TA updating method and device, terminal and network side equipment

Abstract

The invention provides a TA updating method and device, a terminal and network side equipment, and relates to the field of communication, and the TA updating method comprises the steps that the terminal receives related configuration for automatically updating the TA from the network side equipment; wherein the related configuration comprises at least one of the following items: the terminal automatically updates a cell list of the TA; and the terminal automatically updates the reference signal received power (RSRP) threshold value of the TA. The TA updating method can ensure the effectiveness of automatically updating the TA.

Description

Technical Field

[0001] This application relates to the field of communications, and more particularly, to a TA update method, apparatus, terminal, and network-side device. Background Art

[0002] Related technologies have further enhanced the uplink (UL) positioning of the Radio Resource Control Inactive (RRC_INACTIVE) state, and a terminal can continuously transmit Sounding Reference Signals (SRS) within a validity area. In addition, if the terminal supports autonomous timing advance (TA) update and is configured with an autonomous TA adjustment enabled indication, the terminal can automatically update the TA when cell reselection or cell handover occurs, for transmitting SRS.

[0003] However, if the cell in the validity area is far from the last serving cell (i.e., the cell where the SRS configuration is sent), since the accuracy and effectiveness of the TA automatically updated by the terminal are low, the terminal is not suitable for automatically updating the TA. However, since some cells in related technologies can be automatically updated while some cannot, and the terminal in the RRC_INACTIVE state usually maintains the effectiveness of the TA of the last serving cell, there are doubts about the actual effectiveness of the TA after automatic update by the terminal. Summary of the Invention

[0004] Embodiments of this application provide a TA update method, apparatus, terminal, and network-side device, which can ensure the effectiveness of automatically updating the TA.

[0005] In a first aspect, a TA update method is provided, including:

[0006] The terminal receives relevant configurations for automatically updating the TA from a network-side device;

[0007] Wherein, the relevant configurations include at least one of the following:

[0008] A cell list for the terminal to automatically update the TA;

[0009] A Reference Signal Received Power (RSRP) threshold for the terminal to automatically update the TA.

[0010] In a second aspect, a TA update method is provided, including:

[0011] The network-side device sends relevant configurations for automatically updating the TA to the terminal;

[0012] Among them, the relevant configuration includes at least one of the following:

[0013] The terminal automatically updates the cell list of the TA;

[0014] The terminal automatically updates the reference signal received power (RSRP) threshold of the TA.

[0015] In a third aspect, a TA update device is provided, including:

[0016] A communication unit, configured to receive the relevant configuration for automatically updating the TA from a network-side device;

[0017] Among them, the relevant configuration includes at least one of the following:

[0018] The terminal automatically updates the cell list of the TA;

[0019] The terminal automatically updates the reference signal received power (RSRP) threshold of the TA.

[0020] In a fourth aspect, a TA update device is provided, including:

[0021] A communication unit, configured to send the relevant configuration for automatically updating the timing advance (TA) to a terminal;

[0022] Among them, the relevant configuration includes at least one of the following:

[0023] The terminal automatically updates the cell list of the TA;

[0024] The terminal automatically updates the reference signal received power (RSRP) threshold of the TA.

[0025] In a fifth aspect, a terminal is provided. The terminal includes a processor and a memory. The memory stores a program or instruction that can run on the processor. When the program or instruction is executed by the processor, the steps of the method described in the first aspect are implemented.

[0026] In a sixth aspect, a terminal is provided, including a processor and a communication interface. Among them, the communication interface is configured to receive the relevant configuration for automatically updating the TA from a network-side device;

[0027] Among them, the relevant configuration includes at least one of the following:

[0028] The terminal automatically updates the cell list of the TA;

[0029] The terminal automatically updates the reference signal received power (RSRP) threshold of the TA.

[0030] In a seventh aspect, a network-side device is provided. The network-side device includes a processor and a memory. The memory stores a program or instructions that can run on the processor. When the program or instructions are executed by the processor, the steps of the method described in the second aspect are implemented.

[0031] In an eighth aspect, a network-side device is provided, including a processor and a communication interface. The communication interface is configured to send the relevant configuration for automatically updating the timing advance (TA) to a terminal.

[0032] Wherein, the relevant configuration includes at least one of the following:

[0033] The cell list for the terminal to automatically update the TA;

[0034] The reference signal received power (RSRP) threshold for the terminal to automatically update the TA.

[0035] In a ninth aspect, a readable storage medium is provided. A program or instructions are stored on the readable storage medium. When the program or instructions are executed by a processor, the steps of the method described in the first aspect are implemented, or the steps of the method described in the second aspect are implemented.

[0036] In a tenth aspect, a wireless communication system is provided, including a terminal and a network-side device. The terminal can be used to execute the steps of the method described in the first aspect, and the network-side device can be used to execute the steps of the method described in the second aspect.

[0037] In an eleventh aspect, a chip is provided. The chip includes a processor and a communication interface. The communication interface is coupled to the processor. The processor is configured to run a program or instructions to implement the method described in the first aspect, or implement the method described in the second aspect.

[0038] In a twelfth aspect, a computer program / program product is provided. The computer program / program product is stored in a storage medium. The program / program product is executed by at least one processor to implement the steps of the method described in the first aspect, or implement the steps of the method described in the second aspect.

[0039] In an embodiment of the present application, the terminal receives the relevant configuration for automatically updating the TA from the network-side device. Wherein, the relevant configuration includes at least one of the following: the cell list for the terminal to automatically update the TA; the reference signal received power (RSRP) threshold for the terminal to automatically update the TA. That is to say, the terminal can obtain the relevant configuration for automatically updating the TA, make a judgment on automatically updating the TA based on the relevant configuration, and determine the validity of the automatic update in advance according to the relevant configuration, so as to ensure the validity of automatically updating the TA. Description of the Drawings

[0040] To more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the accompanying drawings required for the description of the embodiments of the present application. Obviously, the accompanying drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can also be obtained based on these drawings.

[0041] Figure 1 It is a schematic diagram of a communication system architecture provided by an embodiment of the present application.

[0042] Figure 2 It is a schematic flowchart of a TA update method provided by an embodiment of the present application.

