Method for transmitting uplink response signals, base station, mobile station and communication system

摘要

A method for transmitting uplink response signals, base station, mobile station and communication system, includes judging whether to use a downlink secondary component carrier to transmit data to a mobile station; if the judging result is positive, allocating resources according to the number of transmission blocks for transmitting the downlink data in the secondary component carrier, accordingly the mobile station is able to use the resources corresponding to a preconfigured primary component carrier and the resources allocated to the secondary component carrier to select uplink resources for transmitting response signals.

主权项

1. A method for transmitting uplink response signals, comprising:
judging whether to use a downlink secondary component carrier to transmit data to a mobile station; if the judging result is positive, allocating resources according to the number of transmission blocks for transmitting the downlink data in the secondary component carrier, such that the mobile station is able select uplink resources for transmitting response signals from available resources and select corresponding modulation symbols, wherein, the available resources include resources corresponding to a preconfigured primary component carrier and the resources allocated to the secondary component carrier; wherein selecting the uplink resources for transmitting the response signals from the available resources and selecting corresponding modulation symbols comprises: selecting the uplink resources for transmitting the response signals and the modulation symbols based on a preconfigured mapping relation between a state of the response signals and the available resources and the modulation symbols according to the state of the response signals; wherein the mapping relation includes cases in which the resource corresponding to the response signal that is NACK/DTX is not selected; where NACK represents Negative Acknowledgement, and DTX represents Discontinuous Transmission; and when the response signals are all DTX, no resource is selected.