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

Abstract

The invention discloses a port mapping method and device of sounding reference signal (SRS) resources and a terminal, and belongs to the technical field of communication, the port mapping method of the SRS resources in the embodiment of the invention comprises the steps that the terminal sends the SRS resources, and port mapping of the SRS resources is realized based on target parameters; wherein the target parameter comprises at least one of a first parameter and a second parameter, the first parameter comprises a Doppler domain related parameter or an orthogonal cover code (OCC) sequence related parameter, and the second parameter comprises a time domain related parameter.

Description

Technical Field

[0001] 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

[0002] In the current time division duplex (TDD) system, the network side can enable the non-codebook-based physical downlink shared channel (PDSCH) transmission mode. In this transmission mode, the network side performs uplink channel estimation based on the sounding reference signal (SRS) sent by the terminal and determines the downlink precoding based on the channel reciprocity.

[0003] 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 based on SRS to avoid possible problems with 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. Summary of the invention

[0004] 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.

[0005] In a first aspect, a port mapping method for a sounding reference signal SRS resource is provided, comprising: a terminal sends 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.

[0006] In a second aspect, a port mapping device for a sounding reference signal SRS resource is provided, comprising: a transmission module, used to send SRS resources, and the port mapping of the SRS resources is implemented based on target parameters; wherein the target parameters include 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.

[0007] 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, the target parameter comprising at least one of a first parameter and a second parameter, the first parameter comprising a Doppler domain related parameter or an orthogonal cover code OCC sequence related parameter, and the second parameter comprising a time domain related parameter.

[0008] In a fourth aspect, a port mapping device for a sounding reference signal SRS resource is provided, comprising: a transmission module for receiving an SRS resource sent by a terminal; wherein the port mapping of the SRS resource is implemented based on a target parameter, the target parameter comprising at least one of a first parameter and a second parameter, the first parameter comprising a Doppler domain related parameter or an orthogonal cover code OCC sequence related parameter, and the second parameter comprising a time domain related parameter.

[0009] 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.

[0010] In a sixth aspect, a terminal is provided, comprising a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run a program or instruction to implement the steps of the method described in the first aspect.

[0011] In the seventh aspect, a network side device is provided, which terminal includes a processor and a memory, 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 third aspect are implemented.

[0012] In an eighth aspect, a network side device is provided, comprising a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run a program or instruction to implement the steps of the method described in the third aspect.

[0013] 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.

[0014] In the tenth aspect, a wireless communication system is provided, including: 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.

[0015] In the eleventh aspect, a chip is provided, comprising a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run a program or instruction to implement the steps of the method described in the first aspect or the third aspect.

[0016] 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.

[0017] 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

[0018] Figure 1 It is a structural diagram of a wireless communication system provided by an exemplary embodiment of the present application.

[0019] Figure 2 This is one of the flow charts of the port mapping method of SRS resources provided by an exemplary embodiment of the present application.

[0020] Figure 3 This is the second flowchart of the port mapping method of SRS resources provided by an exemplary embodiment of the present application.

[0021] Figure 4a This is one of the port mapping schematic diagrams provided by an exemplary embodiment of the present application.

[0022] Figure 4b This is the second port mapping schematic diagram provided by an exemplary embodiment of the present application.

[0023] Figure 4c This is the third port mapping diagram provided by an exemplary embodiment of the present application.

[0024] Figure 4d This is the fourth port mapping diagram provided by an exemplary embodiment of the present application.

[0025] Figure 4e This is the fourth port mapping diagram provided by an exemplary embodiment of the present application.

[0026] Figure 5 This is the third flowchart of the port mapping method of SRS resources provided by an exemplary embodiment of the present application.

[0027] Figure 6 This is one of the structural schematic diagrams of a port mapping device for SRS resources provided by an exemplary embodiment of the present application.

[0028] Figure 7 This is the second structural diagram of the port mapping device of the SRS resource provided by an exemplary embodiment of the present application.

