método para alocação de largura de banda em um servidor de alocação de largura de banda de uma rede de vídeo digital, servidor do alocação de largura de banda, método e aparelho para reservar largura de banda em uma rede de vídeo digital, conversor de topo de aparelho, e, aparelho de televisão.

摘要

Where a restricted channel links a subscriber location and an access node of a digital video network, a bandwidth allocation server may receive a bandwidth reservation request to reserve bandwidth on the restricted channel that includes a reservation start time. The bandwidth allocation server can obtain any existing bandwidth reservations for bandwidth on the restricted channel at least partly covered by the duration of the reservation request (the duration being delimited by the reservation start time), and determine whether a bandwidth limit is exceeded by a combination of the bandwidth reservation request and any existing bandwidth reservations, at any time covered by the bandwidth reservation request. When it is determined that the combination is under the bandwidth limit, a reservation accept response can be sent and a reservation can be stored. Otherwise, a reservation reject response can be sent.