Abstract: The present document provides a method and system for controlling data transmission of a User Equipment (UE). The method includes: a base station transmitting control information for instructing a first UE to transmit data to a second UE. The present document solves the interference problem in device to device communication and communication in the original network, realizes the direct UE to UE communication and improves spectrum efficiency.

Abstract: The disclosure discloses a method, system and RN for processing UCI on a backhaul link. The method comprises that: the RN determines Q? which is the number of the coded modulation symbols of the backhaul UCI according to the number of SC-FDMA symbols occupied by a GP, wherein the GP comprises RN state switch time deltaT and/or the time interval deltat which is reserved for avoiding the interference caused by RN uplink transmission, and deltaT is the switch time required by the RN to switch from an uplink reception state to an uplink transmission state and/or from the uplink transmission state to the uplink reception state; and the RN codes the backhaul UCI into a Q=Q?×Qm bits sequence, wherein Qm is the number of bits comprised in each coded modulation symbol in the modulation order of the backhaul uplink subframe. The disclosure improves the performance of the system.

Abstract: The embodiments of the present invention disclose a wireless communication method and apparatus. The method includes: a first communication device receiving first grant from a network node, the first grant at least comprising first resource allocation information for allocating resources; the first communication device receiving second grant from a second communication device, the second grant at least comprising a modulation and coding scheme of service data; the first grant and the second grant being used for scheduling service data transmission between the first communication device and the second communication device; and the first communication device receiving, according to the scheduling, service data transmitted by the second communication device; and/or the first communication device transmitting, according to the scheduling, service data to the second communication device.

Abstract: Spatial discrimination information is fed back at both the multi-antenna transmitter and the multi-antenna receiver connecting a UE and cells within a CoMP measurement set. With the UE feeding back the transmitter and the receiver side spatial discrimination information of each cell-to-UE connection, the composite spatial CSI over multiple sites/nodes can be determined. The approach is applicable for UEs with single or multiple receiving antennas, and the spatial discrimination information can be wideband long-term or subband short-term. In some embodiments, the spatial discrimination information at the receiver side is derived from the actual spatial channel while receiver implementation is taken into account. The spatial discrimination information at the transmitter and at the receiver can be fed back using codebooks for MIMO precoding.

Abstract: The present invention discloses a method for indicating and determining relay link boundary and a base station thereof, wherein, the method for indicating relay link boundary includes: the base station indicates the relay link boundary where the relay node is located to the relay node; the relay node determines the relay link boundary according to the indication of the base station. Through the present invention, the utilization rate of the relay link resource can be improved.

Abstract: A method and system for feedback of spatial CSI of a spatial channel that connects receive antennas at user equipment and multiple transmit antennas. Spatial discrimination information is provided as feedback at the transmitter and the receiver connecting the user equipment and a cell. With the user equipment providing the transmitter and the receiver side spatial discrimination information of each sub-channel as feedback, the composite spatial CSI over multiple segments of transmit antennas can be determined. The user equipment may have one or multiple receiving antennas, and the spatial discrimination information can be subband short-term. In some embodiments, the spatial discrimination information at the receiver side is derived from the actual spatial channel while receiver implementation is taken into account. The spatial discrimination information at the transmitter and at the receiver can be can be provided as feedback using codebooks for MIMO precoding.

Abstract: A method and system for feed-back of spatial CSI of an entire spatial channel that connects receive antennas at user equipment and multiple transmit antennas. Spatial discrimination information is provided as feed-back at the transmitter and the receiver connecting the user equipment and a cell. With the user equipment providing the transmitter and the receiver side spatial discrimination information of each sub-channel as feedback, the composite spatial CSI over multiple segments of transmit antennas can be determined. The user equipment may have one or multiple receiving antennas, and the spatial discrimination information can be subband short-term. In some embodiments, the spatial discrimination information at the receiver side is derived from the actual spatial channel while receiver implementation is taken into account. The spatial discrimination information at the transmitter and at the receiver can be can be provided as feedback using codebooks for MIMO precoding.

Abstract: The disclosure provides a method and a device for feeding back Acknowledgment (ACK) information during switching of backhaul link subframe configuration, and the method includes during the switching of the backhaul link subframe configuration, if Uplink (UL) ACK/Negative ACK (NACK) information, which corresponds to a last transmission before the switching of one or more Downlink (DL) Hybrid Automatic Repeat Request (HARQ) transmissions, is not fed back on a UL subframe which is before the switching, feeding back the ACK/NACK information on an available UL subframe which is after the switching since Nms after the last transmission, wherein N is an integer. The disclosure achieves the effect of correctly feeding back the ACK information during switching of the backhaul link subframe configuration.

Abstract: A method and an apparatus for determining a relay link resource element group are disclosed. The method includes: determining a size of a relay link resource element group according to a pattern of a non-zero-power Channel State Information Reference Signal (CSI-RS), and/or a pattern of a zero-power CSI-RS and/or a pattern of a Common Reference Signal (CRS), and/or a pattern of a Demodulation Reference Signal (DMRS) transmitted in a resource block in which the resource element group locates in allocated resources. The allocated resources are used for a transmission over a relay link physical downlink control channel, including one or more continuously or discretely distributed resource blocks in the frequency domain, while including one or more Orthogonal Frequency Division Multiplexing (OFDM) symbols in the time domain.

