Operation of a CDMA net

Claim 3

A method as claimed in claim 1 wherein said determining of a quality level comprises retrieving a predetermined quality level associated with said station from a table.

Claim 4

A method as claimed in claim 1 wherein said determining of a quality level comprises receiving an indication of said quality from said station.

Claim 5

A method as claimed in claim 1 wherein said CDMA net is a radio local loop of a telecommunications network.

Claim 8

A method as claimed in claim 5 wherein said determining of a quality level comprises retrieving a predetermined quality level associated with said station from a table.

Claim 9

A method as claimed in claim 4 wherein said determining of a quality level comprises receiving an indication of said quality from said station.

Claim 10

A controller for a code-division multiple access (CDMA) net comprising a receiver that receives a channel request from a station; a set-up circuit that sets up a CDMA channel for said station in response to said request; and a control circuit that controls the power level at which said station transmits into said channel while said channel remains in operation, CHARACTERIZED IN THAT said set up circuit includes circuitry (3,6) that determines a quality level required by said station from a set of quality levels that correspond to types of stations, and that determines power levels for said station and any other stations already having channels in operation to provide the respective required quality levels and said control circuit includes circuitry (1, 3, 4.1, 4.2, 4.n) that initially sets the power level of said station and that adjusts the power levels of said other stations in accordance with said determined power levels.

Claim 11

A controller for a code-division multiple access (CDMA) net comprising a receiver that receives a channel request from a station; a set-up circuit that sets up a CDMA channel for said station in response to said request; and a control circuit that controls the power level at which said station transmits into said channel while said channel remains in operation, CHARACTERIZED IN THAT said set up circuit includes circuitry (3,6) that determines a quality level required by said station from a set of quality levels that correspond to types of stations, and that determines power levels for said station and any other stations already having channels in operation to provide the respective required quality levels and said control circuit includes circuitry (1, 3, 4.1, 4.2, 4.n) that initially sets the power level of said station and that adjusts the power levels of said other stations in accordance with said determined power levels.

Claim 12

A controller as claimed in claim 8 wherein said circuitry that determines a quality level is arranged to retrieve a predetermined quality level associated with said station from a table.

Claim 13

A controller as claimed in claim 6 wherein said circuitry that determines a quality level is arranged to receive an indication of said quality from said station.

Claim 14

A controller for a code-division multiple access (CDMA) net comprising a receiver that receives a channel request from a station; a set up circuit that sets up a CDMA channel for said station in response to said request; and a control circuit that controls the power level at which said station transmits into said channel while said channel remains in operation, CHARACTERIZED IN THAT said set up circuit includes circuitry (.3,6) that determines a quality level required by said station, and that determines power levels for said station and any other stations already having channels in operation to provide the respective required quality levels and said control circuit includes circuitry (1, 3, 4.1, 4.2, 4.n) that initially sets the power level of said station and that adjusts the power levels of said other stations in accordance with said determined power levels, wherein said control circuit is arranged to set and adjust said power levels in accordance with the relation: ##EQU12## where: S x is the received power level of station x, α i is the activity factor of station i, η is the background noise level, W/R x is the spreading gain for station x and Q x is a measure of the quality level required by station x, being the ratio of E b /N O where E b is the received energy per bit and N O is the received noise spectral density.

Claim 15

A controller for a code-division multiple access (CDMA) net comprising a receiver that receives a channel request from a station; a set up circuit that sets up a CDMA channel for said station in response to said request; and a control circuit that controls the power level at which said station transmits into said channel while said channel remains in operation, CHARACTERIZED IN THAT said set up circuit includes circuitry (.3,6) that determines a quality level required by said station, and that determines power levels for said station and any other stations already having channels in operation to provide the respective required quality levels and said control circuit includes circuitry (1, 3, 4.1, 4.2, 4.n) that initially sets the power level of said station and that adjusts the power levels of said other stations in accordance with said determined power levels, wherein said control circuit is arranged to set and adjust said power levels in accordance with the relation: ##EQU12## where: S x is the received power level of station x, α i is the activity factor of station i, η is the background noise level, W/R x is the spreading gain for station x and Q x is a measure of the quality level required by station x, being the ratio of E b /N O where E b is the received energy per bit and N O is the received noise spectral density.

Claim 16

A controller as claimed in claim 11wherein said circuitry that determines a quality level is arranged to retrieve a predetermined quality level associated with said station from a table.

