Communication method, communication device, communication system, storage medium, and program product

Abstract

The embodiment of the invention discloses a communication method, communication equipment, a communication system, a storage medium and a program product. A low layer of a terminal indicates a high layer of the terminal to update stored reference signal receiving power (RSRP) by determining update timing advance (TA); wherein the terminal is in an inactive state; therefore, the terminal can automatically adjust the TA based on the measurement quantity of the physical layer and indicate the high layer to update the stored RSRP, so that the terminal can still complete positioning in a low-power-consumption state, the power consumption and the positioning time delay are effectively balanced, and the overall performance of the system is improved.

Description

Technical Field

[0001] This application relates to the field of communication technology, and in particular to communication methods, communication devices, communication systems, storage media, and program products. Background Technology

[0002] With the continuous development of mobile communication technology, communication scenarios are becoming more diversified, and the demand for location services is constantly increasing. In related technologies, user equipment (UE) usually needs to be in the Radio Resource Control (RRC) connected state to perform location measurement and reporting, which brings high signaling load and power consumption, and also limits the application of location services in some low-power scenarios. Summary of the Invention

[0003] This application provides a communication method, communication device, communication system, storage medium, and program product.

[0004] A first aspect of this application provides a communication method, which is executed by a terminal, and the method includes:

[0005] The lower layer of the terminal determines the advance timing of the update (TA), and the higher layer of the terminal instructs the higher layer of the terminal to update the stored reference signal received power (RSRP).

[0006] The terminal is in an inactive state.

[0007] A second aspect of this application provides a terminal, the terminal comprising:

[0008] The processing module is used to determine the update timing advance TA, and the lower layer of the terminal instructs the higher layer of the terminal to update the stored reference signal received power RSRP;

[0009] The terminal is in an inactive state.

[0010] The solution proposed in this application, by determining the advance timing of the TA update, instructs the higher layer of the terminal to update the stored Reference Signal Received Power (RSRP); wherein the terminal is in an inactive state; this enables the terminal to autonomously adjust the TA based on physical layer measurements and instruct the higher layer to update the stored RSRP, ensuring that the terminal can still complete positioning in a low-power state, effectively balancing power consumption and positioning latency, and improving the overall performance of the system. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this application or the background art, the accompanying drawings used in the embodiments of this application or the background art will be described below.

[0012] Figure 1A This is a schematic diagram of the architecture of a communication system provided in an embodiment of this application;

[0013] Figure 2A This is an interactive schematic diagram of a communication method provided in an embodiment of this application;

[0014] Figure 3A This is an interactive schematic diagram of a communication method provided in an embodiment of this application;

[0015] Figure 4A This is a schematic diagram of the structure of a terminal provided in an embodiment of this application;

[0016] Figure 4B This is a schematic diagram of the structure of a network device provided in an embodiment of this application;

[0017] Figure 5A This is a schematic diagram of the structure of a communication device provided in an embodiment of this application;

[0018] Figure 5B This is a schematic diagram of the structure of a chip provided in an embodiment of this application. Detailed Implementation

[0019] This application provides communication methods, communication devices, communication systems, storage media, and program products.

[0020] In a first aspect, embodiments of this application propose a communication method, which is executed by a terminal, and the method includes:

[0021] The lower layer of the aforementioned terminal instructs the higher layer of the aforementioned terminal to update the stored Reference Signal Received Power (RSRP).

[0022] The aforementioned terminals are in an inactive state.

[0023] In the above embodiments, the terminal is able to autonomously adjust the TA based on the physical layer measurement and instruct the MAC layer to update the stored RSRP for subsequent TA validity verification. This ensures that the terminal can still complete positioning in a low-power state, effectively balancing power consumption and positioning latency, and improving the overall performance of the system.

[0024] In conjunction with some embodiments of the first aspect, in some embodiments, the terminal supports automatic adjustment of TA and the automatic adjustment of TA of the terminal is enabled.

[0025] In conjunction with some embodiments of the first aspect, in some embodiments, the higher layer of the terminal updates the stored RSRP according to the instructions of the lower layer of the terminal.

[0026] In conjunction with some embodiments of the first aspect, in some embodiments, the lower layer of the terminal is the physical layer, and the higher layer of the terminal is the Media Access Control (MAC) layer and / or the RRC layer of the terminal.

[0027] In conjunction with some embodiments of the first aspect, in some embodiments, the RRC layer of the terminal does not instruct the physical layer of the terminal to update the TA; and / or, the RRC layer of the terminal does not instruct the MAC layer of the terminal to update the stored RSRP.

[0028] In conjunction with some embodiments of the first aspect, in some embodiments the above method further includes:

[0029] Receive configuration information sent by the network device, the configuration information being used to configure the terminal to send a probe reference signal (SRS) when it is in an inactive state;

[0030] Send SRS to the aforementioned network devices.

[0031] In conjunction with some embodiments of the first aspect, in some embodiments the above method further includes:

[0032] Receive configuration information sent by the network device. The configuration information is used to configure the terminal to perform a positioning process based on the detection reference signal (SRS) when it is in an inactive state.

[0033] Send SRS to the aforementioned network devices.

[0034] In conjunction with some embodiments of the first aspect, in some embodiments the above method further includes:

[0035] Send capability information to the network device, which indicates that the terminal supports adjusting the TA during the positioning process.

[0036] In conjunction with some embodiments of the first aspect, in some embodiments the above method further includes:

[0037] The terminal receives enable information sent by the aforementioned network device, which is used to determine that the automatic adjustment of TA (Transmission Control) of the aforementioned terminal is enabled.

[0038] In conjunction with some embodiments of the first aspect, in some embodiments, the above-mentioned determination of the update timing advance TA includes:

[0039] The decision is made to move from the original residential community to the target residential community, and the target residential community is located within the valid area;

[0040] If the difference between the downlink timing of the original cell and the downlink timing of the target cell meets the preset conditions, the TA will be updated.

[0041] In conjunction with some embodiments of the first aspect, in some embodiments, the updated TA is determined based on the difference between the downlink timing of the original cell and the downlink timing of the target cell, and the TA applied in the original cell.

[0042] Secondly, embodiments of this application propose a communication method, which is executed by a network device, and the method includes:

[0043] Send configuration information to the terminal, the configuration information being used to configure the terminal to perform a positioning process based on the detection reference signal (SRS) when it is in an inactive state;

[0044] Receive SRS sent by the aforementioned terminal.

[0045] In conjunction with some embodiments of the second aspect, in some embodiments, the above configuration information is used to configure the above terminal to send the above SRS when it is in an inactive state.

[0046] In conjunction with some embodiments of the second aspect, in some embodiments the above method further includes:

[0047] The capability information sent by the aforementioned terminal is received, and the capability information is used to instruct the aforementioned terminal to support adjusting the TA during the positioning process.

[0048] In conjunction with some embodiments of the second aspect, in some embodiments the above method further includes:

[0049] An enable message is sent to the aforementioned terminal, which is used to determine that the automatic adjustment (TA) of the aforementioned terminal is enabled.

[0050] Thirdly, embodiments of this application propose a communication method, the method comprising:

[0051] The terminal determines that the update timing is advanced by TA, and the lower layer of the aforementioned terminal instructs the higher layer of the aforementioned terminal to update the stored reference signal received power RSRP.

[0052] Among them, the above-mentioned terminal is in an inactive state, the above-mentioned terminal supports autonomous adjustment of TA, and the autonomous timing advance adjustment enable of the above-mentioned terminal is enabled.

[0053] In the above embodiments, the terminal is able to autonomously adjust the TA based on the physical layer measurement and instruct the MAC layer to update the stored RSRP for subsequent TA validity verification. This ensures that the terminal can still complete positioning in a low-power state, effectively balancing power consumption and positioning latency, and improving the overall performance of the system.

[0054] Fourthly, embodiments of this application propose a terminal, which includes a transceiver module; wherein the terminal is used to execute the first aspect and optional implementations of the first aspect.

[0055] Fifthly, embodiments of this application propose a network device, which includes a transceiver module; wherein the network device is used to execute the second aspect and the optional implementation of the second aspect.

[0056] In a sixth aspect, embodiments of this application provide a terminal, which includes one or more processors; wherein the terminal is used to execute the first aspect and optional implementations of the first aspect.

[0057] In a seventh aspect, embodiments of this application provide a network device comprising: one or more processors; wherein the network device is configured to execute the second aspect and optional implementations thereof.

[0058] Eighthly, embodiments of this application provide a communication device for performing the methods described in the first aspect and its optional implementations, the second aspect and its optional implementations.

