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WO2025044997A1 - Procédé d'émission d'un signal de référence et appareil associé - Google Patents

Procédé d'émission d'un signal de référence et appareil associé Download PDF

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Publication number
WO2025044997A1
WO2025044997A1 PCT/CN2024/114616 CN2024114616W WO2025044997A1 WO 2025044997 A1 WO2025044997 A1 WO 2025044997A1 CN 2024114616 W CN2024114616 W CN 2024114616W WO 2025044997 A1 WO2025044997 A1 WO 2025044997A1
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WIPO (PCT)
Prior art keywords
port
ports
srs
value
comb tooth
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PCT/CN2024/114616
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English (en)
Chinese (zh)
Inventor
高翔
张紫剑
张哲宁
董昶钊
刘鹍鹏
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Publication of WO2025044997A1 publication Critical patent/WO2025044997A1/fr
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path

Definitions

  • the present application relates to the field of communications, and in particular to a reference signal transmission method and related devices.
  • network devices can configure reference signal resources for terminal devices. Accordingly, the terminal devices send reference signals to the network devices based on the reference signal resources. The network devices can obtain uplink channel information based on the received reference signals, and can even use channel reciprocity to obtain downlink channel information.
  • the network equipment can configure SRS resources for the terminal equipment.
  • One SRS resource can correspond to one or more ports.
  • the terminal equipment can send different SRSs through the SRS resources of different ports.
  • one SRS resource can correspond to two ports, and the SRS resources of two ports may not meet the needs of users.
  • the present application provides a reference signal transmission method and related devices, so as to transmit SRSs of three ports when one SRS resource corresponds to three ports.
  • the present application provides a method for transmitting a reference signal, which can be executed by a terminal device, or by a component configured in the terminal device (such as a chip, a chip system, etc.), or by a logic module or software that can implement all or part of the terminal device functions, and the present application does not limit this.
  • the method includes: receiving configuration information of an SRS resource, the SRS resource corresponding to three ports, the configuration information including a maximum number of CS values Comb offset (CO) of the reference port And the cyclic shift (CS) value of the reference port
  • the reference port is a predefined port among the three ports; and SRS resources corresponding to the three ports are sent to the network device.
  • the above configuration information may be used to indicate the CS values and comb tooth offsets corresponding to the three ports respectively.
  • the terminal device can receive the configuration information of the SRS resource, and determine the CS value and comb tooth offset of each of the three ports corresponding to the SRS resource based on the maximum number of CS values included in the configuration information, the comb tooth offset of the reference port, and the CS value of the reference port. In this way, the terminal device can generate the SRS of the three ports based on the CS values and comb tooth offsets corresponding to the three ports, and then send the SRS resources corresponding to the three ports to the network device.
  • the present application provides a method for transmitting a reference signal, which can be executed by a network device, or by a component configured in the network device (such as a chip, a chip system, etc.), or by a logic module or software that can implement all or part of the functions of the network device, and the present application does not limit this.
  • the method includes: sending configuration information of SRS resources to the terminal device, the SRS resources corresponding to three ports, the configuration information including the maximum number of CS values Comb offsets for predefined reference ports And the CS value of the reference port Receive SRS resources corresponding to the above three ports.
  • the above configuration information can be used to indicate the CS value and comb offset corresponding to each of the above three ports.
  • the network device can send the configuration information of the SRS resource to the terminal device to indicate the maximum number of CS values, the comb offset of the reference port and the CS value of the reference port.
  • the terminal device can The configuration information determines the CS value and comb offset corresponding to each of the three ports, generates the SRS of the three ports, and then facilitates the terminal device to send the SRS resources corresponding to the above three ports to the network device. Accordingly, the network device can receive the SRS resources corresponding to the above three ports.
  • the comb tooth offset of the reference port can be understood as the reference comb tooth offset, which is used to determine the comb tooth offset values corresponding to the above three ports, where K TC represents the comb tooth degree.
  • the CS value of the reference port can be understood as the reference CS value, which is used to determine the CS values corresponding to the above three ports. and This can be configured via the high-level parameter "transmissionComb".
  • the minimum value of the difference between any two CS values among the X CS values corresponding to the X ports is or Wherein, X is an integer less than or equal to 3 and greater than 1.
  • the frequency domain resources of the SRS of the X ports among the above three ports correspond to the same comb tooth offset. It can be understood that the frequency domain resources of the SRS of the X ports among the above three ports are determined by the same comb tooth offset, or in other words, the X ports among the above three ports correspond to the same comb tooth offset.
  • the frequency domain resources of the SRS of the first port and the second port among the three ports correspond to different comb tooth offsets with the frequency domain resources of the SRS of the third port among the three ports, wherein the reference port is the first port or the second port.
  • the frequency domain resources of the SRS of the first port and the second port among the above three ports correspond to different comb tooth offsets from the frequency domain resources of the SRS of the third port among the above three ports.
  • the comb tooth offsets corresponding to the first port and the second port are different from the comb tooth offsets corresponding to the third port, or in other words, the frequency domain resources of the SRS of the first port and the second port are determined by one comb tooth offset, and the frequency domain resources of the SRS of the third port are determined by another comb tooth offset.
  • the difference between the CS value corresponding to the third port and the CS value of the reference port changes as the CS value of the reference port changes.
  • the CS value corresponding to the third port is related to the CS value of the reference port, or when the CS value of the reference port is different, the difference between the CS value corresponding to the third port and the CS value of the reference port is different. That is, if the CS value of the configured reference port changes, the CS value corresponding to the third port will also change accordingly.
  • the CS value corresponding to the third port satisfy: m is an integer, and mod represents the remainder operation. It can be seen that if the CS values of the reference ports of different SRS resources are If the reference ports of different SRS resources have different CS values, then the CS value corresponding to the third port is also different. In addition, if the CS values corresponding to the reference ports of different SRS resources are different, then due to the fact that the CS value corresponding to the third port has Therefore, the difference corresponding to the third ports of different SRS resources is greater than or equal to 2. In other words, there is an interval between the CS values corresponding to the third ports of different SRS resources.
  • the CS value of the interval can correspond to the SRS resources of other types of ports (such as four ports, or two ports, etc.), which is conducive to improving the resource
  • the interval helps to reduce the possibility of conflict between SRS resources of ports of different types.
  • the CS value corresponding to the port number pi among the three ports is Satisfies the following formula:
  • mod represents the remainder operation
  • the value of pi is 1000, 1001 or 1002
  • the port number 1000 is the reference port.
  • the comb offset corresponding to the port numbered pi among the three ports is Satisfies the following formula: in, It indicates that the number of ports is 3, K TC indicates the comb tooth degree, mod indicates the modulo operation, and the port number 1000 is the reference port.
  • the frequency domain resources of the SRS of each of the three ports correspond to the same comb tooth offset.
  • the frequency domain resources of the SRS of each of the three ports correspond to the same comb tooth offset, which can be understood as the comb tooth offsets corresponding to each of the three ports are the same, or the frequency domain resources of the SRS of each of the three ports are determined by the same comb tooth offset.
  • mod represents the remainder operation
  • the value of pi is 1000, 1001 or 1002
  • the port number 1000 is the reference port.
  • the frequency domain resources of the SRS of each of the three ports correspond to three different comb tooth offsets.
  • the frequency domain resources of the SRS of each of the above three ports correspond to three different comb tooth offsets. It can be understood that the comb tooth offsets corresponding to each of the above three ports are different, or in other words, the frequency domain resources of the SRS of each of the above three ports are determined by three different comb tooth offsets.
  • the comb tooth offset corresponding to the frequency domain resource of the SRS of each of the three ports satisfies the following formula:
  • the number of comb tooth offsets corresponding to the frequency domain resources of the SRS of the three ports is predefined or indicated by the network device.
  • the number of comb tooth offsets corresponding to the frequency domain resources of the SRS of the three ports is indicated by the network device, the number of comb tooth offsets corresponding to the frequency domain resources of the SRS of the three ports is related to the value range of the CS value of the reference port.
  • the network device can flexibly indicate the number of comb tooth offsets corresponding to the frequency domain resources of the SRS of the three ports of the terminal device based on the value range of the CS value of the reference port, thereby facilitating the terminal device to select a method for determining the CS value corresponding to each port based on the design of the number of comb tooth offsets.
