Channel measurement method and apparatus

Abstract

Provided in the present disclosure are a channel measurement method and apparatus. The method, which is executed by a terminal, comprises: receiving channel measurement resources for N ports and channel measurement resources for M ports, which are configured by a network device, wherein N is the number of antenna ports of the network device, and M is a positive integer less than N. Therefore, a terminal receives channel measurement resources for all ports and channel measurement resources for some of the ports, which are configured by a network device, such that the terminal can determine channel information of all the ports on the basis of the channel measurement resources for some of the ports, thereby reducing the overheads of the channel measurement resources and improving the performance of a communication system.

Description

Channel measurement methods and devices Technical Field

[0001] This disclosure relates to the field of communication technology, and in particular to a channel measurement method and apparatus. Background Technology

[0002] To further improve the communication efficiency or enhance the coverage of a communication system, increasing the number of antenna ports to expand the antenna size is an important technical means to achieve this goal. Summary of the Invention

[0003] This disclosure provides a channel measurement method and apparatus for supporting a terminal to receive channel measurement resources of N port and M port configured by a network device, and then obtain channel information based on the channel measurement resources of N port and M port, which can reduce the overhead of channel measurement resources and improve the performance of the communication system.

[0004] This disclosure presents a channel measurement method and apparatus.

[0005] According to a first aspect of the present disclosure, a channel measurement method is proposed, executed by a terminal, comprising: receiving channel measurement resources of N ports and M ports configured by a network device, wherein N is the number of antenna ports of the network device, and M is a positive integer less than N.

[0006] In the above embodiments, the terminal receives the channel measurement resources of port N and port M configured by the network device, which enables the terminal to determine the channel information of port N based on the channel measurement resources of port M, thereby reducing the overhead of channel measurement resources and improving the performance of the communication system.

[0007] According to a second aspect of the present disclosure, a channel measurement method is proposed, executed by a network device, comprising: configuring channel measurement resources for N ports and channel measurement resources for M ports to a terminal, wherein N is the number of antenna ports of the network device, and M is a positive integer less than N.

[0008] In the above embodiments, the network device configures channel measurement resources for port N and port M to the terminal. The channel measurement resources for port M can satisfy the terminal's determination of channel information for port N, reduce the overhead of channel measurement resources, and improve the performance of the communication system.

[0009] According to a third aspect of the present disclosure, a channel measurement method is proposed, comprising: a network device configuring channel measurement resources of N ports and M ports to a terminal, wherein N is the number of antenna ports of the network device, and M is a positive integer less than N; and the terminal receiving the channel measurement resources of N ports and M ports configured by the network device.

[0010] According to a fourth aspect of the present disclosure, a terminal is provided, comprising: a transceiver module, configured to receive channel measurement resources of N ports and M ports configured by a network device, wherein N is the number of antenna ports of the network device, and M is a positive integer less than N.

[0011] According to a fifth aspect of the present disclosure, a network device is provided, comprising: a transceiver module configured to configure channel measurement resources of N ports and M ports to a terminal, wherein N is the number of antenna ports of the network device, and M is a positive integer less than N.

[0012] According to a sixth aspect of the present disclosure, a terminal is provided, comprising: one or more processors, wherein the terminal is configured to perform the method described in the first aspect.

[0013] According to a seventh aspect of the present disclosure, a network device is provided, comprising: one or more processors, wherein the network device is configured to perform the method described in the second aspect.

[0014] According to an eighth aspect of the present disclosure, a communication device is provided, comprising: one or more processors; and a memory coupled to the processors, the memory storing instructions which, when executed by the processors, cause the communication device to perform the method as described in at least one of the first and second aspects.

[0015] According to a ninth aspect of the present disclosure, a communication system is provided, comprising: a terminal and a network device; the terminal performs the method as described in the first aspect, and the network device performs the method as described in the second aspect embodiment.

[0016] According to a tenth aspect of the present disclosure, a computer storage medium is provided, wherein the computer storage medium stores computer-executable instructions; after being executed by a processor, the computer-executable instructions are capable of implementing the method described in at least one aspect of the first aspect and the second aspect.

[0017] According to an eleventh aspect of the present disclosure, a computer program product is provided, wherein the computer program product stores a computer program; after being executed by a processor, the computer program is able to implement the method described in at least one aspect of the first aspect and the second aspect.

[0018] Additional aspects and advantages of this disclosure will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this disclosure. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings required for the description of the embodiments are introduced below. The following drawings are only some embodiments of this disclosure and do not impose specific limitations on the protection scope of this disclosure.

[0020] Figure 1 is an architecture diagram of a communication system provided in an embodiment of this disclosure;

[0021] Figure 2A is a flowchart of a channel measurement method provided in an embodiment of this disclosure;

[0022] Figure 2B is a flowchart of another channel measurement method provided in an embodiment of this disclosure;

[0023] Figure 3A is a schematic diagram of a channel measurement resource provided in an embodiment of this disclosure;

[0024] Figure 3B is a schematic diagram of another channel measurement resource provided in an embodiment of this disclosure;

[0025] Figure 4 is a flowchart of another channel measurement method provided in an embodiment of this disclosure;

[0026] Figure 5 is a schematic diagram of another channel measurement resource provided in an embodiment of this disclosure;

[0027] Figure 6A is a structural diagram of a terminal provided in an embodiment of this disclosure;

[0028] Figure 6B is a structural diagram of a network device provided in an embodiment of this disclosure;

[0029] Figure 7A is a structural diagram of a communication device provided in an embodiment of this disclosure;

[0030] Figure 7B is a structural diagram of a chip provided in an embodiment of this disclosure. Detailed Implementation

[0031] This disclosure presents a channel measurement method and apparatus.

[0032] In a first aspect, embodiments of this disclosure propose a channel measurement method, executed by a terminal, comprising: receiving channel measurement resources of N ports and M ports configured by a network device, wherein N is the number of antenna ports of the network device, and M is a positive integer less than N.

[0033] In the above embodiments, the terminal receives the channel measurement resources of port N and port M configured by the network device, which enables the terminal to determine the channel information of port N based on the channel measurement resources of port M, thereby reducing the overhead of channel measurement resources and improving the performance of the communication system.

[0034] In conjunction with some embodiments of the first aspect, in some embodiments, the channel measurement resources of the N port are located before the channel measurement resources of the M port in the time domain; and / or among the channel measurement resources of the plurality of N ports, at least one channel measurement resource of the N port is located before the channel measurement resources of the M port in the time domain; and / or the channel measurement resources of the N port are different from the channel measurement resources of the M port in the frequency domain.

[0035] In the above embodiments, the terminal receives the channel measurement resources of port M configured by the network device, and the channel measurement resources of port N that are located before the channel measurement resources of port M in the time domain, and / or among the channel measurement resources of multiple ports N, at least one of the channel measurement resources of port N that is located before the channel measurement resources of port M in the time domain, and / or the channel measurement resources of port N that are different from the channel measurement resources of port M in the frequency domain. This enables the terminal to determine the channel information of port N based on the channel measurement resources of port M, thereby reducing the overhead of channel measurement resources and improving the performance of the communication system.

[0036] In conjunction with some embodiments of the first aspect, in some embodiments, the channel measurement resources of port N and port M are used by the terminal to perform measurements based on the channel measurement resources of port N to determine the first channel information of port N, to perform measurements based on the channel measurement resources of port M to determine the second channel information of port M, and to determine the channel information of port N predicted by the second channel information of port M based on the first channel information of port N and the second channel information of port M.

[0037] In the above embodiments, after the terminal obtains the first channel information based on the channel measurement resources of port N, it can determine the channel information of port N by combining the first channel information with the second channel information obtained based on the channel measurement resources of port M. This can save the overhead of channel measurement resources and improve the performance of the communication system.

[0038] In conjunction with some embodiments of the first aspect, in some embodiments, the channel measurement resources of port M include multiple first resources with the same number of ports or different numbers of ports, and the sum of the number of ports corresponding to the multiple first resources is equal to M; and / or the channel measurement resources of port N include multiple second resources with the same number of ports or different numbers of ports, and the sum of the number of ports corresponding to the multiple second resources is equal to N.

[0039] In the above embodiments, the channel measurement resources of port M and / or port N received by the terminal include multiple resources with the same number of ports or different number of ports. The sum of the number of ports corresponding to the multiple resources with the same number of ports or different number of ports is equal to M and / or N, which can satisfy the requirement of obtaining channel information of all antenna ports when the number of antenna ports increases.

[0040] In conjunction with some embodiments of the first aspect, in some embodiments, the channel measurement resources of port N and the channel measurement resources of port M are associated. The associated channel measurement resources of port N and port M are used by the terminal to perform measurements based on the channel measurement resources of port N to determine the first channel information of port N, to perform measurements based on the channel measurement resources of port M to determine the second channel information of port M, and to determine the channel information of port N predicted by the second channel information of port M based on the first channel information of port N and the second channel information of port M, and to determine the channel state information to be sent to the network device based on the channel information of port N.

[0041] In the above embodiments, the terminal can determine the channel information of the N port based on the channel measurement resources of the M port and the channel measurement resources of the N port which are associated with the channel measurement resources of the M port, thereby reducing the overhead of channel measurement resources and improving the performance of the communication system.

[0042] In conjunction with some embodiments of the first aspect, in some embodiments, the channel measurement resources of port N and the channel measurement resources of port M are associated, including at least one of the following: the channel measurement resources of port N and the channel measurement resources of port M are associated with the same channel state information reporting configuration; the resource identification information corresponding to the channel measurement resources of port N and the resource identification information corresponding to the channel measurement resources of port M are located in the same channel state information reporting configuration; the channel state information reporting configuration identifier corresponding to either the channel measurement resources of port N or the channel measurement resources of port M is configured in the channel state information reporting configuration associated with the other.

[0043] In the above embodiments, the terminal can determine the channel information of port N based on the channel measurement resources of port M and the channel state information of port N that is associated with the channel measurement resources of port M; and / or determine the channel information of port N based on the channel measurement resources of port M and the channel state information of port N that is in the same channel state information reporting configuration as the resource identification information of the channel measurement resources of port M; and / or determine the channel information of port N based on the channel measurement resources of port M and the channel state information reporting configuration identifier of the channel state information of port N that is configured in the same channel state information reporting configuration as the channel measurement resources of port M. This can reduce the overhead of channel measurement resources and improve the performance of the communication system.

[0044] In conjunction with some embodiments of the first aspect, in some embodiments, the terminal receives channel measurement resources of port N and port M configured by the network device, including: receiving a first resource set configured by the network device, the first resource set including channel measurement resources of port N and port M, wherein the channel measurement resources of port N and port M have the same bandwidth or frequency domain density; or receiving a second resource set and a third resource set configured by the network device, the second resource set including channel measurement resources of port N and the third resource set including channel measurement resources of port M, wherein the channel measurement resources of port N and port M have different bandwidths or frequency domain densities.

[0045] In the above embodiments, the terminal receives a first resource set configured by the network device to determine the channel measurement resources of port N and port M, or receives a second resource set and a third resource set configured by the network device to determine the channel measurement resources of port N and port M, and then obtains channel information based on the channel measurement resources of port N and port M, which can reduce the overhead of channel measurement resources and improve the performance of the communication system.

[0046] In conjunction with some embodiments of the first aspect, in some embodiments, the channel measurement resources of the N port and the channel measurement resources of the M port are spaced apart by a first duration in the time domain.

[0047] In the above embodiments, the channel measurement resources of port N and port M are spaced apart by a first time interval in the time domain. The channel measurement resources of port N are located before or after the channel measurement resources of port M in the time domain. The terminal can determine the channel information of port N at the time domain location of the channel measurement resources of port M by combining the channel information measured on the channel measurement resources of port N that are located before or after the channel measurement resources of port M in the time domain with the channel information measured on the channel measurement resources of port M. This can reduce the overhead of channel measurement resources and improve the performance of the communication system.

[0048] In conjunction with some embodiments of the first aspect, in some embodiments, the channel measurement resources of the N port and the channel measurement resources of the M port have the same quasi-co-address QCL relationship.

[0049] In the above embodiments, the terminal can obtain more accurate channel information for the N port based on the channel information measured on the channel measurement resources of the N port, which has the same QCL relationship as the channel measurement resources of the M port, and the channel information measured on the channel measurement resources of the M port.

[0050] In conjunction with some embodiments of the first aspect, in some embodiments, the channel measurement resources of the N port and the channel measurement resources of the M port have the same power control factor; or the difference between the power control factor corresponding to the channel measurement resources of the N port and the power control factor corresponding to the channel measurement resources of the M port is less than a power threshold.

[0051] In the above embodiments, the terminal can obtain more accurate N-port channel information based on channel information measured on N-port channel measurement resources that have the same power control factor as the M-port channel measurement resources, and channel information measured on M-port channel measurement resources. Alternatively, the terminal can obtain more accurate N-port channel information based on channel information measured on N-port channel measurement resources that have a power control factor that differs from the control factor corresponding to the M-port channel measurement resources by less than a power threshold, and channel information measured on M-port channel measurement resources.

[0052] In conjunction with some embodiments of the first aspect, in some embodiments, the channel measurement resources of the N port are periodic resources, semi-persistent resources, or aperiodic resources; and / or the channel measurement resources of the M port are periodic resources, semi-persistent resources, or aperiodic resources.