[0059] Ninthly, embodiments of this application propose a communication system, which includes: a terminal and a network device; wherein the terminal is configured to perform the method described in the first aspect and the optional implementation of the first aspect, and the network device is configured to perform the method described in the second aspect and the optional implementation of the second aspect.

[0060] In a tenth aspect, embodiments of this application provide a storage medium storing instructions that, when executed on a communication device, cause the communication device to perform the method described in the first aspect and its optional implementation, as well as the second aspect and its optional implementation.

[0061] In the eleventh aspect, embodiments of this application provide a program product that, when executed by a communication device, causes the communication device to perform the method described in the first aspect and its optional implementation, as well as the second aspect and its optional implementation.

[0062] In a twelfth aspect, embodiments of this application provide a computer program that, when run on a computer, causes the computer to perform the methods described in the first aspect and its optional implementations, the second aspect and its optional implementations.

[0063] In a thirteenth aspect, embodiments of this application provide a chip or chip system. The chip or chip system includes processing circuitry configured to perform the methods described according to the first aspect and its optional implementations, the second aspect, and its optional implementations.

[0064] It is understood that the aforementioned terminals, network devices, communication devices, communication systems, storage media, and program products are all used to execute the methods proposed in the embodiments of this application. Therefore, the beneficial effects they can achieve can be referred to the beneficial effects in the corresponding methods, and will not be repeated here.

[0065] This application provides a communication method and apparatus, a communication device, a communication system, and a storage medium. In some embodiments, terms such as communication method and information processing method can be used interchangeably, as can terms such as information processing system and communication system.

[0066] The embodiments described in this application are not exhaustive, but merely illustrative of some embodiments, and are not intended to limit the scope of protection of this application. Unless otherwise specified, each step in a particular embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined. For example, a solution after removing some steps in a particular embodiment can also be implemented as an independent embodiment, and the order of the steps in a particular embodiment can be arbitrarily interchanged. Furthermore, the optional implementation methods in a particular embodiment can be arbitrarily combined; moreover, the embodiments can be arbitrarily combined with each other. For example, some or all steps of different embodiments can be arbitrarily combined, and a particular embodiment can be arbitrarily combined with the optional implementation methods of other embodiments.

[0067] In each embodiment of this application, unless otherwise specified or in case of logical conflict, the terminology and / or descriptions of the embodiments are consistent and can be referenced by each other. Technical features in different embodiments can be combined to form new embodiments based on their inherent logical relationships.

[0068] The terminology used in the embodiments of this application is for the purpose of describing specific embodiments only and is not intended to limit the scope of this application.

[0069] In the embodiments of this application, unless otherwise stated, elements expressed in the singular form, such as "a," "an," "the," "the," "the," "the," "the," "the," "this," etc., can mean "one and only one," or "one or more," "at least one," etc. For example, when using articles such as "a," "an," "the," etc. in translation, the noun after the article can be understood as either a singular expression or a plural expression.

[0070] In the embodiments of this application, "multiple" refers to two or more.

[0071] In some embodiments, the terms “at least one of”, “one or more”, “a plurality of”, “multiple”, etc., may be used interchangeably.

[0072] In some embodiments, the notation "at least one of A and B", "A and / or B", "A in one case, B in another", "in response to one case A, in response to another case B", etc., may include the following technical solutions depending on the situation: in some embodiments, A (execute A regardless of B); in some embodiments, B (execute B regardless of A); in some embodiments, execution is selected from A and B (A and B are selectively executed); in some embodiments, A and B (both A and B are executed). The same applies when there are more branches such as A, B, C, etc.

[0073] In some embodiments, the notation "A or B" may include the following technical solutions, depending on the situation: in some embodiments, A (execution of A regardless of B); in some embodiments, B (execution of B regardless of A); in some embodiments, execution is selected from A and B (A and B are selectively executed). The same applies when there are more branches such as A, B, C, etc.

[0074] The prefixes "first," "second," etc., used in the embodiments of this application are merely for distinguishing different descriptive objects and do not impose restrictions on the position, order, priority, quantity, or content of the descriptive objects. The description of the descriptive objects is found in the claims or the context of the embodiments, and the use of prefixes should not constitute unnecessary restrictions. For example, if the descriptive object is a "field," the ordinal numbers preceding "field" in "first field" and "second field" do not restrict the position or order of the "fields." "First" and "second" do not restrict whether the "fields" they modify are in the same message, nor do they restrict the order of "first field" and "second field." Similarly, if the descriptive object is a "level," the ordinal numbers preceding "level" in "first level" and "second level" do not restrict the priority between "levels." Furthermore, the number of descriptive objects is not limited by ordinal numbers and can be one or more. For example, in "first device," the number of "devices" can be one or more. Furthermore, the objects modified by different prefixes can be the same or different. For example, if the object being described is "device", then "first device" and "second device" can be the same device or different devices, and their types can be the same or different. Similarly, if the object being described is "information", then "first information" and "second information" can be the same information or different information, and their content can be the same or different.

[0075] In some embodiments, “including A,” “containing A,” “for indicating A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

[0076] In some embodiments, terms such as "time / frequency" and "time-frequency domain" refer to the time domain and / or frequency domain.

[0077] In some embodiments, the terms “in response to…”, “in response to determining…”, “in the case of…”, “when…”, “if…”, “if…”, etc., can be used interchangeably.

[0078] In some embodiments, the terms “greater than,” “greater than or equal to,” “not less than,” “more than,” “more than or equal to,” “not less than,” “higher than,” “higher than or equal to,” “not lower than,” and “above” can be used interchangeably, as can the terms “less than,” “less than or equal to,” “not greater than,” “less than,” “less than or equal to,” “not more than,” “lower than,” “lower than or equal to,” “not higher than,” and “below”.

[0079] In some embodiments, the apparatus and device may be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments. In some cases, they may also be understood as "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", "body", etc.

[0080] In some embodiments, "network" can be interpreted as devices included in the network, such as access network devices, core network devices, etc.

[0081] In some embodiments, "access network device (AN device)" may also be referred to as "radio access network device (RAN device)," "base station (BS)," "radio base station," or "fixed station." In some embodiments, it may also be understood as "node," "access point," "transmission point (TP)," "reception point (RP)," "transmission / reception point (TRP)," "panel," "antenna panel," "antenna array," "cell," "macro cell," "small cell," "femto cell," "pico cell," "sector," "cellgroup," "serving cell," "carrier," "component carrier," or "bandwidth part (BWP)," etc.

[0082] In some embodiments, "terminal" or "terminal device" may be referred to as "user equipment (UE)," "user terminal," "mobile station (MS)," "mobile terminal (MT)," "subscriber station," "mobile unit," "subscriber unit," "wireless unit," "remote unit," "mobile device," "wireless device," "wireless communication device," "remote device," "mobile subscriber station," "access terminal," "mobile terminal," "wireless terminal," "remote terminal," "handset," "user agent," "mobile client," "client," etc.

[0083] In some embodiments, access network devices, core network devices, or network devices can be replaced by terminals. For example, various embodiments of this application can also be applied to structures that replace communication between access network devices, core network devices, or network devices and terminals with communication between multiple terminals (e.g., device-to-device (D2D), vehicle-to-everything (V2X), etc.). In this case, the structure can also be configured such that the terminal has all or part of the functions of the access network device. Furthermore, terms such as "uplink" and "downlink" can be replaced with terms corresponding to communication between terminals (e.g., "sidelink"). For example, uplink channel, downlink channel, etc., can be replaced with sidelink channel, uplink link, downlink link, etc., can be replaced with sidelink link.

[0084] In some embodiments, the terminal may be replaced by an access network device, a core network device, or a network device. In this case, the access network device, core network device, or network device may also be configured to have all or some of the functions of the terminal.

[0085] In some embodiments, the acquisition of data, information, etc., may comply with the laws and regulations of the country where the location is situated.

[0086] In some embodiments, data, information, etc., may be obtained with the user's consent.

[0087] Furthermore, each element, each row, or each column in the table of this application embodiment can be implemented as an independent embodiment, and any combination of any element, any row, or any column can also be implemented as an independent embodiment.

[0088] Figure 1A This is a schematic diagram of the architecture of a communication system according to an embodiment of this application.

[0089] like Figure 1A As shown, the communication system 100 includes a terminal 101 and a network device 102.

[0090] In some embodiments, terminal 101 includes, for example, at least one of the following: terminal, mobile phone, wearable device, Internet of Things (IoT) device, Narrow Band-Internet of Things (NB-IoT) device, satellite communication device, car with communication function, smart car, tablet computer, computer with wireless transceiver function, virtual reality (VR) terminal device, augmented reality (AR) terminal device, wireless terminal device in industrial control, wireless terminal device in self-driving, wireless terminal device in remote medical surgery, wireless terminal device in smart grid, wireless terminal device in transportation safety, wireless terminal device in smart city, wireless terminal device in smart home, and red-capped terminal, but is not limited thereto.

