CN107889260B

CN107889260B - Method and device for transmitting control information

Info

Publication number: CN107889260B
Application number: CN201610878327.8A
Authority: CN
Inventors: 吕永霞; 马蕊香
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2016-09-30
Filing date: 2016-09-30
Publication date: 2020-11-10
Anticipated expiration: 2036-09-30
Also published as: CN107889260A

Abstract

A method and device for transmitting control information can improve the reliability of the transmission control information, comprising: generating control information, wherein the control information comprises scheduling information of the terminal equipment and first identification information, and the first identification information is part of identification information in the identification information of the terminal equipment; and sending the control information to the terminal equipment.

Description

Method and device for transmitting control information

Technical Field

The present invention relates to the field of communications, and in particular, to a method and an apparatus for transmitting control information.

Background

With the development of communication technology, future 5G communication systems will be dedicated to support higher system performance, which will support multiple traffic types. For example, the aforementioned various Service types include enhanced Mobile Broadband (eMBB), Massive Machine Type Communication (mtc), Ultra-reliable and low latency Communication (URLLC), Multimedia Broadcast Multicast Service (MBMS), and positioning Service, etc.

One of the major features of 5G communication systems over 4G communication systems is the increased support of URLLC. The services of URLLC include many kinds, and typical examples include industrial control, automation of industrial production processes, human-computer interaction, telemedicine, and the like. URLLC services require high reliability and low latency. However, in the control information in the prior art, in order to ensure the flexibility of resource scheduling, a plurality of possibilities of resource scheduling are provided, and therefore, the number of bits occupied by the control information is large. In the process of transmitting the control information of the URLLC service, when the number of bits occupied by the control information is large, the error probability of transmission will increase, which further causes the number of retransmissions to increase, thereby affecting the reliability of the URLLC service.

Disclosure of Invention

The invention provides a method and a device for transmitting control information, which can improve the reliability of the transmission of the control information.

In a first aspect, a method for transmitting control information is provided, including: generating control information, wherein the control information comprises scheduling information of terminal equipment and first identification information, and the first identification information is part of identification information in the identification information of the terminal equipment; and sending the control information to the terminal equipment.

In the embodiment of the invention, the scheduled terminal equipment is indicated by bearing part of the identification information of the terminal equipment in the control information, so that the control information is simplified, the reliability of control information transmission is improved, and the efficiency of control information transmission is improved.

In a possible implementation manner, the control information includes a check code of information explicitly carried in the control information, and at least part of the first identification information is included in the check code in a scrambled manner.

In the embodiment of the invention, the control information can be loaded in the control information in an explicit or implicit mode, so that the flexibility of the control information is improved.

In a possible implementation manner, part of the first identification information is included in the check code in a scrambled manner, and the remaining information of the first identification information except the part of the first identification information is explicitly carried in the control information.

In one possible implementation, the check code is a cyclic redundancy check, CRC, code.

In one possible implementation, the first identification information is explicitly included in the control information.

In one possible implementation, the check code is less than 16 bits.

In one possible implementation, the first identification information is less than 16 bits.

In a second aspect, a method for transmitting control information is provided, including: receiving control information, wherein the control information comprises scheduling information of terminal equipment and first identification information, and the first identification information is part of identification information in the identification information of the terminal equipment; and acquiring the scheduling information according to the control information.

In one possible implementation, the check code is less than 16 bits.

In a third aspect, an apparatus is provided that includes means for performing the method of the first aspect. Based on the same inventive concept, as the principle of the device to solve the problem corresponds to the scheme in the method design of the first aspect, the implementation of the device can refer to the implementation of the method, and repeated details are not repeated.

In a fourth aspect, an apparatus is provided that includes means for performing the method of the second aspect. Based on the same inventive concept, as the principle of the device to solve the problem corresponds to the scheme in the method design of the second aspect, the implementation of the device can refer to the implementation of the method, and repeated details are not repeated.

In a fifth aspect, a communication system is provided, which comprises the apparatus of the third aspect and the apparatus of the fourth aspect.

In a sixth aspect, an apparatus is provided that includes a memory to store a program; a transceiver for communicating with other devices; a processor for executing the program in the memory, the processor being adapted to perform the method of the first aspect when the program is executed.

In a seventh aspect, an apparatus is provided that includes a memory to store a program; a transceiver for communicating with other devices; a processor for executing the program in the memory, the processor being adapted to perform the method of the second aspect when the program is executed.

