Apparatuses and mobile stations for providing packet data communication in digital TDMA cellular systems

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 5590133
SERIAL NO

08354874

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Apparatuses and mobile stations are described which provide packet data services in TDMA (Time Division Multiple Access) cellular systems, based on providing shared packet data channels optimized for packet data. A first 'integrated' embodiment utilizes the current cellular infrastructure to the extent possible consistent with functional and performance requirements. Shared packet data channels in base stations may be provided dynamically determined by demand. A packet data controller in each Mobile services Switching Center controls access to the packet data services. A packet data router in each MSC routes packets to and from the MSC service area. A backbone network interconnects packet data routers and Interworking Functions providing internetworking with external network(s). A second 'separate' embodiment, in order to minimize the impact on the current cellular system, primarily utilizes the base station portion of the cellular system, relying for the remaining network parts on a separate mobile packet data infrastructure.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)STOCKHOLM12205

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Billstrom, Lars Sonla, SE 5 540
Dahlin, Steinar Jarfalla, SE 17 666
Persson, Bengt Djursholm, SE 36 1991
Wetterborg, Lars Jarfalla, SE 1 332

Cited Art Landscape

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Patent Citation Ranking

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ALCATEL (3)
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8874672 Identifying and using identities deemed to be known to a user 4 2012
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9614791 Adding a contact to a contact list on a mobile device 0 2012
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9565307 Emergency assistance calling for voice over IP communications systems 2 2013
9137385 Determining a time to permit a communications session to be conducted 5 2013
8774378 Allocating charges for communications services 9 2013
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* Cited By Examiner