Mobility enhancements for LTE-advanced multilayer networks with inter-site carrier aggregation

Pedersen, Klaus I.; Michaelsen, Per Henrik; Rosa, Claudio; Barbera, Simone

doi:10.1109/mcom.2013.6515048

Cited by 61 publications

(45 citation statements)

References 9 publications

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“…UE autonomous cell management is an operational mode where the small cell management is partly left for the terminals [4]. In this partially UE-controlled mobility scheme, the devices have the autonomy of deciding the target cell and when to perform the mobility event, preventing the network from taking frequent small cell management decisions.…”

Section: Ue Autonomous Cell Managementmentioning

confidence: 99%

“…Additionally, the network can block the access to a cell that has been previously prepared by reconfiguring the UE and deleting that cell from its list. Figure 2 shows the signaling charts of each SeNB event with UE atonomous operations [4]. As can be seen, the signaling has been reduced compared to traditional DC cell management and, messages like the sequence number (SN) status transfer, are assumed to be encapsulated in the SeNB Addition Response.…”

Section: Ue Autonomous Cell Managementmentioning

confidence: 99%

“…Previous studies on mobility performance show that scenarios with DC are affected by high rates of mobility (or cell management) events [3], [4]; therefore, challenging the mobility management, specially in scenarios with users traveling at high-speeds. The mobility management in current cellular networks relies on a network-controlled mechanism, assisted by the user equipment (UE), in which the network decides when mobility events should take place based on radio resource management (RRM) measurements reported by the UE.…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, we study the performance of UE autonomous cell management; a partially UE-controlled mobility mechanism that prevents the network from performing frequent cell management decisions, and reduces the amount of signaling required for DC operations [4]- [6]. In this mode, the UE is not required to forward measurements reports at each small cell mobility event.…”

Section: Introductionmentioning

confidence: 99%

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UE autonomous cell management in a high-speed scenario with dual connectivity

Gimenez

Michaelsen²,

Pedersen

2016

2016 IEEE 27th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC)

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Abstract-This study compares the amount of control signaling required by traditional network-controlled mobility management with the one required by user equipment autonomous cell management operations in a real-life highway scenario. The scenario is covered by macros and densely-deployed small cells. Different strategies for preparing the small cells for autonomous operations are studied. Our results show that traditional dual connectivity requires an average of 4.9 messages, per user per second, to be exchanged between the user equipment and the network, and 11.6 messages between e-NodeBs. On the other hand, autonomous cell management operations considerably decrease the amount of signaling. The highest reductions can be achieved by preparing all cells along the highway, cutting the signaling overhead by 92 % over the air, and 39 % between e-NodeBs. Furthermore, the approach of applying a newly developed window-based feature for preparing the cells brings significant benefits.

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Section: Ue Autonomous Cell Managementmentioning

confidence: 99%

Section: Ue Autonomous Cell Managementmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

UE autonomous cell management in a high-speed scenario with dual connectivity

Gimenez

Michaelsen²,

Pedersen

2016

2016 IEEE 27th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC)

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“…Furthermore, since small cells and carrier aggregation ability are the features to be supported by upcoming cellular system [12], radio characterization for a wide frequency range will aid in the design and deployment of these wireless networks. With respect to IAN, figuring out PL for various frequency bands can assist in setting up ad hoc network with similar flexibility, which is to select the best available channels to operate at, since interference in one or more channels may occur due to unprecedented events at emergency sites [13].…”

Section: Introductionmentioning

confidence: 99%

Modelling the Impact of Operating Frequencies on Path Loss and Shadowing Along Multi-Floor Stairwell for 0.7 GHZ-2.5 GHZ Range

Aziz¹,

Rahman²

2014

PIER M

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Abstract-Given that building occupants and more importantly public safety personnel regularly use stairwell to move about different floors in a multi-floor building, wireless network coverage for the setting may come as necessary in order to ensure seamless telecommunication connectivity. Nevertheless, wireless network planning pertaining to multi-floor stairwell scenario requires unique radio characterization since the scenario is different from other indoor environments. This paper presents a frequency dependent path loss and shadowing model for the multi-floor stairwell environment that was developed and tested at six dog-leg style stairwells. The empirical model covers frequency spectrum from 0.7 GHz up to 2.5 GHz which envelop numerous public safety and long term evolution operating bands. The model demonstrates good precision and is shown to outperform standard path loss model when comparison was made since it includes site-specific parameters describing radio characteristics natural to stairwell setting. The straightforward mathematical expression of the model can easily be applied when setting up or studying wireless network for the stipulated frequency range with respect to multi-floor stairwell.

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