CHANNEL SOUNDING FOR IMPROVING SYSTEM PERFORMANCE

Abstract

PROBLEM TO BE SOLVED: To improve system performance in an OFDM (Orthogonal Frequency Division Multiplexing)-MIMO (Multiple-Input Multiple-Output) system.

SOLUTION: A transmitter generates and transmits a low rate signal to its intended receiver. The receiver generates and transmits a CSR (channel sounding response). The CSR is a short burst having a predefined transmit format and carrying predetermined information. The transmitter then analyzes the CSR and determines uplink channel response estimates downlink channel response and determines appropriate transmit parameter settings based on the analysis and downlink response estimate. Adjustment of the transmit parameters is made in either an MAC (medium access control) or PHY (physical) layer. After adjusting the transmit parameters and modulating sub-carriers with user-data according to the determined transmit settings the transmitter transmits the user-data to the receiver on a preferred portion of bandwidth. The transmitter may also generates a transmission format TFC signal including the determined transmit parameter settings including sub-carrier modulation information.

COPYRIGHT: (C)2011JPO&INPIT

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4G	19/09/2008	ISLD-200901-001	INTERDIGITAL INC	S1 TS Number: TS 136 211 Version No: ---- Illustrative part: ---- Release: ---- S2 TS Number: TS 136 213 Version No: ---- Illustrative part: ---- Release: ---- +1 -1	No	Family Member
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5G	21/06/2019	ISLD-201906-026	INTERDIGITAL INC	S1 TS Number: TS 138 212 Version No: ---- Illustrative part: ---- Release: ---- S2 TS Number: TS 138 213 Version No: ---- Illustrative part: ---- Release: ---- +1 -1	No	Family Member

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Publication No	Technology	Declaration Information			Specification Information				Explicitly Disclosed	Patent Type	Status	National Phase Entries
Publication No	Technology	Declaration Date	Declaration Reference	Declaring Company	Specification Information				Explicitly Disclosed	Patent Type	Status	National Phase Entries
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Technologies

Resource configuration

Multiple-Input Multiple-Output(MIMO)/Massive MIMO

Product

Base Station (eNB/gNB)

User Equipment (UE/Terminal)

Use Cases

Wireless communication

Services

Channel Quality Measurement/Estimation

Claim

Associated Portfolios

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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.

JP5254282B2

5G,4G

Title

CHANNEL SOUNDING FOR IMPROVING SYSTEM PERFORMANCE

Application Number:

Publication Date:

Current Assignee:

Family ID:

Application Date:

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View on Espacenet

Title

CHANNEL SOUNDING FOR IMPROVING SYSTEM PERFORMANCE

Application Number:

Family ID:

Publication Country:

Publication Date:

Application Date:

Priority Date:

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View on Espacenet

Abstract

Specification Information

Specification Information

Technologies

Family Information

Technologies

Product

Use Cases

Services

Claim

Associated Portfolios

Note: