CN110677912A

CN110677912A - Information sending method and device and information receiving method and device

Info

Publication number: CN110677912A
Application number: CN201910918276.0A
Authority: CN
Inventors: 周欢; 徐志昆
Original assignee: Beijing Spreadtrum Hi Tech Communications Technology Co Ltd
Current assignee: Beijing Spreadtrum Hi Tech Communications Technology Co Ltd
Priority date: 2019-09-26
Filing date: 2019-09-26
Publication date: 2020-01-10
Anticipated expiration: 2039-09-26
Also published as: CN110677912B

Abstract

The present disclosure relates to an information sending method and apparatus, and an information receiving method and apparatus, wherein the information sending method includes: sending indication information, wherein the indication information is used for indicating that: and under the condition that the time frequency resources in the first wave beam direction are overlapped with the time frequency resources in one or more than two second wave beam directions, whether the time frequency resources in the first wave beam direction are used for transmitting a Physical Downlink Shared Channel (PDSCH) or not is judged. By indicating whether the time frequency resources in the beam direction in which each time frequency resource is overlapped are used for transmitting the PDSCH, the code rate of data can be reduced, and the transmission success rate is improved.

Description

Information sending method and device and information receiving method and device

Technical Field

The present disclosure relates to the field of communications technologies, and in particular, to an information sending method and apparatus, and an information receiving method and apparatus.

Background

Before the base station communicates with the terminal device, uplink synchronization and downlink synchronization need to be performed, so that the terminal device is accessed to the cell. After the terminal accesses the cell, the terminal may receive information from the base station by using the specified time-frequency resource, however, in the related art, when the base station transmits downlink data, the code rate of the data is higher, and the success rate of data transmission is lower.

Disclosure of Invention

In view of this, the present disclosure provides an information sending method, including:

sending indication information, wherein the indication information is used for indicating that: and under the condition that the time frequency resources in the first wave beam direction are overlapped with the time frequency resources in one or more than two second wave beam directions, whether the time frequency resources in the first wave beam direction are used for transmitting a Physical Downlink Shared Channel (PDSCH) or not is judged.

In a possible implementation manner, the time frequency resources in the first beam direction are time frequency resources for transmitting a first synchronization signal block SSB, and the time frequency resources in one or more second beam directions are time frequency resources for transmitting one or more second SSBs.

In a possible implementation manner, the time frequency resource in the first beam direction is a time frequency resource for transmitting a first downlink reference signal, and the time frequency resource in one or more second beam directions is a time frequency resource for transmitting one or more second downlink reference signals.

In one possible implementation, the first downlink reference signal and the second downlink reference signal include: the channel state for tracking reference signals TRS indicates reference signals CSI-RS, CSI-RS for beam management, and CSI-RS for acquiring channel state information.

In one possible embodiment, the method further comprises:

and transmitting the PDSCH by using the time-frequency resource in the first wave beam direction under the condition that the indication information is used for indicating that the time-frequency resource in the first wave beam direction is used for transmitting the PDSCH in the physical downlink shared channel.

In one possible embodiment, the method further comprises:

and under the condition that the indication information is used for indicating that the time-frequency resource in the first wave beam direction is not used for transmitting the Physical Downlink Shared Channel (PDSCH), indicating that the information transmitted by the time-frequency resource in the first wave beam direction is used for carrying out rate matching on the information transmitted by the time-frequency resource in the specified second wave beam direction.

According to another aspect of the present disclosure, there is provided an information receiving method, the method including:

receiving indication information, wherein the indication information is used for indicating that: and under the condition that the time frequency resources in the first wave beam direction are overlapped with the time frequency resources in one or more than two second wave beam directions, whether the time frequency resources in the first wave beam direction are used for transmitting a Physical Downlink Shared Channel (PDSCH) or not is judged.

In one possible embodiment, the method further comprises:

and receiving the PDSCH by using the time-frequency resource in the first wave beam direction under the condition that the indication information is used for indicating that the time-frequency resource in the first wave beam direction is used for transmitting the PDSCH.

In one possible embodiment, the method further comprises:

and under the condition that the indication information is used for indicating that the time-frequency resource in the first wave beam direction is not used for transmitting the Physical Downlink Shared Channel (PDSCH), carrying out rate matching on the information transmitted by the time-frequency resource in the specified second wave beam direction by using the information transmitted by the time-frequency resource in the first wave beam direction.

According to another aspect of the present disclosure, there is provided an information transmitting apparatus, the apparatus including:

a sending module, configured to send indication information, where the indication information is used to indicate: and under the condition that the time frequency resources in the first wave beam direction are overlapped with the time frequency resources in one or more than two second wave beam directions, whether the time frequency resources in the first wave beam direction are used for transmitting a Physical Downlink Shared Channel (PDSCH) or not is judged.

In a possible implementation, the sending module is further configured to:

According to another aspect of the present disclosure, there is provided an information receiving apparatus, the apparatus including:

a receiving module, configured to receive indication information, where the indication information is used to indicate: and under the condition that the time frequency resources in the first wave beam direction are overlapped with the time frequency resources in one or more than two second wave beam directions, whether the time frequency resources in the first wave beam direction are used for transmitting a Physical Downlink Shared Channel (PDSCH) or not is judged.

