Nokia Mobile Phones Limited

Oguz Sunay

Ari T Hottinen

Zhi-Chun Honkasalo

Harri Honkasalo

Lin L Ma

Jussi Tapani Kahtava

Marko Teittinen

A wireless telecommunications system that includes at least one base station, at least one mobile station, and a data distribution system in the base station for non-uniformly distributing data amongst a plurality of subchannels that are overlaid upon underlying channels before transmission of the plurality of subchannels to the mobile station. The data distribution system non-uniformly distributes the data in accordance with a total load that is already present in each of the subchannels due to the presence of the underlying channels.

Methods and apparatus for providing non-uniform de-multiplexing in a multi-carrier wide band CDMA system

A method and apparatus is provided for the overlaid operation of two or more wireless communication systems where one of the two systems is a small-scale or indoor system and the other is a large-scale or outdoor system. The indoor system monitors the operation of the outdoor system and detects which part of the available radio resources are temporarily not in use or interference-free in the outdoor system. The indoor system dynamically selects an unused outdoor channel for indoor operation. The indoor radio traffic is divided into TDD time slots with the slots being used for monitoring the existing radio communication on other outdoor channels so that fast changes according to changing traffic and interference conditions are possible. Synchronization, timing and phase control may be added to assist in the maintenance of an error-free communication network.

Method and apparatus for operating an indoor CDMA telecommunications

A method and apparatus for controlling the transmission power of a mobile station during handoff of a call between base stations of a cellular system A desired transmission power of a mobile station on an assigned traffic channel of a target base station is determined, and the transmission power of the mobile station is adjusted over a range of power values to be set to the desired transmission power level. The desired transmission power of the mobile station may be determined based on measurements made on the pilot channel of the target base station at the mobile station. Alternately, base station power classes may be defined for the cellular system so that each base station at which it is desired to receive mobile station transmissions at a signal level within a selected range is assigned to a power class associated with that selected range A mobile station involved in a handoff can determine the power level at which it should begin transmitting on a new traffic channel during handoff by determining the power class of the base station to which the new traffic channel is assigned.

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Irving, TX, United States of America

Oguz Sunay