Communication method, communication apparatus, and computer-readable storage medium

Abstract

The present application provides a communication method, a communication apparatus, and a computer-readable storage medium. The method comprises: when a trigger condition is met, a terminal device sends a channel state information (CSI) report to a network device, wherein the trigger condition comprises that a second measurement result is superior to a first measurement result; the first measurement result is used for indicating a measurement result of a first reference signal, the second measurement result is used for indicating a measurement result of a second reference signal, the first reference signal is comprised in a first measurement resource, and the second reference signal is comprised in a second measurement resource; a cell corresponding to a reference signal in the first measurement resource comprises a serving cell; a cell corresponding to a reference signal in the second measurement resource comprises a serving cell and / or a non-serving cell; and the CSI report is at least used for indicating the second measurement result. Thus, by feeding back a CSI report on the basis of an event, the overhead of a terminal device measuring a pilot and the delay of feeding back a report can be reduced.

Description

Communication method, communication apparatus, and computer-readable storage medium

[0001] The present application claims priority to the Chinese patent application No. 202411093101.8, filed on August 8, 2024, and entitled "Communication method, communication apparatus, and computer-readable storage medium", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] Embodiments of the present application relate to the field of communication technology, in particular to a communication method, a communication apparatus, and a computer-readable storage medium. BACKGROUND

[0003] In a communication system, a terminal device feeds back a channel state information (CSI) report, also known as a beam report, to a network device according to configuration information from the network side.

[0004] However, the above method results in a large overhead of pilot measurement and a large delay of feedback report for the terminal device. SUMMARY

[0005] Embodiments of the present application provide a communication method, a communication apparatus, and a computer-readable storage medium, which can feed back a CSI report based on an event, thereby reducing the overhead of pilot measurement and the delay of feedback report for the terminal device.

[0006] To achieve the above object, embodiments of the present application adopt the following technical solutions:

[0007] In a first aspect, a communication method is provided, which is applied to a terminal device, and the method comprises:

[0008] When a trigger condition is met, sending a channel state information report to a network device.

[0009] The trigger condition comprises that a second measurement result is better than a first measurement result; the first measurement result is used to indicate a measurement result of a first reference signal, and the second measurement result is used to indicate a measurement result of a second reference signal; the reference signal in the first measurement resource corresponds to a serving cell; the reference signal in the second measurement resource corresponds to the serving cell and / or a non-serving cell; and the channel state information report is used to at least indicate the second measurement result.

[0010] Based on the method provided in the application, when the trigger condition is met, the signal quality of the reference signal in the second measurement resource is better than that of the first reference signal in the first measurement resource, i.e., the signal quality of the second reference signal is better than that of the first reference signal. Based on this, the terminal device can send the CSI report to the network device. In this way, once the trigger event is met, the CSI report can be fed back, thereby reducing the overhead of the terminal device measuring the pilot and the latency of the feedback report.

[0011] In a possible design of the first aspect, the method further includes:

[0012] receiving the first configuration information sent by the network device;

[0013] The first configuration information is used to indicate the transmission power information of the reference signal transmitted by the network device in the second measurement resource and the transmission power information of the reference signal transmitted by the network device in the first measurement resource.

[0014] In a possible design of the first aspect, the method further includes:

[0015] receiving the first indication information sent by the network device;

[0016] The first indication information is used to indicate the third measurement resource; the reference signal in the third measurement resource includes at least one reference signal in the second measurement resource;

[0017] The second reference signal is included in the third measurement resource.

[0018] In a possible design of the first aspect, the method further includes:

[0019] receiving the second configuration information sent by the network device; the second configuration information includes a correspondence relationship between the reference signal in the fourth measurement resource and the reference signal in the second measurement resource; the reference signal in the fourth measurement resource includes at least the first reference signal;

[0020] determining the fifth measurement resource from the second measurement resource according to the correspondence relationship and the first reference signal; the reference signal in the fifth measurement resource includes at least one reference signal in the second measurement resource;

[0021] The second reference signal is included in the fifth measurement resource.

[0022] In a possible design of the first aspect,

[0023] The method further includes:

[0024] receiving the second indication information sent by the network device; the second indication information is used to instruct the terminal device to send the measurement result of the first reference signal;

[0025] The method further includes:

[0026] In a possible design of the first aspect,

[0027] The method further includes:

[0028] The method further includes:

[0029] The method further includes:

[0030] In a possible design of the first aspect, the sending of the channel state information report to the network device includes:

[0031] The method further includes:

[0032] The method further includes:

[0033] The method further includes:

[0034] The method further includes:

[0035] The second aspect provides a communication method, which is applied to a network device, and includes:

[0036] The method further includes:

[0037] The channel state information report is sent by the terminal device when a trigger condition is met; the trigger condition includes that a second measurement result is better than a first measurement result; the first measurement result is used to indicate a measurement result of a first reference signal, and the second measurement result is used to indicate a measurement result of a second reference signal; the first reference signal is contained in first measurement resources, and the second reference signal is contained in second measurement resources; a cell corresponding to a reference signal in the first measurement resources includes a serving cell; a cell corresponding to a reference signal in the second measurement resources includes the serving cell and / or a non-serving cell; and the channel state information report is used to at least indicate the second measurement result.

[0038] In a possible design of the second aspect, the method further includes:

[0039] sending, to the terminal device, first configuration information;

[0040] The first configuration information is used to indicate transmission power information of the reference signal in the second measurement resources and transmission power information of the reference signal in the first measurement resources.

[0041] In a possible design of the second aspect, the method further includes:

[0042] sending, to the terminal device, first indication information;

[0043] The first indication information is used to indicate third measurement resources; the reference signal in the third measurement resources includes at least one reference signal in the second measurement resources.

[0044] The second reference signal is contained in the third measurement resources.

[0045] In a possible design of the second aspect, the method further includes:

[0046] sending, to the terminal device, second configuration information; the second configuration information includes a correspondence relationship between a reference signal in fourth measurement resources and a reference signal in the second measurement resources; the reference signal in the fourth measurement resources includes at least the first reference signal; the terminal device determines fifth measurement resources from the second measurement resources according to the correspondence relationship and the first reference signal; the reference signal in the fifth measurement resources includes at least one reference signal in the second measurement resources; and the second reference signal is contained in the fifth measurement resources.

[0047] In a possible design of the second aspect,

[0048] The method further includes:

[0049] sending, to the terminal device, second indication information; the second indication information is used to instruct the terminal device to send a measurement result of the first reference signal.

[0050] The method further includes:

[0051] In a possible design of the second aspect,

[0052] The method further includes:

[0053] The method further includes:

[0054] The method further includes:

[0055] The communication method provided in the second aspect and the possible designs of the second aspect has the beneficial effects of the communication method provided in the first aspect and the possible designs of the first aspect, which will not be repeated here.

[0056] In any of the first aspect to the second aspect and any of the possible designs of the aspect, the triggering condition includes that the second measurement result is better than the first measurement result, including that the second measurement result is greater than the first measurement result, and a difference between the second measurement result and the first measurement result is greater than a set value.

[0057] In any of the first aspect to the second aspect and any of the possible designs of the aspect, the set value is related to transmission power information of the second reference signal, transmission power information of the first reference signal, and a threshold value.

[0058] Alternatively, the first measurement result is a result of scaling an actual measurement result of the first reference signal according to the transmission power information of the first reference signal; the second measurement result is a result of scaling an actual measurement result of the second reference signal according to the transmission power information of the second reference signal; and the set value is the threshold value.

[0059] In any of the first aspect to the second aspect and any of the possible designs of the aspect, the threshold value is configured by the network device; or the threshold value is predefined.

[0060] In any of the first aspect to the second aspect and any of the possible designs of the aspect, the second measurement resource includes reference signals of multiple cells, the threshold values corresponding to the reference signals in a same cell are the same, and the threshold values corresponding to the reference signals in different cells are different.

[0061] In any of the first aspect to the second aspect and any possible design thereof, when the cell corresponding to the reference signal in the first measurement resource is a serving cell, the threshold is a first value; when the cell corresponding to the reference signal in the first measurement resource is a non-serving cell, the threshold is a second value.

[0062] In any of the first aspect to the second aspect and any possible design thereof, the channel state information report at least includes the second measurement result and an identity of the second reference signal corresponding to the second measurement result.

[0063] In any of the first aspect to the second aspect and any possible design thereof, when the channel state information report includes multiple measurement results, the second measurement result is represented by an absolute measurement value, and the remaining measurement results are represented by differential measurement values, the differential measurement value being a difference between the measurement result of the reference signal corresponding to the remaining measurement result and the second measurement result.

[0064] In any of the first aspect to the second aspect and any possible design thereof, in the channel state information report, the measurement result of the reference signal belonging to the same cell as the second reference signal has a higher sorting priority than the measurement result of the reference signal of other cells.

[0065] In any of the first aspect to the second aspect and any possible design thereof, the channel state information report further includes the first measurement result.

[0066] In any of the first aspect to the second aspect and any possible design thereof, in the channel state information report, the measurement result of the reference signal belonging to the same cell as the first reference signal has a lower sorting priority than the measurement result of the reference signal of other cells.

[0067] A third aspect provides a communication method, applied to a terminal device, the method comprising:

[0068] sending, to a network device, a channel state information report, the channel state information report including a second measurement result of a second reference signal and a third measurement result of a third reference signal;

[0069] the second measurement result has a higher sorting priority than the third measurement result;

[0070] the second reference signal satisfies a triggering condition, and the third reference signal does not satisfy the triggering condition.

[0071] Based on the method provided in the present application, the terminal device can carry the second measurement result of the reference signal satisfying the triggering condition and the measurement result of the reference signal not satisfying the triggering condition in the CSI report, and the sorting priority of the measurement result of the reference signal satisfying the triggering condition is higher than the sorting priority of the measurement result of the reference signal not satisfying the triggering condition, which can improve the reliability of the measurement result of the reference signal satisfying the triggering condition. Therefore, the terminal device can send the CSI report to the network device, so that the network device can preferentially learn the signal quality of the reference signal satisfying the triggering condition, which helps the network device to compare the signal quality of the current service link and the candidate service connection, so that the network device can perform resource allocation, scheduling decision, beam management, handover control and other operations in the cell or between cells, and ensure the communication continuity and communication quality of the terminal device.

[0072] The difference between the first aspect and the third aspect is that: in the first aspect, the focus is on the configuration and triggering of the CSI report. The terminal device initiates the CSI report only when the triggering condition is met. In the third aspect, the focus is on the content and format of the CSI report. The CSI report includes: the second measurement result of the reference signal satisfying the triggering condition, and the measurement result of the reference signal not satisfying the triggering condition, and the sorting priority of the measurement result of the reference signal satisfying the triggering condition is higher than the sorting priority of the measurement result of the reference signal not satisfying the triggering condition.

[0073] In a fourth aspect, a communication method is provided, which is applied to a network device, and the method includes:

[0074] receiving the channel state information report sent by the terminal device, the channel state information report including the second measurement result of the second reference signal and the third measurement result of the third reference signal;

[0075] The sorting priority of the second measurement result is higher than the sorting priority of the third measurement result.

[0076] The second reference signal satisfies the triggering condition, and the third reference signal does not satisfy the triggering condition.

[0077] The communication method provided in the fourth aspect and the possible designs of the fourth aspect has the beneficial effects as described in the third aspect and the possible implementation manners of the third aspect, which will not be repeated here.

[0078] In any one of the third aspect to the fourth aspect and any one of the possible designs of the aspect, the second measurement result is represented by an absolute measurement value, and the third measurement result is represented by a differential measurement value, which is the difference between the third measurement result and the second measurement result.

[0079] In any of the third to fourth aspects and any possible design thereof, in the channel state information report, the measurement result of the reference signal belonging to the same cell as the second reference signal has a higher priority than the measurement result of the reference signal belonging to a different cell than the cell where the second reference signal is located.

[0080] In any of the third to fourth aspects and any possible design thereof, the channel state information report further includes: an identity of the second reference signal, and an identity of the third reference signal.

[0081] In any of the third to fourth aspects and any possible design thereof, the channel state information report further includes: a first measurement result of the first reference signal;

[0082] The second measurement result has a higher priority than the first measurement result.

[0083] The trigger condition is that the first measurement result is greater than the second measurement result.

[0084] In any of the third to fourth aspects and any possible design thereof, the first measurement result has the lowest priority.

[0085] In any of the third to fourth aspects and any possible design thereof, the first measurement result is represented by a differential measurement value, which is a difference between the first measurement result and the second measurement result.

[0086] In any of the third to fourth aspects and any possible design thereof,

[0087] The trigger condition includes that the second measurement result is better than the first measurement result; and the first measurement result is used to indicate the measurement result of the first reference signal.

[0088] In any of the third to fourth aspects and any possible design thereof,

[0089] The first reference signal is a reference signal of a serving cell;

[0090] The second reference signal is a reference signal of a serving cell or a non-serving cell;

[0091] The third reference signal is a reference signal of a serving cell or a non-serving cell.

[0092] In any of the first to fourth aspects and any possible design thereof, the measurement result includes a signal to interference plus noise ratio and / or a reference signal received power.

[0093] In any of the above first to fourth aspects and any possible design of the aspect, the channel state information report is carried in a physical uplink control channel or a physical uplink shared channel.

[0094] In a fifth aspect, a communication apparatus is provided, which is applied to a communication device, and the apparatus includes: a module for performing the method in the above first aspect and any possible design of the aspect; and / or a module for performing the method in the above third aspect and any possible design of the aspect.

[0095] In a sixth aspect, a communication apparatus is provided, which is applied to a network device, and the apparatus includes: a module for performing the method in the above second aspect and any possible design of the aspect; and / or a module for performing the method in the above fourth aspect and any possible design of the aspect.

[0096] In a seventh aspect, a communication system is provided, which includes: a communication apparatus for performing the method in the above first aspect and any possible design of the aspect, and a communication apparatus for performing the method in the above second aspect and any possible design of the aspect; and / or a communication apparatus for performing the method in the above third aspect and any possible design of the aspect, and a communication apparatus for performing the method in the above fourth aspect and any possible design of the aspect.

[0097] In an eighth aspect, a communication apparatus is provided, which includes: a transceiver, a processor and a memory. The memory stores computer programs or instructions, the processor is configured to control the transceiver to transceive signals, and the processor is configured to invoke and run the computer programs or instructions stored in the memory, so that the processor implements the method in any of the above aspects and any possible design of the aspect.

[0098] In a ninth aspect, a communication apparatus is provided, which includes: a processor, and the processor is configured to invoke computer programs or instructions in a memory, so that the communication apparatus implements the method in any of the above aspects and any possible design of the aspect.

[0099] Optionally, the communication apparatus further includes: a memory for storing program instructions. The processor is coupled to the memory through an interface.

[0100] In a tenth aspect, a chip apparatus is provided, which includes a processor, and the processor is configured to invoke computer programs or instructions in a memory, so that the processor implements the method in any of the above aspects and any possible design of the aspect.

[0101] Optionally, the processor is coupled to the memory through an interface.

[0102] In an eleventh aspect, a chip is provided, comprising: an interface circuit and a logic circuit, the interface circuit is configured to receive a signal from another chip outside the chip and transmit the signal to the logic circuit, or send a signal from the logic circuit to another chip outside the chip, and the logic circuit is configured to implement the method in any one of the preceding aspects and possible designs thereof.

[0103] In a twelfth aspect, a computer readable storage medium is provided, which stores a computer program or instructions, and the computer program or instructions are configured to execute the method in any one of the preceding aspects and possible designs thereof.

[0104] In a thirteenth aspect, a computer program product is provided, which, when running on a computer, causes the computer to execute the method in any one of the preceding aspects and possible designs thereof. BRIEF DESCRIPTION OF DRAWINGS

[0105] FIG. 1 is a schematic diagram of an architecture of a communication system according to an embodiment of the present application;

[0106] FIG. 2 is an interaction flowchart of a communication method according to an embodiment of the present application;

[0107] FIG. 3 is an interaction flowchart of a communication method according to an embodiment of the present application;

[0108] FIG. 4 is an interaction flowchart of a communication method according to an embodiment of the present application;

[0109] FIG. 5 is a schematic diagram of a scenario of a communication method according to an embodiment of the present application;

[0110] FIG. 6 is an interaction flowchart of a communication method according to an embodiment of the present application;

[0111] FIG. 7 is an interaction flowchart of a communication method according to an embodiment of the present application;

[0112] FIG. 8 is a schematic diagram of a counter according to an embodiment of the present application;

[0113] FIG. 9 is an interaction flowchart of a communication method according to an embodiment of the present application;

[0114] FIG. 10 is a schematic diagram of a structure of a communication apparatus according to an embodiment of the present application;

[0115] FIG. 11 is a schematic diagram of a structure of a communication apparatus according to an embodiment of the present application;

[0116] FIG. 12 is a schematic diagram of a structure of a communication apparatus according to an embodiment of the present application;

[0117] FIG. 13 is a structural schematic diagram of a communication apparatus according to an embodiment of the present application;

[0118] FIG. 14 is a structural schematic diagram of a communication apparatus according to an embodiment of the present application;

[0119] FIG. 15 is a hardware structural schematic diagram of a communication apparatus according to an embodiment of the present application. DETAILED DESCRIPTION

[0120] The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all of the embodiments. The terms "first", "second", etc. are used only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second", etc. can explicitly or implicitly include one or more of the features.

[0121] In the embodiments of the present application, the terms "comprising", "containing" or any other variants thereof are intended to cover non-exclusive containing, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or includes elements inherent to such process, method, article or device. Without more limitations, the element defined by the statement "including a" does not exclude the existence of another identical element in the process, method, article or device including the element.

