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Thread: Dss

  1. #1
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    Dss

    Looks like theres some.progress on the DSS front!

    https://www.fiercewireless.com/wirel...csson-qualcomm

    Sent from my Pixel 4 XL using Tapatalk

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    Super excited to see how fast 5G is on sub-6 GHz. It should be more than double the speed of LTE because of the full duplexing + greater spectral efficiency.

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    Quote Originally Posted by VVivian View Post
    Super excited to see how fast 5G is on sub-6 GHz. It should be more than double the speed of LTE because of the full duplexing + greater spectral efficiency.
    Unless something has changed from what I've read it's 5%-10% on lowband. maybe 20%-30% on mid band. People expecting these great speeds on 5G especially when spectrum is being taken away from 4G are going to be disappointed. 10 MHz low/mid band 4G faster than 5 MHz low/mid band 5G

    Side topic, I notice there is not 5G band for band 13? Even band 14 has a 5G equivalent. That's odd. Even though realistically it'll b at least 5 years before Verizon decides to put band 13 on 5G I think. I can see then doing 850 next year like at&T. not sure what they are going to do in places like Miami, Orlando, Jacksonville, DFW, San Antonio and Austin where they have no 850.

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    Tmobile estimated that the average speeds on band 71 would double from 35mbps to 70mbps but continues to use the term 5G for that rollout as if it's all the same.


    Verizon is holding down expectations for 5G on sub 6

    https://www.telecompetitor.com/veriz...h-from-4g-lte/

    Verizon said it has completed a 5G dynamic spectrum sharing (DSS) demonstration using technology from Qualcomm and Ericsson, and a spokesperson said the company will deploy the technology in its commercial network “in the near future.” The technology is designed to enable 5G to share spectrum already deployed for LTE with the LTE service, which should enable Verizon to expand its 5G coverage areas.

    Just don’t expect the 5G experience based on DSS to be the same as the one that Verizon has delivered so far over its current 5G offering, which has been deployed on spectrum in the millimeter wave band.

    Verizon 5G Dynamic Spectrum Sharing

    Verizon has touted speeds in the hundreds of megabits per second for its current 5G offering deployed on millimeter wave spectrum. But the Verizon spokesperson declined to say what speeds the company will be able to provide using DSS for 5G.

    When asked what capabilities users will get when they are on 5G via DSS using spectrum in which Verizon has also deployed LTE, the spokesperson said in an email to Telecompetitor that “customers will get an experience equal to or better than what they see with 4G LTE today.”

    She also went on to tout the benefits of 5G Ultra Wideband, which is Verizon’s name for its 5G offering deployed in the millimeter wave band, calling it a “keenly differentiated” experience.

    Verizon is able to offer the highest speeds using 5G in the high-frequency millimeter wave band because higher-frequency spectrum supports faster speeds but over shorter distances — which means that Verizon initially has deployed the service only in high-traffic areas of major metro markets. The spectrum that will underlie Verizon’s DSS-based 5G offering is in lower frequency bands, including mid-band and low-band spectrum.

    Verizon views DSS as a solution, or at least a partial solution, to an issue that some industry observers have noted: The company doesn’t have much in the way of spare mid-band spectrum, which some observers see offering the optimum mixture of coverage and speed for 5G.

    The company isn’t alone in guarding information about 5G speeds. T-Mobile hasn’t said what speeds it will support when it launches 5G using low-band spectrum – an event now targeted for early next month.

    Of course, 5G isn’t all about speed. It also is designed to provide lower latency to support autonomous vehicles, virtual and augmented reality and other delay-sensitive applications. But in the press release, Verizon said nothing about the latency of 5G over DSS, instead touting the low latency of its 5G Ultra Wideband (UWB) offering – noting that customers will see “near real-time experience” when they are on the UWB network.

    Verizon 5G devices currently on the market fall back to LTE when 5G is not available (and currently that means where 5G UWB is not available). Based on the information that Verizon has provided, it would appear that when the company deploys 5G using DSS as the fallback for 5G UWB, end users won’t notice much difference from what they see now when falling back to LTE.

    There is an advantage to Verizon operationally in deploying 5G using DSS, however. In the email to Telecompetitor, the spokesperson noted that deploying 5G using DSS will “enable the expansion of the 5G standalone experience as we move forward with deployment of the new 5G core.”............................................ ..........

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    It's going to be exciting to see for sure and let's hope DSS lives up to the hype. I would say we will see n2 next year at some point given that neither Verizon or AT&T have nationwide CLR.

