Base station device, terminal device and mobile access system

Abstract

The invention discloses base station equipment, terminal equipment and a mobile access system. Wherein the base station equipment comprises first base station equipment, and the first base station equipment is a base station part in the mobile access equipment; the first base station equipment comprises at least one cell; the first base station equipment sends a first inter-base-station request message to an adjacent base station or sends a first core network message and / or a second core network message to a core network, wherein the first inter-base-station request message comprises a cell information set of at least one cell, mobile base station indication information and a first time message; the mobile base station indication information is used for indicating that the first base station equipment is a base station part in the mobile access equipment; the first time information is used for representing the time length of the interface or the neighbor cell relation or the neighbor base station relation; the first core network message is used for releasing an interface between the first base station equipment and a core network; the second core network message is used for suspending an interface and / or application layer data between the first base station equipment and the core network.

Description

Technical Field

[0001] This application relates to the field of communication technology, and more specifically, to a base station device, a terminal device, and a mobile access system. Background Technology

[0002] The 3GPP 5G system adds several access devices that support expansion, such as... Figure 1 The R16-introduced IAB (Integrated Access and Backhaul) and such Figure 2 The image shows an R18 NCR (Network-Controlled Repeaters) device. The characteristics of IAB are as follows: Introduced in 3GPP 5G Release 16, IAB enables base stations to provide radio access and wireless backhaul connections for equipment, thus eliminating the need for more expensive wired backhaul installations. IAB refers to using a portion of the access spectrum as backhaul. The IAB network architecture includes architecture a and architecture b. Architecture a includes: AMF / UPF (Access and Mobility Management Functions / User Plane Functions), gNB (base station), and IAB-node (Integrated Access and Backhaul Node). Architecture b includes: MME / SPGW (Mobility Management Entity / Service Packet Gateway), MENB (primary base station), and SgNB (secondary base station). 5G promises high-frequency, high-bandwidth capabilities from the millimeter-wave band. However, a problem exists: high-frequency deployments have limited coverage and require denser base station layouts. This significantly increases deployment costs. A major factor contributing to this cost is the need for underground fiber optic deployment. IAB, where a portion of the radio spectrum is used for base station backhaul connections instead of fiber optics. The technical characteristics of NCR are as follows: 1) The NCR structure in 5G, controlled by the gNB of the radio network, consists of two main functional blocks, such as... Figure 2As shown, they are: NCR-MT (NCR-Mobile Terminal) and NCR-Fwd (NCR-Forwarding). The NCR-MT module uses the 5G (NR) network Uu interface to establish communication with the gNB through the C-link control link; it can complete the exchange of control information (such as beamforming, UL / DL switching and on / off switching, and NCR-Fwd module management). The NCR-MT module provides control and status signaling exchange with the gNB through C-link, and fulfills its responsibilities by supporting a subset of UE functions. 2) C-link characteristics: In NCR, the characteristics of C-link and IAB in transmission and reception are as follows: C-link DL and IAB links DL can be executed simultaneously or in TDM mode; C-link UL and IAB links UL can be performed in TDM mode; when considering NCR capabilities, the gNB controls multiplexing simultaneously, and the simultaneous transmission of UL in C-link and IAB depends on the NCR capabilities; 3) NCR-Fwd characteristics: In NCR, this module amplifies and forwards the UL / DL RF signals between the gNB and the UE through the IAB and access link. The NCR-Fwds module uses two sets of planar antennas: one for the IAB link and the other for the access link and an RF amplifier. The NCR-Fwd module primarily focuses on signal amplification and (analog) beamforming, eliminating the need for advanced digital receivers or transmitter chains. The performance requirements for the beamforming antennas are not as high as those for macro base stations or IAB node antennas; cost-effectiveness and ease of manufacture are key priorities. 4)

[0003] Both NCR-MT and NCR-Fwd can operate in the same or different frequency bands. NCR-MT, however, requires at least one carrier to operate within the frequency band forwarded by NCR-Fwd, using that band as a baseline. When NCR-MT and NCR-Fwd operate in the same frequency band, C-link and IAB will encounter similar large-scale channel characteristics, thus simplifying the control of IAB between gNB and NCR-Fwd. The two aforementioned schemes have some problems. For example, IAB needs to support a CU / DU separation architecture, and the served macro base stations need to support some core network functions. Therefore, the cost of upgrading the existing network and the cost of IAB are both high. Furthermore, NCR only supports fixed deployment, and from the UE's perspective, NCR is a transparent repeater, not supporting L2 / L3 processing capabilities. Therefore, to support mobile scenarios without upgrading existing 5G base stations, a new coverage extension scheme is needed, such as... Figure 3The WAB device is shown below. Therefore, the existing solutions have the following problems: They cannot guarantee whether inter-base station interface establishment is allowed: Since mobile base stations may have limited dwell time in a region, maintaining an inter-station interface will consume transmission and air interface resources. It is necessary to determine whether establishment is allowed based on various factors. Currently, the interface establishment or update message does not contain base station type information, so it is impossible to determine whether the base station to be established belongs to a mobile base station; In the traditional SON solution, the core network can only provide the IP address of the target base station, so it is impossible to directly obtain the mobile base station identity attributes of the target cell, and therefore it cannot be configured based on automatic configuration; The existence time of the interface cannot be determined: Since the existence of a mobile base station may be limited, it is necessary to determine its existence length for different scenarios. Traditional solutions can only delete it manually, which is not suitable for this scenario; The NG interface release and suspension function is not supported: During handover, the base station needs to release or suspend the connection between the old base station and the core network, but the current protocol does not support the interface release and suspension process between the core network and the base station, so it cannot support the current requirements. If the interface is directly deleted, the core network side will not know the reason for the release, resulting in alarms and error reports on the interface side.

[0004] Based on the above analysis of requirements and reasons, the current 3GPP Rel-18 protocols cannot meet the deployment requirements for low-cost mobile access devices.

[0005] There is currently no effective solution to the above problems. Summary of the Invention

[0006] This application provides a base station device, a terminal device, and a mobile access system to at least address the technical problem of high deployment costs for mobile access devices.

[0007] According to one aspect of the embodiments of this application, a [Summary] is provided, comprising: a first base station device, wherein the first base station device is a base station portion of a mobile access device; the first base station device includes at least one cell; the first base station device sends a first inter-base station request message to a neighboring base station or sends a first core network message and / or a second core network message to a core network, wherein the first inter-base station request message includes a cell information set of at least one cell, mobile base station indication information, and a first time message; the mobile base station indication information is used to indicate that the first base station device is a base station portion of a mobile access device; the first time message is used to indicate the duration of the existence of an interface or neighboring cell relationship or neighboring base station relationship; the first core network message is used to release the interface between the first base station device and the core network; and the second core network message is used to suspend the interface between the first base station device and the core network and / or application layer data.

[0008] Optionally, the mobile access device includes at least one base station device, including a first base station device; the first base station device supports at least one air interface technology of 5G or 6G, and different base station devices in the first base station device support the same or different air interface technologies; the first base station device adopts a first PLMN or a first SNPN, wherein the first PLMN and the second PLMN are the same or different, the first SNPN and the second SNPN are the same or different, and the second PLMN and the second SNPN are adopted by the first terminal device.

[0009] Optionally, the method includes: the first base station device receiving an establishment or recovery message sent by the first terminal device through an internal interface, and completing the establishment or recovery of the first base station device; the first terminal device is the terminal part of the mobile access device; and an internal interface exists between the first base station device and the first terminal device.

[0010] Optionally, the cell information set includes at least one of the following: the physical cell identifier of at least one cell included in the first base station equipment, the cell frequency of at least one cell included in the first base station equipment, the cell bandwidth of at least one cell included in the first base station equipment, and the cell identifier of at least one cell included in the first base station equipment.

[0011] Optionally, it includes: the first base station equipment establishes an interface with the core network or the second backhaul base station through a session bearer established by the first terminal equipment and the core network; the second backhaul base station is connected to the first control plane entity or the second control plane entity of the core network; and the second backhaul base station supports 5G base station functions and / or 6G base station functions.

[0012] Optionally, the first base station device receives a trigger message sent by the first terminal device. When the first base station device receives the trigger message, the first base station device establishes a first interface with the network management entity OMC according to the pre-configured transmission address information.

[0013] Optionally, the adjacent base station includes at least one of a first backhaul base station, a second backhaul base station, a third backhaul base station, and a base station portion of a second mobile access device. The first backhaul base station is a base station accessed by the first terminal device, the third backhaul base station is a base station adjacent to the first base station device, the third backhaul base station is not a base station accessed by the first terminal device, and the second backhaul base station is the target base station for handover by the first terminal device.

[0014] Optionally, this includes: the first base station device obtaining the first configuration information of the neighboring base station from the network management entity OMC or by providing auxiliary information through the core network.

[0015] Optionally, the first base station device indicates a broadcast message from a neighboring cell to the first terminal device. The broadcast message includes at least one of the following: the frequency of the neighboring cell, the physical cell identifier of the neighboring cell, and the access control identifier of the mobile access device.

[0016] Optionally, the method includes: the first base station device receiving measurement results of neighboring cells reported by the first terminal device, the measurement results including at least one of the frequency point of the neighboring cell, the physical cell identifier of the neighboring cell, and the access control identifier of the mobile access device.

[0017] Optionally, the method includes: the first base station device determines whether the neighboring cell is a mobile access device based on the measurement results, and determines whether to establish an interface with the neighboring cell based on the network management configuration. If an interface can be established, the device sends a fourth core network message to the first core network.

[0018] Optionally, it includes: the first base station device receiving a fifth core network message, the fifth core network message including at least one of the IP address, SCTP address, port address, and cell identifier of the neighboring cell.

