What did Qualcomm do on the way to the mobile 5G network?

Tencent Digital (Wang Yang) The so-called 5G refers to the fifth generation of mobile phone communications standards, also known as the fifth generation of mobile communications technology. Since 2013, discussions on 5G mobile technology have gradually surfaced. Among them, mobile chip giant Qualcomm, as a representative of early involvement in R&D, interpreted their R&D progress, standardized models, and industrial chain cooperation in the 5G field.

The development of the mobile network started from 1G in 1980 and entered the 4G era in 2010. Now it is moving towards 5G. Qualcomm first mentioned their vision of transforming the world through smart connection platforms and connecting the Internet of Things.

In Qualcomm, 5G should be a network platform with a unified connectivity architecture. Relying on the future-oriented unified connection platform, different frequency band types and diversified service deployments will be implemented through new technology integration, and the ultimate goal for 5G development will be achieved.

Qualcomm focused on three different application scenarios of 5G networks.

First, 5G enhanced mobile broadband: with greater throughput, low latency, and a more consistent experience.

5G enhanced mobile broadband is mainly reflected in the following areas: 3D ultra high-definition video telepresence, perceivable Internet, ultra-high-definition video streaming, demanding stadium environment, broadband optical fiber users, and virtual reality.

Second, 5G business-critical services: with better reliability, low latency and more universal and easy to use.

Key business-oriented services are mainly used in autopilot, robotics, energy smart grids, industrial automation, aircraft, and medical applications.

Third, 5G massive IoT level: with energy saving, low complexity and remote control.

Massive Internet of Things applications include smart cities, smart homes, utility metering, wearables, remote sensors or drivers, and target tracking.

Qualcomm said that 5G is a unified air interface for the next 10 years, with optimized waveforms, a universally flexible framework, and advanced wireless technologies. In general, the lower the frequency, the better coverage, but the bandwidth capacity is also smaller. As the frequency increases, the bandwidth capacity will also increase in proportion.

Qualcomm's unified 5G design supports all spectrum types and frequency bands, including licensed spectrum, shared licensed spectrum, and unlicensed spectrum.

If divided according to the frequency band, 1GHz corresponds to the massive IoT; 1GHz to 6GHz are for enhanced mobile broadband and key services; and more than 6GHz such as millimeter waves face the extreme mobile bandwidth.

At this stage, Qualcomm’s wireless/OFDM technology and chip technology are relatively advanced. In the future, they can develop 5G technologies. They can also use advanced prototype end-to-end system methods to promote 5G from standardization to commercial use. In addition, Qualcomm can also provide 5G. Required experience and scale advice.

It is reported that in terms of 5G prototype display, Qualcomm has released a total of two platforms this year, namely the high-rate and low-latency prototype system below 6GHz and the 28GHz end-to-end system platform. In theoretical speed tests, 5G is better than the existing 4G. LTE is about 100 times faster.

Initial 4G and 5G dual connectivity model development

Talking about the future development of 5G, Qualcomm believes that the initial development form of 5G is a 4G and 5G dual connectivity model, with 4G as the base layer and 5G as the enhancement layer. In the future, 5G will gradually replace 4G with the development coverage. In addition, multi-connection and multi-mode technologies also play a role in 5G development, such as allowing devices to simultaneously support 5G, 4G and WiFi access seamlessly.

In addition, modem and radio frequency technology will also help the development of 5G. Qualcomm is currently promoting the 5G NR standardization process, and the target is to be released in 2019. Qualcomm will test repeatedly with prototypes and partners.

Qualcomm concluded that the natural development of mobile networks is a cycle of 10 years. Although domestic time from 4G to 5G is relatively short, foreign markets have started to popularize 4G since 2010. Considering that Korea will host the Olympic Winter Games in 2018 and Japan will host the Summer Olympic Games in 2020, these time nodes will also promote the accelerated popularity of 5G networks.

