Apparatus and method for wireless communication system, and storage medium

Abstract

In a new radio access technology - multiple input, multiple output (NR MIMO), a sounding reference signal (SRS) mapping structure is provided to realize two functions: an uplink beam management function and a channel state information (CSI) acquisition function. An apparatus in a wireless communication system includes a processing circuit configured to configure a sounding reference signal (SRS) mapping structure for a user equipment (UE) based on at least a number of antenna ports of the UE and a number of transmit beams and / or receive beams to be scanned, and to notify the UE of the SRS mapping structure, wherein the SRS mapping structure includes at least SRS resource configuration for simultaneously achieving uplink beam management and channel state information (CSI) acquisition.

Description

[Technical field]

[0001] This application claims priority to a Chinese patent application bearing application number 201710676184.7 and entitled "Apparatus and method in wireless communication system, and computer-readable storage medium", filed with the China Patent Office on August 9, 2017, the entire contents of which are incorporated herein by reference.

[0002] The present disclosure relates generally to the field of wireless communication technology, and more specifically to the design and implementation of a Sounding Reference Signal (SRS) mapping structure in the context of a new radio access technology-Multiple Input Multiple Output (NR MIMO). [Background technology]

[0003] In NR MIMO, the SRS needs to realize two functions: uplink beam management function and channel state information (CSI) acquisition function. Currently, it has been proposed to design an SRS mapping structure with independent functions to realize the above two functions. However, such an independent SRS mapping structure has the disadvantages of large system time delay and low uplink resource utilization, and for application scenarios that are sensitive to system time delay and have scarce uplink resources, the existing SRS mapping structure cannot meet the communication needs. Summary of the Invention

[0004] The following provides a brief overview of the present disclosure to provide a basic understanding of certain aspects of the present disclosure. It should be understood that this overview is not an exhaustive overview of the present disclosure. It is not intended to identify key or critical portions of the present disclosure, nor is it intended to limit the scope of the present disclosure. Its purpose is to provide some concepts of the present disclosure in a simplified form as a prelude to the more detailed description discussed below.

[0005] In view of the above problems, an object of at least one aspect of the present disclosure is to provide an apparatus, a method, and a computer-readable storage medium in a wireless communication system for configuring an SRS mapping structure that can simultaneously realize uplink beam management and CSI acquisition, thereby reducing system time delay and improving uplink resource utilization.

[0006] According to one aspect of the present disclosure, an apparatus in a wireless communication system is provided, the apparatus including a processing circuit, the processing circuit being configured to configure a sounding reference signal (SRS) mapping structure for a user equipment based on at least a number of antenna ports of the user equipment and a number of transmit beams and / or receive beams to be scanned, and notify the user equipment of the SRS mapping structure, wherein the SRS mapping structure includes at least an SRS resource configuration for simultaneously realizing uplink beam management and channel state information (CSI) acquisition.

[0007] According to another aspect of the present disclosure, there is further provided an apparatus in a wireless communication system, the apparatus including a processing circuit, the processing circuit being further configured to control a user equipment to transmit an SRS to a base station on a corresponding time-frequency resource according to a sounding reference signal (SRS) mapping structure notified by the base station, the SRS mapping structure including at least an SRS resource configuration for simultaneously realizing uplink beam management and channel state information (CSI) acquisition.

[0008] According to another aspect of the present disclosure, there is further provided a method in a wireless communication system, the method including: configuring a sounding reference signal (SRS) mapping structure for a user equipment based on at least a number of antenna ports of the user equipment and a number of transmit beams and / or receive beams to be scanned, and notifying the user equipment of the SRS mapping structure, the SRS mapping structure including at least an SRS resource configuration for simultaneously realizing uplink beam management and channel state information (CSI) acquisition.

[0009] According to another aspect of the present disclosure, there is further provided a method in a wireless communication system, the method including controlling a user equipment to transmit an SRS to a base station on a corresponding time-frequency resource according to a sounding reference signal (SRS) mapping structure signaled by the base station, the SRS mapping structure including at least an SRS resource configuration for simultaneously realizing uplink beam management and channel state information (CSI) acquisition.

[0010] According to another aspect of the present disclosure, there is further provided a computer-readable storage medium storing executable instructions which, when executed by a computer, cause the computer to perform the method in the wireless communication system.

[0011] According to another aspect of the present disclosure, there is further provided computer program code and a computer program product for implementing the methods according to the present disclosure as described above.

[0012] According to an embodiment of the present disclosure, by arranging an SRS mapping structure in a user equipment for simultaneously realizing uplink beam management and CSI acquisition, it is possible to reduce system time delay and improve uplink transmission rate and uplink resource utilization rate compared to independent SRS mapping structures that respectively realize uplink beam management and CSI acquisition.

[0013] The following specification provides further aspects of the embodiments of the present disclosure, and in it, preferred embodiments are described in detail to fully disclose the embodiments of the present disclosure, without being limited thereto. [Brief description of the drawings]

[0014] The present disclosure can be better understood by reference to the detailed description set forth below in conjunction with the drawings, in which the same or similar parts are designated by the same or similar reference numerals in all the drawings, and in which, together with the following detailed description, are incorporated into and constitute a part of this specification, and further illustrate, by way of example, preferred embodiments of the present disclosure and serve to explain the principles and advantages of the present disclosure.

[0015] [Figure 1] 1 is a block diagram illustrating an example of a functional configuration of a base station side device in a wireless communication system according to an embodiment of the present disclosure. [Diagram 2] FIG. 2 is a schematic diagram illustrating an example of a configuration of an SRS mapping structure according to an embodiment of the present disclosure. [Diagram 3] 1A-1C are schematic diagrams illustrating examples of SRS mapping structures with different parameter configurations according to embodiments of the present disclosure. [Figure 4] FIG. 2 is a schematic diagram illustrating an example of a frequency hopping scheme according to an embodiment of the present disclosure. [Diagram 5] FIG. 2 is a schematic diagram illustrating an example of an SRS mapping structure including different SRS resource configurations according to an embodiment of the present disclosure. [Figure 6] 1 is a block diagram showing an example of a functional configuration of a user equipment device in a wireless communication system according to an embodiment of the present disclosure. [Figure 7A] 4 is a flowchart illustrating a first example of a signaling interaction process in a wireless communication system according to an embodiment of the present disclosure. [Figure 7B] 11 is a flowchart illustrating a second example of a signaling interaction process in a wireless communication system according to an embodiment of the present disclosure. [Figure 8] 1 is a flowchart illustrating an example of a process of a base station side method in a wireless communication system according to an embodiment of the present disclosure. [Figure 9] 4 is a flowchart illustrating an example process of a user equipment side method in a wireless communication system according to an embodiment of the present disclosure. [Figure 10]FIG. 1 is a block diagram illustrating an exemplary configuration of a personal computer as an information processing device that can be employed in an embodiment of the present disclosure. [Figure 11] 1 is a block diagram showing a first example of an exemplary configuration of an eNB to which the technology of the present disclosure can be applied. [Figure 12] FIG. 2 is a block diagram showing a second example of an exemplary configuration of an eNB to which the technology of the present disclosure can be applied. [Figure 13] FIG. 1 is a block diagram showing an example of an exemplary configuration of a smartphone to which the technology of the present disclosure can be applied. [Figure 14] 1 is a block diagram showing an example of an exemplary configuration of a car navigation device to which the technology of the present disclosure can be applied. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0016] Exemplary embodiments of the present invention will now be described in conjunction with the drawings. For the sake of clarity and brevity, the specification does not describe all features of actual embodiments. However, in developing such actual embodiments, decisions must be made that are specific to the embodiment to achieve the developer's specific goals, such as limitations on systems and services, which may vary from embodiment to embodiment. Furthermore, while the development may be very complex and time-consuming, such development is a routine task for those skilled in the art who benefit from the teachings of the present invention.

[0017] Here, what needs to be further explained is that in order to avoid obscuring the present disclosure with unnecessary content, the drawings only show the device configurations and / or processing steps that are closely related to the solution of the present invention, and omit other content that is not related to the present invention.

[0018] Hereinafter, an embodiment of the present disclosure will be described with reference to Figures 1 to 14. The following description will be given in the following order. 1. Example of base station configuration according to an embodiment of the present disclosure 1-1. Overview of an example of an SRS mapping structure according to an embodiment of the present disclosure 1-2. Parameter configuration and notification of SRS mapping structure according to an embodiment of the present disclosure 1-2-1. Port mapping for SRS resources 1-2-2.Sub-band SRS bandwidth 1-2-3. Sampling factor and comb shift amount 1-2-4. Subband SRS Frequency Hopping Method 1-2-5. Installation of other SRS resources 1-2-6.Notification of SRS mapping structure 2. Example of user device configuration according to an embodiment of the present disclosure 3. Signaling Design and Interaction According to the Embodiments of the Present Disclosure 4. A method in a wireless communication system according to an embodiment of the present disclosure 4-1. Method on the base station side 4-2. Method on the user device side 5. Example computing device for implementing the device and method of the present disclosure 6. Technical Applications of the Disclosure 6-1. Application examples for base stations 6-2. Application examples for user devices

[0019] [1. Example of base station configuration according to the embodiment of the present disclosure] (1-1. Overview of an Example of an SRS Mapping Structure According to an Example of the Present Disclosure) FIG. 1 is a block diagram illustrating an example of a functional configuration of a base station in a wireless communication system according to an embodiment of the present disclosure.

[0020] As shown in FIG. 1, the apparatus 100 according to the embodiment may include a configuration unit 102 and a notification unit 104 .

[0021] The configuration unit 102 can be configured to configure an SRS mapping structure for a user equipment, including SRS resource configuration for simultaneously realizing at least uplink beam management and CSI acquisition, based on at least the number of antenna ports of the user equipment and the number of transmit beams and / or receive beams to be scanned.

