A beam indication method, terminal and base station

Abstract

This application provides a beam indication method, a terminal, and a base station, relating to the field of communication technology. The beam indication method, applied to a terminal, includes: receiving a target beam for reception indicated by a first bit of a first signaling signal from a base station, and beam measurement indication information of the target beam indicated by a second bit of the first signaling signal; or, when receiving a target beam for reception indicated by the first signaling signal from the base station, receiving beam measurement indication information of the target beam indicated by a second signaling signal from the base station; measuring the target beam according to the beam measurement indication information, and then reporting the measurement result information. This scheme can reduce the latency of the beam measurement reporting process.

Description

Technical Field

[0001] This application relates to the field of communication technology, and in particular to a beam pointing method, a terminal, and a base station. Background Technology

[0002] In the prior art, for non-periodic beam measurement reporting, if beam updates are required after beam indication, the base station needs to trigger a beam measurement report through an independent UL DCI. The terminal needs to wait for and receive the bearer UL DCI and demodulate and decode it. After that, the terminal performs measurements on the specified measurement resources according to the base station's instructions and reports the measurement results on the uplink resources indicated by the base station.

[0003] In existing technologies, when beam updates occur, the triggering of aperiodic measurement reporting is to use an independent DCI to trigger the measurement reporting of the new beam. The base station sends a downlink physical control channel (PDCCH) carrying the DCI, and the terminal demodulates and decodes the PDCCH and waits to receive and decode the DCI, which increases the latency of the entire measurement reporting process. Summary of the Invention

[0004] The purpose of this application is to provide a beam indication method, terminal, and base station to solve the problem of large time delay in the beam measurement reporting process of non-periodic measurement during beam updates in the prior art.

[0005] To address the aforementioned technical problems, embodiments of this application provide a beam pointing method applied to a terminal, comprising:

[0006] The receiving base station indicates the target beam for reception via a first bit of the first signaling, and the beam measurement indication information of the target beam is indicated by a second bit of the first signaling; or

[0007] When the receiving base station indicates the target beam for reception via the first signaling, the receiving base station receives the beam measurement indication information of the target beam indicated by the second signaling.

[0008] After measuring the target beam according to the beam measurement instruction information, the measurement result information is reported.

[0009] Optionally, the first signaling is associated with the second signaling.

[0010] Optionally, the first signaling is associated with the second signaling as follows:

[0011] The first signaling includes an indication field for triggering beam measurement, through which the first signaling is associated with the second signaling;

[0012] or,

[0013] The first signaling and the second signaling are associated in terms of time resources.

[0014] Optionally, the above beam indication method further includes:

[0015] The terminal determines the target reference signal resources used for beam measurement of the target beam through at least one of the following methods:

[0016] The channel state information reference signal (CSI-RS) resource set of a beam measurement configured at a higher level is determined as the target reference signal resource;

[0017] The target reference signal resource is determined according to predefined rules.

[0018] Optionally, determining the target reference signal resource according to predefined rules includes:

[0019] The Channel State Information Reference Signal (CSI-RS) resource set associated with the first reference signal via a quasi-co-located QCL is determined as the target reference signal resource; wherein, the first reference signal is a quasi-co-located QCL type D source reference signal in the Transmission Control Indication (TCI) state used by the first signaling;

[0020] or,

[0021] The reference signal resource associated with the time-domain location and the first resource is determined as the target reference signal resource; wherein, the first resource is the time-domain resource where the downlink physical control channel (PDCCH) carrying the first signaling is located.

[0022] Optionally, the first signaling may also include a third bit, which is used to indicate whether the beam directions of the associated reference signals are the same.

[0023] Optionally, the above beam indication method further includes:

[0024] The terminal determines the resources for reporting beam measurement results through at least one of the following methods:

[0025] The most recently scheduled Physical Uplink Shared Channel (PUSCH) after the time slot where the Physical Downlink Control Channel (PDCCH) carrying the first signaling is located is determined as the resource for the terminal to report beam measurement results.

[0026] The most recently available PUSCH is identified as the resource for the terminal to report beam measurement results;

[0027] The configured authorization-based PUSCH is determined as the resource for the terminal to report beam measurement results.

[0028] This invention also provides a beam indication method applied to a base station, comprising:

[0029] Send to the terminal a target beam for reception indicated by a first bit of the first signaling, and beam measurement indication information of the target beam indicated by a second bit of the first signaling; or,

[0030] When instructing the terminal to receive a target beam via the first signaling, beam measurement indication information of the target beam, indicated by the second signaling, is sent to the terminal.

[0031] Optionally, the first signaling is associated with the second signaling.

[0032] Optionally, the first signaling is associated with the second signaling as follows:

[0033] The first signaling includes an indication field for triggering beam measurement, through which the first signaling is associated with the second signaling;

[0034] or,

[0035] The first signaling and the second signaling are associated in terms of time resources.

[0036] Optionally, the above beam indication method further includes: indicating the target reference signal resources used by the terminal for beam measurement by at least one of the following methods:

[0037] The Channel State Information Reference Signal (CSI-RS) resource set measured by a beam configured at a higher level is indicated as the target reference signal resource;

[0038] The target reference signal resource is indicated according to predefined rules.

[0039] Optionally, indicating the target reference signal resource according to predefined rules includes:

[0040] Configure a CSI-RS resource set associated with the first reference signal via a quasi-co-located QCL; indicate the CSI-RS resource set as the target reference signal resource; wherein the first reference signal is a quasi-co-located QCL type D source reference signal in the Transmission Control Indication (TCI) state of the first signaling;

[0041] or,

[0042] The reference signal resource associated with the time-domain location and the first resource is indicated as the target reference signal resource; wherein, the first resource is the time-domain resource where the downlink physical control channel (PDCCH) carrying the first signaling is located.

[0043] Optionally, the first signaling may also include a third bit, which is used to indicate whether the beam directions of the associated reference signals are the same.

[0044] Optionally, the above beam indication method further includes:

[0045] The terminal is instructed to report beam measurement results using at least one of the following methods:

[0046] The most recently scheduled Physical Uplink Shared Channel (PUSCH) after the time slot where the Physical Downlink Control Channel (PDCCH) carrying the first signaling is located is designated as the resource for the terminal to report beam measurement results; the most recently available PUSCH is designated as the resource for the terminal to report beam measurement results.

[0047] The configured license-based PUSCH is specifically designated as the resource for reporting beam measurement results by the terminal.

[0048] This invention also provides a terminal, including: a transceiver, a memory, a processor, and a program stored in the memory and executable on the processor; the processor is configured to read the program from the memory and execute the following processes:

[0049] The transceiver receives the target beam for reception indicated by the first bit of the first signaling from the base station, and the beam measurement indication information of the target beam indicated by the second bit of the first signaling; or when receiving the target beam for reception indicated by the first signaling from the base station, the transceiver receives the beam measurement indication information of the target beam indicated by the second signaling from the base station.

[0050] After measuring the target beam according to the beam measurement instruction information, the measurement result information is reported.

[0051] Optionally, the first signaling is associated with the second signaling.

[0052] Optionally, the first signaling is associated with the second signaling as follows:

[0053] The first signaling includes an indication field for triggering beam measurement, through which the first signaling is associated with the second signaling;

[0054] or,

[0055] The first signaling and the second signaling are associated in terms of time resources.

[0056] Optionally, the processor is further configured to read the computer program in the memory and perform the following operations:

[0057] The target reference signal resource used for beam measurement of the target beam is determined by at least one of the following methods:

[0058] The channel state information reference signal (CSI-RS) resource set of a beam measurement configured at a higher level is determined as the target reference signal resource;

[0059] The target reference signal resource is determined according to predefined rules.

[0060] Optionally, when determining the target reference signal resource according to predefined rules, the processor is further configured to perform the following operations:

[0061] The Channel State Information Reference Signal (CSI-RS) resource set associated with the first reference signal via a quasi-co-located QCL is determined as the target reference signal resource; wherein, the first reference signal is a quasi-co-located QCL type D source reference signal in the Transmission Control Indication (TCI) state used by the first signaling;

[0062] or,

[0063] The reference signal resource associated with the time-domain location and the first resource is determined as the target reference signal resource; wherein, the first resource is the time-domain resource where the downlink physical control channel (PDCCH) carrying the first signaling is located.

[0064] Optionally, the first signaling may also include a third bit, which is used to indicate whether the beam directions of the associated reference signals are the same.

