Signal configuration method, apparatus and system

Abstract

Provided in the present application are a signal configuration method, apparatus and system, which can be applied to the technical field of communications and can improve the positioning precision. The method comprises: a terminal device receiving first configuration information, and configuring a reference signal according to the first configuration information, wherein the reference signal corresponds to at least two sub-bands on the same time-domain resource, and adjacent sub-bands among the at least two sub-bands are spaced apart by at least one frequency-domain unit in a frequency domain.

Description

Signal configuration method, device and system

[0001] This application claims priority to the Chinese patent application filed with the State Intellectual Property Office on July 25, 2023, with application number 202310922332.4 and application name “Signal Configuration Method, Device and System”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of communication technology, and in particular to a signal configuration method, device, and system. Background Art

[0003] Carrier phase positioning technology is one of the main methods of high-precision positioning at present. This technology can measure the distance between the receiving end and the transmitting end by measuring the carrier phase change of the reference signal from the transmitting end to the receiving end.

[0004] Currently, the reference signals used in carrier phase positioning technology are sounding reference signals (SRS) or positioning reference signals (PRS). However, the performance achieved by the reference signals currently used in carrier phase positioning technology may not meet the positioning requirements in some scenarios.

[0005] Summary of the Invention

[0006] The embodiments of the present application provide a signal configuration method, device, and system for configuring reference signals to improve positioning effects.

[0007] To achieve the above objectives, the embodiments of the present application adopt the following technical solutions:

[0008] In a first aspect, a signal configuration method is provided. The method can be performed by a terminal device or by a module (e.g., a processor, chip, or chip system) applied to the terminal device. The following description uses a terminal device performing the method as an example. The method includes: the terminal device receiving first configuration information and configuring a reference signal based on the first configuration information. The reference signal corresponds to at least two subbands on the same time domain resource, and adjacent subbands in the at least two subbands are separated in the frequency domain by at least one frequency domain unit.

[0009] Based on the signal configuration method provided in the embodiment of the present application, reference signals occupying different frequency domain resources can be configured on the same time domain resources, thereby improving positioning accuracy, while also reducing the load and improving the overall signal interference noise ratio (SINR).

[0010] In a second aspect, a signal configuration method is provided. The method can be performed by an access network device or by a module (e.g., a processor, chip, or chip system) applied to the access network device. The following description uses the method performed by an access network device as an example. The method includes: the access network device generating first configuration information and sending the first configuration information. The first configuration information is used to generate a reference signal corresponding to at least two subbands on the same time domain resources, with adjacent subbands in the at least two subbands separated in the frequency domain by at least one frequency domain unit.

[0011] In combination with the above-mentioned first aspect or second aspect, in a possible design, the first configuration information includes first indication information; the first indication information is used to indicate the first frequency domain resources; the first configuration information also includes second indication information; the second indication information is used to indicate the positions of at least two subbands in the first frequency domain resources respectively.

[0012] Based on the signal configuration method provided in the embodiment of the present application, a first frequency domain resource can be configured through the first indication information, and the position of the subband of the reference signal in the first frequency domain resource can be configured through the corresponding second indication information, thereby realizing the configuration of the reference signal. Among them, the design of configuring the position of the subband of the reference signal in the first frequency domain resource through the second indication information can save the resource overhead of separately configuring the frequency domain position and bandwidth for each subband for multi-subband reference signals, and realize that multi-subband reference signals occupy different frequency domain resources on the same time domain resource.

[0013] In combination with the above-mentioned first aspect or second aspect, in one possible design, the first configuration information includes third indication information; the third indication information is used to indicate the interval between the frequency domain positions of other subbands except the first subband in at least two subbands and the frequency domain position of the first subband.

[0014] Based on the signal configuration method provided in the embodiments of the present application, multiple subband reference signals can be configured by configuring the offset of a subband and other subbands relative to the subband. The design of configuring the frequency domain positions of other subbands using the offset indicated by the third indication information reduces the resource overhead of separately configuring the frequency domain position and bandwidth for each subband, and enables multiple subband reference signals to occupy different frequency domain resources within the same time domain.

[0015] In combination with the above-mentioned first aspect or second aspect, in a possible design, the first configuration information includes fourth indication information; the fourth indication information is used to indicate the identification information of the signal sequence corresponding to at least two subbands respectively; the identification information of the signal sequence is used to generate the signal sequence.

[0016] Based on the signal configuration method provided in the embodiment of the present application, different signal sequences can be configured for different subbands through different fourth indication information, so that different subbands of the reference signal can generate different signal sequences, thereby reducing the overall peak to average power ratio (PAPR) of the signal.

[0017] In combination with the above-mentioned first aspect or second aspect, in a possible design, the first configuration information includes at least one of the fifth indication information and the sixth indication information; wherein the fifth indication information is used to indicate the comb structure size corresponding to at least two subbands respectively; the sixth indication information is used to indicate the reference signal corresponding to the transmission power of at least two subbands respectively.

[0018] Based on this solution, the comb structure sizes and / or reference signals corresponding to the transmit powers of at least two subbands of the reference signal may be configured.

[0019] In combination with the first or second aspect above, in one possible design, each subband in at least two subbands occupies the same number of frequency domain units.

[0020] Based on this solution, the frequency domain resource size of each subband of the reference signal can be configured based on the same configuration information, thereby reducing signaling overhead.

[0021] In combination with the foregoing first aspect or second aspect, in a possible design, at least two sub-bands are located in the same partial bandwidth BWP.

[0022] Based on this solution, each subband of the reference signal can be configured with a BWP based on the same configuration information, thereby reducing signaling overhead.

[0023] In a third aspect, a communication device is provided for implementing various methods. The communication device includes modules, units, or means corresponding to the methods. The modules, units, or means may be implemented in hardware, software, or by hardware executing corresponding software implementations. The hardware or software includes one or more modules or units corresponding to the functions.

[0024] In some possible designs, the communication device may include a processing module and a transceiver module. The processing module may be configured to implement the processing functionality of any of the above aspects and any possible implementations thereof. The transceiver module may include a receiving module and a transmitting module, respectively configured to implement the receiving functionality and the transmitting functionality of any of the above aspects and any possible implementations thereof.

[0025] In some possible designs, the transceiver module may be composed of a transceiver circuit, a transceiver, a transceiver or a communication interface.

[0026] In a fourth aspect, a communication device is provided, comprising: a processor and a memory; the memory is used to store computer instructions, and when the processor executes the instructions, the communication device executes the method described in any one of the aspects.

[0027] In a fifth aspect, a communication device is provided, comprising: a processor and a communication interface; the communication interface is used to communicate with a module outside the communication device; the processor is used to execute a computer program or instruction so that the communication device executes the method described in any aspect.

[0028] In a sixth aspect, a communication device is provided, comprising: at least one processor; the processor is configured to execute a computer program or instruction stored in a memory, so that the communication device performs the method described in any one of the aspects. The memory may be coupled to the processor, or may be independent of the processor.

[0029] In a seventh aspect, a computer-readable storage medium is provided, in which a computer program or instruction is stored. When the computer-readable storage medium is run on a communication device, the communication device can execute the method described in any one of the aspects.

[0030] In an eighth aspect, a computer program product comprising instructions is provided, which, when executed on a communication device, enables the communication device to execute the method described in any one of the aspects.

[0031] In a ninth aspect, a communication device is provided (for example, the communication device may be a chip or a chip system), which includes a processor for implementing the functions involved in any aspect.

[0032] In some possible designs, the communication device includes a memory for storing necessary program instructions and data.

[0033] In some possible designs, when the device is a chip system, it can be composed of a chip or include a chip and other discrete devices.

[0034] The communication device provided in any one of the third to ninth aspects may be the terminal device in the first aspect, or a device contained in the terminal device, such as a chip or a chip system; or, the communication device may be the access network device in the second aspect, or a device contained in the access network device, such as a chip or a chip system.

