Communication method, communication device and communication system

Abstract

The invention discloses a communication method, a communication device and a communication system, and relates to the technical field of communication. The method comprises: a first communication device sending a first message, correspondingly, a positioning management service (LMF) receiving the first message, the first message comprising a first measurement result corresponding to a first signal and first indication information, the first indication information indicating channel quality of a first channel transmitting the first signal, the first signal being used for positioning a terminal device; and the LMF determines position information of the terminal device based on the first measurement result and the first indication information. By adopting the embodiment of the invention, the accuracy of the obtained position information of the terminal equipment can be improved.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to a communication method, a communication device and a communication system. Background Art

[0002] In a wireless communication system, the location management function (LMF) can provide a positioning function for a terminal device. When the LMF provides a positioning service for a terminal device, the LMF can request the network device to measure the sounding reference signal (SRS) of the terminal device. After receiving the instruction from the LMF, the network device receives the SRS sent by the terminal device and measures the arrival time or angle or carrier phase of the SRS and other related measurement quantities. The network device reports the measurement quantity to the LMF, and the LMF uses the received measurement quantity to determine the location information of the terminal device.

[0003] However, the accuracy of the location information of the terminal device obtained by the above method is not high. Summary of the invention

[0004] The embodiments of the present application disclose a communication method, a communication device and a communication system, which can improve the accuracy of the location information of the terminal device obtained.

[0005] On the first aspect, an embodiment of the present application provides a communication method, which can be executed by LMF. The terminal device here can refer to the terminal device itself, or it can refer to a processor, module, chip, or chip system that implements the method in the terminal device, without limitation.

[0006] The method includes:

[0007] Receive a first message, the first message including a first measurement result and first indication information corresponding to a first signal, the first indication information indicating a channel quality of a first channel for transmitting the first signal, the first signal being used to locate a terminal device; determine the location information of the terminal device based on the first measurement result and the first indication information.

[0008] In the embodiment of the present application, the first measurement result is obtained by measuring the first signal by the first communication device, and the channel quality of the first channel can affect the first measurement result. For example, when the channel quality of the first channel is high, when the first communication device measures the first signal, the accuracy of the first measurement result obtained is high, and the accuracy of the location information of the terminal device obtained by positioning and solving based on the first measurement result is high. Therefore, LMF can determine the quality of the first measurement result based on the channel quality of the first channel, so that the terminal device can be located in combination with the first measurement result and its quality, thereby improving the accuracy of the location information of the terminal device obtained.

[0009] In combination with the first aspect, in a possible implementation method, the first indication information indicates whether the first channel belongs to or does not belong to a first channel type; when the first channel belongs to the first channel type, the first transmission path in the first channel is the transmission path with the strongest energy among multiple transmission paths of the first channel, and the first transmission path is the first transmission path to arrive among the multiple transmission paths.

[0010] In an embodiment of the present application, the first transmission path is the first transmission path to arrive among the multiple transmission paths of the first channel, that is, the signal transmitted on the first transmission path is first received by the first communication device, and the first transmission path may also be referred to as the first path. The first channel type may also be referred to as a strong direct path channel type. When the first channel belongs to the first channel type, the signal transmitted on the first transmission path is less interfered by the signal transmitted on other transmission paths, and the channel quality of the first channel is higher. When the first channel does not belong to the first channel type, the first transmission path is not the transmission path with the strongest energy among the multiple transmission paths, that is, the signal transmitted on the first transmission path is more interfered by the signal transmitted on other transmission paths, and the channel quality of the first channel is lower. Therefore, the channel quality of the first channel may be determined by the channel type of the first channel. The first indication information may indicate the channel quality of the first channel by indicating whether the first channel belongs to the first channel type, so that the LMF can determine the channel quality of the first channel based on the first indication information.

[0011] In combination with the first aspect, in a possible implementation method, the first indication information indicates that the first channel belongs to or does not belong to a second channel type; when the first channel belongs to the second channel type, the arrival time difference between a first transmission path and a second transmission path in the first channel is less than a first threshold; the first transmission path is the first transmission path to arrive among multiple transmission paths of the first channel, and the second transmission path is a transmission path among the multiple transmission paths that is different from the first transmission path.

[0012] In the embodiment of the present application, when the first channel belongs to the second channel type, the signals transmitted on the second transmission path and the first transmission path interfere with each other greatly, and the channel quality of the first channel is poor. When the first channel does not belong to the second channel type, the signals transmitted on the second transmission path and the first transmission path interfere with each other greatly, and the channel quality of the first channel is high. Therefore, the first indication information can indicate the channel quality of the second channel by indicating whether the first channel belongs to the second channel type, so that the LMF can determine the channel quality of the first channel based on the first indication information.

[0013] In combination with the first aspect, in a possible implementation method, when the first channel belongs to the second channel type, there are samples with energy values ​​greater than a second threshold or there are peak points among the N samples before and after the first sample point of the power delay spectrum corresponding to the first signal; wherein, the first sample point is a sample point of the signal transmitted on the first transmission path.

[0014] In the embodiment of the present application, whether the first channel belongs to the second channel type can be quickly determined through the power delay spectrum corresponding to the first channel.

[0015] In combination with the first aspect, in a possible implementation manner, the first transmission path is the transmission path among the multiple transmission paths that arrives first and has an energy value greater than or equal to a third threshold.

[0016] In an embodiment of the present application, when the first communication device receives the first signal, the side lobes of the signals transmitted on other transmission paths may arrive before the first transmission path, or there is an interference signal in the first channel, so that the first communication device receives the signal before the first transmission path arrives. Therefore, the first communication device can determine the first transmission path that arrives and has an energy value greater than or equal to the third threshold as the first transmission path (i.e., the first path), and the signal with an energy value less than the third threshold received by the first communication device before receiving the signal transmitted on the first transmission path can be regarded as an interference signal, so that the signal on the first path of the first channel can be better identified and interference can be reduced.

[0017] In combination with the first aspect, in a possible implementation manner, the first indication information indicates the number of transmission paths of the first channel.

[0018] In the embodiment of the present application, when the number of transmission paths of the first channel is large, the mutual interference between the multiple transmission paths is large, and the channel quality of the first channel is poor. When the number of transmission paths of the first channel is small, the mutual interference between the multiple transmission paths is small, and the channel quality of the first channel is high. Therefore, the first indication information can indicate the channel quality of the first channel by indicating the number of transmission paths of the first channel, so that the LMF can determine the channel quality of the first channel based on the first indication information.

[0019] In combination with the first aspect, in a possible implementation method, determining the location information of the terminal device based on the first message includes: determining a first weight corresponding to the first measurement result based on the first indication information; and determining the location information of the terminal device based on the first weight and the first measurement result.

[0020] In the embodiment of the present application, the higher the channel quality of the first channel, the larger the first weight, and when the first communication device measures the first signal, the higher the accuracy of the first measurement result obtained, the larger the first weight corresponding to the first measurement result. It can be understood that LMF determines the weight of the corresponding measurement result based on the channel quality, so that when performing the positioning solution of the terminal device, the measurement result corresponding to the channel with poor channel quality has a lower impact on the positioning result, and the measurement result corresponding to the channel with higher channel quality has a higher impact on the positioning result, so that more accurate terminal device location information can be obtained, and the accuracy of the positioning result can be improved.

[0021] In combination with the first aspect, in a possible implementation manner, the first signal is transmitted by the first channel and the second channel, and the method further includes: receiving a second message, where the second message includes a second measurement result of the first signal transmitted on the second channel and second indication information, where the second indication information includes at least one of the following: a channel type of the second channel and a number of transmission paths of the second channel; and determining a second weight corresponding to the second measurement result based on the second indication information;

[0022] The determining the location information of the terminal device based on the first weight and the first measurement result includes: determining the location information of the terminal device based on the first weight, the second weight, the first measurement result, and the second measurement result.

[0023] In an embodiment of the present application, LMF can determine the location information of the terminal device based on multiple measurement results of the first signal, and can determine the weights of the corresponding measurement results based on the channel quality, so that the measurement results corresponding to the channels with poor channel quality have a lower impact on the positioning results, and the measurement results corresponding to the channels with higher channel quality have a higher impact on the positioning results, thereby obtaining more accurate location information of the terminal device and improving the accuracy of the positioning results.

[0024] In combination with the first aspect, in a possible implementation, when the first channel belongs to the first channel type and the second channel does not belong to the first channel type, the first weight is greater than the second weight; or, when the first channel belongs to the second channel type and the second channel does not belong to the second channel type, the first weight is less than the second weight; or, when the number of transmission paths of the first channel is greater than the number of transmission paths of the second channel, the first weight is less than the second weight.

[0025] In an embodiment of the present application, when the first channel belongs to the first channel type and the second channel does not belong to the first channel type, the channel quality of the first channel is greater than the channel quality of the second channel, and therefore the first weight is greater than the second weight, which can make the obtained location information of the terminal device more accurate and improve the accuracy of the positioning result. Alternatively, when the first channel belongs to the second channel type and the second channel does not belong to the second channel type, the channel quality of the first channel is less than the channel quality of the second channel, and therefore the first weight is less than the second weight, which can make the obtained location information of the terminal device more accurate and improve the accuracy of the positioning result. Alternatively, when the number of transmission paths of the first channel is greater than the number of transmission paths of the second channel, the channel quality of the first channel is less than the channel quality of the second channel, and therefore the first weight is less than the second weight, which can make the obtained location information of the terminal device more accurate and improve the accuracy of the positioning result.

[0026] In combination with the first aspect, in a possible implementation manner, determining the location information of the terminal device based on the first message includes:

[0027] When the first channel satisfies a first condition, the location information of the terminal device is determined based on the first measurement result; wherein the first condition includes at least one of the following: the first channel belongs to the first channel type, the first channel does not belong to the second channel type, and the number of transmission paths of the first channel is less than or equal to a fourth threshold.

[0028] In the embodiment of the present application, when the first channel satisfies the first condition, it indicates that the channel quality of the first channel is high, and accordingly, the quality of the first measurement result is high, so the LMF can use the first measurement result to perform positioning and solution, thereby obtaining the location information of the terminal device and ensuring the accuracy of the location information of the terminal device. When the first channel does not meet the first condition, it indicates that the channel quality of the first channel is poor, and accordingly, the quality of the first measurement result is poor, so the LMF may not use the first measurement result for positioning and solution.

[0029] In combination with the first aspect, in a possible implementation manner, the first measurement result includes at least one of the following: arrival time, receiving angle, and carrier phase of the first signal.

[0030] In a second aspect, an embodiment of the present application provides a communication method, which can be performed by a first communication device, where the first communication device can refer to the first communication device itself, or a processor, module, chip, or chip system that implements the method in the first communication device, without limitation. The method includes:

[0031] Receive a first signal, where the first signal is used to locate a terminal device; send a first message, where the first message includes a first measurement result and first indication information corresponding to the first signal, where the first indication information is used to indicate a channel quality of a first channel for transmitting the first signal.

[0032] In combination with the second aspect, in a possible implementation method, the first indication information indicates whether the first channel belongs to or does not belong to a first channel type; when the first channel belongs to the first channel type, the first transmission path in the first channel is the transmission path with the strongest energy among the multiple transmission paths of the first channel, and the first transmission path is the first transmission path to arrive among the multiple transmission paths.

[0033] In combination with the second aspect, in a possible implementation method, the first indication information indicates that the first channel belongs to or does not belong to a second channel type; when the first channel belongs to the second channel type, the arrival time difference between a first transmission path and a second transmission path in the first channel is less than a first threshold; the first transmission path is the first transmission path to arrive among multiple transmission paths of the first channel, and the second transmission path is a transmission path among the multiple transmission paths that is different from the first transmission path.

[0034] In combination with the second aspect, in a possible implementation method, when there are samples with energy values ​​greater than a second threshold within N sample points before and after the first sample point of the power delay spectrum corresponding to the first signal, the first channel belongs to the second channel type; or, when there is a peak point within N sample points before and after the first sample point of the power delay spectrum corresponding to the first signal, the first channel belongs to the second channel type; wherein the first sample point is a sample point of the signal transmitted on the first transmission path.

[0035] In combination with the second aspect, in a possible implementation manner, the first transmission path is the transmission path among the multiple transmission paths that arrives first and has an energy value greater than or equal to a third threshold.

