Enhanced channel access mechanisms for QoS-driven wireless LANs
First Claim
1. A system for providing a contention control frame within a basic service set in a wireless network, comprising:
- a point coordinator station within the basic service set for sending the contention control frame in a contention-free period of a superframe that also includes a contention period, the contention control frame containing;
information relating to an available centralized contention opportunity for receiving a reservation request non-data frame in a centralized contention interval following the contention control frame; and
information identifying stations from which a reservation request non-data frame was successfully received by the point coordinator station in a preceding centralized contention interval.
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0 Petitions
Accused Products
Abstract
A method and system are disclosed for providing quality of service (QoS)-driven channel access within a basic service set (BSS) in a wireless network. A contention control (CC) frame is sent from a point coordinator (PC) station of the BSS. The CC frame contains information relating to a number of available centralized contention opportunities (CCOs) for receiving a reservation request (RR) in a centralized contention interval (CCI) following the CC frame. The CC frame also contains information relating to the identification of stations from which an RR was successfully received by the PC station in a preceding CCI. The superframe includes a contention-free period (CFP) and a contention (CP). The CC frame is received at a non-PC station in the BSS.
163 Citations
20 Claims
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1. A system for providing a contention control frame within a basic service set in a wireless network, comprising:
a point coordinator station within the basic service set for sending the contention control frame in a contention-free period of a superframe that also includes a contention period, the contention control frame containing; information relating to an available centralized contention opportunity for receiving a reservation request non-data frame in a centralized contention interval following the contention control frame; and information identifying stations from which a reservation request non-data frame was successfully received by the point coordinator station in a preceding centralized contention interval. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for providing a contention control frame within a basic service set in a wireless network, comprising:
in a contention-free period of a superframe that also includes a contention period, sending the contention control frame from a point coordinator station of the basic service set, the contention control frame containing; information relating to an available centralized contention opportunity for receiving a reservation request non-data frame in a centralized contention interval following the contention control frame; and information identifying stations from which a reservation request was successfully received by the point coordinator station in a preceding centralized contention interval. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 20)
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18. A method for processing a contention control frame within a basic service set in a wireless network, comprising:
receiving the contention control frame at a non-point coordinator station in the basic service set, the contention control frame being sent from a point coordinator station of the basic service set in a contention-free period of a superframe that also includes a contention period, the contention control frame containing; information relating to an available centralized contention opportunity for receiving a reservation request non-data frame in a centralized contention interval following the contention control frame; and information identifying stations from which a reservation request non-data frame was successfully received by the point coordinator station in a preceding centralized contention interval, the contention control frame being sent by the point coordinator station during a contention-free period of a superframe. - View Dependent Claims (19)
Specification