In an eighth aspect, a communication system is provided, which includes the apparatus of the sixth aspect and the apparatus of the seventh aspect.

In a ninth aspect, there is provided a computer storage medium storing a computer program comprising instructions for performing the method of the first aspect or any of its possible implementations.

In a tenth aspect, there is provided a computer storage medium for storing a computer program comprising instructions for performing the method of the second aspect or any possible implementation of the second aspect.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments of the present invention will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic view of an application scenario of an embodiment of the present invention.

Fig. 2 is a schematic block diagram of a method of transmitting control information according to an embodiment of the present invention.

Fig. 3 is a diagram illustrating a format of control information according to an embodiment of the present invention.

Fig. 4 is a diagram illustrating a format of control information according to another embodiment of the present invention.

Fig. 5 is a schematic block diagram of a method of transmitting control information according to an embodiment of the present invention.

Fig. 6 is a schematic diagram of a system bandwidth allocation method according to an embodiment of the present invention.

Fig. 7 is a diagram illustrating configuring a size of a transport block according to an embodiment of the present invention.

Fig. 8 is a schematic structural diagram of an apparatus according to an embodiment of the present invention.

Fig. 9 is a schematic structural diagram of an apparatus according to another embodiment of the present invention.

Fig. 10 is a schematic structural diagram of an apparatus according to another embodiment of the present invention.

Fig. 11 is a schematic structural diagram of an apparatus according to another embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments, but not all embodiments, of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be understood that the technical solutions of the embodiments of the present invention can be applied to various communication systems, for example: a Global System for Mobile communications (GSM) System, a Code Division Multiple Access (CDMA) System, a Wideband Code Division Multiple Access (WCDMA) System, a General Packet Radio Service (GPRS), a Long Term Evolution (LTE) System, a LTE Frequency Division Duplex (FDD) System, a LTE Time Division Duplex (TDD) System, a Universal Mobile Telecommunications System (UMTS) System, a Worldwide Interoperability for Microwave Access (WiMAX) System, a New wireless communication System (NR 5G) System, or a Radio Access network (NR 5G) System.

The terminal device according to the embodiments of the present invention may include various handheld devices, vehicle-mounted devices, wearable devices, computing devices or other processing devices connected to a wireless modem, and various forms of User Equipment (UE), Mobile Stations (MS), terminals (terminal), terminal devices (terminal) and the like. For convenience of description, in the embodiments of the present invention, the above-mentioned devices are collectively referred to as terminal devices.

The Network device in the embodiment of the present invention may be a device for communicating with a terminal device, where the Network device may be a Base Transceiver Station (BTS) in GSM or CDMA, a Base Station (NodeB, NB) in a WCDMA system, an evolved node b (eNB, or eNodeB) in an LTE system, a wireless controller in a Cloud Radio Access Network (CRAN) scenario, or a relay Station, an Access point, a vehicle-mounted device, a wearable device, a Network device in a future 5G Network, a Network device in a future evolved PLMN Network, or the like, and the embodiment of the present invention is not limited.

In order to improve reliability of transmission control information, embodiments of the present invention provide a method and an apparatus for transmitting control information. The method simplifies the control information on the premise of reserving effective information in the control information. The bit number of the simplified control information is reduced, so that the reliability of the control information is improved, and the efficiency of transmitting the control information is improved.

Fig. 1 is a schematic diagram of an application scenario of an embodiment of the present invention. As shown in fig. 1, in the embodiment of the present invention, control information may be transmitted to a terminal device by a network device in a communication system. Control information may also be transmitted by a first terminal Device to a second terminal Device in the communication system (e.g., as may be applied to Device-to-Device (D2D) communication traffic). The control information in the embodiment of the present invention may be used to indicate uplink and downlink resource allocation, Hybrid Automatic Repeat Request (HARQ) information, power control information, and the like.

In one example, in the case where the network device transmits control information to the terminal device, the control information may be referred to as downlink control information. For example, the downlink control information may include scheduling information of the terminal device, where the scheduling information may be used to indicate uplink and downlink resource allocation, a transport block size, and the like of the terminal device, and the control information carries identification information of the terminal device.

