Abstract: A first type of UCI that needs to be transmitted in a current subframe is generated by a terminal device; a second type of UCI that needs to be transmitted in the current subframe is generated on the basis of a threshold number of bits simultaneously transmitted with the UCI in the current subframe and of the number of bits transmitting the first type of UCI; the first type of UCI and the second type of UCI generated are transmitted on corresponding channel resources in the current subframe.

Abstract: Disclosed are a method for implementing HARQ feedback, and a method and device for allocating an uplink subframe. The method is: determining a TDD uplink/downlink reference configuration used for FDD PDSCH HARQ feedback, and allocating, according to the number of uplink subframes indicated by the TDD uplink/downlink reference configuration in a radio frame, an FDD downlink subframe corresponding to ACK/NACK information borne by an uplink subframe indicated by the TDD uplink/downlink reference configuration to the uplink subframe, so that numbers of FDD downlink subframes corresponding to ACK/NACK information borne by the uplink subframes indicated by the TDD uplink/downlink reference configuration are approximately equal. In this way, ACK/NACK information corresponding to downlink data can be timely and accurately fed back, so as to perform accurate data retransmission, thereby effectively ensuring the system performance.

Abstract: A method and device for determining an ACK/NACK feedback bit number, used when carriers having different time division duplex (TDD) uplink/downlink configurations are aggregated for a user equipment or the aggregated carriers includes at least one FDD carrier and at least one TDD carrier, and when the user equipment conducts ACK/NACK feedback on a physical uplink sharing channel (PUSCH) having a corresponding physical downlink control channel (PDCCH), the PDCCH containing a downlink assignment index (DAI) domain.

Abstract: Disclosed are a method and device for transmitting uplink control information (UCI). By applying technical solutions of embodiments of the present invention, implemented is a method for simultaneously transmitting an ACK/NACK and cycle CSI on a channel resource corresponding to a current subframe: dynamically determining, on the basis of a threshold number of bits simultaneously transmitted with the UCI in the current subframe, also of the maximum number of feedback bits and of the minimum number of feedback bits of the ACK/NACK in the current subframe, ACK/NACK bits and CSI bits simultaneously transmitted in the current frame, thus ensuring that the sum of the bits simultaneously transmitted does not exceed the threshold number of bits simultaneously transmitted with the UCI in the current subframe, preventing as much as possible ACK/NACK merging and CSI discarding, and protecting to the maximum extent the accuracy and completeness of UCI transmission.

Abstract: Disclosed are a carrier aggregation feedback method, device and system relating to communication technologies. The number M of subframes requiring ACK/NACK feedback in a current uplink subframe is determined according to a TDD uplink/downlink configuration that corresponds to each carrier and is used for determining a timing relationship based on which a UE reports ACK/NACK feedback information of the carrier, and then ACK/NACK feedback information transmitted by a terminal device in the current uplink subframe and a candidate channel resource used for channel selection are determined according to the value of M, so as to transmit the ACK/NACK feedback information in the candidate channel resource by using PUCCH format 1b in combination with channel selection.

Abstract: There are disclosed a method of and system and apparatus for performing an uplink feedback, applicable to a dynamic sub-frame system, so as to avoid collision of ACK/NACK resources between a non-dynamic system and a dynamic system from occurring.

Abstract: Disclosed are a response information transmission method, system and device. A base station can configure at least two PUCCH transmission carriers for user equipment, accordingly, the user equipment can select at least one PUCCH transmission carrier from the at least two PUCCH transmission carriers which are configured by the base station to transmit response information fed back on a corresponding subframe, and accordingly, the base station can receive the response information which is fed back by the user equipment on at least one PUCCH transmission carrier. The technical solution increases the number of PUCCH transmission carriers, so that compared with the manner of only configuring one PUCCH transmission carrier in the prior art, the reconfiguration operations caused by the movement of user equipment can be reduced, thereby reducing the condition that UE cannot normally communicate in the process of reconfiguration, and reducing the signaling overhead caused by the reconfiguration operation.

Abstract: Disclosed are a method and user equipment of uplink power control. The method comprises the steps of: UE determines the target transmission power of uplink signal which transmitted on each synchronization uplink component carrier of current uplink sub-frame; Judging whether PRACH transmission exists on uplink secondary component carrier of current uplink sub-frame; If judged that there is, determining the PRACH target transmission power, and further judging that whether the sum of the uplink signal power and the PRACH target transmission power exceeds the maximum transmission power of UE; If judged exceeded, holding the PRACH target transmission power constant, and reducing the target transmission power of all or part of SC-FDMA symbol of uplink signal which is contained in current uplink sub-frame and needed to reduce power. The technical scheme of present invention is using for uplink power control when PRACH signal is overlap with other uplink signal.

Abstract: The embodiments of the present application relate to the technical field of wireless communications, and in particular, to a method, system and device for transmitting feedback information, used for realizing simultaneous feedback of multi-carrier ACK/NACK and periodical CSI. The method for sending feedback information in the embodiments of the present application includes: user equipment determining a PUCCH resource corresponding to first feedback information in second feedback information periodical reporting subframes; the user equipment determining feedback information to be transmitted and including the first feedback information according to the determined PUCCH resource and transmitting same via the PUCCH resource corresponding to the first feedback information.

Abstract: Disclosed are a scrambling transmission method and device thereof. The method comprises: a user terminal generates the message to be sent and modulates the message to be sent to generate the data modulation symbols; the user terminal scrambles the data modulation symbol using the cell-specific scrambling sequence, to generate the scrambled data modulation symbols; and the user terminal sending the scrambled data modulation symbols via a DFT-S-OFDM transmission structure with a time domain spreading. The present invention can reduce the interference among different user terminal data on the same resource in adjacent cells, thus improve the detection performance of uplink control signals.