[0043] Figure 3 It is a schematic block diagram of a TA update device provided by an embodiment of the present application.

[0044] Figure 4 It is a schematic block diagram of another TA update device provided by an embodiment of the present application.

[0045] Figure 5 It is a schematic block diagram of a communication device provided by an embodiment of the present application.

[0046] Figure 6 It is a schematic diagram of the hardware structure of a terminal provided by an embodiment of the present application.

[0047] Figure 7 It is a schematic block diagram of a network-side device provided by an embodiment of the present application. Detailed implementation manners

[0048] The following will clearly describe the technical solutions in the embodiments of the present application in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are some, rather than all, of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present application.

[0049] The terms "first", "second", etc. in this application are used to distinguish similar objects, rather than to describe a specific order or sequence. It should be understood that such terms can be interchanged under appropriate circumstances, so that the embodiments of this application can be implemented in an order other than those illustrated or described herein. The objects distinguished by "first" and "second" are usually of the same type, and do not limit the number of objects. For example, the first object can be one or multiple. In addition, "or" in this application means at least one of the connected objects. For example, "A or B" covers three scenarios, namely, Scenario 1: including A and not including B; Scenario 2: including B and not including A; Scenario 3: including both A and B. The character " / " generally indicates that the associated objects before and after are in an "or" relationship.

[0050] The term "indication" in this application can be either a direct indication (or an explicit indication) or an indirect indication (or an implicit indication). Among them, a direct indication can be understood as that the sender clearly informs the receiver of specific information, operations to be performed, or request results, etc. in the sent indication; an indirect indication can be understood as that the receiver determines the corresponding information according to the indication sent by the sender, or makes a judgment and determines the operations to be performed or request results, etc. according to the judgment result.

[0051] It is worth noting that the technology described in the embodiments of this application is not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA), or other systems. The terms "system" and "network" in the embodiments of this application are often used interchangeably. The described technology can be used not only in the above-mentioned systems and radio technologies, but also in other systems and radio technologies. The following description describes the New Radio (NR) system for example purposes, and uses NR terms in most of the following descriptions, but these technologies can also be applied to systems other than the NR system, such as the 6th Generation (6G) communication system.

[0052] Figure 1 It is a schematic diagram of a communication system architecture provided by an embodiment of the present application.

[0053] Such as Figure 1 As shown, the communication system architecture includes a terminal 11 and a network-side device 12.

[0054] Among them, the terminal 11 can be a mobile phone, a tablet personal computer, a laptop computer, a notebook computer, a personal digital assistant (PDA), a handheld computer, a netbook, an ultra-mobile personal computer (UMPC), a mobile internet device (MID), an augmented reality (AR), a virtual reality (VR) device, a robot, a wearable device, an aircraft, a vehicle user equipment (VUE), a shipborne device, a pedestrian user equipment (PUE), a smart home (home appliances with wireless communication functions, such as refrigerators, TVs, washing machines or furniture, etc.), a game console, a personal computer (PC), a teller machine or a self-service machine, etc. Wearable devices include: smart watches, smart bracelets, smart earphones, smart glasses, smart jewelry (smart bracelets, smart bracelets, smart rings, smart necklaces, smart anklets, smart ankle chains, etc.), smart wristbands, smart clothing, etc. Among them, the vehicle user equipment can also be referred to as a vehicle terminal, a vehicle controller, a vehicle module, a vehicle component, a vehicle chip or a vehicle unit, etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiments of the present application.

[0055] The network-side device 12 may include an access network device or a core network device.

[0056] Among them, the access network device can also be referred to as a Radio Access Network (RAN) device, a radio access network function, or a radio access network unit. The access network device can include a base station, a Wireless Local Area Network (WLAN) Access Point (AP), or a Wireless Fidelity (WiFi) node, etc. Among them, the base station can be referred to as Node B (NB), Evolved Node B (eNB), the next generation Node B (gNB), New Radio Node B (NR Node B), access point, Relay Base Station (RBS), Serving Base Station (SBS), Base Transceiver Station (BTS), radio base station, radio transceiver, Basic Service Set (BSS), Extended Service Set (ESS), home Node B (HNB), home evolved Node B, Transmission Reception Point (TRP), or some other suitable term in the art. As long as the same technical effect is achieved, the base station is not limited to specific technical terms. It should be noted that in the embodiments of this application, only the base station in the NR system is taken as an example for introduction, and the specific type of the base station is not limited.

[0057] To facilitate a better understanding of the embodiments of this application, the related technologies of this application are described.

[0058] (1) Low Power and High Accuracy Positioning (LPHAP) in R18.

[0059] SA1 introduced LPHAP use cases and requirements for industrial Internet of Things scenarios. Low power and high accuracy positioning is an indispensable part of quite a number of industrial applications. Example target applications of low power and high accuracy positioning are asset tracking, vehicle tracking, and tool tracking in process automation. The following table gives the requirements for each LPHAP use case.

[0060] Table 1

[0061]

[0062] As shown in Table 1, the specific use cases are as follows:

[0063] 1. Process automation: Dolly tracking (outdoor).

[0064] 2. Process automation: Asset tracking.

[0065] 3. Flexible modular assembly area: Tool tracking in flexible, modular assembly areas in smart factories.

[0066] 4. Process automation: Sequence container (Intralogistics).

[0067] 5. Process automation: Palette tracking (e.g. in turbine construction).

[0068] 6. Flexible modular assembly area: Tracking of workpiece (in- and outdoor) in assembly area and warehouse.

[0069] 7. Flexible modular assembly area: Tool assignment (assign tool to vehicles in a production line, left / right) in flexible, modular assembly area in smart factories.

[0070] 8. Flexible modular assembly area: Positioning of autonomous vehicles for monitoring purposes (vehicles in line, distance 1.5 meter).

[0071] 9. (Intra-)logistics: Asset tracking.

[0072] In Release 18, the positioning project focuses on the study of Use Case 6. This use case requires an accuracy of 1 m, a positioning service interval of 15 s to 30 s, and a battery life of up to 6 to 12 months. In particular, the battery life poses a great challenge to power saving at the terminal. For this reason, in Release 18, it is introduced that the terminal can continuously transmit SRS in the validity area. In addition, if the terminal supports autonomous TA update and the network is configured with the autonomous TA-AdjustmentEnabled indication, the terminal can automatically update the TA when cell reselection occurs for transmitting SRS.

