CN-122002447-A - Network node, method for executing node, network node and node

CN122002447ACN 122002447 ACN122002447 ACN 122002447ACN-122002447-A

Abstract

The present disclosure provides a network node, a method performed by a node in a wireless communication system, and a network node, a node. A second performed method in a wireless communication system includes receiving a first configuration message sent by a first network node, receiving a first notification message sent by the first node, and sending a second notification message to a third node, the first and second notification messages being used to notify information of a link on which the node is located.

Inventors

WANG WEIWAI
WANG HONG
XU LIXIANG

Assignees

北京三星通信技术研究有限公司
三星电子株式会社

Dates

Publication Date: 20260508
Application Date: 20250324
Priority Date: 20241106

Claims (15)

1. A method performed by a second node in a wireless communication system, comprising: receiving a first configuration message which is sent by a first network node and related to a multi-hop side uplink relay network serving first user equipment; Receiving a first notification message sent by a first node, where the first notification message is used to notify information of a link where the first node is located, and/or Sending a second notification message to a third node, wherein the second notification message is used for notifying information of a link where the second node is located; The first configuration message comprises at least one of identification information indicating a node served by the second node, path configuration information indicating one or more paths served by the second node, first notification configuration information for indicating the second node to send the second notification message, state configuration indication information for indicating a connection state of the second node, and data transmission configuration information for configuring the relay node to perform data transmission in an idle state or an inactive state; The first notification message and/or the second notification message comprises at least one of indication information of equipment type, supported hop count information, hop count information of a transmission path, relay node reselection indication information, relay node selection indication information, reconstruction failure indication information, first path interruption indication information used for indicating failure or interruption or unavailability of the transmission path, a notification message container containing notification messages sent by other relay nodes, and first auxiliary information for assisting in learning link change; wherein the first node and the second node and the third node are relay nodes in the multi-hop side uplink relay network.
2. The method of claim 1, further comprising: And sending a first auxiliary message to a first network node, wherein the first auxiliary message is used for helping the first network node to configure a transmission path serving the first user equipment and comprises at least one of the following information, namely the identification information of the node connected with the second node, the identification information of a service cell of the node connected with the second node, the identification information of a path where the second node is located, and the identification information of the first user equipment served by the second node is used for indicating the information of data termination.
3. The method of claim 1, further comprising: if the cell to which the second node is connected is different from the serving cell of the first user equipment, transmitting the second notification message, or If the cell connected with the second node is different from the service cell of the first user equipment, sending a connection reestablishment request message; The cell connected with the second node is a service cell of the relay node selected after the second node performs relay node selection or reselection, or the cell selected by the second node performs reconstruction or cell selection or cell reselection.
4. The method according to claim 1, After receiving the first notification message, at least one of the following actions is further included: Starting a first timer, wherein the first timer is used for determining the time for the second node to execute at least one action in the request of the first user equipment, such as the selection or reselection of a relay node, the reconstruction, the cell selection or reselection, the switching, the connection establishment and the connection restarting; Sending the second notification message; restoring a link, the restoring a link including at least one of reestablishment and reestablishment of the link; entering an idle state; enter an inactive state.
5. The method according to claim 1, Wherein the second notification message is sent when at least one of the following conditions is met: the second node is a relay node in the multi-hop relay network; the second node receives the first notification message; The second node is in a connected state; the second node is in an idle state or an inactive state; The second node does not complete at least one of relay node selection or reselection, reestablishment, cell selection or reselection, handover, connection establishment and connection restart before the second timer expires; the second node experiences at least one of relay node reselection or selection, reestablishment, link failure, handover, cell reselection or selection, and sidelink release.
6. The method according to claim 1, Wherein the path configuration information comprises at least one of user equipment identification information, path identification information, and/or The first notification configuration information includes at least one of time indication information for indicating a time required for the second node to wait before transmitting the second notification message, relay node behavior indication information for indicating a behavior the second node is permitted to perform, and/or The state configuration indication information includes at least one of state indication information for indicating one of a connection state, an idle state and an inactive state, cell identification information for indicating a state condition of a relay node, and/or state condition indication information for indicating a condition of the state of the relay node The data transmission configuration information includes at least one of configuration reservation indication information for indicating a configuration that the second node needs to reserve, and condition indication information for indicating a condition of the second node for data transmission.
7. The method according to claim 1, Wherein the first auxiliary information includes at least one of the following information: the identification information of the cell, the cell is selected in the cell selection process of the second node, or the cell selected in the cell reselection process, or the selected cell is rebuilt, or the cell of the relay node accessed by the second node is served, and the serving cell of the path where the second node is located; the node is selected by the second node or the node selected by the second node, and the node is failed in the side uplink; identification information of the link; Indication of the link type.
8. The method according to claim 7, Wherein the first auxiliary message is sent after at least one of the following conditions is satisfied: the service cell of the relay node selected by the second node through the relay node reselection or selection process is the same as the service cell of the first user equipment; the cell selected by the second node through the cell selection or reselection process is the same as the serving cell of the first user equipment; and the second node completes a connection establishment or connection restarting process, and serves the first user equipment in an idle state or a non-activated state.
9. A method performed by a first network node in a wireless communication system, comprising: Transmitting a first configuration message related to a multi-hop side uplink relay network serving the first user equipment to a second node; receiving a first auxiliary message sent by a second node, wherein the first auxiliary message is used for helping the first network node to configure a transmission path serving the first user equipment; The first configuration message includes at least one of identification information indicating a node served by the second node, path configuration information indicating one or more paths served by the second node, first notification configuration information for indicating the second node to send a second notification message, state configuration indication information for indicating a connection state of the second node, and data transmission configuration information for configuring the relay node to perform data transmission in an idle state or an inactive state.
10. The method of claim 9, further comprising Transmitting a second configuration message for configuring access to the multi-hop side uplink relay network to the first user equipment, wherein the second configuration message comprises at least one of the following information: First hop count information for indicating a hop count of the multi-hop-side uplink relay network serving the first user equipment; The first time information is used for indicating the time length of connection establishment or connection reestablishment or connection restarting of the first user equipment; reference time information for indicating a reference time length for the first user equipment to perform connection establishment or connection reestablishment or connection restart; first time step information for indicating a time length increase step; first time increment information for indicating information of an increase in time length.
11. The method according to claim 9, wherein the method comprises, Wherein the path configuration information comprises at least one of user equipment identification information, path identification information, and/or The first notification configuration information includes at least one of time indication information for indicating a time required for the second node to wait before transmitting the second notification message, relay node behavior indication information for indicating a behavior the second node is permitted to perform, and/or The state configuration indication information includes at least one of state indication information for indicating one of a connection state, an idle state and an inactive state, cell identification information for indicating a state condition of a relay node, and/or state condition indication information for indicating a condition of the state of the relay node The data transmission configuration information includes at least one of configuration reservation indication information for indicating a configuration that the second node needs to reserve, and condition indication information for indicating a condition of the second node for data transmission.
12. A method performed by a first user equipment in a wireless communication system, comprising: Receiving a second configuration message sent by the first network node and used for configuring access to the multi-hop side uplink relay network; starting a timer for connection establishment or connection reestablishment or connection restart; Connection establishment or connection reestablishment or connection restart is performed.
13. The method according to claim 12, Wherein the second configuration message includes at least one of the following information: First hop count information for indicating a hop count of the multi-hop-side uplink relay network serving the first user equipment; The first time information is used for indicating the time length of connection establishment or connection reestablishment or connection restarting of the first user equipment; reference time information for indicating a reference time length for the first user equipment to perform connection establishment or connection reestablishment or connection restart; first time step information for indicating a time length increase step; first time increment information for indicating information of an increase in time length.
14. The method according to claim 13, Wherein, according to the information in the second configuration message, the length of the timer is determined according to at least one of the following methods: determining based on the first hop count information and the first time information; Determining, based on the first hop count information, the reference time information, and the first time step information; and determining the reference time information and the first time increment information based on the first hop count information.
15. A first node or second node or third node or first network node or first user equipment in a wireless communication system, comprising: A transceiver for transmitting and receiving signals, and A controller coupled to the transceiver and configured to perform the method of one of the preceding claims 1-14.

