Communication method and device

Abstract

Disclosed are a communication method and device, the method comprising: a terminal device receiving configuration information sent by a network device, the configuration information comprising M first-level pilot frequency resource numbers and X second-level pilot frequency resources, one first-level pilot frequency resource being associated with one or more second-level pilot frequency resources, m and X are integers greater than 0; and selecting N first-level pilot frequency resources from the M first-level pilot frequency resources, and measuring Y second-level pilot frequency resources associated with the N first-level pilot frequency resources in the X second-level pilot frequency resources. By adopting the embodiment of the invention, the measurement complexity of the terminal equipment can be reduced, and the air interface transmission capability of the terminal equipment is ensured.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to a communication method and device. Background Art

[0002] The fifth generation mobile communication system (5th generation, 5G) can use more frequency bands for communication transmission. For medium and high frequency band (such as 6GHz, 28GHz) signal transmission, in order to overcome signal interruption and energy decline during transmission, a larger antenna array is usually used on the network device side or the terminal device side. By weighting the antenna array, the signal energy is concentrated within a smaller angle range to form a signal similar to a light beam (called an analog beam, or a digital beam, or a beam), thereby increasing the transmission distance.

[0003] Based on the existing protocol, the terminal device reports the maximum number of pilot resources N (also called the capability N of the terminal device) that can be used for beam management and that can be configured by the network terminal device, and the network terminal device configures multiple pilot resources for beam scanning for the terminal device. Among them, the number of configured pilot resources cannot exceed the capability N reported by the terminal device. If the number of beams to be measured is greater than the capability N reported by the terminal device, the network device can only select some beams from the beam set and configure them to the terminal device for measurement. If some potential service beams are not among the beams selected by the network device, the beam selection reported by the terminal device may be limited, affecting the air interface transmission capability of the terminal device. Summary of the invention

[0004] The embodiments of the present application provide a communication method and apparatus, which reduce the complexity of terminal device measurement and ensure the air interface transmission capability of the terminal device.

[0005] In a first aspect, an embodiment of the present application provides a communication method, which is applied to a terminal device, or a chip or circuit configured in the terminal device, including:

[0006] receiving configuration information sent by a network device, the configuration information including M first-level pilot resource numbers and X second-level pilot resources, one first-level pilot resource is associated with one or more second-level pilot resources, and both M and X are integers greater than 0;

[0007] N first-level pilot resources are selected from the M first-level pilot resources, and Y second-level pilot resources associated with the N first-level pilot resources among the X second-level pilot resources are measured, where N is an integer greater than or equal to 1 and less than or equal to M, and Y is an integer greater than or equal to 1 and less than or equal to X.

[0008] Based on the association between pilot resources of different levels, the terminal device selects some first-level pilot resources from multiple first-level pilot resources, measures and reports the second-level pilot resources associated with some first-level pilot resources in multiple second-level pilot resources, and the network device indicates the corresponding TCI information for subsequent uplink and downlink data transmission. Thus, without increasing the measurement complexity of the terminal device, it is possible to select potential service pilot resources from a larger pilot resource set for measurement and reporting. Moreover, under the same number of pilot resource sets, the terminal device selects some pilot resources for measurement, which reduces the complexity of the terminal device measurement without affecting the selection of potential service pilot resources, and ensures the air interface transmission capability of the terminal device.

[0009] In a possible design, the configuration manner of the first-level pilot resources and the second-level pilot resources includes one or more of the following:

[0010] The first-level pilot resources and the second-level pilot resources are configured in the same pilot resource set; or, the first-level pilot resources and the second-level pilot resources are configured in different pilot resource sets; or, the first-level pilot resources and the second-level pilot resources are associated with the same reporting configuration.

[0011] In one possible design, an association relationship between one of the first-level pilot resources and one or more of the second-level pilot resources includes one or more of the following:

[0012] A spatial filtering inclusion and / or being included relationship between a first-level pilot resource and one or more second-level pilot resources; or an activation and / or deactivation relationship between a first-level pilot resource and one or more second-level pilot resources.

[0013] In one possible design, the spatial filtering inclusion and / or included association relationship between the one first-level pilot resource and one or more second-level pilot resources includes one or more of the following:

[0014] A spatial domain filtering of the first-level pilot resource is greater than or equal to a spatial domain filtering of the second-level pilot resource; or

[0015] The reception spatial domain filtering of one first-level pilot resource and one or more second-level pilot resources is the same; or

[0016] The transmission spatial domain filtering of one first-level pilot resource and one or more second-level pilot resources is the same.

[0017] In one possible design, the activation and / or deactivation association relationship between the one first-level pilot resource and one or more second-level pilot resources includes one or more of the following:

[0018] One of the first-level pilot resources and one or more of the second-level pilot resources are activated simultaneously; or

[0019] One of the first-level pilot resources and one or more of the second-level pilot resources are deactivated simultaneously.

[0020] In one possible design, the configuration information includes a first pilot resource set and a second pilot resource set, the first pilot resource set includes the M first-level pilot resources, the second pilot resource set includes the X second-level pilot resources, the M first-level pilot resources are arranged in order of resource index size, the X second-level pilot resources are arranged in order of resource index size, the i-th first-level pilot resource among the M first-level pilot resources is associated with the (i-1)*j+1-th second-level pilot resource to the i*j-th second-level pilot resource among the X second-level pilot resources, i is an integer greater than 0 and less than or equal to M, j is the number of the second-level pilot resources associated with one first-level pilot resource, and j is an integer greater than 0 and less than or equal to X.

[0021] In one possible design, the configuration information includes a third pilot resource set, the third pilot resource set including the M first-level pilot resources and the X second-level pilot resources, the M first-level pilot resources and the X second-level pilot resources are arranged in order of resource index size, the i-th first-level pilot resource among the M first-level pilot resources is associated with the (i-1)*j+1-th second-level pilot resource to the i*j-th second-level pilot resource among the X second-level pilot resources, i is an integer greater than 0 and less than or equal to M, j is the number of the second-level pilot resources associated with one first-level pilot resource, and j is an integer greater than 0 and less than or equal to X.

[0022] In one possible design, the configuration information includes a fourth pilot resource set, and the fourth pilot resource set includes the one first-level pilot resource and k second-level pilot resources, where k is the number of the second-level equal-frequency resources associated with one first-level pilot resource, and k is an integer greater than 0.

[0023] In a possible design, one or more pilot resources are selected from the Y second-level pilot resources; or, one or more pilot resources are selected from the M first-level pilot resources and the Y second-level pilot resources; or, one or more pilot resources are selected from the X second-level pilot resources; or, one or more pilot resources are selected from the M first-level pilot resources and the X second-level pilot resources; and the index of the one or more pilot resources is sent to the network device. By selecting some pilot resources from the first-level pilot resources and the second-level pilot resources for reporting, the complexity of the terminal device measurement is reduced, and the air interface transmission capability of the terminal device is guaranteed.

[0024] In one possible design, the index of the pilot resources includes one or more of the following: the global resource index of the first-level pilot resources, the local resource index of the first-level pilot resources, the global resource index of the second-level pilot resources, the local resource index of the second-level pilot resources, the level index of the first-level pilot resources, and the level index of the second-level pilot resources.

[0025] In one possible design, the channel state information of the M first-level pilot resources is determined, and the channel state information is selected from the M first-level pilot resources and arranged in the first N first-level pilot resources in order from large to small; or, the channel state information of the M first-level pilot resources is determined, and N first-level pilot resources whose difference between the channel state information and the first channel state information is less than a first threshold are selected from the M first-level pilot resources, wherein the first channel state information is the maximum value among the channel state information of the M first-level pilot resources. By selecting the first-level pilot resources with better channel state information and measuring the second-level pilot resources associated with the first-level pilot resources with better channel state information, it is possible to select potential service pilot resources from a larger pilot resource set for measurement and reporting without increasing the measurement complexity of the terminal device.

[0026] In one possible design, Y second-level pilot resources associated with the N first-level pilot resources among the X second-level pilot resources are measured to determine channel state information of the Y second-level pilot resources; one or more channel state information is selected from the channel state information of the M first-level pilot resources and the channel state information of the Y second-level pilot resources to report to the network device. By selecting one or more channel state information for reporting, the network device can determine the pilot resources used for pilot or data transmission, thereby ensuring successful data transmission.

[0027] In one possible design, the channel state information includes one or more of the following: signal-to-noise ratio SINR, reference signal received power RSRP, reference signal received quality RSRQ, rank indication RI, channel quality indication CQI, and precoding matrix indication PMI.

[0028] In a second aspect, an embodiment of the present application provides a communication method, which is applied to a network device, or a chip or circuit configured in a network device, including:

[0029] Determine configuration information, where the configuration information includes M first-level pilot resource numbers and X second-level pilot resources, one first-level pilot resource is associated with one or more second-level pilot resources, and both M and X are integers greater than 0;

[0030] The configuration information is sent to the terminal device, where the configuration information is used to indicate that N first-level pilot resources are selected from the M first-level pilot resources, and Y second-level pilot resources among the X second-level pilot resources that are associated with the N first-level pilot resources are measured, where N is an integer greater than or equal to 1 and less than or equal to M, and Y is an integer greater than or equal to 1 and less than or equal to X.

[0031] By sending configuration information to the terminal device, the terminal device selects some first-level pilot resources from multiple first-level pilot resources based on the association relationship between different levels of pilot resources, and measures and reports the second-level pilot resources associated with some first-level pilot resources in multiple second-level pilot resources, and the network device indicates the corresponding TCI information for subsequent uplink and downlink data transmission. Thus, without increasing the measurement complexity of the terminal device, it is possible to select potential service pilot resources from a larger pilot resource set for measurement and reporting. Moreover, under the same number of pilot resource sets, the terminal device selects some pilot resources for measurement, which reduces the complexity of the terminal device measurement without affecting the selection of potential service pilot resources, and ensures the air interface transmission capability of the terminal device.

[0032] In a possible design, the configuration manner of the first-level pilot resources and the second-level pilot resources includes one or more of the following:

[0033] The first-level pilot resources and the second-level pilot resources are configured in the same pilot resource set; or

[0034] The first-level pilot resources and the second-level pilot resources are configured in different pilot resource sets; or

[0035] The first-level pilot resources and the second-level pilot resources are associated with the same reporting configuration.

[0036] In one possible design, an association relationship between one of the first-level pilot resources and one or more of the second-level pilot resources includes one or more of the following:

[0037] a spatial filtering inclusion and / or inclusion-involved association relationship between one first-level pilot resource and one or more second-level pilot resources; or

[0038] An activation and / or deactivation association relationship between one first-level pilot resource and one or more second-level pilot resources.

[0039] In one possible design, the spatial filtering inclusion and / or included association relationship between the one first-level pilot resource and one or more second-level pilot resources includes one or more of the following:

[0040] A spatial domain filtering of the first-level pilot resource is greater than or equal to a spatial domain filtering of the second-level pilot resource; or

[0041] The reception spatial domain filtering of one first-level pilot resource and one or more second-level pilot resources is the same; or

[0042] The transmission spatial domain filtering of one first-level pilot resource and one or more second-level pilot resources is the same.

[0043] In one possible design, the activation and / or deactivation association relationship between the one first-level pilot resource and one or more second-level pilot resources includes one or more of the following:

[0044] One of the first-level pilot resources and one or more of the second-level pilot resources are activated simultaneously; or

[0045] One of the first-level pilot resources and one or more of the second-level pilot resources are deactivated simultaneously.

[0046] In one possible design, the configuration information includes a first pilot resource set and a second pilot resource set, the first pilot resource set includes the M first-level pilot resources, the second pilot resource set includes the X second-level pilot resources, the M first-level pilot resources are arranged in order of resource index size, the X second-level pilot resources are arranged in order of resource index size, the i-th first-level pilot resource among the M first-level pilot resources is associated with the (i-1)*j+1-th second-level pilot resource to the i*j-th second-level pilot resource among the X second-level pilot resources, i is an integer greater than 0 and less than or equal to M, j is the number of the second-level pilot resources associated with one first-level pilot resource, and j is an integer greater than 0 and less than or equal to X.

[0047] In one possible design, the configuration information includes a third pilot resource set, the third pilot resource set including the M first-level pilot resources and the X second-level pilot resources, the M first-level pilot resources and the X second-level pilot resources are arranged in order of resource index size, the i-th first-level pilot resource among the M first-level pilot resources is associated with the (i-1)*j+1-th second-level pilot resource to the i*j-th second-level pilot resource among the X second-level pilot resources, i is an integer greater than 0 and less than or equal to M, j is the number of the second-level pilot resources associated with one first-level pilot resource, and j is an integer greater than 0 and less than or equal to X.

