Field trials show 5G potential
Qualcomm's tests not only confirmed that 5G technology could provide predictions of more than a gigabit but also simulated the realities in Frankfurt and San Francisco, respectively, based on the locations of existing base stations and frequency bands in both cities. Simulation factors include the geographical location, the different needs of users of the network, different levels of LTE and 5G connections, and various mobile devices and their different speeds in order to accurately understand the operation of 5G networks in different situations.
Specifically, QUALCOMM selected two representative cities to conduct independent network simulation experiments. The first experiment simulated an NSA 5G new air interface network in Frankfurt, Germany, and operated on the 3.5 GHz spectrum with a bandwidth of 100 MHz. The bottom layer Gigabit LTE network across the 5 LTE band operation. The second experiment simulated a hypothetical NSA 5G new air interface network in San Francisco, California, operating on a 28GHz millimeter-wave spectrum with a bandwidth of 800MHz, an underlying gigabit LTE network spanning four LTE-licensed bands and multiple licensed auxiliary accesses (LAA) band operation.
Results from the Frankfurt experiment show that at 5G new air interface end-to-end user experience (compared to LTE terminals), browse download speeds have increased from 56Mbps for 4G users to over 490Mbps for 5G users, achieving nearly 900% gain; Nearly 7 times the download delay average from 116 milliseconds to 17 milliseconds; download speed has also been greatly improved, more than 90% of users in the 5G network to achieve the 100Mbps download speed in the case of the use of LTE connection technology Download speed is 8Mbps. The results of the San Francisco experiment is even more surprising, browse download speeds from 71Mbps 4G user average to millimeter-wave coverage of 5G user average 1.4Gbps, to achieve nearly 2000% gain; response speed of nearly 23 times, browse download delay The average value drops from 115 milliseconds to 4.9 milliseconds, with 90% of users downloading speeds up to 186 Mbps from 10 Mbps and up to 442 Mbps in 5G networks. In both simulations, the user'svideoQuality has been significantly improved, 5G users can see 8K, 120 FPS, 10-bit color video stream.
Although Qualcomm provides only simulation results, the field test data is still shocking. Even though the 5G network has a long way to go, the network capacity simulation results further prove the great potential of 5G, which will fundamentally Changing the way humans use mobile devices, as Peter Carson, senior director of marketing at Qualcomm, told the Communications Daily: Qualcomm has been pushing the 5G from vision to reality, Communication brings change.
Peter Carson, senior director of marketing, Qualcomm
Expanded LTE Evolution Enhanced 5G Data Connection
Qualcomm believes that for 5G network deployment is a multi-layered operation under the cooperation of 4G. In addition to the formulation and construction of 5G NR sub-6GHz and ultra-high-speed millimeter wave applications, the continued expansion and upgrade of Gigabit LTE are also the most important weight.
To smooth the transition between 4G and 5G, Qualcomm also offered the Snapdragon X24 Modem on the eve of the MWC, the world's first multimode 4G LTE modem to deliver 2Gbps downlink speeds.
Compared with Qualcomm's predecessor, X20, X20 X24 is a huge upgrade. First, the core chip is the first to be adopted by the industry, and the 7nm process of RF chip manufacturing process has also been pushed to 14 nm to reduce the chip area again. Reduce chip cost and power consumption. X24 can achieve 7 carrier aggregation, each carrier aggregation can achieve a maximum of 4 × 4 path, using the free spectrum, all carriers can support a total of 20 transmission data layer, According to 100 Mbps per layer of downlink bandwidth, the X24 can achieve a maximum downlink rate of 2 Gbps.
Former X20, so X24 is considered a high pass through the X50 to an important window, it is reported that Qualcomm Snapdragon X24 modem will be officially shipped in 2019.
In addition, Qualcomm also exhibited its Snapdragon X50 5G modem on the MWC booth as the world's first 5G modem to deliver 5Gbps download speeds. The X50 baseband will extend handset services to bands below 6GHz and millimeter wave (mmWave) while supporting 4G connectivity to ensure the normal use of 4G networks during the transition period.
Qualcomm currently has partnerships with 19 handset makers (ASUS, Fujitsu, HMDGlobal, HTC, Novartis Wireless, LG, OPPO, Sharp, Sony Mobile, vivo, Xiaomi and ZTE) and 18 carriers (AT & T, BT Companies, China Telecom, China Mobile, China Unicom, Deutsche Telekom, Japan Telecom, Verizon and Vodafone, and plans to introduce X50 baseband to handsets worldwide next year.
Based on this modem, Qualcomm implemented the world's first 5G data connection at 28GHz and successfully released the first 5G smartphone reference design, meaning it has ample technology accumulation on 5G terminals, not only for modems but also for radio frequency , Antenna and other important parts.