In a possible implementation, the receiving module is further configured to:

According to another aspect of the present disclosure, a computer device is presented, the computer device comprising: a processor; a memory for storing processor-executable instructions;

wherein the processor is configured to:

and executing the information sending method or executing the information receiving method.

According to another aspect of the present disclosure, a non-transitory computer-readable storage medium is provided, on which computer program instructions are stored, which, when executed by a processor, implement the information transmitting method or the information receiving method.

By the above method, the base station of the embodiment of the disclosure may send the indication information to indicate whether the time-frequency resource in the first beam direction is used for transmission of the PDSCH under the condition that the time-frequency resource in the first beam direction overlaps with the time-frequency resource in one or more second beam directions, and may reduce the code rate of data by indicating whether the time-frequency resource in the beam direction where each time-frequency resource overlaps is used for transmission of the PDSCH, thereby improving the transmission success rate.

Other features and aspects of the present disclosure will become apparent from the following detailed description of exemplary embodiments, which proceeds with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate exemplary embodiments, features, and aspects of the disclosure and, together with the description, serve to explain the principles of the disclosure.

Fig. 1 shows a flowchart of an information transmitting method according to an embodiment of the present disclosure.

Fig. 2 shows a distribution diagram of SSB time-frequency resources according to an embodiment of the present disclosure.

Fig. 3 shows a flowchart of an information transmitting method according to an embodiment of the present disclosure.

Fig. 4 shows a flowchart of an information receiving method according to an embodiment of the present disclosure.

Fig. 5 shows a flowchart of an information receiving method according to an embodiment of the present disclosure.

Fig. 6 shows a block diagram of an information transmitting apparatus according to an embodiment of the present disclosure.

Fig. 7 shows a block diagram of an information receiving apparatus according to an embodiment of the present disclosure.

Fig. 8 shows a schematic structural diagram of a mobile communication system according to an embodiment of the present disclosure.

Detailed Description

Various exemplary embodiments, features and aspects of the present disclosure will be described in detail below with reference to the accompanying drawings. In the drawings, like reference numbers can indicate functionally identical or similar elements. While the various aspects of the embodiments are presented in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.

The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments.

Furthermore, in the following detailed description, numerous specific details are set forth in order to provide a better understanding of the present disclosure. It will be understood by those skilled in the art that the present disclosure may be practiced without some of these specific details. In some instances, methods, means, elements and circuits that are well known to those skilled in the art have not been described in detail so as not to obscure the present disclosure.

Referring to fig. 1, fig. 1 shows a flowchart of an information transmitting method according to an embodiment of the present disclosure.

The method can be applied to Access Network equipment, where the Access Network equipment can be a Base Station (BS), and can also be referred to as base station equipment, and is a device deployed in a Radio Access Network (RAN) to provide a wireless communication function. For example, the device providing the base station function in the 2G network includes a Base Transceiver Station (BTS), the device providing the base station function in the 3G network includes a node B (english: NodeB), the device providing the base station function in the 4G network includes an evolved node B (evolved NodeB, eNB), the device providing the base station function in the Wireless Local Area Network (WLAN) is an Access Point (AP), the device providing the base station function in the 5G system is a gNB, and a node B (ng-eNB) that continues to evolve, the access network device in the embodiment of the present disclosure may further include a device providing the base station function in a new future communication system, and the specific implementation manner of the access network device in the embodiment of the present disclosure is not limited. The access network equipment may also include Home base stations (Home enbs, henbs), relays (Relay), Pico base stations Pico, etc.

As shown in fig. 1, the method includes:

step S11, sending indication information, where the indication information is used to indicate: and under the condition that the time-frequency resource in the first beam direction is overlapped with the time-frequency resource in one or more than two second beam directions, whether the time-frequency resource in the first beam direction is used for transmitting a Physical Downlink Shared Channel (PDSCH) or not is determined.

It should be noted that, in the case that the time-frequency resource in the first beam direction is used for transmission of the PDSCH, it can be considered as follows: the PDSCH transmitted by the time-frequency resource in the first beam direction does not need to perform Rate matching (RM for short) on the information transmitted by the time-frequency resource in the second beam direction, otherwise, when the time-frequency resource in the first beam direction is not used for transmitting the PDSCH, it can be regarded as: the PDSCH transmitted by the time-frequency resource in the first beam direction needs to perform Rate matching (RM for short) on the information transmitted by the time-frequency resource in the other second beam direction. In the related art, the PDSCH needs to perform rate matching on the information transmitted by the time-frequency resources in all beam directions or does not perform rate matching on the information transmitted by the time-frequency resources in all beam directions, and therefore, the PDSCH has poor flexibility, high code rate and low success rate of data transmission. According to the information sending method provided by the embodiment of the disclosure, when the terminal receives the indication information, the PDSCH can be prevented from rate matching the time-frequency resource transmission information in all beam directions or not rate matching the time-frequency resource transmission information in all beam directions, so that the application flexibility is improved, the data code rate is reduced, and the transmission success rate is increased.

