CN116707730A

CN116707730A - Communication method and device

Info

Publication number: CN116707730A
Application number: CN202210184994.1A
Authority: CN
Inventors: 高君慧; 金黄平
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2022-02-28
Filing date: 2022-02-28
Publication date: 2023-09-05
Also published as: WO2023160254A1

Abstract

A method and apparatus for communication, the method comprising: the method comprises the steps that a first communication device obtains first configuration information, wherein the first configuration information is used for indicating reference signal resources in one or more reference signal resource sets, at least one reference signal resource set in the one or more reference signal resource sets comprises N reference signal resources, and N is a positive integer greater than or equal to 2; the density of each reference signal resource is M, M is a positive number smaller than 0.5, and the density is used for determining the number of resource blocks occupied by the reference signal resource; then, the first communication device performs channel measurement according to the first configuration information to obtain channel state information; finally, the first communication device transmits the channel state information. The method performs channel measurement by a plurality of reference signals with reduced density to obtain Doppler information for determining time-varying characteristics of the channel, so that accurate channel state information can be obtained, and system resource overhead required by reference signal transmission can be reduced.

Description

Communication method and device

Technical Field

The present application relates to the field of communications, and in particular, to a communication method and apparatus.

Background

In a 5G communication system, massive multi-antenna technology (Massive MIMO) plays a vital role in the spectral efficiency of the system. When the MIMO technology is adopted, in order to ensure good communication performance between the terminal device and the base station, the terminal device needs to feed back channel state information (channel state information, CSI) to the base station.

In the time-varying channel scenario, the CSI fed back by the terminal device to the base station is not matched with the real channel. The terminal equipment can estimate and obtain channel information of a plurality of moments of the channel according to channel state information reference signals (Channel State Information Reference Signaling, CSI-RS) issued by the base station for a plurality of times, then the terminal equipment obtains Doppler information according to the channel information of the moments, the Doppler information can be represented by Doppler frequency of each angle delay of the channel on an angle delay domain, further, the channel at the subsequent moment can be predicted based on the Doppler information, further, the predicted subsequent CSI can be obtained through calculation, and finally, the terminal equipment reports information such as precoding matrix indication (precoding matrix indicator, PMI) of the predicted channel to the base station according to the predicted CSI; or the terminal equipment compresses and transmits the channel information of the channel at a plurality of moments to the base station, and the base station obtains Doppler frequency according to the CSI so as to predict the subsequent channel. However, the base station centrally transmits CSI-RS at a plurality of times to predict the subsequent channel, which increases the overhead of system resources for transmitting CSI-RS.

Therefore, it is needed to propose a communication method, which not only can ensure to acquire accurate channel state information, but also can reduce the overhead of system resources in a channel time-varying scene.

Disclosure of Invention

A communication method and apparatus performs channel measurement by reducing a density of a plurality of reference signals to obtain Doppler information for determining time-varying characteristics of a channel, thereby not only obtaining accurate channel state information but also reducing system resource overhead required for transmitting the reference signals.

In a first aspect, the present application provides a communication method, which may be performed by a first communication apparatus, where the first communication apparatus may be a terminal device or a chip, and this is not limited to this. The method specifically comprises the following steps: the method comprises the steps that a first communication device obtains first configuration information, wherein the first configuration information is used for indicating reference signal resources in one or more reference signal resource sets, at least one reference signal resource set in the one or more reference signal resource sets comprises N reference signal resources, and N is a positive integer greater than or equal to 2; the density of each reference signal resource is M, M is a positive number smaller than 0.5, and the density is used for determining the number of resource blocks occupied by the reference signal resource; the first communication device performs channel measurement according to the first configuration information to obtain channel state information; the first communication device transmits the channel state information.

The first communication device is used as a receiving end of the reference signal, and can receive corresponding N reference signals (i.e. the transmitting end transmits N reference signals) from the transmitting end according to N (i.e. at least two or more) reference signal resources included in the reference signal resource set; then, the first communication device performs channel measurement based on the N reference signals to obtain channel information of N moments; and secondly, the first communication device can acquire Doppler information for determining the time-varying characteristics of the channel based on the N time channel information, and further can accurately predict the channel state information of the subsequent channel according to the Doppler information. And the density of each reference signal resource is less than 0.5, so that the reference signal occupies a more sparse resource block, thereby reducing the system resource overhead required by transmitting the reference signal, saving the resource block which can be used for transmitting more reference signals, and improving the utilization rate of the resource block.

In one possible implementation, the M is equal to 0.25 or the M is equal to 0.125.

By the implementation mode, the CSI-RS occupies more sparse resource blocks, so that system resource overhead required by transmitting the CSI-RS is reduced, the saved resource blocks can be used for transmitting more reference signals, and the utilization rate of the resource blocks is improved.

In a possible implementation manner, the first configuration information is further used to indicate a first offset, where the first offset is used to indicate an offset of a starting resource block occupied by the reference signal resource relative to a reference resource block.

By means of the implementation mode, when the density of each reference signal resource is determined, the position of each reference signal resource occupying a resource block and the number of the resource blocks can be accurately indicated by combining the first offset of each reference signal resource.

In one possible implementation manner, the first offsets corresponding to the N reference signal resources are all the same; or the first offset corresponding to the N reference signal resources is partially the same; or the first offsets corresponding to the N reference signal resources are different.

By the implementation mode, the resource block occupied by the reference signal resource can be flexibly configured, so that the resource block is utilized as efficiently as possible, and further the resource overhead of the CSI-RS can be reduced.

In one possible implementation, the N reference signal resources occupy resource blocks uniformly.

By the implementation mode, the utilization rate of each resource block can be guaranteed, and further the resource overhead of the CSI-RS can be reduced.

In a possible implementation manner, the first configuration information is further used for indicating a period corresponding to the reference signal resource and a second offset, where the second offset is used for indicating an offset of a time slot occupied by the reference signal resource relative to a reference time slot, a value range of the second offset is 0 to a period corresponding to the reference signal resource, periods corresponding to the N reference signal resources are all the same, and the second offset corresponding to the first reference signal resource to the second offset corresponding to the nth reference signal resource are increased at equal intervals.

It should be noted that the periods and the second offsets corresponding to the N reference signal resources may be configured by a reference signal resource period and an offset CSI-resource allocation offset parameter corresponding to the reference signal resources.

By the implementation manner, the second communication device can receive the N reference signals according to the same period, continuous time intervals or regular time intervals, so that the accuracy of Doppler information obtained by the second communication device according to the N reference signals can be ensured.

In a possible implementation manner, the first configuration information is further used to indicate quasi co-location (QCL) sources corresponding to the reference signal resources, where QCL sources corresponding to the N reference signal resources are all the same; or the first configuration information is further used for indicating the type of quasi co-located QCL corresponding to the reference signal resource, and the types of QCLs corresponding to the N reference signal resources are all the same.

Illustratively, the transmission configuration indication status identifiers (TCI-StateId) corresponding to the N reference signal resources are the same.

By the implementation mode, the antenna ports for transmitting the N reference signals are the same or the antenna types are the same, so that the accuracy of the obtained channel state channel can be ensured when the second communication device performs channel measurement according to the received N reference signals.

In a second aspect, the present application provides a communication method, which may be performed by a second communication apparatus, where the second communication apparatus may be a network device or a chip, and this is not limited to this. The method specifically comprises the following steps: the second communication device determines first configuration information, wherein the first configuration information is used for indicating reference signal resources in one or more reference signal resource sets, at least one reference signal resource set in the one or more reference signal resource sets comprises N reference signal resources, and N is a positive integer greater than or equal to 2; the density of each reference signal resource is M, M is a positive number smaller than 0.5, and the density is used for determining the number of resource blocks occupied by the reference signal resource; the second communication device transmits the first configuration information.

The second communication device configures the codebook type corresponding to the first configuration information into a mobility codebook, so that the first configuration information is used for indicating reference signal resources in one or more reference signal resource sets, at least one reference signal resource set in the one or more reference signal resource sets comprises at least two reference signal resources, and each reference signal resource is used for transmitting a reference signal once. Therefore, after the first communication device receives the first configuration information, channel measurement can be performed according to at least two reference signals, and further channel state information of a subsequent time-varying channel can be accurately predicted. In addition, the density of each reference signal resource is less than 0.5, so that the reference signal resource occupies a more sparse resource block, thereby reducing the system resource overhead required by transmitting the reference signal, saving the resource block which can be used for transmitting more reference signals, and improving the utilization rate of the resource block.

In a possible implementation manner, the first configuration information is further used for indicating quasi co-located QCL sources corresponding to the reference signal resources, where QCL sources corresponding to the N reference signal resources are all the same; or the first configuration information is further used for indicating the type of quasi co-located QCL corresponding to the reference signal resource, and the types of QCLs corresponding to the N reference signal resources are all the same.

Illustratively, the transmission configuration indication status identifiers TCI-StateId corresponding to the N reference signal resources are the same.

Technical effects of possible implementation manners in the second aspect may be referred to correspondingly technical effects of possible implementation manners in the first aspect, which are not described in detail herein.

In a third aspect, an embodiment of the present application further provides a communication apparatus, where the communication apparatus may be the first communication apparatus of the first aspect, and the communication apparatus may be a terminal device, or may be an apparatus (for example, a chip, or a chip system, or a circuit) in the terminal device, or may be an apparatus that can be used in a matching manner with the terminal device. In a possible implementation manner, the communication device may include modules or units corresponding to each other in a one-to-one manner to perform the method/operation/step/action described in the first aspect, where the modules or units may be hardware circuits, or may be software, or may be implemented by using hardware circuits in combination with software. In a possible implementation manner, the communication device may include a processing unit and a transceiver unit. The processing unit is used for calling the receiving and/or transmitting unit to execute the receiving and/or transmitting function.

