Patent
The mobile communication system
Михо Маеда,Мицуру Мотизуки,Таига Саегуса,Ясуси Иване,Юдзи Какехи,Масаюки Наказава,Таисей Суемицу +6 more
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TLDR
In this paper, a mobile communication system comprising a plurality of base stations that perform radio communication with user equipment and a radio network controller which controls a pluralityof base stations, wherein: the above radio controller indicates the low frequency resource that is a radio resource for transmitting a reference signal to the aforementioned user equipment for power measuring less frequently than usual against the above base station, the aforementioned base station indicates to a complement to the low-frequency resource specified above radio-network controller, a lowfrequency resource, which is an additional radio resource, for transmitting the aforementioned reference signal, less frequentlyAbstract:
1. A mobile communication system comprising a plurality of base stations that perform radio communication with user equipment and a radio network controller which controls a plurality of base stations, wherein: the above radio network controller indicates the low frequency resource that is a radio resource for transmitting a reference signal to the aforementioned user equipment for power measuring less frequently than usual against the above base station, the aforementioned base station indicates to a complement to the low-frequency resource specified above radio network controller, a low-frequency resource, which is a radio resource for transmitting the aforementioned reference signal to the above UE, less frequently than usual ivysheupomyanutaya base station transmits the aforementioned reference signal to the above UE, less frequently than usual in the low frequency resource indicated above radio network controller, and low-frequency resource further designated stantsiey.2 itself above the base. The mobile communication system according to Claim. 1, in which the above base station notifies an adjacent base station of the low-frequency resource further indicated above base stantsiey.3 itself. The mobile communication system according to Claim. 1, in which the above base station notifies said radio network controller of the low-frequency resource further indicated above base stantsiey.4 itself. mobile communication system according to claim. 3, wherein the radio network controller aforementioned changeread more
Citations
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Journal ArticleDOI
The UMTS base station router
TL;DR: This paper reviews the Alcatel-Lucent Universal Mobile Telecommunications System (UMTS) base station router (BSR)—a radio access network (RAN) and core network (CN) in a single network element which can be considered a wireless edge router that bridges between cellular-specific wireless transmissions and IP networks.
Journal ArticleDOI
Assessment of Network Layouts for CDMA Radio Access
TL;DR: The obtained results of the numerical analysis indicate that a hexagonal "clover-leaf" layout is superior, but the results of system-level simulation give similar performance for the triangular and square layouts, which indicates also the importance of the antenna height optimization for all layouts.
Journal Article
Further Investigation into VHF Radio WavePropagation Loss over Long Forest Channel
TL;DR: In this article, the experimental study on the radio wave propagation loss through long tropical forest environments at very high frequency, VHF (92.1MHz) was conducted and the method of least square was employed to fit the experimental measured data.
Energy Efficient and Compact RF High-Power Amplifiers
TL;DR: In this article, a very low-loss, high-current RF transformer concept was introduced that allows straight forward power scaling in RF amplifiers, and two very compact high-power class-E branch amplifiers were realized and tested.
Proceedings ArticleDOI
GSM Based Remote Ionized Radiation Monitoring System
TL;DR: A remote ionized radiation monitoring system using the global system for mobile communication (GSM) and in case of abnormality (level of radiation becomes greater than the preprogrammed alarm points) alarm messages will be automatically transmitted to the central station.
References
More filters
Journal ArticleDOI
The UMTS base station router
TL;DR: This paper reviews the Alcatel-Lucent Universal Mobile Telecommunications System (UMTS) base station router (BSR)—a radio access network (RAN) and core network (CN) in a single network element which can be considered a wireless edge router that bridges between cellular-specific wireless transmissions and IP networks.
Proceedings ArticleDOI
Flat Cellular (UMTS) Networks
TL;DR: This paper argues for completely flat cellular wireless systems, which need just one type of specialized network element to provide radio access network (RAN) functionality, supplemented by standard IP-based network elements to form a cellular network.
Journal ArticleDOI
Assessment of Network Layouts for CDMA Radio Access
TL;DR: The obtained results of the numerical analysis indicate that a hexagonal "clover-leaf" layout is superior, but the results of system-level simulation give similar performance for the triangular and square layouts, which indicates also the importance of the antenna height optimization for all layouts.
Journal Article
Further Investigation into VHF Radio WavePropagation Loss over Long Forest Channel
TL;DR: In this article, the experimental study on the radio wave propagation loss through long tropical forest environments at very high frequency, VHF (92.1MHz) was conducted and the method of least square was employed to fit the experimental measured data.
Energy Efficient and Compact RF High-Power Amplifiers
TL;DR: In this article, a very low-loss, high-current RF transformer concept was introduced that allows straight forward power scaling in RF amplifiers, and two very compact high-power class-E branch amplifiers were realized and tested.