Abstract: The present invention discloses a transmission method and system for a Relay Physical Downlink Control Channel (R-PDCCH). The method comprises the steps of: an eNB bearing downlink grant information of a relay node onto an available Orthogonal Frequency Division Multiplex (OFDM) symbol of a first slot of a pre-allocated Physical Resource Block (PRB) pair used for bearing the R-PDCCH, wherein available OFDM symbols in the PRB pair, other than the OFDM symbol used for the downlink grant information, are used for bearing a Physical Downlink Shared Channel (PDSCH) of each relay node (S602?); the eNB transmitting the PRB pair bearing the downlink grant information and the PDSCH to the relay node (S604?). The present invention is well applicable to a link between an eNB and a relay node, and meanwhile enables backhaul resources to be used adequately.

Abstract: A spatial channel state information (CSI) feedback technique is incorporated into multiple-input multiple-output mobile communications technologies. Spatial channel state information is measured at receiving equipment and then decomposed into components. The components are then quantized using codebook(s) and fed back as multiple indices to transmitting equipment.

Abstract: The disclosure discloses a method, system and RN for processing UCI on a backhaul link. The method comprises that: the RN determines Q? which is the number of the coded modulation symbols of the backhaul UCI according to the number of SC-FDMA symbols occupied by a GP, wherein the GP comprises RN state switch time deltaT and/or the time interval deltat which is reserved for avoiding the interference caused by RN uplink transmission, and deltaT is the switch time required by the RN to switch from an uplink reception state to an uplink transmission state and/or from the uplink transmission state to the uplink reception state; and the RN codes the backhaul UCI into a Q=Q?×Qm bits sequence, wherein Qm is the number of bits comprised in each coded modulation symbol in the modulation order of the backhaul uplink subframe. The disclosure improves the performance of the system.

Abstract: The present invention discloses a method for indicating and determining relay link boundary and a base station thereof, wherein, the method for indicating relay link boundary includes: the base station indicates the relay link boundary where the relay node is located to the relay node; the relay node determines the relay link boundary according to the indication of the base station. Through the present invention, the utilization rate of the relay link resource can be improved.

Abstract: The disclosure provides a method and system for allocating resources of a Relay link-Physical Downlink Control Channel (R-PDCCH). The method includes that: a network side configures a resource allocation way of the R-PDCCH (400); a relay node receives control information carried in the R-PDCCH in accordance with the configured resource allocation way (401). The disclosure provides a specific solution for implementing the resource allocation of the R-PDCCH.

Abstract: Spatial discrimination information is fed back at both the multi-antenna transmitter and the multi-antenna receiver connecting a UE and cells within a CoMP measurement set. With the UE feeding back the transmitter and the receiver side spatial discrimination information of each cell-to-UE connection, the composite spatial CSI over multiple sites/nodes can be determined. The approach is applicable for UEs with single or multiple receiving antennas, and the spatial discrimination information can be wideband long-term or subband short-term. In some embodiments, the spatial discrimination information at the receiver side is derived from the actual spatial channel while receiver implementation is taken into account. The spatial discrimination information at the transmitter and at the receiver can be fed back using codebooks for MIMO precoding.

Abstract: A method and apparatus for scheduling packets in an orthogonal frequency division multiple access (OFDMA) system is provided. More particularly, the presently described embodiments relate to a scheduling system whereby packets are prioritized based on packet delay information. The system also handles poor geometry users in an improved manner.

Abstract: The present invention provides a method of calibrating base station comprising a plurality of antennas and operating in an Orthogonal Frequency Division Multiplex (OFDM) and Time Division Duplex (TDD) mode. One embodiment of the method includes a method of calibrating a base station comprising a plurality of antennas for beamsteering forward link traffic data to a target mobile in a TDD wireless communication system. Each antenna is connected to a corresponding radio via a transmit/receive switch that is configured to switch between a receive path and a transmit path. The method includes transmitting a first signal from a first radio via a first cross-over cable coupled to the first radio and a second radio such that the first signal is received by the second radio. The method also includes transmitting a second signal from the second radio via a second cross-over cable coupled between the first and second radios such that the second signal is received by the first radio.

Abstract: The present invention provides a method of windowing signals in a communication system. The method includes accessing at least one first signal associated with at least one of a plurality of orthogonal frequencies and applying a window function to the at least one first signal to form at least one second signal. The at least one second signal remains substantially orthogonal to signals associated with the plurality of orthogonal frequencies.

Abstract: A spatial channel state information (CSI) feedback technique is incorporated into multiple-input multiple-output mobile communications technologies. Spatial channel state information is measured at receiving equipment and then decomposed into components. The components are then quantized using codebook(s) and fed back as multiple indices to transmitting equipment.

Abstract: The present invention provides a method of wireless telecommunication of a message having a block size. The method includes determining a number of retransmissions of the message based upon the block size.