Communication method and device, storage medium and computer program product

Abstract

The invention discloses a communication method and device, a storage medium and a computer program product, relates to the technical field of wireless communication, and is used for enabling a spatial relationship configuration scheme of a network device to be suitable for a multi-beam transmission scene. In the present application, a terminal device receives first information, the first information including information for indicating indexes of a plurality of resources. A terminal device transmits a first signal, the spatial relationship of which is associated with the spatial relationship of a plurality of resources. Since the first information received by the terminal device indicates the plurality of resources, the terminal device can transmit the first signal through the spatial relationship of the plurality of resources based on the indication of the second information. Through the scheme provided by the invention, the configuration problem of the spatial relationship in a multi-beam transmission scene can be solved.

Description

Technical Field

[0001] The present application relates to the field of wireless communication technology, and in particular to a communication method, device, storage medium and computer program product. Background Art

[0002] In order to overcome the problem of high-frequency millimeter wave path loss, array technology can be used to form high-gain directional beams for communication between network devices and terminal devices, which can improve antenna gain and compensate for path loss. Before using directional beams for communication, beam training is required between network devices and terminal devices to achieve beam alignment.

[0003] The current beam training process includes: the network device configures multiple pilot resources for the terminal device, and the network device sends pilot signals on multiple pilot resources; the terminal device measures the pilot signals on these pilot resources, and reports the first 1 to 4 pilot resources with the best measurement results to the network device. After that, the network device can select a certain pilot resource as a reference signal associated with the transmission configuration indicator state (TCI-state) or spatial relation and configure it to the terminal device based on these measurement results reported by the terminal device. The network device performs downlink transmission and / or uplink transmission on the pilot resource, and the pilot resource is also used to guide the uplink transmission and / or downlink transmission of the terminal device.

[0004] However, in some current scenarios (such as "low frequency band" scenarios), network equipment will perform downlink transmission and / or uplink transmission based on multiple beams, but the current spatial relationship configuration scheme cannot match such scenarios. Summary of the invention

[0005] Embodiments of the present application provide a communication method, device, storage medium, and computer program product for making a spatial relationship configuration scheme of a network device suitable for a multi-beam transmission scenario.

[0006] In a first aspect, the present application provides a communication method, which is executed by a terminal device, which may be a terminal equipment or a chip inside the terminal equipment.

[0007] In the present application, a terminal device receives first information, the first information includes information for indicating indexes of a plurality of resources, and the terminal device transmits a first signal. The spatial relationship of the first signal is associated with the spatial relationship of the plurality of resources.

[0008] Since the first information received by the terminal device indicates multiple resources, the terminal device can transmit the first signal through the spatial relationship of the multiple resources based on the indication of the second information. The solution provided by the present application can solve the configuration problem of spatial relationship in multi-beam transmission scenarios.

[0009] In a possible implementation, the terminal device receives second information, the second information includes resource configuration information, and the plurality of resources belong to resources indicated by the resource configuration information. The terminal device sends third information, the third information includes at least one measurement result, and the at least one measurement result is obtained by measuring a reference signal corresponding to the resource indicated by the resource configuration information. One measurement result of the at least one measurement result is associated with at least one resource indicated by the resource configuration information.

[0010] Since the network device configures resources for the terminal device through resource configuration information, the terminal device can measure the reference signal on the resources configured by the network device according to the resource configuration information. Since the terminal device sends the third information, the network device can select resources with better channel quality based on the measurement results to improve subsequent communication quality.

[0011] In a possible implementation, the third information also includes: a resource index associated with one or more measurement results in at least one measurement result. The third information may include a resource index associated with all measurement results in at least one measurement result, or the third information may include a resource index associated with some measurement results in at least one measurement result. A measurement result may be associated with one or more resource indexes. A measurement result may be obtained by the terminal device measuring a reference signal on a resource corresponding to a resource index associated with the measurement result. In this way, the network device can determine the resource index associated with the measurement result with better channel quality, and then assist it in subsequent signal transmission.

[0012] In a possible implementation, the number of resource indexes associated with two measurement results in at least one measurement result is different or the same. In a possible implementation, the resource indexes associated with two measurement results in at least one measurement result have no intersection or have an intersection. This can improve the flexibility of the solution.

[0013] The first information may indicate the index of the resource in a variety of ways. In one possible implementation, the first information includes the indexes of multiple resources. In another possible implementation, the first information may include some indication information, and the indication information may indicate the resource index. Several examples are given below for introduction.

[0014] Example 1: Information for indicating the index of multiple resources includes: information for indicating the number of resources K1. The resource index associated with the number of resources K1 is the index of K1 resources associated with the first measurement result in the third information. The first measurement result is a measurement result associated with K1 resources in at least one measurement result. K1 may be a positive integer. In a possible implementation, K1 may be an integer greater than 1.

[0015] In one possible implementation, at least one measurement result includes multiple measurement results, and two of the multiple measurement results are associated with different numbers of resources. In this way, the terminal device can determine the measurement result associated with the number of resources through the number of resources, and then determine the resource index corresponding to the measurement result. This solution can save the number of bits occupied by signaling.

[0016] Example 2: The information used to indicate the indexes of multiple resources includes: information used to indicate the measurement result index K2. The measurement result indicated by the measurement result index K2 belongs to at least one measurement result, and the measurement result index K2 is associated with multiple resources.

[0017] In a possible implementation manner, the measurement result index K2 is the K2th measurement result in the at least one measurement result in the third information. K2 may be a positive integer.

[0018] In one possible implementation, at least one measurement result includes multiple measurement results, and the number of resources associated with two measurement results in the multiple measurement results is the same. The number of resources associated with the measurement results in the two measurement results is multiple. In this way, the terminal device can determine the corresponding measurement result through the measurement result index, and then determine the resource index corresponding to the measurement result according to the correspondence between the measurement result and the resource index in the third information. This solution can save the number of bits occupied by signaling.

[0019] In another possible implementation, at least one measurement result in the third information is associated with M1 resources in the resources configured by the resource configuration information, where M1 is an integer greater than 1. The M1 resources correspond to multiple resource groups, and one measurement result in at least one measurement result is associated with a resource group in at least one resource group. The multiple resource groups include resource groups formed in the form of resource combinations obtained by selecting K0 resources from the M1 resources. K0 is an integer greater than 1. It can also be understood that a resource group includes K0 resources in the M1 resources. In another possible implementation, the measurement results in the third information correspond to all combinations of M1 resources. There may be a corresponding relationship between the measurement results and the resource groups, and the network device may determine the resource group corresponding to each measurement result based on the corresponding relationship. The network device may also enable the terminal device to determine the corresponding resource index by indicating the resource group index, and this solution may save the number of bits occupied by signaling.

[0020] Example 3: The information used to indicate the indexes of the plurality of resources includes: information used to indicate the resource group index K3. The resource group corresponding to the resource group index K3 includes a plurality of resources.

[0021] In one possible implementation, at least one measurement result includes multiple measurement results. The resource index associated with the resource group index K3 is an index of at least two resources included in the resource group corresponding to the resource group index K3. There is a corresponding relationship between the resource group index K3 and the multiple resources associated with the multiple measurement results, and the corresponding relationship can be preset or indicated by the network device.

[0022] In a possible implementation, when the information for indicating the indexes of multiple resources includes information for indicating the resource group index K3: one measurement result of at least one measurement result in the third information is associated with a resource in the third information. For example, the third information includes multiple measurement results and multiple resources, and the multiple measurement results and the multiple resources may correspond one to one. The network device indicates multiple resources to the terminal device based on the measurement results. In a possible implementation, the network device may indicate the indexes of the multiple resources to the terminal device. In order to further reduce signaling overhead, the network device and the terminal device may agree on the index of the resource group. In this way, the network device may indicate the resource group index K3 to the terminal device, and then the terminal device may determine the resource group corresponding to the resource group index K3 based on the correspondence between the pre-agreed resource group index and the resource group, and then determine the resource group corresponding to the resource group index K3 from the multiple resources of the third information, and then obtain the index of the resource included in the resource group.

[0023] For example, the third information includes resource #0, resource #1 and resource #2. It is pre-agreed that: the resource group corresponding to resource group index #0 is a combination of the first resource and the second resource, that is, resource #0 and resource #1; the resource group corresponding to resource group index #1 is a combination of the first resource and the third resource, that is, resource #0 and resource #2; the resource group corresponding to resource group index #2 is a combination of the second resource and the third resource, that is, resource #1 and resource #2. When the network device indicates resource group index #0, the terminal device determines that the resources corresponding to resource group index #0 are resource #0 and resource #1 based on the index of the resource reported in the third information. This can save signaling overhead.

[0024] In another possible implementation, the implementation in which the first information includes indexes of multiple resources can be used in combination with the implementations provided in Examples 1 to 3 above. For example, the information used to indicate the indexes of multiple resources includes the indexes of multiple resources and multiple items of the contents involved in any multiple implementations in Examples 1 to 3 above. For related content, please refer to the above description and will not be repeated here.

[0025] In a possible implementation, at least one measurement result includes a first measurement result and a second measurement result. The first measurement result is obtained by the terminal device measuring a reference signal on a resource indicated by a resource index associated with a first measurement result received by at least one first antenna port. The second measurement result is obtained by the terminal device measuring a reference signal on a resource indicated by a resource index associated with a second measurement result received by at least one second antenna port. At least one first antenna port is different from at least one second antenna port. In a possible implementation, there is no intersection between at least one first antenna port and at least one second antenna port, that is, none of the ports are the same. In another possible implementation, there is an intersection between at least one first antenna port and at least one second antenna port, but at least one first antenna port is different from all second antenna ports or at least one second antenna port is different from all first antenna ports. The two measurement results obtained by the terminal device can reflect the difference in quality of signal transmission between different antenna ports. The solution can set the granularity of signal transmission to the antenna port level so that subsequent terminal devices can use a better antenna port for signal transmission.

[0026] In a possible implementation manner, the resource indexes associated with the first measurement result and the second measurement result are the same or different.

[0027] In a second aspect, the present application provides a communication method. The method is performed by a network device, and the terminal device may be a network device (such as an access network device), or a unit, module or chip inside the network device (such as a chip inside the access network device).

[0028] In the present application, the network device sends first information, the first information includes information for indicating indexes of multiple resources, and the network device transmits a first signal, the spatial relationship of the first signal is associated with the spatial relationship of the multiple resources.

[0029] Since the first information received by the terminal device indicates multiple resources, the spatial relationship of the subsequent first signal can be associated with the spatial relationship of the multiple resources, that is, the terminal device can transmit the first signal through the spatial relationship of the multiple resources based on the indication of the second information. The solution provided by this application can solve the configuration problem of spatial relationships in multi-beam transmission scenarios.

[0030] In a possible implementation, the network device sends second information, the second information includes resource configuration information, and the multiple resources belong to the resources indicated by the resource configuration information. The network device receives third information, the third information includes at least one measurement result, and the at least one measurement result is obtained by measuring a reference signal corresponding to the resource indicated by the resource configuration information. One measurement result of the at least one measurement result is associated with at least one resource indicated by the resource configuration information. For the beneficial effects, refer to the relevant content of the first aspect above, which will not be repeated here.

[0031] For the relevant descriptions of the first information and the third information and the beneficial effects, please refer to the relevant contents of the first aspect mentioned above and will not be repeated here.

[0032] In a third aspect, a communication device is provided, which may be the aforementioned terminal device or network device. The communication device may include a communication unit and a processing unit to perform any aspect of the above-mentioned first aspect to the second aspect, or to perform any possible implementation of the first aspect to the second aspect. The communication unit is used to perform functions related to sending and receiving. The communication unit may be referred to as a transceiver unit. Optionally, the communication unit includes a receiving unit and a sending unit. In one design, the communication device is a communication chip, the processing unit may be one or more processors or processor cores, and the communication unit may be an input / output circuit, an input / output interface, or an antenna port of the communication chip.

[0033] In another design, the communication unit may be a transmitter and a receiver, or the communication unit may be a transmitter and a receiver.

[0034] Optionally, the communication device also includes various modules that can be used to execute any aspect of the first to second aspects above, or execute any possible implementation of the first to second aspects.

[0035] In a fourth aspect, a communication device is provided, which may be the aforementioned terminal device or network device. The communication device may include a processor and a memory to perform any aspect of the first to second aspects, or any possible implementation of the first to second aspects. Optionally, a transceiver is further included, the memory is used to store a computer program or instruction, and the processor is used to call and run the computer program or instruction from the memory, and when the processor executes the computer program or instruction in the memory, the communication device performs any aspect of the first to second aspects, or any possible implementation of the first to second aspects.

[0036] Optionally, there are one or more processors and one or more memories.

[0037] Optionally, the memory may be integrated with the processor, or the memory may be provided separately from the processor.

[0038] Optionally, the transceiver may include a transmitter (transmitter) and a receiver (receiver).

[0039] In a fifth aspect, a communication device is provided, which may be the aforementioned terminal device or network device. The communication device may include a processor to perform any aspect of the first aspect to the second aspect, or to perform any possible implementation of the first aspect to the second aspect. The processor is coupled to a memory. Optionally, the communication device further includes a memory. Optionally, the communication device further includes a communication interface, and the processor is coupled to the communication interface.

