Methods and apparatus for determining a composite channel

摘要

In a communication system that utilizes at least a primary channel, a secondary channel. and a tertiary channel, it is determined whether the primary channel is idle, and it is determined that a composite channel includes a set of one or more channels chosen from at least i) the primary channel, ii) the secondary channel, and iii) the tertiary channel based at least on a determination of whether the primary channel is idle. A signal is transmitted via the composite channel after determining the composite channel.

主权项

1. A method of determining an available channel bandwidth in a communication system that utilizes at least a primary channel, a secondary channel, and a tertiary channel, the method comprising:
determining whether the primary channel is idle; determining whether the secondary channel is idle at least when it is determined that the primary channel is idle, wherein
when the secondary channel does not overlap with a primary channel corresponding to another communication system, determining whether the secondary channel is idle includes determining whether the secondary channel is idle for a first time period, andwhen the secondary channel overlaps with the primary channel corresponding to the other communication system, determining whether the secondary channel is idle includes determining whether the secondary channel is idle for a second time period longer than the first time period; determining that a composite channel includes a set of one or more channels chosen from at least i) the primary channel, ii) the secondary channel, and iii) the tertiary channel based at least on a) whether the primary channel is idle and b) whether the secondary channel is idle; and transmitting a signal via the composite channel after determining the composite channel.