An indication method, device, and storage medium

Abstract

The present application proposes an indication method, apparatus, and storage medium. The method includes: transmitting a sounding reference signal resource SRS to indicate SRI information, where the SRI information is used to indicate K SRS resource groups, and the spatial parameter information of the set of uplink information elements corresponds to the spatial parameter information of the SRS resource groups, and K is an integer greater than or equal to 1. Among them, the uplink information element includes one of the following: a physical uplink shared channel PUSCH, and one transmission in multiple repeated transmissions of the PUSCH.

Description

Technical Field

[0001] The present application relates to communications, and in particular, to an indication method, apparatus, and storage medium. Background Art

[0002] For beam indication of a single uplink transmission (for example, Physical Uplink Shared Channel (PUSCH) transmission based on a Code Book (CB) or Non-Code Book (NCB)), the base station can indicate the transmission beam of a PUSCH by sending a Sounding Reference Signal (SRS) resource indicator (SRI); for beam indication of multiple uplink transmissions, the base station can indicate the transmission beam of the first PUSCH by sending an SRI, and the subsequent PUSCH transmissions will reuse the transmission beam of the first PUSCH. However, in the Ultra-Reliable Low-Latency Communication (URLLC) scenario, improving the diversity gain of the beam is an effective method to obtain highly reliable and low-latency data transmission. Therefore, how to improve the diversity gain of the beam is an urgent problem to be solved at present. Summary of the Invention

[0003] Embodiments of the present application provide an indication method, apparatus, and storage medium, which improve the diversity gain of the beam.

[0004] In a first aspect, an embodiment of the present application provides an indication method, including:

[0005] Transmitting Sounding Reference Signal Resource Indicator (SRI) information, where the SRI information is used to indicate K SRS resource groups, and the spatial parameter information of the uplink information element set corresponds to the spatial parameter information of the SRS resource group, K is an integer greater than or equal to 1, and the uplink information element includes one of the following: Physical Uplink Shared Channel (PUSCH), one transmission in multiple repeated transmissions of PUSCH.

[0006] In a second aspect, an embodiment of the present application provides an indication method, including:

[0007] Configuring a set of spatial parameter information, where the set of spatial parameter information is used to automatically update the spatial parameters of physical channels or physical signal transmissions at different transmission times; where the set of spatial parameter information includes a set of Transmission Configuration Indicator (TCI) states or a set of spatial relationship information.

[0008] In a third aspect, an embodiment of the present application provides an indication method, including:

[0009] Receive the SRI information transmitted by the base station, where the SRI information is used to indicate K SRS resource groups, and the spatial parameter information of the set of uplink information elements corresponds to the spatial parameter information of the SRS resource groups. K is an integer greater than or equal to 1, and the uplink information element includes one of the following: PUSCH, one transmission in multiple repeated transmissions of PUSCH;

[0010] Perform PUSCH transmission according to the SRS resource groups indicated by the SRI information.

[0011] In a fourth aspect, an embodiment of the present application provides an indication method, including:

[0012] Receive the set of spatial parameter information configured by the base station, where the set of spatial parameter information includes a set of transmission configuration indication (TCI) states or a set of spatial relationship information;

[0013] Automatically update the spatial parameters of physical channels or physical signal transmissions at different transmission times according to the set of spatial parameter information.

[0014] In a fifth aspect, an embodiment of the present application provides an indication device, including:

[0015] A first transmission module configured to transmit sounding reference signal (SRS) resource indication (SRI) information, where the SRI information is used to indicate K SRS resource groups, and the spatial parameter information of the set of uplink information elements corresponds to the spatial parameter information of the SRS resource groups. K is an integer greater than or equal to 1, and the uplink information element includes one of the following: physical uplink shared channel (PUSCH), one transmission in multiple repeated transmissions of PUSCH.

[0016] In a sixth aspect, an embodiment of the present application provides an indication device, including:

[0017] A first configuration module configured to configure a set of spatial parameter information, where the set of spatial parameter information is used to automatically update the spatial parameters of physical channels or physical signal transmissions at different transmission times; where the set of spatial parameter information includes a set of transmission configuration indication (TCI) states or a set of spatial relationship information.

[0018] In a seventh aspect, an embodiment of the present application provides an indication device, including:

[0019] A first receiving module configured to receive the SRI information transmitted by the base station, where the SRI information is used to indicate K SRS resource groups, and the spatial parameter information of the set of uplink information elements corresponds to the spatial parameter information of the SRS resource groups. K is an integer greater than or equal to 1, and the uplink information element includes one of the following: PUSCH, one transmission in multiple repeated transmissions of PUSCH;

[0020] The second transmission module is configured to perform PUSCH transmission according to the SRS resource set indicated by the SRI information.

[0021] In an eighth aspect, an indication device provided by an embodiment of the present application includes:

[0022] A second receiving module, configured to receive a set of spatial parameter information configured by a base station, where the set of spatial parameter information includes a set of transmission configuration indication (TCI) states or a set of spatial relationship information;

[0023] An update module, configured to automatically update spatial parameters for physical channel or physical signal transmission at different transmission times according to the set of spatial parameter information.

[0024] In a ninth aspect, an embodiment of the present application provides a storage medium storing a computer program, and when the computer program is executed by a processor, the method described in any of the above embodiments is implemented. Description of the Drawings

[0025] Figure 1 is a flowchart of an indication method provided by an embodiment of the present application;

[0026] Figure 2 is a schematic diagram of UE beam switching in a high-speed rail scenario provided by an embodiment of the present application;

[0027] Figure 3 is a flowchart of another indication method provided by an embodiment of the present application;

[0028] Figure 4 is a flowchart of yet another indication method provided by an embodiment of the present application;

[0029] Figure 5 is a flowchart of still another indication method provided by an embodiment of the present application;

[0030] Figure 6 is a structural block diagram of an indication device provided by an embodiment of the present application;

[0031] Figure 7 is a structural block diagram of another indication device provided by an embodiment of the present application;

[0032] Figure 8 is a structural block diagram of yet another indication device provided by an embodiment of the present application;

[0033] Figure 9 is a structural block diagram of still another indication device provided by an embodiment of the present application;

[0034] Figure 10 is a structural schematic diagram of a device provided by an embodiment of the present application. Detailed Embodiments

[0035] The embodiments of the present application will be described below with reference to the accompanying drawings.

[0036] Figure 1 It is a flowchart of an indication method provided by an embodiment of the present application. This embodiment is applicable to the case of performing multiple PUSCH transmissions using multiple sounding reference signal (SRS) resources, and this embodiment can be executed by a base station.

[0037] As Figure 1 shown, the method provided by this embodiment includes S120.

[0038] S120: Transmit SRS resource indication (SRI) information of the sounding reference signal SRS.

[0039] Among them, the SRI information is used to indicate K SRS resource groups, the spatial parameter information of the set of uplink information elements corresponds to the spatial parameter information of the SRS resource groups, K is an integer greater than or equal to 1, and the uplink information element includes one of the following: PUSCH, one transmission in multiple repeated transmissions of PUSCH. In the embodiment, the base station indicates K SRS resource groups to the UE for M PUSCH transmissions. Among them, 1 < K ≤ N SRS , N SRS is the total number of SRS resources configured for the UE. Among them, the PUSCH transmission includes non-codebook-based uplink transmission and codebook-based uplink transmission. In one embodiment, the maximum total number of SRS resources used for non-codebook-based uplink transmission is 4, that is, in the case of non-codebook-based uplink transmission, the maximum value of N SRS is 4; the maximum total number of SRS resources used for codebook-based uplink transmission is 2, that is, in the case of codebook-based uplink transmission, the maximum value of N SRS is 2. For multiple PUSCH transmissions, the base station can indicate multiple SRS resources for multiple PUSCH transmissions by sending SRI information, that is, use SRI information to indicate multiple transmission beams for multiple PUSCH transmissions, thereby providing beam diversity gain.

[0040] In one embodiment, the SRI information is used to indicate K SRS resource groups, that is, the SRI information is used to indicate the SRS resource index corresponding to the SRS resources included in each SRS resource group. Each SRS resource group can include one or two SRS resources, and each SRS resource is indicated by an SRS resource index. For example, when the maximum value of N SRS is 4, the SRS resource index can be 0 - 3, that is, the SRS resources can be SRS0, SRS1, SRS2, or SRS3; another example is when N SRSThe maximum value is 2, and the SRS resource index can be 0 - 1, that is, the SRS resource packet can be SRS0 or SRS1.

[0041] In one embodiment, the spatial parameter information of the uplink information element set corresponds to the spatial parameter information of the SRS resource group, including: the spatial parameter information of the i-th uplink information element set corresponds to the spatial parameter information of the i-th SRS resource group, i = 1, …, K. In the embodiment, the spatial parameter information of each SRS resource group is the spatial parameter information corresponding to an uplink information element set. Among them, each SRS resource group corresponds to a different uplink information element set, that is, the spatial parameter information of each uplink information element set is indicated by a corresponding SRS resource group. In one embodiment, an SRS resource group may include one SRS resource or two SRS resources, which is related to the maximum number of transmission layers supported by the UE. Exemplarily, assuming that the maximum number of transmission layers supported by the UE is 1, the number of SRS resources corresponding to an SRS resource group is 1; for another example, assuming that the maximum number of transmission layers supported by the UE is 2, the number of SRS resources corresponding to an SRS resource group can be 2.

[0042] In one embodiment, the K uplink information element sets include at least one of the first uplink information element set and the second uplink information element set; the first uplink information element set includes one of the following: PUSCH transmission with a PUSCH transmission indication value less than or equal to a preset threshold, PUSCH transmission with an odd transmission indication value of the PUSCH transmission indication value, and the preset threshold is half of the total number of PUSCH transmission indication values; the second uplink information element set includes one of the following: PUSCH transmission with a PUSCH transmission indication value greater than the preset threshold, PUSCH transmission with an even transmission indication value of the PUSCH transmission indication value. Among them, the transmission indication value includes one of the following: the number of transmissions, the time unit index. In the embodiment, each PUSCH transmission performed by the UE is at a different time. In one embodiment, the PUSCH transmission indication value can be the PUSCH transmission number or the time unit index. Among them, each time unit index corresponds to a time unit. For example, assuming that 8 PUSCH transmissions are performed, and the transmission interval for each time is 1 slot, then the time unit index can be 0 - 7, and the transmission numbers are the 1st - 8th times respectively. Then, at the 2nd PUSCH transmission, the corresponding time unit is the 2nd slot, and so on. At the 8th PSCH transmission, the corresponding time unit is the 8th slot.

