Information transmission method and system used for improving uplink capacity

A capacity and data transmission technology, applied in the field of information transmission methods and systems, can solve problems such as inability to cope with millions of connections in mMTC scenarios, low amount of sent data, and no real-time requirements

Active Publication Date: 2018-06-01
CHINA TELECOM CORP LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These methods do not address the characteristics of fixed location, large number of terminals in the mMTC scenario, extremely low amount of data to be sent, and no real-time requirements, and cannot cope with the millions of connections in the mMTC scenario in the future 5G communication system.

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  • Information transmission method and system used for improving uplink capacity
  • Information transmission method and system used for improving uplink capacity
  • Information transmission method and system used for improving uplink capacity

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Embodiment Construction

[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0038] The relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.

[0039] At the same time, it should be understood that, for the convenience of d...

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Abstract

The invention discloses an information transmission method and system used for improving uplink capacity, related to the field of communication. The information transmission method used for improvingthe uplink capacity comprises the following steps: a communication terminal uses a specified spread spectrum sequence to perform spectrum spreading on the uplink data to obtain spread spectrum information, and maps the spread spectrum information to a specified resource block for transmission, wherein all communication terminals located in the same set use the same resource block; and a receiver extracts transmission data from the specified resource block, and performs de-spreading on the transmission data with the corresponding spread spectrum sequence, so as to obtain the uplink data sent bythe communication terminal. The invention aims at the terminal characteristics of the mMTC scene of the 5G communication system, and the pseudo random sequence spread spectrum and the orthogonal frequency division multiplexing are combined, therefore, the existing resources are used more fully, the uplink capacity is greatly improved, and the reliability of uplink concurrent services of the maximum number terminals in the mMTC scene is ensured better.

Description

technical field [0001] The present invention relates to the communication field, in particular to an information transmission method and system for improving uplink capacity. Background technique [0002] The Massive Machine-Type Communication (mMTC) scenario is one of the three important scenarios in the future 5G communication network. The mMTC scenario is mainly for application scenarios such as environmental monitoring, smart agriculture, and forest fire prevention that target sensing and control, and is required to meet the million / square kilometer connection density index. [0003] The main characteristics of terminals in the mMTC scenario include ultra-high density (millions of connections per square kilometer), extremely low number of transmissions (several or a dozen bytes) and fixed, battery-driven (low cost, limited output power), ultra-high Long standby time (at least 10 years), the terminal deployment position is fixed, and the wireless environment where the te...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W4/70H04W24/02H04B1/707
CPCH04B1/707H04W24/02
Inventor 赵勇谢伟良杨峰义毕奇
Owner CHINA TELECOM CORP LTD
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