Method for operating a fast random access procedure in a wireless communication system and a device therefor
AssigneeLG Electronics Inc.
InventorsSunyoung Lee, Seungjune Yi
Life of this patent
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Abstract
The present invention relates to a wireless communication system. More specifically, the present invention relates to a method and a device for operating fast random access procedure in a wireless communication system, the method comprising: transmitting a RAP including a first RAP ID to an e-NodeB; starting monitoring a Physical Downlink Control Channel PDCCH addressed by RA-RNTI during RAR window; receiving, from the eNB, an indicator including at least one RAP ID, wherein one of the at least one RAP ID matches to the first RAP ID; and stopping monitoring the PDCCH addressed by RA-RNTI upon reception of the indicator.
Claims10
A method for a User Equipment (UE) operating in a wireless communication system, the method comprising:
- transmitting a Random Access Preamble (RAP) including a first RAP identifier (ID) to a network;
- starting monitoring of a Physical Downlink Control Channel (PDCCH) addressed by a Random Access-Radio Network Temporary identifier (RA-RNTI) during a Random Access Response (RAR) window;
- receiving, from the network, an indicator including the first RAP ID;
- and
- stopping monitoring of the PDCCH addressed by the RA-RNTI upon receiving the indicator before an end of the RAR window,
- wherein the indicator is received using a Medium Access Control (MAC) Protocol Data Unit (PDU),
- wherein the MAC PDU contains a MAC header, the indicator, and a RAR,
- wherein the indicator includes information on that a transmission of the RAP from the UE was unsuccessful, and
- wherein the RAR includes information on that a transmission of a RAP from another UE was successful.
A method for a User Equipment (UE) operating in a wireless communication system, the method comprising:
- transmitting a Random Access Preamble (RAP) including a first RAP identifier (ID) to a peer device;
- monitoring a control channel for receiving an indicator during a Random Access Response (RAR) window;
- receiving, from the peer device, the indicator including the first RAP ID;
- and
- stopping monitoring of the control channel upon receiving the indicator before an end of the RAR window,
- wherein the indicator is received using a Medium Access Control (MAC) Protocol Data Unit (PDU),
- wherein the MAC PDU contains a MAC header, the indicator and a RAR,
- wherein the indicator includes information on that a transmission of the RAP from the UE was unsuccessful, and
- wherein the RAR includes information on that a transmission of a RAP from another UE was successful.
A User Equipment (UE) operating in a wireless communication system, the UE comprising:
- a receiver and transmitter;
- and
- a processor, operatively coupled to the receiver and transmitter,
- wherein the processor is configured to:
- control the transmitter to transmit a Random Access Preamble (RAP) including a first RAP identifier (ID) to a network;
- start monitoring of a Physical Downlink Control Channel (PDCCH) addressed by a Random Access-Radio Network Temporary identifier (RA-RNTI) during a Random Access Response (RAR) window;
- control the receiver to receive, from the network, an indicator including the first RAP ID;
- and
- stop monitoring of the PDCCH addressed by the RA-RNTI upon receiving the indicator before an end of the RAR window,
- wherein the indicator is received using a Medium Access Control (MAC) Protocol Data Unit (PDU),
- wherein the indicator is received using a Medium Access Control (MAC) Protocol Data Unit (PDU),
- wherein the MAC PDU contains a MAC header, the indicator, and a RAR,
- wherein the indicator includes information on that a transmission of the RAP from the UE was unsuccessful, and
- wherein the RAR includes information on that a transmission of a RAP from another UE was successful.
Dependencies are inferred from the claim text.