Unlock instant, AI-driven research and patent intelligence for your innovation.

Decoding method, receiver, apparatus, OFDM communication system and computer program product

A communication system and receiver technology, applied in multi-frequency code systems, transmission systems, digital transmission systems, etc., can solve problems such as large implemented resources

Active Publication Date: 2014-05-21
NXP USA INC
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the proposed receiver algorithms require a lot of resources to be implemented

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Decoding method, receiver, apparatus, OFDM communication system and computer program product
  • Decoding method, receiver, apparatus, OFDM communication system and computer program product
  • Decoding method, receiver, apparatus, OFDM communication system and computer program product

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0048] The prior art methods and receivers described in the introduction of the present invention may use conventional receiver algorithms in which constellation statistics are calculated according to so-called optimal algorithms.

[0049] According to the optimal algorithm, from all N allocated sc The channel matrix H of subcarrier i i , where i=0,...N sc , noise covariance matrix S and digital signal power matrix C, for each SC-FDMA symbol, calculate the optimal constellation energy K according to the following expression opt and optimal constellation variance U opt :

[0050] K opt = 1 N sc Σ i = 0 N sc - 1 diag ( ( ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a decoding method, a receiver, an apparatus, an OFDM communication system and a computer program product. A method of decoding a received SC-FDMA symbol in a receiver in an OFDM communication system is described. The method comprises calculating an approximate constellation energy K from channel matrices H i for all subcarriers i, a noise covariance matrix S, and a data signal power matrix C associated with the OFDM symbol, an approximate constellation energy K . The approximate constellation energy K is calculated according to: Q i = H i H S - 1 H i ; Q ^ = 1 N sc i = 0 N sc - 1 Q i ; K ^ = diag Q ^ + C - 1 - 1 Q ^ The method further comprises decoding the received symbol using at least the associated approximate constellation energy K . Also, a receiver, an apparatus, an OFDM communication system and a computer program product for such decoding are described.

Description

technical field [0001] The present invention relates to a method of decoding received SC-FDMA symbols in a receiver of an OFDM communication system, a constellation counter, a receiver, a device, an OFDM communication system and a computer program product for such decoding. Background technique [0002] Long Term Evolution (LTE) is the latest step in 3G service for mobile phones. LTE is a 3GPP standard that provides uplink speeds of up to 50 megabits per second (Mbps) and downlink speeds of up to 100 Mbps. The LTE physical layer is an efficient way to transfer both data and control information between an enhanced base station (eNodeB) and a mobile user equipment (UE). LTEPHY ​​uses Orthogonal Frequency Division Multiplexing (OFDM) and Multiple Input Multiple Output (MIMO) data transmission. In particular, the LTE PHY uses two types of OFDM schemes: Orthogonal Frequency Division Multiple Access (OFDMA) on the Downlink (DL) and Single Carrier-Frequency Division Multiple Acce...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H04L27/26
CPCH04L1/206H04L27/26526
Inventor 吉迪恩·库茨阿米特·巴奥塔尔·德克尔
Owner NXP USA INC
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com