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To date, various connection rerouting methods for connection-oriented mobile networks have been proposed. The previous methods, however, are limited to specific topologies or environments. In this paper, we propose the connection-information-based rerouting widely applicable to various connection-oriented mobile networks. This method requires neither a specific topology nor a complex connection, enables fast rerouting, provides appropriate route optimality, and can be extended easily.

The stability of tearing modes for current profiles satisfying the principle of profile consistency found by Coppi is investigated using a simple cylindrical model and compared with tokamak data. Saturated magnetic islands may occur, leading to flat regions superimposed on the cznonical profile, as recently observed in JET. However, depending on the values of the safety factor and internal inductance, the m/n = 2/1 and 3/2 modes may become simultaneously unstable,. giving rise to the possibility of disruption triggered by island overlap.

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having only shear horizontal (SH) component has the Abstmct-A Bleustein-Gulyaev-Shimizu (BGS) wave characteristic of complete reflection at the free edges of a substrate with a large dielectric constant. A conventional surface acoustic wave (SAW) resonator fllter requires reterdigital transducers (IDTs). I t is considered that smallflectors with many electrode fingers on both sides of insized low-loss resonator fllters without electrode reflectors can be realized by utilizing this edge reflection in resonator fllter. We attempt to realize small-sired lowplace of the electrode reflectors in the conventional SAW and SH waves. As a result, in spite of a wirebonded loss resonator fllters by using this characteristic of BGS type of packages, resonator fllters with very small sizes ( 3 . 8 x 3 . 8 x 1 . 5 mm and 4.5X5.2x1.75 mm) and a low inserspectrum (SS) codeless telephone system, the global systion loss in the 52-190 MHz are realized for the spread tem for mobile communication (GSM) system, the wide band code division multiple access system (CDMA) ( R x ) system, and the narrow band CDMA (Tx) system. I. I N T R O D U C T I O N 4 Bleustein-Gulyaxv-Shimizu (BGS) wave propagating on a piezoelectric ceramic substrate polarized parallel to its surface has only shear horizontal (SH) displacement. The BGS wave shows complete reflection at the free edge of a ceramic substrate with a large dielectric constant. A conventional surface acoustic wave (SAW) resonator requires reflectors with many elertrode wave at t,he free edges instead of using electrode refingers, while, by utilizing the reflection of the BGS flectors, a very small resonator without electrode reflectors is realized [l]. [Z]. [3], [4]. We have developed and commercialized miniature BGS-wav? resonators us-BGS resonators in the 30-60 MHz have been widely ing free-edge reflection for the first time 121, (31, [4]. used as additional traps in the video intermediate frequency (VIF) circuit of TV/VCRs and as resonators €or the voltage-controlled oscillat,ors (VCO) in digital video movie recorders because of a small size, no-frequency tuning and a suitabl? bandwidth 121. j3j. In this study. we att.ernpted t,o apply the edge reflert,ion of a BGS or an SH Waves to resonator filters. Until now: ally resonat,or filters utilizing edge reflections have never heen 0-7803-5722-1/99/$10.00 0 1999 IEEE reported by anyone except ns. A s a result, we have realized small-sized low-loss resonator filters wit,hout reflector electrodes by utilizing the edge reflections of BGS and SH waves. Figs.1 (a) and (b) show a schematic diagram and the principle of the resonator using edge reflections of a BGS wave, respectively. The edge-reflection BGS-wave resedge fingers of X /S width and inner ones of X/4 width onator has a normal interdigital transducer (IDT) with as shown in Fig.l(a) (X is the SALV wavelengt,h). ThP distance L between the two edges must be NxX (N is the number of finger-pairs in the IDT). Curved and straight, lines show a frequency spectrum of the resonator with N finger-p...