Wireless communication methods, core network equipment, and communication equipment

Abstract

The present invention provides a wireless communication method, core network equipment, and communication equipment. In this method, the core network equipment receives first instruction information, which relates to one or more of the following: measurement information of a terminal device, timing advance TA information of the terminal device, and information on the terminal device's ability to autonomously adjust its TA. If the terminal device can self-adjust its TA, upon receiving the first instruction information, the core network equipment can perform TA-related operations in accordance with the first instruction information. For example, the core network equipment can estimate whether the terminal device has self-adjusted its TA, etc. Since the computing power of the core network equipment is higher than that of the terminal device, performing TA-related operations by the core network equipment can reduce the computational load on the terminal device. Furthermore, if the core network equipment includes a location server, the first instruction information can further provide the core network equipment with a basis for calculating the terminal device's location, thereby improving positioning quality and positioning accuracy.

Description

[Technical Field]

[0001] The present invention relates to the field of communications, and more specifically to wireless communication methods, core network equipment, and communication equipment. [Background technology]

[0002] To adapt to various usage scenarios of terminal equipment and to achieve uplink synchronization in different scenarios, it is generally necessary to adjust the timing advance (TA). In a communication system, the initial and adjusted values ​​of the TA are notified to the terminal equipment by the network equipment. For example, terminal equipment can dynamically update the TA in response to TA commands sent from the network equipment.

[0003] In some cases, for example, if a terminal device cannot obtain TA adjustment parameters, it can determine that the TA needs to be adjusted. For example, when a terminal device moves within or between serving cells, it can further determine whether TA adjustment is necessary by measuring the synchronization signal block (SSB) or estimating the arrival time. In other words, the terminal device has the ability to determine whether or not to adjust the TA. [Overview of the project] [Problems that the invention aims to solve]

[0004] This application provides a wireless communication method, core network equipment, and communication equipment. The various aspects of this application will be described below. [Means for solving the problem]

[0005] In a first embodiment, a wireless communication method is provided, the method comprising the step of a core network device receiving first instruction information, the first instruction information relating to one or more items of measurement information of a terminal device, TA information of the terminal device, and autonomous TA adjustment capability information of the terminal device.

[0006] A second embodiment provides another wireless communication method, the method comprising the step of a first device transmitting first instruction information to a core network device, the first instruction information relating to one or more items of measurement information of a terminal device, TA information of a terminal device, and autonomous TA adjustment capability information of a terminal device.

[0007] In a third embodiment, a core network device is provided. The core network device includes a receiving unit configured to receive first instruction information, the first instruction information relating to one or more items of measurement information of a terminal device, TA information of the terminal device, and capability information for autonomously adjusting the TA of the terminal device.

[0008] In a fourth embodiment, a communication device is provided. The communication device includes a transmitting unit configured to transmit first instruction information to a core network device, the first instruction information relating to one or more items of measurement information of a terminal device, TA information of the terminal device, and capability information for autonomously adjusting the TA of the terminal device.

[0009] In the fifth embodiment, a core network device is provided, comprising a processor, memory and a communication interface, wherein the memory is configured to store one or more computer programs, and the processor is configured to call the one or more computer programs in the memory and cause the core network device to perform some or all of the steps in the method of the first embodiment.

[0010] In the sixth embodiment, a communication device is provided, comprising a processor, memory, and a communication interface, wherein the memory is configured to store one or more computer programs, and the processor is configured to call the one or more computer programs in the memory and cause the communication device to perform some or all of the steps in the method of the second embodiment.

[0011] In a seventh aspect, a communication system including the above-described core network device and / or communication device is provided. In another possible design, this system may further include other devices that interact with the core network device and / or communication device provided in the embodiments of the present application.

[0012] In an eighth aspect, a computer-readable storage medium storing a computer program that causes a computer to execute part or all of the steps of the method according to each of the above aspects is provided.

[0013] In a ninth aspect, a computer program product is provided, the computer program product includes a non-transitory computer-readable storage medium having a computer program stored thereon, and the computer program causes a computer to execute part or all of the steps of the method according to each of the above aspects. In some embodiments, the computer program product may be a software installation package.

[0014] In a tenth aspect, a computer program is provided, the computer program is executable to cause a computer to implement part or all of the steps of the method according to each of the above aspects.

[0015] In an eleventh aspect, a chip including a memory and a processor is provided, the processor is configured to call and execute a computer program from the memory, thereby implementing part or all of the steps of the method according to each of the above aspects. Effects of the Invention

[0016] If a terminal device is capable of autonomously adjusting Timing Advance (TA), based on receiving first indication information, a core network device can perform TA-related operations based on the first indication information. For example, the core network device can estimate whether the terminal device has autonomously adjusted TA. Since the computing power of the core network device is higher than that of the terminal device, causing the core network device to perform TA-related operations can reduce the computational load of the terminal device. In addition, the core network device can acquire information from a plurality of access network devices and perform TA-related operations by combining information from the plurality of access network devices, thereby improving the execution accuracy of TA-related operations. Furthermore, when the core network device includes a location server, the first indication information can also provide a basis for the core network device to calculate the position of the terminal device, thereby improving positioning quality and positioning accuracy. [BRIEF DESCRIPTION OF THE DRAWINGS]

[0017] [Figure 1] FIG. 1 is a diagram showing an example of a system architecture of a wireless communication system applicable to an embodiment of the present application. [Figure 2] FIG. 2 is a schematic flowchart of a wireless communication method according to an embodiment of the present application. [Figure 3] FIG. 3 is a diagram showing an example of a scenario for determining transmission delay according to an embodiment of the present application. [Figure 4] FIG. 4 is a schematic flowchart of another wireless communication method according to an embodiment of the present application. [Figure 5] FIG. 5 is a schematic diagram of the structure of a core network device according to an embodiment of the present application. [Figure 6] FIG. 6 is a schematic diagram of the structure of a communication device according to an embodiment of the present application. [Figure 7] FIG. 7 is a schematic diagram of the structure of a communication apparatus according to an embodiment of the present application. [MODE FOR CARRYING OUT THE INVENTION]

[0018] The technical solutions of the present application are described below with reference to the accompanying drawings.

[0019] Communication system

[0020] Figure 1 shows a wireless communication system 100 applied to an embodiment of the present application. This wireless communication system 100 may include communication equipment. The communication equipment may include network equipment 110 and terminal equipment 120. Network equipment 110 may be equipment that communicates with terminal equipment 120. Network equipment 110 can provide communication coverage to a specific geographic area and can communicate with terminal equipment 120 located within this coverage area.

