Multiplex communications – Channel assignment techniques – Polling
Reexamination Certificate
2011-02-22
2011-02-22
Sheikh, Ayaz R (Department: 2476)
Multiplex communications
Channel assignment techniques
Polling
C370S346000
Reexamination Certificate
active
07894468
ABSTRACT:
Transmission methods for multicast messages and for signaling message responses thereto in communication systems supporting a multicast mode provide that a number of retransmissions of a multicast message may be changed based on a number of receivers of the message. Signaling messages to the multicast message may be transmitted in response to a fixed number of multicast message transmissions, and receivers that have not received the multicast message after the fixed number of transmissions may request further retransmissions up to an additional given number of times. Further, signaling messages may be transmitted at different times or staggered based on a radio condition of the receivers. For example, a first multicast message may be transmitted, and responses from groups of receivers may be listened to for a given period, after which one of a next multicast message and a portion of the first multicast message may be transmitted to the groups.
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Chuah Mooi Choo
Das Arnab
Ji Tingfang
Alcatel-Lucent USA Inc.
Harness & Dickey & Pierce P.L.C.
Ho Chuong T
Sheikh Ayaz R
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