迄今为止最快、最可靠的Wi-Fi背后的技术

The TechnologyBehind the Fastest,Most ReliableWi-Fi Ever What’s inside. 1.Wi-Fi 7 Opens the Connectivity Floodgates32.What’s New with Wi-Fi 743.Throughput and Capacity Advances for Higher Bandwidth54.Latency and QoS Advances to Support New Use Cases85.How Wi-Fi 7 Reduces Latency and Increases Reliability96.The Challenges of Wi-Fi 7 Testing127.OCTOBOX Testing Systems Meet the Challenges of Wi-Fi 7138.Wi-Fi 7: More Testing = More Use Cases15 Wi-Fi 7 Opens the Connectivity Floodgates Wi-Fi is counted on by most American households and available in cafes, fitness centers, planes, parks –just about everywhere and, often, for free. Once spotty service has given way to an increasingly reliableand ubiquitous means to check notifications, stream videos, work remotely, and so much more. The more advanced Wi-Fi becomes, the more use cases it can support.Applications like multiplayer gaming, AR/VR headsets, and 4K videoare now within scope for Wi-Fi, despite requiring substantially morebandwidth and lower latency. The latest advancements found in Wi-Fi7 are poised to unleash a new wave of applications and drive adoptionof innovative new devices. As Wi-Fi proves more capable and the usecases become more ambitious, the margin for error drops and thestakes rise. Wi-Fi 7 promises to support not just demanding consumerservices, but mission-critical enterprise applications as well. To this end, Wi-Fi 7 both faces and poses stiff competition to 5Gand technologies like network slicing. If it is to successfully supportincreasingly ambitious services, it must be reliable out of the gate. Thisis a tall task with the many new testing challenges Wi-Fi 7 introduces. Testing has always played a major role in ensuring each Wi-Figeneration’s readiness. But as it learns even more tricks, becomescapable of new feats, and aims to deepen adoption amongenterprise markets, Wi-Fi 7 presents the most complex testingrequirements to date. This eBook highlights Wi-Fi 7’s technology advances, impacts ontesting, and new strategies for validating performance and reliability. Wi-Fi 7 prioritizes quality of service (QoS)for reduced latency and jitter (i.e., latencyconsistency). It also increases efficiencyand reduces costs by improving performance,load balancing, and reliability. For most applications, the difference betweena throughput of 2 Gbps and 4 Gbps is notnoticeable, so bandwidth increases haveactually become less imperative. What’s New with Wi-Fi 7 Each Wi-Fi generation hasdelivered higher data rates,with recent releases alsotargeting better user experiences.For instance, Wi-Fi 6 introducedmechanisms to better supportmultiple family memberscontending for the sameairwaves from different locationsin the house. In the latest releases, Wi-Fi uplink anddownlink performance are targeted. That’sbecause delays between the device andthe cloud can substantially impact the userexperience. In gaming applications, even theslightest delays beyond~10 milliseconds candisrupt play. Low latency is also essential forAR/VR, as headaches and motion sickness canresult if the transmission to one eye is delayedmore than the other or the screen cannotsync with the user’s physical movements. Inindustrial use cases like manufacturing ormining, safety and precision performance areon the line. KEY TAKEAWAY The standardization of Wi-Fi 7’s newcapabilities began in 2018 and is expected tobe completed and approved by the IEEE in2024. However, chipset vendors and devicemanufacturers are already integrating Wi-Fi7 into products for early market adoption,requiring testing solutions be ready now. Wi-Fi 7 follows this tradition with increasedbandwidth to support performance-sensitiveconsumer and industrial use cases. But that’sjust the beginning. Worldwide 6 GHz adoption Throughput andCapacity Advancesfor Higher Bandwidth To provide throughput up to30 Gbps with increased capacity,Wi-Fi 7 widens bandwidth to320 MHz, and increases QAM(quadrature amplitude modulation)signal density and spectrumefficiency for multiple users. 320 MHz channelsprovide substantial increasein bandwidth 41COUNTRIES,REPRESENTING54% The recently opened 6 GHz band enableschannels as wide as 320 MHz, or four timeslarger than Wi-Fi 6, for quadruple the amountof data transmission. As a result, morecountries are adopting the 6 GHz (6000 MHz)band to unleash higher bandwidth capabilities. Traditionally, unusable sections preventthe rest of the channel from being utilized.Wi-Fi 7 overcomes this constraint withpreamble puncturing that removes the noisy,problematic parts of the spectrum, whilekeeping the rest of the 320 MHz channelavailable. Preamble puncturing improvesspectral efficiency and makes wide channelsavailable even when interference is present.Puncturing is a mandatory requirement forthe 6 GHz band and greatly improves theavailability of wide channels. OF WORLD GDP, HAVENOW AUTHORIZED 6GHZFOR WI-FI USE. The probability of interference is proportionalto channel width making it diffi