Position information processing and reporting method, base station device, and computer storage medium

Abstract

The embodiment of the present application provides a kind of position information processing, reporting method, base station equipment and computer storage medium, by obtaining first position relationship information, first position relationship information is the last position relationship information that source side base station reports to mobility management network element, first position relationship information is sent to target side base station, so that target side base station decides whether second position relationship information is reported to mobility management network element according to the first position relationship information received, and second position relationship information is the position relationship information that target terminal is acquired for the first time after switching to target side base station;Position relationship information is the relationship between the terminal position of target terminal and the area of interest of core network.In some implementation processes, the judgment logic of target side base station after simplifying terminal context migration is judged whether to report position relationship information, and the effect of reducing reporting overhead is reduced.

Description

Technical Field

[0001] The embodiments of the present invention relate to, but are not limited to, the field of wireless communication, and specifically, to, but are not limited to, location information processing, reporting methods, base station equipment, and computer storage media. Background Technology

[0002] If the Access and Mobility Management Function (AMF) has sent a location reporting request for the User Equipment (UE) to the base station, and the request carries the type "UE presence in the area of ​​interest," then when the terminal context migrates through the Xn interface (the network interface between NG-RAN (NG-Radio Access Network, 5G radio access network) nodes), the source base station will carry the location reporting information to the target base station through the Location ReportingInformation element in the XNRETRIEVE UE CONTEXT RESPONSE signaling (a signaling in the Xn interface for retrieving the terminal context response) or the XNHANDOVER REQUEST signaling (a handover request signaling in the Xn interface). The target base station determines whether to report the location information and the target terminal's location relationship relative to the area of ​​interest of the core network to the AMF based on whether the location relationship has changed since the latest report.

[0003] In related technologies, when the terminal context is transmitted through the Xn interface, the target base station has a complex problem in determining the positional relationship of the terminal relative to the region of interest of the core network, and sometimes it will generate some unnecessary reporting overhead. Summary of the Invention

[0004] The location information processing, reporting method, base station, and computer storage medium provided in this embodiment of the invention mainly solve the technical problem that when the terminal context is transmitted through the Xn interface, the target-side base station has a complex judgment on whether to report the location relationship of the target terminal relative to the area of ​​interest of the core network, and may generate unnecessary reporting overhead.

[0005] To address the aforementioned technical problems, embodiments of the present invention provide a location information processing method applied to a source-side base station, comprising:

[0006] Obtain first location relationship information, which is the location relationship information last reported by the source-side base station to the mobility management network element;

[0007] The first location relationship information is sent to the target-side base station, so that the target-side base station can decide whether to report the second location relationship information to the mobility management network element based on the received first location relationship information. The second location relationship information is the location relationship information obtained for the first time after the target terminal switches to the target-side base station.

[0008] The location relationship information refers to the relationship between the target terminal's location and the core network's region of interest.

[0009] This invention also provides a location information reporting method, applied to a target-side base station, comprising:

[0010] Receive first location relationship information sent by other devices, the first location relationship information being the location relationship information last reported by the source-side base station to the mobility management network element;

[0011] If the received first location relationship information and second location relationship information meet the predetermined conditions, the second location relationship information is reported to the mobility management network element. The second location relationship information is the first location relationship information obtained after the target terminal switches to the target side base station.

[0012] The location relationship information refers to the relationship between the target terminal's location and the core network's region of interest.

[0013] This invention also provides a base station device, including a processor, a memory, and a communication bus;

[0014] The communication bus is used to enable communication between the processor and the memory;

[0015] The processor is used to execute one or more computer programs stored in the memory to implement the location information processing method steps as described above, and / or to implement the location information reporting method steps as described above.

[0016] This invention also provides a computer storage medium storing one or more programs, which can be executed by one or more processors to implement the location information processing method steps described above, and / or to implement the location information reporting method steps described above.

