WO2019096273A1

WO2019096273A1 - Method and device for transmitting and receiving information

Info

Publication number: WO2019096273A1
Application number: PCT/CN2018/116025
Authority: WO
Inventors: 郭志恒; 谢信乾; 沈祖康; 龙毅; 赵旸; 万蕾; 马瑞泽大卫•简-玛丽
Original assignee: 华为技术有限公司
Priority date: 2017-11-17
Filing date: 2018-11-16
Publication date: 2019-05-23

Abstract

A method and device for transmitting and receiving information, the method comprising: receiving by a terminal device indication information from a network device, the indication information indicating a timing adjustment parameter, and the timing adjustment parameter being used for the terminal device to determine a transmit timing on a first uplink carrier and a second uplink carrier, wherein the first uplink carrier refers to an upper carrier of a radio access technology and wherein the second uplink carrier is an uplink carrier of a second radio access technology; and determining by the terminal device the timing adjustment parameter according to the indication information. The timing adjustment parameter transmitted by the terminal device by means of the network device is used to determine a transmit timing on multiple uplink carriers, so as to ensure that the terminal device maintains the same transmit timing on multiple uplink carriers, thus effectively using uplink resources and avoiding resource waste.

Description

Method and device for transmitting and receiving information

This application claims the priority of the Chinese patent application filed on November 17, 2017, submitted to the Intellectual Property Office of the People's Republic of China, application number 201711148388.X, and the invention name is "a method and device for sending and receiving information". The content is incorporated herein by reference. And the priority of the Chinese patent application filed on January 12, 2018, submitted to the Intellectual Property Office of the People's Republic of China, application number 201810032219.8, and the invention name is "a method and device for sending and receiving information", the entire contents of which are incorporated by reference. Combined in this application.

Technical field

The present application relates to the field of wireless communications technologies, and in particular, to a method and an apparatus for transmitting and receiving information.

Background technique

In a wireless communication system, communication can be classified into different types depending on the type of the transmitting node and the receiving node. Generally, transmitting information to a terminal device by a network device is referred to as downlink communication, and transmitting information to the network device by the terminal device is referred to as uplink communication. In the long term evolution (LTE)/long term evolution advanced (LTE-A) communication system, the frequency division duplex (FDD) mode can be mainly divided according to the duplex mode. And time division duplex (TDD) mode.

For a wireless communication system operating in TDD mode, the downlink carrier and the uplink carrier are carriers of the same carrier frequency. In the new RAT (NR) technology of the 5th generation (5G) mobile communication system, the uplink and downlink decoupling technology can be applied, that is, in addition to the TDD carrier for uplink and downlink communication, The uplink communication is performed by using an additional uplink carrier, which is generally referred to as a supplementary uplink (SUL) carrier. That is, the NR terminal device can have two uplink carriers simultaneously for uplink communication.

Currently, for a terminal device in the LTE-NR dual connectivity (DC) mode, and one NR TDD carrier and one SUL carrier are simultaneously deployed on the NR, the terminal device is configured with at least three uplink carriers, including LTE. Uplink carrier, NR TDD carrier and NR SUL. The timing of the uplink signal transmission by the terminal device on the three uplink carriers needs to be equal to ensure the uplink spectrum efficiency of the terminal device to be maximized, otherwise the uplink resources will be wasted. When the timings of the uplink signals sent by the terminal device on the three uplink carriers are not equal, the terminal device cannot send the uplink signal in some time periods, thereby causing waste of uplink resources.

Summary of the invention

The present application provides a method and an apparatus for transmitting and receiving information, so as to avoid a situation in which uplink resources are wasted due to unequal transmission timings of terminal devices on multiple uplink carriers.

In a first aspect, the application provides a method for sending information, including:

The terminal device receives the indication information from the network device, where the indication information indicates a timing adjustment parameter, where the timing adjustment parameter is used by the terminal device to determine a transmission timing on the first uplink carrier and on the second uplink carrier, where The first uplink carrier is an uplink carrier of the first radio access technology, the second uplink carrier is an uplink carrier of the second radio access technology, and the terminal device determines the timing adjustment parameter according to the indication information.

A timing adjustment parameter sent by the terminal device by using the network device is used to determine the transmission timing on the multiple uplink carriers, so as to ensure that the terminal device maintains the same transmission timing on multiple uplink carriers, and can effectively utilize uplink resources to avoid resource waste.

In a possible design, the second uplink carrier includes at least two second uplink carriers, and the at least two second uplink carriers belong to the same cell; the timing adjustment parameter is used by the terminal device to determine Transmission timing on an uplink carrier and on the at least two second uplink carriers.

The terminal device determines the transmission timing of the multiple uplink carriers corresponding to the same cell in the same radio access technology by receiving an indication information sent by the network device, and can effectively utilize the uplink resource.

In a possible design, the at least two second uplink carriers comprise at least one TDD carrier and at least one SUL carrier.

In a possible design, the first uplink carrier is a carrier of a primary cell, and the second uplink carrier is a carrier of a secondary cell, and the terminal device receives the indication information from the network device, including: The terminal device receives the indication information from the network device on the first downlink carrier, where the first downlink carrier and the first uplink carrier belong to the same cell, or the first downlink carrier and the The first uplink carrier belongs to the same radio access technology.

The terminal device receives the indication information sent by the network device by using the downlink carrier of the primary cell, and can obtain the transmission timing of the multiple uplink carriers that belong to the same radio access technology by using one indication information.

In a possible design, the first radio access technology is LTE, and the second radio access technology is NR.

In a possible design, the first uplink carrier is an uplink carrier of the primary cell, and the second uplink carrier is an uplink carrier of the secondary cell, the method further includes: the terminal device is on the first downlink carrier Receiving, by the network device, a downlink reference signal, where the first downlink carrier and the first uplink carrier belong to the same cell, and the terminal device determines, according to the downlink reference signal, the second uplink carrier. The power of the uplink signal is sent to the network device.

The terminal device receives the downlink reference signal sent by the network device by using the downlink carrier of the primary cell, and determines, by using the downlink reference signal of the primary cell, the power of sending the uplink signal to the network device on the uplink carrier of the secondary cell, so as to avoid the terminal device according to the secondary cell. The downlink reference signal cannot determine the power of transmitting the uplink signal to the network device on the uplink carrier of the secondary cell.

In a possible design, the method further includes: the terminal device receiving a downlink reference signal from the network device on a first downlink carrier, where the first downlink carrier is a first radio access technology The downlink carrier, the first downlink carrier and the first uplink carrier belong to the same cell, and the terminal device determines, according to the downlink reference signal, to send an uplink signal to the network device on the second uplink carrier. Power.

The terminal device receives the downlink reference signal sent by the network device by using the downlink carrier of the first radio access technology, and determines that the downlink reference signal of the first radio access technology is used to send the uplink carrier on the second radio access technology to the network device. The power of the uplink signal prevents the terminal device from determining, according to the downlink reference signal of the second radio access technology, the power of transmitting the uplink signal to the network device on the uplink carrier of the second radio access technology.

In a possible design, the method includes: the terminal device receiving a downlink reference signal from the network device on a first downlink carrier, where the first downlink carrier is the first wireless access a downlink carrier of the technology, the first downlink carrier and the first uplink carrier belong to different cells, and the terminal device determines, according to the downlink reference signal, sending an uplink to the network device on the second uplink carrier. The power of the signal.

In a second aspect, the application provides a method for sending information, including:

The network device determines indication information, where the indication information indicates a timing adjustment parameter, where the timing adjustment parameter is used by the terminal device to determine a transmission timing on the first uplink carrier and on the second uplink carrier, the first uplink carrier An uplink carrier of the first radio access technology, where the second uplink carrier is an uplink carrier of the second radio access technology;

The network device sends the indication information to the terminal device.

In a possible design, the second uplink carrier includes at least two second uplink carriers, and the at least two second uplink carriers belong to the same cell;

The timing adjustment parameter is used by the terminal device to determine a transmission timing on the first uplink carrier and on the at least two second uplink carriers.

In a possible design, the first uplink carrier is a carrier of a primary cell, and the second uplink carrier is a carrier of a secondary cell;

The sending, by the network device, the indication information to the terminal device, including:

The network device sends the indication information to the terminal device on the first downlink carrier, where the first downlink carrier and the first uplink carrier belong to the same cell, or the first downlink carrier And the first uplink carrier belongs to the same radio access technology.

In a possible design, the first uplink carrier is an uplink carrier of the primary cell, and the second uplink carrier is an uplink carrier of the secondary cell, and the method further includes:

The network device sends a downlink reference signal to the terminal device on the first downlink carrier, where the first downlink carrier and the first uplink carrier belong to the same cell.

In a possible design, the method further includes:

The network device sends a downlink reference signal to the terminal device on the first downlink carrier, where the first downlink carrier is a downlink carrier of the first radio access technology, and the first downlink carrier and the downlink carrier The first uplink carrier belongs to the same cell.

In a possible design, the method further includes:

The network device sends a downlink reference signal to the network device on the first downlink carrier, where the first downlink carrier is a downlink carrier of the first radio access technology, and the first downlink carrier And the first uplink carrier belongs to a different cell.

In a third aspect, the application provides a method for sending information, including:

Determining, by the network device, a downlink reference signal, where the downlink reference signal is used by the terminal device to determine, according to the first uplink carrier, the power of sending the uplink signal to the network device;

The network device sends a downlink reference signal to the terminal device on the first downlink carrier, where the first downlink carrier and the first uplink carrier belong to different cells.

In a possible design, the first downlink carrier is a downlink carrier of a primary cell, and the first uplink carrier is an uplink carrier of a secondary cell.

In a possible design, the first downlink carrier is a downlink carrier of the first radio access technology, and the first uplink carrier is an uplink carrier of the second radio access technology.

In a possible design, the first uplink carrier and the second uplink carrier and the second downlink carrier belong to the same cell.

In a possible design, the network device sends the indication information to the terminal device, where the indication information indicates that the terminal device determines to send to the network device on the first uplink carrier according to the downlink reference signal. The power of the uplink signal, or the indication information indicates that the terminal device does not use the downlink reference signal to determine the power of transmitting the uplink signal to the network device on the first uplink carrier.

In a possible design, the network device sends second indication information to the terminal device, where the second indication information is used by the terminal device to determine the downlink reference signal.

In a possible design, the second indication information includes at least one of resource information, sequence information, and power information corresponding to the downlink reference signal.

In a fourth aspect, the application provides a method for receiving information, including:

The terminal device receives the downlink reference signal from the network device on the first downlink carrier, where the downlink reference signal is used by the terminal device to determine the power of sending the uplink signal to the network device on the first uplink carrier;

Determining, by the terminal device, the power of sending an uplink signal to the network device on the first uplink carrier according to the downlink reference signal.

In a possible design, the first downlink carrier and the first uplink carrier belong to different cells;

In a possible design, the terminal device receives the first indication information from the network device, where the first indication information indicates that the terminal device determines, according to the downlink reference signal, that the first uplink carrier is located The power of the uplink signal is sent by the network device, or the first indication information indicates that the terminal device does not use the downlink reference signal to determine the power of sending the uplink signal to the network device on the first uplink carrier.

In a possible design, the terminal device receives second indication information from the network device, where the second indication information is used by the terminal device to determine the downlink reference signal.

In a possible design, the second indication information includes at least one of resource information, sequence information, or power information corresponding to the downlink reference signal.

In a fifth aspect, the application provides a method for receiving information, including:

The terminal device receives the indication information sent by the network device, where the indication information includes a timing adjustment parameter, where the timing adjustment parameter is used by the terminal device to determine a transmission timing on the first uplink carrier and on the second uplink carrier;

The terminal device determines the timing adjustment parameter according to the indication information.

In a possible design, the first uplink carrier and the second uplink carrier are uplink carriers in the same cell.

In a possible design, the first uplink carrier is a TDD carrier, and the second uplink carrier is a SUL carrier;

The timing adjustment parameter is used by the terminal device to determine a transmission timing on the TDD carrier and the SUL carrier.

In a possible design, the terminal device sends a first access timing of the random access signal to the network device on the first uplink carrier, and the terminal device sends the random access signal to the network on the second uplink carrier. The second timing of the device transmitting the random access signal is equal.

In a possible design, the first timing of the terminal device transmitting a random access signal to the network device on the first uplink carrier is opposite to receiving a downlink signal from the network device on a first downlink carrier. a first timing offset value of the third timing, and a second timing of the random access signal sent by the terminal device to the network device on the second uplink carrier with respect to the first downlink carrier The second timing offset value of the third timing of receiving the downlink signal from the network device is equal, where the first downlink carrier is a TDD carrier with the first uplink carrier, and the first downlink A row carrier is associated with the first uplink carrier.

In a possible design, the terminal device sends a first access timing of the random access signal to the network device on the first uplink carrier, and the terminal device sends the random access signal to the network on the second uplink carrier. The second timing at which the device sends the random access signal is not equal.

In a possible design, the first timing of the terminal device transmitting a random access signal to the network device on the first uplink carrier is opposite to receiving a downlink signal from the network device on a first downlink carrier. a first timing offset value of the third timing, and a second timing of the random access signal sent by the terminal device to the network device on the second uplink carrier with respect to the first downlink carrier The second timing offset value of the third timing of receiving the downlink signal from the network device is not equal, where the first downlink carrier is a TDD carrier with the first uplink carrier, and the first A downlink carrier is associated with the first uplink carrier.

In one possible design, the first offset value is greater than zero and the second offset value is equal to zero.

In a sixth aspect, the application provides a method for sending information, including:

The network device determines indication information, where the indication information includes a timing adjustment parameter, where the timing adjustment parameter is used by the terminal device to determine a transmission timing on the first uplink carrier and on the second uplink carrier;

The network device sends the indication information to the terminal device.

The timing adjustment parameter is used to instruct the terminal device to determine a transmission timing on the TDD carrier and the SUL carrier.

In a seventh aspect, the application provides a method for sending information, including:

The terminal device determines power information corresponding to the target uplink carrier, where the target uplink carrier is one of the first uplink carrier or the second uplink carrier;

The terminal device sends the power information and the indication information to the network device, where the indication information is used to indicate the target uplink carrier.