[0048] In one possible design, the configuration information includes a fourth pilot resource set, and the fourth pilot resource set includes the one first-level pilot resource and k second-level pilot resources, where k is the number of the second-level equal-frequency resources associated with one first-level pilot resource, and k is an integer greater than 0.

[0049] In a possible design, the network device receives an index of one or more pilot resources sent by the terminal device, and the one or more pilot resources are selected from the Y second-level pilot resources, or selected from the M first-level pilot resources and Y second-level pilot resources, or selected from the X second-level pilot resources, or selected from the M first-level pilot resources and the X second-level pilot resources. By selecting part of the pilot resources from the first-level pilot resources and the second-level pilot resources for reporting, the terminal device reduces the complexity of the terminal device measurement and ensures the air interface transmission capability of the terminal device.

[0050] In one possible design, the index of the pilot resources includes one or more of the following: the global resource index of the first-level pilot resources, the local resource index of the first-level pilot resources, the global resource index of the second-level pilot resources, the local resource index of the second-level pilot resources, the level index of the first-level pilot resources, and the level index of the second-level pilot resources.

[0051] In one possible design, the network device receives one or more channel state information sent by the terminal device, where the one or more channel state information is selected from the channel state information of the M first-level pilot resources and the channel state information of the Y second-level pilot resources. The network device receives one or more channel state information reported by the terminal device to determine the pilot resource used for pilot or data transmission, thereby ensuring successful data transmission.

[0052] In one possible design, the channel state information includes one or more of the following: signal-to-noise ratio SINR, reference signal received power RSRP, reference signal received quality RSRQ, rank indication RI, channel quality indication CQI, and precoding matrix indication PMI.

[0053] In a third aspect, an embodiment of the present application provides a communication device, the device comprising:

[0054] A receiving module, configured to receive configuration information sent by a network device, wherein the configuration information includes M first-level pilot resource numbers and X second-level pilot resources, one first-level pilot resource is associated with one or more second-level pilot resources, and both M and X are integers greater than 0;

[0055] A processing module is used to select N first-level pilot resources from the M first-level pilot resources, and measure Y second-level pilot resources associated with the N first-level pilot resources among the X second-level pilot resources, where N is an integer greater than or equal to 1 and less than or equal to M, and Y is an integer greater than or equal to 1 and less than or equal to X.

[0056] In a possible design, the configuration manner of the first-level pilot resources and the second-level pilot resources includes one or more of the following:

[0057] The first-level pilot resources and the second-level pilot resources are configured in the same pilot resource set; or

[0058] The first-level pilot resources and the second-level pilot resources are configured in different pilot resource sets; or

[0059] The first-level pilot resources and the second-level pilot resources are associated with the same reporting configuration.

[0060] In one possible design, an association relationship between one of the first-level pilot resources and one or more of the second-level pilot resources includes one or more of the following:

[0061] a spatial filtering inclusion and / or inclusion-involved association relationship between one first-level pilot resource and one or more second-level pilot resources; or

[0062] An activation and / or deactivation association relationship between one first-level pilot resource and one or more second-level pilot resources.

[0063] In one possible design, the spatial filtering inclusion and / or included association relationship between the one first-level pilot resource and one or more second-level pilot resources includes one or more of the following:

[0064] A spatial domain filtering of the first-level pilot resource is greater than or equal to a spatial domain filtering of the second-level pilot resource; or

[0065] The reception spatial domain filtering of one first-level pilot resource and one or more second-level pilot resources is the same; or

[0066] The transmission spatial domain filtering of one first-level pilot resource and one or more second-level pilot resources is the same.

[0067] In one possible design, the activation and / or deactivation association relationship between the one first-level pilot resource and one or more second-level pilot resources includes one or more of the following:

[0068] One of the first-level pilot resources and one or more of the second-level pilot resources are activated simultaneously; or

[0069] One of the first-level pilot resources and one or more of the second-level pilot resources are deactivated simultaneously.

[0070] In one possible design, the configuration information includes a first pilot resource set and a second pilot resource set, the first pilot resource set includes the M first-level pilot resources, the second pilot resource set includes the X second-level pilot resources, the M first-level pilot resources are arranged in order of resource index size, the X second-level pilot resources are arranged in order of resource index size, the i-th first-level pilot resource among the M first-level pilot resources is associated with the (i-1)*j+1-th second-level pilot resource to the i*j-th second-level pilot resource among the X second-level pilot resources, i is an integer greater than 0 and less than or equal to M, j is the number of the second-level pilot resources associated with one first-level pilot resource, and j is an integer greater than 0 and less than or equal to X.

[0071] In one possible design, the configuration information includes a third pilot resource set, the third pilot resource set including the M first-level pilot resources and the X second-level pilot resources, the M first-level pilot resources and the X second-level pilot resources are arranged in order of resource index size, the i-th first-level pilot resource among the M first-level pilot resources is associated with the (i-1)*j+1-th second-level pilot resource to the i*j-th second-level pilot resource among the X second-level pilot resources, i is an integer greater than 0 and less than or equal to M, j is the number of the second-level pilot resources associated with one first-level pilot resource, and j is an integer greater than 0 and less than or equal to X.

[0072] In one possible design, the configuration information includes a fourth pilot resource set, and the fourth pilot resource set includes the one first-level pilot resource and k second-level pilot resources, where k is the number of the second-level equal-frequency resources associated with one first-level pilot resource, and k is an integer greater than 0.

[0073] In one possible design, the processing module is further configured to select one or more pilot resources from the Y second-level pilot resources; or, select one or more pilot resources from the M first-level pilot resources and the Y second-level pilot resources; or, select one or more pilot resources from the X second-level pilot resources; or, select one or more pilot resources from the M first-level pilot resources and the X second-level pilot resources;

[0074] A sending module is used to send the index of the one or more pilot resources to the network device.

[0075] In one possible design, the index of the pilot resources includes one or more of the following: the global resource index of the first-level pilot resources, the local resource index of the first-level pilot resources, the global resource index of the second-level pilot resources, the local resource index of the second-level pilot resources, the level index of the first-level pilot resources, and the level index of the second-level pilot resources.

[0076] In one possible design, the processing module is further used to determine the channel state information of the M first-level pilot resources, and select the channel state information from the M first-level pilot resources to be arranged in the first N first-level pilot resources in order from largest to smallest; or

[0077] The processing module is also used to determine the channel state information of the M first-level pilot resources, and select N first-level pilot resources whose difference value between the channel state information and the first channel state information is less than a first threshold from the M first-level pilot resources, wherein the first channel state information is the maximum value among the channel state information of the M first-level pilot resources.

[0078] In one possible design, the processing module is further used to measure Y second-level pilot resources among the X second-level pilot resources that are associated with the N first-level pilot resources, and determine channel state information of the Y second-level pilot resources; and select one or more channel state information from the channel state information of the M first-level pilot resources and the channel state information of the Y second-level pilot resources to report to the network device.

[0079] In one possible design, the channel state information includes one or more of the following: signal-to-noise ratio SINR, reference signal received power RSRP, reference signal received quality RSRQ, rank indication RI, channel quality indication CQI, and precoding matrix indication PMI.

[0080] The operations and beneficial effects performed by the communication device can refer to the method and beneficial effects described in the first aspect above, and the repeated parts will not be repeated.

[0081] In a fourth aspect, an embodiment of the present application provides a communication device, the device comprising:

[0082] A processing module, configured to determine configuration information, wherein the configuration information includes M first-level pilot resource numbers and X second-level pilot resources, one first-level pilot resource is associated with one or more second-level pilot resources, and both M and X are integers greater than 0;

[0083] A sending module is used to send the configuration information to the terminal device, wherein the configuration information is used to indicate that N first-level pilot resources are selected from the M first-level pilot resources, and Y second-level pilot resources associated with the N first-level pilot resources among the X second-level pilot resources are measured, where N is an integer greater than or equal to 1 and less than or equal to M, and Y is an integer greater than or equal to 1 and less than or equal to X.

[0084] In a possible design, the configuration manner of the first-level pilot resources and the second-level pilot resources includes one or more of the following:

[0085] The first-level pilot resources and the second-level pilot resources are configured in the same pilot resource set; or

[0086] The first-level pilot resources and the second-level pilot resources are configured in different pilot resource sets; or

[0087] The first-level pilot resources and the second-level pilot resources are associated with the same reporting configuration.

[0088] In one possible design, an association relationship between one of the first-level pilot resources and one or more of the second-level pilot resources includes one or more of the following:

[0089] a spatial filtering inclusion and / or inclusion-involved association relationship between one first-level pilot resource and one or more second-level pilot resources; or

[0090] An activation and / or deactivation association relationship between one first-level pilot resource and one or more second-level pilot resources.

[0091] In one possible design, the spatial filtering inclusion and / or included association relationship between the one first-level pilot resource and one or more second-level pilot resources includes one or more of the following:

[0092] A spatial domain filtering of the first-level pilot resource is greater than or equal to a spatial domain filtering of the second-level pilot resource; or

[0093] The reception spatial domain filtering of one first-level pilot resource and one or more second-level pilot resources is the same; or

[0094] The transmission spatial domain filtering of one first-level pilot resource and one or more second-level pilot resources is the same.

[0095] In one possible design, the activation and / or deactivation association relationship between the one first-level pilot resource and one or more second-level pilot resources includes one or more of the following:

[0096] One of the first-level pilot resources and one or more of the second-level pilot resources are activated simultaneously; or

[0097] One of the first-level pilot resources and one or more of the second-level pilot resources are deactivated simultaneously.

[0098] In one possible design, the configuration information includes a first pilot resource set and a second pilot resource set, the first pilot resource set includes the M first-level pilot resources, the second pilot resource set includes the X second-level pilot resources, the M first-level pilot resources are arranged in order of resource index size, the X second-level pilot resources are arranged in order of resource index size, the i-th first-level pilot resource among the M first-level pilot resources is associated with the (i-1)*j+1-th second-level pilot resource to the i*j-th second-level pilot resource among the X second-level pilot resources, i is an integer greater than 0 and less than or equal to M, j is the number of the second-level pilot resources associated with one first-level pilot resource, and j is an integer greater than 0 and less than or equal to X.

[0099] In one possible design, the configuration information includes a third pilot resource set, the third pilot resource set including the M first-level pilot resources and the X second-level pilot resources, the M first-level pilot resources and the X second-level pilot resources are arranged in order of resource index size, the i-th first-level pilot resource among the M first-level pilot resources is associated with the (i-1)*j+1-th second-level pilot resource to the i*j-th second-level pilot resource among the X second-level pilot resources, i is an integer greater than 0 and less than or equal to M, j is the number of the second-level pilot resources associated with one first-level pilot resource, and j is an integer greater than 0 and less than or equal to X.

[0100] In one possible design, the configuration information includes a fourth pilot resource set, and the fourth pilot resource set includes the one first-level pilot resource and k second-level pilot resources, where k is the number of the second-level equal-frequency resources associated with one first-level pilot resource, and k is an integer greater than 0.

[0101] In one possible design, a receiving module is used to receive an index of one or more pilot resources sent by the terminal device, where the one or more pilot resources are selected from the Y second-level pilot resources, or selected from the M first-level pilot resources and the Y second-level pilot resources, or selected from the X second-level pilot resources, or selected from the M first-level pilot resources and the X second-level pilot resources.

[0102] In one possible design, the index of the pilot resources includes one or more of the following: the global resource index of the first-level pilot resources, the local resource index of the first-level pilot resources, the global resource index of the second-level pilot resources, the local resource index of the second-level pilot resources, the level index of the first-level pilot resources, and the level index of the second-level pilot resources.

[0103] In one possible design, a receiving module is used to receive one or more channel state information sent by the terminal device, and the one or more channel state information is selected from the channel state information of the M first-level pilot resources and the channel state information of the Y second-level pilot resources.

[0104] In one possible design, the channel state information includes one or more of the following: signal-to-noise ratio SINR, reference signal received power RSRP, reference signal received quality RSRQ, rank indication RI, channel quality indication CQI, and precoding matrix indication PMI.

[0105] The operations and beneficial effects performed by the communication device can refer to the method and beneficial effects described in the second aspect above, and the repeated parts will not be repeated.

[0106] In a fifth aspect, the present application provides a communication device, comprising a processor and a memory, wherein the memory is used to store a computer program; the processor is used to execute the computer program stored in the memory so that the communication device performs a method as described in any one of the first aspects.

[0107] In a sixth aspect, the present application provides a communication device, comprising a processor and a memory, wherein the memory is used to store a computer program; the processor is used to execute the computer program stored in the memory so that the communication device performs a method as described in any one of the second aspects.

