公开(公告)号：DE69224451T2

公开(公告)日：1998-09-24

申请号：DE69224451

申请日：1992-06-25

Applicant: IBM

Inventor： AMES RICHARD NORMAN ,  KLUDT THOMAS WARREN ,  MOORE VICTOR STUART

IPC: H04B7/26 ,  H04L12/28 ,  H04W84/16

Abstract: A digital communication network has a plurality of remote terminals (RTs) which communicate with a plurality of base stations (BSs) by radio links operating at a single frequency. Each RT monitors the signal strengths of outbound messages and keeps an ordered table indicating which BSs produce the highest strength signals. At sign-on, an RT sends a message to the BS at the top of the list. The message includes the first predetermined number of entries at the top of the list. Each BS monitors the number of RTs it can hear and the number of users attached to each BS. The BS to which the sign-on message is sent then decides on the basis of signal strength, number of users attached, and BS coverage which BS should be attached to the particular RT and then notifies a communications controller. Such decision thus levels the workload. Each RT monitors errors and requests re-evaluation of attachment when the error rate for the BS to which it is attached exceeds a predetermined value.

公开(公告)号：DE69224451D1

公开(公告)日：1998-03-26

申请号：DE69224451

申请日：1992-06-25

Applicant: IBM

Inventor： AMES RICHARD NORMAN ,  KLUDT THOMAS WARREN ,  MOORE VICTOR STUART

IPC: H04B7/26 ,  H04L12/28 ,  H04W84/16

Abstract: A digital communication network has a plurality of remote terminals (RTs) which communicate with a plurality of base stations (BSs) by radio links operating at a single frequency. Each RT monitors the signal strengths of outbound messages and keeps an ordered table indicating which BSs produce the highest strength signals. At sign-on, an RT sends a message to the BS at the top of the list. The message includes the first predetermined number of entries at the top of the list. Each BS monitors the number of RTs it can hear and the number of users attached to each BS. The BS to which the sign-on message is sent then decides on the basis of signal strength, number of users attached, and BS coverage which BS should be attached to the particular RT and then notifies a communications controller. Such decision thus levels the workload. Each RT monitors errors and requests re-evaluation of attachment when the error rate for the BS to which it is attached exceeds a predetermined value.