Telefonaktiebolaget Lm Ericsson (publ)

Seong-Jun Oh

Anthony C K Soong

Young Cheul Yoon

Shiau-He Tsai

Srinivasan Balasubramanian

Rath Vannithamby

Tao Wu

Ralph Akram Gholmieh

Thawatt Gopal

David Comstock

Patrick Hosein

Long Duan

Jonas Lennart Wiorek

Hsein Woo

A method of reverse link power control for a reverse packet data channel in a wireless communication system allows a mobile station to autonomously change its data transmission rate. The mobile station transmits packet data over a reverse packet data channel having a data rate variant transmit power level that varies based on a transmit data rate on the packet data channel. The mobile station further transmits control signals over a reverse control channel associated with the reverse packet data channel. The transmit power level of the reverse control channel is such that the transmit power level does not vary with the transmit data rate on the packet data channel. The radio base station measures the strength of the received signals on the reverse control channel, compares the measured strength to a power control set point, and generates a power control signal responsive to the comparison of the control signal to the power control set point.

Power control for reverse packet data channel in CDMA systems

An apparatus and method provide MAC logic enabling the use of two or more reverse link rate controls at the same time in one or more sectors of a radio base station. That enables the base station to control reverse link loading via reverse link rate control, while assigning mobile stations to the type of reverse link rate control best suited to their needs. For example, the base station MAC logic may implement both a common rate controller that generates per-sector rate control commands, and a dedicated rate controller that generates per-user rate control commands and assign mobile stations having relatively lax reverse link service needs to the common rate controller, while assigning mobile stations having more demanding reverse link service requirements to the dedicated rate control. More than two rate controls can be implemented, and exemplary choices include per-user, per-sector, per-group, and scheduled rate control in any combination.

Generalized rate control for a wireless communications network

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San Diego, CA, United States of America

Seong-Jun Oh