SRS resource validity maintenance method, device and apparatus, and storage medium

Abstract

Provided in the present application are an SRS resource validity maintenance method, device and apparatus, and a storage medium, the method comprising: a first network device sending a first message to a second network device, the first message comprising valid time information of an SRS resource. The first network device sends the first message to the second network device, the first message comprises the effective time information of the SRS resource, and after the second network device receives the first message, the effective time of the SRS resource can be updated according to the first message, so that the effective understanding of each network device on the SRS resource is ensured to be consistent, and the user experience is improved. And the problems of signal interference, positioning failure and the like are avoided.

Description

Technical Field

[0001] The present application relates to the field of wireless communication technology, and in particular to a method, device, apparatus and storage medium for maintaining the effectiveness of SRS resources. Background Art

[0002] In the enhanced non-connected positioning technology, if the sounding reference signal (SRS) resource configured for the terminal (User Equipment, UE) is configured with a valid area, the valid area is defined as a cell list, and the UE can use the SRS resource configuration in these cells.

[0003] In order to avoid resource waste caused by the terminal occupying SRS resources for a long time, a timer may be used to control the validity of the SRS resources. If the timer is running, the SRS resources are considered valid and the terminal may use the SRS resources for positioning.

[0004] However, different cells may have different understandings of the effective time of the SRS resource. In this case, other cells and a location management function (LMF) may configure the SRS resource to other terminals, resulting in signal interference and positioning failure. Summary of the invention

[0005] In view of the problems existing in the related technologies, the embodiments of the present application provide a method, device, apparatus and storage medium for maintaining the validity of SRS resources.

[0006] In a first aspect, an embodiment of the present application provides a method for maintaining the validity of an SRS resource, which is applied to a first network device, including:

[0007] A first message is sent to the second network device, where the first message includes valid time information of the SRS resource.

[0008] Optionally, when the first network device is a first base station and the first network device meets a first condition, the first network device sends the first message to the second network device;

[0009] The first condition includes one or more of the following:

[0010] Configure the validity period of the SRS resource;

[0011] Configuring the SRS resource for the terminal;

[0012] A timing advance TA is configured for the terminal that configures the SRS resource.

[0013] Optionally, when the first network device is a location management function network element and the first network device meets the second condition, the first network device sends the first message to the second network device;

[0014] The second condition includes one or more of the following:

[0015] Receiving the effective time information of the SRS resource;

[0016] Configure the validity period of the SRS resource.

[0017] Optionally, the effective time information of the SRS resource includes one or more of the following:

[0018] The effective time length of the SRS resource;

[0019] The expiration time of the validity period of the SRS resource;

[0020] The first indication information is used to indicate that the effective time of the SRS resource needs to be updated.

[0021] Optionally, the method further comprises:

[0022] receiving a second message sent by the second network device;

[0023] The second message includes one or more of the following:

[0024] second indication information, where the second indication information is used to indicate that the effective time of the SRS resource is successfully updated;

[0025] third indication information, where the third indication information is used to indicate that the effective time of the SRS resource fails to be updated;

[0026] A failed cell list, wherein the failed cell list includes identification information of cells that failed to update the effective time of the SRS resource.

[0027] Optionally, when the second network device is a location management function network element, the second message further includes one or more of the following:

[0028] Fourth indication information, where the fourth indication information is used to instruct the first network device to page the terminal configured with the SRS resource to enter a connected state;

[0029] The valid area of ​​the SRS resource after update.

[0030] Optionally, when the first network device is a first base station, the method further includes one or more of the following:

[0031] Paging the terminal configured with the SRS resource to enter a connected state;

[0032] Updating the valid area of ​​the SRS resource;

[0033] reconfiguring SRS resources for the terminal that configures the SRS resources;

[0034] The updated valid area of ​​the SRS resource is sent to the terminal and / or the second network device that configures the SRS resource.

[0035] Optionally, when the first network device is a location management function network element, the method further includes one or more of the following:

[0036] Sending fourth indication information to the first base station, where the fourth indication information is used to instruct the first base station to page the terminal configured with the SRS resource to enter a connected state;

[0037] Updating the valid area of ​​the SRS resource;

[0038] Sending the updated valid area of ​​the SRS resource to the first base station;

[0039] Reconfigure the SRS resources for the terminal that configures the SRS resources.

[0040] Optionally, the first message further includes identification information of the SRS resource and / or identification information of a terminal that configures the SRS resource.

[0041] Optionally, when the first network device is a first base station, the second network device is a location management function network element and / or a second base station;

[0042] When the first network device is a location management function network element, the second network device is a second base station.

[0043] In a second aspect, an embodiment of the present application further provides a method for maintaining the validity of an SRS resource, which is applied to a second network device, including:

[0044] Receiving a first message sent by a first network device, where the first message includes valid time information of an SRS resource;

[0045] The valid time of the SRS resource is updated according to the first message.

[0046] Optionally, the effective time information of the SRS resource includes one or more of the following:

[0047] The effective time length of the SRS resource;

[0048] The expiration time of the validity period of the SRS resource;

[0049] The first indication information is used to indicate that the effective time of the SRS resource needs to be updated.

[0050] Optionally, the method further comprises:

[0051] Sending a second message to the first network device;

[0052] The second message includes one or more of the following:

[0053] second indication information, where the second indication information is used to indicate that the effective time of the SRS resource is successfully updated;

[0054] third indication information, where the third indication information is used to indicate that the effective time of the SRS resource fails to be updated;

[0055] A failed cell list, wherein the failed cell list includes identification information of cells that failed to update the effective time of the SRS resource.

[0056] Optionally, when the second network device is a location management function network element, the second message further includes one or more of the following:

[0057] Fourth indication information, where the fourth indication information is used to instruct the first network device to page the terminal configured with the SRS resource to enter a connected state;

[0058] The valid area of ​​the SRS resource after update.

[0059] Optionally, the first message further includes identification information of the SRS resource and / or identification information of a terminal that configures the SRS resource.

[0060] Optionally, when the second network device is a second base station, the first network device is a location management function network element and / or a first base station;

[0061] In the case where the second network device is a location management function network element, the first network device is a first base station.

[0062] In a third aspect, an embodiment of the present application further provides a first network device, including a memory, a transceiver, and a processor:

[0063] A memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations:

[0064] A first message is sent to the second network device, where the first message includes valid time information of the SRS resource.

[0065] Optionally, when the first network device is a first base station and the first network device meets a first condition, the first network device sends the first message to the second network device;

[0066] The first condition includes one or more of the following:

[0067] Configure the validity period of the SRS resource;

[0068] Configuring the SRS resource for the terminal;

[0069] A timing advance TA is configured for the terminal that configures the SRS resource.

[0070] Optionally, when the first network device is a location management function network element and the first network device meets the second condition, the first network device sends the first message to the second network device;

[0071] The second condition includes one or more of the following:

[0072] Receiving the effective time information of the SRS resource;

[0073] Configure the validity period of the SRS resource.

[0074] Optionally, the effective time information of the SRS resource includes one or more of the following:

[0075] The effective time length of the SRS resource;

[0076] The expiration time of the validity period of the SRS resource;

[0077] The first indication information is used to indicate that the effective time of the SRS resource needs to be updated.

[0078] Optionally, the operation further includes:

[0079] receiving a second message sent by the second network device;

[0080] The second message includes one or more of the following:

[0081] second indication information, where the second indication information is used to indicate that the effective time of the SRS resource is successfully updated;

[0082] third indication information, where the third indication information is used to indicate that the effective time of the SRS resource fails to be updated;

[0083] A failed cell list, wherein the failed cell list includes identification information of cells that failed to update the effective time of the SRS resource.

[0084] Optionally, when the second network device is a location management function network element, the second message further includes one or more of the following:

[0085] Fourth indication information, where the fourth indication information is used to instruct the first network device to page the terminal configured with the SRS resource to enter a connected state;

[0086] The valid area of ​​the SRS resource after update.

[0087] Optionally, when the first network device is a first base station, the operation further includes one or more of the following:

[0088] Paging the terminal configured with the SRS resource to enter a connected state;

[0089] Updating the valid area of ​​the SRS resource;

[0090] reconfiguring SRS resources for the terminal that configures the SRS resources;

[0091] The updated valid area of ​​the SRS resource is sent to the terminal and / or the second network device that configures the SRS resource.

[0092] Optionally, when the first network device is a location management function network element, the operation further includes one or more of the following:

[0093] Sending fourth indication information to the first base station, where the fourth indication information is used to instruct the first base station to page the terminal configured with the SRS resource to enter a connected state;

[0094] Updating the valid area of ​​the SRS resource;

[0095] Sending the updated valid area of ​​the SRS resource to the first base station;

[0096] Reconfigure the SRS resources for the terminal that configures the SRS resources.

[0097] Optionally, the first message further includes identification information of the SRS resource and / or identification information of a terminal that configures the SRS resource.

[0098] Optionally, when the first network device is a first base station, the second network device is a location management function network element and / or a second base station;

[0099] When the first network device is a location management function network element, the second network device is a second base station.

[0100] In a fourth aspect, an embodiment of the present application further provides a second network device, including a memory, a transceiver, and a processor:

[0101] A memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations:

[0102] Receiving a first message sent by a first network device, where the first message includes valid time information of an SRS resource;

[0103] The valid time of the SRS resource is updated according to the first message.

[0104] Optionally, the effective time information of the SRS resource includes one or more of the following:

[0105] The effective time length of the SRS resource;

[0106] The expiration time of the validity period of the SRS resource;

[0107] The first indication information is used to indicate that the effective time of the SRS resource needs to be updated.

[0108] Optionally, the operation further includes:

[0109] Sending a second message to the first network device;

[0110] The second message includes one or more of the following:

[0111] second indication information, where the second indication information is used to indicate that the effective time of the SRS resource is successfully updated;

[0112] third indication information, where the third indication information is used to indicate that the effective time of the SRS resource fails to be updated;

[0113] A failed cell list, wherein the failed cell list includes identification information of cells that failed to update the effective time of the SRS resource.

[0114] Optionally, when the second network device is a location management function network element, the second message further includes one or more of the following:

[0115] Fourth indication information, where the fourth indication information is used to instruct the first network device to page the terminal configured with the SRS resource to enter a connected state;

[0116] The valid area of ​​the SRS resource after update.

[0117] Optionally, the first message further includes identification information of the SRS resource and / or identification information of a terminal that configures the SRS resource.

