Method, system and device for transmitting uplink feedback information

摘要

There are a method, system and device for transmitting uplink feedback information by allocating a PUCCH resource to an RN device in LTE-A system so that the RN device can transmit uplink feedback information over the allocated PUCCH resource. The method according to an embodiment of the present invention includes: a base station selecting from a PUCCH resources pool at least one dedicated PUCCH resources for each RN device served by the base station and transmitting a resources index number corresponding to the PUCCH resource to the each RN device respectively in higher layer signaling, the resource index number is used for indicating the RN device to transmit the uplink feedback information over the PUCCH resources corresponding to the resources index number. In the embodiment of the present invention, a PUCCH resource can be allocated to the RN device in LTE-A system so that the RN device can transmit the uplink feedback information over the allocated PUCCH resources.

主权项

1. A method for transmitting uplink feedback information, said method comprising:
selecting from a pool of Physical Uplink Control Channel (PUCCH) resources, by a base station, at least one dedicated PUCCH resource for each Relay Node (RN) device served by the base station based upon the following conditions: when uplink feedback information received by the base station in one uplink sub-frame of a backhaul link corresponds to a downlink transmission code-word which was transmitted in a backhaul downlink sub-frame, then the base station selects from the pool of PUCCH resources one dedicated PUCCH resource for each RN device served by the base station; or when uplink feedback information received by the base station in one uplink sub-frame of a backhaul link corresponds to a plurality of downlink transmission code-words which were transmitted in a plurality of backhaul downlink sub-frames, then the base station selects from the pool of PUCCH resources a number M of dedicated PUCCH resources respectively for each RN device served by the base station, wherein M is equal to the number of downlink sub-frames corresponding to one uplink sub-frame in the backhaul link; or when uplink feedback information received by the base station in one uplink sub-frame of a backhaul link through binding corresponds to downlink transmission code-words which were transmitted in a plurality of backhaul downlink sub-frames, then the base station selects from the pool of PUCCH resources one dedicated PUCCH resource for each RN device served by the base station; or when uplink feedback information received by the base station in plurality of uplink sub-frames of a backhaul link through multiplexing corresponds to downlink transmission codewords which were transmitted in a plurality of backhaul downlink sub-frames, then the base station selects from the pool of PUCCH resources the number M of dedicated PUCCH resources respectively for each RN device served by the base station, wherein M is equal to the number of downlink sub-frames corresponding to one uplink sub-frame in the backhaul link; transmitting, by the base station, a resource index number corresponding to the determined PUCCH resource in a higher layer signaling to each RN device to instruct the RN device to determine the PUCCH resource over which uplink feedback information is to be transmitted in accordance with the resource index number.