[0035] It can be understood that when the communication device provided in any one of the third to ninth aspects is a chip, the sending action / function of the communication device can be understood as output information, and the receiving action / function of the communication device can be understood as input information.

[0036] Among them, the technical effects brought about by any design method in the third to ninth aspects can refer to the technical effects brought about by different design methods in the first to second aspects, and will not be repeated here.

[0037] In a tenth aspect, a communication system is provided, comprising a terminal device and an access network device, wherein the terminal device is used to implement the method described in the first aspect, and the access network device is used to implement the method described in the second aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] FIG1 is a schematic diagram of ranging using a carrier phase positioning technology;

[0039] FIG2 is a schematic diagram of an SRS;

[0040] FIG3 is a schematic diagram of a positioning network architecture of a 5G core network based on NG-RAN;

[0041] Figure 4 is a schematic diagram of a positioning network architecture based on the PC5 interface;

[0042] FIG5 is a schematic diagram of the structure of a communication system provided in an embodiment of the present application;

[0043] FIG6 is a schematic structural diagram of a communication device provided in an embodiment of the present application;

[0044] FIG7 is a schematic diagram of a flow chart of a signal configuration method provided in an embodiment of the present application;

[0045] FIG8 is a first schematic diagram of a distribution of reference signals provided in an embodiment of the present application;

[0046] FIG9 is a second schematic diagram of a distribution of reference signals provided in an embodiment of the present application;

[0047] FIG10 is a schematic diagram of a DS-RS provided in an embodiment of the present application;

[0048] FIG11 is a schematic diagram of a positioning process provided in an embodiment of the present application;

[0049] FIG12 is a schematic structural diagram of another communication device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0050] In order to facilitate understanding of the technical solutions of the embodiments of the present application, a brief introduction to the relevant technologies of the present application is first given as follows.

[0051] 1. Carrier phase positioning technology

[0052] Carrier phase positioning is currently one of the main methods for high-precision positioning. It measures distances with integer ambiguities by measuring the carrier phase variation of a reference signal from the transmitter to the receiver. Therefore, if the carrier phase integer ambiguities can be correctly resolved, carrier phase ranging accuracy can theoretically reach centimeters to millimeters, resulting in high-precision positioning results.

[0053] Figure 1 is a schematic diagram of ranging using carrier phase positioning technology. Where d is the distance between the receiver and transmitter; is the carrier phase measurement value; N represents the integer ambiguity, which is an integer, representing that N carrier cycles have passed. λ is the carrier wavelength, and the distance d is related to the carrier phase. The following equations are satisfied:

[0054] Currently, carrier phase positioning technology uses existing SRS or PRS signals as reference signals. SRS is an uplink reference signal, while PRS is a downlink reference signal. If SRS is used, the terminal device can configure and transmit the SRS signal based on the SRS configuration information sent by the network. The network can measure the received SRS signal to locate the terminal device. If PRS is used, the network can transmit the PRS signal, and the terminal device can measure the received PRS signal to locate the device on the network that transmitted the PRS signal.

[0055] According to existing configuration methods, existing SRS or PRS signals occupy all resources corresponding to the configured bandwidth on the same symbol. For example, as shown in Figure 2, assuming the network configures symbol 1 and a 100MHz bandwidth for the SRS signal, the SRS signal occupies all resources corresponding to the 100MHz bandwidth on symbol 1.

[0056] 2. Positioning network architecture based on the Next-Generation-Radio Access Network (NG-RAN):

[0057] Exemplarily, a positioning network architecture of a fifth generation (5G) core network based on NG-RAN is shown in Figure 3, which mainly includes the following network functions and entities: terminal equipment, access and mobility management function (AMF) network element, location management function (LMF) network element and access network equipment. Among them, the access network equipment includes fourth generation (4G) access network equipment connected to the 5G core network and 5G access network equipment. Optionally, the positioning network architecture may also include an enhanced serving mobile location center (E-SMLC) network element and a positioning platform (SUPL location platform, SLP) network element based on the secure user plane location (SUPL) protocol.

[0058] Terminal devices communicate with 4G access network equipment via the LTE-Uu interface and with 5G access network equipment via the NR-Uu interface. 4G and 5G access network equipment communicate with each other via the Xn interface. AMF network elements communicate with 4G and 5G access network equipment via the NG-C interface. AMF network elements communicate with LMF network elements via the NLs interface.

[0059] In this positioning network architecture, the AMF network element is primarily responsible for receiving positioning service requests for a specific terminal device from other network elements and forwarding them to the LMF network element. The LMF network element processes the received positioning requests and initiates the relevant positioning procedures. Access network devices are primarily responsible for sending and receiving positioning reference signals and obtaining relevant measurement information.

[0060] The terminal device may be one or more, such as a first terminal device, a second terminal device, a third terminal device, etc. The terminal device may be a terminal device with transceiver functions, or may be a chip or chip system provided in the terminal device. The terminal device may also be referred to as user equipment (UE), terminal, access terminal, subscriber unit (subscriber unit), user station, mobile station (MS), mobile station, remote station, remote terminal, mobile terminal (MT), mobile device, user terminal, wireless communication device, user agent or user device, etc.

[0061] The terminal device in the embodiments of the present application can be a mobile phone, a cellular phone, a smart phone, a tablet computer, a wireless data card, a personal digital assistant (PDA), a wireless modem, a handheld device (handset), a laptop computer, a machine type communication (MTC) terminal, a computer with wireless transceiver function, a virtual reality (VR) terminal, an augmented reality (AR) terminal, a smart home device (for example, a refrigerator, a television, an air conditioner, an electric meter, etc.), an intelligent robot, a robotic arm, a workshop equipment, a wireless terminal in industrial control, a wireless terminal in self-driving, a wireless terminal in remote medical care, a wireless terminal in a smart grid, a wireless terminal in transportation safety, a wireless terminal in a smart city, a wireless terminal in a smart home, a vehicle-mounted terminal, a roadside unit with terminal function, or a wireless terminal in a smart city. The terminal device of the present application may also be an on-board module, on-board module, on-board component, on-board chip or on-board unit built into a vehicle as one or more components or units. The terminal device may also be other devices with terminal functions, for example, the terminal device may also be a device that functions as a terminal in device-to-device (D2D) communication.

[0062] The embodiments of this application do not limit the device form factor of the terminal device. The device used to implement the functions of the terminal device can be the terminal device; it can also be a device that supports the terminal device to implement the functions, such as a chip system. The device can be installed in the terminal device or used in conjunction with the terminal device. In the embodiments of this application, the chip system can be composed of a chip or include a chip and other discrete components.

[0063] There may be multiple access network devices, such as a first access network device, a second access network device, a third access network device, and the like. The access network device may be a device with wireless transceiver functions, or may be a chip or chip system provided on the device. An access network (AN) located in a communication system is used to provide access services to terminals. For example, an access network device may be referred to as a radio access network device (RAN), which may specifically be an access network device of a next-generation mobile communication system, such as a 6G base station, or in a next-generation mobile communication system, the access network device may also have other naming methods, which are all covered within the scope of protection of the embodiments of this application, and this application does not impose any limitations on this. Alternatively, the access network equipment may include 5G, such as a gNB in ​​a new radio (NR) system, or one or a group of antenna panels (including multiple antenna panels) of a base station in 5G, or a network node constituting a gNB, a transmission and reception point (TRP or TP), or a transmission measurement function (TMF), such as a central unit (CU), a distributed unit (DU), a CU-control plane (CP), a CU-user plane (UP), a radio unit (RU), an RSU with base station functions, a wired access gateway, or a 5G core network element. Alternatively, the access network equipment may include an access point (AP) in a wireless fidelity (WiFi) system, a wireless relay node, a wireless backhaul node, various types of macro base stations, micro base stations (also known as small cells), relay stations, access points, wearable devices, vehicle-mounted devices, and the like.

