摘要:
Disclosed is an apparatus and a method for allocating persistent resources in order to support a packet service in a mobile communication system. The method includes acquiring scheduling information including an allocation period of a persistent resource corresponding to a predetermined packet state in a process of call setup between the communication apparatus and the Node B; receiving an allocation period and a size of a persistent resource to be allocated based on the packet state; and receiving a packet through the allocated persistent resource.
摘要:
A method and apparatus for performing Automatic Retransmission reQuest (ARQ) on packet data in a mobile communication system. The method includes receiving from a transmission entity performing ARQ, by a reception entity, a status report message including a Non-Acknowledged (NACK) signal for the packet data transmitted to the reception entity, and generating time information of the NACK signal; comparing, by the transmission entity, the generation time information with transmission complete time information for the packet data; and determining whether to retransmit the packet data depending on the comparison result, and performing retransmission of the packet data according to the determination step.
摘要:
A method for transmitting a random access preamble using a random access procedure in a mobile communication system. The random access preamble transmission method includes selecting, upon triggering of the random access procedure, one of random access preamble sets predefined between a User Equipment (UE) and an Evolved Node B (ENB) according to whether a radio channel condition is greater than a radio channel condition threshold and a size of a message that the UE will transmit after transmission of the random access preamble is greater than a minimum message size, randomly selecting a random access preamble from the selected random access preamble set, and transmitting the selected random access preamble to the ENB over a random access channel.
摘要:
A method for transmitting a random access preamble using a random access procedure in a mobile communication system. The random access preamble transmission method includes selecting, upon triggering of the random access procedure, one of random access preamble sets predefined between a User Equipment (UE) and an Evolved Node B (ENB) according to whether a radio channel condition is greater than a radio channel condition threshold and a size of a message that the UE will transmit after transmission of the random access preamble is greater than a minimum message size, randomly selecting a random access preamble from the selected random access preamble set, and transmitting the selected random access preamble to the ENB over a random access channel.
摘要:
A method and an apparatus for performing Hybrid Automatic Repeat reQuest (HARQ) of a packet in a mobile communication system. A User Equipment (UE) receives transmission resource allocation information indicating a transmission resource for uplink packet transmission and indicating a valid duration of the transmission resource, from a Node B over a downlink control channel, and transmits an HARQ packet using the transmission resource through an HARQ operation for the valid duration. The Node B transmits the transmission resource allocation information to the UE over the downlink control channel, and receives the HARQ packet through the HARQ operation using the transmission resource for the valid duration.
摘要:
Disclosed is a method and apparatus for transmitting an uplink scheduling request in a mobile communication system. A radio resource controlling node sets a priority for scheduling request retransmission, and cyclically notifies the priority in downlink. A terminal does not retransmit a scheduling request when the highest priority included in the scheduling request to be retransmitted is lower than the lowest priority for scheduling request retransmission. Alternatively, the radio resource controlling node sets scheduling request retransmission cycles (timers) according to priorities, and transmits the cycles in the downlink. The terminal does not retransmit a scheduling request before a cycle (timer) corresponding to the highest priority included in the scheduling request expires after the scheduling request is initially transmitted or retransmitted.
摘要:
A method and terminal apparatus for transmitting a status report comprising a received status of packet data in a mobile communication system are provided, in which whether transmission of an implicit Negative Acknowledge (NACK) signal is required for requesting retransmission of at least one non-received data packet whose sequence number is unidentified is determined, if transmission of the implicit NACK signal is required, the implicit NACK signal including a sequence number of the last packet is generated among successfully received data packets, and a status report including the implicit NACK signal is transmitted to the transmitter, and if transmission of the implicit NACK signal is not required, a status report is transmitted to the transmitter including at least one of an ACK signal comprising a sequence number of a successfully received data packet and an explicit NACK signal comprising a sequence number of a non-received data packet whose sequence number is identified.
摘要:
A method and apparatus for transmitting a packet in a mobile communication system. A transmitting side allocates a short sequence number for an initial transmission packet using some bits among bits of a predetermined length for expressing a sequence number of the packet, and sets a first flag indicating use of the short sequence number. The transmitting side inserts the short sequence number and the first flag into the packet, and transmits the packet to a receiving side.
摘要:
Disclosed is a method and apparatus for transmitting/receiving a packet in a mobile communication system. When upper layer packets are multiplexed into a packet whose overall size is informed via a separate path, the size of the upper layer packet is not signaled if it can be calculated from the overall size of the packet, so that the size a packet transmitted/received over a radio channel can be reduced.
摘要:
Disclosed is a method and apparatus for transmitting/receiving a packet in a mobile communication system. When upper layer packets are multiplexed into a packet whose overall size is informed via a separate path, the size of the upper layer packet is not signaled if it can be calculated from the overall size of the packet, so that the size a packet transmitted/received over a radio channel can be reduced.