[0053] In conjunction with some embodiments of the first aspect, in some embodiments, the above method further includes: when the channel measurement resources of port N are periodic resources, the network device configures the periodic information of the channel measurement resources of port N to the terminal; and / or when the channel measurement resources of port M are periodic resources, the network device configures the periodic information of the channel measurement resources of port M to the terminal.

[0054] In the above embodiments, the terminal can obtain channel information based on the channel measurement resources of the N port (which is a periodic resource, a semi-persistent resource, or an aperiodic resource) and the channel measurement resources of the M port, thereby reducing the overhead of channel measurement resources and improving the performance of the communication system.

[0055] In conjunction with some embodiments of the first aspect, in some embodiments, the above method further includes: the terminal sending a request message to the network device, wherein the request message is used to request the network device to perform at least one of the following: configuring channel measurement resources for port N; configuring channel measurement resources for port M.

[0056] In the above embodiments, the terminal can request the network device to configure the channel measurement resources of port N and port M. The terminal can also request the network device to configure the corresponding channel measurement resources on its own, which can reduce the overhead of channel measurement resources and improve the performance of the communication system.

[0057] In conjunction with some embodiments of the first aspect, in some embodiments, the request message is used to request a network device to configure channel measurement resources for port M, wherein the above method further includes: a terminal receiving indication information sent by the network device, wherein the indication information is used to indicate port configurations of multiple ports M, and the request message is also used to indicate one or more port configurations among the port configurations of multiple ports M.

[0058] In the above embodiments, the network device can indicate the port configuration of multiple M ports to the terminal. The terminal can select one or more port configurations from the multiple M port configurations according to the instructions of the network device, so as to instruct the network device to configure the channel measurement resources of the M ports that meet the port configuration, thereby improving the accuracy of resource configuration, reducing the overhead of channel measurement resources, and improving the performance of the communication system.

[0059] In conjunction with some embodiments of the first aspect, in some embodiments, when the request message is used to request the network device to configure the channel measurement resources of port M, the terminal sends the request message to the network device, including: determining that the channel information obtained based on the channel measurement resources of port N and the channel measurement resources of port M meets a threshold condition, and then sending the request message to the network device.

[0060] In the above embodiments, when the terminal determines that the channel information obtained based on the channel measurement resources of port N and port M meets the threshold condition, it requests the network device to configure the channel measurement resources of port M. This can improve the accuracy of channel measurement resource configuration, reduce the overhead of channel measurement resources, and improve the performance of the communication system.

[0061] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes: the terminal performing channel estimation and measurement based on the channel measurement resources of port N and port M to determine channel state information; and sending the channel state information to the network device, wherein the channel state information is used by the network device to determine whether to send a reference signal of port N to the terminal based on the channel measurement resources of port N, and / or whether to send a reference signal of port M to the terminal based on the channel measurement resources of port M.

[0062] In the above embodiments, the terminal performs channel estimation and measurement based on the channel measurement resources of port N and port M to determine channel state information and sends it to the network device. This information is used by the network device to determine whether to send the reference signal of port N to the terminal based on the channel measurement resources of port N, and / or whether to send the reference signal of port M to the terminal based on the channel measurement resources of port M. This can improve the accuracy of channel measurement resource configuration, reduce the overhead of channel measurement resources, and improve the performance of the communication system.

[0063] Secondly, this disclosure provides a channel measurement method, executed by a network device, comprising: configuring channel measurement resources for N ports and channel measurement resources for M ports to a terminal, wherein N is the number of antenna ports of the network device, and M is a positive integer less than N.

[0064] In the above embodiments, the network device configures channel measurement resources for port N and port M to the terminal. The channel measurement resources for port M can satisfy the terminal's determination of channel information for port N, reduce the overhead of channel measurement resources, and improve the performance of the communication system.

[0065] In conjunction with some embodiments of the second aspect, in some embodiments, the channel measurement resources of the N-port are located before the channel measurement resources of the M-port in the time domain; and / or among the channel measurement resources of the plurality of N-ports, at least one of the N-port channel measurement resources is located before the channel measurement resources of the M-port in the time domain; and / or the channel measurement resources of the N-port are different from the channel measurement resources of the M-port in the frequency domain.

[0066] In conjunction with some embodiments of the second aspect, in some embodiments, the channel measurement resources of port N and port M are used by the terminal to perform measurements based on the channel measurement resources of port N to determine the first channel information of port N, to perform measurements based on the channel measurement resources of port M to determine the second channel information of port M, and to determine the channel information of port N predicted by the second channel information of port M based on the first channel information of port N and the second channel information of port M.

[0067] In conjunction with some embodiments of the second aspect, in some embodiments, the channel measurement resources of port M include multiple first resources with the same number of ports or different numbers of ports, and the sum of the number of ports corresponding to the multiple first resources is equal to M; and / or the channel measurement resources of port N include multiple second resources with the same number of ports or different numbers of ports, and the sum of the number of ports corresponding to the multiple second resources is equal to N.

[0068] In conjunction with some embodiments of the second aspect, in some embodiments, the channel measurement resources of port N and the channel measurement resources of port M are associated. The associated channel measurement resources of port N and port M are used by the terminal to perform measurements based on the channel measurement resources of port N to determine the first channel information of port N, to perform measurements based on the channel measurement resources of port M to determine the second channel information of port M, and to determine the channel information of port N predicted by the second channel information of port M based on the first channel information of port N and the second channel information of port M, and to determine the channel state information to be sent to the network device based on the channel information of port N.

[0069] In conjunction with some embodiments of the second aspect, in some embodiments, the channel measurement resources of port N and the channel measurement resources of port M are associated, including at least one of the following: the channel measurement resources of port N and the channel measurement resources of port M are associated with the same channel state information reporting configuration; the resource identification information corresponding to the channel measurement resources of port N and the resource identification information corresponding to the channel measurement resources of port M are located in the same channel state information reporting configuration; the channel state information reporting configuration identifier corresponding to either the channel measurement resources of port N or the channel measurement resources of port M is configured in the channel state information reporting configuration associated with the other.

[0070] In conjunction with some embodiments of the second aspect, in some embodiments, the network device configures channel measurement resources for port N and port M to a terminal, including: configuring a first resource set to the terminal, the first resource set including channel measurement resources for port N and channel measurement resources for port M, wherein the channel measurement resources for port N and the channel measurement resources for port M have the same bandwidth or frequency domain density; or configuring a second resource set and a third resource set to the terminal, the second resource set including channel measurement resources for port N and the third resource set including channel measurement resources for port M, wherein the channel measurement resources for port N and the channel measurement resources for port M have different bandwidths or frequency domain densities.

[0071] In conjunction with some embodiments of the second aspect, in some embodiments, the channel measurement resources of port N and the channel measurement resources of port M are spaced apart by a first duration in the time domain.

[0072] In conjunction with some embodiments of the second aspect, in some embodiments, the channel measurement resources of the N port and the channel measurement resources of the M port have the same quasi-co-addressable QCL relationship.

[0073] In conjunction with some embodiments of the second aspect, in some embodiments, the channel measurement resources of the N port and the channel measurement resources of the M port have the same power control factor; or the difference between the power control factor corresponding to the channel measurement resources of the N port and the power control factor corresponding to the channel measurement resources of the M port is less than a power threshold.

[0074] In conjunction with some embodiments of the second aspect, in some embodiments, the channel measurement resources of the N port are periodic resources, semi-persistent resources, or aperiodic resources; and / or the channel measurement resources of the M port are periodic resources, semi-persistent resources, or aperiodic resources.

[0075] In conjunction with some embodiments of the second aspect, in some embodiments, the above method further includes: when the channel measurement resources of port N are periodic resources, the network device configures the periodic information of the channel measurement resources of port N to the terminal; and / or when the channel measurement resources of port M are periodic resources, the network device configures the periodic information of the channel measurement resources of port M to the terminal.

[0076] In conjunction with some embodiments of the second aspect, in some embodiments, the above method further includes: a network device receiving a request message sent by a terminal, wherein the request message is used to request the network device to perform at least one of the following: configuring channel measurement resources for port N; configuring channel measurement resources for port M.

[0077] In conjunction with some embodiments of the second aspect, in some embodiments, the request message is used to request the network device to configure the channel measurement resources of the M port, wherein the above method further includes: the network device sending indication information to the terminal, wherein the indication information is used to indicate the port configuration of a plurality of M ports, and the request message is also used to indicate one or more port configurations among the port configurations of the plurality of M ports.

[0078] In conjunction with some embodiments of the second aspect, in some embodiments, when a request message is used to request a network device to perform configuration of channel measurement resources for port M, the network device receives a request message sent by a terminal, including: receiving a request message sent by the terminal after determining that the channel information obtained based on the channel measurement resources of port N and the channel measurement resources of port M meets a threshold condition.

[0079] In conjunction with some embodiments of the second aspect, in some embodiments, the above method further includes: a network device receiving channel state information sent by a terminal; wherein the channel state information is determined by the terminal through channel estimation and measurement based on the channel measurement resources of port N and port M; and determining, based on the channel state information, whether to send a reference signal of port N to the terminal based on the channel measurement resources of port N, and / or whether to send a reference signal of port M to the terminal based on the channel measurement resources of port M.

[0080] Thirdly, this disclosure provides a channel measurement method, comprising: a network device configuring channel measurement resources for N ports and channel measurement resources for M ports to a terminal, wherein N is the number of antenna ports of the network device and M is a positive integer less than N; and the terminal receiving the channel measurement resources for N ports and channel measurement resources for M ports configured by the network device.

[0081] Fourthly, embodiments of this disclosure provide a terminal, including: a transceiver module, configured to receive channel measurement resources of N ports and M ports configured by a network device, wherein N is the number of antenna ports of the network device, and M is a positive integer less than N.

[0082] Fifthly, embodiments of this disclosure provide a network device, including: a transceiver module, configured to configure channel measurement resources of N ports and M ports to a terminal, wherein N is the number of antenna ports of the network device, and M is a positive integer less than N.

[0083] In a sixth aspect, a terminal is proposed, comprising: one or more processors, wherein the terminal is used to execute the method described in the first aspect.

[0084] In a seventh aspect, a network device is proposed, comprising: one or more processors, wherein the network device is configured to perform the method described in the second aspect.

[0085] Eighthly, this disclosure provides a communication device comprising: one or more processors; and a memory coupled to the processors, the memory storing instructions which, when executed by the processors, cause the communication device to perform the method described in at least one of the first and second aspects.

[0086] In a ninth aspect, embodiments of this disclosure provide a communication system comprising: a terminal and a network device; wherein the terminal is configured to perform the method as described in the first aspect, and the network device is configured to perform the method as described in the second aspect.

[0087] In a tenth 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 as described in at least one of the first and second aspects.

[0088] In one aspect, embodiments of this disclosure provide a program product that, when executed by a communication device, causes the communication device to perform the method as described in at least one of the first and second aspects.

[0089] In a twelfth aspect, embodiments of this disclosure provide a computer program that, when run on a computer, causes the computer to perform the method as described in at least one of the first and second aspects.

[0090] In a thirteenth aspect, embodiments of this disclosure provide a chip or chip system. The chip or chip system includes processing circuitry configured to perform the methods described in at least one of the first and second aspects described above.

[0091] It is understood that the aforementioned communication equipment, communication system, storage medium, program product, etc., 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.

[0092] This disclosure provides a channel measurement method and apparatus. In some embodiments, the terms "channel measurement method" and "information processing method," "communication method," etc., can be used interchangeably.

[0093] 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.

[0094] 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.

[0095] 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.

[0096] In the embodiments disclosed herein, "multiple" refers to two or more.

[0097] 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.

[0098] 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.

[0099] 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.

[0100] 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.

[0101] In some embodiments, “including A,” “containing A,” “for indicating A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

[0102] In some embodiments, terms such as "time / frequency" and "time-frequency domain" refer to the time domain and / or frequency domain.

[0103] 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.

[0104] 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”.

[0105] 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.

[0106] In some embodiments, "network" can be interpreted as devices included in a network (e.g., access network devices, core network devices, etc.).

[0107] 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.

[0108] 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.

[0109] 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.

[0110] 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.

[0111] In some embodiments, the acquisition of data, information, etc., may comply with the laws and regulations of the country where the location is situated.

[0112] In some embodiments, data, information, etc., may be obtained with the user's consent.

[0113] 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.

[0114] Figure 1 is a schematic diagram of the architecture of a communication system according to an embodiment of the present disclosure.

[0115] Figure 1 is an architecture diagram of a communication system provided in an embodiment of this disclosure.

[0116] As shown in Figure 1, the communication system 100 includes a terminal 101 and a network device 102.

[0117] In some embodiments, terminal 101 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, computer with wireless transceiver function, virtual reality (VR) terminal, augmented reality (AR) terminal, wireless terminal in industrial control, wireless terminal in self-driving, wireless terminal in remote medical surgery, wireless terminal in smart grid, wireless terminal in transportation safety, wireless terminal in smart city, and wireless terminal in smart home.

[0118] In some embodiments, network device 102 may include at least one of access network device and core network device.