[0022] The notifying unit 104 may be configured to notify the user equipment of the configured SRS mapping structure.

[0023] For the beam management function, broadband measurement is not necessary because the spatial parameters of each physical resource block (PRB) in the frequency domain are similar, and therefore, in order to consider the fairness of the measurement, the SRS required for this function is more suitable to be matched to the same subcarrier. Meanwhile, for the CSI acquisition function, it is necessary to cover the entire transmission bandwidth to obtain accurate CSI, and due to the limitations of user transmission power, it is possible to realize broadband measurement by using multiple subband SRS and frequency hopping technology.

[0024] Based on this, preferably, the configuration unit 102 is further configured to configure an SRS mapping structure such that the above-mentioned SRS resource configuration includes K groups of SRS resources, and each group of SRS resources has N ports, where K is a positive integer corresponding to the number of transmitting beams or receiving beams to be scanned, and N is a positive integer corresponding to the number of antenna ports of the user equipment.

[0025] Preferably, each group of SRS resources includes one or more sub-band SRS resources, and each sub-band SRS resource has N ports.

[0026] Corresponding to the downlink beam management process in NR MIMO, the uplink beam management in NR MIMO includes three processes: U1 process, which is a process that supports simultaneous uplink transmit beam scanning and receive beam scanning, U2 process, which is a process that only supports uplink receive beam scanning, and U3 process, which is a process that only supports uplink transmit beam scanning. Below, in conjunction with Figure 2, a detailed description will be given of an example of the configuration of the SRS mapping structure for each process.

[0027] Fig. 2 is a schematic diagram showing an example of an SRS mapping structure according to an embodiment of the present disclosure, in which (a) of Fig. 2 is a schematic diagram showing an example of an SRS mapping structure capable of simultaneously realizing a U1 process and CSI acquisition, (b) of Fig. 2 is a schematic diagram showing an example of an SRS mapping structure capable of simultaneously realizing a U2 process and CSI acquisition, and (c) of Fig. 2 is a schematic diagram showing an example of an SRS mapping structure capable of simultaneously realizing a U3 process and CSI acquisition.

[0028] As a preferred example, the configuration unit 102 may be further configured to, for a U1 process of simultaneously performing transmitting beam scanning and receiving beam scanning, configure an SRS mapping structure so that each SRS resource of each group corresponds to one transmitting beam to be scanned, realize transmitting beam scanning in the time domain and configure an IFDMA model with a sampling coefficient greater than or equal to the number of receiving beams to be scanned, realize receiving beam scanning in the frequency domain, and realize CSI acquisition.

[0029] FIG. 2(a) shows an example of an SRS mapping structure used for U1 process and CSI acquisition. As shown in the figure, the horizontal direction indicates the time domain, and the vertical direction indicates the frequency domain. The SRS mapping structure includes a total of six groups of SRS resources (corresponding to six transmit beams to be scanned), and the resource elements (REs) occupied by the SRS resources of each group are filled with different patterns to distinguish the SRS resources of different groups. The numbers shown in the grid representing one RE indicate port numbers, and the same applies in the following description. Each group of SRS resources corresponds to one transmit beam to be scanned, thereby realizing the scanning of six transmit beams in the time domain. The sampling factor (SF) is 3 (corresponding to (or greater than) the number of receive beams to be scanned), and an IFDMA (Interleaved Frequency Division Multiple Access) model is configured based on the sampling factor, thereby realizing the scanning of three receive beams in the frequency domain. The IFDMA model here refers to allocating the SRS signal to idle REs in the same OFDM symbol at equal intervals in the frequency domain. As shown in Fig. 2, hatched REs indicate that these REs are used in the construction of the IFDMA model. Thus, as shown in the block in Fig. 2(a), each beam scan block can realize the scanning of 6 transmit beams * 3 receive beams.

[0030] Regarding the CSI acquisition function, each group of SRS resources includes four SRS ports (0, 1, 2, 3, respectively corresponding to the antenna ports of the user equipment), and a CSI acquisition module is constructed to realize CSI acquisition, and an example of one CSI acquisition module is shown on the rightmost side of Figure 2. Thus, in the example shown in Figure 2(a), each group of SRS resources includes six CSI acquisition modules, and the six CSI acquisition modules perform frequency hopping according to a predetermined frequency hopping scheme (e.g., perform consecutive resource block (RB) frequency hopping while sequentially shifting to the right in the time domain as shown in the figure) to cover the entire uplink transmission bandwidth, thereby obtaining a relatively accurate CSI acquisition result.

[0031] In order to better illustrate that the CSI acquisition modules acquire CSI in a frequency hopping manner with right cyclic shift, all the CSI acquisition modules belonging to the first group of SRS resources are enclosed in a thick solid line frame in Fig. 2. Since each CSI acquisition module occupies only a part of the bandwidth of one group of SRS resources, such a CSI acquisition module is hereinafter also referred to as a sub-band SRS resource, and the length of each CSI acquisition module is referred to as a sub-band SRS bandwidth. It should be understood that, although not shown in Fig. 2, each sub-band SRS resource in the second to sixth groups of SRS resources is mapped to a time-frequency resource in the same frequency hopping manner.

[0032] As another preferred example, the configuration unit 102 may be further configured to, for a U2 process that only performs receive beam scanning, configure an SRS mapping structure to realize receive beam scanning in the time domain such that the SRS resources of each group correspond to the same transmit beam, and configure an IFDMA model according to a sampling coefficient to realize CSI acquisition.

[0033] FIG. 2(b) shows an exemplary arrangement of an SRS mapping structure used for U2 process and CSI acquisition. In the SRS mapping structure shown in FIG. 2(b), the SRS resources of each group are filled with the same pattern to indicate that the SRS resources of each group correspond to the same transmit beam. That is, by arranging the user equipment to transmit the SRS to the base station with the same transmit beam every time, the scanning of six receive beams in the time domain can be realized. For the CSI acquisition function, since only receive beam scanning needs to be performed in the example shown in FIG. 2(b), the IFDMA model configured with a sampling factor of 3 is only used to realize CSI acquisition, because a relatively dense SRS is required to obtain accurate CSI results.

[0034] As another preferred example, the configuration unit 102 may be further configured to, for a U3 process that only performs transmit beam scanning, configure an SRS mapping structure to realize transmit beam scanning in the time domain, such that the SRS resource of each group corresponds to one transmit beam waiting to be scanned, and configure an IFDMA model according to a sampling coefficient to realize CSI acquisition.

[0035] FIG. 2(c) shows an exemplary arrangement of the SRS mapping structure used for U3 process and CSI acquisition. From the perspective of pattern only, the SRS mapping structure shown in FIG. 2(c) is almost the same as the SRS mapping structure shown in FIG. 2(a) and (b), and the difference is that from the perspective of beam management function, in the SRS mapping structure shown in FIG. 2(c), the SRS resources of each group correspond to different transmit beams waiting to be scanned, and the base station side receives the SRS of different transmit beams from the user equipment at the same receive beam each time, so that the scanning of six transmit beams can be realized in the time domain. For the CSI acquisition function, since only transmit beam scanning needs to be performed in the example shown in FIG. 2(c), the IFDMA model configured with a sampling factor of 3 is only used to realize CSI acquisition (this is because a relatively dense SRS is required to obtain accurate CSI results), and there is no need to simultaneously perform receive beam scanning in the frequency domain as shown in FIG. 2(a).

[0036] In addition, the content of the SRS transmitted by the user equipment each time using the same transmission beam or different transmission beams (i.e., the SRS content corresponding to the SRS resources of each group) may be the same or different, and this disclosure does not limit this.

[0037] According to the SRS mapping structure shown in Figure 2, for the beam management function, structure (a) realizes the scanning process of six transmitting beams on the user equipment side and three receiving beams on the base station side, structure (b) realizes the scanning process of six receiving beams on the base station side, and structure (c) realizes the scanning process of six transmitting beams on the user equipment side; for the CSI acquisition function, structure (a) obtains 18 groups of CSI acquisition results in which six transmitting beams and three receiving beams are combined with each other, structure (b) obtains 6 groups of CSI acquisition results corresponding to the six receiving beams, and structure (c) obtains 6 groups of CSI acquisition results corresponding to the six transmitting beams.

[0038] 1 , the apparatus 100 may further include a determination unit 106 (optionally indicated by a dashed frame). The determination unit 106 may be configured to determine an optimal transmit / receive beam pair from the transmit beams and / or receive beams waiting to be scanned according to a measurement result of the SRS from the user equipment, and determine the measurement result corresponding to the determined optimal transmit / receive beam pair as a CSI acquisition result.

[0039] Then, the determined optimal transmit and receive beam pair and the CSI acquisition result can be notified to the user equipment by the notification unit 104. In this way, the SRS mapping structure shown in Figure 2 can simultaneously realize the beam management function and the CSI acquisition function, reduce the system time delay, and improve the uplink resource utilization efficiency.

[0040] Also, preferably, the apparatus 100 may further include a control unit 108 (optionally indicated by a dashed frame). The control unit 108 may be configured to control the base station to receive the SRS from the user equipment on different receive beams waiting to be scanned for the U1 process or the U2 process, thereby realizing receive beam scanning, and to control the base station to receive the SRS from the user equipment on the same receive beam for the U3 process, thereby realizing transmit beam scanning.

[0041] (1-2. Parameter configuration and notification of SRS mapping structure according to an embodiment of the present disclosure) Here, in FIG. 2, the SRS mapping structure for simultaneously realizing the uplink beam management and CSI acquisition functions for different uplink beam management processes is shown as an example, but this is an example and not a limitation, and a person skilled in the art can appropriately modify the above SRS mapping structure according to the principle of the present disclosure in accordance with the actual situation. For example, the SRS mapping structure actually configured will be slightly different due to factors such as the difference in the number of antenna ports of the user equipment, the difference in port mapping scheme, the difference in sub-band SRS bandwidth, the difference in OFDM symbol position occupied by SRS, the difference in frequency hopping manner, the difference in comb shift amount, and the configuration of other SRS resource configurations except for the above SRS resource configuration for simultaneously realizing uplink beam management and CSI acquisition. In other words, at least these factors shown above can be configured in the SRS mapping structure. The following will describe in detail the configuration of basic parameters of the SRS mapping structure in conjunction with the drawings.

