Patent
Method of locating a mobile station in a mobile telephone system having indoor and outdoor base stations
TLDR
In this article, a mobile switching center switches from the base station to a connection with the sub-section, while the mobile station continues to listen to the identification frequencies and reports the signal strength on its connection.Abstract:
A mobile telephone system has in a cell a base station and sub-stations which are connected to a mobile switching center. The mobile telephone system has control channels and frequencies which are time divided to traffic channels. Some of the frequencies are selected as identification frequencies. Each of the sub-stations is assigned a unique set of frequencies from among the identification frequencies and constantly transmit their respective frequency set. A mobile station connected to the base station listens to the identification frequencies and reports the strongest of these frequencies to the mobile switching center. The mobile switching center compares the reported frequencies with the unique set of frequencies, compares the reported signal strength with a threshold value and selects the nearest sub-station for handoff. The mobile switching center switches from the base station to a connection with the sub-section. The mobile station continues to listen to the identification frequencies and reports the signal strength on its connection. When the strength of the signals from the selected sub-station is low, the connection is switched back to the base station.read more
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Patent
Apparatus and method for extending the coverage area of a licensed wireless communication system using an unlicensed wireless communication system
Michael D. Gallagher,Jahangir Mohammed,Joseph G. Baranowski,Jianxiong Shi,Milan Markovic,Thomas G. Elam,Kenneth M. Kolderup,Madhu C. Shekhar,Mark Powell +8 more
TL;DR: In this article, an unlicensed wireless service (UWS) is adapted to generate the interface protocols of a licensed wireless service to provide transparent transition of communication sessions between a LWS and an UWS.
Patent
Method and system for determining the location of an unlicensed mobile access subscriber
TL;DR: In this article, a method and system for locating an unlicensed mobile access (UMA) subscriber was proposed, which enables a user of a mobile station comprising a hand-set or the like that supports voice and data access via both licensed and unlicensed radio spectrums to be located.
Patent
Registration messaging in an unlicensed mobile access telecommunications system
TL;DR: In this article, URR (UMA radio resource) registration messages are exchanged between an MS and a UMA network controller (UNC) operating in the UMAN to register the MS.
Patent
Generic access to the IU interface
TL;DR: In this article, a register request message from the UE to the GANC that indicates a GAN mode capability of A/Gb only for the UE is sent, and the UE registers the UE with the GAN based on a set of GANC mode selection rules.
Patent
Apparatus for Supporting the Handover of a Telecommunication Session between a Licensed Wireless System and an Unlicensed Wireless System
TL;DR: In this article, a wireless communication handset consisting of licensed wireless communication signal processing circuitry and unlicensed wireless communication signals processing circuitry is described. But the authors do not specify the type of signal processing.
References
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Patent
Mobile assisted handoff
TL;DR: In this paper, a method for communication and handoff in a cellular mobile radio system and a base station and a mobile station for communication, in which time slot identifier codes are transmitted in bursts in times slots in frames of radio channels used for time division communication channels was proposed.
Patent
Cellular radiotelephone system structured for flexible use of different cell sizes
TL;DR: In this article, the use of plural cell sizes in cellular high capacity mobile telecommunications systems is facilitated by providing dual service availability in an essentially geographically continuous large cell grid and an overlaid and essentially geographically discontinuous small cell grid.
Patent
Mobile telephony system intended for indoor and outdoor subscriber use
TL;DR: In this paper, a mobile telephony system includes an internal part-system, which is installed in a building and an external part system, which includes internal base stations which are connected to a mobile switching center, to which external base stations are also connected.
Patent
Portable radio telephone system
TL;DR: In this paper, it was shown that it is possible to communicate between a portable radio telephone set through an existing public cellular radio telephone system and a private radio system by disposing of an antenna and a transceiver for connecting the antenna to the private radio telephone systems.
Patent
Variable bandwidth CDMA radio system
TL;DR: In this article, a method of identifying a proximal base site of a number of base sites by a communication unit in a CDMA communication system having a limited number of communication resources is proposed.