From the running posture on the field, to the flywheel rotating inside the engine, to the particles moving through the cable, human pursuit of speed has never stopped. This is especially true in the communications industry. In the past 10 years, the speed of mobile phones has been 'KB/s' evolved to 'MB/s', and our habits changed from mobile phone WAP to mobile phone to watch live broadcast. Now the Gigabit rate of 4G network is not popular, but the faster 5G network is already on the road.
On June 15, the 3GPP Plenary approved the fifth-generation mobile communication technology standard (5G NR) independent networking function freeze, and the non-independent networking NR standard completed in December last year, marking that 5G has completed the first phase of full-featured standardization. Work, and the industry has almost reached a consensus, we will usher in 5G commercial business as soon as 2019.
Then the question is coming, how fast is the 5G network speed?
In fact, this question is not difficult to answer. The existing experiments have given us the answer. According to Qualcomm's network simulation experiment in San Francisco, the average downlink rate of the 5G network reached 1.4Gbps, which is close to the average rate of 71Mbps of the 4G network. 20 times the gain, and the mean delay is also reduced from 115 milliseconds to 4.9 milliseconds, and the response speed is nearly 23 times.
It can be seen that compared to 4G, 5G is very fast, but how does the 'fast' mapping on the data bring about changes in our lives? The author helps you to interpret from three levels, namely high rate, large capacity and low time. Yan.
High rate: Compared with the initial peak rate of 100Mbps achieved by 4G networks, the theoretical value of 5G will reach 5Gbps or even 10Gbps, which will be 50-100 times that of 4G networks. This rate can almost ignore the difference between 'local' and 'cloud'. Ensuring the experience of mobile office, instant meeting and other scenarios. More importantly, the high speed of 5G can fully meet the high-resolution media transmission requirements such as 4K, VR, etc., making the more immersive VR live broadcast possible. The round-trip delay of the next 5G communication is extremely low, completely eliminating the stun feeling caused by the delay in the VR use, thereby truly improving the VR experience of the mobile terminal.
High capacity: Due to the introduction of high-spectrum resources and the support of massive MIMO technology, the capacity of 5G networks will increase by tens of times compared to now, which means that base stations can serve more terminals at the same time. Even if tens of thousands of people concentrate on communication, 5G can satisfy everyone's demand for high-speed network, and there will be no signal but no network.
Low latency: 5G networks have delays as low as 1 millisecond, and lower latency means more timely response. This feature is significant for scenarios such as driverless, emergency handling, etc. In the case of driverless, the current solution relies on The sensor technology realizes that the vehicle is passively operated according to the environment, and some accidents are inevitable. When the 5G technology is used, the most timely communication between the vehicle and the vehicle can be carried out according to the extremely low delay, thereby actively planning the driving route, according to The most timely handling of emergencies is more intelligent and safe.
5G fast experience, Qualcomm technology first
Nowadays, the 5G standard is gradually improving, and the fast experience is coming. This is naturally inseparable from the support of technology. As a mobile communication leader, Qualcomm is the first to participate in the 5G basic research invention and 3GPP standard formulation, with strong technical accumulation and continuous promotion. The evolution of 5G.
▲ Qualcomm successfully demonstrated the 28GHz millimeter wave prototype system
As early as 2016, Qualcomm has demonstrated the 28GHz millimeter wave prototype system and the 5G NR prototype below 6GHz, and based on this, achieved the world's first 5G data connection of 28GHz (millimeter wave) in 2017. As we all know, millimeter wave It has congenital deficiencies, is attenuated in the air, is susceptible to the weather environment, and has a weak diffractive ability. It is difficult to cover a wide range. Qualcomm introduces intelligent beam search and beam tracking algorithms to achieve millimeter wave mobilization. Even in non-line-of-sight environments, stable and reliable connections can be established. The significance of the actual deployment of 5G millimeter waves is self-evident.
In addition, Qualcomm is actively engaged in interoperability and OTA testing with major global carriers and network infrastructure vendors such as AT&T, Vodafone, China Mobile. In 2017, China Mobile and ZTE completed the world's first end-to-end 3GPP R15-based standard. 5G new air interface system interoperability, has made an important milestone in 5G commercial.
Implemented in the product, 5G has begun to take shape
Having said that, you may still think that 5G is a technology that exists in the laboratory, but in fact 5G has already taken shape in our products. In October 2016, Qualcomm launched the world's first 5G modem - Xiaolong X50 5G Modem, 5Gbps download speed. At present, Qualcomm's commercial X16 LTE modem and X20 LTE modem have 1Gbps and 1.2Gbps Gigabit speed respectively. The two are integrated in the two flagship SoCs of Xiaolong 835 and Xiaolong 845. Become the key to the transition to 5G.
▲ Xiaolong X50 5G modem
Based on the Xiaolong X50 5G modem, Qualcomm released the first 5G smartphone reference design in October last year. The RF front end, antenna and modem of the 5G mobile phone have ample maturity, paving the way for 5G on the terminal side.
At the beginning of this year, Qualcomm and domestic mobile phone manufacturers actively launched the 5G pilot program, providing a complete system-level modem-to-antenna RF front-end platform solution portfolio to help domestic manufacturers design leading terminals that meet Gigabit LTE and 5G networks. In the 5G era, one step ahead. Without any surprise, the first 5G mobile phone will be unveiled in 2019, and it comes from Chinese mobile phone manufacturers.
There is no doubt that Qualcomm has the most core 5G technology, its 骁 芯 core, LTE modem is widely used in mobile terminals, and tight deployment with operators, so that technology can be commercialized in a short period of time, these are Qualcomm can lead the development of 5G The core advantages will also help 5G come soon.