摘要:
Provided is a resource allocation method that considers frequency scheduling gain and frequency diversity gain when uplink packet data is transmitted in a wireless communication system based on Orthogonal Frequency Division Multiplexing (OFDM). A method is provided in which Localized Frequency Division Multiple Access (LFDMA) technology capable of obtaining the frequency scheduling gain and Distributed Frequency Division Multiple Access (DFDMA) technology capable of obtaining the frequency diversity gain are mixed. A method is provided which signals sub-carrier sets mapped to the DFDMA and LFDMA, to terminals.
摘要:
Provided is a resource allocation method that considers frequency scheduling gain and frequency diversity gain when uplink packet data is transmitted in a wireless communication system based on Orthogonal Frequency Division Multiplexing (OFDM). A method is provided in which Localized Frequency Division Multiple Access (LFDMA) technology capable of obtaining the frequency scheduling gain and Distributed Frequency Division Multiple Access (DFDMA) technology capable of obtaining the frequency diversity gain are mixed. A method is provided which signals sub-carrier sets mapped to the DFDMA and LFDMA, to terminals.
摘要:
A method and apparatus selects serving scheduling Node B for efficiently controlling and scheduling uplink traffic transmission from user equipments (UEs) located in a soft handover region. The UE selects a serving scheduling cell among cells included in its active set and transmits information on the selected serving scheduling cell to a Node B through uplink signaling. A service scheduling cell and non-serving scheduling cells efficiently control uplink traffic from the UE through independent scheduling. The efficient use of uplink resources contributes to an increase in the entire system performance and system stability.
摘要:
Disclosed is a power setup method for minimizing a delay time caused by an HARQ of an E-DCH when an MAC-e PDU comprising scheduling information required for using a Node B controlled scheduling is transmitted in environments supporting a packet data service through the E-DCH in an asynchronous code division multiple access (CDMA) communication system. A user equipment (UE) generates packet data for transmitting through the E-DCH, determines if signaling information is included in Quality of Service (QoS) of the packet data and the packet data, sets a power gain preset according to each QoS of the packet data, applies a determined offset value to the set power gain when the signaling information is included in the packet data, and transmits the packet data through the E-DCH according to the power gain to which the offset value has been applied.
摘要:
A mobile communication system using an enhanced uplink dedicated transport channel transmits data at a relatively low effective data rate through autonomous transmission. Data transmission time points for user equipments (UEs) have different values in the autonomous transmission and therefore uplink interference is reduced. An autonomous transmission period N and the number of autonomous transmissions k are determined such that each UE performs the autonomous transmission. A Node B and each UE are notified of possible autonomous transmission time points based on the determined autonomous transmission period N and the determined number of autonomous transmissions k through signaling. The UE transmits the uplink data without the Node B's scheduling at the possible autonomous transmission time points.
摘要:
A method and apparatus are provided for scheduling uplink data transmission in a mobile communication system. The method and apparatus include a base station scheduler for efficiently allocating radio communication resources in a mobile communication system using an E-DCH or DCH. The method and apparatus further include a User Equipment (UE) for using both an E-DCH and a conventional DCH to efficiently select the data rate of the E-DCH and the data rate of the conventional DCH. The method and apparatus can maintain the total transmit power of the UE at the time of retransmission the same as the total transmit power of the UE at the time of initial transmission regardless of the existence or absence of the DCH, thereby minimizing the change in the quantity of interference generated in the uplink by the UE.
摘要:
A mobile communication system using an enhanced uplink dedicated transport channel transmits data at a relatively low effective data rate through non-scheduled transmission. Data transmission time intervals for user equipments (UEs) have different values in the non-scheduled transmission and therefore uplink interference is reduced. An non-scheduled transmission period N and the number of non-scheduled transmissions k are determined such that each UE performs the non-scheduled transmission. A Node B and each UE are notified of possible non-scheduled transmission time intervals based on the determined non-scheduled transmission period N and the determined number of non-scheduled transmissions k through signaling. The UE transmits the uplink data without the Node B's scheduling at the possible non-scheduled transmission time intervals.
摘要:
Methods and apparatus are provided for communication between a User Equipment (UE) and a Node B in a communication system. The UE generates a Media Access Control-Protocol Data Unit (MAC-PDU) including scheduling information having information representing an amount of packet data to be transmitted. The MAC-PDU including the scheduling information is transmitted to the Node B. The information representing the amount of packet data exists per priority queue.
摘要:
An RNC determines parameters available for measurement of a synchronization signal and second Node B information from a second Node B, transmits the determined parameters to a first Node B during radio link setup and to a UE during radio bearer setup, and transmits parameter selection information to the first Node B and the UE, if it is recognized that measurement of the synchronization signal and the second Node B information is necessary. The first Node B changes a position of a downlink time period over which a downlink channel is transmitted from the first Node B to the UE and a position of an uplink time period over which an uplink channel is transmitted from the UE to the first Node B, according to parameters selected from the parameters. The UE receives the synchronization signal and the second Node B information in the remaining time periods except the changed downlink time period and the changed uplink time period among the plurality of time periods.
摘要:
A radio network controller (RNC) transmits a power offset for controlling transmission power of an uplink high-speed dedicated physical control channel (HS-DPCCH) when a user equipment (UE) enters a handover region, in a mobile communication system including the RNC, a Node B connected to the RNC, and the UE located in one of at least two cell areas occupied by the Node B. The Node B transmits data to the UE over a high-speed downlink shared channel (HS-DSCH) and the UE transmits information indicating reception of the data to the Node B over the uplink HS-DPCCH. The RNC informs the UE of a power offset for determining a transmission power increment of the uplink HS-DPCCH, if it is determined that the UE is located in the handover region. The RNC informs the Node B of the power offset so that the Node B can determine a threshold value for determining information indicating reception of the data, depending on the power offset.