CN110677912B

CN110677912B - Information sending method and device, information receiving method and device

Info

Publication number: CN110677912B
Application number: CN201910918276.0A
Authority: CN
Inventors: 周欢; 徐志昆
Original assignee: Beijing Ziguang Zhanrui Communication Technology Co Ltd
Current assignee: Beijing Ziguang Zhanrui Communication Technology Co Ltd
Priority date: 2019-09-26
Filing date: 2019-09-26
Publication date: 2023-08-15
Anticipated expiration: 2039-09-26
Also published as: CN110677912A

Abstract

The disclosure relates to an information sending method and device, and an information receiving method and device, wherein the information sending method comprises the following steps: transmitting indication information, wherein the indication information is used for indicating: in case that the time-frequency resources of the first beam direction overlap with the time-frequency resources of one or more second beam directions, whether the time-frequency resources of the first beam direction are used for transmission of the physical downlink shared channel PDSCH. Whether the time-frequency resource indication of the beam direction overlapped with each time-frequency resource is used for transmitting the PDSCH or not can reduce the code rate of the data, thereby improving the transmission success rate.

Description

Information sending method and device, information receiving method and device

Technical Field

The disclosure relates to the field of communication technologies, and in particular, to an information sending method and device, and an information receiving method and device.

Background

Before the base station communicates with the terminal device, uplink synchronization and downlink synchronization are required to enable the terminal device to access the cell. When the terminal is accessed to the cell, the information can be received from the base station by using the appointed time-frequency resource, however, in the related technology, 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 proposes an information transmission method including:

transmitting indication information, wherein the indication information is used for indicating: in case that the time-frequency resources of the first beam direction overlap with the time-frequency resources of one or more second beam directions, whether the time-frequency resources of the first beam direction are used for transmission of the physical downlink shared channel PDSCH.

In one possible implementation, the time-frequency resource of the first beam direction is a time-frequency resource for transmitting the first synchronization signal block SSB, and the time-frequency resource of the one or more second beam directions is a time-frequency resource for transmitting the one or more second SSBs.

In one possible implementation manner, the time-frequency resource of the first beam direction is a time-frequency resource for transmitting a first downlink reference signal, and the time-frequency resource of the 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 the reference signal TRS indicates a reference signal CSI-RS, a CSI-RS for beam management, and a 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 of the first beam direction under the condition that the indication information is used for indicating that the time-frequency resource of the first beam direction is used for transmitting the PDSCH of 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 beam direction is not used for transmitting the physical downlink shared channel PDSCH, the indication information is used for carrying out rate matching on the information transmitted by the time-frequency resource in the second 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: in case that the time-frequency resources of the first beam direction overlap with the time-frequency resources of one or more second beam directions, whether the time-frequency resources of the first beam direction are used for transmission of the physical downlink shared channel PDSCH.

In one possible embodiment, the method further comprises:

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

In one possible embodiment, the method further comprises:

and carrying out rate matching on the information transmitted by the time-frequency resources in the designated second beam direction by utilizing the information transmitted by the time-frequency resources in the first beam direction under the condition that the indication information is used for indicating that the time-frequency resources in the first beam direction are not used for transmitting the physical downlink shared channel PDSCH.

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

the sending module is used for sending indication information, wherein the indication information is used for indicating: in case that the time-frequency resources of the first beam direction overlap with the time-frequency resources of one or more second beam directions, whether the time-frequency resources of the first beam direction are used for transmission of the physical downlink shared channel PDSCH.

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

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

the receiving module is used for receiving indication information, and the indication information is used for indicating: in case that the time-frequency resources of the first beam direction overlap with the time-frequency resources of one or more second beam directions, whether the time-frequency resources of the first beam direction are used for transmission of the physical downlink shared channel PDSCH.

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

According to another aspect of the present disclosure, there is provided a 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 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 transmission method, or the information reception method.

By the method, the base station in the embodiment of the disclosure can send the indication information, and indicates whether the time-frequency resource in the first beam direction is used for transmitting the physical downlink shared channel PDSCH or not 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 by indicating whether the time-frequency resource in the beam direction overlapping each time-frequency resource is used for transmitting the PDSCH or not, the code rate of data can be reduced, 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 present disclosure and together with the description, serve to explain the principles of the disclosure.

