Configuration method, communication device, communication system, and storage medium

Abstract

The present disclosure provides a configuration method, a communication device, a communication system, and a storage medium. The method comprises: sending first information to a terminal, wherein the first information is used for configuring first signal resources respectively corresponding to N transmission reception points (TRPs), N is a positive integer, and N is greater than or equal to 2; the first signal resources are used for determining channel state information (CSI); the N TRPs are used for performing coherent joint transmission (CJT) with the terminal; and the N TRPs meet at least one of the following conditions: the N TRPs at least include two TRPs having different numbers of antenna ports, and the N TRPs at least include one TRP having the number of antenna ports greater than a predetermined value. The method of the present disclosure ensures the accuracy of CSI computation in an "asymmetric CJT scenario" or a scenario in which "the number of TRP antenna ports for CJT is greater than a predetermined value", thereby expanding the application range of a CSI-RS resource configuration method.

Description

Configuration method, communication equipment, communication system, storage medium Technical Field

[0001] This disclosure relates to the field of communication technology, and in particular to configuration methods, communication devices, communication systems, and storage media. Background Technology

[0002] In communication systems, multiple Transmission Reception Points (TRPs) are typically used to perform coherent joint transmission (CJT) with the terminal in order to improve system spectral efficiency or edge coverage. Summary of the Invention

[0003] This disclosure provides configuration methods, communication devices, communication systems, and storage media.

[0004] According to a first aspect of the present disclosure, a configuration method is proposed, executed by a network device, comprising: sending first information to a terminal, the first information being used to configure first signal resources corresponding to N transmit / receive points (TRPs), where N is a positive integer and N≥2, and the first signal resources being used to determine channel state information (CSI); wherein the N TRPs are used for coherent transmission (CJT) with the terminal, and the N TRPs satisfy at least one of the following: at least two of the N TRPs have different numbers of antenna ports, or at least one of the N TRPs has a number of antenna ports greater than a predetermined value.

[0005] According to a second aspect of the present disclosure, a configuration method is proposed, executed by a terminal, the method comprising: receiving first information sent by a network device, the first information being used to configure first signal resources corresponding to N transmit / receive points (TRPs), where N is a positive integer and N≥2, and the first signal resources being used to determine channel state information (CSI); wherein the N TRPs are used to perform coherent transmission (CJT) with the terminal, and the N TRPs satisfy at least one of the following: at least two of the N TRPs have different numbers of antenna ports, or at least one of the N TRPs has a number of antenna ports greater than a predetermined value.

[0006] According to a third aspect of the present disclosure, a network device is provided, comprising: a transceiver module, configured to send first information to a terminal, the first information being configured to configure first signal resources corresponding to N transmit / receive points (TRPs), where N is a positive integer and N≥2, and the first signal resources being configured to determine channel state information (CSI); wherein the N TRPs are used for coherent transmission (CJT) with the terminal, and the N TRPs satisfy at least one of the following: at least two of the N TRPs have different numbers of antenna ports, or at least one of the N TRPs has a number of antenna ports greater than a predetermined value.

[0007] According to a fourth aspect of the present disclosure, a terminal is provided, comprising: a transceiver module, configured to receive first information sent by a network device, the first information being configured to configure first signal resources corresponding to N transmit / receive points (TRPs), where N is a positive integer and N≥2, and the first signal resources being configured to determine channel state information (CSI); wherein the N TRPs are used to perform coherent transmission (CJT) with the terminal, and the N TRPs satisfy at least one of the following: at least two of the N TRPs include TRPs with different numbers of antenna ports, or at least one of the N TRPs includes TRPs with a number of antenna ports greater than a predetermined value.

[0008] According to a fifth aspect of the embodiments of this disclosure, a communication device is provided, comprising:

[0009] One or more processors;

[0010] The processor is configured to invoke instructions to cause the communication device to execute any of the configuration methods described in the first or second aspect.

[0011] According to a sixth aspect of the present disclosure, a communication system is provided, including a terminal and a network device, wherein the network device is configured to implement the configuration method described in the first aspect, and the terminal is configured to implement the configuration method described in the second aspect.

[0012] According to a seventh aspect of the present disclosure, a storage medium is provided that stores instructions that, when executed on a communication device, cause the communication device to perform a configuration method as described in any of the first to second aspects.

[0013] According to an eighth aspect of the present disclosure, the present disclosure provides a program product including a computer program that, when executed by a communication device, implements the configuration method as described in any of the first to second aspects.

[0014] According to a ninth aspect of the present disclosure, the present disclosure provides a computer program that, when run on a computer, causes the computer to perform a configuration method as described in any of the first to second aspects.

[0015] It is understood that the aforementioned terminals, network devices, communication devices, communication systems, storage media, program products, and computer programs are all used to execute the methods proposed in the embodiments of this disclosure. Therefore, the beneficial effects they can achieve can be referred to the beneficial effects in the corresponding methods, and will not be repeated here. Attached Figure Description

[0016] The above and / or additional aspects and advantages of this disclosure will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which:

[0017] Figure 1 is a schematic diagram of the architecture of the communication system provided in an embodiment of this disclosure;

[0018] Figure 2 is an interactive schematic diagram of a configuration method provided in an embodiment of this disclosure;

[0019] Figure 3A is a schematic flowchart of a configuration method provided in another embodiment of this disclosure;

[0020] Figure 3B is a schematic flowchart of a configuration method provided in another embodiment of this disclosure;

[0021] Figure 4A is a schematic diagram of the structure of a network device provided in an embodiment of this disclosure;

[0022] Figure 4B is a schematic diagram of the structure of a terminal provided in an embodiment of this disclosure;

[0023] Figure 5A is a schematic diagram of the structure of a communication device provided in an embodiment of this disclosure;

[0024] Figure 5B is a schematic diagram of the structure of a chip provided in an embodiment of this disclosure. Detailed Implementation

[0025] This disclosure provides a configuration method, a communication device, a communication system, and a storage medium.

[0026] In a first aspect, embodiments of this disclosure propose a configuration method executed by a network device. The method includes: sending first information to a terminal, the first information being used to configure first signal resources corresponding to N transmit / receive points (TRPs), where N is a positive integer and N≥2, and the first signal resources are used to determine channel state information (CSI); wherein the N TRPs are used for coherent transmission (CJT) with the terminal, and the N TRPs satisfy at least one of the following: at least two of the N TRPs have different numbers of antenna ports, or at least one of the N TRPs has a number of antenna ports greater than a predetermined value.

[0027] In the above embodiments, when at least two of the N TRPs transmitted by the terminal CJT have different numbers of antenna ports, and / or when at least one of the N TRPs transmitted by the terminal CJT has a number of antenna ports greater than a predetermined value, the network device will send first information to the terminal. The first information can be used to configure the first signal resources corresponding to the N TRPs respectively. The first signal resources are used to determine CSI. The first signal resources can be understood, for example, as CSI-RS resources. Therefore, this disclosure proposes a CSI-RS resource configuration method for scenarios involving "asymmetric CJT scenarios (i.e., at least two TRPs with different numbers of antenna ports among multiple TRPs of the terminal CJT)" and "the number of antenna ports of the TRPs of the CJT is greater than a predetermined value." This method ensures that when the terminal is in an "asymmetric CJT scenario" or a scenario where "the number of antenna ports of the TRPs of the CJT is greater than a predetermined value," the network device can accurately configure appropriate CSI-RS resources for each TRP. This guarantees that the terminal can accurately calculate the CSI corresponding to each TRP, ensuring the accuracy of CSI calculation in "asymmetric CJT scenarios" or scenarios where "the number of antenna ports of the TRPs of the CJT is greater than a predetermined value," thus ensuring communication quality. Furthermore, this method is applicable to the resource configuration of TRPs for N arbitrary antenna port CJTs, expanding the scope of application of the CSI-RS resource configuration method.

[0028] In conjunction with some embodiments of the first aspect, in some embodiments, the first information is used to configure a first resource set, the first resource set including a plurality of first signal resources, all the first signal resources in the first resource set being divided into N resource groups, each resource group including one or more first signal resources, different resource groups corresponding to different TRPs, the first signal resources in the resource group being used to determine the CSI of the TRP corresponding to the resource group; wherein, when the number of first signal resources in the resource group is greater than 1, the total number of ports corresponding to all the first signal resources in the resource group is the same as the number of ports of the TRP corresponding to the resource group.

[0029] In conjunction with some embodiments of the first aspect, in some embodiments, the first resource set occupies M time-domain units; a resource group occupies X time-domain units, and the X values ​​corresponding to different resource groups are the same or different; wherein, X and M are positive integers, X≤M, when M is greater than 1, the M time-domain units are consecutive, and when X is greater than 1, the X time-domain units are consecutive.

[0030] In conjunction with some embodiments of the first aspect, in some embodiments, the grouping method of the N resource groups includes a first method or a second method; wherein, the first method includes: dividing the first signal resources in the first resource set into N resource groups in sequence according to the resource position arrangement order of the first signal resources in the first resource set; the second method includes: dividing the first signal resources in the first resource set into N resource groups in sequence according to the resource identifier ID arrangement order of the first signal resources in the first resource set.

[0031] In conjunction with some embodiments of the first aspect, in some embodiments, different first signal resources in the same resource group correspond to the same first parameter; the first parameters corresponding to different first signal resources in different resource groups are configured independently by the network device.

[0032] In conjunction with some embodiments of the first aspect, in some embodiments, the first information is used to configure N second resource sets, each second resource set including at least one first signal resource, different second resource sets corresponding to different TRPs, and the first signal resources in the second resource sets are used to determine the CSI of the TRP corresponding to the second resource set; wherein, when the number of first signal resources in the second resource set is greater than 1, the total number of ports corresponding to all first signal resources in the second resource set is the same as the number of ports of the TRP corresponding to the second resource set.

[0033] In conjunction with some embodiments of the first aspect, in some embodiments, N second resource sets occupy M time-domain units; one second resource set occupies X time-domain units, and the X values ​​corresponding to different second resource sets are the same or different; wherein X and M are positive integers, X≤M, when M is greater than 1, the M time-domain units are continuous, and when X is greater than 1, the X time-domain units are continuous.

[0034] In conjunction with some embodiments of the first aspect, in some embodiments, different first signal resources in the same second resource set correspond to the same first parameter; the first parameters corresponding to different first signal resources in different second resource sets are configured independently by the network device, the frequency domain density of the first signal resources in different second resource sets is the same, and the transmission bandwidth of the first signal resources in different second resource sets is the same.

[0035] In conjunction with some embodiments of the first aspect, in some embodiments, the first parameter includes at least one of the following: a quasi-co-located QCL parameter; a first offset value, the first offset value being used to indicate the ratio between the energy on each resource element (RE) of the physical downlink shared channel (PDSCH) and the energy on each RE of the first signal resource; and a second offset value, the second offset value being used to indicate the ratio between the energy on each RE of the first signal resource and the energy on each RE of the synchronization signal block (SSB) or physical broadcast channel (PBCH).

[0036] In the above embodiments, for scenarios of "asymmetric CJT" or "the number of TRP antenna ports of CJT is greater than a predetermined value", the specific configuration of the first signal resource (i.e., CSI-RS resource) is explained so that when the terminal is in a scenario of "asymmetric CJT" or "the number of TRP antenna ports of CJT is greater than a predetermined value", the network device can accurately configure appropriate CSI-RS resources for each TRP, ensuring that the terminal can accurately calculate the CSI corresponding to each TRP. This guarantees the accuracy of CSI calculation in scenarios of "asymmetric CJT" or "the number of TRP antenna ports of CJT is greater than a predetermined value", thus ensuring communication quality. Furthermore, the method disclosed herein can be applied to the resource configuration of TRPs of N arbitrary antenna port CJTs, expanding the applicability of the CSI-RS resource configuration method.

[0037] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes: sending second information to the terminal, the second information being used to instruct the terminal to select Y resource groups from N resource groups, or, the second information being used to instruct the terminal to select Y second resource sets from N second resource sets, or, the second information being used to instruct the terminal to select A first signal resources from the first signal resources configured in the first information; wherein, the Y resource groups are resource groups used by the terminal when performing CJT, the Y second resource sets are second resource sets used by the terminal when performing CJT, and the A first signal resources are first signal resources used by the terminal when performing CJT, A and Y are positive integers, N≥Y, A≤S, S is the total number of first signal resources configured in the first information, and S≥N; receiving third information sent by the terminal, the third information being used to instruct any one of the following: the Y resource groups selected by the terminal, the Y second resource sets selected by the terminal, or the A first signal resources selected by the terminal.

[0038] In conjunction with some embodiments of the first aspect, in some embodiments, the third information is a first indication value, and when the first indication value is different, the resource group identified by the third information is different, or the second resource set is different, or the first signal resource is different.

[0039] In conjunction with some embodiments of the first aspect, in some embodiments, the third information is a bitmap; wherein, the bits in the bitmap correspond to N resource groups respectively, and the bit value carried by the bit is used to indicate whether the resource group corresponding to the bit is selected by the terminal; when the bit carries a first value, it indicates that the resource group corresponding to the bit is selected by the terminal; when the bit carries a second value, it indicates that the resource group corresponding to the bit is not selected by the terminal; or, the bits in the bitmap correspond to N second resource sets respectively, and the bit value carried by the bit is used to indicate whether the second resource set corresponding to the bit is selected by the terminal. Terminal selection: when the bit carries a first value, it indicates that the second resource set corresponding to the bit is selected by the terminal; when the bit carries a second value, it indicates that the second resource set corresponding to the bit is not selected by the terminal. Alternatively, the bits in the bit diagram correspond to the first signal resources configured by the first information, and the bit value carried by the bit is used to indicate whether the first signal resource corresponding to the bit is selected by the terminal. When the bit carries a first value, it indicates that the first signal resource corresponding to the bit is selected by the terminal; when the bit carries a second value, it indicates that the first signal resource corresponding to the bit is not selected by the terminal.

[0040] In conjunction with some embodiments of the first aspect, in some embodiments, the bits in the bitmap correspond to N resource groups respectively, including: the i1th bit in the bitmap corresponds to the i1th resource group; the bits in the bitmap correspond to N second resource sets respectively, including: the i1th bit in the bitmap corresponds to the i1th second resource set; the bits in the bitmap correspond to the first signal resources configured by the first information respectively, including: the i2th bit in the bitmap corresponds to the i2th first signal resource configured by the first information; wherein, i1 and i2 are positive integers, i1 = 1, 2, 3...N; i2 = 1, 2, 3...S.

[0041] In the above embodiments, the terminal does not passively perform CJT with N TRPs based on the resources configured by the first information. The terminal can flexibly select Y resource groups, Y second resource sets, or A first signal resources to use during the actual CJT, and perform CJT with Y of the N TRPs using the selected Y resource groups, Y second resource sets, or A first signal resources, thus improving the flexibility of CJT communication. Furthermore, when selecting Y resource groups, Y second resource sets, or A first signal resources, the terminal can choose the most reasonable, efficient, and highest-quality Y resource groups, Y second resource sets, or A first signal resources based on its current communication capabilities and / or communication status. Therefore, when the terminal subsequently performs CJT with the TRPs based on the Y resource groups, Y second resource sets, or A first signal resources, the accuracy of the terminal's CJT can be ensured. Furthermore, the terminal will also indicate to the network device the Y resource groups, Y second resource sets, or A first signal resources selected by the terminal, so that the network device knows which resources the terminal uses during CJT, thereby facilitating the network device to schedule or control the TRPs corresponding to these resources to perform CJT with the terminal, ensuring the stability of CJT.

