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Feature #1780

Investigate requirements for EC-GS-IoT support

Added by laforge 11 months ago. Updated 11 months ago.

Status:
New
Priority:
Low
Assignee:
Target version:
-
Start date:
07/23/2016
Due date:
% Done:

0%

Spec Reference:

Description

EC-GSM-IoT is a GERAN extension introduced in 3GPP Release 13, aimed at enabling long-range, low-power IoT devices on top of GSM/GPRS/EDGE.

The feature was originally called EC-EGPRS (extended coverage Enhanced GPRS), and only later renamed for marketing reasons.

At the very least, it consists of very significant extensions to the RLC/MAC layer by introducing EC-BCCH, EC-PCH, EC-RACH, EC-AGCH, EC-PACCH, EC-GPRS-TBF

Further Reading: After a very brief review, it seems that at the very least
  • new convolutional coding schemes are introduced for messages in a single burst (rather than the usual 4)
  • 'blind retransmissions' are introduced to re-transmit messages up to 28 times
  • new logical channels are introduced

i.e. changes to physical layer and RLC/MAC are required.

History

#1 Updated by laforge 11 months ago

  • Description updated (diff)

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