US 8,619,753 B1Granted

Service period recovery scheme for wireless communications

AssigneeMarvell International Ltd.

InventorsYong Liu, Raja Banerjea

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Abstract

Systems and methods for service period recovery in a wireless communications system are provided. An initial service period for transmitting data is assigned to a first remote station. Data period schedule information, including the assignment of the initial service period, is transmitted from a central station. In response to determining that the first remote station is not transmitting during the initial service period, a modified service period is assigned to the first remote station. A service period change announcement, including the assignment of the modified service period, is transmitted from the central station. In response to determining that the first remote station is not transmitting during the modified service period, the initial service period is truncated and a service period truncation is transmitted from the central station.

Claims17

Dependent claims

A method for service period recovery in a wireless communications system, the method comprising:

assigning an initial service period to a first remote station for transmitting data;
transmitting data period schedule information from a central station including the assignment of the initial service period;
in response to determining that the first remote station is not transmitting during the initial service period, assigning a modified service period to the first remote station;
transmitting a service period change announcement from the central station including the modified service period, wherein the modified service period is a defined period of time that differs from the initial service period;
in response to determining that the first remote station is not transmitting during the modified service period, truncating the modified service period;
and
transmitting a service period truncation message from the central station to the first remote station, wherein the service period truncation message notifies the first remote station that it is no longer assigned the modified service period.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 12/558,239Filed 11 Sep 2009 · us provisional application
Priority: 15 Sep 2008
Granted: 31 Dec 2013
Term ends: Not estimatedThe source records don’t support an estimate.

Classification6 codes

H04L 5/0058
Arrangements for allocating sub-channels of the transmission path: allocation criteria
H04L 5/0071
Allocation criteria: allocation based on fairness other than the proportional kind
H04W 72/535
Allocation or scheduling criteria for wireless resources: based on resource usage policies
H04W 72/52
Allocation or scheduling criteria for wireless resources: based on load