[0017] According to the location information processing, reporting method, base station equipment, and computer storage medium provided in the embodiments of the present invention, by acquiring first location relationship information, which is the location relationship information last reported by the source base station to the mobility management network element, the first location relationship information is sent to the target base station, so that the target base station can decide whether to report second location relationship information to the mobility management network element based on the received first location relationship information. The second location relationship information is the location relationship information first acquired after the target terminal switches to the target base station. The location relationship information is the relationship between the terminal location of the target terminal and the region of interest of the core network. In some implementations, it can achieve technical effects including but not limited to simplifying the judgment logic of the target base station to determine whether to report location relationship information after terminal context migration, and reducing reporting overhead.

[0018] Other features and corresponding beneficial effects of the present invention will be described in the latter part of the specification, and it should be understood that at least some of the beneficial effects will become obvious from the description in the specification. Attached Figure Description

[0019] Figure 1 This is a schematic flowchart of the location information processing method according to Embodiment 1 of the present invention;

[0020] Figure 2 This is a flowchart illustrating the location information reporting method according to Embodiment 1 of the present invention;

[0021] Figure 3 This is a timing diagram of the base station reporting the location of an RRC-Inactive terminal in Embodiment 2 of the present invention;

[0022] Figure 4 This is a schematic diagram of the base station equipment according to Embodiment 2 of the present invention. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this invention clearer, the embodiments of this invention will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0024] Example 1:

[0025] To reduce the overhead of the target base station's determination of whether to report the relationship between the terminal and the core network's region of interest when the terminal context is transmitted via the Xn interface, this embodiment provides a location information processing method. This location information processing method is applied to the source base station. Please refer to [link to relevant documentation]. Figure 1 The method includes:

[0026] S101. Obtain the first positional relationship information;

[0027] It should be noted that the first location relationship information is the location relationship information last reported by the source-side base station to the mobility management network element.

[0028] S102. Send the first location relationship information to the target-side base station so that the target-side base station can decide whether to report the second location relationship information to the mobility management network element based on the received first location relationship information.

[0029] It should be noted that the second location relationship information is the location relationship information obtained for the first time after the terminal switches to the target side base station.

[0030] The location relationship information includes the relationship between the target terminal's location and the core network's region of interest. The target terminal can be any terminal whose context has migrated via the Xn interface. It is understood that the location information processing method in this embodiment is applied to the source-side base station, which can directly obtain information it has previously reported to the mobility management network element; that is, the source-side base station can acquire the first location relationship information.

[0031] For example, including but not limited to the process of inter-site resume (i.e., the terminal initiates a resume procedure to access other base stations), inter-site Rnau (Radio Access Network based notification Area Update, hereinafter referred to as Rnau), or inter-site re-establishment, the terminal context is transmitted through the Xn interface. After the target base station obtains the terminal context, if the target base station needs to determine whether to report location relationship information to the mobility management network element based on the relationship between the target terminal's location at the source base station and the core network's area of ​​interest, it can directly make the determination using the first location relationship information sent by the above method, without having to perform complex logical judgments itself. This ensures accurate judgment results and eliminates situations where judgment is impossible, thereby reducing the number of times the target base station reports to the mobility management network element. In some implementations, this helps reduce reporting overhead (e.g., signaling overhead).

[0032] In some embodiments, step S102 includes: adding a location relationship information element to the Xn interface, the location relationship information element identifying the first location relationship information; and sending the location relationship information element to the target base station. By adding the information element to the interface, the location relationship information can be transmitted through the interface. Accordingly, the target base station should make corresponding adaptations to obtain the location relationship information element from the Xn interface and understand the actual first location relationship information based on the location relationship information element.

[0033] In some embodiments, sending the location relationship information element to the target base station includes carrying the location relationship information element in the target signaling. It should be noted that the target signaling includes signaling that the source base station needs to send to the target base station during terminal context handover, such as, but not limited to, RETRIEVE UE CONTEXT RESPONSE signaling (a signaling for retrieving terminal context response) and / or HANDOVER REQUEST signaling (a handover request signaling). Through these signaling messages, the location relationship information element is carried to the target base station, thereby facilitating the target base station to perform a judgment after obtaining the terminal context.

