Physical downlink control channel repetition in the presence of search space set switching
AssigneeQUALCOMM Incorporated
InventorsMostafa Khoshnevisan, Jing Sun, Xiaoxia Zhang
Life of this patent
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Abstract
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a base station, search space (SS) configuration information associated with switching between a first SS set group and a second SS set group. The UE may receive, from the base station, downlink control information associated with physical downlink control channel repetitions based at least in part on switching between the first SS set group and the second SS set group. Numerous other aspects are described.
Claims30
A user equipment (UE) for wireless communication, comprising:
- one or more memories;
- and
- one or more processors, coupled to the one or more memories, configured to:
- receive, from a base station, search space (SS) configuration information associated with switching between monitoring SS sets associated with a first SS set group and monitoring SS sets associated with a second SS set group,
- wherein physical downlink control channel (PDCCH) candidates, included in different SS sets, are linked together for PDCCH repetition by having a same control channel element (CCE) index,
- wherein the switch between monitoring the SS sets associated with the first SS set group and monitoring the SS sets associated with the second SS set group dynamically enables or disables the PDCCH repetition for the PDCCH candidates included in the different SS sets based at least in part on:
- enablement of the PDCCH repetition when the different SS sets are associated with an active SS set group, and
- wherein, to switch between monitoring the SS sets associated with the first SS set group and monitoring the SS sets associated with the second SS set group, the one or more processors are further configured to:
- stop monitoring the SS sets associated with the first SS set group and start monitoring the SS sets associated with the second SS set group, or
- stop monitoring the SS sets associated with the second SS set group and start monitoring the SS sets associated with the first SS set group;
- and
- receive, from the base station, downlink control information (DCI) associated with PDCCH repetitions via a first PDCCH candidate, associated with the first SS set group, and via a second PDCCH candidate, associated with the second SS set group, that is linked to the first PDCCH candidate and that has a same CCE index as the first PDCCH candidate.
A method of wireless communication performed by a user equipment (UE), comprising:
- receiving, from a base station, search space (SS) configuration information associated with switching between monitoring SS sets associated with a first SS set group and monitoring SS sets associated with a second SS set group,
- wherein physical downlink control channel (PDCCH) candidates, included in different SS sets, are linked together for PDCCH repetition by having a same control channel element (CCE) index,
- wherein the switching between monitoring the SS sets associated with the first SS set group and monitoring the SS sets associated with the second SS set group dynamically enables or disables the PDCCH repetition for the PDCCH candidates included in the different SS sets based at least in part on:
- enablement of the PDCCH repetition when the different SS sets are associated with an active SS set group, and
- wherein the switching between monitoring the SS sets associated with the first SS set group and monitoring the SS sets associated with the second SS set group includes:
- stopping monitoring the SS sets associated with the first SS set group and starting monitoring the SS sets associated with the second SS set group, or
- stopping monitoring the SS sets associated with the second SS set group and starting monitoring the SS sets associated with the first SS set group;
- and
- receiving, from the base station, downlink control information (DCI) associated with PDCCH repetitions via a first PDCCH candidate, associated with the first SS set group, and via a second PDCCH candidate, associated with the second SS set group, that is linked to the first PDCCH candidate and that has a same CCE index as the first PDCCH candidate.
A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions comprising:
- one or more instructions that, when executed by one or more processors of a user equipment (UE), cause the one or more processors to:
- receive, from a base station, search space (SS) configuration information associated with switching between monitoring SS sets associated with a first SS set group and monitoring SS sets associated with a second SS set group,
- wherein physical downlink control channel (PDCCH) candidates, included in different SS sets, are linked together for PDCCH repetition by having a same control channel element (CCE) index,
- wherein the switch between monitoring the SS sets associated with the first SS set group and monitoring the SS sets associated with the second SS set group dynamically enables or disables the PDCCH repetition for the PDCCH candidates included in the different SS sets based at least in part on:
- enablement of the PDCCH repetition when the different SS sets are associated with an active SS set group, and
- wherein, to switch between monitoring the SS sets associated with the first SS set group and monitoring the SS sets associated with the second SS set group, the one or more instructions further cause the one or more processors to:
- stop monitoring the SS sets associated with the first SS set group and start monitoring the SS sets associated with the second SS set group, or
- stop monitoring the SS sets associated with the second SS set group and start monitoring the SS sets associated with the first SS set group;
- and
- receive, from the base station, downlink control information (DCI) associated with PDCCH repetitions via a first PDCCH candidate, associated with the first SS set group, and via a second PDCCH candidate, associated with the second SS set group, that is linked to the first PDCCH candidate and that has a same CCE index as the first PDCCH candidate.
An apparatus for wireless communication, comprising:
- means for receiving, from a base station, search space (SS) configuration information associated with switching between monitoring SS sets associated with a first SS set group and monitoring SS sets associated with a second SS set group,
- wherein physical downlink control channel (PDCCH) candidates, included in different SS sets, are linked together for PDCCH repetition by having a same control channel element (CCE) index,
- wherein the switching between monitoring the SS sets associated with the first SS set group and monitoring the SS sets associated with the second SS set group dynamically enables or disables the PDCCH repetition for the PDCCH candidates included in the different SS sets based at least in part on:
- enablement of the PDCCH repetition when the different SS sets are associated with an active SS set group, and
- wherein the switching between monitoring the SS sets associated with the first SS set group and monitoring the SS sets associated with the second SS set group includes:
- stopping monitoring the SS sets associated with the first SS set group and starting monitoring the SS sets associated with the second SS set group, or
- stopping monitoring the SS sets associated with the second SS set group and starting monitoring the SS sets associated with the first SS set group;
- and
- means for receiving, from the base station, downlink control information (DCI) associated with PDCCH repetitions via a first PDCCH candidate, associated with the first SS set group, and via a second PDCCH candidate, associated with the second SS set group, that is linked to the first PDCCH candidate and that has a same CCE index as the first PDCCH candidate.
Dependencies are inferred from the claim text.