  • the present application provides a communication device that can implement the method described in the first aspect and any possible implementation of the first aspect, or implement the method described in the second aspect and any possible implementation of the second aspect.
  • the device includes a corresponding module for executing the above method.
  • the module included in the device can be implemented by software and/or hardware.
  • the present application provides a communication device, the device comprising a processor.
  • the processor is coupled to a memory and can be used to execute a computer program in the memory to implement the method in the first aspect and any possible implementation of the first aspect, or to implement the method in the second aspect and any possible implementation of the second aspect.
  • the device further comprises a communication interface, and the processor is coupled to the communication interface.
  • the communication interface is used to receive a signal from other communication devices outside the device and transmit it to the processor, or send a signal from the processor to other communication devices outside the device.
  • the communication interface can be a transceiver, circuit, bus, module or other type of communication interface.
  • the device further comprises a memory, and the processor is coupled to the memory.
  • the memory is used to store program instructions and data.
  • the present application provides a computer-readable storage medium, which stores a computer program or instruction.
  • the computer program or instruction When executed, it implements the method in the first aspect and any possible implementation of the first aspect, or implements the method in the second aspect and any possible implementation of the second aspect.
  • the present application provides a computer program product comprising instructions, which, when executed, implement the method in the first aspect and any possible implementation of the first aspect, or implement the method in the second aspect and any possible implementation of the second aspect.
  • the present application provides a chip system, which includes at least one processor for supporting the implementation of the functions involved in the above-mentioned first aspect and any possible implementation method of the first aspect, or for supporting the implementation of the functions involved in the above-mentioned second aspect and any possible implementation method of the second aspect, for example, receiving or processing the data involved in the above-mentioned method, etc.
  • the chip system also includes a memory, which is used to store program instructions and data, and the memory is located inside or outside the processor.
  • the chip system may be composed of the chip, or may include the chip and other discrete devices.
  • the present application provides a communication system, comprising a terminal device for implementing the method described in the first aspect and any possible implementation manner of the first aspect, and a network device for implementing the method described in the second aspect and any possible implementation manner of the second aspect.
  • FIG1 is a schematic diagram of frequency domain resources of SRS
  • FIG2 is a schematic diagram of SRS occupying frequency domain resources provided in an embodiment of the present application.
  • FIG3 is a schematic diagram of channel responses corresponding to four ports of SRS resources provided in an embodiment of the present application.
  • FIG4 is a schematic flow chart of a reference signal transmission method provided in an embodiment of the present application.
  • FIG5 is a schematic diagram of CS values corresponding to various ports provided in an embodiment of the present application.
  • FIG6 is another schematic diagram of CS values corresponding to various ports provided in an embodiment of the present application.
  • FIG. 7 is a schematic diagram of CS values corresponding to each port when SRS resources provided in an embodiment of the present application correspond to different numbers of ports;
  • FIG. 8 is another schematic diagram of CS values corresponding to each port when SRS resources provided in an embodiment of the present application correspond to different numbers of ports;
  • FIG9 is another schematic diagram of CS values corresponding to various ports provided in an embodiment of the present application.
  • FIG10 is another schematic diagram of CS values corresponding to various ports provided in an embodiment of the present application.
  • FIG. 11 is a schematic diagram of CS values corresponding to SRS resources of different ports provided in an embodiment of the present application.
  • FIG12 is a schematic block diagram of a communication device provided in an embodiment of the present application.
  • FIG13 is another schematic block diagram of a communication device provided in an embodiment of the present application.
  • FIG14 is a schematic diagram of the structure of a network device provided in an embodiment of the present application.
  • FIG. 15 is a schematic diagram of the structure of a terminal device provided in an embodiment of the present application.
  • LTE long term evolution
  • FDD frequency division duplex
  • TDD LTE time division duplex
  • UMTS universal mobile telecommunication system
  • WiMAX worldwide interoperability for microwave access
  • 5G mobile communication system may include non-standalone (NSA) and/or standalone (SA).
  • the technical solution provided in this application can also be applied to future communication systems, such as the sixth generation (6th Generation, 6G) mobile communication system, etc. This application does not limit this.
  • network equipment network equipment and terminal equipment.
  • the network device may be any device with wireless transceiver function.
  • the network device includes but is not limited to: evolved Node B (eNB), radio network controller (RNC), Node B (NB), base station controller (BSC), base transceiver station (BTS), home base station (e.g., home evolved Node B, or home Node B, HNB), baseband unit (BBU), wireless fidelity (wireless fidget) and wireless cellular network controller (RNC).
  • eNB evolved Node B
  • RNC radio network controller
  • NB Node B
  • BSC base station controller
  • BTS base transceiver station
  • home base station e.g., home evolved Node B, or home Node B, HNB
  • BBU baseband unit
  • wireless fidelity wireless fidget
  • wireless cellular network controller RNC
  • the network device may be an access point (AP), wireless relay node, wireless backhaul node, transmission point (TP) or transmission and reception point (TRP) in a wireless cellular (Wi-Fi) system, or a gNB or transmission point (TRP or TP) in a 5G (such as NR) system, or one or a group of antenna panels (including multiple antenna panels) of a base station in a 5G system, or a network node constituting a gNB or transmission point, such as a baseband unit (BBU) or a distributed unit (DU).
  • the network device may also be a wireless controller in a cloud radio access network (CRAN) scenario.
  • CRAN cloud radio access network
  • the terminal device may also be referred to as user equipment (UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device.
  • UE user equipment
  • the terminal device may be a device that provides voice/data connectivity to the user, for example, a handheld device with wireless connection function, a vehicle-mounted device, etc.
  • some examples of terminal devices may be: mobile phones, tablet computers (pad), computers with wireless transceiver functions (such as laptops, PDAs, etc.), mobile Internet devices (mobile internet devices, MIDs), virtual reality (VR) devices, augmented reality (AR) devices, wireless terminals in industrial control, wireless terminals in self-driving, drones, wireless terminals in remote medical, wireless terminals in smart grids, transportation security (transportation security), etc.
  • the invention relates to wireless terminals in smart cities, smart homes, cellular phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDAs), handheld devices with wireless communication functions, computing devices or other processing devices connected to wireless modems, vehicle-mounted devices, wearable devices, terminal devices in 5G networks, or terminal devices in future evolved public land mobile communication networks (PLMNs), etc.
  • SIP session initiation protocol
  • WLL wireless local loop
  • PDAs personal digital assistants
  • handheld devices with wireless communication functions computing devices or other processing devices connected to wireless modems
  • vehicle-mounted devices wearable devices
  • terminal devices in 5G networks or terminal devices in future evolved public land mobile communication networks (PLMNs)
  • PLMNs public land mobile communication networks
  • wearable devices can also be called wearable smart devices, which are a general term for the intelligent design and development of wearable devices for daily wear using wearable technology, such as glasses, gloves, watches, clothing and shoes.
  • Wearable devices are portable devices that are worn directly on the body or integrated into the user's clothes or accessories.
  • Wearable devices are not only hardware devices, but also realize powerful functions through software support, data interaction, and cloud interaction.
  • wearable smart devices include full-featured, large-sized, and independent of smartphones to achieve complete or partial functions, such as smart watches or smart glasses, as well as those that only focus on a certain type of application function and need to be used in conjunction with other devices such as smartphones, such as various smart bracelets and smart jewelry for vital sign monitoring.
  • the terminal device can also be a terminal device in the Internet of Things (IoT) system.
  • IoT Internet of Things
  • Its main technical feature is to connect objects to the network through communication technology, thereby realizing an intelligent network of human-machine interconnection and object-to-object interconnection.
  • IoT technology can achieve massive connections, deep coverage, and terminal power saving through narrow band (NB) technology, for example.
  • NB narrow band
  • terminal devices can also include sensors such as smart printers, train detectors, and gas stations. Their main functions include collecting data (part of the terminal equipment), receiving control information and downlink data from network devices, and sending electromagnetic waves to transmit uplink data to network devices.
  • sensors such as smart printers, train detectors, and gas stations.
  • Their main functions include collecting data (part of the terminal equipment), receiving control information and downlink data from network devices, and sending electromagnetic waves to transmit uplink data to network devices.
  • the words “first”, “second”, etc. are used to distinguish the same items or similar items with basically the same functions and effects.
  • the first port and the second port are only used to distinguish different ports, and their order is not limited.
