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Diversity combining method, medium and device suitable for multipath time domain signals in 5G system RHUB

A time-domain signal, 5G technology, applied in the field of communications, can solve the problem of combining gain that cannot be combined into performance signals, and achieve the effect of solving the problem of worsening and improving the combining gain.

Pending Publication Date: 2022-06-24
成都中科微信息技术研究院有限公司
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Problems solved by technology

[0005] The present invention aims to provide a diversity combination method, medium and device suitable for multi-channel time-domain signals in the 5G system RHUB, so as to solve the problem that the existing technology cannot combine signals with better performance and the combination gain

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  • Diversity combining method, medium and device suitable for multipath time domain signals in 5G system RHUB
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  • Diversity combining method, medium and device suitable for multipath time domain signals in 5G system RHUB

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Embodiment

[0054] like figure 1 As shown, this embodiment proposes a diversity combining method suitable for multi-channel time-domain signals in a RHUB of a 5G system, including the following steps:

[0055] Step 1: Select the time domain data of each channel signal for a period of time according to the system frame mark;

[0056] Step 2: Calculate the signal-to-noise ratio of each channel of the selected time domain data according to the second-order fourth-order matrix method:

[0057] Step 201: Calculate the estimated value of the second-order matrix according to the time-domain data selected from each channel signal:

[0058]

[0059] in, Represents the estimated value of the second-order matrix of the time domain data of the i-th channel signal; S i (n) is the nth complex signal of the i-th channel signal, which is a discrete complex signal representation; N is the length of complex data;

[0060] Step 202: Calculate the estimated value of the fourth-order matrix according to...

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Abstract

The invention provides a diversity combining method, medium and device suitable for multipath time domain signals in a 5G system RHUB, and the method employs a cross-correlation multichannel signal synchronization in-phase adjustment method, can rapidly carry out the synchronization and in-phase adjustment of multipath signals, obtains a better combination gain, and solves a problem that the combination does not have a gain, but is worsened. A second-order and fourth-order matrix method suitable for hardware implementation and blind calculation is used for carrying out signal-to-noise ratio estimation on each channel signal, weight coefficient distribution is carried out according to the signal-to-noise ratio of each channel, maximum-ratio combination of multiple channel signals is carried out, the problem that the performance is reduced after combination due to the fact that the signal-to-noise ratios of the multiple channel signals are large in difference is solved, and the performance is improved. And when the signal-to-noise ratios of the multi-channel signals are equivalent, the problem of combined gain does not exist, and the maximum combined gain is finally obtained.

Description

technical field [0001] The present invention relates to the field of communication technologies, and in particular, to a diversity combining method, medium and device suitable for multi-channel time domain signals in a 5G system RHUB. Background technique [0002] In the 5G small station of wireless communication, the remote radio frequency unit pRRU used has low transmit power and a small single coverage area, so it is necessary to deploy more remote radio frequency units pRRU to increase the area coverage, so the remote aggregation unit is used. The RHUB performs signal aggregation on the deployed remote radio unit pRRU. [0003] The aggregation of the remote radio unit pRRU signal by the remote aggregation unit RHUB is the most critical function of connecting multiple remote radio frequency units pRRU to a remote aggregation unit RHUB, which directly affects the coverage capability and diversity gain of the 5G system. The multi-channel time-domain signals commonly used i...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W24/02H04W28/06H04W52/42
CPCH04W52/42H04W24/02H04W28/06
Inventor 薛顺瑞卜智勇侯阳阳陈英李秋雪
Owner 成都中科微信息技术研究院有限公司
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