Method for operating terminal in accordance with semi-persistent scheduling in wireless communication system, and terminal device using method

1. A method for operating a User Equipment (UE) in a wireless communication system, the method comprising: transmitting, to a base station, information comprising traffic information informing a pattern of traffic related to the UE to assist the base station to configure semi-persistent scheduling (SPS);

receiving, from the base station, an SPS configuration related to the traffic information,

detecting a difference between a resource pattern according to the SPS configuration and a pattern of the traffic generated by the UE; and

transmitting a SPS adjustment request that requests an adjustment of the SPS configuration to a network, based on the difference being a predetermined value or greater,

wherein the traffic information includes i) a periodicity of the traffic related to the UE and ii) a UE-preferred timing adjustment value,

wherein the UE-preferred timing adjustment value comprises a preferred time to delay transmission timing of the UE and a preferred time to advance transmission timing of the UE,

wherein the traffic information further includes offset information that informs timing of the traffic related to the UE,

wherein the offset information is information informing a generation timing of the traffic related to the UE based on a reference timing that the UE and a network commonly know,

wherein the traffic information further includes information informing a final destination of the traffic related to the UE,

wherein the traffic information further includes information informing a latency requirement required in the traffic related to the UE,

wherein the SPS adjustment request requests to advance or delay, in a time domain, resources of the resource pattern that are configured according to the SPS configuration,

wherein the traffic information further includes end-to-end latency requirement of vehicle to vehicle (V2V) traffic, and

wherein the UE transmits the traffic information based on the end-to-end latency requirement being smaller than a value which is configured by the base station.

2. The method of claim 1 , wherein the SPS configuration includes one or more configurations and each of the one or more configurations is a message configuring a plurality of resources which is periodically configured.

3. The method of claim 1 , wherein the reference timing is a first subframe of a frame of which system frame number is zero.

4. The method of claim 1 , wherein the SPS configuration is received through a higher layer message.

5. The method of claim 1 , wherein the SPS adjustment request is included in the traffic information.

6. The method of claim 1 , wherein the SPS adjustment request includes information indicating a resource that the UE is not going to use among resources of the resource pattern that are configured according to the SPS configuration.

7. The method of claim 1 , wherein the SPS adjustment request requests to advance or delay, in a time domain, resources of the resource pattern that are configured according to the SPS configuration.

8. The method of claim 1 , wherein the SPS configuration includes a bitmap, wherein each bit of the bitmap corresponds to each subframe among a plurality of subframes configured by the SPS configuration.

9. The method of claim 8 , wherein each bit of the bitmap represents whether each subframe among the plurality of subframes configured by the SPS configuration is used for a signal transmission of the UE.

10. A User Equipment (UE), comprising:

a transceiver configured to transmit and receive a radio signal; and

a processor configured to operate with being connected to the transceiver,

wherein the processor is configured to perform:

transmitting, to a base station, information comprising traffic information informing a pattern of traffic related to the UE to assist the base station to configure semi-persistent scheduling (SPS); and

receiving, from the base station, an SPS configuration related to the traffic information,

detecting a difference between a resource pattern according to the SPS configuration and a pattern of the traffic generated by the UE; and

transmitting a SPS adjustment request that requests an adjustment of the SPS configuration to a network, based on the difference being a predetermined value or greater,

wherein the traffic information includes i) a periodicity of the traffic related to the UE and ii) a UE-preferred timing adjustment value,

wherein the UE-preferred timing adjustment value comprises a preferred time to delay transmission timing of the UE and a preferred time to advance transmission timing of the UE,

wherein the traffic information further includes offset information that informs timing of the traffic related to the UE,

wherein the offset information is information informing a generation timing of the traffic related to the UE based on a reference timing that the UE and a network commonly know,

wherein the traffic information further includes information informing a final destination of the traffic related to the UE,

wherein the traffic information further includes information informing a latency requirement required in the traffic related to the UE,

wherein the SPS adjustment request requests to advance or delay, in a time domain, resources of the resource pattern that are configured according to the SPS configuration,

wherein the traffic information further includes end-to-end latency requirement of vehicle to vehicle (V2V) traffic, and

wherein the UE transmits the traffic information based on the end-to-end latency requirement being smaller than a value which is configured by the base station.