[0019] Optionally, this includes: upon receiving a third core network message, the first base station device initiates the removal of the TNL association of the core network entity, wherein the third core network message is a reply from the core network after receiving the first core network message.

[0020] Optionally, the method includes: the first base station device obtaining the first configuration information of the neighboring base station from the network management entity OMC. The first configuration information includes at least one of the following: transmission address information, parameter configuration information, and indication information on whether to use an independent core network session to establish an interface. The parameter configuration information includes at least one of the following: the physical cell identifier (PCI) of the cell, frequency point information, cell identifier, base station identifier, and neighbor cell information.

[0021] Optionally, the first base station device selects one of the first session bearer and the second session bearer from the indication information in the first configuration information regarding whether to use an independent core network session to establish an interface, in order to establish an SCTP connection between the first base station device and the neighboring base station.

[0022] Optionally, the first inter-base station request message includes any one of the following: XN SETUP REQUEST, NG-RAN nodeConfiguration Update, S-NODE ADDITION REQUEST, S-NODE MODIFICATION REQUEST, 6G inter-base station interface establishment request message, 6G radio device configuration update, 5G / 6G inter-base station interface establishment request message, and 5G / 6G radio device configuration update.

[0023] Optionally, the first base station device sends an interface establishment request message and / or a base station configuration update message to the neighboring base station through a first base station inter-request message. If the first base station inter-request message does not contain first time information, it indicates that the interface exists permanently. The first time information is configured by the network management system or determined based on the dwell time of the first terminal device or the first base station device within the overlapping range of the neighboring base station.

[0024] Optionally, the first base station device sends a first base station request message to a neighboring base station. When the neighboring base station receives the first base station request message, it saves the first base station request message and generates a first base station response message. When the neighboring base station is a mobile base station, it generates a first base station rejection message or a first base station response message according to preset configuration information. The preset configuration information is used to indicate whether a direct interface can be established between mobile base stations.

[0025] Optionally, the first base station device receives a first base station response message or a first base station rejection message sent by a neighboring base station, wherein the first base station response message includes at least one of the following: a cell information set of at least one cell, mobile base station indication information and a first time message, and the first base station rejection message includes at least one of the following: a rejection reason value, wherein the rejection reason value includes at least one of the following: the base station type is not permitted or does not support mobile base stations.

[0026] Optionally, the first inter-base station response message includes any one of the following: XN SETUP RESPONSE, NG-RAN nodeConfiguration Update ACKNOWLEDGE, S-NODE ADDITION REQUEST ACKNOWLEDGE, S-NODEMODIFICATION REQUEST ACKNOWLEDGE, 6G inter-base station interface establishment response message, 6G radio device configuration update confirmation message, 5G / 6G inter-base station interface establishment response message, and 5G / 6G radio device configuration update confirmation message.

[0027] Optionally, the first inter-base station rejection message includes any one of the following: XN SETUP FAILURE, NG-RAN nodeConfiguration FAILURE, S-NODE ADDITION REQUEST FAILURE, S-NODE MODIFICATION REQUEST FAILURE, 6G inter-base station interface establishment rejection, 6G radio device configuration update rejection message, 5G / 6G inter-base station interface establishment rejection message, and 5G / 6G radio device configuration update rejection message.

[0028] Optionally, when the first base station device receives the response message between the two base stations, the first base station device completes the process of establishing the interface between the two base stations, and after configuring the neighbor cell relationship with the neighboring base station, it reports to the network management entity. The neighboring base station establishes the neighbor cell relationship with the first base station device before sending the response message between the two base stations. The neighbor cell relationship includes the physical cell identifier of the first base station, the frequency point of the cell managed by the first base station, the bandwidth of the cell managed by the first base station, the cell identifier of the cell managed by the first base station, the mobile base station indication information, and the first time information.

[0029] Optionally, if the first time information is carried in the request message between the first base stations, the first base station device starts a timer. If the timer exceeds a first duration, the first base station device triggers the release process of the interface between the neighboring base station and the first base station device, and deletes the neighbor cell relationship between the neighboring base station and the first base station device.

[0030] Optionally, the first base station device sends a first core network message to the core network, the first core network message including at least one of the following: the base station identifier of the first base station device, the tracking area identifier selected by the first base station device, the cell identifier of the first base station, the base station identifier of the neighboring base station, the tracking area identifier of the neighboring base station, and the interface address request indication between the first base station device and the neighboring base station.

[0031] Optionally, the neighboring base station receives a second core network message from the core network and obtains the second configuration information of the first base station device from the second core network message. The second configuration information includes: mobile base station indication information of the first base station device and Xn interface address information of the first base station device. The Xn interface address information includes at least one of the following: one or more transport layer address information, one or more IP-Sec transport layer addresses, one or more GTP transport layer addresses, and one or more SCTP transport layer addresses.

[0032] Optionally, when the first terminal device switches to a neighboring base station, the second base station device in the mobile access device is triggered to establish a connection with the core network. After the switch is completed, the first base station device sends a first message to the core network. The first message is sent by the base station to the core network for the deletion of the interface instance. If successful, the process deletes the existing application layer configuration data in both the base station and the core network nodes.

[0033] Optionally, upon receiving a message from the third core network, the first base station device initiates the removal of the TNL associations of the core network, removing all resources associated with the interface.

[0034] Optionally, if the first terminal device returns to the first backhaul base station during the handover process, the first base station device suspends the interface.

[0035] Optionally, the first base station equipment sends a second core network message to the core network. The second core network message is used to suspend signaling and data at the interface between the base station equipment and the core network.

[0036] Optionally, the first base station device sends a second core network message to the core network. Upon receiving the second core network message, the core network sends a fourth core network message to the first base station device. The fourth core network message indicates that during the period when the signaling and data of the interface between the base station device and the core network are suspended, at least one of the following is suspended: the signaling and data of the interface between the base station device and the core network, other signaling besides core network signaling, user context information, and user-related logical interface connections on the interface. Furthermore, no transmission occurs between the base station device and the core network through the logical interface.

[0037] Optionally, if the first terminal device returns to the first backhaul base station during the handover process, the first base station device sends a fifth core network message to the core network, indicating that the first base station device has resumed the transmission of user context, signaling and data at the interface between the first base station device and the core network.

[0038] According to another aspect of the embodiments of this application, a terminal device is also provided, including: a first terminal device, wherein the first terminal device is a terminal part of a mobile access device, the first terminal device supports at least some terminal functions, the first terminal device supports at least one wireless access technology among 4G access technology, 5G access technology, 6G access technology, and NTN access technology, and the first terminal device supports at least RRC connection state; the first terminal device establishes an IP connection through wireless access technology as a backhaul link of a first base station device; the first terminal device receives a handover command sent by the network and switches to the target cell.

[0039] Optionally, the first terminal device uses a second PLMN or a second SNPN to provide IP connection. The first PLMN and the second PLMN may be the same or different, and the first SNPN and the second SNPN may be the same or different.

[0040] Optionally, the first terminal device and the first base station device communicate through an interface; the first terminal device sends an establishment or recovery message to the first base station device to complete the establishment or recovery of the first base station device.

[0041] Optionally, the first terminal device establishes at least one session bearer with the core network through the second backhaul base station. The second backhaul base station is connected to the first control plane entity of the first core network or the second control plane entity of the first core network. The second backhaul base station supports 5G base station functions, 6G base station functions, and NTN functions.

[0042] Optionally, when the first terminal device sends a trigger message to the first base station device, the first base station device establishes a first interface with the network management entity OMC based on the pre-configured transmission address information.

[0043] Optionally, the first terminal device receives a broadcast message from a neighboring cell indicated by the first base station device. The broadcast message includes at least one of the neighboring cell's frequency point, the neighboring cell's physical cell identifier, and the mobile access device access control identifier.

[0044] Optionally, the first terminal device establishes at least one session bearer with the core network, or the first terminal device switches to the second backhaul base station. The second backhaul base station is connected to the first control plane entity of the core network, or connected to the second control plane entity of the core network. The second backhaul base station is the base station that the first terminal device needs to access after switching.

[0045] Optionally, the first terminal device sends a trigger message to the first base station device. The trigger message is used to trigger the first base station device to establish a first interface with the network management entity OMC through the first session bearer according to the pre-configured transmission address information.

[0046] Optionally, the first interface is used by the first base station device to obtain the first configuration information of neighboring base stations from the network management entity OMC. The first configuration information includes at least one of the following: transmission address information, parameter configuration information, and indication information on whether to establish an interface using an independent core network session. The parameter configuration information includes at least one of the following: the physical cell identifier (PCI) of the cell, frequency point information, cell identifier, base station identifier, and neighbor cell information. The neighboring base stations include: a first backhaul base station, a second backhaul base station obtained in the handover scenario, and a third backhaul base station. The first backhaul base station is the base station accessed by the first terminal device, and the third backhaul base station is the base station adjacent to the first base station device. The third backhaul base station is not the base station accessed by the first terminal device.

[0047] Optionally, when the first terminal device switches to the neighboring base station, it triggers the second base station device in the mobile access device to establish a connection with the core network. After the switch is completed, the first base station device sends a first message to the core network. The first message is sent by the base station to the core network for the deletion of the interface instance. If successful, the process deletes the existing application layer configuration data in both the base station and the core network nodes.

[0048] Optionally, the first terminal device returns to the first backhaul base station during the handover process, triggering the first base station device suspend interface.

[0049] Optionally, during the handover process, the first terminal device returns to the first backhaul base station, triggering the first base station device to send a fifth core network message to the core network. The fifth core network message indicates that the first base station device has restored the transmission of user context, signaling, and data at the interface between the first base station device and the core network.

