ImmerStark
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Everything posted by ImmerStark
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On the bright side since we never got wimax and NSN is doing the band 41 deployment here we are going to get the latest and greatest 8tx8rx equipment........ eventually.
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I'm sure that t mobile realizes that coverage and reliability is what brings in the lucrative post paid accounts. Only subprime subscribers are willing to settle for metro only coverage. Sent from my SPH-L720 using Tapatalk
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I was delivering to the sprint corporate store today talking to a girl that works there and she said she has been inundated with complaints of these issues. So I know it's not just me. Sent from my SM-G900P using Tapatalk
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I work in Choctaw and Harrah way too much. Sprint has LTE and evdo out there, T-Mobile has edge. Far east side or Norman is the same story. Sent from my SM-G900P using Tapatalk
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Ugggg, Things are getting worse. Even with band 26 disabled I'm now getting bumped to 3g in most of the places I frequent. Ironically the tower I connect to at home is one of the few that I can connect to both band 25 and 26, which is all good and great except for the fact that I use wifi at home. How is it that ericsson can cock things up this badly?
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Sprint needs T-Mobile's rural towers and T-Mobile needs Sprint's low band spectrum. Sent from my Nexus 7 using Tapatalk
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Maybe in a year or two T-Mobile will be viable here, but for now the coverage is simply too limited. LTE and hspa cover only a small island surrounded by vast oceans of edge. Sent from my SM-G900P using Tapatalk
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Same here, I spend most of my day on 3g now. It seems like if there is a site anywhere within 10 miles of me without ecsfb and my phone detects it it will drop back to 3g and not reconnect to lte unless I toggle airplane mode.
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The sad thing is that here AT&T just does not have the quality to justify their market share. Their voice quality is garbage, they are running a 5x5mhz lte deployment just like Sprint, and yet people keep flocking to them because they have "more bars". If price is no object Verizon is really the one to have here, they have 800/1900mhz CDMA 1x and evdo, 750/aws lte, and the fewest subscribers on their network of the big 4. The only downsides are the price and mediocre voice quality(it's still better than the garbage voice of at&t though). Sent from my SM-G900P using Tapatalk
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I have been observing the bars changing in relation to the rsrp where as they do not change in relation to the rsrq. This isn't my first rodeo. I remember the good old days when Sanyo phones displayed bars based on ec/io which was much more relevant in determining the success and quality of a call, then they switched to rssi based bars which was practically worthless since you could have perfect calls at 1 bar and garbled ones at 4 bars. Maybe LTE bars should be based on the negotiated link rate with the tower or some other more meaningful metric. But as of right now I'm fairly certain they are based on the rsrp but with a scale appropriate for CDMA rssi. Sent from my SM-G900P using Tapatalk -
Unfortunately our sites are spaced for bare minimum coverage with CDMAOne with very little extra overlap to accomodate for technologies that don't have low orders of modulation and a generous spreading gain. In a way all of the technological advantages of CDMA over narrow band 2G technologies are coming back to bite us in the ass. All the former TDMA based opperators had to space their towers much closer together for coverage and capacity which now aligns very closely with the spacing needs of LTE.
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As near as I can tell someone was lazy and neglected to change the calibration for the signal bars to account for the difference between rssi in cdma and rsrp in lte. in other words -105db rssi for cdma equals 1 bar and -105db rsrp for lte equals 1 bar despite the fact that at those levels cdma is approaching the point of failure and lte is still quite usable. the Verizon and T-mobile phones I have observed are calibrated correctly, so the onus is on Sprint to correct it. The consequence of not correcting the oversight will be displeased lay customers that are walking around thinking the network sucks because most of the time they only have 1 or 2 bars out of a possible 6.
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The higher the frequency the greater the attenuation either through propagation or physical obstruction. Unless Sprint adds a ton of sites in out market LTE coverage will continue to be swiss cheese. Sadly band 26 is not turning out to be the panacea I had hoped for. I'm still holding out hope that network optimization will improve things, but that hope dwindles with each passing day.
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During the testing phase power output may be much lower than after acceptance. I know that one of the sites that I use regularly was like that. When it first started broadcasting 800MHz it was only usable for ~1 mile from the tower and signal levels when right by the tower were in the -70db range. Now it is at full power and covers a much greater area.
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You can also be recieving a 1xrtt signal(either 800 or 1900) from one tower and ev-do from a different tower which is what appears to be happening at your office. If the 1xrtt 800MHz signal you are receiving were coming from the same tower as your ev-do it would be around -45dbm.
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I believe it is after the jellybean update. When I lose lte the number of bars displayed on 3g is higher than what was displayed in lte before the phone fell back to 3g. But I could be mistaken. Sent from my SPH-L720 using Tapatalk
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Unfortunately my job frequently requires real time communication and I have to be available if(when) life alert calls me about my 80 year old grandmother. Otherwise I totally agree about talking on the phone being a chore. I'm a very busy man and I would prefer textual communication in all noncritical situations. Sent from my SPH-L720 using Tapatalk
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My Verizon phone is calibrated much more realistically. So I don't think there is any reason sprint can't recalibrate it.
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Haha, I think you know that isn't a viable option.
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I have a small niggle about my s5: the signal indicator bars are not calibrated correctly for lte. Anything less than -100db rsrp displays as only 1 bar. Since -100db rsrp is equivalent to -70 to -80db rssi my phone shows only 1 bar most of the time. It has a very negative psychological impact on perceived network quality. Sent from my Nexus 7 using Tapatalk
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I'm getting band 26 is a lot of place in the okc metro area now, sadly only 1 site has ecsfb enabled for band 26 though. So my phone gets bumped down the 3g unless I disable band 26. What a pain in the rear. Sent from my Nexus 7 using Tapatalk
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You'll need your Msl. I got mine by using Msl utility from xda. From the phone dialer dial ##3282# select edit, lte, deselect band 26, then restart your phone. Sent from my SPH-L720 using Tapatalk
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I just disabled band 26 and now I have lte again in all the places I do with my s4. Sent from my SPH-L720 using Tapatalk
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Technical details of congestion on FDD and TDD LTE
ImmerStark replied to newyorker's topic in General Topics
As the number of users on the system increases the number of sub carriers that can be allocated to each one is reduced. Generally this results in decreased throughput but maintains good latency since each user still has a dedicated(albeit low bandwidth) data path.