  • the words “first”, “second”, etc. do not limit the quantity and execution order, and the words “first”, “second”, etc. do not necessarily limit them to be different.
  • the “protocol” involved in the embodiments of the present application may refer to a standard protocol in the communication field, for example, it may include an LTE protocol, an NR protocol, and related protocols used in future communication systems, which is not limited in the present application.
  • At least one means one or more, and “plurality” means two or more.
  • “And/or” describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and/or B can mean: A exists alone, A and B exist at the same time, and B exists alone, where A and B can be singular or plural. The character “/” generally indicates that the previous and next associated objects are in an “or” relationship. "At least one of the following items” or similar expressions refers to any combination of these items, including any combination of single items or plural items.
  • At least one of a, b and c can mean: a, or b, or c, or a and b, or a and c, or b and c, or a, b and c, where a, b, c can be single or multiple.
  • the offset may be used to indicate the degree of offset between two objects, or the distance between two objects.
  • the subcarrier offset may be obtained by subtracting the numbers of two subcarriers.
  • indication includes direct indication (also called explicit indication) and implicit indication (also called indirect indication).
  • direct indication of information A means including the information A;
  • implicit indication of information A means indicating information A through the correspondence between information A and information B and direct indication of information B.
  • the correspondence between information A and information B can be predefined, pre-stored, pre-burned, or pre-configured.
  • information C is used to determine information D, which includes information D being determined based only on information C, and information D being determined based on information C and other information.
  • information C is used to determine information D, and it can also be indirectly determined, for example, information D is determined based on information E, and information E is determined based on information C.
  • "send” and “receive” in this application indicate the direction of signal transmission.
  • “send information to a terminal device” can be It can be understood that the destination of the information is the terminal device, which can include direct transmission through the air interface, and also include indirect transmission through the air interface from other units or modules.
  • "Receiving information from a network device” can be understood as the source of the information is the network device, which can include direct reception from the network device through the air interface, and also include indirect reception from the network device through the air interface from other units or modules.
  • “Sending” can also be understood as the "output” of the chip interface, and “receiving” can also be understood as the "input” of the chip interface.
  • sending and receiving can be performed between devices, for example, between a network device and a terminal device; it can also be performed within a device, for example, sending or receiving between components, modules, chips, software modules or hardware modules within the device through a bus, wiring or interface.
  • the maximum number of CS values can be, for example, 6, 8, 12, etc.
  • the CS value of the predefined reference port where It should be understood that in this application, the CS value of the reference port can be understood as a reference CS value, which is used to determine the CS values corresponding to each of the above three ports.
  • the CS value of the reference port is also called the CS parameter of the reference port, or the CS index of the reference port.
  • the CS value corresponding to the port with port number pi is It can be understood as a cyclic shift parameter, rather than the actual cyclic shift corresponding to the port.
  • the actual cyclic shift corresponding to the port it is necessary to determine it based on the cyclic shift parameter.
  • the actual cyclic shift corresponding to the port with port number pi is The CS value corresponding to the port with port number pi is also called the CS parameter corresponding to the port with port number pi, or the CS index corresponding to the port with port number pi.
  • the CS value can be replaced by the CS parameter and the CS index, and the three have the same meaning.
  • the number of ports corresponding to the SRS resources is 3.
  • K TC Comb degree.
  • the value of the comb degree may be, for example, 2, 4 or 8.
  • the comb degree characterizes the frequency domain density of the SRS mapped in the frequency domain subcarriers, and the value of the comb degree may be the index difference of the adjacent subcarriers mapped by the SRS.
  • mod remainder operation, which indicates the remainder after dividing two numerical expressions.
  • the format of the remainder function can be mod(x, y) or x mod y, which indicates the remainder after dividing x and y. This application does not limit its format.
  • L is not an integer, represents the largest integer less than L. For example,
  • L is not an integer, represents the smallest integer greater than L. For example, It is understood that in this application, if L is an integer, then or
  • the solution provided in this application is described by taking SRS as an example, but this should not constitute any limitation to this application.
  • the technical solution provided in this application can also be applied to other types of reference signals, such as demodulation reference signal (DMRS), phase tracking reference signal (PTRS), tracking reference signal (TRS), channel state information-reference signal (CSI-RS), etc.
  • DMRS demodulation reference signal
  • PTRS phase tracking reference signal
  • TRS tracking reference signal
  • CSI-RS channel state information-reference signal
  • the port numbers involved in this application (such as 1000, 1001, 1002) can also be replaced by other numbers, and this application does not limit this.
  • SRS It is an uplink reference signal sent by a terminal device to a network device. After receiving the SRS, the network device can obtain uplink channel information based on the SRS, and can even use channel reciprocity (such as in a TDD system) to obtain downlink channel information. After the network device obtains the downlink channel information corresponding to the terminal device, it can perform data transmission resource scheduling or precoding processing on the terminal device according to the downlink channel information.
  • Port It can be understood as a transmitting antenna recognized by the receiving end, or a transmitting antenna that can be distinguished in space.
  • the transmitting antenna can be a virtual antenna or a spatial resource.
  • the receiving end can be a network device or a terminal device.
  • an antenna port can correspond, and each virtual antenna can be a weighted combination of multiple physical antennas.
  • the port can also be called an SRS port or an antenna port, and this application does not limit the specific name of the port.
  • the port can carry SRS, and each port corresponds to an SRS. Different ports can be multiplexed by code division, frequency division, time division or space division.
  • an SRS resource can correspond to one, two or four ports, and each port can be configured with its own time domain, frequency domain, and code domain resources. Usually, each port will occupy different time domain, frequency domain, and code domain resources to reduce mutual interference. Each port can correspond to a physical antenna or a virtual antenna of a terminal device, and this application does not limit this.
  • CS For different ports, the terminal device can send signals on the same time-frequency resources by code division multiplexing (equivalent to different CS, that is, different CS values).
  • code division multiplexing equivalent to different CS, that is, different CS values.
  • One possible implementation method is to multiply the SRS sequence in the frequency domain by a phase shift factor (here referred to as CS), which is equivalent to generating a cyclic shift offset for the SRS sequence in the time domain, and the maximum delay of the channel is often limited, so code division orthogonality of different ports can be achieved.
  • CS phase shift factor
  • different ports correspond to different CS values, which act on the SRS sequence, so that the SRS of different ports are different.
  • Comb tooth offset It can also be called comb tooth offset value, comb tooth value, comb tooth index, etc., and this application does not limit its name.
  • Different comb tooth offsets represent different subcarrier groups or subcarrier positions, and each subcarrier in the subcarrier group is equally spaced.
  • Each subcarrier in the subcarrier group can be regarded as each comb tooth in a comb, and the comb tooth degree refers to the difference between the numbers of every two adjacent subcarriers in the subcarrier group.
  • the position of each subcarrier in the subcarrier group used to carry SRS can be determined based on the comb tooth offset and the comb tooth degree.
  • Fig. 1 is a schematic diagram of frequency domain resources of SRS. a), b) and c) of Fig. 1 respectively show the distribution of frequency domain resources of SRS under different comb tooth degrees.
  • the white part indicates the position of each subcarrier when the comb tooth offset is 1.
  • the first subcarrier is numbered 1
  • the first subcarrier is numbered 0
  • the white part indicates the position of each subcarrier when the comb tooth offset is 1, 2, and 3.
  • the comb tooth offset is 2 and 3
  • the calculation method of the number of each subcarrier is similar, and will not be described in detail here.
  • the first subcarrier is numbered 0
  • the white part indicates the position of each subcarrier when the comb tooth offset is 1 to 7, which will not be described in detail here.
  • SRS measurement bandwidth is the total bandwidth of the channel measurement performed by the network device through SRS.
  • the SRS resource can send signals on the entire measurement bandwidth or on a portion of the measurement bandwidth.
  • the signal is sent only on a portion of the measurement bandwidth, it is called SRS frequency hopping transmission, and the length of the partial bandwidth sent each time is the frequency hopping bandwidth.
  • the network device can obtain the channel corresponding to the entire SRS measurement bandwidth.
  • a grid represents a subband in the frequency domain (for example, it can be a resource block (RB)), the measurement bandwidth of SRS is 16RB, and the frequency hopping bandwidth of SRS is 4RB.
  • the terminal device sends SRS four times, and the network device can complete the measurement of the bandwidth.