[0034] The location information processing method provided in this embodiment of the invention obtains first location relationship information and sends it to a target-side base station. The target-side base station then decides whether to report second location relationship information to the mobility management network element based on the received first location relationship information. This avoids the target-side base station consuming unnecessary resources and reporting overhead due to its inability to accurately determine the relationship between the target terminal's location and the core network's region of interest. The method simplifies the target-side base station's logic for determining whether to report the relationship between the terminal's location and the core network's region of interest when the terminal context undergoes Xn interface migration, and saves unnecessary reporting overhead in some implementations, thereby reducing resource and performance consumption.

[0035] This embodiment also provides a location information reporting method, which is applied to a target-side base station. Please refer to [link to relevant documentation]. Figure 1 ,include:

[0036] S201, Receive the first location relationship information sent by other devices;

[0037] It should be noted that the first location relationship information is the location relationship information last reported by the source-side base station to the mobility management network element.

[0038] It is understood that the other devices in this step include other devices such as the source-side base station. This embodiment does not limit the type of other devices. As shown above, it can be the source-side base station, which is also a base station. In other embodiments, it may also be other network devices.

[0039] S202. If the received first location relationship information and second location relationship information meet the predetermined conditions, the second location relationship information is reported to the mobility management network element.

[0040] It should be noted that the second location relationship information is the location relationship information obtained for the first time after the target terminal switches to the target side base station.

[0041] The location relationship information includes the relationship between the target terminal's location and the core network's region of interest. It is understood that the location information processing method in this embodiment is applied to the target-side base station, which can obtain the second location relationship information reported by the target-side base station.

[0042] It is understandable that since the target-side base station receives the first location relationship information sent by other devices, it can directly decide whether to report based on the first location relationship information, thus avoiding unnecessary reporting due to the inability to accurately know the relationship between the terminal location and the core network's region of interest. It can be seen that the location information reporting method in this embodiment can save unnecessary information reporting overhead.

[0043] In some implementations, the location information reporting method further includes:

[0044] S203. If the received first location relationship information and second location relationship information do not meet the predetermined conditions, the second location relationship information will not be reported to the mobility management network element.

[0045] It is understood that in this embodiment, the first location relationship information that the target-side base station can obtain can accurately reflect the relationship between the terminal location and the core network region of interest. Therefore, the judgment on whether the predetermined conditions are met is accurate, avoiding the occurrence of missed reports or unnecessary reports.

[0046] In some implementations, the received first location relationship information and second location relationship information satisfying predetermined conditions include:

[0047] The second location relationship information changes compared to the first location relationship information. That is, if the second location relationship information changes compared to the first location relationship information, the second location relationship information is reported to the mobility management network element. Alternatively, if it is determined that the relationship between the target terminal's location and the core network's region of interest has changed (the last report from the source base station differs from the first acquisition by the target base station), the target base station reports the relationship between the target terminal's location and the core network's region of interest to the mobility management network element, thus informing the mobility management network element of the change in the relationship between the terminal's location and the core network's region of interest.

[0048] In some implementations, the relationship between the terminal location and the region of interest in the core network includes, but is not limited to:

[0049] The terminal is located within the core network's area of ​​interest.

[0050] The terminal is not located within the core network's area of ​​interest.

[0051] It is impossible to determine whether the terminal's location is within the core network's area of ​​interest.

[0052] In some implementations, when the base station obtains a precise terminal location, it can accurately compare it with the core network's Region of Interest (ROI) and determine whether the terminal's location is within the RRC. In other implementations, the base station obtains a range of terminal locations. For example, when a terminal is in an RRC (Radio Resource Control) inactive state, it can move within the RNA (Radio Access Network based Notification Area) without notifying the NG-RAN. Based on this possible range of terminal location, the relationship between the terminal location and the RRC may be uncertain. Specifically, if the RRC does not completely encompass the terminal's location, the terminal may or may not be within the RRC, making it impossible to determine whether it is within the RRC. Conversely, if the RRC completely encompasses the terminal's location or the terminal's location is completely outside the RRC, it can be determined whether the terminal is within or outside the RRC.

