WO2022068875A1

WO2022068875A1 - Beam information indication method and apparatus, beam information acquisition method and apparatus, and terminal and network side device

Info

Publication number: WO2022068875A1
Application number: PCT/CN2021/121692
Authority: WO
Inventors: 杨宇
Original assignee: 维沃移动通信有限公司
Priority date: 2020-09-30
Filing date: 2021-09-29
Publication date: 2022-04-07
Also published as: CN114337755A

Abstract

Disclosed are a beam information indication method and apparatus, a beam information acquisition method and apparatus, and a terminal and a network side device, which belong to the technical field of communications. The beam information acquisition method comprises: acquiring first indication information, wherein the first indication information is used for indicating beam information of at least two terminals.

Description

Beam information indication and acquisition method, device, terminal and network side equipment

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims priority to Chinese Patent Application No. 202011063387.7 filed in China on September 30, 2020, the entire contents of which are incorporated herein by reference.

technical field

The present application relates to the field of communication technologies, and in particular, to a beam information indication and acquisition method, apparatus, terminal, and network side equipment.

Background technique

After beam measurement and beam reporting, the network can make beam indications for downlink and uplink channels or reference signals for establishing beam links between the network and user equipment (User Equipment, UE, also known as terminal) UE , to realize the transmission of channel or reference signal. However, in the related art, the beam indication mechanisms for various channels and reference signals are not the same, and more control signaling is required, resulting in a larger signaling overhead.

SUMMARY OF THE INVENTION

The embodiments of the present application provide a beam information indication and acquisition method, apparatus, terminal, and network side equipment, which can solve the problem that in the related art, the beam indication mechanisms for various channels and reference signals are not the same, and more control information is required. order, resulting in the problem of large signaling overhead.

In a first aspect, a method for acquiring beam information is provided, which is applied to a terminal, and the method includes:

Obtain first indication information, where the first indication information is used to indicate beam information of at least two terminals.

In a second aspect, a beam information acquisition apparatus is provided, applied to a terminal, including:

The first obtaining module is configured to obtain first indication information, where the first indication information is used to indicate beam information of at least two terminals.

In a third aspect, a beam information indication method is provided, applied to a network side device, and the method includes:

Send first indication information, where the first indication information is used to indicate beam information of at least two terminals.

In a fourth aspect, a beam information indication device is provided, applied to a network side device, including:

The first sending module is configured to send first indication information, where the first indication information is used to indicate beam information of at least two terminals.

In a fifth aspect, a terminal is provided, the terminal includes a processor, a memory, and a program or instruction stored on the memory and executable on the processor, when the program or instruction is executed by the processor The steps of implementing the method as described in the first aspect.

In a sixth aspect, a network side device is provided, the network side device includes a processor, a memory, and a program or instruction stored on the memory and executable on the processor, the program or instruction being executed by the The processor implements the steps of the method as described in the third aspect when executed.

In a seventh aspect, a readable storage medium is provided, and a program or an instruction is stored on the readable storage medium, and when the program or instruction is executed by a processor, the steps of the method described in the first aspect, or the The steps of the method described in the third aspect.

In an eighth aspect, a chip is provided, the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to run a program or an instruction to implement the method according to the first aspect , or implement the method described in the third aspect.

In a ninth aspect, a computer program product is provided, the program product is stored in a non-volatile storage medium, the program product is executed by at least one processor to implement the method as described in the first aspect, or implement The method as described in the third aspect.

A tenth aspect provides a terminal configured to perform the steps of the method of the first aspect.

In an eleventh aspect, a network-side device is provided, and the network-side device is configured to perform the steps of the method of the third aspect.

In this embodiment of the present application, the beam information of at least two terminals is indicated by the first indication information, so that the purpose of indicating a common beam to at least two terminals by the first indication information can be achieved, and when the number of terminals is large, the number of terminals can be reduced. Signaling overhead.

Description of drawings

FIG. 1 is a structural diagram of a network system to which an embodiment of the present application can be applied;

FIG. 2 shows a schematic flowchart of a method for acquiring beam information according to an embodiment of the present application;

FIG. 3 shows a schematic flowchart of a beam information indication method according to an embodiment of the present application;

FIG. 4 shows a schematic diagram of a module of an apparatus for acquiring beam information according to an embodiment of the present application;

FIG. 5 shows a structural block diagram of a communication device according to an embodiment of the present application;

FIG. 6 shows a structural block diagram of a terminal according to an embodiment of the present application;

FIG. 7 is a schematic block diagram of a beam information indicating device according to an embodiment of the present application;

FIG. 8 shows a structural block diagram of a network side device according to an embodiment of the present application.

Detailed ways

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art fall within the protection scope of this application.

The terms "first", "second" and the like in the description and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances so that the embodiments of the present application can be practiced in sequences other than those illustrated or described herein, and "first", "second" distinguishes Usually it is a class, and the number of objects is not limited. For example, the first object may be one or multiple. In addition, "and/or" in the description and claims indicates at least one of the connected objects, and the character "/" generally indicates that the associated objects are in an "or" relationship.

It is worth noting that the technologies described in the embodiments of this application are not limited to Long Term Evolution (LTE)/LTE-Advanced (LTE-Advanced, LTE-A) systems, and can also be used in other wireless communication systems, such as code Division Multiple Access (Code Division Multiple Access, CDMA), Time Division Multiple Access (Time Division Multiple Access, TDMA), Frequency Division Multiple Access (Frequency Division Multiple Access, FDMA), Orthogonal Frequency Division Multiple Access (Orthogonal Frequency Division Multiple Access, OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA) and other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the described technology can be used not only for the above-mentioned systems and radio technologies, but also for other systems and radio technologies. However, the following description describes a New Radio (NR) system for example purposes, and NR terminology is used in most of the following description, although these techniques are also applicable to applications other than NR system applications, such as 6th generation ( 6th Generation, 6G) communication system.

FIG. 1 shows a block diagram of a wireless communication system to which the embodiments of the present application can be applied. The wireless communication system includes a terminal 11 and a network-side device 12 . The terminal 11 may also be called a terminal device or a user terminal (User Equipment, UE), and the terminal 11 may be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer) or a notebook computer, a personal digital computer Assistant (Personal Digital Assistant, PDA), handheld computer, netbook, ultra-mobile personal computer (ultra-mobile personal computer, UMPC), mobile Internet device (Mobile Internet Device, MID), wearable device (Wearable Device) or vehicle-mounted device (VUE), pedestrian terminal (PUE) and other terminal-side devices, wearable devices include: bracelets, headphones, glasses, etc. It should be noted that, the embodiment of the present application does not limit the specific type of the terminal 11 . The network side device 12 may be a base station or a core network, wherein the base station may be referred to as a Node B, an evolved Node B, an access point, a Base Transceiver Station (BTS), a radio base station, a radio transceiver, a basic service Set (Basic Service Set, BSS), Extended Service Set (Extended Service Set, ESS), Node B, Evolved Node B (eNB), Home Node B, Home Evolved Node B, WLAN Access Point, WiFi Node, Send Transmitting Receiving Point (TRP) or some other suitable term in the field, as long as the same technical effect is achieved, the base station is not limited to specific technical terms. The base station in the NR system is taken as an example, but the specific type of the base station is not limited.

In order to enable those skilled in the art to better understand the embodiments of the present application, the following description is first provided.

1. Regarding the beam indication mechanism:

After beam measurement and beam reporting, the network can make beam indications for downlink and uplink channels or reference signals, which are used to establish beam links between the network and the terminal UE to realize channel or reference signal transmission.

