The effects of interference between the TDD and FDD mode in UMTS at the boundary of 1920 MHz

Harald Haas; Steve McLaughlin; Gordon J R Povey

doi:10.1109/ISSSTA.2000.876481

The effects of interference between the TDD and FDD mode in UMTS at the boundary of 1920 MHz

Harald Haas, Steve McLaughlin, Gordon J R Povey

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

10 Citations (Scopus)

Abstract

The Universal Mobile Telecommunications System (UMTS) is composed of an FDD and TDD mode. The spectrum allocation is in such a way that both modes have an adjacent carrier at 1920 MHz. The implications thereof with respect to system capacity are investigated in this paper, In this context the separation distance of the TDD and FDD base station (BS) and frame synchronisation are varied. IL is shown that the most detrimental effects for the FDD interface are for small BS separations. In contrast, the optimum with respect to TDD capacity is found for the co-location of both base stations. This yields a trade-off for the optimal BS locations. Moreover, an adjacent channel protection factor of 30 dB in an interference limited system such as CDMA is shown to be too low unless a significant capacity loss is acceptable.

Original language	English
Title of host publication	IEEE Sixth International Symposium on Spread Spectrum Techniques and Applications, 2000
Publisher	IEEE
Pages	486-490
Number of pages	5
Volume	2
ISBN (Print)	0-7803-6560-7
DOIs	https://doi.org/10.1109/ISSSTA.2000.876481
Publication status	Published - 2000
Event	IEEE 6th International Symposium on Spread Spectrum Techniques and Applications - Parsippany, NJ Duration: 6 Sept 2000 → 8 Sept 2000

Conference

Conference	IEEE 6th International Symposium on Spread Spectrum Techniques and Applications
City	Parsippany, NJ
Period	6/09/00 → 8/09/00

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10.1109/ISSSTA.2000.876481

Cite this

@inproceedings{1814c72586504ece9163ab256b559d3b,

title = "The effects of interference between the TDD and FDD mode in UMTS at the boundary of 1920 MHz",

abstract = "The Universal Mobile Telecommunications System (UMTS) is composed of an FDD and TDD mode. The spectrum allocation is in such a way that both modes have an adjacent carrier at 1920 MHz. The implications thereof with respect to system capacity are investigated in this paper, In this context the separation distance of the TDD and FDD base station (BS) and frame synchronisation are varied. IL is shown that the most detrimental effects for the FDD interface are for small BS separations. In contrast, the optimum with respect to TDD capacity is found for the co-location of both base stations. This yields a trade-off for the optimal BS locations. Moreover, an adjacent channel protection factor of 30 dB in an interference limited system such as CDMA is shown to be too low unless a significant capacity loss is acceptable.",

author = "Harald Haas and Steve McLaughlin and Povey, {Gordon J R}",

note = "INSPEC Accession Number: 6838617; IEEE 6th International Symposium on Spread Spectrum Techniques and Applications ; Conference date: 06-09-2000 Through 08-09-2000",

year = "2000",

doi = "10.1109/ISSSTA.2000.876481",

language = "English",

isbn = "0-7803-6560-7",

volume = "2",

pages = "486--490",

booktitle = "IEEE Sixth International Symposium on Spread Spectrum Techniques and Applications, 2000",

publisher = "IEEE",

address = "United States",

}

Haas, H, McLaughlin, S & Povey, GJR 2000, The effects of interference between the TDD and FDD mode in UMTS at the boundary of 1920 MHz. in IEEE Sixth International Symposium on Spread Spectrum Techniques and Applications, 2000. vol. 2, IEEE, pp. 486-490, IEEE 6th International Symposium on Spread Spectrum Techniques and Applications, Parsippany, NJ, 6/09/00. https://doi.org/10.1109/ISSSTA.2000.876481

TY - GEN

T1 - The effects of interference between the TDD and FDD mode in UMTS at the boundary of 1920 MHz

AU - Haas, Harald

AU - McLaughlin, Steve

AU - Povey, Gordon J R

N1 - INSPEC Accession Number: 6838617

PY - 2000

Y1 - 2000

N2 - The Universal Mobile Telecommunications System (UMTS) is composed of an FDD and TDD mode. The spectrum allocation is in such a way that both modes have an adjacent carrier at 1920 MHz. The implications thereof with respect to system capacity are investigated in this paper, In this context the separation distance of the TDD and FDD base station (BS) and frame synchronisation are varied. IL is shown that the most detrimental effects for the FDD interface are for small BS separations. In contrast, the optimum with respect to TDD capacity is found for the co-location of both base stations. This yields a trade-off for the optimal BS locations. Moreover, an adjacent channel protection factor of 30 dB in an interference limited system such as CDMA is shown to be too low unless a significant capacity loss is acceptable.

AB - The Universal Mobile Telecommunications System (UMTS) is composed of an FDD and TDD mode. The spectrum allocation is in such a way that both modes have an adjacent carrier at 1920 MHz. The implications thereof with respect to system capacity are investigated in this paper, In this context the separation distance of the TDD and FDD base station (BS) and frame synchronisation are varied. IL is shown that the most detrimental effects for the FDD interface are for small BS separations. In contrast, the optimum with respect to TDD capacity is found for the co-location of both base stations. This yields a trade-off for the optimal BS locations. Moreover, an adjacent channel protection factor of 30 dB in an interference limited system such as CDMA is shown to be too low unless a significant capacity loss is acceptable.

U2 - 10.1109/ISSSTA.2000.876481

DO - 10.1109/ISSSTA.2000.876481

M3 - Conference contribution

SN - 0-7803-6560-7

VL - 2

SP - 486

EP - 490

BT - IEEE Sixth International Symposium on Spread Spectrum Techniques and Applications, 2000

PB - IEEE

T2 - IEEE 6th International Symposium on Spread Spectrum Techniques and Applications

Y2 - 6 September 2000 through 8 September 2000

ER -

The effects of interference between the TDD and FDD mode in UMTS at the boundary of 1920 MHz

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