Efficient Integration Ensures Smooth Network Evolution


Efficient Integration Ensures Smooth Network Evolution

精品网 技术专题2

Rapidly growing data services result in a continuously increasing load on the network. How can operators achieve multi-network coordination, improve the network resource utilization, and increase operators' ROI? How can they quickly meet terminal end users' basic voice call requirements by using technologies such as VoLTE, HetNet, MSA, provide high-quality voice service, and improve hotspot network revenue and user experience? Providing users with high-speed, stable and boundless quality network services in any position on the network is a common challenge that all operators face.

Multi-Network Coordination Fully Enhances Network Potential and Investment Revenue

The rapid deployment of the LTE network worldwide satisfies the requirements for network bandwidth created by increase demand of data services. How to achieve multilayer and multi-domain coordination and maximize resource utilization efficiency in the complicated scenario of multi-standard, multi-band, multi-RAT, and multi-base-station? How to achieve the service coordination between the LTE network and the 3G or 2G network, develop LTE users on the basis of 2G or 3G network users? How to achieve the fast evolution and smooth migration to LTE network? These issues are among the top concerns of operators. The increasingly complicated multi-RAT and multi-band stereoscopic network structure requires comprehensive analysis of network data to achieve intelligent resource configuration and planning of networks. This structure also requires the consideration of the differentiated switchover, bearer, and mobility policies to satisfy network coordination requirements in different scenarios. Based on geographical analysis, Huawei puts out multi-network construction planning and intelligent site-addition suggestions. By using HetNet Macro-Micro Coordination, Multi-RAT Coordination, TDD/FDD coordination, and indoor-outdoor coordination, Huawei constructs a coordinated network with highly-efficient resource utilization and enables user services to use proper resources on proper networks, maximizing the latent power of network resources, implementing accurate traffic control and comprehensively improving the revenue of 2G, 3G, 4G or WLAN network services. In the areas where spectrum resources are insufficient and data services are increasing rapidly, some GSM spectrums are being migrated to or dynamically shared with the LTE network through the reframing solution. While ensuring the service quality of the GSM network, spectral efficiency is continuously improved and ultra-broadband, zero-wait and high quality networks will be truly realized.

VoLTE Integration Opens a Window to the Evolution of Mobile Broadband Voice

As the next generation wireless communication technology, LTE is capable of providing download and upload rates of up to 300 Mbit/s and 75 Mbit/s respectively. The LTE latency of less than 5 ms makes it an ideal network for carrying mobile internet services. As the next generation mobile network engine, the low latency, the HD voice and video quality of VoLTE are its greatest strengths. In addition, VoLTE shows significant advantages in terms of low operating expense (OPEX), wireless spectral efficiency, and service quality. The average voice quality MOS value of VoLTE based on HD voice encoding reaches over 4.0 (The MOS value of 3G voice is about 3.5). The video service improves from QCIF (176*144) in 3G to VGA (640*480) in VoLTE. In addition, the call connection delay of VoLTE reduces to one tenth of that of 3G, which greatly optimizes the voice quality.

The fast and efficient network construction and deployment of VoLTE rapidly achieves the smooth evolution of the traditional network and seamless integration of existing services, thereby shortening the go-to-market time for VoLTE, and efficiently utlizing resources protecting investment, and reducing the network construction costs. Currently, the China Telecom-Huawei VoLTE joint project team has finished the commercial-terminal-based end-to-end VoLTE service demonstration in Guangzhou Research Institute of China Telecom, and the service demonstration implements the HD voice call and HD video call of VoLTE for the first time. With a short call connection delay, a clear voice, and a smooth video, this demonstration shows that China Telecom has successfully taken the first step towards 4G voice evolution.

Hetnet Integration Enhances the Hotspot Network Revenue and User Experience

HetNet networking refers to a heterogeneous network formed by planning and designing multi-RAT micro base stations, macro base station, and WLAN multilayer networks. By completing the network deployment through accurate site selection, proper planning, and use of efficient co-channel interference control policy in a specified area, without adding spectrum resources, HetNet networking accurately absorbs traffic; increases network capacity with minimum costs; exponentially improves the network capacity; satisfies multi-user broadband access requirements, ensures terminal user experience at the terminal and boosts operator brand images. At the Holland LTE Global Summit, the HetNet network deployment jointly implemented by Huawei and Norway operator Telenor was rewarded the INNOVATION IN HetNet NETWORK DEPLOYMENT award. The downlink peak traffic rate of the LTE network reached 72 Mbit/s with an average rate of 46 Mbit/s. The test result reached the standard of "excellent" and displayed optimal network performance. With an increasing number of cells, more "cell edges" will appear, which causes more problems such as frequent switchover, increasing switchover failure rate, and decreasing throughput for edge users. These problems all affect user experience. How do we solve these problems caused by mobility, interference and the resource utilization rate? Multiple Stream Aggregation (MSA) can improve throughput 500% through the convergence of multi-RAT, multi-carrier, and multilayer network, which not only greatly increases the throughput, it also solves problems in the existing network such as mobility support, prominent interference problems, and low resource utilization rate. MSA enables users to enjoy highspeed and stable data access services in any position on a network and truly realizes the idea of a limitless network. Regarding features of future network evolution, Huawei, based on consultation assessment, comprehensively leverages its expert resources, practical experience, best practices, workflows, IT tools, and GNEEC lab to find network and investment hotspots. Through accurate planning, Huawei constructs user-experience- oriented quality networks. With efficient coordination between outdoor-indoor, multi-band-multi-RAT, and multi-vendor equipment, Huawei improves ROI. In addition, integration verification and efficient implementation provides for a smooth migration to a quality network, helping operators achieve commercial success.