[0042] (1-2-1. Port mapping for SRS resources) In NR MIMO, the number of antenna ports of a user equipment may be an integer such as 1, 2, 4, 8, 12, etc., and correspondingly, the number of ports of the SRS resource of each group may be an integer such as 1, 2, 4, 8, or 12. Each subband SRS in the SRS resource of each of the N (N=1, 2, 4, 8, 12, etc.) ports may occupy one or more consecutive OFDM symbols in one time slot (the number of occupied OFDM symbols may be represented as F, for example, where F is an arbitrary integer from 1 to 13), and each of the one or more consecutive OFDM symbols may be distributed to one or more consecutive RBs (i.e., may be arranged across the RBs).

[0043] (1-2-2. Sub-band SRS Bandwidth) Referring again to FIG. 1, the configuration unit 102 configures the subband SRS bandwidth according to the number of ports of the SRS resource of each group, the number of OFDM symbols occupied by each subband SRS resource in the SRS resource of each group, and a sampling factor, and configures the SRS mapping structure by mapping the SRS resource of each group to a time-frequency resource according to a predetermined frequency hopping scheme and the subband SRS bandwidth, so that the SRS resource of each group may cover the entire uplink transmission bandwidth, and the subband SRS bandwidth is an integer multiple of the bandwidth occupied by each resource block (RB). For example, the subband SRS bandwidth W subband Calculate.

[0044]

number

[0045] Wherein, n is any positive integer, N denotes the number of ports of the SRS resource of each group, SF denotes the sampling factor, and F denotes the number of OFDM symbols occupied by each subband SRS resource. subband The unit of is RB, i.e., the subband SRS bandwidth W subband is an integer multiple of the bandwidth occupied by each RB.

[0046] Preferably, the user equipment may send a subband bandwidth allocation request to the base station according to its communication needs, and the subband bandwidth allocation request may be included in dedicated signaling (e.g., SRS_Subband_Request) or uplink scheduling request signaling (Scheduling Request, SR), and explicitly or implicitly indicates to the base station the subband SRS bandwidth that the user equipment wants to configure, so that the configuration unit 102 in the device 100 on the base station side can further configure the subband SRS bandwidth according to the subband bandwidth allocation request from the user equipment, that is, the value of the variable n in the above formula can be reasonably set.

[0047] The notification unit 104 may then explicitly or implicitly notify the user equipment of the configured subband SRS bandwidth by using dedicated signaling (e.g., BS_SRS_Subband_Response corresponding to the above-mentioned dedicated signaling SRS_Subband_Request) or uplink scheduling grant signaling (UL grant).

[0048] Preferably, the dedicated signaling or uplink scheduling grant signaling may further include a start RB number and an end RB number of the SRS resource configuration in the configured SRS mapping structure. Alternatively, the dedicated signaling or uplink scheduling grant signaling may include a start RB number and an uplink transmission bandwidth of the SRS resource configuration in the configured SRS mapping structure. In this way, the location of each subband SRS can be determined in combination with the notified subband SRS bandwidth and frequency hopping scheme.

[0049] Alternatively, the subband SRS bandwidth, the starting RB number, the ending RB number, the uplink transmission bandwidth, etc. allocated to the user equipment may be notified by a combination of the above-mentioned explicit and implicit methods.

[0050] (1-2-3. Sampling coefficient and comb shift amount) The sampling factor SF may be set according to the number of receiving beams waiting to be scanned, for example, SF is a positive integer equal to or greater than the number of receiving beams waiting to be scanned, and an IFDMA model is configured to realize receiving beam scanning in the frequency domain. Meanwhile, in the U2 and U3 processes, although there is no need to perform receiving beam scanning in the frequency domain, setting the sampling factor SF can also make the designed SRS mapping structure have more universal applicability.

[0051] The comb shift amount comb offset may be set to an integer greater than or equal to 0 and less than the sampling factor SF. The base station can configure the same or different comb shift amounts for different user equipments, and configuring different comb shift amounts can reduce interference between user equipments.

[0052] FIG. 3 is a schematic diagram illustrating examples of SRS mapping structures with different parameter configurations according to an embodiment of the present disclosure.

[0053] In the example shown in FIG. 3, the SRS resources of each group have eight ports, which illustrates examples of SRS mapping structures with different parameter configurations.

[0054] In the SRS mapping structure shown in Figure 3(a), there are 6 groups of SRS resources, each group of SRS resources includes 8 ports and occupies one OFDM symbol (i.e., F=1) across two RBs, with a sampling factor SF=3 and a comb shift amount comb offset=0. According to the above formula, in the example shown in Figure 3(a), the subband SRS bandwidth may be an integer multiple of 2RBs, and Figure 3(a) shows an example of an SRS mapping structure in which the subband SRS bandwidth is 2RBs.

[0055] In the SRS mapping structure shown in Figure 3(b), there are three groups of SRS resources, each group of SRS resources includes eight ports, occupies two OFDM symbols in one RB (i.e., F=2), has a sampling factor SF=3, and a comb shift amount comb offset=0. According to the above formula, in the example shown in Figure 3(b), the subband SRS bandwidth may be an integer multiple of 1RB, and Figure 3(b) shows an example of an SRS mapping structure where the subband SRS bandwidth is 1RB.

[0056] The SRS mapping structure shown in Figure 3(c) is almost the same as the SRS mapping structure shown in Figure 3(b), with the difference being that in the example shown in Figure 3(c), the comb shift amount comb offset=2, and compared to the example shown in Figure 3(b) (wherein the starting subcarrier number occupied by the SRS mapping structure is 0), the starting subcarrier number occupied by the SRS mapping structure shown in Figure 3(c) is 2. This is advantageous in reducing mutual interference caused by SRS transmission between user equipments.

[0057] In the example shown in Figure 3(d), there are three groups of SRS resources, each of which includes eight ports and occupies two OFDM symbols across two RBs (i.e., F=2), with a sampling factor SF=6 and a comb shift amount comb offset=5. According to the above formula, in the example shown in Figure 3(d), the subband SRS bandwidth may be an integer multiple of 2RBs, and Figure 3(d) shows an example of an SRS mapping structure where the subband SRS bandwidth is 2RBs.

[0058] Here, in the example shown in (b) to (d) of FIG. 3, when performing port mapping to form an orthogonal cross-polarized antenna, it is preferable to shift each antenna port in a suitable manner. For example, instead of arranging the antenna ports in the order of (0,1), (2,3), (4,5), (6,7), the antenna ports are arranged in the order of (0,1), (4,5), (2,3), (6,7). Of course, such a port mapping manner is an example and not a limitation, and those skilled in the art may make suitable adjustments according to actual application scenarios.

[0059] In addition, Figure 3 shows configuration examples of possible SRS mapping structures having different parameter configurations as examples, but those skilled in the art can design an appropriate SRS mapping structure according to actual application scenarios and the principles of the present disclosure, and such a designed SRS mapping structure can simultaneously realize uplink beam management and CSI acquisition.

[0060] (1-2-4. Subband SRS Frequency Hopping Method) Preferably, the frequency hopping mode of the subband SRS supports consecutive RB frequency hopping and cross RB frequency hopping, and also supports intra-timeslot frequency hopping and inter-timeslot frequency hopping. For example, the right cyclic shift frequency hopping mode shown in Figure 2 is consecutive RB frequency hopping within a time slot, that is, the subband SRSs of each group of SRS resources are all distributed in the same time slot, and each frequency hopping is performed between adjacent RBs.

[0061] More generally, for intra-timeslot frequency hopping, frequency hopping at h-OFDM symbol level can be supported, where h is equal to the number of OFDM symbols occupied by subband SRS in the SRS resource of N ports of each group, i.e., h=F. Also, take the frequency hopping scheme shown in Figure 2 as an example, which is frequency hopping at 1-OFDM symbol level.

[0062] In order to more clearly understand the various frequency hopping schemes supported by the techniques of the present disclosure, a detailed description will now be given with reference to Fig. 4. Fig. 4 is a schematic diagram illustrating an example of a frequency hopping scheme according to an embodiment of the present disclosure.

[0063] Fig. 4(a) shows an example of frequency hopping within a timeslot. As shown in Fig. 4(a), the first subband SRS to the second subband SRS cross four RBs, the second subband SRS to the third subband SRS cross three RBs, the third subband SRS to the fourth subband SRS cross two RBs, the fourth subband SRS to the fifth subband SRS cross one RB, and the fifth subband SRS to the sixth subband SRS are continuous RB frequency hopping.

[0064] FIG. 4(b) shows an example of a mixture of intra-timeslot frequency hopping and inter-timeslot frequency hopping. For clarity, FIG. 4(b) only shows an example of a frequency hopping scheme for the first group of SRS resources (enclosed in a thick solid line frame), and the frequency hopping schemes for the second to sixth groups of SRS resources are the same as the first group of SRS resources. As shown in FIG. 4(b), the first subband SRS to the second subband SRS, the second subband SRS to the third subband SRS, and the third subband SRS to the fourth subband SRS are inter-timeslot frequency hopping, and the fourth subband SRS to the fifth subband SRS, and the fifth subband SRS to the sixth subband SRS are intra-timeslot frequency hopping.