Claim 17

A controller as claimed in claim 11 wherein said circuitry that determines a quality level is arranged to receive an indication of said quality from said station.

Claim 18

A telecommunications network having one or more radio local loops each comprising a controller for a code-division multiple access (CDMA) net said controller comprising a receiver that receives a channel request from a station; a set up circuit that sets up a CDMA channel for said station in response to said request; and a control circuit that controls the power level at which said station transmits into said channel while said channel remains in operation, CHARACTERIZED IN THAT said set up circuit includes circuitry (3,6) that determines a quality level required by said station from a set of quality levels that correspond to types of stations, and that determines power levels for said station and any other stations already having channels in operation to provide the respective required quality levels and said control circuit includes circuitry (1, 3, 4.1, 4.2, 4.n) that initially sets the power level of said station and that adjusts the power levels of said other stations in accordance with said determined power levels.

Claim 19

A telecommunications network having one or more radio local loops each comprising a controller for a code-division multiple access (CDMA) net said controller comprising a receiver that receives a channel request from a station; a set up circuit that sets up a CDMA channel for said station in response to said request; and a control circuit that controls the power level at which said station transmits into said channel while said channel remains in operation, CHARACTERIZED IN THAT said set up circuit includes circuitry (3,6) that determines a quality level required by said station from a set of quality levels that correspond to types of stations, and that determines power levels for said station and any other stations already having channels in operation to provide the respective required quality levels and said control circuit includes circuitry (1, 3, 4.1, 4.2, 4.n) that initially sets the power level of said station and that adjusts the power levels of said other stations in accordance with said determined power levels.

Claim 20

A network as claimed in claim 14 wherein said circuitry that determines a quality level is arranged to retrieve a predetermined quality level associated with said station from a table.

Claim 21

A network as claimed in claim 14 wherein said circuitry that determines a quality level is arranged to receive an indication of said quality from said station.

Claim 22

A telecommunications network having one or more radio local loops each comprising a controller for a code-division multiple access (CDMA) net said controller comprising a receiver that receives a channel request from a station; (a) a set up circuit that sets up a CDMA channel for said station in response to said request; and (b) a control circuit that controls the power level at which said station transmits into said channel while said channel remains in operation. CHARACTERIZED IN THAT said set up circuit includes circuitry (3,6) that determines a quality level required by said station, and that determines power levels for said station and any other stations already having channels in operation to provide the respective required quality levels and said control circuit includes circuitry (1, 3, 4.1, 4.2, 4.n) that initially sets the power level of said station and that adjusts the power levels of said other stations in accordance with said determined power levels, wherein said control circuit is arranged to set and adjust said power levels in accordance with the relation: ##EQU13## where: S x is the received power level of station x, α is the activity factor of station i, η is the background noise level, W/R x is the spreading gain for station x and Q x is a measure of the quality level required by station x, being the ratio of E b /N O where E b is the received energy per bit and N O is the received noise spectral density.

Claim 23

A telecommunications network having one or more radio local loops each comprising a controller for a code-division multiple access (CDMA) net said controller comprising a receiver that receives a channel request from a station; (a) a set up circuit that sets up a CDMA channel for said station in response to said request; and (b) a control circuit that controls the power level at which said station transmits into said channel while said channel remains in operation. CHARACTERIZED IN THAT said set up circuit includes circuitry (3,6) that determines a quality level required by said station, and that determines power levels for said station and any other stations already having channels in operation to provide the respective required quality levels and said control circuit includes circuitry (1, 3, 4.1, 4.2, 4.n) that initially sets the power level of said station and that adjusts the power levels of said other stations in accordance with said determined power levels, wherein said control circuit is arranged to set and adjust said power levels in accordance with the relation: ##EQU13## where: S x is the received power level of station x, α is the activity factor of station i, η is the background noise level, W/R x is the spreading gain for station x and Q x is a measure of the quality level required by station x, being the ratio of E b /N O where E b is the received energy per bit and N O is the received noise spectral density.

Claim 24

A network as claimed in claim 17 wherein said circuitry that determines a quality level is arranged to retrieve a predetermined quality level associated with said station from a table.

Claim 25

A network as claimed in claim 17 wherein said circuitry that determines a quality level is arranged to receive an indication of said quality from said station.