[0073] (2) Autonomous TA update.

[0074] The autonomous TA update mechanism in Release 18 LPHAP positioning is as follows. The network configures the UE with the area SRS configuration in the RRC Release message and indicates whether the UE is allowed to perform autonomous TA update in this area per this area SRS configuration.

[0075] Exemplarily, the format of the RRC Release message is:

[0076]

[0077]

[0078] It is worth noting that Release 18 further enhances the UL positioning of RRC_INACTIVE. The terminal can continuously transmit SRS in the validity area. If the terminal supports autonomous TA update and the network is configured with the autonomous TA-AdjustmentEnabled indication, the terminal can automatically update the TA when cell reselection occurs for transmitting SRS.

[0079] If the cell in the validity area is far from the last serving cell (i.e., the cell that sends the SRS configuration), the terminal is not suitable for automatic TA update due to the low accuracy and effectiveness of the TA automatically updated by the terminal. That is, some cells can be automatically updated, while some cells cannot be automatically updated. However, the current automatic TA update indication does not distinguish.

[0080] In addition, the TA validity maintained by the terminal entering RRC_INACTIVE is usually that of the last serving cell, which also affects the actual validity of the TA after the terminal automatically updates it.

[0081] In view of this, the embodiment of the present application provides a TA update method, which can ensure the effectiveness of automatically updating the TA. Specifically, the TA update method provided by the embodiment of the present application can solve the problem that when the cell in the validity area is far from the cell that receives the validity area-related configuration, it is not suitable for the terminal to automatically update the TA, that is, some cells can be automatically updated, while some cells cannot be automatically updated, making the automatic TA update more effective and meaningful.

[0082] The following will combine the accompanying drawings to detail the TA update method provided by the embodiment of the present application through some embodiments and their application scenarios.

[0083] Figure 2 is a schematic flowchart of the TA update method 200 according to the embodiment of the present application.

[0084] As Figure 2 shown, the TA update method 200 may include at least some of the following:

[0085] S210, the terminal receives the relevant configuration for automatically updating the TA from the network-side device;

[0086] Among them, the relevant configuration includes at least one of the following:

[0087] The cell list for the terminal to automatically update the TA;

[0088] The reference signal receiving power (RSRP) threshold for the terminal to automatically update the TA.

[0089] In this embodiment, the terminal can make a judgment on automatically updating the TA based on the relevant configuration, thereby ensuring the effectiveness of automatically updating the TA.

[0090] Exemplarily, the terminal has the ability to automatically update the TA.

[0091] That is to say, when the terminal has the ability to automatically update the TA, the terminal receives the relevant configuration from the network device.

[0092] In some embodiments, the RSRP threshold is the threshold corresponding to the cell where the terminal automatically updates the TA.

[0093] In other words, the RSRP threshold is related to the specific cell where the terminal automatically updates the TA.

[0094] Exemplarily, the cell list includes at least one cell, and the RSRP threshold includes the threshold corresponding to each cell in the at least one cell. For example, assuming the cell list includes cell a and cell b, if the automatic update of TA occurs when reselecting / handoff from the first cell to cell a, the RSRP threshold is the threshold A corresponding to cell a; if the automatic update of TA occurs when reselecting / handoff from the first cell to cell b, the RSRP threshold is the threshold B corresponding to cell b.

[0095] In some embodiments, the relevant configuration further includes an indication allowing the terminal to automatically update the TA.

[0096] In some embodiments, method 200 further includes:

[0097] The terminal reselects or hands off from the first cell to the second cell.

[0098] In some embodiments, method 200 further includes:

[0099] When a first condition is satisfied, the terminal automatically updates the TA during the cell reselection / handoff process:

[0100] Wherein, the first condition includes at least one of the following:

[0101] The network allows the terminal to automatically update the TA;

[0102] The cell list includes the second cell;

[0103] The time difference between the reference signals received by the terminal in the first cell and the second cell is greater than or equal to the value obtained by dividing the cyclic prefix (CP) by 4;

[0104] The RSRP change value is less than the RSRP threshold.

[0105] Exemplarily, the network allowing the terminal to automatically update the TA may include that the network configures an indication of autonomous TA adjustment enabled.

[0106] Exemplarily, the RSRP change value refers to the difference between the RSRP value received at the location of the first cell where the terminal is located during the cell reselection / handover process and the RSRP value received at the location of the first cell where the terminal is located when it first received the relevant configuration. Or, it can be understood or replaced that the RSRP change value is less than the RSRP threshold: the difference between the RSRP value received at the location of the first cell where the terminal is located during the cell reselection / handover process and the RSRP value received at the location of the first cell where the terminal is located when it first received the relevant configuration is less than the RSRP threshold.

[0107] Of course, in other alternative embodiments, the value obtained by dividing CP by 4 can also be replaced with: the value obtained by dividing CP by a preset threshold, and the preset threshold can be 4 or other values, which are not specifically limited in this application.

[0108] In this embodiment, including the second cell in the cell list can prevent the terminal from automatically updating the TA during the process of reselection / handover to a cell that is not suitable for automatic update of the TA, thereby ensuring the effectiveness of the terminal's automatic update of the TA.

[0109] In addition, if the RSRP change value is less than the RSRP threshold, it indicates that: the location of the first cell where the terminal is located during the cell reselection process is relatively appropriate, that is, the TA automatically updated when the terminal reselects / handovers from the first cell to the second cell is within the valid range, which can ensure the effectiveness of the terminal's automatic update of the TA.

[0110] In some embodiments, after the terminal automatically updates the TA during the cell reselection / handover process, the method 200 further includes:

[0111] After automatically updating the TA, if the TA value is abnormal, the terminal initiates a random access process to obtain the latest TA value from the network-side device.

[0112] Exemplarily, if the TA value after automatically updating the TA is 0, it is determined that the TA value is abnormal.