[0043] In one embodiment, assuming K = 2, the SRI information is used to indicate the spatial parameter information of two sets of uplink information elements, namely the spatial parameter information of the first set of uplink information elements and the second set of uplink information elements, and the SRI information is used to indicate two SRS resource groups, that is, each SRS resource group corresponds to a set of uplink information elements. In one embodiment, the number of transmissions can be used to illustrate the first set of uplink information elements and the second set of uplink information elements. Assume that the SRI information indicates that two SRS resource groups perform M PUSCH transmissions. Among them, the first set of uplink information elements may include: the first M / 2 PUSCH transmissions among the M transmissions, or the odd-numbered PUSCH transmissions among the M transmissions; the second set of uplink information elements may include: the last M / 2 PUSCH transmissions among the M transmissions, or the even-numbered PUSCH transmissions among the M transmissions. Exemplarily, assuming M is 8, the first set of uplink information elements includes: the first 4 PUSCH transmissions among the 8 transmissions, or the odd-numbered PUSCH transmissions among the 8 transmissions, that is, the first set of uplink information elements includes: the 1st, 2nd, 3rd, and 4th PUSCH transmissions, or the 1st, 3rd, 5th, and 7th PUSCH transmissions; correspondingly, the second set of uplink information elements includes: the 5th, 6th, 7th, and 8th PUSCH transmissions, or the 2nd, 4th, 6th, and 8th PUSCH transmissions.

[0044] In one embodiment, the spatial parameter information includes at least one of the following: transmission beam information, transmission beam group information, precoding matrix information, transport layer information, spatial relationship information, spatial filter information. Among them, the transmission beam information refers to the relevant information of the transmission beam adopted by the set of uplink information elements, that is, a set of uplink information elements uses one transmission beam for PUSCH transmission; the transmission beam group information refers to the relevant information of the transmission beam group adopted by the set of uplink information elements, that is, a set of uplink information elements uses at least two transmission beams for PUSCH transmission; the precoding matrix information refers to the matrix information of the SRS resource with better transmission beams sent by the UE to the base station; the transport layer information refers to the relevant information of each transport layer of the UE. For example, the transport layer information may include: the number of transport layers; the spatial relationship information is used to characterize the relevant information of the transmission beam; the spatial filter information is used to characterize whether the transmission beams of two reference signals are the same, that is, if the spatial filter information of two reference signals is the same, the relevant information of the transmission beam is the same.

[0045] In one embodiment, the SRI information includes one of the following: an SRI index value, joint information of the SRI index value and a Dedicated deModulation Reference Signal (DMRS) index value. In one embodiment, the K SRS resource groups may be indicated to the UE by the SRI index value. In one embodiment, the K SRS resource groups may also be indicated to the UE by the joint information of the SRI index value and the DMRS index value.

[0046] In one embodiment, the SRI information is used to indicate K SRS resource groups and includes one of the following:

[0047] The SRI index value in the SRI bit field of the downlink control information DCI is used to indicate the SRS resource group corresponding to the i-th set of uplink information elements;

[0048] The SRI index value of the i-th SRS resource group in the SRI bit field of the DCI corresponds to the i-th set of uplink information elements, where i = 1, …, K.

[0049] In one embodiment, when the SRI information is used to indicate K SRS resource groups and includes that the SRI index value in the SRI bit field of the DCI is used to indicate the SRS resource group corresponding to the i-th set of uplink information elements, that is, when using the SRI index value to indicate K (1 ≤ k ≤ N SRS ) SRS resource groups, assuming the scenario is non-codebook-based PUSCH transmission, and the maximum number of transmission layers supported by the UE is 1, and K = 2. Where N SRS is the maximum value of the number of SRS resources that the UE can be configured with. In the embodiment, the base station may indicate two SRS resource groups to the UE for M PUSCH transmissions through the SRI information, and each SRS resource corresponds to a different set of uplink information elements. Among them, different sets of uplink information elements correspond to the SRS resources in different SRS resource groups. In the embodiment, the spatial parameter information of the i-th SRS resource group of the SRI information corresponds to the spatial parameter information corresponding to the i-th set of uplink information elements, that is, the transmission beam for transmitting the i-th set of uplink information elements is the transmission beam for transmitting the i-th SRS resource group. Among them, the set of uplink information elements may adopt one of the following methods: the first set of uplink information elements includes the first M / 2 PUSCH transmissions in the M transmissions, or the odd-numbered PUSCH transmissions in the M transmissions; correspondingly, the second set of uplink information elements includes the last M / 2 PUSCH transmissions in the M transmissions, or the even-numbered PUSCH transmissions in the M transmissions.

[0050] Table 1 is a SRI indication comparison table provided by an embodiment of the present application for non-codebook PUSCH transmission. As shown in Table 1, the SRI index values in Table 1 are 0 and 1, and when N SRS is 2, the SRI index values are 0, 1, and 2, and when N SRS is 3, and when the SRI index values are 0, 1, 2, and 3, and when N SRS is 4, these three cases are all SRI indication comparison tables for L max =1 in R15 based on non-codebook. In the embodiment, the SRI field is increased from the original 2 bits to 4 bits, and the newly added SRI index values are used to indicate that different uplink information element sets correspond to different SRS resource groups. Among them, the SRS resource index refers to the serial number of the SRS resource adopted by the UE. The SRS resource index can be 0-3, that is, SRS0, SRS1, SRS2, and SRS3. In the embodiment, the UE can obtain the SRS resources corresponding to different uplink information element sets through different SRI index values. For example, when M = 8, N SRS = 4, when the UE receives the SRI index value of 6, the first uplink information element set corresponds to SRS0, and the second uplink information element set corresponds to SRS3, that is, the first 4 PUSCH transmissions correspond to SRS0, and the last 4 PUSCH transmissions correspond to SRS3; or, the 1st, 3rd, 5th, and 7th PUSCH transmissions correspond to SRS0, and the 2nd, 4th, 6th, and 8th PUSCH transmissions correspond to SRS3.

[0051] Table 1 A SRI indication comparison table for non-codebook PUSCH transmission

[0052]

[0053] As shown in Table 1, when the SRI index value is 6 and N SRS = 4, the transmission beam of the first uplink information element set is the transmission beam for transmitting the first group of SRS resources, that is, the transmission beam of the first uplink information element set is the transmission beam for transmitting SRS0 resources; the transmission beam of the second uplink information element set is the transmission beam for transmitting the second group of SRS resources, that is, the transmission beam of the second uplink information element set is the transmission beam for transmitting SRS3 resources, thereby improving the diversity gain of the beam.

[0054] In one embodiment, the SRI information is used to indicate K SRS resource groups, including: the SRI index value in the SRI bit field in the DCI is used to indicate that the i-th SRS resource group corresponds to the i-th set of uplink information elements. In the embodiment, the SRS resource groups are pre-grouped in the SRI bit field. For example, assume that there are a total of 8 SRS resources, the first 4 SRS resources are in the first group, and the last 4 SRS resources are in the second group. The SRI bit field selects from the two groups of SRS resource groups, and the first group of SRS resource groups corresponds to the first set of uplink information elements, and the second group of SRS resource groups corresponds to the second set of uplink information elements.

[0055] In one embodiment, the SRS resource groups satisfy at least one of the following characteristics: different sets of uplink information elements correspond to different SRS resource groups; there is an association between the SRS resource groups and one of the following information: spatial relationship information grouping, SRS resource sequence number grouping. In the embodiment, the SRS resource groups are associated with the spatial relationship information grouping and / or the SRS resource sequence number grouping. For example, the corresponding spatial relationship information can be obtained through the SRS resource groups, and correspondingly, the corresponding SRS resource groups can be obtained through the spatial relationship information.

[0056] In one embodiment, when the SRI information includes the SRI index value, that is, when the SRI index value is used to indicate K (1≤k≤N SRS ) SRS resource groups, assume that the scenario is non-codebook-based PUSCH transmission, and the maximum number of transmission layers supported by the UE is 1, and K = 2. Table 2 is another SRI indication comparison table provided by the embodiments of the present application for non-codebook-based PUSCH transmission. As shown in Table 2, for the case where the SRI index values in Table 1 are 0 and 1, and N SRS is 2, the SRI index values are 0, 1, and 2, and N SRS is 3, and for the case where the SRI index values are 0, 1, 2, and 3, and N SRS is 4, all three cases are the non-codebook-based L in R15 maxSRI indication comparison table with a value of 1. In the embodiment, the SRI field is increased from the original 2 bits to 3 bits, and the newly added number of rows (i.e., the SRI index value) is used to indicate that the SRS resources used by different uplink information element sets come from different SRS resource groups. Among them, the grouping method of the SRS resource groups can adopt one of the following methods: grouping according to spatial relation information, or grouping according to the SRS resource serial number (i.e., distinguishing between the first half of the SRS resources and the second half of the SRS resources). Exemplarily, taking grouping according to spatial relation information as an example, the SRI index value indication for non-codebook PUSCH transmission in this embodiment is described. Suppose the UE is configured with 4 SRS resources and is simultaneously configured with 2 spatial relation information, and each SRS resource is configured with one spatial relation information. Among them, the SRS resources with the same spatial relation information are divided into one group. Another example is taking the distinction between the first half of the SRS resources and the second half of the SRS resources as an example, the SRI index value indication for non-codebook PUSCH transmission in this embodiment is described. Suppose the UE is configured with 4 SRS resources, namely SRS0 resource, SRS1 resource, SRS2 resource, and SRS3 resource. Then, the SRS0 resource and the SRS1 resource are in one group, and the SRS2 resource and the SRS3 resource are in one group. Among them, the uplink information element set can adopt one of the following methods: the first uplink information element set includes the first M / 2 transmissions among M transmissions, or the odd-numbered PUSCH transmissions among M transmissions; correspondingly, the second uplink information element set includes the last M / 2 transmissions among M transmissions, or the even-numbered PUSCH transmissions among M transmissions.

[0057] Exemplarily, when the grouping method of the SRS resource groups adopts the method of the first half and the second half of the SRS resources, the SRI index value indication method is shown in Table 2. For example, when M = 8, N SRS = 4, and the UE receives the SRI index value of 6, then the first uplink information element set corresponds to SRS1, and the second uplink information element set corresponds to SRS2, that is, the first 4 PUSCH transmissions correspond to SRS1, and the last 4 PUSCH transmissions correspond to SRS2; or, the 1st, 3rd, 5th, and 7th PUSCH transmissions correspond to SRS1, and the 2nd, 4th, 6th, and 8th PUSCH transmissions correspond to SRS2.

[0058] Table 2 Another SRI indication comparison table based on non-codebook PUSCH transmission

[0059]

[0060] As shown in Table 2, when the SRI index value is 6, N SRSWhen n = 4, the transmission beam of the first set of uplink information elements is the transmission beam for transmitting the first set of SRS resources, that is, the transmission beam of the first set of uplink information elements is the transmission beam for transmitting SRS1 resources; the transmission beam of the second set of uplink information elements is the transmission beam for transmitting the second set of SRS resources, that is, the transmission beam of the second set of uplink information elements is the transmission beam for transmitting SRS2 resources. Moreover, the SRS resources (SRS2) used by the second set of uplink information elements and the SRS resources (SRS1) used by the first set of uplink information elements belong to different SRS resource groups, thereby improving the diversity gain of the beam.

