LTE to 3G Circuit Switched Fallback (CSFB) Call Flow A 4G LTE subscriber initiates a voice call in an LTE network that does not support VoLTE. In such cases, the UE falls back to 3G networks to establish a voice call. LTE 5G-NR Non-standalone access ...
在后一种情况下,UE通过传统RAT规范中定义的流程在传统RAT上发起CS呼叫。有关CSFB的更多详细信息,请参阅23.272。 SRVCC 如果LTE没有无处不在的覆盖,则UE可能离开LTE覆盖,进入只提供CS语音业务的legacy RAT小区。SRVCC (Single Radio Voice Call Continuity)流程是将基于LTE的PS VoIP呼叫切换到传统RAT的CS语音呼叫,包...
End-to-end signalling and traffic flow VoIP and IMS Protocols Voice Support in LTE CS-Fallback VoLTE SR-VCC (Single Radio Voice Call Continuity) LTE Handover (events and related parameter) X2-based handover S1-based handover Inter-RAT handover with GSM (2G) ...
LTE CS Fallback (CSFB) Call Flow Procedure Prashant Panigrahi November 3, 2016 6 LTE is an all-IP network with no CS support. To support voice communication operators have many options. Voice Over LTE Voice Over WiFi CS Fallback Let’s check briefly about the above options for voice comm...
并行回落小区邻区优化和回落频点干扰优化5TunetoGSMCells无6ReadGSMSisUE缓读SI13BSC开启BCCHT展功能7GSMConnectionSetup核查TA-LA映射,减少LAU流程将指配下发模式从CA+MA方式改为FrequencyList方式8NormallCSCall开启ECSg能关闭3GClassmark功能避免A口IMEIIdentify流程MSC向手机发送鉴权请求消息中不携带AUTN信兀针对CSFB...
29 A strong LTE evolution path 2014 2015 2016 2017+ FDD and TDD support Rel-8 CSFB, VoLTE, LTE Broadcast Rel-9 LTE Carrier Aggregation, relays, HetNets (eICIC/IC), Adv MIMO Rel-10 Realizes full benefits of Multiflow (Dual connectivity), Enhanced receivers, Small cell enhancements, Het...
CSFB is a technology devised to allow Voice and SMS services to travel over LTE (packet-based all-IP) networks, which cannot normally handle circuit switched services. So, when a LTE device is used to place a voice call or send SMS, the device "falls back" to the 3G or 2G network ...
mt-Access:一般是被叫UE收到寻呼后触发Service Request/Extended Service Request/Control Plane Service Request,其中SR携带“PS”指示,ESR携带“packet services via S1”或者"mobile terminating CS fallback”,CPSR携带 "mobile terminating request",这些主要针对类似数据业务寻呼响应,CSFB寻呼响应,NB/eMTC控制面传输数...
The biggest benefit will be less spectrum utilization, better throughput, and energy consumption. At the same time, D2D will enable pear-to-pear location-based applications and services. As a theory LTE Direct can be (more ..)LTE CS Fallback (CSFB) Call Flow Procedure Prashant Panigrahi ...
10.3.1 CSFB Optimization 402 10.3.1.1 Main Issues of CSFB 402 10.3.1.2 CSFB Optimization Method 403 10.3.2 CSFB Main KPI 407 10.3.3 Fallback RAT Frequency Configuration Optimization 409 10.3.4 Call Setup Time Latency Optimization 411 10.3.4.1 ESR to Redirection Optimization 416 10.3.4.2 Twice ...