Communication method and device

Abstract

Provided are a communication method and device, the method comprising: receiving first configuration information, the first configuration information being used for indicating a first channel state information reference signal (CSI-RS) resource, the first CSI-RS resource comprising at least one second CSI-RS resource, the first configuration information comprising L pieces of first indication information, each piece of first indication information is used for indicating a power offset value and / or one second CSI-RS resource, the first configuration information is also used for indicating N interference resources, the N interference resources comprise an interference resource corresponding to each second CSI-RS resource in the at least one second CSI-RS resource, and L and N are greater than or equal to 1; determining L pieces of CSI respectively corresponding to the L pieces of first indication information according to the first configuration information; and sending the L pieces of CSI, so that corresponding interference resources can be configured for CSI-RS resources corresponding to different antenna port turn-off modes.

Description

Technical Field

[0001] The present application relates to the field of communications, and more specifically, to a communication method and device. Background Art

[0002] With the development of cellular communication technology, the spectrum used is getting wider and wider, the number of configured transmit antennas is increasing, and the overall power consumption of base stations is getting higher and higher. Researchers have proposed ways to save power consumption, such as dynamically shutting down some transmit antennas to save base station power. When the antenna port is dynamically shut down, it is necessary to configure the Channel State Information Reference Signal (CSI-RS) resources for different antenna port shutdown methods. However, how to configure the corresponding interference resources for the CSI-RS resources of different antenna port shutdown methods is a problem that needs to be solved urgently. Summary of the invention

[0003] The present application provides a communication method and device, which can configure corresponding interference resources for CSI-RS resources corresponding to different antenna port shutdown modes.

[0004] In a first aspect, a communication method is provided, which can be executed by a terminal device, or can also be executed by a chip or circuit used for the terminal device, which is not limited in this application. For ease of description, the following description is taken as an example of execution by a terminal device.

[0005] The method includes: a terminal device receives first configuration information, the first configuration information is used to indicate a first channel state information reference signal CSI-RS resource, the first CSI-RS resource includes at least one second CSI-RS resource, the first configuration information includes L first indication information, each of the first indication information is used to indicate a power offset value, and / or, one of the second CSI-RS resources, the first configuration information is also used to indicate N interference resources, the N interference resources include the interference resources corresponding to each second CSI-RS resource in the at least one second CSI-RS resource, L, N are positive integers not less than 1; the terminal device determines, according to the first configuration information, L CSIs corresponding to the L first indication information respectively; the terminal device sends the L CSIs.

[0006] The first configuration information is CSI report configuration information (CSI Report Configuration), the first indication information is CSI report sub-configuration information (CSI Report sub-configuration) information. The power offset value is a power offset (powerControlOffset) value of a physical downlink shared channel (physical downlink share channel, PDSCH) resource element (resource element, RE) relative to an NZP CSI-RS RE.

[0007] It should be understood that the terminal device also receives second configuration information, where the second configuration information is resource configuration information of the first configuration information. Exemplarily, the second configuration information is CSI resource configuration information (CSI Resource Configuration).

[0008] It should be understood that the first CSI-RS resource consists of resources on M ports, and the second CSI-RS resource consists of resources on F ports (hereinafter referred to as port subsets) among the M ports, and M≥F≥1.

[0009] It should be understood that the embodiment of the present application does not limit the ports included in the port subset corresponding to the at least one second CSI-RS resource.

[0010] As an example but not limitation, the port subsets corresponding to the at least one second CSI-RS resource include different numbers of ports.

[0011] As an example but not limitation, the port subsets corresponding to the at least one second CSI-RS resource include the same number of ports, and any two port subsets in the port subsets corresponding to the at least one second CSI-RS resource include at least one different port.

[0012] In one possible implementation, the first configuration information is used to indicate a first reference resource set, which includes multiple CSI-RS resources in addition to the first CSI-RS resource, wherein the resources in each CSI-RS resource do not overlap with the resources in the first CSI-RS resource, that is, the antenna port of each CSI-RS resource and the antenna port of the first CSI-RS resource do not include the same antenna port.

[0013] It should be understood that the N interference resources may also include interference resources corresponding to the first CSI-RS resource.

[0014] It should be understood that the first indication information is only used to indicate a power offset value, and the power offset value is used to determine the CSI of the first CSI-RS resource.

[0015] It should be understood that the first indication information is only used to indicate the second CSI-RS resource, and the CSI of the second CSI-RS resource can be determined based on the power offset value carried in the first configuration information.

[0016] It should be understood that the first indication information is used to indicate the second CSI-RS resource and the power offset value, and the CSI of the second CSI-RS resource can be determined based on the power offset value.

[0017] It should be understood that in an embodiment of the present application, different power offset values ​​can be indicated for the same second CSI-RS resource through multiple first indication information, or the same power offset value can be indicated for different second CSI-RS resources, that is, different combinations of second CSI-RS resources and power offset values ​​can be indicated through different first indication information.

[0018] It should be understood that the embodiment of the present application does not limit the specific manner in which the first indication information indicates the power offset value.

[0019] Exemplarily, the first indication information includes a numerical value of the power offset value.

[0020] Exemplarily, the first indication information includes an index of the power offset value.

[0021] It should be understood that when the first indication information includes an index of a power offset value, the first configuration information or the second configuration information can include a set of numerical values ​​of the power offset value.

[0022] It should be understood that the power offset values ​​indicated in the above L first indication information can be the same or different.

[0023] It should be understood that the number of combinations of any two second CSI-RS resources and power offset values ​​can be the same or different, or in other words, the number of first indication information used to indicate each combination of the second CSI-RS and power offset value can be the same or different.

[0024] Based on the above scheme, the network device can configure one or more interference resources and power offset values ​​corresponding to the second CSI-RS resources for the terminal device through CSI reporting configuration, so that the terminal device can determine the interference resources and frequency offset values ​​corresponding to multiple shutdown methods according to the CSI reporting configuration when the antenna port of the network device is dynamically shut down, thereby improving the accuracy of interference measurement.

[0025] In combination with the first aspect, in some implementations of the first aspect, the interference resource is a CSI interference measurement (CSI interference measurement, CSI-IM) resource, or a non-zero power CSI-RS (Non zero power-CSI-RS, NZP-CSI-RS) resource.

[0026] It should be understood that when the interference resource is a CSI-IM resource, the terminal device measures neighboring cell interference according to the CSI-IM resource. When the interference resource is a NZP-CSI-RS resource, the terminal device measures inter-stream interference according to the NZP-CSI-RS resource.

[0027] Based on the above solution, the network device can configure CSI-IM resources for the terminal device to measure neighboring cell interference, or configure NZP-CSI-RS resources for the terminal device to measure inter-stream interference, thereby improving the flexibility of interference resource configuration.

[0028] In combination with the first aspect, in some implementations of the first aspect, the interference resource is a CSI-IM resource, and N=1.

[0029] It should be understood that N=1 can be understood as any combination of a power offset value and a first CSI-RS resource, and any combination of a power offset value and at least one second CSI-RS resource, all correspond to the same CSI-IM resource.

[0030] The CSI-IM Resource information element (Information Element, IE) indicating the same CSI-IM resource is the same.

[0031] It should be understood that the embodiment of the present application does not limit the CSI-IM resources corresponding to the L second CSI-RS resources.

[0032] As an example but not limitation, the CSI-IM resources corresponding to the L second CSI-RS resources are the CSI-IM resources corresponding to the first CSI-RS resources.

[0033] As an example but not limitation, the CSI-IM resource corresponding to the L second CSI-RS resources is a CSI-IM resource corresponding to any one second CSI-RS resource.

[0034] Based on the above solution, the network device can configure multiple second CSI-RS resources to correspond to the same CSI-IM resource through CSI reporting configuration information, thereby reducing the physical overhead of the CSI-IM resource and reducing the signaling overhead of configuring the CSI-IM resource when the port shutdown mode changes.

[0035] In combination with the first aspect, in certain implementations of the first aspect, the terminal device determines, based on the first configuration information, the L CSIs corresponding to the L first indication information, including at least one of the following: one of the first indication information is used to indicate a power offset value, and the terminal device determines the CSI corresponding to one of the first indication information based on the power offset value, the first CSI-RS resource, and the first CSI-IM resource, and the first CSI-IM resource is an interference resource corresponding to the at least one second CSI-RS resource; one of the first indication information is used to indicate one of the second CSI-RS resources, and the terminal device determines the CSI corresponding to one of the first indication information based on one of the second CSI-RS resources, the first power offset value, and the first CSI-IM resource, and the first power offset value is included in the first configuration information; one of the first indication information is used to indicate one of the second CSI-RS resources and a power offset value, and the terminal device determines the CSI corresponding to one of the first indication information based on one of the second CSI-RS resources, the power offset value, and the first CSI-IM resource.

[0036] It should be understood that the first power offset value is the default power offset value in the first configuration information, that is, when the first indication information is only used to indicate the second CSI-RS resource, the terminal device can determine the CSI corresponding to the first indication information based on the default power offset value in the first configuration information.

[0037] Based on the above solution, the terminal device can determine the parameters used to calculate the CSI of the first indication information when the first indication information indicates different contents, thereby improving the accuracy of interference measurement.

[0038] In combination with the first aspect, in some implementations of the first aspect, the interference resource is an NZP-CSI-RS resource, N=L, and the NZP-CSI-RS resources corresponding to any two of the L first indication information are different.

[0039] Specifically, any combination of a power offset value and a first CSI-RS resource, and any combination of a power offset value and at least one second CSI-RS resource correspond to different NZP-CSI-RS resources.

[0040] Exemplarily, when the first indication information is used to indicate the second CSI-RS resource and the power offset value, the NZP-CSI-RS resource corresponding to the first indication information can be understood as the power offset value corresponding to the combination of the second CSI-RS resource indicated by the first indication information and the power offset value.

[0041] The NZP-CSI-RS Resource IE indicating each different NZP-CSI-RS resource is different, and the physical resources (eg, time-frequency resources) mapped by different NZP-CSI-RS resource IEs are also different.

[0042] Based on the above solution, the network device can configure corresponding NZP-CSI-RS resources for multiple second CSI-RS resources respectively through CSI reporting configuration information, thereby reducing the signaling overhead of configuring NZP-CSI-RS resources when the port shutdown mode changes.

[0043] In combination with the first aspect, in certain implementations of the first aspect, the terminal device determines, according to the first configuration information, the L CSIs corresponding to the L first indication information, including at least one of the following: one of the first indication information is used to indicate a power offset value, and the terminal device determines the CSI corresponding to one of the first indication information according to the power offset value, the first CSI-RS resource, and the NZP-CSI-RS resource corresponding to the first CSI-RS resource and the power offset value, wherein the first CSI-RS resource and the NZP-CSI-RS resource corresponding to the power offset value are included in the first configuration information; one of the first indication information is used to indicate the second CS The terminal device determines the CSI corresponding to one of the first indication information according to the first indication information, the second power offset value, and one of the second CSI-RS resources indicated by one of the first indication information and the NZP-CSI-RS resource corresponding to the second power offset value, wherein the second power offset value is included in the first configuration information; one of the first indication information is used to indicate one of the second CSI-RS resources and the power offset value, and the terminal device determines the CSI corresponding to one of the first indication information according to the one of the second CSI-RS resources, the power offset value, and the NZP-CSI-RS resource corresponding to the first indication information.