[0061] In one embodiment, the SRI information is used to indicate K SRS resource groups, and the spatial parameter information of the set of uplink information elements corresponds to the spatial parameter information of the SRS resource group: the SRI index value is used to indicate the SRS resources corresponding to the first set of uplink information elements, and the SRS resource group corresponding to the second set of uplink information elements is obtained according to one of the following information: the SRS resource with the largest index ID except for the SRS resources corresponding to the first set of uplink information elements indicated by the SRI index value, the SRS resource with the smallest index ID except for the SRS resources corresponding to the first set of uplink information elements indicated by the SRI index value, where the first set of uplink information elements and the second set of uplink information elements belong to K sets of uplink information elements, and K is an integer greater than or equal to 1.

[0062] In one embodiment, when the SRI information includes the SRI index value, that is, when the SRI index value is used to indicate K (1 ≤ k ≤ N SRS ) SRS resource groups, assuming the scenario is non-codebook-based PUSCH transmission, the maximum number of transmission layers supported by the UE is 1, and K = 2. Among them, the SRI index value is used to indicate the SRS resources corresponding to the first set of uplink information elements, and the indication method of the SRI index value includes: the SRI index value is the index ID of the indicated SRS resources. Exemplarily, when the SRI index value is 2, it indicates that the SRS resources corresponding to the first set of uplink information elements are SRS2. In the embodiment, the SRS resources corresponding to the second set of uplink information elements can be obtained in one of the following ways: the SRS resource with the largest index ID except for the SRS resources corresponding to the first set of uplink information elements indicated by the SRI index value, or the SRS resource with the smallest index ID except for the SRS resources corresponding to the first set of uplink information elements indicated by the SRI index value. Among them, the set of uplink information elements can be obtained in one of the following ways: the first set of uplink information elements includes the first M / 2 transmissions in M transmissions, or the odd-numbered PUSCH transmissions in M transmissions; correspondingly, the second set of uplink information elements includes the last M / 2 transmissions in M transmissions, or the even-numbered PUSCH transmissions in M transmissions.

[0063] Table 3 is a comparison table of the largest SRS resource ID corresponding to non-codebook PUSCH transmission provided in the embodiments of the present application. Among them, the SRS resource with the largest index ID except for the SRS resources corresponding to the first set of uplink information elements indicated by the SRI index value can be used to obtain the SRS resources corresponding to the second set of uplink information elements (that is, the latter M / 2 transmissions in the M transmissions, or the even-numbered PUSCH transmissions in the M transmissions), as shown in Table 3. In one embodiment, the SRS resources corresponding to the second set of uplink information elements are obtained by using the SRS resource with the largest index ID except for the SRS resources corresponding to the first set of uplink information elements indicated by the SRI index value, and M = 8, N SRS = 4, SRI = 2 (that is, the SRI index value is 2), then the first set of uplink information elements corresponds to SRS2, and the second set of uplink information elements corresponds to SRS3, that is, the first 4 PUSCH transmissions correspond to the SRS2 resource, and the last 4 PUSCH transmissions correspond to the SRS3 resource; or, the 1st, 3rd, 5th, and 7th PUSCH transmissions correspond to the SRS2 resource, and the 2nd, 4th, 6th, and 8th PUSCH transmissions correspond to the SRS3 resource.

[0064] Table 3 A comparison table of the largest SRS resource ID corresponding to non-codebook PUSCH transmission

[0065]

[0066] As shown in Table 3, when the SRI index value is 2, the SRS resource corresponding to the first set of uplink information elements is SRS2; and, N SRS = 4, that is, the number of SRS resources configured for the UE is 4, which are SRS0 to SRS3 respectively. When the SRS resource corresponding to the first set of uplink information elements is SRS2, the SRS resource corresponding to the second set of uplink information elements is the SRS resource with the largest index ID except for the SRS resource corresponding to the first set of uplink information elements indicated by the SRI index value (that is, SRS2), that is, the SRS resource corresponding to the second set of uplink information elements is SRS3.

[0067] Table 4 is a comparison table of the smallest SRS resource ID corresponding to non-codebook PUSCH transmission provided by the embodiments of the present application. Among them, except for the SRS resources corresponding to the first set of uplink information elements indicated by the SRI index value, the SRS resource with the smallest index ID is used to obtain the second set of uplink information elements (i.e., the latter M / 2 transmissions in M transmissions, or the even-numbered PUSCH transmissions in M transmissions), and the corresponding SRS resources are shown in Table 4. In one embodiment, the SRS resources corresponding to the second set of uplink information elements are in the manner that except for the SRS resources corresponding to the first set of uplink information elements indicated by the SRI index value, the SRS resource with the smallest index ID, and M = 8, N SRS = 4, SRI = 2 (i.e., the SRI index value), then the first set of uplink information elements corresponds to the SRS2 resource, and the second set of uplink information elements corresponds to the SRS0 resource, that is, the first 4 PUSCH transmissions correspond to the SRS2 resource, and the latter 4 PUSCH transmissions correspond to the SRS0 resource; or, the 1st, 3rd, 5th, and 7th PUSCH transmissions correspond to the SRS2 resource, and the 2nd, 4th, 6th, and 8th PUSCH transmissions correspond to the SRS0 resource.

[0068] Table 4 A comparison table of the smallest SRS resource ID corresponding to non-codebook PUSCH transmission

[0069]

[0070] As shown in Table 4, when the SRI index value is 2, the SRS resource corresponding to the first set of uplink information elements is SRS2; and, N SRS = 4, that is, the number of SRS resources configured for the UE is 4, which are SRS0 - SRS3 respectively. When the SRS resource corresponding to the first set of uplink information elements is SRS2, the SRS resource group corresponding to the second set of uplink information elements is the SRS resource with the smallest index ID except for the SRS resource (i.e., SRS2) corresponding to the first set of uplink information elements indicated by the SRI index value, that is, the SRS resource corresponding to the second set of uplink information elements is SRS0.

[0071] In one embodiment, the SRI information is used to indicate K SRS resource groups, and the spatial parameter information of the set of uplink information elements corresponds to the spatial parameter information of the SRS resource group: the SRI index value indicates the SRS resource corresponding to the first set of uplink information elements, and the DMRS index value indicates the SRS resource corresponding to the second set of uplink information elements, where the first set of uplink information elements and the second set of uplink information elements belong to K sets of uplink information elements.

[0072] In one embodiment, a DMRS index value is used to indicate an SRS resource corresponding to a second set of uplink information elements, including: using the DMRS index value to indicate an index ID offset of the SRS resource corresponding to the second set of uplink information elements relative to the SRS resource indicated by an SRI index value; or, the DMRS index value is the index ID of the SRS resource corresponding to the second set of uplink information elements.

[0073] In one embodiment, when the SRI information includes joint information of an SRI index value and a DMRS index value, that is, the joint information of the SRI index value and the DMRS index value is used to indicate K (1 ≤ k ≤ N SRS ) SRS resource groups, and when the DMRS index value is used to indicate an index ID offset of the SRS resource corresponding to the second set of uplink information elements relative to the SRS resource indicated by the SRI index value, assuming the scenario is non-codebook-based PUSCH transmission and the maximum number of transmission layers supported by the UE is 1, K = 2. In the embodiment, the SRI index value is used to indicate the SRS resource corresponding to the first set of uplink information elements, and the DMRS index value is used to indicate the SRS resource corresponding to the second set of uplink information elements. Among them, the indication method of the SRI index value is to indicate according to the existing indication method in version 15 (Release 15, R15), that is, the SRI index value is the index ID of the SRS resource corresponding to the first set of uplink information elements. The indication method using the DMRS index value is to use the DMRS index value to indicate the index ID offset of the SRS resource relative to the SRS resource indicated by the SRI index value. For example, if the SRI index value indicates that the SRS resource corresponding to the first set of uplink information elements is SRS0 and the DMRS index value in the downlink control information (DCI) is 2, that is, the index ID offset of this SRS resource relative to SRS0 is 2, then the SRS resource corresponding to the second set of uplink information elements is SRS2. Among them, the set of uplink information elements can be one of the following methods: the first set of uplink information elements includes the first M / 2 transmissions in M transmissions, or the odd-numbered PUSCH transmissions in M transmissions; correspondingly, the second set of uplink information elements includes the last M / 2 transmissions in M transmissions, or the even-numbered PUSCH transmissions in M transmissions.

[0074] Exemplarily, Table 5 is a comparison table of the joint information of an SRI index value and a DMRS index value for indicating SRS resources provided by an embodiment of the present application. Assume M = 8, N SRS= 4, SRI = 2 (i.e., the SRI index value is 2), when the DMRS index value is 2, the first set of uplink information elements corresponds to the SRS2 resource, and the second set of uplink information elements corresponds to the SRS0 resource. That is, the first 4 PUSCH transmissions correspond to the SRS2 resource, and the last 4 PUSCH transmissions correspond to the SRS0 resource; or, the 1st, 3rd, 5th, and 7th PUSCH transmissions correspond to the SRS2 resource, and the 2nd, 4th, 6th, and 8th PUSCH transmissions correspond to the SRS0 resource.

[0075] Table 5 A comparison table of the combined information of the SRI index value and the DMRS index value indicating the SRS resource

[0076]

[0077]

[0078] As shown in Table 5, the DMRS index value indicates the index ID offset of the SRS resource relative to the SRS resource indicated by the SRI index value. For example, when N SRS = 4, SRI = 3, DMRS = 3, the SRS resource corresponding to the first set of uplink information elements is SRS3, and the SRS resource corresponding to the second set of uplink information elements is SRS2.

[0079] In an embodiment, when the SRI information includes the combined information of the SRI index value and the DMRS index value, that is, the combined information of the SRI index value and the DMRS index value is used to indicate K (1 ≤ k ≤ N SRSThere are [[ID=]], and the DMRS index value is used to indicate the SRS resource corresponding to the second set of uplink information elements, including: the DMRS index value is the index ID of the SRS resource corresponding to the second set of uplink information elements. In the embodiment, assume that the scenario is M PUSCH transmissions based on non-codebook, and the maximum number of transmission layers supported by the UE is 1, K = 2. In the embodiment, the SRI index value is used to indicate the SRS resource corresponding to the first set of uplink information elements, and the DMRS index value is used to indicate the SRS resource corresponding to the second set of uplink information elements. Among them, the method of using the SRI index value for indication is to indicate according to the existing indication method in R15, that is, the SRI index value is the index ID of the SRS resource corresponding to the first set of uplink information elements; the method of using the DMRS index value for indication is that the DMRS index value is the index ID of the SRS resource corresponding to the second set of uplink information elements. For example, if the SRI index value indicates that the SRS resource corresponding to the first set of uplink information elements is SRS0 and the DMRS index value in the DCI is 2, then the SRS resource corresponding to the second set of uplink information elements is SRS2. Among them, the set of uplink information elements can be one of the following methods: the first set of uplink information elements includes the first M / 2 transmissions among the M transmissions, or the odd-numbered PUSCH transmissions among the M transmissions; correspondingly, the second set of uplink information elements includes the last M / 2 transmissions among the M transmissions, or the even-numbered PUSCH transmissions among the M transmissions, that is, the first 4 PUSCH transmissions correspond to the SRS0 resource, and the last 4 PUSCH transmissions correspond to the SRS2 resource; or, the 1st, 3rd, 5th, and 7th PUSCH transmissions correspond to the SRS0 resource, and the 2nd, 4th, 6th, and 8th PUSCH transmissions correspond to the SRS2 resource.

