公开(公告)号：JP2004007636A

公开(公告)日：2004-01-08

申请号：JP2003126433

申请日：2003-05-01

Applicant: ST MICROELECTRONICS INC

Inventor： CERVINI STEFANO

IPC: H04B7/26 ,  H04B1/707

Abstract: PROBLEM TO BE SOLVED: To provide a demodulator with reduced delay and power consumption. SOLUTION: A demodulator in a wireless communication network for coupling symbols without need to store received symbols in a buffer for later search and accumulation is provided. The demodulator has more than one accumulators which can accumulate received symbols. Each of the received symbols is associated with a physical channel and a transmission route. The demodulator has a multiplexer to route the received symbols from multiple accumulators to an appropriate accumulator selected. Each of the symbols received from different transmission routes is routed to and accumulated in an appropriate accumulator based on a value of an indicator associated with the physical channel of the received symbol and the transmission route of the received symbol. COPYRIGHT: (C)2004,JPO

公开(公告)号：DE60321506D1

公开(公告)日：2008-07-24

申请号：DE60321506

申请日：2003-05-06

Applicant: ST MICROELECTRONICS INC

Inventor： CERVINI STEFANO

Abstract: An architecture for a rake receiver of a CDMA demodulator utilizes a common data path for signal processing. This common data path is shared by all channels (either physical channels or propagation paths within physical channels) to avoid redundant calculations, reduce circuit space and reduce power consumption. The sharing of the common data path for demodulation is made in a time divided manner, with each channel being given sequential access to the data path to perform all or part of a given demodulation function (for example, de-scrambling, de-spreading, derotating, and de-skewing accumulation).