Port mapping method and apparatus for sounding reference signal (SRS) resource, and terminal

Abstract

The present application relates to the technical field of communications. Disclosed are a port mapping method and apparatus for a sounding reference signal (SRS) resource, and a terminal. The port mapping method for an SRS resource in the embodiments of the present application comprises: a terminal sending an SRS resource, port mapping of the SRS resource being realized on the basis of a target parameter, wherein the target parameter comprises at least one of a first parameter and a second parameter, the first parameter comprises a parameter related to a Doppler domain or a parameter related to an orthogonal cover code (OCC) sequence, and the second parameter comprises a parameter related to a time domain.

Description

Port mapping method, device and terminal for sounding reference signal (SRS) resources

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on July 19, 2023, with application number 202310893914.4 and invention name “Port mapping method, device and terminal for sounding reference signal SRS resources”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application belongs to the field of communication technology, and specifically relates to a port mapping method, device and terminal for sounding reference signal (SRS) resources. Background Art

[0003] In current Time Division Duplex (TDD) systems, the network can enable a non-codebook-based physical downlink shared channel (PDSCH) transmission mode. In this mode, the network performs uplink channel estimation based on the Sounding Reference Signal (SRS) sent by the terminal and determines downlink precoding based on channel reciprocity.

[0004] In this case, for rapidly changing channels (such as high-speed transmission scenarios), the network side needs to base channel prediction on sufficient channel samples when using SRS to avoid possible problems of precoding and instantaneous channel mismatch. However, in this scenario, SRS needs to occupy more time domain, frequency domain and code domain resources, resulting in limited SRS capacity in the entire communication system.

[0005] Summary of the Invention

[0006] The embodiments of the present application provide a port mapping method, device, and terminal for SRS resources, which can solve the problem of limited SRS capacity in a communication system.

[0007] In a first aspect, a port mapping method for a sounding reference signal (SRS) resource is provided, comprising: a terminal sending an SRS resource, and the port mapping of the SRS resource is implemented based on a target parameter; wherein the target parameter includes at least one of a first parameter and a second parameter, the first parameter includes a Doppler domain-related parameter or an orthogonal cover code (OCC) sequence-related parameter, and the second parameter includes a time domain-related parameter.

[0008] In a second aspect, a port mapping device for a sounding reference signal (SRS) resource is provided, including: a transmission module for sending SRS resources, wherein the port mapping of the SRS resources is implemented based on a target parameter; wherein the target parameter includes at least one of a first parameter and a second parameter, the first parameter includes a Doppler domain-related parameter or an orthogonal cover code (OCC) sequence-related parameter, and the second parameter includes a time domain-related parameter.

[0009] According to a third aspect, a port mapping method for a sounding reference signal (SRS) resource is provided, comprising: a network-side device receiving an SRS resource sent by a terminal; wherein the port mapping of the SRS resource is implemented based on a target parameter, and the target parameter includes at least one of a first parameter and a second parameter, the first parameter includes a Doppler domain-related parameter or an orthogonal cover code (OCC) sequence-related parameter, and the second parameter includes a time domain-related parameter.

[0010] In a fourth aspect, a port mapping device for a sounding reference signal SRS resource is provided, comprising: a transmission module for receiving SRS resources sent by a terminal; wherein the port mapping of the SRS resource is implemented based on a target parameter, and the target parameter includes at least one of a first parameter and a second parameter, the first parameter includes a Doppler domain related parameter or an orthogonal cover code OCC sequence related parameter, and the second parameter includes a time domain related parameter.

[0011] In a fifth aspect, a terminal is provided, comprising a processor and a memory, wherein the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, the steps of the method described in the first aspect are implemented.

[0012] In a sixth aspect, a terminal is provided, comprising a processor and a communication interface, wherein the communication interface and the processor are coupled, and the processor is used to run a program or instruction to implement the steps of the method described in the first aspect.

[0013] In the seventh aspect, a network side device is provided, which terminal includes a processor and a memory, the memory storing programs or instructions that can be run on the processor, and the program or instructions, when executed by the processor, implement the steps of the method described in the third aspect.

[0014] In an eighth aspect, a network side device is provided, comprising a processor and a communication interface, wherein the communication interface and the processor are coupled, and the processor is used to run programs or instructions to implement the steps of the method described in the third aspect.

[0015] In a ninth aspect, a readable storage medium is provided, on which a program or instruction is stored. When the program or instruction is executed by a processor, the steps of the method described in the first aspect or the third aspect are implemented.

[0016] In the tenth aspect, a wireless communication system is provided, comprising: a terminal and a network side device, wherein the terminal can be used to execute the steps of the method described in the first aspect, and the network side device can be used to execute the steps of the method described in the third aspect.

[0017] In the eleventh aspect, a chip is provided, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the steps of the method described in the first aspect or the third aspect.

[0018] In a twelfth aspect, a computer program / program product is provided, wherein the computer program / program product is stored in a storage medium, and the program / program product is executed by at least one processor to implement the steps of the method described in the first aspect or the third aspect.

[0019] In the embodiment of the present application, port mapping of SRS resources is performed based on target parameters, which can further optimize the SRS port mapping method, thereby ensuring the multiplexing flexibility of the ports of SRS resources and improving the SRS capacity in the entire communication system. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] FIG1 is a schematic structural diagram of a wireless communication system provided by an exemplary embodiment of the present application.

[0021] FIG2 is a flowchart of a port mapping method for SRS resources provided by an exemplary embodiment of the present application.

[0022] FIG3 is a second flowchart of a port mapping method for SRS resources provided by an exemplary embodiment of the present application.

[0023] FIG4 a is one of the port mapping schematic diagrams provided by an exemplary embodiment of the present application.

[0024] FIG4 b is a second schematic diagram of port mapping provided by an exemplary embodiment of the present application.

[0025] FIG4c is a third schematic diagram of port mapping provided by an exemplary embodiment of the present application.

[0026] FIG4 d is a fourth schematic diagram of port mapping provided by an exemplary embodiment of the present application.

[0027] FIG4e is a fourth schematic diagram of port mapping provided by an exemplary embodiment of the present application.

[0028] FIG5 is a third flowchart of a port mapping method for SRS resources provided by an exemplary embodiment of the present application.

[0029] FIG6 is a schematic diagram of a structure of a port mapping device for SRS resources provided by an exemplary embodiment of the present application.

[0030] FIG. 7 is a second structural diagram of a port mapping device for SRS resources provided by an exemplary embodiment of the present application.

[0031] FIG8 is a schematic structural diagram of a communication device provided by an exemplary embodiment of the present application.

[0032] FIG9 is a schematic structural diagram of a terminal provided by an exemplary embodiment of the present application.

[0033] FIG10 is a schematic structural diagram of a network-side device provided by an exemplary embodiment of the present application. DETAILED DESCRIPTION

[0034] The following will be combined with the accompanying drawings in the embodiments of this application to clearly describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of this application.

[0035] The terms "first", "second", etc. in this application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the terms used in this way are interchangeable where appropriate, so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of the same type, and do not limit the number of objects, for example, the first object can be one or more. In addition, "or" in this application represents at least one of the connected objects. For example, "A or B" covers three options, namely, Option 1: including A but not including B; Option 2: including B but not including A; Option 3: including both A and B. The character " / " generally indicates that the objects associated before and after are in an "or" relationship.

[0036] The term "indication" in this application can be either a direct indication (or explicit indication) or an indirect indication (or implicit indication). A direct indication can be understood as the sender explicitly informing the receiver of specific information, the operation to be performed, or the requested result, etc. in the instruction sent; an indirect indication can be understood as the receiver determining the corresponding information based on the instruction sent by the sender, or making a judgment and determining the operation to be performed or the requested result, etc. based on the judgment result.

