Using a mobile phone to turn on a personal hotspot and share the network for an iPad, tablet or laptop is a common use case in life. However, using a mobile phone to turn on a hotspot will increase the power consumption of the mobile phone, increase the heat generation and reduce the battery life, which will affect the use of the mobile phone. In response to this pain point, many manufacturers have launched mobile portable routers.
Inside, the mobile portable router features a simplified chip design that removes the massive application processor and retains the baseband and wireless connectivity for network connectivity and sharing. The following charging head network will bring a summary of the five mobile portable routers that have been disassembled, and see how the internal design is different.
Huawei's 4G WiFi 3 mobile router for mobile Internet. This product is flat and round, about the size of a bank card, and is very easy to carry. Support mobile telecom Unicom 4G network card use, with such a device, you can play with your friends anytime and anywhere.
Huawei's Wifi3 is compact and has rounded corners, making it very portable and easy to use. Through the dismantling of the charging head network, it is learned that the product adopts a replaceable battery design, and the problem of battery aging after long-term use can be easily solved by the user himself. Further dismantling found that a thin-film antenna was used inside to save the volume of the product. In addition, HiSilicon baseband and PMIC are used to cooperate with TI battery management. There is a shield on the motherboard to ensure that the signals do not interfere with each other. Built-in SLC memory, long service time, stable and reliable.
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Huawei 5G Wifi Pro is equipped with an 8000mAh large-capacity battery, which can last up to 10 hours under high load and supports 225W reverse wired charging and 15W reverse wireless charging, and comes with a Huawei 40W super fast charger. The product can convert 5G signals to high-speed WiFi through the Barong 5000 chip, realizing 5G dual-mode full Netcom, and non-5G mobile phones, tablets, laptops and other devices can also enjoy 10 times faster network speed than 4G. Without having to change your phone, this portable mobile router can take you to enjoy the 5G era, and at the same time, it can also be connected as a router to transfer large files with zero traffic.
Through dismantling, the charging head network learned that the machine is equipped with Huawei HiSilicon Hi9500 Barong 5000 5G SoC core chip, and uses Hi6421 Hi6422 Hi6526 PMIC, Hi1151 wireless control chip and Hi6365 RF transceiver. In addition, Hynix and Macronix memory chips, as well as Richtek's wireless charging solutions, are also used.
The chips on the sub-circuit board of the machine are all covered with metal shielding covers to avoid interference, and the main heating chips are also pasted with thermal pads to help conduct heatThe battery cell is placed in a groove, and the groove area is made of aluminum alloy to help the cell dissipate heatThe wireless charging coil is tightly wound and the core is firmly welded. The overall workmanship of this product is excellent.
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As a networking device between the wired network and the mobile phone network, the portable wifi solves the problem of using a mobile phone when going out, and the mobile phone uses a 4G or 5G network to consume fast power and generate a large amount of heat, becoming an important supplement to the wired network.
Through dismantling, the charging head network learned that this portable WiFi has a built-in Zhirong SW6106 mobile power SOC chip, which charges and discharges the built-in battery, and integrates switches and controllers inside the chip, with a high degree of integration and simplified peripheral circuits. The wireless module adopts ZTE's micro solution, and the overall solution has the advantages of low power consumption, high cost performance and high integration. The modular approach greatly simplifies product development and accelerates time to market.
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Xinxun's 4G wireless data terminal has a built-in 8000mAh capacity battery, which ensures good battery life without affecting its overall portability. In addition, it is equipped with a 1A1C interface, compatible with all mainstream 3 fast charging protocols on the market, and supports 18W fast charging, which is convenient for rapid power storage and take-out use.
Through dismantling, the charging head network learned that the MIFI host has a built-in Zhirong SW6206 chip to achieve the basic charging and discharging functions, and the ultra-high integration is conducive to simplifying the circuit and reducing the size of the PCB board, and then compressing the size of the MIFI host, which is very important for such products that pay attention to portable and out-of-the-box. In addition, Zhirong SW6206 can also provide rich interface configurations and fast charging protocols to enrich the functions of the MIFI host. The MIFI module adopts a Qualcomm scheme and has stable communication.
Related reading: 1. Dismantling report: Xinxun 4G wireless data terminal.
ZTE 5G portable WiFi6 Pro Max adopts a phone-like design, and the shell is coated with metallic paint for a delicate texture. The front of the fuselage is equipped with 24-inch touch screen with a resolution of 320*240, which is used for flow display, signal strength, power display and other functions. This portable wifi has a built-in 10000mAh large battery and can last up to 16 hours. It supports 27W fast charging and can be fully charged in 150 minutes. 18W reverse charging, meet the emergency charging of mobile phones.
Through the dismantling of the charging head network, it was learned that the internal design of ZTE 5G portable WiFi is similar to that of a traditional mobile phone, with a battery inside the back cover and a wireless antenna on the edge of the battery. The Qualcomm X62 5G mobile platform chip is used inside, with two SDR735 RF transceivers and power amplifier chips from Qualcomm, Qorvo and Radrock to achieve 5G network connection.
And use Qualcomm WCN6856 WiFi BT chip for WiFi connection, the chip supports WiFi 6 standard, the maximum transmission rate reaches 3600Mbps, and supports 64 user connections. PM7250B with SMB1394 charging chip is used for PD fast charging and charge pump fast charging. According to different functions, the shielding cover is set up in the partition inside the portable WiFi to ensure the stable transmission of the signal without interference.
Related reading: 1. Teardown report: ZTE 5G portable WiFi6 Pro Max
A mobile portable router is essentially a simplified version of a mobile phone, which uses indicators to display the status or use the screen to display simple information for users to understand the operating status and traffic usage information. By using a mobile portable router, you can free up your phone without affecting your phone's battery life, and it will not automatically turn off the hotspot, providing a stable and reliable network connection.
The mobile portable router launched in recent years not only provides network connection, but also has the function of fast charging mobile power supply. It has a built-in large-capacity battery, which not only provides long-lasting network sharing, but also has a fast charging output, which can quickly charge the mobile phone and add product use.