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US 12,587,937 B2Granted
Conditional cell reconfiguration initiated by a master node
AssigneeZte Corporation
InventorsMengjie Zhang, He Huang, Jing Liu
Life of this patent
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Abstract
In wireless communication, a device may change, add, or handover between providers (e.g. nodes) of network access. This may include a conditional cell addition/change procedure initiated by a master node. In addition, successive cell addition/changes can also be performed. The conditional procedures and/or successive procedures can reduce handover interruption time and improve reliability.
Claims20
A method for wireless communication comprising:
- sending, by a master node (MN) to a first target secondary node, a secondary node (SN) addition request for a SN change from a source SN or a SN addition of the first target SN, wherein the request comprises candidate cell information for the first target SN;
- receiving, by the MN from the first target SN, a response that includes at least one candidate cell configuration;
- and
- sending, by the MN to a user equipment (UE), a radio resource control (RRC) message with the at least one candidate cell configuration and one or more execution conditions for each candidate cell to cause the UE to:
- trigger a change from the source SN to the first target SN or a SN addition of the first target SN based on a candidate cell configuration of the at least one candidate cell configuration when the one or more execution conditions for one of the candidate cells from the first target SN are met;
- and subsequently trigger a change from the first target SN to a second target SN or a SN addition of the second target SN based on another candidate cell configuration of the at least one candidate cell configuration when an execution condition for the second target SN provided by the first target SN is met,
- wherein the at least one candidate cell configuration is maintained after completion of the change from the source SN to the first target SN or after completion of the SN addition of the first target SN to perform the change from the first target SN to the second target SN or the SN addition of the second target SN.
4 more elements
A method for wireless communication comprising:
- receiving, by a first target secondary node (SN) from a master node (MN), a secondary node (SN) addition request for a SN change from a source SN or a SN addition of the first target SN, wherein the request comprises candidate cell information for the first target SN;
- sending, by the first target SN to the MN, a response that includes at least one candidate cell configuration;
- and
- wherein the MN sends to a user equipment (UE), a radio resource control (RRC) message with the at least one candidate cell configuration and one or more execution conditions for each of a plurality of candidate cells to cause the UE to:
- trigger a change from the source SN to the first target SN or a SN addition of the first target SN based on a candidate cell configuration of the at least one candidate cell configuration when the one or more execution conditions for one of the candidate cells from the first target SN are met;
- and subsequently trigger a change from the first target SN to a second target SN or a SN addition of the second target SN based on another candidate cell configuration of the at least one candidate cell configuration when the execution condition for the second target SN provided by the first target SN is met,
- wherein the at least one candidate cell configuration is maintained after completion of the change from the source SN to the first target SN or after completion of the SN addition of the first target SN to perform the change from the first target SN to the second target SN or the SN addition of the second target SN.
4 more elements
A method for wireless communication comprising:
- receiving, by a user equipment (UE) from a master node (MN), a radio resource control (RRC) message with at least one candidate cell configuration and one or more execution conditions for each of at least one candidate cell;
- performing, by a UE, a change from a source secondary node (SN) to a first target secondary node (SN) or a secondary node (SN) addition of the first target SN based on a candidate cell configuration of the at least one candidate cell configuration when the one or more execution conditions for one of the candidate cells from the first target SN are met;
- and
- performing, by the UE, a change from the first target SN to a second target SN or a SN addition of the second target SN based on another candidate cell configuration of the at least one candidate cell configuration when an execution condition for the second target SN provided by the first target SN is met,
- wherein the at least one candidate cell configuration is maintained after completion of the change from the source SN to the first target SN or after completion of the SN addition of the first target SN to perform the change from the first target SN to the second target SN or the SN addition of the second target SN.
2 more elements
Dependencies are inferred from the claim text.