[0050] According to another aspect of the embodiments of this application, a terminal device is also provided, which obtains wireless access services from a first base station device or a mobile access device, wherein the wireless access includes at least one of 4G, 5G, and 6G; supports at least one RRC state in the first base station device or mobile access device, namely RRC connected state, RRC idle state, and RRC inactive state; receives RRC messages from the first base station device or mobile access device, and switches or redirects from a first cell to a second cell or a second base station device; wherein the second base station device is a base station device supported in the mobile access device, and all of them have an interface with the first terminal device.

[0051] Optionally, the terminal device receives service in the mobile access device, the first base station device, or the second base station device. The terminal device does not recognize the first terminal device. The second base station device is a base station device supported by the mobile access device, and both have an interface with the first terminal device.

[0052] Optionally, the terminal device obtains broadcast messages or transmits and receives wireless signals from the cell belonging to the first base station device; the wireless signals include at least one of 4G signaling and data, 5G signaling and data, and 6G signaling and data.

[0053] Optionally, the terminal device completes the connection with the core network or data transmission and reception through the connection established between the mobile access device, the first base station device, or the second base station device and the core network.

[0054] Optionally, when the terminal device is in RRC idle state, it supports cell reselection or cell selection between cells or within cells managed by the base station equipment of ordinary cells or mobile access equipment.

[0055] Optionally, when the terminal device is in the RRC inactive state, it supports cell reselection or cell selection between or within the cell to which the base station equipment of the ordinary cell or mobile access device belongs.

[0056] Optionally, an RRC message is received from the first base station device to switch or redirect from the first cell to the second cell or the second base station device.

[0057] According to another aspect of the embodiments of this application, a mobile access system is also provided, which provides a wireless access link for a terminal device and connects to a 5GC that provides services to the terminal device via an IP connection provided by a backhaul PDU session;

[0058] The mobile access system includes: a first terminal device and at least one base station device, wherein the base station device includes at least: a first base station device; the first terminal device supports some or all user equipment (UE) functions; the mobile access system is deployed on a moving or stationary object to provide services to terminal devices located inside or outside the object; the first terminal device is the terminal portion of the mobile access system, the first terminal device supports at least some terminal functions, the first terminal device supports at least one of the following radio access technologies: 4G, 5G, 6G, and NTN; the first terminal device supports at least RRC connected state; the first terminal device establishes an IP connection as the backhaul link of the first base station device; the first terminal device receives a handover command from the network and switches to the target cell.

[0059] Optionally, the mobile access system sends a first base station request message to a neighboring base station or a first core network message and / or a second core network message to the core network through the first base station equipment. The first base station request message includes a cell information set of at least one cell, mobile base station indication information, and a first time message. The mobile base station indication information is used to indicate that the first base station equipment is a base station part of the mobile access system. The first time message is used to indicate the duration of the existence of the interface or neighbor cell relationship or neighbor base station relationship. The first core network message is used to release the interface between the first base station equipment and the core network. The second core network message is used to suspend the interface and / or application layer data between the first base station equipment and the core network.

[0060] According to another aspect of the embodiments of this application, a mobile wireless device access method is also provided, characterized in that it is applied to a first base station device and includes: sending a first base station inter-base station request message to a neighboring base station or sending a first core network message and / or a second core network message to the core network, wherein the first base station inter-base station request message includes a cell information set of at least one cell, mobile base station indication information, and a first time message; the mobile base station indication information is used to indicate that the first base station device is a base station portion of a mobile access device; the first time message is used to indicate the duration of the existence of the interface or neighbor cell relationship or neighbor base station relationship; the first core network message is used to release the interface between the first base station device and the core network; and the second core network message is used to suspend the interface and / or application layer data between the first base station device and the core network.

[0061] According to another aspect of the embodiments of this application, a communication device is also provided, including: a memory and a processor, the processor being configured to run a program stored in the memory, wherein the program executes the above-described mobile wireless device access method when it runs.

[0062] According to another aspect of the embodiments of this application, a non-volatile storage medium is also provided, the storage medium including a stored program, wherein the program, when running, controls the device where the storage medium is located to execute the above-described mobile wireless device access method.

[0063] According to another aspect of the embodiments of this application, a computer program product is also provided, the computer program product including a non-volatile computer-readable storage medium, wherein the non-volatile computer-readable storage medium stores a computer program, and the computer program is executed by a processor to provide a mobile wireless device access method.

[0064] In this embodiment, a first base station device is used, which is the base station portion of a mobile access device. The first base station device includes at least one cell. The first base station device sends a first inter-base station request message to a neighboring base station or sends a first core network message and / or a second core network message to the core network. The first inter-base station request message includes a set of cell information for at least one cell, mobile base station indication information, and a first time message. The mobile base station indication information indicates that the first base station device is the base station portion of the mobile access device. The first time message indicates the duration of the existence of the interface, neighbor cell relationship, or neighbor base station relationship. The first core network message releases the interface between the first base station device and the core network. The second core network message suspends the interface between the first base station device and the core network and / or application layer data. By directly releasing or suspending the interface between the first base station and the core network through the first base station device, the purpose of avoiding hardware upgrades to existing base stations is achieved, thereby reducing deployment costs and solving the technical problem of high deployment costs for mobile access devices. Attached Figure Description

[0065] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0066] Figure 1 This is a schematic diagram of an IAB network architecture;

[0067] Figure 2 This is a schematic diagram of an NCR network architecture;

[0068] Figure 3 This is a schematic diagram of the architecture of a mobile access device;

[0069] Figure 4 This is a schematic diagram of a base station device in a mobile access device according to an embodiment of this application;

[0070] Figure 5This is a schematic diagram of a terminal device in a mobile access device according to an embodiment of this application;

[0071] Figure 6 This is a schematic diagram of a mobile access system according to an embodiment of this application;

[0072] Figure 7 This is a flowchart of a mobile wireless device access method according to an embodiment of this application;

[0073] Figure 8 This is a hardware structure block diagram of a computer terminal for a mobile wireless device access method according to an embodiment of this application. Detailed Implementation

[0074] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0075] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0076] In related technologies, IABs need to support a CU / DU separation architecture, and the macro base stations they serve need to support some core network functions. Therefore, the cost of upgrading the existing network and the cost of IABs are both high. In addition, NCRs only support fixed deployments, and from the UE's perspective, the NCR is a transparent repeater, without supporting L2 / L3 processing capabilities. Therefore, there is a technical problem of high deployment costs for mobile access equipment. To solve this problem, this application provides relevant solutions in its embodiments, which are described in detail below.

[0077] This application provides a base station device, such as... Figure 4As shown, it includes: a first base station device, wherein the first base station device is the base station portion of a mobile access device; the first base station device includes at least one cell; the first base station device sends a first inter-base station request message to a neighboring base station or sends a first core network message and / or a second core network message to the core network, wherein the first inter-base station request message includes a set of cell information of at least one cell, mobile base station indication information, and a first time message; the mobile base station indication information is used to indicate that the first base station device is the base station portion of a mobile access device; the first time information is used to indicate the duration of the existence of the interface or neighboring cell relationship or neighboring base station relationship; the first core network message is used to release the interface between the first base station device and the core network; the second core network message is used to suspend the interface between the first base station device and the core network and / or application layer data.

[0078] In real-world scenarios, the following situations exist: the first base station device sends a request message between the first base stations to a neighboring base station; the first base station device sends a first core network message to the core network; the first base station device sends a second core network message to the core network; and the first base station device sends a first core network message and a second core network message to the core network.

[0079] First-time information can be used to indicate the duration of an interface's existence, the duration of neighbor cell relationships, or the duration of neighbor base station relationships.

[0080] The mobile access equipment includes at least one base station device, including a first base station device; the first base station device supports at least one air interface technology of 5G or 6G, and different base station devices in the first base station device support the same or different air interface technologies; the first base station device adopts a first PLMN (Public Land Mobile Network) or a first SNPN (Stand-alone Non-Public Network), wherein the first PLMN and the second PLMN are the same or different, the first SNPN and the second SNPN are the same or different, and the second PLMN and the second SNPN are adopted by the first terminal device.

[0081] It is understandable that the first terminal device is the terminal part of the mobile access device.

[0082] The first base station device receives establishment or recovery messages sent by the first terminal device through an internal interface, and completes the establishment or recovery of the first base station device. The first terminal device is the terminal part of the mobile access device; there is an internal interface between the first base station device and the first terminal device.

[0083] The cell information set includes at least one of the following: the physical cell identifier of at least one cell included in the first base station equipment, the cell frequency of at least one cell included in the first base station equipment, the cell bandwidth of at least one cell included in the first base station equipment, and the cell identifier of at least one cell included in the first base station equipment.

[0084] The first base station equipment establishes an interface with the core network or the second backhaul base station through a session bearer established by the first terminal equipment and the core network. The second backhaul base station is connected to the first control plane entity or the second control plane entity of the core network. The second backhaul base station supports 5G base station functions and / or 6G base station functions.

[0085] The first base station device receives a trigger message sent by the first terminal device. Upon receiving the trigger message, the first base station device establishes a first interface with the network management entity OMC (Operation and Maintenance Center) based on the pre-configured transmission address information.

[0086] The neighboring base station includes at least one of the first backhaul base station, the second backhaul base station, the third backhaul base station, and the base station portion of the second mobile access device. The first backhaul base station is the base station accessed by the first terminal device. The third backhaul base station is the base station adjacent to the first base station device. The third backhaul base station is not the base station accessed by the first terminal device. The second backhaul base station is the target base station for the first terminal device to switch over.

