Requirement to reduce Latency on 3G Interface


I currently have an embedded system running on RALink MIP's.

A Mini PCIe Cellular module connected via USB to the main board is acting as the WAN Link.

The system is running OpenWRT.

I have the device connected to the internet, however there is a strange problem which does not seem to happen on other routers:

Ping the WAN IP with 32 Bytes response time is about 500ms.

Ping the WAN IP with >500 Bytes, response time is about 120ms.

I have been told this problem is caused by a mixture of NAT/Firewall but no details were provided so its just a guess as far as i am concerned.

I need this problem sorted, so looking for someone with experience in cellular systems / modems and perhaps also openWRT on Embedded systems.

Please apply asap. Scope for other work for good engineers.

I have attached a screenshot of the problem as a customer would see it.

********** Please do not dump a generic proposal on here, only bid if you are [url removed, login to view] you dump a poposal which looks like its been used over and over you will not be selected! **********

Skills: Embedded Software, Engineering, Linux, Mobile Phone, Software Architecture

See more: ping a phone, ping a mobile phone, ping a mobile, openwrt architecture, mobile system architecture, mobile ping, looking for software engineers, i need an engineers, good response time, engineers looking for work, openwrt firewall, ralink, Embedded systems, wan latency, mobile screenshot, software architecture proposal, pcie, poposal, ping phone software, 500 screenshot, customer interface, scope mobile phone, generic phone, usb wan, ping mobile device

About the Employer:
( 1 review ) Ashbourne, United Kingdom

Project ID: #5427353

10 freelancers are bidding on average $334 for this job


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Hello! The first of all let me tell you about my expirence. I'm working in large telecommunication manufacturer and I have about 10 years of expirence in wireless technologies, such as 3G, WiMax, LTE. Your prob More

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