[0042] Secondly, this disclosure provides a configuration method executed by a terminal. The method includes: receiving first information sent by a network device, the first information being used to configure first signal resources corresponding to N transmit / receive points (TRPs), where N is a positive integer and N≥2, and the first signal resources are used to determine channel state information (CSI); wherein the N TRPs are used for coherent transmission (CJT) with the terminal, and the N TRPs satisfy at least one of the following: at least two of the N TRPs have different numbers of antenna ports, or at least one of the N TRPs has a number of antenna ports greater than a predetermined value.

[0043] In conjunction with some embodiments of the second aspect, in some embodiments, the first information is used to configure a first resource set, the first resource set including a plurality of first signal resources, all the first signal resources in the first resource set being divided into N resource groups, each resource group including one or more first signal resources, different resource groups corresponding to different TRPs, the first signal resources in the resource group being used to determine the CSI of the TRP corresponding to the resource group; wherein, when the number of first signal resources in the resource group is greater than 1, the total number of ports corresponding to all the first signal resources in the resource group is the same as the number of ports of the TRP corresponding to the resource group.

[0044] In conjunction with some embodiments of the second aspect, in some embodiments, the first resource set occupies M time-domain units; a resource group occupies X time-domain units, and the X values ​​corresponding to different resource groups are the same or different; wherein, X and M are positive integers, X≤M, when M is greater than 1, the M time-domain units are continuous, and when X is greater than 1, the X time-domain units are continuous.

[0045] In conjunction with some embodiments of the second aspect, in some embodiments, the grouping method of the N resource groups includes a first method or a second method; wherein, the first method includes: dividing the first signal resources in the first resource set into N resource groups in sequence according to the resource position arrangement order of the first signal resources in the first resource set; the second method includes: dividing the first signal resources in the first resource set into N resource groups in sequence according to the resource identifier ID arrangement order of the first signal resources in the first resource set.

[0046] In conjunction with some embodiments of the second aspect, in some embodiments, different first signal resources in the same resource group correspond to the same first parameter; the first parameters corresponding to different first signal resources in different resource groups are configured independently by the network device.

[0047] In conjunction with some embodiments of the second aspect, in some embodiments, the first information is used to configure N second resource sets, each second resource set including at least one first signal resource, different second resource sets corresponding to different TRPs, and the first signal resources in the second resource sets are used to determine the CSI of the TRP corresponding to the second resource set; wherein, when the number of first signal resources in the second resource set is greater than 1, the total number of ports corresponding to all first signal resources in the second resource set is the same as the number of ports of the TRP corresponding to the second resource set.

[0048] In conjunction with some embodiments of the second aspect, in some embodiments, N second resource sets occupy M time domain units; one second resource set occupies X time domain units, and the X values ​​corresponding to different second resource sets are the same or different; wherein, X and M are positive integers, X≤M, when M is greater than 1, the M time domain units are continuous, and when X is greater than 1, the X time domain units are continuous.

[0049] In conjunction with some embodiments of the second aspect, in some embodiments, different first signal resources in the same second resource set correspond to the same first parameter; the first parameters corresponding to different first signal resources in different second resource sets are configured independently by the network device, the frequency domain density of the first signal resources in different second resource sets is the same, and the transmission bandwidth of the first signal resources in different second resource sets is the same.

[0050] In conjunction with some embodiments of the second aspect, in some embodiments, the first parameter includes at least one of the following: a quasi-co-located QCL parameter; a first offset value, the first offset value being used to indicate the ratio between the energy on each resource element (RE) of the physical downlink shared channel (PDSCH) and the energy on each RE of the first signal resource; and a second offset value, the second offset value being used to indicate the ratio between the energy on each RE of the first signal resource and the energy on each RE of the synchronization signal block (SSB) or physical broadcast channel (PBCH).

[0051] In conjunction with some embodiments of the second aspect, in some embodiments, the method further includes: receiving second information sent by the network device, the second information being used to instruct the terminal to select Y resource groups from N resource groups, or, the second information being used to instruct the terminal to select Y second resource sets from N second resource sets, or, the second information being used to instruct the terminal to select A first signal resources from the first signal resources configured in the first information; wherein, the Y resource groups are resource groups used by the terminal when performing CJT, the Y second resource sets are second resource sets used by the terminal when performing CJT, and the A first signal resources are first signal resources used by the terminal when performing CJT, A and Y are positive integers, N≥Y, A≤S, S is the total number of first signal resources configured in the first information, and S≥N; sending third information to the network device, the third information being used to instruct any one of the following: the Y resource groups selected by the terminal, the Y second resource sets selected by the terminal, or the A first signal resources selected by the terminal.

[0052] In conjunction with some embodiments of the second aspect, in some embodiments, the third information is a first indication value. When the first indication value is different, the resource group identified by the third information is different, or the second resource set is different, or the first signal resource is different.

[0053] In conjunction with some embodiments of the second aspect, in some embodiments, the third information is a bitmap; wherein, the bits in the bitmap correspond to N resource groups respectively, and the bit value carried by the bit is used to indicate whether the resource group corresponding to the bit is selected by the terminal; when the bit carries a first value, it indicates that the resource group corresponding to the bit is selected by the terminal; when the bit carries a second value, it indicates that the resource group corresponding to the bit is not selected by the terminal; or, the bits in the bitmap correspond to N second resource sets respectively, and the bit value carried by the bit is used to indicate whether the second resource set corresponding to the bit is selected by the terminal. Terminal selection: when the bit carries a first value, it indicates that the second resource set corresponding to the bit is selected by the terminal; when the bit carries a second value, it indicates that the second resource set corresponding to the bit is not selected by the terminal. Alternatively, the bits in the bit diagram correspond to the first signal resources configured by the first information, and the bit value carried by the bit is used to indicate whether the first signal resource corresponding to the bit is selected by the terminal. When the bit carries a first value, it indicates that the first signal resource corresponding to the bit is selected by the terminal; when the bit carries a second value, it indicates that the first signal resource corresponding to the bit is not selected by the terminal.

[0054] In conjunction with some embodiments of the second aspect, in some embodiments, the bits in the bitmap correspond to N resource groups respectively, including: the i1th bit in the bitmap corresponds to the i1th resource group; the bits in the bitmap correspond to N second resource sets respectively, including: the i1th bit in the bitmap corresponds to the i1th second resource set; the bits in the bitmap correspond to the first signal resources configured by the first information respectively, including: the i2th bit in the bitmap corresponds to the i2th first signal resource configured by the first information; wherein, i1 and i2 are positive integers, i1 = 1, 2, 3...N; i2 = 1, 2, 3...S.

[0055] Thirdly, this disclosure provides a network device, including: a transceiver module, used to send first information to a terminal, the first information being used to configure first signal resources corresponding to N transmit / receive points (TRPs), where N is a positive integer and N≥2, and the first signal resources are used to determine channel state information (CSI); wherein the N TRPs are used to perform coherent transmission (CJT) with the terminal, and the N TRPs satisfy at least one of the following: at least two of the N TRPs have different numbers of antenna ports, or at least one of the N TRPs has a number of antenna ports greater than a predetermined value.

[0056] Fourthly, this disclosure provides a terminal, comprising: a transceiver module, configured to receive first information sent by a network device, the first information being configured to configure first signal resources corresponding to N transmit / receive points (TRPs), where N is a positive integer and N≥2, and the first signal resources being configured to determine channel state information (CSI); wherein the N TRPs are used for coherent transmission (CJT) with the terminal, and the N TRPs satisfy at least one of the following: at least two of the N TRPs have different numbers of antenna ports, or at least one of the N TRPs has a number of antenna ports greater than a predetermined value.

[0057] Fifthly, embodiments of this disclosure provide a communication device, which includes: one or more processors; one or more memories for storing instructions; wherein the processors are configured to invoke the instructions to cause the communication device to perform the methods described in the first aspect, optional implementations of the first aspect, the second aspect, optional implementations of the second aspect, the third aspect, and optional implementations of the third aspect.

[0058] In a sixth aspect, embodiments of this disclosure provide a communication system comprising: a terminal and a network device; wherein the network device is configured to perform the method described in the first aspect and optional implementations thereof, and the terminal is configured to perform the method described in the second aspect and optional implementations thereof.

[0059] In a seventh aspect, embodiments of this disclosure provide a storage medium storing instructions that, when executed on a communication device, cause the communication device to perform the method described in the first aspect, an optional implementation of the first aspect, the second aspect, and an optional implementation of the second aspect.

[0060] Eighthly, embodiments of this disclosure provide a program product including a computer program that, when executed by a processor, implements the methods described in the first aspect, optional implementations of the first aspect, the second aspect, and optional implementations of the second aspect.

[0061] In a ninth aspect, embodiments of this disclosure provide a computer program that, when run on a computer, causes the computer to perform the methods described in the first aspect, an optional implementation of the first aspect, the second aspect, and an optional implementation of the second aspect.

[0062] It is understood that the aforementioned terminals, network devices, communication devices, communication systems, storage media, program products, and computer programs are all used to execute the methods proposed in the embodiments of this disclosure. Therefore, the beneficial effects they can achieve can be referred to the beneficial effects in the corresponding methods, and will not be repeated here.

[0063] This disclosure provides a rescue request method, communication equipment, communication system, and storage medium. In some embodiments, the terms resource selection method, information processing method, and configuration method can be used interchangeably.

[0064] This disclosure is not exhaustive, but merely illustrative of some embodiments, and is not intended to limit the scope of protection of this disclosure. Unless otherwise specified, each step in a particular embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined. For example, a solution after removing some steps in a particular embodiment can also be implemented as an independent embodiment, and the order of the steps in a particular embodiment can be arbitrarily interchanged. Furthermore, the optional implementation methods in a particular embodiment can be arbitrarily combined; moreover, the embodiments can be arbitrarily combined, for example, some or all steps of different embodiments can be arbitrarily combined, and a particular embodiment can be arbitrarily combined with the optional implementation methods of other embodiments. In all embodiments of this disclosure, unless otherwise specified or logically conflicting, the terminology and / or descriptions between the embodiments are consistent and can be mutually referenced. Technical features in different embodiments can be combined to form new embodiments based on their inherent logical relationships.

[0065] The terminology used in the embodiments of this disclosure is for the purpose of describing particular embodiments only and is not intended to limit the scope of this disclosure.

[0066] In this embodiment of the disclosure, unless otherwise stated, elements expressed in the singular form, such as "a," "an," "the," "the," "the," "the," "the," "the," "this," etc., can mean "one and only one," or "one or more," "at least one," etc. For example, when using articles such as "a," "an," "the," etc. in translation, the noun following the article can be understood as either a singular expression or a plural expression.

[0067] In the embodiments disclosed herein, "multiple" refers to two or more.

[0068] In some embodiments, the terms “at least one of A or B, at least one of A and B”, “one or more”, “a plurality of”, “multiple”, etc., may be used interchangeably.

[0069] In some embodiments, the notation "at least one of A and B", "A and / or B", "A in one case, B in another", "in response to one case A, in response to another case B", etc., may include the following technical solutions depending on the situation: in some embodiments, A (execute A regardless of whether there is a branch B); in some embodiments, B (execute B regardless of whether there is a branch A); in some embodiments, execution is selected from A and B (A and B are selectively executed); in some embodiments, both A and B are executed. The same applies when there are more branches such as A, B, C, etc.

[0070] In some embodiments, the notation "A or B" may include the following technical solutions, depending on the situation: in some embodiments, A (execute A regardless of whether a branch B exists); in some embodiments, B (execute B regardless of whether a branch A exists); in some embodiments, execution is selected from A and B (A and B are selectively executed). The same applies when there are more branches such as A, B, and C.

[0071] The prefixes "first," "second," etc., used in the embodiments of this disclosure are merely for distinguishing different descriptive objects and do not impose restrictions on the position, order, priority, quantity, or content of the descriptive objects. The description of the descriptive objects is found in the claims or the context of the embodiments, and the use of prefixes should not constitute unnecessary restrictions. For example, if the descriptive object is a "field," the ordinal numbers preceding "field" in "first field" and "second field" do not restrict the position or order of the "fields." "First" and "second" do not restrict whether the "fields" they modify are in the same message, nor do they restrict the order of "first field" and "second field." Similarly, if the descriptive object is a "level," the ordinal numbers preceding "level" in "first level" and "second level" do not restrict the priority between "levels." Furthermore, the number of descriptive objects is not limited by ordinal numbers and can be one or more. For example, in "first device," the number of "devices" can be one or more. Furthermore, the objects modified by different prefixes can be the same or different. For example, if the object being described is "device", then "first device" and "second device" can be the same device or different devices, and their types can be the same or different. Similarly, if the object being described is "information", then "first information" and "second information" can be the same information or different information, and their content can be the same or different.

[0072] In some embodiments, “including A,” “containing A,” “for indicating A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

[0073] In some embodiments, terms such as "time / frequency" and "time-frequency domain" refer to the time domain and / or frequency domain.

[0074] In some embodiments, terms such as “in response to…”, “in response to determining…”, “in the case of…”, “when…”, “when…”, “if…”, etc. can be used interchangeably. These descriptions all refer to the device making a corresponding action under certain objective circumstances. They do not necessarily limit the time, nor do they require the device to make a judgment action when implementing it, nor do they mean that there must be other limitations.

[0075] In some embodiments, the terms “greater than,” “greater than or equal to,” “not less than,” “more than,” “more than or equal to,” “not less than,” “higher than,” “higher than or equal to,” “not lower than,” and “above” can be used interchangeably, as can the terms “less than,” “less than or equal to,” “not greater than,” “less than,” “less than or equal to,” “not more than,” “lower than,” “lower than or equal to,” “not higher than,” and “below”.

[0076] In some embodiments, devices, etc., may be interpreted as physical or virtual, and their names are not limited to those described in the embodiments. Terms such as “device,” “equipment,” “circuit,” “network element,” “network function,” “network device,” “function,” “node,” “unit,” “section,” “system,” “network,” “chip,” “chip system,” “entity,” and “subject” are interchangeable.

[0077] In some embodiments, "network" can be interpreted as devices included in a network (e.g., access network devices, core network devices, etc.).

[0078] In some embodiments, the terms "access network device (AN device)," "radio access network device (RAN device)," "base station (BS)," "radio base station," "fixed station," "node," "access point," "transmission point (TP)," "reception point (RP)," "transmission / reception point (TRP)," "panel," "antenna panel," "antenna array," "cell," "macro cell," "small cell," "femto cell," "pico cell," "sector," "cell group," "serving cell," "carrier," "component carrier," and "bandwidth part (BWP)" can be used interchangeably.

