RAN overload control for M2M communications in LTE networks
US10034121B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 1, 2013 |
| Grant date | Jul 24, 2018 |
| Priority date | — |
| Expiry date | Aug 1, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W74/0838
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
In a 3GPP LTE-A support for Mobile Type Communications, that is, M2M communications scheme, improvements of the random access are necessary to prevent random channel overload. Enhanced backoff in the presence of overload is such a mechanism, Counting the number of devices seeking RACH based on the number of received random access requests or else responses, and allocating Random Access resources on the basis of the number of requests, is another. Further, a channel aware resource allocation approach provides a way of determining, from the received requests, delay-tolerance of the M2M devices, based on which they are prioritized in accessing the random channel. Even within the prioritized devices, a smaller subset thereof may be prioritized further, according to radio conditions, to provide better access to those with higher SNR RBs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.