Method, system and network entity for indicating...

H - Electricity – 04 – H

Patent

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Details

H04H 20/65 (2009.01) H04N 7/08 (2006.01)

Patent

CA 2518034

A method for transmission, a method for reception, a system, a transmitter and a receiver for signalling a hierarchical priority mapping of a transport stream (TS) to a receiver is disclosed. A way to separate tuning information between different TSs with different priorities. In a wireless hierarchical broadband transmission, preferably based on DVB-T, one signal may carry two transport streams: low priority (LP) stream and high priority (HP) stream, and both should be identified with their own respective transport_stream_id. One bit flag is added into a certain descriptor of the broadband transmission to indicate the hierarchy of the transport stream on which said descriptor is providing information. By the appliance of this priority indication or priority flag, the receiver can obtain hierarchy mapping of each transport stream announced in the administrative information of the broadband transmission.

L'invention concerne une méthode de transmission, une méthode de réception, un système, un émetteur et un récepteur pour signaler un mappage de priorité hiérarchique d'un flux de transport (TS) à un récepteur. L'invention concerne une manière de séparer des informations d'adaptation parmi des TS différents présentant des priorités différentes. Dans une transmission à large bande hiérarchique sans fil, de préférence fondée sur DVB-T, un signal peut porter deux flux de transport: un flux de priorité faible (LP) et un flux de priorité élevé (HP), et ces deux flux doivent être identifiés par leur identifieur respectif: <= transport_stream_id >=. Une balise binaire est ajoutée à un certain descripteur de la transmission à large bande pour indiquer la hiérarchie du flux de transport sur lequel ledit descripteur fournit des informations. Par l'application de cette indication de priorité ou balise de priorité, le récepteur peut obtenir un mappage hiérarchique de chaque flux de transport annoncé dans les informations administratives de la transmission à large bande.

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