[0029] Figure 8 It is a structural diagram of a communication device provided by an exemplary embodiment of the present application.

[0030] Fig. 9 It is a schematic diagram of the structure of a terminal provided by an exemplary embodiment of the present application.

[0031] Fig.10 It is a structural diagram of a network side device provided by an exemplary embodiment of the present application. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of this application.

[0033] The terms "first", "second", etc. of the present 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 one type, and the number of objects is not limited, for example, the first object can be one or more. In addition, "or" in the present application represents at least one of the connected objects. For example, "A or B" covers three schemes, namely, Scheme 1: including A but not including B; Scheme 2: including B but not including A; Scheme 3: including both A and B. The character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0034] The term "indication" in this application can be 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, operations to be performed, or request results in the sent indication; an indirect indication can be understood as the receiver determining the corresponding information according to the indication sent by the sender, or making a judgment and determining the operation to be performed or the request result according to the judgment result.

[0035] 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 described technology 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 descriptions, but these technologies can also be applied to systems other than NR systems, such as the 6th generation (6 th Generation, 6G) communication system.

[0036] Figure 1A block diagram of a wireless communication system applicable to an embodiment of the present application is shown. The wireless communication system includes a terminal 11 and a network side device 12. Among them, the terminal 11 can be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer), a notebook computer, a personal digital assistant (Personal Digital Assistant, PDA), a handheld computer, a netbook, an ultra-mobile personal computer (Ultra-mobile Personal Computer, UMPC), a mobile Internet device (Mobile Internet Device, MID), an augmented reality (Augmented Reality, AR), a virtual reality (Virtual Reality, VR) device, a robot, a wearable device (Wearable Device), an aircraft (flight vehicle), a vehicle-mounted device (Vehicle User Equipment, VUE), a ship-mounted device, a pedestrian terminal (Pedestrian User Equipment, PUE), a smart home (home appliances with wireless communication functions, such as refrigerators, televisions, washing machines or furniture, etc.), a game console, a personal computer (Personal Computer, PC), a teller machine or a self-service machine and 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 referred to as 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 (Wireless Local Area Network, WLAN) access point (Access Point, AS) or a wireless fidelity (Wireless Fidelity, WiFi) node, etc.Among them, the base station may be referred to as a Node B (NB), an evolved Node B (eNB), a next generation Node B (gNB), a New Radio Node B (NR Node B), an access point, a Relay Base Station (RBS), a Serving Base Station (SBS), a Base Transceiver Station (BTS), a radio base station, a radio transceiver, a Basic Service Set (BSS), an Extended Service Set (ESS), a Home Node B (HNB), a Home Evolved Node B, a 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 terms. It should be noted that in the embodiments 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.

[0037] The technical solution provided by the embodiments of the present application is described in detail below through some embodiments and their application scenarios in combination with the accompanying drawings.

[0038] like Figure 2 As shown, it is a flow chart of a port mapping method 200 of SRS resources provided by an exemplary embodiment of the present application, and the method 200 can be, but is not limited to, executed by a terminal, and can be specifically executed by hardware or software installed in the terminal. In this embodiment, the method 200 can at least include the following steps.

[0039] S210, the terminal sends SRS resources.

[0040] The SRS resources may be used for but not limited to channel estimation on the network side, etc. 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 multiplexing and increase SRS capacity.

[0041] 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, and there is no limitation on this.

[0042] Wherein, the first parameter may include Doppler domain related parameters or orthogonal cover code (OrthogonalCover Code, OCC) sequence related parameters. It can be understood that the Doppler domain is a domain corresponding to the discrete Fourier transform (Discrete Fourier Transform, DFT) of the time domain. Based on this, in this embodiment, the Doppler domain related parameters may include but are not limited to Doppler domain cyclic shift parameters, Doppler domain frequency offset parameters, Doppler domain phase parameters, etc.