[0091] In some embodiments, network device 102 may be a node or device that connects a terminal to a wireless network. The network device may include, but is not limited to, nodes such as satellites or drones in non-terrestrial networks, evolved Node B (eNB), next-generation eNB (ng-eNB), next-generation Node B (gNB), next-generation RAN node (NG-RANnode), node B (NB), home node B (HNB), home evolved node B (HeNB), wireless backhaul device, radio network controller (RNC), base station controller (BSC), base transceiver station (BTS), base band unit (BBU), mobile switching center, base station in 6G communication system, open RAN, cloud RAN, base station in other communication systems, and access node in Wi-Fi system.

[0092] In some embodiments, the technical solutions of this application can be applied to the Open RAN architecture. In this case, the interfaces between or within access network devices involved in the embodiments of this application can be transformed into internal interfaces of Open RAN. The processes and information interactions between these internal interfaces can be implemented by software or programs.

[0093] In some embodiments, the access network device may be composed of a central unit (CU) and a distributed unit (DU). The CU may also be called a control unit. The CU-DU structure can separate the protocol layer of the access network device. Some of the protocol layer functions are centrally controlled by the CU, while the remaining part or all of the protocol layer functions are distributed in the DU and centrally controlled by the CU. However, this is not the only possibility.

[0094] It is understood that the communication system described in the embodiments of this application is for the purpose of more clearly illustrating the technical solutions of the embodiments of this application, and does not constitute a limitation on the technical solutions proposed in the embodiments of this application. As those skilled in the art will know, with the evolution of system architecture and the emergence of new business scenarios, the technical solutions proposed in the embodiments of this application are also applicable to similar technical problems.

[0095] The following embodiments of this application can be applied to Figure 1A The communication system 100 shown, or a part thereof, but not limited to it. Figure 1A The entities shown are illustrative; a communication system may include... Figure 1A All or part of the main body, or may include Figure 1A Other entities besides the main body, the number and form of each entity are arbitrary, each entity can be physical or virtual, the connection relationship between the entities is illustrative, the entities can be unconnected or connected, and the connection can be in any way, it can be a direct connection or an indirect connection, it can be a wired connection or a wireless connection.

[0096] The embodiments of this application can be applied to Non-terrestrial Networks (NTN), Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 5G New Radio (NR), Future Radio Access (FRA), New-Radio Access Technology (RAT), New Radio (NR), New Radio Access (NX), Future Generation Radio Access (FX), Global System for Mobile Communications (GSM (registered trademark)), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX, a registered trademark), IEEE 802.20, Ultra-Wideband (UWB), Bluetooth (a registered trademark), Public Land Mobile Network (PLMN) networks, Device-to-Device (D2D) systems, Machine-to-Machine (M2M) systems, Internet of Things (IoT) systems, Vehicle-to-Everything (V2X) systems, systems utilizing other communication methods, and next-generation systems built upon them. Furthermore, multiple systems can be combined (e.g., a combination of LTE or LTE-A with 5G).

[0097] With the continuous development of mobile communication technology, communication scenarios are becoming more diversified, and the demand for location services is constantly increasing. In related technologies, terminals typically need to be in Radio Resource Control (RRC) connected state (RRC_Connected) to perform location measurement and reporting, which leads to high signaling load and power consumption, and also limits the application of location services in some low-power scenarios.

[0098] In some embodiments, positioning needs may also exist in low-power or non-persistent connection scenarios (such as low-power, wide-coverage scenarios like the Internet of Things, smart sensing, and smart wearable scenarios). To adapt to these positioning needs, it is possible to consider performing positioning measurements even when the device is in an inactive state (RRC_Inactive).

[0099] In some embodiments, it may be considered to allow the terminal to transmit a Sounding Reference Signal (SRS) while in an inactive state, and to perform SRS-based positioning, which can balance power consumption and positioning efficiency.

[0100] The communication method and apparatus provided in this application will be described in detail below with reference to the accompanying drawings.

[0101] Figure 2A This is an interactive schematic diagram illustrating a communication method according to an embodiment of this application. For example... Figure 2A As shown in the embodiments of this application, the method is used in a communication system 100, and the method includes:

[0102] In step S2101, network device 102 sends configuration information.

[0103] In some embodiments, terminal 101 receives the configuration information sent by network device 102.

[0104] In some embodiments, the above configuration information is used to configure the terminal 101 to perform an SRS-based positioning process when it is in an inactive state.

[0105] In some embodiments, the above configuration information is used to configure the terminal 101 to send SRS when it is in an inactive state.

[0106] In some embodiments, the above configuration information may be, for example, "srs-PosConfig (SRS positioning configuration)", "srs-PosRRC-Inactive (inactive SRS positioning)", "positioning configuration information", "SRS configuration information", etc.

[0107] Furthermore, based on the above configuration information, when inactive, terminal 101 can send SRS to network device 102 to perform an SRS-based positioning process.

[0108] In some embodiments, the above configuration information may include at least one of the following:

[0109] srs-PosRRC-InactiveValidityAreaPreConfigList (a list of pre-configured inactive SRS location valid areas) is used to indicate a list of predefined SRS location valid areas;

[0110] srs-PosRRC-InactiveValidityAreaNonPreConfig (non-pre-configured inactive SRS location valid area) is used to configure non-predefined SRS location valid areas (i.e. dynamically issued or triggered);

[0111] srs-PosConfigValidityArea (SRS location configuration valid area) is used to determine the valid area for SRS location transmission;

[0112] autonomousTA - AdjustmentEnabled indicates whether the terminal can automatically adjust the timing advance (TA);

[0113] SRS-PosRRC-InactiveValidityAreaConfig (Inactive SRS Positioning Valid Area Configuration) is used to determine the valid area for SRS positioning transmission in the inactive state.

[0114] SRS-PosResourceSet (SRS Positioning Resource Set) is used to configure the resources corresponding to SRS transmission.

[0115] It should be noted that when terminal 101 is inactive and SRS positioning transmission is configured, if cell reselection or relay reselection occurs, it is necessary to determine whether the new camping cell is within the valid area defined by the above configuration information, and then decide on the subsequent operation.

[0116] Optionally, if the new cell is located within the aforementioned effective area and meets conditions such as TA verification, the terminal 101 can continue to perform SRS transmission for positioning.

[0117] Optionally, if the new cell is not in the above-mentioned valid area, or if the new cell is in a different srs-PosConfigValidityArea from the original cell, the terminal 101 needs to stop the relevant timer (such as inactivePosSRS-ValidityAreaTAT) and trigger the RRC connection recovery process to reacquire the positioning configuration.

[0118] After performing step S2101, the communication method may further include performing steps S2102a and / or S2102b:

[0119] In step S2102a, terminal 101 determines that the update timer TA is advanced.

[0120] In step S2102b, the lower layer of terminal 101 instructs the higher layer of terminal 101 to update the stored RSRP.

[0121] In some embodiments, terminal 101 may determine to update TA, and the lower layer (e.g., physical layer) of terminal 101 updates TA.

[0122] In some embodiments, terminal 101 determines to update TA, and the lower layer of terminal 101 may instruct the upper layer of the terminal to update the stored Reference Signal Receiving Power (RSRP).

[0123] In some embodiments, the higher layers of terminal 101 update the stored RSRP based on instructions from the lower layers.

[0124] Optionally, the lower layer of terminal 101 is the physical layer.

[0125] Optionally, the higher layers of terminal 101 are the Medium Access Control (MAC) layer and / or the Radio Resource Control (RRC) layer.

[0126] In some embodiments, "lower layer" and "higher layer" can also be relative. For the RRC layer, the lower layer may include the physical layer and / or the MAC layer. For the MAC layer, the lower layer includes the physical layer, and the higher layer includes the RRC layer. For the physical layer, the higher layer includes the RRC layer and / or the MAC layer.

[0127] In some embodiments, the physical layer of terminal 101 updates the TA and instructs the MAC layer to update the stored RSRP. The MAC layer of terminal 101 updates the stored RSRP based on the instruction from the physical layer.

[0128] In some embodiments, the RRC layer of terminal 101 does not instruct the physical layer to update TA.

[0129] In some embodiments, the RRC layer of terminal 101 does not instruct the MAC layer to update the stored RSRP.

[0130] In some embodiments, the RRC layer of terminal 101 does not instruct the physical layer to update TA, nor does it instruct the MAC layer to update the stored RSRP.

[0131] The RSRP stored in the MAC is used by terminal 101 to verify TA.

