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 communication method, a device, and an apparatus are provided. A network device determines N configuration parameter sets configured for a terminal device Each of the N configuration parameter sets includes a parameter for detecting a candidate downlink control channel, and N is an integer greater than or equal to 2. The network device sends information about the N configuration parameter sets to the terminal device. Each of the N configuration parameter sets includes at least one of the following parameters: a bandwidth part, a search space parameter, a candidate downlink control channel detection period, a control resource set parameter, or a time domain resource set corresponding to the candidate downlink control channel. The network device may configure the N configuration parameter sets for the terminal device.
Abstract:
This application provides a wireless communication method, a terminal device, and a network device. The wireless communication method includes: A terminal device selects, based on a first parameter, a value set from a first value set and a second value set that are of slot offsets and that are configured by a network device, wherein all slot offsets in the first value set are greater than a first threshold, and at least one slot offset in the second value set is equal to the first threshold; and receive DCI, wherein a slot offset carried in the DCI belongs to the selected value set, and the slot offset is used to indicate an offset in a quantity of slots of a PDSCH scheduled by the DCI relative to the DCI. According to the technical solutions in this application, the different value sets correspond to different data channel scheduling mechanisms.
Abstract:
The present disclosure discloses an example signal transmission method and an example terminal device. One example signal transmission method includes monitoring, by a terminal device and based on a size of first downlink control information (DCI), the first DCI and second DCI that are sent by a network device, where the first DCI is carried on a power saving signal shared by a plurality of terminal devices including the terminal device, and the second DCI is carried on a terminal device specific power saving signal. It is determined by the terminal device and based on at least one of the first DCI or the second DCI, whether to monitor a data channel in a first time period.