In a possible embodiment, the time frequency resources may include time domain resources and frequency domain resources, and the overlapping of the time frequency resources of the first beam direction and the time frequency resources of one or more second beam directions in step S11 may include:

the time frequency resources of the first beam direction overlap with the time frequency resources of the second beam direction in time domain resources and/or frequency domain resources.

In one possible implementation, the time-frequency resources may include rb (resource block) level resources, re (resource element) level resources, and the like.

The time frequency resources may include time domain resources and frequency domain resources, and the overlapping of the time frequency resources in the first beam direction and the time frequency resources in one or more than two second beam directions in step S11 may include:

the RB-level resources or RE-level resources of the first beam direction overlap with the RB-level resources or RE-level resources of the second beam direction.

In one possible embodiment, the "overlap" described above may include a partial overlap and a full overlap.

Under the condition that the time frequency resources in the first beam direction are partially or completely overlapped with the time frequency resources in one or more than two second beam directions, the base station can indicate whether the overlapped time frequency resources can be used for carrying out PDSCH transmission through the indication information.

In a possible implementation manner, after the terminal device accesses the cell, the cell (base station) may send the indication information through higher layer signaling.

In a possible implementation manner, the time-frequency resource in the first beam direction may be a time-frequency resource for transmitting a first Synchronization Signal Block (SSB), and the time-frequency resource in one or more second beam directions may be a time-frequency resource for transmitting one or more second SSBs. The first and second SSBs may be any different SSBs.

In the related art, the terminal device synchronizes the synchronization signal and the primary system message sent by the access network device in a broadcast manner. In NR systems, the concept of SSB has emerged, which includes Primary Synchronization Signal (PSS), Secondary Synchronization Signal (SSS), PBCH, and Demodulation Reference Signal (DMRS). Namely, the PSS, SSS, PBCH and DMRS are received in four consecutive OFDM symbols and then constitute the SSB, mainly for downlink synchronization.

Referring to fig. 2, fig. 2 shows a schematic diagram of an SSB according to an embodiment of the present disclosure.

In a New Radio (NR) licensed spectrum, the number of OFDM symbols that each slot (slot) may include is determined by a CP (cyclic prefix), and in one example, each slot may include 14 symbols, and how many slots are included in 1 millisecond (ms) is determined by a subcarrier spacing. For example, a subcarrier spacing of 15 kilohertz (KHz) contains 1 slot in 1 ms; when the subcarrier interval is 30KHz, 2 slots are contained in 1 ms; and when the subcarrier interval is 60KHz, 4 slots are contained in 1ms, and so on.

In order to reduce the reference Signal of always-on (always on) and thus reduce the overhead, the embodiment of the present disclosure proposes a Synchronization Signal Block (SSB) in NR. As shown in fig. 2, each SSB occupies 4 consecutive symbols, which are, in order, a primary synchronization signal PSS, a physical broadcast channel PBCH, a secondary synchronization signal SSS, and a PBCH, where 12 Physical Resource Blocks (PRBs) in the middle of the symbol where the SSS is located are SSS, 4 RBs on both sides are PBCH, and some subcarriers in the PBCH are demodulation reference signals DMRS for the PBCH. The subcarrier spacing of the synchronization signal block SSB may be 15KHz, 30KHz, 120KHz, 240KHz, and so on.

In one possible implementation, all synchronization signal blocks may be transmitted in half frames within 5 ms. The embodiments of the present disclosure do not limit in which half frame the SSB is transmitted.

In order to support beam (beam) transmission, when beams exist, each beam needs to transmit an SSB, so that the maximum number of synchronization signal blocks that can be transmitted within 5ms is 4 (when the carrier frequency is below 3 GHz), 8 (when the carrier frequency is 3GHz to 6 GHz), 64 (when the carrier frequency is above 6 GHz), or other, and a plurality of SSBs within 5ms are called a synchronization block set (SSB burst set). The SSB burst set may have a period of 5ms, 10ms, 20ms, 40ms, etc.

Referring to fig. 2, fig. 2 is a schematic diagram illustrating distribution of SSB time-frequency resources according to an embodiment of the disclosure.

As shown in fig. 2, in one example, when the subcarrier spacing of the synchronization signal block is 15KHz, the synchronization signal block time domain distribution is: symbols 2-5 and symbols 8-11 are occupied in every 14 symbols. And when the subcarrier interval is 15KHz, the number of synchronization signal blocks (the maximum number of the SSB candidate time domain resources) is at most 4 or 8, i.e. the symbol index of the first time domain symbol of the SSB candidate time domain resources located in a half frame includes one or more of: {2, 8} +14 × n, n is 0, 1 or 0, 1, 2, 3.

For example, when n is 0, the SSB candidate resources occupy symbols 2-5 and 8-11, and the first time domain symbol is the 2 nd OFDM symbol and the 8 th OFDM symbol in the half frame; when n is 1, the SSB candidate resource occupies symbols 16-19 and symbols 22-25.

