SRS port mapping method, device and terminal

Abstract

The present application discloses an SRS port mapping method, apparatus and terminal, which belong to the field of communication technology, in which the method includes: a terminal maps M port groups to N OFDM symbols, where M and N are integers equal to or greater than 1, and M is equal to or greater than N, and a target SRS port includes one or more SRS resource ports, and the SRS resource ports are composed of the M port groups.

Description

[Technical field]

[0001] (CROSS REFERENCE TO RELATED APPLICATIONS) This application claims priority to Chinese Patent Application No. 202210045015.4, filed in China on January 14, 2022, the entire contents of which are incorporated herein by reference.

[0002] The present application relates to the field of communication technology, and in particular to an SRS port mapping method, device and terminal. [Background technology]

[0003] In a New Radio (NR) system, a Sounding Reference Signal (SRS) may be used for beam management, codebook-based transmission, non-codebook-based transmission, and antenna switching transmission. A terminal can obtain multiple SRS resource sets through higher layer signaling, and each SRS resource set configuration includes its usage, periodicity characteristics, and other configurations.

[0004] Currently, the number of SRS ports supported by SRS port mapping is limited, for example, the SRS port number is only supported to be 1, 2, and 4. That is, the traditional port mapping method has certain limitations and the port mapping method is not very flexible. Summary of the Invention [Problem to be solved by the invention]

[0005] The embodiments of the present application provide an SRS port mapping method, device and terminal that can solve the problem that the conventional SRS port mapping method lacks flexibility. [Means for solving the problem]

[0006] A first aspect provides an SRS port mapping method, the method comprising: The terminal maps M port groups to N orthogonal frequency division multiplexing OFDM symbols, where M and N are integers greater than or equal to 1, and M is greater than or equal to N, and a target sounding reference signal (SRS) port includes one or more SRS resource ports, and the SRS resource port is composed of the M port groups.

[0007] A second aspect provides an SRS port mapping apparatus, the apparatus comprising: The method includes: a mapping module for mapping M port groups to N orthogonal frequency division multiplexing OFDM symbols, where M and N are integers greater than or equal to 1, and M is greater than or equal to N; a target sounding reference signal (SRS) port includes one or more SRS resource ports, and the SRS resource ports are composed of the M port groups.

[0008] A third aspect provides a terminal, the terminal including a processor, a memory, and a program or instructions stored in the memory and operable to run on the processor, the program or instructions, when executed by the processor, implementing the steps of the SRS port mapping method described in the first aspect.

[0009] A fourth aspect provides a readable storage medium having a program or instructions stored thereon, the program or instructions implementing the steps of the SRS port mapping method described in the first aspect when executed by a processor.

[0010] A fifth aspect provides a chip, the chip including a processor and a communication interface, the communication interface coupled to the processor, the processor running a program or instruction of a network side device and used to realize the steps of the SRS port mapping method described in the first aspect. Effect of the Invention

[0011] In an embodiment of the present application, a terminal maps M port groups to N OFDM symbols, where M and N are integers equal to or greater than 1, and M is equal to or greater than N, and a target SRS port includes one or more SRS resource ports, and the SRS resource ports are composed of the M port groups. Through the above method, the SRS resource ports can be mapped to OFDM symbols, and are not limited by the number of SRS resource ports, and the flexibility of port mapping can be improved, thereby further improving communication performance. [Brief description of the drawings]

[0012] [Figure 1] FIG. 1 is a structural diagram of a network system according to an embodiment of the present application. [Diagram 2] 4 is a flowchart of an SRS port mapping method according to an embodiment of the present application. [Figure 3a] FIG. 2 is a schematic diagram of mapping ports of SRS resources to OFDM symbols according to an embodiment of the present application; [Figure 3b] FIG. 2 is a schematic diagram of mapping ports of SRS resources to OFDM symbols according to an embodiment of the present application; [Figure 3c] FIG. 2 is a schematic diagram of mapping ports of SRS resources to OFDM symbols according to an embodiment of the present application; [Figure 3d] FIG. 2 is a schematic diagram of mapping ports of SRS resources to OFDM symbols according to an embodiment of the present application; [Figure 3e] FIG. 2 is a schematic diagram of mapping ports of SRS resources to OFDM symbols according to an embodiment of the present application; [Figure 3f] FIG. 2 is a schematic diagram of mapping ports of SRS resources to OFDM symbols according to an embodiment of the present application; [Figure 4] 1 is a structural diagram of an SRS port mapping device according to an embodiment of the present application; [Diagram 5] FIG. 2 is a structural diagram of a communication device according to an embodiment of the present application; [Figure 6]FIG. 2 is a structural diagram of a terminal according to an embodiment of the present application; DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0013] The following clearly describes the technical solutions in the embodiments of the present application in conjunction with the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only some of the embodiments of the present application, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present application are all within the scope of protection of the present application.

[0014] The terms "first", "second", etc. in the specification and claims of the present application are intended to distinguish between similar objects and are not intended to describe a particular order or sequence. It is to be understood that the terms used in this way are interchangeable where appropriate, so that the embodiments of the present application may be performed in an order other than that shown or described herein, and that the objects distinguished by "first" and "second" are generally of the same type and do not limit the number of objects, e.g., the first object may be one or more. Note that "and / or" in the specification and claims represents at least one of the objects connected, and the character " / " generally represents an "or" relationship between the related objects. In the present application, "transmission" represents the delivery of a signal, not the narrow sense of signal transmission.

[0015] It should be noted that the techniques described in the embodiments of the present application are not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, but can also be applied to other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA), and other systems. The terms "system" and "network" in the embodiments of the present application are always used interchangeably, and the techniques described may be used in the above-mentioned systems and radio technologies, or in other systems and radio technologies. However, although the following description describes New Radio (NR) systems for illustrative purposes and uses NR terminology in most of the following description, these technologies may also be used in applications other than NR system applications, such as sixth generation (6G) systems. th This may be applied to a 6G (6th Generation) communication system.

