Method and apparatus for controlling priority in device to device communication
AssigneeElectronics and Telecommunications Research Institute
InventorsChoongil Yeh, Young Jo Ko, Kyoung Seok Lee
Life of this patent
Estimating the term…
Abstract
The present invention relates to a method and an apparatus for controlling priority in device-to-device communications. A plurality of transmission resources are classified into resource index sets depending on indexes, and a priority given to a communication object to which a device communication is applied is determined. One resource index set is allocated to a device of the communication object depending on the priority of the communication object.
Claims7
A control method in device-to-device communications in which a plurality of devices transmit packets through a same channel, the method comprising:
- transmitting, by one of the devices transmitting a packet for a current period, a first reference signal for instructing continuous use of the channel when the one device continues packet transmission for a next period;
- and
- transmitting, by the one device, a second reference signal for instructing to end the use of the channel when the one device does not use the channel for the next period, wherein
- a plurality of transmission resources are classified into resource index sets,
- the one device has one of the resource index sets allocated thereto depending on a priority of the one device, and
- the one device transmits the first reference signal or the second reference signal by using a transmission resource corresponding to the allocated resource index set.
A control method in device-to-device communications in which a plurality of devices transmit packets through a same channel, the method comprising:
- monitoring the channel by one of the devices;
- not attempting, by the one device, packet transmission for a next period upon receiving a first reference signal for instructing continuous use of the channel from another device;
- and
- attempting, by the one device, packet transmission for the next period upon receiving a second reference signal for instructing to end the use of the channel from the another device, wherein
- a plurality of transmission resources are classified into resource index sets,
- one of the resource index sets is allocated to the another device depending on a priority of the another device, and
- the first reference signal or the second reference signal is transmitted by using a transmission resource corresponding to the allocated resource index set.
A control apparatus in device-to-device communications in which a plurality of devices transmit packets through a same channel, the apparatus comprising:
- a radio frequency (RF) converter configured to transmit/receive a signal through an antenna;
- and
- a processor connected with the RF converter, wherein
- the processor is configured to
- transmit a first reference signal for instructing continuous use of the channel when packet transmission continues for a next period, and
- transmit a second reference signal for instructing to end the use of the channel when the channel for the next period is not used through the RF converter in a current period, wherein
- a plurality of transmission resources are classified into resource index sets,
- a device of the apparatus has one of the resource index sets allocated thereto depending on a priority of the device, and
- the RF converter is configured to transmit the first reference signal or the second reference signal by using a transmission resource corresponding to the allocated resource index set.
Dependencies are inferred from the claim text.