In one example, when the subcarrier spacing of the synchronization signal block is 30KHz, the first time domain mapping pattern (pattern) of the synchronization signal block is: symbols 2-5 and symbols 8-11 are occupied in every 14 symbols. And when the subcarrier interval is 30KHz, the number of the synchronization signal blocks is at most 4 or 8, that is, the symbol index of the first time domain symbol of the SSB candidate time domain resource located in a half frame includes one or more of the following: {2, 8} +14 × n, n is 0, 1 or 0, 1, 2, 3.

In one example, when the subcarrier spacing of the synchronization signal block is 30KHz, a second time domain distribution of the synchronization signal block is: symbols 4-7, symbols 8-11, symbols 16-19 and symbols 20-23 are occupied in each 28 symbols. And when the subcarrier interval is 30KHz, the number of the synchronization signal blocks is at most 4 or 8, that is, the symbol index of the first time domain symbol of the SSB candidate time domain resource located in a half frame includes one or more of the following: {4, 8, 16, 20} +28 × n, n is 0 or n is 0, 1.

In one example, when the subcarrier spacing of the synchronization signal block is 120KHz, the synchronization signal block time domain distribution is: symbols 4-7, symbols 8-11, symbols 16-19 and symbols 20-23 are occupied in each 28 symbols. And when the subcarrier interval is 120KHz, the number of the synchronous signal blocks is up to 64, that is, the symbol index of the first time domain symbol of the SSB candidate time domain resource located in the half frame includes one or more of the following: {4, 8, 16, 20} +28 × n, n is 0, 1, 2, 3, 5, 6, 7, 8, 10, 11, 12, 13, 15, 16, 17, 18.

In one example, when the subcarrier spacing of the synchronization signal block is 240KHz, the synchronization signal block time domain distribution is: the symbols 8-11, 12-15, 16-19, 20-23, 32-35, 36-39, 40-43 and 44-47 are occupied in each 56 symbols. And when the subcarrier interval is 240KHz, the number of the synchronization signal blocks is at most 64, that is, the symbol index of the first time domain symbol of the SSB candidate time domain resource located in the half frame includes one or more of the following: {8, 12, 16, 20, 32, 36, 40, 44} +56 × n, n is 0, 1, 2, 3, 5, 6, 7, 8.

The overlapping of the time-frequency resources in the first beam direction and the time-frequency resources in the second beam direction will be described below by taking the subcarrier spacing of 15KHz as an example.

In one example, it is assumed that the time domain resource occupancy symbols 2-5 of the time frequency resources in the first beam direction and 8-11 of the time frequency resources in the second beam direction are, in this case, the time domain resources in the first beam direction and the time domain resources in the second beam direction are not overlapped, and therefore, in the case that the frequency domain resources of the time frequency resources in the first wave number direction and the frequency domain resources of the time frequency resources in the second beam direction are overlapped, the time frequency resources in the first beam direction and the time frequency resources in the second beam direction are overlapped.

Of course, the above description is illustrative, and should not be taken as limiting the disclosure.

The time domain resource for sending the first SSB may be any one of the above descriptions, the time domain resource for sending the second SSB may be a time domain resource other than the time domain resource of the first SSB, and the direction of sending each beem of the SSBs may be the same or different.

The frequency domain resources for transmitting the first SSB and the second SSB may be determined according to actual situations, and the disclosure is not limited.

It should be noted that the SSB is transmitted at a cell level, and although the terminal has access to the cell currently, the cell still transmits the SSB.

In one example, assume that the SSB includes SSB 0-SSBq, where q represents the index of the SSB and q is an integer greater than 1.

In the indication information, it is possible to configure:

the PDSCH transmitted by adopting the SSB0 space characteristic (in English, Spatial Rx parameters, Chinese, space receiving parameters, namely the wave beam direction) does not need to perform rate matching on SSB 1-SSB 7, namely, the time-frequency resource in the wave beam direction of sending SSB0 can be used for transmitting the PDSCH of the physical downlink shared channel (or the time-frequency resource in the wave beam direction of sending SSB 1-SSB 7 can be used for transmitting the PDSCH of the physical downlink shared channel, or the overlapped resource of the time-frequency resource in the wave beam direction of sending SSB0 and the time-frequency resource in the wave beam direction of sending SSB 1-SSB 7 can be used for transmitting the PDSCH of the physical downlink shared channel);

the PDSCH transmitted by using the SSB1 spatial characteristics does not need to perform rate matching on the SSB 2-SSB 8, that is, the time-frequency resource in the beam direction of the SSB1 may be used for transmission of the PDSCH of the physical downlink shared channel (or the time-frequency resource in the beam direction of the SSB 2-SSB 8 may be used for transmission of the PDSCH of the physical downlink shared channel, or the overlapping resource of the time-frequency resource in the beam direction of the SSB1 and the time-frequency resource in the beam direction of the SSB 2-SSB 8 may be used for transmission of the PDSCH of the physical downlink shared channel);

…

the PDSCH transmitted by SSBm spatial characteristics does not need to perform rate matching on SSBa, SSBb, …, where m, a, and b are all less than or equal to q, i.e. the time-frequency resource in the beam direction of transmitting SSBm may be used for transmission of the PDSCH in the physical downlink shared channel (or the time-frequency resource in the beam direction of transmitting SSBa, SSBb …, etc. may be used for transmission of the PDSCH in the physical downlink shared channel, or the overlapping resource of the time-frequency resource in the beam direction of transmitting SSBm and the time-frequency resource in the beam direction of transmitting SSBa, SSBb …, etc. may be used for transmission of the PDSCH in the physical downlink shared channel).