[0037] It is worth noting that the technology described in the embodiments of the present application is not limited to the Long Term Evolution (LTE) / LTE-Advanced (LTE-A) system, but can also be used in 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) or other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the technology described can be used for the systems and radio technologies mentioned above, as well as for other systems and radio technologies. The following description describes a New Radio (NR) system for illustrative purposes, and NR terminology is used in most of the following description, but these technologies can also be applied to systems other than NR systems, such as 6th generation (6G) systems. th Generation, 6G) communication system.

[0038] FIG1 is a block diagram of a wireless communication system applicable to an embodiment of the present application. The wireless communication system includes a terminal 11 and a network-side device 12. The terminal 11 may be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer), a notebook computer, a personal digital assistant (PDA), a handheld computer, a netbook, an ultra-mobile personal computer (UMPC), a mobile internet device (MID), an augmented reality (AR), a virtual reality (VR) device, a robot, a wearable device (Wearable Device), an aircraft (Flight Vehicle), a vehicle-mounted device (VUE), a ship-mounted device, a pedestrian user equipment (PUE), a smart home (home appliances with wireless communication capabilities, such as refrigerators, televisions, washing machines, or furniture), a game console, a personal computer (PC), an ATM, or a self-service machine, or other terminal-side devices. Wearable devices include: smart watches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart bracelets, smart rings, smart necklaces, smart anklets, smart anklets, etc.), smart wristbands, smart clothing, etc. Among them, the vehicle-mounted device can also be called a vehicle-mounted terminal, a vehicle-mounted controller, a vehicle-mounted module, a vehicle-mounted component, a vehicle-mounted chip or a vehicle-mounted unit, etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiment of the present application. The network side device 12 may include an access network device or a core network device, wherein the access network device may also be called a radio access network (Radio Access Network, RAN) device, a radio access network function or a radio access network unit. The access network device may include a base station, a wireless local area network (WLAN) access point (AS) or a wireless fidelity (WiFi) node, etc.Among them, the base station can be referred to as Node B (NB), Evolved Node B (eNB), the next generation Node B (gNB), New Radio Node B (NR Node B), access point, Relay Base Station (RBS), Serving Base Station (SBS), Base Transceiver Station (BTS), radio base station, radio transceiver, Basic Service Set (BSS), Extended Service Set (ESS), Home Node B (HNB), Home Evolved Node B (home evolved Node B), Transmission Reception Point (TRP) or other appropriate terms in the field. As long as the same technical effect is achieved, the base station is not limited to specific technical vocabulary. It should be noted that in the embodiment of the present application, only the base station in the NR system is used as an example for introduction, and the specific type of the base station is not limited.

[0039] The technical solutions provided by the embodiments of the present application are described in detail below through some embodiments and their application scenarios in conjunction with the accompanying drawings.

[0040] As shown in Figure 2, a flow chart of a method 200 for port mapping SRS resources provided in an exemplary embodiment of the present application is provided. The method 200 can be, but is not limited to, executed by a terminal, and specifically can be executed by hardware or software installed in the terminal. In this embodiment, the method 200 can include at least the following steps.

[0041] S210: The terminal sends SRS resources.

[0042] The SRS resources may be used for, but not limited to, channel estimation on the network side. In this embodiment, the port (also referred to as SRS port) mapping of the SRS resources may be implemented based on target parameters to improve the flexibility of port reuse and enhance SRS capacity.

[0043] In this embodiment, the target parameter may include at least one of the first parameter and the second parameter. That is, when performing port mapping, it can be implemented based on only the first parameter or the second parameter, or based on both the first parameter and the second parameter, without limitation.

[0044] The first parameter may include a Doppler domain-related parameter or an orthogonal cover code (OCC) sequence-related parameter. It can be understood that the Doppler domain is a domain corresponding to a discrete Fourier transform (DFT) of the time domain. Based on this, in this embodiment, the Doppler domain-related parameter may include, but is not limited to, a Doppler domain cyclic shift parameter, a Doppler domain frequency offset parameter, a Doppler domain phase parameter, and the like.

[0045] The OCC sequence may be a time division OCC (TD-OCC) sequence. Port mapping based on the TD-OCC sequence in the time domain and port mapping based on Doppler domain-related parameters in the Doppler domain can be understood as being equivalent, such as different related parameters in the Doppler domain corresponding to different TD-OCC sequences in the time domain.

[0046] That is to say, this embodiment performs port mapping of SRS resources based on Doppler domain related parameters or OCC sequence related parameters, which can be understood as adding the Doppler domain mapping dimension in the port mapping process, thereby improving the flexibility of port multiplexing and further enhancing the SRS capacity of the communication system.

[0047] The second parameter includes time domain related parameters, such as the symbol interval, puncturing symbols, etc. when the SRS resource is port mapped. It can be understood that in this embodiment, the port mapping of the SRS resource is based on the time domain related parameters (such as symbol interval, puncturing symbols, etc.), which can realize port multiplexing between multiple SRS resources, thereby improving the SRS capacity in the communication system.

[0048] It is worth noting that, when performing port mapping based on the aforementioned target parameters, this embodiment can implement port multiplexing in a single SRS resource or port multiplexing between multiple SRS resources, depending on the target parameters, which is not limited here.

[0049] In this embodiment, port mapping of SRS resources is performed based on target parameters, which can further optimize the SRS port mapping method, thereby ensuring the multiplexing flexibility of the ports of SRS resources and improving the SRS capacity of the entire communication system.

[0050] As shown in Figure 3, a flow chart of a method 300 for port mapping SRS resources provided in an exemplary embodiment of the present application is provided. The method 300 can be, but is not limited to, executed by a terminal, specifically by hardware or software installed in the terminal. In this embodiment, the method 300 can include at least the following steps.

[0051] S310: The terminal sends an SRS resource, and port mapping of the SRS resource is implemented based on a target parameter.

[0052] The target parameter includes at least one of a first parameter and a second parameter, the first parameter includes a Doppler domain related parameter or an OCC sequence related parameter, and the second parameter includes a time domain related parameter.

[0053] It is understood that, in addition to referring to the relevant description in the aforementioned method embodiment 200, the implementation process of S310 may be different. As a possible implementation, for different target parameters, the port mapping of the SRS resource is different. Different target parameters are described below.

[0054] In the case where the target parameter includes the first parameter (such as a Doppler domain related parameter and an OCC sequence related parameter), a configuration method of the first parameter may include at least one of the following method 1 and method 2.

[0055] Mode 1: The terminal receives first signaling, where the first signaling indicates a third parameter, and the third parameter is associated with M of the first parameters, where M is an integer greater than or equal to 1 and less than or equal to N, and N is the number of ports of the SRS resource. In other words, in Mode 1, the third parameter can be used to implicitly indicate the first parameter, thereby achieving the indication of the first parameter while also saving signaling.

[0056] The first signaling may be, but is not limited to, Radio Resource Control (RRC) signaling, etc.

[0057] In one implementation, before indicating the third parameter through the first signaling, the association relationship between the third parameter and the first parameter may be determined or configured in different ways. For example, in this embodiment, the association relationship between the third parameter and the M first parameters may be determined by at least one of the following (11)-(13).

[0058] (11) Default agreement between the network side and the terminal (also known as negotiated agreement).

[0059] For example, assuming that the SRS resource has N=8 ports and the first parameter is a Doppler domain related parameter, then:

[0060] When the third parameter is a value of A, it can be assumed that the third parameter is associated with two Doppler domain-related parameters, d1 and d2. In this case, some of the eight ports correspond to the Doppler domain parameter d1, and some correspond to the Doppler domain-related parameter d2. For example, four of the eight ports correspond to the Doppler domain parameter d1, and the remaining four ports correspond to the Doppler domain-related parameter d2.

[0061] When the third parameter is a value of B, it can be assumed that the third parameter is associated with two Doppler domain-related parameters, d3 and d4. In this case, some of the eight ports correspond to the Doppler domain parameter d3, and some correspond to the Doppler domain-related parameter d4. For example, four of the eight ports correspond to the Doppler domain-related parameter d3, and the remaining four ports correspond to the Doppler domain-related parameter d4.