In addition, mobile phone manufacturers and operators will also step up efforts to meet the 5G network. However, due to the increased bandwidth caused by the millimeter-wave technology, the challenges for the device baseband and power consumption will be great, and the number of antennas needs to be increased within the mobile phone, so the cost of mobile phone R&D will further increase. Qualcomm said that in the future it will help these handset manufacturers to complete the product structure design.

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Scroll(a),i(window).resize(a),t.dom.$player_mini_ctrl.on("click","a[data-action=close]",function(i){i.preventDefault(), e=!0,a(),t.player&&t.player.tvp_player_obj&&t.player.tvp_player_obj.pause&&t.player.tvp_player_obj.pause()}),t.dom.$player_mini_ctrl.on("click","a[data -action=resize]",function(i){i.preventDefault(),t.dom.$player_wrap.toggleClass("rv-player-mini-big"),t.player.resizePlayer()});var n =t.dom.$player_mini_ctrl.find("a[data-action=mute]"),o=function(){var i=t.player.getFlashVolume();"number"==typeof i?n.removeClass ("mute-off mute-on").addClass(0===i?"mute-on":"mute-off"):n.hide()};o(),n.click(function() {var i=0===t.player.getFlashVolume();t.player.setFlashVolume(i?80:0,!0)}),t.player.bind("onvolumechange",function(){o( ),t.sign.vol_change_by_prog||(t. player.getFlashVolume()>0?t.fn.miniUnMuteSign.on():t.fn.miniUnMuteSign.off())})}};return{detectVisible:n,init:l}}();i.scrollPlay =a,i.init=function(){var i=t.libs.jQuery;t.dom.$root=i(".rv-js-root"),t.dom.$title=t.dom. $root.find(".rv-title a"),t.dom.$autoplay_sw=t.dom.$root.find(".rv-js-autoplay"),t.dom.$player_wrap=t.dom .$root.find(".rv-player-wrap"),t.dom.$player_mod=t.dom.$player_wrap.find(".rv-player-mod"),t.dom.$player_mini_ctrl=t .dom.$player_wrap.find(".rv-player-mini-ctrl"),t.dom.$playlist_node=t.dom.$root.find(".rv-playlist"),t.dom.$playlist_scol =t.dom.$playlist_node.find(".rv-playlist-scroller"),t.dom.$playlist_list=t.dom.$playlist_node.find("ol.rv-playlist-list"),t.dom .$playlist_ctrl=t.dom.$playlist_node.find(".rv-playlist-ctrl a"),t.dom.$playlist_prev=t.dom.$playlist_ctrl.filter(".prev"),t.dom. $playlist_next=t.dom.$playlist_ctrl.filter(".next");var n=["nba"];window.ARTICLE_INFO&&~i.inArray(window.ARTICLE_INFO.sub_nav,n)&&(t.dom.$ root.addClass("rv-adjust-wide-article"),i(windo w).resize(t.utils.throttle(function(){t.player&&t.player.resizePlayer&&t.player.resizePlayer()},50))),e=!0},t.ui=i}(window. 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",n+=" "+e.stitle+"",n+="
",n+=" ",n+=""}),t.dom.$playlist_list.html(n),t.ui.playlist.init();var a=function(i){if(i){var e,n;return o.each(t.videos,function(t,o){return o.vid===i?(e=o,n=t,!1):void 0}),e&&(e .idx=n),e}},l=function(i){if(!(0>i||i>t.videos.length-1)){var e=t.videos[i];t. player.playByVid(e.vid),t.ui.playlist.setCurrentToIdx(i),t.ui.playlist.scrollToItemIdx(i),t.ui.setTitle(e.title,e.url)}};t. Dom.$playlist_list.on("click","a[data-vid]",function(i){i.preventDefault();var e=o(this).attr("data-vid"),n= a(e);l(n.idx),t.fn.trace.boss2619("user_click",e)}),t.player.bind("ongetnext",function(i){t.utils.debug_log( "event: ongetnext");var n=a(i),o=n.idx+1,r=e();o

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