[0064] Among them, the CU and DU can be set separately, or can also be included in the same network element, such as a baseband unit (BBU). The RU can be included in a radio frequency device or a radio frequency unit, such as a remote radio unit (RRU), an active antenna unit (AAU) or a remote radio head (RRH). It can be understood that the access network device can be a CU node, a DU node, or a device including a CU node and a DU node. In addition, the CU can be divided into an access network device in the access network RAN, or the CU can be divided into an access network device in the core network CN, and there is no limitation here.

[0065] In different systems, CU (or CU-CP and CU-UP), DU or RU may also have different names, but those skilled in the art can understand their meanings. For example, in the ORAN system, CU may also be called O-CU (Open CU), DU may also be called O-DU, CU-CP may also be called O-CU-CP, CU-UP may also be called O-CU-UP, and RU may also be called O-RU. For the convenience of description, this application uses CU, CU-CP, CU-UP, DU and RU as examples for description. Any unit of CU (or CU-CP, CU-UP), DU and RU in this application can be implemented by a software module, a hardware module, or a combination of a software module and a hardware module.

[0066] In the embodiments of the present application, the form of the access network device is not limited. The device used to implement the functions of the access network device can be the access network device; it can also be a device that supports the access network device to implement the functions, such as a chip system. The device can be installed in the access network device or used in conjunction with the access network device.

[0067] 3. Positioning network architecture based on PC5 interface:

[0068] Exemplarily, a positioning network architecture based on the PC5 interface is shown in Figure 4, which mainly includes the following network functions and entities: terminal equipment, AMF network element, LMF network element and access network equipment. Optionally, in this positioning network architecture, a location management component (UE-Location Management Component, UE-LMC) can be deployed on the terminal device. UE-LMC is a component / application deployed on the terminal device with partial LMF functions to support positioning services on the PC5 interface.

[0069] Different terminal devices communicate with each other via the PC5 interface, and access network devices and terminal devices communicate with each other via the Uu interface.

[0070] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application. Among them, in the description of the present application, unless otherwise specified, " / " indicates that the objects associated before and after are in an "or" relationship. For example, A / B can represent A or B; "and / or" in the present application is only a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone, where A and B can be singular or plural. In addition, in the description of the present application, unless otherwise specified, "multiple" refers to two or more than two. "At least one of the following" or similar expressions refers to any combination of these items, including any combination of single or plural items. For example, at least one of a, b, or c can represent: a, b, c, ab, ac, bc, or abc, where a, b, c can be single or multiple. In addition, in order to facilitate the clear description of the technical solutions of the embodiments of the present application, in the embodiments of the present application, words such as "first" and "second" are used to distinguish between identical or similar items with substantially the same functions and effects. Those skilled in the art will understand that words such as "first" and "second" do not limit the quantity and execution order, and words such as "first" and "second" do not necessarily limit differences. At the same time, in the embodiments of the present application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or explanations. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present application should not be interpreted as being more preferred or more advantageous than other embodiments or design schemes. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a concrete way for easy understanding.

[0071] In the embodiment of the present application, "indication" may include direct indication and indirect indication, and may also include explicit indication and implicit indication. The information indicated by a certain information (such as the first indication information, the second indication information, or the third indication information below) is called information to be indicated. In the specific implementation process, there are many ways to indicate the information to be indicated, such as but not limited to, the information to be indicated can be directly indicated, such as the information to be indicated itself or the index of the information to be indicated. The information to be indicated can also be indirectly indicated by indicating other information, wherein the other information and the information to be indicated have an association relationship. It is also possible to indicate only a part of the information to be indicated, while the other parts of the information to be indicated are known or agreed in advance. For example, the indication of specific information can be achieved by means of the arrangement order of each information agreed in advance (such as specified in the protocol), thereby reducing the indication overhead to a certain extent. At the same time, the common parts of each information can be identified and indicated uniformly to reduce the indication overhead caused by indicating the same information separately.

[0072] In addition, the specific indication method can also be various existing indication methods, such as but not limited to the above-mentioned indication methods and various combinations thereof. The specific details of the various indication methods can be referred to the prior art and will not be repeated herein. As can be seen from the above, for example, when it is necessary to indicate multiple information of the same type, there may be a situation where the indication methods for different information are different. In the specific implementation process, the required indication method can be selected according to specific needs. The embodiment of the present application does not limit the selected indication method. In this way, the indication method involved in the embodiment of the present application should be understood to cover various methods that can enable the party to be indicated to obtain the information to be indicated.

[0073] It should be understood that the information to be indicated can be sent as a whole or divided into multiple sub-information and sent separately, and the sending period and / or sending time of these sub-information can be the same or different. The specific sending method is not limited in the embodiments of this application. The sending period and / or sending time of these sub-information can be predefined, for example, predefined according to a protocol, or can be configured by the transmitting device by sending configuration information to the receiving device.

[0074] In the embodiment of the present application, "pre-definition", "pre-definition", "pre-configuration" or "pre-configuration" can be implemented by pre-saving corresponding codes, tables or other methods that can be used to indicate relevant information in the device, and the embodiment of the present application does not limit its specific implementation method. Among them, "saving" can mean saving in one or more memories. The one or more memories can be set separately or integrated in an encoder or decoder, a processor, or a communication device. The one or more memories can also be partially set separately and partially integrated in a decoder, a processor, or a communication device. The type of memory can be any form of storage medium, which is not limited by the embodiment of the present application.

[0075] The "protocol" involved in the embodiments of the present application may refer to a protocol family in the communication field, a standard protocol with a similar protocol family frame structure, or a related protocol used in future communication systems. The embodiments of the present application do not make specific limitations on this.

[0076] In the embodiments of the present application, descriptions such as "when...", "in the case of...", "if" and "if" all mean that the device will perform corresponding processing under certain objective circumstances. It does not limit the time, nor does it require the device to perform judgment actions when implemented, nor does it mean that there are other limitations.

[0077] The technical solutions of the embodiments of the present application can be applied to various communication systems, such as wireless network (Wi-Fi) systems, V2X communication systems, D2D communication systems, 4G mobile communication systems such as LTE systems, world-wide interoperability for microwave access (WiMAX) communication systems, 5G mobile communication systems such as new radio (NR) systems, and future communication systems.

[0078] It should be noted that the network architecture and business scenarios described in the embodiments of the present application are intended to more clearly illustrate the technical solutions of the embodiments of the present application, and do not constitute a limitation on the technical solutions provided in the embodiments of the present application. Ordinary technicians in this field can know that with the evolution of network architecture and the emergence of new business scenarios, the technical solutions provided in the embodiments of the present application are also applicable to similar technical problems.

[0079] To facilitate understanding of the embodiments of the present application, the communication system applicable to the embodiments of the present application is first described in detail using the communication system shown in FIG5 as an example.

[0080] For example, as shown in (a) and (b) of FIG5 , the communication system 10 to which the signal configuration method provided in the embodiment of the present application is applicable may include a single or multiple access network devices 20, and a single or multiple terminal devices 30. The access network device 20 may communicate with the terminal device 30 wirelessly. As shown in (a) of FIG5 , a single access network device may transmit data or control signaling to a single or multiple terminal devices. As shown in (b) of FIG5 , multiple access network devices may also simultaneously transmit data or control signaling to a single terminal device.

[0081] Taking the interaction between access network device 20 and terminal device 30 shown in Figure 5 as an example, in the signal configuration method provided in the embodiments of this application, access network device 20 sends first configuration information to terminal device 30, and terminal device 30 responds by obtaining the first configuration information. Terminal device 30 configures a reference signal based on the first configuration information; the reference signal corresponds to at least two subbands at the same time domain location, and adjacent subbands in these at least two subbands are separated in the frequency domain by at least one frequency domain unit. The specific implementation and technical effects of this solution will be described in detail in subsequent method embodiments and are not elaborated here.

[0082] Optionally, the communication system to which the signal configuration method provided in the embodiment of the present application is applicable may be located in the network architecture as shown in FIG3 or FIG4 .