[0132] In some embodiments, for TA verification of SRS transmission in the inactive state, the parameter inactivePosSRS-RSRP-ChangeThreshold (inactive state positioning SRS-RSRP change threshold) can be configured, which is the RSRP increment / decrement threshold used for timed alignment verification.

[0133] Optionally, if the difference between the RSRP of the currently camped cell and the stored RSRP does not exceed the threshold configured above, the TA of the current application can be considered valid.

[0134] In this embodiment, terminal 101 supports automatic adjustment of TA, and network device 102 is configured with automatic timed adjustment enabled. In the inactive state, terminal 101 transmits SRS based on the configuration information sent by network device 102.

[0135] In some embodiments, terminal 101 may also send capability information to network device 102, instructing terminal 101 to support automatic TA adjustment. For example, terminal 101 may send capability information (including posUE-TA-AutoAdjustment) to network device 102, instructing network device 102 to support automatic TA adjustment during the positioning process.

[0136] In some embodiments, terminal 101 performs cell reselection during the positioning process and determines to camp on a new cell (which may be referred to as the target cell) from the original cell, and the target cell is located within the effective area configured by network device 102. Terminal 101 determines that the difference in downlink timing (DLtiming) between the original cell and the target cell meets a preset condition and determines to update the TA.

[0137] Optionally, the aforementioned preset condition may be, for example, that the absolute value of the downlink timing difference between the target cell and the original cell is ≥ CP / 4. Here, CP stands for Cyclic Prefix. ≥ CP / 4 means ≥ 1 / 4 of the CP length.

[0138] Furthermore, terminal 101 can determine that TA will be automatically updated: TA adjusted =TA old +2*(T new -T old In this process, the physical layer of terminal 101 updates the TA and can instruct the MAC layer to update the stored RSRP.

[0139] Among them, TA adjusted It is the adjusted TA in the new residential area (i.e., the target area). old It refers to the TA and T systems previously used in the original residential communities (i.e., the original communities). new T is the downlink timing for the new residential area (i.e., the target residential area) after the reselection of residential areas. old This is the downlink timing for the original residential area (i.e., the area where the community was previously located) before the community re-election. (T) new -T old This is the difference in downlink timing between the target cell and the original cell.

[0140] Optionally, if the TA value is negative after applying automatic TA adjustment, then the TA should be set to zero. That is, the TA applied in a newly established cell should be set to max(TA). adjusted ,0).

[0141] In some embodiments, further, for the MAC layer of terminal 101, terminal 101 is configured to transmit SRS in an inactive state, and terminal 101 is configured to SRS positioning with an effective area, and the lower layer (or physical layer) instructs the MAC layer to update the stored RSRP. The MAC layer of terminal 101 can update the RSRP of the downlink path loss reference based on the current RSRP value of the downlink path loss reference of the currently camped cell.

[0142] In some embodiments, further, for the RRC layer of terminal 101, it is determined that the target cell is located within the valid area configured by network device 102, and that the target cell and the original cell are in the same srs-PosConfigValidityArea. If the TA verification condition is met, the RRC layer can instruct the lower layer to continue transmitting SRS.

[0143] Optionally, if the selected cell is in a different srs-PosConfigValidityArea than the previously camped cell: initiate the RRC connection recovery process.

[0144] In some embodiments, the terms “network”, “radio”, “wireless”, “radio access network (RAN)”, “access network (AN)”, “RAN-based”, “cell”, “frequency band”, “frequency point”, “base station”, and “node” can be used interchangeably.

[0145] In some embodiments, the terms “change,” “update,” etc., can be used interchangeably.

[0146] In some embodiments, the names of information, etc., are not limited to the names described in the embodiments. Terms such as "information", "message", "signal", "signaling", "report", "configuration", "indication", "instruction", "command", "channel", "parameter", "domain", "field", "symbol", "symbol", "codebook", "codeword", "codepoint", "bit", "data", "program", and "chip" can be used interchangeably.

[0147] In some embodiments, the names of information, etc., are not limited to the names described in the embodiments. Terms such as "information", "message", "signal", "signaling", "report", "configuration", "indication", "instruction", "command", "channel", "parameter", "domain", "field", "symbol", "symbol", "codebook", "codeword", "codepoint", "bit", "data", "program", and "chip" can be used interchangeably.

[0148] In some embodiments, “get,” “obtain,” “receive,” “transmit,” “bidirectional transmission,” and “send and / or receive” can be used interchangeably and can be interpreted as receiving from other entities, obtaining from protocols, obtaining from higher layers, obtaining through self-processing, or automatically implementing, among other meanings.

[0149] In some embodiments, terms such as “send,” “transmit,” “report,” “distribute,” “transfer,” “bidirectional transmission,” “send and / or receive” can be used interchangeably.

[0150] In some embodiments, terms such as "certain," "preset," "default," "set," "indicated," "a certain," "any," and "first" can be used interchangeably. "Certain A," "preset A," "default A," "set A," "indicated A," "a certain A," "any A," and "first A" can be interpreted as A pre-defined in a protocol or the like, or as A obtained through setting, configuration, or instruction, or as specific A, a certain A, any A, or first A, but are not limited thereto.

[0151] The communication method involved in the embodiments of this application may include at least one of steps S2101 to S2102. For example, step S2101 may be implemented as a standalone embodiment, step S2102 may be implemented as a standalone embodiment, step S2101+S2102 may be implemented as a standalone embodiment, etc., but is not limited thereto.

[0152] In some embodiments, step S2101 is optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0153] In some embodiments, see Figure 2A Other optional implementation methods described before or after the corresponding instruction manual.

[0154] This application embodiment also illustrates a communication method. The method involved in this application embodiment is used in a communication system 100. The method includes:

[0155] In step S2201, network device 102 sends configuration information.

[0156] In some embodiments, terminal 101 receives the configuration information sent by network device 102.

[0157] In some embodiments, the above configuration information is used to configure the terminal 101 to perform SRS-based positioning when it is in an inactive state.

[0158] In some embodiments, the above configuration information may be, for example, "srs-PosConfig (SRS positioning configuration)", "srs-PosRRC-Inactive (inactive SRS positioning)", "positioning configuration information", "SRS configuration information", etc.

[0159] Furthermore, based on the above configuration information, when inactive, terminal 101 can send SRS to network device 102, and the sent SRS is used for the location of terminal 101.

[0160] In some embodiments, the above configuration information may include at least one of the following:

[0161] srs-PosRRC-InactiveValidityAreaPreConfigList (a list of pre-configured inactive SRS location valid areas) is used to indicate a list of predefined SRS location valid areas;

[0162] srs-PosRRC-InactiveValidityAreaNonPreConfig (non-pre-configured inactive SRS location valid area) is used to configure non-predefined SRS location valid areas (i.e. dynamically issued or triggered);

[0163] srs-PosConfigValidityArea (SRS location configuration valid area) is used to determine the valid area for SRS location transmission;

[0164] autonomousTA - AdjustmentEnabled indicates whether the terminal can automatically adjust the timing advance (TA);

[0165] SRS-PosRRC-InactiveValidityAreaConfig (Inactive SRS Positioning Valid Area Configuration) is used to determine the valid area for SRS positioning transmission in the inactive state.

[0166] SRS-PosResourceSet (SRS Positioning Resource Set) is used to configure the resources corresponding to SRS transmission.

[0167] It should be noted that when terminal 101 is inactive and SRS positioning transmission is configured, if cell reselection or relay reselection occurs, it is necessary to determine whether the new camping cell is within the valid area defined by the above configuration information, and then decide on the subsequent operation.

[0168] Optionally, if the new cell is located within the aforementioned effective area and meets conditions such as TA verification, the terminal 101 can continue to perform SRS transmission for positioning.

[0169] Optionally, if the new cell is not in the above-mentioned valid area, or if the new cell is in a different srs-PosConfigValidityArea from the original cell, the terminal 101 needs to stop the relevant timer (such as inactivePosSRS-ValidityAreaTAT) and trigger the RRC connection recovery process to reacquire the positioning configuration.

[0170] In step S2202, terminal 101 sends capability information.

[0171] In some embodiments, terminal 101 may also send capability information to network device 102, instructing terminal 101 to support automatic TA adjustment. For example, terminal 101 may send capability information (including posUE-TA-AutoAdjustment) to network device 102, instructing network device 102 to support automatic TA adjustment during the positioning process.

[0172] After performing step S2202, the communication method may further include performing steps S2203a and / or S2203b:

[0173] In step S2203a, terminal 101 determines that the update timer TA is advanced.

[0174] In step S2203b, the lower layer of terminal 101 instructs the higher layer of terminal 101 to update the stored RSRP.