[0036] In combination with the second aspect, in a possible implementation manner, the first indication information indicates the number of transmission paths of the first channel.

[0037] In combination with the second aspect, in a possible implementation manner, the first measurement result includes at least one of the following: arrival time, receiving angle, and carrier phase of the first signal.

[0038] In a third aspect, an embodiment of the present application provides a communication method, which can be executed by a first network element. The first network element here can refer to the first network element itself, or to a processor, module, chip, or chip system that implements the method in the first network element, without limitation. The method includes:

[0039] Receive a third message, the third message including a perception result of a first object and third indication information, the first object is located on a transmission path of a second signal, and the third indication information indicates a channel quality of a third channel for transmitting the second signal; determine the quality of the perception result based on the third indication information.

[0040] In the embodiment of the present application, the perception result is the result obtained by identifying or detecting the first object using the second signal, and the perception result may include one or more of the shape of the first object, the size of the first object, the position of the first object, and the moving speed of the first object. The recognition result can be understood as the final recognition result of the first object. The first network element can better determine the quality of the perception result of the first object through the channel quality of the third channel, that is, determine the reliability of the perception result of the first object, so as to facilitate the subsequent processing of the perception result. For example, when the channel quality of the third channel is high (the channel quality of the third channel is greater than the fifth threshold), the second signal is less interfered, so the first object is sensed using the second signal, and the reliability of the perception result is high, that is, the quality of the perception result is high. When the channel quality of the third channel is poor (such as the channel quality of the third channel is less than the fifth threshold), the second signal is more interfered, and the reliability of the perception result is low, that is, the quality of the perception result is poor.

[0041] Exemplarily, the first network element may determine the perception result as the recognition result of the first object when the channel quality of the third channel is greater than the fifth threshold, and the recognition result may be understood as the final recognition result of the first object. When the channel quality of the third channel is less than the fifth threshold, it indicates that the channel quality of the third channel is poor and the second signal is subject to greater interference. Therefore, the reliability of the perception result obtained by detecting the first object using the second signal is not high. The first network element may further identify the first object based on other auxiliary means, thereby ensuring the reliability of the recognition result of the first object.

[0042] In a fourth aspect, an embodiment of the present application provides a communication method, which can be performed by a first communication device, where the first communication device can refer to the first communication device itself, or a processor, module, chip, or chip system that implements the method in the first communication device, without limitation. The method includes:

[0043] Receive a second signal, where the second signal is used to detect a first object; send a third message, where the third message includes a perception result of the first object and third indication information, where the first object is located on a transmission path of the second signal, and the third indication information indicates a channel quality of a third channel for transmitting the second signal.

[0044] In combination with the third aspect or the fourth aspect, in a possible implementation method, the third indication information indicates that the third channel belongs to the first channel type, the first transmission path in the third channel is the transmission path with the strongest energy among the multiple transmission paths of the first channel, the first transmission path is the first transmission path to arrive among the multiple transmission paths, and the channel quality of the third channel is greater than the fifth threshold.

[0045] In an embodiment of the present application, the third indication information may indicate the channel quality of the third channel by indicating whether the third channel belongs to the first channel type. When the third indication information indicates that the third channel belongs to the first channel type, it indicates that the channel quality of the third channel is high, for example, the channel quality of the third channel is greater than the fifth threshold. When the third indication information indicates that the third channel belongs to the first channel type, the LMF determines the perception result as the recognition result of the first object, thereby ensuring the reliability of the recognition result of the first object.

[0046] In combination with the third aspect or the fourth aspect, in a possible implementation method, the third indication information indicates that the third channel belongs to the second channel type, the arrival time difference between the first transmission path and the second transmission path in the third channel is less than the first threshold, and the channel quality of the third channel is less than the fifth threshold; wherein the first transmission path is the first transmission path to arrive among the multiple transmission paths of the third channel, and the second transmission path is a transmission path among the multiple transmission paths that is different from the first transmission path.

[0047] In an embodiment of the present application, the third indication information may indicate the channel quality of the third channel by indicating whether the third channel belongs to the second channel type. When the third indication information indicates that the third channel belongs to the second channel type, it indicates that the channel quality of the third channel is poor, for example, the channel quality of the third channel is less than the fifth threshold. When the third indication information indicates that the third channel belongs to the second channel type, LMF may further identify the first object through auxiliary means, thereby ensuring the reliability of the recognition result of the first object. When the third indication information indicates that the third channel does not belong to the second channel type, LMF determines the perception result as the recognition result of the first object, thereby ensuring the reliability of the recognition result of the first object.

[0048] In combination with the third aspect or the fourth aspect, in a possible implementation, the third indication information includes the number of transmission paths of the third channel, and when the number of transmission paths of the third channel is less than a fourth threshold, the channel quality of the third channel is greater than the fifth threshold.

[0049] In an embodiment of the present application, the third indication information can indicate the channel quality of the third channel by indicating the number of transmission paths of the third channel. When the number of transmission paths of the third channel is less than the fourth threshold, the mutual interference between the signals transmitted on the multiple transmission paths of the third channel is small, so the channel quality of the third channel is high, for example, the channel quality of the third channel is greater than the fifth threshold. When the number of transmission paths of the third channel is less than the fourth threshold, LMF determines the perception result as the recognition result of the first object, which can ensure the reliability of the recognition result of the first object.

[0050] In a fifth aspect, an embodiment of the present application provides a communication device, which is used to execute the method in the first aspect or any possible implementation of the first aspect. The communication device includes a unit having the function of executing the method in the first aspect or any possible implementation of the first aspect.

[0051] In a sixth aspect, an embodiment of the present application provides a communication device, configured to execute the method in the second aspect or any possible implementation of the second aspect. The communication device includes a unit having the function of executing the method in the second aspect or any possible implementation of the second aspect.

[0052] In a seventh aspect, an embodiment of the present application provides a communication device, which is used to execute the method in the third aspect or any possible implementation of the third aspect. The communication device includes a unit having the function of executing the method in the third aspect or any possible implementation of the third aspect.

[0053] In an eighth aspect, an embodiment of the present application provides a communication device for executing the method in the fourth aspect or any possible implementation of the fourth aspect. The communication device includes a unit having the function of executing the method in the fourth aspect or any possible implementation of the fourth aspect.

[0054] In the fifth, sixth, seventh and eighth aspects, the above-mentioned communication device and communication device may include a transceiver unit and a processing unit. For the specific description of the transceiver unit and the processing unit, reference may also be made to the device embodiment shown below.

[0055] In a ninth aspect, an embodiment of the present application provides a communication device, the communication device comprising a processor, configured to execute the method described in any one of the first to fourth aspects or any possible implementation. Alternatively, the processor is configured to execute a program stored in a memory, and when the program is executed, the method described in any one of the first to fourth aspects or any possible implementation is executed.

[0056] In a possible implementation manner, the memory is located outside the above communication device.

[0057] In a possible implementation manner, the memory is located within the above-mentioned communication device.

[0058] In the embodiment of the present application, the processor and the memory may also be integrated into one device, that is, the processor and the memory may also be integrated together.

[0059] In a possible implementation manner, the communication device further includes a transceiver, where the transceiver is used to receive a signal or send a signal.

[0060] In the tenth aspect, an embodiment of the present application provides a communication device, which includes a logic circuit and an interface, wherein the logic circuit and the interface are coupled; the interface is used to input a first message; and the logic circuit is used to determine the location information of the terminal device based on the first measurement result and the first indication information.

[0061] It can be understood that with respect to the communication device shown in the tenth aspect, reference can also be made to the first aspect or the specific implementation shown below.

[0062] In an eleventh aspect, an embodiment of the present application provides a communication device, which includes a logic circuit and an interface, wherein the logic circuit and the interface are coupled; the interface is used to input a first signal and output a first message.

[0063] It can be understood that, with respect to the communication device shown in the eleventh aspect, reference can also be made to the second aspect or the specific implementation manner shown below.

[0064] In the twelfth aspect, an embodiment of the present application provides a communication device, which includes a logic circuit and an interface, wherein the logic circuit and the interface are coupled; the interface is used to input a third message; the logic circuit is used to determine the perception result as the recognition result of the first object when the channel quality of the third channel is greater than a fifth threshold.

[0065] It can be understood that with respect to the communication device shown in the twelfth aspect, reference can also be made to the third aspect or the specific implementation shown below.

[0066] In a thirteenth aspect, an embodiment of the present application provides a communication device, which includes a logic circuit and an interface, wherein the logic circuit and the interface are coupled; the interface is used to input a second signal and output a third message.

[0067] It can be understood that with respect to the communication device shown in the thirteenth aspect, reference can also be made to the fourth aspect or the specific implementation shown below.

[0068] In the fourteenth aspect, an embodiment of the present application provides a computer-readable storage medium, which is used to store a computer program. When the computer program is run on a computer, the method shown in any aspect of the first to fourth aspects or any possible implementation is executed.

[0069] In a fifteenth aspect, an embodiment of the present application provides a computer program product, which includes a computer program. When the computer program is run on a computer, the method shown in any aspect of the first to fourth aspects or any possible implementation is executed.

[0070] In the sixteenth aspect, an embodiment of the present application provides a computer program. When the computer program is run on a computer, the method shown in any aspect or any possible implementation of the above-mentioned first to fourth aspects is executed.

[0071] In the seventeenth aspect, an embodiment of the present application provides a communication system, which includes a first communication device and LMF, the LMF is used to execute the method shown in the above-mentioned first aspect or any possible implementation of the first aspect, and the first communication device is used to execute the method shown in the above-mentioned second aspect or any possible implementation of the second aspect.

[0072] In the eighteenth aspect, an embodiment of the present application provides a communication system, which includes a first network element and a first communication device, the first communication device is used to execute the method shown in the above-mentioned fourth aspect or any possible implementation of the fourth aspect, and the first network element is used to execute the method shown in the above-mentioned third aspect or any possible implementation of the third aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0073] The following is an introduction to the drawings related to the embodiments of the present application.

[0074] Figure 1A A schematic diagram of the architecture of a communication system provided in an embodiment of the present application;

[0075] Figure 1B A schematic diagram of the architecture of another communication system provided in an embodiment of the present application;

[0076] Figure 2 is a schematic diagram of a positioning architecture based on wireless communication provided in an embodiment of the present application;

[0077] Figure 3 It is a schematic diagram of a positioning architecture based on PC5 port provided in an embodiment of the present application;

[0078] Figure 4 It is a flowchart of a positioning method provided in an embodiment of the present application;

[0079] Figure 5 It is an interactive schematic diagram of a communication method provided in an embodiment of the present application;

[0080] Figure 6 is an interactive schematic diagram of another communication method provided in an embodiment of the present application;

[0081] Figure 7 is an interactive schematic diagram of another communication method provided in an embodiment of the present application;

[0082] Figure 8 is an interactive schematic diagram of another communication method provided in an embodiment of the present application;

[0083] Fig. 9 is an interactive schematic diagram of another communication method provided in an embodiment of the present application;

[0084] Fig.10 is a structural diagram of a communication device provided in an embodiment of the present application;

[0085] Fig.11 is a structural diagram of another communication device provided in an embodiment of the present application;

[0086] Fig.12 It is a structural diagram of another communication device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0087] The terms "first" and "second" in the specification, claims and drawings of the present application are only used to distinguish different objects, rather than to limit the order, timing, priority or importance of multiple objects. In the embodiment of the present application, "multiple" refers to two or more. In addition, the terms "including" and "having" and any variation thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally includes steps or units that are not listed, or optionally includes other steps or units inherent to these processes, methods, products or devices. In addition, the character " / ", unless otherwise specified, generally indicates that the objects associated before and after are in an "or" relationship.

[0088] The "embodiment" mentioned in this article means that the specific features, structures or characteristics described in conjunction with the embodiment can be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It can be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0089] It should be understood that in the present application, "at least one (item)" means one or more, "more than one" means two or more, "at least two (items)" means two or three and more than three, and "and / or" is used to describe the association relationship of associated objects, indicating that three relationships may exist. For example, "A and / or B" can mean: only A exists, only B exists, and A and B exist at the same time, where A and B can be singular or plural. The character " / " generally indicates that the previous and next associated objects are in an "or" relationship. "At least one of the following items" or similar expressions refers to any combination of these items, including any combination of single items or plural items. For example, at least one of a, b or c can mean: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", where a, b, c can be single or multiple.