[0044] It should be understood that the second power offset value is the default power offset value in the first configuration information, that is, when the first indication information is only used to indicate the second CSI-RS resource, the terminal device can determine the CSI corresponding to the first indication information based on the default power offset value in the first configuration information.

[0045] Based on the above solution, the terminal device can determine the parameters used to calculate the CSI of the first indication information when the first indication information indicates different contents, thereby improving the accuracy of interference measurement.

[0046] In combination with the first aspect, in certain implementations of the first aspect, the interference resource corresponding to each of the second CSI-RS resources is included in the first configuration information, or the first indication information.

[0047] Specifically, the first configuration information of the CSI-RS resource includes L first indication information, and each first indication information of the L first indication information includes each interference resource corresponding to the second CSI-RS resource, or, each power offset value and interference resource (or, the interference resource corresponding to the combination of the first CSI-RS resource and the power offset value), or, the interference resource corresponding to the combination of the second CSI-RS resource and the power offset value.

[0048] It should be understood that the interference resource included in each of the L first indication information can be understood as an information element including the interference resource in each of the first indication information.

[0049] It should be understood that the first configuration information includes N interference resources corresponding to the L second CSI-RS resources, wherein the above-mentioned first configuration information includes N interference resources corresponding to each second CSI-RS resource, which can be understood as each first indication information includes the information element of the N interference resources corresponding to the second CSI-RS resource, and the interference resources included in the first configuration information are the interference resource information elements corresponding to the L second CSI-RS resources.

[0050] It should be understood that when the interference resource is an NZP-CSI-RS resource, the first configuration information includes an NZP-CSI-RS resource element corresponding to a combination of a CSI-RS resource and a power offset value indicated by each of the L first indication information, wherein the CSI-RS resource can be understood as a first CSI-RS resource and a second CSI-RS resource.

[0051] In a possible implementation, the NZP-CSI-RS resource corresponding to the combination of the CSI-RS resource and the power offset value indicated by each first indication information can be determined by the ordering of the first indication information in the L NZP-CSI-RS resource information elements.

[0052] Based on the above scheme, the network device carries L first indication information and the interference resources corresponding to the at least one second CSI-RS resource in the first configuration information, or carries the interference resources corresponding to the at least one second CSI-RS resource in each first indication information, thereby improving the flexibility of indicating the interference resources.

[0053] In a second aspect, a communication method is provided, which can be executed by a network device, or can also be executed by a chip or circuit used for a network device, which is not limited in this application. For ease of description, the following description is given by taking the execution by a network device as an example.

[0054] The method includes: a network device generates first configuration information, the first configuration information is used to indicate a first channel state information reference signal CSI-RS resource, the first CSI-RS resource includes at least one second CSI-RS resource, the first configuration information includes L first indication information, each of the first indication information is used to indicate a power offset value, and / or, one of the second CSI-RS resources, the first configuration information is also used to indicate N interference resources, the N interference resources include the interference resources corresponding to each second CSI-RS resource in the at least one second CSI-RS resource, L, N are positive integers not less than 1; the network device sends the first configuration information; the network device receives the L CSIs, the L CSIs correspond to the L first indication information respectively.

[0055] The first configuration information is CSI report configuration information (CSI Report Configuration), the first indication information is CSI report sub-configuration information (CSI Report sub-configuration) information. The power offset value is a power offset (powerControlOffset) value of a physical downlink shared channel (physical downlink share channel, PDSCH) resource element (resource element, RE) relative to an NZP CSI-RS RE.

[0056] It should be understood that the terminal device also receives second configuration information, where the second configuration information is resource configuration information of the first configuration information. Exemplarily, the second configuration information is CSI resource configuration information (CSI Resource Configuration).

[0057] It should be understood that the first CSI-RS resource consists of resources on M ports, and the second CSI-RS resource consists of resources on F ports (hereinafter referred to as port subsets) among the M ports, and M≥F≥1.

[0058] It should be understood that the embodiment of the present application does not limit the ports included in the port subset corresponding to the at least one second CSI-RS resource.

[0059] As an example but not limitation, the port subsets corresponding to the at least one second CSI-RS resource include different numbers of ports.

[0060] As an example but not limitation, the port subsets corresponding to the at least one second CSI-RS resource include the same number of ports, and any two port subsets in the port subsets corresponding to the at least one second CSI-RS resource include at least one different port.

[0061] In one possible implementation, the first configuration information is used to indicate a first reference resource set, which includes multiple CSI-RS resources in addition to the first CSI-RS resource, wherein the resources in each CSI-RS resource do not overlap with the resources in the first CSI-RS resource, that is, the antenna port of each CSI-RS resource and the antenna port of the first CSI-RS resource do not include the same antenna port.

[0062] It should be understood that the N interference resources may also include interference resources corresponding to the first CSI-RS resource.

[0063] It should be understood that the first indication information is only used to indicate a power offset value, and the power offset value is used to determine the CSI of the first CSI-RS resource.

[0064] It should be understood that the first indication information is only used to indicate the second CSI-RS resource, and the CSI of the second CSI-RS resource can be determined based on the power offset value carried in the first configuration information.

[0065] It should be understood that the first indication information is used to indicate the second CSI-RS resource and the power offset value, and the CSI of the second CSI-RS resource can be determined based on the power offset value.

[0066] It should be understood that the embodiment of the present application does not limit the specific manner in which the first indication information indicates the power offset value.

[0067] Exemplarily, the first indication information includes a numerical value of the power offset value.

[0068] Exemplarily, the first indication information includes an index of the power offset value.

[0069] It should be understood that the first indication information includes an index of a power offset value, and the first configuration information or the second configuration information can include a set of numerical values ​​of the power offset value.

[0070] It should be understood that the power offset values ​​indicated in the above L first indication information can be the same or different.

[0071] It should be understood that the number of combinations of any two second CSI-RS resources and power offset values ​​can be the same or different, or in other words, the number of first indication information used to indicate each combination of the second CSI-RS and power offset value can be the same or different.

[0072] Based on the above scheme, the network device can configure one or more interference resources and power offset values ​​corresponding to the second CSI-RS resources for the terminal device through CSI reporting configuration, so that the terminal device can determine the interference resources and frequency offset values ​​corresponding to multiple shutdown methods according to the CSI reporting configuration when the antenna port of the network device is dynamically shut down, thereby improving the accuracy of interference measurement.

[0073] In combination with the second aspect, in some implementations of the second aspect, the interference resource is a CSI-IM resource, or a NZP-CSI-RS resource.

[0074] It should be understood that the interference resource is a CSI-IM resource, and the terminal device measures the neighboring cell interference according to the CSI-IM resource. The interference resource is a NZP-CSI-RS resource, and the terminal device measures the inter-stream interference according to the NZP-CSI-RS resource.

[0075] Based on the above solution, the network device can configure CSI-IM resources for the terminal device to measure neighboring cell interference, or configure NZP-CSI-RS resources for the terminal device to measure inter-stream interference, thereby improving the flexibility of interference resource configuration.

[0076] In combination with the first aspect, in some implementations of the first aspect, the interference resource is a CSI-IM resource, and N=1.

[0077] It should be understood that N=1 can be understood as any combination of a power offset value and a first CSI-RS resource, and any combination of a power offset value and at least one second CSI-RS resource, all correspond to the same CSI-IM resource.

[0078] The CSI-IM Resource information element (Information Element, IE) indicating the same CSI-IM resource is the same.

[0079] It should be understood that the embodiment of the present application does not limit the CSI-IM resources corresponding to the L second CSI-RS resources.

[0080] As an example but not limitation, the CSI-IM resources corresponding to the L second CSI-RS resources are the CSI-IM resources corresponding to the first CSI-RS resources.

[0081] As an example but not limitation, the CSI-IM resource corresponding to the L second CSI-RS resources is a CSI-IM resource corresponding to any one second CSI-RS resource.

[0082] Based on the above solution, the network device can configure multiple second CSI-RS resources to correspond to the same CSI-IM resource through CSI reporting configuration information, thereby reducing the physical overhead of the CSI-IM resource and reducing the signaling overhead of configuring the CSI-IM resource when the port shutdown mode changes.

[0083] In combination with the second aspect, in some implementations of the second aspect, the interference resource is an NZP-CSI-RS resource, N=L, and the NZP-CSI-RS resources corresponding to any two of the L first indication information are different.

[0084] Specifically, any combination of a power offset value and a first CSI-RS resource, and any combination of a power offset value and at least one second CSI-RS resource correspond to different NZP-CSI-RS resources.

[0085] Exemplarily, when the first indication information is used to indicate the second CSI-RS resource and the power offset value, the NZP-CSI-RS resource corresponding to the first indication information can be understood as the power offset value corresponding to the combination of the second CSI-RS resource indicated by the first indication information and the power offset value.

[0086] The NZP-CSI-RS Resource IE indicating each different NZP-CSI-RS resource is different, and the physical resources (eg, time-frequency resources) mapped by different NZP-CSI-RS resource IEs are also different.

[0087] Based on the above solution, the network device can configure corresponding NZP-CSI-RS resources for multiple second CSI-RS resources respectively through CSI reporting configuration information, thereby reducing the signaling overhead of configuring NZP-CSI-RS resources when the port shutdown mode changes.

[0088] In combination with the second aspect, in certain implementations of the second aspect, the interference resource corresponding to each of the second CSI-RS resources is included in the first configuration information, or the first indication information.

[0089] Specifically, the first configuration information of the CSI-RS resource includes L first indication information, and each first indication information of the L first indication information includes each interference resource corresponding to the second CSI-RS resource, or, each power offset value and interference resource (or, the interference resource corresponding to the combination of the first CSI-RS resource and the power offset value), or, the interference resource corresponding to the combination of the second CSI-RS resource and the power offset value.

[0090] It should be understood that the interference resource included in each of the L first indication information can be understood as an information element including the interference resource in each of the first indication information.

[0091] It should be understood that when the first configuration information includes N interference resources corresponding to the L second CSI-RS resources, wherein the above-mentioned first configuration information includes N interference resources corresponding to each second CSI-RS resource, it can be understood that each first indication information includes an information element of the N interference resources corresponding to the second CSI-RS resource, and the interference resources included in the first configuration information are interference resource information elements corresponding to the L second CSI-RS resources.

[0092] It should be understood that when the interference resource is an NZP-CSI-RS resource, the first configuration information includes an NZP-CSI-RS resource element corresponding to a combination of a CSI-RS resource and a power offset value indicated by each of the L first indication information, wherein the CSI-RS resource can be understood as a first CSI-RS resource and a second CSI-RS resource.