[0122] In the embodiments of the present application, "and / or" is only a description of the association relationship between the associated objects, which means that there can be three relationships, for example, A and / or B can represent the following three cases: A exists alone, A and B exist together, and B exists alone. In addition, the character " / " in this paper generally represents that the front and rear associated objects have an "or" relationship.

[0123] In the description of the present application, it should be explained that, unless otherwise explicitly specified and limited, the terms "providing", "connecting", "connecting" should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; for ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0124] First, the following part of the language in the present application is explained and described, so as to facilitate the understanding of those skilled in the art.

[0125] 1、beam

[0126] A beam is a kind of communication resource. The beam can be a wide beam, or a narrow beam, or other types of beams. The technology for forming a beam can be beamforming technology or other technical means. The beamforming technology can be digital beamforming technology, analog beamforming technology, or hybrid digital / analog beamforming technology. Different beams can be considered as different resources. The same information or different information can be transmitted through different beams. Alternatively, multiple beams with the same or similar communication characteristics can be considered as one beam. One beam can include one or more antenna ports for transmitting data channels, control channels, and sounding signals, etc. For example, a transmit beam can refer to the distribution of signal strength in different spatial directions after a signal is transmitted by an antenna, and a receive beam can refer to the distribution of signal strength in different spatial directions of a wireless signal received by an antenna. It can be understood that the one or more antenna ports forming a beam can also be regarded as an antenna port set.

[0127] When a low frequency band or a medium frequency band is used, a signal can be transmitted omnidirectionally or through a relatively wide angle, and when a high frequency band is used, a large number of antenna arrays composed of antenna arrays can be arranged at the transmitting end and the receiving end due to the small carrier wavelength of the high frequency communication system. The transmitting end transmits a signal with certain beamforming weights, so that the transmitted signal forms a beam with spatial directivity. Meanwhile, the receiving end receives the signal with certain beamforming weights through the antenna array, which can improve the received power of the signal at the receiving end and resist path loss.

[0128] 2. Reference signal (RS)

[0129] According to a long term evolution (LTE) / new radio (NR) protocol, in a physical layer, uplink communication includes transmission of uplink physical channels and uplink signals. The uplink physical channels include a random access channel (PRACH), a physical uplink control channel (PUCCH), a physical uplink shared channel (PUSCH), and the like, and the uplink signals include a sounding reference signal (SRS), a PUCCH de-modulation reference signal (PUCCH-DMRS), a PUSCH de-modulation reference signal (PUSCH-DMRS), a phase noise tracking reference signal (PTRS), an uplink positioning RS, and the like. Downlink communication includes transmission of downlink physical channels and downlink signals.The downlink physical channels include a physical broadcast channel (PBCH), a physical downlink control channel (PDCCH), a physical downlink shared channel (PDSCH), and the like, and the downlink signals include a primary synchronization signal (PSS) / secondary synchronization signal (SSS), a PDCCH de-modulation reference signal (PDCCH-DMRS), a PDSCH de-modulation reference signal (PDSCH-DMRS), a phase noise tracking reference signal (PTRS), a channel status information reference signal (CSI-RS), a cell reference signal (CRS), a time / frequency tracking reference signal (TRS), an LTE / NR positioning signal (positioning RS), and the like. The PSS, the SSS, and the PBCH jointly constitute a synchronization signal block (SSB).

[0130] 3. Measurement resource and reference signal

[0131] The measurement resource can be regarded as a set of reference signals. The measurement resource can include one or more reference signals. The measurement resource can include reference signals in the same cell or reference signals in different cells. One cell can include one or more reference signals. The reference signal can be the uplink signal mentioned above, or the reference signal can be the downlink signal mentioned above.

[0132] 4. Serving cell, non-serving cell, and neighboring cell

[0133] A serving cell refers to a cell currently providing services for a terminal device, i.e., a cell with which the terminal device is communicating, receiving and transmitting data. The signal quality of the serving cell has a direct impact on the communication quality and performance of the terminal device.

[0134] A non-serving cell refers to a cell that is not currently providing services for the terminal device.

[0135] In some examples, the non-serving cell can be another cell, i.e., a neighboring cell, that the terminal device can detect but has not established a connection with, in addition to the serving cell.

[0136] The neighboring cell usually has some overlap with the non-serving cell, and the neighboring cell refers to a cell that is geographically adjacent to the serving cell. The neighboring cell can be a peripheral cell of the serving cell, and the terminal device measures and monitors the signal of the neighboring cell, but the terminal device is not currently communicating, receiving and transmitting data on the neighboring cell.

[0137] The signal quality of the non-serving cell is also important for the network device to decide whether to perform cell switching, so as to ensure that the terminal device is always connected to a cell with good signal quality, thereby providing stable and high-quality communication services.

[0138] 5. Reference signal, serving cell and non-serving cell

[0139] Whether a reference signal comes from the serving cell can be determined in the following ways:

[0140] In a case where the physical cell identity (PCI) associated with the reference signal is the same as the physical cell identity of the current serving cell, and the frequency of the reference signal is the same as the frequency of the cell-defining SSB of the current serving cell, the reference signal comes from the serving cell.

[0141] In a case where the physical cell identity (PCI) associated with the reference signal is different from the physical cell identity of the current serving cell, and / or the frequency of the reference signal is different from the frequency of the cell-defining SSB of the current serving cell, the reference signal does not come from the serving cell.

[0142] The physical cell identity of the current serving cell is determined by the cell-defining SSB.

[0143] The present application provides a communication method. The communication method of the present application can be applied to a communication system, which can include but is not limited to a wireless communication system, such as a narrow band-Internet of things (NB-IoT), a global system for mobile communications (GSM), an enhanced data rate for GSM evolution (EDGE), a wide band code division multiple access (WCDMA), a code division multiple access 2000 (CDMA2000), a time division-synchronization code division multiple access (TD-SCDMA), an LTE system, a 5th generation (5G) system, a 6th generation (6G) system, and a future system, etc.

[0144] The communication system can be applied to scenarios including but not limited to ground cellular communication, non-terrestrial network (NTN), satellite communication, high altitude platform station (HAPS) communication, vehicle-to-everything (V2X) communication, integrated access and backhaul (IAB) communication, reconfigurable intelligent surface (RIS) communication, etc.

[0145] FIG. 1 is a schematic diagram of an architecture of a communication system according to an embodiment of the present application. As shown in FIG. 1, the communication system of the present application can include a network device 20 and a terminal device 10, and the network device 20 and the terminal device 10 can communicate with each other.

[0146] The network device 20 can include one or more network devices 20. The network device 20 is a device in a wireless network. The network device 20 can be a base station, or an access point, or an access network device, or can refer to a device in an access network that communicates with wireless terminals over the air interface (air interface) through one or more sectors. The network device 20 can be used to convert the received air frames and Internet protocol (IP) packets to each other, as a router between the wireless terminal and the rest of the access network, which can include an IP network. The network device 20 can also coordinate the management of the properties of the air interface. For example, the network device 20 can be a satellite, a drone, and can also be an evolved node B (eNB or eNodeB) in LTE, a wireless controller in a cloud radio access network (CRAN) scenario, or a wearable device or a vehicle-mounted device, a vehicle-to-everything (V2X) device, a device-to-device (D2D) device, and a terminal or relay station or access point that performs the base station function in machine-to-machine (M2M) communication, or a base station in a 5G network, such as gNB, or a base station in a future 6G network, or a network device in a future evolved public land mobile network (PLMN) network, which is not limited here.

[0147] The network device 20 can be a RAN node that accesses the user equipment 20 to the wireless network. At present, some examples of RAN nodes are: gNB, transmission reception point (TRP), evolved Node B (eNB), home base station (for example, home evolved NodeB, or home Node B, HNB), base band unit (BBU), or wireless fidelity (Wifi) access point (AP), IAB, etc.

[0148] In one network structure, the network device 20 can include a centralized unit (CU) node, or a distributed unit (DU) node, or a RAN device including a CU node and a DU node, or a RAN device including a control plane CU node (CU-CP node) and a user plane CU node (CU-UP node) and a DU node.

[0149] The CU and the DU can be understood as a division of the RAN node from a logical function perspective. The CU and the DU are connected through an F1 interface; the CU can represent a gNB, and is connected with a core network through an NG interface. The CU and the DU can be physically separated or deployed together, which is not limited in the present application. One CU can be connected with one DU, or multiple DUs can share one CU, which can save cost and facilitate network expansion. The CU and the DU can be split according to a protocol stack, and one possible way is to deploy radio resource control (RRC), service data adaptation protocol (SDAP), and packet data convergence protocol (PDCP) layers in the CU, and to deploy the remaining radio link control (RLC) layer, media access control (MAC) layer, and physical layer in the DU. The protocol stack splitting manner is not completely limited in the present application, and other splitting manners can also be used.

[0150] The terminal device 10 can include one or more. The terminal device 10 is a device with wireless transceiver function. The terminal device 10 can be a wireless terminal, and can also be a wired terminal. The wireless terminal can refer to a device that provides voice and / or other service data connectivity to users, a handheld device with wireless connection function, or other processing devices connected to a wireless modem. The wireless terminal can communicate with one or more core networks through a radio access network (RAN). The wireless terminal can be a mobile terminal, such as a mobile phone (or called "cellular" phone) and a computer with mobile terminal, for example, can be a portable, pocket, handheld, built-in or vehicle-mounted mobile device, which exchanges voice and / or data with a radio access network. For example, personal communication service (PCS) phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDAs), unmanned aerial vehicles, wearable devices, terminals in Internet of vehicles, and the like. The wireless terminal can also be referred to as a system, a subscriber unit, a subscriber station, a mobile station (MS), a mobile, a remote station, a remote terminal, an access terminal, a user terminal, a user agent, a user device, a user equipment, a terminal unit, a terminal station, a remote station, a mobile device, a terminal, a wireless communication device, a terminal agent, or a terminal apparatus, without limitation.

[0151] The access terminal can be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), a handheld device having wireless communication function, a computing device, or other processing device connected to a wireless modem, an in-vehicle device, a wearable device, a terminal device in a 5G network, a terminal device in a 6G network, or a terminal device in a future network, or a terminal device in a future evolved public land mobile network (PLMN) network, etc.

[0152] In addition, the terminal device 10 can use a mobile operating system such as an Android system, a Linux system, a Windows system, an iOS system, etc., which is not limited in the present application.

[0153] The network device 20 and the terminal device 10, and the terminal device 10 and the terminal device 10 can communicate through a licensed spectrum, or through an unlicensed spectrum, or through both the licensed spectrum and the unlicensed spectrum. The network device 20 and the terminal device 10, and the terminal device 10 and the terminal device 10 can communicate through a spectrum below 6 gigahertz (GHz), or through a spectrum above 6 GHz, or through both the spectrum below 6 GHz and the spectrum above 6 GHz. The spectrum used between the network device 20 and the terminal device 10 is not limited in the present application.

[0154] In mobile communication, when the network device 20 is a sending end and the terminal device 10 is a receiving end, as shown in FIG. 1, the network device 20 can use multiple beams with different directions (Tx beams) to transmit CSI-RS to different directions. Correspondingly, the terminal device 10 can use multiple beams with different directions (Rx beams) to receive the CSI-RS transmitted from the network device 20.

[0155] In addition, the network device 20 can also use a beam with a direction to transmit a wireless signal, and the number and direction of the beam used by the network device 20 are not limited in the present application. Correspondingly, the terminal device 10 can also use a beam with a direction to receive a wireless signal, and the number and direction of the beam used by the terminal device 10 are not limited in the present application. It should be understood that FIG. 1 is only an illustrative example.

[0156] Thus, the terminal device 10 can measure various parameters of the serving cell and the neighboring cells by referring to the reference signals. The reference signals are used by the terminal device 10 to measure the downlink channel state and provide the network device 20 with channel state information. In this way, the terminal device 10 can feed back the CSI report to the network device 20 according to the configuration information of the network side.

[0157] The configuration information of the network side can include, for example, CSI report content and reference signal configuration information. The CSI report content can include, but is not limited to, the type of the CSI report, the number of cells that need to be reported, the number of reference signals that need to be reported for each cell, whether the measurement information of the serving cell needs to be reported, and the like. The reference signal configuration information is the measurement resource configured by the network side, i.e., a resource set of one reference signal. Each reference signal resource in the set is determined by the index of the SSB and the configuration information associated with the index of the SSB. The associated configuration information can include the index of the physical cell and the transmission power of the SSB.

[0158] For the serving cell, the CSI report can help the network device 20 understand the coverage and interference level in the cell, so as to perform resource management, power control, handover decision, and the like, to optimize the communication service quality in the cell.

[0159] For the neighboring cells, the CSI report can help the network device 20 determine whether to perform cell handover, to ensure the communication continuity and service quality of the terminal device 10 during movement.

[0160] However, the above-mentioned method can cause large measurement overhead of the terminal device and large feedback report delay.

[0161] In terms of measurement pilot overhead, the following problems can exist, thereby increasing the measurement pilot overhead and processing difficulty:

[0162] 1. The operation configured by the network side can be too complex or cumbersome, causing the terminal device 10 to need to process a large number of pilot signals.

[0163] 2. The resource allocation configured by the network side can be insufficient or unreasonable, causing the terminal device 10 to need to complete more measurement tasks within limited time and resources.

[0164] In terms of feedback report delay, the following problems can exist, thereby increasing the feedback report delay:

[0165] 1. The report feedback period configured by the network side can be long, causing the terminal device 10 to need to wait for a long time after collecting the CSI report before feeding back.

[0166] 2、Network side configuration of uplink transmission resources may be limited, resulting in terminal device 10 need to wait for available resources to feedback CSI report.

[0167] In view of the above problems, the present application provides a communication method, which can trigger beam report based on event, that is, the terminal device reports the beam report as soon as it detects the event, wherein the reporting time of the beam report depends on the time when the terminal device detects the event. It can be seen that this method can reduce the overhead of measuring pilots and the feedback delay of beam report.

[0168] Wherein, the event is that the terminal device detects that the signal quality of the second measurement resource (or candidate service link) is better than the signal quality of the first measurement resource (or current service link) plus a set value. Wherein, the first measurement resource refers to the reference signal in the serving cell. The second measurement resource refers to the reference signal in the serving cell and / or the reference signal in the non-serving cell, and the reference signal in the second measurement resource can be regarded as a candidate reference signal. The reference signal in the second measurement resource can come from the same cell or different cells.

[0169] In the following, the following embodiments of the present application will take the terminal device 10 and the network device 20 with the structure shown in Figure 1 as an example, combined with the drawings and application scenarios, the communication method provided by the present application is described in detail.

[0170] Please refer to Figure 2, which is an interactive flowchart of a communication method provided by an embodiment of the present application. The method is applied to a terminal device and a network device, wherein the terminal device can be a device in the communication device in Figure 1, and the network device can be the network device in Figure 1 or a device in the network device. In order to simplify the description, taking the method executed by the terminal device and the network device as an example, as shown in Figure 2, the communication method provided by the present application can include:

[0171] S101, the terminal device sends a channel state information report to the network device when the trigger condition is met.

[0172] Correspondingly, the network device receives the channel state information report sent by the terminal device.

[0173] Generally, a cell can transmit one or more reference signals, and the beams transmitting different reference signals can be different to cover different areas. Based on this, the first measurement resource is a set of reference signals currently serving the terminal device. The cells corresponding to the reference signals in the first measurement resource include the serving cell.

[0174] So, the reference signals in the first measurement resource are all from the serving cell. The first reference signal is included in the first measurement resource. The first reference signal can include one or more reference signals. Thus, the first reference signal is from the serving cell. The first measurement result is used to indicate the measurement result of the first reference signal, which can represent the signal quality of the serving cell and the signal quality of the first reference signal in the serving cell.

[0175] The measurement result mentioned in the present application is used to indicate the performance parameter of the reference signal, such as signal strength (received signal strength, RSS), signal quality, signal characteristics, etc. The signal strength is used to indicate the power size of the received reference signal. The signal quality is used to indicate the purity and reliability of the reference signal. The channel characteristics, such as multipath propagation, delay spread, Doppler frequency domain, etc., are used to indicate the dynamic change of the channel.

[0176] In some examples, the measurement result can include signal to interference plus noise ratio (SINR) and / or reference signal receiving power (RSRP).

[0177] It can be seen that the first measurement resource can be a reference signal from the serving cell.

[0178] In some examples, the current service beam currently used by the terminal device is one, which can transmit one reference signal. In this way, the number of reference signals in the first measurement resource can be one.

[0179] In some examples, the terminal device can include multiple panels, which can be served simultaneously. At the same time, multiple beams can serve the terminal device. Multiple beams can transmit multiple reference signals. In this way, the number of reference signals in the first measurement resource can be multiple.

[0180] In addition, when the first measurement resource includes multiple reference signals, a second measurement resource can be configured for each reference signal. In this way, the terminal device can compare the signal quality of each reference signal and the corresponding second measurement resource. Alternatively, the terminal device can select one reference signal from the multiple reference signals to compare the signal quality of the reference signal and the second measurement resource. Of course, the present application includes but is not limited to the foregoing manner.

[0181] The second measurement resource can be regarded as a set of candidate reference signals, and the reference signal in the second measurement resource can be regarded as a candidate reference signal. The cell corresponding to the candidate reference signal can include multiple sources.

[0182] When the cells corresponding to the reference signals in the second measurement resource include the serving cell, the reference signals in the second measurement resource are all from the serving cell. The second reference signals are included in the second measurement resource. The second reference signals can include one or more reference signals. Thus, the second reference signals are from the serving cell. The second measurement result is used to indicate the measurement result of the second reference signals, and can reflect the signal quality of the candidate reference signals in the serving cell, i.e., the signal quality of other beams in the serving cell.

