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Patent Searching and Data


Title:
AUTONOMOUS DOWNLINK CODE SELECTION FOR FEMTO CELLS
Document Type and Number:
Japanese Patent JP2014090472
Kind Code:
A
Abstract:

To provide a method for autonomously choosing downlink codes for femtocells in a wireless communication environment.

Downlink transmission information is received from Home NodeBs that are neighbors of the femtocell and macrocell base stations near the femtocell. The downlink transmission information is evaluated to recognize a first set of detected downlink codes that each have a pilot energy above a predetermined detection threshold. An optimal downlink code is selected for use in connection with serving user equipment of the femtocell, where the optimal downlink code is based upon the first set of detected downlink codes and selected as a downlink code from a set of downlink codes reserved for the femtocell. The optimal downlink code may be an available downlink code with a smallest amount of detected energy or a randomly selected downlink code from the available downlink codes.


Inventors:
YAVUZ MEHMET
NANDA SANJIV
Application Number:
JP2013264384A
Publication Date:
May 15, 2014
Filing Date:
December 20, 2013
Export Citation:
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Assignee:
QUALCOMM INC
International Classes:
H04W72/04; H04W84/10
Domestic Patent References:
JP2007329758A2007-12-20
JPH08331128A1996-12-13
JP2009510970A2009-03-12
Foreign References:
WO2007040450A12007-04-12
Other References:
JPN6014037368; 3GPP TR 25.820 V8.0.0 , 200803
Attorney, Agent or Firm:
蔵田 昌俊
福原 淑弘
野河 信久
峰 隆司
河野 直樹
砂川 克
井関 守三
赤穂 隆雄
井上 正
佐藤 立志
岡田 貴志
堀内 美保子