  • the network device can configure SRS resources for the terminal device.
  • the SRS resources can correspond to one or more ports.
  • the number of ports corresponding to the SRS resources can be set by the parameter The value of this parameter can be 1, 2 or 4.
  • the SRS sequence corresponding to the port with the port number pi among the multiple ports satisfies the following formula:
  • v and u are the numbers of a base sequence in the SRS base sequence group, respectively.
  • v and u are the numbers of a base sequence in the SRS base sequence group, respectively.
  • These 30 base sequences are further divided into 30 base sequence groups, each group corresponding to a group number u, u ⁇ 0, 1..., 29 ⁇ .
  • each base sequence group further contains 1 or 2 base sequences, corresponding to sequence numbers v, u ⁇ 0, 1 ⁇ , respectively.
  • ⁇ log 2 (K TC ).
  • K TC represents the comb tooth degree. Indicates the length of the SRS sequence, in is the number of subcarriers in an RB, s is the number of RBs occupied by SRS in one frequency hopping transmission, and n is the number of sequence elements.
  • K TC It is configured jointly with K TC .
  • the corresponding relationship between K TC and K TC is shown in Table 1.
  • the CS value corresponding to the port number pi is It can be understood as a cyclic shift parameter, rather than the actual cyclic shift ⁇ i corresponding to the port.
  • the cyclic shift parameter (ie ) determines, for example, the actual cyclic shift corresponding to the port number pi
  • the actual cyclic shift ⁇ i corresponding to the port here can be considered as a phase offset factor multiplied by the SRS sequence in the frequency domain, which is equivalent to the offset of the cyclic shift generated by the SRS sequence in the time domain.
  • one port corresponds to one comb tooth offset.
  • the comb tooth offset corresponding to the port number pi satisfies the following formula:
  • FIG3 is a schematic diagram of channel responses corresponding to four ports of SRS resources provided in an embodiment of the present application.
  • the network device can configure SRS resources for the terminal device.
  • One SRS resource can correspond to one or more ports.
  • the terminal device can send different SRSs through the SRS resources of different ports. Two ports, but the SRS resources of two ports may not be able to meet user needs, but it is difficult to evolve to four ports in the short term. Therefore, three ports have attracted attention from the industry as a potential important evolution form.
  • the present application provides a method for transmitting a reference signal, wherein a terminal device can receive configuration information of an SRS resource, and determine the CS value and comb tooth offset of each of the three ports corresponding to the SRS resource based on the maximum number of CS values included in the configuration information, the comb tooth offset of the reference port, and the CS value of the reference port.
  • the terminal device can generate the SRS of the three ports based on the CS values and comb tooth offsets corresponding to the three ports, and then send the SRS resources corresponding to the three ports to the network device.
  • the embodiment shown below describes the method from the perspective of the interaction between the terminal device and the network device, but should not constitute any limitation on the execution subject of the method.
  • the program that can run the code of the method provided by the embodiment of the present application can be executed.
  • the terminal device can also be replaced by a component configured in the terminal device (such as a chip, a chip system, etc.), or other functional modules that can call and execute programs
  • the network device can also be replaced by a component configured in the network device (such as a chip, a chip system, etc.), or other functional modules that can call and execute programs.
  • the embodiment of the present application does not limit this.
  • Fig. 4 is a schematic flow chart of a reference signal transmission method provided in an embodiment of the present application.
  • the method 400 shown in Fig. 4 may include step 410 and step 420. Each step in the method 400 is described in detail below.
  • Step 410 The network device sends configuration information of SRS resources to the terminal device, where the SRS resources correspond to three ports. Accordingly, the terminal device receives the configuration information of the SRS resources.
  • the configuration information includes the maximum number of CS values, the comb offset of the predefined reference port, and the CS value of the reference port.
  • the predefined reference port can be any one of the three ports, which is not limited in this application.
  • the configuration information can be used to indicate the CS value and comb offset corresponding to each of the three ports.
  • the SRS resource corresponds to three ports, which can be understood as the SRS resource is configured with three ports, or the SRS of the three ports are sent through the SRS resource.
  • the terminal device can determine the CS values and comb tooth offsets corresponding to the three ports based on the configuration information of the SRS resource.
  • the comb tooth offset corresponding to the frequency domain resource of the SRS of each of the three ports includes the following three possible designs:
  • Design 1 The frequency domain resources of the SRS of each of the three ports correspond to the same comb tooth offset, that is, the comb tooth offsets corresponding to each of the three ports are the same, or the frequency domain resources of the SRS of each of the three ports are determined by the same comb tooth offset.
  • the comb tooth offset corresponding to the frequency domain resources of the SRS of each of the three ports can be configured by the network device, for example, it can be the comb tooth offset of the reference port.
  • Design 2 The frequency domain resources of the SRS of the first port and the second port among the three ports correspond to different comb tooth offsets from the frequency domain resources of the SRS of the third port among the three ports, wherein the reference port is the first port or the second port.
  • the comb tooth offsets corresponding to the first port and the second port are different from the comb tooth offsets corresponding to the third port, or in other words, the frequency domain resources of the SRS of the first port and the second port are determined by one comb tooth offset, and the frequency domain resources of the SRS of the third port are determined by another comb tooth offset.
  • Design three The frequency domain resources of the SRS of each of the three ports correspond to three different comb tooth offsets, that is, the comb tooth offsets corresponding to each of the three ports are different, or the frequency domain resources of the SRS of each of the three ports are determined by three different comb tooth offsets.
  • one port pi corresponds to one comb tooth offset. Indicates the starting frequency domain position of the port pi It is determined according to the following formula: in, The frequency domain RB offset configured is shown. represents the frequency domain subband offset, Indicates the comb offset, It is configured by the network device. After the terminal device determines the comb offset corresponding to the port, it can determine the starting frequency domain position according to the above formula.
  • the three ports corresponding to the SRS resource correspond to the same comb tooth offset, which can be indicated by the network device, for example.
  • the CS value corresponding to the port with port number pi among the three ports is Satisfies the following formula:
  • the maximum number of CS values Comb offsets for predefined reference ports And the CS value of the reference port is the network device configuration.
  • the port number 1000 is used as a reference port for example only and should not constitute any limitation to this application.
  • the CS value corresponding to the port number pi among the three ports is Satisfies the following formula: or,
  • the value of pi can be Y, Y+1 or Y+2.
  • the terminal device may determine the CS value corresponding to each of the above three ports according to Formula 3 or Formula 4.
  • FIG. 5 is a schematic diagram of CS values corresponding to various ports provided in an embodiment of the present application.
  • K TC 2
  • the SRS resources configured on the network device correspond to three ports, namely The frequency domain resources of the SRS of the three ports correspond to the same comb tooth offset, that is, the three ports correspond to the same comb tooth offset, and the comb tooth offset is specifically 0.
  • SRS resource 1 according to Formula 3, the port number 1000 (that is, port 0 in the figure) corresponds to CS 0, the port number 1001 (that is, port 1 in the figure) corresponds to CS 2, and the port number 1002 (that is, port 2 in the figure) corresponds to CS 4.
  • the port numbered 1000 corresponds to CS 1
  • the port numbered 1001 corresponds to CS 3
  • the port numbered 1002 corresponds to CS 5.
  • the difference between the CS value corresponding to port 0 and the CS value corresponding to port 1 is 2
  • the difference between the CS value corresponding to port 1 and the CS value corresponding to port 2 is 2
  • the difference between the CS value corresponding to port 0 and the CS value corresponding to port 2 is 4.
  • the minimum value of the difference between any two CS values among the three CS values corresponding to the three ports is
  • K TC 2
  • the SRS resources configured in the network device correspond to three ports, namely The frequency domain resources of the SRS of the three ports correspond to the same comb tooth offset, which is specifically 0.
  • SRS resource 1 according to Formula 4, the port number 1000 (i.e., port 0 in the figure) corresponds to CS 0, the port number 1001 (i.e., port 1 in the figure) corresponds to CS 3, and the port number 1002 (i.e., port 2 in the figure) corresponds to CS 6.
  • the port numbered 1000 corresponds to CS 1
  • the port numbered 1001 corresponds to CS 4
  • the port numbered 1002 corresponds to CS 7.
  • the difference between the CS value corresponding to port 0 and the CS value corresponding to port 1 is 3
  • the difference between the CS value corresponding to port 1 and the CS value corresponding to port 2 is 3
  • the difference between the CS value corresponding to port 0 and the CS value corresponding to port 2 is 6.