[0016] FIG. 1 shows a structural diagram of a wireless communication system to which the embodiment of the present application can be applied. The wireless communication system includes a terminal 11 and a network side device 12. Here, the terminal 11 may be called a terminal device or a user terminal (User Equipment, UE), and the terminal 11 may be a terminal side device such as a mobile phone, a tablet computer, a laptop computer (or called a notebook computer), a personal digital assistant (PDA), a palmtop computer, a netbook, an ultra-mobile personal computer (UMPC), a mobile Internet device (MID), a wearable device, or a vehicle user equipment (VUE), a pedestrian user equipment (PUE), etc., and the wearable device includes a bracelet, an earphone, glasses, etc. It should be noted that the embodiment of the present application does not limit the specific type of the terminal 11.The network side equipment 12 may be a base station or a core network, where the base station may be called a Node B, an Evolved Node B, an access point, a Base Transceiver Station (BTS), a radio base station, a radio transceiver, a Basic Service Set (BSS), an Extended Service Set (ESS), a B node, an Evolved Node B (eNB), a home B node, a home Evolved B node, a Wireless Local Area Network (WLAN) access point, a WiFi node, a Transmitting Receiving Point (TRP), or any other suitable term in the art, and as long as the same technical effect is achieved, the base station is not limited to a specific technical term, and it should be explained that in the embodiments of this application, only a base station in an NR system is taken as an example, but the specific type of the base station is not limited.

[0017] Below, the SRS port mapping method according to the embodiment of the present application will be described in detail through specific embodiments and its application scenarios in conjunction with the drawings.

[0018] Referring to FIG. 2, FIG. 2 is a flowchart of an SRS port mapping method according to an embodiment of the present application, which includes:

[0019] Step 201: The terminal maps M port groups to N Orthogonal Frequency Division Multiplexing (OFDM) symbols, where M and N are integers greater than or equal to 1, and M is greater than or equal to N, and a target SRS port includes one or more SRS resource ports, and the SRS resource ports are composed of the M port groups.

[0020] Specifically, the port of the target SRS includes one or more SRS resource ports, and for each SRS resource port, the SRS resource ports are grouped to obtain M port groups, and each port group is respectively mapped to N OFDM symbols. The number of SRS resource ports may be 1, 2, 4, 8, etc.

[0021] When a port of a target SRS includes a port of one SRS resource, the target SRS may be understood as this one SRS resource.

[0022] In this embodiment, the terminal maps M port groups to N OFDM symbols, where M and N are integers equal to or greater than 1, and M is equal to or greater than N, and the target SRS port includes one or more SRS resource ports, and the SRS resource ports are composed of the M port groups. Through the above method, the SRS resource ports can be mapped to OFDM symbols, and are not limited by the number of SRS resource ports, and the flexibility of port mapping can be improved, thereby further improving communication performance.

[0023] In the above, the time domain locations of the N OFDM symbols are determined in at least one of the following manners:

[0024] (1) It is agreed upon by default between the network side device and the terminal. For example, the time domain positions of the N OFDM symbols are agreed upon by default as N consecutive time domain positions between the network side device and the terminal.

[0025] (2) It is configured or indicated by a network side device, for example, the N OFDM symbols may be consecutive or non-consecutive OFDM symbols.

[0026] When configured or indicated by a network side device, it may be configured by Radio Resource Control (RRC) signaling and / or indicated by Medium Access Control Control Element (MAC CE) signaling and / or indicated by Downlink Control Information (DCI) signaling. For example, 1. Directly configure indexes of N OFDM symbols through RRC signaling, or configure a plurality of groups with N OFDM symbols as elements through RRC signaling, and indicate group indexes; 2. A number of groups, each of which has N OFDM symbols as an element, are configured by RRC signaling, and the index of each group is indicated by MAC CE or DCI signaling.

[0027] In one embodiment of the present application, at least one of the value of M, the value of N, the number of ports corresponding to each of the M port groups, the port numbers corresponding to each of the M port groups, the number of ports mapped to each OFDM symbol, and the port numbers mapped to each OFDM symbol is (1) It is agreed by default between the network side equipment and the terminal; (2) It is determined by one of the following methods: being configured or indicated by a network side device (which may be configured by RRC signaling, and / or indicated by MAC CE signaling, and / or indicated by DCI signaling).

[0028] The following description will be given taking an example where the SRS resource has 8 ports (hereinafter, abbreviated as 8 ports).

[0029] Example 1: M=2 port groups are configured by RRC signaling, where port group 1 includes 4 ports, with port numbers being {1000, 1001, 1002, 1003}, and port group 2 also includes 4 ports, with port numbers being {1004, 1005, 1006, 1007}. At this time, according to the default agreement between the network side device and the terminal, the two port groups are mapped to N=2 OFDM symbols. Optionally, the port numbers in the port groups, or the value of M, or the port numbers may be updated by MAC CE or DCI signaling.

[0030] Example 2: N=2 OFDM symbols are configured by RRC signaling, and at this time, according to the default agreement between the network side equipment and the terminal, M=2 port groups are mapped to the two OFDM symbols, where port group 1 includes four ports, and the port numbers are {1000, 1001, 1002, 1003} respectively, and port group 2 also includes four ports, and the port numbers are {1004, 1005, 1006, 1007} ​​respectively.

[0031] In one embodiment of the present application, at least two of the value of M, the value of N, the number of ports corresponding to each of the M port groups, the port numbers corresponding to each of the M port groups, the number of ports mapped to each OFDM symbol, the port numbers mapped to each OFDM symbol, the comb structure of the target SRS, the number of repetitions of the target SRS, and the starting symbol position of the target SRS have an associated relationship, that is, one of the above terms can be derived from at least one of the others, and a specific example is as follows:

[0032] (1) From the value of M, the value of N and / or the number of ports corresponding to each of the M port groups can be derived, from the value of N, the value of M and / or the number of ports corresponding to each of the M port groups can be derived, and from the values ​​of M and N, the number of ports mapped to each OFDM symbol can be derived.

