Information transmission method and communication apparatus

Abstract

The present application relates to the technical field of communications. Provided are an information transmission method and a communication apparatus. In the method, a third apparatus can determine first information used for indicating transmission modes and / or transmission orders that respectively correspond to M paths, and send the first information to a fourth apparatus. In this way, the fourth apparatus can determine the specific information of the M paths, so that an appropriate path is selected for positioning, thus improving the precision of positioning.

Description

Information transmission method and communication device

[0001] Cross-reference to Related Applications

[0002] This application claims priority to the Chinese Patent Application No. 202410557559.8, filed on April 30, 2024, entitled “Information transmission method and communication device”, the entire contents of which are incorporated herein by reference. TECHNICAL FIELD

[0003] The present application relates to the field of communication technology, and in particular to an information transmission method and a communication device. BACKGROUND

[0004] The virtual base station (VBS) based positioning technology is a technology for positioning by using non-line-of-sight (NLOS) paths between a terminal device and a base station. For some NLOS paths, the distance can be equivalent to the distance of a line-of-sight (LOS) path between a virtual base station and the terminal device, and the position of the virtual base station and the position of the base station (BS) can be mirror-symmetric about an obstacle. Therefore, the position of the virtual base station can be determined by using these NLOS paths, and the terminal device can be positioned based on the position of the base station and the position of the virtual base station by using the trilateration or triangulation positioning technology.

[0005] However, in actual communication, there are multiple NLOS paths between the terminal device and the base station, and the characteristics (such as distance) of different NLOS paths have large deviations. If positioning is performed by using some NLOS paths, the positioning accuracy can be poor. SUMMARY

[0006] The present application provides an information transmission method and a communication device, which are used to improve the positioning accuracy.

[0007] In a first aspect, an embodiment of the present application provides an information transmission method. The method can be applied to a third device side. The third device is, for example, a terminal device or a module in the terminal device, such as a communication module in the terminal device, a circuit or a chip responsible for communication function, a chip such as a modem chip, also known as a baseband chip, or a system on chip (SoC) chip or a system in package (SIP) chip containing a modem core, etc. The third device is, for example, an access network device or a module in the access network device, such as a circuit, a chip or a chip system in the access network device, etc. Alternatively, the module in the access network device may, for example, also be a central unit control plane (CU-CP), a distributed unit (DU), a central unit control plane (CU-CP), a central unit user plane (CU-UP), an open central unit (O-CU), or a radio access network intelligent controller (RIC). The RIC may, for example, include, such as a non-real time radio access network intelligent controller (Non-RT RIC) and / or a near-real time RAN intelligent controller (Near-RT RIC), etc. Alternatively, the third device is a core network device, such as an access and mobility management function (AMF), a sensing management function (SMF), a location management function (LMF) (also known as a positioning management device, or a positioning management network element, a positioning server, a positioning center, a positioning network element, a positioning function network element, or a sensing management function, etc.), or a sensing management control (SMC) (also known as a control network element, an edge sensing function network element, an edge control network element, or an edge control node), etc.

[0008] The method comprises: the third device sending (or reporting) first information to the fourth device. Optionally, the method further comprises determining the first information. The first information indicates transmission manners and / or transmission orders corresponding to M paths, wherein the transmission manner corresponding to any path in the M paths comprises at least one of reflection, scattering, diffraction, transmission, or refraction, the M paths are transmission paths of signals between the first device and the second device, and M is a positive integer. Optionally, the first information is used for positioning or perception of the first device.

[0009] In a first possible design, the third device can be the same as the first device; for example, the first device and the third device are both terminal devices or modules in terminal devices, the second device is an access network device, or the first device and the third device are both access network devices or modules in access network devices, and the second device is a terminal device or a module in a terminal device. In a second possible design, the third device can be the same as the second device; for example, the third device and the second device are both access network devices or modules in access network devices, the first device is a terminal device or a module in a terminal device, or the third device and the second device are both terminal devices or modules in terminal devices. In a third possible design, the third device is a device other than the first device and the second device; for example, the first device is a terminal device or a module in a terminal device, the second device is an access network device or a module in an access network device, and the third device is a core network device. In addition, the fourth device can also be referred to as a perception network element (also referred to as a perception function network element, a perception function entity, a perception measurement network element, or a perception measurement entity, etc.) or a positioning device. The fourth device is, for example, an access network device or a module in an access network device, or the fourth device is, for example, a positioning server or a component (such as a circuit, a chip, or a chip system, etc.) in a core network device (for example, an LMF, an SMF, or an SMC, etc.). The positioning server can be deployed on a third-party platform, for example.

[0010] The M paths can also be referred to as M path(s). The M paths can be part or all of paths through which signals are transmitted between the first device and the second device, without specific limitation. Any path in the M paths can be an NLOS path. The transmission mode corresponding to any path (such as an NLOS path) includes, for example, a combination of one or more of reflection, scattering, diffraction, transmission, or refraction, for example, the transmission mode corresponding to a certain path is reflection and reflection, or is represented as reflection + reflection, or is represented as reflection-reflection. The transmission mode corresponding to any path can also be described as the transmission mode of any path. The transmission order corresponding to any path can be understood as the number of obstacles on any path, or the number of changes in the direction of signals transmitted on any path, or the number of transmission modes corresponding to any path, and the like. In the case where the transmission order corresponding to any path is greater than 1, the transmission order corresponding to any path can be considered as multi-order, and then the transmission mode corresponding to any path can be described as a combination of the transmission modes corresponding to each order of multi-order, or can be described as the transmission mode corresponding to each order of multi-order. For example, the transmission order of any path is 2, and the transmission modes corresponding to the transmission order in turn are refraction and reflection, and then the transmission mode corresponding to any path can be described as refraction and reflection (which can also be represented as refraction + reflection, or refraction-reflection, and the like), or the transmission mode corresponding to any path can be described as first-order refraction and second-order reflection.

[0011] In the embodiments of the present application, the third device and the fourth device can determine the transmission mode and / or the transmission order corresponding to the M paths based on the first information, which is equivalent to determining the specific information of the M paths, and provides a mechanism for reporting the specific information of the paths, so that the fourth device can determine (or select) a path more suitable for positioning based on the first information, thereby facilitating the improvement of the positioning accuracy.

[0012] In a possible implementation, the first information can also indicate the transmission mode and / or the transmission order of the third path, or can be described as the first information can also indicate the third path, and the third path is an LOS path. The transmission mode of the third path is transmission (or direct transmission), and the transmission order of the third path is 0.

[0013] In a possible implementation, the transmission order corresponding to any path in the M paths is a natural number.

[0014] In a possible implementation, the transmission order corresponding to any path in the M paths is related to the transmission mode corresponding to any path. For example, the number of transmission orders corresponding to any path is greater than or equal to the number of types (or categories) of transmission modes corresponding to any path, and / or the number of transmission orders corresponding to any path is greater than or equal to the number of transmission modes corresponding to any path.

[0015] For example, the M paths include path 1 and path 2, the transmission mode of path 1 includes reflection and reflection in sequence, and the transmission mode of path 2 includes reflection and refraction in sequence. As can be seen, the transmission orders of path 1 and path 2 are both 2, the type of the transmission mode corresponding to path 1 is only reflection, and the type of the transmission mode corresponding to path 2 includes reflection and refraction. Therefore, the number of the type of the transmission mode corresponding to path 1 is less than the transmission order of path 1, and the number of the type of the transmission mode corresponding to path 2 is equal to the transmission order of path 2. The number of the transmission mode corresponding to path 1 is equal to the transmission order of path 1, and the number of the transmission mode corresponding to path 2 is equal to the transmission order of path 2.

[0016] In this way, when the first information indicates the number of transmission modes, the transmission order does not need to be indicated separately, so as to reduce the number of bits occupied by the first information. When the first information indicates the transmission mode and the transmission order, the transmission mode and the transmission order corresponding to a certain path can be verified with each other, so as to ensure the accuracy of the information of the path.

[0017] In a possible implementation, the transmission orders corresponding to any two paths of the M paths are the same, and the transmission modes are the same; or, the transmission orders corresponding to at least two paths of the M paths are different; or, the transmission modes corresponding to at least two paths of the M paths are different.

[0018] In this way, when the transmission orders corresponding to the M paths are the same and the transmission modes are the same, the third device reports the information of a certain specific path, for example, the information of a path that is more suitable for positioning can be reported, so as to reduce the number of bits occupied by the first information. When the transmission orders corresponding to at least two paths of the M paths are different, or the transmission modes corresponding to at least two paths of the M paths are different, the third device reports the information of multiple paths, and more comprehensive path information is provided.

[0019] In a possible implementation, the transmission modes corresponding to W paths of the M paths are all associated with a first transmission order, where the transmission orders corresponding to the W paths are all the first transmission order, and W is an integer greater than or equal to 1; and / or, the transmission orders corresponding to X paths of the M paths are all associated with a first transmission mode, where the transmission modes corresponding to the X paths are all the first transmission mode, and X is an integer greater than or equal to 1.

[0020] The transmission modes corresponding to the W paths are all associated with (or correspond to) the first transmission order, which can also be described as the first transmission order being associated with (or corresponding to) the transmission modes corresponding to the W paths. The transmission orders corresponding to the X paths are all associated with (or correspond to) the first transmission mode, which can also be described as the first transmission mode being associated with (or corresponding to) the transmission orders corresponding to the X paths.

[0021] In this way, the fourth device can screen a suitable path based on the first transmission order or the first transmission mode, so that the fourth device screens the path, which is conducive to improving the efficiency of the fourth device screening the path, and is conducive to improving the efficiency of the fourth device positioning the first device.

[0022] In a possible implementation, the transmission modes corresponding to the M paths are all reflection, and the transmission orders corresponding to the M paths are all 1.

[0023] In this way, the M paths can all be used for positioning, the number of bits occupied by the first information is reduced, and the fourth device can perform positioning based on part or all of the M paths, so that the fourth device does not need to separately screen a path suitable for positioning, and the processing amount of the fourth device is reduced.

[0024] In a possible implementation, after the first information is sent, the method further includes: receiving second information, the second information indicating information of a path satisfying a condition sent by the third device, or the second information indicating information of a path satisfying or not satisfying the condition sent by the third device, the condition indicating that a transmission mode and / or a transmission order corresponding to the path satisfies a condition. Correspondingly, the transmission mode and / or the transmission order corresponding to the M paths satisfies the condition.

[0025] For example, the condition indicates that the transmission mode corresponding to the path is a specific transmission mode, and / or the transmission order corresponding to the path is a specific transmission order. The conditions corresponding to any two paths of the M paths are the same or different, which is not limited specifically. The specific transmission mode can be one or more specific transmission modes, for example, reflection, which is not limited specifically. The specific transmission order can be one or more specific transmission orders, for example, 1, which is not limited specifically.

[0026] In this way, in a case where the second information indicates the information of the path satisfying the condition sent by the third device, the M paths satisfy the condition, and the third device can determine and report the M paths satisfying the condition based on the second information, and can not need to determine other paths, so that the processing amount and the transmission amount of the third device are reduced. In a case where the second information indicates the information of the path satisfying or not satisfying the condition sent by the third device, the third device and the fourth device can negotiate the condition corresponding to the path, so that the third device can determine whether the M paths satisfy the corresponding condition according to the condition, and indicate whether the M paths satisfy the condition to the fourth device. In this way, the amount of information reported by the third device can be reduced.

[0027] For example, M paths 3 paths, path 1 is a first order reflection, path 2 is a first order scattering, path 3 is a second order reflection + scattering, the conditions include path is a first order reflection, path is a first order scattering, and path is a second order reflection + reflection. The third device can send first information, which indicates that path 1 satisfies the condition, path 2 satisfies the condition, and path 3 does not satisfy the condition.

[0028] In one possible implementation, the first information includes at least one of (1) to (4) as follows: (1) information of transmission modes corresponding to the M paths respectively, and information of transmission orders corresponding to the M paths respectively; (2) information of transmission modes corresponding to at least one path associated with each of P transmission orders, wherein the P transmission orders are a union set of the transmission orders corresponding to the M paths, wherein the at least one path associated with one transmission order includes paths of the M paths with the transmission order being the one transmission order, and P is a positive integer; or (3) information of transmission orders corresponding to at least one path associated with each of Q transmission modes, wherein the Q transmission modes are a union set of the transmission modes corresponding to the M paths, wherein the at least one path associated with one transmission mode includes paths of the M paths with the transmission mode being the one transmission mode, and Q is a positive integer; or (4) information of the transmission mode and / or the transmission order of each of the M paths satisfying a condition, or information of the transmission mode and / or the transmission order of each of the M paths not satisfying the condition.

[0029] In this way, multiple possibilities of the first information are provided. In a case where the first information includes the information shown in (1) above, the fourth device can select paths with required orders and transmission modes as needed (such as requirements of different positioning methods), increase flexibility of selection of the fourth device, and increase availability and reliability of application of positioning by the fourth device. In a case where the first information includes the information shown in (2) above, information of paths existing under each transmission order and transmission modes corresponding to the paths is provided, so that the fourth device can flexibly select paths for positioning based on the transmission order, which is beneficial to improve availability and reliability of positioning. In a case where the first information includes the information shown in (3) above, information of paths existing under each transmission mode and transmission orders corresponding to the paths is provided, so that the fourth device can flexibly select paths for positioning based on the transmission mode, which is beneficial to improve availability and reliability of positioning. In a case where the first information includes the information shown in (4) above, then the third device can directly report whether each of the M paths satisfies the condition, so that the amount of information transmitted by the third device to the fourth device can be simplified.

[0030] In a possible implementation, the first information indicates the transmission manner and / or the transmission order corresponding to each of the M paths, including: the first information includes probability information of each of the M paths. The probability information of any path of the M paths indicates at least one of a probability corresponding to a transmission manner corresponding to the any path, a probability corresponding to a transmission order, or a probability corresponding to the transmission manner and the transmission order corresponding to the any path. The probability information of each path can also be referred to as probability information corresponding to each path, and the like.

[0031] In a case where the transmission order of any path of the M paths is 1, the probability corresponding to the transmission manner corresponding to the any path indicates probabilities that the transmission manner corresponding to the any path respectively belongs to S transmission manners, S being a positive integer. In a case where the transmission order of any path of the M paths is greater than 1, the probability corresponding to the transmission manner corresponding to the any path indicates probabilities that the transmission manner corresponding to each order of the any path respectively belongs to S transmission manners, which is equivalent to indicating the probabilities of the transmission manners of the any path order by order, or can be regarded as describing the probabilities of the transmission manners of the any path order by order; or, the probability corresponding to the transmission manner corresponding to the any path indicates a probability that the transmission manner of the any path belongs to a certain transmission manner. The probability corresponding to the transmission manner and the transmission order corresponding to the any path can be determined based on the probability corresponding to the transmission manner corresponding to the any path and a probability of the transmission order corresponding to the any path. The probability of the transmission order corresponding to the any path indicates probabilities that the any path respectively belongs to W transmission orders, W being a positive integer.

[0032] For example, the probability corresponding to the transmission manner corresponding to the any path is that probabilities that a first-order transmission manner corresponding to the any path belongs to reflection, refraction, and scattering are {0.1, 0.5, 0.4} respectively, and probabilities that a second-order transmission manner corresponding to the any path belongs to reflection, refraction, and scattering are {0.3, 0.6, 0.1} respectively. Or, the probability corresponding to the transmission manner corresponding to the any path indicates probabilities that the any path respectively belongs to U transmission manners, U being an integer greater than or equal to S. For example, the probability corresponding to the transmission manner corresponding to the any path is that a probability that the transmission manner corresponding to the any path belongs to reflection and refraction is 0.5, and a probability that the transmission manner corresponding to the any path belongs to refraction and reflection is 0.5. Or, the probability corresponding to the transmission manner of the any path includes a probability that a first-order transmission manner corresponding to the any path is refraction is 0.6, and a probability that a second-order transmission manner corresponding to the any path is reflection is 0.4.

[0033] In this way, a mechanism for indicating the transmission manner and / or the transmission order is provided. Under this mechanism, the third device can comprehensively and accurately report the probability information of the M paths.

[0034] In a possible implementation, the method further includes: receiving third information, and sending fourth information. The third information indicates that the third device reports capability information, and the fourth information indicates a capability of the third device, the capability of the third device including a transmission mode supported by the third device and / or a transmission order supported by the third device. Optionally, the transmission mode corresponding to each of the M paths is the transmission mode supported by the third device, and / or the transmission order corresponding to each of the M paths is the transmission order supported by the third device.

[0035] In this way, the third device is queried about the capability, thereby improving the success rate of the third device determining or reporting the first information.

[0036] In a possible implementation, the method further includes: sending fifth information, the fifth information indicating parameters corresponding to the M paths. Optionally, the fifth information and the first information are used for positioning the first device.

[0037] The first information and the fifth information can be carried in a same message or in different messages, which is not limited herein.

[0038] In this way, the fourth device can receive more information about the M paths, so that the fourth device can more accurately select a path to more accurately position the first device.

[0039] In a second aspect, an embodiment of the present application provides an information transmission method. The method can be applied to the fourth device side. The content of the fourth device can refer to the content of the fourth device discussed in the first aspect above, and the repeated content is not listed again. The method includes: obtaining first information, wherein the first information indicates transmission modes and / or transmission orders corresponding to M paths, the transmission mode corresponding to any path in the M paths including at least one of reflection, scattering, diffraction, transmission, or refraction, the M paths being transmission paths of signals between the first device and the second device, and M being a positive integer. Optionally, the fourth device can also position or sense the first device based on the first information.

[0040] In a possible implementation, obtaining the first information includes: the fourth device determining the first information by itself or receiving the first information from the third device. The content of the first information determined by the fourth device can refer to the content of the first information determined by the third device discussed in the first aspect above, and the repeated content is not listed again.

[0041] In a possible implementation, the first information can also indicate the transmission mode and / or the transmission order of the third path, or can be described as the first information can also indicate the third path, the third path being a LOS path.

[0042] In a possible implementation, the transmission order corresponding to any path in the M paths is a natural number.

[0043] In a possible implementation, the transmission order corresponding to any of the M paths is associated with the transmission mode corresponding to any of the M paths.

[0044] In a possible implementation, the transmission order corresponding to any of the M paths is associated with the transmission mode corresponding to any of the M paths, including: the number of the transmission orders corresponding to any of the M paths is greater than or equal to the number of the types of the transmission modes corresponding to any of the M paths; and the number of the transmission orders corresponding to any of the M paths is greater than or equal to the number of the transmission modes corresponding to any of the M paths.

[0045] In a possible implementation, when M is greater than 1, the M paths satisfy the following conditions: any two of the M paths correspond to the same transmission order and the same transmission mode; or at least two of the M paths correspond to different transmission orders; or at least two of the M paths correspond to different transmission modes.

[0046] In a possible implementation, the transmission modes corresponding to the M paths are all reflection, and the transmission orders corresponding to the M paths are all 1.

[0047] In a possible implementation, the method further includes: sending second information, the second information indicating information of a path whose transmission mode and / or transmission order satisfy a condition, or the second information indicating information of a path whose transmission mode and / or transmission order do not satisfy a condition. In this case, the M paths all satisfy the condition.

[0048] In a possible implementation, the first information includes at least one of the following: information of the transmission modes of the M paths respectively, and information of the transmission orders of the M paths respectively; information of the transmission modes corresponding to at least one path associated with each of P transmission orders, wherein the P transmission orders are a union of the transmission orders corresponding to the M paths respectively, the at least one path associated with one transmission order includes a path of the M paths whose transmission order is the one transmission order, and P is a positive integer; information of the transmission orders corresponding to at least one path associated with each of Q transmission modes, wherein the Q transmission modes are a union of the transmission modes corresponding to the M paths respectively, the at least one path associated with one transmission mode includes a path of the M paths whose transmission mode is the one transmission mode, and Q is a positive integer; or information of the transmission modes and / or transmission orders of each of the M paths satisfying a condition, or information of the transmission modes and / or transmission orders of each of the M paths not satisfying the condition.

[0049] In a possible implementation, the W paths of the M paths correspond to the first transmission order, where W is an integer greater than 1, and / or the X paths of the M paths correspond to the first transmission mode, where X is an integer greater than 1.

[0050] In a possible implementation, the first information indicates transmission modes corresponding to the M paths respectively, including that the first information includes probability information of each path of the M paths, where the probability information of any path of the M paths indicates at least one of a probability corresponding to a transmission mode corresponding to the any path, a probability corresponding to a transmission order, or a probability corresponding to a transmission mode and a transmission order.

[0051] In a possible implementation, the method further includes: sending third information, where the third information is used to indicate that a third device reports capability information; and receiving fourth information, where the fourth information indicates a capability of the third device, and the capability of the third device includes a transmission mode and / or a transmission order supported by the third device.

[0052] In a possible implementation, the method further includes: receiving fifth information, where the fifth information indicates parameters corresponding to the M paths respectively; and locating the first device based on the first information, including: locating the first device based on the fifth information and the first information.

[0053] In a third aspect, a communication apparatus is provided. The communication apparatus can be the third device in the first aspect, or a module (for example, a chip system) configured in the third device, or a larger device including the third device, for example, the third device is a DU, and the communication apparatus can be an access network node or device including the DU, and the like. The communication apparatus includes means or modules for performing the corresponding steps of the first aspect or any possible implementation. For example, the communication apparatus includes a processing unit (sometimes referred to as a processing module) and a communication unit (sometimes referred to as a communication module). The communication unit is configured to perform a transceiving operation, such as functions related to sending and receiving; the communication unit can be referred to as a transceiving unit; optionally, the communication unit includes a receiving unit and a sending unit. The processing unit is configured to perform a processing operation. Alternatively, the communication unit can be a transmitter and a receiver, or the communication unit is a transmitter and a receiver. Optionally, the communication apparatus further includes a storage unit (sometimes referred to as a storage module).

[0054] For example, the processing unit is configured to determine the first information, and the communication unit is configured to send the first information.

[0055] The communication apparatus can also implement the content of any possible implementation of the first aspect, which is not listed here.

[0056] In a possible design, the communication apparatus is a communication chip, the processing unit can be one or more processors or processor cores, and the communication unit can be an input / output circuit, an input / output interface, or an antenna port of the communication chip.

[0057] In a fourth aspect, the present application provides a communication apparatus. The communication apparatus can be the fourth apparatus in the first aspect, or can be a module (for example, a chip system) configured in the fourth apparatus, or can be a larger device including the fourth apparatus, for example, the fourth apparatus is a CU, and the communication apparatus can be an access network node or device including the CU, and the like. The communication apparatus includes means or modules for performing the corresponding steps of the second aspect or any possible implementation manner. For example, the communication apparatus includes a processing unit (also referred to as a processing module) and a communication unit (also referred to as a communication module). The communication unit is configured to perform a transceiving operation, such as functions related to transmitting and receiving. The communication unit can be referred to as a transceiving unit. Optionally, the communication unit includes a receiving unit and a transmitting unit. The processing unit is configured to perform a processing operation. Alternatively, the communication unit can be a transmitter and a receiver, or the communication unit is a transmitter and a receiver. Optionally, the communication apparatus further includes a storage unit (also referred to as a storage module).

[0058] For example, the communication unit is configured to receive the first information, and the processing unit is configured to locate or perceive the first apparatus based on the first information.

[0059] The communication apparatus can also implement the content of any possible implementation manner of the second aspect, which is not listed here.

[0060] In a possible design, the communication apparatus is a communication chip, the processing unit can be one or more processors or processor cores, and the communication unit can be an input / output circuit, an input / output interface, or an antenna port of the communication chip.

[0061] In a fifth aspect, the present application provides a communication apparatus. The communication apparatus includes one or more processors. The one or more processors can execute a computer program or instructions in a memory, and when the computer program or instructions are executed, the communication apparatus implements the method in the first aspect, any possible implementation manner of the first aspect, the second aspect, or any possible implementation manner of the second aspect.

[0062] Optionally, the communication apparatus can include a memory, in which case the memory can be coupled with the one or more processors, or the memory can be relatively independent of the one or more processors. Alternatively, the memory is relatively independent of the communication apparatus.

[0063] In a possible design, the communication apparatus can further include an interface circuit, and the processor can be configured to communicate with other apparatuses or components through the interface circuit.

[0064] The communication apparatus can be a terminal device, a communication module in a terminal device, or a chip responsible for communication function in a terminal, such as a Modem chip (also referred to as a baseband chip) or a SoC or SIP chip including a modem module. Alternatively, the communication apparatus can be an access network device or a module in an access network device.

[0065] In a sixth aspect, an embodiment of the present application provides a communication apparatus. The communication apparatus includes a processor and an interface circuit. The interface circuit is configured to receive a signal from another communication apparatus outside the communication apparatus and transmit the signal to the processor or send a signal from the processor to another communication apparatus outside the communication apparatus. The processor is configured to implement the method in the first aspect, any possible implementation of the first aspect, the second aspect, or any possible implementation of the second aspect through a logic circuit or by executing code instructions. The number of processors can be one or more, which is not limited.

[0066] In a specific implementation process, the communication apparatus can be a chip, and the processor can be a transistor, a gate circuit, a flip-flop, and various logic circuits, and the specific implementation of the processor is not limited in the embodiments of the present application.

[0067] In an implementation, the communication apparatus can be a wireless communication device, i.e., a computer device supporting wireless communication function. Specifically, the wireless communication device can be a terminal device such as a smart phone, or a network device such as a wireless access network device (e.g., a base station).

[0068] In another implementation, the communication apparatus can be a part of an integrated circuit product in a wireless communication device, such as a system chip or a communication chip. The system chip can also be referred to as a SoC or SoC chip. The communication chip can include a baseband processing chip and a radio frequency processing chip. The baseband processing chip is sometimes also referred to as a modem or a baseband chip. The radio frequency processing chip is sometimes also referred to as a radio frequency transceiver or a radio frequency chip. In physical implementation, part or all of the chips in the communication chip can be integrated inside the SoC chip. For example, the baseband processing chip is integrated in the SoC chip, and the radio frequency processing chip is not integrated with the SoC chip. The interface circuit can be a radio frequency processing chip in the wireless communication device, and the processor can be a baseband processing chip in the wireless communication device. The interface circuit can be an input / output interface, an interface circuit, an output circuit, an input circuit, a pin, or related circuit on the chip or chip system. The processor can also be embodied as a processing circuit or a logic circuit.

[0069] In yet another implementation, the communication apparatus can be a chip system, which can be composed of a chip or can contain a chip and other discrete devices. The chip system can include, for example, a field programmable gate array (FPGA), an application specific integrated circuit (ASIC), a system on chip (SoC), a CPU, a network processor (NP), a digital signal processor (DSP), a micro controller unit (MCU), a programmable logic device (PLD), or other integrated chip, etc.

[0070] In a seventh aspect, an embodiment of the present application provides a communication system. The communication system is configured to implement the method in the first aspect, any possible implementation of the first aspect, the second aspect, or any possible implementation of the second aspect.

[0071] For example, the communication apparatus includes the communication apparatus in the third aspect and any possible implementation of the third aspect, and the communication apparatus in the fourth aspect and any possible implementation of the fourth aspect.

[0072] In an eighth aspect, an embodiment of the present application provides a chip system. The chip system includes a processor. Optionally, the chip system can further include an interface (such as a communication interface). The processor can be configured to implement any of the methods in the first aspect and possible implementation to the fourth aspect and possible implementation. Optionally, the chip system further includes a memory. The memory is configured to store a computer program (which can also be referred to as code or instruction). The processor is configured to invoke and run the computer program from the memory, so that a device installed with the chip system performs the method in the first aspect, any possible implementation of the first aspect, the second aspect, or any possible implementation of the second aspect. The implementation of the chip system can refer to the content of the chip system mentioned above, which will not be listed here.

[0073] In a ninth aspect, an embodiment of the present application provides a computer readable storage medium. The computer readable storage medium is configured to store a computer program or instruction, which, when executed, implements the method in the first aspect and possible implementation, the first aspect, any possible implementation of the first aspect, the second aspect, or any possible implementation of the second aspect.

[0074] In a tenth aspect, an embodiment of the present application provides a computer program product. When a computer reads and executes the computer program product, the computer is caused to perform the method in the first aspect, any possible implementation of the first aspect, the second aspect, or any possible implementation of the second aspect. The computer program product includes, for example, a computer program and / or instructions, etc.

[0075] The beneficial effects of any of the technical solutions of the second aspect to the tenth aspect above can be discussed with reference to the beneficial effects of the corresponding technical solutions in the first aspect, which will not be listed here. BRIEF DESCRIPTION OF DRAWINGS

[0076] FIG. 1 is a schematic diagram of a path between a sender and a receiver;

[0077] FIG. 2 is a schematic diagram of a process of determining a location of a terminal device;

[0078] FIG. 3 is a schematic diagram of a principle of uplink time difference of arrival positioning;

[0079] FIG. 4 is a schematic diagram of a principle of positioning based on a virtual base station;

[0080] FIG. 5 is a schematic diagram of an architecture of a communication system to which embodiments of the present application are applicable;

[0081] FIG. 6A is a schematic diagram of another architecture of a communication system to which embodiments of the present application are applicable;

[0082] FIG. 6B is a schematic diagram of still another architecture of a communication system to which embodiments of the present application are applicable;

[0083] FIG. 6C is a schematic diagram of yet another architecture of a communication system to which embodiments of the present application are applicable;

[0084] FIG. 7 is a schematic diagram of an architecture of an open access network to which embodiments of the present application are applicable;

[0085] FIG. 8 is a schematic diagram of a process of an information transmission method provided by an embodiment of the present application;

[0086] FIG. 9 is a schematic diagram of a process of path matching provided by an embodiment of the present application;

[0087] FIG. 10 is a schematic diagram of a process of positioning a terminal device provided by an embodiment of the present application;

[0088] FIG. 11 is a schematic diagram of an interaction between apparatuses provided by an embodiment of the present application;

[0089] FIG. 12 is a schematic diagram of a process of another information transmission method provided by an embodiment of the present application;

[0090] FIG. 13 is a schematic diagram of a process of still another information transmission method provided by an embodiment of the present application;

[0091] FIG. 14 is a flow diagram of another information transmission method according to an embodiment of the present application;

[0092] FIG. 15 is a structural diagram of a communication apparatus according to an embodiment of the present application;

[0093] FIG. 16 is a structural diagram of another communication apparatus according to an embodiment of the present application;

[0094] FIG. 17 is a structural diagram of still another communication apparatus according to an embodiment of the present application. DETAILED DESCRIPTION

[0095] The embodiments of the present application will be described in further detail below with reference to the drawings.

[0096] The following explains some terms used in the embodiments of the present application, so as to facilitate understanding by those skilled in the art.

[0097] 1. LOS and NLOS

[0098] LOS and NLOS are two opposite transmission scenarios. LOS means that there is no obstacle in the path of the transmission signal between the sender and the receiver. The obstacle can also be referred to as a shelter or a block, etc. NLOS means that there is an obstacle in the path of the transmission signal between the sender and the receiver. The obstacle can be a person, an animal or a thing, etc., and the type thereof is not limited. For example, the obstacle is at least one of a building (such as the wall of a building), a vehicle or a plant, etc. In addition, the obstacle is relative to a reference object that is stationary or moving, and this is not limited. The reference object can also be referred to as a reference, such as the earth or the ground, etc.

[0099] The obstacle on the path can have an impact on the transmission of the signal. That is, some obstacles on the path can act on the signal transmitted on the path. The action can be at least one of reflection, scattering, diffraction, transmission or refraction, etc. Due to the action of the obstacle, at least one of the intensity, angle, direction (or transmission direction or propagation direction, etc.) or power of the signal in the transmission process will change.

[0100] Reflection refers to the phenomenon that a wave (such as an electromagnetic wave) propagates back when reaching an obstacle. Scattering refers to the phenomenon that an electromagnetic wave carrying a signal propagates in different directions when encountering an obstacle whose surface is about equal to or smaller than the wavelength of the electromagnetic wave. For example, an electromagnetic wave encounters a rough obstacle surface and scatters. Diffraction, also known as refraction, refers to the physical phenomenon that a wave deviates from the original straight-line propagation when encountering an obstacle. Transmission refers to the phenomenon that a wave exits after being refracted through an obstacle. The object being transmitted is, for example, a transparent or translucent body, such as glass, a color filter, etc. Refraction refers to the change in the direction of a wave when it passes through an obstacle or experiences a gradual change in the obstacle.

[0101] According to the type of the effect of the obstacle on the signal on the path, the obstacle can be classified as a reflector, a scatterer, a diffractor, a transmitter, or a refractor, etc. The reflector exerts a reflection effect on the signal on the path. The scatterer exerts a scattering effect on the signal on the path. The diffractor exerts a diffraction effect on the signal on the path. The transmitter exerts a transmission effect on the signal on the path. The refractor exerts a refraction effect on the signal on the path. The reflector, the scatterer, the diffractor, the transmitter, or the refractor, etc. can be further classified according to their actual forms, which are not limited herein. For example, the reflector can include a reflecting surface or a reflecting point, etc. The reflecting surface refers to a surface that reflects a signal, and the reflecting point refers to a point that reflects a signal, etc.

[0102] 2. Path, LOS path, and NLOS path

[0103] The path can also be referred to as a path, a route, a propagation path, or a transmission route, etc. The path for transmitting a signal from a sender to a receiver can include one or more paths. When the one or more paths are two or more, the one or more paths can be referred to as a multipath, or it can be described that the transmission between the sender and the receiver is a multipath transmission. Any path in the one or more paths can be classified as a LOS path and a NLOS path. The LOS path can also be referred to as a LOS propagation path or a LOS transmission path, etc. The NLOS path can also be referred to as a NLOS propagation path or a NLOS transmission path, etc. The LOS path refers to a signal transmission path without an obstacle, for example, the LOS path is a straight line connecting the sender and the receiver. The NLOS path corresponds to the LOS path, and the NLOS path refers to a signal transmission path with an obstacle. When all the obstacles existing on the NLOS path are reflectors, the NLOS path can be referred to as a reflection path.

[0104] 3. Transmission mode and transmission order

[0105] The transmission manner can also be referred to as a propagation manner, a transmission paradigm, or a propagation paradigm, etc. The transmission manner can be understood as a manner of transmitting a signal on a path. Different paths (such as NLOS paths) can exhibit different transmission manners due to different types of effects of obstacles on the signal. Correspondingly, the transmission manner of a path can be classified into at least one of reflection, scattering, diffraction, transmission, or refraction according to the type of effect of the obstacle on the signal. That is, the transmission manner includes one or a combination of reflection, scattering, diffraction, transmission, or refraction.

[0106] For example, an obstacle reflects the signal on a path, and the transmission manner corresponding to the path includes reflection. For another example, one obstacle reflects the signal on a path, and another obstacle refracts the signal on the path, and the transmission manner corresponding to the path includes reflection and refraction. For another example, one obstacle reflects the signal on a path, and another obstacle reflects the signal on the path, and the transmission manner corresponding to the path includes reflection and reflection.

[0107] In addition, the type (or category) of the transmission manner includes one of reflection, scattering, diffraction, transmission, or refraction. For example, the transmission manner corresponding to a path includes reflection and refraction, and the type of the transmission manner corresponding to the path is two; for another example, the transmission manner corresponding to a path includes reflection and reflection, and the type of the transmission manner corresponding to the path is one.

[0108] The transmission order can also be referred to as an order or a propagation order, etc. The transmission order is a natural number, such as 0, 1, 2, 3, etc. The transmission order can be understood (or replaced) as the number of obstacles on a path, or the number of obstacles acting on a signal on a path, or the number of changes in direction / angle of a signal transmitted on a path, or the number of transmission manners corresponding to a path, or the number of obstacles acting on a signal in a specific manner on a path, or can be understood as the number of times a signal on a path changes direction due to a specific transmission manner. The specific action can be one or more actions, and the specific transmission manner can also be one or more transmission manners, which are not specifically limited. For example, the specific action or the specific transmission manner is reflection, and the transmission order can be the number of obstacles reflecting the signal on the path, or the number of times the signal on the path changes direction due to reflection.

[0109] In the case that the transmission order of a certain path is greater than 1, the transmission order of the path can be referred to as multi-order. In one possible design, the transmission manner of the path can be (or can be described as) a combination of the transmission manners corresponding to the multi-order respectively. In this case, the transmission manner of the path can be regarded as one, which is the combination result of the transmission manners corresponding to the multi-order respectively. For example, the transmission order of a path is 2, and the transmission manners corresponding to the transmission order are refraction and reflection in sequence. Then the transmission manner of the path can be described as refraction+reflection (which can also be represented as refraction and reflection, or refraction-reflection). In this case, the number of the transmission manners of the path can be regarded as 1.

[0110] In another possible design, the transmission manner of a certain path can be described as the transmission manner corresponding to each order of multi-order, in other words, the transmission manner of the path is multiple, and the multiple transmission manners include the transmission manner corresponding to each order. For example, the transmission order of a path is 2, and the transmission manners corresponding to the transmission order are refraction and reflection in sequence. Then the transmission manner of the path can be described as first-order refraction and second-order reflection. In this case, the number of the transmission manners of the path can be regarded as 2.

[0111] In one possible design, the transmission order is associated with the transmission manner. The transmission order of a certain path is greater than or equal to the number of the transmission manners included in the path, and / or the transmission order is greater than or equal to the number of the types of the transmission manners included in the path.

[0112] Please refer to FIG. 1 for a schematic diagram of paths between a sender and a receiver. As shown in FIG. 1, there are four paths between the sender and the receiver, such as path abcd, path ad, path aed and path afd shown in FIG. 1.

[0113] The signal on path abcd is reflected by obstacle 1 and obstacle 3 in sequence, and therefore the type of the transmission manner of path abcd is reflection. The transmission manner of path abcd includes reflection and reflection, and the transmission order of path abcd is 2. The signal on path ad does not pass through any obstacle, and therefore the transmission order of path ad is 0. The signal on path aed is reflected by obstacle 1 once, and therefore the type of the transmission manner of path aed is reflection. The transmission manner of path aed includes reflection, and the transmission order of path aed is 1. The signal on path afd is refracted by obstacle 2 once, and therefore the type of the transmission manner of path afd is refraction. The transmission manner of path aed includes refraction, and the transmission order of path afd is 1.

[0114] Since the transmission manner and / or the transmission order of a certain path represent some specific content corresponding to the path, the transmission manner and / or the transmission order of the path can also be regarded as or collectively referred to as the type corresponding to the path.

[0115] 4、Parameter(s) corresponding to a path:

[0116] The parameter(s) corresponding to a path can also be referred to as a parameter of a path, a set of parameters of a path, or the like, without limitation on the name thereof. The parameter(s) of a path are used to determine (or identify) the path, or in other words, the parameter(s) of a path can be used to distinguish or identify the path. The parameter(s) of a path include one or more types of parameters of the path. The one or more types of parameters include, for example, at least one of a distance, a phase, an angle, a power, an intensity, a loss, a delay, a time of arrival (TOA), a reference signal time difference (RTSD), a relative time of arrival (RTOA), or a channel impulse response.