[0090] The technical solution provided in the embodiments of the present application can be applied to various communication systems, for example, a satellite communication system, and a system integrating satellite communication and cellular network. Among them, the cellular network system may include but is not limited to: 5G system, global system of mobile communication (GSM) system, code division multiple access (CDMA) system, wideband code division multiple access (WCDMA) system, general packet radio service (GPRS), long term evolution (LTE) system, LTE frequency division duplex (FDD) system, LTE time division duplex (TDD) system, advanced long term evolution (LTE-A) system, new radio (NR) system, NR system evolution system, LTE on unlicensed band (LTE-based access to unlicensed spectrum, LTE-U) system, NR on unlicensed band (NR-based access to unlicensed spectrum, NR-U) system, universal mobile telecommunication system (UMTS), global interoperability for microwave access (worldwide interoperability for microwave The present invention relates to a mobile communication system, a wireless local area network (WLAN), a wireless fidelity (WiFi), a next generation communication system or other communication systems. Generally speaking, the number of connections supported by a traditional communication system is limited and easy to implement. However, with the development of communication technology, mobile communication systems will not only support traditional communications, but also support, for example, device to device (D2D) communication, machine to machine (M2M) communication, machine type communication (MTC), vehicle to vehicle (V2V) communication and other communication systems that will evolve in the future. The embodiments of the present application can also be applied to these communication systems.Satellite communication systems may include various non-terrestrial network systems, such as satellites or unmanned aircraft system (UAS) platforms, etc., which perform wireless frequency transmissions, and are not listed here one by one.

[0091] The technical solution provided in the present application can also be applied to machine type communication (MTC), long term evolution-machine (LTE-M), device-to-device (D2D) network, machine-to-machine (M2M) network, Internet of Things (IoT) network or other networks. Among them, the IoT network may include, for example, the Internet of Vehicles. Among them, the communication methods in the Internet of Vehicles system are collectively referred to as vehicle-to-everything (V2X, X can represent anything). For example, the V2X may include: vehicle-to-vehicle (V2V) communication, vehicle-to-infrastructure (V2I) communication, vehicle-to-pedestrian (V2P) communication or vehicle-to-network (V2N) communication, etc. Exemplarily, the following is shown Figure 1A or Figure 1B or Figure 2 In this process, terminal devices can communicate with each other through D2D technology, M2M technology or V2X technology.

[0092] like Figure 1A or Figure 1B As shown, the communication system provided by the embodiment of the present application may include at least one access network device and at least one terminal device.

[0093] The introductions to access network equipment and terminal equipment are as follows:

[0094] Exemplarily, the access network device may be a next generation node B (gNB), a next generation evolved node B (ng-eNB), or an access network device in future 6G communication. The access network device may be any device with wireless transceiver functions, including but not limited to the base stations shown above. The base station may also be a base station in a future communication system such as a sixth generation communication system. Optionally, the access network device may be an access node, a wireless relay node, a wireless backhaul node, etc. in a wireless local area network (WiFi) system. Optionally, the access network device may be a wireless controller in a cloud radio access network (CRAN) scenario. Optionally, the access network device may be a wearable device or a vehicle-mounted device, etc. Optionally, the access network device may also be a small station, a transmission reception point (TRP) (or may also be referred to as a transmission point), a transmission measurement function (TMF), etc. It is understandable that the access network device may also be a base station in a future evolved public land mobile network (PLMN), etc.

[0095] In some deployments, a base station (such as a gNB) may be composed of a centralized unit (CU) and a distributed unit (DU). That is, the functions of the base station in the access network are split, and some functions of the base station are deployed in a CU, and the remaining functions are deployed in the DU. And multiple DUs share one CU, which can save costs and facilitate network expansion. In other deployments of base stations, the CU can also be divided into CU-control plane (CP) and CU-user plane (UP), etc. In some other deployments of base stations, the base station can also be an open radio access network (ORAN) architecture, etc. This application does not limit the specific type of base station.

[0096] For ease of description, the method involved in this application will be introduced below by taking the access network device as a base station as an example.

[0097] Exemplarily, the terminal device may also be referred to as user equipment (UE), terminal, etc. The terminal device is a device with wireless transceiver function, which can be deployed on land, including indoors or outdoors, handheld, wearable or vehicle-mounted; it can also be deployed on the water surface, such as on a ship; it can also be deployed in the air, for example, on an airplane, a balloon or a satellite. The terminal device can be a mobile phone, a tablet computer (Pad), a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal in industrial control, a wireless terminal in self driving, a wireless terminal in remote medical, a wireless terminal in smart grid, a wireless terminal in transportation safety, a wireless terminal in smart city, a wireless terminal in smart home, customer-premises equipment (CPE), etc. It is understandable that the terminal device may also be a terminal device in a future 6G network or a terminal device in a future evolved PLMN, etc.

[0098] It can be understood that the terminal device shown in this application can not only include vehicles in the Internet of Vehicles (such as complete vehicles), but also include vehicle-mounted devices or vehicle-mounted terminals in the Internet of Vehicles. This application does not limit the specific form of the terminal device when applied to the Internet of Vehicles.

[0099] For ease of description, the method involved in this application will be introduced below using the terminal device as UE as an example.

[0100] Figure 1A The communication system shown in FIG. 1 includes a base station and multiple UEs, such as Figure 1A UE1 and UE2 in the communication system. In the communication system, the base station can send downlink signals such as configuration information or downlink control information (DCI) to UE1 and UE2, and UE1 and UE2 can send uplink signals such as SRS or physical uplink shared channel (PUSCH) to the base station. It can be understood that for the communication method between UEs, reference can be made to the above description, which will not be described in detail here.

[0101] Figure 1B The communication system shown in FIG. 1 includes a UE and multiple base stations, such as Figure 1B Base station 1, base station 2 and base station 3 in the communication system. In the communication system, base station 1, base station 2 and base station 3 can transmit data and control signaling for UE at the same time.

[0102] The above-mentioned communication equipment, such as Figure 1A or Figure 1B The base station and UE in the communication system may be configured with multiple antennas. The multiple antennas may include at least one transmitting antenna for sending signals and at least one receiving antenna for receiving signals, etc. The embodiment of the present application does not limit the specific structure of each communication device. Optionally, the communication system may also include other network entities such as a network controller and a mobility management entity, but the embodiment of the present application is not limited thereto.

[0103] It is understandable that the method provided in this application can be applied not only to Figure 1A or Figure 1B The communication system shown can also be applied to Figure 2 The communication system shown.

[0104] See also Figure 2 , Figure 2 A schematic diagram of a positioning architecture based on wireless communication provided in an embodiment of the present application. Figure 2 As shown, the positioning architecture mainly includes: a radio access network (RAN) (such as Figure 2 The next generation RAN (NG-RAN) is used as an example. The wireless access network, UE and core network are described as follows:

[0105] Exemplarily, the core network includes a location management function (LMF), an access and mobility management function (AMF), a service location protocol (SLP), and an evolved serving mobile location centre (E-SMLC).

[0106] Exemplarily, LMF is a device or component deployed in the core network to provide positioning functions for UE, responsible for supporting different types of location services related to UE, including positioning of UE and transmission of auxiliary data to UE. For example, LMF interacts with the base station through the new radio (NR) positioning protocol annex (NR positioning protocol annex, NRPPa) message to obtain positioning reference signals (PRS), sounding reference signals (SRS) configuration information, cell timing, cell location information, etc. For another example, LMF and UE transmit UE capability information, auxiliary information, measurement information, etc. through the long term evolution (LTE) positioning protocol (LTE positioning protocol, LPP) message.

[0107] Exemplarily, AMF is an access and mobility management function for UE deployed in the core network that meets the 5G standard and performs registration, connection, reachability, and mobility management. It provides a session management message transmission channel for the UE and the session management function (SMF), provides authentication and authorization functions for user access, and the terminal and the wireless core network control plane access point. The AMF can receive location service requests related to the UE from the fifth generation core network location services (5GC LCS) entity; alternatively, the AMF itself can also start some location services on behalf of the UE and send the location service request to the LMF. After the AMF obtains the UE's location information, it returns the UE's location information to the 5GC LCS entity.

[0108] Exemplarily, the RAN includes base stations such as Figure 2 As shown, the gNB and ng-eNB can be connected through the Xn interface (or Xn-C interface), the LMF and ng-eNB / gNB can be connected through the NG-C interface, and the UE and gNB can be connected through the NR-Uu interface, and the UE and ng-eNB can be connected through the LTE-Uu interface. It can be understood that this application is for Figure 2 The interfaces shown are not limited, and the description of each interface may refer to relevant standards or protocols.

[0109] It should be understood that the above Figure 2It is only an exemplary description of the communication system to which the embodiments of the present application are applicable, and does not specifically limit the type, quantity, connection mode, etc. of the network elements included in the communication system to which the present application is applicable. For example, E-SMLC or SLP is not indispensable; for example, ng-eNB includes multiple transmission points (TPs) in some embodiments, gNB includes multiple transmission reception points (TRPs) in some embodiments, and the terminal device is called a SUPL enabled terminal (SET) in some embodiments or includes SET in some embodiments, and SUPL is a secure user plane location (secure user plane location).

[0110] See also Figure 3 , Figure 3 A schematic diagram of a positioning architecture based on PC5 port provided in an embodiment of the present application. Figure 3 As shown, the positioning architecture includes: LMF, AMF, RAN, and at least one UE. UEs can be connected to each other through PC5 ports. UEs can include a UE location management component (UE location management component, UE-LMC), and mutual assistance positioning between UEs is achieved through UE-LMC.

[0111] The various embodiments shown below can be applied to Figure 1A and Figure 1B The communication system shown can also be applied to Figure 2 and Figure 3 The communication system shown in the figure will not be described in detail below.

[0112] Figure 1A or Figure 1B or Figure 2 or Figure 3In the communication system shown, multiple positioning technologies such as downlink time difference of arrival (DL-TDOA), downlink angle of departure (DL-AOD), uplink time difference of arrival (UL-TDOA), uplink angle of arrival (UL-AOA), and multi-round trip time (multi-RTT) are supported. Among them, DL-TDOA, UL-TDOA and multi-RTT positioning technologies are positioning technologies based on the arrival time of a reference signal (such as PRS or SRS). When positioning a terminal device based on these positioning technologies, the receiving end measures the arrival time of the reference signal sent by the transmitting end. The receiving end or LMF can determine the distance information between the receiving end and the transmitting end based on the arrival time of the reference channel, thereby obtaining the location information of the terminal device. DL-AOD and UL-AOA positioning technologies are positioning technologies based on the angle of the reference signal (i.e., the receiving direction angle). When positioning the terminal device based on these, the receiving end measures the arrival angle of the reference signal sent by the transmitting end. The receiving end or LMF can determine the location information of the receiving end based on the angle information between the receiving end and multiple transmitting ends with known positions.

[0113] Figure 4 A flow chart of a positioning method provided in an embodiment of the present application. Figure 4 As shown, the method comprises the following steps:

[0114] 401, LMF sends a positioning request message to a first network device, and correspondingly, the first network device receives the positioning request message. The first network device is a serving base station of a terminal device, and the positioning request message is used to request configuration information of an SRS.

[0115] 402, the first network device sends a positioning response message, and correspondingly, the LMF receives the positioning response message. The positioning response message includes configuration information of the SRS.

[0116] Exemplarily, after receiving the positioning response message, the LMF may send SRS configuration information to other network devices (such as the second network device) so that the other network devices can measure the SRS sent by the terminal device.

[0117] 403. The first network device sends SRS configuration information, and correspondingly, the UE receives the SRS configuration information.

[0118] 404. The LMF sends a measurement request to the first network device and the second network device to request the first network device and the second network device to measure the SRS sent by the terminal device.

[0119] 405, the terminal device sends an SRS, and the first network device and the second network device receive and measure the SRS. For example, the first network device and the second network device may measure the arrival time, arrival angle, etc. of the SRS.

[0120] 406. The first network device and the second network device send the SRS measurement results to the LMF. Correspondingly, the LMF receives the measurement results from the first network device and the second network device.

[0121] 407, LMF determines the location information of the terminal device based on the measurement result of the SRS.