[0053] In these implementations, regardless of the relationship between the terminal location and the region of interest in the core network, as long as the first location relationship information is different from the second location relationship information (i.e., the relationship between the terminal location of the target terminal and the region of interest in the core network has changed), the target-side base station will report the relationship between the terminal location of the target terminal and the region of interest in the core network to the mobility management network element.

[0054] In some implementations, reporting the relationship between the current terminal location and the region of interest (ROI) of the core network to the mobility management element includes: reporting the relationship between the current terminal location and the ROI of the core network to the mobility management element via signaling through the N2 interface. As a specific example, the relationship between the terminal location and the ROI of the core network can be reported to the mobility management element via LOCATION REPORT signaling (a type of signaling for location reporting) on ​​the N2 interface (the network interface between the access network and the mobility management element). According to the above description in this embodiment, the N2 interface does not generate unnecessary signaling overhead.

[0055] The location information reporting method provided in this embodiment of the invention receives first location relationship information sent by other devices, and determines whether to report second location relationship information to the mobility management network element based on the received first location relationship information. This avoids the target-side base station consuming unnecessary resources and reporting overhead due to the inability to accurately know the relationship between the target terminal's location and the core network's region of interest. It simplifies the target-side base station's judgment logic on whether to report the relationship between the terminal's location and the core network's region of interest when the terminal context undergoes Xn interface migration, and saves unnecessary reporting overhead in some implementation processes, reducing resource and performance consumption.

[0056] Example 2:

[0057] To facilitate understanding of the location information processing method and location information reporting method in the embodiments of the present invention, this embodiment first describes the processing and reporting process of location information and the location relationship between the terminal and the area of ​​interest of the core network in related technologies. In related technologies, in some cases, the source base station carries location reporting information to the target base station. For example, if the mobility management network element has sent a location reporting request from the terminal to the base station, and the type carried is UEpresence in the area of ​​interest, then when the terminal context migrates through the Xn interface, the source base station carries the location reporting information to the target base station through the Location Reporting Information element in the XN RETRIEVE UE CONTEXT RESPONSE signaling.

[0058] In related technologies, the source-side base station does not inform the target-side base station of the location relationship of the latest reported terminal relative to the region of interest in the core network. Therefore, the target-side base station makes its own judgment based on the relevant information from the source-side base station that it can obtain. The process by which the target-side base station determines the location relationship of the latest reported terminal relative to the region of interest in the core network in related technologies may include the following:

[0059] Scenario 1: If the core network is only interested in the areas in the Tracking Area Identity List (TAI List), then the target base station can determine the positional relationship of the latest terminal reported by the source base station relative to the core network's area of ​​interest.

[0060] Scenario 2: The core network's region of interest includes areas in the tracking area identifier list, as well as the NG-RANCGI list (Radio Access Network Cell Global Identity List, or NG-RANCGI List) or the Global RAN Node ID List. In this case, the target base station determines the relationship between the terminal's tracking area identifier at the source base station and the core network's region of interest. If the target base station determines that the terminal's tracking area identifier at the source base station is in the core network's region of interest, it can determine that the terminal's position relative to the core network's region of interest at the source base station is within that region; otherwise, the target base station cannot determine the terminal's position relative to the core network's region of interest at the source base station.

[0061] Scenario 3: If the area of ​​interest of the core network only includes the global list of 5G radio access network cell identifiers or the global list of radio access network node identifiers, then the target base station will be completely unable to determine the positional relationship of the terminal relative to the area of ​​interest of the core network when it is at the source base station.

