5
votes
Does Cell Phone use Public or Private IP address?
The Cell Phone get a Private IP address.They will do NAT as the packet leave out the Operator's network. They use Layer 2 PPP protocol to negotiate the IP for UEs.
Ifconfig output from my Mobile:
- 1,412
5
votes
Increasing the MTU size for 3G/LTE networks
I think it's always best to allow end-user traffic to use an MTU of 1500. Therefore when encapsulated the overlay network has to cater for this either by a larger MTU size in the encapsulated domain ...
- 1,181
5
votes
Does IPv6 remove the need for a VPN?
The primary point of IPv6 is that it restores the original idea of every device having a unique IP address, which restores the end-to-end concept of IP. NAT is a kludge to extend the life of IPv4 ...
- 100k
5
votes
Accepted
Network Ten LTE Hubs Into One Network
If you have access to 10 layer 3 switches you can certainly make this work. Treat each trailer as if it is a campus building with local internet. choose the trailer with the NAS as the core of the ...
- 311
4
votes
long range antenna
Short answer: This is not going to work.
Depending where you live, there are regulations that specify the transmitter power and antenna type (gain). This varies with the frequency band you are ...
- 67.9k
4
votes
Accepted
Does IPv6 remove the need for a VPN?
I think your idea that consumer and mobile ISPs will give out static IPv6 is optimistic to say the least. Some may do so but many probably will not.
VPNs provide two main features.
They provide ...
- 13.6k
4
votes
Accepted
Increasing the MTU size for 3G/LTE networks
I've done some tests with different MTU values. All tests were performed for mobile data, no voice affected or tested.
Results are as follows:
Increased MTU in LTE network allows for more efficient ...
- 1,133
4
votes
Network Ten LTE Hubs Into One Network
Two ideas...
I think the typical way to handle it would be a router in every trailer with three subnets: one goes to a switch for a trailer LAN, one goes to a campus backbone LAN for access to ...
- 371
4
votes
Accepted
Is There an Indication in Protocol Stack showing that the End Host is Mobile?
An IP address is an IP address, and there is nothing in IP that distinguishes what you are looking for. There is the IANA IPv4 Special-Purpose Address Registry that explains all the special-purpose ...
- 100k
3
votes
Mobile phone device to device communication via 3G\4G with no network provider
There are multiple limitations:
Network Architecture: A communication from a mobile device to another is not direct, it must pass trough a BTS (Base Transceiver Station) and a MSC (Mobile Switching ...
- 4,487
3
votes
What is the IS-41 location registration process?
IS-41 is a protocol used to manage many aspects of mobile (as in cellular phone) networks.
When someone places a call (or sends a text message or IP packet) to a subscriber of a mobile network, the ...
- 181
3
votes
Who Actually Utilizes Mobile IP?
I'd love to be corrected, but I believe that MobileIP was stillborn. There's a paper here from a researcher at Rutgers that summarizes the situation. The problem it was trying to solve - splitting ...
- 401
3
votes
long range antenna
While it can work using highly directional antennas (which increase both transmission and reception at the AP for devices in the correct spatial region relative to the antenna, compensating for the ...
- 2,746
3
votes
Can mobile devices take a global IPv6 address by means of only routing?
The ISPs will not route any IPv6 prefix longer than /48, and certainly not a /128 address for a single device, but there is Mobile IPv6 that automatically builds a tunnel back to the "home" ...
- 100k
3
votes
When a mobile phone is connected to a wireless mobile network, is it assigned an IP address?
If a host, including a phone, attaches to an IP network by DHCP, then it will get an IP address from a DHCP server on the network, assuming there is a DHCP server on the network.
Typically, a Wi-Fi ...
- 100k
3
votes
When a mobile phone is connected to a wireless mobile network, is it assigned an IP address?
Phones have a IP address. If you are connected to wifi you get the IP address from the wifi router. If not connected to wifi it get the ip from the cell provider.
- 61
3
votes
Can you create an open LTE network?
The answer is: "yes, technically"
You most definitely can create an open network, it's not even that hard. You won't realistically be able to start your own network, but many telecoms will gladly ...
- 131
3
votes
Why do we need to aggregate frames into a multiframe in GSM networks?
There are two kinds of multiframes in GSM. They are:
Traffic multiframe: 26 frames taking 120 ms. In a traffic multiframe, 24 frames are used for traffic. These are numbered 0 to 11 and 13 to 24. One ...
- 783
2
votes
Does the cell phone model affect the arrival time of SMS
In practice. If operator deliver SMS only over GSM network, but not over 3G network and support 3G for data transfer. Some 3G phones connect only by "better" 3G protocol and cant recieve sms quickly. ...
- 774
2
votes
For 2G/GSM networks, are there "portable" cell towers?
What you might be able to use is a kind of portable femtocell but as wikipedia explains this requires an internet connection so this would probably not help in your desert or jungle scenario (it's ...
- 2,658
2
votes
For 2G/GSM networks, are there "portable" cell towers?
Yes, there are mobile/portable cell towers (base stations).
They're are frequently used by carriers during planned events like concerts where there's normally just a huge cell since no-one's usually ...
2
votes
What is the GSM location registration process?
I hope you are referring to the GSM location update procedure during the first attach or when MS is visiting a new location. This normally happens when the mobile is switched on and attempts to ...
- 1,412
2
votes
Accepted
Cell information in GSM, UMTS, LTE
You are partially right.Actually,The channel naming conventions will be slightly different when you look through the call flows in GSM,UMTS and LTE. The information related to MCC,MNC will be ...
- 1,412
2
votes
How does Mobile Number Portability work?
To expound a little more, an LRN(Local routing Number) is used to identify a carrier that calls for a given TN need to be routed to. If a subscriber changes to another telephone service provider, only ...
- 636
2
votes
Accepted
How does Mobile Number Portability work?
Normally, a number from the native range is translated from the telephone number to the SIM's IMSI number. Alien number are recognized by their prefix.
With MNP activated, a translation directory is ...
- 86.4k
2
votes
Accepted
Handling high number of concurrent GSM device connections
Standard BTS (with 3 cells) can handle around 9 erlangs which is enough to support circa 1500 subscribers, but everything depends. All station are built to suit terrain and people density on given ...
- 1,587
2
votes
Increasing the MTU size for 3G/LTE networks
It's a reasonable thing to do, technically, but I don't believe it will help improve the users' experience, which is really the only thing that matters in mobile networks. And so, why bother?
...
- 401
2
votes
Does Cell Phone use Public or Private IP address?
Does mobile phone/cell phone get a private IP address or public IP address?
Both scenarios are possible and in use.
If the cell phone gets a private IP address, I assume that the telecom operator ...
- 86.4k
2
votes
How cellular networks gets internet?
If you think in the physical layer of the networking, everything, in the end, interpreted as 1s and 0s. So according to what kind of packet you are sending to the base station, it is treated as it ...
- 760
2
votes
Authentication center in GSM
When the mobile is turned on, if the LAI in the BCCH broadcast is the same as the one stored on the SIM card at IMSI detach (i.e. the location area has changed), then it sends an IMSI attach rather ...
- 305
Only top scored, non community-wiki answers of a minimum length are eligible