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Difference between revisions of "Open Source Baseband Firmware for 2G Cellular Networks"

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==Short Description==
 
==Short Description==
GSM/2G is the most ubiquitous mobile communication standard worldwide. Millions of people use it every day. An FPGA testbed with digital signal processing blocks from the [[RazorEDGE]] project on an ML605 board [1] and analog processing on the [[evalEDGE]] FMC module is available. The testbed supports only physical layer operations. A separate board with a CPU is required for baseband firmware. The [[Baseband Meets CPU]] project implements the [[PULP]] CPU next to the digital signal processing blocks on the FPGA board. However, there is no complete and open source baseband firmware available for 2G operation.
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GSM/2G is the most ubiquitous mobile communication standard worldwide. Millions of people use it every day. An FPGA based testbed with Digital Baseband Processing (DBB) from the [[RazorEDGE]] project on an ML605 board [1] and RF processing on the [[evalEDGE]] FMC module is available. A separate board with a CPU is required for Layer 2/Layer 3 (L2/L3) firmware. The [[Baseband Meets CPU]] project implements the [[PULP]] CPU next to DBB on the FPGA board. Eventually, RF, DBB, and CPU will be integrated into an ultra-low power 2G modem SoC. However, there is no complete and open source L2/L3 firmware available for 2G operation.
  
In this project, the freely available real-time OS FreeRTOS [2] shall be ported onto the [[PULP]] CPU. Subsequently, the L2/L3 source code from [[Open Source GSM Phone Call]], which is based on OsmocomBB [3] and a custom driver, shall run on top of FreeRTOS. This base can then be taken to roll-out an open source baseband software project with support beyond voice calls. A protocol tester [4] or OpenBTS [5] can be used as test environment.
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In this project, the real-time OS FreeRTOS [2] shall be ported onto the [[PULP]] CPU. Subsequently, the L2/L3 source code from [[Open Source GSM Phone Call]], which is based on OsmocomBB [3] and a custom driver, shall run on top of FreeRTOS. This base can then be taken to roll-out an open source L2/L3 firmware project with support beyond voice calls. A protocol tester [4] or OpenBTS [5] can be used as test environment.
  
 
===Status: Available ===
 
===Status: Available ===

Revision as of 16:45, 11 August 2015

EDGE Evolution Protocol Analyzer.jpg

Short Description

GSM/2G is the most ubiquitous mobile communication standard worldwide. Millions of people use it every day. An FPGA based testbed with Digital Baseband Processing (DBB) from the RazorEDGE project on an ML605 board [1] and RF processing on the evalEDGE FMC module is available. A separate board with a CPU is required for Layer 2/Layer 3 (L2/L3) firmware. The Baseband Meets CPU project implements the PULP CPU next to DBB on the FPGA board. Eventually, RF, DBB, and CPU will be integrated into an ultra-low power 2G modem SoC. However, there is no complete and open source L2/L3 firmware available for 2G operation.

In this project, the real-time OS FreeRTOS [2] shall be ported onto the PULP CPU. Subsequently, the L2/L3 source code from Open Source GSM Phone Call, which is based on OsmocomBB [3] and a custom driver, shall run on top of FreeRTOS. This base can then be taken to roll-out an open source L2/L3 firmware project with support beyond voice calls. A protocol tester [4] or OpenBTS [5] can be used as test environment.

Status: Available

Looking for 1-2 Semester/Master students
Contact: Benjamin Weber

Prerequisites

Interest in mobile communication

Character

15% Theory
70% Implementation
15% Testing

Professor

Qiuting Huang or Luca Benini

References

[1] Virtex-6 FPGA ML605 Evaluation Kit, June 2015.

[2] FreeRTOS - Market leading RTOS (Real Time Operating System) for embedded systems with Internet of Things extensions, June 2015.

[2] OsmocomBB, June 2015.

[3] E5515C 8960 Series 10 Wireless Communications Test Set, June 2015.

[4] OpenBTS | Open Source Cellular Infrastructure, June 2015.