Communication method and communication device

Abstract

The invention provides a communication method and a communication device. The method comprises: a terminal receiving indication information sent by an access network device, the indication information indicating a first adjustment amount, the first adjustment amount being used for adjusting a transmission parameter of a pilot signal sent by the terminal, the transmission parameters comprise one or more of the following items: pilot signal phase differences corresponding to different subcarriers, pilot signal phase differences corresponding to different antennas, and amplitude gains of pilot signals. Based on the method, the location information of the user can be prevented from being leaked.

Description

Technical Field

[0001] This application relates to the field of communication technology, and in particular to a communication method and communication device. Background Technology

[0002] The 5G New Radio (NR) standard introduces uplink (UL) channel sounding reference signal (SRS) for positioning measurements.

[0003] SRS (Short-Range Signal) can be transmitted from user equipment (UE) to the base station (BS). The base station measures the SRS to obtain information used for UE location, such as the uplink time difference of arrival (TDOA), angle of arrival (AoA), and angle of departure (AoD). Any device in the network can receive and measure the SRS transmitted by the UE, including unauthorized receivers. This allows unauthorized devices to obtain the user's location information, leading to its leakage. Summary of the Invention

[0004] This application provides a communication method and a communication device that helps to prevent the leakage of users' location information.

[0005] In a first aspect, embodiments of this application provide a communication method. This method can be applied to a terminal side, for example, it can be implemented by a terminal or a communication module / processing module within the terminal, or a circuit or chip within the terminal responsible for communication functions. The method includes: the terminal receiving indication information sent by an access network device, the indication information indicating a first adjustment amount, the first adjustment amount being used to adjust the transmission parameters of a pilot signal sent by the terminal, the transmission parameters including one or more of the following: the phase difference of pilot signals corresponding to different subcarriers, the phase difference of pilot signals corresponding to different antennas, and the amplitude gain of the pilot signal.

[0006] Because the terminal adjusts the transmission parameters of the pilot signal, the transmission parameters of the pilot signal measured by unauthorized devices will be inaccurate. Based on these measured transmission parameters, unauthorized devices cannot determine accurate positioning information and therefore cannot obtain the user's precise location. Therefore, the method described in the first aspect helps prevent the leakage of user location information.

[0007] In one possible embodiment, after receiving the indication information sent by the access network device, the terminal may also receive a first signaling sent by the access network device, which is used to enable the adjustment of transmission parameters.

[0008] Based on this possible implementation, the transmission parameters of the pilot signal can be adjusted more flexibly.

[0009] In one possible embodiment, before receiving the indication information sent by the access network device, the terminal may also send capability information to the access network device, which indicates that the terminal has the ability to adjust transmission parameters.

[0010] Based on this possible implementation, access network devices can accurately determine whether to send instruction information to the terminal.

[0011] In one possible embodiment, the indication information indicates a first adjustment amount, including: the indication information indicates an adjustment amount quantization rule and a quantized value of the first adjustment amount, wherein the adjustment amount quantization rule includes one or more of the following: the range of the adjustment amount of the transmission parameter or the quantization precision of the adjustment amount of the transmission parameter.

[0012] Based on this possible embodiment, the first adjustment amount can be accurately indicated.

[0013] In one possible embodiment, the indication information also indicates a downlink reference signal; the direction of the transmission beam of the terminal transmitting the pilot signal is the same as the direction of the reception beam of the terminal receiving the downlink reference signal.

[0014] Based on this possible implementation, the terminal can accurately determine the direction of the pilot signal transmission beam.

[0015] Secondly, embodiments of this application provide a communication method. This method can be applied to the network side, for example, it can be implemented by an access network device on the network side, a module (e.g., a circuit, chip, or chip system) within the access network device, or a logic node, logic module, or software capable of implementing all or part of the functions of the access network device. In this method: the access network device sends indication information to the terminal, the indication information indicating a first adjustment amount, the first adjustment amount being used to adjust the transmission parameters of the pilot signal sent by the terminal, the transmission parameters including one or more of the following: the phase difference of the pilot signal corresponding to different subcarriers, the phase difference of the pilot signal corresponding to different antennas, and the amplitude gain of the pilot signal.

[0016] In one possible embodiment, the access network device may also send indication information to the first device, which is used to measure the pilot signal sent by the terminal.

[0017] In one possible embodiment, after the access network device sends indication information to the terminal, it may also send a first signaling message to the terminal, which is used to enable the adjustment of transmission parameters.

[0018] In one possible embodiment, after sending indication information to the first device, the access network device may also send a second signaling message to the first device, which is used to enable the transmission parameters of the pilot signal to be corrected.

[0019] In one possible embodiment, before sending indication information to the terminal, the access network device may also receive capability information sent by the terminal, which indicates that the terminal has the ability to adjust transmission parameters.

[0020] In one possible embodiment, the indication information indicates a first adjustment amount, including: the indication information indicates an adjustment amount quantization rule and a quantized value of the first adjustment amount, the adjustment amount quantization rule including one or more of the following: the range of the adjustment amount of the transmission parameter or the quantization precision of the adjustment amount of the transmission parameter.

[0021] In one possible embodiment, the indication information also indicates a downlink reference signal; the direction of the transmission beam of the terminal transmitting the pilot signal is the same as the direction of the reception beam of the terminal receiving the downlink reference signal.

[0022] The beneficial effects in the second aspect can be found in the beneficial effects in the first aspect, and will not be repeated here.

[0023] Thirdly, embodiments of this application provide a communication method. This method can be applied to the terminal side, for example, it can be implemented by the terminal or a communication module / processing module within the terminal, or a circuit or chip within the terminal responsible for communication functions. The method includes: the terminal sending indication information to an access network device, the indication information indicating a first adjustment amount, the first adjustment amount being used to adjust the transmission parameters of a pilot signal sent by the terminal, the transmission parameters including one or more of the following: the phase difference of pilot signals corresponding to different subcarriers, the phase difference of pilot signals corresponding to different antennas, and the amplitude gain of the pilot signal.

[0024] Because the terminal adjusts the transmission parameters of the pilot signal, the transmission parameters of the pilot signal measured by unauthorized devices will be inaccurate. Based on these measured transmission parameters, unauthorized devices cannot determine accurate positioning information and therefore cannot obtain the user's precise location. Therefore, the method described in the third aspect helps prevent the leakage of user location information.

[0025] In one possible embodiment, the terminal may also send a first request to the access network device, the first request being for requesting adjustment of transmission parameters; and may also receive feedback information from the access network device regarding the first request, the feedback information indicating the time and frequency resources for the transmission of the instruction information.

[0026] Based on this possible embodiment, the terminal can flexibly obtain the transmission time and frequency resources of the indication information according to the actual situation, without having to reserve the transmission time and frequency resources of the indication information for the terminal in advance, which helps to avoid resource waste.

[0027] In one possible embodiment, the indication information indicates a first adjustment amount, including: the indication information indicates an adjustment amount quantization rule and a quantized value of the first adjustment amount, wherein the adjustment amount quantization rule includes one or more of the following: the range of the adjustment amount of the transmission parameter or the quantization precision of the adjustment amount of the transmission parameter.

[0028] Based on this possible embodiment, the first adjustment amount can be accurately indicated.

[0029] In one possible embodiment, the indication information also indicates a downlink reference signal; the direction of the transmission beam of the terminal transmitting the pilot signal is the same as the direction of the reception beam of the terminal receiving the downlink reference signal.

[0030] Based on this possible implementation, the terminal can accurately determine the direction of the pilot signal transmission beam.

[0031] Fourthly, embodiments of this application provide a communication method. This method can be applied to the network side, for example, it can be implemented by an access network device on the network side, a module (e.g., a circuit, chip, or chip system) within the access network device, or a logic node, logic module, or software capable of implementing all or part of the functions of the access network device. In this method: the access network device receives indication information sent by a terminal, the indication information indicating a first adjustment amount, the first adjustment amount being used to adjust the transmission parameters of the pilot signal sent by the terminal, the transmission parameters including one or more of the following: the phase difference of pilot signals corresponding to different subcarriers, the phase difference of pilot signals corresponding to different antennas, and the amplitude gain of the pilot signal.

[0032] In one possible embodiment, the access network device may also send indication information to a first device, which is used to measure the pilot signal sent by the terminal.

[0033] In one possible embodiment, the access network device may also receive a first request sent by the terminal, the first request being for requesting adjustment of transmission parameters; the access network device may also send feedback information of the first request to the terminal, the feedback information indicating the time and frequency resources for the transmission of the instruction information.

[0034] In one possible embodiment, the access network device may also send a first signaling message to the terminal, which enables the adjustment of transmission parameters.

