Abstract: In a control information transmission method according to present disclosure, a user equipment acquires configuration information of an enhanced physical downlink control channel (EPDCCH) set. The user equipment determines, according to the configuration information and from the EPDCCH set, at least one EPDCCH set in which an EPDCCH needs to be monitored. The user equipment monitors an EPDCCH on a resource corresponding to the at least one EPDCCH set, to acquire control information sent by a base station.

Abstract: A terminal device receives first information including an acknowledgment resource indicator (ARI), and determines, based on the ARI, a first uplink control channel (PUCCH) resource in a PUCCH resource set corresponding to a payload size of a hybrid automatic repeat request acknowledgment (HARQ-ACK). In a case that the first PUCCH resource and a second PUCCH resource partially overlap in terms of time; or the first PUCCH resource and a second PUCCH resource configured for CSI do not overlap in terms of time, and the first PUCCH resource and the second PUCCH resource each partially overlap at least one third PUCCH resource configured for at least one positive scheduling request (SR) in terms of time, the terminal device determines, based on the ARI, a fourth PUCCH resource in a second PUCCH resource set corresponding to a total payload size for sending the HARQ-ACK, CSI, and at least one SR status.

Abstract: The method in the embodiment of the present invention includes: determining a shared frequency band, and a cell of the shared frequency band is a secondary serving cell of UE1 that performs communication by using the first network and a secondary serving cell of UE2 that performs communication by using the second network, and both the UE1 and the UE2 can work on the shared frequency band and at least one other frequency band than the shared frequency band; and transmitting only a common signal of the second network on the shared frequency band when service transmission of the first network is performed on the shared frequency band.

Abstract: A method includes: mapping, by a base station, N reference signals to a specified time-frequency resource; and transmitting, by the base station, a reference signal on the specified time-frequency resource to user equipment, where for any PRB, the specified time-frequency resource includes a first OFDM symbol in a data region in time domain; where the PRB includes a type-1 control channel and the data region, the data region includes a type-2 control channel and a data channel, the type-1 control channel includes first m OFDM symbols of the PRB in time domain, and the data region includes OFDM symbols other than the type-1 control channel in the PRB in time domain; and the type-2 control channel includes first n OFDM symbols in the data region in time domain, and the data channel includes OFDM symbols other than the type-2 control channel in the data region in time domain.

Abstract: Embodiments of the present disclosure provide a method for receiving a service from a wireless network device. A terminal device receives frequency band information of N frequency ranges of a cell, and receives characteristic information of radio interface technologies respectively supported in each of the N frequency ranges. N is greater than or equal to 2, and a first radio interface technology is supported in a first frequency range of the N frequency ranges. The terminal device also receives information of a correspondence between a data radio bearer (DRB) and the first radio interface technology. The terminal device receives the service on the DRB within the first frequency range using the first radio interface technology. The characteristic information of radio interface technologies respectively supported in each of the N frequency ranges includes frame structure information.

Abstract: This application discloses methods an apparatuses for sending and receiving uplink control information in the field of communications technology. In some implementations, a terminal device may receive first downlink control information (DCI) from a network device; determine, based on the received first DCI, that an uplink shared channel scheduled by using the first DCI is used to send only uplink control information (UCI); and send first UCI to the network device through the uplink shared channel scheduled by using the first DCI. In other words, the network device indicates to the terminal device by using DCI so that the terminal device can determine, based on an indication of the network device, whether the uplink shared channel scheduled by using the DCI is used to send only the UCI.

Abstract: Embodiments of the present invention provide information sending and receiving methods and devices. The information sending method includes: determining, by a base station, a downlink subframe that is used to send first information to user equipment UE; and sending, by the base station, the first information to the UE by using the downlink subframe, where the downlink subframe is a first subframe, a second subframe, or a third subframe, where the first subframe includes at least two sub-physical resource block pairs, the second subframe includes at least two physical resource block pairs, and the third subframe includes at least one sub-physical resource block pair and at least one physical resource block pair. According to the embodiments of the present invention, an LTE communications system efficiently and flexibly supports various network architectures and various types of UEs.