[0122] Exemplarily, the LMF may determine the location information of the terminal device based on the arrival time of the SRS measured by multiple network devices.

[0123] For example, LMF can determine the location information of the terminal device based on the arrival time of the SRS measured by three base stations, and the locations of the three base stations are known. For example, the coordinates of the i-th base station are (x i ,y i ), the coordinates of the terminal device are (x UE ,y UE ), and take one base station as the reference base station, assuming that the arrival time of the SRS measured by the two base stations is t i , then the arrival time difference between any base station and the reference base station is Δt i1 According to the definition of a hyperbola (the distance from two fixed points is a constant), the terminal device is located on the hyperbola with two base stations as foci, and the coordinates of the terminal device can be determined by the following formula:

[0124]

[0125]

[0126] Where c is the signal transmission speed (i.e. the speed of light).

[0127] In such Figure 4 In the positioning method shown, to achieve high-precision positioning, the receiving end (such as the first network device and the second network device) needs to measure the accuracy of the measurement result, that is, it is necessary to measure the accurate arrival time (or reference signal transmission delay), arrival angle or carrier phase, etc. However, for a channel with multipath interference, the measurement result error will be large, resulting in low positioning accuracy.

[0128] In view of this, an embodiment of the present application provides a communication method that can reduce the power consumption of a terminal device.

[0129] It can be understood that the interaction diagram in this application uses the network device and the terminal device as the execution subject of the interaction diagram as an example to illustrate the method, but this application does not limit the execution subject of the interaction diagram. For example, the network device in the interaction diagram can also be a chip, a chip system, or a processor that supports the network device to implement the method, or a logical node, a logical module, or software that can implement all or part of the network device functions; the terminal device in the interaction diagram can also be a chip, a chip system, or a processor that supports the terminal to implement the method.

[0130] In the embodiments of the present application, "sending information to...(terminal)" can be understood as the destination end of the information being the terminal, and can include directly or indirectly sending information to the terminal. "Receiving information from...(terminal)" can be understood as the source end of the information being the terminal, and can include directly or indirectly receiving information from the terminal. The information may be processed as necessary between the source end and the destination end of the information transmission. For example, at the source end of the information transmission, one or more of the following processes, including encoding, modulation, power matching, and resource mapping, can be performed on the information. For another example, at the destination end of receiving the information, one or more of the following processes, including resource de-mapping, demodulation, and decoding, can be performed on the information. Similar expressions in the present application can be understood similarly and will not be repeated here.

[0131] See also Figure 5 , Figure 5 The interactive diagram of a communication method provided in an embodiment of the present application is shown in FIG. Figure 1A , Figure 1B , Figure 2 as well as Figure 3 The communication system shown in the figure, or the method is applied to the LMF and the first communication device, the first communication device can be the terminal device or the network device described above. Figure 5 As shown, the method includes but is not limited to the following steps.

[0132] 501, the second communication device sends a first signal, and correspondingly, the first communication device receives the first signal. The first signal is used to locate the terminal device.

[0133] Exemplarily, the first signal may include an SRS or a PRS. After receiving the first signal, the first communication device measures the first signal to obtain a first measurement result. For example, the first measurement result includes at least one of the following: the arrival time of the first signal, the transmission delay of the first signal from the second communication device to the first communication device, the reception angle of the first signal, and the carrier phase of the first signal, that is, the first communication device can measure the arrival time of the first signal, the transmission delay of the first signal from the second communication device to the first communication device, the reception angle of the first signal, the carrier phase of the first signal, etc.

[0134] As an example, the first communication device may be a terminal device, the second communication device may be a network device or a terminal device, and the first signal may be a PRS. In this example, the terminal device may receive multiple reference signals (such as PRS) from multiple network devices or terminal devices, and measure the multiple reference signals to obtain measurement results corresponding to the multiple reference signals.

[0135] As another example, the first communication device is a network device, the second communication device is a terminal device, and the first signal may be an SRS. In this example, the first signal sent by the terminal device may be received by multiple network devices, and after receiving the first signal, the multiple network devices measure the first signal.

[0136] 502, a first communication device sends a first message, and correspondingly, the LMF receives the first message. The first message includes a first measurement result corresponding to a first signal and first indication information, and the first indication information indicates a channel quality of a first channel for transmitting the first signal.

[0137] Exemplarily, the channel quality of the first channel may be determined by the channel type of the first channel and / or the number of transmission paths of the first channel. The channel type of the first channel may include a first channel type and / or a second channel type.

[0138] In a possible implementation, the first communication device or LMF can determine the channel quality of the first channel based on whether the first channel belongs to the first channel type. In the case where the first channel belongs to the first channel type, the first transmission path is the transmission path with the strongest energy among the multiple transmission paths of the first channel. Among them, the first transmission path is the first transmission path to arrive among the multiple transmission paths of the first channel, that is, the signal transmitted on the first transmission path is first received by the first communication device, and the first transmission path can also be called the first path. The first channel type can also be called a strong direct path channel type. In the case where the first channel belongs to the first channel type, the signal transmitted on the first transmission path is less interfered by the signal transmitted on other transmission paths, and the channel quality of the first channel is higher, for example, the channel quality of the first channel is greater than the fifth threshold. In the case where the first channel does not belong to the first channel type, the first transmission path is not the transmission path with the strongest energy among the multiple transmission paths, that is, the signal transmitted on the first transmission path is more interfered by the signal transmitted on other transmission paths, and the channel quality of the first channel is lower, for example, the channel quality of the first channel is less than the fifth threshold. Therefore, the first communication device or LMF can determine the channel quality of the first channel based on whether the first channel belongs to the first channel type.

[0139] As an example, the first communication device may determine the channel quality of the first channel based on whether the first channel belongs to the first channel type, and then indicate the channel quality of the first channel through first indication information.

[0140] As another example, after the first communication device determines whether the first channel belongs to the first channel type, it indicates whether the first channel belongs to the first channel type or not through the first indication information, and the LMF determines the channel quality of the first channel based on the first indication information. That is, the first indication information can indicate the channel quality of the first channel by indicating whether the first channel belongs to the first channel type.

[0141] Exemplarily, the first transmission path is the first transmission path among the multiple transmission paths of the first channel that arrives and has an energy value greater than or equal to the third threshold. When the first communication device receives the first signal, the side lobes of the signals transmitted on other transmission paths may arrive before the first transmission path, or there is an interference signal in the first channel, so that the first communication device receives the signal before the first transmission path arrives. Therefore, the first communication device can determine the first transmission path that arrives and has an energy value greater than or equal to the third threshold as the first transmission path (i.e., the first path), and the signal with an energy value less than the third threshold received by the first communication device before receiving the signal transmitted on the first transmission path can be regarded as an interference signal, so that the signal on the first path of the first channel can be better identified and interference can be reduced.

[0142] Exemplarily, the third threshold may be determined by the energy value of the strongest path. For example, the third threshold may be X1 dB lower than the energy value of the strongest path. Wherein, X1 is any positive number, and X1 may be determined by actual business, and this application does not impose any limitation.

[0143] It can be understood that in the embodiment of the present application, the channel quality of the first channel can be represented by different numerical values, and a larger numerical value indicates a higher channel quality of the first channel.

[0144] In another possible implementation, the first communication device or LMF can determine the channel quality of the first channel based on whether the first channel belongs to the second channel type. In the case where the first channel belongs to the second channel type, the arrival time difference between the first transmission path and the second transmission path is less than the first threshold. Among them, the second transmission path is a transmission path different from the first transmission path among the multiple transmission paths of the first channel. The arrival time difference between the first transmission path and the second transmission path is less than the first threshold, and the mutual interference between the signals transmitted on the second transmission path and the first transmission path is large. In this case, the channel quality of the first channel is poor. In the case where the first channel does not belong to the second channel type, the arrival time difference between the first transmission path and the second transmission path is greater than the first threshold, and the mutual interference between the signals transmitted on the second transmission path and the first transmission path is small, and the channel quality of the first channel is high. Therefore, the first communication device or LMF can determine the channel quality of the first channel based on whether the first channel belongs to the second channel type. The second channel type can also be called a dense multipath channel type.

[0145] Exemplarily, when the first channel belongs to the second channel type, there are sample points with energy values ​​greater than the second threshold or peak points in the N sample points before and after the first sample point of the power delay spectrum corresponding to the first signal. Among them, the first sample point is a sample point of the signal transmitted on the first transmission path. For example, the first communication device can determine whether the first channel belongs to the first channel type based on the rate of decrease of energy of any transmission path (such as the first transmission path) among multiple transmission paths. The first communication device receives the first signal and obtains the power delay spectrum corresponding to the first signal, and determines whether there are sample points with energy values ​​greater than the second threshold within the N sample points around the first sample point on the power delay spectrum. If there are sample points with energy values ​​greater than the second threshold in the N sample points before and after the first sample point, it is determined that the first channel belongs to the second channel type. If there are no sample points with energy values ​​greater than the second threshold in the N sample points before and after the first sample point, it is determined that the first channel does not belong to the second channel type. For another example, the first communication device can determine whether the first channel belongs to the second channel type based on whether there is a peak point in the N sample points around the first sample point. When there is a peak point within the N sample points around the first sample point, the first channel belongs to the second channel type. When there is no peak point within the N sample points around the first sample point, the first channel does not belong to the second channel type.

[0146] As an example, the first communication device may determine the channel quality of the first channel based on whether the first channel belongs to the second channel type, and then indicate the channel quality of the first channel through first indication information.

[0147] As another example, after the first communication device determines whether the first channel belongs to the second channel type, it indicates whether the first channel belongs to the second channel type or not through the first indication information, and the LMF determines the channel quality of the first channel based on the first indication information. That is, the first indication information can indicate the channel quality of the first channel by indicating whether the first channel belongs to the second channel type.

[0148] In another possible implementation, when the number of transmission paths of the first channel is large, the mutual interference between the multiple transmission paths is large, and the channel quality of the first channel is poor. When the number of transmission paths of the first channel is small, the mutual interference between the multiple transmission paths is small, and the channel quality of the first channel is high. Therefore, the first communication device or LMF can also determine the channel quality of the first channel based on the number of transmission paths of the first channel. Exemplarily, the number of transmission paths includes the number of transmission paths whose energy values ​​are greater than a sixth threshold, and the sixth threshold can be determined by the energy of the strongest path. For example, the sixth threshold is X2 dB lower than the energy of the strongest path. Wherein, X2 is an arbitrary positive number, and X2 can be determined by actual business, and this application does not impose any restrictions.

[0149] As an example, the first communication device may determine the channel quality of the first channel based on whether the first channel belongs to the second channel type, and then indicate the channel quality of the first channel through first indication information.

[0150] As another example, after the first communication device determines whether the first channel belongs to the second channel type, it indicates whether the first channel belongs to the second channel type or not through the first indication information, and the LMF determines the channel quality of the first channel based on the first indication information. That is, the first indication information can indicate the channel quality of the first channel by indicating whether the first channel belongs to the second channel type.

[0151] It can be understood that the above-mentioned several implementations can be combined with each other. For example, the first communication device or LMF can determine the channel quality of the first channel based on one or more of whether the first channel belongs to the first channel type, whether the first channel belongs to the second channel type, and the number of transmission paths of the first channel. The first indication information includes one or more of the channel quality of the first channel, the indication of whether the first channel belongs to the first channel type, the indication of whether the first channel belongs to the second channel type, and the number of transmission paths of the first channel.

[0152] It is understandable that in the embodiment of the present application, energy can also be replaced by received power. For example, the first transmission path has the largest received power among multiple transmission paths.

[0153] 503. LMF determines the location information of the terminal device based on the first measurement result and the first indication information.

[0154] Exemplarily, the first communication device is a terminal device, and the first message includes multiple measurement results of reference signals from multiple network devices, and LMF can determine the location information of the terminal device based on the multiple measurement results. For another example, the first communication device is a network device, and LMF also receives multiple measurement results of the first signal from other network devices, and determines the location information of the terminal device based on the multiple measurement results of the first signal. Exemplarily, LMF can use any positioning technology of DL-TDOA, DL-AOD, UL-TDOA, UL-AOA, and multi-RTT to determine the location information of the terminal device. For example, the first measurement result includes the arrival time of the first signal, and LMF can use DL-TDOA, UL-TDOA or multi-RTT positioning technology to determine the location information of the terminal device. For another example, the first measurement result includes the receiving angle of the first signal, and LMF can use DL-AOD or UL-AOA positioning technology to determine the location information of the terminal device. For another example, the first measurement result includes the carrier phase of the first signal, and LMF can use the carrier phase positioning method to determine the location information of the terminal device.

