Method of arranging radio control channels in mobile communications

• US 5,081,704 A
• Filed: 09/19/1990
• Issued: 01/14/1992
• Est. Priority Date: 09/19/1989
• Status: Expired due to Term

• Current Assignee: Nippon Telegraph and Telephone Corporation
• Original Assignee: Nippon Telegraph and Telephone Corporation
• Inventors: Seizo, Onoe, Takanori, Utano, Umeda, Narumi
• Primary Examiner(s): Kuntz, Curtis
• Assistant Examiner(s): Pham, Chi H.
• Application Number:
  US07/584,977
• Time in Patent Office: 482 Days
• Field of Search: 455/33, 455/36, 455/53, 455/54, 455/56, 455/38, 370/50, 370/93, 370/95.1, 370/95.3, 370/110.1, 379/63, 379/59, 379/60
• US Class Current: 455/450
• CPC Class Codes: H04W 48/20 Selecting an access point
• CPC Class Codes: H04W 68/00 User notification, e.g. alerting and paging, for incoming communication, change of service or the like
• CPC Class Codes: H04W 74/08 Non-scheduled access, e.g. ALOHA hybrid access H04W74/02

Abstract

According to a method of arranging radio control channels in mobile communications, for covering a service area with a plurality of radio zones and causing base and mobile stations to exchange signals through the control channels, a broadcasting information transmission portion is assigned to the control channels. This broadcasting information is to be transmitted from the base station to each mobile station to broadcast information associated with radio zones. Information associated with control channel structure in units of base stations is broadcast to the broadcasting information transmission portion. A frequency and a time slot capable of causing the base station and the each mobile station to exchange the signals are determined on the basis of the pieces of broadcasting information and an identical number commonly recognized by the base and mobile stations.

Claims

1. A method of arranging radio control channels in mobile communications, for covering a service area with a plurality of radio zones and causing base and mobile stations to exchange signals through the control channels, comprising the steps of:

assigning a broadcasting information transmission portion to the control channels;

broadcasting from the base station of a given radio zone specific broadcasting channel information contained in the broadcasting information transmission portion, said specific broadcasting channel information being associated with a given radio zone containing the base station; and

using the specific broadcasting channel formation received by a given mobile station and a mobile station identification number commonly recognizable by said base station and said given mobile station to determine a frequency and a time slot capable of enabling the base station and said given mobile station to exchange the signals.

2. A method according to claim 1, wherein the specific types of broadcasting channel information associated with the control channel structure in said broadcasting information transmission portion are identical in all base stations.

3. A method according to claim 1, wherein the specific types of broadcasting channel information associated with the control channel structure in said broadcasting information transmission portion are different in all base stations.

4. A method according to claim 1, wherein the signals exchanged by the base station and said given mobile station include a paging signal specifically associated to said given mobile station.

5. A method according to claim 4 further including the step of enabling said given mobile station to additionally monitor portions of radio channels corresponding to other radio zones and received by said given mobile station non-contemporaneous with said paging signal.