[0183] Thus, the signal quality gap in the cell can be fed back by means of the first measurement result and the second measurement result.

[0184] When the cells corresponding to the reference signals in the second measurement resource include the non-serving cell, the reference signals in the second measurement resource are all from the non-serving cell. Then, the reference signals in the second measurement resource are different from the reference signals in the first measurement resource. The second reference signals are included in the second measurement resource. The second reference signals can include one or more reference signals. Thus, the second reference signals are from the non-serving cell. The second measurement result is used to indicate the measurement result of the second reference signals, and can reflect the signal quality of the non-serving cell.

[0185] Thus, the signal quality gap between cells can be fed back by means of the first measurement result and the second measurement result.

[0186] When the cells corresponding to the reference signals in the second measurement resource include the serving cell and the non-serving cell, for the reference signals in the second measurement resource, a part is from the serving cell and the remaining part is from the non-serving cell. Then, the reference signals from the serving cell in the second measurement resource partially overlap with the reference signals in the first measurement resource. The second reference signals are included in the second measurement resource. The second reference signals can include one or more reference signals. Thus, the second reference signals are from the serving cell and / or the non-serving cell. The second measurement result is used to indicate the measurement result of the second reference signals, and can reflect the signal quality of the serving cell and / or the non-serving cell.

[0187] Thus, the signal quality gap in the cell and / or the signal quality gap between cells can be fed back by means of the first measurement result and the second measurement result.

[0188] Based on the above description, the signal quality of the candidate reference signals can be better than the signal quality of the first reference signals. Therefore, the terminal device can determine whether the triggering condition is met.

[0189] The triggering condition includes that the second measurement result is better than the first measurement result.

[0190] In some examples, in view of the parameter involved in the measurement result of the reference signal, the greater the value, the better the signal quality of the reference signal. Therefore, the trigger condition can be set as: the second measurement result is greater than the first measurement result, and the difference between the second measurement result and the first measurement result is greater than a set value.

[0191] Of course, in some examples, in view of the parameter involved in the measurement result of the reference signal, it can also be that the smaller the value, the better the signal quality of the reference signal. Therefore, the trigger condition can also be set as: the second measurement result is less than the first measurement result, and the difference between the second measurement result and the first measurement result is less than a set value.

[0192] For ease of illustration, this application takes the trigger condition as an example, that is, the second measurement result is greater than the first measurement result, and the difference between the second measurement result and the first measurement result is greater than a set value.

[0193] When the trigger condition is met, there is a candidate reference signal whose signal quality is better than that of the first reference signal, and the signal quality difference between the candidate reference signal and the first reference signal is large.

[0194] When the cell corresponding to the candidate reference signal is the serving cell, in the cell, the signal quality of the candidate reference signal in the serving cell is better than that of the first reference signal in the serving cell. Moreover, the signal quality difference between the first reference signal and the candidate reference signal in the serving cell is large.

[0195] That is, compared with the current serving beam in the serving cell, the signal quality of the candidate using beam in the serving cell is better, and the signal quality difference between the current serving beam and the candidate using beam in the serving cell is large.

[0196] Therefore, with the help of the large difference, the trigger condition can not occur frequently, the feedback overhead of the CSI report can be reduced, and the network device can also control the frequency of the terminal device feeding back the CSI report to a certain extent by configuring the set value.

[0197] When the cell corresponding to the candidate reference signal is a non-serving cell, between the cells, the signal quality of the non-serving cell is better than that of the serving cell. Moreover, the signal quality difference between the serving cell and the non-serving cell is large.

[0198] Therefore, with the help of the large difference, the trigger condition can not occur frequently, the feedback overhead of the CSI report can be reduced, and the network device can also control the frequency of the terminal device feeding back the CSI report to a certain extent by configuring the set value.

[0199] When the cell corresponding to the candidate reference signal comprises a serving cell and a non-serving cell, the content of the implementation manner can refer to the description of the above two cases, and details are not described herein.

[0200] It can be seen that the second measurement resource can be a reference signal from a non-serving cell. Based on the triggering condition, the signal quality of the non-serving cell is better than that of the serving cell, the terminal initiates a beam report to inform the network device of the occurrence of the triggering event.

[0201] Alternatively, the second measurement resource can be a reference signal from a serving cell and a non-serving cell. Based on the triggering condition, the signal quality of the non-serving cell is better than that of the serving cell, and / or the signal quality of the candidate used beam in the serving cell is better than that of the currently used beam in the serving cell, the terminal initiates a beam report to inform the network device of the occurrence of the triggering event.

[0202] Alternatively, the second measurement resource can be a reference signal from a serving cell. Based on the triggering condition, the signal quality of the candidate used beam in the serving cell is better than that of the currently used beam in the serving cell, the terminal initiates a beam report to inform the network device of the occurrence of the triggering event.

[0203] In summary, when the triggering condition is met, the terminal device can support intra-cell and inter-cell beam measurement at the same time, and then the terminal device can send a CSI report to the network device, and the CSI report is at least used to indicate the second measurement result.

[0204] Thus, the network device can optimize the performance of the communication system and guarantee the reliability and efficiency of data transmission by performing resource allocation, scheduling decision, beam management, handover control and the like according to the CSI report.

[0205] For example, the network device decides whether to hand over the terminal device to other cells according to the CSI report, to ensure the continuity and quality of communication.

[0206] In the present application, the specific transmission mode of the CSI report is not limited. In some examples, the channel state information report is carried on a physical uplink control channel (PUCCH) or a physical uplink shared channel (PUSCH).

[0207] When the triggering condition is not met, there is no candidate reference signal as described above.

[0208] In an implementation manner, the signal quality of the first reference signal is better than that of the candidate reference signal.

[0209] When the cell corresponding to the candidate reference signal is the serving cell, the channel quality of the first reference signal in the serving cell is better than that of the candidate reference signal in the serving cell.

[0210] When the cell corresponding to the candidate reference signal is the non-serving cell, the signal quality of the serving cell is better than that of the non-serving cell.

[0211] When the cell corresponding to the candidate reference signal includes the serving cell and the non-serving cell, the implementation manner can refer to the description of the above two cases, and details are not described herein.

[0212] In an implementation manner, the signal quality of the candidate reference signal is better than that of the first reference signal, and the signal quality difference between the candidate reference signal and the first reference signal is small.

[0213] When the cell corresponding to the candidate reference signal is the serving cell, the channel quality of the first reference signal in the serving cell is better than that of the candidate reference signal in the serving cell, and the signal quality difference between the first reference signal and the candidate reference signal in the serving cell is small.

[0214] However, the small difference is caused by measurement error or movement of the terminal device, and cannot be used to determine that the signal quality of the candidate reference signal is better than that of the first reference signal.

[0215] When the cell corresponding to the candidate reference signal is the non-serving cell, the signal quality of the non-serving cell is better than that of the serving cell, and the signal quality difference between the serving cell and the non-serving cell is small.

[0216] However, the small difference is caused by measurement error or movement of the terminal device, and cannot be used to determine that the signal quality of the non-serving cell is better than that of the serving cell.

[0217] In summary, when the trigger condition is not met, the terminal device does not need to feed back the CSI report. Therefore, the terminal device can continue to determine whether the trigger condition is met, and the above process is repeatedly executed.

[0218] The communication method provided in the application can be used to determine that the signal quality of the second reference signal in the second measurement resource is better than that of the first reference signal in the first measurement resource when the trigger condition is met, that is, the signal quality of the second reference signal is better than that of the first reference signal. Based on this, the terminal device can send the CSI report to the network device. In this way, once the trigger event is met, the CSI report can be fed back, thereby reducing the overhead of the terminal device in measuring the pilot and the time delay of the feedback report.

[0219] In addition, in S101, the terminal device initiates the CSI report in a plurality of triggering manners.

[0220] In some possible manners, in the second measurement resource, at least one cell and at least one reference signal in the cell satisfy the triggering condition, and the terminal device initiates the CSI report. That is, in the second measurement resource, as long as one reference signal or the reference signal of one cell satisfies the triggering condition, the terminal device initiates the CSI report.

[0221] In the case where the plurality of reference signals in the second measurement resource satisfy the triggering condition, the plurality of reference signals can be from the serving cell or from the serving cell and the non-serving cell. Thus, the event triggering in the cell and between the cells is configured in a unified manner, which is beneficial to reducing the signaling overhead.

[0222] In some possible manners, in the second measurement resource, at least N cells and at least one reference signal in each of the N cells satisfy the triggering condition, and the terminal device initiates the CSI report. That is, in the second measurement resource, as long as the reference signals of the N cells satisfy the triggering condition, the terminal device initiates the CSI report. The value of N can be configured by the network device. When the network device does not configure the value of N, N is equal to 1 by default.

[0223] Based on the above description, the set value can be set in combination with the signal transmission difference between the first reference signal and the candidate reference signal, the signal quality difference caused by the difference between the cells, and other factors.

[0224] In some examples, the set value is related to the transmission power information of the reference signal in the first measurement resource, the transmission power information of the reference signal in the second measurement resource, and the threshold value.

[0225] The transmission power information of the reference signal is used to indicate the transmission power of the reference signal. The transmission power of the reference signal is the transmission power of a specific signal set for the terminal device to measure and estimate the channel state. That is, the network device transmits the reference signal at a certain power, and after the terminal device receives the reference signal, the terminal device measures and analyzes the characteristics of the channel, such as signal attenuation, interference level, multipath propagation, etc., to estimate the state of the channel. The transmission power of the reference signal is relatively stable, which facilitates the terminal device to accurately measure and estimate the channel state. The setting of the transmission power of the reference signal will affect the measurement accuracy and accuracy of the terminal device on the channel state. Generally, the transmission power of the reference signal from the same cell is the same. Of course, the transmission power of the reference signal from the same cell can also be different. The specific implementation of the transmission power information of the reference signal is not limited in the present application. In some examples, the transmission power information of the reference signal can be the absolute value of the transmission power of the reference signal. Generally, the reference signal can be a broadcast signal. In some examples, the transmission power information of the reference signal can be a relative value of the transmission power of the reference signal, which refers to the difference between the transmission power of the reference signal and the transmission power of a certain signal. Generally, the certain signal can be a broadcast signal.

[0226] In some implementations, the set value can be the sum of the offset and the threshold value, the offset being the offset between the transmission power of the reference signal in the second measurement resource and the transmission power of the reference signal in the first measurement resource, that is, the offset between the transmission power of the candidate reference signal and the transmission power of the first reference signal. For example, the offset can be the transmission power of the reference signal in the second measurement resource minus the transmission power of the reference signal in the first measurement resource. For another example, the offset can be the result of other operations of the transmission power of the reference signal in the second measurement resource and the transmission power of the reference signal in the first measurement resource. The offset can also be referred to as an offset difference.

[0227] For example, the transmission power of the first reference signal is P1, the transmission power of the candidate reference signal is P2, and the threshold value is T0. Then, the set value T = P2-P1+T0.

[0228] Wherein, when the transmission power of the candidate reference signal and the transmission power of the first reference signal are the same, the offset is 0. At this time, the set value is the threshold value. When the transmission power of the candidate reference signal and the transmission power of the first reference signal are different, the set value includes two parts, one part is the offset, that is, P2-P1, and the other part is the threshold value.

[0229] For example, assume that the first measurement result is RSRP1 of the first reference signal, and the second measurement result is RSRP2 of the candidate reference signal. Then, the trigger condition is: RSRP2 > RSRP1 + T = RSRP1 + P2 - P1 + T0.

[0230] When the transmission power of the candidate reference signal is the same as the transmission power of the first reference signal, the offset is 0, and the trigger condition is: RSRP2 > RSRP1 + T = RSRP1 + T0.

[0231] When the trigger condition is met, the candidate reference signal is the second reference signal. When the trigger condition is not met, the candidate reference signal is not the second reference signal.

[0232] For example, assume that the first measurement result is SINR1 of the first reference signal, and the second measurement result is SINR2 of the candidate reference signal. Then, when the transmission power of the candidate reference signal is the same as the transmission power of the first reference signal, the offset is 0, and the trigger condition is: SINR2 > SINR1 + T = SINR1 + T0. When the transmission power of the candidate reference signal is different from the transmission power of the first reference signal, the trigger condition is: SINR2 > SINR1 + T = SINR1 + P2 - P1 + T0.

[0233]

[0234] In some examples, the set value is a threshold, the first measurement result is a result of scaling an actual measurement result of the first reference signal according to transmission power information of the first reference signal, and the second measurement result is a result of scaling an actual measurement result of the second reference signal according to transmission power information of the second reference signal.

[0235] For example, the first measurement result can be the actual measurement result of the first reference signal minus the transmission power information of the first reference signal. For another example, the first measurement result can be a result of performing other operations on the actual measurement result of the first reference signal and the transmission power information of the first reference signal.

[0236] For example, the second measurement result can be the actual measurement result of the second reference signal minus the transmission power information of the second reference signal. For another example, the second measurement result can be a result of performing other operations on the actual measurement result of the second reference signal and the transmission power information of the second reference signal.

[0237] ​For example, the transmission power of the first reference signal is P1, the transmission power of the candidate reference signal is P2, and the threshold is T0. The actual measurement result of the first reference signal is RSRP1, and the actual measurement result of the second reference signal is RSRP2. Then, the first measurement result is the result of scaling the actual measurement result of the first reference signal according to the transmission power information of the first reference signal, such as RSRP1-P1. The second measurement result is the result of scaling the actual measurement result of the first reference signal according to the transmission power information of the second reference signal, such as RSRP2-P2. Therefore, the triggering condition is RSRP2-P2>RSRP1-P1+T0.

[0238] When the transmission power of the candidate reference signal is the same as the transmission power of the first reference signal, the triggering condition is RSRP2>RSRP1+T0, that is, the first measurement result is the actual measurement result of the first reference signal, and the second measurement result is the actual measurement result of the second reference signal.

[0239] For example, the transmission power of the first reference signal is P1, the transmission power of the candidate reference signal is P2, and the threshold is T0. The actual measurement result of the first reference signal is SINR1, and the actual measurement result of the second reference signal is SINR2. Then, the first measurement result is the result of scaling the actual measurement result of the first reference signal according to the transmission power information of the first reference signal, such as SINR1-P1. The second measurement result is the result of scaling the actual measurement result of the first reference signal according to the transmission power information of the second reference signal, such as SINR2-P2. Therefore, the triggering condition is SINR2-P2>SINR1-P1+T0.

[0240] When the transmission power of the candidate reference signal is the same as the transmission power of the first reference signal, the triggering condition is SINR2>SINR1+T0, that is, the first measurement result is the actual measurement result of the first reference signal, and the second measurement result is the actual measurement result of the second reference signal.

[0241] In some embodiments, when the terminal device sends a channel state information report to the network device when the triggering condition is met, the transmission power of the reference signal of the first measurement resource is the same as the transmission power of the reference signal of the second measurement resource.

[0242] When the aforementioned triggering condition is met, the candidate reference signal is the second reference signal. When the aforementioned triggering condition is not met, the candidate reference signal is not the second reference signal.

[0243] Based on the foregoing description, the terminal device needs to know the transmission power of the reference signal in the first measurement resource and the transmission power of the reference signal in the second measurement resource.

[0244] Before S101, the network device can inform the terminal device of the transmission power of the reference signal in the first measurement resource and the transmission power of the reference signal in the second measurement resource in advance.

[0245] Next, the specific implementation of the above process will be described in detail in combination with FIG. 2.

[0246] As shown in FIG. 2, the communication method of the present application can further include:

[0247] S100, the network device sends first configuration information to the terminal device.

[0248] Correspondingly, the terminal device receives the first configuration information sent by the network device.

[0249] When S100 needs to be performed, the network device can send the first configuration information to the terminal device.

[0250] The first configuration information is used to indicate the transmission power information of the reference signal transmitted by the network device in the second measurement resource and the transmission power information of the reference signal transmitted by the network device in the first measurement resource.

[0251] Therefore, the terminal device can determine the transmission power of each reference signal in the first measurement resource and the transmission power of each reference signal in the second measurement resource by means of the first configuration information, which helps to accurately determine whether the triggering condition is met.

[0252] In addition, if the transmission power of the reference signals from the same cell is the same, then for the measurement and estimation of the channel state between cells, as another possible implementation, the first configuration information can be used to indicate the transmission power information of each cell transmitted by the network device in the second measurement resource and the transmission power information of each cell transmitted by the network device in the first measurement resource.

[0253] The transmission power information of the cell is used to indicate the transmission power of the cell. The transmission power of the cell refers to the total transmission power of the cell for transmitting data, control information, reference signals and other signals. The transmission power of the cell can be dynamically adjusted according to the load condition, coverage requirement, interference condition and the like of the cell. The setting of the transmission power of the cell will affect the coverage range, device capacity and interference level of the adjacent cell.

[0254] Generally, there is a certain proportion or relationship between the transmission power of the cell and the transmission power of the reference signal in the cell. With the adjustment of the transmission power of the cell, the transmission power of the reference signal will also change to ensure the proportion or relationship between them.

[0255] Therefore, the terminal device can determine the transmission power of the reference signal corresponding to each cell in the first measurement resource according to the transmission power of each cell in the first measurement resource and the transmission power of the reference signal corresponding to each cell in the second measurement resource according to the transmission power of each cell in the second measurement resource by means of the first configuration information and the mentioned ratio or relationship, thereby facilitating accurate channel state measurement and estimation among cells.

[0256] In the method, S100 is an optional step. If the transmission power information of the reference signal in the second measurement resource is consistent with the transmission power information of the reference signal in the first measurement resource, the network device does not need to transmit the first configuration information to the terminal device. And / or, the protocol can predefine the first configuration information, or the transmission power information of each reference signal, or the manner of obtaining the transmission power information of each reference signal. Therefore, before S101, the terminal device can obtain the first configuration information in advance, and the network device does not need to perform S100.

