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''AirHop Communications'' is a privately funded American corporation based in San Diego, CA. AirHop develops radio access network (RAN) software that addresses the installation, operation and performance challenges of multi-layer deployments of small cells in 3G and 4G networks.〔(SoCalTech, 9/08/11: SoCalTech Interview with Yan Hui )〕〔(San Diego Union Tribune, 11/29/10: AirHop Aims to Unclog Wireless Jams ) 〕〔(Fierce Broadband Wireless, 9/13/09: Start-up targets LTE network automation )〕 AirHop’s customers are typically base station equipment vendors for wireless network operators.〔(Xconomy, 11/24/09: AirHop, Adapting to “Dense” Wireless of the Future, Develops Self-Organizing Networking Software )〕 == Technology == AirHop holds 20 patent applications for its eSON™ self-organizing network (SON) software.〔 eSON enables carriers to build a 3G or 4G LTE heterogeneous network (“het-net”) to augment existing macro base stations. Many carriers are using small cells and self-organizing networks to fill in gaps in 3G and 4G networks due to signal attenuation and add capacity. The 3rd Generation Partnership Project (3GPP) defined a SON specification to allow basestations to discover each other when inserted into a network and to adjust their radio frequency (RF) signal strength to avoid overlap and interference.〔(Urgent Communications, 11/11/09: LTE Vendors Seek Greater Network Automation )〕〔(3GPP )〕 AirHop was founded to extend this technology beyond initial network start-up to also provide ongoing interference management and spectrum reuse.〔 This gives carriers the ability to both initialize the network and ongoing RAN intelligence to adjust signal levels as small cells come online and overlap with each other.〔(Light Reading Mobile, 10/18/10: AirHop, picoChip Scale Back to 3G ) 〕 eSON also optimizes spectrum reuse (spectral efficiency), enabling macrocells and small cells to share the same spectrum without interference (communication).〔〔(Urgent Communications, 5/18/11: Small-Cell Product Provides Operators with LTE Capacity Options )〕〔(LTE World: AirHop Announced Evolved Self-Organized Networking Solution for 4G/LTE Wireless Networks )〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「AirHop Communications」の詳細全文を読む スポンサード リンク
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