In another example, in case the first terminal device transmits control information to the second terminal device, the control information may contain scheduling information of the second terminal device, e.g. the control information may indicate on which time-frequency resources the second terminal device receives data transmitted by the first terminal device. The control information may include identification information of the second terminal device, or the control information may include identification information of the terminal device at the receiving end.

Fig. 2 is a schematic block diagram of a method 200 of transmitting control information according to an embodiment of the present invention. The method can be executed by the network equipment and the target terminal equipment. In the case of execution by the target terminal device, the target terminal device is the terminal device that transmits the control information, and the terminal device in method 200 is the terminal device that receives the control information. As shown in fig. 2, the method 200 includes:

s201, generating control information, wherein the control information comprises scheduling information of the terminal equipment and first identification information, and the first identification information is part of identification information in the identification information of the terminal equipment.

Alternatively, the scheduling information may be information for scheduling the terminal device. For example, the scheduling information may include time-frequency resource allocation information of a data channel of the terminal device, size information of a transport block of the terminal device, HARQ process information of the terminal device, new and old data identification information, retransmission redundancy version information, and other information.

Alternatively, the identification information of the terminal device may be network identification information assigned to the terminal device by the network device. For example, the identification information of the terminal device may be a Cell Radio Network Temporary Identifier (C-RNTI) of the terminal device. Alternatively, if the terminal device is configured as Semi-Persistent Scheduling, the Network identification information may be Semi-Persistent Scheduling Cell Radio Network Temporary Identifier (SPSC-RNTI) of the terminal device. The identification information of the terminal device can be in other formats, and the embodiment of the invention does not limit the type of the identification information of the terminal device.

Alternatively, the first identification information may be part of the identification information of the terminal device. The first identification information may be selected according to a principle that the selected part of the identification information may distinguish the called terminal device. For example, the first identification information may be several bits of the identification information selected from the upper bits, or several bits of the identification information selected from the lower bits. Or the first identification information may be information bits, such as odd or even bits, identifying a specific portion of the information.

As a specific example, fig. 3 shows a format diagram of control information according to an embodiment of the present invention. In fig. 3, the scheduling information is carried in the upper 8 bits (i.e., the Most Significant 8 bits (MSB)) of the control information, and the first identification information is carried in the lower 8 bits (i.e., the Least Significant 8 bits (LSB)) of the control information. The identification information of the terminal device may include 16 bits. The first identification information may be 8-bit ID information selected from lower bits among the identification information of the terminal device.

Optionally, the method for transmitting control information according to the embodiment of the present invention may be applied to multiple services in a communication system. The embodiment of the present invention is not limited thereto. For example, the method 200 of the present embodiment may be applied to URLLC services.

S202, the control information is sent to the terminal equipment.

Alternatively, before the control information is transmitted to the terminal device, the control information may be subjected to channel coding, modulation, precoding, layer mapping, resource mapping, and the like.

Alternatively, the channel coding may employ linear block coding, such as Reed-Muller (r) coding, or non-block coding, such as convolutional coding.

Optionally, in the method 200, there are various ways for the control information to carry the first identification information. In one approach, the first identification information is explicitly included in the control information. I.e. the first identification information occupies information bits of the control information. In another way, the first identification information may be implicitly included in the control information, for example, the first identification information may be carried in the control information by scrambling the control information.

For example, as an example, in the method 200, the control information may include a check code of information explicitly carried in the control information. Optionally, at least part of the first identification information may be implicitly included in the check code for scrambling the check code.

Optionally, the information carried by the display may include the scheduling information. In addition, in the case that a part of the first identification information is implicitly contained in the check code, the rest of the first identification information except for the part of the first identification information may be explicitly carried in the control information. The information carried by the display may further include the remaining information in the first identification information.

Optionally, the embodiment of the present invention does not limit the type of the check code. For example, the Check code may be a Cyclic Redundancy Check (CRC) code.

Optionally, in the above example, all information of the first identification information may be implicitly included in the check code, or part of the identification information in the first identification information may be implicitly included in the check code.

For example, as a specific example, fig. 4 is a schematic structural diagram of control information according to an embodiment of the present invention. In fig. 4, the scheduling information is carried in the upper 8 bits of the control information (i.e. 8-bit MSB, the check code of the scheduling information is 8-bit CRC code, which is carried in the lower 8 bits of the control information (i.e. 8-bit LSB). the first identification information is implicitly carried in the control information by scrambling the CRC code.

