IT168 Review Since last year, chip manufacturers led by Qualcomm have begun to advocate an all-Network strategy. Since the patent fees for all Netcom mobile phones were high at that time and the internal signal design was difficult, not many manufacturers responded. Today, a year later, the products of major mobile phone manufacturers are becoming less and less differentiated. Manufacturers also have an urgent need for new marketing points. In addition, the advent of the 4G era and the reshuffling of the three major operators have led to consumers' lack of attention to all mobile phone products. The demand for Netcom mobile phones has exploded, and more and more flagship mobile phones have begun to adopt the full Netcom network standard. The Honor 7 released at the end of last month claims to have dual-SIM, dual-standby, dual-4G and dual-pass online at the same time. So many "duals" seem to mean that the full-network communication of Honor 7 is somewhat different. But what is the reality? Let's experience Honor today. One of the biggest highlights on 7 is full Netcom.
What exactly is Netcom?
As the name suggests, Netcom is supported by all networks. Currently, there are roughly 7 network modes in the world including GSM, CDMA, CDMA1Xamp; EVDP, WCDMA, TD-SCDMA, TDD-LTE, FDD-LTE, and roughly 20 network frequency bands. Corresponds to the 4G/3G/2G networks of the three major domestic operators of China Mobile, China Unicom and China Telecom. Since almost all operators adopt a single-mode multi-band operation method, basically any mobile phone with 7 modes and 15 frequencies can be counted as a full Netcom service. Representative models of all-Network mobile phones currently on the market include: iPhone6/6 Plus, Moto X/X Pro, Nubia Z9, Xiaomi Note All-Network Edition, Honor 7 All-Network Edition, etc.
Common misunderstandings about dual-SIM dual-standby all-Netcom mobile phones
Myth 1: SIM cards can be mixed and inserted in dual-SIM dual-standby all-Netcom mobile phones? At present, most dual-SIM dual-standby mobile phones Full Netcom mobile phones are basically divided into primary and secondary cards. The main card supports full Netcom, while the secondary card only supports GSM (China Mobile and China Unicom 2G network). That is to say, most of the current dual-SIM dual-standby full Netcom mobile phone secondary cards cannot recognize telecommunications cards. Many users ask: Why can't dual-SIM dual-standby full-Netcom mobile phones insert two telecommunications cards? Can't use the combination of China Mobile/China Unicom 4G and China Telecom 2G call services at the same time? This is one of the reasons. Of course, Honor 7 solves this problem to a certain extent.
Misunderstanding 2: Since a dual-SIM dual-standby all-Netcom mobile phone uses two cards, it should be able to use the traffic of both cards to surf the Internet at the same time? In fact, this is not the case. At present, most all-Netcom dual-standby phones use two cards. SIM card dual-standby mobile phones adopt the form of single channel for Internet data services. That is, when one card occupies the Internet channel, the other card cannot perform Internet services at the same time. This problem has also been improved on Honor 7.
Myth 3: Since dual-SIM dual-standby full Netcom mobile phones use two cards, is it possible to use one card to make calls and use another card to access the Internet at the same time? The answer is still no. Since the baseband signal processing chips installed on most existing Netcom mobile phones are mutually exclusive for calls and Internet access, and the current operator network does not fully support 4G call services, what seems to be a matter of course cannot be realized. The same problem has also been improved on Honor 7.
What is the difference between Honor 7’s dual-SIM dual-standby full Netcom and all-Netcom mobile phones on the market?
We also mentioned earlier that consumers currently have concerns about full-Netcom dual-SIM dual-standby mobile phones. misunderstanding. Compared with the current dual-SIM dual-standby full-Netcom mobile phones, Honor 7 can support: 1. The main card (for Internet calls) is a China Mobile/Unicom card, and the secondary card (for calls) is a China Telecom card. 2. Use dual SIM cards to download online at the same time. 3. Use another card to surf the Internet while making a call. In the video, we also show you the first and third points. How does Honor 7 solve the above three problems?
Through disassembly, we found that in addition to the baseband signal processing module built into Kirin 935, Honor 7 is also equipped with VIA Telecom’s telecom 3G /2G network external baseband signal processing chip. It is also equipped with FCI FC7712A telecom 3G/2G network RF radio frequency chip.
In other words, all telecom 3G and 2G services do not need to occupy the baseband chip built into the Kirin 935. When Telecom is the main card, the main card uses the 4G network of Kirin 935 and the 2G network of the VIA Telecom chip, while the secondary card uses the 2G network of Kirin 935. This can solve the problem of non-interference between calls and Internet access. At the same time, it can also solve the problem of dual SIM cards surfing the Internet at the same time.
How is dual-network downloading possible at the same time on Honor 7? How is the experience?
First of all, Honor 7 does not support dual-SIM and dual 4G Internet access at the same time, but only supports mobile phones. SIM card (China Mobile 4G or China Mobile 3G) Telecom secondary card (Telecom 3G), or China Unicom main card (China Unicom 4G or China Unicom 3G) Telecom secondary card (Telecom 3G) dual network simultaneous Internet access mode. The reason we also talked about earlier is that dual baseband chips can solve the problem of dual-SIM Internet access at the same time. The specific implementation method is also shown to you in our video. In terms of experience, currently dual-network Internet access only supports automatic opening when downloading files above 20M, and does not support simultaneous Internet access during web browsing, for example. The function is limited to download acceleration, which seems a bit single.
In fact, this function only maximizes the hardware potential of the full Netcom version of Honor 7. For users, if global network acceleration such as web browsing can be achieved, the experience will be better.
In general, the Honor 7 full Netcom version solves the functions that most dual-SIM full Netcom phones currently on the market cannot achieve. For example, dual-card downloads at the same time, dual-card calls and Internet access at the same time, and the ability to use telecom cards as secondary cards are seemingly natural issues. This is also due to the fact that Honor 7 is equipped with two baseband modules. What must not be mentioned is that Kirin chip has not yet reached a cross-patent authorization with Qualcomm in terms of CDMA network support, which makes Honor have to use dual baseband to achieve full Netcom, which indirectly makes Honor 7 the current full Netcom dual-SIM dual-standby mobile phone. The best mobile phone experience. Of course, we have to say that with the laying of the operator's Volte network and other chip manufacturers' single-chip, full-network, dual-pass strategies, Honor still needs to continue to work hard if it wants to maintain its current leading edge in the network.