[0108] In the seventh aspect, the present application provides a communication device, which may be a terminal device, or a device in a terminal device, or a device that can be used in combination with a terminal device. Among them, the communication device may also be a chip system. The communication device may execute the method described in the first aspect. The functions of the communication device may be implemented by hardware, or by hardware executing corresponding software implementations. The hardware or software includes one or more modules corresponding to the above functions. The module may be software and / or hardware. The operations and beneficial effects performed by the communication device may refer to the methods and beneficial effects described in the first aspect above, and the repetitive parts will not be repeated.

[0109] In an eighth aspect, the present application provides a communication device, which may be a network device, or a device in a network device, or a device that can be used in combination with a network device. Among them, the communication device may also be a chip system. The communication device may execute the method described in the second aspect. The functions of the communication device may be implemented by hardware, or by hardware executing corresponding software implementations. The hardware or software includes one or more modules corresponding to the above functions. The module may be software and / or hardware. The operations and beneficial effects performed by the communication device may refer to the methods and beneficial effects described in the second aspect above, and the repetitive parts will not be repeated.

[0110] In a ninth aspect, the present application provides a computer-readable storage medium for storing a computer program. When the computer program is executed, the method described in any one of the first aspect and the second aspect is implemented.

[0111] In a tenth aspect, the present application provides a computer program product comprising a computer program, which, when executed, enables the method described in any one of the first and second aspects to be implemented.

[0112] In the eleventh aspect, an embodiment of the present application provides a communication system, which includes at least one terminal device and at least one network device, the terminal device is used to execute the steps in the above-mentioned first aspect, and the network device is used to execute the steps in the above-mentioned second aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0113] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the background technology, the drawings required for use in the embodiments of the present application or the background technology will be described below.

[0114] Figure 1 is a schematic diagram of a MAC CE structure for activating TCI;

[0115] Figure 2 It is a structural diagram of a communication system provided in an embodiment of the present application;

[0116] Figure 3 It is a flow chart of a communication method provided in an embodiment of the present application;

[0117] Figure 4 is a structural diagram of a communication device provided in an embodiment of the present application;

[0118] Figure 5 is a structural diagram of another communication device provided in an embodiment of the present application;

[0119] Figure 6 It is a structural diagram of a terminal device provided in an embodiment of the present application;

[0120] Figure 7 It is a structural diagram of a network device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0121] The following is an explanation of the important terms involved in this application:

[0122] 1. Beam:

[0123] The embodiment of the beam in the NR protocol can be a spatial domain filter, or a spatial filter, or a spatial domain parameter, a spatial parameter, a spatial domain setting, a spatial setting, or quasi-colocation (QCL) information, a QCL assumption, a QCL indication, etc. The beam can be indicated by a transmission configuration indicator state (TCI-state) parameter, or by a spatial relation parameter. Therefore, in this application, the beam can be replaced by a spatial filter, a spatial filter, a spatial parameter, a spatial parameter, a spatial setting, a spatial setting, QCL information, a QCL assumption, a QCL indication, a TCI-state (DL TCI-state, UL TCI-state), a spatial relationship, etc. The above terms are also equivalent to each other. The beam can also be replaced by other terms representing the beam, which are not limited in this application.

[0124] A beam used to transmit a signal may be referred to as a transmission beam (Tx beam), and may also be referred to as a spatial domain transmission filter, a spatial transmission filter, a spatial domain transmission parameter, or a spatial transmission parameter, a spatial domain transmission setting, or a spatial transmission setting. A downlink transmission beam may be indicated by a TCI-state.

[0125] The beam used to receive the signal may be referred to as a reception beam (Rx beam), and may also be referred to as a spatial domain reception filter, a spatial reception filter, a spatial domain reception parameter, or a spatial reception parameter, a spatial domain reception setting, or a spatial reception setting. The uplink transmit beam may be indicated by a spatial relation, or an uplink TCI-state, or an SRS resource (indicating a transmit beam using the SRS). Therefore, the uplink beam may also be replaced by an SRS resource.

[0126] The transmit beam may refer to the distribution of signal strength in different directions of space after the signal is transmitted by the antenna, and the receive beam may refer to the distribution of signal strength in different directions of space of the wireless signal received from the antenna. In addition, the beam may be a wide beam, or a narrow beam, or other types of beams. The beam forming technology may be beamforming technology or other technologies. The beamforming technology may specifically be digital beamforming technology, analog beamforming technology, or hybrid digital / analog beamforming technology.

[0127] Beams generally correspond to resources. For example, when performing beam measurement, the network device measures different beams through different resources. The terminal device feeds back the measured resource quality, and the network device knows the quality of the corresponding beam. During data transmission, beam information is also indicated by its corresponding resources. For example, the network device indicates the information of the physical downlink sharing channel (PDSCH) beam of the terminal device through the TCI field in the downlink control information (DCI).

[0128] Optionally, multiple beams with the same or similar communication characteristics are regarded as one beam. One beam may include one or more antenna ports for transmitting data channels, control channels, and sounding signals. One or more antenna ports forming a beam may also be regarded as an antenna port set.

[0129] In the embodiments of the present application, unless otherwise specified, a beam refers to a transmission beam of a network device. In beam measurement, each beam of a network device corresponds to a resource, so the beam corresponding to the resource can be uniquely identified by the index of the resource.

[0130] 2. TCI-state

[0131] The network device can generate different beams pointing to different transmission directions. In downlink data transmission, when the network device uses a specific beam to send data to the terminal device, it needs to inform the terminal device of the relevant information of the transmission beam it uses, so that the terminal device can use the receiving beam corresponding to the transmission beam to receive the data sent by the network device. In the 3rd generation partnership project (3GPP) R15 / R16 protocol, the network device indicates to the terminal device the relevant information of the transmission beam it uses through the TCI field in the DCI. Specifically, the TCI field size is 3 bits, which can specifically represent 8 different field values ​​(codepoint). Each value of the TCI field corresponds to an index of a TCI-state, and the TCI-state index can uniquely identify a TCI-state. TCI-state includes multiple parameters, and the relevant information of the transmission beam can be determined by these parameters. TCI-state is configured by the network device to each terminal device. Each TCI-state includes its own index TCI-stateId, and two QCL-Info. Each QCL-Info includes a cell field and a bandwidth part (BWP) identifier (Id), which respectively indicate which BWP of which cell the TCI-state applies to, that is, different cells or different BWPs of the same cell can be configured with different QCL-Info. QCL-Info also includes a reference signal (RS) to indicate which reference signal resource forms a QCL relationship. In the R15 / R16 protocol, the word "beam" generally does not appear directly, and beams are generally replaced by other terms. For example, in data transmission and channel measurement, beams correspond to reference signal resources, and one beam corresponds to one reference signal resource. Therefore, when it is said here that a QCL relationship is formed with which reference signal resource, it actually refers to which beam forms a QCL relationship. A QCL relationship refers to two reference signal resources (or two antenna ports, where antenna ports and reference signal resources also correspond one to one) having certain identical spatial parameters. Which specific spatial parameters are the same depends on the type (QCL-Type) of the QCL-Info. QCL-Type can have four values ​​(typeA, typeB, typeC, typeD). Taking typeD as an example, typeD means that two reference signal resources have the same spatial reception parameter information, that is, two beams have the same reception beam. At most one of the two QCL-Info included in TCI-state can be TypeD.

[0132] The following example specifically illustrates how a network device based on the R15 / R16 protocol indicates the receiving beam information of a data transmission beam to a terminal device through TCI-state, including the configuration, activation and indication of TCI-state.

[0133] TCI-state configuration: The network device configures multiple TCI-states to the terminal device through radio resource control (RRC) signaling. These TCI-states all include a QCL-Info of type D. The network device can also configure TCI-states that do not include QCL-info of type D, but these TCI-states are not used for data transmission beam indication, so they are not further explained here.

[0134] TCI-state activation: After the network device configures multiple TCI-states, it needs to activate 8 of them through the medium access control-control element (MAC-CE). These 8 TCI states correspond to the 8 values ​​of the TCI field in the DCI. That is, the 8 values ​​of the TCI field in the DCI correspond to which 8 TCI-states are determined by MAC CE signaling. Figure 1 As shown, Figure 1 is a schematic diagram of a MAC CE structure for activating TCI, fields T0 to T (N-2)*8+7 The indexes corresponding to the first step configuration are 0 to (N-2)*8+7, and the size of each field is 1 bit, and the value can be 0 or 1. A value of 1 indicates that the TCI-state is activated, and a value of 0 indicates that the TCI-state is not activated. Each MAC CE can have 8 activation fields with a value of 1, and the rest are all 0. The TCI-states corresponding to these 8 fields with a value of 1 are the 8 TCI-states corresponding to the 8 values ​​of the TCI field in the DCI. For example, the minimum value of the TCI field, 000, corresponds to the TCI-state with the smallest index activated in the MAC CE, and so on. There are many types of MAC-CE. In addition to MAC-CE used for TCI-state activation, there are also MAC-CEs with many other uses. The present application only relates to MAC-CE used for TCI-state or TCI-state combination activation. Therefore, unless otherwise specified, the MAC-CE described in this application refers to this type of MAC-CE.

[0135] TCI-state indication: The network device indicates a specific TCI-state through the TCI field in the DCI. For example, the value of the TCI field in the DCI sent by the network device to the terminal device is 000, indicating the TCI-state corresponding to 000 adopted by the data transmission beam. The RS contained in the QCL-Info of type D in the TCI-state is the channel state information-reference signal (CSI-RS) with an index of #1, indicating that the beam used for data transmission is the same as the receiving beam corresponding to the CSI-RS with an index of #1. The receiving beam corresponding to the CSI-RS with an index of #1 can be determined through the beam measurement process and is known to the terminal device. Therefore, through the specific value of the TCI field, the terminal device can determine the receiving beam corresponding to the data transmission beam, and thus adopt the corresponding receiving beam to receive data.

[0136] 3. Spatial relation

[0137] In the current protocol, the transmit beam of uplink transmission is indicated by spatial relation, which has a function similar to TCI-state and is used to inform the terminal device which transmit beam to use for uplink data transmission.

[0138] The spatial relation also needs to be configured through RRC signaling first. The spatial relation configuration includes the spatial relation ID, cell ID, target reference signal resource, path loss measurement reference signal, power control parameters, etc. Among them, the target reference signal resource (which can be one of the sounding reference signal (SRS) / synchronization signal and PBCH block (synchronization signal and PBCH block synchronization signal and PBCH block, SSB) / CSI-RS) is used to indicate the corresponding uplink beam. If the uplink transmission adopts spatial relation #1, and the spatial relation #1 includes a target reference signal resource #2, it means that the transmission beam used for the uplink transmission is the transmission / receiving beam of the target reference signal. For example, when the target reference signal resource is the uplink resource SRS, it means that the transmission beam used for the uplink transmission is the transmission beam of the SRS (the transmission beam of the SRS is known). For another example, the target reference signal resource is a downlink resource such as SSB or CSI-RS, which means that the transmit beam used for uplink transmission is the receive beam of the SSB or CSI-RS (the receive beam of the SSB / CSI-RS is known).

[0139] The network device can configure multiple spatial relations for the terminal device. Then one of them is activated through MAC CE for the corresponding data transmission. Uplink transmission includes physical uplink control channel (PUCCH), SRS, physical uplink sharing channel (PUSCH), etc., all of which require corresponding spatial relations. The spatial relation of PUCCH is indicated by MAC-CE signaling. The spatial relation of SRS is also indicated by MAC-CE signaling. When PUSCH is transmitted, it will be associated with a specific SRS and use the spatial relation of the SRS for transmission.

[0140] 4. Antenna panel

[0141] Panel can be an antenna panel of a network device or an antenna panel of a terminal device. An antenna panel generally has one or more antennas, which are arranged into an antenna array to perform beamforming to form a simulated beam. The antenna array can generate simulated beams pointing in different directions. That is to say, multiple simulated beams can be formed on each antenna panel, and beam measurement can be used to determine which simulated beam is the best for the antenna panel. The terminal device can be equipped with multiple antenna panels, which can be distributed in different positions and facing different directions. This can ensure that no matter which direction the terminal device faces, at least one antenna panel is facing the network device and can transmit data with the network device. The terminal device can turn on all antenna panels at the same time for transmission. Alternatively, in order to reduce the power consumption of the terminal device, the terminal device can also use only a single antenna panel for transmission at a time, and other unused antenna panels can be turned off. Whether the antenna panel of the terminal device is turned on or off generally needs to be notified to the network device, that is, the terminal device and the network device generally need to exchange antenna panel status information.