In a possible design, the power information includes a difference between a first power and a second power, the first power includes a maximum transmit power of the terminal device, and the second power includes an estimated by the terminal device. Uplink signal transmission power.

In a possible design, the first uplink carrier and the second uplink carrier belong to the same cell.

In a possible design, the terminal device carries the power information and the indication information in the same message and sends the information to the network device.

In a possible design, the indication information includes 1 bit, and when the bit is 0, the indication information indicates the first uplink carrier, and if the bit is 1, the indication The information indicates the second uplink carrier.

In one possible design, the indication information is implicitly included in the power information.

In an eighth aspect, the application provides a method for receiving information, including:

The network device receives the power information and the indication information from the terminal device, where the indication information is used to indicate the target uplink carrier, and the target uplink carrier is one of the first uplink carrier or the second uplink carrier;

Determining, by the network device, the target uplink carrier corresponding to the power information according to the indication information.

In a possible design, the first power includes a maximum transmit power of the terminal device corresponding to the target uplink carrier, and the second power includes a signal estimated by the terminal device on the target uplink carrier. Transmit power.

In one possible design, the network device receives the power information and the indication information from the network device in the same message.

In a ninth aspect, the application provides a method for sending information, including:

Determining, by the network device, power control information corresponding to the first terminal device and indication information corresponding to the first terminal device, where the power control information is used by the first terminal device to determine uplink transmit power, where the indication information is used Indicate a target uplink carrier, where the target uplink carrier is one of a first uplink carrier or a second uplink carrier;

The network device carries the power control information and the indication information in a downlink control information and sends the information to the first terminal device.

In a possible design, the downlink control information further includes power control information corresponding to the second terminal device, and the network device sends the downlink control information to the second terminal device.

In a tenth aspect, the application provides a method for receiving information, including:

The terminal device receives the power control information and the indication information from the network device, where the power control information is used to instruct the terminal device to determine the transmit power on the target uplink carrier, where the target uplink carrier is the first uplink carrier or the second One of the uplink carriers, where the indication information is used to indicate the target uplink carrier;

Determining, by the terminal device, the target uplink carrier corresponding to the power control information according to the indication information.

In an eleventh aspect, an embodiment of the present application provides an information receiving apparatus, which may be a terminal device or a chip in a terminal device. The apparatus has the functions of implementing the various embodiments of the first, fourth, fifth, seventh and tenth aspects described above. This function can be implemented in hardware or in hardware by executing the corresponding software. The hardware or software includes one or more modules corresponding to the functions described above.

In a possible design, when the device is a terminal device, the terminal device includes: a processing unit and a communication unit, the processing unit may be, for example, a processor, the communication unit may be, for example, a transceiver, and the transceiver includes a radio frequency circuit, optionally The terminal device further includes a storage unit, which may be, for example, a memory. When the terminal device includes a storage unit, the storage unit stores a computer execution instruction, and the processing unit is connected to the storage unit, and the processing unit executes a computer execution instruction stored by the storage unit, so that the terminal device performs the first aspect, A method of information reception according to any of the fourth aspect, the fifth aspect, the seventh aspect, and the tenth aspect.

In another possible design, when the device is a chip in the terminal device, the chip comprises: a processing unit and a communication unit, the processing unit may be, for example, a processor, and the communication unit may be, for example, an input/output interface, a pin or Circuits, etc. The processing unit may execute a computer-executed instruction stored by the storage unit to cause the method of receiving information of any of the first aspect, the fourth aspect, the fifth aspect, the seventh aspect, and the tenth aspect described above to be performed. Optionally, the storage unit is a storage unit in the chip, such as a register, a cache, etc., and the storage unit may also be a storage unit located outside the chip in the terminal device, such as a read-only memory, other types that can store static information and instructions. Static storage devices, random access memories, and the like.

In a twelfth aspect, the present application provides an information sending apparatus, which may be a network device or a chip in a network device. The apparatus has the functions of implementing the embodiments of the second, third, sixth, eighth and ninth aspects described above. This function can be implemented in hardware or in hardware by executing the corresponding software. The hardware or software includes one or more modules corresponding to the functions described above.

In a possible design, when the device is a network device, the network device includes: a processing unit and a communication unit, the processing unit may be, for example, a processor, the communication unit may be, for example, a transceiver, and the transceiver includes a radio frequency circuit, optionally The network device also includes a storage unit, which may be, for example, a memory. When the network device includes a storage unit, the storage unit stores a computer execution instruction, and the processing unit is connected to the storage unit, and the processing unit executes a computer execution instruction stored by the storage unit, so that the terminal device performs the second aspect, A method of transmitting information according to any of the third aspect, the sixth aspect, the eighth aspect, and the ninth aspect.

In another possible design, when the device is a chip in a network device, the chip comprises: a processing unit and a communication unit, the processing unit may be, for example, a processor, and the communication unit may be, for example, an input/output interface, a pin or Circuits, etc. The processing unit may execute a computer-executed instruction stored by the storage unit to cause the method of transmitting information of any of the second aspect, the third aspect, the sixth aspect, the eighth aspect, and the ninth aspect to be performed. Optionally, the storage unit is a storage unit in the chip, such as a register, a cache, etc., and the storage unit may also be a storage unit outside the chip in the network device, such as a read-only memory (ROM), and may be stored. Other types of static storage devices, random access memory (RAM), etc. for static information and instructions.

The processor mentioned in any of the above may be a general central processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more An integrated circuit for controlling a program for performing the method of information reception of the first aspect, the fourth aspect, the fifth aspect, the seventh aspect, and the tenth aspect.

Wherein, the processor mentioned in any of the above may be a general-purpose central processing unit, a microprocessor, an application specific integrated circuit, or one or more for controlling the execution of the second aspect, the third aspect, and the sixth aspect. An integrated circuit of the program of the method of information transmission of the eighth aspect and the ninth aspect.

In a thirteenth aspect, embodiments of the present application further provide a computer readable storage medium having instructions stored in a computer, when executed on a computer, causing the computer to perform the method described in the above aspects .

In a fourteenth aspect, embodiments of the present application also provide a computer program product comprising instructions that, when executed on a computer, cause the computer to perform the methods described in the various aspects above.

DRAWINGS

1 is a schematic structural diagram of a communication network system provided by the present application;

2a to 2d are schematic diagrams showing an application scenario of a method for transmitting and receiving information according to the present application;

3 is a schematic diagram of a downlink-transmitted radio frame and a radio frame for uplink reception according to the present application;

4 is a schematic diagram of a scenario of sending timing alignment provided by the present application;

FIG. 5 is a schematic diagram of a scenario in which transmission timing is not aligned according to the present application; FIG.

FIG. 6 is a schematic flowchart diagram of a method for sending and receiving information according to the present application;

FIG. 7 is a schematic flowchart diagram of a method for sending and receiving information according to the present application;

FIG. 8 is a schematic flowchart diagram of a method for power control according to the present application; FIG.

FIG. 9 is a schematic flowchart diagram of a method for power control provided by the present application;

FIG. 10 is a schematic flowchart diagram of a method for power control provided by the present application;

FIG. 11 is a schematic flowchart diagram of a method for power control according to the present application;

12 is a schematic flowchart diagram of a method for power control provided by the present application;

FIG. 13 is a schematic structural diagram of an apparatus for transmitting information according to the present application;

FIG. 14 is a schematic structural diagram of an apparatus for transmitting information according to the present application; FIG.

FIG. 15 is a schematic structural diagram of an apparatus for receiving information according to the present application; FIG.

FIG. 16 is a schematic structural diagram of an apparatus for receiving information according to the present application.

Detailed ways

The present invention provides a method for transmitting and receiving information, which can be applied to a communication network system. Referring to FIG. 1, a structural diagram of a possible communication network system provided by an embodiment of the present application is shown. As shown in FIG. 1, the communication network system includes a network device 101 and a plurality of terminal devices 102. The network device 101 and the plurality of terminal devices 102 can communicate via an air interface protocol.

The network device 101 mentioned in the present application is a device for accessing a terminal to a wireless network, including but not limited to: an evolved node B (eNB), a radio network controller (radio network controller, RNC). ), Node B (NB), base station controller (BSC), base transceiver station (BTS), home base station (eg, home evolved node B, or home node B, HNB), Baseband unit (BBU), base station (g nodeB, gNB), transmission and receiving point (TRP), transmitting point (TP), mobile switching center, etc. In addition, wifi access may also be included. Access point (AP), etc.

The terminal device 102 mentioned in the present application may be a device having a wireless transceiving function, which may be deployed on land, including indoor or outdoor, handheld, wearable or on-board; or may be deployed on the water surface (such as a ship, etc.); Deployed in the air (such as airplanes, balloons, satellites, etc.). The terminal device may be a mobile phone, an Internet of Things (IoT) terminal device, a tablet (Pad), a computer with wireless transceiver function, a virtual reality (VR) terminal device, augmented reality (augmented reality, AR) terminal equipment, wireless terminal in industrial control, wireless terminal in self driving, wireless terminal in remote medical, wireless terminal in smart grid, A wireless terminal in a transportation safety, a wireless terminal in a smart city, a wireless terminal in a smart home, and the like. The embodiment of the present application does not limit the application scenario. A terminal device may also be referred to as a user equipment (UE), an access terminal device, a UE unit, a UE station, a mobile station, a mobile station, a remote station, a remote terminal device, a mobile device, a UE terminal device, a terminal device, Wireless communication device, UE proxy or UE device, and the like. That is to say, the device that can communicate with the network device can be used as the terminal device in the present application. For the convenience of description, the UE can be used for introduction.

In the present application, the system architecture shown in FIG. 1 is taken as an example, but is not limited thereto. For example, the present application is also applicable to the system architecture of the macro base station and the micro base station communication, and is not limited thereto.

The communication system applicable to the above system architecture includes but is not limited to: time division duplexing-long term evolution (TDD LTE), frequency division duplexing-long term evolution (FDD LTE) Long term evolution-advanced (LTE-A), and various wireless communication systems (e.g., new rat (NR) systems) that evolve in the future.

Taking the NR system as an example, the terminal device can send an uplink signal to the network device by using a uplink uplink (SUL) carrier. The SUL carrier refers to a carrier that has only uplink resources for the current standard transmission. For example, in the NR system, the carrier A is only used for uplink transmission of the NR, the carrier is not used for downlink transmission, or the carrier A can be used for the LTE communication system. For uplink transmission and not for downlink transmission of NR, the carrier A is a SUL carrier.

In a possible scenario, referring to FIG. 2a, the network device 101 is a network device of the NR, and the network device 101 deploys two uplink carriers for the terminal device 102 to send signals to the network device 101, respectively, which are TDD carriers (carrier b1) And the SUL carrier (carrier b2), both of which can be used for uplink communication between the terminal device and the network device. At this time, the TDD carrier and the SUL carrier belong to the same cell.

In another possible scenario, referring to FIG. 2b, the network device 101a and the network device 101b are network devices belonging to two different wireless access technologies, and the network device 101a and the network device 101b are co-located, and the terminal device 102 can Access both network devices at the same time. The network device 101a deploys an uplink carrier (a1), and the network device 101b deploys an uplink carrier (a2). For example, the network device of the NR and the network device of the LTE are co-located, and the terminal device 102 can access the network device of the NR and the LTE at the same time. The terminal device 102 sends an uplink signal to the network device of the NR through the uplink carrier of the NR, and uplinks through the LTE. The carrier transmits an uplink signal to the network device of the LTE. A possible implementation manner is that the terminal device accesses the NR network device in a time division duplex mode, and accesses the LTE network device in a frequency division duplex mode. It should be noted that the terminal device can access the NR and LTE network devices by means of dual-connected DC, or can access the NR and LTE network devices by using carrier aggregation CA. In the prior art, one of DC and CA The important difference is that when the terminal device adopts the DC mode, the multiple carriers accessed by the terminal device respectively have an independent media access control MAC layer protocol stack, and when the terminal device adopts the CA mode, the terminal device shares multiple carriers. The only MAC layer protocol stack. With the evolution of wireless communication technologies, the definitions and differences between DCs and CAs may be the same as or different from the prior art.

In another possible scenario, referring to FIG. 2c, the network device 101a and the network device 101b belong to two different wireless access technologies, and the network device 101a and the network device 101b are co-located, and the terminal device 102 can be connected at the same time. Enter these two network devices. The network device 101a deploys one uplink carrier, and the network device 101b deploys two uplink carriers. For example, the network device 101a may be a network device of LTE, and the network device 101b may be a network device of the NR. The LTE network device deploys one LTE UL carrier (c1), and the NR network device deploys one TDD carrier (c2) and one SUL carrier (c3). It should be noted that, in this scenario, the SUL carrier of the NR and the UL carrier of the LTE may be uplinks of the same frequency, that is, the SUL carrier that is understood to be the NR and the UL carrier of the LTE share the uplink. For example, the frequency of the NR UL carrier and the NR DL carrier is 3.5 GHz, the LTE UL carrier is 1.75 GHz, the LTE DL carrier is 1.85 GHz, and the NR SUL carrier is 1.75 GHz. Of course, the SUL carrier of the NR and the UL carrier of the LTE may also be uplinks of different frequencies. For example, the frequency of the SUL carrier of the NR is 700 MHz, and the frequency of the UL carrier of the LTE is 1.8 GHz.

In another possible scenario, referring to FIG. 2d, the network device 101a and the network device 101b belong to network devices of different radio access technologies, and the network device 101a and the network device 101b are non-co-located. Specifically, the network device 101a It may be a network device of LTE, and the network device 101b may be a network device of the NR. The network device of LTE and the network device of NR are two network devices different in physical location, and the network device of NR deploys UL carrier (d1) of NR and SUL carrier (d2) of NR for uplink transmission, but LTE and NR The SUL carrier is co-located, the UL carrier of the NR is non-co-site with the SUL carrier of the NR or LTE. It should be noted that, in this scenario, the SUL carrier of the NR and the UL carrier of the LTE may be uplinks of the same frequency, that is, the SUL carrier that is understood to be the NR and the UL carrier of the LTE share the uplink. For example, the frequency of the NR UL carrier and the NR DL carrier is 3.5 GHz, the LTE UL carrier is 1.75 GHz, the LTE DL carrier is 1.85 GHz, and the NR SUL carrier is 1.75 GHz. Of course, the SUL carrier of the NR and the UL carrier of the LTE may also be uplinks of different frequencies. For example, the frequency of the SUL carrier of the NR is 700 MHz, and the frequency of the UL carrier of the LTE is 1.75 GHz.