[0021] Figure 1 illustrates one network device and two terminal devices. Optionally, the wireless communication system 100 may include multiple network devices, and the coverage area of ​​each network device may include other terminal devices; the embodiments of this application are not limited thereto.

[0022] The wireless communication system 100 may optionally further include other network entities such as a network controller or a mobility management entity, and the embodiments of the present application are not limited thereto.

[0023] It should be understood that the technical solutions of the embodiments of this application can be applied to various communication systems, such as 5th generation (5G) systems or NR (new radio), long-term evolution (LTE) systems, LTE frequency division duplex (FDD) systems, and LTE time division duplex (TDD) systems. The technical solutions of this application can also be applied to future communication systems such as 6th generation mobile communication systems and satellite communication systems.

[0024] In the embodiments of the present application, terminal equipment may be referred to as user equipment (UE), access terminal, user unit, user station, mobile platform, mobile station (MS), mobile terminal (MT), remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent, or user device. In the embodiments of the present application, terminal equipment may refer to devices that provide voice and / or data connectivity to a user and can be configured to communicate with people, objects, and machines, such as handheld devices and in-vehicle devices with wireless connectivity. The terminal devices in the embodiments of this application may include mobile phones, tablets, laptop computers, palmtop computers, mobile internet devices (MIDs), wearable devices, virtual reality (VR) devices, augmented reality (AR) devices, wireless terminals in industrial control, wireless terminals in self-driving, wireless terminals in remote medical surgery, wireless terminals in smart grids, wireless terminals in transportation safety, wireless terminals in smart cities, and wireless terminals in smart homes. Optionally, the UE may also be configured to function as a base station. For example, the UE may function as a scheduling entity providing sidelink signals between UEs in V2X (vehicle-to-everything) communication or D2D (device-to-device) communication. For example, a cellular phone and a car can communicate with each other using sidelink signals. Cellular phones can communicate with smart home devices without the need for base stations to relay communication signals.

[0025] The network equipment in the embodiments of this application may be equipment configured to communicate with terminal equipment. The network equipment may also include access network equipment. Access network equipment may also be called radio access network equipment or base stations. The access network equipment in the embodiments of this application may refer to radio access network (RAN) nodes (or equipment) that provide terminal equipment to a radio network. Access network equipment is broadly covered by various names, or can be replaced by these names, such as NodeB, eNodeB (evolved NodeB, eNB), gNodeB (next generation NodeB, gNB), relay station, access point, transmitting and receiving point (TRP), transmitting point (TP), MeNB (master eNB), SeNB (secondary eNB), multi-standard radio (MSR) node, home base station, network controller, access node, radio node, access point (AP), transmission node, transceiver node, base band unit (BBU), remote radio unit (RRU), active antenna unit (AAU), remote radio head (RRH), CU (centralized unit), DU (distributed unit), and positioning node. A base station may be a macro base station, a micro base station, a relay node, a donor node, or something similar, or a combination thereof. A base station may further refer to a communication module, modem, or chip configured to be installed within the aforementioned equipment or device.A base station may be a mobile switching center, a device that performs base station functions in D2D communication, V2X communication, machine-to-machine (M2M) communication, a network-side device in a 6G network, or a device that performs base station functions in a future communication system. A base station can support networks with the same or different access technologies. The embodiments of this application do not limit the specific technologies used in access network equipment or the specific forms of equipment.

[0026] Base stations may be fixed or mobile. For example, a helicopter or drone may be configured as a mobile base station, and one or more cells may move depending on the location of this mobile base station. In another example, a helicopter or drone may be configured as equipment for communicating with another base station.

[0027] In some deployments, the network equipment in the embodiments of the present invention refers to a CU or DU, or the network equipment may include both a CU and a DU. The gNB may further include an AAU.

[0028] Network equipment and terminal equipment may be configured on land, including indoors or outdoors, handheld or vehicle-mounted, on water, or in the air on airplanes, balloons, or satellites. The embodiments of this application do not limit the scenarios in which the network equipment and terminal equipment are located.

[0029] Communication equipment related to wireless communication systems may include not only access network equipment and terminal equipment, but also core network equipment. Core network equipment may also be network equipment.

[0030] The core network equipment in the embodiments of this application may include equipment that signals users and processes and transmits data. For example, the core network equipment may include core access and mobility management function (AMF), session management function (SMF), user plane gateway, and location management function (LMF). The user plane gateway may be a server that has functions such as mobility management, routing, and transmission for user plane data, and is generally located on the network side, for example, an SGW (serving gateway), PGW (packet data network gateway), or user plane function (UPF). The AMF and SMF may correspond to the mobility management entity (MME) in an LTE system. The AMF is mainly responsible for admission, and the SMF is mainly responsible for session management. Naturally, the core network may include other network elements, which will not be listed here.

[0031] The core network equipment may include a location server. The location server can perform location identification, location management, and other location-related functions for terminal devices. In some embodiments, the location server may be called a location management device. The location server according to the embodiments of this application may include an LMF network element or a local location management function (LLMF) located in the network equipment, and the embodiments of this application are not limited to these.

[0032] It should be understood that all or some of the functions of the communication equipment in this application may be implemented by software functions running on the hardware, or by virtualization functions instantiated on a platform (e.g., a cloud platform).

[0033] TA

[0034] Wireless communication systems (e.g., LTE / NR systems) can employ orthogonal frequency division multiplexing (OFDM) transmission. This is because, as long as each subcarrier maintains orthogonality, the wireless communication system has good demodulation performance. However, due to the existence of transmission delay, downlink signals are received by terminal equipment only after a certain delay. Because different terminal equipment is located at different positions relative to the network equipment, the time it takes for uplink signals transmitted from different terminal equipment to reach the network equipment also differs, which seriously affects the orthogonality between subcarriers and degrades the demodulation performance of the OFDM transmission system. Taking uplink transmission as an example, an important characteristic of uplink transmission is orthogonal multiple access at different time frequencies of different terminal equipment, that is, uplink transmissions from different terminal equipment in the same cell do not interfere with each other. Uplink transmission is usually a transmission involving multiple terminal equipment. Therefore, network equipment can receive signals from multiple terminal equipment simultaneously.

[0035] To ensure the orthogonality of uplink transmissions and avoid intra-cell interference, network equipment may require that signals from different terminal devices using different frequency domain resources be substantially aligned in time by the time they reach the network equipment. This requirement is set because, as long as the network equipment can receive the uplink data transmitted from the terminal device within the cyclic prefix range, it can correctly decode that uplink data. Furthermore, to maintain orthogonality between uplink reference signals using different cyclic shifts, network equipment may also require that the received uplink reference signals be aligned in time. Therefore, in wireless communication systems (e.g., LTE / NR systems), a TA uplink mechanism is required to achieve uplink synchronization or to ensure time synchronization on the network equipment side.

