Method and apparatus for allocating uplink resource in wireless communication system

A method for allocating uplink (UL) resources in a wireless communication system supporting a specific service, the method being performed by a user equipment (UE) and comprising:

• transmitting a radio resource control (RRC) connection request message comprising an UL resource request information element (IE) for requesting an UL resource grant to an evolved nodeB (eNB), the UL resource request IE comprising a UE capability type field associated with a point of time at which UL resources requested by the UE are allocated;
• receiving an RRC connection setup message comprising a response to the UL resource request IE from the eNB, the response comprising UL grant offset information indicative of the point of time at which the UL resources requested by the UE are allocated;
• receiving the UL resources allocated by the eNB based on the received UL grant offset information;
• and
• transmitting an RRC connection setup complete message to the eNB through the allocated UL resources.

A method of allocating uplink (UL) resources in a wireless communication system supporting a specific service, the method being performed by a first evolved nodeB (eNB) and comprising:

• receiving an RRC connection reestablishment request message comprising user equipment (UE) ID information from a UE;
• receiving a UE capability information element (IE) comprising a UE capability type field indicative of a capability type of the UE corresponding to the received UE ID information from a second eNB;
• determining an UL grant offset value indicative of a point of time at which UL resources are allocated to the UE by taking into consideration processing delay indicated by a value of the received UE capability type field;
• transmitting an RRC connection reestablishment complete message comprising the determined UL grant offset value to the UE;
• allocating the UL resources to the UE in the determined UL grant offset value;
• and
• receiving an RRC connection reestablishment complete message from the UE through the allocated UL resources.

A user equipment (UE) for allocating uplink (UL) resources in a wireless communication system supporting a specific service, the UE comprising:

• a communication unit transmitting and receiving radio signals to and from an outside;
• and
• a processor functionally coupled to the communication unit,
• wherein the processor performs control so that a radio resource control (RRC) connection request message comprising an UL resource request information element (IE) for requesting an UL resource grant is transmitted to an evolved nodeB (eNB), the UL resource request IE comprising a UE capability type field associated with a point of time at which UL resources requested by the UE are allocated, an RRC connection setup message comprising a response to the UL resource request IE is received from the eNB, the response comprising UL grant offset information indicative of the point of time at which the UL resources requested by the UE are allocated, the UL resources allocated by the eNB are received based on the received UL grant offset information, and an RRC connection setup complete message is transmitted to the eNB through the allocated UL resources.

A method for allocating uplink (UL) resources in a wireless communication system supporting a specific service, the method being performed by an evolved nodeB (eNB) and comprising:

• receiving a radio resource control (RRC) connection request message comprising an UL resource request information element (IE) for requesting an UL resource grant from a user equipment (UE), the UL resource request IE comprising a UE capability type field associated with a point of time at which the eNB allocates UL resources to the UE;
• determining an UL grant offset value indicative of the point of time at which the UL resources are allocated to the UE by taking into consideration processing delay indicated by a value of the received UE capability type field;
• transmitting an RRC connection setup message comprising the determined UL grant offset value to the UE;
• allocating the UL resources to the UE in the determined UL grant offset value;
• and
• receiving an RRC connection setup complete message from the UE through the allocated UL resources.