[0119] 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, but is not limited to, at least one of the following in a 5G communication system: evolved Node B (eNB), next-generation eNB (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.

[0120] In some embodiments, the access network device may be a satellite.

[0121] In some embodiments, the core network equipment may be a single device, multiple devices, or a group of devices, including all or part of a first network element, a second network element, a third network element, a fourth network element, etc. Network elements may be virtual or physical. The core network may include, for example, at least one of an Evolved Packet Core (EPC), a 5G Core Network (5GCN), and a Next Generation Core (NGC).

[0122] In some embodiments, the first network element is, for example, an access and mobility management function (AMF) network element.

[0123] In some embodiments, the second network element is, for example, a Location Management Function (LMF) network element.

[0124] In some embodiments, the third network element is, for example, a sensing function (SF) network element.

[0125] In some embodiments, the first network element is used to implement terminal access management and mobility management. It is responsible for terminal state maintenance, terminal reachability management, mobility management (MM), forwarding of non-access stratum (NAS) messages, and forwarding of session management (SM) N2 messages.

[0126] In some embodiments, the second network element is used to coordinate and schedule the resources required for the location of the terminal.

[0127] In some embodiments, the third network element is used to perform wireless sensing using access network equipment or terminals to realize sensing services.

[0128] In some embodiments, at least one of the first network element, the second network element, and the third network element can be independent of the core network equipment.

[0129] In some embodiments, at least one of the first network element, the second network element, and the third network element may be part of the core network equipment.

[0130] 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.

[0131] 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. Each main body may be physical or virtual. 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.

[0132] 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), IEEE 802.20, and Ultra-Wideband. The technologies used include UWB (Ultra-Wideband), 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 communication methods, and next-generation systems built upon them. Furthermore, multiple systems can be combined (e.g., a combination of LTE or LTE-A with 5G).

[0133] In related technologies, it is not supported for network devices to configure channel measurement resources for all ports and some ports for terminals. This is a problem that urgently needs to be solved.

[0134] Based on this, this disclosure provides a channel measurement method or apparatus, wherein the method is executed by a terminal and includes: receiving channel measurement resources for N ports and M ports configured by a network device, where N is the number of antenna ports of the network device and M is a positive integer less than N. Thus, by receiving channel measurement resources for all ports and some ports configured by the network device, the terminal can determine the channel information of all ports based on the channel measurement resources of some ports, reducing the overhead of channel measurement resources and improving the performance of the communication system.

[0135] Figure 2A is an interactive schematic diagram illustrating a channel measurement method according to an embodiment of the present disclosure. As shown in Figure 2A, the present disclosure relates to a channel measurement method, which includes:

[0136] S201A, the network device configures the channel measurement resources of the N port and the M port to the terminal.

[0137] In some embodiments, the terminal receives resource configuration information sent by the network device for configuring the channel measurement resources of the N port and the M port. However, the terminal is not limited to this. The terminal may also receive resource configuration information sent by other entities other than the network device for configuring the channel measurement resources of the N port and the M port. In this case, S201A can be omitted.

[0138] In some embodiments, the terminal obtains resource configuration information specified by the protocol for configuring the channel measurement resources of the N port and the M port, in which case S201A can be omitted.

[0139] In some embodiments, the terminal obtains resource configuration information from the upper (or high) layer(s) for configuring the channel measurement resources of the N port and the M port, in which case S201A can be omitted.

[0140] In some embodiments, the terminal processes the data to obtain resource configuration information for configuring the channel measurement resources of the N port and the M port, in which case S201A can be omitted.

[0141] In some embodiments, the terminal autonomously implements the functions indicated by the resource configuration information for configuring the channel measurement resources of the N port and the channel measurement resources of the M port, or the above functions are default or default, in which case S201A can be omitted.

[0142] In some embodiments, N is the number of antenna ports of the network device, and M is a positive integer less than N.

[0143] For example, the network device has 128 antenna ports N and 64 ports M, and the network device configures 128-port channel measurement resources and 64-port channel measurement resources for the terminal.

[0144] For example, the network device has 256 antenna ports N and 64 ports M, and the network device configures channel measurement resources for 256 ports and 64 ports to the terminal.

[0145] In some embodiments, the network device configures one or more N-port channel measurement resources for the terminal.

[0146] In some embodiments, the network device configures channel measurement resources for one or more M ports to the terminal.

[0147] In some embodiments, channel measurement resources include channel state information reference signal (CSI-RS) resources, sounding reference signal (SRS) resources, etc.

[0148] In some embodiments, when a network device receives a request message sent by a terminal, and the request message requests the network device to configure channel measurement resources for port N and port M for the terminal, the network device configures channel measurement resources for port N and port M for the terminal.

[0149] In some embodiments, when the network device determines that the terminal needs to perform channel measurements, it configures channel measurement resources for the N port and channel measurement resources for the M port for channel measurement to the terminal.

[0150] In some embodiments, the channel measurement resources of the N-port are located before the channel measurement resources of the M-port in the time domain; and / or among the channel measurement resources of the plurality of N-ports, at least one channel measurement resource of the N-port is located before the channel measurement resources of the M-port in the time domain; and / or the channel measurement resources of the N-port are different from the channel measurement resources of the M-port in the frequency domain.

[0151] For example, as shown in Figure 3A, where the horizontal axis t represents time and the vertical axis f represents frequency, in the time domain, the channel measurement resources of port N at time t1 are located before the channel measurement resources of port M at times t2 and t2+T. Optionally, as shown in Figure 3A, if the network device receives a request message from the terminal at time t3, and the request message instructs the network device to configure the channel measurement resources of port M for the terminal, then the network device configures the channel measurement resources of port M for the terminal at time t2. Furthermore, if the channel measurement resources of port M are periodic resources, then the network device configures the channel measurement resources of port M for the terminal at t2+T after the period T, and so on.

[0152] For example, as shown in Figure 3B, where the horizontal axis t represents time and the vertical axis f represents frequency, the channel measurement resources of port N differ from those of port M in the frequency domain. Optionally, as shown in Figure 3B, the frequency domain resources in the channel measurement resources of port N are smaller than those in the channel measurement resources of port M. For example, the channel measurement resources of port N occupy one physical resource block (PRB), while the channel measurement resources of port M occupy two PRBs.

[0153] In some embodiments, the channel measurement resources of port N are located in the same time slot as the channel measurement resources of port M in the time domain.

[0154] In some embodiments, the channel measurement resources of port N are located in the same time slot as the channel measurement resources of port M in the time domain, and the channel measurement resources of port N are located differently from the channel measurement resources of port M in the frequency domain.

[0155] In some embodiments, the channel measurement resources of port N are located in two adjacent time slots in the time domain, as are the channel measurement resources of port M.

[0156] In some embodiments, the channel measurement resources of port N are located in two adjacent time slots with the channel measurement resources of port M in the time domain, and the channel measurement resources of port N are different from the channel measurement resources of port M in the frequency domain.

[0157] In some embodiments, the channel measurement resources of the N port and the channel measurement resources of the M port are used by the terminal to perform measurements based on the channel measurement resources of the N port to determine the first channel information of the N port, to perform measurements based on the channel measurement resources of the M port to determine the second channel information of the M port, and to determine the channel information of the N port predicted by the second channel information of the M port based on the first channel information of the N port and the second channel information of the M port.

[0158] In this embodiment of the present disclosure, the terminal receives channel measurement resources of port N and port M configured by the network device, performs measurement based on the channel measurement resources of port N to determine the first channel information of port N; performs measurement based on the channel measurement resources of port M to determine the second channel information of port M; and determines the channel information of port N predicted by the second channel information of port M based on the first channel information of port N and the second channel information of port M.

[0159] It is understandable that the channel measurement resources of port N are located before the channel measurement resources of port M in the time domain. Assuming the channel measurement resources of port N are at time domain position T1 and those of port M are at time domain position T1+t, the terminal can determine the channel information of port N at time domain position T1 by measuring the channel measurement resources of port N. The terminal determines the channel information of port M at time domain position T1+t based on the channel measurement resources of port M, and further combines this with the channel information of port N at time domain position T1 to determine the channel information of port N at time domain position T1+t. In this case, the network device does not need to configure the channel measurement resources of port N at time domain position T1+t; accurate channel information of port N can be obtained by configuring only the channel measurement resources of port M, thus reducing the resource overhead of channel measurement resources.

[0160] It is understandable that the channel measurement resources of port N are located differently in the frequency domain than those of port M. Assuming the channel measurement resources of port N are at frequency domain position F1 and those of port M are at frequency domain position F1+f, the terminal can determine the channel information of port N at frequency domain position F1 by measuring the channel measurement resources of port N. The terminal can then determine the channel information of port M at frequency domain position F1+f by using the channel measurement resources of port M, and further combine this with the channel information of port N at frequency domain position F1 to determine the channel information of port N at frequency domain position F1+f. In this case, the network device does not need to configure the channel measurement resources of port N at frequency domain position F1+f; accurate channel information of port N can be obtained by configuring only the channel measurement resources of port M, thus reducing the resource overhead of channel measurement resources.

[0161] In some embodiments, the channel measurement resources of multiple N ports and the channel measurement resources of M ports are used by the terminal to perform measurements based on the channel measurement resources of multiple N ports to determine the average value of the first channel information of multiple N ports, to perform measurements based on the channel measurement resources of M ports to determine the second channel information of M ports, and to determine the channel information of N ports predicted by the second channel information of M ports based on the average value of the first channel information of multiple N ports and the second channel information of M ports.

[0162] In some embodiments, the channel measurement resources of port M include a plurality of first resources with the same number of ports or different numbers of ports, the sum of the number of ports corresponding to the plurality of first resources being equal to M; and / or the channel measurement resources of port N include a plurality of second resources with the same number of ports or different numbers of ports, the sum of the number of ports corresponding to the plurality of second resources being equal to N.

[0163] In this embodiment of the disclosure, the channel measurement resources of port M include I1 J 1,i Channel measurement resources of the port, where 1 ≤ I1, The number of ports for resources i = 1, ..., I1 can be equal or unequal. The N-port channel measurement resources include I2 J... 2,i Channel measurement resources of the port, where 1 ≤ I², The channel measurement resources of the port, i = 1, ..., I2, where the number of ports in I2 resources can be equal or unequal. J 1,i and J 1,j The values ​​can be equal or unequal.

[0164] In this embodiment of the disclosure, the channel measurement resources of port M include a plurality of first resources with the same number of ports. For example, M is 128, and the channel measurement resources of port 128 include four first resources of 32 ports each.

[0165] In this embodiment of the disclosure, the channel measurement resources of port M include multiple first resources with different numbers of ports. For example, M is 128, and the channel measurement resources of port 128 include three first resources of 32 ports and two first resources of 16 ports.

[0166] In this embodiment of the disclosure, the channel measurement resources for N ports include a plurality of second resources with the same number of ports. For example, N is 256, and the channel measurement resources for 256 ports include eight second resources with 32 ports each.

[0167] In this embodiment of the disclosure, the channel measurement resources for N ports include a plurality of second resources with different numbers of ports. For example, N is 256, and the channel measurement resources for 256 ports include six 32-port first resources and four 16-port second resources.

[0168] In some embodiments, the number of ports of any first resource may be the same as or different from the number of ports of any second resource.

[0169] In some embodiments, the channel measurement resources of port N and the channel measurement resources of port M are associated, wherein the associated channel measurement resources of port N and port M are used by the terminal to perform measurements based on the channel measurement resources of port N to determine the first channel information of port N, to perform measurements based on the channel measurement resources of port M to determine the second channel information of port M, and to determine the channel information of port N predicted by the second channel information of port M based on the first channel information of port N and the second channel information of port M, and to determine the channel state information to be transmitted to the network device based on the channel information of port N.

[0170] In this embodiment of the disclosure, the terminal receives the channel measurement resources of port N and port M configured by the network device, which are associated. It can perform measurements based on the channel measurement resources of port N to determine the first channel information of port N, perform measurements based on the channel measurement resources of port M to determine the second channel information of port M, and determine the channel information of port N predicted by the second channel information of port M based on the first channel information of port N and the second channel information of port M. Based on the channel information of port N, it determines the channel state information (CSI) to be sent to the network device.

[0171] In some embodiments, the channel state information is a channel quality indicator (CQI) and / or a rank indication (RI).

[0172] In some embodiments, the channel measurement resources of the N-port and the channel measurement resources of the M-port are associated, including at least one of the following:

[0173] The channel measurement resources of port N and port M are associated with the same channel state information reporting configuration.

[0174] The resource identification information corresponding to the channel measurement resources of port N and the resource identification information corresponding to the channel measurement resources of port M are located in the same channel status information reporting configuration.

[0175] The channel state information reporting configuration identifier corresponding to either the channel measurement resource of port N or the channel measurement resource of port M is configured in the channel state information reporting configuration associated with the other.

[0176] In this embodiment of the disclosure, the channel measurement resources of port N and the channel measurement resources of port M are associated with the same channel state information reporting configuration (CSI report).

[0177] In some embodiments, the resource identification information includes at least one of a resource identifier (ID) and a resource set identifier (ID).