[0093] In a possible implementation, the NZP-CSI-RS resource corresponding to the combination of the CSI-RS resource and the power offset value indicated by each first indication information can be determined by the ordering of the first indication information in the L NZP-CSI-RS resource information elements.

[0094] Based on the above scheme, the network device carries L first indication information and the interference resources corresponding to the at least one second CSI-RS resource in the first configuration information, or carries the interference resources corresponding to the at least one second CSI-RS resource in each first indication information, thereby improving the flexibility of indicating the interference resources.

[0095] According to a third aspect, a communication device is provided, which includes a transceiver unit and a processing unit. The transceiver unit is used for first configuration information, where the first configuration information is used to indicate a first channel state information reference signal CSI-RS resource, where the first CSI-RS resource includes at least one second CSI-RS resource, and the first configuration information includes L first indication information, where each of the first indication information is used to indicate a power offset value, and / or, one of the second CSI-RS resources, and the first configuration information is also used to indicate N interference resources, where the N interference resources include the interference resources corresponding to each second CSI-RS resource in the at least one second CSI-RS resource, where L and N are positive integers not less than 1; the processing unit is used to determine, according to the first configuration information, L CSIs corresponding to the L first indication information respectively; and the transceiver unit is also used to send the L CSIs.

[0096] It should be understood that the third aspect is an implementation method on the device side corresponding to the first aspect, and the supplement, explanation and beneficial effects of the first aspect are also applicable to the third aspect and will not be repeated here.

[0097] In a fourth aspect, a communication device is provided, which includes a transceiver unit and a processing unit, wherein the processing unit is used to generate first configuration information, wherein the first configuration information is used to indicate a first channel state information reference signal CSI-RS resource, wherein the first CSI-RS resource includes at least one second CSI-RS resource, and the first configuration information includes L first indication information, each of which is used to indicate a power offset value, and / or, one of the second CSI-RS resources, and the first configuration information is also used to indicate N interference resources, wherein the N interference resources include the interference resources corresponding to each second CSI-RS resource in the at least one second CSI-RS resource, and L and N are positive integers not less than 1; the transceiver unit is used to send the first configuration information; and the transceiver unit is also used to receive the L CSIs, wherein the L CSIs correspond to the L first indication information respectively.

[0098] It should be understood that the fourth aspect is an implementation method on the device side corresponding to the second aspect, and the supplement, explanation and beneficial effects of the second aspect are also applicable to the fourth aspect and will not be repeated here.

[0099] In a fifth aspect, the present application provides a communication device, the communication device comprising a processor, configured to implement the method described in the first aspect or the second aspect, or any implementation of the first aspect or the second aspect. The processor is coupled to a memory, the memory is configured to store instructions and data, and when the processor executes the instructions stored in the memory, the method described in the first aspect or the second aspect, or any implementation of the first aspect or the second aspect, can be implemented.

[0100] Optionally, the communication device may further include a memory. Optionally, the communication device may further include a communication interface, which is used for the device to communicate with other devices. Exemplarily, the communication interface may be a transceiver, a hardware circuit, a bus, a module, a pin or other types of communication interfaces.

[0101] In one example, the communication device may be a network device, such as an access network device, or may be a device, module or chip disposed in the network device, or may be a device that can be used in conjunction with the network device.

[0102] In another example, the communication device may be a terminal device, or may be a device, a module, a chip, etc. provided in the terminal device, or a device that can be used in conjunction with the terminal device.

[0103] In a sixth aspect, the present application provides a communication system, including a network device and a terminal device.

[0104] In the seventh aspect, the present application also provides a computer program, which, when running on a computer, enables the computer to execute the method provided in the above-mentioned first aspect or any implementation of the first aspect, or execute the method provided in the above-mentioned second aspect or any implementation of the second aspect.

[0105] In an eighth aspect, the present application also provides a computer program product, comprising instructions, which, when executed on a computer, enable the computer to execute the method provided in the above-mentioned first aspect or any implementation of the first aspect, or execute the method provided in the above-mentioned second aspect or any implementation of the second aspect.

[0106] In the ninth aspect, the present application also provides a computer-readable storage medium, which stores a computer program or instruction. When the computer program or instruction is run on a computer, the computer executes the method provided in the above-mentioned first aspect or any implementation of the first aspect, or executes the method provided in the above-mentioned second aspect or any implementation of the second aspect.

[0107] In the tenth aspect, the present application also provides a chip, which is used to read a computer program stored in a memory, execute the method provided in the above-mentioned first aspect or any implementation of the first aspect, or execute the method provided in the above-mentioned second aspect or any implementation of the second aspect; or, the chip includes a chip for executing the method provided in the above-mentioned first aspect or any implementation of the first aspect, or executing the method provided in the above-mentioned second aspect or any implementation of the second aspect.

[0108] In the eleventh aspect, the present application further provides a chip system, the chip system comprising a processor, for supporting the device to implement the method provided in the first aspect or any implementation of the first aspect, or to execute the method provided in the second aspect or any implementation of the second aspect. In one possible design, the chip system also includes a memory, the memory being used to store the necessary programs and data for the device. The chip system may be composed of a chip, or may include a chip and other discrete devices.

[0109] The technical effects of the solutions provided in the third to eleventh aspects above can be referred to the corresponding description of the first aspect and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0110] Figure 1 is a schematic diagram of the architecture of a mobile communication system to which the embodiments of the present application are applicable;

[0111] Figure 2 It is a schematic diagram of CSI-RS resource configuration method;

[0112] Figure 3 It is a schematic diagram of a scenario in which NZP-CSI-RS resources are used for interference measurement;

[0113] Figure 4 is a flow chart of a communication method 200 provided in an embodiment of the present application;

[0114] Figure 5 This is a schematic diagram of an interference resource configuration method provided in an embodiment of the present application;

[0115] Figure 6 This is a schematic diagram of another interference resource configuration method provided in an embodiment of the present application;

[0116] Figure 7 is a flow chart of a communication method 300 provided in an embodiment of the present application;

[0117] Figure 8 is a flow chart of a communication method 400 provided in an embodiment of the present application

[0118] Fig. 9 A schematic block diagram of a communication device 1000 provided in the present application;

[0119] Fig.10 A schematic block diagram of a communication device 1100 provided in the present application. DETAILED DESCRIPTION

[0120] The technical solution in this application will be described below in conjunction with the accompanying drawings.

[0121] Figure 1 FIG. 1 is a schematic diagram of the architecture of a communication system 1000 used in an embodiment of the present application. Figure 1 As shown, the communication system includes a wireless access network 100 and a core network 200. Optionally, the communication system 1000 may also include the Internet 300. The wireless access network 100 may include at least one wireless access network device (such as Figure 1 110a and 110b), and may further include at least one terminal (such as Figure 1120a-120j in the figure). The terminal is connected to the wireless access network device by wireless means, and the wireless access network device is connected to the core network by wireless or wired means. The core network device and the wireless access network device can be independent and different physical devices, or the functions of the core network device and the logical functions of the wireless access network device can be integrated on the same physical device, or part of the functions of the core network device and part of the functions of the wireless access network device can be integrated on one physical device. Terminals and wireless access network devices can be connected to each other by wired or wireless means. Figure 1 This is just a schematic diagram. The communication system may also include other network devices, such as wireless relay devices and wireless backhaul devices. Figure 1 Not drawn in.

[0122] The wireless access network equipment may be a base station, an evolved NodeB (eNodeB), a transmission reception point (TRP), a next generation NodeB (gNB) in a fifth generation (5G) mobile communication system, a next generation base station in a sixth generation (6G) mobile communication system, a base station in a future mobile communication system, or an access node in a WiFi system, etc.; it may also be a module or unit that completes part of the functions of a base station, for example, it may be a central unit (CU) or a distributed unit (DU). The CU here completes the functions of the radio resource control protocol and the packet data convergence protocol (PDCP) of the base station, and may also complete the functions of the service data adaptation protocol (SDAP); the DU completes the functions of the radio link control layer and the medium access control (MAC) layer of the base station, and may also complete the functions of part of the physical layer or all of the physical layer. For a detailed description of each of the above protocol layers, please refer to the relevant technical specifications of the 3rd generation partnership project (3GPP). The wireless access network device can be a macro base station (such as Figure 1 110a), or a micro base station or an indoor station (such as Figure 1110b), may also be a relay node or a donor node, etc. The embodiments of the present application do not limit the specific technology and specific device form adopted by the wireless access network device. For ease of description, the following description takes a base station as an example of a wireless access network device.

[0123] The terminal may also be referred to as a terminal device, user equipment (UE), mobile station, mobile terminal, etc. The terminal can be widely used in various scenarios, for example, device-to-device (D2D), vehicle-to-everything (V2X) communication, machine-type communication (MTC), Internet of Things (IOT), virtual reality, augmented reality, industrial control, automatic driving, telemedicine, smart grid, smart furniture, smart office, smart wear, smart transportation, smart city, etc. The terminal may be a mobile phone, a tablet computer, a computer with wireless transceiver function, a wearable device, a vehicle, a drone, a helicopter, an airplane, a ship, a robot, a mechanical arm, a smart home device, etc. The embodiments of the present application do not limit the specific technology and specific device form adopted by the terminal.

[0124] Base stations and terminals can be fixed or movable. Base stations and terminals can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; they can also be deployed on the water surface; they can also be deployed on airplanes, balloons, and artificial satellites. The embodiments of this application do not limit the application scenarios of base stations and terminals.

[0125] The roles of the base station and the terminal can be relative, for example, Figure 1 The helicopter or drone 120i in the figure can be configured as a mobile base station. For the terminal 120j that accesses the wireless access network 100 through 120i, the terminal 120i is a base station; but for the base station 110a, 120i is a terminal, that is, 110a and 120i communicate through the wireless air interface protocol. Of course, 110a and 120i can also communicate through the interface protocol between base stations. In this case, relative to 110a, 120i is also a base station. Therefore, base stations and terminals can be collectively referred to as communication devices. Figure 1 110a and 110b in the figure may be referred to as communication devices having base station functions. Figure 1 120a-120j in the figure can be called communication devices with terminal functions.

[0126] Base stations and terminals, base stations and base stations, and terminals and terminals can communicate through authorized spectrum, unauthorized spectrum, or both; they can communicate through spectrum below 6 gigahertz (GHz), spectrum above 6 GHz, or spectrum below 6 GHz and spectrum above 6 GHz. The embodiments of the present application do not limit the spectrum resources used for wireless communication.

[0127] In the embodiments of the present application, the functions of the base station may also be performed by a module (such as a chip) in the base station, or by a control subsystem including the base station function. The control subsystem including the base station function here may be a control center in the above-mentioned application scenarios such as smart grid, industrial control, smart transportation, and smart city. The functions of the terminal may also be performed by a module (such as a chip or a modem) in the terminal, or by a device including the terminal function.

