System upgrading principles:

• Ensuring the coverage result of 2G network indoor distribution system
• Ensuring the coverage result of 3G network signal even distribution
• Performing adequate change based on 2G system equipment for upgrading
• Saving cost and enhancing operator’s invest benefit in the upgrading

Solutions:

• Old 2G indoor distribution system reconstruction solution
• New 3G network solution
• Multi-mode 2G and 3G system compatibility solution