[0079] In some embodiments, the terms "terminal", "terminal device", "user equipment (UE)", "user terminal", "mobile station (MS)", "mobile terminal (MT)", "subscriber station", "mobile unit", "subscriber unit", "wireless unit", "remote unit", "mobile device", "wireless device", "wireless communication device", "remote device", "mobile subscriber station", "access terminal", "mobile terminal", "wireless terminal", "remote terminal", "handset", "user agent", "mobile client", and "client" can be used interchangeably.

[0080] In some embodiments, access network devices, core network devices, or network devices can be replaced by terminals. For example, embodiments of this disclosure can also be applied to structures where communication between access network devices, core network devices, or network devices and terminals is replaced by communication between multiple terminals (e.g., device-to-device (D2D), vehicle-to-everything (V2X), etc.). In this case, the structure can also be configured such that the terminal has all or part of the functions of the access network device. Furthermore, terms such as "uplink" and "downlink" can be replaced with terms corresponding to communication between terminals (e.g., "sidelink"). For example, uplink channel, downlink channel, etc., can be replaced with sidelink channel, and uplink link, downlink, etc., can be replaced with sidelink link.

[0081] In some embodiments, the terminal may be replaced by an access network device, a core network device, or a network device. In this case, the access network device, core network device, or network device may also be configured to have all or some of the functions of the terminal.

[0082] In some embodiments, the acquisition of data, information, etc., may comply with the laws and regulations of the country where the location is situated.

[0083] In some embodiments, data, information, etc., may be obtained with the user's consent.

[0084] Furthermore, each element, each row, or each column in the table of this disclosure can be implemented as an independent embodiment, and any combination of any element, any row, or any column can also be implemented as an independent embodiment.

[0085] Figure 1 is a schematic diagram of the architecture of a communication system according to an embodiment of the present disclosure. As shown in Figure 1, the communication system 100 may include at least one of a terminal and a network device; wherein, the network device may be used to schedule or control multiple TRPs, which may be used to perform CJT with the terminal. Optionally, the network device may include at least one of an access network device and a core network device.

[0086] In some embodiments, the terminal includes, but is not limited to, at least one of the following: mobile phone, wearable device, Internet of Things device, car with communication function, smart car, tablet, computer with wireless transceiver function, virtual reality (VR) terminal device, augmented reality (AR) terminal device, wireless terminal device in industrial control, wireless terminal device in self-driving, wireless terminal device in remote medical surgery, wireless terminal device in smart grid, wireless terminal device in transportation safety, wireless terminal device in smart city, and wireless terminal device in smart home.

[0087] In some embodiments, the access network device is, for example, a node or device that connects a terminal to a wireless network. The access network device may include at least one of the following in a 5G communication system: evolved Node B (eNB), next-generation evolved Node B (ng-eNB), next-generation Node B (gNB), Node B (NB), Home Node B (HNB), Home evolved Node B (HeNB), radio backhaul device, radio network controller (RNC), base station controller (BSC), base transceiver station (BTS), base band unit (BBU), mobile switching center, base station in a 6G communication system, open RAN, cloud RAN, base station in other communication systems, and access node in a Wi-Fi system, but is not limited thereto.

[0088] In some embodiments, the technical solutions of this disclosure can be applied to the Open RAN architecture. In this case, the interfaces between or within access network devices involved in the embodiments of this disclosure can be transformed into internal interfaces of Open RAN. The processes and information interactions between these internal interfaces can be implemented by software or programs.

[0089] In some embodiments, the access network device may be composed of a central unit (CU) and a distributed unit (DU). The CU may also be called a control unit. The CU-DU structure can separate the protocol layer of the access network device. Some protocol layer functions are centrally controlled by the CU, while the remaining part or all protocol layer functions are distributed in the DU and centrally controlled by the CU. However, this is not the only possibility.

[0090] In some embodiments, a core network device may be a single device comprising one or more network elements, or it may be multiple devices or a group of devices, each comprising all or part of the aforementioned one or more network elements. Network elements may be virtual or physical. The core network may include, for example, at least one of the following: Evolved Packet Core (EPC), 5G Core Network (5GCN), and Next Generation Core (NGC).

[0091] It is understood that the communication system described in this disclosure is for the purpose of more clearly illustrating the technical solutions of this disclosure, and does not constitute a limitation on the technical solutions proposed in this disclosure. As those skilled in the art will know, with the evolution of system architecture and the emergence of new business scenarios, the technical solutions proposed in this disclosure are also applicable to similar technical problems.

[0092] The following embodiments of this disclosure can be applied to the communication system 100 shown in FIG1, or to some of the main bodies, but are not limited thereto. The main bodies shown in FIG1 are illustrative. The communication system may include all or some of the main bodies in FIG1, or may include other main bodies outside of FIG1. ​​The number and form of each main body are arbitrary. The connection relationship between the main bodies is illustrative. The main bodies may not be connected or may be connected. The connection can be in any way, it can be a direct connection or an indirect connection, it can be a wired connection or a wireless connection.

[0093] The embodiments disclosed herein can be applied to Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th Generation mobile communication system (4G), 5th Generation mobile communication system (5G), 5G New Radio (NR), Future Radio Access (FRA), New-Radio Access Technology (RAT), New Radio (NR), New Radio Access (NX), Future Generation Radio Access (FX), Global System for Mobile communications (GSM), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), and IEEE 802.20, Ultra-Wideband (UWB), Bluetooth (a registered trademark), Public Land Mobile Network (PLMN) networks, Device-to-Device (D2D) systems, Machine-to-Machine (M2M) systems, Internet of Things (IoT) systems, Vehicle-to-Everything (V2X) systems, systems utilizing other resource selection methods, and next-generation systems built upon them, etc. Furthermore, multiple systems can be combined (e.g., a combination of LTE or LTE-A with 5G).

[0094] Optionally, when a terminal performs CJT with multiple TRPs, the network device typically needs to configure Channel-State Information Reference Signal (CSI-RS) resources corresponding to each of the multiple TRPs for the terminal. These CSI-RS resources are used to transmit CSI-RS. Different TRPs can transmit CSI-RS to the terminal through their antenna ports on the CSI-RS resources corresponding to their respective TRPs. By measuring the CSI-RS, the terminal can determine the Channel State Information (CSI) corresponding to each TRP and report the CSI to the network device. This allows the network device to adjust the scheduling of TRPs and perform beam management based on the CSI reported by the terminal.

[0095] In some embodiments, to further improve system capacity, a single TRP can deploy more antenna elements or transmit radio frequency units. Optionally, the number of antenna ports of a TRP can reach 48, 64, or 128. Optionally, when a terminal performs CJT with multiple TRPs, the number of antenna ports deployed in each TRP may not be equal. This type of CJT is called asymmetric CJT. For example, some of the N TRPs may have no more than 32 antenna ports, while others may have more than 32 antenna ports to meet the requirements of a larger system capacity. Alternatively, some of the N TRPs may shut down some antenna ports for energy-saving purposes, which also results in an unequal number of ports among the N TRPs.

[0096] Optionally, when the number of antenna ports of a TRP is different, the number and / or size of CSI-RS resources required for the TRP to send CSI-RS will also be different. Therefore, network devices need to configure CSI-RS resources specifically for TRPs with different numbers of antenna ports. However, current CSI-RS resource configuration methods are applicable to the following scenarios: multiple TRPs in a terminal CJT have the same number of antenna ports, or the number of antenna ports of multiple TRPs in a terminal CJT is no greater than 32. When the terminal is in an asymmetric CJT, such as when the number of antenna ports of multiple TRPs in a terminal CJT is different, or when the number of antenna ports of any TRP in a terminal CJT is greater than 32, there is currently no method for configuring CSI-RS resources specifically for different TRPs.

[0097] Figure 2 is an interactive schematic diagram of a configuration method according to an embodiment of the present disclosure. As shown in Figure 2, this embodiment of the disclosure relates to a configuration method for a communication system 100; the method includes:

[0098] Step 2101: The network device sends the first information to the terminal.

[0099] Optionally, in some embodiments, the terminal can perform CJT with N TRPs, where N≥2, and these N TRPs can be scheduled or controlled by a network device. Optionally, the TRPs can be included in the network device. In some embodiments, the network devices to which different TRPs belong can be the same or different, and the network device to which each TRP belongs can be the same or different from the network device that schedules or controls the N TRPs. For example, assuming network device #1 is used to schedule or control N TRPs, in some embodiments, the N TRPs can be TRPs in network device #1, or the N TRPs can be TRPs in network device #2. In this case, network device #1 is used to schedule or control the TRPs in network device #2. Alternatively, some of the N TRPs can be TRPs in network device #2, and another part can be TRPs in network device #1. In this case, network device #1 is used to schedule or control the TRPs in both network device #1 and network device #2.

[0100] Optionally, the number N of TRPs in the CJT can be configured by the network device or determined by the terminal and reported to the network device. Optionally, the N TRPs can satisfy at least one of the following: at least two TRPs with different numbers of antenna ports are included among the N TRPs; at least one TRP with a number of antenna ports is greater than a predetermined value. Optionally, the predetermined value can be 32. In some embodiments, the number of antenna ports of some TRPs in the N TRPs can be no greater than 32, while the number of antenna ports of other TRPs can be greater than 32. Alternatively, the number of antenna ports of different TRPs in the N TRPs can be the same, and all of them can be greater than 32. Optionally, the "number of antenna ports" mentioned above can refer to the number of antenna ports actually used by the TRP for CJT. For example, assuming that the antenna unit or transmitting radio frequency unit of the TRP has 64 antenna ports, if all 64 antenna ports are used for CJT with the terminal, then the number of antenna ports of the TRP is considered to be 64. If 32 antenna ports are turned off for energy saving purposes, then the number of antenna ports of the TRP is considered to be 32.

[0101] Optionally, the aforementioned first information can be used to configure the first signal resources corresponding to the N TRPs respectively. Optionally, the first signal resources can be used to determine the CSI. For example, the N TRPs can each transmit signals on their corresponding first signal resources, and the terminal can determine the CSI of each TRP by receiving and measuring the signals. For example, the first signal resource can be a CSI-RS resource, and the signal transmitted on the first signal resource can be, for example, a CSI-RS signal.

[0102] In some embodiments, when the first information configures the first signal resources corresponding to N TRPs respectively, the first information can be used to configure a first resource set, which can also be called a CSI-RS resource set. The first resource set can include multiple first signal resources. Optionally, all the first signal resources in the first resource set can be divided into N resource groups. Each resource group can include one or more first signal resources. Different resource groups correspond to different TRPs. For example, each resource group can correspond to one TRP. The first signal resources in the resource group can be used to determine the CSI of the TRP corresponding to the resource group. For example, the TRP can send a signal (such as CSI-RS) on the first signal resources in the resource group corresponding to the TRP. The terminal determines the CSI of the TRP by receiving and measuring the signal.

[0103] For example, in some embodiments, the first resource set of the first information configuration may contain 2 ≤ S first signal resources, where S is the total number of first signal resources in the first information configuration. The S first signal resources are divided into N resource groups, where S ≥ N, and the i-th resource group contains 1 ≤ C i If there is a first signal resource, then there is

[0104] In some embodiments, the aforementioned N resource groups can be divided by network devices. Optionally, the grouping method of the first signal resources in the first resource set can include a first method or a second method. In some embodiments, the first method can include: dividing the first signal resources in the first resource set into N resource groups according to the resource position arrangement order of the first signal resources in the first resource set; for example, the first signal resources can be sorted according to the resource order of the first signal resources in the first resource set, and the first to the K1th first signal resources can be divided into the first resource group, the K1+1th to the K1+K2th first signal resources can be divided into the second resource group, and so on, until the first signal resources are divided into the first resource group. The first signal resource to the last first signal resource is divided into the Nth resource group, where K1 is any value from 1, 2, 3...S, and K... i for For any value in K, i = 2, 3, 4, ..., N-1, different K i The values ​​can be the same or different. For example, K1 and K2 can be the same or different.

[0105] Optionally, the second method described above may include: dividing the first signal resources in the first resource set into N resource groups according to the order of their resource identifiers (IDs). For example, the first signal resources can be sorted according to the size of their resource IDs in the first resource set, and the first to the K1th first signal resources can be divided into the first resource group, the K1+1th to the K1+K2th first signal resources can be divided into the second resource group, and so on, until the K1+1th to the K1+K2th first signal resources are divided into the second resource group. The first signal resource is divided into the Nth resource group, from the first signal resource to the last first signal resource. Regarding K... i For a detailed introduction, please refer to the description above.

[0106] Optionally, in some embodiments, when the number of first signal resources in a resource group is greater than 1, the total number of ports corresponding to all first signal resources in the resource group is the same as the number of ports of the TRP corresponding to the resource group. Optionally, each first signal resource corresponds to a number of ports, which can be understood, for example, as the number of antenna ports required for signal transmission (e.g., CSI-RS transmission) on the first signal resource. Optionally, when the total number of ports corresponding to all first signal resources in a resource group is the same as the number of ports of the TRP corresponding to the resource group, it indicates that the first signal resources allocated to the TRP in this embodiment are adapted to the number of ports of the TRP, thereby enabling the TRP to accurately transmit signals on the first signal resources and ensuring the accuracy of subsequent CSI determination.

[0107] For example, assuming the TRP has 64 ports and a first signaling resource has 32 ports, then the resource group corresponding to this TRP can include two first signaling resources.

[0108] Optionally, in some embodiments, a first resource set may occupy M time-domain units, and a resource group within the first resource set may occupy X time-domain units. The value of X corresponding to different resource groups may be the same or different, where X and M are positive integers, and X ≤ M. Optionally, when M is greater than 1, the M time-domain units are consecutive; when X is greater than 1, the X time-domain units are consecutive. That is, in some embodiments, the first resource set occupies consecutive time-domain units, and each resource group also occupies consecutive time-domain units. These time-domain units may include at least one of symbols, slots, etc.

[0109] For example, the first resource set can occupy 1 slot or T consecutive slots, where 2 ≤ T. When 3 ≤ T, the first signal resource in a resource group can occupy 1 slot or 2 adjacent slots.

[0110] Optionally, in some embodiments, the first signal resource may correspond to a first parameter, which may include at least one of the following: a Quasi-Co Location (QCL) parameter, a first offset value (powerControlOffset), and a second offset value (powerControlOffsetSS). Optionally, the first offset value may be used to indicate the ratio between the energy on each resource element (RE) of the Physical Downlink Shared Channel (PDSCH) and the energy on each RE of the first signal resource. Optionally, the second offset value may be used to indicate the ratio between the energy on each RE of the first signal resource and the energy on each RE of the Synchronization Signal Block (SSB) or Physical Broadcast Channel (PBCH) block.

[0111] Optionally, different first signal resources in the same resource group may correspond to the same first parameter; the first parameters corresponding to different first signal resources in different resource groups may be configured independently by the network device. Optionally, the first parameters corresponding to different first signal resources in different resource groups may be the same or different.

