US 5,708,968 AGranted

Channel segregation method

AssigneeNippon Mobile Communications

InventorHiroshi Suzuki

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Abstract

The minimum CIR value that permits a channel allocation to a call is defined as a threshold value .LAMBDA..sub.c1 and a CIR value a little larger than it is defined as a threshold value .LAMBDA..sub.c2. The CIR value in each idle channel is measured. When the measured CIR value is below the threshold value .LAMBDA..sub.c1, the priority of that channel is decreased; when the CIR value is between the threshold values .LAMBDA..sub.c1 and .LAMBDA..sub.c2, the priority is increased; and when the CIR value is above the threshold value .LAMBDA..sub.c2, the priority is held unchanged. When a call occurs in a base station, the highest-priority one of idle channels with the CIR values larger than the threshold value .LAMBDA..sub.c1 is allocated to that call and the priority of the allocated channel is increased.

Claims10

Dependent claims

A channel segregation method which utilizes an autonomous distributed control scheme and allows each base station to assign an idle channel of a predetermined number of channels to a call according to their priorities, said method comprising the steps of:

(a) presetting a first threshold value and a second larger threshold value with respect to a carrier power versus interference-wave power ratio CIR, defining a first range of said CIR value smaller than said first threshold value, a second range of said CIR value between said first and second threshold values and a third range of said CIR value larger than said second threshold value, and predetermining an increasing/decreasing function which takes at least a first value in said first CIR range and at least a second value opposite in polarity to said first value in said second CIR range;
(b) measuring said CIR value for each channel at every predetermining timing;
(c) when said CIR value is within said first CIR range, decreasing the priority of said channel by at least the value of said increasing/decreasing function corresponding to said first value;
(d) when said measured CIR value is within said second CIR range, increasing the priority of said channel by at least the value of said increasing/decreasing function corresponding to said second value;
(e) when said measured CIR value is within said third CIR range, maintaining the previous priority of said channel unchanged;
and
(f) when said idle channel is assigned to said call on the basis of the priority of said each channel, increasing the priority of said assigned channel.

4 more elements

(a) presetting a first threshold value and a second smaller threshold value with respect to interference-wave received power, defining a first range of said interference-wave received power larger than said first threshold value, a second range of said interference-wave received power between said first and second threshold value and a third range of said interference-wave received power smaller than said second threshold value, and predetermining an increasing/decreasing function that takes at least a first value in said first range and at least a second value opposite in polarity to said first value in said second range;
(b) measuring said interference-wave received power for each channel at every predetermined timing;
(c) when said measured interference-wave received power is within said first range, decreasing the priority of said channel by at least the value of said increasing/increasing function corresponding to said first value;
(d) when said measured interference-wave received power is within said second range, increasing the priority of said channel by at least the value of said increasing/decreasing function corresponding to said second value;
(e) when said measured interference-wave received power is within said third range, maintaining the previous priority of said channel unchanged;
and
(f) when said idle channel is assigned to said call on the basis of said priority of said each channel, increasing the priority of said assigned channel.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 08/530,194Filed 2 Oct 1995
Priority: JP 7-14033822 Jun 1994
Granted: 13 Jan 1998
Term ends: Not estimatedThe source records don’t support an estimate.

Classification5 codes

H04W 16/04
Resource partitioning among network components, e.g. reuse partitioning: traffic adaptive resource partitioning
H04W 16/10
Resource partitioning among network components, e.g. reuse partitioning: dynamic resource partitioning
H04W 16/12
Resource partitioning among network components, e.g. reuse partitioning: fixed resource partitioning
H04W 16/32
Cell structures: hierarchical cell structures

Family

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