Method and apparatus of assigning and sharing channels in a cellular communication system
First Claim
1. A method of permitting real-time borrowing of channel, in a cellular communication system having a plurality of distinct channels, the cellular communication system having a plurality of substantially similar cell clusters, each cell cluster having a plurality of cells wherein each cell has at least one base station capable of sending and receiving transmissions, each cell having a plurality of adjacent cells, the method comprising the steps of:
- determining a total number of distinct channels (CT) available for use by the cellular communication system, the total number of distinct channels being at most equal to the plurality of distinct channels;
specifying a cell cluster size (N) for the cellular communication system where N=the number of cells in a cell cluster;
selecting N disparate groups of channels from the total number of distinct channels, each channel within the N disparate groups of channels being substantially distinct from any other channel within the N disparate groups of channels;
respectively assigning the N disparate groups of channels to the N cells of each cell cluster wherein one channel group is assigned to each cell; and
segmenting the group of channels assigned to each respective cell into a plurality of channel sub-groups assigned for lending to a predetermined adjacent cell, the number of channel sub-groups respectively corresponding to at least the plurality of adjacent-cells, the channels of each of the channel sub-groups being respectively designated for lending from the respective cell to said predetermined adjacent cell.
1 Assignment
0 Petitions
Accused Products
Abstract
A method of assigning and sharing channels in a cellular communications system having a plurality of cells forming a plurality of cell clusters of size N. Each cell has at least one base station capable of sending and receiving signals and each cell has a plurality of adjacent cells. A plurality of distinct channels are allotted for use by the system and divided into N groups which are assigned among the N cells of each cell cluster so that each cell cluster has a substantially similar assignment of distinct channel groups. Each group of distinct channels is divided into a plurality of channel subgroups wherein each subgroup of channels of a cell substantially corresponds to an adjacent cell. The subgroups of channels are respectively designated for borrowing by cells adjacent to a corresponding cell. When all of the channels assigned to a cell are utilized, a channel can be borrowed at limited transmitted power, from a corresponding subgroup of channels of an adjacent cellular gateway. The borrowed channel is used with limited transmitted power so that co-channel interference caused by the channel borrowing is essentially the same as that without channel borrowing.
-
Citations
19 Claims
-
1. A method of permitting real-time borrowing of channel, in a cellular communication system having a plurality of distinct channels, the cellular communication system having a plurality of substantially similar cell clusters, each cell cluster having a plurality of cells wherein each cell has at least one base station capable of sending and receiving transmissions, each cell having a plurality of adjacent cells, the method comprising the steps of:
-
determining a total number of distinct channels (CT) available for use by the cellular communication system, the total number of distinct channels being at most equal to the plurality of distinct channels; specifying a cell cluster size (N) for the cellular communication system where N=the number of cells in a cell cluster; selecting N disparate groups of channels from the total number of distinct channels, each channel within the N disparate groups of channels being substantially distinct from any other channel within the N disparate groups of channels; respectively assigning the N disparate groups of channels to the N cells of each cell cluster wherein one channel group is assigned to each cell; and segmenting the group of channels assigned to each respective cell into a plurality of channel sub-groups assigned for lending to a predetermined adjacent cell, the number of channel sub-groups respectively corresponding to at least the plurality of adjacent-cells, the channels of each of the channel sub-groups being respectively designated for lending from the respective cell to said predetermined adjacent cell. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
-
-
14. A method of permitting real-time borrowing of channels in a cellular communication system having a plurality of distinct channels, the cellular communication system having a plurality of substantially similar cell clusters, each cell cluster having a plurality of sectorized cells wherein each sectorized cell has a plurality of sector areas, each sectorized cell having a plurality of sectorized base stations capable of sending and receiving transmissions in a corresponding sectorized area of the cell, each sector area having a plurality of adjacent sectorized cells, the method comprising the steps of:
-
determining a total number of distinct channels (CT) available for use by the cellular communication system, the total number of distinct channels being at most equal to the plurality of distinct channels; specifying a cell cluster size (N) for the cellular communication system where N=the number of sectorized cells in a cell cluster; selecting N disparate groups of channels from the total number of distinct channels, each channel within the N disparate groups of channels being substantially distinct from any other channel within the N disparate groups of channels; respectively assigning the N disparate groups of channels to the N sectorized cells of each cell cluster wherein one channel group is assigned to each sectorized cell; respectively dividing the group of channels assigned to each respective sectorized cell into a plurality of sectorized channel groups corresponding to the number of sectorized base stations within each sectorized cell; and segmenting each sectorized channel group into a plurality of sectorized channel sub-groups assigned for lending to a predetermined adjacent cell, the number of sectorized channel sub-groups respectively corresponding to at least the plurality of adjacent sectorized cells, the channels of each of the sectorized channel sub-groups being respectively designated for lending from the respective sector area to said predetermined adjacent sectorized cell. - View Dependent Claims (15)
-
-
16. A cellular communication system permitting real-time borrowing of channels, the cellular communication system comprising:
-
a plurality of channels; and a plurality of cell clusters, each of the plurality of cell clusters having a plurality of cells, each of the plurality of cells having a plurality of adjacent cells and at least one transmitter, the plurality of channels being divided into a first plurality of channel groups corresponding to the plurality of cells utilized for each cell cluster, each channel group of the first plurality of channel groups being respectively assigned to one of the plurality of cells of each cell cluster for lending to a predetermined adjacent cell, each channel group of the first plurality of channel groups being further divided into a plurality of channel sub-groups, the plurality of channel sub-groups being at least equal to the number of adjacent cells, the channels of each of the channel sub-groups respectively being designated for lending to the transmitter of said predetermined adjacent cell. - View Dependent Claims (17, 18, 19)
-
Specification