Supercharge Your Innovation With Domain-Expert AI Agents!

Methods and apparatus for implementing and using an in-band rate indicator

An indicator, rate technology, applied in the field of indicating data rate option information

Inactive Publication Date: 2008-12-17
QUALCOMM INC
View PDF0 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, as the number of data rate options supported increases, the number of bits required in the assignment signal dedicated to uniquely indicating the assigned rate option increases, representing an unnecessary increase in overhead

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
  • Methods and apparatus for implementing and using an in-band rate indicator
  • Methods and apparatus for implementing and using an in-band rate indicator
  • Methods and apparatus for implementing and using an in-band rate indicator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0033] FIG. 1 is a diagram of an example communication system 100 implemented in accordance with the present invention and using methods of the present invention. System 100 includes apparatus and methods aimed at improving downlink communications by: supporting multiple options for different downlink data rate options, and transmitting a given downlink traffic channel segment in an efficient manner according to the invention Selected downlink data rate. Exemplary system 100 may be, for example, an Orthogonal Frequency Division Multiplexing (OFDM) multiple access wireless communication system. System 100 includes multiple cells (cell 1102, cell M 104). Each cell (Cell 1102, Cell M 104) represents the wireless coverage area of ​​a corresponding base station (BS 1106, BS M 108), respectively. Included in system 100 are multiple wireless terminal sets (WTs) (WT 1110, WT N 112, WT 1'114, WT N'116). At least some of the WTs are mobile nodes (MNs); a MN can move throughout system...

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

Downlink traffic channel data rate options and methods of indicating to a wireless terminal a utilized downlink data rate option are described. The downlink traffic channel rate option for a segment is conveyed using an assignment signal and / or a block in the downlink traffic channel segment which is not used for user data. Downlink segment assignment signals in some implementations allocate fewer bits for rate option indication than are required to uniquely identify each option. In some implementations low rate options, e.g., using QPSK, are uniquely identified via assignment signals. Higherrate options, e.g., using QAM16 modulation, are conveyed via the distinct information block in the downlink traffic segment using a first coding / modulation method. Still higher rate options, e.g., using QAM16, QAM64, or QAM256, are conveyed via the information block in the segment using a second coding / modulation method which is applied to the rate option information.

Description

technical field [0001] The present invention relates to methods and apparatus for indicating data rate option information, while various example embodiments are more particularly directed to indicating and using downlink data rate option information in a wireless communication system. Background technique [0002] To efficiently perform downlink traffic channel signaling in a wireless communication system in which a base station communicates with multiple wireless terminal sets located at different locations with different channel conditions and different levels of interference at any given time, supporting downlink traffic A large number of data rate options for channel segments is beneficial. Typically, in a wireless communication system that supports multiple downlink traffic channel data rate options that may vary from sector to sector, the data rate option for a given sector is specified in the assigned signal field corresponding to the downlink traffic channel sector ...

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): H04B7/26
Inventor 拉吉夫·拉罗亚金辉厉隽怿弗兰克·A·莱恩汤姆·理查森
Owner QUALCOMM 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