[0117] The angle of a path includes at least one of a direction of arrival (DoA) (or a direction of arrival angle), a direction of departure (DoD) (or a direction of departure angle), an angle of arrival (AoA), a pitch angle, or an azimuth angle. The direction of arrival can be understood as an angle of a signal when the signal is emitted from a transmitting antenna of a sender. The angle of arrival can be understood as an angle of a signal when the signal reaches a receiving antenna of a receiver. The direction of arrival can be divided into a horizontal direction of arrival and a vertical direction of arrival, etc. The angle of arrival can be divided into an azimuth of arrival / azimuth-angle of arrival and a zenith angle of arrival / zenith-angle of arrival (ZoA). The delay of a path refers to a time consumed by a signal from a transmitting end to a receiving end of a path, also referred to as a time of flight. The channel impulse response can be a channel time-domain response, which refers to a change in amplitude and / or phase experienced by a signal when the signal propagates on a path. For example, a parameter corresponding to a path includes a direction of arrival angle of 108 degrees (°) and a delay of 112 nanoseconds (ns).

[0118] 5、Environment and environment information:

[0119] The environment can also be referred to as a scene. The environment involved in the embodiments of the present application refers to the environment in which the sender or the receiver is located (or located). The environment in which the sender is located can be an environment determined with the position of the sender as a reference point, and similarly, the environment in which the receiver is located can be understood as an environment determined with the position of the receiver as a reference point. In fact, whether it is the environment in which the sender is located or the environment in which the receiver is located, both can include the sender and the receiver. The environment can be used to assist in positioning the sender and the receiver. In addition to the sender and the receiver, the scene can also include obstacles.

[0120] The information used to indicate the environment is referred to as environment information. The environment information can also be referred to as parameter information of the environment, or parameter set information of the environment, etc., without limiting the name thereof. The environment information indicates the environment in which the sender or the receiver is located. The environment information indicates the obstacles in the environment. The environment information includes at least one of the number information, the position information, the shape information, or the material property information of the obstacles in the environment. The content of the obstacles can refer to the content of the obstacles discussed above, and the repeated parts will not be listed. Optionally, the environment information indicates at least one of the outline and material of the building / plant, the outline and position of the vehicle, the position of the pedestrian, or the distribution of the crowd.

[0121] The form of the environment information can be, for example, map information of the environment or point cloud information (such as two-dimensional, three-dimensional, or three-dimensional and above point cloud information) of the environment. The map indicated by the map information is, for example, a building map, which can contain the coordinates of multiple edges of a building, so as to be able to indicate the position, shape, and size of the obstacles in the environment, etc. The three-dimensional point cloud information, for example, includes a large number of points, each point contains a three-dimensional coordinate and other attributes, such as the material corresponding to the point.

[0122] 6. Reference signal (RS):

[0123] The reference signal can also be referred to as a pilot signal or a pilot. For example, the reference signal can be a kind of signal provided by a sending end to a receiving end for channel estimation, channel sounding, or data demodulation, etc. The reference signal includes an uplink reference signal and a downlink reference signal. The uplink reference signal is, for example, a demodulation reference signal (DMRS) and a sounding reference signal (SRS). The DMRS can include, for example, a DMRS for physical uplink control channel (PUCCH) demodulation (which can be referred to as DMRS for PUCCH for short) and a DMRS for physical uplink share channel (PUSCH) demodulation (which can be referred to as DMRS for PUSCH for short). The downlink reference signal is, for example, a channel state information-reference signal (CSI-RS), a cell-specific reference signal (C-RS / CRS), and a positioning reference signal (P-RS / PRS). There are various reference signals, and with the continuous evolution of standards, the names of the reference signals can change, and more reference signals can also appear. No specific limitation is made in this regard.

[0124] 7. Virtual station (VS):

[0125] A virtual station is used to assist positioning. A virtual station can be introduced on a certain NLOS path to assist positioning of other devices. A virtual station can be a virtual point or a virtual object. One virtual station corresponds to one NLOS path. The parameters of the LOS path between the virtual station and the transmitter or receiver corresponding to the virtual station of the NLOS path can be equal to the parameters of the NLOS path. For example, the virtual station corresponding to a certain NLOS path satisfies at least one of the following conditions: the distance between the virtual station and the transmitter or receiver is equal to the distance (or length, or transmission distance, etc.) of the NLOS path, the signal transmission delay between the virtual station and the transmitter or receiver is equal to the delay of the NLOS path, the angle between the virtual station and the transmitter or receiver is equal to the angle of the NLOS path, or the channel energy between the virtual station and the transmitter or receiver is equal to the energy of the NLOS path. A virtual station includes, for example, a virtual base station (VBS). In addition, a virtual station can be replaced by a virtual base station, a virtual reference station, a virtual point, a virtual reference point, a virtual object, or a virtual reference object, etc., without limitation to its name, etc.

[0126] 8、Position:

[0127] A position can be a relative position, for example, the position of a device can be the position of the device relative to another device. Alternatively, a position can be an absolute position, for example, the position of a device can be the geographic position of the device. The geographic position of a device includes, for example, the longitude and latitude of the device, and can also include the altitude, etc.

[0128] Since the positions of devices at different times can be different, in embodiments of the present application, the position of a device at a first time is referred to as an a priori position, and the position of the device after the first time (e.g., at a second time) is referred to as a current position. The first time is earlier than the second time. The current position is relative to the a priori position, and does not specifically refer to the position at this time (or now). For example, the current time is March 23, 2024, 12:00, and the historical time is March 22, 2024, 12:00, then the position of the device at the historical time is the a priori position, and the position of the device at March 22, 2024, 12:30 can also be considered as the current position relative to the a priori position.

[0129] 9、Ray tracing (RT) algorithm:

[0130] The ray tracing algorithm can be divided into two categories: forward ray tracing algorithm and backward ray tracing algorithm. The basic principle of the forward ray tracing algorithm is the shooting-and-bouncing ray (SBR) method, which can also be referred to as the shooting ray method.

[0131] A ray tracing algorithm is to simulate the propagation of electromagnetic wave by using rays. The basic principle of ray tracing algorithm is introduced as follows. A transmitting antenna is taken as a source point, and a large number of rays are emitted in a certain angle and / or resolution. Then, each ray is tracked, and if the ray encounters an obstacle, the phenomenon of reflection, transmission, diffraction or scattering occurs, and the propagation process of the ray is repeated until the end condition is met. The end condition usually includes at least one of the following: the ray intersects with a receiving sphere located at a receiving antenna, the ray exits a specific region, or the energy of the ray is lower than a threshold. The forward ray tracing algorithm includes the following steps 1 to 4, which are introduced as follows.

[0132] Step 1, initial ray bundle generation. For example, taking the position of the transmitting antenna as the starting point, U initial rays are generated according to the set horizontal and vertical angle range and angle resolution, where U is a positive integer.

[0133] Step 2, ray intersection detection. For example, the ith ray (0≤i≤U-1) is tracked, and it is determined whether the ith ray intersects with all objects in the propagation scene. If not, the process is ended in advance, and the tracking process of the next ray is started. If yes, the next step is performed. The ray intersection judgment is realized based on geometric calculation, such as the intersection algorithm of ray and polygon or triangle.

[0134] Step 3, intersection point calculation and new ray generation. For example, the intersection point of the ith ray and the nearest object is determined. According to different propagation mechanisms, new rays or ray bundles are generated. For example, if it is reflection, the outgoing direction of the ray is changed according to the reflection law, and the starting point is set as the position of the reflection point. If the transmission mode of the ray is diffraction, a diffraction ray bundle is generated according to the user-set diffraction angle interval, the starting points of which are the diffraction points on the edge and the included angle with the edge is the same. If the transmission mode of the ray is transmission, the direction of the ray does not need to be changed, and only the starting point is set as the transmission point. If the transmission mode of the ray is scattering, a scattering ray bundle with different directions is generated according to the user-set scattering range and angle resolution, the starting points of which are the scattering points, and the dot product of the propagation direction and the normal of the scattering surface is greater than 0. The new ray is continuously tracked until the end condition is met. If the ray intersects with the receiving sphere, step 4 is entered, otherwise the next ray is tracked, and steps 2 and 3 are repeated.

[0135] Step 4, ray field strength calculation and superposition. For example, the field strength carried by the current ray is calculated, and the vector is superimposed into the total field strength until the tracking process of all rays is completed. At this time, the forward ray tracing algorithm is completed, and the total field strength and the time delay, phase and angle of each effective ray are obtained.

[0136] The above-mentioned various terms can have other names, or other names can appear as the standards evolve, which are not specifically limited.

[0137] In various embodiments of the present application, the number of terms, unless otherwise specified, represents "a singular term or a plural term", that is, "one or more". "At least one" means one or more, and "multiple" means two or more. The association relationship of the associated objects described by "and / or" indicates that there can be three relationships, for example, A and / or B, which can represent the following cases: A exists alone, A and B exist together, B exists alone, where A and B can be singular or plural. The character " / " generally represents an "or" relationship between the associated objects before and after it. For example, A / B represents A or B. "At least one of the following" or the like means any combination of the items, including any combination of single item or multiple items. For example, at least one of a, b, or c means a, b, c, a and b, a and c, b and c, or a and b and c, where a, b, and c can be single or multiple.

[0138] In the embodiments of the present application, "indication" can include direct indication, indirect indication, display indication, and implicit indication. When describing that certain indication information is used to indicate A, it can be understood that the indication information carries A, directly indicates A, or indirectly indicates A. In the present application, the information indicated by the indication information is referred to as the to-be-indicated information. In the specific implementation process, there are many ways to indicate the to-be-indicated information, for example, but not limited to, the to-be-indicated information can be directly indicated, such as the to-be-indicated information itself or an index of the to-be-indicated information. The to-be-indicated information can also be indirectly indicated by indicating other information, where the other information and the to-be-indicated information have an association relationship. The to-be-indicated information can also be indicated only by a part of the to-be-indicated information, and the other part of the to-be-indicated information is known or agreed in advance. For example, the indication of a specific information can also be achieved by means of the arrangement order of various information agreed in advance (for example, a protocol), thereby reducing the indication overhead to a certain extent. In addition, the to-be-indicated information can be sent as a whole, or can be sent separately in multiple sub-information, and the sending period and / or sending time of these sub-information can be the same or different.

[0139] In the embodiments of the present application, "sending" and "receiving" represent the direction of signal transmission. For example, "sending information to XX" can be understood as that the destination of the information is XX, which can include direct sending through the air interface, and also includes indirect sending through the air interface by other units or modules. "Receiving information from YY" can be understood as that the source of the information is YY, which can include direct receiving from YY through the air interface, and also includes indirect receiving from YY through the air interface by other units or modules. "Sending" can also be understood as the "output" of the chip interface, and "receiving" can also be understood as the "input" of the chip interface. In other words, sending and receiving can be carried out between devices, for example, between network devices and terminal devices, or can be carried out within a device, for example, between components, between modules, between chips, between software modules or hardware modules in the device through a bus, a wire or an interface.

[0140] In addition, in the embodiments of the present application, the words such as "exemplarily", "for example", "such as", "optional", "possible implementation", "possible implementation" or "possible design" are used to represent examples, illustrations or descriptions. Any embodiment or design scheme described as "example" in the present application should not be interpreted as more preferred or more advantageous than other embodiments or design schemes. On the contrary, the word "example" is used to present the concept in a specific way. In the embodiments of the present application, "of", "corresponding / relevant" and "corresponding" can be used interchangeably at times, and it should be pointed out that when the difference is not emphasized, the meanings expressed are consistent.

[0141] Positioning technology can be applied in various services, such as positioning services or perception services. The positioning technology based on uplink time difference will be introduced in combination with the schematic diagram of the positioning method shown in FIG. 2.

[0142] S201, the LMF sends a positioning information request to a serving base station. The positioning information request is used to request to obtain information used for positioning, for example, configuration information of SRS. The serving base station refers to a base station currently serving the terminal device.

[0143] S202, the serving base station sends a positioning information response to the LMF. The positioning information response can carry the configuration information of SRS.

[0144] S203, the serving base station sends the configuration information of SRS to the terminal device.

[0145] S204, the LMF sends a measurement request to a neighboring base station. The measurement request is used to request the neighboring base station to measure the reference signal. The signal coverage range of the neighboring base station here includes the terminal device, and the neighboring base station is adjacent to the serving base station.

[0146] S205, the LMF sends a measurement request to the serving base station. The measurement request is used to request the neighbor base station to measure the reference signal.

[0147] S206, the terminal device sends the SRS to the serving base station. The terminal device sends the SRS based on the configuration information of the SRS.

[0148] S207, the terminal device sends the SRS to the neighbor base station. The terminal device sends the SRS based on the configuration information of the SRS.

[0149] S208, the serving base station sends the measurement information to the LMF. The measurement information includes the measurement result of the SRS measured by the serving base station, for example, includes the time at which the serving base station receives the SRS.

[0150] S209, the neighbor base station sends the measurement information to the LMF. The measurement information includes the measurement result of the SRS measured by the serving base station, for example, includes the time at which the neighbor base station receives the SRS.

[0151] S2010, the LMF calculates the position. The LMF can determine the position of the terminal device based on the measurement information sent by the serving base station, and the measurement information of the neighbor base station, etc.

[0152] Taking the serving base station as the base station 1, and the neighbor base stations including the base station 2 and the base station 3, the principle of the LMF calculating the position of the terminal device in FIG. 2 is introduced below in combination with the positioning principle diagram based on the uplink time difference shown in FIG. 3. In FIG. 3, the terminal device is located in the coverage range of the base station 1, the base station 2 and the base station 3. The position of the base station 1 is represented as (x1, y1), the position of the base station 2 is represented as (x2, y2), and the position of the base station 3 is represented as (x3, y3). The measurement signal sent by the base station 1 to the LMF includes the time at which the base station 1 receives the SRS. The measurement signal sent by the base station 2 to the LMF includes the time at which the base station 2 receives the SRS. The measurement signal sent by the base station 3 to the LMF includes the time at which the base station 3 receives the SRS. In this way, the LMF can determine the position of the terminal device based on the following formulas (1) and (2).

[0153] wherein (x UE , y UE ) represents the position of the terminal device, Δt 21 represents the difference between the time at which the base station 2 receives the SRS and the time at which the base station 1 receives the SRS, Δt 31 represents the difference between the time at which the base station 2 receives the SRS and the time at which the base station 1 receives the SRS, and c represents the speed of light.

[0154] In this way, the LMF can determine the position of the terminal device based on the positions of the base station 1, the base station 2 and the base station 3, and the measurement information from the base station 1, the base station 2 and the base station 3.

[0155] Therefore, under the positioning technology based on uplink time difference of arrival, distance / angle information of the terminal device and at least three base stations is required, so multi-cell / multi-site measurement is required. However, in the case of outdoor macro stations or satellite scenarios, due to the large coverage range of a single base station, the terminal device is often only within the coverage range of one or two base stations, and cannot complete multi-site positioning measurement, so it cannot be positioned.

[0156] Therefore, a positioning technology based on a virtual base station is proposed. The basic principle of the positioning technology based on the virtual base station is that time or angle measurement is performed on specific NLOS paths between the terminal device and the base station, and the position of the terminal device is determined by using trilateration or triangulation positioning technology.

[0157] Taking an obstacle as a reflector (specifically, a reflecting surface) as an example, there are multiple reflection paths between the terminal device and the base station. According to the law of specular reflection, the multiple reflection paths can be equivalent to the signals emitted by the virtual base station (VBS) of the base station mirror image with respect to the reflecting surface. For any reflection path, its distance can be equivalent to the LOS path from the VBS mirror image of the base station with respect to the reflecting surface to the terminal device. In theory, when positioning the terminal device, the position of the terminal device can be determined based on the positions of the VBS and the base station, and by using trilateration or triangulation positioning technology.

[0158] For example, refer to FIG. 4 for a schematic diagram of the principle of a positioning technology based on a VBS. As shown in FIG. 4, the position of the base station is mirror-symmetrical with respect to the position of the virtual base station 1 along the reflecting surface 1, and the position of the base station is mirror-symmetrical with respect to the position of the virtual base station 2 along the reflecting surface 2. The base station (i.e., the physical base station) and the terminal device include one LOS path and two reflection paths. The LOS path is the LOS path adc shown in FIG. 4, and the two reflection paths are the reflection path abc shown in FIG. 4 and the reflection path aec shown in FIG. 4. The virtual base station corresponding to the reflection path abc is, for example, the virtual base station 2. In this way, the base station can determine the position of the terminal device based on the position of the base station, the position of the virtual base station 1, the position of the virtual base station 2, the measurement information of the reflection path aec, the measurement information of the reflection path abc, and the measurement information of the LOS path adc. The formula for determining the position of the terminal device can also refer to the content of the foregoing formulas (1) and (2). In this case, the virtual base station 1 is equivalent to the base station 2 in the foregoing, and the virtual base station 2 is equivalent to the base station 3 in the foregoing. Alternatively, the position of the terminal device can also be determined by using the angle of arrival of the paths corresponding to the VBS and the BS. The position of the terminal device is the convergence point of the multiple AOA directions.

[0159] The positioning technology based on the virtual base station relies on a physical base station to achieve positioning, without relying on multiple base stations. However, this positioning technology has some requirements for NLOS paths. If a path that does not meet these requirements is used for positioning, the positioning accuracy will be poor.

[0160] Therefore, the embodiment of the present application provides an information transmission method. In the method, the third device can determine the transmission mode and / or the transmission order corresponding to the M paths, and send first information to the fourth device, and indicate the transmission mode and / or the transmission order corresponding to the M paths through the first information. In this way, the third device and the fourth device can determine some more specific information of the M paths. In this way, when the fourth device performs positioning, it can determine a path more suitable for positioning based on the first information, so as to improve the positioning accuracy.

[0161] The scheme provided by the embodiment of the present application is applicable to various communication systems. The various communication systems include, for example, a long term evolution (LTE) system, an LTE frequency division duplex (FDD) system, an LTE time division duplex (TDD) system, a fifth generation (5G) (such as a new radio (NR) system), a wireless local area network (WLAN) system, a satellite communication system, a side link (SL) communication system, a future evolved communication system, or a fusion system of multiple communication systems, without limitation. th The SL can also be referred to as a sidelink, a sidelink, a sidelink, a direct link, an edge link, or an auxiliary link, etc. The SL includes vehicle-to-everything (V2X) communication, etc. The V2X communication can include vehicle-to-vehicle (V2V) communication, vehicle-to-infrastructure (V2I) communication, vehicle-to-pedestrian (V2P) communication, vehicle-to-network (V2N) communication, etc., without specific limitation.

[0162] Next, the embodiment of the present application will be described in conjunction with the schematic diagram of the communication system to which the embodiment of the present application is applicable.

[0163] Please refer to FIG. 5, which is a schematic diagram of the architecture of a communication system provided by the embodiment of the present application. As shown in FIG. 5, the communication system includes a third device and a fourth device. Optionally, the communication device further includes a first device and / or a second device.

[0164] The apparatus (e.g., the first apparatus, the second apparatus, the third apparatus, or the fourth apparatus) involved in the embodiments of the present application can be one or more devices, a chip system (e.g., a chip) or other functional modules in the devices, or can be a component, etc. The embodiments of the present application do not make a specific limitation on the specific form of the apparatus. The other functional modules can be, for example, software modules, hardware modules, or hardware modules running software, etc. The apparatus can also be replaced by a device, an entity, a network element, a network entity, a communication device, a communication module, a node, or a communication node, etc. without making a specific limitation on the name thereof. The first apparatus, the second apparatus, the third apparatus, or the fourth apparatus, etc. involved in the various embodiments of the present application only shows the name of the apparatus, and does not limit the specific implementation form of the apparatus.

[0165] The first apparatus and the second apparatus can communicate with each other. The first apparatus can be any apparatus that needs to be positioned / sensed, or in other words, an apparatus to be positioned / sensed. The position of the second apparatus can be regarded as a reference apparatus for positioning the first apparatus, and the position of the second apparatus can be known. One of the first apparatus and the second apparatus can be an example of a sender of a reference signal, and the other of the first apparatus and the second apparatus can be an example of a receiver of the reference signal. The third apparatus and the fourth apparatus communicate with each other, the third apparatus can determine some information, and send the information to the fourth apparatus, so that the fourth apparatus can position / sense the first apparatus with the help of the information.

[0166] The implementation of each apparatus is exemplified below.

[0167] In a first possible design, the third apparatus is the same as the first apparatus. In other words, the third apparatus is integrated with the first apparatus.

[0168] For example, the first apparatus and the third apparatus are both terminal devices or modules in the terminal devices, and the second apparatus is a network device or a module in the network device. Or, the first apparatus and the third apparatus are both network devices or modules in the network devices, and the second apparatus is a terminal device or a module in the terminal device. The network device is, for example, an access network device or a core network device. The core network device is, for example, an existing network element in the core network, or an added network element in the core network, without making a specific limitation.

[0169] In a second possible design, the third apparatus is the same as the second apparatus. In other words, the third apparatus is integrated with the second apparatus.

[0170] For example, the second apparatus and the third apparatus are both terminal devices or modules in the terminal devices, and the first apparatus is a network device or a module in the network device. Or, the second apparatus and the third apparatus are both network devices or modules in the network devices, and the first apparatus is a terminal device or a module in the terminal device.

[0171] In a third possible design, the third device is another device other than the first device and the second device, which is not limited.

[0172] For example, one of the first device and the second device is one of a terminal device and an access network device, and the other of the first device and the second device is the other of the terminal device and the access network device. The third device is, for example, a core network device or a module in the core network device.

[0173] In addition, the fourth device is, for example, a core network device or a module in the core network device, which is, for example, an existing network element in the core network or a newly added network element in the core network, which is not limited.

[0174] The implementation of each device is exemplarily introduced below in combination with H1 to H9.

[0175] H1, the first device and the third device are terminal devices, the second device is an access network device, and the fourth device is an LMF, an SMF, an integrated result of the LMF and the SMF, or an SMC.

[0176] H2, the first device and the third device are access network devices, the second device is a terminal device, and the fourth device is an LMF, an SMF, an integrated result of the LMF and the SMF, or an SMC.

[0177] H3, the first device is a terminal device, the second device and the third device are access network devices, and the fourth device is an LMF, an SMF, an integrated result of the LMF and the SMF, or an SMC.

[0178] H4, the first device is a terminal device, the second device is an access network device, the third device is an AMF, and the fourth device is an LMF.

[0179] H5, the first device is an access network device, the second device is a terminal device, the third device is an AMF, and the fourth device is an LMF.

[0180] H6, the first device and the third device are both terminal devices, the second device is a DU, and the fourth device is a CU / RIC.

[0181] H7, the first device and the third device are both DUs, the second device is a terminal device, and the fourth device is a CU / RIC.

[0182] H8, the first device is a terminal device, the second device and the third device are both DUs, and the fourth device is a CU / RIC.

[0183] H9, the first device is a DU, the second device and the third device are both terminal devices, and the fourth device is a CU / RIC.

[0184] The above is an example of the implementation of each device, which does not actually limit the specific implementation (or form) of the device.

[0185] Optionally, the first device and the second device involved in the embodiments of the present application can be different devices, or can be the same device. In the case of the same first device and second device, the sender and the receiver of the signal can be considered to be the same party, that is, the sender of the signal is also the receiver of the signal. For example, the sender sends a signal, the signal is reflected by the obstacle 1 and the obstacle 2 to obtain a return signal, and the return signal is transmitted to the sender. The signal is reflected twice, so the propagation path is the reflection path, and the corresponding reflection order is 2. The return signal can also be referred to as the corresponding return signal of the signal. The corresponding return signal of the signal can be understood as a signal obtained by reflecting, refracting, diffracting, or scattering the reference signal by the obstacle.

[0186] Among them, the terminal device can access the communication system and has a corresponding communication function device or module. The terminal device can be considered as a kind of wireless transceiver device, which can be a fixed device, a mobile device, a handheld device, a wearable device, a vehicle-mounted device, or a wireless device (such as a communication module or chip system) built into the above device. The terminal device is usually provided with a communication module, circuit or chip for executing corresponding communication functions. The terminal device is also configured with program instructions for executing corresponding communication functions.

[0187] The terminal device is used to connect people, things, machines, etc., and can be widely used in various scenarios, such as, but not limited to, the following scenarios: cellular communication, device-to-device (D2D), vehicle to everything (V2X), machine-to-machine / machine-type communications (M2M / MTC), internet of things (IoT), virtual reality (VR), augmented reality (AR), industrial control, self driving, remote medical, smart grid, smart furniture, smart office, smart wear, smart transportation, smart city, unmanned aerial vehicle, robot, etc. For example, the terminal device is a mobile station (MS), a subscriber unit, a cellular phone, a smart phone, a wireless data card, a personal digital assistant (PDA) computer, a tablet computer, a wireless modem, a handset, a laptop computer, a machine type communication (MTC) terminal, a tag, a transport vehicle (such as a smart car) with wireless communication function, a communication module, a roadside unit (RSU) with terminal function, etc. The terminal device can also be referred to as user equipment (UE), a terminal, an access station, a UE station, a remote station, a wireless communication device, or a user device, etc.

[0188] The network device includes, for example, an access network device (or, an access network apparatus / access network network element), and / or a core network device (or, a core network apparatus / core network network element).

[0189] The access network device is a device with wireless transceiver function, used for communicating with the terminal device. The access network device includes but is not limited to the base station (BTS, Node B, eNodeB / eNB, or gNodeB / gNB), transmission reception point (TRP), base station of subsequent evolution of 3GPP, access node in wireless fidelity (WiFi) system, wireless relay node, wireless backhaul node, satellite or unmanned aerial vehicle, etc. in the communication system. The TRP can be a device or module located at the network side of the communication system and having corresponding communication function. The TRP is usually provided with a communication module, circuit or chip for performing corresponding communication function. The TRP is also provided with program instructions for performing corresponding communication function and corresponding program instructions. The base station can be a macro base station, micro base station, pico base station, small station, relay station, etc. Multiple base stations can support the network of the same access technology mentioned above, or support the network of different access technologies mentioned above. The base station can include one or more co-sited or non-co-sited transmission reception points. The access network device can also be a wireless controller in a cloud radio access network (C(R)AN) scenario, CU, also known as a convergence unit, and / or DU, etc. The access network device can also be a server, a wearable device, or a vehicle-mounted device, etc. For example, the access network device in V2X technology can be an RSU. The following describes the access network device as an example of a base station. Multiple access network devices in the communication system can be the same type of base station or different types of base stations. The base station can communicate with the terminal device, or communicate with the terminal device through the relay station. The terminal device can communicate with multiple base stations in different access technologies.

[0190] In the case that the access network device includes a CU and / or a DU. The CU and the DU can be understood as a division of the access network device from a logical function perspective. The CU and the DU can be physically separated or deployed together, and the embodiments of the present application do not make a specific limitation thereon. One CU can be connected with one DU, or multiple DUs can share one CU. The CU and the DU can be divided according to a protocol stack, and one possible way is to deploy a radio resource control (RRC), a service data adaptation protocol (SDAP), and a packet data convergence protocol (PDCP) layer in the CU, and deploy a radio link control (RLC) layer, a media access control (MAC) layer, and a physical layer in the DU. The embodiments of the present application do not completely limit the CU and the DU to be divided according to the above protocol stack, and other division manners can also be used, for example, division according to a service type.

[0191] The access network device in the embodiments of the present application can also refer to a central unit control plane (CU-CP) node or a central unit user plane (CU-UP) node, or include the CU-CP and the CU-UP. The CU-CP is responsible for control plane functions, mainly including an RRC and a packet data convergence protocol PDCP control plane (C) (which can be abbreviated as PDCP-C). The PDCP-C is mainly responsible for encryption and decryption of control plane data, integrity protection, data transmission, and the like. The CU-UP is responsible for user plane functions, mainly including an SDAP and a PDCP-U. The SDAP is mainly responsible for processing data of a core network and mapping a flow to a bearer. The PDCP-U is mainly responsible for encryption and decryption of a data plane, integrity protection, header compression, sequence number maintenance, data transmission, and the like.

[0192] In different systems, the CU (including CU-CP or CU-UP) or DU can also have different names, but those skilled in the art can understand their meanings. For example, in an open radio access network (O-RAN) system, the CU can also be referred to as an open central unit (O-CU), the DU can also be referred to as an O-DU, the CU-CP can also be referred to as an O-CU-CP, and the CU-UP can also be referred to as an O-CU-UP.

[0193] The core network device is configured to implement at least one of the following functions: mobile management, data processing, session management, policy and charging, etc. The names of devices implementing core network functions in systems of different access technologies can be different, and the embodiments of the present application do not limit this. Taking the 5G system as an example, the core network device includes: AMF, user plane function (UPF), or LMF, etc.

[0194] Please refer to FIG. 6A, which is a schematic diagram of a communication system applicable to the embodiments of the present application. FIG. 6A illustrates a terminal device, an access network and some core network elements. The access network includes one or more access network devices, for example, including a next generation (NG) eNB (i.e., ng-eNB) and / or a gNB. The ng-eNB is a base station of LTE, and the ng-eNB can include one or more transmission points (TPs). The gNB is a base station of NR, and the gNB can include one or more TRPs. The ng-eNB and the gNB can communicate with each other through an Xn interface. The core network elements illustrated in FIG. 6A include an AMF and an LMF. Optionally, FIG. 6A also illustrates an SMF, which is also deployed in the core network, i.e., belongs to the core network element.

[0195] The terminal device communicates with the access network through a Uu link, for example, the terminal device can communicate with the ng-eNB through an LTE-Uu, and communicate with the gNB through an NR-Uu link. The access network communicates with the AMF through an NG-C interface, and the AMF acts as a router for the access network to communicate with the LMF. The AMF communicates with the LMF through an NLs (such as NL1) interface.

[0196] One of the terminal device and the access network (such as the ng-eNB and / or the gNB) can be an implementation of the first device, and the other of the terminal device and the access network can be another implementation of the second device. The third device is, for example, the first device or the second device. The LMF can be an implementation of the fourth device.

[0197] In another possible implementation, the SMF and the LMF in FIG. 6A can be the same network element, or in other words, the SMF and the LMF can be integrated together. In this case, the fourth apparatus is, for example, the integrated result of the LMF and the SMF.

[0198] FIG. 6B is another schematic diagram of a communication system according to an embodiment of the present application. As shown in FIG. 6B, the communication system includes terminal devices, an access network (e.g., including a first access network device and a second access network device), and an SMC. The first access network device and the second access network device can communicate with each other through an Xn interface. The SMC is connected to the first access network device and the second access network device through an interface, respectively. The first access network device and the second access network device can also be connected to different SMCs, respectively. Optionally, the communication system further includes an SMF. When the communication system includes the SMF, the SMF is connected to the SMC, optionally.

[0199] The SMF shown in FIG. 6B is taken as an example of an implementation in which the user plane and the control plane of the SMF are not separated. In actual applications, the user plane and the control plane of the SMF can also be separated, for example, the SMC includes an SC-C and an SC-U, and the SMF includes an SF-C and an SF-U. The SC-C is connected to the SF-C, and the SC-U is connected to the SF-U, or only the SC-C and the SF-C are connected, which is not limited in the present application. Optionally, the SMC can include or can be replaced by a sensing control function (SCF).

[0200] In the communication system shown in FIG. 6B, the SMC can be directly connected to the SMF, or the SMC can be connected to the SMF through a UPF and an AMF, which is not limited in the present application. Optionally, the SMC belongs to the access network.

[0201] One of the terminal devices and the access network (e.g., the first access network device or the second access network device) involved in FIG. 6B can be taken as an implementation of the first apparatus, and the other of the terminal devices and the access network (e.g., the first access network device or the second access network device) can be taken as another implementation of the second apparatus. The third apparatus is, for example, the first apparatus or the second apparatus. The SMF or the SMC can be taken as an implementation of the fourth apparatus.

[0202] FIG. 6C is another schematic diagram of a communication system according to an embodiment of the present application. As shown in FIG. 6C, the communication system includes terminal devices, an access network (e.g., a first access network device and a second access network device), an AMF, and an SMF. The first access network device and the second access network device communicate with each other through an Xn interface. The SMC is deployed on or integrated in the first access network device. The first access network device and the second access network device can be connected to the AMF through an NG-C interface. Optionally, the communication system further includes the SMF. The second access network device is connected to the SMF through the AMF.

[0203] When the first access network device adopts the separated architecture of CU and DU, the SMC can be deployed or integrated on the CU or the DU, which is not limited in the present application.

[0204] One of the terminal device and the access network (such as the first access network device or the second access network device) involved in FIG. 6C can be an implementation of the first apparatus, and the other of the terminal device and the access network (such as the first access network device or the second access network device) can be another implementation of the second apparatus. The third apparatus is, for example, the first apparatus, the second apparatus or the AMF. The SMF, the SMC or the first access network device can be an implementation of the fourth apparatus.

[0205] Please refer to FIG. 7, which is a schematic diagram of an open architecture access network provided by an embodiment of the present application. The architecture includes a service management and orchestration framework (SMO), a Non-RT RIC, a Near-RT RIC, an O-CU, an O-DU, an open-RAN radio unit (O-RU) and an open-RAN cloud (O-Cloud), etc. The O-CU includes an open-RAN central unit control plane (O-CU-CP) and an open-RAN central unit user plane (O-CU-UP).

[0206] The functions of each part involved above will be introduced as follows.

[0207] 1. Non-RT RIC, used to implement non-real-time intelligent management of RAN functions. It can implement an artificial intelligence (AI) / machine learning (ML) workflow including model training and model updating, and guide the application / function in the Near-RT RIC based on policy. The Non-RT RIC is located in the SMO.

[0208] 2. Near-RT RIC, used to implement near-real-time intelligent management of RAN. Through data collection and related operations on the E2 interface, it realizes near-real-time control and optimization of modules and resources of O-RAN.

[0209] 3. O-CU, used to implement RRC layer, PDCP layer, and SDAP layer and other control functions in 3GPP standards.

[0210] 4. O-CU-CP, similar to CU-CP in NR system, for implementing the functions of RRC layer, and control plane functions of PDCP layer.

[0211] 5. O-CU-UP, similar to CU-UP in NR system, for implementing the functions of SDAP layer, and user plane functions of PDCP layer.

[0212] 6. O-DU, based on low-layer function split, for implementing RLC layer, MAC layer, and higher physical layer (Higher PHY) in 3GPP standard. The higher physical layer functions include one or more of the following: forward error correction (FEC) encoding / decoding, scrambling / descrambling, or modulation / demodulation.

[0213] 7. O-RU, based on low-layer function split, for implementing lower physical layer (Lower PHY) functions and radio frequency functions in 3GPP standard. The lower physical layer functions include one or more of the following: fast fourier transform (FFT) transform / inverse fast fourier transformation (iFFT) transform, digital beamforming, or extraction and filtering of physical random access channel (PRACH), etc. Similar to transmission reception point (TRP) or remote radio head (RRH) in 3GPP, but including low physical layer functions such as FFT / iFFT or PRACH extraction.

[0214] 8. O-Cloud, as a cloud computing platform, including physical infrastructure nodes for hosting O-RAN functions such as RIC, O-DU, etc.; supporting software components (such as operating system, virtual machine monitor, container runtime), management and orchestration functions.

[0215] The interfaces between the above-mentioned parts are described as follows.

[0216] The interface between the Non-RT RIC and the Near-RT RIC can be an A1 interface. The A1 interface is used for intelligent dynamic control of O-RAN internal wireless resources. The Non-RT RIC provides policies, rich information, and ML model updates, etc. to the Near-RT RIC through the A1 interface, and the Near-RT RIC provides policy feedback to the Non-RT RIC through the A1 interface.

[0217] The interface between the Near-RT RIC and the RAN node is an E2 interface. The E2 interface is an open interface between two endpoints. The RAN node includes, for example, a CU, a DU in 5G, an O-RAN compatible eNB in 4G, an O-CU (O-CU-CP and / or O-CU-UP) and / or an O-DU in O-RAN, etc. The RIC can obtain RAN node data collection and feedback through the E2 node, and the RAN node can obtain control feedback of the Near-RT RIC through the E2 node.

[0218] The interface between the management entity in the SMO and the O-RAN module is an O1 interface. The O1 interface is used for operation management, through which fault, configuration, accounting, performance, security (FCAPS) management, software management, and file management are realized. The interface between the SMO and the infrastructure management framework supporting the O-RAN virtual network function is an O2 interface.

[0219] Real-time control between the O-DU and the O-RU can be realized through a control plane (C-Plane / CP), for example, the control plane is used for the O-DU to transmit the weight value for beamforming to the O-RU, or for the O-DU to perform power control on the O-RU, etc. Transmission of communication data between the access network device and the terminal between the DU and the RU can be realized through a user plane (U-Plane / UP). The O-DU provides clock synchronization to the O-RU, which can be realized through a synthesis plane (S-Plane / SP). The control plane, the user plane, and the synchronization plane interface are, for example, an open fronthaul (O-F) C-Plane interface, or in other words, the open fronthaul (O-F) C-Plane interface includes the control plane C-Plane, the user plane U-Plane, and the synchronization plane S-Plane interface.

[0220] The interface between the NR RAN device (such as a base station, a CU, a CU-CP, or a CU-UP) and the NR core network is an NG interface. NG-u is a user plane NG interface, and NG-c is a control plane NG interface.

[0221] The interface between the NR RAN devices (such as a base station, a CU, a CU-CP or a CU-UP) is, for example, an Xn interface. Xn-u is a user plane Xn interface, and Xn-c is a control plane Xn interface.

[0222] The interface between the LTE RAN devices is an X2 interface. X2-u is a user plane X2 interface, and X2-c is a control plane X2 interface. In NR, the X2 interface is mainly used in evolved universal terrestrial radio access new radio dual connectivity (E-UTRA-NR DC / EN-DC) scenarios, in which a master station is an LTE RAN device, and the master station is connected to an LTE core network through an X2 interface.

[0223] The interface between the CU-CP and the CU-UP is an E1 interface. The interface between the CU-CP and the DU is an F1-C interface. The interface between the CU-UP and the DU is an F1-U interface.

[0224] Optionally, the terminal device involved in FIG. 7 can be an implementation manner of the first apparatus.

[0225] The O-CU can be an implementation manner of the second apparatus or the third apparatus, the Non-RT RIC and / or the Near-RT RIC can be an implementation manner of the fourth apparatus. Alternatively, the O-CU can be an implementation manner of the second apparatus or the third apparatus, and the Non-RT RIC can be an implementation manner of the fourth apparatus. Alternatively, the O-DU can be an implementation manner of the second apparatus or the third apparatus, and the O-CU can be an implementation manner of the fourth apparatus.

[0226] The above-mentioned FIG. 5, FIG. 6A, FIG. 6B, FIG. 6C or FIG. 7 is an example introduction to the communication system to which the embodiments of the present application are applied, and actually does not limit the communication system to which the embodiments of the present application can be applied.

[0227] The communication method provided by the embodiments of the present application is described below with reference to the accompanying drawings.

