Title:
CDMAシステムにおける異なるプロトコル改訂の基地局間のハンドオフ
Document Type and Number:
Japanese Patent JP5107502
Kind Code:
B2
Abstract:
Techniques for supporting handoff of a terminal between base stations of different protocol revisions (P REVs) in a CDMA system. The terminal is handed off from a first base station (with a first P REV) to a second base station (with a second P REV) while it is in an active (data or voice) call with the first base station. The second P REV is later than the first P REV. The active call may be maintained between the terminal and second base station using a first service configuration previously established via the first base station for the active call. A second service configuration may be established via the second base station for the active call. This may be achieved by (1) querying the terminal, (2) assignment by the second base station, or (3) initiation by the terminal. The active call may then be maintained using the second service configuration if available.
Inventors:
Jao, Lijung
One, Jun
One, Jun
Application Number:
JP2003585467A
Publication Date:
December 26, 2012
Filing Date:
April 09, 2003
Export Citation:
Assignee:
QUALCOMM INCORPORATED
International Classes:
H04W36/00; H04J13/00; H04W36/14; H04W48/18
Domestic Patent References:
| JP2001515689A | ||||
| JP2000201369A | ||||
| JP2001285938A |
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