Reference signal resource mapping method and apparatus, terminal and network device

Abstract

The embodiment of the application discloses a resource mapping method and device of a reference signal, a terminal and a network device; the method comprises the following steps: a network device sends configuration information; a terminal acquires the configuration information; the terminal determines a first transmission comb offset corresponding to each of L sounding reference signal (SRS) antenna ports of SRS resource according to the configuration information, and the first transmission comb offset is used for determining a frequency domain starting position corresponding to each of the L SRS antenna ports, and the value of L is an integer greater than 4. Since the network device can send the configuration information to the terminal, the terminal can determine the first transmission comb offset corresponding to each of the L (L>4) SRS antenna ports of the SRS resource according to the configuration information, thereby determining the frequency domain starting position corresponding to each of the L SRS antenna ports through the first transmission comb offset to realize SRS resource mapping and SRS resource pattern.

Description

Technical Field

[0001] This application relates to the field of communication technology, and in particular to a method and apparatus for resource mapping of reference signals, a terminal, and a network device. Background Technology

[0002] In the new radio (NR) of the 3rd Generation Partnership Project (3GPP), terminals can send sounding reference signals (SRS) to network devices so that network devices can perform resource scheduling, link adaptation, beam management, and power control based on the SRS.

[0003] Currently, in NR R15 / R16 / R17, the number of SRS antenna ports included in an SRS resource is 1, 2, or 4, meaning the maximum number of SRS antenna ports included in an SRS resource is 4. However, when the maximum number of SRS antenna ports included in an SRS resource exceeds 4, existing standard protocols do not have a specific solution for determining the SRS resource mapping and the SRS resource pattern. Summary of the Invention

[0004] This application provides a method, apparatus, terminal, and network device for resource mapping of reference signals, aiming to configure the transmission comb offsets corresponding to each of the L (L>4) SRS antenna ports of SRS resources through the network, namely the first transmission comb offset, so as to determine the frequency domain start position corresponding to each of the L SRS antenna ports through the first transmission comb offset to realize SRS resource mapping and SRS resource pattern.

[0005] A first aspect is a resource mapping method for a reference signal, according to an embodiment of this application, comprising:

[0006] Get configuration information;

[0007] Based on the configuration information, the first transmission comb offset corresponding to each of the L SRS antenna ports of the probe reference signal (SRS) resource is determined. The first transmission comb offset is used to determine the frequency domain start position corresponding to each of the L SRS antenna ports, and the value of L is an integer greater than 4.

[0008] Secondly, a resource mapping method for a reference signal, as described in an embodiment of this application, includes:

[0009] Send configuration information, which is used to determine the first transmission comb offset corresponding to each of the L SRS antenna ports of the sounding reference signal (SRS) resource. The first transmission comb offset is used to determine the frequency domain start position corresponding to each of the L SRS antenna ports, where L is an integer greater than 4.

[0010] As can be seen, in this embodiment of the application, since the network device can send configuration information to the terminal, the terminal can determine the transmission comb offset corresponding to each of the L (L>4) SRS antenna ports of the SRS resource according to the configuration information, that is, the first transmission comb offset, and thus determine the frequency domain start position corresponding to each of the L SRS antenna ports through the first transmission comb offset to realize SRS resource mapping and SRS resource pattern.

[0011] Thirdly, a resource mapping apparatus for a reference signal according to an embodiment of this application includes:

[0012] The acquisition unit is used to acquire configuration information;

[0013] The determining unit is used to determine the first transmission comb offset corresponding to each of the L SRS antenna ports of the probe reference signal (SRS) resource. The first transmission comb offset is used to determine the frequency domain start position corresponding to each of the L SRS antenna ports, and the value of L is an integer greater than 4.

[0014] Fourthly, a resource mapping apparatus for a reference signal according to an embodiment of this application includes:

[0015] The transmitting unit is used to transmit configuration information, which is used to determine the first transmission comb offset corresponding to each of the L SRS antenna ports of the sounding reference signal (SRS) resource. The first transmission comb offset is used to determine the frequency domain start position corresponding to each of the L SRS antenna ports, where L is an integer greater than 4.

[0016] Fifthly, the steps in the method designed in the first aspect above are applied to the terminal.

[0017] Sixthly, the steps in the method designed in the second aspect above are applied to network devices.

[0018] A seventh aspect is a terminal according to an embodiment of this application, including a processor, a memory, and a computer program or instructions stored in the memory, wherein the processor executes the computer program or instructions to implement the steps in the method designed in the first aspect above.

[0019] Eighthly, a network device according to an embodiment of this application includes a processor, a memory, and a computer program or instructions stored in the memory, wherein the processor executes the computer program or instructions to implement the steps in the method designed in the second aspect above.

[0020] A ninth aspect is a chip according to this application, comprising a processor, wherein the processor performs the steps of the method designed in the first or second aspect described above.

[0021] A tenth aspect is a chip module according to this application, including a transceiver component and a chip, wherein the chip includes a processor, and the processor performs the steps in the method designed in the first or second aspect described above.

[0022] Eleventhly, there is a computer-readable storage medium of this application, wherein a computer program or instructions are stored thereon, which, when executed, implement the steps in the method designed in the first or second aspect described above.

[0023] The twelfth aspect is a computer program product of this application, comprising a computer program or instructions, wherein when the computer program or instructions are executed, they implement the steps in the method designed in the first or second aspect described above. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the embodiments of this application will be briefly introduced below.

[0025] Figure 1 This is a schematic diagram of the architecture of a wireless communication system according to an embodiment of this application;

[0026] Figure 2 This is a flowchart illustrating a resource mapping method for a reference signal according to an embodiment of this application;

[0027] Figure 3 This is a functional unit block diagram of a reference signal resource mapping device according to an embodiment of this application;

[0028] Figure 4 This is a functional unit block diagram of another reference signal resource mapping device according to an embodiment of this application;

[0029] Figure 5 This is a schematic diagram of the structure of a terminal according to an embodiment of this application;

[0030] Figure 6 This is a schematic diagram of the structure of a network device according to an embodiment of this application. Detailed Implementation

[0031] To help those skilled in the art better understand the technical solutions of this application, the technical solutions in the embodiments of this application are described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art without creative effort regarding the embodiments of this application are within the scope of protection of this application.

[0032] The terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, software, product, or apparatus that includes a series of steps or units is not limited to the listed steps or units, but also includes steps or units not listed, or other steps or units inherent to such processes, methods, products, or apparatus.

[0033] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0034] It should be noted that the term "connection" in this application embodiment refers to various connection methods, such as direct connection or indirect connection, to achieve communication between devices, and is not limited in any way. The terms "network" and "system" in this application embodiment refer to the same concept; a communication system is a communication network.

[0035] The technical solutions of this application embodiment can be applied to various wireless communication systems, such as: Global System for Mobile communication (GSM) system, Code Division Multiple Access (CDMA) system, Wideband Code Division Multiple Access (WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, Advanced Long Term Evolution (LTE-A) system, New Radio (NR) system, evolution of NR system, LTE-based Access to Unlicensed Spectrum (LTE-U) system, NR-based Access to Unlicensed Spectrum (NR-U) system, Non-Terrestrial Networks (NTN) system, Universal Mobile Telecommunication System (UMTS), and Wireless Local Area Network (WLAN). Networks, WLAN, Wireless Fidelity (WiFi), 6th-Generation (6G) communication systems, or other communication systems, etc.

[0036] It should be noted that traditional wireless communication systems support a limited number of connections and are easy to implement. However, with the development of communication technology, wireless communication systems can support not only traditional wireless communication systems, but also communication such as device-to-device (D2D), machine-to-machine (M2M), machine-type communication (MTC), vehicle-to-vehicle (V2V), vehicle-to-everything (V2X), and narrowband internet of things (NB-IoT). Therefore, the technical solutions of the embodiments in this application can also be applied to the above-mentioned wireless communication systems.

[0037] Optionally, the wireless communication system of this application embodiment can be applied to beamforming, carrier aggregation (CA), dual connectivity (DC), or standalone (SA) deployment scenarios.

[0038] Optionally, the wireless communication system of this embodiment can be applied to unlicensed spectrum. Unlicensed spectrum can also be considered as shared spectrum. Alternatively, the wireless communication system of this embodiment can also be applied to licensed spectrum. Licensed spectrum can also be considered as non-shared spectrum.

[0039] Since the embodiments of this application may be described in conjunction with terminals and network devices, the terminals and network devices involved will be described in detail below.

[0040] Specifically, a terminal can be user equipment (UE), a remote UE, a relay UE, an access terminal, a user unit, a user station, a mobile station, a mobile station, a remote station, a mobile device, a user terminal, a smart terminal, a wireless communication device, a user agent, or a user device. It should be noted that a relay device is a terminal capable of providing relay forwarding services to other terminals (including remote terminals). Additionally, a terminal can also be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, an in-vehicle device, a wearable device, a terminal in a next-generation communication system (such as an NR communication system), or a terminal in a future public land mobile network (PLMN), etc., without specific limitations.

[0041] Furthermore, the terminals can be deployed on land, including indoors or outdoors, handheld, wearable, or vehicle-mounted; they can be deployed on water (such as ships); and they can also be deployed in the air (such as airplanes, balloons, and satellites).

[0042] Furthermore, the terminal can be a mobile phone, a tablet computer, a computer with wireless transceiver capabilities, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in autonomous driving, a wireless terminal device in remote medical care, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, or a wireless terminal device in a smart home, etc.

[0043] Furthermore, the terminal may include a device with transceiver capabilities, such as a chip system. The chip system may include chips, and may also include other discrete components.

[0044] Specifically, network equipment can be devices used for communication with terminals, responsible for radio resource management (RRM), quality of service (QoS) management, data compression and encryption, and data transmission and reception on the air interface side. Network equipment can be a base station (BS) in a communication system or a device deployed in a radio access network (RAN) to provide wireless communication functions. Examples include base stations (BTS) in GSM or CDMA communication systems, node Bs (NBs) in WCDMA communication systems, evolved node Bs (eNBs or eNodeBs) in LTE communication systems, next-generation evolved node Bs (ng-eNBs) in NR communication systems, next-generation node Bs (gNBs) in NR communication systems, master nodes (MNs) in dual-link architectures, and secondary nodes (SNs) in dual-link architectures, without specific limitations.

[0045] Furthermore, network devices can also be other devices in the core network (CN), such as access and mobility management function (AMF), user plan function (UPF), etc.; they can also be access points (APs) and relay stations in wireless local area networks (WLANs), communication devices in future PLMN networks, and communication devices in NTN networks, etc.

[0046] Furthermore, network devices may include means for providing wireless communication capabilities to terminals, such as a chip system. For example, a chip system may include a chip, and may also include other discrete components.

[0047] Furthermore, network devices can communicate with Internet Protocol (IP) networks, such as the Internet, private IP networks, or other data networks.

