Allocation of control channel in packet radio network

H - Electricity – 04 – L

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

H04L 12/56 (2006.01) H04Q 7/38 (2006.01) H04Q 7/22 (2006.01)

Patent

CA 2254142

A method for the allocation of a control channel (PACCH) to mobile stations (MS) in a packet radio system, particularly in a GPRS system. The mobile station (MS) sends a resource allocation request (3-1), to which a network (BSS) responds (3-2) by allocating to the mobile station (MS) a TFI identifier and a USF identifier. The network then sends (3-5) data packets in blocks, at least some of which comprise a polling field (S/P), a polling state ('P') which indicates that the mobile station is to acknowledge received data packets on the control channel (PACCH). To ensure that a mobile station receiving in downlink would not prevent the network from allocating one uplink mobile station to said channel, the allocation of the control channel (PACCH) is, in accordance with the invention, independent of a possible USF identifier. The mobile station acknowledges (3-6) the received data packets after a predetermined time (T) from the downlink block in which said polling field is in the polling state ('P'). The predetermined time (T) can be fixed or it can be indicated in an additional extension field (EF2).

L'invention concerne un procédé d'affectation d'une voie de commande (PACCH) à des stations mobiles (MS) dans un système de radiocommunication par paquets, particulièrement dans un système GPRS. La station mobile (MS) envoie une demande (3-1) d'affectation de ressources, à laquelle un réseau (BSS) répond (3-2) en affectant à la station mobile (MS) un identificateur TFI et un identificateur USF. Le réseau envoie ensuite (3-5) des paquets de données en blocs, dont certains au moins comprennent un champ (S/P) d'invitation à émettre, un état ('P') d'invitation à émettre qui indique que la station mobile doit accuser réception des paquets de données reçus sur la voie de commande (PACCH). Afin de s'assurer qu'une station mobile recevant en liaison aval ne va pas empêcher que le réseau affecte une station mobile en liaison amont à ladite voie de commande, l'affectation de la voie de commande (PACCH) est, selon l'invention, indépendant d'un éventuel identificateur USF. La station mobile accuse réception (3-6) des paquets de données reçus après un temps (T) prédéterminé en provenance du bloc de liaison aval dans lequel le champ d'invitation à émettre se trouve dans l'état ('P') d'invitation à émettre. Le temps (T) prédéterminé peut être fixé ou peut être indiqué dans un champ d'extension supplémentaire (EF2).

LandOfFree

Say what you really think

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

Rating

Allocation of control channel in packet radio network does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Allocation of control channel in packet radio network, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Allocation of control channel in packet radio network will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1579747

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