CN114337755A

CN114337755A - Beam information indicating and acquiring method, device, terminal and network side equipment

Info

Publication number: CN114337755A
Application number: CN202011063387.7A
Authority: CN
Inventors: 杨宇
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2020-09-30
Filing date: 2020-09-30
Publication date: 2022-04-12
Also published as: WO2022068875A1

Abstract

The application discloses a method, a device, a terminal and network side equipment for indicating and acquiring beam information, and belongs to the technical field of communication. The method for acquiring the beam information comprises the following steps: acquiring first indication information, wherein the first indication information is used for indicating beam information of at least two terminals. According to the embodiment of the application, the beam information of the at least two terminals is indicated through the first indication information, so that the purpose of performing common beam indication on the at least two terminals through the first indication information can be achieved, and further, when the number of the terminals is large, signaling overhead can be reduced.

Description

Beam information indicating and acquiring method, device, terminal and network side equipment

Technical Field

The present application relates to the field of communications technologies, and in particular, to a method, an apparatus, a terminal, and a network side device for indicating and acquiring beam information.

Background

After the beam measurement and the beam report, the network may perform beam indication on downlink and uplink channels or reference signals, so as to establish a beam link between the network and a User Equipment (UE, also referred to as a terminal) UE, thereby implementing transmission of the channels or the reference signals. However, in the related art, the beam indication mechanisms for various channels and reference signals are different, and more control signaling is required, resulting in larger signaling overhead.

Disclosure of Invention

The embodiment of the application provides a method, a device, a terminal and a network side device for indicating and acquiring beam information, which can solve the problem that in the related technology, beam indication mechanisms for various channels and reference signals are different, more control signaling is needed, and larger signaling overhead is caused.

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

acquiring first indication information, wherein the first indication information is used for indicating beam information of at least two terminals.

In a second aspect, there is provided a beam information obtaining apparatus, 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, and is applied to a network side device, and the method includes:

and sending first indication information, wherein the first indication information is used for indicating beam information of at least two terminals.

In a fourth aspect, a beam information indicating apparatus is provided, and is applied to a network side device, and 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.

In a fifth aspect, there is provided a terminal comprising a processor, a memory, and a program or instructions stored on the memory and executable on the processor, which when executed by the processor, performs the steps of the method according to the first aspect.

In a sixth aspect, a network-side device is provided, which comprises a processor, a memory, and a program or instructions stored on the memory and executable on the processor, and when executed by the processor, the program or instructions implement the steps of the method according to the third aspect.

In a seventh aspect, there is provided a readable storage medium on which a program or instructions are stored, which program or instructions, when executed by a processor, implement the steps of the method according to the first aspect, or implement the steps of the method according to the third aspect.

In an eighth aspect, there is provided a chip comprising a processor and a communication interface, the communication interface being coupled to the processor, the processor being configured to execute a program or instructions to implement the method according to the first aspect, or to implement the method according to the third aspect.

In the embodiment of the application, the beam information of the at least two terminals is indicated through the first indication information, so that the purpose of performing common beam indication on the at least two terminals through the first indication information can be achieved, and further, when the number of the terminals is large, signaling overhead can be reduced.

Drawings

Fig. 1 is a block diagram of a network system to which an embodiment of the present application is applicable;

fig. 2 is a schematic flowchart illustrating a beam information obtaining method according to an embodiment of the present application;

fig. 3 is a flowchart illustrating a method for indicating beam information according to an embodiment of the present application;

fig. 4 is a block diagram of a beam information acquiring apparatus according to an embodiment of the present application;

fig. 5 is a block diagram showing a configuration of a communication apparatus according to an embodiment of the present application;

fig. 6 is a block diagram showing a configuration of a terminal according to an embodiment of the present application;

fig. 7 is a block diagram of a beam information indicating apparatus according to an embodiment of the present application;

fig. 8 is a block diagram showing a configuration of a network device according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments that can be derived from the embodiments given herein by a person of ordinary skill in the art are intended to be within the scope of the present disclosure.

The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used are interchangeable under appropriate circumstances such that embodiments of the application can be practiced in sequences other than those illustrated or described herein, and the terms "first" and "second" used herein generally do not denote any order, nor do they denote any order, for example, the first object may be one or more. In addition, "and/or" in the specification and the claims means at least one of connected objects, and a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.

It is noted that the techniques described in the embodiments of the present application are not limited to Long Term Evolution (LTE)/LTE Evolution (LTE-Advanced) systems, but may also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), 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 techniques can be used for both the above-mentioned systems and radio technologies, as well as for other systems and radio technologies. However, the following description describes a New Radio (NR) system for purposes of example, and NR terminology is used in much of the description below, although the techniques may also be applied to applications other than NR system applications, such as 6th Generation (6G) communication systems.

Fig. 1 shows a block diagram of a wireless communication system to which embodiments of the present application are applicable. The wireless communication system includes a terminal 11 and a network-side device 12. Wherein, the terminal 11 may also be called as a terminal Device or a User Equipment (UE), the terminal 11 may be a Mobile phone, a Tablet Personal Computer (Tablet Personal Computer), a Laptop Computer (Laptop Computer) or a notebook Computer, a Personal Digital Assistant (PDA), a palmtop Computer, a netbook, a super-Mobile Personal Computer (UMPC), a Mobile Internet Device (MID), a Wearable Device (Wearable Device) or a vehicle-mounted Device (VUE), a pedestrian terminal (PUE), and other terminal side devices, the Wearable Device includes: bracelets, earphones, glasses and the like. 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, where 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 (BSS), an Extended Service Set (ESS), a node B, an evolved node B (eNB), a home node B, a WLAN access Point, a WiFi node, a Transmit Receiving Point (TRP), or some other suitable terminology in the field, as long as the same technical effect is achieved, the Base Station is not limited to a specific technical vocabulary, and it should be noted that, in the embodiment of the present application, only the Base Station in the NR system is taken as an example, but a 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 made.

