摘要:
Disclosed is a method for controlling uplink transmission power in a handover region by a UE in communication with a Node B using an FCS scheme. The UE stores TPC commands received for a specific duration from a plurality of cells in an active set, if the UE enters in the handover region during communication with a current best cell. If a next best cell is selected from the plurality of the cells, the UE determines a transmission power offset by comparing TPC commands from the current best cell with TPC commands from the next best cell for the specific duration at a time point where the best cell is changed from the current best cell to the next best cell. The UE transmits initial transmission power for the next best cell at a transmission power level determined considering the transmission power offset.
摘要:
A device and method for configuring an UL-DPCCH. One or more UL-DPCCHs, especially a UL-DPCCH for supporting HSDPA, are constructed in code division multiplexing and transmitted according to the characteristics of control information. The UL-DPCCH of the present invention that delivers various kinds of control information can be configured flexibly and operate in compatibility with a conventional asynchronous mobile communication system.
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:
The present invention relates to a system for gating a dedicated physical control channel in a mobile communication system. A UTRAN (UMTS Terrestrial Radio Access Network) transmits a gating start command or a gating end command to a UE (User Equipment) through a specific transport format combination indicator symbol according to whether there exists data transmitted over a downlink physical shared channel and a dedicated physical data channel, thereby to start or end gating the dedicated physical control channel.
摘要:
A communication system supporting an HSDPA (High-Speed Downlink Packet Access) service. In order to transmit common information to at least two UEs (User Equipments) among a plurality of UEs supporting the HSDPA service, the system transmits control information including common ID information indicating the common information over a shared control channel (SHCCH), upon generation of the common information. The system transmits the common information over the SHCCH in a TTI (Transmission Time Interval) equal to or after a TTI where the control information is transmitted, so that the UEs can support the HSDPA service using the common information.
摘要:
There is provided a method for allocating channel numbers to channel signals by a Node B, which repeatedly transmits a stream of n channel signals to a UE (User Equipment), each of the channel signals including a channel number and transmission data, the n channel signals having (n+1) different channel numbers, each channel having a given transmission time interval (TTI). The method comprises storing channel numbers of the n channel signals in a transmission window, and updating channel numbers such that n channel numbers are stored each time channel signals are transmitted; and allocating the same channel number as a channel number used for initial transmission to a channel signal to be transmitted if the channel signal to be transmitted is a retransmission channel signal, and allocating a channel number not belonging to the transmission window among the (n+1) channel numbers to a channel signal to be transmitted if the channel signal to be transmitted is an initial-transmission channel signal.
摘要:
A method for providing soft handover in a code division multiple access mobile communication system supporting multicast multimedia broadcast service. In an asynchronous mobile communication system supporting an MBMS service, when a UE moves to a region where it can receive data from a plurality of Node Bs, soft handover is performed on the UE. Thus, even though an MBMS user moves from an existing cell to a new cell, a stable MBMS service is provided. Furthermore, the UE can soft-combine data received from a plurality of Node Bs.
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.
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:
An encoding method and apparatus for a DCH (Dedicated Channel) encoder and a DSCH (Downlink Shared Channel) encoder in a transmitter for a mobile communication system including the DCH encoder for encoding k bits among 10 input TFCI (Transport Format Combination Indicator) bits and the DSCH encoder for encoding remaining (10-k) bits among the input TFCI bits. The method comprises generating, by the DCH encoder, a first coded bit stream by encoding the k input bits into 32 bits, and outputting a (3k+1)-bit stream by puncturing the first coded bit stream according to a specific mask pattern corresponding to the k value; and generating, by the DSCH encoder, a second coded bit stream by encoding the (10-k) input bits into 32 bits, and outputting a {3*(10-k)+1}-bit stream by puncturing the second coded bit stream according to a specific mask pattern corresponding to the (10-k) value.