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Downlink information sending method, downlink information receiving method, downlink information sending device and downlink information receiving device

A technology for information transmission and control information, applied in the field of communication, can solve problems such as inability to receive downlink information

Active Publication Date: 2016-05-25
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] The present invention provides methods and devices for sending downlink information and receiving downlink information, so as to solve at least the problem that downlink information cannot be received in the scenario of limited bandwidth in the technology

Method used

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  • Downlink information sending method, downlink information receiving method, downlink information sending device and downlink information receiving device
  • Downlink information sending method, downlink information receiving method, downlink information sending device and downlink information receiving device

Examples

Experimental program
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Effect test

Embodiment 1

[0169] When the base station sends downlink information, it sends synchronization information and broadcast information at the central narrowband position of the wireless frame N subframe 0 system bandwidth, where the central narrowband is 6PRB, and the broadcast information includes system frame number information and narrowband allocation information. 5 The central narrowband position of the system bandwidth sends synchronization information. The narrowband allocation information indicates that there are 7 narrowbands available in the system bandwidth, which are respectively located in the central narrowband with positive offset 1-3 narrowbands and negative offset 1-3 narrowbands, and are numbered narrowbands 1-7 from low frequency to high frequency.

[0170] The base station transmits control information and cell public information for scheduling cell public information and cell public information in each available narrowband in radio frame N subframe 1, where the cell publi...

Embodiment 2

[0174] When the base station sends downlink information, it sends synchronization information and broadcast information at the central narrowband position of the system bandwidth of subframe N of radio frame 0, wherein the central narrowband is 72 subcarriers, and the synchronization information is sent at the narrowband position of the central narrowband of system bandwidth of subframe N of radio frame N. There are 5 narrowbands available in the predefined system bandwidth, which are respectively located in the central narrowband with positive offset 1-2 narrowbands and negative offset 1-2 narrowbands, and are numbered narrowbands 1-5 from low frequency to high frequency.

[0175] The base station transmits control information and cell public information for scheduling cell public information in narrowband 3 and narrowband 2 in the center of radio frame N subframe 1, where the cell public search space where the control channel carrying the cell public information is located is ...

Embodiment 3

[0179] When the base station sends downlink information, it sends synchronization information and broadcast information at the center narrowband position of the system bandwidth of radio frame N subframe 0, where the center narrowband is 72 subcarriers, and the broadcast information includes system frame number information and narrowband allocation information. In radio frame N Synchronization information is sent at the center narrowband position of the system bandwidth in subframe 5. The narrowband allocation information indicates that there are 5 narrowbands available in the system bandwidth, which are respectively located in the central narrowband with a positive offset of 1-2 narrowbands and a negative offset of 1-2 narrowbands. The narrowbands are numbered from low frequency to high frequency as narrowbands 1-5.

[0180] The base station transmits control information and cell public information for scheduling cell public information and cell public information in a narrowb...

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Abstract

The invention discloses a downlink information sending method, a downlink information receiving method, a downlink information sending device and a downlink information receiving device. The downlink information sending method comprises the steps of grouping channels carrying different downlink information and allocating the grouped channels to narrow-band resources to send the channels. The problem that downlink information cannot be received in limited-bandwidth scenarios in the related technologies is solved, and correct reception of downlink information is ensured.

Description

technical field [0001] The present invention relates to the communication field, in particular, to methods and devices for sending and receiving downlink information. Background technique [0002] Machine Type Communication (MTC for short) User Equipment (UE for short), also known as Machine to Machine (M2M for short) user communication equipment, is currently the main application form of the Internet of Things. In recent years, due to the high spectrum efficiency of Long-Term Evolution (abbreviated as LTE) / Long-Term Evolution Advanced (abbreviated as LTE-Advance or LTE-A), more and more mobile operators choose LTE / LTE-A is the evolution direction of the broadband wireless communication system. MTC multi-type data services based on LTE / LTE-A will also be more attractive. [0003] In the existing LTE / LTE-A system, the terminal first receives the Primary Synchronization Signal / Secondary Synchronization Signal (PSS / SSS for short) and the Physical Broadcast Channel (PBCH for ...

Claims

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Application Information

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IPC IPC(8): H04L5/00H04W72/04
CPCH04L5/00H04W72/04
Inventor 石靖夏树强戴博方惠英刘锟陈宪明张雯
Owner ZTE CORP
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