In one example, in the indication information, it may be configured that:

the PDSCH transmitted by using the SSB0 spatial characteristics needs to perform rate matching on the SSB 1-SSB 7, that is, when the time-frequency resource in the beam direction of transmitting the SSB0 overlaps with the time-frequency resource in the beam direction of transmitting the SSB 1-SSB 7, the time-frequency resource in the beam direction of transmitting the SSB0 is not used for PDSCH transmission (or the overlapped time-frequency resource is not used for PDSCH transmission);

the PDSCH transmitted by using the SSB1 spatial characteristics needs to perform rate matching on the SSB 2-SSB 8, that is, when the time-frequency resource in the beam direction of transmitting the SSB1 overlaps with the time-frequency resource in the beam direction of transmitting the SSB 2-SSB 8, the time-frequency resource in the beam direction of transmitting the SSB1 is not used for PDSCH transmission (or the overlapped time-frequency resource is not used for PDSCH transmission);

…

the PDSCH transmitted by using SSBm spatial characteristics needs to perform rate matching on SSBp, SSBq, …, that is, when the time-frequency resource in the beam direction of transmitting SSBm overlaps with the time-frequency resource in the beam directions of transmitting SSBp and SSBq …, the time-frequency resource in the beam direction of transmitting SSB1 is not available for PDSCH transmission (or the overlapping time-frequency resource is not available for PDSCH transmission).

It should be noted that, in the indication information, the base station may indicate whether the PDSCH transmitted by any SSB spatial characteristic needs to perform rate matching on other SSBs, that is, the base station may indicate whether the time-frequency resource of any SSB spatial characteristic can be used for PDSCH transmission.

In a possible implementation manner, after the terminal accesses the cell, the cell may further send an SSB indication through a higher layer signaling or SIB1, for example, SSB-positioninglnburst (a sending position in the SSB burst) may be configured in SIB1 or the higher layer signaling. After receiving the SSB indication, the terminal may determine which time-frequency resources are the time-frequency resources of the SSB according to the SSB indication.

In a possible implementation manner, the time frequency resource in the first beam direction may also be a time frequency resource for transmitting a first downlink reference signal, and the time frequency resources in one or more second beam directions are time frequency resources for transmitting one or more second downlink reference signals.

In one possible embodiment, the downlink reference Signal may include a Channel State indication reference Signal (CSI-RS) for tracking a reference Signal (TRS), a CSIRS for beam management (beam management), and a CSI-RS for acquiring Channel State Information (CSI).

That is, the first downlink reference signal and the second downlink reference signal may both include: the channel state for tracking reference signals TRS indicates reference signals CSI-RS, CSI-RS for beam management, and CSI-RS for acquiring channel state information.

The downlink reference signal may also include other types of reference signals, and the present disclosure is not limited thereto, and may be determined by those skilled in the art as needed.

In one example, the downlink reference signal CSI-RS is assumed to include CSI-RS 0-CSI-RSt, where t denotes an index of the CSI-RS, and t is an integer greater than 1.

In one example, the indication information may be configured to:

the PDSCH transmitted by adopting the CSI-RS0 spatial characteristics needs to perform rate matching on CSI-RS 1-CSI-RS 7, namely, time-frequency resources in the beam direction for transmitting the CSI-RS0 are not used for PDSCH transmission (or time-frequency resources in the beam direction for transmitting the CSI-RS 1-CSI-RS 7 are not used for PDSCH transmission, or overlapped time-frequency resources of the CSI-RS0 and the CSI-RS 1-CSI-RS 7 are not used for PDSCH transmission); or

The PDSCH transmitted by adopting the CSI-RS1 spatial characteristics needs to perform rate matching on CSI-RS 2-CSI-RS 8, namely, time-frequency resources in the beam direction for transmitting the CSI-RS1 are not used for PDSCH transmission (or time-frequency resources in the beam direction for transmitting the CSI-RS 2-CSI-RS 8 are not used for PDSCH transmission, or overlapped time-frequency resources of the CSI-RS1 and the CSI-RS 2-CSI-RS 8 are not used for PDSCH transmission); or

…

The PDSCH transmitted by adopting the CSI-RSa spatial characteristic needs to perform rate matching on CSI-RSb, CSI-RSc and …, namely, time-frequency resources in the beam direction for sending the CSI-RSa are not used for PDSCH transmission (or time-frequency resources in the beam direction for sending the CSI-RSb, the CSI-RSc, … and the like are not used for PDSCH transmission, or overlapped time-frequency resources of the CSI-RSa, the CSI-RSb, the CSI-RSc, … and the like are not used for PDSCH transmission), wherein a, b and c are integers smaller than or equal to t.