[0040] In one implementation, when the communication device is a terminal device or a network device, the communication interface may be a transceiver, or an input / output interface. Optionally, the transceiver may be a transceiver circuit. Optionally, the input / output interface may be an input / output circuit.

[0041] In another implementation, when the communication device is a chip or a chip system, the communication interface may be an input / output interface, an interface circuit, an output circuit, an input circuit, a pin or a related circuit on the chip or the chip system, etc. The processor may also be embodied as a processing circuit or a logic circuit.

[0042] In a sixth aspect, a system is provided, the system comprising the above-mentioned terminal device.

[0043] In a possible implementation manner, the system may further include a network device.

[0044] In the seventh aspect, a computer program product is provided, which includes: a computer program (also referred to as code, or instruction), which, when executed, enables a computer to execute any one of the first to second aspects described above, or any possible implementation of the first to second aspects.

[0045] In an eighth aspect, a computer-readable storage medium is provided, which stores a computer program (also referred to as code, or instructions). When the computer program is run on a computer, the computer executes any one of the first to second aspects above, or executes any possible implementation of the first to second aspects.

[0046] In a ninth aspect, a processing device is provided, comprising: an interface circuit and a processing circuit. The interface circuit may include an input circuit and an output circuit. The processing circuit is used to receive a signal through the input circuit and transmit a signal through the output circuit, so that any aspect of the first aspect to the second aspect above, or any possible implementation method of executing the first aspect to the second aspect is implemented.

[0047] In the specific implementation process, the above-mentioned processing device can be a chip, the input circuit can be an input pin, the output circuit can be an output pin, and the processing circuit can be a transistor, a gate circuit, a trigger, and various logic circuits. The input signal received by the input circuit can be, for example, but not limited to, received and input by a receiver, and the signal output by the output circuit can be, for example, but not limited to, output to a transmitter and transmitted by the transmitter, and the input circuit and the output circuit can be the same circuit, which is used as an input circuit and an output circuit at different times. This application does not limit the specific implementation of the processor and various circuits.

[0048] In one implementation, when the communication device is a terminal device or a network device, the interface circuit may be a radio frequency processing chip in the terminal device or the network device, and the processing circuit may be a baseband processing chip in the terminal device or the network device.

[0049] In another implementation, the communication device may be a part of a terminal device or a network device, such as an integrated circuit product such as a system chip or a communication chip. The interface circuit may be an input / output interface, an interface circuit, an output circuit, an input circuit, a pin or a related circuit on the chip or the chip system. The processing circuit may be a logic circuit on the chip. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] Figure 1 A schematic diagram of a communication system architecture applicable to an embodiment of the present application;

[0051] Figure 2 A possible flow chart of a communication method provided in an embodiment of the present application;

[0052] Figure 3 A schematic diagram of the structure of a communication device provided in an embodiment of the present application;

[0053] Figure 4 Another structural schematic diagram of a communication device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0054] Before introducing the present application, some terms in the embodiments of the present application are briefly explained to facilitate understanding by those skilled in the art.

[0055] (1) Reference signal

[0056] In an embodiment of the present application, the reference signal may include a channel state information reference signal (CSI) reference signal (RS), a synchronization signal block (SSB), a sounding reference signal (SRS), a demodulation reference signal (DMRS), or a tracking reference signal (TRS), a phase tracking reference signal (PTRS) or a cell reference signal (CRS), etc.

[0057] (2) Resources.

[0058] In the embodiment of the present application, the network device may configure a resource set and / or resources for the terminal device.

[0059] The resource set may include at least one of a CSI synchronization signal block (CSI syschronization signal block, CSI-SSB) resource set, a CSI interference measurement (CSI interference measurement, CSI-IM) resource set, a non zero power channel state information reference signal (non zero power-channel state information reference signal, NZP-CSI-RS) resource set, or a zero power channel state information reference signal (zero power-channel stateinformation reference signal, ZP-CSI-RS) resource set.

[0060] The resource may include at least one of a CSI-SSB resource, a CSI-IM resource, a NZP-CSI-RS resource, a ZP-CSI-RS resource, an SRS resource, a DMRS resource, a PTRS resource, a CRS resource, or a TRS resource. In the embodiment of the present application, the resource is introduced as a channel state information reference signal (CSI-RS) resource as an example. The CSI-RS resource is also written as a CSIRS resource in this article, and the CSIRS resource can also be replaced by other resources.

[0061] (3) Beam.

[0062] The embodiment of beam in the new radio (NR) protocol can be a spatial domain filter, or a spatial filter, or a spatial domain parameter, a spatial parameter, a spatial domain setting, a spatial setting, or quasi-colocation (QCL) information, QCL assumption, QCL indication, etc. The beam can be indicated by a transmission configuration indication state (TCI-state) parameter or by a spatial relationship parameter.

[0063] Therefore, in this application, beam can be replaced by spatial filter, spatial filter, spatial parameter, spatial parameter, spatial setting, spatial setting, QCL information, QCL assumption, QCL indication, TCI-state (downlink TCI-state, uplink TCI-state), spatial relationship, etc. The above terms are also equivalent to each other. Beam can also be replaced by other terms representing beams, which are not limited in this application.

[0064] A beam used to transmit a signal may be referred to as a transmission beam (Tx beam), and may also be referred to as a spatial domain transmission filter, a spatial transmission filter, a spatial domain transmission parameter, or a spatial transmission parameter, a spatial domain transmission setting, or a spatial transmission setting. A downlink transmission beam may be indicated by a TCI-state.

[0065] The beam used to receive the signal may be referred to as a reception beam (Rx beam), and may also be referred to as a spatial domain reception filter, a spatial reception filter, a spatial domain reception parameter, or a spatial reception parameter, a spatial domain reception setting, or a spatial reception setting. The uplink transmit beam may be indicated by a spatial relationship, or an uplink TCI-state, or an SRS resource (indicating a transmit beam using the SRS). Therefore, the uplink beam may also be replaced by an SRS resource.

[0066] The transmit beam may refer to the distribution of signal strength in different directions of space after the signal is transmitted by the antenna, and the receive beam may refer to the distribution of signal strength in different directions of space of the wireless signal received from the antenna.

[0067] In addition, the beam may be a wide beam, a narrow beam, or other types of beams. The technology for forming the beam may be a beamforming technology or other technologies. The beamforming technology may specifically be a digital beamforming technology, an analog beamforming technology, or a hybrid digital / analog beamforming technology.

[0068] Beams generally correspond to resources. For example, when performing beam measurement, the network device measures different beams through different resources. The terminal device feeds back the measured resource quality, and the network device knows the quality of the corresponding beam. During data transmission, beam information is also indicated by its corresponding resources. For example, the network device indicates the information of the physical downlink sharing channel (PDSCH) beam of the terminal device through the transmission configuration indicator (TCI) field in the downlink control information (DCI).

[0069] Optionally, multiple beams with the same or similar communication characteristics are regarded as one beam. One beam may include one or more antenna ports for transmitting data channels, control channels, and sounding signals. One or more antenna ports forming a beam may also be regarded as an antenna port set.

[0070] In the embodiments of the present application, unless otherwise specified, a beam refers to a transmission beam of a network device. In beam measurement, each beam of a network device corresponds to a resource, so the beam corresponding to the resource can be uniquely identified by the index of the resource.

[0071] (4)TCI-state (used to indicate the downlink beam).

[0072] Network devices can generate different beams pointing to different transmission directions. In downlink data transmission, when a network device uses a specific beam to send data to a terminal device, it needs to inform the terminal device of the transmission beam information it uses, so that the terminal device can use the receiving beam corresponding to the transmission beam to receive the data sent by the network device.

[0073] In the 3GPP R15 / R16 protocol, the network device uses the TCI field in the DCI to indicate to the terminal device the relevant information of the transmit beam it uses. Specifically, the TCI field size is 3 bits, which can specifically represent 8 different field values ​​(codepoints). Each value of the TCI field corresponds to a TCI-state index, and the TCI-state index can uniquely identify a TCI-state. The TCI-state includes several parameters, through which the relevant information of the transmit beam can be determined. The TCI-state is configured by the network device for each terminal device. The structure of the TCI-state is as follows: Figure 1 As shown. Each TCI-state includes its own index TCI-state identifier and two QCL information (QCL information, QCL-Info). Each QCL-Info includes a cell field and bwp-Id, which respectively indicate which bwp (Bandwidth part) of which cell the TCI-state is applied to, that is, different cells or different bwp of the same cell can be configured with different QCL-Info. QCL-Info also includes a referenceSignal (reference signal), which is used to indicate which reference signal resource constitutes a QCL (quasi-co-location) relationship.

[0074] In the R15 / R16 protocol, the word "beam" generally does not appear directly, and beam is generally replaced by other terms. For example, in data transmission and channel measurement, beams correspond to reference signal resources, and one beam corresponds to one reference signal resource. Therefore, when we say which reference signal resource constitutes a QCL relationship here, we actually mean which beam constitutes a QCL relationship. A QCL relationship refers to two reference signal resources (or two antenna ports, where antenna ports and reference signal resources also correspond one to one) having certain identical spatial parameters. Which specific spatial parameters are the same depends on the type of the QCL-Info, that is, another field of QCL-Info, qcl-Type. qcl-Type can have four values ​​{typeA, typeB, typeC, typeD}. Taking typeD as an example, typeD indicates that two reference signal resources have the same spatial reception parameter information, that is, the two beams have the same receiving beam. At most one of the two QCL-Info included in the TCI-state can be TypeD.

[0075] (5) Spatial relation (used to indicate uplink beam).

[0076] In the current protocol, the transmit beam for uplink transmission is indicated by a spatial relationship, which functions similarly to TCI-state and is used to inform the terminal device which transmit beam to use for uplink transmission.

[0077] The spatial relationship also needs to be configured through radio resource control (RRC) signaling first. RRC signaling may include the id of the spatial relationship, the cell id, the target reference signal resource, the path loss measurement reference signal, the power control parameters, etc. Among them, the target reference signal resource (which may be one of SRS / SSB / CSI-RS) is used to indicate the corresponding uplink beam. If the uplink transmission adopts spatial relationship #1, and the spatial relationship #1 includes a target reference signal resource #2, it means that the transmission beam used for the uplink transmission is the transmission / reception beam of the target reference signal. For example, when the target reference signal resource is the uplink resource SRS, it means that the transmission beam used for the uplink transmission is the transmission beam of the SRS (the transmission beam of the SRS is known). For another example, the target reference signal resource is a downlink resource such as SSB / CSI-RS, which means that the transmission beam used for the uplink transmission is the reception beam of the SSB / CSI-RS (the reception beam of the SSB / CSI-RS is known).

[0078] The network equipment can configure multiple spatial relationships for the terminal device. Then one of them is activated through the media access control control element (MAC CE) for the corresponding data transmission. Uplink transmission includes physical uplink control channel (PUCCH), SRS, physical uplink shared channel (PUSCH), etc., all of which require corresponding spatial relationships. The spatial relationship of PUCCH is indicated by MAC CE signaling. The spatial relationship of SRS is also indicated by MAC CE signaling. When PUSCH is transmitted, it will be associated with a specific SRS and use the spatial relationship of the SRS for transmission.

[0079] (6) Antenna ports and antenna port groups.

[0080] The antenna port can be a physical antenna, or an antenna port (such as an antenna port), or a pilot antenna port (such as a CSI-RS antenna port, an SRS antenna port, a DMRS antenna port, a PTRS antenna port, a CRS antenna port, a TRS antenna port, an SSB antenna port, etc.), or a reference signal antenna port, or a virtual antenna port. Antenna ports can be divided into receiving antenna ports and transmitting antenna ports. An antenna port can correspond to one or a group of physical antennas, and different antenna ports can correspond to different beams of the same physical antenna, or to different physical antennas, or to partially identical physical antennas. The antenna port can be an antenna port of a network device or an antenna port of a terminal device.

[0081] In the protocol, antenna ports are usually represented by antenna port or port, and can also be represented by resources (such as CSI-RS resources, SRS resources, DMRS resources, PTRS resources, CRS resources, TRS resources, SSB resources, etc.) or resource groups. In other words, the identifier of the antenna port in this application can be replaced with the identifier of the above content, for example, the antenna port can be replaced with the identifier of the resource, the identifier of the pilot resource, the identifier of the reference signal resource, etc.

[0082] An antenna port group contains one or more antenna ports, which usually correspond to a resource or resource group. A resource group contains one or more resources. The network device can configure one or more antenna ports or antenna port groups for the terminal device. Downlink data can be sent by the network device using one or more antenna ports and received by the terminal device based on one or more antenna ports. Uplink data can be sent by the terminal device using one or more antenna ports and received by the network device based on one or more antenna ports.

[0083] The antenna port group involved in the embodiments of the present application may include one or more antenna ports. The concept of the antenna port group can also be replaced by other names, such as resource group, pilot resource group, reference signal resource group, antenna port set, or antenna port set, etc., which is not limited in the embodiments of the present application.

