Digital radio transmission system for a cellular network,...

Details Digital radio transmission system for a cellular network,... Digital radio transmission system for a cellular network,...

H - Electricity

04

B

325/3

H04B 7/26 (2006.01) H04J 13/00 (2006.01)

Patent

CA 1296772

A B S T R A C T A base station (BS) and mobile user stations (MS) each with a transmitter (S), a receiver (E) for multipath reception and a control unit (ST) are provided in each cell. Exactly one set of several sequence sets of the auxiliary function used for spectrum spreading is allocated to each cell. Sequences of several sets in pairs have the property that the absolute values of the normalized periodic cross-correlation functions are much smaller that one and for sequences within a set the cross-correlation function in pairs is optimally small around the zero point. Data synchronous generation of the transmission signals takes place in the base station (BS) for all simultaneous connections and the data clock of the received signal is used as data clock of the transmission signal of the user station (MS). Application for digital data transmission in building and local areas for the configuration of a so called cordless LAN are considered. (Figure 4) PA-3/152

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