[0062] And so on.

[0063] (12) Terminal autonomous determination.

[0064] For example, assuming that the SRS resource has N = 8 ports and the first parameter is a Doppler domain-related parameter, then the terminal can autonomously determine that the third parameter with a value of A is associated with the two Doppler domain parameters d1 and d2, and the third parameter with a value of B is associated with the Doppler domain parameters d3 and d4. In this case, in order to ensure that the network side and the terminal have a consistent understanding of the association relationship, the terminal can report the association relationship to the network side device after autonomously determining the association relationship to indicate the third parameter.

[0065] (13) Network side configuration.

[0066] For example, assuming that the SRS resource has N = 8 ports and the first parameter is a Doppler domain-related parameter, then when the third parameter is an A value, the Doppler domain-related parameters associated therewith can be configured through RRC signaling, such as configuring the Doppler domain-related parameters d1 and d3 to be associated with the A value, configuring the Doppler domain-related parameters d2 and d4 to be associated with the B value, etc. through RRC signaling, and no restrictions are imposed here.

[0067] Mode 2: Receive a second signaling, where the second signaling indicates L of the first parameters, where L is an integer greater than or equal to 1 and less than or equal to N, and N is the number of ports of the SRS resource.

[0068] Among them, port mapping of SRS resources is performed according to the number of the first parameters. For example, when L is equal to N, the N ports can respectively use one first parameter; for example, when L is an integer less than N, at least some of the N ports share one first parameter.

[0069] Exemplarily, when L is an integer equal to N, assuming that the SRS resource has N=8 ports, then the second signaling configures 8 Doppler domain related parameters d1, d2, d3, d4, d5, d6, d7 and d8, each corresponding to 1 port.

[0070] Alternatively, when L is an integer less than N, assuming that the SRS resource has N=8 ports, then the second signaling configures 2 Doppler domain related parameters d1 and d2. Through the default agreement of the network and the terminal, 4 ports correspond to the Doppler domain parameter d1, and the other 4 ports correspond to the Doppler domain parameter d2.

[0071] In one implementation, during the port mapping process of the SRS resource, if the N ports of the SRS resource correspond to multiple first parameters, then the multiple first parameters can satisfy at least one of the following (21)-(22), thereby ensuring the orthogonality of port multiplexing.

[0072] (21) The values ​​of the plurality of first parameters are obtained by equally dividing the predetermined value range according to a specific value, that is, the values ​​of the plurality of first parameters are equally spaced.

[0073] For example, assuming that the SRS resource has N=8 SRS ports and is associated with 4 Doppler domain related parameters d1, d2, d3, and d4, then the values ​​of the Doppler domain related parameters d1, d2, d3, and d4 are equally spaced.

[0074] Based on this, when performing port mapping of SRS resources, port #0 and port #1 correspond to the Doppler domain related parameter d1, port #2 and port #3 correspond to the Doppler domain parameter d2, port #4 and port #5 correspond to the Doppler domain parameter d3, and port #6 and port #7 correspond to the Doppler domain parameter d4.

[0075] (22) The total number of the first parameters does not exceed a predetermined value, and the predetermined value is related to at least one of the number of ports, the number of cyclic shifts, and the number of comb offsets of the SRS resource.

[0076] For example, assuming that the SRS resource has N=8 ports and the SRS comb structure is configured as Comb 2, port #0 and port #1 are multiplexed based on cyclic shift #1 and cyclic shift #2, respectively, and mapped to Comb offset #1; port #2 and port #3 are multiplexed based on cyclic shift #1 and cyclic shift #2, respectively, and mapped to Comb offset #2; port #4 and port #5 are multiplexed based on cyclic shift #1 and cyclic shift #2, respectively, and mapped to Comb offset #1; port #6 and port #7 are multiplexed based on cyclic shift #1 and cyclic shift #2, respectively, and mapped to Comb offset #2. In this case, to achieve multiplexing of 8 ports, the total number of the first parameters can be 2, corresponding to the Doppler domain-related parameters d1 and d2. In this case, ports #0, #1, #2, and #3 correspond to the Doppler domain-related parameter d1, and ports #4, #5, #6, and #7 correspond to the Doppler domain-related parameter d2. In other words, the total number of the first parameters needs to be inferred or determined in conjunction with the Cyclic shift number and Comb offset number used for port multiplexing of the SRS resource, thereby satisfying the multiplexing of all ports of the SRS resource.

[0077] It is worth noting that when performing SRS port mapping based on the first parameter, in addition to the aforementioned situation where the N ports of the SRS resource correspond to multiple first parameters, in one implementation, for the N ports of the SRS resource, each port can also correspond to the same first parameter.

[0078] For example, when the N ports of the SRS resource correspond to the same first parameter, the N ports may be multiplexed according to a first multiplexing mode, wherein the first multiplexing mode includes at least one of the following (31)-(33), thereby ensuring orthogonality of port multiplexing.

[0079] (31) Multiplexing is performed according to cyclic shift, i.e., code division multiplexing (CDM).

[0080] (32) Multiplexing is performed according to the comb offset, i.e. frequency-division multiplexing (FDM).

[0081] (33) Time domain multiplexing is performed according to the symbols occupied by the SRS resources, namely, time division multiplexing (TDM).

[0082] For another example, when at least some of the N ports of the SRS resource correspond to different first parameters, the N ports can be multiplexed according to a second multiplexing method; wherein the second multiplexing method includes at least one of the following (41)-(44), thereby improving the flexibility and capacity of port multiplexing.

[0083] (41) Multiplexing is performed according to cyclic shift, i.e., CDM.

[0084] (42) Multiplexing is performed according to the comb offset, i.e. FDM.

[0085] It can be understood that the Cyclic shift and Comb offset described in (41)-(42) above are frequency domain parameters.

[0086] (43) Time domain multiplexing, i.e., TDM, is performed according to the symbols occupied by the SRS resources.

[0087] (44) Multiplexing is performed according to the first parameters (i.e., the aforementioned Doppler domain related parameters and OCC sequence related parameters).

[0088] In one implementation, when the N ports of the SRS resource occupy multiple symbols, the sequence values ​​of the SRS resource mapped onto the multiple symbols are related to the first parameter (i.e., the Doppler domain-related parameter and the OCC sequence-related parameter). The sequence values ​​of the SRS resource mapped onto the multiple symbols can be determined by a function with the first parameter as an independent variable. In addition, in this embodiment, the sequence values ​​of the SRS resource mapped onto the multiple symbols can be determined by a time parameter.

[0089] For example, the sequence values ​​of the SRS resources mapped onto the multiple symbols may be determined based on a function including a Doppler domain-related parameter and a time parameter as independent variables. For example, the sequence values ​​of the SRS resources mapped onto the multiple symbols may be e^(j*Doppler domain frequency offset fd*time parameter). Optionally, the time parameter includes at least one of a symbol index, a symbol period, and a number of symbols, that is, the phase of the sequence values ​​of the SRS resources on different symbols rotates with the time parameter.

[0090] In this embodiment, for the case where the first parameter includes the OCC sequence-related parameters, in addition to having the aforementioned related characteristics, in one implementation, when the target OCC sequence is determined based on the OCC sequence-related parameters, the ports of the SRS resource may also correspond to the target OCC sequence, such as some of the N ports of the SRS resource correspond to a target OCC sequence, thereby realizing port multiplexing of an SRS resource; for another example, all ports in one SRS resource correspond to one target OCC sequence, and all ports in another SRS resource correspond to another target OCC sequence, thereby realizing port multiplexing between two SRS resources, etc., which are not limited here.

[0091] It should be noted that, in this embodiment, the manner in which the terminal determines the target OCC sequence according to the OCC sequence-related parameters may include at least one of the following (51)-(52).

[0092] (51) When the OCC sequence related parameters are configured, different target OCC sequences correspond to different OCC sequence related parameters, such as the target OCC sequence and the OCC sequence related parameters are mapped one to one (or correspond one to one).