[0084] Figure 1 The schematic diagram of the architecture of a communication system 1000 applicable to the embodiment of the present application is exemplarily shown. Figure 1 As shown, Figure 1 FIG. 1 is a schematic diagram of the architecture of a communication system 1000 used in an embodiment of the present application. Figure 1 As shown, the communication system includes a radio access network (RAN) 100 and a core network 200. Optionally, the communication system 1000 may also include the Internet 300. The RAN 100 includes at least one RAN node (such as Figure 1 110a and 110b in the figure, collectively referred to as 110), and may also include at least one terminal (such as Figure 1 RAN 100 may also include other RAN nodes, such as wireless relay equipment and / or wireless backhaul equipment ( Figure 1 (not shown in the figure). The terminal 120 is connected to the RAN node 110 by wireless means, and the RAN node 110 is connected to the core network 200 by wireless or wired means. The core network device in the core network 200 and the RAN node 110 in the RAN 100 may be independent and different physical devices, or may be the same physical device that integrates the logical functions of the core network device and the logical functions of the RAN node. Terminals and terminals and RAN nodes and RAN nodes may be connected to each other by wired or wireless means.

[0085] RAN100 may be an evolved universal terrestrial radio access (E-UTRA) system, an NR system, and a future radio access system defined in the 3rd generation partnership project (3GPP). RAN100 may also include two or more of the above-mentioned different radio access systems. RAN100 may also be an open RAN (open RAN, O-RAN).

[0086] The network device involved in the embodiments of the present application may be a RAN node. RAN node, also known as wireless access network equipment, RAN entity or access node, is used to help terminals access the communication system wirelessly. In one application scenario, the RAN node may be a base station, an evolved NodeB (eNodeB), a transmission reception point (TRP), a next generation base station (next generation NodeB, gNB) in the fifth generation (5th generation, 5G) mobile communication system, a next generation base station in the sixth generation (6th generation, 6G) mobile communication system, or a base station in a future mobile communication system. RAN nodes may be macro base stations (such as Figure 1 110a), or a micro base station or an indoor station (such as Figure 1 110b) in the figure, it can also be a relay node or a donor node.

[0087] In another application scenario, the cooperation of multiple RAN nodes can be used to help the terminal achieve wireless access, and different RAN nodes respectively implement part of the functions of the base station. For example, the RAN node can be a centralized unit (CU), a distributed unit (DU) or a radio unit (RU). The CU here completes the functions of the radio resource control protocol and the packet data convergence protocol (PDCP) of the base station, and can also complete the function of the service data adaptation protocol (SDAP); the DU completes the functions of the radio link control layer and the medium access control (MAC) layer of the base station, and can also complete the functions of part of the physical layer or all of the physical layer. For the specific description of the above-mentioned various protocol layers, please refer to the relevant technical specifications of 3GPP. RU can be used to implement the transceiver function of radio frequency signals. CU and DU can be two independent RAN nodes, or they can be integrated in the same RAN node, such as integrated in a baseband unit (BBU). RU can be included in a radio frequency device, such as a remote radio unit (RRU) or an active antenna unit (AAU). The CU can be further divided into two types of RAN nodes: CU-control plane and CU-user plane.

[0088] In different systems, RAN nodes may have different names. For example, in an O-RAN system, CU may be called an open CU (open CU, O-CU), DU may be called an open DU (open DU, O-DU), and RU may be called an open RU (open RU, O-RU). CU-CP may also be called O-CU-CP, and CU-UP may also be called O-CUP-UP. The RAN nodes in the embodiments of the present application may be implemented by software modules, hardware modules, or a combination of software modules and hardware modules. For example, the RAN node may be a server loaded with corresponding software modules. The embodiments of the present application do not limit the specific technology and specific device form adopted by the RAN node. For the convenience of description, the following description takes a base station as an example of a RAN node.

[0089] A terminal is a device with wireless transceiver function, which can send signals to a base station or receive signals from a base station. A terminal can also be called a terminal device, user equipment (UE), a mobile station, a mobile terminal, etc. The terminal can be widely used in various scenarios, for example, device-to-device (D2D), vehicle-to-everything (V2X) communication, machine-type communication (MTC), Internet of Things (IOT), virtual reality, augmented reality, industrial control, automatic driving, telemedicine, smart grid, smart furniture, smart office, smart wear, smart transportation, smart city, etc. The terminal can be a mobile phone, a tablet computer, a computer with wireless transceiver function, a wearable device, a vehicle, an airplane, a ship, a robot, a mechanical arm, a smart home device, etc. The embodiments of the present application do not limit the specific technology and specific device form adopted by the terminal.

[0090] Base stations and terminals can be fixed or movable. Base stations and terminals can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; they can also be deployed on the water surface; they can also be deployed on airplanes, balloons, and artificial satellites. The embodiments of this application do not limit the application scenarios of base stations and terminals.

[0091] The roles of the base station and the terminal can be relative, for example, Figure 1The helicopter or drone 120i in the figure can be configured as a mobile base station. For the terminal 120j that accesses the wireless access network 100 through 120i, the terminal 120i is a base station; but for the base station 110a, 120i is a terminal, that is, 110a and 120i communicate through the wireless air interface protocol. Of course, 110a and 120i can also communicate through the interface protocol between base stations. In this case, relative to 110a, 120i is also a base station. Therefore, base stations and terminals can be collectively referred to as communication devices. Figure 1 110a and 110b in the figure may be referred to as communication devices having base station functions. Figure 1 120a-120j in the figure can be called communication devices with terminal functions.

[0092] Base stations and terminals, base stations and base stations, and terminals and terminals can communicate through authorized spectrum, unauthorized spectrum, or both; they can communicate through spectrum below 6 gigahertz (GHz), spectrum above 6 GHz, or spectrum below 6 GHz and spectrum above 6 GHz. The embodiments of the present application do not limit the spectrum resources used for wireless communication.

[0093] In the embodiments of the present application, the functions of the base station may also be performed by a module (such as a chip) in the base station, or by a control subsystem including the base station function. The control subsystem including the base station function here may be a control center in the above-mentioned application scenarios such as smart grid, industrial control, smart transportation, and smart city. The functions of the terminal may also be performed by a module (such as a chip or a modem) in the terminal, or by a device including the terminal function.

[0094] In this application, the base station sends a downlink signal or downlink information to the terminal, and the downlink information is carried on the downlink channel; the terminal sends an uplink signal or uplink information to the base station, and the uplink information is carried on the uplink channel. In order to communicate with the base station, the terminal needs to establish a wireless connection with the cell controlled by the base station. The cell with which the terminal has established a wireless connection is called the service cell of the terminal. When the terminal communicates with the service cell, it will also be interfered by signals from neighboring cells.

[0095] The communication between the access network device and the terminal device may follow a certain protocol layer structure. Exemplarily, the protocol layer structure may include a control plane protocol layer structure and a user plane protocol layer structure. For example, the control plane protocol layer structure may include at least one of the following: a radio resource control (RRC) layer, a packet data convergence protocol (PDCP) layer, a radio link control (RLC) layer, a media access control (MAC) layer, or a physical (PHY) layer. For example, the user plane protocol layer structure may include at least one of the following: a service data adaptation protocol (SDAP) layer, a PDCP layer, an RLC layer, a MAC layer, or a physical layer.

[0096] The access network device may include a central unit (CU) and a distribution unit (DU). This design may be referred to as CU and DU separation. Multiple DUs may be centrally controlled by one CU. As an example, the interface between the CU and the DU is referred to as the F1 interface. Among them, the control plane (CP) interface may be F1-C, and the user plane (UP) interface may be F1-U. The embodiments of the present application do not limit the specific names of the interfaces. The CU and DU may be divided according to the protocol layers of the wireless network: for example, the functions of the PDCP layer and the protocol layers above (such as the RRC layer and the SDAP layer, etc.) are set in the CU, and the functions of the protocol layers below the PDCP layer (such as the RLC layer, the MAC layer, and the PHY layer, etc.) are set in the DU; for another example, the functions of the protocol layers above the PDCP layer are set in the CU, and the functions of the protocol layers below the PDCP layer are set in the DU, without limitation.

[0097] The above division of the processing functions of CU and DU according to the protocol layer is only an example, and the division can also be carried out in other ways. For example, the CU or DU can be divided into functions with more protocol layers, and the CU or DU can be divided into partial processing functions with protocol layers. For example, some functions of the RLC layer and the functions of the protocol layers above the RLC layer are set in the CU, and the remaining functions of the RLC layer and the functions of the protocol layers below the RLC layer are set in the DU. For another example, the functions of the CU or DU can be divided according to the service type or other system requirements, such as division by latency, and the functions whose processing time needs to meet the latency requirements are set in the DU, and the functions that do not need to meet the latency requirements are set in the CU.

[0098] Optionally, the CU may have one or more functions of the core network.

[0099] Optionally, the radio unit (RU) of the DU can be set remotely. Among them, the RU has a radio frequency function. Exemplarily, the DU and the RU can be divided at the PHY layer. For example, the DU can implement the high-level functions in the PHY layer, and the RU can implement the low-level functions in the PHY layer. Among them, when used for sending, the functions of the PHY layer may include at least one of the following: adding cyclic redundancy check (CRC) bits, channel coding, rate matching, scrambling, modulation, layer mapping, precoding, resource mapping, physical antenna mapping, or radio frequency transmission function. When used for receiving, the functions of the PHY layer may include at least one of the following: CRC check, channel decoding, rate matching, descrambling, demodulation, layer mapping, channel detection, resource demapping, physical antenna demapping, or radio frequency receiving function. Among them, the high-level functions in the PHY layer may include a part of the functions of the PHY layer, which is closer to the MAC layer; the low-level functions in the PHY layer may include another part of the functions of the PHY layer, for example, this part of the functions is closer to the radio frequency function. For example, the high-level functions in the PHY layer may include adding CRC bits, channel coding, rate matching, scrambling, modulation, and layer mapping, and the low-level functions in the PHY layer may include precoding, resource mapping, physical antenna mapping, and RF transmission functions; or, the high-level functions in the PHY layer may include adding CRC bits, channel coding, rate matching, scrambling, modulation, layer mapping, and precoding, and the low-level functions in the PHY layer may include resource mapping, physical antenna mapping, and RF transmission functions. For example, the high-level functions in the PHY layer may include CRC checking, channel decoding, rate matching, decoding, demodulation, and layer mapping, and the low-level functions in the PHY layer may include channel detection, resource demapping, physical antenna demapping, and RF reception functions; or, the high-level functions in the PHY layer may include CRC checking, channel decoding, rate matching, decoding, demodulation, layer mapping, and channel detection, and the low-level functions in the PHY layer may include resource demapping, physical antenna demapping, and RF reception functions.

[0100] Optionally, the functions of the CU can be further divided, and the control plane and the user plane can be separated and implemented through different entities. The separated entities are the control plane CU entity (i.e., CU-CP entity) and the user plane CU entity (i.e., CU-UP entity). The CU-CP entity and the CU-UP entity can be connected to the DU respectively. In the embodiment of the present application, the entity can be understood as a module or a unit, and its existence can be a hardware structure, a software module, or a hardware structure plus a software module, without limitation.

[0101] Optionally, any one of the above-mentioned CU, CU-CP, CU-UP, DU and RU can be a software module, a hardware structure, or a software module plus a hardware structure, without limitation. Among them, the existence forms of different entities can be the same or different. For example, CU, CU-CP, CU-UP and DU are software modules, and RU is a hardware structure. For the sake of brevity, all possible combinations are no longer listed here. These modules and their execution methods are also within the scope of protection of the embodiments of the present application. For example, when the method of the embodiment of the present application is executed by an access network device, it can be specifically executed by at least one of CU, CU-CP, CU-UP or DU.

[0102] based on Figure 1 The embodiment shown, Figure 2 A possible flow chart of a communication method provided in an embodiment of the present application is exemplified. Figure 2 The terminal device in the embodiment may be the aforementioned Figure 1 The terminal device or the chip inside the terminal device shown in Figure 2 The network device in the embodiment may be the aforementioned Figure 1 A network device in the network (such as a RAN node, such as a CU or DU) or a chip in a network device (such as a chip in a RAN node, such as a chip in a CU or DU).

[0103] like Figure 2 As shown, the method includes step 204 and step 205. In a possible implementation, the solution may also include step 201, step 202 and step 203. The solutions provided in step 201, step 202 and step 203 are optional implementations. Figure 2 In the embodiment shown in the figure, it may not be performed. Figure 2 Make an introduction.

[0104] Step 201: The network device sends second information.

[0105] Correspondingly, the terminal device receives the second information.

[0106] The second information in the embodiment of the present application can be carried in RRC signaling.

[0107] The second information includes resource configuration information, and the plurality of resources belong to the resources indicated by the resource configuration information.

[0108] In the embodiment of the present application, the network device may configure resources (such resources may be pilot resources, for example) for the terminal device through resource configuration information. The resources may be used for beam management, or beam training.

[0109] In one possible implementation, the resource configuration information may include an identification (identity, ID) of the resource. Alternatively, the resource configuration information may include an ID of a resource set and an ID of a resource. For example, the resource configuration information may be used to configure the one or more resource sets (resource Set), and each resource set (resource Set) may include one or more resources (resource). For the related description of resource sets and resources, please refer to the aforementioned content and will not be repeated here. Each resource configured by the resource configuration information includes one or more ports, which can be understood as a pilot antenna port (such as a CSI-RS antenna port, an SRS antenna port, a DMRS antenna port, a PTRS antenna port, a CRS antenna port, a TRS antenna port, an SSB antenna port, etc.), or a reference signal antenna port, or a virtual antenna port.