[0178] In this embodiment of the disclosure, the resource identifier corresponding to the channel measurement resource of port N and the resource identifier corresponding to the channel measurement resource of port M are located in the same channel state information reporting configuration (CSI report).

[0179] In this embodiment of the disclosure, the resource set identifier corresponding to the channel measurement resources of port N and the resource set identifier corresponding to the channel measurement resources of port M are located in the same channel state information reporting configuration (CSI report). Specifically, when the channel measurement resources of port N and the channel measurement resources of port M are located in the same resource set, the resource set identifier corresponding to the channel measurement resources of port N is the same as the resource set identifier corresponding to the channel measurement resources of port M.

[0180] In this embodiment of the disclosure, the channel state information reporting configuration identifier corresponding to either the channel measurement resource of port N or the channel measurement resource of port M is configured in the channel state information reporting configuration associated with the other.

[0181] For example, the channel state information reporting configuration identifier corresponding to the channel measurement resource of port N is configured in the channel state information reporting configuration associated with the channel measurement resource of port M.

[0182] For example, the channel state information reporting configuration identifier corresponding to the channel measurement resource of port M is configured in the channel state information reporting configuration associated with the channel measurement resource of port N.

[0183] In some embodiments, the terminal receives channel measurement resources for an N-port and a channel measurement resource for an M-port configured by a network device, including: receiving a first resource set configured by the network device, the first resource set including channel measurement resources for an N-port and channel measurement resources for an M-port, wherein the channel measurement resources for an N-port and the channel measurement resources for an M-port have the same bandwidth or frequency domain density; or receiving a second resource set and a third resource set configured by the network device, the second resource set including channel measurement resources for an N-port and the third resource set including channel measurement resources for an M-port, wherein the channel measurement resources for an N-port and the channel measurement resources for an M-port have different bandwidths or frequency domain densities.

[0184] In this embodiment of the present disclosure, the terminal receives a first resource set configured by the network device. The first resource set includes channel measurement resources for port N and channel measurement resources for port M, wherein the channel measurement resources for port N and port M have the same bandwidth or frequency domain density. Based on this, the terminal can determine the first channel information of port N and the second channel information of port M based on the channel measurement resources of port N and port M located in the same first resource set. Then, based on the first channel information of port N and the second channel information of port M, the terminal determines the channel information of port N predicted by the second channel information of port M, and determines the channel state information to be transmitted to the network device based on the channel information of port N.

[0185] In this embodiment, the terminal receives a second resource set and a third resource set configured by the network device. The second resource set includes channel measurement resources for port N, and the third resource set includes channel measurement resources for port M. Based on this, the terminal can determine first channel information for port N and second channel information for port M based on the channel measurement resources for port N and port M located in the same first resource set. Then, based on the first channel information for port N and the second channel information for port M, the terminal determines the channel information for port N predicted by the second channel information for port M, and determines the channel state information to be transmitted to the network device based on the channel information for port N. Optionally, the frequency domain density of the channel measurement resources for port N is less than the frequency domain density of the channel measurement resources for port M.

[0186] In some embodiments, the channel measurement resources of the N port and the channel measurement resources of the M port are spaced apart by a first duration in the time domain.

[0187] In some embodiments, the channel measurement resources of port N and port M configured by the network device for the terminal are spaced apart by a first time interval in the time domain. Specifically, the channel measurement resources of port N precede the channel measurement resources of port M.

[0188] In some embodiments, the first duration is one or more time slots. In some embodiments, the first duration is one or more orthogonal frequency-division multiplexing (OFDM) symbols.

[0189] In some embodiments, the terminal determines the first duration based on the configuration of the network device, or determines the first duration itself based on the implementation, or determines the first duration based on the protocol agreement.

[0190] In some embodiments, the channel measurement resources of the N port have the same quasi-co-address QCL relationship as the channel measurement resources of the M port.

[0191] In this embodiment of the disclosure, the channel measurement resources of the N port and the channel measurement resources of the M port have the same quasi-co-located (QCL) relationship, including at least one of the following: QCL Type A, QCL Type B, QCL Type C, QCL Type D, and QCL Type E.

[0192] Among them, QCL Type A: Doppler shift, Doppler spread, average delay, and delay spread.

[0193] QCL Type B: Doppler shift, Doppler spread.

[0194] QCL Type C: Doppler shift, average delay.

[0195] QCL TypeD: Spatial Rx parameter.

[0196] QCL type E: Spatial Tx parameter.

[0197] In some embodiments, the channel measurement resources of the N port and the channel measurement resources of the M port have the same power control factor; or the difference between the power control factor corresponding to the channel measurement resources of the N port and the power control factor corresponding to the channel measurement resources of the M port is less than a power threshold.

[0198] In this embodiment of the disclosure, when configuring the channel measurement resources of port N and port M of the network device, the power control factors of the channel measurement resources of port N and port M are configured independently, respectively. Optionally, the power control factors of the channel measurement resources of port N and port M are configured to be the same.

[0199] In this embodiment of the disclosure, the channel measurement resources of port N and port M have the same power control factor. The terminal can determine the power used to receive the channel state information reference signal based on the power control factor, which can ensure accurate reception of the channel state information reference signal, thereby making the measured channel state information more accurate.

[0200] In this embodiment of the disclosure, when configuring channel measurement resources for port N and port M of the network device, the power control factors for the channel measurement resources of port N and port M are configured independently, respectively. Optionally, the difference between the power control factor corresponding to the channel measurement resources of port N and port M is less than a power threshold.

[0201] In some embodiments, the terminal determines the power threshold based on the network device's configuration, or determines the power threshold itself based on its implementation, or determines the power threshold based on protocol agreements. In some embodiments, the network device determines the power threshold based on protocol agreements.

[0202] In some embodiments, the channel measurement resources of the N port are periodic resources, semi-persistent resources, or aperiodic resources; and / or the channel measurement resources of the M port are periodic resources, semi-persistent resources, or aperiodic resources.

[0203] In some embodiments, when the channel measurement resource of port N is a periodic resource, the network device configures the periodic information of the channel measurement resource of port N to the terminal; and / or when the channel measurement resource of port M is a periodic resource, the network device configures the periodic information of the channel measurement resource of port M to the terminal.

[0204] In this embodiment of the disclosure, the channel measurement resources of port N are periodic resources. Optionally, the terminal determines the periodic information of the channel measurement resources of port N based on the configuration of the network device, or based on the implementation, or based on the protocol agreement.

[0205] In this embodiment of the disclosure, the channel measurement resources of port M are periodic resources. Optionally, the terminal determines the periodic information of the channel measurement resources of port N based on the configuration of the network device, or determines the periodic information of the channel measurement resources of port M based on the implementation, or determines the periodic information of the channel measurement resources of port M based on the protocol agreement.

[0206] In this embodiment of the disclosure, when the channel measurement resource of port N is a semi-persistent resource or a non-periodic resource, the network device triggers the transmission of the channel measurement resource of port N to the terminal.

[0207] For example, the network device sends a trigger indication message to the terminal, instructing the network device to send the channel measurement resources of port N to the terminal, so that the terminal can receive the channel state information reference signal on the channel measurement resources of port N according to the trigger indication message sent by the network device.

[0208] In this embodiment of the disclosure, when the channel measurement resource of port M is a semi-persistent resource or a non-periodic resource, the network device triggers the transmission of the channel measurement resource of port M to the terminal.

[0209] For example, the network device sends a trigger indication message to the terminal, instructing the network device to send the channel measurement resources of port M to the terminal, so that the terminal can receive the channel state information reference signal on the channel measurement resources of port M according to the trigger indication message sent by the network device.

[0210] S202A, the network device sends the first instruction information to the terminal.

[0211] In some embodiments, the terminal receives first indication information sent by a network device, but is not limited thereto. The terminal may also receive first indication information sent by a subject other than the network device, in which case S202A may be omitted.

[0212] In some embodiments, the terminal obtains first indication information as specified by the protocol, in which case S202A can be omitted.

[0213] In some embodiments, the terminal obtains first indication information from the upper layer(s), in which case S202A can be omitted.

[0214] In some embodiments, the terminal processes the information to obtain the first instruction information, in which case S202A can be omitted.

[0215] In some embodiments, the terminal autonomously implements the function indicated by the first instruction information, or the above function is a default or default value, in which case S202A can be omitted.

[0216] In some embodiments, the order of S201A and S202A can be interchanged, for example, S202A is executed first and S201A is executed later.

[0217] In some embodiments, the first indication information is used to indicate the port configuration of the M port corresponding to the channel measurement resources of the M port.

[0218] In some embodiments, the first indication information is used to indicate the port configuration of one M-port corresponding to the channel measurement resources of one M-port, or to indicate the port configuration of multiple M-ports corresponding to the channel measurement resources of multiple M-ports, where M is a positive integer less than N, and N is the number of antenna ports of the network device. It should be noted that M-ports can also be referred to as M ports or antenna ports of some network devices, and the port configuration of M-ports is equivalent to the port configuration of M ports.

[0219] For example, the number of antenna ports N of the network device is 256 and M is 64. The first indication information is used to indicate the port configuration of the four 64 ports, wherein the antenna ports of the network device are 0 to 255, the port configuration of the first 64 port indicates ports 0 to 63, the port configuration of the second 64 port indicates ports 64 to 127, the port configuration of the third 64 port indicates ports 128 to 191, and the port configuration of the fourth 64 port indicates ports 192 to 255.

[0220] For example, the number of antenna ports N of the network device is 128 and M is 64. The first indication information is used to indicate the port configuration of the two 64 ports, wherein the antenna ports of the network device are 0 to 127, the port configuration of the first 64 port indicates ports 0 to 63, and the port configuration of the second 64 port indicates ports 64 to 127.

[0221] In some embodiments, the ports of the multiple M ports are configured with multiple different spatial (port) patterns.

[0222] In some embodiments, the first indication information is used to indicate multiple different spatial (port) patterns, wherein each spatial pattern corresponds to a port configuration of an M port. Optionally, different spatial patterns are used to indicate that the network device uses different M ports among the N ports to transmit reference signals (e.g., channel state information reference signals).

[0223] In some embodiments, the network device may independently determine to send the first indication information to the terminal, or send the first indication information to the terminal when it determines that the terminal needs to perform channel measurement, or determine to send the first indication information to the terminal based on the protocol agreement.

[0224] In some embodiments, the network device reuses existing signaling or messages to send first indication information to the terminal, such as radio resource control (RRC), medium access control control element (MAC CE), or downlink control information (DCI). In some embodiments, the network device uses new signaling or messages to send the first indication information to the terminal.

[0225] In some embodiments, the terminal receives first indication information sent by the network device to determine the port configuration of the M port corresponding to the channel measurement resources of the M port.

[0226] S203A: The terminal performs channel estimation and measurement based on the channel measurement resources of the N port and the M port to determine the channel state information.

[0227] In this embodiment of the disclosure, the terminal receives the channel measurement resources of port N and port M configured by the network device, performs channel estimation and measurement based on the channel measurement resources of port N and port M, and determines the channel state information.

[0228] In some embodiments, the channel measurement resources of port N are located before the channel measurement resources of port M in the time domain. When the terminal determines at least one of the association between the channel measurement resources of port N and the channel measurement resources of port M, the association between transmission time, and the configuration constraint relationship, it can perform channel estimation and measurement based on the channel measurement resources of port N and the channel measurement resources of port M to determine the channel state information.

[0229] S204A, the terminal sends channel status information to the network device.

[0230] In some embodiments, the network device receives channel state information sent by the terminal, but is not limited thereto. The network device may also receive channel state information sent by other entities other than the terminal, in which case S204A can be omitted.

[0231] In some embodiments, the network device obtains channel state information as specified by the protocol, in which case S204A can be omitted.

[0232] In some embodiments, the network device obtains channel state information from a higher layer, in which case S204A can be omitted.

[0233] In some embodiments, the network device processes the information to obtain channel state information, in which case S204A can be omitted.

[0234] In some embodiments, the network device autonomously implements the functions indicated by the channel state information, or the above functions are default or default, in which case S204A can be omitted.

[0235] In this embodiment of the disclosure, after the terminal determines the channel state information, it sends the channel state information to the network device.

[0236] In some embodiments, channel state information is used by a network device to determine whether to send a reference signal for the N port to a terminal based on the channel measurement resources of the N port.

[0237] In some embodiments, channel state information is used by a network device to determine whether to send a reference signal for the M port to a terminal based on the channel measurement resources of the M port.

[0238] In some embodiments, channel state information is used by a network device to determine whether to send a reference signal for port N to a terminal based on the channel measurement resources of port N and whether to send a reference signal for port M to a terminal based on the channel measurement resources of port M.

[0239] S205A: The network device determines, based on channel state information, whether to send the N-port reference signal to the terminal based on the channel measurement resources of the N-port, and / or whether to send the M-port reference signal to the terminal based on the channel measurement resources of the M-port.

[0240] In this embodiment of the disclosure, the network device receives channel state information sent by the terminal and can determine whether to send a reference signal of port N to the terminal based on the channel measurement resources of port N, and / or whether to send a reference signal of port M to the terminal based on the channel measurement resources of port M.

[0241] In some embodiments, the network device determines whether to send an N-port channel state information reference signal to the terminal based on the N-port channel measurement resources, and / or whether to send an M-port channel state information reference signal to the terminal based on the M-port channel measurement resources.