1. For the beam indication of the Physical Downlink Control Channel (PDCCH), the network uses Radio Resource Control (RRC) signaling to configure K transmission configurations for each Control Resource Set (Control Resource Set CORESET) Indication state (Transmission Configuration Indication state, TCI state), when K>1, the medium access layer control unit (Medium Access Control Element, MAC CE) indicates or activates 1 TCI state, when K=1, no need Additional MAC CE commands. When the UE monitors the PDCCH, it uses the same Quasi-Colocation (QCL) for all search spaces (Search Spaces) in the CORESET, that is, uses the same TCI state to monitor the PDCCH. The reference signal (Reference Signal, RS) in the TCI state, such as periodic channel state information reference signal resource (Channel State Information Reference Signal resource, CSI-RS), semi-persistent CSI-RS resource, synchronization signal (Synchronic Signal Block, SSB) ), etc., and the terminal physical downlink control channel specific demodulation reference signal (Physical Downlink Control Channel-specific Demodulation Reference Signal, UE-specific PDCCH DMRS) port is spatial QCL. The UE can know which receive beam to use to receive the PDCCH according to the TCI state.

2. For the beam indication of the Physical Downlink Shared Channel (PDSCH), the network configures M TCI states through RRC signaling, and then uses the MAC CE command to activate 2N TCI states, and then uses the Downlink Control Information (Downlink Control Information) , DCI) N TCI bit fields (N-bit TCI field) to notify the TCI state, the reference signal in the TCI state and the demodulation reference signal (Demodulation Reference Signal, DMRS) port of the PDSCH to be scheduled are QCL. The UE can know which receive beam to use to receive the PDSCH according to the TCI state.

3. For the beam indication of the Channel State Information Reference Signal (CSI-RS), when the CSI-RS type is periodic CSI-RS, the network configures QCL information for the CSI-RS resources through RRC signaling. When the CSI-RS type is semi-persistent CSI-RS, the network indicates its QCL information when activating a CSI-RS resource from the CSI-RS resource set configured by RRC through the MAC CE command. When the CSI-RS type is aperiodic CSI-RS, the network configures QCL for CSI-RS resources through RRC signaling, and uses DCI to trigger CSI-RS.

4. For the beam indication of the Physical Uplink Control Channel (PUCCH), the network uses RRC signaling to configure the spatial relationship information for each PUCCH resource through the physical uplink control channel spatial relationship information (PUCCH-Spatial RelationInfo). When the spatial relationship information of the PUCCH resource configuration includes multiple pieces, use the MAC-CE to indicate or activate one of the parameter spatial relationship information. When only one spatial relationship information is configured for the PUCCH resource, no additional MAC CE command is required.

5. For the beam indication of the Physical Uplink Shared Channel (PUSCH), the spatial relationship information of the PUSCH is the uplink scheduling request indication field (Scheduling Request Indication field, SRI field) in the DCI when the DCI carried by the PDCCH schedules the PUSCH. ) each SRI point (code point) indicates an SRI, and the SRI is used to indicate the spatial relationship information of the PUSCH.

6. For the beam indication of the channel sounding reference signal (Sounding Reference Signal, SRS), when the SRS type is periodic SRS, the network configures spatial relationship information for the SRS resources through RRC signaling. When the SRS type is semi-persistent SRS, the network activates one from a set of spatial relationship information configured by RRC through MAC CE signaling. When the SRS type is aperiodic SRS, the network configures spatial relationship information for SRS resources through RRC signaling, and can also use MAC CE signaling to update the spatial relationship information of aperiodic SRS resources.

2. Regarding the beam indication in the multi-Transmission Reception Point (multi-TRP) scenario:

In 3GPP Release 16, the multi-TRP scenario was introduced. According to the transmission method of control information, it can be divided into DCI single transmission and DCI multiple transmission. The former is to send DCI in one TRP to schedule data transmission on multiple TRPs, and the latter is DCI is allowed to be sent at multiple TRPs to separately schedule data transmissions on the respective TRPs.

When the DCI schedules the PDSCH, when the scheduling offset or time offset between the DCI and the PDSCH is less than or equal to a preset threshold, a default beam needs to be used to transmit the PDSCH. The prior art stipulates as follows:

1. For DCI multi-transmission based on multi-transmission reception points or antennas (multi-Transmission Reception Point/multi-Transmission Reception Panel), if the control resource pool index (CORESET Pool Index) is configured, when the above scheduling interval is less than or equal to the preset When the threshold is set, the UE assumes that the reference information in the QCL information of the PDSCH DMRS port and the PDCCH with the lowest control resource pool index value (CORESET with lowest index) configured with the same control resource pool index value is QCL.

The above CORESET with lowest index is the CORESET with lowest index in the CORESET that the UE needs to monitor corresponding to the respective CORESET Pool Index value in the latest time slot (latest slot). The latest slot refers to the activation of the broadband part (Bandwidth Part, BWP) in the serving cell, and there is at least one CORESET time slot associated with the corresponding CORESET Pool Index.

If the UE does not support this feature, no matter how the CORESET Pool Index is configured, the rules of 3GPP version 15 are reused, that is, CORESET with lowest index is CORESET with lowest index in CORESET that UE needs to monitor in the latest slot, and CORESET with lowest index is the same as CORESET Pool Index. It doesn't matter.

2. For DCI single transmission based on a single transmission reception point or antenna (single-single-Transmission Reception Point/single-Transmission Reception Panel), when the above scheduling interval is less than or equal to the preset threshold, and the TCI of the UE-specific PDSCH is received After the activation command of the state, the UE assumes that the PDSCH DMRS port uses the QCL parameters of the preset TCI state. That is, in the TCI state for PDSCH activation, the TCI state corresponding to the lowest code point (lowest code point) is selected from TCI code points including two different TCI states.

If all TCI codepoints correspond to a single TCI state, use Release 15 behavior.

The beam information mentioned in the above content may also be referred to as spatial relation information, spatial domain transmission filter information, spatial filter information, and transmission configuration indication status (TCI). state) information, quasi-co-location (QCL) information or QCL parameters, etc. The downlink beam information can usually be represented by TCI state information or QCL information, and the uplink beam information can usually be represented by spatial relation information. The identification of the Panel may be: an identification of an antenna panel, a reference signal resource identification, a reference signal resource set identification, a TCI state identification, a QCL information identification or a spatial relationship identification, and the like.

As shown in FIG. 2 , an embodiment of the present application provides a method for acquiring beam information, which is applied to a terminal, and the method includes:

Step 201: Acquire first indication information, where the first indication information is used to indicate beam information of at least two terminals.

Here, the above-mentioned first indication information may perform common beam indication for at least two terminals. For example, for a high-frequency communication system, the communication link between the network and the terminal can usually use a single beam mode, that is, the beam directions of the control channel, data channel, and reference signal are basically the same. The indication information is used for common beam indication, and it is not necessary to perform beam indication for each channel and reference signal separately. That is, the present application can perform common beam indication in the case of a large number of terminals, thereby reducing signaling overhead and ensuring flexibility and robustness of beam indication.

In the method for obtaining beam information in this embodiment of the present application, the beam information of at least two terminals is indicated by the first indication information, so that the purpose of indicating a common beam to at least two terminals by the first indication information can be achieved, and when the number of terminals is large, , which can reduce signaling overhead.

Optionally, the first indication information is used to indicate beam information of a terminal group, and the terminal group includes the at least two terminals.

In this embodiment of the present application, multiple terminals may be grouped, and then the beam information of the terminal group may be indicated through the first indication information, so as to achieve the purpose of saving control signaling overhead.

Optionally, the method for obtaining beam information further includes: obtaining second indication information, where the second indication information is used to indicate grouping information of the terminal group;

Wherein, the second indication information includes the identification of the terminal group, or the second indication information includes the identification of the terminal group and the identification of each terminal in the terminal group.

Optionally, the network-side device indicating the terminal grouping is based on the synchronization signal/physical broadcast channel signal block (Synchronization Signal and PBCH block, SSB) resource indicator (Resource Indicator, RI) in the beam report (beam report) of each terminal/ CSI-RS resource indicator (CSI-RS resource indicator, CRI) and other information, that is, according to the beam information carried in the beam report, the terminals with the same or similar beam information (even if the inter-beam interference is small) can be divided into one Group.