[0142] In the embodiments of the present application, unless otherwise specified, the antenna panel is the antenna panel of the terminal device. In the protocol, the antenna panel can be represented by panel, panel index, etc. In addition, the antenna panel can also be implicitly represented in other ways. For example, the antenna panel can also be represented by an antenna port (such as a CSI-RS port, an SRS port, a demodulation reference signal (DMRS) port, a phase tracking reference signal (PTRS) port, a cell reference signal (CRS) port, a time-frequency tracking reference signal (TRS) port, an SSB port, etc.) or an antenna port group, or by a resource (such as a CSI-RS resource, an SRS resource, a DMRS resource, a PTRS resource, a CRS resource, a TRS resource, an SSB resource, etc.) or a resource group, or by a channel (such as PUCCH, PUSCH, physical random access channel (PRACH), physical downlink control channel (PDCCH), PDSCH, physical broadcast channel (PBCH), etc.), or by a beam, QCL, TCI-state, spatial relation or a configuration in QCL, TCI-state, spatial relation. It can also be characterized by a beam group, a QCL group, a TCI-state group, a spatial relation group, etc. That is to say, the antenna panel or panel identifier described in this application can be replaced by the identifier of the above content.

[0143] like Figure 2 As shown, Figure 2It is an architectural diagram of a communication system provided in an embodiment of the present application. The communication system may include one or more network devices and one or more terminal devices. Among them, the network device may include a main base station and a slave base station, and the coverage of the service cell (carrier) of one or more slave base stations is located within the coverage of the main base station. The terminal device may be located within the coverage of one or more service cells provided by the network device. When there are multiple cells providing services for the terminal device, the terminal device may operate in accordance with carrier aggregation (CA), dual connectivity (DC) or coordinated multi-point transmission, wherein one or more service cells provide at least one parameter set (numerology) and provide wireless resources for the terminal device at the same time.

[0144] The terminal device may be referred to as user equipment (UE), mobile station (MS), mobile terminal (MT), etc., and refers to a device that provides voice and / or data connectivity to the user. For example, a handheld device with wireless connection function, a vehicle-mounted device, etc. At present, some examples of terminals are: mobile phones, tablet computers, laptops, PDAs, mobile internet devices (MID), wearable devices, virtual reality (VR) devices, augmented reality (AR) devices, wireless terminals in industrial control, wireless terminals in self-driving, wireless terminals in remote medical surgery, wireless terminals in smart grids, wireless terminals in transportation safety, wireless terminals in smart cities, wireless terminals in smart homes, etc. The following descriptions are all based on the terminal device as UE.

[0145] A network device refers to a radio access network (RAN) node (or device) that connects a terminal device to a wireless network, and can also be called a base station. At present, some examples of RAN nodes are: evolved Node B (gNB), transmission reception point (TRP), evolved Node B (eNB), radio network controller (RNC), Node B (NB), base station controller (BSC), base transceiver station (BTS), home base station (e.g., home evolved NodeB, or home Node B, HNB), base band unit (BBU), or wireless fidelity (Wifi) access point (AP). In addition, in a network structure, a network device may include a centralized unit (CU) node, a distributed unit (DU) node, or a RAN device including a CU node and a DU node. Among them, the RAN equipment including CU nodes and DU nodes splits the protocol layer of eNB in ​​the long term evolution (LTE) system, puts some functions of the protocol layer under central control of the CU, and distributes the remaining part or all of the functions of the protocol layer in the DU, which is centrally controlled by the CU.

[0146] The communication system can be applicable to a long term evolution (LTE) system, a universal mobile telecommunications system (UMTS) system, a code division multiple access (CDMA) system, a wireless local area network (WLAN) or a fifth generation mobile communication system (5G) or a next generation wireless communication system, etc.

[0147] When transmitting uplink data or downlink data, a specific beam needs to be used. For example, in downlink data transmission, the network device decides what transmit beam to use. The network device notifies the terminal device what receive beam to use. Specifically, the network device sends a DCI to the terminal device, and the DCI contains a TCI field. The TCI field is used to indicate a TCI-state, and the TCI-state is used for downlink data transmission or uplink data transmission. The TCI-state includes a target reference signal resource. For downlink transmission using the TCI-state, the terminal device uses the receive beam corresponding to the target reference signal resource for reception. The receive beam corresponding to the target reference signal resource is known in advance by the terminal device, for example, by measuring the target reference resource. In this way, the network device can indicate the correct receive beam to the terminal device. Similarly, for uplink data transmission using the TCI-state, the terminal device uses the transmit beam corresponding to the target reference signal for transmission, or uses the receive beam corresponding to the target reference signal for transmission in reverse.

[0148] Different channels or reference signals can use different beams. That is, the network device can indicate beams of different channels or reference signals to the terminal device. The network device can also indicate a beam to the terminal device, and the beam is used for multiple channels and / or reference signals at the same time. This beam used for multiple channels and / or reference signals is called a common beam in this application. It should be noted that the name of the common beam indication is for the convenience of description, and it can also be compared with other names. The network device can indicate an uplink common beam to the terminal device for the transmission of multiple uplink channels and / or uplink reference signals. It can also indicate a downlink common beam to the terminal device for the transmission of multiple downlink channels and / or downlink reference signals. It can also indicate an uplink and downlink common beam to the terminal device for the transmission of multiple uplink channels and / or uplink reference signals, as well as multiple downlink channels and / or downlink reference signals. In other words, the uplink and downlink common beams can be used for both uplink transmission and downlink transmission. In this application, the technical details of this application are uniformly described using a common beam. The public beam in the protocol can be specifically TCI-state, spatial relation, or other beam definitions, please refer to the extension of the key term definition section for details. In this application, unless otherwise specified, the public beam can generally refer to any one of the uplink public beam, downlink public beam and uplink and downlink public beam.

[0149] Based on the existing protocol, the terminal device reports the maximum number of pilot resources N (also called the capability N of the terminal device) that can be used for beam management and can be configured by the network terminal device, and the network terminal device configures multiple pilot resources for beam scanning for the terminal device. Among them, the number of configured pilot resources cannot exceed the capability N reported by the terminal device. The terminal device measures the configured pilot resources, and based on the feedback of the measurement results, RSRP is arranged in the order from large to small in the first N beams and reported to the network device. Subsequently, the network device can configure the pilot resources used for beam management as the target reference signal resources of the TCI for downlink data transmission, which are used to guide the receiving beam selection of the terminal device for downlink data reception.

[0150] However, if the number of beams that need to be measured is greater than the capacity N reported by the terminal device, the network device can only select some beams from the beam set and configure them to the terminal device for measurement. If some potential service beams are not among the beams selected by the network device, the beam selection reported by the terminal device may be limited, affecting the air interface transmission capability of the terminal device.

[0151] In order to solve the above technical problems, the embodiments of the present application provide the following solutions.

[0152] like Figure 3 As shown, Figure 3 1 is a flow chart of a communication method provided in an embodiment of the present application. The method mainly comprises the following steps:

[0153] S301, a network device determines configuration information, the configuration information including M first-level pilot resource numbers and X second-level pilot resources, one first-level pilot resource is associated with one or more second-level pilot resources, and both M and X are integers greater than 0.

[0154] The first level of pilot resources may be pilot resources of a wide beam level, corresponding to a wider spatial filtering coverage. The second level of pilot resources may be pilot resources of a narrow beam level, corresponding to a narrower spatial wave coverage. Pilot resources of different levels correspond to spatial filtering pilot resources of different beam widths, and pilot resources of different levels are associated with each other.

[0155] In one implementation, the association relationship between one of the first-level pilot resources and one or more of the second-level pilot resources is a resource association relationship, which may be: a spatial domain filtering inclusion and / or being included association relationship between one of the first-level pilot resources and one or more of the second-level pilot resources.

[0156] Further, the spatial domain filtering including and / or being included relationship between a first-level pilot resource and one or more second-level pilot resources includes one or more of the following: the spatial domain filtering of a first-level pilot resource is greater than or equal to the spatial domain filtering of a second-level pilot resource. Or, the receiving spatial domain filtering of a first-level pilot resource is the same as that of one or more second-level pilot resources. Or, the sending spatial domain filtering of a first-level pilot resource is the same as that of one or more second-level pilot resources.

[0157] For example, a CSI-RS resource transmitted in a wide beam corresponds to multiple CS-RS resources transmitted in a narrow beam. Alternatively, one SSB resource is associated with one or more CSI RS resources, where SSB is a wide beam and CSI-RS is a narrow beam.

[0158] In another implementation, the association relationship between a first-level pilot resource and one or more second-level pilot resources includes: an activation and / or deactivation association relationship between the first-level pilot resource and one or more second-level pilot resources. Further, the activation and / or deactivation association relationship between the first-level pilot resource and one or more second-level pilot resources includes one or more of the following: a first-level pilot resource and one or more second-level pilot resources are activated at the same time; a first-level pilot resource and one or more second-level pilot resources are deactivated at the same time.

[0159] For example, the association relationship of activation and / or deactivation between the first-level pilot resource and one or more second-level pilot resources specifically includes one or more of the following:

[0160] (1) If a wide beam level pilot resource is activated, the narrow beam level pilot resource associated with the wide beam level pilot resource will also be activated.

[0161] (2) If the wide beam level pilot resource is deactivated, the narrow beam level pilot resource associated with the wide beam level pilot resource will also be deactivated.

[0162] (3) If part or all of the narrow beam-level pilot resources corresponding to a certain wide beam-level pilot resource are activated, the wide beam-level pilot resources associated with the narrow beam-level pilot resource will also be activated.

[0163] (4) If part of the narrow beam pilot resources associated with a certain wide beam level pilot resource is deactivated, the activation / deactivation state of the wide beam pilot is not affected.

[0164] (5) If all narrow beam-level pilot resources associated with a certain wide beam-level pilot resource are deactivated, the wide beam-level pilot resource will also be deactivated.

[0165] Specifically, the configuration method of the first-level pilot resources and the second-level pilot resources may include one or more of the following: the first-level pilot resources and the second-level pilot resources are configured in the same pilot resource set. Or, the first-level pilot resources and the second-level pilot resources are configured in different pilot resource sets. Or, the first-level pilot resources and the second-level pilot resources are associated with the same reporting configuration. The following specifically introduces the configuration method of the first-level pilot resources and the second-level pilot resources:

[0166] In the first configuration method, the configuration information includes multiple pilot resource sets, each of the multiple pilot resource sets includes one first-level pilot resource and one or more second-level pilot resources, and one first-level pilot resource is associated with one or more second-level pilot resources.

[0167] Optionally, it can be agreed that a certain pilot resource in the same pilot resource set is a wide beam level pilot resource, and the remaining pilot resources are all narrow beam level pilot resources. For another example, the pilot resource with Resource ID = 0 can be sent in a wide beam, and the pilot resource with Resource ID>0 can be sent in a wide beam.

[0168] As shown in Table 1, the configuration information includes a pilot resource set ResourceSet#0, which includes a pilot resource Resource#0 and N pilot resources Resource#1 to Resource#N. The resource level of pilot resource Resource#0 is 0, indicating that pilot resource Resource#0 is a wide beam level pilot resource. The resource level of pilot resources Resource#1 to Resource#N is 1, indicating that pilot resources Resource#1 to Resource#N are wide beam level pilot resources. The wide beam level pilot resource Resource#0 is associated with N narrow beam level pilot resources Resource#1 to Resource#N.

[0169] Table 1

[0170]

[0171] In a second configuration mode, the configuration information includes a first pilot resource set and a second pilot resource set, the first pilot resource set includes the M first-level pilot resources, the second pilot resource set includes the X second-level pilot resources, the M first-level pilot resources are arranged in order of resource index size, the X second-level pilot resources are arranged in order of resource index size, the i-th first-level pilot resource among the M first-level pilot resources is associated with the (i-1)*j+1-th second-level pilot resource to the i*j-th second-level pilot resource among the X second-level pilot resources, i is an integer greater than 0 and less than or equal to M, j is the number of the second-level pilot resources associated with one first-level pilot resource, and j is an integer greater than 0 and less than or equal to X. The resource index may be a resource ID.

[0172] Optionally, the resource level associated with the pilot resource set may be explicitly configured, that is, a new parameter is added to the existing configuration parameter set, and the new parameter is used to indicate the resource level of the pilot resource set. All pilot resources in the same pilot resource set are associated with the same resource level.

[0173] Alternatively, the resource level associated with the pilot resource set may also be implicitly configured. For example, if ResourceSet ID = 0, it means that one or more pilot resources in the pilot resource set are pilot resources of level 0, corresponding to pilot resources of the wide beam level; if ResourceSet ID = 1, it means that one or more pilot resources in the pilot resource set are pilot resources of level 1, corresponding to pilot resources of the narrow beam level.

