Location of packet data convergence protocol

H - Electricity – 04 – L

Patent

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H04L 29/06 (2006.01) H04L 12/56 (2006.01)

Patent

CA 2690962

A system for compressing an Internet Protocol (IP) header for a multimedia broadcast multicast service (MBMS) is provided. The system includes an access gateway and a plurality of cells, each of which has an enhanced node B (ENB). When the quantity of cells that will provide the MBMS is known to be one, execution of a packet data convergence protocol (PDCP)-based data compression function for the IP header occurs in the ENB of the one cell. When the quantity of cells that will provide the MBMS is not known to be one, execution of the PDCP-based data compression function occurs in the access gateway.

L'invention propose un système pour compresser un en-tête de protocole internet (IP) pour un service de diffusion/multi diffusion multimédia (MBMS). Le système comprend une passerelle d'accès et une pluralité de cellules qui comprennent chacune un nud B évolué (ENB). Lorsque le nombre de cellules qui fourniront le service MBMS est reconnu être égal à un, l'exécution d'une fonction de compression de données selon un protocole de convergence de données par paquets (PDCP) pour l'en-tête IP est effectuée dans le ENB de la seule cellule. Lorsque le nombre de cellules qui fourniront le service MBMS n'est pas reconnu être égal à un, l'exécution de la fonction de compression de données selon le PDCP se déroule dans la passerelle d'accès.

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