Method and apparatus for determining resource pool

A method of determining a resource pool for a sidelink transmission, the method comprising:

• receiving, at a mobile device and from an evolved NodeB (eNB), resource pool configuration information, the resource pool configuration information comprising a bitmap to determine the resource pool;
• determining, for a period having a plurality of Frequency Division Duplex (FDD) subframes, a first subset of subframes by excluding, from the plurality of FDD subframes, subframes in which a sidelink synchronization signal (SLSS) resource is configured;
• determining, for the period, a second subset of subframes by excluding, from the first subset of subframes, one or more subframes, wherein a quantity of the second subset of subframes corresponds to an integer multiple of a length of the bitmap;
• and
• determining, based on a plurality of repetitions of the bitmap, the resource pool for a sidelink transmission from the second subset of subframes.

A method of determining a resource pool for a sidelink transmission, the method comprising:

• receiving, at a mobile device and from an evolved NodeB (eNB), resource pool configuration information, the resource pool configuration information comprising a bitmap to determine the resource pool;
• determining, for a period having a plurality of consecutive subframes, a first subset of subframes by excluding, from the plurality of consecutive subframes:
• subframes in which a sidelink synchronization signal (SLSS) resource is configured;
• and
• subframes other than uplink subframes;
• performing a modulo operation based on a quantity of the first subset of subframes and a length of the bitmap to determine one or more subframes to be excluded from the first subset of subframes;
• determining, for the period, a second subset of subframes by excluding, from the first subset of subframes, the one or more subframes, wherein a quantity of the second subset of subframes corresponds to an integer multiple of the length of the bitmap;
• and
• determining, based on a plurality of repetitions of the bitmap, the resource pool for a sidelink transmission from the second subset of subframes.