[0242] By implementing the embodiments of this disclosure, the terminal receives channel measurement resources for all ports and some ports configured by the network device, enabling the terminal to determine the channel information of all ports based on the channel measurement resources of some ports, thereby reducing the overhead of channel measurement resources and improving the performance of the communication system.

[0243] In some embodiments, the names of information, etc., are not limited to the names described in the embodiments. Terms such as "information", "message", "signal", "signaling", "report", "configuration", "indication", "instruction", "command", "channel", "parameter", "domain", "field", "symbol", "symbol", "codebook", "codeword", "codepoint", "bit", "data", "program", and "chip" can be used interchangeably.

[0244] In some embodiments, the terms "uplink", "uplink", and "physical uplink" can be used interchangeably, as can the terms "downlink", "downlink", and "physical downlink", as well as the terms "sidelink", "sidelink", "sidelink communication", "sidelink communication", "direct connection", "direct link", "direct communication", and "direct link communication".

[0245] In some embodiments, the terms “downlink control information (DCI),” “downlink (DL) assignment,” “DL DCI,” “uplink (UL) grant,” and “UL DCI” can be used interchangeably.

[0246] In some embodiments, terms such as “moment,” “point in time,” “time,” and “time location” can be used interchangeably, as can terms such as “duration,” “segment,” “time window,” “window,” and “time.”

[0247] In some embodiments, the terms “resource block (RB)”, “physical resource block (PRB)”, “sub-carrier group (SCG)”, “resource element group (REG)”, “PRB pair”, “RB pair”, “resource element (RE)”, and “sub-carrier” can be used interchangeably.

[0248] In some embodiments, the terms "precoding", "precoder", "weight", "precoding weight", "quasi-co-location (QCL)", "transmission configuration indication (TCI) status", "spatial relation", "spatial domain filter", "transmission power", "phase rotation", "antenna port", "antenna port group", "layer", "the number of layers", "rank", "resource", "resource set", "resource group", "beam", "beam width", "beam angular degree", "antenna", "antenna element", and "panel" can be used interchangeably.

[0249] In some embodiments, the terms “frame”, “radio frame”, “subframe”, “slot”, “sub-slot”, “mini-slot”, “symbol”, “symbol”, and “transmission time interval (TTI)” can be used interchangeably.

[0250] In some embodiments, "acquire," "get," "obtain," "receive," "transmit," "bidirectional transmission," and "send and / or receive" can be used interchangeably and can be interpreted as receiving from other entities, acquiring from protocols, acquiring from higher layers, obtaining through self-processing, or autonomous implementation. Protocols include, for example, at least one of the 3GPP protocol, Wi-Fi protocol, and audio and video protocols.

[0251] In some embodiments, terms such as “send,” “transmit,” “report,” “distribute,” “transfer,” “bidirectional transmission,” “send and / or receive” can be used interchangeably.

[0252] In some embodiments, terms such as "certain," "preset," "default," "set," "indicated," "a certain," "any," and "first" can be used interchangeably. "Certain A," "preset A," "default A," "set A," "indicated A," "a certain A," "any A," and "first A" can be interpreted as A pre-defined in a protocol or the like, or as A obtained through setting, configuration, or instruction, or as specific A, a certain A, any A, or first A, but are not limited thereto.

[0253] In some embodiments, the determination or judgment can be made by a value represented by 1 bit (0 or 1), or by a true or false value (boolean), or by a comparison of numerical values ​​(e.g., a comparison with a predetermined value), but is not limited thereto.

[0254] The communication method involved in the embodiments of this disclosure may include at least one of S201A to S205A. For example, S201A, S202A, S203A, S204A, S205A, S201A+S203A, S201A+S202A+S203A, S203A+S204A, and S203A+S204A+S205A may be implemented as independent embodiments, but are not limited thereto.

[0255] In some embodiments, the order of S201A and S202A can be interchanged.

[0256] In some embodiments, S202A, S203A, S204A, and S205A are optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0257] In some embodiments, S202A, S204A, and S205A are optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0258] In some embodiments, S204A and S205A are optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0259] In some embodiments, S202A is optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0260] 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.

[0261] Figure 2B is an interactive schematic diagram illustrating a channel measurement method according to an embodiment of the present disclosure. As shown in Figure 2B, the present disclosure relates to a channel measurement method, which includes:

[0262] S201B, the network device sends a second instruction message to the terminal.

[0263] In some embodiments, the terminal receives second indication information sent by a network device, but is not limited thereto. The terminal may also receive second indication information sent by other entities other than the network device, in which case S201B may be omitted.

[0264] In some embodiments, the terminal obtains second indication information specified by the protocol, in which case S201B can be omitted.

[0265] In some embodiments, the terminal obtains second instruction information from a higher layer, in which case S201B can be omitted.

[0266] In some embodiments, the terminal processes the information to obtain the second instruction information, in which case S201B can be omitted.

[0267] In some embodiments, the terminal autonomously implements the function indicated by the second instruction information, or the above function is a default or default value, in which case S201B can be omitted.

[0268] In some embodiments, the second indication information is used to indicate the port configuration of multiple M ports, where M is a positive integer less than N, and N is the number of antenna ports of the network device. It should be noted that M ports can also be referred to as M ports or partial antenna ports of the network device, and the port configuration of M ports is equivalent to the port configuration of M ports.

[0269] In some embodiments, the second indication information is used to indicate the port configuration of a plurality of ports, not all ports.

[0270] In some embodiments, the second indication information is used to indicate the port configuration of a portion of the plurality of all ports.

[0271] For example, the number of antenna ports N of the network device is 256 and M is 64. The second indication information is used to indicate the port configuration of the four 64 ports, wherein the antenna ports of the network device are 0 to 255, the port configuration of the first 64 port indicates ports 0 to 63, the port configuration of the second 64 port indicates ports 64 to 127, the port configuration of the third 64 port indicates ports 128 to 191, and the port configuration of the fourth 64 port indicates ports 192 to 255.

[0272] For example, the number of antenna ports N of the network device is 128 and M is 64. The second indication information is used to indicate the port configuration of the two 64 ports, wherein the antenna ports of the network device are 0 to 127, the port configuration of the first 64 port indicates ports 0 to 63, and the port configuration of the second 64 port indicates ports 64 to 127.

[0273] In some embodiments, the ports of the multiple M ports are configured with multiple different spatial (port) patterns.

[0274] In some embodiments, the second indication information is used to indicate multiple different spatial (port) patterns, wherein each spatial pattern corresponds to a port configuration of an M port. Optionally, different spatial patterns are used to instruct network devices to use different M ports among the N ports to transmit channel state information reference signals.

[0275] In some embodiments, the network device may independently determine to send the second indication information to the terminal, or send the second indication information to the terminal when it determines that the terminal needs to perform channel measurement, or determine to send the second indication information to the terminal based on the protocol agreement.

[0276] In some embodiments, the network device reuses existing signaling or messages to send second indication information to the terminal, such as radio resource control (RRC), medium access control control element (MAC CE), or downlink control information (DCI). In some embodiments, the network device uses new signaling or messages to send second indication information to the terminal.

[0277] In some embodiments, the terminal receives second indication information sent by the network device to determine the port configuration of a plurality of M ports, and further indicates the port configuration of at least one of the M ports to the network device, so that the network device can determine to configure the channel measurement resources of the M ports determined according to the port configuration of the M ports indicated by the terminal to the terminal.

[0278] In some embodiments, channel measurement resources include channel state information reference signal (CSI-RS) resources, sounding reference signal (SRS) resources, etc.

[0279] S202B: The terminal sends a request message to the network device.

[0280] In some embodiments, the network device receives a request message sent by a terminal, but is not limited thereto. The network device may also receive a request message sent by a subject other than the terminal, in which case S202B may be omitted.

[0281] In some embodiments, the network device obtains a request message defined by the protocol, in which case S202B can be omitted.

[0282] In some embodiments, the network device obtains the request message from a higher layer, in which case S202B can be omitted.

[0283] In some embodiments, the network device processes the request message to obtain the request message, in which case S202B can be omitted.

[0284] In some embodiments, the network device autonomously implements the function indicated by the request message, or the above function is a default or default value, in which case S202B can be omitted.

[0285] In some embodiments, the terminal sends a request message to the network device when it determines that channel measurement is required.

[0286] In some embodiments, the terminal sends a request message to the network device on its own, or sends a request message to the network device based on the network device's instruction, or sends a request message to the network device based on the protocol agreement.

[0287] For example, when a terminal determines on its own or based on a protocol agreement that channel measurement is required, it sends a request message to the network device.

[0288] For example, upon receiving the second instruction information sent by the network device in S201B, the terminal sends a request message to the network device.

[0289] In some embodiments, the request message is used to request the network device to perform at least one of the following: configure the channel measurement resources of port N; configure the channel measurement resources of port M.

[0290] In this embodiment of the disclosure, the request message is used to request the network device to configure channel measurement resources for N ports for the terminal. It should be noted that N ports can also be referred to as N ports, the antenna ports of all network devices, and the channel measurement resources for N ports are equivalent to the channel measurement resources for N ports.

[0291] In this embodiment of the disclosure, the request message is used to request the network device to configure channel measurement resources for the M port of the terminal.

[0292] In this embodiment of the disclosure, the request message is used to request the network device to stop configuring the channel measurement resources of port N for the terminal.

[0293] In this embodiment of the disclosure, the request message is used to request the network device to stop configuring the channel measurement resources of port M for the terminal.

[0294] In some embodiments, when the terminal receives the second indication information sent by the network device in S201B, it sends a request message to the network device. The request message is also used to indicate one or more port configurations among the port configurations of a plurality of M ports.

[0295] For example, the network device has 256 antenna ports N and 64 ports M. The second indication information indicates the port configuration of the four 64-ports, where the network device's antenna ports are 0 to 255, the first 64-port configuration indicates ports 0 to 63, the second 64-port configuration indicates ports 64 to 127, the third 64-port configuration indicates ports 128 to 191, and the fourth 64-port configuration indicates ports 192 to 255. The request message sent by the terminal indicates the port configuration of the first 64-port, or indicates the port configuration of both the first and fourth 64-ports.

[0296] For example, the network device has 128 antenna ports N and 64 ports M. The second indication information indicates the port configuration of the two 64-ports, where the network device's antenna ports are designated as 0 to 127. The port configuration of the first 64-port indicates ports 0 to 63, and the port configuration of the second 64-port indicates ports 64 to 127. The request message sent by the terminal indicates the port configuration of the first 64-port, or indicates the port configuration of both the first and second 64-ports.

[0297] In some embodiments, when the terminal receives the second indication information sent by the network device in S201B, it sends a request message to the network device. The request message is used to request the network device to configure the channel measurement resources of the M port. The request message is also used to indicate one or more port configurations among the port configurations of multiple M ports.

[0298] In some embodiments, if S201B is omitted, the terminal actively sends a request message to the network device.

[0299] In some embodiments, when the request message is used to request the network device to perform channel measurement resources for the M port, the terminal sends the request message to the network device, including: determining that the channel information obtained based on the channel measurement resources of the N port and the channel measurement resources of the M port meets a threshold condition, and then sending the request message to the network device.

[0300] In this embodiment of the disclosure, when the terminal determines that the channel information obtained based on the channel measurement resources of port N and port M meets the threshold condition, it sends a request message to the network device. The request message is used to request the network device to configure the channel measurement resources of port M.

[0301] In some embodiments, the threshold condition is that the channel information obtained based on the channel measurement resources of the N-port and the M-port is within an acceptable performance metric. For example, the threshold condition is that the difference between the channel information obtained based on the channel measurement resources of the N-port and the M-port and the channel information obtained directly based on the channel measurement resources of the N-port is less than a first threshold.

[0302] In some embodiments, the channel information is downlink channel information. In some embodiments, the channel information is channel information of the channel from the network device to the terminal.

[0303] In some embodiments, the terminal determines the threshold conditions based on the configuration of the network device, or determines the threshold conditions itself based on the implementation, or determines the threshold conditions based on the protocol agreement.

[0304] S203B, the network device configures the channel measurement resources of the N port and the M port to the terminal.

[0305] The optional implementation of S203B can be found in the optional implementation of S201A in Figure 2A and other related parts in the embodiments involved in Figure 2A, which will not be repeated here.

[0306] In this embodiment of the disclosure, when a network device receives a request message sent by a terminal to indicate one or more port configurations among a plurality of M ports, the M port corresponding to the channel measurement resource of an M port configured by the network device for the terminal can be any one of the port configurations indicated by the request message.

[0307] In this embodiment of the disclosure, when the network device receives a request message sent by the terminal to indicate one of the port configurations of multiple M ports, the M port corresponding to the channel measurement resources of the multiple M ports configured by the network device to the terminal can be the M port indicated by the port configuration of the request message.

[0308] In this embodiment of the disclosure, when the network device receives a request message sent by the terminal to indicate multiple port configurations in the port configuration of multiple M ports, the M ports corresponding to the channel measurement resources of the multiple M ports configured by the network device to the terminal can be one or more of the multiple port configurations indicated by the request message.

