Title:
多重音声通信やデータ通信を単一又は複数チャンネルにより同時に行うための無線ディジタル加入者電話システム
Document Type and Number:
Japanese Patent JP4059419
Kind Code:
B2
Abstract:
A master station communicates with the main network, whilst a set of mobile or fixed sub stations of voice or data users share the channel using time division multiplexing. The number of time division channels available depends on the quality of the transmission links, power and modulation index. The rate of errors is detected to maintain a specified condition of operation. When all available channels are occupied a busy signal is transmitted by the master station. The effect of multiplexing on the sub-links gives apparent simultaneous bidirectional transmission.
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Inventors:
Eric Panes
Mark Jay Hansel
Mark Jay Hansel
Application Number:
JP2000142479A
Publication Date:
March 12, 2008
Filing Date:
May 15, 2000
Export Citation:
Assignee:
Interdigital Technology Corporation
International Classes:
H04J3/00; H04B7/005; H04L65/00; H04B7/04; H04B7/08; H04B7/26; H04J3/06; H04J4/00; H04L1/00; H04L1/06; H04L1/16; H04L1/18; H04L5/14; H04L5/22; H04L12/56; H04L27/18; H04M1/00; H04M3/00; H04M11/06; H04Q3/42; H04Q3/58; H04Q3/62; H04Q11/04; H04W4/18; H04W28/06; H04W36/06; H04W40/02; H04W56/00; H04W72/04; H04W72/12; H04W74/00; H04W74/04; H04W84/08; H04W84/14; H04W88/02; H04W88/08; H04J3/16; H04M11/00; H04W12/02; H04W12/10; H04W28/04; H04W28/14; H04W28/24; H04W28/26; H04W36/12; H04W52/00; H04W76/02; H04W84/00; H04M
Domestic Patent References:
| JP4847752A | ||||
| JP56140730A |
Other References:
木下耕太、秦正治、平出賢吉「TD-FDMA移動通信方式の検討」、電子通信学会論文誌、Vol.J64-B、No.9、昭和56年9月25日、p.1016-1023
Attorney, Agent or Firm:
Shin Uchihara