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Device-to-device broadcast information transmitting and receiving method and device, and transmission system

A technology of broadcasting information and transmitting device, applied in the field of communication, can solve problems such as no effective solution, and achieve the effect of improving reliability and improving system throughput.

Active Publication Date: 2015-07-29
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] For the above-mentioned problems existing in related technologies, there is still no effective solution

Method used

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  • Device-to-device broadcast information transmitting and receiving method and device, and transmission system
  • Device-to-device broadcast information transmitting and receiving method and device, and transmission system
  • Device-to-device broadcast information transmitting and receiving method and device, and transmission system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0083] 1) Classification of sending information:

[0084] The broadcast information contains a large amount of information with different contents. According to the different information, the information to be sent is divided into important and urgent information, important but not urgent information, urgent and unimportant information, neither urgent nor important and other categories according to the information content.

[0085] Important and urgent information generally emergency evacuation, serious information alarm, such as landslide warning, new disaster warning, sudden fire in the commercial area, emergency rescue, etc.;

[0086] Important non-emergency information generally includes green channel opening, disaster relief progress, etc.;

[0087] Urgent and unimportant information refers to emergency message notifications, etc.;

[0088] The non-urgent and non-important information is a commercial broadcast advertisement within the coverage, and the content is relativel...

Embodiment 2

[0168] In an Orthogonal Frequency Division Multiple Access (OFDMA for short) / Single-Carrier Frequency Division Multiple Access (SC-FDMA for short) system, wireless resources used for communication ( Radio Resource) is a time-frequency two-dimensional form. For example, for the LTE / LTE-A system, the uplink and downlink communication resources are divided in units of radio frames (radio frame) in the time direction, and the length of each radio frame (radio frame) is 10ms, including 10 sub-frames with a length of 1ms, each subframe includes two slots with a length of 0.5ms, such as Figure 5 shown. According to different configurations of a cyclic prefix (Cyclic Prefix, CP), each time slot may include 6 or 7 OFDM or SC-FDM symbols.

[0169] In the frequency direction, resources are divided in units of subcarriers. Specifically, in communication, the smallest unit of resource allocation in the frequency domain is RB (Resource Block, resource block), which corresponds to a PRB (...

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PUM

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Abstract

Provided are a sending / receiving method and device for D2D broadcast information, and a transmission system. The sending method comprises: acquiring category information about service information to be sent; acquiring control information corresponding to the category information, wherein the control information is used for indicating resource scheduling information when the service information is sent and / or retransmitted; and according to a predetermined rule, sending the service information and the control information by broadcast.

Description

technical field [0001] The present invention relates to the communication field, in particular to a device-to-device (Device-to-Device, D2D for short) broadcast information sending method, receiving method and device, and a transmission system. Background technique [0002] With the development of mobile communication services and technologies, today's wireless network business models are becoming more and more abundant, in which short-distance data sharing between users, small-scale social and commercial activities, and specific services for specific local users are all in Gradually become a growth point that cannot be ignored in the wireless platform in the next stage. [0003] The scenarios and requirements of public safety (public safety) in D2D communication based on Long-Term Evolution (LTE for short) are also proposed in the 3rd Generation Partnership Project (3GPP for short), and It has received widespread attention from members of standards organizations. It is fo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W4/06H04W72/12
CPCH04W8/005H04W76/40H04W76/14H04W72/569H04W72/23H04W72/30
Inventor 王文焕杨瑾吴栓栓袁明黄双红
Owner ZTE CORP