[0065] In addition, different frequency hopping methods including consecutive RB frequency hopping, cross RB frequency hopping, and intra-timeslot frequency hopping and inter-timeslot frequency hopping are shown as examples in FIG. 4, but these are examples and not limitations, and the present disclosure does not limit the specific frequency hopping method. Those skilled in the art can design various frequency hopping patterns according to the principles of the present disclosure in accordance with actual applications. For example, for the SRS mapping structure shown in FIG. 4(a), all frequency hopping patterns are covered, and A 6 6=1*2*3*4*5*6=720 kinds of frequency hopping schemes, which are not listed one by one here.

[0066] In addition, although the present disclosure does not impose any limitations on a specific frequency hopping scheme, it is preferable to make the frequency band difference between two adjacent frequency hops as large as possible, i.e., to make the number of RBs crossed by two adjacent frequency hops as large as possible, thereby reducing interference between user equipment.

[0067] (1-2-5. Installation of other SRS resources) In the above examples shown in Figs. 2 to 4, it is assumed that the example of SRS resource configuration for simultaneously realizing uplink beam management and CSI acquisition occupies all OFDM symbols in one time slot. However, in practical application, the SRS resource configuration may not occupy all OFDM symbols (e.g., occupy only the second to fourth OFDM symbols). Therefore, in order to further improve resource utilization efficiency, in addition to the above SRS resource configuration, the SRS mapping structure according to the embodiment of the present disclosure may further include one or more other SRS resource configurations. Hereinafter, a configuration example of the SRS mapping structure in this case will be described in detail with reference to Fig. 5. Fig. 5 is a schematic diagram showing an example of an SRS mapping structure including different SRS resource configurations according to the embodiment of the present disclosure.

[0068] As shown in Figure 5, in this SRS mapping structure, the SRS resource configuration corresponding to the second to fourth OFDM symbols is almost the same as the SRS resource configuration for simultaneously realizing the above-mentioned uplink beam management and CSI acquisition, and will not be described here repeatedly. The fifth to seventh OFDM symbols include examples of SRS resource configuration for realizing U2 process, U3 process, and U1 process, respectively.

[0069] As shown in Figure 5, the SRS resource configuration corresponding to the fifth to seventh OFDM symbols in the first RB constitutes an SRS resource functional block for realizing a U2 process (shown in a dashed frame), which can realize the scanning of three receiving beams in the time domain, and the functional block does not need to apply an IFDMA model. The SRS resource configuration corresponding to the fifth to seventh OFDM symbols in the second RB constitutes an SRS resource functional block for realizing a U3 process (shown in a dashed frame), which can realize the scanning of three transmitting beams in the time domain, and the functional block also does not need to apply an IFDMA model. The SRS resource configuration corresponding to the fifth to seventh OFDM symbols in the third RB constitutes an SRS resource functional block for realizing a U1 process (shown in a dashed frame), which needs to apply an IFDMA model, which realizes the scanning of three transmitting beams in the time domain, and realizes the scanning of three receiving beams in the frequency domain.

[0070] For SRS resource configuration used only for beam management, multi-port measurement is not required, so the number of ports of SRS resources in each group in SRS resource configuration used for uplink beam management may be one, which can be seen in Figure 5 as, for example, port 0.

[0071] In addition, although not shown in the drawings, the SRS mapping structure may further include an SRS resource configuration for realizing CSI acquisition only, in which the number of ports of each group of SRS resources in the SRS resource configuration corresponds to the number of antenna ports of the user equipment, and broadband measurement is realized according to a predetermined frequency hopping manner, which will not be described in detail here.

[0072] The SRS mapping structure shown in Figure 5 includes multiple SRS resource configurations, which can more flexibly adapt to the needs of different situations and fully utilize uplink transmission resources. However, in general, when performing uplink transmission, the user equipment needs to periodically perform uplink beam management and CSI acquisition, so the SRS resource configuration that can simultaneously realize beam management and CSI acquisition according to the embodiment of the present disclosure has universal applicability.

[0073] (1-2-6. Notification of SRS mapping structure) The position of the OFDM symbol occupied by the SRS may be indicated in the form of a vector. Specifically, for example, taking as an example that each time slot includes seven OFDM symbols (or may include 14 OFDM symbols), a 7-bit vector x may be defined. If any resource element of one OFDM symbol is occupied by the SRS resource, the bit position corresponding to the OFDM symbol is represented as 1, otherwise it is represented as 0. Taking (a) of FIG. 2 as an example, the first OFDM symbol is generally used for controlling a channel and may not be occupied by the SRS resource, and the second to seventh OFDM symbols are all occupied by the SRS resource, and the vector x corresponding to the SRS resource setting may be represented as {0111111}.

[0074] Alternatively, since the SRS resources included in each SRS configuration in the SRS mapping structure generally occupy consecutive OFDM symbols as described above, the positions of the OFDM symbols occupied by the SRS resources within one time slot may be notified by indicating the position of the starting SRS resource of each SRS resource configuration (e.g., the number of the starting OFDM symbol occupied) and the total number of occupied OFDM symbols.

[0075] By selecting an appropriate notification method according to a specific SRS mapping structure, it is possible to save signaling overhead. For example, when the SRS mapping structure includes only one SRS resource setting, the signaling overhead of the second notification method (i.e., starting SRS resource position + number of occupied OFDM symbols) may be small and may be used preferentially. On the other hand, when the SRS mapping structure includes multiple SRS resource settings, the signaling overhead of the first notification method (i.e., using vector x) may be smaller, so in this case, the notification method is used preferentially.

[0076] Preferably, in order to further improve the utilization rate of uplink resources, the configuration unit 102 may further be configured according to actual conditions to multiplex the OFDM symbols occupied by the SRS resources and the OFDM symbols occupied by at least one of a physical random access channel (PRACH), a physical uplink control channel (PUCCH), a demodulation reference signal (DMRS), and a physical uplink shared channel (PUSCH); when configured to allow multiplexing, the configuration unit 102 sets the SRS resources to a low priority, so that when a collision occurs or the transmission of the SRS signal affects the transmission of other signals on the multiplexed OFDM symbols, the SRS signal to be transmitted is discarded to ensure the transmission of other high priority signals.

[0077] For example, a 4-bit vector c may be defined to inform the user equipment whether multiplexing in the above four cases is permitted, where the case where multiplexing is permitted is represented as 1, and the case where multiplexing is prohibited is represented as 0. As an example, assuming that the base station is configured to permit multiplexing with PRACH, prohibit multiplexing with PUCCH, permit multiplexing with DMRS, and permit multiplexing with PUSCH, the vector c may be represented as {1011}, whereby the notification unit 104 may notify the user equipment of the vector c, and the user equipment may transmit the SRS by multiplexing with other signals after receiving the notification regarding the multiplexing.

[0078] Meanwhile, after a collision occurs and the base station discards the SRS where a collision occurs, the notification unit 104 needs to notify the user equipment (for example, signaling SRS_Multiplexing_False may be designed) to inform the user equipment that the SRS transmitted by the user equipment is discarded and needs to be retransmitted.

[0079] As a preferred example, regarding the above notification content, signaling SRS_OFDM_Symbol_Location may be designed to notify the user equipment of information such as the location of the OFDM symbol occupied by the SRS, an instruction regarding the multiplexing status, and the location of the OFDM symbol to be multiplexed.

[0080] Meanwhile, since the SRS mapping structure is generally configured in units of subcarriers or RBs, preferably, the signaling unit 104 may signal the SRS mapping structure in the form of a bitmap. The bitmap is generated, for example, in the following manner, for each subcarrier, the RE occupied by the SRS resource is represented as 1, and the RE not occupied by the SRS resource is represented as 0 to generate the bitmap, so that each subcarrier corresponds to one 7-bit (or 14-bit) vector b.

[0081] The notification unit 104 may notify the user equipment of the bitmap corresponding to the SRS mapping structure, for example, by RRC signaling, DCI, or a combination thereof. The RRC signaling notification period is long and can carry many contents, while the DCI notification period is short and has high real-time capability, but the carrier content is limited due to the lack of physical layer resources. Therefore, when actually performing notification, an appropriate selection should be made according to the specific case (such as the scale of the SRS mapping structure, real-time requirements, etc.), and the present disclosure does not specifically limit the selection here.

[0082] The above SRS mapping structure including SRS resource configuration that can simultaneously realize uplink beam management and CSI acquisition reduces the system time delay and improves the uplink resource utilization rate, but has the problem of increasing system overhead. On the other hand, the independent SRS mapping structure that realizes the beam management function and the CSI acquisition function respectively increases the system time delay but can reduce the system overhead. Therefore, in practical applications, the SRS mapping structure can be configured according to different conditions and needs.

[0083] For example, the configuration of the SRS mapping structure may be determined according to the number of antenna ports of the user equipment. For example, when the number of antenna ports of the user equipment is below a certain threshold, an SRS mapping structure that can simultaneously realize uplink beam management and CSI acquisition according to the embodiment of the present disclosure may be configured, that is, the smaller the number of antenna ports of the user equipment, the more the SRS mapping structure needs to be configured. Conversely, when the number of antenna ports of the user equipment is too large (i.e., exceeds the certain threshold), an SRS mapping structure (also referred to as an independent SRS mapping structure) that respectively realizes uplink beam management and CSI acquisition may be configured.

[0084] Meanwhile, as described above, the SRS mapping structure according to the embodiment of the present disclosure can improve uplink resource utilization. Therefore, the uplink resource utilization of the user equipment is periodically monitored, and when the uplink resource utilization is below a certain threshold, an SRS mapping structure that can simultaneously realize uplink beam management and CSI acquisition is configured in the user equipment, that is, the lower the uplink resource utilization is, the more the SRS mapping structure needs to be configured.

[0085] The larger the predetermined threshold for the number of antenna ports and the predetermined threshold for the uplink resource utilization rate are set, the more favorable it is for the SRS mapping structure according to the present disclosure to be configured. Those skilled in the art can reasonably set the predetermined threshold according to actual needs, and the present disclosure does not specifically limit it.