In one example, the indication information may be configured to:

the PDSCH transmitted by adopting the CSI-RS0 spatial characteristics does not need to perform rate matching on CSI-RS 1-CSI-RS 7, that is, the time-frequency resource in the beam direction for sending the CSI-RS0 can be used for PDSCH transmission (or the time-frequency resource in the beam direction for sending the CSI-RS 1-CSI-RS 7 can be used for PDSCH transmission, or the overlapped time-frequency resources of the CSI-RS0 and the CSI-RS 1-CSI-RS 7 can be used for PDSCH transmission); or

The PDSCH transmitted by adopting the CSI-RS1 spatial characteristics does not need to perform rate matching on CSI-RS 2-CSI-RS 8, that is, the time-frequency resource in the beam direction for sending the CSI-RS1 can be used for PDSCH transmission (or the time-frequency resource in the beam direction for sending the CSI-RS 2-CSI-RS 8 can be used for PDSCH transmission, or the overlapped time-frequency resources of the CSI-RS1 and the CSI-RS 2-CSI-RS 8 can be used for PDSCH transmission); or

…

The PDSCH transmitted by adopting the CSI-RSa spatial characteristic does not need to perform rate matching on CSI-RSb and CSI-RSc, …, that is, the time-frequency resource in the beam direction for sending the CSI-RSa can be used for PDSCH transmission (or the time-frequency resource in the beam direction for sending CSI-RSb, CSI-RSc, … and the like can be used for PDSCH transmission, or the overlapped time-frequency resources of CSI-RSa, CSI-RSb, CSI-RSc, … and the like can be used for PDSCH transmission), wherein a, b and c are integers smaller than or equal to t.

It should be noted that, in the indication information, the base station may indicate whether the PDSCH transmitted by any CSI-RS spatial characteristic needs to perform rate matching on other CSI-RS, that is, the base station may indicate whether the time-frequency resource of any CSI-RS spatial characteristic can be used for PDSCH transmission.

In a possible implementation manner, after the terminal accesses the cell, the cell may also configure a periodic or semi-continuous or non-periodic reference signal in the higher layer signaling. For example,

a rate matching list (rmilist) may be configured in higher layer signaling, and the rmilist may be used to indicate whether a PDSCH transmitted or sourced using a certain reference signal spatial characteristic is available for PDSCH transmission if it overlaps with other reference signal resources.

Referring to fig. 3, fig. 3 is a flowchart illustrating an information transmitting method according to an embodiment of the present disclosure.

In one possible embodiment, as shown in fig. 3, the method may further include:

step S12, when the indication information is used to indicate that the time-frequency resource in the first beam direction is used for transmitting the PDSCH, the time-frequency resource in the first beam direction is used to transmit the PDSCH.

According to the above method, in the embodiment of the present disclosure, when the indication information is used to indicate that the time-frequency resource in the first beam direction is used for transmitting the PDSCH of the physical downlink shared channel, the time-frequency resource in the first beam direction is used to transmit the PDSCH, so that the PDSCH can be transmitted by using the time-frequency resource in the first beam direction without performing rate matching on the information transmitted by the time-frequency resource in the second beam direction by using the PDSCH transmitted by using the time-frequency resource in the first beam direction.

In one possible embodiment, as shown in fig. 3, the method may further include:

According to the above method, in the embodiment of the present disclosure, when the indication information is used to indicate that the time-frequency resource in the first beam direction is not used for transmission of the PDSCH, the indication indicates to perform rate matching on the information transmitted by the time-frequency resource in the specified second beam direction using the information transmitted by the time-frequency resource in the first beam direction, so that robustness can be improved, and fast fading and slow fading in a wireless environment can be resisted. The information transmitted by using the time-frequency resource in the first beam direction may include an SSB or a downlink reference signal (e.g., CSI-RS), and according to the related art, the information transmitted by using the time-frequency resource in the first beam direction may be rate-matched with the information transmitted by using the time-frequency resource in the second beam direction.

It should be understood that the time-frequency resource in the first beam direction and the time-frequency resource in the second beam direction may be SSB time-frequency resources, CSI-RS time-frequency resources, or others.

Referring to fig. 4, fig. 4 is a flowchart illustrating an information receiving method according to an embodiment of the present disclosure.

The method can be applied to terminal equipment, and the terminal equipment can refer to equipment for carrying out data communication with access network equipment. The terminal device may communicate with one or more core networks via a radio access network. The terminal equipment may be various forms of User Equipment (UE), access terminal equipment, subscriber unit, subscriber station, Mobile Station (MS), remote station, remote terminal equipment, mobile device, user terminal equipment, terminal equipment (terminal equipment), wireless communication device, user agent, or user equipment. The terminal device may also be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device with Wireless communication function, a computing device or other processing device connected to a Wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a future 5G Network or a terminal device in a future evolved Public Land Mobile Network (PLMN), and the like, which is not limited in this embodiment. The terminal device may receive downlink data sent by the access network device through a wireless connection with the access network device.

As shown in fig. 4, the method includes:

step S21, receiving indication information, where the indication information is used to indicate: and under the condition that the time frequency resources in the first wave beam direction are overlapped with the time frequency resources in one or more than two second wave beam directions, whether the time frequency resources in the first wave beam direction are used for transmitting a Physical Downlink Shared Channel (PDSCH) or not is judged.

