Techniques and apparatuses for wakeup signal transmission
AssigneeQUALCOMM Incorporated
InventorsLe Liu, Alberto Rico Alvarino, Peter Pui Lok Ang
Life of this patent
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Abstract
A method, an apparatus, a base station, a user equipment (UE), and a computer program product for wireless communication are provided. The base station may encode a wakeup signal so that a preamble of the wakeup signal indicates whether the wakeup signal is relevant to the UE. The UE may select a technique for detecting the wakeup signal based at least in part on a partial, full, or no synchronization. In some aspects, the wakeup signal may be encoded with a system frame number. In some aspects, wakeup signals for guardband/standalone UEs are provided. Numerous other aspects are provided.
Claims34
A method of wireless communication performed by a user equipment (UE), comprising:
- detecting a wakeup signal based at least in part on an operating condition of the UE, wherein the operating condition includes an extended discontinuous reception (eDRX) cycle of the UE;
- determining that the wakeup signal detected by the UE is associated with the UE based at least in part on the wakeup signal being for a UE group that includes the UE, wherein at least one of a portion of a UE group identifier associated with the UE group, or a portion of a cell identity associated with the UE group, is identified by a preamble of the wakeup signal, and wherein a scrambling sequence of the preamble is based, at least in part, on a system frame number (SFN) and one or more of the portion of the UE group identifier or the portion of the cell identity;
- and
- receiving a communication based at least in part on the wakeup signal.
A user equipment (UE) for wireless communication, comprising:
- a memory;
- and
- one or more processors operatively coupled to the memory, the memory and the one or more processors configured to:
- detecting a wakeup signal based at least in part on an operating condition of the UE, wherein the operating condition includes an extended discontinuous reception (eDRX) cycle of the UE;
- determine that the wakeup signal detected by the UE is associated with the UE based at least in part on the wakeup signal being for a UE group that includes the UE, wherein at least one of a portion of a UE group identifier associated with the UE group, or a portion of a cell identity associated with the UE group, is identified by a preamble of the wakeup signal, and wherein a scrambling sequence of the preamble is based, at least in part, on a system frame number (SFN) and one or more of the portion of the UE group identifier or the portion of the cell identity;
- and
- receive a communication based at least in part on the wakeup signal.
A non-transitory computer-readable medium storing one or more instructions for wireless communication, the one or more 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:
- detecting a wakeup signal based at least in part on an operating condition of the UE, wherein the operating condition includes an extended discontinuous reception (eDRX) cycle of the UE;
- determine that the wakeup signal detected by the UE is associated with the UE based at least in part on the wakeup signal being for a UE group that includes the UE, wherein at least one of a portion of a UE group identifier associated with the UE group, or a portion of a cell identity associated with the UE group, is identified by a preamble of the wakeup signal, and wherein a scrambling sequence of the preamble is based, at least in part, on a system frame number (SFN) and one or more of the portion of the UE group identifier or the portion of the cell identity;
- and
- receive a communication based at least in part on the wakeup signal.
An apparatus for wireless communication, comprising:
- means for detecting a wakeup signal based at least in part on an operating condition of the apparatus, wherein the operating condition includes an extended discontinuous reception (eDRX) cycle of the apparatus;
- means for determining that the wakeup signal detected by the apparatus is associated with the apparatus based at least in part on the wakeup signal being for a group that includes the apparatus, wherein at least one of a portion of a group identifier associated with the group, or a portion of a cell identity associated with the group, is identified by a preamble of the wakeup signal, and wherein a scrambling sequence of the preamble is based, at least in part, on a system frame number (SFN) and one or more of the portion of the UE group identifier or the portion of the cell identity;
- and
- means for receiving a communication based at least in part on the wakeup signal.
Dependencies are inferred from the claim text.