[0228] The steps represented by dashed lines in the drawings corresponding to various embodiments of the present application are optional steps. In addition, the first device involved in various embodiments of the present application is, for example, the first device involved in FIG. 5, the terminal device or the access network device involved in FIG. 6A, the terminal device or the access network device involved in FIG. 6B, the terminal device or the access network device involved in FIG. 6C, or the access network involved in FIG. 7, etc., the second device is, for example, the second device involved in FIG. 5, the access network device or the terminal device involved in FIG. 6A, the terminal device or the access network device involved in FIG. 6B, the terminal device or the access network device involved in FIG. 6C, or the access network involved in FIG. 7, etc., the third device is, for example, the third device involved in FIG. 5, the terminal device, the access network device, the AMF or the SMF, etc. involved in FIG. 6A, the terminal device or the access network device involved in FIG. 6B, the terminal device or the access network device involved in FIG. 6C, the O-CU or the O-DU involved in FIG. 7, or the CU or the DU, etc., the fourth device is, for example, the fourth device involved in FIG. 5, the SMF and / or the LMF involved in FIG. 6A, the SMC or the SMF involved in FIG. 6B, the SMF or the SMC or the first access network device involved in FIG. 6C, or at least one of the Non-RT RIC, the Near-RT RIC, the CU or the O-CU, etc. involved in FIG. 7. In addition, as the standard evolves, the name and / or function of the device or equipment may change, which is not limited.

[0229] Please refer to FIG. 8, which is an information transmission method provided by an embodiment of the present application. The following introduces each step involved in FIG. 8.

[0230] S801, the third device determines first information. The first information indicates the transmission mode and / or the transmission order corresponding to M paths respectively. M is a positive integer, for example, 1, 2 or 3, etc.

[0231] The first information may be carried in signal measurement information or other messages, for example, which is not limited. The following introduces the content of the first information.

[0232] The first information indicates the transmission mode and / or the transmission order corresponding to M paths respectively. For example, the first information indicates the information of the transmission mode corresponding to M paths respectively, and / or the information of the transmission order corresponding to M paths respectively. The information of the transmission mode corresponding to any path of the M paths indicates the transmission mode corresponding to the any path, and the transmission order corresponding to any path indicates the transmission order corresponding to the any path. Optionally, the transmission mode corresponding to the M paths is reflection, and the transmission order corresponding to the M paths is 1.

[0233] The following describes the relationship between the transmission modes and / or the transmission orders corresponding to the M paths when M is greater than 1.

[0234] A1, the transmission modes corresponding to the M paths are all the same, and the transmission orders corresponding to the M paths are all the same. In other words, the transmission modes corresponding to any two paths of the M paths are the same, and the transmission orders corresponding to any two paths are the same.

[0235] The transmission modes corresponding to any two paths can be the same in terms of the number of transmission modes and / or the type of transmission modes. The transmission orders corresponding to any two paths can be the same in terms of the number of transmission orders or the value of the transmission orders.

[0236] Optionally, the transmission orders corresponding to W paths of the M paths are all the same, and the transmission orders corresponding to the W paths are all the first transmission order. This can be alternatively described as the transmission orders corresponding to the W paths are all associated with (or correspond to) the first transmission order. W is an integer greater than or equal to 1. And / or, the transmission modes corresponding to X paths of the M paths are all the same, and the transmission modes corresponding to the X paths are all the first transmission mode. This can be alternatively described as the transmission modes corresponding to the X paths are all the first transmission mode. X is an integer greater than or equal to 1.

[0237] For example, the M paths include path 1 and path 2. The transmission modes corresponding to path 1 include reflection, refraction, and scattering. The transmission modes corresponding to path 2 include reflection, refraction, and scattering. Thus, the transmission modes corresponding to path 1 and path 2 are the same (i.e., both include reflection, refraction, and scattering), and the transmission orders are also the same (i.e., both are 3).

[0238] A2, the transmission modes corresponding to at least two paths of the M paths are different. The transmission modes corresponding to the two paths can be different in terms of the number of transmission modes and / or the type of transmission modes. Under A2, the transmission orders corresponding to any two paths of the M paths can be the same or different, which is not limited.

[0239] For example, the M paths include path 1, path 2, and path 3. The transmission modes corresponding to path 1 include reflection, refraction, and scattering. The transmission modes corresponding to path 2 include reflection and reflection, and the transmission modes corresponding to path 3 include reflection and reflection. Thus, the number of transmission modes corresponding to path 1 is different from the number of transmission modes corresponding to path 2, and the transmission orders are different. The number of transmission modes corresponding to path 1 is different from the number of transmission modes corresponding to path 3, and the transmission orders are different. The transmission modes corresponding to path 2 and path 3 are the same, and the transmission orders are the same.

[0240] A3, the transmission orders corresponding to at least two paths of the M paths are different. Under A3, the transmission modes corresponding to any two paths of the M paths can be the same or different, and no limitation is made in this regard.

[0241] The following takes one path (for example, referred to as a first path) of the M paths as an example, and the information of the transmission mode corresponding to the first path is exemplarily introduced in combination with the information shown in B1 or B2 described below. The first path can be any one of the M paths, and the first path can also be alternatively described as any path. The information of the transmission mode corresponding to other paths of the M paths can be referred to the information of the transmission mode corresponding to the first path, and is not listed one by one here.

[0242] B1, the information of the transmission mode corresponding to the first path includes information of the number and / or type of the transmission mode corresponding to the first path. B1 can be regarded as directly indicating the transmission mode corresponding to the first path as first information, or can be regarded as indicating the transmission mode corresponding to the first path in a hard indication manner.

[0243] In order to facilitate the indication of the type of the transmission mode, optionally, different transmission modes can be distinguished by different identifications. For example, the identification of reflection is 0, the identification of scattering is 1, and the like. The identification of the transmission mode can be preconfigured or predefined by a protocol, or can be determined by negotiation between the third device and the fourth device, or determined by the third device, and the like, and no specific limitation is made in this regard.

[0244] Optionally, in a case where the first information indicates the number of the transmission modes corresponding to the M paths respectively, and the number of the transmission modes corresponding to the first path is the same as the transmission order, the first information can not need to separately indicate the transmission orders corresponding to the M paths respectively, thereby reducing the number of bits occupied by the first information. Alternatively, the first information can further indicate the transmission orders corresponding to the M paths respectively, so that the transmission order of the path and the number of the transmission modes can be verified with each other, thereby guaranteeing the accuracy of the information.

[0245] B2, first probability information of the transmission mode corresponding to the first path. For example, the first probability information indicates the probability that the first path respectively belongs to S transmission modes. S is a positive integer, for example, S is 1, 2, 3, or 4, and the like. B2 can be regarded as soft indication of the transmission mode corresponding to the path. The probability involved in the embodiments of the present application can also be replaced by a likelihood or a scale factor, and the like.

[0246] Optionally, when the transmission order corresponding to the first path is greater than 1, the information of the transmission mode of the first path includes the probability that each order in the first path respectively belongs to S transmission modes. Alternatively, the information of the transmission mode of the first path includes the probability that the first path respectively belongs to U transmission modes. U can be a positive integer greater than or equal to S.

[0247] Example 1, the transmission order corresponding to the first path is one order, and the probability of the transmission mode corresponding to the first path can be {0.4, 0.3, 0.3}, that is, the first probability information indicates that the probabilities of the transmission mode corresponding to the first path belonging to reflection, scattering, and refraction are 0.4, 0.3, and 0.3, respectively.

[0248] Example 2, the transmission order corresponding to the first path is two orders, and the probability of the transmission mode corresponding to the first path includes: {0.6, 0.2, 0.2; 0.8, 0.1, 0.1}, that is, the first probability information indicates that the probabilities of the transmission mode corresponding to the first order of the first path belonging to reflection, scattering, and refraction are 0.6, 0.2, and 0.2, respectively, and the probabilities of the transmission mode corresponding to the second order belonging to reflection, scattering, and refraction are 0.8, 0.1, and 0.1, respectively.

[0249] Example 3, the transmission order corresponding to the first path is two orders, and the probability of the transmission mode corresponding to the first path includes: {0.48, 0.06, 0.06, 0.06, 0.16, 0.02, 0.02, 0.16, 0.02}, that is, the first probability information indicates that the probabilities of the first path belonging to reflection+reflection, reflection+scattering, reflection+diffraction, scattering+reflection, scattering+scattering, scattering+diffraction, diffraction+reflection, diffraction+scattering, and diffraction+diffraction are 0.48, 0.06, 0.06, 0.06, 0.16, 0.02, 0.02, 0.16, and 0.02, respectively.

[0250] In the case where M is greater than 1, the information content of the transmission mode corresponding to any two paths of the M paths can be the same or different, for example, the information of the transmission mode corresponding to one path of the M paths is, for example, the information shown in B1 described above, and the information of the transmission mode corresponding to another path of the M paths is, for example, the information shown in B2 described above, which is not specifically limited.

[0251] The following takes the first path of the M paths as an example, and the information content of the transmission order information is exemplarily introduced in combination with the information shown in C1 or C2 described below.

[0252] C1, the information of the transmission order corresponding to the first path includes, for example, the information of the value of the transmission order corresponding to the first path. C1 can be regarded as the first information directly indicating the transmission order corresponding to the first path. C1 can be regarded as hard indicating the transmission order corresponding to the path.

[0253] C2, the information of the transmission order corresponding to the first path includes, for example, the second probability information of the transmission order corresponding to the first path. For example, the second probability information indicates the probabilities of the first path belonging to W transmission orders. W is a positive integer, for example, W is 1, 2, 3, 4, or 5, etc. C2 can be regarded as soft indicating the transmission order corresponding to the path.

[0254] In the case that M is greater than 1, the information of the transmission order corresponding to any two paths of the M paths can be the same or different. For example, the information of the transmission order corresponding to one path of the M paths is, for example, the information shown in C1, and the information of the transmission order corresponding to another path of the M paths is, for example, the information shown in C2, which is not specifically limited.

[0255] In the case that the first information indicates the transmission mode and the transmission order corresponding to the first path respectively, the first information can include at least one of the combinations of at least one of B1 and B2 and at least one of C1 and C2. In addition, the first information can further include probability information (referred to as third probability information for ease of description) of the transmission mode and the transmission order corresponding to the first path. The first probability information of the transmission mode corresponding to the first path, the second probability information of the transmission order corresponding to the first path, and the third probability information of the transmission mode and the transmission order corresponding to the first path can be collectively referred to as probability information corresponding to the first path or probability information of the first path. Correspondingly, the probability of the transmission mode corresponding to the first path, the probability of the transmission order corresponding to the first path, and the probability of the transmission mode and the transmission order corresponding to the first path can be collectively referred to as the probability of the first path or the probability corresponding to the first path.

[0256] The third probability information indicates the probability of the transmission mode and the transmission order corresponding to the first path, for example, the third probability information can be determined based on the probability of the transmission mode corresponding to the first path and the probability of the transmission order corresponding to the first path, and specifically, the third probability information indicates the joint probability of the probability of the transmission mode corresponding to the first path and the probability of the transmission order corresponding to the first path.

[0257] By analogy, the first information can indicate the transmission mode and the transmission order corresponding to the M paths respectively.

[0258] The content of the first information is exemplarily introduced as follows. For example, the first information can include the content of at least one of D1 to D5.

[0259] D1, the first information respectively indicates the transmission mode and the transmission order corresponding to each path of the M paths. In other words, the first information includes information of the transmission mode and the transmission order corresponding to each path of the M paths. That is, the first information shown in D1 reports the transmission mode and the transmission order corresponding to the path in units of paths.

[0260] The information of the transmission mode corresponding to any of the M paths can refer to the content of B1 or B2, and the information of the transmission order can refer to the content of C1 or C2. In addition, optionally, the information of the transmission mode and the transmission order corresponding to any of the paths can also be the third probability information corresponding to any of the paths. The content of the third probability information can refer to the content of the third probability information, and the repeated part will not be listed.

[0261] For example, the probabilities of path 1 to path 6 being first-order reflection, first-order scattering, first-order diffraction, second-order reflection, second-order scattering, and second-order diffraction are 0.7, 0.1, 0.09, 0.2, 0.05, 0.14, and 0.01, respectively. Then the first information can indicate that the probabilities of path 1 to path 6 being first-order reflection, first-order scattering, first-order diffraction, second-order reflection, second-order scattering, and second-order diffraction are {0.7, 0.1, 0.09, 0.2, 0.05, 0.14, 0.01}. Alternatively, the first information can indicate {0.7, 0.1, 0.09, 0.2, 0.05, 0.14, 0.01}, and the transmission mode and the transmission order corresponding to the paths indicated by these probability values can be agreed by the third device and the fourth device or specified by a protocol.

[0262] In a possible design, the transmission mode and the transmission order of any of the paths can be regarded as a combination, and the M paths correspond to M combinations respectively, and the M combinations can correspond to M identifiers. In this way, the first information can carry the identifiers of the M combinations, which is equivalent to indicating the transmission mode and the transmission order corresponding to the M paths respectively. In this way, the content of the first information is simplified, and the number of bits occupied by the first information is reduced.

[0263] The identifier of any of the M combinations can be pre-defined or pre-configured by a protocol, or configured by the third device, or determined by negotiation between the fourth device and the third device, or configured by the fourth device to the third device, and no specific limitation is made.

[0264] For example, the M paths include 6 paths, and the 6 combinations corresponding to the M paths are first-order reflection, first-order scattering, first-order diffraction, second-order reflection, second-order scattering, and second-order diffraction respectively. The identifiers of the 6 combinations can be 0 to 5 respectively. In this way, the first information can indicate the identifiers of the combinations corresponding to the paths, that is, indicate {0, 1, 2, 3, 4, 5}.

[0265] D2, the first information indicates the transmission mode corresponding to the M paths respectively, and the transmission order corresponding to the M paths respectively. This can be replaced by description that the first information includes the information of the transmission mode corresponding to the M paths respectively, and the information of the transmission order corresponding to the M paths respectively.

[0266] For example, the first information includes a first field and a second field, the first field carries information of transmission modes corresponding to the M paths respectively, and the second field carries information of transmission orders corresponding to the M paths respectively. Optionally, the order of the information of transmission modes corresponding to the M paths respectively carried by the first field is the same as the order of the information of transmission orders corresponding to the M paths respectively carried by the second field. As long as the third device and the fourth device can reach a consensus on the order of the M paths indicated by the first field and the second field.

[0267] For example, the M paths include path 1, path 2 and path 3. The transmission mode of the path 1 is reflection, and the transmission order is 1. The transmission mode of the path 2 is scattering, and the transmission order is 2. The transmission mode of the path 3 is reflection and refraction, and the transmission order is 2. In this example, the first information can indicate the transmission modes corresponding to the path 1, the path 2 and the path 3 in turn, specifically {reflection, scattering + scattering, reflection + refraction}, and indicate the transmission orders of the path 1, the path 2 and the path 3 in turn, specifically {1, 2, 2}.

[0268] D3, the first information indicates the transmission mode corresponding to at least one path associated with each of the P transmission orders. It can be alternatively described that the first information indicates information of the transmission mode corresponding to at least one path associated with each of the P transmission orders. Or it can be described that the first information includes information of a first correspondence relationship, the first correspondence relationship representing a correspondence relationship between the P transmission orders and the transmission modes corresponding to the M paths. In the first correspondence relationship, any one of the P transmission orders is associated with the transmission modes corresponding to the paths whose transmission orders are all the any one of the P transmission orders. P is a positive integer, for example, 1, 2 or 3, and the value thereof is not limited.

[0269] Under D3, any one of the P transmission orders (such as a first transmission order) is associated with (or corresponds to) one or more transmission modes, in other words, the transmission modes corresponding to W paths of the M paths are all associated with the first transmission order, and W is an integer greater than or equal to 1. The P transmission orders are the union set of the transmission orders corresponding to the M paths respectively. That is, the transmission orders corresponding to the M paths respectively can be a set, that is, including M sets, and the P transmission orders can be the union set of the M sets. The at least one path associated with one of the P transmission orders includes the paths of the M paths whose transmission orders are the one of the P transmission orders.

[0270] In example 1, the M paths include path 1, path 2, path 3, path 4, path 5, path 6 and path 7. Path 1 corresponds to a transmission order of 1 and a transmission mode including reflection, path 2 corresponds to a transmission order of 1 and a transmission mode including scattering, and path 3 corresponds to a transmission order of 1 and a transmission mode including diffraction. Path 4 corresponds to a transmission order of 2 and a transmission mode including reflection. Path 5 corresponds to a transmission order of 2 and a transmission mode including scattering. Path 6 corresponds to a transmission order of 2 and a transmission mode including diffraction. Path 7 corresponds to a transmission order of 2 and a transmission mode including reflection and scattering. In this example, the first information can indicate {first order: reflection, scattering, diffraction} and {second order: reflection, scattering, diffraction, reflection+scattering}. Alternatively, the first correspondence relationship can be considered to indicate that a first order path corresponds to reflection, scattering and diffraction, and a second order path corresponds to reflection, scattering, diffraction and reflection+scattering.

[0271] In example 2, the M paths include path 1 and path 2. Path 1 corresponds to a transmission order of 1 and probabilities of the transmission mode belonging to reflection, scattering and diffraction are 0.5, 0.2 and 0.3 respectively. Path 2 corresponds to a transmission order of 1 and probabilities of the transmission mode belonging to reflection, scattering and diffraction are 0.8, 0.1 and 0.1 respectively. In this example, the first information can indicate probabilities of first order path 1 and first order path 2 belonging to reflection, scattering and diffraction respectively {first order: 0.5, 0.2, 0.3; 0.8, 0.1, 0.1}. Alternatively, the first correspondence relationship can be considered to indicate that a first order path corresponds to reflection, scattering and diffraction.

[0272] D4, information of the transmission order corresponding to at least one path associated with each of the Q transmission modes. Alternatively, the first information can be described as indicating information of the transmission order corresponding to at least one path associated with each of the Q transmission modes. Or it can be described as including information of a second correspondence relationship, the second correspondence relationship indicating a correspondence relationship between the Q transmission modes and the transmission orders corresponding to the M paths. In the second correspondence relationship, any one of the Q transmission modes is associated with the transmission order corresponding to the path whose transmission mode is the any one of the Q transmission modes. Q is a positive integer, for example, 1, 2, 3, 4, 5 or 6, and the value thereof is not specifically limited.

[0273] Under D4, any one of the Q transmission modes (e.g., the first transmission mode) is associated with (or corresponds to) one or more transmission orders, in other words, the X paths of the M paths correspond to the first transmission mode, and W is an integer greater than or equal to 1. The Q transmission modes are the union of the transmission modes corresponding to the M paths. That is, the transmission modes corresponding to the M paths can be regarded as a set, that is, there are M sets, and the Q transmission modes can be the union of the M sets. At least one path associated with one of the Q transmission modes includes a path of the M paths with the transmission order of the one transmission order.

[0274] Example 1: The M paths include path 1, path 2, path 3, path 4, path 5, path 6, and path 7. Path 1 corresponds to a transmission order of 1 and a transmission mode including reflection, path 2 corresponds to a transmission order of 1 and a transmission mode including scattering, and path 3 corresponds to a transmission order of 1 and a transmission mode including diffraction. Path 4 corresponds to a transmission order of 2 and a transmission mode including reflection. Path 5 corresponds to a transmission order of 2 and a transmission mode including scattering. Path 6 corresponds to a transmission order of 2 and a transmission mode including diffraction. Path 7 corresponds to a transmission order of 2 and a transmission mode including reflection and scattering. In this example, the first information can indicate {reflection: 1, 2; scattering: 1, 2; diffraction: 1, 2; reflection + scattering: 2}. Alternatively, the second correspondence can be regarded as indicating that the reflection path corresponds to the transmission orders 1 and 2, the scattering path corresponds to the transmission orders 1 and 2, the diffraction path corresponds to the transmission orders 1 and 2, and the reflection + scattering path corresponds to the transmission order 2.

