Frame structure for cellular telecommunications systems

Details Frame structure for cellular telecommunications systems Frame structure for cellular telecommunications systems

H - Electricity

04

Q

H04Q 7/36 (2006.01) H04B 7/26 (2006.01) H04Q 11/04 (2006.01)

Patent

CA 2363406

In order to double the size of cells for a UMTS/UTRAN system operating in time division mode (TDD) from 3.75 km to 7.5 km, the node B station defines the guard period (66) for a downlink slot followed by an adjacent uplink slot to be longer than the guard period (68) for an uplink slot followed by an adjacent downlink slot, whereby the cell size is extended. Each UE adjusts its timing in reponse to timing deviation signals (64) transmitted at the start of each downlink bust, so as to transmit an uplink burst which arrive at the Node B, at the beginning of the next uplink slot.

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