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System information transmitting method, receiving method, transmitting device and receiving device

A technology of system information and sending method, which is applied in the field of communication, can solve the problem of high complexity of terminal blind detection system messages, and achieve the effect of reducing complexity

Inactive Publication Date: 2017-04-05
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The present invention provides a method for sending system information, a method for receiving it, a sending device, and a receiving device, so as to at least solve the problem of high complexity of terminal blind detection of system messages in the related art

Method used

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  • System information transmitting method, receiving method, transmitting device and receiving device
  • System information transmitting method, receiving method, transmitting device and receiving device
  • System information transmitting method, receiving method, transmitting device and receiving device

Examples

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Embodiment 1

[0102] This embodiment describes in detail the method provided by the present invention for downlink information transmission.

[0103] The base station eNB determines that the content of the downlink information is system message change information, ETWS, and CMAS, and the downlink information forms a dedicated DCI and transmits it in the downlink control channel.

[0104] The eNB sends the downlink information in a predetermined CSS narrowband and a predetermined PO time. Wherein, within the downlink information change period, there are one or more positions at the predetermined PO moment. For each PO moment, the eNB only sends the downlink information on one CSS narrowband, and at different PO moments when there are multiple positions at the PO moment, the predetermined CSS narrowbands may be the same or different.

[0105] When the coverage is enhanced, the eNB repeatedly sends the downlink information at multiple PO times on the predetermined CSS narrowband. The same PO...

Embodiment 2

[0111] Optionally, the above-mentioned downlink information is located in DCI or PDSCH, wherein the DCI is a DCI for scheduling common Paging messages. Preferably, there is a correspondingly scheduled PDSCH channel at this time, carrying Paging messages of corresponding part or all users. The eNB sends the DCI in one or more CSS narrowband / PRB groups and one or more POs according to the UE ID. That is, at this time, the Paging record information of some users is carried in the same Paging message, and the eNB schedules the Paging message containing the downlink information to be sent at one CSS narrowband and one or more PO times according to the UE IDs of these users . The Paging record information of another part of users is carried in another Paging message, and the eNB will schedule the Paging message containing the downlink information in another CSS narrowband and one or more PO times according to the UE ID of the other part of users to send, such as Figure 9 From th...

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Abstract

The invention provides a system information transmitting method, a receiving method, a transmitting device and a receiving device. The system information transmitting method comprises steps: the system information for being transmitted to a terminal is determined; and the above system information is transmitted in one or more predetermined narrowband positions. Thus, the transmitting mode problem of downlink control information independently carrying system message change information, ETWS (Earthquake and Tsunami Warning System), CMAS (Commercial Mobile Alert Service) and the like in a related technology can be solved, and effects of efficient transmission are achieved; and the problem of high complexity when the terminal blindly detects the downlink control information carrying the system message in the related technology can be solved, and the effects of reducing the complexity when the terminal blindly detects the system message are further achieved.

Description

technical field [0001] The present invention relates to the communication field, in particular to a system information sending method, a receiving method, a sending device and a receiving device. 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, more and more mobile operators Suppliers choose LTE / LTE-A as the evolution direction of broadband wireless communication systems. MTC multi-type data services based on LTE / LTE-A will also be more attractive. At the same time, in order to reuse the GSM spectrum, the narrowband LTE (Narrowband LTE, NB-LTE for short) technology is proposed by the industry, which can also support various types of MTC services. [0003] The existing LTE / LTE-A system performs transmission based on dynamic scheduling of each subframe, that is...

Claims

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Application Information

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IPC IPC(8): H04W24/02H04W4/00H04W16/14
CPCH04W24/02H04W16/14
Inventor 石靖戴博张雯陈宪明夏树强刘锟方惠英
Owner ZTE CORP
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