Abstract:
The present invention provides a radio signal measurement method and apparatus. The radio signal measurement method includes: receiving a first subframe, where the first subframe includes a first resource and a second resource; and determining a first measurement quantity of a measured cell according to received power of at least some resource elements REs on the first resource, where the measured cell is a cell in which a signal is sent on each of a time domain resource occupied by the second resource, and the time domain resource occupied by the second resource includes a time domain resource occupied by the first resource. Embodiments of the present invention further provide a corresponding apparatus. The technical solutions provided in the embodiments of the present invention can suppress severe near-end interference existing in an unlicensed secondary serving cell.
Abstract:
The present invention discloses methods for receiving and sending a control channel, user equipment, and a base station. The method for receiving a control channel includes: obtaining time-frequency resource information and first information of the control channel; determining a search space of the control channel according to the time-frequency resource information and the first information; and receiving the control channel in the search space. By using the methods, the user equipment and the base station according to embodiments of the present invention, the search space of the control channel can be determined according to the time-frequency resource information and the first information of the control channel, so that receiving and sending of the control channel can be implemented and a capacity of the control channel can be expanded, thereby improving system scheduling efficiency and flexibility and further improving user experience.
Abstract:
The present invention discloses methods for receiving and sending a control channel, a user equipment, and a base station. The method for receiving a control channel includes: obtaining time-frequency resource information and first information of the control channel; determining a search space of the control channel according to the time-frequency resource information and the first information; and receiving the control channel in the search space. By using the methods, the user equipment and the base station according to embodiments of the present invention, the search space of the control channel can be determined according to the time-frequency resource information and the first information of the control channel, so that receiving and sending of the control channel can be implemented and a capacity of the control channel can be expanded, thereby improving system scheduling efficiency and flexibility and further improving user experience.
Abstract:
The present invention discloses a method and a terminal for receiving and sending scheduling information, and relates to the field of communications technologies. The method comprises: obtaining, by a terminal, transmission mode information of each carrier of N carriers configured by a network device, where N is a natural number greater than 1; determining a set of candidate downlink control information DCI formats according to the transmission mode information, where the set of candidate DCI formats includes at least a first DCI format and a second DCI format, where a physical downlink control channel PDCCH corresponding to the first DCI format carries scheduling information of at least two carriers of the N carriers, and a PDCCH corresponding to the second DCI format carries scheduling information of one carrier of the N carriers; and receiving and detecting a PDCCH corresponding to each DCI format in the set of candidate DCI formats.
Abstract:
The present invention discloses a control information transmission method, a user equipment, and a base station. The method includes: obtaining a data channel transmission mode configured by a base station; determining a downlink control information DCI format set corresponding to the transmission mode, where the DCI format set includes a first DCI format, and the first DCI format includes single-codeword control information; and detecting, according to the DCI format set, control signaling sent by the base station and corresponding to the DCI format set. The user equipment includes a first obtaining module, a first determining module, and a detecting module. The base station includes a configuring module, a first determining module, and a first sending module.
Abstract:
Embodiments of the present invention provide a communication method for a carrier aggregation system. The communication method includes receiving physical downlink share channel PDSCH information sent by a base station through a subframe n of a secondary cell. If a subframe n of a primary cell is a downlink subframe, an ACK/NACK of the sent PDSCH information is fed back on a subframe m or a subframe p of the primary cell.
Abstract:
The present invention discloses a method and device for transmitting ACK/NACK indication information. A network-side device configures at least two carriers for a UE; transmits PDCCH information to the UE; selects one of at least two timing relationships as a first timing relationship; determines a corresponding third uplink subframe and first carrier; indicate related information corresponding to the third uplink subframe and the first carrier to the UE; in the third uplink subframe of the first carrier, determines a first channel resource, and indicates the first channel resource to the UE; and receives an ACK/NACK fed back by the UE on the allocated resource.
Abstract:
Embodiments of the present invention provide a detecting method, a transmitting method and an apparatus for a common control channel. The detecting method includes: determining a candidate resource set within virtual downlink resources of a current cell. The candidate resource set can include at least one candidate resource carrying a common control channel of the current cell. A detection is performed on at least one candidate resource in the candidate resource set, so as to acquire the common control channel of the current cell. In the embodiments of the present invention, a selection range of resources for transmitting a common control channel is extended, so that inter-cell interference of the common control channel can be coordinated, and a detection performance of the common control channel can be improved.
Abstract:
Embodiments of the present invention provide a method for detecting and sending control signaling, a user equipment, and a base station. The detecting method includes: obtaining, by a UE, a transmission mode of a data channel configured by a base station; determining, by the UE, a first DCI format and a second DCI format that are corresponding to the transmission mode, where PDCCH information corresponding to the first DCI format is transmitted in a precoding-based mode, and PDCCH information corresponding to the second DCI format is transmitted in a single-antenna port mode or transmit diversity mode based on non-precoding; and detecting, by the UE and in a subframe, PDCCH information corresponding to the first DCI format and the second DCI format according to a mode in which the PDCCH information is transmitted.
Abstract:
The present invention discloses a method, a user equipment, and a base station for transmitting information. The method includes receiving a downlink assignment sent by a base station. The downlink assignment includes a trigger flag that is used to indicate a trigger state of aperiodic channel state information (CSI). An uplink resource used to send the aperiodic CSI is determined. The aperiodic CSI to the base station is sent on the uplink resource according to the trigger flag.