[0113] In this embodiment, after automatically updating the TA, if the TA value is abnormal, the terminal initiates a random access process to obtain the latest TA value from the network-side device, which can ensure that the terminal can obtain an effective TA value in a timely manner, thereby ensuring the reliability of data transmission.

[0114] In some embodiments, if the terminal initiates a random access process to obtain the latest TA value from the network-side device after using the automatically updated TA value, the terminal carries the cell identifier of the cell where it received the relevant configuration in the random access (RA) report.

[0115] In this embodiment, if the terminal initiates a random access procedure to obtain the latest TA value from the network device after using the automatically updated TA value, it indicates that the relevant configuration for automatically updating the TA needs to be optimized. In this case, the terminal carries the cell identifier of the cell where the terminal received the relevant configuration in the random access (RA) report, so that after the network device obtains the RA report, it can determine the cell for which the relevant configuration for automatically updating the TA needs to be optimized based on the RA report.

[0116] In some embodiments, the RA report further includes at least one of the following:

[0117] The difference between the TA value after automatically updating the TA and the latest TA value;

[0118] The purpose of the random access (raPurpose) is that the TA value after automatically updating the TA is incorrect.

[0119] In this embodiment, the RA report includes at least one of the following: the difference between the TA value after automatically updating the TA and the latest TA value, and the purpose of the random access (raPurpose) is that the TA value after automatically updating the TA is incorrect; so that after the network device obtains the RA report, the RA report can provide a reference for the network device to optimize the relevant configuration for automatically updating the TA, thereby ensuring the optimization effect of the relevant configuration for automatically updating the TA.

[0120] In some embodiments, if the terminal performs an uplink transmission and a handover failure (HOF) or a radio link failure (RLF) occurs after using the automatically updated TA value, the terminal carries the cell identifier of the cell where the terminal received the relevant configuration in the RLF report.

[0121] In this embodiment, if the terminal performs an uplink transmission and a HOF or an RLF occurs after using the automatically updated TA value, it indicates that the accuracy of the TA value after automatic update is too low. In this case, the terminal carries the cell identifier of the cell where the terminal received the relevant configuration in the RLF report, so that after the network device obtains the RLF report, it can determine the cell for which the relevant configuration for automatically updating the TA needs to be optimized based on the RLF report.

[0122] In some embodiments, the RLF report further includes at least one of the following:

[0123] The radio link failure cause (rlf-Cause) is for automatically updating the TA;

[0124] An indication that an uplink transmission has been performed using the TA value after automatic update before HOF or RLF.

[0125] In this embodiment, the RA report includes at least one of the following: the reason for radio link failure (rlf-Cause) is automatic TA update, or an indication that an uplink transmission has been performed using the TA value after automatic update before HOF or RLF; after the network side device obtains the RLF report, the RLF report can provide a reference for the network side device to optimize the relevant configuration of automatic TA update, thereby ensuring the optimization effect of the relevant configuration of automatic TA update.

[0126] In some embodiments, the method 200 further includes:

[0127] If the terminal receives an RA report requirement or an RLF report requirement from the network side device, the terminal sends an RA report or an RLF report to the network side device.

[0128] Exemplarily, the network side device sends an RA report requirement or an RLF report requirement to the terminal. If the network side device receives an RA report or an RLF report from the terminal, the network device determines the optimized relevant configuration of automatic update timing advance TA based on the RA report or the RLF report.

[0129] In some embodiments, the method 200 further includes:

[0130] The terminal receives the optimized relevant configuration of automatic update timing advance TA of the network from the network side device.

[0131] In this embodiment, the terminal receives the optimized relevant configuration of automatic TA update of the network from the network side device, which can improve the effectiveness of the terminal's automatic TA update.

[0132] The following uses specific embodiments to illustrate the TA update method provided by the embodiments of the present application.

[0133] Step 1:

[0134] The network sends the relevant configuration of automatic TA update to a user equipment (UE) with the ability to automatically update TA in the first cell.

[0135] Among them, the "relevant configuration of automatic TA update" includes at least one of the following:

[0136] An indication allowing the UE to automatically update TA (for example, autonomousTA-AdjustmentEnabled);

[0137] The UE can automatically update the cell list of the TA (for example, cell a, cell b);

[0138] Automatically update the RSRP threshold of the TA. This RSRP threshold can be related to the specific cell where the UE automatically updates the TA. For example, when the automatic update of the TA occurs during reselection / handover from the first cell to cell a, the corresponding RSRP threshold is A. When the automatic update of the TA occurs during reselection / handover from the first cell to cell b, the corresponding RSRP threshold is B.

[0139] Step 2:

[0140] If the UE reselects / handovers from the first cell to the second cell and meets the first condition, the UE performs automatic update of the TA during the cell reselection / handover process.

[0141] Among them, the "first condition" includes at least one of the following:

[0142] The network allows the UE to automatically update the TA (for example, autonomousTA-AdjustmentEnabled);

[0143] The cell list indicated by the network where the UE can perform automatic TA update includes the second cell;

[0144] When the time difference between the UE receiving the reference signal in the first cell and the second cell ≥ CP / 4;

[0145] The change value of the RSRP is less than the RSRP threshold for automatically updating the TA.

[0146] Among them, the "UE performs automatic update of the TA during the cell reselection / handover process" includes at least one of the following,

[0147] If the TA value after automatic update appears abnormal, such as TA ≤ 0, immediately initiate RACH to obtain the latest TA from the network device.

[0148] Step 3a:

[0149] If the UE initiates an RA process to obtain the latest TA from the network device after using the automatically updated TA, the UE includes the cell ID where the "related configuration for automatically updating the TA" is received in the RA report and includes at least one of the following:

[0150] The difference between the TA value after automatically updating the TA and the latest TA obtained by initiating the RA process from the network device;

[0151] The purpose of random access (raPurpose) is that the TA value after automatically updating the TA is incorrect.

[0152] Step 4b:

[0153] If, after using the TA value after the terminal automatically updates the TA, uplink transmission is performed and HOF / RLF occurs, the UE includes in the RLF report the cell ID that received the "related configuration for automatically updating the TA", and includes at least one of the following:

[0154] The radio link failure cause (rlf-Cause) is the automatic update of the TA;

[0155] An indication that the TA value after automatic update was used for uplink transmission before HOF or RLF.

