Uplink interference measurement method and apparatus

Abstract

An uplink interference measurement method and apparatus, relating to the field of communications. In the method, a network device sends first information to a terminal device, wherein the first information is used for indicating at least one time-frequency resource, I time-frequency resources among the at least one time-frequency resource occupy M continuous time slots in the time domain and N continuous resource blocks (RBs) in the frequency domain, each time-frequency resource among the I time-frequency resources comprises K measurement RBs, each measurement RB occupies one time slot in the time domain and one RB in the frequency domain, the number of resource elements (REs) for uplink interference measurement in each measurement RB is less than the total number of REs comprised in each measurement RB, and K≤M*N. The network device measures uplink interference signals on the REs for uplink interference measurement in each measurement RB. By using the method, the resource overhead for uplink interference measurement can be greatly reduced.

Description

Uplink interference measurement method and device

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to the Chinese patent application filed with the State Intellectual Property Office of the People's Republic of China on August 9, 2023, with application number 202311002284.3 and invention name "A method and device for measuring uplink interference", the entire contents of which are incorporated by reference into this application. Technical Field

[0003] The present application relates to the field of communication technology, and in particular to an uplink interference measurement method and device. Background Art

[0004] With the rapid development of satellite communications, spectrum resources are rapidly being occupied and becoming increasingly scarce. To expand bandwidth, satellite communications are increasingly exploring spectrum resource sharing. While this sharing of spectrum resources can improve resource utilization and reduce construction costs, it also requires addressing co-frequency and adjacent-frequency interference between satellites and the ground, and between high and low orbits.

[0005] Specifically, inter-system interference can be divided into downlink interference and uplink interference according to the signal direction. In the uplink interference scenario, how to configure the resources for measuring uplink interference without causing a large amount of resource waste is an issue worthy of attention.

[0006] Summary of the Invention

[0007] The present application provides an uplink interference measurement method and apparatus, for implementing uplink interference measurement with relatively low resource overhead.

[0008] In a first aspect, the present application provides an uplink interference measurement method, which can be performed by a network device or a module (such as a chip) in the network device. The method includes: the network device sends first information to the terminal device, the first information is used to indicate at least one time-frequency resource, I time-frequency resources in the at least one time-frequency resource respectively occupy M consecutive time slots in the time domain and N consecutive RBs in the frequency domain, each of the I time-frequency resources includes K measurement resource blocks, each measurement resource block occupies 1 time slot in the time domain and 1 RB in the frequency domain, the number of REs used for uplink interference measurement in each measurement resource block is less than the total number of REs included in each measurement resource block, wherein M, N, K, and I are positive integers, and K≤M*N; the network device measures the uplink interference signal on the resource unit used for uplink interference measurement in each measurement resource block.

[0009] Using the above method, the network device measures the uplink interference signal on the resource elements used for uplink interference measurement in each measurement resource block, and the number of resource elements used for uplink interference measurement in each measurement resource block is less than the total number of resource elements included in each measurement resource block. Therefore, the above method can significantly reduce the resource overhead used for uplink interference measurement.

[0010] In one possible design, the first information includes S indication information, each indication information indicates a time-frequency resource, the S indication information corresponds one-to-one to the S time-frequency resources, S is a positive integer greater than or equal to 1, and when the value of S is greater than or equal to 2, the S time-frequency resources are different from each other; or, at least one time-frequency resource is a periodic time-frequency resource, the first information includes 1 indication information and a period, the 1 indication information indicates a time-frequency resource, and the period is the period of the time-frequency resource indicated by the 1 indication information.

[0011] With the above design, the network device can configure at least one time-frequency resource for the terminal device, and the at least one time-frequency resource can be a periodic resource or a non-periodic resource.

[0012] In one possible design, among the I time-frequency resources, the indication information corresponding to the i-th time-frequency resource includes the starting time slot indication information of the i-th time-frequency resource, the starting resource block indication information of the i-th time-frequency resource, and the pattern indication information of the i-th time-frequency resource, and at least one of the pattern indication information of the RE used for uplink interference measurement; wherein, the pattern of the i-th time-frequency resource is used to determine the positions of the K measurement resource blocks in the i-th time-frequency resource, and the pattern of the RE used for uplink interference measurement is used to determine the position of the RE used for uplink interference measurement in the measurement resource block; wherein, i takes any positive integer from 1 to I.

[0013] With the above design, the pattern and time-frequency starting position of the i-th time-frequency resource, as well as the pattern of REs used for uplink interference measurement in each measurement block in the i-th time-frequency resource can be determined through the above information.

[0014] In one possible design, among the I time-frequency resources, the pattern of the i-th time-frequency resource is determined according to the pattern of the repetition block in the i-th time-frequency resource, the number of repetitions C1 of the repetition block in the time domain, and the number of frequency-domain repetitions C2 of the repetition block in the frequency domain; wherein the repetition block occupies m consecutive time slots in the time domain and n consecutive RBs in the frequency domain; the repetition block includes k measurement resource blocks; the pattern of the repetition block is used to indicate the positions of the k measurement resource blocks in the repetition block; wherein C1, C2, m, n and k are positive integers, k≤m*n, M=m*C1, N=n*C2, K=k*C1*C2; wherein i is any positive integer from 1 to I.

[0015] With the above design, the network device can indicate the pattern of the repeated block in the i-th time-frequency resource and the number of repetitions of the repeated block in the time-frequency domain, thereby obtaining the pattern of the i-th time-frequency resource.

[0016] In one possible design, the pattern indication information of the i-th time-frequency resource includes pattern indication information of the repetition block, the number of repetitions C1 of the repetition block in the time domain, and the number of repetitions C2 of the repetition block in the frequency domain.

[0017] In a possible design, the pattern indication information of the repeated block includes an index of the pattern of the repeated block, or a parameter used to determine the pattern of the repeated block.

[0018] The above design can not only meet the low-cost design of resources, but also reduce signaling overhead.

[0019] In one possible design, the pattern of the repeated block is determined according to the pattern of the first time-frequency resource unit and the pattern of the second time-frequency resource unit, wherein the first time-frequency resource unit occupies m1 consecutive time slots in the time domain and n1 consecutive RBs in the frequency domain, the first time-frequency resource unit includes s1 measurement resource blocks, the second time-frequency resource unit occupies m2 consecutive time slots in the time domain and n2 consecutive RBs in the frequency domain, the second time-frequency resource unit includes s2 measurement resource blocks, m1, m2, n1, n2, s1 and s2 are positive integers, k=s1*s2, m=m1*m2, n=n1*n2; the pattern of the first time-frequency resource unit is used to indicate the positions of the s1 measurement resource blocks in the first time-frequency resource unit; the pattern of the second time-frequency resource unit is used to indicate the positions of the s2 measurement resource blocks in the second time-frequency resource unit.

[0020] With the above design, the pattern of the repetition block can be determined jointly based on the pattern of the first time-frequency resource unit and the pattern of the second time-frequency resource unit, thereby improving the flexibility of the repetition block and reducing signaling overhead.

[0021] In one possible design, in the second time-frequency resource unit, m2=n2=s2, and the s2 measurement resource blocks have no overlap in both the time domain and the frequency domain.

[0022] In one possible design, the pattern of the first time-frequency resource unit is determined according to the rate of change of the power of the uplink interference signal in the frequency domain and / or time domain.

[0023] With the above design, the network device can select the appropriate pattern of the first resource unit and the pattern of the second resource unit based on the results of the uplink interference measurement, thereby obtaining the desired repeated block and time-frequency resource pattern, realizing resource configuration optimization, and further reducing resource overhead.

[0024] In one possible design, the pattern indication information of the repeated block includes pattern indication information of the first time-frequency resource unit and pattern indication information of the second time-frequency resource unit; wherein, the pattern indication information of the first time-frequency resource unit includes the index of the pattern of the first time-frequency resource unit or the parameters used to determine the pattern of the first time-frequency resource unit, and the pattern indication information of the second time-frequency resource unit includes the index of the pattern of the second time-frequency resource unit or the parameters used to determine the pattern of the second time-frequency resource unit.

[0025] In one possible design, the pattern indication information of the RE used for uplink interference measurement includes the number of symbols, the starting symbol offset, the number of subcarriers, and the starting subcarrier offset; or, the pattern indication information of the RE used for uplink interference measurement includes the number of symbols, the starting symbol offset, the comb tooth size, and the starting subcarrier offset.

[0026] In a second aspect, the present application provides an uplink interference measurement method, the method comprising:

[0027] A terminal device receives first information from a network device, where the first information is used to indicate at least one time-frequency resource, where I time-frequency resources in the at least one time-frequency resource respectively occupy M consecutive time slots in the time domain and N consecutive resource blocks RB in the frequency domain, and each of the I time-frequency resources includes K measurement resource blocks, where each measurement resource block occupies 1 time slot in the time domain and 1 RB in the frequency domain, and the number of resource units RE used for uplink interference measurement in each measurement resource block is less than the total number of REs included in each measurement resource block, where M, N, K, and I are positive integers and K≤M*N; the terminal device does not send signals on the resource units used for uplink interference measurement in each measurement resource block.

[0028] By adopting the above method, the terminal device does not send a signal on the resource unit used for uplink interference measurement in each measurement resource block, and the number of resource units used for uplink interference measurement in each measurement resource block is less than the total number of resource units included in each measurement resource block. Therefore, the above method can significantly reduce the resource overhead used for uplink interference measurement.

[0029] In one possible design, the first information includes S indication information, each indication information indicates a time-frequency resource, the S indication information corresponds one-to-one to the S time-frequency resources, S is a positive integer greater than or equal to 1, and when the value of S is greater than or equal to 2, the S time-frequency resources are different from each other; or, at least one time-frequency resource is a periodic time-frequency resource, the first information includes 1 indication information and a period, the 1 indication information indicates a time-frequency resource, and the period is the period of the time-frequency resource indicated by the 1 indication information.

[0030] In one possible design, among the I time-frequency resources, the indication information corresponding to the i-th time-frequency resource includes the starting time slot indication information of the i-th time-frequency resource, the starting resource block indication information of the i-th time-frequency resource, and the pattern indication information of the i-th time-frequency resource, and at least one of the pattern indication information of the RE used for uplink interference measurement; wherein, the pattern of the i-th time-frequency resource is used to determine the positions of the K measurement resource blocks in the i-th time-frequency resource, and the pattern of the RE used for uplink interference measurement is used to determine the position of the RE used for uplink interference measurement in the measurement resource block; wherein, i takes any positive integer from 1 to I.

[0031] In one possible design, among the I time-frequency resources, the pattern of the i-th time-frequency resource is determined according to the pattern of the repetition block in the i-th time-frequency resource, the number of repetitions C1 of the repetition block in the time domain, and the number of frequency-domain repetitions C2 of the repetition block in the frequency domain; wherein the repetition block occupies m consecutive time slots in the time domain and n consecutive RBs in the frequency domain; the repetition block includes k measurement resource blocks; the pattern of the repetition block is used to indicate the positions of the k measurement resource blocks in the repetition block; wherein C1, C2, m, n and k are positive integers, k≤m*n, M=m*C1, N=n*C2, K=k*C1*C2; wherein i is any positive integer from 1 to I.

[0032] In one possible design, the pattern indication information of the i-th time-frequency resource includes pattern indication information of the repetition block, the number of repetitions C1 of the repetition block in the time domain, and the number of repetitions C2 of the repetition block in the frequency domain.

[0033] In a possible design, the pattern indication information of the repeated block includes an index of the pattern of the repeated block, or a parameter used to determine the pattern of the repeated block.