[0110] Step 202: The terminal device measures a reference signal corresponding to the resource indicated by the resource configuration information to obtain at least one measurement result.

[0111] In step 202, the terminal device may perform reception measurement on the reference signal through the physical layer. Step 202 may be performed by the DU, for example.

[0112] In the embodiment of the present application, the measurement result may include at least one of reference signal receiving power (RSRP), signal to interference-plus-noise ratio (SINR), channel rank indicator (RI), pre-coding matrix indicator (PMI), or channel quality indication (CQI). In the embodiment of the present application, the measurement result is RSRP as an example for illustration.

[0113] Furthermore, before measuring the reference signal corresponding to the resource indicated by the resource configuration information, the terminal device can also receive the channel state information reporting configuration sent by the network device. The channel state information reporting configuration can be used to indicate the specific measurement plan, reporting behavior, and resource configuration related to the measurement of the terminal device.

[0114] In the embodiment of the present application, a port group for sending a reference signal by a network device may correspond to one or more resources. In the embodiment of the present application, the resource corresponding to the reference signal may also be understood as a port group or port corresponding to the reference signal. A port group may include one or more ports, which may be understood as a pilot antenna port (such as a CSI-RS antenna port, an SRS antenna port, a DMRS antenna port, a PTRS antenna port, a CRS antenna port, a TRS antenna port, an SSB antenna port, etc.), or a reference signal antenna port, or a virtual antenna port.

[0115] In step 202, there are multiple schemes for the terminal device to measure, and two possible examples are given below through implementation A1 and implementation A2. In implementation A1, the terminal device can receive the reference signal based on the same receiving beam, the same antenna port, or the same receiving beam of the same antenna port, and then measure the reference signal. In implementation A2, the terminal device can receive the reference signal based on different receiving beams, different antenna ports, or different receiving beams of the same antenna port, and then measure the reference signal.

[0116] In implementation A1, the terminal device may receive a reference signal based on the same receiving beam, and then measure the reference signal to obtain a measurement result. In another possible implementation, the terminal device may also receive a reference signal based on the same antenna port, and then measure the reference signal to obtain a measurement result. In another possible implementation, the terminal device may also receive a reference signal based on the same receiving beam of the same antenna port, and then measure the reference signal to obtain a measurement result.

[0117] For example, there are four antenna ports on the terminal device side, namely p1, p2, p3 and p4. Table 1 below shows an example of the correspondence between the measurement results obtained by the terminal device and the resources and the antenna ports of the terminal device.

[0118] Table 1 Example of the correspondence between the measurement results obtained by the terminal device, the resources, and the antenna ports of the terminal device

[0119]

[0120] Take the second row of Table 1 as an example: the resource corresponding to the reference signal corresponding to the measurement result RSRP#0 is CSIRS resource #0. The antenna port for receiving the reference signal on the terminal device side corresponding to the measurement result RSRP#0 is {p1, p2, p3, p4}. The content of this row can be understood as: the terminal device measures the reference signal sent by the network device on CSIRS resource #0 received by the antenna port {p1, p2, p3, p4} to obtain RSRP#0. Alternatively, the content of this row can also be understood as: the terminal device receives the reference signal indicated by the pilot antenna port group CSIRS resource #0 of the network device based on the antenna port {p1, p2, p3, p4} (the received energy value can be understood as RSRP#0). The pilot antenna port group CSIRS resource #0 can also be understood as the pilot antenna port group corresponding to CSIRS resource #0, and can also be understood as the network device sending the reference signal on CSIRS resource #0 through the pilot antenna port group.

[0121] Similarly, the content of the third row of Table 1 can be understood as: the terminal device measures the reference signal sent by the network device on CSIRS resource #0 and CSIRS resource #1 received by the antenna ports {p1, p2, p3, p4} to obtain RSRP #1.

[0122] In the embodiment of the present application, when a measurement result corresponds to reference signals on multiple resources, the measurement result may be obtained by directly measuring the reference signals on the multiple resources by the terminal device. Alternatively, the terminal device may measure the reference signal on each of the multiple resources respectively, and then calculate the multiple measurement results obtained (such as averaging or weighted average, etc.), and regard the calculation result as the measurement result corresponding to the reference signals on the multiple resources.

[0123] Similarly, the sixth line can be understood as follows: the terminal device measures the reference signal sent by the network device on CSIRS resource #n-1 and CSIRS resource #n received by the antenna ports {p1, p2, p3, p4}, and obtains RSRP #(n*(n-1) / 2). The other lines are similar and will not be repeated here.

[0124] In an embodiment of the present application, a terminal device may obtain multiple measurement results, one of the multiple measurement results may be obtained by the terminal device measuring a reference signal on a single resource, and another of the multiple measurement results may be obtained by the terminal device measuring reference signals on multiple resources. The number of resources corresponding to two of the multiple measurement results may be the same or different. In another possible implementation, each of the multiple measurement results is obtained by measuring a reference signal transmitted on a single resource. In another possible implementation, each of the multiple measurement results is obtained by measuring a reference signal transmitted on multiple resources, the number of resources corresponding to any two measurement results may be the same or different, and the resources corresponding to any two measurement results may have an intersection or may not have an intersection. For example, the terminal device may measure the reference signal on CSIRS resource #0 to obtain RSRP #0, and may also measure the reference signals on CSIRS resource #0 and CSIRS resource #1 to obtain RSRP #1. An example is given in Table 1. In actual applications, the correspondence between the measurement results, resources, and antenna ports of the terminal device obtained by the terminal device may be part of the content in Table 1, and may also include content not shown in Table 1.

[0125] In the example of Table 1 above, a possible example of a terminal device receiving different reference signals based on the same antenna port is exemplified. In another possible implementation, the terminal device may receive a reference signal based on the same receive beam, and then measure the reference signal. In this implementation, the antenna port for receiving the reference signal on the terminal device side in the second column of Table 1 above may be replaced with a receive beam, for example, {p1, p2, p3, p4} in the second column of Table 1 above may be uniformly replaced with {receive beam #1, receive beam #2, receive beam #3, receive beam #4}. The rest of the content is similar to the example of Table 1 above and will not be repeated here.

[0126] In another possible implementation, the terminal device may also receive a reference signal based on the same receiving beam of the same antenna port, and then measure the reference signal. In this implementation, the antenna port for receiving the reference signal on the terminal device side in the second column of Table 1 above may be replaced with the antenna port and receiving beam for receiving the reference signal on the terminal device side, such as replacing {p1, p2, p3, p4} in the second column of Table 1 above with antenna ports {p1, p2, p3, p4} and receiving beams {receiving beam #1, receiving beam #2, receiving beam #3, receiving beam #4}. The rest of the content is similar to the example in Table 1 above and will not be repeated.

[0127] It can be seen from Implementation A1.1 that in this implementation, the terminal device can receive reference signals on a single or multiple resources based on the same receiving beam, the same antenna port, or the same receiving beam of the same antenna port, and then measure the reference signal to obtain a measurement result. A measurement result is obtained by the terminal device measuring a reference signal transmitted on a single or multiple resources. In this solution, the measurement result obtained by the terminal device can more accurately reflect the communication quality corresponding to the reference signal transmitted on each resource combination (a resource group may include a single or multiple resources).

[0128] In implementation A2, the terminal device may receive reference signals based on different receiving beams, and then measure the reference signals to obtain measurement results. In another possible implementation, the terminal device may also receive reference signals based on different antenna ports, and then measure the reference signals to obtain measurement results. In another possible implementation, the terminal device may also receive reference signals based on different receiving beams of the same antenna port, and then measure the reference signals to obtain measurement results.

[0129] In the embodiment of the present application, a measurement result may be obtained by the terminal device measuring a reference signal transmitted on one or more resources. The resources corresponding to the two measurement results may be the same or different. The antenna ports corresponding to the two measurement results may be one or more. When the resources corresponding to the two measurement results are the same, there may be no intersection or a partial intersection between the antenna ports corresponding to the two measurement results.

[0130] Several possible examples are introduced below by way of example in Table 2, Table 3, Table 4 and Table 5.

[0131] Please refer to Table 2, in which the terminal device measures the reference signals transmitted on the same resource received by different antenna ports respectively, and obtains multiple measurement results. The second row of Table 2 can be understood as: the terminal device measures the reference signal sent by the network device on CSIRS resource #0 received by antenna port p1, and obtains RSRP #0. The contents of other rows are similar and will not be repeated here. Through the example provided in Table 2, the two measurement results obtained by the terminal device can reflect the difference in the quality of signal transmission between different antenna ports. The scheme can set the granularity of signal transmission to the antenna port level so that subsequent terminal devices can use a better antenna port for signal transmission.

[0132] Table 2 Example of correspondence between measurement results obtained by the terminal device, resources, and antenna ports of the terminal device

[0133]

[0134] Please refer to Table 3, in which the terminal device measures the reference signals transmitted on the same resource group (a resource group may include one or more resources) received by different antenna ports respectively, and obtains multiple measurement results. The second row of Table 3 can be understood as: the terminal device measures the reference signal sent by the network device on CSIRS resource #0 and CSIRS resource #1 received by antenna port p1, and obtains RSRP #0. The contents of other rows are similar and will not be repeated here. Through the example provided in Table 3, the two measurement results obtained by the terminal device can reflect the difference in quality of signal transmission based on multiple resources between different antenna ports. The scheme can set the granularity of signal transmission to the antenna port level so that subsequent terminal devices can use a better antenna port for signal transmission.

[0135] Table 3 Example of correspondence between measurement results obtained by the terminal device, resources, and antenna ports of the terminal device

[0136]

[0137] Please refer to Table 4, in which the terminal device measures the reference signals transmitted on the same resource received by different antenna port groups (an antenna port group may include one or more antenna ports) respectively, and obtains multiple measurement results. The second row of Table 4 can be understood as: the terminal device measures the reference signal sent by the network device on CSIRS resource #0 received by antenna ports p1 and p2, and obtains RSRP #0. The contents of other rows are similar and will not be repeated here. Through the example provided in Table 4, the two measurement results obtained by the terminal device can reflect the difference in the quality of signal transmission between different antenna port groups. The scheme can set the granularity of signal transmission to the antenna port group level, so that subsequent terminal devices can use a better antenna port group for signal transmission.

[0138] Table 4 Example of correspondence between measurement results obtained by the terminal device, resources, and antenna ports of the terminal device

[0139]

[0140] Please refer to Table 5, in which the terminal device measures the reference signals transmitted on the same resource group (a resource group may include one or more resources) received by different antenna port groups (an antenna port group may include one or more antenna ports) respectively, and obtains multiple measurement results. The second row of Table 5 can be understood as: the terminal device measures the reference signal sent by the network device on CSIRS resource #0 and CSIRS resource #1 received by antenna ports p1 and p2, and obtains RSRP #0. The contents of other rows are similar and will not be repeated. Through the example provided in Table 5, the two measurement results obtained by the terminal device can reflect the difference in quality of signal transmission based on multiple resources between different antenna port groups. The scheme can set the granularity of signal transmission to the antenna port level so that subsequent terminal devices can use a better antenna port for signal transmission.

[0141] Table 5 Example of correspondence between measurement results obtained by the terminal device, resources, and antenna ports of the terminal device

[0142]

[0143]

[0144] In the examples of Table 2, Table 3, Table 4 and Table 5 above, a possible example of a terminal device receiving different reference signals based on different antenna ports is exemplified. In another possible implementation, the terminal device may receive reference signals based on different receive beams, and then measure the reference signals. In this implementation, the antenna ports for receiving reference signals on the second column of the terminal device side in Table 2, Table 3, Table 4 and Table 5 above may be replaced with receive beams, for example, p1 in Table 2, Table 3, Table 4 and Table 5 above may be replaced with receive beam #1, p2 may be replaced with receive beam #2, p3 may be replaced with receive beam #3, and p4 may be replaced with receive beam #4. The rest of the content is similar to the example in Table 1 above and will not be repeated here.

[0145] In the above embodiment, the two receiving beams may correspond to the same antenna port or to different antenna ports. For example, in another possible implementation, the terminal device may also receive reference signals based on different receiving beams of the same antenna port group (an antenna port group may include one antenna port or multiple antenna ports), and then measure the reference signals. In this implementation, the antenna port for receiving the reference signal on the terminal device side in the second column of Table 1 above may be replaced with the antenna port and receiving beam for receiving the reference signal on the terminal device side, and the antenna port for receiving the reference signal on the terminal device side in the second column of Tables 2, 3, 4 and 5 above may be replaced with the receiving beam, for example, p1 in Tables 2 and 3 above may be replaced with receiving beam #1 of antenna port #1, p2 may be replaced with receiving beam #2 of antenna port #1, p3 may be replaced with receiving beam #3 of antenna port #1, and p4 may be replaced with receiving beam #4 of antenna port #1. For example, replace p1 in the above Table 4 and Table 5 with the receiving beam #1 of antenna port #1, p2 with the receiving beam #1 of antenna port #2, p3 with the receiving beam #2 of antenna port #1, and p4 with the receiving beam #2 of antenna port #2. Taking the second row of Table 2 as an example, the replaced row can be understood as: the terminal device measures the reference signal sent by the network device on CSIRS resource #0 received based on the receiving beam #1 of antenna port #1, and obtains RSRP #0. The replaced row of the third row of Table 2 can be understood as: the terminal device measures the reference signal sent by the network device on CSIRS resource #0 received based on the receiving beam #2 of antenna port #1, and obtains RSRP #1. The rest of the content is similar and will not be repeated.