  • the minimum value of the difference between any two CS values among the three CS values corresponding to the three ports is
  • FIG. 6 is another schematic diagram of CS values corresponding to various ports provided in an embodiment of the present application. middle, Divisible by 3.
  • K TC 4
  • the SRS resources configured on the network device correspond to three ports, namely The frequency domain resources of the SRS of the three ports correspond to the same comb tooth offset, which is specifically 0.
  • SRS resource 1 according to Formula 3 or Formula 4, the port numbered 1000 (i.e., port 0 in the figure) corresponds to CS 0, the port numbered 1001 (i.e., port 1 in the figure) corresponds to CS 4, and the port numbered 1002 (i.e., port 2 in the figure) corresponds to CS 8.
  • the port number 1000 (that is, port 0 in the figure) corresponds to CS 1
  • the port number 1001 (that is, port 1 in the figure) corresponds to CS 5
  • the port number 1002 (that is, port 2 in the figure) corresponds to CS 9.
  • the difference between the CS value corresponding to port 0 and the CS value corresponding to port 1 is 4
  • the difference between the CS value corresponding to port 1 and the CS value corresponding to port 2 is 4
  • the difference between the CS value corresponding to port 0 and the CS value corresponding to port 2 is 8.
  • the minimum value of the difference between any two CS values of the three ports is
  • the SRS resources configured on the network device correspond to three ports, namely The frequency domain resources of the SRS of the three ports correspond to the same comb tooth offset, which is specifically 0.
  • SRS resource 1 according to Formula 3 or Formula 4, the port numbered 1000 (i.e., port 0 in the figure) corresponds to CS 0, the port numbered 1001 (i.e., port 1 in the figure) corresponds to CS 2, and the port numbered 1002 (i.e., port 2 in the figure) corresponds to CS 4.
  • the port numbered 1000 corresponds to CS 1
  • the port numbered 1001 i.e., port 1 in the figure
  • the port numbered 1002 i.e., port 2 in the figure
  • the difference between the CS value corresponding to port 0 and the CS value corresponding to port 1 is 2
  • the difference between the CS value corresponding to port 1 and the CS value corresponding to port 2 is 2
  • the difference between the CS value corresponding to port 0 and the CS value corresponding to port 2 is 4.
  • the minimum value of the difference between any two CS values among the three CS values corresponding to the three ports is
  • FIG. 7 is a schematic diagram of CS values corresponding to each port when SRS resources provided in an embodiment of the present application correspond to different numbers of ports.
  • K TC 2
  • the frequency domain resources of the SRS of the three ports correspond to the same comb tooth offset, which is specifically 0.
  • the three ports correspond to CS 1, CS 4 and CS 7 respectively.
  • the frequency domain resources of the SRS of the four ports correspond to the same comb tooth offset, which is specifically 0.
  • the four ports correspond to CS 0, CS 2, CS 4 and CS 6 respectively. It can be seen that the 4-port-SRS resource will conflict with the 3-port-SRS resource on CS 4 with a comb offset of 0.
  • K TC 8
  • the frequency domain resources of the SRS of the three ports correspond to the same comb tooth offset, which is specifically 0.
  • the three ports correspond to CS 0, CS 2, and CS 4, respectively.
  • the frequency domain resources of the SRS of the four ports correspond to two comb tooth offsets.
  • the comb tooth offsets are specifically 0 and 4. If According to Formula 1, the four ports correspond to CS 1 and CS 4 respectively. It can be seen that the 4-port-SRS resource will conflict with the 3-port-SRS resource on CS 4 where the comb tooth offset is 0.
  • Fig. 8 is another schematic diagram of CS values corresponding to each port when SRS resources provided in an embodiment of the present application correspond to different numbers of ports. Different from Fig. 7, in Fig. 8, the frequency domain resources of the SRS of the three ports of the SRS resource correspond to two comb tooth offsets, but when the frequency domain resources of the SRS of the three ports of the SRS resource correspond to two comb tooth offsets, if the CS values corresponding to each of the three ports are determined based on formula 1, there may also be a conflict problem.
  • K TC 2
  • the frequency domain resources of the SRS of the three ports correspond to two comb tooth offsets.
  • the comb tooth offsets are 0 and 1 respectively.
  • the frequency domain resources of the SRS of port 0 and port 2 correspond to the comb tooth offset of 0
  • the frequency domain resources of the SRS of port 1 correspond to the comb tooth offset of 1.
  • the comb tooth offset corresponding to the frequency domain resource is 1.
  • the CS values corresponding to port 0 and port 2 can be determined according to the method of determining the CS values according to the SRS resources of the two ports.
  • port number 1000 (port 0 in the figure) corresponds to CS 0
  • port number 1001 (port 1 in the figure) corresponds to CS 2
  • port number 1002 (port 2 in the figure) corresponds to CS 4.
  • the CS value corresponding to each port can be obtained in the same way, which will not be repeated here.
  • the frequency domain resources of the SRS of the two ports correspond to the same comb tooth offset, and the comb tooth offset is specifically 1.
  • Each of the two ports corresponds to CS 0 and CS 3 respectively. It can be seen that the 2-port-SRS resource will conflict with the 3-port-SRS resource on CS 3 with a comb tooth offset of 1.
  • K TC 8
  • the frequency domain resources of the SRS of the three ports correspond to two comb tooth offsets.
  • the comb tooth offsets are 0 and 4 respectively.
  • the comb tooth offset corresponding to the frequency domain resources of the SRS of port 0 and port 2 is 0, and the comb tooth offset corresponding to the frequency domain resources of the SRS of port 1 is 4.
  • the CS values corresponding to port 0 and port 2 can be determined according to the method of determining the CS value of the SRS resources of the two ports.
  • port number 1000 (port 0 in the figure) corresponds to CS 0
  • port number 1001 (port 1 in the figure) corresponds to CS 0
  • port number 1002 (port 2 in the figure) corresponds to CS 3.
  • the CS value corresponding to each port can be obtained in the same way, which will not be repeated here.
  • the frequency domain resources of the SRS of the two ports correspond to the same comb tooth offset, and the comb tooth offset is specifically 4.
  • Each of the two ports corresponds to CS 0 and CS 3 respectively. It can be seen that the 2-port-SRS resource will conflict with the 3-port-SRS resource on CS 3 with a comb tooth offset of 4.
  • the SRS resources corresponding to the three ports conflict with the SRS resources of the two ports (or four ports). Therefore, in the present application, when the frequency domain resources of the SRS of the first port and the second port among the above three ports correspond to different comb tooth offsets with the frequency domain resources of the SRS of the third port among the above three ports, the difference between the CS value corresponding to the third port and the CS value of the reference port changes with the CS value of the reference port. If the CS value of the configured reference port changes, the difference between the CS value corresponding to the third port and the CS value of the reference port will also change accordingly.
  • the difference between the CS value corresponding to the third port and the CS value of the reference port is related to the CS value of the reference port. In this way, the difference between the CS value corresponding to the third port and the CS value of the reference port can be adjusted by configuring different CS values of the reference port.
  • the CS value corresponding to the third port among the three ports is related to the CS value of the reference port. That is, if the CS value of the reference port changes, the CS value corresponding to the third port will also change accordingly.
  • CS value corresponding to the third port satisfy: in, For follow The changing function value,
  • the value is an integer, and mod means the remainder operation.
  • the CS value corresponding to the third port satisfy: m is an integer. It can be seen that if the CS value of the reference port of different SRS resources If the reference ports of different SRS resources have different CS values, then the CS value corresponding to the third port is also different. In addition, if the CS values corresponding to the reference ports of different SRS resources are different, then due to the fact that the CS value corresponding to the third port has Therefore, the difference corresponding to the third ports of different SRS resources is greater than or equal to 2. In other words, there is an interval between the CS values corresponding to the third ports of different SRS resources.
  • the CS value of the interval can correspond to the SRS resources of other types of ports (such as four ports, or two ports, etc.), which is conducive to improving resource utilization.
  • the interval is conducive to reducing the possibility of conflict between SRS resources of different types of ports.
  • m can be a positive integer such as 1, 2, 3, or a negative integer such as -1, -2, etc., and this application does not limit this.