[0118] Optionally, when the second network device is a second base station, the first network device is a location management function network element and / or a first base station;

[0119] In the case where the second network device is a location management function network element, the first network device is a first base station.

[0120] In a fifth aspect, an embodiment of the present application further provides an SRS resource validity maintenance device, which is applied to a first network device, including:

[0121] The first sending unit is used to send a first message to the second network device, where the first message includes valid time information of the SRS resource.

[0122] Optionally, when the first network device is a first base station and the first network device meets a first condition, the first network device sends the first message to the second network device;

[0123] The first condition includes one or more of the following:

[0124] Configure the validity period of the SRS resource;

[0125] Configuring the SRS resource for the terminal;

[0126] A timing advance TA is configured for the terminal that configures the SRS resource.

[0127] Optionally, when the first network device is a location management function network element and the first network device meets the second condition, the first network device sends the first message to the second network device;

[0128] The second condition includes one or more of the following:

[0129] Receiving the effective time information of the SRS resource;

[0130] Configure the validity period of the SRS resource.

[0131] Optionally, the effective time information of the SRS resource includes one or more of the following:

[0132] The effective time length of the SRS resource;

[0133] The expiration time of the validity period of the SRS resource;

[0134] The first indication information is used to indicate that the effective time of the SRS resource needs to be updated.

[0135] Optionally, the device further comprises:

[0136] A first receiving unit, configured to receive a second message sent by the second network device;

[0137] The second message includes one or more of the following:

[0138] second indication information, where the second indication information is used to indicate that the effective time of the SRS resource is successfully updated;

[0139] third indication information, where the third indication information is used to indicate that the effective time of the SRS resource fails to be updated;

[0140] A failed cell list, wherein the failed cell list includes identification information of cells that failed to update the effective time of the SRS resource.

[0141] Optionally, when the second network device is a location management function network element, the second message further includes one or more of the following:

[0142] Fourth indication information, where the fourth indication information is used to instruct the first network device to page the terminal configured with the SRS resource to enter a connected state;

[0143] The valid area of ​​the SRS resource after update.

[0144] Optionally, when the first network device is a first base station, the apparatus further includes one or more of the following:

[0145] A paging unit, used for paging the terminal configured with the SRS resource to enter a connected state;

[0146] An updating unit, configured to update a valid area of ​​the SRS resource;

[0147] a configuration unit, configured to reconfigure SRS resources for the terminal that configures the SRS resources;

[0148] The second sending unit is used to send the updated valid area of ​​the SRS resource to the terminal and / or the second network device that configures the SRS resource.

[0149] Optionally, when the first network device is a location management function network element, the apparatus further includes one or more of the following:

[0150] A third sending unit, configured to send fourth indication information to the first base station, where the fourth indication information is used to instruct the first base station to page the terminal configured with the SRS resource to enter a connected state;

[0151] An updating unit, configured to update a valid area of ​​the SRS resource;

[0152] A fourth sending unit, configured to send the updated valid area of ​​the SRS resource to the first base station;

[0153] A configuration unit is used to reconfigure the SRS resources for the terminal that configures the SRS resources.

[0154] Optionally, the first message further includes identification information of the SRS resource and / or identification information of a terminal that configures the SRS resource.

[0155] Optionally, when the first network device is a first base station, the second network device is a location management function network element and / or a second base station;

[0156] When the first network device is a location management function network element, the second network device is a second base station.

[0157] In a sixth aspect, an embodiment of the present application further provides an SRS resource validity maintenance device, which is applied to a second network device, including:

[0158] A second receiving unit, configured to receive a first message sent by a first network device, wherein the first message includes valid time information of an SRS resource;

[0159] A determining unit is used to update the effective time of the SRS resource according to the first message.

[0160] Optionally, the effective time information of the SRS resource includes one or more of the following:

[0161] The effective time length of the SRS resource;

[0162] The expiration time of the validity period of the SRS resource;

[0163] The first indication information is used to indicate that the effective time of the SRS resource needs to be updated.

[0164] Optionally, the device further comprises:

[0165] A fifth sending unit, configured to send a second message to the first network device;

[0166] The second message includes one or more of the following:

[0167] second indication information, where the second indication information is used to indicate that the effective time of the SRS resource is successfully updated;

[0168] third indication information, where the third indication information is used to indicate that the effective time of the SRS resource fails to be updated;

[0169] A failed cell list, wherein the failed cell list includes identification information of cells that failed to update the effective time of the SRS resource.

[0170] Optionally, when the second network device is a location management function network element, the second message further includes one or more of the following:

[0171] Fourth indication information, where the fourth indication information is used to instruct the first network device to page the terminal configured with the SRS resource to enter a connected state;

[0172] The valid area of ​​the SRS resource after update.

[0173] Optionally, the first message further includes identification information of the SRS resource and / or identification information of a terminal that configures the SRS resource.

[0174] Optionally, when the second network device is a second base station, the first network device is a location management function network element and / or a first base station;

[0175] In the case where the second network device is a location management function network element, the first network device is a first base station.

[0176] In the seventh aspect, an embodiment of the present application also provides a computer-readable storage medium, which stores a computer program, and the computer program is used to enable a computer to execute the SRS resource validity maintenance method described in the first aspect as described above, or execute the SRS resource validity maintenance method described in the second aspect as described above.

[0177] In the eighth aspect, an embodiment of the present application also provides a non-transitory readable storage medium, which stores a computer program, and the computer program is used to enable a processor to execute the SRS resource validity maintenance method described in the first aspect as described above, or execute the SRS resource validity maintenance method described in the second aspect as described above.

[0178] In the ninth aspect, an embodiment of the present application further provides a communication device, in which a computer program is stored, and the computer program is used to enable the communication device to execute the SRS resource validity maintenance method described in the first aspect as described above, or to execute the SRS resource validity maintenance method described in the second aspect as described above.

[0179] In the tenth aspect, an embodiment of the present application also provides a processor-readable storage medium, wherein the processor-readable storage medium stores a computer program, and the computer program is used to enable the processor to execute the SRS resource validity maintenance method described in the first aspect as described above, or execute the SRS resource validity maintenance method described in the second aspect as described above.

[0180] In the eleventh aspect, an embodiment of the present application further provides a chip product, in which a computer program is stored, and the computer program is used to enable the chip product to execute the SRS resource validity maintenance method described in the first aspect as described above, or to execute the SRS resource validity maintenance method described in the second aspect as described above.

[0181] The SRS resource validity maintenance method, device, apparatus and storage medium provided in the embodiments of the present application send a first message to a second network device through a first network device, wherein the first message includes valid time information of the SRS resource. After receiving the first message, the second network device can update the valid time of the SRS resource according to the first message, thereby ensuring that each network device has a consistent understanding of the validity of the SRS resource and avoiding problems such as signal interference and positioning failure. BRIEF DESCRIPTION OF THE DRAWINGS

[0182] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the related technologies, the following is a brief introduction to the drawings required for use in the embodiments or the related technical descriptions. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0183] Figure 1 One of the flow charts of the SRS resource validity maintenance method provided in the embodiment of the present application;

[0184] Figure 2 The second flowchart of the SRS resource validity maintenance method provided in the embodiment of the present application;

[0185] Figure 3 A schematic diagram of a positioning process provided in an embodiment of the present application;

[0186] Figure 4 A schematic diagram of the structure of a first network device provided in an embodiment of the present application;

[0187] Figure 5 A schematic diagram of the structure of a second network device provided in an embodiment of the present application;

[0188] Figure 6 One of the structural schematic diagrams of the SRS resource validity maintenance device provided in the embodiment of the present application;

[0189] Figure 7 This is the second structural diagram of the SRS resource validity maintenance device provided in the embodiment of the present application. DETAILED DESCRIPTION

[0190] In the embodiments of the present application, the term "and / or" describes the association relationship of the associated objects, indicating that three relationships may exist. For example, A and / or B may represent: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the associated objects before and after are in an "or" relationship.

[0191] In the embodiments of the present application, the term "plurality" refers to two or more than two, and other quantifiers are similar.

[0192] "Determine B based on A" in the embodiments of the present application means that the factor A should be considered when determining B. It is not limited to "B can be determined based on A alone", but should also include: "Determine B based on A and C", "Determine B based on A, C and E", "Determine C based on A, and further determine B based on C", etc. In addition, it can also include taking A as a condition for determining B, for example, "When A meets the first condition, use the first method to determine B"; for another example, "When A meets the second condition, determine B", etc.; for another example, "When A meets the third condition, determine B based on the first parameter", etc. Of course, it can also be a condition that takes A as a factor for determining B, for example, "When A meets the first condition, use the first method to determine C, and further determine B based on C", etc.

[0193] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0194] In order to better understand the technical solutions provided by the embodiments of the present application, a brief introduction to the related technologies of the embodiments of the present application is first given.

[0195] The existing uplink positioning is completed based on the measurement of SRS signals, which can be divided into the following three steps: ① The network configures the SRS signal for the UE; ② The UE sends the SRS signal; ③ The network measures the SRS signal and calculates the final position based on the measured value.

[0196] For a non-connected UE, how to send the SRS configuration to the UE is an important topic for discussion. The relevant technology is to send the SRS configuration to the UE through a Radio Resource Control Release (RRCRelease) message when the UE is released into an inactive state.

[0197] The SRS configuration becomes invalid in the following situations: ① cell reselection occurs; ② the change of the reference signal receiving power (RSRP) detected by the UE exceeds a certain threshold; ③ the TA timer times out. These conditions limit the effectiveness of the SRS and require the UE to frequently obtain the SRS configuration.

[0198] To solve this problem, a valid area mechanism is proposed, whereby the SRS configuration configured for the UE is valid within a larger range. For example, the range may be a cell list including multiple cells, that is, the UE can use the SRS configuration within these cell ranges.

[0199] For connected terminals, the validity of the TA is determined by the time alignment timer (timeAlignmentTimer). If the timeAlignmentTimer times out, the TA is considered invalid. The timer is valid in the cell. When configuring an area-valid SRS, an area-specific timing advance timer (area specific Timing AdvanceTimer, area specific TA Timer) can be configured, that is, the timer can be valid in the valid area, and the timer will not be stopped because the terminal performs a handover / reselection.

[0200] Figure 1 One of the flow charts of the SRS resource validity maintenance method provided in the embodiment of the present application is as follows: Figure 1 As shown, the method is applied to the first network device and may include the following steps:

[0201] Step 100: Send a first message to a second network device, where the first message includes valid time information of an SRS resource.

