Abstract: The present disclosure provides a method for scheduling a subframe for transmitting data in a base station of a millimeter wave system, comprising: for scheduling a downlink subframe: transmitting a downlink scheduling signaling (DL grant) in a first subframe, wherein the downlink scheduling signaling includes at least one first scheduling position information, the first scheduling position information indicating a subframe position scheduled for performing downlink transmission; for scheduling an uplink subframe: transmitting an uplink scheduling signaling (UL grant) in a second subframe, wherein the uplink scheduling signaling includes at least one second scheduling position information, the second scheduling position information indicating a subframe position scheduled for performing uplink transmission. The present disclosure also provides a method for scheduling a subframe for transmitting HARQ-A/N in a millimeter wave system.

Abstract: Embodiments of the present disclosure provide a method for a base station, a method for a user device, a base station, and a user device. The method for the base station comprises: receiving a random access preamble from a user device through reception beamforming; and transmitting a random access response to the user device. The method for the user device comprises: transmitting a random access preamble to a base station; and receiving a random access response from the base station through reception beamforming. The embodiments of the present disclosure provide a random access channel procedure based on beamforming to combat strong path loss in a wireless communication environment (such as millimeter wave communication), so as to ensure uplink access of the user device effectively.

Abstract: Embodiments of the present disclosure relate to a method and a device for transmitting common control signals in a millimeter wave communication system. In one embodiment of the present disclosure, the method comprises: configuring a first beamforming codebook; precoding a plurality of common control signals respectively by using beamforming codewords in the first beamforming codebook, the plurality of common control signals being the same; sending, by using multiple beams, the plurality of precoded common control signals respectively to respective beam coverage regions in a cell in a space-division multiplexing manner. With embodiments of the present disclosure, beamformed transmission for synchronization/broadcasting/control signaling can fight against strong path loss in millimeter wave communication. Thereby, UEs accessing and precise update of system information later can be effectively guaranteed.

Abstract: Disclosed are a method and device for sending and receiving control signaling, and a computer program product. The method can be executed at an access node that is operated over a first carrier. The method comprises: determining a first resource in a first carrier for transmitting first control signaling, the bandwidth of the first resource being less than the total bandwidth of the first carrier; and sending the first control signaling to a device by means of the first resource, wherein the first control signaling comprises at least one of paging control information and system configuration information used by the device after accessing the node. The method and device in the embodiments of the present invention can enhance a control channel and improve the performance of control signaling to a device.

Abstract: The present disclosure provides a method for scheduling a subframe for transmitting data in a base station of a millimeter wave system, comprising: for scheduling a downlink subframe: transmitting a downlink scheduling signaling (DL grant) in a first subframe, wherein the downlink scheduling signaling includes at least one first scheduling position information, the first scheduling position information indicating a subframe position scheduled for performing downlink transmission; for scheduling an uplink subframe: transmitting an uplink scheduling signaling (UL grant) in a second subframe, wherein the uplink scheduling signaling includes at least one second scheduling position information, the second scheduling position information indicating a subframe position scheduled for performing uplink transmission. The present disclosure also provides a method for scheduling a subframe for transmitting HARQ-A/N in a millimeter wave system.

Abstract: The invention discloses a method and device, in a central processing unit of a control device of a pico cell or a macro cell of a heterogeneous network based upon a time division duplex system, for instructing a user equipment to perform dynamic uplink and downlink resource configuration.

Abstract: The invention proposes a method of implementing hybrid automatically retransmission feedback in a UE in a carrier aggregation network, wherein, the network comprises a self-scheduling primary cell and a secondary cell, and the method comprises: determining a reference frame configuration based on the frame configuration of the primary cell and the frame configuration of the secondary cell, wherein, the reference frame configuration is the type 5; determining a first quantity of downlink subframes of the secondary cell needing to be fed back in uplink subframes, according to the frame configuration of the secondary cell and downlink subframes, associated with uplink subframes, corresponding to the reference frame configuration; receiving from a base station a parameter about the number of downlink subframes fed back, and calculating a second quantity of downlink subframes needing to be fed back in the uplink subframes, based on the parameter; determining an actual quantity of downlink subframes actually fed ba