[0065] Optionally, the processor is further configured to read the computer program in the memory and perform the following operations:

[0066] The resource for reporting beam measurement results is determined by at least one of the following methods:

[0067] The most recently scheduled Physical Uplink Shared Channel (PUSCH) after the time slot where the Physical Downlink Control Channel (PDCCH) carrying the first signaling is located is determined as the resource for the terminal to report beam measurement results.

[0068] The most recently available PUSCH is identified as the resource for the terminal to report beam measurement results;

[0069] The configured authorization-based PUSCH is determined as the resource for the terminal to report beam measurement results.

[0070] This invention also provides a base station, comprising: a transceiver, a memory, a processor, and a program stored in the memory and executable on the processor; the processor is configured to read the program from the memory and execute the following processes:

[0071] The transceiver sends to the terminal a target beam for reception indicated by a first bit of a first signaling signal, and beam measurement indication information of the target beam indicated by a second bit of the first signaling signal; or, when indicating the target beam for reception to the terminal via the first signaling signal, the transceiver sends to the terminal the beam measurement indication information of the target beam indicated by a second signaling signal.

[0072] Optionally, the first signaling is associated with the second signaling.

[0073] Optionally, the first signaling is associated with the second signaling in the following ways: the first signaling includes an indication field for triggering beam measurement, through which the first signaling is associated with the second signaling; or, the first signaling is associated with the second signaling in terms of time resources.

[0074] Optionally, the processor is further configured to read the computer program in the memory and perform the following operations:

[0075] The target reference signal resources used by the terminal for beam measurement are indicated by at least one of the following methods:

[0076] The Channel State Information Reference Signal (CSI-RS) resource set measured by a beam configured at a higher level is indicated as the target reference signal resource;

[0077] The target reference signal resource is indicated according to predefined rules.

[0078] Optionally, when the processor instructs the target reference signal resource according to predefined rules, it is also specifically used for the following operations:

[0079] Configure a CSI-RS resource set associated with the first reference signal via a quasi-co-located QCL; indicate the CSI-RS resource set as the target reference signal resource; wherein the first reference signal is a quasi-co-located QCL type D source reference signal in the Transmission Control Indication (TCI) state of the first signaling;

[0080] or,

[0081] The reference signal resource associated with the time-domain location and the first resource is indicated as the target reference signal resource; wherein, the first resource is the time-domain resource where the downlink physical control channel (PDCCH) carrying the first signaling is located.

[0082] Optionally, the first signaling may also include a third bit, which is used to indicate whether the beam directions of the associated reference signals are the same.

[0083] Optionally, the processor is further configured to read the computer program in the memory and perform the following operations:

[0084] The terminal is instructed to report beam measurement results using at least one of the following methods:

[0085] The most recently scheduled Physical Uplink Shared Channel (PUSCH) after the time slot where the Physical Downlink Control Channel (PDCCH) carrying the first signaling is located is designated as the resource for the terminal to report beam measurement results; the most recently available PUSCH is designated as the resource for the terminal to report beam measurement results.

[0086] The configured license-based PUSCH is specifically designated as the resource for reporting beam measurement results by the terminal.

[0087] This invention also provides a terminal, comprising:

[0088] The receiving module is configured to receive a target beam for reception indicated by a first bit of a first signaling signal from a base station, and beam measurement indication information of the target beam indicated by a second bit of the first signaling signal; or, when receiving a target beam for reception indicated by the first signaling signal from a base station, to receive beam measurement indication information of the target beam indicated by the second signaling signal from the base station.

[0089] The result reporting module is used to measure the target beam according to the beam measurement instruction information and then report the measurement result information.

[0090] This invention also provides a base station, comprising:

[0091] The transmitting module is configured to transmit to the terminal a target beam for reception indicated by a first bit of a first signaling signal, and beam measurement indication information of the target beam indicated by a second bit of the first signaling signal; or, when indicating the target beam for reception to the terminal via the first signaling signal, to the terminal the beam measurement indication information of the target beam indicated by a second signaling signal.

[0092] The beneficial effects of the above technical solution in this application are as follows:

[0093] In the above scheme, as one approach, the base station indicates the target beam for reception to the terminal via the first bit of the first signaling, and indicates beam measurement indication information of the target beam to the terminal via the second bit of the first signaling; or as another approach, when the base station indicates the target beam for reception via the first signaling, the base station indicates the beam measurement indication information of the target beam to the terminal via the second signaling; further, the terminal measures the target beam according to the beam measurement indication information and then reports the measurement result information. In this scheme, since the signaling used to trigger beam measurement is not sent to the terminal only after the new beam is generated, the processing time for beam measurement and reporting can be shortened, and the latency of the beam measurement reporting process can be reduced. Attached Figure Description

[0094] Figure 1 This is a schematic diagram of the existing technology for reporting based on non-periodic measurements;

[0095] Figure 2 This is one of the flowcharts illustrating the beam pointing method of this application;

[0096] Figure 3 This is the second flowchart illustrating the beam pointing method of this application;

[0097] Figure 4 This is a schematic diagram of the CSI-RS resource set associated with SSB resources in this application;

[0098] Figure 5 This is the third flowchart illustrating the beam pointing method of this application;

[0099] Figure 6 A schematic diagram of the modules of a terminal according to an embodiment of the present invention;

[0100] Figure 7 A structural diagram of the terminal according to an embodiment of the present invention;

[0101] Figure 8 A schematic diagram of a base station module representing an embodiment of the present invention;

[0102] Figure 9 A structural diagram of a base station according to an embodiment of the present invention. Detailed Implementation

[0103] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0104] In the embodiments of this application, the term "and / or" describes the relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent three cases: A alone, A and B simultaneously, and B alone. The character " / " generally indicates that the preceding and following associated objects have an "or" relationship.

[0105] In the embodiments of this application, the term "multiple" refers to two or more, and other quantifiers are similar.

[0106] To clarify, (two)

[0108] The technical solutions provided in this application can be applied to various systems, especially 5G systems. For example, applicable systems include Global System for Mobile Communication (GSM), Code Division Multiple Access (CDMA), Wideband Code Division Multiple Access (WCDMA) General Packet Radio Service (GPRS), Long Term Evolution (LTE), LTE Frequency Division Duplex (FDD), LTE Time Division Duplex (TDD), Long Term Evolution Advanced (LTE-A), Universal Mobile Telecommunication System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX), and 5G New Radio (NR). All of these systems include terminal equipment and network equipment. The systems may also include a core network component, such as Evolved Packet System (EPS) and 5G system (5GS).

[0109] Figure 1 This diagram illustrates a block diagram of a wireless communication system to which embodiments of this application may be applied. The wireless communication system includes terminal equipment and network equipment. (three)

[0111] The terminal devices involved in the embodiments of this application can be devices that provide voice and / or data connectivity to users, handheld devices with wireless connectivity, or other processing devices connected to a wireless modem. The names of the terminal devices may differ in different systems; for example, in a 5G system, a terminal device can be called User Equipment (UE). Wireless terminal devices can communicate with one or more core networks (CNs) via a Radio Access Network (RAN). Wireless terminal devices can be mobile terminal devices, such as mobile phones (or "cellular" phones) and computers with mobile terminal devices, for example, portable, pocket-sized, handheld, computer-embedded, or vehicle-mounted mobile devices that exchange voice and / or data with the RAN. Examples include Personal Communication Service (PCS) phones, cordless phones, Session Initiated Protocol (SIP) phones, Wireless Local Loop (WLL) stations, and Personal Digital Assistants (PDAs). Wireless terminal equipment can also be referred to as a system, subscriber unit, subscriber station, mobile station, mobile station, remote station, access point, remote terminal, access terminal, user terminal, user agent, or user device, but is not limited to these terms in the embodiments of this application. (Four)

[0113] The network device involved in this application embodiment can be a base station, which may include multiple cells providing services to terminals. Depending on the specific application, a base station may also be called an access point, or a device in an access network that communicates with a wireless terminal device through one or more sectors on the air interface, or other names. The network device can be used to exchange received air frames with Internet Protocol (IP) packets, acting as a router between the wireless terminal device and the rest of the access network, where the rest of the access network may include an Internet Protocol (IP) communication network. The network device can also coordinate the attribute management of the air interface. For example, the network equipment involved in the embodiments of this application can be a base transceiver station (BTS) in a Global System for Mobile communications (GSM) or Code Division Multiple Access (CDMA), a NodeB in a Wide-band Code Division Multiple Access (WCDMA) system, an evolved Node B (eNB or e-NodeB) in a long term evolution (LTE) system, a 5G base station (gNB) in a next generation system, a Home evolved Node B (HeNB), a relay node, a femto, a pico, etc., and is not limited in the embodiments of this application. In some network structures, the network equipment may include centralized unit (CU) nodes and distributed unit (DU) nodes, and the centralized unit and distributed unit may be geographically separated. (five)

[0115] Network devices and terminal devices can each use one or more antennas for multiple-input multiple-output (MIMO) transmission. MIMO transmission can be single-user MIMO (SU-MIMO) or multiple-user MIMO (MU-MIMO). Depending on the configuration and number of antenna combinations, MIMO transmission can be 2D-MIMO, 3D-MIMO, FD-MIMO, or massive-MIMO, and can also be diversity transmission, precoding transmission, or beamforming transmission, etc.

