US 6,748,221 B1 · Method and system for channel allocation in dual band network

Abstract

The invention relates to a method for a channel allocation in a dual band network which dual band network comprises at least one base station of a serving cell, at least one base station of a neighbour cell and at least one subscriber terminal in radio connection with the base station of the serving cell, which subscriber terminal can be in connection with the base station of the serving cell either on the first or on the second radio band, which radio connection comprises at least one broadcast control channel, which broadcast control channel is only transmitted on the first band, which subscriber terminal carries out measurements of the serving cell and neighbour cells on the first ban, and the measurement result of the subscriber terminal on the second band is estimated on the basis of the measurements on the first band, and in which the connection between the subscriber terminal and the base station is established on the second band if the measurement result on the first band is bigger than a predetermined threshold value. The invention is characterized by dynamically adjusting the predetermined threshold value by observing the measurement results before and after establishing the connection to the other band. Thus, the performance of the base station system can be efficiently improved.

Claims20

Dependent claims

A method for a channel allocation in a dual band network, wherein the dual band network comprises at least one base station of a serving cell, at least one base station of a neighbor cell and at least one subscriber terminal in radio connection with the at least one base station of the serving cell, comprising:

connecting at least one subscriber terminal with at least one base station of a serving cell either on a first radio band or on a second radio band;
providing a radio connection comprising at least one broadcast control channel;
transmitting the at least one broadcast control channel only on the first radio band;
using the at least one subscriber terminal to carry out measurements of the at least one base station of the serving cell and neighbor cells on the first radio band and to estimate measurement results of the at least one subscriber terminal on the second radio band based on the measurements of the first radio band;
establishing the radio connection between the at least one subscriber terminal and the base station on the second radio band if the measurement result on the first radio band exceeds a predetermined threshold value;
and
dynamically adjusting the predetermined threshold value by observing the measurement results before and after establishing the radio connection to the second radio band.

4 more elements

A system for a channel allocation in a dual band network, wherein the dual band network comprises at least one base station of a serving cell, at least one base station of a neighbor cell and at least one subscriber terminal in radio connection with the base station of the serving cell, the system comprising:

at least one subscriber terminal being in connection with at least one base station of a serving cell either on a first radio band or on a second radio band;
a radio connection comprising at least one broadcast control channel;
wherein the system is configured to transmit a broadcast control channel only on the first radio band;
wherein the at least one subscriber terminal is configured to report on measurements of the serving cell and neighbor cells on the first radio band and wherein the system is configured to estimate a measurement result on the second radio band based on the measurements of the first radio band;
and
wherein the system is configured to use a predetermined threshold value for a desired feature in selecting a band of a traffic channel used for a base station call in a dual band network and the system is configured to set the predetermined threshold value automatically for an optimal performance.

3 more elements

Dependencies are inferred from the claim text.

Method and system for channel allocation in dual band network

Life of this patent

Method and system for channel allocation in dual band network

Life of this patent

Abstract

Claims20