[0128] The technical solution provided in the embodiment of the present application can be applied to wireless communication between communication devices. Wireless communication between communication devices may include: wireless communication between network devices and terminals, wireless communication between network devices and network devices, and wireless communication between terminal devices and terminal devices. In the embodiment of the present application, the term "wireless communication" can also be referred to as "communication", and the term "communication" can also be described as "data transmission", "information transmission" or "transmission".

[0129] It can be understood that in the embodiments of the present application, the physical downlink share channel (PDSCH), the physical downlink control channel (PDCCH) and the physical uplink share channel (PUSCH) are merely examples of downlink data channels, downlink control channels and uplink data channels, respectively. In different systems and different scenarios, data channels and control channels may have different names, and the embodiments of the present application do not limit this.

[0130] During the communication process, the base station and the terminal will obtain the channel state information (CSI) through the measurement signal, and then send and receive data based on the obtained channel state information. The idea of ​​measuring channels and interference in NR is mainly to measure channels or interference by sending reference signals (RS) of known sequences. In NR, the downlink channel is usually measured by the channel state information-reference signal (CSI-reference signal, CSI-RS), and the uplink channel is measured by the channel sounding reference signal (SRS). Of course, for time division duplex (TDD) systems, the reciprocity of uplink and downlink channels can also be used to obtain channel states. This application is mainly for downlink channel / interference measurement.

[0131] The downlink channel is generally measured by CSI-RS. The base station sends CSI-RS, and after the UE receives CSI-RS, it measures the channel by CSI-RS. There are two ways to measure interference: one is that the UE receives the CSI-RS sent by the base station for measurement. The CSI-RS used for interference measurement can be the same as or different from the CSI-RS used for channel measurement; the other is that the UE receives the zero-power CSI-RS (ZP-CSI-RS) indication. The zero-power CSI-RS indicates that the base station does not send any content at the time-frequency position indicated by this reference signal, so that the content received by the UE at this time-frequency position is interference and noise. Based on the received reference signal, the UE calculates the indicators to be measured, such as rank indicator, pre-coding matrix indicator (PMI), channel quality indicator (CQI), and then reports these contents. The reported set of indicators is called a CSI report. The base station receives the CSI report, obtains the channel state information when it sends the downlink signal, and sends the downlink signal to the terminal with reference to the CSI report.

[0132] To facilitate understanding of the solutions of the embodiments of the present application, relevant concepts are explained.

[0133] 1. Antenna off (port)

[0134] Antenna ports may also be referred to as ports for short. Unless otherwise specified, antenna ports in the embodiments of the present application refer to logical antenna ports, not physical antenna ports. An antenna port may be associated with one or more transmission channels. The signal on each antenna port is transmitted through one or more transmission channels associated with it. When an antenna port is associated with multiple transmission channels, the signal on the antenna port is weighted by a weighting coefficient and then transmitted through multiple transmission channels associated with it. It can also be understood that multiple physical antennas are weighted by weighting coefficients to form a logical antenna. The weighting coefficients here may be complex or real, and the weighting coefficients on different physical antennas may be the same or different. Each antenna port has corresponding time-frequency resources and reference signals. The time-frequency resources corresponding to different antenna ports may be the same or different. The reference signal transmitted by the base station through antenna port A can be used by the terminal to estimate the characteristics of the wireless channel from antenna port A to the terminal, and the characteristics of the wireless channel can be used by the terminal to estimate the physical channel transmitted through antenna port A, or to determine the modulation order, code rate and other information during data transmission. A reference signal may correspond to one or more antenna ports, and it can also be understood that a reference signal can be transmitted through one or more antenna ports.

[0135] 2. Channel state information (CSI)

[0136] In the process of a signal passing through a wireless channel from a transmitter to a receiver, it may experience scattering, reflection, and energy attenuation with distance, thus causing fading. CSI is used to characterize the characteristics of a wireless channel and may include at least one of CQI, PMI, CRI, synchronization signal and physical broadcast channel block (SSB) resource indicator (SSBRI), layer indicator (LI), RI, L1-reference signal received power (RSRP) and L1-signal to interference plus noise ratio (SINR). CSI can be sent by a terminal device to a network device through a physical uplink control channel (PUCCH) or a physical uplink shared channel (PUSCH).

[0137] 3. Measurement resources

[0138] The measurement resource corresponding to the channel can be an uplink measurement resource or a downlink measurement resource. Downlink measurement resources include but are not limited to: channel state information reference signal (CSI-RS), channel state information interference measurement (CSI-IM), cell specific reference signal (CS-RS), UE specific reference signal (US-RS), DMRS, and SS / PBCH block, etc.

[0139] The measurement resource can be configured through radio resource control signaling (RRC) signaling. In terms of configuration structure, a measurement resource can be a data structure, including relevant parameters of the corresponding uplink / downlink signal, such as the type of uplink / downlink signal, the resource element carrying the uplink / downlink signal, the transmission time and period of the uplink / downlink signal, the number of ports used to send the uplink / downlink signal, etc. Each measurement resource of an uplink / downlink signal has an index to identify the measurement resource of the uplink / downlink signal. It can be understood that the index of the measurement resource can also be referred to as the identification of the measurement resource, and the embodiments of the present application do not impose any restrictions on this.

[0140] The measurement resources may include channel resources and interference resources.

[0141] 3.1 Channel Resources

[0142] Channel resources refer to the resources configured by the network equipment for channel measurement. Channel resources can be used to measure channel information such as reference signal received power (RSRP), channel quality indicator (CQI), signal to interference plus noise ratio (SINR), etc. In uplink channel measurement, channel resources can be SRS resources. In downlink channel measurement, channel resources can be CSI-RS resources or SSB. When measuring CQI and SINR, interference resources also need to be configured.

[0143] 3.2 Interference Resources

[0144] Interference resources refer to resources configured by network equipment for channel measurement. In uplink channel measurement, interference resources can be SRS resources. In downlink channel measurement, interference resources can be CSI-RS resources, SSB or CSI-IM resources. When measuring channel information such as CQI and SINR, these interference resources are used as interference sources to calculate CQI and SINR together with channel resources. For example, when measuring the SINR of a channel resource over an interference resource, the energy of the channel resource can be used as the numerator and the energy of the interference resource as the denominator to calculate the SINR.

[0145] 4. Channel State Information Report Configuration (CSI-ReportConfig)

[0146] It is mainly used to configure parameters related to channel status reporting, such as the type of reporting, the reported measurement indicators, etc. Among them, the reporting configuration identifier (reportConfigId) is the identification (identity, Id) number of the CSI-ReportConfig, which is used to mark the CSI-ReportConfig; channel measurement resources (resourcesForChannelMeasurement) are used to configure the channel state information-reference signal (CSI-Reference Signal, CSI-RS) resources for channel measurement, and are associated with the resource configuration through CSI-ResourceConfigId; interference measurement resources (CSI-IM-RessourcesForInterference) configure the CSI-RS resources used for interference measurement, and are associated with the resource configuration through CSI-ResourceConfigId.

[0147] 5. Channel State Information Resource Configuration (CSI-ResourceConfig)

[0148] Used to configure resource-related information for CSI measurement. It includes multiple CSI-RS resource sets (CSI-RS-ResourceSet), and each CSI-RS-ResourceSet includes multiple CSI-RS resources (CSI-RS-Resource). The main configuration parameters of CSI-RS-Resource include: resource mapping configuration (resourceMapping), power offset of PDSCH RE relative to NZP CSI-RS RE (powerControlOffset), power offset of NZP CSI-RS RE relative to SS RE (powerControlOffsetSS), scrambling code ID (scramblingID), period and offset configuration (periodicityAndOffset), QCL configuration (qcl-InfoPeriodicCSI-RS).

[0149] It should be understood that CSI-ResourceConfig and CSI-ReportConfig are interrelated, and CSI-ReportConfig configuration corresponds to the measurement results under CSI-ResourceConfig resources. In addition to TRS measurement, each set of CSI-RS-ResourceSet resources that need to report channel status must be configured with a corresponding set of CSI-ReportConfig resources.

[0150] 6. CSI-IM

[0151] The NR standard specifies a resource specifically used to estimate the interference level, called CSI-IM. The interference signal measured on the CSI-IM is mainly assumed to be the PDSCH of the neighboring cell. Each CSI-RS resource needs to be configured with a corresponding CSI-IMresource to estimate the interference level of the neighboring cell. Generally, the CSI-IM resource is configured through the high-level parameter CSI-IM-Resource.

[0152] It should be understood that when CSI-IM is used for interference measurement, each CSI-RS resource used for channel measurement is resource associated with the CSI-IM resource by sorting the CSI-RS resource and the CSI-IM resource in the corresponding resource set. The number of CSI-RS resources used for channel measurement is equal to the number of CSI-IM resources.

[0153] 7. NZP-CSI-RS for interference measurement

[0154] In the Multi-User multiple-input multiple-output (MU-MIMO) scenario, non-zero power CSI-RS (NZP-CSI-RS) is used to measure the interference from the scheduled paired UE. In the above scenario, each CSI-RS resource used for channel measurement needs to be configured with a corresponding NZP-CSI-RS for estimating the inter-stream interference level.

[0155] It should be understood that when NZP-CSI-RS is used for interference measurement, each CSI-RS resource for channel measurement is resource-associated with the NZP-CSI-RS resource for interference measurement by sorting the CSI-RS resource for channel measurement and the NZP-CSI-RS resource for interference measurement in the corresponding resource set, wherein the number of CSI-RS resources for channel measurement is equal to the number of NZP-CSI-RS resources for interference measurement.

[0156] With the evolution of cellular communication technology, the spectrum used is getting wider and wider, the number of transmitting antennas of network equipment (such as base stations) is increasing, and the power consumption of base stations is getting higher and higher. To this end, researchers have proposed a method of turning off the transmitting antenna (which can be understood as TX shutdown, or physical antenna port shutdown) to save base station power. When some antennas of the base station are turned off, the number of antennas used by the base station to send reference signals also decreases.

[0157] Antenna shutdown can be divided into two types: the first type, antenna shutdown affects the (logical) antenna port. When the antenna is shut down, the number of antenna ports of CSI-RS will change, that is, the number of logical ports of CSI-RS resources is reduced, while the physical port bound to each logical port of CSI-RS resources remains unchanged; the second type, antenna shutdown does not affect the (logical) antenna port, that is, when the antenna is shut down, the antenna port of CSI-RS does not change.

[0158] However, the current channel measurement capabilities of terminal devices are limited. When the communication environment changes, for example, when the antenna port is dynamically shut down, the interference resources cannot be adapted in time, which will lead to inaccurate interference measurement. Therefore, how to configure interference resources for different antenna port shutdown modes through additional methods is an urgent problem to be solved.

[0159] As an example, in a scenario where the antenna is shut down in the first type and CSI-IM is used for interference measurement, a current CSI configuration method is to add multiple sub-configuration information to CSI-ReportConfig, and carry a port subset indication in each sub-configuration information. Each port subset indicates F ports out of the M ports of the CSI-RS resources included in the resource set, and the CSI-RS resources composed of the resources included in the F ports are the CSI-RS resources corresponding to the sub-configuration information. Among them, the CSI-RS resources corresponding to the sub-configuration can be understood as the terminal device measuring the CSI based on the parameters included in the sub-configuration, and the CSI measurement resources are the CSI-RS resources.