[0035] In one possible embodiment, the access network device may also send a second signaling message to the first device, which enables the transmission parameters of the pilot signal to be corrected.

[0036] In one possible embodiment, the indication information indicates a first adjustment amount, including: the indication information indicates an adjustment amount quantization rule and a quantized value of the first adjustment amount, wherein the adjustment amount quantization rule includes one or more of the following: the range of the adjustment amount of the transmission parameter or the quantization precision of the adjustment amount of the transmission parameter.

[0037] In one possible embodiment, the indication information also indicates a downlink reference signal; the direction of the transmission beam of the terminal transmitting the pilot signal is the same as the direction of the reception beam of the terminal receiving the downlink reference signal.

[0038] The beneficial effects of the fourth aspect can be found in the beneficial effects of the third aspect, and will not be repeated here.

[0039] Fifthly, embodiments of this application provide a communication method. This method can be applied to the network side, for example, it can be implemented by a first device on the network side, a module (e.g., a circuit, chip, or chip system) in the first device, or a logic node, logic module, or software capable of implementing all or part of the functions of the first device. In this method:

[0040] The first device receives an indication message sent by the access network device. The indication message indicates a first adjustment amount, which is used to adjust the transmission parameters of the pilot signal sent by the terminal. The transmission parameters include one or more of the following: the phase difference of the pilot signal corresponding to different subcarriers, the phase difference of the pilot signal corresponding to different antennas, and the amplitude gain of the pilot signal.

[0041] In one possible embodiment, after receiving the indication information, the first device may also receive a second signaling sent by the access network device, which is used to enable the transmission parameters of the pilot signal to be corrected.

[0042] The beneficial effects of the fifth aspect can be found in the beneficial effects of the first or third aspects, and will not be repeated here.

[0043] Sixthly, this application provides a communication device that has the function of implementing any one of the first to fifth aspects above. For example, the communication device includes a module, unit, or means corresponding to the operation involved in any one of the first to fifth aspects above. The module, unit, or means can be implemented by software, hardware, or a combination of software and hardware.

[0044] In a seventh aspect, this application provides a communication device including an interface circuit and one or more processors. The one or more processors are coupled to a memory. The memory stores part or all of the necessary computer program or instructions for implementing the functions involved in any of the first to fifth aspects described above. The one or more processors can execute the computer program or instructions, and when the computer program or instructions are executed, cause the communication device to implement the methods in any possible design or implementation of any of the first to fifth aspects described above. The interface circuit is used to implement the communication functions within the communication device and / or the communication functions between the communication device and other devices or components.

[0045] In one possible embodiment, the processor is used to communicate with other devices or components through the interface circuit.

[0046] In one possible embodiment, the communication device may further include the memory.

[0047] The aforementioned communication device may be a terminal, a communication / processing module within a terminal, or a chip within a terminal responsible for communication functions. Alternatively, the aforementioned communication device may be an access network device, or a module (e.g., a circuit, chip, or chip system) within an access network device, or a logic node, logic module, or software capable of implementing all or part of the functions of the access network device. Alternatively, the aforementioned communication device may be a first device, or a module (e.g., a circuit, chip, or chip system) within a first device, or a logic node, logic module, or software capable of implementing all or part of the functions of the first device.

[0048] Eighthly, this application provides a communication system including a terminal and an access network device. In one possible embodiment, the terminal can perform the method described in the first aspect, and the access network device can perform the method described in the second aspect; alternatively, the communication system further includes a first device that can perform the method described in the fifth aspect. In another possible embodiment, the terminal can perform the method described in the third aspect, and the access network device can perform the method described in the fourth aspect; alternatively, the communication system further includes a first device that can perform the method described in the fifth aspect.

[0049] Ninthly, this application provides a computer-readable storage medium storing computer-readable instructions that, when read and executed by a computer, cause the computer to perform the method in any possible embodiment of any of the first to fifth aspects described above.

[0050] In a tenth aspect, this application provides a computer program product that, when read and executed by a computer, causes the computer to perform the method in any possible embodiment of any one of the first to fifth aspects described above. Attached Figure Description

[0051] Figure 1 A schematic diagram of the architecture of a communication system 10 provided for an embodiment of this application;

[0052] Figure 2 A schematic diagram of the architecture of another communication system 20 provided for embodiments of this application;

[0053] Figure 3 A flowchart illustrating a communication method provided in an embodiment of this application;

[0054] Figure 4 A flowchart illustrating a communication method provided in an embodiment of this application;

[0055] Figure 5 A flowchart illustrating a communication method provided in an embodiment of this application;

[0056] Figure 6 A flowchart illustrating a communication method provided in an embodiment of this application;

[0057] Figure 7 A flowchart illustrating a communication method provided in an embodiment of this application;

[0058] Figure 8 A flowchart illustrating a communication method provided in an embodiment of this application;

[0059] Figure 9 A flowchart illustrating a communication method provided in an embodiment of this application;

[0060] Figure 10 A flowchart illustrating a communication method provided in an embodiment of this application;

[0061] Figure 11 A schematic diagram of the structure of a possible communication device provided in the embodiments of this application;

[0062] Figure 12 A schematic diagram of the structure of a possible communication device provided in an embodiment of this application. Detailed Implementation

[0063] To better understand the embodiments of this application, the system architecture involved in the embodiments of this application will be described first below:

[0064] Figure 1 This is a schematic diagram of the architecture of a communication system 10 provided in an embodiment of this application. For example...Figure 1 As shown, the communication system 10 includes a terminal and an access network device. The access network device can send indication information to the terminal. Alternatively, the terminal can send indication information to the access network device. This indication information is used to indicate a first adjustment amount. Thus, the terminal can send a pilot signal with transmission parameters adjusted by the first adjustment amount to the access network device. The transmission parameters include one or more of the following: the phase difference of the pilot signals corresponding to different subcarriers, the phase difference of the pilot signals corresponding to different antennas, and the amplitude gain of the pilot signal. The access network device can measure the pilot signal to obtain the measurement result (i.e., the transmission parameters of the pilot signal) and correct the measurement result based on the first adjustment amount. The corrected measurement result can be used to determine the user's location information.

[0065] Access network equipment, also known as radio access network equipment, radio access network (RAN) nodes, RAN entities, or access nodes, is located in the RAN and is used to help terminals access the communication system wirelessly. The RAN can be an evolved universal terrestrial radio access (E-UTRA) system, a new radio (NR) system, a 6th generation (6G) radio access system, or a future radio access system as defined in the 3rd generation partnership project (3GPP). The RAN can also include two or more of the above-mentioned different radio access systems. The RAN can also be an open RAN (O-RAN). The RAN can also be referred to as an access network (AN).

[0066] In one application scenario, access network equipment can be a base station, an evolved NodeB (eNodeB), a transmission reception point (TRP), a next-generation NodeB (gNB) in a 5G mobile communication system, a next-generation base station in a 6G mobile communication system, or a base station in a future mobile communication system. Access network equipment can be a macro base station, a micro base station, an indoor station, a relay node, or a donor node.

[0067] In another application scenario, multiple access network devices can collaborate to help terminals achieve wireless access, with different access network devices each implementing some of the functions of the base station. For example, the access network devices can be a central unit (CU), a distributed unit (DU), or a radio unit (RU). Here, the CU performs the functions of the base station's Radio Resource Control (RRC) and Packet Data Convergence Protocol (PDCP), and can also perform the functions of the Service Data Adaptation Protocol (SDAP). The DU performs the functions of the base station's Radio Link Control (RANC) and Medium Access Control (MAC) layers, and can also perform some or all of the physical layer functions. For specific descriptions of these protocol layers, refer to the relevant 3GPP technical specifications. The RU can be used to implement radio frequency signal transmission and reception. The CU and DU can be two independent access network devices, or they can be integrated into the same access network device, such as within a baseband unit (BBU). RUs can be included in radio frequency equipment, such as remote radio units (RRUs) or active antenna units (AAUs). CUs can be further divided into two types of access network equipment: CU-control plane and CU-user plane.

[0068] In different systems, access network devices may have different names. For example, in an O-RAN system, a CU can be called an open CU (O-CU), a DU can be called an open DU (O-DU), and an RU can be called an open RU (O-RU). The access network devices in the embodiments of this application can be implemented through software modules, hardware modules, or a combination of software and hardware modules. For example, an access network device can be a server loaded with corresponding software modules. The embodiments of this application do not limit the specific technology or device form used in the access network devices.

