Abstract:
This application provides a method and device for generating a subframe, a method for determining a subframe and a user equipment. The method for generating a subframe includes: determining, by a first device, patterns of at least two special subframes used in a broadcast control channel modification period, where guard period GP durations of the at least two special subframes are different; and generating, by the first device, the at least two special subframes. The method enhances flexibility and improves a system resource utilization rate.
Abstract:
In response to a user equipment (UE) sending data to a first network side device over a first channel and to a second network side device over a second channel, a method includes determining that the first channel separately overlaps the second channel and a third channel. The method further includes allocating, according to priorities of the first channel and the second channel, a first transmit power to the first subframe j and a second transmit power to the second subframe i. The first transmit power is less than or equal to a first power upper limit. A sum of the first transmit power and the second transmit power is less than or equal to a first threshold. A sum of third transmit power of the third subframe i+1 and the first power upper limit is less than or equal to a preset second threshold.
Abstract:
Embodiments of the present invention provide a radio resource management method, apparatus, and system and relate to the field of wireless communications technologies. The apparatus includes a determining module, configured to determine that a state of a secondary cell for user equipment (UE) needs to be changed to an uplink-enabled and downlink-disabled state. The apparatus also includes a change module, configured to change the state of the secondary cell, so that the state of the secondary cell is the uplink-enabled and downlink-disabled state, where when the state of the secondary cell is the uplink-enabled and downlink-disabled state, an uplink signal can be received in the secondary cell by a base station to which the secondary cell belongs, a downlink signal can be transmitted by the base station to which the secondary cell belongs only in a subframe for transmitting a discovery reference signal (DRS) in the secondary cell.
Abstract:
According to a data transmission method, device and system provided in the embodiments of the present disclosure, a scheduling node sends, in a first TTI to a scheduled node, a scheduling indication of transmitting data by using a preset spectrum resource; after the scheduled node receives the scheduling indication, when it is determined that data can be transmitted in the second TTI according to the scheduling indication, data is transmitted; and when the scheduling node determines that the scheduled node can transmit data in the second TTI, it is determined that the data that is transmitted in the second TTI by using the preset spectrum resource is data sent by the scheduled node. A power loss of the scheduled node is reduced, waste of a wireless communications resource is reduced, and transmission efficiency is improved. The present disclosure relates to the field of communications technologies.
Abstract:
This application provides a processing method for channel measurement, a base station, and a user equipment, where the method includes: receiving an interference report from a user equipment; and determining, according to the interference report, at least two measurement sets for the user equipment, and notifying the at least two measurement sets to the user equipment. In this application, a measurement set is determined according to an interference report reported by a user equipment, so that the determined measurement set is more adaptive to a current interference situation of the user equipment, and then channel quality of a subframe of the user equipment can be measured accurately.
Abstract:
Embodiments provide a method and a device for using an unlicensed spectrum. In the method, a first access device receives first indication information sent by a second access device, where the first indication information is used to indicate idle time, in which the second access device does not perform data transmission, in a time segment that is reserved for the second access device to perform, by using an unlicensed spectrum, data transmission, and the first access device performs data transmission in the idle time by using the unlicensed spectrum. In a device provided, a first access device includes a receiving unit and a transmission unit.
Abstract:
The present invention provides a method for sending a discovery signal and user equipment. The method comprises determining a frequency-time position with a frequency-time hopping invariant according to the frequency-time hopping invariant, determining an initial frequency-time position of a discovery signal in an initial discovery frame according to the frequency-time position with the frequency-time hopping invariant and an idle frequency-time position in the initial discovery frame, and sending the discovery signal at the initial frequency-time position. The method comprises determining a second frequency-time position of the discovery signal in a next discovery frame following the current discovery frame, and sending the discovery signal at the second frequency-time position.
Abstract:
A method and device for sending a synchronization signal and a method and device for synchronization between base stations, include: determining, by a synchronization source base station according to a synchronization level of the synchronization source base station, a resource for sending an NLRS for clock synchronization between base stations, and according to the determined resource. In this way, one NLRS for clock synchronization between base stations is configured on each synchronization source base station, and the NLRS is sent on a resource determined according to a synchronization level, so that a synchronization base station that acquires the NLRS can determine the synchronization level of the synchronization source base station according to a resource for sending the NLRS.
Abstract:
A method for triggering a terminal to send a sounding reference signal includes: obtaining requirement information of measurement, where the requirement information includes a position and a bandwidth of a frequency band to be measured; selecting a resource for a terminal from at least two preset resource patterns according to the requirement information, where multiple types of resource information are preset in each resource pattern of the at least two preset resource patterns to indicate a resource; and triggering the terminal to utilize the selected resource to send a sounding reference signal.
Abstract:
A radar ranging method includes: obtaining a first signal, where the first signal is a frequency domain signal obtained after low frequency suppression is performed in a beat frequency signal, and the beat frequency signal is a signal obtained by mixing a transmitted signal transmitted by a frequency modulated continuous wave FMCW radar and a received echo signal; performing mean gradient calculation on the first signal in frequency domain to obtain a second signal; and calculating at least one of a speed or a distance of a target object based on a peak signal in the second signal.