Improving channel quality in wireless communications

H - Electricity – 04 – Q

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

H04Q 7/30 (2006.01) H04L 1/00 (2006.01) H04Q 7/38 (2006.01)

Patent

CA 2319439

A system and method in a wireless communications environment maximizes voice quality in low capacity situations. A Mobile services Switching Centre (MSC) that is associated with a base station (110) of a cell (100) is capable of assigning (220) speech calls of mobile terminals (120-180) to either a full- rate (FR)(240) or a half-rate (250) (HR) channel. The FR channels provide better transmitted voice quality but consume twice the bandwidth (two time slots versus only one for HR channels). When occupied cell capacity (210) is low, an MSC assigns connections to FR (240) channels. After occupied cell capacity (210) reaches a predetermined threshold (230) value, the MSC assigns connections to HR (250) channels whenever possible. Also, handover procedures can reclaim available capacity by switching a connection from a FR to a HR channel. The superior voice quality of the FR channels are therefore provided to mobile terminal users more often.

L'invention concerne un système et un procédé dans un environnement de radiocommunication. Ce système maximise la qualité de la voix dans les cas de faible capacité. Un centre de commutation pour les services mobiles (MSC), associé à une station de base (110) d'une cellule (100), est capable d'affecter (220) des appels vocaux provenant de terminaux mobiles (120-180) à un canal mi-débit (HR) (250) ou plein débit (FR) (240). Les canaux FR fournissent une meilleure qualité de voix transmise mais consomment deux fois la largeur de bande (deux créneaux temporels versus seulement un pour les canaux HR). Lorsque la capacité de cellule occupée (210) est faible, un MSC affecte les communications aux canaux FR (240). Dès que la capacité de cellule occupée (210) atteint une valeur de seuil (230) prédéterminée, le MSC affecte si possible les communications aux canaux HR (250). Les procédures de transfert peuvent réclamer une capacité disponible en commutant une communication d'un canal FR à un canal HR. La qualité de voix supérieure des canaux FR est ainsi plus souvent mise à la disposition des utilisateurs de terminaux mobiles.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Improving channel quality in wireless communications does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Improving channel quality in wireless communications, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Improving channel quality in wireless communications will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1686301

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.