  • the CS value corresponding to the port with the port number pi among the three ports can be determined by the following formula, or in other words, the CS value corresponding to the port with the port number pi among the three ports can be determined by the following formula: Satisfies the following formula:
  • mod represents the remainder operation
  • the value of pi is 1000, 1001 or 1002
  • the port number 1000 is the reference port.
  • the port number 1000 is used as a reference port for example only and should not constitute any limitation to this application.
  • the CS value corresponding to the port number pi among the above three ports is Satisfies the following formula:
  • the value of pi can be Y, Y+1 or Y+2.
  • the value of pi is 1000, 1001 or 1002, and the port number 1000 is the reference port. and or 2, the terminal device can determine the CS value corresponding to each of the three ports according to Formula 6. or When the value is other, the terminal device can determine the CS value corresponding to each of the three ports according to Formula 5.
  • the port number 1000 is used as a reference port for example only and should not constitute any limitation to this application.
  • the port number Y is used as a reference port, and or 2
  • the CS value corresponding to the port with port number pi among the above three ports is Satisfies the following formula:
  • the value of pi can be Y, Y+1 or Y+2.
  • K TC indicates the comb tooth degree
  • the value of pi is 1000, 1001 or 1002
  • the port number 1000 is the reference port.
  • the port number 1000 is used as a reference port for example only and should not constitute any limitation to this application.
  • the comb tooth offset corresponding to the port number pi among the above three ports is Satisfies the following formula:
  • the value of pi can be Y, Y+1 or Y+2.
  • Fig. 9 is another schematic diagram of CS values corresponding to various ports provided in an embodiment of the present application, wherein port 1 is an example of the third port, port 0 is an example of the first port, and port 2 is an example of the second port.
  • K TC 2
  • the SRS resources configured in the network device correspond to three ports, namely According to Formula 7, the comb tooth offset corresponding to the frequency domain resources of the SRS of the port number 1000 (i.e., port 0 in the figure) and the port number 1002 (i.e., port 2 in the figure) is 0, and the comb tooth offset corresponding to the frequency domain resources of the SRS of the port number 1001 (i.e., port 1 in the figure) is 1.
  • the port number 1000 (that is, port 0 in the figure) corresponds to CS 0
  • the port number 1001 (that is, port 1 in the figure) corresponds to CS 1
  • the port number 1002 (that is, port 2 in the figure) corresponds to CS 4.
  • the value is 1, 2, or 3
  • the frequency domain resources of the SRS of port 0 and port 2 correspond to the same comb tooth offset, and the difference between the CS values corresponding to port 0 and port 2 is 4.
  • K TC 4
  • the SRS resources configured in the network device correspond to three ports, namely According to Formula 7, the comb tooth offset corresponding to the frequency domain resources of the SRS of the port number 1000 (i.e., port 0 in the figure) and the port number 1002 (i.e., port 2 in the figure) is 0, and the comb tooth offset corresponding to the frequency domain resources of the SRS of the port number 1001 (i.e., port 1 in the figure) is 2.
  • the port number 1000 (that is, port 0 in the figure) corresponds to CS 0
  • the port number 1001 (that is, port 1 in the figure) corresponds to CS 1
  • the port number 1002 (that is, port 2 in the figure) corresponds to CS 6.
  • the CS values corresponding to each port when the value is 1, 2, 3, 4, and 5.
  • the frequency domain resources of the SRS of port 0 and port 2 correspond to the same comb tooth offset
  • the difference between the CS values corresponding to port 0 and port 2 is 6.
  • the difference between the CS values corresponding to the two ports is 6.
  • FIG. 10 is another schematic diagram of CS values corresponding to various ports provided in an embodiment of the present application.
  • K TC 4
  • the SRS resources configured in the network device correspond to three ports, namely According to Formula 7, the comb tooth offset corresponding to the frequency domain resources of the SRS of the port number 1000 (i.e., port 0 in the figure) and the port number 1002 (i.e., port 2 in the figure) is 0, and the comb tooth offset corresponding to the frequency domain resources of the SRS of the port number 1001 (i.e., port 1 in the figure) is 2.
  • the port number 1000 (that is, port 0 in the figure) corresponds to CS 2
  • the port number 1001 (that is, port 1 in the figure) corresponds to CS 5
  • the port number 1002 (that is, port 2 in the figure) corresponds to CS 8.
  • the CS value correspond to each port.
  • the comb tooth offset corresponding to the frequency domain resources of SRS of port 0 and port 2 is 0, and the comb tooth offset corresponding to the frequency domain resources of SRS of port 1 and port 3 is 2.
  • Port 0 corresponds to CS 6
  • port 1 corresponds to CS 9
  • port 2 corresponds to CS
  • port 3 corresponds to CS 3.
  • K TC 8
  • the SRS resources configured in the network device correspond to three ports, namely According to Formula 7, the comb tooth offset corresponding to the frequency domain resources of the SRS of the port number 1000 (i.e., port 0 in the figure) and the port number 1002 (i.e., port 2 in the figure) is 0, and the comb tooth offset corresponding to the frequency domain resources of the SRS of the port number 1001 (i.e., port 1 in the figure) is 4.
  • the port number 1000 (that is, port 0 in the figure) corresponds to CS 0
  • the port number 1001 (that is, port 1 in the figure) corresponds to CS 1
  • the port number 1002 (that is, port 2 in the figure) corresponds to CS 3.
  • the CS value corresponding to each port.
  • the frequency domain resources of the SRS of port 0 and port 2 correspond to the same comb tooth offset
  • the difference between the CS values corresponding to port 0 and port 2 is 3.
  • the frequency domain resources of the SRS of two of the three ports correspond to the same comb tooth offset
  • the difference between the CS values corresponding to the two ports is 3.
  • Figure 11 is a schematic diagram of CS values corresponding to SRS resources of different ports provided in an embodiment of the present application.
  • the CS values of each port can be directly determined according to the method of determining the CS value in the case of SRS resources corresponding to four ports, or in other words, the CS value of each port in the case of SRS resources corresponding to three ports can be calculated according to Formula 1.
  • K TC 4
  • the SRS resources configured in the network device correspond to three ports, namely The comb tooth offset corresponding to the frequency domain resource of the SRS of the port number 1000 (that is, port 0 in the figure) and the port number 1002 (that is, port 2 in the figure) is 0, and the comb tooth offset corresponding to the frequency domain resource of the SRS of the port number 1001 (that is, port 1 in the figure) is 2.
  • port number 1000 i.e. port 0 in the figure
  • port number 1001 i.e. port 1 in the figure
  • CS 10 port number 1002 (i.e. port 2 in the figure) corresponds to CS 1.
  • the CS values corresponding to the ports corresponding to other SRS resources can be obtained.
  • port 0 corresponds to CS 6
  • port 1 corresponds to CS 9
  • port 2 corresponds to CS 3
  • port 3 corresponds to CS 0.
  • design three For design three:
  • the frequency domain resources of the SRS of each of the three ports above correspond to three different comb tooth offsets.
  • the above three The CS value corresponding to each port in the ports may be configured by the network device.
  • the comb tooth offset corresponding to the frequency domain resource of the SRS of each of the three ports satisfies the following formula:
  • K TC 8
  • the comb tooth offset corresponding to the frequency domain resources of the SRS of the port with port number 1000 is 0, the comb tooth offset corresponding to the frequency domain resources of the SRS of the port with port number 1001 is 1, and the comb tooth offset corresponding to the frequency domain resources of the SRS of the port with port number 1002 is 2.
  • K TC 8
  • the comb tooth offset corresponding to the frequency domain resources of the SRS of the port with port number 1000 is 0, the comb tooth offset corresponding to the frequency domain resources of the SRS of the port with port number 1001 is 3, and the comb tooth offset corresponding to the frequency domain resources of the SRS of the port with port number 1002 is 6.
  • K TC 8
  • the comb tooth offset corresponding to the frequency domain resources of the SRS of the port with port number 1000 is 0, the comb tooth offset corresponding to the frequency domain resources of the SRS of the port with port number 1001 is 2, and the comb tooth offset corresponding to the frequency domain resources of the SRS of the port with port number 1002 is 5.
  • the network device can indicate which design to use, or the protocol predefines which design to use.
  • the number of comb tooth offsets corresponding to the frequency domain resources of the SRS of the three ports can be predefined or indicated by the network device.