[0048] It should be noted that in some network deployments, a network device can be a standalone node to implement all the functions of the aforementioned base station. This can include centralized units (CUs) and distributed units (DUs), such as gNB-CU and gNB-DU; it can also include active antenna units (AAUs). The CU can implement some of the network device's functions, and so can the DU. For example, the CU is responsible for handling non-real-time protocols and services, implementing the functions of the radio resource control (RRC) layer, service data adaptation protocol (SDAP) layer, and packet data convergence protocol (PDCP) layer. The DU is responsible for handling physical layer protocols and real-time services, implementing the functions of the radio link control (RLC) layer, medium access control (MAC) layer, and physical (PHY) layer. Additionally, the AAU can implement some physical layer processing functions, radio frequency processing, and related functions of the active antenna. Since RRC layer information ultimately becomes PHY layer information, or is derived from PHY layer information, in this network deployment, higher-layer signaling (such as RRC layer signaling) can be considered to be sent by the DU, or jointly by the DU and AAU. It is understood that network devices can include at least one of CU, DU, and AAU. Furthermore, the CU can be classified as a network device in the radio access network (RAN), or it can be classified as a network device in the core network; no specific limitation is made in this regard.

[0049] Furthermore, the network equipment can possess mobility characteristics; for example, the network equipment can be a mobile device. Optionally, the network equipment can be a satellite or a balloon station. For example, the satellite can be a low Earth orbit (LEO) satellite, a medium Earth orbit (MEO) satellite, a geostationary earthorbit (GEO) satellite, or a high elliptical orbit (HEO) satellite. Optionally, the network equipment can also be a base station located on land, water, or other similar locations.

[0050] Furthermore, network devices can provide services to a cell, and terminals within that cell can communicate with the network devices through transmission resources (such as spectrum resources). This cell can include macro cells, small cells, metro cells, micro cells, pico cells, and femto cells, among others.

[0051] Based on the above description, the wireless communication system of this application embodiment will be described below as an example.

[0052] For an example, see the wireless communication system of this application embodiment. Figure 1 The wireless communication system 10 may include a terminal 110 and a network device 120, wherein the network device 120 may be a device that communicates with the terminal 110. Simultaneously, the network device 120 may provide communication coverage for a specific geographical area and may communicate with the terminal 110 located within that coverage area.

[0053] Optionally, the wireless communication system 10 may also include multiple network devices, and each network device may include a certain number of terminals within its coverage area, without specific limitations.

[0054] Optionally, the wireless communication system 10 may also include other network entities such as a network controller and a mobility management entity, without specific limitations.

[0055] Optionally, the communication between the network device and the terminal in the wireless communication system 10 can be wireless or wired communication, without specific restrictions.

[0056] In 3GPP's NR, terminals can send sounding reference signals (SRS) to network devices, enabling the network devices to perform resource scheduling, link adaptation, beam management, and power control based on the SRS. Currently, in NR R15 / R16 / R17, the number of SRS antenna ports included in an SRS resource is 1, 2, or 4, meaning the maximum number of SRS antenna ports in an SRS resource is 4. However, when the maximum number of SRS antenna ports in an SRS resource exceeds 4, existing standard protocols lack a specific solution for determining the SRS resource mapping and SRS resource pattern.

[0057] In summary, when the maximum number of SRS antenna ports contained in an SRS resource exceeds 4, in order to determine the SRS resource mapping and the SRS resource pattern, this application embodiment expects to send configuration information to the terminal through a network device, so that the terminal can determine the transmission comb offset (i.e., the first transmission comb offset) corresponding to each of the L (L>4) SRS antenna ports of the SRS resource according to the configuration information, thereby determining the frequency domain start position corresponding to each of the L SRS antenna ports through the first transmission comb offset to realize the SRS resource mapping and the SRS resource pattern.

[0058] To achieve the above technical solution, the following will further explain and clarify other contents, concepts, and meanings that may be involved.

[0059] 1. SRS

[0060] SRS is an important uplink reference signal in 5G / NR systems and is widely used in various functions of NR systems, such as:

[0061] (1) Terminal detection process for obtaining channel state information (CSI) for downlink;

[0062] (2) Used for uplink beam management;

[0063] (3) Used for positioning functions;

[0064] (4) To coordinate with codebook-based uplink transmission, such as frequency domain scheduling and determination of Rank / precoding matrix indicator (PMI) / modulation coding scheme (MCS);

[0065] (5) To coordinate with non-codebook based uplink transmission, such as frequency domain scheduling and determination of SRS resource indicator (SRI) / MCS;

[0066] etc.

[0067] In addition, SRS supports three different transmission modes: periodic, semi-persistent, and aperiodic, as detailed below:

[0068] (1) Periodic SRS and Semi-persistent SRS

[0069] Periodic SRS refers to SRS transmitted periodically, with its period and slot offset configured by RRC signaling. If the terminal receives the relevant configuration information configured by this RRC signaling, the terminal transmits SRS at a certain period according to this information until the relevant configuration information expires. Furthermore, the spatial relation information of periodic SRS is also configured by RRC signaling. This spatial relation information is used to implicitly indicate the transmitted beam, and it can indicate a channel state information reference signal (CSI-RS), a synchronization signal and PBCH block (SSB), or an SRS. Therefore, the terminal can determine the transmission beam of the SRS resource based on the received beam of the CSI-RS / SSB indicated by this spatial relation information, or determine the transmission beam of the SRS based on the transmission beam of the reference SRS.

[0070] The period and slot offset of semi-persistent SRS are configured by RRC signaling, but its activation and deactivation signaling are carried by the media access control element (MAC CE) of the media access control layer. Specifically, the terminal begins periodically transmitting SRS after receiving the activation signaling and continues until it receives the deactivation signaling. Simultaneously, spatial information related to semi-persistent SRS is carried along with the MAC CE that activates SRS.

[0071] After receiving the period and time slot offset configured in the RRC signaling, the terminal determines the time slots available for SRS transmission according to the following formula:

[0072]

[0073] in, n represents the number of time slots within each radio frame when the subcarrier configuration is μ. f This represents the system frame number (SFN). T represents the slot index number within a radio frame when the subcarrier is configured as μ. offset T represents the time slot offset configured by RRC signaling. SRS This indicates the period configured by RRC signaling.

[0074] (2) Non-periodic SRS

[0075] Aperiodic SRS refers to SRS transmitted aperiodically. Network devices can trigger aperiodic SRS transmission by the terminal via downlink control information (DCI). Furthermore, the triggering signaling for aperiodic SRS transmission can be carried either through the DCI used to schedule the physical uplink shared channel (PUSCH) or the physical downlink shared channel (PDSCH) in the UE-specific search space, or through DCI format 2_3 in the common search space. DCI format 2_3 can be used not only to trigger aperiodic SRS transmission but also to configure TPC commands for SRS on a group of UEs or a group of carriers. Simultaneously, the DCI carries a 2-bit SRS request to trigger aperiodic SRS transmission.

[0076] When a terminal receives an aperiodic SRS trigger signaling (such as DCI), it performs aperiodic SRS transmission based on the SRS resource set indicated by the trigger signaling. The time slot offset between the trigger signaling and the aperiodic SRS transmission is configured by higher-layer signaling (such as RRC signaling). Simultaneously, the network device pre-instructs the terminal on the configuration parameters of each SRS resource set, including time-frequency resources, via higher-layer signaling. Furthermore, for each SRS resource in the triggered SRS resource set, the terminal can determine the transmission beam used to transmit the corresponding SRS for that SRS resource using the spatial information related to that SRS resource. This spatial information can be configured for each SRS resource via RRC information.

[0077] 2. Configuration Information

[0078] It should be noted that terminal devices can obtain this configuration information from network devices during processes such as cell search, cell access, cell camping, initial access, random access, and uplink / downlink resource scheduling, without any specific restrictions.

[0079] In this embodiment, the configuration information may include information element (IE) SRS-Config, etc., and IE SRS-Config can be used to configure SRS transmission. IE SRS-Config can define a list of higher-level parameter SRS resources (such as SRS-Resources) and a list of higher-level parameter SRS resource sets (such as SRS-ResourceSets), and each SRS resource set can define a set of higher-level parameter SRS-Resources.

[0080] Additionally, network devices can use configured non-periodic higher-level parameters (such as aperiodicSRS-ResourceTrigger or aperiodicSRS-ResourceTriggerList) to trigger the transmission of SRS resource sets.

[0081] In some embodiments, the configuration information may include at least one of the following: number of transmission comb teeth K TC Second transmission comb tooth offset Cyclic displacement number Maximum number of cycle displacements How this configuration information includes these parameters, and the meaning of these parameters, will be described in the following section.

[0082] 3. SRS resources, the value of L, and the port index number of each SRS port among the L SRS ports.

[0083] The terminal can be configured with one or more SRS resource sets according to the instructions of higher-level parameters (such as SRS-ResourceSet or SRS-PosResourceSet). For each SRS resource set configured by SRS-ResourceSet, K (K≥1) SRS resources can be configured (as configured by the higher-level parameter SRS-Resource), where the maximum value of K can be determined by the terminal's capabilities.

[0084] The applicability of an SRS resource set is configured by the usage parameters in the SRS-ResourceSet.

[0085] An SRS resource can be configured by higher-level parameters (such as SRS-Resource or SRS-PosResource), including:

[0086] 1) One SRS antenna port, SRS antenna port in one of the SRS antenna ports The port index number is represented as

[0087] The maximum number of SRS antenna ports included in the SRS resource (i.e. The value of can be configured by higher-level parameters (such as nrofSRS-Ports). If this higher-level parameter is not configured, then Additionally, when the SRS resource is located in an SRS resource set where a higher-level parameter (such as usage) is not set to 'nonCodebook', or when the SRS resource is located in an SRS resource set where a higher-level parameter (such as usage) is set to 'nonCodebook', p i =1000+i.

[0088] It should be noted that, in the embodiments of the application, The value of is the same as the value of L. That is, the maximum number of SRS antenna ports included in the SRS resource configured by the higher-level parameters (such as nrofSRS-Ports) is L, and the port index number of SRS antenna port i (i∈{0,1,...,L-1}) among the L SRS antenna ports is represented as .

[0089] In addition, the value of L can be 5, 6, 7 or 8, etc., without specific restrictions.

[0090] For example, when L is 5, for the 5 SRS antenna ports, the port index number of SRS antenna port 0 is p0 = 1000, the port index number of SRS antenna port 1 is p1 = 1001, the port index number of SRS antenna port 2 is 1002, the port index number of SRS antenna port 3 is 1003, and the port index number of SRS antenna port 4 is 1004.

[0091] 2) A series of consecutive OFDM symbols. Among them, The value is configured by higher-level parameters.

[0092] For example, the nrofSymbols field configuration in resourceMapping

[0093] 3) The time-domain starting position l0 of the SRS. Wherein, Offset l offset OFDM symbols ∈{0,1,...,13} are counted from the end of the time slot forward and are given by higher-layer parameters.

[0094] For example, the startPosition field in resourceMapping is configured with l0.

[0095] 4) The frequency-domain starting position of SRS, k0.

[0096] 4. SRS resource sequence generation, KTC The value of The value of

[0097] For the SRS resource of OFDM symbol l′ and SRS antenna port i, the SRS sequence of the SRS resource is generated according to the following formula:

[0098]

[0099]

[0100]

[0101] The meaning of each parameter in the above formula will be explained below.