[0112] For example, assume the first signal resource is a CSI-RS resource, with each CSI-RS resource corresponding to 32 ports. Also assume there are 4 TRPs used for CJT, with two TRPs each having 32 ports and the other two TRPs each having 64 ports. One CSI-RS resource needs to be configured for a TRP with 32 ports, and two CSI-RS resources need to be configured for a TRP with 64 ports. The network device can then configure a first resource set containing 6 CSI-RS resources, defined as CSI-RS resource 1, CSI-RS resource 2, ..., CSI-RS resource 6, according to the order of the CSI-RS resources configured by the network device. Each CSI-RS resource corresponds to 32 resource ports. These 6 CSI-RS resources can be divided into 4 resource groups, each corresponding to a TRP. Optionally, these 6 CSI-RS resources can be grouped according to the method shown in Table 1 below.

[0113] Table 1

[0114] As shown in Table 1, the six CSI-RS resources can be divided into Group 0, Group 1, Group 2, and Group 3. Group 0 and Group 1 each contain one CSI-RS resource, and the number of TRP ports corresponding to each group is no more than 32. Group 0 and Group 1 can each correspond to two TRPs with 32 TRP ports. Group 2 and Group 3 each contain two CSI-RS resources, and the number of TRP ports corresponding to each group is greater than 32, totaling 64 ports. These 64 ports are obtained by aggregating the ports of the two CSI-RS resources in each group. Group 2 and Group 3 can each correspond to two TRPs with 64 TRP ports.

[0115] Optionally, in other embodiments, each CSI-RS resource may correspond to a resource ID. When the network device groups the first signal resources in the first resource set, it may also sort the resource IDs of these CSI-RS resources and group them according to the method in Table 1.

[0116] Optionally, in some embodiments, the CSI-RS resources in the four groups shown in Table 1 above can occupy one slot or T consecutive slots, where T ≥ 2. When T = 3, the two CSI-RS resources in each group of Group 2 and Group 3 occupy only one slot or two adjacent slots.

[0117] Optionally, in some embodiments, the network device can configure the same QCL, powerControlOffset, and powerControlOffsetSS parameters for different first signal resources in the same resource group. Furthermore, the network device can independently configure the same or different QCL, powerControlOffset, and powerControlOffsetSS parameters for first signal resources in different resource groups. For example, the network device can configure the same QCL, powerControlOffset, and powerControlOffsetSS parameters for two CSI-RS resources in Group 2, and the same QCL, powerControlOffset, and powerControlOffsetSS parameters for two CSI-RS resources in Group 3. Additionally, the network device can independently configure the QCL, powerControlOffset, and powerControlOffsetSS parameters for Group 0, Group 1, Group 2, and Group 3, respectively, wherein the QCL, powerControlOffset, and powerControlOffsetSS parameters for the two CSI-RS resources in Group 2 can be the same as or different from the QCL, powerControlOffset, and powerControlOffsetSS parameters for the two CSI-RS resources in Group 3.

[0118] In other embodiments, when the first information configures the first signal resources corresponding to N TRPs respectively, the first information can be used to configure N second resource sets. The second resource sets can also be called CSI-RS resource sets. The second resource sets can include at least one first signal resource. Different second resource sets can correspond to different TRPs. The first signal resources in the second resource sets can be used to determine the CSI of the TRP corresponding to the second resource set. For example, the network side can use the first signal resources in the second resource set corresponding to the TRP to send a signal (such as CSI-RS). The terminal determines the CSI of the TRP by receiving and measuring the signal.

[0119] For example, in some embodiments, it is assumed that the i-th second resource set configured in the first information configuration contains 1≤D i If there are 1 first signal resources, and the total number of first signal resources in all second resource sets is S, then we have:

[0120] Optionally, when the number of first signal resources in the second resource set is greater than 1, the total number of ports corresponding to all first signal resources in the second resource set is the same as the number of ports in the TRP corresponding to the second resource set. Optionally, each first signal resource corresponds to a number of ports, which can be understood, for example, as the number of antenna ports required for signal transmission (e.g., CSI-RS transmission) on the first signal resource. Optionally, when the total number of ports corresponding to all first signal resources in the second resource set is the same as the number of ports in the TRP corresponding to the second resource set, it indicates that the first signal resources allocated to the TRP in this embodiment are compatible with the number of ports in the TRP, thereby enabling the TRP to accurately transmit signals on the first signal resources and ensuring the accuracy of subsequent CSI determination.

[0121] Optionally, in some embodiments, N second resource sets may occupy M time-domain units; one second resource set may occupy X time-domain units, and the X values ​​corresponding to different second resource sets may be the same or different; where X and M are positive integers, X≤M, when M>1, the M time-domain units are consecutive, and when X>1, the X time-domain units are consecutive. That is, in some embodiments, N second resource sets occupy consecutive time-domain units, and each second resource set also occupies consecutive time-domain units, which may include at least one of symbols, slots, etc.

[0122] For example, N second resource sets can occupy one slot or T consecutive slots, where 2 ≤ T. When 3 ≤ T, a second resource set can occupy 1 slot or two adjacent slots.

[0123] Optionally, in some embodiments, different first signal resources within the same second resource set may correspond to the same first parameter; the first parameters corresponding to different first signal resources in different second resource sets are configured independently by the network device. Optionally, the first parameters corresponding to different first signal resources in different second resource sets may be the same or different. For a detailed description of the first parameters, please refer to the above description. Optionally, the frequency domain density of the first signal resources in different second resource sets is the same, and the transmission bandwidth of the first signal resources in different second resource sets is the same.

[0124] For example, suppose the first signal resource is a CSI-RS resource, each CSI-RS resource has 32 ports, and suppose there are 4 TRPs used for CJT, with two TRPs having 16 ports each and the other two TRPs having 64 ports each. Then, one CSI-RS resource needs to be configured for each TRP with 16 ports, and two CSI-RS resources need to be configured for each TRP with 64 ports. Therefore, the network device can configure 4 second resource sets: the first and second second resource sets each contain one CSI-RS resource, and the third and fourth second resource sets each contain two CSI-RS resources. Each CSI-RS resource corresponds to 32 ports. Therefore, the first and second resource sets contain 32 ports for each CSI-RS resource, and the third and fourth resource sets contain 64 ports for each CSI-RS resource. Thus, the first and second resource sets can each correspond to two TRPs with 16 ports, and the third and fourth resource sets can each correspond to two TRPs with 64 ports. Furthermore, the frequency domain density of the CSI-RS resources in the four resource sets can be the same, and the transmission bandwidth of the CSI-RS resources in the four resource sets can be the same.

[0125] Optionally, in some embodiments, the CSI-RS resources of the four second resource sets can occupy 1 slot or T consecutive slots, where 2 ≤ T. When 3 ≤ T, the CSI-RS resources of the third and fourth second resource sets can occupy 1 slot or two adjacent slots.

[0126] Optionally, in some embodiments, the network device can configure the same QCL, powerControlOffset, and powerControlOffsetSS parameters for different first signal resources within the same second resource set. Furthermore, the network device can independently configure the same or different QCL, powerControlOffset, and powerControlOffsetSS parameters for first signal resources in different second resource sets. For example, the network device can configure the same QCL, powerControlOffset, and powerControlOffsetSS parameters for two CSI-RS resources in a third second resource set, and the same QCL, powerControlOffset, and powerControlOffsetSS parameters for two CSI-RS resources in a fourth second resource set. Additionally, the network device can independently configure the QCL, powerControlOffset, and powerControlOffsetSS parameters for the first, second, third, and fourth second resource sets, respectively, wherein the QCL, powerControlOffset, and powerControlOffsetSS parameters for the CSI-RS resources in the third second resource set can be the same as or different from the QCL, powerControlOffset, and powerControlOffsetSS parameters for the CSI-RS resources in the fourth second resource set.

[0127] Step 2102: The network device sends the second information to the terminal.

[0128] Optionally, the aforementioned second information can be sent via Radio Resource Control (RRC) signaling. The second information can be used to instruct the terminal to select Y resource groups from N resource groups, or the second information can be used to instruct the terminal to select Y second resource sets from N second resource sets, or the second information can be used to instruct the terminal to select A first signal resources from S first signal resources configured in the first information, where S is the total number of first signal resources configured in the first information, A and Y are positive integers, N≥Y, A≤S, and S≥N.

[0129] Optionally, the Y resource groups can be the resource groups used by the terminal when it actually performs CJT, the Y second resource sets can be the second resource sets used by the terminal when it actually performs CJT, and the A first signal resources can be the first signal resources used by the terminal when it actually performs CJT.

[0130] Optionally, the aforementioned Y resource groups can be resource groups corresponding to Y TRPs, the aforementioned Y second resource sets can be second resource sets corresponding to Y TRPs, and the aforementioned A first signal resources can be first signal resources corresponding to Y TRPs. Furthermore, in some embodiments, the aforementioned "the terminal selects Y resource groups from N resource groups, or the terminal selects Y second resource sets from N second resource sets, or the terminal selects A first signal resources from the S first signal resources configured in the first information" can also be understood as: the terminal selects Y TRPs from N TRPs, where these Y TRPs are the actual CJT TRPs of the terminal.

[0131] Therefore, it can be seen that the terminal does not passively perform CJT with N TRPs based on the resources configured in the first information. The terminal can flexibly select the Y resource groups, Y second resource sets, or A first signal resources to be used when the terminal actually performs CJT, and perform CJT with Y of the N TRPs through the selected Y resource groups, Y second resource sets, or A first signal resources, thereby improving the flexibility of CJT communication.

[0132] Step 2103: The terminal selects Y resource groups, Y second resource sets, or A first signal resources.

[0133] Optionally, in some embodiments, the terminal may randomly select Y resource groups from N resource groups, or the terminal may randomly select Y second resource groups from N second resource groups, or the terminal may randomly select A first signal resources from S first signal resources.

[0134] Optionally, in some embodiments, when the terminal selects Y resource groups, Y second resource sets, or A first signal resources, it can also select the most reasonable, efficient, and best-quality Y resource groups, Y second resource sets, or A first signal resources based on the terminal's current communication capabilities and / or communication status. Thus, when the terminal subsequently performs CJT with the TRP based on the Y resource groups, Y second resource sets, or A first signal resources, the accuracy of the terminal's CJT can be ensured.

[0135] Optionally, in some embodiments, when selecting Y resource groups, Y second resource sets, or A first signal resources, the terminal can also select the top Y resource groups, top Y second resource sets, or top A first signal resources with the best or relatively good channel state based on the CSI corresponding to each of the N resource groups, N second resource sets, or S first signal resources. For example, the terminal can first receive and measure the signals on the N resource groups, N second resource sets, or S first signal resources to calculate the CSI corresponding to each TRP. Then, the terminal can determine the Y resource groups, Y second resource sets, or A first signal resources corresponding to the top Y TRPs with the best channel state based on the CSI corresponding to each TRP. Thus, when the terminal subsequently performs CJT with the TRP based on the Y resource groups, Y second resource sets, or A first signal resources, the communication quality of the terminal's CJT can be ensured.

[0136] Step 2104: The terminal sends third information to the network device.

[0137] Optionally, the third information may be used to indicate any of the following: the Y resource groups selected by the terminal, the Y second resource sets selected by the terminal, or the A first signal resources selected by the terminal.

[0138] In some embodiments, the third information can be a first indication value, which can be used to indicate any of the following: the index of the Y resource groups selected by the terminal, the index of the Y second resource sets selected by the terminal, or the identifier of the A first signal resources selected by the terminal. Optionally, the first indication value can be, for example, a combination number. When the first indication value is different, it indicates different Y resource groups, different Y second resource sets, or different A first signal resources selected by the terminal. Optionally, taking Y resource groups as an example, the specific way the first indication value indicates the Y resource groups selected by the terminal is described. For example, when the first indication value is 001, it can indicate that the Y resource groups selected by the terminal are the first Y resource groups among all resource groups; when the first indication value is 011, it can indicate that the Y resource groups selected by the terminal are the last Y resource groups among all resource groups.

[0139] In some embodiments, the third information can be a bitmap. Optionally, in some embodiments, the bits in the bitmap can correspond to N resource groups respectively. Optionally, the bitmap can include N bits, and the i1th bit in the bitmap can correspond to the i1th resource group. For example, the i1th bit in the bitmap can correspond to the index of the i1th resource group, i1 = 1, 2, 3, ... N. For example, the least significant bit in the bitmap can correspond to the index of the first resource group, the most significant bit in the bitmap can correspond to the index of the last resource group, and so on. In some embodiments, the bit value carried by the bit can be used to indicate whether the resource group corresponding to the bit has been selected by the terminal. Optionally, when the bit carries a first value (such as 1), it indicates that the resource group corresponding to the bit has been selected by the terminal; when the bit carries a second value (such as 0), it indicates that the resource group corresponding to the bit has not been selected by the terminal.

[0140] For example, suppose the network device instructs the terminal to select 2 resource groups from N resource groups for CJT via RRC signaling. And suppose the resource groups are grouped as described in Table 1 above. Then the third information can be a 4-bit bitmap, where the first bit corresponds to Group 0 in Table 1, the second bit to Group 1, the third bit to Group 2, and the fourth bit to Group 3. Assuming that a bit carrying "1" indicates that the corresponding resource group was selected by the terminal for CJT, and a bit carrying "0" indicates that the corresponding resource group was not selected by the terminal for CJT, then the bitmap values ​​can be shown in Table 2 below:

[0141] Table 2

[0142] Referring to Table 2, the first and third bits in the bit diagram carry "1", and the second and fourth bits carry "0". This indicates that Group 0 and Group 2 are selected by the terminal for CJT, while Group 1 and Group 3 are not selected by the terminal for CJT. Therefore, the terminal selects the TRP corresponding to Group 0 and Group 2 for CJT.

[0143] In some embodiments, when the third information is a bitmap, the bits in the bitmap can correspond to N second resource sets respectively. Optionally, the bitmap can include N bits, and the i1th bit in the bitmap can correspond to the i1th second resource set. For example, the i1th bit in the bitmap can correspond to the index of the i1th second resource set, i1 = 1, 2, 3, ... N. For example, the least significant bit in the bitmap can correspond to the index of the first second resource set, the most significant bit in the bitmap can correspond to the index of the last second resource set, and so on. In some embodiments, the bit value carried by the bit can be used to indicate whether the second resource set corresponding to the bit is selected by the terminal. When the bit carries a first value (such as 1), it indicates that the second resource set corresponding to the bit is selected by the terminal; when the bit carries a second value (such as 0), it indicates that the second resource set corresponding to the bit is not selected by the terminal.

[0144] In some embodiments, when the third information is a bitmap, the bits in the bitmap can correspond to the first signal resources configured in the first information. Optionally, the bitmap can include S bits, where S≥N. The i2th bit in the bitmap can correspond to the i2th first signal resource configured in the first information. For example, the i2th bit in the bitmap can correspond to the identifier of the i2th first signal resource configured in the first information, i2 = 1, 2, 3, ..., S. For instance, the least significant bit in the bitmap can correspond to the identifier of the first first signal resource, the most significant bit in the bitmap can correspond to the identifier of the last first signal resource, and so on. In some embodiments, the bit value carried by the bit can be used to indicate whether the first signal resource corresponding to the bit is selected by the terminal. When the bit carries a first value, it indicates that the first signal resource corresponding to the bit is selected by the terminal; when the bit carries a second value, it indicates that the first signal resource corresponding to the bit is not selected by the terminal.

