公开(公告)号：US20170099683A1

公开(公告)日：2017-04-06

申请号：US15269679

申请日：2016-09-19

Applicant: THALES

Inventor： David NIDDAM ,  Mathieu GINESTE ,  Cécile FAURE ,  Isabelle ULPAT

IPC: H04W74/08 ,  H04L12/26 ,  H04L12/24

CPC classification number: H04W74/0833 ,  H04B7/1851 ,  H04B7/18539 ,  H04L41/0896 ,  H04L43/16 ,  H04L47/10

Abstract: A method of adapting the capacity of a contention transmission channel between terminals and a connection station comprises a step of continuous estimation, using measurements in reception of expected bursts, a probability of receiving an empty expected burst Pe, or the probability Pe and a measured probability of receiving a burst Ps, or a probability of receiving a burst having undergone a collision Pc. The method determines a current quantity Gr, monotonically sensitive to the external loading of the contention channel, using an estimated probability, Pe or Pc, or of the two estimated probabilities Pe and Ps, and detects whether a crossing of a threshold from among two predetermined thresholds while deviating from a fixed nominal value of Gr has occurred to decide to increase or decrease the current capacity of the transmission channel. The connection station notifies the terminals in quasi-real-time of the current composition of the transmission channel.

公开(公告)号：US20170099675A1

公开(公告)日：2017-04-06

申请号：US15270999

申请日：2016-09-20

Applicant: THALES

Inventor： Mathieu GINESTE ,  David NIDDAM ,  Cécile FAURE ,  Isabelle ULPAT

IPC: H04W72/12 ,  H04W74/08

CPC classification number: H04W72/1263 ,  H04B7/18517 ,  H04W72/04 ,  H04W74/0833

Abstract: A method for transmitting data over an uplink from a terminal TE taken out of a plurality of terminals to a gateway GW switches data packets or packet fragments between a first random access mode and a second demand assigned multiple access DAMA mode. Each terminal TE routes the data packets or the packet fragments over the random access channel RACH or over a demand assigned multiple access channel via a demand assigned multiple access DAMA according to the size of the packets and their class of service, and information items representative of the current transmission resources allocated to the random access channel RACH and to the demand assigned multiple access DAMA mode, the representative information items being notified to the terminals via a return link.