Optionally, the acquiring the second indication information includes: acquiring the second indication information through radio resource control RRC signaling, MAC CE signaling or DCI signaling. That is, the network side device can use RRC signaling, MAC CE signaling or DCI signaling to indicate the terminal grouping information to the terminal, wherein the second indication information can carry the identification (UE ID) information of the terminal, such as the cell wireless network of the UE. Temporary identifier (Cell Radio Network Temporary Identifier, C-RNTI).

Optionally, the first indication information includes at least one of the following:

The identity of the terminal group and one beam information; wherein, all UEs in the terminal group can use the same beam information;

The identification of at least one terminal and one beam information; wherein, this part of terminals can use the same one beam information;

The identity of a terminal and the corresponding beam information; wherein, other UEs can use the beam information of this UE;

The identifier of at least one terminal and the beam information corresponding to the identifier of each terminal; wherein, each UE can use the corresponding beam information.

Optionally, the acquiring the first indication information includes: acquiring the first indication information through DCI signaling. The DCI signaling is on the first set of common PDCCHs.

Optionally, the beam information acquisition method further includes: acquiring third indication information, where the third indication information is used to indicate time-frequency information required for monitoring the first group of public PDCCHs.

For example, the third indication information can be acquired by acquiring network signaling (such as MAC CE signaling). Optionally, the above-mentioned third indication information is that at least one terminal state of the network-side device in the terminal group changes (such as moving or rotating, etc.), or the state change reaches a preset condition (such as the moving distance reaches the preset distance or the rotation angle reaches the predetermined angle).

Optionally, the third indication information includes at least one of the following:

Control resource set (CORESET) information corresponding to the first group of public PDCCHs;

Search space (search space) information corresponding to the first group of common PDCCHs.

In an embodiment of the present application, after the terminal moves, another SSB that satisfies the preset conditions can be determined by measuring the SSB, and the network side device sends CORESET information to the terminal according to the mapping relationship or association relationship between the SSB and the COSESET and/or search space and/or search space information, the terminal can learn the TCI state information of the first group of public PDCCHs according to the received CORESET information and/or the TCI state information of the search space information, so as to monitor the first group of public PDCCHs.

Optionally, the beam information acquisition method further includes: determining first beam information used by the first group of common PDCCHs. Optionally, the determining the first beam information used by the first group of common PDCCHs includes at least one of the following:

Determine the first beam information according to the synchronization signal/physical broadcast channel signal block SSB beam information that meets the preset condition measured by the terminal during initial access;

determining the first beam information according to the fourth indication information;

After the first time, according to the fourth indication information, determine the first beam information;

Before the first time, determine the first beam information according to the default beam information;

Wherein, the fourth indication information is used to indicate the TCI state information of the first group of common PDCCHs.

Here, the fourth indication information can be obtained through RRC signaling or MAC CE signaling,

Optionally, in the case where the first beam information is indicated by MAC CE signaling, the first time is after the first preset duration of transmitting the affirmative acknowledgment (Acknowledgement, ACK) information of the MAC CE signaling. time;

Or, when the first beam information is indicated by the previous DCI, the first time is the time when the time interval between the PDCCH where the previous DCI is located and the current group of common PDCCHs is greater than or equal to a preset threshold, The PDCCH where the previous DCI is located is the previous group public PDCCH or the previous dedicated PDCCH;

Or, in the case that the first beam information is indicated by RRC signaling, the first time is the time after receiving the second preset duration of RRC signaling.

In this embodiment of the present application, the above-mentioned first time may be understood as the effective time of the first beam information. When the first beam information is indicated in different ways, the time represented by the first time is different. For example, in the case where the first beam information is indicated by MAC CE signaling, the first time refers to receiving the hybrid automatic repeat request acknowledgement (HARQ-ACK) of the MAC CE signaling as The time after the first preset duration after the ACK, where the HARQ-ACK includes an ACK and a Negative Acknowledge (Negative Acknowledge, NACK).

Optionally, the default beam information includes one of the following:

During initial access, the terminal measures the SSB beam information that meets the preset conditions;

Beam information of the CORESET with the smallest CORESET ID in the current cell;

Current beam information or original beam information, where the original beam information refers to the beam used before the first time;

The beam information indicated by the TCI state with a preset identifier in the TCI state pool.

Optionally, the beam information acquisition method further includes: determining the monitoring timing information of the first group of common PDCCHs according to the TCI state information of the first group of common PDCCHs. The determining the monitoring timing information of the first group of common PDCCHs according to the TCI state information of the first group of common PDCCHs includes:

Acquire configuration information of the first search space, where the configuration information includes monitoring occasion; determine the monitoring of the first group of public PDCCHs according to the TCI state information of the first group of public PDCCHs and a preset correspondence Timing information, the preset correspondence is the correspondence between the monitoring timing information and the TCI status information of the group public PDCCH, and one TCI status information corresponds to at least one monitoring timing information;

Alternatively, the network side equipment is not required to perform configuration, but the monitoring timing information of the first group of public PDCCHs is determined according to the rules, that is, according to the source reference signal (Reference Signal, RS) in the TCI status information of the first group of public PDCCHs ), determine the synchronization signal/physical broadcast channel signal block SSB; according to the parameter information of the SSB, determine the monitoring timing information of the first group of common PDCCH; QCL source is SSB;

Alternatively, the monitoring timing information of the first group of common PDCCHs is determined according to the correspondence between the TCI state information of the first group of common PDCCHs and the second search space, and the second search space is a search space numbered 0. That is to say, the TCI status information of the first group of public PDCCHs has a corresponding relationship with the search space numbered 0, and the monitoring of the first group of public PDCCHs can be determined according to the configuration information of the search space and the corresponding relationship. timing information.

Here, the preset corresponding relationship may be carried by the configuration information, or may be stipulated by a protocol.

Optionally, the beam information acquisition method further includes: acquiring fifth indication information, where the fifth indication information is used to indicate the first information corresponding to the TCI status information of each terminal on the first group of public PDCCHs;

The first information includes at least one of the following:

TCI field, namely TCI field;

The sequence of TCI status information;

bit length of TCI status information;

DCI size, that is, DCI size.

The above fifth indication information can be sent by sending network signaling (such as MAC CE signaling).

Optionally, the method for acquiring beam information further includes: for the fifth indication information sent by different sending and receiving points, respectively acquiring the first information corresponding to the TCI state information of the terminal in each of the fifth indication information. information.

Here, for the group common PDCCH from different TRPs, the interpretation methods of the TCI state information of the downlink and uplink common beams of each terminal may be independent of each other.

Optionally, when the number of terminals in the terminal group is greater than the number of TCI states that can be carried by the DCI signaling, perform at least one of the following operations:

Obtain sixth indication information, where the sixth indication information is used to instruct to monitor the second group of public PDCCHs. Here, for a terminal newly added to the terminal group, the sixth indication information instructs the terminal to monitor the second group of public PDCCHs, that is, PDCCHs on another control resource set (CORESET) and/or search space (search space). That is, the CORESET and search space of the second group of common PDCCHs are different from those of the first group of common PDCCHs.

Acquire the number of first TCI states configured by the network side device for the first group of public PDCCHs, where the number of the first TCI states is greater than or equal to the number of terminals in the terminal group. Here, the number of first TCI states configured by the network-side device for the first group of public PDCCHs can meet the number of terminals in the terminal group, for example, the first group of public PDCCHs are extended from 3 bits to 4 bits to support beam information of more terminals Indicates that since the TCI state (TCI state) increases, the listening opportunity increases, so that more terminals can be supported.

Acquire at least two radio network temporary identity (Radio Network Temporary Identity, RNTI) information of the first group of public PDCCHs, and different terminal groups use different RNTI information. Here, the obtaining method may be obtaining according to the network side configuration, or obtaining according to the agreement.