[0036] To adapt to changes in terminal equipment usage scenarios and to achieve uplink synchronization in different scenarios, it is generally necessary to adjust the Terminal Adapter (TA). In some communication systems, both the initial and adjusted values ​​of the TA are communicated to the terminal equipment by the network equipment.

[0037] For example, an access network device sends a TA command to a terminal device, which allows the terminal device to coordinate the transmission of uplink channels and / or uplink signals, thereby enabling uplink signals from different terminal devices to reach the access network device. The uplink channels and / or uplink signals may include one or more of the following: a physical uplink shared channel (PUSCH), a physical uplink control channel (PUCCH), or a sounding reference signal (SRS).

[0038] In some cases, for example, if a terminal device cannot obtain TA adjustment parameters, it can determine that the TA needs to be adjusted. For example, when a terminal device moves within or between serving cells, it can measure the synchronization signal block (SSB) or estimate the arrival time to determine if TA adjustment is necessary. In other words, terminal devices have the ability to determine that TA adjustment is necessary without being notified by access network equipment.

[0039] If terminal equipment adjusts the Terminal Adapter (TA), but network equipment is unaware of that adjustment, various problems can arise. For example, access network equipment needs to calculate the TA adjustment value based on the uplink signal transmitted from the terminal equipment. If terminal equipment adjusts the TA but access network equipment is unaware of that adjustment, access network equipment cannot determine a reference point for the TA adjustment value provided by the network equipment. Alternatively, access network equipment may use the TA value before the terminal equipment autonomously adjusted the TA as a reference point, thereby preventing access network equipment from controlling the TA, or from controlling the TA accurately. As a result, network equipment loses control of the TA. In other words, the TA becomes completely controlled by the terminal equipment. When the TA is completely controlled by the terminal equipment, both the computational complexity and power consumption of the terminal equipment increase.

[0040] Figure 2 is a schematic flowchart of a wireless communication method according to an embodiment of the present invention, which is intended to solve the above-mentioned problem. The method shown in Figure 2 can be implemented using a core network device and a first device.

[0041] The core network equipment may include, for example, a location server. For example, the core network equipment may include an LMF.

[0042] The first device may include terminal equipment and / or first access network equipment. The first access network equipment may be access network equipment corresponding to the serving cell or adjacent cell of the terminal equipment.

[0043] The method shown in Figure 2 includes step S210.

[0044] In step S210, the core network device receives the first instruction information.

[0045] If the first device includes terminal equipment, the terminal equipment can transmit the first instruction information to the core network equipment through the first access network equipment. If the first device includes first access network equipment, the first access network equipment can transmit the first instruction information directly to the core network equipment.

[0046] The first instruction information may be related to one or more of the following: the autonomous TA adjustment capability information of the terminal device, the measurement information of the terminal device, or the TA information of the terminal device. Each of these will be explained below.

[0047] Information regarding the terminal device's ability to autonomously adjust its TA can be used to indicate the terminal device's ability to autonomously adjust its TA. This ability information may include, for example, one or more items such as whether the terminal device can autonomously adjust its TA and the timing at which the terminal device autonomously adjusts its TA. If the terminal device has the ability to autonomously adjust its TA, it must have certain computing and measurement capabilities to perform synchronization tracking in one or more cells or to estimate the arrival time of downlink pilots in one or more cells.

[0048] Furthermore, information regarding the capability of a terminal device to autonomously adjust its TA (Terminal Adapter) may be reported by the terminal device and / or the first access network device. For terminal devices, reporting this capability information is optional.

[0049] Furthermore, "autonomous adjustment" refers to the terminal device adjusting the TA without intervention from network equipment, or the terminal device adjusting the TA without being based on TA commands issued by network equipment. Therefore, "autonomous adjustment" is merely one possible expression. For example, "autonomous adjustment" in this specification may be replaced with automatic adjustment, self-adjustment, etc.

[0050] The measurement information may include information obtained from measurements of terminal equipment and / or access network equipment.

[0051] In some embodiments, the measurement information may include one or more items of the measured quantity and the arrival time measured by the terminal device.

[0052] The measured quantity may include the measurement results of signals transmitted between a terminal device and one or more access network devices. For example, the measured quantity may include one or more of the measurement results of signals transmitted between a terminal device and an access network device corresponding to a serving cell, and the measurement results of signals transmitted between a terminal device and an access network device corresponding to an adjacent cell.

[0053] The measurement results may include one or more of the following: reference signal received power (RSRP), reference signal time difference (RSTD), and relative time of arrival (RTOA).

[0054] Note that when terminal devices report measured values, some values ​​do not need to be reported. For example, the measured value of synchronization information does not need to be reported.

[0055] The arrival time measured by the terminal device can be estimated based on the arrival time of the downlink pilot. The downlink pilot may include a downlink reference signal. For example, the downlink pilot may include a downlink positioning reference signal. When the terminal device moves between two cells, the terminal device can estimate the arrival times of the downlink pilots for the two cells and thereby obtain the arrival time.

[0056] Compared to related technologies, terminal devices not only report the difference in arrival time but also the arrival time itself, allowing network devices to determine whether the terminal device autonomously adjusted the TA based on the arrival time.

[0057] The TA information of a terminal device may include information about the terminal device related to the TA. For example, the TA information may include one or more of the following: the first TA value adopted by the terminal device, the period during which the terminal device adopts the first TA value, and information about the TA timer.

[0058] The first TA value may be the TA value currently adopted by the terminal device. The term "currently" here may refer to the time when the terminal device reports the first TA value. Correspondingly, the period during which the terminal device adopts the first TA value may refer to the time between the start time of adopting the first TA value and the current time.

[0059] Parameters related to TA timers may include cell-level TA timers and / or specific TA timers of terminal equipment.

[0060] The first instruction information may relate to one or more terminal devices. For example, the first instruction information may relate to one or more items among the following: information on the ability to autonomously adjust the TA of one or more terminal devices, measurement information of one or more terminal devices, and TA information of one or more terminal devices. For example, if the first instruction information is transmitted from a first access network device, the first instruction information may relate to multiple terminal devices.

