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Information transmission method and apparatus

A technology of information transmission and transmission window, which is applied in the field of information transmission methods and devices, and can solve problems such as adjustment and limitation of NB-IOTSIB1 message transmission performance

Active Publication Date: 2017-07-04
ZTE CORP
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Problems solved by technology

[0004] However, since the bandwidth of the NB-IOT system is only 180kHz, it is only equivalent to 1 PRB resource of the LTE system, that is to say, the number of PRBs allocated for the NB-IOT SIB1 message can only be 1 at most, so, according to the existing In the way of sending SIB1, it is no longer possible to dynamically adjust the number of PRBs allocated according to the TBS of the NB-IOT SIB1 message. In this case, when the TBS of the NB-IOT SIB1 message exceeds a certain threshold value, if still based on Channel coding or rate matching of a single subframe will undoubtedly severely limit the transmission performance of NB-IOT SIB1 messages

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  • Information transmission method and apparatus
  • Information transmission method and apparatus

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Embodiment Construction

[0107] In order to make the purpose, technical solution and advantages of the present invention more clear, the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined arbitrarily with each other.

[0108] figure 1It is a flowchart of the information transmission method of the present invention, such as figure 1 shown, including:

[0109] Step 100: Set transmission windows in the scheduling window; wherein, one scheduling window includes K transmission windows, one transmission window includes P available subframes, K is an integer greater than 0, and P is an integer greater than 1.

[0110] Among them, the scheduling window can also be called a scheduling period, and the transmission window can also be called a repetition period or a repeated transmission interval; th...

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Abstract

The invention discloses an information transmission method and apparatus. The method comprises the following steps: setting transmission windows in a scheduling window, wherein one scheduling window comprises K transmission windows, one transmission window comprises P available sub-frames, K is an integer greater than 0, and P is an integer greater than 1; and transmitting information by the available sub-frames in the transmission windows. According to the technical scheme provided by the invention, by adoption of the manner of transmitting information by at least two sub-frames in one transmission window, channel encoding or rate match for system information, such as an SIBI message, is not limited to a single sub-frame anymore, the information transmission method and apparatus are particularly suitable for the transmission of system information of an NB-IOT system as an example, and ensure that the transmission performance of the system information, such as an NB-IOT SIBI message.

Description

technical field [0001] The invention relates to cellular Internet of Things (C-IOT, Cellular Internet Of Things) technology, in particular to an information transmission method and device. Background technique [0002] In order to meet the needs of C-IOT, a new access system named NarrowBand-CellularInternet Of Things (NB-IOT, NarrowBand-CellularInternet Of Things) was approved in the 69th plenary session of the Third Generation Partnership Project (3GPP, 3rdGeneration Partnership Project) propose. Among them, the NB-IOT system focuses on low-complexity and low-throughput radio access technologies. The main research goals include: improved indoor coverage, support for a large number of low-throughput user equipment, low delay sensitivity, ultra-low Equipment cost, low equipment power consumption and network architecture. The transmission bandwidth of the uplink and downlink of the NB-IOT system is 180kHz, which is the same as the bandwidth of a physical resource block (PRB...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/00
CPCH04L1/0006H04L1/0042H04L1/0072H04L1/0009H04L1/0023H04L1/1628H04L1/22H04L5/14H04L1/00H04W72/0446
Inventor 陈宪明戴博方惠英夏树强石靖刘锟
Owner ZTE CORP
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