Frequency domain CPRI frame encapsulation method and BBU

A frame encapsulation, frequency domain technology, used in electrical components, transmission systems, etc.

Active Publication Date: 2016-03-30
ALCATEL LUCENT SHANGHAI BELL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] This architecture poses a great challenge to the Common Public Radio Interface (CPRI) bandwidth requirements

Method used

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  • Frequency domain CPRI frame encapsulation method and BBU
  • Frequency domain CPRI frame encapsulation method and BBU
  • Frequency domain CPRI frame encapsulation method and BBU

Examples

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Embodiment Construction

[0022] Preferred embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although preferred embodiments of the invention are shown in the drawings, it should be understood that the invention may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

[0023] Hereinafter, the present invention will be described by taking frequency-domain CPRI encapsulation of the downlink (that is, the link from the BBU to the RRH) as an example. However, those skilled in the art can understand that the uplink (that is, the link from the RRH to the BBU) Road) CPRI encapsulation can adopt a similar idea. For example, with figure 1 The position e in is used as the division position ( figure 1 The position e is the uplink div...

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Abstract

The invention provides a frequency domain CPRI frame encapsulation method and a BBU executing the method. The method comprises the steps of configuring a CPRI frame header part based on the long-term stability content, the part including a reference signal power field, a PDCCH power field, a system bandwidth field and an antenna number field; and configuring a CPRI frame effective load part, including compressed I / Q data and sub frame header part based on short-term stability content.

Description

technical field [0001] The present invention generally relates to the field of wireless communication, and more specifically, relates to a method for encapsulating frequency-domain CPRI frames and a baseband processing unit (BBU) for executing the method. Background technique [0002] The current wireless access network is facing many challenges, such as high power consumption brought by a large number of base stations, coexistence of multiple standards, and rapid growth in capital expenditure (CAPEX) / operating in order to meet user needs due to the impact of the mobile Internet cost (OPEX), which provides a strong competitive environment for mobile operators. [0003] The centralized processing, cooperative radio, cloud, and green infrastructure radio access network (C-RAN) proposed by China Mobile is one solution to the above challenges. [0004] This architecture poses a great challenge to the bandwidth requirements of the Common Public Radio Interface (CPRI). At the sa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06
Inventor 唐彦波倪威徐朝军冷晓冰沈钢孟艳王伟
Owner ALCATEL LUCENT SHANGHAI BELL CO LTD
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