Beam switching gap
AssigneeQUALCOMM Incorporated
InventorsAhmed Abdelaziz Ibrahim Abdelaziz Zewail, Jing Sun, Xiaoxia Zhang, Tao Luo, Wooseok Nam
Life of this patent
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Abstract
Certain aspects of the present disclosure provide techniques for beam switching gaps. A base station (BS) can send an allocation to a user equipment (UE) including an at least one symbol beam switching gap based, at least in part, on a subcarrier spacing (SCS) of the UE. The UE and BS can then communicate using the allocation. The allocation may also be based on reported capability of the UE. The allocation may also be based on capability of the BS. The beam switching gap can be allocated explicitly or implicitly.
Claims39
A method for wireless communications by a user equipment (UE), comprising:
- receiving an allocation from a base station (BS) including at least one symbol beam switching gap based, at least in part, on a subcarrier spacing (SCS) of the UE, wherein receiving the allocation from the BS for the at least one symbol beam switching gap comprises:
- detecting one or more grants from the BS;
- determining the at least one symbol beam switching gap is not allocated in time domain resources allocated by a first grant when there is another grant that indicates the same beam is used for adjacent time domain resources after the time domain resources allocated by the first grant;
- and
- determining the at least one symbol beam switching gap is allocated in the time domain resources allocated by the first grant when:
- there is another grant that indicates a different beam is used for the adjacent time domain resources after the time domain resources allocated by the first grant, or
- no other grant is received to allocate the time domain resources after the adjacent time domain resources allocated by the first grant;
- and
- communicating with the BS using the allocation.
A method for wireless communications by a base station (BS), comprising:
- sending an allocation to a user equipment (UE) including at least one symbol beam switching gap based, at least in part, on a subcarrier spacing (SCS) of the UE, wherein sending the allocation comprises:
- sending a first grant to the UE allocating first time domain resources using a beam and a second grant allocating adjacent second time domain resources using the same beam to indicate the at least one symbol beam switching gap is not allocated in the first time domain resources allocated by the first grant;
- and
- sending the first grant to the UE allocating first time domain resources using the beam and the second grant allocating adjacent second time domain resources using a different beam to indicate the at least one symbol beam switching gap is allocated in the first time domain resources allocated by the first grant;
- and
- communicating with the UE using the allocation.
An apparatus, comprising:
- a memory;
- and
- at least one processor coupled with the memory and configured to:
- receive an allocation from a base station (BS) including at least one symbol beam switching gap based, at least in part, on a subcarrier spacing (SCS) of the apparatus, wherein in order to receive the allocation from the BS, the processor is configured to cause the apparatus to:
- detect one or more grants from the BS;
- determine the at least one symbol beam switching gap is not allocated in time domain resources allocated by a first grant when there is another grant that indicates the same beam is used for adjacent time domain resources after the time domain resources allocated by the first grant;
- and
- determine the at least one symbol beam switching gap is allocated in the time domain resources allocated by the first grant when:
- there is another grant that indicates a different beam is used for the adjacent time domain resources after the time domain resources allocated by the first grant, or
- no other grant is received to allocate the time domain resources after the adjacent time domain resources allocated by the first grant;
- and
- communicate with the BS using the allocation.
An apparatus, comprising:
- a memory;
- and
- at least one processor coupled with the memory and configured to:
- send an allocation to a user equipment (UE) including at least one symbol beam switching gap based, at least in part, on a subcarrier spacing (SCS) of the UE, wherein in order to send the allocation to the UE, the processor is configured to cause the apparatus to:
- send a first grant to the UE allocating first time domain resources using a beam and a second grant allocating adjacent second time domain resources using the same beam to indicate the at least one symbol beam switching gap is not allocated in the first time domain resources allocated by the first grant;
- and
- send the first grant to the UE allocating first time domain resources using the beam and the second grant allocating adjacent second time domain resources using a different beam to indicate the at least one symbol beam switching gap is allocated in the first time domain resources allocated by the first grant;
- and
- communicate with the UE using the allocation.
An apparatus, comprising:
- means for receiving an allocation from a base station (BS) including at least one symbol beam switching gap based, at least in part, on a subcarrier spacing (SCS) of the apparatus, wherein the means for receiving the allocation from the BS for the at least one symbol beam switching gap comprises:
- means for detecting one or more grants from the BS;
- means for determining the at least one symbol beam switching gap is not allocated in time domain resources allocated by a first grant when there is another grant that indicates the same beam is used for adjacent time domain resources after the time domain resources allocated by the first grant;
- and
- means for determining the at least one symbol beam switching gap is allocated in the time domain resources allocated by the first grant when:
- there is another grant that indicates a different beam is used for the adjacent time domain resources after the time domain resources allocated by the first grant, or
- no other grant is received to allocate the time domain resources after the adjacent time domain resources allocated by the first grant;
- and
- means for communicating with the BS using the allocation.
An apparatus, comprising:
- means for sending an allocation to a user equipment (UE) including at least one symbol beam switching gap based, at least in part, on a subcarrier spacing (SCS) of the UE, wherein the means for sending the allocation to the UE comprises:
- means for sending a first grant to the UE allocating first time domain resources using a beam and a second grant allocating adjacent second time domain resources using the same beam to indicate the at least one symbol beam switching gap is not allocated in the first time domain resources allocated by the first grant;
- and
- means for sending the first grant to the UE allocating first time domain resources using the beam and the second grant allocating adjacent second time domain resources using a different beam to indicate the at least one symbol beam switching gap is allocated in the first time domain resources allocated by the first grant;
- and
- means for communicating with the UE using the allocation.
A non-transitory computer readable medium storing computer executable code thereon which, when executed by a processor, performs an operation for wireless communications by a user equipment (UE) comprising:
- receiving an allocation from a base station (BS) including at least one symbol beam switching gap based, at least in part, on a subcarrier spacing (SCS) of the UE, wherein receiving the allocation from the B S for the at least one symbol beam switching gap comprises:
- detecting one or more grants from the BS;
- determining the at least one symbol beam switching gap is not allocated in time domain resources allocated by a first grant when there is another grant that indicates the same beam is used for adjacent time domain resources after the time domain resources allocated by the first grant;
- and
- determining the at least one symbol beam switching gap is allocated in the time domain resources allocated by the first grant when:
- there is another grant that indicates a different beam is used for the adjacent time domain resources after the time domain resources allocated by the first grant, or
- no other grant is received to allocate the time domain resources after the adjacent time domain resources allocated by the first grant;
- and
- communicating with the BS using the allocation.
A non-transitory computer readable medium storing computer executable code thereon which, when executed by a processor, performs an operation for wireless communications by a base station comprising:
- sending an allocation to a user equipment (UE) including at least one symbol beam switching gap based, at least in part, on a subcarrier spacing (SCS) of the UE, wherein sending the allocation to the UE comprises:
- sending a first grant to the UE allocating first time domain resources using a beam and a second grant allocating adjacent second time domain resources using the same beam to indicate the at least one symbol beam switching gap is not allocated in the first time domain resources allocated by the first grant;
- and
- sending the first grant to the UE allocating first time domain resources using the beam and the second grant allocating adjacent second time domain resources using a different beam to indicate the at least one symbol beam switching gap is allocated in the first time domain resources allocated by the first grant;
- and
- communicating with the UE using the allocation.
Dependencies are inferred from the claim text.