[0160] like Figure 2 As shown, the base station includes CSI-RS resource 1 and CSI-RS resource 2, and the two resources do not intersect. In other words, CSI-RS resource 1 and CSI-RS resource 2 do not include overlapping ports. When the base station dynamically shuts down the antenna, the base station can independently shut down 8 of the 16 antenna ports of CSI-RS resource 1, or the base station can independently shut down 8 of the 16 antenna ports of CSI-RS resource 2.

[0161] However, in the above CSI-RS configuration method of adding multiple sub-configurations in CSI-ReportConfig, how to configure the CSI-IM resources corresponding to the CSI-RS resource configuration of each sub-configuration is a problem that needs to be solved urgently.

[0162] In another example, in the scenario where the antenna is shut down in the first type and NZP-CSI-RS is used for interference measurement, it is necessary to configure CSI-RS resources with different port numbers through independent CSI-RS report configuration. N CSI-RS resources must be configured with N NZP-CSI-RS resources corresponding to each other. Therefore, how to reduce the signaling overhead of configuring NZP-CSI-RS resources for different antenna port shut-down modes through additional means is an urgent problem to be solved.

[0163] like Figure 3 As shown, when the base station turns off 8 ports among the 16 antenna ports of CSI-RS resource 1, it is necessary to configure the corresponding NZP-CSI-RS resources to measure the interference from the paired UE2.

[0164] In addition, each CSI resource configuration can be associated with multiple powerControlOffset values. Correspondingly, the terminal device will calculate and report multiple CSIs on the configured CSI resources according to different powerControlOffset values. How to configure the corresponding powerControlOffset values ​​for different antenna port shutdown modes is also an urgent problem to be solved.

[0165] In order to facilitate understanding of the embodiments of the present application, the following points are explained:

[0166] First, in this application, unless otherwise specified or there is a logical conflict, the terms and / or descriptions between different embodiments are consistent and can be referenced to each other, and the technical features in different embodiments can be combined to form new embodiments according to their internal logical relationships.

[0167] Second, in this application, "at least one" means one or more, and "more than one" means two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone, where A and B can be singular or plural. In the text description of this application, the character " / " generally indicates that the associated objects before and after are in an "or" relationship. "At least one of the following" or similar expressions refers to any combination of these items, including any combination of single or plural items. For example, at least one of a, b and c can mean: a, or b, or c, or a and b, or a and c, or b and c, or a, b and c. Where a, b and c can be single or multiple, respectively.

[0168] Third, in the present application, "first", "second" and various numerical numbers (e.g., #1, #2, etc.) indicate distinctions made for ease of description and are not used to limit the scope of the embodiments of the present application. For example, to distinguish between different messages, etc., rather than to describe a specific order or sequence. It should be understood that the objects described in this way can be interchanged where appropriate so as to be able to describe solutions other than the embodiments of the present application.

[0169] Fourth, in this application, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus comprising a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to these processes, methods, products or apparatuses.

[0170] Fifth, in this application, "used for indication" may include being used for direct indication and being used for indirect indication. When describing that a certain indication information indicates A, it may include that the indication information directly indicates A or indirectly indicates A, but it does not mean that the indication information must carry A.

[0171] The indication method involved in the embodiments of the present application should be understood to include various methods that can enable the party to be indicated to know the information to be indicated. The information to be indicated can be sent as a whole or divided into multiple sub-information and sent separately, and the sending period and / or sending time of these sub-information can be the same or different. The present application does not limit the specific sending method.

[0172] The "indication information" in the embodiments of the present application may be an explicit indication, i.e., directly indicated by signaling, or obtained by combining other rules or other parameters or by deduction according to the parameters indicated by the signaling. It may also be an implicit indication, i.e., obtained by combining other rules or other parameters or by deduction according to a rule or relationship. The present application does not make any specific limitation on this.

[0173] Sixth, in this application, "protocol" may refer to a standard protocol in the field of communications, such as 5G protocol, NR protocol, and related protocols used in future communication systems, which are not limited in this application. "Predefined" may include pre-definition. For example, protocol definition. "Preconfiguration" can be implemented by pre-saving corresponding codes, tables, or other methods that can be used to indicate relevant information in the device, and this application does not limit its specific implementation method.

[0174] Seventh, in this application, "storage" may refer to storage in one or more memories. One or more memories may be separately set or integrated in an encoder or decoder, a processor, or a communication device. One or more memories may also be partially separately set and partially integrated in a decoder, a processor, or a communication device. The type of memory may be any form of storage medium, which is not limited in this application.

[0175] Eighth, in this application, if there is no logical conflict, "report", "feedback" and "send" can be interchangeable.

[0176] The communication method provided in the embodiment of the present application will be described in detail below with reference to the accompanying drawings, which can be applied to the above Figure 1 In the communication system shown.

[0177] Figure 4 2 is a flow chart of the communication method 200 provided in the embodiment of the present application. Figure 4 As shown, taking the interaction between a network device and a terminal as an example, the method includes the following steps, and the parts not described in detail can refer to the existing protocol.

[0178] S210, the network device generates first configuration information, the first configuration information is used to indicate a first channel state information reference signal CSI-RS resource, the first CSI-RS resource includes at least one second CSI-RS resource, the first configuration information includes L first indication information, each of the first indication information is used to indicate a power offset value, and / or, one of the second CSI-RS resources, the first configuration information is also used to indicate N interference resources, the N interference resources include the interference resources corresponding to each second CSI-RS resource in the at least one second CSI-RS resource, L, N are positive integers not less than 1.

[0179] The first configuration information is CSI report configuration information (CSI Report Configuration), the first indication information is CSI report sub-configuration information (CSI Report sub-configuration) information. The power offset value is a power offset (powerControlOffset) value of a physical downlink shared channel (physical downlink share channel, PDSCH) resource element (resource element, RE) relative to an NZP CSI-RS RE.

[0180] It should be understood that the terminal device also receives second configuration information, where the second configuration information is resource configuration information of the first configuration information. Exemplarily, the second configuration information is CSI resource configuration information (CSI Resource Configuration).

[0181] It should be understood that the first CSI-RS resource consists of resources on M ports, and the second CSI-RS resource consists of resources on F ports (hereinafter referred to as port subsets) among the M ports, and M≥F≥1.

[0182] It should be understood that the embodiment of the present application does not limit the ports included in the port subset corresponding to the at least one second CSI-RS resource.

[0183] As an example but not limitation, the port subsets corresponding to the at least one second CSI-RS resource include different numbers of ports.

[0184] As an example but not limitation, the port subsets corresponding to the at least one second CSI-RS resource include the same number of ports, and any two port subsets in the port subsets corresponding to the at least one second CSI-RS resource include at least one different port.

[0185] In one possible implementation, the first configuration information is used to indicate a first reference resource set, which includes multiple CSI-RS resources in addition to the first CSI-RS resource, wherein the resources in each CSI-RS resource do not overlap with the resources in the first CSI-RS resource, that is, the antenna port of each CSI-RS resource and the antenna port of the first CSI-RS resource do not include the same antenna port.

[0186] Exemplarily, the first reference resource set includes CSI-RS resource 1, CSI-RS resource 2 and CSI-RS resource 3, wherein CSI-RS resource 1 includes ports 1-10, CSI-RS resource 2 includes resources 11-20, and CSI-RS resource 3 includes resources 21-30.

[0187] It should be understood that each of the L second CSI-RS resources corresponds to K frequency offset values, wherein the number of frequency offset values ​​corresponding to each second CSI-RS resource can be the same or different.

[0188] It should be understood that the interference resource corresponding to the at least one second CSI-RS resource can be a CSI-IM resource, or a NZP-CSI-RS resource.

[0189] For example, Figure 5 As shown, CSI-RS resource 1 includes resources on 16 ports (an example of the first CSI-RS resource). When the base station turns off 8 of the antenna ports, the resources corresponding to the 8 antenna ports after being turned off (an example of the second CSI-RS resource) and CSI-RS resource 1 correspond to the same CSI-IM 1. CSI-RS resource 2 includes 16 ports. When the base station turns off 8 of the antenna ports, the resources corresponding to the 8 antenna ports after being turned off and CSI-RS resource 2 correspond to the same CSI-IM 2.

[0190] For example, Figure 6 As shown, CSI-RS resource 1 includes 16 ports, and the CSI-RS resource 1 corresponds to NZP-CSI-RS1. When the base station turns off the antennas of 8 ports, the resources corresponding to the remaining 8 ports after the antennas are turned off correspond to NZP-CSI-RS2.

[0191] It should be understood that the N interference resources may also include interference resources corresponding to the first CSI-RS resource.

[0192] It should be understood that the first indication information is only used to indicate a power offset value, and the power offset value is used to determine the CSI of the first CSI-RS resource.

[0193] It should be understood that the first indication information is only used to indicate the second CSI-RS resource, and the CSI of the second CSI-RS resource can be determined based on the power offset value carried in the first configuration information.

[0194] It should be understood that the first indication information is used to indicate the second CSI-RS resource and the power offset value, and the CSI of the second CSI-RS resource can be determined based on the power offset value.

[0195] It should be understood that in an embodiment of the present application, different power offset values ​​can be indicated for the same second CSI-RS resource through multiple first indication information, or the same power offset value can be indicated for different second CSI-RS resources, that is, different combinations of second CSI-RS resources and power offset values ​​can be indicated through different first indication information.

[0196] Exemplarily, the network device indicates CSI-RS resource #1 and a power offset value of 5 dB through indication information #1, and indicates CSI-RS resource #1 and a power offset value of 10 dB through indication information #2.

[0197] Exemplarily, the network device indicates CSI-RS resource #2 and a power offset value of 5dB through indication information #3, and indicates CSI-RS resource #3 and a power offset value of 5dB through indication information #2.

[0198] The following will combine Figure 7 and Figure 8 The specific configuration methods of the above-mentioned different types of interference resources and frequency offset values ​​are explained and will not be repeated here.

[0199] It is easy to understand that the base station also generates second configuration information, where the second configuration information is resource configuration information corresponding to the first configuration information. Exemplarily, the second configuration information is CSI resource configuration information (CSI Resource Config).

[0200] It should be understood that the embodiment of the present application does not limit the specific manner in which the first indication information indicates the power offset value.

[0201] Exemplarily, the first indication information includes a numerical value of the power offset value.

[0202] Exemplarily, the first indication information includes an index of the power offset value.

[0203] It should be understood that when the first indication information includes an index of a power offset value, the first configuration information or the second configuration information can include a set of numerical values ​​of the power offset value.

[0204] S220, the base station sends the first configuration information to the terminal; correspondingly, the terminal receives the first configuration information from the base station.

[0205] S230: The terminal device determines the L CSIs corresponding to the L first indication information according to the first configuration information.