[0174] Optionally, a pre-agreed rule may be used to determine the association relationship between pilot resources of different levels. For example, each wide beam level pilot resource corresponds to X narrow beam level pilot resources. Where X = the number of narrow beam level pilot resources / the number of wide beam level pilot resources; the first wide beam level pilot resource is associated with the first to X narrow beam level pilot resources, the second wide beam level pilot resource is associated with the X+1 to 2X narrow beam level pilot resources, and so on.

[0175] As shown in Table 2, the configuration information includes a pilot resource set ResourceSet#0 and a pilot resource set ResourceSet#1. Pilot resource set ResourceSet#0 includes pilot resource Resource#0 and pilot resource Resource#1, and the resource level of pilot resource Resource#0 and pilot resource Resource#1 is 0, indicating that pilot resource Resource#0 and pilot resource Resource#1 are pilot resources of the wide beam level. Pilot resource set ResourceSet#1 includes pilot resource Resource#2 to pilot resource Resource#5, and the resource level of pilot resource Resource#2 to pilot resource Resource#5 is 1, indicating that pilot resource Resource#2 to pilot resource Resource#5 are pilot resources of the narrow beam level. The pilot resource Resource#0 in the pilot resource set ResourceSet#0 is associated with the pilot resources Resource#2 and Resource#3 in ResourceSet#1; the pilot resource Resource#1 in ResourceSet#0 is associated with the pilot resources Resource#4 and Resource#5 in ResourceSet#1.

[0176] Table 2

[0177]

[0178] Alternatively, the association relationship between pilot resources of different levels may be configured in an explicit manner. For example, an associated resource set identifier (ResourceSet ID) or / and resource identifier (ResourceID) may be configured for each pilot resource Resource.

[0179] For example, as shown in Table 3, the configuration information includes a pilot resource set ResourceSet#0 and a pilot resource set ResourceSet#1. Pilot resource set ResourceSet#0 includes pilot resource Resource#0 and pilot resource Resource#1, and pilot resource set ResourceSet#1 includes pilot resource Resource#2 to pilot resource Resource#5. Among them, pilot resource Resource#0 in pilot resource set ResourceSet#0 is associated with pilot resource Resource#2 and pilot resource Resource#3 in pilot resource set ResourceSet#1. Pilot resource Resource#1 in pilot resource set ResourceSet#0 is associated with pilot resource Resource#4 and pilot resource Resource#5 in pilot resource set ResourceSet#1.

[0180] Table 3

[0181]

[0182] In a third configuration mode, the configuration information includes a third pilot resource set, the third pilot resource set includes the M first-level pilot resources and the X second-level pilot resources, the M first-level pilot resources and the X second-level pilot resources are arranged in order of resource index size, the i-th first-level pilot resource among the M first-level pilot resources is associated with the (i-1)*j+1-th second-level pilot resource to the i*j-th second-level pilot resource among the X second-level pilot resources, the i is an integer greater than 0 and less than or equal to M, the j is the number of the second-level pilot resources associated with one first-level pilot resource, and the j is an integer greater than 0 and less than or equal to X. The resource index may be a resource identifier Resource ID.

[0183] Optionally, the level of each pilot resource can be configured in an explicit manner, and the level is used to indicate the resource level to which each pilot resource belongs, and pilot resources of different levels can be associated according to a rule. For example, a pilot resource of a wide beam level can be mapped to multiple pilot resources of a narrow beam level in the order of Resource ID numbers from small to large.

[0184] As shown in Table 4, the configuration information includes a pilot resource set ResourceSet#0, and the pilot resource set ResourceSet#0 includes pilot resource Resource#0-pilot resource Resource#5. Among them, the resource level of pilot resource Resource#0 and pilot resource Resource#1 is 0, corresponding to the pilot resource of the wide beam level. The resource level of pilot resource Resource#2 and pilot resource Resource#5 is 1, corresponding to the pilot resource of the narrow beam level. Pilot resource Resource#0 is associated with pilot resource Resource#2 and pilot resource Resource#3, and pilot resource Resource#1 is associated with pilot resource Resource#4 and pilot resource Resource#5.

[0185] Table 4

[0186]

[0187] Alternatively, a parameter K may be configured for the pilot resource set ResourceSet instead of the resource level. The parameter K is used to indicate that a pilot resource of a wide beam level corresponds to K (for example, K=2) pilot resources of a narrow beam level, and then the pilot resources Resource in the pilot resource set ResourceSet are associated according to a certain rule. For example, in the order of Resource ID numbers from small to large, a pilot resource of a wide beam level corresponds to multiple pilot resources of a narrow beam level.

[0188] In a fourth configuration manner, the configuration information includes a fourth pilot resource set, the fourth pilot resource set includes the M first-level pilot resources, and one first-level pilot resource is associated with one or more second-level pilot resources.

[0189] For example, as shown in Table 5, the configuration information includes a pilot resource set ResourceSet#0, and the pilot resource set ResourceSet#0 includes pilot resource Resource#0 and pilot resource Resource#1. Pilot resource Resource#0 and pilot resource Resource#1 are pilot resources of the wide beam level. The resource IDs of the pilot resources of the narrow beam level associated with pilot resource Resource#0 are 2 and 3, and the resource IDs of the pilot resources of the narrow beam level associated with pilot resource Resource#1 are 4 and 5.

[0190] Table 5

[0191]

[0192] The above-mentioned pilot resource set can be a non-zero power (NZP) CSI-RS ResourceSet, or a CSI interference measurement (IM) ResourceSet, or a CSI and SSB ResourceSet, or an SRS resourceSet.

[0193] The above-mentioned pilot resource can be an NZP CSI-RS Resource, or a CSI-IM Resource, or a CSI Resource, or a CSI and SSB Resource, or an SSB Resource, or an SRS resource.

[0194] The reporting amounts associated with the above-mentioned one or more pilot resource sets are the same, and the reporting amounts associated with all pilot resources in the same pilot resource set are the same. The reporting amount can be any of the following: 'none', 'cri-RI-PMI-CQI', 'cri-RI-i1', 'cri-RI-i1-CQI', 'cri-RI-CQI', 'cri-RSRP', 'cri-SINR', 'ssb-Index-RSRP', 'ssb-Index-SINR', 'cri-RI-LI-PMI-CQI', 'cri-RSRP-Index', 'ssb-Index-RSRP-Index', 'cri-SINR-Index' or 'ssb-Index-SINR-Index'.

[0195] S302: The network device sends the configuration information to the terminal device.

[0196] S303, the terminal device selects N first-level pilot resources from the M first-level pilot resources, and measures Y second-level pilot resources among the X second-level pilot resources that are associated with the N first-level pilot resources, where N is an integer greater than or equal to 1 and less than or equal to M, and Y is an integer greater than or equal to 1 and less than or equal to X.

[0197] In one implementation, the terminal device measures M first-level pilot resources to determine the channel state information of the M first-level pilot resources; the channel state information is selected from the M first-level pilot resources and arranged in the first N first-level pilot resources in descending order. Then, the terminal device measures Y second-level pilot resources associated with the N first-level pilot resources among the X second-level pilot resources to determine the channel state information of each second-level pilot resource among the Y second-level pilot resources; based on the channel state information, Z second-level pilot resources are selected from the Y second-level pilot resources. Further, the second-level pilot resources whose channel state information is arranged in the first Z in descending order can be selected from the Y second-level pilot resources. Z is an integer greater than or equal to 1 and less than or equal to Y.

[0198] In another implementation, the terminal device may measure M first-level pilot resources to determine the channel state information of each of the M first-level pilot resources. Select N first-level pilot resources whose difference between the channel state information and the first channel state information is less than the first threshold from the M first-level pilot resources, wherein the first channel state information is the maximum value of the channel state information of the M first-level pilot resources. Then, the terminal device measures Y second-level pilot resources associated with the N first-level pilot resources among the X second-level pilot resources to determine the channel state information of each of the Y second-level pilot resources; based on the channel state information, select Z second-level pilot resources from the Y second-level pilot resources. Further, the second-level pilot resources whose channel state information is arranged in descending order in the Y second-level pilot resources can be selected from the Y second-level pilot resources. Z is an integer greater than or equal to 1 and less than or equal to Y.

[0199] For example, when the configuration information sent by the network device to the terminal device includes wide beam level pilot resources Resource#0 and pilot resource Resource#1, narrow beam level pilot resources Resource#2, pilot resource Resource#3, pilot resource Resource#4 and pilot resource Resource#5, and pilot resource Resource#0 is associated with {pilot resource Resource#2, pilot resource Resource#3}, and pilot resource Resource#1 is associated with {pilot resource Resource#4, pilot resource Resource#5}; at this time, the terminal device first obtains the channel state information RSRP0 of pilot resource Resource#0 and the channel state information RSRP1 of pilot resource Resource#1. SRP1, if RSRP0>RSRP1, and RSRP0-RSRP1>the first threshold value, the terminal device measures the pilot resource Resource#2 and the pilot resource Resource#3, obtains the channel state information RSRP2 of the pilot resource Resource#2 and the channel state information RSRP3 of the pilot resource Resource#3, and no longer calculates the channel state information of the pilot resource Resource#4 and the pilot resource Resource#5; if RSRP0>RSRP1, and RSRP0-RSRP1<=the first threshold value, the terminal device needs to measure the channel state information of the pilot resource Resource#2, the pilot resource Resource#3, the pilot resource Resource#4 and the pilot resource Resource#5.

[0200] The first threshold may be configured by the network device for the terminal device, may be pre-agreed by the protocol, or may be determined by the terminal device itself. The N may be configured by the network device for the terminal device, may be pre-agreed by the protocol, or may be determined by the terminal device itself.

[0201] The channel state information includes one or more of the following: signal to interference plus noise ratio (SINR), reference signal receiving power (RSRP), reference signal receiving quality (RSRQ), rank indication (RI), channel quality indicator (CQI), and precoding matrix indicator (PMI).

[0202] Optionally, the communication method in the embodiment of the present application may further include the following steps:

[0203] S304, the terminal device sends a measurement result to the network device, wherein the measurement result may include one or more channel state information and / or one or more pilot resource indexes.

[0204] In one implementation, the terminal device may measure M first-level pilot resources to determine the channel state information of each of the M first-level pilot resources, and measure Y second-level pilot resources associated with the N first-level pilot resources among the X second-level pilot resources to determine the channel state information of the Y second-level pilot resources. One or more channel state information is selected from the channel state information of the M first-level pilot resources and the channel state information of the Y second-level pilot resources to report to the network device.

[0205] In another implementation, the terminal device selects one or more pilot resources from Y second-level pilot resources; or, selects one or more pilot resources from M first-level pilot resources and Y second-level pilot resources; or, selects one or more pilot resources from X second-level pilot resources; or, selects one or more pilot resources from M first-level pilot resources and X second-level pilot resources; and sends indexes of one or more pilot resources to the network device.

[0206] Among them, the index of the pilot resources includes one or more of the following: the global resource index of the first-level pilot resources, the local resource index of the first-level pilot resources, the global resource index of the second-level pilot resources, the local resource index of the second-level pilot resources, the level index of the first-level pilot resources, and the level index of the second-level pilot resources.

[0207] For example, the configuration information sent by the network device to the terminal device includes wide beam level pilot resources Resource#0 and pilot resource Resource#1, narrow beam level pilot resources Resource#2, pilot resource Resource#3, pilot resource Resource#4 and pilot resource Resource#5, and pilot resource Resource#0 is associated with {pilot resource Resource#2, pilot resource Resource#3}, and pilot resource Resource#1 is associated with {pilot resource Resource#4, pilot resource Resource#5}.

[0208] In one implementation method, the index of the pilot resource reported by the terminal device is a local resource index. The terminal device sorts all pilot resources associated with the reported configuration from small to large according to the index value of the pilot resource, and the local resource index 0 represents the first pilot resource after sorting, the local resource index 1 represents the second pilot resource after sorting, and so on; wherein the pilot resources may belong to the same level or different levels, and may belong to the same pilot resource set or different pilot resource sets.

[0209] As shown in Table 6, the terminal device reports two pilot resource indexes, the pilot resource corresponding to CRI1(0) is pilot resource Resource#0, and the pilot resource corresponding to CRI2(2) is pilot resource Resource#2.

[0210] Table 6

[0211]

[0212] In one implementation method, the terminal device only reports pilot resources of a certain level, and the terminal device sorts all pilot resources of a certain level associated with the reporting configuration from small to large according to the pilot resource index value, and the local resource index 0 represents the first pilot resource of this level after sorting, the local resource index 1 represents the second pilot resource of this level after sorting, and so on; wherein, the pilot resources of the same level may belong to the same pilot resource set or different pilot resource sets.