[0102] 1) Meaning

[0103] The length of the SRS sequence can be represented as:

[0104]

[0105] in, This indicates the number of subcarriers contained in one RB;

[0106] K TC This is represented as the transmission comb number and is configured by higher-level parameters; for example, the transmissionComb configuration is K. TC

[0107] m SRS,b The number of physical resource blocks (PRBs) in the SRS transmission is indicated by the higher-layer parameter C configured by the higher-layer signaling. SRS and high-level parameter B SRS As shown in Table 1, where b = B. SRS B SRS ∈{0,1,2,3} is given by the field b-SRS in the higher-level parameter freqHopping; C SRS ∈{0,1,...,63} is given by the field c-SRS in the high-level parameter freqHopping, b hop ∈{0,1,2,3} is given by the b-hop domain contained in the higher-level parameter freqHopping; m SRS,0 It can represent the total bandwidth of SRS frequency hopping.

[0108] Table 1

[0109]

[0110] It should be noted that, in the embodiments of this application, K TC The range of values ​​for K can be {2, 4, 8} (i.e., K). TC In addition to ∈{2,4,8}, embodiments of this application may also define K. TC The new range of values ​​is not specifically limited.

[0111] For example, K TC The range of values ​​is {2, 4, 8, 12}, etc.

[0112] 2) Meaning

[0113] Represented as low-PAPR pseudo-random sequences, they can be defined as follows:

[0114]

[0115] in, Represented as Length;

[0116] α represents the cyclic shift;

[0117] Represents a basic sequence;

[0118] u∈{0,1,...,29} represents the group number;

[0119] v represents The basic serial number within the group;

[0120] δ=log2(K TC ).

[0121] 3)α i Meaning

[0122] α i Represented as SRS antenna port i(p) i The cyclic displacement of ) can be defined as:

[0123]

[0124]

[0125] in, This is represented as the number of cycle displacements and is configured by higher-level parameters; for example, the transmissionComb configuration.

[0126] This represents the maximum number of cyclic displacements, and The value of can be determined by K TC The value of is determined.

[0127] For example, when K TC When the value range is {2, 4, 8}, The values ​​for are given in Table 2.

[0128] Table 2

[0129]

[0130] For example, when K TC When the value range is {2,4,8,12}, The values ​​for are given in Table 3.

[0131] Table 3

[0132]

[0133] It should be noted that K TC This can represent the number of SRS antenna ports that have the possibility of frequency domain orthogonality, while This can represent the number of SRS antenna ports that have the potential for code division orthogonality in the code domain. Since orthogonality needs to be guaranteed between different SRS antenna ports or different terminals, (like ) indicates the total number of orthogonal arrays that can be accommodated.

[0134] For example, the parameter transmissionComb in NR R16 contains the following information:

[0135]

[0136]

[0137] Among them, n2-r16 is used to configure K TC =2; combOffset-n2-r16 is used for configuration. The value of cyclicShift-n2-r16 is used for configuration. The value of is determined similarly for the others.

[0138] 4. SRS resource mapping, first transmission comb offset

[0139] When transmitting SRS on a given SRS resource, for the SRS resource of OFDM symbol l′ and SRS antenna port i, the SRS sequence of that SRS resource is... It should be multiplied by the amplitude scaling factor β. SRS To meet a certain transmission power requirement.

[0140] In this embodiment, since the maximum number of SRS antenna ports included in the SRS resource will exceed 4, i.e., L > 4, the SRS resource mapping method will be different depending on the value of L. The SRS resource mapping method when L = 4 will be introduced first, followed by a detailed explanation of the SRS resource mapping method when L > 4.

[0141] Scenario 1: L = 4 (i.e., )

[0142] when At that time, the SRS sequence corresponding to SRS antenna port i (i∈{0,1,2,3}) is transferred from the following formula. Begin mapping resource elements (k, l) sequentially to a specific time slot:

[0143]

[0144] The meaning of each parameter in the above formula will be explained below.

[0145] 1. The meaning of l′

[0146] It should be noted that, due to This indicates that the SRS resource contains Each OFDM symbol in a set of OFDM symbols must transmit / map / carry all One SRS antenna port.

[0147] In other words, In a set of OFDM symbols, one OFDM symbol is taken as a unit, and the result is... Each unit is used to transmit / map / carry all data. Each unit has an SRS antenna port, and repeating or frequency hopping is possible between units.

[0148] Or rather, Each SRS antenna port is mapped to the same OFDM symbol.

[0149] For example, when L = 4, and In this case, within the two OFDM symbols, the first OFDM symbol transmits / maps / carries all four SRS antenna ports, and the second OFDM symbol transmits / maps / carries all four SRS antenna ports. Alternatively, each of the four SRS antenna ports is mapped to the first OFDM symbol, and each of the four SRS antenna ports is mapped to the second OFDM symbol.

[0150] 2. Meaning

[0151] Represented as SRS antenna port i(p) i The starting position of the frequency domain corresponding to ) can be defined as follows:

[0152]

[0153] in, It can be defined as follows:

[0154]

[0155] 1) Meaning

[0156] The transmission comb offset corresponding to SRS antenna port i, i.e., the "first transmission comb offset" in this embodiment, can be defined as follows:

[0157]

[0158] in, This is represented as the transmission comb offset, specifically the "second transmission comb offset" in this embodiment, and is configured by higher-level parameters. For example, the transmissionComb parameter configuration in SRS-Resource or SRS-PosResource.

[0159] From the above formula, we can see that when L = 4, the following applies:

[0160] ①If Then, among these four SRS ports, the transmission comb offset corresponding to SRS port 1 (i.e., p1 = 1001) is... The transmission comb offset corresponding to SRS port 3 (i.e., p1 = 1003) They are the same, that is

[0161] In other words, if Therefore, among the four SRS antenna ports, the first transmission comb offsets corresponding to all SRS antenna ports with odd port index numbers are the same.

[0162] ② Among these four SRS ports, the transmission comb offset corresponding to SRS port 0 (i.e., p1 = 1000) The transmission comb offset corresponding to SRS port 2 (i.e., p2 = 1002) They are the same, that is

[0163] In other words, among the four SRS antenna ports, the first transmission comb offset is the same for all SRS antenna ports with even port index numbers.

[0164] ③If Therefore, in 1 / 2 / 4 SRS antenna ports (since the value of L represents the maximum number of SRS antenna ports included in the SRS resource, there may actually be 1 / 2 / 4 SRS antenna ports), the transmission comb offset corresponding to each SRS port is the same, that is...

[0165] 3. n shift Meaning

[0166] n shift This is represented as a frequency domain shift value, used to adjust the SRS allocation relative to the reference point grid, and is configured by higher-level parameters. For example, the freqDomainShift parameter in SRS-Resource or SRS-PosResource configures n shift

[0167] When BWP starts When the reference point is A, the reference point is subcarrier 0 in common resource block 0, i.e., the reference point is point A; otherwise, the reference point is the smallest subcarrier in BWP.

[0168] 4. Meaning

[0169] If SRS is configured by the high-level parameter SRS-PosResource, then the quantity... By K TC and Confirm; otherwise,

[0170] For example, when K TC When the value range is {2, 4, 8}, As shown in Table 4.

[0171] Table 4

[0172]

[0173] 5. n b Meaning

[0174] n b It is represented as a frequency position index.

[0175] It should be noted that 5G NR communication systems support frequency hopping during SRS transmission. If b is satisfied... hop SRS Under the condition that b is satisfied, SRS frequency hopping transmission is enabled, and the terminal transmits SRS in the form of frequency hopping. hop ≥B SRS In this case, SRS frequency hopping transmission is disabled, and the terminal does not transmit SRS in the form of frequency hopping.

[0176] ①When b hop SRS When enabling SRS frequency hopping, n b It can be defined as:

[0177]

[0178] Where, m SRS,b and N b Determined by Table 1;

[0179] n RRC This is expressed as a quantity and can be configured by higher-level parameters (such as freqDomainPosition); if no higher-level parameters are configured, then n RRC =0;

[0180] Operators Indicates rounding down;

[0181] F b (n SRS It is determined by the following formula:

[0182]

[0183] Wherein, regardless of N b What are the possible values ​​for ? n SRS Indicates the number of SRS frequency hopping (SRS transmission).

[0184] ​​For aperiodic SRS, the number of SRS frequency hopping operations is determined by the following formula:

[0185]

[0186] in, R is the repetition factor, which is configured by higher-layer signaling and indicates the number of repeated OFDM symbols for SRS frequency hopping. For example, when R=1, frequency hopping is performed in units of 1 OFDM symbol; when R=2, frequency hopping is performed in units of 2 OFDM symbols.

[0187] For periodic SRS or semi-periodic SRS, the number of SRS frequency hopping is determined by the following formula:

[0188]

[0189] in, n represents the number of time slots within each radio frame when the subcarrier configuration is μ. f This represents the system frame number (SFN). T represents the slot index number within a radio frame when the subcarrier is configured as μ. offset T represents the time slot offset configured by RRC signaling. SRS This indicates the period configured by RRC signaling. Among them, Determined from Table 5.

[0190] Table 5

[0191]

[0192] In Table 5, Δf represents the subcarrier spacing. This indicates the number of OFDM symbols contained in each slot. T represents the number of time slots contained in each subframe. slot Indicates the time slot length.

[0193] ②When b hop ≥B SRS When enabling SRS frequency hopping function, n b It can be defined as:

[0194]

[0195] Where, m SRS,b and N b Determined by Table 1;

[0196] n RRCThis is expressed as a quantity and can be configured by higher-level parameters (such as freqDomainPosition); if no higher-level parameters are configured, then n RRC =0.

[0197] Scenario 2: L > 4 (i.e. )

[0198] when At that time, the SRS sequence corresponding to SRS antenna port i (i∈{0,1,2,3,...}) is transferred from the following formula. Begin mapping resource elements (k, l) sequentially to a specific time slot:

[0199]

[0200] in,

[0201] The meaning of each parameter in the above formula will be explained below.

[0202] 1. Meaning

[0203] It can exist in the following ways:

[0204] 1)

[0205] It should be noted that, consistent with "Scenario 1" above, due to This indicates that the SRS resource contains Each OFDM symbol in a set of OFDM symbols must transmit / map / carry all One SRS antenna port.

[0206] In other words, In a set of OFDM symbols, one OFDM symbol is taken as a unit, and the result is... Each unit is used to transmit / map / carry all data. Each unit has an SRS antenna port, and repeating or frequency hopping is possible between units.

[0207] Or rather, Each SRS antenna port is mapped to the same OFDM symbol.

[0208] For example, when L = 6, and In this case, within the two OFDM symbols, the first OFDM symbol transmits / maps / carries all six SRS antenna ports, and the second OFDM symbol transmits / maps / carries all six SRS antenna ports. Alternatively, each of the six SRS antenna ports is mapped to the first OFDM symbol, and each of the six SRS antenna ports is mapped to the second OFDM symbol.

[0209] 2)

[0210] It should be noted that this is different from the case of "L=4" mentioned above. That is, to transmit / map / carry using an OFDM symbol as a unit. One SRS antenna port, due to Right now This indicates that the SRS resource contains In an OFDM symbol, it needs to be transmitted / mapped / carried by two consecutive (adjacent) OFDM symbols in sequence. One SRS antenna port.