[0175] The lower layer of terminal 101 instructs the higher layer of terminal 101 to update the RSRP of the storage.

[0176] In some embodiments, terminal 101 may determine to update TA, and the lower layer (e.g., physical layer) of terminal 101 updates TA.

[0177] In some embodiments, terminal 101 determines to update TA, and the lower layer of terminal 101 may instruct the upper layer of the terminal to update the stored RSRP.

[0178] In some embodiments, the higher layers of terminal 101 update the stored RSRP based on instructions from the lower layers.

[0179] Optionally, the lower layer of terminal 101 is the physical layer.

[0180] Optionally, the higher layers of terminal 101 are the Media Access Control (MAC) layer and / or the Radio Resource Control (RRC) layer.

[0181] In some embodiments, "lower layer" and "higher layer" can also be relative. For the RRC layer, the lower layer may include the physical layer and / or the MAC layer. For the MAC layer, the lower layer includes the physical layer, and the higher layer includes the RRC layer. For the physical layer, the higher layer includes the RRC layer and / or the MAC layer.

[0182] In some embodiments, the physical layer of terminal 101 updates the TA and instructs the MAC to update the stored RSRP.

[0183] In some embodiments, the MAC layer of terminal 101 updates the stored RSRP based on instructions from the physical layer.

[0184] In some embodiments, the RRC layer of terminal 101 does not instruct the physical layer to update TA.

[0185] In some embodiments, the RRC layer of terminal 101 does not instruct the MAC layer to update the stored RSRP.

[0186] In some embodiments, the RRC layer of terminal 101 does not instruct the physical layer to update TA, nor does it instruct the MAC layer to update the stored RSRP.

[0187] The RSRP stored in the MAC is used by terminal 101 to verify TA.

[0188] In some embodiments, for TA verification of SRS transmission in the inactive state, the parameter inactivePosSRS-RSRP-ChangeThreshold (inactive state positioning SRS-RSRP change threshold) can be configured, which is the RSRP increment / decrement threshold used for timed alignment verification.

[0189] Optionally, if the difference between the RSRP of the currently camped cell and the stored RSRP does not exceed the threshold configured above, the TA of the current application can be considered valid.

[0190] In this embodiment, terminal 101 supports automatic adjustment of TA, and network device 102 is configured with automatic timed adjustment enabled. In the inactive state, terminal 101 transmits SRS based on the configuration information sent by network device 102.

[0191] In some embodiments, terminal 101 performs cell reselection during the positioning process and determines to camp on a new cell (which may be referred to as the target cell) from the original cell, and the target cell is located within the effective area configured by network device 102. Terminal 101 determines that the difference in downlink timing (DLtiming) between the original cell and the target cell meets a preset condition and determines to update the TA.

[0192] Optionally, the aforementioned effective area may be included in the configuration information sent by network device 102.

[0193] Optionally, the aforementioned preset condition may be, for example, that the absolute value of the downlink timing difference between the target cell and the original cell is ≥ CP / 4. Here, CP stands for Cyclic Prefix. ≥ CP / 4 means ≥ 1 / 4 of the CP length.

[0194] Furthermore, terminal 101 can determine that TA will be automatically updated: TA adjusted =TA old +2*(T new -T old In this process, the physical layer of terminal 101 updates the TA and can instruct the MAC layer to update the stored RSRP.

[0195] Among them, TA adjdusted It is the adjusted TA in the new residential area (i.e., the target area). old It refers to the TA and T systems previously used in the original residential communities (i.e., the original communities). new T is the downlink timing for the new residential area (i.e., the target residential area) after the reselection of residential areas. old This is the downlink timing for the original residential area (i.e., the area where the community was previously located) before the community re-election. (T) new -T old This is the difference in downlink timing between the target cell and the original cell.

[0196] Optionally, if the TA value is negative after applying automatic TA adjustment, then the TA should be set to zero. That is, the TA applied in a newly established cell should be set to max(TA). adjusted ,0).

[0197] In some embodiments, further, for the MAC layer of terminal 101, terminal 101 is configured to transmit SRS in an inactive state, and terminal 101 is configured to SRS positioning with an effective area, and the lower layer (or physical layer) instructs the MAC layer to update the stored RSRP. The MAC layer of terminal 101 can update the RSRP of the downlink path loss reference based on the current RSRP value of the downlink path loss reference of the currently camped cell.

[0198] In some embodiments, further, for the RRC layer of terminal 101, it is determined that the target cell is located within the valid area configured by network device 102, and that the target cell and the original cell are in the same srs-PosConfigValidityArea. If the TA verification condition is met, the RRC layer can instruct the lower layer to continue transmitting SRS.

[0199] Optionally, if the selected cell is in a different srs-PosConfigValidityArea than the previously camped cell: initiate the RRC connection recovery process.

[0200] The communication method involved in the embodiments of this application may include at least one of steps S2201 to S2203. For example, step S2201 may be implemented as an independent embodiment, step S2202 may be implemented as an independent embodiment, step S2203 may be implemented as an independent embodiment, step S2201+S2202 may be implemented as an independent embodiment, step S2202+S2203 may be implemented as an independent embodiment, step S2201+S2202+S2203 may be implemented as an independent embodiment, etc., but not limited thereto.

[0201] In some embodiments, steps S2201 and S2202 are optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0202] In some embodiments, steps S2201 and S2202 may be performed in an alternate order or simultaneously.

[0203] This application embodiment also illustrates a communication method. The method involved in this application embodiment is used in a communication system 100. The method includes:

[0204] Step S2301: Network device 102 sends configuration information.

[0205] In some embodiments, terminal 101 receives the configuration information sent by network device 102.

[0206] In some embodiments, the above configuration information is used to configure the terminal 101 to perform SRS-based positioning when it is in an inactive state.

[0207] In some embodiments, the above configuration information may be, for example, "srs-PosConfig (SRS positioning configuration)", "srs-PosRRC-Inactive (inactive SRS positioning)", "positioning configuration information", "SRS configuration information", etc.

[0208] Furthermore, based on the above configuration information, when inactive, terminal 101 can send SRS to network device 102, and the sent SRS is used for the location of terminal 101.

[0209] In some embodiments, the above configuration information may include at least one of the following:

[0210] srs-PosRRC-InactiveValidityAreaPreConfigList (a list of pre-configured inactive SRS location valid areas) is used to indicate a list of predefined SRS location valid areas;

[0211] srs-PosRRC-InactiveValidityAreaNonPreConfig (non-pre-configured inactive SRS location valid area) is used to configure non-predefined SRS location valid areas (i.e. dynamically issued or triggered);

[0212] srs-PosConfigValidityArea (SRS location configuration valid area) is used to determine the valid area for SRS location transmission;

[0213] autonomousTA - AdjustmentEnabled indicates whether the terminal can automatically adjust the timing advance (TA);

[0214] SRS-PosRRC-InactiveValidityAreaConfig (Inactive SRS Positioning Valid Area Configuration) is used to determine the valid area for SRS positioning transmission in the inactive state.

[0215] SRS-PosResourceSet (SRS Positioning Resource Set) is used to configure the resources corresponding to SRS transmission.

[0216] It should be noted that when terminal 101 is inactive and SRS positioning transmission is configured, if cell reselection or relay reselection occurs, it is necessary to determine whether the new camping cell is within the valid area defined by the above configuration information, and then decide on the subsequent operation.

[0217] Optionally, if the new cell is located within the aforementioned effective area and meets conditions such as TA verification, the terminal 101 can continue to perform SRS transmission for positioning.

[0218] Optionally, if the new cell is not in the above-mentioned valid area, or if the new cell is in a different srs-PosConfigValidityArea from the original cell, the terminal 101 needs to stop the relevant timer (such as inactivePosSRS-ValidityAreaTAT) and trigger the RRC connection recovery process to reacquire the positioning configuration.

[0219] In step S2302, terminal 101 sends capability information.

[0220] In some embodiments, network device 102 receives the aforementioned capability information sent by terminal 101.

[0221] In some embodiments, terminal 101 may also send capability information to network device 102, instructing terminal 101 to support automatic TA adjustment. For example, terminal 101 may send capability information (including posUE-TA-AutoAdjustment) to network device 102, instructing network device 102 to support automatic TA adjustment during the positioning process.

[0222] After performing step S2202, the communication method may further include performing steps S2203a and / or S2203b:

[0223] In step S2303, network device 102 sends enable information.

[0224] In some embodiments, terminal 101 receives the aforementioned enable information sent by network device 102.

[0225] In some embodiments, the above-mentioned enabling information is used to indicate that the automatic adjustment TA of the terminal 101 is enabled, that is, the terminal 101 can automatically update the TA when it determines that the TA needs to be adjusted.