[0069] A terminal is a device with wireless transceiver capabilities, capable of sending signals to or receiving signals from access network devices. Terminals can also be referred to as terminal equipment, user equipment (UE), mobile station, mobile terminal, etc. Terminals can be widely used in various scenarios, such as device-to-device (D2D), vehicle-to-everything (V2X) communication, machine-type communication (MTC), Internet of Things (IoT), virtual reality, augmented reality, industrial control, autonomous driving, telemedicine, smart grids, smart furniture, smart offices, smart wearables, smart transportation, smart cities, etc. Terminals can be mobile phones, tablets, computers with wireless transceiver capabilities, wearable devices, vehicles, airplanes, ships, robots, robotic arms, smart home devices, etc. The embodiments of this application do not limit the specific technology or device form used in the terminal.

[0070] In the embodiments of this application, the functions of the access network device can be executed by modules (such as chips) within the access network device, or by a control subsystem that includes access network device functions. This control subsystem, including access network device functions, can be a control center in the aforementioned application scenarios such as smart grids, industrial control, intelligent transportation, and smart cities. Similarly, the functions of the terminal can be executed by modules (such as chips or modems) within the terminal, or by a device that includes terminal functions.

[0071] Figure 2 This is a schematic diagram of the architecture of another communication system 20 provided in an embodiment of this application. For example... Figure 2 As shown, the communication system 20 includes a terminal, an access network device, and a first device. The access network device can send indication information to both the terminal and the first device. Alternatively, the terminal can send indication information to the access network device, and the access network device can send indication information to the first device. This indication information is used to indicate a first adjustment amount. The terminal can send a pilot signal with transmission parameters adjusted by the first adjustment amount to the first device. These transmission parameters include one or more of the following: the phase difference of pilot signals corresponding to different subcarriers, the phase difference of pilot signals corresponding to different antennas, and the amplitude gain of the pilot signal. The first device can measure the pilot signal to obtain the measurement result (i.e., the transmission parameters of the pilot signal) and correct the measurement result based on the first adjustment amount. The corrected measurement result can be used to determine the user's location information.

[0072] For a description of the terminal and access network equipment, please refer to the previous description of the terminal and access network equipment; it will not be repeated here. The first device can be a device with pilot signal measurement capabilities.

[0073] The following explanations of some terms used in the embodiments of this application are provided to facilitate understanding by those skilled in the art. These explanations are for illustrative purposes only and should not be construed as a disclosure or specific limitation of the technical solution of this application.

[0074] I. Beam

[0075] A beam is a communication resource. A beam can be wide, narrow, or other types of beams. The technology used to form a beam can be beamforming or other techniques. Beamforming technology can specifically be digital beamforming, analog beamforming, or hybrid digital / analog beamforming. Different beams can be considered different resources. The same or different information can be transmitted through different beams. Optionally, multiple beams with the same or similar communication characteristics can be considered as a single beam. A beam can include one or more antenna ports for transmitting data channels, control channels, and detection signals, etc. For example, a transmit beam can refer to the signal strength distribution in different directions of space after a signal is transmitted through an antenna, and a receive beam can refer to the signal strength distribution in different directions of space of the wireless signal received from the antenna. It is understood that one or more antenna ports forming a beam can also be considered as a set of antenna ports.

[0076] When using low-frequency or mid-frequency bands, signals can be transmitted omnidirectionally or through a wide angle. When using high-frequency bands, thanks to the smaller carrier wavelength of high-frequency communication systems, antenna arrays consisting of many antenna elements can be arranged at the transmitting and receiving ends. The transmitting end transmits signals with a certain beamforming weight, so that the transmitted signal forms a spatially directional beam. At the same time, the receiving end uses an antenna array with a certain beamforming weight to receive the signal, which can improve the received power at the receiving end and counteract path loss.

[0077] II. Pilot Signal

[0078] Pilot signals can also be called signals or reference signals. In the embodiments of this application, the pilot signals are pilot signals transmitted by the terminal, and can also be called uplink pilot signals. Uplink pilot signals may include, but are not limited to, sounding reference signals (SRS), physical uplink control channel demodulation reference signals (PUCCH-DMRS), uplink data channel demodulation reference signals (PUSCH-DMRS), uplink phase noise tracking reference signals (PTRS), uplink positioning reference signals, etc.

[0079] To prevent the leakage of users' location information, this application provides a communication method and a communication device.

[0080] The communication method and communication device will be further described below with reference to the accompanying drawings. It is understood that this application uses a terminal, access network equipment, and a first device as examples to illustrate the execution of the interaction, but this application does not limit the execution subject of the interaction. For example, the method executed by the terminal in this application can also be implemented by a communication / processing module in the terminal or a circuit or chip in the terminal responsible for communication / processing functions. The method executed by the access network equipment in this application can also be implemented by a module (e.g., circuit, chip, or chip system) in the access network equipment, or a logic node, logic module, or software capable of implementing all or part of the functions of the access network equipment. The method executed by the first device in this application can also be implemented by a module (e.g., circuit, chip, or chip system) in the first device, or a logic node, logic module, or software capable of implementing all or part of the functions of the first device.

[0081] Please see Figure 3 , Figure 3 This is a flowchart illustrating a communication method provided in an embodiment of this application, wherein:

[0082] 301. The access network device sends an indication message to the terminal, the indication message indicating a first adjustment amount, which is used to adjust the transmission parameters of the pilot signal sent by the terminal. Accordingly, the terminal can receive the indication message.

[0083] The transmission parameters include one or more of the following: the phase difference of pilot signals corresponding to different subcarriers, the phase difference of pilot signals corresponding to different antennas, and the amplitude gain of the pilot signals. Correspondingly, the first adjustment amount includes one or more of the following: the adjustment amount of the phase difference of pilot signals corresponding to different subcarriers, the adjustment amount of the phase difference of pilot signals corresponding to different antennas, and the adjustment amount of the amplitude gain of the pilot signals. A description of the pilot signals can be found in the preceding text and will not be repeated here. The indication information can be understood as configuration information; indicating the first adjustment amount can also be understood as indicating the configuration of the first adjustment amount.

[0084] Optionally, the phase difference of the pilot signals corresponding to different subcarriers can be the phase difference of the pilot signals between adjacent subcarriers.

[0085] For example, assuming the terminal transmits pilot signals on subcarrier 1 and subcarrier 2, the phase difference of the pilot signals corresponding to different subcarriers can be the difference between the phase of the pilot signal on subcarrier 1 and the phase of the pilot signal on subcarrier 2.

[0086] For example, suppose a terminal transmits pilot signals on subcarriers 1, 2, and 3. Subcarrier 1 is adjacent to subcarrier 2, and subcarrier 2 is adjacent to subcarrier 3. The phase difference between the pilot signals corresponding to different subcarriers can include phase difference 1 and phase difference 2. Phase difference 1 is the difference between the phase of the pilot signal on subcarrier 1 and the phase of the pilot signal on subcarrier 2. Phase difference 2 is the difference between the phase of the pilot signal on subcarrier 2 and the phase of the pilot signal on subcarrier 3.

[0087] Optionally, the phase difference of the pilot signals corresponding to different antennas can be the phase difference of the pilot signals between adjacent antennas.

[0088] For example, suppose the terminal transmits pilot signals through antenna 1 and antenna 2. The phase difference of the pilot signals corresponding to different antennas can be the phase difference between the pilot signal transmitted by antenna 1 and the pilot signal transmitted by antenna 2.

[0089] For example, suppose a terminal transmits pilot signals through antennas 1, 2, and 3. Antenna 1 is adjacent to antenna 2, and antenna 2 is adjacent to antenna 3. The phase difference between the pilot signals corresponding to different antennas can include phase difference 1 and phase difference 2. Phase difference 1 is the difference between the phase of the pilot signal transmitted by antenna 1 and the phase of the pilot signal transmitted by antenna 2. Phase difference 2 is the difference between the phase of the pilot signal transmitted by antenna 2 and the phase of the pilot signal transmitted by antenna 3.

[0090] In one possible embodiment, the indication information indicating the first adjustment amount is specifically implemented as follows: the indication information indicates an adjustment amount quantization rule and a quantized value of the first adjustment amount. The adjustment amount quantization rule includes one or more of the following: the range of the adjustment amount of the transmission parameter or the quantization precision of the adjustment amount of the transmission parameter. Based on this possible embodiment, the first adjustment amount can be accurately indicated.

[0091] The adjustment amount quantization rule is used to quantize the adjustment amount of the transmission parameters. The adjustment amount quantization rule can also be called the adjustment amount quantization parameter or other names, which are not limited in this embodiment. The quantization precision of the adjustment amount can also be called the quantization step size of the adjustment amount or other names, which are not limited in this embodiment. Knowing the adjustment amount quantization rule and the quantized value of the first adjustment amount, the terminal can determine the specific value of the first adjustment amount.