  • the terminal device uses Design 1 to determine the comb tooth offsets and CS values corresponding to each port; when the number of comb tooth offsets corresponding to the frequency domain resources of the SRS of the three ports is 2, the terminal device uses Design 2 to determine the comb tooth offsets and CS values corresponding to each port; when the number of comb tooth offsets corresponding to the frequency domain resources of the SRS of the three ports is 3, the terminal device uses Design 3 to determine the comb tooth offsets and CS values corresponding to each port.
  • a possible implementation method is that the number of comb tooth offsets corresponding to the frequency domain resources of the SRS of the three ports is related to the value range of the CS value of the reference port.
  • the network device can implicitly indicate the number of comb tooth offsets corresponding to the frequency domain resources of the SRS of the three ports through the value range of the CS value of the reference port.
  • the terminal device supports both Design 1 and Design 2.
  • the range of CS values of the reference port is When , it indicates that design one is adopted, that is, the frequency domain resources of the SRS of each of the three ports correspond to the same comb tooth offset.
  • the comb tooth offsets corresponding to the three ports corresponding to the SRS resource are the same, for example, the comb tooth offsets corresponding to the three ports are the same.
  • the calculation formula for the CS value corresponding to each of the three ports may be, for example:
  • the frequency domain resources of the SRS of the first port and the second port of the above three ports correspond to different comb tooth offsets from the frequency domain resources of the SRS of the third port of the above three ports.
  • the comb tooth offset corresponding to the frequency domain resource of the SRS of the port with port number pi satisfies the following formula:
  • the CS value corresponding to each of the three ports satisfies the following formula, for example:
  • the value range of the CS value of the reference port can be divided into three sections, such as Each segment corresponds to a design.
  • the comb tooth offsets corresponding to the three ports corresponding to the SRS resource are the same, for example, the comb tooth offsets corresponding to the three ports are the same.
  • the calculation formula for the CS value corresponding to each of the three ports may be, for example:
  • the frequency domain resources of the SRS of the first port and the second port of the above three ports correspond to different comb tooth offsets from the frequency domain resources of the SRS of the third port of the above three ports.
  • the comb tooth offset corresponding to the frequency domain resource of the SRS of the port with port number pi satisfies the following formula:
  • the CS value corresponding to each of the three ports satisfies the following formula, for example:
  • the frequency domain resources of the SRS of the three ports correspond to three different comb tooth offsets.
  • the comb tooth offset corresponding to the frequency domain resources of the SRS of each port satisfies the following formula:
  • Step 420 The terminal device sends the SRS resources corresponding to the three ports to the network device.
  • the network device receives the SRS resources corresponding to the three ports.
  • the terminal device After determining the CS value and comb tooth offset corresponding to each of the three ports, the terminal device sends the SRS of the three ports to the network device through the SRS resource.
  • the terminal device can receive the configuration information of the SRS resource, and determine the CS value and comb tooth offset of each of the three ports corresponding to the SRS resource based on the maximum number of CS values included in the configuration information, the comb tooth offset of the reference port, and the CS value of the reference port. In this way, the terminal device can generate the SRS of the three ports based on the CS values and comb tooth offsets corresponding to the three ports, and then send the SRS resources corresponding to the three ports to the network device.
  • FIG. 12 is a schematic block diagram of a communication device 1200 provided in an embodiment of the present application.
  • the communication device 1200 includes a first transceiver module 1210 and a second transceiver module 1220 .
  • the above-mentioned device 1200 can be used to implement the function of the terminal device in the method embodiment shown in Figure 4 above, or the above-mentioned device 1200 is used to implement the function of the network device in the method embodiment shown in Figure 4 above.
  • the first transceiver module 1210 can be used to receive the configuration information of the SRS resource, the SRS resource corresponds to three ports, and the configuration information includes the maximum number of CS values. Comb offset at reference port and the CS value of the reference port
  • the reference port is a predefined port among the three ports; the second transceiver module 1220 may be configured to send the SRS resources corresponding to the three ports to the network device.
  • the first transceiver module 1210 can be used to send configuration information of the SRS resource to the terminal device, wherein the SRS resource corresponds to three ports, and the configuration information includes the maximum number of CS values. Comb offset at reference port and the CS value of the reference port
  • the reference port is a predefined port among the three ports; the second transceiver module 1220 may be configured to receive SRS resources corresponding to the three ports.
  • first transceiver module 1210 and the second transceiver module 1220 can be directly obtained by referring to the relevant description in the method embodiment shown in FIG. 4 , and will not be repeated here.
  • each functional module in each embodiment of the present application may be integrated into a processor, or may exist physically separately, or two or more modules may be integrated into one module.
  • the above-mentioned integrated modules may be implemented in the form of hardware or in the form of software functional modules.
  • FIG13 is another schematic block diagram of a communication device 1300 provided in an embodiment of the present application.
  • the device 1300 may be a chip system, or may be a device configured with a chip system for implementing the method described in the above method embodiment.
  • the chip system may be composed of a chip, or may include a chip and other discrete devices.
  • the apparatus 1300 may include a processor 1310 and a communication interface 1320.
  • the communication interface 1320 may be used to communicate with other devices via a transmission medium, so that the apparatus 1300 may communicate with other devices.
  • the interface 1320 may be, for example, a transceiver, an interface, a bus, a circuit, or a device capable of implementing transceiver functions.
  • the processor 1310 may use the communication interface 1320 to input and output data, and to implement the method described in the embodiment corresponding to FIG. 4 .
  • the device 1300 may be used to implement the functions of a network device or a terminal device in the above method embodiment.
  • the device 1300 also includes at least one memory 1330 for storing program instructions and/or data.
  • the memory 1330 is coupled to the processor 1310.
  • the coupling in the embodiment of the present application is an indirect coupling or communication connection between devices, units or modules, which can be electrical, mechanical or other forms, and is used for information exchange between devices, units or modules.
  • the processor 1310 may operate in conjunction with the memory 1330.
  • the processor 1310 may execute program instructions stored in the memory 1330. At least one of the at least one memory may be included in the processor.
  • the specific connection medium between the processor 1310, the communication interface 1320 and the memory 1330 is not limited in the embodiment of the present application.
  • the processor 1310, the communication interface 1320 and the memory 1330 are connected via a bus 1340.
  • the bus 1340 is represented by a bold line in FIG. 13 , and the connection mode between other components is only for schematic illustration and is not intended to be limiting.
  • the bus can be divided into an address bus, a data bus, a control bus, etc.
  • FIG. 13 is represented by only one bold line, but it does not mean that there is only one bus or one type of bus.
  • FIG14 is a schematic diagram of the structure of a network device provided in an embodiment of the present application, for example, a schematic diagram of the structure of a base station, which is an example of a network device.
  • the base station 1400 may include one or more DU 1410 and one or more CU 1420.
  • CU 1420 may communicate with a next generation core network (NG core, NC).
  • the DU 1410 may include at least one antenna 1411, at least one radio unit 1412, at least one processor 1413 and at least one memory 1414.
  • the DU 1410 part is mainly used for receiving and transmitting radio frequency signals and converting radio frequency signals to baseband signals, as well as partial baseband processing.
  • CU 1420 may include at least one processor 1422 and at least one memory 1421.
  • CU 1420 and DU 1410 may communicate through an interface, wherein the control plane (CP) interface may be Fs-C, such as F1-C, and the user plane (UP) interface may be Fs-U, such as F1
  • the CU 1420 part is mainly used for baseband processing, controlling the base station, etc.
  • the DU 1410 and CU 1420 can be physically set together or physically separated, that is, a distributed base station.
  • the CU 1420 is the control center of the base station, which can also be called a processing unit, and is mainly used to complete the baseband processing function.
  • the CU 1420 can be used to control the base station to execute the method executed by the network device in the embodiment shown in Figure 3.
  • the CU 1420 may be composed of one or more boards, and the multiple boards may jointly support a wireless access network with a single access indication (such as a 5G network), or may respectively support wireless access networks with different access standards (such as an LTE network, a 5G network, or other networks).
  • the memory 1421 and the processor 1422 may serve one or more boards. In other words, a memory and a processor may be separately set on each board. It is also possible that multiple boards share the same memory and processor. In addition, necessary circuits may be set on each board.
  • the DU 1410 may be composed of one or more boards, and the multiple boards may jointly support a wireless access network with a single access indication (such as a 5G network), or may respectively support wireless access networks with different access standards (such as an LTE network, a 5G network, or other networks).
