| 摘要 |
Group communications methods and apparatus are described. Multicast operation is supported with the transmission characteristics, e.g., transmission power level, coding rate, and/or modulation method being selected to reliably communicate information to the end nodes in the group but not necessarily to all end nodes within the cell or sector. Thus resources can be conserved by matching transmission requirements with information on the requirements of one or more group members. The requirements for reliably reaching the end node with the worst channel conditions can, and in some embodiments is, used to determine the group transmission requirements. Power level and other transmission resource allocations can change in response to changes in group membership and/or conditions corresponding to existing group members.
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