Comparison of MME Signaling Loads for Long-Term-Evolution Architectures

Widjaja, Indra; Bösch, Peter; Roche, Humberto La

doi:10.1109/vetecf.2009.5378833

Cited by 34 publications

(54 citation statements)

References 2 publications

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“…The network now does not know the location of that Idle-state UE. Therefore, the network (MME, mobile controller) first has to perform the paging procedures to inform the new traffic toward the UE and then when UE initiates the UE-triggered service request procedure upon reception of paging indication as described in [1] and [19]. Figure 6 shows the call flow to establish a data forwarding path for the UE and its source when a new session or downlink traffic toward the UE originates from the Internet.…”

Section: Network-triggered Service Requestmentioning

confidence: 99%

“…Then, the eNB performs a paging procedure to find the proper UE and activate it. The MC can send the paging message either as a unicast or as a multicast message, as described in [19]. When the paging request is received, the UE triggers a service request procedure.…”

Section: Network-triggered Service Requestmentioning

confidence: 99%

“…For the three tested architectures, we refer to the signalling analysis model described in [19][20][21][22][23] in order to analyze the signalling load that is generated by the five common procedures. We assume that each UE is a smart phone that supports K application types, including email, web, voice, etc.…”

Section: Signaling Load Analysismentioning

confidence: 99%

“…As said before, we referred the evaluation method from [19] to calculate signalling load for procedures in OEPC architecture. In order to calculate the signalling load for each procedure, we need to draw the call flows that show the message exchanging between entities in each procedure.…”

Section: Traditional Lte/epc Architecturementioning

confidence: 99%

“…In order to calculate the signalling load for each procedure, we need to draw the call flows that show the message exchanging between entities in each procedure. In the traditional LTE/EPC architecture, these call flows were specified in 3GPP technical specification (TS 23.401 [1]) and partially presented in [19]. In [19], the authors analyzed four procedures for the traditional LTE/EPC architecture including UE-originated session (or UE-triggered service request), UE-terminated session (or network-triggered service request), handover with X2 support, and tracking area update (TAU).…”

Section: Traditional Lte/epc Architecturementioning

confidence: 99%

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Proposal and evaluation of SDN‐based mobile packet core networks

Nguyen

Kim

2015

J Wireless Com Network

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Recently, several researchers have proposed adopting software-defined networking (SDN) concepts for mobile network architectures, particularly for LTE-evolved packet core (LTE/EPC). Although several new designs have been introduced for architectures based on SDN or its concrete realization, Openflow, few studies have presented in-depth discussions of real procedures that are relevant to such architectures. To this end, this paper first surveys the current approaches and solutions for adopting SDN/Openflow in LTE/EPC architectures and then introduces a new Openflow-enabled EPC (OEPC) architecture. This work provides detailed analyses of five procedures that commonly occur in LTE/EPC architectures, and the analyses are further elaborated with the separation of the control and data planes and the support of extended Openflow protocol. The analysis shows that the data management of these procedures is simpler relative to traditional LTE/EPC. In addition, in order to prove that efficient data management takes place for these procedures relative to a traditional LTE/EPC architecture, the numbers of signalling messages that are processed by control entities (i.e., the MME and the controller) are taken into account as a metric to evaluate the OEPC architecture. Moreover, the results of a numerical evaluation also show the benefits of this proposal relative to another Openflow-based LTE/EPC architecture.

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Section: Network-triggered Service Requestmentioning

confidence: 99%

Section: Network-triggered Service Requestmentioning

confidence: 99%