Invention Grant
US08599952B2 MU-COMP channel state normalization measure quantization and transmission
有权
MU-COMP信道状态归一化测量量化和传输
- Patent Title: MU-COMP channel state normalization measure quantization and transmission
- Patent Title (中): MU-COMP信道状态归一化测量量化和传输
-
Application No.: US13120010Application Date: 2008-09-24
-
Publication No.: US08599952B2Publication Date: 2013-12-03
- Inventor: Peter Larsson , Jiansong Gan , Qingyu Miao
- Applicant: Peter Larsson , Jiansong Gan , Qingyu Miao
- Applicant Address: SE Stockholm
- Assignee: Telefonaktiebolaget L M Ericsson (publ)
- Current Assignee: Telefonaktiebolaget L M Ericsson (publ)
- Current Assignee Address: SE Stockholm
- Agency: Potomac Patent Group PLLC
- International Application: PCT/SE2008/051071 WO 20080924
- International Announcement: WO2010/036159 WO 20100401
- Main IPC: H04B7/02
- IPC: H04B7/02

Abstract:
Uplink overhead is significantly reduced in a MU-COMP wireless communication network by exploiting the dissimilarity of received signal strength in signals transmitted by geographically distributed transmit antennas, as seen by receiving UEs. Each UE calculates a quantized normalization measure of channel elements for a channel weakly received from a first transmitter to that for a channel strongly received from a second transmitter. The quantized normalization measure may be modeled as a ratio of complex Gaussian variables, and quantized in phase and amplitude by making simplifying assumptions. The ratios are quantized, and transmitted to the network using far fewer bits than would be required to transmit the full channel state information. The network uses the quantized normalization measures to set the transmitter weights.
Public/Granted literature
- US20110268208A1 MU-COMP Channel State Normalization Measure Quantization and Transmission Public/Granted day:2011-11-03
Information query