The timing in the present application can be understood as the starting time (or the ending time) at which the transmitting device transmits a signal, or the starting time (or the ending time) at which the receiving device receives the signal. For convenience of description, a radio frame is taken as an example, and of course, other types of time units such as time slots and symbols may be used.

The timing for signal transmission can generally be understood as an absolute time. When the terminal device sends the uplink signal, the terminal device needs to determine the start time of the radio frame for downlink reception according to the received synchronization signal, where the start time of the radio frame for downlink reception can be used as a reference point. Further, the start time of the radio frame for uplink transmission is determined according to the start time of the radio frame. At this time, the start time of the radio frame for uplink transmission can be regarded as timing, and the timing is an absolute time. The terminal device then transmits the uplink signal according to the timing.

It should be understood that timing can be understood as a single point in time. In other words, a timing can include multiple points in time (multiple moments). If the plurality of times includes at least three times, the at least three times are arranged at equal intervals. For example, suppose that the starting time of the radio frame used by the terminal device for downlink reception is used as the reference time, which is recorded as 0 milliseconds (millisecond, ms), and the length of one radio frame is recorded as 10 ms, and the terminal device is used for the downlink received radio frame. The timing may include 0ms, 10ms, 20ms, ..., multiple times, that is, the terminal device may receive downlink signals in all or part of 0ms, 10ms, 20ms, ..., multiple time points. The start time of the radio frame for the uplink transmission is earlier than the start time of the radio frame for downlink reception, and the timing for the uplink transmission by the terminal device may include (0-x) ms. (10-x) ms, (20-x) ms, ..., multiple time instants. Of course, the multiple moments may also be arranged at unequal intervals, which are not limited herein.

For the amount of time advancement, it can be understood from the perspective of relative time. The timings specified in the communication protocol are relative moments. Generally, a time reference point is defined in the communication protocol, and the timing in the communication protocol usually has a certain offset with respect to the time reference point. 3 is a schematic diagram of a radio frame for downlink transmission and a radio frame for uplink reception. The protocol generally uses the start time of the radio frame for downlink reception as a time reference point. As shown in FIG. 3, the start time of the radio frame used by the terminal device for uplink transmission is defined relative to the radio frame used for downlink reception. The start time is advanced by x ms, which can be considered as a timing advance. The number of these two radio frames can be the same.

In the prior art, the network device sends timing adjustment indication information to the terminal device, where the timing adjustment indication information carries a timing adjustment parameter, where the timing adjustment parameter is a TA value, for example, the TA value may be equal to 10, The terminal device should understand that its uplink transmission timing is 10×Ts seconds ahead of the downlink reception timing, where Ts is the timing adjustment granularity.

The NR system supports terminals operating in NR and LTE dual connectivity (DC) mode, ie, the terminal can operate in both LTE and NR systems. Referring to the scenario shown in FIG. 2c, the network device of the NR can deploy one TDD carrier and one SUL carrier, and the network device of the LTE can deploy one FDD carrier. For the terminal device of the LTE-NR DC, the terminal device is configured with at least three uplink carriers, including an LTE uplink carrier, a TDD carrier of the NR, and a SUL carrier of the NR. The timing of the uplink signal transmission by the terminal device on the three uplink carriers needs to be equal to ensure the uplink spectrum efficiency of the terminal device to be maximized, otherwise the uplink resources will be wasted. As shown in FIG. 4, in the scenario of timing alignment, when the terminal device switches to transmit uplink signals on different uplink carriers, signals are transmitted at all uplink times.

At present, since the timing adjustment parameters of the LTE and the timing adjustment parameters of the NR are separately transmitted, the timings of the terminal devices on different uplink carriers may be unequal. When the timings of the uplink signals sent by the terminal device on the three uplink carriers are not equal, as shown in FIG. 5, the terminal device cannot send the uplink signal in some time periods, thereby causing waste of uplink resources.

In order to solve this technical problem, FIG. 6 exemplarily shows a flow of information transmission and reception provided by the present application. The flow of sending and receiving the information is described below by means of interaction between the network device and the base station.

As shown in FIG. 6, the process specifically includes:

Step 601: The network device determines the indication information.

In the present application, the indication information is used to indicate timing adjustment parameters. The timing adjustment parameter is used by the terminal device to determine a transmission timing on the first uplink carrier and the second uplink carrier, where the first uplink carrier is an uplink carrier of the first radio access technology, and the second uplink carrier is a second The uplink carrier of the radio access technology.

It should be noted that the first radio access technology may be LTE, and the second radio access technology may be NR. Correspondingly, the network device may be a network device of LTE or a network device of NR. It should be understood that LTE and NR may be co-located. In this case, although LTE and NR belong to the same network device physically, it is logically understood that there are two network devices, that is, one LTE network device and one NR. The network device is either understood to have two serving cells, one LTE cell, and one NR cell. It should be understood that the cell of LTE and the cell of NR belong to the same timing adjustment group.

Since the uplink carrier of the NR may further include a SUL carrier, the second uplink carrier may include at least two uplink carriers, and the at least two uplink carriers belong to the same cell. At this time, the timing adjustment parameter is used by the terminal device to determine the transmission timing on the first uplink carrier and on the at least two second uplink carriers. Certainly, when the second uplink carrier is an uplink carrier of the NR, the at least two second uplink carriers may include at least one TDD carrier and at least one SUL carrier, where the TDD carrier may also be referred to as an NR UL carrier. It can be directly referred to as a UL carrier, and may of course be other names, which are not limited herein. For example, when there are three second uplink carriers, it may be a combination of two TDD carriers and one SUL carrier, or may be a combination of one TDD carrier and two SUL carriers. At this time, correspondingly, the timing adjustment parameter is used by the terminal device to determine the transmission timing on the first uplink carrier, on the at least one TDD carrier, and on the at least one SUL carrier. It should be understood that the first uplink carrier, the at least one TDD carrier, and the at least one SUL carrier belong to the same timing adjustment group.

Step 602: The network device sends the indication information to the terminal device.

There are two serving cells in the coverage of the network device, one is the LTE cell, and the other is the NR cell. The indication information may be sent by the LTE cell to the terminal device, or may be sent by the NR cell to the terminal device. By transmitting the indication information of the timing adjustment parameter, the timing adjustment parameter for determining the plurality of uplink carriers can be indicated to the terminal device, so that the terminal device can maintain the same transmission timing on the multiple uplink carriers.

It should be noted that the first uplink carrier may be a carrier of a primary cell, and the second uplink carrier may be a carrier of a secondary cell, and the first uplink carrier may be a carrier of an LTE, and the second uplink carrier may be The carrier of the NR is a cell of the LTE, and the cell of the NR is a secondary cell. The network device may send indication information to the terminal device on the first downlink carrier, where the terminal device may receive the indication information from the network device. The first downlink carrier and the first uplink carrier may belong to the same cell. For example, the first downlink carrier and the first uplink carrier belong to the same LTE cell.

Step 603: The terminal device receives the indication information from the network device, and determines a timing adjustment parameter according to the indication information.

After receiving the indication information, the terminal device may determine the timing adjustment parameter according to the indication information. Therefore, the terminal device can determine the transmission timing on the first uplink carrier and on the second uplink carrier according to the timing adjustment parameter. Specifically, when the network device uses the same timing adjustment parameter to indicate that the terminal device performs timing adjustment on the UL carrier of the LTE and the UL carrier of the NR, the terminal device determines the UL carrier in the LTE according to the timing adjustment parameter. Transmission timing on the UL carrier of the NR. When the network device uses the same timing adjustment parameter to indicate that the terminal device performs timing adjustment on the LTE UL carrier, the NR UL carrier, and the NR SUL carrier, the terminal device determines the LTE UL carrier according to the timing adjustment parameter. Transmission timing on the UL carrier of NR and the SUL carrier of NR. When the network device uses the same timing adjustment parameter for instructing the terminal device to perform timing adjustment on the UL carrier of the LTE and the SUL carrier uplink of the NR, the terminal device determines, according to the timing adjustment parameter, the transmission on the LTE UL carrier and the NR SUL carrier. timing.

It should be noted that the timing adjustment parameter sent by the network device to the terminal device may be a positive number or a zero number, or may be a negative number. Specifically, when the timing adjustment parameter sent by the network device to the terminal device is a negative number, the terminal device determines the uplink transmission timing lag and the downlink reception timing. For example, if the value of the timing adjustment parameter TA is -20, the terminal device determines that the uplink transmission timing is delayed by 20×Ts with respect to the downlink reception timing, and the Ts is the timing adjustment granularity. For another example, if the value of the timing adjustment parameter TA is 10, the terminal device determines that the uplink transmission timing is 10×Ts ahead of the downlink reception timing. For example, if the timing adjustment granularity TA has a value of 0, the terminal device determines that the timing of the uplink transmission does not change with respect to the downlink reception timing. The embodiments of the present application are merely exemplary functions, and no limitation is imposed thereon.

The application also provides a process for sending and receiving information, which can be applied to the scenario shown in FIG. 2a above.

As shown in FIG. 7, the process specifically includes:

In step 701, the network device determines the indication information.

The indication information includes a timing adjustment parameter, and the timing adjustment parameter is used by the terminal device to determine a transmission timing on the first uplink carrier and on the second uplink carrier. The first uplink carrier and the second uplink carrier are uplink carriers in the same cell. For example, the first uplink carrier and the second uplink carrier are two uplink carriers of the NR, and the first uplink carrier is a TDD carrier. The second uplink carrier is a SUL carrier. The timing adjustment parameter is used by the terminal device to determine the transmission timing on the TDD carrier and the SUL carrier.

Step 702: The network device sends the indication information to the terminal device.

Step 703: The terminal device receives the indication information sent by the network device, and determines a timing adjustment parameter according to the indication information.

After receiving the indication information sent by the network device, the terminal device may adjust the parameter according to the timing. Correspondingly, the first subcarrier spacing of the terminal device performing uplink transmission on the TDD carrier of the NR may be the same as or different from the uplink transmission of the second subcarrier spacing on the SUL carrier of the NR.

When the first subcarrier spacing and the second subcarrier spacing are different, the timing adjustment granularity corresponding to the timing adjustment parameter is related to the subcarrier spacing of the uplink transmission by the terminal device. For example, the timing adjustment granularity T1 corresponding to the 15KHz subcarrier spacing is 0.25Ts, and the timing adjustment granularity corresponding to the 30KHz subcarrier spacing is T2 is 0.5Ts, that is, the timing adjustment granularity corresponding to different subcarrier spacings is different. Therefore, when the network device sends the timing adjustment parameter to the terminal device, the terminal device needs to determine the timing adjustment granularity corresponding to the timing adjustment parameter TA.

In a possible manner, the terminal device determines that the timing adjustment granularity is a timing adjustment granularity corresponding to a larger one of the first subcarrier interval and the second subcarrier interval. For example, the timing adjustment granularity T1 corresponding to the 15KHz subcarrier spacing is 0.25Ts, and the timing adjustment granularity corresponding to the 30KHz subcarrier spacing is T2 is 0.5Ts. At this time, the terminal device can determine the timing adjustment granularity to be 0.5Ts; the 15KHz subcarrier The timing adjustment granularity T1 corresponding to the interval is Ts, and the timing adjustment granularity corresponding to the 30KHz subcarrier spacing is T2 is 0.5Ts. At this time, the terminal device can determine that the timing adjustment granularity is Ts.

In another possible manner, the terminal device determines that the timing adjustment granularity is a timing adjustment granularity corresponding to a smaller one of the first subcarrier interval and the second subcarrier interval. For example, the timing adjustment granularity T1 corresponding to the 15KHz subcarrier spacing is 0.25Ts, and the timing adjustment granularity corresponding to the 30KHz subcarrier spacing is T2 is 0.5Ts. At this time, the terminal device can determine the timing adjustment granularity to be 0.25Ts; 15KHz subcarrier The timing adjustment granularity T1 corresponding to the interval is Ts, and the timing adjustment granularity corresponding to the 30KHz subcarrier spacing is T2 is 0.5Ts. At this time, the terminal device can determine that the timing adjustment granularity is 0.5Ts.

In another possible manner, the terminal device determines a timing adjustment granularity corresponding to the first subcarrier spacing of the UL carrier whose granularity is NR, for example, the timing adjustment granularity corresponding to the first subcarrier spacing of the UL carrier of the NR is 0.4. Ts, the terminal applies the timing adjustment granularity to 0.4Ts.

In another possible manner, the network device carries the indication information indicating the timing adjustment granularity in the message carrying the timing adjustment parameter, and the terminal device determines the corresponding timing adjustment granularity according to the indication information. For example, the network device may adopt a display indication manner, that is, the indication information directly indicates a timing adjustment granularity value or an index. For example, the indication information may be 1 bit information, the status 0 indicates an adjustment granularity value Ts, and the status 1 indicates an adjustment granularity value of 0.5. Ts, specifically as shown in Table 1. The network device may also adopt an implicit indication manner, that is, the indication information may indicate an index or a sub-carrier spacing value or an index, so that the terminal device first determines a corresponding uplink or sub-carrier spacing according to the indication information, and then according to the uplink or the uplink or The subcarrier spacing determines the corresponding timing adjustment granularity value. The embodiments in the present application are merely exemplary functions, and no limitation is imposed thereon.

Table 1

指示信息Instructions	状态0State 0	状态1State 1
定时调整粒度Timing adjustment granularity	TsTs	0.5Ts0.5Ts

Before the terminal device receives the indication information sent by the network device, the terminal device needs to send a random access signal to the network device, so that the network device determines the timing adjustment parameter. The terminal device may send a random access signal to the network device on the first uplink carrier, or may send a random access signal to the network device on the second uplink carrier, where the random access signal may be a random preamble sequence (Preamble).