[0061] If terminal equipment can autonomously adjust the TA, the core network equipment can perform TA-related operations based on the received first instruction information. For example, the core network equipment can estimate whether or not the terminal equipment has self-adjusted the TA. Since the computing power of the core network equipment is higher than that of the terminal equipment, the computational load on the terminal equipment can be reduced by entrusting TA-related operations to the core network equipment. In addition, the core network equipment can acquire information from multiple access network equipment and perform TA-related operations by combining the information from multiple access network equipment, thereby improving the accuracy of the execution of TA-related operations. Furthermore, if the core network equipment includes a location server, the first instruction information also provides the basis for the core network equipment to perform location calculations for terminal equipment, thereby improving positioning quality and accuracy.

[0062] In some embodiments, if the first instruction information changes, the first device transmits the first instruction information. For example, if the first device includes an access network device, the access network device may transmit the first instruction information to the core network device if the first instruction information transmitted from the terminal device changes.

[0063] In some embodiments, if the first device includes a first access network device, the first access network device may transparently transfer the received first instruction information, or the first access network device may analyze or process the received first instruction information before transferring the processed first instruction information.

[0064] In some embodiments, a core network device may send or receive a first message, and in response, the first device may send first instruction information to the core network device. In other words, the transmission of the first instruction information may be triggered by an event, which may be the sending or receiving of a first message.

[0065] Optionally, the first message may be used to request positioning of the terminal device. That is, the first message may be used to initiate a positioning service request. For example, the first instruction information may be sent after the terminal device or location server has initiated a positioning service request.

[0066] Optionally, the first message may be used to request the acquisition of capability information of the terminal device. For example, if the core network device includes a location server, and the terminal device notifies the location server of relevant information, the location server can send the first message to the terminal device to request capability information. After receiving the first message, the terminal device can report its capability to autonomously adjust the TA.

[0067] If the first device includes an access network device, the first instruction information can be transmitted via NRPPa (New Radio Positioning Protocol A) signaling. Taking core network devices including a location server as an example, when notifying the location server of the first instruction information, the first access network device can notify the location server via NRPPa signaling of its ability to autonomously adjust the TA of terminal devices. Alternatively, when notifying the location server of the first instruction information, the first access network device can notify the location server via NRPPa signaling of cell-specific TA timers and / or terminal-specific TA timers of one or more terminal devices.

[0068] The core network device can determine the first information based on the first instruction information. The first information may relate to a second TA value autonomously adjusted by a terminal device, and the second TA value may be a TA value adjusted by the terminal device itself. For example, the first information may include one or more items among whether the terminal device autonomously adjusted the TA value, whether the terminal device adjusted the TA value to the second TA value, the difference between the second TA value and the first TA value, and the validity period of the second TA value.

[0069] The first information may be determined based on one or more of the following: the first relationship, the second relationship, the third relationship, the transmission delay between the terminal device and multiple access network devices, the location information of the terminal device, and the distance between the terminal device and each of the access network devices.

[0070] The first relationship is the correspondence between a measured quantity and a TA value. As mentioned above, the measured quantity may include the measurement result of a signal transmitted between a terminal device and one or more access network devices. The first relationship may be defined in a protocol. Taking RSRP as an example, if the protocol defines the correspondence between measured quantities such as RSRP and TA, then core network devices and / or terminal devices can determine the TA value based on the correspondence between RSRP and TA.

[0071] The second relationship may be a correspondence between the change in the measured quantity and the TA value. The second relationship may also be defined in the protocol. Taking measured quantities including RSRP as an example, if the protocol is based on a correspondence between the change in measured quantities such as RSRP and the TA, then core network equipment and / or terminal equipment can determine the TA value based on the correspondence between the change in RSRP and the TA.

[0072] As can be understood, the TA value essentially reflects the distance between the terminal device and the access network device within a cell, and the measured value can also reflect the distance between the terminal device and the access network device corresponding to each cell. Therefore, there is a correlation between the measured quantity and the TA value. Based on this, if a mapping between the measured quantity and the TA value, or between the change in the measured quantity and the change in the TA, is performed from the network side, the terminal device can autonomously adjust the TA based on the measured quantity, regardless of its position within the serving cell, and even if the terminal device moves to an adjacent cell. Therefore, the terminal device can monitor the measured quantity or the change in the measured quantity for each cell and thereby autonomously adjust the TA. Correspondingly, the network device can determine the status of the terminal device's autonomous TA adjustment (i.e., primary information) based on the measured quantity and / or the change in the measured quantity for each cell.

[0073] Furthermore, the measured quantities collected by terminal devices from various access network devices may vary depending on the location. Therefore, the first or second relationship can be presented in the form of a measured quantity map (e.g., an RSRP map), and terminal devices or core network devices can determine the second TA value through the measured quantity map.

[0074] The third relationship may be the relationship between the location of the terminal device and the TA value. In some embodiments, the location server can calculate the location of the terminal device based on the measured quantity and / or the change in the measured quantity included in the first instruction information, and estimate the TA value of the terminal device based on the location calculation result and the third relationship.

[0075] In some embodiments, the core network device can determine first information based on first instruction information when performing location calculation of terminal devices. After determining the first information, the core network device can perform location calculation of terminal devices. The following explanation will refer to Figure 3 and will use an example in which the core network device includes a location server.

[0076] When the location server recognizes that the terminal device can autonomously adjust the timing advance (TA), it takes this factor into account when performing calculation. As shown in FIG. 3, during position calculation, the location server acquires the time t3 when the access network device transmits a downlink signal and the time t4 when the access network device receives an uplink signal. If the location server can also acquire the time difference between the time t1 when the location server transmits an uplink signal and the time t0 when the location server receives a downlink signal (i.e., t1-t0), the location server can obtain the transmission delay d. As shown in FIG. 3, t2 is the transmission time of the uplink signal when TA is not considered. The location server may have information of t2. Therefore, t1-t0 can be determined as the value of t2-t0-TA. Based on this, the transmission delay d satisfies d=t4-t3-(t2-t0-TA).

[0077] When the location server recognizes that the terminal device can adjust TA, the location server treats TA as an uncertain value x TA during calculation, and solves x first based on information reported by a plurality of access network devices before performing position calculation TA For example, the location server can obtain simultaneous equations of transmission delays between the terminal device and a plurality of access network devices corresponding to a serving cell and neighboring cells. For base station i, the transmission delay d i is d i =t4 i -t3 i -(t2 i -t0 i -x TA ). t3 i indicates the time when access network device i transmits a downlink signal, t0 i indicates the time when the terminal device receives the downlink signal, t2 i indicates the time when the terminal device transmits the uplink signal, t4 i indicates the time when access network device i receives the uplink signal, and access network device i belongs to the plurality of access network devices.

[0078] Based on the transmission delay, the location server can perform the method shown in Figure 4 to calculate the TA according to the transmission delay. The method shown in Figure 4 includes steps S410 to S440.

