Channel allocation in a mobile communications system
First Claim
1. A method of channel allocation in a mobile communications system, in the frequency planning of which at least one frequency is set at a reuse distance which is shorter than the reuse distance of a continuous transmission frequency, in which method continuous transmission calls are identified, the method comprising allocating a traffic channel for a continuous transmission call at a fixed frequency defined as a continuous transmission frequency, when the traffic channel is free.
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Abstract
The use of frequencies can be made more efficient in a mobile communications system with frequency hopping and a method of discontinuous transmission. However, continuous transmission calls unsuitable for discontinuous transmission will hereby cause excessive interference in the network. This invention concerns a channel allocation method in a mobile communications system where some radio connections are implemented with a discontinuous transmission function. The method identifies continuous transmission calls for which according to the invention a fixed-frequency traffic channel defined as a continuous transmission traffic channel is allocated. In addition, the invention concerns an arrangement for allocation of a traffic channel in a mobile communications system where some radio connections are implemented with a discontinuous transmission function. The arrangement is adapted to identify continuous transmission calls. According to the invention, the arrangement is characterized in that it is adapted for allocation of a fixed-frequency traffic channel defined as a continuous transmission traffic channel for a continuous transmission call.
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Citations
8 Claims
- 1. A method of channel allocation in a mobile communications system, in the frequency planning of which at least one frequency is set at a reuse distance which is shorter than the reuse distance of a continuous transmission frequency, in which method continuous transmission calls are identified, the method comprising allocating a traffic channel for a continuous transmission call at a fixed frequency defined as a continuous transmission frequency, when the traffic channel is free.
- 5. An arrangement for allocation of a traffic channel in a mobile communications system, in the frequency planning of which at least one frequency is set at a reuse distance shorter than the reuse distance of a continuous transmission frequency, which arrangement is adapted to identify continuous transmission calls, the arrangement comprising adapting the arrangement to allocate a traffic channel for a continuous transmission call at a fixed frequency defined as a continuous transmission frequency, when the traffic channel is free.
Specification