Optionally, the first timing of the terminal device transmitting the random access signal to the network device on the first uplink carrier has a first timing offset relative to the receiving timing of the terminal device receiving the downlink signal from the network device on the first downlink carrier. And shifting, and the second timing of the terminal device transmitting the random access signal to the network device on the second uplink carrier also has a first timing offset relative to the receiving timing of the terminal device receiving the downlink signal from the network device on the first downlink carrier. Move the value. For example, the first timing offset value may be a predetermined parameter in the protocol. For example, the first timing offset value may be N _TAoffset in LTE or NR, that is, the terminal device sends a random connection on the first uplink carrier. The N _TAoffset corresponding to the incoming signal is equal to the value of the N _TAoffset used by the terminal device to send the random access signal on the second uplink carrier, or can be understood as the same N _TAoffset . For example, the first timing offset value may be sent by the network device to the terminal device. Specifically, the first timing offset value may be a first value or a second value, and the network device sends the terminal device to the terminal device. The indication information is used to indicate that the first timing offset value is a first value or a second value. The first uplink carrier may be a TDD carrier, the second uplink carrier may be a SUL carrier, and the first downlink carrier may be a TDD carrier associated with the first uplink carrier, it being understood that the first downlink carrier and the second downlink carrier The uplink carriers are respectively uplink and downlink of one TDD carrier. The first timing of the terminal device transmitting the random access signal to the network device on the first uplink carrier is equal to the second timing of sending the random access signal to the network device on the second uplink carrier, so that the terminal device is configured for the first uplink carrier and The second uplink carrier only needs to determine one timing or one timing offset value, which is simpler than determining two different timings or two different timing offset values for the first uplink carrier and the second uplink carrier, that is, can be reduced. The complexity of the terminal device.

In the above embodiment, the first uplink carrier and the second uplink carrier belong to the same first timing adjustment group. Further, the terminal device may further have a third uplink carrier and a fourth uplink carrier, and the third uplink carrier and the fourth uplink carrier. The uplink carrier belongs to the second timing adjustment group different from the first timing adjustment group. At this time, the network device may send two indication information to the terminal device, and the indication information indicates the first timing of the terminal device in the first timing adjustment group. The offset value, another indication information indicating that the terminal device adjusts the second timing offset value of the group at the second timing. That is, the terminal device receives the first indication information from the network device, where the first indication information is used to indicate a first timing offset value corresponding to the first timing adjustment group of the terminal device. Optionally, the terminal device further receives, from the network device, second indication information, where the second indication information is used to indicate a second timing offset value corresponding to the second timing adjustment group of the terminal device, where the first timing offset The value and the second timing offset value may be the same or different. That is to say, for different timing adjustment groups, the network device may adjust the individual configuration timing offset values for each timing adjustment group, wherein the timing offset values corresponding to different timing adjustment groups may be the same or different. Taking the timing offset value as N _TAoffset as an example, for different timing adjustment groups, the network device can separately configure N _TAoffset for the terminal device for each timing adjustment group, wherein the N _TAoffset corresponding to different timing adjustment groups can be the same, Can be different. Optionally, the uplink carriers in the same timing adjustment group may belong to the same frequency band or belong to different frequency bands. For example, the first uplink carrier in the first timing adjustment group belongs to the first frequency band, and the first timing adjustment group The second uplink carrier belongs to the second frequency band. Optionally, the first frequency band is a frequency band below 6 GHz, and the second frequency band is a frequency band above 6 GHz. It should be noted that the method is not limited to the foregoing embodiment, and may be applied to other applicable scenarios. The medium uplink carrier of a timing adjustment group is not limited to two, and may be one or three. Or more, and at the same time, it is not limited to a plurality of uplink carriers of one terminal device, which may belong to one or two timing adjustments, and may of course be three or more.

Optionally, the first timing of the terminal device transmitting the random access signal to the network device on the first uplink carrier has a first timing offset relative to the receiving timing of the terminal device receiving the downlink signal from the network device on the first downlink carrier. The second timing of the terminal device transmitting the random access signal to the network device on the second uplink carrier has a second timing offset with respect to the receiving timing of the terminal device receiving the downlink signal from the network device on the first downlink carrier. The value, the first timing offset value is not equal to the second timing offset value. Specifically, the first/second timing offset value may be a predetermined parameter in the protocol, for example, the first timing offset value may be N _TAoffset in LTE or NR, that is, the terminal device is on the first uplink carrier. The N _TAoffset1 corresponding to the random access signal is not equal to the value of the N _TAoffset2 used by the terminal device to send the random access signal on the second uplink carrier. The first uplink carrier may be a TDD carrier, the second uplink carrier may be a SUL carrier, and the first downlink carrier may be a TDD carrier associated with the first uplink carrier. Preferably, N _TAoffset2 can be equal to 0, and N _{TAoffset1 is} greater than 0. This is beneficial to improve the performance of the network device receiving the random access signal from the terminal device when the SUL carrier is LTE and NR shared, and can avoid the LTE terminal device and the NR. The terminal device transmits interference between random access signals.

Optionally, the first timing of the terminal device transmitting the random access signal to the network device on the first uplink carrier has a first timing offset relative to the receiving timing of the terminal device receiving the downlink signal from the network device on the first downlink carrier. The second timing of the terminal device transmitting the random access signal to the network device on the second uplink carrier has a second timing offset with respect to the receiving timing of the terminal device receiving the downlink signal from the network device on the first downlink carrier. The value, the first timing offset value and the second timing offset value may or may not be equal. Specifically, the first/second timing offset value may be a predetermined parameter in the protocol, for example, the first timing offset value may be N _TAoffset in LTE or NR. For example, the protocol pre-defines at least two values, such as the first value and the second value, the terminal device determines that the first timing offset value is equal to the first value, and the terminal device receives, from the network device, the second timing offset is The indication information of the first value or the second value and determining, according to the indication information, that the second timing offset is equal to the first value or the second value. For another example, the protocol defines at least two values, such as the first value and the second value, the terminal device determines that the first timing offset value is equal to the first value, and the terminal device determines the second offset value according to the predefined rule. Equal to the first value or the second value. The first uplink carrier may be a TDD carrier, the second uplink carrier may be a SUL carrier, and the first downlink carrier may be a TDD carrier associated with the first uplink carrier. Preferably, the second value may be equal to 0 and the first value is greater than zero. In this way, the terminal device is notified by the indication information to send the timing offset value of the random access signal, and the transmission timing of the terminal device can be flexibly adjusted.

It should be noted that the foregoing method for transmitting the timing of the random access signal and the timing offset to the terminal device is not limited to the embodiment in the present application, and may be applied to other applicable situations, and may also be used as an independent method. There is no limit here.

Optionally, in combination with the scenario shown in FIG. 2b, in the present application, the first subcarrier spacing of the uplink transmission performed by the terminal device on the UL carrier of the NR and the second subcarrier of the uplink transmission performed on the UL carrier uplink of the LTE are performed. The intervals can be the same or different. When the first subcarrier spacing and the second subcarrier spacing are different, the network device sends the timing adjustment parameter to the terminal device as the TA, and the terminal device needs to determine the timing adjustment granularity corresponding to the timing adjustment parameter TA. The terminal device determines that the timing adjustment granularity is a timing adjustment granularity corresponding to a larger one of the first subcarrier interval and the second subcarrier interval. For example, the timing adjustment granularity T1 corresponding to the 15KHz subcarrier spacing is 0.25Ts, and the timing adjustment granularity corresponding to the 30KHz subcarrier spacing is T2 is 0.5Ts. At this time, the terminal device can determine the timing adjustment granularity to be 0.5Ts; the 15KHz subcarrier The timing adjustment granularity T1 corresponding to the interval is Ts, and the timing adjustment granularity corresponding to the 30KHz subcarrier spacing is T2 is 0.5Ts. At this time, the terminal device can determine that the timing adjustment granularity is Ts.

In another possible manner, the network device carries the indication information indicating the timing adjustment granularity in the message carrying the timing adjustment parameter, and the terminal device determines the corresponding timing adjustment granularity according to the indication information. For example, the network device may adopt a display indication manner, that is, the indication information directly indicates a timing adjustment granularity value or an index. For example, the indication information may be 1 bit information, the status 0 indicates an adjustment granularity value Ts, and the status 1 indicates an adjustment granularity value of 0.5. Ts, as shown in Table 1. The network device may also adopt an implicit indication manner, that is, the indication information may indicate an index or a sub-carrier spacing value or an index, so that the terminal device first determines a corresponding uplink or sub-carrier spacing according to the indication information, and then according to the uplink or the uplink or The subcarrier spacing determines the corresponding timing adjustment granularity value.

A different implementation manner is: when the terminal device accesses the LTE and the NR through the CA, the LTE cell is the primary cell, and the NR cell is the secondary cell. At this time, the terminal device receives the timing adjustment parameter in the primary cell. At this time, the terminal device may determine the timing adjustment granularity corresponding to the timing adjustment granularity of the primary cell. It should be noted that the implementation manner in this example is not limited to the network device that the terminal device accesses two different radio access technologies by means of the CA, and is also used to access the same radio access technology with the terminal device through the CA. Multiple network devices. Of course, the terminal device can also be accessed by using a DC method, which is not limited herein.

In the present application, the terminal device may perform measurement according to the downlink reference signal sent by the network device on the DL of the NR, obtain a measurement result, and then perform power control when performing uplink transmission according to the measurement result (including path loss), that is, the terminal device. The power of the signal transmitted on the NR UL can be adjusted according to the path loss value. However, the path loss is not applicable to the power control of the terminal equipment for uplink transmission on the SUL carrier of the NR. In order to enable the terminal device to perform the power control of the uplink transmission on the SUL carrier of the NR, the present application provides a method for the uplink transmission power control, as shown in the process of FIG.

Step 801: The network device sends a downlink reference signal to the terminal device.

In this application, the first uplink carrier may be a carrier of a primary cell, and the second uplink carrier may be a carrier of a secondary cell, and the first uplink carrier may be a carrier of an LTE, and the second uplink carrier may be The carrier of the NR is a cell of the LTE, and the cell of the NR is a secondary cell.

In this case, the network device may send a downlink reference signal to the terminal device on the first downlink carrier, where the first downlink carrier and the first uplink carrier may belong to the same cell, for example, the first downlink carrier and the first uplink carrier. The first downlink carrier is a downlink carrier of the LTE, and the first uplink carrier is an uplink carrier of the LTE. Optionally, the first downlink carrier and the first uplink carrier may also belong to different cells. For example, the first downlink carrier is a downlink carrier of LTE, and the first uplink carrier may be an uplink carrier of the NR.

Step 802: The terminal device receives the downlink reference signal from the network device, and determines, according to the downlink reference signal, the power of sending the uplink signal on the second uplink carrier.

The terminal device may receive the downlink reference signal from the first downlink carrier, where the first downlink carrier is a downlink carrier of the LTE, and the terminal device may determine, according to the downlink reference signal received on the downlink carrier of the LTE, the SUL carrier on the NR. The power of the uplink signal is sent to the network device.

Optionally, the application further provides another method for power control, such as the process of power control shown in FIG. 9 , where the process specifically includes:

In step 901, the network device determines a downlink reference signal.

In the present application, the downlink reference signal may be used by the terminal device to determine the power of transmitting the uplink signal to the network device on the first uplink carrier.

Step 902: The network device sends a downlink reference signal to the terminal device on the first downlink carrier.

The first downlink carrier and the first uplink carrier may belong to different cells. The first downlink carrier is a downlink carrier of the primary cell, and the first uplink carrier is an uplink carrier of the secondary cell. Or the first downlink carrier is a downlink carrier of the first radio access technology, and the first uplink carrier is an uplink carrier of the second radio access technology. The first radio access technology is LTE, and the second radio access technology is NR. The first uplink carrier and the second uplink carrier and the second downlink carrier belong to the same cell.

Optionally, the network device may further send the indication information to the terminal device, where the indication information may be used to indicate that the terminal device determines, according to the downlink reference signal, the power of sending the uplink signal to the network device on the first uplink carrier, or the indication information indicates the terminal device. The downlink reference signal is not used to determine the power of transmitting the uplink signal to the network device on the first uplink carrier. It should be noted that the indication information may be explicitly sent by the network device to the terminal device. For example, the indication information may include two states, where the first state indicates that the terminal device determines the first uplink carrier according to the downlink reference signal. The power of the uplink signal is sent to the network device, and the second state indicates that the terminal device does not use the downlink reference signal to determine the power of sending the uplink signal to the network device on the first uplink carrier. Certainly, the indication information may also be implicitly carried in other information. For example, the network device sends information indicating the first uplink carrier frequency to the terminal device, where the indication information may be carried in the information indicating the first uplink carrier frequency. Specifically, when the network device indicates to the terminal device that the frequency of the first uplink carrier is the first frequency, that is, the terminal device implicitly indicates that the terminal device determines to send an uplink signal to the network device on the first uplink carrier according to the downlink reference signal. The power of the network device indicates to the terminal device that the frequency of the second uplink carrier is the second frequency, that is, implicitly indicating that the terminal device does not use the downlink reference signal to determine that the uplink signal is sent to the network device on the first uplink carrier. power. The first frequency and/or the second frequency may comprise a plurality of frequency values.

Optionally, the network device may further send, to the terminal device, second indication information, where the second indication information is used by the terminal device to determine the downlink reference signal. The second indication information includes at least one of resource information, sequence information, and power information corresponding to the downlink reference signal.

Step 903: The terminal device receives the downlink reference signal from the network device on the first downlink carrier, and determines, according to the downlink reference signal, the power of sending the uplink signal to the network device on the first uplink carrier.

The terminal device receives the downlink reference signal on the first downlink carrier, where the first downlink carrier may be a downlink carrier of the LTE, and the terminal device determines, according to the downlink reference signal received by the downlink carrier of the LTE, on the first uplink carrier to the network. The power of the uplink signal sent by the device. The first uplink carrier and the second uplink carrier and the second downlink carrier belong to the same cell. It should be understood that, in a case that the terminal device can access LTE and NR at the same time, the terminal device may determine that the downlink reference information is downlink reference information of LTE. In the case that the terminal device can only access the NR, the terminal device can also receive the downlink reference information on the downlink carrier of the LTE. At this time, the terminal device can only determine that the downlink reference signal is received, and does not determine the downlink. The reference signal is LTE, that is, LTE is transparent to the terminal device, that is, the terminal device does not know the existence of LTE.