[0079] In step S410, the location server d according to the TA value i The location server calculates the TA value. If the location server does not resolve the TA value, the location server can perform the location calculation based on the first TA value in the first instruction information.

[0080] In step S420, the location server calculates d i Alternatively, the TA search is determined based on the location. For example, the calculated d i By evaluating the confidence level, it is possible to determine whether or not the TA search has been completed.

[0081] In step S430, the location server is d i The TA value is adjusted or calculated based on this.

[0082] For the calculated TA, the location server may continue executing steps S420, S410, and S430 until the TA search is complete.

[0083] In step S440, the location server selects a TA based on the previous TA search. For example, the location server selects the most reliable d i You can select the corresponding TA. The selected TA may also be the second TA value.

[0084] After step S440, the location server can perform location calculations using the retrieved TA values.

[0085] Furthermore, if the terminal device has the ability to autonomously adjust its TA, the core network device can determine or estimate the terminal device's TA value, and can determine whether the terminal device has autonomously adjusted its TA value or how much the TA value has changed. If the terminal device lacks the ability to autonomously adjust its TA, the core network device does not need to determine or estimate the terminal device's TA value, thereby reducing the computational load on the core network device.

[0086] After determining the first information, the core network device can transmit the second instruction information to the first device. The recipient of the second instruction information (i.e., the first device) may be an access network device, for example, an access network device corresponding to a service cell. In other words, the core network device can notify the access network device of the situation in which the terminal device is autonomously adjusting the TA, thereby enabling the access network device to control the terminal device's TA.

[0087] In some embodiments, if the core network device decides that the terminal device will not autonomously adjust the TA, the core network device does not need to transmit the second instruction information.

[0088] The above describes in detail embodiments of the method of the present application. Below, the following describes in detail embodiments of the apparatus of the present application. It should be understood that the description of the method embodiments corresponds to the description of the apparatus embodiments. Therefore, for parts that are not described in detail, you can refer to the above-mentioned method embodiments.

[0089] Figure 5 is a schematic diagram of the core network device 500 according to an embodiment of the present invention. The core network device 500 may also include a receiving unit 510.

[0090] The receiving unit 510 is configured to receive first instruction information. The first instruction information relates to one or more of the following: measurement information of the terminal equipment, TA information of the terminal equipment, and autonomous TA adjustment capability information of the terminal equipment.

[0091] In some embodiments, the measurement information includes one or more of the measured quantity and the arrival time measured by the terminal device. The measured quantity includes the measurement result of the signal transmitted between the terminal device and one or more access network devices. The measurement result includes one or more of RSRP, RSTD, and RTOA.

[0092] In some embodiments, the TA information includes one or more items from among a first TA value adopted by the terminal device, the period during which the terminal device adopts the first TA value, and information regarding the TA timer.

[0093] In some embodiments, the receiving unit 510 is specifically configured to receive first instruction information in response to a core network device sending or receiving a first message, the first message being used to request the location of a terminal device and / or to request capability information of the terminal device.

[0094] In some embodiments, the core network device 500 is further configured to determine first information based on first instruction information, the first information relating to a second TA value autonomously adjusted by the terminal device.

[0095] In some embodiments, the first information is determined based on one or more of the following items: a first relationship between a measured quantity, including the measurement result of a signal transmitted between a terminal device and one or more access network devices, and the TA value of the terminal device; a second relationship between the amount of change in the measured quantity and the TA value; a third relationship between the position of the terminal device and the TA value; and the transmission delay between the terminal device and the multiple access network devices.

[0096] In some embodiments, the step of determining first information based on first instruction information includes the step of determining first information based on first instruction information in the process of calculating the location of a terminal device.

[0097] In some embodiments, if the core network equipment recognizes that the terminal equipment has the ability to autonomously adjust the TA, during the position calculation process, the TA value is an uncertain value x TA The transmission delay d from the terminal device to the access network device i is set to i is, d i =t4 i -t3 i -(t2 i -t0 i -x TA ) satisfies, t3 i This indicates the time when access network device i transmits a downlink signal, and t0 i This indicates the time when the terminal device receives the downlink signal, and t2 i This indicates the time when the terminal device transmits the uplink signal, t4 i This indicates the time when access network device i receives the uplink signal, and access network device i belongs to multiple access network devices. In the process of calculating the location of a terminal device, the step of determining the first information based on the first instruction information is to first determine x based on the first instruction information received during the process of calculating the location of the terminal device and transmitted from multiple access network devices. TA This includes the steps of solving the problem and then calculating the location of the terminal device.

[0098] In some embodiments, the core network device 500 is further configured to transmit second instruction information, which is used to point to the first information.

[0099] In some embodiments, the first information includes one or more of the following items: that the terminal device autonomously adjusted the TA value; that the terminal device adjusted the TA value to a second TA value; the difference between the second TA value and the first TA value adopted by the terminal device; and the effective time of the second TA value.

[0100] In selectable embodiments, the receiving unit 510 may be implemented as a transceiver 730. The core network device 500 may further include a processor 710 and memory 720, specifically shown in Figure 7.

[0101] Figure 6 is a schematic diagram of the communication device 600 according to an embodiment of the present application. The communication device 600 is the first device. The communication device 600 may include a transmitting unit 610.

[0102] The transmitting unit 610 is configured to transmit first instruction information to the core network equipment. The first instruction information relates to measurement information of the terminal equipment and one or more of the terminal equipment's TA information and the terminal equipment's autonomous TA adjustment capability information.

[0103] In some embodiments, the measurement information includes one or more of the measured quantity and the arrival time measured by the terminal equipment. The measured quantity includes the measurement result of the signal transmitted between the terminal equipment and one or more access network devices. The measurement result includes one or more of RSRP, RSTD, and RTOA.

[0104] In some embodiments, the TA information includes one or more items from among a first TA value adopted by the terminal device, the period during which the terminal device adopts the first TA value, and information regarding the TA timer.

[0105] In some embodiments, the transmitting unit 610 is specifically configured to transmit first instruction information in response to a core network device transmitting or receiving a first message, the first message being used to request positioning of a terminal device, and / or the first message being used to request acquisition of capability information of a terminal device.

[0106] In some embodiments, the communication device 600 is further configured to receive second instruction information transmitted from the core network device, the second instruction information being used to instruct the first information, the first information relating to a second TA value autonomously adjusted by the terminal device.

[0107] In some embodiments, the first information is determined based on one or more of the following items: a first relationship between a measured quantity, including the measurement result of a signal transmitted between the terminal device and one or more access network devices, and the terminal device's TA value; a second relationship between the change in the measured quantity and the TA value; a third relationship between the terminal device's position and the TA value; and the transmission delay between the terminal device and the multiple access network devices.