[0080] In one embodiment, when the SRI information includes the combined information of the SRI index value and the DMRS index value, that is, the combined information of the SRI index value and the DMRS index value is used to indicate K (1 ≤ k ≤ N SRS ) SRS resource groups, and the DMRS index value is used to indicate the SRS resource corresponding to the second set of uplink information elements, including: using the DMRS index value to indicate the index ID offset of the SRS resource corresponding to the second set of uplink information elements relative to the SRS resource indicated by the SRI index value. Assume that the scenario is PUSCH transmission based on non-codebook, and the maximum number of transmission layers supported by the UE is 2, K = 2, that is, the SRS resource corresponding to each set of uplink information elements is 2. In the embodiment, the SRI index value is used to indicate the two SRS resources corresponding to the first set of uplink information elements, and the DMRS index value is used to indicate the two SRS resources corresponding to the second set of uplink information elements. Among them, the method of indicating by the SRI index value is to follow the existing L in R15 maxIndication is made in the indication mode of = 2, that is, the SRI index value is the index ID of the SRS resource corresponding to the first set of uplink information elements; the indication mode of the DMRS index value is that the DMRS index value is the index ID offset of this SRS resource relative to each SRS resource indicated by the SRI index value. For example, the SRI index value indicates that the SRS resources corresponding to the first set of uplink information elements are SRS0 and SRS3, and the DMRS index value in the DCI is 2, that is, the index ID offset of this SRS resource relative to SRS0 and SRS3 is 2, then the SRS resources corresponding to the second set of uplink information elements are SRS2 and SRS1. Among them, the set of uplink information elements can adopt one of the following methods: the first set of uplink information elements includes the first M / 2 transmissions in M transmissions, or the odd-numbered PUSCH transmissions in M transmissions; correspondingly, the second set of uplink information elements includes the last M / 2 transmissions in M transmissions, or the even-numbered PUSCH transmissions in M transmissions, that is, the first 4 PUSCH transmissions correspond to SRS0 and SRS3, and the last 4 PUSCH transmissions correspond to SRS2 and SRS1; or, the 1st, 3rd, 5th, and 7th PUSCH transmissions correspond to SRS0 and SRS3, and the 2nd, 4th, 6th, and 8th PUSCH transmissions correspond to SRS2 and SRS1.

[0081] In an embodiment, when the SRI information includes the combined information of the SRI index value and the DMRS index value, that is, the combined information of the SRI index value and the DMRS index value is used to indicate K (1 ≤ k ≤ N SRS ) SRS resource groups, and the SRS resources corresponding to the second set of uplink information elements are indicated by the DMRS index value, including: the DMRS index value is the index ID of the SRS resources corresponding to the second set of uplink information elements. Assume that the scenario is non-codebook-based PUSCH transmission and the maximum number of transmission layers supported by the UE is 2, K = 2. The base station indicates K (1 ≤ K ≤ N SRS ) SRS resources for M PUSCH transmissions to the UE, each PUSCH transmission corresponds to 2 SRS resources, and different sets of uplink information elements correspond to different SRS resource groups. Among them, N SRSThe maximum number of SRS resources that a UE can be configured with. The uplink information element set can be one of the following ways: The first uplink information element set includes the first M / 2 PUSCH transmissions in M transmissions, or the odd-numbered PUSCH transmissions in M transmissions; correspondingly, the second uplink information element set includes the last M / 2 PUSCH transmissions in M transmissions, or the even-numbered PUSCH transmissions in M transmissions. In an embodiment, the i-th SRS resource group of the SRI information is used to indicate the spatial parameter information of the i-th uplink information element set, that is, the transmission beam for transmitting the i-th uplink information element set is the transmission beam for transmitting the i-th SRS resource group.

[0082] Table 6 is a correspondence table of SRI indication for non-codebook-based PUSCH transmission provided in an embodiment of the present application. As shown in Table 6, a reserved row is added to the SRI indication table with L max =2 in R15 for non-codebook-based. The newly added SRI index value indicates that different uplink information element sets correspond to different SRS resources, and the UE obtains the SRS resources corresponding to different uplink information element sets through different SRI index values. For example, when M = 8 and N SRS =4, if the UE receives an SRI index value of 10, the first uplink information element set corresponds to SRS0 and SRS1, and the second uplink information element set corresponds to SRS2 and SRS3, that is, the first 4 PUSCH transmissions correspond to SRS0 and SRS1, and the last 4 PUSCH transmissions correspond to SRS2 and SRS3; or, the 1st, 3rd, 5th, and 7th PUSCH transmissions correspond to SRS0 and SRS1, and the 2nd, 4th, 6th, and 8th PUSCH transmissions correspond to SRS2 and SRS3.

[0083] Table 6 Correspondence table of SRI indication for non-codebook-based PUSCH transmission

[0084]

[0085]

[0086] As shown in Table 6, when N SRS =4 and the SRI index value is 10, the transmission beam of the first uplink information element set is the transmission beam for transmitting the first group of SRS resources, that is, the transmission beam of the first uplink information element set is the transmission beam for transmitting SRS0 and SRS1; the transmission beam of the second uplink information element set is the transmission beam for transmitting the second group of SRS resources, that is, the transmission beam of the second uplink information element set is the transmission beam for transmitting SRS2 and SRS3, thereby improving the diversity gain of the beam.

[0087] In one embodiment, the SRI information is used to indicate K SRS resource groups, including: an extended SRI bit field, where the i-th SRI index value in the SRI bit field is used to indicate the SRS resource group corresponding to the i-th set of uplink information elements. Assuming a scenario of codebook-based PUSCH transmission, the base station indicates to the UE, via the SRI index value, M transmissions of PUSCH for K (1 ≤ K ≤ 2) SRS resource groups, with K = 2. Among them, the SRS resources correspond to different sets of uplink information elements, and the set of uplink information elements can be one of the following ways: The first set of uplink information elements includes the first M / 2 PUSCH transmissions among the M transmissions, or the odd-numbered PUSCH transmissions among the M transmissions; correspondingly, the second set of uplink information elements includes the last M / 2 PUSCH transmissions among the M transmissions, or the even-numbered PUSCH transmissions among the M transmissions.

[0088] Table 7 is a comparison table of SRI indications for a codebook-based PUSCH transmission provided in an embodiment of the present application. As shown in Table 7, the SRI field is increased from 1 bit to 2 bits, and the newly added number of rows (i.e., the SRI index value) indicates that different sets of uplink information elements correspond to different SRS resource groups. The UE obtains the SRS resource groups corresponding to different sets of uplink information elements through different SRI index values. For example, when M = 8 and N SRS = 2, when the UE receives the SRI index value of 2, the first set of uplink information elements corresponds to the SRS0 resource, and the second set of uplink information elements corresponds to the SRS1 resource, that is, the first 4 PUSCH transmissions correspond to the SRS0 resource, and the last 4 PUSCH transmissions correspond to the SRS1 resource; or, the 1st, 3rd, 5th, and 7th PUSCH transmissions correspond to the SRS0 resource, and the 2nd, 4th, 6th, and 8th PUSCH transmissions correspond to the SRS1 resource.

[0089] Table 7 Comparison Table of SRI Indications for a Codebook-Based PUSCH Transmission

[0090]

[0091]

[0092] As shown in Table 7, for codebook-based PUSCH transmission, N SRS The maximum value is 2. When the SRI index value is 2 and N SRSWhen = 2, the transmission beam of the first set of uplink information elements is the transmission beam for transmitting the SRS resources included in the first SRS resource group, that is, the transmission beam of the first set of uplink information elements is the transmission beam for transmitting the SRS0 resource; the transmission beam of the second set of uplink information elements is the transmission beam for transmitting the SRS resources included in the second SRS group, that is, the transmission beam of the second set of uplink information elements is the transmission beam for transmitting the SRS1, thereby improving the diversity gain of the beam.

[0093] In one embodiment, the SRI information includes the joint information of the SRI index value and the DMRS index value, that is, the SRS resources corresponding to the set of uplink information elements are indicated by the joint information of the SRI index value and the DMRS index value. Assume that the scenario is codebook-based PUSCH transmission and it is a single-user single-input single-output (SU-MIMO) case. The UE is configured with at most 2 SRS resources, namely SRS0 and SRS1, and the corresponding manner between the SRS resources and the PUSCH transmission is jointly indicated by the SRI index value and the DMRS index value. Exemplarily, when the DMRS index value is 0, it means that M PUSCH transmissions all correspond to the same SRS resource, that is, the SRS resource corresponding to each PUSCH transmission is indicated by the SRI index value; when the DMRS index value is 1, it means that the first set of uplink information elements corresponds to SRS0 and the second set of uplink information elements corresponds to SRS1; when the DMRS index value is 2, it means that the first set of uplink information elements corresponds to SRS1 and the second set of uplink information elements corresponds to SRS0. Among them, the set of uplink information elements can adopt one of the following methods: the first set of uplink information elements includes the first M / 2 PUSCH transmissions among M transmissions, or the odd-numbered PUSCH transmissions among M transmissions; correspondingly, the second set of uplink information elements includes the last M / 2 PUSCH transmissions among M transmissions, or the even-numbered PUSCH transmissions among M transmissions.

[0094] In a moving high-speed railway network, the optimal receiving beam and the optimal transmitting beam between the base station and the UE often switch and update. The railway is fixed, that is, the traveling trajectory of the UE is fixed. Assume that the UE moves forward at a constant speed following the high-speed train. At different times, the UE is at different positions, and this position is known or determined to the base station. Therefore, the UE can be instructed by the base station with different optimal receiving beams for the downlink channels or downlink signals, or the optimal transmitting beams for the uplink channels or signals, that is, update the TCI state of the downlink channels or downlink signals, or update the spatial relationship information of the uplink channels or signals. Figure 2 It is a schematic diagram of UE beam switching in a high-speed railway scenario provided by an embodiment of the present application. As Figure 2As shown, optionally, the transmission beams and reception beams corresponding to UE0 and UE1 in the high-speed train at time t0 can be beam 0, beam 1, or beam 2; the transmission beams and reception beams corresponding to UE0 and UE1 in the high-speed train at time t1 can be beam 4, beam 5, or beam 6. In the embodiment, it can be implemented by at least one of the following methods:

[0095] Figure 3 It is a flowchart of another indication method provided by an embodiment of the present application. This embodiment can be executed by a base station.

[0096] As Figure 3 shown, the method in this embodiment includes S220.

[0097] S220. Configure a set of spatial parameter information.

[0098] Among them, the set of spatial parameter information is used to automatically update the spatial parameters of physical channels or physical signals transmitted at different transmission times; among them, the set of spatial parameter information includes a set of transmission configuration indicator (TCI) states or a set of spatial relationship information.