[0202] Specifically, the first network device and the second network device may be access network devices (eg, base stations) or core network devices (eg, location management function network elements) that participate in the effective area mechanism of SRS resources.

[0203] When determining the effective time information of the SRS resource, the first network device may send a first message to the second network device, where the first message includes the effective time information of the SRS resource, and the effective time information of the SRS resource is information related to the effective time of the SRS resource.

[0204] In some implementations, when the first network device is a first base station, the second network device may be a location management function network element and / or a second base station. That is, when the first network device is a first base station, the first network device may send the first message to the location management function network element; or, the first network device may send the first message to the second base station; or, the first network device may send the first message to the location management function network element and the second base station.

[0205] Optionally, the first message sent by the first base station to the second base station may be an Xn message, or other existing or newly defined message types for interaction between two base stations; the first message sent by the first base station to the location management function network element may be a New Radio Positioning Protocol A (NRPPa) message, or other existing or newly defined message types for interaction between base stations and location management function network elements. The embodiment of the present application does not limit the message type of the first message.

[0206] It should be noted that the first base station and the second base station are both base stations in the effective area of ​​​​the SRS resources, wherein the first base station is the base station for configuring the SRS resources for the terminal, as the source base station; the second base station is any base station other than the first base station in the effective area of ​​​​the SRS resources, as the target base station; the location management function network element can be the LMF in the 5G system, or other existing or future communication systems. The network element that implements functions similar to LMF; After the SRS resources are configured to the terminal, they can be used for the positioning process of the terminal in the connected state, inactive state or idle state. These concepts are consistent in each embodiment of the present application and will not be repeated in the following text.

[0207] In some implementations, when the first network device is a location management function network element, the second network device may be a second base station. That is, when the first network device is a location management function network element, the first network device may send the first message to the second base station.

[0208] Optionally, the first message sent by the location management function network element to the second base station may be an NRPPa message or other existing or newly defined message type for interaction between a base station and a location management function network element. The embodiment of the present application does not limit the message type of the first message.

[0209] Optionally, the first message further includes identification information of the SRS resource and / or identification information of the terminal configuring the SRS resource.

[0210] Specifically, the first message may also include identification information of the SRS resource, such as an index of the SRS resource (the index is a global index number within the valid area, that is, within the valid area, an index corresponds only to a unique SRS resource); or, the first message may also include identification information of the terminal that configures the SRS resource, such as a terminal identifier (User Equipment Identifier, UE ID); or, the first message may also include identification information of the SRS resource and identification information of the terminal that configures the SRS resource. Thus, the second network device may determine the SRS resource corresponding to the effective time information of the SRS resource in the first message, and determine to which terminal the SRS resource is configured.

[0211] After receiving the first message sent by the first network device, the second network device can determine and update the valid time of the SRS resource according to the valid information of the SRS resource in the first message, so that the network devices participating in the valid area mechanism of the SRS resource have a consistent understanding of the validity.

[0212] The SRS resource validity maintenance method provided in the embodiment of the present application sends a first message to a second network device through a first network device, and the first message includes valid time information of the SRS resource. After the second network device receives the first message, it can update the valid time of the SRS resource according to the first message, thereby ensuring that each network device has a consistent understanding of the validity of the SRS resource, avoiding problems such as signal interference and positioning failure.

[0213] Optionally, when the first network device is a first base station and the first network device meets a first condition, the first network device sends a first message to the second network device.

[0214] The first condition may include one or more of the following:

[0215] Configure the effective time of SRS resources;

[0216] Configure SRS resources for the terminal;

[0217] A timing advance TA is configured for the terminal configured with SRS resources.

[0218] Specifically, the first base station may perform one or more of the operations of configuring the effective time of the SRS resources, configuring the SRS resources for the terminal, and configuring the TA for the terminal configured with the SRS resources.

[0219] When the first network device is a first base station and the first network device performs one or more of the operations of configuring a valid time for an SRS resource, configuring an SRS resource for a terminal, and configuring a TA for a terminal that configures the SRS resource, the first network device can determine the valid time of the SRS resource and send the valid time information of the SRS resource to the second network device via a first message.

[0220] In some implementations, configuring the effective time of the SRS resources refers to the first network device determining the effective time of the SRS resources (for example, the effective deadline or the length of the timer). Specifically, it can be that the location management function network element determines the SRS resources configured for the terminal and sends the SRS resources to the first base station. After receiving the SRS resources, the first base station determines the effective time of the SRS resources configured for the terminal.

[0221] If the first condition is to configure the effective time of the SRS resources, when the first network device satisfies the first condition, the first network device sends the first message to the second network device. After the first base station determines the effective time of the SRS resources configured for the terminal, it sends the first message to the second network device to inform the second network device of the determined effective time.

[0222] For example, the first base station configures a valid time for the SRS resource, such as a timer, which may be an area specific TA timer or other newly defined timer. The first base station may send a first message to the second network device to notify the second network device of the valid time of the SRS resource.

[0223] In some implementation modes, configuring SRS resources for the terminal refers to that the first network device configures the SRS resources for the terminal, and specifically, the first network device sends the SRS resources to the terminal via an RRCRelease message.

[0224] If the first condition is to configure SRS resources for the terminal, when the first network device meets the first condition, the first network device may send a first message to the second network device when the first base station sends SRS resources to the terminal (the time may be earlier than, equal to or later than, depending on the network implementation), and send the first message to the second network device to inform the second network device of the determined effective time.

[0225] For example, the first base station configures SRS resources for the terminal, indicating that the timer of the SRS resources of the terminal is started. The first base station can send a first message to the second network device to notify the second network device of the valid time of the SRS resources.

[0226] In some implementations, configuring the TA of the terminal for configuring SRS resources means that the first network device configures the TA to the terminal, and specifically, the first network device sends the TA to the terminal in a random process or through a Media Access Control Control Element (MAC CE).

[0227] If the first condition is that the terminal that configures the SRS resources configures the timing advance TA, and the first network device meets the first condition, the first network device may send a first message to the second network device when the first base station sends TA to the terminal (the time may be earlier than, equal to or later than, depending on the network implementation), and send the first message to the second network device to inform the second network device of the determined effective time.

[0228] For example, the first base station configures a TA for a terminal that has configured SRS resources, indicating that the timer of the SRS resources of the terminal is restarted. The first base station can send a first message to the second network device to notify the second network device of the valid time of the SRS resources.

[0229] Optionally, when the first network device is a location management function network element and the first network device meets the second condition, the first network device sends a first message to the second network device.

[0230] The second condition may include one or more of the following:

[0231] Receive the effective time information of SRS resources;

[0232] Configure the validity period of SRS resources.

[0233] Specifically, the location management function network element may receive the effective time information of the SRS resource and / or configure the effective time of the SRS resource.

[0234] When the first network device is a location management function network element and the first network device receives the valid time information of the SRS resource and / or configures the valid time of the SRS resource, the first network device can determine the valid time of the SRS resource and send the valid time information of the SRS resource to the second network device via a first message.

[0235] In some embodiments, the received valid time information of the SRS resource means that other network devices determine the valid time of the SRS resource (such as the valid deadline or timer length). For example, the first base station determines the valid time of the SRS resource. Specifically, the first base station determines the valid time of the SRS resource configured for the terminal and sends the valid time information of the SRS resource to the location management function network element.

[0236] If the second condition is receiving the valid time information of the SRS resource, when the first network device satisfies the second condition, the first network device may send a first message to the second network device. After the location management function network element receives the valid time information of the SRS resource, it may determine the valid time of the SRS resource and send the first message to the second network device to inform the second network device of the determined valid time.

[0237] For example, the location management function network element receives the effective time information of the SRS resource sent by the first base station, determines the effective time of the SRS resource based on the received effective time information of the SRS resource, and sends a first message to the second network device to notify the second network device of the effective time of the SRS resource.

[0238] In some implementations, configuring the effective time of SRS resources refers to the first network device determining the effective time of the SRS resources (e.g., the effective deadline or timer length). Specifically, the location management function network element configures the effective time for each SRS resource, or the location management function network element determines the SRS resources configured for the terminal and determines the effective time of the SRS resources configured for the terminal.

[0239] If the second condition is to configure the effective time of the SRS resources, when the first network device meets the second condition, the first network device sends the first message to the second network device. After the location management function network element determines the effective time of the SRS resources configured for the terminal, it sends the first message to the second network device to inform the second network device of the determined effective time.

[0240] For example, the location management function network element configures a valid time for the SRS resource, such as a timer, which can be an area specific TA timer or other newly defined timer. The location management function network element can send a first message to the second network device to notify the second network device of the valid time of the SRS resource.

[0241] Optionally, the effective time information of the SRS resource may include one or more of the following:

[0242] (1) The effective time length of the SRS resource is used to indicate the duration length of the SRS resource. For example, it may be the timer length of the SRS resource, and the timer may be TATimer. It should be noted that the effective time length of the SRS resource may be the effective time length configured for the SRS resource that has not been configured with an effective time, or the effective time length of the SRS resource may be the effective time length configured for the SRS resource that has been configured with an effective time, and is used to update the effective time of the SRS resource.

[0243] (2) The expiration time of the SRS resource is used to indicate the time when the SRS resource becomes invalid. For example, it can be the Coordinated Universal Time (UTC) time. It should be noted that the expiration time of the SRS resource can be the effective time length configured for the SRS resource that has no effective time configured, or the expiration time of the SRS resource can be configured for the SRS resource that has already been configured with an effective time, which is used to update the effective time of the SRS resource.

[0244] (3) First indication information: The first indication information is used to indicate that the effective time of the SRS resource needs to be updated. For example, one bit may be used for indication. If the bit appears, it indicates that the effective time information of the SRS needs to be updated.

[0245] In some embodiments, the SRS resource is not configured with a valid time. After the valid time of the SRS resource is configured, the valid time information of the SRS resource may include one or more of the valid time length of the SRS resource, the end time of the valid time of the SRS resource, and other time information used to indicate the valid time of the SRS resource.

[0246] In some embodiments, the SRS resource has been configured with a validity period. If the validity period of the SRS resource changes, the validity period information of the SRS resource may include time information indicating the updated validity period of the SRS resource (for example, the length of the validity period of the updated SRS resource and the end time of the validity period of the updated SRS resource, etc.) and / or first indication information indicating that the validity period of the SRS resource needs to be updated.

