by Andrew J. Shepherd
Sprint 4G Rollout Updates
Friday, August 10, 2012 - 6:54 PM MDT
Update: The previously dubbed LG Eclipse is being released November 11 as the Optimus G. Additionally, the LTE 1900 EIRP figures that were missing from the original FCC filing were added six weeks later in a Class II Permissive Change application. Max LTE 1900 EIRP is 23.51 dBm -- though with substantial variability (up to 4.5 dB) due to differences in carrier frequency, bandwidth, and modulation (QPSK/16-QAM). Furthermore, CDMA1X/EV-DO 800 max ERP has been increased by approximately 2 dB to 23.17 dBm.
To quote the inimitable Yogi Berra, "It's déjà vu all over again." And here we go again. S4GRU is happy to announce yet another breakdown of an FCC OET (Office of Engineering and Technology) authorization filing for a major device headed to Sprint's upcoming Network Vision enhanced LTE overlay. Since this spring, we have analyzed the FCC authorizations for the HTC EVO 4G LTE, Samsung Galaxy S3, and yet to be released Motorola Photon Q 4G. Today, the expected LG Eclipse 4G hit the FCC database under the model number LG LS970, and here are the RF facets that we have been able to glean:
- CDMA1X + EV-DO band classes 0, 1, 10 (i.e. CDMA1X + EV-DO 850/1900/800)
- LTE band 25 (i.e. LTE 1900; PCS A-G blocks)
- LTE 5 MHz and 10 MHz carrier bandwidths
- 802.11a/b/g/n Wi-Fi; max MCS index 7 (i.e. 20 MHz channel, 400 ns guard interval, single spatial channel)
- SVLTE support, including SVLTE and simultaneous Wi-Fi tether
- SVDO support absent
- Maximum RF ERP/EIRP: 21.86 dBm (CDMA1X/EV-DO 850), 25.33 dBm (CDMA1X/EV-DO 1900), 21.68 dBm (CDMA1X/EV-DO 800)
- NFC antenna integrated into battery cover
- Antenna locations: (see FCC OET diagrams below)
Notably missing from the presumed LG Eclipse's FCC filing are two things: SVDO capability and LTE band 25 EIRP test results.
Rumor has it that the Eclipse will utilize Qualcomm's upcoming and highly anticipated APQ8064 quad core 28 nm "Krait" processor. The quad core difference is noteworthy compared to the dual core MSM8960 chipset that has proven very successful in the EVO LTE and Galaxy S3, et al. But the MSM8960 incorporates a multimode modem, while the APQ8064 is a naked processor. If rumor has it right, then the Eclipse will also have to utilize at least one separate modem chipset. And it would seem that LG has chosen at least one CDMA1X/EV-DO modem that is not capable of voice "Fusion," which would enable SVDO with a second modem. So, like its Viper predecessor, the Eclipse appears to be a multiple chipset design. But unlike the Viper, the Eclipse is absent SVDO.
Furthermore, the FCC OET filing includes requisite CDMA1X + EV-DO 850/1900/800 ERP/EIRP figures but lacks LTE 1900 EIRP figures. So, do not hold your breath for a release date. We will leave it to other sources to speculate/report on the ergonomics and other technical attributes of the upcoming LG device. But we expect that LG and its authorized testing lab will have to file supplemental results before the supposed Eclipse makes its way into the hands of eager Sprint subscribers.