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

Acquisition in frequency division multiple access systems

A part, code sequence technology, applied in the field of cell acquisition, which can solve the problem of fast and reliable cell acquisition protocol that has not yet reached a consensus

Active Publication Date: 2009-08-12
QUALCOMM INC
View PDF0 Cites 17 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although much work has been done to address each of these issues, there is no industry consensus on a cell acquisition protocol that is fast, reliable, and consumes few resources

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
  • Acquisition in frequency division multiple access systems
  • Acquisition in frequency division multiple access systems
  • Acquisition in frequency division multiple access systems

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0030] Various embodiments are described below with reference to the figures, wherein like reference numerals represent like elements herein. In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of one or more embodiments. It may be evident, however, that the described embodiments may be practiced without these specific details. In other instances, well-known structures and devices are shown in block diagram form in order to facilitate describing one or more embodiments.

[0031] As used in this application, the word "exemplary" means "serving as an example, illustration, or illustration." Any aspect or design described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other aspects or designs. In contrast, "exemplary" is used once to refer to concepts in specific contexts.

[0032]In addition, the word "or" is intended to mean an inclusive "or...

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

Systems and methods allow cell acquisition in a wireless communication system in frequency division multiple access mode of operation. Code sequences transmitted over primary synchronization channel (P-SCH) enable detection of symbol boundary, cyclic prefix duration, and indication of broadcast channel bandwidth. Sequences transmitted over secondary synchronization channel (S-SCH) afford radio frame boundary detection, cell identification, and broadcast channel bandwidth indication. Cell identification can be conveyed jointly between P-SCH and S-SCH codes. Broadcast channel sequences convey cyclic prefix timing, system bandwidth, and other system information. Relay of cell acquisition information, as well as multiple-cell acquisition when wireless system operates with frequency reuse are described.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to Provisional Application Serial No. 60 / 839,954, filed August 23, 2006, entitled "A METHOD AND APPARATUS FOR ACQUISITION INFDMA SYSTEMS" (A METHOD AND APPARATUS FOR ACQUISITION INFDMA SYSTEMS). The entire content of this provisional application is incorporated herein by reference. technical field [0003] In general, the following description relates to wireless communication and, in particular, to cell acquisition and sequences for acquiring cell information using synchronization and broadcast channels. Background technique [0004] Wireless communication systems are widely deployed to provide various types of communication content such as voice, video, data, etc. These systems may be multiple-access systems capable of supporting communication for multiple users by sharing available system resources (eg, bandwidth and transmit power). This association of multiple-access systems incl...

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
CPCH04J11/0069H04L5/0007H04L5/0064H04L5/0091H04L27/2655H04L27/2675H04J11/0073H04J11/0076H04J13/0029H04J13/0048H04J13/0062H04J13/0066
Inventor B-H·金D·P·马拉蒂J·蒙托霍
Owner QUALCOMM INC