Optionally, the application further provides another method for power control, such as the process of power control shown in FIG. 10, where the process specifically includes:

In step 1001, the terminal device determines power information corresponding to the target uplink carrier.

For example, the target uplink carrier may be one of the first uplink carrier or the second uplink carrier. It should be understood that the terminal device determines the power information of the target uplink carrier, and the terminal device may determine the power information of another uplink carrier other than the target uplink carrier of the first uplink carrier and the second uplink carrier, or The power information of the other uplink carrier is not determined, and is not limited herein.

For another example, the target uplink carrier may include both the first uplink carrier and the second uplink carrier. It should be understood that the terminal device determines the power information of the first uplink carrier and the power information of the second uplink carrier.

For example, the power information may include a difference between the first power and the second power, where the first power may be a maximum transmit power of the terminal device, and the maximum transmit power may be a nominal/rated maximum transmit of the terminal device, where the target The nominal/rated maximum transmit power may also be referred to as a nominal maximum transmit power; the first power may also be the actual maximum transmit power of the terminal device, and the type of the maximum transmit power is not limited herein. The second power may be an estimated uplink signal transmission power of the terminal device, where the estimated uplink signal transmission power may be determined by the terminal device according to a predefined rule, or may be the terminal device according to other methods. Certainly, the method for determining the power of the terminal device is not limited herein. Specifically, the estimated uplink signal sending power may be the estimated uplink data/the shared channel transmit power, the estimated transmit power of the uplink control channel, or the estimated transmit power of the uplink measurement signal. It may also be the estimated transmit power of the uplink data/shared channel and the uplink control channel, and may of course be the estimated transmit power of other uplink signals.

For another example, the power information may further include a maximum transmit power of the terminal device. The maximum transmit power may be a nominal/rated maximum transmit of the terminal device, and the nominal/rated maximum transmit power may also be referred to as a nominal maximum transmit power; the first power may also be that the terminal device actually The maximum transmit power, the type of the maximum transmit power is not limited here.

Step 1002: The terminal device sends the power information and the indication information to the network device.

The indication information is used to indicate an uplink carrier corresponding to the power information.

For example, when the target uplink carrier is one of the first uplink carrier or the second uplink carrier, the target uplink carrier is an uplink carrier, and the power information only corresponds to the one target uplink carrier, and the indication information is used for Indicates the one target uplink carrier.

Optionally, the indication information may be explicit information. For example, the indication information includes 1 bit. When the bit is in the state 0, the indication information indicates that the target uplink carrier is the first uplink carrier, where the bit is in the bit. In the case of state 0, the indication information indicates that the target uplink carrier is the second uplink carrier. It should be understood that the indication information and the power information are carried in the same message and sent by the terminal device to the network device.

Optionally, the indication information may also be implicit information. For example, if the target uplink carrier is the first uplink carrier, the terminal device sends a message carrying the power information to the network device on the first uplink carrier. If the target uplink carrier is the second uplink carrier, the terminal device sends a message carrying the power information to the network device on the second uplink carrier. It should be understood that the indication information is implicitly carried in an uplink carrier of the message carrying the power information sent by the terminal device to the network device.

For another example, the target uplink carrier includes a first uplink carrier and a second uplink carrier, that is, the target uplink carrier includes two uplink carriers, and the power information includes first power information corresponding to the first uplink carrier and corresponding Second power information of the second uplink carrier. The first power information and the second power information may be carried in the same message and sent by the terminal device to the network device, or may be carried in different messages and sent by the terminal device to the network device.

Optionally, the indication information may be explicit information. For example, the indication information includes 2 bits, 1 bit of the 2 bits indicates the first power information, and another 1 bit indicates the second power information. Specifically, when the 1 bit is 0, the first power information is not included in the indication information, and when the 1 bit is 1, the first power information is included in the indication information. The number of bits of the indication information, and the correspondence between the bit state and the meaning are not limited to the above examples.

Optionally, the indication information may be implicit information. For example, the indication information is carried in a location or a sequence in which the first power information and the second power information are carried in a message carrying the power information, for example, The first power information is carried in the first domain in the message, and the second power information is carried in the second domain in the message, where the first domain corresponds to the first uplink carrier corresponding to the first power information, where The second domain corresponds to the second uplink carrier corresponding to the second power information. For another example, the first power information is carried in the first domain in the message, and the second power information is carried in the second domain in the message, where the number of the first domain in the message is smaller than the second domain in the For the number in the message, it should be understood that the first domain with a smaller number corresponds to the first uplink carrier corresponding to the first power information, and the first domain with a larger number corresponds to the second uplink carrier corresponding to the second power information. It should be noted that the above are examples of specific embodiments, and the method is not limited.

Step 1003: The network device receives power information and indication information from the terminal device, and determines, according to the indication information, a target uplink carrier corresponding to the power information.

The network device may receive power information and indication information from the terminal device, and the network device determines, according to the indication information, a target uplink carrier corresponding to the power information.

In the case that the target uplink carrier is one of the first uplink carrier or the second uplink carrier, the power information received by the network device is that the power information may be the power of the first uplink carrier or the second uplink carrier. The status of the indication information received by the network device may be explicit information. For example, the indication information includes 1 bit. When the bit is in the state 0, the indication information indicates that the target uplink carrier is the first uplink carrier, and the network device can determine the first power of the first uplink carrier according to the indication information. The first uplink carrier corresponding to the information. In the case that the bit is in the state 1, the indication information indicates that the target uplink carrier is the second uplink carrier, and the network device can determine, according to the indication information, the second uplink carrier corresponding to the second power information of the second uplink carrier.

For example, when the indication information is implicit information, when the target uplink carrier is the first uplink carrier, the network device receives the message carrying the power information sent by the terminal device on the first uplink carrier, so that the network device can determine The power information is power information of the first uplink carrier, and the first uplink carrier is determined to be the target uplink carrier. Correspondingly, the network device receives the message carrying the power information sent by the terminal device, where the network device determines that the received power information is the power information of the second uplink carrier, and determines the second uplink carrier. For the target uplink carrier.

The target uplink carrier may also include a first uplink carrier and a second uplink carrier, that is, the target uplink carrier includes two uplink carriers, and the power information includes first power information corresponding to the first uplink carrier and corresponding to the second uplink. Second power information of the carrier.

Optionally, when the indication information is the displayed information, for example, when the indication information is 2 bits, 1 bit of the 2 bits indicates the first power information, and another 1 bit indicates the second power information. When the 1 bit is 0, the first power information is not included in the indication information, and when the 1 bit is 1, the first power information is included in the indication information. For example, when the indication information received by the network device is 01, the received power information is the second power information, and the first power information is not included, so that the second uplink carrier corresponding to the second power information may be determined, that is, the The second uplink carrier is a target uplink carrier. For another example, when the indication information received by the network device is 10, the received power information is the first power information, and the second power information is not included, so that the first uplink carrier corresponding to the first power information may be determined, that is, The first uplink carrier is a target uplink carrier. For example, when the indication information received by the network device is 11, the received power information is the first power information and the second power information, so that the first uplink carrier and the second power information corresponding to the first power information may be determined. The corresponding second uplink carrier, that is, the first uplink carrier and the second uplink carrier are target uplink carriers.

Optionally, when the indication information is implicit information, for example, the indication information is carried in a location or a sequence in which the first power information and the second power information are carried in a message carrying the power information, for example, the A power information is carried in a first domain in the message, the second power information is carried in a second domain in the message, and the first domain corresponds to a first uplink carrier corresponding to the first power information, where the The second domain corresponds to the second uplink carrier corresponding to the second power information. For example, the network device receives the power information in the first domain of the received message, and the network device may determine the power information as the first power information of the first uplink carrier, thereby determining the first corresponding to the first power information. The uplink carrier, that is, the first uplink carrier is the target uplink carrier. For another example, the network device receives the power information in the second domain of the received message, and the network device may determine that the power information is the second power information of the second uplink carrier, thereby determining that the second power information corresponds to the first The second uplink carrier, that is, the second uplink carrier is the target uplink carrier.

For another example, the first power information is carried in the first domain in the message, and the second power information is carried in the second domain in the message, where the number of the first domain in the message is smaller than the second domain in the The number in the message. At this time, the network device receives the power information in the first domain with the small number in the message, and indicates that the power information is the first power information of the first uplink carrier, and the first uplink carrier corresponding to the first power information may be obtained, that is, The first uplink carrier is a target uplink carrier. It should be noted that the above are examples of specific embodiments, and the method is not limited.

Optionally, the process of the power control shown in FIG. 11 includes:

Step 1101: The terminal device reports a power headroom to the network device.

The power headroom is the difference between the maximum transmit power of the terminal device and the power determined by the terminal for transmitting the uplink signal, and the maximum transmit power may be a nominal maximum transmit power, or may be actual. Maximum transmit power. The power determined by the terminal device for transmitting the uplink signal may be an accurate value of the power determined by the terminal device, or may be a value predicted by the terminal device.

The power headroom may be the difference between the maximum transmit power of the terminal device and the transmit power of the data signal/data channel expected by the terminal device, and may also be the difference between the maximum transmit power of the terminal device and the transmit power of the measurement signal expected by the terminal device. It may also be the difference between the maximum transmit power of the terminal device and the transmit power of the control signal/control channel predicted by the terminal device, and may also be the maximum transmit power of the terminal device and the expected data signal/data channel and control signal/control channel of the terminal device. The difference in transmission power.

Considering that the terminal device can send the uplink signal on the first uplink carrier, the uplink signal can also be sent on the second uplink carrier, and the maximum transmit power of the terminal device on the first uplink carrier and the maximum transmission on the second uplink carrier. The power may be different, and the determined power for transmitting the uplink signal on the first uplink carrier and the determined power for transmitting the uplink signal on the second uplink carrier may also be different, so for the terminal device The value of the power headroom corresponding to the first uplink carrier and the value of the power headroom corresponding to the second uplink carrier may be different, so that the terminal device needs to separately report the power headroom of the first uplink carrier and the second uplink. The power headroom of the carrier.

The target uplink carrier may be one of the first uplink carrier or the second uplink carrier. The terminal device determines at least the power headroom of the target uplink carrier, and the terminal device may determine a power headroom of another uplink carrier other than the target uplink sub-aibu in the first uplink carrier and the second uplink carrier, or may not The power headroom of the other uplink carrier is determined, which is not limited herein.

The target uplink carrier may also include the first uplink carrier and the second uplink carrier, that is, the terminal device determines both the power headroom of the first uplink carrier and the power headroom of the second uplink carrier. .

Step 1102: The network device receives a power headroom from the terminal device, and determines a target uplink carrier corresponding to the power headroom.

When the terminal device reports the power headroom to the network device, the message carrying the power headroom needs to carry the indication information indicating the uplink carrier corresponding to the power headroom, and the indication information indicates the first uplink carrier or the second uplink. One of the carriers, so that the network device can determine, according to the indication information, whether the received uplink carrier corresponding to the power headroom is the first uplink carrier or the second uplink carrier. Otherwise, the network device cannot determine the uplink carrier corresponding to the power headroom.

The indication information may be explicit information. For example, the indication information includes 1 bit. When the bit is in the state 0, the indication information indicates that the target uplink carrier is the first uplink carrier, and the bit is state 0. In the case, the indication information indicates that the target uplink carrier is the second uplink carrier. It should be understood that the indication information and the power headroom may be carried in the same message and sent by the terminal device to the network device.

Optionally, the indication information may also be implicit information. For example, if the target uplink carrier is the first uplink carrier, the terminal device sends the power headroom to the network device on the first uplink carrier. The message is that, when the target uplink carrier is the second uplink carrier, the terminal device sends a message carrying the power headroom to the network device on the second uplink carrier. It should be understood that the indication information is implicitly carried in an uplink carrier of the message carrying the power headroom sent by the terminal device to the network device.

For another example, the target uplink carrier includes a first uplink carrier and a second uplink carrier, that is, the target uplink carrier includes two uplink carriers, and the power headroom includes a power headroom of the first uplink carrier and a power of the second uplink carrier. margin. The power headroom of the first uplink carrier and the power headroom of the second uplink carrier may be carried in the same message by the terminal device to the network device, or may be carried in different messages and sent by the terminal device to the network device. .

Optionally, the indication information may be explicit information. For example, the indication information includes 2 bits, where 1 bit of the 2 bits indicates a power headroom of the first uplink carrier, and another 1 bit indicates the second uplink carrier. Power margin. Specifically, when the 1 bit is 0, the power information of the first uplink carrier is not included in the indication information, and when the 1 bit is 1, the power information of the first uplink carrier is included in the indication information. The number of bits of the indication information, and the correspondence between the bit state and the meaning are not limited to the above examples.

Optionally, the indication information may be implicit information. For example, the power remaining amount of the first uplink carrier carried by the indication information and the power margin of the second uplink carrier are carried in a message carrying the power headroom. In the position or sequence, for example, the power headroom of the first uplink carrier is carried in the first domain in the message, and the power headroom of the first uplink carrier is carried in the second domain in the message, the A domain corresponds to a first uplink carrier corresponding to a power headroom of the first uplink carrier, and the second domain corresponds to a second uplink carrier corresponding to a power headroom of the second uplink carrier. For another example, the power headroom of the first uplink carrier is carried in the first domain in the message, and the power headroom of the second uplink carrier is carried in the second domain in the message, where the first domain is in the message. The number of the second domain is smaller than the number of the second domain in the message. It should be understood that the first domain with a smaller number corresponds to the first uplink carrier corresponding to the power headroom of the second uplink carrier, and the first domain with a larger number is associated with the first domain. The second uplink carrier corresponding to the power headroom of the second uplink carrier corresponds to. It should be noted that the above are examples of specific embodiments, and the method is not limited.