[0146] It can be seen from Implementation A2 that in this implementation, the terminal device can receive reference signals on a single or multiple resources based on different receiving beams, different antenna ports, or different receiving beams of the same antenna port, and then measure the reference signals to obtain measurement results. A measurement result is obtained by the terminal device measuring the reference signal transmitted on the resource based on different antenna ports and / or different receiving beams. In this solution, the measurement result obtained by the terminal device can more accurately reflect the difference between the corresponding channel qualities between each antenna port and / or each receiving beam, thereby assisting the terminal device in selecting a better antenna port and / or beam for signal transmission.

[0147] Step 203: The terminal device sends third information.

[0148] Correspondingly, the network device receives the third information.

[0149] In this embodiment of the present application, the third information can be carried on the PUCCH or PUSCH channel.

[0150] The third information includes at least one measurement result. The at least one measurement result is obtained by measuring the reference signal corresponding to the resource indicated by the resource configuration information. The at least one measurement result that the third information may include may be one measurement result or multiple measurement results. The number of measurement results included in the third information may be flexibly determined according to actual conditions. One of the at least one measurement result is associated with at least one resource indicated by the resource configuration information.

[0151] In another possible implementation, the third information may also include one or more resource indexes. The resource index may include a channel state information reference signal resource indicator (CSI-RS resource indicator, CRI), and / or a synchronization signal and physical broadcast signal block resource indicator (SS / PBCH Block Resource indicator, SSBRI). The number of resource indexes included in the third information in the embodiment of the present application, and the correspondence between the RSRP measurement value and the resource index may be determined by the terminal device itself, or predetermined by the protocol, or determined according to a preset rule, or indicated by the network device. For example, the number of resource indexes corresponding to each RSRP measurement value included in the third information may be equal to the value of the parameter "maxMIMOLayer-PDSCH" configured by the network device to the terminal device, or the number of resource indexes that the third information should include, and the correspondence between the RSRP measurement value and the resource index indicated in the channel state information measurement configuration configured by the network device.

[0152] The resource index in the third information may be one or more resource indexes associated with the measurement result in at least one measurement result, or may be described as the resource index corresponding to the measurement result. The measurement result is obtained by the terminal device measuring the reference signal on the resource corresponding to the resource index associated with the measurement result. In one possible implementation, the third information includes N resource indexes, and the selection of the N resource indexes may be the N resource indexes corresponding to the first few reference signal measurement values ​​with the largest reference signal measurement value (the number of reference signal measurement values ​​may be equal to N or may not be equal to N). The receiving antenna ports or beams on the terminal side corresponding to the N resources may be the same or different.

[0153] The number of resource indexes associated with the two measurement results in the third information is different or the same. The resource indexes associated with the two measurement results in the third information can be completely different, completely the same, or partially the same. It can also be understood that: the resource indexes associated with the two measurement results in at least one measurement result have no intersection or have an intersection.

[0154] The number of resource indexes in the third information may be equal to or the number of measurement results. Or the number of resource indexes in the third information is greater than the number of measurement results, for example, one measurement result may be associated with multiple resource indexes, and the measurement result is obtained by the terminal device measuring the signal transmitted on the resources corresponding to the multiple resource indexes. Alternatively, the number of resource indexes in the third information is less than the number of measurement results, for example, there is an intersection between the resource indexes corresponding to the two measurement results, and the association relationship between the resource indexes in the third information and the measurement results can be established through preset rules. In this case, the number of resource indexes to be indicated in the third information can be reduced. For related examples, please refer to the contents of Table 7 below, which will not be elaborated here.

[0155] In a possible implementation manner, the third information may also indicate an association relationship between a measurement result and a resource index, and the terminal device may explicitly or implicitly indicate an association relationship between a measurement result and a resource index. For example, the third information may include information for indicating an association relationship between a measurement result and a resource index. For another example, the third information does not include information for indicating an association relationship between a measurement result and a resource index. The association relationship between the measurement result and the resource index in the third information may be determined according to a preset rule or pre-agreed by a protocol. For example, there is a sorting relationship between each measurement result in the third information, and there is also a sorting relationship between each resource index in the third information. There is a corresponding relationship between the measurement result and the resource index (the corresponding relationship may be preset or indicated by the network device), and the network device may determine a resource index corresponding to a measurement result according to the corresponding relationship. For example, the third information includes {CSIRS resource #0, CSIRS resource #1, CSIRS resource #2}, and the third information also includes {RSRP #0, RSRP #1, RSRP #2}. Each RSRP corresponds to a resource index, and the network device may determine that RSRP#0 corresponds to CSIRS resource#0, RSRP#1 corresponds to CSIRS resource#1, and RSRP#2 corresponds to CSIRS resource#2.

[0156] There are multiple possible implementations for the association between the measurement results and resource indexes in the third information in the embodiment of the present application, which are exemplarily introduced below through implementation B1, implementation B2, implementation B3, and implementation B4. In implementation B1, one measurement result in the third information corresponds to one resource index. In implementation B2, the number of resource indexes corresponding to the two measurement results in the third information may be different. In implementation B3, the number of resource indexes corresponding to the two measurement results in the third information may be the same. In implementation B4, the measurement results in the third information may be measurement results corresponding to the resource group.

[0157] In implementation mode B1, the third information includes a resource index corresponding to each measurement result.

[0158] For example, the third information includes {CSIRS resource #0, CSIRS resource #1, CSIRS resource #2}, and the third information also includes {RSRP #0, RSRP #1, RSRP #2}. In the embodiment of the present application, CSIRS resource #0, CSIRS resource #1, and CSIRS resource #2, etc. can be regarded as examples of resource indexes, and RSRP #0, RSRP #1, and RSRP #2, etc. in the embodiment of the present application can be regarded as examples of indexes of measurement results. In one possible implementation, the RSRP sent by the terminal device in the third information may be one or more RSRPs with the best quality among the RSRPs obtained by the terminal device. For example, the channel quality indicated by RSRP #0 may be better than or have the same quality as the channel quality indicated by RSRP #1, the channel quality indicated by RSRP #1 may be better than or have the same quality as the channel quality indicated by RSRP #2, and the channel quality indicated by RSRP #2 may be better than or have the same quality as the channel quality indicated by RSRP #3. The relationship between the resource index and the measurement result in this example can be illustrated by Table 6.

[0159] Please refer to Table 6. The third information includes {CSIRS resource #0, CSIRS resource #1, CSIRS resource #2}, and {RSRP #0, RSRP #1, RSRP #2}. Each RSRP is associated with a resource index. In the second row of Table 6, RSRP #0 is obtained by the terminal device measuring the reference signal transmitted on the resource associated with the first resource index (i.e., CSIRS resource #0) in the third information. It can also be said that CSIRS resource #0 corresponds to RSRP #0. The contents of other rows are similar and will not be repeated here.

[0160] Table 6 Example of correspondence between resource index and measurement result

[0161]

[0162]

[0163] In implementation mode B2, the number of resource indexes corresponding to the two measurement results in the third information may be different.

[0164] In implementation B2, in a possible implementation, the number of resource indexes corresponding to any two measurement results in the third information is different, so that the network device can indicate multiple resource indexes to the terminal device by indicating the number of resources, and then the signaling overhead of the network device indicating the resource index can be reduced. The detailed description of this implementation can be found in the relevant description of the subsequent implementation C2.1, and no further elaboration is given here.

[0165] For example, the third information includes {CSIRS resource #0, CSIRS resource #1, CSIRS resource #2, CSIRS resource #3}, and {RSRP #0, RSRP #1, RSRP #2, RSRP #3}. The relationship between the resource index and the measurement result in this example can be illustrated by Table 7.

[0166] Please refer to Table 7. The first RSRP in the third information (i.e., RSRP#0) corresponds to the first resource index in the third information (i.e., CSIRS resource#0), the second RSRP in the third information (i.e., RSRP#1) corresponds to the first two resource indexes in the third information (i.e., CSIRS resource#0 and CSIRS resource#1), the third RSRP in the third information (i.e., RSRP#2) corresponds to the first three resource indexes in the third information (i.e., CSIRS resource#0, CSIRS resource#1, and CSIRS resource#2), and so on. It can be seen that there is a corresponding relationship between the measurement result and the resource index in this example, and the network device can determine a resource index corresponding to a measurement result based on the corresponding relationship. For related content, please refer to the example in Table 7 and will not be repeated here.

[0167] Table 7 Example of correspondence between resource index and measurement result

[0168]

[0169] For another example, the third information includes {CSIRS resource #0, CSIRS resource #1, CSIRS resource #2, CSIRS resource #3, CSIRS resource #4, CSIRS resource #5, CSIRS resource #6, CSIRS resource #7, CSIRS resource #8, and CSIRS resource #9}, and {RSRP #0, RSRP #1, RSRP #2, RSRP #3}. The relationship between the resource index and the measurement result in this example can be illustrated by Table 8.

[0170] Please refer to Table 8, the first RSRP in the third information (i.e., RSRP#0) corresponds to the first resource index in the third information (i.e., CSIRS resource#0), the second RSRP in the third information (i.e., RSRP#1) corresponds to the subsequent two resource indexes in the third information (i.e., CSIRS resource#1 and CSIRS resource#2), the third RSRP in the third information (i.e., RSRP#2) corresponds to the subsequent three resource indexes in the third information (i.e., CSIRS resource#3, CSIRS resource#4 and CSIRS resource#5), and so on. The network device can determine the resource index corresponding to each RSRP according to the preset rule. For related content, please refer to the example in Table 8 and will not be repeated here.

[0171] Table 8 Example of correspondence between resource index and measurement result

[0172]

[0173]

[0174] Through the example provided in implementation mode B2, the measurement result sent by the terminal device can correspond to one or more resource indexes, and the solution is relatively flexible. Therefore, when the subsequent network device needs to transmit signals based on multiple resources, it can also determine the quality of the signals transmitted on multiple resources based on the measurement results corresponding to the multiple resource indexes, and then select a better resource in the scenario of transmitting signals based on multiple resources. In addition, in the solution provided in Table 7, the resource index information carried in the third information is less, so that the signaling overhead can be reduced.

[0175] In implementation mode B3, the number of resource indexes corresponding to the two measurement results in the third information may be the same.

[0176] In one possible implementation, the number of resource indexes associated with any two measurement results in the third information is equal. The number is, for example, M, where M is a positive integer greater than 1. In one possible implementation, the terminal device can traverse any measurement results associated with M resource indexes and select the first few measurement results with the best quality to report (i.e., carried in the third information).

[0177] For example, the third information includes {CSIRS resource #0, CSIRS resource #1, CSIRS resource #2, CSIRS resource #3, CSIRS resource #4, CSIRS resource #5, CSIRS resource #6, CSIRS resource #7}, and {RSRP #0, RSRP #1, RSRP #2, RSRP #3}. The relationship between the resource index and the measurement result in this example can be illustrated by Table 9.

[0178] Please refer to Table 9, one RSRP in the third information corresponds to two measurement results, for example, the first RSRP in the third information (i.e., RSRP#0) corresponds to the first and second resource indexes in the third information (i.e., CSIRS resource#0 and CSIRS resource#1), the second RSRP in the third information (i.e., RSRP#1) corresponds to the subsequent two resource indexes in the third information (i.e., CSIRS resource#1, CSIRS resource#2), and so on. The network device can determine the resource index corresponding to each RSRP according to the preset rule. For related content, please refer to the example in Table 9 and will not be repeated here.

[0179] Table 9 Example of correspondence between resource index and measurement result

[0180]

[0181] Through the example provided in Table 9, multiple measurement results sent by the terminal device can correspond to multiple resource groups, and multiple resource groups can include the same number of resources. Therefore, when the subsequent network device needs to transmit multiple users based on real-time scheduling, for example, it needs to allocate a resource group including two resources to the user. It can choose from multiple resource groups, and the range of choices is relatively large, so that the user's signal and interference conditions can be comprehensively considered to select a more appropriate resource index reference for the current user's downlink or uplink transmission.

[0182] In implementation mode B4, the measurement result in the third information may be a measurement result corresponding to the resource group.

[0183] In one possible implementation, at least one measurement result is associated with M1 resources among the resources configured by the resource configuration information, and each measurement result in the at least one measurement result is associated with a resource group. In one possible implementation, a resource group includes K0 resources among the M1 resources, where K0 is an integer greater than 1. In another possible implementation, the measurement results in the third information correspond to all combinations of the M1 resources.