In one possible implementation manner, the communication device comprises a transceiver module and a processing module; the transceiver module is configured to obtain first configuration information, where the first configuration information is used to indicate reference signal resources in one or more reference signal resource sets, at least one reference signal resource set in the one or more reference signal resource sets includes N reference signal resources, and N is a positive integer greater than or equal to 2; the density of each reference signal resource is M, M is a positive number smaller than 0.5, and the density is used for determining the number of resource blocks occupied by the reference signal resource; the processing module is used for carrying out channel measurement according to the first configuration information to obtain channel state information; the transceiver module is further configured to send the channel state information.

In a fourth aspect, an embodiment of the present application further provides a communication apparatus, which may be the second communication apparatus of the second aspect, and the communication apparatus may be a network device, or may be an apparatus (for example, a chip, or a chip system, or a circuit) in the network device, or may be an apparatus that can be used in a matching manner with the network device. In a possible implementation manner, the communication device may include modules or units corresponding to each other in a one-to-one manner to perform the method/operation/step/action described in the second aspect, where the modules or units may be hardware circuits, or software, or a combination of hardware circuits and software implementation. In a possible implementation manner, the communication device may include a processing unit and a transceiver unit. The processing unit is used for calling the receiving and/or transmitting unit to execute the receiving and/or transmitting function.

In one possible implementation manner, the communication device comprises a transceiver module and a processing module; the processing module is configured to determine first configuration information, where the first configuration information is used to indicate reference signal resources in one or more reference signal resource sets, at least one reference signal resource set in the one or more reference signal resource sets includes N reference signal resources, and N is a positive integer greater than or equal to 2; the density of each reference signal resource is M, M is a positive number smaller than 0.5, and the density is used for determining the number of resource blocks occupied by the reference signal resource; the transceiver module is configured to send the first configuration information.

Illustratively, the transmission configuration indication status identifiers TCI-State Id corresponding to the N reference signal resources are the same.

In a fifth aspect, the present application provides a communication device comprising: a processor coupled to the memory. The memory has stored therein a computer program or computer instructions for invoking and running the computer program or computer instructions stored in the memory to cause the processor to implement as in the first aspect or any one of the possible implementations of the second aspect.

Optionally, the communication device further comprises the above memory. In the alternative, the memory and processor are integrated.

Alternatively, the communication means may be a device, a chip or a system-on-chip.

Optionally, the communication device further comprises a transceiver, and the processor is used for controlling the transceiver to transmit and receive signals and/or information and/or data, etc.

In a sixth aspect, the present application is embodied in a communication device that includes a processor. The processor is configured to invoke a computer program or computer instructions in a memory such that the processor implements as in the first aspect or any of the possible implementations of the first aspect or the processor is configured to perform as in the second aspect or any of the possible implementations of the second aspect.

In a seventh aspect, the present implementations provide a communication apparatus comprising a processor for performing as in the first aspect or any one of the possible implementations of the first aspect, or for performing as in the second aspect or any one of the possible implementations of the second aspect. Alternatively, the communication means may be a device, a chip or a system-on-chip.

In an eighth aspect, implementations of the application also provide a computer program product comprising instructions which, when run on a computer, cause the computer to perform as or any of the possible implementations of the first aspect or the second aspect.

In a ninth aspect, the present implementations also provide a computer-readable storage medium comprising computer instructions which, when run on a computer, cause the computer to perform any one of the possible implementations of the first aspect or the first aspect, or cause the computer to perform any one of the possible implementations of the second aspect or the second aspect.

In a tenth aspect, the present application further provides a chip apparatus, comprising a processor for invoking a computer program or computer instructions in the memory to cause the processor to perform any one of the possible implementations as described above in the first aspect or the first aspect, or to cause the processor to perform any one of the possible implementations as described above in the second aspect or the second aspect.

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

The technical effects achieved by the third aspect or any possible implementation manner of the third aspect may be described with reference to the technical effects achieved by the first aspect or any possible implementation manner of the first aspect; the technical effects achieved by the foregoing fourth aspect or any one of the possible implementation manners of the fourth aspect may be described with reference to the technical effects achieved by the foregoing second aspect or any one of the possible implementation manners of the second aspect; the technical effects achieved by the fifth to tenth aspects may be described with reference to the technical effects achieved by the first or second aspects, and the detailed description is not repeated here.

Drawings

Fig. 1 is a basic flow chart of transmitting channel state information CSI between a base station and a terminal device according to an embodiment of the present application;

fig. 2 is a schematic diagram of a channel state information CSI expiration provided in an embodiment of the present application;

FIG. 3 is a diagram illustrating the transmission of predicted time-varying channel state information;

fig. 4 is a schematic diagram of a communication system to which a communication method according to an embodiment of the present application may be applied;

FIG. 5 is an interactive schematic diagram of a communication method according to an embodiment of the present application;

Fig. 6 is a schematic diagram of a resource block occupied by a reference signal resource in an embodiment of the present application;

fig. 7 is a schematic diagram of another resource block occupied by a reference signal resource provided in an embodiment of the present application;

fig. 8 is a schematic structural diagram of a communication device according to an embodiment of the present application;

fig. 9 is a schematic structural diagram of another communication device according to an embodiment of the present application;

fig. 10 is a simplified schematic diagram of a chip according to an embodiment of the present application.

Detailed Description

The embodiments of the present application provide a communication method and apparatus, where the method and apparatus are based on the same or similar technical ideas, and because the principles of solving the problems by the method and apparatus are similar, the implementation of the apparatus and the method may be referred to each other, and the repetition is omitted.

In order to facilitate understanding of the technical solution of the embodiments of the present application, a basic flow for transmitting channel state information CSI between a base station and a terminal device is first described briefly below.

Referring to fig. 1, the basic flow is as follows: step one: the base station sends configuration information of channel measurement to the terminal equipment, wherein the configuration information is used for configuring the channel measurement and notifying the terminal equipment of time and behavior of the channel measurement; step two: the base station transmits a channel state information reference signal (channel state information reference signaling, CSI-RS) to the terminal device, the CSI-RS being used for channel measurement; step three: the terminal equipment performs channel measurement according to the CSI-RS to obtain final Channel State Information (CSI); step four: the terminal equipment sends the CSI to a base station, and the base station receives the CSI; step five: and the base station transmits data according to the CSI. For example, the CSI may include one or more of a channel Rank Indicator (RI) and a channel status indicator (channel quality indicator, CQI), a precoding matrix indicator (precoding matrix indicator, PMI), etc., and the base station may determine the number of streams of the transmission data of the terminal device according to the channel rank indicator RI fed back by the terminal device; the base station can also determine the modulation order of data transmitted to the terminal equipment and the code rate of channel coding according to the channel state indication CQI fed back by the terminal equipment; in addition, the base station can also determine precoding of the terminal equipment transmission data according to the precoding matrix indication PMI fed back by the terminal equipment.

In general, the base station assumes that precoding determined according to a precoding matrix indication PMI fed back by the terminal device remains unchanged in a CSI reporting period. The CSI expiration problem exists in the CSI scheme in which the base station acquires the channel. CSI expiration mainly includes two influencing factors, and can be shown with reference to fig. 2, specifically including the following:

(1) Time delay t of CSI validation ₁ : the base station transmits the downlink CSI-RS to the terminal equipment to feed back the time delay between the uplink CSI, and the time delay existing in the process of calculating and using the precoding matrix by the base station.

Thus, there is a delay from the real channel CSI already after CSI reporting, t when the channel is time-varying ₁ Can cause CSI to expire, causing performance degradation.

(2) Channel time-variant t2: the base station continues to use the precoding matrix calculated by the latest reported CSI during the CSI feedback period, i.e. the constant P0 is fixed during the t2 period. However, when the channel is time-varying, the CSI obtained by the base station expires, which results in mismatching of the precoding matrix calculated by the base station with the real channel, and thus in degradation of transmission performance.

Therefore, in the channel time-varying scene, due to the above influencing factors, the CSI fed back by the terminal device to the base station is not matched with the real channel. The current effective solution is shown in fig. 3, a base station may continuously and repeatedly issue CSI-RS to a terminal device, the terminal device estimates and obtains channel information of multiple times of the channel according to the repeatedly issued CSI-RS, then the terminal device obtains doppler information according to the channel information of the multiple times, the doppler information may be represented by doppler frequency of each angle delay of the channel in an angle delay domain, further, a channel at a subsequent time may be predicted based on the doppler information, and further, a predicted subsequent CSI may be obtained by calculation, and finally the terminal device reports information such as a precoding matrix indication PMI of the predicted channel to the base station according to the predicted CSI; or the terminal equipment compresses and transmits the channel information of the channel at a plurality of moments to the base station, and the base station obtains Doppler frequency according to the CSI so as to predict the subsequent channel. However, predicting the subsequent channel by the base station centrally issuing CSI-RS at multiple times increases the overhead of system resources for transmitting CSI-RS.

Accordingly, in the present application there is provided a method of communication, the method comprising: the method comprises the steps that a first communication device obtains first configuration information, wherein the first configuration information is used for indicating reference signal resources in one or more reference signal resource sets, at least one reference signal resource set in the one or more reference signal resource sets comprises N reference signal resources, and N is a positive integer greater than or equal to 2; the density of each reference signal resource is M, M is a positive number smaller than 0.5, and the density is used for determining the number of resource blocks occupied by the reference signal resource; then, the first communication device performs channel measurement according to the first configuration information to obtain channel state information; finally, the first communication device transmits the channel state information. The method performs channel measurement by a plurality of reference signals with reduced density to obtain Doppler information for determining time-varying characteristics of the channel, so that accurate channel state information can be obtained, and system resource overhead required by reference signal transmission can be reduced.

