Method and an apparatus for allocating an ACK/NACK channel
US8817673B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 8, 2011 |
| Grant date | Aug 26, 2014 |
| Priority date | — |
| Expiry date | Oct 22, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W72/20
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method for allocating an Acknowledgement/Negative Acknowledgement (ACK/NACK) channel by a Base Station (BS) in a Frequency Division Duplexing (FDD) system is provided. The method includes allocating downlink resources in one or more cells to a User Equipment (UE), transmitting, Physical Downlink Control Channel (PDCCH) information and downlink data using the downlink resources, allocating at least four ACK/NACK channels to the UE, receiving ACK/NACK information for the PDCCH information and the downlink data fed back by using two antennas from the UE, and performing re-transmission or transmitting new data according to the ACK/NACK information, wherein at least two of the at least four ACK/NACK channels are the same as at least two ACK/NACK channels allocated by the BS in a mode not using a Spatial Orthogonal Resource Transmit Diversity (SORTD) scheme, and the at least two of the at least four ACK/NACK channels are allocated to different antennas.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.