[0155] In a possible implementation, the LMF may determine a first weight corresponding to the first measurement result together with the first indication information, and determine the location information of the terminal device based on the first weight and the first measurement result. For example, the higher the channel quality of the first channel, the greater the first weight.

[0156] Exemplarily, the first signal may be transmitted by multiple channels, which may be channels between the terminal device and multiple network devices, and the LMF may determine the location information of the terminal device based on the measurement results of the first signal on the multiple channels. For example, the first signal is transmitted by the first channel and the second channel, and the LMF also receives a second message, the second message includes the second measurement result of the first signal transmitted on the second channel and second indication information, and the second indication information includes at least one of the following: the channel type of the second channel, the number of transmission paths of the second channel; the LMF determines the second weight corresponding to the second measurement result based on the second indication information, and determines the location information of the terminal device based on the first weight, the second weight, the first measurement result, and the second measurement result.

[0157] The second indication information may indicate the channel quality of the second channel by the channel type of the second channel and the number of transmission paths of the second channel. For example, the second indication information indicates at least one of the following: whether the second channel belongs to the first channel type or not, whether the second channel belongs to the second channel type or not, and the number of transmission paths of the second channel. The LMF may determine the channel quality of the second channel based on the second indication information, and determine the second weight based on the channel quality of the second channel.

[0158] Exemplarily, when the first channel belongs to the first channel type and the second channel does not belong to the first channel type, the first weight is greater than the second weight; or, when the first channel belongs to the second channel type and the second channel does not belong to the second channel type, the first weight is less than the second weight; or, when the number of transmission paths of the first channel is greater than the number of transmission paths of the second channel, the first weight is less than the second weight.

[0159] In the case where the first channel belongs to the first channel type and the second channel does not belong to the first channel type, the channel quality of the first channel is greater than the channel quality of the second channel, so the first weight is greater than the second weight, which can make the obtained location information of the terminal device more accurate and improve the accuracy of the positioning result. In the case where the first channel belongs to the second channel type and the second channel does not belong to the second channel type, the channel quality of the first channel is less than the channel quality of the second channel, so the first weight is less than the second weight, which can make the obtained location information of the terminal device more accurate and improve the accuracy of the positioning result. In the case where the number of transmission paths of the first channel is greater than the number of transmission paths of the second channel, the channel quality of the first channel is less than the channel quality of the second channel, so the first weight is less than the second weight, which can make the obtained location information of the terminal device more accurate and improve the accuracy of the positioning result.

[0160] Exemplarily, when the first channel belongs to the first channel type and the second channel type, and the second channel does not belong to the first channel type and does not belong to the second channel type, the channel quality of the first channel is greater than the channel quality of the second channel, and the first weight is greater than the second weight. Alternatively, when the first channel does not belong to the first channel type and does not belong to the second channel type, and the second channel belongs to the first channel type and belongs to the second channel type, the channel quality of the first channel is greater than the channel quality of the second channel, and the first weight is greater than the second weight.

[0161] In this implementation method, the weights of the corresponding measurement results can be determined based on the channel quality, so that when the LMF performs positioning solution based on the measurement results, the measurement results corresponding to the channels with poor channel quality have a lower impact on the positioning results, and the measurement results corresponding to the channels with higher channel quality have a higher impact on the positioning results, thereby obtaining more accurate terminal device location information and improving the accuracy of the positioning results.

[0162] In another possible implementation, when the first channel satisfies a first condition, the location information of the terminal device is determined based on the first measurement result. The first condition includes at least one of the following: the first channel belongs to a first channel type, the first channel does not belong to a second channel type, and the number of transmission paths of the first channel is less than or equal to a fourth threshold.

[0163] Exemplarily, when the first channel satisfies the first condition, it indicates that the channel quality of the first channel is high, and accordingly, the quality of the first measurement result is high, so the LMF can use the first measurement result to perform positioning and solution, thereby obtaining the location information of the terminal device and ensuring the accuracy of the location information of the terminal device. When the first channel does not meet the first condition, it indicates that the channel quality of the first channel is poor, and accordingly, the quality of the first measurement result is poor, so the LMF may not use the first measurement result to perform positioning and solution.

[0164] Exemplarily, the LMF may obtain multiple measurement results corresponding to the first signal in multiple channels, and determine the location information of the terminal device based on the measurement results corresponding to the channels that meet the first condition in the multiple measurement results. That is, the LMF determines the location information of the terminal device based on the measurement results corresponding to the channels with high channel quality among the multiple channels, thereby ensuring the accuracy of the obtained location information of the terminal device.

[0165] In another possible implementation, when the first channel belongs to the first channel type and does not belong to the second channel type, the LMF determines the location information of the terminal device based on the carrier phase of the first signal. When the first channel belongs to the first channel type, the LMF can determine the location information of the terminal device based on the arrival time of the first signal. In this implementation, the LMF can select a positioning solution method that matches the channel type based on the channel type of the first channel, so that the obtained location information of the terminal device is highly accurate, providing the accuracy of the positioning result.

[0166] Exemplarily, the carrier phase of the first signal includes the carrier phase of the signal on the first transmission path. When the first channel belongs to the first channel type and does not belong to the second channel type, the signal on the first transmission path is less interfered by other transmission paths, and the carrier phase of the signal on the first transmission path measured by the first communication device has high reliability. Therefore, positioning solution can be performed based on the carrier phase of the first transmission path, so that the obtained location information of the terminal device has high accuracy, thereby improving the accuracy of the positioning result.

[0167] The arrival time of the first signal includes the arrival time of the signal on the first transmission path. When the first channel belongs to the first channel type, the reliability of the arrival time of the signal on the first transmission path measured by the first communication device is high. Therefore, positioning can be solved based on the carrier phase of the first transmission path, so that the location information of the terminal device obtained is highly accurate, thereby improving the accuracy of the positioning result.

[0168] In an embodiment of the present application, the first measurement result is obtained by measuring the first signal by the first communication device, and the channel quality of the first channel can affect the first measurement result. For example, when the channel quality of the first channel is high, the first communication device measures the first signal, and the precision of the first measurement result obtained is high, and the precision of the location information of the terminal device obtained by positioning and solving based on the first measurement result is high. Therefore, LMF can determine the quality of the first measurement result based on the channel quality of the first channel, so that the terminal device can be located in combination with the first measurement result and its quality, so as to improve the precision of the location information of the terminal device obtained.

[0169] See also Figure 6 , Figure 6 The interactive diagram of another communication method provided by an embodiment of the present application. The method is applied to a terminal device, a first network device, a second network device and an LMF. The terminal device may be the second communication device shown above, the first network device may be the first communication device shown above, and the LMF may be the LMF shown above. Figure 6 As shown, the method includes but is not limited to the following steps.

[0170] 601. LMF sends a first request message to a first network device. Correspondingly, the first network device receives the first request message, and the first request message requests the first network device to configure SRS for the terminal device.

[0171] Exemplarily, the first network device is a serving base station of the terminal device, providing access service for the terminal device. The first request message may include an NRPPa message.

[0172] 602. The first network device sends SRS configuration information. Correspondingly, the terminal device receives the SRS configuration information, where the SRS configuration information includes uplink SRS resources.

[0173] Exemplarily, the first network device determines an available uplink SRS resource, and sends the uplink SRS resource to the terminal device through the SRS configuration information, so that the terminal device can send the SRS based on the uplink SRS resource.

[0174] 603, the first network device sends a first response message, and correspondingly, the LMF receives the first response message. The first response message includes SRS configuration information.

[0175] Exemplarily, the first response message includes an NRPPa message.

[0176] 604, LMF sends a second request message, and correspondingly, the first network device and the second network device receive the second request message, where the second request message includes SRS configuration information, which is used to request the first network device and the second network device to measure the SRS sent by the terminal device.

[0177] Exemplarily, the second network device is a network device that participates in the positioning of the terminal device, for example, the second network device may be a neighboring base station of the first network device. It is understandable that in the embodiment of the present application, there may be multiple network devices that participate in the positioning of the terminal device, and the embodiment of the present application only takes the first network device and the second network device as examples.

[0178] 605. The terminal device sends an SRS, and correspondingly, the first network device and the second network device receive the SRS.

[0179] Exemplarily, the first network device and the second network device respectively receive and measure the SRS sent by the terminal device to obtain corresponding measurement results. For example, the SRS is transmitted by the first channel and the second channel, the first channel is the channel between the terminal device and the first network device, and the second channel is the channel between the terminal device and the second network device. The first network device receives and measures the SRS through the first channel, and obtains a first measurement result corresponding to the SRS on the first channel. The second network device receives and measures the SRS through the second channel, and obtains a second measurement result corresponding to the SRS on the second channel.

[0180] It is understandable that for the specific description of the SRS, reference may be made to the above description of the first signal, and for the specific implementation of step 605, reference may be made to Figure 5 The specific implementation method of step 501 will not be described in detail here.

[0181] 606, the first network device sends a first message, and correspondingly, the LMF receives the first message. The first message includes a first measurement result corresponding to the SRS and first indication information, and the first indication information indicates a channel quality of the first channel.

[0182] It is understandable that the specific description of the first message, the first measurement result, and the first indication information can be referred to Figure 5 The relevant description in step 502 in .

[0183] 607. The second network device sends a second message. Accordingly, the LMF receives the second message. The second message includes a second measurement result corresponding to the SRS and second indication information. The second indication information indicates the channel quality of the second channel.

[0184] It is understandable that the specific description of the second message, the second measurement result, and the second indication information can be referred to Figure 5 The relevant instructions in step 503 are not described in detail here.

[0185] 608, LMF determines the location information of the terminal device based on the first measurement result, the first indication information, the second measurement result and the second indication information.

[0186] Exemplarily, LMF can determine the first weight corresponding to the first measurement result based on the first indication information, determine the second weight corresponding to the second measurement result based on the second indication information, LMF determines the second weight corresponding to the second measurement result based on the second indication information, and determines the location information of the terminal device based on the first weight, the second weight, the first measurement result and the second measurement result.

[0187] Exemplarily, the SRS sent by the terminal device can be received by multiple network devices, which receive and measure the SRS through corresponding channels, and report the measurement results and channel types corresponding to the channels to the LMF. After receiving the multiple measurement results, the LMF can select the measurement results corresponding to the channels that meet the conditions based on the channel types of the channels reported by the multiple network devices for transmitting the SRS for positioning and solution to obtain the location information of the terminal device. For example, the LMF can select the measurement results corresponding to the channels that belong to the first channel type and do not belong to the second channel type for carrier phase positioning and solution to obtain the location information of the terminal device. For another example, the LMF can select the measurement results corresponding to the channels that belong to the first channel type for TDOA positioning and solution to obtain the location information of the terminal device.

[0188] It is understood that the specific implementation of step 608 can be referred to Figure 5 The specific implementation method of step 503 will not be described in detail here.

[0189] In an embodiment of the present application, multiple network devices involved in positioning receive and measure the SRS sent by the terminal device, and report the measurement results corresponding to the SRS and the channel quality of the channel transmitting the SRS to the LMF, so that the LMF can determine the location information of the terminal device based on the multiple measurement results and the channel quality of the corresponding channels, thereby improving the accuracy of the location information of the terminal device obtained.

[0190] See also Figure 7 , Figure 7The interactive diagram of another communication method provided by an embodiment of the present application. The method is applied to a terminal device, a first network device, a second network device and an LMF. The terminal device may be the first communication device shown above, the first network device may be the second communication device shown above, and the LMF may be the LMF shown above. Figure 7 As shown, the method includes but is not limited to the following steps.

[0191] 701, LMF obtains the capabilities of the terminal device.

[0192] Exemplarily, the LMF may obtain the capability of the terminal device to receive signals, for example, the LMF determines the signal period supported by the terminal device, or the time and frequency resources available to the terminal device, etc. The LMF may obtain the terminal device capability through an LPP capability transfer process.