[0034] In one possible design, the pattern of the repeated block is determined according to the pattern of the first time-frequency resource unit and the pattern of the second time-frequency resource unit, wherein the first time-frequency resource unit occupies m1 consecutive time slots in the time domain and n1 consecutive RBs in the frequency domain, the first time-frequency resource unit includes s1 measurement resource blocks, the second time-frequency resource unit occupies m2 consecutive time slots in the time domain and n2 consecutive RBs in the frequency domain, the second time-frequency resource unit includes s2 measurement resource blocks, m1, m2, n1, n2, s1 and s2 are positive integers, k=s1*s2, m=m1*m2, n=n1*n2; the pattern of the first time-frequency resource unit is used to indicate the positions of the s1 measurement resource blocks in the first time-frequency resource unit; the pattern of the second time-frequency resource unit is used to indicate the positions of the s2 measurement resource blocks in the second time-frequency resource unit.

[0035] In one possible design, in the second time-frequency resource unit, m2=n2=s2, and the s2 measurement resource blocks have no overlap in both the time domain and the frequency domain.

[0036] In one possible design, the pattern of the first time-frequency resource unit is determined according to the rate of change of the power of the uplink interference signal in the frequency domain and / or time domain.

[0037] In one possible design, the pattern indication information of the repeated block includes pattern indication information of the first time-frequency resource unit and pattern indication information of the second time-frequency resource unit;

[0038] The pattern indication information of the first time-frequency resource unit includes the index of the pattern of the first time-frequency resource unit or the parameters used to determine the pattern of the first time-frequency resource unit, and the pattern indication information of the second time-frequency resource unit includes the index of the pattern of the second time-frequency resource unit or the parameters used to determine the pattern of the second time-frequency resource unit.

[0039] In one possible design, the pattern indication information of the RE used for uplink interference measurement includes the number of symbols, the starting symbol offset, the number of subcarriers, and the starting subcarrier offset; or, the pattern indication information of the RE used for uplink interference measurement includes the number of symbols, the starting symbol offset, the comb tooth size, and the starting subcarrier offset.

[0040] In a third aspect, the present application provides an uplink interference measurement device, the device comprising:

[0041] A transceiver unit is used to send first information to a terminal device, where the first information is used to indicate at least one time-frequency resource, where I time-frequency resources in the at least one time-frequency resource respectively occupy M consecutive time slots in the time domain and N consecutive resource blocks RB in the frequency domain, each of the I time-frequency resources includes K measurement resource blocks, each measurement resource block occupies 1 time slot in the time domain and 1 RB in the frequency domain, and the number of resource elements RE used for uplink interference measurement in each measurement resource block is less than the total number of REs included in each measurement resource block, where M, N, K, and I are positive integers and K≤M*N; and a processing unit calls the transceiver unit to execute: measuring an uplink interference signal on the resource element used for uplink interference measurement in each measurement resource block.

[0042] In one possible design, the first information includes S indication information, each indication information indicates a time-frequency resource, the S indication information corresponds one-to-one to the S time-frequency resources, S is a positive integer greater than or equal to 1, and when the value of S is greater than or equal to 2, the S time-frequency resources are different from each other; or, at least one time-frequency resource is a periodic time-frequency resource, the first information includes 1 indication information and a period, the 1 indication information indicates a time-frequency resource, and the period is the period of the time-frequency resource indicated by the 1 indication information.

[0043] In one possible design, among the I time-frequency resources, the indication information corresponding to the i-th time-frequency resource includes the starting time slot indication information of the i-th time-frequency resource, the starting resource block indication information of the i-th time-frequency resource, and the pattern indication information of the i-th time-frequency resource, and at least one of the pattern indication information of the RE used for uplink interference measurement; wherein, the pattern of the i-th time-frequency resource is used to determine the positions of the K measurement resource blocks in the i-th time-frequency resource, and the pattern of the RE used for uplink interference measurement is used to determine the position of the RE used for uplink interference measurement in the measurement resource block; wherein, i takes any positive integer from 1 to I.

[0044] In one possible design, among the I time-frequency resources, the pattern of the i-th time-frequency resource is determined according to the pattern of the repetition block in the i-th time-frequency resource, the number of repetitions C1 of the repetition block in the time domain, and the number of frequency-domain repetitions C2 of the repetition block in the frequency domain; wherein the repetition block occupies m consecutive time slots in the time domain and n consecutive RBs in the frequency domain; the repetition block includes k measurement resource blocks; the pattern of the repetition block is used to indicate the positions of the k measurement resource blocks in the repetition block; wherein C1, C2, m, n and k are positive integers, k≤m*n, M=m*C1, N=n*C2, K=k*C1*C2; wherein i is any positive integer from 1 to I.

[0045] In one possible design, the pattern indication information of the i-th time-frequency resource includes pattern indication information of the repetition block, the number of repetitions C1 of the repetition block in the time domain, and the number of repetitions C2 of the repetition block in the frequency domain.

[0046] In a possible design, the pattern indication information of the repeated block includes an index of the pattern of the repeated block, or a parameter used to determine the pattern of the repeated block.

[0047] In one possible design, the pattern of the repeated block is determined according to the pattern of the first time-frequency resource unit and the pattern of the second time-frequency resource unit, wherein the first time-frequency resource unit occupies m1 consecutive time slots in the time domain and n1 consecutive RBs in the frequency domain, the first time-frequency resource unit includes s1 measurement resource blocks, the second time-frequency resource unit occupies m2 consecutive time slots in the time domain and n2 consecutive RBs in the frequency domain, the second time-frequency resource unit includes s2 measurement resource blocks, m1, m2, n1, n2, s1 and s2 are positive integers, k=s1*s2, m=m1*m2, n=n1*n2; the pattern of the first time-frequency resource unit is used to indicate the positions of the s1 measurement resource blocks in the first time-frequency resource unit; the pattern of the second time-frequency resource unit is used to indicate the positions of the s2 measurement resource blocks in the second time-frequency resource unit.

[0048] In one possible design, in the second time-frequency resource unit, m2=n2=s2, and the s2 measurement resource blocks have no overlap in both the time domain and the frequency domain.

[0049] In one possible design, the pattern of the first time-frequency resource unit is determined according to the rate of change of the power of the uplink interference signal in the frequency domain and / or time domain.

[0050] In one possible design, the pattern indication information of the repeated block includes pattern indication information of the first time-frequency resource unit and pattern indication information of the second time-frequency resource unit;

[0051] The pattern indication information of the first time-frequency resource unit includes the index of the pattern of the first time-frequency resource unit or the parameters used to determine the pattern of the first time-frequency resource unit, and the pattern indication information of the second time-frequency resource unit includes the index of the pattern of the second time-frequency resource unit or the parameters used to determine the pattern of the second time-frequency resource unit.

[0052] In one possible design, the pattern indication information of the RE used for uplink interference measurement includes the number of symbols, the starting symbol offset, the number of subcarriers, and the starting subcarrier offset; or, the pattern indication information of the RE used for uplink interference measurement includes the number of symbols, the starting symbol offset, the comb tooth size, and the starting subcarrier offset.

[0053] In a fourth aspect, the present application provides an uplink interference measurement device, the device comprising:

[0054] a transceiver unit, configured to receive first information from a network device, where the first information is used to indicate at least one time-frequency resource, where I time-frequency resources in the at least one time-frequency resource respectively occupy M consecutive time slots in the time domain and N consecutive resource blocks (RBs) in the frequency domain, each of the I time-frequency resources includes K measurement resource blocks, each measurement resource block occupies one time slot in the time domain and one RB in the frequency domain, and the number of resource elements (REs) used for uplink interference measurement in each measurement resource block is less than the total number of REs included in each measurement resource block, where M, N, K, and I are positive integers, K≤M*N, and the i-th time-frequency resource is any one of the at least one time-frequency resource;

[0055] The processing unit is configured to determine not to send a signal on a resource unit used for uplink interference measurement in each measurement resource block.

[0056] In one possible design, the first information includes S indication information, each indication information indicates a time-frequency resource, the S indication information corresponds one-to-one to the S time-frequency resources, S is a positive integer greater than or equal to 1, and when the value of S is greater than or equal to 2, the S time-frequency resources are different from each other; or, at least one time-frequency resource is a periodic time-frequency resource, the first information includes 1 indication information and a period, the 1 indication information indicates a time-frequency resource, and the period is the period of the time-frequency resource indicated by the 1 indication information.

[0057] In one possible design, among the I time-frequency resources, the indication information corresponding to the i-th time-frequency resource includes the starting time slot indication information of the i-th time-frequency resource, the starting resource block indication information of the i-th time-frequency resource, and the pattern indication information of the i-th time-frequency resource, and at least one of the pattern indication information of the RE used for uplink interference measurement; wherein, the pattern of the i-th time-frequency resource is used to determine the positions of the K measurement resource blocks in the i-th time-frequency resource, and the pattern of the RE used for uplink interference measurement is used to determine the position of the RE used for uplink interference measurement in the measurement resource block; wherein, i takes any positive integer from 1 to I.

[0058] In one possible design, among the I time-frequency resources, the pattern of the i-th time-frequency resource is determined according to the pattern of the repetition block in the i-th time-frequency resource, the number of repetitions C1 of the repetition block in the time domain, and the number of frequency-domain repetitions C2 of the repetition block in the frequency domain; wherein the repetition block occupies m consecutive time slots in the time domain and n consecutive RBs in the frequency domain; the repetition block includes k measurement resource blocks; the pattern of the repetition block is used to indicate the positions of the k measurement resource blocks in the repetition block; wherein C1, C2, m, n and k are positive integers, k≤m*n, M=m*C1, N=n*C2, K=k*C1*C2; wherein i is any positive integer from 1 to I.

[0059] In one possible design, the pattern indication information of the i-th time-frequency resource includes pattern indication information of the repetition block, the number of repetitions C1 of the repetition block in the time domain, and the number of repetitions C2 of the repetition block in the frequency domain.

[0060] In a possible design, the pattern indication information of the repeated block includes an index of the pattern of the repeated block, or a parameter used to determine the pattern of the repeated block.

[0061] In one possible design, the pattern of the repeated block is determined according to the pattern of the first time-frequency resource unit and the pattern of the second time-frequency resource unit, wherein the first time-frequency resource unit occupies m1 consecutive time slots in the time domain and n1 consecutive RBs in the frequency domain, the first time-frequency resource unit includes s1 measurement resource blocks, the second time-frequency resource unit occupies m2 consecutive time slots in the time domain and n2 consecutive RBs in the frequency domain, the second time-frequency resource unit includes s2 measurement resource blocks, m1, m2, n1, n2, s1 and s2 are positive integers, k=s1*s2, m=m1*m2, n=n1*n2; the pattern of the first time-frequency resource unit is used to indicate the positions of the s1 measurement resource blocks in the first time-frequency resource unit; the pattern of the second time-frequency resource unit is used to indicate the positions of the s2 measurement resource blocks in the second time-frequency resource unit.

[0062] In one possible design, in the second time-frequency resource unit, m2=n2=s2, and the s2 measurement resource blocks have no overlap in both the time domain and the frequency domain.

[0063] In one possible design, the pattern of the first time-frequency resource unit is determined according to the rate of change of the power of the uplink interference signal in the frequency domain and / or time domain.

[0064] In one possible design, the pattern indication information of the repeated block includes pattern indication information of the first time-frequency resource unit and pattern indication information of the second time-frequency resource unit;

[0065] The pattern indication information of the first time-frequency resource unit includes the index of the pattern of the first time-frequency resource unit or the parameters used to determine the pattern of the first time-frequency resource unit, and the pattern indication information of the second time-frequency resource unit includes the index of the pattern of the second time-frequency resource unit or the parameters used to determine the pattern of the second time-frequency resource unit.

[0066] In one possible design, the pattern indication information of the RE used for uplink interference measurement includes the number of symbols, the starting symbol offset, the number of subcarriers, and the starting subcarrier offset; or, the pattern indication information of the RE used for uplink interference measurement includes the number of symbols, the starting symbol offset, the comb tooth size, and the starting subcarrier offset.