[0093] (52) When the OCC sequence related parameters are not configured, all elements in the target OCC sequence are 1.

[0094] In one implementation, each element in the target OCC sequence corresponds one-to-one to the symbol occupied by the SRS resource (ie, the TD-OOC sequence).

[0095] It is worth noting that the length of the aforementioned target OCC sequence can be determined by at least one of the following (61)-(64).

[0096] (61) The number of repetitions of the SRS resource.

[0097] For example, assuming that the number of repetitions of the SRS resource is 14, the length of the target OCC sequence is also 14, and its mapping elements on each symbol are related to Doppler domain related parameters and time parameters (such as symbol index, symbol period, number of symbols, etc.).

[0098] (62) The number of symbols occupied by the SRS resource.

[0099] (63) The number of time slots occupied by the SRS resource. The number of time slots occupied by the SRS resource may be the number of time slots occupied by one or more SRS resources.

[0100] In the case of one SRS resource, the one SRS resource occupies multiple consecutive time slots.

[0101] In the case of multiple SRS resources, the time slots occupied by the multiple SRS resources are continuous, that is, the multiple SRS resources correspond to the same OCC sequence, that is, there is a binding relationship between the multiple SRS resources.

[0102] (64) A fourth parameter, which is a parameter other than the number of repetitions of the SRS resource, the number of symbols occupied by the SRS resource, and the number of time slots occupied by the SRS resource, such as the length of the target OCC sequence. In other words, the length of the target OCC sequence may also be indicated or determined by the fourth parameter, i.e., the length of the target OCC sequence may be different from the number of repetitions of the SRS resource or the length of symbols occupied by the SRS resource. For example, in order to multiplex with other SRS resources of different lengths, the length of the target OCC sequence may be determined by the fourth parameter.

[0103] Optionally, the fourth parameter may be configured through but not limited to RRC signaling.

[0104] In one implementation, during the port mapping process of SRS resources, in addition to the aforementioned Doppler domain-related parameters and OCC sequence-related parameters, for the case of port mapping of SRS resources based on a second parameter (such as a time domain-related parameter), the second parameter can also be configured through but not limited to RRC signaling.

[0105] And, in one implementation, when the terminal implements port mapping of the SRS resource based on the target parameter, the second parameter may be used to determine one of the following (51)-(52).

[0106] (51) The symbol interval between the symbols occupied by the SRS resource. Therefore, through the configuration of the symbol interval, port multiplexing of multiple different SRS resources can be achieved to improve the SRS capacity in the entire communication system.

[0107] In this embodiment, the symbol interval may be a value ranging from 0 to 13.

[0108] In addition, when the SRS resource is port-mapped based on the symbol interval, the mapping method may include at least one of the following (a)-(b).

[0109] (a) The starting symbol position of the SRS resource when port mapping is performed is determined by the first symbol offset.

[0110] For example, the starting symbol position calculated according to the start position parameter of the SRS resource configuration is P1, and then based on this, the final starting symbol position is determined to be P1+offset according to the first symbol offset.

[0111] The first symbol offset is determined by protocol agreement, network side configuration or terminal configuration, and is not limited here.

[0112] (b) When the SRS resource is configured with a repetition number R, the port mapping is repeated R times based on the symbol interval, or is repeated R / X times based on the symbol interval, where R / X is an integer and X is the symbol interval.

[0113] For example, the number of repetitions of the SRS resource is R=14, and the symbol interval X=2. Then, the actual number of symbols mapped to the SRS port is 7, and the interval between each symbol is 2.

[0114] (52) The puncturing symbols between the symbols occupied by the SRS resources can also be understood as a rate matching pattern. Thus, by configuring the puncturing symbols, port multiplexing of multiple different SRS resources can be achieved to improve the SRS capacity in the entire communication system.

[0115] The punch symbol is determined by one of the following (a)-(b).

[0116] (a) Bitmap indication.

[0117] (b) The starting position and punch length of the punch symbol.

[0118] It is worth noting that, when port mapping is performed, the SRS resource is not symbol mapped at the puncturing symbol position. The puncturing length can be understood as the number of punctured symbols.

[0119] In an embodiment of the present application, by optimizing the port mapping scheme of SRS resources, the channel capacity is further improved through Doppler domain port multiplexing, or the symbol occupancy of SRS resources is reduced through time domain multiplexing to achieve port mapping between multiple SRS resources, thereby effectively improving the SRS capacity of the entire communication system.

[0120] Based on the description of the aforementioned SRS resource port mapping method embodiments 200-300, for ease of understanding, the process of the SRS resource port mapping method provided in this application is exemplarily described step by step with reference to examples, as follows.

[0121] Example 1

[0122] Assume that the SRS resource has N=8 ports, where the delay domain can be obtained by performing an inverse fast Fourier transform (IFFT) on the frequency domain, and the Doppler domain can be obtained by performing an FFT on the time domain. Then:

[0123] (1) As shown in Figure 4a, assume an SRS resource with 8 ports, where port #0 and port #1 correspond to the same Doppler domain parameter, mapped to the fd1 position in the Doppler domain; port #2 and port #3 correspond to the same Doppler domain parameter, mapped to the fd2 position in the Doppler domain; port #4 and port #5 correspond to the same Doppler domain parameter, mapped to the fd3 position in the Doppler domain; and port #6 and port #7 correspond to the same Doppler domain parameter, mapped to the fd4 position in the Doppler domain. In addition, port #0, port #2, port #4, and port #6 correspond to the same cyclic shift value, mapped to the delay τ1 position; port #1, port #3, port #5, and port #6 correspond to the same cyclic shift value, mapped to the delay τ2 position, thereby achieving multiplexing of the 8 ports.

[0124] (2) Please refer to Figure 4a again. Assume that there are 4 SRS resources with 2 ports. SRS resource #1 includes ports #0 and #1, corresponding to 1 Doppler domain parameter and 2 cyclic shift values, mapped to the fd1 position and delay τ1 and τ2 positions in the Doppler domain; SRS resource #2 includes ports #2 and port #3, corresponding to 1 Doppler domain parameter and 2 frequency domain cyclic shift values, mapped to the fd2 position and delay τ1 and τ2 positions in the Doppler domain; SRS resource #3 includes ports #4 and #5, corresponding to the same Doppler domain parameter and 2 frequency domain cyclic shift values, mapped to the fd3 position and delay τ1 and τ2 positions in the Doppler domain; SRS resource #4 ports #6 and #7 correspond to the same Doppler domain parameter and 2 cyclic shift values, mapped to the fd4 position and delay τ1 and τ2 positions in the Doppler domain, thereby realizing the multiplexing of 8 ports.

[0125] Furthermore, the four Doppler domain parameters (corresponding to fd1, fd2, fd3, and fd4) are converted to four different target OCC sequences in the time domain. Therefore, it can be understood that the SRS ports are multiplexed in the time domain based on the TD-OCC sequence by configuring the Doppler domain-related parameters. Different TD-OCC sequences correspond to different Doppler domain-related parameters, such as the Doppler domain frequency offset.

[0126] Example 2

[0127] Assuming the SRS resource repetition count R = 14, and the port mapping is based on the symbol interval repetition R times, then: if the symbol interval X is determined to be 2 symbols using time-domain related parameters, and the first symbol offset is 0, the port mapping result of the SRS resource based on the time-domain related parameters is shown in Figure 4b. If the symbol interval X is determined to be 2 symbols using time-domain related parameters, and the first symbol offset is 1, the port mapping result of the SRS resource based on the time-domain related parameters is shown in Figure 4c.

[0128] Example 3

[0129] Assume that multiple ports of the SRS resource are mapped to 2 symbols. For example, 8-port SRS resources are mapped to 2 symbols in the form of TDM. At this time, if the symbol interval X is determined to be 2 symbols through time domain related parameters and the first symbol offset is 0, the port multiplexing result of the SRS resource can be shown in Figure 4d.