Description

Network node, method for executing node, network node and node Technical Field The present application relates generally to the field of wireless communications, and more particularly to a network node, a method performed by a node, and a network node, a node. Background In order to meet the increasing demand for wireless data communication services since the deployment of 4G communication systems, efforts have been made to develop improved 5G or quasi 5G communication systems. Therefore, a 5G or quasi 5G communication system is also referred to as a "super 4G network" or a "LTE-after-system". Wireless communication is one of the most successful innovations in modern history. Recently, the number of subscribers to wireless communication services exceeds 50 billion and continues to grow rapidly. As smartphones and other mobile data devices (e.g., tablet computers, notebook computers, netbooks, e-book readers, and machine type devices) become increasingly popular among consumers and businesses, the demand for wireless data services is rapidly growing. To meet the high-speed growth of mobile data services and support new applications and deployments, it is important to improve the efficiency and coverage of the wireless interface. In a wireless network, due to the limitation of cell coverage or cell capacity, user equipment directly connected with a base station cannot obtain better service, and users far away from the base station cannot connect with the network. To address this problem, researchers have proposed multi-hop user equipment relay techniques that allow one user equipment to connect to a base station through one or more relay user equipments. One example of this technique is the multi-hop side-uplink relay (multi-hop SIDELINK RELAY) technique. Since the ue is connected to the network through a plurality of nodes, how to efficiently and quickly complete the establishment and maintenance of such connection is a problem to be solved. Disclosure of Invention The embodiment of the disclosure provides a network node, a method executed by the network node, and the network node. The technical scheme provided by the embodiment of the disclosure is as follows: the disclosed embodiments provide a method performed by a second node in a wireless communication system, comprising: Receiving a first configuration message related to a multi-hop side uplink relay network serving a first user equipment sent by a first network node, Receiving a first notification message sent by a first node, where the first notification message is used to notify information of a link where the first node is located, and/or Sending a second notification message to a third node, wherein the second notification message is used for notifying information of a link where the second node is located; The first configuration message comprises at least one of identification information indicating a node served by the second node, path configuration information indicating one or more paths served by the second node, first notification configuration information for indicating the second node to send the second notification message, state configuration indication information for indicating a connection state of the second node, and data transmission configuration information for configuring the relay node to perform data transmission in an idle state or an inactive state; The first notification message and/or the second notification message comprises at least one of indication information of equipment type, supported hop count information, hop count information of a transmission path, relay node reselection indication information, relay node selection indication information, reconstruction failure indication information, first path interruption indication information used for indicating failure or interruption or unavailability of the transmission path, a notification message container containing notification messages sent by other relay nodes, and first auxiliary information for assisting in learning link change; the first node and the second node and the third node are relay nodes in the multi-hop side uplink relay network. According to one possible embodiment of the disclosure, the method further comprises sending a first auxiliary message to a first network node, where the first auxiliary message is used for helping the first network node to configure a transmission path serving the first user equipment, and the first auxiliary message comprises at least one of identification information of a node connected with the second node, identification information of a serving cell of the node connected with the second node, identification information of a path where the second node is located, and identification information of the first user equipment served by the second node, and information indicating termination of data. According to a possible embodiment of the present disclosure, further comprising sending the second notification message, or i