Questions tagged [lte]

LTE - Long Term Evolution - originally, the long term evolution of the 3G wireless systems; today, refers to a specific wireless cellular system

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votes
2answers
189 views

How are different phone/GSM operators connected with each other?

This might be a noob question, but I am having trouble finding an answer to it. Let’s say I am a new GSM operator. How would I go about connecting my network and my subscribers to the rest of the ...
5
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1answer
213 views

LTE EPC Synchronization between redundant components

I am investigating resiliency in LTE Evolved Packet Core. Each EPC components has information storage as defined for each user in 3GPP TS 23.40 (Ch 5.7). In case of failure this info needs to be ...
3
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1answer
282 views

Cellular interface in VRF (LTE)

We are testing an LTE configuration with a Cisco C1113-8PLTEEA router. We already have a wired internet connection in a specific VRF called DSL. As far as i understand the LTE backup, we do have to ...
3
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2answers
141 views

Can you create an open LTE network?

Being an ex-politician, I've had to discuss "free city-wide Wi-Fi" many times. What I've always been thinking is, why don't we just have free 3G/4G in the city? I've some memories of being at a large ...
3
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1answer
528 views

When LTE to UMTS IRAT handover is made, what changes occurs in MAC layer?

I have not been able to figure out any changes in MAC layer. If there doesn't occur any change then please give the reason
2
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2answers
371 views

How ISP identifies a device on an LTE network?

I have an LTE CPE which has been provided by an ISP. When I tried to put the SIM into another device, it connected to the network but instantly got disconnected from the network. There should be some ...
2
votes
1answer
93 views

Is MIMO equivalent to link aggregation?

Is MIMO the wireless version of link aggregation in wired networks? I'm not asking if MIMO is a similar link aggregation protocol like LACP or PAgP, what I'm asking is if it is the same concept as ...
1
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0answers
17 views

Using PBR or similar for an IP SLA for a C1111-8P-TLELA with a dynamic Cellular WAN IP

I am trying to get 4G Failover working on a Cisco C1111-8P-LTELA router. I have a known working solution that I usually use with IP SLA, and a local PBR route-map that forces traffic out of the ...
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2answers
400 views

What's the role of the AF entity in LTE network?

An AF entity is necessary, for example, to create a dedicated bearer, but I don't understand what it really does, and why is it necessary for this creation?
1
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1answer
111 views

Packet scheduling in LTE/5G core network components

Scheduling algorithms must be used on the radio side of these technologies in order to map radio sources to incoming/outgoing data packets and satisfy quality of service requirements such as latency ...
0
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1answer
36 views

Automatically connect to Cellular Network (LTE)

I am working on implementing a LTE configuration on IOS-XE (ISR1000) devices. Issue we have is, that we have to "genereate" some traffic in order for the cellular interface to initiate a ...
0
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1answer
34 views

How to compare two DSCP ? which one of DSCP 28 and 34 (decimal) has more priority?

How to compare two DSCP ? for example which one of DSCP 28 and 34 (decimal) has more priority ?
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0answers
9 views

Real-world CQI-to-MCS and SNR-to-CQI tables? [closed]

How can I get real-world CQI-to-MCS and SNR-to-CQI tables? I am particularly looking for 5G-NR or LTE-A related tables. Can someone share any references?
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0answers
14 views

LTE NR split throughput among different bands and carrier

Using a mobile device I can measure the throughput in download and upload while connected to an LTE and/or NR mobile cell. If I know the details of the cells to which the device is connected and so I ...
0
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0answers
17 views

What enables the UE to make calls to more than just an emergency number once it's registered to a cellular network?

UE can camp on to the nearby eNB and still be able to receive RSSI signals regardless of whether the SIM is inserted or not but you would only be able to make emergency calls? What really "...
0
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0answers
32 views

Force Packet thru different VRF with route-map

I am working on a LTE backup configuration. I would like to have the cellular connection open constantly and establish a VPN connection even before a failure on the wired internet line occurs. This ...