Sending method and device and receiving method and device for reference signal

A reference signal and transmission method technology, applied in the field of communication, can solve the problem that the configuration scheme of cell reference signal is difficult to meet the needs of different UEs

Inactive Publication Date: 2017-03-29
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a reference signal sending method and device, receiving method and device, to at least solve the problem in the related art that the configuration scheme of the cell reference signal is difficult to meet the needs of different UEs

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  • Sending method and device and receiving method and device for reference signal
  • Sending method and device and receiving method and device for reference signal
  • Sending method and device and receiving method and device for reference signal

Examples

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Embodiment 1

[0213] In this optional embodiment, a method for sending a reference signal is provided, the reference signal is sent through N antenna ports, where N is greater than or equal to 1; in addition, the reference signal is only used in public messages or part of public messages The corresponding time domain resources and / or frequency domain resources are transmitted. The public message includes at least one of the following: MIB, SIB, paging message, downlink control information for scheduling paging message, RAR, downlink control information for scheduling RAR.

[0214] The CRS will be used as an example for illustration below, and it should be noted that, in practical applications, this optional embodiment is not limited to the CRS.

example 1

[0216] The CRS is only sent in the subframe in which the MIB is sent, and is not sent in other subframes. In the subframe in which the CRS is sent, the CRS is sent in full bandwidth. Or, further, the CRS is only sent on the frequency domain resource where the MIB is sent. For example, in the existing LTE system, the MIB is only sent in the central 6 PRBs, so the CRS is only sent on the 6 PRBs where the MIB is located. The subframes involved in the first embodiment may be LTE subframes in the related art, or M-subframes in the narrowband LTE system, where each M-subframe is composed of 6 consecutive subframes, for In M-subframes, CRS can be sent on all subframes of M-subframes, and can also be sent on some subframes, occupying one PRB in the frequency domain; among them, CRS can be used for MIB demodulation, and can also be used UE-specific measurement; UE performs measurement on the subframe or M-subframe where the MIB is located.

[0217] For example, in narrowband LTE, the ...

example 2

[0221]The CRS is only sent in the subframes in which the MIB and SIB are sent, and is not sent in other subframes; wherein, the CRS can be used for demodulation of the MIB and SIB, and can also be used for UE measurement. The UE performs measurement on the subframe or M-subframe where the MIB / SIB is located. Or, further, the CRS is only sent on the frequency domain resource for sending the MIB and the SIB, and in the subframe for sending the MIB and the SIB, the CRS is not sent on PRBs other than the MIB and the SIB.

[0222] The antenna port of the CRS and / or the pattern corresponding to the antenna port may be preset or notified by the eNB.

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Abstract

The invention provides a sending method and device and a receiving method and device for a reference signal. The method comprises the step that: a base station sends a first reference signal on a first time-frequency resource by N antenna ports, wherein the first time-frequency resource is predefined and/or is configured by the base station, and N is a positive integer. By the sending method and device and the receiving method and device for the reference signal, which are provided by the invention, the problem that in the related art, a configuration scheme of a cell reference signal is difficult to meet requirements of different UE (User Equipment).

Description

technical field [0001] The present invention relates to the communication field, in particular, to a reference signal sending method and device, and a receiving method and 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 the 3GPP technical report TR45.820V200, several technologies applicable to the Cellular Internet of Things (C-IOT) are disclosed, among which the NB-LTE technology is the most eye-catching. The system bandwidth of the system is 200kHz, which is the same as the channel bandwidth of the Global System for Mobile Communication (GSM), which brings great advantages for the NB-LTE system to reuse the GSM spectrum and reduce the mutual interference between adjacent and GSM channels. Great convenience. The transmission bandwidth and downlink subcarrier spaci...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L5/00
CPCH04L5/001H04L5/0048H04L5/0053
Inventor 张雯夏树强戴博徐俊石靖陈宪明刘锟
Owner ZTE CORP
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