Invention Grant
- Patent Title: Wireless device, a radio network node and methods for discontinuous reception in device to device communications
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Application No.: US15331810Application Date: 2016-10-21
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Publication No.: US09961638B2Publication Date: 2018-05-01
- Inventor: Qianxi Lu , Qingyu Miao
- Applicant: Telefonaktiebolaget LM Ericsson (publ)
- Applicant Address: SE Stockholm
- Assignee: Telefonaktiebolaget LM Ericsson (publ)
- Current Assignee: Telefonaktiebolaget LM Ericsson (publ)
- Current Assignee Address: SE Stockholm
- Agency: NDWE LLP
- Main IPC: G08C17/00
- IPC: G08C17/00 ; H04W52/02 ; H04W76/04 ; H04W72/14 ; H04W76/02 ; H04W88/06

Abstract:
A wireless device and a method for controlling Discontinuous Reception (DRX) in the wireless device. The wireless device is capable of cellular and Device to Device (D2D) communication. The method comprises: when receiving a first uplink cellular communication grant, activating, for a first period of time (t1), a DRX-wake state for a cellular DRX configuration during which DRX-wake state the wireless device is configured to receive a second uplink cellular communication grant, and when receiving a first D2D communication grant, activating, for a second period of time (t2), the DRX-wake state for a D2D DRX configuration, wherein the D2D DRX configuration is separate from the cellular DRX configuration, and during which DRX-wake state the wireless device is configured to receive a second D2D communication grant. Thereby the wireless device is capable of controlling DRX using both the cellular DRX configuration and the D2D DRX configuration.
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