[0213] As shown in Table 7, if only the pilot resources of the narrow beam level are reported, the terminal device reports two pilot resource indexes, the pilot resource corresponding to CRI1(0) is pilot resource Resource#2, and the pilot resource corresponding to CRI2(2) is pilot resource Resource#4.

[0214] Table 7

[0215]

[0216] In one implementation method, the terminal device only reports pilot resources of a certain level. The terminal device sorts all pilot resources of a certain level of a pilot resource set associated with the reporting configuration from small to large according to the pilot resource index value. The local resource index 0 represents the first pilot resource of this level after sorting, the local resource index 1 represents the second pilot resource of this level after sorting, and so on.

[0217] As shown in Table 8, the network device configures two pilot resource sets resourceSet for the terminal device. The first pilot resource set resourceSet#0 includes pilot resources Resource#0, Resource#2, and Resource#3; the second pilot resource set resourceSet#1 is a narrow beam level pilot resource set, including pilot resources Resource#1, Resource#4, and Resource#5. The terminal device reports an index (1) of a pilot resource set and a local resource index (0, 1). The index (1) of the pilot resource set informs the network device that the pilot resources reported are narrow beam level pilot resources in the pilot resource set resourceSet#0, and the pilot resources corresponding to the local resource index (0, 1) are pilot resources Resource#2 and pilot resources Resource#3.

[0218] Table 8

[0219]

[0220] Optionally, the level may be agreed upon in advance by a protocol, or indicated by a network device to a terminal device, or determined autonomously by a terminal device.

[0221] Optionally, if the level of the reported pilot resources is agreed upon by the protocol, it can be agreed that only the index of the pilot resource with the smallest level value (for example, the pilot resource of the wide beam level) is reported, or it can be agreed that only the index of the pilot resource with the largest level value (for example, the pilot resource of the narrow beam level) is reported.

[0222] Optionally, if the level of reported pilot resources is decided autonomously by the terminal device, the terminal device also needs to report additional level information, for example, by reporting the pilot resource set index to inform the network device of the pilot resource set associated with the currently reported local resource index, and / or the pilot level information to which it belongs. Specifically, the terminal device reports multiple pilot resource indexes, the first pilot resource index CRI1 is the index of the pilot resource set (ResourceSet ID), which is used to characterize the resource set ResourceSet to which the reported pilot resource belongs, or the resource level information to which it belongs; the second and subsequent pilot resource indexes are local resource indexes (local Resource ID) within the pilot resource set indicated by CRI1, which are used to characterize the local resource index of the reported pilot resource.

[0223] As shown in Table 9, the network device configures two pilot resource sets resourceSet for the terminal device. The first pilot resource set resourceSet#0 is a wide beam level pilot resource set, including pilot resources Resource#0 and Resource#1; the second pilot resource set resourceSet#1 is a narrow beam level pilot resource set, including pilot resources Resource#2, Resource#3, Resource#4 and Resource#5. The terminal device reports an index (1) of a pilot resource set and a local resource index (0, 1, 2). The index (1) of the pilot resource set informs the network device that the pilot resource reported is a narrow beam level pilot resource, and the pilot resources corresponding to the local resource index (0, 1, 2) are pilot resource Resource#2, pilot resource Resource#3, and pilot resource Resource#4.

[0224] Table 9

[0225]

[0226] Optionally, if the resource index reported by the terminal device is a global resource index, it is not expected that pilot resources with the same resource index are associated with different resource levels. The network device can implicitly know the resource level of the pilot resource corresponding to the reported resource index through the global resource index reported by the terminal device.

[0227] Specifically, the terminal device reports the index of one or more pilot resources, and the reported multiple pilot resource indexes may belong to the same resource level or may belong to different resource levels.

[0228] As shown in Table 10, CRI1(0) reported by the terminal device corresponds to the pilot resource Resource#0 of the wide beam level, CRI2(2) corresponds to the pilot resource Resource#2 of the narrow beam level, CRI3(3) corresponds to the pilot resource Resource#3 of the narrow beam level, and CRI4(4) corresponds to the pilot resource Resource#4 of the narrow beam level.

[0229] Table 10

[0230]

[0231] Optionally, the terminal device also needs to report the channel state information of the pilot resources, and the number of reported channel state information may be less than or equal to the number of reported pilot resource indexes. For example, as shown in Table 9, the terminal device reports 4 pilot resource indexes and 3 channel state information, the first channel state information corresponds to the index of the second pilot resource, the second channel state information corresponds to the index of the third pilot resource, and the third channel state information corresponds to the index of the fourth pilot resource.

[0232] Optionally, the above CRI may also be replaced by SSBIndex, or an index identifier of other resources.

[0233] S305, the network device determines the transmission configuration indication TCI information according to the measurement result, sends the TCI information to the terminal device, and the terminal device determines the pilot resources in the configuration information for the pilot or the reference for the data transmission spatial domain filtering according to the TCI information. The network device may determine the pilot resources associated with the TCI information in the following ways:

[0234] (1) Only reported pilot resources can be configured as pilots, or pilot resources associated with TCI information for data transmission.

[0235] (2) The first-level pilot resources and the reported pilot resources may be configured as pilot resources or pilot resources associated with TCI information of data transmission.

[0236] (3) The reported pilot resources and the first-level pilot resources associated with the reported second-level pilot resources may be configured as pilots, or pilot resources associated with TCI information of data transmission.

[0237] (4) All configured pilot resources can be configured as pilots, or pilot resources associated with TCI information for data transmission. It should be noted that this method can be used only when the number of configured pilot resources does not exceed the capacity N reported by the terminal device.

[0238] (5) The reported pilot resources and all second-level pilot resources may be configured as pilots, or pilot resources associated with TCI information of data transmission.

[0239] In an embodiment of the present application, the terminal device selects part of the first-level pilot resources from multiple first-level pilot resources based on the association relationship between pilot resources of different levels, measures and reports the second-level pilot resources associated with part of the first-level pilot resources in multiple second-level pilot resources, and the network device indicates the corresponding TCI information for subsequent uplink and downlink data transmission. Thus, without increasing the measurement complexity of the terminal device, it is possible to select potential service pilot resources from a larger pilot resource set for measurement and reporting. Moreover, under the same number of pilot resource sets, the terminal device selects part of the pilot resources for measurement, which reduces the complexity of the terminal device measurement without affecting the selection of potential service pilot resources, and ensures the air interface transmission capability of the terminal device.

[0240] It can be understood that in the above-mentioned method embodiments, the methods and operations implemented by the terminal device can also be implemented by components that can be used for the terminal device (such as chips or circuits), and the methods and operations implemented by the network device can also be implemented by components that can be used for the network device (such as chips or circuits).

[0241] The embodiment of the present application can divide the functional modules of the terminal device or network device according to the above method example. For example, each functional module can be divided corresponding to each function, or two or more functions can be integrated into one processing module. The above integrated module can be implemented in the form of hardware or in the form of software functional modules. It should be noted that the division of modules in the embodiment of the present application is schematic and is only a logical function division. There may be other division methods in actual implementation. The following is an example of using each functional module divided according to each function to illustrate.

[0242] Above, combined Figure 3 The method provided by the embodiment of the present application is described in detail. Figures 4 to 5 The communication device provided in the embodiment of the present application is described in detail. It should be understood that the description of the device embodiment corresponds to the description of the method embodiment, so the contents not described in detail can be referred to the method embodiment above, and will not be repeated here for the sake of brevity.

[0243] See also Figure 4 , Figure 4 40 is a schematic diagram of a communication device provided in an embodiment of the present application. The communication device may include a receiving module 401, a processing module 402 and a sending module 403.

[0244] The communication device can implement the steps or processes executed by the terminal device in the above method embodiment, for example, it can be a terminal device, or a chip or circuit configured in the terminal device. The receiving module 401 and the sending module 403 are used to perform the sending and receiving related operations on the terminal device side in the above method embodiment, and the processing module 402 is used to perform the processing related operations of the terminal device in the above method embodiment.

[0245] A receiving module 401 is configured to receive configuration information sent by a network device, wherein the configuration information includes M first-level pilot resource numbers and X second-level pilot resources, one first-level pilot resource is associated with one or more second-level pilot resources, and both M and X are integers greater than 0;

[0246] The processing module 402 is used to select N first-level pilot resources from the M first-level pilot resources, and measure Y second-level pilot resources associated with the N first-level pilot resources among the X second-level pilot resources, where N is an integer greater than or equal to 1 and less than or equal to M, and Y is an integer greater than or equal to 1 and less than or equal to X.

[0247] Optionally, the configuration manner of the first-level pilot resources and the second-level pilot resources includes one or more of the following:

[0248] The first-level pilot resources and the second-level pilot resources are configured in the same pilot resource set; or

[0249] The first-level pilot resources and the second-level pilot resources are configured in different pilot resource sets; or

[0250] The first-level pilot resources and the second-level pilot resources are associated with the same reporting configuration.

[0251] Optionally, the association relationship between one first-level pilot resource and one or more second-level pilot resources includes one or more of the following:

[0252] a spatial filtering inclusion and / or inclusion-involved association relationship between one first-level pilot resource and one or more second-level pilot resources; or

[0253] An activation and / or deactivation association relationship between one first-level pilot resource and one or more second-level pilot resources.

[0254] Optionally, the spatial domain filtering inclusion and / or included association relationship between the one first-level pilot resource and one or more second-level pilot resources includes one or more of the following:

[0255] A spatial domain filtering of the first-level pilot resource is greater than or equal to a spatial domain filtering of the second-level pilot resource; or

[0256] The reception spatial domain filtering of one first-level pilot resource and one or more second-level pilot resources is the same; or

[0257] The transmission spatial domain filtering of one first-level pilot resource and one or more second-level pilot resources is the same.

[0258] Optionally, the activation and / or deactivation association relationship between the one first-level pilot resource and one or more second-level pilot resources includes one or more of the following:

[0259] One of the first-level pilot resources and one or more of the second-level pilot resources are activated simultaneously; or

[0260] One of the first-level pilot resources and one or more of the second-level pilot resources are deactivated simultaneously.

[0261] Optionally, the configuration information includes a first pilot resource set and a second pilot resource set, the first pilot resource set includes the M first-level pilot resources, the second pilot resource set includes the X second-level pilot resources, the M first-level pilot resources are arranged in order of resource index size, the X second-level pilot resources are arranged in order of resource index size, the i-th first-level pilot resource among the M first-level pilot resources is associated with the (i-1)*j+1-th second-level pilot resources to the i*j-th second-level pilot resources among the X second-level pilot resources, i is an integer greater than 0 and less than or equal to M, j is the number of the second-level pilot resources associated with one first-level pilot resource, and j is an integer greater than 0 and less than or equal to X.

[0262] Optionally, the configuration information includes a third pilot resource set, the third pilot resource set including the M first-level pilot resources and the X second-level pilot resources, the M first-level pilot resources and the X second-level pilot resources are arranged in order of resource index size, the i-th first-level pilot resource among the M first-level pilot resources is associated with the (i-1)*j+1-th second-level pilot resource to the i*j-th second-level pilot resource among the X second-level pilot resources, i is an integer greater than 0 and less than or equal to M, j is the number of the second-level pilot resources associated with one first-level pilot resource, and j is an integer greater than 0 and less than or equal to X.

[0263] Optionally, the configuration information includes a fourth pilot resource set, the fourth pilot resource set includes the one first-level pilot resource and k second-level pilot resources, the k is the number of the second equal-frequency resources associated with one first-level pilot resource, and the k is an integer greater than 0.

[0264] Optionally, the processing module 402 is further configured to select one or more pilot resources from the Y second-level pilot resources; or, select one or more pilot resources from the M first-level pilot resources and the Y second-level pilot resources; or, select one or more pilot resources from the X second-level pilot resources; or, select one or more pilot resources from the M first-level pilot resources and the X second-level pilot resources;

[0265] The sending module 403 is configured to send the index of the one or more pilot resources to the network device.

[0266] Optionally, the index of the pilot resources includes one or more of the following: the global resource index of the first-level pilot resources, the local resource index of the first-level pilot resources, the global resource index of the second-level pilot resources, the local resource index of the second-level pilot resources, the level index of the first-level pilot resources, and the level index of the second-level pilot resources.