[0211] In other words, Within a set of OFDM symbols, two consecutive (adjacent) OFDM symbols are grouped together as a unit to obtain... Each unit is used for transmission / mapping / carrying. Each unit has an SRS antenna port, and repeating or frequency hopping is possible between units.

[0212] Or rather, Each SRS antenna port is mapped to one of the two OFDM symbols within a single cell.

[0213] ① How two consecutive (adjacent) OFDM symbols are considered as a unit

[0214] To treat two consecutive (adjacent) OFDM symbols as a single unit, the following approach can be used:

[0215] The first OFDM symbol (l′=0) and the second OFDM symbol (l′=1) are treated as one unit, the third OFDM symbol (l′=2) and the fourth OFDM symbol (l′=3) are treated as one unit in turn, and so on.

[0216] because Therefore, the SRS antenna port i(p) i The symbols will be mapped to the first OFDM symbol (l′=0), the third OFDM symbol (l′=2), the fifth OFDM symbol (l′=4), and so on.

[0217] For example, if but Explain the SRS antenna port i(p) i Mapped to the first OFDM symbol out of four OFDM symbols and SRS antenna port i(p i Mapped to the third OFDM symbol out of the four OFDM symbols.

[0218] ② Which SRS antenna ports are mapped to the same OFDM symbol in two OFDM symbols within a single cell?

[0219] It should be noted that, in this embodiment of the application, two OFDM symbols within a single unit are respectively regarded as a "first OFDM symbol" and a "second OFDM symbol". Therefore, for Which SRS antenna ports are mapped to the same OFDM symbol can be determined in the following way:

[0220] ·exist Among the SRS antenna ports, the SRS antenna ports with the first S (S < L) port index numbers are each mapped to the same first OFDM symbol, and the SRS antenna ports with other port index numbers other than the S first S port index numbers are each mapped to the same second OFDM symbol.

[0221] ·exist Of the SRS antenna ports, all SRS antenna ports with odd port index numbers are mapped to the same first OFDM symbol, and all SRS antenna ports with even port index numbers are mapped to the same second OFDM symbol.

[0222] It should be noted that S can be any positive integer less than L. For example, S can be L / 2.

[0223] In addition, the value of S can be network configuration or pre-configuration, or it can be determined by the terminal itself, without specific restrictions.

[0224] 3)

[0225] It should be noted that, similarly to the above, because Right now This indicates that the SRS resource contains In an OFDM symbol, it needs to be transmitted / mapped / carried by two consecutive (adjacent) OFDM symbols in sequence. One SRS antenna port.

[0226] In other words, Within a set of OFDM symbols, two consecutive (adjacent) OFDM symbols are grouped together as a unit to obtain... Each unit is used for transmission / mapping / carrying. Each unit has an SRS antenna port, and repeating or frequency hopping is possible between units.

[0227] Or rather, Each SRS antenna port is mapped to one of the two OFDM symbols within a single cell.

[0228] ① How two consecutive (adjacent) OFDM symbols are considered as a unit

[0229] To treat two consecutive (adjacent) OFDM symbols as a single unit, the following approach can be used:

[0230] The first OFDM symbol (l′=0) and the second OFDM symbol (l′=1) are treated as one unit, the third OFDM symbol (l′=2) and the fourth OFDM symbol (l′=3) are treated as one unit in turn, and so on.

[0231] At this time, due to Therefore, the SRS antenna port i(p) i The symbols will be mapped to the second OFDM symbol (l′=1), the fourth OFDM symbol (l′=3), the sixth OFDM symbol (l′=5), and so on.

[0232] For example, if but Explain the SRS antenna port i(p) i Mapped to the second OFDM symbol out of four OFDM symbols. and SRS antenna port i(p i Mapped to the fourth OFDM symbol out of the four OFDM symbols.

[0233] ② Which SRS antenna ports are mapped to the same OFDM symbol in two OFDM symbols within a single cell?

[0234] It should be noted that, for Which SRS antenna ports are mapped to the same OFDM symbol can be determined in the same way as described above:

[0235] ·exist Among the S SRS antenna ports, the SRS antenna ports with the first S (S < L) port indices are each mapped to the same first OFDM symbol, and the SRS antenna ports with port indices other than the first S port indices are each mapped to the same second OFDM symbol;

[0236] · Among the S SRS antenna ports, all SRS antenna ports belonging to odd port indices are each mapped to the same first OFDM symbol, and all SRS antenna ports belonging to even port indices are each mapped to the same second OFDM symbol.

[0237] 4)

[0238] It should be noted that, similarly to the above, since it means that among the OFDM symbols included in the SRS resource, two non - consecutive (non - adjacent) OFDM symbols are required to transmit / map / carry the S SRS antenna ports in sequence.

[0239] That is to say, among the OFDM symbols, two non - consecutive (non - adjacent) OFDM symbols are taken as a unit in sequence, resulting in units, and one unit is used to transmit / map / carry the S SRS antenna ports, and repetition or frequency hopping can be performed between units. Or rather, the S SRS antenna ports are respectively mapped to one of the two OFDM symbols within a unit.

[0240] ① How two non - consecutive (non - adjacent) OFDM symbols are taken as a unit

[0241] For how two non - consecutive (non - adjacent) OFDM symbols are taken as a unit, the following method can be adopted:

[0242] The first OFDM symbol (l′ = 0) and the symbol are taken as a unit, the second OFDM symbol (l′ = 1) and the fourth OFDM symbol are taken as a unit in sequence, and so on.

[0243] At this time, since therefore, SRS antenna port i (p i ) will be respectively mapped to the first OFDM symbol the second OFDM symbol Third OFDM symbol And so on.

[0244] For example, if but Explain the SRS antenna port i(p) i Mapped to the first OFDM symbol out of four OFDM symbols and SRS antenna port i(p i Mapped to the second OFDM symbol out of the four OFDM symbols.

[0245] ② Which SRS antenna ports are mapped to the same OFDM symbol in two OFDM symbols within a single cell?

[0246] It should be noted that, for Which SRS antenna ports are mapped to the same OFDM symbol can be determined in the same way as described above:

[0247] ·exist Among the SRS antenna ports, the SRS antenna ports with the first S (S < L) port index numbers are each mapped to the same first OFDM symbol, and the SRS antenna ports with other port index numbers other than the S first S port index numbers are each mapped to the same second OFDM symbol.

[0248] ·exist Of the SRS antenna ports, all SRS antenna ports with odd port index numbers are mapped to the same first OFDM symbol, and all SRS antenna ports with even port index numbers are mapped to the same second OFDM symbol.

[0249] 5)

[0250] It should be noted that, similarly to the above, because This indicates that the SRS resource contains In an OFDM symbol, it needs to be transmitted / mapped / carried sequentially by two non-contiguous (non-adjacent) OFDM symbols. One SRS antenna port.

[0251] In other words, Within a given OFDM symbol, two non-contiguous (non-adjacent) OFDM symbols are sequentially grouped into a single unit to obtain... Each unit is used for transmission / mapping / carrying. Each unit has an SRS antenna port, and frequency hopping or repeating is possible between units. In other words, Each SRS antenna port is mapped to one of the two OFDM symbols within a single cell.

[0252] ① How to treat two non-contiguous (non-adjacent) OFDM symbols as a single unit

[0253] To treat two non-contiguous (non-adjacent) OFDM symbols as a single unit, the following approach can be used:

[0254] The first OFDM symbol (l′=0) and the first OFDM symbols As a unit, the second OFDM symbol (l′=1) and the fourth OFDM symbol One unit at a time, and so on.

[0255] At this time, due to Therefore, the SRS antenna port i(p) i ) will be mapped to the first OFDM symbol respectively. Second OFDM symbol Third OFDM symbol And so on.

[0256] For example, if but Explain the SRS antenna port i(p) i Mapped to the third OFDM symbol out of four OFDM symbols. and SRS antenna port i(p i Mapped to the fourth OFDM symbol out of the four OFDM symbols.

[0257] ② Which SRS antenna ports are mapped to the same OFDM symbol in two OFDM symbols within a single cell?

[0258] It should be noted that, for Which SRS antenna ports are mapped to the same OFDM symbol can be determined in the same way as described above:

[0259] ·exist Among the SRS antenna ports, the SRS antenna ports with the first S (R < L) port index numbers are each mapped to the same first OFDM symbol, and the SRS antenna ports with other port index numbers other than the S first S port index numbers are each mapped to the same second OFDM symbol.

[0260] ·exist Of the SRS antenna ports, all SRS antenna ports with odd port index numbers are mapped to the same first OFDM symbol, and all SRS antenna ports with even port index numbers are mapped to the same second OFDM symbol.

[0261] 6) The value is any of Each element.

[0262] It should be noted that, similarly to the above, because The value is any of The number of elements indicates the contents of the SRS resource. In an OFDM symbol, it needs to be transmitted / mapped / carried sequentially by two consecutive / adjacent / non-consecutive / non-adjacent OFDM symbols. One SRS antenna port.

[0263] In other words, Within a set of OFDM symbols, two consecutive / adjacent / non-consecutive / non-adjacent OFDM symbols are sequentially grouped into a single unit. Each unit is used for transmission / mapping / carrying. Each unit has an SRS antenna port, and frequency hopping or repeating is possible between units. In other words, Each SRS antenna port is mapped to one of the two OFDM symbols within a single cell.

[0264] ① How to treat two consecutive / adjacent / non-consecutive / non-adjacent OFDM symbols as a single unit

[0265] To determine how to group two consecutive / adjacent / non-consecutive / non-adjacent OFDM symbols into a single unit, a random selection method can be used. The network device can either randomly select the symbol and then configure it for the terminal, or the terminal can directly perform a random selection.

[0266] ② Which SRS antenna ports are mapped to the same OFDM symbol in two OFDM symbols within a single cell?

[0267] It should be noted that, for Which SRS antenna ports are mapped to the same OFDM symbol can be determined in the same way as described above:

[0268] ·exist Among the SRS antenna ports, the SRS antenna ports with the first S (S < L) port index numbers are each mapped to the same first OFDM symbol, and the SRS antenna ports with other port index numbers other than the S first S port index numbers are each mapped to the same second OFDM symbol.

[0269] ·exist Of the SRS antenna ports, all SRS antenna ports with odd port index numbers are mapped to the same first OFDM symbol, and all SRS antenna ports with even port index numbers are mapped to the same second OFDM symbol.

[0270] 2. Meaning

[0271] Represented as SRS antenna port i(p) i The starting position of the frequency domain corresponding to ) can be defined as follows:

[0272]

[0273] in, It can be defined as follows:

[0274]

[0275] 1) Meaning

[0276] This is represented as the transmission comb offset corresponding to SRS antenna port i, which is the "first transmission comb offset" in this application embodiment.

[0277] In "Scenario Two", when At that time, different values ​​of L will lead to The values ​​can be determined in different ways. There are different ways to determine the values ​​corresponding to each of the L SRS ports. The embodiments of this application can be adopted in the following manner:

[0278] The terminal can determine the number of transmission comb teeth (K) based on the configuration information. TC ) and / or second transmission comb offset Determine the first transmission comb offset corresponding to each of the L SRS antenna ports; or,

[0279] The terminal can determine the number of transmission comb teeth (K) based on the configuration information. TC ), second transmission comb offset Cyclic displacement number and maximum number of cycle displacements Determine the first transmission comb offset corresponding to each of the L SRS antenna ports.

