Abstract:
단말의 상태를 제어하는 장치 및 방법이 개시된다. 단말의 상태는 연결 상태와 휴지 상태를 포함하고, 연결 상태는 활성 상태와 휴면 상태를 포함한다. 그리고 활성 상태는 스케줄링 상태와 스케줄링 제외 상태를 포함한다. 상태 제어 장치의 무선 자원 제어(Radio Resource Control, RRC) 계층은 활성 상태와 휴면 상태 사이의 천이를 제어하고, 상태 제어 장치의 매체 접근 제어(Media Access Control, MAC) 계층은 스케줄링 상태와 스케줄링 제외 상태 사이의 천이를 제어한다. 서비스 품질, 활성 상태, 휴면 상태, 휴지 상태, 스케줄링
Abstract:
본 발명은 이동 통신 시스템에서의 프리앰블 할당 방법 및 임의 접속 방법에 관한 것이다. 본 발명에서는 특정 이동국들에게 임의 접속을 시작하기 전에 프리앰블 자원들 중에서 하나의 자원을 미리 할당한다. 이동국들은 미리 할당받은 프리앰블 자원을 토대로 하는 프리앰블을 기지국으로 전송하면서 임의 접속을 요청한다. 따라서 다른 이동국이 동일한 프리앰블을 전송함에 따라 발생되는 충돌을 방지할 수 있다. 프리앰블, 예약할당, 패킷, OFDM
Abstract:
PURPOSE: A method for transmitting data in a wireless communication system including a relay is provided to determine frame configuration and transmission timing of a backhaul downlink and a backhaul uplink in consideration of at least one of transceiving switching time and signal transmitting time to transceive data, thereby effectively transceiving data between the relay and the base station in the wireless communication system. CONSTITUTION: A base station transmits a backhaul downlink signal according to frame configuration of backhaul downlink and timing of the backhaul downlink determined in consideration of at least one of transceiving switching time and signal transmitting time of a relay station. The relay receives the backhaul downlink signal according to the frame configuration of the backhaul downlink and the timing.
Abstract:
PURPOSE: A device and a method for transmitting a relay-synchronization signal in an LTE-A system based on orthogonal frequency division with a multi hop relay are provided to prevent complexity for detecting an R-SS(Relay-Synchronization Signal) from drastically increasing. CONSTITUTION: An SS generating unit(610) generates an SS. The SS comprises an SSS(Secondary Synchronization Signal) and a PSS(Primary Synchronization Signal) synchronized with a terminal. An R-SS generating unit(620) generates an R-PSS(Relay-Primary Synchronization Signal) using a PSS. An R-PSS has the same PAPR(Peak-to-Average Power Ratio) property as the PSS. The R-PSS includes a low correlation property.
Abstract:
A random access method is provided to prevent the HARQ acknowledgement channel collision generated because a base station does not distinguish a terminal using the same preamble when the terminal performs the random access procedure to the base station. A base station transmits a response message to a downlink control information and preamble to a mobile station(S102,S103). The mobile station transmits an access request message to the base station(S104). The base station transmits an HARQ acknowledgement message to the mobile station(S105), and then assigns an acknowledgement channel to the mobile station(106). The base station transmits the downlink control information and a connection establishment message to the mobile station(S107,S108). The mobile station transmits the HARQ acknowledgement message to the base station through the acknowledgement channel(S109).
Abstract:
A transmission method and a receiving method of control information capable of transmitting control information by using a control channel block while minimizing the consumption of the control channel block are provided to transmit the control information necessary between media access control layers of the mobile terminal and a base station in a packet based mobile communications system and to reduce consumption of the control channel block. A control channel block(CB) including control information for controlling a terminal and identifying information for classifying the control information transmitted to the terminal is configured. The comprised control channel block is coded by a channel and transmitted. The control channel block includes error correction code information. The terminal decodes the control channel block.
Abstract:
A paging information transmission method and a paging method in a mobile communication system are provided to transmit paging information to MSs(Mobile Stations) that does not maintain uplink synchronization to allow the MSs to perform paging based on the paging information. A BS(Base Station)(100) checks whether there is packet data or a control message to be transmitted to an MS(S100). When there is packet data or a control message, the BS checks whether the MS maintains uplink physical layer synchronization(S110). If the MS maintains the uplink physical layer synchronization, the BS configures radio resource allocation information for transmission of packet information by using an identifier of the MS(S120). The BS transmits the radio resource allocation information via a physical layer control channel and transmits a packet data block via downlink radio resource(S130). the MS searches whether the radio resource allocation information exists in a physical layer control channel(S140). If there is radio resource allocation information, the MS receives a packet data block transmitted by the BS(S150-S160). The MS generates HARQ(Hybrid Automatic Retransmit reQuest) response information and transmits it to the BS(S170,S180).
Abstract:
A method for control information transmission to downlink in a packet-based cellular system and a method for receiving the control information are provided to enable a BS(Base Station) to configure efficiently uplink control information to be transmitted to a terminal and transmit the uplink control information to the terminal while sharing the minimum radio resource, thereby maximizing the use of limited radio resource. A method for transmitting downlink data generation indication information(20) comprises the following steps of: generating the downlink data generation indication information; recording radio resource allocation information(13) within downlink scheduling information(12) in order to transmit the downlink data generation indication information and allocating information for the downlink data generation indication information to downlink-shared radio resource(25-1,25-2); and transmitting the downlink scheduling information and the information for the downlink data generation indication information according to a transmission period.
Abstract:
A power-saving operation method for UEs(User Equipments) in a cellular system is provided to effectively reduce the power consumption of a UE by controlling power-saving operation of the UE in an active state by using an indicator which indicates whether the power-saving operation is required. A node B sets up power-saving parameters according to the QoS of a packet service and transmits them to a UE together with system information which is transmitted through a broadcast channel(S311). If packet data are generated, the node B and the UE attempt associated services(S312). Then, the node B transits the UE to an active state(S313). The UE, entering into the active state, works in a transmission mode(S314). At this moment, the node B and the UE execute a session setup process through negotiations(S315). Then, the UE reports a preferring power-saving indicator value to the node B according to its power setup environment(S316). The node B determines a power-saving indicator value to be applied to the UE in consideration of the reported power-saving indicator value and its environment(S317). In case the power-saving indicator is set to "ON", the node B determines power-saving parameters through negotiations with the UE(S318). The UE transfers to a transmission stop mode, and executes the power-saving operation according to the determined power-saving parameters(S319).
Abstract:
PURPOSE: A device for controlling a reverse multichannel by using a chip offset value and a method therefor are provided to store terminal information to be processed, in a queue according to an arranged state according to the chip offset value, and to control terminals in order of the queue, thereby reducing the possibility of failure to control the terminal information. CONSTITUTION: A demodulator(130) receives terminal information from at least one user terminal(100), and demodulates the information. The first storage(140) stores a demodulated signal for a predetermined time. A demultiplexer(170) inputs multiplexed information from the first storage(140), and demultiplexes the information. A decoder(180) inputs the demultiplexed information to decode the information, and transmits the decoded information to an upper layer(120). The second storage displays a processing result of the terminal information in check bits, and arranges the terminal information according to a chip offset value, then stores the arranged information. A controller(190) controls the demultiplexer(170) and the decoder(180) to process undisposed terminal information.