[0083] Optionally, the access network device 20 or the terminal device 30 may adopt the structure of a communication device 600 as shown in FIG6 . As shown in FIG6 , the communication device 600 includes a processor 601, a communication line 602, and at least one communication interface ( FIG6 is merely illustrative, and is described using a communication interface 604 as an example). Optionally, the communication device 600 may further include a memory 603.

[0084] The processor 601 can be a general-purpose central processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more integrated circuits used to control the execution of the program of the present application.

[0085] Communication link 602 may include a pathway for transmitting information between the aforementioned components.

[0086] The communication interface 604 uses any transceiver or other device for communicating with other devices or communication networks, such as Ethernet, radio access network (RAN), wireless local area network (WLAN), etc.

[0087] The memory 603 may be a read-only memory (ROM) or other type of static storage device that can store static information and instructions, a random access memory (RAM) or other type of dynamic storage device that can store information and instructions, or an electrically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM) or other optical disc storage, an optical disc storage (including a compact disc, laser disc, optical disc, digital versatile disc, Blu-ray disc, etc.), a magnetic disk storage medium or other magnetic storage device, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and can be accessed by a computer, but is not limited thereto. The memory may exist independently and be connected to the processor via a communication line 602. The memory may also be integrated with the processor.

[0088] The memory 603 is used to store computer-executable instructions for executing the solution of the present application, and the execution is controlled by the processor 601. The processor 601 is used to execute the computer-executable instructions stored in the memory 603, thereby implementing the methods provided in the following embodiments of the present application.

[0089] Optionally, the computer-executable instructions in the embodiments of the present application may also be referred to as application code or computer program code, which is not specifically limited in the embodiments of the present application.

[0090] In a specific implementation, as an embodiment, the processor 601 may include one or more CPUs, such as CPU0 and CPU1 in FIG6 .

[0091] In a specific implementation, as an embodiment, the communication device 600 may include multiple processors, such as the processor 601 and the processor 608 in FIG6 . Each of these processors may be a single-core (single-CPU) processor or a multi-core (multi-CPU) processor. The processor herein may refer to one or more devices, circuits, and / or processing cores for processing data (e.g., computer program instructions).

[0092] In a specific implementation, as an embodiment, the communication device 600 may further include an output device 605 and an input device 606. The output device 605 communicates with the processor 601 and can display information in a variety of ways. For example, the output device 605 can be a liquid crystal display (LCD), a light emitting diode (LED) display device, a cathode ray tube (CRT) display device, or a projector. The input device 606 communicates with the processor 601 and can receive user input in a variety of ways. For example, the input device 606 can be a mouse, a keyboard, a touch screen device, or a sensor device.

[0093] It is understood that the structure shown in FIG6 does not constitute a specific limitation on the communication device 600. For example, in other embodiments of the present application, the communication device 600 may include more or fewer components than shown, or may combine or separate certain components, or arrange the components differently. The components shown in the figure may be implemented in hardware, software, or a combination of software and hardware.

[0094] The signal configuration method provided in the embodiment of the present application will be described below in detail with reference to Figures 1 to 6 , taking the interaction between the access network device 20 and the terminal device 30 shown in Figure 5 as an example.

[0095] It should be noted that the message names between network elements or the names of parameters in the messages in the following embodiments of the present application are only examples, and other names may be used in specific implementations. The embodiments of the present application do not specifically limit this.

[0096] As shown in Figure 7, a process of a signal configuration method provided in an embodiment of the present application is shown. Figure 7 takes the terminal device and the access network device as the execution subjects of the process as an example to illustrate the method, but the present application does not limit the execution subjects of the process. For example, the terminal device in Figure 7 can also be a module such as a chip, a chip system, or a processor applied to the terminal device, or a logical node, a logical module or software that can realize all or part of the functions of the terminal device. For example, the access network device in Figure 7 can also be a module such as a chip, a chip system, or a processor applied to the access network device, or a logical node, a logical module or software that can realize all or part of the functions of the access network device. The signal configuration method includes steps S701-S702:

[0097] S701. The terminal device obtains first configuration information.

[0098] In S701, after generating first configuration information, the access network device sends the first configuration information to the terminal device. The first configuration information is used to configure a reference signal.

[0099] Optionally, the access network device sending the first configuration information to the terminal device may be triggered by a request message sent by other network elements to the access network device requesting configuration of a reference signal for the terminal device.

[0100] For example, if an LMF network element wishes to locate a terminal device, the LMF network element may send a request message to an access network device serving the terminal device, requesting configuration of a reference signal for the terminal device. Upon receiving the request message, the access network device generates first configuration information and sends it to the terminal device.

[0101] After receiving the first configuration information, the terminal device executes S702.

[0102] S702. The terminal device configures a reference signal according to the first configuration information; the reference signal corresponds to at least two subbands at the same time domain position, and adjacent subbands in the at least two subbands are separated by at least one frequency domain unit in the frequency domain.

[0103] The first configuration information may include information for configuring time domain resources of the reference signal and information for configuring frequency domain resources of the reference signal.

[0104] Optionally, the information used to configure the time domain resources of the reference signal can configure the starting time domain position of the reference signal and the length of the continuous time-frequency resources occupied. In one possible implementation, the information used to configure the time domain resource of the reference signal can configure the time domain unit in which the starting time domain position of the reference signal is located and the number of continuous time domain units occupied by the reference signal.

[0105] The time domain unit may be a time slot, a symbol or other time domain units, and the embodiments of the present application do not impose any specific restrictions on this.

[0106] For example, assuming that the symbol (which can be simply referred to as the starting symbol) at which the starting time domain position of the reference signal configured by the first configuration information is located is symbol 1, and the configured reference signal occupies 2 consecutive symbols in the time domain, then the reference signal configured based on the first configuration information can occupy a continuous time domain resource corresponding to symbol 1 to symbol 2 in the time domain.

[0107] In the embodiment of the present application, the reference signal configured by the first configuration information may correspond to at least two subbands on the same time domain resource, and in the at least two subbands, adjacent subbands are separated by at least one frequency domain unit in the frequency domain.

[0108] The same time domain resource may include one or more time domain units.

[0109] In the embodiment of the present application, a subband can be understood as a continuous frequency domain resource. A subband can occupy one or more frequency domain units.

[0110] Optionally, the frequency domain unit may be a resource block (RB), a resource element (RE) or other resource units occupied in the frequency domain, and the embodiment of the present application does not impose any specific restrictions on this.

[0111] Optionally, at least two subbands of the reference signal may be located in the same bandwidth part (BWP).

[0112] Optionally, the first configuration information may configure multiple subbands of the reference signal by configuring a frequency domain resource and corresponding multiple sets of configuration parameters.

[0113] The following introduces the specific implementation of configuring the subband of the reference signal using the first configuration information.

[0114] Implementation method 1: The first configuration information includes first indication information, the first indication information is used to indicate the first frequency domain resource, and the first configuration information also includes second indication information, the second indication information is used to indicate the positions of at least two subbands in the first frequency domain resource.

[0115] For the first indication information indicating the first frequency domain resource, optionally, the first indication information may indicate the starting frequency domain position of the first frequency domain resource and the resource size of the first frequency domain resource. In one possible implementation, the first indication information may indicate the frequency domain unit in which the starting time domain position of the first frequency domain resource is located and the number of frequency domain units included in the first frequency domain resource.

[0116] For example, assuming that the frequency domain unit is an RB, the first indication information may indicate the BWP where the first frequency domain resource is located, and the number of resource blocks (RBs) between the starting frequency domain position of the first frequency domain resource and the starting frequency domain position of the BWP, so that the terminal device can determine the RB where the starting frequency domain position of the first frequency domain resource is located based on the first indication information. The first indication information may also indicate the number of RBs included in the first frequency domain resource, so that the terminal device can determine the first frequency domain resource in combination with the starting frequency domain position of the first frequency domain resource. For example, assuming that the first indication information indicates that the starting time domain position of the first frequency domain resource is RB0, and the first frequency domain resource includes 272 RBs, the terminal device can determine that the first frequency domain resource is a continuous frequency domain resource from RB0 to RB271.

