US Patent No. 10,117,283

METHOD AND APPARATUS FOR D2D BASED ACCESS


Patent No. 10,117,283
Issue Date October 30, 2018
Title Method And Apparatus For D2d Based Access
Inventorship Rui Fan, Beijing (CN)
Qianxi Lu, Beijing (CN)
Qingyu Miao, Beijing (CN)
Assignee Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)

Claim of US Patent No. 10,117,283

1. A method in a base station of a cellular radio system, the method comprising:obtaining at least one access control parameter for a device-to-device, D2D, based access, wherein said at least one access control parameter can be used to redirect between D2D contention based access and D2D contention free access depending on whether access is allowed for D2D contention based access or for D2D contention free access, and wherein said at least one access control parameter includes a barring factor indicating a probability that the D2D based access is allowed and a barring time indicating a time period that a terminal device waits before retrying the D2D based access after being barred; and
transmitting a message including said at least one access control parameter to one or more terminal devices.