One, regarding beam indication (beam indication) mechanism:

after the beam measurement and the beam report, the network may perform beam indication on the downlink and uplink channels or reference signals, so as to establish a beam link between the network and the UE, thereby implementing transmission of the channels or the reference signals.

1. For the beam Indication of a Physical Downlink Control Channel (PDCCH), the network configures K Transmission Configuration Indication states (TCI states) for each Control Resource Set (Control Resource Set core) using Radio Resource Control (RRC) signaling, and when K >1, 1 TCI state is indicated or activated by a Medium Access Control Element (MAC CE), and when K >1, no additional MAC CE command is needed. When monitoring the PDCCH, the UE uses the same Quasi-co-location (QCL) for all Search spaces (Search spaces) in the CORESET, i.e., uses the same TCI state to monitor the PDCCH. The Reference Signal (RS) in the TCI State, for example, a periodic Channel State Information Reference Signal resource (CSI-RS), a semi-persistent CSI-RS resource, a Synchronization Signal (SSB), and the like, and a Physical Downlink Control Channel-specific Demodulation Reference Signal (UE-specific PDCCH DMRS) port of the terminal are spatial QCL. The UE can know which receiving beam is used to receive the PDCCH according to the TCI state.

2. For beam indication of a Physical Downlink Shared Channel (PDSCH), a network configures M TCI states through RRC signaling, activates 2N TCI states using a MAC CE command, and then notifies the TCI states through N TCI fields of Downlink Control Information (DCI), where a Reference Signal in the TCI states and a Demodulation Reference Signal (Demodulation Reference Signal) port of the PDSCH to be scheduled are DMRSs of the QCL. The UE can know which receiving beam is used 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 resource through RRC signaling. When the CSI-RS type is semi-persistent CSI-RS, the network indicates QCL information thereof when activating one CSI-RS resource from the RRC-configured CSI-RS resource set through a MAC CE command. When the CSI-RS type is the aperiodic CSI-RS, the network configures QCL for the CSI-RS resource through RRC signaling, and uses the DCI to trigger the CSI-RS.

4. For the beam indication of a Physical Uplink Control Channel (PUCCH), the network configures Spatial relationship information for each PUCCH resource through Physical Uplink Control Channel Spatial relationship information (PUCCH-Spatial relationship info) using RRC signaling, and when the Spatial relationship information configured for the PUCCH resource includes a plurality of pieces, indicates or activates one of the pieces of parameter Spatial relationship information using MAC-CE. When the spatial relationship information configured for the PUCCH resource includes only 1, no additional MAC CE command is required.

5. For beam Indication of a Physical Uplink Shared Channel (PUSCH), spatial relationship information of the PUSCH is that when DCI carried by a PDCCH schedules the PUSCH, each SRI site (code point) of an Uplink Scheduling Request Indication field (SRI field) in the DCI indicates one 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 (SRS), when the SRS type is periodic SRS, the network configures spatial relationship information for SRS resources through RRC signaling. When the SRS type is semi-persistent SRS, the network activates one from a set of RRC configured spatial relationship information through MAC CE signaling. When the SRS type is the aperiodic SRS, the network configures spatial relationship information for the SRS resource through RRC signaling, and may also update the spatial relationship information of the aperiodic SRS resource using MAC CE signaling.

Second, regarding beam indication in a multiple-Transmission Reception Point (multi-TRP) scene:

the 3GPP release 16 introduces a multi-TRP scenario, and can be divided into single DCI transmission and multiple DCI transmission according to the transmission mode of control information, the former is to transmit DCI at one TRP to schedule data transmission on multiple TRPs, and the latter is to allow DCI transmitted at multiple TRPs to schedule data transmission on respective TRPs.

When the DCI schedules the PDSCH, when a scheduling interval (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 provides for the following:

1. for multi-Transmission of DCI based on multiple Transmission Reception points or antennas (multi-Transmission Reception Point/multi-Transmission Reception Panel), if a control resource Pool Index (CORESET Pool Index) is configured, when the scheduling interval is less than or equal to a preset threshold, the UE assumes that PDSCH DMRS ports are QCL with reference information in QCL information of a PDCCH configured with a control resource Pool Index minimum value (CORESET with lowest Index) of the same control resource Pool Index value.

The CORESET with local Index is the CORESET with local Index in the CORESET that needs to be monitored by the UE and corresponds to the respective CORESET Pool Index value in the latest slot (latest slot). Where a latest slot refers to the presence of at least one slot in the serving cell active wideband Part (BWP) associated with the CORESET Pool Index of the corresponding CORESET Pool Index.

If the UE does not support the characteristic, the rule of 3GPP Release 15 is reused no matter how the CORESET Pool Index is configured, namely the CORESET with the lowest Index is the CORESET with the lowest Index in the CORESET which needs the UE to monitor in the latest slot, and the CORESET Pool Index is irrelevant.

