Kabushiki Kaisha Toshiba

Jonathan David Lewis

Michael Philip Fitton

The invention generally relates to improved correlators for spread spectrum receivers, particularly for third generation mobile communications systems. A Golay correlator with a plurality of delay structures is described. At least one of these delay structures includes a plurality of memory elements sharing a common input bus; and a circular shift register having a plurality of bit positions, one for each of the memory elements, each bit position storing a single bit and having an associated bit position output, each bit position output being coupled to corresponding memory elements for enabling writing of data into the memory element when the bit position output is active; and wherein, in use, only one of the bit positions in the circular shift register is active, the active bit position moving circularly through the shift register to select the memory element into which data on the common bus is written.

Digital correlators

Independent radio communication devices can share network information directly with each other in the local area using an independent wireless link. This network information encompasses synchronisation information, interference, network configuration, neighbour cell list, paging requests, etc., and can be relevant to multiple networks, frequency carriers and/or air interface modes. Sharing the information reduces the processing requirement, the power consumption, and the bandwidth consumption of devices.

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Bristol, United Kingdom

Jonathan David Lewis