3G & 4G Coverage prob?

[sithija.h]

මේ පින්තූර 3 බලපං මචං, මට තියෙන ප්‍රශ්නෙ 4G Coverage එකක ඉඳන් Video Call එකක් ගන්න බැරිද කියන එක? තව දෙයක් 4G Coverage ඉද්දි Voice Call එකක් එන්න හදද්දිම නිකම්ම EDGE වලට මාරු වෙනවා ඒ කියන්නේ 3G Coverage වල වගේ 4G එකේ එකේ Voice Call වැඩ නැද්ද බං, මට පොඩ්ඩක් මේක තේරුම් කරල දීපං,,,

 

[Ayeshlive]

gewal laga rail parak thiyenawa da?

 

[sithija.h]

gewal laga rail parak thiyenawa da?

ඒහ් මොකෝ මචං ඒ?

 

[thilan996]

බම්ප්

 

[sithija.h]

බම්ප්

Tnx for the bump mcn!

 

[knighthansa]

4G walin calls baha

4G signal1n call ganna baha. Call gannanam 2G or #G signal 1 ona. 4G signal 1n msg karannanm puluwn

 

[sithija.h]

4G signal1n call ganna baha. Call gannanam 2G or #G signal 1 ona. 4G signal 1n msg karannanm puluwn

උඹට ෂුවර්ද බං? එතකොට මේක ලොකු අවුලක් වෙනවනේ බං, 4G වලින් ඉන්ටර්නෙට් යද්දි ඒ වැඩේට විතරමයි නේ බං පාවිච්චි කරන්න පුලුවන්, කෝල් එකක් ආපු ගමන්ම EDGE වෙනවා නම් මාර ඇණයක් නේ බං

 

[machan :D]

කෝල් එකක් ආපු ගමන්ම EDGE වෙනවා නම් මාර ඇණයක් නේ බං

call akak apuwahama mage nam 3g wenawa ban edge nam wenne na (dialog4g)

 

[isitha.lk]

4G වල මෙහෙම කතන්දරයක් තියෙනවා .
Voice calls

The LTE standard supports only packet switching with its all-IP network. Voice calls in GSM, UMTS and CDMA2000 are circuit switched, so with the adoption of LTE, carriers will have to re-engineer their voice call network.[26] Three different approaches sprang up:
Voice over LTE (VoLTE) Main article: VoLTE
Circuit-switched fallback (CSFB)In this approach, LTE just provides data services, and when a voice call is to be initiated or received, it will fall back to the circuit-switched domain. When using this solution, operators just need to upgrade the MSC instead of deploying the IMS, and therefore, can provide services quickly. However, the disadvantage is longer call setup delay. Simultaneous voice and LTE (SVLTE)In this approach, the handset works simultaneously in the LTE and circuit switched modes, with the LTE mode providing data services and the circuit switched mode providing the voice service. This is a solution solely based on the handset, which does not have special requirements on the network and does not require the deployment of IMS either. The disadvantage of this solution is that the phone can become expensive with high power consumption. One additional approach which is not initiated by operators is the usage of over-the-top content (OTT) services, using applications like Skype and Google Talk to provide LTE voice service.[27]
Most major backers of LTE preferred and promoted VoLTE from the beginning. The lack of software support in initial LTE devices as well as core network devices however led to a number of carriers promoting VoLGA (Voice over LTE Generic Access) as an interim solution.[28] The idea was to use the same principles as GAN (Generic Access Network, also known as UMA or Unlicensed Mobile Access), which defines the protocols through which a mobile handset can perform voice calls over a customer's private Internet connection, usually over wireless LAN. VoLGA however never gained much support, because VoLTE (IMS) promises much more flexible services, albeit at the cost of having to upgrade the entire voice call infrastructure. VoLTE will also require Single Radio Voice Call Continuity (SRVCC) in order to be able to smoothly perform a handover to a 3G network in case of poor LTE signal quality.[29]
While the industry has seemingly standardized on VoLTE for the future, the demand for voice calls today has led LTE carriers to introduce CSFB as a stopgap measure. When placing or receiving a voice call, LTE handsets will fall back to old 2G or 3G networks for the duration of the call.

 

[SadSandun]

4G signal1n call ganna baha. Call gannanam 2G or #G signal 1 ona. 4G signal 1n msg karannanm puluwn

The technology used in $G voice is VoLTE or voice over LTE. As far as i know Sri Lanka does not have VoLTE capable service providers as at now.

 

[sithija.h]

call akak apuwahama mage nam 3g wenawa ban edge nam wenne na (dialog4g)

ah ela mcn, ethakota unbe 4G Coverage eke indagena Video Call ekak ganna puluwanda bn? eth 3G wenawada auto?

 

[sithija.h]

The technology used in $G voice is VoLTE or voice over LTE. As far as i know Sri Lanka does not have VoLTE capable service providers as at now.

