Patent ID: 8514763
Filing Date: 2013-08-20
Classification: H04L

Abstract:
1. A method, said method comprising receiving a multicast block acknowledgement request signal, said multicast block acknowledgement request signal including a field to indicate a multicast traffic stream identification for which a multicast block acknowledgement is requested, a field to indicate a sequence number of a first frame for which the multicast block acknowledgement is requested, and a field to indicate a list of receivers that are requested to respond with the multicast block acknowledgement, and a multicast receiver address field to indicate a list of receivers that are requested to respond with the multicast block acknowledgement, wherein said multicast receiver address field is one of a list of addresses of said list of receivers and a bitmap control field and a partial virtual bitmap, wherein each bit in said bitmap control field identifies a receiving station from which the multicast block acknowledgement request is requested, said bitmap control field containing a bitmap offset corresponding to a base association identifier divided by 16.