[0247] Optionally, the method further comprises:

[0248] A second message sent by a second network device is received.

[0249] Specifically, after the first network device sends the first message to the second network device, the second network device can update the effective time of the SRS resource according to the first message. However, since the second network device may not be able to successfully update the effective time of the SRS resource according to the first message, the second network device can send a second message to the first network device to indicate whether the effective time of the SRS resource is updated successfully.

[0250] The second message may include one or more of the following:

[0251] (1) Second indication information: The second indication information is used to indicate that the effective time of the SRS resource is updated successfully.

[0252] Specifically, when the second network device successfully updates the effective time of the SRS resource, the second message sent by the second network device may include second indication information, which is used to indicate that the effective time of the SRS resource is successfully updated.

[0253] (2) Third indication information: The third indication information is used to indicate that the effective time of the SRS resource fails to be updated.

[0254] Specifically, when the second network device fails to successfully update the effective time of the SRS resource, for example, the SRS resource has been occupied within the effective time of the SRS resource, the second message sent by the second network device may include third indication information for indicating that the effective time update of the SRS resource has failed.

[0255] (3) A failed cell list, which includes identification information of cells that failed to update the effective time of SRS resources.

[0256] Specifically, the second network device can obtain the results of updating the effective time of SRS resources in multiple cells, and based on the results of the multiple cell updates, obtain a list of cells that failed to update the effective time of SRS resources. The second message sent by the second network device may include a failed cell list, and the failed cell list includes identification information of multiple cells that failed to update the effective time of SRS resources.

[0257] For example, when the second network device is a second base station, the second network device can obtain the results of updating the effective time of the SRS resource for multiple cells under the second network device. If there is at least one cell that fails to update the effective time of the SRS resource, the second network device can send a list of cells that failed to update the effective time of the SRS resource to the first network device through a second message.

[0258] For another example, when the second network device is a location management function network element, the second network device can obtain the results of updating the effective time of SRS resources in multiple cells under multiple second base stations. If there is at least one cell that fails to update the effective time of SRS resources, the second network device can send a list of cells that failed to update the effective time of SRS resources to the first network device through a second message.

[0259] Optionally, when the second network device is a location management function network element, the second message further includes one or more of the following:

[0260] (1) Fourth indication information: The fourth indication information is used to instruct the first network device to page the terminal configured with SRS resources to enter a connected state.

[0261] Specifically, the location management function network element may instruct each base station to page the terminal configured with the SRS resource to enter the connected state. In the case where the second network device is a location management function network element, the second message may also include fourth indication information, instructing the first network device to page the terminal configured with the SRS resource to enter the connected state.

[0262] (2) The valid area of ​​the updated SRS resource.

[0263] Specifically, the location management function network element may obtain the results of updating the effective time of the SRS resource for multiple cells, and determine the effective area of ​​the updated SRS resource according to the results of the multiple cell updates, that is, the cell that successfully updates the effective time of the SRS resource is used as the effective area of ​​the updated SRS resource. In the case where the second network device is a location management function network element, the second message may also include the effective area of ​​the updated SRS resource.

[0264] Optionally, when the first network device is a first base station, the method further includes one or more of the following:

[0265] (1) The terminal configured with SRS resources is paged to enter the connected state.

[0266] Specifically, when the first network device is a first base station and there is a cell in a valid area of ​​the original SRS resource that fails to update the valid time of the SRS resource, the first network device may page the terminal configured with the SRS resource to enter a connected state.

[0267] In some embodiments, when the second message includes one or more of the third indication information, a failed cell list, the fourth indication information, and a valid area of ​​the updated SRS resources, the first network device can page the terminal configured with SRS resources to enter a connected state, thereby reconfiguring the SRS resources for the terminal.

[0268] (2) Update the valid area of ​​SRS resources.

[0269] Specifically, when the first network device is a first base station and there is a cell in the valid area of ​​the original SRS resource that fails to update the valid time of the SRS resource, the first network device may update the valid area of ​​the SRS resource.

[0270] In some implementations, when the second message includes a failed cell list, the first network device may determine and update a valid area of ​​the SRS resource according to the failed cell list.

[0271] In some implementations, when the second message includes the updated valid area of ​​the SRS resource, the first network device may directly update the valid area of ​​the SRS resource according to the updated valid area of ​​the SRS resource included in the second message.

[0272] (3) Reconfigure SRS resources for the terminal that has configured SRS resources.

[0273] Specifically, when the first network device is a first base station and there is a cell in a valid area of ​​the original SRS resource that fails to update the valid time of the SRS resource, the first network device may reconfigure the SRS resource for the terminal that configures the SRS resource.

[0274] In some implementations, when the second message includes one or more of the third indication information, a failed cell list, the fourth indication information, and a valid area of ​​an updated SRS resource, the first network device may reconfigure the SRS resource for the terminal that has already configured the SRS resource.

[0275] (4) Sending the updated valid area of ​​the SRS resource to the terminal and / or the second network device that configures the SRS resource.

[0276] Specifically, when the first network device is the first base station and there is a cell failure to update the effective time of the SRS resource in the effective area of ​​the original SRS resource, the first network device can determine the effective area of ​​the updated SRS resource and send the updated effective area of ​​the SRS resource to the terminal and / or the second network device that configures the SRS resource.

[0277] In some implementations, when the second message includes a failed cell list, the first network device may determine and update the valid area of ​​the SRS resources based on the failed cell list, and send the updated valid area of ​​the SRS resources to the terminal and / or the second network device that configures the SRS resources.

[0278] Optionally, when the first network device is a location management function network element, the method further includes one or more of the following:

[0279] (1) Sending fourth indication information to the first base station, where the fourth indication information is used to instruct the first base station to page the terminal configured with SRS resources to enter a connected state.

[0280] Specifically, when the first network device is a location management function network element and there is a cell in the valid area of ​​the original SRS resource that fails to update the effective time of the SRS resource, the first network device can send a fourth indication message to the first base station to instruct the first base station to page the terminal configured with the SRS resource to enter a connected state. The first base station can page the terminal configured with the SRS resource to enter a connected state according to the fourth indication message, thereby reconfiguring the SRS resources for the terminal.

[0281] (2) Update the valid area of ​​SRS resources.

[0282] Specifically, when the first network device is a location management function network element and there is a cell in the valid area of ​​the original SRS resource that fails to update the valid time of the SRS resource, the first network device may update the valid area of ​​the SRS resource.

[0283] In some implementations, when the second message includes a failed cell list, the first network device may determine and update a valid area of ​​the SRS resource according to the failed cell list.

[0284] (3) Sending the updated valid area of ​​the SRS resource to the first base station.

[0285] Specifically, when the first network device is a location management function network element and there is a cell in the valid area of ​​the original SRS resource that fails to update the valid time of the SRS resource, the first network device can determine the valid area of ​​the SRS resource and send the updated valid area of ​​the SRS resource to the first base station.

[0286] In some implementations, when the second message includes a failed cell list, the first network device may determine and update a valid area of ​​the SRS resource according to the failed cell list, and send the updated valid area of ​​the SRS resource to the first base station.

[0287] (4) Reconfigure SRS resources for the terminal that has configured SRS resources.

[0288] Specifically, when the first network device is a location management function network element and there is a cell in the valid area of ​​the original SRS resource that fails to update the valid time of the SRS resource, the first network device can reconfigure the SRS resource for the terminal that configures the SRS resource.

[0289] In some implementations, when the second message includes the third indication information and / or the failed cell list, the first network device may reconfigure the SRS resource for the terminal that has configured the SRS resource.

[0290] Figure 2 The second flow chart of the SRS resource validity maintenance method provided in the embodiment of the present application is as follows: Figure 2 As shown, the method is applied to the second network device and may include the following steps:

[0291] Step 200: Receive a first message sent by a first network device, where the first message includes effective time information of an SRS resource.

[0292] Step 201: Update the effective time of SRS resources according to the first message.

[0293] Specifically, the first network device and the second network device may be access network devices (eg, base stations) or core network devices (eg, location management function network elements) that participate in the effective area mechanism of SRS resources.

[0294] When determining the effective time information of the SRS resource, the first network device may send a first message to the second network device, where the first message includes the effective time information of the SRS resource, and the effective time information of the SRS resource is information related to the effective time of the SRS resource.

[0295] In some implementations, when the second network device is a second base station, the first network device is a location management function network element and / or a first base station. That is, when the second network device is a second base station, the second network device may receive a first message sent by the location management function network element; or, the second network device may receive a first message sent by the first base station; or, the second network device may receive a first message sent by the location management function network element and the first base station.

[0296] Optionally, the first message sent by the first base station and received by the second base station may be an Xn message, or other existing or newly defined message types for interaction between two base stations; the first message sent by the location management function network element and received by the second base station may be an NRPPa message, or other existing or newly defined message types for interaction between base stations and location management function network elements. The embodiment of the present application does not limit the message type of the first message.

[0297] It should be noted that the first base station and the second base station are both base stations in the effective area of ​​​​the SRS resources, wherein the first base station is the base station for configuring the SRS resources for the terminal, as the source base station; the second base station is any base station other than the first base station in the effective area of ​​​​the SRS resources, as the target base station; the location management function network element can be the LMF in the 5G system, or other existing or future communication systems. The network element that implements functions similar to LMF; After the SRS resources are configured to the terminal, they can be used for the positioning process of the terminal in the connected state, inactive state or idle state. These concepts are consistent in each embodiment of the present application and will not be repeated in the following text.

[0298] In some implementations, when the second network device is a location management function network element, the first network device is a first base station. That is, when the second network device is a location management function network element, the second network device can receive the first message sent by the first base station.

[0299] Optionally, the first message sent by the first base station and received by the location management function network element may be an NRPPa message or other existing or newly defined message types for interaction between the base station and the location management function network element. The embodiment of the present application does not limit the message type of the first message.

[0300] Optionally, the first message further includes identification information of the SRS resource and / or identification information of the terminal configuring the SRS resource.

[0301] Specifically, the first message may also include identification information of the SRS resource, such as the index of the SRS resource (the index is a global index number within the valid area, that is, within the valid area, one index corresponds only to a unique SRS resource); or, the first message may also include identification information of the terminal that configures the SRS resource, such as UE ID; or, the first message may also include identification information of the SRS resource and identification information of the terminal that configures the SRS resource. Thus, the second network device may determine the SRS resource corresponding to the effective time information of the SRS resource in the first message, and determine to which terminal the SRS resource is configured.