2. For single-Transmission-Reception-Point or antenna (single-single-Transmission-Reception-Point/single-Transmission-Reception-Panel) based DCI single Transmission, when the scheduling interval is less than or equal to a preset threshold and after receiving an activation command of the TCI state of the UE-specific PDSCH, the UE assumes that the PDSCH DMRS port uses the QCL parameter of the preset TCI state. That is, among the activated TCI states for the PDSCH, a TCI state corresponding to the lowest code bit (lowest code point) is selected from among TCI code bits containing 2 different TCI states.

If all TCI codepoints correspond to a single TCI state, the behavior of Release 15 is used.

The beam information mentioned above may also be referred to as spatial relationship (spatial relationship) information, spatial domain transmission filter (spatial domain transmission filter) information, spatial filter (spatial filter) information, transmission configuration indication state (TCI state) information, quasi co-location (QCL) information, or QCL parameters. Here, the downlink beam information may be generally represented by TCI state information or QCL information, and the uplink beam information may be generally represented by spatial relationship information. The identity of Panel may be: the identifier of the antenna panel, the identifier of the reference signal resource set, the identifier of the TCI state, the identifier of the QCL information, the identifier of the spatial relationship, or the like.

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

step 201: acquiring first indication information, wherein the first indication information is used for indicating beam information of at least two terminals.

Here, the first indication information may indicate a common beam to at least two terminals. For example, for a high frequency communication system, a single beam mode may be generally used for a communication link between a network and a terminal, that is, beam directions of a control channel, a data channel, a reference signal, and the like are substantially the same, and in this case, it may be considered that a common beam indication is performed by using the first indication information, and it is not necessary to perform a beam indication for each channel and reference signal. The method and the device can perform the common beam indication aiming at the condition that the number of the terminals is large, thereby reducing the signaling overhead and ensuring the flexibility and the robustness of the beam indication.

According to the beam information obtaining method, the beam information of the at least two terminals is indicated through the first indication information, so that the purpose of performing common beam indication on the at least two terminals through the first indication information can be achieved, and signaling overhead can be reduced when the number of the terminals is large.

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

In the embodiment of the application, a plurality of terminals can be grouped, and then the beam information of the terminal group is indicated through the first indication information, so that the aim of saving the overhead of the control signaling is fulfilled.

Optionally, the beam information acquiring method further includes: acquiring second indication information, wherein the second indication information is used for indicating 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 a terminal group and an identifier of each terminal in the terminal group.

Optionally, the network side device indicates the grouping of the terminals based on information such as Synchronization Signal/physical broadcast channel Signal block (SSB) Resource Indicator (RI)/CSI-RS Resource Indicator (CRI) in a beam report (beam report) of each terminal, that is, according to beam information carried in the beam report, terminals with the same or similar beam information (even with less inter-beam interference) may be grouped.

Optionally, the obtaining of the second indication information includes: and acquiring the second indication information through Radio Resource Control (RRC) signaling, MAC CE signaling or DCI signaling. That is, the Network side device may indicate the terminal grouping information to the terminal by using RRC signaling, MAC CE signaling, or DCI signaling, where the second indication information may carry identification (UE ID) information of the terminal, such as Cell Radio Network Temporary Identifier (C-RNTI) of the UE.

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

the identification of the terminal group and a beam information; wherein all UEs in the terminal group can use the same beam information;

identification of at least one terminal and one beam information; wherein the same one beam information can be used by the part of terminals;

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

the method comprises the steps that the identification of at least one terminal and the beam information corresponding to the identification of each terminal; wherein each UE may use the respective beam information.

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

Optionally, the beam information acquiring method further includes: and acquiring third indication information, wherein the third indication information is used for indicating time-frequency information required for monitoring the first group of public PDCCHs.

For example, the third indication information may be obtained by obtaining network signaling (e.g., MAC CE signaling). Optionally, the third indication information is sent by the network side device when a state of at least one terminal in the terminal group changes (for example, moves or rotates), or the state change reaches a preset condition (for example, a moving distance reaches a preset distance or a rotation angle reaches a predetermined angle).

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

control resource set (CORESET) information corresponding to the first group of common PDCCH;

search space (search space) information corresponding to the first set of common PDCCH.

In an embodiment of the present application, after the terminal moves, another SSB meeting a preset condition may be determined by measuring the SSB, the network side device sends, according to a mapping relationship or an association relationship between the SSB and the COSESET and/or the search space, core space information and/or search space information to the terminal, and the terminal may obtain, according to the received core space information and/or TCI state information of the search space information, TCI state information of the first group of common PDCCH to monitor the first group of common PDCCH.

Optionally, the beam information acquiring method further includes: determining first beam information used by the first set of common PDCCHs. Optionally, the determining the first beam information used by the first set of common PDCCHs comprises at least one of:

determining the first beam information according to the SSB beam information of a synchronous signal/physical broadcast channel signal block meeting a preset condition measured by a terminal during initial access;

determining the first beam information according to fourth indication information;

determining the first beam information according to fourth indication information after a first time;

determining the first beam information according to default beam information before a first time;

wherein the fourth indication information is used for indicating TCI status information of the first group of common PDCCHs.

Here, the fourth indication information may be acquired through RRC signaling or MAC CE signaling,

optionally, in a case that the first beam information is indicated by MAC CE signaling, the first time is a time after a first preset time duration of transmission of Acknowledgement (ACK) information of the MAC CE signaling;

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

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

In this embodiment, the first time may be understood as an effective time of the first beam information. In a case where the first beam information is indicated in different manners, the first time represents a different time. For example, when the first beam information is indicated by the MAC CE signaling, the first time refers to a time after receiving a Hybrid automatic repeat request acknowledgement (HARQ-ACK) of the MAC CE signaling for a first preset time period after the ACK, where the HARQ-ACK includes an ACK and a Negative Acknowledgement (NACK).

