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Multi-band digital intermediate frequency processing device and method

A digital intermediate frequency and processing device technology, applied in the field of communication, can solve problems such as the inability to realize multi-band digital intermediate frequency processing, and achieve the effect of multi-band digital intermediate frequency processing

Active Publication Date: 2018-03-09
SANECHIPS TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] Aiming at the problem that multi-band digital intermediate frequency processing cannot be realized in the related art, the present invention provides a multi-band digital intermediate frequency processing device and method to at least solve the above-mentioned problems

Method used

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  • Multi-band digital intermediate frequency processing device and method
  • Multi-band digital intermediate frequency processing device and method

Examples

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example 1

[0137] Single-band multi-channel digital IF downlink processing

[0138] Link processing requirements: 2 channels (i.e. m=2), each channel configuration bandwidth supports up to 60MHz, working frequency range 1810MHz~1870MHz, Global System for Mobile Communications (GSM) single-mode processing, 12 channels per channel Carrier, GSM baseband input sampling rate 13 / 12Msps.

[0139] like Figure 7 Shown: In this application scenario, there are a total of 24 GSM carriers, that is, K=24; carriers 1 to 24 are input into the "multi-carrier DUC processing unit" in parallel, and the carrier rate up-conversion is completed in this unit, and 24 is output after interpolation filtering The carrier data is sent to the routing unit 1, because each channel corresponds to a single frequency band, so the routing unit 1 completes the mapping of 12 carriers from the 24 carriers to channel 1, and selects the other 12 carriers to map to channel 2. Because two channels need to be processed, in sing...

example 2

[0141] Multi-Band Multi-Channel Digital IF Downlink Processing

[0142] Link processing requirements: 4 channels (that is, m=4), each channel configuration bandwidth supports up to 40MHz, supports TD-SCDMA and Time Division Long Term Evolution (TD-LTE) mixed-mode processing, and the working frequency band is 1880MHz ~1910MHz (F frequency band) and 2010MHz~2020MHz (A frequency band), each channel carrier configuration is 1 LTE20MHz carrier plus 3 TD-SCDMA carriers. Each channel contains both F-band and A-band.

[0143] like Figure 7 Shown: In this application scenario, there are 4 LTE carriers and 12 TD-SCDMA carriers, a total of 16 carriers, that is, K=16. Carriers 1 to 16 are input to the multi-carrier DUC processing unit, which completes the rate up-conversion of LTE carriers and TD-SCDMA carriers respectively, and outputs K carrier data with the same sampling rate to routing unit 1, because in this scenario, 2 frequency bands, so L=2, the number of channels is m=4, so n...

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Abstract

The invention discloses a multi-band digital intermediate frequency processing device and method, wherein the device includes: a CFR processing module for performing CFR processing on multi-carrier baseband data according to frequency bands; and a DPD processing module for performing CFR processing on multi-carrier baseband data according to channels The multi-carrier baseband data processed by the CFR is processed by DPD. The invention solves the problem that multi-band digital intermediate frequency processing cannot be realized, and further realizes multi-band digital intermediate frequency processing.

Description

technical field [0001] The present invention relates to the communication field, in particular, to a multi-band digital intermediate frequency processing device and method. Background technique [0002] In large-scale commercial deployments in recent years, the network construction mode of baseband processing unit (Base Band Unit, abbreviated as BBU) + radio remote unit (radio remote unit, abbreviated as RRU) is generally accepted. Due to the differences in spectrum policies in various countries and regions, the spectrum resources obtained by global mobile operators are relatively scattered, and they generally face the challenge of multi-standard and multi-band. [0003] Taking China Mobile as an example, it has successively obtained F (1880MHz-1920MHz), A (2010MHz-2025MHz), E (2320MHz-2370MHz) and D (2570MHz-2620MHz) 4 frequency bands. The many and scattered frequency bands used by TD-SCDMA lead to a very complicated combination of indoor and outdoor frequency bands, whic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L25/02H04L27/26
Inventor 赵兴山
Owner SANECHIPS TECH CO LTD
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