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

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

Fig. 3 shows a flowchart of an information transmission 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 illustrates a schematic structure of a mobile communication system according to an embodiment of the present disclosure.

Detailed Description

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

The word "exemplary" is used 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.

In addition, numerous specific details are set forth in the following detailed description 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 well known to those skilled in the art have not been described in detail in order not to obscure the present disclosure.

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

The method can be applied to access network equipment, which can be a Base Station (BS), also called base station equipment, and is a device deployed in a radio access network (Radio Access Network, RAN) to provide a wireless communication function. For example, the device for providing a base station function in the 2G network includes a base radio transceiver station (base transceiver station, BTS), the device for providing a base station function in the 3G network includes a node B (english: nodeB), the device for providing a base station function in the 4G network includes an evolved NodeB (eNB), the device for providing a base station function in the wireless local area network (wireless local area networks, WLAN) is an Access Point (AP), the device for providing a base station function in the 5G system is a gNB, and the device for providing a base station function in the future new communication system is a node B (english: ng-eNB), and the access network device in the embodiments of the present disclosure may further include a device for providing a base station function in the future new communication system, and the specific implementation of the access network device is not limited. The access network device may also include Home base stations (henbs), relays (Relay), pico base stations Pico, etc.

As shown in fig. 1, the method includes:

step S11, sending indication information, wherein the indication information is used for indicating: in case the time-frequency resources of the first beam direction overlap with the time-frequency resources of one or more second beam directions, whether the time-frequency resources of the first beam direction are used for transmission of a physical downlink shared channel (physical downlink share channel, PDSCH).

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

In a possible implementation manner, the time-frequency resources may include time-domain resources and frequency-domain resources, and overlapping the time-frequency resources of the first beam direction with the time-frequency resources of the 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 in frequency domain resources.

In a 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 overlapping the time-frequency resources of the first beam direction with the time-frequency resources of the one or more 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 above-described "overlap" may include both partial overlap and full overlap.

In the case where there is a partial or complete overlap of the time-frequency resources of the first beam direction with the time-frequency resources of one or more second beam directions, the base station may indicate, through the indication information, whether the overlapping time-frequency resources may be used for PDSCH transmission.

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

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

In the related art, the terminal device realizes synchronization with the main system message by broadcasting the synchronization signal sent by the access network device. In the NR system, the concept of SSB including a primary synchronization sequence (Primary Synchronization Signal, PSS), a secondary synchronization sequence (Secondary Synchronization Signal, SSS), PBCH, and demodulation reference signals (Demodulation Reference Signal, DMRS) appears. I.e. PSS, SSS, PBCH and DMRS are received in four consecutive OFDM symbols and then constitute 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 the New Radio (NR) licensed spectrum, the number of OFDM symbols that each slot (slot) may include is determined by a CP (cyclic prefix), in one example, each slot may include 14 symbols, and how many slots are contained within 1 millisecond (ms) is determined by a subcarrier spacing. For example, when the subcarrier spacing is 15 kilohertz (KHz), 1 slot is contained in 1 ms; when the subcarrier interval is 30KHz, 2 slots are contained in 1 ms; and the subcarrier spacing is 60KHz, 4 slots are contained in 1ms, and so on.

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

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 at which half frame SSB is transmitted.

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

Referring to fig. 2, fig. 2 is a schematic diagram illustrating a 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 blocks is 15KHz, the synchronization signal blocks are time domain distributed as: every 14 symbols occupy 2 to 5 symbols and 8 to 11 symbols. And when the subcarrier spacing is 15KHz, the number of the synchronous signal blocks (the maximum number of the SSB candidate time domain resources) is 4 or 8 at maximum, that is, the symbol index of the first time domain symbol of the SSB candidate time domain resources in the field includes one or more of the following: {2,8} +14 x n, n is 0,1 or 0,1,2,3.

For example, when n is 0, the SSB candidate resources occupy symbols 2 to 5 and symbols 8 to 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, SSB candidate resources occupy 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: every 14 symbols occupy 2 to 5 symbols and 8 to 11 symbols. And when the subcarrier spacing is 30KHz, the number of the synchronization signal blocks is 4 or 8 at maximum, that is, the symbol index of the first time domain symbol of the SSB candidate time domain resource in the field includes one or more of the following: {2,8} +14 x n, n is 0,1 or 0,1,2,3.