[0092] For example, suppose the transmission parameters include the adjustment amount of the pilot signal phase difference corresponding to different subcarriers. The adjustment amount quantization rule includes the range of the transmission parameter adjustment amount and the quantization precision of the transmission parameter adjustment amount. The range of the transmission parameter adjustment amount is -30° to 30°. The quantization precision of the transmission parameter adjustment amount is 10°. Then, -30° can be quantized as 0. -20° can be quantized as 1. -10° can be quantized as 2. 0° can be quantized as 3. 10° can be quantized as 4. 20° can be quantized as 5. 30° can be quantized as 6. If the indication information indicates that the quantization value of the first adjustment amount is 2, then the terminal, combined with the adjustment amount quantization rule, can determine that the first adjustment amount is -10°.

[0093] Optionally, if the indication information indicates the range of the adjustment amount of the transmission parameters but does not indicate the quantization precision of the adjustment amount, then the quantization precision of the adjustment amount of the transmission parameters can be predetermined by the protocol. If the indication information indicates the quantization precision of the adjustment amount of the transmission parameters but does not indicate the range of the adjustment amount of the transmission parameters, then the range of the adjustment amount of the transmission parameters can be predetermined by the protocol.

[0094] In another possible embodiment, the indication information may indicate the quantized value of the first adjustment amount, but not the quantization rule for the adjustment amount. The range of the adjustment amount of the transmission parameter and the quantization precision of the adjustment amount of the transmission parameter may be predetermined by the protocol.

[0095] In one possible embodiment, the indication information further indicates a downlink reference signal; the direction of the transmission beam of the pilot signal transmitted by the terminal is the same as the direction of the reception beam of the downlink reference signal received by the terminal. Based on this possible embodiment, the terminal can accurately determine the direction of the transmission beam of the pilot signal.

[0096] In this possible embodiment, if the terminal sends a pilot signal to the access network device (i.e., the access network device is a measuring device for the pilot signal), the purpose of the indication information indicating the downlink reference signal is to notify the terminal that the access network device expects to receive the pilot signal in the direction of the transmission beam of the downlink reference signal. After receiving the indication information, the terminal transmits the pilot signal in the direction of the reception beam of the downlink reference signal. Accordingly, the direction of the reception beam of the access network device for receiving the pilot signal is the same as the direction of the transmission beam of the access network device for transmitting the downlink reference signal.

[0097] If the terminal sends a pilot signal to the first device (i.e., the first device is a measuring device for the pilot signal), the purpose of the indication information indicating the downlink reference signal is to notify the terminal that the first device expects to receive the pilot signal in the direction of the transmission beam of the downlink reference signal. After receiving the indication information, the terminal transmits the pilot signal in the direction of the receiving beam of the downlink reference signal. Accordingly, the direction of the receiving beam of the first device receiving the pilot signal is the same as the direction of the transmission beam of the first device transmitting the downlink reference signal.

[0098] Optionally, if the transmission parameters include the amplitude gain of the pilot signal, and the indication information also indicates a downlink reference signal, the terminal can adjust the amplitude gain of the pilot signal by adjusting the beam gain of the direction of the receiving beam of the downlink reference signal. Alternatively, the terminal can also adjust the amplitude gain of the pilot signal in other ways, which are not limited in the embodiments of this application.

[0099] In one possible embodiment, the first adjustment amount can adjust the transmission parameters of one or more reflection paths of the pilot signal. The reflection path of the pilot signal can also be understood as the transmission path of the pilot signal.

[0100] In one possible embodiment, the indication information, in addition to indicating a first adjustment amount, also indicates one or more other adjustment amounts, the first adjustment amount being used to adjust the transmission parameters of one reflection path of the pilot signal, and the one or more other adjustment amounts adjusting the transmission parameters of one or more other reflection paths of the pilot signal.

[0101] In one possible embodiment, the indication information may also indicate the maximum number of reflection paths for adjusting the transmission parameters. For example, if the indication information indicates that the maximum number of reflection paths for adjusting the transmission parameters is 2, then the terminal may adjust the transmission parameters for a maximum of 2 reflection paths of the pilot signal.

[0102] In this embodiment, after receiving the instruction information, the terminal can send a pilot signal with transmission parameters adjusted by a first adjustment amount. That is, the terminal can adjust the transmission parameters of the pilot signal based on the first adjustment amount. Correspondingly, after a legitimate measuring device measures the transmission parameters of the pilot signal, it can correct the measured transmission parameters based on the first adjustment amount to obtain accurate transmission parameters for the pilot signal.

[0103] The transmission parameters of the pilot signal can be used to determine positioning information, which includes one or more of the following: the angle of arrival (pitch and / or horizontal angle) of the pilot signal, the transmission angle (pitch and / or horizontal angle) of the pilot signal, or the distance between the terminal and the measuring device (such as access network equipment or a first device). This positioning information can be used to determine the user's location. Because the terminal adjusts the transmission parameters of the pilot signal, the transmission parameters of the pilot signal measured by an unauthorized device will be inaccurate. Based on the measured transmission parameters of the pilot signal, the unauthorized device cannot determine accurate positioning information and therefore cannot obtain the user's accurate location. Therefore, based on... Figure 3 The described method helps prevent users' location information from being leaked.

[0104] Please see Figure 4 , Figure 4 This is a flowchart illustrating a communication method provided in an embodiment of this application, wherein:

[0105] 401. (Optional) The terminal sends capability information to the access network device, indicating that the terminal has the ability to adjust transmission parameters. Accordingly, the access network device may receive the capability information.

[0106] In this embodiment, after receiving the capability information, the access network device can determine that the terminal has the ability to adjust transmission parameters based on the capability information. Then, the access network device can send indication information to the terminal so that the terminal can adjust the transmission of the pilot signal based on the first adjustment amount. Therefore, by executing step 401, the access network device can accurately determine whether to send indication information to the terminal.

[0107] In one possible embodiment, the capability information may also indicate the maximum value of the quantization precision of the adjustment amount of the transmission parameters. Alternatively, the capability information may not indicate the maximum value of the quantization precision of the adjustment amount of the transmission parameters; the maximum value of the quantization precision of the adjustment amount of the transmission parameters may be predetermined by the protocol.

[0108] 402. The access network device sends an indication message to the terminal, which indicates a first adjustment amount used to adjust the transmission parameters of the pilot signal transmitted by the terminal. The transmission parameters include one or more of the following: the phase difference of the pilot signal corresponding to different subcarriers, the phase difference of the pilot signal corresponding to different antennas, and the amplitude gain of the pilot signal. Accordingly, the terminal can receive the indication message.

[0109] For a detailed description of step 402, please refer to the description under step 301, which will not be repeated here.

[0110] 403. (Optional) The terminal sends an acknowledgment of the indication information to the access network device. Accordingly, the access network device may receive the acknowledgment.

[0111] In this embodiment, the confirmation feedback indicates that the terminal has successfully received the indication information. After receiving the confirmation feedback, the access network device can determine that the terminal has successfully received the indication information, and thus determine that the terminal will subsequently send a pilot signal with transmission parameters adjusted by the first adjustment amount. This allows the access network device to subsequently correct the transmission parameters of the measured pilot signal using the first adjustment amount. Therefore, by having the terminal send confirmation feedback of the indication information to the access network device, it is beneficial to ensure the consistency of the terminal and the access network device in processing the transmission parameters of the pilot signal, and to help the access network device accurately determine the transmission parameters of the pilot signal.

[0112] 404. (Optional) The access network device sends a first signaling message to the terminal, which enables the adjustment of the transmission parameters of the pilot signal. Accordingly, the terminal may receive the first signaling message.

[0113] In this embodiment of the application, by having the access network device send a first signaling message to the terminal, the transmission parameters of the pilot signal can be adjusted more flexibly.

[0114] In one possible embodiment, the indication information may indicate multiple adjustment amounts, including a first adjustment amount. The first signaling may also indicate the first adjustment amount, which enables adjustment of the transmission parameters by the first adjustment amount. Alternatively, the first signaling may indicate other adjustment amounts in addition to the first adjustment amount, which enables adjustment of the transmission parameters by the first adjustment amount and the other adjustment amounts. That is, the indication information may indicate multiple adjustment amounts, and the first signaling may enable adjustment of the transmission parameters by one or more adjustment amounts indicated by the indication information.

[0115] In one possible embodiment, the indication information may indicate multiple adjustment amounts, including a first adjustment amount. The first signaling may also not indicate an adjustment amount; instead, it may be an enable signal. Upon receiving the enable signal, the terminal implicitly enables the adjustment of the pilot signal's transmission parameters by one or more adjustment amounts indicated by the indication information.