[0275] Example 2: The M paths include path 1 and path 2. Path 1 corresponds to a transmission mode of reflection and probabilities of transmission orders of 1 and 2 are 0.6 and 0.4, respectively, and path 2 corresponds to a transmission mode of reflection and probabilities of transmission orders of 1 and 2 are 0.5 and 0.5, respectively. In this example, the first information can indicate {reflection: 0.6 first order, 0.4 second order; 0.5 first order, 0.5 second order} or {reflection: 0.6 first order, 0.5 first order; 0.4 second order, 0.5 second order}. Alternatively, the first information can indicate {0.6, 0.4; 0.5, 0.5} or {reflection: 0.6, 0.5; 0.4, 0.5}, and the transmission mode and transmission order corresponding to the path indicated by these probability values can be agreed upon by the third device and the fourth device or specified by a protocol.

[0276] D5: Information indicating that the transmission mode and / or transmission order of each path of the M paths satisfies a condition or information indicating that the transmission mode and / or transmission order of each path of the M paths does not satisfy the condition. The condition that the transmission mode and / or transmission order of each path of the M paths satisfies or does not satisfy can be referred to as the condition corresponding to each path.

[0277] The condition indicates a condition corresponding to the transmission mode and / or the transmission order of the path. In other words, what requirement should be met by the transmission mode and / or the transmission order of the path. The condition can be determined by the fourth device, or determined by the third device and the fourth device in negotiation, or configured by a protocol, and no specific limitation is made. For example, the condition indicates that the transmission mode of the path belongs to a specific transmission mode, and / or the transmission order of the path meets a specific transmission order. The specific transmission mode can be one or more transmission modes, for example, reflection, for example, reflection + reflection, or reflection + reflection and refraction + reflection, and the specific transmission order can also be one or more transmission orders, for example, first order, or second order, or first order and second order.

[0278] The conditions corresponding to any two paths of the M paths can be the same or different. The conditions corresponding to the M paths can be determined by the third device and the fourth device in negotiation, or indicated by the fourth device to the third device, or specified by a protocol, and no specific limitation is made. In this way, the third device can determine whether the M paths meet the corresponding conditions according to the conditions, so as to indicate to the fourth device whether the M paths meet the conditions respectively. In this way, the information reporting amount of the third device can be reduced.

[0279] Optionally, the value of a bit in the first information is a first value, and the first value indicates that the path corresponding to the bit meets the condition; the value of the bit is a second value, and the second value indicates that the path corresponding to the bit does not meet the condition. Optionally, one of the first value and the second value is 0, and the other is 1.

[0280] For example, the M paths include six paths: path 1, path 2, path 3, path 4, path 5 and path 6, path 1 is first order reflection, path 2 is first order scattering, path 3 is second order reflection + scattering, and the conditions corresponding to the six paths are first order reflection, first order scattering, first order diffraction, second order reflection, second order scattering and second order diffraction respectively.

[0281] If path 1 is first order reflection, path 1 meets the condition, and if path 1 is not first order reflection, path 1 does not meet the condition. If path 2 is first order scattering, path 2 meets the condition, and vice versa. By analogy. For example, the first information includes 011100, which indicates that path 1 does not meet the condition, paths 2 to 4 meet the condition, and paths 5 and 6 do not meet the condition.

[0282] The third device can send the first information, which indicates that path 1 meets the condition, path 2 meets the condition, and path 3 does not meet the condition.

[0283] In a possible implementation, no matter how the first information indicates the transmission manner and / or the transmission type corresponding to each of the M paths, the transmission manner and the transmission order of a certain path can not uniquely represent the certain path, and thus the first information can further indicate the M paths, any path in the M paths can be identified by a parameter corresponding to the path, or any path can be identified by an identifier (which can also be referred to as a sequence number, an index, or the like) of a reference signal corresponding to the parameter of the path (which can also be referred to as a reference signal corresponding to any path), or the third device and the fourth device can negotiate to configure an identifier (which can also be referred to as a number, a sequence number, or an index, or the like) of the path, or the protocol can agree on the identifier of the path. The reference signal corresponding to the parameter of any path can be a reference signal used to determine or measure the parameter of any path.

[0284] For example, the M paths include a path 1 and a path 2, the transmission manner of the path 1 is reflection, the transmission order is 1, the parameter corresponding to the path 1 is an angle of departure 80° and a time delay 60 s, and the identifier of the reference signal corresponding to the path 1 is 1. The transmission manner of the path 2 is diffraction, the transmission order is 2, the parameter corresponding to the path 2 is an angle of departure 100° and a time delay 70 ns, and the identifier of the reference signal corresponding to the path 2 is 2.

[0285] In this example, the first information can indicate {80, 60, reflection, 1; 100, 70, diffraction, 2}, the first information indicates that the transmission manner of the path (that is, the path 1) with the angle of departure 80° and the time delay 60 s is reflection and the transmission order is 1, and the transmission manner of the path (that is, the path 2) with the angle of departure 100° and the time delay 70 ns is diffraction and the transmission order is 2. The first information can indicate {1, reflection, 1; 2, diffraction, 2}, the first information indicates that the transmission manner of the reference signal with the identifier 1 (that is, the path 1) is reflection and the transmission order is 1, and the transmission manner of the reference signal with the identifier 2 (that is, the path 2) is diffraction and the transmission order is 2.

[0286] In a possible implementation, the first information can further indicate a third path. The third path is, for example, a LOS path. The first information indicates, for example, the transmission manner and / or the transmission order of the third path. The content of the third path can refer to the content described above, which is not listed here.

[0287] The above describes some content of the first information, and the following describes a manner in which the third device determines the third information.

[0288] The third device can obtain the first information from another device (such as the first device or the second device, or the like), and thus the third device determines the first information. Alternatively, the third device can determine the first information by itself. The following describes an example of a manner in which the third device determines the first information by itself.

[0289] Exemplarily, the third device can determine the first information according to the fifth information and the environment information. The fifth information indicates parameters corresponding to the M paths respectively. The parameter corresponding to any path in the M paths can refer to the parameter of the path discussed in the foregoing, and the repeated part will not be listed.

[0290] The third device can measure the reference signal to obtain the fifth information, which is applicable to the case that the third device is the first device or the second device. Alternatively, the third device can obtain the fifth information from other devices (such as the first device or the second device), which is not limited here.

[0291] In the embodiments of the present application, the environment information indicating the environment where the first device and / or the second device is located is taken as an example for introduction. The environment information can be pre-stored in the third device or received by the third device from other devices, such as the first device, the second device or the SMF, which is not limited here.

[0292] Exemplarily, the third device simulates the environment based on the environment information. The third device can track the R paths between the first device and the second device in the simulated environment based on the parameters of the M paths, and determine the information of the transmission mode and / or the information of the transmission order corresponding to the R paths respectively. The information of the transmission mode corresponding to any path in the R paths is, for example, the content shown in B1 and / or B2 in the foregoing. And the information of the transmission order corresponding to any path in the R paths is, for example, the content shown in C1 and / or C2 in the foregoing. Optionally, the information of the transmission mode and the information of the transmission order corresponding to any path in the R paths can be the third probability information of the any path. R can be greater than or equal to M. R is a positive integer, for example, R is 1, 2, 3, etc., which is not limited here.

[0293] For example, the value of R is 21, and the R paths include, for example, 2 first-order reflection paths, 3 first-order diffraction paths, 10 first-order scattering paths, 1 second-order diffraction path, and 5 second-order scattering paths.

[0294] The third device determines the paths respectively matched with the M paths from the R paths to obtain the first information. Taking the case that the first path in the M paths is matched with any path (referred to as the second path) in the R paths as an example, the transmission mode corresponding to the first path is the transmission mode corresponding to the second path, and the transmission order corresponding to the first path is the transmission order corresponding to the second path. The following takes the first path and the second path as an example to introduce the content of path matching.

[0295] If the parameter of the first path matches the parameter of the second path, it means that the first path is matched with the second path. Alternatively, if the parameter of the first path does not match the parameter of the second path, it means that the first path is not matched with the second path.

[0296] In one possible case, the parameter of the first path and the parameter of the second path both include a type of parameter (e.g., time delay, angle, or other).

[0297] If the difference between the parameter of the first path and the parameter of the second path is less than or equal to a first threshold, it indicates that the parameter of the first path and the parameter of the second path match; if the difference between the parameter of the first path and the parameter of the second path is greater than the first threshold, it indicates that the parameter of the first path and the parameter of the second path do not match. Alternatively, if the difference between the parameter of the first path and the parameter of the second path is smaller than the difference between the parameter of the first path and the parameter of any other path of the M paths, it indicates that the parameter of the first path and the parameter of the second path match; if the difference between the parameter of the first path and the parameter of the second path is greater than the difference between the parameter of the first path and the parameter of any other path of the M paths, it indicates that the parameter of the first path and the parameter of the second path do not match.

[0298] In another possible case, the parameter of the first path and the parameter of the second path both include G types of parameters (e.g., time delay, angle, or other), where G is an integer greater than 1.

[0299] If the difference between any type of parameter of the first path and the parameter of the second path is less than or equal to a threshold corresponding to the type of parameter, it indicates that the parameter of the first path and the parameter of the second path match; if the difference between the parameter of the first path and the parameter of the second path is greater than the threshold corresponding to the type of parameter, it indicates that the first path and the second path do not match. The thresholds corresponding to two types of parameters of the G types of parameters can be the same or different, which is not specifically limited.

[0300] For example, if the difference between the first type of parameter of the first path and the first type of parameter of the second path is less than or equal to a first threshold, the difference between the second type of parameter of the first path and the second type of parameter of the second path is less than or equal to a second threshold, and so on, and the difference between the Gth type of parameter of the first path and the Gth type of parameter of the second path is less than or equal to a Gth threshold, it indicates that the parameter of the first path and the parameter of the second path match; if the difference between the first type of parameter of the first path and the first type of parameter of the second path is greater than the first threshold, it indicates that the parameter of the first path and the parameter of the second path do not match.

[0301] Optionally, in matching the path, in addition to considering the parameter of the path, the prior position of the first device can also be considered. For example, the distance between the end point or the start point of the first path and the prior position of the first device is less than or equal to a first distance. The first distance can be predefined, or can be determined according to the speed of the first device. For example, the greater the speed of the first device, the greater the first distance; the smaller the speed of the first device, the smaller the first distance. In this way, the accuracy of the matched path is further ensured.

[0302] Of course, there are many ways to determine that two paths match, and embodiments of the present application do not limit the ways.

[0303] In the case where the first information indicates probability information corresponding to the M paths (such as at least one of the first probability information, the second probability information, or the third probability information), the third device needs to determine probability information of a path (such as the second path) corresponding to the first path among the R paths, to obtain the probability information of the second path. For example, the probability information of the second path indicates a probability that the second path is the first path, or a probability that the second path matches the first path.

[0304] For example, the probability information of the second path indicates a probability of a transmission mode corresponding to the second path, which can also be understood as a probability that a transmission mode corresponding to the first path is a transmission mode corresponding to the second path. For another example, the probability information of the second path indicates a transmission order corresponding to the second path, which can also be understood as a probability that a transmission order corresponding to the first path is a transmission order corresponding to the second path. For another example, the probability information of the second path indicates a probability of a transmission mode and a transmission type corresponding to the second path, which can also be understood as a probability that a transmission mode and a transmission order corresponding to the first path is a transmission mode and a transmission order corresponding to the second path.

[0305] The following describes an example of determining the probability information of the second path.

[0306] For example, the third device can determine the probability corresponding to the second path according to a distance between an end point of the second path and the prior position of the first device, and / or a total number of the L paths. The probability of the second path includes at least one of a probability of a transmission mode corresponding to the second path, a probability of a transmission order corresponding to the second path, or a probability of a transmission mode and a transmission order corresponding to the second path. The L paths are paths generated based on the parameters of the first path among the R paths, and the L paths are part or all of the R paths.

[0307] In a first way, the first distance and the probability of the second path are inversely related. In other words, the smaller the first distance, the greater the probability of the second path, and the greater the first distance, the smaller the probability of the second path. The first distance is a distance between the end point of the second path and the prior position of the first device.

[0308] For example, the distance between the end point of the second path and the prior position of the first device is x meters, and the probability of determining the transmission mode and the transmission order corresponding to the second path is 90%. x is a positive number. The distance between the end point of the second path and the prior position of the first device is x+n meters, and the probability of determining the transmission mode and the transmission order corresponding to the second path is 80%. n is a positive number. The distance between the end point of the second path and the prior position of the first device is x+2n meters, and the probability of determining the transmission mode and the transmission order corresponding to the second path is 70%.

[0309] In mode two, the probability of the second path belonging to the first transmission mode is the ratio of the fourth probability and the fifth probability. The fourth probability is the probability of L paths belonging to the first transmission mode. The fifth probability is the sum of the probabilities of L paths belonging to real paths. The first transmission mode is any transmission mode.

[0310] Similarly, the probability of the second path belonging to the first transmission order is the ratio of the sixth probability and the fifth probability. The sixth probability is the probability of L paths belonging to the first transmission order. The fifth probability can refer to the content of the fifth probability mentioned above. The first transmission order is any transmission order.

[0311] Similarly, the probability of the second path belonging to the first transmission mode and the first transmission order is the ratio of the seventh probability and the eighth probability. The seventh probability is the sum of the probabilities of L paths belonging to the first transmission mode and the first transmission order. The eighth probability is the sum of the probabilities of L paths belonging to various transmission modes and transmission orders.

[0312] For example, the information of the transmission mode and the information of the transmission order corresponding to the L paths corresponding to the second path can refer to the following Table 1.

[0313] Table 1

[0314] As shown in Table 1 above, the probability of the transmission order corresponding to the second path being one order is the ratio between the probability of L paths belonging to one order and the sum of the probabilities of L paths belonging to real paths (i.e. the fifth probability), that is, specifically: (90%+80%) / (35%+30%+25%+90%+80%) = 65.3%. Similarly, the third device can determine that the probability of the transmission order corresponding to the second path being two orders is 34.7%.

[0315] When the transmission order corresponding to the second path is 1, the transmission type of the second path includes reflection and scattering, the probability that the transmission order corresponding to the second path is one order and the transmission mode corresponding to the second path is reflection is 90% / (90%+80%) = 52.9%. Similarly, the probability that the transmission order corresponding to the second path is one order and the transmission mode corresponding to the second path is scattering is 80% / (90%+80%) = 47.1%.

[0316] When the transmission order corresponding to the second path is 2, the probability that the first order transmission mode of the second path is reflection is (35%+30%) / (35%+30%+25%) = 72.2%. Similarly, the probability that the first order transmission mode of the second path is scattering is 25% / (35%+30%+25%) = 27.8%. Similarly, the probability that the second order transmission mode of the second path is reflection is (35%+25%) / (35%+30%+25%) = 66.7%, and the probability that the second order transmission mode of the second path is scattering is 30% / (35%+30%+25%) = 33.3%.

[0317] The above is an example of determining the probability corresponding to the second path. In fact, there are many ways to determine the probability corresponding to the second path, which are not limited.

[0318] The process of determining the transmission mode and transmission order of the first path will be described below with reference to the process diagram of path matching shown in FIG. 9.

[0319] In FIG. 9, the parameters of the first path include a horizontal reach angle (such as 60°), a vertical reach angle (such as 120°), a time delay (such as 160 ns), and energy (such as -105 decibel-milliwatts (dBm)), the first device is a terminal device, and the second device is an access network device.

[0320] As shown in (1) of FIG. 9, the prior position of the terminal device is located at point j, and the current position of the access network device is located at point a.

[0321] As shown in (2) of FIG. 9, the third device can generate an initial ray based on the horizontal reach angle, the vertical reach angle of the first path, and the current position of the second device. The third device uses the forward RT algorithm and the time delay to find R paths that exist. For example, the R paths include five paths, specifically, path ak, path abc, path ade, path afg, and path ahi, and the energies of the five paths are -70 dBm, -90 dBm, -100 dBm, -120 dBm, and -130 dBm, respectively. Path ak is a LOS path, that is, the transmission order is 0. Path abc is a one-order reflection path. Path ade is a one-order reflection path. Path afg is a one-order reflection path. Path ahi is a one-order refraction path.

[0322] The third device can determine at least one path of the R paths that matches the parameter of the first path, in combination with the prior position of the first device. The third device determines a second path from the at least one path, which has a distance between the third device and the prior position of the first device less than or equal to the first distance. The second path is, for example, path ade.

[0323] In a possible design, the third device receives the second information, for example, from the fourth device.

[0324] In a possible implementation, the second information indicates information about paths that satisfy a condition. The condition indicates a condition that a transmission manner and / or a transmission order corresponding to the paths satisfy. In this implementation, the third device can determine the transmission manner and the transmission order corresponding to the paths that satisfy the condition. In this case, the transmission manner and / or the transmission order corresponding to the M paths satisfy the condition.

[0325] In another possible implementation, the second information indicates information about whether the paths satisfy a condition, for example, the second information indicates whether the paths are, in sequence, first-order reflection, first-order scattering, first-order diffraction, second-order reflection, second-order scattering, second-order diffraction, etc. The content of the condition can refer to the content of the condition discussed at D5 above, which is not listed here. In this implementation, the third device can report, in the first information, whether the M paths satisfy the corresponding conditions, which can relatively reduce the reporting amount.

[0326] In a case where the first information is determined before the third device, or the first information is obtained by the third device from another device, or the first information is pre-stored in the third device, the third device can not need to perform the step in S801, i.e., S801 can be an optional step in some cases.

[0327] S802. The third device sends the first information to the fourth device. Correspondingly, the fourth device receives the first information from the third device.

[0328] To ensure that the third device can successfully send or determine the first information, the third device sends fourth information to the fourth device. The fourth information indicates the capability of the third device, and the capability of the third device includes a transmission manner and / or a transmission order supported by the third device. The capability of the third device can also include other capabilities of the third device, for example, the capability of the third device to measure parameters corresponding to the paths, which is not limited in this regard.

[0329] The transmission mode supported by the third device can be understood as the capability of judging, determining or reporting a specific transmission mode, or the capability of judging, determining or reporting multiple transmission modes. The transmission order supported by the third device can be understood as the capability of judging, determining or reporting a specific transmission order, or the capability of judging, determining or reporting multiple transmission orders.

[0330] Alternatively, the third information is received from the fourth device before the fourth device sends the fourth information to the third device. The third information is used to inquire the capability of the third device, for example, the third information indicates that the third device reports the capability information.

[0331] In this optional mode, the fourth device can determine the content of the condition involved in the second information based on the fourth information, to ensure that the third device can successfully report the first information. For example, the fourth information indicates that the transmission mode supported by the third device is reflection and the transmission order is one order, and then the second information can indicate the information of the path of one order reflection reported by the third device.

[0332] Optionally, the third device can also send the fifth information to the fourth device. The content of the fifth information can refer to the content of the fifth information discussed above, and the repeated part will not be listed here. The fifth information and the first information can be carried in the same message, for example, both are carried in the signal measurement information, and specifically, for example, the fifth information indicates the parameters corresponding to the path, and the first information identifies the path with the parameters corresponding to the path, or can be described as the parameters of the path are associated with the transmission mode and / or the transmission order of the path. In this way, the third device sends the message to the fourth device, which is equivalent to sending the first information and the fifth information. Alternatively, the fifth information and the first information can be carried in different messages, which is not limited here.

[0333] In a possible design, after receiving the first information, the fourth device can determine Y paths from the M paths suitable for positioning, and position or sense the first device based on the parameters of the Y paths and the current position of the second device. The positioning or sensing the first device can include determining the position (e.g., the current position) of the first device. For example, the fourth device selects paths with specific transmission modes and / or specific transmission types from the M paths as the Y paths, or for example, the M paths are all Y paths, which is not limited here.