[0087] The first base station equipment obtains the first configuration information of the neighboring base station from the network management entity OMC or by providing auxiliary information through the core network.

[0088] The first base station device instructs the first terminal device to broadcast messages from neighboring cells. The broadcast messages include at least one of the following: the frequency of the neighboring cell, the physical cell identifier of the neighboring cell, and the access control identifier of the mobile access device.

[0089] It should be noted that the neighboring cells of the first terminal device refer to other cells adjacent to the cell (serving cell) where the first terminal device is currently located.

[0090] The first base station equipment receives the measurement results of the neighboring cell reported by the first terminal equipment. The measurement results include at least one of the following: the frequency point of the neighboring cell, the physical cell identifier of the neighboring cell, and the access control identifier of the mobile access device.

[0091] The first base station equipment determines whether the neighboring cell is a mobile access device based on the measurement results, and determines whether to establish an interface with the neighboring cell based on the network management configuration. If an interface can be established, it sends a fourth core network message to the first core network.

[0092] The first base station equipment receives a message from the fifth core network, which includes at least one of the following: the IP address, SCTP address, port address, and cell identifier of the neighboring cell.

[0093] Upon receiving a message from the third core network, the first base station device initiates the removal of the TNL (Transport Network Layer) association of the core network entity. The third core network message is a reply from the core network after receiving the first core network message.

[0094] The first base station device obtains the first configuration information of the neighboring base station from the network management entity OMC. The first configuration information includes at least one of the following: transmission address information, parameter configuration information, and indication information on whether to use an independent core network session to establish an interface. The parameter configuration information includes at least one of the following: the cell's physical cell identifier (PCI), frequency point information, cell identifier, base station identifier, and neighbor cell information.

[0095] The first base station device selects one of the first session bearer and the second session bearer from the indication information in the first configuration information regarding whether to use an independent core network session to establish an interface, in order to establish an SCTP (Stream Control Transmission Protocol) connection between the first base station device and the neighboring base station.

[0096] The first inter-base station request message includes any one of the following: XN SETUP REQUEST, NG-RAN nodeConfiguration Update, S-NODE ADDITION REQUEST, S-NODE MODIFICATION REQUEST, 6G inter-base station interface establishment request message, 6G radio device configuration update, 5G / 6G inter-base station interface establishment request message, and 5G / 6G radio device configuration update.

[0097] The first base station device sends an interface establishment request message and / or base station configuration update message to the neighboring base station through the first base station inter-request message. If the first base station inter-request message does not contain first time information, it indicates that the interface exists permanently. The first time information is configured by the network management or determined based on the dwell time of the first terminal device or the first base station device within the overlapping range of the neighboring base station.

[0098] The first base station device sends a first base station request message to the neighboring base station. When the neighboring base station receives the first base station request message, it saves the first base station request message and generates a first base station response message. When the neighboring base station is a mobile base station, it generates a first base station rejection message or a first base station response message according to preset configuration information. The preset configuration information is used to indicate whether a direct interface can be established between mobile base stations.

[0099] The first base station device receives a first base station response message or a first base station rejection message sent by a neighboring base station. The first base station response message includes at least one of the following: a cell information set of at least one cell, mobile base station indication information, and a first time message. The first base station rejection message includes at least one of the following: a rejection reason value. The rejection reason value includes at least one of the following: the base station type is not permitted or does not support mobile base stations.

[0100] The first type of inter-base station response message includes any one of the following: XN SETUP RESPONSE (Xn establishment response), NG-RAN nodeConfiguration Update ACKNOWLED (NG-RAN node configuration update confirmation), S-NODE ADDITIONREQUEST ACKNOWLEDGE (secondary node add request confirmation), S-NODE MODIFICATION REQUEST ACKNOWLEDGE (secondary node modification request confirmation), 6G inter-base station interface establishment response message, 6G radio device configuration update confirmation message, 5G / 6G inter-base station interface establishment response message, and 5G / 6G radio device configuration update confirmation message.

[0101] The first type of inter-base station rejection message includes any one of the following: XN SETUP FAILURE (Xn establishment failed), NG-RAN nodeConfiguration FAILURE (NG-RAN node configuration update failed), S-NODE ADDITION REQUEST FAILURE (secondary node add request failed), S-NODE MODIFICATION REQUEST FAILURE (secondary node modification request failed), 6G inter-base station interface establishment rejection, 6G radio device configuration update rejection message, 5G / 6G inter-base station interface establishment rejection message, and 5G / 6G radio device configuration update rejection message.

[0102] When the first base station receives the response message between the two base stations, the first base station completes the process of establishing the interface between the two base stations. After configuring the neighbor cell relationship with the neighboring base station, it reports to the network management entity. Before sending the response message between the two base stations, the neighboring base station establishes the neighbor cell relationship with the first base station. The neighbor cell relationship includes the physical cell identifier of the first base station, the frequency point of the cell managed by the first base station, the bandwidth of the cell managed by the first base station, the cell identifier of the cell managed by the first base station, the mobile base station indication information, and the first time information.

[0103] If the first base station device carries first time information in the request message between the first base stations, the first base station device starts a timer. If the timer exceeds a first duration, the first base station device triggers the release process of the interface between the neighboring base station and the first base station device, and deletes the neighbor cell relationship between the neighboring base station and the first base station device.

[0104] The first base station device sends a first core network message to the core network. The first core network message includes at least one of the following: the base station identifier of the first base station device, the tracking area identifier selected by the first base station device, the cell identifier of the first base station, the base station identifier of the neighboring base station, the tracking area identifier of the neighboring base station, and the interface address request indication between the first base station device and the neighboring base station.

[0105] The neighboring base station receives a second core network message from the core network and obtains the second configuration information of the first base station device from the second core network message. The second configuration information includes: mobile base station indication information of the first base station device and Xn interface address information of the first base station device. The Xn interface address information includes at least one of the following: one or more transport layer address information, one or more IP-Sec transport layer addresses, one or more GTP transport layer addresses, and one or more SCTP transport layer addresses.

[0106] When the first terminal device switches to a neighboring base station, it triggers the second base station device in the mobile access device to establish a connection with the core network. After the switch is completed, the first base station device sends a first message to the core network. The first message is sent by the base station to the core network for the deletion of the interface instance. If successful, the process deletes the existing application layer configuration data in both the base station and the core network.

[0107] Upon receiving a message from the third core network, the first base station device initiates the removal of the TNL associations of the core network, removing all resources associated with the interface.

[0108] When the first terminal device returns to the first backhaul base station during the handover process, the first base station device suspends the interface.

[0109] The first base station equipment sends a second core network message to the core network. The second core network message is used to suspend the signaling and data of the interface between the base station equipment and the core network.

[0110] The first base station device sends a second core network message to the core network. Upon receiving the second core network message, the core network sends a fourth core network message to the first base station device. The fourth core network message indicates that during the period when the signaling and data of the interface between the base station device and the core network are suspended, at least one of the following is suspended: the signaling and data of the interface between the base station device and the core network, other signaling besides core network signaling, user context information, and user-related logical interface connections on the interface. Furthermore, no transmission occurs between the base station device and the core network through the logical interface.

[0111] When the first terminal device returns to the first backhaul base station during the handover process, the first base station device sends a fifth core network message to the core network. The fifth core network message indicates that the first base station device has resumed the transmission of user context, signaling and data at the interface between the base station device and the core network.

[0112] This application also provides a terminal device, such as... Figure 5 As shown, it includes: a first terminal device, wherein the first terminal device is the terminal part of a mobile access device, the first terminal device supports at least some terminal functions, the first terminal device supports at least one of the following wireless access technologies: 4G access technology, 5G access technology, 6G access technology, and NTN access technology, and the first terminal device supports at least RRC connection state; the first terminal device establishes an IP connection through wireless access technology as the backhaul link of the first base station device; the first terminal device receives a handover command sent by the network and switches to the target cell.

[0113] The first terminal device uses a second PLMN or a second SNPN to provide IP connection. The first PLMN and the second PLMN may be the same or different, and the first SNPN and the second SNPN may be the same or different.

[0114] The first terminal device communicates with the first base station device through an interface; the first terminal device sends an establishment or recovery message to the first base station device to complete the establishment or recovery of the first base station device.

[0115] The first terminal device establishes at least one session bearer with the core network through the second backhaul base station. The second backhaul base station is connected to the first control plane entity of the first core network or the second control plane entity of the first core network. The second backhaul base station supports 5G base station functions, 6G base station functions, and NTN (Non-Terrestrial Networks) functions.

[0116] When the first terminal device sends a trigger message to the first base station device, the first base station device establishes a first interface with the network management entity OMC based on the pre-configured transmission address information.

[0117] The first terminal device receives a broadcast message from a neighboring cell indicated by the first base station device. The broadcast message includes at least one of the following: the frequency point of the neighboring cell, the physical cell identifier of the neighboring cell, and the access control identifier of the mobile access device.

[0118] The first terminal device establishes at least one session bearer with the core network, or the first terminal device switches to the second backhaul base station. The second backhaul base station is connected to the first control plane entity of the core network, or connected to the second control plane entity of the core network. The second backhaul base station is the base station that the first terminal device needs to access after switching.

[0119] The first terminal device sends a trigger message to the first base station device. The trigger message is used to trigger the first base station device to establish a first interface with the network management entity OMC through the first session bearer according to the pre-configured transmission address information.

