QCI in LTE
QCI in LTE 1 to 4 are GBR QCI,
5-9 are Non-GBR QCI
Quality of Service (QoS) has become an important part of network planning & design when deploying 4G/LTE xed broadband wireless for data & voice services. There are subscribers who use LTE services for critical operations (e.g. voice calls, bank transactions, hospital operations), and there are subscribers who just want to enjoy premium Internet & applications experiences. LTE was designed to meet these increased data and application demands with reliable connections and low cost of deployment. A best case scenario would feature a highly- exible QoS framework that is built to withstand future challenges. Advanced LTE QOS de nes priorities for certain customers or services during congestion. In LTE Broadband Network QoS is implemented between CPE and PDN Gateway and is applied to a set of bearers. 'Bearer' is basically a virtual concept and is a set of network con guration to provide special treatment to set of tra c e.g. VoIP packets are prioritized by network compared to web browser tra c. In LTE, QoS is applied on Radio bearer, S1 bearer and S5/S8 bearer, collectively called as EPS bearer as shown in gure below
Understanding Default & Dedicated Bearer
To best implement the concept of Qos in a LTE network, we must understand the bearer types and properties associated
with each bearer. Two types of Bearer exist - Dedicated bearer and Default bearer. Default bearer is established when a
CPE is initially attached to LTE network while dedicated bearer is always established when there is need to provide QoS
to speci c service (like VoIP, video etc).
Default Bearer in LTE
depend on the service subscribed and remain connected until service is changed or terminated. For many carriers
day. Each default bearer comes with an IP address. Each LTE broadband subscriber can have additional default bearers as
well. Each default bearer will have a separate IP address. QCI 5 to 9 (Non- GBR) can be assigned to default bearer.
Dedicated Bearer in LTE Dedicated bearers are the secondary bearers that are created on top of the existing default bearer. Dedicated bearer shares the IP address previously established by the default bearer therefore dedicated bearer does not require to occupy additional IP address.
QCI in LTE 1 to 4 are GBR QCI,
5-9 are Non-GBR QCI
Quality of Service (QoS) has become an important part of network planning & design when deploying 4G/LTE xed broadband wireless for data & voice services. There are subscribers who use LTE services for critical operations (e.g. voice calls, bank transactions, hospital operations), and there are subscribers who just want to enjoy premium Internet & applications experiences. LTE was designed to meet these increased data and application demands with reliable connections and low cost of deployment. A best case scenario would feature a highly- exible QoS framework that is built to withstand future challenges. Advanced LTE QOS de nes priorities for certain customers or services during congestion. In LTE Broadband Network QoS is implemented between CPE and PDN Gateway and is applied to a set of bearers. 'Bearer' is basically a virtual concept and is a set of network con guration to provide special treatment to set of tra c e.g. VoIP packets are prioritized by network compared to web browser tra c. In LTE, QoS is applied on Radio bearer, S1 bearer and S5/S8 bearer, collectively called as EPS bearer as shown in gure below
Dedicated Bearer in LTE Dedicated bearers are the secondary bearers that are created on top of the existing default bearer. Dedicated bearer shares the IP address previously established by the default bearer therefore dedicated bearer does not require to occupy additional IP address.
thnks
ReplyDeleteClients of M2M SIM and IoT Sim applications alike point to diminishing impromptu downtime, and both sorts of arrangements offer the potential to progress benefit administration. IoT gives the capacity to survey these issues from a framework level as well as at the gadget or machine level and to apply analytics and prepare enormous information to change out incremental benefits.
ReplyDelete