Optionally, the default beam information includes one of:

the method comprises the steps that when the terminal is initially accessed, the terminal measures SSB wave beam information meeting preset conditions;

beam information of the CORESET of which the current cell has the smallest CORESET ID;

current beam information or primary beam information, the primary beam information being a beam used before the first time;

and the beam information of the TCI state indication with the preset identification is in the TCI state pool.

Optionally, the beam information acquiring method further includes: and determining the monitoring opportunity information of the first group of public PDCCH according to the TCI state information of the first group of public PDCCH. Determining monitoring opportunity information of the first group of public PDCCHs according to the TCI state information of the first group of public PDCCHs comprises:

acquiring configuration information of a first search space, wherein the configuration information comprises monitoring opportunity information (monitoring opportunity); determining monitoring opportunity information of the first group of public PDCCHs according to TCI state information of the first group of public PDCCHs and a preset corresponding relationship, wherein the preset corresponding relationship is the corresponding relationship between the monitoring opportunity information and the TCI state information of the group of public PDCCHs, and one TCI state information corresponds to at least one monitoring opportunity information;

or, without configuring by a network side device, determining monitoring opportunity information of the first group of common PDCCHs according to a rule, that is, determining a synchronization Signal/physical broadcast channel Signal block SSB according to a source Reference Signal (RS) in TCI state information of the first group of common PDCCHs; determining monitoring opportunity information of the first group of public PDCCH according to the parameter information of the SSB; for example, the source RS (i.e., source RS) is SSB, or the QCL source of the source RS is SSB;

or determining the monitoring opportunity information of the first group of public PDCCH according to the corresponding relation between the TCI state information of the first group of public PDCCH and a second search space, wherein the second search space is a search space with the number of 0. That is to say, the TCI status information of the first group of common PDCCHs has a correspondence relationship with the search space numbered 0, and the monitoring timing information of the first group of common PDCCHs may be determined according to the configuration information of the search space and the correspondence relationship.

Here, the preset correspondence may be carried by the configuration information, or may be agreed by a protocol.

Optionally, the beam information acquiring method further includes: acquiring fifth indication information, wherein the fifth indication information is used for indicating first information corresponding to TCI state information of each terminal on a first group of public PDCCHs;

the first information includes at least one of:

a TCI field;

the order of the TCI status information;

the bit length of the TCI status information;

DCI size, i.e., DCI size.

The fifth indication information may be transmitted by means of transmitting network signaling (e.g., MAC CE signaling).

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

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

Optionally, in a case that 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:

and acquiring sixth indication information, wherein the sixth indication information is used for indicating to monitor a second group of common PDCCHs. Here, for a terminal newly joined to the terminal group, the sixth indication information instructs the terminal to monitor a second group of common PDCCHs, i.e., PDCCHs on another control resource set (CORESET) and/or a search space (search space). That is, the core set and the search space of the second set of common PDCCH are different from those of the first set of common PDCCH.

And acquiring a first TCI state quantity configured for the first group of public PDCCHs by the network side equipment, wherein the first TCI state quantity is greater than or equal to the quantity of the terminals in the terminal group. Here, the number of the first TCI states configured for the first group of common PDCCHs by the network side device may satisfy the number of terminals in the terminal group, for example, the first group of common PDCCHs is extended from 3bits to 4bits to support beam information indication of more terminals, and as the TCI states (TCI states) are increased, the monitoring time is increased, so that more terminals may be supported.

Acquiring at least two Radio Network Temporary Identities (RNTIs) of the first group of common PDCCH, wherein different terminal groups use different RNTI information. Here, the obtaining may be according to network side configuration, or according to agreement.

And acquiring a plurality of groups of monitoring occasions corresponding to the first group of public PDCCH. When the number of terminals is large, the terminals may be divided into a plurality of parts, and the TCI state of the first group of common PDCCH is configured to correspond to a plurality of groups of monitoring occasions (e.g., parity monitoring occasions), so that each part of terminals may monitor according to different monitoring occasions corresponding to the TCI state. If the number of terminals increases, the monitoring occasions of the first group of common PDCCH are divided into two groups according to the odd and even numbers, and the two groups of common PDCCH are respectively transmitted by using different RNTI information, and a plurality of terminals can determine the monitoring occasions of each terminal on the first group of common PDCCH to be odd number monitoring occasions or even number monitoring occasions according to the different RNTI information, wherein the odd and even number monitoring occasions can correspond to the same TCI state.

Optionally, the beam information acquiring method further includes: acquiring at least two Radio Network Temporary Identifiers (RNTI) information of the first group of public PDCCH, wherein different terminal groups use different RNTI information.

That is, the network side device may configure multiple RNTI information for the first group of common PDCCH, and thus, 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 a plurality of portions (i.e., a plurality of 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, and includes:

step 301: and sending first indication information, wherein the first indication information is used for indicating beam information of at least two terminals.

Here, the first indication information may indicate a common beam to at least two terminals. The method and the device can perform the common beam indication aiming at the condition that the number of the terminals is large, thereby reducing the signaling overhead and ensuring the flexibility and the robustness of the beam indication.

According to the beam information indicating method, the beam information of the at least two terminals is indicated through the first indication information, so that the purpose of performing common beam indication on the at least two terminals through the first indication information can be achieved, and signaling overhead can be reduced when the number of the terminals is large.

