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Science and Technology Law

University of Pennsylvania Carey Law School

Telecommunications

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5g And Net Neutrality, Christopher S. Yoo, Jesse Lambert Jan 2019

5g And Net Neutrality, Christopher S. Yoo, Jesse Lambert

All Faculty Scholarship

Industry observers have raised the possibility that European network neutrality regulations may obstruct the deployment of 5G. To assess those claims, this Chapter describes the key technologies likely to be incorporated into 5G, including millimeter wave band radios, massive multiple input/multiple output (MIMO), ultra-densification, multiple radio access technologies (multi-RAT), and support for device-to-device (D2D) and machine-to-machine (M2M) connectivity. It then reviews the business models likely to be associated with 5G, including network management through biasing and blanking, an emphasis on business-to-business (B2B) communications, and network function virtualization/network slicing. It then lays out the network neutrality regulations created by the EU …


Cloud Computing, Contractibility, And Network Architecture, Christopher S. Yoo Apr 2015

Cloud Computing, Contractibility, And Network Architecture, Christopher S. Yoo

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The emergence of the cloud is heightening the demands on the network in terms of bandwidth, ubiquity, reliability, latency, and route control. Unfortunately, the current architecture was not designed to offer full support for all of these services or to permit money to flow through it. Instead of modifying or adding specific services, the architecture could redesigned to make Internet services contractible by making the relevant information associated with these services both observable and verifiable. Indeed, several on-going research programs are exploring such strategies, including the NSF’s NEBULA, eXpressive Internet Architecture (XIA), ChoiceNet, and the IEEE’s Intercloud projects.


The Wires Go To War: The U.S. Experiment With Government Ownership Of The Telephone System During World War I, Michael A. Janson, Christopher S. Yoo Apr 2013

The Wires Go To War: The U.S. Experiment With Government Ownership Of The Telephone System During World War I, Michael A. Janson, Christopher S. Yoo

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One of the most distinctive characteristics of the U.S. telephone system is that it has always been privately owned, in stark contrast to the pattern of government ownership followed by virtually every other nation. What is not widely known is how close the United States came to falling in line with the rest of the world. For the one-year period following July 31, 1918, the exigencies of World War I led the federal government to take over the U.S. telephone system. A close examination of this episode sheds new light into a number of current policy issues. The history confirms …


The Convergence Of Broadcasting And Telephony: Legal And Regulatory Implications, Christopher S. Yoo Dec 2009

The Convergence Of Broadcasting And Telephony: Legal And Regulatory Implications, Christopher S. Yoo

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This article, written for the inaugural issue of a new journal, analyzes the extent to which the convergence of broadcasting and telephony induced by the digitization of communications technologies is forcing policymakers to rethink their basic approach to regulating these industries. Now that voice and video are becoming available through every transmission technology, policymakers can no longer define the scope of regulatory obligations in terms of the mode of transmission. In addition, jurisdictions that employ separate agencies to regulate broadcasting and telephony must reform their institutional structures to bring both within the ambit of a single regulatory agency. The emergence …


Toward A Unified Theory Of Access To Local Telephone Systems, Daniel F. Spulber, Christopher S. Yoo Dec 2008

Toward A Unified Theory Of Access To Local Telephone Systems, Daniel F. Spulber, Christopher S. Yoo

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One of the most distinctive developments in telecommunications policy over the past few decades has been the increasingly broad array of access requirements regulatory authorities have imposed on local telephone providers. In so doing, policymakers did not fully consider whether the justifications for regulating telecommunications remained valid. They also allowed each access regime to be governed by its own pricing methodology and set access prices in a way that treated each network component as if it existed in isolation. The result was a regulatory regime that was internally inconsistent, vulnerable to regulatory arbitrage, and unable to capture the interactions among …


The Enduring Lessons Of The Breakup Of At&T: A Twenty-Five Year Retrospective, Christopher S. Yoo Dec 2008

The Enduring Lessons Of The Breakup Of At&T: A Twenty-Five Year Retrospective, Christopher S. Yoo

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On April 18-19, 2008, the University of Pennsylvania Law School hosted a landmark conference on “The Enduring Lessons of the Breakup of AT&T: A Twenty-Five Year Retrospective.” This conference was the first major event for Penn’s newly established Center for Technology, Innovation, and Competition, a research institute committed to promoting basic research into foundational frameworks that will shape the way policymakers think about technology-related issues in the future. The breakup of AT&T represents an ideal starting point for reexamining the major themes of telecommunications policy that have emerged over the past quarter century. The conference featured a keynote address by …


Rethinking Broadband Internet Access, Daniel F. Spulber, Christopher S. Yoo Jun 2008

Rethinking Broadband Internet Access, Daniel F. Spulber, Christopher S. Yoo

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The emergence of broadband Internet technologies, such as cable modem and digital subscriber line (DSL) systems, has reopened debates over how the Internet should be regulated. Advocates of network neutrality and open access to cable modem systems have proposed extending the regulatory regime developed to govern conventional telephone and narrowband Internet service to broadband. A critical analysis of the rationales traditionally invoked to justify the regulation of telecommunications networks--such as natural monopoly, network economic effects, vertical exclusion, and the dangers of ruinous competition--reveals that those rationales depend on empirical and theoretical preconditions that do not apply to broadband. In addition, …


Mandating Access To Telecom And The Internet: The Hidden Side Of Trinko, Daniel F. Spulber, Christopher S. Yoo Jan 2007

Mandating Access To Telecom And The Internet: The Hidden Side Of Trinko, Daniel F. Spulber, Christopher S. Yoo

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Antitrust has long played a major role in telecommunications policy, demonstrated most dramatically by the equal access mandate imposed during the breakup of AT&T. In this Article we explore the extent to which antitrust can continue to serve as a source of access mandates following the Supreme Court's 2004 Trinko decision. Although Trinko sharply criticized access remedies and antitrust courts' ability to enforce them, it is not yet clear whether future courts will interpret the opinion as barring all antitrust access claims. Even more importantly, the opinion contains language hinting at possible bases for differentiating among different types of access, …


The Unfulfilled Promise Of Korean Telecommunications Reform, Christopher S. Yoo Jan 2004

The Unfulfilled Promise Of Korean Telecommunications Reform, Christopher S. Yoo

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The deployment of telecommunications services in Korea represents one of the great technological success stories of the developing world. In a remarkably brief period, the penetration of local telephone service, wireless telephony, and broadband technologies has soared to among the highest levels in the world. The history of Korean telecommunications thus provides a useful case study for other developing countries seeking to expand and modernize their telecommunications infrastructures. At first blush, the explosive growth of telecommunications services has appeared to go hand in hand with the liberalization of Korea's telecommunications markets. A review of the history of Korean telecommunications reform …