    For you guys that want to check and see what the throughput speeds on 5G will be with different carrier sizes, modulation, etc, here is a neat tool to use:

    https://5g-tools.com/5g-nr-throughput-calculator/

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    Quote Originally Posted by offthegrid View Post
    Tmobile estimated that the average speeds on band 71 would double from 35mbps to 70mbps but continues to use the term 5G for that rollout as if it's all the same.


    Verizon is holding down expectations for 5G on sub 6

    https://www.telecompetitor.com/veriz...h-from-4g-lte/
    That would assume suing the same bandwidth which of course you're not because you're splitting it between 4G and 5G. Also 70 Mbps whoopty do. 20 MHz of band 71 over 4G can do double that. To me the point of 5G is to relive congestion off the 4G network. You do that by using spectrum you're not using on 4G.

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    I really hope Verizon puts mmWave on every cell site. Even though it can’t reach as far, it'll still relieve some amount of congestion on the lower bands.

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    Quote Originally Posted by VVivian View Post
    I really hope Verizon puts mmWave on every cell site. Even though it can’t reach as far, it'll still relieve some amount of congestion on the lower bands.
    At best it can reach 2000 feet and sometime only 400 feet. Heck that's barely from the top of the tower to the ground. There would be very little ground covered if they put mmwave on actual towers and no help in more rural areas. mmwave will be put on small cells attached to light posts and things like that.

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    I would be surprised if they put mid-band on every tower let alone mmwave.

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    Quote Originally Posted by Jack Hagar View Post
    That would assume suing the same bandwidth which of course you're not because you're splitting it between 4G and 5G. Also 70 Mbps whoopty do. 20 MHz of band 71 over 4G can do double that. To me the point of 5G is to relive congestion off the 4G network. You do that by using spectrum you're not using on 4G.
    Once they implement DSS next year they won't be splitting the bandwidth though so that same 20mhz will be capable of faster speeds than whatever it can do on 4G.

    Tmobile has criticized Verizon for using mmwave (while buying mmwave themselves), which is the only way to reach the speeds the media has created expectations of for 5G, then they infer that they will have 'nationwide 5G' over band 71 which is no where near the same thing speed wise.

    Once Verizon runs the fiber their mmwave will be all over metro areas.

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    Quote Originally Posted by offthegrid View Post
    Tmobile estimated that the average speeds on band 71 would double from 35mbps to 70mbps but continues to use the term 5G for that rollout as if it's all the same.
    If T-Mobile is only getting 35mbps on band 71 with LTE, they are still only using 2X2 MIMO and 64-QAM for some reason.

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    Quote Originally Posted by offthegrid View Post
    Once they implement DSS next year they won't be splitting the bandwidth though so that same 20mhz will be capable of faster speeds than whatever it can do on 4G.
    Anyway spectrum used for 5G can not be used for 4G so it is in fact taking away spectrum from 4G. And 5G minimum carrier size is 5 MHz. So at least 5 MHz is going to be taken away.

    Tmobile has criticized Verizon for using mmwave (while buying mmwave themselves), which is the only way to reach the speeds the media has created expectations of for 5G, then they infer that they will have 'nationwide 5G' over band 71 which is no where near the same thing speed wise.

    Once Verizon runs the fiber their mmwave will be all over metro areas.
    And next year when Verizon and at&t do 5G over lowband T-Mobile can no longer used their lowband as an "advantage" I can't wait for another 5 days when the speed tests for this 5G over lowband are underwhelming.

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    Quote Originally Posted by Jack Hagar View Post
    Anyway spectrum used for 5G can not be used for 4G...
    You clearly don't understand DSS.

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    Quote Originally Posted by dffdce View Post
    You clearly don't understand DSS.
    I understand it fine. I also understand that 10 MHz is just that and you don't magically turn it into 20 MHz. Current 4G spectrum should stay on 4G until there is significant numbers of 5G device out there. Use mmwave CBRS, CBAND even unlicensed 5.9 GHz for 5G.

    Also neither T-Mobile or at&t are using DSS on their lowband 5G rollouts this month. So they are in fact taking away spectrum from 4G.

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    Personally, I think deploying 5G over 850 MHz first and 1900 MHz second (in markets with both; otherwise one or the other) makes the most sense because densification + offloading will absolutely allow Verizon to spare at least a 5+5 MHz block (and also because 850 MHz would establish the wide range that's so critical to any new network).

    LTE will be fine with 700 + 1700/2100 + CBRS + LAA * densification - 5G offload.

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