[0309] S204B: The terminal performs channel estimation and measurement based on the channel measurement resources of the N port and the M port to determine the channel state information.

[0310] The optional implementation of 204B can be found in the optional implementation of S203A in Figure 2A and other related parts in the embodiments involved in Figure 2A, which will not be repeated here.

[0311] S205B: The terminal sends channel status information to the network device.

[0312] The optional implementation of 205B can be found in the optional implementation of S204A in Figure 2A and other related parts in the embodiments involved in Figure 2A, which will not be repeated here.

[0313] S206B, the network device determines, based on channel state information, whether to send the N-port reference signal to the terminal based on the channel measurement resources of the N-port, and / or whether to send the M-port reference signal to the terminal based on the channel measurement resources of the M-port.

[0314] The optional implementation of 206B can be found in the optional implementation of S205A in Figure 2A and other related parts in the embodiments involved in Figure 2A, which will not be repeated here.

[0315] Exemplary embodiments are provided to facilitate understanding of the embodiments disclosed herein.

[0316] In an exemplary embodiment, the network device configures two CSI-RS resource sets for the terminal. The first CSI-RS resource set contains I1 = 1 J 1,i The first resource set contains 32 CSI-RS resources with a frequency domain density of 1. One resource in this first resource set is used to measure channel information at an antenna port with M=32. The second resource set contains I²=2 J... 1,iThe first resource set contains 32 CSI-RS resources with a frequency density of 0.5. Two resources in this second CSI-RS resource set are used to measure channel information for antenna ports with N=64. These two resource sets correspond to different CSI-RS resource configuration IDs, and these two CSI-RS resource configuration IDs are configured in the same channel state information reporting configuration (CSI-ReportConfig). In other words, these two resource sets are associated with the same channel state information reporting configuration (CSI report).

[0317] Assuming that the CSI-RS resources of port N and port M are both aperiodic, the network device triggers the transmission of each CSI-RS resource in the second resource set via DCI signaling. The terminal estimates the downlink channel information based on the CSI-RS resources of port N (note: this represents one or more CSI-RS resources constituting port N), performs CSI measurement, and reports the measured CSI to the network device. If X = 5 transmissions of the CSI-RS resources of port N are performed, the terminal calculates the average R value of these five transmissions. Then, the network device triggers the transmission of the CSI-RS resources of port M in the first resource set via DCI. The terminal can calculate the channel information of port NM according to formulas (1) and (2), thereby recovering the channel information of port N.

[0318] The terminal receives the CSI-RS resources of port N and port M configured by the network device.

[0319] The terminal measures the downlink channel information H based on the received CSI-RS resources of port N. N , can be obtained Divide R into two parts:

[0320] Among them, R 2,2 R represents the channel covariance matrix of CSI-RS resource measurements based on the M-port. 1,2 This represents the channel cross-covariance matrix of the unknown NM ports and M ports.

[0321] The terminal measures downlink channel information H based on the received M-port CSI-RS resources. M The channel information of the NM port can be estimated using the following formula:

[0322] Therefore, H cannot be obtained on the terminal side based on the CSI-RS resources of the N port. N Channel H can be estimated based on the CSI-RS resources of port M. M And H calculated according to formula (2) N-M Obtain downlink channel information for N ports.

[0323] In another exemplary embodiment, assume the network device is configured with a resource set containing two periodic CSI-RS resources. One resource is used to measure channel information at port M, and the other two resources are used to measure channel information at port N. The network device first sends the CSI-RS resource for port N. The terminal estimates the channel information at port N and obtains the statistical channel information R. Then, it uses the channel information estimated from the CSI-RS resource for port M to recover the channel information H' at port N. The terminal compares the recovered port N information H' with the channel information H measured based on the CSI-RS resource for port N to determine whether the network device needs to send the resource for port M. The criterion for this judgment may require the network device to send or predefine corresponding performance metrics, which the terminal then uses to make its judgment.

[0324] If the terminal determines that the current channel information based on port M can recover the channel information on port N that meets the performance requirements, it sends a request message to the network device. This request can be initiated via Layer 1 (L1) or Layer 3 (L3) signaling. The request message includes instructions for the network device to send the channel information for port M. If the terminal determines that the channel information recovered based on port M is inaccurate, the request message instructs the network device to send the channel information for port N.

[0325] Optionally, the network device transmits CSI-RS resources for port N and port M respectively. The terminal calculates RI_1 and CQI_1 based on the channel information estimated from the CSI-RS resources for port N, and reports the rank indication (RI) / channel quality indicator (CQI) to the network device. The terminal first recovers the channel information for port N based on the estimated channel information for port M, and then measures and calculates CQI_2 based on RI_2 and reports it to the network device. Note that RI_1, CQI_1, RI_2, and CQI_2 can be reported in a single CSI report or separately in two CSI reports. The network device determines whether to transmit CSI-RS resources for port N or port M based on the received RI_1, CQI_1, RI_2, and CQI_2.

[0326] In another exemplary embodiment, it is assumed that the network device is configured with one or two resource sets, as described in the two exemplary embodiments above, except that the bandwidth occupied by the CSI-RS resource of port N is less than that of the CSI-RS resource of port M. The terminal still obtains the channel statistical characteristics R based on the CSI-RS resource of port N. Since the spatial correlation between ports in different frequency domain units such as subbands or PRBs remains almost unchanged, the terminal can use the obtained R and the channel information of port M to calculate the channel information of port NM through the above formulas (1) and (2), thereby recovering the channel information of port N on the remaining bandwidth other than the transmission bandwidth of port N resource.

[0327] The frequency and time domain locations of the N port and the M port can be determined through configured time-frequency resource mapping. The bandwidth of the N port and the M port can also be determined through network device configuration or predefined methods.

[0328] By implementing the embodiments of this disclosure, the terminal receives channel measurement resources for all ports and some ports configured by the network device, enabling the terminal to determine the channel information of all ports based on the channel measurement resources of some ports, thereby reducing the overhead of channel measurement resources and improving the performance of the communication system.

[0329] The communication method involved in the embodiments of this disclosure may include at least one of S201B to S206B. For example, S201B may be implemented as a standalone embodiment, S202B may be implemented as a standalone embodiment, S203B may be implemented as a standalone embodiment, S204B may be implemented as a standalone embodiment, S205B may be implemented as a standalone embodiment, S206 may be implemented as a standalone embodiment, S202B+S203B may be implemented as a standalone embodiment, S201B+S202B+S203B may be implemented as a standalone embodiment, S203B+S204B may be implemented as a standalone embodiment, and S203B+S204B+S205B+S206B may be implemented as a standalone embodiment, but is not limited thereto.

[0330] In some embodiments, S201B, S202B, S204B, S205B, and S206B are optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0331] In some embodiments, S201B, S204B, S205B, and S206B are optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0332] In some embodiments, S204B, S205B, and S206B are optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0333] In some embodiments, S201B and S202B are optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0334] 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.

[0335] Figure 4 is an interactive schematic diagram illustrating a channel measurement method according to an embodiment of the present disclosure. As shown in Figure 4, the present disclosure relates to a channel measurement method, which includes:

[0336] S401, the network device configures the channel measurement resources of port N and port M to the terminal.

[0337] Where N is the number of antenna ports of the network device, and M is a positive integer less than N.

[0338] The optional implementation of S401 can be found in the optional implementation of S201A in Figure 2A and other related parts in the embodiments involved in Figure 2A, which will not be repeated here.

[0339] The optional implementation of S401 can be found in the optional implementation of S203B in Figure 2B and other related parts in the embodiments involved in Figure 2B, which will not be repeated here.

[0340] In some embodiments, the channel measurement resources of the N-port are located before the channel measurement resources of the M-port in the time domain; and / or among the channel measurement resources of the plurality of N-ports, at least one channel measurement resource of the N-port is located before the channel measurement resources of the M-port in the time domain; and / or the channel measurement resources of the N-port are different from the channel measurement resources of the M-port in the frequency domain.

[0341] In some embodiments, the channel measurement resources of the N port and the channel measurement resources of the M port are used by the terminal to perform measurements based on the channel measurement resources of the N port to determine the first channel information of the N port, to perform measurements based on the channel measurement resources of the M port to determine the second channel information of the M port, and to determine the channel information of the N port predicted by the second channel information of the M port based on the first channel information of the N port and the second channel information of the M port.

[0342] In some embodiments, the channel measurement resources of port M include a plurality of first resources with the same number of ports or different numbers of ports, the sum of the number of ports corresponding to the plurality of first resources being equal to M; and / or the channel measurement resources of port N include a plurality of second resources with the same number of ports or different numbers of ports, the sum of the number of ports corresponding to the plurality of second resources being equal to N.

[0343] In some embodiments, the channel measurement resources of port N and the channel measurement resources of port M are associated, wherein the associated channel measurement resources of port N and port M are used by the terminal to perform measurements based on the channel measurement resources of port N to determine the first channel information of port N, to perform measurements based on the channel measurement resources of port M to determine the second channel information of port M, and to determine the channel information of port N predicted by the second channel information of port M based on the first channel information of port N and the second channel information of port M, and to determine the channel state information to be transmitted to the network device based on the channel information of port N.

[0344] In some embodiments, the channel measurement resources of port N and the channel measurement resources of port M are associated, including at least one of the following: the channel measurement resources of port N and the channel measurement resources of port M are associated with the same channel state information reporting configuration; the resource identification information corresponding to the channel measurement resources of port N and the resource identification information corresponding to the channel measurement resources of port M are located in the same channel state information reporting configuration; the channel state information reporting configuration identifier corresponding to either the channel measurement resources of port N or the channel measurement resources of port M is configured in the channel state information reporting configuration associated with the other.

[0345] In some embodiments, the terminal receives channel measurement resources for an N-port and a channel measurement resource for an M-port configured by a network device, including: receiving a first resource set configured by the network device, the first resource set including channel measurement resources for an N-port and channel measurement resources for an M-port, wherein the channel measurement resources for an N-port and the channel measurement resources for an M-port have the same bandwidth or frequency domain density; or receiving a second resource set and a third resource set configured by the network device, the second resource set including channel measurement resources for an N-port and the third resource set including channel measurement resources for an M-port, wherein the channel measurement resources for an N-port and the channel measurement resources for an M-port have different bandwidths or frequency domain densities.

[0346] In some embodiments, the channel measurement resources of the N port and the channel measurement resources of the M port are spaced apart by a first duration in the time domain.

[0347] In some embodiments, the channel measurement resources of the N port have the same quasi-co-address QCL relationship as the channel measurement resources of the M port.

[0348] In some embodiments, the channel measurement resources of the N port and the channel measurement resources of the M port have the same power control factor; or the difference between the power control factor corresponding to the channel measurement resources of the N port and the power control factor corresponding to the channel measurement resources of the M port is less than a power threshold.

[0349] In some embodiments, the channel measurement resources of the N port are periodic resources, semi-persistent resources, or aperiodic resources; and / or the channel measurement resources of the M port are periodic resources, semi-persistent resources, or aperiodic resources.

[0350] In some embodiments, the method further includes: when the channel measurement resource of port N is a periodic resource, the network device configures the periodic information of the channel measurement resource of port N to the terminal; and / or when the channel measurement resource of port M is a periodic resource, the network device configures the periodic information of the channel measurement resource of port M to the terminal.

[0351] In some embodiments, the method further includes: the terminal sending a request message to the network device, wherein the request message is used to request the network device to perform at least one of the following: configuring channel measurement resources for port N; configuring channel measurement resources for port M.

[0352] In some embodiments, the request message is used to request a network device to configure channel measurement resources for an M port. The method further includes: a terminal receiving indication information sent by the network device, wherein the indication information is used to indicate port configurations of a plurality of M ports, and the request message is also used to indicate one or more port configurations among the port configurations of the plurality of M ports.

[0353] In some embodiments, when the request message is used to request the network device to configure the channel measurement resources of port M, the terminal sends the request message to the network device, including: determining that the channel information obtained based on the channel measurement resources of port N and the channel measurement resources of port M meets a threshold condition, and then sending the request message to the network device.

[0354] In some embodiments, the method further includes: the terminal performing channel estimation and measurement based on the channel measurement resources of the N port and the channel measurement resources of the M port to determine channel state information; and sending the channel state information to the network device, wherein the channel state information is used by the network device to determine whether to send a reference signal of the N port to the terminal based on the channel measurement resources of the N port, and / or whether to send a reference signal of the M port to the terminal based on the channel measurement resources of the M port.

[0355] 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.

[0356] To facilitate understanding of the embodiments of this disclosure, an exemplary embodiment is provided.

[0357] In an exemplary embodiment, a CSI-RS resource configuration method for reducing CSI-RS resource overhead is proposed.

[0358] To further improve system efficiency or enhance coverage, increasing the number of antenna ports to expand the antenna scale is a key technical approach. Related technologies can further increase the antenna scale to four or eight times its original size. For example, it may be necessary to support 128 or 256 CSI-RS ports to achieve channel measurement on 128 or 256 antenna ports. To obtain downlink channel information for up to 128 or 256 ports, the network device (NW) needs to configure CSI-RS resources occupying 128 or 256 resource elements (REs). This results in CSI-RS resources consuming significant system resources, increasing CSI-RS signaling overhead, and impacting system spectral efficiency. Therefore, how to reduce CSI-RS resource overhead while obtaining reliable downlink channel information is a problem to be solved.

