The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 20, 1990
Filed:
Feb. 17, 1989
Applicant:
Inventor:
Jan E Uddenfeldt, Vallingby, SE;
Assignee:
Telefonaktiebolaget L M Ericssson, Stockholm, SE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04Q / ; H04B / ; H04J / ; H04M / ;
U.S. Cl.
CPC ...
455 33 ; 370 84 ; 370 951 ; 370 953 ; 370 79 ; 455 54 ; 379 59 ; 379 60 ; 379 63 ; 375 34 ; 375 58 ;
Abstract
Method of transmitting data information in a mobile, cellular, radio communication system operating according to the TDMA principle. Within certain large cells (C2) in the system the number of calls in progress is less than the number of slots (CH1, CH2 . . . ) in each frame, where these slots have been allotted to the mobiles (M1) within the cell. The unoccupied slots thus occuring are utilised in accordance with the method such that the bit frequency (f) of the data information is reduced to a new value (f.sub.r) in response to the number of unoccupied time slots. The transmission range between mobile and base station is thus increased.