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High-bit-rate digital subscriber line

About: High-bit-rate digital subscriber line is a research topic. Over the lifetime, 516 publications have been published within this topic receiving 8537 citations. The topic is also known as: HDSL & high-bit-rate DSL.


Papers
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Proceedings ArticleDOI
27 Sep 1993
TL;DR: High bit-rate Digital Subscriber Line (HDSL) technology as discussed by the authors enables two-way 1.544 or 2.048 Mb/s transport over most existing copper telephone cables without repeaters, cable conditioning, or binder group segregation.
Abstract: High bit-rate Digital Subscriber Line (HDSL) technology permits two-way 1.544 or 2.048 Mb/s transport over most existing copper telephone cables without repeaters, cable conditioning, or binder group segregation. Approximately 1000 HDSLs are now in service, and the rate of deployment is accelerating. Compared with traditional high speed copper transport systems, HDSL engineering, installation, and maintenance are simpler. Non-intrusive measurement of Signal-to-Noise Ratio (SNR) and digital performance greatly improves the HDSL's utility. HDSL permits rapid and low-cost service turn-up for private line DS1, fractional DSI rate, switched services, and access to PCS base stations. A strong synergy exists between HDSL and the fiber deployments planned for the next several years.

1 citations

Patent
Volker Henz1, Bernhard Krembs1
12 May 2000
TL;DR: In this article, the authors propose a method for converting a three-party telecommunications connection which is switched via the public communications network into a two-party communication connection, where, after the telecommunications switching office (VST B) has received a request from the further subscriber line or the operator's position, a new direct telecommunications connection is set up between the two subscriber lines and the existing sections of the three party telecommunications connection between these two subscribers and the operator position are released.
Abstract: A method for converting a three-party telecommunications connection which is switched via the public communications network into a two-party telecommunications connection wherein, after the telecommunications switching office (VST B), via which a three-party telecommunications connection between two subscriber lines and a further subscriber line or between two subscriber lines and an operator's position is routed, has received a request from the further subscriber line or the operator's position, a new direct telecommunications connection is set up between the two subscriber lines and the existing sections of the three-party telecommunications connection between these two subscriber lines and the further subscriber line or the operator's position are released.

1 citations

Patent
15 May 2001
TL;DR: In this paper, a trunk interface unit between a base station and a controller using a V35 interface in a CDMA communication system is provided to efficiently operate channel resources by embodying a fractional E1 function as a trunk line.
Abstract: PURPOSE: A trunk interface unit between a base station and a base station controller using a V35 interface in a CDMA communication system is provided to efficiently operate channel resources by embodying a fractional E1 as a trunk line between a base station and a base station controller using a V35 interface and executing data communication between the base station and the base station controller using a specific channel of the fractional E1 CONSTITUTION: A V35 interface board(10) is configured in a network access subsystem of a base station and supports a V35 interface A V35 interface board(20) is configured in a network access subsystem of a base station controller and supports the V35 interface An HSM(High Speed Modem) or HDSL(High bit rate Digital Subscriber Line) system(30) has a fractional E1 function and makes data, outputted from the V35 interface boards(10,20), transmitted and received between the base station and the base station controller through a specific channel of the fractional E1 A telephone office device(40) transmits the data transmitted through the specific channel to a PSTN(50) and transmits the data transmitted through the PSTN(50) to the HSM or HDSL system(30) according to the V35 interface

1 citations

01 Jan 1998
TL;DR: In this paper, the authors focus on how achievable rates vary under different operating characteristics, and show how the achievable rates change as transmission moves from echo-cancelled symmetric transport (HDSL), to frequency-division transport (original ADSL), partially-overlapped transport without bandwidth coordination (Echocancelled ADSL) to partially overlapped, frequency-coordinated transmission (hDSL2).
Abstract: Prior work has focused on achievable rates for digital subscriber lines, only to have future technology surpass the “achievable“ bounds. This paper will focus on how achievable rates vary under different operating characteristics. We will show how the achievable rates change as transmission moves from echo-cancelled symmetric transport (HDSL), to frequency-division transport (original ADSL), partially-overlapped transport without bandwidth coordination (Echocancelled ADSL), to partially-overlapped, frequencycoordinated transmission (HDSL2). Limitations of spectral compatibility and crosstalk from existing services will be discussed as they effect fundamental limits and deployable services. The lessons learned will be related to higher rate services in a nextgeneration network employing as I.z>SL.

1 citations

Journal ArticleDOI
TL;DR: An experimental Asymmetric Digital Subscriber Line-based access network is setup to perform the integration test and some results are shown in this paper.

1 citations

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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
20181
20171
20162
20154
20144
20132