[0033] (2) The value of N is related to the number of SRS repetitions R. For example, if the SRS resource has 8 ports, When R=1, the value of N may be 2 or 3 or 4; When R=2, the value of N may be 2 or 3 or 4; When R=4, the value of N may be 2 or 3; (3) The value of N is related to the starting symbol position of the target SRS and needs to ensure that the N OFDM symbols are in the same slot, i.e., the N OFDM symbols are in the same slot.

[0034] This embodiment takes 8 ports as an example to show a specific embodiment of grouping the ports of one SRS resource and then mapping each port group to N OFDM symbols. As shown in Table 1, Table 1 shows the range of values ​​of the starting symbol position l0 of the target SRS when the number of SRS repetitions R and the number of OFDM symbols N take different values.

[0035] [Table 1]

[0036] (4) The number of ports in the port group on each OFDM symbol may be the same or different. Take 8 ports as an example. When M=N=2, the number of ports mapped to each OFDM symbol is 4. For M=N=3, the number of ports mapped to the OFDM symbol may be 4, 2, 2, or 2, 4, 2, or 2, 2, 4, respectively; When M=N=4, the numbers of ports mapped to the OFDM symbols may be 2, 2, 2, and 2, respectively.

[0037] When M=4 and N=2, the numbers of ports mapped to an OFDM symbol may be (2+2) and (2+2), respectively.

[0038] When M=4 and N=3, the number of ports mapped to an OFDM symbol may be (2+2), 2, 2, or 2, (2+2), 2, or 2, 2, or (2+2), respectively.

[0039] Here, "(2+2)" indicates that two port groups (each port group includes two ports) are mapped to the same OFDM symbol.

[0040] Preferably, the number of ports corresponding to each of the M port groups is the same.

[0041] (5) The values ​​of M, N, the number of ports corresponding to each of the M port groups, and the port numbers corresponding to each of the M port groups may be related to the comb structure (i.e., comb2 / 4 / 8) of the target SRS and / or the number of repetitions of the target SRS.

[0042] This embodiment takes 8 ports as an example to illustrate a specific implementation method for grouping the ports of one SRS resource and then mapping each port group to N OFDM symbols respectively.

[0043] Case 1: The comb structure of the target SRS is Comb 2. The eight ports are divided into two port groups, with port group 1 being port{1000, 1002, 1004, 1006} and port group 2 being port{1001, 1003, 1005, 1007}.

[0044] The repetition count of the target SRS is set as R=1, and the ports of port group 1 are mapped to one OFDM symbol, and the ports of group 2 are mapped to another OFDM symbol, that is, N=2.

[0045] As shown in FIG. 3a, port group 1 and port group 2 are mapped to two adjacent OFDM symbols.

[0046] As shown in Figure 3b, port group 1 and port group 2 are mapped to two non-adjacent OFDM symbols, and the OFDM symbol positions corresponding to the two port groups may be configured by RRC signaling, or may be indicated by MAC CE or DCI signaling, or the mapping of the OFDM symbols may be performed according to a rule agreed by the network side and the terminal side by default.

[0047] Case 2: The comb structure of the target SRS is Comb 2. The eight ports are divided into two port groups, with port group 1 being port{1000, 1002, 1004, 1006} and port group 2 being port{1001, 1003, 1005, 1007}.

[0048] The repetition count of the target SRS is set as R=2, and the ports of port group 1 are mapped to two OFDM symbols, and the ports of port group 2 are mapped to another two OFDM symbols, that is, N=4.

[0049] As shown in Figure 3c, port group 1 is mapped to the 8th and 9th symbols and has two repetitions of the target SRS in symbols 8 and 9. Port group 2 is mapped to the 10th and 11th symbols and has two repetitions of the target SRS in symbols 10 and 11.

[0050] As shown in Figure 3d, port group 1 is mapped to the 8th and 10th symbols and is two repetitions of the SRS at symbols 8 and 10. Port group 2 is mapped to the 9th and 11th symbols and is two repetitions of the target SRS at symbols 9 and 11.

[0051] Case 3: The comb structure of the target SRS is Comb 4. The eight ports are divided into four port groups, with port group 1 being port{1000, 1004}, port group 2 being port{1001, 1005}, port group 3 being port{1002, 1006}, and port group 4 being port{1003, 1007}.

[0052] Set the number of repetitions of the target SRS R=1; As shown in FIG. 3e, the ports of port group 1, port group 2, port group 3, and port group 4 are respectively mapped to one OFDM symbol, that is, N=4.

[0053] As shown in FIG. 3f, the ports of port group 1 and port group 2 are mapped to one OFDM symbol, and the ports of port group 3 and port group 4 are mapped to another OFDM symbol, that is, N=2.

[0054] In the above, the M port groups are The M port groups correspond to the same cyclic shift; and The M port groups correspond to the same frequency domain mapping position; and The M port groups correspond to the same antenna virtualization; and The M port groups correspond to the same precoding; The M port groups correspond to the same analog beamforming; and the M port groups corresponding to the same launch power; and not allowing frequency hopping among the M port groups.

[0055] In one embodiment of the present application, a first port group is any one of the M port groups, and the first port group performs port mapping according to a mapping rule corresponding to the number of ports in the first port group.

[0056] For example, in the case of 8 ports, when M=2 and each port group includes 4 ports, the ports on each OFDM symbol are mapped according to the 4-port mapping rule in the relevant protocol, that is, the ports mapped to one OFDM symbol are {1000, 1001, 1002, 1003}, and the ports mapped to another OFDM symbol are {1004, 1005, 1006, 1007}.