[0117] Optionally, the first indication information may directly indicate the number of frequency domain units included in the first frequency domain resource. For example, the first indication information is a field, and the value of the field (such as the decimal value converted from the bit value of the field) is the number of frequency domain units. Alternatively, the first indication information may also indirectly indicate the number of frequency domain units included in the first frequency domain resource. The following introduces an exemplary method of indirectly indicating the number of frequency domain units included in the first frequency domain resource.

[0118] In this approach, the terminal device and the access network device pre-agreed / pre-defined / pre-configured a mapping relationship between the value of a parameter included in the first indication information and the number of frequency domain units. The access network device can indicate the number of frequency domain units included in the first frequency domain resource through the value of the parameter in the first indication information. After receiving the first indication information, the terminal device determines the number of frequency domain units corresponding to the value of the parameter as the number of frequency domain units included in the first frequency domain resource.

[0119] For example, it is assumed that the first indication information includes a freqHopping parameter, and the freqHopping parameter includes C SRS Parameters, pre-configured mapping relationship, C SRS The value of the parameter is related to m SRS,0 The values ​​of have corresponding relationship, where m SRS,0 The value of represents the number of frequency domain units included in the first frequency domain resource. Assume that in the preconfigured mapping relationship, C SRS = 0, the corresponding mSRS,0 =4, C SRS =9, the corresponding m SRS,0 =32, then if C in the first indication information SRS =0, the terminal device may determine that the first frequency domain resource includes 4 frequency domain units. If C in the first indication information SRS =9, the terminal device can determine that the first frequency domain resources include 32 frequency domain units.

[0120] The above describes how the first indication information indicates the first frequency domain resource. Regarding how the second indication information indicates the positions of at least two subbands within the first frequency domain resource, in one possible implementation, if the first frequency domain resource is divided into several continuous frequency domain resource segments, the second indication information may indicate which frequency domain resource segment the at least two subbands corresponding to the reference signal belong to, thereby indicating the position of each subband within the first frequency domain resource. The following describes a specific implementation of dividing the first frequency domain resource into several frequency domain resource segments.

[0121] Optionally, the first configuration information may include information indicating the number of resource segments into which the first frequency domain resources are divided.

[0122] The access network device may directly indicate the number of resource segments into which the first frequency domain resources are divided. For example, the indication information is a field whose value is the number of resource segments. Alternatively, the indication information may indirectly indicate the number of resource segments into which the first frequency domain resources are divided. For example, the terminal device and the access network device may pre-agree / pre-define / pre-configure a mapping relationship between the value of a parameter included in the first configuration information and the number of resource segments. The access network device may indicate how many segments the first frequency domain resources are divided into through the value of the parameter in the first configuration information.

[0123] Optionally, the size of each segment of the first frequency domain resource may be the same or different.

[0124] Optionally, the first configuration information may include information indicating the number of frequency domain units included in each segment of the first frequency domain resources.

[0125] The information indicating the number of frequency domain units included in each segment of the first frequency domain resource may be carried in the first indication information or the second indication information, or may be information independent of the first indication information or the second indication information.

[0126] Among them, the information indicating the number of frequency domain units included in each segment of the first frequency domain resource can directly indicate the number of frequency domain units included in each segment of the first frequency domain resource. For example, the indication information is a field, and the value of the field is the number of frequency domain units included in each segment. Alternatively, the indication information can also indirectly indicate the number of frequency domain units included in each segment of the first frequency domain resource. For example, the terminal device and the access network device can pre-agree / pre-define / pre-configure the mapping relationship between the value of a parameter included in the first configuration information and the number of frequency domain units included in each segment of the first frequency domain resource. The access network device can indicate the number of frequency domain units included in each segment of the first frequency domain resource through the value of the parameter in the first configuration information.

[0127] Furthermore, based on each segment of frequency domain resources into which the first frequency domain resources are divided, the second indication information may indicate the sequence number of one or more segments of frequency domain resources, and the terminal device may determine which segment of frequency domain resources the at least two sub-bands corresponding to the reference signal are based on the sequence number indicated by the second indication information. For example, if the second indication information indicates 1, 4, it means that one sub-band is the first segment of frequency domain resources in the first frequency domain resources, and the other sub-band is the fourth segment of frequency domain resources in the first frequency domain resources. The sequence number of each segment of frequency domain resources into which the first frequency domain resources are divided may be determined according to the position order of each segment of frequency domain resources in the frequency domain (for example, the order of frequency domain positions from high to low or from low to high).

[0128] The following introduces a specific example to illustrate the specific implementation of the subband of the reference signal indicated by the first indication information and the second indication information.

[0129] For example, it is assumed that the first configuration information includes a freqHopping parameter and a freqDomainPosition parameter. SRS Parameters and B SRS Parameters. Assume that the frequency domain unit is the frequency domain resource occupied by the RB. The terminal device and access network device are pre-configured with the mapping relationship shown in Table 1.

[0130] Table 1

[0131] In Table 1, C SRS The corresponding m SRS,0 The value of is the number of frequency domain units occupied by the first frequency domain resource. SRS =i, the corresponding N i The value of N1, N2, ..., N i-1 The value of determines how many segments the first frequency domain resource is divided into, and the corresponding m SRS,iThe value of is the number of frequency domain units occupied by a segment of the first frequency domain resource. The value of the freqDomainPosition parameter is used to indicate the frequency domain resource corresponding to which segment of the first frequency domain resource each subband occupies.

[0132] For example, assuming C SRS =9, B SRS =2, freqDomainPosition=1, 4. As shown in Table 1, when C SRS =9, corresponding to C SRS =9 in the row, m SRS,0 =32, indicating that the first frequency domain resource occupies 32 frequency domain units. SRS =2, m SRS,2 =8, indicating that each segment of the first frequency domain resource occupies 8 frequency domain units. N2=2, combined with N1=2, yields 2×2=4, indicating that the first frequency domain resource can be divided into 4 segments. freqDomainPosition=1,4 indicates that the reference signal can correspond to two subbands, one of which occupies the frequency domain resource corresponding to the first segment of the first frequency domain resource, and the other subband occupies the frequency domain resource corresponding to the fourth segment of the first frequency domain resource. Figure 8 is a schematic diagram of the reference signal distribution corresponding to this example. As shown in Figure 8, the two subbands of the reference signal are distributed at both ends of the first frequency domain resource.

[0133] Similarly, if C SRS =9, B SRS =3, as shown in Table 1, corresponding to C SRS =9 in the row, B SRS =3, m SRS,3 =4, indicating that each segment of the first frequency domain resource occupies 4 frequency domain units, N3=2, combined with N1=2, N2=2, we get 2×2×2=8, indicating that the first frequency domain resource can be divided into 8 segments. If freqDomainPosition=1, 5, 8, it means that the reference signal can correspond to three sub-bands, the first sub-band occupies the frequency domain resource corresponding to the first segment of the first frequency domain resource, the second sub-band occupies the frequency domain resource corresponding to the fifth segment of the first frequency domain resource, and the third sub-band occupies the frequency domain resource corresponding to the eighth segment of the first frequency domain resource. Figure 9 is a schematic diagram of the distribution of the reference signal corresponding to this example. As shown in Figure 9, the three sub-bands of the reference signal are respectively distributed at both ends and in the middle of the first frequency domain resource.

[0134] In particular, if freqDomainPosition=0, it means that the reference signal corresponds to one subband, and this subband occupies all the first frequency domain resources.

[0135] For example, the complete content of Table 1 can be referenced in Table 6.4.1.4.3-1 (Table 6.4.1.4.3-1): SRS bandwidth configuration in the 38.211 protocol. Of course, the parameters in Table 1 may also have other values, and the embodiments of the present application do not specifically limit the content of Table 1.

[0136] Exemplarily, the freqDomainPosition parameter may be carried in the first configuration information in the following manner.

