<?xml version="1.0" encoding="UTF-8" ?>
<?xml-stylesheet type="text/xsl" href="https://devzone.nordicsemi.com/cfs-file/__key/system/syndication/rss.xsl" media="screen"?><rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:slash="http://purl.org/rss/1.0/modules/slash/" xmlns:wfw="http://wellformedweb.org/CommentAPI/" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>Throughput issue in multirole application</title><link>https://devzone.nordicsemi.com/f/nordic-q-a/38124/throughput-issue-in-multirole-application</link><description>I have an application where I need to be connected as peripheral in 1 connection and as central in up to say 10 connections simultaneously. I posted regarding connection event length before https://devzone.nordicsemi.com/f/nordic-q-a/34022/optimizing</description><dc:language>en-US</dc:language><generator>Telligent Community 13</generator><lastBuildDate>Tue, 04 Sep 2018 13:27:55 GMT</lastBuildDate><atom:link rel="self" type="application/rss+xml" href="https://devzone.nordicsemi.com/f/nordic-q-a/38124/throughput-issue-in-multirole-application" /><item><title>RE: Throughput issue in multirole application</title><link>https://devzone.nordicsemi.com/thread/147196?ContentTypeID=1</link><pubDate>Tue, 04 Sep 2018 13:27:55 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:a5190eba-5caa-46b8-9b70-f015f8a347fd</guid><dc:creator>Sigurd</dc:creator><description>&lt;p&gt;Hi&amp;nbsp;Alexander,&lt;/p&gt;
&lt;p&gt;I would recommend that you take a look at the chapter &amp;quot;&lt;a href="https://infocenter.nordicsemi.com/topic/com.nordic.infocenter.s140.sds/dita/softdevices/s130/ble_data_throughput/ble_data_throughput.html?cp=2_3_2_0_16"&gt;Bluetooth Low Energy data throughput&lt;/a&gt;&amp;quot; in the&amp;nbsp;SoftDevice Specification.&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: Throughput issue in multirole application</title><link>https://devzone.nordicsemi.com/thread/147034?ContentTypeID=1</link><pubDate>Mon, 03 Sep 2018 15:45:30 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:0f0db083-da98-4c84-a1f1-cdfefb017602</guid><dc:creator>Turbo J</dc:creator><description>[quote userid="69762" url="~/f/nordic-q-a/38124/throughput-issue-in-multirole-application"]I get a throughput of ~110kB/s. Connection interval 100ms,[/quote][quote userid="69762" url="~/f/nordic-q-a/38124/throughput-issue-in-multirole-application"]mock sensor. Connection interval 200ms[/quote]
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;So your thougput is roughly halved, which is excacly what I would have expected in that scenario. Half of the connection intervals are now used for the central and are thus unavailable in peripherial.&lt;/p&gt;
&lt;p&gt;Note that your throughput figures (if they are KByte/sec) are really high, and would be better suited to bluetooth classic IMHO.&lt;/p&gt;
&lt;p&gt;You might want to play with your connection interval timings a bit - e.g. slow down the central connection further.&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item></channel></rss>