[0057] In one embodiment of the present application, the ports of the target SRS include ports of a plurality of SRS resources, the plurality of SRS resources comprising: an SRS resource in an SRS resource set; SRS resources in a plurality of SRS resource sets; and an SRS resource determined based on the same resource list.

[0058] Furthermore, the plurality of SRS resources may be indicated by an SRS resource indicator (SRI).

[0059] In one embodiment of the present application, the port number of the target SRS is the sum of the port numbers of all SRS resources in the target SRS resource set; Or, The number of ports of the target SRS is the sum of the number of ports of some SRS resources in the target SRS resource set; Here, the target SRS resource set includes one SRS resource set or multiple SRS resource sets.

[0060] In the above, when the target SRS resource set includes one SRS resource set, the portion of the SRS resources is configured or indicated by a network side device, for example, a resource identifier (ID) of each SRS resource among the portion of the SRS resources is configured or indicated by the network side device.

[0061] Furthermore, when the target SRS resource set includes one SRS resource set, the SRS resource identifiers of the SRS resources among the partial SRS resources are adjacent to each other. The number of the partial SRS resources may be configured or indicated by the network side device, or may be agreed upon by the network side device and the terminal by default.

[0062] Furthermore, a first SRS resource of the part of SRS resources is The contract is concluded by default between the network side device and the terminal; and / or configured or instructed by a network side device.

[0063] The first SRS resource is used to determine a starting SRS resource among a plurality of SRS resources whose SRS resource identifiers are adjacent.

[0064] In one embodiment of the present application, when the target SRS resource set includes one SRS resource set, the association relationship between each SRS resource of the part of SRS resources is: The association relationship is configured or indicated by a network side device; The association relationship satisfies at least one of the following: the SRS resources among the portion of SRS resources have the same spatial relationship and / or quasi-colocation relationship.

[0065] In one embodiment of the present application, when the target SRS resource set includes a plurality of SRS resource sets, the portion of SRS resources includes the plurality of SRS resources, and the plurality of SRS resources include: Each SRS resource of the plurality of SRS resources is an SRS resource in each SRS resource set, respectively, and each SRS resource has the same order in each SRS resource set.

[0066] For example, the target SRS resource set includes a first SRS resource set and a second SRS resource set, the multiple SRS resources include a first SRS resource and a second SRS resource, the first SRS resource is from the first SRS resource set and the second SRS resource is from the second SRS resource set, and the order (e.g., ID values) of the first SRS resources in the first SRS resource set is the same as the order of the second SRS resources in the second SRS resource set.

[0067] In one embodiment of the present application, when the target SRS resource set includes multiple SRS resource sets, the association relationship between each SRS resource set of the multiple SRS resource sets is as follows: The association relationship is configured or indicated by a network side device; The association relationship is a relationship in which SRS resource set identifiers of each SRS resource set among the plurality of SRS resource sets are adjacent to each other; The association relationship is a relationship in which the SRS resources in the plurality of SRS resource sets have the same spatial relationship and / or quasi-colocation relationship; The association relationship satisfies at least one of the following: the plurality of SRS resource sets belong to the same resource set list, and the resource set list is configured by a network side device via RRC.

[0068] In one embodiment of the present application, the association rules between the plurality of SRS resources and the port numbers of the target SRS satisfy at least one of the following:

[0069] (1) The SRS resources are associated in order according to the identifier order of the SRS resources among the plurality of SRS resources.

[0070] Taking 8port as an example, the network side device and the terminal agree by default to make SRS resource 1 correspond to port numbers {1000, 1001, 1002, 1003}, and SRS resource 2 correspond to port numbers {1004, 1005, 1006, 1007}.

[0071] (2) The plurality of SRS resources are associated in order according to the identifier order of the SRS resource set to which they belong.

[0072] (3) The SRS resources are associated with each other according to an order in a list of constituent resources of the SRS resource among the plurality of SRS resources.

[0073] (4) The SRS resources are associated according to a port number configured for each SRS resource by the network side device. Taking 8port as an example, the SRS resource 1 is associated with port numbers {1000, 1002, 1004, 1006} and the SRS resource 2 is associated with port numbers {1001, 1003, 1005, 1007} ​​by being configured or instructed by the network side device.

[0074] In one embodiment of the present application, the target information of each SRS resource among the plurality of SRS resources is the same, and the target information includes: Cyclic shift and Comb structure; a frequency domain mapping position; time domain symbol position; The number of repetitions, and a transmission period.

[0075] In one embodiment of the present application, the time domain symbol position corresponding to each SRS resource among the plurality of SRS resources is: The time domain symbol positions corresponding to each SRS resource are the same; and The time domain symbol positions corresponding to each SRS resource are adjacent to each other; and the time domain symbol positions corresponding to each SRS resource are within the same time window, where the time window is configured by the network side device or is agreed upon by the network side device and the terminal as a default. For example, the time window is agreed upon as one slot by default.

[0076] The SRS port mapping method in this application can solve the port mapping problem of the SRS when the number of ports of the SRS is greater than 4. For example, when the number of ports of the SRS is 8, the orthogonality between each port is guaranteed by solving the mapping problem of each port.

[0077] It should be explained that in the SRS port mapping method according to the embodiment of the present application, the execution body may be an SRS port mapping device, or a control module for executing the SRS port mapping method in the SRS port mapping device.

[0078] In the following embodiments, the SRS port mapping device according to the embodiments of the present application will be described by taking the SRS port mapping device performing the SRS port mapping method as an example.

[0079] Referring to FIG. 4, FIG. 4 is a structural diagram of an SRS port mapping device according to an embodiment of the present application. The SRS port mapping device 400 includes: The present invention includes a mapping module 401 for mapping M port groups to N orthogonal frequency division multiplexing OFDM symbols, where M and N are integers greater than or equal to 1, and M is greater than or equal to N, and a target sounding reference signal (SRS) port includes one or more SRS resource ports, and the SRS resource ports are composed of the M port groups.