[0156] Step 4:

[0157] The network sends a RA report requirement and / or an RLF report requirement to the UE, obtains a RA report and / or an RLF report from the UE, and optimizes the related configuration for automatically updating the TA based on the content in the report.

[0158] In the TA update method provided by the embodiments of the present application, the execution subject may be a TA update device. In the embodiments of the present application, taking the TA update device executing the TA update method as an example, the TA update device provided by the embodiments of the present application is described.

[0159] Figure 3 FIG. shows a schematic block diagram of a TA update device 300 according to an embodiment of the present application.

[0160] As Figure 3 shown, the TA update device 300 includes:

[0161] A communication unit 310, configured to receive the related configuration for automatically updating the TA from a network-side device;

[0162] Wherein, the related configuration includes at least one of the following:

[0163] A cell list for the terminal to automatically update the TA;

[0164] The reference signal received power (RSRP) threshold for the terminal to automatically update the TA.

[0165] In some embodiments, the RSRP threshold is a threshold corresponding to the cell where the terminal automatically updates the TA.

[0166] In some embodiments, the related configuration further includes an indication allowing the terminal to automatically update the TA.

[0167] In some embodiments, the TA update device 300 further includes:

[0168] A switching unit, configured to reselect or switch from a first cell to a second cell.

[0169] In some embodiments, the TA update device 300 further includes:

[0170] An update unit, configured to automatically update the TA during the process of cell reselection / handover when a first condition is met:

[0171] Wherein, the first condition includes at least one of the following:

[0172] The network allows the terminal to automatically update the TA;

[0173] The cell list includes the second cell;

[0174] The time difference between the reference signals received by the terminal in the first cell and the second cell is greater than or equal to the value obtained by dividing the cyclic prefix CP by 4;

[0175] The change value of the RSRP is less than the RSRP threshold.

[0176] In some embodiments, after the update unit automatically updates the TA during the process of cell reselection / handover, the communication unit 310 is further configured to:

[0177] After automatically updating the TA, if the TA value is abnormal, initiate a random access procedure to obtain the latest TA value from the network side device.

[0178] In some embodiments, if the terminal initiates a random access procedure to obtain the latest TA value from the network side device after using the automatically updated TA value, the terminal carries the cell identifier of the cell where the terminal receives the relevant configuration in the random access RA report.

[0179] In some embodiments, the RA report further includes at least one of the following:

[0180] The difference between the TA value after automatically updating the TA and the latest TA value;

[0181] The purpose of the random access is that the TA value after automatically updating the TA is incorrect.

[0182] In some embodiments, if the terminal performs an uplink transmission and a handover failure HOF or a radio link failure RLF occurs after using the automatically updated TA value, the terminal carries the cell identifier of the cell where the terminal receives the relevant configuration in the RLF report.

[0183] In some embodiments, the RLF report further includes at least one of the following:

[0184] The reason for the radio link failure is the automatic update of the TA;

[0185] An indication that an uplink transmission has been performed using the TA value after automatic update before HOF or RLF.

[0186] In some embodiments, the communication unit 310 is further configured to:

[0187] If the terminal receives a random access RA report requirement or a radio link failure RLF report requirement from the network side device, send an RA report or an RLF report to the network side device.

[0188] In some embodiments, the communication unit 310 is further configured to:

[0189] Receive the relevant configuration of the network-optimized automatic update timing advance TA from the network side device.

[0190] It should be understood that the TA update device 300 provided in the embodiments of the present application may correspond to the terminal in the method embodiments of the present application, and the above (or other) operations or functions of each unit in the TA update device 300 are respectively for implementing Figure 2 The corresponding processes executed by the terminal in the method embodiments, and for the sake of brevity, will not be elaborated here.

[0191] Figure 4 Fig. shows a schematic block diagram of a TA update device 400 according to an embodiment of the present application.

[0192] As Figure 4 shown, the TA update device 400 includes:

[0193] A communication unit 410, configured to send the relevant configuration of the automatic update timing advance TA to the terminal;

[0194] Wherein, the relevant configuration includes at least one of the following:

[0195] The cell list for the terminal to automatically update the TA;

[0196] The reference signal received power RSRP threshold for the terminal to automatically update the TA.

[0197] In some embodiments, the RSRP threshold is the threshold corresponding to the cell for the terminal to automatically update the TA.

[0198] In some embodiments, the relevant configuration further includes an indication allowing the terminal to automatically update the TA.

[0199] In some embodiments, the communication unit 410 is further configured to:

[0200] Send the latest TA value to the terminal in response to a random access process.

[0201] In some embodiments, the terminal carries, in a random access (RA) report, the cell identifier of the cell for which the terminal has received the relevant configuration.

[0202] In some embodiments, the RA report further includes at least one of the following:

[0203] The difference between the TA value after automatic TA update and the latest TA value sent by the network side device;

[0204] The purpose of the random access is that the TA value after automatic TA update is incorrect.

[0205] In some embodiments, the terminal carries, in a radio link failure (RLF) report, the cell identifier of the cell for which the terminal has received the relevant configuration.

[0206] In some embodiments, the RLF report further includes at least one of the following:

[0207] The invalid link failure reason is automatic TA update;

[0208] An indication that the uplink transmission has been performed using the TA value after automatic update before handover failure (HOF) or radio link failure (RLF).

[0209] In some embodiments, the communication unit 410 is further configured to:

[0210] If the network side device sends a random access (RA) report requirement or a radio link failure (RLF) report requirement to the terminal device, receive the RA report or the RLF report from the terminal device.

[0211] In some embodiments, the communication unit 410 is further configured to:

[0212] Send the relevant configuration for optimizing the automatic update of the timing advance (TA) to the terminal.

[0213] It should be understood that the TA update device 400 provided in the embodiments of the present application may correspond to the network side device in the method embodiments of the present application, and the above (or other) operations or functions of each unit in the TA update device 400 are respectively for implementing Figure 2 the corresponding processes of the network side device in the method embodiments, and for the sake of brevity, they are not described herein again.