[0359] In some embodiments, the terminal (UE) estimates the downlink channel information of a portion of the ports based on the NW configuration using fewer CSI-RS resources. The obtained partial port information is then input into an artificial intelligence (AI) or machine learning (ML) model. The AI / ML model then infers the channel information for all antenna ports. This method can utilize the correlation between the corresponding channel information of antenna ports to recover the channel information of all antenna ports based on the channel information of a portion of the antenna ports using an AI / ML model.

[0360] In some embodiments, the channel information of all antenna ports is obtained by using the CSI-RS resources of K M ports respectively, and then the channel information of some antenna ports is measured by L resources out of the K resources, wherein the L CSI-RS resources are transmitted with a small period, as shown in Figure 5.

[0361] In some embodiments, CSI-RS resources containing all antenna ports are transmitted at a longer interval and CSI-RS resources containing a portion of the antenna ports are transmitted at a shorter interval. The UE then obtains the channel information for all antenna ports using the Wiener filtering algorithm based on the channel information of the portion of the antenna ports.

[0362] Wherein, the method for recovering channel information of all antenna ports through an AI / ML model based on channel information of partial antenna ports requires UE to deploy a CSI-RS-based channel estimation AI / ML model, that is, requires UE to support AI / ML model inference capability. Otherwise, UE cannot obtain channel information of all antenna ports only based on channel information estimated from partial CSI-RS ports.

[0363] In the method where K CSI-RS resources of M ports are used to obtain channel information of all antenna ports, and then channel information of partial antenna ports is measured through L resources among the K resources, it is limited that the K resources and M resources have the same time domain behavior. How to configure the CSI-RS resources for all ports and the CSI-RS resources for partial ports, so that UE can accurately obtain channel information of all ports based on channel information of partial ports is a problem to be solved.

[0364] Embodiments of the present disclosure propose that UE first acquires channel correlation information between antenna ports by using a configured channel measurement resource for all antenna ports. Thereafter, UE can obtain channel information of all antenna ports through a traditional filtering estimation algorithm based on the partial-port channel measurement resource measured by the partial-port channel measurement resource configured by NW, thereby reducing signaling overhead of channel measurement resources.

[0365] In some embodiments, it is defined that the network configures the association relationship between the channel measurement resource with the total number of antenna ports and the channel measurement resource with the partial number of antenna ports, the association relationship between transmission times, and the configuration constraint relationship between these two types of resources, and transmits the channel measurement resource with the total number of antenna ports and the channel measurement resource with the partial number of antenna ports respectively based on a request from a terminal and / or network configuration. The terminal acquires channel information of all antenna ports by using channel information measured by the channel measurement resource for partial antenna ports.

[0366] Assume that the number of antenna ports on the NW side is N, and the channel measurement resource is a CSI-RS resource.

[0367] Behavior on the NW side: 1. NW configures an N-port CSI-RS resource and an M-port CSI-RS resource, where M<N, the M-port CSI-RS resource includes I1 J 1,i port CSI-RS resources, where 1≤I1, i=1,…,I1, i=1,…,I1, the number of ports of the I1 resources may be equal or unequal. The N-port resource includes I2 J 2,i port CSI-RS resources, where 1≤I2, port CSI-RS resources, i=1,…,I2, the number of ports of the I2 resources may be equal or unequal. J 1,i and J 1,jThe values ​​can be equal or unequal.

[0368] 2.1 The CSI-RS resources of port M and port N mentioned above are associated with the same CSI report. The CSI-RS resources of port M and port N come from the same or different CSI-RS resource sets. If they come from different CSI-RS resource sets, the CSI-RS bandwidth or frequency domain density of port N is different from that of port M, such as the frequency domain density of port M being greater than that of port N.

[0369] 3. The transmission association between the CSI-RS resources of port M and port N of the measurement channel information:

[0370] Alt1: The CSI-RS resource of port M is associated with the CSI-RS resource of port N in the most recent X transmissions before this resource transmission, where 1 ≤ X.

[0371] Alt2: The interval K between the CSI-RS resource on port M and the associated CSI-RS resource on port N is determined by NW configuration or predefined. The CSI-RS resource on port N is transmitted before the CSI-RS resource on port M.

[0372] Alt3: After receiving the request signaling from the UE, the NW triggers the transmission of CSI-RS resources on port M. The request signaling instructs the NW to transmit CSI-RS resources on port M and to stop transmitting CSI-RS resources on port N. Optionally, the UE sends a request signaling instructing the NW to transmit CSI-RS resources on port N, as shown in Figure 3A.

[0373] Alt4:NW sends CSI-RS resources for both port N and port M respectively, and then determines whether to continue sending CSI-RS resources for port N or port M based on the UE's CSI (such as CQI).

[0374] Alt5: At the same time or within the same burst, NW transmits CSI-RS resources on port N and port M. That is, CSI-RS resources on port N are transmitted on a small portion of the PRBs within the entire bandwidth, while CSI-RS resources on port M are transmitted on the remaining larger PRBs. As shown in Figure 3B.

[0375] 4.1 The CSI-RS resources of port M and port N are configured with the same QCL relationship. The power control factors of the CSI-RS resources of port M and port N are configured independently or with equal power control factors.

[0376] The CSI-RS resources on port M and port N mentioned in section 5.1 can be periodic, semi-persistent, or aperiodic CSI-RS resources, respectively. The period of the CSI-RS resources on port M and port N is configured by the NW. For semi-persistent or aperiodic resources, the transmission is triggered by the NW side. Optionally, the NW side configures or transmits the CSI-RS resources on port N or port M after receiving the request signaling sent by the UE.

[0377] UE-side behavior:

[0378] 1. The UE receives the CSI-RS resources of the N port and the M port configured by the NW.

[0379] 2. The UE measures the downlink channel information as H based on the received N-port CSI-RS resources. N , can be obtained Divide R into two parts

[0380] Among them, R 2,2 R represents the channel covariance matrix of CSI-RS resource measurements based on the M-port. 1,2 This represents the channel cross-covariance matrix of the unknown NM ports and M ports.

[0381] 3. The UE measures the downlink channel information for H based on the received M-port CSI-RS resources. M The channel information of the NM port can be estimated using the following formula:

[0382] Therefore, the UE cannot obtain H based on the CSI-RS resources of the N port. N Channel H can be estimated based on the CSI-RS resources of port M. M And H calculated according to formula (2) N-M Obtain downlink channel information for N ports.

[0383] 4. The UE actively requests the NW to send CSI-RS resources for port N or port M. For example, the NW side configures periodic CSI-RS resources for port N. The UE obtains the channel information for port N based on the channel information of port M. Only when the obtained channel information for port N is within acceptable performance indicators will the UE send a signal to request the NW to send CSI-RS resources for port M. If the UE needs to monitor whether the channel information for port M has accurately obtained the channel information for all N ports, the UE also sends a request message to the NW instructing the NW to send CSI-RS resources for port N. The value of the performance indicator mentioned in 4 is configured by the NW, predefined by the NW and UE through negotiation, or determined by the UE itself.

[0384] Example 1 (Alt1): Assume that NW is configured with two CSI-RS resource sets, the first resource set contains I1 = 1 J 1,i The first resource set contains 32-port CSI-RS resources with a frequency domain density of 1. One resource in this set is used to measure channel information at antenna ports with M=32. The second resource set contains I²=2 J... 1,i The frequency domain density of the 32-port CSI-RS resource is 0.5. Two resources in this resource set are used to measure channel information at antenna ports with N=64. These two resource sets correspond to different CSI-RS resource configuration IDs, and these two CSI-RS resource configuration IDs are configured in the same CSI-ReportConfig, meaning that these two resource sets are associated with the same CSI report.

[0385] Assuming that the CSI-RS resources of ports N and M are aperiodic, the NW triggers the transmission of each resource in the second resource set via DCI signaling. The UE estimates the downlink channel information based on the resources of port N (note: this represents one or more CSI-RS resources constituting port N), performs CSI measurement, and reports the measured CSI to the NW. If X = 5 transmissions of CSI-RS resources on port N are performed, the UE calculates the average R value of these five transmissions. Then, the NW triggers the transmission of resources in the first resource set, port M, via DCI. The UE can calculate the channel information of ports N and M according to formulas (1) and (2), thereby recovering the channel information of port N.

[0386] Example 2 (Alt3-Alt4): Assume the NW is configured with a resource set containing two periodic CSI-RS resources. One resource is used to measure channel information on port M, and the other two are used to measure channel information on port N. The NW first transmits the CSI-RS resource for port N. The UE estimates the channel information for port N and obtains the statistical channel information R. Then, it uses the channel information estimated by the CSI-RS resource for port M to recover the channel information H' for port N. The UE compares the recovered N-port information H' with the channel information H measured based on the CSI-RS resource for port N to determine whether the NW needs to transmit the resource for port M. The criterion for this judgment may require the NW to transmit or predefine corresponding performance indicators, which the UE then uses to make its judgment.

[0387] If the UE determines that the current channel information based on port M can recover the channel information on port N that meets the performance requirements, it sends a request message to the NW. This request can be initiated via L1 or L3 signaling, and the request message includes instructions for the NW to send the channel information for port M. If the UE determines that the channel information recovered based on port M is inaccurate, the request message instructs the NW to send the channel information for port N.

[0388] Optionally, the NW transmits CSI-RS resources for both port N and port M. The UE calculates RI_1 and CQI_1 based on the estimated channel information for port N and reports the RI / CQI to the NW. The UE first recovers the channel information for port N based on the estimated channel information for port M, and then measures and calculates CQI_2 for RI_2 and reports it to the NW. Note that RI_1, CQI_1, RI_2, and CQI_2 can be reported in a single CSI report or separately in two CSI reports. The NW determines whether to transmit CSI-RS for port N or port M based on the received RI_1, CQI_1, RI_2, and CQI_2.

[0389] Example 3 (Alt5): The assumptions are similar to those in Examples 1 and 2, except that the bandwidth occupied by the CSI-RS resources of port N is less than that of port M. The UE still obtains the channel statistical characteristics R based on the CSI-RS resources of port N. Since the spatial correlation between ports in different frequency domain units such as sub-bands or PRBs remains almost unchanged, the UE can use the obtained R and the channel information of port M to calculate the channel information of port NM through the above formulas (1) and (2), thereby recovering the channel information of port N on the remaining bandwidth other than the resource transmission bandwidth of port N.

[0390] The frequency and time domain locations of the N and M ports can be determined through the configured time-frequency resource mapping. The bandwidth of the N and M ports can also be determined through NW configuration or predefined methods.

[0391] 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.

[0392] 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.

[0393] 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.

[0394] 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).

[0395] Figure 6A is a schematic diagram of the structure of a terminal proposed in an embodiment of this disclosure. As shown in Figure 6A, the terminal 101 may include at least one of a transceiver module 1011, a processing module 1012, etc.

[0396] In some embodiments, the transceiver module 1011 is configured to receive channel measurement resources of port N and port M configured by the network device, wherein N is the number of antenna ports of the network device and M is a positive integer less than N.

[0397] Optionally, the transceiver module 1011 is used to perform at least one of the communication steps such as sending and / or receiving performed by the terminal 101 in any of the above methods (e.g., the communication steps such as sending and / or receiving performed by the terminal 101 in S201 to S206, and S401, but not limited thereto), which will not be elaborated here. Optionally, the processing module 1012 is used to perform at least one of the other steps performed by the terminal 101 in any of the above methods (e.g., other steps besides the communication steps such as sending and / or receiving performed by the terminal 101 in S201 to S206, and S401, but not limited thereto), which will not be elaborated here.

[0398] In some embodiments, the transceiver module may include a sending module and / or a receiving module, which may be separate or integrated together.

[0399] In some embodiments, the processing module may be a single module or may include multiple sub-modules. Optionally, the multiple sub-modules may each perform all or part of the steps required by the processing module.

[0400] In some embodiments, the processing module can be replaced by the processor, and the transceiver module can be replaced by the transceiver.

[0401] Figure 6B is a schematic diagram of the structure of a network device according to an embodiment of this disclosure. As shown in Figure 6B, the network device 102 may include at least one of a transceiver module 1021, a processing module 1022, etc.

[0402] In some embodiments, the transceiver module 1021 is configured to configure channel measurement resources for port N and port M to the terminal, wherein N is the number of antenna ports of the network device and M is a positive integer less than N.

[0403] Optionally, the transceiver module 1021 is used to perform at least one of the communication steps such as sending and / or receiving performed by the network device 102 in any of the above methods (e.g., the communication steps such as sending and / or receiving performed by the network device 102 in S201 to S206 and S401, but not limited thereto), which will not be elaborated here. Optionally, the processing module 1022 is used to perform at least one of the other steps performed by the network device 102 in any of the above methods (e.g., other steps besides the communication steps such as sending and / or receiving performed by the network device 102 in S201 to S206 and S401, but not limited thereto), which will not be elaborated here.

[0404] In some embodiments, the transceiver module may include a sending module and / or a receiving module, which may be separate or integrated together.

