CN-122002452-A - Terminal equipment, base station equipment and mobile access system in mobile access equipment

Abstract

The application discloses a terminal device, a base station device and a mobile access system in mobile access equipment. The terminal equipment comprises first terminal equipment, wherein the first terminal equipment is a terminal part in mobile access equipment, the first terminal equipment supports at least one of a Radio Resource Control (RRC) connection state, an RRC idle state and an RRC inactive state, the first terminal equipment receives first access control information and/or second access control information and/or an access cell restriction list sent by a network through broadcast information or RRC information, and the first terminal equipment determines that the network is forbidden or allowed to access a target cell or determines a target cell supporting RRC trigger connection reestablishment of the first terminal equipment. The application solves the technical problem that the deployment requirement of the low-cost mobile access equipment cannot be met because the protocol does not clearly determine how the mobile access equipment does not support the multi-hop capability.

Inventors

• XU SEN
• FU XIANGYUN
• Xin Jincan
• XU HUA
• DONG ZHE

Assignees

• 中电信智能网络科技有限公司

Dates

Publication Date

20260508

Application Date

20241108

Claims (20)

1. 1. A terminal device in a mobile access device, comprising a first terminal device, wherein, The first terminal equipment supports at least one of a Radio Resource Control (RRC) connection state, an RRC idle state and an RRC inactive state; The first terminal equipment receives first access control information and/or second access control information and/or an access cell restriction list sent by a network through a broadcast message or an RRC message, wherein the first access control information comprises access control information of at least one cell and/or mobile access equipment terminal equipment control information of at least one cell, the mobile access equipment terminal equipment control information is used for prohibiting or allowing terminal equipment in the mobile access equipment to access, and the access cell restriction list is cell information or frequency point information which is allowed and/or prohibited, and the cell information comprises at least one of a cell identifier and a cell physical identifier; The first terminal device determines that the network prohibits or allows the first terminal device to access a target cell, or determines a target cell supporting RRC triggered connection reestablishment of the first terminal device.
2. 2. A terminal device in a mobile access device according to claim 1, comprising: The first access control information is set for each public land mobile network PLMN, or each independent non-public network SNPN, or all PLMNs, or all SNPN granularity.
3. 3. A terminal device in a mobile access device according to claim 1 or 2, comprising: the first terminal device supports part or all of user equipment UE functions, wherein the UE functions include at least one function of 4G, 5G, 6G.
4. 4. A terminal device in a mobile access device according to claim 1, comprising: The first terminal device establishes an Internet Protocol (IP) connection for a backhaul link of the first base station device, wherein the first base station device is a base station device in the mobile access device, a base station part in the mobile access device comprises at least one base station device of the first base station device, and the mobile access device is deployed on a mobile object or a stationary object and is used for providing service for the terminal device positioned inside or outside the object.
5. 5. A terminal device in a mobile access device according to claim 1, comprising: a first interface exists between the first terminal equipment and the first base station equipment; The first terminal equipment configures or acquires state information or parameter information or configuration information of the first base station equipment through the first interface.
6. 6. A terminal device in a mobile access device according to claim 1, comprising: and in the case that the first terminal equipment is in the RRC inactive state, the first base station equipment continuously receives and/or transmits wireless signals.
7. 7. A terminal device in a mobile access device according to claim 1, comprising: in case the first terminal device transitions from the RRC connected state to the RRC idle state, the first base station device stops receiving and/or transmitting radio signals.
8. 8. A terminal device in a mobile access device according to claim 1, comprising: the first base station device continues to receive and/or transmit wireless signals in case the first terminal device transitions from the RRC connected state to the RRC inactive state.
9. 9. A terminal device in a mobile access device according to claim 1, comprising: And triggering an RRC connection reestablishment process by the first terminal equipment under the condition that the first terminal equipment detects that the radio link establishment fails, wherein the first base station equipment stops receiving and/or transmitting the radio signal before the RRC connection reestablishment process is completed.
10. 10. A terminal device in a mobile access device according to claim 1, comprising: In case the first terminal device is handed over to the 4G base station, the first base station device stops receiving and/or transmitting wireless signals.
11. 11. A terminal device in a mobile access device according to claim 1, comprising: the network is a serving cell where the first terminal equipment is located, or a resident cell in the RRC idle state, or a neighboring cell of the serving cell, or a neighboring cell of the resident cell.
12. 12. A terminal device in a mobile access device according to claim 1, comprising: The target cell comprises a cell for sending the broadcast message or the RRC message, and at least one of a resident cell, a switching cell and a neighboring cell of the first terminal equipment in the RRC idle state; The air interface technology of the target cell is 5G or a subsequent evolution technology.
13. 13. A terminal device in a mobile access device according to claim 1, comprising: The first access control information and/or the second access control information and/or the access cell restriction list is transmitted by a broadcast message of a first base station device or by a broadcast message of a cell in a second base station, wherein, The first base station equipment is base station equipment in the mobile access equipment, and a base station part in the mobile access equipment comprises at least one base station equipment including the first base station equipment; The second base station is base station equipment in the mobile access equipment, or the second base station is not base station equipment in the mobile access equipment.
14. 14. A terminal device in a mobile access device according to claim 13, comprising: The access control information comprises at least one of network control repeater NCR support indication information, integrated access and backhaul IAB support indication information; the second access control information comprises at least one of cell prohibition indication information, cell reservation information used for current operation, cell reservation information used for future use, cell reservation information used for preset use and unified access control configuration information.
15. 15. A terminal device in a mobile access device according to claim 14, comprising: The unified access control configuration information comprises access classification information and access identification information related to the cell prohibition indication information.
16. 16. The terminal device of claim 14, wherein the first terminal device determining that the network inhibits or allows the first terminal device to access the target cell comprises: And if the first access control information and/or the second access control information and/or the access cell restriction list are/is sent by a broadcast message of the first base station device or a broadcast message of a cell in the second base station, and the first access control information comprises access control information of at least one cell and/or mobile access equipment terminal equipment control information of at least one cell, determining that the network prohibits the first terminal equipment from accessing the target cell.
17. 17. A terminal device in a mobile access device according to claim 16, comprising: And if the second access control information comprises the unified access control configuration information, the first terminal equipment ignores at least one of the cell prohibition indication information, the cell reservation information used for current operation, the cell reservation information used for future use and the cell reservation information used for preset use.
18. 18. A terminal device in a mobile access device according to claim 1, comprising: the access cell limit list is configured by operation, management and maintenance (OAM) of the network management system.
19. 19. A terminal device in a mobile access device according to claim 1, comprising: The first terminal device is configured to allow access to a cell list and/or prohibit access to a cell list; in case the OAM of the network management system is configured as a candidate list for cell reselection, the first terminal device is configured to allow access to the cell list; in the case that the OAM configuration of the network management system is not a candidate list for the cell reselection, the first terminal device is configured to reject cells in the access barring cell list as reselected cells.
20. 20. The terminal device of claim 14, wherein the first terminal device determining that the network inhibits or allows the first terminal device to access the target cell comprises: If the first terminal device is a network control repeater mobile terminal device NCR-MT or an integrated access and backhaul mobile terminal device IAB-MT, and the first access control information and/or the second access control information and/or the access cell restriction list is sent by a broadcast message of the first base station device or by a broadcast message of a cell in the second base station, and the first access control information includes the mobile access device terminal device control information, the first terminal device determines that the network prohibits the first terminal device from accessing the target cell.

