Sending method, apparatus and system for uplink control channel

Abstract

The present invention discloses a method for transmitting uplink control channel, a device and a system thereof. In the solution of the invention, after the CCE index and UE corresponding with the first CCE of PDCCH corresponding to the PDSCH resource allocation transmit the PUCCH resource index implicit mapping of PUCCH resource of HARQ-ACK package information, the RB indexes of resource block RB of PUCCH resource which transmits HARQ-ACK package information between two different time slots are respectively RB1,k and RB2,k, k, wherein k is selected from the range from 0 to N-1, and wherein N is the number of carrier component comprising PDSCH. The HARQ-ACK package information is transmitted selectively in the PUCCH resource corresponding with PDSCH on the K'-th carrier component, and k' satisfies the following relationship: k'=arg max(Metric(k)), wherein Metric(k)=abs(RB1,k-RB2,k). The PUCCH resource index of PUCCH resource is nPUCCH, k'. The maximum of RB index difference value means the maximum span length of frequency resource corresponding with two time slots on the frequency domain, thereby a larger frequency diversity gain can be obtained thereby enhancing the transmission efficiency of PUCCH and the transmission quality of whole transmission system is increased.

Description

technical field [0001] The present invention relates to the communication field, in particular to a method, device and system for sending an uplink control channel. Background technique [0002] Compared with the existing system, the Advanced International Mobile Telecommunications (IMT-Advanced, International MobileTelecommunications-Advanced) system will achieve higher data rate and larger system capacity, that is, the peak rate can reach 1Gbit in the case of low-speed mobile and hotspot coverage / s, the peak rate can reach 100Mbit / s in the case of high-speed mobile and wide-area coverage. In order to meet the requirements of the Advanced International Telecommunications Union (ITU-Advanced, International Telecommunication Union-Advanced), as the Long Term Evolution (LTE, Long Term Evolution) Advanced Long Term Evolution standard (LTE-A, LTE-Advanced), the LTE-A system is adopted It is required to support a larger system bandwidth, up to 100MHz, and it is backward compati...

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Problems solved by technology

[0005] The selection of PUCCH resources for sending HARQ-ACK packet information mainly includes the following methods: one is to notify the n of sending HARQ-ACK packet information through high-layer signaling PUCCH (1) , although such a processing method has certain flexibility, it increases signaling overhead and system complexity; the second is to fixedly designate a PUCCH resource corresponding to a certain downlink carrier component to send HARQ-ACK packet information, but such processing The method lacks certain flexibility, which may cause the HARQ-ACK information after bundling to be sent on PUCCH resources with poor channel conditions; moreover, it is to use the method in LTE Time Division Duplexing (TDD, Time Division Duplexing), that is, adopt The last subframe in the Bundling window sends HARQ-ACK packet information. However, since multiple downlink carriers in the LTE-A system are scheduled at the same time, there is no last one in time. Even if the downlink carriers are sorted and numbered , using the PUCCH resource corresponding to the PDSCH on the downlink carrier with the largest or smallest number in the Bundling window to send HARQ-ACK packet information, it is also impossible to guarantee that the selected PUCCH resource has better channel conditions

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