[0116] The following section will first introduce the content related to the solutions provided in the embodiments of this application.

[0117] like Figure 1 As shown, this illustrates a prior art process based on non-periodic measurement reporting, which mainly includes the following steps:

[0118] Step 11: The base station selects a beam and performs beam indication / update (via MAC-CE or DCI1) based on the measurement information previously reported by the terminal.

[0119] Step 12: The terminal provides HARQ / ACK feedback on the beam indication;

[0120] Step 13: New beam takes effect;

[0121] Step 14: The base station sends DCI2, triggering the terminal to perform beam measurement on the specified CSI-RS resource and report the measurement results on the indicated PUSCH resource;

[0122] Step 15: The terminal, following the instructions of the base station, uses the receiving beam of the beam indicated by the base station in Step 11 to perform reception measurement on the CSI-RS resource indicated by the base station in Step 14, and reports the measurement results on the corresponding PUSCH resource according to the instructions in DCI2.

[0123] Based on the above, embodiments of this application provide a beam indication method, a terminal, and a base station to solve the problem of large delay in the beam measurement reporting process of non-periodic measurements during beam updates in the prior art.

[0124] like Figure 2 As shown in the embodiment of this application, a beam indication method is provided and applied to a terminal, including:

[0125] Step S101: Receive the target beam for reception indicated by the first bit of the first signaling from the base station, and the beam measurement indication information of the target beam indicated by the second bit of the first signaling; or when receiving the target beam for reception indicated by the first signaling from the base station, receive the beam measurement indication information of the target beam indicated by the second signaling from the base station.

[0126] In this step, specifically, the first signaling is DCI signaling, or Media Access Control Unit (MAC-CE); the second signaling is DCI signaling; and the beam measurement indication information is used by the terminal to trigger beam measurement and reporting of the target beam.

[0127] For example, the base station sends out DCI1 for beam indication. DCI1 includes Transmission Configuration Indicator state (TCI state) 1. The first bit in the first signaling instruction indicates TCI state 1 in DCI1. The QCL type D RS in TCI state 1 is Synchronization Signal and PBCH block (SSB) 1, instructing the terminal to use the beam that receives SSB1 to receive / transmit subsequent downlink / uplink signals. Simultaneously, the base station instructs the terminal to perform subsequent aperiodic measurement reporting through the second bit (e.g., 1 bit) in DCI1.

[0128] For example, the base station sends a beam indication DCI1 and simultaneously sends an independent uplink DCI2 to transmit beam measurement indication information. The beam measurement indication information is used by the terminal to trigger beam measurement and reporting of the target beam.

[0129] Step S201: After measuring the target beam according to the beam measurement instruction information, report the measurement result information.

[0130] In this step, when the terminal receives the target beam indicated by the base station for reception, it triggers beam measurement of the target beam based on the received beam measurement indication information. The reference signal resources used for beam measurement can be determined according to the beam indication in a predefined manner, or obtained through higher-layer configuration. The resources used for reporting the beam measurement results can be determined in a predefined manner.

[0131] In this embodiment, as one approach, the base station indicates the target beam for reception to the terminal via the first bit of the first signaling, and indicates beam measurement indication information of the target beam to the terminal via the second bit of the first signaling; or as another approach, when the base station indicates the target beam for reception to the terminal via the first signaling, the base station indicates the beam measurement indication information of the target beam to the terminal via the second signaling; further, the terminal measures the target beam according to the beam measurement indication information and then reports the measurement result information. In this embodiment, since the signaling used to trigger beam measurement is not sent to the terminal only after the new beam is generated, the processing time for beam measurement and reporting can be shortened, reducing the latency of the beam measurement reporting process.

[0132] Specifically, the second bit is one or more bits in the first signaling.

[0133] For example, one or more bits in the first signaling can be carried using an existing indication field. For instance, "0001" indicates that the terminal performs beam measurement on TCI state 0. "0000" indicates that the terminal does not perform beam measurement on TCI state 0. Alternatively, one or more bits in the first signaling can also be carried using an independently defined indication field. For example, bit "0" indicates that beam measurement is performed on the indicated TCI state, and bit "1" indicates that beam measurement is not performed on the indicated TCI state.

[0134] In one embodiment, the first signaling is associated with the second signaling.

[0135] In this embodiment, the terminal can quickly decode the second signaling through the first signaling and the association between the first signaling and the second signaling, thereby reducing processing latency.

[0136] Specifically, the first signaling is associated with the second signaling, and is one of the following:

[0137] The first type: The first signaling includes an indication field for triggering beam measurement, through which the first signaling is associated with the second signaling;

[0138] For example, when the first signaling and the second signaling are DCI signaling, the association between the first signaling and the second signaling may include: the DCI signaling for beam indication (the first signaling) includes a DCI field for triggering beam measurement signaling (the second signaling).

[0139] The second type: The first signaling and the second signaling are associated in terms of time resources.

[0140] For example, the DCI signaling used to trigger beam measurement (second signaling) is the first DCI signaling used to trigger beam indication (first signaling) to trigger channel state information (CSI) reporting within the same time window (several time slots).

[0141] Furthermore, in one embodiment, the first signaling also includes a third bit, which is used to indicate whether the beam directions of the associated reference signals are the same.

[0142] In this embodiment, the associated reference signals are the first reference signal and the CSI-RS. The first reference signal and the CSI-RS are associated through a quasi-co-addressable QCL. When the beam directions of the associated reference signals are the same as those indicated in the first signaling, it can be used to optimize the receiving beam. When the beam directions of the associated reference signals are not the same, it can be used to optimize the transmitting beam.

[0143] In one embodiment, the method further includes: the terminal determining the resource for reporting beam measurement results by at least one of the following methods:

[0144] Method A1: The most recently scheduled Physical Uplink Shared Channel (PUSCH) after the time slot where the Physical Downlink Control Channel (PDCCH) carrying the first signaling is located is determined as the resource for the terminal to report beam measurement results; Method A2: The most recently available PUSCH is determined as the resource for the terminal to report beam measurement results.

[0145] Method C: The configured grant-based PUSCH is determined as the resource for the terminal to report beam measurement results.

[0146] In one embodiment, after step S101, the method further includes: the terminal determining the target reference signal resource used for beam measurement of the target beam by at least one of the following methods:

[0147] Method 1:

[0148] The channel state information reference signal (CSI-RS) resource set of a beam measurement configured at a higher level is determined as the target reference signal resource;

[0149] In this approach, a fixed set of CSI-RS resources specifically used for beam measurement is configured via RRC as the target reference signal resource for beam measurement.

[0150] For example, the target reference signal resource is a fixed non-zero power channel state information reference signal resource set (NZP CSI-RS resource set) configured through Radio Resource Control (RRC): {CSI-RS1, CSI-RS2, CSI-RS3, CSI-RS4}, which serves as a channel state information reference signal CSI-RS resource set specifically for beam measurement.

[0151] Method 2:

[0152] The target reference signal resource is determined according to predefined rules.

[0153] Specifically, method two includes one of the following:

[0154] The first type:

[0155] The reference signal resource associated with the time-domain location and the first resource is determined as the target reference signal resource; wherein, the first resource is the time-domain resource where the downlink physical control channel (PDCCH) carrying the first signaling is located.

[0156] For example, the first non-zero power channel state information reference signal resource set (NZP-CSI-RS-Resource Set) in the M time slots following the time slot of the PDCCH carrying DCI1 (first signaling) is used as the reference signal resource for beam measurement. The terminal uses the receive beam of the QCL type-D source RS contained in the TCI state to receive and measure the reference signal used for beam measurement.

