recently, MediaTek and Qualcomm both announced their own Wif7 (82.11be) related technologies, and put forward the prospect of Wif7 (82.11be) application. At the same time, another world-class communication giant announced an overview of Wif7 (82.11be) related technologies in official website, which is right.
Wrong, this communication giant in Shenzhen is Huawei. Official website, the national intellectual property right, shows that Huawei has submitted a patent on "multicast service transmission method and device suitable for multi-links", which is under review.
WIFI 7(82.11be) continues to use the multi-link transmission technology, and the number of streams in WIFI 6(82.11ax) is increased to a maximum of 16 streams. Theoretically, a single-user device can reach a higher rate of 3Gbps, which is 6 times of the highest rate of 9.6Gbps in WIFI 6(82.11ax). In terms of frequency band, WIFI 7(82.11be) will support 6GHz band, and the maximum band bandwidth of a single channel supports 32MHz, which is twice as large as the maximum band bandwidth of WIFI 6 supports 16MHz. WIFI 7(82.11be) will bring higher transmission speed, and at the same time, the power consumption of transceiver equipment will increase greatly.
an implementation method in the patent mentioned that the multicast service indication information is used to indicate whether each AP (wireless node) in the MLD (wireless node multi-link equipment) of the first AP has multicast service. Compared with the way that the station managed by the first AP can only know whether the first AP has multicast service, it avoids that each STA in the MLD (node accessing wireless AP, usually referring to terminal equipment, such as notebook and mobile phone) periodically listens to whether the corresponding AP has multicast service.
to put it simply, in this implementation method, when the wireless station of the multicast service main body broadcasts and receives data to the devices in the local area network through the multi-link technology, a plurality of wireless nodes distributed in the multi-link will automatically know the devices actually accessed, such as generating the multicast service and then receiving and transmitting the data. Then the accessed wireless terminal equipment does not need to actively listen to whether the corresponding AP has multicast service, which reduces the power consumption of the equipment.
in addition, another implementation method mentioned that the transmitting AP can also send the multicast service indication information of each AP in the AP MLD where the non-transmitting AP is located, which is beneficial for the STA MLD to know whether each AP in the AP MLD located in the first link has multicast service, and further reduce the power consumption of the STA MLD.
In translation, the transmitting wireless node can send the indication information of multicast services in multiple links for the non-transmitting AP, and unify the data transmission and reception in one transmission mode, so that the terminal equipment does not need to frequently find out whether each wireless node has multicast services in many links, which can not only improve the data transmission efficiency, but also reduce the power consumption during data transmission.
WIFI 7(82.11be) is a brand-new wireless network standard. if WIFI 6(82.11ax) will greatly improve the process of internet of things, then WIFI 7(82.11be) will speed up this process again. after it is commercialized in the future, video/voice conference, cloud game, smart home, industrial internet of things, meta-universe, etc.
for Huawei, this patent is one of the numerous achievements of WIFI 7(82.11be), which not only makes a forward-looking preparation for the terminal equipment that will be connected in the future to generate high power consumption, but also puts forward an important solution to the formulation of Wif7 standard, improves the reliability, continuity and integrity of Huawei's Wif7 standard protocol, and provides a more adequate normative method basis for the implementation of the overall scheme.
As Huawei is committed to building a super terminal, getting through WIFI 7 is not only for high-tech fields such as the Internet of Things and industrial intelligence, but also for consumers, lower delay and smoother network experience can effectively improve the transmission efficiency of smart home devices connected to the super terminal. Moreover, with the increasing number of smart home devices in the super terminal, users do not need to worry about the phenomenon of network congestion caused by too many devices, which is also conducive to the use and need of devices, the selection of energy, and the effective diversion of data through multi-link transmission technology.
I believe that in the coming first year of commercial use, more and more devices supporting the WIFI 7 standard will come out. Of course, the small partners who have devices with the WIFI 6 standard and below don't need to worry that the arrival of WIFI7 will be eliminated, because WIFI 7 supports backwards compatibility's 2.4GHz and 5GHz, so that smart homes at home can also access the wireless network under the WIFI 7 standard.