Invention Grant
- Patent Title: Enhanced trigger frame based discovery for a neighbor awareness network
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Application No.: US14628158Application Date: 2015-02-20
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Publication No.: US09699713B2Publication Date: 2017-07-04
- Inventor: Yan Zhou , Santosh Paul Abraham , Alireza Raissinia
- Applicant: QUALCOMM Incorporated
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agency: Arent Fox
- Main IPC: H04L12/28
- IPC: H04L12/28 ; H04W48/16 ; H04L12/825 ; H04W64/00 ; H04B7/06 ; H04W8/00 ; H04L1/00 ; H04L29/08 ; H04W4/02 ; H04W16/28 ; H04W84/18 ; H04W74/08

Abstract:
When a first node cannot hear a second node, the second node is “hidden” to the first node. In response to receiving a trigger frame, the two nodes may inadvertently transmit response frames at approximately the same time. The response frames may collide with each other, thereby causing delays in node discovery in a NAN. Provided herein are methods, apparatuses, and computer program products for reducing collisions in wireless communication. In some configurations, nodes may receive trigger frames that indicate a reduction in the rate that response frames are transmitted when traffic load conditions are high. In some configurations, nodes located in different coverage areas (e.g., a “hidden area” and a “non-hidden area”) may transmit response frames at different times. In some configurations, the nodes may refrain from transmitting their response frames upon hearing that another node having a higher serving preference rank is transmitting.
Public/Granted literature
- US20150245335A1 ENHANCED TRIGGER FRAME BASED DISCOVERY FOR A NEIGHBOR AWARENESS NETWORK Public/Granted day:2015-08-27
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