[0067] In a fifth aspect, the present application provides a communication device, which can be applied to a terminal device or a network device, and the device includes a unit for executing any of the methods described in any of the above aspects.

[0068] In a sixth aspect, the present application provides a communication device comprising at least one processing element and at least one storage element, wherein the at least one storage element is used to store programs and data, and the at least one processing element is used to read and execute the programs and data stored in the storage element, so that any method described in any one of the above aspects of the present application is implemented.

[0069] In a seventh aspect, the present application further provides a computer program, which, when executed on a computer, enables the computer to execute any of the methods described in any of the above aspects.

[0070] In an eighth aspect, the present application provides a communication device, comprising: an interface circuit; the interface circuit is used to provide input and / or output of programs or instructions to at least one processor; the at least one processor is used to execute the program or instructions so that the communication device can implement any of the methods described in any of the above aspects.

[0071] In one possible manner, the communication device includes the at least one processor.

[0072] In a ninth aspect, the present application provides a computer storage medium storing a software program. When the software program is read and executed by one or more processors, the software program can implement any of the methods described in any of the above aspects.

[0073] In a tenth aspect, the present application provides a computer program product comprising instructions, which, when executed on a computer, enables the computer to execute any of the methods described in any of the above aspects.

[0074] In the eleventh aspect, a chip system is provided, which includes at least one chip and a memory, and the at least one chip is used to read and execute the program stored in the memory to implement any of the methods described in any of the above aspects.

[0075] In the twelfth aspect, a communication system is provided, the system comprising at least one terminal and a network device, the terminal executing any one of the methods described in the second aspect, and the network device executing any one of the methods described in the first aspect.

[0076] Based on the implementations provided in the above aspects, this application can also be further combined to provide more implementations. BRIEF DESCRIPTION OF THE DRAWINGS

[0077] FIG1 is a schematic diagram of the architecture of a mobile communication system used in an embodiment of the present application;

[0078] FIG2 is a schematic diagram of a typical scenario in which an NTN network provides user equipment access in this application;

[0079] FIG3 is a schematic diagram of another typical scenario of an NTN network providing user equipment access in this application;

[0080] FIG4 is a schematic diagram of downlink interference in this application;

[0081] FIG5 is a schematic diagram of uplink interference in this application;

[0082] FIG6 is a schematic diagram of an interference scenario between a LEO satellite and a terrestrial cell in this application;

[0083] FIG7 is a schematic diagram of an interference scenario between a low-orbit satellite and a high-orbit satellite in this application;

[0084] FIG8 is a schematic diagram of a frame structure in this application;

[0085] FIG9 is a schematic diagram of a possible flow chart of an uplink interference measurement method in the present application;

[0086] FIG10 is a schematic diagram of a pattern of REs used for uplink interference measurement in the present application;

[0087] FIG11 is a schematic diagram of another RE pattern used for uplink interference measurement in the present application;

[0088] FIG12 is a schematic diagram of a pattern of the i-th time-frequency resource in this application;

[0089] FIG13 is a schematic diagram of another pattern of the i-th time-frequency resource in this application;

[0090] FIG14 is a schematic diagram of a pattern of a first time-frequency resource unit in this application;

[0091] FIG15 is a schematic diagram of a pattern of a second time-frequency resource unit in this application;

[0092] FIG16 is a schematic diagram of a time-frequency resource pattern shown in Example a of this application;

[0093] FIG17 is a schematic diagram of a time-frequency resource pattern shown in Example b of this application;

[0094] FIG18 is a schematic diagram of a time-frequency resource pattern shown in Example c of this application;

[0095] FIG19 is a schematic diagram of a time-frequency resource pattern shown in Example d of this application;

[0096] FIG20 is a schematic diagram of a time-frequency resource pattern shown in Example e of this application;

[0097] FIG21 is a schematic structural diagram of a communication device in this application;

[0098] FIG22 is a schematic structural diagram of another communication device in this application. DETAILED DESCRIPTION

[0099] The technical solutions of the embodiments of the present application can be applied to various communication systems, such as long term evolution (LTE) systems, 5G systems or new radio (NR), non-terrestrial networks (NTN), and future communication systems such as the sixth generation mobile communication system. This application is not limited to this.

[0100] FIG1 is a schematic diagram of the architecture of a communication system 100 applicable to an embodiment of the present application. As shown in FIG1 , the communication system 100 may include at least one access network device (such as 110a, 110b, and 110c in FIG1 ) and may also include at least one terminal device (such as 120a-120g in FIG1 ). Access network devices may be connected to each other via wired or wireless means. FIG1 is merely a schematic diagram, and the communication system may also include other network devices, such as wireless relay devices and wireless backhaul devices.

[0101] The network device provided in the embodiments of the present application may be an access network device, such as a base station, a Node B, an evolved Node B (eNodeB or eNB), a transmission reception point (TRP), a next generation Node B (gNB) in a fifth generation (5G) mobile communication system, an access network device in an open radio access network (O-RAN or open RAN), a next generation base station in a sixth generation (6G) mobile communication system, or a base station in a future mobile communication system, or an access node in a wireless fidelity (WiFi) system. Alternatively, the network device may be a module or unit that performs part of the functions of a base station, for example, a centralized unit (CU), a distributed unit (DU), a centralized unit control plane (CU-CP) module, or a centralized unit user plane (CU-UP) module. The network device can be a satellite (such as 110a in Figure 1) or a macro base station (such as 110b in Figure 1). The access network device can also be a micro base station or an indoor station (such as 110c in Figure 1), or a relay node or a donor node. This application does not limit the specific technology and specific device form used by the access network device. For ease of description, the following description uses a network device as an example of an access network device.

[0102] The terminal device provided in the embodiments of the present application may also be referred to as a terminal, including but not limited to user equipment (UE), mobile station, or mobile terminal. The terminal device can be widely used in various communication scenarios. The scenarios include, but are not limited to, at least one of the following: enhanced mobile broadband (eMBB), ultra-reliable low-latency communication (URLLC), massive machine-type communications (mMTC), device-to-device (D2D), vehicle-to-everything (V2X), machine-type communication (MTC), Internet of Things (IoT), virtual reality, augmented reality, industrial control, autonomous driving, telemedicine, smart grid, smart furniture, smart office, smart wearable, smart transportation, or smart city. The terminal device may be a mobile phone (such as mobile phones 120a, 120d, and 120f in FIG1 ), a tablet computer, a computer with wireless transceiver capabilities (such as computer 120g in FIG1 ), a wearable device, a vehicle (such as 120b in FIG1 ), a drone, a helicopter, an airplane (such as 120c in FIG1 ), a ship, a robot, a robotic arm, or a smart home device (such as printer 120e in FIG1 ). This application does not limit the specific technology and specific device form used by the terminal device.

[0103] The network equipment and / or terminal equipment can be fixed or movable. The network equipment and / or terminal equipment can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; or can be deployed on the water surface; or can be deployed on aircraft, balloons and artificial satellites in the air. This application does not limit the environment / scenario in which the network equipment and terminal equipment are located. The network equipment and terminal equipment can be deployed in the same or different environments / scenarios, for example, the network equipment and terminal equipment are deployed on land at the same time; or, the network equipment is deployed on land and the terminal equipment is deployed on water surface, etc., and no further examples are given.

[0104] Below, some terms used in the embodiments of the present application are first explained to facilitate understanding by those skilled in the art.

[0105] 1. NTN

[0106] NTN refers to a network that utilizes radio frequency resources on satellites (or unmanned aircraft systems (UAS) or high altitude platform stations (HAPS)). Compared to terrestrial cellular networks (e.g., 5th-generation mobile communication technology (5G)), NTN networks offer wide coverage, low latency, broadband, and low cost. As a supplement and extension of terrestrial cellular networks, NTN networks can achieve wide-area seamless coverage that neither wired telephone networks nor terrestrial mobile communication networks can achieve, effectively addressing internet access challenges in areas lacking communication infrastructure. With a large number of satellites deployed in low-Earth orbit, the round-trip data transmission delay between satellites and ground-based terminal devices is significantly reduced, reaching a low latency of tens of milliseconds. The use of technologies such as high-frequency bands, multi-spot beams, and frequency reuse significantly enhances satellite communication capabilities, reduces unit bandwidth costs, and meets the needs of high-information-rate services. Compared to communication infrastructure such as terrestrial cellular base stations and submarine fiber optic cables, NTNs offer significant cost advantages. Modern small satellites are inexpensive to develop and manufacture, and software-defined technologies can further extend the service life of in-orbit satellites. NTN networks can be used in scenarios such as global coverage (such as remote areas and ocean-going ships), emergency relief (such as disaster monitoring and emergency communications), the Internet of Everything, and high-speed mobility (such as high-speed rail and airplanes).

[0107] The 3rd Generation Partnership Project (3GPP) began conducting satellite-ground integration research in R14, and discussed the role and advantages of satellites in 5G systems in TS22.261, stipulating for the first time that 5G supports satellite access. In R15, the first 5G and satellite integration technical report TR 38.811 was formed, which defined 8 eMBB scenarios and 2 massive machine-type communications (mMTC) scenarios, and defined the channel model of NTN. R16 further studied the architecture and solutions for NR to support NTN in TR 38.821. Based on the research results of R16, the standardization work of 5G new air interface support for NTN was launched in R17, and the first version of the integration technical specification was formed. R18 will continue the enhancement research of NTN.

[0108] Typical scenarios for NTN networks to provide user equipment access include transparent payloads and regenerative payloads. In the transparent payload scenario, there is no baseband demodulation, decoding, or other processing on the satellite. Therefore, the signal waveform remains unchanged and is repeated, as shown in Figure 2. In the regenerative payload scenario, the satellite (or UAS platform) has all or part of the base station functions (e.g., gNB), as shown in Figure 3. It should be noted that Figures 2 and 3 are only examples of NTN scenarios. NTN scenarios can also include other specific scenarios, which are not limited in this application.

[0109] NTN networks typically have the following elements:

[0110] 1. There are one or more gateways connecting the NTN network and the public data network.

[0111] 2. Feeder link: The wireless link between the gateway and the satellite (or UAS platform).

[0112] 3. Service link: The wireless link between the terminal device and the satellite (or UAS platform).

[0113] 4. Satellites (or UAS platforms) that can achieve transparent payloads and regenerative payloads.

[0114] 5. Whether a satellite constellation has an inter-satellite link (ISL) is optional. If an ISL is present, the satellites are regenerative payloads. ISLs can operate at radio frequency (RF) or optical bands.

[0115] 6. The terminal device is served by a satellite (or UAS platform) within the target service area.

[0116] 2. Satellite Spectrum

[0117] Satellite communications operate in the microwave band, which ranges from 1 GHz to 40 GHz. Frequency bands are categorized as L, S, C, X, Ku, K, and Ka. Different frequency bands serve different purposes. The K band is unsuitable for satellite communications because it falls within the frequency window most susceptible to atmospheric absorption losses. Therefore, the commonly used satellite communication frequency bands are L, S, C, X, Ku, and Ka.

[0118] The L and S bands are used for mobile satellite communications, such as handheld satellite phones. The C band has a relatively low frequency, resulting in wide signal coverage and minimal weather impact. It is commonly used for private network communications within government and businesses, international dedicated lines, and content distribution for television stations. The X band is a regulated band, typically used by government and military agencies and not for civilian or commercial use. The Ku band has a relatively high frequency and is susceptible to antenna fluctuations, but its signal strength is higher than that of the C band. Therefore, ground receiving antennas can be much smaller, typically as small as 0.35 meters in diameter, making it ideal for direct-to-home satellite TV broadcasts. The Ka band has been put into use in recent years. Because the C and Ku bands are nearing saturation and cannot carry more services, the search for the higher-frequency Ka band has begun.

