Understand Mesh in Bluetooth

RE: Understand Mesh in Bluetooth

Ankit — Sat, 05 Jan 2019 20:59:49 GMT

Hi,

I am also trying to measure the throughput and latency of bluetooth mesh using nordic light switch and kind of stuck. Could you be so kind as to share your thought and provide me some direction how you achieved that?

Thanks

Ankit

RE: Understand Mesh in Bluetooth

tesc — Mon, 17 Sep 2018 09:29:56 GMT

Hi,

1. Yes, Bluetooth Mesh is specified through the Mesh Networking Specifications, which are separate from the Core Specifications. (Core Specification version 5.0 is what is referred to as "Bluetooth 5".)

Bluetooth Mesh builds on top of the Bluetooth Core Specification. What version of Bluetooth that you need is a bit complicated, but you can go as far back as Bluetooth 4.0 with the right Core Specification Addendum. Bluetooth Mesh doesn't use any features specific to Bluetooth 5 as of yet.

2. Because of the above (Bluetooth Mesh does not build on Bluetooth 5 features) the answer is no. The Bluetooth Mesh network does not use the Bluetooth 5 features. (Unless you either go out of spec on Bluetooth Mesh or if you run BLE concurrently.)

Regards,
Terje

RE: Understand Mesh in Bluetooth

Jan — Mon, 17 Sep 2018 08:10:37 GMT

[quote userid="8164" url="~/f/nordic-q-a/37720/understand-mesh-in-bluetooth/145849"]Bluetooth Mesh is not part of Bluetooth 5. Rather, it is a separate specification (and the current version is based on Bluetooth 4.)[/quote]

Hi Terje,

I'm new to Bluetooth Mesh and I'm going to be doing my graduate internship about it over the next 5 months.

Could you confirm for me if the following statements are true?

1. Bluetooth Mesh was released separately from Bluetooth 5 (a lot of articles mention that Mesh is a part of BT5 hence the confusion)

2. A Bluetooth Mesh network build with Nordic Thingy's will use Bluetooth 5.

Thanks in advance!

Jan

RE: Understand Mesh in Bluetooth

tesc — Tue, 28 Aug 2018 15:05:35 GMT

Hi,

Thank you for the clarification. Some of what you mention is not simulators, rather it is tests using physical hardware, but from what I understand you are still looking for simulators that can give you theoretical values for the parameters that you mention.

I will leave it to the community to come with suggestions.

Regards,
Terje

RE: Understand Mesh in Bluetooth

anilkunchalaece — Mon, 27 Aug 2018 09:14:45 GMT

Hi,

Thanks for reply.

I am looking for simulators to check mesh QoS,Latency, throughput and other parameters.

few reports i came across are ericssion and silabs. si labs used their hardware but iam not sure about the ericssion report.

I came across this (I haven't tested it) for BLE simulation.

RE: Understand Mesh in Bluetooth

tesc — Mon, 27 Aug 2018 08:39:31 GMT

Hi,

Bluetooth Mesh is not part of Bluetooth 5. Rather, it is a separate specification (and the current version is based on Bluetooth 4.)

1. nRF51-ble-bcast-mesh, also called OpenMesh, is a predecessor to our nRF5 SDK for Mesh. That means you should use our nRF5 SDK for Mesh instead.

I have not seen this ble-mesh that you linked to before. It looks like they have a finished mesh node product, but it is hard to tell exactly what they offer from their web page.

2. I am not aware of any simulators for Bluetooth. What kind of simulator are you looking for? Perhaps there are others here that know more about this.

Regards,
Terje