CN-122002404-A - Method for node execution in wireless communication system and node

CN122002404ACN 122002404 ACN122002404 ACN 122002404ACN-122002404-A

Abstract

According to one aspect of the present disclosure, there is provided a method performed by a second node in a wireless communication system, comprising receiving a first message sent by a first node requesting a reference configuration of a secondary cell group, and sending the reference configuration of the secondary cell group to the first node.

Inventors

WANG WEIWAI
LI FUYUAN
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: 20241107

Claims (12)

1. A method performed by a second node in a wireless communication system, comprising: determining reference configuration information for configuring a secondary cell group of the user equipment, Sending a second message to the first node, wherein the second message is used for providing configuration information of the user equipment; The second message comprises at least one of identification information of a first user equipment, reference configuration information of the auxiliary cell group, first indication information used for indicating release of the auxiliary cell group and first difference configuration information configured by the user equipment; The user equipment is configured as a dual connection.
2. The method of claim 1, further comprising Receiving a first message sent by a first node, wherein the first message is used for preparing configuration information of user equipment, and the first message comprises at least one of the following information: identification information of the second user equipment; Second indication information for indicating a purpose of the first message; third indication information for indicating that the reference configuration is requested; first reference configuration information, and For generating auxiliary information of the reference configuration.
3. The method according to claim 1, Wherein the determining the reference configuration information for configuring the secondary cell group of the user equipment is determined based on the first message.
4. The method according to claim 1, Wherein the first node and the second node are respectively the following nodes: a source master node serving the user equipment and a source slave node serving the user equipment, or A source master node serving the user equipment and a candidate master node serving the user equipment, or A candidate master node serving the user equipment and a source slave node serving the user equipment.
5. The method according to claim 1, The second message further comprises at least one of the following information, namely the reference configuration of the main cell group, the reference configuration of the main cell, the reference configuration of the main and auxiliary cells, and the reference configuration of all cells.
6. The method according to claim 2, The identification information of the second user equipment comprises first identification information distributed by a first node and second identification information distributed by a source auxiliary node serving the user equipment; The second indication information may be used to indicate at least one of the following types of handover: layer 3 handover, layer 1/layer 2 triggered mobility (LTM), intra-base station handover, intra-base station LTM, intra-base station hub LTM, intra-base station primary cell group LTM, intra-base station hub LTM, inter-base station handover, inter-base station hub LTM, inter-base station primary cell group LTM, no secondary node change handover, no secondary node change LTM, no secondary node change primary cell group LTM, no secondary node change intra-base station hub LTM, no secondary node change intra-base station primary cell group LTM, no secondary node change inter-base station LTM, inter-unit LTM of base station without secondary node change, inter-unit primary cell group LTM of base station without secondary node change, inter-primary cell group LTM of primary secondary cell change, inter-primary cell LTM of base station without primary secondary cell change, master cell group LTM in base station without master-slave cell change, master cell group LTM in centralized unit of base station without master-slave cell change, inter-base station LTM without master-slave cell change, inter-centralized unit LTM of base station without master-slave cell change, inter-base station master cell group LTM without master-slave cell change, inter-centralized unit master cell group LTM of base station without master-slave cell change; The third indication information comprises at least one of request indication information of reference configuration of a main cell group, request indication information of reference configuration of a secondary cell group, request indication information of reference configuration of all cell groups, request indication information of reference configuration of the main cell, request indication information of reference configuration of the main and secondary cells, and request indication information of reference configuration of all cells; the first reference configuration information comprises at least one of reference configuration of a main cell group, reference configuration of an auxiliary cell group, reference configuration of a main cell, reference configuration of the auxiliary cell, reference configuration of all cells, identification information of the cells and identification information of nodes; The auxiliary information comprises at least one of identification information of one or more target cells, identification information of one or more candidate cells, configuration information of a main cell group where the target cells are located, configuration information of an auxiliary cell group where the target cells are located, configuration information of a main cell group where the candidate cells are located, configuration information of an auxiliary cell group where the candidate cells are located, configuration information of a main cell group where the serving cells are located, and configuration information of an auxiliary cell group where the serving cells are located.
7. A method performed by a first node in a wireless communication system, comprising: A first message sent to a first node, the first message being for preparing configuration information of a user equipment, Receiving a second message from a second node, the second message being for providing configuration information of a user equipment; The second message comprises at least one of identification information of a first user equipment, reference configuration information of the auxiliary cell group, first indication information used for indicating release of the auxiliary cell group and first difference configuration information configured by the user equipment; The user equipment is configured as a dual connection.
8. The method according to claim 7, The first message comprises at least one of identification information of a second user equipment, second indication information for indicating the purpose of the first message, third indication information for indicating request of reference configuration, first reference configuration information and auxiliary information for generating reference configuration.
9. The method according to claim 7, Wherein the first node and the second node are respectively the following nodes: a source master node serving the user equipment and a source slave node serving the user equipment, or A source master node serving the user equipment and a candidate master node serving the user equipment, or A candidate master node serving the user equipment and a source slave node serving the user equipment.
10. The method according to claim 7, The second message further comprises at least one of the following information, namely the reference configuration of the main cell group, the reference configuration of the main cell, the reference configuration of the main and auxiliary cells, and the reference configuration of all cells.
11. The method according to claim 8, The identification information of the second user equipment comprises first identification information distributed by a first node and second identification information distributed by a source auxiliary node serving the user equipment; The second indication information may be used to indicate at least one of the following types of handover: layer 3 handover, layer 1/layer 2 triggered mobility (LTM), intra-base station handover, intra-base station LTM, intra-base station hub LTM, intra-base station primary cell group LTM, intra-base station hub LTM, inter-base station handover, inter-base station hub LTM, inter-base station primary cell group LTM, no secondary node change handover, no secondary node change LTM, no secondary node change primary cell group LTM, no secondary node change intra-base station hub LTM, no secondary node change intra-base station primary cell group LTM, no secondary node change inter-base station LTM, inter-unit LTM of base station without secondary node change, inter-unit primary cell group LTM of base station without secondary node change, inter-primary cell group LTM of primary secondary cell change, inter-primary cell LTM of base station without primary secondary cell change, master cell group LTM in base station without master-slave cell change, master cell group LTM in centralized unit of base station without master-slave cell change, inter-base station LTM without master-slave cell change, inter-centralized unit LTM of base station without master-slave cell change, inter-base station master cell group LTM without master-slave cell change, inter-centralized unit master cell group LTM of base station without master-slave cell change; The third indication information comprises at least one of request indication information of reference configuration of a main cell group, request indication information of reference configuration of a secondary cell group, request indication information of reference configuration of all cell groups, request indication information of reference configuration of the main cell, request indication information of reference configuration of the main and secondary cells, and request indication information of reference configuration of all cells; the first reference configuration information comprises at least one of reference configuration of a main cell group, reference configuration of an auxiliary cell group, reference configuration of a main cell, reference configuration of the auxiliary cell, reference configuration of all cells, identification information of the cells and identification information of nodes; The auxiliary information comprises at least one of identification information of one or more target cells, identification information of one or more candidate cells, configuration information of a main cell group where the target cells are located, configuration information of an auxiliary cell group where the target cells are located, configuration information of a main cell group where the candidate cells are located, configuration information of an auxiliary cell group where the candidate cells are located, configuration information of a main cell group where the serving cells are located, and configuration information of an auxiliary cell group where the serving cells are located.
12. A first node or a second node 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 corresponding claims 1 to 11.

