Fractional reuse through channel allocation tiering
First Claim
1. A method for increasing the spectral efficiency of a wireless telecommunications system within a cell, said method comprising the steps of:
- dividing a plurality of channels within the cell of said wireless telecommunications system into a plurality of logical groups for the cell;
mapping a first group of said plurality of logical groups onto a first plurality of radio resources within the cell; and
mapping at least one other group of said plurality of logical groups for the cell onto a second plurality of radio resources within the cell, at least one radio resource in said second plurality of radio resources corresponding to at least one radio resource in said first plurality of radio resources, wherein said steps of mapping said first group and mapping said at least one other group are performed according to a communication measure, where the communication measure is selected from the group consisting of;
current load in said plurality of logical groups, prevailing quality of active service sessions, Quality-of-Service requirements of service sessions, directions of users with respect to a base station, distance of users from a base station, path loss of users from a base station, users received signal strengths, geographical distance from users to a cell border, radio distance from users a cell border and any combination of communication measures.
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Abstract
A cellular telecommunications method and system for fractional reuse of resources through channel allocation tiering, thereby increasing the spectral efficiency of the telecommunications system. A number of available channels in a cell are divided into logical groups, each of which share the same radio resources. The system reduces or eliminates interference using a number of techniques, such as interference diversity, interference suppression and/or interference avoidance. This utilization of resources in the system will create a spectrally efficient network or cell and enable a reuse less than one.
66 Citations
16 Claims
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1. A method for increasing the spectral efficiency of a wireless telecommunications system within a cell, said method comprising the steps of:
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dividing a plurality of channels within the cell of said wireless telecommunications system into a plurality of logical groups for the cell;
mapping a first group of said plurality of logical groups onto a first plurality of radio resources within the cell; and
mapping at least one other group of said plurality of logical groups for the cell onto a second plurality of radio resources within the cell, at least one radio resource in said second plurality of radio resources corresponding to at least one radio resource in said first plurality of radio resources, wherein said steps of mapping said first group and mapping said at least one other group are performed according to a communication measure, where the communication measure is selected from the group consisting of;
current load in said plurality of logical groups, prevailing quality of active service sessions, Quality-of-Service requirements of service sessions, directions of users with respect to a base station, distance of users from a base station, path loss of users from a base station, users received signal strengths, geographical distance from users to a cell border, radio distance from users a cell border and any combination of communication measures. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A wireless telecommunications system for increasing the spectral efficiency of a cell within a wireless telecommunications system, said system comprising;
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a divider for dividing a plurality of channels within a cell of said wireless telecommunications system into a plurality of logical groups for the cell;
mapping means for mapping said plurality of logical groups onto a plurality of radio resources for the cell, and a determining means for determining a communication measure used to aid said mapping means in mapping said plurality of logical groups onto said plurality of radio resources where the communication measure is selected from the group consisting of;
current load in said plurality of logical groups, prevailing quality of active service session, Quality-of-Service requirements of service sessions, directions of users with respect to a base station, distance of users from a base station, path loss of users from a base station, users received signal strengths, geographical distance from users to a cell border, radio distance from users to a cell border and any combination of communication measures. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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Specification