In one example, when the subcarrier spacing of the synchronization signal block is 30KHz, the second time domain distribution of the synchronization signal block is: every 28 symbols occupy 4 to 7 symbols, 8 to 11 symbols, 16 to 19 symbols and 20 to 23 symbols. And when the subcarrier spacing is 30KHz, the number of the synchronization signal blocks is 4 or 8 at maximum, that is, the symbol index of the first time domain symbol of the SSB candidate time domain resource in the field 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 blocks is 120KHz, the synchronization signal blocks are time domain distributed as: every 28 symbols occupy 4 to 7 symbols, 8 to 11 symbols, 16 to 19 symbols and 20 to 23 symbols. And when the subcarrier spacing is 120KHz, the number of the synchronous signal blocks is 64 at maximum, that is, the symbol index of the first time domain symbol of the SSB candidate time domain resource in the field 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 blocks is 240KHz, the synchronization signal blocks are time domain distributed as: each 56 symbols occupy 8 to 11, 12 to 15, 16 to 19, 20 to 23, 32 to 35, 36 to 39, 40 to 43 and 44 to 47. And when the subcarrier spacing 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 in the field includes one or more of the following: {8, 12, 16, 20, 32, 36, 40, 44} +56 x 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 a 15KHz subcarrier spacing as an example.

In one example, it is assumed that the time domain resources of the time-frequency resources of the first beam direction occupy symbols 2 to 5 and the time domain resources of the time-frequency resources of the second beam direction occupy symbols 8 to 11, in which case the time domain resources of the first beam direction do not overlap with the time domain resources of the second beam direction, and therefore, in case the frequency domain resources of the time-frequency resources of the first wave number direction overlap with the frequency domain resources of the time-frequency resources of the second beam direction, the time-frequency resources of the first beam direction overlap with the time-frequency resources of the second beam direction.

Of course, the foregoing description is exemplary and should not be considered as limiting the present disclosure.

The time domain resource for transmitting the first SSB may be any one of the above descriptions, the time domain resource for transmitting the second SSB may be a time domain resource other than the time domain resource of the first SSB, and the direction of each of the beems for transmitting the SSB 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, which is not limited in the disclosure.

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

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

In the indication information, it is possible to configure:

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

The PDSCH transmitted by adopting the spatial characteristics of SSB1 does not need to perform rate matching on SSB 2-SSB 8, i.e. the time-frequency resource in the beam direction of transmitting SSB1 can be used for the transmission of the PDSCH of the physical downlink shared channel (or the time-frequency resource in the beam direction of transmitting SSB 2-SSB 8 can be used for the transmission of the PDSCH of the physical downlink shared channel, or the overlapping resource of the time-frequency resource in the beam direction of transmitting SSB1 and the time-frequency resource in the beam direction of transmitting SSB 2-SSB 8 can be used for the transmission of the PDSCH of the physical downlink shared channel);

…

the PDSCH transmitted by using the SSBm spatial characteristics does not need to perform rate matching on SSBa, SSBb, …, where m, a, 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 of 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 of 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 of the physical downlink shared channel).

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

when the PDSCH transmitted by adopting the spatial characteristics of SSB0 needs to perform rate matching on SSB1 to SSB7, that is, when the time-frequency resources in the beam direction of transmitting SSB0 overlap with the time-frequency resources in the beam directions of transmitting SSB1 to SSB7, the time-frequency resources in the beam direction of transmitting SSB0 are not available for PDSCH transmission (or the overlapping time-frequency resources are not available for PDSCH transmission);

When the PDSCH transmitted by adopting the spatial characteristics of SSB1 needs to perform rate matching on SSB2 to SSB8, that is, when the time-frequency resources in the beam direction of transmitting SSB1 overlap with the time-frequency resources in the beam directions of transmitting SSB2 to SSB8, the time-frequency resources in the beam direction of transmitting SSB1 are not available for PDSCH transmission (or the overlapping time-frequency resources are not available for PDSCH transmission);

…

PDSCH transmitted by using SSBm spatial characteristics needs to perform rate matching on SSBp, SSBq, …, that is, when time-frequency resources in the beam direction of transmitting SSBm overlap with time-frequency resources in the beam directions of transmitting SSBp, SSBq …, the time-frequency resources in the beam direction of transmitting SSB1 are not available for PDSCH transmission (or the overlapping time-frequency resources are 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 one SSB spatial characteristic needs to be rate-matched to other SSBs, that is, the base station may indicate whether the time-frequency resource of any one SSB spatial characteristic may be used for PDSCH transmission.

