Title:
無線通信におけるハンドオーバー
Document Type and Number:
Japanese Patent JP5108033
Kind Code:
B2
Abstract:
Systems and methodologies are described that facilitate handing over mobile device communications in a wireless network from a source base station to a target base station without using a random access channel (RACH). In this regard, the source base station can request shared data bandwidth resources from the target base station on behalf of the mobile device and assign the resources to the mobile device. The mobile device can calculate a timing difference between the source and target base stations and can handover communications by transmitting over the shared data bandwidth using the timing difference to generally provide correct timing for the transmission. To this end, the target base station can have transmission time intervals where it allows transmitting with an extended cyclic prefix to ensure more reliable handover for the mobile device.
Inventors:
Damung Janovik, Alexander
Application Number:
JP2009554687A
Publication Date:
December 26, 2012
Filing Date:
March 17, 2008
Export Citation:
Assignee:
QUALCOMM INCORPORATED
International Classes:
H04W36/08; H04W36/26; H04W72/08; H04W72/12; H04W74/08
Foreign References:
| WO2001035586A1 | ||||
| US20050286465 |
Other References:
IPWireless,Contention-free Intra-LTE handover,3GPP TSG RAN WG2 #57, R2-070646,2007年 2月12日,全文、全図
Attorney, Agent or Firm:
Kurata Masatoshi
Satoshi Kono
Makoto Nakamura
Yoshihiro Fukuhara
Takashi Mine
Toshio Shirane
Sadao Muramatsu
Nobuhisa Nogawa
Kocho Chojiro
Naoki Kono
Katsu Sunagawa
Katsumura Hiro
Shoji Kawai
Tatsushi Sato
Takashi Okada
Mihoko Horiuchi
Takenori Masanori
Takuzo Ichihara
Yamashita Gen
Satoshi Kono
Makoto Nakamura
Yoshihiro Fukuhara
Takashi Mine
Toshio Shirane
Sadao Muramatsu
Nobuhisa Nogawa
Kocho Chojiro
Naoki Kono
Katsu Sunagawa
Katsumura Hiro
Shoji Kawai
Tatsushi Sato
Takashi Okada
Mihoko Horiuchi
Takenori Masanori
Takuzo Ichihara
Yamashita Gen