[0080] Optionally, the time domain positions of the N OFDM symbols are The contract is concluded by default between the network side device and the terminal; The determination is made by at least one of the following methods: being configured or being instructed by the network side device.

[0081] Alternatively, the time domain positions of the N OFDM symbols are defaulted to be N consecutive time domain positions by the network side device and the terminal.

[0082] Optionally, at least one of the value of M, the value of N, the number of ports corresponding to each of the M port groups, the port numbers corresponding to each of the M port groups, the number of ports mapped to each OFDM symbol, and the port numbers mapped to each OFDM symbol is The contract is concluded by default between the network side device and the terminal; The determination is made by one of the following methods: being configured by the network side device or being instructed by the network side device.

[0083] Alternatively, at least two of the value of M, the value of N, the number of ports corresponding to each of the M port groups, the port numbers corresponding to each of the M port groups, the number of ports mapped to each OFDM symbol, the port numbers mapped to each OFDM symbol, the comb structure of the target SRS, the number of repetitions of the target SRS, and the starting symbol position of the target SRS have an associated relationship.

[0084] Optionally, the N OFDM symbols are in the same slot.

[0085] Optionally, the number of ports corresponding to each of the M port groups is the same.

[0086] Optionally, the M port groups are The M port groups correspond to the same cyclic shift; and The M port groups correspond to the same frequency domain mapping position; and The M port groups correspond to the same antenna virtualization; and The M port groups correspond to the same precoding; The M port groups correspond to the same analog beamforming; and the M port groups corresponding to the same launch power; and not allowing frequency hopping among the M port groups.

[0087] Optionally, the first port group is any one of the M port groups, and the first port group performs port mapping according to a mapping rule corresponding to the number of ports in the first port group.

[0088] Optionally, the ports of the target SRS include ports of a plurality of SRS resources, the plurality of SRS resources being: an SRS resource in an SRS resource set; SRS resources in a plurality of SRS resource sets; and an SRS resource determined based on the same resource list.

[0089] Optionally, the plurality of SRS resources are indicated by an SRS resource indication SRI.

[0090] Optionally, the port number of the target SRS is a sum of the port numbers of all SRS resources in the target SRS resource set; Or, The number of ports of the target SRS is the sum of the number of ports of some SRS resources in the target SRS resource set; Here, the target SRS resource set includes one SRS resource set or multiple SRS resource sets.

[0091] Optionally, when the target SRS resource set includes one SRS resource set, the part of the SRS resources is configured or indicated by a network side device.

[0092] Optionally, when the target SRS resource set includes one SRS resource set, the SRS resource identifiers of each SRS resource among the portion of SRS resources are adjacent.

[0093] Optionally, a first SRS resource of the portion of SRS resources includes: The contract is concluded by default between the network side device and the terminal; and / or configured or instructed by a network side device.

[0094] Optionally, when the target SRS resource set includes one SRS resource set, the association relationship between each SRS resource of the part of SRS resources is: The association relationship is configured or indicated by a network side device; The association relationship satisfies at least one of the following: the SRS resources among the portion of SRS resources have the same spatial relationship and / or quasi-colocation relationship.

[0095] Optionally, when the target SRS resource set includes a plurality of SRS resource sets, the portion of SRS resources includes the plurality of SRS resources, and the plurality of SRS resources include: Each SRS resource of the plurality of SRS resources is an SRS resource in each SRS resource set, respectively, and each SRS resource has the same order in each SRS resource set.

[0096] Optionally, when the target SRS resource set includes a plurality of SRS resource sets, the association relationship between each SRS resource set of the plurality of SRS resource sets is: The association relationship is configured or indicated by a network side device; The association relationship is a relationship in which SRS resource set identifiers of each SRS resource set among the plurality of SRS resource sets are adjacent to each other; The association relationship is a relationship in which the SRS resources in the plurality of SRS resource sets have the same spatial relationship and / or quasi-colocation relationship; The association relationship satisfies at least one of the following: that the multiple SRS resource sets belong to the same resource set list.

[0097] Optionally, the association rule between the plurality of SRS resources and the port number of the target SRS port may include: The SRS resources are associated in order according to an identifier order of the SRS resources among the plurality of SRS resources; The plurality of SRS resources are associated in order according to the identifier order of the SRS resource set to which the plurality of SRS resources belong; The SRS resources are associated with each other according to an order in a list of constituent resources of the SRS resources among the plurality of SRS resources; and b) the SRS resources are associated with each other according to a port number configured for each SRS resource by a network side device.

[0098] Optionally, the target information of each SRS resource among the plurality of SRS resources is the same, and the target information comprises: Cyclic shift and Comb structure; a frequency domain mapping position; time domain symbol position; The number of repetitions, and a transmission period.

[0099] Optionally, a time domain symbol position corresponding to each SRS resource among the plurality of SRS resources is The time domain symbol positions corresponding to each SRS resource are the same; and The time domain symbol positions corresponding to each SRS resource are adjacent to each other; and the time domain symbol positions corresponding to each SRS resource are within the same time window.

[0100] The SRS port mapping device 400 in the embodiment of the present application may be a device, or may be a component in a terminal, an integrated circuit, or a chip.

[0101] The SRS port mapping device 400 in the embodiment of the present application may be a device having an operating system, which may be an Android operating system, an ios operating system, or other possible operating systems, and the embodiment of the present application is not specifically limited.

[0102] The SRS port mapping device 400 according to the embodiment of the present application can realize each process realized by the embodiment of the method of FIG. 2 and achieve the same technical effects, and will not be described further here to avoid repetition.

[0103] Optionally, as shown in FIG. 5, an embodiment of the present application further provides a communication device 50, including a processor 51, a memory 52, and a program or instruction stored in the memory 52 and capable of running on the processor 51, for example, when the communication device 50 is a terminal, when the program or instruction is executed by the processor 51, each process of the embodiment of the SRS port mapping method shown in FIG. 2 above can be realized, and the same technical effect can be achieved.