[0226] In some embodiments, the enabling information may be included in the configuration information sent by the network device 102.

[0227] In some embodiments, the aforementioned enabling information may be, for example, autonomous TA-AdjustmentEnabled, used to indicate whether the terminal can automatically adjust the TA.

[0228] In step S2304, terminal 101 determines the update timing advance TA, and the lower layer of terminal 101 instructs the higher layer of terminal 101 to update the stored RSRP.

[0229] The lower layer of terminal 101 instructs the higher layer of terminal 101 to update the RSRP of the storage.

[0230] In some embodiments, terminal 101 may determine to update TA, and the lower layer (e.g., physical layer) of terminal 101 updates TA.

[0231] In some embodiments, terminal 101 determines to update TA, and the lower layer of terminal 101 may instruct the upper layer of the terminal to update the stored RSRP.

[0232] In some embodiments, the higher layers of terminal 101 update the stored RSRP based on instructions from the lower layers.

[0233] Optionally, the lower layer of terminal 101 is the physical layer.

[0234] Optionally, the higher layers of terminal 101 are the Media Access Control (MAC) layer and / or the Radio Resource Control (RRC) layer.

[0235] In some embodiments, "lower layer" and "higher layer" can also be relative. For the RRC layer, the lower layer may include the physical layer and / or the MAC layer. For the MAC layer, the lower layer includes the physical layer, and the higher layer includes the RRC layer. For the physical layer, the higher layer includes the RRC layer and / or the MAC layer.

[0236] In some embodiments, the physical layer of terminal 101 updates the TA and instructs the MAC to update the stored RSRP.

[0237] In some embodiments, the MAC layer of terminal 101 updates the stored RSRP based on instructions from the physical layer.

[0238] In some embodiments, the RRC layer of terminal 101 does not instruct the physical layer to update TA.

[0239] In some embodiments, the RRC layer of terminal 101 does not instruct the MAC layer to update the stored RSRP.

[0240] In some embodiments, the RRC layer of terminal 101 does not instruct the physical layer to update TA, nor does it instruct the MAC layer to update the stored RSRP.

[0241] The RSRP stored in the MAC is used by terminal 101 to verify TA.

[0242] In some embodiments, for TA verification of SRS transmission in the inactive state, the parameter inactivePosSRS-RSRP-ChangeThreshold (inactive state positioning SRS-RSRP change threshold) can be configured, which is the RSRP increment / decrement threshold used for timed alignment verification.

[0243] Optionally, if the difference between the RSRP of the currently camped cell and the stored RSRP does not exceed the threshold configured above, the TA of the current application can be considered valid.

[0244] In this embodiment, terminal 101 supports automatic adjustment of TA, and network device 102 is configured with automatic timed adjustment enabled. In the inactive state, terminal 101 transmits SRS based on the configuration information sent by network device 102.

[0245] In some embodiments, terminal 101 performs cell reselection during the positioning process and determines to camp on a new cell (which may be referred to as the target cell) from the original cell, and the target cell is located within the effective area configured by network device 102. Terminal 101 determines that the difference in downlink timing (DLtiming) between the original cell and the target cell meets a preset condition and determines to update the TA.

[0246] Optionally, the aforementioned effective area may be included in the configuration information sent by network device 102.

[0247] Optionally, the aforementioned preset condition may be, for example, that the absolute value of the downlink timing difference between the target cell and the original cell is ≥ CP / 4. Here, CP stands for Cyclic Prefix. ≥ CP / 4 means ≥ 1 / 4 of the CP length.

[0248] Furthermore, terminal 101 can determine that TA will be automatically updated: TA adjusted =TA old +2*(T new -T old In this process, the physical layer of terminal 101 updates the TA and can instruct the MAC layer to update the stored RSRP.

[0249] Among them, TA adjusted It is the adjusted TA in the new residential area (i.e., the target area). old It refers to the TA and T systems previously used in the original residential communities (i.e., the original communities). new T is the downlink timing for the new residential area (i.e., the target residential area) after the reselection of residential areas. old This is the downlink timing for the original residential area (i.e., the area where the community was previously located) before the community re-election. (T) new -T old This is the difference in downlink timing between the target cell and the original cell.

[0250] Optionally, if the TA value is negative after applying automatic TA adjustment, then the TA should be set to zero. That is, the TA applied in a newly established cell should be set to max(TA). adjusted ,0).

[0251] In some embodiments, further, for the MAC layer of terminal 101, terminal 101 is configured to transmit SRS in an inactive state, and terminal 101 is configured to SRS positioning with an effective area, and the lower layer (or physical layer) instructs the MAC layer to update the stored RSRP. The MAC layer of terminal 101 can update the RSRP of the downlink path loss reference based on the current RSRP value of the downlink path loss reference of the currently camped cell.

[0252] In some embodiments, further, for the RRC layer of terminal 101, it is determined that the target cell is located within the valid area configured by network device 102, and that the target cell and the original cell are in the same srs-PosConfigValidityArea. If the TA verification condition is met, the RRC layer can instruct the lower layer to continue transmitting SRS.

[0253] Optionally, if the selected cell is in a different srs-PosConfigValidityArea than the previously camped cell: initiate the RRC connection recovery process.

[0254] The communication method involved in the embodiments of this application may include at least one of steps S2301 to S2304. For example, step S2301 can be implemented as an independent embodiment, step S2302 can be implemented as an independent embodiment, step S2303 can be implemented as an independent embodiment, step S2304 can be implemented as an independent embodiment, step S2301+S2302 can be implemented as an independent embodiment, step S2302+S2303 can be implemented as an independent embodiment, step S2301+S2303+S2304 can be implemented as an independent embodiment, step S2301+S2302+S2304 can be implemented as an independent embodiment, step S2301+S2302+S2303+S2304 can be implemented as an independent embodiment, etc., but not limited to these.

[0255] In some embodiments, steps S2301, S2302, and S2303 are optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0256] In some embodiments, steps S2301, S2302, and S2303 can be arbitrarily interchanged or executed simultaneously.

[0257] Figure 3A This is an interactive schematic diagram illustrating a communication method according to an embodiment of this application. For example... Figure 3A As shown, the embodiments of this application relate to a communication method, which includes:

[0258] In step S3101, terminal 101 determines to update TA, and the lower layer of terminal 101 instructs the higher layer of terminal 101 to update the stored RSRP.

[0259] In this embodiment, terminal 101 is in an inactive state.

[0260] In some embodiments, terminal 101 supports automatic TA adjustment and automatic TA adjustment of terminal 101 is enabled.

[0261] In some embodiments, the higher layer of terminal 101 updates the stored RSRP according to the instructions of the lower layer of terminal 101.

[0262] In some embodiments, the lower layer of terminal 101 is the physical layer, and the higher layer of terminal 101 is the Media Access Control (MAC) layer and / or the RRC layer of terminal 101.

[0263] Optionally, the RRC layer of terminal 101 does not instruct the physical layer of terminal 101 to update the TA; and / or, the RRC layer of terminal 101 does not instruct the MAC layer of terminal 101 to update the stored RSRP.

[0264] In some embodiments, terminal 101 may also receive configuration information sent by network device 102, the configuration information being used to configure terminal 101 to perform a positioning process based on probe reference signal (SRS) when it is in an inactive state. Further, terminal 101 may send SRS to network device 102.

[0265] In some embodiments, the above configuration information is used to configure the terminal 101 to send SRS when it is in an inactive state.

[0266] In some embodiments, terminal 101 may also send capability information to network device 102, the capability information being used to instruct terminal 101 to support adjusting TA during the positioning process.

[0267] In some embodiments, terminal 101 may also receive enable information sent by network device 102, the enable information being used to determine that the automatic adjustment of TA of terminal 101 is enabled.

[0268] In some embodiments, terminal 101 determines that it will camp from the original cell to the target cell, and the target cell is located within the effective area; further, if the difference between the downlink timing of the original cell and the downlink timing of the target cell meets a preset condition, it determines to update the TA.

[0269] The updated TA is determined based on the difference between the downlink timing of the original cell and the downlink timing of the target cell, as well as the TA applied in the original cell.

[0270] In some embodiments, the steps and their optional implementations in other embodiments described before or after this embodiment, as well as other related parts in the specification, can be referred to, and will not be repeated here.

[0271] The following is an exemplary description of the methods described in the above embodiments.

[0272] In some embodiments, when the UE is configured with an associated validity area SRS and automatic TA adjustment, the UE's RRC layer instructs the UE's lower layer to update the TA and the stored RSRP. However, for automatic TA updates and adjustments, the UE's physical layer determines when to update the TA. Updating the TA is a function of the physical layer, that is, it determines whether to update the TA based on physical layer measurements, and does not necessarily need to be updated based on RRC instructions.