[0280] The following is a detailed explanation.

[0281] Method 1:

[0282] when hour, It can be made by K TC and Sure.

[0283] For example, The following conditions can be met (represented / taken):

[0284]

[0285] The meanings of the different parameters in the above expression will be explained in detail below.

[0286] 1) Meaning

[0287] This is referred to as the transmission comb offset, namely the "second transmission comb offset" in this embodiment of the application, which is configured by higher-level parameters.

[0288] For example, the transmissionComb parameter configuration in the high-level parameters SRS-Resource or SRS-PosResource.

[0289] 2) Meaning

[0290] Represented as SRS antenna port i(p) i The corresponding positive rational number or 0. Where, The value can be network-configured, pre-configured, protocol-defined, etc., without specific restrictions.

[0291] The value of can be a positive rational number less than 1, a positive rational number greater than 1, or 0; there are no specific restrictions on this.

[0292] For example, The value can be 0, 1 / 8, 1 / 4, 3 / 8, 1 / 2, 5 / 8, 3 / 4, 7 / 8, 1, 3 / 2, 2, etc.

[0293] In addition, different SRS antenna ports correspond to The values ​​can be the same or different.

[0294] In other words, Among the SRS antenna ports, the following exists:

[0295] • All SRS antenna ports corresponding to The values ​​are all the same (i.e., identical);

[0296] • The corresponding ports of all SRS antennas with even port index numbers The values ​​are all the same (i.e., identical), while the values ​​corresponding to all SRS antenna ports with odd port index numbers are... The value of is another value that is the same (i.e., identical);

[0297] • Among the SRS antenna ports with odd port index numbers, the SRS antenna ports with the first M port index numbers each correspond to The values ​​are all the same (i.e., identical), and the values ​​corresponding to the SRS antenna ports of the first N port indices excluding the first M port indices are also the values ​​corresponding to the SRS antenna ports of the first N port indices. It is another value that is the same (i.e., identical), and so on, where M is a positive integer, N is a positive integer, and M+N<L;

[0298] • Among the SRS antenna ports with even port index numbers, the SRS antenna ports with the first P port index numbers each correspond to The values ​​are all the same (i.e., identical), and the values ​​corresponding to the SRS antenna ports of the first T port indices, excluding the first P port indices. The value of is another value that is the same (i.e., identical), and so on. P is a positive integer, T is a positive integer, and P+T<L; where P can be equal to M and T can be equal to N.

[0299] Due to the different SRS antenna ports corresponding to The values ​​of M, N, P, and T can be the same or different, and different values ​​of M, N, P, and T will also lead to... Since they can take different values, several examples are provided below for easier understanding. The possible values ​​of are given as examples, and those skilled in the art can generalize other examples, which will not be elaborated here.

[0300] Example 1:

[0301]

[0302] It is understandable that, among the five SRS antenna ports, the transmission comb offset (i.e., the first transmission comb offset) corresponding to SRS antenna port 0 (i.e., p0 = 1000), SRS antenna port 2 (i.e., p2 = 1002), and SRS antenna port 4 (i.e., p4 = 1004) is the same. And i is an even number.

[0303] Similarly, among the five SRS antenna ports, SRS antenna port 1 (i.e., p1 = 1001) and SRS antenna port 3 (i.e., p3 = 1003) each correspond to... They are the same value, that is Therefore, the corresponding transmission comb tooth offsets (i.e., the first transmission comb tooth offsets) are the same for each, that is... And i is an odd number.

[0304] In other words, among the L SRS antenna ports, the first transmission comb offsets corresponding to all SRS antenna ports with odd port indices are the same, and the first transmission comb offsets corresponding to all SRS antenna ports with even port indices are the same.

[0305] Example 2:

[0306]

[0307] It is understandable that, among the six SRS antenna ports, the transmission comb offset (i.e., the first transmission comb offset) corresponding to SRS antenna port 0 (i.e., p0 = 1000), SRS antenna port 2 (i.e., p2 = 1002), and SRS antenna port 4 (i.e., p4 = 1004) is the same. And i is an even number.

[0308] Similarly, among the six SRS antenna ports, SRS antenna port 1 (i.e., p1 = 1001), SRS antenna port 3 (i.e., p3 = 1003), and SRS antenna port 5 (i.e., p5 = 1005) each correspond to... They are the same value, that is Therefore, the corresponding transmission comb tooth offsets (i.e., the first transmission comb tooth offsets) are the same for each, that is... And i is an odd number.

[0309] In other words, among the L SRS antenna ports, the first transmission comb offsets corresponding to all SRS antenna ports with odd port indices are the same, and the first transmission comb offsets corresponding to all SRS antenna ports with even port indices are the same.

[0310] Example 3:

[0311]

[0312] Based on the above "Example 1", it can be seen that among the L SRS antenna ports, the first transmission comb offset corresponding to all SRS antenna ports with odd port index numbers is the same, and the first transmission comb offset corresponding to all SRS antenna ports with even port index numbers is the same.

[0313] Example 4:

[0314]

[0315] Based on the above "Example 1", it can be seen that among the L SRS antenna ports, the first transmission comb offset corresponding to all SRS antenna ports with odd port index numbers is the same, and the first transmission comb offset corresponding to all SRS antenna ports with even port index numbers is the same.

[0316] Example 5:

[0317]

[0318] It is understandable that among the 5 SRS antenna ports, SRS antenna port 0 (i.e., p0 = 1000) and SRS antenna port 2 (i.e., p2 = 1002) each correspond to... They are the same value, that is Therefore, the corresponding transmission comb tooth offsets (i.e., the first transmission comb tooth offsets) are the same for each, that is... At this point, the value of P is 2.

[0319] Similarly, among the five SRS antenna ports, SRS antenna port 1 (i.e., p1 = 1001) and SRS antenna port 3 (i.e., p3 = 1003) each correspond to... They are the same value, that is Therefore, the corresponding transmission comb tooth offsets (i.e., the first transmission comb tooth offsets) are the same for each, that is... And i is an odd number. In this case, the value of M is 2.

[0320] Similarly, among the five SRS antenna ports, SRS antenna port 4 (i.e., p4 = 1004) corresponds to... Therefore, its corresponding transmission comb tooth offset (i.e., the first transmission comb tooth offset) is At this point, the value of T is 1.

[0321] In other words, among the L SRS antenna ports with odd port index numbers, the first transmission comb offsets corresponding to the SRS antenna ports with the first M port index numbers are the same, and

[0322] Among the L SRS antenna ports, those with odd port index numbers have the same first transmission comb offset for the first N port index numbers, excluding the first M port index numbers.

[0323] Similarly, among the L SRS antenna ports with even port indices, the first transmission comb offsets corresponding to the SRS antenna ports with the first P port indices are the same, and...

[0324] Among the L SRS antenna ports, those with even port index numbers have the same first transmission comb offset for the first T port index numbers, excluding the first P port index numbers.

[0325] It should be noted that in "Example 5" The value of can also be other values, and there are no specific restrictions on this.

[0326] Optionally, "Example 5" may only apply to transmitting the comb tooth value K. TC The value can be either 8 or 12.

[0327] Example 6:

[0328]

[0329] Based on Example 5 above, it can be seen that among the L SRS antenna ports with odd port index numbers, the first transmission comb offsets corresponding to the SRS antenna ports with the first M port index numbers are the same, and...

[0330] Among the L SRS antenna ports, those with odd port index numbers have the same first transmission comb offset for the first N port index numbers, excluding the first M port index numbers.

[0331] Similarly, among the L SRS antenna ports with even port indices, the first transmission comb offsets corresponding to the SRS antenna ports with the first P port indices are the same, and...

[0332] Among the L SRS antenna ports, those with even port index numbers have the same first transmission comb offset for the first T port index numbers, excluding the first P port index numbers.

[0333] It should be noted that in "Example 6" The value of can also be other values, and there are no specific restrictions on this.

[0334] Optionally, "Example 6" may only apply to transmitting the comb tooth value K. TC The value can be either 8 or 12.

[0335] Example 7:

[0336]

[0337] Based on Example 5 above, it can be seen that among the L SRS antenna ports with odd port index numbers, the first transmission comb offsets corresponding to the SRS antenna ports with the first M port index numbers are the same, and...

[0338] Among the L SRS antenna ports, those with odd port index numbers have the same first transmission comb offset for the first N port index numbers, excluding the first M port index numbers.

[0339] Similarly, among the L SRS antenna ports with even port indices, the first transmission comb offsets corresponding to the SRS antenna ports with the first P port indices are the same, and...

[0340] Among the L SRS antenna ports, those with even port index numbers have the same first transmission comb offset for the first T port index numbers, excluding the first P port index numbers.

[0341] It should be noted that in "Example 7" The value of can also be other values, and there are no specific restrictions on this.

[0342] Optionally, "Example 7" may only apply to transmitting the comb tooth value K. TC The value can be either 8 or 12.

[0343] Example 8:

[0344]

[0345] Based on Example 5 above, it can be seen that among the L SRS antenna ports with odd port index numbers, the first transmission comb offsets corresponding to the SRS antenna ports with the first M port index numbers are the same, and...

[0346] Among the L SRS antenna ports, those with odd port index numbers have the same first transmission comb offset for the first N port index numbers, excluding the first M port index numbers.

[0347] Similarly, among the L SRS antenna ports with even port indices, the first transmission comb offsets corresponding to the SRS antenna ports with the first P port indices are the same, and...

[0348] Among the L SRS antenna ports, those with even port index numbers have the same first transmission comb offset for the first T port index numbers, excluding the first P port index numbers.

[0349] It should be noted that in "Example 8" The value of can also be other values, and there are no specific restrictions on this.

[0350] Optionally, "Example 8" may only apply to transmitting the comb tooth value K. TC The value can be either 8 or 12.

[0351] Example 9:

[0352] and p i ∈{1000,1001,1002,1003,1004,1005}.

[0353] It is understandable that, among the 6 SRS antenna ports, each SRS antenna port corresponds to... They are the same value, that is Therefore, the corresponding transmission comb tooth offsets (i.e., the first transmission comb tooth offsets) are the same for each.

[0354] In other words, the first transmission comb offset is the same for all SRS antenna ports in the L SRS antenna ports.

[0355] It should be noted that "Example 9" can also be applied to cases where L=5, 7, or 8, etc., which will not be elaborated further.

[0356] Method 2:

[0357] when hour, It can be by Sure.

[0358] For example, The following conditions can be met (represented / taken):

[0359]

[0360] in, This is referred to as the transmission comb offset, namely the "second transmission comb offset" in this embodiment of the application, and is configured by higher-level parameters.

[0361] For example, the transmissionComb parameter configuration k in the high-level parameters SRS-Resource or SRS-PosResource. TC .

[0362] At this point, the first transmission comb offset corresponding to each of the L SRS antenna ports is the same.

[0363] Method 3:

[0364] when hour, It can be made by K TC , and Sure.

[0365] For example, The following conditions can be met (represented / taken):

[0366] and

[0367] It should be noted that, unlike method 1 above, method 3 requires additional consideration. The range of values ​​imposed by the conditions.

