| 主权项 |
1. A wireless communications apparatus to communicate in a wireless communications network, including
a receiving chain for receiving a wireless signal; a first modem for producing a first clear channel assessment indicator that indicates a first physical layer protocol status; a second modem for producing a second clear channel assessment indicator that indicates a second physical layer protocol status; a combination device for producing a combined clear channel assessment indicator from the first and second clear channel assessment indicators, wherein the combined clear channel assessment indictor is active if at least one of the first and second clear channel indicators is active and is not active if neither of the first and second clear channel indicators is active; and an idle indication module containing hardware, the idle indication module to cause the wireless communications apparatus to refrain from transmitting if the combined clear channel assessment indicator is active; and a filter for filtering the combined clear channel assessment indicator to remove glitches of more than a selected time period; wherein said combined clear channel assessment indicator is produced by performing an OR operation between the first and second clear channel assessment indicators. |