[0302] After receiving the first message sent by the first network device, the second network device can determine and update the valid time of the SRS resource according to the valid information of the SRS resource in the first message, so that the network devices participating in the valid area mechanism of the SRS resource have a consistent understanding of the validity.

[0303] The SRS resource validity maintenance method provided in the embodiment of the present application sends a first message to a second network device through a first network device, and the first message includes valid time information of the SRS resource. After the second network device receives the first message, it can update the valid time of the SRS resource according to the first message, thereby ensuring that each network device has a consistent understanding of the validity of the SRS resource, avoiding problems such as signal interference and positioning failure.

[0304] Optionally, the effective time information of the SRS resource may include one or more of the following:

[0305] (1) The effective time length of the SRS resource is used to indicate the duration length of the SRS resource. For example, it may be the timer length of the SRS resource, and the timer may be the TA Timer. It should be noted that the effective time length of the SRS resource may be the effective time length configured for the SRS resource that has not been configured with an effective time, or the effective time length of the SRS resource may be the effective time length configured for the SRS resource that has been configured with an effective time, and is used to update the effective time of the SRS resource.

[0306] (2) The expiration time of the SRS resource is used to indicate the time when the SRS resource becomes invalid. For example, it can be the UTC time. It should be noted that the expiration time of the SRS resource can be the effective time length configured for the SRS resource without a configured effective time, or the expiration time of the SRS resource can be configured for the SRS resource with a configured effective time, which is used to update the effective time of the SRS resource.

[0307] (3) First indication information: The first indication information is used to indicate that the effective time of the SRS resource needs to be updated. For example, it can be indicated by 1 bit. If this bit appears, it means that the effective time information of the SRS needs to be updated.

[0308] In some embodiments, the SRS resource is not configured with a valid time. After the valid time of the SRS resource is configured, the valid time information of the SRS resource may include one or more of the valid time length of the SRS resource, the end time of the valid time of the SRS resource, and other time information used to indicate the valid time of the SRS resource.

[0309] In some embodiments, the SRS resource has been configured with a validity period. If the validity period of the SRS resource changes, the validity period information of the SRS resource may include time information indicating the updated validity period of the SRS resource (for example, the length of the validity period of the updated SRS resource and the end time of the validity period of the updated SRS resource, etc.) and / or first indication information indicating that the validity period of the SRS resource needs to be updated.

[0310] Optionally, the method further comprises:

[0311] A second message is sent to the first network device.

[0312] Specifically, after the second network device receives the first message sent by the first network device, the second network device can update the effective time of the SRS resource according to the first message, but since the second network device may not be able to successfully update the effective time of the SRS resource according to the first message, the second network device can send a second message to the first network device to indicate whether the effective time of the SRS resource is updated successfully.

[0313] (1) Second indication information: The second indication information is used to indicate that the effective time of the SRS resource is updated successfully.

[0314] Specifically, when the second network device successfully updates the effective time of the SRS resource, the second message sent by the second network device may include second indication information, which is used to indicate that the effective time of the SRS resource is successfully updated.

[0315] (2) Third indication information: The third indication information is used to indicate that the effective time of the SRS resource fails to be updated.

[0316] Specifically, when the second network device fails to successfully update the effective time of the SRS resource, for example, the SRS resource has been occupied within the effective time of the SRS resource, the second message sent by the second network device may include third indication information for indicating that the effective time update of the SRS resource has failed.

[0317] (3) A failed cell list, which includes identification information of cells that failed to update the effective time of SRS resources.

[0318] Specifically, the second network device can obtain the results of updating the effective time of SRS resources in multiple cells, and based on the results of the multiple cell updates, obtain a list of cells that failed to update the effective time of SRS resources. The second message sent by the second network device may include a failed cell list, and the failed cell list includes identification information of multiple cells that failed to update the effective time of SRS resources.

[0319] For example, when the second network device is a second base station, the second network device can obtain the results of updating the effective time of the SRS resource for multiple cells under the second network device. If there is at least one cell that fails to update the effective time of the SRS resource, the second network device can send a list of cells that failed to update the effective time of the SRS resource to the first network device through a second message.

[0320] For another example, when the second network device is a location management function network element, the second network device can obtain the results of updating the effective time of SRS resources in multiple cells under multiple second base stations. If there is at least one cell that fails to update the effective time of SRS resources, the second network device can send a list of cells that failed to update the effective time of SRS resources to the first network device through a second message.

[0321] Optionally, when the second network device is a location management function network element, the second message further includes one or more of the following:

[0322] (1) Fourth indication information: The fourth indication information is used to instruct the first network device to page the terminal configured with SRS resources to enter a connected state.

[0323] Specifically, the location management function network element may instruct each base station to page the terminal configured with the SRS resource to enter the connected state. In the case where the second network device is a location management function network element, the second message may also include fourth indication information, instructing the first network device to page the terminal configured with the SRS resource to enter the connected state.

[0324] (2) The valid area of ​​the updated SRS resource.

[0325] Specifically, the location management function network element may obtain the results of updating the effective time of the SRS resource for multiple cells, and determine the effective area of ​​the updated SRS resource according to the results of the multiple cell updates, that is, the cell that successfully updates the effective time of the SRS resource is used as the effective area of ​​the updated SRS resource. In the case where the second network device is a location management function network element, the second message may also include the effective area of ​​the updated SRS resource.

[0326] The methods provided in the embodiments of the present application are based on the same application concept, so the implementation of each method can refer to each other, and the repeated parts will not be repeated.

[0327] The methods provided in the above embodiments of the present application are illustrated below through examples of specific application scenarios.

[0328] Example 1: Overall process

[0329] Figure 3 A schematic diagram of the positioning process provided in the embodiment of the present application, such as Figure 3 As shown, the process includes the following steps:

[0330] 0. The Radio Access Network (RAN) node and the LMF coordinate SRS resources through NRPPa messages to form an SRS resource pool, including a group of regionally valid SRS resources and corresponding valid areas. The valid area is a cell list.

[0331] 1. The terminal sends an RRC resume request (RRCResumeRequest) message to the source base station, which carries an indication of the valid SRS in the requested area. The source base station refers to the base station where the serving cell of the terminal is located.

[0332] 2. The source base station requests an area-valid SRS from the LMF through an NRPPa message. If the source base station has the SRS resource pool information in step 0, the source base station can request a specific SRS from the LMF through the SRS index in the request information. If the source base station does not have the SRS resource pool information in step 0, the source base station requests the LMF to allocate an SRS.

[0333] 3. After receiving the request information sent by the source base station in step 2, LMF sends a response message to the source base station.

[0334] ① If the source base station requests a specific SRS from the LMF through the SRS index in the request information, and if the SRS resource is available, the LMF sends a response to the source base station approving the request; ② If the source base station requests a specific SRS from the LMF through the SRS index in the request information, and if the SRS resource is not available, the LMF includes the index of the allocated SRS in the response message to the source base station. ③ If the source base station requests the LMF to allocate an SRS, the LMF includes the allocated SRS and the corresponding valid area in the response message to the source base station.

[0335] The LMF also sends the configuration information of the SRS to other base stations in the effective area through the NRPPa message, where the configuration information of the SRS includes one or more of the SRS resource, SRS index, SRS effective area, and terminal identity information.

[0336] Optionally, the response message and / or the configuration information of the SRS sent by the LMF to other base stations within the effective area may also include the effective time information of the SRS, such as the effective time length or the effective deadline.

[0337] 4. If in step 3, the LMF does not provide the valid time information of the SRS, the source base station determines the valid time information of the SRS and sends the valid time information to the LMF through the NRPPa message.

[0338] 5a is option 1 and 5b is option 2.

[0339] Option 1:

[0340] 5a. If the LMF does not provide the effective time information of the SRS in step 3, then after receiving the effective time information of the SRS sent by the source base station in step 4, the LMF sends the effective time of the SRS to other base stations in the effective area through the NRPPa message. Or

[0341] Option 2:

[0342] 5b. If in step 3, the LMF does not provide the effective time information of the SRS, the source base station sends the effective time information of the SRS to other base stations in the effective area through an Xn message.

[0343] 6. If the source base station sends a TA to the terminal within the valid time of the SRS, such as a TA command in a random access response (Random Access Reponse, RAR) or a MAC CE of a TAC, the source base station sends the valid time information of the SRS to the LMF via an NRPPa message.

[0344] 7a, 8a and 9a are provided as Option 1, and 7b and 8b are provided as Option 2.

[0345] Option 1:

[0346] 7a. After receiving the effective time information of the SRS sent by the source base station in step 6, the LMF sends the effective time of the SRS to other base stations in the effective area through the NRPPa message.

[0347] 8a. Other base stations within the effective area feed back the success or failure of the SRS effective time update to the LMF via the NRPPa message. If it fails, it can carry a list of failed cells.

[0348] 9a. LMF sends updated valid area information to the source base station through NRPPa message.

[0349] Option 2:

[0350] 7b. The source base station sends the effective time information of the SRS to other base stations in the effective area through an Xn message.

[0351] 8b. Other base stations in the effective area feed back the success or failure of the SRS effective time update to the source base station through an Xn message. If it fails, the message may carry a list of failed cells.

[0352] 10. The source base station provides the terminal with an updated SRS valid area, or configures new SRS resources for the terminal, or pages the terminal to enter a connected state.

[0353] Embodiment 2: The source base station indicates the effective time information of SRS to the target base station / LMF

[0354] In the following cases, the source base station indicates the effective time information of the SRS to the target base station and / or LMF:

[0355] ① The effective time of SRS is configured by the cell that configures SRS resources for the terminal, and the base station where the cell is located is the source base station. When determining the SRS resources configured for the terminal, the source base station determines the effective time of SRS and indicates the effective time information of SRS to the target base station / LMF.

[0356] ② Before the validity period of SRS expires, the source gNB configures TA for the terminal, and the source gNB needs to indicate the validity period information of SRS to the target base station / LMF.

[0357] The effective time of the SRS determined by the source base station may be in one or more of the following forms:

[0358] ① Timer (such as area specific TA timer), effective time length or UTC time (indicating the effective expiration time of SRS, that is, after this time point, the SRS is invalid).

[0359] ② Indication information indicating the update of the effective time information of the SRS: For example, it can be indicated by 1 bit. If the target base station / LMF receives this bit, it indicates that the effective time information of the SRS needs to be updated.