[0145] Optionally, after the terminal sends the third information to the network device, the terminal can perform CJT with the TRP corresponding to the Y resource groups, Y second resource sets, or A first signal resources indicated by the third information.

[0146] As can be seen from the above, the terminal will also indicate to the network device the Y resource groups, Y second resource sets, or A first signal resources selected by the terminal, so that the network device knows which resources the terminal uses during CJT, thereby facilitating the network device to schedule or control the TRPs corresponding to these resources to perform CJT with the terminal, ensuring the stability of CJT.

[0147] In summary, in the above embodiments, when at least two of the N TRPs transmitted by the terminal CJT include TRPs with different numbers of antenna ports, and / or when at least one of the N TRPs transmitted by the terminal CJT includes a TRP with a number of antenna ports greater than a predetermined value, the network device will send first information to the terminal. This first information can be used to configure the first signal resources corresponding to the N TRPs respectively. The first signal resources are used to determine CSI, and the first signal resources can be understood, for example, as CSI-RS resources. Therefore, this disclosure proposes a CSI-RS resource configuration method for scenarios involving "asymmetric CJT scenarios (i.e., at least two TRPs with different numbers of antenna ports among multiple TRPs of the terminal CJT)" and "the number of antenna ports of the TRPs of the CJT is greater than a predetermined value." This method ensures that when the terminal is in an "asymmetric CJT scenario" or a scenario where "the number of antenna ports of the TRPs of the CJT is greater than a predetermined value," the network device can accurately configure appropriate CSI-RS resources for each TRP. This guarantees that the terminal can accurately calculate the CSI corresponding to each TRP, ensuring the accuracy of CSI calculation in "asymmetric CJT scenarios" or scenarios where "the number of antenna ports of the TRPs of the CJT is greater than a predetermined value," thus ensuring communication quality. Furthermore, this method is applicable to the resource configuration of TRPs for N arbitrary antenna port CJTs, expanding the scope of application of the CSI-RS resource configuration method.

[0148] The configuration method involved in the embodiments of this disclosure may include at least one of steps 2101 to 2104. For example, step 2101 may be implemented as a standalone embodiment, and steps 2101+2103+2104 may be implemented as standalone embodiments, but are not limited thereto.

[0149] In some embodiments, the steps and their optional implementations in other embodiments described before or after this embodiment, as well as other related parts in the specification, can be referred to, and will not be repeated here.

[0150] Figure 3A is a flowchart illustrating a configuration method according to an embodiment of the present disclosure. As shown in Figure 3A, the present disclosure relates to a configuration method for a network device, the method comprising:

[0151] Step 3101: Send the first information to the terminal.

[0152] Optionally, the first information is used to configure the first signal resources corresponding to the N transmit / receive points (TRPs), where N is a positive integer and N≥2. The first signal resources are used to determine the channel state information (CSI). The N TRPs are used to perform coherent transmission (CJT) with the terminal, and the N TRPs satisfy at least one of the following: at least two of the N TRPs have different numbers of antenna ports, or at least one of the N TRPs has a number of antenna ports greater than a predetermined value.

[0153] Optionally, the first information is used to configure a first resource set, the first resource set includes a plurality of first signal resources, all the first signal resources in the first resource set are divided into N resource groups, each resource group includes one or more first signal resources, different resource groups correspond to different TRPs, and the first signal resources in the resource group are used to determine the CSI of the TRP corresponding to the resource group;

[0154] Wherein, when the number of first signal resources in the resource group is greater than 1, the total number of ports corresponding to all first signal resources in the resource group is the same as the number of ports of the TRP corresponding to the resource group.

[0155] Optionally, the first resource set occupies M time domain units; a resource group occupies X time domain units, and the X values ​​corresponding to different resource groups may be the same or different;

[0156] Where X and M are positive integers, X≤M, when M is greater than 1, the M time-domain units are continuous, and when X is greater than 1, the X time-domain units are continuous.

[0157] Optionally, the grouping method for the N resource groups includes either the first method or the second method;

[0158] The first method includes: dividing the first signal resources in the first resource set into N resource groups according to the resource position arrangement order of the first signal resources in the first resource set;

[0159] The second method includes: dividing the first signal resources in the first resource set into N resource groups according to the resource identifier IDs of the first signal resources in the first resource set.

[0160] Optionally, different first signal resources in the same resource group correspond to the same first parameter; the first parameters corresponding to different first signal resources in different resource groups are configured independently by the network device.

[0161] Optionally, the first information is used to configure N second resource sets, each second resource set including at least one first signal resource, different second resource sets corresponding to different TRPs, and the first signal resource in the second resource set is used to determine the CSI of the TRP corresponding to the second resource set;

[0162] Wherein, when the number of first signal resources in the second resource set is greater than 1, the total number of ports corresponding to all first signal resources in the second resource set is the same as the number of ports of the TRP corresponding to the second resource set.

[0163] Optionally, N second resource sets occupy M time domain units; one second resource set occupies X time domain units, and the X values ​​corresponding to different second resource sets may be the same or different;

[0164] Where X and M are positive integers, X≤M, when M is greater than 1, the M time-domain units are continuous, and when X is greater than 1, the X time-domain units are continuous.

[0165] Optionally, different first signal resources in the same second resource set correspond to the same first parameter; the first parameters corresponding to different first signal resources in different second resource sets are configured independently by the network device, the frequency domain density of the first signal resources in different second resource sets is the same, and the transmission bandwidth of the first signal resources in different second resource sets is the same.

[0166] Optionally, the first parameter includes at least one of the following:

[0167] Quasi-co-addressable QCL parameters;

[0168] A first offset value, which indicates the ratio between the energy on each resource element (RE) of the physical downlink shared channel (PDSCH) and the energy on each RE of the first signaling resource;

[0169] A second offset value is used to indicate the ratio between the energy per RE of the first signal resource and the energy per RE of the synchronization signal block SSB or physical broadcast channel PBCH.

[0170] Optionally, the method further includes:

[0171] The terminal is sent a second message, which instructs the terminal to select Y resource groups from N resource groups, or, the second message instructs the terminal to select Y second resource sets from N second resource sets, or, the second message instructs the terminal to select A first signal resources from the first signal resources configured in the first message; wherein, Y resource groups are the resource groups used by the terminal when performing CJT, Y second resource sets are the second resource sets used by the terminal when performing CJT, and A first signal resources are the first signal resources used by the terminal when performing CJT, A and Y are positive integers, N≥Y, A≤S, S is the total number of first signal resources configured in the first message, and S≥N;

[0172] The terminal receives third information sent by the terminal, the third information indicating any of the following: Y resource groups selected by the terminal, Y second resource sets selected by the terminal, and A first signal resources selected by the terminal.

[0173] Optionally, the third information is a first indication value. When the first indication value is different, the resource group identified by the third information is different, or the second resource set is different, or the first signal resource is different.

[0174] Optionally, the third information is a bitmap; wherein, the bits in the bitmap correspond to N resource groups respectively, and the bit value carried by the bit is used to indicate whether the resource group corresponding to the bit is selected by the terminal. When the bit carries a first value, it indicates that the resource group corresponding to the bit is selected by the terminal; when the bit carries a second value, it indicates that the resource group corresponding to the bit is not selected by the terminal; or

[0175] The bits in the bitmap correspond to N second resource sets respectively. The bit value carried by the bit is used to indicate whether the second resource set corresponding to the bit is selected by the terminal. When the bit carries a first value, it indicates that the second resource set corresponding to the bit is selected by the terminal; when the bit carries a second value, it indicates that the second resource set corresponding to the bit is not selected by the terminal. Or

[0176] The bits in the bitmap correspond to the first signal resources configured by the first information. The bit value carried by the bit is used to indicate whether the first signal resource corresponding to the bit is selected by the terminal. When the bit carries a first value, it indicates that the first signal resource corresponding to the bit is selected by the terminal. When the bit carries a second value, it indicates that the first signal resource corresponding to the bit is not selected by the terminal.

[0177] Optionally, the bits in the bit map correspond to N resource groups respectively, including: the i1th bit in the bit map corresponds to the i1th resource group;

[0178] The bits in the bitmap correspond to N second resource sets respectively, including: the i1th bit in the bitmap corresponds to the i1th second resource set;

[0179] The bits in the bitmap correspond to the first signal resources configured by the first information, including: the i2th bit in the bitmap corresponds to the i2th first signal resource configured by the first information;

[0180] Where i1 and i2 are positive integers, i1 = 1, 2, 3, ..., N; i2 = 1, 2, 3, ..., S.

[0181] For a detailed description of step 3101, please refer to the above embodiment.

[0182] In some embodiments, the steps and their optional implementations in other embodiments described before or after this embodiment, as well as other related parts in the specification, can be referred to, and will not be repeated here.

[0183] Figure 3B is a flowchart illustrating a configuration method according to an embodiment of the present disclosure. As shown in Figure 3B, the present disclosure relates to a configuration method for a terminal, the method comprising:

[0184] Step 3201: Receive the first information sent by the network device.

[0185] Optionally, the first information is used to configure the first signal resources corresponding to the N transmit / receive points (TRPs), where N is a positive integer and N≥2. The first signal resources are used to determine the channel state information (CSI). The N TRPs are used to perform coherent transmission (CJT) with the terminal, and the N TRPs satisfy at least one of the following: at least two of the N TRPs have different numbers of antenna ports, or at least one of the N TRPs has a number of antenna ports greater than a predetermined value.

[0186] Optionally, the first information is used to configure a first resource set, the first resource set includes a plurality of first signal resources, all the first signal resources in the first resource set are divided into N resource groups, each resource group includes one or more first signal resources, different resource groups correspond to different TRPs, and the first signal resources in the resource group are used to determine the CSI of the TRP corresponding to the resource group;

[0187] Wherein, when the number of first signal resources in the resource group is greater than 1, the total number of ports corresponding to all first signal resources in the resource group is the same as the number of ports of the TRP corresponding to the resource group.

[0188] Optionally, the first resource set occupies M time domain units; a resource group occupies X time domain units, and the X values ​​corresponding to different resource groups may be the same or different;

[0189] Where X and M are positive integers, X≤M, when M is greater than 1, the M time-domain units are continuous, and when X is greater than 1, the X time-domain units are continuous.

[0190] Optionally, the grouping method for the N resource groups includes either the first method or the second method;

[0191] The first method includes: dividing the first signal resources in the first resource set into N resource groups according to the resource position arrangement order of the first signal resources in the first resource set;

[0192] The second method includes: dividing the first signal resources in the first resource set into N resource groups according to the resource identifier IDs of the first signal resources in the first resource set.

[0193] Optionally, different first signal resources in the same resource group correspond to the same first parameter; the first parameters corresponding to different first signal resources in different resource groups are configured independently by the network device.

[0194] Optionally, the first information is used to configure N second resource sets, each second resource set including at least one first signal resource, different second resource sets corresponding to different TRPs, and the first signal resource in the second resource set is used to determine the CSI of the TRP corresponding to the second resource set;

[0195] Wherein, when the number of first signal resources in the second resource set is greater than 1, the total number of ports corresponding to all first signal resources in the second resource set is the same as the number of ports of the TRP corresponding to the second resource set.

[0196] Optionally, N second resource sets occupy M time domain units; one second resource set occupies X time domain units, and the X values ​​corresponding to different second resource sets may be the same or different;

[0197] Where X and M are positive integers, X≤M, when M is greater than 1, the M time-domain units are continuous, and when X is greater than 1, the X time-domain units are continuous.

[0198] Optionally, different first signal resources in the same second resource set correspond to the same first parameter; the first parameters corresponding to different first signal resources in different second resource sets are configured independently by the network device, the frequency domain density of the first signal resources in different second resource sets is the same, and the transmission bandwidth of the first signal resources in different second resource sets is the same.

[0199] Optionally, the first parameter includes at least one of the following:

[0200] Quasi-co-addressable QCL parameters;

[0201] A first offset value, which indicates the ratio between the energy on each resource element (RE) of the physical downlink shared channel (PDSCH) and the energy on each RE of the first signaling resource;

[0202] A second offset value is used to indicate the ratio between the energy per RE of the first signal resource and the energy per RE of the synchronization signal block SSB or physical broadcast channel PBCH.

[0203] Optionally, the method further includes:

[0204] The terminal receives second information sent by the network device. This second information instructs the terminal to select Y resource groups from N resource groups, or to select Y second resource sets from N second resource sets, or to select A first signal resources from the first signal resources configured in the first information. Wherein, Y resource groups are the resource groups used by the terminal during CJT, Y second resource sets are the second resource sets used by the terminal during CJT, and A first signal resources are the first signal resources used by the terminal during CJT. A and Y are positive integers, N≥Y, A≤S, S is the total number of first signal resources configured in the first information, and S≥N.

[0205] Send a third message to the network device, the third message indicating any of the following: Y resource groups selected by the terminal, Y second resource sets selected by the terminal, or A first signal resources selected by the terminal.

[0206] Optionally, the third information is a first indication value. When the first indication value is different, the resource group identified by the third information is different, or the second resource set is different, or the first signal resource is different.

[0207] Optionally, the third information is a bitmap; wherein, the bits in the bitmap correspond to N resource groups respectively, and the bit value carried by the bit is used to indicate whether the resource group corresponding to the bit is selected by the terminal. When the bit carries a first value, it indicates that the resource group corresponding to the bit is selected by the terminal; when the bit carries a second value, it indicates that the resource group corresponding to the bit is not selected by the terminal; or

[0208] The bits in the bitmap correspond to N second resource sets respectively. The bit value carried by the bit is used to indicate whether the second resource set corresponding to the bit is selected by the terminal. When the bit carries a first value, it indicates that the second resource set corresponding to the bit is selected by the terminal; when the bit carries a second value, it indicates that the second resource set corresponding to the bit is not selected by the terminal. Or

[0209] The bits in the bitmap correspond to the first signal resources configured by the first information. The bit value carried by the bit is used to indicate whether the first signal resource corresponding to the bit is selected by the terminal. When the bit carries a first value, it indicates that the first signal resource corresponding to the bit is selected by the terminal. When the bit carries a second value, it indicates that the first signal resource corresponding to the bit is not selected by the terminal.

[0210] Optionally, the bits in the bit map correspond to N resource groups respectively, including: the i1th bit in the bit map corresponds to the i1th resource group;

[0211] The bits in the bitmap correspond to N second resource sets respectively, including: the i1th bit in the bitmap corresponds to the i1th second resource set;

[0212] The bits in the bitmap correspond to the first signal resources configured by the first information, including: the i2th bit in the bitmap corresponds to the i2th first signal resource configured by the first information;

[0213] Where i1 and i2 are positive integers, i1 = 1, 2, 3, ..., N; i2 = 1, 2, 3, ..., S.