Optionally, the beam information indication method further includes: sending second indication information, wherein the second indication information is used for indicating grouping information of the terminal group;

Optionally, the sending the second indication information includes: and sending the second indication information through Radio Resource Control (RRC) signaling, MAC CE signaling or DCI signaling. That is, the network side device may indicate the terminal grouping information to the terminal using RRC signaling, MAC CE signaling, or DCI signaling, where the second indication information may 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; terminals with the same or similar beam information are distributed to the same terminal group; the beam information is similar, namely the difference value between the space receiving parameter values of different beam information is smaller than a preset threshold value.

That is, the network side device instructs the terminals to group based on the information such as the SSB RI/CRI in the beam report of each terminal, that is, according to the beam information carried in the beam report, terminals with the same or similar beam information (even with less interference between beams) can be grouped into a group.

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

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

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

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

Optionally, the sending the first indication information includes:

and transmitting the first indication information through DCI signaling.

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

Optionally, the beam information indication method further includes:

and sending third indication information, wherein the third indication information is used for indicating time-frequency information required for monitoring the first group of public PDCCHs. Optionally, the third indication information is sent by the network side device when a state of at least one terminal in the terminal group changes (for example, moves or rotates), or the state change reaches a preset condition (for example, a moving distance reaches a preset distance or a rotation angle reaches a predetermined angle).

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

control resource set information corresponding to the first group of common PDCCHs;

search space information corresponding to the first set of common PDCCHs.

Optionally, the beam information indication method further includes: first beam information used by a first set of common PDCCHs is determined. Optionally, the determining the first beam information used by the first set of common PDCCHs includes at least one of:

wherein the fourth indication information is used for indicating that the transmission configuration of the first group of common PDCCHs indicates TCI status information.

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

Optionally, when the first beam information is indicated by MAC CE signaling, the first time is a time after a first preset time duration for 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 a second preset time period for sending RRC signaling.

In this embodiment, the first time may be understood as an effective time of the first beam information. In a case where the first beam information is indicated in different manners, the first time represents a different time. For example, in the case that the first beam information is indicated by MAC CE signaling, the first time refers to a time after a first preset time duration after HARQ-ACK of the MAC CE signaling is received as ACK, where the HARQ-ACK includes ACK and NACK.

Optionally, the default beam information includes one of:

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

and sending configuration information of the first search space, wherein the configuration information comprises monitoring opportunity information.

Optionally, the beam information indication method further includes:

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

the first information includes at least one of:

a TCI field;

the order of the TCI status information;

the bit length of the TCI status information;

DCI size, i.e., DCI size.

Here, the network side device may transmit the fifth indication information by transmitting network signaling (e.g., MAC CE signaling). The TCI state information interpretation modes for the common beams of the downlink and uplink of each terminal may be independent from each other for the group common PDCCH from different TRPs.

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

and sending sixth indication information, wherein the sixth indication information is used for indicating the first terminal in the terminal group to monitor a second group of public PDCCHs. Here, for a terminal newly joined to the terminal group, the sixth indication information indicates that the terminal monitors a second group of common PDCCHs, i.e., PDCCHs on another control resource set and/or search space. That is, the control resource set and the search space of the second set of common PDCCHs are different from those of the first set of common PDCCHs.

Configuring a first TCI state quantity for the first group of the public PDCCH, wherein the first TCI state quantity is greater than or equal to the quantity of the terminals in the terminal group. Here, the number of the first TCI states configured for the first group of common PDCCHs by the network side device may satisfy the number of terminals in the terminal group, for example, the first group of common PDCCHs is extended from 3bits to 4bits to support beam information indication of more terminals, and as the TCI states (TCI states) are increased, the monitoring time is increased, so that more terminals may be supported.

Configuring at least two Radio Network Temporary Identifiers (RNTI) information for the first group of public PDCCH, wherein different terminal groups use different RNTI information;

configuring the TCI state of the first set of common PDCCH to correspond to multiple sets of monitoring occasions. When the number of terminals is large, the terminals may be divided into a plurality of parts, and the TCI state of the first group of common PDCCH is configured to correspond to a plurality of groups of monitoring occasions (e.g., parity monitoring occasions), so that each part of terminals may monitor according to different monitoring occasions corresponding to the TCI state. If the number of terminals increases, the monitoring occasions of the first group of common PDCCH are divided into two groups according to the odd and even numbers, and the two groups of common PDCCH are respectively transmitted by using different RNTI information, and a plurality of terminals can determine the monitoring occasions of each terminal on the first group of common PDCCH to be odd number monitoring occasions or even number monitoring occasions according to the different RNTI information, wherein the odd and even number monitoring occasions can correspond to the same TCI state.

Optionally, the beam information indication method further includes: configuring at least two pieces of Radio Network Temporary Identifier (RNTI) information for the first group of the public PDCCH, wherein different terminal groups use different RNTI information.

According to the beam information indicating method, the beam information of the at least two terminals is indicated through the first indication information, so that the purpose of performing common beam indication on the at least two terminals through the first indication information can be achieved, and further, when the number of the terminals is large, signaling overhead can be reduced. .

It should be noted that, in the beam information acquisition method provided in the embodiment 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 embodiment of the present application, a beam information acquiring apparatus executes a beam information acquiring method as an example, and the beam information acquiring apparatus provided in the embodiment of the present application is described.

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

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

In the beam information obtaining apparatus in the 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 acquiring apparatus 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 beam information obtaining apparatus according to the embodiment of the present application, the first indication information includes at least one of:

the identification of the terminal group and a beam information;

identification of at least one terminal and one beam information;

an identity of a terminal and corresponding beam information;

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

and a third obtaining module, configured to 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.

