How to Spot Sprint 8T8R TD-LTE RRHs (Alcatel-Lucent)
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By PedroDaGr8 · Posted
Today I was driving over in Bothell/Kenmore area. I noticed the site which used to host Sprint eNB 745953 (where Waynita Way NE turns into 100th Ave NE) before it was fully decommissioned last year is now hosting all new T-Mobile gear. The gear isn't live yet but is fully installed. My guess is they plan to decommission the T-Mobile B2/B66 (enB 84647) only site a few blocks up the hill. This is a great move because decommissioning that old site would reduce interference with eNB 84740/175124. At the same time, the new location should notably improve coverage in the geographically shielded area along Waynita/100th. The weird thing is I can't find a permit for this anywhere! -
By Paynefanbro · Posted
Mint and Ultra: Welcome to the T-Mobile Family! https://www.t-mobile.com/news/business/t-mobile-closes-acquisition-mint-and-ultra-mobile -
https://www.t-mobile.com/2023-annual-report Most items s4gru members will be aware of, but an interesting read. -
I've now seen 100 MHz n77 from SoftBank and 100 MHz n78 from NTT. NTT seems to be a bit better south of Osaka, though in some cases it drops down to B19 LTE as some areas around here are pretty rural. SoftBank has n77 around, but it's flakey enough that I switched eSIMs earlier this morning. -
I'm currently typing this from a bullet train headed from Tokyo to Osaka. Using a roaming eSIM rather than T-Mobile as it's a lot cheaper, but I'll start with T-Mobile's roaming experience. Since I have a business line, I can't add data packs online, so I'm just using the 256 kbps baseline service you get by default. That service runs on Softank 4G. SoftBank has a well-built-out LTE network though, with plenty of B41, falling back to B1/3/8 as needed. 5G roaming from T-Mobile doesn't appear to exist though. I've seen 20+10 MHz B41 when I've looked, generally speaking. WiFi calling works well, and voice calls over LTE work fine too (I forgot to turn WiFi back on after doing some testing, so I expect my bill to be a dollar more next month). I want to say I even got HD voice over the cell network for the VoLTE call I did. I have a bunch of eSIMs and a couple of physical SIMs to try out. I've gotten the eSIMs up and running, but last I checked the physical SIM wasn't working even after activation so I'll run through eSIMs for the moment and update this thread with pSIM info and details on not-Tokyo in the coming days. First off, there's US Mobile's complimentary East Asia eSIM (5GB) that I grabbed before my unlimited plan Stateside expired. That SIM uses SIM Club, routing through Singapore, running on SoftBank LTE and 5G. I've seen 40 MHz n77, as well as 10x10 n28, and have seen download speeds in excess of 200 Mbps with uploads of more than 50 Mbps, though typical speeds are slower. Routing is via Equinix/Packet.net. 5G coverage is rather spotty, but LTE is plenty fast enough; either my phone doesn't want to use the 5G band combos that have more coverage or 5G coverage is just spottier here than in the US (at least on T-Mibile). Latency is as low as 95ms to sites in Singapore (usually closer to 120ms), which is pretty great considering the 3300 mi between Tokyo and Singapore. Next there's Ubigi. It also routes through Singapore via Transatel (despite being owned by NTT), and sites on top of NTT docomo's network. I didn't see NTT 5G in Tokyo when I tested it, but since then I've seen 10x10 n28, and have seen B1/B3/B19 on the LTE side. So far it's not the fastest thing out there, but I'm guessing coverage will be a little better...or maybe not. This was $17 for 10GB. Latency is a bit higher to Singapore, but still under 150ms it seems. Then there's Airalo, which was the cheapest when I bought it at $9 for 10GB. It also routes through Singapore (on Singtel), but on my S24 I have my pick of KDDI (au) or SoftBank. KDDI has extensive B41 coverage and I've seen 20+20 with UL CA. While waiting for the train at HND Terminal 3 (Keikyu line) I hit 250+ Mbps down and 10+ Mbps up...over LTE...with pretty respectable latency numbers (not much above 100ms). This is in adition to supporting SoftBank, also on LTE (my S24 defaulted to KDDI, while my wife's Pixel 8 defaulted to SoftBank and didn't seem to want to connect to KDDI). Of the various carriers mentioned, I'd say this was the best pick, though prices have bumped back up to $18 for the 10GB plan...but it's probably still what I'd pick if I had to pick just one carrier. Then there's Saily, which uses Truphone out of Hong Kong. I haven't used this as much, as I only grabbed 3GB for $7. It runs on NTT but doesn't seem to have 5G access and doesn't seem to have as good speeds. Yes, Hong Kong is way closer to Japan, but latency didn't seem to be any better, at ~150ms. In all cases, I've had reception even in train tunnels and even at high speed on the bullet train, on all three carriers I've tried (I don't think I'll be able to play with a Rakuten SIM, which is rather disappointing). There have been cases where service has degraded, but it looks like you'd have reasonable cell service no matter which of the big three carriers you picked...and since T-Mobile roams on one of them, that's good enough if you're content to buy day passes.
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