[0206] Among them, the terminal device calculates the corresponding CSI for each first indication information in the L first indication information according to the first configuration information.

[0207] Specifically, the terminal device performs interference measurement on the interference resource corresponding to the first CSI-RS resource or the second CSI-RS resource according to the combination of the CSI-RS resources and the frequency offset value indicated by the L first indication information, and calculates CSI on the first CSI-RS resource or the second CSI-RS resource. Subsequently, the terminal device calculates L CSIs according to the power offset value corresponding to the first CSI-RS resource or the second CSI-RS resource, and corrects the calculated L CSIs according to the interference measured on the CSI-IM resource, thereby obtaining L CSI reports corresponding to the L first indication information.

[0208] As an example but not limitation, the interference resource is a CSI-IM resource, and the first indication information is used to indicate a power offset value. The terminal device determines the CSI corresponding to the first indication information based on the power offset value, the first CSI-RS resource, and the first CSI-IM resource, and the first CSI-IM resource is the interference resource corresponding to the at least one second CSI-RS resource.

[0209] As an example but not limitation, the interference resource is a CSI-IM resource, and the first indication information is used to indicate a second CSI-RS resource. The terminal device determines the CSI corresponding to the first indication information based on the second CSI-RS resource, a first power offset value, and the first CSI-IM resource, and the first power offset value is included in the first configuration information.

[0210] As an example but not limitation, the interference resource is a CSI-IM resource, and the first indication information is used to indicate a second CSI-RS resource and a power offset value, and the terminal device determines the CSI corresponding to the first indication information based on the second CSI-RS resource, the power offset value, and the first CSI-IM resource.

[0211] As an example but not limitation, the interference resource is an NZP-CSI-RS resource, and the first indication information is used to indicate a power offset value, and the terminal device determines the CSI corresponding to the first indication information based on the power offset value, the first CSI-RS resource, and the NZP-CSI-RS resource corresponding to the first CSI-RS resource and the power offset value, wherein the first CSI-RS resource and the NZP-CSI-RS resource corresponding to the power offset value are included in the first configuration information.

[0212] As an example but not limitation, the interference resource is an NZP-CSI-RS resource, and the first indication information is used to indicate a second CSI-RS resource, and the terminal device determines the CSI corresponding to the first indication information based on the first indication information, the second power offset value, and the second CSI-RS resource indicated by the first indication information and the NZP-CSI-RS resource corresponding to the second power offset value, wherein the second power offset value is included in the first configuration information.

[0213] As an example and not limitation, when the interference resource is a NZP-CSI-RS resource and the first indication information is used to indicate a second CSI-RS resource and a power offset value, the terminal device determines the CSI corresponding to the first indication information based on the second CSI-RS resource, the power offset value, and the second CSI-RS resource indicated by the first indication information and the NZP-CSI-RS resource corresponding to the power offset value.

[0214] It should be understood that the first power offset value and the second power offset value are examples of default power offset values ​​in the first configuration information, that is, when the first indication information is only used to indicate the second CSI-RS resource, the terminal device can determine the CSI corresponding to the first indication information based on the default power offset value in the first configuration information.

[0215] It should be understood that when the interference resource is a CSI-IM resource, the terminal device measures neighboring cell interference according to the CSI-IM resource. When the interference resource is a NZP-CSI-RS resource, the terminal device measures inter-stream interference according to the NZP-CSI-RS resource.

[0216] S240, the terminal device sends the L CSIs, and correspondingly, the network device receives the L CSIs.

[0217] Through the above method, when the antenna is dynamically shut down, corresponding interference resources and power offset values ​​can be configured for different shut-down modes, so that the interference measurement result is more accurate.

[0218] The following combination Figure 7 and Figure 8The scenarios of performing interference measurement through CSI-IM and the scenarios of performing interference measurement through NZP-CSI-RS are described in detail respectively.

[0219] First, the scenario in which CSI-IM is used for interference measurement is described. Figure 7 As shown, the following steps are included:

[0220] S310, the network device configures and sends configuration information #1, and correspondingly, the terminal device receives configuration information #1.

[0221] The configuration information #1 (an example of the first configuration information) includes configuration information of M ports (an example of the first CSI-RS resource), configuration information of the CSI-IM resource for interference measurement, and L CSI report sub-configuration information (CSIreportsub-configuration) (an example of the first indication information, hereinafter referred to as sub-configuration information). Each of the L sub-configuration information indicates a port subset (an example of the second CSI-RS resource), and / or a power offset value, and each port subset includes F ports among the M ports, M≥2, and F≥1.

[0222] It should be understood that each port subset includes a different number of ports, or the same number of ports but different ports, or both the number of ports and the ports are different.

[0223] Exemplarily, port subset 1 includes port 1 to port 8 of the 16 ports, port subset 2 includes port 2 to port 9 of the 16 ports, and port subset 3 includes port 8 to port 16 of the 16 ports.

[0224] Exemplarily, port subset 1' includes port 1 to port 4 of the 10 ports, port subset 2' includes port 5 to port 8 of the 10 ports, and port subset 3' includes port 9 and port 10 of the 10 ports.

[0225] The configuration information of the CSI-IM resources for interference measurement includes the CSI-IM resources corresponding to each sub-configuration information, or in other words, the configuration information of the CSI-IM resources for interference measurement includes the port subset indicated by each sub-configuration information, and / or the CSI-IM resources corresponding to the power offset value.

[0226] Further, one or more of the L sub-configuration information correspond to the same CSI-IM. Specifically, configuration information #1 includes a CSI-IM resource IE, and the L sub-configuration information all correspond to the CSI-IM resource IE.

[0227] It should be understood that the parameters configured in the CSI report config do not change with the change of the shutdown mode, while the parameters that change with the change of the shutdown mode are configured in the CSI reporting sub-configuration information.

[0228] Optionally, when the antenna shutdown mode changes, the base station can only send corresponding CSI reporting sub-configuration information to the terminal, thereby effectively reducing signaling overhead.

[0229] As an example but not a limitation, when the antenna port shutdown mode does not change, each CSI reporting sub-configuration information can only include a power offset value corresponding to each sub-configuration.

[0230] It should be understood that the CSI resource configuration (CSI resource Config) includes a mapping relationship between each resourceID and the corresponding physical resource.

[0231] It should be understood that the examples of this application do not limit the specific manner in which the sub-configuration information indicates the power offset value.

[0232] In a possible implementation, the index of the powerControlOffset value is carried in the sub-configuration information, and the terminal device can determine the value of the powerControlOffset value according to the index and the CSI resource configuration information. It should be understood that in this implementation, the CSI resource configuration information includes a set of powerControlOffset values.

[0233] In another possible implementation, the numerical value of the powerControlOffset value is carried in the sub-configuration information, and the terminal device can directly determine the powerControlOffset value according to the sub-configuration.

[0234] It is easy to understand that the network device also generates configuration information #2, which is the resource configuration information corresponding to the configuration information #1. Exemplarily, the configuration information #2 is CSI resource configuration information (CSI Resource Config).

[0235] It should be understood that in an embodiment of the present application, different powerControlOffset values ​​can be indicated for the same port subset through multiple sub-configuration information, or the same powerControlOffset value can be indicated for different port subsets, that is, different combinations of port subsets and powerControlOffset can be indicated through different sub-configuration information.

[0236] Exemplarily, the network device indicates port subset #1 and a powerControlOffset value of 5dB through indication information #1, and indicates CSI-RS resource #1 and a powerControlOffset value of 10dB through indication information #2.

[0237] Exemplarily, the network device indicates port subset #2 and a powerControlOffset value of 5dB through indication information #3, and indicates CSI-RS resource #3 and a powerControlOffset value of 5dB through indication information #2.

[0238] In a possible implementation, the configuration information #1 is used to indicate a first reference resource set, where the first reference resource set includes P ports in addition to the M ports, wherein the P ports do not include the same antenna port as the M ports.

[0239] Exemplarily, the first reference resource set includes port set 1, port set 2 and port set resource 3, wherein port set 1 includes ports 1-10, port set 2 includes resources 11-20, and port set 3 includes resources 21-30.

[0240] Optionally, the configuration information #1 can include only the configuration information of M ports and the CSI reporting sub-configuration information of L sub-configurations. And the CSI-IM resources corresponding to each sub-configuration information are included in the L CSI reporting sub-configuration information. Similarly, each sub-configuration information in the L sub-configuration information indicates a port subset, and / or a power offset value, and each port subset includes F ports out of M ports (an example of a second CSI-RS resource), M≥2, F≥1.

[0241] Likewise, in this implementation, the M ports and at least one port subset correspond to the same CSI-IM.

[0242] S320, the terminal device determines L CSIs corresponding to the L sub-configuration information according to configuration information #1.

[0243] As an example but not limitation, sub-configuration information #1 is used to indicate powerControlOffset#1. The terminal device determines the CSI corresponding to the sub-configuration information based on the powerControlOffset#1, the M ports, and the CSI-IM resource #1. The CSI-IM resource #1 is the interference resource corresponding to the at least one port subset (that is, the CSI-IM resource corresponding to the M ports).

[0244] As an example but not limitation, the sub-configuration information #2 is used to indicate port subset #2. The terminal device determines the CSI corresponding to the sub-configuration information based on the port subset #2, powerControlOffset #2, and CSI-IM resource #2, and the powerControlOffset #2 is included in the configuration information #1.

[0245] As an example but not limitation, when sub-configuration information #3 is used to indicate port subset #3 and powerControlOffset #3, the terminal device determines the CSI corresponding to the sub-configuration information #3 based on the port subset #3, the powerControlOffset #3, and the CSI-IM resource #3.

[0246] It should be understood that powerControlOffset#2 is an example of the default power offset value in configuration information #1, that is, when the sub-configuration information is only used to indicate a port subset, the terminal device can determine the CSI corresponding to the sub-configuration information based on the default power offset value in configuration information #1.

[0247] The specific determination process is as follows:

[0248] After receiving configuration information #1, the terminal device performs neighboring cell interference measurement on the CSI-IM resources corresponding to each sub-configuration information indicated by configuration information #1, and calculates CSI on the CSI-RS resources corresponding to the sub-configuration information.

[0249] In one possible implementation, the sub-configuration information includes an index of a powerControlOffset value. In this implementation, the terminal device determines the powerControlOffset value in the CSI resource configuration according to the index of the powerControlOffset value. Thus, the CSI is calculated according to each powerControlOffset value, and the obtained CSI is corrected according to the interference measured on the CSI-IM resource.

[0250] In another possible implementation, sub-configuration information #2 includes a powerControlOffset value. In this implementation, the terminal device calculates the corresponding CSI according to the powerControlOffset value included in the sub-configuration information #2, thereby obtaining the CSI, and corrects the obtained CSI according to the interference measured on the CSI-IM resource.

[0251] S330, the terminal device sends L CSIs, and correspondingly, the network device receives L CSIs.