[0043] 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 may be understood as having an equivalent relationship, such as different related parameters in the Doppler domain corresponding to different TD-OCC sequences in the time domain.

[0044] 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 improving the SRS capacity of the communication system.

[0045] The second parameter includes time domain related parameters, such as the symbol interval, puncturing symbols, etc. when the SRS resources are port mapped. It can be understood that in this embodiment, port mapping of SRS resources is performed based on 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.

[0046] It is worth noting that, when performing port mapping based on the aforementioned target parameters, this embodiment can realize port multiplexing in a single SRS resource or port multiplexing between multiple SRS resources according to different target parameters, which is not limited here.

[0047] 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 in the entire communication system.

[0048] like Figure 3 As shown, it is a flow chart of a port mapping method 300 of SRS resources provided by an exemplary embodiment of the present application, and the method 300 can be, but is not limited to, executed by a terminal, and can be specifically executed by hardware or software installed in the terminal. In this embodiment, the method 300 can at least include the following steps.

[0049] S310, the terminal sends an SRS resource, and the port mapping of the SRS resource is implemented based on a target parameter.

[0050] 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.

[0051] It can be understood that, in addition to referring to the relevant description in the aforementioned method embodiment 200, as a possible implementation manner, for different target parameters, the port mapping of the SRS resource is different. The following describes different target parameters respectively.

[0052] In the case where the target parameter includes the first parameter (such as a Doppler domain related parameter and an OCC sequence related parameter), the configuration method of the first parameter may include at least one of the following method 1 and method 2.

[0053] Mode 1: The terminal receives a first signaling, the first signaling indicates a third parameter, the third parameter is associated with M of the first parameters, 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. That is, in this mode 1, the third parameter can be used to implicitly indicate the first parameter, so that the first parameter can be indicated while saving signaling.

[0054] The first signaling may be, but is not limited to, Radio Resource Control (RRC) signaling, etc.

[0055] 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).

[0056] (11) Default agreement between the network and the terminal (also known as negotiated agreement).

[0057] For example, assuming that the SRS resource has N=8 ports and the first parameter is a Doppler domain related parameter, then:

[0058] When the third parameter is the value A, it can be agreed by default that the third parameter has an associated relationship with the two Doppler domain related parameters d1 and d2. In this case, some of the 8 ports correspond to the Doppler domain parameter d1, and some of the ports correspond to the Doppler domain related parameter d2. For example, 4 of the 8 ports correspond to the Doppler domain parameter d1, and the other 4 ports correspond to the Doppler domain related parameter d2.

[0059] When the third parameter is a B value, it can be agreed by default that the third parameter has an associated relationship with two Doppler domain related parameters d3 and d4. In this case, some of the 8 ports correspond to the Doppler domain parameter d3, and some of the ports correspond to the Doppler domain related parameter d4. For example, 4 of the 8 ports correspond to the Doppler domain related parameter d3, and the other 4 ports correspond to the Doppler domain related parameter d4.

[0060] And so on.

[0061] (12) Determined autonomously by the terminal.

[0062] For example, assuming that the SRS resource has N=8 ports and the first parameter is a Doppler domain related parameter, the terminal can autonomously determine that the third parameter with a value of A is associated with two Doppler domain parameters d1 and d2, and the third parameter with a value of B is associated with 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.

[0063] (13) Network side configuration.

[0064] 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 limitation is made here.

[0065] Method 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.

[0066] 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.

[0067] 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.

[0068] 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.

[0069] 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.

[0070] (21) The values ​​of the multiple first parameters are obtained by equally dividing the predetermined value range according to a specific value, that is, the values ​​of the multiple first parameters are equally spaced.

[0071] For example, assuming that the SRS resource has N=8 SRS ports and is associated with 4 Doppler domain related parameters d1, d2, d3, d4, then the values ​​of the Doppler domain related parameters d1, d2, d3, d4 are equally spaced.