[0119] Higher frequency bands offer greater bandwidth resources and support greater service capacity. With the surge in demand for satellite internet access in recent years, interest has shifted to the higher-frequency Ka-band. Although more susceptible to weather than the Ku-band, its larger operating bandwidth, higher signal strength, and smaller antenna aperture make it more valuable for development. Common satellite communication frequency bands and their primary uses are shown in Table 1.

[0120] Table 1

[0121] For frequency range (FR) 1, the frequency range and band number of NTN are shown in Table 2.

[0122] Table 2 3GPP NTN frequency band (FR1)

[0123] For frequency bands above 10 GHz, the frequency range and band number of NTN are shown in Table 3.

[0124] Table 3 3GPP NTN frequency band (FR2)

[0125] 3. Inter-system interference

[0126] Inter-system interference can be divided into downlink interference and uplink interference according to the signal direction.

[0127] Downlink interference has the following characteristics:

[0128] 1. Fewer interference sources. Taking the case of a low-orbit satellite interfering with a ground terminal device as an example, as shown in Figure 4, the main interference source is satellite 1, which covers this terminal device. Satellite 2's interference to this terminal device mainly comes from side lobes, has greater path loss, and has a lower interference level.

[0129] 2. Since ground base stations / low-orbit satellites are closer to terminal devices, the interference is stronger.

[0130] Uplink interference has the following characteristics:

[0131] 1. Multiple interference sources: Taking the case of ground terminal equipment interfering with a low-orbit satellite as an example, as shown in Figure 5, the interference sources are all ground terminal equipment within the satellite's visual range;

[0132] 2. Strong aggregate interference: The main interference source is the terminal equipment near the main lobe of the satellite beam, where the satellite receiving gain is large.

[0133] 3. Beam level: For a single-satellite multi-beam scenario, different beam directions of the satellite are subject to different interference;

[0134] 4. Frequency selection characteristics: Interference signals present different interference characteristics in different frequency bands;

[0135] 5. Time-varying characteristics: The interference signal presents different interference characteristics at different times.

[0136] Inter-system interference can be divided into satellite-to-ground interference and high-orbit and low-orbit interference according to the interference scenario.

[0137] (1) Satellite-to-ground interference

[0138] Due to the large number of base stations and terminal devices in terrestrial cellular networks, and the fact that LEO satellites are closer to the ground and have less path loss, interference between LEO satellites and terrestrial cellular networks is likely to occur. Figure 6 shows the interference scenario between LEO satellites and terrestrial cellular networks, where solid lines represent valid signals, dashed lines represent interfering signals, and arrows indicate signal directions.

[0139] As shown in Table 4, interference situations can be divided into the following six categories.

[0140] Table 4 Classification of satellite-to-ground interference

[0141] (2) High and low orbit interference

[0142] High-orbit satellites cover a large area, and the coverage of low-orbit satellites can overlap with that of high-orbit satellites. Because low-orbit satellites have less path loss, interference between high-orbit and low-orbit satellites is more likely to occur. Figure 7 shows the interference scenario between low-orbit and high-orbit satellites. Solid lines represent valid signals, dashed lines represent interfering signals, and arrows indicate signal directions.

[0143] As shown in Table 5, interference situations can be divided into the following four categories.

[0144] Table 5 Classification of high and low orbit interference

[0145] Currently, to measure uplink interference, the frame structure is designed as shown in Figure 8. Time slot 0 is used for uplink interference measurement. That is, during this time slot, the satellite terminal does not transmit signals, and the satellite base station receives interference signals. Time slots 1 through 7 are used for signal transmission. That is, the satellite terminal transmits signals, and the satellite base station receives and filters out interference signals to form a valid signal. Time slot 0 occupies all frequency domain resources during this period, resulting in significant resource waste. Taking Figure 7 as an example, assuming that all frequency domain resources in time slots 1 through 7 are used for data scheduling, the time-frequency domain resources are wasted by 1 / 8, approximately 12.5%.

[0146] Based on the network system architecture shown in FIG1 and the contents of the above-mentioned related technical introduction, an uplink interference measurement method is provided in an embodiment of the present application. The execution subjects of each method are introduced by taking a network device and a terminal device as examples. For example, the network device may be 110a, 110b, and 110c in FIG1 . The terminal device may be 120a-120g in FIG1 . In addition, it should be understood that the network device may be replaced by a communication device having network device functions or a chip, unit, or module inside a communication device having network device functions. The terminal device may be replaced by a communication device having terminal device functions or a chip, unit, or module inside a communication device having terminal device functions. It is understood that the present application does not specifically limit the specific structure of the execution subject of the method provided in the embodiment of the present application. As long as it is possible to communicate according to the method provided in the embodiment of the present application by running a program that records the code of the method provided in the embodiment of the present application, the interaction between the terminal device and the network device will be explained as an example.

[0147] In this application, the names of the messages and resources in the following processes are merely examples. As communication technologies evolve, the names of the messages and resources in the following processes may change. However, regardless of how the names change, as long as their meanings are the same as the functions or meanings of the messages in this application, they fall within the scope of protection of this application. The order of the steps in the following processes is merely an example. In actual applications, the execution order of the steps in each process can be adjusted.

[0148] FIG9 exemplarily illustrates a possible flow diagram of an uplink interference measurement method provided in an embodiment of the present application. As shown in FIG9 , the method includes:

[0149] Step 900: The network device sends first information to the terminal device. Correspondingly, the terminal device receives the first information from the network device.

[0150] Exemplarily, the first information is used to indicate at least one time-frequency resource, and I time-frequency resources in the at least one time-frequency resource occupy M consecutive time slots in the time domain and N consecutive resource blocks (resource blocks, RBs) in the frequency domain. Each of the I time-frequency resources includes K measurement resource blocks, and each measurement resource block occupies 1 time slot in the time domain and 1 RB in the frequency domain. The number of resource elements (REs) used for uplink interference measurement in each measurement resource block is less than the total number of REs included in each measurement resource block, where M, N, K, and I are positive integers and K≤M*N.

[0151] Step 910: The network device measures the uplink interference signal on the resource element used for uplink interference measurement in each measurement resource block. Accordingly, the terminal device does not send a signal on the resource element used for uplink interference measurement in each measurement resource block.

[0152] It can be understood that the terminal device can send a signal to the network device on a resource unit other than the resource unit used for uplink interference measurement in each measurement resource block, and then the network device can process the signal received on the resource unit other than the resource unit used for uplink interference measurement in each measurement resource block based on the relevant information of the uplink interference signal measured on the resource unit used for uplink interference measurement in each measurement resource block, so as to obtain a valid uplink signal.

[0153] Using the above method, the network device measures the uplink interference signal on the resource elements used for uplink interference measurement in each measurement resource block, and the number of resource elements used for uplink interference measurement in each measurement resource block is less than the total number of resource elements included in each measurement resource block. Therefore, the above method can significantly reduce the resource overhead used for uplink interference measurement.

[0154] In one possible implementation, the first information includes S indication information, the S indication information corresponds one-to-one to S time-frequency resources, S is a positive integer greater than or equal to 1, and when the value of S is greater than or equal to 2, the S time-frequency resources are different from each other. That is, the first information can indicate S time-frequency resources, the value of S can be 1, or the value of S can also be greater than or equal to 2, when the value of S is greater than or equal to 2, the S time-frequency resources are different from each other, that is, the S indication information can be different from each other. At this time, the number of at least one time-frequency resource is S. Exemplarily, at least one time-frequency resource can be a non-periodic time-frequency resource. The network device can independently configure at least one time-frequency resource and generate an indication information for each time-frequency resource.

[0155] In another possible implementation, the first information includes one indication information and a period. The one indication information indicates one time-frequency resource, and the period is the period of the time-frequency resource indicated by the one indication information. In other words, the first information may indicate one time-frequency resource and the period of the time-frequency resource, that is, at least one time-frequency resource is a periodic time-frequency resource.

[0156] In addition, the first information may also indicate at least one time-frequency resource in other ways, which is not limited in this application.

[0157] The following description only takes the i-th time-frequency resource and the indication information corresponding to the i-th time-frequency resource as an example, wherein the i-th time-frequency resource is any one of the I time-frequency resources, and i is any positive integer from 1 to I.

[0158] It can be understood that if the first information includes S indication information, the indication information corresponding to the i-th time-frequency resource is one of the S indication information. If the number of at least one time-frequency resource indicated by the first information is different from the value of I, this application does not limit the specific form of the other time-frequency resources other than I time-frequency resources in the at least one time-frequency resource and the specific implementation method of the corresponding indication information. If the number of at least one time-frequency resource indicated by the first information is the same as the value of I, the specific implementation method of the indication information corresponding to the i-th time-frequency resource and the other indication information other than the indication information corresponding to the i-th time-frequency resource are similar, and they can refer to each other.

[0159] If the first information includes one indication specific information and a period, in this case, the i-th time-frequency resource can be the time-frequency resource indicated by the indication information or the time-frequency resource corresponding to any period, and the at least one time-frequency resource indicated by the first information is I time-frequency resources, and the number of the at least one time-frequency resource is the same as the value of I. If the time-frequency resource indicated by the one indication information is the i-th time-frequency resource, then the one indication information is the indication information corresponding to the i-th time-frequency resource.

[0160] Unless otherwise specified, the specific implementation methods of the indication information in this application may refer to the following implementation methods of the indication information corresponding to the i-th time-frequency resource.

[0161] In one possible implementation, among I time-frequency resources, the indication information corresponding to the i-th time-frequency resource may include at least one of starting time slot indication information of the i-th time-frequency resource, starting resource block indication information of the i-th time-frequency resource, pattern indication information of REs used for uplink interference measurement, and pattern indication information of the i-th time-frequency resource. Wherein, i is any positive integer between 1 and 1.

[0162] The following describes possible implementation methods for each of the above information:

[0163] (1) The starting time slot indication information of the i-th time-frequency resource and the starting resource block indication information of the i-th time-frequency resource

[0164] Exemplarily, the starting time slot indication information of the i-th time-frequency resource may include the index of the starting time slot of the i-th time-frequency resource, and the starting resource block indication information of the i-th time-frequency resource may include the index of the starting resource block of the i-th time-frequency resource.

[0165] It can be understood that if the first information includes S indication information, the starting time slot indication information of the i-th time-frequency resource is different from the starting time slot indication information of the p-th time-frequency resource, and the starting resource block indication information of the i-th time-frequency resource can be the same as or different from the starting resource block indication information of the p-th time-frequency resource. The i-th time-frequency resource and the p-th time-frequency resource both belong to S time domain resources, and p is a positive integer. In addition, the pattern indication information of the RE used for uplink interference measurement in the indication information corresponding to the i-th time-frequency resource and the pattern indication information of the RE used for uplink interference measurement in the p-th time-frequency resource can be the same or different. The pattern indication information of the i-th time-frequency resource in the indication information corresponding to the i-th time-frequency resource and the pattern indication information of the p-th time-frequency resource in the p-th time-frequency resource can be the same or different.

[0166] (2) RE pattern indication information used for uplink interference measurement

[0167] Exemplarily, the pattern of REs used for uplink interference measurement is used to determine the position of the REs used for uplink interference measurement in the measurement resource block. In one example, the pattern indication information of the REs used for uplink interference measurement includes the number of symbols, the starting symbol offset, the number of subcarriers, and the starting subcarrier offset. Among them, the number of symbols is the number of symbols occupied by the REs used for uplink interference measurement in one time slot, and the number of subcarriers is the number of subcarriers occupied by the REs used for uplink interference measurement in 12 consecutive subcarriers included in one RB. The number of REs used for uplink interference measurement is the product of the number of symbols and the number of subcarriers. The starting symbol offset is the offset of the starting symbol of the REs used for uplink interference measurement. For example, the starting symbol offset is the offset of the starting symbol of the REs used for uplink interference measurement relative to symbol 0 or symbol 13. In this application, only symbol 0 is used as an example for explanation. The starting subcarrier offset is the offset of the starting subcarrier of the REs used for uplink interference measurement. For example, the starting subcarrier offset is the offset of the starting subcarrier where the RE used for uplink interference measurement is located relative to subcarrier 0 or subcarrier 11. In this application, only subcarrier 0 is used as an example for description.