Thanks for reply mcn, You explained in well, Rep ++

 

[sithija.h]

4G වල මෙහෙම කතන්දරයක් තියෙනවා .
Voice calls

The LTE standard supports only packet switching with its all-IP network. Voice calls in GSM, UMTS and CDMA2000 are circuit switched, so with the adoption of LTE, carriers will have to re-engineer their voice call network.[26] Three different approaches sprang up:
Voice over LTE (VoLTE) Main article: VoLTE
Circuit-switched fallback (CSFB)In this approach, LTE just provides data services, and when a voice call is to be initiated or received, it will fall back to the circuit-switched domain. When using this solution, operators just need to upgrade the MSC instead of deploying the IMS, and therefore, can provide services quickly. However, the disadvantage is longer call setup delay. Simultaneous voice and LTE (SVLTE)In this approach, the handset works simultaneously in the LTE and circuit switched modes, with the LTE mode providing data services and the circuit switched mode providing the voice service. This is a solution solely based on the handset, which does not have special requirements on the network and does not require the deployment of IMS either. The disadvantage of this solution is that the phone can become expensive with high power consumption. One additional approach which is not initiated by operators is the usage of over-the-top content (OTT) services, using applications like Skype and Google Talk to provide LTE voice service.[27]
Most major backers of LTE preferred and promoted VoLTE from the beginning. The lack of software support in initial LTE devices as well as core network devices however led to a number of carriers promoting VoLGA (Voice over LTE Generic Access) as an interim solution.[28] The idea was to use the same principles as GAN (Generic Access Network, also known as UMA or Unlicensed Mobile Access), which defines the protocols through which a mobile handset can perform voice calls over a customer's private Internet connection, usually over wireless LAN. VoLGA however never gained much support, because VoLTE (IMS) promises much more flexible services, albeit at the cost of having to upgrade the entire voice call infrastructure. VoLTE will also require Single Radio Voice Call Continuity (SRVCC) in order to be able to smoothly perform a handover to a 3G network in case of poor LTE signal quality.[29]
While the industry has seemingly standardized on VoLTE for the future, the demand for voice calls today has led LTE carriers to introduce CSFB as a stopgap measure. When placing or receiving a voice call, LTE handsets will fall back to old 2G or 3G networks for the duration of the call.

ම්ම් එළ මචං, එතකොට ලංකාවෙ Network වල ප්‍රශ්නයක් මෙතැන තියෙන්නේ, කමෙන්ට් එකට තෑන්ක්ස් මචං,,,

 

[thedigit2s]

මගේ තියෙන්නේ dialog 4ජි රවුටරයක් එකේ තියෙනවනේ TP ලයින් එකක්. දන්න එකෙක් කියපල්ලකෝ එක කොහොමද වැඩ කරන්නේ කියලා. එක 3g සිග්නල් විතරක් තියෙනවා නම් වැඩ කරන්නේ නැ....

 

[sithija.h]

මගේ තියෙන්නේ dialog 4ජි රවුටරයක් එකේ තියෙනවනේ TP ලයින් එකක්. දන්න එකෙක් කියපල්ලකෝ එක කොහොමද වැඩ කරන්නේ කියලා. එක 3g සිග්නල් විතරක් තියෙනවා නම් වැඩ කරන්නේ නැ....

උඹේ 3G තියෙන වෙලාවට වැඩ නැද්ද බං? ෆෝන් එකේ නම් 4G තියෙන වෙලාවට බං වැඩ කරන්නේ නැත්තේ

 

[U-tag]

Mage Galaxy S5 SM-G900F 4G LTE ekek thiyene. Mage 4G network eke thiyedin nam calls ganna puluwan aulak nathuwa. 2G maruwena eke nam check karea na. Eth 4G walin idin aulak nathuwa calls ganna puluwan.

 

[thedigit2s]

උඹේ 3G තියෙන වෙලාවට වැඩ නැද්ද බං? ෆෝන් එකේ නම් 4G තියෙන වෙලාවට බං වැඩ කරන්නේ නැත්තේ

නැ බන්
3ජි විතරක් තියෙනවා නම් සිග්නල් පෙන්වන්නේ නැ බන්.

 

[sithija.h]

Mage Galaxy S5 SM-G900F 4G LTE ekek thiyene. Mage 4G network eke thiyedin nam calls ganna puluwan aulak nathuwa. 2G maruwena eke nam check karea na. Eth 4G walin idin aulak nathuwa calls ganna puluwan.

මොකක්? උඹේ සිම් එක මොකක්ද බං? Mobitel ද?

 

[U-tag]

මොකක්? උඹේ සිම් එක මොකක්ද බං? Mobitel ද?

Ow ban mobitel thama. Eth lagakadi idan internet nam aulak thiyanawa. Mama data on karala thiyene every time. Idle time eken pase chrome app eka time out kiyala error ekek enawa. Un kiyanawa dual mode eken network eke thiyanna epa wcdma only danalu. Ehenam mokatada ban 4G phone gathe. Ane manda mun kiyana ewa.

 

[sithija.h]

Ow ban mobitel thama. Eth lagakadi idan internet nam aulak thiyanawa. Mama data on karala thiyene every time. Idle time eken pase chrome app eka time out kiyala error ekek enawa. Un kiyanawa dual mode eken network eke thiyanna epa wcdma only danalu. Ehenam mokatada ban 4G phone gathe. Ane manda mun kiyana ewa.

මට පේන්නේ තාම ඔය 4G තාක්ෂණය එච්චරටම සාර්ථක නෑ වගේ බං ලංකාවේ, ඒකයි ඔය හැම අවුලක්ම, මගෙත් අර Mobitel 4G වල තමයි බං අවුල තියෙන්නේ, 4G Coverage ඉද්දි Voice Call යන්නේ නෑ බං EDGE වලට මාරු වෙනවා බං, මටත් හිතාගන්න බෑ අවුල මොකක්ද කියලා...