In one possible implementation, after the terminal accesses the cell, the cell may also send an SSB indication through higher layer signaling or SIB1, e.g., SSB-location infurst (a sending location in SSB burst) may be configured in SIB1 or higher layer signaling. After receiving the SSB indication, the terminal may determine, according to the SSB indication, which time-frequency resources are SSB time-frequency resources.

In one possible implementation manner, the time-frequency resource of the first beam direction may also be a time-frequency resource for transmitting a first downlink reference signal, and the time-frequency resource of the 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 downlink reference signals may include a channel state indication reference signal (Channel State Information Reference Signal, CSI-RS) for tracking reference signals (Tracking Reference Signal, TRS), a CSIRS for beam management (beam management), and a CSI-RS for acquiring channel state information (Channel State Information, CSI).

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

The downlink reference signals may also include other types of reference signals, which are not limited in this disclosure and may be determined as desired by one skilled in the art.

In one example, it is assumed that the downlink reference signal CSI-RS includes CSI-RS0 to CSI-RSt, where t represents 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 adopting the space characteristic transmission of the CSI-RS0 needs to perform rate matching on the CSI-RS 1-CSI-RS 7, namely, the time-frequency resource in the beam direction of transmitting the CSI-RS0 is not used for PDSCH transmission (or the time-frequency resource in the beam direction of transmitting the CSI-RS 1-CSI-RS 7 is not used for PDSCH transmission, or the overlapped time-frequency resource of the CSI-RS0 and the CSI-RS 1-CSI-RS 7 is not used for PDSCH transmission); or (b)

The PDSCH adopting the space characteristic transmission of the CSI-RS1 needs to perform rate matching on the CSI-RS 2-CSI-RS 8, namely, the time-frequency resource of the beam direction of the transmission CSI-RS1 is not used for PDSCH transmission (or the time-frequency resource of the beam direction of the transmission CSI-RS 2-CSI-RS 8 is not used for PDSCH transmission, or the overlapped time-frequency resource of the CSI-RS1 and the CSI-RS 2-CSI-RS 8 is not used for PDSCH transmission); or (b)

…

PDSCH transmitted with spatial characteristics of CSI-RSa requires rate matching for CSI-RSb, CSI-RSc, …, i.e. the time-frequency resources of beam direction transmitting CSI-RSa are not used for PDSCH transmission (or the time-frequency resources of beam direction transmitting CSI-RSb, CSI-RSc, …, etc. are not used for PDSCH transmission, or the overlapping time-frequency resources of CSI-RSa and CSI-RSb, CSI-RSc, …, etc. are not used for PDSCH transmission), where a, b, c are integers less than or equal to t.

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

the PDSCH adopting the space characteristic transmission of the CSI-RS0 does not need to carry out rate matching on the CSI-RS 1-CSI-RS 7, namely, the time-frequency resource of the beam direction of the transmission CSI-RS0 can be used for PDSCH transmission (or the time-frequency resource of the beam direction of the transmission CSI-RS 1-CSI-RS 7 can be used for PDSCH transmission, or the overlapped time-frequency resource of the CSI-RS0 and the CSI-RS 1-CSI-RS 7 can be used for PDSCH transmission); or (b)

The PDSCH adopting the space characteristic transmission of the CSI-RS1 does not need to perform rate matching on the CSI-RS 2-CSI-RS 8, namely, the time-frequency resource of the beam direction of the transmission CSI-RS1 can be used for PDSCH transmission (or the time-frequency resource of the beam direction of the transmission CSI-RS 2-CSI-RS 8 can be used for PDSCH transmission, or the overlapped time-frequency resource of the CSI-RS1 and the CSI-RS 2-CSI-RS 8 can be used for PDSCH transmission); or (b)

…

PDSCH transmitted with spatial characteristics of CSI-RSa does not need to rate-match CSI-RSb, CSI-RSc, …, i.e. time-frequency resources transmitting beam direction of CSI-RSa may be used for PDSCH transmission (or time-frequency resources transmitting beam direction of CSI-RSb, CSI-RSc, …, etc. may be used for PDSCH transmission, or overlapping time-frequency resources of CSI-RSa and CSI-RSb, CSI-RSc, …, etc. may be used for PDSCH transmission), where a, b, c are integers less 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 one 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 one CSI-RS spatial characteristic may be used for PDSCH transmission.