Description

Method for node execution in wireless communication system and node Technical Field The present disclosure relates to wireless communication technology, and in particular, to a method performed by a node in a wireless communication system in which a UE is in a mobility situation, and each 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 order to reduce the delay of user equipment handover, a Layer 1/Layer 2triggered mobility (Layer 1/Layer 2Triggered Mobility:LTM) handover method uses underlying signaling to trigger the handover of the user equipment. In this handover method, however, a plurality of different candidate cells need to be configured for the user equipment, which results in an increase in signaling overhead. Therefore, how to reduce the signaling overhead of LTM, especially in the context of dual connectivity, 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: determining reference configuration information for configuring a secondary cell group of the user equipment, Sending a second message to the first node, wherein the second message is used for providing configuration information of the user equipment; The second message comprises at least one of identification information of a first user equipment, reference configuration information of the auxiliary cell group, first indication information used for indicating release of the auxiliary cell group and first difference configuration information configured by the user equipment; The user equipment is configured as a dual connection. According to an embodiment of the present disclosure, the method further includes receiving a first message sent by a first node, where the first message is used for preparing configuration information of a user equipment, and the first message includes at least one of the following information: identification information of the second user equipment; Second indication information for indicating a purpose of the first message; third indication information for indicating that the reference configuration is requested; first reference configuration information, and For generating auxiliary information of the reference configuration. According to an embodiment of the present disclosure, the determining the reference configuration information for configuring the secondary cell group of the user equipment is further included is determined based on the first message. According to an embodiment of the disclosure, the first node and the second node are respectively the following nodes: a source master node serving the user equipment and a source slave node serving the user equipment, or A source master node serving the user equipment and a candidate master node serving the user equipment, or A candidate master node serving the user equipment and a source slave node serving the user equipment. According to the embodiment of the disclosure, the second message further comprises at least one of reference configuration of a main cell group, reference configuration of a main cell, reference configuration of a main secondary cell and reference configuration of all cells. The embodiment of the disclosure, wherein the identification information of the second user equipment includes first identification information allocated by a first node and second identification information allocated by a source auxiliary node serving the user equipment; The second indication information may be used to indicate at least one of the following types of handover: layer 3 handover, layer 1/layer 2 triggered mobility (LTM), intra-base station handover, intra-base station LTM, intra-base station hub LTM, intra-base station primary cell group LTM, intra-base station hub LTM, inter-base station handover, inter-bas