As one example, in a case where partial information in the first identification information is implicitly included in the check code for scrambling the check code, the remaining information except for the partial information in the first identification information is explicitly included in the control information.

Alternatively, the check code may be smaller than 16 bits.

Alternatively, the first identification information may be less than 16 bits.

Fig. 5 illustrates a method 500 of transmitting control information according to an embodiment of the present invention, where the method 500 may be performed by a terminal device in a communication system. The same or similar contents in the method shown in fig. 5 as those in fig. 2 can refer to the description related to the method in fig. 2, and are not repeated here. The method 500 includes:

s501, receiving control information, wherein the control information comprises scheduling information of terminal equipment and first identification information, and the first identification information is part of identification information in the identification information of the terminal equipment;

alternatively, the control information may be transmitted by the network device or another terminal device.

For example, in D2D communication, control information may be sent by a first terminal device to a second terminal device. The control information may indicate at which time-frequency resources of the second terminal device the data transmitted by the first terminal is received.

S502, obtaining the scheduling information according to the control information.

Optionally, in the method 500, after receiving the control information, the terminal device needs to determine whether the first identification information carried in the control information is consistent with part of the identification information in the identification information of the terminal device, and in the case of consistency, the terminal device may determine that the control information belongs to the terminal device.

Optionally, in the method 500, the control information includes a check code indicating information carried in the control information, and at least part of the first identification information is implicitly included in the check code and is used to scramble the check code.

Optionally, in the method 500, a part of the first identification information is implicitly included in the check code, and is used to scramble the check code, and the remaining information except the part of the first identification information is explicitly carried in the control information.

Optionally, in the method 500, the check code is a cyclic redundancy check, CRC, code.

Optionally, in the method 500, the first identification information is explicitly included in the control information.

Optionally, in the method 500, the check code is less than 16 bits.

Optionally, in the method 500, the first identification information is smaller than 16 bits.

The following describes an embodiment of the present invention in more detail with reference to a specific example of applying the method for transmitting control information to URLLC service. It should be noted that the following specific examples are merely provided to help those skilled in the art understand the embodiments of the present invention, and are not intended to limit the embodiments of the present invention to the specific values or specific scenarios illustrated. It will be apparent to those skilled in the art that various equivalent modifications or variations are possible in light of the specific examples given, and such modifications or variations are intended to be included within the scope of embodiments of the present invention.

In order to facilitate understanding of the embodiment of the present invention, the performance index of the URLLC service is first introduced. In order to better quantify the performance index of the URLLC service and thus provide a reference input and evaluation criterion for 5G system design, the performance index of the URLLC service is defined by the 3rd Generation Partnership Project (3 GPP) Radio Access Network (RAN) and RAN1 working group as follows:

time delay: the transmission time required for a user application layer packet to reach the receiving wireless protocol stack layer 2/3SDU from SDU (service Data unit) at the sending wireless protocol stack layer 2/3. The user plane delay requirement of URLLC service is 0.5ms for both uplink and downlink, and the above requirement is only applicable when neither the base station nor the terminal is in Discontinuous Reception (DRX). It should be noted that the performance requirement of 0.5ms here refers to the average delay of the data packet, and is not bound to the reliability requirement described below;

reliability: the success probability of correctly transmitting a certain bit from the sender to the receiver within a certain time (L seconds) under a given channel quality condition, which is still defined as the time required for the user application layer packet to reach the receiver radio protocol stack layer 2/3SDU from SDU (service Data unit) of the sender radio protocol stack layer 2/3. For URLLC traffic, a typical requirement is to reach 99.999% reliability within 1 ms. It should be noted that the above performance index is only a typical value, and a specific URLLC service may have different requirements on reliability, for example, some extremely harsh industrial control needs to reach 99.9999999% of transmission success probability within 0.25ms of end-to-end delay.

System capacity: the maximum throughput of the cell which can be achieved by the system on the premise of meeting a certain proportion of interrupted users, wherein the interrupted users mean that the system cannot meet the reliability requirement of the system in a certain time delay range.

Those skilled in the art will appreciate that the reliability of the URLLC traffic user control channel is higher when the number of retransmissions is small than the reliability requirement (1%) of the conventional LTE downlink control channel. One possible way to improve the reliability of the downlink control channel is to reduce the information bits transmitted by the downlink control channel and allocate more time-frequency resources to the downlink control channel.

