发明授权
- 专利标题: DL MU-MIMO operation in LTE-A
- 专利标题(中): LTE-A中的DL MU-MIMO操作
-
申请号: US12857112申请日: 2010-08-16
-
公开(公告)号: US09137802B2公开(公告)日: 2015-09-15
- 发明人: Stefan Geirhofer , Amir Farajidana , Tingfang Ji , Alexei Yurievitch Gorokhov , Anastasios Stamoulis
- 申请人: Stefan Geirhofer , Amir Farajidana , Tingfang Ji , Alexei Yurievitch Gorokhov , Anastasios Stamoulis
- 申请人地址: US CA San Diego
- 专利权人: QUALCOMM Incorporated
- 当前专利权人: QUALCOMM Incorporated
- 当前专利权人地址: US CA San Diego
- 代理商 Tyler J. Overall
- 主分类号: H04W4/00
- IPC分类号: H04W4/00 ; H04W72/04 ; H04W72/08
摘要:
Techniques for scheduling UEs are described. In one design, a scheduler (e.g., for a cell) may receive channel direction information (CDI) and channel strength information (CSI) from a plurality of UEs. In one design, the CDI from each UE may include at least one eigenvector, and the CSI from each UE may include at least one singular value corresponding to the at least one eigenvector. The scheduler may schedule at least one UE among the plurality of UEs for data transmission based on the CDI and CSI from the plurality of UEs. The scheduler may select the at least one UE based on a metric related to signal-to-leakage ratio (SLR), or spectral efficiency, etc. In one design, the scheduler may evaluate the performance of different sets of UEs to determine whether to schedule one UE for single-user MIMO or multiple UEs for multi-user MIMO.
公开/授权文献
- US20110194593A1 DL MU-MIMO operation in LTE-A 公开/授权日:2011-08-11
信息查询