Obtain multiple sets of listening occasions corresponding to the first set of common PDCCHs. When the number of terminals is large, these terminals can be divided into multiple parts, and the TCI states of the first group of public PDCCHs are configured to correspond to multiple sets of listening timings (such as odd-even listening timings), and then each part of the terminals can monitor according to different TCI states. time to monitor. For example, when the number of terminals increases, the monitoring timings of the first group of public PDCCHs are divided into two groups according to parity, and they are sent using different RNTI information. The timings are odd-numbered monitoring timings or even-numbered monitoring timings, wherein the odd-even monitoring timings may correspond to the same TCI state.

Optionally, the beam information acquisition method further includes: acquiring at least two wireless network temporary identifier RNTI information of the first group of public PDCCHs, and different terminal groups use different RNTI information.

That is, the network-side device may configure multiple RNTI information for the first group of common PDCCHs, so that different terminal groups use different RNTI information. Further, for a terminal group with a large number of terminals, the terminal group may be divided into multiple parts (ie, multiple subgroups), and different subgroups may use different RNTI information respectively.

As shown in FIG. 3 , an embodiment of the present application further provides a beam information indication method, which is applied to a network side device, including:

Step 301: Send first indication information, where the first indication information is used to indicate beam information of at least two terminals.

Here, the above-mentioned first indication information may perform common beam indication for at least two terminals. That is, the present application can perform common beam indication in the case of a large number of terminals, thereby reducing signaling overhead and ensuring flexibility and robustness of beam indication.

In the beam information indication method according to the embodiment of the present application, the beam information of at least two terminals is indicated by the first indication information, so that the purpose of performing a common beam indication for at least two terminals by the first indication information can be achieved. , which can reduce signaling overhead.

Optionally, the beam information indication method further includes: sending second indication information, where the second indication information is used to indicate grouping information of the terminal group;

The second indication information includes an identifier of a terminal group, or the second indication information includes an identifier of the terminal group and an identifier of each terminal in the terminal group.

Optionally, the sending the second indication information includes: sending the second indication information through radio resource control RRC signaling, MAC CE signaling or DCI signaling. That is, the network side device can use RRC signaling, MAC CE signaling or DCI signaling to indicate the terminal grouping information to the terminal, wherein the second indication information can carry the identification information of the terminal, such as the C-RNTI of the UE.

Optionally, the beam information indication method further includes: acquiring beam information in a beam report of the terminal; allocating terminals with the same or similar beam information to the same terminal group; wherein the similar beam information refers to Differences between spatial reception parameter values of different beam information are smaller than a preset threshold.

That is to say, the network-side equipment instructing the terminals to group is based on the SSB RI/CRI and other information in the beam report of each terminal, that is, according to the beam information carried in the beam report, the beam information can be the same or similar (even the beam information). terminals with less inter-interference) are grouped into a group.

A terminal group identifier and a beam information; wherein, all terminals in the terminal group can use the same beam information;

The identity of a terminal and the corresponding beam information; wherein, other terminals can use the beam information of the UE;

The identifier of at least one terminal and the beam information corresponding to the identifier of each terminal.

Optionally, the sending the first indication information includes:

The first indication information is sent through DCI signaling.

Optionally, the DCI signaling is located on the first group of common physical downlink control channels PDCCH.

Optionally, the beam information indication method further includes:

Send third indication information, where the third indication information is used to indicate time-frequency information required for monitoring the first group of common PDCCHs. Optionally, the above-mentioned third indication information is that at least one terminal state of the network-side device in the terminal group changes (such as moving or rotating, etc.), or the state change reaches a preset condition (such as the moving distance reaches the preset distance or the rotation angle reaches the predetermined angle).

Control resource set information corresponding to the first group of public PDCCHs;

Search space information corresponding to the first group of common PDCCHs.

Optionally, the beam information indication method further includes: determining first beam information used by the first group of common PDCCHs. Optionally, the determining the first beam information used by the first group of common PDCCHs includes at least one of the following:

Determine the first beam information according to the synchronization signal/physical broadcast channel signal block SSB beam information that meets the preset conditions measured by the terminal during initial access;

Wherein, the fourth indication information is used to indicate that the transmission configuration of the first group of common PDCCHs indicates TCI status information.

Optionally, the beam information indication method further includes: sending the fourth indication information.

Optionally, when the first beam information is indicated by MAC CE signaling, the first time is a time after the first preset duration of transmitting the ACK information;

Or, in the case that the first beam information is indicated by RRC signaling, the first time is a time after the second preset duration of sending RRC signaling.

In this embodiment of the present application, the above-mentioned first time may be understood as the effective time of the first beam information. When the first beam information is indicated in different ways, the time represented by the first time is different. For example, in the case where the first beam information is indicated by MAC CE signaling, the first time refers to the time after the first preset duration after receiving the HARQ-ACK of the MAC CE signaling as ACK, wherein, HARQ-ACK includes ACK and NACK.

Optionally, the default beam information includes one of the following:

Optionally, the beam information indication method further includes: further including:

Configuration information of the first search space is sent, where the configuration information includes listening opportunity information.

Optionally, the beam information indication method further includes:

sending fifth indication information, where the fifth indication information is used to indicate the first information corresponding to the TCI status information of each of the terminals on the first group of common PDCCHs;

The first information includes at least one of the following:

TCI field, namely TCI field;

The sequence of TCI status information;

bit length of TCI status information;

DCI size, that is, DCI size.

Here, the network side device may send the fifth indication information by sending network signaling (such as MAC CE signaling). For group common PDCCHs from different TRPs, the ways of interpreting the TCI status information of the downlink and uplink common beams of each terminal can be independent of each other.

Optionally, when the number of terminals in the terminal group is greater than the number of TCI states that can be carried by the DCI signaling, perform at least one of the following operations;

Send sixth indication information, where the sixth indication information is used to instruct the first terminal in the terminal group to monitor the second group of public PDCCHs. Here, for a terminal newly added to the terminal group, the sixth indication information instructs the terminal to monitor the second group of public PDCCHs, that is, another control resource set and/or PDCCH on the search space. That is, the control resource set and search space of the second group of common PDCCHs are different from those of the first group of common PDCCHs.

A first number of TCI states is configured for the first group of common PDCCHs, where the number of first TCI states is greater than or equal to the number of terminals in the terminal group. Here, the number of first TCI states configured by the network-side device for the first group of public PDCCHs can meet the number of terminals in the terminal group, for example, the first group of public PDCCHs are extended from 3 bits to 4 bits to support beam information of more terminals Indicates that since the TCI state (TCI state) increases, the listening opportunity increases, so that more terminals can be supported.

Configure at least two wireless network temporary identifier RNTI information for the first group of public PDCCHs, and different terminal groups use different RNTI information;

Configuring the TCI state of the first group of public PDCCHs corresponds to multiple groups of listening opportunities. When the number of terminals is large, these terminals can be divided into multiple parts, and the TCI states of the first group of public PDCCHs are configured to correspond to multiple sets of listening timings (such as odd-even listening timings), and then each part of the terminals can monitor according to different TCI states. time to monitor. For example, when the number of terminals increases, the monitoring timings of the first group of public PDCCHs are divided into two groups according to parity, and they are sent using different RNTI information. The timings are odd-numbered monitoring timings or even-numbered monitoring timings, wherein the odd-even monitoring timings may correspond to the same TCI state.

Optionally, the beam information indication method further includes: configuring at least two wireless network temporary identifier RNTI information for the first group of public PDCCHs, and different terminal groups use different RNTI information.

In the beam information indication method of the present application, the beam information of at least two terminals is indicated by the first indication information, so that the purpose of performing a common beam indication for at least two terminals through the first indication information can be achieved, and when the number of terminals is large, the beam information of at least two terminals can be indicated. Reduce signaling overhead. .