From the requirement of low delay performance of URLLC service, one feasible scheduling strategy is to give more time-frequency resources to a single user so that each packet can be transmitted as soon as possible. Allocating more time-frequency resources to a single user may also ensure that the channel coding rate for data transmission is low enough to ensure reliability per transmission. The scheduling strategy means that the number of users scheduled simultaneously in the system is not too many, and the allocation of time-frequency resources of each user data channel is relatively simple, so the information bit number of the data channel time-frequency resource allocation in the control information of the URLLC service can be reduced. In addition, from the requirement of high reliability of URLLC service, the requirement of using high-order modulation to improve the spectrum efficiency of the system becomes relatively less urgent, so the indication of the coded modulation mode in the control information can be reduced to some extent.

According to the analysis of the indexes such as reliability and transmission delay of the URLLC service, the bit number of the scheduling information in the control information of the URLLC service is relatively small. In the prior art, the scheduling information is usually checked by using a 16-bit check code. In this case, the 16-bit check code occupies a larger overhead of control information than the simplified scheduling information. And thus the object of condensing the control information cannot be achieved.

The following describes a method 600 for transmitting control information applied to URLLC traffic, where the method 600 may be performed by a network device or a terminal device in D2D communication traffic. The method 600 will be described as being performed by a network device, for example.

S601, the network device generates control information for the URLLC service, where the control information includes scheduling information of the terminal device and first identification information, and the first identification information is part of identification information in the identification information of the terminal device.

S602, the network device sends the control information to the terminal device.

In the embodiment of the invention, the control information used for the URLLC service bears part of the identification information of the terminal equipment to indicate the scheduled terminal equipment, so that the control information is simplified, the reliability of control information transmission is improved, and the efficiency of control information transmission is improved.

Optionally, the control information may include a check code of information displayed and carried in the control information, or may not include the check code. The information displayed and carried mainly contains scheduling information, and the bit number of the scheduling information in the control information of the URLLC service is small, so the probability of the scheduling information error is reduced. In this case, the check code for checking the scheduling information may be reduced accordingly, or even the check code may not be used, thereby achieving the purpose of simplifying the control information. Those skilled in the art can understand that due to the characteristic of the relatively small bit number of the URLLC service scheduling information, the reduced check code does not affect the reliability of the transmission control information.

Alternatively, the check code may be a CRC code, and the CRC code may be smaller than 16 bits.

Alternatively, the first identification information may be included in the control information in a display manner. Or, in the case that the control information includes the check code, at least part of the first identification information is implicitly included in the check code for scrambling the check code.

For example, as a specific example, the control information may include 6 bits of first identification information and an 8-bit CRC code. Wherein the 6-bit first identification information may be scrambled over the 8-bit CRC code by means of complementary bits (e.g., cyclic extension complementary bits or zero-added complementary bits).

For example, as another specific example, the control information may include 10 bits of first identification information and an 8-bit CRC code. Wherein, 8 bits of identification information in the 10 bits of first identification information can be implicitly contained in the CRC code by means of scrambling. The remaining 2 bits of identification information among the 10 bits of identification information may be carried in the control information in a display manner.

Optionally, in the scheduling policy of the URLLC service, the number of users scheduled by the system at the same time is small, so that it is not necessary to carry all the identification information of the scheduled terminal device in the control information, but only part of the identification information of the scheduled terminal device is carried in the control information. Therefore, the purposes of simplifying the control information and further improving the reliability of the transmission control information are achieved.

For ease of understanding, the following describes a method for simplifying scheduling information in control information in URLLC traffic. The scheduling information in URLLC service may include information such as HARQ process of the terminal device, new and old data identifiers, time-frequency resource allocation of data channel, transport block size, and retransmission redundancy version. The time-frequency resource allocation information may only include resource allocation information of a time domain or a frequency domain, that is, a unit of time-domain scheduling or frequency-domain scheduling of the terminal device may be fixed, in which case the resource allocation information of the terminal device may only include resource allocation information of a frequency domain or time-domain.

In the RULLC service, more resources are allocated to a single user, i.e. the combination of resource allocations is less. For example, as an example, fig. 6 shows an example of system bandwidth allocation in URLLC service, where the system bandwidth allocation is limited to several sub-bands, and there are only limited possibilities for frequency domain resource allocation of the terminal device. In fig. 6, the total system bandwidth is allocated to two sub-bands, and the frequency domain resource allocation is only 3, so the number of bits for terminal equipment resource allocation is 2. The number of sub-bands may be predefined according to the system bandwidth, or may be configured by the network device through high-level signaling.