[0062] In related technologies, if the location relationship of the terminal relative to the area of ​​interest of the core network changes, the target-side base station reports the relevant information of the terminal's location to the mobility management network element (core network side) (usually reported via N2 signaling LOCATION REPORT). It is understood that if no change has occurred, no reporting is required.

[0063] When the target base station faces various situations, including but not limited to those described above, if it cannot determine whether the current location relationship of the terminal relative to the region of interest of the core network has changed compared to the location relationship reported by the source base station, the target base station can only report N2 signaling (LOCATION REPORT) to the core network to avoid missed reports. It is evident that in related technologies, to avoid missing reports of terminal location-related information (including the relationship between the terminal location and the region of interest of the core network), the target base station performs a cumbersome judgment process, and when it cannot make its own judgment, it can only directly report the terminal's location-related information. In some processes (e.g., the terminal's location relationship relative to the region of interest of the core network has not actually changed, but the target base station cannot determine whether a change has occurred), unnecessary N2 signaling overhead is generated.

[0064] The location information processing method and location information reporting method provided in this embodiment of the invention will be further described below with a more specific implementation process.

[0065] In this embodiment, a location relationship information element is added to the Xn interface. As a specific example, the location relationship information element is named UE Presence in this embodiment. In this example, the UE Presence information element is included in the Area of ​​Interest Information information element, as shown in Table 1 below, which illustrates the composition structure of the Area of ​​Interest Information information element in this example (the UE Presence information element is newly added in this example). The information element type of the UE Presence information element is an enumeration type, and the value range includes in, out, and unknown, which correspond to the terminal location being within the core network's area of ​​interest, the terminal location not being within the core network's area of ​​interest, and the inability to determine whether the terminal location is within the core network's area of ​​interest, respectively.

[0066] Table 1

[0067]

[0068]

[0069] When the terminal context migrates via the Xn interface, the location information processing methods performed by the source base station include:

[0070] S301. Obtain the first positional relationship information;

[0071] S302. Use location relationship information cells to identify the first location relationship information and carry the location relationship information cells through target signaling;

[0072] The target signaling includes signaling that the source base station needs to send to the target base station during the terminal context handover process, such as, but not limited to, RETRIEVE UE CONTEXT RESPONSE signaling and / or HANDOVER REQUEST signaling.

[0073] As a specific example, the source base station ultimately sends the UE Presence information element to the target base station via RETRIEVE UE CONTEXT RESPONSE and / or HANDOVER REQUEST signaling. Specifically, the aforementioned Area of ​​Interest Information element is included in the Location Reporting Information element of the RETRIEVE UE CONTEXT RESPONSE or HANDOVER REQUEST signaling. If the location reporting type is "report UE moving presence into or out of the Area of ​​Interest," the relationship between the target terminal's location last reported by the source base station to the mobility management network element and the core network's Area of ​​Interest can be filled into the UE Presence element, ultimately enabling the target base station to understand this relationship.

[0074] The location information reporting methods performed by the target-side base station include:

[0075] S401, Receive the first location relationship information sent by the source-side base station;

[0076] In this example, the first location relationship information is identified by the UE Presence information cell and sent to the target base station as the UE Presence information cell. The target base station can know the first location relationship information from the value of the UE Presence information cell, that is, know the relationship between the terminal location of the target terminal last reported to the mobility management network element by the source base station and the region of interest of the core network.

[0077] S402. When it is determined that the second location relationship information has changed compared with the first location relationship information, the second location relationship information is reported through the LOCATION REPORT signaling of the N2 interface.

[0078] The second location relationship information includes the relationship between the terminal location of the target terminal and the region of interest of the core network, which is obtained for the first time after the terminal switches to the target side base station.

[0079] If it is determined that the second positional relationship information is the same as the first positional relationship information, that is, no change has occurred, then the second positional relationship information will not be reported.

[0080] It is understandable that if the target base station (which becomes the new source base station after the terminal completes the handover) requires the terminal context to migrate to the next target base station during subsequent operations, it can also serve as the source base station to execute the aforementioned location information processing method. Therefore, the location information processing method and location information reporting method of this embodiment can be executed by the same device according to actual conditions.