Abstract: Embodiments of the present invention provide a method and an apparatus for transmitting a downlink control channel. The downlink control channel includes a first downlink control channel and a second downlink control channel. The first downlink control channel includes a first RS and first DCI. A method for receiving a downlink control channel by user equipment includes: obtaining a first RS time-frequency resource corresponding to the first RS; determining a first DCI time-frequency resource corresponding to the first DCI based on the first RS time-frequency resource; detecting the first RS on the first RS time-frequency resource, and demodulating the first DCI on the first DCI time-frequency resource by using the first RS; and determining a second time-frequency resource corresponding to the second downlink control channel based on the first DCI.

Abstract: According to one embodiment, a terminal device receives downlink control information that is sent by a network device and that indicates a first physical downlink control channel (PUCCH), where the first PUCCH and a second PUCCH occupy a same first time-domain symbol, and the first PUCCH and a third PUCCH occupy a same second time-domain symbol; and the terminal device sends the first PUCCH, where the first PUCCH carries a first sequence and a second sequence, a cyclic shift of the first sequence is determined based on a hybrid automatic repeat request-acknowledgment (HARQ-ACK) value and state information of a scheduling request (SR) corresponding to the second PUCCH, and a cyclic shift of the second sequence is determined based on the HARQ-ACK value and state information of an SR corresponding to the third PUCCH. An HARQ-ACK and a plurality of SRs can be multiplexed on a same PUCCH improving communication efficiency.

Abstract: An information transmission method includes: receiving downlink data sent by a network device, where a time-frequency resource used to carry hybrid automatic repeat request HARQ information that needs to be fed back for the downlink data and a time-frequency resource used to carry scheduling request SR information partially overlap in time domain, and a configured time of sending the SR information is earlier than a configured time of sending the HARQ information; and at the configured time of sending the SR information, when the SR information is positive and the HARQ information is not obtained, sending hybrid automatic repeat request negative acknowledgement HARQ-NACK information on the time-frequency resource used to carry the SR information.

Abstract: Embodiments of the present application provide a method for acquiring information of access resources, a terminal device, and a base station. A terminal device detects a synchronization signal of a cell to be accessed by the terminal device. The terminal device further receives a broadcast channel of the cell on a broadcast channel resource. The terminal device then determines a resource on which the cell is located according to resource indication information carried in the broadcast channel. The broadcast channel resource corresponds to an actual access resource, and the synchronization signal is detected on the actual access resource. The actual access resource is one of a plurality of candidate access resources of the cell. The resource indication information indicates a location relationship between the actual access resource and the resource on which the cell is located.

Abstract: A data transceiving method includes: receiving a first reference signal transmitted on a subcarrier in a target physical resource block, and performing, according to a first mapping rule, corresponding processing on the first reference signal received from the subcarrier in the target physical resource block, where the first mapping rule defines at least mapping of the first reference signal to 10 specified subcarriers in a physical resource block, none of the 10 specified subcarriers are in a DC subcarrier candidate set, and the first reference signal includes a PCRS. In the embodiments of this application, only the 10 specified subcarriers in the physical resource block that are not used as DC subcarriers are selected to transmit the first reference signal, and no additional DC subcarrier is set. In this way, a quantity of downlink subcarriers in a system does not change dynamically.

Abstract: This application provides a method and apparatus for obtaining a resource indication value. The method includes: receiving downlink control information, where the downlink control information includes a first resource indication value n, a quantity of bits of the first resource indication value n is determined based on a first bandwidth part, and the downlink control information is used to schedule a data channel located in a second bandwidth part; determining a second resource indication value r based on the first resource indication value n, where r=?±a·n+b? or r=?a·n?, a is a positive number, and b is a positive integer; and determining, based on the second resource indication value r, a resource occupied by the data channel. Flexibility of scheduling a data channel by a network device can be improved in this manner.