[0130] Example 4

[0131] Assuming that the number of repetitions of the SRS resource is R=14, then the puncturing symbol positions are determined by time domain related parameters as symbols #3, #4, #5, #8, #9, #10, #13, and #14. As shown in FIG4e , this can be indicated by bitmap 11000110001100, where each bit corresponds to one symbol.

[0132] It can be understood that the port mapping method of the aforementioned SRS resources provided in this application may include but is not limited to those shown in Examples 1 to 4.

[0133] As shown in Figure 5, a flow chart of a method 500 for port mapping SRS resources provided in an exemplary embodiment of the present application is provided. This method 500 can be, but is not limited to, executed by a network-side device, specifically by hardware or software installed in the network-side device. In this embodiment, the method 500 can include at least the following steps.

[0134] S510: A network-side device receives an SRS resource sent by a terminal.

[0135] The port mapping of the SRS resource is implemented based on a target parameter, and the target parameter includes at least one of a first parameter and a second parameter, the first parameter includes a Doppler domain related parameter or an orthogonal cover code OCC sequence related parameter, and the second parameter includes a time domain related parameter.

[0136] Optionally, when the target parameter includes the first parameter, the method further includes at least one of the following: sending first signaling to the terminal, where the first signaling is used to indicate a third parameter, where the third parameter is associated with M first parameters, where M is an integer greater than or equal to 1 and less than or equal to N;

[0137] Sending a second signaling to the terminal, where the second signaling is used to indicate L first parameters, where L is an integer greater than or equal to 1 and less than or equal to N; wherein N is the number of ports of the SRS resource.

[0138] Optionally, the association relationship between the third parameter and M first parameters is determined by at least one of the following: default agreement between the network side and the terminal; terminal reporting; network side configuration.

[0139] It can be understood that method embodiment 500 has the same or corresponding technical features as the aforementioned method embodiments 200-300. Therefore, the implementation process of each implementation method in method embodiment 500 can refer to the relevant description of the aforementioned method embodiments 200-300, and achieve the same or corresponding technical effects. To avoid repetition, it will not be repeated here.

[0140] The port mapping method for SRS resources provided in the embodiment of the present application can be executed by an SRS resource port mapping method device. In the embodiment of the present application, the port mapping method for SRS resources performed by the SRS resource port mapping device is taken as an example to illustrate the SRS resource port mapping device provided in the embodiment of the present application.

[0141] As shown in Figure 6, it is a structural diagram of a port mapping device 600 for SRS resources provided in an embodiment of the present application. The device includes a transmission module 610 for sending SRS resources, and the port mapping of the SRS resources is implemented based on a target parameter; wherein the target parameter includes at least one of a first parameter and a second parameter, the first parameter includes a Doppler domain related parameter or an orthogonal cover code OCC sequence related parameter, and the second parameter includes a time domain related parameter.

[0142] Optionally, when the target parameter includes the first parameter, the transmission module is also used for at least one of the following: receiving a first signaling, the first signaling indicating a third parameter, the third parameter being associated with M first parameters, M being an integer greater than or equal to 1 and less than or equal to N; receiving a second signaling, the second signaling indicating L first parameters, L being an integer greater than or equal to 1 and less than or equal to N; wherein N is the number of ports of the SRS resource.

[0143] Optionally, the association relationship between the third parameter and the M first parameters is determined by at least one of the following: a default agreement between the network side and the terminal; autonomous determination by the terminal; or configuration on the network side.

[0144] Optionally, when L is an integer smaller than N, at least some of the N ports share one first parameter.

[0145] Optionally, in the case where the N ports of the SRS resource correspond to multiple first parameters, the multiple first parameters satisfy at least one of the following: the values ​​of the multiple first parameters are obtained by evenly dividing the predetermined value range according to specific values; the total number of the multiple first parameters does not exceed a predetermined value, and the predetermined value is related to at least one of the number of ports of the SRS resource, the number of cyclic shifts, and the number of comb offsets.

[0146] Optionally, when the N ports of the SRS resource correspond to the same first parameter, the N ports are multiplexed according to a first multiplexing method; wherein the first multiplexing method includes at least one of the following: multiplexing according to Cyclic shift; multiplexing according to Comb offset; time domain multiplexing according to the symbols occupied by the SRS resource.

[0147] Optionally, when at least some of the N ports of the SRS resource correspond to different first parameters, the N ports are multiplexed according to a second multiplexing method; wherein the second multiplexing method includes at least one of the following: multiplexing according to Cyclic shift; multiplexing according to Comb offset; time domain multiplexing according to the symbols occupied by the SRS resource; multiplexing according to the first parameter.

[0148] Optionally, when the N ports of the SRS resource occupy multiple symbols, the sequence values ​​of the SRS resource mapped on the multiple symbols are related to the first parameter.

[0149] Optionally, the sequence value of the SRS resource mapped on the multiple symbols is determined by a time parameter, and the time parameter includes at least one of a symbol index, a symbol period, and the number of symbols.

[0150] Optionally, when the target parameter includes the OCC sequence related parameter, the port of the SRS resource corresponds to a target OCC sequence, wherein the target OCC sequence is determined according to the OCC sequence related parameter.

[0151] Optionally, determining the target OCC sequence according to the OCC sequence related parameters includes at least one of the following: different target OCC sequences correspond to different OCC sequence related parameters; when the OCC sequence related parameters are not configured, all elements in the target OCC sequence are 1.

[0152] Optionally, each element in the target OCC sequence corresponds one-to-one to a symbol occupied by the SRS resource.

[0153] Optionally, the length of the target OCC sequence is determined by at least one of the following: the number of repetitions of the SRS resource; the number of symbols occupied by the SRS resource; the number of time slots occupied by the SRS resource; or a fourth parameter, which is a parameter other than the number of repetitions of the SRS resource, the number of symbols occupied by the SRS resource, and the number of time slots occupied by the SRS resource.

[0154] Optionally, when the target parameter includes the second parameter, in the process of implementing port mapping of the SRS resource based on the target parameter, the second parameter is used to determine any one of the following: the symbol interval between the symbols occupied by the SRS resource; the puncturing symbols between the symbols occupied by the SRS resource.

[0155] Optionally, when the SRS resource is port mapped based on the symbol interval, the mapping method includes at least one of the following: the starting symbol position when the SRS resource is port mapped is determined by the first symbol offset; when the SRS resource is configured with a repetition number R, the port mapping is repeated R times based on the symbol interval, or repeated R / X times based on the symbol interval, where R / X is an integer and X is the symbol interval.

[0156] Optionally, the puncture symbol is determined by one of the following: a bitmap indication; a starting position and a puncture length of the puncture symbol.

[0157] The port mapping device 600 for SRS resources in the embodiment of the present application can be an electronic device, such as an electronic device with an operating system, or a component in an electronic device, such as an integrated circuit or a chip. The electronic device can be a terminal, or it can be other devices other than a terminal. For example, the terminal can include but is not limited to the types of terminals 11 listed above, and other devices can be servers, network attached storage (NAS), etc., which are not specifically limited in the embodiment of the present application.

[0158] The port mapping device for SRS resources provided in the embodiment of the present application can implement the various processes implemented in the method embodiments of Figures 2 to 3 and achieve the same technical effects. To avoid repetition, they will not be described here.

[0159] As shown in Figure 7, it is a structural diagram of a port mapping device 700 for SRS resources provided in an embodiment of the present application, and the device includes a transmission module 710 for receiving SRS resources sent by a terminal; wherein, the port mapping of the SRS resources is implemented based on a target parameter, and the target parameter includes at least one of a first parameter and a second parameter, the first parameter includes a Doppler domain related parameter or an orthogonal cover code OCC sequence related parameter, and the second parameter includes a time domain related parameter.

