Method and apparatus for aiding the establishment of the multicast backhaul in the fixed network for mobile multicast service

摘要

Method and apparatus for decreasing multi-cell feedback overhead is provided in the present invention. Wherein a mobile user terminal equipment utilizes a first period to feedback short-term channel direction information of a serving base station, utilizes a second period to feedback long-term channel direction information of neighboring base stations, further, the mobile user terminal equipment utilizes a third period to feedback long-term relative amplitude information, utilizes a fourth period to feedback short-term relative phase information, wherein the first period is shorter than the second period, and the third period is longer than the fourth period.

主权项

1. A method, in a mobile base station, of aiding an upper network device in a fixed network to establish multicast backhaul in the fixed network for a mobile user terminal equipment, dominated by the mobile base station, to access multicast service of a mobile core network, the method comprising:
obtaining, from the mobile user terminal equipment, a multicast join message requesting a mobile multicast service; obtaining a feedback message from the mobile core network upon obtaining the multicast join message, the feedback information including information that the mobile core network has already established wireless multicast bearer for the mobile user terminal equipment; and sending the multicast join message to the upper network device based on the multicast join message and the feedback message, so as to aid the upper network device to establish the multicast backhaul in the fixed network.