[0072] Based on this, when performing port mapping of SRS resources, port #0 and port #1 correspond to Doppler domain related parameter d1, port #2 and port #3 correspond to Doppler domain parameter d2, port #4 and port #5 correspond to Doppler domain parameter d3, and port #6 and port #7 correspond to Doppler domain parameter d4.

[0073] (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 resources.

[0074] For example, it is assumed that the SRS resource has N=8 ports, and the comb structure of the SRS is configured as Comb 2. At this time, port #0 and port #1 are multiplexed based on Cyclic shift #1 and Cyclic shift #2 respectively and mapped to the Comb offset #1 position, port #2 and port #3 are multiplexed based on Cyclic shift #1 and Cyclic shift #2 respectively and mapped to the Comb offset #2 position, port #4 and port #5 are multiplexed based on Cyclic shift #1 and Cyclic shift #2 respectively and mapped to the Comb offset #1 position, port #6 and port #7 are multiplexed based on Cyclic shift #1 and Cyclic shift #2 respectively and mapped to the Comb offset #2 position. In this case, in order to realize the multiplexing of 8 ports, the total number of the first parameters can be 2, that is, corresponding to the Doppler domain related parameters d1 and d2. At this time, ports #0, #1, #2, and #3 correspond to Doppler domain related parameters d1, and ports #4, #5, #6, and #7 correspond to Doppler domain related parameters d2. In other words, the total number of the first parameter needs to be inferred or determined in combination with the Cyclic shift number and the Comb offset number used for port multiplexing of the SRS resource, so as to meet the multiplexing of all ports of the SRS resource.

[0075] 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.

[0076] For example, when the N ports of the SRS resource correspond to the same first parameter, the N ports may be multiplexed in a first multiplexing manner, wherein the first multiplexing manner includes at least one of the following (31)-(33), thereby ensuring orthogonality of port multiplexing.

[0077] (31) Multiplexing is performed according to cyclic shift, i.e. code division multiplexing (CDM).

[0078] (32) Multiplexing is performed according to the comb offset, i.e. frequency-division multiplexing (FDM).

[0079] (33) Time domain multiplexing is performed according to the symbols occupied by the SRS resources, namely, time division multiplexing (TDM).

[0080] 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.

[0081] (41) Multiplexing is performed according to cyclic shift, i.e., CDM.

[0082] (42) Multiplexing is performed according to the comb offset, i.e., FDM.

[0083] It can be understood that the Cyclic shift and Comb offset mentioned in (41)-(42) above are frequency domain parameters.

[0084] (43) Time domain multiplexing, i.e., TDM, is performed according to the symbols occupied by the SRS resources.

[0085] (44) Multiplexing is performed according to the first parameters (i.e., the aforementioned Doppler domain related parameters and OCC sequence related parameters).

[0086] In one implementation, 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 (i.e., Doppler domain related parameters, OCC sequence related parameters). The sequence values ​​of the SRS resource mapped on 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 on the multiple symbols can be determined by a time parameter.

[0087] For example, the sequence values ​​of the SRS resources mapped on the multiple symbols may be determined according to a function including Doppler domain related parameters and time parameters as independent variables, such as the sequence values ​​of the SRS resources mapped on 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 symbol number, that is, the phase of the sequence values ​​of the SRS resources on different symbols rotates with the time parameter.

[0088] 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 an implementation method, when the target OCC sequence is determined according to the OCC sequence related parameters, the port 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 is not limited here.

[0089] 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).

[0090] (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).

[0091] (52) When the OCC sequence related parameters are not configured, all elements in the target OCC sequence are 1.

[0092] In one implementation, each element in the target OCC sequence corresponds one-to-one to a symbol occupied by the SRS resource (ie, a TD-OOC sequence).

[0093] 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).

[0094] (61) The number of repetitions of the SRS resource.

