Method and device for transceiving wireless signal in wireless communication system
The present invention relates to a wireless communication system and particularly to a method and a device for the method, the method comprising: a step of receiving data on a competition-based resource pool; a step of selecting, based on the size of the data, N number of competition-based resources from a plurality of competition-based resources constituting the competition-based resource pool; and a step of transmitting the data to a base station by using the N number of competition-based resources, wherein N is indicated via a reference signal transmitted along with the data.
1. A method of transmitting data at a user equipment (UE) in a wireless communication system, the method comprising:
receiving information about a contention-based resource pool;
selecting N contention-based resources from among a plurality of contention-based resources included in the contention-based resource pool, based on a size of the data, wherein a contention-based resource is a unit in which one or more UEs perform contention-based transmission; and
transmitting the data and a reference signal for the data to a base station (BS) in the N contention-based resources, wherein N is a variable integer of 1 or more, and indicated by a seed value used for scrambling the reference signal transmitted along with the data.
2. The method according to claim 1 , wherein the reference signal is generated based on a Zadoff-Chu (ZC) sequence or a constant amplitude zero auto-correlation (CAZAC) sequence, and N is indicated by a root index used for generating the reference signal.
3. The method according to claim 1 , wherein N is indicated by a length of a sequence used to configure the reference signal.
4. The method according to claim 1 , wherein N is limited to 2 n where n is an integer equal to or larger than 0.
5. The method according to claim 1 , wherein each of the N contention-based resources carries data including the same UE identification information.
6. The method according to claim 1 , wherein the wireless communication system includes a 3 rd generation project partnership long term evolution (3GPP LTE)-based wireless communication system.
7. A user equipment (UE) for use in a wireless communication system, the UE comprising:
a radio frequency (RF) module; and
a processor,
wherein the processor is configured to receive information about a contention-based resource pool, to select N contention-based resources from among a plurality of contention-based resources included in the contention-based resource pool, based on a size of data, and to transmit the data and a reference signal for the data to a base station (BS) in the N contention-based resources, and
a contention-based resource is a unit in which one or more UEs perform contention-based transmission, N is a variable integer of 1 or more, and indicated by a seed value used for scrambling the reference signal transmitted along with the data.
8. The UE according to claim 7 , wherein the reference signal is generated based on a Zadoff-Chu (ZC) sequence or a constant amplitude zero auto correlation (CAZAC) sequence, and N is indicated by a root index used for generating the reference signal.
9. The UE according to claim 1 , wherein N is indicated by a length of a sequence used to configure the reference signal.
10. The UE according to claim 7 , wherein N is limited to 2 n where n is an integer equal to or larger than 0.
11. The UE according to claim 7 , wherein each of the N contention-based resources carries data including the same UE identification information.
12. The UE according to claim 7 , wherein the wireless communication system includes a 3 rd generation project partnership long term evolution (3GPP LTE)-based wireless communication system.