[0257] In summary, the terminal device can determine the transmission power of the reference signal in the measurement resource by means of the configuration of the network device.

[0258] Based on the foregoing description, the terminal device also needs to know the threshold value.

[0259] The threshold value is configured by the network device. Alternatively, the threshold value is a predefined value.

[0260] When the transmission power of the reference signal in the second measurement resource is the same as the transmission power of the reference signal in the first measurement resource, the threshold value can be configured as one.

[0261] When the transmission power of the reference signal in the second measurement resource is different from the transmission power of the reference signal in the first measurement resource, the threshold value can be configured as multiple. The threshold value can be configured in multiple ways.

[0262] In some examples, one threshold value can be configured for each cell. When the reference signal of multiple cells is included in the second measurement resource, the threshold value corresponding to the reference signal in the same cell is the same, and the threshold value corresponding to the reference signal in different cells is different.

[0263] Since the signal power of different cells is usually different, different threshold values can be set. The threshold value corresponding to the reference signal in a cell can be related to the transmission power of the cell.

[0264] For example, if the threshold value corresponding to the reference signal in cell 1 is less than the threshold value corresponding to the reference signal in cell 2, the transmission power of cell 1 can be higher than the transmission power of cell 2.

[0265] Since the priorities of the terminal device accessing the cells are different, different thresholds can be set. The threshold corresponding to the reference signal in the cell can be related to the priority of the terminal device accessing the cell.

[0266] For example, the threshold corresponding to the reference signal in the cell 1 is smaller than the threshold corresponding to the reference signal in the cell 2, and the priority of the terminal device accessing the cell 1 can be higher than the priority of the terminal device accessing the cell 2.

[0267] In summary, the threshold can be set to different sizes according to whether the cells are the same.

[0268] Therefore, when the first measurement resource and the second measurement resource come from the same cell, the threshold is the threshold of the cell. When the first measurement resource comes from the first cell and the second measurement resource comes from the second cell, the threshold is selected as the threshold of the second cell if the first cell and the second cell are different.

[0269] In some examples, a threshold is configured for each type of cell. That is, a threshold is configured for the serving cell, and another threshold is configured for the non-serving cell.

[0270] When the cell corresponding to the reference signal in the first measurement resource is the serving cell, the threshold is the first value. When the cell corresponding to the reference signal in the first measurement resource is the non-serving cell, the threshold is the second value.

[0271] The first value and the second value are not equal. In some examples, the first value is smaller than the second value.

[0272] Since the flexibility of switching between different beams (or different service links) in the cell is better than the flexibility of switching between different beams (or different service links) between cells, or the time delay of switching between different beams (or different service links) in the cell is lower than the time delay of switching between different beams (or different service links) between cells. Therefore, the first threshold is smaller than the second threshold. In this way, the threshold corresponding to the serving cell is smaller, which can reduce the frequency of cell switching.

[0273] In summary, the threshold can be set to different sizes according to the type of the cell.

[0274] Therefore, when the first measurement resource and the second measurement resource come from the same cell, the threshold is the threshold of the cell. When the first measurement resource comes from the first cell and the second measurement resource comes from the second cell, the threshold is selected as the threshold configured for the type of the second cell if the types of the first cell and the second cell are different.

[0275] Based on the above description, the terminal device needs to measure the second measurement resource to compare the signal quality of the second measurement resource with the first measurement resource. In the first measurement resource, the current serving beam is related to the first reference signal associated with the transmission configuration indication (TCI). In the second measurement resource, the candidate serving beam is explicitly configured by the network device.

[0276] The second measurement resource can contain multiple reference signals, such as multiple reference signals of one cell or reference signals of multiple cells. Then, the terminal device can need to measure a large number of reference signals, which increases the power consumption of the terminal device. Therefore, it is necessary to reduce the number of reference signals in the second measurement resource. In addition, since the terminal device has mobility, the distance between the serving cell and the adjacent cell can change. Therefore, it is necessary to dynamically adjust the reference signals that the terminal device needs to measure.

[0277] Based on this, the network device can adopt various implementation manners to instruct the terminal device to determine the reference signals that need to be measured.

[0278] In the following, in combination with FIG. 3 and FIG. 4, the specific implementation process of the network device instructing the terminal device to determine the reference signals that need to be measured is described in detail.

[0279] Please refer to FIG. 3, which is an interaction flowchart of a communication method provided by an embodiment of the present application. As shown in FIG. 3, the communication method provided by the present application can include:

[0280] S201, the network device sends first indication information to the terminal device.

[0281] Correspondingly, the terminal device receives the first indication information sent by the network device.

[0282] The first indication information is used to indicate the third measurement resource. The reference signals in the third measurement resource include at least one reference signal in the second measurement resource. The present application does not limit the transmission manner of the first indication information. In some examples, the first indication information can be indicated by a medium access control control element (MAC CE) or downlink control information (DCI). The present application does not limit the representation manner of the first indication information. In some examples, the first indication information can include the identification of the reference signal or the cell corresponding to the third measurement resource, such as cell index information, reference signal index information, etc.

[0283] That is, the reference signals in the third measurement resource are all included in the second measurement resource, and the number of the reference signals in the third measurement resource is less than that in the second measurement resource.

[0284] It can be seen that the network device can indicate the third measurement resource with a smaller number of reference signals to the terminal device by means of the first indication information, so that the terminal device can reduce the number of reference signals for measurement.

[0285] In addition, the second reference signal is included in the third measurement resource. Then, after the terminal device performs measurement on the third measurement resource, the measurement result of the reference signal in the third measurement resource includes the second measurement result. Further, the terminal device can determine that the trigger condition is met. When the trigger condition is met, the terminal device can perform S202.

[0286] S202, the terminal device sends a channel state information report to the network device when the trigger condition is met.

[0287] Correspondingly, the network device receives the channel state information report sent by the terminal device.

[0288] S202 is similar to the implementation of S101 in FIG. 2, and will not be described here.

[0289] It can be seen that the network device has previously configured X reference signals for the terminal device at the RRC layer, i.e., the second measurement resource. Further, the network device indicates Y reference signals to the terminal device, i.e., the third measurement resource. The Y reference signals belong to the X reference signals configured at the RRC layer, i.e., Y is less than X. Wherein, X and Y are positive integers greater than 1.

[0290] In some examples, the X reference signals belong to the reference signals of M cells, and the Y reference signals belong to the reference signals of N cells. Then, the N cells belong to the M cells configured at the RRC layer, i.e., M is greater than N, and X and Y are positive integers greater than 1.

[0291] In summary, the terminal device can reduce the measurement of the second measurement resource and reduce the measurement overhead of the terminal device through the further indication of the network device.

[0292] Please refer to FIG. 4, which is an interaction flowchart of a communication method provided by an embodiment of the present application. As shown in FIG. 4, the communication method provided by the present application can include:

[0293] S301, the network device sends second configuration information to the terminal device.

[0294] Correspondingly, the terminal device receives the second configuration information sent by the network device.

[0295] The second configuration information includes a correspondence relationship between a reference signal in the fourth measurement resource and a reference signal in the second measurement resource. In addition, the first configuration information and the second configuration information can be the same configuration information or different configuration information. The present application does not limit this. In addition, the reference signal in the fourth measurement resource at least includes the first reference signal. That is, the second configuration information at least includes a correspondence relationship between the first reference signal and a candidate reference signal.

[0296] The present application does not limit the representation of the correspondence relationship.

[0297] S302, the terminal device determines the fifth measurement resource from the second measurement resource according to the correspondence relationship and the first reference signal.

[0298] Therefore, the reference signal in the fifth measurement resource includes at least one reference signal in the second measurement resource. That is, the reference signal in the fifth measurement resource is included in the second measurement resource, and the number of reference signals in the fifth measurement resource is less than the number of reference signals in the second measurement resource.

[0299] In addition, the second reference signal is included in the fifth measurement resource. Then, after the terminal device measures the fifth measurement resource, the measurement result of the reference signal in the fifth measurement resource includes the second measurement result. Further, the terminal device can determine that the trigger condition is met. When the trigger condition is met, the terminal device can perform S303.

[0300] S303, the terminal device sends a channel state information report to the network device when the trigger condition is met.

[0301] Correspondingly, the network device receives the channel state information report sent by the terminal device.

[0302] The implementation of S303 is similar to that of S101 in FIG. 2, and will not be repeated here.

[0303] It can be seen that the network device includes the correspondence relationship between the fourth measurement resource and the second measurement resource in the information configured for the terminal device, and the terminal device can determine the fifth measurement resource from the second measurement resource according to the current first measurement resource.

[0304] In some embodiments, for one reference signal in the fourth measurement resource, the correspondence relationship can indicate that the coverage range of the reference signal is adjacent to the coverage range of the cell corresponding to the reference signal in the second measurement resource, that is, in the cell corresponding to the reference signal in the second measurement resource, the cell adjacent to the cell corresponding to the reference signal in the direction of the beam corresponding to the reference signal.

[0305] For example, refer to FIG. 5, which is a schematic diagram of a communication method according to an embodiment of the present application.

[0306] As shown in FIG. 5, cell 1 has two reference signals, namely reference signal 1 and reference signal 2. The beam for transmitting reference signal 1 is different from the beam for transmitting reference signal 2, so the coverage of the two beams is different.

[0307] The coverage of reference signal 1 is adjacent to the coverage of cell 2 and cell 3 respectively. That is, the beam for transmitting reference signal 1 is relatively close to the coverage between cell 2 and cell 3. The coverage of reference signal 2 is adjacent to the coverage of cell 4 and cell 5 respectively. That is, the beam for transmitting reference signal 2 is relatively close to the coverage between cell 4 and cell 5.

[0308] If the first reference signal is reference signal 1, the fifth measurement resource can include the reference signals associated with cell 2 and cell 3, or the reference signals associated with cell 1, cell 2 and cell 3, or the reference signal associated with cell 1. At this time, the second measurement resource can be the reference signals associated with cell 1, cell 2, cell 3, cell 4 and cell 5. The fifth measurement resource is a part of the reference signals of the second measurement resource, and the second reference signal is one of the reference signals in the fifth measurement resource.

[0309] If the first reference signal is reference signal 2, the fifth measurement resource can include the reference signals associated with cell 4 and cell 5, or the reference signals associated with cell 1, cell 4 and cell 5, or the reference signal associated with cell 1. At this time, the second measurement resource can be the reference signals associated with cell 1, cell 2, cell 3, cell 4 and cell 5. The fifth measurement resource is a part of the reference signals of the second measurement resource, and the second reference signal is one of the reference signals in the fifth measurement resource.

[0310] In summary, the terminal device can reduce the measurement of the second measurement resource and reduce the measurement overhead of the terminal device through the correspondence configured by the network device.

[0311] The methods in FIG. 3 and FIG. 4 can be used separately or in combination, which is not limited in the present application. When used in combination, the terminal device can measure all the reference signals in the third measurement resource and the fifth measurement resource, or measure the overlapping reference signals in the third measurement resource and the fifth measurement resource.

[0312] Based on the above description, the network device can also indicate which content needs to be carried in the CSI report by the terminal device.

[0313] Next, the specific content indicated by the network device for the terminal device to report will be described in detail in combination with FIG. 6 and FIG. 7.

[0314] Referring to FIG. 6, FIG. 6 is an interaction flowchart of a communication method provided by an embodiment of the present application. As shown in FIG. 6, the communication method provided by the present application can include the following steps.

[0315] S401. The network device sends second indication information to the terminal device.

[0316] Correspondingly, the terminal device receives the second indication information sent by the network device.

[0317] The second indication information is used to indicate the measurement result of the first reference signal sent by the terminal device. In addition, the second indication information and the first indication information can be the same indication information, or can be different indication information. The present application does not make any limitation in this regard.

[0318] S402. When the terminal device meets the triggering condition, the terminal device sends a channel state information report to the network device according to the second indication information.

[0319] Correspondingly, the network device receives the channel state information report sent by the terminal device.

[0320] The channel state information report is used to indicate the first measurement result and the second measurement result.

[0321] It can be seen that the terminal device needs to report the measurement result of the reference signal in the second measurement resource and the measurement result of the reference signal in the first measurement resource in the CSI report.

[0322] In summary, the terminal device carries the first measurement result and the second measurement result in the CSI report transmitted to the network device based on the second indication information.

[0323] The second indication information can only indicate the reporting of the first measurement result, or can indicate the reporting of the first measurement result and the measurement result of other reference signals in the first measurement resource except the first reference signal. In addition, the second indication information can also indicate the number of measurement results of other reference signals.

[0324] Thus, it is helpful for the network device to compare the signal quality of the current serving link and the candidate serving connection, so that the network device can perform resource allocation, scheduling decision, beam management, handover control and other operations within a cell or between cells, and ensure the communication continuity and communication quality of the terminal device.

[0325] Referring to FIG. 7, FIG. 7 is an interaction flowchart of a communication method provided by an embodiment of the present application. As shown in FIG. 7, the communication method provided by the present application can include the following steps.

[0326] S501. The network device sends third indication information to the terminal device.

[0327] Correspondingly, the terminal device receives third indication information sent by the network device.

[0328] The third indication information is used to indicate a measurement result of a reference signal of a serving cell in the second measurement resource.

[0329] S502, when the triggering condition is met, the terminal device sends a channel state information report to the network device according to the third indication information.

[0330] Correspondingly, the network device receives the channel state information report sent by the terminal device.

[0331] The channel state information report is also used to indicate the measurement result of the reference signal of the serving cell in the second measurement resource.

[0332] It can be seen that the terminal device needs to report the measurement result of the reference signal in the second measurement resource in the CSI report.

[0333] In summary, the terminal device carries the measurement result of the reference signal of the serving cell in the second measurement resource and the measurement result of the reference signal of the non-serving cell in the second measurement resource in the CSI report transmitted to the network device based on the third indication information.

[0334] Thus, it is helpful for the network device to determine more signal quality of the current service link, so that the network device can identify the reference signal with better signal quality in the serving cell within the cell, and ensure the communication continuity and quality of the terminal device.

[0335] Based on the above description, once the terminal device determines that the triggering condition is met, the terminal device can initiate the CSI report. In this way, the terminal device may frequently initiate the CSI report. Therefore, in S101, the terminal device can prevent the frequent CSI report by limiting the number of times and / or time.

[0336] In some examples, when the number of times that the second reference signal meets the triggering condition is greater than the first number of times, the terminal device can send a channel state information report to the network device.

[0337] Each reference signal in the second measurement resource can be associated with a counter. When the reference signal meets the triggering condition for the first time, the counter is started. Usually, the initial value of the counter is set to a default value, such as 0. When the value of the counter is greater than or equal to the first number of times, the terminal device initiates the CSI report.

[0338] For the second reference signal, the second reference signal can be associated with a counter. When the second reference signal meets the triggering condition for the first time, the counter starts. Each time the second reference signal meets the triggering condition, the value of the counter is incremented by 1, until the value of the counter is greater than or equal to the first number of times, and the terminal device initiates the CSI report. That is, it is ensured that the triggering condition occurs after being met multiple times, avoiding temporary satisfaction of the triggering condition due to ping-pong switching.

[0339] The first number of times can be configured by the network device, or a predefined value can be used, which is not limited in the present application.

[0340] For example, taking reference signal 1 as the second reference signal, once the signal quality of reference signal 1 is greater than the sum of the signal quality of the first reference signal and the set value, the value of the counter is incremented by 1. When the value of the counter is greater than or equal to the first number of times, the terminal device initiates the CSI report. When the value of the counter is less than the first number of times, the counter does not operate, and the terminal device does not initiate the CSI report.

[0341] Therefore, the terminal device can delay the time of initiating the CSI report by the number of times that a reference signal meets the triggering condition, which can avoid frequent CSI reporting and improve the reliability of the triggering condition through multiple counting.

[0342] The terminal device can initiate the CSI report when the number of times that a reference signal meets the triggering condition is greater than the first number of times. Alternatively, the terminal device can initiate the CSI report when the number of times that multiple reference signals meet the triggering condition are all greater than the first number of times.

[0343] In some examples, when the total number of times that the second reference signal and the reference signals belonging to the same cell as the second reference signal meet the triggering condition is greater than a third number of times, the terminal device can send a channel state information report to the network device.

[0344] The cells corresponding to the reference signals in the second measurement resource include multiple cells, and each cell can be associated with a counter. When the reference signal in the cell meets the triggering condition for the first time, the counter starts. Typically, the initial value of the counter is set to a default value, such as 0. When the value of the counter is greater than or equal to the third number of times, the terminal device initiates the CSI report.

[0345] For the cell corresponding to the second reference signal, the cell can be associated with a counter, all reference signals in the cell include the second reference signal and the reference signal belonging to the same cell as the second reference signal. When any one of the reference signals in the cell first meets the triggering condition, the counter starts. Each time a reference signal in the cell meets the triggering condition, the value of the counter is incremented by 1, and the terminal device will initiate a CSI report when the value of the counter is greater than or equal to the second number. That is, it is ensured that the triggering condition occurs after being met multiple times, avoiding temporary satisfaction of the triggering condition due to ping-pong switching.

[0346] Among them, multiple reference signals in the cell may meet the triggering condition at the same time, or may meet the triggering condition at different times. If X reference signals in the cell meet the triggering condition at the same time, the value of the counter is incremented by X, where X is the number of reference signals meeting the triggering condition at the same time, and X is a positive integer.

[0347] Among them, the third number can be configured by the network device, or a predefined value can be used, and the present application does not limit this.