[0168] For example, assuming that the pattern indication information of REs used for uplink interference measurement includes symbol number symb_num = 2, starting symbol offset symb_start = 3, subcarrier number subc_num = 4, and starting subcarrier offset subc_start = 4, the pattern of REs used for uplink interference measurement is shown in Figure 10. In Figure 10, the horizontal axis represents symbols and the vertical axis represents subcarriers. Since each measurement resource block occupies one time slot in the time domain and one RB in the frequency domain, each measurement resource block occupies a total of 14 consecutive symbols and a total of 12 consecutive subcarriers. Based on symbol number symb_num = 2 and subcarrier number subc_num = 4, the number of REs used for uplink interference measurement is 2*4 = 8. Based on starting symbol offset symb_start = 3 and starting subcarrier offset subc_start = 4, the specific positions of the eight REs used for uplink interference measurement can be determined.

[0169] In another example, the pattern indicating information for REs used for uplink interference measurement includes the number of symbols, the starting symbol offset, the comb tooth size, and the starting subcarrier offset. For details about the number of symbols, the starting symbol offset, and the starting subcarrier offset, please refer to the above description and will not be repeated here. The number of REs used for uplink interference measurement is determined based on the number of symbols and the comb tooth size.

[0170] For example, assuming that the pattern indication information of REs used for uplink interference measurement includes symbol number symb_num = 12, starting symbol offset symb_start = 0, comb tooth size comb_size = 12, and starting subcarrier offset subc_start = 0, the pattern of REs used for uplink interference measurement is shown in Figure 11. In Figure 11, the horizontal axis represents symbols and the vertical axis represents subcarriers. Since each measurement resource block occupies one time slot in the time domain and one RB in the frequency domain, each measurement resource block occupies a total of 14 consecutive symbols and a total of 12 consecutive subcarriers. In Figure 11, based on symbol number symb_num = 12 and comb tooth size comb_size = 12, the number of REs used for uplink interference measurement is 12. Based on starting symbol offset symb_start = 0, starting subcarrier offset subc_start = 0, and comb tooth size comb_size = 12, the specific positions of the 12 REs used for uplink interference measurement can be determined.

[0171] (3) Pattern indication information of the i-th time-frequency resource

[0172] Exemplarily, the pattern of the i-th time-frequency resource is used to determine the positions of the K measurement resource blocks in the i-th time-frequency resource. The specific content included in the pattern indication information of the i-th time-frequency resource depends on how the pattern of the i-th time-frequency resource is determined.

[0173] Mode 1: If the pattern of the i-th time-frequency resource is pre-configured by the network device for the terminal device, the pattern indication information of the i-th time-frequency resource includes the index of the pattern of the i-th time-frequency resource.

[0174] Exemplarily, the network device pre-configures W time-frequency resource patterns for the terminal device, where W is a positive integer, and the W time-frequency resource patterns include a pattern for the i-th time-frequency resource. The network device may send first information to the terminal device, where the first information includes indication information corresponding to the i-th time-frequency resource, the indication information corresponding to the i-th time-frequency resource includes pattern indication information for the i-th time-frequency resource, and the pattern indication information for the i-th time-frequency resource includes an index of the pattern for the i-th time-frequency resource.

[0175] Mode 2: The pattern indication information of the i-th time-frequency resource includes parameters for determining the pattern of the i-th time-frequency resource.

[0176] Exemplarily, the pattern indication information of the i-th time-frequency resource may include the number M of consecutive time slots occupied by the i-th time-frequency resource in the time domain, the number N of consecutive RBs occupied in the frequency domain, the number K of measurement resource blocks included in the i-th time-frequency resource, and relevant parameters used to indicate the positions of the K measurement resource blocks, etc.

[0177] Mode 3: The pattern of the i-th time-frequency resource is determined according to the pattern of the repeated block in the i-th time-frequency resource, the number of repetitions C1 of the repeated block in the time domain, and the number of frequency domain repetitions C2 of the repeated block in the frequency domain.

[0178] A repetition block occupies m consecutive time slots in the time domain and n consecutive RBs in the frequency domain. The repetition block includes k measurement resource blocks. The repetition block pattern indicates the positions of the k measurement resource blocks in the repetition block. C1, C2, m, n, and k are positive integers, k ≤ m*n, M = m*C1, N = n*C2, and K = k*C1*C2.

[0179] As can be seen from the above-described method 3, the pattern of the i-th time-frequency resource is determined based on the pattern of the repetition block, the number of repetitions C1 of the repetition block in the time domain, and the number of frequency-domain repetitions C2 of the repetition block in the frequency domain. The number K of measurement resource blocks included in the i-th time-frequency resource is also determined based on the number k of measurement resource blocks included in the repetition block, the number of repetitions C1 of the repetition block in the time domain, and the number of frequency-domain repetitions C2 of the repetition block in the frequency domain.

[0180] In a possible implementation, the pattern indication information of the i-th time-frequency resource includes pattern indication information of a repetition block, a number of repetitions C1 of the repetition block in the time domain, and a number of repetitions C2 of the repetition block in the frequency domain.

[0181] It is understandable that the values ​​of C1 and C2 can be configured in advance for the network device, or agreed upon through a protocol, or configured independently for each time-frequency resource, and this application does not limit this.

[0182] For example, the pattern indication information of the repeated block may be determined in the following manner, but not limited to:

[0183] In mode A, the repetitive block pattern indication information includes an index of the repetitive block pattern, or a parameter for determining the repetitive block pattern.

[0184] Exemplarily, the network device may configure at least one repetition block pattern for the terminal device in advance. Furthermore, the repetition block pattern indication information sent by the network device to the terminal device may include an index of the repetition block pattern. Alternatively, the repetition block pattern indication information sent by the network device to the terminal device may include parameters for determining the repetition block pattern. For example, the parameters for determining the repetition block pattern may include the number m of consecutive time slots occupied by the repetition block in the time domain, the number n of consecutive RBs occupied in the frequency domain, the number k of measurement resource blocks included in the repetition block, and related parameters for indicating the positions of the k measurement resource blocks, etc.

[0185] For example, the pattern indication information for the i-th time-frequency resource includes the index of the pattern of the repetition block (IDX=1), the number of repetitions of the repetition block in the time domain C1=6, and the number of repetitions of the repetition block in the frequency domain C2=6. The pattern of the i-th time-frequency resource is shown in Figure 12. In Figure 12, the horizontal axis represents time slots, and the vertical axis represents RBs. The repetition block corresponding to IDX=1 occupies 4 consecutive time slots in the time domain, that is, m=4, and occupies 4 consecutive RBs in the frequency domain, that is, n=4. The repetition block corresponding to IDX=1 includes 4 measurement resource blocks, that is, k=4. It can be obtained that the i-th time-frequency resource occupies 24 consecutive time slots in the time domain, that is, M=m*C1=4*6=24, and 24 consecutive RBs in the frequency domain, that is, N=n*C2=4*6=24. The i-th time-frequency resource includes 48 measurement resource blocks, that is, K=k*C1*C2=4*6*6=144.

[0186] For another example, the pattern indication information for the i-th time-frequency resource includes the index of the pattern of the repetition block (IDX=2), the number of repetitions of the repetition block in the time domain C1=6, and the number of repetitions of the repetition block in the frequency domain C2=2. The pattern of the i-th time-frequency resource is shown in Figure 13. In Figure 13, the horizontal axis represents time slots, and the vertical axis represents RBs. The repetition block corresponding to IDX=2 occupies 4 consecutive time slots in the time domain, that is, m=4, and 12 consecutive RBs in the frequency domain, that is, n=12. The repetition block corresponding to IDX=2 includes 4 measurement resource blocks, that is, k=4. It can be obtained that the i-th time-frequency resource occupies 24 consecutive time slots in the time domain, that is, M=m*C1=4*6=24, and 24 consecutive RBs in the frequency domain, that is, N=n*C2=12*2=24. The i-th time-frequency resource includes 48 measurement resource blocks, that is, K=k*C1*C2=4*6*2=48.

[0187] For example, it is assumed that the first information includes one indication information and a period. The pattern of the time-frequency resources indicated by the one indication information is shown in FIG13 , and the corresponding pattern of REs used for uplink interference measurement is shown in FIG10 . The period T is 100 time slots, and the total number of resources used for uplink interference measurement in a single period is 24*100*12*14=403200 REs, where 24 represents 24 RBs, which means that the time-frequency resources occupy 24 consecutive RBs in the frequency domain, each RB includes 12 consecutive subcarriers, and 100 represents 100 time slots, which is the total number of time slots included in a single period, and each time slot includes 14 consecutive symbols.

[0188] As shown in FIG10 , the number of REs used for uplink interference measurement in each measurement block is 2*4=8. As shown in FIG13 , the time-frequency resources include 48 measurement resource blocks, and the total number of resources used for uplink interference measurement is 48*8=384 REs.

[0189] Therefore, the resource overhead of uplink interference measurement is only 384 / 403200=0.095%, which is 99.24% lower than 12.5% ​​in the prior art, where 1-0.095 / 12.5=99.24%.

[0190] It can be understood that if the number of repetitions of the repetition block in the time domain C1=1 and the number of repetitions of the repetition block in the frequency domain C2=1, then the pattern of the i-th time-frequency resource is the pattern of the repetition block.

[0191] By adopting the above-mentioned method A, low-overhead design of resources can be achieved while reducing signaling overhead.

[0192] In mode B, the pattern indication information of the repeated block includes pattern indication information of the first time-frequency resource unit and pattern indication information of the second time-frequency resource unit. The pattern indication information of the first time-frequency resource unit includes an index of the pattern of the first time-frequency resource unit or a parameter used to determine the pattern of the first time-frequency resource unit, and the pattern indication information of the second time-frequency resource unit includes an index of the pattern of the second time-frequency resource unit or a parameter used to determine the pattern of the second time-frequency resource unit.

[0193] At this time, the pattern of the repeated block is determined according to the pattern of the first time-frequency resource unit and the pattern of the second time-frequency resource unit, wherein the first time-frequency resource unit occupies m1 consecutive time slots in the time domain and n1 consecutive RBs in the frequency domain, the first time-frequency resource unit includes s1 measurement resource blocks, the second time-frequency resource unit occupies m2 consecutive time slots in the time domain and n2 consecutive RBs in the frequency domain, the second time-frequency resource unit includes s2 measurement resource blocks, m1, m2, n1, n2, s1 and s2 are positive integers, k = s1*s2, m = m1*m2, n = n1*n2.

[0194] The pattern of the first time-frequency resource unit is used to indicate the positions of s1 measurement resource blocks in the first time-frequency resource unit, and the pattern of the second time-frequency resource unit is used to indicate the positions of s2 measurement resource blocks in the second time-frequency resource unit. Exemplarily, in the second time-frequency resource unit, m2 = n2 = s2, and the s2 measurement resource blocks do not overlap in either the time domain or the frequency domain.

[0195] For example, the horizontal axis represents time slots, and the vertical axis represents RBs. FIG14 is a schematic diagram of a pattern of a first time-frequency resource unit, and FIG15 is a schematic diagram of a pattern of a second time-frequency resource unit. Where idx1 represents the index of the pattern of the first time-frequency resource unit, and idx2 represents the index of the pattern of the second time-frequency resource unit. idx2=0 indicates that the second time-frequency resource unit does not exist. In this case, the pattern of the first time-frequency resource unit is the pattern of the repeated block.