[0099] In the embodiment, the base station configures a set of TCI states or a set of spatial relationships, and sends the set of TCI states and the set of spatial relationships to the UE, so that the UE automatically updates the spatial parameters of physical channels or physical signals transmitted at different transmission times according to the set of TCI states or the set of spatial relationships.

[0100] In one embodiment, the spatial parameters of the physical channel and / or the physical signal are determined according to at least one of the following information: the time unit index where the physical channel and / or the physical signal is located, the mapping relationship between the spatial parameters and the time unit, where the spatial parameters include one of the following: quasi co-located reference signal information, spatial relationship information, spatial filter information. Among them, the quasi co-located reference signal information can be configured in the TCI state.

[0101] In one embodiment, the set of spatial parameter information is used to automatically update the spatial parameters of physical channels or physical signals transmitted at different transmission times, including:

[0102] The set of spatial parameter information is used to trigger the UE to sequentially update the spatial parameters of the physical channel or the physical signal transmission according to the mapping relationship between the starting position, the spatial parameters, and the time. In the embodiment, after the UE receives the set of spatial parameter information, it determines the (n + 1)-th spatial parameter in the corresponding set of spatial parameter information according to the pre-configured starting position n, and sequentially updates the spatial parameters of the physical channel or the physical signal transmission according to the mapping relationship between the spatial parameters and the time unit.

[0103] In one embodiment, the physical channel includes at least one of the following: Physical Downlink Shared Channel (PDSCH), PUSCH, Physical Downlink Control Channel (PDCCH), Physical Uplink Control Channel (PUCCH); and / or, the physical signal includes at least one of the following: SRS, Channel state information reference signal (CSI-RS).

[0104] In one embodiment, a time unit is configured by a first high-layer signaling, and the time unit is used to determine the update interval of the spatial parameters in the spatial parameter information set; wherein, the time unit includes: a fixed time unit, or a set of time units. In an embodiment, the first high-layer signaling may be Radio Resource Control (RRC) signaling or Medium Access Control (MAC)-Control Element (CE) signaling. In an embodiment, the UE is configured with a set of TCI states or a set of spatial relation information through RRC signaling, and the time unit is configured through MAC-CE signaling.

[0105] In one embodiment, a starting position is configured by a second high-layer signaling, and the starting position is used to determine the initial update position of the spatial parameters in the spatial parameter information set. In an embodiment, the second high-layer signaling may be an activation instruction, and the activation instruction may be MAC-CE signaling. A starting position is configured through MAC-CE signaling to activate the UE or indicate a starting position.

[0106] In one embodiment, the base station configures a set of TCI states and a time unit through a first high-layer signaling, and configures a starting position through a second high-layer signaling. Wherein, the time unit is the update time interval, the set of time units is the set of update time intervals, the first high-layer instruction is an RRC signaling or a MAC-CE signaling, and the second high-layer instruction is a MAC-CE signaling. In the embodiment, a set of TCI states is configured for the UE through a first high-layer signaling (RRC signaling), and the set of TCI states includes N (N≥1) TCI states; wherein, the TCI state refers to the TCI state configured by the base station for the UE to receive a target downlink signal or a target downlink channel, and the TCI state is at least associated with the following configuration information: a first source reference signal; wherein, the first source reference signal refers to a source reference signal that provides a first Quasi co-location (QCL) type (for example, QCL-TypeD) for the target downlink signal or the target downlink channel. A fixed update time interval T, or a set of update time intervals T*, is configured for the UE through a first high-layer signaling (for example, MAC-CE signaling); the set of update time intervals T* includes N-1 different update time intervals; wherein, the update time interval refers to the time interval between the UE updating the current TCI state and the next update of the TCI state; through a second high-layer signaling (for example, MAC-CE signaling), the UE is activated or instructed with a starting position n (0≤n≤N-1); wherein, the starting position n corresponds to the (n+1)-th TCI state in the set of TCI states, and is used to instruct the UE to sequentially update the TCI states of the downlink signal or the downlink channel (including but not limited to PDCCH, PDSCH, CSI-RS) starting from the (n+1)-th TCI state in the set of TCI states, wherein, the time interval between each update of the TCI state is obtained according to the configured fixed update time interval T, or according to the update time interval values and order in the configured set of update time intervals T*.

[0107] Exemplarily, the base station configures a set of TCI states A = [TCI0, TCI1, TCI2] including 3 TCI states through RRC signaling, and then configures a set of update intervals T* = [1, 2] in units of time slots through MAC-CE signaling; through a MAC-CE signaling, a starting position for the UE to be activated is n = 0; after the UE receives the above information, according to the order of the TCI states in the TC state set A, the currently received TCI state is updated to the first TCI state in the set of TCI states, that is, TCI0. After 1 time slot, the UE automatically updates the TCI state of the currently received PDSCH to TCI1, and after another 2 time slots, the UE automatically updates the TCI state of the currently received PDSCH to TCI2.

[0108] In one embodiment, the base station configures a set of spatial relation information and a time unit through a first high-layer signaling, and configures a starting position through a second high-layer signaling. Wherein, the time unit is the update time interval, the set of time units is the set of update time intervals, the first high-layer signaling is the RRC signaling or the MAC-CE signaling, and the second high-layer signaling is the MAC-CE signaling. In the embodiment, through the first high-layer signaling (for example, the RRC signaling), the UE is configured with a set of spatial relation information; the set of spatial relation information includes N (N≥1) pieces of spatial relation information, and the spatial relation information included in each set of spatial relation information is not completely the same; wherein, the spatial relation information includes an uplink reference signal or a downlink reference signal, which is used to indicate that the uplink channel or the uplink signal respectively has the same spatial filter as the uplink reference signal; or, the uplink channel or the uplink signal respectively has the same spatial filter as the downlink reference signal. For example, the DM-RS of the PUSCH is configured with a piece of spatial relation information, and the spatial relation information includes an SRS, which is used to indicate that the PUSCH DM-RS and the SRS resource have the same spatial filter. Through the second high-layer signaling (for example, the MAC-CE signaling), a fixed update time interval T or a set of update time intervals T* is configured for the UE; the set of update time intervals T* includes N-1 different update time intervals; wherein, the update time interval refers to the time interval between the UE updating the current spatial relation information and the next update of the spatial relation information; through a second high-layer signaling (for example, the MAC-CE signaling), the UE is activated or indicated with a starting position n (0≤n≤N-1); wherein, the starting position n corresponds to the (n+1)-th piece of spatial relation information in the set of spatial relation information, and is used to indicate that the UE starts from the (n+1)-th piece of spatial relation information in the set of spatial relation information and sequentially updates the spatial relation information of the uplink signal or the uplink channel (including but not limited to PUCCH, PUSCH, SRS), and the time interval between each update of the spatial relation information is obtained according to the configured fixed update time interval T, or is obtained according to the update time interval values and orders in the configured set of update time intervals T*.

[0109] Exemplarily, the base station configures a set A of spatial relation information containing 3 pieces of spatial relation information, A = [SpecialrelationInfo0, SpecialrelationInfo1, SpecialrelationInfo2], through RRC signaling, and then configures an update interval set T* = [1, 2], with the unit being time slots, through MAC-CE signaling; through a MAC-CE signaling, a starting position where the UE is activated is n = 0; after the UE receives the above information, in the order of the spatial relation information in the set A of spatial relation information, the spatial relation information of the currently transmitted PUCCH is updated to the first piece of spatial relation information in the set of spatial relation information, that is, SpecialrelationInfo0. After 1 time slot, the UE automatically updates the spatial relation information of the currently transmitted PUCCH to SpecialrelationInfo1, and after another 2 time slots, the UE automatically updates the spatial relation information of the currently transmitted PUCCH to SpecialrelationInfo2.

[0110] In one embodiment, a time unit and at least two sets of spatial parameter information are configured through a third high-layer signaling. The time unit includes: a fixed time unit, or a set of time units. Among them, the third high-layer signaling can be RRC signaling or MAC-CE signaling. In the embodiment, at least two sets of spatial parameter information are configured through RRC signaling, and the time unit is configured through MAC-CE signaling.

[0111] In one embodiment, a set of spatial parameters is selected from at least two sets of spatial parameters through a fourth high-layer signaling, and the spatial parameter corresponding to each transmission time is determined according to the time unit and the starting position in the selected set of spatial parameters. Among them, the fourth high-layer signaling can be MAC-CE signaling. In the embodiment, a time unit and a starting position are configured through MAC-CE signaling, and a set of spatial parameter information is selected from at least two sets of spatial parameters through MAC-CE signaling, and the spatial parameter corresponding to each transmission time is determined according to the time unit and the starting position in the selected set of spatial parameter information. Among them, the set of spatial parameters includes a set of TCI states or a set of spatial relation information. That is, when the set of spatial parameters is a set of TCI states, the spatial parameter is a TCI state; when the set of spatial parameters is a set of spatial relation information, the spatial parameter is spatial relation information.

[0112] In one embodiment, a time unit and at least two sets of TCI states are configured by a third high-layer signaling, and one set of TCI states is selected from the at least two sets of TCI states by a fourth high-layer signaling, and the TCI state corresponding to each transmission time is determined according to the time unit and the starting position in the selected set of TCI states. In the embodiment, the time unit is the update time interval, the set of time units is the set of update time intervals. Through a third high-layer signaling (such as, RRC signaling), the UE is configured with M sets of TCI states, where each set of TCI states includes N (N≥1) TCI states, and the TCI states in each set of TCI states are not exactly the same; where the TCI state refers to the TCI state configured by the base station for the UE to receive the target downlink signal or the target downlink channel, and the TCI state is at least associated with the following configuration information: a first source reference signal; where the first source reference signal refers to the source reference signal that provides the first QCL type (such as QCL-Type D) for the target downlink signal or the target downlink channel. Through a third high-layer signaling (such as, MAC-CE signaling), the UE is configured with a fixed update time interval T, or a set of update time intervals T*; the set of update time intervals T* includes N-1 different update time intervals; where the update time interval refers to the time interval between the UE updating the current TCI state and the next update of the TCI state; through a fourth high-layer signaling (such as, MAC-CE signaling), the UE is activated or instructed to select 1 set of TCI states (0≤n≤N-1) from the M sets of TCI states; the UE starts to update the TCI states of the downlink signal or the downlink channel (including but not limited to PDCCH, PDSCH, CSI-RS) in sequence from the first TCI state in the indicated set of TCI states, where the time interval between each update of the TCI state is the configured fixed update time interval T, or is obtained according to the update time interval values and order in the configured set of update time intervals T*.

[0113] Exemplarily, the base station configures two sets of TCI states A1 and A2 through RRC signaling, and each set of TCI states contains 3 TCI states, that is, A1 = [TCI0, TCI1, TCI2], A2 = [TCI1, TCI2, TCI3]; then configures a fixed update interval T = 2, in units of time slots, through MAC-CE signaling; the base station selects the set of TCI states A1 through MAC-CE signaling; after the UE receives the above information, according to the order of the TCI states in A1, the UE updates the TCI state of the currently received PDSCH to TCI0, after 2 time slots, the UE automatically updates the TCI state of the currently received PDSCH to TCI1, and after another 2 time slots, the UE automatically updates the TCI state of the currently received PDSCH to TCI2.

