Renesas Mobile Technology Corporation (Renesas Mobile CorporaTIon, hereinafter referred to as "Renesas Communications Technology") announced that the company has completed the latest version of VAMOS (Voice Services over AdapTIve MulTI-user Orthogonal Sub-channel), the next direction of GSM technology evolution The world's first pre-commercial test. The test was based on a Beijing test network and used ZTE's network infrastructure equipment. The VAMOS II standard was fully implemented on Renesas Communication Technology's smartphone reference platform RRP11B. Test results show that the available GSM user capacity (including pairing with traditional terminals) has doubled.
VAMOS is a brand-new technology, which aims to greatly increase the user capacity of the operator's existing network by multiplexing up to 4 users in a GSM channel. The core VAMOS II of this test is more advanced than its previous version, which can quickly bring benefits to operators after deployment. As VAMOS II terminals consume less power to maintain the quality of voice calls, the available user capacity of operators will be significantly improved. In addition, since VAMOS II supports more types of mobile phones (such as VAMOS I, VAMOS II or non-VAMOS mobile phones), it can maximize the number of users in each channel.
Heikki Tenhunen, senior vice president of Renesas Communication Technologies, said: "As VAMOS II can bring resources optimization and frequency optimization, VAMOS II can bring tangible benefits to operators and end users, and they can enjoy immediately To these benefits. With the continuous popularization of VAMOS II mobile phones, the benefits brought by user capacity will also increase. "
Pu Yingchun, general manager of ZTE ’s GU products, said: “ZTE has always been committed to technological innovation around customer value. We have released mobile phones that support VAMOS functions and successfully demonstrated VAMOS II today. This will further increase the capacity of operators’ network users. , And can help operators use existing frequency resources more efficiently, so that they can more flexibly respond to network evolution in the future. "
The Renesas Communication Technologies modem team, with its unparalleled rich experience, has continuously introduced industry-leading multimode modems and helped the company stay at the forefront of cellular communication technology development. Over the past 30 years, the team has played a vital role in formulating, implementing, and promoting various cellular technology standards, and has made significant contributions to the development of VAMOS standards. The Renesas Communication Technologies modem team is the first team in 3GPP to propose performance indicators for VAMOS receivers. Currently, all platforms of Renesas Communication Technology fully support VAMOS II.
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