[0137] freqDomainPosition1 can take any value in (0, ..., 67), for example, 1, indicating that subband 1 occupies the frequency domain resources corresponding to the first segment in the first frequency domain resources. freqDomainPosition2 can take any value in (0, ..., 67), for example, 4, indicating that subband 2 occupies the frequency domain resources corresponding to the fourth segment in the first frequency domain resources.

[0138] Exemplarily, the freqHopping parameter may be carried in the first configuration information in the following manner.

[0139] Among them, C SRS Can take any value in (0, ..., 63), B SRS Can take any value in (0, ..., 3), C SRS and B SRS The specific implementation of indicating the first frequency domain resource can be referred to the above introduction and will not be elaborated here.

[0140] In the first implementation described above, the access network device can configure a first frequency domain resource using the first indication information, and configure the position of the reference signal subband within the first frequency domain resource using corresponding multiple sets of parameters (i.e., the second indication information), thereby configuring the reference signal. The design of configuring the position of the reference signal subband within the first frequency domain resource using the second indication information reduces the resource overhead of separately configuring the frequency domain position and bandwidth for each subband for multi-subband reference signals, and enables multi-subband reference signals to occupy different frequency domain resources (e.g., different RBs) within the same time domain resource (e.g., the same symbol).

[0141] Implementation method 2: The first configuration information includes third indication information; the third indication information is used to indicate the interval between the frequency domain starting position of other subbands except the first subband in at least two subbands and the frequency domain starting position of the first subband.

[0142] In this implementation, the first configuration information may include information for configuring frequency domain resources occupied by the first sub-band.

[0143] Optionally, the first configuration information may indicate the starting frequency domain position of the first subband and the size of the frequency domain resources occupied by the first subband. In one possible implementation, the first configuration information may indicate the frequency domain unit in which the starting time domain position of the first subband is located and the number of frequency domain units occupied by the first subband. For details, please refer to the above description of the first indication information indicating the first frequency domain resources in Implementation Method 1, which will not be elaborated here.

[0144] Optionally, the first configuration information may directly indicate the number of frequency domain units included in the first subband, or may indicate it indirectly. For details, please refer to the above introduction of the first indication information indicating the first frequency domain resource in implementation manner 1, which will not be elaborated here.

[0145] Furthermore, the third indication information may indicate the number of frequency domain units (which may also be understood as an offset in the frequency domain) between the frequency domain starting position of subbands other than the first subband and the frequency domain starting position of the first subband. For example, assuming that the frequency domain starting position of the first subband of the reference signal is located at RB0, the third indication information may indicate that the frequency domain starting position of another subband of the reference signal differs from the frequency domain starting position of the first subband by 36 RBs. In this case, the terminal device may determine that the frequency domain starting position of the subband is located at RB37.

[0146] Exemplarily, the third indication information may be the freqDomain offset parameter in the first configuration information. For example, the value of the freqDomain offset parameter is 36, indicating that the frequency domain starting position of another subband differs from the frequency domain starting position of the first subband by 36 RBs.

[0147] In this embodiment of the present application, the third indication information corresponds to the indicated subband in a one-to-one correspondence. That is, one piece of third indication information is used to indicate the interval between the frequency domain starting position of a subband and the frequency domain starting position of the first subband. If the reference signal corresponds to at least three subbands (at least two subbands in addition to the first subband), the first configuration information also includes at least two pieces of third indication information. For example, if the reference signal corresponds to three subbands, two freqDomain offset parameters can be configured to indicate the offset between the starting frequency domain position of the remaining two subbands of the three subbands and the starting frequency domain position of the first subband.

[0148] Exemplarily, the freqDomain offset parameter may be carried in the first configuration information in the following manner:

[0149] freqDomain offset SEQUENCE{

[0150] offset1-r19 INTEGER(0..272),

[0151] offset2-r19 INTEGER(0..272),

[0152] Wherein, offset1-r19 can take any value in (0, ..., 272) and is used to indicate the offset between the frequency domain starting position of subband 1 and the frequency domain starting position of the first subband. Offset2-r19 can take any value in (0, ..., 272) and is used to indicate the offset between the frequency domain starting position of subband 2 and the frequency domain starting position of the first subband.

[0153] Optionally, in this implementation, the frequency domain resource sizes occupied by the other subbands of the reference signal may be the same as those of the first subband. That is, the information included in the first configuration information for configuring the frequency domain resource size occupied by the first subband may also be used to configure the frequency domain resource sizes occupied by the other subbands. Alternatively, the frequency domain resource sizes occupied by the other subbands of the reference signal may be different from those of the first subband. In this case, the first configuration information may also include information for configuring the frequency domain resource sizes occupied by the other subbands.

[0154] In the second implementation described above, the access network device can configure multiple subband reference signals by configuring a subband and the offset of other subbands relative to the subband. The design of configuring the frequency domain positions of other subbands using the offset indicated by the third indication information reduces the resource overhead of separately configuring the frequency domain position and bandwidth for each subband, and enables multiple subband reference signals to occupy different frequency domain resources (e.g., different RBs) within the same time domain resource (e.g., the same symbol).

[0155] The above introduces a possible implementation method of the frequency domain resources occupied by at least two sub-bands corresponding to the first configuration information configuration reference signal. As mentioned above, the signal configuration method provided in the embodiment of the present application can realize that the configured reference signal occupies different frequency domain resources on the same time-frequency resource. Furthermore, as shown in Figure 10, if the SRS corresponds to two sub-bands, and these two sub-bands only occupy the frequency domain resources at both ends of the entire bandwidth, and the middle part is not occupied, then this SRS can be called a dual-subband reference signal (DS-RS) (it can also be called other names, and the embodiment of the present application does not limit this). It has been verified by simulation results that when a reference signal such as DS-RS is designed for positioning, it can achieve higher-precision carrier phase positioning, and it can also reduce the load and improve the overall SINR of the signal. Therefore, based on the signal configuration method provided in the embodiment of the present application, it is possible to configure DS-RS, thereby achieving higher-precision carrier phase positioning, reducing the load, and improving the overall SINR of the signal.

[0156] Optionally, the first configuration information may further configure signal sequences corresponding to the at least two subbands. In one possible implementation, the first configuration information may further include fourth indication information, where the fourth indication information is used to indicate identification information (e.g., signal sequence IDs) of the signal sequences corresponding to the at least two subbands, respectively. The signal sequence identification information is used to generate the signal sequence.

[0157] Optionally, the fourth indication information and the subband corresponding to the reference signal may correspond one-to-one. The first configuration information may indicate the signal sequence corresponding to each subband of the reference signal through multiple fourth indication information. Alternatively, one fourth indication information may correspond to multiple subbands, indicating the signal sequences corresponding to the multiple subbands.

[0158] Exemplarily, the fourth indication information may be a sequenceId parameter in the first configuration information.

[0159] Exemplarily, the sequenceId parameter may be carried in the first configuration information in the following manner:

[0160] sequenceId-r19 SEQUENCE{

[0161] sequenceId1 INTEGER(0..65535),

[0162] sequenceId2 INTEGER(0..65535),

[0163] Wherein, sequenceId1 can take any value in (0, ..., 65535), and is used to indicate the ID of the signal sequence of subband 1. sequenceId2 can take any value in (0, ..., 65535), and is used to indicate the ID of the signal sequence of subband 2.

[0164] Based on this solution, different signal sequences can be configured for different subbands through different fourth indication information, thereby reducing the overall peak-to-average power ratio of the signal.

[0165] Optionally, the first configuration information may further include fifth indication information. The fifth indication information is used to indicate the comb size corresponding to at least two subbands of the reference signal. Optionally, the fifth indication information and the subband may have a one-to-one correspondence. The first configuration information may indicate the comb size corresponding to each subband of the reference signal through multiple fifth indication information. Alternatively, one fifth indication information may correspond to multiple subbands, indicating the comb sizes corresponding to the multiple subbands.

[0166] Exemplarily, the fifth indication information may be a comb size parameter in the first configuration information.