In one possible implementation, after the terminal accesses the cell, the cell may also configure periodic or semi-persistent or non-periodic reference signals in higher layer signaling. For example, the number of the cells to be processed,

a rate matching list (RMlist) may be configured at a higher layer signaling, and the RMlist may be used to indicate whether PDSCH transmissions using or sourced by a certain reference signal spatial characteristic are available for PDSCH transmissions if these overlap with other reference signal resources.

Referring to fig. 3, fig. 3 shows a flowchart of an information transmission method according to an embodiment of the present disclosure.

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

in step S12, when the indication information is used to indicate that the time-frequency resource of the first beam direction is used for transmitting the physical downlink shared channel PDSCH, the PDSCH is transmitted using the time-frequency resource of the first beam direction.

According to the above method, in the embodiment of the disclosure, when the indication information is used to indicate that the time-frequency resource of the first beam direction is used for transmitting the PDSCH of the physical downlink shared channel, the PDSCH is transmitted by using the time-frequency resource of the first beam direction, so that the PDSCH can be transmitted by using the time-frequency resource of the first beam direction, and the PDSCH transmitted by using the time-frequency resource of the first beam direction is not required to perform rate matching on the information transmitted by the time-frequency resource of the second beam direction.

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

in step S13, 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 physical downlink shared channel PDSCH, the indication information is used to perform rate matching on the information transmitted by the time-frequency resource in the second beam direction.

According to the method, in the embodiment of the disclosure, when the indication information is used for indicating that the time-frequency resource of the first beam direction is not used for transmitting the physical downlink shared channel PDSCH, the information transmitted by the time-frequency resource of the first beam direction is indicated to perform rate matching on the information transmitted by the time-frequency resource of the specified second 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 of the first beam direction may include SSB or downlink reference signal (e.g., CSI-RS), and the information transmitted by using the time-frequency resource of the first beam direction and the downlink reference signal of the first beam direction may be rate matched according to the related art.

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

Referring to fig. 4, fig. 4 shows a flowchart of 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 device may be various forms of User Equipment (UE), access terminal devices, subscriber units, subscriber stations, mobile Stations (MS), remote stations, remote terminal devices, mobile devices, user terminal devices, terminal devices (english: terminal equipment), wireless communication devices, user agents, or user equipment. The terminal device may also be a cellular phone, a cordless phone, a session initiation protocol (Session Initiation Protocol, SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, a personal digital assistant (Personal Digital Assistant, PDA), a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, a car-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 (Public Land Mobile Network, PLMN), etc., which is not limited by this embodiment. The terminal equipment can receive downlink data sent by the access network equipment through wireless connection with the access network equipment.

As shown in fig. 4, the method includes:

step S21, receiving indication information, where the indication information is used to indicate: in case that the time-frequency resources of the first beam direction overlap with the time-frequency resources of one or more second beam directions, whether the time-frequency resources of the first beam direction are used for transmission of the physical downlink shared channel PDSCH.

By the method, the terminal equipment of the embodiment of the disclosure can receive the indication information, and indicate whether the time-frequency resource of the first beam direction is used for transmitting the Physical Downlink Shared Channel (PDSCH) or not under the condition that the time-frequency resource of the first beam direction is overlapped with the time-frequency resource of one or more than two second beam directions, and the code rate of data can be reduced by indicating whether the time-frequency resource of each beam direction is used for transmitting the PDSCH or not, so that the transmission success rate is improved.

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

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

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

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

in 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 physical downlink shared channel PDSCH, rate matching is performed on the information transmitted by the time-frequency resource in the specified second beam direction by using the information transmitted by the time-frequency resource in the first beam direction.

It should be understood that, the specific description of the information receiving method corresponds to the description of the information sending method, and will not be 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, where the apparatus includes:

a sending module 51, configured to send indication information, where the indication information is used to indicate: in case that the time-frequency resources of the first beam direction overlap with the time-frequency resources of one or more second beam directions, whether the time-frequency resources of the first beam direction are used for transmission of the physical downlink shared channel PDSCH.

