CN-122002264-A - Base station device, terminal device, and mobile access system

CN122002264ACN 122002264 ACN122002264 ACN 122002264ACN-122002264-A

Abstract

The application discloses base station equipment, terminal equipment and a mobile access system. The base station equipment comprises first base station equipment, wherein the first base station equipment is a base station part in 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, 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 the first base station equipment is the base station part in the mobile access equipment, the first time information is used for indicating the existence time length of an interface or an adjacent cell relation or an adjacent base station relation, the first core network message is used for releasing the interface between the first base station equipment and the core network, and the second core network message is used for suspending the interface and/or application layer data between the first base station equipment and the core network.

Inventors

XU SEN
LIU TIEJUN
ZHENG CHENGLIN
Xin Jincan
XU HUA

Assignees

中电信智能网络科技有限公司

Dates

Publication Date: 20260508
Application Date: 20241108

Claims (20)

1. A base station device is characterized by comprising a first base station device, wherein the first base station device is a base station part in a mobile access device and 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 first time information, 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 indicating the time length of existence of an interface or an adjacent cell relation or an adjacent base station relation, the first core network message is used for releasing the interface between the first base station equipment and the core network, and the second core network message is used for suspending the interface and/or application layer data between the first base station equipment and the core network.
2. The base station apparatus according to claim 1, comprising: The mobile access equipment comprises at least one base station equipment including the first base station equipment, wherein the air interface technology supported by the first base station equipment is at least one of 5G or 6G technology, and different base station equipment in the first base station equipment supports the same or different air interface technology; the first base station device adopts a first PLMN or a first SNPN, where 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.
3. The base station apparatus according to claim 2, comprising: the first base station equipment receives the establishment or restoration message sent by the first terminal equipment through the intra-equipment interface to complete the establishment or restoration of the first base station equipment, wherein the first terminal equipment is a terminal part in the mobile access equipment, and an intra-equipment interface exists between the first base station equipment and the first terminal equipment.
4. The base station apparatus according to claim 1, comprising: The set of cell information includes at least one of a physical cell identity of at least one cell included by the first base station device, a cell frequency point of at least one cell included by the first base station device, a cell bandwidth of at least one cell included by the first base station device, and a cell identity of at least one cell included by the first base station device.
5. The base station apparatus according to claim 1, comprising: The first base station equipment establishes an interface with a core network or a 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 a first control plane entity of the core network or a second control plane entity of the core network, and the second backhaul base station supports a 5G base station function and/or a 6G base station function.
6. The base station device according to claim 2, wherein the first base station device receives a trigger message sent by the first terminal device, and in the case that the first base station device receives the trigger message, the first base station device establishes a first interface with a network management entity OMC according to preconfigured transmission address information.
7. The base station apparatus of claim 1, wherein the neighbor base station comprises 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 apparatus, the first backhaul base station being a base station to which the first terminal apparatus is connected, the third backhaul base station being a base station adjacent to the first base station apparatus, the third backhaul base station being a base station to which the first terminal apparatus is not connected, and the second backhaul base station being a target base station for handover of the first terminal apparatus.
8. The base station apparatus of claim 1, wherein the first base station apparatus obtains the first configuration information of the neighboring base station from a network management entity OMC or by providing auxiliary information through a core network.
9. The base station device of claim 5, wherein the first base station device indicates a broadcast message of a neighboring cell of the first terminal device, the broadcast message including at least one of a frequency point of the neighboring cell, a physical cell identifier of the neighboring cell, and the mobile access device access control identifier.
10. The base station apparatus of claim 6, wherein the measurement result of the neighboring cell reported by the first terminal apparatus is received by the first base station apparatus, and the measurement result includes at least one of a frequency point of the neighboring cell, a physical cell identifier of the neighboring cell, and an access control identifier of the mobile access device.
11. The base station apparatus of claim 10, wherein the first base station apparatus determines whether the attribute of the neighboring cell is a mobile access apparatus according to the measurement result, determines whether to establish an interface with the neighboring cell according to the network management configuration, and if the interface can be established, sends a fourth core network message to the first core network.
12. The base station apparatus of claim 8, comprising the first base station apparatus receiving a fifth core network message, the fifth core network message comprising at least one of an IP address, an SCTP address, a port address, and a cell identification of a neighbor cell.
13. The base station apparatus of claim 1, comprising the first base station apparatus initiating removal of TNL association for a core network entity upon receipt of a third core network message, the third core network message being in reply to the core network upon receipt of the first core network message.
14. The base station apparatus of claim 5, wherein the first base station apparatus obtains first configuration information of the neighboring base station from a network management entity OMC, the first configuration information including at least one of transmission address information, parameter configuration information, and indication information of whether to use an independent core network session establishment interface, wherein the parameter configuration information includes at least one of physical cell identity PCI, frequency point information, cell identity, base station identity, and neighboring cell information of a cell.
15. The base station apparatus of claim 8, wherein the first base station apparatus selects one of a first session bearer and a second session bearer according to the indication information of whether to use an independent core network session setup interface in the first configuration information, so as to set up an SCTP connection of an interface between the first base station apparatus and the neighboring base station.
16. The base station apparatus of claim 1, wherein the first inter-base station request message comprises: XN SETUP REQUEST、NG-RAN node Configuration Update、S-NODE ADDITIONREQUEST、S-NODE MODIFICATION REQUEST、6G The method comprises the steps of establishing any one message of an interface establishment request message between base stations, a configuration update between 6G wireless devices, an interface establishment request message between 5G/6G base stations and a configuration update between wireless devices in 5G/6G.
17. The base station device according to claim 14, wherein the first base station device sends an interface setup request message and/or a base station configuration update message to the neighboring base station via the first inter-base station request message, wherein the interface is indicated to be permanently present if no first time information is included in the first inter-base station request message, wherein the first time information is determined by a network management configuration or according to a residence time length of the first terminal device or the first base station device within an overlapping range of the neighboring base station.
18. The base station apparatus according to claim 1, wherein the first base station apparatus transmits the first inter-base station request message to the neighboring base station, wherein the first inter-base station request message is stored and a first inter-base station response message is generated in case the neighboring base station receives the first inter-base station request message, and wherein the first inter-base station reject message or the first inter-base station response message is generated according to preset configuration information indicating whether a direct interface can be established between mobile base stations in case the neighboring base station is a mobile base station.
19. The base station apparatus of claim 18, wherein the first base station apparatus receives a first inter-base station response message or a first base station rejection message sent by a neighboring base station, wherein the first inter-base station response message includes at least one of a set of cell information for at least one cell, mobile base station indication information, and a first time message, wherein the first inter-base station rejection message includes at least one of a reject cause value including at least one of a base station type disallowing or not supporting a mobile base station.
20. The base station apparatus of claim 19, wherein the first inter-base station response message comprises: XN SETUP RESPONSE、NG-RAN node Configuration Update ACKNOWLEDGE、S-NODE ADDITION REQUEST ACKNOWLEDGE、S-NODE MODIFICATIONREQUEST ACKNOWLEDGE、6G Any one message of an inter-base station interface establishment response message, a 6G wireless device inter-configuration update confirmation message, a 5G/6G inter-base station interface establishment response message and a 5G/6G wireless device inter-configuration update confirmation message.