[0348] For example, taking the multiple reference signals in the cell including reference signal 1 and reference signal 2 as an example, if the signal quality of reference signal 1 is greater than the sum of the signal quality of the first reference signal and the set value, the value of the counter is incremented by 1. If the signal quality of reference signal 2 is greater than the sum of the signal quality of the first reference signal and the set value, the value of the counter continues to be incremented by 1, and so on. When the value of the counter is greater than or equal to the third number, the terminal device initiates a CSI report. When the value of the counter is less than the third number, the counter does not operate, and the terminal device does not initiate a CSI report.

[0349] Therefore, the terminal device can delay the time of initiating a CSI report by the total number of times that the reference signals in a cell meet the triggering condition, can avoid frequent CSI reporting, and multiple counting can also improve the reliability of the triggering condition.

[0350] Among them, the terminal device can initiate a CSI report when the total number of times that the reference signals in a cell meet the triggering condition is greater than the third number. Or, the terminal device can initiate a CSI report when the total number of times that the reference signals in multiple cells meet the triggering condition are all greater than the third number.

[0351] In some examples, when the number of times that the second reference signal meets the triggering condition in the first time window is greater than the second number, the terminal device can send a channel state information report to the network device.

[0352] Each reference signal in the second measurement resource can be associated with a counter. When the reference signal meets the triggering condition for the first time, the counter starts. Generally, the initial value of the counter is set as a default value, such as 0. The terminal device initiates the CSI report only when the value of the counter is greater than or equal to the second number within the first time window.

[0353] The first time window can be a fixed time length. When the reference signal meets the triggering condition for the first time, the first time window starts to take effect. When the value of the counter is greater than or equal to the second number within the first time window, the first time window stops timing. When the first time window ends, the first time window also stops timing regardless of whether the value of the counter is greater than or less than the second number. At this time, the terminal device can continue to determine whether the reference signal meets the triggering condition.

[0354] In addition, the first time window can also be a sliding window. Through the sliding window, the terminal device initiates the CSI report only when it confirms that the number of times that the reference signal meets the triggering condition is greater than or equal to the second number.

[0355] For the second reference signal, the second reference signal can be associated with a counter. When the second reference signal meets the triggering condition for the first time, the counter starts and the first time window starts to take effect. Each time the second reference signal meets the triggering condition, the value of the counter is incremented by 1, and the terminal device initiates the CSI report only when the value of the counter is greater than or equal to the second number within the first time window. That is, it is ensured that the triggering condition occurs after the triggering condition is met multiple times within a time window, avoiding temporary satisfaction of the triggering condition due to ping-pong switching.

[0356] The second number can be configured by the network device or can adopt a predefined value, which is not limited in the present application. The first time window can be configured by the network device or can be predefined by the protocol, which is not limited in the present application.

[0357] Please refer to FIG. 8, which is a schematic diagram of a counter provided in an embodiment of the present application.

[0358] As shown in FIG. 8, taking the second reference signal as the reference signal 1 and the initial value of the counter as 0 as an example, at the first occasion, the signal quality of the reference signal 1 is greater than the sum of the signal quality of the first reference signal and a set value, the value of the counter is incremented by 1, and the first time window starts to take effect. At the second occasion, the signal quality of the reference signal 1 is greater than the sum of the signal quality of the first reference signal and the set value, the value of the counter is incremented by 1 again, and so on. Within the first time window, the value of the counter is greater than or equal to the second number, and the terminal device initiates the CSI report. After the first time window, the value of the counter is less than the second number, and the counter is cleared, and the terminal device does not initiate the CSI report.

[0359] Thus, the terminal device can delay the time of initiating the CSI report by the number of times that the reference signal meets the triggering condition and the time window of the number of times, can avoid frequent CSI reporting, and the multiple counting can also improve the reliability of the triggering condition.

[0360] The terminal device can initiate the CSI report when the number of times that the reference signal meets the triggering condition in the first time window is greater than the second number of times. Alternatively, the terminal device can initiate the CSI report when the number of times that the plurality of reference signals meet the triggering condition in the first time window are all greater than the second number of times, respectively.

[0361] In some examples, when the total number of times that the second reference signal and the reference signals belonging to the same cell as the second reference signal meet the triggering condition in the second time window is greater than the fourth number of times, the terminal device can send the channel state information report to the network device.

[0362] The cell corresponding to the reference signal in the second measurement resource includes a plurality of cells, and each cell can be associated with a counter. When the reference signal in the cell meets the triggering condition for the first time, the counter is started, and the second time window is effective. Generally, the initial value of the counter is set to a default value, such as 0. When the value of the counter is greater than or equal to the fourth number of times in the second time window, the terminal device initiates the CSI report.

[0363] The second time window can be a fixed time length. When the reference signal in the cell meets the triggering condition for the first time, the second time window is effective. When the value of the counter is greater than or equal to the fourth number of times in the second time window, the second time window stops timing. When the second time window ends, whether the value of the counter is still greater than or equal to the fourth number of times or not, the second time window also stops timing. At this time, the terminal device can continue to determine whether the reference signal in the cell meets the triggering condition.

[0364] In addition, the second time window can also be a sliding window. Through the sliding window, the terminal device initiates the CSI report only when it confirms that the number of times that the reference signal in the cell meets the triggering condition is greater than or equal to the fourth number of times.

[0365] For the cell corresponding to the second reference signal, the cell can be associated with a counter, and all the reference signals in the cell include the second reference signal and the reference signals belonging to the same cell as the second reference signal. When any one of the reference signals in the cell meets the triggering condition for the first time, the counter is started, and the second time window is effective. Each time a reference signal in the cell meets the triggering condition, the value of the counter is incremented by 1, until the value of the counter is greater than or equal to the fourth number of times in the second time window, and the terminal device initiates the CSI report. That is, it is ensured that the triggering condition occurs after being met multiple times in a time window, avoiding temporary satisfaction of the triggering condition due to ping-pong switching.

[0366] Wherein, multiple reference signals in a cell may satisfy the triggering condition at the same time, or may satisfy the triggering condition at different times. If X reference signals in a cell satisfy the triggering condition at the same time, the value of the counter is added by X, wherein X is the number of reference signals satisfying the triggering condition at the same time, and X is a positive integer.

[0367] For example, taking multiple reference signals in a cell including reference signal 1 and reference signal 2 as an example, at a first occasion, the signal quality of reference signal 1 is greater than the sum of the signal quality of the first reference signal and a set value, then the value of the counter is added by 1. At a second occasion, the signal quality of reference signal 1 is greater than the sum of the signal quality of the first reference signal and a set value, then the value of the counter is added by 1 again. At the second occasion, the signal quality of reference signal 2 is also greater than the sum of the signal quality of the first reference signal and a set value, then the value of the counter is added by 1 again. At a third occasion, the signal quality of reference signal 2 is greater than the sum of the signal quality of the first reference signal and a set value, then the value of the counter is continued to be added by 1, and so on. Within a second time window, if the value of the counter is greater than or equal to a fourth number of times, the terminal device initiates a CSI report. After the second time window, if the value of the counter is less than the fourth number of times, the counter is cleared, and the terminal device does not initiate a CSI report.

[0368] Therefore, the terminal device can delay the time of initiating a CSI report through the total number of times that the reference signals in a cell satisfy the triggering condition and the time window of the total number of times, and can avoid frequent CSI reports. Multiple counting can also improve the reliability of the triggering condition.

[0369] Wherein, the terminal device can initiate a CSI report when the total number of times that the reference signals in a cell satisfy the triggering condition within a second time window is greater than a fourth number of times. Or, the terminal device can initiate a CSI report when the total number of times that the reference signals in multiple cells satisfy the triggering condition within a second time window are all greater than a fourth number of times, respectively.

[0370] In summary, it can prevent the terminal device from frequently initiating a CSI report due to movement.

[0371] Based on the above description, in a CSI report, the measurement result of a certain reference signal is represented by an absolute measurement value, and the reference signal needs to satisfy the triggering condition. The measurement result of a certain reference signal is represented by a differential measurement value, and whether the reference signal satisfies the triggering condition is not limited.

[0372] Wherein, the priority of the reference signal corresponding to the measurement result represented by the absolute measurement value is higher than the priority of the reference signal corresponding to the measurement result represented by the differential measurement value.

[0373] When the measurement result of one reference signal satisfies the triggering condition, the CSI report can at least include the identity of the reference signal and the measurement result of the reference signal, the measurement result of the reference signal being represented by an absolute measurement value.

[0374] When the measurement result of multiple reference signals satisfies the triggering condition, the terminal device can generally select one reference signal with the best performance from the multiple reference signals. The CSI report can at least include the identity of the reference signal with the best performance and the measurement result of the reference signal with the best performance, the measurement result of the reference signal with the best performance being represented by an absolute measurement value.

[0375] For example, the reference signal with the best performance can be the reference signal with the maximum RSRP, or the reference signal with the maximum SINR.

[0376] In addition, the CSI report can also include the identity and measurement result of other reference signals. The measurement result of the other reference signals is represented by a differential measurement value. The other reference signals can satisfy the triggering condition, or can not satisfy the triggering condition, and can include reference signals satisfying the triggering condition and reference signals not satisfying the triggering condition, which are not limited by the present application. The terminal device can set the number of other reference signals in the CSI report according to actual needs and its own conditions.

[0377] In some examples, the CSI report can include multiple representation manners based on the number of reference signals.

[0378] As one feasible representation manner, the CSI report can include the identity and measurement result of one reference signal. The reference signal satisfies the triggering condition. The measurement result of the reference signal can be represented by an absolute measurement value,

[0379] As another feasible representation manner, the CSI report can include the identity and measurement result of multiple reference signals. The measurement result of the multiple reference signals is the measurement result of the reference signals of multiple cells, and the arrangement priority of the identity and measurement result of the reference signals of the cell satisfying the triggering condition is higher than the arrangement priority of the identity and measurement result of the reference signals of the cell not satisfying the triggering condition.

[0380] The reference signals of the cell satisfying the triggering condition can be one or more. The reference signals of the cell not satisfying the triggering condition can be one or more. The measurement result of the reference signals of the cell not satisfying the triggering condition can be represented by a differential measurement value.

[0381] When the reference signals of the cell satisfying the triggering condition are one, the corresponding one measurement result can be represented by an absolute measurement value.

[0382] When the reference signals of the cells satisfying the triggering condition are multiple, the ranking priority of the measurement result of the reference signal with the best performance among the corresponding multiple measurement results is higher than the ranking priority of the other measurement results. In some examples, the CSI report can include multiple representations based on the type of the reference signal.

[0383] As a feasible representation, the channel state information report can at least include the second measurement result and the identification of the second reference signal corresponding to the second measurement result.

[0384] The identification of the reference signal is used to uniquely identify the reference signal. For example, the identification of the reference signal can be index information of the reference signal.

[0385] In some embodiments, the ranking priority of the identification of the second reference signal corresponding to the second measurement result is higher than the ranking priority of the second measurement result. When the second measurement result is one, the one second measurement result can be represented by an absolute measurement value.

[0386] When the second measurement result is multiple, among the multiple second measurement results, the second measurement result indicating the reference signal with the best performance can be represented by an absolute measurement value, and the other second measurement results can be represented by a differential measurement value.

[0387] In addition, the terminal device can set the number of second measurement results in the CSI report according to actual needs and its own situation. Alternatively, the number of measurement results to be reported in one cell is indicated by the network device.

[0388] Therefore, when the channel state information report includes multiple measurement results, the multiple measurement results are measurement results of reference signals of multiple cells in the second measurement resource. The multiple measurement results include the second measurement result and the remaining measurement results.

[0389] The remaining measurement results are measurement results of reference signals other than the second reference signal in the second measurement resource. The reference signals corresponding to the remaining measurement results can satisfy the triggering condition or not satisfy the triggering condition, and can include reference signals satisfying the triggering condition and reference signals not satisfying the triggering condition.

[0390] When the second measurement result is the measurement result of the reference signal with the best performance, the second measurement result is represented by an absolute measurement value, and the remaining measurement results are represented by differential measurement values, which are the difference between the measurement results of the reference signals corresponding to the remaining measurement results and the second measurement result. Among them, the remaining measurement results can include measurement results of reference signals belonging to the same cell as the second reference signal.

[0391] Then, the second measurement result has a higher ranking priority than the measurement result of the reference signal belonging to the same cell as the second reference signal.

[0392] The remaining measurement results can include the measurement result of the reference signal belonging to the same cell as the second reference signal and the measurement result of the reference signal of another cell different from the cell of the second reference signal.

[0393] Then, the second measurement result has a higher ranking priority than the measurement result of the reference signal belonging to the same cell as the second reference signal, and the measurement result of the reference signal belonging to the same cell as the second reference signal has a higher ranking priority than the measurement result of the reference signal of another cell.

[0394] In the CSI report, the second measurement result has the highest ranking priority, the second measurement result is represented by an absolute measurement value, and the other measurement results of the reference signal belonging to the same cell as the second reference signal are represented by differential measurement values. In this case, the network device can instruct the terminal device to feed back only the measurement result of the reference signal belonging to the same cell as the second reference signal or the measurement result of the reference signal of the cell satisfying the triggering condition. Then, the CSI report can have the form shown in Table 1.

[0395] Table 1 Form of CSI report

[0396] In the CSI report, the second measurement result has the highest ranking priority, the second measurement result is represented by an absolute measurement value, the other measurement results of the reference signal belonging to the same cell as the second reference signal are represented by differential measurement values, and the measurement results of the reference signal of another cell different from the cell of the second reference signal are represented by differential measurement values. In this case, the network device can instruct the terminal device to feed back the measurement results of K cells, wherein the K cells include the measurement result of the reference signal of the cell where the second reference signal is located (or the measurement result of the reference signal of the cell satisfying the triggering condition) and the measurement results of K-1 reference signals of another cell different from the cell of the second reference signal. K is a positive integer greater than 1.

[0397] For example, assuming that four reference signals of the ith cell satisfy the triggering condition, four reference signals of the jth cell do not satisfy the triggering condition, the identity of the reference signal is exemplified by the index information of the reference signal, and the measurement result of the reference signal is exemplified by the RSRP of the reference signal. Then, the CSI report can have the form shown in Table 2.

[0398] Table 2 Form of CSI report

[0399] It can be seen that in the second measurement resource, the first reference signal of the i-th cell, the second reference signal of the i-th cell, the third reference signal of the i-th cell, and the fourth reference signal of the i-th cell are the top four reference signals in the i-th cell in terms of performance.

[0400] Among them, the performance of the first reference signal of the i-th cell is the best compared to the other three reference signals of the i-th cell except the first reference signal. That is, the RSRP of the first reference signal of the i-th cell is the largest.

[0401] In the second measurement resource, the first reference signal of the j-th cell, the second reference signal of the j-th cell, the third reference signal of the j-th cell, and the fourth reference signal of the j-th cell are the top four reference signals in the other cells except the i-th cell in terms of performance.

[0402] In summary, the CSI report at least includes the identification of one reference signal in the second measurement resource that meets the triggering condition and the measurement result.

[0403] As another feasible representation, in addition to including the second measurement result and the identification of the second reference signal corresponding to the second measurement result, the channel state information report can also include: the first measurement result.

[0404] Among them, the arrangement priority of the second measurement result is higher than the arrangement priority of the first measurement result. That is, the first measurement result has the lowest ordering priority compared to the second measurement result. Generally, the first measurement result is represented by a differential measurement value.

[0405] In addition, the CSI report can include the identification of the first reference signal corresponding to the first measurement result, or can not include the identification of the first reference signal corresponding to the first measurement result. Since the beam transmitting the first reference signal is the current serving beam, the network device has already known which beam or beams are the current serving beam. Therefore, the CSI report does not need to additionally indicate the identification of the first reference signal corresponding to the first measurement result.

[0406] When the channel state information report includes multiple measurement results, the multiple measurement results include the first measurement result and the remaining measurement results. The remaining measurement results are the measurement results of the reference signals in the first measurement resource except the first reference signal.

[0407] Among them, the remaining measurement results can include: the measurement results of the reference signals belonging to the same cell as the first reference signal, and the measurement results of the reference signals of other cells different from the cell to which the first reference signal belongs.

[0408] Therefore, the ranking priority of the first measurement result is higher than that of the measurement results of other reference signals belonging to the same cell as the first reference signal, and the ranking priority of the measurement results of the reference signals belonging to the same cell as the first reference signal is lower than that of the measurement results of the reference signals of other cells.

[0409] In the CSI report, the first measurement result is the first measurement result, the first measurement result is represented by a differential measurement value, the measurement results of the reference signals belonging to the same cell as the first reference signal are represented by differential measurement values, and the measurement results of the reference signals of other cells different from the first reference signal are represented by differential measurement values.

[0410] For example, assuming that at least one reference signal of the ith cell meets the triggering condition, four reference signals of the jth cell do not meet the triggering condition, and four reference signals of the kth cell are reference signals of the cell where the first measurement resource is located, the identity of the reference signal is exemplified by the index information of the reference signal, and the measurement result of the reference signal is exemplified by the RSRP of the reference signal. Therefore, the CSI report can adopt the form shown in Table 3.

[0411] Table 3 Form of CSI report

[0412] It can be seen that in the second measurement resource, the first reference signal of the ith cell, the second reference signal of the ith cell, the third reference signal of the ith cell, and the fourth reference signal of the ith cell are the top four reference signals in the ith cell in terms of performance.

[0413] Among the three reference signals of the ith cell other than the first reference signal, the performance of the first reference signal of the ith cell is the best, i.e., the RSRP of the first reference signal of the ith cell is the largest.