[0157] The second type:

[0158] The channel state information reference signal (CSI-RS) resource set associated with the first reference signal via a quasi-co-located QCL is determined as the target reference signal resource; wherein, the first reference signal is a quasi-co-located QCL type D source reference signal (QCL type D source RS) in the Transmission Control Indication (TCI) state used by the first signaling.

[0159] For example, the associated CSI-RS resource set can be configured within the QCL type-Dsource RS in the beam indication signaling (first signaling) through higher-layer signaling configuration. For instance, the target reference signal resource can be a resource in CSI-RS resource set 1 associated with SSB1, configured by the base station via RRC before the base station sends the first signaling, where SSB1 is the target beam indicated in the first signaling.

[0160] The beam indication and beam measurement reporting process of this application will be described below through three specific embodiments.

[0161] Example 1: The target reference signal resource is determined in one of the following ways: Method 1 (a fixed set of Channel State Information Reference Signals (CSI-RS) resources specifically configured by higher layers for beam measurement is determined as the target reference signal resource); and the base station simultaneously sends beam measurement indication information through the same signaling indicating the beam. This can specifically include the following steps:

[0162] Step 1: The base station sends out DCI1 for beam indication. The first bit of DCI1 contains Transmission Configuration Indicator (TCI) state1. The QCLtype DR in TCI state1 is SSB1, instructing the terminal to use the beam that receives SSB1 to receive / transmit subsequent downlink / uplink signals. Simultaneously, the base station uses the second bit (e.g., 1 bit) in DCI1 to instruct the terminal to perform subsequent aperiodic measurement reporting.

[0163] The non-periodic measurement resources are a fixed set of NZP CSI-RS resources configured through RRC: {CSI-RS1, CSI-RS2, CSI-RS3, CSI-RS4}.

[0164] Specifically, the configuration fields are as follows:

[0165]

[0166] Step two: The terminal receives an instruction from the base station and confirms that there will be non-periodic measurement reports later.

[0167] Step 3: The terminal determines the measurement resources of the non-periodic CSI-RS as: {CSI-RS1, CSI-RS2, CSI-RS3, CSI-RS4};

[0168] Step 4: The terminal uses the beam that receives SSB1 to receive {CSI-RS1, CSI-RS2, CSI-RS3, CSI-RS4} and measures them to obtain L1-RSRP1, L1-RSRP2, L1-RSRP3, and L1-RSRP4.

[0169] Step 5: The terminal reports beam CRI3+L1-RSRP3 on the most recently scheduled PUSCH after the time slot of the PDCCH carrying beam indication DCI1, according to the predefined resource indication.

[0170] Step six: After receiving the terminal's report, the base station transmits the PDCCH / PDSCH using the beam that transmits CSI-RS3 in subsequent downlink transmissions.

[0171] Example 2:

[0172] like Figure 3 As shown, taking a beam measurement reporting process based on a hierarchical architecture as an example, the second method in the above-mentioned method 2 (determining the channel state information reference signal (CSI-RS) resource set associated with the first reference signal through a quasi-co-located QCL as the target reference signal resource) is introduced as an example.

[0173] First, the base station configures the SSB resource set {SSB1, SSB2, SSB3, SSB4, SSB5, SSB6, SSB7, SSB8} via RRC, and simultaneously configures the CSI-RS resource set associated with this SSB resource set. For example... Figure 4 The diagram illustrates the association between SSB3 and the CSI-RS resource set {CSI-RS4, CSI-RS5, CSI-RS6}. The associated reference signals are connected via a quasi-co-addressable QCL. For example, the QCL-type DRS of each CSI-RS resource in the CSI-RS resource set is the same SSB signal. For instance, the QCL-type DRS of all eight CSI-RS resources {CSI-RS1, CSI-RS2, CSI-RS3, CSI-RS4, CSI-RS5, CSI-RS6, CSI-RS7, CSI-RS8} in CSI-RS resource set 1 is SSB 1.

[0174] Specifically, beam measurement reporting may include the following steps:

[0175] Step 31: The base station triggers beam measurement.

[0176] Specifically, the base station configures a non-periodic trigger state (CSIAperiodicTriggerState) for channel state information, and an SSB measurement set {SSB1, SSB2, SSB3, SSB4}. In the nth time slot, the base station sends DCI1, triggering the terminal to measure and report the SSB resource set.

[0177] Step 32: The terminal reports beam measurements as instructed by the base station.

[0178] Specifically, the terminal measures the Layer 1 Reference Signal Received Power (L1-RSRP) of the SSB measurement set {SSB1, SSB2, SSB3, SSB4} and sorts the measured L1-RSRP values ​​to obtain L1-RSRP1>L1-RSRP3>L1-RSRP2>L1-RSRP4. The terminal reports the beams SSB1 and SSB3 with the largest and second largest L1-RSRPs, along with their corresponding L1-RSRP1 and L1-RSRP3 values.

[0179] Step 33: The base station selects a beam and performs beam indication based on the measurement results reported by the terminal, and the base station triggers fine beam measurement.

[0180] Upon receiving the report from the terminal, the base station determines that the new beam is the transmit beam of SSB1 and uses SSB1 to update the QCL type D source RS contained in the TCI-state of the beam indication DCI2; the QCL type D source RS contained in the TCI-state of DCI2 is indicated by the first bit. At the same time, the base station instructs the terminal to perform subsequent aperiodic measurement reporting through 1 bit (the second bit) in DCI2.

[0181] The aperiodic measurement resources (target reference signal resources) are the resources in CSI-RS resource set 1 associated with SSB1, which were previously configured by the base station via RRC. The aperiodic measurement reporting resources (resources for reporting beam measurement results) are determined in a predefined manner; for example, they are transmitted on the most recently scheduled PUSCH after the time slot of the PDCCH carrying beam indication DCI1, or on a recently available PUSCH resource, or on a configured grant-based PUSCH resource.

[0182] Step 34: The terminal receives the beam indication DCI2 from the base station and sends an ACK feedback on the beam indication.

[0183] Step 35: New beam activated.

[0184] Step 36: The terminal reports the beam measurement results according to the instructions of the base station.

[0185] Following the instructions of the base station, the terminal uses the beam that receives SSB1 to receive CSI-RS resource set 1, and measures CSI-RS1, CSI-RS2, CSI-RS3, CSI-RS4, CSI-RS5, CSI-RS6, CSI-RS7, and CSI-RS8 contained in the resource set to obtain the corresponding L1-RSRPs sorted from largest to smallest: L1-RSRP2, L1-RSRP3, L1-RSRP5, L1-RSRP1, L1-RSRP4, L1-RSRP7, L1-RSRP8, and L1-RSRP6.

[0186] The terminal reports the beam CRI2+L1-RSRP2 on the most recently scheduled PUSCH after the time slot of the PDCCH carrying the beam indicator DCI, according to predefined resource indications. Upon receiving the terminal's report, the base station transmits the PDCCH / PDSCH using the beam that transmitted CSI-RS in subsequent downlink transmissions.

[0187] Example 3: Taking the case where the base station sends beam measurement indication information through different signaling when sending beam indication signaling as an example. Specifically, it may include the following steps:

[0188] Step 1: Configure the base station with the following resources:

[0189] CSI-RS Resource Set 1: {CSI-RS1, CSI-RS2, CSI-RS3, CSI-RS4};

[0190] CSI-RS Resource Set 2: {CSI-RS5, CSI-RS6, CSI-RS7, CSI-RS8};

[0191] CSI-RS Resource Set 3: {CSI-RS9, CSI-RS10, CSI-RS11, CSI-RS12}.

[0192] The Channel State Information (CSI) Aperiodic Trigger State and the CSI-RS measurement resources are CSI-RS Resource Set 1.

[0193] Step 2, in the nth time slot, the base station sends DCI1 to trigger the terminal to report measurements to CSI-RS resource set 1.

[0194] Step 2: The terminal measures the L1-RSRP of CSI-RS1, CSI-RS2, CSI-RS3, and CSI-RS4 according to the instructions of the base station, and sorts the obtained L1-RSRP measurement values ​​to get L1-RSRP1>L1-RSRP2>L1-RSRP4>L1-RSRP3.

[0195] Step 3: The terminal reports the beams CSI-RS1 and CSI-RS2 of the largest and second largest L1-RSRP, as well as the corresponding L1-RSRP1 and L1-RSRP2.

[0196] Step 4: The base station receives the terminal's report, determines that the new beam is the transmission beam of CSI-RS1, and uses CSI-RS1 to update the qcl-type D source RS contained in the TCI-state of the beam indication DCI2; the base station sends out the beam indication DCI2, and at the same time, the base station sends out an independent uplink DCI3 to trigger aperiodic measurement reporting; wherein, the uplink DCI3 used to trigger aperiodic measurement reporting is the first DCI to trigger CSI reporting within the same time window (e.g., M = 2 time slots) as the beam indication DCI2.

