Abstract: Provided are a data sending method and device in spectrum aggregation. When downlink aggregation is performed on the plurality of cells of different types, the method includes that: HARQ information of the plurality of cells is centralized and sent on uplink subframes corresponding to a TDD cell among the plurality of cells, wherein the TDD cell is a primary cell while other cells are secondary cells and it is given that an uplink-downlink configuration of the primary cell is configuration X, where X?{0,1,2,3,4,5,6}, downlink subframes are configured on each FDD cell for a UE so that a network can send a PDCCH/a PDSCH for the UE only on the configured downlink subframes while the UE detects and receives the PDCCH/PDSCH on the configured downlink subframes.

Abstract: A method and device for transmitting information, comprising: firstly, determining a predefined pattern for carrying information; wherein the predefined pattern comprises a predefined sequence, or the time-frequency structure of a predefined reference symbol (RS), and the information comprises an acknowledgment message (ACK) or a non-acknowledgment message (NACK); and then transmitting the predefined pattern carrying the information on a preset time-frequency domain resource.

Abstract: A method and apparatus for sending information are provided, herein the method for sending information includes: the sending end using a physical control channel (PDCCH) or an enhanced physical control channel (ePDCCH) or downlink control information (DCI) transmitted in the agreed resources to describe the information about time that the unlicensed carriers are occupied; the sending end sending the DCI information through licensed carriers or the unlicensed carriers; herein, the information about time includes: a starting subframe occupying an unlicensed carrier and the number of subframes that are continuously occupied starting from the starting subframe. Through the present disclosure, how to enable base stations to mutually inform about an occupation situation of the unlicensed carrier in the related art is achieved, the coordination and utilization of the unlicensed carriers in a wireless communication system are simplified the utilization rate of the unlicensed carriers is improved.

Abstract: The present disclosure discloses a Carrier Aggregation (CA) method and device for a communication system. Herein, the CA method for the communication system includes that: multiple serving cells with subframe deviations are aggregated to obtain K Primary Cells (PCells) and M Secondary Cells (SCells), herein K and M are positive integers; and a transmission node transmits information on the multiple aggregated serving cells according to the subframe deviations.

Abstract: Disclosed are a method for sending information, a method for receiving information, an apparatus and a system, herein the method for sending information includes the following steps: a sending end using Downlink Control Information (DCI)/Uplink Control Information (UCI) to describe information about time that an unlicensed carrier is occupied; and the sending end sending the DCI/UCI information through an licensed carrier or the unlicensed carrier. Through the present document, the problem of how to enable base stations to mutually inform about an occupation situation of the unlicensed carrier is solved, the coordination and utilization of the unlicensed carriers in a wireless communication system are facilitated the utilization rate of the unlicensed carriers is improved.

Abstract: The present disclosure provides a method and an apparatus for transmitting an uplink control signal. The method includes: transmitting M predefined sequences on two transmission symbols within a transmission time interval, and determining an acknowledgement (ACK) message or a negative acknowledgement (NACK) message according to the M predefined sequences and mapping patterns of the M predefined sequences in a time domain and a frequency domain, where M is a positive integer. By means of the above technical solution, a problem that a transmission structure for transmitting the ACK message and the NACK message is imperfect when the transmission time interval is equal to the length of two symbols is solved, and the transmitting of the ACK message and the NACK message when the transmission time interval is equal to the length of two symbols is perfected.

Abstract: Provided are methods for sending and receiving ACK/NACK information, a base station, and a terminal, wherein the method for sending ACK/NACK information includes that ACK/NACK information of a plurality of terminals is divided into X groups according to a preset indication parameter, wherein X is a positive integer greater than or equal to 1; joint coding is performed on ACK/NACK information corresponding to each group in the X groups, so as to obtain X first bit blocks; and the X first bit blocks are mapped to a predetermined ACK/NACK physical resource and sent. By means of the disclosure, reliable transmission of HARQ-ACK information of a terminal on an NCT is implemented, the reliability of transmission of UL data in a Low Cost terminal is improved, and problems such as a conflict of PHICH resource allocation and ICIC of a frequency domain in a small cell are solved.

Abstract: The present invention provides a method and apparatus for determining a scheduling gap, wherein, the method comprises: demodulating the NarrowBand Physical Downlink Control Channel in order to determine the initial subframe of the scheduled NarrowBand Physical Downlink Shared Channel (NB-PDSCH) or the NarrowBand Physical Uplink Shared Channel (NB-PUSCH), wherein, the basis for determining the initial subframe comprises at least one of the following: the final subframe of the NB-PDCCH, the final subframe in the search space where the NB-PDCCH is located, the resource allocation within the scheduling window, and the scheduling gap indication. The implementation of the present technical solutions solves the problem of how to determine the scheduling within the NarrowBand system, thereby saving indication expenditure and improving resource usage efficiency.

Abstract: The present disclosure provides a method and an apparatus for information transmission. The method includes: transmitting information or a channel over one or more of available narrow bands. The available narrow bands include available uplink narrow bands and/or available downlink narrow bands and the available narrow bands are determined based on information including at least one of: a system bandwidth, a cell identity, a position of an anchor carrier, information indicated by a PSS, information indicated by an SSS, information indicated by a MIB and information indicated by a SIB. The information or channel transmitted over the one or more narrow bands includes at least one of: a downlink control channel, a PDSCH, an RAR, a paging message, a SIB, a MIB, a PRACH, a PUSCH, and a PUCCH. The above solution solves the problem regarding how to obtain multiple narrow bands/carriers in NB-IoT and provides a scheme for determining available narrow bands.

