Patent ID: 7715871
Filing Date: 2010-05-11
Classification: H04B,H04W

Abstract:
1. A method for repeating wireless signals bidirectionally and synchronously, which is applied to a TDD wireless communication system comprising a base station and a terminal device, wherein said method comprises: step A: obtaining synchronization information of said system from wireless signals emitted from said base station; step B: generating reference control signals accurately synchronized with the base station according to the obtained system synchronization information and the system time slot configuration information; step C: processing said reference control signals accurately synchronized with the base station respectively to generate a plurality of time sequential control signals to control the uplink RF amplification, the downlink RF amplification and the receiving and transmission respectively, thereby controlling the downlink channel to be closed when uplink channel is open and the uplink channel to be closed when the downlink channel is open, so as to repeat signals emitted from the uplink/downlink channel between said base station and terminal devices bidirectionally and synchronously; wherein said sequential control signals described in step C are obtained by logically converting and delaying said reference control signals accurately synchronized with the base station; said logical conversion and delay indicate concretely: delaying the downlink RF amplification control signals, the uplink RF amplification control signals, and the receive- and transmit control signals respectively, so that: when switching from the downlink enable to the uplink enable, the downlink RF amplification control signal (PA_EN when switching from the uplink enable to the downlink enable, the uplink RF amplification control signal (PA_EN