In a case where the target uplink carrier is one of the first uplink carrier or the second uplink carrier, the power headroom received by the network device may be a power headroom of the first uplink carrier or the second uplink carrier. The status of the indication information received by the network device may be explicit information. For example, the indication information includes 1 bit. When the bit is in the state 0, the indication information indicates that the target uplink carrier is the first uplink carrier, and the network device can determine the power headroom of the first uplink carrier according to the indication information. Corresponding first uplink carrier. When the bit is in the state 1, the indication information indicates that the target uplink carrier is the second uplink carrier, and the network device can determine, according to the indication information, the second uplink carrier corresponding to the power headroom of the second uplink carrier.

For example, when the indication information is implicit information, when the target uplink carrier is the first uplink carrier, the network device receives the message carrying the power headroom sent by the terminal device on the first uplink carrier, so that the network device can The power headroom is determined to be the power headroom of the first uplink carrier, and the first uplink carrier is determined to be the target uplink carrier. Correspondingly, the network device receives the message carrying the power headroom sent by the terminal device on the second uplink carrier, and the network device determines that the received power headroom is the power headroom of the second uplink carrier, and determines the first The second uplink carrier is the target uplink carrier.

The target uplink carrier may also include a first uplink carrier and a second uplink carrier, that is, the target uplink carrier includes two uplink carriers, and the power headroom includes a power headroom corresponding to the first uplink carrier and corresponding to the second uplink. The power headroom of the carrier.

Optionally, when the indication information is the displayed information, for example, when the indication information is 2 bits, 1 bit of the 2 bits indicates a power headroom of the first uplink carrier, and another 1 bit indicates the first uplink carrier. Power headroom. When the 1 bit is 0, the power information of the first uplink carrier is not included in the indication information. When the 1 bit is 1, the indication information includes the power headroom of the first uplink carrier. For example, when the indication information received by the network device is 01, it indicates that the received power headroom is the power headroom of the second uplink carrier, and does not include the power headroom of the first uplink carrier, so that the second uplink carrier can be determined. The second uplink carrier corresponding to the power headroom, that is, the second uplink carrier is the target uplink carrier. For example, when the indication information received by the network device is 10, it indicates that the received power headroom is the power headroom of the first uplink carrier, and does not include the power headroom of the second uplink carrier, so that the first uplink can be determined. The first uplink carrier corresponding to the power headroom of the carrier, that is, the first uplink carrier is the target uplink carrier. For example, when the indication information received by the network device is 11, the received power headroom is the power headroom of the first uplink carrier and the power headroom of the second uplink carrier, so that the power of the first uplink carrier can be determined. The second uplink carrier corresponding to the power headroom of the first uplink carrier and the second uplink carrier, that is, the first uplink carrier and the second uplink carrier are the target uplink carriers.

Optionally, when the indication information is implicit information, for example, the power remaining amount of the first uplink carrier carried by the indication information and the power margin of the second uplink carrier are carried in a message carrying the power headroom. In a position or sequence, for example, a power headroom of the first uplink carrier is carried in a first domain in the message, and a power headroom of the second uplink carrier is carried in a second domain in the message, the first The domain corresponds to the first uplink carrier corresponding to the power headroom of the first uplink carrier, and the second domain corresponds to the second uplink carrier corresponding to the power headroom of the second uplink carrier. For example, the network device receives the power headroom in the first domain of the received message, and the network device may determine that the power headroom is the power headroom of the first uplink carrier, thereby determining the power balance of the first uplink carrier. The first uplink carrier corresponding to the quantity, that is, the first uplink carrier is the target uplink carrier. For another example, the network device receives the power headroom in the second domain of the received message, and the network device may determine the power headroom as the power headroom of the second uplink carrier, thereby determining the power of the second uplink carrier. The second uplink carrier corresponding to the remaining amount, that is, the second uplink carrier is the target uplink carrier.

For another example, the power headroom of the first uplink carrier is carried in the first domain in the message, and the power headroom of the second uplink carrier is carried in the second domain in the message, where the first domain is in the message. The number is less than the number of the second field in the message. At this time, the network device receives the power headroom in the first field with the small number in the message, indicating that the power headroom is the power headroom of the first uplink carrier, and the power headroom corresponding to the power headroom of the first uplink carrier may be obtained. An uplink carrier, that is, the first uplink carrier is a target uplink carrier. It should be noted that the above are examples of specific embodiments, and the method is not limited.

Optionally, the application further provides another process of power control, such as the process shown in FIG. 12, where the process specifically includes:

In step 1201, the network device determines the power control information and the indication information, where the power control information is used by the first terminal device to determine the power of the uplink signal sent to the network device on the target uplink carrier, where the indication information is used to indicate that the power control information corresponds to The target uplink carrier.

Optionally, the target uplink carrier includes one of the first uplink carrier or the second uplink carrier, and the power control information is used by the first terminal device to determine one of the first uplink carrier or the second uplink carrier. The power of the uplink signal is sent to the network device on the uplink carrier, and the indication information is used to indicate one of the first uplink carrier or the second uplink carrier corresponding to the power control information.

Optionally, the target uplink carrier includes a first uplink carrier and a second uplink carrier, where the power control information includes a power for instructing the first terminal device to determine to send an uplink signal to the network device on the first uplink carrier. The first power control information, and the second power control information for instructing the first terminal device to determine the power for transmitting the uplink signal to the network device on the second uplink carrier, the indication information includes First indication information of the first uplink carrier corresponding to the first power control information, and second indication information of the second uplink carrier corresponding to the second power control information.

Step 1202: The network device sends the power control information and the indication information to the first terminal device.

Optionally, in a case that the target uplink carrier includes one of the first uplink carrier or the second uplink carrier, the network device may carry the power control information and the indication information in the same downlink control information (downlink control information) , DCI).

For example, the power control information is included in a first field in the DCI, the indication information being included in a second field in the DCI. Exemplarily, the first field may be 2 bits or 1 bit, and the second field may be 1 bit. Specifically, the second field may be referred to as a carrier indication field, which is called an SC_UL_Index, and may be other names, which are not limited herein. When the second field is 0, the TDD carrier (NR UL) is indicated; when the second field is 1, the SUL carrier is indicated. It should be noted that the correspondence between the value of the second field and the indicated carrier may be It is pre-defined in the protocol, that is, when the carrier indication field is 0 in the protocol, the TDD carrier (NR UL) is indicated, and when the carrier indication field is 1, the SUL is indicated. Of course, the correspondence can also be configured. Furthermore, the implementation of the second field is not limited to the present application, but is also applicable to other carrier situations that need to indicate one of the at least two carriers, especially for an NR system with SUL, ie, the NR is configured with a TDD carrier and A SUL scene. For example, the DCI used for uplink scheduling may also include the second field. The DCI used for uplink scheduling may be a DCI for back-off, or a DCI for a terminal, or other types of DCI.

For another example, the power control information and the indication information are both included in a third field in the DCI. It should be understood that the power control information and the indication information are included in the third field by means of joint coding, and the third The field can be 3 bits or 2 bits. The DCI may also contain a plurality of 3-bit third fields, such as field 1, field 2, field 3, and the like. Each of the fields includes power control information and indication information corresponding to one terminal device.

Further, in addition to the power control information and the indication information corresponding to the first terminal device, the DCI may further include power control information and/or indication information corresponding to the second terminal device, where the second terminal device may be multiple. Second terminal devices. For example, the DCI may include power control information and indication information of any second terminal device. It should be understood that the DCI may include only the first type of field, that is, each field includes power control information and indication information. For another example, the DCI may include two fields, a first field is a field containing power control information and indication information, and a second field is a field containing only power control information. In this case, the bit lengths of the first field and the second field may be the same or different. Illustratively, the first field contains 3 bits and the second field also contains 3 bits, but only 2 bits in the second field are used for power control information, and the other 1 bit is reserved or padded. Alternatively, the first field contains 3 bits, the 3 bits contain power control information and indication information, and the second field contains 2 bits, and the 2 bits only contain power control information.

For another example, the DCI includes a plurality of power control information, where each power control information corresponds to a terminal device, and the DCI further includes an indication information indicating a target uplink carrier corresponding to the multiple power control information. At this time, for a plurality of terminal devices that receive the DCI, the target uplink carriers determined by the terminal devices according to the one indication information are the same uplink carrier.

For example, the indication information may be implicitly carried in the DCI. For example, the network device may use the two different identifiers to scramble the DCI, where the first identifier of the two different identifiers corresponds to the first identifier. The uplink carrier, the second identifier of the two different identifiers corresponds to the second uplink carrier, so that the terminal device can determine the target carrier according to the scrambling identifier of the DCI. Specifically, the identifier may be a radio network tempory identity (RNTI), or may be other identifiers, which is not limited herein.

Optionally, in a case that the target uplink carrier includes one of the first uplink carrier or the second uplink carrier, the network device may carry the power control information in the DCI and send the information to the terminal device, where the indication information is The bearer is sent to the terminal device in other signaling. The other signaling may be higher layer signaling, such as radio resource control RRC layer signaling.

For example, the network device carries the power control information on the first and second bits in the DCI, and the network device sends the indication information to the terminal, in addition to sending the DCI to the terminal device. And the indication information is used to indicate a bit position of the power control information corresponding to the target carrier in the DCI, and in this example, the indication information indicates the first and second bits in the DCI. Specifically, the indication information may directly indicate the first bit and the second bit, or the indication information may indicate the first bit, and both the network device and the terminal device know in advance that the power control information is carried in the continuous DCI. On two bits.

For example, the first bit of the DCI corresponds to the power control information of the first uplink carrier, and the second bit of the DCI corresponds to the power control information of the second uplink carrier. When the indication information indicates the first bit of the DCI, the network device carries the power control information of the first uplink carrier on the first bit of the DCI, and the terminal device can determine, according to the indication information, the power control information carried on the first bit. The target uplink carrier is the first uplink carrier.

Optionally, if the target uplink carrier includes the first uplink carrier and the second uplink carrier, the network device carries the first power control information and the second power control information in the same DCI and sends the information to the terminal device. The network device carries the first indication information and the second indication information in other signaling and sends the information to the terminal device. The other signaling may be higher layer signaling, such as radio resource control RRC layer signaling.

For example, the network device carries the first power control information on the first and second bits in the DCI, and carries the second power control information on the third and fourth bits in the DCI, then the network The device sends the first indication information and the second indication information to the terminal device, and the first indication information and the second indication information respectively indicate the terminal device. a first power control information corresponding to the first uplink carrier and a bit position of the second power control information corresponding to the second uplink carrier in the DCI, in this example, the first indication information indicates in the DCI The first and second bits, specifically, the indication information may directly indicate the first and second bits, or the indication information may indicate the first bit, and both the network device and the terminal device know in advance that the power control information is to be carried. On consecutive two bits in the DCI. The second indication information indicates the third and fourth bits in the DCI, and the specific indication manner is similar to the first indication information, and details are not described herein again. It should be noted that the bit position of the first power control information and/or the second power control information in the DCI is not limited to this example, and other values may be used.

For example, when the indication information indicates the first bit and the second bit, the power control information carried by the network device on the DCI is the first power control information of the first uplink carrier, and the terminal device may determine the first power control information according to the indication information. The corresponding target uplink carrier is the first uplink carrier. For example, when the indication information indicates the third bit and the fourth bit, the power control information carried by the network device on the DCI is the second power control information of the second uplink carrier, and the terminal device may determine the second power control according to the indication information. The target uplink carrier corresponding to the information is the second uplink carrier.

In the foregoing embodiment, the downlink control information (DCI) sent by the network device to the first terminal device may be a DCI sent by multiple terminal devices, that is, a group common DCI, or may be dedicated. The DCI of the first terminal device.

It should be noted that the fields herein are only used to describe one or more bits in the DCI, and do not limit the names of certain bits in the DCI. For example, the DCI contains a total of 30 bits, and the 30 bits can be understood as a field. Of course, one or more of the 30 bits can be understood as a field, which is not limited herein. It should also be noted that the DCI may also include some reserved bits, or padding bits.

Step 1203: The terminal device receives power control information and indication information from the network device. The terminal device may determine, according to the indication information, a target uplink carrier corresponding to the power control information.

The indication information is used to instruct the terminal device to determine the power parameter. For example, the indication information indicates that the terminal device adjusts the power parameter. For example, the indication information indicates -1 dB, where dB indicates a decibel value, and the terminal device determines that the value of the power parameter is lower than the previous value. 1dB. For another example, the indication information indicates that the terminal device determines the power parameter. For example, the indication information indicates 4 dB, and the terminal device determines that the value of the power parameter is 4 dB.

Optionally, when the target uplink carrier includes one of the first uplink carrier or the second uplink carrier, the terminal device receives the power control information and the indication information in the DCI. The new indicator may be implicitly carried in the DCI. For example, the DCI may be scrambled by using two different identifiers, where the first identifier corresponds to the first uplink carrier, and the second identifier corresponds to the second uplink carrier. For example, when the terminal device obtains the first identifier in the DCI, the terminal device may determine that the received power control information is the power control information of the first uplink carrier, so that the power control information of the received first uplink carrier may be determined to be corresponding. The first uplink carrier, that is, the first uplink carrier is the target uplink carrier. For example, when receiving the second identifier in the DCI, the terminal device may determine that the received power control information is the power control information of the second uplink carrier, so that the received power control information of the second uplink carrier may be determined. Corresponding second uplink carrier, that is, the second uplink carrier is a target uplink carrier.

Optionally, the indication information may also be carried in other signaling and sent to the terminal device, where the other signaling may be high layer signaling, such as radio resource control RRC layer signaling. The indication information may indicate a bit position of the power control information of the terminal device corresponding to the target carrier in the DCI. At this time, when the indication information received by the terminal device in the high layer signaling is the first bit in the DCI, the terminal device may determine that the power control information carried in the DCI is the power control information of the first uplink carrier, so that the terminal device may determine The first uplink carrier corresponding to the received power control information of the first uplink carrier, that is, the first uplink carrier is the target uplink carrier. For example, when the indication information received by the terminal device in the high layer signaling is the second bit in the DCI, the terminal device may determine that the power control information carried in the DCI is the power control information of the second uplink carrier, so that the terminal device may determine The second uplink carrier corresponding to the received power control information of the second uplink carrier, that is, the second uplink carrier is the target uplink carrier.