[0267] Optionally, the processing module 402 is further configured to determine the channel state information of the M first-level pilot resources, and select the channel state information from the M first-level pilot resources and arrange them in the first N first-level pilot resources in descending order; or

[0268] The processing module 402 is also used to determine the channel state information of the M first-level pilot resources, and select N first-level pilot resources whose difference value between the channel state information and the first channel state information is less than a first threshold from the M first-level pilot resources, wherein the first channel state information is the maximum value among the channel state information of the M first-level pilot resources.

[0269] Optionally, the processing module 402 is further used to measure Y second-level pilot resources among the X second-level pilot resources that are associated with the N first-level pilot resources, and determine the channel state information of the Y second-level pilot resources; and select one or more channel state information from the channel state information of the M first-level pilot resources and the channel state information of the Y second-level pilot resources to report to the network device.

[0270] Optionally, the channel state information includes one or more of the following: signal-to-noise ratio SINR, reference signal received power RSRP, reference signal received quality RSRQ, rank indication RI, channel quality indication CQI, and precoding matrix indication PMI.

[0271] It should be noted that the implementation of each module can also refer to Figure 3 The corresponding description of the method embodiment shown executes the method and functions performed by the terminal device in the above embodiment.

[0272] See also Figure 5 , Figure 5 5 is a schematic diagram of the structure of a communication device provided in an embodiment of the present application. The communication device may include a receiving module 501, a processing module 502 and a sending module 503.

[0273] The communication device can implement the steps or processes executed by the network device in the above method embodiment, for example, it can be a network device, or a chip or circuit configured in the network device. The receiving module 501 and the sending module 503 are used to perform the sending and receiving related operations on the network device side in the above method embodiment, and the processing module 502 is used to perform the processing related operations of the network device in the above method embodiment.

[0274] The processing module 502 is configured to determine configuration information, where the configuration information includes M first-level pilot resource numbers and X second-level pilot resources, one first-level pilot resource is associated with one or more second-level pilot resources, and both M and X are integers greater than 0;

[0275] The sending module 503 is used to send the configuration information to the terminal device, where the configuration information is used to indicate that N first-level pilot resources are selected from the M first-level pilot resources, and Y second-level pilot resources associated with the N first-level pilot resources among the X second-level pilot resources are measured, where N is an integer greater than or equal to 1 and less than or equal to M, and Y is an integer greater than or equal to 1 and less than or equal to X.

[0276] Optionally, the configuration manner of the first-level pilot resources and the second-level pilot resources includes one or more of the following:

[0277] The first-level pilot resources and the second-level pilot resources are configured in the same pilot resource set; or

[0278] The first-level pilot resources and the second-level pilot resources are configured in different pilot resource sets; or

[0279] The first-level pilot resources and the second-level pilot resources are associated with the same reporting configuration.

[0280] Optionally, the association relationship between one first-level pilot resource and one or more second-level pilot resources includes one or more of the following:

[0281] a spatial filtering inclusion and / or inclusion-involved association relationship between one first-level pilot resource and one or more second-level pilot resources; or

[0282] An activation and / or deactivation association relationship between one first-level pilot resource and one or more second-level pilot resources.

[0283] Optionally, the spatial domain filtering inclusion and / or included association relationship between the one first-level pilot resource and one or more second-level pilot resources includes one or more of the following:

[0284] A spatial domain filtering of the first-level pilot resource is greater than or equal to a spatial domain filtering of the second-level pilot resource; or

[0285] The reception spatial domain filtering of one first-level pilot resource and one or more second-level pilot resources is the same; or

[0286] The transmission spatial domain filtering of one first-level pilot resource and one or more second-level pilot resources is the same.

[0287] Optionally, the activation and / or deactivation association relationship between the one first-level pilot resource and one or more second-level pilot resources includes one or more of the following:

[0288] One of the first-level pilot resources and one or more of the second-level pilot resources are activated simultaneously; or

[0289] One of the first-level pilot resources and one or more of the second-level pilot resources are deactivated simultaneously.

[0290] Optionally, the configuration information includes a first pilot resource set and a second pilot resource set, the first pilot resource set includes the M first-level pilot resources, the second pilot resource set includes the X second-level pilot resources, the M first-level pilot resources are arranged in order of resource index size, the X second-level pilot resources are arranged in order of resource index size, the i-th first-level pilot resource among the M first-level pilot resources is associated with the (i-1)*j+1-th second-level pilot resources to the i*j-th second-level pilot resources among the X second-level pilot resources, i is an integer greater than 0 and less than or equal to M, j is the number of the second-level pilot resources associated with one first-level pilot resource, and j is an integer greater than 0 and less than or equal to X.

[0291] Optionally, the configuration information includes a third pilot resource set, the third pilot resource set including the M first-level pilot resources and the X second-level pilot resources, the M first-level pilot resources and the X second-level pilot resources are arranged in order of resource index size, the i-th first-level pilot resource among the M first-level pilot resources is associated with the (i-1)*j+1-th second-level pilot resource to the i*j-th second-level pilot resource among the X second-level pilot resources, i is an integer greater than 0 and less than or equal to M, j is the number of the second-level pilot resources associated with one first-level pilot resource, and j is an integer greater than 0 and less than or equal to X.

[0292] Optionally, the configuration information includes a fourth pilot resource set, the fourth pilot resource set includes the one first-level pilot resource and k second-level pilot resources, the k is the number of the second equal-frequency resources associated with one first-level pilot resource, and the k is an integer greater than 0.

[0293] Optionally, the receiving module 501 is used to receive the index of one or more pilot resources sent by the terminal device, where the one or more pilot resources are selected from the Y second-level pilot resources, or selected from the M first-level pilot resources and the Y second-level pilot resources, or selected from the X second-level pilot resources, or selected from the M first-level pilot resources and the X second-level pilot resources.

[0294] Optionally, the index of the pilot resources includes one or more of the following: the global resource index of the first-level pilot resources, the local resource index of the first-level pilot resources, the global resource index of the second-level pilot resources, the local resource index of the second-level pilot resources, the level index of the first-level pilot resources, and the level index of the second-level pilot resources.

[0295] Optionally, the receiving module 501 is used to receive one or more channel state information sent by the terminal device, and the one or more channel state information is selected from the channel state information of the M first-level pilot resources and the channel state information of the Y second-level pilot resources.

[0296] Optionally, the channel state information includes one or more of the following: signal-to-noise ratio SINR, reference signal received power RSRP, reference signal received quality RSRQ, rank indication RI, channel quality indication CQI, and precoding matrix indication PMI.

[0297] It should be noted that the implementation of each module can also refer to Figure 3 The corresponding description of the method embodiment shown executes the method and functions performed by the network device in the above embodiment.

[0298] Figure 6 is a schematic diagram of the structure of a terminal device provided in an embodiment of the present application. The terminal device can be applied to Figure 2 In the system shown, the functions of the terminal device in the above method embodiment are executed, or the steps or processes executed by the terminal device in the above method embodiment are realized.

[0299] like Figure 6 As shown, the terminal device includes a processor 601 and a transceiver 602. Optionally, the terminal device also includes a memory 603. The processor 601, the transceiver 602 and the memory 603 can communicate with each other through an internal connection path to transmit control and / or data signals. The memory 603 is used to store a computer program, and the processor 601 is used to call and run the computer program from the memory 603 to control the transceiver 602 to send and receive signals. Optionally, the terminal device may also include an antenna for sending the uplink data or uplink control signaling output by the transceiver 602 through a wireless signal.

[0300] The processor 601 and the memory 603 may be combined into a processing device, and the processor 601 is used to execute the program code stored in the memory 603 to implement the above functions. In specific implementation, the memory 603 may also be integrated into the processor 601, or independent of the processor 601. Figure 4 Corresponding to the processing module in.

[0301] The transceiver 602 can be used with Figure 4The receiving module and the sending module in the embodiment correspond to each other, and may also be referred to as a transceiver unit or a transceiver module. The transceiver 602 may include a receiver (or receiver, receiving circuit) and a transmitter (or transmitter, transmitting circuit). The receiver is used to receive signals, and the transmitter is used to transmit signals.

[0302] It should be understood that Figure 6 The terminal equipment shown is capable of implementing Figure 3 The method embodiment shown involves various processes of the terminal device. The operations and / or functions of each module in the terminal device are respectively to implement the corresponding processes in the above method embodiment. For details, please refer to the description in the above method embodiment. To avoid repetition, the detailed description is appropriately omitted here.

[0303] The processor 601 can be used to execute the actions implemented by the terminal device in the previous method embodiment, and the transceiver 602 can be used to execute the actions of the terminal device sending to or receiving from the terminal device described in the previous method embodiment. Please refer to the description in the previous method embodiment for details, which will not be repeated here.

[0304] Among them, the processor 601 can be a central processing unit, a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field programmable gate array or other programmable logic devices, transistor logic devices, hardware components or any combination thereof. It can implement or execute various exemplary logic blocks, modules and circuits described in conjunction with the disclosure of this application. The processor 601 can also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of a digital signal processor and a microprocessor, and so on. The communication bus 604 can be a peripheral component interconnect standard PCI bus or an extended industrial standard architecture EISA bus, etc. The bus can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Figure 6Only one thick line is used to represent it, but it does not mean that there is only one bus or one type of bus. The communication bus 604 is used to realize the connection communication between these components. Among them, the transceiver 602 in the embodiment of the present application is used to communicate signaling or data with other node devices. The memory 603 may include volatile memory, such as nonvolatile dynamic random access memory (NVRAM), phase change random access memory (PRAM), magnetoresistive random access memory (MRAM), etc., and may also include non-volatile memory, such as at least one disk storage device, electrically erasable programmable read-only memory (EEPROM), flash memory devices, such as NOR flash memory or NAND flash memory, semiconductor devices, such as solid state disk (SSD), etc. The memory 603 may also be at least one storage device located away from the aforementioned processor 601. The memory 603 may also optionally store a set of computer program codes or configuration information. Optionally, the processor 601 may also execute a program stored in the memory 603. The processor may cooperate with the memory and the transceiver to execute any one of the methods and functions of the terminal device in the above-mentioned application embodiments.

[0305] Figure 7 is a schematic diagram of the structure of a network device provided in an embodiment of the present application. The network device can be applied to Figure 2 In the system shown, the functions of the network device in the above method embodiment are executed, or the steps or processes executed by the network device in the above method embodiment are realized.

[0306] like Figure 7 As shown, the network device includes a processor 701 and a transceiver 702. Optionally, the network device also includes a memory 703. The processor 701, the transceiver 702 and the memory 703 can communicate with each other through an internal connection path to transmit control and / or data signals. The memory 703 is used to store a computer program, and the processor 701 is used to call and run the computer program from the memory 703 to control the transceiver 702 to send and receive signals. Optionally, the network device may also include an antenna for sending the uplink data or uplink control signaling output by the transceiver 702 through a wireless signal.

[0307] The processor 701 and the memory 703 may be combined into a processing device, and the processor 701 is used to execute the program code stored in the memory 703 to implement the above functions. In specific implementation, the memory 703 may also be integrated into the processor 701, or independent of the processor 701. Figure 5 Corresponding to the processing module in.

[0308] The transceiver 702 can be used with Figure 5 The receiving module and the sending module in the embodiment correspond to each other, and may also be referred to as a transceiver unit or a transceiver module. The transceiver 702 may include a receiver (or receiver, receiving circuit) and a transmitter (or transmitter, transmitting circuit). The receiver is used to receive signals, and the transmitter is used to transmit signals.

[0309] It should be understood that Figure 7 The network equipment shown can achieve Figure 3 The method embodiment shown involves various processes of the network device. The operations and / or functions of each module in the network device are respectively to implement the corresponding processes in the above method embodiment. For details, please refer to the description in the above method embodiment. To avoid repetition, the detailed description is appropriately omitted here.

[0310] The processor 701 can be used to execute the actions implemented by the network device in the previous method embodiment, and the transceiver 702 can be used to execute the actions of the network device sending to or receiving from the network device described in the previous method embodiment. Please refer to the description in the previous method embodiment for details, which will not be repeated here.

[0311] The processor 701 may be any of the above mentioned processors. The communication bus 704 may be a PCI bus or an EISA bus. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Figure 7 Only one thick line is used to represent it, but it does not mean that there is only one bus or one type of bus. The communication bus 704 is used to realize the connection and communication between these components. Among them, the transceiver 702 of the device in the embodiment of the present application is used to communicate signaling or data with other devices. The memory 703 can be the various types of memory mentioned above. The memory 703 can also be at least one storage device located away from the aforementioned processor 701. A group of computer program codes or configuration information are stored in the memory 703, and the processor 701 executes the program in the memory 703. The processor can cooperate with the memory and the transceiver to execute any one of the methods and functions of the network device in the above-mentioned application embodiment.