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

search space information corresponding to the first set of common PDCCHs.

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

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

a first determining unit, configured to determine first beam information according to synchronization signal/physical broadcast channel signal block SSB beam information satisfying a preset condition measured by a terminal during initial access;

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

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

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

a second determining module, configured to determine, according to the TCI status information of the first group of common PDCCHs, monitoring opportunity information of the first group of common PDCCHs.

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

a fifth determining unit, configured to obtain configuration information of the first search space, where the configuration information includes monitoring opportunity information; determining monitoring opportunity information of the first group of public PDCCHs according to TCI state information of the first group of public PDCCHs and a preset corresponding relationship, wherein the preset corresponding relationship is the corresponding relationship between the monitoring opportunity information and the TCI state information of the group of public PDCCHs, and one TCI state information corresponds to at least one monitoring opportunity information;

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

a seventh determining unit, configured to determine monitoring opportunity information of the first group of common PDCCHs according to a correspondence between TCI state information of the first group of common PDCCHs and a second search space, where the second search space is a search space numbered 0.

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

the first information includes at least one of:

a TCI field;

the order of the TCI status information;

the bit length of the TCI status information;

a DCI size.

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

In the beam information obtaining apparatus of the embodiment of the present application, when the first beam information is indicated by an MAC CE signaling, the first time is a time after a first preset time length of transmission of ACK information of the MAC CE signaling;

In the beam information obtaining apparatus according to the embodiment of the present application, the default beam information includes one of the following items:

In the beam information obtaining apparatus of the embodiment of the present application, when the number of terminals in a 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:

acquiring sixth indication information, wherein the sixth indication information is used for indicating to monitor a second group of public PDCCHs;

acquiring a first TCI state quantity configured for the first group of public PDCCHs by network side equipment, wherein the first TCI state quantity is greater than or equal to the quantity of terminals in the terminal group;

acquiring RNTI information of at least two radio network temporary identifiers of the first group of public PDCCH, wherein different terminal groups use different RNTI information;

and acquiring a plurality of groups of monitoring occasions corresponding to the first group of public PDCCH.

a sixth obtaining module, configured to obtain at least two radio network temporary identifiers RNTI information of the first group of common PDCCHs, where different terminal groups use different RNTI information.

The beam information acquiring device of the embodiment of the application indicates the beam information of at least two terminals through the first indication information, so that the purpose of indicating the common beam of the at least two terminals through the first indication information can be achieved, and further, when the number of the terminals is large, signaling overhead can be reduced. .

The beam information acquiring apparatus in the 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 can be a mobile terminal or a non-mobile terminal. By way of example, the mobile terminal may include, but is not limited to, the above-listed type of terminal 11, and the non-mobile terminal may be a server, a Network Attached Storage (NAS), a Personal Computer (PC), a Television (TV), a teller machine, a kiosk, or the like, and the embodiments of the present application are not limited in particular.

The beam information acquiring apparatus in the 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, and embodiments of the present application are not limited specifically.

The beam information obtaining apparatus provided in the embodiment of the present application can implement each process implemented by the method embodiment of fig. 2, and achieve the same technical effect, and is not described here again to avoid repetition.

Optionally, as shown in fig. 5, an embodiment of the present application further provides a communication device 500, which includes a processor 501, a memory 502, and a program or an instruction stored in the memory 502 and executable on the processor 501, for example, when the communication device 500 is a terminal, the program or the instruction is executed by the processor 501 to implement the processes of the embodiment of the beam information obtaining method applied to the terminal, and the same technical effect can be achieved. When the communication device 500 is a network device, the program or the instruction is executed by the processor 501 to implement the processes of the beam information indication method embodiment applied to the network device side, and the same technical effects can be achieved, and are not described herein again to avoid repetition.

Fig. 6 is a schematic diagram of a hardware structure of a terminal for implementing the 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 the like.

Those skilled in the art will appreciate that the terminal 600 may further include a power supply (e.g., a battery) for supplying power to various components, and the power supply may be logically connected to the processor 610 through a power management system, so as to implement functions of managing charging, discharging, and power consumption through the power management system. The terminal structure shown in fig. 6 does not constitute a limitation of the terminal, and the terminal may include more or less components than those shown, or combine some components, or have a different arrangement of components, and will not be described again here.

It is to be understood that, in the embodiment of the present application, the input Unit 604 may include a Graphics Processing Unit (GPU) 6041 and a microphone 6042, and the Graphics Processing Unit 6041 processes image data of a still picture or a video obtained by an image capturing apparatus (such as a camera) in a video capturing mode or an image capturing mode. The display unit 606 may include a display panel 6061, and the display panel 6061 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. A touch panel 6071, also referred to as a touch screen. The touch panel 6071 may include two parts of a touch detection device and a touch controller. Other input devices 6072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which are not described in detail herein.

In the embodiment of the present application, the radio frequency unit 601 receives downlink data from a network side device and then processes the downlink data in the processor 610; in addition, the uplink data is sent to the network side equipment. In general, 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.

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

Processor 610 may include one or more processing units; alternatively, the processor 610 may integrate an application processor, which primarily handles operating system, user interface, and applications or instructions, etc., and a modem processor, which primarily handles wireless communications, such as a baseband processor. It will be appreciated that the modem processor described above 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.

The terminal of the embodiment of the application indicates the beam information of the at least two terminals through the first indication information, so that the purpose of performing common beam indication on the at least two terminals through the first indication information can be achieved, and further, when the number of the terminals is large, signaling overhead can be reduced. .

