Abstract:
A method and an apparatus for allocating ACKnowledgement (ACK)/Non-ACKnowledgement (HACK) 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.
Abstract:
Embodiments of the present invention provide a bandwidth allocation method and apparatus, user equipment, and a base station. The method includes: receiving, by user equipment, virtual bandwidth configuration information, where the virtual bandwidth configuration information is used for indicating a configuration of a virtual bandwidth; and performing, by the user equipment, signal reception and/or signal processing according to the virtual bandwidth indicated by the virtual bandwidth configuration information, where each virtual bandwidth is a part or all of a downlink maximum available bandwidth or a downlink transmission bandwidth, and the downlink maximum available bandwidth is a maximum bandwidth available for downlink transmission. In the embodiments of the present invention, reduction of overheads and reduction of complexity of signal reception and signal processing are implemented, and overheads and complexity of signal reception and processing feedback can be flexibly controlled.
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:
A method for detecting a discovery reference signal includes: acquiring, by a user equipment, configuration information of a discovery reference signal, where the configuration information includes time-frequency resource information and sequence information of the discovery reference signal; receiving, by the user equipment, a first discovery reference signal sent by a base station; and determining a candidate time-frequency resource location of the discovery reference signal according to the time-frequency resource information, determining a candidate sequence of the discovery reference signal according to the sequence information, and, by detecting the candidate sequence of the discovery reference signal at the candidate time-frequency resource location, determining an actual time-frequency resource location of the first discovery reference signal and/or determining an actual sequence of the first discovery reference signal.
Abstract:
A method and a device for configuring a central subcarrier are disclosed. The method comprises: mapping a first downlink control channel onto a part (f1) of a downlink bandwidth (fW) of a cell, and configuring a first virtual central subcarrier in f1, where f1 is different or partly different from a bandwidth f2 mapped to a second downlink control channel, an overlap between f1 and f2 is at least one subcarrier, or at least one idle subcarrier exists between f1 and f2, or at least one non-idle subcarrier and at least one idle subcarrier exist between f1 and f2; the first virtual central subcarrier is located on a grid position of a central frequency, a distance between the first virtual central subcarrier and a second virtual central subcarrier configured in f2 is an integer multiple of a frequency domain width of the subcarrier.
Abstract:
A method, an apparatus and a system for selecting a downlink primary carrier for transmitting data are disclosed. The method includes the following steps: A terminal obtains primary carrier selection information configured by a network; and the terminal determines a downlink carrier corresponding to an uplink carrier of the terminal as a downlink primary carrier for transmitting data according to the primary carrier selection information. In the embodiments of the present invention, the network selects a downlink carrier corresponding to an uplink carrier of the terminal as a downlink primary carrier for transmitting data. The terminal needs to detect only the downlink primary carrier, and the downlink carrier needs to be switched or detected only if the primary carrier receives a signaling message for detecting or receiving other carriers, so it is not necessary to switch or detect the downlink carrier frequently, which reduces battery consumption of the terminal.
Abstract:
Embodiments of the present invention provide a channel measurement method and apparatus. The method includes: configuring, for each frequency band of N frequency bands having a same carrier frequency, according to a measurement demand, reference signal information corresponding to each frequency band, so that reference signal densities included in configured reference signal information of at least two frequency bands of the N frequency bands are different, where N is a positive integer greater than or equal to 2, the reference signal information refers to information required to generate a reference signal, the reference signal density refers to a distribution density on a time domain or a distribution density on a frequency domain of the reference signal or a pattern of the reference signal; and notifying a user equipment of the reference signal information, so that the user equipment performs channel measurement according to the reference signal information.
Abstract:
A non-terrestrial network communication method includes: a terminal receives, from a first network device, a message indicating that a satellite that provides a service for a first cell is updated to a second satellite, where the first message includes information used to determine a coverage area of a second cell served by the second satellite on the ground. The terminal determines, based on a location of the terminal and the coverage area of the second cell on the ground, whether the terminal is located within or outside the coverage area.
Abstract:
A communication method and device is provided where a network device can learn of a synchronization signal/physical broadcast channel block selected by a terminal device. The method includes receiving, from a network device, a first synchronization signal/physical broadcast channel block located at a first frequency domain position, and receiving, from the network device, a second synchronization signal/physical broadcast channel block located at a second frequency domain position, determining random access channel occasions corresponding to the second frequency domain position, determining, in the random access channel occasions corresponding to the second frequency domain position and based on a sending status of a synchronization signal/physical broadcast channel block located at the second frequency domain position, a random access channel occasion to which the second synchronization signal/physical broadcast channel block is mapped, and performing random access on the random access channel occasion to which the second synchronization signal/physical broadcast channel block is mapped.
Abstract:
Embodiments of this application provide a control channel configuration method, a base station, and a terminal device. The method includes: determining, by a base station, a configuration of a time-frequency resource unit from at least two configurations of a time-frequency resource unit of a control channel; and sending, by the base station, indication information to a terminal device, where the indication information is used to indicate the configuration of the time-frequency resource unit, and the at least two configurations of a time-frequency resource unit include a first configuration and a second configuration. In the embodiments of this application, the base station can flexibly configure the time-frequency resource unit of the control channel. In addition, flexibly configuring a time-frequency resource unit can reduce a probability that time-frequency resource units of different structures are blocked, thereby reducing complexity of detecting the control channel by the terminal device.