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Method for estimating uplink control channel quality

A technology for link control channel and quality, applied in the field of telecommunications, which can solve the problems of uncertain TPC command, uncertain path loss, difficulty in estimating quality, etc.

Inactive Publication Date: 2011-11-16
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the interference from other mobile terminals is high, the path loss estimate becomes uncertain, and thus the TPC command can also become uncertain
PUCCH has low SINR when operating with low information bit rate, in this case it is more difficult to estimate the quality

Method used

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  • Method for estimating uplink control channel quality
  • Method for estimating uplink control channel quality
  • Method for estimating uplink control channel quality

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Embodiment Construction

[0021] figure 2 A radio base station 20 (or NodeB, ENodeB, etc.) according to an embodiment of the invention is shown. The radio base station 20 includes an antenna 22 capable of receiving and transmitting signals. Antenna 22 is coupled to transmitter / receiver circuitry 24 (or more generally transceiver circuitry), and this in turn is connected to processing circuitry 26 .

[0022] The radio base station 20 also includes core network interface circuitry 28 for managing one or more interfaces with the core network.

[0023] In operation, the antenna 22 receives signals transmitted by the mobile terminal (or user equipment, etc.), and the processor 26 measures those signals, as will be described in more detail below.

[0024] Those skilled in the art will appreciate that many features have been omitted from the description of the radio base station 20 for the sake of brevity, where they are not necessary to describe embodiments of the invention. Additionally, it will also be...

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PUM

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Abstract

According to embodiment of the present invention, there is provided a radio base station (20) and a corresponding method for estimating the quality of the uplink control channel. The method comprises measuring (32, 42) a quality parameter of the uplink data channel, and using (38, 50) this to estimate the quality of the uplink control channel. In one embodiment, measurements of the uplink control channel are taken and their reliability determined. If the reliability is low (i.e. below a threshold, or below the respective measurements taken on the uplink data channel), then measurements on the data channel are used instead of those made on the control channel to estimate the control channel quality.

Description

technical field [0001] The present invention relates to telecommunications, and more particularly to a method and a radio base station for estimating channel quality in a telecommunications network. Background technique [0002] figure 1 A portion of a telecommunications network 10 is shown. The network 10 comprises radio base stations 12 (also called NodeBs or EnodeBs) - and a core network 14 in communication with the radio base stations 12 . The radio base station 12 also communicates with mobile terminals 16, also called user equipment. Data and control messages are transmitted from the mobile terminal 16 to the radio base station 12 in so-called uplink transmissions. Data and control messages are transmitted from the radio base station 12 to the mobile terminal 16 in so-called downlink transmissions. [0003] Various telecommunications standards exist to define communications within network 10 . An important part of such standards is controlling the transmit power u...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B17/00H04W52/16H04L1/00H04W72/54
CPCH04W52/325H04L1/0036H04L1/20H04L1/0026H04W72/085H04W52/146H04W72/542
Inventor A·西蒙森P·布尔斯特伦H·萨林A·马洛
Owner TELEFON AB LM ERICSSON (PUBL)