UPLINK CONTROL CHANNEL ALLOCATION

摘要

Various methods of allocating uplink control channels in a communication system (100) are implemented at a resource scheduler (107) or a user equipment (UE) (103, 105). In one method the scheduler (107) reserves resources for a downlink data channel (305) and signals a corresponding downlink data channel grant (311) and also reserves resources for a persistent uplink control channel (307) for a longer duration than the data channel grant. Signaling overhead associated with a grant for this persistent uplink control channel is reduced over a full dynamic grant. A predetermined rule (407) can be used at the scheduler and at the UE to avoid overhead signaling associated with a grant for this persistent control channel. Predetermined rules at the UE and scheduler can also be used to reserve appropriate resources (409) and select appropriate MCS levels for control information and the control information and uplink data can be transported over a common uplink channel when a time overlap occurs between an uplink data channel and the persistent control channel.