[0184] For example, the third information includes {CSIRS resource #0, CSIRS resource #1, CSIRS resource #2, CSIRS resource #3}, and {RSRP #0, RSRP #1, RSRP #2, RSRP #3, RSRP #4, RSRP #5}. The relationship between the resource index and the measurement result in this example can be illustrated by Table 10.

[0185] Please refer to Table 10. Each of the 6 RSRPs corresponds to two resource indexes, and the combination of resource indexes corresponding to the 6 RSRPs includes all combinations that can be formed by the 4 resource indexes. The association relationship between RSRP and the resource index combination can be preset or pre-determined by the protocol. The preset rules can be found in Table 10. It can be seen from Table 10 that the 4 resource indexes give 6 possible combinations based on the sequence relationship, and each measurement result corresponds to a resource index combination in sequence. For example, the third row in Table 10 can be understood as: the third information includes RSRP#1, which is obtained by the terminal device measuring the reference signal transmitted on the resources associated with CSIRS resource #0 and CSIRS resource #2. The contents of other rows are similar and will not be repeated.

[0186] Table 10 Example of correspondence between resource index and measurement result

[0187]

[0188] In another possible implementation, the third information may include two resource indexes and a measurement result, for example, the third information includes {CSIRS resource #0, CSIRS resource #1}, and {RSRP #0}. For related content, please refer to the example in Table 11, which will not be described in detail.

[0189] Table 11 Example of correspondence between resource index and measurement result

[0190]

[0191] Through the example provided by implementation mode B4, the measurement results sent by the terminal device can correspond to multiple resource indexes. Therefore, when the subsequent network device needs to transmit signals based on multiple resources, it can also determine the quality of the signals transmitted on multiple resources based on the measurement results corresponding to the multiple resource indexes, and then select better resources in the scenario of transmitting signals based on multiple resources.

[0192] In an embodiment of the present application, if a measurement result corresponds to multiple resources, it can be assumed that the multiple resources can be received by the same antenna port or the same beam of the terminal device, and the measurement result can be measured based on the same receiving antenna port or beam receiving multiple resources.

[0193] In an embodiment of the present application, the measurement results in the third information may be associated with antenna ports of one or more terminal devices, and the antenna ports on the terminal device side corresponding to the two measurement results may be the same or different, and may have an intersection or no intersection. In an embodiment of the present application, the resources (or pilot resources, or pilot antenna port groups on the network device side) corresponding to different antenna ports on the terminal device side may be the same, or different (for example, no intersection or partially the same).

[0194] For example, at least one measurement result includes a first measurement result and a second measurement result. The first measurement result is obtained by measuring a reference signal on a resource indicated by a resource index associated with a first measurement result received by at least one first antenna port by the terminal device. The second measurement result is obtained by measuring a reference signal on a resource indicated by a resource index associated with a second measurement result received by at least one second antenna port by the terminal device. The first antenna port in at least one first antenna port is different from the second antenna port in at least one second antenna port. The resource indexes associated with the first measurement result and the second measurement result are the same or different.

[0195] For example, the third information includes {RSRP#0, RSRP#1, RSRP#2}, and {CSIRS resource#0, CSIRS resource#1, CSIRS resource#2}. This example can be illustrated by Table 12.

[0196] Please refer to Table 12. The first measurement result (i.e., RSRP#0) is obtained by the terminal device measuring the reference signal transmitted on the resources associated with the first resource index (i.e., CSIRS resource #0) in the third information, the second measurement result (i.e., RSRP#1) is obtained by the terminal device measuring the reference signal transmitted on the resources associated with the second resource index (i.e., CSIRS resource #1) in the third information, and the third measurement result (i.e., RSRP#2) is obtained by the terminal device measuring the reference signal transmitted on the resources associated with the third resource index (i.e., CSIRS resource #2) in the third information.

[0197] In this example, the antenna ports of the terminal device associated with the two measurement results may be different. For example, RSRP#0 is associated with antenna port#1, RSRP#1 is associated with antenna port#2, and RSRP#1 is associated with antenna port#3. In a possible implementation, for a measurement result in the third information, the measurement result is the best one among multiple measurement results corresponding to the reference signal received by the antenna port of the terminal device associated with the measurement result on multiple resources.

[0198] Table 12 Example of correspondence between resource index and measurement result

[0199]

[0200] Step 204: The network device sends first information.

[0201] Correspondingly, the terminal device receives the first information.

[0202] In the embodiment of the present application, the first information may be carried in at least one of RRC signaling, DCI signaling, or MAC-CE.

[0203] The first information includes information indicating indexes of the plurality of resources.

[0204] The network device can indicate TCI information to the terminal device, such as TCI-state or spatial relationship information. If the TCI information is configured for downlink transmission, the TCI information can be used to guide the terminal device to select a downlink receive beam, for example, the terminal device can determine that the downlink receive beam contains the resources indicated by the TCI information. If the TCI information is configured for uplink transmission, the TCI information can be used to guide the terminal device to select an uplink transmit beam, for example, the terminal device can determine that the uplink transmit beam contains the resources indicated by the TCI information. If the TCI information is associated with multiple resources, and the multiple resources correspond to multiple beams, it can be considered that the network device uses the multiple beams to receive uplink signals, or uses the multiple beams to send downlink signals.

[0205] In an embodiment of the present application, the first information may include indexes of multiple resources. Or the first information does not include a resource index, but may include some information associated with the resource index, and the terminal device may determine the corresponding resource index based on this information. Two possible implementations are provided below by way of example through implementation C1 and implementation C2. In implementation C1, the information used to indicate the indexes of multiple resources includes the indexes of multiple resources. In implementation C2, the information used to indicate the indexes of multiple resources includes information associated with the indexes of the multiple resources.

[0206] In implementation C1, information indicating indexes of multiple resources includes indexes of multiple resources.

[0207] In a possible implementation manner, indexes of multiple resources may be carried in QCL-info included in TC-State in the first information.

[0208] Two possible examples are described below through Example C1.1 and Example C1.2. In Example C1.1, the resource index indicated by the first information is a resource index that needs to be referenced for signal transmission. In Example C1.2, the resource index indicated by the first information is a resource index that will not be referenced for signal transmission, and the terminal device determines the resource index that will be referenced for subsequent signal transmission based on the first information.

[0209] Example C1.1: The resource index indicated by the first information is a resource index that needs to be referenced for signal transmission.

[0210] Table 13 shows an example of information indicating indexes of a plurality of resources in the first information in a table format.

[0211] Please refer to the fifth row of Table 13. The information used to indicate the indexes of multiple resources includes {CSIRS resource #0, CSIRS resource #1}. If this information is configured for downlink transmission, the network device uses the spatial relationship (or transmit beam) corresponding to {CSIRS resource #0, CSIRS resource #1} to send a downlink signal; the terminal device selects the spatial relationship (or receive beam) of the downlink signal with reference to the spatial relationship (or receive beam) corresponding to {CSIRS resource #0, CSIRS resource #1}. It can also be understood that the transmit beam used for downlink transmission by the network device includes one or more transmit beams corresponding to CSIRS resource #0, and one or more transmit beams corresponding to CSIRS resource #1. The terminal device selects a suitable receive beam to receive the downlink transmission signal based on the transmit beam (or transmit beam set) corresponding to {CSIRS resource #0, CSIRS resource #1}. If this information is configured for uplink transmission, the terminal device selects the spatial relationship (or transmit beam) of the uplink signal by referring to the spatial relationship (or receive beam) corresponding to {CSIRS resource #0, CSIRS resource #1}; the network device selects the spatial relationship (or receive beam) of the uplink signal by referring to the spatial relationship (or receive beam) corresponding to {CSIRS resource #0, CSIRS resource #1}. The other lines are similar and will not be repeated here.

[0212] Table 13 Example of information used to indicate indexes of multiple resources in the first information

[0213]

[0214] In another possible implementation, the information for indicating the index of multiple resources in the first information in the embodiment of the present application can be associated with the antenna port of the terminal device. For example, the measurement result sent by the terminal device in the third information is associated with the antenna port of the terminal device, which can also be understood as the terminal device measuring the reference signal received by the antenna port to obtain the measurement result. In this way, the terminal device can assist the terminal device in determining the selection of the downlink receiving antenna port and / or uplink transmitting antenna port of the terminal device based on the resources indicated by the information for indicating the index of multiple resources.

[0215] Combined with the above Table 13, take the second row of the above Table 13 as an example, for example, CSIRS resource #0 is associated with antenna port #1 of the terminal device. If this information is configured for downlink transmission, the terminal device refers to the spatial relationship (or receiving beam) corresponding to {CSIRS resource #0} to select the spatial relationship (or receiving beam) of the downlink signal, and receives the downlink signal through antenna port #1. If this information is configured for uplink transmission, the terminal device refers to the spatial relationship (or receiving beam) corresponding to {CSIRS resource #0} to select the spatial relationship (or transmitting beam) of the uplink signal, and sends it through antenna port #1. Other contents are similar and will not be repeated.

[0216] Example C1.2: The resource index indicated by the first information is a resource index that will not be referenced by signal transmission, and the terminal device determines the resource index that will be referenced by subsequent signal transmission based on the first information.

[0217] Table 14 shows an example of information indicating indexes of a plurality of resources in the first information in a table format.

[0218] Please refer to the third row of Table 14. The information used to indicate the indexes of multiple resources includes {CSIRS resource #0, CSIRS resource #1}. If the information is configured for downlink transmission, the network device uses a spatial relationship (or transmission beam) different from the spatial relationship (or transmission beam) corresponding to {CSIRS resource #0, CSIRS resource #1} to send a downlink signal. If the information is configured for uplink transmission, the terminal device selects the spatial relationship (or transmission beam) of the uplink signal with reference to a spatial relationship different from the spatial relationship (or receiving beam) corresponding to {CSIRS resource #0, CSIRS resource #1}. For example, the network device uses a spatial relationship orthogonal to the spatial relationship (or transmission beam) corresponding to {CSIRS resource #0, CSIRS resource #1} to send a downlink signal. For another example, the terminal device selects the spatial relationship (or transmission beam) of the uplink signal with reference to a spatial relationship orthogonal to the spatial relationship (or receiving beam) corresponding to {CSIRS resource #0, CSIRS resource #1}. The contents of other rows are similar and will not be repeated.

[0219] Table 14 Example of information used to indicate indexes of multiple resources in the first information

[0220]

[0221] In another possible implementation, the information for indicating the index of multiple resources in the first information in the embodiment of the present application can be associated with the antenna port of the terminal device. For example, the measurement result sent by the terminal device in the third information is associated with the antenna port of the terminal device, which can also be understood as the terminal device measuring the reference signal received by the antenna port to obtain the measurement result. In this way, the terminal device can assist the terminal device in determining the selection of the downlink receiving antenna port and / or uplink transmitting antenna port of the terminal device based on the resources indicated by the information for indicating the index of multiple resources.

[0222] Combined with the above Table 14, take the second row of the above Table 14 as an example, for example, CSIRS resource #0 is associated with antenna port #1 of the terminal device. If this information is configured for downlink transmission, the terminal device selects a spatial relationship (or receiving beam) of the downlink signal that is different from the spatial relationship (or receiving beam) corresponding to the reference {CSIRS resource #0}, and does not receive the downlink signal through antenna port #1. If this information is configured for uplink transmission, the terminal device selects a spatial relationship (or transmitting beam) of the uplink signal that is different from the spatial relationship (or receiving beam) corresponding to the reference {CSIRS resource #1}, and does not send it through antenna port #1. Other contents are similar and will not be repeated.

[0223] In implementation C2, information indicating indexes of multiple resources includes information associated with the indexes of the multiple resources.

[0224] In implementation C2, the information used to indicate the indexes of multiple resources may include multiple implementation forms, which are introduced below through implementation C2.1 and implementation C2.2. In implementation C2.1, the information used to indicate the indexes of multiple resources includes information used to indicate the number of resources K1. In the embodiment of the present application, K1 is an integer greater than 1, and K1 may also be equal to 1. In implementation C2.2, the information used to indicate the indexes of multiple resources includes information used to indicate the measurement result index K2. In implementation C2.3, the information used to indicate the indexes of multiple resources includes information used to indicate the resource group index K3.

[0225] In a possible implementation, the information for indicating the indexes of multiple resources may include an index indication of a channel state information reporting configuration (CSI-ReportConfigId), and the index indication of the channel state information reporting configuration (CSI-ReportConfigId) may be associated with the third information, that is, one index indication of a channel state information reporting configuration (CSI-ReportConfigId) may correspond to one third information. The network device may configure multiple channel state information reporting configurations (CSI-ReportConfig) for the terminal device, and for each channel state information reporting configuration (CSI-ReportConfig), the terminal device reports one third information.

[0226] In implementation C2.1, the information indicating the indexes of the plurality of resources includes information indicating the number of resources K1.

[0227] The resource quantity K1 may be associated with the resource index in the third information. For example, the resource quantity K1 is associated with the resource index of K1 corresponding to the first measurement result in the third information.

[0228] The third information may include one or more measurement results. The third information may include one measurement result, which is referred to as a first measurement result for distinction, and the first measurement result is a measurement result associated with K1 resources in at least one measurement result. The resources associated with the resource quantity K1 are the K1 resources associated with the first measurement result.