[0252] Through the above method, the network device can configure the same CSI-IM resource for the port subset indicated by one or more sub-configurations included in the CSI reporting configuration, and / or the powerControlOffset value, so that the terminal device can measure the neighboring cell interference based on the above configuration, thereby reducing the physical overhead of configuring the CSI-IM resources, as well as the signaling overhead and interference measurement complexity of CSI-IM resource scheduling when the port shutdown mode changes.

[0253] The following describes the scenario in which NZP-CSI-RS is used for interference measurement. Figure 8 As shown, the following steps are included:

[0254] S410, the network device configures and sends configuration information #3, and correspondingly, the terminal device receives configuration information #3.

[0255] In a possible implementation, the configuration information #3 (another example of the first configuration information) includes configuration information of M ports (another example of the first CSI-RS resource) and L CSI reporting sub-configuration information (another example of the first indication information). Each of the L sub-configuration information indicates a port subset (another example of the second CSI-RS resource) and / or a power offset value, and each port subset includes F ports out of the M ports, M≥2, and F≥1.

[0256] It should be understood that the number of ports and / or ports included in each port subset are different. For the specific description of the port subset, please refer to step S310, which will not be repeated here.

[0257] Optionally, when the antenna shutdown mode changes, the base station can only send corresponding CSI reporting sub-configuration information to the terminal, thereby effectively reducing signaling overhead.

[0258] It should be understood that the CSI resource configuration (CSI resource Config) includes a mapping relationship between each resourceID and the corresponding physical resource.

[0259] It should be understood that in an embodiment of the present application, different powerControlOffset values ​​can be indicated for the same port subset through multiple sub-configuration information, or the same powerControlOffset value can be indicated for different port subsets, that is, different combinations of port subsets and powerControlOffset can be indicated through different sub-configuration information.

[0260] Exemplarily, the network device indicates port subset #1 and a powerControlOffset value of 5dB through indication information #1, and indicates CSI-RS resource #1 and a powerControlOffset value of 10dB through indication information #2.

[0261] Exemplarily, the network device indicates port subset #2 and a powerControlOffset value of 5dB through indication information #3, and indicates CSI-RS resource #3 and a powerControlOffset value of 5dB through indication information #2.

[0262] It should be understood that the example of this application does not limit the specific manner in which the sub-configuration information indicates the powerControlOffset value.

[0263] In a possible implementation, the index of the powerControlOffset value is carried in the sub-configuration information, and the terminal device can determine the value of the powerControlOffset value according to the index and the CSI resource configuration information. It should be understood that in this implementation, the CSI resource configuration information includes a set of powerControlOffset values.

[0264] In another possible implementation, the numerical value of the powerControlOffset value is carried in the sub-configuration information, and the terminal device can directly determine the powerControlOffset value according to the sub-configuration.

[0265] It is easy to understand that the network device also generates configuration information #2, which is the resource configuration information corresponding to the configuration information #1. Exemplarily, the configuration information #2 is CSI resource configuration information (CSI Resource Config).

[0266] In this implementation, each sub-configuration information in the L sub-configurations also includes an NZP-CSI-RS resource corresponding to the sub-configuration information, and the L NZP-CSI-RS resources are different from each other. In other words, any combination of a powerControlOffset value and M ports, and any combination of a powerControlOffset and at least one port subset corresponds to different NZP-CSI-RS resources.

[0267] It should be understood that the NZP-CSI-RS Resource IE indicating each different NZP-CSI-RS resource is different, and the physical resources (eg, time-frequency resources) mapped by different NZP-CSI-RS resource IEs are also different.

[0268] In another possible implementation, the configuration information #3 (another example of the first configuration information) includes configuration information of M ports (another example of the first CSI-RS resource), L CSI reporting sub-configuration information, and configuration information of NZP-CSI-RS resources for interference measurement. The configuration information of the NZP-CSI-RS resources for interference measurement includes L NZP-CSI-RS resource IEs. Each of the L sub-configuration information indicates a port subset (another example of the second CSI-RS resource), and / or a power offset value, and each port subset includes F ports out of M ports, M≥2, F≥1.

[0269] It should be understood that in this implementation, the NZP-CSI-RS resource corresponding to each sub-configuration information is determined from the NZP-CSI-RS configuration information according to the order of the sub-configuration information in the L sub-configuration information.

[0270] As an example but not a limitation, the configuration information #3 includes 5 CSI reporting sub-configuration information and 5 NZP-CSI-RS resource information elements, which are used to indicate the configuration information of sub-configuration 1, sub-configuration 2, and sub-configuration 3. Among them, sub-configuration information 1 corresponds to the first resource information element of the 5 NZP-CSI-RS resource information elements, sub-configuration information 2 corresponds to the second resource information element of the 5 NZP-CSI-RS resource information elements, and so on, sub-configuration information 5 corresponds to the fifth resource information element of the 5 NZP-CSI-RS resource information elements.

[0271] In a possible implementation, the configuration information #1 is used to indicate a first reference resource set, where the first reference resource set includes P ports in addition to the M ports, wherein the P ports do not include the same antenna port as the M ports.

[0272] Exemplarily, the first reference resource set includes port set 1, port set 2 and port set resource 3, wherein port set 1 includes ports 1-10, port set 2 includes resources 11-20, and port set 3 includes resources 21-30.

[0273] S420, the terminal device determines L CSIs corresponding to the L sub-configuration information according to configuration information #3.

[0274] As an example but not limitation, sub-configuration information #4 is used to indicate powerControlOffset#4. The terminal device determines the CSI corresponding to the sub-configuration information based on the powerControlOffset#4, the M ports, and the NZP-CSI-RS resource #1. The NZP-CSI-RS resource #1 is the NZP-CSI-RS resource corresponding to the sub-configuration information #4.

[0275] As an example but not limitation, the sub-configuration information #5 is used to indicate port subset #5. The terminal device determines the CSI corresponding to the sub-configuration information based on the port subset #5, powerControlOffset #5, and NZP-CSI-RS resource #2. The powerControlOffset #5 is included in the configuration information #3, and the NZP-CSI-RS resource #2 is the NZP-CSI-RS resource corresponding to the sub-configuration information #5.

[0276] As an example but not limitation, when sub-configuration information #6 is used to indicate port subset #6 and powerControlOffset #6, the terminal device determines the CSI corresponding to the sub-configuration information #6 based on the port subset #6, the powerControlOffset #6, and the NZP-CSI-RS resource #3, and the NZP-CSI-RS resource #3 is the NZP-CSI-RS resource corresponding to the sub-configuration information #6.

[0277] It should be understood that powerControlOffset#5 is an example of the default power offset value in configuration information #3, that is, when the sub-configuration information is only used to indicate a port subset, the terminal device can determine the CSI corresponding to the sub-configuration information based on the default power offset value in configuration information #1.

[0278] The specific determination process is as follows:

[0279] After receiving configuration information #3, the terminal device performs interference measurement on the NZP-CSI-RS resources corresponding to each sub-configuration information indicated by configuration information #3, and calculates CSI on the CSI-RS resources corresponding to the sub-configuration information.

[0280] In one possible implementation, sub-configuration information #1 includes an index of a powerControlOffset value. In this implementation, the terminal device determines the powerControlOffset value in the CSI resource configuration according to the index of the powerControlOffset value. Thus, the CSI is calculated according to each powerControlOffset value, and the obtained CSI is corrected according to the interference measured on the NZP-CSI-RS resource.

[0281] In another possible implementation, sub-configuration information #2 includes a powerControlOffset value. In this implementation, the terminal device calculates the corresponding CSI according to the powerControlOffset value included in the sub-configuration information #2, thereby obtaining the CSI, and corrects the obtained CSI according to the interference measured on the NZP-CSI-RS resource.

[0282] S430, the terminal device sends L CSIs corresponding to the L sub-configuration information, and correspondingly, the network device receives L CSIs corresponding to the L sub-configuration information.

[0283] Through the above method, in the scenario where NZP-CSI-RS is used for interference measurement, the terminal device can measure the interference between spatial streams in the CSI-RS configuration modes of different L ports among M ports according to different sub-configurations, and one or more powerControlOffsets in each sub-configuration, according to the NZP-CSI-RS resources corresponding to different sub-configurations, or the NZP-CSI-RS resources corresponding to each powerControlOffset in different sub-configurations.

[0284] The above is a detailed description of the communication method provided by the present application. The following describes the communication device provided by the present application. It should be understood that the description of the device embodiment corresponds to the description of the method embodiment. Therefore, the content not described in detail can be referred to the method embodiment above. For the sake of brevity, some content will not be repeated.

[0285] See also Fig. 9 , the present application provides a communication device 1000.

[0286] The communication device 1000 includes a processing module 1001 and a communication module 1002. The communication device 1000 may be a terminal device, or a communication device applied to a terminal device or used in conjunction with a terminal device and capable of implementing a method executed by the terminal device, such as a chip, a chip system, or a circuit. Alternatively, the communication device 1000 may be a network device, or a communication device applied to a network device or used in conjunction with a network device and capable of implementing a method executed by the network device, such as a chip, a chip system, or a circuit.

[0287] The communication module may also be referred to as a transceiver module, a transceiver, a transceiver, or a transceiver device, etc. The processing module may also be referred to as a processor, a processing board, a processing unit, or a processing device, etc. Optionally, the communication module is used to perform the sending operation and the receiving operation of the terminal device or the network device in the above method, and the device used to implement the receiving function in the communication module may be regarded as a receiving unit, and the device used to implement the sending function in the communication module may be regarded as a sending unit, that is, the communication module includes a receiving unit and a sending unit.

[0288] When the communication device 1000 is applied to a terminal device, the processing module 1001 can be used to implement Figures 4 to 8 The processing function of the terminal device in each embodiment, the communication module 1002 can be used to implement Figures 4 to 8 The sending and receiving functions of the terminal equipment in each of the embodiments.

[0289] When the communication device 1000 is applied to a network device, the processing module 1001 can be used to implement Figures 4 to 8 The processing function of the network device in each embodiment, the communication module 1002 can be used to implement Figures 4 to 8 The sending and receiving functions of the network equipment in each of the embodiments.

[0290] In addition, it should be noted that the aforementioned communication module and / or processing module can be implemented through a virtual module, for example, the processing module can be implemented through a software function unit or a virtual device, and the communication module can be implemented through a software function or a virtual device. Alternatively, the processing module or the communication module can also be implemented through a physical device, for example, if the device is implemented using a chip / chip circuit, the communication module can be an input-output circuit and / or a communication interface, performing input operations (corresponding to the aforementioned receiving operations) and output operations (corresponding to the aforementioned sending operations); the processing module is an integrated processor, microprocessor, integrated circuit or logic circuit, etc.

[0291] The division of modules in the embodiment of the device of the present application is schematic and is only a logical function division. There may be other division methods in actual implementation. In addition, each functional module in each example of the present application may be integrated into a processor, or may exist physically separately, or two or more modules may be integrated into one module. The above-mentioned integrated modules may be implemented in the form of hardware or in the form of software functional modules.