[0120] The first interface is used by the first base station device to obtain the first configuration information of neighboring base stations from the network management entity OMC. The first configuration information includes at least one of the following: transmission address information, parameter configuration information, and indication information on whether to use an independent core network session to establish an interface. The parameter configuration information includes at least one of the following: the physical cell identifier (PCI) of the cell, frequency point information, cell identifier, base station identifier, and neighbor cell information. The neighboring base stations include: the first backhaul base station, the second backhaul base station obtained in the handover scenario, and the third backhaul base station. The first backhaul base station is the base station accessed by the first terminal device, and the third backhaul base station is the base station adjacent to the first base station device. The third backhaul base station is not the base station accessed by the first terminal device.

[0121] When the first terminal device switches to the neighboring base station, it triggers the second base station device in the mobile access device to establish a connection with the core network. After the switch is completed, the first base station device sends a first message to the core network. The first message is sent by the base station to the core network for the deletion of the interface instance. If successful, the process deletes the existing application layer configuration data in both the base station and the core network nodes.

[0122] During the handover process, the first terminal device returns to the first backhaul base station, triggering the first base station device's hangup interface.

[0123] During the handover process, the first terminal device returns to the first backhaul base station, triggering the first base station device to send a fifth core network message to the core network. The fifth core network message indicates that the first base station device has restored the transmission of user context, signaling and data at the interface between the base station device and the core network.

[0124] This application also provides another type of terminal device (a general terminal device) that obtains wireless access services from a first base station device or a mobile access device, wherein the wireless access includes at least one of 4G, 5G, and 6G; supports at least one of RRC states, namely RRC connected state, RRC idle state, and RRC inactive state, in the first base station device or mobile access device; receives RRC messages from the first base station device or mobile access device; and switches or redirects from the first cell to the second cell or the second base station device, wherein the first cell and the second cell are two different cells, and the first cell may be the currently serving cell.

[0125] The terminal device (a general-purpose terminal device) will not recognize the first terminal device when it receives services from a mobile access device, a first base station device, or a second base station device.

[0126] It is understandable that the first base station equipment and the second base station equipment are two different base station equipment. The second base station equipment is a base station equipment supported in the mobile access equipment, and both have interfaces with the first terminal equipment.

[0127] The terminal device (a general terminal device) obtains broadcast messages or transmits and receives wireless signals from the cell belonging to the first base station device; the wireless signals include at least one of 4G signaling and data, 5G signaling and data, and 6G signaling and data.

[0128] Terminal equipment (general-purpose terminal equipment) completes the connection with the core network or data transmission and reception through the connection established between the mobile access equipment, the first base station equipment, or the second base station equipment and the core network.

[0129] When the terminal device (general terminal device) is in the RRC (Radio Resource Control) idle state, it supports cell reselection or cell selection between cells or within cells managed by the base station equipment of ordinary cells or mobile access devices.

[0130] When the terminal device (general terminal device) is in the RRC inactive state, it supports cell reselection or cell selection between cells or within cells to which the base station equipment of the ordinary cell or mobile access device belongs;

[0131] The terminal device (a general terminal device) receives an RRC message from the first base station device to switch or redirect from the first cell to the second cell or the second base station device.

[0132] This application also provides a mobile access system, such as... Figure 6 As shown, a wireless access link is provided for the terminal device, and the IP connection provided by the backhaul PDU session is connected to the 5GC that provides services to the terminal device.

[0133] The mobile access system 60 includes a first terminal device 61 and at least one base station device 62, wherein the base station device includes at least a first base station device 621. The first terminal device 61 supports some or all user equipment (UE) functions. The mobile access system 60 is deployed on a moving or stationary object to provide services to terminal devices located inside or outside the object. The first terminal device 61 is the terminal portion of the mobile access system 60. The first terminal device 61 supports at least some terminal functions and supports at least one of the following wireless access technologies: 4G, 5G, 6G, and NTN. The first terminal device 61 supports at least RRC connection mode. The first terminal device 61 establishes an IP connection as the backhaul link for the first base station device. The first terminal device 61 receives a handover command from the network and switches to the target cell.

[0134] The mobile access system 60 sends a first inter-base station request message to a neighboring base station or a first core network message and / or a second core network message to the core network through the first base station device 621. The first inter-base station request message includes a cell information set of at least one cell, mobile base station indication information, and a first time message. The mobile base station indication information is used to indicate that the first base station device 621 is a base station part of the mobile access system 60. The first time message is used to indicate the duration of the existence of the interface or neighbor cell relationship or neighbor base station relationship. The first core network message is used to release the interface between the first base station device 621 and the core network. The second core network message is used to suspend the interface between the first base station device 621 and the core network and / or application layer data.

[0135] This application also provides a method for mobile wireless device access, such as... Figure 7 As shown, the device applied to the first base station includes:

[0136] Step S701: Send a first inter-base station request message to a neighboring base station or send a first core network message and / or a second core network message to the core network. The first inter-base station request message includes a cell information set of at least one cell, mobile base station indication information, and a first time message. The mobile base station indication information is used to indicate that the first base station device is the base station part of the mobile access device. The first time message is used to indicate the duration of the existence of the interface or neighbor cell relationship or neighbor base station relationship. The first core network message is used to release the interface between the first base station device and the core network. The second core network message is used to suspend the interface between the first base station device and the core network and / or application layer data.

[0137] It is understood that the mobile wireless device access method embodiments provided in this application can be executed in a mobile terminal, computer terminal or similar computing device. Figure 8A hardware block diagram of a computer terminal for a mobile wireless device access method is shown. Figure 8 As shown, the computer terminal 10 may include one or more processors (shown as 102a, 102b, ..., 102n in the figure) (the processor may include, but is not limited to, a microprocessor MCU or a programmable logic device FPGA, etc.), a memory 104 for storing data, and a transmission module 106 for communication functions connected via wired and / or wireless networks. In addition, it may also include: a display, a keyboard, a cursor control device, an input / output interface (I / O interface), a universal serial bus (USB) port (which may be included as one of the ports of the I / O interface), a network interface, and a BUS bus. Those skilled in the art will understand that... Figure 8 The structure shown is for illustrative purposes only and does not limit the structure of the aforementioned electronic device. For example, computer terminal 10 may also include... Figure 8 The more or fewer components shown, or having the same Figure 8 The different configurations shown.

[0138] It should be noted that the aforementioned one or more processors and / or other data processing circuits are generally referred to herein as "data processing circuits". These data processing circuits may be implemented wholly or partially as software, hardware, firmware, or any other combination thereof. Furthermore, the data processing circuits may be a single, independent processing module, or may be wholly or partially integrated into any other element in the computer terminal 10. As involved in the embodiments of this application, the data processing circuits serve as processor control (e.g., selection of a variable resistor termination path connected to an interface).

[0139] The memory 104 can be used to store software programs and modules of application software, such as the program instruction / data storage device corresponding to the mobile wireless device access method in this embodiment. The processor executes various functional applications and data processing by running the software programs and modules stored in the memory 104, i.e., the aforementioned mobile wireless device access method. The memory 104 may include high-speed random access memory, and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some instances, the memory 104 may further include memory remotely located relative to the processor, and these remote memories can be connected to the computer terminal 10 via a network. Examples of such networks include, but are not limited to, the Internet, corporate intranets, local area networks, mobile communication networks, and combinations thereof.

[0140] The transmission module 106 is used to receive or send data via a network. Specific examples of the network described above may include a wireless network provided by the communication provider of the computer terminal 10. In one example, the transmission module 106 includes a Network Interface Controller (NIC), which can connect to other network devices via a base station to communicate with the Internet. In another example, the transmission module 106 may be a Radio Frequency (RF) module, used for wireless communication with the Internet.

[0141] The display can be, for example, a touchscreen liquid crystal display (LCD) that allows the account to interact with the account interface of the computer terminal 10.

[0142] It should be noted here that, in some optional embodiments, the above... Figure 8 The computer terminal shown may include hardware elements (including circuitry), software elements (including computer code stored on a computer-readable medium), or a combination of both hardware and software elements. It should be noted that... Figure 8 This is only one instance of a specific particular instance, and is intended to illustrate the types of components that may exist in the aforementioned computer terminal.

[0143] In the above operating environment, this application provides an embodiment of a mobile wireless device access method. It should be noted that the steps shown in the flowchart in the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions. Also, although a logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in a different order than that shown here.

[0144] This application also provides another mobile access device, including at least one base station device, including a first terminal device and a first base station device; wherein the first terminal device supports some or all of the UE functions;

[0145] The first terminal device establishes at least one session bearer with the core network, or the first terminal device switches to the second backhaul base station. The second backhaul base station is connected to the first control plane entity or the second control plane entity of the core network. The second backhaul base station is not a mobile access device, but a 5G base station or a 6G base station.

[0146] The first terminal device triggers the first base station device to establish an interface with the network management entity OMC;

[0147] The first base station equipment obtains the first configuration information of the neighboring base station from the network management OMC. The first configuration information includes at least one of the following: transmission address information, parameter configuration information, and whether to use an independent core network session establishment interface indication; the parameter configuration includes at least one of the following: cell PCI, frequency point information, cell identifier, base station identifier, and neighbor cell information; the transmission address information includes at least one of the following: port address and IP address; wherein the neighboring base station includes the first backhaul base station, the third backhaul base station, or the second backhaul base station obtained in the handover scenario; wherein the first backhaul base station is the base station accessed by the first terminal equipment, the second backhaul base station is the base station that the first terminal equipment needs to access after handover, and the third backhaul base station is not the base station accessed by the first terminal, but is adjacent to the first base station equipment in terms of coverage.

[0148] The first base station device determines whether to use the first session bearer or the second session bearer to establish the SCTP connection between the first base station device and the backhaul base station based on the first configuration information indicating whether to use an independent core network session to establish the interface.

