Invention Grant
- Patent Title: Intra-frequency load balancing method and apparatus thereof
- Patent Title (中): 频率内负载平衡方法及其装置
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Application No.: US14111791Application Date: 2012-02-29
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Publication No.: US09432880B2Publication Date: 2016-08-30
- Inventor: Zhang Zhang , Jinhua Liu
- Applicant: Zhang Zhang , Jinhua Liu
- Applicant Address: SE Stockholm
- Assignee: TELEFONAKTIEBOLAGET L M ERICSSON
- Current Assignee: TELEFONAKTIEBOLAGET L M ERICSSON
- Current Assignee Address: SE Stockholm
- Agency: Patents on Demand P.A.
- Agent Brian K. Buchheit; Scott M. Garrett
- Priority: CN201110111187 20110422
- International Application: PCT/CN2012/071783 WO 20120229
- International Announcement: WO2012/142876 WO 20121026
- Main IPC: H04W28/08
- IPC: H04W28/08 ; H04B7/04 ; H04B7/06 ; H04W16/28

Abstract:
The present disclosure provides an uplink intra-frequency load balancing method. The uplink intra-frequency load balancing can be performed by adjusting a beam direction of a User Equipment UE. For each of UEs, the method comprises steps of: determining a cell load level of each cell based on an uplink load measurement received from base stations of a plurality of cells; determining a beam-forming capability of the UE based on a beam-forming gain of the UE; and calculating a cell balancing parameter for each of the plurality of cells, according to a common pilot channel CPICH quality report measured by the UE, the cell load levels of the plurality of cells and the beam-forming capability of the UE, so as to determine a beam-forming control cell towards which the beam direction of the UE is directed, the beam-forming control cell being a cell which has an optimal cell balancing parameter among the plurality of cells. The present disclosure further provides, for a UE which supports a CLBF mode but is not in the CLBF mode, a method for selectively activating the CLBF mode so as to enhance the effect of load balancing. The present further provides an uplink intra-frequency load balancing apparatus.
Public/Granted literature
- US20140050089A1 Intra-Frequency Load Balancing Method and Apparatus Thereof Public/Granted day:2014-02-20
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