Optionally, the target uplink carrier may also include the first uplink carrier and the second uplink carrier. The first power control information of the first uplink carrier and the second power control information of the second uplink carrier may be carried in the same DCI. For example, the first power control information is carried on the first and second bits in the DCI, and the second power control information is carried on the third and fourth bits in the DCI. The indication information may be carried on the high layer signaling, where the indication information includes first indication information corresponding to the first uplink carrier and second indication information corresponding to the second uplink carrier. The first indication information and the second indication information respectively indicate a first power control information of the first uplink carrier and a bit position of the second power control information corresponding to the second uplink carrier in the DCI. .

For example, when the indication information received by the terminal device is the first bit, the terminal device may determine that the power control information carried in the DCI is the first power control information, so that the first corresponding to the received first power control information may be determined. An uplink carrier, that is, the first uplink carrier is a target uplink carrier. For example, when the indication information received by the terminal device in the high layer signaling is the second bit in the DCI, the terminal device may determine that the power control information carried in the DCI is the first power control information, so that the receiving may be determined. The first uplink carrier corresponding to the first power control information, that is, the first uplink carrier is the target uplink carrier. For example, when the indication information received by the terminal device in the high layer signaling is the third bit in the DCI, the terminal device may determine that the power control information carried in the DCI is the second power control information, so that the receiving may be determined. The second uplink carrier corresponding to the second power control information, that is, the second uplink carrier is the target uplink carrier.

It should be noted that the bit position of the first power control information and/or the second power control information in the DCI is not limited to this example, and other values may be used.

Based on the same inventive concept, as shown in FIG. 13 , a schematic diagram of a device provided by the present application, which may be a terminal device, may perform the method performed by the terminal device in any of the foregoing embodiments.

The terminal device 1300 includes at least one processor 1301, a transceiver 1302, and optionally a memory 1303. The processor 1301, the transceiver 1302, and the memory 1303 are connected to each other.

The processor 1301 can be a general purpose central processing unit, a microprocessor, an application specific integrated circuit, or one or more integrated circuits for controlling program execution of embodiments of the present application.

The transceiver 1302 is configured to communicate with other devices or communication networks, and the transceiver includes a radio frequency circuit.

The memory 1303 can be a read only memory or other type of static storage device random access memory that can store static information and instructions or other types of dynamic storage devices that can store information and instructions, or can be an electrically erasable programmable read only memory. , read-only disc or other disc storage, optical disc storage (including compact discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.), disk storage media or other magnetic storage devices, or capable of carrying or storing instructions or data The desired program code in the form of a structure and any other medium that can be accessed by a computer, but is not limited thereto. The memory 1303 may be independent and connected to the processor 1301. The memory 1303 can also be integrated with the processor. The memory 1303 is configured to store application code that executes an embodiment of the present application, and is controlled by the processor 1301 for execution. The processor 1301 is configured to execute application code stored in the memory 1303.

In a specific implementation, as an embodiment, the processor 1301 may include one or more CPUs, such as CPU0 and CPU1 in FIG.

In a specific implementation, as an embodiment, the terminal device 1300 may include multiple processors, such as the processor 1301 and the processor 1308 in FIG. Each of these processors may be a single-CPU processor or a multi-core processor, where the processor may refer to one or more devices, circuits, and/or A processing core for processing data, such as computer program instructions.

It should be understood that the terminal device may be used to implement the steps performed by the terminal device in the method for transmitting and receiving information provided by the present application. For related features, reference may be made to the above, and details are not described herein again.

The application may divide the function module into the terminal device according to the above method example. For example, each function module may be divided according to each function, or two or more functions may be integrated into one processing module. The above integrated modules can be implemented in the form of hardware or in the form of software functional modules. It should be noted that the division of modules in the present application is schematic, and is only a logical function division, and may be further divided in actual implementation. For example, in the case where the respective functional modules are divided by respective functions, FIG. 14 shows a schematic diagram of a device which may be the terminal device involved in the above embodiment, the device including the processing unit 1401 and the communication unit 1402.

The communication unit 1402 is configured to receive indication information from the network device, where the indication information indicates a timing adjustment parameter, where the timing adjustment parameter is used to determine a transmission timing on the first uplink carrier and on the second uplink carrier. The first uplink carrier is an uplink carrier of the first radio access technology, and the second uplink carrier is an uplink carrier of the second radio access technology;

The processing unit 1401 is configured to determine the timing adjustment parameter according to the indication information received by the communication unit 1402.

Optionally, the second uplink carrier includes at least two second uplink carriers, and the at least two second uplink carriers belong to the same cell.

The timing adjustment parameter is used by the processing unit 1401 to determine a transmission timing on the first uplink carrier and on the at least two second uplink carriers.

Optionally, the at least two second uplink carriers include at least one TDD carrier and at least one SUL carrier.

Optionally, the first uplink carrier is a carrier of a primary cell, and the second uplink carrier is a carrier of a secondary cell;

When the communication unit 1402 receives the indication information from the network device, specifically, the communication unit 1402 is configured to:

Receiving the indication information from the network device on a first downlink carrier, where the first downlink carrier and the first uplink carrier belong to the same cell, or the first downlink carrier and the first An uplink carrier belongs to the same radio access technology.

Optionally, the first radio access technology is LTE, and the second radio access technology is NR.

Optionally, the first uplink carrier is an uplink carrier of a primary cell, and the second uplink carrier is an uplink carrier of a secondary cell;

The processing unit 1401 is further configured to:

Controlling the communication unit 1402 to receive a downlink reference signal from the network device on the first downlink carrier, where the first downlink carrier and the first uplink carrier belong to the same cell;

Determining, according to the downlink reference signal received by the communication unit 1402, the power of transmitting the uplink signal to the network device on the second uplink carrier.

Optionally, the processing unit 1401 is further configured to:

Controlling the communication unit 1402 to receive a downlink reference signal from the network device on a first downlink carrier, where the first downlink carrier is a downlink carrier of a first radio access technology, and the first downlink carrier And the first uplink carrier belongs to the same cell;

Optionally, the processing unit 1401 is further configured to:

Controlling the communication unit 1402 to receive a downlink reference signal from the network device on the first downlink carrier, where the first downlink carrier is a downlink carrier of the first radio access technology, the first downlink The row carrier and the first uplink carrier belong to different cells;

It should be understood that the terminal device may be used to implement the steps performed by the terminal device in the information sending and receiving method of the present application. For related features, reference may be made to the above, and details are not described herein again.

Based on the same inventive concept, as shown in FIG. 15 , a schematic diagram of a device provided by an embodiment of the present application, which may be a network device, may perform the method performed by the network device in any of the foregoing embodiments.

The network device 1500 includes at least one processor 1501, a transceiver 1502, and optionally a memory 1503. The processor 1501, the transceiver 1502, and the memory 1503 are connected to each other.

The processor 1501 can be a general purpose central processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more integrated circuits for controlling the execution of the program of the embodiments of the present application. .

The transceiver 1502 is configured to communicate with other devices or communication networks, and the transceiver includes a radio frequency circuit.

The memory 1503 may be a read-only memory (ROM) or other type of static storage device random access memory (RAM) that can store static information and instructions or other types of information and instructions that can store information. The dynamic storage device may also be an electrically erasable programmabler-only memory (EEPROM), a compact disc read-only memory (CD-ROM) or other optical disc storage, or a disc storage (including Compressed optical discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or can be used to carry or store desired program code in the form of instructions or data structures and can be accessed by a computer Any other medium, but not limited to this. The memory 1503 may exist independently and be coupled to the processor 1501. The memory 1503 can also be integrated with the processor. The memory 1503 is configured to store application code that executes an embodiment of the present application, and is controlled to be executed by the processor 1501. The processor 1501 is configured to execute application code stored in the memory 1503.

In a specific implementation, as an embodiment, the processor 1501 may include one or more CPUs, such as CPU0 and CPU1 in FIG.

In a particular implementation, as an embodiment, network device 1500 can include multiple processors, such as processor 1501 and processor 1508 in FIG. Each of these processors may be a single-CPU processor or a multi-core processor, where the processor may refer to one or more devices, circuits, and/or A processing core for processing data, such as computer program instructions.

It should be understood that the network device may be used to implement the steps performed by the network device in the information sending and receiving method of the present application. For related features, reference may be made to the above, and details are not described herein again.

The application may divide the functional modules of the network device according to the foregoing method example. For example, each functional module may be divided according to each function, or two or more functions may be integrated into one processing module. The above integrated modules can be implemented in the form of hardware or in the form of software functional modules. It should be noted that the division of modules in the present application is schematic, and is only a logical function division, and may be further divided in actual implementation. For example, in the case of dividing each functional module by corresponding functions, FIG. 16 shows a schematic diagram of a device, which may be the network device involved in the above embodiment, and the device includes a processing unit 1601 and a communication unit 1602.

The processing unit 1601 is configured to determine indication information, where the indication information indicates a timing adjustment parameter, where the timing adjustment parameter is used by the terminal device to determine a transmission timing on the first uplink carrier and on the second uplink carrier, The first uplink carrier is an uplink carrier of the first radio access technology, and the second uplink carrier is an uplink carrier of the second radio access technology;

The communication unit 1602 is configured to send the indication information determined by the processing unit 1601 to the terminal device.

When the communication unit 1602 sends the indication information to the terminal device, specifically, the communication unit 1602 is configured to:

Sending the indication information to the terminal device on the first downlink carrier, where the first downlink carrier and the first uplink carrier belong to the same cell, or the first downlink carrier and the first An uplink carrier belongs to the same radio access technology.

The processing unit 1601 is further configured to:

The communication unit 1602 is configured to send a downlink reference signal to the terminal device on the first downlink carrier, where the first downlink carrier and the first uplink carrier belong to the same cell.

Optionally, the processing unit 1601 is further configured to:

The communication unit 1602 is configured to send a downlink reference signal to the terminal device on the first downlink carrier, where the first downlink carrier is a downlink carrier of the first radio access technology, and the first downlink carrier is used. And the first uplink carrier belongs to the same cell.

Optionally, the processing unit 1601 is further configured to:

Controlling the communication unit 1602 to send a downlink reference signal to the network device on the first downlink carrier, where the first downlink carrier is a downlink carrier of the first radio access technology, and the first downlink The row carrier and the first uplink carrier belong to different cells.

It should be understood that the network device may be used to implement the steps performed by the network device in the method for sending and receiving information in the embodiment of the present application. For related features, reference may be made to the above, and details are not described herein again.

The embodiment of the present application further provides a computer storage medium for storing computer software instructions for the network device or the terminal device, which includes program code for executing the foregoing method embodiment.

Those skilled in the art will appreciate that the application can be provided as a method, system, or computer program product. Thus, the present application can take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment in combination of software and hardware. Moreover, the application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) including computer usable program code.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to the present application. It will be understood that each flow and/or block of the flowchart illustrations and/or FIG. These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine for the execution of instructions for execution by a processor of a computer or other programmable data processing device. Means for implementing the functions specified in one or more of the flow or in a block or blocks of the flow chart.

The computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device. The apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.

These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device. The instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

It will be apparent to those skilled in the art that various modifications and changes can be made in the present application without departing from the spirit and scope of the application. Thus, it is intended that the present invention cover the modifications and variations of the present invention.

Claims

A method for receiving information, characterized in that the method comprises:

The terminal device receives the indication information sent by the network device, where the indication information includes a timing adjustment parameter, where the timing adjustment parameter is used by the terminal device to determine a transmission timing on the first uplink carrier and on the second uplink carrier, where The first uplink carrier and the second uplink carrier are uplink carriers in the same cell;

The terminal device determines the timing adjustment parameter according to the indication information.
The method of claim 1 wherein

If the first subcarrier spacing for the first uplink carrier is different from the second subcarrier spacing for the second uplink carrier, the timing adjustment granularity corresponding to the timing adjustment parameter is the first subcarrier spacing and the first The timing adjustment granularity corresponding to the larger of the two subcarrier intervals, wherein the first uplink carrier is a time division duplex TDD carrier.
The method according to claim 2, wherein the second uplink subcarrier is an uplink supplemental SUL carrier.
The method according to any one of claims 1 to 3, wherein the first timing offset value is equal to the second timing offset value; wherein

The first offset value is that the terminal device sends a random access signal to the network device at a first timing on the first uplink carrier, and receives a downlink from the network device on a first downlink carrier. The offset value of the third timing of the signal;

The second offset value is a second timing at which the terminal device sends a random access signal to the network device on the second uplink carrier, and is from the network device on the first downlink carrier. Receiving an offset value of the third timing of the downlink signal.
The method according to claim 4, wherein the first downlink carrier and the first uplink carrier are associated time division duplex TDD carriers, and the second uplink carrier is an uplink supplemental SUL carrier.
A method for transmitting information, characterized in that the method comprises:

The network device determines indication information, where the indication information includes a timing adjustment parameter, where the timing adjustment parameter is used by the terminal device to determine a transmission timing on the first uplink carrier and on the second uplink carrier, where the first uplink carrier And the second uplink carrier is an uplink carrier in the same cell;

The network device sends the indication information to the terminal device.
The method of claim 6 wherein:

If the first subcarrier spacing for the first uplink carrier is different from the second subcarrier spacing for the second uplink carrier, the timing adjustment granularity corresponding to the timing adjustment parameter is the first subcarrier spacing and the first The timing adjustment granularity corresponding to the larger of the two subcarrier intervals, wherein the first uplink carrier is a time division duplex TDD carrier.
The method according to claim 7, wherein the second uplink subcarrier is an uplink supplemental SUL carrier.
The method according to any one of claims 6-8, wherein the first timing offset value is equal to the second timing offset value; wherein

