Method for detecting synchronous shift signaling
A detection method and synchronization offset technology, applied in multiplexing communication, electrical components, time-division multiplexing systems, etc., can solve problems such as deteriorating synchronization performance and failure of synchronization control to achieve expected results
Active Publication Date: 2010-10-06
XUANPU INDUSTRY CO LTD
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The purpose of the present invention is to provide a synchronization offset signaling detection method, which is used for transmission power control in a mobile communication system, so as to overcome the misjudgment caused by bad channels or downlink synchronization errors in the existing synchronization detection. Synchronous control can not achieve the expected effect, or even worsen the technical problem of synchronous performance
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The method includes steps: (1) calculating Rs, i.e. decoded threshold of amplitude; (2) determining whether s12+s 2 2 > Rs; (3) if yes, jumping to (4); otherwise, setting up output code word as 'null and void' of control signaling module for transmitting power; (4) determining whether s2>0 is satisfied; if yes, then setting up the output code word as '01'; otherwise setting up the output code word as '11'. Under low SNR, decoding data with higher error code, the invention can still obtain power control signaling sent by system correctly to generate correct result of adjustment so as to raise performance of power control and synchronization of system.
Description
technical field The present invention generally relates to a synchronization offset signaling detection method, in particular to a synchronization offset signaling detection method for a time division synchronous code division multiple access mobile communication system. Background technique In TDSCDMA mobile communication systems, physical layer control signaling includes Transport Format Composition Indication (TFCI) signaling, Transmit Power Control (TPC) signaling and Synchronization Shift (SS) signaling. These signalings are placed in the data part of the transmission burst structure for transmission, and they have the same spread spectrum processing as the data part of the corresponding physical channel. In the above physical layer control signaling, the synchronization offset signaling is used to control the user equipment to perform timing adjustment. After receiving the sending command, the receiving device is used to control the sending prompt time of the sending ...
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IPC IPC(8): H04J3/06H04L27/22
Inventor 王炳立茅晓泉
Owner XUANPU INDUSTRY CO LTD