In addition, the size of the transport block of the terminal device may also be limited, that is, if the data arriving at the higher layer is smaller than the size of the transport block of the physical layer, the data packet at the higher layer needs to be padded with zero. In addition, the signaling indication of the transport block size and the specific mapping of the transport block size can also be realized through higher layer signaling configuration. For example, fig. 7 is a schematic diagram of configuring the size of a transport block according to an embodiment of the present invention. In fig. 7, four possible transport block sizes that the physical layer can carry are defined, i.e. the physical layer transport supports only a limited number of transport block sizes.

As can be seen from the examples of fig. 6 and fig. 7, the scheduling information of URLLC service may contain a smaller number of bits after being reduced. So that the control information can be reduced.

In the embodiment of the invention, the bits occupied by the control information are reduced by simplifying the scheduling information in the control information of the URLLC service and the identification information of the terminal equipment, so that the reliability of transmitting the control information is improved, and the efficiency of transmitting the control information is improved.

The method for user authentication according to the embodiment of the present invention is introduced above with reference to fig. 1 to 7, and the apparatus according to the embodiment of the present invention will be described in detail below with reference to fig. 8 to 11. For convenience of description, please refer to corresponding contents in fig. 1 to fig. 7 for the same or similar parts in fig. 8 to fig. 11, which are not repeated herein.

Fig. 8 shows a schematic block diagram of an apparatus 800 of an embodiment of the invention. The apparatus 800 may be a network device or a terminal device, or may also be other functional entities. The apparatus 800 is capable of implementing the steps performed by the network device in fig. 1-7, or the steps performed by the terminal device that transmits the control information. The apparatus 800 comprises: processing module 810 and communication module 820

The processing module 810 is configured to generate control information, where the control information includes scheduling information of a terminal device and first identification information, and the first identification information is part of identification information in the identification information of the terminal device; the communication module 820 is configured to send the control information to the terminal device.

Fig. 9 shows a schematic block diagram of an apparatus 900 of an embodiment of the invention. The apparatus 900 may be a terminal device, or may also be another functional entity. The apparatus 900 is capable of implementing the steps in fig. 1-7 performed by a terminal device receiving control information. The apparatus 900 comprises: a processing module 910 and a communication module 920,

the communication module 920 is configured to receive control information, where the control information includes scheduling information of a terminal device and first identification information, and the first identification information is part of identification information in the identification information of the terminal device;

the processing module 910 is configured to obtain the scheduling information according to the control information.

Fig. 10 shows a schematic block diagram of an apparatus 1000 of an embodiment of the invention. The apparatus 1000 may be a network device or a terminal device, or may also be other functional entities. The apparatus 1000 is capable of implementing the steps performed by the network device in fig. 1-7, or the steps performed by the terminal device that transmits the control information. The apparatus 1000 comprises:

a memory 1010 for storing a program;

a transceiver 1020 for communicating with other devices;

a processor 1030, configured to generate control information, where the control information includes scheduling information of a terminal device and first identification information, and the first identification information is part of identification information in identification information of the terminal device; and for transmitting the control information to the terminal device via the transceiver 1020.

Fig. 11 shows a schematic block diagram of an apparatus 1100 of an embodiment of the invention. The apparatus 1100 may be a terminal device, or may also be another functional entity. The apparatus 1100 is capable of implementing the steps in fig. 1-7 performed by a terminal device receiving control information. The apparatus 1100 comprises:

a memory 1010 for storing a program;

a transceiver 1020 for communicating with other devices;

a processor 1030, configured to receive control information through the transceiver 1020, where the control information includes scheduling information of a terminal device and first identification information, and the first identification information is a part of identification information in identification information of the terminal device; and the scheduling information is acquired according to the control information.

It is understood that the processor in the embodiments of the present invention may be an integrated circuit chip having signal processing capability. In implementation, the steps of the above method embodiments may be performed by integrated logic circuits of hardware in a processor or instructions in the form of software. The Processor may be a general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic device, or discrete hardware components. The various methods, steps and logic blocks disclosed in the embodiments of the present invention may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present invention may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in a memory, and a processor reads information in the memory and completes the steps of the method in combination with hardware of the processor.

