At the 3Gpp busan meeting, all working groups developing 5G wireless technology will gather at the meeting to finalize the standard technology related to 5G RAN commercialization.
About 1,500 standard experts from chipsets, handset and device providers, mobile operators and others will attend the conference to complete the first phase of 5G. These include 5G wireless access technology that provides ultra-high speed data and ultra-low latency and a method of consistency testing for 5G terminals. To put it simply, after the busan conference, independent networking standards in the first phase of 5G are coming out soon.
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A number of Chinese companies, including huawei, OppO, VIVO and other manufacturers of communication equipment and mobile phones, also attended the meeting to discuss and submit proposals. Yang chaobin, president of huawei’s 5G product line, said the meeting was planned to complete the standard technology related to 5G independent networking (SA), which will be officially announced at the us plenary session next month after the review and approval, and huawei has prepared the proposal. After the standard is determined, the equipment enterprise has the standard based equipment to be commercial.
previously, 3Gpp determined 5G standardization in two stages: the first stage started R15 as 5G standard, which was completed in June 2018; The second phase launched R16 as a 5G standard, which was completed in December 2019. The first phase of 5G will be finalized at the 3Gpp conference in the United States next month.
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Millimeter-wave solutions to 5G problems
It is an inevitable trend to plan millimeter wave around the world. At present, in frequency band below 6GHz, we see the frequency band around 3GHz getting attention all over the world. Many countries around the world are dividing or planning to divide MMW frequency bands above 24GHz. In July 2016, the us divided up the millimeter wave spectrum of up to 11GHz into 5G frequency bands. Other regions including Europe, South Korea, Japan, Australia and Canada are also dividing the millimeter wave spectrum for 5G. In some cases, a portion of the millimeter wave spectrum may be classified as Shared or unlicensed spectrum – rather than authorized spectrum, which may be necessary in certain cases.
“” there is no doubt that the millimeter wave spectrum is critical for 5G both in China and globally. The millimeter wave band provides extreme bandwidth, so it is critical to meet the need for better and faster enhanced mobile broadband, while providing significant differentiation for 5G compared to the gigabit LTE service currently available in China and the rest of the world.” Xu thinks so.
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This importance is evident in the comparative data in a series of tests. In this regard, qualcomm conducted a series of 5G real network simulation experiments. In the experiment in San Francisco, the 5G network simulation experiment was carried out. The current LTE base station was supplemented by millimeter wave capacity, which achieved five times of network capacity gain. Meanwhile, when 4G reached 100% coverage, the millimeter wave added to the existing 4G base station could achieve 65% coverage of 5G network. In another group of experiments in Frankfurt, 4G was converted to 5G on the spectrum below 6GHz. In terms of download rate, the average of 4G users was increased from 56Mbps to over 490Mbps of 5G users, achieving 8.8 times of gain. In terms of the data of cell edge burst, the gain could be up to 9.2 times.
Thanks to the results of the trial, qualcomm has now developed and demonstrated a trial platform that utilizes both frequency ranges of below 6GHz and millimeter wave, and launched a new 5G empty port modem capable of running under 6GHz and millimeter wave frequency.
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For the challenge of millimeter wave, xu also said: “using millimeter wave frequency band transmission is more likely to cause path is blocked and signal attenuation, thus, millimeter wave signal transmission efficiency and robustness is one of our research and development focus, in addition, for how to make the millimeter wave technology to better adapt to the size and power consumption of the terminal is qualcomm technology research direction.” (Nashville)
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