Method and apparatus for controlling inter-cell collision in wireless communication system
The present invention relates to a wireless communication system, and more specifically, a method and an apparatus for controlling an inter-cell collision are disclosed. A method for transmitting collision information from a transmission/reception apparatus, which is connected to first and second base stations, according to one embodiment of the present invention, comprises the following steps: obtaining a first scheduling information, generated by the first base station, with regard to a first user equipment, and a second scheduling information, generated by the second base station, with regard to a second user equipment; generating the collision information based on the first scheduling information and the second scheduling information which are obtained; and transferring the collision information to the first and second base stations.
1. A method for transmitting collision information at a transceiver connected to a first eNB and a second eNB, the method comprising:
obtaining first scheduling information, generated by the first eNB, with regard to a first user equipment (UE), and second scheduling information, generated by the second eNB, with regard to a second UE;
generating the collision information based on the obtained first scheduling information and second scheduling information; and
transmitting the collision information to the first eNB and the second eNB.
2. The method according to claim 1 , wherein the first scheduling information includes one or more of downlink transmission resource allocation information and uplink transmission resource allocation information about the first UE and the second scheduling information includes one or more of downlink transmission resource allocation information and uplink transmission resource allocation information about the second UE.
3. The method according to claim 1 , wherein the collision information transmitted to the first eNB includes the second scheduling information and the collision information transmitted to the second eNB includes the first scheduling information.
4. The method according to claim 1 , wherein the collision information includes one or more of information indicating whether or not resources scheduled by the first and second eNBs collide with each other, information indicating the resources colliding each other and information indicating the first and second UEs.
5. The method according to claim 1 , wherein the collision information includes updated first scheduling information and updated scheduling information, generated by the transceiver, when resources scheduled by the first and second eNBs collide with each other.
6. The method according to claim 1 , wherein the obtaining of the scheduling information is performed within a predetermined time range including one or more of a time at which the first scheduling information is transmitted to the first UE and a time at which the second scheduling information is transmitted to the second UE.
7. The method according to claim 1 , wherein the transmitting of the collision information is performed within a predetermined time range including one or more of a time at which transmission from the first UE to the first eNB is performed and a time at which transmission from the second UE to the second eNB is performed.
8. The method according to claim 7 , wherein transmission from the first UE or the second UE corresponds to transmission of ACK/NACK information on downlink data or uplink data transmission based on uplink scheduling information.
9. The method according to claim 1 , further comprising:
overhearing one or both of a downlink signal transmitted from the first or second eNB and an uplink signal transmitted from the first or second UE; and
reporting information indicating whether or not overhearing has been successfully performed to one or both of the first and second eNBs.
10. The method according to claim 1 , wherein the overheard downlink signal is retransmitted to one or both of the first and second UEs and the overheard uplink signal is retransmitted to one or both of the first and second eNBs.
11. The method according to claim 1 , wherein scheduling information updated by each of the first and second eNBs is generated based on the collision information.
12. The method according to claim 1 , wherein acquisition of the first scheduling information and the second scheduling information and transmission of the collision information are performed through wired connection between the transceiver and the first and second eNBs.
13. A transceiver connected to a first eNB and a second eNB, comprising:
a transmission/reception module for transmitting/receiving a signal to/from an external device; and
a processor for controlling the transceiver,
wherein the processor is configured to obtain first scheduling information, generated by the first eNB, with regard to a first UE, and second scheduling information, generated by the second eNB, with regard to a second UE, to generate collision information based on the obtained first scheduling information and second scheduling information and to transmit the collision information to the first eNB and the second eNB.