Information transmission method and system for improving uplink capacity

A capacity and communication terminal technology, applied in the field of information transmission methods and systems, can solve problems such as no real-time requirements, low data volume to be sent, and inability to cope with millions of connections in mMTC scenarios
CN108111990BActive Publication Date: 2020-12-25CHINA TELECOM CORP LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA TELECOM CORP LTD
Publication Date
2020-12-25

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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.
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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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