[0114] In an embodiment, a time unit and at least two sets of spatial relation information are configured through a third high-layer signaling, and one set of spatial relation information is selected from the at least two sets of spatial relation information through a fourth high-layer signaling, and the spatial relation information corresponding to each transmission time is determined according to the time unit and the starting position in the selected set of spatial relation information. In the embodiment, the time unit is the update time interval, and the set of time units is the set of update time intervals. Through a third high-layer signaling (for example, RRC signaling), the UE is configured with M sets of spatial relation information; each set of spatial relation information includes N (N≥1) pieces of spatial relation information; wherein, the spatial relation information includes an uplink reference signal or a downlink reference signal, which is used to indicate that the uplink channel or uplink signal has the same spatial filter as the uplink reference signal, or indicates that the uplink channel or uplink signal has the same spatial filter as the downlink reference signal. For example, the DM-RS of PUSCH is configured with a piece of spatial relation information, and the spatial relation information includes an SRS, which is used to indicate that the DM-RS of PUSCH has the same spatial filter as the SRS. Through a third high-layer signaling (for example, MAC-CE signaling), a fixed update time interval T or a set of update time intervals T* is configured for the UE; the set of update time intervals T* includes N-1 different update time intervals; wherein, the update time interval refers to the time interval between the UE updating the current spatial relation information and the next update of the spatial relation information; the UE is activated or instructed to use 1 set of spatial relation information out of the M sets of spatial relation information (0≤n≤N-1); the UE starts to update the spatial relation information of the downlink signal or channel (including but not limited to PUCCH, PUSCH, SRS) in sequence from the first piece of spatial relation information in the specified set of spatial relation information indicated, and the time interval between each update of the spatial relation information is obtained according to the configured fixed update time interval T, or obtained according to the update time interval value and sequence in the configured set of update time intervals T*.

[0115] Exemplarily, the base station configures two sets of spatial relation information A1 and A2 through RRC signaling, where A1 = [SpecialrelationInfo0, SpecialrelationInfo1, SpecialrelationInfo2], A2 = [SpecialrelationInfo1, SpecialrelationInfo2, SpecialrelationInfo3], and then configures an update interval set T* = [1, 2] in units of time slots through MAC-CE signaling; through a MAC-CE signaling, the set of spatial relation information activated for the UE is A2; after the UE receives the above information, in the order of the spatial relation information in A2, the spatial relation information of the currently transmitted PUCCH is updated to the first spatial relation information in the set of spatial relation information, that is, SpecialrelationInfo1. After 1 time slot, the UE automatically updates the spatial relation information of the currently transmitted PUCCH to SpecialrelationInfo2, and after another 2 time slots, the UE automatically updates the spatial relation information of the currently transmitted PUCCH to SpecialrelationInfo3.

[0116] In one embodiment, when the downlink channel and the uplink channel satisfy channel reciprocity, the method further includes: configuring spatial parameters for the PDSCH, where the spatial parameters are at least associated with the following configuration information: a source reference signal, and the source reference signal is a reference signal of the first QCL type corresponding to the target downlink signal or the target downlink channel. The spatial parameter may be a TCI state.

[0117] In one embodiment, the base station configures a TCI state for the PDSCH. The TCI state refers to the TCI state configured by the base station for the UE to receive the target downlink signal or the target downlink channel. The TCI state is at least associated with the following configuration information: a source reference signal; where the source reference signal refers to a source reference signal that provides the first QCL type (such as QCL-Type D) for the target downlink signal or the target downlink channel, indicating that the PDSCH and the source reference signal satisfy the quasi-co-location relationship with respect to QCL-Type D. When the downlink channel and the uplink channel satisfy channel reciprocity, the UE can determine the reference signal in the spatial relation information of the uplink signal or the uplink channel according to the source reference signal, that is, the two reference signals have the same spatial filter.

[0118] Figure 4 It is a flowchart of another indication method provided by the embodiments of the present application, and this embodiment can be executed by the UE.

[0119] As Figure 4 shown, the method in this embodiment includes S320.

[0120] S320. Receive the SRI information transmitted by the base station.

[0121] Among them, the SRI information is used to indicate K SRS resource groups, and the spatial parameter information of the uplink information element set corresponds to the spatial parameter information of the SRS resource group. K is an integer greater than or equal to 1. The uplink information element includes one of the following: PUSCH, or one transmission in multiple repeated transmissions of PUSCH.

[0122] S340. Perform PUSCH transmission according to the SRS resource group indicated by the SRI information.

[0123] In the embodiment, the base station configures the SRI information for the UE and transmits the SRI information to the UE. After the UE receives the SRI information, it can perform PUSCH transmission according to the SRS resources included in the SRS resource group indicated by the SRI information.

[0124] Figure 5 It is a flowchart of another indication method provided by the embodiments of the present application, and this embodiment can be executed by the UE.

[0125] As Figure 5 shown, the method in this embodiment includes S420 - S440.

[0126] S420. Receive the set of spatial parameter information configured by the base station.

[0127] Among them, the set of spatial parameter information includes a set of TCI states or a set of spatial relationship information.

[0128] S440. Automatically update the spatial parameters of physical channels or physical signal transmissions at different transmission times according to the set of spatial parameter information.

[0129] In the embodiment, the base station configures the set of spatial parameter information for the UE so that the UE can automatically update the spatial parameters of physical channels or physical signal transmissions at different transmission times. Among them, the physical channels include at least one of the following: PDSCH, PUSCH, PDCCH, PUCCH; and / or, the physical signals include at least one of the following: SRS, CSI - RS. The set of spatial parameter information includes a set of TCI states or a set of spatial relationship information. In one embodiment, when the set of spatial parameter information includes a set of TCI states, the UE automatically updates the TCI states of physical channels or physical signal transmissions at different transmission times; in one embodiment, when the set of spatial parameter information includes a set of spatial relationship information, the UE automatically updates the spatial relationship information of physical channels or physical signal transmissions at different transmission times.

[0130] In one embodiment, when the downlink channel and the uplink channel satisfy channel reciprocity, the method further includes:

[0131] Receiving spatial parameters configured by a base station, where the spatial parameters are at least associated with the following configuration information: a source reference signal, where the source reference signal is a reference signal of a first QCL type corresponding to a target downlink signal or a target downlink channel;

[0132] Determining a first reference signal according to the source reference signal, where the spatial parameter information of the uplink channel or the uplink signal is the same as that of the first reference signal.

[0133] In an embodiment, when the downlink channel and the uplink channel satisfy signal reciprocity, the base station configures spatial parameters (such as TCI state) for the PDSCH, and the spatial parameters are at least associated with the source reference signal, so that the UE determines the first reference signal according to the source reference signal. Among them, the spatial parameter information of the uplink channel or the uplink signal is the same as that of the first reference signal, that is, the spatial filter is the same. Among them, the spatial parameter information at least includes one of the following: transmission beam information, transmission beam group information, precoding matrix information, transport layer information, spatial relationship information, spatial filter information. In an embodiment, at least one spatial parameter information of the uplink channel or the uplink signal is the same as that of the first reference signal. For example, the spatial parameter information of the uplink channel or the uplink signal is the same as the transmission beam information, transmission beam group information, precoding matrix information, transport layer information, spatial relationship information, spatial filter information of the first reference signal, one or more of which are the same.

[0134] Figure 6 It is a structural block diagram of an indication device provided by an embodiment of the present application. As Figure 6 shown, the indication device provided in this embodiment includes: a first transmission module 520.

[0135] Among them, the first transmission module 520 is configured to transmit sounding reference signal SRS resource indication SRI information, and the SRI information is used to indicate K SRS resource groups, and the spatial parameter information of the uplink information element set corresponds to the spatial parameter information of the SRS resource group. K is an integer greater than or equal to 1, and the uplink information element includes one of the following: PUSCH, one transmission in multiple repeated transmissions of PUSCH.

[0136] The indication device provided in this embodiment is configured to implement Figure 1 the indication method of the embodiment shown. The implementation principle and technical effects of the indication device provided in this embodiment are similar and will not be elaborated here.

[0137] In one embodiment, the spatial parameter information of the uplink information element set corresponds to the spatial parameter information of the SRS resource group, including: the spatial parameter information of the i-th uplink information element set corresponds to the spatial parameter information of the i-th SRS resource group, where i = 1, …, K.

[0138] In one embodiment, the SRI information includes one of the following: an SRI index value, and joint information of the SRI index value and a dedicated demodulation reference signal DMRS index value.

[0139] In one embodiment, the SRI information is used to indicate K SRS resource groups, including one of the following:

[0140] The SRI index value in the SRI bit field in the downlink control information DCI is used to indicate the SRS resource group corresponding to the i-th uplink information element set;

[0141] The SRI index value in the SRI bit field in the DCI is used to indicate that the i-th SRS resource group corresponds to the i-th uplink information element set, where i = 1, …, K.

[0142] In one embodiment, the SRS resource group satisfies at least one of the following characteristics:

[0143] Different uplink information element sets correspond to different SRS resource groups;

[0144] The SRS resource group is associated with one of the following information: a spatial relationship information group, an SRS resource sequence number group.

[0145] In one embodiment, the SRI information is used to indicate K SRS resource groups, and the spatial parameter information of the uplink information element set corresponds to the spatial parameter information of the SRS resource group, including at least one of the following: the SRI index value is used to indicate the SRS resource group corresponding to the first uplink information element set, and the SRS resource group corresponding to the second uplink information element set is obtained according to one of the following information: the SRS resource with the largest index ID except for the SRS resource corresponding to the first uplink information element set indicated by the SRI index value, the SRS resource with the smallest index ID except for the SRS resource corresponding to the first uplink information element set indicated by the SRI index value, where the first uplink information element set and the second uplink information element set belong to the K uplink information element sets, and K is an integer greater than or equal to 1.

[0146] In one embodiment, the SRI information is used to indicate K SRS resource groups, and the spatial parameter information of the set of uplink information elements corresponds to the spatial parameter information of the SRS resource groups, including at least one of the following: the SRI index value indicates the SRS resource corresponding to the first set of uplink information elements, and the DMRS index value indicates the SRS resource corresponding to the second set of uplink information elements, where the first set of uplink information elements and the second set of uplink information elements belong to the K sets of uplink information elements.

[0147] In one embodiment, using the DMRS index value to indicate the SRS resource corresponding to the second set of uplink information elements includes:

[0148] Using the DMRS index value to indicate the index ID offset of the SRS resource corresponding to the second set of uplink information elements relative to the SRS resource indicated by the SRI index value;

[0149] Alternatively, the DMRS index value is the index ID of the SRS resource corresponding to the second set of uplink information elements.

[0150] In one embodiment, the spatial parameter information includes at least one of the following: transmission beam information, transmission beam group information, precoding matrix information, transport layer information, spatial relationship information, spatial filter information.

