摘要:
A method for transmitting a voice over Internet protocol (VoIP) packet includes allocating a radio resource for VoIP packet transmission to a user, transitioning a VoIP service from a talk period, in which the VoIP packet is transmitted using the radio resource, to a silence period in which the VoIP packet is not transmitted, releasing the radio resource during the silence period, and transitioning the VoIP service to the talk period by reallocating the radio resource. Limited radio resources can be further effectively used.
摘要:
A method of transmitting an uplink (UL) control signal of a relay station is provided. The method includes: configuring a UL relay zone for transmitting a signal by the relay station to a base station in a frame; configuring a resource unit including a plurality of symbols and a plurality of subcarriers to allocate the UL control signal in a subframe of the UL relay zone; and transmitting the UL control signal by using the resource unit, wherein, if a transition gap required for switching of signal transmission and reception of the relay station is included in the subframe, the UL control signal is transmitted in the remaining symbols other than the plurality of symbols constituting the resource unit including the transition gap.
摘要:
A device and method for permuting subcarriers in a subframe which is divided into a plurality of frequency partitions in a wireless mobile communication system is disclosed. The method includes mapping, at a mobile station, physical resource units for localized resource allocation to a frequency partition of the plurality of frequency partitions in units of N_1 number of resource units, and physical resource units for distributed resource allocation to the frequency partition in units of N_d number of resource units, N_1 being different from N_d; and spreading, at the mobile station, subcarriers of the physical resource units for distributed resource allocation across the whole distributed resource allocations.
摘要:
A method for transmitting signal, at a mobile station, in a wireless communication system is provided. Inter-cell interference information may be different for each frequency partition according to using a FFR scheme. Also, a parameter for controlling interference level between base stations may be different for each frequency partition. The present invention is advantageous in that, when uplink transmission is performed, system throughput and cell edge-user throughput are improved and inter-cell interference level control is efficiently performed.
摘要:
A method and apparatus of generating a ranging signal in a wireless communication system is provided. A mobile station (MS) generates a ranging code in which a covering code has been applied to each of a plurality of orthogonal frequency division multiple access (OFDMA) symbols, and maps the ranging code to a plurality of subcarriers constituting each of the OFDMA symbols. The ranging signal is generated by performing OFDMA modulation on each of the OFDMA symbols.
摘要:
A method of performing coordinated communication by a relay station is provided. The method includes: receiving a signal from a terminal; measuring channel state information (CSI) indicating a state of a channel which receives the signal; comparing the CSI with a predetermined threshold to determine whether to decode the received signal; and if it is determined to decode the received signal, removing noise by decoding the received signal, and then performing decode and forward (DAF) in which the signal is re-encoded and transmitted to a base station, and if it is determined not to decode the received signal, performing amplify and forward (AAF) in which the received signal is amplified and forwarded to the base station. The CSI may be at least one of a frame error rate (FER), a bit error rate (BER), a signal to noise ratio (SNR), and a signal to interference plus noise ratio (SINR). Accordingly, a time delay consumed for channel decoding in hybrid DAF coordinated communication can be decreased, data transmission and resource usage can be more effectively achieved in coordinated communication using multiple terminals, and unnecessary power consumption can be decreased.
摘要:
The present invention relates to a method and apparatus for signaling, to user equipment, the number and position of frequency resources allocated to each of the plurality of E-MBS zones, using a zone allocation bitmap including bits corresponding to the number of resources allocated for one or more E-MBS zones. The method and apparatus of the present invention are advantageous in that signaling overheads required for specifying the number and position of frequency resources allocated to each of E-MBS zones can be reduced.
摘要:
A method for transmitting a signal from a mobile station of a multi-cell environment comprises being allocated with a specific frequency partition from a base station depending on a fractional frequency reuse scheme; receiving modulation and coding scheme (MCS) level information on the specific frequency partition or a specific resource region within the specific frequency partition from the base station; controlling transmit power corresponding to the MCS level depending on a location of the mobile station within a cell, if the specific frequency partition is a frequency partition shared with a mobile station located at an edge region of a neighboring cell; and transmitting a signal to the base station at the controlled transmit power.
摘要:
A method for allocating pilot subcarriers in a resource block for a wideband wireless mobile communication system using an orthogonal frequency division multiplexing (OFDMA) modulation is discussed. In this method, pilot subcarriers are allocated in the resource block so that a group of consecutive data subcarriers separated from adjacent other group of consecutive data subcarriers by the pilot subcarriers has even number of subcarriers within an OFDMA symbol.
摘要:
Disclosed are a terminal device for receiving a signal in a wireless communication system for supporting a plurality of component carriers and a method thereof. In the terminal device for receiving the signal in the system for supporting the component carriers, a receiver receives a Physical Downlink Control Channel (PDCCH) including control information of a first type component carrier from a base station or a relay. A processor performs a decoding operation or controls an operation in a slip mode on the basis of control information included in a PDCCH in a second type component carrier after a time corresponding to a particular time offset value passes from a transmission time point of the PDCCH.