[0081] Please see Figure 3 It also shows a timing diagram of a base station reporting the location of an RRC-Inactive terminal.

[0082] When a terminal is in RRC-Inactive state, if it receives a LOCATIONREPORTING CONTROL signaling message on the N2 interface from the core network, and the Event Type carried therein is "UE presence in the area of ​​interest," the RAN (Radio Access Network) side determines the relationship between the terminal's RNA and the core network's area of ​​interest and reports it. When the terminal experiences an RNAU, the RAN side will determine the relationship between the terminal's location and the core network's area of ​​interest; if it differs from the most recently reported result, it will report it. In other examples, during processes including but not limited to inter-site resume or inter-site re-establishment procedures, the RAN can also make the corresponding determination and report it after determining that the relationship between the terminal's location and the core network's area of ​​interest has changed.

[0083] In related technologies, when a terminal experiences an inter-station resume or inter-station Rnau, the target base station cannot determine whether the location relationship information last reported by the source base station to the mobility management network element was based on RNA determination or accurate location information. The target base station needs to perform complex logical judgments and may still be unable to determine the location relationship information. However, in the example of this embodiment, the target base station does not need to concern itself with the other processes experienced by the source base station and can directly obtain the location relationship information last reported by the source base station to the mobility management network element. The target base station only needs to compare the second location relationship information it obtains with the first location relationship information it receives.

[0084] As can be seen, in this example, the target base station only needs to compare the relationship between the terminal location of the terminal at the target base station and the region of interest of the core network with the result of the last report to the mobility management network element (i.e., the relationship between the terminal location of the target terminal and the region of interest of the core network last reported by the source base station to the mobility management network element) to determine whether it is necessary to report the relationship between the terminal location and the region of interest of the core network. The logic of the judgment is simplified and unnecessary reporting overhead is avoided (such as reducing the signaling overhead of the N2 interface LOCATION REPORT in this example).

[0085] Example 3:

[0086] This embodiment also provides a base station device, see [link to documentation]. Figure 4 As shown, it includes a processor 41, a memory 42, and a communication bus 43, wherein:

[0087] Communication bus 43 is used to realize the connection and communication between processor 41 and memory 42;

[0088] The processor 41 is used to execute one or more computer programs stored in the memory 42 to implement the location information processing method steps as described in Embodiment 1 and Embodiment 2, and / or to implement the location information reporting method steps as described in Embodiment 1 and Embodiment 2.

[0089] This embodiment also provides a computer storage medium, which includes volatile or non-volatile, removable or non-removable media implemented in any method or technology for storing information (such as computer-readable instructions, data structures, computer program modules or other data). Computer storage media include, but are not limited to, RAM (Random Access Memory), ROM (Read-Only Memory), EEPROM (Electrically Erasable Programmable Read-Only Memory), flash memory or other memory technologies, CD-ROM (Compact Disc Read-Only Memory), DVD (digital versatile disc) or other optical disc storage, magnetic cartridges, magnetic tapes, disk storage or other magnetic storage devices, or any other medium that can be used to store desired information and is accessible by a computer.

[0090] The computer storage medium in this embodiment can be used to store one or more computer programs. The one or more computer programs stored therein can be executed by a processor to implement the location information processing method steps as in Embodiment 1 and Embodiment 2, and / or to implement the location information reporting method steps as in Embodiment 1 and Embodiment 2.

[0091] For a base station, whether it is a source base station or a target base station is a dynamic concept. For a target terminal, the base station it is currently connected to is the source base station, and the base station it is about to switch to is the target base station. After the switch is completed, the target base station becomes the new source base station. Therefore, it can be understood that after the computer program stored in the computer storage medium in the embodiments of the present invention is executed, it can implement the location information processing method in the embodiments of the present invention, and it can also implement the location information reporting method in the embodiments of the present invention.

