CCS/CC2640R2F: Example solution of cc2640r2f in nortos mode

Are you here referring to BLE long range? 

NO.i am looking for      C:\ti\simplelink_cc2640r2_sdk_3_10_00_15\examples    ,   Long range example,  not  BLE!   If I want to implement long range, how to set

We haven't tested LRM settings for 2.4 GHz. The range with 2.4 GHz is limited hence we have only done LRM for sub 1-GHz. What is the background for using LRM at 2.4 GHz? 

We are making a special wireless product. The data volume is a little large, and there are many nodes. The project requirement is that we can't use ble to develop the project

Our current tests and software programs are based on these examples of C: \ Ti \ simplelink ﹐ cc2640r2 ﹐ SDK ﹐ 3 ﹐ 10 ﹐ 15 \ examples.

It is found that when the distance is more than 15m and the number of nodes is large, the data loss is very serious. The hardware of the product is based on cc2640 lanchpad

Developed. At present, we want to test the sending and packet loss in the long range mode of non ble mode. We want to ask how to start. Thank you

If the data volume is large, wouldn't you need a bit higher datarate than LRM is able to give?

For the tests you are doing now, which datarate are you using? 

Which RSSI do you see @15 m? Have you looked into if you get data loss due to too much data on the air (more than one node in TX at any given time)? 

I have tested 250 Kbps and 100 Kbps, according to the example. After about 10 m, RSSI is only - 80 dB or worse at about 15 m away. Many times it's hard to communicate.

When I need to send a large amount of data, I choose a cleaner frequency, and only one node is sending it. Most of the time, it is unable to communicate with the remote node.

Not very stable. How can I improve the stability of the product in this way? Thank you.

Does that mean you don't have any form of LBT or CCA to ensure that you don't introduce noise that makes it more difficult to communicate with the nodes.