[0193] 702, LMF sends a third request message, and correspondingly, the first network device and the second network device receive the third request message. The third request message is used to request information of the first network device or the second network device. For example, the third request message requests at least one of the following: cell information, location information (such as coordinates), ID, and PRS configuration information of the first network device or the second network device.

[0194] Exemplarily, the first network device may be a service base station of the terminal device, that is, the first network device provides access services for the terminal device. The second network device is a network device participating in the positioning of the terminal device, for example, the second network device may be a neighboring base station of the first network device.

[0195] 703, the first network device or the second network device sends a third response message, and accordingly, the LMF receives the third response message. The third response message includes information of the first network device or the second network device. For example, the third response message includes at least one of the following: cell information, location information (such as coordinates), ID, and PRS configuration information of the first network device or the second network device.

[0196] 704, the LMF sends a fourth message to the terminal device, and correspondingly, the terminal device receives the fourth message. The fourth message is used to provide positioning assistance information. For example, the fourth message includes PRS configuration information, location information of the first network device or the second network device, etc.

[0197] 705. LMF sends a positioning request message. Correspondingly, the terminal device receives the positioning request message. The positioning request message requests the terminal device and the PRU to measure the PRS.

[0198] Exemplarily, the terminal device may include a positioning reference unit (PRU).

[0199] 706. The first network device and the second network device send a PRS, and correspondingly, the terminal device or the PRU receives the PRS.

[0200] Exemplarily, the terminal device may receive PRSs sent by multiple network devices through multiple channels, and measure the PRSs sent on each channel respectively and obtain channel information (such as channel quality, channel type, number of transmission paths, etc.).

[0201] 707. The terminal device sends a first message, and correspondingly, the LMF receives the first message, where the first message includes a first measurement result of the PRS on the first channel and first indication information, where the first indication information is used to indicate the channel quality of the first channel.

[0202] Exemplarily, the first channel may be a channel between the terminal device and the first network device, the network device sends the PRS through the first channel, and the terminal device receives the PRS through the first channel.

[0203] It is understandable that the specific description of the first message, the first indication information, and the first measurement result can be referred to Figure 5 The relevant description in step 502 will not be described in detail here.

[0204] Exemplarily, the terminal device may receive PRSs sent by multiple network devices through multiple channels, and measure the PRSs sent on each channel respectively. The first message includes measurement results corresponding to the multiple channels, and the first indication information is used to indicate the channel quality of the multiple channels, and the multiple channels transmit PRSs. The terminal device may receive and measure PRSs from multiple network devices through multiple channels, thereby obtaining multiple measurement results, and report the measurement results corresponding to the multiple channels and the channel quality or channel type respectively through the first message.

[0205] 708. LMF determines the location information of the terminal device based on the first measurement result and the first indication information.

[0206] It is understood that the specific implementation of step 708 can be referred to Figure 5 The specific implementation method of step 503 is not described in detail here.

[0207] In an embodiment of the present application, the terminal device receives PRSs from multiple network devices through multiple channels and measures the PRSs on each channel. The terminal device may indicate the channel quality of each channel through multiple measurement results corresponding to each channel and the first indication information, so that the LMF can perform positioning and solution of the terminal device based on the channel quality of each channel and the multiple measurement results, thereby improving the accuracy of the obtained location information of the terminal device.

[0208] See also Figure 8 , Figure 8 An interactive diagram of another communication method provided in an embodiment of the present application. The method can be applied to a first communication device and a first network element, the first communication device can be the first communication device shown above (such as a terminal device or a network device), the first network element can be the LMF or the sensing management function (SMF) shown above, or the first network element can be a functional module in the core network (such as a sensing module). Figure 8 As shown, the method includes but is not limited to the following steps.

[0209] 801. The second communication device sends a second signal, and correspondingly, the first communication device receives the second signal.

[0210] Exemplarily, the second signal may include at least one of the following: SRS, PRS, channel state information-reference signal (CSI-RS), synchronization signal block (SSB), demodulation reference signal (DMRS). The second signal is transmitted on a third channel, and the second signal is used to detect objects on its transmission path. After receiving the second signal, the first communication device can measure the second signal, and based on the measurement result, sense and identify the first object on the transmission path of the second signal, thereby obtaining a perception result of the first object. The perception result may include at least one of the following: the position of the first object, the shape of the first object, the size of the first object, and the moving speed.

[0211] In some possible implementations, the second signal may also be sent by the first communication device. For example, after the first communication device sends the second signal, the second signal is reflected by the first object and then received by the first communication device. In this case, the first communication device may also sense and identify the first object based on the second signal.

[0212] It can be understood that the above-mentioned first communication device can be a network device or a terminal device, and the second communication device can be a network device or a terminal device, and this application does not impose any limitation.

[0213] 802, the first communication device sends a third message, and accordingly, the first network element receives the third message, the third message includes the perception result of the first object and third indication information, the first object is located on the transmission path of the second signal, and the third indication information indicates the channel quality of the third channel for transmitting the second signal.

[0214] Exemplarily, the channel quality of the third channel may be indicated by the channel type and / or the number of transmission paths of the third channel. For example, the third indication information may indicate at least one of the following: whether the third channel belongs to the first channel type, whether the third channel belongs to the second channel type, and the number of transmission paths of the third channel.

[0215] It is understood that the specific description of the third indication information can be referred to Figure 5 The specific description of the first indication information in step 502 is not repeated here.

[0216] 803. The first network element determines the quality of the perception result based on the third indication information.

[0217] Exemplarily, the first network element may determine a quantized value of the perception result based on the third indication information, and a higher quantized value indicates a better quality of the perception result. The first network element may determine the channel quality of the third channel based on the third indication information, and determine the quality of the perception result through the channel quality of the third channel. In the case where the quality of the perception result is high, the first network element may determine the perception result as the recognition result of the first object. For example, in the case where the channel quality of the third signal is greater than the fifth threshold, the first network element may determine that the reliability of the perception result is high, and therefore determine the perception result as the recognition result of the first object. The first network element or the first communication device may perform a corresponding operation based on the recognition result of the first object. For example, in the case where the first communication device is a vehicle, the first communication device may determine whether it is necessary to avoid the first object based on the recognition result of the first object.

[0218] In the case where the quality of the perception result is poor, the first network element may identify the first object based on other auxiliary means. For example, in the case where the channel quality of the third channel is less than the fifth threshold, the quality of the perception result is poor, and the first network element may re-identify the first object through auxiliary means to determine the identification result of the first object. For example, in the case where the distance between the first object and the first communication device is less than the seventh threshold, the first network element sends an instruction to the first communication device to enable the first communication device to turn on a camera or sensor, and further identify the first object through the camera or sensor of the first communication device.

[0219] Exemplarily, the third indication information includes a channel type of the third channel, and the first network element may determine the quality of the perception result according to the channel type of the third channel, thereby determining whether to determine the perception result as the recognition result of the first object.

[0220] For example, the third indication information indicates whether the third channel belongs to or does not belong to the first channel type. In the case where the third indication information indicates that the third channel belongs to the first channel type, the first transmission path in the third channel is the transmission path with the strongest energy among the multiple transmission paths of the first channel, and the first transmission path is the first transmission path to arrive among the multiple transmission paths. In this case, the signal transmitted by the first transmission path is less interfered with, so the channel quality of the third channel is higher. For example, the channel quality of the third channel is greater than the fifth threshold, the quality of the perception result of the first object is high, and the first network element confirms the perception result as the recognition result of the first object. In the case where the third channel does not belong to the first channel type, the quality of the perception result is not high, and the first network element needs to further identify the first object through other auxiliary means.

[0221] For another example, the third indication information indicates whether the third channel belongs to or does not belong to the second channel type. In the case where the third channel belongs to the second channel type, the arrival time difference between the first transmission path and the second transmission path in the third channel is less than the first threshold, the signal on the first transmission path is greatly interfered by the signal on the second transmission path, and the channel quality of the third channel is poor, for example, the channel quality of the third channel is less than the fifth threshold. Among them, the first transmission path is the first transmission path to arrive among multiple transmission paths of the third channel, and the second transmission path is a transmission path among multiple transmission paths that is different from the first transmission path. In this case, the quality of the perception result is not high, and the first network element needs to further identify the first object through other auxiliary means; in the case where the third channel does not belong to the second channel type, the quality of the perception result is high, and the first network element confirms the perception result as the identification result of the first object.

[0222] For another example, the third indication information includes the number of transmission paths of the third channel. When the number of transmission paths of the third channel is less than the fourth threshold, the channel quality of the third channel is greater than the fifth threshold. In this case, the quality of the perception result is high, and the first network element confirms the perception result as the recognition result of the first object.

[0223] In an embodiment of the present application, the first network element can better determine the quality of the perception result of the first object through the channel quality of the third channel, that is, determine the reliability of the perception result of the first object, so as to facilitate the subsequent processing of the perception result. For example, when the channel quality of the third channel is greater than the fifth threshold, it indicates that the channel quality of the third channel is high and the second signal is less interfered with. Therefore, the reliability of the perception result obtained by detecting the first object using the second signal is high, and the first network element can determine the perception result as the recognition result of the first object, thereby ensuring the reliability of the recognition result of the first object. When the channel quality of the third channel is less than the fifth threshold, it indicates that the channel quality of the third channel is poor and the second signal is more interfered with. Therefore, the reliability of the perception result obtained by detecting the first object using the second signal is not high. The first network element can further identify the first object based on other auxiliary means, thereby ensuring the reliability of the recognition result of the first object.

[0224] See also Fig. 9 , Fig. 9 An interactive diagram of another communication method provided in an embodiment of the present application. The method can be applied to a terminal device, a first network device and a first network element. The first network device can be the first communication device shown above, the first network element can be the LMF or SMF shown above, or the first network element can be a functional module in the core network (such as a sensing module). Fig. 9 As shown, the method includes but is not limited to the following steps.

[0225] In one possible implementation, Fig. 9 The method shown includes steps 901 to 904 .

[0226] 901. A first network element sends a first request message to a first network device. Correspondingly, the first network device receives the first request message. The first request message requests the first network device to configure an SRS for a terminal device.

[0227] 902. The first network device sends SRS configuration information. Correspondingly, the terminal device receives the SRS configuration information, where the SRS configuration information includes uplink SRS resources.

[0228] 903, the first network device sends a first response message, and correspondingly, the first network element receives the first response message. The first response message includes SRS configuration information.

[0229] 904, the first network element sends a second request message, and correspondingly, the first network device and the second network device receive the second request message, where the second request message includes SRS configuration information for requesting the first network device and the second network device to measure the SRS sent by the terminal device.

[0230] It can be understood that the specific implementation of steps 901 to 904 can refer to the specific implementation of steps 601 to 604, which will not be described in detail here.

[0231] 905, the terminal device sends an SRS, and correspondingly, the first network device and the second network device receive the SRS.

[0232] Exemplarily, the first network device and the second network device respectively receive and measure the SRS sent by the terminal device to obtain corresponding measurement results, and perceive and identify the first object on the transmission path of the SRS based on the measurement results, thereby obtaining the perception result of the first object. The perception result may include at least one of the following: the position of the first object, the shape of the first object, the size of the first object, and the moving speed.

[0233] 906. The first network device sends a third message. Accordingly, the first network element receives the third message. The third message includes the perception result of the first object and third indication information. The third indication information indicates the channel quality of the third channel for transmitting the SRS.

[0234] Exemplarily, the second network device may also sense an object on the SRS transmission path based on the received SRS, and report the sensed result of the object and the channel quality of the corresponding channel to the first network element. For example, the SRS is transmitted by the fourth channel between the terminal device and the second network device, the second network device receives the SRS, and senses the second object on the SRS transmission path. The second network device sends a fifth message to the first network element, and the fifth message includes the sensed result of the second object and the channel quality of the fourth channel. The second network device may indicate the channel quality of the fourth channel by reporting the channel type of the fourth channel or the number of transmission paths of the fourth channel.

[0235] 907. The first network element determines the quality of the perception result based on the third indication information.

[0236] Exemplarily, the first network element may determine the perception result as the recognition result of the first object when the channel quality of the third channel is greater than a fifth threshold.

[0237] It is understandable that the specific implementation of step 906 and step 907 can also be referred to Figure 8 The specific implementation of step 802 and step 803 will not be described in detail here.

