Method for communicating in a wireless communication system

• US 5,603,081 A
• Filed: 11/01/1993
• Issued: 02/11/1997
• Est. Priority Date: 11/01/1993
• Status: Expired due to Term

• Current Assignee: Telefonaktiebolaget LM Ericsson
• Original Assignee: Telefonaktiebolaget LM Ericsson
• Inventors: Marsolais, Patrice, Hoff, Anders C. E., Andersson, H.ang.kan C., Turcotte, Joseph E., Bodin, Roland S., Sammarco, Anthony J., Diachina, John W., Sawyer, Francois, Persson, Bengt, Raith, Alex K.
• Primary Examiner(s): Olms, Douglas W.
• Assistant Examiner(s): Patel, Ajit
• Application Number:
  US08/147,254
• Time in Patent Office: 1,198 Days
• Field of Search: 455/33.1, 455/33.2, 455/54.1, 455/33.4, 455/34.1, 455/53.1, 455/54.2, 455/56.1, 379/59, 379/60, 379/57, 379/58, 379/62, 379/63, 379/91, 370/95.1, 370/95.3, 370/95.2
• US Class Current: 455/435.3
• CPC Class Codes: H04B 7/2643 using time-division multiple access [TDMA] H04B7/2615, H04B7/2618 take precedence
• CPC Class Codes: H04B 7/2656 for structure of frame, burst
• CPC Class Codes: H04L 1/0002 by adapting the transmission rate
• CPC Class Codes: H04L 1/0046 Code rate detection or code type detection H04L1/0038 takes precedence; detection of the data rate H04L25/0262; for packet format H04L1/0091
• CPC Class Codes: H04L 1/0056 Systems characterized by the type of code used H04L1/08 takes precedence
• CPC Class Codes: H04L 1/0057 Block codes H04L1/0061, H04L1/0064 take precedence
• CPC Class Codes: H04L 1/0059 Convolutional codes
• CPC Class Codes: H04L 1/0061 Error detection codes
• CPC Class Codes: H04L 1/0071 Use of interleaving interleaving per se H03M13/27
• CPC Class Codes: H04L 1/0072 Error control for data other than payload data, e.g. control data
• CPC Class Codes: H04L 1/0083 Formatting with frames or packets; Protocol or part of protocol for error control
• CPC Class Codes: H04L 1/08 by repeating transmission, e.g. Verdan system H04L1/1858 and H04L1/189 take precedence
• CPC Class Codes: H04L 1/1614 using bitmaps
• CPC Class Codes: H04L 1/1685 the supervisory signal being transmitted in response to a specific request, e.g. to a polling signal
• CPC Class Codes: H04L 1/18 Automatic repetition systems, e.g. Van Duuren systems
• CPC Class Codes: H04L 1/1803 Stop-and-wait protocols
• CPC Class Codes: H04L 1/1809 Selective-repeat protocols
• CPC Class Codes: H04L 1/1848 Time-out mechanisms
• CPC Class Codes: H04L 1/188 Time-out mechanisms
• CPC Class Codes: H04L 1/20 using signal quality detector
• CPC Class Codes: H04L 2001/0093 : Point-to-multipoint
• CPC Class Codes: H04L 9/40 : Network security protocols
• CPC Class Codes: H04W 48/10 : using broadcasted information
• CPC Class Codes: H04W 48/16 : Discovering, processing access restriction or access information
• CPC Class Codes: H04W 48/20 : Selecting an access point
• CPC Class Codes: H04W 52/0212 : managed by the network, e.g. network or access point is master and terminal is slave
• CPC Class Codes: H04W 52/0245 : according to signal strength
• 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 68/025 : Indirect paging
• CPC Class Codes: H04W 88/02 : Terminal devices
• CPC Class Codes: Y02D 30/70 : in wireless communication networks

Abstract

A communications system in which information is transmitted in a plurality of time slots grouped into a plurality of superframes which are, in turn, grouped into a plurality of paging frames. A remote station receives paging messages once in each paging frame.

Claims

1. A method of registration of a remote station with a communications system comprising the steps of:

sending from said system to said station a message containing a list of communication channels in neighboring cells, an indication of whether registration is required in each of the neighboring cells and an indication of signal strength hysteresis for each neighboring cell; and

using said signal strength hysteresis for selecting one of said communication channels if registration is required in the neighboring cell.

2. A method of registering a remote station in a radiocommunication system comprising the steps of:

sending, from said system to said remote station, a list of candidate channels, said list including a registration indication associated with at least one of said candidate channels and a signal strength hysteresis associated with said at least one of said candidate channels;

using said signal strength hysteresis, based upon a value of said registration indication, to select one of said candidate channels; and

registering said remote station as indicated by said registration indication.