Investigation on Signaling Overhead for Mobility Management with Carrier Aggregation in LTE-Advanced

Kengo YAGYU; Takeshi NAKAMORI; Hiroyuki ISHII; Mikio IWAMURA; Nobuhiko MIKI; Takahiro ASAI; Junichiro HAGIWARA

doi:10.1587/transcom.E94.B.3335

Investigation on Signaling Overhead for Mobility Management with Carrier Aggregation in LTE-Advanced

Kengo YAGYU, Takeshi NAKAMORI, Hiroyuki ISHII, Mikio IWAMURA, Nobuhiko MIKI, Takahiro ASAI, Junichiro HAGIWARA

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In Long-Term Evolution-Advanced (LTE-A), which is currently in the process of standardization in the 3rd generation partnership project (3GPP), carrier aggregation (CA) was introduced as a main feature for bandwidth extension while maintaining backward compatibility with LTE Release 8 (Rel. 8). In the CA mode of operation, since two or more component carriers (CCs), each of which is compatible with LTE Rel. 8, are aggregated, mobility management is needed for CCs such as inter/intra-frequency handover, CC addition, and CC removal to provide sufficient coverage and better overall signal quality. Therefore, the signaling overhead for Radio Resource Control (RRC) reconfiguration for the mobility management of CCs in LTE-A is expected to be larger than that in LTE Rel. 8. In addition, CA allows aggregation of cells with different types of coverage. Therefore, the signaling overhead may be dependent on the coverage of each CC assumed in a CA deployment scenario. Furthermore, especially in a picocell-overlaid scenario, the amount of signaling overhead may be different according to whether the aggregation of CCs between a macrocell and a picocell, i.e., transmission and reception from multiple sites, is allowed or not. Therefore, this paper investigates the CC control overhead with several CC management policies in some CA deployment scenarios, including a scenario with overlaid picocells. Simulation results show that the control overhead is almost the same irrespective of the different management policies, when almost the same coverage is provided for the CCs. In addition, it is shown that the increase in the control overhead is not significant even in a CA deployment scenario with overlaid picocells. We also show that the amount of signaling overhead in a picocell-overlaid scenario with the CA between a macrocell and a picocell is almost twice as that without the CA between a macrocell and a picocell.

Publication: IEICE TRANSACTIONS on Communications Vol.E94-B No.12 pp.3335-3345

Publication Date: 2011/12/01

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Online ISSN: 1745-1345

DOI: 10.1587/transcom.E94.B.3335

Type of Manuscript: Special Section PAPER (Special Section on Cooperative Communications for Cellular Networks)

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Kengo YAGYU, Takeshi NAKAMORI, Hiroyuki ISHII, Mikio IWAMURA, Nobuhiko MIKI, Takahiro ASAI, Junichiro HAGIWARA, "Investigation on Signaling Overhead for Mobility Management with Carrier Aggregation in LTE-Advanced" in IEICE TRANSACTIONS on Communications, vol. E94-B, no. 12, pp. 3335-3345, December 2011, doi: 10.1587/transcom.E94.B.3335.
Abstract: In Long-Term Evolution-Advanced (LTE-A), which is currently in the process of standardization in the 3rd generation partnership project (3GPP), carrier aggregation (CA) was introduced as a main feature for bandwidth extension while maintaining backward compatibility with LTE Release 8 (Rel. 8). In the CA mode of operation, since two or more component carriers (CCs), each of which is compatible with LTE Rel. 8, are aggregated, mobility management is needed for CCs such as inter/intra-frequency handover, CC addition, and CC removal to provide sufficient coverage and better overall signal quality. Therefore, the signaling overhead for Radio Resource Control (RRC) reconfiguration for the mobility management of CCs in LTE-A is expected to be larger than that in LTE Rel. 8. In addition, CA allows aggregation of cells with different types of coverage. Therefore, the signaling overhead may be dependent on the coverage of each CC assumed in a CA deployment scenario. Furthermore, especially in a picocell-overlaid scenario, the amount of signaling overhead may be different according to whether the aggregation of CCs between a macrocell and a picocell, i.e., transmission and reception from multiple sites, is allowed or not. Therefore, this paper investigates the CC control overhead with several CC management policies in some CA deployment scenarios, including a scenario with overlaid picocells. Simulation results show that the control overhead is almost the same irrespective of the different management policies, when almost the same coverage is provided for the CCs. In addition, it is shown that the increase in the control overhead is not significant even in a CA deployment scenario with overlaid picocells. We also show that the amount of signaling overhead in a picocell-overlaid scenario with the CA between a macrocell and a picocell is almost twice as that without the CA between a macrocell and a picocell.
URL: https://globals.ieice.org/en_transactions/communications/10.1587/transcom.E94.B.3335/_p

