Channel allocation in a telecommunications system with asymmetric uplink and downlink traffic

• Main Authors: MALMGREN, GOERAN, KRONESTEDT, FREDRIK
• Format: Patent
• Language: English; French; German
• Published: 19.04.2006
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; WIRELESS COMMUNICATIONS NETWORKS

In a synchronous cellular radio telecommunications network that employs a time division multiple access (TDMA) channel allocation scheme, an effective approach to allocating channels or time slots in a TDMA time frame containing asymmetric downlink and uplink traffic channel fields can be achieved by dividing the downlink and uplink traffic channel fields into a number of regions, based on an expected level of intercell interference associated with each region. In addition, the level of susceptibility to intercell interference for each mobile unit operating in a given cell is continuously established. The allocation of channels or time slots is then carried out for each of the mobile units based on, among other things, the level of susceptibility associated with each of the mobile units, the level of expected intercell interference associated with each of the regions, and whether the channel or time slot is being allocated for the purpose of conveying information in the uplink or downlink traffic channel field.