KR101461302B1

5G,4G

Title

Channel sounding for improved system performance

Application Number:

KR20130003546

Publication Date:

12-11-2014

Current Assignee:

Family ID:

Application Date:

11-01-2013

Declaring Company:

Publication Country:

US

Priority Date:

11-08-2004

Title

Channel sounding for improved system performance

Application Number:

KR20130003546

Family ID:

Publication Country:

US

Publication Date:

12-11-2014

Application Date:

11-01-2013

Priority Date:

11-08-2004

Current Assignee:

Declaring Company:

Abstract  Abstract

The transmitter generates a low rate signal and transmits it to the target receiver. Upon receipt of the low rate signal, the target receiver generates and transmits a channel sounding response (CSR). CSR is a short burst that carries certain information, with a predefined transmission format. The transmitter then analyzes the CSR, determines an uplink channel response to estimate the downlink channel response, and determines an appropriate transmission parameter setting based on this analysis and the downlink channel response estimate. The adjustment of the transmission parameters may be performed in either a MAC (Medium Access Control) layer or a PHY (physical) layer, or in a combination of two layers. The transmitter adjusts the transmission parameters and modulates the user data on the subcarriers according to the determined transmission parameter setting, and then transmits the user data to the receiver through the desired bandwidth portion. In a preferred embodiment, the transmitter generates a transmit format control (TFC) signal including the determined transmission parameter setting, including subcarrier modulation information, and transmits it to the receiver.

Note:

The information in blue was extracted from the third parties (Standard Setting Organisation, Espacenet)

The information in grey was provided by the patent holder

The information in purple was extracted from the FrandAvenue

Explicitly disclosed patent:openly and comprehensibly describes all details of the invention in the patent document.

Implicitly disclosed patent:does not explicitly state certain aspects of the invention, but still allows for these to be inferred from the information provided.

Basis patent:The core patent in a family, outlining the fundamental invention from which related patents or applications originate.

Family member:related patents or applications that share a common priority or original filing.