Abstract: A method and system for acquiring channel information are disclosed in the present document, wherein the method includes: a base station and a User Equipment (UE) jointly saving a first codebook and at least a second codebook, and the first codebook being used for channel information quantization in various scenarios; the UE performing feedback of at least 2 Precoding Matrix Indicators (PMIs) to the base station, wherein, one PMI corresponds to one code word in the first codebook, all the other PMIs respectively correspond to different code words in a second codebook used currently, and all the code words corresponding to the fed back PMIs are used for representing channel information of one or multiple or all subbands; and after receiving the PMIs fed back from the UE, the base station finding corresponding code words from the first codebook and the second codebook used currently, and acquiring the channel information.

Abstract: A Cooperative Multi-point transmitting and receiving apparatuses using base station modulation method in a wireless system are provided.

Abstract: The present invention discloses a method for sending channel information, and a terminal, a base station and an LTE-A system. The method comprises: a mobile terminal acquiring channel information; determining, in a codebook space, an RI and a PMI corresponding to the channel information according to the channel information; and sending the RI and the PMI to a base station. By way of the present invention, the effects of improving the throughput of an LTE-A system and the frequency spectrum efficiency thereof are achieved.

Abstract: Methods and apparatus are directed towards controlling power of physical uplink control channel (PUCCH) format 1b for advanced time division duplex. If HARQ-ACK bundling is not applied, then nHARQ associated with the PUCCH is determined based on a number of received transport blocks and SPS release physical downlink control channels in subframes i-km. If HARQ-ACK bundling is applied and a number of assigned resource blocks equal to 2, then nHARQ associated with the PUCCH is determined based on a number of received physical downlink shared channels (PDSCH) and semi-persistent scheduling (SPS) release physical downlink control channels (PDCCH) in the subframes i-km.

Abstract: The present invention discloses a method for feeding back channel information, which includes: configuring a same codebook space at a data transmitting end and a data receiving end (101); the data receiving end selecting, from the codebook space, a codeword matched with a channel, and transmitting a sequence number corresponding to the codeword to the data transmitting end (102); and the data transmitting end extracting, according to the sequence number, a corresponding codeword from a locally-configured codebook space to obtain channel state information (103). The present invention also discloses a system for feeding back channel information, which includes a data transmitting end and a data receiving end. The method and system for feeding back channel information solve the problem that there is no channel information feedback method for dual-polarized channels.

Abstract: A method of transmitting a plurality of channel state information reports on a physical uplink shared channel includes separately coding each of the plurality of channel state information reports on the physical uplink shared channel. Each of the channel state information reports may be coded using tail-biting convolutional coding.

Abstract: The present invention discloses a method for sending channel information, and a terminal, a base station and an LTE-A system. The method comprises: a mobile terminal acquiring channel information; determining, in a codebook space, an RI and a PMI corresponding to the channel information according to the channel information; and sending the RI and the PMI to a base station. By way of the present invention, the effects of improving the throughput of an LTE-A system and the frequency spectrum efficiency thereof are achieved.

Abstract: A method and terminal for feeding back channel status information, include: when the channel status information is fed back on the physical uplink control channel, code words contained in the used codebook CPUCCH(r) with a layer number or rank being r is a subset of the code words contained in the codebook CPUSCH(r) with a layer number or rank being r in the overall codebook defined in the LTE-A; wherein, the CPUCCH(r) is a single codebook or a single codebook equivalent to dual codebooks; and the CPUSCH(r) is a single codebook or a single codebook equivalent to the dual codebooks; and the single codebook equivalent to the dual codebooks refers to an actually defined single codebook in which 2 pre-coding matrix identifiers are required to determine the codebook of the code words therein for an established r.

Abstract: The present invention discloses a method for feeding back channel information, which includes: configuring a same codebook space at a data transmitting end and a data receiving end (101); the data receiving end selecting, from the codebook space, a codeword matched with a channel, and transmitting a sequence number corresponding to the codeword to the data transmitting end (102); and the data transmitting end extracting, according to the sequence number, a corresponding codeword from a locally-configured codebook space to obtain channel state information (103). The present invention also discloses a system for feeding back channel information, which includes a data transmitting end and a data receiving end. The method and system for feeding back channel information solve the problem that there is no channel information feedback method for dual-polarized channels.

