Method and apparatus for synchronization reference source selection
AssigneeLenovo (Beijing) Limited
InventorsJie Hu, Jing Han, Haiming Wang, Lianhai Wu, Xiaodong Yu, Zhennian Sun
Life of this patent
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Abstract
Synchronization reference source selection may be used to support advanced services of NR V2X. One method may be performed by a user equipment (UE) in a wireless network. The method includes: broadcasting group information for identifying a wireless communication group including the UE; and broadcasting a special synchronization signal identification for identifying the UE as a synchronization reference source in the wireless communication group.
Claims18
A method performed by a user equipment (UE) in a wireless network, the method comprising:
- receiving, from a base station, information indicating a special synchronization signal identifier that is used to indicate a particular UE as a synchronization reference source in a wireless communication group having a highest priority;
- broadcasting group information comprising a group identifier (ID) for identifying the wireless communication group including the UE, wherein the wireless communication group comprises a plurality of UEs, and each UE of the plurality of UEs has a corresponding unique identifier;
- and
- broadcasting the special synchronization signal identifier indicating that the UE is the synchronization reference source in the wireless communication group having the highest priority.
A method performed by a user equipment (UE) in a wireless network, which is a member of a wireless communication group, the method comprising:
- receiving, from a base station, information indicating a special synchronization signal identifier that is used to indicate a particular UE as a synchronization reference source in the wireless communication group having a highest priority;
- selecting the synchronization reference source by using the special synchronization signal identifier and group information, wherein the wireless communication group comprises a plurality of UEs, and each UE of the plurality of UEs has a corresponding unique identifier,
- wherein the special synchronization signal identifier indicates a leader of the wireless communication group and the group information identifies the wireless communication group.
A user equipment (UE) in a wireless network, comprising:
- at least one memory;
- and
- at least one processor coupled with the at least one memory and configured to cause the UE to:
- receive, from a base station, information indicating a special synchronization signal identifier that is used to indicate a particular UE as a synchronization reference source in a wireless communication group having a highest priority;
- determine group information comprising a group identifier (ID) for identifying the wireless communication group including the UE, wherein the wireless communication group comprises a plurality of UEs, each UE of the plurality of UEs has a corresponding unique identifier;
- and
- broadcast the special synchronization signal identifier and the group information.
A user equipment (UE) in a wireless network, which is a member of a wireless communication group, the UE comprising:
- at least one memory;
- and
- at least one processor coupled with the at least one memory and configured to cause the UE to:
- receive, from a base station, information indicating a special synchronization signal identifier that is used to indicate a particular UE as a synchronization reference source in a wireless communication group having a highest priority;
- detect presence of the special synchronization signal identifier and presence of group information comprising a group identifier (ID), wherein the wireless communication group comprises a plurality of UEs, each UE of the plurality of UEs has a corresponding unique identifier;
- and
- select a synchronization reference source by using the special synchronization signal identifier and the group information,
- wherein the special synchronization signal identifier indicates a leader of the wireless communication group and the group information identifies the wireless communication group.
Dependencies are inferred from the claim text.