Method for re-direction of uplink access
First Claim
1. A method for a random access procedure by a terminal in a mobile communication system, the method comprising:
- transmitting a first random access preamble to a network;
receiving from the network, in response to the first random access preamble, a random access response message comprising wait time information through a downlink shared channel (DL-SCH),wherein a control channel associated with the DL-SCH is used to receive the random access response message through the DL-SCH, and wherein the control channel is different from a broadcast channel,wherein a random access response reception is considered not successful after receiving the random access response message; and
transmitting a second random access preamble to the network after a certain amount of time that is based on the wait time information received through the random access response message.
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Abstract
A method for prompt re-direction of uplink access of a specific user equipment is disclosed. For initial random access to a network, if a user equipment transmits a preamble, which includes information related to random access, to a network node, the network node sends grant/rejection information of the preamble and re-direction information as a response message to the preamble. In comparison with the related art which controls a rush of an access request of the user equipment through a second response message from the network node, since the rush of an access request is controlled by a first response message in the present invention, it is possible to promptly deal with abnormal communication status, thereby improving communication efficiency.
70 Citations
15 Claims
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1. A method for a random access procedure by a terminal in a mobile communication system, the method comprising:
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transmitting a first random access preamble to a network; receiving from the network, in response to the first random access preamble, a random access response message comprising wait time information through a downlink shared channel (DL-SCH), wherein a control channel associated with the DL-SCH is used to receive the random access response message through the DL-SCH, and wherein the control channel is different from a broadcast channel, wherein a random access response reception is considered not successful after receiving the random access response message; and transmitting a second random access preamble to the network after a certain amount of time that is based on the wait time information received through the random access response message. - View Dependent Claims (2, 3, 4, 5, 6, 13, 14, 15)
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7. A method for a random access procedure in a mobile communication system, the method comprising:
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receiving a first random access preamble from at least one terminal; and transmitting to the at least one terminal, in response to the first random access preamble, a random access response message comprising wait time information through a downlink shared channel (DL-SCH), wherein a control channel associated with the DL-SCH is used to transmit the random access response message through the DL-SCH, wherein the control channel is different from a broadcast channel, wherein a random access response reception is considered not successful after transmitting the random access response message, and wherein the wait time information, transmitted through the random access response message, is used for the at least one terminal to determine a certain amount of time for delaying a transmission of a second random access preamble. - View Dependent Claims (8, 9, 10, 11, 12)
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Specification