Description

Base station device, terminal device, and mobile access system Technical Field The present application relates to the field of communications technologies, and in particular, to a base station device, a terminal device, and a mobile access system. Background A variety of extended access devices are added to the 3gpp 5g system, which are an IAB (INTEGRATED ACCESS AND Backhaul) introduced by R16 as shown in fig. 1 and an NCR (Network-Controlled Repeaters, network controlled repeater) device of R18 as shown in fig. 2, respectively. the IAB is characterized by the fact that 3gpp 5g release 16 introduces an IAB to enable a base station to provide wireless access and wireless backhaul connection for a device, so that a more costly installation of a wired backhaul is not required, and the IAB refers to using a portion of the access spectrum as a backhaul, where the IAB network architecture includes an a-architecture including AMF/UPF (access and mobility management function/user plane function), gNB (base station), IAB-node (integrated access and backhaul node), and b-architecture including MME/SPGW (mobility management entity/service package gateway), MENB (primary base station), and SgNB (secondary base station). 5G promises high bandwidth capability from high frequencies in the millimeter wave band. There is a problem in that the coverage of the high frequency deployment is limited and a denser base station layout is required. This will significantly increase deployment costs. One major factor contributing to this cost is the deployment of the optical fibers that need to be installed underground. An IAB in which part of the radio spectrum is used for backhaul connections of the base station instead of optical fibers. For NCR, the technical characteristics are that 1) a repeater-NCR controlled by a wireless network gNB in an NCR structure 5G is composed of two main functional blocks, as shown in figure 2, wherein the NCR-MT (NCR-mobile terminal) NCR-Fwd (NCR-forwarding) NCR-MT module uses a 5G (NR) network Uu interface to establish communication with the gNB through a C-link control link, and can complete exchange side control information (such as beam forming, UL/DL switching, on/off switching and NCR-Fwd module management). The NCR-MT module performs its duties by supporting a subset of the UE functions by providing for exchange of gNB control and status signaling through C-link. 2) The C-link and IAB in the NCR of the C-link characteristics can be simultaneously executed or executed in a TDM way by the DL of the C-link and the DL of the IAB link respectively in the transmission and the reception, the UL of the C-link and the UL of the IAB link can be simultaneously executed in a TDM way, the gNB simultaneously controls multiplexing when considering the NCR capability, the UL of the C-link and the UL in the IAB are simultaneously transmitted depending on the NCR capability, and 3) the NCR-Fwd characteristics are that the module amplifies and forwards the UL/DL RF signals between the gNB and the UE through the IAB and the access link in the NCR. The NCR-Fwds module passes through two sets of patch antennas, one set for the IAB link and the other set for the access link and one RF amplifier. The NCR-Fwd module is mainly focused on signal amplification and (analog) beamforming, without advanced digital receiver or transmitter chains, where the performance requirements of the beamforming antenna are not as high as those of the macro base station or IAB node antenna, and cost effectiveness and ease of manufacturing are important factors for its priority. 4) Both NCR-MT and NCR-Fwd may operate in the same or different frequency bands, wherein the NCR-MT must operate within the band forwarded by NCR-Fwd using at least one carrier, taking 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, so that there are some problems in simplifying the control of IAB between gNB and NCR-Fwd, for example, IAB needs to support CU/DU separation architecture, and serving macro base stations need to support part of core network functions, so that the cost of network upgrade and IAB are high, in addition, NCR only supports fixed deployment, and NCR is a transparent repeater from the UE perspective, and does not support L2/L3 processing capability. Thus, in order to support mobile scenarios and not require upgrades to existing network 5G base stations, a new coverage extension scheme is required, such as the WAB device shown in fig. 3. The existing scheme at present has the problems that whether the interface between mobile base stations is allowed to be established cannot be guaranteed, whether the mobile base stations are allowed to be established or not is determined according to various factors because the mobile base stations possibly have limited residence time in an area, so that the inter-station interface is requ