[0167] Optionally, the first configuration information may further include sixth indication information, where the sixth indication information is used to indicate the reference signals corresponding to the transmit powers of at least two subbands of the reference signal. Optionally, the sixth indication information and subbands may have a one-to-one correspondence. The first configuration information may include multiple sixth indication information to indicate the reference signals corresponding to the transmit powers of each subband of the reference signal. Alternatively, one sixth indication information may correspond to multiple subbands, indicating the reference signals corresponding to the transmit powers of multiple subbands.

[0168] Exemplarily, the sixth indication information may be the spatialRelationInfoPos parameter in the first configuration information.

[0169] Optionally, the first configuration information may further include other information for configuring a reference signal, which is not limited in this embodiment of the present application.

[0170] Optionally, the reference signal configured with the first configuration information can be used in a carrier phase positioning scenario. In this scenario, after configuring the reference signal according to the first configuration information, the terminal device can send the reference signal to the access network device participating in positioning. In response, the access network device can measure the received reference signal and report the measurement results to the core network element. The core network element can then perform corresponding calculations based on the measurement results to obtain a positioning result.

[0171] For example, if the signal configuration method provided in this application is applied to a carrier phase positioning scenario, a possible carrier phase positioning specific process may be shown in FIG11 , including the following steps:

[0172] S1101. The LMF network element sends a positioning information request message (NRPPa Positioning information request) to the UE's serving base station (Serving gNB) through the NR positioning protocol A (NRPPa), requesting that SRS be configured for the UE.

[0173] S1102: The serving gNB determines available DS-RS resources (uplink resources available for the UE to transmit DS-RS) and sends first configuration information to the UE. The first configuration information is used to configure the DS-RS. For details, refer to the above description of S701 and S702 and are not further elaborated here.

[0174] S1103. The Serving gNB reports the first configuration information to the LMF network element through an NRPPa positioning information response message (NRPPa Positioning information response).

[0175] S1104. The LMF network element sends an NRPPa measurement request message (NRPPa measurement request) including the first configuration information to the neighboring gNB participating in positioning through NRPPa, requesting to measure the DS-RS.

[0176] S1105. The UE sends DS-RS to each gNB (Serving gNB and neighbor gNB) according to the first configuration information.

[0177] It should be noted that the timing between S1103, S1104 and S1105 shown in Figure 11 is only an exemplary possible timing, and the embodiment of the present application does not limit the timing between S1103, S1104 and S1105.

[0178] S1106. Each gNB (Serving gNB and neighbor gNB) measures the DS-RS sent by the UE and obtains a carrier phase measurement result.

[0179] S1107. Each gNB (Serving gNB and neighbor gNB) reports the multi-frequency carrier phase measurement value to the LMF network element through an NRPPa measurement response message (NRPPa measurement response) based on the carrier phase measurement result.

[0180] S1108. The LMF network element performs carrier phase calculation based on the carrier phase measurement value to obtain a UE positioning result.

[0181] It can be understood that in the above embodiments, the methods and / or steps implemented by each device can also be implemented by components that can be used for the device (such as a processor, chip, chip system, circuit, logic module, or software such as a chip or circuit).

[0182] The above mainly introduces the solutions provided by this application from the perspective of interaction between various devices. Accordingly, this application also provides a communication device, which is used to implement the various methods described above. The communication device can be the terminal device or access network device in the above method embodiments, or a device that includes the above devices, or a component that can be used for the above devices.

[0183] It is understandable that, in order to realize the above functions, the communication device includes hardware structures and / or software modules corresponding to the execution of each function. It should be easily appreciated by those skilled in the art that, in combination with the units and algorithm steps of each example described in the embodiments disclosed herein, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in the form of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0184] The embodiment of the present application can divide the functional modules of the communication device according to the above method embodiment. For example, each functional module can be divided according to each function, or two or more functions can be integrated into one processing module. The above integrated modules can be implemented in the form of hardware or in the form of software functional modules. It should be noted that the division of modules in the embodiment of the present application is schematic and is only a logical functional division. In actual implementation, there may be other division methods.

[0185] Figure 12 provides a schematic structural diagram of a communication device 120. Exemplarily, as shown in Figure 12, the communication device 120 includes a transceiver module 1202 and a processing module 1201. For ease of illustration, Figure 12 only shows the main components of the communication device.

[0186] In some embodiments, the communication device 120 may further include a storage module (not shown in FIG. 12 ) for storing program instructions and data.

[0187] In some embodiments, the transceiver module 1202, which may also be referred to as a transceiver unit, is configured to implement a transmitting and / or receiving function. The transceiver module 1202 may be composed of a transceiver circuit, a transceiver, a transceiver, or a communication interface.

[0188] In some embodiments, the transceiver module 1202 may include a receiving module and a sending module, which are respectively used to execute the receiving and sending steps performed by the terminal device or access network device in the above method embodiments, and / or used to support other processes of the technology described herein; the processing module 1201 may be used to execute the processing steps (such as determination, generation, etc.) performed by the terminal device or access network device in the above method embodiments, and / or used to support other processes of the technology described herein.

[0189] When the communication device 120 is used to implement the functions of the above-mentioned terminal device:

[0190] The transceiver module 1202 is configured to receive first configuration information. The processing module 1201 is configured to configure a reference signal based on the first configuration information, wherein the reference signal corresponds to at least two subbands on the same time domain resource, and adjacent subbands in the at least two subbands are separated by at least one frequency domain unit in the frequency domain.

[0191] When the communication device 120 is used to implement the functions of the above-mentioned access network device:

[0192] Processing module 1201 is configured to generate first configuration information. Transceiver module 1202 is configured to send the first configuration information, where the first configuration information is used to configure a reference signal; wherein the reference signal corresponds to at least two subbands on the same time domain resource, and adjacent subbands in the at least two subbands are separated in the frequency domain by at least one frequency domain unit.

[0193] Among them, all relevant contents of each step involved in the above method embodiment can be referred to the functional description of the corresponding functional module and will not be repeated here.

[0194] In this application, the communication device 120 is presented in the form of various functional modules divided in an integrated manner. The "module" here can refer to a specific application-specific integrated circuit (ASIC), a circuit, a processor and memory that executes one or more software or firmware programs, an integrated logic circuit, and / or other devices that can provide the above functions.

[0195] In some embodiments, when the communication device 120 in Figure 12 is a chip or a chip system, the function / implementation process of the transceiver module 1202 can be implemented through the input and output interface (or communication interface) of the chip or chip system, and the function / implementation process of the processing module 1201 can be implemented through the processor (or processing circuit) of the chip or chip system.

[0196] Since the communication device 120 provided in this embodiment can execute the above method, the technical effects that can be obtained can refer to the above method embodiments and will not be repeated here.

[0197] As a possible product form, the above-mentioned communication device 120 can be implemented using the following: one or more field programmable gate arrays (FPGAs), programmable logic devices (PLDs), controllers, state machines, gate logic, discrete hardware components, any other suitable circuits, or any combination of circuits that can perform the various functions described throughout this application.

[0198] In some embodiments, in terms of hardware implementation, those skilled in the art may conceive that the communication device 120 may take the form of the communication device 600 shown in FIG. 6 .

[0199] As an example, the functions / implementation process of the processing module 1201 in FIG12 can be implemented by the processor 601 in the communication device 600 shown in FIG6 calling the computer-executable instructions stored in the memory 603. The functions / implementation process of the transceiver module 1202 in FIG12 can be implemented by the communication interface 604 in the communication device 600 shown in FIG6.

[0200] It should be noted that the structure shown in FIG6 does not constitute a specific limitation on the device structure. For example, in other embodiments of the present application, each of the above devices may include more or fewer components than shown in the figure, or some components may be combined or separated, or the components may be arranged differently. The components shown in the figure may be implemented in hardware, software, or a combination of software and hardware.

[0201] In some embodiments, an embodiment of the present application further provides a communication device, which includes a processor for implementing the method in any of the above method embodiments.