The technical scheme of the application can be applied to a third generation partnership project (3rd generation partnership project,3GPP) related cellular system, such as a fourth generation (4th generation,4G) communication system, such as a long term evolution (long term evolution, LTE) system, a fifth generation (5th generation,5G) communication system, such as a New Radio (NR) system, or a 5G later evolution communication system, such as a sixth generation (6th generation,6G) communication system, and can also be applied to a narrowband internet of things (narrow band-internet of things, NB-IoT), a satellite communication system, a wireless fidelity (wireless fidelity, wiFi) system, and a communication system supporting fusion of multiple wireless technologies.

The communication system applicable to the application comprises a first communication device and a second communication device, wherein the first communication device can be used as a transmitting end or a receiving end, and the second communication device can also be used as the transmitting end or the receiving end. The first communication means may be a terminal device and the second communication means may be a network device. Alternatively, the first communication device may be a terminal device, and the second communication device may also be a terminal device, which is not limited by the present application.

The terminal device is a device having a wireless connection function and capable of providing voice and/or data connectivity to a user, and may be referred to as a station, a User Equipment (UE), a Mobile Station (MS), a Mobile Terminal (MT), a wireless communication device, and the like.

A terminal device is a device that includes wireless communication functionality (providing voice/data connectivity to a user). For example, a handheld device having a wireless connection function, an in-vehicle device, or the like.

The terminal device may also be a satellite phone, a cellular phone, a smart phone, a wireless data card, a wireless modem, a machine type communication device, a terminal which may be a cordless phone, a session initiation protocol (session initiation protocol, SIP) phone, a wireless local loop (wireless local loop, WLL) station, a personal digital assistant (personal digital assistant, PDA), a handheld device with wireless communication functionality, a computing device or other processing device connected to a wireless modem, a vehicle mounted device, a communication device onboard a high-altitude aircraft, a wearable device, an unmanned aerial vehicle, a robot, a device-to-device (D2D) terminal, a vehicle-to-all (vehicle to everything, V2X) terminal, a Virtual Reality (VR) terminal device, an augmented reality (augmented reality, AR) terminal device, a wireless terminal in an industrial control (industrial control), a wireless terminal in an unmanned (self-driving) device, a wireless terminal in a telemedicine (remote media) device, a wireless terminal in a smart grid (smart carrier) device, a wireless terminal in a smart network (smart carrier) or a smart device in the future, a smart communication device in a smart network of the future, or the like.

In the embodiment of the present application, the device for implementing the function of the terminal device may be the terminal device; or a device, such as a chip system, capable of supporting the terminal device to implement the function. The device can be installed in or matched with the terminal equipment. In the embodiment of the application, the chip system can be composed of chips, and can also comprise chips and other discrete devices.

A network device is a device in a communication system that accesses a terminal device to a wireless network, and may also be referred to as a radio access network (radio access network, RAN) node (or device), a base station, an access point, or the like. The network devices may be 5G base stations, i.e., next generation Node bs (next generation Node B, gNB), transmission and reception points (transmission reception point, TRP), evolved Node bs (enbs), radio network controllers (radio network controller, RNCs), home base stations (e.g., home evolved NodeB, or home Node bs, HNBs), base Band Units (BBUs), wi-Fi access points, or AP controllers (APs), and other interface devices capable of operating in a wireless environment.

The network device may be an evolved Node B (eNB or eNodeB) in LTE; or a next generation node B (next generation node B, gNB) in a 5G network or a base station in a future evolved public land mobile network (public land mobile network, PLMN), a broadband network traffic gateway (broadband network gateway, BNG), a converged switch or a non-third generation partnership project (3rd generation partnership project,3GPP) access device, etc. Optionally, the network device in the embodiment of the present application may include various base stations, for example: macro base stations, micro base stations (also called small stations), relay stations, access points, devices for implementing base station functions in communication systems evolving after 5G, access Points (APs) in WiFi systems, transmitting points (transmitting point, TP), mobile switching centers, and devices-to-devices (D2D), devices for assuming base station functions in vehicle-to-Device (V2X), machine-to-machine (M2M) communication, and the like, and may also include Centralized Units (CUs) and Distributed Units (DUs) in cloud access network (cloud radio access network, C-RAN) systems, network devices in non-terrestrial communication network (non-terrestrial network, NTN) communication systems, i.e., devices that can be deployed on an aerial platform or satellite. The embodiment of the present application is not particularly limited thereto.

In addition, in one network structure, the access point may include a CU node and a DU node. The structure splits the protocol layer of the eNB in the LTE system, the functions of part of the protocol layer are controlled in the CU in a centralized way, and the functions of the rest part or all of the protocol layer are distributed in DUs, so that the CU controls the DUs in a centralized way.

In the embodiment of the present application, the device for implementing the function of the network device may be a network device; or may be a device, such as a system-on-a-chip, capable of supporting the network device to perform this function. The apparatus may be installed in or used in cooperation with a network device. In the embodiment of the application, the chip system can be composed of chips, and can also comprise chips and other discrete devices.

In one possible implementation, the terminal device and the network device may communicate through a null interface (Uu) link between the terminal device and the network device, a non-terrestrial network NTN communication link, and the like, and the terminal device may communicate through a Sidelink (SL) of D2D, and the like. Specifically, the terminal device may be in a connected state or an active state (active), or may be in a non-connected state (inactive) or an idle state (idle), or may be in other states, such as a state in which no network attachment or no downlink synchronization with a network is performed.

Communication can be carried out between the network equipment and the terminal equipment, between the network equipment and between the terminal equipment and the terminal equipment through the authorized spectrum, communication can be carried out through the unlicensed spectrum, and communication can be carried out through the authorized spectrum and the unlicensed spectrum at the same time; communication can be performed through a frequency spectrum of 6 gigahertz (GHz) or less, for example, through 700/900 megahertz (MHz) and 2.1/2.6/3.5GHz bands, communication can be performed through a frequency spectrum of 6GHz or more, for example, millimeter wave and terahertz (THz) wave communication, and communication can be performed using a frequency spectrum of 6GHz or less and a frequency spectrum of 6GHz or more simultaneously. The embodiment of the present application does not particularly limit the spectrum resources used for wireless communication.

In order to facilitate understanding of the technical solution of the embodiment of the present application, a possible communication system to which a communication method provided by the embodiment of the present application is applicable is shown in the following with reference to fig. 4.

Fig. 4 is a schematic diagram of a communication system according to an embodiment of the present application, and as shown in fig. 4, the communication system is composed of a Base station (Base station) and terminal devices UE1 to UE6. In the communication system, UE1 to UE6 may transmit uplink data to a base station, and the base station may receive the uplink data transmitted by UE1 to UE6, respectively. In addition, UEs 4 to 6 may form one communication system. In the communication system, the base station may transmit downlink information to UE1, UE2, UE5, etc.; UE5 may also send downlink information to UEs 4, 6. Therefore, the communication system to which the scheme of the present application is applicable is not limited to various communication systems including the 5G NR system, as long as there is a need to send transmission direction indication information in the communication system, another entity needs to receive the indication information, and determine a transmission direction within a certain time according to the indication information.

In order to facilitate understanding of the technical scheme of the present application, some technical terms related to the present application are described below.

1) Reference signal

The reference signal related in the application is mainly used for measuring a channel to acquire channel state information, specifically, a transmitting end transmits the reference signal through the channel, a receiving end receives the reference signal, and the channel state information is measured and calculated according to the reference signal. The reference signal may be, for example, a channel state information reference signal CSI-RS, or a channel sounding reference signal (sounding reference signal, SRS).

2) Quasi co-location relationship

The quasi-co-located QCL relationship means that the reference signals corresponding to the antenna ports of the reference signals have the same parameters, or the QCL relationship means that the terminal device can determine, according to the parameter of one antenna port, the parameter of another antenna port having the QCL relationship with the antenna port, or the QCL relationship means that the two antenna ports have the same parameter, or the QCL relationship means that the difference of the parameters of the two antenna ports is smaller than a certain threshold. The parameter may be at least one of delay spread, doppler shift, average delay, average gain, angle of arrival (AOA), average AOA, AOA spread, angle of departure (angle of departure, AOD), average angle of departure (AOD), AOD spread, receive antenna spatial correlation parameter, transmit beam, receive beam, and resource identification. The beam includes at least one of: precoding, weight number, beam number. The angle may be a decomposition value of different dimensions, or a combination of decomposition values of different dimensions. The antenna ports are antenna ports with different antenna port numbers, and/or antenna ports with the same antenna port number for information transmission or reception in different time and/or frequency and/or code domain resources, and/or antenna ports with different antenna port numbers for information transmission or reception in different time and/or frequency and/or code domain resources. The resource identifier includes a CSI-RS resource identifier, or an SRS resource identifier, for indicating a beam on a resource.

3) The plural numbers referred to in the embodiments of the present application mean two or more. "and/or", describes an association relationship of an association object, and indicates that there may be three relationships, for example, a and/or B, and may indicate: a exists alone, A and B exist together, and B exists alone. The character "/" generally indicates that the context-dependent object is an "or" relationship. In addition, it should be understood that in the description of the present application, the words "first," "second," and the like are used merely for distinguishing between the descriptions and not for indicating or implying any relative importance or order.

