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Measurement reference signal configuration method, transmission method and device

A technology for measuring reference signals and configuration methods, applied in pilot signal allocation, transmission path sub-channel allocation, wireless communication, etc., can solve problems such as inability to send SRS, and achieve the effect of improving utilization

Inactive Publication Date: 2014-06-04
HUAWEI TECH CO LTD
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Problems solved by technology

For example, if the carrier bandwidth is 50PRB, then the tree structure described in the example has a maximum width of 48PRB, and there will be two PRBs in the carrier bandwidth that cannot be covered by the tree structure, so that the UE cannot send SRS on these two PRBs

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  • Measurement reference signal configuration method, transmission method and device
  • Measurement reference signal configuration method, transmission method and device
  • Measurement reference signal configuration method, transmission method and device

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Embodiment Construction

[0053] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0054] See figure 1 , figure 1 This is a flowchart of a method for configuring measurement reference signals according to an embodiment of the present invention; the method includes:

[0055] Step 101: Select a tree structure to obtain the zeroth level bandwidth of the tree structure.

[0056] In the LTE system, the configuration of the sounding reference signal (SRS) is based on a tree structure. A cell can adopt different tree structures....

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Abstract

The embodiment of the invention provides a measurement reference signal configuration method, a transmission method, a device, a base station and user equipment. The configuration method comprises the steps that a cell tree-shaped structure is selected, and the zero level bandwidth of the tree-shaped structure is acquired; if SRS bandwidth needed by the UE and the zero level bandwidth of the tree-shaped structure are different, the total bandwidth of each level of the tree-shaped structure is respectively expanded into the bandwidth same as the needed SRS bandwidth, and the starting frequency domain position of the SRS bandwidth of each level at the same level is recorded; the level of the SRS bandwidth needed by the UE in the expanded tree-shaped structure is determined; the level of frequency hopping bandwidth needed by the UE in the expanded tree-shaped structure is determined; the levels of the SRS bandwidth and the frequency hopping bandwidth in the expanded tree-shaped structure and the starting frequency domain position are notified to the UE; and the UE calculates the actual bandwidth of SRS transmission. According to the embodiment of the invention, the utilization rate of a resource block can be improved.

Description

Technical field [0001] The present invention relates to the field of communication technology, and in particular to a configuration method, transmission method, device, base station and user equipment of a measurement reference signal. Background technique [0002] In the Long term evolution (LTE, Long term evolution) system, the measurement reference signal (SRS, sounding reference signal) is a signal sent by the user equipment (UE, user equipment) to the evolved base station (eNB, evolvednodeB), so that the eNB can perform the uplink channel. The measurement, scheduling, modulation and coding selection, transmission and other functions based on the measurement results. [0003] Generally, before the UE sends the SRS, the evolved base station configures the SRS parameters of the UE and sends the configured SRS parameters to the UE. After that, the UE knows which time-frequency resources should be used after receiving the SRS parameters Send SRS. [0004] In the LTE system, the SRS...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L5/00
CPCH04W72/04H04B1/713H04L5/00H04L5/0012H04L5/0051
Inventor 李强
Owner HUAWEI TECH CO LTD
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