[0360] The target base station refers to other base stations except the source base station within the effective area of ​​the SRS.

[0361] The way in which the source base station indicates the effective time information of the SRS to the target base station and / or the LMF includes:

[0362] ①Through NRPPa message.

[0363] Step 1: The source base station sends the effective time information of SRS to LMF through NRPPa message;

[0364] Step 2: After receiving the effective time information of the SRS, the LMF sends the effective time information of the SRS to other base stations within the effective area of ​​the SRS through the NRPPa message.

[0365] ②Through Xn interface message.

[0366] The source base station sends the effective time information of the SRS to other base stations in the effective area of ​​the SRS via an Xn interface message. Optionally, the source base station sends the effective time information of the SRS to the LMF via an NRPPa message.

[0367] In addition to the effective time information of SRS, the source base station may also indicate one or more of the following: the SRS index (the index is a global index number within the effective area, that is, within the effective area, one index corresponds only to a unique SRS resource), UE identity information (that is, to which terminal the SRS is configured).

[0368] After receiving the effective time information of the SRS, the target base station / LMF determines the updated effective time of the SRS according to the effective time information of the SRS. If the update is successful, it means that the terminal can use the SRS within the updated effective time.

[0369] Example 3: Failure Example

[0370] When the source base station sends the effective time information, other base stations in the effective area may fail to complete the configuration according to the indicated effective time. For example, the SRS of the target base station is occupied during the indicated time. Therefore, a scenario where the effective time configuration fails may occur. To solve this problem, a feedback mechanism can be added, based on the "method for the source base station to indicate the effective time information of the SRS to the target base station and / or LMF" in Example 2:

[0371] (1) If it is through NRPPa message:

[0372] Step 1: The source base station sends the effective time information of SRS to LMF through NRPPa message;

[0373] Step 2: After receiving the effective time information of the SRS, the LMF sends the effective time information of the SRS to other base stations within the effective area of ​​the SRS through the NRPPa message.

[0374] ① The source base station sends the effective time information of SRS to LMF through NRPPa message. LMF sends feedback information to the source base station and sends the effective time information of SRS to other base stations in the effective area.

[0375] When the feedback information sent by LMF to the source base station through the NRPPa message is the third feedback information, it indicates that LMF has successfully updated the effective time of SRS; when the feedback information is the fourth feedback information, it indicates that LMF has failed to update the effective time of SRS. Optionally, LMF can also indicate to the source base station a list of base stations or cells whose effective time of SRS cannot be updated, or LMF sends an updated effective area to the source base station.

[0376] ② The source base station sends the effective time information of SRS to LMF through NRPPa message. After receiving the information, LMF sends the effective time information of SRS to other base stations in the effective area of ​​SRS. After receiving the information, the target base station feeds back to LMF:

[0377] The feedback information sent by the target base station to the LMF through the NRPPa message is the fifth feedback information, indicating that the target base station successfully updates the effective time of the SRS; the feedback information is the sixth feedback information, indicating that the target base station fails to update the effective time of the SRS, and the target base station can also indicate to the LMF a list of cells whose effective time of the SRS cannot be updated. Optionally, the LMF updates the effective area or effective time according to the feedback information and sends it to the serving base station through the NRPPa message.

[0378] (2) If it is through Xn interface message:

[0379] The source base station sends the effective time information of the SRS to other base stations in the effective area through an Xn interface message. After receiving the information, the target base station feeds back to the source base station.

[0380] The feedback information sent by the target base station to the LMF through the Xn message is the first feedback information, indicating that the target base station successfully updates the effective time of the SRS; the feedback information is the second feedback information, indicating that the target base station fails to update the effective time of the SRS. Optionally, the target base station can also indicate to the source base station a list of cells whose effective time of the SRS cannot be updated.

[0381] The methods and devices provided in the various embodiments of the present application are based on the same application concept. Since the methods and devices solve problems based on similar principles, the implementation of the devices and methods can refer to each other, and the repeated parts will not be repeated.

[0382] Figure 4 A schematic diagram of the structure of a first network device provided in an embodiment of the present application, such as Figure 4 As shown, the first network device includes a memory 420, a transceiver 410 and a processor 400; wherein the processor 400 and the memory 420 may also be arranged physically separately.

[0383] The memory 420 is used to store computer programs; the transceiver 410 is used to send and receive data under the control of the processor 400.

[0384] Among them, Figure 4 In the embodiment, the bus architecture may include any number of interconnected buses and bridges, specifically linking various circuits of one or more processors represented by processor 400 and memory represented by memory 420. The bus architecture may also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and are therefore not further described in this application. The bus interface provides an interface. The transceiver 410 may be a plurality of components, namely, a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium, which may include a wireless channel, a wired channel, an optical cable, and other transmission media.

[0385] The processor 400 is responsible for managing the bus architecture and general processing, and the memory 420 can store data used by the processor 400 when performing operations.

[0386] The processor 400 may be a central processing unit (CPU), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or a complex programmable logic device (CPLD). The processor may also adopt a multi-core architecture.

[0387] The processor 400 calls the computer program stored in the memory 420 to execute any of the methods provided in the embodiments of the present application according to the obtained executable instructions, for example:

[0388] A first message is sent to the second network device, where the first message includes valid time information of the SRS resource.

[0389] Optionally, when the first network device is a first base station and the first network device meets the first condition, the first network device sends a first message to the second network device;

[0390] The first condition includes one or more of the following:

[0391] Configure the effective time of SRS resources;

[0392] Configure SRS resources for the terminal;

[0393] A timing advance TA is configured for the terminal configured with SRS resources.

[0394] Optionally, when the first network device is a location management function network element and the first network device meets the second condition, the first network device sends a first message to the second network device;

[0395] The second condition includes one or more of the following:

[0396] Receive the effective time information of SRS resources;

[0397] Configure the validity period of SRS resources.

[0398] Optionally, the effective time information of the SRS resource includes one or more of the following:

[0399] The effective time length of SRS resources;

[0400] The expiration time of the SRS resource;

[0401] The first indication information is used to indicate that the effective time of the SRS resource needs to be updated.

[0402] Optionally, the method further comprises:

[0403] receiving a second message sent by a second network device;

[0404] The second message includes one or more of the following:

[0405] Second indication information, where the second indication information is used to indicate that the effective time of the SRS resource is updated successfully;

[0406] Third indication information, where the third indication information is used to indicate that the effective time update of the SRS resource fails;

[0407] The failed cell list includes identification information of cells that failed to update the effective time of SRS resources.

[0408] Optionally, when the second network device is a location management function network element, the second message further includes one or more of the following:

[0409] Fourth indication information, where the fourth indication information is used to instruct the first network device to page the terminal configured with the SRS resource to enter a connected state;

[0410] The valid area of ​​the updated SRS resource.

[0411] Optionally, when the first network device is a first base station, the method further includes one or more of the following:

[0412] Paging the terminal configured with SRS resources to enter the connected state;

[0413] Update the valid area of ​​SRS resources;

[0414] Reconfigure SRS resources for the terminal that configures SRS resources;

[0415] The updated valid area of ​​the SRS resource is sent to the terminal and / or the second network device that configures the SRS resource.

[0416] Optionally, when the first network device is a location management function network element, the method further includes one or more of the following:

[0417] Sending fourth indication information to the first base station, where the fourth indication information is used to instruct the first base station to page the terminal configured with the SRS resource to enter a connected state;

[0418] Update the valid area of ​​SRS resources;

[0419] Sending the updated valid area of ​​the SRS resource to the first base station;

[0420] Reconfigure SRS resources for the terminal that has configured SRS resources.

[0421] Optionally, the first message further includes identification information of the SRS resource and / or identification information of the terminal configuring the SRS resource.

[0422] Optionally, when the first network device is a first base station, the second network device is a location management function network element and / or a second base station;

[0423] When the first network device is a location management function network element, the second network device is a second base station.

[0424] Figure 5 A schematic diagram of the structure of the second network device provided in the embodiment of the present application, such as Figure 5 As shown, the second network device includes a memory 520, a transceiver 510 and a processor 500; wherein the processor 500 and the memory 520 may also be arranged physically separately.

[0425] The memory 520 is used to store computer programs; the transceiver 510 is used to send and receive data under the control of the processor 500.

[0426] Among them, Figure 5 In the embodiment, the bus architecture may include any number of interconnected buses and bridges, specifically linking various circuits of one or more processors represented by processor 500 and memory represented by memory 520. The bus architecture may also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and are therefore not further described in this application. The bus interface provides an interface. The transceiver 510 may be a plurality of components, namely, a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium, which may include a wireless channel, a wired channel, an optical cable, and other transmission media.

[0427] The processor 500 is responsible for managing the bus architecture and general processing, and the memory 520 can store data used by the processor 500 when performing operations.

[0428] The processor 500 may be a CPU, an ASIC, an FPGA or a CPLD, and the processor may also adopt a multi-core architecture.

[0429] The processor 500 calls the computer program stored in the memory 520 to execute any of the methods provided in the embodiments of the present application according to the obtained executable instructions, for example:

[0430] A first message sent by a first network device is received, where the first message includes valid time information of an SRS resource.

[0431] According to the first message, the valid time of the SRS resource is updated.

[0432] Optionally, the effective time information of the SRS resource includes one or more of the following:

[0433] The effective time length of SRS resources;

[0434] The expiration time of the SRS resource;

[0435] The first indication information is used to indicate that the effective time of the SRS resource needs to be updated.

[0436] Optionally, the method further comprises:

[0437] Sending a second message to the first network device;

[0438] The second message includes one or more of the following:

[0439] Second indication information, where the second indication information is used to indicate that the effective time of the SRS resource is updated successfully;

[0440] The third indication information is used to indicate that the effective time update of the SRS resource fails;

[0441] The failed cell list includes identification information of cells that failed to update the effective time of SRS resources.

[0442] Optionally, when the second network device is a location management function network element, the second message further includes one or more of the following:

[0443] Fourth indication information, where the fourth indication information is used to instruct the first network device to page the terminal configured with the SRS resource to enter a connected state;

[0444] The valid area of ​​the updated SRS resource.

[0445] Optionally, the first message further includes identification information of the SRS resource and / or identification information of the terminal configuring the SRS resource.

[0446] Optionally, when the second network device is a second base station, the first network device is a location management function network element and / or a first base station;

[0447] When the second network device is a location management function network element, the first network device is a first base station.