[0214] The TA update device in the embodiments of this application may be an electronic device, such as an electronic device with an operating system, or a component in an electronic device, such as an integrated circuit or a chip. The electronic device may be a terminal, a network-side device, or other devices. Exemplarily, the terminal may include, but is not limited to, the types of the terminal 11 listed above, the network-side device may include, but is not limited to, the types of the network-side device 12 listed above, and other devices may be a server, a Network Attached Storage (NAS), etc., which are not specifically limited in the embodiments of this application.

[0215] The TA update device provided in the embodiments of this application can implement Figure 2 each process involved in the method embodiments, and achieve the same technical effects. To avoid repetition, details are not described here again.

[0216] Figure 5 is an example of the communication device 500 provided in the embodiments of this application.

[0217] As Figure 5 shown, the communication device 500 includes a processor 501 and a memory 502. A program or instruction that can run on the processor 501 is stored on the memory 502. When the program or instruction is executed by the processor 501, each step of the above TA update method embodiment is implemented. For example, when the communication device 500 is a terminal, when the program or instruction is executed by the processor 501, each step executed by the terminal in the above TA update method embodiment is implemented, and the same technical effects can be achieved. When the communication device 500 is a network-side device, when the program or instruction is executed by the processor 501, each step executed by the network-side device in the above TA update method embodiment is implemented, and the same technical effects can be achieved. To avoid repetition, details are not described here again.

[0218] The embodiments of this application also provide a terminal, including a processor and a communication interface. The communication interface is coupled to the processor. The processor is used to run a program or instruction to implement the steps in the method embodiment as Figure 4 shown. This terminal embodiment corresponds to the method embodiment of the terminal. Each implementation process and implementation manner of the above method embodiment can be applied to this terminal embodiment, and the same technical effects can be achieved.

[0219] The embodiments of this application also provide a network-side device, including a processor and a communication interface. The communication interface is coupled to the processor. The processor is used to run a program or instruction to implement the steps in the method embodiment as Figure 4Steps of the method embodiments shown. This network-side device embodiment corresponds to the method embodiments of the network-side device. Each implementation process and implementation method of the above method embodiments can be applied to this network-side device embodiment, and the same technical effects can be achieved.

[0220] Figure 6 It is a schematic diagram of the hardware structure of a terminal for implementing an embodiment of the present application.

[0221] As Figure 6 shown, the terminal 600 includes, but is not limited to, at least some components such as a radio frequency unit 601, a network module 602, an audio output unit 603, an input unit 604, a sensor 605, a display unit 606, a user input unit 607, an interface unit 606, a memory 609, and a processor 610.

[0222] Those skilled in the art can understand that the terminal 600 may further include a power supply (such as a battery) for supplying power to each component. The power supply can be logically connected to the processor 610 through a power management system, so as to implement functions such as management of charging, discharging, and power consumption management through the power management system. Figure 6 The terminal structure shown in does not constitute a limitation on the terminal. The terminal may include more or fewer components than shown in the figure, or combine certain components, or have different component arrangements, which will not be elaborated here.

[0223] It should be understood that in the embodiments of the present application, the input unit 604 may include a graphics processing unit (GPU) 6041 and a microphone 6042. The graphics processor 6041 processes the image data of still pictures or videos obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. The display unit 606 may include a display panel 6061, and the display panel 6061 may be configured in the form of a liquid crystal display, an organic light-emitting diode, etc. The user input unit 607 includes at least one of a touch panel 6071 and other input devices 6072. The touch panel 6071 is also called a touch screen. The touch panel 6071 may include a touch detection device and a touch controller. Other input devices 6072 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which will not be elaborated here.

[0224] In the embodiments of the present application, after receiving the downlink data from the network-side device, the radio frequency unit 601 can transmit it to the processor 610 for processing; in addition, the radio frequency unit 601 can send uplink data to the network-side device. Generally, the radio frequency unit 601 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low-noise amplifier, a duplexer, etc.

[0225] The memory 609 can be used to store software programs or instructions and various data. The memory 609 may mainly include a first storage area for storing programs or instructions and a second storage area for storing data. Among them, the first storage area may store an operating system, application programs or instructions required for at least one function (such as a sound playback function, an image playback function, etc.). In addition, the memory 609 may include a volatile memory or a non-volatile memory. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM), a static random access memory (SRAM), a dynamic random access memory (DRAM), a synchronous dynamic random access memory (SDRAM), a double data rate synchronous dynamic random access memory (DDR SDRAM), an enhanced synchronous dynamic random access memory (ESDRAM), a synchronous link dynamic random access memory (SLDRAM), and a direct rambus random access memory (DRRAM). The memory 609 in the embodiments of the present application includes but is not limited to these and any other suitable types of memories.

[0226] The processor 610 may include one or at least two processing units; optionally, the processor 610 integrates an application processor and a modem processor. Among them, the application processor mainly processes operations related to the operating system, user interface, and application programs, etc., and the modem processor mainly processes wireless communication signals, such as a baseband processor. It can be understood that the above modem processor may not be integrated into the processor 610.

[0227] Among them, the radio frequency unit 601 is used to receive the relevant configuration for automatically updating the TA from the network-side device;

[0228] Among them, the relevant configuration includes at least one of the following:

[0229] The cell list of the terminal for automatically updating the TA;

[0230] The reference signal received power (RSRP) threshold for the terminal to automatically update the TA.

[0231] In this embodiment, the terminal can determine the automatic update of the TA based on the relevant configuration, thereby ensuring the effectiveness of the automatic update of the TA.

[0232] It can be understood that the implementation processes of the implementation methods mentioned in this embodiment can refer to the relevant descriptions of the method embodiments and achieve the same or corresponding technical effects. To avoid repetition, they will not be elaborated here.

[0233] Figure 7 It is an example of the network-side device 700 provided by the embodiments of the present application.

[0234] As Figure 7 shown, the network-side device 700 includes: an antenna 71, a radio frequency device 72, a baseband device 73, a processor 74, and a memory 75. The antenna 71 is connected to the radio frequency device 72. In the uplink direction, the radio frequency device 72 receives information through the antenna 71 and sends the received information to the baseband device 73 for processing. In the downlink direction, the baseband device 73 processes the information to be sent and sends it to the radio frequency device 72. After processing the received information, the radio frequency device 72 sends it out through the antenna 71.