[0197] Step 5: The terminal decodes the DCI2 indicated by the beam, and then uses the beam indicated by DCI2 to receive and decode the first DCI3 that triggers CSI reporting within the same time window (M=2 time slots).

[0198] Step 6: The terminal performs HARQ / ACK feedback on the beam indication of DCI2, and performs measurements on the CSI-RS resources {CSI-RS9, CSI-RS10, CSI-RS11, CSI-RS12} that have the same QCL-type D RS as CSI-RS1 to obtain the corresponding L1-RSRPs sorted from largest to smallest: L1-RSRP10, L1-RSRP12, L1-RSRP11, L1-RSRP9.

[0199] The terminal reports the measurement results on the PUSCH resource indicated in DCI3.

[0200] Step 7: After receiving the terminal's report, the base station will use the beam that transmits CSI-RS10 to transmit PDCCH / PDSCH in subsequent downlink transmissions.

[0201] like Figure 5 As shown, this application provides a beam indication method applied to a base station, including:

[0202] Step S201: Send to the terminal the target beam for reception indicated by the first bit of the first signaling, and beam measurement indication information of the target beam indicated by the second bit of the first signaling; or, when indicating the target beam for reception to the terminal through the first signaling, send to the terminal the beam measurement indication information of the target beam indicated by the second signaling.

[0203] In this step, specifically, the first signaling is DCI signaling, or Media Access Control Unit (MAC-CE); the second signaling is DCI signaling; and the beam measurement indication information is used by the terminal to trigger beam measurement and reporting of the target beam.

[0204] For example, the base station sends out DCI1 for beam indication. The first bit of DCI1 contains Transmission Configuration Indicator state (TCI state) 1. The QCL type D RS in TCI state 1 is SSB1, instructing the terminal to use the beam that receives SSB1 to receive / transmit subsequent downlink / uplink signals. At the same time, the base station instructs the terminal to perform subsequent aperiodic measurement reporting through the second bit (e.g., 1 bit) in DCI1.

[0205] For example, the base station sends a beam indication DCI1 and simultaneously sends an independent uplink DCI2 to transmit beam measurement indication information. The beam measurement indication information is used by the terminal to trigger beam measurement and reporting of the target beam.

[0206] In this embodiment, as one approach, the base station indicates the target beam for reception to the terminal via the first bit of the first signaling, and indicates beam measurement indication information of the target beam to the terminal via the second bit of the first signaling; or as another approach, when the base station indicates the target beam for reception to the terminal via the first signaling, the base station indicates the beam measurement indication information of the target beam to the terminal via the second signaling, so that the terminal measures the target beam according to the beam measurement indication information and then reports the measurement result information. In this embodiment, the signaling used to trigger beam measurement is not sent to the terminal only after the new beam is generated, thus shortening the processing time for beam measurement and reporting, and reducing the latency of the beam measurement reporting process.

[0207] Specifically, the second bit is one or more bits in the first signaling.

[0208] For example, the second bit in the first signaling can be carried using an existing indication field. For instance, "0001" indicates that the terminal performs beam measurement on TCI state 0, while "0000" indicates that the terminal does not perform beam measurement on TCI state 0. Alternatively, one or more bits in the first signaling can also be carried using an independently defined indication field. For example, bit "0" indicates that beam measurement is performed on the indicated TCI state, and bit "1" indicates that beam measurement is not performed on the indicated TCI state.

[0209] In one embodiment, the first signaling is associated with the second signaling. In this embodiment, the terminal can quickly decode the second signaling through the first signaling and the association between the first and second signaling, thereby reducing processing latency.

[0210] Specifically, the first signaling is associated with the second signaling in one of the following two ways:

[0211] Method 1): The first signaling includes an indication field for triggering beam measurement, through which the first signaling is associated with the second signaling;

[0212] For example, when the first signaling and the second signaling are DCI signaling, the association between the first signaling and the second signaling may include: the DCI signaling for beam indication (the first signaling) includes a DCI field for triggering beam measurement signaling (the second signaling).

[0213] Method 2): The first signaling and the second signaling are associated in terms of time resources.

[0214] For example, the DCI signaling used to trigger beam measurement (second signaling) is the first DCI signaling used to trigger beam indication (first signaling) to trigger channel state information (CSI) reporting within the same time window (several time slots).

[0215] Furthermore, in one embodiment, the first signaling also includes a third bit, which is used to indicate whether the beam directions of the associated reference signals are the same.

[0216] In this embodiment, the associated reference signals are the first reference signal and the CSI-RS. The first reference signal and the CSI-RS are associated through quasi-co-addressing. When the beam directions of the associated reference signals are the same as those indicated in the first signaling, it can be used to optimize the receiving beam. When the beam directions of the associated reference signals are not the same, it can be used to optimize the transmitting beam.

[0217] In one embodiment, the method further includes: instructing the sink terminal to report beam measurement results via at least one of the following methods:

[0218] Method A1: The most recently scheduled Physical Uplink Shared Channel (PUSCH) after the time slot where the Physical Downlink Control Channel (PDCCH) carrying the first signaling is located is designated as the resource for the terminal to report beam measurement results. Method A2: The most recently available PUSCH is designated as the resource for the terminal to report beam measurement results.

[0219] Method C: The configured grant-based PUSCH is designated as the resource for reporting beam measurement results by the terminal.

[0220] In one embodiment, when the base station indicates a target beam for reception to the terminal, it further includes: indicating a target reference signal resource for beam measurement to the terminal by at least one of the following methods:

[0221] Method B1:

[0222] The Channel State Information Reference Signal (CSI-RS) resource set measured by a beam configured at a higher level is indicated as the target reference signal resource;

[0223] In this approach, a fixed set of CSI-RS resources specifically used for beam measurement is configured via RRC as the target reference signal resource for beam measurement.

[0224] For example, the target reference signal resource is a fixed non-zero power channel state information reference signal resource set (NZP CSI-RS resource set) configured through Radio Resource Control (RRC): {CSI-RS1, CSI-RS2, CSI-RS3, CSI-RS4}, which serves as a channel state information reference signal CSI-RS resource set specifically for beam measurement.

[0225] Method B2:

[0226] The target reference signal resource is indicated according to predefined rules.

[0227] Specifically, the predefined rules in method B2 include one of the following:

[0228] Method 1: Configure a CSI-RS resource set associated with the first reference signal via a quasi-co-located QCL; indicate the CSI-RS resource set as the target reference signal resource; wherein the first reference signal is a quasi-co-located QCL type D source reference signal in the Transmission Control Indication (TCI) state of the first signaling.

[0229] For example, the target reference signal resource can be a resource in CSI-RS resource set 1 associated with SSB1 configured by the base station via RRC before the base station sends the first signaling, where SSB1 is the target beam indicated in the first signaling.

[0230] like Figure 3As shown, a beam measurement reporting process based on a hierarchical architecture is used as an example to introduce the second method for determining target reference signal resources.

[0231] First, the base station configures the SSB resource set {SSB1, SSB2, SSB3, SSB4, SSB5, SSB6, SSB7, SSB8} via RRC, and simultaneously configures the CSI-RS resource set associated with this SSB resource set. For example... Figure 4 The diagram illustrates the association between SSB3 and the CSI-RS resource set {CSI-RS4, CSI-RS5, CSI-RS6}. The associated reference signals are connected via a quasi-co-addressable QCL. For example, the QCL-type DRS of each CSI-RS resource in the CSI-RS resource set is the same SSB signal. For instance, the QCL-type DRS of all eight CSI-RS resources {CSI-RS1, CSI-RS2, CSI-RS3, CSI-RS4, CSI-RS5, CSI-RS6, CSI-RS7, CSI-RS8} in CSI-RS resource set 1 is SSB 1.

[0232] Specifically, beam measurement reporting may include the following steps:

[0233] Step 31: The base station triggers beam measurement.

[0234] Specifically, the base station configures a non-periodic trigger state for channel state information (CSI) and an SSB measurement set {SSB1, SSB2, SSB3, SSB4}. In the nth time slot, the base station sends DCI1, triggering the terminal to measure and report the SSB resource set.

[0235] Step 32: The terminal reports beam measurements as instructed by the base station.