4) The terms "comprising" and "having" and any variations thereof, as used in the description of embodiments of the application, are intended to cover a non-exclusive inclusion. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those listed but may optionally include other steps or elements not listed or inherent to such process, method, article, or apparatus. It should be noted that, in the embodiments of the present application, words such as "exemplary" or "such as" are used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" or "e.g." in an embodiment should not be taken as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "such as" is intended to present related concepts in a concrete fashion.

5) The term "for indication" mentioned in the description of embodiments of the application may include both for direct indication and for indirect indication. When describing that certain indication information is used for indicating A, the indication information may be included to directly indicate A or indirectly indicate A, and does not represent that the indication information is necessarily carried with A.

The information indicated by the indication information is referred to as information to be indicated, and in a specific implementation process, there are various ways of indicating the information to be indicated, for example, but not limited to, the information to be indicated may be directly indicated, such as the information to be indicated itself or an index of the information to be indicated. The information to be indicated can also be indicated indirectly by indicating other information, wherein the other information and the information to be indicated have an association relation. It is also possible to indicate only a part of the information to be indicated, while other parts of the information to be indicated are known or agreed in advance. For example, the indication of the specific information may also be achieved by means of a pre-agreed (e.g., protocol-specified) arrangement sequence of the respective information, thereby reducing the indication overhead to some extent.

The information to be indicated can be sent together as a whole or can be divided into a plurality of pieces of sub-information to be sent separately, and the sending periods and/or sending occasions of the sub-information can be the same or different. Specific transmission method the present application is not limited. The transmission period and/or the transmission timing of the sub-information may be predefined, for example, predefined according to a protocol, or may be configured by the transmitting end device by transmitting configuration information to the receiving end device. The configuration information may include, for example, but not limited to, one or a combination of at least two of radio resource control signaling, medium access control (media access control, MAC) layer signaling, and physical layer signaling. Wherein radio resource control signaling such as packet radio resource control (radio resource control, RRC) signaling; the MAC layer signaling includes, for example, a MAC Control Element (CE); the physical layer signaling includes, for example, downlink control information (downlink control information, DCI).

The technical scheme of the application is described below in connection with specific embodiments.

Fig. 5 is a flow chart of a communication method according to an embodiment of the present application. The communication method may be performed by a transceiver and/or a processor of the first communication device (or may be the second communication device), or may be performed by a chip corresponding to the transceiver and/or the processor. Or the embodiment may also be implemented by a controller or control device to which the first communication apparatus (may also be the second communication apparatus) is connected, the controller or control device being configured to manage at least one device including the first communication apparatus (may also be the second communication apparatus). And the present application is not particularly limited with respect to the specific form of the communication apparatus that performs this embodiment. Referring to fig. 5, the specific flow of the method is as follows:

referring to fig. 5, the specific flow of the method is as follows:

s501: the second communication device transmits the first configuration information.

Optionally, the second communication device is a transmitting end, and the second communication device is a network device, for example, a base station.

Correspondingly, the first communication device acquires the first configuration information.

In the present application, the first communication device may directly acquire the first configuration information from the second communication device, for example, the first communication device may directly acquire the first configuration information from the second communication device, or the first communication device may acquire the first information from the second communication device, where the first information carries the first configuration information. The first communication device may also indirectly obtain the first configuration information from the second communication device, for example, the third communication device may obtain the first configuration information from the second communication device first, and the first communication device may obtain the first configuration information from the third communication device; or the third communication device firstly acquires the first information carrying the first configuration information from the second communication device, and then the first communication device acquires the first configuration information carried by the first information from the third communication device. Therefore, the present application is not limited in particular to the way the first communication device obtains the first configuration information.

Optionally, the first communication device is a receiving end, and the first communication device is a terminal device.

In one embodiment, before the second communication device sends the first configuration information, the method further includes: the second communication device determines the first configuration information. The second communication device determines the first configuration information by what mode, and the application is not limited.

For example, the second communication device may determine the first configuration information from the stored plurality of configuration information. Or the first configuration information is configured and determined in real time by the second communication device according to the actual requirement. Or the first configuration information is determined by other devices and sent to the second communication device.

In addition, for better compatibility with the existing 3GPP protocol specification, a codebook type (codebook type) field may be added in codebook configuration (codebook) information in CSI report configuration information, where the codebook type is different from that in the existing 3GPP protocol specification, for example, may be named typeII-Doppler, typeII-R18 or typeII-Doppler-R18, and the newly added codebook type is used to represent channel information feedback implemented by using the technical scheme of the embodiment of the present application. It should be appreciated that the above codebook types are named as examples, and the embodiment of the present application does not specifically limit the naming of the newly added codebook types. Specifically, the first configuration information is used for indicating reference signal resources in one or more reference signal resource sets, at least one reference signal resource set in the one or more reference signal resource sets includes N reference signal resources, where N is a positive integer greater than or equal to 2; each reference signal resource has a density M, M being a positive number less than 0.5, which is used to determine the number of resource blocks occupied by the reference signal resource.

Alternatively, the reference signal may be a CSI-RS, the set of reference signal resources may be a non-zero-power (NZP) -CSI-RS-resource set, and the reference signal resources may be NZP-CSI-RS-resource.

For example, the density of each reference signal resource may be configured in the corresponding higher layer parameter resource mapping. And the inverse of the density M of the reference signal resources is the number of resource blocks occupied by the reference signal resources.

Alternatively, the M is equal to 0.25 or the M is equal to 0.125.

If the density M of the reference signal resources is equal to 0.25, the number of the resource blocks occupied by the reference signal resources is equal to 4; if the density of the reference signal resources is equal to 0.125, the number of the resource blocks occupied by the reference signal resources is equal to 8.

The density of each reference signal resource is less than 0.5, so that the reference signal resource occupies a more sparse resource block, thereby reducing the system resource cost required by transmitting the reference signal, saving the resources for transmitting more reference signals and improving the utilization rate of the resource block.

In one embodiment, the first configuration information is further used to indicate a first offset, where the first offset is used to indicate an offset of a starting resource block occupied by the reference signal resource relative to a reference resource block.

Wherein the reference resource block (reference resource block, RB) is an initial resource block of the reference signal resource set configuration.

Optionally, the first offsets corresponding to the N reference signal resources are the same; or the first offset corresponding to the N reference signal resources is partially the same; or the first offsets corresponding to the N reference signal resources are different.

In one embodiment, the N reference signal resources occupy resource blocks uniformly. By the embodiment, the frequency of each reference signal resource occupying each resource block can be equal as much as possible, so that the problem that the utilization rate of the resource blocks is low due to uneven use of the resource blocks can be avoided.

In an embodiment, the first configuration information is further used for indicating a period corresponding to a reference signal resource and a second offset, where the second offset is used for indicating an offset of a time slot occupied by the reference signal resource relative to a reference time slot, a value range of the second offset is from 0 to a period corresponding to the reference signal resource, periods corresponding to the N reference signal resources are all the same, and the second offset corresponding to the first reference signal resource to the second offset corresponding to the nth reference signal resource are increased at equal intervals.

Wherein a reference slot may be referred to as a "reference point" and serves as a common "reference point" for other slots, such as the reference slot numbering from 0 in the time domain, the slot numbered 0 being common to all slots in the time domain.

For example, the periods corresponding to the N reference signal resources are T, where T is greater than 0, and the reference time slot is T0, where T0 may or may not be 0. The second offset corresponding to the first reference signal resource is a1, the second offset corresponding to the second reference signal resource is a2, the second offset corresponding to the third reference signal resource is a3 … …, and the second offset corresponding to the Nth reference signal resource is aN; a1, a2, a3 … aN are in the range of 0 to t, and the intervals among a1, a2 and a3 … aN are increased gradually at equal intervals.

For example, when the first configuration information is used to indicate 10 reference signal resources in one reference signal resource set, the period corresponding to each reference signal resource is 200slots, and the second offsets corresponding to the 10 reference signal resources may be {0, 20, 40, 60, 80, 100, 120, 140, 160, 180}, respectively.

The period and the second offset corresponding to each reference signal resource may be configured by a corresponding reference signal resource period and offset CSI-resourcelineodicity and offset parameter.

In one embodiment, the first configuration information is further used for indicating quasi co-located QCL sources corresponding to the reference signal resources, where QCL sources corresponding to the N reference signal resources are all the same; or the first configuration information is further used for indicating the type of quasi co-located QCL corresponding to the reference signal resource, and the types of QCLs corresponding to the N reference signal resources are all the same.

For example, transmission configuration indication status identifiers (TCI-State ids) corresponding to the N reference signal resources may be configured to be the same.

In the embodiment of the present application, the first configuration information may be directly used to indicate reference signal resources in one or more reference signal resource sets; or the first configuration information may be indirectly used to indicate the reference signal resources in the one or more reference signal resource sets, e.g., the first configuration information includes first information therein, where the first information is used to indicate the reference signal resources in the one or more reference signal resource sets. The application is not limited in this regard.

S502: and the first communication device performs channel measurement according to the first configuration information to obtain channel state information.

In one embodiment, after the first communication device obtains the first configuration information, the method further includes: the second communication device transmits a reference signal using a reference signal resource of the one or more reference signal resource sets indicated by the first configuration information. Accordingly, the first communication device may acquire the reference signal transmitted by the second communication device according to the first configuration information, and measure and obtain the channel state information based on the reference signal.

In one embodiment, the first configuration information is used to indicate reference signal resources in one or more reference signal resource sets, at least one of the one or more reference signal resource sets including N reference signal resources, N being a positive integer greater than or equal to 2; the first communication device performs channel measurement according to the first configuration information to obtain channel state information, and the method comprises the following steps: and the first communication device performs channel measurement according to the N reference signal resources included in each reference signal resource set to obtain corresponding channel state information.