[0095] 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.).

[0096] (62) The number of symbols occupied by the SRS resource.

[0097] (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.

[0098] In the case of one SRS resource, the one SRS resource occupies multiple consecutive time slots.

[0099] 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, the multiple SRS resources have a binding relationship.

[0100] (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, that is, the length of the target OCC sequence may be different from the number of repetitions of the SRS resource or the length of the occupied symbols of 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.

[0101] Optionally, the fourth parameter may be configured through but not limited to RRC signaling.

[0102] 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.

[0103] 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).

[0104] (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.

[0105] In this embodiment, the symbol interval may be a value of 0 to 13.

[0106] 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).

[0107] (a) The starting symbol position of the SRS resource when port mapping is performed is determined by the first symbol offset.

[0108] 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, according to the first symbol offset offset, the final starting symbol position is determined to be P1+offset.

[0109] Among them, the first symbol offset is determined by protocol agreement, network side configuration or terminal configuration, and is not limited here.

[0110] (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.

[0111] 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.

[0112] (52) The puncturing symbols between the symbols occupied by the SRS resources can also be understood as a rate matching pattern. Thus, through the configuration of the puncturing symbols, port multiplexing of multiple different SRS resources can be achieved to improve the SRS capacity in the entire communication system.

[0113] The punch symbol is determined by one of the following (a)-(b).

[0114] (a) Bitmap indication.

[0115] (b) The starting position and punch length of the punch symbol.

[0116] 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.

[0117] 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 in the entire communication system.

[0118] 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 the present application is exemplarily described step by step in conjunction with examples, as follows.

[0119] Example 1

[0120] 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 transform on the time domain. Then:

[0121] (1) Figure 4a As shown, assuming an SRS resource with 8 ports, port #0 and port #1 correspond to the same Doppler domain parameter, mapped at the fd1 position of the Doppler domain, port #2 and port #3 correspond to the same Doppler domain parameter, mapped at the fd2 position of the Doppler domain, port #4 and port #5 correspond to the same Doppler domain parameter, mapped at the fd3 position of the Doppler domain, port #6 and port #7 correspond to the same Doppler domain parameter, mapped at the fd4 position of the Doppler domain. In addition, port #0, port #2, port #4, and port #6 correspond to the same cyclic shift value, mapped at the delay τ1 position, and port #1, port #3, port #5, and port #6 correspond to the same cyclic shift value, mapped at the delay τ2 position, thereby realizing the multiplexing of 8 ports.

[0122] (2) Please refer to Figure 4a , assuming 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 at the fd1 position in the Doppler domain and the delays τ1 and τ2 positions; SRS resource #2 includes ports #2 and port #3, corresponding to a Doppler domain parameter and 2 frequency domain cyclic shift values, mapped at the fd2 position in the Doppler domain and the delays τ1 and τ2 positions; SRS resource #3 includes ports #4 and #5, corresponding to the same Doppler domain parameter and 2 frequency domain cyclic shift values, mapped at the fd3 position in the Doppler domain and the delays τ1 and τ2 positions; SRS resource #4 ports #6 and #7 correspond to the same Doppler domain parameter and 2 cyclic shift values, mapped at the fd4 position in the Doppler domain and the delays τ1 and τ2 positions, thereby realizing the multiplexing of 8 ports.

[0123] In addition, 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 also be understood that the SRS port is multiplexed based on the TD-OCC sequence in the time domain through the configuration of Doppler domain related parameters. Among them, different TD-OCC sequences correspond to different Doppler domain related parameters, such as Doppler domain frequency offset.

[0124] Example 2

[0125] Assuming that the number of repetitions of the SRS resource is 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 by the time domain related parameters, and the first symbol offset is 0, the port mapping result of the SRS resource implemented based on the time domain related parameters is as follows Figure 4b If the symbol interval X is determined to be 2 symbols by the time domain related parameters, and the first symbol offset is 1, the port mapping result of the SRS resource implemented based on the time domain related parameters is as follows: Figure 4c as shown.

