Information exchange method and apparatus for D2D communication
First Claim
1. A signal transmission/reception method of a device in a mobile communication system, the method comprising:
- transmitting, by the device, a device to device (D2D) request signal to a base station, wherein the D2D request signal includes at least one of device information, paired neighbor device information, pairing connection information, pairing resource information, and device buffer size;
receiving, by the device, information associated with a discovery signal and information associated with a pairing signal from the base station, wherein the information associated with the discovery signal and the information associated with the pairing signal includes an identification of a resource region to use when transmitting or receiving the discovery signal and the pairing signal based on the D2D request;
determining, by the device, a resource to receive the pairing signal for the device;
transmitting, by the device, the discovery signal including information related to the determined resource to receive the pairing signal for the device within a first period;
receiving, by the device, from a neighbor device that received the discovery signal, the pairing signal within a second period using a resource determined based on the information related to the determined resource to receive the pairing signal for the device; and
communicating a data signal with the paired neighbor device during a third period,wherein the resource for transmitting the pairing signal for the device is selected based on at least one signal received by the neighbor device during the first period.
1 Assignment
0 Petitions
Accused Products
Abstract
A method and apparatus for exchanging information between devices for use in the pairing process for Device To Device (D2D) communication is provided. A signal transmission/reception method of a device in a mobile communication system includes determining a resource for the device to transmit a pairing signal, transmitting a discovery signal including information on the determined resource, pairing with a neighbor device that received the discovery signal through the resource indicated by the resource information, and communicating data signals with the paired neighbor device. The information exchange method and apparatus for D2D communication is capable of preventing a plurality of devices from attempting pairing on the same frequency simultaneously, thereby improving pairing efficiency and reducing power consumption of the device.
-
Citations
20 Claims
-
1. A signal transmission/reception method of a device in a mobile communication system, the method comprising:
-
transmitting, by the device, a device to device (D2D) request signal to a base station, wherein the D2D request signal includes at least one of device information, paired neighbor device information, pairing connection information, pairing resource information, and device buffer size; receiving, by the device, information associated with a discovery signal and information associated with a pairing signal from the base station, wherein the information associated with the discovery signal and the information associated with the pairing signal includes an identification of a resource region to use when transmitting or receiving the discovery signal and the pairing signal based on the D2D request; determining, by the device, a resource to receive the pairing signal for the device; transmitting, by the device, the discovery signal including information related to the determined resource to receive the pairing signal for the device within a first period; receiving, by the device, from a neighbor device that received the discovery signal, the pairing signal within a second period using a resource determined based on the information related to the determined resource to receive the pairing signal for the device; and communicating a data signal with the paired neighbor device during a third period, wherein the resource for transmitting the pairing signal for the device is selected based on at least one signal received by the neighbor device during the first period. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
-
-
9. A device operating in a mobile communication system, the device comprising:
-
at least one processor configured to; transmit a device to device (D2D) request signal to a base station, wherein the D2D request includes at least one of device information, paired neighbor device information, pairing connection information, pairing resource information, and device buffer size, receive information associated with a discovery signal and information associated with a pairing signal from the base station, wherein the information associated with the discovery signal and the information associated with the pairing signal includes an identification of a resource region to use when transmitting or receiving the discovery signal and the pairing signal based on the D2D request, determine a resource to receive the pairing signal for the device, transmit the discovery signal including information related to the determined resource to receive the pairing signal within a first period, receive, from a neighbor device that received the discovery signal, the pairing signal within a second period using a resource determined based on the information related to the determined resource to receive the pairing signal for the device, and control the device to communicate a data signal with the paired neighbor device during a third period, wherein the resource for transmitting the pairing signal for the device is selected based on at least one signal received by the neighbor device during the first period. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
-
-
17. A signal transmission/reception method of a base station in a mobile communication system, the method comprising:
-
receiving, by the base station, a device to device (D2D) request signal from a device, wherein the D2D request includes at least one of device information, paired neighbor device information, pairing connection information, pairing resource information, and device buffer size; and transmitting, from the base station to the device, information associated with a discovery signal and information associated with a pairing signal, wherein the information associated with the discovery signal and the information associated with the pairing signal includes an identification of a resource region to use when transmitting or receiving the discovery signal and the pairing signal based on the D2D request, wherein the device is configured to; determine a resource to receive a pairing signal for the device based on the information associated with the pairing signal, transmit the discovery signal including information related to the determined resource to receive the pairing signal for the device within a first period using the information associated with the discovery signal, and receive the pairing signal for the device from a neighbor device that received the discovery signal, the pairing signal for the device received within a second period using a resource determined based on the information related to the determined resource to receive the pairing signal for the device, and wherein the resource for transmitting the pairing signal for e device is selected based on at least one signal received by the neighbor device during the first period. - View Dependent Claims (18)
-
-
19. A base station of a mobile communication system, the base station comprising:
-
at least one processor configured to; receive, from the device, a device to device (D2D) request signal, wherein the D2D request includes at least one of device information, paired neighbor device information, pairing connection information, pairing resource information, and device buffer size; and transmit to the device information associated with a discovery signal and information associated with a pairing signal, wherein the information associated with the discovery signal and the information associated with the pairing signal includes an identification of a resource region to use when transmitting or receiving the discovery signal and the pairing signal based on the D2D request, wherein the device is configured to; determine a resource to receive a pairing signal for the device based on the information associated with the pairing signal, transmit the discovery signal including information related to the determined resource to receive the pairing signal for the device within a first period using the information associated with the discovery signal, and receive the pairing signal for the device from a neighbor device that received the discovery signal, the pairing signal for the device received within a second period using a resource determined based on the information related to the determined resource to receive the pairing signal for the device, and wherein the resource for transmitting the pairing signal for e device is selected based on at least one signal received by the neighbor device during the first period. - View Dependent Claims (20)
-
Specification