[0196] The above method B is described in detail below with reference to specific examples:

[0197] Example a: Assume that the pattern indication information of the i-th time-frequency resource includes the index of the pattern of the first time-frequency resource unit (idx1=0), the index of the pattern of the second time-frequency resource unit (idx2=10), the number of repetitions of the repeated block in the time domain C1=6, and the number of repetitions of the repeated block in the frequency domain C2=6.

[0198] The pattern of the first time-frequency resource unit can be determined based on Figure 14 and idx1 = 0, and the pattern of the second time-frequency resource unit can be determined based on Figure 15 and idx2 = 10. Furthermore, a pattern of repeated blocks can be obtained, as shown in the upper figure of Figure 16. The horizontal axis represents time slots, and the vertical axis represents RBs. The first time-frequency resource unit corresponding to idx1 = 0 occupies one time slot in the time domain, that is, m1 = 1, and occupies one RB in the frequency domain, that is, n1 = 1. The first time-frequency resource unit corresponding to idx1 = 0 includes one measurement resource block, that is, s1 = 1. The second time-frequency resource unit corresponding to idx2=10 occupies 4 consecutive time slots in the time domain, that is, m2=4, and occupies 4 consecutive RBs in the frequency domain, that is, n2=4. The second time-frequency resource unit corresponding to idx2=10 includes 4 measurement resource blocks, that is, s2=4. It can be obtained that the repetition block occupies 4 consecutive time slots in the time domain, that is, m=m1*m2=1*4=4, and occupies 4 consecutive RBs in the frequency domain, that is, n=n1*n2=1*4=4. The repetition block includes 4 measurement resource blocks, that is, k=s1*s2=1*4=4.

[0199] Furthermore, the pattern of the i-th time-frequency resource is shown in the lower figure in 16. The i-th time-frequency resource occupies 24 consecutive time slots in the time domain, that is, M = m*C1 = 4*6 = 24, and 24 consecutive RBs in the frequency domain, that is, N = n*C2 = 4*6 = 24. The i-th time-frequency resource includes 144 measurement resource blocks, that is, K = k*C1*C2 = 4*6*6 = 144.

[0200] Example b: Assume that the pattern indication information of the i-th time-frequency resource includes the index of the pattern of the first time-frequency resource unit (idx1=1), the index of the pattern of the second time-frequency resource unit (idx2=10), the number of repetitions of the repeated block in the time domain C1=6, and the number of repetitions of the repeated block in the frequency domain C2=2.

[0201] The pattern of the first time-frequency resource unit can be determined based on Figure 14 and idx1=1, and the pattern of the second time-frequency resource unit can be determined based on Figure 15 and idx2=10. Furthermore, a pattern of repeated blocks can be obtained, as shown in the upper figure of Figure 17. The horizontal axis represents time slots, and the vertical axis represents RBs. The first time-frequency resource unit corresponding to idx1=1 occupies one time slot in the time domain, that is, m1=1, and occupies three consecutive RBs in the frequency domain, that is, n1=3. The first time-frequency resource unit corresponding to idx1=1 includes one measurement resource block, that is, s1=1. The second time-frequency resource unit corresponding to idx2=10 occupies 4 consecutive time slots in the time domain, that is, m2=4, and occupies 4 consecutive RBs in the frequency domain, that is, n2=4. The second time-frequency resource unit corresponding to idx2=10 includes 4 measurement resource blocks, that is, s2=4. It can be obtained that the repetition block occupies 4 consecutive time slots in the time domain, that is, m=m1*m2=1*4=4, and occupies 12 consecutive RBs in the frequency domain, that is, n=n1*n2=3*4=12. The repetition block includes 4 measurement resource blocks, that is, k=s1*s2=1*4=4.

[0202] Furthermore, the pattern of the i-th time-frequency resource is shown in the lower figure in 17. The i-th time-frequency resource occupies 24 consecutive time slots in the time domain, that is, M = m*C1 = 4*6 = 24, and 24 consecutive RBs in the frequency domain, that is, N = n*C2 = 12*2 = 24. The i-th time-frequency resource includes 48 measurement resource blocks, that is, K = k*C1*C2 = 4*6*2 = 48.

[0203] Example c: Assume that the pattern indication information of the i-th time-frequency resource includes the index of the pattern of the first time-frequency resource unit (idx1=2), the index of the pattern of the second time-frequency resource unit (idx2=14), the number of repetitions of the repeated block in the time domain C1=2, and the number of repetitions of the repeated block in the frequency domain C2=6.

[0204] The pattern of the first time-frequency resource unit can be determined based on Figure 14 and idx1=2, and the pattern of the second time-frequency resource unit can be determined based on Figure 15 and idx2=14. Furthermore, a pattern of repeated blocks can be obtained, as shown in the upper figure of Figure 18. The horizontal axis represents time slots, and the vertical axis represents RBs. The first time-frequency resource unit corresponding to idx1=2 occupies 3 time slots in the time domain, that is, m1=3, and occupies 1 RB in the frequency domain, that is, n1=1. The first time-frequency resource unit corresponding to idx1=2 includes 1 measurement resource block, that is, s1=1. The second time-frequency resource unit corresponding to idx2=14 occupies 4 consecutive time slots in the time domain, that is, m2=4, and occupies 4 consecutive RBs in the frequency domain, that is, n2=4. The second time-frequency resource unit corresponding to idx2=10 includes 4 measurement resource blocks, that is, s2=4. It can be obtained that the repetition block occupies 12 consecutive time slots in the time domain, that is, m=m1*m2=3*4=12, and occupies 4 consecutive RBs in the frequency domain, that is, n=n1*n2=1*4=4. The repetition block includes 4 measurement resource blocks, that is, k=s1*s2=1*4=4.

[0205] Furthermore, the pattern of the i-th time-frequency resource is shown in the lower figure in 18. The i-th time-frequency resource occupies 24 consecutive time slots in the time domain, that is, M = m*C1 = 12*2 = 24, and 24 consecutive RBs in the frequency domain, that is, N = n*C2 = 4*6 = 24. The i-th time-frequency resource includes 48 measurement resource blocks, that is, K = k*C1*C2 = 4*2*6 = 48.

[0206] Example d: Assume that the pattern indication information of the i-th time-frequency resource includes the index of the pattern of the first time-frequency resource unit (idx1=3), the index of the pattern of the second time-frequency resource unit (idx2=14), the number of repetitions of the repeated block in the time domain C1=2, and the number of repetitions of the repeated block in the frequency domain C2=2.

[0207] The pattern of the first time-frequency resource unit can be determined based on Figure 14 and idx1=3, and the pattern of the second time-frequency resource unit can be determined based on Figure 15 and idx2=14. Furthermore, a pattern of repeated blocks can be obtained, as shown in the upper figure of Figure 19. The horizontal axis represents time slots, and the vertical axis represents RBs. The first time-frequency resource unit corresponding to idx1=3 occupies three consecutive time slots in the time domain, that is, m1=3, and occupies three consecutive RBs in the frequency domain, that is, n1=3. The first time-frequency resource unit corresponding to idx1=3 includes one measurement resource block, that is, s1=1. The second time-frequency resource unit corresponding to idx2=14 occupies 4 consecutive time slots in the time domain, that is, m2=4, and occupies 4 consecutive RBs in the frequency domain, that is, n2=4. The second time-frequency resource unit corresponding to idx2=10 includes 4 measurement resource blocks, that is, s2=4. It can be obtained that the repetition block occupies 12 consecutive time slots in the time domain, that is, m=m1*m2=3*4=12, and occupies 12 consecutive RBs in the frequency domain, that is, n=n1*n2=3*4=12. The repetition block includes 4 measurement resource blocks, that is, k=s1*s2=1*4=4.

[0208] Furthermore, the pattern of the i-th time-frequency resource is shown in the lower figure in 19. The i-th time-frequency resource occupies 24 consecutive time slots in the time domain, that is, M = m*C1 = 12*2 = 24, and 24 consecutive RBs in the frequency domain, that is, N = n*C2 = 12*2 = 24. The i-th time-frequency resource includes 16 measurement resource blocks, that is, K = k*C1*C2 = 4*2*2 = 16.

[0209] Example e: Assume that the pattern indication information of the i-th time-frequency resource includes the index of the pattern of the first time-frequency resource unit (idx1=4), the index of the pattern of the second time-frequency resource unit (idx2=0), the number of repetitions of the repeated block in the time domain C1=1, and the number of repetitions of the repeated block in the frequency domain C2=6. Alternatively, assume that the pattern indication information of the i-th time-frequency resource includes the index of the pattern of the repeated block (IDX=0), the number of repetitions of the repeated block in the time domain C1=1, and the number of repetitions of the repeated block in the frequency domain C2=6.

[0210] The pattern of the first time-frequency resource unit can be determined based on FIG14 and idx1=4, and idx2=0 indicates that the pattern of the second time-frequency resource unit is empty, which is recorded as 1. Furthermore, the pattern of the repeated block can be obtained, as shown in the upper figure in FIG20. It can be understood that when idx2=0, the pattern of the first time-frequency resource unit is the pattern of the repeated block.

[0211] The horizontal axis represents time slots, and the vertical axis represents resource blocks (RBs). The first time-frequency resource unit corresponding to idx1=4 occupies one time slot in the time domain, i.e., m1=1, and occupies two consecutive RBs in the frequency domain, i.e., n1=2. The first time-frequency resource unit corresponding to idx1=4 includes two measurement resource blocks, i.e., s1=2. Therefore, the repetition block occupies one time slot in the time domain, i.e., m=m1=1, and occupies two consecutive RBs in the frequency domain, i.e., n=n1=2. The repetition block includes two measurement resource blocks, i.e., k=s1=2.

[0212] Furthermore, the pattern of the i-th time-frequency resource is shown in the lower figure in 20. The i-th time-frequency resource occupies 1 time slot in the time domain, that is, M = m*C1 = 1*1 = 1, and occupies 12 consecutive RBs in the frequency domain, that is, N = n*C2 = 2*6 = 12. The i-th time-frequency resource includes 12 measurement resource blocks, that is, K = k*C1*C2 = 2*1*6 = 12.

[0213] It should be understood that the above examples are merely examples and are not intended to limit the present application.

[0214] In one possible design, the pattern of the first time-frequency resource unit is determined according to the rate of change of the power of the uplink interference signal in the frequency domain and / or time domain.

[0215] For example, the rate of change of the uplink interference signal in the frequency domain can be determined based on the interference power corresponding to each adjacent RB. If the interference power corresponding to each adjacent RB is less than a first preset threshold, that is, the frequency-selective characteristic of the uplink interference is not obvious, the overhead of the measurement block in the frequency domain can be reduced by adjusting the pattern of the first time-frequency unit.

[0216] For example, assuming that the pattern of the i-th time-frequency resource configured by the network device for the terminal device is shown in Figure 16, if the network device obtains the interference power corresponding to the adjacent RBs through measurement over a period of time, and determines that the frequency domain change rate of the interference power corresponding to the adjacent RBs is less than a first preset threshold based on the interference power corresponding to the adjacent RBs, the network device can reconfigure the time-frequency resources and reduce the overhead of the measurement block in the frequency domain by adjusting the pattern of the first time-frequency unit. For example, the index of the pattern of the first time-frequency unit is changed from idx1=0 to idx1=1, so that the pattern of the reconfigured time-frequency resources is as shown in Figure 17. Compared with Figure 16, the distribution of the measurement blocks in Figure 17 is sparser in the frequency domain, which can further save the resource overhead used for uplink interference measurement.

[0217] For example, the rate of change of the uplink interference signal in the time domain can be determined based on the interference power corresponding to adjacent time slots. If the interference power corresponding to adjacent time slots is less than a second preset threshold, that is, the time-varying characteristics of the uplink interference are not obvious, the overhead of the measurement block in the time domain can be reduced by adjusting the pattern of the first time-frequency unit.