Illustratively, the second communication device continuously transmits N reference signals to the first communication device using N reference signal resources included in one reference signal resource set, where one reference signal resource is used to transmit a reference signal once; the first communication device receives the N reference signals, performs calculation according to the N reference signals received to obtain measurement results (e.g., channel information at N times), further, the first communication device obtains doppler information according to the measurement results, predicts a subsequent channel and calculates CSI, and sends the CSI to the second communication device in step S503 described below. Or, the first communication device receives the N reference signals, calculates to obtain measurement results (such as channel information of N times) according to the N reference signals, calculates CSI, and sends the CSI to the second communication device in step S503, and the second communication device obtains doppler information according to the channel information of N times, so as to further predict a subsequent channel.

It should be noted that, the specific process of obtaining CSI through calculation and obtaining doppler information according to the channel information at N times are all in the prior art, and therefore, may be implemented with reference to the prior art, which is not described herein in detail.

S503: the first communication device transmits the channel state information.

Accordingly, the second communication device receives the channel state information. The present application is not particularly limited as to the way by which the second communication device obtains the channel state information.

Optionally, the second communication device is a network device.

Optionally, the second communication device directly acquires the channel state information from the first communication device; or the second communication device indirectly obtains the channel state information from the first communication device, e.g., by a third communication device obtaining the channel state information from the first communication device, and then the second communication device obtaining the channel state information from the third communication device.

In summary, the present application provides a communication method, which includes: the method comprises the steps that a first communication device obtains first configuration information, wherein the first configuration information is used for indicating reference signal resources in one or more reference signal resource sets, at least one reference signal resource set in the one or more reference signal resource sets comprises N reference signal resources, and N is a positive integer greater than or equal to 2; the density of each reference signal resource is M, M is a positive number smaller than 0.5, and the density is used for determining the number of resource blocks occupied by the reference signal resource; then, the first communication device performs channel measurement according to the first configuration information to obtain channel state information; finally, the first communication device transmits the channel state information. The method performs channel measurement by a plurality of reference signals with reduced density to obtain Doppler information for determining time-varying characteristics of the channel, so that accurate channel state information can be obtained, and system resource overhead required by reference signal transmission can be reduced.

The following describes how the densities of N reference signal resources in one reference signal resource set in step S501 are configured in detail by the following two specific embodiments.

In the two embodiments described below, the first communication device is a terminal device, the second communication device is a network device, the reference signal is CSI-RS, N reference signal resources are used to transmit N reference signals, that is, one reference signal resource corresponds to transmitting one reference signal, and the density of the reference signal resources is used to indicate the number of resource blocks RB occupied by the reference signal resource allocation.

Example 1

The network equipment configures N CSI-RS resources (used for transmitting N times of CSI-RS) in the reference signal resource set, wherein the densities of the N CSI-RS resources are the same, and first offsets of the N CSI-RS resources are the same, and the first offsets are used for indicating offsets of initial resource blocks occupied by the CSI-RS resource configuration relative to the reference resource blocks.

Specifically, when the densities of the N CSI-RS resources are all 0.25 and the first offsets are all 0 (i.e., the starting RB positions of each CSI-RS resource in the CSI-RS resource set are the same, that is, the starting RB index of each CSI-RS resource is the same, and the offset relative to the reference resource block is 0), referring to fig. 6, the resource blocks occupied by the N CSI-RS resource configurations may be RB0, RB4, and RB8, respectively, that is, the N CSI-RS are configured on RB0, RB4, and RB8 … …, respectively. It should be noted that, in fig. 6 to fig. 7, a column of hatched portions is taken as an example of CSI-RS resources, and the description is omitted.

After the terminal equipment side obtains the first configuration information, N CSI-RS resources in each resource set can be determined; when the network equipment sends the CSI-RS for N times to the terminal equipment, the terminal equipment can receive the CSI-RS for N times from the network equipment, then, channel measurement is carried out according to the CSI-RS for N times to obtain N channel measurement results (namely, channel state information at N times), and secondly, the terminal equipment obtains Doppler information according to the N channel measurement results; and the terminal equipment predicts the subsequent channel state information of the channel according to the Doppler information and reports the information to the network equipment. Or the terminal equipment directly calculates the CSI according to the N channel measurement results (namely the channel information of N times) without channel prediction and reports the CSI to the network equipment, the network equipment obtains Doppler information according to the channel information of the N channel measurement results, and the network equipment predicts the subsequent channels of the channel according to the Doppler information.

Example two

In order to enhance the filtering performance and the accuracy of angle delay estimation of the terminal, the network device configures the densities of N CSI-RS resources (used for transmitting N CSI-RS) in the reference signal resource set to be the same, the first offsets of the N CSI-RS resources are partially the same (i.e., the starting RB positions of part of CSI-RS resources in the CSI-RS resource set are the same, i.e., the starting RB indexes of part of CSI-RS resources are the same and the offsets relative to the reference resource block are the same), or the first offsets of the N CSI-RS resources are different (i.e., the starting RB positions of CSI-RS resources in the CSI-RS resource set are different, i.e., the starting RB indexes of CSI-RS resources are different and the offsets relative to the reference resource block are different).

For how the N CSI-RS resources occupy the resource blocks, the following cases may be specifically included:

first case: when N is smaller than the inverse value of the density, the resource blocks occupied by the N CSI-RS are distributed as uniformly as possible in the resource blocks scheduled for the terminal device, i.e. the N CSI-RS resource configurations are distributed as uniformly as possible in the frequency domain.

The resource blocks occupied by the N CSI-RSs are distributed in the resource blocks scheduled for the terminal device as uniformly as possible, which can be understood that, on the basis that the resource blocks occupied by the N CSI-RSs satisfy the density of the corresponding resources, different CSI-RSs need to occupy the same resource blocks as repeatedly as possible, and the intervals of the resource blocks occupied by the different CSI-RSs are the same.

Therefore, in order to make the resource blocks occupied by N CSI-RSs as uniformly distributed as possible in the resource blocks scheduled for the terminal device, the interval (or the difference of the corresponding first offset) between the resource block occupied by one CSI-RS and the resource block occupied by the next CSI-RS may be equal to the reciprocal of the density of the resources divided by N, if the obtained interval is not an integer, the interval is rounded downwards, and if the rounded interval is 0, the interval is made to be 1.

For example, when the densities of the n=2 and 2 CSI-RS resources are all 0.25, that is, in the first period, the network device sends 2 CSI-RS (that is, corresponding to 2 CSI-RS) to the terminal device, where the interval between the resource block occupied by the first CSI-RS and the resource block occupied by the second CSI-RS is 2, that is, the first CSI-RS resource configuration may be in RB0, RB4, RB8 and …, and the second CSI-RS resource configuration may be in RB2, RB6 and RB10 …; or the first CSI-RS resource configuration may be at RB1, RB5, RB9, …, the second CSI-RS resource configuration may be at RB3, RB7, RB11, etc.

Second case: when N is equal to the reciprocal of the density, the first offsets corresponding to the N CSI-RS resources are all different, i.e., the N CSI-RS resources are all configured differently in the frequency domain.

In addition, for the second case, it is also required that the resource blocks occupied by the N CSI-RS are distributed as uniformly as possible in the resource blocks scheduled for the terminal device, i.e., the N CSI-RS resource configurations are distributed as uniformly as possible in the frequency domain.

For example, when n=4, the density of the 4 CSI-RS resources is 0.25, the first offset of the N CSI-RS resources may be sequentially increased, for example, in order to ensure that the resource blocks occupied by the 4 CSI-RS are distributed in the resource blocks scheduled for the terminal device as uniformly as possible, the interval between the resource blocks occupied by the first CSI-RS and the resource blocks occupied by the second CSI-RS may be determined to be 1 in the manner described above in the first case, the interval between the resource blocks occupied by the third CSI-RS and the resource blocks occupied by the second CSI-RS may be determined to be 1 in the manner described above, and the interval between the resource blocks occupied by the third CSI-RS and the resource blocks occupied by the second CSI-RS may be determined to be 1 in the RBs 1, 5, 9 …, and the network device may transmit 4 CSI-RS (i.e., corresponding to 4 CSI-RS) to the terminal device in the first period, the first CSI-RS resource configuration may be configured to be RB0, RB4, RB8, RB 6272, RB2, RB6, RB 62, RB11 and RB 62 may be configured to RB 11. In the second period, the network device sends the CSI-RS to the terminal device according to the sending mode in the first period, and the like, and each same period sends the CSI-RS to the terminal device according to the sending mode in the first period.

Or referring to fig. 7 (b), in the first period, the network device sends 4 CSI-RS (i.e. corresponding to 4 CSI-RS) to the terminal device, where the first offsets corresponding to the N CSI-RS resources are not necessarily related, for example, the first CSI-RS resource configuration may be RB0, RB4, RB8 and …, the second CSI-RS resource configuration may be RB3, RB7 and RB11 and …, the third CSI-RS resource configuration may be RB2, RB6 and RB10 and …, and the fourth CSI-RS resource configuration may be RB1, RB5 and RB9 and …. In the second period, the network device sends the CSI-RS to the terminal device according to the sending manner in the first period, and the like, and each same period sends the CSI-RS to the terminal device according to the sending manner in the first period.

Third case: when N is greater than the inverse of the density, the resource blocks occupied by the N CSI-RS resource configurations are distributed as uniformly as possible in the resource blocks scheduled for the terminal device, i.e., the N CSI-RS resource configurations are distributed as uniformly as possible in the frequency domain.

