Patent ID: 8619753
Filing Date: 2013-12-31
Classification: H04L,H04W

Abstract:
1. 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.