US 12,295,017 B2
Device-to-device radio resource management
Abdoulaye Bagayoko, Berkshire (GB); Christian Mouton, Berkshire (GB); Caroline Jactat, Berkshire (GB); Lanto Rakotoharison, Berkshire (GB); and Philippe Delahaye, Berkshire (GB)
Assigned to NEC CORPORATION, Tokyo (JP)
Filed by NEC Corporation, Tokyo (JP)
Filed on Jun. 10, 2019, as Appl. No. 16/436,505.
Application 16/436,505 is a continuation of application No. 14/774,065, granted, now 10,349,416, previously published as PCT/JP2015/001190, filed on Mar. 5, 2015.
Claims priority of application No. 1404952.2 (GB), filed on Mar. 19, 2014.
Prior Publication US 2019/0297599 A1, Sep. 26, 2019
Int. Cl. H04W 72/51 (2023.01); H04W 24/10 (2009.01); H04W 72/04 (2023.01); H04W 72/044 (2023.01); H04W 72/12 (2023.01); H04W 76/14 (2018.01)
CPC H04W 72/51 (2023.01) [H04W 24/10 (2013.01); H04W 72/04 (2013.01); H04W 72/12 (2013.01); H04W 76/14 (2018.02); H04W 72/044 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A method performed by a user equipment (UE) configured to support device-to-device (D2D) communication, the method comprising:
operating in one of two modes for resource allocation, the two modes comprising:
a scheduled resource allocation mode in which the UE requests a resource for D2D communication from a base station and in which the base station schedules the resource for the D2D communication; and
an autonomous resource selection mode in which the UE selects, from a first pool of radio resources, the resource for the D2D communication;
receiving, from the base station, first configuration information indicating a second pool of radio resources and system information comprising second configuration information comprising information indicating a time period for causing the UE to perform the autonomous resource selection mode; and
in a case in which the UE is using the scheduled resource allocation mode, a condition of a number of failures is met, and the time period is ongoing, selecting temporarily, the resource for the D2D communication from the second pool of radio resources.