[0334] Y is a positive integer less than or equal to M, for example, 1, 2, 3, etc. The value of Y is different, and the way the fourth device determines the position of the first device is different, which will be introduced below.

[0335] Case one, in the case that Y equals 1, and the transmission order of the Y paths is 1, and the Y paths correspond to one virtual station, the third device can determine the position of the first device according to the parameters of the Y paths.

[0336] For example, the fourth device can determine the angle between the access network device and the virtual station, relative to the angle (e.g., the first angle) between the virtual station and the terminal device, and the distance between the virtual station and the first device is the distance (e.g., distance 1) of the Y paths. The fourth device knows the angle (e.g., angle 1) between the virtual station and the first device, the position of the virtual station, and the distance 1. Therefore, the fourth device can determine the position of the first device by using the geometric relationship.

[0337] Case two, in the case that Y equals 2, and the Y paths include one LOS path and one NLOS path, and the transmission order of the NLOS path is 1, and the NLOS path corresponds to one virtual station, the fourth device can determine the position of the first device by means of the parameters of the LOS path between the first device and the second device, based on the position of the virtual station and the position of the second device, and the parameters of the NLOS path.

[0338] For example, the fourth device can determine the angle (e.g., angle 2) between the virtual station and the first device according to the angle of the NLOS path and the position of the intermediate body. The parameters of the LOS path include the angle of the LOS path, and the angle (e.g., angle 3) between the first device and the second device is obtained. In this way, the fourth device can determine a straight line 1 starting from the position of the virtual station and directed in the direction of angle 2, and a straight line 2 starting from the position of the second device and directed in the direction of angle 3. Then, the fourth device can determine the intersection of the straight line 1 and the straight line 2, which is the position of the first device.

[0339] Please refer to FIG. 10, which is a schematic diagram of the principle of positioning provided by an embodiment of the present application. FIG. 10 shows that the second device is the access network device, the first device is the terminal device, the NLOS path is acd, the intermediate body corresponding to the NLOS path is located at point c, the virtual station corresponding to the NLOS path is virtual station 1, the access network device is located at point a, and virtual station 1 is located at point d.

[0340] For example, the fourth device can determine the included angle between the virtual station and the terminal device, i.e., the value of the above-mentioned angle 1, the fourth device can determine the distance between the virtual station 1 and the terminal device, i.e., the distance 1, and thus, by taking the position of the virtual station 1 as an end point, extending the distance 1 along the angle 1, the position of the terminal device can be determined, i.e., at point b. Alternatively, the fourth device can determine the angles 2 and 3, the position of the access network device, and the position of the virtual station 1, and then the third device determines the straight line 1 (i.e., the straight line on which ab in FIG. 10 is located) and the straight line 2 (i.e., the straight line on which db is located), so as to determine that the position of the terminal device is at point b.

[0341] Case three, in the case that Y is greater than 1 and the Y paths include at least two NLOS paths, the fourth device determines the position of the first device in the manner of the above-mentioned positioning technology based on the virtual base station, and the repeated part is not listed here. The fourth device determines the position of the first device, which is equivalent to realizing positioning or sensing the first device.

[0342] The specific implementation manners of the first device, the second device, the third device and the fourth device are different, and the interaction between the devices involved in FIG. 8 is different. The following will be introduced by way of example in combination with the interaction schematic diagram between the devices shown in FIG. 11.

[0343] H1, the first device and the third device are terminal devices, the second device is an access network device, and the fourth device is an LMF.

[0344] Under H1, as shown in (1) of FIG. 11, the terminal device can determine the first information, and the terminal device sends the first information to the LMF, for example, the terminal device sends the first information to the LMF through the access network device. Optionally, after the LMF receives the first information, the position of the terminal device is determined.

[0345] Optionally, the terminal device can also receive a reference signal from the access network device, and the terminal device measures the reference signal to obtain the fifth information. Alternatively, the terminal device sends the reference signal to the access network device, the access network device measures the reference signal to obtain the fifth information, and sends the fifth information to the terminal device. The terminal device also sends the fifth information to the LMF.

[0346] H2, the first device and the third device are access network devices, the second device is a terminal device, and the fourth device is an LMF.

[0347] Under H2, as shown in (2) of FIG. 11, the access network device can determine the first information, and the access network device sends the first information to the LMF. Optionally, after the LMF receives the first information, the position of the access network device is determined.

[0348] Optionally, the access network device can further receive a reference signal from the terminal device, measure the reference signal, and obtain the fifth information. Alternatively, the access network device can send a reference signal to the terminal device, the terminal device measures the reference signal, obtains the fifth information, and sends the fifth information to the access network device. The access network device further sends the fifth information to the LMF.

[0349] H3, the first device is a terminal device, the second device and the third device are both access network devices, and the fourth device is an LMF.

[0350] Under H3, as shown in (3) of FIG. 11, the access network device can determine the first information, and the access network device sends the first information to the LMF. Optionally, after the LMF receives the first information, the position of the terminal device is determined.

[0351] Optionally, the access network device can further receive a reference signal from the terminal device, measure the reference signal, and obtain the fifth information. Alternatively, the access network device can send a reference signal to the terminal device, the terminal device measures the reference signal, obtains the fifth information, and sends the fifth information to the access network device. The access network device further sends the fifth information to the LMF.

[0352] H4, the first device is a terminal device, the second device is an access network device, the third device is an AMF, and the fourth device is an LMF.

[0353] Under H4, as shown in (4) of FIG. 11, the AMF can determine the first information, and the AMF sends the first information to the LMF. Optionally, after the LMF receives the first information, the position of the terminal device is determined.

[0354] Optionally, the AMF can further obtain the fifth information from the terminal device or the access network device, and send the fifth information to the LMF.

[0355] H5, the first device is an access network device, the second device is a terminal device, the third device is an AMF, and the fourth device is an LMF.

[0356] Under H5, as shown in (5) of FIG. 11, the AMF can determine the first information, and the AMF sends the first information to the LMF. Optionally, after the LMF receives the first information, the position of the access network device is determined.

[0357] Optionally, the AMF can further obtain the fifth information from the terminal device or the access network device, and send the fifth information to the LMF.

[0358] H6, the first device and the third device are both terminal devices, the second device is a DU, and the fourth device is a CU or a RIC.

[0359] Under H6, as shown in (6) of FIG. 11, the terminal device determines the first information and sends the first information to the RIC. Optionally, the CU or the RIC determines the location of the terminal device after receiving the first information.

[0360] Optionally, the terminal device can measure a reference signal from the DU to obtain the fifth information. Alternatively, the terminal device obtains the fifth information from the DU. The terminal device can send the fifth information to the CU or the RIC.

[0361] H7, the first device and the third device are DUs, the second device is a terminal device, and the fourth device is a CU or a RIC.

[0362] Under H7, as shown in (7) of FIG. 11, the DU determines the first information and sends the first information to the CU or the RIC. Optionally, the CU or the RIC determines the location of the DU after receiving the first information.

[0363] Optionally, the DU can measure a reference signal from the terminal device to obtain the fifth information. Alternatively, the DU obtains the fifth information from the terminal device. The DU can send the fifth information to the CU or the RIC.

[0364] H8, the first device is a terminal device, the second device and the third device are DUs, and the fourth device is a CU or a RIC.

[0365] Under H8, as shown in (8) of FIG. 11, the DU determines the first information and sends the first information to the CU or the RIC. Optionally, the CU or the RIC determines the location of the terminal device after receiving the first information.

[0366] Optionally, the DU can measure a reference signal from the terminal device to obtain the fifth information. Alternatively, the DU obtains the fifth information from the terminal device. The DU can send the fifth information to the CU or the RIC.

[0367] H9, the first device is a DU, the second device and the third device are terminal devices, and the fourth device is a CU or a RIC.

[0368] Under H9, as shown in (9) of FIG. 11, the terminal device determines the first information and sends the first information to the CU or the RIC. Optionally, the CU or the RIC determines the location of the DU after receiving the first information.

[0369] Optionally, the terminal device can measure a reference signal from the DU to obtain the fifth information. Alternatively, the terminal device obtains the fifth information from the DU. The terminal device can send the fifth information to the CU or the RIC.

[0370] In the embodiments of the present application, the third device can determine the first information, so that the fourth device can determine the transmission mode and / or the transmission order corresponding to the M paths respectively, and thus the fourth device can screen the path more suitable for positioning, thereby more accurately positioning the first device. Moreover, the first information can be carried in the signal measurement information, thereby reducing the number of signaling interactions in the network. Moreover, the fourth device or the third device and the like can also perceive the environment in which the first device and the second device are located based on the first information, for example, perceive the obstacles between the first device and the second device, and the like, so as to facilitate adjusting the communication parameters between the first device and the second device based on the perceived environment, thereby improving the communication effect between the first device and the second device, and the like.

[0371] In another possible embodiment, the fourth device can determine the first information by itself and position the first device based on the first information. The content of the first information determined by the fourth device can refer to the content of the first information determined by the third device discussed above, and the repeated parts will not be listed. In this embodiment, not only is it beneficial to accurately position the first device, but also the amount of information interaction in the communication system can be reduced since the fourth device can not need to interact the first information with other devices.

[0372] The implementation manners of the third device are different, and thus the interaction processes between the devices in FIG. 8 involved are also different, which will be introduced below with reference to the schematic diagrams of information transmission methods shown in FIGS. 12 to 14.

[0373] The schematic diagram of the information transmission method shown in FIG. 12 will be introduced below. FIG. 12 is an example of the case of H1 or H2, that is, in FIG. 12, the third device is taken as a terminal device / access network device, and the fourth device is taken as an LMF.

[0374] S1201, the LMF and the terminal device / access network device negotiate measurement configuration.

[0375] For example, the LMF can send a measurement configuration request to the access network device, the measurement configuration request being used to request measurement configuration, and the measurement configuration being used to measure the reference signal. The access network device can send the measurement configuration to the terminal device based on the measurement configuration request. In this way, the terminal device can subsequently send or receive the reference signal based on the configuration.

[0376] S1202, the terminal device / access network device measures the reference signal to obtain fifth information.

[0377] The terminal device / access network device can receive and measure the reference signal based on the measurement configuration to obtain the fifth information. The content of the fifth information can refer to the content of the fifth information discussed above with reference to FIG. 8, and the repeated parts will not be listed here.

[0378] S1203, the terminal device / access network device determines the first information.

[0379] The content of the first information and the content of the determination of the first information by the terminal device / access network device can refer to the content of the first information discussed in FIG. 8 above, respectively. The content of the determination of the first information is not listed here.

[0380] S1204, the terminal device / access network device sends the first information and the fifth information to the LMF. Correspondingly, the LMF receives the first information and the fifth information from the terminal device / access network device.

[0381] The first information and the fifth information can be carried in the same message, for example. Thus, the terminal device / access network device sends the message to the LMF, which is equivalent to sending the first information and the fifth information.

[0382] In the embodiments of the present application, the third device can be the same as the first device or the second device. Thus, the third device can measure the reference signal by itself to obtain the fifth information, which facilitates the determination of the first information by the third device. Since the third device does not need to obtain the fifth information from other devices, the number of information transmission in the communication system can be relatively reduced. Moreover, the LMF can select a more suitable path to locate or perceive the first device according to the first information, which is conducive to improving the accuracy of the LMF in locating or perceiving the first device.

[0383] The information transmission method shown in FIG. 13 will be introduced below. FIG. 13 is an example of the above-mentioned H1 or H2, i.e., in FIG. 13, the third device is the terminal device / access network device, and the fourth device is the LMF. In addition, FIG. 13 is an example of M paths meeting the conditions.

[0384] S1301, the LMF sends the third information to the terminal device / access network device. Correspondingly, the terminal device / access network device receives the third information from the LMF. The third information indicates the reporting capability information of the third device. The content of the third information can refer to the content of the third information discussed in FIG. 8 above, and the repeated parts are not listed here.

[0385] S1302, the terminal device / access network device sends the fourth information to the LMF. Correspondingly, the LMF receives the fourth information from the terminal device / access network device. The fourth information indicates the capability of the third device. The content of the fourth information and the content of the capability of the third device can refer to the content of the fourth information and the content of the capability of the third device discussed in FIG. 8 above, respectively. The repeated parts are not listed here.

[0386] S1303. The LMF sends second information to the terminal device / access network device. Correspondingly, the terminal device / access network device receives the second information from the LMF. The second information indicates the information of the path satisfying the condition. The content of the second information and the content of the condition can be respectively referred to the content of the second information and the content of the condition discussed in FIG. 8 above, which will not be listed here.

[0387] S1301-S1303 are optional steps, which are shown in dashed lines in FIG. 13.

[0388] S1304. The terminal device / access network device determines the first information.

[0389] The content of the first information and the content of the first information determined by the terminal device / access network device can be respectively referred to the content of the first information and the content of the first information determined in FIG. 8 above, which will not be listed here.

[0390] S1305. The terminal device / access network device sends the first information to the LMF. Correspondingly, the LMF receives the first information from the terminal device / access network device.

[0391] In the embodiments of the present application, the third device can report the capability of the third device to the fourth device, and the fourth device can instruct the third device to report the information of the path satisfying the condition based on the capability of the third device. In this way, the third device can more targetedly report the first information, and can also relatively reduce the number of bits occupied by the first information without affecting the positioning or perception of the fourth device.

[0392] The schematic diagram of the information transmission method shown in FIG. 14 will be introduced below. FIG. 14 is an example of the case of H7 or H8, which is illustrated by taking the third device as the DU and the fourth device as the CU or RIC.

[0393] S1401. The RIC sends a measurement configuration to the terminal device through the DU and the CU.

[0394] For example, the RIC can send a measurement configuration request to the access network device, and the measurement configuration request is used to request the configuration of the measurement reference signal. The access network device can send the configuration of the measurement reference signal to the terminal device based on the measurement configuration request. In this way, the terminal device can subsequently send or receive the reference signal based on the configuration.

[0395] S1402. The terminal device sends a reference signal to the DU. The reference signal is, for example, SRS.

[0396] S1403. The DU measures the reference signal and obtains fifth information.

[0397] The content of the fifth information can be referred to the content of the fifth information discussed in FIG. 8 above, and the repeated parts will not be listed here.

[0398] S1404, the DU determines the first information.

[0399] The content of the first information, and the content of the first information determined by the DU can refer to the content of the first information and the content of the first information determined by the DU discussed in the foregoing FIG. 8 respectively, and the repeated parts will not be listed.

[0400] S1405a, the DU sends the first information and the fifth information to the CU. S1405a is applicable to the case where the CU is the fourth device.

[0401] S1405b, the DU sends the first information and the fifth information to the RIC. S1405b is applicable to the case where the RIC is the fourth device.

[0402] In the embodiments of the present application, the DU and the CU in the access network can interact the first information, so that the CU can locate or perceive the first device based on the first information. Alternatively, the DU and the RIC in the access network can interact the first information, so that the RIC can locate or perceive the first device based on the first information. In this way, each module in the open access network can support the information transmission method provided by the embodiments of the present application. Moreover, it is also convenient for the CU or the RIC to accurately locate the first device.

[0403] The embodiments of the present application provide a communication device. FIGS. 15 to 17 are possible structural schematic diagrams of the communication device provided by the embodiments of the present application. These communication devices can be used to realize the functions of the third device or the fourth device in the above-mentioned method embodiments, and thus can also realize the beneficial effects possessed by the above-mentioned various method embodiments. In the embodiments of the present application, the communication device can be at least one of the third device or the fourth device involved in FIG. 5, at least one of the terminal device, the access network device, the SMF and / or the LMF involved in FIG. 6A, at least one of the terminal device, the access network device, the SMC or the SMF involved in FIG. 6B, at least one of the terminal device, the access network device or the SMF involved in FIG. 6C, or at least one of the Non-RT RIC, the Near-RT RIC, the CU or the O-CU involved in FIG. 7.

[0404] The communication apparatus shown in FIG. 15 is described below. As shown in FIG. 15, the communication apparatus 1500 can include modules or units for implementing the above-described method embodiments. In one possible design, the communication apparatus 1500 includes a processing unit 1510 and a communication unit 1520. The communication unit 1520 is configured to perform transceiving operations, such as functions related to transmitting and receiving; the communication unit 1520 can be referred to as a transceiver; optionally, the communication unit 1520 includes a receiving unit and a transmitting unit. The processing unit 1510 is configured to perform processing operations. Alternatively, the communication unit 1520 can be a transmitter and a receiver, or the communication unit 1520 is a transmitter and a receiver. Optionally, the communication apparatus 1500 further includes a storage unit 1530. The storage unit 1530 is configured to store program codes or data of the apparatus. The storage unit 1530 is an optional unit, as shown in FIG. 15 by a dashed box.

[0405] In a first embodiment, the communication apparatus 1500 can be the third apparatus in the above-described embodiments, for example, a communication module in the third apparatus, or a circuit or chip responsible for communication functions in the third apparatus. For example, the third apparatus is a terminal device, and the communication apparatus 1500 can be the terminal device, a communication module in the terminal device, or a circuit or chip responsible for communication functions in the terminal device. For another example, the third apparatus is an access network device, and the communication apparatus 1500 can be the access network device, a communication module in the access network device, or a circuit or chip responsible for communication functions in the access network device.

[0406] [Corrected according to Rule 91 on 29.08.2025] For example, the communication apparatus 1500 can implement the functions of the third apparatus in the method embodiments shown in FIG. 8, the third apparatus related to FIG. 11, the terminal device / access network device in the method embodiments shown in FIG. 12, the terminal device / access network device in the method embodiments shown in FIG. 13, or the DU in the method embodiments shown in FIG. 14.

[0407] In the above-described embodiments, the processing unit 1510 is configured to determine the first information, and the communication unit 1520 is configured to transmit the first information.

[0408] For example, the processing unit 1510 is configured to perform the steps of S801, and the communication unit 1520 is configured to perform the steps of S802 involving transmitting the first information. For another example, the processing unit 1510 is configured to perform the steps of S1203, and the communication unit 1520 is configured to perform the steps of S1204 involving transmitting the first information. For yet another example, the processing unit 1510 is configured to perform the steps of S1304, and the communication unit 1520 is configured to perform the steps of S1305 involving transmitting the first information. For yet another example, the processing unit 1510 is configured to perform the steps of S1404, and the communication unit 1520 is configured to perform the steps of S1405a or S1405b involving transmitting the first information.

[0409] The communication apparatus 1500 can also implement other steps performed by the third apparatus in the method embodiments of FIG. 8, the third apparatus of FIG. 11, the terminal device / access network device in the method embodiments of FIG. 12, the terminal device / access network device in the method embodiments of FIG. 13, the DU in the method embodiments of FIG. 14, which are not listed one by one here.

[0410] In a possible design, when the communication apparatus 1500 is a terminal, a communication module in a terminal, an access network device, or a communication module in an access network device, the functions of the processing unit 1510 can be implemented by one or more processors. Specifically, the processor can include a Modem chip, or a System on Chip (SoC) chip or a SIP chip including a Modem core. The functions of the communication unit 1520 can be implemented by a transceiver circuit.

[0411] In a possible design, when the communication apparatus 1500 is a circuit or chip responsible for communication functions in a terminal device, or a circuit or chip responsible for communication functions in an access network device, such as a Modem chip or a System on Chip (SoC) chip or a SIP chip including a Modem core, the functions of the processing unit 1510 can be implemented by circuit systems including one or more processors or processor cores in the chip. The functions of the communication unit 1520 can be implemented by interface circuits or data transceiver circuits on the chip.