[0108] In some embodiments, the first information includes one or more items among that the terminal device autonomously adjusted the TA value, that the terminal device adjusted the TA value to a second TA value, the difference between the second TA value and the first TA value adopted by the terminal device, and the effective time of the second TA value.

[0109] In some embodiments, the first device includes terminal equipment and / or first access network equipment, the first access network equipment being an access network device corresponding to a serving cell or adjacent cell of the terminal equipment.

[0110] In selectable embodiments, the transmitting unit 610 may be implemented as a transceiver 730. The communication device 600 may further include a processor 710 and memory 720, specifically shown in Figure 7.

[0111] Figure 7 shows a schematic diagram of the structure of a communication device according to an embodiment of the present application. The dashed lines in Figure 7 indicate that the unit or module is optional. The device 700 may be configured to carry out the method described in the embodiment of the above method. The device 700 may be a chip, a core network device, or a communication device.

[0112] The apparatus 700 may include one or more processors 710. The processors 710 can support the apparatus 700 in implementing the methods described in the embodiments of the above method. The processors 710 may be general-purpose processors or dedicated processors. For example, the processor may be a central processing unit (CPU). Alternatively, the processor may be another general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA), or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, etc. The general-purpose processor may be a microprocessor or any conventional processor.

[0113] The apparatus 700 may further include one or more memories 720. The memories 720 store programs that can be executed by the processor 710, enabling the processor 710 to perform the methods described in the embodiments of the above method. The memories 720 may be independent of the processor 710 or integrated with the processor 710.

[0114] The device 700 may include a transceiver 730. The processor 710 can communicate with other devices or chips through the transceiver 730. For example, the processor 710 can exchange data with other devices or chips through the transceiver 730.

[0115] Embodiments of the present application also provide a computer-readable storage medium for storing a program. This computer-readable storage medium can be applied to a core network device or communication device according to embodiments of the present application, and the stored program enables a computer to execute a method executable by the core network device or communication device according to embodiments of the present application.

[0116] Embodiments of the present application also provide a computer program product. This computer program product includes a program. This computer program product is applicable to core network equipment or communication equipment according to embodiments of the present application, and the program enables a computer to execute methods that can be performed by the core network equipment or communication equipment in embodiments of the present application.

[0117] Embodiments of the present application also provide a computer program. This computer program can be applied to core network equipment or communication equipment according to embodiments of the present application, and enables a computer to execute methods that can be performed by the core network equipment or communication equipment in embodiments of the present application.

[0118] It should be understood that, in this application, the terms “system” and “network” may be used interchangeably. Furthermore, the terminology used in this application is for the purpose of describing specific embodiments of this application and is not intended to limit it. Terms such as “first,” “second,” “third,” and “fourth” in the specification, claims, and accompanying drawings do not indicate a specific order but are used to distinguish different subjects. Also, the terms “include,” “have,” and any variations thereof are intended to cover non-exclusive inclusion.

[0119] In the embodiments of the present application, the “instruction” referred to may indicate direct instruction, indirect instruction, or a related relationship. For example, when A instructs B, it may mean that A instructs B directly. For example, when B can be obtained through A, it may also mean that A indirectly instructs B. For example, when A instructs C and B can be obtained through C, it may also mean that there is a related relationship between A and B.

[0120] In the embodiments of this application, "B corresponding to A" indicates that B is associated with A and that B can be determined according to A. However, it should be understood that determining B according to A does not mean determining B according to A alone, but rather that B can be determined according to A and / or other information.

[0121] In the embodiments of this application, the term "corresponding" may mean a direct or indirect correspondence between two objects, an association between two objects, or a relationship such as referential and referred, or constituent and constituted.

[0122] In the embodiments of this application, the term “includes” may refer to direct or indirect inclusion. Optionally, the term “includes” as used in the embodiments of this application may be replaced with “indicate” or “used to determine.” For example, “A includes B” may be replaced with “A indicates B” or “A is used to determine B.”

[0123] In the embodiments of this application, “predefined” or “pre-configured” means pre-storing in a device (including, for example, terminal devices and network devices) a form that can indicate the corresponding code, form, or related information, or it may be implemented by other means available for indicating the related information, and this application does not limit the specific embodiments thereof. For example, “predefined” may mean defined in a protocol.

[0124] In the embodiments of this application, the term “protocol” may refer to a standard protocol in the field of communications, and may include, for example, the LTE protocol, the NR protocol, and related protocols applicable to future communications systems, but is not limited thereto.

[0125] In the embodiments of this application, the term "and / or" simply describes the relationship between related objects, indicating that three types of relationships may exist. For example, A and / or B can cover three situations: A existing only, A and B existing simultaneously, or B existing only. In this specification, the symbol " / " generally indicates that the related objects before and after the " / " have an "or" relationship.

[0126] In the various embodiments of the present application, the sequence numbers of the processes described above do not indicate the order of execution and do not impose any restrictions on the implementation process of the embodiments of the present application. The execution order of each process should be determined based on its function and inherent logic.

[0127] In some embodiments relating to this application, it should be understood that the disclosed systems, devices, and methods can be implemented in other forms. For example, the embodiments of the devices described above are merely illustrative. For example, the division of units is merely a division according to logical function. In actual implementations, different division methods may be used. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not implemented. On the other hand, the mutual coupling, direct coupling, or communication connection illustrated or discussed may be an indirect coupling or communication connection via an electrical, mechanical, or other form of interface, device, or unit.

[0128] Units described as separate components may or may not be physically separated, and components shown as units may or may not be physical units; that is, these components may be located in one place or distributed across multiple network units. Depending on the actual needs, some or all of the units can be selected to achieve the objectives of the means of this embodiment.

[0129] Furthermore, the functional units in the various embodiments of the present application may be integrated into a single processing unit, each unit may exist physically separately, and 22 or more functional units may be integrated into a single unit.

[0130] In the above embodiments, the functional unit may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented by software, the unit may be implemented in whole or in part in the form of a computer program product. A computer program product includes one or more computer instructions. When the computer program instructions are loaded into a computer and executed, all or part of the process or function described in the embodiments of the present application is generated. The computer may be a general-purpose computer, a dedicated computer, a computer network, or other programmable device. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by wired means (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless means (such as infrared, radio, microwave). The computer-readable storage medium may be any available medium that a computer can read, or a data storage device such as a server or data center that integrates one or more available media. The usable media may be magnetic media (such as floppy disks, hard disks, and magnetic tapes), optical media (such as digital versatile discs (DVDs)), or semiconductor media (such as solid state disks (SSDs)).