Abstract: The present invention provides a method for transmitting uplink control information in coordinated multi-point system. According to an embodiment of the present invention, a method for feeding back channel state information of multiple transmission points in a coordinated multi-point cooperating set is provided, and the method includes: receiving reference signals of the multiple transmission points; based on the reference signals of the multiple transmission points, evaluating channel state information of each of the multiple transmission points; multiplexing and transmitting the channel state information of the multiple transmission points on a physical uplink control channel (PUCCH) of one of the multiple transmission points in a predetermined mapping sequence.

Abstract: The present invention provides a method, apparatus, and system for operating and for generating signaling based on subframe sets. A base station of the present invention belongs to a TDD system. Neighboring cells in the TDD system can adopt different uplink and downlink subframe configurations at the same time. The user equipment obtains indication information of two subframe sets, which two subframe sets are obtained by partitioning at least one subframe in the uplink and downlink subframe configuration(s) based on interference level(s) of the at least one subframe, and performs a corresponding operation based on the subframe set to which the at least one subframe belongs, respectively, when performing an uplink or downlink operation with a base station on the at least one subframe. Compared with the prior art, the user equipment of the present invention can perform a corresponding operation based on subframe sets including subframes suffering different levels of interference.

Abstract: The present invention provides an apparatus for suppressing interference in a coordinated multi-point CoMP transmission system, comprising: frame configuration conflicting detection unit configured to detect conflicting frame configurations; frame configuration conflicting notification unit configured to give a notification of conflicting frame configurations; and interference suppression unit configured to suppress interference between a first CoMP cluster and a second CoMP cluster that are adjacent in the CoMP transmission system when detecting conflicting frame configurations. The present invention further provides a method of suppressing interference in a coordinated multi-point CoMP transmission system. The present invention provides a novel solution that may suppress inter-cell UL/DL ICI by adopting coordinated beamforming (CBF) and coordinated scheduling (CS) in a TDD CoMP system, while maintaining sound implementation of CoMP and flexibility of frame configuration in the TDD system.

Abstract: The invention relates to a method, in a first base station (110) of a wireless communication network, of calibrating an offset of an antenna array of the first base station relative to an antenna array of a second base station (120) in the wireless communication network, the method including the steps of: dividing a whole parameter offset range into a plurality of segments (S211) according to the requirement of calibration precision and assigning a feature value for each segment; compensating uplink channel state information according to the feature value assigned to one of the plurality of segments in a predetermined order in a first cycle (S411); designing a pre-coding vector or matrix for downlink data transmission according to a compensation result (S413), pre-coding downlink data and subsequently transmitting the downlink data to a user equipment cooperatively with the second base station (S414, S423); and judging whether all the segments of the parameter offset range have been traversed (S415), and if a

Abstract: The present invention proposes a distributed probabilistic dynamic interference coordination scheme to decrease or eliminate inter-cell interference, wherein the mechanism of ALOHA is introduced into the dynamic interference coordination. According to the first aspect of the present invention, a resource scheduling method is proposed, comprising: selecting resource to be scheduled from a scheduling list; selecting a first user equipment to be scheduled from the scheduling list; allocating the selected resource to the first user equipment by probability of p, wherein 0?p?1, if the first user equipment is of edge user. The present invention further proposes a scheduler implementing the aforesaid resource scheduling method and a base station (BS) comprising the aforesaid scheduler.

