Scheduling apparatus and method for determining a desired noise rise over thermal noise in a CDMA mobile communication system
AssigneeSamsung Electronics Co., Ltd.
InventorsYong-Jun Kwak, Sung-Ho Choi, Ju-Ho Lee
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Abstract
There are disclosed an apparatus and method for determining or changing a target ROT for a target cell according to measurement ROTs from its neighbor cells in Node B controlled scheduling for improving enhanced uplink dedicated channels in an asynchronous CDMA communication system. The present invention proposes novel signaling procedures for the purpose of determining or changing the target ROT for the target cell.
Claims12
A method of determining a target noise rise over thermal noise (ROT) for a target cell in a radio network controller (RNC) in a CDMA (Code Division Multiple Access) mobile communication system where ROTs in cells measured by each of a plurality of Node Bs within a coverage area of the RNC are maintained equal to or less than target ROTs for the cells, the method comprising the steps of:
- receiving a measurement ROT for the target cell from a Node B that controls the target cell;
- adjusting a target ROT for the target cell according to a relation between the measurement ROT and the target ROT for the target cell;
- and
- transmitting the adjusted target ROT to the Node B.
An apparatus for determining a target noise rise over thermal noise (ROT) for a target cell in a CDMA (Code Division Multiple Access) mobile communication system where ROTs in cells measured by each of a plurality of Node Bs are maintained equal to or less than target ROTs for the cells, the apparatus comprising:
- a Node B for measuring ROTs in the target cell and cells neighboring the target cell within a coverage area of the Node B, transmitting the ROTs, and updating the target ROT for the target cell to an adjusted target ROT;
- and
- a radio network controller (RNC) for receiving the ROTs, adjusting the target ROT for the target cell according to a relation between the ROTs and preset target ROT for the target cell, and transmitting the adjusted target ROT to the Node B.
The apparatus of 7, wherein the Node B transmits the ROTs to the RNC and the RNC transmits the adjusted target ROT to the Node B using Node B application part signaling messages.
Dependencies are inferred from the claim text.