Fast retry of transmitting random access preamble using bitmap information
First Claim
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1. A method of communicating data in a wireless communications system, the method comprising:
- receiving, by a mobile terminal, first control information;
transmitting, by the mobile terminal, a first random access preamble;
receiving, by the mobile terminal, second control information via a control channel within a time window;
determining, by the mobile terminal, whether a group including the transmitted first random access preamble is matched with a group indicated by the received second control information, the group including the transmitted first random access preamble classified by the first control information; and
transmitting, by the mobile terminal, a second random access preamble according to the determination.
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Abstract
A fast retry of transmitting a random access preamble by determining an existence of a random access response during a random access procedure in an Evolved Universal Mobile Telecommunications System (E-UMTS) evolved from Universal Mobile Telecommunications System (UMTS) or a Long Term Evolution System (LTE).
18 Citations
15 Claims
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1. A method of communicating data in a wireless communications system, the method comprising:
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receiving, by a mobile terminal, first control information; transmitting, by the mobile terminal, a first random access preamble; receiving, by the mobile terminal, second control information via a control channel within a time window; determining, by the mobile terminal, whether a group including the transmitted first random access preamble is matched with a group indicated by the received second control information, the group including the transmitted first random access preamble classified by the first control information; and transmitting, by the mobile terminal, a second random access preamble according to the determination. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A mobile terminal comprising:
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a transceiver configured to transmit or receive data; a memory configured to store the data transmitted or received via the transceiver or from an external source; and a processor configured to cooperate with the transceiver and the memory and further configured to; receive first control information; transmit a first random access preamble; receive second control information via a control channel within a time window; determine whether a group including the transmitted first random access preamble is matched with a group indicated by the received second control information, the group including the transmitted first random access preamble classified by the first control information; and transmit a second random access preamble according to the determination.
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Specification