[0104] FIG. 6 is a schematic diagram of the hardware structure for implementing a terminal in the embodiment of the present application.

[0105] The terminal 1000 includes components such as, but not limited to, a radio frequency unit 1001, a network module 1002, an audio output unit 1003, an input unit 1004, a sensor 1005, a display unit 1006, a user input unit 1007, an interface unit 1008, a memory 1009, and a processor 1010.

[0106] As can be understood by those skilled in the art, the terminal 1000 may further include a power source (e.g., a battery) for powering each component, and the power source may be logically connected to the processor 1010 by a power management system, so that the power management system can realize functions such as charge / discharge management and power consumption management. The terminal structure shown in Figure 6 does not constitute a limitation on the terminal, and the terminal may include more or less components than the number of components shown, or a combination of some components, or a different arrangement of components, which will not be further described here.

[0107] It should be understood that in the embodiment of the present application, the input unit 1004 may include a graphics processor (Graphics Processing Unit, GPU) 10041 and a microphone 10042, and the graphics processor 10041 processes image data of still or video images obtained by an image capture device (e.g., a camera) in a video capture mode or an image capture mode. The display unit 1006 may include a display panel 10061, and the display panel 10061 may be configured in the form of a liquid crystal display, an organic light emitting diode, etc. The user input unit 1007 includes a touch panel 10071 and other input devices 10072. The touch panel 10071 is also called a touch screen. The touch panel 10071 may include two parts: a touch detection device and a touch controller. The other input devices 10072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control buttons, switch buttons, etc.), a trackball, a mouse, and an operation lever, which will not be described further herein.

[0108] In the embodiment of the present application, the radio frequency unit 1001 receives downlink data from the network side device, and then causes the processor 1010 to process the data, and transmits uplink data to the base station. In general, the radio frequency unit 1001 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, etc.

[0109] The memory 1009 may be used to store software programs or instructions and various data. The memory 1009 may mainly include a program or instruction storage area and a data storage area, where the program or instruction storage area can store an operating system, an application program or instruction required for at least one function (e.g., a sound playback function, an image playback function, etc.), etc. The memory 1009 may include a high-speed random access memory or a non-volatile memory, where the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. For example, the memory 1009 may be at least one magnetic disk memory device, a flash memory device, or other non-volatile solid-state memory device.

[0110] The processor 1010 may include one or more processing units. Optionally, the processor 1010 may integrate an application processor and a modem processor, where the application processor mainly processes an operating system, a user interface, and application programs or instructions, and the modem processor mainly processes wireless communication, such as a baseband processor. As can be understood, the modem processor does not have to be integrated into the processor 1010.

[0111] Here, the processor 1010 is used to map M port groups to N orthogonal frequency division multiplexing OFDM symbols, where M and N are integers greater than or equal to 1, and M is greater than or equal to N, and the target sounding reference signal SRS port includes one or more SRS resource ports, and the SRS resource ports are composed of the M port groups.

[0112] Furthermore, the time domain positions of the N OFDM symbols are The contract is concluded by default between the network side device and the terminal; The determination is made by at least one of the following methods: being configured or being instructed by the network side device.

[0113] Furthermore, the time domain positions of the N OFDM symbols are defaulted to be N consecutive time domain positions by the network side device and the terminal.

[0114] Furthermore, at least one of the value of M, the value of N, the number of ports corresponding to each of the M port groups, the port numbers corresponding to each of the M port groups, the number of ports mapped to each OFDM symbol, and the port numbers mapped to each OFDM symbol is The contract is concluded by default between the network side device and the terminal; The determination is made by one of the following methods: being configured by the network side device or being instructed by the network side device.

[0115] Furthermore, there is an associated relationship between at least two of the value of M, the value of N, the number of ports corresponding to each of the M port groups, the port numbers corresponding to each of the M port groups, the number of ports mapped to each OFDM symbol, the port numbers mapped to each OFDM symbol, the comb structure of the target SRS, the number of repetitions of the target SRS, and the starting symbol position of the target SRS.

[0116] Furthermore, the N OFDM symbols are in the same slot.

[0117] Furthermore, the number of ports corresponding to each of the M port groups is the same.

[0118] Furthermore, the M port groups are The M port groups correspond to the same cyclic shift; and The M port groups correspond to the same frequency domain mapping position; and The M port groups correspond to the same antenna virtualization; and The M port groups correspond to the same precoding; The M port groups correspond to the same analog beamforming; and the M port groups corresponding to the same launch power; and not allowing frequency hopping among the M port groups.

[0119] Furthermore, a first port group is any one of the M port groups, and the first port group performs port mapping according to a mapping rule corresponding to the number of ports in the first port group.

[0120] Further, the ports of the target SRS include ports of a plurality of SRS resources, the plurality of SRS resources being: an SRS resource in an SRS resource set; SRS resources in a plurality of SRS resource sets; and an SRS resource determined based on the same resource list.

[0121] Furthermore, the plurality of SRS resources are indicated by an SRS resource indication SRI.

[0122] Furthermore, the number of ports of the target SRS is the sum of the number of ports of all SRS resources in the target SRS resource set; Or, The number of ports of the target SRS is the sum of the number of ports of some SRS resources in the target SRS resource set; Here, the target SRS resource set includes one SRS resource set or multiple SRS resource sets.

[0123] Furthermore, when the target SRS resource set includes one SRS resource set, the part of the SRS resources is configured or indicated by a network side device.

[0124] Furthermore, when the target SRS resource set includes one SRS resource set, the SRS resource identifiers of each SRS resource among the portion of SRS resources are adjacent to each other.

[0125] Furthermore, a first SRS resource of the part of SRS resources is The contract is concluded by default between the network side device and the terminal; and / or configured or instructed by a network side device.