[0160] Optionally, when the target parameter includes the first parameter, the transmission module 710 is also used for at least one of the following: sending a first signaling to the terminal, the first signaling is used to indicate a third parameter, and the third parameter is associated with M first parameters, where M is an integer greater than or equal to 1 and less than or equal to N; sending a second signaling to the terminal, the second signaling is used to indicate L first parameters, where L is an integer greater than or equal to 1 and less than or equal to N; wherein N is the number of ports of the SRS resource.

[0161] Optionally, the association relationship between the third parameter and M first parameters is determined by at least one of the following: default agreement between the network side and the terminal; terminal reporting; network side configuration.

[0162] The port mapping device 700 for SRS resources in the embodiment of the present application can be an electronic device, such as an electronic device with an operating system, or a component in an electronic device, such as an integrated circuit or a chip. The electronic device can be a network-side device, or it can be a device other than a network-side device. For example, the network-side device can include but is not limited to the types of network-side devices 12 listed above, and other devices can be servers, network attached storage (NAS), etc., which are not specifically limited in the embodiment of the present application.

[0163] The port mapping device for SRS resources provided in the embodiment of the present application can implement the various processes implemented in the method embodiment of Figure 5 and achieve the same technical effects. To avoid repetition, they will not be described here.

[0164] As shown in Figure 8, an embodiment of the present application further provides a communication device 800, including a processor 801 and a memory 802, wherein the memory 802 stores a program or instruction that can be run on the processor 801. For example, when the communication device 800 is a terminal, the program or instruction is executed by the processor 801 to implement the various steps of the above-mentioned SRS resource port mapping method embodiment, and can achieve the same technical effect. When the communication device 800 is a network-side device, the program or instruction is executed by the processor 801 to implement the various steps of the above-mentioned SRS resource port mapping method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0165] The present application also provides a terminal comprising a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is configured to execute a program or instruction to implement the steps of the method embodiments shown in Figures 2-3. This terminal embodiment corresponds to the aforementioned terminal-side method embodiment, and each implementation process and implementation method of the aforementioned method embodiment is applicable to this terminal embodiment and can achieve the same technical effects. Specifically, Figure 7 is a schematic diagram of the hardware structure of a terminal implementing an embodiment of the present application.

[0166] The terminal 900 includes but is not limited to: a radio frequency unit 901, a network module 902, an audio output unit 903, an input unit 904, a sensor 905, a display unit 906, a user input unit 909, an interface unit 908, a memory 909 and at least some of the components of the processor 910.

[0167] Those skilled in the art will appreciate that the terminal 900 may also include a power supply (such as a battery) to power various components. The power supply may be logically connected to the processor 910 via a power management system, thereby enabling the power management system to manage charging, discharging, and power consumption. The terminal structure shown in FIG9 does not limit the terminal. The terminal may include more or fewer components than shown, or may combine certain components, or have different component arrangements, which will not be described in detail here.

[0168] It should be understood that in an embodiment of the present application, the input unit 904 may include a graphics processing unit (GPU) 9041 and a microphone 9042, and the graphics processor 9041 processes the image data of a static picture or video obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. The display unit 906 may include a display panel 9061, and the display panel 9061 may be configured in the form of a liquid crystal display, an organic light emitting diode, etc. The user input unit 907 includes a touch panel 9071 and at least one of other input devices 9072. The touch panel 9071 is also called a touch screen. The touch panel 9071 may include two parts: a touch detection device and a touch controller. Other input devices 9072 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, and an operating stick, which will not be repeated here.

[0169] In the embodiment of the present application, after receiving downlink data from a network-side device, the RF unit 901 may transmit the data to the processor 910 for processing. Furthermore, the RF unit 901 may send uplink data to the network-side device. Typically, the RF unit 901 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low-noise amplifier, a duplexer, and the like.

[0170] The memory 909 can be used to store software programs or instructions and various data. The memory 909 may mainly include a first storage area for storing programs or instructions and a second storage area for storing data. The first storage area may store an operating system, applications or instructions required for at least one function (such as a sound playback function, an image playback function, etc.). In addition, the memory 909 may include a volatile memory or a non-volatile memory. 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. Volatile memory can be random access memory (RAM), static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct RAM bus random access memory (DRRAM). The memory 909 in the embodiment of the present application includes but is not limited to these and any other suitable types of memory.

[0171] Processor 910 may include one or more processing units. Optionally, processor 910 integrates an application processor and a modem processor. The application processor primarily handles operations related to the operating system, user interface, and application programs, while the modem processor primarily processes wireless communication signals, such as a baseband processor. It is understood that the modem processor may not be integrated into processor 910.

[0172] Among them, the radio frequency unit 901 is used to send SRS resources, and the port mapping of the SRS resources is implemented based on the target parameters; wherein, the target parameters include at least one of the first parameter and the second parameter, the first parameter includes the Doppler domain related parameter or the orthogonal cover code OCC sequence related parameter, and the second parameter includes the time domain related parameter.

[0173] Optionally, when the target parameter includes the first parameter, the radio frequency unit 901 is also used for at least one of the following: receiving a first signaling, the first signaling indicating a third parameter, the third parameter being associated with M first parameters, M being an integer greater than or equal to 1 and less than or equal to N; receiving a second signaling, the second signaling indicating L first parameters, L being an integer greater than or equal to 1 and less than or equal to N; wherein N is the number of ports of the SRS resource.

[0174] Optionally, the association relationship between the third parameter and the M first parameters is determined by at least one of the following: a default agreement between the network side and the terminal; autonomous determination by the terminal; or configuration on the network side.

[0175] Optionally, when L is an integer smaller than N, at least some of the N ports share one first parameter.

[0176] Optionally, in the case where the N ports of the SRS resource correspond to multiple first parameters, the multiple first parameters satisfy at least one of the following: the values ​​of the multiple first parameters are obtained by evenly dividing the predetermined value range according to specific values; the total number of the multiple first parameters does not exceed a predetermined value, and the predetermined value is related to at least one of the number of ports of the SRS resource, the number of cyclic shifts, and the number of comb offsets.

[0177] Optionally, when the N ports of the SRS resource correspond to the same first parameter, the N ports are multiplexed according to a first multiplexing method; wherein the first multiplexing method includes at least one of the following: multiplexing according to Cyclic shift; multiplexing according to Comb offset; time domain multiplexing according to the symbols occupied by the SRS resource.

[0178] Optionally, when at least some of the N ports of the SRS resource correspond to different first parameters, the N ports are multiplexed according to a second multiplexing method; wherein the second multiplexing method includes at least one of the following: multiplexing according to Cyclic shift; multiplexing according to Comb offset; time domain multiplexing according to the symbols occupied by the SRS resource; multiplexing according to the first parameter.

[0179] Optionally, when the N ports of the SRS resource occupy multiple symbols, the sequence values ​​of the SRS resource mapped on the multiple symbols are related to the first parameter.

[0180] Optionally, the sequence value of the SRS resource mapped on the multiple symbols is determined by a time parameter, and the time parameter includes at least one of a symbol index, a symbol period, and the number of symbols.

[0181] Optionally, when the target parameter includes the OCC sequence related parameter, the port of the SRS resource corresponds to a target OCC sequence, wherein the target OCC sequence is determined according to the OCC sequence related parameter.

[0182] Optionally, determining the target OCC sequence according to the OCC sequence related parameters includes at least one of the following: different target OCC sequences correspond to different OCC sequence related parameters; when the OCC sequence related parameters are not configured, all elements in the target OCC sequence are 1.

[0183] Optionally, each element in the target OCC sequence corresponds one-to-one to a symbol occupied by the SRS resource.

[0184] Optionally, the length of the target OCC sequence is determined by at least one of the following: the number of repetitions of the SRS resource; the number of symbols occupied by the SRS resource; the number of time slots occupied by the SRS resource; or a fourth parameter, which is a parameter other than the number of repetitions of the SRS resource, the number of symbols occupied by the SRS resource, and the number of time slots occupied by the SRS resource.