[0149] The first base station device sends an interface establishment request or a base station configuration update message to a neighboring base station through a first base station inter-request message. The first base station inter-request message carries at least one of the following: the physical cell identifier of the first base station device, the frequency point of the cell managed by the first base station, the bandwidth of the cell managed by the first base station, the cell identifier of the cell managed by the first base station, mobile base station indication information, and first time information. The mobile base station indication information is used to indicate that the first base station device is a base station entity in the mobile access device. The first time information indicates the duration of the interface existence. The first time information is configured by the network management system or estimated based on the dwell time of the first terminal device or the first base station device in the overlapping range of the neighboring base stations. If the first time information is not carried, it means that the interface can exist indefinitely.

[0150] After receiving the inter-base station request message, the neighboring base station saves the information carried in the message, including the physical cell identifier of the first base station device, the frequency point of the cell managed by the first base station, the bandwidth of the cell managed by the first base station, the cell identifier of the cell managed by the first base station, the mobile base station indication information, and the first time information. It then generates an inter-base station response message. If the neighboring base station is a mobile base station, it can generate an inter-base station rejection message or an inter-base station response message according to the configuration. The configuration is set by the network management system to determine whether a direct interface can be established between mobile base stations.

[0151] The first base station response message includes at least one of the following: the physical cell identifier of the neighboring base station entity, the frequency of the cell managed by the neighboring base station, the bandwidth of the cell managed by the neighboring base station, and the cell identifier of the cell managed by the neighboring base station; the first base station rejection message includes a rejection reason value, which is at least one of the following: base station type not permitted, mobile base station not supported.

[0152] After receiving the response message between the two base stations, the first base station device completes the process of establishing the interface between the two base stations. At the same time, it configures the neighbor cell relationship with the neighboring cell and completes the reporting to the network management system. Before sending the response message between the two base stations, the neighboring base station establishes the neighbor cell relationship with the first base station device. The neighbor cell relationship includes the physical cell identifier of the first base station device, the frequency point of the cell managed by the first base station, the bandwidth of the cell managed by the first base station, the cell identifier of the cell managed by the first base station, the mobile base station indication information, and the first time information.

[0153] When the first base station request message carries the first time information, the neighboring base station or the first base station device starts a timer. The timer length is the first time. When the timer expires, the neighboring base station or the first base station device can trigger the release process of the interface between the neighboring base station and the first base station device, and delete the neighbor cell relationship between them.

[0154] The interface configuration parameters of the first base station equipment and the neighboring base station can also be obtained by the neighboring base station or the first base station equipment through the core network. The neighboring base station can request the first base station equipment from the core network through the first core network message. The first core network message includes at least one of the following: the base station identifier of the first base station equipment, the tracking area identifier selected by the first base station equipment, the cell identifier of the first base station, the base station identifier of the neighboring base station, the tracking area identifier of the neighboring base station, and the inter-base station interface address request indication.

[0155] The neighboring base station receives a second core network message from the core network to obtain the second configuration information of the first base station equipment. The second configuration information includes the mobile base station indication information of the first base station and the Xn interface address information of the first base station. The Xn interface address information includes at least one of one or more transport layer address information, one or more IP-Sec transport layer addresses, one or more GTP transport layer addresses, and one or more SCTP transport layer addresses.

[0156] After the first terminal device switches to the neighboring base station, it triggers the second base station device in the mobile access device to establish a connection with the core network. After the switch is completed, the first base station device sends a first message to the core network. The first message is sent by the base station to the core network for the deletion of the interface instance. If successful, the process deletes the existing application layer configuration data in both the base station and the core network nodes.

[0157] Upon receiving a message from the first core network, the core network should respond with a message from the third core network. Upon receiving the message from the third core network, the first base station equipment should initiate the removal of the TNL associations in the core network, and may remove all resources associated with that interface instance. The core network can then delete all resources associated with that interface instance. When using shared base station and core network interface signaling to broadcast multiple cell IDs for network sharing, the inter-base station messages and inter-base station messages should include an interface instance indication to identify the corresponding interface instance.

[0158] If the first terminal device needs to return to the first backhaul base station during the handover process, the interface between the first base station device and the core network will be suspended.

[0159] The first base station device sends a second core network message. The second core network message is used to suspend the signaling and data of the interface between the first base station device and the core network. After the core network receives the second core network message, it sends a fourth core network message. During the suspension period, at least one of the following is suspended: the data of the base station and / or the core network, other signaling except for the fifth core network signaling, user context information, and user-related logical interface connections on the interface. They are not transmitted to the other node through the logical interface.

[0160] After the first terminal device reconnects to the first backhaul base station, it triggers the first base station device to initiate a fifth core network message, and the first base station device restores the user context and data and signaling transmission between the first base station and the core network.

[0161] This application embodiment also provides another mobile access device architecture and its connected core network equipment and backhaul equipment, wherein: the mobile access device MWAB includes a first base station equipment WAB-gNB and a first terminal equipment WAB-MT, wherein WAB-MT is connected to core network CN1 and PLMN is 1, while WAB-gNB is connected to core network CN2 and PLMN is 2, and BH gNB2 is a base station used to connect to the mobile access device. Based on the above mobile access device architecture and its connected core network equipment and backhaul equipment, this embodiment describes an initial connection process of the mobile device;

[0162] Step 1: MWAB consists of two entities: MWAB-MT and MWAB-gNB; MWAB-MT supports all UE functions and communication with BH gNB2; MWAB-gNB supports 5G functions.

[0163] Step 2, the MWAB-MT sends user capability indication information to the AMF (Access and Mobility Management Function) 1 / SMF (Session Management Function) 1. The user capability indication information includes at least: MWAB indication information and multiple bearer support indication. The MWAB indication information is used to indicate that the terminal supports MWAB. The multiple bearer support indication indicates that the MWAB-MT can be configured with at least two bearers to carry different NG interfaces during the handover process.

[0164] Step 3: AMF1 / SMF1 sends the user capabilities of MWAB-MT to BH gNB2; BH gNB2 is the backhaul base station of MWAB-MT, and BH gNB2 establishes an RRC connection with MWAB-MT.

[0165] Step 4: MWAB-MT sends a NAS (Non-Access Stratum) message to AMF1 / SMF1 to notify AMF1 / SMF1 to establish at least one session bearer, including the QoS (Quality of Service) requirements used by the session bearer, one of which is used to carry signaling for the NG interface (interface between the radio access network and the 5G core network).

[0166] Step 5: AMF1 / SMF1 establishes two PDU (Protocol Data Unit) sessions with BH gNB2. PDU session #1 is used for signaling of the NG interface between MWAB-MT and AMF2 / SMF2; AMF2 / SMF2 is used to establish signaling and data between MWAB-gNB and AMF2 / SMF2.

[0167] Step 6: BH gNB2 configures two DRBs for MWAB-MT via RRC messages, and the bearer mapping for carrying NG interface signaling is mapped to one of the DRBs.

[0168] This application also provides another mobile access device architecture and its connected core network equipment and backhaul equipment, including a mobile access device (MWAB) comprising a WAB-gNB and a WAB-MT, wherein the WAB-MT is connected to the core network CN1 and PLMN is 1, while the WAB-gNB is connected to the core network CN2 and PLMN is 2, and BH gNB2 is a base station used to connect to the mobile access device. This embodiment describes the WAB-gNB connecting to the backhaul base station gNB1 via the Xn interface;

[0169] Step 1: MWAB-MT notifies the first base station device to establish a connection with the OMC, and can determine the IP address and port address of the OMC based on the location of the first terminal device, the BH gNB2 cell identifier, and the PLMN information used by AMF1 / SMF1.

[0170] Step 2: The MWAB-gNB establishes a connection with gNB1 using the IP address and port address notified by the MWAB-MT, and obtains information about the establishment and configuration of the Xn interface between gNB1 and gNB1 from the OMC; the configuration information includes the IP address and port address of gNB1, PCI and ECGI;

[0171] Step 3: MWAB-gNB establishes an SCTP connection with gNB1 based on its own IP address and port address, as well as the IP address and port address of gNB1. The SCTP connection uses the bearer established between MWAB-MT and AMF1 / SMF1.

[0172] Step 4: MWAB-gNB sends an Xn Setup Request message to gNB1. The interface setup request or interface update message includes the physical cell identifier of the first base station device: PCI=300, the frequency of the cell managed by the first base station device: F=627264, the bandwidth of the cell managed by the first base station device: 100M, the cell identifier of the cell managed by the first base station device: 1689907201, mobile base station indication information: yes, and first time information: 10 minutes.

[0173] Step 5: After receiving the Xn Setup Request message, gNB1 saves the Xn Setup Request message, which contains the physical cell identifier of the first base station device, the frequency point of the cell managed by the first base station device, the bandwidth of the cell managed by the first base station device, the cell identifier of the cell managed by the first base station device, the mobile base station indication information, and the first time information, and generates an Xn Setup Response message.

[0174] This application also provides a non-volatile storage medium, which includes a stored program, wherein the program controls the device where the non-volatile storage medium is located to execute the above-described mobile wireless device access method during runtime.

[0175] This application also provides a communication device, including a memory and a processor, wherein the processor is used to run a program stored in the memory, wherein the program executes the above-described mobile wireless device access method when it runs.

[0176] This application also provides a computer program product, including a computer program, which, when executed by a processor, provides the aforementioned mobile wireless device access method.

[0177] In the above embodiments of this application, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0178] In the above embodiments of this application, the information collected is information and data authorized by the user or fully authorized by all parties, and the collection, storage, use, processing, transmission, provision, disclosure and application of the relevant data all comply with relevant laws, regulations and standards, take necessary protective measures, do not violate public order and good morals, and provide corresponding operation entry points for users to choose to authorize or refuse.