[0202] As a possible implementation, the communication device further includes a memory. The memory is used to store necessary computer programs and data. The computer program may include instructions, and the processor may invoke the instructions in the computer program stored in the memory to instruct the communication device to execute any of the above-described method embodiments. Of course, the memory may not be located in the communication device.

[0203] As another possible implementation, the communication device also includes an interface circuit, which is a code / data read / write interface circuit, and the interface circuit is used to receive computer execution instructions (computer execution instructions are stored in a memory, may be read directly from the memory, or may pass through other devices) and transmit them to the processor.

[0204] As another possible implementation, the communication device further includes a communication interface, where the communication interface is used to communicate with a module outside the communication device.

[0205] It can be understood that the communication device can be a chip or a chip system. When the communication device is a chip system, it can be composed of chips or include chips and other discrete devices. The embodiments of the present application do not specifically limit this.

[0206] The present application also provides a computer-readable storage medium having a computer program or instruction stored thereon, which implements the functions of any of the above method embodiments when executed by a computer.

[0207] The present application also provides a computer program product, which implements the functions of any of the above method embodiments when executed by a computer.

[0208] Those skilled in the art will appreciate that, for the sake of convenience and brevity of description, the specific working processes of the above-described systems, devices, and units may refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0209] It is understood that the systems, devices, and methods described in this application may also be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the units is merely a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection shown or discussed may be through some interface, indirect coupling or communication connection of devices or units, and may be electrical, mechanical, or other forms.

[0210] The units described as separate components may or may not be physically separate, i.e., they may be located in one place or distributed across multiple network units. Components shown as units may or may not be physical units. Some or all of these units may be selected to achieve the objectives of this embodiment as needed.

[0211] In addition, 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.

[0212] In the above embodiments, all or part of the embodiments may be implemented by software, hardware, firmware, or any combination thereof. When implemented using a software program, all or part of the embodiments may be implemented in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of the present application are generated. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via a wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) method. The computer-readable storage medium may be any available medium that a computer can access or a data storage device such as a server or data center that includes one or more media integrated therein. 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 DVD), or a semiconductor medium (e.g., a solid state disk (SSD)). In the embodiment of the present application, the computer may include the aforementioned device.

[0213] Although the present application is described herein in conjunction with various embodiments, in the process of implementing the claimed application, those skilled in the art can understand and implement other changes to the disclosed embodiments by reviewing the drawings, the disclosure, and the appended claims. In the claims, the word "comprising" does not exclude other components or steps, and "a" or "an" does not exclude multiple situations. A single processor or other unit can implement several functions listed in the claims. Certain measures are recorded in different dependent claims, but this does not mean that these measures cannot be combined to produce good results.

[0214] Although the present application has been described with reference to specific features and embodiments thereof, it is apparent that various modifications and combinations may be made thereto without departing from the spirit and scope of the present application. Accordingly, this specification and the drawings are merely illustrative of the present application as defined by the appended claims and are deemed to cover any and all modifications, variations, combinations or equivalents within the scope of the present application. Obviously, those skilled in the art may make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, the present application is intended to include such modifications and variations as fall within the scope of the claims of the present application and their equivalents.

Claims

1. A signal configuration method, characterized in that: The method comprises: receiving first configuration information; According to the first configuration information, a reference signal is configured; the reference signal corresponds to at least two subbands on the same time domain resource, and adjacent subbands in the at least two subbands are spaced apart by at least one frequency domain unit in the frequency domain.

2. A signal configuration method, characterized in that: The method comprises: generating first configuration information; Sending first configuration information; the first configuration information is used to configure a reference signal; the reference signal corresponds to at least two subbands on the same time domain resource, and adjacent subbands in the at least two subbands are separated by at least one frequency domain unit in the frequency domain.

3. The method according to claim 1 or 2, characterized in that: The first configuration information includes first indication information; the first indication information is used to indicate a first frequency domain resource; The first configuration information also includes second indication information; the second indication information is used to indicate positions of the at least two subbands in the first frequency domain resources respectively.

4. The method according to claim 1 or 2, characterized in that: The first configuration information includes third indication information; the third indication information is used to indicate the interval between the frequency domain position of other subbands except the first subband in the at least two subbands and the frequency domain position of the first subband.

5. The method according to any one of claims 1 to 4, characterized in that: The first configuration information includes fourth indication information; the fourth indication information is used to indicate identification information of signal sequences corresponding to the at least two subbands respectively; and the identification information of the signal sequence is used to generate a signal sequence.

6. The method according to any one of claims 1 to 5, characterized in that: The first configuration information includes at least one of fifth indication information and sixth indication information; wherein the fifth indication information is used to indicate the comb structure size corresponding to the at least two subbands respectively; and the sixth indication information is used to indicate the reference signal corresponding to the transmission power of the at least two subbands respectively.

7. The method according to any one of claims 1 to 6, characterized in that: Each subband in the at least two subbands occupies the same number of frequency domain units.

8. The method according to any one of claims 1 to 7, characterized in that: The at least two sub-bands are located in the same partial bandwidth BWP.

9. A communication device, characterized in that: The device comprises: a transceiver module and a processing module; The transceiver module is used to receive first configuration information; The processing module is used to configure a reference signal according to the first configuration information; the reference signal corresponds to at least two subbands on the same time domain resource, and adjacent subbands in the at least two subbands are separated by at least one frequency domain unit in the frequency domain.

10. A communication device, characterized in that: The device comprises: a transceiver module and a processing module; The processing module is used to generate first configuration information; The transceiver module is used to send first configuration information; the first configuration information is used to configure a reference signal; the reference signal corresponds to at least two subbands on the same time domain resource, and adjacent subbands in the at least two subbands are separated by at least one frequency domain unit in the frequency domain.

11. The device according to claim 9 or 10, characterized in that The first configuration information includes first indication information; the first indication information is used to indicate a first frequency domain resource; The first configuration information also includes second indication information; the second indication information is used to indicate positions of the at least two subbands in the first frequency domain resources respectively.

12. The device according to claim 9 or 10, characterized in that The first configuration information includes third indication information; the third indication information is used to indicate the interval between the frequency domain position of other subbands except the first subband in the at least two subbands and the frequency domain position of the first subband.

13. The device according to any one of claims 9 to 12, characterized in that: The first configuration information includes fourth indication information; the fourth indication information is used to indicate identification information of signal sequences corresponding to the at least two subbands respectively; and the identification information of the signal sequence is used to generate a signal sequence.

14. The device according to any one of claims 9 to 12, characterized in that: The first configuration information includes at least one of fifth indication information and sixth indication information; wherein the fifth indication information is used to indicate the comb structure size corresponding to the at least two subbands respectively; and the sixth indication information is used to indicate the reference signal corresponding to the transmission power of the at least two subbands respectively.

15. The device according to any one of claims 9 to 12, characterized in that: Each subband in the at least two subbands occupies the same number of frequency domain units.

16. The device according to any one of claims 9 to 12, characterized in that: The at least two sub-bands are located in the same partial bandwidth BWP.

17. A communication device, characterized in that: The communication device comprises: a processor, wherein the processor is configured to execute instructions stored in a memory; when the instructions are executed by the processor, the communication device executes the method according to any one of claims 1 to 8.

18. A computer-readable storage medium, characterized in that: Instructions are stored thereon, and when the instructions are executed by a computer, the method according to any one of claims 1 to 8 is executed.

19. A computer program product, characterized in that The computer program product comprises instructions, and when the instructions are executed by a computer, the method according to any one of claims 1 to 8 is performed.

20. A chip, characterized in that: The chip includes: a processor, and the processor is used to execute instructions so that a device including the chip performs the method according to any one of claims 1-8.

21. The chip according to claim 20, characterized in that: The chip further comprises a memory, wherein the memory is used to store the instructions.

22. A communication system, characterized in that: The communication system includes a terminal device and an access network device, wherein the terminal device is used to execute the method described in any one of claims 1 or 3-8, and the access network device is used to execute the method described in any one of claims 2-8.

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