[0185] Optionally, when the target parameter includes the second parameter, in the process of implementing port mapping of the SRS resource based on the target parameter, the second parameter is used to determine any one of the following: the symbol interval between the symbols occupied by the SRS resource; the puncturing symbols between the symbols occupied by the SRS resource.

[0186] Optionally, when the SRS resource is port mapped based on the symbol interval, the mapping method includes at least one of the following: the starting symbol position when the SRS resource is port mapped is determined by the first symbol offset; when the SRS resource is configured with a repetition number R, the port mapping is repeated R times based on the symbol interval, or repeated R / X times based on the symbol interval, where R / X is an integer and X is the symbol interval.

[0187] Optionally, the puncture symbol is determined by one of the following: a bitmap indication; a starting position and a puncture length of the puncture symbol.

[0188] It can be understood that the implementation process of each implementation method mentioned in this embodiment can refer to the relevant description of the port mapping method embodiment of SRS resources, and achieve the same or corresponding technical effects. To avoid repetition, it will not be described here.

[0189] The present application also provides a network-side device, including a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is configured to execute a program or instruction to implement the steps of the method embodiment shown in FIG5 . This network-side device embodiment corresponds to the aforementioned network-side device method embodiment, and each implementation process and implementation method of the aforementioned method embodiment are applicable to this network-side device embodiment and can achieve the same technical effects.

[0190] Specifically, embodiments of the present application also provide a network-side device. As shown in Figure 10, network-side device 1000 includes an antenna 1001, a radio frequency device 1002, a baseband device 1003, a processor 1004, and a memory 1005. Antenna 1001 is connected to radio frequency device 1002. In the uplink direction, radio frequency device 1002 receives information via antenna 1001 and sends the received information to baseband device 1003 for processing. In the downlink direction, baseband device 1003 processes the information to be transmitted and sends it to radio frequency device 1002. Radio frequency device 1002 processes the received information and then sends it through antenna 1001.

[0191] The method executed by the network-side device in the above embodiment may be implemented in the baseband device 1003 , which includes a baseband processor.

[0192] The baseband device 1003 may, for example, include at least one baseband board, on which multiple chips are arranged, as shown in Figure 10, one of which is, for example, a baseband processor, which is connected to the memory 1005 through a bus interface to call the program in the memory 1005 and execute the network device operations shown in the above method embodiment.

[0193] The network side device may further include a network interface 1006, which is, for example, a Common Public Radio Interface (CPRI).

[0194] Specifically, the network side device 1000 of the embodiment of the present application also includes: instructions or programs stored in the memory 1005 and executable on the processor 1004. The processor 1004 calls the instructions or programs in the memory 1005 to execute the method of execution of each module shown in Figure 7 and achieve the same technical effect. To avoid repetition, it will not be described here.

[0195] An embodiment of the present application also provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, the various processes of the above-mentioned SRS resource port mapping method embodiment are implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0196] The processor is the processor in the terminal 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. In some examples, the readable storage medium may be a non-transitory readable storage medium.

[0197] An embodiment of the present application further provides a chip, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the various processes of the above-mentioned SRS resource port mapping method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0198] It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

[0199] An embodiment of the present application further provides a computer program / program product, which is stored in a storage medium. The computer program / program product is executed by at least one processor to implement the various processes of the above-mentioned SRS resource port mapping method embodiment and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0200] An embodiment of the present application also provides a wireless communication system, including: a terminal and a network-side device, wherein the terminal can be used to implement the various processes of the above-mentioned SRS resource port mapping method embodiments 200-300, and the network-side device can be used to implement the various processes of the above-mentioned SRS resource port mapping method embodiment 500, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0201] It should be noted that, in this article, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in the opposite order according to the functions involved. For example, the described method may be performed in an order different from that described, and various steps may also be added, omitted or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0202] Through the description of the above embodiments, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of a computer software product plus a necessary general-purpose hardware platform, or of course, by hardware. The computer software product is stored in a storage medium (such as ROM, RAM, magnetic disk, optical disk, etc.) and includes a number of instructions for enabling a terminal or network-side device to execute the methods described in each embodiment of the present application.

[0203] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms of implementation methods without departing from the purpose of this application and the scope of protection of the claims. These implementation methods are all within the protection of this application.

Claims

1. A port mapping method for a sounding reference signal SRS resource, wherein: include: The terminal sends an SRS resource, and the port mapping of the SRS resource is implemented based on the target parameter; The target parameter includes at least one of a first parameter and a second parameter, the first parameter includes a Doppler domain related parameter or an orthogonal cover code OCC sequence related parameter, and the second parameter includes a time domain related parameter.

2. The method of claim 1, wherein: In the case where the target parameter includes the first parameter, the method further includes at least one of the following: receiving a first signaling indicating a third parameter, where the third parameter is associated with M of the first parameters, where M is an integer greater than or equal to 1 and less than or equal to N; receiving a second signaling indicating L of the first parameters, where L is an integer greater than or equal to 1 and less than or equal to N; Wherein, N is the number of ports of the SRS resource.

3. The method of claim 2, wherein: The association relationship between the third parameter and the M first parameters is determined by at least one of the following: Default agreement between the network side and the terminal; The terminal determines it autonomously; Network-side configuration.

4. The method of claim 2, wherein: When L is an integer smaller than N, at least some of the N ports share one first parameter.

5. The method of claim 2, wherein: In the case where the N ports of the SRS resource correspond to multiple first parameters, the multiple first parameters satisfy at least one of the following: The values ​​of the plurality of the first parameters are obtained by equally dividing the predetermined value range according to the specific value; The total number of the first parameters does not exceed a predetermined value, and the predetermined value is related to at least one of the number of ports, the number of cyclic shifts, and the number of comb offsets of the SRS resources.

6. The method according to any one of claims 1 to 5, wherein: When the N ports of the SRS resource correspond to the same first parameter, the N ports are multiplexed in a first multiplexing manner; The first multiplexing method includes at least one of the following: Multiplexing according to cyclic shift; Reuse according to Comb offset; Time domain multiplexing is performed according to the symbols occupied by the SRS resources.

7. The method according to any one of claims 1 to 5, wherein: When at least some of the N ports of the SRS resource correspond to different first parameters, the N ports are multiplexed according to a second multiplexing manner; The second multiplexing mode includes at least one of the following: Multiplexing according to cyclic shift; Reuse according to Comb offset; Performing time domain multiplexing according to the symbols occupied by the SRS resources; Multiplexing is performed according to the first parameter.

8. The method according to any one of claims 1 to 7, wherein: When the N ports of the SRS resource occupy multiple symbols, the sequence values ​​of the SRS resource mapped on the multiple symbols are related to the first parameter.

9. The method of claim 8, wherein: The sequence values ​​of the SRS resources mapped onto the multiple symbols are determined by a time parameter, and the time parameter includes at least one of a symbol index, a symbol period, and a number of symbols.

10. The method according to any one of claims 1 to 9, wherein: In a case where the target parameter includes the OCC sequence related parameter, the port of the SRS resource corresponds to a target OCC sequence, wherein the target OCC sequence is determined according to the OCC sequence related parameter.

11. The method of claim 10, wherein: Determining the target OCC sequence according to the OCC sequence related parameters includes at least one of the following: Different target OCC sequences correspond to different OCC sequence-related parameters; When the OCC sequence related parameters are not configured, all elements in the target OCC sequence are 1.

12. The method of claim 11, wherein: Each element in the target OCC sequence corresponds one-to-one to a symbol occupied by the SRS resource.

13. The method of claim 11, wherein: The length of the target OCC sequence is determined by at least one of the following: The number of repetitions of the SRS resource; The number of symbols occupied by the SRS resource; The number of time slots occupied by the SRS resource; A fourth parameter, the fourth parameter is a parameter other than the number of repetitions of the SRS resource, the number of symbols occupied by the SRS resource, and the number of time slots occupied by the SRS resource.

