Huawei, the world's leading provider of information and communication solutions, recently teamed up with China Mobile to successfully complete the world's first field test of Flash CSFB to GSM (RIFB-based CSFB to GSM) in a real LTE-TDD network, marking Huawei's Flash CSFB The solution already has mature commercial conditions.
CSFB (CS Fallback) technology is a solution to provide voice services for LTE users. It reuses the traditional CS network to provide voice services for LTE users. Compared with the CSFB technology based on 3GPP R8, Huawei's Flash CSFB solution significantly reduces the end-to-end call delay and provides a better user experience for LTE users. At the same time, through the transformation of the existing CS network, high-definition voice services can be provided for LTE users using Flash CSFB.
China Mobile has the GSM network with the most users and the widest coverage in the world. The use of Flash CSFB to drop the GSM solution maximizes the protection of China Mobile ’s investment in the GSM era and greatly saves the investment of operators in deploying early voice solutions in LTE At the same time, Flash CSFB also provides a smooth evolution route for China Mobile's future transition to VoLTE.
For China Mobile's LTE high-end users, the Flash CSFB solution provides shorter call delays, seamless and fast LTE network and GSM network switching, so that users are completely unaware of network switching and can enjoy the benefits of LTE network. The high-speed Internet experience does not affect the user's voice call service.
This field test is a milestone in the commercialization of LTE voice technology. It signifies that Huawei's Flash CSFB voice solution is a mature and commercially available voice solution. It also indicates that the Flash CSFB solution is not only applicable to LTE-FDD networks, but also applicable to LTE-TDD networks. This will be the industry's LTE The development of voice commercial technology plays an exemplary role. Huawei provided a complete set of network equipment including GSM / LTE / CS / EPC in this field test. This test also marked that Huawei's LTE voice solution has industry-leading end-to-end network commercial capabilities.
As of Q1 2013, Huawei's CSFB solution has deployed more than 40 test commercial bureaus worldwide, serving operators including Telefonica O2 in Germany, EE in the UK, KPN in the Netherlands, M1 in Singapore and PCCW in Hong Kong.
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