[0214] For a detailed description of step 3201, please refer to the above embodiment.

[0215] In some embodiments, the steps and their optional implementations in other embodiments described before or after this embodiment, as well as other related parts in the specification, can be referred to, and will not be repeated here.

[0216] The following is an exemplary description of the above method.

[0217] To improve system spectral efficiency or edge coverage, multi-point cooperative transmission is an important technology for achieving this goal. The Rel-18 standardization phase proposed N... TRP Each TRP provides service to the user via Coherent Cooperative Transport (CJT), and a Rel-18 Type IICJT codebook is designed to implement CSI feedback for multiple TRPs. To enable the UE to measure downlink channel information from each TRP to the UE to calculate CSI, the NW side configures N... TRP There are N CSI-RS resources, each resource corresponding to a collaborative TRP. TRP Each resource comes from a CSI-RS resource set.

[0218] To further enhance system capacity, a single TRP can deploy more antenna elements or transmit RF units. The Rel-19 standardization phase already supports up to P = 48, 64, or 128 transmit ports on the NW side, and enhances the traditional Type I and Type II codebooks with larger port configurations. P ports are obtained by aggregating Ks = 2, 3, or 4 CSI-RS resources, each with the same number of ports and originating from a single CSI-RS resource set.

[0219] For cooperative coherent joint transmission across multiple TPRs, the number of antenna ports deployed on each TPR may not be equal. This type of cooperative coherent joint transmission is called asymmetric CJT. For example, N TRP Some collaborative TRPs have no more than 32 antenna ports, while others have more than 32 antenna ports to meet larger system capacity requirements. Alternatively, N TRP In a cooperative TRP, some TRPs may shut down some antenna ports for energy saving purposes, which also leads to N TRP The number of ports for each collaborative TRP varies.

[0220] For cooperative transmission across multiple Transmission Points (TRPs), if the number of antenna ports deployed on each TRP is unequal, the current CSI-RS resource configuration method cannot achieve channel measurement for each TRP and accurately calculate the CSI of the cooperative TRPs. How to configure CSI-RS channel measurement resources to obtain the CSI of cooperative TRPs with different antenna ports is a problem to be solved.

[0221] The channel measurement resource configuration method proposed in this disclosure can be applied to related transmissions in cooperative TRPs with different numbers of ports.

[0222] N TRP CSI-RS resource configuration method for each collaborative TRP:

[0223] Alt1:NW configures a CSI-RS resource set containing 2 ≤ N CSI-RS resources, which are then divided into N... TRP There are 1 ≤ K resource groups, each resource group contains 1 ≤ K i For each CSI-RS resource, there are Each resource group corresponds to a TRP for downlink cooperative transmission. When the number of resources contained in a resource group is greater than 1, the total number of ports P obtained by aggregating all CSI-RS resources contained in each resource group is used as the number of ports of the corresponding TRP.

[0224] Location of the configured CSI-RS resource in the time slot

[0225] Resources within each resource group are allocated within one slot or two consecutive slots.

[0226] N CSI-RS resources are configured in one or T consecutive slots, where 2 ≤ T. When 3 ≤ T, resources within a group are configured in only one slot or two adjacent slots.

[0227] Method for determining CSI-RS resources included in a resource group

[0228] Opt1: Sort the CSI-RS resources configured within the CSI-RS resource set in order. The first resource group contains the first to the K1th CSI-RS resources; the second resource group contains the K1+1th to the K1+K2th CSI-RS resources; and so on, up to the Kth... NTRP The resource group contains the first One to the Nth CSI-RS resource.

[0229] Opt2: Sort according to the size of the CSI-RS resource IDs configured within the CSI-RS resource set. The resources contained in each sorted CSI-RS resource group are the same as those described in Opt1.

[0230] Other constraints for configuring CSI-RS resources

[0231] For K within a resource group i Each CSI-RS resource has the same QCL, powerControlOffset, and powerControlOffsetSS parameter configuration.

[0232] CSI-RS resources for different resource groups are configured independently by NW. The QCL, powerControlOffset, and powerControlOffsetSS parameters for configuring CSI-RS resources for different resource groups can be the same or different.

[0233] Alt2: NW Configuration N TRP There are 1 ≤ K CSI-RS resource sets, and each CSI-RS resource set contains 1 ≤ K i There are N CSI-RS resources. The total number of CSI-RS resources in all resource sets is N, i.e. Each resource set corresponds to a TRP for cooperative transmission. When the number of resources contained in a resource set is greater than 1, the total number of ports P obtained by aggregating all the resources contained in each resource set is used as the number of ports of the corresponding TRP.

[0234] Location of each resource in a time slot

[0235] Each resource within a resource set is configured in one slot or two consecutive slots.

[0236] N CSI-RS resources are configured in one or T consecutive slots, where 2 ≤ T. When 3 ≤ T, resources in a resource set are only in one slot or two adjacent slots.

[0237] Other constraints for configuring CSI-RS resources

[0238] For a resource set K i Each CSI-RS resource has the same QCL, powerControlOffset, and powerControlOffsetSS parameter configuration.

[0239] CSI-RS resources for different resource sets are configured independently by NW. The QCL, powerControlOffset, and powerControlOffsetSS parameters for configuring CSI-RS resources for different resource sets can be the same or different.

[0240] CSI-RS resource frequency density and transmission bandwidth are the same for different resource sets.

[0241] Optionally: the above N TRP Each resource group or resource set corresponds to N TRP Each coherently cooperating transmission TRP. Therefore, NW can be configured with N TRP A resource group or resource set represents the resource to be used for N TRP Each TRP performs coherent cooperative transmission. Optionally, the NW can also instruct the UE to select N via signaling. TRP N TRPs are selected for CJT, where N <N TRPThe UE indicates the selected cooperative TRP via a combination number or a bitmap. If indicated by a combination number, the combination number indicates the index or sorted resource ID of the resource group or resource set. If indicated by a bitmap, each bit in the bitmap corresponds to the index or sorted resource ID of a resource or resource set.

[0242] Example 1 (Alt1):

[0243] Assume N is the number of TRPs used in CJT. TRP The total number of TRPs is 4, with each of the two TRPs having 32 ports and each of the other two TRPs having 64 ports. For TRPs with no more than 32 ports, one CSI-RS resource needs to be configured; for TRPs with more than 32 ports, Ks = 2 CSI-RS resources are configured. Therefore, the NW configures a CSI-RS resource set containing 6 CSI-RS resources. CSI-RS resource 1, CSI-RS resource 2, ..., CSI-RS resource 6 are defined according to the order in which the CSI-RS resources are configured on the NW side, with each resource having 32 ports. These 6 resources can be grouped as shown in Table 1 below.

[0244] Table 1: Methods for grouping multiple resources

[0245] Table 1 shows the six resource allocation methods N TRP The method consists of 4 groups. Group 0 and Group 1 each contain one CSI-RS resource, with no more than 32 TRP ports corresponding to each group; Group 2 and Group 3 each contain two CSI-RS resources, with more than 32 TRP ports corresponding to each group, i.e., 64 ports. These 64 ports are obtained by aggregating the ports from the two resources.

[0246] Each CSI-RS resource has a corresponding resource ID. Therefore, these CSI-RS resource IDs can also be sorted and grouped according to the method in Table 1.

[0247] Two resources in Group 2 and Group 3 can be transmitted within one slot or two consecutive slots. Resources in these four groups can be configured to be transmitted within one slot, or over T = 2 or 3 slots. When T = 3, two resources in Group 2 and Group 3 are transmitted only within one slot or two adjacent slots.

[0248] Configure two resources contained in Group 2 or Group 3 with the same QCL, powerControlOffset, and powerControlOffsetSS parameters. However, resources configured in Group 0, Group 1, Group 2, and Group 3 can have different QCL, powerControlOffset, and powerControlOffsetSS parameters.

[0249] Example 2 (Alt2):

[0250] Assume N is the number of TRPs used in CJT. TRP The total number of ports is 4, with each of the two TRPs having 16 ports and each of the other two TRPs having 64 ports. For TRPs with no more than 32 ports, one CSI-RS resource needs to be configured; for TRPs with more than 32 ports, Ks = 2 CSI-RS resources need to be configured. NW configuration N TRP There are four resource sets. The first and second resource sets each contain one CSI-RS resource, with each CSI-RS resource having 32 ports. The third and fourth resource sets each contain two CSI-RS resources, each with 32 ports. Therefore, the NW is configured with a total of six CSI-RS resources, and the number of resource ports in the first / second resource sets is different from that in the third / fourth resource sets. The frequency domain density and transmission bandwidth of the CSI-RS resources in these four resource sets configured by the NW can be the same.

[0251] Similar to Example 1, the two resources contained in the third and fourth resource sets are in one slot or two consecutive slots. Resources from all four resource sets can be transmitted in consecutive slots of 1 ≤ T. When 3 ≤ T, the resources of the third and fourth resource sets are only in one slot or two adjacent slots. Other constraints for each resource are similar to those in Example 1 above and will not be repeated here.

[0252] If the parameters configured by NW via RRC signaling indicate that the UE can select N... TRP =4 TRPs select N=2 TRPs for CJT. The UE indicates the selected cooperating TRPs through the combination number or bitmap. If indicated by bitmap, each bit in the bitmap corresponds to an index of a resource or resource set, as shown in Table 2 below.

[0253] Table 2: bitmap indicates the TRP selected by the UE for CJT

[0254] In Table 2, a value of 1 indicates that the CSI-RS resource set group is selected by the UE; otherwise, it is not selected. The table shows that the first and third resource sets are selected, meaning that the two TRPs corresponding to the first and third resource sets are used for CJT.

[0255] Optionally, the CSI-RS resource allocation method based on this disclosure can be flexibly adapted to N TRP Cooperative TRPs deployed at any antenna port are used to obtain the CSI of each TRP during asymmetric CJT.

[0256] This disclosure also proposes an apparatus (also referred to as a communication device, etc.) for implementing any of the above methods. For example, an apparatus is proposed that includes units or modules for implementing the steps performed by the terminal in any of the above methods. Furthermore, another apparatus is proposed that includes units or modules for implementing the steps performed by a network device (e.g., an access network device, a core network functional node, a core network device, etc.) in any of the above methods.

[0257] It should be understood that the division of units or modules in the above device is only a logical functional division. In actual implementation, they can be fully or partially integrated into a single physical entity, or they can be physically separated. Furthermore, the units or modules in the device can be implemented by a processor calling software: for example, the device includes a processor connected to a memory containing instructions. The processor calls the instructions stored in the memory to implement any of the above methods or to implement the functions of the units or modules in the above device. The processor can be, for example, a general-purpose processor, such as a Central Processing Unit (CPU) or a microprocessor, and the memory can be internal or external to the device. Alternatively, the units or modules in the device can be implemented in the form of hardware circuits. The functionality of some or all of the units or modules can be achieved through the design of these hardware circuits, which can be understood as one or more processors. For example, in one implementation, the hardware circuit is an application-specific integrated circuit (ASIC). The functionality of some or all of the units or modules is achieved through the design of the logical relationships between the components within the circuit. In another implementation, the hardware circuit can be implemented using a programmable logic device (PLD). Taking a field-programmable gate array (FPGA) as an example, it can include a large number of logic gates. The connection relationships between the logic gates are configured through configuration files, thereby achieving the functionality of some or all of the units or modules. All units or modules of the above device can be implemented entirely through processor-called software, entirely through hardware circuits, or partially through processor-called software with the remaining parts implemented through hardware circuits.

[0258] In this embodiment, the processor is a circuit with signal processing capabilities. In one implementation, the processor can be a circuit with instruction read and execute capabilities, such as a Central Processing Unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), or a digital signal processor (DSP). In another implementation, the processor can implement certain functions through the logical relationships of hardware circuits. The logical relationships of the aforementioned hardware circuits are fixed or reconfigurable. For example, the processor is a hardware circuit implemented using an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In a reconfigurable hardware circuit, the process of the processor loading a configuration document and configuring the hardware circuit can be understood as the process of the processor loading instructions to implement the functions of some or all of the above units or modules. Furthermore, it can also be a hardware circuit designed for artificial intelligence, which can be understood as an ASIC, such as a Neural Network Processing Unit (NPU), a Tensor Processing Unit (TPU), or a Deep Learning Processing Unit (DPU).

[0259] Figure 4A is a schematic diagram of the network device proposed in an embodiment of this disclosure. The network device is used to perform any of the above methods. In some embodiments, as shown in Figure 4A, the network device may include at least one of a transceiver module, a processing module, etc. The transceiver module is used to send first information to the terminal, the first information being used to configure first signal resources corresponding to N transmit / receive points (TRPs), where N is a positive integer and N≥2, and the first signal resources are used to determine channel state information (CSI); wherein, the N TRPs are used to perform coherent transmission (CJT) with the terminal, and the N TRPs satisfy at least one of the following: at least two of the N TRPs have different numbers of antenna ports, and at least one of the N TRPs has a number of antenna ports greater than a predetermined value.

[0260] Optionally, the transceiver module is used to perform at least one of the communication steps such as sending and / or receiving performed by the network device in any of the above methods, which will not be elaborated here. Optionally, the processing module is used to perform at least one of the other steps performed by the network device in any of the above methods, which will not be elaborated here.

[0261] Optionally, the first information is used to configure a first resource set, the first resource set includes a plurality of first signal resources, all the first signal resources in the first resource set are divided into N resource groups, each resource group includes one or more first signal resources, different resource groups correspond to different TRPs, and the first signal resources in the resource group are used to determine the CSI of the TRP corresponding to the resource group;

[0262] Wherein, when the number of first signal resources in the resource group is greater than 1, the total number of ports corresponding to all first signal resources in the resource group is the same as the number of ports of the TRP corresponding to the resource group.

[0263] Optionally, the first resource set occupies M time domain units; a resource group occupies X time domain units, and the X values ​​corresponding to different resource groups may be the same or different;

[0264] Where X and M are positive integers, X≤M, when M is greater than 1, the M time-domain units are continuous, and when X is greater than 1, the X time-domain units are continuous.

[0265] Optionally, the grouping method for the N resource groups includes either the first method or the second method;

[0266] The first method includes: dividing the first signal resources in the first resource set into N resource groups according to the resource position arrangement order of the first signal resources in the first resource set;

[0267] The second method includes: dividing the first signal resources in the first resource set into N resource groups according to the resource identifier IDs of the first signal resources in the first resource set.

[0268] Optionally, different first signal resources in the same resource group correspond to the same first parameter; the first parameters corresponding to different first signal resources in different resource groups are configured independently by the network device.

[0269] Optionally, the first information is used to configure N second resource sets, each second resource set including at least one first signal resource, different second resource sets corresponding to different TRPs, and the first signal resource in the second resource set is used to determine the CSI of the TRP corresponding to the second resource set;

[0270] Wherein, when the number of first signal resources in the second resource set is greater than 1, the total number of ports corresponding to all first signal resources in the second resource set is the same as the number of ports of the TRP corresponding to the second resource set.

