Title:
【発明の名称】無線通信システムにおけるフレキシブルな周波数/時分割2重
Document Type and Number:
Japanese Patent JP2003526955
Kind Code:
A
Abstract:
A flexible channel architecture supports full-duplex, radio-frequency communication between a base station, such as a PWT or DECT base station, and a group of remote terminals. Downlink communication from the base to the terminals is by way of a first radio-frequency carrier, and uplink communication from the terminals to the base is by way of a first radiofrequency carrier, and uplink communication from the terminals to the base is by way of a second radio-frequency carrier. Each carrier is organized to provide an N-timeslot time-division multiple access data stream (N an integer), so that together the two carriers provide a 2N-timeslot system. Within each frame, data from the base to a terminal is sent on the first carrier during a first time slot, and data from the terminal to the base is sent on the second carrier during a second time slot, the first and second time slots being offset by a time offset which can vary across communications links. The disclosed system provides a unified architecture which allows a single time-division multiple-access hardware platform to efficiently and selectively support either time-division duplex or frequency-division duplex.
Inventors:
Renzo, Michael
Shen, Kun
Shen, Kun
Application Number:
JP2000521669A
Publication Date:
September 09, 2003
Filing Date:
November 13, 1998
Export Citation:
Assignee:
Ericsson Incorporated
International Classes:
H04B7/26; H04W4/00; H04W72/04; H04W92/10; (IPC1-7): H04B7/26; H04Q7/20
Attorney, Agent or Firm:
Yasunori Otsuka (2 outside)
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