Receiver path selection based on burst-type in a time...

Details Receiver path selection based on burst-type in a time... Receiver path selection based on burst-type in a time...

H - Electricity

04

B

H04B 7/212 (2006.01) H03G 3/20 (2006.01) H04B 1/16 (2006.01)

Patent

CA 2175914

A TDMA receiver (100) has a limiting receiver path (116) for access bursts and a linear receiver path (117) for all other traffic and signalling bursts. Since the access bursts are not interleaved in typical TDMA digital cellular systems, such as the Global System for Mobile Communications (GSM) digital cellular system, the loss of amplitude information is not detrimental to acceptable access burst error rates in the TDMA receiver (100) implementation. The TDMA receiver (100) determines the burst-type (either through a priori knowledge of the burst-type or dynamic determination of the burst-type) and a selector switch (124) chooses which receiver path (116, 117) is to be demodulated.

Un récepteur AMRT (100) comporte une voie de réception à limitation (116) destinée aux rafales d'accès et une voie linéaire (117) destinée à toutes les autres salves de trafic et de signalisation. Etant donné qu'avec des systèmes cellulaires numériques AMRT standards, tels que le système cellulaire numérique de type GSM, les salves d'accès ne sont pas imbriquées, la perte des informations d'amplitude n'empêche pas l'obtention de taux d'erreur des rafales d'accès acceptables dans un récepteur AMRT (100). Le récepteur AMRT (100) détermine le type de rafale (soit par connaissance a priori, soit par détermination dynamique du type de rafale) et un commutateur de sélection (124) sélectionne la voie (116, 117) de réception à démoduler.

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