CONTROL METHOD OF FREQUENCY BAND SWITCHING AND WIRELESS COMMUNICATION APPARATUS

摘要

In a frequency band switching by Fast Session Transfer (FST), a timeout value (link loss timeout: LLT) is determined based on a change in a communication state, a switching setup sequence including a step of transmitting the determined timeout value to a peer wireless station is performed, and frequency switching to the second frequency band is performed when time of the timeout value elapses from when the switching setup sequence is completed. For example, a large timeout value (LLT=T1) is set at time of connection establishment, and the LLT is changed (LLT=T2 to T4) based on, for example, a state of transmission data or a change in a channel state.

主权项

1. A control method of switching frequency band used in communication by a wireless station capable of communication in two or more frequency bands, the method comprising:
setting a timeout value based on a change in a communication state; performing a switching setup sequence during communication in a first frequency band among the two or more frequency bands, wherein the switching setup sequence includes a step of transmitting the timeout value used in switching to communication in a second frequency band among the two or more frequency bands to a peer wireless station, using the first frequency band which is being used for communication; and performing switching to the second frequency band when time of the timeout value elapses from when the switching setup sequence is completed.