[0273] In this embodiment of the application, when the physical layer updates the TA, it can instruct the MAC layer to update the stored RSRP.

[0274] In some embodiments, the MAC layer can update the stored RSRP according to instructions from the physical layer.

[0275] In some embodiments, the RRC layer does not instruct the lower layer to update the TA and the stored RSRP.

[0276] In some embodiments, for a UE in an inactive state performing SRS-based positioning, when the physical layer determines to update the TA, it can instruct the higher layer (MAC layer) to update the stored RSRP. Correspondingly, the higher layer (MAC layer) updates the stored RSRP according to the instruction from the physical layer (lower layer).

[0277] In some embodiments, the above instruction is implemented when the network device is configured with srs-PosRRC-InactiveValidityAreaPreConfigList or srs-PosRRC-InactiveValidityAreaNonPreConfig and UE automatic adjustment TA is configured.

[0278] In some embodiments, for the physical layer: if the UE indicates posUE-TA-AutoAdjustment and transmits SRS based on the SRS-PosResourceSet configuration in SRS-PosRRC-InactiveValidityAreaConfig in the RRC_INACTIVE state: if autonomousTA-AdjustmentEnabled is provided, the UE can update autonomously during cell reselection; if N TA Updated, instructing the MAC layer (higher layer) to update the storage's RSRP.

[0279] In some embodiments, for the MAC layer:

[0280] Optionally, the UE is configured to transmit SRS in the RRC_INACTIVE state: if a timing advance command is received by the Medium Access Control Element (MAC CE); or, if a timing advance command or absolute timing advance command is received during a successfully completed random access process: the stored RSRP of the downlink path loss reference is updated using the current RSRP value of the downlink path loss reference.

[0281] Optionally, the UE is configured to perform SRS transmission in the RRC_INACTIVE state: If the UE is configured to perform SRS positioning with an effective area, and the lower layer (physical layer) indicates that the MAC updates the stored RSRP: the downlink path loss reference RSRP is updated using the current RSRP value of the downlink path loss reference of the camped cell.

[0282] In some embodiments, for the RRC layer, the function of instructing the lower layer to update TA and storedRSRP can be removed:

[0283] Optionally, cell reselection occurs when either srs-PosRRC-InactiveValidityAreaPreConfigList (a list of pre-configured valid SRS location areas in the RRC inactive state) or srs-PosRRC-InactiveValidityAreaNonPreConfig (a list of non-pre-configured valid SRS location areas in the RRC inactive state) is configured, and an ongoing SRS for location transmission exists in the inactive state:

[0284] Optionally, the selected cell may not be included in srs-PosConfigValidityArea (SRS location configuration valid area):

[0285] The RRC layer instructs the lower layer to stop the timer (inactivePosSRS-ValidityAreaTAT); and initiates the RRC connection recovery process.

[0286] Optionally, the selected cell is included in srs-PosConfigValidityArea:

[0287] If the selected cell is in the same srs-PosConfigValidityArea as the previously camped cell: if the timing advance verification condition is met, the RRC layer instructs the lower layer to continue transmitting SRS;

[0288] If the selected cell is in a different srs-PosConfigValidityArea than the previously camped cell: Initiate the RRC connection recovery process; > Instruct the lower layer to stop the timer (inactivePosSRS-ValidityAreaTAT).

[0289] In some embodiments, unless contradictory, the optional implementations in this embodiment can be implemented as independent embodiments, and the optional implementations in this embodiment can also be combined arbitrarily. The technical features of different feasible implementations in this embodiment can be combined to form new optional implementations based on their inherent logical relationships.

[0290] In some embodiments, the steps and their optional implementations in other embodiments described before or after this embodiment, as well as other related parts in the specification, can be referred to, and will not be repeated here.

[0291] This application also proposes an apparatus (also referred to as a communication device, etc.) for implementing any of the above methods. For example, an apparatus is proposed, which includes units or modules for implementing the steps performed by the terminal in any of the above methods. Furthermore, another apparatus is proposed, which includes units or modules for implementing the steps performed by a network device (e.g., an access network device, a core network functional node, a core network device, etc.) in any of the above methods.

[0292] It should be understood that the division of units or modules in the above device is only a logical functional division. In actual implementation, they can be fully or partially integrated into a single physical entity, or they can be physically separated. Furthermore, the units or modules in the device can be implemented by a processor calling software: for example, the device includes a processor connected to a memory containing instructions. The processor calls the instructions stored in the memory to implement any of the above methods or to implement the functions of the units or modules in the above device. The processor can be, for example, a general-purpose processor, such as a Central Processing Unit (CPU) or a microprocessor, and the memory can be internal or external to the device. Alternatively, the units or modules in the device can be implemented in the form of hardware circuits. The functionality of some or all of the units or modules can be achieved through the design of these hardware circuits, which can be understood as one or more processors. For example, in one implementation, the hardware circuit is an application-specific integrated circuit (ASIC). The functionality of some or all of the units or modules is achieved through the design of the logical relationships between the components within the circuit. In another implementation, the hardware circuit can be implemented using a programmable logic device (PLD). Taking a field-programmable gate array (FPGA) as an example, it can include a large number of logic gates. The connection relationships between the logic gates are configured through configuration files, thereby achieving the functionality of some or all of the units or modules. All units or modules of the above device can be implemented entirely through processor-called software, entirely through hardware circuits, or partially through processor-called software with the remaining parts implemented through hardware circuits.

[0293] In this application embodiment, the processor is a circuit with signal processing capabilities. In one implementation, the processor can be a circuit with instruction read and execute capabilities, such as a Central Processing Unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), or a digital signal processor (DSP). In another implementation, the processor can implement certain functions through the logical relationships of hardware circuits. The logical relationships of the aforementioned hardware circuits are fixed or reconfigurable. For example, the processor is a hardware circuit implemented using an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In a reconfigurable hardware circuit, the process of the processor loading a configuration document and configuring the hardware circuit can be understood as the process of the processor loading instructions to implement the functions of some or all of the above units or modules. Furthermore, it can also be a hardware circuit designed for artificial intelligence, which can be understood as an ASIC, such as a Neural Network Processing Unit (NPU), a Tensor Processing Unit (TPU), or a Deep Learning Processing Unit (DPU).

[0294] Figure 4A This is a schematic diagram of the structure of a terminal according to an embodiment of this application. Terminal 4100 is used to execute any of the above methods. In some embodiments, such as... Figure 4AAs shown, terminal 4100 may include at least one of a transceiver module 4101, a processing module 4102, etc. In some embodiments, the processing module 4102 is used to determine the update timing advance (TA), and the lower layer of the terminal instructs the higher layer of the terminal to update the stored reference signal received power (RSRP); wherein the terminal is in an inactive state, the terminal supports autonomous TA adjustment, and the autonomous timing advance adjustment enable of the terminal is enabled. Optionally, the transceiver module is used to perform at least one of the communication steps such as sending and / or receiving performed by terminal 101 in any of the above methods (e.g., steps S2101, S2201, S2202, S2301, S2302, S2303, but not limited thereto), which will not be elaborated here. Optionally, the above processing module is used to execute at least one of the other steps executed by the terminal 101 in any of the above methods (e.g., steps S2102a, S2102b, S2203a, S2203b, S2304, S3101, but not limited thereto), which will not be elaborated here.

[0295] Figure 4B This is a schematic diagram of the network device proposed in an embodiment of this application. Network device 4200 is used to perform any of the above methods. In some embodiments, such as... Figure 4B As shown, network device 4200 may include at least one of a transceiver module 4201, a processing module 4202, etc. In some embodiments, the transceiver module 4201 is used to send configuration information to a terminal, the configuration information being used to configure the terminal to perform positioning based on a Sounding Reference Signal (SRS) when it is in an inactive state; the transceiver module 4201 is also used to send SRS to the network device. Optionally, the transceiver module is used to perform at least one of the communication steps (e.g., steps S2101, S2201, S2202, S2301, S2302, S2303, but not limited thereto) performed by network device 102 in any of the above methods, which will not be elaborated here. Optionally, the processing module is used to perform at least one of the other steps performed by network device 102 in any of the above methods, which will not be elaborated here.

[0296] In some embodiments, the transceiver module may include a transmitting module and / or a receiving module, which may be separate or integrated. Optionally, the transceiver module may be interchangeable with a transceiver.

[0297] In some embodiments, the processing module may be a single module or may include multiple sub-modules. Optionally, the multiple sub-modules may each perform all or part of the steps required by the processing module.