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

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

the identification of the terminal group and a beam information;

identification of at least one terminal and one beam information;

an identity of a terminal and corresponding beam information;

Optionally, the obtaining the first indication information includes:

and acquiring the first indication information 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 common PDCCHs.

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

search space information corresponding to the first set 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 set of common PDCCHs comprises at least one of:

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

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

acquiring configuration information of a first search space, wherein the configuration information comprises monitoring opportunity information; determining monitoring opportunity information of the first group of public PDCCHs according to TCI state information of the first group of public PDCCHs and a preset corresponding relationship, wherein the preset corresponding relationship is the corresponding relationship between the monitoring opportunity information and the TCI state information of the group of public PDCCHs, and one TCI state information corresponds to at least one monitoring opportunity information;

or, determining a synchronization signal/physical broadcast channel signal block SSB according to a source reference signal RS in the TCI status information of the first group of common PDCCHs; determining monitoring opportunity information of the first group of public PDCCH according to the parameter information of the SSB;

or determining the monitoring opportunity information of the first group of public PDCCH according to the corresponding relation between the TCI state information of the first group of public PDCCH and a second search space, wherein the second search space is a search space with the number of 0.

Optionally, the radio frequency unit 601 is further configured to obtain fifth indication information, where the fifth indication information is used to indicate first information corresponding to TCI status information of each terminal on a first group of common PDCCHs;

the first information includes at least one of:

a TCI field;

the order of the TCI status information;

the bit length of the TCI status information;

a DCI size.

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

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

Optionally, the default beam information includes one of:

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

Optionally, the radio frequency unit 601 is further configured to obtain at least two radio network temporary identifiers RNTI information of the first group of common PDCCHs, where different terminal groups use different RNTI information.

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, and includes:

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

In the beam information indicating apparatus in the 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 of the embodiment of the 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 a beam report of the terminal;

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

the beam information is similar, namely the difference value between the space receiving parameter values of different beam information is smaller than a preset threshold value.

In the beam information indicating apparatus according to the embodiment of the present application, the first indication information includes at least one of:

a terminal group identifier and a beam information;

identification of at least one terminal and one beam information;

an identity of a terminal and corresponding beam information;

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

a first sending unit, configured to send the first indication information through DCI signaling.

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

and a third sending module, configured to 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.

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

search space information corresponding to the first set of common PDCCHs.

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

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

an eighth determining unit, configured to determine the first beam information according to synchronization signal/physical broadcast channel signal block SSB beam information that satisfies a preset condition measured by a terminal during initial access;

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

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

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

and the fourth sending module is used for sending the fourth indication information.

In the beam information indicating device of the embodiment of the application, when the first beam information is indicated by the MAC CE signaling, the first time is a time after a first preset time length for transmitting ACK information of the MAC CE signaling;

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

a fifth sending module, configured to send configuration information of the first search space, where the configuration information includes monitoring opportunity information.

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

the first information includes at least one of:

a TCI field;

the order of the TCI status information;

the bit length of the TCI status information;

a DCI size.

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

sending sixth indication information, where the sixth indication information is used to indicate that a first terminal in the terminal group monitors a second group of common PDCCHs;

configuring a first TCI state quantity for the first group of the public PDCCH, wherein the first TCI state quantity is greater than or equal to the quantity of the terminals in the terminal group;

configuring the TCI state of the first set of common PDCCH to correspond to multiple sets of monitoring occasions.

a first configuration module, configured to configure at least two radio network temporary identifiers RNTI information for the first group of common PDCCHs, where different terminal groups use different RNTI information.

The beam information indicating device of the embodiment of the application indicates the beam information of at least two terminals through the first indication information, so that the purpose of indicating the common beam of the at least two terminals through the first indication information can be achieved, and further, when the number of the terminals is large, signaling overhead can be reduced. .

Specifically, the embodiment of the application further provides a network side device. As shown in fig. 8, the network-side device 800 includes: antenna 801, radio frequency device 802, baseband device 803. The antenna 801 is connected to a radio frequency device 802. In the uplink direction, the rf device 802 receives information via the antenna 801 and sends the received information to the baseband device 803 for processing. In the downlink direction, the baseband device 803 processes information to be transmitted and transmits the processed information to the radio frequency device 802, and the radio frequency device 802 processes the received information and transmits the processed information through the antenna 81.

The above band processing means may be located in the baseband means 803, and the method performed by the network side device in the above embodiment may be implemented in the baseband means 803, where the baseband means 803 includes a processor 804 and a memory 805.

The baseband apparatus 803 may include, for example, at least one baseband board, on which a plurality of chips are disposed, as shown in fig. 8, where one of the chips, for example, the processor 804, is connected to the memory 805 to call up the program in the memory 805 to perform the network side device operation shown in the above method embodiment.

The baseband device 803 may further include a network interface 806, such as a Common Public Radio Interface (CPRI), for exchanging information with the radio frequency device 802.

Specifically, the network side device of the embodiment of the present invention further includes: the instructions or programs stored in the memory 805 and capable of being executed on the processor 804, and the processor 804 calls the instructions or programs in the memory 805 to execute the methods executed by the modules shown in fig. 7, and achieve the same technical effects, which are not described herein for avoiding repetition.

An embodiment of the present application further provides a readable storage medium, where a program or an instruction is stored on the readable storage medium, and when the program or the instruction is executed by a processor, the program or the instruction implements each process of the foregoing beam information acquisition method embodiment or beam information indication method embodiment, and can achieve the same technical effect, and in order to avoid repetition, the detailed description is omitted here.

