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US 7,925,297 B2Granted
TXOP duration adaptation for dual radio devices
AssigneeIntel Corporation
InventorsJing Zhu, Xue Yang
Life of this patent
Estimating the term…
Abstract
Transmission opportunity (TXOP) duration is adapted for a wireless local area network (WLAN) transceiver in a dual radio wireless device based on an end of free time indication associated with a wireless wide area network (WWAN) transceiver within the same device. In this manner, the occurrence of collisions between WLAN communication activity and WLAN communication activity within the dual radio device may be reduced or eliminated.
Claims16
A method comprising:
- maintaining an updated end of free time indication for a first wireless transceiver within a multiple radio wireless device, said end of free time indication being indicative of a point in time when said first wireless transceiver is scheduled to cease being inactive;
- determining that a second wireless transceiver within said multiple radio wireless device is ready to communicate;
- and
- calculating, in response to determining, a transmission opportunity (TXOP) duration L for said second wireless transceiver using said end of free time indication of said first wireless transceiver, wherein L is calculated using the equation:
- L=min(E−T−d, LMAX)
- where E is the updated end of free time indication for said first wireless transceiver, T is the current time, d is a guard interval, LMAX is the maximum TXOP duration for said second wireless transceiver, L is the calculated TXOP duration for said second wireless transceiver, and min(a,b) is the function that selects the lowest of listed elements a and b.
3 more elements
An apparatus comprising:
- a first wireless transceiver configured in accordance with a scheduling based wireless standard, said first wireless transceiver having a first controller to maintain an updated end of free time indication for said first wireless transceiver, said end of free time indication being indicative of a point in time when said first wireless transceiver is scheduled to cease being inactive;
- and
- a second wireless transceiver configured in accordance with a contention based wireless standard, said second wireless transceiver including a second controller to:
- (a) determine that said second wireless transceiver is ready to communicate;
- and (b) calculate, in response to said determination, a transmission opportunity (TXOP) duration L for said second wireless transceiver using said end of free time indication of said first wireless transceiver, wherein L is calculated using the equation:
- L=min(E−T−d, LMAX)
- where E is the updated end of free time indication for said first wireless transceiver, T is the current time, d is a guard interval, LMAX is the maximum TXOP duration for said second wireless transceiver, L is the calculated TXOP duration for said second wireless transceiver, and min(a,b) is the function that selects the lowest of listed elements a and b.
4 more elements
An article comprising a computer readable storage medium having instructions stored thereon that, when executed by a computing platform, operate to:
- maintain an updated end of free time indication for a first wireless transceiver within a multiple radio wireless device, said end of free time indication being indicative of a point in time when said first wireless transceiver is scheduled to cease being inactive;
- determine that a second wireless transceiver within said multiple radio wireless device is ready to communicate;
- and
- calculate, in response to said determination, a transmission opportunity (TXOP) duration L for said second wireless transceiver using said end of free time indication of said first wireless transceiver, wherein L is calculated using the equation:
- L=min(E−T−d, LMAX)
- where E is the updated end of free time indication for said first wireless transceiver, T is the current time, d is a guard interval, LMAX is the maximum TXOP duration for said second wireless transceiver, L is the calculated TXOP duration for said second wireless transceiver, and min (a,b) is the function that selects the lowest of listed elements a and b.
3 more elements
Dependencies are inferred from the claim text.