[0218] Example 1: Assume that the pattern of the i-th time-frequency resource configured by the network device for the terminal device is as shown in FIG16. If the network device obtains the interference power corresponding to each adjacent time slot through measurement over a period of time, and determines that the time-domain change rate of the interference power is less than a second preset threshold value based on the interference power corresponding to each adjacent time slot, the network device can reconfigure the time-frequency resources by adjusting the pattern of the first time-frequency unit to reduce the overhead of the measurement block in the time domain. For example, the index of the pattern of the first time-frequency unit is changed from idx1=0 to idx1=2, and the index of the pattern of the second time-frequency unit is changed from idx2=10 to idx2=14, so that the pattern of the reconfigured time-frequency resources is as shown in FIG18. Compared with FIG16, the distribution of the measurement blocks in FIG18 is sparser in the time domain, which can further save the resource overhead used for uplink interference measurement.

[0219] Example 2: Assume that the pattern of the i-th time-frequency resource configured by the network device for the terminal device is shown in Figure 16. If the network device determines through measurements over a period of time that the frequency domain change rate of the interference power is less than a first preset threshold and the time domain change rate of the interference power is less than a second preset threshold, the network device can reconfigure the time-frequency resources by adjusting the pattern of the first time-frequency unit to reduce the overhead of the measurement block in the time and frequency domains. For example, the index of the pattern of the first time-frequency unit is changed from idx1=0 to idx1=3, and the index of the pattern of the second time-frequency unit is changed from idx2=10 to idx2=14, so that the pattern of the reconfigured time-frequency resources is as shown in Figure 19. Compared with Figure 16, the distribution of the measurement blocks in Figure 19 is relatively sparse in both the time and frequency domains, which can further save the resource overhead used for uplink interference measurement.

[0220] It can be understood that in the above examples 1 and 2, changing the index of the pattern of the second time-frequency unit from idx2=10 to idx2=14 does not affect resource overhead, and the index of the pattern of the second time-frequency unit may not be modified.

[0221] Adopting the above-described method B can achieve low resource overhead and diversification, and can also reduce signaling overhead. The network device can select an appropriate pattern of the first resource unit and the second resource unit based on the results of the uplink interference measurement, thereby obtaining the desired repeated block and time-frequency resource pattern, optimizing resource allocation, and further reducing resource overhead.

[0222] In summary, in this application, the REs used for uplink interference measurement do not occupy the total number of REs included in each measurement resource block, making the RE distribution in the time-frequency domain sparse, which can reduce resource overhead. Furthermore, by configuring repeated blocks and setting the number of repetitions of repeated blocks in the time-frequency domain, the distribution of measurement blocks can be made to have the characteristics of longer time and more frequency bands. Therefore, it is possible to measure uplink interference signals in a larger range of time-frequency domains and obtain the statistical characteristics of uplink interference signals in the time-frequency domain.

[0223] In addition, uplink interference has beam-level characteristics, that is, for a single-satellite multi-beam scenario, the satellite is subject to different interference in different beam directions. Therefore, each time-frequency resource can be mapped to a beam direction. The beam direction here refers to the direction of the receiving beam of the network device. For example, the i-th time-frequency resource is associated with the j-th beam, and the network device measures the uplink interference on the i-th time-frequency resource, thereby obtaining the uplink interference measurement result in the beam direction of the j-th beam, where j is a positive integer.

[0224] It is understood that in order to implement the functions in the above embodiments, the network devices and terminal devices include hardware structures and / or software modules corresponding to the execution of each function. Those skilled in the art should readily appreciate that, in combination with the units and method steps of each example described in the embodiments disclosed in this application, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in hardware or in a manner driven by computer software depends on the specific application scenario and design constraints of the technical solution.

[0225] Figures 21 and 22 are schematic diagrams of the structures of possible communication devices provided in embodiments of the present application. These communication devices can be used to implement the functions of the terminal device or network device in the above method embodiments, and thus can also achieve the beneficial effects possessed by the above method embodiments. In the embodiments of the present application, the communication device can be one of 120a-120g as shown in Figure 1, or 110a, 110b, 110c as shown in Figure 1, or a module (such as a chip) applied to a terminal device or base station.

[0226] As shown in Figure 21, a communication device 2100 includes a processing unit 2110 and a transceiver unit 2120. The communication device 2100 is used to implement the functions of the terminal device or network device in the method embodiment shown in Figure 2 above.

[0227] When the communication device 2100 is used to implement the functions of the network device in the method embodiment shown in FIG9 :

[0228] The transceiver unit 2120 is configured to send first information to the terminal device, where the first information is used to indicate at least one time-frequency resource, where I time-frequency resources in the at least one time-frequency resource respectively occupy M consecutive time slots in the time domain and N consecutive resource blocks (RBs) in the frequency domain, and each of the I time-frequency resources includes K measurement resource blocks, where each measurement resource block occupies one time slot in the time domain and one RB in the frequency domain, and the number of resource elements (REs) used for uplink interference measurement in each measurement resource block is less than the total number of REs included in each measurement resource block, where M, N, K, and I are positive integers and K≤M*N.

[0229] The processing unit 2110 calls the transceiver unit 2120 to execute: measuring an uplink interference signal on a resource unit used for uplink interference measurement in each measurement resource block.

[0230] When the communication device 2100 is used to implement the functions of the terminal device in the method embodiment shown in FIG9 :

[0231] The transceiver unit 2120 is configured to receive first information from a network device, where the first information is used to indicate at least one time-frequency resource, where I time-frequency resources in the at least one time-frequency resource respectively occupy M consecutive time slots in the time domain and N consecutive resource blocks (RBs) in the frequency domain, each of the I time-frequency resources includes K measurement resource blocks, each measurement resource block occupies one time slot in the time domain and one RB in the frequency domain, and the number of resource elements (REs) used for uplink interference measurement in each measurement resource block is less than the total number of REs included in each measurement resource block, where M, N, K, and I are positive integers, and K≤M*N.

[0232] The processing unit 2110 is configured to determine not to send a signal on a resource element used for uplink interference measurement in each measurement resource block.

[0233] A more detailed description of the processing unit 2110 and the transceiver unit 2120 can be directly obtained by referring to the relevant description in the method embodiment shown in FIG9 , and is not repeated here.

[0234] As shown in Figure 22, communication device 2200 includes a processor 2210 and an interface circuit 2220. Processor 2210 and interface circuit 2220 are coupled to each other. It will be appreciated that interface circuit 2220 may be a transceiver or an input / output interface. Optionally, communication device 2200 may further include a memory 2230 for storing instructions executed by processor 2210, input data required by processor 2210 to execute instructions, or data generated by processor 2210 after executing instructions.

[0235] When the communication device 2200 is used to implement the method shown in FIG. 9 , the processor 2210 is used to implement the functions of the processing unit 2110 , and the interface circuit 2220 is used to implement the functions of the transceiver unit 2120 .

[0236] When the communication device is a chip used in a terminal device, the chip of the terminal device implements the functions of the terminal device in the above method embodiments. The terminal device chip receives information from other modules in the terminal device (such as a radio frequency module or antenna), and the information is sent by the network device to the terminal device; or the terminal device chip sends information to other modules in the terminal device (such as a radio frequency module or antenna), and the information is sent by the terminal device to the network device.

[0237] When the above-mentioned communication device is a module applied to a network device, the network device module implements the functions of the network device in the above-mentioned method embodiment. The network device module receives information from other modules in the network device (such as a radio frequency module or an antenna), and the information is sent by the terminal device to the network device; or the network device module sends information to other modules in the network device (such as a radio frequency module or an antenna), and the information is sent by the network device to the terminal device. The network device module here can be a baseband chip of the network device, or it can be a DU or other module. The DU here can be a DU under the open radio access network (O-RAN) architecture.

[0238] It is understood that the processor in the embodiments of the present application may be a central processing unit (CPU), or may be other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field programmable gate arrays (FPGA), or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. The general-purpose processor may be a microprocessor or any conventional processor.

[0239] In this application, another example of a device is provided, which includes at least one processor and at least one memory, the at least one processor and the at least one memory being coupled, the at least one memory being used to store instructions. When the instructions are executed by the at least one processor, the communication device executes the method in the above embodiment. Taking the communication device including a processor and a memory as an example, as shown in Figure 22, the communication device 2200 includes a processor 2210 and a memory 2230. The processor 2210 and the memory 2230 are coupled, and the memory 2230 stores instructions. When the instructions stored in the memory 2230 are executed by the processor 2210, the communication device 2200 executes the method executed by the network device or terminal device in the above embodiment.

[0240] The method steps in the embodiments of the present application can be implemented in hardware or in software instructions that can be executed by a processor. The software instructions can be composed of corresponding software modules, and the software modules can be stored in random access memory, flash memory, read-only memory, programmable read-only memory, erasable programmable read-only memory, electrically erasable programmable read-only memory, registers, hard disk, mobile hard disk, CD-ROM or any other form of storage medium well known in the art. An exemplary storage medium is coupled to the processor so that the processor can read information from the storage medium and write information to the storage medium. The storage medium can also be an integral part of the processor. The processor and storage medium can be located in an ASIC. In addition, the ASIC can be located in a network device or a terminal device. The processor and storage medium can also be present in a network device or a terminal device as discrete components.

[0241] In the above embodiments, all or part of the embodiments may be implemented using software, hardware, firmware, or any combination thereof. When implemented using software, all or part of the embodiments may be implemented in the form of a computer program product. The computer program product includes one or more computer programs or instructions. When the computer program or instructions are loaded and executed on a computer, the processes or functions described in the embodiments of the present application are performed in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, a network device, a user device, or other programmable device. The computer program or instructions may be stored in a computer-readable storage medium or transferred from one computer-readable storage medium to another. For example, the computer program or instructions may be transferred from one website, computer, server, or data center to another website, computer, server, or data center via wired or wireless means. The computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or data center that integrates one or more available media. The available medium may be a magnetic medium, such as a floppy disk, hard disk, or magnetic tape; an optical medium, such as a digital video disk; or a semiconductor medium, such as a solid-state drive. The computer-readable storage medium may be a volatile or nonvolatile storage medium, or may include both volatile and nonvolatile types of storage media.

[0242] In the various embodiments of the present application, unless otherwise specified or there is a logical conflict, the terms and / or descriptions between different embodiments are consistent and can be referenced by each other. The technical features in different embodiments can be combined to form new embodiments according to their inherent logical relationships.

[0243] In this application, "at least one" means one or more, and "more" means two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone, where A and B can be singular or plural. In the text description of this application, the character " / " generally indicates that the previous and next associated objects are in an "or" relationship; in the formula of this application, the character " / " indicates that the previous and next associated objects are in a "division" relationship. "Including at least one of A, B and C" can mean: including A; including B; including C; including A and B; including A and C; including B and C; including A, B and C.

[0244] It is understood that the various numbers used in the embodiments of this application are merely for ease of description and are not intended to limit the scope of the embodiments of this application. The order of the sequence numbers of the above-mentioned processes does not necessarily imply a specific order of execution; the order of execution of the processes should be determined by their functions and inherent logic.

Claims

1. A method for measuring uplink interference, characterized in that: The method includes: The network device sends first information to the terminal device, where the first information is used to indicate at least one time-frequency resource, where I time-frequency resources of the at least one time-frequency resource respectively occupy M consecutive time slots in the time domain and N consecutive resource blocks RB in the frequency domain, and each of the I time-frequency resources includes K measurement resource blocks, each measurement resource block occupies 1 time slot in the time domain and 1 RB in the frequency domain, and the number of resource units RE used for uplink interference measurement in each measurement resource block is less than the total number of REs included in each measurement resource block, where M, N, K, and I are positive integers, and K≤M*N; The network device measures an uplink interference signal on a resource unit used for uplink interference measurement in each measurement resource block.