[0116] In another possible embodiment, the indication information may indicate an adjustment amount, which is a first adjustment amount. The first signaling may also indicate the first adjustment amount, which enables adjustment of transmission parameters by the first adjustment amount. Alternatively, the first signaling may not indicate a first adjustment amount; instead, it may be an enable signal, which, upon receiving, defaults to enabling adjustment of transmission parameters by the first adjustment amount.

[0117] In another possible embodiment, the access network device may not send the first signaling to the terminal. After receiving the indication information, the terminal may, by default, enable the adjustment of transmission parameters by the adjustment amount indicated by the indication information.

[0118] 405. (Optional) The terminal sends a pilot signal to the access network equipment, with the transmission parameters adjusted by a first adjustment amount.

[0119] 406. (Optional) The access network equipment measures the pilot signal to obtain the transmission parameters of the pilot signal, and corrects the transmission parameters of the pilot signal based on the first adjustment amount.

[0120] The access network equipment is a measuring device used to measure the pilot signal. The access network equipment can correct the transmission parameters of the measured pilot signal based on a first adjustment amount to obtain the corrected transmission parameters of the pilot signal, i.e., the accurate transmission parameters of the pilot signal. Thus, the user's location can be accurately determined based on the corrected transmission parameters of the pilot signal.

[0121] Please see Figure 5 , Figure 5 This is a flowchart illustrating a communication method provided in an embodiment of this application, wherein:

[0122] 501. The access network device sends an indication message to the terminal, which indicates a first adjustment amount used to adjust the transmission parameters of the pilot signal transmitted by the terminal. The transmission parameters include one or more of the following: the phase difference of the pilot signal corresponding to different subcarriers, the phase difference of the pilot signal corresponding to different antennas, and the amplitude gain of the pilot signal. Accordingly, the terminal can receive the indication message.

[0123] For a detailed description of step 501, please refer to the description under step 301, which will not be repeated here.

[0124] 502. The access network device sends the indication information to the first device. Accordingly, the first device can receive the indication information.

[0125] The first device is a measuring device used to measure the pilot signal. The access network device sends the indication information to the first device. After measuring the pilot signal, the first device can correct the transmission parameters of the measured pilot signal based on a first adjustment amount to obtain accurate transmission parameters.

[0126] Please see Figure 6 , Figure 6 This is a flowchart illustrating a communication method provided in an embodiment of this application, wherein:

[0127] 601. (Optional) The terminal sends capability information to the access network device, indicating that the terminal has the ability to adjust transmission parameters. Accordingly, the access network device may receive the capability information.

[0128] For a detailed description of step 601, please refer to the description under step 401, which will not be repeated here.

[0129] 602. The access network device sends an indication message to the terminal, which indicates a first adjustment amount used to adjust the transmission parameters of the pilot signal sent by the terminal. The transmission parameters include one or more of the following: the phase difference of the pilot signal corresponding to different subcarriers, the phase difference of the pilot signal corresponding to different antennas, and the amplitude gain of the pilot signal. Accordingly, the terminal can receive the indication message.

[0130] For a detailed description of step 602, please refer to the description under step 301, which will not be repeated here.

[0131] 603. (Optional) The terminal sends an acknowledgment of the indication information to the access network device. Accordingly, the access network device may receive the acknowledgment.

[0132] By having the terminal send confirmation feedback of the indication information to the access network device, it is beneficial to ensure the consistency of the terminal and the first device in processing the transmission parameters of the pilot signal, and to help the first device accurately determine the transmission parameters of the pilot signal.

[0133] 604. The access network device sends an indication message to the first device. Accordingly, the first device can receive the indication message.

[0134] For a detailed description of step 604, please refer to the description under step 502, which will not be repeated here.

[0135] 605. (Optional) The first device sends an acknowledgment of the indication information to the access network device. Accordingly, the access network device may receive the acknowledgment.

[0136] By having the first device send confirmation feedback of the indication information to the access network device, it is beneficial to ensure the consistency of the terminal and the first device in processing the transmission parameters of the pilot signal, and to help the first device accurately determine the transmission parameters of the pilot signal.

[0137] 606. (Optional) The access network device sends a first signaling message to the terminal, which enables the adjustment of the transmission parameters of the pilot signal. Accordingly, the terminal may receive the first signaling message.

[0138] For a detailed description of step 606, please refer to the description under step 404, which will not be repeated here.

[0139] 607. (Optional) The access network device sends a second signaling message to the first device, the second signaling message being used to enable the correction of the transmission parameters of the measured pilot signal. Accordingly, the first device may receive the second signaling message.

[0140] The implementation of step 607 is similar to that of step 606, and can be found in the implementation of step 606, which will not be repeated here.

[0141] 608. (Optional) The terminal sends a pilot signal to the first device, the transmission parameters of which have been adjusted by a first adjustment amount.

[0142] 609. (Optional) The first device measures the pilot signal to obtain the transmission parameters of the pilot signal, and corrects the transmission parameters of the pilot signal based on the first adjustment amount.

[0143] The first device is a measuring device used to measure the pilot signal. The first device can correct the transmission parameters of the measured pilot signal based on a first adjustment amount to obtain the corrected transmission parameters of the pilot signal, i.e., the accurate transmission parameters of the pilot signal. Thus, the user's location can be accurately determined based on the corrected transmission parameters of the pilot signal.

[0144] Please see Figure 7 , Figure 7 This is a flowchart illustrating a communication method provided in an embodiment of this application, wherein:

[0145] 701. The terminal sends an indication message to the access network device, the indication message indicating a first adjustment amount, which is used to adjust the transmission parameters of the pilot signal sent by the terminal. The transmission parameters include one or more of the following: the phase difference of the pilot signal corresponding to different subcarriers, the phase difference of the pilot signal corresponding to different antennas, and the amplitude gain of the pilot signal. Accordingly, the access network device can receive the indication message.

[0146] In other words, the terminal can report the first adjustment amount to the access network device. For details regarding the indication information, please refer to the description under step 301, which will not be repeated here. The possible embodiments and optional methods under step 301 can also be applied. Figure 7 The corresponding implementation examples will not be described in detail here.

[0147] In this embodiment, after the terminal sends the instruction information, it can send a pilot signal with transmission parameters adjusted by a first adjustment amount. That is, the terminal can adjust the transmission parameters of the pilot signal based on the first adjustment amount. Correspondingly, after a legitimate measuring device measures the transmission parameters of the pilot signal, it can correct the measured transmission parameters based on the first adjustment amount to obtain accurate transmission parameters for the pilot signal.

[0148] The transmission parameters of the pilot signal can be used to determine positioning information, which includes one or more of the following: the angle of arrival (pitch and / or horizontal angle) of the pilot signal, the transmission angle (pitch and / or horizontal angle) of the pilot signal, or the distance between the terminal and the measuring device (such as access network equipment or a first device). This positioning information can be used to determine the user's location. Because the terminal adjusts the transmission parameters of the pilot signal, the transmission parameters of the pilot signal measured by an unauthorized device will be inaccurate. Based on the measured transmission parameters of the pilot signal, the unauthorized device cannot determine accurate positioning information and therefore cannot obtain the user's accurate location. Therefore, based on... Figure 7 The described method helps prevent users' location information from being leaked.

[0149] Please see Figure 8 , Figure 8 This is a flowchart illustrating a communication method provided in an embodiment of this application, wherein:

[0150] 801. (Optional) The terminal sends a first request to the access network device, the first request being for requesting adjustment of transmission parameters. Accordingly, the access network device may receive the first request.

[0151] 802. (Optional) The access network device sends feedback information of the first request to the terminal, the feedback information indicating the time and frequency resources for the transmission of the instruction information. Accordingly, the terminal may receive the feedback information.

[0152] In this embodiment, after receiving the feedback information, the terminal can send the indication information on the transmission time-frequency resources indicated by the feedback information. By executing steps 801 and 802, the terminal can flexibly obtain the transmission time-frequency resources of the indication information according to the actual situation, without needing to reserve the transmission time-frequency resources of the indication information in advance, which helps to avoid resource waste.

[0153] In another possible embodiment, the terminal may not send a first request to the access network device; instead, the terminal may send indication information on the transmission time-frequency resources predefined in the protocol.

[0154] 803. The terminal sends an indication message to the access network device, the indication message indicating a first adjustment amount, which is used to adjust the transmission parameters of the pilot signal sent by the terminal. The transmission parameters include one or more of the following: the phase difference of the pilot signal corresponding to different subcarriers, the phase difference of the pilot signal corresponding to different antennas, and the amplitude gain of the pilot signal. Accordingly, the access network device can receive the indication message.