[0448] It should be noted here that the above-mentioned first network device and the second network device provided in the embodiment of the present application can implement all the method steps implemented in the above-mentioned method embodiment, and can achieve the same technical effect. The parts and beneficial effects that are the same as those in the method embodiment will not be described in detail here.

[0449] Figure 6 One of the structural diagrams of the SRS resource validity maintenance device provided in the embodiment of the present application is applied to the first network device, such as Figure 6 As shown, the device comprises:

[0450] The first sending unit 600 is configured to send a first message to the second network device, where the first message includes valid time information of the SRS resource.

[0451] Optionally, when the first network device is a first base station and the first network device meets the first condition, the first network device sends a first message to the second network device;

[0452] The first condition includes one or more of the following:

[0453] Configure the effective time of SRS resources;

[0454] Configure SRS resources for the terminal;

[0455] A timing advance TA is configured for the terminal configured with SRS resources.

[0456] Optionally, when the first network device is a location management function network element and the first network device meets the second condition, the first network device sends a first message to the second network device;

[0457] The second condition includes one or more of the following:

[0458] Receive the effective time information of SRS resources;

[0459] Configure the validity period of SRS resources.

[0460] Optionally, the effective time information of the SRS resource includes one or more of the following:

[0461] The effective time length of SRS resources;

[0462] The expiration time of the SRS resource;

[0463] The first indication information is used to indicate that the effective time of the SRS resource needs to be updated.

[0464] Optionally, the device further comprises:

[0465] A first receiving unit, configured to receive a second message sent by a second network device;

[0466] The second message includes one or more of the following:

[0467] Second indication information, where the second indication information is used to indicate that the effective time of the SRS resource is updated successfully;

[0468] The third indication information is used to indicate that the effective time update of the SRS resource fails;

[0469] The failed cell list includes identification information of cells that failed to update the effective time of SRS resources.

[0470] Optionally, when the second network device is a location management function network element, the second message further includes one or more of the following:

[0471] Fourth indication information, where the fourth indication information is used to instruct the first network device to page the terminal configured with the SRS resource to enter a connected state;

[0472] The valid area of ​​the updated SRS resource.

[0473] Optionally, when the first network device is a first base station, the apparatus further includes one or more of the following:

[0474] A paging unit, used to page a terminal configured with SRS resources to enter a connected state;

[0475] An updating unit, used for updating a valid area of ​​an SRS resource;

[0476] A configuration unit, configured to reconfigure SRS resources for a terminal that configures SRS resources;

[0477] The second sending unit is used to send the updated valid area of ​​the SRS resource to the terminal and / or the second network device that configures the SRS resource.

[0478] Optionally, when the first network device is a location management function network element, the apparatus further includes one or more of the following:

[0479] A third sending unit is used to send fourth indication information to the first base station, where the fourth indication information is used to instruct the first base station to page the terminal configured with SRS resources to enter a connected state;

[0480] An updating unit, used for updating a valid area of ​​an SRS resource;

[0481] A fourth sending unit, configured to send the updated valid area of ​​the SRS resource to the first base station;

[0482] The configuration unit is used to reconfigure the SRS resources for the terminal that configures the SRS resources.

[0483] Optionally, the first message further includes identification information of the SRS resource and / or identification information of the terminal configuring the SRS resource.

[0484] Optionally, when the first network device is a first base station, the second network device is a location management function network element and / or a second base station;

[0485] When the first network device is a location management function network element, the second network device is a second base station.

[0486] Figure 7 The second structural diagram of the SRS resource validity maintenance device provided in the embodiment of the present application is applied to the second network device, such as Figure 7 As shown, the device comprises:

[0487] The second receiving unit 700 is configured to receive a first message sent by a first network device, where the first message includes valid time information of an SRS resource;

[0488] The determining unit 710 is configured to update the effective time of the SRS resource according to the first message.

[0489] Optionally, the effective time information of the SRS resource includes one or more of the following:

[0490] The effective time length of SRS resources;

[0491] The expiration time of the SRS resource;

[0492] The first indication information is used to indicate that the effective time of the SRS resource needs to be updated.

[0493] Optionally, the device further comprises:

[0494] A fifth sending unit, configured to send a second message to the first network device;

[0495] The second message includes one or more of the following:

[0496] Second indication information, where the second indication information is used to indicate that the effective time of the SRS resource is updated successfully;

[0497] Third indication information, where the third indication information is used to indicate that the effective time update of the SRS resource fails;

[0498] The failed cell list includes identification information of cells that failed to update the effective time of SRS resources.

[0499] Optionally, when the second network device is a location management function network element, the second message further includes one or more of the following:

[0500] Fourth indication information, where the fourth indication information is used to instruct the first network device to page the terminal configured with the SRS resource to enter a connected state;

[0501] The valid area of ​​the updated SRS resource.

[0502] Optionally, the first message further includes identification information of the SRS resource and / or identification information of the terminal configuring the SRS resource.

[0503] Optionally, when the second network device is a second base station, the first network device is a location management function network element and / or a first base station;

[0504] When the second network device is a location management function network element, the first network device is a first base station.

[0505] It should be noted that the division of units in the embodiments of the present application is schematic and is only a logical function division. There may be other division methods in actual implementation. In addition, each functional unit in each embodiment of the present application may be integrated into a processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0506] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a processor-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions to enable a computer device (which can be a personal computer, server, or network device, etc.) or a processor (processor) to perform all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), disk or optical disk and other media that can store program codes.

[0507] It should be noted here that the above-mentioned device provided in the embodiment of the present application can implement all the method steps implemented in the above-mentioned method embodiment, and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as those in the method embodiment will not be described in detail here.

[0508] In some embodiments, a non-transitory readable storage medium is further provided, wherein the non-transitory readable storage medium stores a computer program, wherein the computer program is used to enable a processor to execute the SRS resource validity maintenance method provided by the above-mentioned method embodiments.

[0509] Specifically, the above-mentioned non-transitory readable storage medium provided in the embodiment of the present application can implement all the method steps implemented by the above-mentioned method embodiments, and can achieve the same technical effects. The parts and beneficial effects that are the same as the method embodiments in this embodiment will not be described in detail here.

[0510] It should be noted that the non-transitory readable storage medium can be any available medium or data storage device that can be accessed by the processor, including but not limited to magnetic storage (such as floppy disks, hard disks, magnetic tapes, magneto-optical disks (MO), etc.), optical storage (such as CD, DVD, BD, HVD, etc.), and semiconductor storage (such as ROM, EPROM, EEPROM, non-volatile memory (NAND FLASH), solid-state drive (SSD)), etc.

[0511] In some embodiments, a processor-readable storage medium is further provided, wherein the processor-readable storage medium stores a computer program, and the computer program is used to enable a processor to execute the SRS resource validity maintenance method provided by the above-mentioned method embodiments.

[0512] Specifically, the processor-readable storage medium provided in the embodiment of the present application can implement all the method steps implemented in the above-mentioned method embodiments, and can achieve the same technical effects. The parts and beneficial effects that are the same as those in the method embodiments will not be described in detail herein.

[0513] In some embodiments, a computer-readable storage medium is further provided, wherein the computer-readable storage medium stores a computer program, and the computer program is used to enable a computer to execute the SRS resource validity maintenance method provided by the above-mentioned method embodiments.

[0514] Specifically, the above-mentioned computer-readable storage medium provided in the embodiment of the present application can implement all the method steps implemented by the above-mentioned method embodiments, and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as the method embodiment will not be described in detail here.

[0515] In some embodiments, a communication device is further provided, wherein a computer program is stored in the communication device, and the computer program is used to enable the communication device to execute the SRS resource validity maintenance method provided by the above-mentioned method embodiments.

[0516] Specifically, the above-mentioned communication device provided in the embodiment of the present application can implement all the method steps implemented by the above-mentioned method embodiments, and can achieve the same technical effects. The parts and beneficial effects that are the same as the method embodiments in this embodiment will not be described in detail here.

[0517] In some embodiments, a chip product is further provided, wherein a computer program is stored in the chip product, and the computer program is used to enable the chip product to execute the SRS resource validity maintenance method provided by the above-mentioned method embodiments.

[0518] Specifically, the above-mentioned chip product provided in the embodiment of the present application can implement all the method steps implemented by the above-mentioned method embodiments, and can achieve the same technical effects. The parts and beneficial effects of this embodiment that are the same as the method embodiment will not be described in detail here.

[0519] The technical solution provided in the embodiment of the present application can be applicable to a variety of systems, especially 5G systems. For example, the applicable system can be a global system of mobile communication (GSM) system, a code division multiple access (CDMA) system, a wideband code division multiple access (WCDMA) general packet radio service (GPRS) system, a long term evolution (LTE) system, a LTE frequency division duplex (FDD) system, a LTE time division duplex (TDD) system, an advanced long term evolution (LTE-A) system, a universal mobile telecommunication system (UMTS), a world-wide interoperability for microwave access (WiMAX) system, a 5G new air interface (NR) system, etc. These various systems include terminal equipment and network equipment. The system may also include a core network part, such as an evolved packet system (EPS), a 5G system (5GS), etc.

[0520] The terminal involved in the embodiment of the present application may be a device that provides voice and / or data connectivity to a user, a handheld device with a wireless connection function, or other processing devices connected to a wireless modem. In different systems, the name of the terminal may also be different. For example, in a 5G system, the terminal may be called a user equipment (UE). A wireless terminal device can communicate with one or more core networks (CN) via a radio access network (RAN). The wireless terminal device may be a mobile terminal device, such as a mobile phone (or a "cellular" phone) and a computer with a mobile terminal device. For example, it may be a portable, pocket-sized, handheld, computer-built-in or vehicle-mounted mobile device that exchanges language and / or data with a wireless access network. For example, personal communication service (PCS) phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDAs) and other devices. The wireless terminal device may also be referred to as a system, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, an access point, a remote terminal device, an access terminal device, a user terminal device, a user agent, and a user device, but is not limited in the embodiments of the present application.

[0521] The base station involved in the embodiment of the present application may include multiple cells providing services for terminals. Depending on the specific application scenario, the base station may also be called an access point, or may be a device in the access network that communicates with a wireless terminal device through one or more sectors on the air interface, or other names.

[0522] The base station and the terminal device can each use one or more antennas for multiple-input multiple-output (MIMO) transmission. MIMO transmission can be single-user MIMO (SU-MIMO) or multi-user MIMO (MU-MIMO). Depending on the form and number of antenna combinations, MIMO transmission can be 2D-MIMO, 3D-MIMO, FD-MIMO or massive-MIMO, or it can be diversity transmission, precoding transmission or beamforming transmission, etc.