[0368] The meanings of the different parameters in the above expression will be explained in detail below.

[0369] 1) Meaning

[0370] It should be noted that, The meaning is consistent with the description in "Method 1" above, and will not be repeated here.

[0371] 2) Meaning

[0372] It should be noted that, The meaning is consistent with the description in "Method 1" above, and will not be repeated here.

[0373] 3) Meaning

[0374] Represented as SRS antenna port i(p) i A positive integer value corresponding to ). Where, The value can be network-configured, pre-configured, or protocol-defined, and there are no specific restrictions on it.

[0375] The value of can be a positive integer greater than 1, without any specific restrictions.

[0376] For example, The value can be 2, 3, 4, 5, 6, 7 or 8, etc.

[0377] In addition, different SRS antenna ports correspond to The values ​​can be the same or different.

[0378] In other words, Among the SRS antenna ports, the following exists:

[0379] • All SRS antenna ports corresponding to The values ​​are all the same (i.e., identical);

[0380] • The corresponding ports of all SRS antennas with even port index numbers The values ​​are all the same (i.e., identical), while the values ​​corresponding to all SRS antenna ports with odd port index numbers are... The value of is another value that is the same (i.e., identical);

[0381] • Among the SRS antenna ports with odd port index numbers, the SRS antenna ports with the first M port index numbers each correspond to The values ​​are all the same (i.e., identical), and the values ​​corresponding to the SRS antenna ports of the first N port indices excluding the first M port indices are also the values ​​corresponding to the SRS antenna ports of the first N port indices. It is another value that is the same (i.e., identical), and so on, where M is a positive integer, N is a positive integer, and M+N<L;

[0382] • Among the SRS antenna ports with even port index numbers, the SRS antenna ports with the first P port index numbers each correspond to The values ​​are all the same (i.e., identical), and the values ​​corresponding to the SRS antenna ports of the first T port indices, excluding the first P port indices. The value of is another value that is the same (i.e., identical), and so on. P is a positive integer, T is a positive integer, and P+T<L; where P can be equal to M and T can be equal to N.

[0383] Due to the different SRS antenna ports corresponding to and The values ​​of M, N, P, and T can be the same or different, and different values ​​of M, N, P, and T will also lead to... Since L can take different values, for ease of understanding, we will use L=6 as an example below. The possible values ​​of L are given as examples, and those skilled in the art can generalize other examples when L = 5, 7 or 8, which will not be elaborated here.

[0384] Example 1:

[0385]

[0386] Understandably, if Then, among the 6 SRS antenna ports, SRS antenna port 1 (i.e., p1 = 1001) and SRS antenna port 3 (i.e., p3 = 1003) each correspond to... and They are the same value, that is and Therefore, the corresponding transmission comb tooth offsets (i.e., the first transmission comb tooth offsets) are the same for each, that is... And i is an odd number.

[0387] Similarly, if Among the six SRS antenna ports, SRS antenna port 1 (i.e., p1 = 1001) and SRS antenna port 3 (i.e., p3 = 1003) each correspond to... The same value, that is Therefore, the corresponding transmission comb tooth offsets (i.e., the first transmission comb tooth offsets) are the same for each, that is... And i is an odd number.

[0388] Similarly, among the six SRS antenna ports, SRS antenna port 0 (i.e., p0 = 1000), SRS antenna port 2 (i.e., p2 = 1002), and SRS antenna port 4 (i.e., p4 = 1004) each correspond to... It can be any value, so that the corresponding transmission comb offset (i.e., the first transmission comb offset) is the same for each. And i is an even number.

[0389] In other words, if Then, among the L SRS antenna ports, the first transmission comb offsets corresponding to all SRS antenna ports with odd port index numbers are the same.

[0390] like Then, in the L SRS antenna ports, the first transmission comb offset corresponding to each SRS antenna port is the same;

[0391] In the L SRS antenna ports, the first transmission comb offset is the same for all SRS antenna ports with even port index numbers.

[0392] Example 2:

[0393]

[0394] Understandably, if Then, among the 6 SRS antenna ports, SRS antenna port 0 (i.e., p0 = 1000) and SRS antenna port 2 (i.e., p2 = 1002) each correspond to... and They are the same value, that is and Therefore, the corresponding transmission comb tooth offsets (i.e., the first transmission comb tooth offsets) are the same for each, that is... At this point, the value of P is 2.

[0395] Similarly, if Then, among the six SRS antenna ports, SRS antenna port 1 (i.e., p1 = 1001) and SRS antenna port 3 (i.e., p3 = 1003) each correspond to... and They are the same value, that is and Therefore, the corresponding transmission comb tooth offsets (i.e., the first transmission comb tooth offsets) are the same for each, that is... And i is an odd number. In this case, the value of M is 2.

[0396] Similarly, if Then, among the six SRS antenna ports, SRS antenna port 4 (i.e., p4 = 1004) corresponds to... and Therefore, its corresponding transmission comb tooth offset (i.e., the first transmission comb tooth offset) is At this point, the value of T is 1.

[0397] Similarly, if Then, among the 6 SRS antenna ports, the transmission comb offset (i.e., the first transmission comb offset) corresponding to all SRS antenna ports is:

[0398] In other words, if Then, among the L SRS antenna ports with odd port index numbers, the first transmission comb offsets corresponding to the SRS antenna ports with the first M port index numbers are the same, and the first transmission comb offsets corresponding to the SRS antenna ports with the first N port index numbers (excluding the first M port index numbers) are the same.

[0399] Similarly, if Then, among the L SRS antenna ports, those with even port index numbers have the same first transmission comb offset for each of the SRS antenna ports with the first P port index numbers, and the same first transmission comb offset for each of the SRS antenna ports with the first T port index numbers (excluding the SRS antenna ports with the first P port index numbers).

[0400] Similarly, if Then, among the L SRS antenna ports, the first transmission comb offset corresponding to all SRS antenna ports is the same.

[0401] It should be noted that in "Example 2" The value of can also be other values, and there are no specific restrictions on this.

[0402] Optionally, "Example 2" may only apply to transmitting the comb tooth value K. TC The value can be either 8 or 12.

[0403] 3. n shift Meaning

[0404] It should be noted that n shift The meaning is consistent with the description in "Scenario 1" above, and will not be repeated here.

[0405] 4. Meaning

[0406] It should be noted that, The meaning is consistent with the description in "Scenario 1" above, and will not be repeated here.

[0407] 5. n b Meaning

[0408] It should be noted that n b The meaning is consistent with the description in "Scenario 1" above, and will not be repeated here.

[0409] In addition, it should be noted that those skilled in the art can combine the above-mentioned "method 1", "method 2" and "method 3" in combination rather than exclusively, and the resulting solution is also within the scope of protection of the embodiments of this application, which will not be elaborated further.

[0410] In summary, the following example illustrates a method for resource mapping of reference signals according to an embodiment of this application, using the example of a network device sending configuration information to a terminal to determine the SRS resource mapping based on the SRS resource pattern.

[0411] like Figure 2The diagram shown is a flowchart illustrating a resource mapping method for a reference signal according to an embodiment of this application, specifically including the following steps:

[0412] S210, Network devices send configuration information.

[0413] Correspondingly, the terminal obtains this configuration information.

[0414] The configuration information can be used to determine the first transmission comb offset corresponding to each of the L SRS antenna ports of the probe reference signal (SRS) resource. The first transmission comb offset can be used to determine the frequency domain start position corresponding to each of the L SRS antenna ports, where L is an integer greater than 4.

[0415] It should be noted that for details on "how the configuration information is used to determine the first transmission comb offset corresponding to each of the L SRS antenna ports of the SRS resource," please refer to the "Scenario 1" or "Scenario 2" above. The meaning of "will" will not be repeated here.

[0416] For details on "how the first transmission comb offset is used to determine the frequency domain start position corresponding to each of the L SRS antenna ports", please refer to the "Scenario 1" or "Scenario 2" above. The meaning of "will" will not be repeated here.

[0417] S220. The terminal determines the first transmission comb offset corresponding to each of the L SRS antenna ports of the detection reference signal (SRS) resource based on the configuration information. The first transmission comb offset is used to determine the frequency domain start position corresponding to each of the L SRS antenna ports.

[0418] It should be noted that for details regarding "how the terminal determines the first transmission comb offset corresponding to each of the L SRS antenna ports of the SRS resource based on the configuration information," please refer to the "Scenario 1" or "Scenario 2" above. The meaning of "will" will not be repeated here.

[0419] As can be seen, in this embodiment of the application, since the network device can send configuration information to the terminal, the terminal can determine the transmission comb offset corresponding to each of the L (L>4) SRS antenna ports of the SRS resource according to the configuration information, that is, the first transmission comb offset, and thus determine the frequency domain start position corresponding to each of the L SRS antenna ports through the first transmission comb offset to realize SRS resource mapping and SRS resource pattern.

[0420] The foregoing primarily describes the solutions of the embodiments of this application from a methodological perspective. It is understood that, in order to achieve the aforementioned functions, the terminal or network device includes corresponding hardware structures and / or software modules for executing each function. Those skilled in the art should readily recognize that, based on the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein, this application can be implemented in hardware or a combination of hardware and computer software. Whether a function is executed in a hardware or computer software-driven hardware manner depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0421] This application embodiment can divide a terminal or network device into functional units based on the above method examples. For example, each function can be divided into separate functional units, or two or more functions can be integrated into one processing unit. The integrated unit can be implemented in hardware or as a software program module. It should be noted that the unit division in this application embodiment is illustrative and only represents a logical functional division; in actual implementation, there may be other division methods.

[0422] When using integrated units, Figure 3 This is a functional unit block diagram of a reference signal resource mapping device according to an embodiment of this application. The reference signal resource mapping device 300 includes: an acquisition unit 301 and a determination unit 302.

[0423] It should be noted that the acquisition unit 301 can be a module unit used for transmitting and receiving signals, data, information, etc. The determination unit 302 can be a module unit used for processing signals, data, information, etc., and there are no specific limitations on this.

[0424] The reference signal resource mapping device 300 may further include a storage unit for storing computer program code or instructions executed by the reference signal resource mapping device 300. The storage unit may be a memory.

[0425] Additionally, it should be noted that the resource mapping device 300 for the reference signal can be a chip or a chip module.

[0426] The acquisition unit 301 and the determination unit 302 can be integrated into a single unit. For example, the acquisition unit 301 and the determination unit 302 can be integrated into a processing unit. The processing unit can be a processor or controller, such as a central processing unit (CPU), a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It can implement or execute the various exemplary logic blocks, modules, and circuits described in conjunction with the disclosure of this application. The processing unit can also be a combination that implements computational functions, such as including one or more microprocessor combinations, a combination of a DSP and a microprocessor, etc.

[0427] The acquisition unit 301 and the determination unit 302 can be separate units. For example, the acquisition unit 301 can be a communication unit. The communication unit can be a communication interface, transceiver, transceiver circuit, etc.

[0428] In specific implementation, the determining unit 302 is used to execute any step performed by the terminal as described in the above method embodiment, and when performing data transmission such as sending, it can optionally call the obtaining unit 301 to complete the corresponding operation. A detailed explanation follows.