[0405] In some embodiments, the processing module may be a single module or may include multiple sub-modules. Optionally, the multiple sub-modules may each perform all or part of the steps required by the processing module.

[0406] In some embodiments, the processing module can be replaced by the processor, and the transceiver module can be replaced by the transceiver.

[0407] Figure 7A 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.

[0408] As shown in Figure 7A, 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, terminals, terminal 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.

[0409] 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 (e.g., the sending and / or receiving steps in S201-S206, S401, but not limited thereto), and the processor 5101 performs at least one of other steps (e.g., other steps besides sending and / or receiving in S201-S206, S401, but not limited thereto). In optional embodiments, the transceiver may include a receiver and / or a transmitter, which may be separate or integrated together. Optionally, the terms transceiver, transceiver unit, transceiver, transceiver circuit, interface circuit, interface, etc., can be used interchangeably; the terms transmitter, sending unit, transmitter, sending circuit, etc., can be used interchangeably; the terms receiver, receiving unit, receiver, receiving circuit, etc., can be used interchangeably.

[0410] 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 5103 and can be used to receive data and / or instructions from the memory 5103 or other devices, and can be used to send data and / or instructions to the memory 5103 or other devices. For example, the interface circuit 5104 can read data and / or instructions stored in the memory 5103 and send the data and / or instructions to the processor 5101.

[0411] 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 FIG7A. 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, smart terminal, cellular phone, wireless device, handheld device, mobile unit, vehicle device, network device, cloud device, artificial intelligence device, etc.; (6) others, etc.

[0412] Figure 7B is a schematic diagram of the structure of the chip 5200 proposed in an embodiment of this disclosure. For cases where the communication device 5100 can be a chip or a chip system, the schematic diagram of the chip 5200 shown in Figure 7B can be referred to, but is not limited thereto.

[0413] Chip 5200 includes one or more processors 5201. Chip 5200 is used to perform any of the methods described above.

[0414] 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.

[0415] 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 (e.g., the sending and / or receiving steps in S201-S206, S401, but not limited thereto). The interface circuit 5202 performing the communication steps such as sending and / or receiving in the above-described method refers, for example, to the interface circuit 5202 performing 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 other steps (e.g., steps other than sending and / or receiving in S201-S206, S401, but not limited thereto).

[0416] 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.

[0417] 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.

[0418] 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.

[0419] This disclosure also proposes a computer program that, when run on a computer, causes the computer to perform any of the above methods.

[0420] 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.

[0421] 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.

[0422] 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 channel measurement method, characterized in that, The method is executed by a terminal and includes: The network device receives the channel measurement resources of port N and port M configured, where N is the number of antenna ports of the network device and M is a positive integer less than N.

2. The method as described in claim 1, characterized in that, The channel measurement resources of the N port are located before the channel measurement resources of the M port in the time domain; and / or Of the channel measurement resources of the plurality of N ports, at least one of the channel measurement resources of the N ports is located before the channel measurement resources of the M port in the time domain; and / or The channel measurement resources of the N port are different in frequency domain location from those of the M port.

3. The method as described in claim 1 or 2, characterized in that, The channel measurement resources of the N port and the channel measurement resources of the M port are used by the terminal to perform measurements based on the channel measurement resources of the N port to determine the first channel information of the N port, to perform measurements based on the channel measurement resources of the M port to determine the second channel information of the M port, and to determine the channel information of the N port predicted by the second channel information of the M port based on the first channel information of the N port and the second channel information of the M port.

4. The method according to any one of claims 1 to 3, characterized in that, The channel measurement resources of port M include multiple first resources with the same or different number of ports, and the sum of the number of ports corresponding to the multiple first resources is equal to M; and / or The channel measurement resources of the N ports include multiple second resources with the same number of ports or different numbers of ports, and the sum of the number of ports corresponding to the multiple second resources is equal to N.

5. The method as described in any one of claims 3, characterized in that, The channel measurement resources of port N and port M are associated. The associated channel measurement resources of port N and port M are used by the terminal to perform measurements based on the channel measurement resources of port N to determine the first channel information of port N, to perform measurements based on the channel measurement resources of port M to determine the second channel information of port M, and to determine the channel information of port N predicted by the second channel information of port M based on the first channel information of port N and the second channel information of port M. Finally, the terminal determines the channel state information to be sent to the network device based on the channel information of port N.

6. The method as described in claim 5, characterized in that, The channel measurement resources of the N port and the channel measurement resources of the M port are related, including at least one of the following: The channel measurement resources of the N port and the channel measurement resources of the M port are associated with the same channel state information reporting configuration; The resource identification information corresponding to the channel measurement resources of the N port and the resource identification information corresponding to the channel measurement resources of the M port are located in the same channel status information reporting configuration. The channel state information reporting configuration identifier corresponding to either the channel measurement resource of port N or the channel measurement resource of port M is configured in the channel state information reporting configuration associated with the other.

7. The method according to any one of claims 1 to 6, characterized in that, The channel measurement resources of the N port and the channel measurement resources of the M port configured by the receiving network device include: The network device receives a first resource set configured, the first resource set including channel measurement resources for the N port and channel measurement resources for the M port, wherein the channel measurement resources for the N port and the channel measurement resources for the M port have the same bandwidth or frequency domain density; or The network device receives a second resource set and a third resource set configured therein. The second resource set includes channel measurement resources for the N port, and the third resource set includes channel measurement resources for the M port. The channel measurement resources for the N port and the channel measurement resources for the M port have different bandwidths or frequency domain densities.

8. The method according to any one of claims 1 to 7, characterized in that, The channel measurement resources of the N port and the channel measurement resources of the M port are spaced apart by a first time interval in the time domain.

9. The method according to any one of claims 1 to 8, characterized in that, The channel measurement resources of the N port and the channel measurement resources of the M port have the same quasi-co-address QCL relationship.

10. The method according to any one of claims 1 to 9, characterized in that, The channel measurement resources of the N port have the same power control factor as the channel measurement resources of the M port; or The difference between the power control factor corresponding to the channel measurement resources of the N port and the power control factor corresponding to the channel measurement resources of the M port is less than the power threshold.

11. The method according to any one of claims 1 to 10, characterized in that, The method further includes: Send a request message to the network device, wherein the request message is used to request the network device to perform at least one of the following: Configure the channel measurement resources for the N port; Configure the channel measurement resources for the M port.

12. The method according to any one of claims 1 to 11, characterized in that, The method further includes: The network device receives a first indication message, wherein the first indication message is used to indicate the port configuration of the M port corresponding to the channel measurement resources of the M port.

13. The method as described in claim 11, characterized in that, The request message is used to request the network device to configure the channel measurement resources of the M port, wherein the method further includes: The network device receives a second indication message, wherein the second indication message is used to indicate the port configuration of a plurality of M ports, and the request message is also used to indicate one or more port configurations among the port configurations of the plurality of M ports.

14. The method as described in claim 11, characterized in that, When the request message is used to request the network device to perform channel measurement resource configuration for the M port, sending the request message to the network device includes: If the channel information obtained based on the channel measurement resources of the N port and the channel measurement resources of the M port meets the threshold condition, the request message is sent to the network device.

15. The method according to any one of claims 1 to 14, characterized in that, The method further includes: Channel estimation and measurement are performed based on the channel measurement resources of the N port and the channel measurement resources of the M port to determine channel state information; The channel state information is sent to the network device, wherein the channel state information is used by the network device to determine whether to send the N-port reference signal to the terminal based on the channel measurement resources of the N-port, and / or whether to send the M-port reference signal to the terminal based on the channel measurement resources of the M-port.

16. A channel measurement method, characterized in that, The method is executed by a network device and includes: Configure the terminal with channel measurement resources for port N and port M, where N is the number of antenna ports of the network device and M is a positive integer less than N.

17. The method as described in claim 16, characterized in that, The channel measurement resources of the N port are located before the channel measurement resources of the M port in the time domain; and / or Of the channel measurement resources of the plurality of N ports, at least one of the channel measurement resources of the N ports is located before the channel measurement resources of the M port in the time domain; and / or The channel measurement resources of the N port are different in frequency domain location from those of the M port.

18. The method as described in claim 16 or 17, characterized in that, The channel measurement resources of the N port and the channel measurement resources of the M port are used by the terminal to perform measurements based on the channel measurement resources of the N port to determine the first channel information of the N port, to perform measurements based on the channel measurement resources of the M port to determine the second channel information of the M port, and to determine the channel information of the N port predicted by the second channel information of the M port based on the first channel information of the N port and the second channel information of the M port.

19. The method according to any one of claims 16 to 18, characterized in that, The channel measurement resources of port M include multiple first resources with the same or different number of ports, and the sum of the number of ports corresponding to the multiple first resources is equal to M; and / or The channel measurement resources of the N ports include multiple second resources with the same number of ports or different numbers of ports, and the sum of the number of ports corresponding to the multiple second resources is equal to N.

20. The method as described in claim 18, characterized in that, The channel measurement resources of port N and port M are associated. The associated channel measurement resources of port N and port M are used by the terminal to perform measurements based on the channel measurement resources of port N to determine the first channel information of port N, to perform measurements based on the channel measurement resources of port M to determine the second channel information of port M, and to determine the channel information of port N predicted by the second channel information of port M based on the first channel information of port N and the second channel information of port M. Finally, the terminal determines the channel state information to be sent to the network device based on the channel information of port N.

21. The method as described in claim 20, characterized in that, The channel measurement resources of the N port and the channel measurement resources of the M port are related, including at least one of the following: The channel measurement resources of the N port and the channel measurement resources of the M port are associated with the same channel state information reporting configuration; The resource identification information corresponding to the channel measurement resources of the N port and the resource identification information corresponding to the channel measurement resources of the M port are located in the same channel status information reporting configuration. The channel state information reporting configuration identifier corresponding to either the channel measurement resource of port N or the channel measurement resource of port M is configured in the channel state information reporting configuration associated with the other.

22. The method according to any one of claims 16 to 21, characterized in that, The configuration of channel measurement resources for port N and port M of the terminal includes: Configure a first resource set to the terminal, the first resource set including channel measurement resources of the N port and channel measurement resources of the M port, wherein the channel measurement resources of the N port and the channel measurement resources of the M port have the same bandwidth or frequency domain density; or Configure a second resource set and a third resource set for the terminal. The second resource set includes channel measurement resources for the N port, and the third resource set includes channel measurement resources for the M port. The channel measurement resources for the N port and the channel measurement resources for the M port have different bandwidths or frequency domain densities.

23. The method according to any one of claims 16 to 22, characterized in that, The channel measurement resources of the N port and the channel measurement resources of the M port are spaced apart by a first time interval in the time domain.

24. The method according to any one of claims 16 to 23, characterized in that, The channel measurement resources of the N port and the channel measurement resources of the M port have the same quasi-co-address QCL relationship.

25. The method according to any one of claims 16 to 24, characterized in that, The channel measurement resources of the N port have the same power control factor as the channel measurement resources of the M port; or The difference between the power control factor corresponding to the channel measurement resources of the N port and the power control factor corresponding to the channel measurement resources of the M port is less than the power threshold.

26. The method according to any one of claims 16 to 25, characterized in that, The method further includes: The terminal sends a request message, wherein the request message requests the network device to perform at least one of the following: Configure the channel measurement resources for the N port; Configure the channel measurement resources for the M port.

27. The method according to any one of claims 16 to 26, characterized in that, The method further includes: The network device receives a first indication message, wherein the first indication message is used to indicate the port configuration of the M port corresponding to the channel measurement resources of the M port.

28. The method as described in claim 26, characterized in that, The request message is used to request the network device to configure the channel measurement resources of the M port, wherein the method further includes: Send a second indication message to the terminal, wherein the second indication message is used to indicate the port configuration of a plurality of M ports, and the request message is also used to indicate one or more port configurations among the port configurations of the plurality of M ports.

29. The method as described in claim 26, characterized in that, When the request message is used to request the network device to perform channel measurement resource configuration for the M port, receiving the request message sent by the terminal includes: The terminal receives the request message sent when it determines that the channel information obtained based on the channel measurement resources of the N port and the channel measurement resources of the M port meets the threshold condition.

30. The method according to any one of claims 16 to 29, characterized in that, The method further includes: The terminal receives channel state information; wherein the channel state information is determined by the terminal through channel estimation and measurement based on the channel measurement resources of the N port and the channel measurement resources of the M port. Based on the channel state information, determine whether to send the N-port reference signal to the terminal based on the channel measurement resources of the N-port, and / or whether to send the M-port reference signal to the terminal based on the channel measurement resources of the M-port.

31. A channel measurement method, characterized in that, include: The network device configures channel measurement resources for port N and channel measurement resources for port M to the terminal, where N is the number of antenna ports of the network device and M is a positive integer less than N; The terminal receives the channel measurement resources of the N port and the M port configured by the network device.

32. A communication device, characterized in that, The communication device is used to perform the method according to any one of claims 1 to 15, 16 to 30.

33. A storage medium storing instructions, characterized in that, When the instructions are executed on a communication device, the communication device performs the method as described in any one of claims 1 to 15, 16 to 30.

34. A program product comprising at least one of a program and instructions, characterized in that, When at least one of the programs or instructions is executed by a communication device, it implements the method of any one of claims 1 to 15, 16 to 30.

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