14. The method of claim 2, wherein: In the case where the target parameter includes the second parameter, the second parameter is used to determine any one of the following: The symbol interval between symbols occupied by the SRS resource; The SRS resource occupies punctured symbols between symbols.

15. The method of claim 14, wherein: In the case where the SRS resource is port mapped based on the symbol interval, the mapping method includes at least one of the following: The starting symbol position of the SRS resource when port mapping is performed is determined by the first symbol offset; In the case where the SRS resource is configured with a repetition number R, the port mapping is repeated R times based on the symbol interval, or is repeated R / X times based on the symbol interval, where R / X is an integer and X is the symbol interval.

16. The method of claim 14, wherein: The punch symbol is determined by one of the following: Bitmap indication; The starting position and punch length of the punch symbol.

17. A port mapping method for a sounding reference signal SRS resource, wherein: include: The network side device receives the SRS resource sent by the terminal; The port mapping of the SRS resource is implemented based on a target parameter, and the target parameter includes at least one of a first parameter and a second parameter, the first parameter includes a Doppler domain related parameter or an orthogonal cover code OCC sequence related parameter, and the second parameter includes a time domain related parameter.

18. The method of claim 17, wherein: In the case where the target parameter includes the first parameter, the method further includes at least one of the following: Sending a first signaling to the terminal, where the first signaling is used to indicate a third parameter, where the third parameter is associated with M of the first parameters, where M is an integer greater than or equal to 1 and less than or equal to N; Sending a second signaling to the terminal, where the second signaling is used to indicate L first parameters, where L is an integer greater than or equal to 1 and less than or equal to N; Wherein, N is the number of ports of the SRS resource.

19. The method of claim 18, wherein: The association relationship between the third parameter and the M first parameters is determined by at least one of the following: Default agreement between the network side and the terminal; Terminal reporting; Network-side configuration.

20. A port mapping device for a sounding reference signal (SRS) resource, wherein: include: A transmission module, used for sending SRS resources, wherein port mapping of the SRS resources is implemented based on target parameters; The target parameter includes at least one of a first parameter and a second parameter, the first parameter includes a Doppler domain related parameter or an orthogonal cover code OCC sequence related parameter, and the second parameter includes a time domain related parameter.

21. The device of claim 20, wherein: In a case where the target parameter includes the first parameter, the transmission module is further configured to: receiving a first signaling indicating a third parameter, where the third parameter is associated with M of the first parameters, where M is an integer greater than or equal to 1 and less than or equal to N; receiving a second signaling indicating L of the first parameters, where L is an integer greater than or equal to 1 and less than or equal to N; Wherein, N is the number of ports of the SRS resource.

22. The device of claim 21, wherein: The association relationship between the third parameter and the M first parameters is determined by at least one of the following: Default agreement between the network side and the terminal; The terminal determines it autonomously; Network-side configuration.

23. The device of claim 21, wherein: When L is an integer smaller than N, at least some of the N ports share one first parameter.

24. The device of claim 21, wherein: In the case where the N ports of the SRS resource correspond to multiple first parameters, the multiple first parameters satisfy at least one of the following: The values ​​of the plurality of the first parameters are obtained by equally dividing the predetermined value range according to the specific value; The total number of the first parameters does not exceed a predetermined value, and the predetermined value is related to at least one of the number of ports, the number of cyclic shifts, and the number of comb offsets of the SRS resources.

25. The device according to any one of claims 20 to 24, wherein: When the N ports of the SRS resource correspond to the same first parameter, the N ports are multiplexed in a first multiplexing manner; The first multiplexing method includes at least one of the following: Multiplexing according to cyclic shift; Reuse according to Comb offset; Time domain multiplexing is performed according to the symbols occupied by the SRS resources.

26. The device according to any one of claims 20 to 24, wherein: When at least some of the N ports of the SRS resource correspond to different first parameters, the N ports are multiplexed according to a second multiplexing manner; The second multiplexing mode includes at least one of the following: Multiplexing according to cyclic shift; Reuse according to Comb offset; Performing time domain multiplexing according to the symbols occupied by the SRS resources; Multiplexing is performed according to the first parameter.

27. The device according to any one of claims 20 to 26, wherein: When the N ports of the SRS resource occupy multiple symbols, the sequence values ​​of the SRS resource mapped on the multiple symbols are related to the first parameter.

28. The apparatus of claim 27, wherein: The sequence values ​​of the SRS resources mapped onto the multiple symbols are determined by a time parameter, and the time parameter includes at least one of a symbol index, a symbol period, and a number of symbols.

29. The device according to any one of claims 20 to 28, wherein: In a case where the target parameter includes the OCC sequence related parameter, the port of the SRS resource corresponds to a target OCC sequence, wherein the target OCC sequence is determined according to the OCC sequence related parameter.

30. The apparatus of claim 29, wherein: Determining the target OCC sequence according to the OCC sequence related parameters includes at least one of the following: different target OCC sequences correspond to different OCC sequence related parameters; When the OCC sequence related parameters are not configured, all elements in the target OCC sequence are 1.

31. The device of claim 30, wherein: Each element in the target OCC sequence corresponds to a symbol occupied by the SRS resource.

32. The apparatus of claim 30, wherein: The length of the target OCC sequence is determined by at least one of the following: The number of repetitions of the SRS resource; The number of symbols occupied by the SRS resource; The number of time slots occupied by the SRS resource; A fourth parameter, the fourth parameter is a parameter other than the number of repetitions of the SRS resource, the number of symbols occupied by the SRS resource, and the number of time slots occupied by the SRS resource.

33. The apparatus of claim 21, wherein: In the case where the target parameter includes the second parameter, in the process of implementing the port mapping of the SRS resource based on the target parameter, the second parameter is used to determine any one of the following: The symbol interval between symbols occupied by the SRS resource; The SRS resource occupies punctured symbols between symbols.

34. The apparatus of claim 33, wherein: In the case where the SRS resource is port mapped based on the symbol interval, the mapping method includes at least one of the following: The starting symbol position of the SRS resource when port mapping is performed is determined by the first symbol offset; In the case where the SRS resource is configured with a repetition number R, the port mapping is repeated R times based on the symbol interval, or is repeated R / X times based on the symbol interval, where R / X is an integer and X is the symbol interval.

35. The apparatus of claim 33, wherein: The punch symbol is determined by one of the following: Bitmap indication; The starting position and punch length of the punch symbol.

36. A port mapping device for a sounding reference signal (SRS) resource, wherein: include: A transmission module, used for receiving SRS resources sent by a terminal; The port mapping of the SRS resource is implemented based on a target parameter, and the target parameter includes at least one of a first parameter and a second parameter, the first parameter includes a Doppler domain related parameter or an orthogonal cover code OCC sequence related parameter, and the second parameter includes a time domain related parameter.

37. The apparatus of claim 36, wherein: In a case where the target parameter includes the first parameter, the transmission module is further configured to: Sending a first signaling to the terminal, where the first signaling is used to indicate a third parameter, where the third parameter is associated with M of the first parameters, where M is an integer greater than or equal to 1 and less than or equal to N; Sending a second signaling to the terminal, where the second signaling is used to indicate L first parameters, where L is an integer greater than or equal to 1 and less than or equal to N; Wherein, N is the number of ports of the SRS resource.

38. The apparatus of claim 37, wherein: The association relationship between the third parameter and the M first parameters is determined by at least one of the following: Default agreement between the network side and the terminal; Terminal reporting; Network-side configuration.

39. A terminal, wherein: The method comprises a processor and a memory, wherein the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, the steps of the method according to any one of claims 1 to 16 are implemented.

40. A network side device, wherein: The method comprises a processor and a memory, wherein the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, the steps of the method according to any one of claims 17 to 19 are implemented.

41. A readable storage medium, wherein: The readable storage medium stores a program or instruction, and when the program or instruction is executed by a processor, the steps of the method according to any one of claims 1 to 16 are implemented, or the steps of the method according to any one of claims 17 to 19 are implemented.

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