[0429] Acquisition unit 301 is used to acquire configuration information;

[0430] The determining unit 302 is used to determine the first transmission comb offset corresponding to each of the L SRS antenna ports of the probe reference signal SRS resource according to the configuration information. The first transmission comb offset is used to determine the frequency domain start position corresponding to each of the L SRS antenna ports, and the value of L is an integer greater than 4.

[0431] It should be noted that, Figure 3 The specific implementation of each operation in the embodiments can be found in the description of the method embodiments shown above, and will not be repeated here.

[0432] Specifically, among the L SRS antenna ports, the first transmission comb offsets corresponding to all SRS antenna ports with odd port index numbers are the same.

[0433] In the L SRS antenna ports, the first transmission comb offset is the same for all SRS antenna ports with even port index numbers.

[0434] Specifically, the first transmission comb offset is the same for all SRS antenna ports in the L SRS antenna ports.

[0435] Specifically, among the L SRS antenna ports with odd port index numbers, the first transmission comb offsets corresponding to the SRS antenna ports with the first M port index numbers are the same, and...

[0436] Among the L SRS antenna ports, the SRS antenna ports with odd port index numbers have the same first transmission comb offset for the first N port index numbers, excluding the first M port index numbers. M is a positive integer, N is a positive integer, and M+N<L.

[0437] Specifically, among the L SRS antenna ports with even-numbered port indices, the first transmission comb offsets corresponding to the first P port indices are the same, and...

[0438] Among the L SRS antenna ports, those with even port index numbers have the same first transmission comb offset for the first T port index numbers (excluding the first P port index numbers), where P is a positive integer, T is a positive integer, and P+T<L.

[0439] Specifically, each of the L SRS antenna ports is mapped to the same orthogonal frequency division multiplexing symbol.

[0440] Specifically, among the L SRS antenna ports, the SRS antenna ports with the first S port index numbers are each mapped to the same first orthogonal frequency division multiplexing symbol, and

[0441] In the L SRS antenna ports, the SRS antenna ports with the index numbers other than the first S port index numbers are each mapped to the same second orthogonal frequency division multiplexing symbol, where S is a positive integer and S < L.

[0442] Specifically, the configuration information includes at least one of the following: number of transmission comb teeth, second transmission comb tooth offset, number of cycle displacements, and maximum number of cycle displacements.

[0443] Specifically, in determining the first transmission comb offset corresponding to each of the L probe reference signal (SRS) antenna ports based on the configuration information, the determining unit 302 is specifically used for:

[0444] The first transmission comb offset corresponding to each of the L SRS antenna ports is determined based on the number of transmission comb teeth and / or the second transmission comb tooth offset.

[0445] Specifically, in determining the first transmission comb offset corresponding to each of the L SRS antenna ports based on the number of transmission comb teeth and / or the second transmission comb tooth offset, the determining unit 302 is specifically used for:

[0446] The first transmission comb offset corresponding to each of the L SRS antenna ports is determined according to the first formula, which is:

[0447]

[0448] in, Represented as the first transmission comb offset, K TC This is expressed as the number of transmission comb teeth. This is represented as the offset of the second transmission comb tooth. It is a positive rational number or 0.

[0449] Specifically, in determining the first transmission comb offset corresponding to each of the L SRS antenna ports based on the number of transmission comb teeth and / or the second transmission comb tooth offset, the determining unit 302 is specifically used for:

[0450] The first transmission comb offset corresponding to each of the L SRS antenna ports is determined according to the second formula, which is:

[0451]

[0452] in, This is represented as the offset of the first transmission comb tooth. This is represented as the offset of the second transmission comb tooth.

[0453] Specifically, in determining the first transmission comb offset corresponding to each of the L probe reference signal (SRS) antenna ports based on the configuration information, the determining unit 302 is specifically used for:

[0454] The first transmission comb offset corresponding to each of the L SRS antenna ports is determined based on the number of transmission comb teeth, the second transmission comb tooth offset, the number of cycle displacements, and the maximum number of cycle displacements.

[0455] Specifically, in determining the first transmission comb offset corresponding to each of the L SRS antenna ports based on the number of transmission comb teeth, the second transmission comb tooth offset, the number of cycle displacements, and the maximum number of cycle displacements, the determining unit 302 is specifically used for:

[0456] The first transmission comb offset corresponding to each of the L SRS antenna ports is determined according to the third formula, which is:

[0457] and

[0458] in, Represented as the first transmission comb offset, K TC This is expressed as the number of transmission comb teeth. This is represented as the offset of the second transmission comb tooth. This is expressed as the number of cyclic displacements. This represents the maximum number of cycle displacements. It is a positive rational number or 0. It is a positive integer.

[0459] When using integrated units, Figure 4 This is a functional unit block diagram of another reference signal resource mapping device according to an embodiment of this application. The reference signal resource mapping device 400 includes: a transmitting unit 401.

[0460] It should be noted that the transmitting unit 401 can be a module unit used for transmitting and receiving signals, data, information, etc., and there are no specific restrictions on it.

[0461] The reference signal resource mapping device 400 may further include a storage unit for storing computer program code or instructions executed by the reference signal resource mapping device 400. The storage unit may be a memory.

[0462] Additionally, it should be noted that the resource mapping device 400 for the reference signal can be a chip or a chip module.

[0463] The reference signal resource mapping device 400 may further include a processing unit, which may be a processor or controller, such as a central processing unit (CPU), a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It may implement or execute the various exemplary logic blocks, modules, and circuits described in conjunction with the disclosure of this application. The processing unit may also be a combination that implements computational functions, such as including one or more microprocessor combinations, a combination of a DSP and a microprocessor, etc.

[0464] The transmitting unit 401 can be a communication unit. The communication unit can be a communication interface, transceiver, transceiver circuit, etc.

[0465] In specific implementation, the sending unit 401 is used to perform any of the steps performed by the network device as described in the above method embodiments. A detailed explanation follows.

[0466] The transmitting unit 401 is used to transmit configuration information, which is used to determine the first transmission comb offset corresponding to each of the L SRS antenna ports of the sounding reference signal (SRS) resource. The first transmission comb offset is used to determine the frequency domain start position corresponding to each of the L SRS antenna ports, where L is an integer greater than 4.

[0467] It should be noted that, Figure 4 The specific implementation of each operation in the embodiments can be found in the description of the method embodiments shown above, and will not be repeated here.

[0468] Specifically, among the L SRS antenna ports, the first transmission comb offsets corresponding to all SRS antenna ports with odd port index numbers are the same.

[0469] In the L SRS antenna ports, the first transmission comb offset is the same for all SRS antenna ports with even port index numbers.

[0470] Specifically, the first transmission comb offset is the same for all SRS antenna ports in the L SRS antenna ports.

[0471] Specifically, among the L SRS antenna ports with odd port index numbers, the first transmission comb offsets corresponding to the SRS antenna ports with the first M port index numbers are the same, and...

[0472] Among the L SRS antenna ports, the SRS antenna ports with odd port index numbers have the same first transmission comb offset for the first N port index numbers, excluding the first M port index numbers. M is a positive integer, N is a positive integer, and M+N<L.

[0473] Specifically, among the L SRS antenna ports with even-numbered port indices, the first transmission comb offsets corresponding to the first P port indices are the same, and...

[0474] Among the L SRS antenna ports, those with even port index numbers have the same first transmission comb offset for the first T port index numbers (excluding the first P port index numbers), where P is a positive integer, T is a positive integer, and P+T<L.

[0475] Specifically, each of the L SRS antenna ports is mapped to the same orthogonal frequency division multiplexing symbol.

[0476] Specifically, among the L SRS antenna ports, the SRS antenna ports with the first R port index numbers are each mapped to the same first orthogonal frequency division multiplexing symbol, and

[0477] In the L SRS antenna ports, the SRS antenna ports with the index numbers other than the first R port index numbers are each mapped to the same second orthogonal frequency division multiplexing symbol, where R is a positive integer and R < L.

[0478] Specifically, the configuration information includes at least one of the following:

[0479] Number of transmission comb teeth, second transmission comb tooth offset, number of cycle displacements, and maximum number of cycle displacements.

[0480] Please see Figure 5 , Figure 5 This is a schematic diagram of the structure of a terminal according to an embodiment of this application. The terminal 500 includes a processor 510, a memory 520, and a communication bus for connecting the processor 510 and the memory 520.

[0481] The memory 520 includes, but is not limited to, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM), or compact disc read-only memory (CD-ROM), and is used to store program code executed by terminal 500 and data transmitted.

[0482] Terminal 500 may also include a communication interface, which can be used to receive and send data.

[0483] Processor 510 can be one or more CPUs. If processor 510 is a CPU, the CPU can be a single-core CPU or a multi-core CPU.

[0484] The processor 510 in the terminal 500 is used to execute the computer program or instruction 521 stored in the memory 520 to perform the following operations: obtain configuration information; determine the first transmission comb offset corresponding to each of the L SRS antenna ports of the probe reference signal SRS resource according to the configuration information, the first transmission comb offset is used to determine the frequency domain start position corresponding to each of the L SRS antenna ports, and the value of L is an integer greater than 4.

[0485] It should be noted that the specific implementation of each operation can adopt the corresponding description of the method embodiments shown above. The terminal 500 can be used to execute the terminal-side method of the above method embodiments of this application, and will not be described in detail here.

[0486] Please see Figure 6 , Figure 6 This is a schematic diagram of the structure of a network device according to an embodiment of this application. The network device 600 includes a processor 610, a memory 620, and a communication bus for connecting the processor 610 and the memory 620.

[0487] The memory 620 includes, but is not limited to, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM), or compact disc read-only memory (CD-ROM), and is used to store program code executed by the network device 600 and data transmitted.

[0488] The network device 600 may also include a communication interface, which can be used to receive and send data.

[0489] The processor 610 can be one or more CPUs. If the processor 610 is a CPU, the CPU can be a single-core CPU or a multi-core CPU.

[0490] The processor 610 in the network device 600 is used to execute the computer program or instruction 621 stored in the memory 620 to perform the following operations: send configuration information, which is used to determine the first transmission comb offset corresponding to each of the L SRS antenna ports of the sounding reference signal (SRS) resource, and the first transmission comb offset is used to determine the frequency domain start position corresponding to each of the L SRS antenna ports, where L is an integer greater than 4.

[0491] It should be noted that the specific implementation of each operation can be described in the corresponding description of the method embodiments shown above. The network device 700 can be used to execute the network device side method of the above method embodiments of this application, and will not be described in detail here.

[0492] This application also provides a chip, including a processor, a memory, and a computer program or instructions stored in the memory, wherein the processor executes the computer program or instructions to implement the steps described in the above method embodiments.

[0493] This application also provides a chip module, including a transceiver component and a chip. The chip includes a processor, a memory, and a computer program or instructions stored in the memory, wherein the processor executes the computer program or instructions to implement the steps described in the above method embodiments.

[0494] This application also provides a computer-readable storage medium storing a computer program or instructions that, when executed, implement the steps described in the above method embodiments.

[0495] This application also provides a computer program product, including a computer program or instructions that, when executed, implement the steps described in the above method embodiments.