By the above method, the terminal device of the embodiment of the disclosure may receive the indication information, indicate whether the time-frequency resource in the first beam direction is used for transmission of the PDSCH in the physical downlink shared channel under the condition that the time-frequency resource in the first beam direction overlaps with the time-frequency resource in one or more than two second beam directions, and indicate whether the time-frequency resource in each beam direction is used for transmission of the PDSCH, so that the code rate of data may be reduced, and the transmission success rate may be improved.

Referring to fig. 5, fig. 5 is a flowchart illustrating an information receiving method according to an embodiment of the present disclosure.

In one possible embodiment, as shown in fig. 5, the method further comprises:

step S22, receiving the PDSCH by using the time-frequency resource in the first beam direction when the indication information is used to indicate that the time-frequency resource in the first beam direction is used for transmitting the PDSCH in the physical downlink shared channel.

In one possible embodiment, as shown in fig. 5, the method may further include:

step S23, when the indication information is used to indicate that the time-frequency resource in the first beam direction is not used for transmission of the PDSCH, performing rate matching on the information transmitted by the time-frequency resource in the second beam direction.

It should be understood that the detailed introduction of the information receiving method corresponds to the description of the information sending method, and is not repeated herein.

Referring to fig. 6, fig. 6 shows a block diagram of an information transmitting apparatus according to an embodiment of the present disclosure. The apparatus may be applied in an access network device, as shown in fig. 6, and includes:

a sending module 51, configured to send indication information, where the indication information is used to indicate: and under the condition that the time frequency resources in the first wave beam direction are overlapped with the time frequency resources in one or more than two second wave beam directions, whether the time frequency resources in the first wave beam direction are used for transmitting a Physical Downlink Shared Channel (PDSCH) or not is judged.

Through the above apparatus, the base station of the embodiment of the present disclosure may send the indication information to indicate whether the time-frequency resource in the first beam direction is used for transmission of the PDSCH on the physical downlink shared channel under the condition that the time-frequency resource in the first beam direction overlaps with the time-frequency resource in one or more second beam directions, and may reduce the code rate of data by indicating whether the time-frequency resource in the beam direction where each time-frequency resource overlaps is used for transmission of the PDSCH, thereby improving the transmission success rate.

In a possible implementation, the sending module 51 may be further configured to:

It should be noted that the information sending apparatus is an apparatus corresponding to the information sending method, and for specific description, reference is made to the description of the information sending method before, which is not described herein again.

Referring to fig. 7, fig. 7 is a block diagram of an information receiving apparatus according to an embodiment of the present disclosure.

The apparatus can be applied to a terminal device, as shown in fig. 7, and includes:

a receiving module 61, configured to receive indication information, where the indication information is used to indicate: and under the condition that the time frequency resources in the first wave beam direction are overlapped with the time frequency resources in one or more than two second wave beam directions, whether the time frequency resources in the first wave beam direction are used for transmitting a Physical Downlink Shared Channel (PDSCH) or not is judged.

Through the above apparatus, the terminal device of the embodiment of the present disclosure may receive the indication information, indicate whether the time-frequency resource in the first beam direction is used for transmission of the PDSCH, and indicate whether the time-frequency resource in each beam direction is used for transmission of the PDSCH, so as to reduce the code rate of data, thereby improving the transmission success rate.

In a possible implementation, the receiving module 61 may be further configured to:

It should be noted that the information receiving apparatus is an apparatus corresponding to the information receiving method, and for detailed description, reference is made to the description of the information receiving method before, which is not described herein again.

Referring to fig. 8, fig. 8 is a schematic structural diagram of a mobile communication system according to an embodiment of the present disclosure. The mobile communication system may be a Long Term Evolution (LTE) system, or may be a 5G system, where the 5G system is also called a New Radio (NR) system, or may be a next generation mobile communication technology system of 5G, and this embodiment is not limited thereto.

Optionally, the mobile communication system is suitable for different network architectures, including but not limited to a relay network architecture, a dual link architecture, a Vehicle to internet (V2X) architecture, and the like.

The mobile communication system includes: access network device 220 and terminal device 540.

The Access Network device 520 may be a Base Station (BS), which may also be referred to as a base station device, and is a device deployed in a Radio Access Network (RAN) to provide a wireless communication function. For example, the device providing the base station function in the 2G network includes a Base Transceiver Station (BTS), the device providing the base station function in the 3G network includes a node B (english: NodeB), the device providing the base station function in the 4G network includes an evolved node B (evolved NodeB, eNB), the device providing the base station function in the Wireless Local Area Network (WLAN) is an Access Point (AP), the device providing the base station function in the 5G system is a gNB, and an evolved node B (ng-eNB), the access network device 520 in the embodiment of the present disclosure further includes a device providing the base station function in a future new communication system, and the specific implementation manner of the access network device 520 in the embodiment of the present disclosure is not limited. The access network equipment may also include Home base stations (Home enbs, henbs), relays (Relay), Pico base stations Pico, etc.