The first timing offset value is a first timing at which the terminal device sends a random access signal to the network device on the first uplink carrier, and is received from the network device on a first downlink carrier. An offset value of the third timing of the downlink signal, where the second timing offset value is a second timing at which the terminal device sends a random access signal to the network device on the second uplink carrier, The offset value of the third timing of receiving the downlink signal from the network device on the first downlink carrier.
The method according to claim 9, wherein the first downlink carrier and the first uplink carrier are associated time division duplex TDD carriers, and the second uplink carrier is an uplink supplemental SUL carrier.
An apparatus for receiving information, comprising:

a communication unit, configured to receive indication information sent by the network device, where the indication information includes a timing adjustment parameter, where the timing adjustment parameter is used by the terminal device to determine a transmission timing on the first uplink carrier and on the second uplink carrier. The first uplink carrier and the second uplink carrier are uplink carriers in the same cell; and

And a processing unit, configured to determine the timing adjustment parameter according to the indication information.
The device of claim 11 wherein:

If the first subcarrier spacing for the first uplink carrier is different from the second subcarrier spacing for the second uplink carrier, the timing adjustment granularity corresponding to the timing adjustment parameter is the first subcarrier spacing and the first The timing adjustment granularity corresponding to the larger of the two subcarrier intervals, wherein the first uplink carrier is a time division duplex TDD carrier.
The apparatus according to claim 12, wherein the second uplink subcarrier is an uplink supplemental SUL carrier.
The apparatus according to any one of claims 11 to 13, wherein the first timing offset value is equal to the second timing offset value, wherein

The first timing offset value is a first timing at which the terminal device sends a random access signal to the network device on the first uplink carrier, and is received from the network device on a first downlink carrier. An offset value of the third timing of the downlink signal, where the second timing offset value is a second timing at which the terminal device sends a random access signal to the network device on the second uplink carrier, The offset value of the third timing of receiving the downlink signal from the network device on the first downlink carrier.
The apparatus according to claim 14, wherein the first downlink carrier and the first uplink carrier are associated time division duplex TDD carriers, and the second uplink carrier is an uplink supplemental SUL carrier. .
A device for transmitting information, comprising:

a processing unit, configured to determine indication information, where the indication information includes a timing adjustment parameter, where the timing adjustment parameter is used by the terminal device to determine a transmission timing on the first uplink carrier and on the second uplink carrier, where the An uplink carrier and the second uplink carrier are uplink carriers in the same cell;

And a communication unit, configured to send the indication information to the terminal device.
The device of claim 16 wherein:

If the first subcarrier spacing for the first uplink carrier is different from the second subcarrier spacing for the second uplink carrier, the timing adjustment granularity corresponding to the timing adjustment parameter is the first subcarrier spacing and the first The timing adjustment granularity corresponding to the larger of the two subcarrier intervals, wherein the first uplink carrier is a time division duplex TDD carrier.
The apparatus according to claim 17, wherein the second uplink subcarrier is an uplink supplemental SUL carrier.
The apparatus according to any one of claims 16 to 18, wherein the first timing offset value is equal to the second timing offset value, wherein

The first timing offset value is a first timing at which the terminal device sends a random access signal to the network device on the first uplink carrier, and is received from the network device on a first downlink carrier. An offset value of the third timing of the downlink signal, where the second timing offset value is a second timing at which the terminal device sends a random access signal to the network device on the second uplink carrier, The offset value of the third timing of receiving the downlink signal from the network device on the first downlink carrier.
The apparatus according to claim 19, wherein the first downlink carrier and the first uplink carrier are associated time division duplex TDD carriers, and the second uplink carrier is an uplink supplemental SUL carrier.
A method for receiving information, characterized in that the method comprises:

The terminal device receives the indication information from the network device, where the indication information indicates a timing adjustment parameter, where the timing adjustment parameter is used by the terminal device to determine a transmission timing on the first uplink carrier and on the second uplink carrier, where The first uplink carrier is an uplink carrier of the first radio access technology, and the second uplink carrier is an uplink carrier of the second radio access technology;

The terminal device determines the timing adjustment parameter according to the indication information.
The method according to claim 21, wherein the second uplink carrier comprises at least two second uplink carriers, and the at least two second uplink carriers belong to the same cell;

The timing adjustment parameter is used by the terminal device to determine a transmission timing on the first uplink carrier and on the at least two second uplink carriers.
The method of claim 22, wherein the at least two second uplink carriers comprise at least one time division duplex TDD carrier and at least one uplink supplemental SUL carrier.
The method according to any one of claims 21 to 23, wherein the first uplink carrier is a carrier of a primary cell, and the second uplink carrier is a carrier of a secondary cell;

The receiving, by the terminal device, the indication information from the network device, including:

The terminal device receives the indication information from the network device on a first downlink carrier, where the first downlink carrier and the first uplink carrier belong to the same cell, or the first downlink carrier And the first uplink carrier belongs to the same radio access technology.
The method according to any one of claims 21 to 24, wherein the first radio access technology is Long Term Evolution (LTE), and the second radio access technology is a new air interface NR.
The method according to any one of claims 21 to 25, wherein the first uplink carrier is an uplink carrier of a primary cell, and the second uplink carrier is an uplink carrier of a secondary cell, the method further comprising:

The terminal device receives a downlink reference signal from the network device on the first downlink carrier, where the first downlink carrier and the first uplink carrier belong to the same cell;

The terminal device determines, according to the downlink reference signal, a power for transmitting an uplink signal to the network device on the second uplink carrier.
The method of claim 26, wherein the method further comprises:

The terminal device receives a downlink reference signal from the network device on the first downlink carrier, where the first downlink carrier is a downlink carrier of the first radio access technology, and the first downlink carrier And the first uplink carrier belongs to the same cell;

The terminal device determines, according to the downlink reference signal, a power for transmitting an uplink signal to the network device on the second uplink carrier.
The method according to any one of claims 21 to 25, wherein the method comprises:

The terminal device receives a downlink reference signal from the network device on the first downlink carrier, where the first downlink carrier is a downlink carrier of the first radio access technology, and the first downlink carrier And the first uplink carrier belongs to a different cell;

Determining, by the terminal device, the power of sending an uplink signal to the network device on the second uplink carrier according to the downlink reference signal.
A method for transmitting information, characterized in that the method comprises:

The network device determines indication information, where the indication information indicates a timing adjustment parameter, where the timing adjustment parameter is used by the terminal device to determine a transmission timing on the first uplink carrier and on the second uplink carrier, the first uplink carrier An uplink carrier of the first radio access technology, where the second uplink carrier is an uplink carrier of the second radio access technology;

The network device sends the indication information to the terminal device.
The method according to claim 29, wherein the second uplink carrier comprises at least two second uplink carriers, and the at least two second uplink carriers belong to the same cell;

The timing adjustment parameter is used by the terminal device to determine a transmission timing on the first uplink carrier and on the at least two second uplink carriers.
The method of claim 30, wherein the at least two second uplink carriers comprise at least one time division duplex TDD carrier and at least one uplink supplemental SUL carrier.
The method according to any one of claims 29 to 31, wherein the first uplink carrier is a carrier of a primary cell, and the second uplink carrier is a carrier of a secondary cell;

The sending, by the network device, the indication information to the terminal device, including:

The network device sends the indication information to the terminal device on the first downlink carrier, where the first downlink carrier and the first uplink carrier belong to the same cell, or the first downlink carrier And the first uplink carrier belongs to the same radio access technology.
The method according to any one of claims 29 to 32, wherein the first radio access technology is Long Term Evolution (LTE), and the second radio access technology is a new air interface NR.
The method according to any one of claims 29 to 33, wherein the first uplink carrier is an uplink carrier of a primary cell, and the second uplink carrier is an uplink carrier of a secondary cell, the method further comprising:

The network device sends a downlink reference signal to the terminal device on the first downlink carrier, where the first downlink carrier and the first uplink carrier belong to the same cell.
The method of claim 34, wherein the method further comprises:

The network device sends a downlink reference signal to the terminal device on the first downlink carrier, where the first downlink carrier is a downlink carrier of the first radio access technology, and the first downlink carrier and the downlink carrier The first uplink carrier belongs to the same cell.
The method according to any one of claims 29 to 33, wherein the method further comprises:

The network device sends a downlink reference signal to the network device on the first downlink carrier, where the first downlink carrier is a downlink carrier of the first radio access technology, and the first downlink carrier And the first uplink carrier belongs to a different cell.
An apparatus for receiving information, comprising: a communication unit and a processing unit;

The communication unit is configured to receive indication information from the network device, where the indication information indicates a timing adjustment parameter, where the timing adjustment parameter is used to determine a transmission timing on the first uplink carrier and on the second uplink carrier, The first uplink carrier is an uplink carrier of the first radio access technology, and the second uplink carrier is an uplink carrier of the second radio access technology;

And a processing unit, configured to determine the timing adjustment parameter according to the indication information received by the communication unit.
The apparatus according to claim 37, wherein the second uplink carrier comprises at least two second uplink carriers, and the at least two second uplink carriers belong to the same cell;

The timing adjustment parameter is used by the processing unit to determine a transmission timing on the first uplink carrier and on the at least two second uplink carriers.
The apparatus of claim 38, wherein the at least two second uplink carriers comprise at least one time division duplex TDD carrier and at least one uplink supplemental SUL carrier.
The device according to any one of claims 37 to 39, wherein the first uplink carrier is a carrier of a primary cell, and the second uplink carrier is a carrier of a secondary cell;

When the communication unit receives the indication information from the network device, specifically:

Receiving the indication information from the network device on a first downlink carrier, where the first downlink carrier and the first uplink carrier belong to the same cell, or the first downlink carrier and the first An uplink carrier belongs to the same radio access technology.
The device according to any one of claims 37 to 40, wherein the first radio access technology is Long Term Evolution (LTE), and the second radio access technology is a new air interface NR.
The device according to any one of claims 37 to 41, wherein the first uplink carrier is an uplink carrier of a primary cell, and the second uplink carrier is an uplink carrier of a secondary cell;

The processing unit is further configured to:

Controlling, by the communication unit, a downlink reference signal from the network device on a first downlink carrier, where the first downlink carrier and the first uplink carrier belong to the same cell;

Determining, according to the downlink reference signal received by the communication unit, the power of transmitting the uplink signal to the network device on the second uplink carrier.
The device according to claim 42, wherein the processing unit is further configured to:

Controlling, by the communication unit, a downlink reference signal from the network device on a first downlink carrier, where the first downlink carrier is a downlink carrier of a first radio access technology, and the first downlink carrier is The first uplink carrier belongs to the same cell;

Determining, according to the downlink reference signal received by the communication unit, the power of transmitting the uplink signal to the network device on the second uplink carrier.
The device according to any one of claims 37 to 41, wherein the processing unit is further configured to:

Controlling, by the communication unit, a downlink reference signal from the network device on a first downlink carrier, where the first downlink carrier is a downlink carrier of the first radio access technology, and the first downlink is The carrier and the first uplink carrier belong to different cells;

Determining, according to the downlink reference signal received by the communication unit, the power of transmitting the uplink signal to the network device on the second uplink carrier.
An apparatus for transmitting information, comprising: a processing unit and a communication unit;

The processing unit is configured to determine indication information, where the indication information indicates a timing adjustment parameter, where the timing adjustment parameter is used by the terminal device to determine a transmission timing on the first uplink carrier and on the second uplink carrier, where The first uplink carrier is an uplink carrier of the first radio access technology, and the second uplink carrier is an uplink carrier of the second radio access technology;

The communication unit is configured to send the indication information determined by the processing unit to the terminal device.
The apparatus according to claim 45, wherein the second uplink carrier comprises at least two second uplink carriers, and the at least two second uplink carriers belong to the same cell;

The timing adjustment parameter is used by the terminal device to determine a transmission timing on the first uplink carrier and on the at least two second uplink carriers.
The apparatus of claim 46, wherein the at least two second uplink carriers comprise at least one time division duplex TDD carrier and at least one uplink supplemental SUL carrier.
The device according to any one of claims 45 to 47, wherein the first uplink carrier is a carrier of a primary cell, and the second uplink carrier is a carrier of a secondary cell;

When the communication unit sends the indication information to the terminal device, specifically:

Sending the indication information to the terminal device on the first downlink carrier, where the first downlink carrier and the first uplink carrier belong to the same cell, or the first downlink carrier and the first An uplink carrier belongs to the same radio access technology.
The device according to any one of claims 45 to 48, wherein the first radio access technology is Long Term Evolution (LTE), and the second radio access technology is a new air interface NR.
The device according to any one of claims 45 to 49, wherein the first uplink carrier is an uplink carrier of a primary cell, and the second uplink carrier is an uplink carrier of a secondary cell;

The processing unit is further configured to:

Controlling, by the communication unit, the downlink reference signal to be sent to the terminal device on the first downlink carrier, where the first downlink carrier and the first uplink carrier belong to the same cell.
The device according to claim 50, wherein the processing unit is further configured to:

Controlling, by the communication unit, the downlink reference signal to be sent to the terminal device on the first downlink carrier, where the first downlink carrier is a downlink carrier of the first radio access technology, and the first downlink carrier is The first uplink carrier belongs to the same cell.
The device according to any one of claims 45 to 49, wherein the processing unit is further configured to:

Controlling, by the communication unit, the downlink reference signal to be sent to the network device on the first downlink carrier, where the first downlink carrier is a downlink carrier of the first radio access technology, and the first downlink is The carrier and the first uplink carrier belong to different cells.
A chip, characterized in that the chip is connected to a memory for reading and executing a software program stored in the memory to implement the method according to any one of claims 1-10 or 21-36.
A computer storage medium comprising computer readable instructions for causing a computer to perform the method of any one of claims 1-10 or 21-36 when the computer reads and executes the computer readable instructions .
A computer program product comprising instructions, characterized in that, when run on a computer, the computer is caused to perform the method of any of claims 1-10 or 21-36.
An apparatus for receiving information, comprising: a processor, a transceiver, and a memory, wherein the memory stores instructions, when the processor reads and executes the instructions, performing according to claims 1-5 or 21- The method of any of 28.
An apparatus for transmitting information, comprising: a processor, a transceiver, and a memory, wherein the memory stores instructions, when the processor reads and executes the instructions, performing according to claim 6-10 or 29- The method of any of 36.
A communication network system comprising the apparatus for receiving information according to any one of claims 17 to 24 and the apparatus for transmitting information according to any one of claims 25 to 32.