[0126] Example 3

[0127] Assume that multiple ports of SRS resources are mapped to 2 symbols, such as 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 as follows: Figure 4d shown.

[0128] Example 4

[0129] 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. Figure 4e As shown, it can be indicated by bitmap 11000110001100, where each bit corresponds to a symbol.

[0130] It can be understood that the port mapping method of the aforementioned SRS resources provided in the present application may include but is not limited to those shown in Examples 1 to 4.

[0131] like Figure 5 As shown, it is a flow chart of a port mapping method 500 of SRS resources provided by an exemplary embodiment of the present application, and the method 500 can be, but is not limited to, executed by a network side device, and specifically can be executed by hardware or software installed in the network side device. In this embodiment, the method 500 can at least include the following steps.

[0132] S510: A network-side device receives an SRS resource sent by a terminal.

[0133] 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.

[0134] Optionally, when 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 first parameters, where M is an integer greater than or equal to 1 and less than or equal to N;

[0135] Sending a second signaling to the terminal, where the second signaling is used to indicate 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.

[0136] Optionally, the association relationship between the third parameter and M first parameters is determined by at least one of the following: a default agreement between the network side and the terminal; a terminal report; or a network side configuration.

[0137] 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.

[0138] The port mapping method for SRS resources provided in the embodiment of the present application can be executed by a port mapping method device for SRS resources. In the embodiment of the present application, the port mapping method for SRS resources performed by a port mapping device for SRS resources is taken as an example to illustrate the port mapping method for SRS resources provided in the embodiment of the present application.

[0139] like Figure 6 As shown, 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, which is used to send SRS resources, and the port mapping of the SRS resources is implemented based on target parameters; wherein the target parameters include 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.

[0140] 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 of the 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 of the 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 resources.

[0141] Optionally, the association relationship between the third parameter and 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.

[0142] Optionally, when L is an integer less than N, at least some of the N ports share one first parameter.

[0143] 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 a predetermined value range according to a specific value; 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.

[0144] 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 Cyclicshift; multiplexing according to Comb offset; time domain multiplexing according to the symbols occupied by the SRS resource.

[0145] 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 resources; multiplexing according to the first parameter.

[0146] 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.

[0147] 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 a number of symbols.

[0148] Optionally, 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.

[0149] 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.

[0150] Optionally, each element in the target OCC sequence corresponds one-to-one to a symbol occupied by the SRS resource.

[0151] Optionally, the length of the target OCC sequence is determined by at least one of: 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.

[0152] 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 symbols occupied by the SRS resource; the puncturing symbols between symbols occupied by the SRS resource.

[0153] 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 of the SRS resource when port mapping is performed is determined by a 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.

[0154] 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.

[0155] The port mapping device 600 of the SRS resource 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. Exemplarily, the terminal can include but is not limited to the types of the terminal 11 listed above, and other devices can be servers, network attached storage (Network Attached Storage, NAS), etc., which are not specifically limited in the embodiment of the present application.

[0156] The port mapping device of the SRS resource provided in the embodiment of the present application can realize Figures 2 to 3The various processes implemented by the method embodiment and achieving the same technical effect are not described here to avoid repetition.

[0157] like Figure 7 As shown, it is a structural schematic 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.

[0158] 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 resources.

[0159] Optionally, the association relationship between the third parameter and M first parameters is determined by at least one of the following: a default agreement between the network side and the terminal; a terminal report; or a network side configuration.

[0160] The port mapping device 700 of the SRS resource 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 other devices other than the network side device. Exemplarily, 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 (Network Attached Storage, NAS), etc., which are not specifically limited in the embodiment of the present application.

[0161] The port mapping device of the SRS resource provided in the embodiment of the present application can realize Figure 5 The various processes implemented by the method embodiment and achieving the same technical effect are not described here to avoid repetition.