It will be appreciated that the memory in embodiments of the invention may be either volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The non-volatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash Memory. Volatile Memory can be Random Access Memory (RAM), which acts as external cache Memory. By way of example, but not limitation, many forms of RAM are available, such as Static random access memory (Static RAM, SRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic random access memory (Synchronous DRAM, SDRAM), Double Data Rate Synchronous Dynamic random access memory (DDR SDRAM), Enhanced Synchronous SDRAM (ESDRAM), Synchronous link SDRAM (SLDRAM), and Direct Rambus RAM (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A method of transmitting control information, comprising:

generating control information, wherein the control information includes scheduling information of a terminal device and first identification information, the first identification information is partial identification information in the identification information of the terminal device, the first identification information is used for indicating the scheduled terminal device by using the partial identification information, and the first identification information is less than 16 bits;

and sending the control information to the terminal equipment.

2. The method of claim 1, wherein the control information comprises a check code for information explicitly carried in the control information, at least part of the first identification information being included in the check code in a scrambled manner.

3. The method of claim 2, wherein a part of the first identification information is included in the check code in a scrambled manner, and remaining information of the first identification information except the part of the information is explicitly carried in the control information.

4. A method as claimed in claim 2 or 3, wherein the check code is a cyclic redundancy check, CRC, code.

5. The method of claim 1, wherein the first identification information is explicitly included in the control information.

6. A method as claimed in claim 2 or 3, wherein the check code is less than 16 bits.

7. A method of transmitting control information, comprising:

receiving control information, wherein the control information includes scheduling information of a terminal device and first identification information, the first identification information is partial identification information in the identification information of the terminal device, the first identification information is used for indicating the scheduled terminal device by using the partial identification information, and the first identification information is less than 16 bits;

and acquiring the scheduling information according to the control information.

8. The method of claim 7, wherein the control information comprises a check code for information explicitly carried in the control information, at least part of the first identification information being included in the check code in a scrambled manner.

9. The method of claim 8, wherein a part of the first identification information is included in the check code in a scrambled manner, and remaining information of the first identification information except the part of the information is explicitly carried in the control information.

10. The method of claim 8 or 9, wherein the check code is a cyclic redundancy check, CRC, code.

11. The method of claim 7, wherein the first identification information is explicitly included in the control information.

12. The method of claim 8 or 9, wherein the check code is less than 16 bits.

13. An apparatus for transmitting control information, comprising a processing module and a communication module,

the processing module is configured to generate control information, where the control information includes scheduling information of a terminal device and first identification information, the first identification information is part of identification information in the identification information of the terminal device, the first identification information is used to indicate the scheduled terminal device only by using the part of identification information, and the first identification information is smaller than 16 bits;

the communication module is used for sending the control information to the terminal equipment.

14. The apparatus of claim 13, wherein the control information comprises a check code for information explicitly carried in the control information, at least a portion of the first identification information being included in the check code in a scrambled manner.

15. The apparatus of claim 14, wherein a part of the first identification information is included in the check code in a scrambled manner, and remaining information of the first identification information except the part of the information is explicitly carried in the control information.

16. The apparatus of claim 14 or 15, wherein the check code is a cyclic redundancy check, CRC, code.

17. The apparatus of claim 13, wherein the first identification information is explicitly included in the control information.

18. The apparatus of claim 14 or 15, wherein the check code is less than 16 bits.

19. An apparatus for transmitting control information, comprising: a processing module and a communication module, wherein,

the communication module is configured to receive control information, where the control information includes scheduling information of a terminal device and first identification information, the first identification information is part of identification information in the identification information of the terminal device, the first identification information is used to indicate the scheduled terminal device only by using the part of identification information, and the first identification information is smaller than 16 bits;

the processing module is used for acquiring the scheduling information according to the control information.

20. The apparatus of claim 19, wherein the control information comprises a check code for information explicitly carried in the control information, at least a portion of the first identification information being included in the check code in a scrambled manner.

21. The apparatus of claim 20, wherein a part of the first identification information is included in the check code in a scrambled manner, and remaining information of the first identification information except the part of the information is explicitly carried in the control information.

22. The apparatus of claim 20 or 21, wherein the check code is a cyclic redundancy check, CRC, code.

23. The apparatus of claim 19, wherein the first identification information is explicitly included in the control information.

24. The apparatus of claim 20 or 21, wherein the check code is less than 16 bits.