[0092] Therefore, those skilled in the art should understand that all or some of the steps, systems, and devices disclosed above, as well as the functional modules / units, can be implemented as software (which can be implemented using computer program code executable by a computing device), firmware, hardware, and suitable combinations thereof. In hardware implementations, the division between functional modules / units mentioned in the above description does not necessarily correspond to the division of physical components; for example, a physical component may have multiple functions, or a function or step may be performed collaboratively by several physical components. Some or all physical components may be implemented as software executed by a processor, such as a central processing unit, a digital signal processor, or a microprocessor, or as hardware, or as integrated circuits, such as application-specific integrated circuits (ASICs).

[0093] Furthermore, as is known to those skilled in the art, communication media typically contain computer-readable instructions, data structures, computer program modules, or other data in modulated data signals such as carrier waves or other transmission mechanisms, and may include any information delivery medium. Therefore, this invention is not limited to any particular combination of hardware and software.

[0094] The above description, in conjunction with specific implementation methods, provides a further detailed explanation of the embodiments of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the scope of protection of the present invention.

Claims

1. A location information processing method, applied to a source-side base station, comprising: Obtain first location relationship information, which is the location relationship information last reported by the source-side base station to the mobility management network element; The first location relationship information is sent to the target-side base station, so that the target-side base station can decide whether to report the second location relationship information to the mobility management network element based on whether the received first location relationship information and second location relationship information meet predetermined conditions. The second location relationship information is the location relationship information obtained for the first time after the target terminal switches to the target-side base station. The predetermined conditions include changes in the second location relationship information compared to the first location relationship information. The location relationship information refers to the relationship between the target terminal's location and the core network's region of interest.

2. The location information processing method as described in claim 1, characterized in that, Sending the first location relationship information to the target-side base station includes: Add a location relationship information element to the XN interface, wherein the location relationship information element identifies the first location relationship information; The location relationship information element is sent to the target-side base station.

3. The location information processing method as described in claim 2, characterized in that, The source-side base station sends the location relationship information cell to the target-side base station, including: The location relationship information element is carried in the target signaling, which includes signaling that needs to be sent to the target-side base station during the target terminal context switching process.

4. A location information reporting method, applied to a target-side base station, comprising: Receive first location relationship information sent by other devices, the first location relationship information being the location relationship information last reported by the source-side base station to the mobility management network element; If the received first location relationship information and second location relationship information meet predetermined conditions, the second location relationship information is reported to the mobility management network element. The second location relationship information is the location relationship information obtained for the first time after the target terminal switches to the target side base station. The predetermined conditions include changes in the second location relationship information compared to the first location relationship information. The location relationship information refers to the relationship between the target terminal's location and the core network's region of interest.

5. The location information reporting method as described in claim 4, characterized in that, The location information reporting method further includes: If the received first location relationship information and second location relationship information do not meet the predetermined conditions, the second location relationship information will not be reported to the mobility management network element.

6. The location information reporting method as described in claim 5, characterized in that, The relationship between the terminal location and the region of interest in the core network includes: The terminal is located within the core network's region of interest. The terminal location is not within the core network's region of interest. It is impossible to determine whether the terminal location is within the core network's region of interest.

7. The location information reporting method as described in any one of claims 4-6, characterized in that, The step of reporting the second location relationship information to the mobility management network element includes: The second location relationship information is reported to the mobility management network element via signaling through the N2 interface.

8. A base station device, the base station device comprising a processor, a memory, and a communication bus; The communication bus is used to enable communication between the processor and the memory; The processor is configured to execute one or more computer programs stored in the memory to implement the location information processing method as described in any one of claims 1-3, and / or to implement the location information reporting method as described in any one of claims 4-7.

9. A computer storage medium, characterized in that, The computer storage medium stores one or more computer programs, which can be executed by one or more processors to implement the location information processing method as described in any one of claims 1-3, and / or to implement the location information reporting method as described in any one of claims 4-7.

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