[0162] like Figure 8As shown, the embodiment of the present application also provides a communication device 800, including a processor 801 and a memory 802, and 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.

[0163] The embodiment of the present application also provides a terminal, including a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run a program or instruction to implement the following Figure 2-Figure 3 The steps in the method embodiment shown. This terminal embodiment corresponds to the above-mentioned terminal side method embodiment, and each implementation process and implementation method of the above-mentioned method embodiment can be applied to this terminal embodiment and can achieve the same technical effect. Specifically, Figure 7 A schematic diagram of the hardware structure of a terminal for implementing an embodiment of the present application.

[0164] 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 a processor 910.

[0165] Those skilled in the art will appreciate that the terminal 900 may also include a power source (such as a battery) for supplying power to various components, and the power source may be logically connected to the processor 910 through a power management system, thereby implementing functions such as managing charging, discharging, and power consumption management through the power management system. Fig. 9 The terminal structure shown in the figure does not constitute a limitation on the terminal. The terminal may include more or fewer components than shown in the figure, or combine certain components, or arrange the components differently, which will not be described in detail here.

[0166] It should be understood that in the 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 a joystick, which will not be repeated here.

[0167] In the embodiment of the present application, after receiving downlink data from the network side device, the RF unit 901 can transmit the data to the processor 910 for processing; in addition, the RF unit 901 can send uplink data to the network side device. Generally, the RF unit 901 includes but is not limited to an antenna, an amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, etc.

[0168] 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, wherein the first storage area may store an operating system, an application program or instruction required for at least one function (such as a sound playback function, an image playback function, etc.), etc. In addition, the memory 909 may include a volatile memory or a non-volatile memory. Among them, 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. The volatile memory may be a random access memory (RAM), a static random access memory (SRAM), a dynamic random access memory (DRAM), a synchronous dynamic random access memory (SDRAM), a double data rate synchronous dynamic random access memory (DDRSDRAM), an enhanced synchronous dynamic random access memory (ESDRAM), a synchronous link dynamic random access memory (SLDRAM) and a direct memory 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.

[0169] The processor 910 may include one or more processing units; optionally, the processor 910 integrates an application processor and a modem processor, wherein the application processor mainly processes operations related to an operating system, a user interface, and application programs, and the modem processor mainly processes wireless communication signals, such as a baseband processor. It is understandable that the modem processor may not be integrated into the processor 910.

[0170] 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 Doppler domain related parameters or orthogonal cover code OCC sequence related parameters, and the second parameter includes time domain related parameters.

[0171] 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 of the 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 of the 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 resources.

[0172] Optionally, the association relationship between the third parameter and 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.

[0173] Optionally, when L is an integer less than N, at least some of the N ports share one first parameter.

[0174] 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 a predetermined value range according to a specific value; 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.

[0175] 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 Cyclicshift; multiplexing according to Comb offset; time domain multiplexing according to the symbols occupied by the SRS resource.

[0176] 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 resources; multiplexing according to the first parameter.

[0177] 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.

[0178] 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 a number of symbols.

[0179] Optionally, 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.

[0180] 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.

[0181] Optionally, each element in the target OCC sequence corresponds one-to-one to a symbol occupied by the SRS resource.

[0182] Optionally, the length of the target OCC sequence is determined by at least one of: 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.

[0183] 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 symbols occupied by the SRS resource; the puncturing symbols between symbols occupied by the SRS resource.

[0184] 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 of the SRS resource when port mapping is performed is determined by a 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.

[0185] 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.

[0186] 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 repeated here.

[0187] The embodiment of 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 used to run a program or instruction to implement the following Figure 5 The steps of the method embodiment shown. This network side device embodiment corresponds to the above network side device method embodiment, and each implementation process and implementation mode of the above method embodiment can be applied to this network side device embodiment and can achieve the same technical effect.

