Transmission method of orthogonal extension block, receiving method thereof and system thereof

A transmission method and a technique for expanding blocks, which are applied in the fields of receiving methods and systems, and orthogonal expanding block transmission methods to achieve the effect of optimal utilization

Active Publication Date: 2009-11-18
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The core issue is: how to deal with the challenges of harsh transmission environments, that is, how to provide high spectral efficiency, high system capacity, high transmission reliability and multiple Quality of Service (QoS) in complex broadband wireless mobile and terrestrial broadcast transmission environments. , QOS) and many other guarantees; and the challenge of how to support multi-service transmission, that is, how to schedule the available resources of the system to meet the different needs of multiple services according to actual channel conditions, including different transmission rates, different coverage a

Method used

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  • Transmission method of orthogonal extension block, receiving method thereof and system thereof
  • Transmission method of orthogonal extension block, receiving method thereof and system thereof
  • Transmission method of orthogonal extension block, receiving method thereof and system thereof

Examples

Experimental program
Comparison scheme
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Example Embodiment

[0081] Example 1

[0082] The orthogonal extended block transmission method and system of this embodiment can flexibly control the length of the data block and allocate it to each channel according to the available transmission resources of the system (for example, physical layer sub-channel bandwidth, channel quality, channel capacity, etc.) and service requirements. Service spreading code. The spreading code of each service is configured according to the changes in transmission channel characteristics and service requirements, achieving the best compromise in meeting service requirements and improving spectrum efficiency.

[0083] Such as image 3 As shown, the steps of the system and implementation method of this embodiment are as follows:

[0084] A1. The resource scheduling and control module determines the transmission parameters according to the service requirements and the available transmission resources of the system (such as channel bandwidth, channel quality and channe...

Example Embodiment

[0114] Example 2

[0115] The method and system of this embodiment flexibly control the length of the data block, the number of expansion stages and multi-stage spreading codes of each service according to the available transmission resources of the system (such as physical layer sub-channel bandwidth, channel quality and channel capacity) and service requirements. And the number of extension levels and extension codes can be changed according to the characteristics of the transmission channel and changes in the traffic volume, achieving the best compromise in meeting service requirements and improving spectrum efficiency. One or more physical layer sub-channels can be used to complete one service. Transmission, important services can be transmitted through the physical layer sub-channels with high priority.

[0116] Such as Figure 5 As shown, the implementation steps of the transmission method and transmission system are as follows:

[0117] C1. The resource scheduling and contr...

Example Embodiment

[0166] Example 3

[0167] The method and system of this embodiment and the second embodiment are basically the same, and the emphasis is on the implementation of diversity effect through spreading code hopping. According to service requirements, the resource scheduling and control module assigns a hopping pattern to each physical layer sub-channel, and the physical layer sub-channel selects a spreading code for each time slice according to the hopping pattern for data block expansion. Because of the data on different time slices Blocks use different spreading codes to achieve spreading code hopping diversity gain.

[0168] Such as Picture 10 As shown, the implementation steps of the method and transmission system are as follows:

[0169] E1. The resource scheduling and control module determines the block transmission parameters and extended parameters according to the service requirements and the available transmission resources of the system (such as the physical layer sub-chann...

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Abstract

The invention relates to a transmission method of an orthogonal extension block, a receiving method thereof and a system thereof. The transmission method comprises the following steps of: confirming a transmission parameter according to a service demand and an usable transmission resource; building the subsidiary channels of physical layers according to the transmission parameter; setting the priority levels of the subsidiary channels of the each physical layer; distributing the jump patterns of extended codes to the subsidiary channels of the each physical layer; modulating the each route of business by means of the data blocks according to the transmission parameter to obtain modulation data blocks; distributing the subsidiary channels of the each physical layer to the each route of the business; extending the modulation data blocks by means of the blocks according to the transmission parameter and the jump patterns to obtain extension data blocks; post processing the extension data blocks by means of base bands; and transmitting the processed extension data blocks. The method and the system can support the building and the flexible configuration of the subsidiary channels of the each physical layer, the multi-priority transmission of multi service, the flexible distribution and dispatching of the resources and multi-cell network deployment, and also can realize an intersymbol diversity effect.

Description

technical field [0001] The invention relates to the technical field of digital information transmission, in particular to an orthogonal extension block transmission method, a receiving method and a system thereof. Background technique [0002] In digital communication systems, the common goal of broadband wireless mobile transmission and broadband terrestrial broadcast transmission is to make full use of available system resources (including bandwidth, power and complexity, etc.) in complex broadband wireless mobile and terrestrial broadcast transmission environments, according to Actual channel conditions to meet the growing multi-service requirements. [0003] The core issue is: how to deal with the challenges of harsh transmission environments, that is, how to provide high spectral efficiency, high system capacity, high transmission reliability and multiple Quality of Service (QoS) in complex broadband wireless mobile and terrestrial broadcast transmission environments. ...

Claims

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Application Information

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IPC IPC(8): H04L1/06H04L1/00H04L27/26H04W72/12
Inventor 彭克武杜邓宝谢求亮杨知行宋健
Owner TSINGHUA UNIV
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