It should be noted that, for the beam information acquisition method provided by the embodiments of the present application, the execution subject may be a beam information acquisition apparatus, or a control module in the beam information acquisition apparatus for executing the beam information acquisition method. In the embodiments of the present application, the beam information acquisition apparatus provided by the embodiments of the present application is described by taking the beam information acquisition method performed by the beam information acquisition apparatus as an example.

As shown in FIG. 4 , an embodiment of the present application further provides an apparatus 400 for acquiring beam information, which is applied to a terminal and includes:

The first obtaining module 401 is configured to obtain first indication information, where the first indication information is used to indicate beam information of at least two terminals.

In the apparatus for acquiring beam information in this embodiment of the present application, the first indication information is used to indicate beam information of a terminal group, and the terminal group includes the at least two terminals.

The apparatus for acquiring beam information according to the embodiment of the present application further includes:

a second obtaining module, configured to obtain second indication information, where the second indication information is used to indicate grouping information of the terminal group;

In the apparatus for acquiring beam information in this embodiment of the present application, the first indication information includes at least one of the following:

The identity of the terminal group and one beam information;

at least one terminal identification and one beam information;

The identity of a terminal and the corresponding beam information;

In the apparatus for obtaining beam information according to the embodiment of the present application, the first obtaining module 401 includes:

A first obtaining unit, configured to obtain the first indication information through DCI signaling.

In the apparatus for acquiring beam information according to the embodiment of the present application, the DCI signaling is located on the first group of common physical downlink control channels PDCCH.

The third obtaining module is configured to obtain third indication information, where the third indication information is used to indicate the time-frequency information required for monitoring the first group of public PDCCHs.

In the apparatus for acquiring beam information in this embodiment of the present application, the third indication information includes at least one of the following:

Search space information corresponding to the first group of common PDCCHs.

A first determining module, configured to determine first beam information used by the first group of common PDCCHs.

In the apparatus for acquiring beam information according to the embodiment of the present application, the first determining module includes at least one of the following:

a first determining unit, configured to determine the first beam information according to the synchronization signal/physical broadcast channel signal block SSB beam information that the terminal measures during initial access that meets preset conditions;

a second determining unit, configured to determine the first beam information according to the fourth indication information;

a third determining unit, configured to determine the first beam information according to the fourth indication information after the first time;

a fourth determining unit, configured to determine the first beam information according to the default beam information before the first time;

The second determination module is configured to determine the monitoring timing information of the first group of common PDCCHs according to the TCI state information of the first group of common PDCCHs.

In the apparatus for obtaining beam information according to the embodiment of the present application, the second determining module includes:

a fifth determination unit, configured to acquire configuration information of the first search space, where the configuration information includes monitoring timing information; and determine the first group of common PDCCHs according to the TCI state information of the first group of common PDCCHs and a preset correspondence The monitoring timing information of the PDCCH, the preset corresponding relationship is the corresponding relationship between the monitoring timing information and the TCI status information of the group public PDCCH, and one TCI status information corresponds to at least one monitoring timing information;

a sixth determining unit, configured to determine a synchronization signal/physical broadcast channel signal block SSB according to the source reference signal RS in the TCI state information of the first group of common PDCCHs; and determine the first SSB according to parameter information of the SSB The monitoring timing information of the group public PDCCH;

A seventh determination unit, configured to determine the monitoring timing information of the first group of public PDCCHs according to the corresponding relationship between the TCI state information of the first group of public PDCCHs and the second search space, and the second search space is numbered as 0 search space.

a fourth obtaining module, configured to obtain fifth indication information, where the fifth indication information is used to indicate the first information corresponding to the TCI state information of each of the terminals on the first group of public PDCCHs;

The first information includes at least one of the following:

TCI domain;

The sequence of TCI status information;

bit length of TCI status information;

DCI size.

A fifth obtaining module is configured to obtain first information corresponding to the TCI state information of the terminal in each of the fifth indication information for the fifth indication information sent by different sending and receiving points, respectively.

In the apparatus for obtaining beam information according to the embodiment of the present application, in the case where the first beam information is indicated by MAC CE signaling, the first time is after the first preset duration of transmitting the ACK information of the MAC CE signaling time;

Alternatively, in the case that the first beam information is indicated by RRC signaling, the first time is a time after receiving the second preset duration of RRC signaling.

In the apparatus for obtaining beam information in this embodiment of the present application, the default beam information includes one of the following:

The apparatus for acquiring beam information according to the embodiment of the present application performs at least one of the following operations when the number of terminals in the terminal group is greater than the number of TCI states that can be carried by DCI signaling:

obtaining sixth indication information, where the sixth indication information is used to instruct to monitor the second group of public PDCCHs;

Acquire the number of first TCI states configured by the network side device for the first group of public PDCCHs, where the number of the first TCI states is greater than or equal to the number of terminals in the terminal group;

Acquire at least two wireless network temporary identifier RNTI information of the first group of public PDCCHs, and different terminal groups use different RNTI information;

Obtain multiple sets of listening occasions corresponding to the first set of common PDCCHs.

The sixth obtaining module is configured to obtain at least two wireless network temporary identifier RNTI information of the first group of public PDCCHs, and different terminal groups use different RNTI information.

In the apparatus for obtaining beam information in this embodiment of the present application, the beam information of at least two terminals is indicated by the first indication information, so that the purpose of performing a common beam indication on at least two terminals by the first indication information can be achieved, and when the number of terminals is large, , which can reduce signaling overhead. .

The apparatus for acquiring beam information in this embodiment of the present application may be an apparatus, or may be a component, an integrated circuit, or a chip in a terminal. The device may be a mobile terminal or a non-mobile terminal. Exemplarily, the mobile terminal may include, but is not limited to, the types of terminals 11 listed above, and the non-mobile terminal may be a server, a network attached storage (NAS), a personal computer (personal computer, PC), a television ( television, TV), teller machine, or self-service machine, etc., which are not specifically limited in the embodiments of the present application.

The apparatus for acquiring beam information in this embodiment of the present application may be an apparatus having an operating system. The operating system may be an Android (Android) operating system, an ios operating system, or other possible operating systems, which are not specifically limited in the embodiments of the present application.

The apparatus for obtaining beam information provided in this embodiment of the present application can implement each process implemented by the method embodiment in FIG. 2 , and achieve the same technical effect. To avoid repetition, details are not repeated here.

Optionally, as shown in FIG. 5 , an embodiment of the present application further provides a communication device 500, including a processor 501, a memory 502, a program or instruction stored in the memory 502 and executable on the processor 501, For example, when the communication device 500 is a terminal, when the program or instruction is executed by the processor 501, each process of the above embodiments of the method for obtaining beam information applied to the terminal can be implemented, and the same technical effect can be achieved. When the communication device 500 is a network side device, when the program or instruction is executed by the processor 501, each process of the above-mentioned embodiment of the beam information indication method applied to the network device side can be realized, and the same technical effect can be achieved. In order to avoid repetition, I won't go into details here.

FIG. 6 is a schematic diagram of a hardware structure of a terminal implementing an embodiment of the present application.

The terminal 600 includes but is not limited to: a radio frequency unit 601, a network module 602, an audio output unit 603, an input unit 604, a sensor 605, a display unit 606, a user input unit 607, an interface unit 608, a memory 609, a processor 610 and other components .

Those skilled in the art can understand that the terminal 600 may also include a power source (such as a battery) for supplying power to various components, and the power source may be logically connected to the processor 610 through a power management system, so as to manage charging, discharging, and power consumption through the power management system management and other functions. The terminal structure shown in FIG. 6 does not constitute a limitation on the terminal, and the terminal may include more or less components than shown, or combine some components, or arrange different components, which will not be repeated here.

It should be understood that, in this embodiment of the present application, the input unit 604 may include a graphics processor (Graphics Processing Unit, GPU) 6041 and a microphone 6042. Such as camera) to obtain still pictures or video image data for processing. The display unit 606 may include a display panel 6061, which may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 607 includes a touch panel 6071 and other input devices 6072 . The touch panel 6071 is also called a touch screen. The touch panel 6071 may include two parts, a touch detection device and a touch controller. Other input devices 6072 may include, but are not limited to, physical keyboards, function keys (such as volume control keys, switch keys, etc.), trackballs, mice, and joysticks, which will not be repeated here.

In the embodiment of the present application, the radio frequency unit 601 receives the downlink data from the network side device, and then processes it to the processor 610; in addition, sends the uplink data to the network side device. Generally, the radio frequency unit 601 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.

Memory 609 may be used to store software programs or instructions as well as various data. The memory 609 may mainly include a stored program or instruction area and a storage data area, wherein the stored program or instruction area may store an operating system, an application program or instruction required for at least one function (such as a sound playback function, an image playback function, etc.) and the like. In addition, the memory 609 may include a high-speed random access memory, and may also include a non-volatile memory, wherein the non-volatile memory may be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM) , PROM), erasable programmable read-only memory (Erasable PROM, EPROM), electrically erasable programmable read-only memory (Electrically EPROM, EEPROM) or flash memory. For example at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device.

The processor 610 may include one or more processing units; optionally, the processor 610 may integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface, and application programs or instructions, etc. Modem processors mainly deal with wireless communications, such as baseband processors. It can be understood that, the above-mentioned modulation and demodulation processor may not be integrated into the processor 610.

The radio frequency unit 601 is configured to acquire first indication information, where the first indication information is used to indicate beam information of at least two terminals.

In the terminal in this embodiment of the present application, the beam information of at least two terminals is indicated by the first indication information, so that the purpose of indicating a common beam to at least two terminals by the first indication information can be achieved, and when the number of terminals is large, the number of terminals can be reduced. Signaling overhead. .

Optionally, the radio frequency unit 601 is further configured to acquire second indication information, where the second indication information is used to indicate grouping information of the terminal group;

The identity of the terminal group and one beam information;

at least one terminal identification and one beam information;

The identity of a terminal and the corresponding beam information;

Optionally, the obtaining the first indication information includes:

The first indication information is acquired through DCI signaling.

Optionally, the radio frequency unit 601 is further configured to acquire third indication information, where the third indication information is used to indicate time-frequency information required for monitoring the first group of public PDCCHs.

Search space information corresponding to the first group of common PDCCHs.

Optionally, the processor 610 is configured to determine first beam information used by the first group of common PDCCHs.

Optionally, the determining the first beam information used by the first group of common PDCCHs includes at least one of the following:

Optionally, the processor 610 is further configured to determine the monitoring timing information of the first group of common PDCCHs according to the TCI state information of the first group of common PDCCHs.

Optionally, determining the monitoring timing information of the first group of common PDCCHs according to the TCI state information of the first group of common PDCCHs includes:

Obtain configuration information of the first search space, where the configuration information includes monitoring timing information; determine the monitoring timing information of the first group of public PDCCHs according to the TCI state information of the first group of public PDCCHs and a preset corresponding relationship, and The preset corresponding relationship is the corresponding relationship between the monitoring timing information and the TCI status information of the group public PDCCH, and one TCI status information corresponds to at least one monitoring timing information;

Or, according to the source reference signal RS in the TCI state information of the first group of common PDCCHs, determine the synchronization signal/physical broadcast channel signal block SSB; according to the parameter information of the SSB, determine the monitoring of the first group of common PDCCHs timing information;

Alternatively, the monitoring timing information of the first group of common PDCCHs is determined according to the correspondence between the TCI state information of the first group of common PDCCHs and the second search space, and the second search space is a search space numbered 0.

Optionally, the radio frequency unit 601 is further configured to acquire fifth indication information, where the fifth indication information is used to indicate the first information corresponding to the TCI status information of each of the terminals on the first group of public PDCCHs;

The first information includes at least one of the following:

TCI domain;

The sequence of TCI status information;

bit length of TCI status information;

DCI size.

Optionally, the processor 610 is further configured to obtain first information corresponding to the TCI state information of the terminal in each of the fifth indication information for the fifth indication information sent by different sending and receiving points.

Optionally, in the case that the first beam information is indicated by MAC CE signaling, the first time is the time after the first preset duration of transmitting the ACK information of the MAC CE signaling;

Optionally, the default beam information includes one of the following:

current beam information or original beam information, the original beam information refers to the beam used before the first time;

Optionally, the processor 610 is further configured to perform at least one of the following operations when the number of terminals in the terminal group is greater than the number of TCI states that can be carried by the DCI signaling:

acquiring the number of first TCI states configured by the network side device for the first group of public PDCCHs, where the number of the first TCI states is greater than or equal to the number of terminals in the terminal group;

Optionally, the radio frequency unit 601 is further configured to acquire at least two wireless network temporary identifier RNTI information of the first group of public PDCCHs, and different terminal groups use different RNTI information.

In the terminal in this embodiment of the present application, the beam information of at least two terminals is indicated by the first indication information, so that the purpose of performing a common beam indication for at least two terminals by the first indication information can be achieved, and when the number of terminals is large, the number of terminals can be reduced. Signaling overhead. .

As shown in FIG. 7 , an embodiment of the present application further provides a beam information indicating apparatus 700, which is applied to a network side device, including:

The first sending module 701 is configured to send first indication information, where the first indication information is used to indicate beam information of at least two terminals.

In the apparatus for indicating beam information in this embodiment of the present application, the first indication information is used to indicate beam information of a terminal group, where the terminal group includes the at least two terminals.

The beam information indicating device according to the embodiment of the present application further includes:

a second sending module, configured to send second indication information, where the second indication information is used to indicate grouping information of the terminal group;

a seventh obtaining module, configured to obtain beam information in the beam report of the terminal;

The first grouping module is used for allocating terminals with the same or similar beam information to the same terminal group;

The similarity of the beam information means that the difference between the spatial reception parameter values of different beam information is smaller than a preset threshold.

In the apparatus for indicating beam information in this embodiment of the present application, the first indication information includes at least one of the following:

Terminal group identification and a beam information;

at least one terminal identification and one beam information;

The identity of a terminal and the corresponding beam information;

In the apparatus for indicating beam information in this embodiment of the present application, the first sending module 701 includes:

The first sending unit is configured to send the first indication information through DCI signaling.

In the beam information indication device of the embodiment of the present application, the DCI signaling is located on the first group of common physical downlink control channels PDCCH.

The third sending module is configured to send third indication information, where the third indication information is used to indicate the time-frequency information required for monitoring the first group of common PDCCHs.

In the beam information indication device according to the embodiment of the present application, the third indication information includes at least one of the following:

Search space information corresponding to the first group of common PDCCHs.

The third determining module is configured to determine the first beam information used by the first group of common PDCCHs.

In the beam information indicating device according to the embodiment of the present application, the third determining module includes at least one of the following:

The eighth determination unit is used to determine the first beam information according to the synchronization signal/physical broadcast channel signal block SSB beam information that meets the preset condition measured by the terminal during initial access;

a ninth determination unit, configured to determine the first beam information according to the fourth indication information;

a tenth determining unit, configured to determine the first beam information according to the fourth indication information after the first time;

An eleventh determination unit, configured to determine the first beam information according to the default beam information before the first time;

A fourth sending module, configured to send the fourth indication information.

In the apparatus for indicating beam information according to the embodiment of the present application, in the case that the first beam information is indicated by MAC CE signaling, the first time is after the first preset duration of transmitting the ACK information of the MAC CE signaling. time;

In the apparatus for indicating beam information in this embodiment of the present application, the default beam information includes one of the following:

The fifth sending module is configured to send configuration information of the first search space, where the configuration information includes monitoring timing information.

a sixth sending module, configured to send fifth indication information, where the fifth indication information is used to indicate the first information corresponding to the TCI status information of each of the terminals on the first group of public PDCCHs;

The first information includes at least one of the following:

TCI domain;

The sequence of TCI status information;

bit length of TCI status information;

DCI size.