[0126] Furthermore, when the target SRS resource set includes one SRS resource set, the association relationship between each SRS resource among the part of SRS resources is: The association relationship is configured or indicated by a network side device; The association relationship satisfies at least one of the following: the SRS resources among the portion of SRS resources have the same spatial relationship and / or quasi-colocation relationship.

[0127] Furthermore, when the target SRS resource set includes a plurality of SRS resource sets, the portion of SRS resources includes the plurality of SRS resources, and the plurality of SRS resources include: Each SRS resource of the plurality of SRS resources is an SRS resource in each SRS resource set, respectively, and each SRS resource has the same order in each SRS resource set.

[0128] Furthermore, when the target SRS resource set includes a plurality of SRS resource sets, the association relationship between each SRS resource set among the plurality of SRS resource sets is as follows: The association relationship is configured or indicated by a network side device; The association relationship is a relationship in which SRS resource set identifiers of each SRS resource set among the plurality of SRS resource sets are adjacent to each other; The association relationship is a relationship in which the SRS resources in the plurality of SRS resource sets have the same spatial relationship and / or quasi-colocation relationship; The association relationship satisfies at least one of the following: that the multiple SRS resource sets belong to the same resource set list.

[0129] Furthermore, the correspondence rule between the plurality of SRS resources and the port number of the target SRS is: The SRS resources are associated in order according to an identifier order of the SRS resources among the plurality of SRS resources; The plurality of SRS resources are associated in order according to the identifier order of the SRS resource set to which the plurality of SRS resources belong; The SRS resources are associated with each other according to an order in a list of constituent resources of the SRS resources among the plurality of SRS resources; and b) the SRS resources are associated with each other according to a port number configured for each SRS resource by a network side device.

[0130] Furthermore, the target information of each SRS resource among the plurality of SRS resources is the same, and the target information is Cyclic shift and Comb structure; a frequency domain mapping position; time domain symbol position; The number of repetitions, and a transmission period.

[0131] Furthermore, the time domain symbol position corresponding to each SRS resource among the plurality of SRS resources is The time domain symbol positions corresponding to each SRS resource are the same; and The time domain symbol positions corresponding to each SRS resource are adjacent to each other; and the time domain symbol positions corresponding to each SRS resource are within the same time window.

[0132] The terminal 1000 according to the above embodiment can implement each process implemented by the embodiment of the method in FIG. 2 and achieve the same technical effects, and will not be further described here to avoid repetition.

[0133] An embodiment of the present application further provides a readable storage medium, in which a program or instruction is stored, and when the program or instruction is executed by a processor, each process of the embodiment of the method shown in FIG. 2 can be realized and the same technical effect can be achieved, and in order to avoid repetition of description, no further description will be given here.

[0134] Here, the processor is the processor in the terminal or the network side device described in the above embodiment. The readable storage medium includes a computer readable storage medium, such as a computer read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0135] An embodiment of the present application further provides a chip, the chip including a processor and a communication interface, the communication interface being coupled to the processor, the processor being used to run a program or instruction of a network side device to realize each process of the embodiment of the method of FIG. 2 above, and can achieve the same technical effect, and in order to avoid repetition of description, no further description will be given here.

[0136] It should be understood that the chips referred to in the embodiments of the present application may be referred to as system level chips, system chips, chip systems, or systems on chips.

[0137] It should be explained that in this specification, the terms "comprise", "include", or any other variants thereof are intended to cover the non-exclusive "comprise", whereby a process, method, article, or apparatus that includes a set of elements includes not only those elements, but also other elements not expressly listed or inherent to such process, method, article, or apparatus. In the absence of further limitations, an element limited by the phrase "comprises a" does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes this element. It should be pointed out that the scope of the method and apparatus in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may include performing functions in an essentially simultaneous manner or in reverse order based on the functions involved, for example, the described method can be performed in a different order than described, and various steps can be added, omitted, or combined. Also, features described with reference to some examples can be combined in other examples.

[0138] From the above description of the embodiments, it is clear to those skilled in the art that the methods of the above embodiments can be realized in the form of software and a necessary general-purpose hardware platform. Of course, they can also be realized in hardware, but in many cases the former is a more preferred embodiment. In light of this understanding, the technical proposal of the present application may be substantially embodied in the form of a software product, or a portion of the contribution to the prior art may be embodied in the form of a software product. This computer software product is stored in a storage medium (e.g., ROM / RAM, magnetic disk, optical disk) and includes some instructions for causing a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network, etc.) to execute the methods described in each embodiment of the present application.

[0139] The above describes the embodiments of the present application in conjunction with the drawings, but the present application is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not limiting. Those skilled in the art can take the suggestions of this application and make many forms without departing from the spirit and scope of the claims of this application, all of which belong to the protection scope of this application.

Claims

1. 1. A method for SRS port mapping, comprising:

1. An SRS port mapping method, comprising: a terminal mapping M port groups to N orthogonal frequency division multiplexing OFDM symbols, where M and N are integers equal to or greater than 1, and M is equal to or greater than N, a target sounding reference signal (SRS) port includes one or more SRS resource ports, and the SRS resource ports are composed of the M port groups.

2. The time domain positions of the N OFDM symbols are The contract is concluded by default between the network side device and the terminal; The method of claim 1 , wherein the determination is at least one of: being configured or being instructed by a network side device.

3. The method of claim 2 , wherein the time domain positions of the N OFDM symbols are defaulted to be N consecutive time domain positions by a network side device and a terminal.

4. At least one of the value of M, the value of N, the number of ports corresponding to each of the M port groups, the port numbers corresponding to each of the M port groups, the number of ports mapped to each OFDM symbol, and the port numbers mapped to each OFDM symbol is The contract is concluded by default between the network side device and the terminal; The method of claim 1 , wherein the determination is made in one of the following ways: configured or instructed by a network side device.

