Secondary synchronization sequences for cell group detection...

H - Electricity – 04 – B

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H04B 7/26 (2006.01)

Patent

CA 2674274

Timing parameters and an identity of a particular one of a number of cell groups are indicated in a signal transmitted in a cellular communication system having a radio frame in a physical layer, the radio frame comprising a number of time slots. In a known one of the time slots, a synchronization signal, S 1, is transmitted that comprises a pair of sequences (I) arranged in a first ordering. In another known one of the time slots, a synchronization signal, S 2, is transmitted that comprises the pair of sequences (II) arranged in a second ordering. The selected pair of sequences is uniquely ident ified with the particular cell group, and the first ordering of the sequences is used only for transmission in the known one of the time slots, and the second ordering of the sequences is used only for transmission in said another known one of the time slots.

Selon l'invention, des paramètres de synchronisation et une identité d'un groupe de cellules particulier parmi un certain nombre de groupes de cellules sont indiqués dans un signal transmis dans un système de communication cellulaire présentant une trame radio dans une couche physique, la trame radio comprenant un certain nombre d'intervalles de temps. Dans un intervalle de temps connu parmi les intervalles de temps, un signal de synchronisation, S 1, est transmis, lequel comprend une paire de séquences (I) agencées selon un premier ordre. Dans un autre intervalle de temps connu parmi les intervalles de temps, un signal de synchronisation, S 2, est transmis, lequel comprend la paire de séquences (II) agencées selon un second ordre. La paire sélectionnée de séquences est uniquement identifiée à l'aide du groupe de cellules particulier, et le premier ordre des séquences est utilisé uniquement pour la transmission dans l'intervalle de temps connu parmi les intervalles de temps, et le second ordre des séquences est utilisé uniquement pour la transmission dans ledit autre intervalle de temps connu parmi les intervalles de temps.

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