The beam information indicating device according to the embodiment of the present application performs at least one of the following operations when the number of terminals in the terminal group is greater than the number of TCI states that can be carried by the DCI signaling;

sending sixth indication information, where the sixth indication information is used to instruct the first terminal in the terminal group to monitor the second group of public PDCCHs;

Configuring a first number of TCI states for the first group of public PDCCHs, where the number of first TCI states is greater than or equal to the number of terminals in the terminal group;

Configuring the TCI state of the first group of public PDCCHs corresponds to multiple groups of listening opportunities.

The first configuration module is configured to configure at least two wireless network temporary identifier RNTI information for the first group of public PDCCHs, and different terminal groups use different RNTI information.

The apparatus for indicating beam information in this embodiment of the present application indicates beam information of at least two terminals through the first indication information, so that the purpose of indicating a common beam to at least two terminals through the first indication information can be achieved. , which can reduce signaling overhead. .

Specifically, an embodiment of the present application further provides a network side device. As shown in FIG. 8 , the network side device 800 includes: an antenna 801 , a radio frequency device 802 , and a baseband device 803 . The antenna 801 is connected to the radio frequency device 802. In the uplink direction, the radio frequency device 802 receives information through the antenna 801, and sends the received information to the baseband device 803 for processing. In the downlink direction, the baseband device 803 processes the information to be sent and sends it to the radio frequency device 802 , and the radio frequency device 802 processes the received information and sends it out through the antenna 81 .

The above-mentioned frequency band processing apparatus may be located in the baseband apparatus 803 , and the method performed by the network side device in the above embodiments may be implemented in the baseband apparatus 803 . The baseband apparatus 803 includes a processor 804 and a memory 805 .

The baseband device 803 may include, for example, at least one baseband board on which multiple chips are arranged. As shown in FIG. 8 , one of the chips is, for example, the processor 804 , which is connected to the memory 805 to call the program in the memory 805 to execute The network-side device shown in the above method embodiments operates.

The baseband device 803 may further include a network interface 806 for exchanging information with the radio frequency device 802, and the interface is, for example, a common public radio interface (CPRI for short).

Specifically, the network-side device in the embodiment of the present invention further includes: instructions or programs stored in the memory 805 and executable on the processor 804, and the processor 804 invokes the instructions or programs in the memory 805 to execute the modules shown in FIG. 7 . The implementation method and achieve the same technical effect, in order to avoid repetition, it is not repeated here.

Embodiments of the present application further provide a readable storage medium, where a program or an instruction is stored on the readable storage medium, and when the program or instruction is executed by a processor, the foregoing beam information acquisition method embodiment or beam information indication method embodiment is implemented and can achieve the same technical effect, in order to avoid repetition, it will not be repeated here.

Wherein, the processor is the processor in the terminal described in the foregoing embodiment. The readable storage medium includes a computer-readable storage medium, such as a computer read-only memory (Read-Only Memory, ROM), a random access memory (Random Access Memory, RAM), a magnetic disk or an optical disk, and the like.

An embodiment of the present application further provides a chip, where the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to run a network-side device program or instruction to realize the above beam information acquisition The method embodiment or the beam information indicates each process of the method embodiment, and can achieve the same technical effect, and to avoid repetition, details are not described here.

It should be understood that the chip mentioned in the embodiments of the present application may also be referred to as a system-on-chip, a system-on-chip, a system-on-chip, or a system-on-a-chip, or the like.

It should be noted that, herein, the terms "comprising", "comprising" or any other variation thereof are intended to encompass non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements, It also includes other elements not expressly listed or inherent to such a process, method, article or apparatus. Without further limitation, an element qualified by the phrase "comprising a..." does not preclude the presence of additional identical elements in a process, method, article or apparatus that includes the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in the reverse order depending on the functions involved. To perform functions, for example, the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. Additionally, features described with reference to some examples may be combined in other examples.

From the description of the above embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus a necessary general hardware platform, and of course hardware can also be used, but in many cases the former is better implementation. Based on this understanding, the technical solution of the present application can be embodied in the form of a software product in essence or in a part that contributes to the prior art, and the computer software product is stored in a storage medium (such as ROM/RAM, magnetic disk, CD-ROM), including several instructions to make a terminal (which may be a mobile phone, a computer, a server, or a network-side device, etc.) execute the methods described in the various embodiments of this application.

The embodiments of the present application have been described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific embodiments, which are merely illustrative rather than restrictive. Under the inspiration of this application, without departing from the scope of protection of the purpose of this application and the claims, many forms can be made, which all fall within the protection of this application.

Claims

A beam information acquisition method, applied to a terminal, wherein the beam information acquisition method includes:

Obtain first indication information, where the first indication information is used to indicate beam information of at least two terminals.
The method according to claim 1, wherein the first indication information is used to indicate beam information of a terminal group, and the terminal group includes the at least two terminals.
The method of claim 2, further comprising:

acquiring second indication information, where the second indication information is used to indicate grouping information of the terminal group;

Wherein, the second indication information includes an identifier of a terminal group, or the second indication information includes an identifier of the terminal group and an identifier of each terminal in the terminal group.
The method according to claim 2, wherein the first indication information includes at least one of the following:

The identity of the terminal group and one beam information;

at least one terminal identification and one beam information;

The identity of a terminal and the corresponding beam information;

The identifier of at least one terminal and the beam information corresponding to the identifier of each terminal.
The method according to claim 1, wherein the obtaining the first indication information comprises:

The first indication information is acquired through DCI signaling.
The method of claim 5, wherein the DCI signaling is located on the first set of common physical downlink control channels (PDCCH).
The method of claim 6, further comprising:

Obtain third indication information, where the third indication information is used to indicate time-frequency information required for monitoring the first group of common PDCCHs.
The method according to claim 7, wherein the third indication information includes at least one of the following:

Control resource set information corresponding to the first group of public PDCCHs;

Search space information corresponding to the first group of common PDCCHs.
The method of claim 6, further comprising:

First beam information used by the first set of common PDCCHs is determined.
The method of claim 9, wherein the determining the first beam information used by the first group of common PDCCHs comprises at least one of the following:

Determine the first beam information according to the synchronization signal/physical broadcast channel signal block SSB beam information that meets the preset condition measured by the terminal during initial access;

determining the first beam information according to the fourth indication information;

After the first time, according to the fourth indication information, determine the first beam information;

Before the first time, determine the first beam information according to the default beam information;

Wherein, the fourth indication information is used to indicate that the transmission configuration of the first group of common PDCCHs indicates TCI status information.
The method of claim 10, further comprising:

According to the TCI state information of the first group of common PDCCHs, the monitoring timing information of the first group of common PDCCHs is determined.
The method according to claim 11, wherein the determining the monitoring timing information of the first group of common PDCCHs according to the TCI state information of the first group of common PDCCHs comprises:

Obtain configuration information of the first search space, where the configuration information includes monitoring timing information; determine the monitoring timing information of the first group of public PDCCHs according to the TCI state information of the first group of public PDCCHs and a preset correspondence, and The preset corresponding relationship is the corresponding relationship between the monitoring timing information and the TCI status information of the group public PDCCH, and one TCI status information corresponds to at least one monitoring timing information;

Or, determine the synchronization signal/physical broadcast channel signal block SSB according to the source reference signal RS in the TCI state information of the first group of common PDCCHs; determine the monitoring of the first group of common PDCCHs according to the parameter information of the SSB timing information;

Alternatively, according to the correspondence between the TCI state information of the first group of common PDCCHs and the second search space, the monitoring timing information of the first group of common PDCCHs is determined, and the second search space is a search space numbered 0.
The method of claim 6, further comprising:

obtaining fifth indication information, where the fifth indication information is used to indicate the first information corresponding to the TCI status information of each of the terminals on the first group of public PDCCHs;

The first information includes at least one of the following:

TCI domain;

The sequence of TCI status information;

bit length of TCI status information;

DCI size.
The method of claim 13, further comprising:

For the fifth indication information sent by different sending and receiving points, first information corresponding to the TCI state information of the terminal in each of the fifth indication information is obtained respectively.
The method of claim 10, wherein,

In the case that the first beam information is indicated by MAC CE signaling, the first time is the time after the first preset duration of transmitting the ACK information of the MAC CE signaling;

Or, when the first beam information is indicated by the previous DCI, the first time is the time when the time interval between the PDCCH where the previous DCI is located and the current group of common PDCCHs is greater than or equal to a preset threshold, The PDCCH where the previous DCI is located is the previous group public PDCCH or the previous dedicated PDCCH;

Alternatively, in the case that the first beam information is indicated by RRC signaling, the first time is a time after receiving the second preset duration of RRC signaling.
The method of claim 10, wherein the default beam information includes one of the following:

During initial access, the terminal measures the SSB beam information that meets the preset conditions;

Beam information of the CORESET with the smallest CORESET ID in the current cell;

current beam information or original beam information, the original beam information refers to the beam used before the first time;

The beam information indicated by the TCI state with a preset identifier in the TCI state pool.
The method according to claim 6, wherein, when the number of terminals in the terminal group is greater than the number of TCI states that can be carried by DCI signaling, at least one of the following operations is performed:

obtaining sixth indication information, where the sixth indication information is used to instruct to monitor the second group of public PDCCHs;

acquiring the number of first TCI states configured by the network side device for the first group of public PDCCHs, where the number of the first TCI states is greater than or equal to the number of terminals in the terminal group;

Acquire at least two wireless network temporary identifier RNTI information of the first group of public PDCCHs, and different terminal groups use different RNTI information;

Obtain multiple sets of listening occasions corresponding to the first set of common PDCCHs.
The method of claim 10, further comprising:

Acquire at least two wireless network temporary identifier RNTI information of the first group of public PDCCHs, and different terminal groups use different RNTI information.
A beam information indication method, applied to a network side device, wherein the beam information indication method includes:

Send first indication information, where the first indication information is used to indicate beam information of at least two terminals.
The method according to claim 19, wherein the first indication information is used to indicate beam information of a terminal group, and the terminal group includes the at least two terminals.
The method of claim 20, further comprising:

sending second indication information, where the second indication information is used to indicate the grouping information of the terminal group;

The second indication information includes an identifier of a terminal group, or the second indication information includes an identifier of the terminal group and an identifier of each terminal in the terminal group.
The method of claim 21, further comprising:

obtaining beam information in the beam report of the terminal;

Allocate terminals with the same or similar beam information to the same terminal group;

The similarity of the beam information means that the difference between the spatial reception parameter values of different beam information is less than a preset threshold.
The method according to claim 20, wherein the first indication information includes at least one of the following:

Terminal group identification and a beam information;

at least one terminal identification and one beam information;

The identity of a terminal and the corresponding beam information;

The identifier of at least one terminal and the beam information corresponding to the identifier of each terminal.
The method according to claim 19, wherein the sending the first indication information comprises:

The first indication information is sent through DCI signaling.
The method of claim 24, wherein the DCI signaling is on the first set of common physical downlink control channels (PDCCH).
The method of claim 25, further comprising:

Send third indication information, where the third indication information is used to indicate time-frequency information required for monitoring the first group of common PDCCHs.
The method of claim 26, wherein the third indication information includes at least one of the following:

Control resource set information corresponding to the first group of public PDCCHs;

Search space information corresponding to the first group of common PDCCHs.
The method of claim 25, further comprising:

Determine the first beam information used by the first set of common PDCCHs.
The method of claim 28, wherein the determining the first beam information used by the first group of common PDCCHs comprises at least one of the following:

Determine the first beam information according to the synchronization signal/physical broadcast channel signal block SSB beam information that meets the preset condition measured by the terminal during initial access;

determining the first beam information according to the fourth indication information;

After the first time, according to the fourth indication information, determine the first beam information;

Before the first time, determine the first beam information according to the default beam information;

Wherein, the fourth indication information is used to indicate that the transmission configuration of the first group of common PDCCHs indicates TCI status information.
The method of claim 29, further comprising:

Send the fourth indication information.
The method of claim 29, wherein,

In the case that the first beam information is indicated by MAC CE signaling, the first time is the time after the first preset duration of transmitting the ACK information of the MAC CE signaling;

Or, when the first beam information is indicated by the previous DCI, the first time is the time when the time interval between the PDCCH where the previous DCI is located and the current group of common PDCCHs is greater than or equal to a preset threshold, The PDCCH where the previous DCI is located is the previous group public PDCCH or the previous dedicated PDCCH;

Or, in the case that the first beam information is indicated by RRC signaling, the first time is a time after the second preset duration of sending RRC signaling.
The method of claim 29, wherein the default beam information includes one of the following:

During initial access, the terminal measures the SSB beam information that meets the preset conditions;

Beam information of the CORESET with the smallest CORESET ID in the current cell;

Current beam information or original beam information, where the original beam information refers to the beam used before the first time;

The beam information indicated by the TCI state with a preset identifier in the TCI state pool.
The method of claim 30, further comprising:

Configuration information of the first search space is sent, where the configuration information includes listening opportunity information.
The method of claim 25, further comprising:

sending fifth indication information, where the fifth indication information is used to indicate the first information corresponding to the TCI status information of each of the terminals on the first group of common PDCCHs;

The first information includes at least one of the following:

TCI domain;

The sequence of TCI status information;

bit length of TCI status information;

DCI size.
The method according to claim 25, wherein when the number of terminals in the terminal group is greater than the number of TCI states that can be carried by DCI signaling, at least one of the following operations is performed;

sending sixth indication information, where the sixth indication information is used to instruct the first terminal in the terminal group to monitor the second group of public PDCCHs;

Configuring a first number of TCI states for the first group of public PDCCHs, where the number of first TCI states is greater than or equal to the number of terminals in the terminal group;

Configure at least two wireless network temporary identifier RNTI information for the first group of public PDCCHs, and different terminal groups use different RNTI information;

Configuring the TCI state of the first group of public PDCCHs corresponds to multiple groups of listening opportunities.
The method of claim 25, further comprising:

At least two wireless network temporary identifier RNTI information is configured for the first group of public PDCCHs, and different terminal groups use different RNTI information.
An apparatus for obtaining beam information, applied to a terminal, wherein the apparatus for obtaining beam information includes:

The first obtaining module is configured to obtain first indication information, where the first indication information is used to indicate beam information of at least two terminals.
A terminal, comprising a processor, a memory, and a program or instruction stored on the memory and executable on the processor, the program or instruction being executed by the processor to implement any one of claims 1 to 18. One of the steps of the beam information acquisition method.
A beam information indicating device, applied to network side equipment, wherein the beam information indicating device includes:

The first sending module is configured to send first indication information, where the first indication information is used to indicate beam information of at least two terminals.
A network-side device, comprising a processor, a memory, and a program or instruction stored on the memory and running on the processor, the program or instruction being executed by the processor to achieve as claimed in claim 19 to 36. The steps of any one of the beam information indication methods.
A readable storage medium, on which a program or an instruction is stored, and when the program or instruction is executed by a processor, the steps of the method for acquiring beam information according to any one of claims 1 to 18 are implemented or The steps of the beam information indication method according to any one of claims 19 to 36.
A chip comprising a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used for running programs or instructions to implement the beam according to any one of claims 1 to 18 The steps of the information acquisition method or the steps of the beam information indication method as claimed in any one of claims 19 to 36.
A computer program product, the program product being stored in a non-transitory storage medium, the program product being executed by at least one processor to implement the beam information acquisition method according to any one of claims 1 to 18 , or the steps of the beam information indication method according to any one of claims 19 to 36 .
A terminal configured to perform the steps of the beam information acquisition method according to any one of claims 1 to 18.
A network side device configured to perform the steps of the beam information indication method according to any one of claims 19 to 36.