Abstract: A data transmission method applied to a base station and user equipment (UE). The base station determines configuration information of a PUCCH and configuration information of an SRS, and sends the configuration information of the PUCCH and the configuration information of the SRS to the UE in a cell. The UE determines, according to the configuration information of the PUCCH, a frequency-domain resource for transmitting the PUCCH, and determines, according to the configuration information of the SRS, a frequency-domain resource for transmitting the SRS. The base station receives, according to the configuration information of the PUCCH, a subcarrier that carries the PUCCH sent by the UE, and demodulates the subcarrier to obtain the PUCCH. The base station receives, according to the configuration information of the SRS, a subcarrier that carries the SRS sent by the UE, and demodulates the subcarrier to obtain the SRS.

Abstract: A timing method for time division duplex communication, an uplink/downlink data scheduling method, a base station, and user equipment are provided. By determining whether grouping needs to be performed on uplink/downlink short transmission time intervals, it is determined, for different grouping requirements, whether addition of indication information to control signaling is required to indicate to user equipment an uplink short transmission time interval sequence number in an uplink short transmission time interval group for uplink data transmission or feedback to downlink data scheduling. Alternatively, addition of indication information to control signaling is not required, and uplink data transmission or feedback to downlink data scheduling is performed in an uplink short transmission time interval determined according to a default rule.

Abstract: A terminal device receives first information including an acknowledgment resource indicator (ARI), and determines, based on the ARI, a first uplink control channel (PUCCH) resource in a PUCCH resource set corresponding to a payload size of a hybrid automatic repeat request acknowledgment (HARQ-ACK). In a case that the first PUCCH resource and a second PUCCH resource partially overlap in terms of time; or the first PUCCH resource and a second PUCCH resource configured for CSI do not overlap in terms of time, and the first PUCCH resource and the second PUCCH resource each partially overlap at least one third PUCCH resource configured for at least one positive scheduling request (SR) in terms of time, the terminal device determines, based on the ARI, a fourth PUCCH resource in a second PUCCH resource set corresponding to a total payload size for sending the HARQ-ACK, CSI, and at least one SR status.

Abstract: Embodiments of the present invention provide a radio resource management (RRM) information measurement method and apparatus, and a device. The method includes determining at least one piece of configuration information used, by user equipment, for radio RRM measurement, where the configuration information includes at least one type of signal type information used for the RRM measurement, and signal combination information used for the RRM measurement, and sending the configuration information to the user equipment, so that the user equipment performs the RRM measurement according to the configuration information.

Abstract: The present disclosure relates to a method and a device for sending and receiving information. The method includes: determining a frame structure of a serving cell, where a radio frame corresponding to the frame structure includes at least one first special subframe, remaining subframes are downlink subframes, and the first special subframe includes symbols used for uplink transmission and downlink transmission, and a GP; and sending and receiving information in the serving cell based on the frame structure. In the technical solution, because the radio frame structure includes the first special subframe, when spectrum resources are maximally applied to downlink data service transmission, not only performance of massive MIMO is improved, but also the serving cell is enabled to work independently.

Abstract: The present disclosure relates to mobile communications methods for obtaining a reference signal in a wireless communications system. In one example method, a network device obtains a demodulation reference signal sequence corresponding to position offset information, maps the demodulation reference signal sequence to a resource element in a control channel resource set, and sends demodulation reference signal corresponding to the demodulation reference signal sequence.

Abstract: A method and an apparatus for allocating ACKnowledgement (ACK)/Non-ACKnowledgement (NACK) channel resources and processing confirmation information are disclosed. The method includes: The network side determines one physical channel area among multiple physical channel areas to be used by an ACK/NACK channel, and notifies the determined physical channel area to a User Equipment (UE) so as to enable the UE to determine a channel for receiving or sending ACK/NACK information in the determined physical channel area according to a mapping rule. Moreover, the network side may send or receive ACK/NACK information on the physical channel area that includes the ACK/NACK channel. The method and apparatus improve the utilization ratio and flexibility of the ACK/NACK channel, and reduce the probability of conflict generated by the ACK/NACK channel.