[0086] According to the above embodiment of the present disclosure, an SRS mapping structure capable of simultaneously realizing uplink beam management and CSI acquisition is designed, and a parameter configuration and notification method related to the SRS mapping structure are described. The SRS mapping structure designed in this way can reduce the system time delay and improve the uplink resource utilization efficiency. In addition, a judgment condition for dynamically configuring the SRS mapping structure is provided, which balances the system time delay and system overhead, thereby more reasonably configuring the required SRS mapping structure according to actual needs.

[0087] It should be noted that the above-mentioned apparatus 100 may be realized at a chip level, or may be realized at a device level by including other external components. For example, the apparatus 100 may include a communication unit (optionally shown in a dashed frame) for performing communication operations. For example, the communication unit is used to notify the user equipment of the configured SRS mapping structure, discard the SRS where a collision occurs, etc., and to receive an SRS resource allocation request, a subband bandwidth allocation request, an SRS, etc. from the user equipment.

[0088] [2. Example of user device configuration] Corresponding to the above-mentioned example of the configuration of the base station side device, hereinafter, an example of the functional configuration of the user equipment side device according to the embodiment of the present disclosure will be described with reference to Fig. 6. Fig. 6 is a block diagram showing an example of the functional configuration of the user equipment side device in the wireless communication system according to the embodiment of the present disclosure.

[0089] As shown in FIG. 6, an apparatus 600 according to this embodiment includes a control unit 602 .

[0090] The control unit 602 is configured to control the user equipment to send SRS to the base station on corresponding time-frequency resources according to an SRS mapping structure notified by the base station. The SRS mapping structure includes at least SRS resource configuration for simultaneously realizing uplink beam management and CSI acquisition. For a specific configuration example of the SRS mapping structure, please refer to the corresponding description above, and will not be described again here.

[0091] Preferably, the control unit 602 may be further configured to control the user equipment to sequentially transmit SRS to the base station on different transmit beams waiting to be scanned for the above U1 process and U3 process, thereby realizing transmit beam scanning, and to control the user equipment to sequentially transmit SRS to the base station on the same transmit beam for the above U2 process, thereby realizing receive beam scanning.

[0092] Preferably, the control unit 602 may be further configured to control the user equipment to transmit the SRS to the base station by multiplexing with other signals according to an instruction on the multiplexing status notified from the base station (e.g., the vector c defined above, which may be included in the signaling SRS_OFDM_Symbol_Location on the base station side). Also, when receiving a notification from the base station that the SRS transmitted by multiplexing has been discarded due to collision, the control unit 602 may control the user equipment to retransmit the discarded SRS. Also, preferably, in order to avoid wasting transmission power, the control unit 602 may be further configured to allocate the power originally allocated for transmitting the discarded SRS to other signals multiplexed with the SRS by using a power boosting technique.

[0093] Preferably, the control unit 602 may be configured to transmit the user equipment's subband bandwidth allocation request to the base station in dedicated signaling (e.g., the above-mentioned SRS_Subband_Request) or an uplink scheduling request (SR), so that the base station determines the subband SRS bandwidth.

[0094] Preferably, the control unit 602 also generates a user equipment SRS resource allocation request (eg, SRS_Resource_Request) to request the base station to allocate a required number of SRS resources.

[0095] The above-mentioned apparatus 600 may be realized at a chip level, or may be realized at a device level by including other external components. For example, the apparatus 600 may further include a communication unit (optionally shown in a dashed box) for performing communication operations. For example, the communication unit may be used to perform receiving an SRS mapping structure and other related parameter configuration notified from a base station, sending an SRS resource allocation request, a sub-band bandwidth allocation request, an SRS, etc. to the base station, etc.

[0096] In addition, since the embodiment of the user equipment side device 600 described here corresponds to the embodiment of the base station side device 100 described above, for the contents that are not described in detail in this embodiment, please refer to the explanations of the corresponding parts above and will not be repeated here.

[0097] 2 and 6 are logical blocks divided according to the specific functions they realize, and do not limit the specific implementation manner. In actual implementation, the functional units and modules may be realized as independent physical entities or as a single entity (e.g., a processor (e.g., CPU, DSP, etc.), an integrated circuit, etc.).

[0098] It should be noted that the above description of the device embodiments of the present disclosure is given with reference to the block diagrams shown in Figures 2 and 6, but this is merely an example and not a limitation. Those skilled in the art may modify the illustrated functional configuration examples according to the principles of the present disclosure, for example, by adding, deleting, modifying, combining, etc., each functional module therein, and such modifications are within the scope of the present disclosure.

[0099] 3. Signaling design and interaction process according to the embodiment of the present disclosure To facilitate understanding of the principles of the present disclosure, the signaling design and interaction process for implementing the techniques of the present disclosure will now be described with reference to the flowcharts shown in FIGS. 7A and 7B.

[0100] FIG. 7A is a flow chart illustrating a first example of a signaling interaction process according to an embodiment of the present disclosure.

[0101] As shown in FIG. 7A, first, in step S701, the user equipment sends an SRS resource allocation request (e.g., SRS_Resource_Request) to the base station to request the base station to allocate SRS resources to the user equipment. Next, in step S702, the base station responds to the request from the user equipment to determine whether the number of antenna ports of the user equipment is smaller than a predetermined threshold, and if it determines that the number of antenna ports is smaller than the predetermined threshold, configures an SRS mapping structure for the user equipment that can simultaneously realize uplink beam management and CSI acquisition according to the above method. Then, in step S703, the base station notifies the user equipment of the determined SRS mapping structure, for example, by using the signaling SRS_Unified_Structure shown in the figure, and the signaling may include a series of allocation information such as specific SRS resources, port mapping, shift amount, sampling coefficient, etc. In step S704, the user equipment feedbacks to the base station (e.g., signaling UE_SRS_Structure_Feedback shown in the figure) to indicate whether the user equipment successfully receives the configured SRS mapping structure. For example, feedback UE_SRS_Structure_Feedback=1 indicates that the user equipment successfully receives the configuration, otherwise, indicates that the user equipment fails to receive the configuration. If the reception is successful, in step S705, the user equipment transmits an SRS to the base station on the corresponding time-frequency resource according to the received SRS mapping structure.

[0102] FIG. 7B is a flow chart illustrating a second example of a signaling interaction process according to an embodiment of the present disclosure.

[0103] The flowchart shown in FIG. 7B is almost the same as the flowchart shown in FIG. 7A, with the following differences: in step S702', the base station determines that the number of antenna ports of the user equipment is greater than a predetermined threshold, and then in step S703', determines whether the uplink resource utilization rate of the user equipment is below a predetermined threshold. If it is determined that the uplink resource utilization rate is below the predetermined threshold, the base station configures an SRS mapping structure in the user equipment that can simultaneously realize uplink beam management and CSI acquisition, and then in step S704', notifies the user equipment of the configured SRS mapping structure (SRS_Unified_Structure).

[0104] In addition, since the number of antenna ports of the user equipment is generally fixed and the uplink resource utilization rate changes dynamically, in the subsequent operation, the base station needs to periodically monitor the uplink resource utilization rate of the user equipment, and when it determines that the uplink resource utilization rate exceeds a predetermined threshold (step S707'), it configures an independent SRS mapping structure for realizing uplink beam management and CSI acquisition respectively in the user equipment, and notifies the configured independent SRS mapping structure (e.g., signaling SRS_Independent_Structure) to the user equipment in step S708'. Then, the user equipment performs a similar feedback operation in step S709', and when it receives that the configuration is successful, it transmits an SRS to the base station on the corresponding time-frequency resource according to the received SRS mapping structure in step S710'.

[0105] Here, it should be understood that when determining which SRS mapping structure to configure in the user equipment, if at least one of the conditions that the number of antenna ports is below a predetermined threshold and the uplink resource utilization rate is below a predetermined threshold is satisfied, an SRS mapping structure that can simultaneously realize uplink beam management and CSI acquisition (i.e., a so-called integrated SRS mapping structure) is configured in the user equipment; otherwise, an SRS mapping structure that realizes uplink beam management and CSI acquisition separately (i.e., a so-called independent SRS mapping structure) is configured in the user equipment.

[0106] It should be noted that the signaling interaction flow shown in FIG. 7A and FIG. 7B is an example provided to explain the principle of the present disclosure, and those skilled in the art may make appropriate modifications according to the principle of the present disclosure, and such modifications are within the scope of the present disclosure. For example, in steps S701 and S701', instead of sending an SRS resource allocation request to the base station, a subband bandwidth allocation request (SRS_Subband_Request) may be sent to the base station to instruct the base station on the subband SRS bandwidth allocation desired by the user equipment, and the base station may feedback the request to the user equipment (e.g., BS_SRS_Subband_Response) to instruct the base station whether to accept the subband bandwidth allocation request of the user equipment, or these two steps may be omitted, and the base station may configure the SRS mapping structure according to the resource utilization situation and the related information of the user equipment (such as the number of beams waiting to be scanned, the number of antenna ports, etc.) without considering the resource needs of the user equipment. Also, for example, when the SRS is discarded due to a collision in multiplexing as described above, the base station may notify the user equipment to retransmit the discarded SRS.

[0107] Additionally, although steps are numbered chronologically in Figures 7A and 7B for ease of illustration, these numbers do not indicate the order in which these steps are performed, and in fact, certain steps may be performed in parallel or out of order.

[0108] 4. A method in a wireless communication system according to an embodiment of the present disclosure Corresponding to the above apparatus embodiment, a method embodiment according to the present disclosure will now be described with reference to FIGS.

[0109] (4-1. Base station method) FIG. 8 is a flowchart illustrating an example of a process of a base station side method in a wireless communication system according to an embodiment of the present disclosure.