Abstract: Provided are an information transmission method and apparatus, which relate to wireless communication. The method includes determining a frequency hopping pattern; and sending uplink information on a specified physical resource block (PRB) according to the frequency hopping pattern, or receiving or detecting downlink information on the specified PRB according to the frequency hopping pattern. The frequency hopping pattern is determined according to at least one of the following information: a time domain frequency hopping granularity; an available subframe set; an available subband set; a time division duplex (TDD) uplink and downlink configuration; a number of PRBs included in each available subband; and an cell identifier of a cell in which a terminal currently resides.

Abstract: Embodiments of the present disclosure provide a method and apparatus for information transmission, which comprises configuring a transmission window within a scheduling window; wherein, a scheduling window comprises K transmission windows, a transmission window comprises P available subframes, K is an integer greater than 0, P is an integer greater than 1, and the available subframes within the transmission window are utilized to transmit data. By using at least two subframes within a transmission window to transmit data, the technical solutions provided by the present embodiments allow for the channel coding and rate matching of system information, such as SIB1 information, to no longer be restricted to within a single subframe; this technology is especially applicable to system information transmission in systems like NB-IoT, and ensures transmission performance of system information like NB-IoT SIB1 information.

Abstract: The present disclosure provides a synchronization signal transmission method, device, and system. The method includes: periodically transmitting, by a base station, a synchronization signal and a Physical Broadcast Channel PBCH to a terminal according to a preset transmission subframe pattern, wherein the synchronization signal comprises a primary synchronization signal PSS and a secondary synchronization signal SSS, and the transmission subframe pattern indicates positions of transmission subframes of the synchronization signal and the PBCH in a plurality of radio frames within a predetermined period of time.

Abstract: The present embodiments provide a method for the transmission of messages during random access, comprising: terminals that transmit type-1 messages to the base station according to the type-1 message transmission method corresponding to the terminal set to which the terminal belongs; wherein, the terminal sets are classified according to the subcarrier transmission capability supported by the terminals. The present embodiments also provide three other methods for the transmission of messages during random access, as well as the corresponding devices and computer storage mediums.

Abstract: Disclosed are a method and device for transmitting uplink control information. The method comprises: dividing uplink sub-frames in a radio frame into N groups and dividing all downlink serving cells into M groups; determining the corresponding relationship between the M groups downlink serving cells and the N groups uplink subframes; according to the determined corresponding relationship, transmitting by a terminal, on the uplink sub-frames, the uplink control information of the corresponding downlink serving cells required to be transmitted, wherein said M and N are both positive integers greater than 1, and M?N.

Abstract: The present invention provides a data transmission method and apparatus. The method includes: transmitting physical downlink channel data according to a first-type reference signal (RS) or a second-type RS or a third-type RS. The method of the present invention ensures a balance between data transmission performance and RS overheads for different NarrowBand—Internet Of Things (NB-IOT) physical downlink channel data, thereby resolving the problem in the related art of not knowing which RS is to be used to transmit NB-IOT physical channel data.

Abstract: Provided are a method and device for sending control information and receiving control information. The method for sending control information comprises repeatedly sending control information within a scheduling period of the control information M times, wherein the scheduling period is the length of N radio frames, N and M are positive integers greater than 1, and N is greater than or equal to M. The disclosure solves the technical problem in the related art that control information cannot be correctly received in a low-coverage environment and thus a terminal cannot normally access a network, achieving the technical effect of accurately receiving the control information so as to ensure that the network can be accessed normally.

Abstract: Disclosed is a data transmission method, including: obtaining subframe types of subframes for bearing data transmission; transmitting data on the subframes according to the subframe types; when the subframe types includes a first predefined subframe type and a first conventional subframe type, configuring a different value for an element in a transmission structure respectively used by the first predefined subframe type and the first conventional subframe type; when the subframe types includes a second predefined subframe type and a second conventional subframe type, configuring the second conventional subframe to be an uplink subframe or downlink subframe within preset time; configuring the second predefined subframe to switch between uplink and downlink within the preset time; and when the subframe types includes a third predefined subframe type and a third conventional subframe type, configuring maximum transmission power of the third predefined subframe to be less than that of the third conventional subfr

Abstract: The present disclosure provides a method and an apparatus for receiving Channel Quality Indication (CQI) information, as well as a method and an apparatus for transmitting CQI information. The method for receiving CQI information includes: transmitting a higher layer configuration signaling message to a terminal; and receiving CQI information from the terminal. The CQI information is determined based on a CQI table obtained based on the higher layer configuration signaling message. With the above solutions, higher data transmission reliability and lower data transmission rate required for MTC terminals with coverage enhancement and 5G terminals can be achieved.

Abstract: Disclosed is a method for notifying uplink and downlink configuration information. The method includes: a base station sending to a user equipment (UE) a downlink control information format, wherein the downlink control information format carries uplink and downlink configuration information used for indicating an uplink and downlink configuration.

Abstract: Disclosed are a data transmitting, receiving method, a data transmitting end, and a data receiving end. The transmitting method includes that: a transmitting end codes and modulates a plurality of transport blocks of a same receiving end, wherein a same precoding matrix is used to precode the plurality of transport blocks; the transmitting end maps the plurality of transport blocks onto time-frequency resources of a plurality of subframes; and the transmitting end transmits the plurality of subframes.