[0271] Optionally, N second resource sets occupy M time domain units; one second resource set occupies X time domain units, and the X values ​​corresponding to different second resource sets may be the same or different;

[0272] Where X and M are positive integers, X≤M, when M is greater than 1, the M time-domain units are continuous, and when X is greater than 1, the X time-domain units are continuous.

[0273] Optionally, different first signal resources in the same second resource set correspond to the same first parameter; the first parameters corresponding to different first signal resources in different second resource sets are configured independently by the network device, the frequency domain density of the first signal resources in different second resource sets is the same, and the transmission bandwidth of the first signal resources in different second resource sets is the same.

[0274] Optionally, the first parameter includes at least one of the following:

[0275] Quasi-co-addressable QCL parameters;

[0276] A first offset value, which indicates the ratio between the energy on each resource element (RE) of the physical downlink shared channel (PDSCH) and the energy on each RE of the first signaling resource;

[0277] A second offset value is used to indicate the ratio between the energy per RE of the first signal resource and the energy per RE of the synchronization signal block SSB or physical broadcast channel PBCH.

[0278] Optionally, the method further includes:

[0279] The terminal is sent a second message, which instructs the terminal to select Y resource groups from N resource groups, or, the second message instructs the terminal to select Y second resource sets from N second resource sets, or, the second message instructs the terminal to select A first signal resources from the first signal resources configured in the first message; wherein, Y resource groups are the resource groups used by the terminal when performing CJT, Y second resource sets are the second resource sets used by the terminal when performing CJT, and A first signal resources are the first signal resources used by the terminal when performing CJT, A and Y are positive integers, N≥Y, A≤S, S is the total number of first signal resources configured in the first message, and S≥N;

[0280] The terminal receives third information sent by the terminal, the third information indicating any of the following: Y resource groups selected by the terminal, Y second resource sets selected by the terminal, and A first signal resources selected by the terminal.

[0281] Optionally, the third information is a first indication value. When the first indication value is different, the resource group identified by the third information is different, or the second resource set is different, or the first signal resource is different.

[0282] Optionally, the third information is a bitmap; wherein, the bits in the bitmap correspond to N resource groups respectively, and the bit value carried by the bit is used to indicate whether the resource group corresponding to the bit is selected by the terminal. When the bit carries a first value, it indicates that the resource group corresponding to the bit is selected by the terminal; when the bit carries a second value, it indicates that the resource group corresponding to the bit is not selected by the terminal; or

[0283] The bits in the bitmap correspond to N second resource sets respectively. The bit value carried by the bit is used to indicate whether the second resource set corresponding to the bit is selected by the terminal. When the bit carries a first value, it indicates that the second resource set corresponding to the bit is selected by the terminal; when the bit carries a second value, it indicates that the second resource set corresponding to the bit is not selected by the terminal. Or

[0284] The bits in the bitmap correspond to the first signal resources configured by the first information. The bit value carried by the bit is used to indicate whether the first signal resource corresponding to the bit is selected by the terminal. When the bit carries a first value, it indicates that the first signal resource corresponding to the bit is selected by the terminal. When the bit carries a second value, it indicates that the first signal resource corresponding to the bit is not selected by the terminal.

[0285] Optionally, the bits in the bit map correspond to N resource groups respectively, including: the i1th bit in the bit map corresponds to the i1th resource group;

[0286] The bits in the bitmap correspond to N second resource sets respectively, including: the i1th bit in the bitmap corresponds to the i1th second resource set;

[0287] The bits in the bitmap correspond to the first signal resources configured by the first information, including: the i2th bit in the bitmap corresponds to the i2th first signal resource configured by the first information;

[0288] Where i1 and i2 are positive integers, i1 = 1, 2, 3, ..., N; i2 = 1, 2, 3, ..., S.

[0289] Figure 4B is a schematic diagram of the terminal structure proposed in an embodiment of this disclosure. The terminal is used to execute any of the above methods. In some embodiments, as shown in Figure 4B, the terminal may include at least one of a transceiver module, a processing module, etc. The transceiver module is used to receive first information sent by a network device, the first information being used to configure first signal resources corresponding to N transmit / receive points (TRPs), where N is a positive integer and N≥2, and the first signal resources are used to determine channel state information (CSI); wherein, the N TRPs are used to perform coherent transmission (CJT) with the terminal, and the N TRPs satisfy at least one of the following: at least two of the N TRPs have different numbers of antenna ports, and at least one of the N TRPs has a number of antenna ports greater than a predetermined value.

[0290] Optionally, the transceiver module described above is used to perform at least one of the communication steps such as sending and / or receiving performed by the terminal in any of the above methods, which will not be elaborated here. Optionally, the processing module described above is used to perform at least one of the other steps performed by the terminal in any of the above methods, which will not be elaborated here.

[0291] Optionally, the first information is used to configure a first resource set, the first resource set includes a plurality of first signal resources, all the first signal resources in the first resource set are divided into N resource groups, each resource group includes one or more first signal resources, different resource groups correspond to different TRPs, and the first signal resources in the resource group are used to determine the CSI of the TRP corresponding to the resource group;

[0292] Wherein, when the number of first signal resources in the resource group is greater than 1, the total number of ports corresponding to all first signal resources in the resource group is the same as the number of ports of the TRP corresponding to the resource group.

[0293] Optionally, the first resource set occupies M time domain units; a resource group occupies X time domain units, and the X values ​​corresponding to different resource groups may be the same or different;

[0294] Where X and M are positive integers, X≤M, when M is greater than 1, the M time-domain units are continuous, and when X is greater than 1, the X time-domain units are continuous.

[0295] Optionally, the grouping method for the N resource groups includes either the first method or the second method;

[0296] The first method includes: dividing the first signal resources in the first resource set into N resource groups according to the resource position arrangement order of the first signal resources in the first resource set;

[0297] The second method includes: dividing the first signal resources in the first resource set into N resource groups according to the resource identifier IDs of the first signal resources in the first resource set.

[0298] Optionally, different first signal resources in the same resource group correspond to the same first parameter; the first parameters corresponding to different first signal resources in different resource groups are configured independently by the network device.

[0299] Optionally, the first information is used to configure N second resource sets, each second resource set including at least one first signal resource, different second resource sets corresponding to different TRPs, and the first signal resource in the second resource set is used to determine the CSI of the TRP corresponding to the second resource set;

[0300] Wherein, when the number of first signal resources in the second resource set is greater than 1, the total number of ports corresponding to all first signal resources in the second resource set is the same as the number of ports of the TRP corresponding to the second resource set.

[0301] Optionally, N second resource sets occupy M time domain units; one second resource set occupies X time domain units, and the X values ​​corresponding to different second resource sets may be the same or different;

[0302] Where X and M are positive integers, X≤M, when M is greater than 1, the M time-domain units are continuous, and when X is greater than 1, the X time-domain units are continuous.

[0303] Optionally, different first signal resources in the same second resource set correspond to the same first parameter; the first parameters corresponding to different first signal resources in different second resource sets are configured independently by the network device, the frequency domain density of the first signal resources in different second resource sets is the same, and the transmission bandwidth of the first signal resources in different second resource sets is the same.

[0304] Optionally, the first parameter includes at least one of the following:

[0305] Quasi-co-addressable QCL parameters;

[0306] A first offset value, which indicates the ratio between the energy on each resource element (RE) of the physical downlink shared channel (PDSCH) and the energy on each RE of the first signaling resource;

[0307] A second offset value is used to indicate the ratio between the energy per RE of the first signal resource and the energy per RE of the synchronization signal block SSB or physical broadcast channel PBCH.

[0308] Optionally, the method further includes:

[0309] The terminal receives second information sent by the network device. This second information instructs the terminal to select Y resource groups from N resource groups, or to select Y second resource sets from N second resource sets, or to select A first signal resources from the first signal resources configured in the first information. Wherein, Y resource groups are the resource groups used by the terminal during CJT, Y second resource sets are the second resource sets used by the terminal during CJT, and A first signal resources are the first signal resources used by the terminal during CJT. A and Y are positive integers, N≥Y, A≤S, S is the total number of first signal resources configured in the first information, and S≥N.

[0310] Send a third message to the network device, the third message indicating any of the following: Y resource groups selected by the terminal, Y second resource sets selected by the terminal, or A first signal resources selected by the terminal.

[0311] Optionally, the third information is a first indication value. When the first indication value is different, the resource group identified by the third information is different, or the second resource set is different, or the first signal resource is different.

[0312] Optionally, the third information is a bitmap;

[0313] In this bitmap, each bit corresponds to one of N resource groups. The bit value carried by each bit indicates whether the resource group corresponding to that bit has been selected by the terminal. When the bit carries a first value, it indicates that the resource group corresponding to that bit has been selected by the terminal; when the bit carries a second value, it indicates that the resource group corresponding to that bit has not been selected by the terminal. Or

[0314] The bits in the bitmap correspond to N second resource sets respectively. The bit value carried by the bit is used to indicate whether the second resource set corresponding to the bit is selected by the terminal. When the bit carries a first value, it indicates that the second resource set corresponding to the bit is selected by the terminal; when the bit carries a second value, it indicates that the second resource set corresponding to the bit is not selected by the terminal. Or

[0315] The bits in the bitmap correspond to the first signal resources configured by the first information. The bit value carried by the bit is used to indicate whether the first signal resource corresponding to the bit is selected by the terminal. When the bit carries a first value, it indicates that the first signal resource corresponding to the bit is selected by the terminal. When the bit carries a second value, it indicates that the first signal resource corresponding to the bit is not selected by the terminal.

[0316] Optionally, the bits in the bit map correspond to N resource groups respectively, including: the i1th bit in the bit map corresponds to the i1th resource group;

[0317] The bits in the bitmap correspond to N second resource sets respectively, including: the i1th bit in the bitmap corresponds to the i1th second resource set;

[0318] The bits in the bitmap correspond to the first signal resources configured by the first information, including: the i2th bit in the bitmap corresponds to the i2th first signal resource configured by the first information;

[0319] Where i1 and i2 are positive integers, i1 = 1, 2, 3, ..., N; i2 = 1, 2, 3, ..., S.

[0320] Figure 5A is a schematic diagram of the structure of the communication device 5100 proposed in an embodiment of this disclosure. The communication device 5100 can be a network device (e.g., access network device, core network device, etc.), a terminal (e.g., user equipment, etc.), a chip, chip system, or processor that supports the network device in implementing any of the above methods, or a chip, chip system, or processor that supports the terminal in implementing any of the above methods. The communication device 5100 can be used to implement the methods described in the above method embodiments; for details, please refer to the descriptions in the above method embodiments.

[0321] As shown in Figure 5A, the communication device 5100 is used to execute any of the above methods. In some embodiments, the communication device 5100 includes one or more processors 5101. The processor 5101 may be a general-purpose processor or a special-purpose processor, such as a baseband processor or a central processing unit. The baseband processor may be used to process communication protocols and communication data, and the central processing unit may be used to control communication devices (e.g., base stations, baseband chips, terminal devices, terminal device chips, DUs or CUs, etc.), execute programs, and process program data. Optionally, the communication device 5100 is used to execute any of the above methods. Optionally, one or more processors 5101 are used to invoke instructions to cause the communication device 5100 to execute any of the above methods.

[0322] In some embodiments, the communication device 5100 further includes one or more transceivers 5102. When the communication device 5100 includes one or more transceivers 5102, the transceiver 5102 performs at least one of the communication steps such as sending and / or receiving in the above-described method, and the processor 5101 performs at least one of the other steps. In optional embodiments, the transceiver may include a receiver and / or a transmitter, which may be separate or integrated. Optionally, the terms transceiver, transceiver unit, transceiver, transceiver circuit, interface circuit, interface, etc., can be used interchangeably; the terms transmitter, transmitting unit, transmitter, transmitting circuit, etc., can be used interchangeably; the terms receiver, receiving unit, receiver, receiving circuit, etc., can be used interchangeably.

[0323] In some embodiments, the communication device 5100 further includes one or more memories 5103 for storing data and / or instructions. Optionally, one or more processors 5101 are used to invoke instructions stored in the memory 5103 to cause the communication device 5100 to perform any of the above methods. Optionally, all or part of the memory 5103 may also be located outside the communication device 5100. In an optional embodiment, the communication device 5100 may include one or more interface circuits 5104. Optionally, the interface circuit 5104 is connected to the memory 5102 and can be used to receive data and / or instructions from the memory 5102 or other devices, and can be used to send data and / or instructions to the memory 5102 or other devices. For example, the interface circuit 5104 can read data and / or instructions stored in the memory 5102 and send the data and / or instructions to the processor 5101.

[0324] The communication device 5100 described in the above embodiments may be a network device or a terminal, but the scope of the communication device 5100 described in this disclosure is not limited thereto, and the structure of the communication device 5100 may not be limited by FIG. 5A. The communication device may be a standalone device or may be part of a larger device. For example, the communication device may be: (1) a standalone integrated circuit IC, or chip, or chip system or subsystem; (2) a collection of one or more ICs, optionally, the IC collection may also include storage components for storing data, programs and / or instructions; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, terminal device, smart terminal device, cellular phone, wireless device, handheld device, mobile unit, vehicle device, network device, cloud device, artificial intelligence device, etc.; (6) others, etc.

[0325] Figure 5B is a schematic diagram of the structure of chip 5200 according to an embodiment of this disclosure. For cases where the communication device 5100 can be a chip or a chip system, please refer to the schematic diagram of chip 5200 shown in Figure 5B, but it is not limited thereto.

[0326] Chip 5200 includes one or more processors 5201. Chip 5200 is used to perform any of the methods described above.

[0327] In some embodiments, chip 5200 further includes one or more interface circuits 5202. Optionally, terms such as interface circuit, interface, and transceiver pin can be used interchangeably. In some embodiments, chip 5200 further includes one or more memories 5203 for storing data and / or instructions. Optionally, all or part of the memories 5203 may be located outside of chip 5200. Optionally, the interface circuit 5202 is connected to the memories 5203, and the interface circuit 5202 can be used to receive data and / or instructions from the memories 5203 or other devices, and the interface circuit 5202 can be used to send data and / or instructions to the memories 5203 or other devices. For example, the interface circuit 5202 can read data and / or instructions stored in the memories 5203 and send the data and / or instructions to the processor 5201.

[0328] In some embodiments, the interface circuit 5202 performs at least one of the communication steps, such as sending and / or receiving, in the above-described method. For example, the interface circuit 5202 performing the communication steps, such as sending and / or receiving, in the above-described method means that the interface circuit 5202 performs data and / or instruction interaction between the processor 5201, the chip 5200, the memory 5203, or the transceiver device. In some embodiments, the processor 5201 performs at least one of the other steps.

[0329] The modules and / or devices described in the various embodiments, such as virtual devices, physical devices, and chips, can be combined or separated arbitrarily as needed. Optionally, some or all steps can also be performed collaboratively by multiple modules and / or devices, which is not limited here.

[0330] This disclosure also proposes a storage medium storing instructions that, when executed on a communication device, cause the communication device to perform any of the above methods. Optionally, the storage medium is an electronic storage medium. Optionally, the storage medium is a computer-readable storage medium, but not limited thereto; it may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but not limited thereto; it may also be a temporary storage medium.