[0110] As shown in Fig. 8, the method 800 starts from step S801. In step S801, configure a sounding reference signal (SRS) mapping structure for the user equipment according to at least the number of antenna ports of the user equipment and the number of transmit beams and / or receive beams to be scanned, the SRS mapping structure at least includes SRS resource configuration that can simultaneously realize uplink beam management and CSI acquisition. For the specific configuration of the SRS mapping structure, please refer to the corresponding description in the above device embodiment, and will not be described again here.

[0111] Then, the method proceeds to step S802. In step S802, the configured SRS mapping structure is notified to the user equipment. For a specific notification manner and related parameter information that needs to be notified, please refer to the corresponding description in the above device embodiment, and will not be described again here.

[0112] (4-2. Method on the user device side) FIG. 9 is a flowchart illustrating an example process of a user equipment side method in a wireless communication system according to an embodiment of the present disclosure.

[0113] As shown in Fig. 9, the method 900 according to this embodiment starts in step S901. In step S901, an SRS mapping structure transmitted from a base station is obtained. The SRS mapping structure includes at least an SRS resource configuration that can simultaneously realize uplink beam management and CSI acquisition.

[0114] Then, the method proceeds to step S902, in which the user equipment is controlled to transmit the SRS to the base station on the corresponding time-frequency resource according to the obtained SRS mapping structure.

[0115] Here, the method embodiments described with reference to Figures 8 and 9 correspond to the apparatus embodiments described with reference to Figures 1 and 6 above, respectively, so for the contents not described in detail here, please refer to the descriptions of the corresponding positions above and they will not be described repeatedly here.

[0116] It should be noted that, although the above describes examples of the process of the method in the wireless communication system according to the embodiments of the present disclosure, the same is illustrative and not limiting. Those skilled in the art can make modifications to the above embodiments in accordance with the principles of the present disclosure, for example, adding, deleting or combining steps in each embodiment, and these modifications are also within the scope of the present disclosure.

[0117] In addition, the machine-executable instructions in the storage medium and program product according to the embodiments of the present disclosure can also be configured to execute a method corresponding to the above-mentioned apparatus embodiments, so for the contents not described in detail here, please refer to the previous descriptions of the corresponding locations and they will not be described repeatedly here.

[0118] Accordingly, a storage medium for storing a program product including the above machine-executable instructions is also included in the disclosure of the present invention, including but not limited to a floppy disk, an optical disk, a magneto-optical disk, a memory card, a memory stick, etc.

[0119] 5. Calculation device for implementing the device and method of the present disclosure The above series of processes and devices may be realized by software and / or firmware. When realized by software and / or firmware, the programs constituting the software are installed from a storage medium or a network into a computer having a dedicated hardware structure, for example, a general-purpose personal computer 1000 shown in Fig. 10, and this computer can execute various functions after installing various programs. Fig. 10 is a block diagram showing a schematic configuration of a personal computer as an information processing device that can be adopted in the embodiment of the present disclosure.

[0120] 10, a central processing unit (CPU) 1001 executes various processes according to programs stored in a read-only storage medium (ROM) 1002 or programs loaded from a storage unit 1008 to a random access memory (RAM) 1003. The RAM 1003 also stores data required when the CPU 1001 executes various processes, etc., as necessary.

[0121] The CPU 1001, the ROM 1002, and the RAM 1003 are connected to one another via a bus 1004. An input / output interface 1005 is also connected to the bus 1004.

[0122] An input unit 1006 including a keyboard, a mouse, etc., an output unit 1007 including a display such as a cathode ray tube (CRT) or a liquid crystal display (LCD), a speaker, etc., a storage unit 1008 including a hard disk, etc., and a communication unit 1009 including a network interface card, such as a LAN card, a modem, etc. are connected to the input / output interface 1005. The communication unit 1009 executes communication processing via a network, for example, the Internet.

[0123] The driver 1010 may be connected to the input / output interface 1005 as necessary. A removable medium 1011, for example, a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, or the like, is mounted in the driver 1010 as necessary, so that a computer program read from the removable medium 1011 is installed in the storage unit 1008 as necessary.

[0124] When the above series of processes is realized by software, the programs constituting the software are installed from a network, for example, the Internet, or a storage medium, for example, the removable medium 1011 .

[0125] Those skilled in the art should understand that such a storage medium is not limited to the removable medium 1011 shown in Fig. 10 in which the program is stored and distributed separately from the device to provide the program to the user. Examples of the removable medium 1011 include magnetic disks (including floppy disks (registered trademark)), optical disks (optical disk read-only storage media (CD-ROM) and digital versatile disks (DVD)), magneto-optical disks (including mini disks (MD) (registered trademark)), and semiconductor memories. Alternatively, the storage medium may be the ROM 1002, a hard disk included in the storage unit 1008, etc., which stores the program and is distributed to the user together with the device including them.

[0126] [6. Technical Application Examples of the Disclosure] The technology of the present disclosure can be applied to various products. The base station mentioned in the present disclosure may be realized as a gNodeB (gNB) and any type of evolved NodeB (eNB), such as a macro eNB and a small eNB. The small eNB may be an eNB covering a cell smaller than a macro cell, such as a picofarad eNB, a micro eNB, or a home (femto) eNB. Alternatively, the base station may be realized as any other type of base station, such as a NodeB and a base transceiver station (BTS). The base station may include a main body (also referred to as a base station device) arranged to control wireless communication, and one or more remote radio heads (RRH) installed at a location different from the main body. In addition, various types of terminals described below operate as a base station by temporarily or semi-permanently performing base station functions.

[0127] For example, the UE referred to in this disclosure may be realized as, for example, a mobile terminal (e.g., a smartphone, a tablet personal computer (PC), a notebook PC, a portable game terminal, a portable / watchdog type mobile router and a digital imaging device) or an in-vehicle terminal (e.g., a car navigation device). The UE may also be realized as a terminal that performs machine-to-machine (M2M) communication (also referred to as a machine-type communication (MTC) terminal). The UE may also be a wireless communication module (e.g., an integrated circuit module including a single chip) attached to each terminal in the above terminals.

[0128] Hereinafter, application examples according to the present disclosure will be described with reference to FIGS.

[0129] (6-1. Application examples for base stations) 11 is a block diagram showing a first example of a schematic configuration of an eNB to which the technology of the present disclosure can be applied. The eNB 1100 includes one or more antennas 1111 and a base station device 1120. The base station device 1120 and each antenna 1111 may be connected to each other via an RF cable.

[0130] Each of the antennas 1110 includes one or multiple antenna elements (e.g., multiple antenna elements included in a multiple-input multiple-output (MIMO) antenna) and is used for transmitting and receiving radio signals by the base station device 1120. The eNB 1100 may include multiple antennas 1110 as shown in FIG. 11. The multiple antennas 1110 may be shared with multiple frequency bands used by the eNB 1100. Here, while FIG. 11 shows an example in which the eNB 1100 includes multiple antennas 1110, the eNB 1100 may include a single antenna 1110.

[0131] The base station device 1120 includes a controller 1121 , a memory 1122 , a network interface 1123 , and a wireless communication interface 1125 .

[0132] The controller 1121 may be, for example, a CPU or a DSP, and operates various functions of the upper layer of the base station device 1120. For example, the controller 1121 generates a data packet from data in a signal processed by the wireless communication interface 1125, and transfers the generated packet via the network interface 1123. The controller 1121 may generate a bundled packet by bundling data from multiple baseband processors, and transfer the generated bundled packet. The controller 1121 may also have a logical function of performing control such as radio resource management, radio bearer control, mobility management, admission control, and scheduling. The control may also be performed in cooperation with a surrounding eNB or core network node. The memory 1122 includes a RAM and a ROM, and stores programs executed by the controller 1121 and various control data (e.g., a terminal list, transmission power data, and scheduling data).

[0133] The network interface 1123 is a communication interface for connecting the base station device 1120 to the core network 1124. The controller 1121 may communicate with a core network node or other eNBs via the network interface 1123. In this case, the eNB 1100 and the core network node or other eNBs are connected to each other by a logic interface (e.g., an S1 interface and an X2 interface). The network interface 1123 may be a wired communication interface or a wireless communication interface used for a wireless backhaul line. If the network interface 1123 is a wireless communication interface, the network interface 1123 can use a frequency band higher than the frequency band used by the wireless communication interface 1125 for wireless communication.

[0134] The wireless communication interface 1125 supports any cellular communication method (e.g., LTE (Long Term Evolution), LTE-New Radio) and provides wireless connection to terminals located within the cell of the eNB 1100 via the antenna 1110. The wireless communication interface 1125 may generally include a baseband (BB) processor 1126 and an RF circuit 1127. The BB processor 1126 may perform, for example, encoding / decoding, modulation / demodulation, and multiplexing / demultiplexing, and may perform various types of signal processing of layers (e.g., L1, medium access control (MAC), radio link control (RLC), packet data convergence protocol (PDCP)). Instead of the controller 1121, the BB processor 1126 may have some or all of the above logic functions. The BB processor 1126 may be a memory that stores a communication control program, or may be a module including a processor and related circuits arranged to execute the program. The function of the BB processor 1126 can be changed by updating the program. The module may be a card or blade that is inserted into a slot in the base station device 1120. Alternatively, the module may be a chip mounted on the card or blade, while the RF circuitry 1127 may include, for example, mixers, filters, and amplifiers, and transmits and receives radio signals via the antenna 1110.

[0135] As shown in Fig. 11, the wireless communication interface 1125 may include multiple BB processors 1126. For example, the multiple BB processors 1126 may be shared by multiple frequency bands used by the eNB 1100. As shown in Fig. 11, the wireless communication interface 1125 may include multiple RF circuits 1127. For example, the multiple RF circuits 1127 may be shared by multiple antenna elements. Although Fig. 11 shows an example in which the wireless communication interface 1125 includes multiple BB processors 1126 and multiple RF circuits 1127, the wireless communication interface 1125 may include a single BB processor 1126 or a single RF circuit 1127.