[0179] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. The device embodiments described above are merely illustrative; for example, the division of units can be a logical functional division, and in practice, there may be other division methods. For instance, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the displayed or discussed mutual couplings, direct couplings, or communication connections may be through some interfaces; indirect couplings or communication connections between units or modules may be electrical or other forms.

[0180] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple units. Some or all of the units can be selected for the purpose of this embodiment, depending on actual needs.

[0181] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be in the form of hardware or software functional units.

[0182] If the integrated unit is sold or used as a separate product in the form of a software functional unit, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to related technologies, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods of the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as a USB flash drive, read-only memory (ROM), random access memory (RAM), portable hard drive, magnetic disk, or optical disk.

[0183] The above are merely preferred embodiments of this application. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A base station device, characterized in that, include: The first base station equipment is the base station portion of a mobile access device; the first base station equipment includes at least one cell. The first base station device sends a first inter-base station request message to a neighboring base station or sends a first core network message and / or a second core network message to the core network. The first inter-base station request message includes a set of cell information for at least one cell, mobile base station indication information, and a first time message. The mobile base station indication information is used to indicate that the first base station device is the base station portion of the mobile access device. The first time information is used to indicate the duration of the existence of the interface, neighbor cell relationship, or neighbor base station relationship. The first core network message is used to release the interface between the first base station device and the core network. The second core network message is used to suspend the interface and / or application layer data between the first base station device and the core network.

2. The base station equipment according to claim 1, characterized in that, include: The mobile access device includes at least one base station device, including the first base station device; the first base station device supports at least one of 5G or 6G air interface technologies, and different base station devices in the first base station device support the same or different air interface technologies. The first base station equipment adopts a first PLMN or a first SNPN, wherein the first PLMN and the second PLMN are the same or different, the first SNPN and the second SNPN are the same or different, and the second PLMN and the second SNPN are adopted by the first terminal equipment.

3. The base station equipment according to claim 2, characterized in that, include: The first base station device receives the establishment or recovery message sent by the first terminal device through an internal interface, and completes the establishment or recovery of the first base station device. The first terminal device is the terminal part of the mobile access device. There is an internal interface between the first base station device and the first terminal device.

4. The base station equipment according to claim 1, characterized in that, include: The cell information set includes at least one of the following: the physical cell identifier of at least one cell included in the first base station equipment, the cell frequency of at least one cell included in the first base station equipment, the cell bandwidth of at least one cell included in the first base station equipment, and the cell identifier of at least one cell included in the first base station equipment.

5. The base station equipment according to claim 1, characterized in that, include: The first base station device establishes an interface with the core network or the second backhaul base station through a session bearer established with the core network by the first terminal device. The second backhaul base station is connected to the first control plane entity or the second control plane entity of the core network. The second backhaul base station supports 5G base station functions and / or 6G base station functions.

6. The base station equipment according to claim 2, characterized in that, The first base station device receives a trigger message sent by the first terminal device. When the first base station device receives the trigger message, the first base station device establishes a first interface with the network management entity OMC according to the pre-configured transmission address information.

7. The base station equipment according to claim 1, characterized in that, include: The neighboring base stations include at least one of the base station portion of the first backhaul base station, the second backhaul base station, the third backhaul base station, and the second mobile access device. The first backhaul base station is the base station accessed by the first terminal device. The third backhaul base station is the base station adjacent to the first base station device. The third backhaul base station is not the base station accessed by the first terminal device. The second backhaul base station is the target base station for the first terminal device to switch to.

8. The base station equipment according to claim 1, characterized in that, include: The first base station device obtains the first configuration information of the neighboring base station from the network management entity OMC or by providing auxiliary information through the core network.

9. The base station equipment according to claim 5, characterized in that, The first base station device instructs the first terminal device to broadcast a message from a neighboring cell. The broadcast message includes at least one of the frequency point of the neighboring cell, the physical cell identifier of the neighboring cell, and the access control identifier of the mobile access device.

10. The base station equipment according to claim 6, characterized in that, include: The first base station device receives the measurement results of the neighboring cell reported by the first terminal device. The measurement results include at least one of the frequency point of the neighboring cell, the physical cell identifier of the neighboring cell, and the access control identifier of the mobile access device.

11. The base station equipment according to claim 10, characterized in that, include: The first base station device determines whether the neighboring cell is a mobile access device based on the measurement results, and determines whether to establish an interface with the neighboring cell based on the network management configuration. If an interface can be established, it sends a fourth core network message to the first core network.

12. The base station equipment according to claim 8, characterized in that, include: The first base station device receives a fifth core network message, which includes at least one of the following: the IP address, SCTP address, port address, and cell identifier of the neighboring cell.

13. The base station equipment according to claim 1, characterized in that, include: Upon receiving a third core network message, the first base station device initiates the removal of the TNL association of the core network entity. The third core network message is a reply from the core network after receiving the first core network message.

14. The base station equipment according to claim 5, characterized in that, include: The first base station device obtains the first configuration information of the neighboring base station from the network management entity OMC. The first configuration information includes at least one of the following: transmission address information, parameter configuration information, and indication information on whether to use an independent core network session to establish an interface. The parameter configuration information includes at least one of the following: the physical cell identifier (PCI) of the cell, frequency point information, cell identifier, base station identifier, and neighbor cell information.

15. The base station equipment according to claim 8, characterized in that, The first base station device selects one of the first session bearer and the second session bearer from the indication information in the first configuration information regarding whether to use an independent core network session to establish an interface, in order to establish an SCTP connection between the first base station device and the neighboring base station.

16. The base station equipment according to claim 1, characterized in that, The first inter-base station request message includes: Any message from the following: XN SETUP REQUEST, NG-RAN node Configuration Update, S-NODE ADDITIONREQUEST, S-NODE MODIFICATION REQUEST, 6G base station inter-interface establishment request message, 6G radio device inter-configuration update, 5G / 6G base station inter-interface establishment request message, and 5G / 6G radio device inter-configuration update.

17. The base station equipment according to claim 14, characterized in that, The first base station device sends an interface establishment request message and / or a base station configuration update message to the neighboring base station through the first base station inter-request message. If the first base station inter-request message does not contain first time information, it indicates that the interface exists permanently. The first time information is configured by the network management system or determined based on the dwell time of the first terminal device or the first base station device within the overlapping range of the neighboring base station.

18. The base station equipment according to claim 1, characterized in that, The first base station device sends a first inter-base station request message to the neighboring base station. When the neighboring base station receives the first inter-base station request message, it saves the first inter-base station request message and generates a first inter-base station response message. When the neighboring base station is a mobile base station, it generates a first inter-base station rejection message or a first inter-base station response message according to preset configuration information. The preset configuration information is used to indicate whether a direct interface can be established between mobile base stations.

19. The base station equipment according to claim 18, characterized in that, The first base station device receives a first base station response message or a first base station rejection message sent by a neighboring base station. The first base station response message includes at least one of the following: a cell information set of at least one cell, mobile base station indication information, and a first time message. The first base station rejection message includes at least one of the following: a rejection reason value. The rejection reason value includes at least one of the following: the base station type is not permitted or does not support mobile base stations.

20. The base station equipment according to claim 19, characterized in that, The first inter-base station response message includes: Any one of the following messages: XN SETUP RESPONSE, NG-RAN node Configuration Update ACKNOWLEDGE, S-NODEADDITION REQUEST ACKNOWLEDGE, S-NODE MODIFICATIONREQUEST ACKNOWLEDGE, 6G base station inter-interface establishment response message, 6G radio device inter-configuration update confirmation message, 5G / 6G base station inter-interface establishment response message, and 5G / 6G radio device inter-configuration update confirmation message.

21. The base station equipment according to claim 19, characterized in that, The first base station rejection message includes any one of the following: XNSETUP FAILURE, NG-RAN node Configuration FAILURE, S-NODEADDITION REQUEST FAILURE, S-NODE MODIFICATION REQUEST FAILURE, 6G base station inter-interface establishment rejection, 6G radio device inter-configuration update rejection message, 5G / 6G base station inter-interface establishment rejection message, and 5G / 6G radio device inter-configuration update rejection message.

22. The base station equipment according to claim 18, characterized in that, When the first base station device receives the inter-base station response message, the first base station device completes the process of establishing the interface between the two base stations, and after configuring the neighbor cell relationship with the neighboring base station, it reports to the network management entity. The neighboring base station establishes the neighbor cell relationship with the first base station device before sending the inter-base station response message. The neighbor cell relationship includes the physical cell identifier of the first base station, the frequency point of the cell managed by the first base station, the bandwidth of the cell managed by the first base station, the cell identifier of the cell managed by the first base station, the mobile base station indication information, and the first time information.

23. The base station equipment according to claim 18, characterized in that, If the first time information is carried in the first base station request message, the first base station device starts a timer. If the timer exceeds a first duration, the first base station device triggers the release process of the interface between the neighboring base station and the first base station device, and deletes the neighbor cell relationship between the neighboring base station and the first base station device.

24. The base station equipment according to claim 1, characterized in that, The first base station device sends a first core network message to the core network. The first core network message includes at least one of the following: the base station identifier of the first base station device, the tracking area identifier selected by the first base station device, the cell identifier of the first base station, the base station identifier of the neighboring base station, the tracking area identifier of the neighboring base station, and an interface address request indication between the first base station device and the neighboring base station.

25. The base station equipment according to claim 1, characterized in that, The neighboring base station receives the second core network message from the core network and obtains the second configuration information of the first base station device from the second core network message. The second configuration information includes: mobile base station indication information of the first base station device and Xn interface address information of the first base station device. The Xn interface address information includes at least one of the following: one or more transport layer address information, one or more IP-Sec transport layer addresses, one or more GTP transport layer addresses, and one or more SCTP transport layer addresses.