[0523] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application may adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) that contain computer-usable program code.

[0524] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer executable instructions. These computer executable instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0525] These processor executable instructions may also be stored in a processor readable memory that can direct a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the processor readable memory produce an article of manufacture including an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0526] These processor-executable instructions may also be loaded onto a computer or other programmable data processing device so that a series of operational steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for executing on the computer or other programmable device to implement the process. Figure 1A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0527] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. A method for maintaining the validity of a sounding reference signal (SRS) resource, characterized in that: Applied to a first network device, comprising: A first message is sent to the second network device, where the first message includes valid time information of the SRS resource.

2. The SRS resource validity maintenance method according to claim 1, characterized in that: When the first network device is a first base station and the first network device meets a first condition, the first network device sends the first message to the second network device; The first condition includes one or more of the following: Configure the validity period of the SRS resource; Configuring the SRS resource for the terminal; A timing advance TA is configured for the terminal that configures the SRS resource.

3. The SRS resource validity maintenance method according to claim 1, characterized in that: When the first network device is a location management function network element and the first network device meets a second condition, the first network device sends the first message to the second network device; The second condition includes one or more of the following: Receiving the effective time information of the SRS resource; Configure the validity period of the SRS resource.

4. The SRS resource validity maintenance method according to claim 1, characterized in that: The effective time information of the SRS resource includes one or more of the following: The effective time length of the SRS resource; The expiration time of the validity period of the SRS resource; The first indication information is used to indicate that the effective time of the SRS resource needs to be updated.

5. The SRS resource validity maintenance method according to claim 1, characterized in that: The method further comprises: receiving a second message sent by the second network device; The second message includes one or more of the following: second indication information, where the second indication information is used to indicate that the effective time of the SRS resource is successfully updated; third indication information, where the third indication information is used to indicate that the effective time of the SRS resource fails to be updated; A failed cell list, wherein the failed cell list includes identification information of cells that failed to update the effective time of the SRS resource.

6. The SRS resource validity maintenance method according to claim 5, characterized in that: In the case where the second network device is a location management function network element, the second message further includes one or more of the following: Fourth indication information, where the fourth indication information is used to instruct the first network device to page the terminal configured with the SRS resource to enter a connected state; The valid area of ​​the SRS resource after update.

7. The SRS resource validity maintenance method according to claim 5 or 6, characterized in that: In the case where the first network device is a first base station, the method further includes one or more of the following: Paging the terminal configured with the SRS resource to enter a connected state; Updating the valid area of ​​the SRS resource; reconfiguring SRS resources for the terminal that configures the SRS resources; The updated valid area of ​​the SRS resource is sent to the terminal and / or the second network device that configures the SRS resource.

8. The SRS resource validity maintenance method according to claim 5, characterized in that: In the case where the first network device is a location management function network element, the method further includes one or more of the following: Sending fourth indication information to the first base station, where the fourth indication information is used to instruct the first base station to page the terminal configured with the SRS resource to enter a connected state; Updating the valid area of ​​the SRS resource; Sending the updated valid area of ​​the SRS resource to the first base station; Reconfigure the SRS resources for the terminal that configures the SRS resources.

9. The SRS resource validity maintenance method according to claim 1, characterized in that: The first message also includes identification information of the SRS resource and / or identification information of a terminal that configures the SRS resource.

10. The SRS resource validity maintenance method according to claim 1, characterized in that: In the case where the first network device is a first base station, the second network device is a location management function network element and / or a second base station; When the first network device is a location management function network element, the second network device is a second base station.

11. A method for maintaining the validity of a sounding reference signal (SRS) resource, characterized in that: Applied to the second network device, comprising: Receiving a first message sent by a first network device, where the first message includes valid time information of an SRS resource; The valid time of the SRS resource is updated according to the first message.

12. The SRS resource validity maintenance method according to claim 11, characterized in that: The effective time information of the SRS resource includes one or more of the following: The effective time length of the SRS resource; The expiration time of the validity period of the SRS resource; The first indication information is used to indicate that the effective time of the SRS resource needs to be updated.

13. The SRS resource validity maintenance method according to claim 11, characterized in that: The method further comprises: Sending a second message to the first network device; The second message includes one or more of the following: second indication information, where the second indication information is used to indicate that the effective time of the SRS resource is successfully updated; third indication information, where the third indication information is used to indicate that the effective time of the SRS resource fails to be updated; A failed cell list, wherein the failed cell list includes identification information of cells that failed to update the effective time of the SRS resource.

14. The SRS resource validity maintenance method according to claim 13, characterized in that: In the case where the second network device is a location management function network element, the second message further includes one or more of the following: Fourth indication information, where the fourth indication information is used to instruct the first network device to page the terminal configured with the SRS resource to enter a connected state; The valid area of ​​the SRS resource after update.

15. The SRS resource validity maintenance method according to claim 11, characterized in that: The first message also includes identification information of the SRS resource and / or identification information of a terminal that configures the SRS resource.

16. The SRS resource validity maintenance method according to claim 11, characterized in that: In the case where the second network device is a second base station, the first network device is a location management function network element and / or a first base station; In the case where the second network device is a location management function network element, the first network device is a first base station.

17. A first network device, characterized in that: Including memory, transceiver, processor: A memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations: A first message is sent to the second network device, where the first message includes valid time information of the SRS resource.

18. The first network device according to claim 17, characterized in that: When the first network device is a first base station and the first network device meets a first condition, the first network device sends the first message to the second network device; The first condition includes one or more of the following: Configure the validity period of the SRS resource; Configuring the SRS resource for the terminal; A timing advance TA is configured for the terminal that configures the SRS resource.

19. The first network device according to claim 17, characterized in that: When the first network device is a location management function network element and the first network device meets the second condition, the first network device sends the first message to the second network device; The second condition includes one or more of the following: Receiving the effective time information of the SRS resource; Configure the validity period of the SRS resource.

20. The first network device according to claim 17, characterized in that: The effective time information of the SRS resource includes one or more of the following: The effective time length of the SRS resource; The expiration time of the validity period of the SRS resource; The first indication information is used to indicate that the effective time of the SRS resource needs to be updated.

21. The first network device according to claim 17, characterized in that: The operations also include: receiving a second message sent by the second network device; The second message includes one or more of the following: second indication information, where the second indication information is used to indicate that the effective time of the SRS resource is successfully updated; third indication information, where the third indication information is used to indicate that the effective time of the SRS resource fails to be updated; A failed cell list, wherein the failed cell list includes identification information of cells that failed to update the effective time of the SRS resource.

22. The first network device according to claim 21, characterized in that: In the case where the second network device is a location management function network element, the second message further includes one or more of the following: Fourth indication information, where the fourth indication information is used to instruct the first network device to page the terminal configured with the SRS resource to enter a connected state; The valid area of ​​the SRS resource after update.

23. The first network device according to claim 21 or 22, characterized in that: In a case where the first network device is a first base station, the operation further includes one or more of the following: Paging the terminal configured with the SRS resource to enter a connected state; Updating the valid area of ​​the SRS resource; reconfiguring SRS resources for the terminal that configures the SRS resources; The updated valid area of ​​the SRS resource is sent to the terminal and / or the second network device that configures the SRS resource.

24. The first network device according to claim 21, characterized in that: In the case where the first network device is a location management function network element, the operation further includes one or more of the following: Sending fourth indication information to the first base station, where the fourth indication information is used to instruct the first base station to page the terminal configured with the SRS resource to enter a connected state; Updating the valid area of ​​the SRS resource; Sending the updated valid area of ​​the SRS resource to the first base station; Reconfigure the SRS resources for the terminal that configures the SRS resources.

25. The first network device according to claim 17, characterized in that: The first message also includes identification information of the SRS resource and / or identification information of a terminal that configures the SRS resource.

26. The first network device according to claim 17, characterized in that: In the case where the first network device is a first base station, the second network device is a location management function network element and / or a second base station; When the first network device is a location management function network element, the second network device is a second base station.

27. A second network device, characterized in that: Including memory, transceiver, processor: A memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations: Receiving a first message sent by a first network device, where the first message includes valid time information of an SRS resource; The valid time of the SRS resource is updated according to the first message.

28. The second network device according to claim 27, characterized in that: The effective time information of the SRS resource includes one or more of the following: The effective time length of the SRS resource; The expiration time of the validity period of the SRS resource; The first indication information is used to indicate that the effective time of the SRS resource needs to be updated.

29. The second network device according to claim 27, characterized in that: The operations also include: Sending a second message to the first network device; The second message includes one or more of the following: second indication information, where the second indication information is used to indicate that the effective time of the SRS resource is successfully updated; third indication information, where the third indication information is used to indicate that the effective time of the SRS resource fails to be updated; A failed cell list, wherein the failed cell list includes identification information of cells that failed to update the effective time of the SRS resource.

30. The second network device according to claim 29, characterized in that: In the case where the second network device is a location management function network element, the second message further includes one or more of the following: Fourth indication information, where the fourth indication information is used to instruct the first network device to page the terminal configured with the SRS resource to enter a connected state; The valid area of ​​the SRS resource after update.

31. The second network device according to claim 27, characterized in that: The first message also includes identification information of the SRS resource and / or identification information of a terminal that configures the SRS resource.

32. The second network device according to claim 27, characterized in that: In the case where the second network device is a second base station, the first network device is a location management function network element and / or a first base station; In the case where the second network device is a location management function network element, the first network device is a first base station.

33. A device for maintaining the validity of a sounding reference signal (SRS) resource, characterized in that: include: The first sending unit is used to send a first message to the second network device, where the first message includes valid time information of the SRS resource.

34. A device for maintaining the validity of a sounding reference signal (SRS) resource, characterized in that: include: A second receiving unit, configured to receive a first message sent by a first network device, wherein the first message includes valid time information of an SRS resource; A determining unit is used to update the effective time of the SRS resource according to the first message.

35. A non-transitory readable storage medium, characterized in that The non-transitory readable storage medium stores a computer program, and the computer program is used to enable a processor to execute the SRS resource validity maintenance method according to any one of claims 1 to 10.

36. A non-transitory readable storage medium, characterized in that The non-transitory readable storage medium stores a computer program, and the computer program is used to enable a processor to execute the SRS resource validity maintenance method according to any one of claims 11 to 16.

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