  • the memory 1414 and the processor 1413 may serve one or more boards. In other words, a memory and a processor may be separately set on each board. It is also possible that multiple boards share the same memory and processor. In addition, necessary circuits may be set on each board.
  • the base station 1400 shown in FIG. 14 is only a possible architecture of a network device and should not constitute any limitation to the present application.
  • the method provided in the present application may be applicable to network devices of other architectures.
  • a network device including a CU, a DU, and an active antenna processing unit (active antenna anit, AAU), etc.
  • the present application does not limit the specific architecture of the network device.
  • Fig. 15 is a schematic diagram of the structure of a terminal device 1500 provided in an embodiment of the present application.
  • the terminal device 1500 can be used to implement the steps performed by the terminal device in the embodiment shown in Fig. 4.
  • the terminal device 1500 includes a processor 1501 and a transceiver 1502.
  • the terminal device 1500 further includes a memory 1503.
  • the processor 1501, the transceiver 1502 and the memory 1503 can communicate with each other through an internal connection path to transmit control and/or data signals, the memory 1503 is used to store a computer program, and the processor 1501 is used to call and run the computer program from the memory 1503 to control the transceiver 1502 to send and receive signals.
  • the terminal device 1500 may further include an antenna 1504 for transmitting the uplink data or uplink control signaling output by the transceiver 1502 through a wireless signal.
  • the terminal device 1500 may further include a Wi-Fi module 1511 for accessing a wireless network.
  • the processor 1501 and the memory 1503 may be combined into a processing device, and the processor 1501 is used to execute the program code stored in the memory 1503 to implement the above functions.
  • the memory 1503 may also be integrated into the processor 1501, or independent of the processor 1501.
  • the transceiver 1502 may correspond to the first transceiver module 1210, the second transceiver module 1220 in FIG. 12 or the communication interface 1320 in FIG. 13.
  • the transceiver 1502 may include a receiver (or receiver, receiving circuit) and a transmitter (or transmitter, transmitting circuit). The receiver is used to receive signals and the transmitter is used to transmit signals.
  • the terminal device 1500 may further include a power supply 1505 for providing power to various devices or circuits in the terminal device 1500 .
  • the terminal device 1500 may also include one or more of an input unit 1506, a display unit 1507, an audio circuit 1508, a camera 1509 and a sensor 1510, and the audio circuit may also include a speaker 1508a, a microphone 1508b, etc.
  • each module in the terminal device 1500 is respectively for implementing the corresponding processes in the above method embodiment.
  • the operations and/or functions of each module in the terminal device 1500 are respectively for implementing the corresponding processes in the above method embodiment.
  • the present application also provides a computer program product, which includes: a computer program (also referred to as code, or instruction).
  • a computer program also referred to as code, or instruction.
  • the present application also provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program (also referred to as code or instruction).
  • a computer program also referred to as code or instruction.
  • An embodiment of the present application provides a communication system, which includes a terminal device and a network device as described above.
  • the processor in the embodiment of the present application can be an integrated circuit chip with signal processing capabilities.
  • each step of the above method embodiment can be completed by the hardware integrated logic circuit in the processor or the instruction in the form of software.
  • the above processor can be a general processor, a digital signal processor (digital signal processor, DSP), an application specific integrated circuit (application specific integrated circuit, ASIC), a field programmable gate array (field programmable gate array, FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components.
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA field programmable gate array
  • the methods, steps and logic block diagrams disclosed in the embodiments of the present application can be implemented or executed.
  • the general processor can be a microprocessor or the processor can also be any conventional processor.
  • the steps of the method disclosed in the embodiment of the present application can be directly embodied as a hardware decoding processor to perform, or the hardware and software modules in the decoding processor can be combined to perform.
  • the software module can be located in a mature storage medium in the field such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory or an electrically erasable programmable memory, a register, etc.
  • the storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.
  • the memory in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memories.
  • the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory.
  • the volatile memory may be a random access memory (RAM), which is used as an external cache.
  • RAM random access memory
  • SRAM static RAM
  • DRAM dynamic RAM
  • SDRAM synchronous DRAM
  • DDR SDRAM double data rate SDRAM
  • ESDRAM enhanced SDRAM
  • SLDRAM synchlink DRAM
  • DR RAM direct rambus RAM
  • unit may be used to represent computer-related entities, hardware, firmware, a combination of hardware and software, software, or software in execution.
  • the units and modules in the embodiments of the present application have the same meaning and can be used interchangeably.
  • the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • each functional unit can be implemented in whole or in part by software, hardware, firmware or any combination thereof.
  • software When implemented by software, it can be implemented in whole or in part in the form of a computer program product.
  • the computer program product includes one or more computer instructions (programs). When the computer program instructions (programs) are loaded and executed on a computer, the process or function described in the embodiment of the present application is generated in whole or in part.
  • 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 computer-readable storage medium.
  • the computer instructions can be transmitted from a website site, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (digital subscriber line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, server or data center.
  • the computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server or data center that includes one or more available media integrated.
  • the available medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a digital versatile disk (DVD)), or a semiconductor medium (e.g., a solid state disk (SSD)), etc.
  • a magnetic medium e.g., a floppy disk, a hard disk, a magnetic tape
  • an optical medium e.g., a digital versatile disk (DVD)
  • DVD digital versatile disk
  • SSD solid state disk
  • the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium.
  • the technical solution of the present application or the part that contributes to the technology or the part of the technical solution, can be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in each embodiment of the present application.
  • the aforementioned storage medium includes: various media that can store program codes, such as USB flash drives, mobile hard drives, ROM, RAM, magnetic disks, or optical disks.

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
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Abstract

La présente demande concerne un procédé d'émission d'un signal de référence et un appareil associé. Le procédé comprend les étapes consistant à : recevoir des informations de configuration de ressources de SRS, les ressources de SRS correspondant à trois ports et les informations de configuration contenant le nombre maximal nSRS cs,max de valeurs de CS, une formule de décalage de peigne (I) d'un port de référence, la valeur de CS nSRS cs du port de référence et le port de référence étant un port prédéfini parmi les trois ports; et, sur la base des informations de configuration des ressources de SRS, au moyen d'un dispositif terminal, déterminer des valeurs de CS respectives et des décalages de peigne correspondant aux trois ports, puis envoyer les ressources de SRS correspondant aux trois ports à un dispositif de réseau. La présente demande concerne une solution permettant de déterminer les valeurs de CS et les décalages de peigne correspondant aux ports lorsque les ressources de SRS correspondent aux trois ports, de telle sorte que le dispositif terminal peut envoyer au dispositif de réseau les ressources de SRS correspondant aux trois ports.
PCT/CN2024/114616 2023-08-31 2024-08-26 Procédé d'émission d'un signal de référence et appareil associé Pending WO2025044997A1 (fr)

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CN202311134240.6A CN119544166A (zh) 2023-08-31 2023-08-31 一种参考信号的传输方法及相关装置
CN202311134240.6 2023-08-31

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107911203A (zh) * 2017-08-11 2018-04-13 华为技术有限公司 发送和接收参考信号的方法、网络设备、终端设备和系统
CN115316026A (zh) * 2020-03-31 2022-11-08 华为技术有限公司 传输参考信号的方法和装置
WO2023024737A1 (fr) * 2021-08-23 2023-03-02 Telefonaktiebolaget Lm Ericsson (Publ) Transmission en liaison montante avec des ressources de signauc de référence de liaison montante étendues
CN116015576A (zh) * 2021-10-22 2023-04-25 北京紫光展锐通信技术有限公司 参考信号的资源映射方法与装置、终端和网络设备

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107911203A (zh) * 2017-08-11 2018-04-13 华为技术有限公司 发送和接收参考信号的方法、网络设备、终端设备和系统
CN115316026A (zh) * 2020-03-31 2022-11-08 华为技术有限公司 传输参考信号的方法和装置
WO2023024737A1 (fr) * 2021-08-23 2023-03-02 Telefonaktiebolaget Lm Ericsson (Publ) Transmission en liaison montante avec des ressources de signauc de référence de liaison montante étendues
CN116015576A (zh) * 2021-10-22 2023-04-25 北京紫光展锐通信技术有限公司 参考信号的资源映射方法与装置、终端和网络设备

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