[0229] In another possible implementation, the third information includes multiple measurement results, and any two of the multiple measurement results are associated with different numbers of resource indexes. In this case, the network device can carry information indicating the number of resources K1 in the first information, and the terminal device can uniquely determine the measurement result associated with the number of K1 resources in the third information based on the information of K1, and then determine the resource index associated with the measurement result as the resource index indicated by the first information.

[0230] For example, in the example of Table 7 above, the third information includes {RSRP#0, RSRP#1, RSRP#2, RSRP#3}. The third information also includes {CSIRS resource#0, CSIRS resource#1, CSIRS resource#2, CSIRS resource#3}. For example, RSRP#0 corresponds to CSIRS resource#0; RSRP#1 corresponds to CSIRS resource#0 and CSIRS resource#1; RSRP#2 corresponds to CSIRS resource#0, CSIRS resource#1 and CSIRS resource#2; RSRP#3 corresponds to CSIRS resource#0, CSIRS resource#1, CSIRS resource#2 and CSIRS resource#3. The number of resource indexes associated with any two measurement results is different.

[0231] The following table 15 is used to illustrate the content of the first information in a tabular form. Taking the second row of Table 15 as an example, the value of the information indicating the resource quantity K1 is 1, and the terminal device can determine that {1} indicates that the resource index associated with the RSRP (i.e., RSRP#0) whose corresponding resource quantity is 1 in the third information is CSIRS resource #0. The network device uses the spatial relationship (or transmit beam) corresponding to {CSIRS resource #0} to send a downlink signal, and the terminal device selects the spatial relationship (or transmit beam) of the uplink signal with reference to the spatial relationship (or receive beam) corresponding to {CSIRS resource #0}. For related content, please refer to the relevant description of the previous Table 12, which will not be repeated here.

[0232] Similarly, in the second row of Table 15, the information used to indicate the resource quantity K1 takes a value of 2. The terminal device can determine the resource index associated with the RSRP (i.e., RSRP#1) whose corresponding resource quantity is 2 in the third information indicated by {2}, i.e., CSIRS resource #0 and CSIRS resource #1.

[0233] Similarly, in the third row of Table 15, the value of the information indicating the resource quantity K1 is 3, and the terminal device can determine the resource index associated with the RSRP (i.e., RSRP#2) corresponding to the resource quantity 3 in the third information indicated by {3}, i.e., CSIRS resource #0, CSIRS resource #1, and CSIRS resource #2. The contents of other rows are similar and will not be repeated here.

[0234] Table 15: Example of information indicating indexes of multiple resources in the first information based on the example of Table 7

[0235]

[0236] The above example is an example combined with the above Table 7. This implementation can also be combined with the example provided in the above Table 8, and the relevant content is similar to it and will not be repeated.

[0237] In the above solution, since the number of resource indexes associated with any two measurement results among the multiple measurement results reported by the terminal device is different, when the network device indicates the resource index to the terminal device through the resource quantity K1, the terminal device can determine one or more resource indexes associated with the resource quantity K1. This solution can save resource overhead caused by indicating resources.

[0238] In implementation C2.2, the information indicating the indexes of the plurality of resources includes information indicating the measurement result index K2.

[0239] The measurement result index can also be replaced by other names, such as beam management reporting index.

[0240] The measurement result indicated by the measurement result index K2 belongs to at least one measurement result, and the measurement result index K2 is associated with multiple resources. The index definition rule of the measurement result is relatively flexible. In one possible implementation, the index of the measurement result can be the order of the measurement result in the third information, such as the measurement result index K2 is the K2th measurement result of at least one measurement result included in the third information. In the embodiment of the present application, K2 is an integer greater than 1, and K2 may also be equal to 1. In the embodiment of the present application, a measurement result in the third information may be associated with one or more resource indexes. The number of resources associated with any two measurement results in the third information may be the same or different.

[0241] In a possible implementation manner, the number of resources associated with any two measurement results in at least one measurement result is the same, and the number of resources associated with the measurement results in the two measurement results is multiple. For this example, refer to the relevant content of the aforementioned Table 9.

[0242] For example, in the example of Table 9 above, the third information includes {CSIRS resource #0, CSIRS resource #1, CSIRS resource #2, CSIRS resource #3, CSIRS resource #4, CSIRS resource #5, CSIRS resource #6, CSIRS resource #7}. The third information also includes {RSRP #0, RSRP #1, RSRP #2, RSRP #3}.

[0243] The content of the first information is exemplified in a tabular form through Table 16. Taking the second row of Table 16 as an example, the value of the information indicating the measurement result index K2 is 1, and the terminal device can determine that the resource index indicated by the measurement result index K2 is the resource index associated with the first RSRP (i.e., RSRP#0) in the third information, i.e., {CSIRS resource#0, CSIRS resource#1}. The value of the information indicating the measurement result index K2 is 2, and the terminal device can determine that the resource index indicated by the measurement result index K2 is the resource index associated with the second RSRP (i.e., RSRP#1) in the third information, i.e., {CSIRS resource#2, CSIRS resource#3}, and so on, which will not be repeated.

[0244] Table 16: Example of information indicating indexes of multiple resources in the first information based on the example of Table 9

[0245]

[0246] The above example is an example combined with the above Table 9. This implementation can also be combined with the examples provided in the above Table 6, Table 7, Table 8, Table 10, Table 11 or Table 12, and the relevant contents are similar and will not be repeated.

[0247] In another possible implementation manner, the numbers of resources in two resource groups associated with any two measurement results in the third information may be the same or different, and the two resource groups may have no intersection or have an intersection.

[0248] In a possible implementation, any two measurement results in the third information are associated with the same number of resources. For example, at least one measurement result is associated with M1 resources configured by the resource configuration information, where M1 is an integer greater than 1 (the M1 resources may be all or part of the resources configured by the resource configuration information). Each measurement result in at least one measurement result is associated with a resource group, and a resource group includes K0 resources among the M1 resources, where K0 is an integer greater than 1. For example, M1 resources correspond to multiple resource groups, and the multiple resource groups include resource groups formed in the form of resource combinations obtained by selecting K0 resources from the M1 resources. For example, the resource groups corresponding to the measurement results in the third information are all combinations of M1 resources. For this example, see the relevant content of the aforementioned Table 10.

[0249] For example, in the example of Table 10, the third information includes {CSIRS resource #0, CSIRS resource #1, CSIRS resource #2, CSIRS resource #3}. The third information also includes {RSRP #0, RSRP #1, RSRP #2, RSRP #3, RSRP #4, RSRP #5}.

[0250] The following table 17 is used to illustrate the content in the first information in a tabular form. Taking the second row of Table 17 as an example, the value of the information indicating the measurement result index K2 is 1, and the terminal device can determine that the resource index indicated by the measurement result index K2 is the resource index corresponding to the resource group associated with the first RSRP (i.e., RSRP#0) in the third information, i.e., {CSIRS resource #0, CSIRS resource #1}. The value of the information indicating the measurement result index K2 is 2, and the terminal device can determine that the resource index indicated by the measurement result index K2 is the resource index corresponding to the resource group associated with the second RSRP (i.e., RSRP#1) in the third information, i.e., {CSIRS resource #0, CSIRS resource #2}. The contents of other rows are similar and will not be repeated.

[0251] Table 17: Example of information indicating indexes of multiple resources in the first information based on the example of Table 10

[0252]

[0253] The above examples are examples combined with the above Table 10. This implementation can also be combined with the examples provided in the above Table 6, Table 7, Table 8, Table 9, Table 11 or Table 12, and the relevant contents are similar and will not be repeated.

[0254] In the above solution, since the terminal device reports one or more measurement results, the measurement result index K2 can be associated with the resource index, so the terminal device can determine the resource index according to the measurement result index K2, thereby saving resource overhead caused by indicating resources.

[0255] In implementation C2.3, the information indicating the indexes of the plurality of resources includes information indicating the resource group index K3.

[0256] The resource group index can also be replaced with other names, such as beam combination index.

[0257] Resource group index K3 can be regarded as an index of a resource group, and a resource group can include one or more resources. The resource index associated with resource group index K3 is the index of at least two resources included in the resource group corresponding to resource group index K3. In a possible implementation, in implementation C2.3, at least one measurement result included in the third information is multiple measurement results. The resource group corresponding to resource group index K3 includes resources associated with multiple measurement results in at least one measurement result.

[0258] In a possible implementation, one measurement result of at least one measurement result in the third information is associated with a resource or multiple resources in the third information. There may be a certain association relationship between the index of the resource group indicated by the network device and the combination of multiple measurement results reported by the terminal device (the association relationship may be predefined, pre-negotiated, or indicated by the network device). The resource indicated by the index of a resource group may be: the index of the resource corresponding to the combination of multiple measurement results corresponding to the resource group index.

[0259] In another possible implementation, one of at least one measurement result in the third information is associated with a resource in the third information. For example, there is a one-to-one correspondence between multiple resources and multiple measurement results in the third information. There may be a certain correlation between the index of the resource group indicated by the network device and the combination of multiple resources reported by the terminal device (the correlation may be predefined, pre-negotiated, or indicated by the network device). The resource indicated by the index of a resource group may be: the index of the resource corresponding to the multiple resource groups corresponding to the resource group index.

[0260] For example, the third information includes multiple measurement results and multiple resources, and the multiple measurement results and the multiple resources can correspond one to one. In order to reduce signaling overhead, the network device and the terminal device can agree on the index of the resource group, so that the network device can indicate the resource group index K3 to the terminal device, and then the terminal device can determine the resource group corresponding to the resource group index K3 according to the correspondence between the pre-agreed resource group index and the resource group, and then obtain the index of the resource included in the resource group.

[0261] For example, in the example of Table 6 above, the third information includes {CSIRS resource #0, CSIRS resource #1, CSIRS resource #2}. The third information also includes {RSRP #0, RSRP #1, RSRP #2}.

[0262] The following table 18 is used to illustrate the content in the first information in a tabular form. Taking the second row of Table 18 as an example, the value of the information indicating the resource group index K3 is 0. The terminal device can determine, based on the pre-agreed correspondence between the resource group index and the resource group, that the resource index indicated by the resource group index K3 is a resource group consisting of the first resource and the second resource (or the resource associated with the first measurement result and the second measurement result) in the third information, and the index of the resources included in the resource group is {CSIRS resource #0, CSIRS resource #1}. Similarly, the value of the information indicating the resource group index K3 is 1. The terminal device can determine that the resource index indicated by the resource group index K3 is a resource group consisting of the first resource and the third resource (or the resource associated with the first measurement result and the third measurement result) in the third information, and the index of the resources included in the resource group is {CSIRS resource #0, CSIRS resource #2}. The value of the information used to indicate the resource group index K3 is 2. The terminal device can determine that the resource index indicated by the resource group index K3 is a resource group consisting of the second resource and the third resource in the third information (or the resource associated with the second measurement result and the third measurement result). The index of the resources included in the resource group is {CSIRS resource #1, CSIRS resource #2}.

[0263] In the embodiment of the present application, the correspondence between the resource group index and the resource group can be preset, pre-negotiated, or indicated by the network device. In a possible implementation, a correspondence rule between the resource group index and the resource group can be agreed in advance, and the terminal device and the network device determine the correspondence between the resource group index and the resource group according to the rule. For relevant examples, please refer to the above content and will not be repeated here.

[0264] Table 18: Example of information indicating indexes of multiple resources in the first information based on the example in Table 6

[0265]

[0266]

[0267] The above examples are examples combined with the above Table 6. This implementation can also be combined with the examples provided in the above Table 6, Table 7, Table 8, Table 9, Table 10, Table 11 or Table 12, and the relevant contents are similar and will not be repeated.

[0268] In the above solution, since the terminal device reports one or more measurement results, the resource group index K3 can be associated with the resource index, so the terminal device can determine the resource index according to the resource group index K3, thereby saving resource overhead caused by indicating resources.

[0269] In implementation C2, the information for indicating the index of multiple resources in the first information in the embodiment of the present application can be associated with the antenna port of the terminal device. In this way, the terminal device can assist the terminal device in determining the selection of the downlink receiving antenna port and / or uplink transmitting antenna port of the terminal device according to the resource indicated by the information for indicating the index of multiple resources. For related content, please refer to the related examples involved in the aforementioned Tables 13 and 14, which will not be repeated here.

[0270] Step 205: The terminal device transmits a first signal.

[0271] In step 205, the terminal device may transmit a first signal to the network device. The first signal may be a downlink signal sent by the network device to the terminal device, or an uplink signal sent by the terminal device to the network device.

[0272] In the embodiment of the present application, the terminal device or the network device may schedule the transmission of the first signal at the MAC layer, for example, the transmission of the first signal scheduled by the network device may be performed by the DU of the network device. The first signal may include one or more of PUCCH, PUSCH, CSIRS, PDSCH, physical downlink control channel (PDCCH), or SRS.

[0273] The spatial relationship of the first signal is associated with the spatial relationship of the plurality of resources indicated by the first information.

[0274] The network device selects one or more resources as reference signals associated with the TCI-state or spatial relationship and configures them to the terminal device to guide the terminal device to select a receiving beam for downlink transmission or a transmitting beam for uplink transmission.

