St-Ericsson Sa

Luzhou Xu

Yanzhong Dai

Yan Li

Jian Ming Liu

Dong Wang

Min Shi

Yun Yuan

Ronghui Wu

A mobile terminal with smart antennas, comprises a plurality of groups of radio frequency signal processing modules (), for transforming received multi-channel radio frequency signals to multi-channel baseband signals; a smart antenna processing module (), for smart antenna baseband processing said multi-channel baseband signals output from said plurality of groups of radio frequency signal processing module so as to combine said multi-channel baseband signals into single-channel baseband signals, according to control information received one-off as said smart antenna processing module is enabled; and a baseband processing module (-), for providing said control information to said smart antenna processing module according to data from said smart antenna processing module, and baseband processing said single-channel baseband signals outputted from said smart antenna processing module.

Smart antenna solution for mobile handset

Rake receivers in code division multiple access (CDMA) telecommunication comprise fingers () with each finger processing signal components for a particular transmission path to be able to better synchronize with a RF signal received via different paths, and a combiner () for combining the results originating from said fingers, and a compensator in the form of a controlled oscillator in a feedback loop. By locating a finger compensator (-) in a finger, said finger can handle complex situations, like Doppler shifts under high-speed conditions. Preferably, most or all fingers each comprise such a finger compensator, in which case said feedback loop can be avoided. Such a finger compensator can be hardware, software or a mixture of both when comprising a filter () plus an amplitude normalizer () between two arithmetical modules () for multiplying an input symbol signal with a conjugated previous input symbol signal and an output symbol signal with a previous output symbol signal.

Rake receiver with individual finger compensator(s)

A mobile terminal with multi-antenna () based on CDMA, comprises a plurality of groups of radio frequency signal processing modules (), for transforming received multi-channel radio frequency signals based on CDMA to multi-channel baseband signals; a multi-antenna module (), for combining said multi-channel baseband signals output from the plurality of groups of radio frequency signal processing modules into single-channel baseband signals according to control information received one-off when said multi-antenna module enables a multi-antenna baseband processing; and a baseband processing module (), for providing said control information to said multi-antenna module and baseband processing said single-channel baseband signals outputted from said multi-antenna module.

Multi-antenna solution for mobile handset

Growing community of inventors

Shanghai, China

Luzhou Xu