摘要:
A method for controlling a rate of a voice service in a mobile communication system supporting the voice service via a packet network. The method includes the steps of receiving a control message at a terminal from a radio network controller (RNC); if the control message indicates control of a downlink rate, determining a downlink rate according to the control message; setting a Change Mode Request (CMR) field of an uplink Voice over Internet Protocol (VoIP) packet according to the downlink rate, and transmitting the uplink VoIP packet from the terminal to the RNC; if the received control message indicates control of an uplink rate, determining an uplink rate according to the control message; and generating an uplink VoIP packet including uplink voice data generated according to the determined uplink rate and frame type (FT) information indicating the determined uplink rate, and transmitting the uplink VoIP packet from the terminal to the RNC.
摘要:
A method and apparatus for enabling efficient use of radio resources by reducing an RLC PDU size in a mobile communication system supporting voice service over a packet network are provided. An RLC layer constructs an RLC PDU without inserting information indicating the start and end of an SDU or indicating the use or non-use of padding. The RLC layer sets an LI in a header to indicate inclusion of an intermediate SDU segment in the data field of the RLC PDU. Therefore, the resulting decrease of overhead arising from packet transmission facilitates the efficient use of limited radio resources.
摘要:
A method and an apparatus are provided for performing Automatic Retransmission reQuest (ARQ) in a mobile communication system including an ARQ layer and a Hybrid ARQ (HARQ) layer. The method includes receiving from an ARQ receiving (Rx) entity a status report indicating a reception status of ARQ packets; detecting an ARQ packet having a transmission completion time going ahead of a generation time of the status report, among the ARQ packets whose transmission was completed by an ARQ transmitting (Tx) entity; and retransmitting an ARQ packet not ACK/NACK-ed by the status report, among the detected ARQ packets.
摘要:
A method and apparatus for transmitting/receiving a status report in a mobile communication system where Automatic Repeat reQuest (ARQ) and Hybrid Automatic Repeat reQuest (HARQ) operate together. An ARQ receiving (Rx) entity determines whether transmission of the status report is permitted, if a predetermined status report generation condition is satisfied. If the transmission of the status report is permitted, the ARQ Rx entity generates a status report depending on a reception status of ARQ packets received up to the time the transmission of the status report is permitted, and transmits the generated status report to an ARQ transmitting (Tx) entity through an allocated transmission resource. The ARQ Tx entity determines an initial reception time of an HARQ packet including the status report as a generation time of the status report, and performs retransmission according to the status report.
摘要:
A method and apparatus for reordering data sent from a user equipment (UE). The UE assigns transmission sequence numbers (TSNs) to medium access control (MAC)-e protocol data units (PDUs) through an enhanced uplink dedicated channel (E-DCH). A Node B assigns, to received PDUs, time stamps (TSs) indicating time points when the PDUs are received. Using the TSNs and the TSs, a radio network controller (RNC) solves a problem of PDU disorder due to hybrid automatic retransmission request (HARQ) operations and transfer delay between the Node B and the RNC, and reorders the PDUs.
摘要:
System information is transmitted over an air interface (32) between a node of a telecommunications network and a user equipment unit (30). The system information includes system information blocks which use extended system information block types, e.g., system information block type values which are outside a range of nominal system information block type values. The use of the extended system information block types is facilitated by embodiments of system information extension utility functions at the network node, by method of operating the network nodes, and by corresponding embodiments of system information processing functions provided at the user equipment unit (30).
摘要:
Disclosed is a method for efficiently transmitting and receiving control information messages necessary for a Multimedia Broadcast/Multicast Service (MBMS) provided in a mobile communication system. The method includes setting information elements for the control information messages to reduce unnecessary signaling overhead during the transmission of the control information. The method prevents a user equipment (UE) from performing duplicate reception on the control information, thereby reducing power consumption of a battery.