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    Apple is still using dual card dual standby to improve the price, Huawei uses more powerful dual-card double-pass "division to teach people"

     

    "Recently, a confidential ppt suspected of Huawei mate 20 was exposed on the Internet, suggesting that mate 20 will support dual card dual 4G dual volte, that is, a more advanced dual card dual standby dual card dual pass. As soon as this news came out, many fruit fans wondered. Finally, this year's iPhone finally has a version that supports dual card and dual standby. Therefore, it also set a new high price of Apple's mobile phone. Huawei uses a more powerful dual card and dual pass to "teach people every minute". When it comes to dual card dual standby, I believe most domestic consumers will not be unfamiliar. A mobile phone has two SIM cards installed and standby at the same time. In fact, this function has long been popular in domestic mobile phones, and has evolved n versions. Now, even for hundreds of mobile phones, dual card dual standby is almost standard, whether smart phones or function machines. To trace the history of dual card and dual standby, relevant data show that the domestic brand cool has launched relevant models in 2005, so it is earlier than Apple's first iPhone (2007). It was not until 2018, the 11th year of the iPhone, that Apple ushered in a model that supports dual card and dual standby, which is a frighteningly slow pace. It was not easy to follow up the dual card and dual standby. Apple also gave a foreign name "DSDS" for this function at the new iPhone press conference, that is, dual sim dual standby, which intends to make the fruit powder proud. The mobile phone users grass root grass root, and then the "all right" netizens then ridiculed "cock wire cock wire", mapping out the dual card dual standby grass root phone has been configured in the phone. However, unexpectedly, Apple has also made a difference in the "DSDS" function. Among the three new iPhones, only the national bank version and Macao version of iPhone XS Max and iPhone XR provide physical Dual SIM card and all Netcom in the real sense. If ordinary consumers do not pay attention to buying other versions, the dual card dual standby or all Netcom function will be castrated to varying degrees, Bring unnecessary trouble. Therefore, dual card dual treatment seems simple, but if you really want to go deep into it, it can also lead to many technical topics. According to the description on Apple's official website, the existing dual card dual standby iPhone does not support the use of two CDMA cards at the same time, and the dual card can not support 4G at the same time, and the dual volte function can only be realized through the subsequent OTA software upgrade. In addition, there is a big regret that the dual card does not support dual access, that is, when the AB card works at the same time, when the a card is in a voice call, the B card cannot be connected, If the mobile phone is set with B card to use cellular mobile data, the data connection will also be interrupted during a card call. From the implementation principle, dual card dual pass usually requires two sets of independent RF units in the mobile phone, which will put forward higher requirements for the baseband and antenna design, cost and internal space occupation of the mobile phone. After entering the 4G all Netcom era, many mobile phones have cut off the dual access function due to the cost and design difficulty. The latest exposure that Huawei mate 20 will provide real hammer information of dual card and dual pass is believed to be the result of overcoming many technical problems. With dual card and dual access, several experience pain points encountered by dual card users can be perfectly solved. First, both cards will not miss calls, which is particularly important for business people; Secondly, during the call, the mobile Internet will not be interrupted, and the game team will no longer lag behind in the war. It is not a problem to check data and social chat while chatting on the phone. In recent years, many consumers know Huawei because of the rise of Huawei mobile phones. In fact, Huawei started with communication technology and holds a large number of core technology patents. As early as 2010, it began to be shortlisted as the world 500 enterprises selected by fortune in the United States. Huawei insists on investing more than 10% of its operating revenue in R & D every year. The cumulative investment in recent 10 years has exceeded 394 billion yuan. In 2017, Huawei's R & D investment ranked sixth in the world, first in China, and has surpassed apple. With its strong R & D strength and technical precipitation in the communication field, Huawei's breakthrough in dual card and dual pass based on a more complex network environment is not only a surprise, but also expected. "Steady, I'll see you in London on October 16th!", From the comments of Yu Chengdong, CEO of Huawei's consumer business, on Apple's autumn press conference on his microblog in the early morning of September 13, it is obvious that Huawei is full of confidence in mate 20 series. In terms of performance, Huawei mate 20 has determined that it will be equipped with a Kirin 980 chip with a 7-nm process, and its comprehensive performance should be comparable to that of the apple A12 processor used in the new iPhone; In terms of cameras, the improvement of the new iPhone is relatively limited compared with last year's iPhone X. in the first half of this year, Huawei's P20 series has left behind its friends, and the performance of mate 20 series will only be stronger. Original address: https://www.eeboard.com/news/mate-20-17/ ‎ Search aiban.com and pay more attention. You can master the latest development board, intelligent hardware, open source hardware, activities and other information every day. Recommend attention! [wechat scanning can be followed directly]“

     

     

     

     

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