[0238] In an embodiment of the present application, the first network device can perceive the first object based on SRS, obtain the perception result of the first object and the channel quality of the third channel for transmitting SRS, and report the perception result and the channel quality of the third channel to the first network element. The first network element can determine the reliability of the perception result of the first object through the channel quality of the third channel. When the channel quality of the third channel is greater than the fifth threshold, it indicates that the channel quality of the third channel is high and the second signal is less interfered with. Therefore, the second signal is used to detect the first object, and the perception result obtained has high reliability. The first network element can determine the perception result as the recognition result of the first object, thereby ensuring the reliability of the recognition result of the first object.

[0239] The device provided in the embodiments of the present application is introduced below.

[0240] The present application divides the functional modules of the communication device according to the above method embodiment. For example, each functional module can be divided according to each function, or two or more functions can be integrated into one processing module. The above integrated modules can be implemented in the form of hardware or software functional modules. It should be noted that the division of modules in the present application is schematic and is only a logical function division. There may be other division methods in actual implementation. Figures 10 to 12 The communication device according to the embodiment of the present application is described in detail.

[0241] Fig.10 is a schematic diagram of the structure of a communication device provided in an embodiment of the present application, such as Fig.10 As shown, the communication device includes a processing unit 1001 and a transceiver unit 1002. The transceiver unit 1002 can implement corresponding communication functions, and the processing unit 1001 is used for data processing. For example, the transceiver unit 1002 can also be called a communication interface or a communication unit.

[0242] In some embodiments of the present application, the communication device can be used to execute the actions performed by the LMF in the above method embodiments. In this case, the communication device can be the LMF or a component that can be configured in the LMF (such as a chip or system, etc.), the transceiver unit 1002 is used to execute the LMF transceiver related operations in the above method embodiments, and the processing unit 1001 is used to execute the LMF processing related operations in the above method embodiments.

[0243] Exemplarily, the transceiver unit 1002 is used to receive a first message; the processing unit 1001 is used to determine the location information of the terminal device based on the first measurement result and the first indication information.

[0244] Optionally, the processing unit 1001 is specifically configured to determine a first weight corresponding to a first measurement result based on the first indication information, and determine location information of the terminal device based on the first weight and the first measurement result.

[0245] Optionally, the transceiver unit 1002 is further used to receive a second message; the processing unit 1001 is used to determine a second weight corresponding to the second measurement result based on the second indication information.

[0246] It can be understood that the specific description of the first message, the first measurement result, the first signal, the first indication information, the first weight, the second message, the second indication information, the second weight, etc. can refer to the method embodiment shown above and will not be described in detail here.

[0247] In other embodiments of the present application, the communication device can be used to execute the actions performed by the first communication device in the above method embodiment. In this case, the communication device can be the first communication device or a component that can be configured in the first communication device, such as a chip or a system, etc.), the transceiver unit 1002 is used to execute the transceiver related operations of the first communication device in the above method embodiment, and the processing unit 1001 is used to execute the processing related operations of the first communication device in the above method embodiment.

[0248] Exemplarily, the transceiver unit 1002 is configured to receive a first signal and send a first message.

[0249] It can be understood that specific descriptions of the first message, the first measurement result, the first signal, the first indication information, etc. can be referred to the method embodiment shown above, and will not be described in detail here.

[0250] In some other embodiments of the present application, the communication device can be used to execute the actions performed by the first network element in the above method embodiment. In this case, the communication device can be the first network element or a component that can be configured in the first network element, such as a chip or a system, etc.), the transceiver unit 1002 is used to execute the transceiver-related operations of the first network element in the above method embodiment, and the processing unit 1001 is used to execute the first network element processing-related operations in the above method embodiment.

[0251] Exemplarily, the transceiver unit 1002 is used to receive a third message; the processing unit 1001 is used to determine the perception result as the recognition result of the first object when the channel quality of the third channel is greater than a fifth threshold.

[0252] It can be understood that specific instructions on the third message, perception result, third indication information, identification result, channel quality of the third channel, etc. can be referred to the method embodiment shown above, and will not be described in detail here.

[0253] In some other embodiments of the present application, the communication device can be used to execute the actions performed by the first communication device in the above method embodiment. In this case, the communication device can be the first communication device or a component that can be configured in the first communication device (such as a chip or a system, etc.), and the transceiver unit 1002 is used to execute the transceiver related operations of the first communication device in the above method embodiment, and the processing unit 1001 is used to execute the processing related operations of the first communication device in the above method embodiment.

[0254] Exemplarily, the transceiver unit 1002 is configured to receive a second signal and send a third message.

[0255] It can be understood that specific instructions on the third message, perception result, third indication information, identification result, channel quality of the third channel, etc. can be referred to the method embodiment shown above, and will not be described in detail here.

[0256] Optionally, the above-mentioned communication device may further include a storage unit, which may be used to store instructions and / or data, and the processing unit 1001 may read the instructions and / or data in the storage unit so that the communication device implements the above-mentioned method embodiment.

[0257] It can be understood that the specific description of the transceiver unit and the processing unit shown in the embodiment of the present application is only an example. For the specific functions or execution steps of the transceiver unit and the processing unit, reference can be made to the above-mentioned method embodiment, which will not be described in detail here.

[0258] The above describes the communication device of the embodiment of the present application, and the following describes possible product forms of the communication device. Fig.10 Any form of product with the functions of the communication device described above falls within the protection scope of the embodiments of the present application. It should also be understood that the following description is only an example and does not limit the product form of the communication device of the embodiments of the present application to this.

[0259] In one possible implementation, Fig.10In the communication device shown, the processing unit 1001 may be one or more processors, the transceiver unit 1002 may be a transceiver, or the transceiver unit 1002 may also be a sending unit and a receiving unit, the sending unit may be a transmitter, the receiving unit may be a receiver, and the sending unit and the receiving unit are integrated into one device, such as a transceiver. In the embodiment of the present application, the processor and the transceiver may be coupled, etc., and the embodiment of the present application does not limit the connection mode of the processor and the transceiver. In the process of executing the above method, the process of sending information in the above method can be understood as the process of outputting the above information by the processor. When outputting the above information, the processor outputs the above information to the transceiver so that it is transmitted by the transceiver. After the above information is output by the processor, it may also need to be processed in other ways before it reaches the transceiver. Similarly, the process of receiving information in the above method can be understood as the process of the processor receiving the input information. When the processor receives the input information, the transceiver receives the above information and inputs it into the processor. Furthermore, after the transceiver receives the above information, the above information may need to be processed in other ways before it is received by the processor.

[0260] like Fig.11 As shown, the communication device 110 includes one or more processors 1120 and a transceiver 1110 .

[0261] In some embodiments of the present application, the communication device can be used to execute the steps or functions performed by the LMF in the above method embodiments.

[0262] Exemplarily, the transceiver 1110 is used to receive a first message; the processor 1120 is used to determine the location information of the terminal device based on the first measurement result and the first indication information.

[0263] In some other embodiments of the present application, the communication device may be used to execute the steps or functions performed by the first communication device in the above method embodiments.

[0264] Exemplarily, the transceiver 1110 is configured to receive a first signal and send a first message.

[0265] In some other embodiments of the present application, the communication device can be used to execute the steps or functions performed by the first network element in the above method embodiments.

[0266] Exemplarily, the transceiver 1110 is configured to receive a third message; and the processor 1120 is configured to determine the perception result as the recognition result of the first object when the channel quality of the third channel is greater than a fifth threshold.

[0267] In some other embodiments of the present application, the communication device may be used to execute the steps or functions performed by the first communication device in the above method embodiments.

[0268] Exemplarily, the transceiver 1110 is configured to receive a second signal and send a third message.

[0269] It can be understood that the specific description of the transceiver and the processor shown in the embodiments of the present application is only an example. For the specific functions or execution steps of the transceiver and the processor, reference can be made to the above-mentioned method embodiments, which will not be described in detail here.

[0270] In the above embodiments, the description of the first measurement result, the first signal, the first indication information, the second message, the second indication information, the second signal, the third message, the perception result, the identification result, etc. can also be referred to the introduction in the above method embodiment, and will not be described in detail here.

[0271] exist Fig.11 In various implementations of the communication device shown, the transceiver may include a receiver and a transmitter, wherein the receiver is used to perform a receiving function (or operation) and the transmitter is used to perform a transmitting function (or operation). The transceiver is used to communicate with other devices / devices through a transmission medium.

[0272] Optionally, the communication device 110 may also include one or more memories 1130 for storing program instructions and / or data, etc. The memory 1130 is coupled to the processor 1120. The coupling in the embodiment of the present application is an indirect coupling or communication connection between devices, units or modules, which may be electrical, mechanical or other forms, and is used for information exchange between devices, units or modules. The processor 1120 may operate in conjunction with the memory 1130. The processor 1120 may execute program instructions stored in the memory 1130. Optionally, at least one of the one or more memories may be included in the processor.

[0273] The specific connection medium between the transceiver 1110, the processor 1120 and the memory 1130 is not limited in the embodiment of the present application. Fig.11 The memory 1130, the processor 1120 and the transceiver 1110 are connected via a bus 1140. Fig.11 The connections between the other components are shown in bold lines, which are only for illustration and are not intended to be limiting. The bus can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Fig.11 Only one thick line is used in the diagram, but this does not mean that there is only one bus or only one type of bus.

[0274] In the embodiments of the present application, the processor may be a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, etc., and may implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of the present application. The general-purpose processor may be a microprocessor or any conventional processor, etc. The steps of the method disclosed in the embodiments of the present application may be directly embodied as being executed by a hardware processor, or may be executed by a combination of hardware and software modules in the processor, etc.

[0275] In the embodiment of the present application, the memory may include, but is not limited to, non-volatile memory such as a hard disk drive (HDD) or a solid-state drive (SSD), a random access memory (RAM), an erasable programmable read-only memory (EPROM), a read-only memory (ROM) or a portable read-only memory (CD-ROM), etc. The memory is any storage medium that can be used to carry or store program codes in the form of instructions or data structures and can be read and / or written by a computer (such as a communication device shown in the present application), but is not limited thereto. The memory in the embodiment of the present application can also be a circuit or any other device that can realize a storage function, for storing program instructions and / or data.

[0276] Exemplarily, the processor 1120 is mainly used to process the communication protocol and communication data, and to control the entire communication device, execute the software program, and process the data of the software program. The memory 1130 is mainly used to store the software program and data. The transceiver 1110 may include a control circuit and an antenna. The control circuit is mainly used to convert the baseband signal and the radio frequency signal and to process the radio frequency signal. The antenna is mainly used to transmit and receive radio frequency signals in the form of electromagnetic waves. The input and output devices, such as a touch screen, a display screen, a keyboard, etc., are mainly used to receive data input by the user and output data to the user.

[0277] When the communication device is turned on, the processor 1120 can read the software program in the memory 1130, interpret and execute the instructions of the software program, and process the data of the software program. When data needs to be sent wirelessly, the processor 1120 performs baseband processing on the data to be sent, and outputs the baseband signal to the RF circuit. The RF circuit performs RF processing on the baseband signal and then sends the RF signal outward in the form of electromagnetic waves through the antenna. When data is sent to the communication device, the RF circuit receives the RF signal through the antenna, converts the RF signal into a baseband signal, and outputs the baseband signal to the processor 1120. The processor 1120 converts the baseband signal into data and processes the data.

[0278] In another implementation, the RF circuit and antenna may be arranged independently of the processor performing baseband processing. For example, in a distributed scenario, the RF circuit and antenna may be arranged remotely from the communication device.

[0279] It is understandable that the communication device shown in the embodiment of the present application may also have Fig.11 The embodiments of the present application do not limit the number of components and the like. The methods executed by the processor and the transceiver shown above are only examples, and the specific steps executed by the processor and the transceiver can refer to the methods described above.

[0280] In another possible implementation, Fig.10 In the communication device shown, the processing unit 1001 may be one or more logic circuits, and the transceiver unit 1002 may be an input / output interface, or a communication interface, or an interface circuit, or an interface, etc. Alternatively, the transceiver unit 1002 may be a sending unit and a receiving unit, the sending unit may be an output interface, the receiving unit may be an input interface, and the sending unit and the receiving unit may be integrated into one unit, such as an input / output interface. Fig.12 As shown, Fig.12 The communication device shown includes a logic circuit 1201 and an interface 1202. That is, the processing unit 1001 can be implemented by the logic circuit 1201, and the transceiver unit 1002 can be implemented by the interface 1202. The logic circuit 1201 can be a chip, a processing circuit, an integrated circuit or a system on chip (SoC) chip, etc., and the interface 1202 can be a communication interface, an input / output interface, a pin, etc. For example, Fig.12 The above communication device is taken as an example as a chip, and the chip includes a logic circuit 1201 and an interface 1202 .

