Title:
RANDOM ACCESS CONTROL METHOD IN MOBILE COMMUNICATION SYSTEM
Document Type and Number:
Japanese Patent JP3127867
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To satisfactorily maintain a reserved communication quality by reserving a communication channel in an empty state to a base station by a mobile station and performing communication of information of voice, etc.
SOLUTION: A controlling part 140 sends an information signal that signals empty information of a frequency band for random access to each mobile station 200. Each station 200 sends a reservation packet. The part 140 of a base station 100 receives the reservation packet through random access from each station 200 in a frequency band for random access and with a diffusion code. Next, the part 140 sends information to the effect that packet transmission is permitted and signaling information which includes information that designates transmission timing and a diffusion signal to a station 200 which is the sending source of a received reservation packet. The part 140 receives a packet from the station 200 in timing designated by the signaling information and with the diffusion signal.
Inventors:
Takeyuki Kondo
Application Number:
JP32906397A
Publication Date:
January 29, 2001
Filing Date:
November 28, 1997
Export Citation:
Assignee:
NEC
International Classes:
H04J13/20; H04W28/26; H04W48/10; H04J13/00; H04W48/12; H04W74/08; H04W76/02; (IPC1-7): H04Q7/38; H04J13/00
Domestic Patent References:
| JP955693A | ||||
| JP9233051A |
Attorney, Agent or Firm:
Nobuo Takahashi (3 outside)