[0414] In the second measurement resource, the first reference signal of the jth cell, the second reference signal of the jth cell, the third reference signal of the jth cell, and the fourth reference signal of the jth cell are the top four reference signals in other cells other than the ith cell in terms of performance.

[0415] In the first measurement resource, the first reference signal of the kth cell is the first reference signal, and the second reference signal of the kth cell, the third reference signal of the kth cell, and the fourth reference signal of the kth cell are three reference signals belonging to the same cell as the first reference signal.

[0416] In summary, the CSI report at least includes the identity of one reference signal in the second measurement resource satisfying the triggering condition and the measurement result of the reference signal, and can further include the measurement result of one reference signal in the first measurement resource as a reference for determining whether the triggering condition is met.

[0417] Based on the above description, in the CSI report, the second measurement result is usually quantized using more bits, and the remaining measurement results are usually quantized using fewer bits. Therefore, the accuracy of the second measurement result is higher. After the CSI report is encoded, such as by a polar code, the information with a higher arrangement priority in the CSI report has a higher reliability. Accordingly, the network device needs to decode the information with a higher arrangement priority at a higher bit error rate.

[0418] In summary, the terminal device can measure the reference signals in the second measurement resource, but the terminal device can select the measurement results to be reported according to actual needs of the terminal device, and initiate the CSI report. In the CSI report, at least the second measurement result and the identity of the second reference signal corresponding to the second measurement result are included. Further, in combination with the actual needs, the first measurement result can also be included in the CSI report.

[0419] In the CSI report, the measurement result of the reference signal of the cell satisfying the triggering condition has a higher arrangement priority.

[0420] In the CSI report, among the multiple measurement results included in the CSI report, the first measurement result uses an absolute measurement value, and the remaining measurement results use differential measurement values. The differential measurement value can also be a relative measurement value.

[0421] In the CSI report, the measurement result of the reference signal of the cell in the first measurement resource has the lowest arrangement priority compared with the second measurement resource.

[0422] Exemplarily, the present application also provides a communication method.

[0423] Please refer to FIG. 9, which is an interaction flowchart of a communication method provided by an embodiment of the present application. The method is applied to a terminal device and a network device, wherein the communication device can be the communication device in FIG. 1 or a device in the communication device, and the network device can be the network device in FIG. 1 or a device in the network device. In order to simplify the description, taking the method executed by the terminal device and the network device as an example, as shown in FIG. 9, the communication method provided by the present application can include the following steps.

[0424] S601, the terminal device sends a channel state information report to the network device.

[0425] The channel state information report includes a second measurement result of the second reference signal and a third measurement result of the third reference signal. The second measurement result has a higher sorting priority than the third measurement result.

[0426] The second reference signal satisfies the triggering condition, and the third reference signal does not satisfy the triggering condition. The triggering condition can be referred to the foregoing description, and will not be described herein again.

[0427] When the CSI report needs to be reported, the terminal device can carry the second measurement result and the third measurement result in the CSI report, and the second measurement result has a higher sorting priority than the third measurement result. The terminal device can encode the CSI report in various ways such as polar code. After encoding, for the measurement result in the CSI report, the higher the sorting priority of the measurement result is, the higher the reliability of the measurement result is. In this way, the reliability of the second measurement result is higher than the reliability of the third measurement result. Therefore, the terminal device can send the CSI report to the network device, so that the network device can preferentially learn the signal quality of the second reference signal.

[0428] The communication method provided in the application can improve the reliability of the measurement result of the reference signal satisfying the triggering condition, by carrying the second measurement result of the reference signal satisfying the triggering condition and the measurement result of the reference signal not satisfying the triggering condition in the CSI report, and the measurement result of the reference signal satisfying the triggering condition has a higher sorting priority than the measurement result of the reference signal not satisfying the triggering condition. Therefore, the terminal device can send the CSI report to the network device, so that the network device can preferentially learn the signal quality of the reference signal satisfying the triggering condition, which helps the network device to compare the signal quality of the current service link and the candidate service connection, so that the network device can perform resource allocation, scheduling decision, beam management, handover control and other operations in the cell or between cells, to ensure the communication continuity and communication quality of the terminal device.

[0429] The difference between the method shown in FIG. 2 and the method shown in FIG. 9 is that, in FIG. 2, the configuration and triggering of the CSI report are focused on. The terminal device initiates the CSI report only when the triggering condition is satisfied. In FIG. 9, the content and format of the CSI report are focused on. The CSI report includes the second measurement result of the reference signal satisfying the triggering condition and the measurement result of the reference signal not satisfying the triggering condition, and the measurement result of the reference signal satisfying the triggering condition has a higher sorting priority than the measurement result of the reference signal not satisfying the triggering condition.

[0430] Based on the foregoing description, the measurement result in the CSI report can be represented in various ways.

[0431] In some examples, the second measurement result and the third measurement result are both expressed by absolute measurement values. Thus, the absolute measurement values enable the network device to directly obtain the measurement results.

[0432] In some examples, the second measurement result is expressed by an absolute measurement value, and the third measurement result is expressed by a differential measurement value, which is a difference between the third measurement result and the second measurement result. Thus, the absolute measurement value and the differential measurement value enable the second measurement result to have higher accuracy and reduce overhead.

[0433] In some embodiments, the absolute measurement value has more bits than the differential measurement value. For example, the absolute measurement value has 5 bits, and the differential measurement value has 4 bits. The absolute measurement value has higher accuracy than the differential measurement value.

[0434] Based on the above description, in the CSI report, the measurement results of the reference signals in the cell where the second reference signal is located have higher sorting priority than the measurement results of the reference signals in the cells different from the cell where the second reference signal is located.

[0435] In this way, the reference signals in the cell where the second reference signal is located have higher reliability, and the network device can comprehensively understand the signal quality of the second reference signal and the channel state of the cell where the second reference signal is located.

[0436] The cell corresponding to the second reference signal can include one or more cells. The cell corresponding to the third reference signal can include one or more cells. Thus, four cases can be formed.

[0437] Next, the sorting of the measurement results in the CSI report is described in detail in combination with the four cases.

[0438] When the cell corresponding to the second reference signal is one cell, such as cell 1, and the cell corresponding to the third reference signal is one cell, such as cell 2, the measurement results of the reference signals in cell 1 have higher sorting priority than the measurement results of the reference signals in cell 2.

[0439] For the reference signals in cell 1, the measurement results of the reference signals satisfying the triggering condition have higher sorting priority than the measurement results of the reference signals not satisfying the triggering condition.

[0440] For the reference signals in cell 2, the measurement results of the reference signals satisfying the triggering condition have higher sorting priority than the measurement results of the reference signals not satisfying the triggering condition.

[0441] When the cell corresponding to the second reference signal is one cell, such as cell 1, and the cell corresponding to the third reference signal includes multiple cells, such as cell 2 and cell 3, the ranking priority of the measurement result of the reference signal in cell 1 is higher than the ranking priority of the measurement result of the reference signal in cell 2 and cell 3.

[0442] For the reference signal in cell 1, the ranking priority of the measurement result of the reference signal satisfying the triggering condition is higher than the ranking priority of the measurement result of the reference signal not satisfying the triggering condition.

[0443] For the reference signal in cell 2, the ranking priority of the measurement result of the reference signal satisfying the triggering condition is higher than the ranking priority of the measurement result of the reference signal not satisfying the triggering condition.

[0444] For the reference signal in cell 3, the ranking priority of the measurement result of the reference signal satisfying the triggering condition is higher than the ranking priority of the measurement result of the reference signal not satisfying the triggering condition.

[0445] For the reference signal in cell 2 and cell 3, if the best measurement result of the reference signal in cell 2 is better than the best measurement result of the reference signal in cell 3, the ranking priority of the measurement result of the reference signal in cell 2 is higher than the ranking priority of the measurement result of the reference signal in cell 3. Conversely, the ranking priority of the measurement result of the reference signal in cell 3 is higher than the ranking priority of the measurement result of the reference signal in cell 2.

[0446] When the cell corresponding to the second reference signal includes multiple cells, such as cell 1 and cell 2, and the cell corresponding to the third reference signal is one cell, such as cell 3, the ranking priority of the measurement result of the reference signal in cell 1 and cell 2 is higher than the ranking priority of the measurement result of the reference signal in cell 3.

[0447] For the reference signal in cell 1, the ranking priority of the measurement result of the reference signal satisfying the triggering condition is higher than the ranking priority of the measurement result of the reference signal not satisfying the triggering condition.

[0448] For the reference signal in cell 2, the ranking priority of the measurement result of the reference signal satisfying the triggering condition is higher than the ranking priority of the measurement result of the reference signal not satisfying the triggering condition.

[0449] For the reference signal in cell 1 and cell 2, if the best measurement result of the reference signal in cell 1 is better than the best measurement result of the reference signal in cell 2, the ranking priority of the measurement result of the reference signal in cell 1 is higher than the ranking priority of the measurement result of the reference signal in cell 2. Conversely, the ranking priority of the measurement result of the reference signal in cell 2 is higher than the ranking priority of the measurement result of the reference signal in cell 1.

[0450] For the reference signals in cell 3, the measurement results of the reference signals satisfying the triggering condition have higher ranking priority than the measurement results of the reference signals not satisfying the triggering condition.

[0451] When the cells corresponding to the second reference signals include multiple cells, such as cell 1 and cell 2, and the cells corresponding to the third reference signals include multiple cells, such as cell 3 and cell 4, the measurement results of the reference signals in cell 1 and cell 2 have higher ranking priority than the measurement results of the reference signals in cell 3, and the measurement results of the reference signals in cell 1 and cell 2 have higher ranking priority than the measurement results of the reference signals in cell 4.

[0452] For the reference signals in cell 1, the measurement results of the reference signals satisfying the triggering condition have higher ranking priority than the measurement results of the reference signals not satisfying the triggering condition.

[0453] For the reference signals in cell 2, the measurement results of the reference signals satisfying the triggering condition have higher ranking priority than the measurement results of the reference signals not satisfying the triggering condition.

[0454] For the reference signals in cell 1 and cell 2, if the best measurement result of the reference signals in cell 1 is better than the best measurement result of the reference signals in cell 2, the measurement results of the reference signals in cell 1 have higher ranking priority than the measurement results of the reference signals in cell 2. Conversely, the measurement results of the reference signals in cell 2 have higher ranking priority than the measurement results of the reference signals in cell 1.

[0455] For the reference signals in cell 3, the measurement results of the reference signals satisfying the triggering condition have higher ranking priority than the measurement results of the reference signals not satisfying the triggering condition.

[0456] For the reference signals in cell 4, the measurement results of the reference signals satisfying the triggering condition have higher ranking priority than the measurement results of the reference signals not satisfying the triggering condition.

[0457] For the reference signals in cell 3 and cell 4, if the best measurement result of the reference signals in cell 3 is better than the best measurement result of the reference signals in cell 4, the measurement results of the reference signals in cell 3 have higher ranking priority than the measurement results of the reference signals in cell 4. Conversely, the measurement results of the reference signals in cell 4 have higher ranking priority than the measurement results of the reference signals in cell 5.

[0458] In the above four cases, the measurement result of the reference signal satisfying the triggering condition can include multiple, and the ranking priority of the multiple measurement results can be set from high to low according to the performance of the reference signal corresponding to the measurement result, that is, the ranking priority of the measurement result of the reference signal with the best performance is the highest.

[0459] The measurement result of the reference signal not satisfying the triggering condition can include multiple, and the ranking priority of the multiple measurement results can refer to the setting manner of the ranking priority of the measurement result of the reference signal satisfying the triggering condition, which will not be described here.

[0460] Based on the above description, the CSI report can further include: an identification of the second reference signal, and an identification of the third reference signal.

[0461] The identification of the second reference signal is used to uniquely determine the second reference signal. The identification of the third reference signal is used to uniquely determine the third reference signal. The identification of the reference signal can be represented in a manner such as index information of the second reference signal, index information of the cell where the second reference signal is located, and the like.

[0462] Thus, the network device can determine the second reference signal and the third reference signal in time.

[0463] Based on the above description, the CSI report can further include: a first measurement result of the first reference signal.

[0464] The ranking priority of the second measurement result is higher than the ranking priority of the first measurement result. The triggering condition is that the first measurement result is greater than the second measurement result.

[0465] Thus, the network device can know the signal quality of the second reference signal and the signal quality of the first reference signal, which helps the network device to compare the signal quality of the current serving link and the candidate serving connection, so that the network device can perform resource allocation, scheduling decision, beam management, handover control and the like within or between cells, and ensure the communication continuity and communication quality of the terminal device.

[0466] In addition, since the beam transmitting the first reference signal is the current serving beam, the network device has already known which beam or beams are the current serving beam. Therefore, the CSI report does not need to additionally indicate the identification of the first reference signal corresponding to the first measurement result. The overhead can be reduced. Of course, the CSI report can also include the identification of the first reference signal.

[0467] In some examples, the ranking priority of the first measurement result is the lowest. Of course, the ranking priority of the first measurement result can also be higher than the ranking priority of the third measurement result. Thus, the ranking priority of the second measurement result can be guaranteed to be the highest, so that the reliability of the second measurement result is the highest.

[0468] In some examples, the first measurement result is represented by a differential measurement value, which is a difference between the first measurement result and the second measurement result. In this way, overhead can be reduced.

[0469] In addition, the specific implementation of the CSI report can refer to the description in the foregoing, such as Table 2 and Table 3, which will not be described herein.

[0470] Exemplarily, the present application also provides a communication apparatus.

[0471] Please refer to FIG. 10, which is a structural schematic diagram of a communication apparatus provided by an embodiment of the present application.

[0472] As shown in FIG. 10, the communication apparatus 100 can exist independently, or can be integrated in other devices, and can communicate with the terminal device mentioned above to implement the operation corresponding to the network device in any of the above-mentioned method embodiments.

[0473] The communication apparatus 100 can include a transceiver unit 101. The communication apparatus 100 can also include a processing unit. The transceiver unit 101 can implement corresponding communication functions, and the processing unit can be used for data processing. The transceiver unit 101 can also be referred to as a communication interface or a communication unit.

[0474] Optionally, the communication apparatus 100 can also include a storage unit, which can be used to store instructions and / or data. The processing unit can read the instructions and / or data in the storage unit, so that the communication apparatus 100 implements the above-mentioned method embodiments.

[0475] The communication apparatus 100 can be used to perform the actions performed by the terminal device in the above-mentioned method embodiments. The communication apparatus 100 can be a terminal device or a component configurable to a terminal device. The transceiver unit 101 is used to perform the receiving-related operations of the terminal device in the above-mentioned method embodiments, and the processing unit is used to perform the processing-related operations of the terminal device in the above-mentioned method embodiments.

[0476] Optionally, the transceiver unit 101 can include a sending unit and a receiving unit. The sending unit is used to perform the sending operations in the above-mentioned method embodiments. The receiving unit is used to perform the receiving operations in the above-mentioned method embodiments.

[0477] It should be noted that the communication apparatus 100 can include a sending unit and not include a receiving unit. Alternatively, the communication apparatus 100 can include a receiving unit and not include a sending unit. Whether the sending unit and the receiving unit are included in the communication apparatus 100 can depend on whether the communication apparatus 100 performs the sending action and the receiving action in the above-mentioned scheme.

[0478] As an example, the communication apparatus 100 is used to perform the actions performed by the terminal device in the above-mentioned embodiments shown in FIG. 1-FIG. 8.

[0479] The communication apparatus 100 can comprise a transceiver 101.

[0480] The transceiver 101 is configured to send a channel state information report to a network device when a trigger condition is met.

[0481] The trigger condition comprises that a second measurement result is better than a first measurement result.

[0482] The first measurement result is used to indicate a measurement result of a first reference signal, and the second measurement result is used to indicate a measurement result of a second reference signal, the first reference signal is contained in a first measurement resource, and the second reference signal is contained in a second measurement resource.

[0483] The cell corresponding to the reference signal in the first measurement resource comprises a serving cell.

[0484] The cell corresponding to the reference signal in the second measurement resource comprises the serving cell and / or a non-serving cell.

[0485] The channel state information report is used to at least indicate the second measurement result.

[0486] In some embodiments, the transceiver is further configured to receive first configuration information sent by the network device.

[0487] The first configuration information is used to indicate transmission power information of the network device transmitting the reference signal in the second measurement resource and transmission power information of the network device transmitting the reference signal in the first measurement resource.

[0488] In some embodiments, the transceiver is further configured to receive first indication information sent by the network device.

[0489] The first indication information is used to indicate a third measurement resource, and the reference signal in the third measurement resource comprises at least one reference signal in the second measurement resource.

[0490] The second reference signal is contained in the third measurement resource.

[0491] In some embodiments, the transceiver is further configured to receive second configuration information sent by the network device, and the second configuration information comprises a correspondence relationship between the reference signal in a fourth measurement resource and the reference signal in the second measurement resource, and the reference signal in the fourth measurement resource at least comprises the first reference signal.

[0492] The fifth measurement resource is determined from the second measurement resource according to the correspondence relationship and the first reference signal, and the reference signal in the fifth measurement resource comprises at least one reference signal in the second measurement resource.

[0493] The second reference signal is contained in the fifth measurement resource.

[0494] In some embodiments, the transceiver is further configured to receive second indication information sent by the network device, wherein the second indication information is used to indicate the terminal device to send the measurement result of the first reference signal.

[0495] The transceiver is further configured to send the channel state information report to the network device, including: sending the channel state information report to the network device according to the second indication information, wherein the channel state information report is used to indicate the first measurement result and the second measurement result.

[0496] In some embodiments, the transceiver is further configured to receive third indication information sent by the network device, wherein the third indication information is used to indicate the terminal device to send the measurement result of the reference signal of the serving cell in the second measurement resource.