[0155] For a detailed description of step 803, please refer to the description under step 701, which will not be repeated here.

[0156] 804. (Optional) The access network device sends a confirmation feedback of this indication information to the terminal. Accordingly, the terminal may receive the confirmation feedback.

[0157] By having the access network device send confirmation feedback of this indication information to the terminal, it is beneficial to ensure the consistency of the terminal and the access network device in processing the transmission parameters of the pilot signal, and to help the access network device accurately determine the transmission parameters of the pilot signal.

[0158] Optionally, the access network device may also send a first signaling message to the terminal, which enables the adjustment of the transmission parameters of the pilot signal. Accordingly, the terminal may receive the first signaling message. For details on how the access network device enables the adjustment of the transmission parameters of the pilot signal, please refer to the description under step 404, which will not be repeated here.

[0159] 805. (Optional) The terminal sends a pilot signal with transmission parameters adjusted by a first adjustment amount to the access network equipment.

[0160] 806. (Optional) The access network equipment measures the pilot signal to obtain the transmission parameters of the pilot signal, and corrects the transmission parameters of the pilot signal based on the first adjustment amount.

[0161] The access network equipment is a measuring device used to measure the pilot signal. The access network equipment can correct the transmission parameters of the measured pilot signal based on a first adjustment amount to obtain the corrected transmission parameters of the pilot signal, i.e., the accurate transmission parameters of the pilot signal. Thus, the user's location can be accurately determined based on the corrected transmission parameters of the pilot signal.

[0162] Please see Figure 9 , Figure 9 This is a flowchart illustrating a communication method provided in an embodiment of this application, wherein:

[0163] 901. The terminal sends an indication message to the access network device, the indication message indicating a first adjustment amount, which is used to adjust the transmission parameters of the pilot signal sent by the terminal. The transmission parameters include one or more of the following: the phase difference of the pilot signal corresponding to different subcarriers, the phase difference of the pilot signal corresponding to different antennas, and the amplitude gain of the pilot signal. Accordingly, the access network device can receive the indication message.

[0164] For a detailed description of step 901, please refer to the description under step 701, which will not be repeated here.

[0165] 902. The access network device sends an instruction message to the first device. Accordingly, the first device can receive the instruction message.

[0166] The first device is a measuring device used to measure the pilot signal. The access network device sends the indication information to the first device. After measuring the pilot signal, the first device can correct the transmission parameters of the measured pilot signal based on a first adjustment amount to obtain accurate transmission parameters.

[0167] Please see Figure 10 , Figure 10 This is a flowchart illustrating a communication method provided in an embodiment of this application, wherein:

[0168] 1001. (Optional) The terminal sends a first request to the access network device, the first request being for requesting adjustment of transmission parameters. Accordingly, the access network device may receive the first request.

[0169] 1002. (Optional) The access network device sends feedback information of the first request to the terminal, the feedback information indicating the time and frequency resources for the transmission of the instruction information. Accordingly, the terminal may receive the feedback information.

[0170] For a detailed description of steps 1001 and 1002, please refer to the descriptions under steps 801 and 802, which will not be repeated here.

[0171] 1003. The terminal sends an indication message to the access network device, the indication message indicating a first adjustment amount, which is used to adjust the transmission parameters of the pilot signal sent by the terminal. The transmission parameters include one or more of the following: the phase difference of the pilot signal corresponding to different subcarriers, the phase difference of the pilot signal corresponding to different antennas, and the amplitude gain of the pilot signal. Accordingly, the access network device can receive the indication message.

[0172] For a detailed description of step 1003, please refer to the description under step 701, which will not be repeated here.

[0173] 1004. (Optional) The access network device sends a confirmation feedback of the indication information to the terminal. Accordingly, the terminal may receive the confirmation feedback.

[0174] By having the access network device send confirmation feedback of the indication information to the terminal, it is beneficial to ensure the consistency of the terminal and the first device in processing the transmission parameters of the pilot signal, and to help the first device accurately determine the transmission parameters of the pilot signal.

[0175] 1005. The access network device sends an instruction message to the first device. Accordingly, the first device can receive the instruction message.

[0176] For a detailed description of step 1005, please refer to the description under step 902, which will not be repeated here.

[0177] 1006. (Optional) The first device sends an acknowledgment of the indication information to the access network device. Accordingly, the access network device may receive the acknowledgment.

[0178] By having the first device send confirmation feedback of the indication information to the access network device, it is beneficial to ensure the consistency of the terminal and the first device in processing the transmission parameters of the pilot signal, and to help the first device accurately determine the transmission parameters of the pilot signal.

[0179] Optionally, the access network device may also send a first signaling message to the terminal, which enables the adjustment of the transmission parameters of the pilot signal. Accordingly, the terminal may receive the first signaling message. For details on how the access network device enables the adjustment of the transmission parameters of the pilot signal, please refer to the description under step 404, which will not be repeated here.

[0180] Optionally, the access network device may also send a second signaling message to the first device, which enables the correction of the transmission parameters of the measured pilot signal. Correspondingly, the terminal may receive this second signaling message. For details on the specific implementation of enabling the correction of the transmission parameters of the measured pilot signal by the access network device, please refer to the specific implementation of enabling the adjustment of the transmission parameters of the pilot signal by the access network device, which will not be repeated here.

[0181] 1007. (Optional) The terminal sends a pilot signal to the first device, the transmission parameters of which have been adjusted by a first adjustment amount.

[0182] 1008. (Optional) The first device measures the pilot signal to obtain the transmission parameters of the pilot signal, and corrects the transmission parameters of the pilot signal based on the first adjustment amount.

[0183] The first device is a measuring device used to measure the pilot signal. The first device can correct the transmission parameters of the measured pilot signal based on a first adjustment amount to obtain the corrected transmission parameters of the pilot signal, i.e., the accurate transmission parameters of the pilot signal. Thus, the location of the terminal can be accurately determined based on the corrected transmission parameters of the pilot signal.

[0184] It is understood that, in order to achieve the functions in the above embodiments, the access network device and terminal include hardware structures and / or software modules corresponding to perform each function. Those skilled in the art should readily recognize that, based on the units and method steps of the various examples described in conjunction with the embodiments disclosed in this application, this application can be implemented in hardware or a combination of hardware and computer software. Whether a function is executed by hardware or by computer software driving hardware depends on the specific application scenario and design constraints of the technical solution.

[0185] Figure 11 The diagram illustrates the possible structures of communication devices provided in the embodiments of this application. These communication devices can be used to implement the functions of the terminal, access network device, or first device in the above method embodiments, and thus can also achieve the beneficial effects of the above method embodiments. In the embodiments of this application, the communication device can be a terminal, access network device, or first device, or it can be a module (such as a chip) applied to the terminal, access network device, or first device.

[0186] like Figure 11 As shown, the communication device 1100 includes a processing unit 1110 and a transceiver unit 1120. The communication device 1100 is used to implement the above-mentioned... Figures 3 to 10 The functions of the terminal, access network device, or first device in any of the method embodiments shown.

[0187] When the communication device 1100 is used to implement the functions of a terminal:

[0188] The transceiver unit 1120 is used to receive indication information sent by the access network device. The indication information indicates a first adjustment amount, which is used to adjust the transmission parameters of the pilot signal sent by the terminal. The transmission parameters include one or more of the following: the phase difference of the pilot signal corresponding to different subcarriers, the phase difference of the pilot signal corresponding to different antennas, and the amplitude gain of the pilot signal.

[0189] In one possible embodiment, the transceiver unit 1120 is further configured to receive a first signaling sent by the access network device after receiving the indication information sent by the access network device, the first signaling being used to enable the adjustment of transmission parameters.

[0190] In one possible embodiment, the transceiver unit 1120 is further configured to send capability information to the access network device before receiving indication information sent by the access network device, the capability information indicating that the terminal has the ability to adjust transmission parameters.

[0191] In one possible embodiment, the indication information indicates a first adjustment amount, including: the indication information indicates an adjustment amount quantization rule and a quantized value of the first adjustment amount, the adjustment amount quantization rule including one or more of the following: the range of the adjustment amount of the transmission parameter or the quantization precision of the adjustment amount of the transmission parameter.

[0192] In one possible embodiment, the indication information also indicates a downlink reference signal; the direction of the transmission beam of the terminal transmitting the pilot signal is the same as the direction of the reception beam of the terminal receiving the downlink reference signal.