[0331] This disclosure also proposes a program product, including a program and / or instructions, which, when executed by a communication device, cause the communication device to perform any of the above methods. Optionally, the program product is a computer program product. Optionally, the program product is stored on the storage medium.

[0332] This disclosure also proposes a computer program that, when run on a computer, causes the computer to perform any of the above methods.

[0333] In the above embodiments, implementation can be achieved, in whole or in part, through software, hardware, firmware, or any combination thereof. When implemented in software, it can be implemented, in whole or in part, as a computer program product. The computer program product includes one or more computer programs. When the computer program is loaded and executed on a computer, all or part of the processes or functions described in the embodiments of this disclosure are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer program can be stored in a computer-readable storage medium or transferred from one computer-readable storage medium to another. For example, the computer program can be transferred from one website, computer, server, or data center to another via wired (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium can be any available medium accessible to a computer or a data storage device such as a server or data center that integrates one or more available media. The available media may be magnetic media (e.g., floppy disks, hard disks, magnetic tapes), optical media (e.g., high-density digital video discs (DVDs)), or semiconductor media (e.g., solid-state drives (SSDs)).

[0334] Those skilled in the art will recognize that the units and algorithm steps of the various examples 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 implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this disclosure.

[0335] Those skilled in the art will understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0336] The above description is merely a specific embodiment of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A configuration method, characterized in that, Performed by a network device, the method includes: Send first information to the terminal. The first information is used to configure the first signal resources corresponding to N Transmit / Receive Points (TRPs), where N is a positive integer and N≥2. The first signal resources are used to determine Channel State Information (CSI). The N TRPs are used to perform coherent transmission (CJT) with the terminal. The N TRPs satisfy at least one of the following: at least two TRPs have different numbers of antenna ports, or at least one TRP has a number of antenna ports greater than a predetermined value.

2. The method as described in claim 1, characterized in that, The first information is used to configure a first resource set, which includes multiple first signal resources. All the first signal resources in the first resource set are divided into N resource groups. Each resource group includes one or more first signal resources. Different resource groups correspond to different TRPs. The first signal resources in the resource group are used to determine the CSI of the TRP corresponding to the resource group. Wherein, when the number of first signal resources in the resource group is greater than 1, the total number of ports corresponding to all first signal resources in the resource group is the same as the number of ports of the TRP corresponding to the resource group.

3. The method as described in claim 2, characterized in that, The first resource set occupies M time domain units; a resource group occupies X time domain units, and the X values ​​corresponding to different resource groups may be the same or different. Where X and M are positive integers, X≤M, when M is greater than 1, the M time-domain units are continuous, and when X is greater than 1, the X time-domain units are continuous.

4. The method as described in claim 2 or 3, characterized in that, The grouping methods for N resource groups include either the first method or the second method; The first method includes: dividing the first signal resources in the first resource set into N resource groups according to the resource position arrangement order of the first signal resources in the first resource set; The second method includes: dividing the first signal resources in the first resource set into N resource groups according to the resource identifier IDs of the first signal resources in the first resource set.

5. The method according to any one of claims 2-4, characterized in that, Different first signal resources within the same resource group correspond to the same first parameter; the first parameters corresponding to different first signal resources in different resource groups are configured independently by the network device.

6. The method as described in claim 1, characterized in that, The first information is used to configure N second resource sets, each of which includes at least one first signal resource. Different second resource sets correspond to different TRPs. The first signal resource in the second resource set is used to determine the CSI of the TRP corresponding to the second resource set. Wherein, when the number of first signal resources in the second resource set is greater than 1, the total number of ports corresponding to all first signal resources in the second resource set is the same as the number of ports of the TRP corresponding to the second resource set.

7. The method as described in claim 6, characterized in that, N second resource sets occupy M time domain units; one second resource set occupies X time domain units, and the X values ​​corresponding to different second resource sets may be the same or different; Where X and M are positive integers, X≤M, when M is greater than 1, the M time-domain units are continuous, and when X is greater than 1, the X time-domain units are continuous.

8. The method as described in any one of claims 6 or 7, characterized in that, Different first signal resources in the same second resource set correspond to the same first parameter; the first parameters corresponding to different first signal resources in different second resource sets are configured independently by the network device, the frequency domain density of the first signal resources in different second resource sets is the same, and the transmission bandwidth of the first signal resources in different second resource sets is the same.

9. The method as described in claim 5 or 8, characterized in that, The first parameter includes at least one of the following: Quasi-co-addressable QCL parameters; A first offset value, which indicates the ratio between the energy on each resource element (RE) of the physical downlink shared channel (PDSCH) and the energy on each RE of the first signaling resource; A second offset value is used to indicate the ratio between the energy per RE of the first signal resource and the energy per RE of the synchronization signal block SSB or physical broadcast channel PBCH.

10. The method according to any one of claims 1-9, characterized in that, The method further includes: The terminal is sent a second message, which instructs the terminal to select Y resource groups from N resource groups, or, the second message instructs the terminal to select Y second resource sets from N second resource sets, or, the second message instructs the terminal to select A first signal resources from the first signal resources configured in the first message; wherein, Y resource groups are the resource groups used by the terminal when performing CJT, Y second resource sets are the second resource sets used by the terminal when performing CJT, and A first signal resources are the first signal resources used by the terminal when performing CJT, A and Y are positive integers, N≥Y, A≤S, S is the total number of first signal resources configured in the first message, and S≥N; The terminal receives third information sent by the terminal, the third information indicating any of the following: Y resource groups selected by the terminal, Y second resource sets selected by the terminal, and A first signal resources selected by the terminal.

11. The method as described in claim 10, characterized in that, The third information is the first indication value. When the first indication value is different, the resource group identified by the third information is different, or the second resource set is different, or the first signal resource is different.

12. The method as described in claim 10, characterized in that, The third piece of information is a bitmap; In this bitmap, each bit corresponds to one of N resource groups. The bit value carried by each bit indicates whether the resource group corresponding to that bit has been selected by the terminal. When the bit carries a first value, it indicates that the resource group corresponding to that bit has been selected by the terminal; when the bit carries a second value, it indicates that the resource group corresponding to that bit has not been selected by the terminal. Or The bits in the bitmap correspond to N second resource sets respectively. The bit value carried by the bit is used to indicate whether the second resource set corresponding to the bit is selected by the terminal. When the bit carries a first value, it indicates that the second resource set corresponding to the bit is selected by the terminal; when the bit carries a second value, it indicates that the second resource set corresponding to the bit is not selected by the terminal. Or The bits in the bitmap correspond to the first signal resources configured by the first information. The bit value carried by the bit is used to indicate whether the first signal resource corresponding to the bit is selected by the terminal. When the bit carries a first value, it indicates that the first signal resource corresponding to the bit is selected by the terminal. When the bit carries a second value, it indicates that the first signal resource corresponding to the bit is not selected by the terminal.

13. The method as described in claim 12, characterized in that, The bits in the bitmap correspond to N resource groups respectively, including: the i1th bit in the bitmap corresponds to the i1th resource group; The bits in the bitmap correspond to N second resource sets respectively, including: the i1th bit in the bitmap corresponds to the i1th second resource set; The bits in the bitmap correspond to the first signal resources configured by the first information, including: the i2th bit in the bitmap corresponds to the i2th first signal resource configured by the first information; Where i1 and i2 are positive integers, i1 = 1, 2, 3, ..., N; i2 = 1, 2, 3, ..., S.

14. A configuration method, characterized in that, The method, executed by a terminal, includes: The system receives first information sent by a network device. The first information is used to configure first signal resources corresponding to N Transmit / Receive Points (TRPs), where N is a positive integer and N≥2. The first signal resources are used to determine Channel State Information (CSI). The N TRPs are used for coherent transmission (CJT) with the terminal. The N TRPs satisfy at least one of the following: at least two TRPs have different numbers of antenna ports, or at least one TRP has a number of antenna ports greater than a predetermined value.

15. The method as described in claim 14, characterized in that, The first information is used to configure a first resource set, which includes multiple first signal resources. All the first signal resources in the first resource set are divided into N resource groups. Each resource group includes one or more first signal resources. Different resource groups correspond to different TRPs. The first signal resources in the resource group are used to determine the CSI of the TRP corresponding to the resource group. Wherein, when the number of first signal resources in the resource group is greater than 1, the total number of ports corresponding to all first signal resources in the resource group is the same as the number of ports of the TRP corresponding to the resource group.

16. The method as described in claim 15, characterized in that, The first resource set occupies M time domain units; a resource group occupies X time domain units, and the X values ​​corresponding to different resource groups may be the same or different. Where X and M are positive integers, X≤M, when M is greater than 1, the M time-domain units are continuous, and when X is greater than 1, the X time-domain units are continuous.

17. The method as described in claim 15 or 16, characterized in that, The grouping methods for N resource groups include either the first method or the second method; The first method includes: dividing the first signal resources in the first resource set into N resource groups according to the resource position arrangement order of the first signal resources in the first resource set; The second method includes: dividing the first signal resources in the first resource set into N resource groups according to the resource identifier IDs of the first signal resources in the first resource set.

18. The method as described in any one of claims 15-17, characterized in that, Different first signal resources within the same resource group correspond to the same first parameter; the first parameters corresponding to different first signal resources in different resource groups are configured independently by the network device.

19. The method as described in claim 14, characterized in that, The first information is used to configure N second resource sets, each of which includes at least one first signal resource. Different second resource sets correspond to different TRPs. The first signal resource in the second resource set is used to determine the CSI of the TRP corresponding to the second resource set. Wherein, when the number of first signal resources in the second resource set is greater than 1, the total number of ports corresponding to all first signal resources in the second resource set is the same as the number of ports of the TRP corresponding to the second resource set.

20. The method as described in claim 19, characterized in that, N second resource sets occupy M time domain units; one second resource set occupies X time domain units, and the X values ​​corresponding to different second resource sets may be the same or different; Where X and M are positive integers, X≤M, when M is greater than 1, the M time-domain units are continuous, and when X is greater than 1, the X time-domain units are continuous.

21. The method as described in any one of claims 19 or 20, characterized in that, Different first signal resources in the same second resource set correspond to the same first parameter; the first parameters corresponding to different first signal resources in different second resource sets are configured independently by the network device, the frequency domain density of the first signal resources in different second resource sets is the same, and the transmission bandwidth of the first signal resources in different second resource sets is the same.

22. The method as described in claim 18 or 21, characterized in that, The first parameter includes at least one of the following: Quasi-co-addressable QCL parameters; A first offset value, which indicates the ratio between the energy on each resource element (RE) of the physical downlink shared channel (PDSCH) and the energy on each RE of the first signaling resource; A second offset value is used to indicate the ratio between the energy per RE of the first signal resource and the energy per RE of the synchronization signal block SSB or physical broadcast channel PBCH.

23. The method according to any one of claims 14-22, characterized in that, The method further includes: The terminal receives second information sent by the network device. This second information instructs the terminal to select Y resource groups from N resource groups, or to select Y second resource sets from N second resource sets, or to select A first signal resources from the first signal resources configured in the first information. Wherein, Y resource groups are the resource groups used by the terminal during CJT, Y second resource sets are the second resource sets used by the terminal during CJT, and A first signal resources are the first signal resources used by the terminal during CJT. A and Y are positive integers, N≥Y, A≤S, S is the total number of first signal resources configured in the first information, and S≥N. Send a third message to the network device, the third message indicating any of the following: Y resource groups selected by the terminal, Y second resource sets selected by the terminal, or A first signal resources selected by the terminal.

24. The method as described in claim 23, characterized in that, The third information is the first indication value. When the first indication value is different, the resource group identified by the third information is different, or the second resource set is different, or the first signal resource is different.

25. The method as described in claim 23, characterized in that, The third piece of information is a bitmap; In this bitmap, each bit corresponds to one of N resource groups. The bit value carried by each bit indicates whether the resource group corresponding to that bit has been selected by the terminal. When the bit carries a first value, it indicates that the resource group corresponding to that bit has been selected by the terminal; when the bit carries a second value, it indicates that the resource group corresponding to that bit has not been selected by the terminal. Or The bits in the bitmap correspond to N second resource sets respectively. The bit value carried by the bit is used to indicate whether the second resource set corresponding to the bit is selected by the terminal. When the bit carries a first value, it indicates that the second resource set corresponding to the bit is selected by the terminal; when the bit carries a second value, it indicates that the second resource set corresponding to the bit is not selected by the terminal. Or The bits in the bitmap correspond to the first signal resources configured by the first information. The bit value carried by the bit is used to indicate whether the first signal resource corresponding to the bit is selected by the terminal. When the bit carries a first value, it indicates that the first signal resource corresponding to the bit is selected by the terminal. When the bit carries a second value, it indicates that the first signal resource corresponding to the bit is not selected by the terminal.

26. The method as described in claim 25, characterized in that, The bits in the bitmap correspond to N resource groups respectively, including: the i1th bit in the bitmap corresponds to the i1th resource group; The bits in the bitmap correspond to N second resource sets respectively, including: the i1th bit in the bitmap corresponds to the i1th second resource set; The bits in the bitmap correspond to the first signal resources configured by the first information, including: the i2th bit in the bitmap corresponds to the i2th first signal resource configured by the first information; Where i1 and i2 are positive integers, i1 = 1, 2, 3, ..., N; i2 = 1, 2, 3, ..., S.

27. A network device, characterized in that, include: The transceiver module is used to send first information to the terminal. The first information is used to configure the first signal resources corresponding to N transmit / receive points (TRPs), where N is a positive integer and N≥2. The first signal resources are used to determine channel state information (CSI). The N TRPs are used to perform coherent transmission (CJT) with the terminal. The N TRPs satisfy at least one of the following: at least two TRPs have different numbers of antenna ports, or at least one TRP has a number of antenna ports greater than a predetermined value.

28. A terminal, characterized in that, include: The transceiver module is used to receive first information sent by the network device. The first information is used to configure the first signal resources corresponding to N transmit / receive points (TRPs), where N is a positive integer and N≥2. The first signal resources are used to determine channel state information (CSI). The N TRPs are used to perform coherent transmission (CJT) with the terminal. The N TRPs satisfy at least one of the following: at least two TRPs have different numbers of antenna ports, or at least one TRP has a number of antenna ports greater than a predetermined value.

29. A network device, characterized in that, include: One or more processors; The network device is used to perform the method according to any one of claims 1 to 13.

30. A terminal, characterized in that, include: One or more processors; The terminal is used to execute the method according to any one of claims 14 to 26.

31. A communication system, characterized in that, The method includes a network device and a terminal, wherein the network device is configured to implement the method according to any one of claims 1 to 13, and the terminal is configured to implement the method according to any one of claims 14 to 26.

32. A storage medium storing instructions, characterized in that, When the instructions are executed on a communication device, the communication device performs the method as claimed in any one of claims 1 to 13 or claims 14 to 26.

33. A program product, characterized in that, It includes a computer program that, when executed by a communication device, implements the method as claimed in any one of claims 1 to 13 or 14 to 26.

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