5. 2. The method of claim 1 , wherein at least two of the value of M, the value of N, the number of ports corresponding to each of the M port groups, the port number corresponding to each of the M port groups, the number of ports mapped to each OFDM symbol, the port number mapped to each OFDM symbol, the comb structure of the target SRS, the number of repetitions of the target SRS, and the starting symbol position of the target SRS have an associated relationship.

6. The method of claim 1 , wherein the N OFDM symbols are in the same slot.

7. The method of claim 1 , wherein the number of ports corresponding to each of the M port groups is the same.

8. The M port groups are The M port groups correspond to the same cyclic shift; and The M port groups correspond to the same frequency domain mapping position; and the M port groups correspond to the same antenna virtualization; and The M port groups correspond to the same precoding; and The M port groups correspond to the same analog beamforming; and the M port groups correspond to the same launch power; and and not allowing frequency hopping among the M port groups.

9. 2. The method of claim 1, wherein a first port group is any one of the M port groups, and the first port group performs port mapping according to a mapping rule corresponding to a number of ports in the first port group.

10. The port of the target SRS includes a port of a plurality of SRS resources, and the plurality of SRS resources include: SRS resources in one SRS resource set; SRS resources in a plurality of SRS resource sets; and an SRS resource determined based on the same resource list.

11. The method of claim 10 , wherein the plurality of SRS resources are indicated by an SRS resource indication SRI.

12. The number of ports of the target SRS is the sum of the number of ports of all SRS resources in the target SRS resource set; Or, The number of ports of the target SRS is the sum of the number of ports of some SRS resources in the target SRS resource set, The method of claim 1 , wherein the target SRS resource set comprises one SRS resource set or multiple SRS resource sets.

13. The method of claim 12 , wherein when the target SRS resource set includes one SRS resource set, the part of the SRS resources is configured or indicated by a network side device.

14. The method of claim 12 , wherein when the target SRS resource set includes one SRS resource set, SRS resource identifiers of each SRS resource in the portion of SRS resources are adjacent.

15. A first SRS resource among the part of SRS resources is The contract is concluded by default between the network side device and the terminal; The method of claim 14 , wherein the method is determined by at least one of: being configured or instructed by a network side device.

16. When the target SRS resource set includes one SRS resource set, the association relationship between each SRS resource among the part of SRS resources is: The association relationship is configured or indicated by a network side device; The method of claim 12 , wherein the associated relationship satisfies at least one of: a relationship in which each SRS resource among the portion of SRS resources has the same spatial relationship and / or a quasi-co-location relationship.

17. When the target SRS resource set includes a plurality of SRS resource sets, the portion of SRS resources includes the plurality of SRS resources, and the plurality of SRS resources include: The method of claim 12 , wherein each SRS resource of the plurality of SRS resources is an SRS resource in a respective SRS resource set, and each SRS resource has the same order in each SRS resource set.

18. When the target SRS resource set includes a plurality of SRS resource sets, the association relationship between each SRS resource set among the plurality of SRS resource sets is as follows: The association relationship is configured or indicated by a network side device; The association relationship is a relationship in which SRS resource set identifiers of each SRS resource set among the plurality of SRS resource sets are adjacent to each other; the associated relationship being a relationship in which the SRS resources in the plurality of SRS resource sets have the same spatial relationship and / or quasi-co-location relationship; The method of claim 12 , wherein the associated relationship satisfies at least one of the following: that the multiple SRS resource sets belong to the same resource set list.

19. The plurality of SRS resources include: The SRS resources are associated in order according to an identifier order of the SRS resources among the plurality of SRS resources; The plurality of SRS resources are associated in order according to the identifier order of the SRS resource set to which the plurality of SRS resources belong; Corresponding to an order in a configuration resource list of the SRS resources among the plurality of SRS resources; and a port number configured by a network side device for each SRS resource among the plurality of SRS resources.

20. The target information of each SRS resource among the plurality of SRS resources is the same, and the target information includes: Cyclic shift and Comb structure; a frequency domain mapping position; time domain symbol position; The number of repetitions, A transmission period.

21. A time domain symbol position corresponding to each SRS resource among the plurality of SRS resources is The time domain symbol positions corresponding to each SRS resource are the same; and The time domain symbol positions corresponding to each SRS resource are adjacent to each other; 11. The method of claim 10, wherein the time domain symbol positions corresponding to each SRS resource are within the same time window.

22. An SRS port mapping device, comprising:

1. An SRS port mapping device comprising: a mapping module for mapping M port groups to N orthogonal frequency division multiplexing OFDM symbols, where M and N are integers equal to or greater than 1, and M is equal to or greater than N, a target sounding reference signal (SRS) port comprises one or more SRS resource ports, and the SRS resource ports are composed of the M port groups.

23. At least one of the value of M, the value of N, the number of ports corresponding to each of the M port groups, the port numbers corresponding to each of the M port groups, the number of ports mapped to each OFDM symbol, and the port numbers mapped to each OFDM symbol is The contract is concluded by default between the network side device and the terminal; The apparatus of claim 22, wherein the determination is made in one of the following ways: configured or instructed by a network side device.

24. 23. The apparatus of claim 22, wherein at least two of the value of M, the value of N, the number of ports corresponding to each of the M port groups, the port number corresponding to each of the M port groups, the number of ports mapped to each OFDM symbol, the port number mapped to each OFDM symbol, the comb structure of the target SRS, the number of repetitions of the target SRS, and the starting symbol position of the target SRS have an associated relationship.

25. 22. A terminal comprising a processor, a memory, and a program or instructions stored in the memory and operable to run on the processor, the program or instructions, when executed by the processor, implementing the steps of the SRS port mapping method according to any one of claims 1 to 21.

26. 22. A readable storage medium having a program or instructions stored thereon, the program or instructions implementing the steps of the SRS port mapping method of any one of claims 1 to 21 when executed by a processor.

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