[0131] Although only specific embodiments of the present application have been described above, the scope of protection of this application is not limited thereto. A person skilled in the art will readily conceive of modifications or substitutions without departing from the technical scope disclosed herein. These modifications or substitutions should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be the same as the scope of protection of the claims. [Explanation of symbols]

[0132] 100 Wireless Communication Systems 110 Network Equipment 120 terminal devices 210 steps 410 steps 420 steps 430 steps 440 steps 500 Core Network Devices 510 Receiving Unit 600 communication devices 610 Transmitter Unit 700 equipment 710 Processor 720 memory 730 Transmitter / Receiver

Claims

1. A method of wireless communication, The process includes the step of a core network device receiving first instruction information, The above-mentioned first instruction information is, Measurement information from terminal devices and The timing advance (TA) information of the aforementioned terminal device, The autonomous TA adjustment capability information of the aforementioned terminal device and A wireless communication method characterized by relating to one or more of the following items.

2. The measurement information includes one or more of the measured quantity and the arrival time measured by the terminal device. The method according to claim 1, wherein the measured quantity includes the measurement result of a signal transmitted between the terminal device and one or more access network devices, and the measurement result includes one or more of the reference signal received power (RSRP), reference signal time difference (RSTD), and relative arrival time (RTOA).

3. The aforementioned TA information is, The first TA value adopted by the aforementioned terminal device, The period during which the terminal device adopts the first TA value, Information regarding the TA timer and The method according to 1 or 2, characterized in that it includes one or more of the items.

4. The step of the core network device receiving the first instruction information is as follows: The process includes the step of the core network device receiving first instruction information in response to the core network device transmitting or receiving a first message, The method according to any one of claims 1 to 3, characterized in that the first message is used to request positioning of the terminal device, and / or the first message is used to request capability information of the terminal device.

5. The core network device further includes the step of determining first information based on the first instruction information, The method according to any one of claims 1 to 4, characterized in that the first information relates to a second TA value autonomously adjusted by the terminal device.

6. The first piece of information mentioned above is, A first relationship between the measured quantity and the TA value of the terminal device, wherein the measured quantity includes the measurement result of a signal transmitted between the terminal device and one or more access network devices. The second relationship between the change in the measured quantity and the TA value, The third relationship between the position of the terminal device and the TA value, and Transmission delay between the terminal device and multiple access network devices The method according to 5, characterized in that it is determined based on one or more of the following items.

7. The step in which the core network device determines the first information based on the first instruction information is: The method according to 5 or 6, characterized in that the core network device includes a step of determining the first information based on the first instruction information in the process of calculating the location of the terminal device.

8. When the core network device recognizes that the terminal device has the ability to autonomously adjust the TA, in the position calculation process, the TA value becomes an uncertain value x ＴＡ The transmission delay d from the terminal device to the access network device i is set to the above, and the transmission delay d from the terminal device to the access network device i is set to the above. ｉ teeth, d ｉ =t4 ｉ -t3 ｉ -(t2 ｉ -t0 ｉ -x ＴＡ ) Satisfying the conditions, t3 ｉ indicates the time at which said access network device i transmits a downlink signal, and t0 ｉ indicates the time at which said terminal device receives said downlink signal, and t2 ｉ indicates the time at which said terminal device transmits an uplink signal, and t4 ｉ indicates the time at which said access network device i receives said uplink signal, wherein said access network device i belongs to a plurality of access network devices, In the process by which the core network device calculates the location of the terminal device, the step of determining the first information based on the first instruction information is, in the process by which the core network device calculates the location of the terminal device, first x based on the first instruction information transmitted from the received plurality of access network devices ＴＡ The method according to the 7th, characterized by including the step of calculating and then calculating the location of the terminal device.

9. The step further includes receiving second instruction information transmitted by the core network device, The method according to any one of claims 5 to 8, characterized in that the second instruction information is used to indicate the first information.

10. The first piece of information mentioned above is, The aforementioned terminal device autonomously adjusted the TA value, The terminal device adjusted the TA value to the second TA value, The difference between the second TA value and the first TA value adopted by the terminal device, The validity period of the second TA value The method according to any one of claims 5 to 9, characterized in that it includes one or more of the items.

11. A method of wireless communication, The process includes the step of the first device transmitting first instruction information to the core network device, The above-mentioned first instruction information is, Measurement information from terminal devices and The TA information of the aforementioned terminal device, Capability information for autonomously adjusting the TA of the aforementioned terminal device and A wireless communication method characterized by relating to one or more of the following.

12. The measurement information includes one or more of the measured quantity and the arrival time measured by the terminal device. The method according to 11, wherein the measured quantity includes the measurement result of a signal transmitted between the terminal device and one or more access network devices, and the measurement result includes one or more of RSRP, RSTD, and RTOA.

13. The aforementioned TA information is, The first TA value adopted by the aforementioned terminal device, The period during which the terminal device adopts the first TA value, Information regarding the TA timer and The method according to 11 or 12, characterized by including one or more of the items.

14. The step of the first device transmitting first instruction information to the core network device is: The process includes the step of the first device transmitting the first instruction information to the core network device in response to the first device transmitting or receiving the first message, The method according to any one of claims 11 to 13, characterized in that the first message is used to request positioning of the terminal device, and / or the first message is used to request capability information of the terminal device.

15. The first device further includes the step of receiving second instruction information transmitted from the core network device, The second instruction information is used to indicate the first information. The method according to any one of claims 11 to 14, characterized in that the first information relates to a second TA value autonomously adjusted by the terminal device.

16. The first piece of information mentioned above is, A first relationship between the measured quantity and the TA value of the terminal device, the first relationship including the measurement result of a signal transmitted by the terminal device and one or more access network devices, The second relationship between the change in the measured quantity and the TA value, The third relationship between the position of the terminal device and the TA value, and Transmission delay between the terminal device and multiple access network devices The method according to 15, characterized in that it is determined based on one or more of the following items.

17. The first piece of information mentioned above is, The aforementioned terminal device autonomously adjusted the TA value, The terminal device adjusted the TA value to the second TA value, The difference between the second TA value and the first TA value adopted by the terminal device, The validity period of the second TA value The method according to 15 or 16, characterized in that it includes one or more of the items.

18. The method according to any one of claims 11 to 17, characterized in that the first device includes the terminal device and / or the first access network device, and the first access network device is an access network device corresponding to the serving cell or adjacent cell of the terminal device.

19. It is a core network device, Includes a receiving unit configured to receive first instruction information, The above-mentioned first instruction information is, Measurement information from terminal devices and The timing advance TA information of the aforementioned terminal device, Capability information for autonomously adjusting the TA of the aforementioned terminal device and A core network device characterized by being related to one or more of the following items.

