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Sounding reference signal (SRS) sending method, SRS sending device, receiving method and receiving device

A technology for detecting reference signals and sending methods, applied in digital transmission systems, error prevention, electrical components, etc., can solve problems such as low efficiency of terminal sending SRS, and achieve the effect of improving efficiency

Inactive Publication Date: 2016-07-27
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The present invention provides a sounding reference signal SRS sending method, device, receiving method and device, to at least solve the problem of low efficiency of terminal sending SRS in the related art

Method used

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  • Sounding reference signal (SRS) sending method, SRS sending device, receiving method and receiving device
  • Sounding reference signal (SRS) sending method, SRS sending device, receiving method and receiving device
  • Sounding reference signal (SRS) sending method, SRS sending device, receiving method and receiving device

Examples

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Embodiment 1

[0084] A method for sending an SRS, comprising sending an SRS on a first bandwidth (equivalent to the aforementioned designated bandwidth). The first bandwidth is a virtual continuous bandwidth composed of one or more discontinuous PRB clusters. A PRB cluster consists of multiple consecutive PRBs in the system bandwidth. The number of PRBs included in multiple discontinuous PRB clusters may be the same or different.

[0085] Figure 9 is a schematic diagram of the first bandwidth according to an embodiment of the present invention, such as Figure 9 As shown, the two PRB clusters indicated by oblique lines in the system bandwidth are virtualized into a continuous first bandwidth, and the UE will send SRS according to a certain pattern period within the first bandwidth.

[0086] In order to use the SRS bandwidth of 4 PRBs to transmit the SRS, both the first bandwidth and the number of PRBs included in the PRB cluster should be integer multiples of 4.

[0087] The first band...

Embodiment 2

[0099] Similar to Embodiment 1, the first bandwidth is used as the frequency domain sending range of the SRS, and the SRS is sent on the first bandwidth. The difference is that an SRS bandwidth transmission method of 6 PRBs is adopted, that is, the SRS transmitted by the UE in the SRS transmission subframe occupies 6 PRBs in the frequency domain. The frequency hopping formula is determined by the first bandwidth. The number of PRBs included in the first bandwidth is an integer multiple of 6. The UE sends the SRS in the first bandwidth according to the preset frequency hopping pattern according to the configuration of the eNB. The eNB can notify the UE of the starting position of its frequency domain, occupied comb teeth, transmission cycle and offset, and the cyclic offset of the sequence used. The frequency hopping method is predefined or notified. In this way, for a UE whose RF transmission bandwidth is only 1.4MHz, an SRS that occupies the entire working narrowband can be...

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Abstract

The invention provides a sounding reference signal (SRS) sending method, an SRS sending device, a receiving method and a receiving device. The sending method comprises the step of acquiring the information of a specified bandwidth by a terminal. The specified bandwidth is composed of one or multiple non-contiguous physical resource block (PRB) clusters within the system bandwidth of the serving cell of the terminal and the PRB cluster is composed of one part of continuous PRBs within the system bandwidth. The specified bandwidth is different from the SRS bandwidth of the serving cell of the terminal. According to the technical scheme of the invention, the problem in the prior art that the terminal is low in SRS sending efficiency can be solved. Meanwhile, the SRS sending efficiency of the terminal is further improved.

Description

technical field [0001] The present invention relates to the communication field, in particular, to a method and device for sending a Sounding Reference Signal (SRS), and a method and device for receiving it. Background technique [0002] Machine Type Communication (MTC for short) user equipment (User Equipment, user equipment or terminal 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. [0003] 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. [0004] The MTC device is generally a low-cost device, and has the characteristics of a relatively small supporte...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/00
CPCH04L1/00
Inventor 张雯夏树强
Owner ZTE CORP