Through the above device, the base station in the embodiment of the present disclosure may send the indication information, which indicates whether the time-frequency resource in the first beam direction is used for transmission of the physical downlink shared channel PDSCH in the case that the time-frequency resource in the first beam direction overlaps with the time-frequency resource in one or more second beam directions, and by indicating whether the time-frequency resource in the beam direction overlapping each time-frequency resource is used for transmission of the PDSCH, the code rate of data may be reduced, thereby improving the transmission success rate.

In one possible implementation, the sending module 51 may also be configured to:

It should be noted that, the information sending apparatus is an apparatus corresponding to the information sending method, and the detailed description thereof refers to the previous description of the information sending method, which is not repeated herein.

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

The apparatus may be applied to a terminal device, as shown in fig. 7, where the apparatus includes:

a receiving module 61, configured to receive indication information, where the indication information is used to indicate: in case that the time-frequency resources of the first beam direction overlap with the time-frequency resources of one or more second beam directions, whether the time-frequency resources of the first beam direction are used for transmission of the physical downlink shared channel PDSCH.

Through the device, the terminal equipment of the embodiment of the disclosure can receive the indication information, and indicate whether the time-frequency resource of the first beam direction is used for transmitting the Physical Downlink Shared Channel (PDSCH) or not under the condition that the time-frequency resource of the first beam direction is overlapped with the time-frequency resource of one or more than two second beam directions, and the code rate of data can be reduced by indicating whether the time-frequency resource of each beam direction is used for transmitting the PDSCH or not, so that the transmission success rate is improved.

In one possible implementation, the receiving module 61 may also be configured to:

It should be noted that, the information receiving apparatus is an apparatus corresponding to the information receiving method, and the detailed description thereof refers to the previous description of the information receiving method, which is not repeated herein.

Referring to fig. 8, fig. 8 shows a schematic diagram of a mobile communication system according to an embodiment of the present disclosure. The mobile communication system may be a long term evolution (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, which is not limited in this embodiment.

Optionally, the mobile communication system is applicable to different network architectures including, but not limited to, a relay network architecture, a dual link architecture, a car networking (Vehicle to Everything, V2X) architecture, etc.

The mobile communication system includes: an access network device 520 and a 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 (Radio Access Network, RAN) to provide wireless communication functions. For example, the device for providing a base station function in the 2G network includes a base radio transceiver station (base transceiver station, BTS), the device for providing a base station function in the 3G network includes a node B (english: nodeB), the device for providing a base station function in the 4G network includes an evolved NodeB (eNB), the device for providing a base station function in the wireless local area network (wireless local area networks, WLAN) is an Access Point (AP), the device for providing a base station function in the 5G system is a gNB, and the device for providing a base station function in the future new communication system is a continuously evolved NodeB (english: ng-eNB), and the access network device 520 in the embodiment of the present disclosure further includes a device for providing a base station function in the future new communication system, etc., and the specific implementation of the access network device 520 is not limited. The access network device may also include Home base stations (henbs), relays (Relay), pico base stations Pico, etc.

The base station controller is a device for managing base stations, such as a base station controller (base station controller, BSC) in a 2G network, a radio network controller (radio network controller, RNC) in a 3G network, and may also be a device for controlling and managing base stations in a new communication system in the future.

The network side network (english: network) in the embodiment of the present disclosure is a communication network that provides a communication service for the 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 Network (evolved packet Core, EPC), a 5G Core Network (english: 5G Core Network), or may be a new type of Core Network in future communication systems. The 5GCore Network is composed of a set of devices, and implements an access and mobility management function (Access and Mobility Management Function, AMF) for mobility management and the like, a user plane function (User Plane Function, UPF) for providing packet routing forwarding and quality of service (Quality of Service, qoS) management and the like, a session management function (Session Management Function, SMF) for providing session management, IP address allocation and management and the like. The EPC may be composed of an MME providing functions of mobility management, gateway selection, etc., a Serving Gateway (S-GW) providing functions of packet forwarding, etc., and a PDN Gateway (P-GW) providing functions of terminal address allocation, rate control, etc.

