Abstract:
Embodiments of the present invention disclose a method, an apparatus, and a system for transmitting control information. The method includes: determining enhanced resource element group numbers in resource blocks, and determining, according to the resource element group numbers, positions of resource elements corresponding to enhanced resource element groups; interleaving the enhanced resource element group numbers, and determining an enhanced control channel element; determining, according to the enhanced control channel element and the positions of the resource elements corresponding to the enhanced resource element groups, positions of resource elements corresponding to the enhanced control channel element; and transmitting corresponding control information on the positions of the resource elements corresponding to the control channel element. The present invention alleviates a problem that channel frequency diversity is poor, and lowers the probability of loss of information of a terminal device.
Abstract:
A signal scrambling method and apparatus, and a signal descrambling method and apparatus are disclosed. In the signal scrambling method, a communications apparatus scrambles a signal by using a scrambling sequence, and sends the scrambled signal. In the signal descrambling method, a communications apparatus receives a signal, and descrambles the signal by using a scrambling sequence. An initial value of the scrambling sequence is determined based on a time unit number corresponding to a frame structure parameter used for transmitting the signal, so that different scrambling sequences can be used to scramble signals that are transmitted by using different frame structure parameters. Therefore, interference randomization can be implemented for signal scrambling, and this can be applicable to various application scenarios in 5G NR to improve performance.
Abstract:
A radio resource configuration method and device are disclosed. The radio resource configuration method includes: after a piece of user equipment UE establishes a connection with a base station according to a system bandwidth in a broadcast message, determining, by the base station for the UE, resource configuration used for communication between the UE and the base station, where the resource configuration includes at least one of a resource allocation bandwidth, a channel state information CSI pilot bandwidth, and a CSI measurement bandwidth, where the resource allocation bandwidth is a bandwidth used to generate resource block allocation information in downlink control information; and sending, by the base station to the UE by using dedicated signaling or a common message, the resource configuration determined for the UE and used for communication between the UE and the base station.
Abstract:
Methods and systems for group common control channel implementation and use are provided. An embodiment a method in a base station for signaling group common control channel information is provided. The method includes determining control information common to a group of user equipment (UEs), the control information comprising time-frequency locations for at least one of a plurality of data channels and a plurality of control channels. The control information formatted in a Downlink Control Information (DCI) format. The method also includes encoding the control information in a group common control channel to generate encoded control information. The method also includes transmitting the encoded control information to the group of UEs.
Abstract:
Embodiments of the present invention provide a control channel resource transmission method including: obtaining, by a user equipment, a configuration parameter in a candidate control channel set according to a preset protocol and/or higher-layer signaling sent by a base station, where the higher-layer signaling is used to notify the configuration parameter; determining an antenna port according to the obtained configuration parameter; receiving, by using the antenna port, a control channel or a control channel element sent by the base station; and determining, by the base station, the antenna port according to the same configuration parameter as that of the user equipment, and sending, by using the antenna port, the control channel or the control channel element to the user equipment. The embodiments of the present invention are applicable to control channel resource transmission.
Abstract:
Embodiments of the present invention disclose a method, an apparatus, and a system for transmitting control information. The method includes: determining enhanced resource element group numbers in resource blocks, and determining, according to the resource element group numbers, positions of resource elements corresponding to enhanced resource element groups; interleaving the enhanced resource element group numbers, and determining an enhanced control channel element; determining, according to the enhanced control channel element and the positions of the resource elements corresponding to the enhanced resource element groups, positions of resource elements corresponding to the enhanced control channel element; and transmitting corresponding control information on the positions of the resource elements corresponding to the control channel element. The present invention alleviates a problem that channel frequency diversity is poor, and lowers the probability of loss of information of a terminal device.
Abstract:
The present invention provides a method for processing an enhanced physical downlink control channel (EPDCCH), a network-side device, and a user equipment. The method includes: notifying a user equipment (UE) of M physical resource block (PRB) sets used for EPDCCH transmission and N reference signal (RS) configurations used for EPDCCH downlink control information (DCI) rate matching and/or EPDCCH resource mapping, and notifying the UE of correspondence between the M PRB sets and the N RS configurations, where N is a positive integer greater than 1, and M is a positive integer; and performing the EPDCCH DCI rate matching and/or the EPDCCH resource mapping according to the correspondence between the M PRB sets and the N RS configurations.
Abstract:
Embodiments of the present invention relate to the technical field of communications, and provide a method and device for transmitting a reference signal. The method for transmitting a reference signal comprises: a base station determining an antenna port of a reference signal corresponding to a broadcast channel; the base station determining a complex valued modulation symbol of the reference signal according to a first parameter of the reference signal, wherein the first parameter of the reference signal is determined by the number of resource blocks occupied by the broadcast channel; and the base station transmitting the determined complex valued modulation symbol of the reference signal to a user terminal on the determined antenna port of the reference signal. The present invention can be used in an LTE wireless communication system.
Abstract:
Embodiments of the present invention disclose a method and an apparatus for processing information. A base station configures at least one physical uplink control channel format for a user equipment and then sends downlink control information of a physical downlink control channel to the user equipment, and finally activates or releases, through bit information configured in the downlink control information of the physical downlink control channel, the at least one physical uplink control channel format for the user equipment to feed back channel state information.
Abstract:
A time domain resource configuration method, an apparatus, and a system are provided, to send, by a network device, time domain resource allocation indication information to a terminal device. The time domain resource allocation indication information is used to indicate N1 time domain resource allocations, where N1 is an integer greater than or equal to 1. The N1 time domain resource allocations may be used to determine N2 candidate time domain resources, where N2 is an integer greater than N1.