[0235] The method executed by the network-side device in the above embodiments can be implemented in the baseband device 73, and the baseband device 73 includes a baseband processor.

[0236] The baseband device 73 may include, for example, at least one baseband board, and at least two chips are provided on the baseband board. As Figure 7 shown, one of the chips is, for example, a baseband processor, which is connected to the memory 75 through a bus interface to call the program in the memory 75 and execute the corresponding processes of the network-side device in the above method embodiments.

[0237] The network-side device may further include a network interface 76, and this interface is, for example, a Common Public Radio Interface (CPRI).

[0238] Specifically, the network-side device 700 of the embodiments of the present application further includes: instructions or programs stored on the memory 75 and executable on the processor 74. The processor 74 calls the instructions or programs in the memory 75 to execute Figure 4 the steps executed by each unit in the TA update device shown, and achieve the same technical effects. To avoid repetition, they will not be elaborated here.

[0239] The embodiment of the present application also provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, it implements each process of the above TA update method embodiment and can achieve the same technical effect. To avoid repetition, it will not be elaborated here.

[0240] Wherein, the processor is the processor in the terminal described in the above embodiment. The readable storage medium includes a computer-readable storage medium, such as a computer read-only memory ROM, a random access memory RAM, a magnetic disk, or an optical disc, etc. In some examples, the readable storage medium may be a non-transitory readable storage medium.

[0241] The embodiment of the present application also provides a chip, which includes a processor and a communication interface. The communication interface is coupled to the processor. The processor is used to run a program or instruction to implement each process of the above TA update method embodiment and can achieve the same technical effect. To avoid repetition, it will not be elaborated here.

[0242] It should be understood that the chip mentioned in the embodiment of the present application may also be referred to as a system-on-chip, a system chip, a chip system, or a system-on-chip.

[0243] The embodiment of the present application also provides a computer program / program product. The computer program / program product is stored in a storage medium. The computer program / program product is executed by at least one processor to implement each process of the above TA update method embodiment and can achieve the same technical effect. To avoid repetition, it will not be elaborated here.

[0244] The embodiment of the present application also provides a communication system, including: a terminal and a network-side device. The terminal can be used to execute the steps executed by the terminal in the above TA update method, and the network-side device can be used to execute the steps executed by the network-side device in the above TA update method.

[0245] It should be noted that in this text, the term "comprising", "including" or any other variation thereof is intended to cover non-exclusive inclusion, such that a process, method, article or apparatus comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or apparatus. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or apparatus comprising that element. In addition, it should be pointed out that the scope of the methods and apparatuses in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in the reverse order according to the functions involved. For example, the described methods may be performed in an order different from that described, and various steps may be added, omitted or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0246] From the description of the above embodiments, those skilled in the art can clearly understand that the above method-related embodiments can be implemented by means of a computer software product plus a necessary general hardware platform, and of course, can also be implemented by hardware. The computer software product is stored in a storage medium (such as ROM, RAM, magnetic disk, optical disk, etc.) and includes several instructions for causing a terminal or a network-side device to execute the methods described in the various embodiments of the present application.

[0247] The embodiments of the present application have been described above in conjunction with the accompanying drawings. However, the present application is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not restrictive. Under the inspiration of the present application, those of ordinary skill in the art can also make many forms of embodiments without departing from the purpose of the present application and the scope protected by the claims. These embodiments are all within the protection scope of the present application.

Claims

1. A method for updating Timing Advance (TA), characterized in that, Including: The terminal receives the relevant configuration for automatically updating the TA from the network-side device. Wherein, the relevant configuration includes at least one of the following: The cell list for the terminal to automatically update the TA; The reference signal received power (RSRP) threshold for the terminal to automatically update the TA.

2. The method according to claim 1, wherein The RSRP threshold is the threshold corresponding to the cell where the terminal automatically updates the TA.

3. The method according to claim 1 or 2, characterized in that, The relevant configuration further includes an indication allowing the terminal to automatically update the TA.

4. The method according to any one of claims 1 to 3, characterized in that The method further includes: The terminal reselects or switches from the first cell to the second cell.

5. The method according to claim 4, wherein The method further includes: When a first condition is satisfied, the terminal automatically updates the TA during the cell reselection / handover process: Wherein, the first condition includes at least one of the following: The network allows the terminal to automatically update the TA; The cell list includes the second cell; The time difference between the reference signals received by the terminal in the first cell and the second cell is greater than or equal to the value of the cyclic prefix (CP) divided by 4; The change value of the RSRP is less than the RSRP threshold.

6. The method according to claim 5, wherein After the terminal automatically updates the TA during the cell reselection / handover process, the method further includes: If the TA value is abnormal after automatically updating the TA, the terminal initiates a random access process to obtain the latest TA value from the network-side device.

7. The method according to any one of claims 1 to 6, characterized in that If the terminal initiates a random access process to obtain the latest TA value from the network-side device after using the automatically updated TA value, the terminal carries the cell identifier of the cell where the terminal received the relevant configuration in the random access (RA) report.

8. The method according to claim 7, wherein The RA report further includes at least one of the following: The difference between the TA value after automatically updating the TA and the latest TA value; The purpose of the random access is that the TA value after automatically updating the TA is incorrect.

9. The method according to any one of claims 1 to 8, characterized in that, If the terminal performs an uplink transmission and a handover failure (HOF) or a radio link failure (RLF) occurs after using the automatically updated TA value, the terminal carries the cell identifier of the cell where the terminal received the relevant configuration in the RLF report.

10. The method according to claim 9, characterized in that, The RLF report further includes at least one of the following: The reason for the radio link failure is the automatic update of the TA; An indication that the TA value after automatically updating the TA was used for uplink transmission before the HOF or RLF.

11. The method according to any one of claims 1 to 10, characterized in that, The method further includes: If the terminal receives a random access (RA) report requirement or a radio link failure (RLF) report requirement from the network-side device, the terminal sends an RA report or an RLF report to the network-side device.

