Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
FREQUENCY HOPPING IN DIGITAL CELLULAR NETWORK
Document Type and Number:
Japanese Patent JPH07307716
Kind Code:
A
Abstract:
PURPOSE: To provide a circuit for realizing frequency hopping in a time-division multiple access system. CONSTITUTION: A microprocessor 21 decides a frequency to be transmitted and received in a specific multi-address communication frame. A dual port random access memory 22 constitutes an interface between a microprocessor and a time-division multiple bus 40, and time slots are arranged in each address of a memory. Plural transceivers 50-53 connected with the bus 40 are transmitted and received with designated different frequencies, and those transceivers are selected by a specific user in the specific multi-address communication frame based on the place of a memory selected by the microprocessor.

Inventors:
PABAN KEE GUPUTA
MOZANMIRU FUSAIN
DESUMONDO ANDORUU RII
HAIMU SHIYAROMU NAA
Application Number:
JP12451095A
Publication Date:
November 21, 1995
Filing Date:
April 26, 1995
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
AMERICAN TELEPHONE & TELEGRAPH
International Classes:
H04J4/00; H04B7/26; H04J3/00; H04J13/00; H04J13/06; H04W88/08; (IPC1-7): H04J4/00; H04J3/00; H04Q7/36
Attorney, Agent or Firm:
Hirofumi Mimata