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Broadcast Services and QoS Control Provided by 3rd-generation Mobile Communication Technology "1xEV-DO" |
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February 2006 |
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AUTHORS |
| Naohisa Hamaguchi |
Mobile Development Project, Hitachi Communication Technologies, Ltd. |
| Takashi Kagei |
Software Dept., Carrier Network Systems, Hitachi Communication Technologies, Ltd. |
| Shiro Mazawa |
Mobile Development Project, Hitachi Communication Technologies, Ltd. |
| Yosuke Takahashi |
CDMA Development Dept., Hitachi Communication Technologies, Ltd. |
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OVERVIEW |
The technical standards for attaining "BCMCS (broadcast and multicast services)" with accompanying guaranteed QoS levels on a 1xEV-DO 3rd-generation mobile communication system—providing wireless data transmission at a maximum rate of 2.4 Mbit/s—have been stipulated by the 3GPP2 standardization body. By adding this standardization to our already developed 1xEV-DO system, Hitachi has implemented BCMCS and QoS functions with its mobile telephony services. A trial 1xEV-DO system with these functions has been delivered to KDDI CORPORATION and tested under an experimental environment. With these additions of BCMCS and QoS functions, along with providing unicast transmission, this 1xEV-DO system is expected to provide services such as simultaneous data transmission and broadcasting as well as IP-videophone.
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TO READ THIS ARTICLE |
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RELEVANT SITES |
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KEYWORDS |
1xEV-DO, BCMCS, QoS, RAN
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