[0193] When the communication device 1100 is used to implement the functions of an access network device:

[0194] The transceiver unit 1120 is used to send indication information to the terminal. The indication information indicates a first adjustment amount, which is used to adjust the transmission parameters of the pilot signal sent by the terminal. The transmission parameters include one or more of the following: the phase difference of the pilot signal corresponding to different subcarriers, the phase difference of the pilot signal corresponding to different antennas, and the amplitude gain of the pilot signal.

[0195] In one possible embodiment, the transceiver unit 1120 is further configured to send indication information to a first device, which is configured to measure the pilot signal sent by the terminal.

[0196] In one possible embodiment, the transceiver unit 1120 is further configured to send a first signaling message to the terminal after sending indication information to the terminal, the first signaling message being configured to enable adjustment of transmission parameters.

[0197] In one possible embodiment, the transceiver unit 1120 is further configured to send a second signaling to the first device after sending indication information to the first device, the second signaling being configured to enable the correction of the transmission parameters of the pilot signal.

[0198] In one possible embodiment, the transceiver unit 1120 is further configured to receive capability information sent by the terminal before sending indication information to the terminal, the capability information indicating that the terminal has the ability to adjust transmission parameters.

[0199] In one possible embodiment, the indication information indicates a first adjustment amount, including: the indication information indicates an adjustment amount quantization rule and a quantized value of the first adjustment amount, the adjustment amount quantization rule including one or more of the following: the range of the adjustment amount of the transmission parameter or the quantization precision of the adjustment amount of the transmission parameter.

[0200] In one possible embodiment, the indication information also indicates a downlink reference signal; the direction of the transmission beam of the terminal transmitting the pilot signal is the same as the direction of the reception beam of the terminal receiving the downlink reference signal.

[0201] When the communication device 1100 is used to implement the function of the first device:

[0202] The transceiver unit 1120 is used to receive indication information sent by the access network device. The indication information indicates a first adjustment amount, which is used to adjust the transmission parameters of the pilot signal sent by the terminal. The transmission parameters include one or more of the following: the phase difference of the pilot signal corresponding to different subcarriers, the phase difference of the pilot signal corresponding to different antennas, and the amplitude gain of the pilot signal.

[0203] In one possible embodiment, the transceiver unit 1120 is further configured to receive a second signaling sent by the access network device after receiving the indication information, the second signaling being configured to enable the transmission parameters of the modified pilot signal.

[0204] When the communication device 1100 is used to implement the functions of a terminal:

[0205] The transceiver unit 1120 is used to send indication information to the access network equipment. The indication information indicates a first adjustment amount. The first adjustment amount is used to adjust the transmission parameters of the pilot signal sent by the terminal. The transmission parameters include one or more of the following: the phase difference of the pilot signal corresponding to different subcarriers, the phase difference of the pilot signal corresponding to different antennas, and the amplitude gain of the pilot signal.

[0206] In one possible embodiment, the transceiver unit 1120 is further configured to send a first request to the access network device, the first request being for requesting adjustment of transmission parameters; the transceiver unit 1120 is further configured to receive feedback information of the first request sent by the access network device, the feedback information indicating the time and frequency resources for the transmission of the instruction information.

[0207] In one possible embodiment, the transceiver unit 1120 is further configured to receive a first signaling sent by the access network device after sending the indication information, the first signaling being used to enable the adjustment of transmission parameters.

[0208] In one possible embodiment, the indication information indicates a first adjustment amount, including: the indication information indicates an adjustment amount quantization rule and a quantized value of the first adjustment amount, wherein the adjustment amount quantization rule includes one or more of the following: the range of the adjustment amount of the transmission parameter or the quantization precision of the adjustment amount of the transmission parameter.

[0209] In one possible embodiment, the indication information also indicates a downlink reference signal; the direction of the transmission beam of the terminal transmitting the pilot signal is the same as the direction of the reception beam of the terminal receiving the downlink reference signal.

[0210] When the communication device 1100 is used to implement the functions of an access network device:

[0211] The transceiver unit 1120 is used to receive indication information sent by the terminal. The indication information indicates a first adjustment amount, which is used to adjust the transmission parameters of the pilot signal sent by the terminal. The transmission parameters include one or more of the following: the phase difference of the pilot signal corresponding to different subcarriers, the phase difference of the pilot signal corresponding to different antennas, and the amplitude gain of the pilot signal.

[0212] In one possible embodiment, the transceiver unit 1120 is further configured to send indication information to a first device, which is configured to measure the pilot signal sent by the terminal.

[0213] In one possible embodiment, the transceiver unit 1120 is further configured to receive a first request sent by the terminal, the first request being for requesting adjustment of transmission parameters; the transceiver unit 1120 is further configured to send feedback information of the first request to the terminal, the feedback information indicating the time and frequency resources for the transmission of the instruction information.

[0214] In one possible embodiment, the transceiver unit 1120 is further configured to send a first signaling to the terminal after receiving the indication information, the first signaling being configured to enable the adjustment of transmission parameters.

[0215] In one possible embodiment, the transceiver unit 1120 is further configured to send a second signaling to the first device after sending indication information to the first device, the second signaling being configured to enable the correction of the transmission parameters of the pilot signal.

[0216] In one possible embodiment, the indication information indicates a first adjustment amount, including: the indication information indicates an adjustment amount quantization rule and a quantized value of the first adjustment amount, wherein the adjustment amount quantization rule includes one or more of the following: the range of the adjustment amount of the transmission parameter or the quantization precision of the adjustment amount of the transmission parameter.

[0217] In one possible embodiment, the indication information also indicates a downlink reference signal; the direction of the transmission beam of the terminal transmitting the pilot signal is the same as the direction of the reception beam of the terminal receiving the downlink reference signal.

[0218] like Figure 12 As shown, the communication device 1200 includes a processor 1210 and an interface circuit 1220. The processor 1210 and the interface circuit 1220 are coupled to each other. It is understood that the interface circuit 1220 can be a transceiver or an input / output interface. Optionally, the communication device 1200 may also include a memory 1230 for storing instructions executed by the processor 1210, or storing input data required by the processor 1210 to execute instructions, or storing data generated after the processor 1210 executes instructions.

[0219] The processor 1210 is used to implement the functions of the processing unit 1110, and the interface circuit 1220 is used to implement the functions of the transceiver unit 1120.

[0220] When the aforementioned communication device is a chip applied to a terminal, the terminal chip implements the functions of the terminal in the above method embodiments. The terminal chip receives information from other modules (such as radio frequency modules or antennas) in the terminal, which is sent to the terminal by the access network device; or, the terminal chip sends information to other modules (such as radio frequency modules or antennas) in the terminal, which is sent by the terminal to the access network device or the first device.

[0221] When the aforementioned communication device is a module applied to an access network device, the access network device module implements the functions of the access network device in the above method embodiments. The access network device module receives information from other modules (such as radio frequency modules or antennas) in the access network device, which is information sent to the access network device by the terminal or the first device; or, the access network device module sends information to other modules (such as radio frequency modules or antennas) in the access network device, which is information sent to the terminal or the first device by the access network device. Here, the access network device module can be the baseband chip of the access network device, or it can be a DU or other modules. The DU here can be a DU under an open radio access network (O-RAN) architecture.

[0222] When the aforementioned communication device is a module applied to the first device, the module of the first device implements the functions of the first device in the above method embodiments. The module of the first device receives information from other modules (such as radio frequency modules or antennas) in the first device, which is sent to the first device by a terminal or access network device; or, the module of the first device sends information to other modules (such as radio frequency modules or antennas) in the first device, which is sent to a terminal or access network device by the first device.

[0223] In this application, entity A sends information to entity B, either directly or indirectly through other entities. Similarly, entity B receives information from entity A, either directly or indirectly through other entities. Entities A and B can be RAN nodes or terminals, or modules within RAN nodes or terminals. Information transmission and reception can be between RAN nodes and terminals, such as between a base station and a terminal; between two RAN nodes, such as between a CU and a DU; or between different modules within a single device, such as between a terminal chip and other modules of the terminal, or between a base station chip and other modules of the base station.

[0224] It is understood that the processor in the embodiments of this application can be a central processing unit, or other general-purpose processors, digital signal processors, application-specific integrated circuits, field-programmable gate arrays, or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. A general-purpose processor can be a microprocessor or any conventional processor.

[0225] The method steps in the embodiments of this application can be implemented in hardware or by a processor executing software instructions. The software instructions can consist of corresponding software modules, which can be stored in random access memory, flash memory, read-only memory, programmable read-only memory, erasable programmable read-only memory, electrically erasable programmable read-only memory, registers, hard disks, portable hard disks, optical discs, or any other form of storage medium known in the art. An exemplary storage medium is coupled to a processor, enabling the processor to read information from and write information to the storage medium. Of course, the storage medium can also be a component of the processor. The processor and storage medium can reside in an application-specific integrated circuit (ASIC). Additionally, the ASIC can reside in a network device or a terminal device. Alternatively, the processor and storage medium can exist as discrete components in the network device or terminal device.