[0496] In the above embodiments, the descriptions of each embodiment in this application have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0497] The steps of the methods or algorithms described in the embodiments of this application can be implemented in hardware or by a processor executing software instructions. The software instructions can consist of corresponding software modules, which can be stored in RAM, flash memory, ROM, erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), registers, hard disks, portable hard disks, read-only optical discs (CD-ROMs), or any other form of storage medium known in the art. An exemplary storage medium is coupled to a processor, enabling the processor to read information from and write information to the storage medium. Of course, the storage medium can also be a component of the processor. The processor and storage medium can reside in an ASIC. Alternatively, the ASIC can reside in a terminal or management device. Of course, the processor and storage medium can also exist as discrete components in a terminal or management device.

[0498] Those skilled in the art will recognize that, in one or more of the examples above, the functions described in the embodiments of this application can be implemented, in whole or in part, by software, hardware, firmware, or any combination thereof. When implemented in software, it can be implemented, in whole or in part, in the form of a computer program product. This computer program product includes one or more computer instructions. When these computer program instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of this application are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions can be transmitted from one website, computer, server, or data center to another via wired (e.g., coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium can be any available medium accessible to a computer or a data storage device such as a server or data center that integrates one or more available media. The available media can be magnetic media (e.g., floppy disks, hard disks, magnetic tapes), optical media (e.g., digital video discs (DVDs)), or semiconductor media (e.g., solid-state disks (SSDs)).

[0499] The modules / units included in the various devices and products described in the above embodiments can be software modules / units, hardware modules / units, or a combination of both. For example, for devices and products applied to or integrated into a chip, all modules / units can be implemented using hardware methods such as circuits, or at least some modules / units can be implemented using software programs that run on a processor integrated within the chip, while the remaining (if any) modules / units can be implemented using hardware methods such as circuits. For devices and products applied to or integrated into a chip module, all modules / units can be implemented using hardware methods such as circuits. Different modules / units can be located in the same component (e.g., chip, circuit module, etc.) or different components of the chip module, or at least some modules / units can be implemented using hardware methods such as circuits. The components can be implemented using software programs that run on the processor integrated within the chip module. The remaining (if any) modules / units can be implemented using hardware methods such as circuits. For various devices and products applied to or integrated into the terminal, each of its components / units can be implemented using hardware methods such as circuits. Different modules / units can be located in the same component (e.g., chip, circuit module, etc.) or in different components within the terminal. Alternatively, at least some modules / units can be implemented using software programs that run on the processor integrated within the terminal, while the remaining (if any) modules / units can be implemented using hardware methods such as circuits.

[0500] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of the embodiments of this application. It should be understood that the above descriptions are merely specific embodiments of the embodiments of this application and are not intended to limit the protection scope of the embodiments of this application. Any modifications, equivalent substitutions, improvements, etc., made on the basis of the technical solutions of the embodiments of this application should be included within the protection scope of the embodiments of this application.

Claims

1. A resource mapping method for a reference signal, characterized in that, include: Obtain configuration information, which includes at least one of the following: number of transmission comb teeth, second transmission comb tooth offset, number of cycle displacements, and maximum number of cycle displacements; The first transmission comb offset corresponding to each of the L SRS antenna ports of the SRS resource is determined according to the first formula, which is: Alternatively, the first formula is: Alternatively, the first transmission comb offset corresponding to each of the L SRS antenna ports of the SRS resource can be determined according to the third formula, which is: Alternatively, the third formula is: Wherein, the first transmission comb offset is used to determine the frequency domain start position corresponding to each of the L SRS antenna ports, where L is... p i Let i be the port index number of SRS antenna port i among the L SRS antenna ports, where i∈{0,1,...,L-1}. K represents the offset of the first transmission comb corresponding to SRS antenna port i. TC This is expressed as the number of transmission comb teeth. This is represented as the offset of the second transmission comb teeth. This is represented by the number of cyclic displacements. This is expressed as the maximum number of cyclic displacements. It equals 6, 8, or 12.

2. The method according to claim 1, characterized in that, Among the L SRS antenna ports, the first transmission comb offset corresponding to all SRS antenna ports with odd port index numbers is the same; Among the L SRS antenna ports, the first transmission comb offset is the same for all SRS antenna ports with even port index numbers.

3. The method according to claim 1, characterized in that, The first transmission comb offset is the same for all SRS antenna ports in the L SRS antenna ports.

4. The method according to claim 1, characterized in that, Among the L SRS antenna ports, those with odd port index numbers have the same first transmission comb offset for each of the first M port index numbers. Among the L SRS antenna ports, those with odd port index numbers have the same first transmission comb offset for the first N port index numbers (excluding the first M port index numbers), where M is a positive integer, N is a positive integer, and M+N<L.

5. The method according to claim 1, characterized in that, Among the L SRS antenna ports, those with even-numbered port indices have the same first transmission comb offset for each of the first P port indices. Among the L SRS antenna ports, those with even port index numbers have the same first transmission comb offset for the first T port index numbers (excluding the first P port index numbers), where P is a positive integer, T is a positive integer, and P+T<L.

6. The method according to claim 1, characterized in that, The L SRS antenna ports are each mapped to the same orthogonal frequency division multiplexing symbol.

7. The method according to claim 1, characterized in that, Of the L SRS antenna ports, the SRS antenna ports with the first S port index numbers are each mapped to the same first orthogonal frequency division multiplexing symbol, and Among the L SRS antenna ports, the SRS antenna ports with the other port index numbers, except for the S port index numbers of the first S ports, are each mapped to the same second orthogonal frequency division multiplexing symbol, where S is a positive integer and S < L.

8. A resource mapping method for a reference signal, characterized in that, include: Send configuration information, which includes at least one of the following: number of transmission comb teeth, second transmission comb tooth offset, number of cycle displacements, and maximum number of cycle displacements. The configuration information is used to determine the first transmission comb tooth offset corresponding to each of the L SRS antenna ports of the sounding reference signal (SRS) resource. The first transmission comb tooth offset is used to determine the frequency domain start position corresponding to each of the L SRS antenna ports. The first transmission comb offset corresponding to each of the L SRS antenna ports is determined by a first formula, which is: Alternatively, the first formula is: Alternatively, the first transmission comb offset corresponding to each of the L SRS antenna ports is determined by a third formula, which is: Alternatively, the third formula is: Where L is p i Let i be the port index number of SRS antenna port i among the L SRS antenna ports, where i∈{0,1,...,L-1}. K represents the offset of the first transmission comb corresponding to SRS antenna port i. TC This is expressed as the number of transmission comb teeth. This is represented as the offset of the second transmission comb teeth. This is represented by the number of cyclic displacements. This is expressed as the maximum number of cyclic displacements. It equals 6, 8, or 12.

9. The method according to claim 8, characterized in that, Among the L SRS antenna ports, the first transmission comb offset corresponding to all SRS antenna ports with odd port index numbers is the same; Among the L SRS antenna ports, the first transmission comb offset is the same for all SRS antenna ports with even port index numbers.

10. The method according to claim 8, characterized in that, The first transmission comb offset is the same for all SRS antenna ports in the L SRS antenna ports.

11. The method according to claim 8, characterized in that, Among the L SRS antenna ports, those with odd port index numbers have the same first transmission comb offset for each of the first M port index numbers. Among the L SRS antenna ports, those with odd port index numbers have the same first transmission comb offset for the first N port index numbers (excluding the first M port index numbers), where M is a positive integer, N is a positive integer, and M+N<L.

12. The method according to claim 8, characterized in that, Among the L SRS antenna ports, those with even-numbered port indices have the same first transmission comb offset for each of the first P port indices. Among the L SRS antenna ports, those with even port index numbers have the same first transmission comb offset for the first T port index numbers (excluding the first P port index numbers), where P is a positive integer, T is a positive integer, and P+T<L.

13. The method according to claim 8, characterized in that, The L SRS antenna ports are each mapped to the same orthogonal frequency division multiplexing symbol.

14. The method according to claim 8, characterized in that, Of the L SRS antenna ports, the SRS antenna ports with the first R port index numbers are each mapped to the same first orthogonal frequency division multiplexing symbol, and Among the L SRS antenna ports, the SRS antenna ports with the other port index numbers, except for the SRS antenna ports with the first R port index numbers, are each mapped to the same second orthogonal frequency division multiplexing symbol, where R is a positive integer and R < L.

15. A resource mapping apparatus for a reference signal, characterized in that, include: The acquisition unit is used to acquire configuration information, which includes at least one of the following: number of transmission comb teeth, second transmission comb tooth offset, number of cycle displacements, and maximum number of cycle displacements. The determining unit is configured to determine the first transmission comb offset corresponding to each of the L SRS antenna ports of the sounding reference signal (SRS) resource according to a first formula, wherein the first formula is: Alternatively, the first formula is: and Alternatively, the first transmission comb offset corresponding to each of the L SRS antenna ports of the SRS resource can be determined according to the third formula, which is: Alternatively, the third formula is: Wherein, the first transmission comb offset is used to determine the frequency domain start position corresponding to each of the L SRS antenna ports, where L is... p i Let i be the port index number of SRS antenna port i among the L SRS antenna ports, where i∈{0,1,...,L-1}. K represents the offset of the first transmission comb corresponding to SRS antenna port i. TC This is expressed as the number of transmission comb teeth. This is represented as the offset of the second transmission comb teeth. This is represented by the number of cyclic displacements. This is expressed as the maximum number of cyclic displacements. It equals 6, 8, or 12.

16. A resource mapping apparatus for a reference signal, characterized in that, include: The transmitting unit is used to transmit configuration information, which includes at least one of the following: number of transmission comb teeth, second transmission comb tooth offset, number of cycle displacements, and maximum number of cycle displacements. The configuration information is used to determine the first transmission comb tooth offset corresponding to each of the L SRS antenna ports of the sounding reference signal (SRS) resource. The first transmission comb tooth offset is used to determine the frequency domain start position corresponding to each of the L SRS antenna ports. The first transmission comb offset corresponding to each of the L SRS antenna ports is determined by a first formula, which is: Alternatively, the first formula is: and Alternatively, the first transmission comb offset corresponding to each of the L SRS antenna ports is determined by a third formula, which is: Alternatively, the third formula is: and Where L is p i Let i be the port index number of SRS antenna port i among the L SRS antenna ports, where i∈{0,1,...,L-1}. K represents the offset of the first transmission comb corresponding to SRS antenna port i. TC This is expressed as the number of transmission comb teeth. This is represented as the offset of the second transmission comb teeth. This is represented by the number of cyclic displacements. This is expressed as the maximum number of cyclic displacements. It equals 6, 8, or 12.

17. A terminal, comprising a processor, a memory, and a computer program or instructions stored in the memory, characterized in that, The processor executes the computer program or instructions to implement the steps of the method according to any one of claims 1-7.

18. A network device, comprising a processor, a memory, and a computer program or instructions stored in the memory, characterized in that, The processor executes the computer program or instructions to implement the steps of the method according to any one of claims 8-14.

19. A computer-readable storage medium, characterized in that, It stores a computer program or instructions that, when executed, implement the steps of the method described in any one of claims 1-7 or 8-14.

20. A chip, comprising a processor, characterized in that, The processor performs the steps of the method according to any one of claims 1-7 or 8-14.

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