[0298] In some embodiments, the processing module can be replaced by the processor, and the transceiver module can be replaced by the transceiver.

[0299] Figure 5A This is a schematic diagram of the structure of the communication device 5100 proposed in this application embodiment. The communication device 5100 can be a network device (e.g., access network device, core network device, etc.), a terminal (e.g., a terminal), a chip, chip system, or processor that supports the network device in implementing any of the above methods, or a chip, chip system, or processor that supports the terminal in implementing any of the above methods. The communication device 5100 can be used to implement the methods described in the above method embodiments; for details, please refer to the descriptions in the above method embodiments.

[0300] like Figure 5A As shown, the communication device 5100 is used to execute any of the above methods. In some embodiments, the communication device 5100 includes one or more processors 5101. The processor 5101 may be a general-purpose processor or a special-purpose processor, such as a baseband processor or a central processing unit. The baseband processor may be used to process communication protocols and communication data, and the central processing unit may be used to control communication devices (e.g., base stations, baseband chips, terminal devices, terminal device chips, DUs or CUs, etc.), execute programs, and process program data. Optionally, the communication device 5100 is used to execute any of the above methods. Optionally, one or more processors 5101 are used to invoke instructions to cause the communication device 5100 to execute any of the above methods.

[0301] In some embodiments, the communication device 5100 further includes one or more transceivers 5103. When the communication device 5100 includes one or more transceivers 5103, the transceiver 5103 performs at least one of the communication steps such as sending and / or receiving in the above method (e.g., steps S2101, S2201, S2202, S2301, S2302, S2303, but not limited thereto), and the processor 5101 performs at least one of other steps (e.g., steps S2102a, S2102b, S2203a, S2203b, S2304, S3101, but not limited thereto). In optional embodiments, the transceiver may include a receiver and / or a transmitter, which may be separate or integrated together. Optionally, terms such as transceiver, transceiver unit, transceiver, transceiver circuit, interface circuit, and interface can be used interchangeably; terms such as transmitter, transmitter unit, transmitter, and transmitter circuit can be used interchangeably; and terms such as receiver, receiver unit, receiver, and receiver circuit can be used interchangeably.

[0302] In some embodiments, the communication device 5100 further includes one or more memories 5102 for storing data and / or instructions. Optionally, one or more processors 5101 are used to invoke instructions stored in the memory 5102 to cause the communication device 5100 to perform any of the above methods. Optionally, all or part of the memory 5102 may also be located outside the communication device 5100. In an optional embodiment, the communication device 5100 may include one or more interface circuits 5104. Optionally, the interface circuit 5104 is connected to the memory 5102 and can be used to receive data and / or instructions from the memory 5102 or other devices, and can be used to send data and / or instructions to the memory 5102 or other devices. For example, the interface circuit 5104 can read data and / or instructions stored in the memory 5102 and send the data and / or instructions to the processor 5101.

[0303] The communication device 5100 described in the above embodiments may be a network device or a terminal, but the scope of the communication device 5100 described in this application is not limited thereto, and the structure of the communication device 5100 may vary. Figure 5A The limitations. The communication device may be a standalone device or part of a larger device. For example, the communication device may be: (1) a standalone integrated circuit IC, or chip, or chip system or subsystem; (2) a collection of one or more ICs, optionally including storage components for storing data, programs and / or instructions; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, terminal device, smart terminal device, cellular phone, wireless device, handheld device, mobile unit, vehicle device, network device, cloud device, artificial intelligence device, etc.; (6) others, etc.

[0304] Figure 5B This is a schematic diagram of the structure of chip 5200 according to an embodiment of this application. For cases where the communication device 5100 can be a chip or a chip system, please refer to... Figure 5B The diagram shown is a schematic representation of the structure of chip 5200, but it is not limited to this.

[0305] Chip 5200 includes one or more processors 5201. Chip 5200 is used to perform any of the methods described above.

[0306] In some embodiments, chip 5200 further includes one or more interface circuits 5202. Optionally, terms such as interface circuit, interface, and transceiver pin can be used interchangeably. In some embodiments, chip 5200 further includes one or more memories 5203 for storing data and / or instructions. Optionally, all or part of the memories 5203 may be located outside of chip 5200. Optionally, the interface circuit 5202 is connected to the memories 5203, and the interface circuit 5202 can be used to receive data and / or instructions from the memories 5203 or other devices, and the interface circuit 5202 can be used to send data and / or instructions to the memories 5203 or other devices. For example, the interface circuit 5202 can read data and / or instructions stored in the memories 5203 and send the data and / or instructions to the processor 5201.

[0307] In some embodiments, the interface circuit 5202 performs at least one of the communication steps such as sending and / or receiving in the above-described method (e.g., steps S2101, S2201, S2202, S2301, S2302, S2303, but not limited thereto). The interface circuit 5202 performing the communication steps such as sending and / or receiving in the above-described method refers, for example, to the interface circuit 5202 performing data and / or instruction interaction between the processor 5201, the chip 5200, the memory 5203, or the transceiver device. In some embodiments, the processor 5201 performs at least one of other steps (e.g., steps S2102a, S2102b, S2203a, S2203b, S2304, S3101, but not limited thereto).

[0308] The modules and / or devices described in the various embodiments, such as virtual devices, physical devices, and chips, can be combined or separated arbitrarily as needed. Optionally, some or all steps can also be performed collaboratively by multiple modules and / or devices, which is not limited here.

[0309] This application also proposes a storage medium storing instructions that, when executed on a communication device, cause the communication device to perform any of the above methods. Optionally, the storage medium is an electronic storage medium. Optionally, the storage medium is a computer-readable storage medium, but not limited thereto; it may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but not limited thereto; it may also be a temporary storage medium.

[0310] This application also proposes a program product, including a program and / or instructions, which, when executed by a communication device, cause the communication device to perform any of the above methods. Optionally, the program product is a computer program product. Optionally, the program product is stored on the storage medium.

[0311] This application also proposes a computer program that, when run on a computer, causes the computer to perform any of the above methods.

Claims

1. A communication method, characterized in that, The method is executed by a terminal, and the method includes: The lower layer of the terminal determines the advance timing of the update (TA), and the higher layer of the terminal instructs the higher layer of the terminal to update the stored reference signal received power (RSRP). The terminal is in an inactive state.

2. The method according to claim 1, characterized in that, The terminal supports automatic TA adjustment and the automatic TA adjustment of the terminal is enabled.

3. The method according to claim 1, characterized in that, The higher layer of the terminal updates the stored RSRP according to the instructions of the lower layer of the terminal.

4. The method according to any one of claims 1-3, characterized in that, The lower layer of the terminal is the physical layer, and the higher layer of the terminal is the Media Access Control (MAC) layer and / or the RRC layer of the terminal.

5. The method according to claim 4, characterized in that, The terminal's RRC layer does not instruct the terminal's physical layer to update the TA; and / or, The RRC layer of the terminal does not instruct the MAC layer of the terminal to update the stored RSRP.

6. The method according to any one of claims 1-5, characterized in that, The method further includes: The terminal receives configuration information sent by a network device, the configuration information being used to configure the terminal to send a probe reference signal (SRS) when it is in an inactive state. Send SRS to the network device.

7. The method according to claim 6, characterized in that, The method further includes: Send capability information to the network device, the capability information indicating that the terminal supports adjusting the TA during the positioning process.

8. The method according to claim 7, characterized in that, The method further includes: The terminal receives enable information sent by the network device, which is used to determine that the automatic adjustment of TA (Transitional Aspect Ratio) is enabled.

9. The method according to claim 7, characterized in that, The determination of the update timing advance TA includes: It is determined that the user will move from the original residential area to the target residential area, and the target residential area is located within the effective area; If the difference between the downlink timing of the original cell and the downlink timing of the target cell meets a preset condition, the TA is updated.

10. The method according to claim 9, characterized in that, The updated TA is determined based on the difference between the downlink timing of the original cell and the downlink timing of the target cell, and the TA applied in the original cell.

11. A terminal, characterized in that, The terminal includes: The processing module is used to determine the update timing advance TA, and the lower layer of the terminal instructs the higher layer of the terminal to update the stored reference signal received power RSRP; The terminal is in an inactive state.

12. A terminal, characterized in that, include: One or more processors; The terminal is used to execute the communication method according to any one of claims 1-10.

13. A communication device, characterized in that, The communication device is used to perform the communication method according to any one of claims 1-10.

14. A storage medium storing instructions, characterized in that, When the instruction is executed on the communication device, the communication device performs the communication method as described in any one of claims 1-10.

15. A program product comprising at least one of a program and instructions, characterized in that, When at least one of the programs or instructions is executed by the communication device, the communication method of any one of claims 1-10 is implemented.

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