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A Physical Cell Identifier Allocation Scheme Utilizing Received Signal Strength in SON-based LTE Systems  

Lee, Ga-Hee (서강대학교 통신시스템 연구실)
Shin, Bong-Jhin (서강대학교 통신시스템 연구실)
Hong, Dae-Hyoung (서강대학교 통신시스템 연구실)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.34, no.12A, 2009 , pp. 962-970 More about this Journal
Abstract
This paper proposes a self-organizing scheme which collects the information of neighboring cells, and then assigns a Physical Cell Identifier (PCI) for a newly deployed cell in LTE systems. The number of PCIs are limited, so the reuse of PCIs in different cells is unavoidable. In a dense urban environment where many small cells such as Pico/Femto cells are deployed under macro cells, it is expected that the number of PCIs becomes more limited. Therefore, the limited number of PCIs needs to be allocated very efficiently. We propose a PCI allocation scheme for a newly deployed cell that can autonomously select a PCI to increase PCI reuse efficiency by utilizing the levels of received signal strength from neighboring cells. To evaluate the performance of the proposed scheme, simulations have been developed and performed with two scenarios on the coverage types of newly deployed cells. When the proposed scheme is applied, the simulation results show that the number of PCIs required for the operation of the system can be saved so that PCIs can be efficiently reused.
Keywords
Physical Cell Identifier; SON; LTE;
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1 3GPP TR 36.902 v1.0.1, 'E-UTRAN; Self-Configuration and Self-Optimizing Network Use cases and Solutions,' Sept. 2008
2 3GPP TR 36.814 v1.0.0, 'Further Advancements for E-UTRA Physical Layer Aspects,' Feb. 2009
3 TSG-RAN WG1, 'LS reply on CSG cell identification,' 3GPP TSG-RAN1 meeting #53bis, Tdoc. R1-082762, June 2008
4 3GPP TR 25.814 v7.1.0, 'Physical Layer Aspects for Evolved Universal Terrestrial Radio Access (UTRA),' Oct. 2006
5 Nokia Siemens Networks, 'Automatic Physical Cell ID Assignment,' 3GPP TSG-SA5 meeting #60, Tdoc. S5-081171, July 2008
6 M. Amirijoo, P. Frenger et al., 'Neighbor Cell Relation List and Measured Cell Identity Management in LTE,' Network Operation & Management Symposium 2008, pp. 152-159, April 2008
7 ZTE, 'New Solution for CSG-cell Identification,' 3GPP TSG-RAN2 meeting #63, Tdoc. R2-084001, Aug. 2008
8 Nokia Siemens Networks, 'Solution(s) to the 36.902's automated configuration of Physical Cell Identity Use Case,' 3GPP TSG-RAN3 meeting #59bis, Tdoc. R3-080812, April 2008
9 3GPP TS 36.331 v8.3.0, 'Evolved Universal Terrestrial Radio Access (E-UTRA); Radio Resource Control (RRC); Protocol specification,' Sept. 2008
10 Y. H. Jung, Y. H. Lee, 'Scrambling Code Planning for 3GPP W-CDMA Systems,' VTC 2001-Spring, May 2001
11 Nokia Siemens Networks, 'Automated Configuration of Physical Cell Identity,' 3GPP TSG-RAN3 meeting #61, Tdoc. R3-082185, August 2008
12 Qualcomm Europe and T-Mobile, 'Automatic Physical Cell Identity Selection in LTE: Requirements and Solutions,' 3GPP TSG-RAN3 meeting #60, Tdoc. R3-081090, May 2008
13 3GPP TS 36.300 v8.9.0, 'E-UTRA and E-UTRAN; overall description; Stage2,' June 2009
14 Qualcomm Europe, 'Extending the PCI space,' 3GPP TSG-RAN1 meeting #53bis, Tdoc. R1-082540, June 2008
15 Qualcomm Europe, 'Framework for Distributed PCI Selection,' 3GPP TSG-RAN3 meeting #61, Tdoc. R3-081820, August 2008
16 Infineon Technologies, 'Extended PCI set for CSG cells,' 3GPP TSG-RAN1 meeting #53bis, Tdoc. R1-082708, June 2008
17 3GPP TS 36.211 v8.4.0, 'Evolved Universal Terrestrial Radio Access (E-UTRA); Physical Channels and Modulation,' Sept. 2008