Therefore, for the third situation, in order to ensure that the resource blocks occupied by the N CSI-RS resource configurations are distributed in the resource blocks scheduled for the terminal device as uniformly as possible, on the basis that the resource blocks occupied by the N CSI-RS satisfy the density of the corresponding resources, the intervals of the resource blocks occupied by different CSI-RS are required to be the same, and the total number of times that each resource block is occupied by the N CSI-RS is the same as much as possible.

For example, when the densities of the n=8 and 8 CSI-RS resources are all 0.25, in the first period, the network device sends 8 CSI-RS (i.e. corresponding to 8 CSI-RS) to the terminal device, in order to ensure that the resource blocks occupied by the 8 CSI-RS are distributed as uniformly as possible in the resource blocks scheduled for the terminal device, the interval between the resource blocks occupied by the first CSI-RS and the resource blocks occupied by the second CSI-RS may be determined to be 1 in the manner of calculating the interval in the first case, the interval between the resource blocks occupied by the third CSI-RS and the resource blocks occupied by the second CSI-RS is 1, the interval between the resource blocks occupied by the fourth CSI-RS and the resource blocks occupied by the third CSI-RS is 1, i.e. the first CSI-RS resource allocation may be set in RB0, RB4, RB8 …, the second CSI-RS resource allocation may be in RB1, RB5, RB9 …, the third CSI-RS resource allocation may be in RB2, RB6, RB10 …, the fourth CSI-RS resource allocation may be in RB3, RB7, RB11 …, at this time, if the number of resource blocks occupied by the fifth CSI-RS resource allocation is not enough to be able to be implemented, the fifth CSI-RS to the eighth CSI-RS may repeatedly occupy the corresponding resource blocks occupied by the first CSI-RS to the fourth CSI-RS, i.e. the number of occupied times of each resource block is 2, so that the resource blocks occupied by the 8 CSI-RS may be ensured to be distributed in the resource blocks scheduled for the terminal device as uniformly as possible, i.e. the fifth CSI-RS resource allocation may be implemented in RB0, RB4, RB8 and …, the sixth CSI RS resource allocation may be at RB1, RB5 and RB9 and …, the seventh CSI RS resource allocation may be at RB2, RB6 and RB10 and …, and the eighth CSI RS resource allocation may be at RB3, RB7 and RB11 and …. In the second period, the network device sends the CSI-RS to the terminal device according to the sending manner in the first period, and the like, and each same period sends the CSI-RS to the terminal device according to the sending manner in the first period.

Or in a period, the network device sends 8 CSI-RSs (i.e. corresponding to 8 CSI-RSs) to the terminal device, where the first CSI-RS resource configuration may be at RB0, RB4, RB8 …, the second CSI-RS resource configuration may be at RB3, RB7, RB11 …, the third CSI-RS resource configuration may be at RB2, RB6, RB10 …, the fourth CSI-RS resource configuration may be at RB1, RB5, RB9 …, the fifth CSI-RS resource configuration may be at RB0, RB4, RB8 …, the sixth CSI-RS resource configuration may be at RB3, RB7, RB11 …, the seventh CSI-RS resource configuration may be at RB2, RB6, RB10 …, and the eighth CSI-RS resource configuration may be at RB1, RB5, RB9 …. In the second period, the network device sends the CSI-RS to the network device according to the sending mode in the first period, and the like, and each same period sends the CSI-RS to the network device according to the sending mode in the first period.

It may be appreciated that the RB occupied by the first CSI-RS resource configuration may be repeated from the RB occupied by the fifth CSI-RS resource configuration, the RB occupied by the sixth CSI-RS resource configuration may be repeated from the RB occupied by the second CSI-RS resource configuration, and so on, which will not be described in detail herein.

By the configuration, N CSI-RS resource configurations can be distributed in the resource blocks scheduled for the terminal equipment as uniformly as possible, so that more accurate channel information can be obtained.

In summary, the method of the present application not only can obtain accurate channel state information in the time-varying channel scenario, but also can set the density of each reference signal resource to 0.25 or 0.125 through the above embodiment, so that the resource block occupied by the reference signal resource is sparse, and therefore, on the premise that the transmitting end (the second communication device) issues the reference signal for many times in a dense manner, it can ensure that the reference signal issued each time can occupy a uniform resource block, reduce the overhead of transmitting the reference signal, and ensure that more accurate channel information is obtained.

The following describes a communication device provided by an embodiment of the present application.

Based on the same technical concept, the embodiment of the present application provides a communication device, which may be applied to the first communication device in the method of the present application, that is, the device includes modules or units corresponding to each other one by one to perform the method/operation/step/action described by the first communication device in the foregoing embodiment, where the modules or units may be hardware circuits, software, or a combination of hardware circuits and software. The communication device has a structure as shown in fig. 8.

As shown in fig. 8, the communication device 800 may include a processing module 801, where the processing module 801 corresponds to a processing unit and may be used to perform a channel measurement according to the first configuration information to obtain a channel state information.

Optionally, the communication device 800 further includes a transceiver module 802, where the transceiver module 802 may implement a corresponding communication function. Illustratively, the transceiver module 802 may include a receiving module and/or a transmitting module, where the receiving module may be configured to receive information and/or data, and the transmitting module may be configured to transmit information and/or data. The transceiving unit may also be referred to as a communication interface or transceiving unit.

Optionally, the communication device 800 may further include a storage module 803, where the storage module 803 corresponds to a storage unit and may be used to store instructions and/or data, and the processing module 801 may read the instructions and/or data in the storage module, so that the communication device implements the foregoing method embodiments.

The communication device module 800 may be used to perform the actions performed by the first communication device in the method embodiments above. The communication device 800 may be a first communication device or a component configurable in a first communication device. The transceiver module 802 is configured to perform the operations related to transmission on the first communication device side in the above method embodiment, and the processing module 801 is configured to perform the operations related to processing on the first communication device side in the above method embodiment.

Alternatively, the transceiver module 802 may include a transmitting module and a receiving module. The sending module is configured to perform the sending operation in the method embodiment. The receiving module is configured to perform the receiving operation in the above method embodiment.

It should be noted that, the communication apparatus 800 may include a transmitting module, and not include a receiving module. Alternatively, the communication device 800 may include a receiving module instead of a transmitting module. Specifically, it may be determined whether or not the above scheme executed by the communication apparatus 800 includes a transmission action and a reception action.

As an example, the communication device 800 is configured to perform the actions performed by the first communication device in the embodiment shown in fig. 5 above.

For example, a transceiver module 802 configured to obtain first configuration information, where the first configuration information is used to indicate reference signal resources in one or more reference signal resource sets, at least one reference signal resource set in the one or more reference signal resource sets includes N reference signal resources, where N is a positive integer greater than or equal to 2; the density of each reference signal resource is M, M is a positive number smaller than 0.5, and the density is used for determining the number of resource blocks occupied by the reference signal resource;

A processing module 801, configured to perform channel measurement according to the first configuration information, to obtain channel state information;

the transceiver module 802 is further configured to send the channel state information.

It should be understood that the specific process of each module performing the corresponding process is described in detail in the above method embodiments, and is not described herein for brevity.

The processing module 801 in the above embodiments may be implemented by at least one processor or processor-related circuits. Transceiver module 802 may be implemented by a transceiver or transceiver related circuitry. The memory unit may be implemented by at least one memory.

Based on the same technical concept, the embodiment of the present application provides a communication device, which may be applied to the second communication device in the method of the present application, that is, the device includes modules or units corresponding to each other one by one to perform the method/operation/step/action described by the second communication device in the foregoing embodiment, where the modules or units may be hardware circuits, software, or a combination of hardware circuits and software. The communication device may have a structure as shown in fig. 8.

As shown in fig. 8, the communication device 800 may include a processing module 801, which processing module 801 is equivalent to a processing unit and may be used for determining the first configuration information.

The communication device module 800 may be used to perform the actions performed by the second communication device in the method embodiments above. The communication device 800 may be a second communication device or a component that may be configured to the second communication device. The transceiver module 802 is configured to perform the operations related to the reception on the second communication device side in the above method embodiment, and the processing module 801 is configured to perform the operations related to the processing on the second communication device side in the above method embodiment.

As an example, the communication device 800 is configured to perform the actions performed by the second communication device in the embodiment shown in fig. 5 above.

For example, the processing module 801 is configured to determine first configuration information, where the first configuration information is configured to indicate reference signal resources in one or more reference signal resource sets, at least one of the one or more reference signal resource sets includes N reference signal resources, where N is a positive integer greater than or equal to 2; the density of each reference signal resource is M, M is a positive number smaller than 0.5, and the density is used for determining the number of resource blocks occupied by the reference signal resource;

a transceiver module 802, configured to send the first configuration information.

The present application also provides a communication device, which may be a first communication device, a processor of a first communication device, or a chip, which may be used to perform the operations performed by the first communication device in the above-described method embodiments. The communication device may also be a second communication device, a processor of a second communication device, or a chip, which may be used to perform the operations performed by the second communication device in the above-described method embodiments.

Fig. 9 shows a simplified schematic diagram of the structure of the first communication device when the communication device is the first communication device. As shown in fig. 9, the first communication device comprises a processor 902, optionally the first communication device further comprises a transceiver 901, and a memory 903. The transceiver 901 includes a receiver, a transmitter, a radio frequency circuit (not shown), an antenna, and an input-output device (not shown). The memory 903 may store computer program code. Optionally, the transceiver 901, the processor 902 and the memory 903 are connected to each other by a bus 904. The bus 904 may be a peripheral component interconnect standard (peripheral component interconnect, PCI) bus or an extended industry standard architecture (extended industry standard architecture, EISA) bus, among others. The bus 904 may be divided into an address bus, a data bus, a control bus, and the like.

