アップリンクとダウンリンクの経路損失の差分を決定する方法およびシステム - Telefon Akti Bora Get Elm Ericson (Pubble)

Title:

アップリンクとダウンリンクの経路損失の差分を決定する方法およびシステム

Document Type and Number:

Japanese Patent JP4809237

Kind Code:

B2

Abstract:

Methods and apparatus are described for estimating a path-loss difference between uplink and downlink communications at a first node communicating with a second node in a communication system. A quantity of access request preambles transmitted by the first node to the second node before an acknowledgement from the second node of successful receipt of a preamble is received at the first node is determined. A difference between an uplink path-loss attributed to communications from the first node to the second node and a downlink path-loss attributed to communications to the first node from the second node is estimated based on the transmitted preamble quantity determination. Once the path-loss difference is estimated, the estimate can be used for many purposes, such as to determine a transmission power of the first node.

Inventors:

Bernard Dosson, Bow
Olson, Jonas
Zylen, Michael

Application Number:

JP2006540342A

Publication Date:

November 09, 2011

Filing Date:

November 19, 2004

Export Citation:

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