Abstract: Disclosed are a method and an apparatus for transmitting ACK/NACK feedback information. By applying the technical solution of the present invention, when ACK/NACK feedback information is transmitted based on an ACK/NACK mapping table with a PUCCH format 1b with channel selection scheme, the problem of inconsistent detection results due to inconformity of the transmission scheme by a base station and a user equipment (UE) in the process of feeding back the ACK/NACK feedback information can be avoided, so as to implement a rollback of LTE Rel-8 PUCCH format 1a/1b.

Abstract: Disclosed is an uplink power control method, which is used for realizing power control over uplink channels with different uplink transmission times so as to ensure that the total transmit power of terminal equipment in a sub-frame does not exceed maximum transmit power and that a system can work normally.

Abstract: There are disclosed a method of and system and apparatus for performing an uplink feedback, applicable to a dynamic sub-frame system, so as to avoid collision of ACK/NACK resources between a non-dynamic system and a dynamic system from occurring.

Abstract: Disclosed are a response message transmission method, a base station, and a user equipment (UE), to achieve an improved system performance while taking into account the system resource overhead. The method comprises: the UE confirming K bit of response message awaiting feedback; the UE confirming M number of channel resources awaiting selection, the M number of channel resources awaiting selection comprising J number of dynamic channel resources and N number of semi-static channel resources, wherein M=(J+N), 0=N=M, (M?N)=L=M, and M, L, and N are integers; the UE selecting at least one channel resource from the M number of channel resources, and selecting a piece of identification information for use in characterizing the response message awaiting feedback; on each of the selected channel resources, the UE transmitting the selected identification information for use in characterizing the response message awaiting feedback.

Abstract: The present invention relates to the technical field of wireless communication, particularly relates to a method, system and apparatus for sending and receiving feedback information, to be used for transmitting the feedback information after the aggregation of carriers with different time division duplex (TDD) uplink and downlink configurations. The method of an embodiment of the present invention comprises: determining a dedicated feedback timing relationship by using a user equipment (UE) aggregating carriers with different TDD uplink/downlink configurations; the UE transmitting the feedback information corresponding to the downlink data on the primary carrier according to the determined dedicated feedback timing relationship.

Abstract: This application discloses a power control method and device of a Physical Uplink Control Channel (PUCCH) in a long term evolution (LTE) advanced system, relates to the technical field of wireless communications and is intended to reasonably determine the signal transmit power of a user equipment (UE) on the PUCCH to thereby improve the power utilization ratio of the user equipment. In this application, upon determining to bundle generated positive acknowledge (ACK)/negative acknowledge (NACK) information, the UE bundles the ACK/NACK information in a predefined bundling scheme, determines the power offset value corresponding to the number of bits carried on the PUCCH according to the bundling scheme and further determines the transmit power of the PUCCH. With the invention, the transmit power of the UE can be determined more reasonably.

Abstract: A method and an apparatus for ACK/NACK transmission. When a terminal device only receives a semi-persistent scheduling (SPS) physical downlink shared channel (PDSCH) and a physical downlink control channel (PDCCH) in which a downlink assignment index (DAI) value is equal to 1 in a feedback window, the terminal device transmits ACK/NACK feedback information corresponding to the SPS PDSCH and ACK/NACK feedback information corresponding to the PDCCH on PUCCH format 1a/1b resource using PUCCH format 1b with channel selection or ACK/NACK bundling.

Abstract: A power control method and device are disclosed. The method comprises: a user equipment receiving a power adjustment value corresponding to transmit diversity determined and sent by a network side device; the user equipment determines a transmission power for a PUCCH transmission according to the power adjustment value. In the embodiment of the present invention, the transmission power adopted by the transmission PUCCH channel is determined according to the power adjustment value corresponding to the transmission diversity, solving the problem of inaccurate power control after introducing the PUCCH transmission diversity, so that each PUCCH format is capable of performing transmission diversity power control independently.

Abstract: Disclosed are a method and device for simultaneous transmission of ACK/NACK feedback information and periodic CQI/PMI/RI feedback bits. By way of using the technical solution of the embodiments of the present invention, the periodic CQI/PMI/RI feedback bits and ACK/NACK feedback information can be simultaneously transmitted in the same uplink sub-frame using PUCCH format 3 in an LTE-A system, thus avoiding the situation that the transmission of the periodic CQI/PMI/RI information needs to be abandoned when the ACK/NACK feedback information and the periodic CQI/PMI/RI information are transmitted simultaneously in the same uplink sub-frame, improving the feedback efficiency of the uplink control information.

Abstract: Disclosed are an uplink power control method, power control parameter configuration method and apparatus thereof. The uplink power control method comprises: a user equipment receives data in M downlink sub-frames of N downlink carriers and generates uplink control information, wherein the uplink control information of the M downlink sub-frames is transmitted in one uplink sub-frame; the user equipment determines ?F_PUCCH(F) and h(n) for calculating the transmit power of a physical uplink control channel (PUCCH) according to whether the number of bits of the uplink control information is larger than a predefined threshold; ?F_PUCCH(F) represents the power offset of different PUCCH formats relative to the PUCCH format 1a, h(n) represents the power offset corresponding to the number of transmission bits of the PUCCH; the user equipment calculates the PUCCH transmit power according to ?F_PUCCH(F) and h(n), and sending the uplink control information on the PUCCH using the calculated transmit power.