20. The measurement information includes one or more of the measured quantity and the arrival time measured by the terminal device. The core network device according to claim 19, wherein the measured quantity includes the measurement result of a signal transmitted between the terminal device and one or more access network devices, and the measurement result includes one or more of the reference signal received power RSRP, reference signal time difference RSTD, and relative arrival time RTOA.

21. The aforementioned TA information is, The first TA value adopted by the aforementioned terminal device, The duration for which the terminal device adopts the first TA value, Information regarding the TA timer and The core network device according to claim 19 or 20, characterized in that it includes one or more of the items.

22. The receiving unit is, The core network device is configured to receive first instruction information in response to sending or receiving a first message. The core network device according to any one of claims 19 to 21, characterized in that the first message is used to request positioning of the terminal device and / or the first message is used to request capability information of the terminal device.

23. The aforementioned core network equipment is It is further configured to determine first information based on the first instruction information, The core network device according to any one of claims 19 to 22, characterized in that the first information relates to a second TA value autonomously adjusted by the terminal device.

24. The first piece of information mentioned above is, A first relationship between a measured quantity, which includes the measurement result of a signal transmitted between the terminal device and one or more access network devices, and the TA value of the terminal device. The second relationship between the change in the measured quantity and the TA value, The third relationship between the position of the terminal device and the TA value, and Transmission delay between the terminal device and multiple access network devices The core network device according to claim 23, characterized in that it is determined based on one or more of the following items.

25. Determining the first information based on the first instruction information means The core network device according to claim 23 or 24, characterized in that the process for calculating the location of the terminal device includes a step of determining the first information based on the first instruction information.

26. If the core network device knows that the terminal device has the ability to autonomously adjust the TA, then in the position calculation process, the TA value is an uncertain value x ＴＡ The transmission delay d from the terminal device to the access network device i is set to the above, and the transmission delay d from the terminal device to the access network device i is set to the above. ｉ teeth, d ｉ =t4 ｉ -t3 ｉ -(t2 ｉ -t0 ｉ -x ＴＡ ) Satisfying the conditions, t3 ｉ This indicates the time when the access network device i transmits the downlink signal, and t0 ｉ t2 indicates the time when the terminal device receives the downlink signal. ｉ This indicates the time when the terminal device transmits the uplink signal, and t4 ｉ This indicates the time at which the access network device i receives the uplink signal, and the access network device i belongs to a plurality of access network devices. In the process of calculating the location of the terminal device, the step of determining the first information based on the first instruction information is, in the process of calculating the location of the terminal device, first x based on the first instruction information transmitted from the received plurality of access network devices ＴＡ The core network device according to claim 25, characterized by including the step of calculating and then calculating the location of the terminal device.

27. The aforementioned core network equipment is Further configured to transmit second instruction information, The core network device according to any one of claims 23 to 26, characterized in that the second instruction information is used to indicate the first information.

28. The first piece of information mentioned above is, The aforementioned terminal device autonomously adjusted the TA value, The terminal device adjusts the TA value to the second TA value, The difference between the second TA value and the first TA value adopted by the terminal device, The validity period of the second TA value A core network device according to any one of paragraphs 23 to 27, characterized in that it includes one or more of the above.

29. It is a communication device, The aforementioned communication device is the first device, and the aforementioned communication device is Includes a transmitting unit configured to transmit first instruction information to core network equipment, The above-mentioned first instruction information is, Measurement information from terminal devices and The timing advance TA information of the aforementioned terminal device, Capability information for autonomously adjusting the TA of the aforementioned terminal device and A communication device characterized by being related to one or more of the following items.

30. The measurement information includes one or more of the measured quantity and the arrival time measured by the terminal device. The communication device according to claim 29, wherein the measured quantity includes the measurement result of a signal transmitted between the terminal device and one or more access network devices, and the measurement result includes one or more of the reference signal received power RSRP, reference signal time difference RSTD, and relative arrival time RTOA.

31. The aforementioned TA information is, The first TA value adopted by the aforementioned terminal device, The duration for which the terminal device adopts the first TA value, Information regarding the TA timer and The communication device according to claim 29 or 30, characterized in that it includes one or more of the items.

32. The aforementioned transmission unit, The core network device is configured to receive the first instruction information in response to sending or receiving the first message. The communication device according to any one of claims 29 to 31, characterized in that the first message is used to request positioning of the terminal device, and / or the first message is used to request capability information of the terminal device.

33. It is further configured to receive second instruction information transmitted from the core network equipment, The communication device according to any one of claims 29 to 32, characterized in that the second instruction information is used to indicate the first information, and the first information relates to a second TA value autonomously adjusted by the terminal device.

34. The first piece of information mentioned above is, A first relationship between a measured quantity, which includes the measurement result of a signal transmitted between the terminal device and one or more access network devices, and the TA value of the terminal device. The second relationship between the change in the measured quantity and the TA value, The third relationship between the position of the terminal device and the TA value, and Transmission delay between the terminal device and multiple access network devices The communication device according to claim 33, characterized in that it is determined based on one or more of the following items.

35. The first piece of information mentioned above is, The aforementioned terminal device autonomously adjusted the TA value, The terminal device adjusts the TA value to the second TA value, The difference between the second TA value and the first TA value adopted by the terminal device, The validity period of the second TA value The communication device according to claim 33 or 34, characterized in that it includes one or more of the items.

36. The communication device according to any one of claims 29 to 35, characterized in that the first device includes the terminal device and / or the first access network device, and the first access network device is an access network device corresponding to the serving cell or adjacent cell of the terminal device.

37. A core network device comprising memory and a processor, wherein the memory is configured to store a program, and the processor is configured to cause the core network device to execute the method according to any one of claims 1 to 10 by calling the program in the memory.

38. A communication device comprising a memory and a processor, wherein the memory is configured to store a program, and the processor is configured to execute the method according to any one of claims 11 to 18 by calling the program in the memory.

39. An apparatus characterized by including a processor configured to cause the apparatus to execute the method described in any one of claims 11 to 18 by calling a program from memory.

40. A chip comprising a processor configured to cause a device on which the chip is mounted to execute a method according to any one of claims 11 to 18 by calling a program from memory.

41. A computer-readable storage medium characterized in that it stores a program that causes a computer to execute the method described in any one of claims 11 to 18.

42. A computer program product characterized by including a program that causes a computer to execute the method described in any one of claims 11 to 18.

43. A computer program characterized by causing a computer to execute the method described in any one of claims 11 to 18.

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