[0236] Specifically, the terminal measures the Layer 1 Reference Signal Received Power (L1-RSRP) of the SSB measurement set {SSB1, SSB2, SSB3, SSB4} and sorts the measured L1-RSRP values ​​to obtain L1-RSRP1>L1-RSRP3>L1-RSRP2>L1-RSRP4. The terminal reports the beams SSB1 and SSB3 with the largest and second largest L1-RSRPs, along with their corresponding L1-RSRP1 and L1-RSRP3 values.

[0237] Step 33: The base station selects a beam and performs beam indication based on the measurement results reported by the terminal, and the base station triggers fine beam measurement.

[0238] Upon receiving the report from the terminal, the base station identifies the new beam as the transmit beam of SSB1 and uses SSB1 to update the QCL type D source RS contained in the TCI-state of the beam indication DCI2. Simultaneously, the base station instructs the terminal to perform subsequent aperiodic measurement reporting via the second bit (e.g., 1 bit) in DCI2.

[0239] The aperiodic measurement resources (target reference signal resources) are the resources in CSI-RS resource set 1 associated with SSB1, which were previously configured by the base station via RRC. The aperiodic measurement reporting resources (resources for reporting beam measurement results) are determined in a predefined manner; for example, they are transmitted on the most recently scheduled PUSCH after the time slot of the PDCCH carrying beam indication DCI1, or on a recently available PUSCH resource, or on a configured grant-based PUSCH resource.

[0240] Step 34: The terminal receives the beam indication DCI2 from the base station and sends an ACK feedback on the beam indication.

[0241] Step 35: New beam activated.

[0242] Step 36: The terminal reports the beam measurement results according to the instructions of the base station.

[0243] Following the instructions of the base station, the terminal uses the beam that receives SSB1 to receive CSI-RS resource set 1, and measures CSI-RS1, CSI-RS2, CSI-RS3, CSI-RS4, CSI-RS5, CSI-RS6, CSI-RS7, and CSI-RS8 contained in the resource set to obtain the corresponding L1-RSRPs sorted from largest to smallest: L1-RSRP2, L1-RSRP3, L1-RSRP5, L1-RSRP1, L1-RSRP4, L1-RSRP7, L1-RSRP8, and L1-RSRP6.

[0244] The terminal reports the beam CRI2+L1-RSRP2 on the most recently scheduled PUSCH after the time slot of the PDCCH carrying the beam indicator DCI, according to predefined resource indications. Upon receiving the terminal's report, the base station transmits the PDCCH / PDSCH using the beam that transmitted CSI-RS in subsequent downlink transmissions.

[0245] The second type:

[0246] The reference signal resource associated with the time-domain location and the first resource is indicated as the target reference signal resource; wherein, the first resource is the time-domain resource where the downlink physical control channel (PDCCH) carrying the first signaling is located;

[0247] The first signaling is a signaling from the base station to the terminal indicating the target beam to be received.

[0248] For example, the first non-zero power channel state information reference signal resource set (NZP-CSI-RS-Resource Set) in the M time slots following the time slot of the PDCCH carrying DCI1 (first signaling) is used as the reference signal resource for beam measurement. The terminal uses the receive beam of the QCL type-D source RS contained in the TCI state to receive and measure the reference signal used for beam measurement.

[0249] It should be noted that the correlation described in method B2 includes: the correlation between the reference signals is QCL.

[0250] It should be noted that all descriptions of the terminal side in the above embodiments are applicable to the embodiments of this beam indication method and can achieve the same technical effect.

[0251] like Figure 6 As shown, this application embodiment provides a terminal 60, including:

[0252] The receiving module 61 is configured to receive a target beam for reception indicated by a first bit of a first signaling signal from a base station, and beam measurement indication information of the target beam indicated by a second bit of the first signaling signal; or, when receiving a target beam for reception indicated by the first signaling signal from a base station, to receive beam measurement indication information of the target beam indicated by the second signaling signal from the base station.

[0253] The result reporting module 62 is used to report the measurement result information after measuring the target beam according to the beam measurement instruction information.

[0254] Optionally, the first signaling is associated with the second signaling.

[0255] Optionally, the first signaling is associated with the second signaling as follows:

[0256] The first signaling includes an indication field for triggering beam measurement, through which the first signaling is associated with the second signaling; or, the first signaling and the second signaling are associated in terms of time resources.

[0257] Optionally, terminal 60 also includes:

[0258] The first determining module is configured to determine the target reference signal resources used for beam measurement of the target beam by at least one of the following methods:

[0259] The channel state information reference signal (CSI-RS) resource set of a beam measurement configured at a higher level is determined as the target reference signal resource;

[0260] The target reference signal resource is determined according to predefined rules.

[0261] Optionally, when determining the target reference signal resource according to predefined rules, the first determining module is specifically used for:

[0262] The Channel State Information Reference Signal (CSI-RS) resource set associated with the first reference signal via a quasi-co-located QCL is determined as the target reference signal resource; wherein, the first reference signal is a quasi-co-located QCL type D source reference signal in the Transmission Control Indication (TCI) state used by the first signaling;

[0263] or,

[0264] The reference signal resource associated with the time-domain location and the first resource is determined as the target reference signal resource; wherein, the first resource is the time-domain resource where the downlink physical control channel (PDCCH) carrying the first signaling is located.

[0265] Optionally, the first signaling may also include a third bit, which is used to indicate whether the beam directions of the associated reference signals are the same.

[0266] Optionally, terminal 60 also includes:

[0267] The second determining module is used to determine the resources for reporting beam measurement results by at least one of the following methods:

[0268] The most recently scheduled Physical Uplink Shared Channel (PUSCH) after the time slot where the Physical Downlink Control Channel (PDCCH) carrying the first signaling is located is determined as the resource for the terminal to report beam measurement results.

[0269] The most recently available PUSCH is identified as the resource for the terminal to report beam measurement results;

[0270] The configured authorization-based PUSCH is determined as the resource for the terminal to report beam measurement results.

[0271] It should be noted that the apparatus provided in this application embodiment can implement all the method steps implemented in the above method embodiment and can achieve the same technical effect. Here, the parts that are the same as those in the method embodiment and the beneficial effects will not be described in detail.

[0272] like Figure 7 As shown, this embodiment of the invention also provides a terminal 70, including a processor 71, a transceiver 72, a memory 73, and a program stored in the memory 73 and executable on the processor 71; wherein the transceiver 72 is connected to the processor 71 and the memory 73 via a bus interface, and the processor is used to read the program in the memory and execute the following processes:

[0273] The transceiver 72 receives the target beam for reception indicated by the first bit of the first signaling from the base station, and the beam measurement indication information of the target beam indicated by the second bit of the first signaling; or when receiving the target beam for reception indicated by the first signaling from the base station, it receives the beam measurement indication information of the target beam indicated by the second signaling from the base station.

[0274] After measuring the target beam according to the beam measurement instruction information, the measurement result information is reported.

[0275] It should be noted that, in Figure 7 In this context, the bus architecture can include any number of interconnected buses and bridges, specifically linking various circuits together, represented by one or more processors (processor 71) and memory (memory 73). The bus architecture can also link various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and therefore will not be described further herein. The bus interface provides an interface. The transceiver 72 can be multiple elements, including transmitters and transceivers, providing a unit for communicating with various other devices over a transmission medium. For different transmitters, the user interface 74 can also be an interface capable of connecting external or internal devices, including but not limited to keypads, displays, speakers, microphones, joysticks, etc. The processor 71 is responsible for managing the bus architecture and general processing, and the memory 73 can store data used by the processor 71 during operation.

[0276] Optionally, the first signaling is associated with the second signaling.

[0277] Optionally, the first signaling is associated with the second signaling as follows:

[0278] The first signaling includes an indication field for triggering beam measurement, through which the first signaling is associated with the second signaling;

[0279] or,

[0280] The first signaling and the second signaling are associated in terms of time resources.

[0281] Optionally, the processor 71 is further configured to read the computer program in the memory and perform the following operations:

[0282] The target reference signal resource used for beam measurement of the target beam is determined by at least one of the following methods:

[0283] The channel state information reference signal (CSI-RS) resource set of a beam measurement configured at a higher level is determined as the target reference signal resource;

[0284] The target reference signal resource is determined according to predefined rules.