[0292] See also Fig.10 The present application also provides a communication device 1100. Optionally, the communication device 1100 may be a chip or a chip system. Optionally, in the present application, the chip system may be composed of a chip, or may include a chip and other discrete devices.

[0293] The communication device 1100 can be used to implement the functions of any network element (for example, a terminal device or a network device) in the communication system described in the foregoing examples. The communication device 1100 may include at least one processor 1110. Optionally, the processor 1110 is coupled to a memory, and the memory may be located within the device, or the memory may be integrated with the processor, or the memory may be located outside the device. For example, the communication device 1100 may also include at least one memory 1120. The memory 1120 stores the necessary computer programs, computer programs or instructions and / or data for implementing any of the above examples; the processor 1110 may execute the computer program stored in the memory 1120 to complete the method in any of the above examples.

[0294] The communication device 1100 may also include a communication interface 1130, and the communication device 1100 may exchange information with other devices through the communication interface 1130. Exemplarily, the communication interface 1130 may be a transceiver, a circuit, a bus, a module, a pin, or other types of communication interfaces. When the communication device 1100 is a chip-type device or circuit, the communication interface 1130 in the device 1100 may also be an input-output circuit that can input information (or receive information) and output information (or send information); the processor is an integrated processor, a microprocessor, an integrated circuit, or a logic circuit, and the processor can determine output information based on input information.

[0295] The coupling in this application is an indirect coupling or communication connection between devices, units or modules, which can be electrical, mechanical or other forms, and is used for information exchange between devices, units or modules. The processor 1110 may cooperate with the memory 1120 and the communication interface 1130. The specific connection medium between the above-mentioned processor 1110, memory 1120 and communication interface 1130 is not limited in this application.

[0296] Alternatively, if Fig.10As shown in FIG. 1 , the processor 1110, the memory 1120, and the communication interface 1130 are interconnected via a bus 1140. The type of the bus 1140 is not limited. For example, the bus 1140 may be a peripheral component interconnect (PCI) bus or an extended industry standard architecture (EISA) bus. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Fig.10 Only one bus is used in the diagram, but this does not mean that there is only one bus or only one type of bus.

[0297] Optionally, the memory and the processor in the above-mentioned device embodiments may be physically independent units, or the memory may be integrated with the processor, which is not limited in this document.

[0298] In addition, the present application also provides a computer-readable storage medium, which stores computer instructions. When the computer instructions are executed on a computer, the operations and / or processing performed by a network device or a terminal device in each method embodiment of the present application are executed.

[0299] In addition, the present application also provides a computer program product, which includes computer program code or instructions. When the computer program code or instructions are run on a computer, the operations and / or processing performed by the network device or terminal device in the various method embodiments of the present application are executed.

[0300] In this application, the processor may be a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component, and may implement or execute the methods, steps, and logic block diagrams disclosed in this application. A general-purpose processor may be a microprocessor or any conventional processor, etc. The steps of the method disclosed in this application may be directly embodied as being executed by a hardware processor, or may be executed by a combination of hardware and software modules in the processor.

[0301] In the present application, the memory may be a non-volatile memory, such as a hard disk drive (HDD) or a solid-state drive (SSD), etc., or a volatile memory (volatile memory), such as a random-access memory (RAM). The memory is any other medium that can be used to carry or store the desired program code in the form of instructions or data structures and can be accessed by a computer, but is not limited thereto. The memory in the present application may also be a circuit or any other device that can implement a storage function, for storing program instructions and / or data.

[0302] In a possible implementation, the communication device 1100 can be applied to a network device. Specifically, the communication device 1100 can be a network device, or a device that can support the network device to implement the corresponding functions of the network device in any of the above-mentioned examples. The memory 1120 stores a computer program (or instruction) and / or data that implements the functions of the network device in any of the above-mentioned examples. The processor 1110 can execute the computer program stored in the memory 1120 to complete the method executed by the network device in any of the above-mentioned examples. The communication interface in the communication device 1100 can be used to interact with a terminal device, send information to the terminal device, or receive information from the terminal device.

[0303] In another possible implementation, the communication device 1100 can be applied to a terminal device. Specifically, the communication device 1100 can be a terminal device, or a device that can support a terminal device and implement the functions of the terminal device in any of the above-mentioned examples. The memory 1120 stores a computer program (or instruction) and / or data that implements the functions of the terminal device in any of the above-mentioned examples. The processor 1110 can execute the computer program stored in the memory 1120 to complete the method executed by the terminal device in any of the above-mentioned examples. The communication interface in the communication device 1100 can be used to interact with a network device, send information to the network device, or receive information from the network device.

[0304] Based on the above embodiments, the present application also provides a communication system, including a network device and a terminal device. The communication system can be implemented Figures 4 to 7 The communication method provided in the illustrated embodiment.

[0305] The technical solution provided in the present application 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 program instructions are loaded and executed on a computer, the process or function according to the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, a terminal device, an access network device or other programmable device. The computer instructions can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions can be transmitted from a website site, a computer, a server or a 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 can be any available medium that can be accessed by a computer or a data storage device such as a server or a 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 digital video disc (DVD)), or a semiconductor medium, etc.

[0306] In the present application, under the premise of no logical contradiction, the examples may reference each other, for example, the methods and / or terms between method embodiments may reference each other, for example, the functions and / or terms between device embodiments may reference each other, for example, the functions and / or terms between device examples and method examples may reference each other.

[0307] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0308] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0309] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0310] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0311] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the unit is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0312] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0313] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0314] If the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application can be essentially or partly embodied in the form of a software product that contributes to the prior art. The computer software product is stored in a storage medium, including several instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method in each embodiment of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), disk or optical disk, etc., and other media that can store program codes.

[0315] 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: include: The terminal device receives first configuration information, where the first configuration information is used to indicate a first channel state information reference signal CSI-RS resource, where the first CSI-RS resource includes at least one second CSI-RS resource, where the first configuration information includes L first indication information, where each first indication information is used to indicate a power offset value, and / or, one second CSI-RS resource, where the first configuration information is further used to indicate N interference resources, where the N interference resources include interference resources corresponding to each second CSI-RS resource in the at least one second CSI-RS resource, where L and N are positive integers not less than 1; The terminal device determines, according to the first configuration information, L CSIs corresponding to the L first indication information respectively; The terminal device sends the L CSIs.

2. The method according to claim 1, characterized in that The interference resource is a CSI interference measurement CSI-IM resource, or a non-zero power NZP-CSI-RS resource.

3. The method according to claim 2, characterized in that The interference resource is a CSI-IM resource, N=1.

4. The method according to claim 3, characterized in that The terminal device determines, according to the first configuration information, L CSIs corresponding to the L first indication information respectively, including at least one of the following: One of the first indication information is used to indicate a power offset value, and the terminal device determines the CSI corresponding to one of the first indication information according to the power offset value, the first CSI-RS resource, and the first CSI-IM resource, where the first CSI-IM resource is an interference resource corresponding to the at least one second CSI-RS resource; One of the first indication information is used to indicate one of the second CSI-RS resources, and the terminal device determines the CSI corresponding to one of the first indication information according to one of the second CSI-RS resources, a first power offset value, and the first CSI-IM resource, where the first power offset value is included in the first configuration information; One of the first indication information is used to indicate one of the second CSI-RS resources and a power offset value, and the terminal device determines the CSI corresponding to one of the first indication information according to one of the second CSI-RS resources, the power offset value, and the first CSI-IM resource.

5. The method according to claim 2, characterized in that: The interference resource is an NZP-CSI-RS resource, N=L, and the NZP-CSI-RS resources corresponding to any two of the L first indication information are different.

6. The method according to claim 5, characterized in that The terminal device determines, according to the first configuration information, L CSIs corresponding to the L first indication information, including at least one of the following: One of the first indication information is used to indicate a power offset value, and the terminal device determines the CSI corresponding to one of the first indication information according to the power offset value, the first CSI-RS resource, and the NZP-CSI-RS resource corresponding to the first CSI-RS resource and the power offset value, wherein the first CSI-RS resource and the NZP-CSI-RS resource corresponding to the power offset value are included in the first configuration information; One of the first indication information is used to indicate one of the second CSI-RS resources, and the terminal device determines the CSI corresponding to one of the first indication information according to the first indication information, the second power offset value, and one of the second CSI-RS resources indicated by the first indication information and the NZP-CSI-RS resource corresponding to the second power offset value, wherein the second power offset value is included in the first configuration information; One of the first indication information is used to indicate one of the second CSI-RS resources and a power offset value, and the terminal device determines the CSI corresponding to the first indication information based on one of the second CSI-RS resources, the power offset value, and the NZP-CSI-RS resource corresponding to one of the first indication information.

7. The method according to any one of claims 1 to 6, characterized in that The interference resource corresponding to each of the second CSI-RS resources is included in the first configuration information and / or the first indication information.

8. A communication method, characterized in that: include: The network device generates first configuration information received by the terminal device, where the first configuration information is used to indicate a first channel state information reference signal CSI-RS resource, where the first CSI-RS resource includes at least one second CSI-RS resource, where the first configuration information includes L first indication information, where each first indication information is used to indicate a power offset value, and / or, one second CSI-RS resource, where the first configuration information is further used to indicate N interference resources, where the N interference resources include interference resources corresponding to each second CSI-RS resource in the at least one second CSI-RS resource, where L and N are positive integers not less than 1; The network device sends the first configuration information; The network device receives the L CSIs, where the L CSIs correspond to the L first indication information respectively.

9. The method according to claim 8, characterized in that The interference resource is a CSI interference measurement CSI-IM resource, or a non-zero power NZP-CSI-RS resource.

10. The method according to claim 9, characterized in that The interference resource is a CSI-IM resource, N=1.

11. The method according to claim 9, characterized in that The interference resource is an NZP-CSI-RS resource, and the NZP-CSI-RS resources corresponding to any two of the L first indication information are different.

12. The method according to any one of claims 8 to 11, characterized in that The interference resource corresponding to each of the second CSI-RS resources is included in the first configuration information and / or the first indication information.

13. A communication device, characterized in that: The communication device comprises a unit or a module for executing the method according to any one of claims 1-7, 8-12.

14. A communication device, characterized in that: include: A processor, the processor is coupled to a memory, and the processor is used to call computer program instructions stored in the memory to execute the method according to any one of claims 1 to 7, or the method according to any one of claims 8 to 12.

15. A chip, characterized in that: It includes a processor and a communication interface, wherein the communication interface is used to receive data and / or information and transmit the received data and / or information to the processor, and the processor processes the data and / or information to execute the method as described in any one of claims 1 to 7, or the method as described in any one of claims 8 to 12.

16. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores instructions, and when the instructions are executed on a computer, the computer is caused to execute the method according to any one of claims 1 to 7, or the computer is caused to execute the method according to any one of claims 8 to 12.

17. A computer program product, characterized in that The computer-readable storage medium stores instructions, and when the instructions are executed on a computer, the computer is caused to execute the method according to any one of claims 1 to 7, or the computer is caused to execute the method according to any one of claims 8 to 12.

Images