[0151] In one embodiment, the K sets of uplink information elements include at least one of the first set of uplink information elements and the second set of uplink information elements;

[0152] The first set of uplink information elements includes one of the following: PUSCH transmission with a PUSCH transmission indication value less than or equal to a preset threshold; PUSCH transmission with a PUSCH transmission indication value being an odd transmission indication value, and the preset threshold is half of the total number of PUSCH transmission indication values;

[0153] The second set of uplink information elements includes one of the following: PUSCH transmission with a PUSCH transmission indication value greater than the preset threshold; PUSCH transmission with a PUSCH transmission indication value being an even transmission indication value

[0154] Wherein, the transmission indication value includes one of the following: number of transmissions, time unit index.

[0155] Figure 7 It is the structural block diagram of another indication device provided by the embodiments of the present application, and this embodiment can be executed by the UE. As Figure 7 shown, the indication device provided by this embodiment includes: a first configuration module 620.

[0156] Among them, the first configuration module 620 is configured to configure a set of spatial parameter information, and the set of spatial parameter information is used to automatically update the spatial parameters for the physical channels or physical signals transmitted at different transmission times; among them, the set of spatial parameter information includes a set of transmission configuration indication (TCI) states or a set of spatial relationship information.

[0157] The indication device provided in this embodiment is configured to implement Figure 3 the indication method of the embodiment shown. The implementation principle and technical effects of the indication device provided in this embodiment are similar and will not be elaborated here.

[0158] In one embodiment, the spatial parameters of the physical channel and / or physical signal are determined according to at least one of the following information: the time unit index where the physical channel and / or physical signal is located, the mapping relationship between the spatial parameters and the time unit, where the spatial parameters include one of the following: quasi co-located reference signal information, spatial relationship information, spatial filter information.

[0159] In one embodiment, the set of spatial parameter information is used to automatically update the spatial parameters for the physical channels or physical signals transmitted at different transmission times, including: the set of spatial parameter information is used to trigger the UE to sequentially update the spatial parameters for the physical channels or physical signals transmitted according to the mapping relationship between the starting position, the spatial parameters, and the time unit.

[0160] In one embodiment, the physical channel includes at least one of the following: physical downlink shared channel PDSCH, PUSCH, physical downlink control channel PDCCH, physical uplink control channel PUCCH; and / or, the physical signal includes at least one of the following: SRS, channel state information reference signal CSI-RS.

[0161] In one embodiment, the time unit is configured by the first high-layer signaling, and the time unit is used to determine the update interval of the spatial parameters in the set of spatial parameter information; among them, the time unit includes: a fixed time unit, or a set of time units.

[0162] In one embodiment, a starting position is configured by the second high-layer signaling, and the starting position is used to determine the initial position for updating the spatial parameters in the set of spatial parameter information.

[0163] In one embodiment, the time unit and at least two sets of spatial parameter information are configured by the third high-layer signaling, and the time unit includes: a fixed time unit, or a set of time units.

[0164] In one embodiment, one set of spatial parameter sets is selected from at least two sets of spatial parameter sets by the fourth high-layer signaling, and the spatial parameters corresponding to each transmission time are determined according to the time unit and the starting position in the selected set of spatial parameter sets.

[0165] In one embodiment, when the downlink channel and the uplink channel satisfy channel reciprocity, the indication device further includes:

[0166] A second configuration module, configured to configure space parameters for the PDSCH. The space parameters are at least associated with the following configuration information: a source reference signal, where the source reference signal is a reference signal of the first quasi co-location (QCL) type corresponding to the target downlink signal or the target downlink channel.

[0167] Figure 8 It is a structural block diagram of another indication device provided by an embodiment of the present application. As Figure 8 shown, the indication device provided in this embodiment includes: a first receiving module 720 and a second transmitting module 740.

[0168] The first receiving module 720 is configured to receive SRI information transmitted by the base station. The SRI information is used to indicate K SRS resource groups, and the space parameter information of the uplink information element set corresponds to the space parameter information of the SRS resource groups. K is an integer greater than or equal to 1. The uplink information element includes one of the following: PUSCH, one transmission in multiple repeated transmissions of PUSCH;

[0169] The second transmitting module 740 is configured to perform PUSCH transmission according to the SRS resource groups indicated by the SRI information.

[0170] The indication device provided in this embodiment is configured to implement Figure 4 the indication method of the embodiment shown. The implementation principle and technical effects of the indication device provided in this embodiment are similar and will not be elaborated here.

[0171] Figure 9 It is a structural block diagram of yet another indication device provided by an embodiment of the present application. As Figure 9 shown, the indication device provided in this embodiment includes: a second receiving module 820 and an updating module 840.

[0172] Among them, the second receiving module 820 is configured to receive a set of space parameter information configured by the base station. The set of space parameter information includes a set of transmission configuration indication (TCI) states or a set of spatial relationship information;

[0173] The updating module 840 is configured to automatically update the space parameters for the physical channel or physical signal transmission at different transmission times according to the set of space parameter information.

[0174] The indication device provided in this embodiment is configured to implement Figure 5 the indication method of the embodiment shown. The implementation principle and technical effects of the indication device provided in this embodiment are similar and will not be elaborated here.

[0175] Figure 10This is a schematic structural diagram of a device provided by an embodiment of the present application. As Figure 10 shown, the device provided by the present application includes: a processor 910 and a memory 920. The number of processors 910 in this device may be one or more, Figure 10 and one processor 910 is taken as an example here. The number of memories 920 in this device may be one or more, Figure 10 and one memory 920 is taken as an example here. The processor 910 and the memory 920 of this device may be connected through a bus or other means, Figure 10 and taking connection through a bus as an example here. In this embodiment, this device is a base station.

[0176] The memory 920, as a computer-readable storage medium, can be set to store software programs, computer-executable programs, and modules, such as the program instructions / modules corresponding to the device in any embodiment of the present application (for example, the transmission module in the indicating device). The memory 920 may include a program storage area and a data storage area. Among them, the program storage area may store an operating system and application programs required for at least one function; the data storage area may store data created according to the use of the device, etc. In addition, the memory 920 may include high-speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, or other non-volatile solid-state storage devices. In some instances, the memory 920 may further include a memory remotely set relative to the processor 910, and these remote memories may be connected to the device through a network. Examples of the above network include but are not limited to the Internet, an enterprise intranet, a local area network, a mobile communication network, and combinations thereof.

[0177] The above-provided device can be set to execute the indicating method applied to the base station provided in any of the above embodiments, and has corresponding functions and effects.

[0178] When the device is a UE, the program stored in the corresponding memory 920 may be the program instructions / modules corresponding to the indicating method applied to the UE provided by the embodiment of the present application. The processor 910 runs the software programs, instructions, and modules stored in the memory 920, thereby executing one or more functional applications and data processing of the computer device, that is, implementing the indicating method applied to the UE in the above method embodiments. It can be understood that when the above device is a UE, it can execute the indicating method applied to the UE provided in any embodiment of the present application and has corresponding functions and effects.

[0179] The embodiments of the present application further provide a storage medium containing computer-executable instructions, which are used to execute an indication method when executed by a computer processor. The method is applied to the base station side and includes: transmitting a sounding reference signal SRS resource indication SRI message, where the SRI message is used to indicate K SRS resource groups, and the spatial parameter information of the uplink information element set corresponds to the spatial parameter information of the SRS resource groups. K is an integer greater than or equal to 1, and the uplink information element includes one of the following: a physical uplink shared channel PUSCH, or one transmission in multiple repeated transmissions of the PUSCH.

[0180] The embodiments of the present application further provide a storage medium containing computer-executable instructions, which are used to execute an indication method when executed by a computer processor. The method is applied to the base station side and includes: configuring a set of spatial parameter information, where the set of spatial parameter information is used to automatically update the spatial parameters of physical channels or physical signal transmissions at different transmission times; wherein, the set of spatial parameter information includes a transmission configuration indication TCI state set or a spatial relationship information set.

[0181] The embodiments of the present application further provide a storage medium containing computer-executable instructions, which are used to execute an indication method when executed by a computer processor. The method is applied to the UE side and includes: receiving the SRI message transmitted by the base station, where the SRI message is used to indicate K SRS resource groups, and the spatial parameter information of the uplink information element set corresponds to the spatial parameter information of the SRS resource groups. K is an integer greater than or equal to 1, and the uplink information element includes one of the following: a physical uplink shared channel PUSCH, or one transmission in multiple repeated transmissions of the PUSCH; performing PUSCH transmission according to the SRS resource groups indicated by the SRI message.

[0182] The embodiments of the present application further provide a storage medium containing computer-executable instructions, which are used to execute an indication method when executed by a computer processor. The method is applied to the UE side and includes: receiving the set of spatial parameter information configured by the base station, where the set of spatial parameter information includes a transmission configuration indication TCI state set or a spatial relationship information set; automatically updating the spatial parameters of physical channels or physical signal transmissions at different transmission times according to the set of spatial parameter information.

[0183] Those skilled in the art should understand that the term user equipment covers any suitable type of wireless user equipment, such as a mobile phone, a portable data processing device, a portable network browser, or a vehicle-mounted mobile station.

[0184] In general, various embodiments of the present application can be implemented in hardware or special-purpose circuits, software, logic, or any combination thereof. For example, some aspects can be implemented in hardware, while other aspects can be implemented in firmware or software that can be executed by a controller, a microprocessor, or other computing devices, although the present application is not limited thereto.

[0185] Embodiments of the present application can be implemented by a data processor of a mobile device executing computer program instructions, for example, in a processor entity, or by hardware, or by a combination of software and hardware. The computer program instructions can be assembly instructions, instruction set architecture (ISA) instructions, machine instructions, machine-related instructions, microcode, firmware instructions, state-setting data, or source code or object code written in any combination of one or more programming languages.

[0186] Any block diagram of a logical process in the accompanying drawings of the present application can represent program steps, or can represent interconnected logic circuits, modules, and functions, or can represent a combination of program steps and logic circuits, modules, and functions. The computer program can be stored in a memory. The memory can have any type suitable for the local technical environment and can be implemented using any suitable data storage technology, such as, but not limited to, read-only memory (ROM), random access memory (RAM), optical memory devices and systems (digital video disc (DVD) or compact disk (CD)), etc. The computer-readable medium can include non-transitory storage media. The data processor can be any type suitable for the local technical environment, such as, but not limited to, a general-purpose computer, a special-purpose computer, a microprocessor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field-programmable gate array (FGPA), and a processor based on a multi-core processor architecture.

Claims

1. An indication method implemented by a base station, characterized in that, Including: Transmitting sounding reference signal (SRS) resource indication (SRI) information, where the SRI information is used to indicate K SRS resource groups, and the spatial parameter information of K sets of uplink information elements corresponds to the spatial parameter information of the K SRS resource groups, and K is an integer greater than or equal to 1; the uplink information element includes one of the following: physical uplink shared channel (PUSCH), one transmission among multiple repeated transmissions of PUSCH. The K sets of uplink information elements include at least one of a first set of uplink information elements and a second set of uplink information elements. The first set of uplink information elements includes one of the following: PUSCH transmissions with a PUSCH transmission indication value less than or equal to a preset threshold; PUSCH transmissions with an odd transmission indication value, where the preset threshold is half of the total number of PUSCH transmission indication values. The second set of uplink information elements includes one of the following: PUSCH transmissions with a PUSCH transmission indication value greater than the preset threshold; PUSCH transmissions with an even transmission indication value.