Wherein, the processor is the processor in the terminal described in the above embodiment. The readable storage medium includes a computer readable storage medium, such as a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and so on.

The 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 an instruction, to implement each process in the foregoing beam information acquisition method embodiment or beam information indication method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here.

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

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Further, it should be noted that the scope of the methods and apparatus of the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order based on the functions involved, e.g., the methods described may be performed in an order different than that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present application may be embodied in the form of a software product, which is stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (e.g., a mobile phone, a computer, a server, or a network-side device) to execute the method according to the embodiments of the present application.

While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A method for acquiring beam information is applied to a terminal, and is characterized by comprising the following steps:

2. The method of claim 1, wherein the first indication information is used for indicating beam information of a terminal group, the terminal group comprising the at least two terminals.

3. The method of claim 2, further comprising:

acquiring second indication information, wherein the second indication information is used for indicating grouping information of the terminal group;

4. The method of claim 2, wherein the first indication information comprises at least one of:

the identification of the terminal group and a beam information;

identification of at least one terminal and one beam information;

an identity of a terminal and corresponding beam information;

5. The method of claim 1, wherein the obtaining the first indication information comprises:

and acquiring the first indication information through DCI signaling.

6. The method of claim 5, wherein the DCI signaling is located on a first set of common Physical Downlink Control Channels (PDCCH).

7. The method of claim 6, further comprising:

and acquiring third indication information, wherein the third indication information is used for indicating time-frequency information required for monitoring the first group of public PDCCHs.

8. The method of claim 7, wherein the third indication information comprises at least one of:

search space information corresponding to the first set of common PDCCHs.

9. The method of claim 6, further comprising:

determining first beam information used by the first set of common PDCCHs.

10. The method of claim 9, wherein the determining the first beam information used by the first set of common PDCCHs comprises at least one of:

11. The method of claim 10, further comprising:

and determining the monitoring opportunity information of the first group of public PDCCH according to the TCI state information of the first group of public PDCCH.

12. The method of claim 11, wherein the determining the monitoring occasion information of the first set of common PDCCH according to the TCI status information of the first set of common PDCCH comprises:

13. The method of claim 6, further comprising:

acquiring fifth indication information, wherein the fifth indication information is used for indicating first information corresponding to TCI state information of each terminal on a first group of public PDCCHs;

the first information includes at least one of:

a TCI field;

the order of the TCI status information;

the bit length of the TCI status information;

a DCI size.

14. The method of claim 13, further comprising:

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

15. The method of claim 10,

under the condition that the first beam information is indicated by MAC CE signaling, the first time is the time after the first preset time length of ACK information of the MAC CE signaling is transmitted;

16. The method of claim 10, wherein the default beam information comprises one of:

17. The method of claim 6, wherein in case that 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:

18. The method of claim 10, further comprising:

acquiring at least two Radio Network Temporary Identifiers (RNTI) information of the first group of public PDCCH, wherein different terminal groups use different RNTI information.

19. A method for indicating beam information is applied to a network side device, and is characterized by comprising the following steps:

20. The method of claim 19, wherein the first indication information is used for indicating beam information of a terminal group, the terminal group comprising the at least two terminals.

21. The method of claim 20, further comprising:

sending second indication information, wherein the second indication information is used for indicating grouping information of the terminal group;

22. The method of claim 21, further comprising:

acquiring beam information in a beam report of the terminal;

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

23. The method of claim 20, wherein the first indication information comprises at least one of:

a terminal group identifier and a beam information;

identification of at least one terminal and one beam information;

an identity of a terminal and corresponding beam information;

24. The method of claim 19, wherein the sending the first indication information comprises:

and transmitting the first indication information through DCI signaling.

25. The method of claim 24, wherein the DCI signaling is on a first set of common Physical Downlink Control Channels (PDCCHs).

26. The method of claim 25, further comprising:

and sending third indication information, wherein the third indication information is used for indicating time-frequency information required for monitoring the first group of public PDCCHs.

27. The method of claim 26, wherein the third indication information comprises at least one of:

search space information corresponding to the first set of common PDCCHs.

28. The method of claim 25, further comprising:

first beam information used by a first set of common PDCCHs is determined.

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

30. The method of claim 29, further comprising:

and sending the fourth indication information.

31. The method of claim 29,

32. The method of claim 29, wherein the default beam information comprises one of:

33. The method of claim 30, further comprising:

34. The method of claim 25, further comprising:

the first information includes at least one of:

a TCI field;

the order of the TCI status information;

the bit length of the TCI status information;

a DCI size.

35. The method of claim 25, wherein in case that the number of terminals in a 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;

36. The method of claim 25, further comprising:

configuring at least two pieces of Radio Network Temporary Identifier (RNTI) information for the first group of the public PDCCH, wherein different terminal groups use different RNTI information.

37. A beam information acquisition device applied to a terminal is characterized by comprising:

38. A terminal comprising a processor, a memory, and a program or instructions stored on the memory and executable on the processor, the program or instructions when executed by the processor implementing the steps of the beam information acquisition method according to any one of claims 1 to 18.

39. A beam information indicating device is applied to a network side device, and is characterized by comprising:

40. A network side device, comprising a processor, a memory, and a program or instructions stored on the memory and executable on the processor, wherein the program or instructions, when executed by the processor, implement the steps of the beam information indication method according to any one of claims 19 to 36.

41. A readable storage medium, characterized in that a program or instructions are stored thereon, which when executed by a processor, implement the steps of 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.