26. The base station equipment according to claim 2, characterized in that, When the first terminal device switches to the neighboring base station, the second base station device in the mobile access device is triggered to establish a connection with the core network. After the switch is completed, the first base station device sends a first message to the core network. The first message is sent by the base station to the core network for the deletion of the interface instance. If successful, the existing application layer configuration data in both the base station and the core network nodes is deleted.

27. The base station equipment according to claim 1, characterized in that, Upon receiving a message from the third core network, the first base station device initiates the removal of the TNL association of the core network, removing all resources associated with the interface.

28. The base station equipment according to claim 26, characterized in that, If the first terminal device returns to the first backhaul base station during the handover process, the first base station device suspends the interface.

29. The base station equipment according to claim 1, characterized in that, The first base station device sends a second core network message to the core network, which is used to suspend signaling and data at the interface between the base station device and the core network.

30. The base station equipment according to claim 25, characterized in that, The first base station device sends a second core network message to the core network. When the core network receives the second core network message, it sends a fourth core network message to the first base station device. The fourth core network message indicates that during the period when the signaling and data of the interface between the base station device and the core network are suspended, at least one of the following is suspended: the signaling and data of the interface between the base station device and the core network, other signaling besides core network signaling, user context information, and user-related logical interface connections on the interface. Furthermore, no transmission occurs between the base station device and the core network through the logical interface.

31. The base station equipment according to claim 12, characterized in that, When the first terminal device returns to the first backhaul base station during the handover process, the first base station device sends a fifth core network message to the core network. The fifth core network message indicates that the first base station device has resumed the transmission of user context, signaling and data of the interface between the first base station device and the core network.

32. A terminal device, characterized in that, include: The first terminal device is a terminal part of a mobile access device. The first terminal device supports at least some terminal functions. The first terminal device supports at least one wireless access technology among 4G access technology, 5G access technology, 6G access technology, and NTN access technology. The first terminal device supports at least RRC connection mode. The first terminal device establishes an IP connection through the wireless access technology as the backhaul link of the first base station device; the first terminal device receives a handover command sent by the network and switches to the target cell.

33. The terminal device according to claim 32, characterized in that, The first terminal device uses a second PLMN or a second SNPN to provide IP connection. The first PLMN and the second PLMN may be the same or different, and the first SNPN and the second SNPN may be the same or different.

34. The terminal device according to claim 32, characterized in that, The first terminal device communicates with the first base station device through an interface; the first terminal device sends an establishment or recovery message to the first base station device to complete the establishment or recovery of the first base station device.

35. The terminal device according to claim 32, characterized in that, The first terminal device establishes at least one session bearer with the core network through the second backhaul base station. The second backhaul base station is connected to the first control plane entity of the first core network or the second control plane entity of the first core network. The second backhaul base station supports 5G base station functions, 6G base station functions, and NTN functions.

36. The terminal device according to claim 32, characterized in that, When the first terminal device sends a trigger message to the first base station device, and the first base station device receives the trigger message, the first base station device establishes a first interface with the network management entity OMC according to the pre-configured transmission address information.

37. The terminal device according to claim 32, characterized in that, The first terminal device receives a broadcast message from a neighboring cell indicated by the first base station device. The broadcast message includes at least one of the frequency point of the neighboring cell, the physical cell identifier of the neighboring cell, and the access control identifier of the mobile access device.

38. The terminal device according to claim 32, characterized in that, The first terminal device establishes at least one session bearer with the core network, or the first terminal device switches to the second backhaul base station. The second backhaul base station is connected to the first control plane entity of the core network, or connected to the second control plane entity of the core network. The second backhaul base station is the base station that the first terminal device needs to access after switching.

39. The terminal device according to claim 32, characterized in that, The first terminal device sends a trigger message to the first base station device. The trigger message is used to trigger the first base station device to establish a first interface with the network management entity OMC through the first session bearer according to the pre-configured transmission address information.

40. The terminal device according to claim 39, characterized in that, The first interface is used by the first base station device to obtain the first configuration information of neighboring base stations from the network management entity OMC. The first configuration information includes at least one of the following: transmission address information, parameter configuration information, and indication information on whether to use an independent core network session to establish an interface. The parameter configuration information includes at least one of the following: the physical cell identifier (PCI) of the cell, frequency point information, cell identifier, base station identifier, and neighbor cell information. The neighboring base stations include: a first backhaul base station, a second backhaul base station obtained in the handover scenario, and a third backhaul base station. The first backhaul base station is the base station accessed by the first terminal device, and the third backhaul base station is a base station adjacent to the first base station device. The third backhaul base station is not the base station accessed by the first terminal device.

41. The terminal device according to claim 40, characterized in that, When the first terminal device switches to the neighboring base station, it triggers the second base station device in the mobile access device to establish a connection with the core network. After the switch is completed, the first base station device sends a first message to the core network. The first message is sent by the base station to the core network for the deletion of the interface instance. If successful, the existing application layer configuration data in the first base station device and the core network are deleted.

42. The terminal device according to claim 32, characterized in that, During the handover process, the first terminal device returns to the first backhaul base station, triggering the first base station device's hangup interface.

43. The terminal device according to claim 32, characterized in that, During the handover process, the first terminal device returns to the first backhaul base station, triggering the first base station device to send a fifth core network message to the core network. The fifth core network message indicates that the first base station device has restored the transmission of user context, signaling, and data at the interface between the first base station device and the core network.

44. A terminal device, characterized in that, Obtain wireless access services from a first base station device or mobile access device, wherein the wireless access includes at least one of 4G, 5G, and 6G; support at least one of RRC states, namely RRC connected state, RRC idle state, and RRC inactive state, in the first base station device or mobile access device; receive RRC messages from the first base station device or mobile access device, and switch or redirect from the first cell to the second cell or the second base station device.

45. The terminal device according to claim 44, characterized in that, The terminal device receives services from a mobile access device, a first base station device, or a second base station device. The terminal device does not recognize the first terminal device. The second base station device is a base station device supported by the mobile access device, and both have an interface with the first terminal device.

46. ​​The terminal device according to claim 44, characterized in that, The terminal device obtains broadcast messages or transmits and receives wireless signals from the cell belonging to the first base station device; the wireless signals include at least one of 4G signaling and data, 5G signaling and data, and 6G signaling and data.

47. The terminal device according to claim 44, characterized in that, The terminal device completes the connection with the core network or data transmission and reception through the connection established between the mobile access device, the first base station device, or the second base station device and the core network.

48. The terminal device according to claim 44, characterized in that, When the terminal device is in RRC idle state, it supports cell reselection or cell selection between cells or within cells managed by the base station equipment of ordinary cells or mobile access devices.

49. The terminal device according to claim 44, characterized in that, When the terminal device is in RRC inactive, it supports cell reselection or cell selection between cells or within cells belonging to the base station equipment of a normal cell or mobile access device.

50. The terminal device according to claim 44, characterized in that, Receive RRC messages from the first base station device to switch or redirect from the first cell to the second cell or the second base station device.

51. A mobile access system, characterized in that, Provides wireless access links for terminal devices and connects to the 5GC that provides services to terminal devices via IP connections provided by backhaul PDU sessions; The mobile access system includes: a first terminal device and at least one base station device, wherein the base station device includes at least: a first base station device; the first terminal device supports some or all user equipment (UE) functions; the mobile access system is deployed on a moving or stationary object to provide services to terminal devices located inside or outside the object; the first terminal device is the terminal portion of the mobile access system, the first terminal device supports at least some terminal functions, the first terminal device supports at least one of 4G, 5G, 6G, and NTN wireless access technologies, and the first terminal device supports at least RRC connection mode; the first terminal device establishes an IP connection as the backhaul link of the first base station device; the first terminal device receives a handover command from the network and switches to the target cell.

52. The mobile access system according to claim 51, characterized in that, The mobile access system sends a first inter-base station request message to a neighboring base station or sends a first core network message and / or a second core network message to the core network through the first base station device. The first inter-base station request message includes a cell information set of at least one cell, mobile base station indication information, and a first time message. The mobile base station indication information is used to indicate that the first base station device is a base station component of the mobile access system. The first time information is used to indicate the duration of the existence of the interface, neighbor cell relationship, or neighbor base station relationship; The first core network message is used to release the interface between the first base station device and the core network; the second core network message is used to suspend the interface between the first base station device and the core network and / or application layer data.

53. A method for accessing mobile wireless devices, characterized in that, The method, applied to a first base station device, includes: sending a first inter-base station request message to a neighboring base station or sending a first core network message and / or a second core network message to the core network, wherein the first inter-base station request message includes a cell information set of at least one cell, mobile base station indication information, and a first time message; the mobile base station indication information is used to indicate that the first base station device is a base station portion of a mobile access device; the first time information is used to indicate the duration of the existence of an interface, a neighboring cell relationship, or a neighboring base station relationship; the first core network message is used to release the interface between the first base station device and the core network; and the second core network message is used to suspend the interface and / or application layer data between the first base station device and the core network.

54. A non-volatile storage medium, characterized in that, The non-volatile storage medium includes a stored program, wherein, when the program is executed, it controls the device containing the non-volatile storage medium to perform the mobile wireless device access method according to any one of claims 53.

55. A communication device, characterized in that, include: A memory and a processor, the processor being configured to run a program stored in the memory, wherein the program, when executed, performs the mobile wireless device access method according to any one of claims 53.

56. A computer program product, comprising a computer program, characterized in that, When the computer program is executed by a processor, it is the mobile wireless device access method according to any one of claims 53.

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