[0497] The transceiver is further configured to send the channel state information report to the network device, including: sending the channel state information report to the network device according to the third indication information, wherein the channel state information report is used to indicate the measurement result of the reference signal of the serving cell in the second measurement resource.

[0498] In some embodiments, the transceiver is further configured to send the channel state information report to the network device when the number of times that the second reference signal meets the triggering condition is greater than the first number of times.

[0499] Or, send the channel state information report to the network device when the number of times that the second reference signal meets the triggering condition in the first time window is greater than the second number of times.

[0500] Or, send the channel state information report to the network device when the total number of times that the second reference signal and the reference signal belonging to the same cell as the second reference signal meet the triggering condition is greater than the third number of times.

[0501] Or, send the channel state information report to the network device when the total number of times that the second reference signal and the reference signal belonging to the same cell as the second reference signal meet the triggering condition in the second time window is greater than the fourth number of times.

[0502] It should be understood that each unit performs the corresponding process described above, which has been described in detail in the above method embodiments. For the sake of brevity, it will not be repeated here.

[0503] The processing unit in the foregoing embodiments can be implemented by at least one processor or processor-related circuit. The transceiver can be implemented by a transceiver or transceiver-related circuit. The transceiver can also be referred to as a communication unit or a communication interface. The storage unit can be implemented by at least one memory.

[0504] Exemplarily, the present application also provides a communication device.

[0505] Please refer to Fig. 11, which is a structural schematic diagram of a communication apparatus provided in an embodiment of the present application.

[0506] As shown in Fig. 11, the communication apparatus 200 can exist independently or be integrated into other devices, and can communicate with the network devices mentioned above to implement the operations of the terminal device in any of the above method embodiments.

[0507] The communication apparatus 200 can include a transceiver 201. The communication apparatus 200 can also include a processing unit. The transceiver 201 can implement corresponding communication functions, and the processing unit can be configured to perform data processing.

[0508] Optionally, the communication apparatus 200 can further include a storage unit, which can be configured to store instructions and / or data. The processing unit can read the instructions and / or data in the storage unit, so that the communication apparatus 200 implements the above method embodiments.

[0509] The communication apparatus 200 can be configured to perform the operations of the network device in the above method embodiments. The communication apparatus 200 can be the network device or a component of the network device. The transceiver 201 can be configured to perform the receiving operations of the network device in the above method embodiments, and the processing unit can be configured to perform the processing operations of the network device in the above method embodiments.

[0510] Optionally, the transceiver 201 can include a transmitter and a receiver. The transmitter can be configured to perform the transmitting operations in the above method embodiments. The receiver can be configured to perform the receiving operations in the above method embodiments.

[0511] It should be noted that the communication apparatus 200 can include the transmitter but not the receiver. Alternatively, the communication apparatus 200 can include the receiver but not the transmitter. Whether the transmitter and the receiver are included in the communication apparatus 200 can depend on whether the communication apparatus 200 performs the transmitting operations and the receiving operations in the above solutions.

[0512] As an example, the communication apparatus 200 can be configured to perform the operations of the network device in the embodiments shown in Figs. 1-8.

[0513] The communication apparatus 200 can include a transceiver 201.

[0514] The transceiver 201 can be configured to receive a channel state information report sent by a terminal device.

[0515] The channel state information report is sent by the terminal device when a trigger condition is met.

[0516] The trigger condition includes that a second measurement result is better than a first measurement result.

[0517] The first measurement result is used to indicate a measurement result of a first reference signal, and the second measurement result is used to indicate a measurement result of a second reference signal, the first reference signal is contained in a first measurement resource, and the second reference signal is contained in a second measurement resource;

[0518] The cell corresponding to the reference signal in the first measurement resource includes a serving cell;

[0519] The cell corresponding to the reference signal in the second measurement resource includes the serving cell and / or a non-serving cell;

[0520] The channel state information report is used to at least indicate the second measurement result.

[0521] In some examples, the transceiver 201 is further configured to send first configuration information to the terminal device;

[0522] The first configuration information is used to indicate transmission power information of the network device transmitting the reference signal in the second measurement resource and transmission power information of the network device transmitting the reference signal in the first measurement resource.

[0523] In some examples, the transceiver 201 is further configured to send first indication information to the terminal device;

[0524] The first indication information is used to indicate a third measurement resource, and the reference signal in the third measurement resource includes at least one reference signal in the second measurement resource;

[0525] The second reference signal is contained in the third measurement resource.

[0526] In some examples, the transceiver 201 is further configured to send second configuration information to the terminal device, the second configuration information includes a correspondence relationship between the reference signal in a fourth measurement resource and the reference signal in the second measurement resource, the reference signal in the fourth measurement resource includes at least the first reference signal, the terminal device determines a fifth measurement resource from the second measurement resource according to the correspondence relationship and the first reference signal, the reference signal in the fifth measurement resource includes at least one reference signal in the second measurement resource, and the second reference signal is contained in the fifth measurement resource.

[0527] In some examples, the transceiver 201 is further configured to send second indication information to the terminal device, the second indication information is used to instruct the terminal device to send a measurement result of the first reference signal;

[0528] According to the second indication information, a channel state information report sent by the terminal device is received, and the channel state information report is used to indicate the first measurement result and the second measurement result;

[0529] In some examples, the transceiver 201 is further configured to send, to the terminal device, third indication information, the third indication information being used to instruct the terminal device to send a measurement result of a reference signal of a serving cell in the second measurement resource.

[0530] According to the third indication information, the channel state information report sent by the terminal device is received, and the channel state information report is further used to instruct the measurement result of the reference signal of the serving cell in the second measurement resource.

[0531] It should be understood that the respective units perform the above-mentioned corresponding processes, which have been described in detail in the above-mentioned method embodiments. For the sake of brevity, they will not be described here again.

[0532] The processing unit in the foregoing embodiments can be implemented by at least one processor or processor-related circuit. The transceiver 201 can be implemented by a transceiver or transceiver-related circuit. The transceiver 201 can also be referred to as a communication unit or a communication interface. The storage unit can be implemented by at least one memory.

[0533] In some examples of FIG. 10 or FIG. 11, the triggering condition includes that the second measurement result is better than the first measurement result, including that the second measurement result is greater than the first measurement result, and a difference between the second measurement result and the first measurement result is greater than a set value.

[0534] In some examples of FIG. 10 or FIG. 11, the set value is related to transmission power information of the second reference signal, transmission power information of the first reference signal, and a threshold value.

[0535] Alternatively, the first measurement result is a result of actual measurement of the first reference signal scaled according to the transmission power information of the first reference signal; the second measurement result is a result of actual measurement of the second reference signal scaled according to the transmission power information of the second reference signal; and the set value is the threshold value.

[0536] In some examples of FIG. 10 or FIG. 11, the threshold value is configured by the network device; or, the threshold value is predefined.

[0537] In some examples of FIG. 10 or FIG. 11, the second measurement resource includes reference signals of multiple cells, the threshold values corresponding to the reference signals in the same cell are the same, and the threshold values corresponding to the reference signals in different cells are different.

[0538] In some examples of FIG. 10 or FIG. 11, when the cell corresponding to the reference signal in the first measurement resource is a serving cell, the threshold value is a first value; and when the cell corresponding to the reference signal in the first measurement resource is a non-serving cell, the threshold value is a second value.

[0539] In some examples of FIG. 10 or 11, the channel state information report at least includes the second measurement result and an identification of the second reference signal corresponding to the second measurement result.

[0540] In some examples of FIG. 10 or 11, when the channel state information report includes multiple measurement results, the second measurement result is represented by an absolute measurement value, and the remaining measurement results are represented by differential measurement values, the differential measurement values being differences between measurement results of reference signals corresponding to the remaining measurement results and the second measurement result.

[0541] In some examples of FIG. 10 or 11, in the channel state information report, measurement results of reference signals belonging to a same cell as the second reference signal have a higher sorting priority than measurement results of reference signals belonging to other cells.

[0542] In some examples of FIG. 10 or 11, the channel state information report further includes the first measurement result.

[0543] In some examples of FIG. 10 or 11, in the channel state information report, measurement results of reference signals belonging to a same cell as the first reference signal have a lower sorting priority than measurement results of reference signals belonging to other cells.

[0544] Exemplarily, the present application also provides a communication apparatus.

[0545] Please refer to FIG. 12, which is a structural schematic diagram of a communication apparatus provided by an embodiment of the present application.

[0546] As shown in FIG. 12, the communication apparatus 300 can exist independently or be integrated in other devices, and can communicate with the terminal devices mentioned above to implement the operations corresponding to the network device in any of the above method embodiments.

[0547] The communication apparatus 300 can include a transceiver unit 301. The communication apparatus 300 can also include a processing unit. The transceiver unit 301 can implement corresponding communication functions, and the processing unit can be used for data processing. The transceiver unit 301 can also be referred to as a communication interface or a communication unit.

[0548] Optionally, the communication apparatus 300 can also include a storage unit, which can be used to store instructions and / or data. The processing unit can read the instructions and / or data in the storage unit, so that the communication apparatus 300 implements the above method embodiments.

[0549] The communication apparatus 300 can be configured to perform the actions of the terminal device in the foregoing method embodiments. The communication apparatus 300 can be the terminal device or a component configured to the terminal device. The transceiver 301 is configured to perform the receiving related operations of the terminal device in the foregoing method embodiments, and the processing unit is configured to perform the processing related operations of the terminal device in the foregoing method embodiments.

[0550] Optionally, the transceiver 301 can include a transmitter and a receiver. The transmitter is configured to perform the transmitting operations in the foregoing method embodiments. The receiver is configured to perform the receiving operations in the foregoing method embodiments.

[0551] It should be noted that the communication apparatus 300 can include the transmitter but not the receiver. Alternatively, the communication apparatus 300 can include the receiver but not the transmitter. Specifically, whether the transmitter and the receiver are included in the communication apparatus 300 can depend on whether the transmitting and receiving operations are included in the above-described schemes performed by the communication apparatus 300.

[0552] As an example, the communication apparatus 300 is configured to perform the actions of the terminal device in the embodiment shown in FIG. 9.

[0553] The communication apparatus 300 can include the transceiver 301.

[0554] The transceiver 301 is configured to send, to a network device, a channel state information report including a second measurement result of a second reference signal and a third measurement result of a third reference signal.

[0555] The sorting priority of the second measurement result is higher than the sorting priority of the third measurement result.

[0556] The second reference signal satisfies a triggering condition, and the third reference signal does not satisfy the triggering condition.

[0557] It should be understood that the above-described processes performed by each unit have been described in detail in the foregoing method embodiments, and thus will not be described herein for brevity.

[0558] The processing unit in the foregoing embodiments can be implemented by at least one processor or processor-related circuit. The transceiver 301 can be implemented by a transceiver or transceiver-related circuit. The transceiver 301 can also be referred to as a communication unit or a communication interface. The storage unit can be implemented by at least one memory.

[0559] Exemplarily, the present application also provides a communication apparatus.

[0560] Please refer to FIG. 13, which is a structural schematic diagram of a communication apparatus according to an embodiment of the present application.

[0561] As shown in FIG. 13, the communication apparatus 400 can exist independently, or can be integrated into other devices, and can communicate with the network devices mentioned above to implement the operations of the terminal device in any of the method embodiments.

[0562] The communication apparatus 400 can include a transceiver 401. The communication apparatus 400 can also include a processing unit. The transceiver 401 can implement corresponding communication functions, and the processing unit can be configured to perform data processing.

[0563] Optionally, the communication apparatus 400 can also include a storage unit, which can be configured to store instructions and / or data. The processing unit can read the instructions and / or data in the storage unit, so that the communication apparatus 400 implements the foregoing method embodiments.

[0564] The communication apparatus 400 can be configured to perform the operations of the network device in the foregoing method embodiments. The communication apparatus 400 can be the network device or a component of the network device. The transceiver 401 can be configured to perform the receiving operations of the network device in the foregoing method embodiments, and the processing unit can be configured to perform the processing operations of the network device in the foregoing method embodiments.

[0565] Optionally, the transceiver 401 can include a transmitter and a receiver. The transmitter can be configured to perform the transmitting operations in the foregoing method embodiments. The receiver can be configured to perform the receiving operations in the foregoing method embodiments.

[0566] It should be noted that the communication apparatus 400 can include the transmitter and not include the receiver. Alternatively, the communication apparatus 400 can include the receiver and not include the transmitter. Whether the communication apparatus 400 includes the transmitter or the receiver can depend on whether the communication apparatus 400 performs the transmitting operations or the receiving operations in the foregoing schemes.

[0567] As an example, the communication apparatus 400 can be configured to perform the operations of the network device in the embodiment shown in FIG. 9.

[0568] The communication apparatus 400 can include a transceiver 401.

[0569] The transceiver 401 can be configured to receive a channel state information report sent by a terminal device, where the channel state information report includes a second measurement result of a second reference signal and a third measurement result of a third reference signal.

[0570] The second measurement result has a higher sorting priority than the third measurement result.

[0571] The second reference signal satisfies a triggering condition, and the third reference signal does not satisfy the triggering condition.

[0572] It should be understood that each unit performs the corresponding process described above has been described in detail in the above method embodiments, and for the sake of brevity, will not be repeated here.

[0573] The processing unit in the foregoing embodiments can be implemented by at least one processor or processor-related circuit. The transceiving unit 401 can be implemented by a transceiver or transceiver-related circuit. The transceiving unit 401 can also be referred to as a communication unit or a communication interface. The storage unit can be implemented by at least one memory.

[0574] In some examples of FIG. 12 or FIG. 13, the second measurement result is represented by an absolute measurement value, and the third measurement result is represented by a differential measurement value, which is a difference between the third measurement result and the second measurement result.

[0575] In some examples of FIG. 12 or FIG. 13, in the channel state information report, the measurement result of the reference signal belonging to the same cell as the second reference signal has a higher priority in the ordering than the measurement result of the reference signal of a cell different from the cell where the second reference signal is located.

[0576] In some examples of FIG. 12 or FIG. 13, the channel state information report further includes: an identity of the second reference signal, and an identity of the third reference signal.

[0577] In some examples of FIG. 12 or FIG. 13, the triggering condition includes that the second measurement result is better than the first measurement result; and the first measurement result is used to indicate the measurement result of the first reference signal.

[0578] In some examples of FIG. 12 or FIG. 13, the first reference signal is a reference signal of a serving cell;

[0579] The second reference signal is a reference signal of a serving cell or a non-serving cell;

[0580] The third reference signal is a reference signal of a serving cell or a non-serving cell.

[0581] In some examples of any one of FIG. 10 to FIG. 13, the measurement result includes a signal to interference plus noise ratio and / or a reference signal received power.

[0582] In some examples of any one of FIG. 10 to FIG. 13, the channel state information report is carried in a physical uplink control channel or a physical uplink shared channel.

[0583] The present application can divide the functional modules of the communication device according to the above method examples. For example, each functional module can be divided according to each function, or two or more functions can be integrated into one processing module. The above integrated module can be realized in the form of hardware or in the form of a software functional module. It should be noted that the division of the modules in each embodiment of the present application is illustrative, and is only a logical functional division. Actual implementation can have another division manner.

[0584] Exemplarily, the present application also provides a communication device.

[0585] Please refer to FIG. 14, which is a hardware structure schematic diagram of a communication device provided by an embodiment of the present application.

[0586] The communication device 500 comprises a processor 501, and the processor 501 is coupled with a memory 502. The memory 502 is used to store computer programs or instructions and / or data. The processor 501 is used to execute the computer programs or instructions and / or data stored in the memory 502, so that the method in the foregoing method embodiments is executed.

[0587] Optionally, the processor 501 comprised by the communication device 500 is one or more.

[0588] Optionally, as shown in FIG. 14, the communication device 500 can further comprise the memory 502.

[0589] Optionally, the memory 502 comprised by the communication device 500 can be one or more.

[0590] Optionally, the memory 502 can be integrated with the processor 501 or separately arranged.

[0591] As shown in FIG. 14, the communication device 500 can further comprise a transceiver 503, which is used for signal receiving and / or sending. For example, the processor 501 is used to control the transceiver 503 to perform signal receiving and / or sending.

[0592] As a kind of scheme, the communication device 500 is used to implement the operation executed by terminal equipment or network equipment in the foregoing method embodiments.

[0593] For example, the processor 501 is used to implement the processing-related operation executed by terminal equipment or network equipment in the foregoing method embodiments, and the transceiver 503 is used to implement the transceiving-related operation executed by terminal equipment or network equipment in the foregoing method embodiments.

[0594] As another kind of scheme, the communication device 500 is used to implement the operation executed by terminal equipment or network equipment in the foregoing method embodiments.

[0595] For example, the processor 501 is configured to implement the processing-related operations of the terminal device or the network device in the foregoing method embodiments, and the transceiver 503 is configured to implement the transceiving-related operations of the terminal device or the network device in the foregoing method embodiments.

[0596] In the communication apparatus shown in FIG. 14, the device for receiving power in the transceiver 503 can be regarded as a receiving unit, and the device for transmitting in the transceiver 503 can be regarded as a transmitting unit. That is, the transceiver 503 can include a receiver and a transmitter. The transceiver 503 can also be referred to as a transceiver, a transceiving unit, or a transceiving circuit, etc. The receiver can also be referred to as a receiver, a receiving unit, a receiver, or a receiving circuit, etc. The transmitter can also be referred to as a transmitter, a transmitting unit, a transmitter, or a transmitting circuit, etc. The processor 501 has a processing function, and the processor 501 can be referred to as a processing unit. The memory 502 is configured to store computer program codes and data, and the memory 502 can also be referred to as a storage unit.

[0597] Exemplarily, the present application also provides a communication apparatus.