2. A method for measuring uplink interference, characterized in that: The method includes: The terminal device receives first information from the network device, where the first information is used to indicate at least one time-frequency resource, where I time-frequency resources in the at least one time-frequency resource occupy M consecutive time slots in the time domain and N RBs in the frequency domain, and each of the I time-frequency resources includes K measurement resource blocks, each measurement resource block occupies 1 time slot in the time domain and 1 RB in the frequency domain, and the number of REs used for uplink interference measurement in each measurement resource block is less than the total number of REs included in each measurement resource block, where M, N, K, and I are positive integers, and K≤M*N; The terminal device does not send a signal on a resource unit used for uplink interference measurement in each measurement resource block.

3. The method according to claim 1 or 2, characterized in that The first information includes S indication information, each indication information indicates a time-frequency resource, the S indication information corresponds to the S time-frequency resources one by one, S is a positive integer greater than or equal to 1, and when the value of S is greater than or equal to 2, the S time-frequency resources are different from each other; Alternatively, the at least one time-frequency resource is a periodic time-frequency resource, and the first information includes one indication information and a period, the one indication information indicates one time-frequency resource, and the period is the period of the time-frequency resource indicated by the one indication information.

4. The method according to any one of claims 1 to 3, characterized in that: In the I time-frequency resources, the indication information corresponding to the i-th time-frequency resource includes at least one of the starting time slot indication information of the i-th time-frequency resource, the starting resource block indication information of the i-th time-frequency resource, the pattern indication information of the i-th time-frequency resource, and the pattern indication information of the RE used for uplink interference measurement; The pattern of the i-th time-frequency resource is used to determine the positions of the K measurement resource blocks in the i-th time-frequency resource, and the pattern of the RE for uplink interference measurement is used to determine the position of the RE for uplink interference measurement in the measurement resource block; Wherein, the i is any positive integer from 1 to I.

5. The method according to any one of claims 1 to 4, characterized in that: In the I time-frequency resources, the pattern of the i-th time-frequency resource is determined according to the pattern of the repetition block in the i-th time-frequency resource, the number of repetitions C1 of the repetition block in the time domain, and the number of frequency-domain repetitions C2 of the repetition block in the frequency domain; The repetition block occupies m consecutive time slots in the time domain and n consecutive RBs in the frequency domain; the repetition block includes k measurement resource blocks; the pattern of the repetition block is used to indicate the positions of the k measurement resource blocks in the repetition block; Wherein, C1, C2, m, n and k are positive integers, k≤m*n, M=m*C1, N=n*C2, K=k*C1*C2; Wherein, the i is any positive integer from 1 to I.

6. The method according to claim 5, characterized in that The pattern indication information of the i-th time-frequency resource includes the pattern indication information of the repetition block, the number of repetitions C1 of the repetition block in the time domain and the number of repetitions C2 of the repetition block in the frequency domain.

7. The method according to claim 6, characterized in that The pattern indication information of the repetitive block includes an index of the pattern of the repetitive block, or a parameter used to determine the pattern of the repetitive block.

8. The method according to claim 5 or 6, characterized in that The pattern of the repeated block is determined according to the pattern of the first time-frequency resource unit and the pattern of the second time-frequency resource unit, wherein the first time-frequency resource unit occupies m1 consecutive time slots in the time domain and n1 consecutive RBs in the frequency domain, the first time-frequency resource unit includes s1 measurement resource blocks, the second time-frequency resource unit occupies m2 consecutive time slots in the time domain and n2 consecutive RBs in the frequency domain, the second time-frequency resource unit includes s2 measurement resource blocks, m1, m2, n1, n2, s1 and s2 are positive integers, k=s1*s2, m=m1*m2, n=n1*n2; The pattern of the first time-frequency resource unit is used to indicate the positions of the s1 measurement resource blocks in the first time-frequency resource unit; The pattern of the second time-frequency resource unit is used to indicate the positions of the s2 measurement resource blocks in the second time-frequency resource unit.

9. The method according to claim 8, characterized in that In the second time-frequency resource unit, m2=n2=s2, and the s2 measurement resource blocks have no overlap in both the time domain and the frequency domain.

10. The method according to claim 8 or 9, characterized in that The pattern of the first time-frequency resource unit is determined according to a rate of change of the power of the uplink interference signal in the frequency domain and / or the time domain.

11. The method according to any one of claims 8 to 10, characterized in that: The pattern indication information of the repeated block includes the pattern indication information of the first time-frequency resource unit and the pattern indication information of the second time-frequency resource unit; The pattern indication information of the first time-frequency resource unit includes an index of the pattern of the first time-frequency resource unit or a parameter used to determine the pattern of the first time-frequency resource unit, and the pattern indication information of the second time-frequency resource unit includes an index of the pattern of the second time-frequency resource unit or a parameter used to determine the pattern of the second time-frequency resource unit.

12. The method according to any one of claims 4 to 11, characterized in that: The pattern indication information of the RE used for uplink interference measurement includes the number of symbols, the starting symbol offset, the number of subcarriers, and the starting subcarrier offset; Alternatively, the pattern indication information of the RE used for uplink interference measurement includes the number of symbols, the starting symbol offset, the comb tooth size, and the starting subcarrier offset.

13. An uplink interference measurement device, characterized in that: The device includes: A transceiver unit, configured to send first information to a terminal device, wherein the first information is used to indicate at least one time-frequency resource, wherein I time-frequency resources of the at least one time-frequency resource respectively occupy M consecutive time slots in the time domain and N consecutive resource blocks RB in the frequency domain, and each of the I time-frequency resources includes K measurement resource blocks, each measurement resource block occupies 1 time slot in the time domain and 1 RB in the frequency domain, and the number of resource units RE used for uplink interference measurement in each measurement resource block is less than the total number of REs included in each measurement resource block, wherein M, N, K, and I are positive integers, and K≤M*N; The processing unit calls the transceiver unit to execute: measuring the uplink interference signal on the resource unit used for uplink interference measurement in each measurement resource block.

14. An uplink interference measurement device, characterized in that: The device includes: A transceiver unit, configured to receive first information from a network device, wherein the first information is used to indicate at least one time-frequency resource, wherein I time-frequency resources of the at least one time-frequency resource respectively occupy M consecutive time slots in the time domain and N consecutive resource blocks RB in the frequency domain, wherein each of the I time-frequency resources includes K measurement resource blocks, wherein each measurement resource block occupies 1 time slot in the time domain and 1 RB in the frequency domain, and the number of resource units RE used for uplink interference measurement in each measurement resource block is less than the total number of REs included in each measurement resource block, wherein M, N, K, and I are positive integers, and K≤M*N; The processing unit is used to determine not to send a signal on a resource unit used for uplink interference measurement in each measurement resource block.

15. The device according to claim 13 or 14, characterized in that The first information includes S indication information, each indication information indicates a time-frequency resource, the S indication information corresponds to the S time-frequency resources one by one, S is a positive integer greater than or equal to 1, and when the value of S is greater than or equal to 2, the S time-frequency resources are different from each other; Alternatively, the at least one time-frequency resource is a periodic time-frequency resource, and the first information includes one indication information and a period, the one indication information indicates one time-frequency resource, and the period is the period of the time-frequency resource indicated by the one indication information.

16. The device according to any one of claims 13 to 15, characterized in that: In the I time-frequency resources, the indication information corresponding to the i-th time-frequency resource includes at least one of the starting time slot indication information of the i-th time-frequency resource, the starting resource block indication information of the i-th time-frequency resource, the pattern indication information of the i-th time-frequency resource, and the pattern indication information of the RE used for uplink interference measurement; The pattern of the i-th time-frequency resource is used to determine the positions of the K measurement resource blocks in the i-th time-frequency resource, and the pattern of the RE for uplink interference measurement is used to determine the position of the RE for uplink interference measurement in the measurement resource block; Wherein, the i is any positive integer from 1 to I.

17. The device according to any one of claims 13 to 16, characterized in that: In the I time-frequency resources, the pattern of the i-th time-frequency resource is determined according to the pattern of the repetition block in the i-th time-frequency resource, the number of repetitions C1 of the repetition block in the time domain, and the number of frequency-domain repetitions C2 of the repetition block in the frequency domain; The repetition block occupies m consecutive time slots in the time domain and n consecutive RBs in the frequency domain; the repetition block includes k measurement resource blocks; the pattern of the repetition block is used to indicate the positions of the k measurement resource blocks in the repetition block; Wherein, C1, C2, m, n and k are positive integers, k≤m*n, M=m*C1, N=n*C2, K=k*C1*C2; Wherein, the i is any positive integer from 1 to I.

18. The device according to claim 17, characterized in that The pattern indication information of the i-th time-frequency resource includes the pattern indication information of the repetition block, the number of repetitions C1 of the repetition block in the time domain and the number of repetitions C2 of the repetition block in the frequency domain.

19. The device according to claim 18, characterized in that The pattern indication information of the repetitive block includes an index of the pattern of the repetitive block, or a parameter used to determine the pattern of the repetitive block.

20. The device according to claim 17 or 18, characterized in that The pattern of the repeated block is determined according to the pattern of the first time-frequency resource unit and the pattern of the second time-frequency resource unit, wherein the first time-frequency resource unit occupies m1 consecutive time slots in the time domain and n1 consecutive RBs in the frequency domain, the first time-frequency resource unit includes s1 measurement resource blocks, the second time-frequency resource unit occupies m2 consecutive time slots in the time domain and n2 consecutive RBs in the frequency domain, the second time-frequency resource unit includes s2 measurement resource blocks, m1, m2, n1, n2, s1 and s2 are positive integers, k=s1*s2, m=m1*m2, n=n1*n2; The pattern of the first time-frequency resource unit is used to indicate the positions of the s1 measurement resource blocks in the first time-frequency resource unit; The pattern of the second time-frequency resource unit is used to indicate the positions of the s2 measurement resource blocks in the second time-frequency resource unit.

21. The device according to claim 20, characterized in that In the second time-frequency resource unit, m2=n2=s2, and the s2 measurement resource blocks have no overlap in both the time domain and the frequency domain.

22. The device according to claim 20 or 21, characterized in that The pattern of the first time-frequency resource unit is determined according to a rate of change of the power of the uplink interference signal in the frequency domain and / or the time domain.

23. The device according to any one of claims 20 to 22, characterized in that The pattern indication information of the repeated block includes the pattern indication information of the first time-frequency resource unit and the pattern indication information of the second time-frequency resource unit; The pattern indication information of the first time-frequency resource unit includes an index of the pattern of the first time-frequency resource unit or a parameter used to determine the pattern of the first time-frequency resource unit, and the pattern indication information of the second time-frequency resource unit includes an index of the pattern of the second time-frequency resource unit or a parameter used to determine the pattern of the second time-frequency resource unit.

24. The device according to any one of claims 16 to 23, characterized in that The pattern indication information of the RE used for uplink interference measurement includes the number of symbols, the starting symbol offset, the number of subcarriers, and the starting subcarrier offset; Alternatively, the pattern indication information of the RE used for uplink interference measurement includes the number of symbols, the starting symbol offset, the comb tooth size, and the starting subcarrier offset.

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

26. A communication device, characterized in that: include: One or more processors and one or more memories; wherein the one or more memories store one or more programs, and when the programs are executed by the one or more processors, the device executes the method as described in any one of claims 1-12.

27. A chip system, characterized in that: The chip system includes at least one chip and a memory, and the at least one chip is used to read and execute a program stored in the memory to implement the method as described in any one of claims 1-12.

28. A readable storage medium, characterized in that: The readable storage medium includes a program, and when the program is executed on a device, the device is caused to execute the method according to any one of claims 1 to 12.

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