The base station controller is a device for managing a base station, such as a Base Station Controller (BSC) in a 2G network, a Radio Network Controller (RNC) in a 3G network, and a device for controlling and managing a base station in a future new communication system.

A network side network (english: network) in the embodiment of the present disclosure is a communication network that provides a communication service for terminal device 540, and includes a base station of a radio access network, a base station controller of the radio access network, and a device on a core network side.

The Core Network may be an Evolved Packet Core (EPC), a 5G Core Network (english: 5G Core Network), or a new Core Network in a future communication system. The 5G Core Network is composed of a set of devices, and implements Access and mobility Management functions (AMF) of functions such as mobility Management, User Plane Functions (UPF) providing functions such as packet routing forwarding and Quality of Service (QoS) Management, Session Management Functions (SMF) providing functions such as Session Management, IP address allocation and Management, and the like. The EPC may be composed of an MME providing functions such as mobility management, Gateway selection, etc., a Serving Gateway (S-GW) providing functions such as packet forwarding, etc., and a PDN Gateway (P-GW) providing functions such as terminal address allocation, rate control, etc.

Access network device 520 and terminal device 540 establish a wireless connection over the air. Optionally, the wireless air interface is a wireless air interface based on a 5G standard, for example, the wireless air interface is NR; or, the wireless air interface may also be a wireless air interface based on a 5G next generation mobile communication network technology standard; alternatively, the wireless air interface may be a wireless air interface based on the 4G standard (LTE system). Access network device 520 may receive the uplink data sent by terminal device 540 via the wireless connection.

Terminal device 540 may refer to a device in data communication with access network device 520. Terminal device 540 may communicate with one or more core networks via a radio access network. Terminal equipment 540 may be various forms of User Equipment (UE), access terminal equipment, subscriber unit, subscriber station, Mobile Station (MS), remote station, remote terminal equipment, mobile device, user terminal equipment, terminal equipment (terminal equipment), wireless communication device, user agent, or user equipment. The terminal device 540 may also be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a future 5G Network or a terminal device in a future evolved Public Land Mobile Network (PLMN), and the like, which is not limited in this embodiment. Terminal device 540 may receive downlink data sent by access network device 520 via a wireless connection with access network device 520.

It should be noted that, when the mobile communication system shown in fig. 8 adopts a 5G system or a 5G next generation mobile communication technology system, the above network elements may have different names in the 5G system or the 5G next generation mobile communication technology system, but have the same or similar functions, and the embodiment of the present disclosure is not limited thereto.

It should be noted that, in the mobile communication system shown in fig. 8, a plurality of access network devices 520 and/or a plurality of terminal devices 540 may be included, and fig. 8 illustrates one access network device 520 and one terminal device 540, but the embodiment of the present disclosure does not limit this.

Having described embodiments of the present disclosure, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen in order to best explain the principles of the embodiments, the practical application, or improvements made to the technology in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. An information sending method, characterized in that the method comprises:

2. The method of claim 1, wherein the time-frequency resources in the first beam direction are time-frequency resources for transmitting a first Synchronization Signal Block (SSB), and wherein the time-frequency resources in the one or more second beam directions are time-frequency resources for transmitting one or more second SSBs.

3. The method of claim 1, wherein the time frequency resources in the first beam direction are time frequency resources for transmitting a first downlink reference signal, and the time frequency resources in the one or more second beam directions are time frequency resources for transmitting one or more second downlink reference signals.

4. The method of claim 3, wherein the first downlink reference signal and the second downlink reference signal comprise: the channel state for tracking reference signals TRS indicates reference signals CSI-RS, CSI-RS for beam management, and CSI-RS for acquiring channel state information.

5. The method of claim 1, further comprising:

6. The method of claim 1, further comprising:

7. An information receiving method, characterized in that the method comprises:

8. The method of claim 7, wherein the time-frequency resources in the first beam direction are time-frequency resources for transmitting a first Synchronization Signal Block (SSB), and wherein the time-frequency resources in the one or more second beam directions are time-frequency resources for transmitting one or more second SSBs.

9. The method of claim 7, wherein the time frequency resources in the first beam direction are time frequency resources for transmitting a first downlink reference signal, and the time frequency resources in the one or more second beam directions are time frequency resources for transmitting one or more second downlink reference signals.

10. The method of claim 9, wherein the first downlink reference signal and the second downlink reference signal comprise: the channel state for tracking reference signals TRS indicates reference signals CSI-RS, CSI-RS for beam management, and CSI-RS for acquiring channel state information.

11. The method of claim 7, further comprising:

12. The method of claim 7, further comprising:

13. An information transmission apparatus, characterized in that the apparatus comprises:

14. An information receiving apparatus, characterized in that the apparatus comprises:

15. A computer device, characterized in that the computer device comprises: a processor; a memory for storing processor-executable instructions;

wherein the processor is configured to:

-performing an information transmission method according to any of claims 1-6, or-performing an information reception method according to any of claims 7-12.

16. A non-transitory computer-readable storage medium having stored thereon computer program instructions, wherein the computer program instructions, when executed by a processor, implement the information transmitting method according to any one of claims 1 to 6 or the information receiving method according to any one of claims 7 to 12.