DEVICE-TO-DEVICE RESOURCE ALLOCATION METHOD AND APPARATUS

摘要

A method is provided for allocation of cellular channel resources and/or shared ISM band resources to device-to-device (D2D) user equipment (UE) pairs/clusters in mobile communications. A network entity makes assignments of cellular channel physical resource blocks to D2D UE based on interference measurements performed either by the network entity or reported to it by UE. Semi-persistent channel allocations are transmitted periodically to the UE on a downlink control channel. Channel specific allocations are transmitted to and received by D2D UE in each transmission time interval. Where the cellular band has insufficient resources to allocate to D2D UE, the network entity may determine portions of the shared ISM band that may be assignable to D2D UE and transmit channel allocations in the ISM band to the UE. An indicator bit may be added to the allocation transmissions to indicate whether there has been a change to the allocations since the previous transmission.