The processor 902 is mainly configured to perform channel measurement according to the first configuration information to obtain channel state information, control the first communication device, execute a software program, process data of the software program, and the like. The memory 903 is mainly used for storing software programs and data. A transceiver 901 for performing the transceiving operation on the first communication device side in fig. 5. The radio frequency circuit is mainly used for converting a baseband signal and a radio frequency signal and processing the radio frequency signal. The antenna is mainly used for receiving and transmitting radio frequency signals in the form of electromagnetic waves. An input/output device. For example, touch screens, display screens, keyboards, etc. are mainly used for receiving data input by a user and outputting data to the user. It should be noted that some kinds of first communication apparatuses may not have an input/output apparatus.

When data needs to be transmitted, the processor 902 performs baseband processing on the data to be transmitted, and then outputs a baseband signal to the radio frequency circuit, and the radio frequency circuit performs radio frequency processing on the baseband signal and then transmits the radio frequency signal outwards in the form of electromagnetic waves through the antenna. When data is transmitted to the first communication device, the radio frequency circuit receives a radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor, and the processor 902 converts the baseband signal into data and processes the data. For ease of illustration, only one memory, processor, and transceiver are shown in fig. 9, and in an actual first communication device product, one or more processors and one or more memories may be present. The memory may also be referred to as a storage medium or storage device, etc. The memory may be provided separately from the processor or may be integrated with the processor, as the embodiments of the application are not limited in this respect.

In the embodiment of the present application, the antenna and the radio frequency circuit having the transmitting and receiving function may be regarded as a transmitting and receiving unit (transmitting and receiving module) of the first communication device, and the processor having the processing function may be regarded as a processing unit (processing module) of the first communication device.

As shown in fig. 9, the first communication device includes a transceiver 901, a processor 902, and a memory 903. The transceiver 901 may also be referred to as a transceiver unit, transceiver device, communication interface, etc. The processor 902 may also be referred to as a processing unit, processing board, processing module, processing device, etc.

Alternatively, the device for implementing the receiving function in the transceiver 901 may be regarded as a receiving module, and the device for implementing the transmitting function in the transceiver 901 may be regarded as a transmitting unit or a transmitting module), i.e. the transceiver 901 includes a transmitter and a receiver. The transceiver 901 may also be referred to as a transceiver, transceiver module, transceiver circuit, or the like. The transmitter may also sometimes be referred to as a transmitter, a transmitting module, or a transmitting circuit, etc. The receiver may also be sometimes referred to as a receiver, a receiving module, a receiving circuit, or the like.

For example, in one implementation, the processor 902 is configured to perform the processing actions on the first communication device side in the embodiment shown in fig. 5, and the transceiver 901 is configured to perform the transceiving actions on the first communication device side in fig. 5. For example, the transceiver 901 is configured to perform S501 in the embodiment shown in fig. 5, and may specifically obtain the first configuration information; or the transceiver 901 is configured to perform the operation of S503 in the embodiment shown in fig. 5, and may specifically be to transmit channel state information. The processor 902 is configured to perform the processing operation of S502 in the embodiment shown in fig. 5, specifically, may perform channel measurement according to the first configuration information to obtain channel state information.

It should be understood that fig. 9 is only an example and not a limitation, and the first communication device including the transceiver module and the processing module may not depend on the structure shown in fig. 9.

When the communication device is a chip, fig. 10 shows a simplified schematic diagram of the chip, which includes an interface circuit 1001 and a processor 1002. The interface circuit 1001 and the processor 1002 are coupled to each other, and it is understood that the interface circuit 1001 may be a transceiver or an input/output interface, and the processor may be a processing module or a microprocessor or an integrated circuit integrated on the chip. The transmitting operation of the first communication device in the above method embodiment may be understood as the output of the chip, and the receiving operation of the first communication device in the above method embodiment may be understood as the input of the chip.

Optionally, the communication device 1000 may further comprise a memory 1003 for storing instructions executed by the processor 1002 or for storing input data required for the processor 1002 to execute the instructions or for storing data generated after the processor 1002 executes the instructions. Optionally, memory 1003 may be integrated with processor 1002.

Fig. 9 shows a simplified structural schematic diagram of a second communication device when the communication device is the second communication device. The second communication device comprises a processor 902 and optionally a transceiver 901 part and a memory 903 part. The portion 902 is mainly used for determining the first configuration information, controlling the second communication device, and the like; portion 902 is typically a control center of the base station, and may be generally referred to as a processor, for controlling the second communication device to perform the processing operations on the second communication device side in the above-described method embodiment. Portion 903 is mainly used to store computer program code and data. The 901 part is mainly used for receiving and transmitting radio frequency signals and converting the radio frequency signals and baseband signals; portion 901 may generally be referred to as a transceiver module, transceiver circuitry, or transceiver, etc. The transceiver module of section 901, which may also be referred to as a transceiver or transceiver, includes an antenna and radio frequency circuitry (not shown) that is primarily used for radio frequency processing. Alternatively, the means for implementing the receiving function in the 901 section may be regarded as a receiver and the means for implementing the transmitting function may be regarded as a transmitter, i.e. the transceiver 901 section comprises a transmitter and a receiver. The receiver may also be referred to as a receiving module, receiver, or receiving circuit, etc., and the transmitter may be referred to as a transmitting module, transmitter, or transmitting circuit, etc. Optionally, the 901, 902 and 903 portions are connected to each other by a bus 904. The bus 904 may be a peripheral component interconnect standard (peripheral component interconnect, PCI) bus or an extended industry standard architecture (extended industry standard architecture, EISA) bus, among others. The bus 904 may be divided into an address bus, a data bus, a control bus, and the like.

Portions 901 and 903 may include one or more boards, each of which may include one or more processors and one or more memories. The processor is used for reading and executing the program in the memory to realize the baseband processing function and control of the base station. If there are multiple boards, the boards can be interconnected to enhance processing power. As an alternative implementation manner, the multiple boards may share one or more processors, or the multiple boards may share one or more memories, or the multiple boards may share one or more processors at the same time.

For example, in one implementation, a transceiver module of the transceiver 901 is configured to perform a transceiver related process performed by the second communication device in the embodiment illustrated in fig. 5. The processor of the processor 902 portion is configured to perform the processing related procedures performed by the second communication device in the embodiment shown in fig. 5.

It should be understood that fig. 9 is only an example and not a limitation, and that the second communication device including the processor, the memory, and the transceiver may not depend on the structure shown in fig. 9.

When the communication device is a chip, fig. 10 shows a simplified schematic diagram of the chip, which includes an interface circuit 1001 and a processor 1002. The interface circuit 1001 and the processor 1002 are coupled to each other, and it is understood that the interface circuit 1001 may be a transceiver or an input/output interface, and the processor may be a processing module or a microprocessor or an integrated circuit integrated on the chip. The sending operation of the second communication device in the above method embodiment may be understood as the output of the chip, and the receiving operation of the second communication device in the above method embodiment may be understood as the input of the chip.

The embodiment of the present application also provides a computer readable storage medium having stored thereon computer instructions for implementing the method performed by the first communication device or the second communication device in the above-described method embodiment.

For example, the computer program, when executed by a computer, enables the computer to implement the method performed by the first communication device or the second communication device in the above-described method embodiments.

Embodiments of the present application also provide a computer program product comprising instructions which, when executed by a computer, cause the computer to implement the method performed by the first communication device or the second communication device in the above method embodiments.

The embodiment of the application also provides a communication system, which comprises the first communication device and the second communication device in the above embodiment.

The embodiment of the application also provides a chip device, which comprises a processor, and the processor is used for calling the computer degree or the computer instruction stored in the memory, so that the processor executes the communication method of the embodiment shown in the fig. 5.

In a possible implementation, the input of the chip device corresponds to the receiving operation in the embodiment shown in fig. 5, and the output of the chip device corresponds to the transmitting operation in the embodiment shown in fig. 5.

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

Optionally, the chip device further comprises a memory, in which the computer degree or the computer instructions are stored.

The processor mentioned in any of the above may be a general purpose 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 communication method of the embodiment shown in fig. 5. The memory mentioned in any of the above may be a read-only memory (ROM) or other type of static storage device that can store static information and instructions, a random access memory (random access memory, RAM), etc.

It should be noted that, for convenience and brevity, the explanation and the beneficial effects of the related content in any of the communication devices provided above may refer to the corresponding method embodiments provided above, and are not repeated herein.

In the present application, the first communication device or the second communication device may include a hardware layer, an operating system layer running above the hardware layer, and an application layer running above the operating system layer. The hardware layer may include a central processing unit (central processing unit, CPU), a memory management module (memory management unit, MMU), and a memory (also referred to as a main memory). The operating system of the operating system layer may be any one or more computer operating systems that implement business processing through processes (processes), for example, a Linux operating system, a Unix operating system, an Android operating system, an iOS operating system, or windows operating system, etc. The application layer may include applications such as a browser, address book, word processor, instant messaging software, and the like.

The division of the modules in the embodiments of the present application is schematically only one logic function division, and there may be another division manner in actual implementation, and in addition, each functional module in each embodiment of the present application may be integrated in one processor, or may exist separately and physically, or two or more modules may be integrated in one module. The integrated modules may be implemented in hardware or in software functional modules.

