In the evolution of 2G, 3G to 4G, the mobile communication network maintains a 10-year cycle, and the faster video transmission and massive IoT connection needs, as well as the flames of future industries such as virtual reality and driverless technology, will force 5G. Network commercials quickly landed.
Compared with 3G and 4G networks, 5G's smashing Internet of Everything Cake is huge. "One world, the same 5G" means that rule-makers reshuffle, which means that 2G and 3G networks are facing exit, and users are transferring numbers. Technical barriers are further reduced, and these will rewrite the order of the business world.
What changes in 5G bring, and how does 3GPP plan the 5G network standard to advance? What kind of cooperation and competition between Qualcomm and Huawei that were first selected by the data channel standard scheme? The reporter recently interviewed Hou Jilei, senior director of R&D at Qualcomm and head of China R&D Center, who explained the above issues in detail.
What changes does 5G bring?
Hou Jilei believes that 5G is a future-oriented, unified connection platform. Unity can be reflected in three aspects. The first aspect is diversified services, including enhanced mobile broadband, mission-critical services, and massive IoT. The second aspect is that in terms of spectrum, 5G will greatly expand the spectrum range of 2GHz to 3GHz in the 4G era. 30GHz, 40GHz or even 70GHz or 80GHz; the third embodiment is in network deployment. In the 5G era, only macro base stations are not enough to support. In the future, more 5G base stations and small base stations will be deployed flexibly in cities, villages and dense communities. Implemented through a unified architecture.
In terms of speed and time delay, Hou Jilei said that the current 4G network transmission speed can reach 10Mbps or 20Mbps, and the 5G era will be able to reach several gigabits per second. This means that the network rate is increased by several times or even hundreds of times, achieving ten times the throughput of 4G, reducing the end-to-end delay to one tenth of 4G, increasing the connection density by ten times, and transmitting a single bit signal. The efficiency of spectrum occupancy can also be tripled, and data capacity and network efficiency are greatly improved.
"In the 5G era, mobile phones need to support millimeter-wave transmission. In theory, 16 or even 32 antennas need to be implemented. How to integrate the antenna into the mobile phone while miniaturizing the design and structure of the mobile phone, it is necessary to consider the transmission rate. At the Gigabit level, it is definitely a big challenge for mobile phone batteries," Hou Jilei said.
5G promotion schedule
What is the 5G propulsion time rhythm? Hou Jilei said that according to the pace of 3GPP organization promotion, 2016 to 2020 is the complete cycle of the 5G standard landing.
At present, the recognized time point is that in the second half of 2019, operators can deploy commercially. More aggressive operators such as Japan and South Korea believe that commercial deployment of 5G will begin in the second half of 2019. Other operators believe that 2020 is more appropriate, such as China Mobile.
How to locate 4G in the process of 5G evolution? Qualcomm believes that 4G and 5G will develop in parallel, both at the standard and at the level of network deployment.
"Ultra-broadband services will be more hosted by 5G, and relatively mature 4G will support many new vertical markets, such as narrowband Internet of Things, enhanced broadcast services and vehicle networking. In the early stages of the 5G standard and the initial phase of the business model The dual-connected mode is very important. The 5G signaling establishment and back-end core network connection still depend on the 4G core network." Hou Jilei said.
Qualcomm and Huawei's cooperation and challenges
Hou Jilei said that with the 5G landing and 4G maturity, considering the complexity of network maintenance and the control of network migration costs, 2G and 3G networks will gradually withdraw. From the perspective of voice services, 3G will still exist for a long time, and 3G may be replaced after 10 years.
Some insiders have analyzed the reporters that Qualcomm has long dominated the 3G standard and is the main foundation for the long-term “high-pass tax†in the mobile phone market. If the 3G network exits, the basis for Qualcomm to collect patent fees will also be weakened. Qualcomm hopes to gain a more favorable dominant position in the 5G network standard.
In the process of forming the 5G standard, each enterprise wants to play an important role, but no enterprise believes that it is an opponent between each other. Therefore, when the polarization code scheme submitted by Huawei is selected as the control channel, it does not want to be over-interpreted. How does Qualcomm view the relationship with Huawei, and whether there is a balance of interests of “off-site factors†in the process of formulating 5G standards?
"3GPP has long been recognized as a global platform. The important principle of standard selection is technology-driven. When this driver reaches a certain stage and there is a relative superiority and inferiority between technology and technology, everyone will form a consensus. In the standard, Qualcomm believes that cooperation with all parties is always greater than competition. This is one of the reasons why 3GPP can move from 3G and 4G to 5G. Industry resonance is also a more important goal for everyone.†Hou Jilei Said.
Optical Rotary Sensor,Custom Encoder,Optical Encoder 6Mm Shaft,Handwheel Pulse Generator
Jilin Lander Intelligent Technology Co., Ltd , https://www.jilinlandertech.com