Invention Grant
- Patent Title: Power savings with preamble in WLAN systems
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Application No.: US14138659Application Date: 2013-12-23
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Publication No.: US09603092B2Publication Date: 2017-03-21
- Inventor: Joonsuk Kim , Syed A. Mujtaba , Xiaowen Wang
- Applicant: Apple Inc.
- Applicant Address: US CA Cupertino
- Assignee: APPLE INC.
- Current Assignee: APPLE INC.
- Current Assignee Address: US CA Cupertino
- Agency: Sterne, Kessler, Goldstein and Fox P.L.L.C.
- Main IPC: H04L12/28
- IPC: H04L12/28 ; H04L12/56 ; H04W52/02

Abstract:
In order to reduce power consumption of an electronic device during communication with another electronic device in a wireless local area network (WLAN), the electronic device analyzes fields in a given packet prior to a payload of the given packet to look for information that specifies a destination of the given packet. For example, the information may include: a full associated identification (AID) of the destination, a partial media-access-control (MAC) address of the destination; and/or a compressed (MAC) address of the destination. The information may be included in the preamble of the given packet. In particular, the information may replace length information in a high-throughput signal field in the given packet. Moreover, if the destination is other than the electronic device, the electronic device dumps the given packet and changes a power state of the electronic device, thereby reducing the power consumption.
Public/Granted literature
- US20150071142A1 POWER SAVINGS WITH PREAMBLE IN WLAN SYSTEMS Public/Granted day:2015-03-12
Information query