From the above description of embodiments, it will be apparent to those skilled in the art that embodiments of the present application may be implemented in hardware, or firmware, or a combination thereof. When implemented in software, the functions described above may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A storage media may be any available media that can be accessed by a computer. Taking this as an example but not limited to: computer readable media can include RAM, ROM, electrically erasable programmable read-Only memory (electrically erasable programmable read Only memory, EEPROM), compact-disk-read-Only memory (CD-ROM) or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer. Furthermore, it is possible to provide a device for the treatment of a disease. Any connection is properly termed a computer-readable medium. For example, if the software is transmitted from a website, server, or other remote source using a coaxial cable, fiber optic cable, twisted pair, digital subscriber line (digital subscriber line, DSL), or wireless technologies such as infrared, radio, and microwave, then the coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, radio, and microwave are included in the fixing of the medium. As used in the embodiments of the present application, discs (disks) and disks include Compact Discs (CDs), laser discs, optical discs, digital versatile discs (digital video disc, DVDs), floppy disks, and blu-ray discs where disks usually reproduce data magnetically, while disks reproduce data optically with lasers. Combinations of the above should also be included within the scope of computer-readable media.

In summary, the foregoing description is only exemplary embodiments of the present application and is not intended to limit the scope of the present application. Any modification, equivalent replacement, improvement, etc. made according to the disclosure of the present application should be included in the protection scope of the present application.

Claims

1. A method of communication, comprising:

the method comprises the steps that a first communication device obtains first configuration information, wherein the first configuration information is used for indicating reference signal resources in one or more reference signal resource sets, at least one reference signal resource set in the one or more reference signal resource sets comprises N reference signal resources, and N is a positive integer greater than or equal to 2; the density of each reference signal resource is M, M is a positive number smaller than 0.5, and the density is used for determining the number of resource blocks occupied by the reference signal resource;

the first communication device performs channel measurement according to the first configuration information to obtain channel state information;

the first communication device transmits the channel state information.

2. The method of claim 1, wherein M is equal to 0.25 or wherein M is equal to 0.125.

3. The method of claim 1, wherein the first configuration information is further used to indicate a first offset, the first offset being used to indicate an offset of a starting resource block occupied by the reference signal resource relative to a reference resource block.

4. The method of claim 3, wherein the first offsets corresponding to the N reference signal resources are all the same; or the first offset parts corresponding to the N reference signal resources are the same; or the first offsets corresponding to the N reference signal resources are all different.

5. The method according to any of claims 1-4, wherein the N reference signal resources occupy resource blocks uniformly.

6. The method of claim 1, wherein the first configuration information is further used for indicating a period corresponding to the reference signal resource and a second offset, the second offset is used for indicating an offset of a time slot occupied by the reference signal resource relative to a reference time slot, a value range of the second offset is 0 to a period corresponding to the reference signal resource, periods corresponding to the N reference signal resources are all the same, and the second offset corresponding to a first one of the reference signal resources to the second offset corresponding to an nth one of the reference signal resources are increased at equal intervals.

7. The method of claim 1, wherein the first configuration information is further used to indicate quasi co-located QCL sources corresponding to the reference signal resources, and QCL sources corresponding to the N reference signal resources are all the same; or the first configuration information is further used for indicating the type of quasi co-located QCL corresponding to the reference signal resource, and the types of QCLs corresponding to the N reference signal resources are the same.

8. A method of communication, comprising:

the second communication device determines first configuration information, wherein the first configuration information is used for indicating reference signal resources in one or more reference signal resource sets, at least one reference signal resource set in the one or more reference signal resource sets comprises N reference signal resources, and N is a positive integer greater than or equal to 2; the density of each reference signal resource is M, M is a positive number smaller than 0.5, and the density is used for determining the number of resource blocks occupied by the reference signal resource;

the second communication device transmits the first configuration information.

9. The method of claim 8, wherein M is equal to 0.25 or wherein M is equal to 0.125.

10. The method of claim 8, wherein the first configuration information is further used to indicate a first offset, the first offset being used to indicate an offset of a starting resource block occupied by the reference signal resource relative to a reference resource block.

11. The method of claim 10, wherein the first offsets corresponding to the N reference signal resources are all the same; or the first offset parts corresponding to the N reference signal resources are the same; or the first offsets corresponding to the N reference signal resources are all different.

12. The method according to any of claims 8-11, wherein the N reference signal resources occupy resource blocks uniformly.

13. The method of claim 8, wherein the first configuration information is further used for indicating a period corresponding to the reference signal resource and a second offset, the second offset is used for indicating an offset of a time slot occupied by the reference signal resource relative to a reference time slot, a value range of the second offset is 0 to a period corresponding to the reference signal resource, periods corresponding to the N reference signal resources are all the same, and the second offset corresponding to a first one of the reference signal resources to the second offset corresponding to an nth one of the reference signal resources are increased at equal intervals.

14. The method of claim 8, wherein the first configuration information is further used to indicate quasi co-located QCL sources corresponding to the reference signal resources, and QCL sources corresponding to the N reference signal resources are all the same; or the first configuration information is further used for indicating the type of quasi co-located QCL corresponding to the reference signal resource, and the types of QCLs corresponding to the N reference signal resources are the same.

15. A communication device, comprising: a transceiver module and a processing module;

the transceiver module is configured to obtain first configuration information, where the first configuration information is used to indicate reference signal resources in one or more reference signal resource sets, at least one reference signal resource set in the one or more reference signal resource sets includes N reference signal resources, and N is a positive integer greater than or equal to 2; the density of each reference signal resource is M, M is a positive number smaller than 0.5, and the density is used for determining the number of resource blocks occupied by the reference signal resource;

the processing module is used for carrying out channel measurement according to the first configuration information to obtain channel state information;

the receiving and transmitting module is further configured to transmit the channel state information.

16. The apparatus of claim 15, wherein M is equal to 0.25 or wherein M is equal to 0.125.

17. The apparatus of claim 15, wherein the first configuration information is further for indicating a first offset for indicating an offset of a starting resource block occupied by the reference signal resource relative to a reference resource block.

18. The apparatus of claim 17, wherein the first offsets for the N reference signal resources are all the same; or the first offset parts corresponding to the N reference signal resources are the same; or the first offsets corresponding to the N reference signal resources are all different.

19. The apparatus according to any of claims 15-18, wherein the N reference signal resources occupy resource blocks uniformly.

20. The apparatus of claim 15, wherein the first configuration information is further configured to indicate a period corresponding to the reference signal resource and a second offset, the second offset is configured to indicate an offset of a time slot occupied by the reference signal resource relative to a reference time slot, a value of the second offset ranges from 0 to a period corresponding to the reference signal resource, periods corresponding to the N reference signal resources are all the same, and the second offset corresponding to a first one of the reference signal resources to the second offset corresponding to an nth one of the reference signal resources are increased at equal intervals.

21. The apparatus of claim 15, wherein the first configuration information is further used to indicate quasi co-located QCL sources corresponding to the reference signal resources, and QCL sources corresponding to the N reference signal resources are all the same; or the first configuration information is further used for indicating the type of quasi co-located QCL corresponding to the reference signal resource, and the types of QCLs corresponding to the N reference signal resources are the same.

22. The apparatus of any of claims 15-21, wherein the transceiver module is a transceiver and the processing module is a processor.

23. A communication device, comprising: a transceiver module and a processing module;

the processing module is configured to determine first configuration information, where the first configuration information is used to indicate reference signal resources in one or more reference signal resource sets, at least one reference signal resource set in the one or more reference signal resource sets includes N reference signal resources, and N is a positive integer greater than or equal to 2; the density of each reference signal resource is M, M is a positive number smaller than 0.5, and the density is used for determining the number of resource blocks occupied by the reference signal resource;

the transceiver module is configured to send the first configuration information.

24. The apparatus of claim 23, wherein M is equal to 0.25 or wherein M is equal to 0.125.

25. The apparatus of claim 23, wherein the first configuration information is further for indicating a first offset for indicating an offset of a starting resource block occupied by the reference signal resource relative to a reference resource block.

26. The apparatus of claim 25, wherein the first offsets for the N reference signal resources are all the same; or the first offset parts corresponding to the N reference signal resources are the same; or the first offsets corresponding to the N reference signal resources are all different.

27. The apparatus according to any of claims 23-26, wherein the N reference signal resources occupy resource blocks uniformly.

28. The apparatus of claim 23, wherein the first configuration information is further used for indicating a period corresponding to the reference signal resource and a second offset, the second offset is used for indicating an offset of a time slot occupied by the reference signal resource relative to a reference time slot, a value of the second offset ranges from 0 to a period corresponding to the reference signal resource, periods corresponding to the N reference signal resources are all the same, and the second offset corresponding to a first one of the reference signal resources to the second offset corresponding to an nth one of the reference signal resources are increased at equal intervals.

29. The apparatus of claim 23, wherein the first configuration information is further used to indicate quasi co-located QCL sources corresponding to the reference signal resources, and QCL sources corresponding to the N reference signal resources are all the same; or the first configuration information is further used for indicating the type of quasi co-located QCL corresponding to the reference signal resource, and the types of QCLs corresponding to the N reference signal resources are the same.

30. The apparatus of any one of claims 23-29, wherein the transceiver module is a transceiver and the processing module is a processor.

31. A communication device, comprising: a processor coupled to a memory for storing a computer program; the processor is configured to execute the computer program stored in the memory, to cause the communication device to perform the method according to any one of claims 1-7, or to cause the communication device to perform the method according to any one of claims 8-14.

32. A computer readable storage medium storing a computer program which, when run on a processor, causes the method of any one of claims 1-7 to be performed or causes the method of any one of claims 8-14 to be performed.

33. A computer program product comprising instructions which, when run on a computer, cause the method of any one of claims 1 to 7 to be performed or cause the method of any one of claims 8 to 14 to be performed.