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Domain: 3gpp.org
Stories and comments across the archive that link to 3gpp.org.
Stories · 2
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New Qualcomm Auto Chipset Advances Vehicle-To-Everything Communications (zdnet.com)
Qualcomm has introduced a new Cellular Vehicle-to-Everything (C-V2X) chipset and reference design that aims to bring automakers one step closer to deploying the communications systems necessary for fully autonomous vehicles. Ford, Audi, the PSA Group and SAIC are all endorsing the new chipset. ZDNet reports: The Qualcomm 9150 C-V2X chipset, expected to be available for commercial sampling in the second half of 2018, is based on specs from the 3rd Generation Partnership Project (3GPP), a collaboration between groups of telecommunications associations. Meanwhile, Qualcomm's C-V2X reference design will feature the 9150 C-V2X chipset, an application processor running the Intelligent Transportation Systems (ITS) V2X stack, as well as a Hardware Security Module (HSM). C-V2X technology encompasses two transmission modes: direct communications and network-based communications. It's key for both safety features and for implementing autonomous driving capabilities.
For instance, its direct communications capabilities improve a vehicle's situational awareness by detecting and exchanging information using low latency transmissions. Relying on the globally harmonized 5.9 GHz ITS band, the 9150 C-V2X chipset can relay information on vehicle-to-vehicle (V2V), vehicle-to-infrastructure (V2I) and vehicle-to-pedestrian (V2P) scenarios without the need for a Subscriber Identity Module (SIM), cellular subscription or network assistance. On top of that, C-V2X network-based communications (designed for 4G and emerging 5G wireless networks) supports telematics, connected infotainment and a growing number of advanced informational safety use cases. -
Android vs. iPhone 4 Signal Strength Bars Comparison
thisisauniqueid writes "In light of the clamor over the iPhone 4 Grip of Death, AnandTech recently reverse-engineered the phone's signal-strength-to-bars mapping. Because Android is open source, we can determine the corresponding mapping for Android in combination with the 3GPP spec referenced in the source, allowing the signal-strength-to-bars mapping for both Android and the iPhone 4 to be plotted on the same axes. This shows that the iPhone 4 consistently reports a higher percentage signal strength (as defined by the fraction of bars lit) than Android GSM devices at the same signal strength."