Abstract: A method and system for acquiring channel information are disclosed in the present document, wherein the method includes: a base station and a User Equipment (UE) jointly saving a first codebook and at least a second codebook, and the first codebook being used for channel information quantization in various scenarios; the UE performing feedback of at least 2 Precoding Matrix Indicators (PMIs) to the base station, wherein, one PMI corresponds to one code word in the first codebook, all the other PMIs respectively correspond to different code words in a second codebook used currently, and all the code words corresponding to the fed back PMIs are used for representing channel information of one or multiple or all subbands; and after receiving the PMIs fed back from the UE, the base station finding corresponding code words from the first codebook and the second codebook used currently, and acquiring the channel information.

Abstract: A method of selecting resource element for UCI transmission and countering a ping-pong effect includes adjusting transmission parameters without adjusting a channel quality indicator/pre-coding matrix index. The transmission parameters include a modulation coding set of a transport block and a transport block size. Another method of selecting resource element for UCI transmission and countering the ping-pong effect includes selecting a transport block having a highest modulation coding set index or the transport block having a lowest modulation coding set index. Alternatively, the evolved Node B may select the transport block having a largest size or the transport block having the smallest size.

Abstract: The disclosure provides a method for channel information feedback and a terminal, applied in an 8 antennae system, comprising: a terminal acquires the channel information which comprises PMI1 information and RI information; the terminal jointly encodes the PMI1 information and RI information into a 5 bit Report Type; the terminal feeds back the Report Type on a physical uplink control channel. The disclosure solves the poor transmission performance of the system caused by high overhead of channel information feedback in the related arts, thus improving the performance of the terminal to feed back information and improving the transmission performance of the system.

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 involving at least one base station and at least one mobile unit. The method includes determining, based on an interference mitigation pattern, a plurality of transmission powers associated with a corresponding plurality of subcarriers available to said at least one base station. The method also includes determining a plurality of priority metrics associated with the plurality of subcarriers and the at least one mobile unit, and assigning at least one of the plurality of subcarriers to the at least one mobile unit based on the plurality of priority metrics and the interference mitigation pattern.

Abstract: A spatial channel state information (CSI) feedback technique is incorporated into multiple-input multiple-output mobile communications technologies. User equipment (UE) channel conditions are measured and, based on the measurements, codebook subsets are selected to which indices are assigned and fed back to a base station.

Abstract: The present invention discloses a method and terminal for feeding back channel status information, including: when the channel status information is fed back on the physical uplink control channel, code words contained in the used codebook CPUCCH (r) with a layer number or rank being r is a subset of the code words contained in the codebook CPUSCH (r) with a layer number or rank being r in the overall codebook defined in the LTE-A; wherein, the CPUCCH (r) is a single codebook or a single codebook equivalent to dual codebooks; and the CPUSCH (r) is a single codebook or a single codebook equivalent to the dual codebooks; and the single codebook equivalent to the dual codebooks means that the actually used codebook is an actually defined single codebook, however, 2 pre-coding matrix identifiers are required to determine the codebook of the code words therein for an established r.

Abstract: The present invention provides a method of interference mitigation in a wireless communication system. The method that may include reducing transmission power associated with at least one first channel provided by at least one first base station associated with at least one corresponding first coverage area adjacent a second coverage area associated with a second base station concurrently with maintaining at least one transmission power associated with the second base station(s). The method may also include increasing the transmission power associated with the first channel(s) provided by the first base station(s) concurrently with reducing at least one transmission power associated with at least one first channel provided by the second base station(s).

Abstract: An exemplary method of controlling communications includes determining a total congestion window size for a router device. An allocation of at least a portion of the determined total congestion window size to allocated at least one mobile station that communicates with the router device over a wireless link is determined based on the determined total congestion window size. The determined allocation is then reported to a source of a communication intended for the at least one mobile station.

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: A method and an apparatus for wireless communication between a receiver and a transmitter in a cellular system are provided. The method comprises associating a channel of known structure at the transmitter with the transmission of a first control channel to indicate a variable structure of the first control channel to the receiver.