Panasonic Corporation

Igrs Engineering Lab Ltd.

Panosonic Corporation

Xiaohong Yu

Jifeng Li

Xiaoming She

Technologies are generally described related to remotely retrieving information from a mobile device. One example method for distributing information via a mobile network may include receiving, by a first mobile device from a second mobile device, a data request for a first set of information, wherein the data request includes a passcode. The example method may include authenticating the second mobile device using the passcode, and sending the first set of information stored on the first mobile device to the second mobile device via the mobile network.

Remote mobile device information retrieval

MIMO transmitting apparatus wherein data to be retransmitted and data to be transmitted anew are rearranged, thereby using HARQ technique to improve the reliability of the system transmission, while increasing the system throughput and improving the efficiency of the whole data transmission. In this apparatus, a retransmittal data selecting means () temporarily stores data, and outputs, as retransmittal data, the data when it is determined, based on feedback information, that the data must be retransmitted. A deinterleaving means () performs a deinterleaving process under control of an interleaving control means (). The interleaving control means () controls, based on the feedback information, an interleaving process.

MIMO transmitting apparatus, and data retransmitting method in MIMO system

A classifying-synthesizing transmission method of multi-user feedback information at a base station. At the base station, a classifier () classifies users into a plurality of kinds on the basis of different efficiencies at the time when the base station transmits information to the users. On the basis of the characteristics of synthetic data, a compressor () compresses the information synthesized, to reduce the quantity of information to be transmitted. A synthesizer () again synthesizes the compressed data of different user kinds. An encoder () adds redundant information to the feedback information to be transmitted. A transmitter () transmits the encoded feedback information to all users. As a result, the quantity of communication of a downward feedback channel can be drastically reduced to spare the use of radio resources.

Classifying-synthesizing transmission method of multi-user feedback information at base station

A transmitting apparatus capable of enhancing the certainty of data transmission of MIMO system, improving the system throughput, and providing a retransmission technique adaptive to the multi-antenna transmission. In this apparatus, a serial/parallel converting part () serial/parallel converts the data, which is to be transmitted, into a number nof data substreams. A data rearranging part () rearranges, based on feedback information, the ndata substreams. CRC encoding parts () CRC encode the respective data substreams. Modulating/encoding parts () modulate and encode the respective corresponding data substreams. A number nof transmission antennas () transmit the data substreams.

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Beijing, China

Xiaohong Yu