The access network device 520 and the terminal device 540 establish a wireless connection over a wireless air interface. Optionally, the wireless air interface is a wireless air interface based on 5G standard, such as the wireless air interface is NR; or, the wireless air interface can also be a wireless air interface based on the technical standard of the next generation mobile communication network of 5G; alternatively, the wireless air interface may be a wireless air interface based on the 4G standard (LTE system). The access network device 520 may receive the uplink data sent by the terminal device 540 over a wireless connection.

Terminal device 540 may refer to a device in data communication with access network device 520. The terminal device 540 may communicate with one or more core networks via a radio access network. The terminal device 540 may be various forms of User Equipment (UE), access terminal devices, subscriber units, subscriber stations, mobile Stations (MS), remote stations, remote terminal devices, mobile devices, user terminal devices, terminal devices (english: terminal equipment), wireless communication devices, user agents, or user equipment. The terminal device 540 may also be a cellular phone, a cordless phone, a session initiation protocol (Session Initiation Protocol, SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, a personal digital assistant (Personal Digital Assistant, PDA), a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, an in-vehicle device, a wearable device, a terminal device in a future 5G network or a terminal device in a future evolved public land mobile network (Public Land Mobile Network, PLMN), etc., which is not limited by this embodiment. The terminal device 540 may receive downlink data sent by the access network device 520 through a wireless connection with the access network device 520.

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

Another point to be noted is 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 one access network device 520 and one terminal device 540 are illustrated in fig. 8, but the embodiment of the present disclosure is not limited thereto.

The foregoing description of the embodiments of the present disclosure has been presented for purposes of illustration and description, and is not intended to be exhaustive or limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the various embodiments described. The terminology used herein was chosen in order to best explain the principles of the embodiments, the practical application, or the improvement of technology in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. An information transmission method, the method comprising:

transmitting indication information, wherein the indication information is used for indicating: in the case that the time-frequency resource of the first beam direction overlaps with the time-frequency resource of one or more second beam directions, whether the time-frequency resource of the first beam direction is used for transmission of the physical downlink shared channel PDSCH or not, the time-frequency resource of the first beam direction is the time-frequency resource for transmission of the first synchronization signal block SSB, and the time-frequency resource of the one or more second beam directions is the time-frequency resource for transmission of the one or more second SSBs.

2. The method according to claim 1, wherein the method further comprises:

3. The method according to claim 1, wherein the method further comprises:

4. An information receiving method, the method comprising:

receiving indication information, wherein the indication information is used for indicating: in the case that the time-frequency resource of the first beam direction overlaps with the time-frequency resource of one or more second beam directions, whether the time-frequency resource of the first beam direction is used for transmission of the physical downlink shared channel PDSCH or not, the time-frequency resource of the first beam direction is the time-frequency resource for transmission of the first synchronization signal block SSB, and the time-frequency resource of the one or more second beam directions is the time-frequency resource for transmission of the one or more second SSBs.

5. The method according to claim 4, wherein the method further comprises:

6. The method according to claim 4, wherein the method further comprises:

7. An information transmitting apparatus, characterized in that the apparatus comprises:

the sending module is used for sending indication information, wherein the indication information is used for indicating: in the case that the time-frequency resource of the first beam direction overlaps with the time-frequency resource of one or more second beam directions, whether the time-frequency resource of the first beam direction is used for transmission of the physical downlink shared channel PDSCH or not, the time-frequency resource of the first beam direction is the time-frequency resource for transmission of the first synchronization signal block SSB, and the time-frequency resource of the one or more second beam directions is the time-frequency resource for transmission of the one or more second SSBs.

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

the receiving module is used for receiving indication information, and the indication information is used for indicating: in the case that the time-frequency resource of the first beam direction overlaps with the time-frequency resource of one or more second beam directions, whether the time-frequency resource of the first beam direction is used for transmission of the physical downlink shared channel PDSCH or not, the time-frequency resource of the first beam direction is the time-frequency resource for transmission of the first synchronization signal block SSB, and the time-frequency resource of the one or more second beam directions is the time-frequency resource for transmission of the one or more second SSBs.

9. A computer device, the computer device comprising: a processor; a memory for storing processor-executable instructions;

wherein the processor is configured to:

an information transmission method according to any one of claims 1 to 3 or an information reception method according to any one of claims 4 to 6 is performed.

10. A non-transitory computer readable storage medium having stored thereon computer program instructions, which when executed by a processor, implement the information transmission method of any of claims 1-3 or perform the information reception method of any of claims 4-6.