[0312] An embodiment of the present application also provides a chip system, which includes a processor for supporting a terminal device or a network device to implement the functions involved in any of the above embodiments, such as generating or processing the configuration information involved in the above method.

[0313] In one possible design, the chip system may also include a memory, which is used for computer programs and data necessary for the terminal device or network device. The chip system may be composed of a chip, or may include a chip and other discrete devices. The input and output of the chip system correspond to the receiving and sending operations of the terminal device or network device in the method embodiment, respectively.

[0314] According to the method provided in the embodiment of the present application, the present application also provides a computer program product, the computer program product comprising: a computer program, when the computer program is run on a computer, causes the computer to execute Figure 3 A method according to any one of the embodiments shown.

[0315] According to the method provided in the embodiment of the present application, the present application also provides a computer-readable medium, which stores a computer program, and when the computer program is run on a computer, the computer executes Figure 3 A method according to any one of the embodiments shown.

[0316] According to the method provided in the embodiment of the present application, the present application also provides a communication system, which includes one or more terminal devices and one or more network devices as mentioned above.

[0317] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer instructions are loaded and executed on a computer, the process or function described in the embodiment of the present application is generated in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from a website site, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (digital subscriber line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, server or data center. The computer-readable storage medium may be any available medium that a computer can access or a data storage device such as a server or data center that includes one or more available media integrated. The available medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a high-density digital video disc (DVD)), or a semiconductor medium (eg, a solid state disc (SSD)).

[0318] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A communication method, characterized in that: The method comprises: The terminal device receives configuration information sent by the network device, where the configuration information includes M first-level pilot resource numbers and X second-level pilot resources, one first-level pilot resource is associated with one or more second-level pilot resources, and both M and X are integers greater than 0; The terminal device selects N first-level pilot resources from the M first-level pilot resources, and measures Y second-level pilot resources among the X second-level pilot resources that are associated with the N first-level pilot resources, where N is an integer greater than or equal to 1 and less than or equal to M, and Y is an integer greater than or equal to 1 and less than or equal to X.

2. The method according to claim 1, characterized in that The configuration manner of the first-level pilot resource and the second-level pilot resource includes one or more of the following: The first-level pilot resources and the second-level pilot resources are configured in the same pilot resource set; or The first-level pilot resources and the second-level pilot resources are configured in different pilot resource sets; or The first-level pilot resources and the second-level pilot resources are associated with the same reporting configuration.

3. The method according to claim 1 or 2, characterized in that The association relationship between one first-level pilot resource and one or more second-level pilot resources includes one or more of the following: a spatial filtering inclusion and / or inclusion-involved association relationship between one first-level pilot resource and one or more second-level pilot resources; or An activation and / or deactivation association relationship between one first-level pilot resource and one or more second-level pilot resources.

4. The method according to claim 3, characterized in that The spatial filtering inclusion and / or inclusion association relationship between the one first-level pilot resource and one or more second-level pilot resources includes one or more of the following: A spatial domain filtering of the first-level pilot resource is greater than or equal to a spatial domain filtering of the second-level pilot resource; or The reception spatial domain filtering of one first-level pilot resource and one or more second-level pilot resources is the same; or The transmission spatial domain filtering of one first-level pilot resource and one or more second-level pilot resources is the same.

5. The method according to claim 3, characterized in that The activation and / or deactivation association relationship between the one first-level pilot resource and one or more second-level pilot resources includes one or more of the following: One of the first-level pilot resources and one or more of the second-level pilot resources are activated simultaneously; or One of the first-level pilot resources and one or more of the second-level pilot resources are deactivated simultaneously.

6. The method according to any one of claims 1 to 5, characterized in that: The configuration information includes a first pilot resource set and a second pilot resource set, the first pilot resource set includes the M first-level pilot resources, the second pilot resource set includes the X second-level pilot resources, the M first-level pilot resources are arranged in order of resource index size, the X second-level pilot resources are arranged in order of resource index size, the i-th first-level pilot resource among the M first-level pilot resources is associated with the (i-1)*j+1-th second-level pilot resource to the i*j-th second-level pilot resource among the X second-level pilot resources, the i is an integer greater than 0 and less than or equal to M, the j is the number of the second-level pilot resources associated with one first-level pilot resource, and the j is an integer greater than 0 and less than or equal to X.

7. The method according to any one of claims 1 to 5, characterized in that: The configuration information includes a third pilot resource set, the third pilot resource set includes the M first-level pilot resources and the X second-level pilot resources, the M first-level pilot resources and the X second-level pilot resources are arranged in order of resource index size, the i-th first-level pilot resource among the M first-level pilot resources is associated with the (i-1)*j+1-th second-level pilot resource to the i*j-th second-level pilot resource among the X second-level pilot resources, the i is an integer greater than 0 and less than or equal to M, the j is the number of the second-level pilot resources associated with one first-level pilot resource, and the j is an integer greater than 0 and less than or equal to X.

8. The method according to any one of claims 1 to 5, characterized in that: The configuration information includes a fourth pilot resource set, and the fourth pilot resource set includes the one first-level pilot resource and k second-level pilot resources, where k is the number of the second equal-frequency resources associated with one first-level pilot resource, and k is an integer greater than 0.

9. The method according to any one of claims 1 to 8, characterized in that The method further comprises: The terminal device selects one or more pilot resources from the Y second-level pilot resources; or, selects one or more pilot resources from the M first-level pilot resources and the Y second-level pilot resources; or, selects one or more pilot resources from the X second-level pilot resources; or, selects one or more pilot resources from the M first-level pilot resources and the X second-level pilot resources; The terminal device sends an index of the one or more pilot resources to the network device.

10. The method according to claim 9, characterized in that The index of the pilot resources includes one or more of the following: the global resource index of the first-level pilot resources, the local resource index of the first-level pilot resources, the global resource index of the second-level pilot resources, the local resource index of the second-level pilot resources, the level index of the first-level pilot resources, and the level index of the second-level pilot resources.

11. The method according to any one of claims 1 to 10, characterized in that: The terminal device selecting N first-level pilot resources from the M first-level pilot resources includes: The terminal device determines the channel state information of the M first-level pilot resources, and selects the channel state information from the M first-level pilot resources and arranges them in the first N first-level pilot resources in descending order; or The terminal device determines the channel state information of the M first-level pilot resources, and selects N first-level pilot resources whose difference value between the channel state information and the first channel state information is less than a first threshold from the M first-level pilot resources, wherein the first channel state information is the maximum value among the channel state information of the M first-level pilot resources.

12. The method according to claim 11, characterized in that The method further comprises: The terminal device measures Y second-level pilot resources associated with the N first-level pilot resources among the X second-level pilot resources to determine channel state information of the Y second-level pilot resources; The terminal device selects one or more channel state information from the channel state information of the M first-level pilot resources and the channel state information of the Y second-level pilot resources to report to the network device.

13. The method according to claim 11 or 12, characterized in that The channel state information includes one or more of the following: signal-to-noise ratio SINR, reference signal received power RSRP, reference signal received quality RSRQ, rank indicator RI, channel quality indicator CQI, and precoding matrix indicator PMI.

14. A communication method, characterized in that: The method comprises: The network device determines configuration information, where the configuration information includes M first-level pilot resource numbers and X second-level pilot resources, one first-level pilot resource is associated with one or more second-level pilot resources, and both M and X are integers greater than 0; The network device sends the configuration information to the terminal device, where the configuration information is used to indicate that N first-level pilot resources are selected from the M first-level pilot resources, and Y second-level pilot resources among the X second-level pilot resources that are associated with the N first-level pilot resources are measured, where N is an integer greater than or equal to 1 and less than or equal to M, and Y is an integer greater than or equal to 1 and less than or equal to X.

15. The method according to claim 14, characterized in that The configuration manner of the first-level pilot resource and the second-level pilot resource includes one or more of the following: The first-level pilot resources and the second-level pilot resources are configured in the same pilot resource set; or The first-level pilot resources and the second-level pilot resources are configured in different pilot resource sets; or The first-level pilot resources and the second-level pilot resources are associated with the same reporting configuration.

16. The method according to claim 14 or 15, characterized in that The association relationship between one first-level pilot resource and one or more second-level pilot resources includes one or more of the following: a spatial filtering inclusion and / or inclusion-involved association relationship between one first-level pilot resource and one or more second-level pilot resources; or An activation and / or deactivation association relationship between one first-level pilot resource and one or more second-level pilot resources.

17. The method according to claim 16, characterized in that The spatial filtering inclusion and / or inclusion association relationship between the one first-level pilot resource and one or more second-level pilot resources includes one or more of the following: A spatial domain filtering of the first-level pilot resource is greater than or equal to a spatial domain filtering of the second-level pilot resource; or The reception spatial domain filtering of one first-level pilot resource and one or more second-level pilot resources is the same; or The transmission spatial domain filtering of one first-level pilot resource and one or more second-level pilot resources is the same.

18. The method according to claim 16, characterized in that The activation and / or deactivation association relationship between the one first-level pilot resource and one or more second-level pilot resources includes one or more of the following: One of the first-level pilot resources and one or more of the second-level pilot resources are activated simultaneously; or One of the first-level pilot resources and one or more of the second-level pilot resources are deactivated simultaneously.

19. The method according to any one of claims 14 to 18, characterized in that: The configuration information includes a first pilot resource set and a second pilot resource set, the first pilot resource set includes the M first-level pilot resources, the second pilot resource set includes the X second-level pilot resources, the M first-level pilot resources are arranged in order of resource index size, the X second-level pilot resources are arranged in order of resource index size, the i-th first-level pilot resource among the M first-level pilot resources is associated with the (i-1)*j+1-th second-level pilot resource to the i*j-th second-level pilot resource among the X second-level pilot resources, the i is an integer greater than 0 and less than or equal to M, the j is the number of the second-level pilot resources associated with one first-level pilot resource, and the j is an integer greater than 0 and less than or equal to X.

20. The method according to any one of claims 14 to 18, characterized in that The configuration information includes a third pilot resource set, the third pilot resource set includes the M first-level pilot resources and the X second-level pilot resources, the M first-level pilot resources and the X second-level pilot resources are arranged in order of resource index size, the i-th first-level pilot resource among the M first-level pilot resources is associated with the (i-1)*j+1-th second-level pilot resource to the i*j-th second-level pilot resource among the X second-level pilot resources, the i is an integer greater than 0 and less than or equal to M, the j is the number of the second-level pilot resources associated with one first-level pilot resource, and the j is an integer greater than 0 and less than or equal to X.

21. The method according to any one of claims 14 to 18, characterized in that: The configuration information includes a fourth pilot resource set, and the fourth pilot resource set includes the one first-level pilot resource and k second-level pilot resources, where k is the number of the second equal-frequency resources associated with one first-level pilot resource, and k is an integer greater than 0.

22. The method according to any one of claims 14 to 21, characterized in that: The method further comprises: The network device receives an index of one or more pilot resources sent by the terminal device, wherein the one or more pilot resources are selected from the Y second-level pilot resources, or selected from the M first-level pilot resources and the Y second-level pilot resources, or selected from the X second-level pilot resources, or selected from the M first-level pilot resources and the X second-level pilot resources.

23. The method of claim 22, wherein: The index of the pilot resources includes one or more of the following: the global resource index of the first-level pilot resources, the local resource index of the first-level pilot resources, the global resource index of the second-level pilot resources, the local resource index of the second-level pilot resources, the level index of the first-level pilot resources, and the level index of the second-level pilot resources.

24. The method according to any one of claims 14 to 23, characterized in that The method further comprises: The network device receives one or more channel state information sent by the terminal device, where the one or more channel state information is selected from the channel state information of the M first-level pilot resources and the channel state information of the Y second-level pilot resources.

25. The method of claim 24, wherein: The channel state information includes one or more of the following: signal-to-noise ratio SINR, reference signal received power RSRP, reference signal received quality RSRQ, rank indicator RI, channel quality indicator CQI, and precoding matrix indicator PMI.

26. A communication device, characterized in that: The communication device comprises a memory and a processor, wherein the memory is used to store a computer program, and the processor runs the computer program to enable the communication device to perform the method according to any one of claims 1 to 13.

27. A communication device, characterized in that: The device comprises a memory and a processor, wherein the memory is used to store a computer program, and the processor runs the computer program to enable the communication device to perform the method according to any one of claims 14 to 25.

28. A communication system, characterized in that: The system comprises a terminal device and a network device, wherein the terminal device is used to execute the method according to any one of claims 1 to 13, and the network device is used to execute the method according to any one of claims 14 to 25.

29. A computer-readable storage medium, characterized in that: The computer-readable storage medium comprises a computer program, and when the computer program is executed by a processor, the method according to any one of claims 1 to 25 is implemented.

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