发明名称 |
Allocating a control channel for carrier aggregation |
摘要 |
Methods for allocating a physical downlink control channel (PDCCH) to reduce a number of PDCCH candidates in a search space for carrier aggregation on a user equipment (UE) are disclosed. The method comprises the step of selecting a control channel element (CCE) aggregation level for a PDCCH allocation for each of a plurality of user equipments (UEs) at an evolved NodeB (eNB). The operation of identifying a transmission mode for each of a plurality of component carriers (CCs) associated with the PDCCH at the eNB follows. The next operation of the method is assigning each CC's downlink control information (DCI) into CCEs in a PDCCH search space in the PDCCH starting at a CCE location based on the CC's transmission mode and the CCE aggregation level for the UE receiving the CC. |
申请公布号 |
US8843168(B2) |
申请公布日期 |
2014.09.23 |
申请号 |
US201113275608 |
申请日期 |
2011.10.18 |
申请人 |
Intel Corporation |
发明人 |
Wang Ping |
分类号 |
H04W48/12;H04L5/00;H04L12/835;H04W72/04;H04L12/841;H04L12/801;H04W28/12;H04W36/22 |
主分类号 |
H04W48/12 |
代理机构 |
Thorpe North & Western, LLP |
代理人 |
Thorpe North & Western, LLP |
主权项 |
1. A method for allocating a control channel to reduce a number of control channel candidates in a search space for carrier aggregation in a mobile communication system, comprising:
selecting a control channel element (CCE) aggregation level for a control information allocation for a user equipment (UE) at an evolved NodeB (eNB); identifying a value selected from at least one of a transmission mode of each of a plurality of component carriers (CCs), a carrier index (CI) in a downlink control information (DCI) format for of each of the plurality of CCs, and a DCI size of each of the plurality of CC's control information determined by the transmission mode, wherein each CC is associated with a physical downlink control channel (PDCCH); and assigning, at the eNB, each CC's control information into CCEs in a search space in the control channel starting at a CCE location based on a value identified for a CC and the CCE aggregation level for the UE receiving the CC. |
地址 |
Santa Clara CA US |