[0598] The communication apparatus 500 can be a terminal device or a network device, or a chip of the terminal device or the network device. The communication apparatus 500 can be configured to perform the operations of the terminal device or the network device in the foregoing method embodiments.

[0599] Please refer to FIG. 15, which shows a hardware structure schematic diagram of a communication apparatus according to an embodiment of the present application.

[0600] The communication apparatus 600 includes a 610 part, a 620 part, and a 630 part. The 610 part is mainly configured to perform baseband processing, control a base station, etc. The 610 part is usually the control center of the base station, and can be referred to as a processor or a processing unit, and is configured to control the terminal device or the network device to perform the processing operations of the terminal device or the network device in the foregoing method embodiments. The 620 part is mainly configured to store computer program codes and data, and can be referred to as a memory or a storage unit. The 630 part is mainly configured to perform transceiving of radio frequency signals and conversion between radio frequency signals and baseband signals. The 630 part can be referred to as a transceiving unit, a transceiver, a transceiving circuit, or a transceiver, etc. The transceiving unit of the 630 part can also be referred to as a transceiver, etc., and includes an antenna 633 and a radio frequency circuit (not shown in the figure), wherein the radio frequency circuit is mainly configured to perform radio frequency processing. Optionally, the device for receiving in the 630 part can be regarded as a receiver, and the device for transmitting in the 630 part can be regarded as a transmitter, that is, the 630 part includes a receiver 632 and a transmitter 631. The receiver can also be referred to as a receiving unit, a receiver, or a receiving circuit, etc., and the transmitter can be referred to as a transmitting unit, a transmitting unit, a transmitter, or a transmitting circuit, etc.

[0601] The 610 part and the 620 part can include one or more single boards, each of which can include one or more processors and one or more memories. The processors are configured to read and execute programs in the memories to implement baseband processing functions and control the base station. If there are multiple single boards, the single boards can be interconnected to enhance processing capability. As an optional implementation, the multiple single boards can also share one or more processors, or share one or more memories, or share one or more processors and one or more memories at the same time.

[0602] In an implementation, the transceiver of the 630 part is configured to perform the transceiving-related processes performed by the terminal device or the network device in the embodiments shown in FIGs. 1-9. The processor of the 610 part is configured to perform the processing-related processes performed by the terminal device or the network device in the embodiments shown in FIGs. 1-9.

[0603] It should be understood that FIG. 15 is merely an example and not a limitation, and the terminal device or the network device including the processor, the memory and the transceiver described above can not depend on the structure shown in FIG. 15.

[0604] When the communication apparatus 600 is a chip, the chip includes a transceiver, a memory and a processor. The transceiver can be an input / output circuit, a communication interface; the processor is a processor or a microprocessor or an integrated circuit integrated on the chip. The transmitting operation of the terminal device or the network device in the method embodiments described above can be understood as the output of the chip, and the receiving operation of the terminal device or the network device in the method embodiments described above can be understood as the input of the chip.

[0605] For example, the computer program is executed by a computer, so that the computer can implement the method performed by the terminal device or the method performed by the network device in the method embodiments described above.

[0606] For example, the computer program is executed by a computer, so that the computer can implement the method performed by the terminal device or the method performed by the network device in the method embodiments described above.

[0607] For example, the computer program is executed by a computer, so that the computer can implement the method performed by the terminal device or the method performed by the network device in the method embodiments described above.

[0608] For example, the computer program is executed by a computer, so that the computer can implement the method performed by the terminal device or the method performed by the network device in the method embodiments described above.

[0609] Exemplarily, the application also provides a chip device comprising a processor, which is configured to invoke computer degrees or computer instructions stored in the memory to make the processor execute the method of the above-mentioned embodiments.

[0610] In a possible implementation, the input of the chip device corresponds to the receiving operation in the above-mentioned embodiments of FIG. 1-FIG. 9, and the output of the chip device corresponds to the sending operation in the above-mentioned embodiments of FIG. 1-FIG. 9.

[0611] Optionally, the processor is coupled with the memory through an interface.

[0612] Optionally, the chip device further comprises a memory, in which computer degrees or computer instructions are stored.

[0613] The processor mentioned in any of the above can be a general central processing unit, a microprocessor, an application-specific integrated circuit (ASIC), or one or more integrated circuits for controlling the execution of the program of the reference signal processing method of the above-mentioned embodiments. The memory mentioned in any of the above can be a read-only memory (ROM) or other type of static storage device that can store static information and instructions, a random access memory (RAM), etc.

[0614] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the explanation and beneficial effects of the related content in any of the above-mentioned communication devices can refer to the corresponding method embodiments provided in the foregoing, which will not be repeated here.

[0615] In the present application, the terminal device or the network device can include a hardware layer, an operating system layer running on the hardware layer, and an application layer running on the operating system layer. The hardware layer can include a central processing unit (CPU), a memory management unit (MMU), a memory (also known as main memory), and other hardware. The operating system of the operating system layer can be any one or more computer operating systems that implement business processing through processes, such as Linux operating system, Unix operating system, Android operating system, iOS operating system, or windows operating system, etc. The application layer can include browsers, address books, word processing software, instant messaging software, etc.

[0616] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the system, device and unit described above can refer to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0617] In several embodiments provided in the present application, it should be understood that the disclosed system, device and method can be implemented in other ways. For example, the device embodiments described above are only schematic, for example, the division of units is only a logical function division, and actual implementation can have another division manner, for example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the units shown or discussed can be indirect coupling or communication connection through some interface, device or unit, and can be electrical, mechanical or other forms.

[0618] The units described as separate components can or can not be physically separate, and the components shown as units can or can not be physical units, that is, can be located in one place, or can be distributed on a plurality of network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the embodiment scheme.

[0619] In addition, each functional unit in each embodiment of the present application can be integrated in one processing unit, or each unit can be physically present separately, or two or more units can be integrated in one unit. The integrated unit can be realized in the form of hardware or in the form of a software functional unit.

[0620] If the integrated unit is realized in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium. Based on this understanding, the technical solutions of the present application essentially contribute to the part or the whole or part of the technical solutions in the form of a software product, which is stored in a storage medium, including a plurality of instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the processes of the embodiments of the present application. The foregoing storage medium includes: U disk, mobile hard disk, read-only memory, random access memory, magnetic disk or optical disk and various program code storage media.

[0621] The above, the above examples are only used to illustrate the technical solutions of the application, rather than limit them; although the application is described in detail with reference to the foregoing examples, those skilled in the art should understand that the technical solutions recorded in the foregoing examples can still be modified, or some technical features therein can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the application.

Claims

A communication method characterized by comprising: The method is applied to a terminal device, and the method comprises: When a triggering condition is met, sending a channel state information report to a network device; The triggering condition comprises that a second measurement result is better than a first measurement result; The first measurement result is used to indicate a measurement result of a first reference signal, and the second measurement result is used to indicate a measurement result of a second reference signal, the first reference signal is contained in first measurement resources, and the second reference signal is contained in second measurement resources; A cell corresponding to a reference signal in the first measurement resources comprises a serving cell; A cell corresponding to a reference signal in the second measurement resources comprises a serving cell and / or a non-serving cell; The channel state information report is used to at least indicate the second measurement result. The method of claim 1, wherein The method further comprises: Receiving first configuration information sent by the network device; The first configuration information is used to indicate transmission power information of a reference signal transmitted by the network device in the second measurement resources and transmission power information of a reference signal transmitted by the network device in the first measurement resources. The method according to claim 1 or 2, characterized in that The method further comprises: Receiving first indication information sent by the network device; The first indication information is used to indicate third measurement resources; a reference signal in the third measurement resources comprises at least one reference signal in the second measurement resources; The second reference signal is contained in the third measurement resources. The method according to claim 1 or 2, characterized in that The method further comprises: Receiving second configuration information sent by the network device; the second configuration information comprises a correspondence relationship between a reference signal in fourth measurement resources and a reference signal in the second measurement resources; the reference signal in the fourth measurement resources at least comprises the first reference signal; According to the correspondence relationship and the first reference signal, fifth measurement resources are determined from the second measurement resources; a reference signal in the fifth measurement resources comprises at least one reference signal in the second measurement resources; The second reference signal is contained in the fifth measurement resources. According to any one of claims 1-4, the method further comprises: Receiving second indication information sent by the network device; the second indication information is used to instruct the terminal device to send a measurement result of the first reference signal; Sending a channel state information report to a network device comprises: according to the second indication information, sending the channel state information report to the network device, the channel state information report being used to indicate the first measurement result and the second measurement result. According to any one of claims 1-4, the method further comprises: Receiving third indication information sent by the network device; the third indication information is used to instruct the terminal device to send a measurement result of a reference signal of a serving cell in the second measurement resources; Sending a channel state information report to a network device comprises: according to the third indication information, sending the channel state information report to the network device, the channel state information report being further used to indicate a measurement result of a reference signal of a serving cell in the second measurement resources. ​ ​ The method according to any one of claims 1-6, characterized in that In a case where a trigger condition is met, a channel state information report is sent to a network device, including: In a case where a number of times that the second reference signal meets the trigger condition is greater than a first number of times, the channel state information report is sent to the network device; Or, in a case where a number of times that the second reference signal meets the trigger condition within a first time window is greater than a second number of times, the channel state information report is sent to the network device; Or, in a case where a total number of times that the second reference signal and a reference signal belonging to a same cell as the second reference signal meet the trigger condition is greater than a third number of times, the channel state information report is sent to the network device; Or, in a case where a total number of times that the second reference signal and a reference signal belonging to a same cell as the second reference signal meet the trigger condition within a second time window is greater than a fourth number of times, the channel state information report is sent to the network device. A communication method characterized by comprising: The method is applied to a network device, and the method includes: Receiving a channel state information report sent by a terminal device; The channel state information report is sent by the terminal device in a case where a trigger condition is met; The trigger condition includes that a second measurement result is better than a first measurement result; The first measurement result is used to indicate a measurement result of a first reference signal, and the second measurement result is used to indicate a measurement result of a second reference signal; the first reference signal is contained in first measurement resources, and the second reference signal is contained in second measurement resources; A cell corresponding to a reference signal in the first measurement resources includes a serving cell; A cell corresponding to a reference signal in the second measurement resources includes a serving cell and / or a non-serving cell; The channel state information report is used to at least indicate the second measurement result. The method of claim 8, wherein The method further includes: Sending first configuration information to the terminal device; The first configuration information is used to indicate transmission power information of a reference signal in the second measurement resources and transmission power information of a reference signal in the first measurement resources. The method according to claim 8 or 9, characterized in that The method further includes: Sending first indication information to the terminal device; The first indication information is used to indicate third measurement resources; a reference signal in the third measurement resources includes at least one reference signal in the second measurement resources; The second reference signal is contained in the third measurement resources. The method according to claim 8 or 9, characterized in that The method further includes: Sending second configuration information to the terminal device; the second configuration information includes a correspondence relationship between a reference signal in fourth measurement resources and a reference signal in the second measurement resources; the reference signal in the fourth measurement resources includes at least the first reference signal; the terminal device determines fifth measurement resources from the second measurement resources according to the correspondence relationship and the first reference signal; a reference signal in the fifth measurement resources includes at least one reference signal in the second measurement resources; and the second reference signal is contained in the fifth measurement resources. The method according to any one of claims 8-11, wherein The method further includes: sending second indication information to the terminal device, the second indication information being used to instruct the terminal device to send the first measurement result; receiving a channel state information report sent by the terminal device, including: receiving the channel state information report sent by the terminal device according to the second indication information, the channel state information report being used to instruct the first measurement result and the second measurement result. The method according to any one of claims 8-11, wherein The method further comprises: sending third indication information to the terminal device, the third indication information being used to instruct the terminal device to send a measurement result of a reference signal of a serving cell in the second measurement resource; receiving a channel state information report sent by the terminal device, including: receiving the channel state information report sent by the terminal device according to the third indication information, the channel state information report being used to instruct the measurement result of the reference signal of the serving cell in the second measurement resource. The method according to any one of claims 1-13, characterized in that The trigger condition includes that the second measurement result is better than the first measurement result, including: The second measurement result is greater than the first measurement result, and a difference between the second measurement result and the first measurement result is greater than a set value. The method according to claim 14, wherein The set value is related to transmission power information of the second reference signal, transmission power information of the first reference signal, and a threshold value; or The first measurement result is a result of actually measuring the first reference signal and scaling the result according to the transmission power information of the first reference signal; The second measurement result is a result of actually measuring the second reference signal and scaling the result according to the transmission power information of the second reference signal; The set value is a threshold value. The method according to claim 15, wherein The threshold value is configured by the network device; or The threshold value is predefined. The method according to claim 15 or 16, wherein The second measurement resource includes reference signals of multiple cells, the reference signals in a same cell correspond to a same threshold value, and the reference signals in different cells correspond to different threshold values. The method according to any one of claims 15-17, wherein When a cell corresponding to the reference signal in the first measurement resource is a serving cell, the threshold value is a first value; when the cell corresponding to the reference signal in the first measurement resource is a non-serving cell, the threshold value is a second value. The method according to any one of claims 1-18, wherein The channel state information report at least includes the second measurement result and an identifier of the second reference signal corresponding to the second measurement result. The method according to claim 19, wherein When the channel state information report includes multiple measurement results, the second measurement result is represented by an absolute measurement value, and remaining measurement results are represented by differential measurement values, the differential measurement value being a difference between a measurement result of a reference signal corresponding to the remaining measurement result and the second measurement result. ​ The method according to claim 19 or 20, wherein In the channel state information report, the measurement result of the reference signal belonging to the same cell as the second reference signal has a higher priority than the measurement result of the reference signal of another cell. The method according to any one of claims 19-21, wherein The channel state information report further comprises the first measurement result. The method according to claim 22, wherein In the channel state information report, the measurement result of the reference signal belonging to the same cell as the first reference signal has a lower priority than the measurement result of the reference signal of another cell. A communication method characterized by comprising: The method is applied to a terminal device, and the method comprises: sending, to a network device, a channel state information report, the channel state information report comprising a second measurement result of a second reference signal, and a third measurement result of a third reference signal; the second measurement result has a higher priority than the third measurement result; the second reference signal satisfies a triggering condition, and the third reference signal does not satisfy the triggering condition. A communication method characterized by comprising: The method is applied to a network device, and the method comprises: receiving, from a terminal device, a channel state information report, the channel state information report comprising a second measurement result of a second reference signal, and a third measurement result of a third reference signal; the second measurement result has a higher priority than the third measurement result; the second reference signal satisfies a triggering condition, and the third reference signal does not satisfy the triggering condition. The method according to claim 24 or 25, characterized in that The second measurement result is represented by an absolute measurement value, and the third measurement result is represented by a differential measurement value, which is a difference between the third measurement result and the second measurement result. The method according to any one of claims 24-26, characterized in that In the channel state information report, the measurement result of the reference signal belonging to the same cell as the second reference signal has a higher priority than the measurement result of the reference signal of another cell different from the cell where the second reference signal is located. The method according to any one of claims 24-27, characterized in that The channel state information report further comprises an identifier of the second reference signal and an identifier of the third reference signal. The method according to any one of claims 24-28, characterized in that The triggering condition comprises that the second measurement result is better than the first measurement result; The first measurement result is used to indicate a measurement result of a first reference signal. The method according to claim 29, wherein The first reference signal is a reference signal of a serving cell; The second reference signal is a reference signal of a serving cell or a non-serving cell; The third reference signal is a reference signal of a serving cell or a non-serving cell. The method according to any one of claims 1-30, characterized in that The measurement result comprises a signal to interference plus noise ratio and / or a reference signal received power. The method according to any one of claims 1-31, characterized in that The channel state information report is carried in a physical uplink control channel or a physical uplink shared channel. A communication device characterized by comprising: comprise: a module for performing the method according to any one of claims 1-7, 14-23, 31-32. and / or means for performing the method of any one of claims 8-23, 31-32; and / or means for performing the method of any one of claims 24, 26-32; and / or means for performing the method of any one of claims 25-32. A communication device characterized by comprising: comprising: at least one processor and interface circuitry for receiving signals from and transmitting signals to other communication devices other than the communication device, the processor being configured to implement the method of any one of claims 1-7, 14-23, 31-32 by logic circuitry or by executing software code instructions; and / or the processor being configured to implement the method of any one of claims 8-23, 31-32 by logic circuitry or by executing software code instructions; and / or the processor being configured to implement the method of any one of claims 24, 26-32 by logic circuitry or by executing software code instructions; and / or the processor being configured to implement the method of any one of claims 25-32 by logic circuitry or by executing software code instructions. A computer-readable storage medium, characterized by, comprising computer program or instructions which, when executed on a computer, cause the computer to perform the method of any one of claims 1-7, 14-23, 31-32; and / or cause the computer to perform the method of any one of claims 8-23, 31-32; and / or cause the computer to perform the method of any one of claims 24, 26-32; and / or cause the computer to perform the method of any one of claims 25-32. A chip characterized by comprising: interface circuitry for receiving signals from and transmitting signals to other chips other than the chip, and logic circuitry configured to implement the method of any one of claims 1-7, 14-23, 31-32; and / or the logic circuitry being configured to implement the method of any one of claims 8-23, 31-32; and / or the logic circuitry being configured to implement the method of any one of claims 24, 26-32; and / or the logic circuitry being configured to implement the method of any one of claims 25-32. A computer program product, characterized by the computer program product comprising computer program or instructions which, when executed on a computer, cause the computer to perform the method of any one of claims 1-7, 14-23, 31-32; and / or cause the computer to perform the method of any one of claims 8-23, 31-32; and / or cause the computer to perform the method of any one of claims 24, 26-32; and / or cause the computer to perform the method of any one of claims 25-32.

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