Method and apparatus or eliminating interference caused by...

Details Method and apparatus or eliminating interference caused by... Method and apparatus or eliminating interference caused by...

2005-09-28

2009-10-06

Eng, George (Department: 2617)

Multiplex communications

Communication over free space

Having a plurality of contiguous regions served by...

C370S236000

Reexamination Certificate

active

07599340

ABSTRACT:
A method and system for eliminating interference caused by hidden nodes is disclosed. An initiator control message is defined for an initiator, (typically a wireless station (STA)), in order to begin an aggregate frame exchange with at least one responder. The initiator control message includes information on the queue sizes at the initiator. A responder, (typically an access point (AP)), sets up the required protection for the transmission of data by the initiator based on information on the queue sizes indicated in a field of the initiator control message using a responder control message. Other STAs that receive the responder control message set parameters for a wireless medium access accordingly. In another embodiment, multiple receiver aggregate multi-poll (MMP) and power save aggregation descriptor (PSAD) control frames are configured for transmission by a non-AP STA to provide enhanced scheduling and mitigate hidden node problems.

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