[0285] Optionally, when determining the target reference signal resource according to predefined rules, the processor 71 is further configured to perform the following operations:

[0286] The Channel State Information Reference Signal (CSI-RS) resource set associated with the first reference signal via a quasi-co-located QCL is determined as the target reference signal resource; wherein, the first reference signal is a quasi-co-located QCL type D source reference signal in the Transmission Control Indication (TCI) state used by the first signaling;

[0287] or,

[0288] The reference signal resource associated with the time-domain location and the first resource is determined as the target reference signal resource; wherein, the first resource is the time-domain resource where the downlink physical control channel (PDCCH) carrying the first signaling is located.

[0289] Optionally, the first signaling may also include a third bit, which is used to indicate whether the beam directions of the associated reference signals are the same.

[0290] Optionally, the processor 71 is further configured to read the computer program in the memory and perform the following operations:

[0291] The resource for reporting beam measurement results is determined by at least one of the following methods:

[0292] The most recently scheduled Physical Uplink Shared Channel (PUSCH) after the time slot where the Physical Downlink Control Channel (PDCCH) carrying the first signaling is located is determined as the resource for the terminal to report beam measurement results.

[0293] The most recently available PUSCH is identified as the resource for the terminal to report beam measurement results;

[0294] The configured authorization-based PUSCH is determined as the resource for the terminal to report beam measurement results.

[0295] This invention also provides a computer-readable storage medium storing a computer program thereon, wherein the computer program, when executed by a processor, implements the steps of a beam indication method applied to a terminal.

[0296] like Figure 8 As shown, an embodiment of the present invention provides a base station 80, comprising:

[0297] The transmitting module 81 is configured to transmit to the terminal a target beam for reception indicated by a first bit of the first signaling, and beam measurement indication information of the target beam indicated by a second bit of the first signaling; or, when indicating the target beam for reception to the terminal via the first signaling, it transmits beam measurement indication information of the target beam indicated by a second signaling to the terminal.

[0298] Optionally, the first signaling is associated with the second signaling.

[0299] Optionally, the first signaling is associated with the second signaling as follows:

[0300] The first signaling includes an indication field for triggering beam measurement, through which the first signaling is associated with the second signaling; or, the first signaling and the second signaling are associated in terms of time resources.

[0301] Optionally, base station 80 may also include:

[0302] A first processing module is configured to instruct the terminal on the target reference signal resources used for beam measurement by at least one of the following methods:

[0303] The Channel State Information Reference Signal (CSI-RS) resource set measured by a beam configured at a higher level is indicated as the target reference signal resource;

[0304] The target reference signal resource is indicated according to predefined rules.

[0305] Optionally, when the first processing module instructs the target reference signal resource according to predefined rules, it is specifically used for:

[0306] Configure a CSI-RS resource set associated with the first reference signal via a quasi-co-located QCL; indicate the CSI-RS resource set as the target reference signal resource; wherein the first reference signal is a quasi-co-located QCL type D source reference signal in the Transmission Control Indication (TCI) state of the first signaling;

[0307] or,

[0308] The reference signal resource associated with the time-domain location and the first resource is indicated as the target reference signal resource; wherein, the first resource is the time-domain resource where the downlink physical control channel (PDCCH) carrying the first signaling is located.

[0309] Optionally, the first signaling may also include a third bit, which is used to indicate whether the beam directions of the associated reference signals are the same.

[0310] Optionally, base station 80 may also include:

[0311] The second processing module is used to instruct the terminal to provide resources for reporting beam measurement results in at least one of the following ways:

[0312] The most recently scheduled Physical Uplink Shared Channel (PUSCH) after the time slot where the Physical Downlink Control Channel (PDCCH) carrying the first signaling is located is designated as the resource for the terminal to report beam measurement results; the most recently available PUSCH is designated as the resource for the terminal to report beam measurement results.

[0313] The configured license-based PUSCH is specifically designated as the resource for reporting beam measurement results by the terminal.

[0314] It should be noted that the apparatus provided in this application embodiment can implement all the method steps implemented in the above method embodiment and can achieve the same technical effect. Here, the parts that are the same as those in the method embodiment and the beneficial effects will not be described in detail.

[0315] like Figure 9 As shown, this embodiment of the invention also provides a base station 90, including a processor 91, a transceiver 92, a memory 93, and a program stored in the memory 93 and executable on the processor 91; wherein the transceiver 92 is connected to the processor 91 and the memory 93 via a bus interface, and the processor is used to read the program in the memory and execute the following processes:

[0316] The transceiver 92 sends to the terminal a target beam for reception indicated by a first bit of the first signaling, and beam measurement indication information of the target beam indicated by a second bit of the first signaling; or, when indicating the target beam for reception to the terminal via the first signaling, it sends to the terminal the beam measurement indication information of the target beam indicated by the second signaling.

[0317] It should be noted that, in Figure 9In this context, the bus architecture can include any number of interconnected buses and bridges, specifically linking various circuits together, represented by one or more processors (processor 91) and memory (memory 93). The bus architecture can also link various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and therefore will not be described further herein. The bus interface provides an interface. The transceiver 92 can be multiple elements, including transmitters and transceivers, providing a unit for communicating with various other devices over a transmission medium. The processor 91 is responsible for managing the bus architecture and general processing, and the memory 93 can store data used by the processor 91 during operation.

[0318] Optionally, the first signaling is associated with the second signaling.

[0319] Optionally, the first signaling is associated with the second signaling in the following ways: the first signaling includes an indication field for triggering beam measurement, through which the first signaling is associated with the second signaling; or, the first signaling is associated with the second signaling in terms of time resources.

[0320] Optionally, the processor 91 is further configured to read the computer program in the memory and perform the following operations:

[0321] The target reference signal resources used by the terminal for beam measurement are indicated by at least one of the following methods:

[0322] The Channel State Information Reference Signal (CSI-RS) resource set measured by a beam configured at a higher level is indicated as the target reference signal resource;

[0323] The target reference signal resource is indicated according to predefined rules.

[0324] Optionally, when the processor 91 instructs the target reference signal resource according to predefined rules, it is also specifically used for the following operations:

[0325] Configure a CSI-RS resource set associated with the first reference signal via a quasi-co-located QCL; indicate the CSI-RS resource set as the target reference signal resource; wherein the first reference signal is a quasi-co-located QCL type D source reference signal in the Transmission Control Indication (TCI) state of the first signaling;

[0326] or,

[0327] The reference signal resource associated with the time-domain location and the first resource is indicated as the target reference signal resource; wherein, the first resource is the time-domain resource where the downlink physical control channel (PDCCH) carrying the first signaling is located.

[0328] Optionally, the first signaling may also include a third bit, which is used to indicate whether the beam directions of the associated reference signals are the same.

[0329] Optionally, the processor 91 is further configured to read the computer program in the memory and perform the following operations:

[0330] The terminal is instructed to report beam measurement results using at least one of the following methods:

[0331] The most recently scheduled Physical Uplink Shared Channel (PUSCH) after the time slot where the Physical Downlink Control Channel (PDCCH) carrying the first signaling is located is designated as the resource for the terminal to report beam measurement results; the most recently available PUSCH is designated as the resource for the terminal to report beam measurement results.

[0332] The configured license-based PUSCH is specifically designated as the resource for reporting beam measurement results by the terminal.

[0333] This invention also provides a computer-readable storage medium storing a computer program thereon, wherein the computer program, when executed by a processor, implements the steps of a beam pointing method applied to a base station. This achieves the same technical effect and will not be repeated here to avoid repetition. The readable storage medium can be any available medium or data storage device accessible to the processor, including but not limited to magnetic storage (e.g., floppy disks, hard disks, magnetic tapes, magneto-optical disks (MO), etc.), optical storage (e.g., CDs, DVDs, BDs, HVDs, etc.), and semiconductor storage (e.g., ROMs, EPROMs, EEPROMs, non-volatile memory (NAND flash), solid-state drives (SSDs), etc.).

[0334] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product implemented on one or more computer-usable storage media (including, but not limited to, disk storage and optical storage) containing computer-usable program code.

[0335] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer-executable instructions. These computer-executable instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in one or more blocks of the flowchart illustrations and / or one or more blocks of the block diagrams.

[0336] These processor-executable instructions may also be stored in a processor-readable memory that can instruct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the processor-readable memory produce an article of manufacture including instruction means that implement the functions specified in one or more flowcharts and / or one or more blocks of a block diagram.

[0337] These processor-executable instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer-implemented process, such that the instructions, which execute on the computer or other programmable apparatus, provide steps for implementing the functions specified in one or more flowcharts and / or one or more blocks of a block diagram.

