Invention Grant
- Patent Title: Low power synchronization in a wireless communication network
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Application No.: US14793175Application Date: 2015-07-07
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Publication No.: US09763189B2Publication Date: 2017-09-12
- Inventor: Peter Pui Lok Ang , Joseph Binamira Soriaga , Tingfang Ji , Joseph Patrick Burke , Stephen Jay Shellhammer , Krishna Kiran Mukkavilli , John Edward Smee
- Applicant: QUALCOMM Incorporated
- Agency: Qualcomm IP Dept.
- Agent James Hunt Yancey, Jr.
- Main IPC: H04W56/00
- IPC: H04W56/00 ; H04W52/02

Abstract:
Some aspects of the present disclosure provide for methods, apparatus, and computer software for low-power synchronization of wireless communication devices. In one example, an asynchronous code division multiple access (CDMA) channel may be utilized for uplink communication. By utilizing asynchronous CDMA on the uplink, synchronization requirements are relaxed relative to other forms of communication. Accordingly, a synchronization period after coming out of a sleep state can be short, reducing power consumption during re-synchronization. In another example, a low-power companion receiver, rather than the full-power WWAN receiver, may be utilized to acquire a sync signal while the device is in its sleep state. Once synchronism is achieved via the low-power companion receiver, the full-power radio may power up and perform communication with the network. By shifting the synchronization from the full-power radio to the low-power companion radio, power consumption during re-synchronization can be achieved.
Public/Granted literature
- US20160150474A1 LOW POWER SYNCHRONIZATION IN A WIRELESS COMMUNICATION NETWORK Public/Granted day:2016-05-26
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