12. The method according to claim 11, wherein The method further includes: The terminal receives the relevant configuration for the network-optimized automatic update of the timing advance (TA) from the network-side device.

13. A Timing Advance (TA) update method, characterized in that, Including: The network-side device sends the relevant configuration for automatically updating the TA to the terminal. Wherein, the relevant configuration includes at least one of the following: The cell list for the terminal to automatically update the TA; The reference signal received power (RSRP) threshold for the terminal to automatically update the TA.

14. The method according to claim 13, characterized in that The RSRP threshold is the threshold corresponding to the cell where the terminal automatically updates the TA.

15. The method according to claim 13 or 14, characterized in that, The relevant configuration further includes an indication allowing the terminal to automatically update the TA.

16. The method according to any one of claims 13 to 15, characterized in that, The method further includes: The network-side device sends the latest TA value to the terminal in response to the random access process.

17. The method according to any one of claims 13 to 16, characterized in that The terminal carries, in a random access (RA) report, the cell identifier of the cell for which the terminal has received the relevant configuration.

18. The method according to claim 17, characterized in that, The RA report further includes at least one of the following: The difference between the TA value after automatic TA update and the latest TA value sent by the network side device; The purpose of random access is that the TA value after automatic TA update is incorrect.

19. The method according to any one of claims 13 to 18, characterized in that, The terminal carries, in a radio link failure (RLF) report, the cell identifier of the cell for which the terminal has received the relevant configuration.

20. The method according to claim 19, wherein The RLF report further includes at least one of the following: The invalid link failure cause is automatic TA update; An indication that the TA value after automatic update was used for uplink transmission before handover (HO) or radio link failure (RLF).

21. The method according to any one of claims 13 to 20, characterized in that, The method further includes: If the network side device sends a random access (RA) report requirement or a radio link failure (RLF) report requirement to the terminal device, the network side device receives an RA report or an RLF report from the terminal device.

22. The method according to claim 21, characterized in that, The method further includes: The network side device sends the terminal the relevant configuration for optimized automatic TA update.

23. A Timing Advance (TA) update device, characterized in that, It includes: A communication unit, configured to receive the relevant configuration for automatic TA update from the network side device; Wherein, the relevant configuration includes at least one of the following: A cell list for the terminal to automatically update TA; The reference signal received power (RSRP) threshold for the terminal to automatically update TA.

24. The device according to claim 23, characterized in that, The apparatus further includes: A processing unit, configured to reselect from a first cell or handover to a second cell.

25. The device according to claim 24, characterized in that, The processing unit is further configured to: In case a first condition is met, perform automatic TA update during cell reselection / handover: Wherein, the first condition includes at least one of the following: The network allows the terminal to automatically update TA; The cell list includes the second cell; The time difference between the reference signals received by the terminal in the first cell and the second cell is greater than or equal to the cyclic prefix (CP) divided by 4; The change value of RSRP is less than the RSRP threshold.

26. The device according to claim 25, characterized in that, After the processing unit performs automatic TA update during cell reselection / handover, the communication unit is further configured to: After automatic TA update, if the TA value is abnormal, initiate a random access procedure to obtain the latest TA value from the network side device.

27. The device according to any one of claims 23 to 26, characterized in that, If the terminal initiates a random access procedure to obtain the latest TA value from the network side device after using the TA value after automatic update, the terminal carries, in the random access (RA) report, the cell identifier of the cell for which the terminal has received the relevant configuration.

28. The device according to claim 27, characterized in that, The RA report further includes at least one of the following: The difference between the TA value after automatic TA update and the latest TA value; The purpose of random access is that the TA value after automatic TA update is incorrect.

29. The device according to any one of claims 23 to 28, characterized in that If the terminal performs uplink transmission and a handover failure (HOF) or a radio link failure (RLF) occurs after using the TA value after automatic update, the terminal carries, in the RLF report, the cell identifier of the cell for which the terminal has received the relevant configuration.

30. The device according to claim 29, characterized in that, The RLF report further includes at least one of the following: The radio link failure cause is automatic TA update; An indication that the TA value after automatic update was used for uplink transmission before HOF or RLF.

31. A TA update device, characterized in that, It includes: A communication unit, configured to send the relevant configuration for automatically updating the Timing Advance (TA) to a terminal; Wherein, the relevant configuration includes at least one of the following: A cell list for the terminal to automatically update the TA; A Reference Signal Received Power (RSRP) threshold for the terminal to automatically update the TA.

32. The device according to claim 31, characterized in that, The communication unit is further configured to: Send the latest TA value to the terminal in response to a random access procedure.

33. The device according to claim 31 or 32, characterized in that, The terminal carries, in a Random Access (RA) report, a cell identifier of the cell where the terminal receives the relevant configuration.

34. The device according to claim 33, characterized in that, The RA report further includes at least one of the following: A difference between the TA value after automatically updating the TA and the latest TA value sent by the network side device; The purpose of the random access is that the TA value after automatically updating the TA is incorrect.

35. The device according to any one of claims 31 to 34, characterized in that The terminal carries, in a Radio Link Failure (RLF) report, a cell identifier of the cell where the terminal receives the relevant configuration.

36. The device according to claim 35, characterized in that, The RLF report further includes at least one of the following: The reason for the radio link failure is the automatic update of the TA; An indication that the uplink transmission has used the TA value after automatic update before Handover Failure (HOF) or Radio Link Failure (RLF).

37. A terminal, characterized in that, Comprising a transceiver, a processor, and a memory, the memory stores programs or instructions that can run on the processor, and when the programs or instructions are executed by the processor, the TA update method according to any one of claims 1 to 12 is implemented.

38. A network-side device, characterized in that, Comprising a transceiver, a processor, and a memory, the memory stores programs or instructions that can run on the processor, and when the programs or instructions are executed by the processor, the TA update method according to any one of claims 13 to 22 is implemented.

39. A readable storage medium, characterized in that, Programs or instructions are stored on the readable storage medium, and when the programs or instructions are executed by the processor, the TA update method according to any one of claims 1 to 12 is implemented, or the TA update method according to any one of claims 13 to 22 is implemented.

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