2. The method according to claim 1, characterized in that The spatial parameter information of the K sets of uplink information elements corresponds to the spatial parameter information of the K SRS resource groups, including: the spatial parameter information of the i-th set of uplink information elements corresponds to the spatial parameter information of the i-th SRS resource group, i = 1, …, K.

3. The method according to claim 1, characterized in that, The SRI information includes one of the following: SRI index value, joint information of the SRI index value and the dedicated demodulation reference signal (DMRS) index value.

4. The method according to claim 1, wherein The SRI information is used to indicate K SRS resource groups, including one of the following: The SRI index value in the SRI bit field of the downlink control information (DCI) is used to indicate the SRS resource group corresponding to the i-th set of uplink information elements. The SRI index value in the SRI bit field of the DCI is used to indicate that the i-th SRS resource group corresponds to the i-th set of uplink information elements, i = 1, …, K.

5. The method according to claim 4, characterized in that The SRS resource groups satisfy at least one of the following characteristics: Different sets of uplink information elements correspond to different SRS resource groups. The SRS resource groups are associated with one of the following: spatial relationship information grouping, SRS resource sequence number grouping.

6. The method according to claim 1, characterized in that, The SRI information is used to indicate K SRS resource groups, and the spatial parameter information of the set of uplink information elements corresponds to the spatial parameter information of the SRS resource groups, including at least one of the following: The SRI index value is used to indicate the SRS resources corresponding to the first set of uplink information elements. The SRS resource group corresponding to the second set of uplink information elements is obtained according to one of the following: the SRS resource with the largest index ID except for the SRS resources corresponding to the first set of uplink information elements indicated by the SRI index value, the SRS resource with the smallest index ID except for the SRS resources corresponding to the first set of uplink information elements indicated by the SRI index value. Wherein, the first set of uplink information elements and the second set of uplink information elements belong to the K sets of uplink information elements, and K is an integer greater than or equal to 1.

7. The method according to claim 1, wherein The SRI information is used to indicate K SRS resource groups, and the spatial parameter information of the set of uplink information elements corresponds to the spatial parameter information of the SRS resource group, including at least one of the following: The SRI index value indicates the SRS resource corresponding to the first set of uplink information elements; The DMRS index value indicates the SRS resource corresponding to the second set of uplink information elements; Wherein, the first set of uplink information elements and the second set of uplink information elements belong to K sets of uplink information elements.

8. The method according to claim 7, wherein The DMRS index value indicates the SRS resource corresponding to the second set of uplink information elements, including: Using the DMRS index value to indicate the index ID offset of the SRS resource corresponding to the second set of uplink information elements relative to the SRS resource indicated by the SRI index value; Or, the DMRS index value is the index ID of the SRS resource corresponding to the second set of uplink information elements.

9. The method according to any one of claims 1 to 8, characterized in that The spatial parameter information includes at least one of the following: transmission beam information, transmission beam group information, precoding matrix information, transport layer information, spatial relationship information, spatial filter information.

10. The method according to any one of claims 1 to 8, characterized in that The transmission indication value includes one of the following: number of transmissions, time unit index.

11. An indication method implemented by a base station, characterized in that, Including: Configuring a set of spatial parameter information, which is used for the UE to automatically update the spatial parameters of physical channels or physical signals transmitted at different transmission times; wherein, the set of spatial parameter information includes a set of transmission configuration indication (TCI) states or a set of spatial relationship information; Sending the set of TCI states or the set of spatial relationship information to the UE; Determining the spatial parameters of the physical channel and / or the physical signal according to at least one of the following information: the time unit index where the physical channel and / or the physical signal is located; or, the mapping relationship between the spatial parameters and the time unit, where the spatial parameters include one of the following: quasi co-located reference signal information, spatial relationship information, spatial filter information.

12. The method according to claim 11, wherein The set of spatial parameter information is used for the UE to automatically update the spatial parameters of physical channels or physical signals transmitted at different transmission times, including: The set of spatial parameter information is used to trigger the UE to sequentially update the spatial parameters of physical channels or physical signals transmitted according to the mapping relationship between the starting position, the spatial parameters and the time unit.

13. The method according to claim 11, wherein Configuring a time unit through a first high-layer signaling, and the time unit is used to determine the update interval of the spatial parameters in the set of spatial parameter information; wherein, the time unit includes: a fixed time unit, or a set of time units.

14. The method according to claim 11, wherein Configuring a starting position through a second high-layer signaling, and the starting position is used to determine the initial update position of the spatial parameters in the set of spatial parameter information.

15. The method according to claim 11, characterized in that, Configuring a time unit and at least two sets of spatial parameter information through a third high-layer signaling, and the time unit includes: a fixed time unit, or a set of time units.

16. The method according to claim 15, characterized in that, Selecting one set of spatial parameter sets from the at least two sets of spatial parameter sets through a fourth high-layer signaling, and determining the spatial parameters corresponding to each transmission time in the selected set of spatial parameter sets according to the time unit and the starting position.

17. The method according to claim 11, wherein When the downlink channel and the uplink channel satisfy channel reciprocity, the method further includes: Configuring spatial parameters for the PDSCH, where the spatial parameters are at least associated with the following configuration information: a source reference signal, and the source reference signal is a reference signal of the first quasi-co-location (QCL) type corresponding to a target downlink signal or a target downlink channel.

18. A method of indication implemented by a UE, characterized in that, including: Receiving SRI information transmitted by a base station, where the SRI information is used to indicate K SRS resource groups, and the spatial parameter information of K uplink information element sets corresponds to the spatial parameter information of the K SRS resource groups. K is an integer greater than or equal to 1. The uplink information element includes one of the following: PUSCH, or one transmission in multiple repeated transmissions of PUSCH; Performing PUSCH transmission according to the SRS resource group indicated by the SRI information; The K uplink information element sets include at least one of a first uplink information element set and a second uplink information element set; The first uplink information element set includes one of the following: a PUSCH transmission with a PUSCH transmission indication value less than or equal to a preset threshold; a PUSCH transmission with an odd transmission indication value, where the preset threshold is half of the total number of PUSCH transmission indication values; The second uplink information element set includes one of the following: a PUSCH transmission with a PUSCH transmission indication value greater than the preset threshold; a PUSCH transmission with an even transmission indication value.

19. An indication method implemented by a UE, characterized in that, including: Receiving a set of spatial parameter information configured by a base station, where the set of spatial parameter information includes a set of transmission configuration indication (TCI) states or a set of spatial relationship information; Automatically updating the spatial parameters of physical channels or physical signal transmissions at different transmission times according to the set of spatial parameter information; Determining the spatial parameters of a physical channel and / or a physical signal according to at least one of the following information: a time unit index where the physical channel and / or the physical signal is located; or, a mapping relationship between the spatial parameters and the time unit, where the spatial parameters include one of the following: quasi-co-location reference signal information, spatial relationship information, spatial filter information.

20. The method according to claim 19, wherein When the downlink channel and the uplink channel satisfy channel reciprocity, the method further includes: Receiving spatial parameters configured by a base station, where the spatial parameters are at least associated with the following configuration information: a source reference signal, and the source reference signal is a reference signal of the first quasi-co-location (QCL) type corresponding to a target downlink signal or a target downlink channel; Determining a first reference signal according to the source reference signal, and the spatial parameter information of the uplink channel or the uplink signal is the same as that of the first reference signal.

21. An indicating device, characterized in that, including: A first transmission module configured to transmit sounding reference signal (SRS) resource indication (SRI) information, where the SRI information is used to indicate K SRS resource groups, and the spatial parameter information of K uplink information element sets corresponds to the spatial parameter information of the K SRS resource groups. K is an integer greater than or equal to 1. The uplink information element includes one of the following: PUSCH, or one transmission in multiple repeated transmissions of PUSCH; The K sets of uplink information elements include at least one of a first set of uplink information elements and a second set of uplink information elements; The first set of uplink information elements includes one of the following: PUSCH transmission with a PUSCH transmission indication value less than or equal to a preset threshold; PUSCH transmission with an odd transmission indication value for the PUSCH transmission indication value, where the preset threshold is half of the total number of PUSCH transmission indication values; The second set of uplink information elements includes one of the following: PUSCH transmission with a PUSCH transmission indication value greater than the preset threshold; PUSCH transmission with an even transmission indication value for the PUSCH transmission indication value.

22. An indicating device, characterized in that, Comprising: A first configuration module configured to configure a set of spatial parameter information for the UE to automatically update the spatial parameters of physical channels or physical signal transmissions at different transmission times; wherein the set of spatial parameter information includes a set of transmission configuration indication (TCI) states or a set of spatial relationship information; The apparatus is further configured to: Send the set of TCI states or the set of spatial relationship information to the UE; Determine the spatial parameters of the physical channel and / or physical signal according to at least one of the following information: the time unit index where the physical channel and / or physical signal is located; or, the mapping relationship between the spatial parameters and the time unit, where the spatial parameters include one of the following: quasi co-located reference signal information, spatial relationship information, spatial filter information.

23. An indicating device, characterized in that, Comprising: A first receiving module configured to receive SRI information transmitted by the base station, the SRI information being used to indicate K SRS resource groups, and the spatial parameter information of the K sets of uplink information elements corresponding to the spatial parameter information of the K SRS resource groups, where K is an integer greater than or equal to 1, and the uplink information element includes one of the following: PUSCH, one transmission in multiple repeated transmissions of PUSCH; A second transmission module configured to perform PUSCH transmission according to the SRS resource group indicated by the SRI information; The K sets of uplink information elements include at least one of a first set of uplink information elements and a second set of uplink information elements; The first set of uplink information elements includes one of the following: PUSCH transmission with a PUSCH transmission indication value less than or equal to a preset threshold; PUSCH transmission with an odd transmission indication value for the PUSCH transmission indication value, where the preset threshold is half of the total number of PUSCH transmission indication values; The second set of uplink information elements includes one of the following: PUSCH transmission with a PUSCH transmission indication value greater than the preset threshold; PUSCH transmission with an even transmission indication value for the PUSCH transmission indication value.

24. An indicating device, characterized in that, Comprising: A second receiving module configured to receive a set of spatial parameter information configured by the base station, the set of spatial parameter information including a set of transmission configuration indication (TCI) states or a set of spatial relationship information; An update module configured to automatically update the spatial parameters of physical channels or physical signal transmissions at different transmission times according to the set of spatial parameter information; Determine spatial parameters of a physical channel and / or a physical signal according to at least one of the following information: a time unit index where the physical channel and / or the physical signal is located; or, a mapping relationship between the spatial parameters and time units, where the spatial parameters include one of the following: quasi co-located reference signal information, spatial relationship information, spatial filter information.

25. A storage medium, characterized in that, The storage medium stores a computer program, and when the computer program is executed by a processor, it implements the indication method according to any one of claims 1-20.

Images