Multiplex communications – Channel assignment techniques – Carrier sense multiple access
Reexamination Certificate
2008-03-25
2008-03-25
Rao, Seema S. (Department: 2616)
Multiplex communications
Channel assignment techniques
Carrier sense multiple access
Reexamination Certificate
active
07349422
ABSTRACT:
The principles of the present invention provide for providing contention free quality of service to wireless stations. A station indicates to an access point that higher priority data (e.g., time constrained data) is to be sent to the access point. The access point receives the indication and selects a slot time for the station based on the number of other stations that have also indicated higher priority data. A slot time is selected such that the station can check for access to a common wireless link before any stations with lower priority data (e.g., data without time constraints). The access point sends the selected slot time to the station and the station receives the slot time. When the station receives an indication that an application has higher priority data to send, the station checks the common wireless link for availability at the selected slot time.
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Evaluation of Quality of Service Schemes for IEEE 802.11 Wireless LANs Anders Lindgren, Andreas Almquist, Olov Schelen, Division of Computer Science and Networking Department of Computer Science and Electrical Engineering 2001 IEEE, pp. 348 to 351.
Design of a Link Control Protocol for Multimedia Services in Wireless Local Communication Anirban Roy and Pallapa Venkataram 2001 Kluwer Academic Publishers pp. 247-274.
Abhishek Abhishek
Ayyagari Arun
Duong Francis
Duong Christine
Microsoft Corporation
Rao Seema S.
Workman Nydegger
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