[0338] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A beam pointing method, characterized in that, Applied to terminals, including: When the receiving base station indicates the target beam for reception via a first signaling, the receiving base station receives beam measurement indication information of the target beam indicated by a second signaling; wherein, when the first signaling and the second signaling are downlink control information (DCI) signaling, the second signaling is the first DCI that triggers channel state information (CSI) reporting within the same time window as the first signaling. The Channel State Information Reference Signal (CSI-RS) resource set associated with the first reference signal via a quasi-co-located QCL is determined as the target reference signal resource for beam measurement of the target beam; wherein the first reference signal is the quasi-co-located QCL type D source reference signal in the Transmission Control Indication (TCI) state used for the first signaling; or, the reference signal resource associated with the time domain location of the first resource is determined as the target reference signal resource for beam measurement of the target beam; wherein the first resource is the time domain resource where the downlink physical control channel (PDCCH) carrying the first signaling is located; After measuring the target beam according to the beam measurement instruction information, the measurement result information is reported.

2. The method according to claim 1, wherein, The first signaling also includes a third bit, which is used to indicate whether the beam directions of the associated reference signals are the same.

3. The beam pointing method according to claim 1, characterized in that, The method further includes: The terminal determines the resources for reporting beam measurement results through at least one of the following methods: The most recently scheduled Physical Uplink Shared Channel (PUSCH) after the time slot where the Physical Downlink Control Channel (PDCCH) carrying the first signaling is located is determined as the resource for the terminal to report beam measurement results. The most recently available PUSCH is identified as the resource for the terminal to report beam measurement results; The configured authorization-based PUSCH is determined as the resource for the terminal to report beam measurement results.

4. A beam pointing method, characterized in that, Applied to base stations, including: When instructing the terminal to receive a target beam via a first signaling, beam measurement indication information of the target beam indicated by a second signaling is sent to the terminal; wherein, when the first signaling and the second signaling are DCI signaling, the second signaling is the first DCI that triggers CSI reporting within the same time window as the first signaling; Configure a CSI-RS resource set associated with the first reference signal via a quasi-co-located QCL; indicate the CSI-RS resource set as the target reference signal resource used by the terminal for target beam measurement; wherein the first reference signal is a quasi-co-located QCL type D source reference signal in the Transmission Control Indication (TCI) state used for the first signaling; or, indicate the reference signal resource associated with the first resource in the time domain as the target reference signal resource used by the terminal for target beam measurement; wherein the first resource is the time domain resource where the downlink physical control channel (PDCCH) carrying the first signaling is located.

5. The beam pointing method according to claim 4, characterized in that, The first signaling also includes a third bit, which is used to indicate whether the beam directions of the associated reference signals are the same.

6. The beam pointing method according to claim 4, characterized in that, The method further includes: The terminal is instructed to report beam measurement results using at least one of the following methods: The most recently scheduled Physical Uplink Shared Channel (PUSCH) after the time slot where the Physical Downlink Control Channel (PDCCH) carrying the first signaling is located is designated as the resource for the terminal to report beam measurement results; the most recently available PUSCH is designated as the resource for the terminal to report beam measurement results. The configured license-based PUSCH is specifically designated as the resource for reporting beam measurement results by the terminal.

7. A terminal, characterized in that, include: A transceiver, a memory, a processor, and a program stored in the memory and executable on the processor; the processor is configured to read the program from the memory and execute the following processes: When the receiving base station indicates the target beam for reception via a first signaling, the receiving base station receives beam measurement indication information of the target beam indicated by a second signaling; wherein, when the first signaling and the second signaling are DCI signaling, the second signaling is the first DCI that triggers CSI reporting within the same time window as the first signaling; After measuring the target beam according to the beam measurement instruction information, the processor reports the measurement result information; the processor is also used to read the computer program in the memory and perform the following operations: The Channel State Information Reference Signal (CSI-RS) resource set associated with the first reference signal via a quasi-co-located QCL is determined as the target reference signal resource for beam measurement of the target beam; wherein, the first reference signal is a quasi-co-located QCL type D source reference signal in the Transmission Control Indication (TCI) state used by the first signaling; or, The reference signal resource associated with the time-domain location and the first resource is determined as the target reference signal resource used for beam measurement of the target beam; wherein, the first resource is the time-domain resource where the downlink physical control channel (PDCCH) carrying the first signaling is located.

8. The terminal according to claim 7, characterized in that, The first signaling also includes a third bit, which is used to indicate whether the beam directions of the associated reference signals are the same.

9. The terminal according to claim 7, characterized in that, The processor is also configured to read the computer program in the memory and perform the following operations: The resource for reporting beam measurement results is determined by at least one of the following methods: The most recently scheduled Physical Uplink Shared Channel (PUSCH) after the time slot where the Physical Downlink Control Channel (PDCCH) carrying the first signaling is located is determined as the resource for the terminal to report beam measurement results. The most recently available PUSCH is identified as the resource for the terminal to report beam measurement results; The configured authorization-based PUSCH is determined as the resource for the terminal to report beam measurement results.

10. A base station, comprising: A transceiver, a memory, a processor, and a program stored in the memory and executable on the processor; characterized in that the processor is configured to read the program from the memory and execute the following processes: When instructing the terminal to receive a target beam via a first signaling, beam measurement indication information of the target beam indicated by a second signaling is sent to the terminal; wherein, when the first signaling and the second signaling are DCI signaling, the second signaling is the first DCI that triggers CSI reporting within the same time window as the first signaling; The processor is also configured to read the computer program in the memory and perform the following operations: Configure a CSI-RS resource set associated with the first reference signal via a quasi-co-located QCL; indicate the CSI-RS resource set as the target reference signal resource used by the terminal for target beam measurement; wherein the first reference signal is a quasi-co-located QCL type D source reference signal in the Transmission Control Indication (TCI) state used for the first signaling; or, indicate the reference signal resource associated with the first resource in the time domain as the target reference signal resource used by the terminal for target beam measurement; wherein the first resource is the time domain resource where the downlink physical control channel (PDCCH) carrying the first signaling is located.

11. The base station according to claim 10, characterized in that, The first signaling also includes a third bit, which is used to indicate whether the beam directions of the associated reference signals are the same.

12. The base station according to claim 10, characterized in that, The processor is also configured to read the computer program in the memory and perform the following operations: The terminal is instructed to report beam measurement results using at least one of the following methods: The most recently scheduled Physical Uplink Shared Channel (PUSCH) after the time slot where the Physical Downlink Control Channel (PDCCH) carrying the first signaling is located is designated as the resource for the terminal to report beam measurement results; the most recently available PUSCH is designated as the resource for the terminal to report beam measurement results. The configured license-based PUSCH is specifically designated as the resource for reporting beam measurement results by the terminal.

13. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by a processor, it implements the beam pointing method as described in any one of claims 1 to 6.

14. A terminal, characterized in that, include: The receiving module is configured to receive beam measurement indication information of the target beam indicated by the base station via a second signaling when the base station indicates the target beam for reception via a first signaling; wherein, when the first signaling and the second signaling are DCI signaling, the second signaling is the first DCI that triggers CSI reporting within the same time window as the first signaling; The first determining module is configured to determine the Channel State Information Reference Signal (CSI-RS) resource set associated with the first reference signal via a quasi-co-located QCL as the target reference signal resource for beam measurement of the target beam; wherein the first reference signal is a quasi-co-located QCL type D source reference signal in the Transmission Control Indication (TCI) state used for the first signaling; or, to determine the reference signal resource associated with the first resource in the time domain as the target reference signal resource for beam measurement of the target beam; wherein the first resource is the time domain resource where the downlink physical control channel (PDCCH) carrying the first signaling is located; The result reporting module is used to measure the target beam according to the beam measurement instruction information and then report the measurement result information.

15. A base station, characterized in that, include: The transmitting module is configured to transmit beam measurement indication information of the target beam indicated by the second signal to the terminal when the terminal is indicated by the first signal to receive the target beam; wherein, when the first signal and the second signal are DCI signaling, the second signal is the first DCI that triggers CSI reporting within the same time window as the first signal; The second determining module is configured to configure a CSI-RS resource set associated with the first reference signal via a quasi-co-located QCL; and to indicate the CSI-RS resource set as the target reference signal resource used by the terminal for target beam measurement; wherein the first reference signal is a quasi-co-located QCL type D source reference signal in the Transmission Control Indication (TCI) state used for the first signaling; or, to indicate the reference signal resource associated with the first resource in the time domain as the target reference signal resource used by the terminal for target beam measurement; wherein the first resource is the time domain resource where the downlink physical control channel (PDCCH) carrying the first signaling is located.

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