Description

Terminal equipment, base station equipment and mobile access system in mobile access equipment Technical Field The present application relates to the field of wireless communication technologies, and in particular, to a terminal device, a base station device, and a mobile access system in a mobile access device. Background In the fifth generation mobile communication technology (5th Generation Mobile Communication Technology,5G) system of the third generation partnership project (3rd Generation Partnership Project,3GPP), a variety of access devices supporting extension are added, which are integrated access and Backhaul (INTEGRATED ACCESS AND Backhaul) devices introduced by R16 and Network Control Repeater (NCR) devices introduced by R18, respectively. The IAB is characterized in that IAB is introduced in release 16 of 3GPP 5G, so that a base station can provide wireless access and wireless backhaul connection for equipment, and a wired backhaul with higher installation cost is not needed. The IAB refers to using a portion of the access spectrum as a backhaul. 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, which will significantly increase the deployment cost. One major factor contributing to this increase in cost is the deployment of the optical fibers that need to be installed underground. Part of the radio spectrum of the IAB is used for backhaul connections of the base station instead of optical fibers, and is now an attractive solution, enabling an economically viable dense deployment. One of the main benefits of IAB is that it allows flexible and very dense deployment of New Radio (NR) cells without the need to scale up the density of the transport network. In the protocol architecture of the IAB-node, a layer 2 protocol architecture is used, that is, a Centralized entity (CU) is separated from a separation entity (DU), and as shown in fig. 1, the clock synchronization uses OTA (over the air) clock synchronization. For NCR, the technical characteristics are as follows: (1) The NCR structure consists of two main functional blocks in a repeater-NCR controlled by a wireless network 5G base station (thenextgenerationNodeB, gNB), as shown in figure 2, which are NCR-mobile terminals (NCR-MobileTerminal, MT), NCR-Fwd (NCR-forward), wherein the 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 is characterized in that DL of the C-link and DL of the IAB in the NCR are respectively characterized by C-link in transmission and reception and can be simultaneously executed or executed in a time division multiplexing (Time Division Multiplexing, TDM) mode, and UL of the C-link and UL of the IAB link can be executed in a TDM mode; (3) NCR-Fwd feature that the module amplifies and forwards UL/DL radio frequency signals (Radio Frequency Signal, RF) between the gNB and the UE over the IAB and access link. The NCR-Fwds module is implemented with two groups of patch antennas, one for the IAB link and the other 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 are operating in the same frequency band, the C-link and IAB will experience similar large-scale channel characteristics, thereby simplifying IAB control between gNB and NCR-Fwd. The above solution has some problems, for example, the IAB needs to support CU/DU separation architecture, and the serving macro base station needs to support part of core network functions, so the cost of network upgrade and the implementation cost of the IAB are high, in addition, the NCR only supports fixed deployment, and the NCR is a transparent repeater from the UE perspective, and does not support the processing capability of L2/L3. Thus, in order to support Mobile scenarios and not to upgrade the existing network 5G base station, a new coverage extension is needed, namely the Mobile WIRELESS ACCESSE NodeB (MWAB) as shown in fig. 3. The existing solutions