[0281] In the embodiment of the present application, the logic circuit and the interface may also be coupled to each other. The embodiment of the present application does not limit the specific connection method between the logic circuit and the interface.

[0282] In some embodiments of the present application, the communication device can be used to execute the steps or functions performed by the LMF in the above method embodiments, etc. Exemplarily, the interface 1202 is used to input a first message; the logic circuit 1201 is used to determine the location information of the terminal device based on the first measurement result and the first indication information.

[0283] In some other embodiments of the present application, the communication device may be used to execute the steps or functions executed by the first communication device in the above method embodiment. Exemplarily, the interface 1202 is used to input a first signal and output a first message.

[0284] In some other embodiments of the present application, the communication device can be used to execute the steps or functions performed by the first network element in the above method embodiment. Exemplarily, the interface 1202 is used to input the third message; the logic circuit 1201 is used to determine the perception result as the recognition result of the first object when the channel quality of the third channel is greater than the fifth threshold.

[0285] In some other embodiments of the present application, the communication device may be used to execute the steps or functions executed by the first communication device in the above method embodiment. Exemplarily, the interface 1202 is used to input the second signal and output the third message.

[0286] It can be understood that the specific description of the logic circuit and interface shown in the embodiments of the present application is only an example. For the specific functions or execution steps of the logic circuit and interface, etc., reference can be made to the above-mentioned method embodiments and will not be described in detail here.

[0287] In the above embodiments, the description of the first measurement result, the first signal, the first indication information, the second message, the second indication information, the second signal, the third message, the perception result, the identification result, etc. can also be referred to the introduction in the above method embodiment, and will not be described in detail here.

[0288] It can be understood that the communication device shown in the embodiment of the present application can implement the method provided in the embodiment of the present application in the form of hardware, or can implement the method provided in the embodiment of the present application in the form of software, etc., and the embodiment of the present application is not limited to this.

[0289] The present application also provides a communication system, which includes a first communication device and a LMF, and the first communication device and the LMF are used to execute the method in any of the above embodiments. For example, the first communication device is used to execute the steps or functions executed by the terminal device or the network device in the above method embodiment.

[0290] The embodiment of the present application also provides a communication system, which includes a first communication device and a first network element, and the first communication device and the first network element are used to execute the method in any of the above embodiments. For example, the first communication device is used to execute the steps or functions performed by the terminal device or the network device in the above method embodiment.

[0291] In addition, the present application also provides a computer program, which is used to implement the operations and / or processing performed by the LMF in the method provided by the present application.

[0292] The present application also provides a computer program, which is used to implement the operations and / or processing performed by the first communication device in the method provided by the present application.

[0293] The present application also provides a computer program, which is used to implement the operations and / or processing performed by the first network element in the method provided by the present application.

[0294] The present application also provides a computer-readable storage medium, in which computer codes are stored. When the computer codes are executed on a computer, the computer executes the operations and / or processes performed by the LMF in the method provided in the present application.

[0295] The present application also provides a computer-readable storage medium, in which computer codes are stored. When the computer codes are executed on a computer, the computer executes the operations and / or processes performed by the first communication device in the method provided in the present application.

[0296] The present application also provides a computer-readable storage medium, in which computer code is stored. When the computer code is executed on a computer, the computer executes the operations and / or processing performed by the first network element in the method provided in the present application.

[0297] The present application also provides a computer program product, which includes a computer code or a computer program. When the computer code or the computer program runs on a computer, the operations and / or processing performed by the LMF in the method provided by the present application are executed.

[0298] The present application also provides a computer program product, which includes a computer code or a computer program. When the computer code or the computer program runs on a computer, the operations and / or processing performed by the first communication device in the method provided by the present application are executed.

[0299] The present application also provides a computer program product, which includes a computer code or a computer program. When the computer code or the computer program runs on a computer, the operations and / or processing performed by the first network element in the method provided by the present application are executed.

[0300] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interfaces, devices or units, or it can be an electrical, mechanical or other form of connection.

[0301] The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the technical effects of the solutions provided in the embodiments of the present application.

[0302] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0303] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or partly contributed to the prior art, or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a readable storage medium, including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present application. The aforementioned readable storage medium includes: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), disk or optical disk and other media that can store program code.

[0304] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A communication method, characterized in that: The method is applied to the location management service LMF, comprising: receiving a first message, where the first message includes a first measurement result and first indication information corresponding to a first signal, where the first indication information indicates a channel quality of a first channel for transmitting the first signal, and the first signal is used to locate a terminal device; Determine the location information of the terminal device based on the first measurement result and the first indication information.

2. The method according to claim 1, characterized in that The first indication information indicates that the first channel belongs to or does not belong to a first channel type; when the first channel belongs to the first channel type, the first transmission path in the first channel is the transmission path with the strongest energy among multiple transmission paths of the first channel, and the first transmission path is the first transmission path to arrive among the multiple transmission paths.

3. The method according to claim 1 or 2, characterized in that: The first indication information indicates that the first channel belongs to or does not belong to a second channel type; when the first channel belongs to the second channel type, the arrival time difference between a first transmission path and a second transmission path in the first channel is less than a first threshold; the first transmission path is the first transmission path to arrive among multiple transmission paths of the first channel, and the second transmission path is a transmission path among the multiple transmission paths that is different from the first transmission path.

4. The method according to claim 3, characterized in that When the first channel belongs to the second channel type, there are samples with energy values ​​greater than a second threshold or peak points between the N samples before and after the first sample of the power delay spectrum corresponding to the first signal; wherein the first sample is a sample of the signal transmitted on the first transmission path.

5. The method according to any one of claims 2 to 4, characterized in that: The first transmission path is a transmission path that arrives first among the multiple transmission paths and whose energy value is greater than or equal to a third threshold.

6. The method according to any one of claims 1 to 5, characterized in that: The first indication information indicates the number of transmission paths of the first channel.

7. The method according to any one of claims 1 to 6, characterized in that: The determining the location information of the terminal device based on the first measurement result and the first indication information includes: determining a first weight corresponding to the first measurement result based on the first indication information; The location information of the terminal device is determined based on the first weight and the first measurement result.

8. The method according to claim 7, characterized in that The first signal is transmitted by the first channel and the second channel, and the method further includes: receiving a second message, where the second message includes a second measurement result of the first signal transmitted on the second channel and second indication information, where the second indication information includes at least one of the following: a channel type of the second channel and a number of transmission paths of the second channel; determining a second weight corresponding to the second measurement result based on the second indication information; The determining the location information of the terminal device based on the first weight and the first measurement result includes: The location information of the terminal device is determined based on the first weight, the second weight, the first measurement result, and the second measurement result.

9. The method according to claim 8, characterized in that In the case where the first channel belongs to the first channel type and the second channel does not belong to the first channel type, the first weight is greater than the second weight; or, In the case where the first channel belongs to the second channel type and the second channel does not belong to the second channel type, the first weight is less than the second weight; or, In a case where the number of transmission paths of the first channel is greater than the number of transmission paths of the second channel, the first weight is smaller than the second weight.

10. The method according to any one of claims 2 to 6, characterized in that: The determining the location information of the terminal device based on the first message includes: When the first channel satisfies a first condition, the location information of the terminal device is determined based on the first measurement result; wherein the first condition includes at least one of the following: the first channel belongs to the first channel type, the first channel does not belong to the second channel type, and the number of transmission paths of the first channel is less than or equal to a fourth threshold.

11. The method according to any one of claims 1 to 10, characterized in that: The first measurement result includes at least one of the following: arrival time, receiving angle, and carrier phase of the first signal.

12. A communication method, characterized in that: The method is applied to a first communication device, comprising: receiving a first signal, where the first signal is used to locate a terminal device; A first message is sent, where the first message includes a first measurement result corresponding to a first signal and first indication information, where the first indication information is used to indicate a channel quality of a first channel for transmitting the first signal.

13. The method according to claim 12, characterized in that The first indication information indicates that the first channel belongs to or does not belong to a first channel type; when the first channel belongs to the first channel type, the first transmission path in the first channel is the transmission path with the strongest energy among multiple transmission paths of the first channel, and the first transmission path is the first transmission path to arrive among the multiple transmission paths.

14. The method according to claim 12 or 13, characterized in that The first indication information indicates that the first channel belongs to or does not belong to a second channel type; when the first channel belongs to the second channel type, the arrival time difference between a first transmission path and a second transmission path in the first channel is less than a first threshold; the first transmission path is the first transmission path to arrive among multiple transmission paths of the first channel, and the second transmission path is a transmission path among the multiple transmission paths that is different from the first transmission path.

15. The method according to claim 14, characterized in that In the case where there are samples whose energy values ​​are greater than a second threshold value between the N samples before and after the first sample of the power delay spectrum corresponding to the first signal, the first channel belongs to the second channel type; or, When there is a peak point between N sample points before and after a first sample point of the power delay spectrum corresponding to the first signal, the first channel belongs to the second channel type; The first sample point is a sample point of a signal transmitted on the first transmission path.

16. The method according to any one of claims 13-14, characterized in that: The first transmission path is a transmission path that arrives first among the multiple transmission paths and whose energy value is greater than or equal to a third threshold.

17. The method according to any one of claims 12 to 16, characterized in that: The first indication information indicates the number of transmission paths of the first channel.

18. The method according to any one of claims 12 to 17, characterized in that: The first measurement result includes at least one of the following: arrival time, receiving angle, and carrier phase of the first signal.

19. A communication method, characterized in that: Applied to the first network element, including: receiving a third message, the third message including a perception result of a first object and third indication information, the first object being located on a transmission path of a second signal, and the third indication information indicating a channel quality of a third channel for transmitting the second signal; The quality of the perception result is determined based on the third indication information.

20. A communication method, characterized in that: Applied to a first communication device, comprising: receiving a second signal, wherein the second signal is used to sense the first object; A third message is sent, wherein the third message includes a perception result of the first object and third indication information, the first object is located on a transmission path of a second signal, and the third indication information indicates a channel quality of a third channel for transmitting the second signal.

21. The method according to claim 19 or 20, characterized in that The third indication information indicates that the third channel belongs to the first channel type, the first transmission path in the third channel is the transmission path with the strongest energy among multiple transmission paths of the first channel, and the first transmission path is the first transmission path to arrive among the multiple transmission paths.

22. The method according to claim 19 or 20, characterized in that The third indication information indicates that the third channel belongs to the second channel type, and the arrival time difference between the first transmission path and the second transmission path in the third channel is less than the first threshold; wherein the first transmission path is the first transmission path to arrive among multiple transmission paths of the third channel, and the second transmission path is a transmission path among the multiple transmission paths that is different from the first transmission path.

23. The method according to claim 19 or 20, characterized in that The third indication information includes the number of transmission paths of the third channel.

24. A communication device, characterized in that: Comprising units for performing the method according to any one of claims 1 to 23.

25. A communication device, characterized in that: including a processor and a memory; The memory is used to store instructions; The processor is configured to execute the instructions so that the method according to any one of claims 1 to 23 is performed.

26. A communication device, characterized in that: comprising a logic circuit and an interface, wherein the logic circuit and the interface are coupled; The interface is used to input and / or output code instructions, and the logic circuit is used to execute the code instructions so that the method described in any one of claims 1 to 23 is executed.

27. A computer-readable storage medium, characterized in that: The computer-readable storage medium is used to store a computer program. When the computer program is executed, the method according to any one of claims 1 to 23 is executed.

28. A computer program, characterized in that When the computer program is executed, the method according to any one of claims 1 to 23 is performed.

29. A communication system, characterized in that: The communication system comprises a location management service LMF and a first communication device, the LMF being used to execute the method as described in any one of claims 1-11, and the network device being used to execute the method as described in any one of claims 12-18.

30. A communication system, characterized in that: The communication system includes a first network element and a first communication device, the first network element is used to execute the method according to any one of claims 19 and 21-23, and the first communication device is used to execute the method according to any one of claims 20-23.

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