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US 12,615,567 B2Granted
Configuration for layer 1 or layer 2 triggered mobility (LTM) for cell switching
AssigneeComcast Cable Communications, LLC
InventorsTaehun Kim, Hyoungsuk Jeon, Esmael Hejazi Dinan, Jian Xu, Kyungmin Park, Fasil Abdul Latheef
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Abstract
A wireless device may switch from a source cell to a target cell after receiving a cell switch command. The wireless device may determine whether to perform a reset and/or recovery procedure based on whether the source cell and the target cell are in a same cell group. One or more configuration parameters may be used to indicate whether to perform a reset and/or recovery procedure.
Claims20
A method comprising:
- receiving, by a wireless device and from a base station, a radio resource control (RRC) message comprising a configuration for layer 1 or layer 2 triggered mobility (LTM), wherein the configuration for LTM indicates:
- a configuration of one or more candidate cells for LTM;
- a first parameter associated with a serving cell;
- and
- a second parameter associated with the one or more candidate cells for LTM;
- receiving a medium access control (MAC) control element (CE) indicating to switch the serving cell to a candidate cell of the one or more candidate cells;
- and
- based on receiving the MAC CE and based on the first parameter being different from the second parameter, performing at least one of:
- re-establishing a radio link control (RLC) entity of the wireless device;
- or
- performing a packet data convergence protocol (PDCP) data recovery.
8 more elements
A method comprising:
- receiving, by a wireless device and from a base station, layer 1 or layer 2 triggered mobility (LTM) configuration information for a candidate cell, wherein the LTM configuration information indicates:
- a first parameter associated with a serving cell;
- and
- a second parameter associated with the candidate cell;
- receiving a medium access control (MAC) control element (CE) indicating to switch from the serving cell to the candidate cell;
- and
- re-establishing, based on receiving the MAC CE and based on the first parameter being different from the second parameter, a radio link control (RLC) entity of the wireless device.
4 more elements
A method comprising:
- receiving, by a wireless device and from a base station, layer 1 or layer 2 triggered mobility (LTM) configuration information for a candidate cell, wherein the LTM configuration information indicates:
- a first parameter associated with a serving cell;
- and
- a second parameter associated with the candidate cell;
- receiving a medium access control (MAC) control element (CE) indicating to switch from the serving cell to the candidate cell;
- and
- performing, based on receiving the MAC CE and based on the first parameter being different from the second parameter, a packet data convergence protocol (PDCP) data recovery.
4 more elements
Dependencies are inferred from the claim text.