[0136] (Second application example) 12 is a block diagram showing a second example of a schematic configuration of an eNB to which the technology of the present disclosure can be applied. The eNB 1230 includes one or more antennas 1240, a base station device 1250, and an RRH 1260. The RRH 1260 may be connected to each antenna 1240 via an RF cable. The base station device 1250 and the RRH 1260 may be connected to each other by, for example, a high-speed line of an optical fiber cable.

[0137] Each of the antennas 1240 includes one or more antenna elements (e.g., multiple antenna elements included in a MIMO antenna) and is used for transmitting and receiving radio signals by the RRH 1260. As shown in Fig. 12, the eNB 1230 may include multiple antennas 1240. For example, the multiple antennas 1240 may be shared with multiple frequency bands used by the eNB 1230. Although Fig. 12 shows an example in which the eNB 1230 includes multiple antennas 1240, the eNB 1230 may include one antenna 1240.

[0138] The base station device 1250 includes a controller 1251, a memory 1252, a network interface 1253, a wireless communication interface 1255, and a connection interface 1257. The controller 1251, the memory 1252, and the network interface 1253 are the same as the controller 1121, the memory 1122, and the network interface 1123 described with reference to FIG.

[0139] The wireless communication interface 1255 supports any cellular communication method (e.g., LTE, LTE-New Radiod) and provides wireless communication to a terminal located in a sector corresponding to the RRH 1260 via the RRH 1260 and the antenna 1240. The wireless communication interface 1255 may generally include, for example, a BB processor 1256. The BB processor 1256 is connected to the RF circuit 1264 of the RRH 1260 via a connection interface 1257, and the BB processor 1256 is the same as the BB processor 1326 described with reference to FIG. 13. As shown in FIG. 12, the wireless communication interface 1255 may include multiple BB processors 1256. For example, the multiple BB processors 1256 may be shared with multiple frequency bands used by the eNB 1230. Although FIG. 12 shows an example in which the wireless communication interface 1255 includes multiple BB processors 1256, the wireless communication interface 1255 may include one BB processor 1256.

[0140] The connection interface 1257 is an interface for connecting the base station device 1250 (wireless communication interface 1255) to the RRH 1260. The connection interface 1257 may be a communication module for communication over the above-mentioned high-speed line that connects the base station device 1250 (wireless communication interface 1255) to the RRH 1260.

[0141] The RRH 1260 includes a connection interface 1261 and a wireless communication interface 1263 .

[0142] The connection interface 1261 is an interface for connecting the RRH 1260 (wireless communication interface 1263) to the base station device 1250. The connection interface 1261 may be a communication module for communication over the above-mentioned high-speed line.

[0143] The wireless communication interface 1263 transmits and receives wireless signals via the antenna 1240. The wireless communication interface 1263 may generally include, for example, an RF circuit 1264. The RF circuit 1264 may include, for example, a mixer, a filter, and an amplifier, and transmits and receives wireless signals via the antenna 1240. As shown in FIG. 12, the wireless communication interface 1263 may include multiple RF circuits 1264. For example, the multiple RF circuits 1264 may support multiple antenna elements. Although FIG. 12 shows an example in which the wireless communication interface 1263 includes multiple RF circuits 1264, the wireless communication interface 1263 may include one RF circuit 1264.

[0144] 11 and 12, the communication units in the above-mentioned devices may be realized by the wireless communication interface 1125 and the wireless communication interface 1255 and / or the wireless communication interface 1263. At least some of the functions of the configuration unit 102, the determination unit 106, and the control unit 108 in the device 100 may be realized by the controller 1121 and the controller 1251.

[0145] (6-2. Application examples for user devices) (First application example) 13 is a block diagram showing an example of a schematic configuration of a smartphone 1300 to which the technology of the present disclosure can be applied. The smartphone 1300 includes a processor 1301, a memory 1302, a storage device 1303, an external connection interface 1304, an imaging device 1306, a sensor 1307, a microphone 1308, an input device 1309, a display device 1310, a speaker 1311, a wireless communication interface 1312, one or more antenna switches 1315, one or more antennas 1316, a bus 1317, a battery 1318, and an auxiliary controller 1319.

[0146] The processor 1301 may be, for example, a CPU or a SoC (System on Chip), and controls the functions of the application layer and other layers of the smartphone 1300. The memory 1302 includes a RAM and a ROM, and stores data and programs executed by the processor 1301. The storage device 1303 may include a storage medium, for example, a semiconductor memory or a hard disk. The external connection interface 1304 is an interface for connecting an external device (for example, a memory card or a USB (Universal Serial Bus) device) to the smartphone 1300.

[0147] The imaging device 1306 includes an image sensor (e.g., a charge coupled device (CCD) or a complementary metal oxide semiconductor (CMOS)) and generates a captured image. The sensor 1307 may include a group of sensors such as a measurement sensor, a gyro sensor, a geomagnetic sensor, and an acceleration sensor. The microphone 1308 converts a voice input to the smartphone 1300 into an audio signal. The input device 1309 includes, for example, a touch sensor, a keypad, a keyboard, a button, or a switch arranged to detect a touch on the screen of the display device 1310, and receives an operation or information input from a user. The display device 1310 includes a screen (e.g., a liquid crystal display (LCD), an organic light emitting diode (OLED) display), and displays an output image of the smartphone 1300. The speaker 1311 converts an audio signal output from the smartphone 1300 into audio.

[0148] The wireless communication interface 1312 supports any cellular communication system (e.g., LTE, LTE-New Radio) and performs wireless communication. The wireless communication interface 1312 may generally include, for example, a BB processor 1313 and an RF circuit 1314. The BB processor 1313 may perform, for example, encoding / decoding, modulation / demodulation, and multiplexing / demultiplexing, and performs various types of signal processing for wireless communication. Meanwhile, the RF circuit 1314 may include, for example, a mixer, a filter, and an amplifier, and transmits and receives wireless signals via an antenna 1316. The wireless communication interface 1312 may be a one-chip module that integrates the BB processor 1313 and the RF circuit 1314. As shown in FIG. 13, the wireless communication interface 1312 may include multiple BB processors 1313 and multiple RF circuits 1314. Although FIG. 13 shows an example in which the wireless communication interface 1312 includes multiple BB processors 1313 and multiple RF circuits 1314, the wireless communication interface 1312 may include one BB processor 1313 or one RF circuit 1314.

[0149] In addition to the cellular communication scheme, the wireless communication interface 1312 may support other types of wireless communication schemes, such as a short-distance wireless communication scheme, a proximity wireless communication scheme, or a wireless LAN (Local Area Network) scheme. In this case, the wireless communication interface 1312 may include a BB processor 1313 and an RF circuit 1314 for each wireless communication scheme.

[0150] Each of the antenna switches 1315 hands over the connection of the antenna 1316 between multiple circuits (eg, circuits for different wireless communication methods) included in the wireless communication interface 1312.

[0151] Each of the antennas 1316 includes one or more antenna elements (e.g., multiple antenna elements included in a MIMO antenna) and is used for transmitting and receiving wireless signals through the wireless communication interface 1312. As shown in Fig. 13, the smartphone 1300 may include multiple antennas 1316. Although Fig. 13 shows an example in which the smartphone 1300 includes multiple antennas 1316, the smartphone 1300 may include one antenna 1316.

[0152] The smartphone 1300 may also include an antenna 1316 for each wireless communication method. In this case, the antenna switch 1315 may be omitted from the configuration of the smartphone 1300.

[0153] The bus 1317 connects the processor 1301, the memory 1302, the storage device 1303, the external connection interface 1304, the image capture device 1306, the sensor 1307, the microphone 1308, the input device 1309, the display device 1310, the speaker 1311, the wireless communication interface 1312, and the auxiliary controller 1319 to one another. The battery 1318 supplies power to each block of the smartphone 1300 shown in FIG. 13 via a feeder line partially indicated by a dashed line in the figure. The auxiliary controller 1319 operates the minimum necessary functions of the smartphone 1319, for example, in a sleep mode.

[0154] 13, the communication unit in the above-mentioned device may be realized by a wireless communication interface. At least a part of the functions of the control unit 602 in the device 600 may be realized by the processor 1301 or the auxiliary controller 1319.

[0155] (Second application example) 14 is a block diagram showing an example of a schematic configuration of a car navigation device 1420 to which the technology of the present disclosure can be applied. The car navigation device 1420 includes a processor 1421, a memory 1422, a GPS (Global Positioning System) module 1424, a sensor 1425, a data interface 1426, a content player 1427, a storage medium interface 1428, an input device 1429, a display device 1430, a speaker 1431, a wireless communication interface 1433, one or more antenna switches 1436, one or more antennas 1437, and a battery 1438.

[0156] The processor 1421 may be, for example, a CPU or an SoC, and controls the navigation function and other functions of the car navigation device 1420. The memory 1422 includes a RAM and a ROM, and stores data and programs executed by the processor 1421.

[0157] The GPS module 1424 uses GPS signals received from GPS satellites to measure the position (e.g., latitude, longitude, and altitude) of the car navigation device 1420. The sensor 1425 may include a sensor group of, for example, a gyro sensor, a geomagnetic sensor, and an air pressure sensor. The data interface 1426 is connected to, for example, an in-vehicle network 1441 via a terminal (not shown) and acquires data generated by the vehicle (e.g., vehicle speed data).

[0158] The content player 1427 plays content stored on a storage medium (e.g., a CD or DVD) inserted into the storage medium interface 1428. The input device 1429 includes, for example, a touch sensor, a button, or a switch arranged to detect a touch on the screen of the display device 1430, and receives operations or information input from a user. The display device 1430 includes, for example, an LCD or OLED display screen, and displays images of the navigation function or the content to be played. The speaker 1431 outputs sound of the navigation function or the content to be played.