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@ARTICLE{e94-b_12_3335,
author={Kengo YAGYU, Takeshi NAKAMORI, Hiroyuki ISHII, Mikio IWAMURA, Nobuhiko MIKI, Takahiro ASAI, Junichiro HAGIWARA, },
journal={IEICE TRANSACTIONS on Communications},
title={Investigation on Signaling Overhead for Mobility Management with Carrier Aggregation in LTE-Advanced},
year={2011},
volume={E94-B},
number={12},
pages={3335-3345},
abstract={In Long-Term Evolution-Advanced (LTE-A), which is currently in the process of standardization in the 3rd generation partnership project (3GPP), carrier aggregation (CA) was introduced as a main feature for bandwidth extension while maintaining backward compatibility with LTE Release 8 (Rel. 8). In the CA mode of operation, since two or more component carriers (CCs), each of which is compatible with LTE Rel. 8, are aggregated, mobility management is needed for CCs such as inter/intra-frequency handover, CC addition, and CC removal to provide sufficient coverage and better overall signal quality. Therefore, the signaling overhead for Radio Resource Control (RRC) reconfiguration for the mobility management of CCs in LTE-A is expected to be larger than that in LTE Rel. 8. In addition, CA allows aggregation of cells with different types of coverage. Therefore, the signaling overhead may be dependent on the coverage of each CC assumed in a CA deployment scenario. Furthermore, especially in a picocell-overlaid scenario, the amount of signaling overhead may be different according to whether the aggregation of CCs between a macrocell and a picocell, i.e., transmission and reception from multiple sites, is allowed or not. Therefore, this paper investigates the CC control overhead with several CC management policies in some CA deployment scenarios, including a scenario with overlaid picocells. Simulation results show that the control overhead is almost the same irrespective of the different management policies, when almost the same coverage is provided for the CCs. In addition, it is shown that the increase in the control overhead is not significant even in a CA deployment scenario with overlaid picocells. We also show that the amount of signaling overhead in a picocell-overlaid scenario with the CA between a macrocell and a picocell is almost twice as that without the CA between a macrocell and a picocell.},
keywords={},
doi={10.1587/transcom.E94.B.3335},
ISSN={1745-1345},
month={December},}

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TY - JOUR
TI - Investigation on Signaling Overhead for Mobility Management with Carrier Aggregation in LTE-Advanced
T2 - IEICE TRANSACTIONS on Communications
SP - 3335
EP - 3345
AU - Kengo YAGYU
AU - Takeshi NAKAMORI
AU - Hiroyuki ISHII
AU - Mikio IWAMURA
AU - Nobuhiko MIKI
AU - Takahiro ASAI
AU - Junichiro HAGIWARA
PY - 2011
DO - 10.1587/transcom.E94.B.3335
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E94-B
IS - 12
JA - IEICE TRANSACTIONS on Communications
Y1 - December 2011
AB - In Long-Term Evolution-Advanced (LTE-A), which is currently in the process of standardization in the 3rd generation partnership project (3GPP), carrier aggregation (CA) was introduced as a main feature for bandwidth extension while maintaining backward compatibility with LTE Release 8 (Rel. 8). In the CA mode of operation, since two or more component carriers (CCs), each of which is compatible with LTE Rel. 8, are aggregated, mobility management is needed for CCs such as inter/intra-frequency handover, CC addition, and CC removal to provide sufficient coverage and better overall signal quality. Therefore, the signaling overhead for Radio Resource Control (RRC) reconfiguration for the mobility management of CCs in LTE-A is expected to be larger than that in LTE Rel. 8. In addition, CA allows aggregation of cells with different types of coverage. Therefore, the signaling overhead may be dependent on the coverage of each CC assumed in a CA deployment scenario. Furthermore, especially in a picocell-overlaid scenario, the amount of signaling overhead may be different according to whether the aggregation of CCs between a macrocell and a picocell, i.e., transmission and reception from multiple sites, is allowed or not. Therefore, this paper investigates the CC control overhead with several CC management policies in some CA deployment scenarios, including a scenario with overlaid picocells. Simulation results show that the control overhead is almost the same irrespective of the different management policies, when almost the same coverage is provided for the CCs. In addition, it is shown that the increase in the control overhead is not significant even in a CA deployment scenario with overlaid picocells. We also show that the amount of signaling overhead in a picocell-overlaid scenario with the CA between a macrocell and a picocell is almost twice as that without the CA between a macrocell and a picocell.
ER -