[0226] In the above embodiments, implementation can be achieved entirely or partially through software, hardware, firmware, or any combination thereof. When implemented using software, it can be implemented entirely or partially in the form of a computer program product. The computer program product includes one or more computer programs or instructions. When the computer program or instructions are loaded and executed on a computer, the processes or functions described in the embodiments of this application are performed entirely or partially. The computer can be a general-purpose computer, a special-purpose computer, a computer network, a network device, a user equipment, or other programmable device. The computer program or instructions can be stored in a computer-readable storage medium or transferred from one computer-readable storage medium to another. For example, the computer program or instructions can be transferred from one website, computer, server, or data center to another website, computer, server, or data center via wired or wireless means. The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that integrates one or more available media. The available medium can be a magnetic medium, such as a floppy disk, hard disk, or magnetic tape; it can also be an optical medium, such as a digital video optical disc; or it can be a semiconductor medium, such as a solid-state drive. The computer-readable storage medium may be a volatile or non-volatile storage medium, or may include both types of storage media.

[0227] In the various embodiments of this application, unless otherwise specified or in case of logical conflict, the terminology and / or descriptions of different embodiments are consistent and can be referenced by each other. The technical features of different embodiments can be combined to form new embodiments according to their inherent logical relationship.

[0228] In this application, "at least one" means one or more, and "more than one" means two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone, where A and B can be singular or plural. In the textual description of this application, the character " / " generally indicates an "or" relationship between the preceding and following related objects; in the formulas of this application, the character " / " indicates a "division" relationship between the preceding and following related objects. "Including at least one of A, B, and C" can mean: including A; including B; including C; including A and B; including A and C; including B and C; including A, B, and C.

[0229] It is understood that the various numerical designations used in the embodiments of this application are merely for descriptive convenience and are not intended to limit the scope of the embodiments of this application. The order of the process numbers described above does not imply the order of execution; the execution order of each process should be determined by its function and internal logic.

Claims

1. A communication method, characterized in that, The method includes: The terminal receives an indication message sent by the access network device. The indication message indicates a first adjustment amount, which is used to adjust the transmission parameters of the pilot signal sent by the terminal. The transmission parameters include one or more of the following: the phase difference of the pilot signal corresponding to different subcarriers, the phase difference of the pilot signal corresponding to different antennas, and the amplitude gain of the pilot signal.

2. The method according to claim 1, characterized in that, After the terminal receives the indication information sent by the access network device, the method further includes: The terminal receives a first signaling message sent by the access network device, the first signaling message being used to enable the adjustment of the transmission parameters.

3. The method according to claim 1 or 2, characterized in that, Before the terminal receives the indication information sent by the access network device, the method further includes: The terminal sends capability information to the access network device, the capability information indicating that the terminal has the ability to adjust the transmission parameters.

4. The method according to any one of claims 1 to 3, characterized in that, The indication information indicates the first adjustment amount, including: The indication information indicates the adjustment amount quantization rule and the quantization value of the first adjustment amount. The adjustment amount quantization rule includes one or more of the following: the range of the adjustment amount of the transmission parameter or the quantization accuracy of the adjustment amount of the transmission parameter.

5. The method according to any one of claims 1 to 4, characterized in that, The indication information also indicates a downlink reference signal; the direction of the transmitting beam of the terminal sending the pilot signal is the same as the direction of the receiving beam of the terminal receiving the downlink reference signal.

6. A communication method, characterized in that, The method includes: The access network device sends an indication message to the terminal, the indication message indicating a first adjustment amount, the first adjustment amount being used to adjust the transmission parameters of the pilot signal sent by the terminal, the transmission parameters including one or more of the following: the phase difference of the pilot signal corresponding to different subcarriers, the phase difference of the pilot signal corresponding to different antennas, and the amplitude gain of the pilot signal.

7. The method according to claim 6, characterized in that, The method further includes: The access network device sends the indication information to the first device, which is used to measure the pilot signal sent by the terminal.

8. The method according to claim 6 or 7, characterized in that, After the access network device sends indication information to the terminal, the method further includes: The access network device sends a first signaling message to the terminal, the first signaling message being used to enable the adjustment of the transmission parameters.

9. The method according to any one of claims 6 to 8, characterized in that, Before the access network device sends indication information to the terminal, the method further includes: The access network device receives capability information sent by the terminal, the capability information indicating that the terminal has the ability to adjust the transmission parameters.

10. The method according to any one of claims 6 to 9, characterized in that, The indication information indicates the first adjustment amount, including: The indication information indicates the adjustment amount quantization rule and the quantization value of the first adjustment amount. The adjustment amount quantization rule includes one or more of the following: the range of the adjustment amount of the transmission parameter or the quantization accuracy of the adjustment amount of the transmission parameter.

11. The method according to any one of claims 6 to 10, characterized in that, The indication information also indicates a downlink reference signal; the direction of the transmitting beam of the terminal sending the pilot signal is the same as the direction of the receiving beam of the terminal receiving the downlink reference signal.

12. A communication method, characterized in that, The method includes: The terminal sends an indication message to the access network device. The indication message indicates a first adjustment amount, which is used to adjust the transmission parameters of the pilot signal sent by the terminal. The transmission parameters include one or more of the following: the phase difference of the pilot signal corresponding to different subcarriers, the phase difference of the pilot signal corresponding to different antennas, and the amplitude gain of the pilot signal.

13. The method according to claim 12, characterized in that, The method further includes: The terminal sends a first request to the access network device, the first request being used to request adjustment of the transmission parameters; The terminal receives feedback information from the access network device regarding the first request, and the feedback information indicates the transmission time and frequency resources of the indication information.

14. The method according to claim 12 or 13, characterized in that, The indication information indicates the first adjustment amount, including: The indication information indicates the adjustment amount quantization rule and the quantization value of the first adjustment amount. The adjustment amount quantization rule includes one or more of the following: the range of the adjustment amount of the transmission parameter or the quantization accuracy of the adjustment amount of the transmission parameter.

15. The method according to any one of claims 12 to 14, characterized in that, The indication information also indicates a downlink reference signal; the direction of the transmitting beam of the terminal sending the pilot signal is the same as the direction of the receiving beam of the terminal receiving the downlink reference signal.

16. A communication method, characterized in that, The method includes: The access network device receives an indication message sent by the terminal. The indication message indicates a first adjustment amount, which is used to adjust the transmission parameters of the pilot signal sent by the terminal. The transmission parameters include one or more of the following: the phase difference of the pilot signal corresponding to different subcarriers, the phase difference of the pilot signal corresponding to different antennas, and the amplitude gain of the pilot signal.

17. The method according to claim 16, characterized in that, The method further includes: The access network device sends the indication information to the first device, which is used to measure the pilot signal sent by the terminal.

18. The method according to claim 16 or 17, characterized in that, The method further includes: The access network device receives a first request sent by the terminal, the first request being used to request adjustment of the transmission parameters; The access network device sends feedback information of the first request to the terminal, and the feedback information indicates the time and frequency resources for the transmission of the indication information.

19. The method according to any one of claims 16 to 18, characterized in that, The indication information indicates the first adjustment amount, including: The indication information indicates the adjustment amount quantization rule and the quantization value of the first adjustment amount. The adjustment amount quantization rule includes one or more of the following: the range of the adjustment amount of the transmission parameter or the quantization accuracy of the adjustment amount of the transmission parameter.

20. The method according to any one of claims 16 to 19, characterized in that, The indication information also indicates a downlink reference signal; the direction of the transmitting beam of the terminal sending the pilot signal is the same as the direction of the receiving beam of the terminal receiving the downlink reference signal.

21. A communication device comprising a module for performing the method as claimed in any one of claims 1 to 20.

22. A communication device, characterized in that, The device includes a processor and an interface circuit, wherein the interface circuit is used to receive signals from other communication devices and transmit them to the processor or to send signals from the processor to other communication devices, and the processor is used to implement the method as described in any one of claims 1 to 20 through logic circuits or executing code instructions.

23. A computer-readable storage medium, characterized in that, The storage medium stores a computer program or instructions, which, when executed by a communication device, implement the method as described in any one of claims 1 to 20.

24. A computer program product, comprising a computer program or instructions, characterized in that, When the computer program or instructions are executed by the communication device, the method as described in any one of claims 1 to 20 is implemented.

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