[0275] For example, the network device sends a DCI signaling to the terminal device, which includes a Transmission Configuration Indicator (TCI) field. The TCI field is used to indicate a TCI-state. The TCI-state is used for downlink or uplink transmission. The TCI-state includes information in the above-mentioned first information for indicating the indexes of multiple resources. For downlink transmission using the TCI-state, the terminal device can use the receiving beam corresponding to the resource index for reception. The receiving beam corresponding to the resource index is known in advance by the terminal device, for example, by measuring the resource corresponding to the resource index. In this way, the network device can indicate the correct receiving beam for the terminal device.

[0276] Since the network device configures resources for the terminal device through resource configuration information, the terminal device can measure the reference signal on the resources configured by the network device according to the resource configuration information. Since the terminal device sends the third information, the network device can select resources with better channel quality based on the measurement results to improve subsequent communication quality.

[0277] Through the embodiments provided in the present application, multi-beam joint measurement and reporting of terminal devices can be implemented, and the network device can configure QCL information associated with the multi-beam reference signal for the terminal device to guide the terminal device to select a receiving beam based on downlink multi-beam transmission or a transmitting beam based on uplink multi-beam reception, thereby improving the signal transmission rate.

[0278] It is understandable that in order to implement the functions in the above embodiments, the first device, the second device and the positioning management device may include hardware structures and / or software modules corresponding to the execution of each function. Those skilled in the art should easily realize that, in combination with the units and method steps of each example described in the embodiments disclosed in this application, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in the form of hardware or computer software driving hardware depends on the specific application scenario and design constraints of the technical solution.

[0279] Figure 3 and Figure 4 The following is a schematic diagram of the structure of possible communication devices provided in the embodiments of the present application. These communication devices can be used to implement the functions of the terminal or base station in the above method embodiments, and thus can also achieve the beneficial effects of the above method embodiments. In the embodiments of the present application, the communication device can be as follows: Figure 1 The terminal device shown may also be Figure 1 The network device (such as a RAN node) shown may also be applied to Figure 1 The chip system of the terminal device or network device shown.

[0280] like Figure 3 As shown, the communication device 1300 includes a processing unit 1310 and a transceiver unit 1320. The communication device 1300 is used to implement the above Figure 2 The functions of the terminal device or the network device in the method embodiment shown in FIG. The transceiver unit 1320 may also be called a communication unit. The transceiver unit 1320 may include a sending unit and a receiving unit.

[0281] When the communication device 1300 is used to implement Figure 2When the functions of the terminal device in the method embodiment shown are performed, the processing unit 1301 can perform the above step 202, and the transceiver unit 1320 can perform the above steps 201, 203, 204 and 205. In one possible implementation, the receiving unit can be used to receive the first information, and the sending unit or the receiving unit can also be used to transmit the first signal. In another possible implementation, the receiving unit can also be used to receive the second information, and the sending unit can also be used to send the third information.

[0282] When the communication device 1300 is used to implement Figure 2 When the function of the network device in the method embodiment shown is performed, the transceiver unit 1320 can perform the above steps 201, 203, 204 and 205. In one possible implementation, the sending unit can also be used to send the first information, and the sending unit or the receiving unit can also be used to transmit the first signal. In another possible implementation, the sending unit can be used to send the second information, and the receiving unit can be used to receive the third information.

[0283] For more detailed description of the processing unit 1310 and the transceiver unit 1320, please refer to Figure 2 The method embodiment shown is described in detail.

[0284] like Figure 4 As shown, the communication device 1400 includes a processor 1410 and an interface circuit 1420. The processor 1410 and the interface circuit 1420 are coupled to each other. It can be understood that the interface circuit 1420 can be a transceiver or an input-output interface. The input-output interface is used to input and / or output information, and the output can be understood as sending, and the input can be understood as receiving. Optionally, the communication device 1400 may also include a memory 1430 for storing instructions executed by the processor 1410 or storing input data required by the processor 1410 to execute instructions or storing data generated after the processor 1410 executes instructions.

[0285] When the communication device 1400 is used to implement Figure 3 When the method is shown, the processor 1410 is used to implement the function of the above-mentioned processing unit 1310, and the interface circuit 1420 is used to implement the function of the above-mentioned transceiver unit 1320.

[0286] When the above-mentioned communication device is a chip applied to a terminal, the terminal chip implements the functions of the terminal device in the above-mentioned method embodiment. The terminal chip receives information from the base station, which can be understood as the information is first received by other modules in the terminal (such as a radio frequency module or an antenna), and then sent to the terminal chip by these modules. The terminal chip sends information to the base station, which can be understood as the information is first sent to other modules in the terminal (such as a radio frequency module or an antenna), and then sent to the base station by these modules.

[0287] When the above-mentioned communication device is a chip applied to a base station, the base station chip implements the function of the network device in the above-mentioned method embodiment. The base station chip receives information from the terminal, which can be understood as the information is first received by other modules in the base station (such as a radio frequency module or an antenna), and then sent to the base station chip by these modules. The base station chip sends information to the terminal, which can be understood as the information is sent to other modules in the base station (such as a radio frequency module or an antenna), and then sent to the terminal by these modules.

[0288] In the present application, when entity A sends information to entity B, it can be that A sends it directly to B, or that A sends it to B indirectly through other entities. Similarly, when entity B receives information from entity A, it can be that entity B directly receives the information sent by entity A, or that entity B indirectly receives the information sent by entity A through other entities. Entities A and B here can be RAN nodes or terminals, or modules inside the RAN nodes or terminals. The sending and receiving of information can be information interaction between a RAN node and a terminal, for example, information interaction between a base station and a terminal; the sending and receiving of information can also be information interaction between two RAN nodes, for example, information interaction between a CU and a DU; the sending and receiving of information can also be information interaction between different modules inside a device, for example, information interaction between a terminal chip and other modules of the terminal, or information interaction between a base station chip and other modules in the base station.

[0289] It is understandable that the processor in the embodiments of the present application may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field programmable gate arrays (FPGA) or other programmable logic devices, transistor logic devices, hardware components or any combination thereof. The general-purpose processor may be a microprocessor or any conventional processor.

[0290] The method steps in the embodiments of the present application can be implemented in hardware or in software instructions that can be executed by a processor. The software instructions can be composed of corresponding software modules, and the software modules can be stored in random access memory, flash memory, read-only memory, programmable read-only memory, erasable programmable read-only memory, electrically erasable programmable read-only memory, register, hard disk, mobile hard disk, compact disc read-only memory (CD-ROM) or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor so that the processor can read information from the storage medium and write information to the storage medium. The storage medium can also be a component of the processor. The processor and the storage medium can be located in an ASIC. In addition, the ASIC can be located in a base station or a terminal. The processor and the storage medium can also be present in a base station or a terminal as discrete components.

[0291] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer programs or instructions. When a computer program or instruction is loaded and executed on a computer, the process or function of the embodiment of the present application is executed in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, a network device, a user device or other programmable device. The computer program or instruction can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer program or instruction can be transmitted from one website site, computer, server or data center to another website site, computer, server or data center by wired or wireless means. The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server, data center, etc. that integrates one or more available media. The available medium can be a magnetic medium, such as a floppy disk, a hard disk, or a tape; it can also be an optical medium, such as a digital video disc; it can also be a semiconductor medium, such as a solid-state hard disk. The computer-readable storage medium may be a volatile or nonvolatile storage medium, or may include both volatile and nonvolatile types of storage media.

[0292] In the various embodiments of the present application, unless otherwise specified or provided for in any logical conflict, the terms and / or descriptions between the different embodiments are consistent and may be referenced to each other, and the technical features in the different embodiments may be combined to form new embodiments according to their inherent logical relationships.

[0293] In the present application, "at least one" means one or more, and "more than one" means two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone, where A and B can be singular or plural. In the text description of the present application, the character " / " generally indicates that the previous and next associated objects are in an "or" relationship; in the formula of the present application, the character " / " indicates that the previous and next associated objects are in a "division" relationship. "Including at least one of A, B and C" can mean: including A; including B; including C; including A and B; including A and C; including B and C; including A, B and C.

[0294] It is understood that the various numbers involved in the embodiments of the present application (such as the digital numbers "first" and "second", and the letter numbers "implementation method A1", "implementation method B1", "implementation method C1", etc.) are only distinguished for the convenience of description and are not used to limit the scope of the embodiments of the present application. The size of the sequence number of the above-mentioned processes does not mean the order of execution, and the execution order of each process should be determined by its function and internal logic.

Claims

1. A communication method, characterized in that: The method is applicable to a terminal device, and the method comprises: receiving first information, the first information comprising information indicating indexes of a plurality of resources; A first signal is transmitted, wherein a spatial relationship of the first signal is associated with a spatial relationship of the plurality of resources.

2. The method according to claim 1, characterized in that Before receiving the first information, the method further includes: receiving second information, the second information comprising resource configuration information, the plurality of resources belonging to resources indicated by the resource configuration information; Send third information, where the third information includes at least one measurement result, where the at least one measurement result is obtained by measuring a reference signal corresponding to the resource indicated by the resource configuration information, and the multiple resources are determined based on the at least one measurement result.

3. A communication method, characterized in that: The method is applicable to a network device, and the method comprises: Sending first information, wherein the first information includes information indicating indexes of a plurality of resources; A first signal is transmitted, wherein a spatial relationship of the first signal is associated with a spatial relationship of the plurality of resources.

4. The method according to claim 3, characterized in that Before sending the first information, the method further includes: Sending second information, where the second information includes resource configuration information, and the multiple resources belong to resources indicated by the resource configuration information; Receive third information, where the third information includes at least one measurement result, where the at least one measurement result is obtained by measuring a reference signal corresponding to the resource indicated by the resource configuration information, and the multiple resources are determined based on the at least one measurement result.

5. The method according to claim 2 or 4, characterized in that The information for indicating the indexes of the plurality of resources includes at least one of the following: Information used to indicate the number of resources K1, where the resource index associated with the number of resources K1 is an index of K1 resources associated with a first measurement result, the first measurement result is a measurement result associated with K1 resources in the at least one measurement result, and K1 is a positive integer; Information used to indicate a measurement result index K2, where the measurement result indicated by the measurement result index K2 belongs to the at least one measurement result, and the measurement result index K2 is associated with the multiple resources; Information used to indicate a resource group index K3, where the resource group corresponding to the resource group index K3 includes the multiple resources; or, An index of the plurality of resources.

6. The method according to claim 5, characterized in that In a case where the information indicating the indexes of the plurality of resources includes the information indicating the number of resources K1, the at least one measurement result includes a plurality of measurement results, and two measurement results in the plurality of measurement results are associated with different numbers of resources.

7. The method according to claim 5, characterized in that In a case where the information used to indicate the indexes of the plurality of resources includes the information used to indicate the measurement result index K2: The at least one measurement result includes multiple measurement results, and two measurement results in the multiple measurement results are associated with the same number of resources.

8. The method according to claim 5, characterized in that In a case where the information used to indicate the indexes of the plurality of resources includes the information used to indicate the measurement result index K2: The at least one measurement result is associated with M1 resources among the resources configured by the resource configuration information, where M1 is an integer greater than 1, and the M1 resources correspond to multiple resource groups. One measurement result among the at least one measurement result is associated with one resource group among the multiple resource groups, and the multiple resource groups include a resource group formed in a resource combination form obtained by selecting K0 resources from the M1 resources, and K0 is an integer greater than 1 and less than M1.

9. The method according to claim 5, characterized in that In the case where the information for indicating the indexes of the plurality of resources includes the information for indicating the resource group index K3: One measurement result in the at least one measurement result is associated with a resource, the at least one measurement result includes multiple measurement results, and there is a corresponding relationship between the resource group index K3 and the multiple resources associated with the multiple measurement results.

10. The method according to any one of claims 2, 4 and 5-9, characterized in that The third information further includes: resource indexes associated with one or more measurement results in the at least one measurement result; A measurement result is associated with one or more resource indexes.

11. The method according to any one of claims 2, 4 and 5-10, characterized in that The at least one measurement result includes a first measurement result and a second measurement result; The first measurement result is obtained by measuring, by the terminal device, a reference signal on a resource indicated by a resource index associated with the first measurement result and received by at least one first antenna port; The second measurement result is obtained by measuring, by the terminal device, a reference signal on a resource indicated by a resource index associated with the second measurement result and received by at least one second antenna port; The at least one first antenna port is different from the at least one second antenna port.

12. A communication device, characterized in that: Comprising modules for executing the method as claimed in any one of claims 1 to 11.

13. A communication device, characterized in that: The method comprises a processor and an interface circuit, wherein the interface circuit is used to receive signals from other communication devices and transmit them to the processor or send signals from the processor to other communication devices, and the processor is used to implement the method as described in any one of claims 1 to 11 through a logic circuit or by executing code instructions.

14. A communication device, characterized in that: The method comprises a processor, wherein the processor is used to implement the method according to any one of claims 1 to 11 through a logic circuit or by executing a code instruction.

15. A computer-readable storage medium, characterized in that: The storage medium stores a computer program or an instruction, and when the computer program or the instruction is executed by the communication device, the method according to any one of claims 1 to 11 is implemented.

Images