[0412] In a second embodiment, the communication apparatus 1500 can be the fourth apparatus in the above embodiments, for example, a communication module in the fourth apparatus, or a circuit or chip responsible for communication functions in the fourth apparatus. For example, the fourth apparatus is an LMF. For another example, the third apparatus is an access network device, and the communication apparatus 1500 can be the access network device, a communication module in the access network device, or a circuit or chip responsible for communication functions in the access network device.

[0413] For example, the communication apparatus 1500 can implement the functions of the fourth device in the method implementation of FIG. 8, the fourth device involved in FIG. 11, the LMF in the method implementation of FIG. 12, the LMF in the method implementation of FIG. 13, the DU or RIC in the method implementation of FIG. 14.

[0414] In the above implementation, the processing unit 1510 is configured to receive the first information.

[0415] For example, the communication unit 1520 is configured to perform the step of receiving the first information involved in S802. For another example, the communication unit 1520 is configured to perform the step of receiving the first information involved in S1204. For another example, the communication unit 1520 is configured to perform the step of receiving the first information involved in S1305. For another example, the communication unit 1520 is configured to perform the step of receiving the first information involved in S1405a or S1405b.

[0416] The communication apparatus 1500 can also implement other steps performed by the fourth device in the method implementation of FIG. 8, the fourth device involved in FIG. 11, the LMF in the method implementation of FIG. 12, the LMF in the method implementation of FIG. 13, the CU or RIC in the method implementation of FIG. 14, which are not listed one by one here.

[0417] In a possible design, when the communication apparatus 1500 is an access network device or a communication module in an access network device, the function of the processing unit 1510 can be implemented by one or more processors. Specifically, the processor can include a Modem chip, or a System on Chip (SoC) chip or a SIP chip containing a Modem core. The function of the communication unit 1520 can be implemented by a transceiver circuit.

[0418] In a possible design, when the communication apparatus 1500 is a circuit or chip responsible for communication functions in an access network device, such as a Modem chip or a System on Chip (SoC) chip or a SIP chip containing a Modem core, the function of the processing unit 1510 can be implemented by the circuit system including one or more processors or processor cores in the above chip. The function of the communication unit 1520 can be implemented by the interface circuit or data transceiver circuit on the above chip.

[0419] It can be understood that the division of units in the above apparatus is only a logical function division, one function unit can be used for each function, or two or more functions can be integrated in one function unit. In actual implementation, all or part of the units can be integrated into one physical entity, or can be distributed in different physical entities. In addition, the above function units can be realized in the form of hardware, or in the form of software, or in the form of hardware combined with software. Whether a certain function is executed in the form of hardware or software depends on the specific application and design constraints of the technical scheme. Professional technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the present application.

[0420] In one example, the function units in any of the above apparatuses can be one or more integrated circuits configured to implement the above methods, such as one or more application specific integrated circuits (ASICs), or one or more central processing units (CPUs), one or more microcontroller units (MCUs), one or more DSPs, or one or more field programmable gate arrays (FPGAs), or a combination of at least two of these integrated circuit forms.

[0421] In one example, the storage unit 1530 can include random access memory, flash memory, read only memory, programmable read only memory, or electrically erasable programmable memory, and / or registers, etc.

[0422] The communication apparatus shown in FIG. 16 is described below. As shown in FIG. 16, the communication apparatus 1600 includes a processor 1610. Optionally, the communication apparatus 1600 further includes an interface circuit 1620 and a memory 1630. The processor 1610 and the interface circuit 1620 are coupled to each other. It can be understood that the interface circuit 1620 can be a transceiver or an input / output interface. The memory 1630 is used to store instructions executed by the processor 1610 or to store input data required by the processor 1610 to run instructions or to store data generated after the processor 1610 runs instructions. The interface circuit 1620 and the memory 1630 are optional modules, which are shown in a dashed box in FIG. 16. In addition, one processor 1610 and one memory 1630 are taken as an example in FIG. 16, but the number of processors 1610 and memories 1630 is not limited in practice.

[0423] The communication device 1600 is configured to implement the method embodiments shown in any of FIG. 8, FIG. 12 to FIG. 14. Optionally, the processor 1610 is configured to implement the functions of the processing unit 1510 described above, and the interface circuit 1620 is configured to implement the functions of the communication unit 1520 described above.

[0424] When the communication device 1600 described above is a chip applied to a certain device (such as the third device or the fourth device described above), the device chip implements the functions of the device in the method embodiments described above. The device chip receives information from other modules (such as a radio frequency module or an antenna) in the device, and the information is sent by other devices to the device. Alternatively, the device chip sends information to other modules (such as a radio frequency module or an antenna) in the device, and the information is sent by the device to other devices. The communication device 1600 described above can be a baseband chip of a certain device, or a DU or other modules, and the DU described above can be a DU under the open radio access network (O-RAN) architecture.

[0425] The processor 1610 can be a central processing unit (CPU), and can also be other general-purpose processors, digital signal processors (DSPs), application specific integrated circuits (ASICs), field programmable gate arrays (FPGAs) or other programmable logic devices, transistor logic devices, hardware components or any combination thereof. The general-purpose processor can be a microprocessor or any conventional processor. In addition, the memory involved in each embodiment of the present application can include a volatile memory such as a random access memory (RAM). The memory can also include a non-volatile memory such as a read-only memory (ROM), a flash memory, a hard disk drive (HDD) or a solid state drive (SSD).

[0426] The embodiment of the present application provides a communication device. The communication device can be a processor (circuit) of a third device or a fourth device, or a chip. The communication device can be used to perform the operation performed by the third device or the fourth device in the method embodiment. For example, the communication device can be used to realize the function of the third device in the method embodiment shown in FIG. 8, the third device related to FIG. 11, the terminal device / access network device in the method embodiment shown in FIG. 12, the terminal device / access network device in the method embodiment shown in FIG. 13, and the DU in the method embodiment shown in FIG. 14.

[0427] For example, the processor 1610 is configured to realize the processing unit 1510 used to perform the step S801, and the interface circuit 1620 is configured to perform the step of sending the first information related to S802. For another example, the processor 1610 is configured to perform the step S1203, and the interface circuit 1620 is configured to perform the step of sending the first information related to S1204. For another example, the processor 1610 is configured to perform the step S1304, and the interface circuit 1620 is configured to perform the step of sending the first information related to S1305. For another example, the processor 1610 is configured to perform the step S1404, and the interface circuit 1620 is configured to perform the step of sending the first information related to S1405a or S1405b.

[0428] Alternatively, the communication device can be used to realize the function of the fourth device in the method embodiment shown in FIG. 8, the fourth device related to FIG. 11, the LMF in the method embodiment shown in FIG. 12, the LMF in the method embodiment shown in FIG. 13, and the CU or RIC in the method embodiment shown in FIG. 14.

[0429] For example, the interface circuit 1620 is configured to perform the step of receiving the first information related to S802. For another example, the interface circuit 1620 is configured to perform the step of receiving the first information related to S1204. For another example, the interface circuit 1620 is configured to perform the step of receiving the first information related to S1305.

[0430] For another example, the interface circuit 1620 is configured to perform the step of receiving the first information related to S1405a or S1405b.

[0431] As shown in FIG. 17, the communication device 1700 includes a processor 1710 and a transceiver 1730. The processor 1710 can also be referred to as a processing unit, a processing board, a processing module, a processing device, etc. The transceiver 1730 can also be referred to as a transceiving unit, a transceiver, a transceiving device, etc. The transceiver 1730 includes a transmitter 1731, a receiver 1732, and an antenna 1733. Optionally, the transceiver 1730 can also include a radio frequency circuit, an input / output device, etc., which are not limited herein.

[0432] Optionally, the device in the transceiver 1730 for implementing the receiving function is regarded as a receiving module, and the device in the transceiver 1730 for implementing the sending function is regarded as a sending module, that is, the transceiver 1730 includes a receiver and a transmitter. The transceiver can also be referred to as a transceiver, a transceiving module, or a transceiving circuit, etc. The receiver can also be referred to as a receiver, a receiving module, or a receiving circuit, etc. The transmitter can also be referred to as a transmitter, a sending module, or a sending circuit, etc.

[0433] Optionally, the communication apparatus 1700 can further include a memory 1720, which can store computer program code and / or data.

[0434] The processor 1710 is mainly used for processing communication protocols and communication data, and controlling the communication apparatus 1700, executing software programs, processing data of the software programs, etc. The memory 1720 is mainly used for storing software programs and data. The radio frequency circuit is mainly used for conversion between baseband signals and radio frequency signals and processing of the radio frequency signals. The antenna 1733 is mainly used for transceiving radio frequency signals in the form of electromagnetic waves. The input / output apparatus, for example, a touch screen, a display screen, a keyboard, etc. is mainly used for receiving data input by a user and outputting data to the user.

[0435] When data needs to be sent, the processor 1710 performs baseband processing on the data to be sent, and outputs a baseband signal to the radio frequency circuit. The radio frequency circuit performs radio frequency processing on the baseband signal, and transmits a radio frequency signal through an antenna in the form of electromagnetic waves. When data is sent to the communication apparatus 1700, the radio frequency circuit receives a radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor. The processor 1710 converts the baseband signal into data and processes the data. For the convenience of description, only one memory 1720, one processor 1710 and one transceiver 1730 are shown in FIG. 17. In actual terminal products, there can be one or more processors 1710 and one or more memories 1720. The memory 1720 can also be referred to as a storage medium or a storage device, etc. The memory 1720 can be arranged independently of the processor 1710, or can be integrated with the processor 1710, which is not limited.

[0436] In the embodiments of the present application, the antenna and the radio frequency circuit having the transceiving function are regarded as the communication unit of the communication apparatus 1700, and the processor having the processing function is regarded as the processing unit of the communication apparatus 1700. The processor 1710 is used to perform the processing actions of the third device or the fourth device side in the above-mentioned embodiments, and the transceiver 1730 is used to perform the transceiving actions of the third device or the fourth device side in the above-mentioned embodiments.

[0437] For example, the processor 1710 is configured to perform the step of S801, and the transceiver 1730 is configured to perform the step of sending the first information involved in S802. For another example, the processor 1710 is configured to perform the step of S1203, and the transceiver 1730 is configured to perform the step of sending the first information involved in S1204. For another example, the processor 1710 is configured to perform the step of S1304, and the transceiver 1730 is configured to perform the step of sending the first information involved in S1305. For another example, the processor 1710 is configured to perform the step of S1404, and the transceiver 1730 is configured to perform the step of sending the first information involved in S1405a or S1405b.

[0438] For example, the transceiver 1730 is configured to perform the step of receiving the first information involved in S802. For another example, the transceiver 1730 is configured to perform the step of receiving the first information involved in S1204. For another example, the transceiver 1730 is configured to perform the step of receiving the first information involved in S1305. For another example, the transceiver 1730 is configured to perform the step of receiving the first information involved in S1405a or S1405b.

[0439] When the communication apparatus 1700 is a chip, the chip includes a processor and a transceiver. The transceiver can be an input / output circuit or a communication interface; the processor can be a processing module integrated on the chip or a microprocessor or an integrated circuit. Optionally, the chip can further include a memory. The sending operation of the third device or the fourth device in the method embodiments can be understood as the output of the chip, and the receiving operation of the third device or the fourth device in the method embodiments can be understood as the input of the chip.

[0440] The embodiments of the present application provide a communication system. The communication system includes a third device and a fourth device. The third device can implement the functions of the third device in the method embodiments shown in FIG. 8, the terminal device / access network device in the method embodiments shown in FIG. 12, the terminal device / access network device in the method embodiments shown in FIG. 13, and the DU in the method embodiments shown in FIG. 14. The fourth device can implement the functions of the fourth device in the method embodiments shown in FIG. 8, the LMF in the method embodiments shown in FIG. 12, the LMF in the method embodiments shown in FIG. 13, and the CU or RIC in the method embodiments shown in FIG. 14.

[0441] The embodiments of the present application provide a chip system. The chip system includes a processor and an interface. The processor is configured to call and run an instruction from the interface. When the processor executes the instruction, the method embodiments shown in any one of FIG. 8, FIG. 12 to FIG. 14 are implemented.

[0442] The embodiment of the present application provides a computer readable storage medium for storing computer programs or instructions, which, when executed, implement the method embodiments shown in any one of FIG. 8, FIG. 12 to FIG. 14.

[0443] The embodiment of the present application provides a computer program product containing instructions, which, when executed on a computer, implement the method embodiments shown in any one of FIG. 8, FIG. 12 to FIG. 14.

[0444] In the above embodiments, all or part of the embodiments can be implemented by software, hardware, firmware or any combination thereof. When implemented by software, all or part of the embodiments can be implemented in the form of a computer program product. The computer program product includes one or more computer programs or instructions. When the computer programs or instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of the present application are executed. The computer can be a general-purpose computer, a special-purpose computer, a computer network, a network device, a user equipment or other programmable apparatus. The computer programs or instructions can be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another computer readable storage medium, for example, the computer programs or instructions can be transmitted from one website site, computer, server or data center to another website site, computer, server or data center through a wired or wireless manner. The computer readable storage medium can be any available medium accessible by a computer or a data storage device such as a server, data center and the like integrated with one or more available media. The available media can be a magnetic medium, for example, a floppy disk, a hard disk, a magnetic tape; an optical medium, for example, a digital video disc; and a semiconductor medium, for example, a solid state disk. The computer readable storage medium can be a volatile or non-volatile storage medium, or can include both volatile and non-volatile storage media.

[0445] In various embodiments of the present application, the terms and / or descriptions of different embodiments are consistent and can be referred to each other if there is no special description and logical conflict. The technical features in different embodiments can be combined to form new embodiments according to their inherent logical relationship.

[0446] The various digital numbers involved in the various embodiments of the present application are only used for differentiation for convenience of description, and are not used to limit the scope of the embodiments of the present application. The size of the serial number of the above processes does not mean the order of execution, and the execution order of the processes should be based on their functions and inherent logic.

Claims

1. A method of information transmission, characterized in that, The method comprises: determining first information, wherein the first information indicates transmission manners and / or transmission orders corresponding to M paths respectively, any path in the M paths corresponds to at least one of reflection, scattering, diffraction, transmission or refraction, the M paths are transmission paths of signals between a first device and a second device, and M is a positive integer; sending the first information.

2. A method of information transmission, characterized by The method comprises: receiving first information, wherein the first information indicates transmission manners and / or transmission orders corresponding to M paths respectively, any path in the M paths corresponds to at least one of reflection, scattering, diffraction, transmission or refraction, the M paths are transmission paths of signals between a first device and a second device, and M is a positive integer; based on the first information, positioning the first device.

3. The method according to claim 1 or 2, characterized in that, the transmission order corresponding to any path in the M paths is: a number of obstacles on the any path; or a number of changes in direction of signals transmitted on the any path.

4. The method according to any one of claims 1-3, characterized in that, The transmission order corresponding to any path in the M paths is associated with the transmission manner corresponding to the any path.

5. The method of claim 4, wherein, The transmission order corresponding to any path is associated with the transmission manner corresponding to the any path, comprising: a number of the transmission orders corresponding to the any path is greater than or equal to a number of types of the transmission manner corresponding to the any path; and a number of the transmission orders corresponding to the any path is greater than or equal to a number of the transmission manners corresponding to the any path.

6. The method according to any one of claims 1-5, characterized in that, In the case where M is greater than 1: the transmission orders corresponding to any two paths in the M paths are the same, and the transmission manners are the same; or the transmission orders corresponding to at least two paths in the M paths are different; or the transmission manners corresponding to at least two paths in the M paths are different.

7. The method of any one of claims 1-6, wherein: the transmission manners corresponding to W paths in the M paths are all associated with a first transmission order, wherein the transmission orders corresponding to the W paths are all the first transmission order, and W is an integer greater than or equal to 1; and / or the transmission orders corresponding to X paths in the M paths are all associated with a first transmission manner, wherein the transmission manners corresponding to the X paths are all the first transmission manner, and X is an integer greater than or equal to 1.

8. The method of any one of claims 1-7, wherein: the transmission orders corresponding to the M paths are all 1, and the transmission manners corresponding to the M paths are all reflection.

9. The method according to any one of claims 1-8, characterized in that, The first information comprises at least one of: information of the transmission manners corresponding to the M paths respectively, and information of the transmission orders corresponding to the M paths respectively; information of the transmission manners corresponding to at least one path associated with each transmission order in P transmission orders, wherein the P transmission orders are a union set of the transmission orders corresponding to the M paths respectively, at least one path associated with one transmission order comprises a path in the M paths whose transmission order is the one transmission order, and P is a positive integer; and / or information of the transmission manners corresponding to at least one path associated with each transmission order in P transmission orders, wherein the P transmission orders are a union set of the transmission orders corresponding to the M paths respectively, at least one path associated with one transmission order comprises a path in the M paths whose transmission order is the one transmission order, and P is a positive integer. information of a transmission order corresponding to at least one path associated with each of the Q transmission modes, wherein the Q transmission modes are a union of transmission modes corresponding to the M paths respectively, wherein the at least one path associated with one transmission mode includes a path in the M paths with the transmission mode being the one transmission mode, and Q is a positive integer; or information of a transmission mode and / or a transmission order of each of the M paths satisfying a condition, or information of a transmission mode and / or a transmission order of each of the M paths not satisfying the condition.

10. The method of any of claims 1-9, wherein the first information indicating the transmission mode and / or the transmission order corresponding to the M paths respectively comprises: the first information comprising probability information of each of the M paths, wherein the probability information of any path of the M paths indicates at least one of a probability corresponding to a transmission mode corresponding to the any path, a probability corresponding to a transmission order, or a probability corresponding to a transmission mode and a transmission order.

11. The method according to any one of claims 1 and 3-10, characterized in that, The method further comprises: receiving second information indicating information of a path satisfying a condition sent by the third device, or second information indicating whether a path sent by the third device satisfies the condition, wherein the condition represents a condition that a transmission mode and / or a transmission order corresponding to the path satisfies.

12. The method according to any one of claims 1 and 3-11, characterized in that, The method further comprises: receiving third information indicating capability information reported by the third device; sending fourth information indicating a capability of the third device, the capability of the third device comprising a transmission mode and / or a transmission order supported by the third device.

13. The method according to any one of claims 1 and 3-12, characterized in that, The method further comprises: sending fifth information indicating parameters corresponding to the M paths respectively.

14. The method according to any one of claims 2-10, characterized in that, The method further comprises: receiving second information indicating information of a path satisfying a condition sent by the third device, or second information indicating whether a path sent by the third device satisfies the condition, wherein the condition represents a condition that a transmission mode and / or a transmission order corresponding to the path satisfies.

15. The method according to any one of claims 2-10 and 14, characterized in that, The method further comprises: sending third information for indicating capability information reported by the third device; receiving fourth information indicating a capability of the third device, the capability of the third device comprising a transmission mode and / or a transmission order supported by the third device.

16. The method of any of claims 2-10, 14 and 15, wherein the method further comprises: receiving fifth information indicating parameters corresponding to the M paths respectively; positioning the first device based on the first information comprises: positioning the first device based on the fifth information and the first information.

17. A communications device, characterized by The apparatus comprises: a module for performing the method of any of claims 1 and 3-13; or a module for performing the method of any of claims 2-10 and 14-16.

18. A communications device, characterized by comprising one or more processors for executing computer programs or instructions in a memory, such that the communication device implements the method of any one of claims 1 and 3-13, or implements the method of any one of claims 2-10 and 14-16.

19. A computer program product, characterised in that, When a computer reads and executes the computer program product, the computer is caused to perform the method of any one of claims 1 and 3-13, or the method of any one of claims 2-10 and 14-16.

20. A computer-readable storage medium, characterized in that, The storage medium has stored therein computer programs or instructions, which, when executed by a communication device, implement the method of any one of claims 1 and 3-13, or the method of any one of claims 2-10 and 14-16.

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