[0159] The wireless communication interface 1433 supports any cellular communication method (e.g., LTE, LTE-New Radio) and performs wireless communication. The wireless communication interface 1433 may generally include, for example, a BB processor 1434 and an RF circuit 1414. The BB processor 1434 may perform, for example, encoding / decoding, modulation / demodulation, and multiplexing / demultiplexing, and performs various types of signal processing for wireless communication. Meanwhile, the RF circuit 1414 may include, for example, a mixer, a filter, and an amplifier, and transmits and receives wireless signals via an antenna 1437. The wireless communication interface 1433 may be a one-chip module that integrates the BB processor 1434 and the RF circuit 1414. As shown in FIG. 14, the wireless communication interface 1433 may include multiple BB processors 1434 and multiple RF circuits 1414. Although FIG. 14 shows an example in which the wireless communication interface 1433 includes multiple BB processors 1434 and multiple RF circuits 1414, the wireless communication interface 1433 may include one BB processor 1434 or one RF circuit 1414.

[0160] In addition to the cellular communication system, the wireless communication interface 1433 may support other types of wireless communication systems, such as a short-distance wireless communication system, a close-proximity wireless communication system, or a wireless LAN system. In this case, the wireless communication interface 1433 may include a BB processor 1434 and an RF circuit 1414 for each wireless communication system.

[0161] Each of the antenna switches 1436 hands over the connection of the antenna 1437 between multiple circuits (eg, circuits for different wireless communication methods) included in the wireless communication interface 1433.

[0162] Each of the antennas 1437 includes one or more antenna elements (e.g., multiple antenna elements included in a MIMO antenna) and is used for transmitting and receiving wireless signals via the wireless communication interface 1433. As shown in Fig. 14, the car navigation device 1420 may include multiple antennas 1437. Although Fig. 14 shows an example in which the car navigation device 1420 includes multiple antennas 1437, the car navigation device 1420 may include one antenna 1437.

[0163] Furthermore, the car navigation device 1420 may include an antenna 1437 for each wireless communication method. In this case, the antenna switch 1436 may be omitted from the configuration of the car navigation device 1420.

[0164] The battery 1438 supplies power to each block of the car navigation device 1420 shown in Fig. 14 via a feeder line partially shown by a dashed line in the figure. The battery 1438 also stores power supplied from the vehicle side.

[0165] 14, the communication unit in the device 600 may be realized by the wireless communication interface 1433. At least a part of the functions of the control unit 602 in the device 600 may be realized by the processor 1421.

[0166] The technology of the present disclosure may be realized as an in-vehicle system (or vehicle) 1440 including one or more blocks of a car navigation device 1420, an in-vehicle network 1441, and a vehicle module 1442. The vehicle module 1442 generates vehicle data (e.g., vehicle speed, engine RPM, and failure information) and outputs the generated data to the in-vehicle network 1441.

[0167] Although the preferred embodiments of the present disclosure have been described above with reference to the accompanying drawings, it goes without saying that the present disclosure is not limited to the above examples. A person skilled in the art can obtain various changes or modifications within the scope of the claims, and these changes or modifications naturally belong to the technical scope of the present disclosure.

[0168] For example, multiple functions included in one unit in the above embodiments may be realized by separate devices. Alternatively, multiple functions realized by multiple units in the above embodiments may each be realized by a separate device. Also, one of the above functions may be realized by multiple units. It goes without saying that such configurations are included in the technical scope of the present disclosure.

[0169] In this specification, the steps described in the flowchart include not only processes executed in the above-mentioned chronological order, but also processes executed in parallel or independently without necessarily following the chronological order. It goes without saying that the order of the steps executed in the chronological order can be changed as appropriate.

[0170] Although the present disclosure and advantages have been described in detail above, it should be understood that various modifications, substitutions, and alterations can be made without departing from the spirit and scope of the present disclosure, which is limited by the appended claims. The term "comprises," "comprises," or any variation thereof in the embodiments of the present disclosure means a non-exclusive inclusion, such that a process, method, article, or device that includes a set of elements includes not only the elements, but also includes other elements not expressly listed, or further includes elements inherent in such process, method, article, or device. Also, unless more limited, the phrase "comprises a ..." does not exclude the inclusion of other identical elements in a process, method, article, or device that includes the above elements.

Claims

1. 1. An apparatus in a wireless communication system, the apparatus including a processing circuit, the processing circuit comprising: The method is configured to control a user equipment to transmit a sounding reference signal (SRS) to the base station on a corresponding time-frequency resource according to an SRS configuration notified by the base station; The SRS configuration includes at least an SRS resource configuration for realizing both uplink beam management and channel state information (CSI) acquisition; The SRS allocation indicates a start position of each of a plurality of SRS resources on a time axis and a number of OFDM symbols occupied by each of the plurality of SRS resources; The processing circuitry is further configured to set a comb shift amount of the SRS resource configuration to an integer greater than or equal to 0 and less than a sampling factor; The SRS configuration is configured based on a port number of a group of SRS resources used for CSI acquisition, the port number corresponding to a number of antenna ports of the user equipment, and a frequency hopping scheme in the SRS configuration supports intra-slot frequency hopping and / or inter-slot frequency hopping of the SRS.

2. The device of claim 1 , wherein the SRS configuration is configured based on a number of ports corresponding to a group of SRS resources used for uplink beam management, and the number of ports may be one.

3. 2. The apparatus of claim 1, wherein the sampling factor X indicates a subcarrier gap of X-1 between Resource Elements (REs) occupied by SRS within an OFDM symbol.

4. 1. An apparatus for a base station in a wireless communication system, the apparatus including a processing circuit, the processing circuit comprising: A user equipment is configured to generate a sounding reference signal (SRS) constellation for transmitting an SRS to the base station on a corresponding time-frequency resource; The SRS configuration includes at least an SRS resource configuration for realizing both uplink beam management and channel state information (CSI) acquisition; The SRS allocation indicates a start position of each of a plurality of SRS resources on a time axis and a number of OFDM symbols occupied by each of the plurality of SRS resources; The processing circuitry is further configured to set a comb shift amount of the SRS resource configuration to an integer greater than or equal to 0 and less than a sampling factor; The SRS configuration is configured based on a port number of a group of SRS resources used for CSI acquisition, the port number corresponding to a number of antenna ports of the user equipment, and a frequency hopping scheme in the SRS configuration supports intra-slot frequency hopping and / or inter-slot frequency hopping of the SRS.

5. The device of claim 4 , wherein the SRS configuration is configured based on a number of ports corresponding to a group of SRS resources used for uplink beam management, and the number of ports may be one.

6. 5. The apparatus of claim 4, wherein the sampling factor X indicates a subcarrier gap of X-1 between Resource Elements (REs) occupied by SRS within an OFDM symbol.

7. 1. A method for wireless communication, comprising: generating a sounding reference signal (SRS) constellation for a user equipment to transmit an SRS to a base station on a corresponding time-frequency resource; The SRS configuration includes at least an SRS resource configuration for realizing both uplink beam management and channel state information (CSI) acquisition; The SRS configuration further indicates a start position of each of a plurality of SRS resources on a time axis and a number of OFDM symbols occupied by each of the plurality of SRS resources; The method further includes setting a comb shift amount of the SRS resource configuration to an integer greater than or equal to 0 and less than a sampling factor; The method, wherein the SRS configuration is configured based on a port number of a group of SRS resources used for CSI acquisition, the port number corresponding to a number of antenna ports of the user equipment, and a frequency hopping scheme in the SRS configuration supports intra-slot frequency hopping and / or inter-slot frequency hopping of the SRS.

8. The method according to claim 7 , wherein the SRS configuration is based on a number of ports corresponding to a group of SRS resources used for uplink beam management, and the number of ports may be one.

9. 9. The method of claim 8, wherein the sampling factor X indicates a subcarrier gap of X-1 between Resource Elements (REs) occupied by SRS within an OFDM symbol.

10. 1. A method for wireless communication, comprising: According to a sounding reference signal (SRS) configuration notified by a base station, controlling a user equipment to transmit an SRS to the base station on a corresponding time-frequency resource; The SRS configuration includes at least an SRS resource configuration for realizing both uplink beam management and channel state information (CSI) acquisition; The SRS configuration further indicates a start position of each of a plurality of SRS resources on a time axis and a number of OFDM symbols occupied by each of the plurality of SRS resources; The method further includes setting a comb shift amount of the SRS resource configuration to an integer greater than or equal to 0 and less than a sampling factor; The method, wherein the SRS configuration is configured based on a port number of a group of SRS resources used for CSI acquisition, the port number corresponding to a number of antenna ports of the user equipment, and a frequency hopping scheme in the SRS configuration supports intra-slot frequency hopping and / or inter-slot frequency hopping of the SRS.

11. The method according to claim 10, wherein the SRS configuration is based on a number of ports corresponding to a group of SRS resources used for uplink beam management, and the number of ports may be one.

12. A non-transitory computer-readable storage medium comprising computer-readable instructions for execution by at least one processor, the instructions, when executed by the at least one processor, causing the at least one processor to: Controlling a user equipment to transmit a sounding reference signal (SRS) to the base station on a corresponding time-frequency resource according to an SRS configuration notified by the base station; The SRS configuration includes at least an SRS resource configuration for realizing both uplink beam management and channel state information (CSI) acquisition; The SRS allocation indicates a start position of each of a plurality of SRS resources on a time axis and a number of OFDM symbols occupied by each of the plurality of SRS resources; Executing the comb shift amount of the SRS resource configuration to be set to an integer greater than or equal to 0 and less than a sampling factor; A storage medium, wherein the SRS configuration is configured based on a port number of a group of SRS resources used for CSI acquisition, the port number corresponding to a number of antenna ports of the user equipment, and a frequency hopping scheme in the SRS configuration supports intra-slot frequency hopping and / or inter-slot frequency hopping of the SRS.

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