/ Daily News/Guangzhou, August 04, 2022 -- Many users of dual-card and dual-standby mobile phones have experienced such a feeling: when the secondary card makes calls and texts, the network connection of the main card will fluctuate significantly or even be interrupted. Such a situation for most ordinary users, may be barely acceptable, but for game players and esplayers, the rapidly changing "battlefield" situation can not tolerate the slightest delay, even millisecond delay, may also miss the "super" opportunity, even lost "against the wind" match point.
Recently listed iQOO 10 series products, through a series of technological innovation and breakthrough, took the lead in the industry to realize the "main card 5G playing games, sub-card VoNR HD call, greatly improve the delay stability of double card 5G playing games, Moreover, the user pain points of "frequent interruption of dual-card 5G games" are effectively improved, significantly revitalizing the user game experience.
From DSDS to DSDA: OriginOS's persistent pursuit
Dual SIM dual mobile phone in the past network connection shortcomings, a large part of the reason is the limitations of dual sim DSDS architecture. Its name is "dual-card dual-wait", but it can only achieve "single", that is, although there are two cards, but the two cards use time-sharing multiplexing to use RF resources, which means that only one card is allowed to send and receive data at the same time, so once the secondary card has data exchange, the main card will be disconnected from the network. This is not only reflected in the secondary card calls and SMS messages, but also affects the network connection of the primary card when some secondary card signaling (such as periodic IMS re-registration) occurs.
Later, as technology evolved, there was a compromise: On the basis of LTE(4G) VoLTE call or NR(5G)VoNR call, in order to better guarantee the data Internet experience, the mobile phone can automatically switch the data path to the secondary card temporarily when the secondary card calls, so that the secondary card becomes the data card for a short time. Although this can solve part of the problem, but not the root cause. There will still be a few seconds of Internet disconnection during the switch, which is still not enough to meet the needs of game users for stable Internet access. When the DSDS architecture iterates to DR-DSDS, the two cards finally receive data at the same time, but the secondary card still sends data that affects the primary card.
In this process constrained by the technical level, OriginOS team anticipated the new pain points of future user scenarios in advance, and first proposed the DSDA-Like solution requirements to platform manufacturers, aiming to avoid the impact of secondary cards on the main card delay through the concurrent capability of dual cards, but it failed to be implemented.
Industry release commercial:
After the arrival of 5G era, under the guidance of the "user-oriented" value concept, OriginOS team continues to conduct user research and data collection, fully demonstrate the huge impact of this pain point on users from multiple dimensions, and repeatedly communicate and demonstrate with platform manufacturers. Transfer the importance, feasibility, and urgency of DSDA technology to platform vendors. Finally, with 5G entering the mature application stage, DSDA technology ushered in a new dawn.
It is not an easy thing to complete the landing of DSDA technology. For the OriginOS team, advancing this effort requires not only a commitment to "truly enhance the user experience," but also a concerted effort to collaborate with multiple parties. It involves a number of cross-company collaborations, including deep communication with industry leaders to upgrade the SoC chip architecture. Internally, cross-domain cooperation is needed to upgrade software, radio frequency and antenna design. At the same time, in order to meet commercial standards, it is necessary to fully consider the power consumption, SAR value compliance and other basic issues during concurrent dual-card development. OriginOS also formulated strict dual-card development and testing specifications and procedures, so that all parties of the project have the same information synchronization and recognition on the key indicators of dual-card capability, and jointly ensure the implementation of DSDA.
Innovative DSDA architecture takes the lead in supporting 5G+5G dual-card dual-pass, and realizes such as: data card in the process of call/Internet, non-data card will not miss the call, and data card Internet access without interruption; When the non-data card sends and receives SMS messages and interacts with the network signaling, the data card has a series of functions, such as no delay in surfing the Internet/playing games and so on, which truly achieves the technical goal that the two cards of the dual card and dual mobile phone can send and receive data at the same time on the user's face, and greatly improves the user's experience of surfing the Internet, receiving and making calls, receiving information and playing online games.
< /p>On iQOO 10 series, this is not only the results of its user side thinking transformation, but also a perfect embodiment of the "pursuit of perfection, create surprise" spirit. From 0 to 1, OriginOS will continue to innovate with more innovative product feature designs, lighting up the future with technology.