Abstract: The invention proposes a method of implementing hybrid automatically retransmission feedback in a UE in a carrier aggregation network, wherein, the network comprises a self-scheduling primary cell and a secondary cell, and the method comprises: determining a reference frame configuration based on the frame configuration of the primary cell and the frame configuration of the secondary cell, wherein, the reference frame configuration is the type 5; determining a first quantity of downlink subframes of the secondary cell needing to be fed back in uplink subframes, according to the frame configuration of the secondary cell and downlink subframes, associated with uplink subframes, corresponding to the reference frame configuration; receiving from a base station a parameter about the number of downlink subframes fed back, and calculating a second quantity of downlink subframes needing to be fed back in the uplink subframes, based on the parameter; determining an actual quantity of downlink subframes actually fed ba

Abstract: A method of handling PUSCH data retransmission collision, in a user terminal of TDD, wherein, the user terminal uses a first UL/DL configuration mode in a first radio frame, the method comprises the following steps: receiving a reconfiguration message from a base station, the reconfiguration message is used to indicate the user terminal to use a second UL/DL configuration mode in a second radio frame; judging whether PHICH for a first PUSCH data transmission is located in the first radio frame; if yes, judging whether the second radio frame includes a collision subframe, wherein, the downlink subframe occupied by the PHICH is also used to bear uplink retransmission resource allocation; when including, determining a retransmission uplink subframe used to retransmit PUSCH data by using a remapping scheme, when the second radio frame includes the collision subframe; and retransmitting the PUSCH data in the retransmission uplink subframe.

Abstract: The present invention provides a method for transmitting uplink control information in coordinated multi-point system. According to an embodiment of the present invention, a method for feeding back channel state information of multiple transmission points in a coordinated multi-point cooperating set is provided, and the method includes: receiving reference signals of the multiple transmission points; based on the reference signals of the multiple transmission points, evaluating channel state information of each of the multiple transmission points; multiplexing and transmitting the channel state information of the multiple transmission points on a physical uplink control channel (PUCCH) of one of the multiple transmission points in a predetermined mapping sequence.

Abstract: A method and device for multiple-cell collaborative communication in a multiple input multiple output (MIMO) system are disclosed by the present invention. In said method, base stations participating in multiple-cell collaborative MIMO communication perform precoding and scheduling one by one. At first, a first base station selects the mobile terminals participating in the collaborative communication and performs transmission setting, including pre-coding setting; then the scheduling and setting results of the first base station are kept invariant, so that a second base station selects the mobile terminals participating in the collaborative communication and performs transmission setting, including pre-coding setting, according to the scheduling and setting results of the first base station.

Abstract: The invention discloses a method and device, in a central processing unit of a control device of a pico cell or a macro cell of a heterogeneous network based upon a time division duplex system, for instructing a user equipment to perform dynamic uplink and downlink resource configuration.

Abstract: The present invention provides an apparatus for suppressing interference in a coordinated multi-point CoMP transmission system, comprising: frame configuration conflicting detection unit configured to detect conflicting frame configurations; frame configuration conflicting notification unit configured to give a notification of conflicting frame configurations; and interference suppression unit configured to suppress interference between a first CoMP cluster and a second CoMP cluster that are adjacent in the CoMP transmission system when detecting conflicting frame configurations. The present invention further provides a method of suppressing interference in a coordinated multi-point CoMP transmission system. The present invention provides a novel solution that may suppress inter-cell UL/DL ICI by adopting coordinated beamforming (CBF) and coordinated scheduling (CS) in a TDD CoMP system, while maintaining sound implementation of CoMP and flexibility of frame configuration in the TDD system.

Abstract: The invention relates to a method and apparatus for reducing an overhead of control signaling. The method of reducing an overhead of control signaling comprises the steps of: generating one of a plurality of downlink control information formats which is used for scheduling a physical uplink shared channel, and transmitting the generated one of the plurality of downlink control information formats which is used for scheduling the physical uplink shared channel, wherein each of the plurality of downlink control information formats includes a minimum payload required for a specific scenario. With the invention, the signaling overhead is minimized.

Abstract: A method and device for multiple-cell collaborative communication in a multiple input multiple output (MIMO) system are disclosed by the present invention. In said method, base stations participating in multiple-cell collaborative MIMO communication perform precoding and scheduling one by one. At first, a first base station selects the mobile terminals participating in the collaborative communication and performs transmission setting, including pre-coding setting; then the scheduling and setting results of the first base station are kept invariant, so that a second base station selects the mobile terminals participating in the collaborative communication and performs transmission setting, including pre-coding setting, according to the scheduling and setting results of the first base station.