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Data processing method, device and system and storage medium

A data processing and data technology, applied in the field of communication, can solve the problems of high complexity of PRACH signal processing, increase of side processing complexity, and many times of fronthaul interaction, and achieve the effect of reducing fronthaul interaction overhead

Active Publication Date: 2021-09-17
成都爱瑞无线科技有限公司
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

The above operations require 2 interactions between DU / BBU and RU / RRU / rHuB. At the same time, because the PRACH subcarrier spacing may be different from other physical channels, and the PRACH cyclic prefix length is different from other physical channels, it is necessary for RU / RRU / rHuB to be dedicated to PRACH. Add modules such as decyclic prefix and fast Fourier transform, and RU / RRU / rHuB needs to identify which time slots, symbols, and frequency domain resources are PRACH and which are non-PRACH, which increases the complexity of RU / RRU / rHuB side processing
[0009] Therefore, in order to solve the problem of high complexity of PRACH signal processing on the RU / RRU / rHuB side and the number of fronthaul interactions, it is necessary to provide a PRACH signal processing solution that reduces the complexity and the number of fronthaul interactions

Method used

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  • Data processing method, device and system and storage medium
  • Data processing method, device and system and storage medium
  • Data processing method, device and system and storage medium

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0057] Figure 4 A schematic diagram showing an exemplary data flow of a data processing method that only transmits frequency domain data of all uplink physical channels or signals from the fronthaul interface of RU / RRU / rHuB to DU / BBU, and performs PRACH signal detection on the DU / BBU side .

[0058] Such as Figure 4 As shown, the RU / RRU / rHuB side needs to perform processing on all uplink physical channels or signals (including physical random access channel data and non-physical random access channel data) in the same preset method, and the same preset method includes Perform operations such as analog beamforming, analog-to-digital domain conversion, cyclic prefix removal, fast Fourier transform, digital beamforming, and IQ compression on all uplink physical channels or signals without distinguishing between channels, and the processed The frequency domain data of all uplink physical channels or signals are sent to the DU / BBU side to transmit the frequency domain data of a...

example 2

[0063] Figure 5 It shows that the fronthaul interface from RU / RRU / rHuB to DU / BBU not only transmits the frequency domain data of all uplink physical channels or signals, but also transmits the time domain cyclic prefix field at multiple symbol positions obtained by the RU / RRU / rHuB side Schematic diagram of an exemplary data flow of the data processing method. Different from the above example 1, in this example 2, the time domain cyclic prefix field is added in the fronthaul signaling from RU / RRU / rHuB to DU / BBU to restore the time domain data of the PRACH signal on the DU / BBU side, thereby assisting PRACH Signal Detection.

[0064] Such as Figure 5 As shown, similar to Example 1, the RU / RRU / rHuB side needs to perform processing on all uplink physical channels or signals (including physical random access channel data and non-physical random access channel data) in the same preset manner, the same The preset methods include performing operations such as analog beamforming, a...

example 3

[0072] Figure 6 It shows that the fronthaul interface from RU / RRU / rHuB to DU / BBU not only transmits the frequency domain data of all uplink physical channels or signals, but also transmits the data of the multi-symbol time domain data field after removing the cyclic prefix on the RU / RRU / rHuB side Schematic diagram of an exemplary data flow of the processing method. Different from the previous example 1 and example 2, in this example 3, the multi-symbol time-domain data field after removing the cyclic prefix is ​​added to the fronthaul signaling from RU / RRU / rHuB to DU / BBU to restore the PRACH on the DU / BBU side Time domain data of the signal, thereby assisting PRACH signal detection.

[0073] Such as Figure 6 As shown, similar to Example 1, the RU / RRU / rHuB side needs to perform processing on all uplink physical channels or signals (including physical random access channel data and non-physical random access channel data) in the same preset manner, the same The preset metho...

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Abstract

The present invention discloses a data processing method, device and system for detecting a physical random access signal, the method comprising the steps of: receiving uplink physical channel data, the uplink physical channel data comprising physical random access channel data and non-physical random access channel data; processing the non-physical random access channel data and the physical random access channel data according to the same preset mode; and detecting the physical random access signal from the processed uplink physical channel data. By executing the data processing flow of multiplexing the physical random access signal with the non-physical random access signal at the radio frequency processing unit or expansion unit side, the invention can realize the purposes of reducing the complexity of processing the random access signal at the radio frequency processing unit or expansion unit side and reducing the forward transmission interaction times.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a data processing method, device, system and storage medium for detecting physical random access signals. Background technique [0002] For indoor coverage of wireless communications, distributed base stations are currently one of the most important deployment forms. Distributed base stations are low in cost and highly flexible in construction. The core of the original distributed base station structure is to separate the traditional macro base station baseband processing unit (Baseband Unit, BBU) from the radio frequency processing unit (Remote Radio Unit, RRU), and the two are connected through optical fibers. In network deployment, the BBU, core network and wireless network control equipment are concentrated in the computer room, and then connected to the RRU deployed on the planned site through optical fibers to complete network coverage. Thereby reducing con...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W74/08
CPCH04W74/0833
Inventor 唐懿夫肖航邓珂袁航
Owner 成都爱瑞无线科技有限公司
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