[0188] Specifically, the embodiment of the present application also provides a network side device. Fig.10 As shown, the network side device 1000 includes: an antenna 1001, a radio frequency device 1002, a baseband device 1003, a processor 1004 and a memory 1005. The antenna 1001 is connected to the radio frequency device 1002. In the uplink direction, the radio frequency device 1002 receives information through the antenna 1001 and sends the received information to the baseband device 1003 for processing. In the downlink direction, the baseband device 1003 processes the information to be sent and sends it to the radio frequency device 1002. The radio frequency device 1002 processes the received information and sends it out through the antenna 1001.

[0189] 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.

[0190] The baseband device 1003 may include, for example, at least one baseband board on which a plurality of chips are arranged. Fig.10 As shown, one of the chips 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 to execute the network device operations shown in the above method embodiment.

[0191] The network side device may further include a network interface 1006, which is, for example, a Common Public Radio Interface (CPRI).

[0192] Specifically, the network side device 1000 of the embodiment of the present application further includes: instructions or programs stored in the memory 1005 and executable on the processor 1004, and the processor 1004 calls the instructions or programs in the memory 1005 to execute Figure 7 The methods executed by the modules shown achieve the same technical effects, and therefore will not be described here in detail to avoid repetition.

[0193] 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, each process of the above-mentioned SRS resource port mapping method embodiment is implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0194] 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-transient readable storage medium.

[0195] 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.

[0196] 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.

[0197] An embodiment of the present application further provides a computer program / program product, which is stored in a storage medium, and 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.

[0198] 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.

[0199] It should be noted that, in this article, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including 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 one..." does not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the method and device in the embodiment 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 reverse 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.

[0200] Through the description of the above implementation methods, 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 hardware platform, and of course, can also be implemented by hardware. The computer software product is stored in a storage medium (such as ROM, RAM, disk, CD, etc.), including several instructions to enable a terminal or a network-side device to execute the methods described in each embodiment of the present application.

[0201] 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 the present application, ordinary technicians in this field can also make many forms of implementation methods without departing from the purpose of the present application and the scope of protection of the claims, and these implementation methods are all within the protection of the present application.

Claims

1. A port mapping method for a sounding reference signal SRS resource, characterized in that: 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 according to claim 1, characterized in that 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 according to claim 2, characterized in that 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 according to claim 2, characterized in that When L is an integer smaller than N, at least some of the N ports share one first parameter.

5. The method according to claim 2, characterized in that 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, characterized in that 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, characterized in that 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, characterized in that 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 according to claim 8, characterized in that 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, characterized in that 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 according to claim 10, characterized in that 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 according to claim 11, characterized in that Each element in the target OCC sequence corresponds one-to-one to a symbol occupied by the SRS resource.

13. The method according to claim 11, characterized in that 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 according to claim 2, characterized in that 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 according to claim 14, characterized in that 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 according to claim 14, characterized in that 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, characterized in that: 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 according to claim 17, characterized in that 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 according to claim 18, characterized in that 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, characterized in that: 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 according to claim 20, characterized in that 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 according to claim 21, characterized in that 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 according to claim 21, characterized in that When L is an integer smaller than N, at least some of the N ports share one first parameter.

24. The device according to claim 21, characterized in that 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, characterized in that 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, characterized in that 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, characterized in that 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 device according to claim 27, characterized in that 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, characterized in that 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 device according to claim 29, characterized in that 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 according to claim 30, characterized in that Each element in the target OCC sequence corresponds one-to-one to a symbol occupied by the SRS resource.

32. The device according to claim 30, characterized in that 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 device according to claim 21, characterized in that 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 device according to claim 33, characterized in that 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 device according to claim 33, characterized in that 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, characterized in that: 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 device according to claim 36, characterized in that 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 device according to claim 37, characterized in that 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, characterized in that: 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, characterized in that: 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, characterized in that: 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.

Images