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Patent Searching and Data


Title:
PORTABLE RADIO TELEPHONE AND OPERATING METHOD THEREFOR
Document Type and Number:
Japanese Patent JPH08251651
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To perform effective allocation of time slots in a base station by storing information rejected slots and checking slots in a prescribed sequence. SOLUTION: A portable radio telephone 5 performs two-way radio communication with either of base stations 1 and 2 which offer services to cells 3 and 4 respectively in a digital radio telephone system such as a DECT that uses a TDMA transmission. The DECT system uses ten carrier frequencies, performs time division in a frame that has 10 ms time width and further divides each frame into twelve numbered time slots in each transmission and receiving. Here, the telephone 5 selects, e.g. the station 1, accepts current blind slot information and loads a blind slot mask on a storing means of a handset. Next, it successively refers to a blind slot mask, e.g. from a 1st time slot and checks a channel.

Inventors:
NIYUIAN KUAN TATO
ROBAATO SUTANRII SONDAASU
Application Number:
JP107496A
Publication Date:
September 27, 1996
Filing Date:
January 09, 1996
Export Citation:
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Assignee:
NOKIA MOBILE PHONES LTD
International Classes:
H04B7/24; H04J4/00; H04W48/16; H04W72/02; H04W36/08; H04W48/08; H04W72/08; (IPC1-7): H04Q7/28; H04B7/24
Attorney, Agent or Firm:
Minoru Nakamura (6 outside)