Abstract:
The present disclosure provides a data transmission method and apparatus. The method includes: determining S transmission subbands for a user equipment (UE), where the S transmission subbands do not overlap each other, and S is an integer greater than or equal to 2; sending a respective reference signal on each of the S transmission subbands, so that the UE selects at least two transmission subbands from M transmission subbands in the S transmission subbands based on channel quality measurements of the reference signals on the M transmission subbands, and accesses the at least two transmission subbands, where M is an integer greater than or equal to 2 and less than or equal to S; and sending a data channel signal to the UE on the at least two transmission subbands.
Abstract:
Embodiments of the present invention provide a data sending method and apparatus, and relate to the wireless communications field, so as to effectively ensure high reliability for transmitting uplink data and effectively reduce a delay in transmitting uplink data. Resource configuration information sent by a base station is received, and uplink data is sent to the base station according to the resource configuration information. The data sending method and apparatus are used to transmit data.
Abstract:
The present invention relates to the field of communications, and in particular, to a method and related equipment for sending signaling. The method includes: when a power consumption preference of a user equipment is changed to lower power consumption, determining whether a first timer used for restricting sending of a lower power consumption preference indication expires, and if a determination result is yes, sending a lower power consumption preference indication to a base station; and when the power consumption preference of the user equipment is changed to higher power consumption, sending a higher power consumption preference indication to the base station, or determining whether a second timer used for restricting sending of a higher power consumption preference indication expires, and if a determination result is yes, sending a higher power consumption preference indication to the base station. The present invention may improve user experience.
Abstract:
Embodiments of the present invention provide an information transmission method, a device, and a system. The method includes: determining, by UE, a type of a coverage area in which the UE is located, where the type of the coverage area is a first coverage area or a second coverage area; and receiving, by the UE by using a corresponding beam according to the type of the coverage area in which the UE is located, the broadcast information sent by the network device. Therefore, when the UE is covered in the different coverage areas, the broadcast information sent by the network device can be received, and this ensures normal communication between the UE and the network device.
Abstract:
A wireless network scheduling method, an access device, and a wireless network are provided. Implementation of the method includes: determining, by a second access device, a serving cell subset to which a terminal belongs; and sending, by the second access device, downlink data and downlink scheduling information to the first access device corresponding to the serving cell in the serving cell subset, where the downlink scheduling information is used to instruct the first access device to send the downlink data to the terminal.
Abstract:
Embodiments of the present invention provide an uplink signal transmission method, including: when detecting, by listening, that an unlicensed band is in an idle state, determining, by a radio access network device, an available subframe on the unlicensed band, where the available subframe includes a subframe n; sending, by the radio access network device, an uplink scheduling instruction to user equipment in the subframe n by using the unlicensed band. The uplink scheduling instruction is used to instruct the user equipment to send an uplink signal in a subframe n+i by using the unlicensed band or a licensed band, n and i are integers, n≧0, and i≧1; and receiving, by the radio access network device in the subframe n+i by using a band corresponding to the uplink scheduling instruction, the uplink signal sent by the user equipment.
Abstract:
An interference cancellation method and device are disclosed. In a process of performing cell reestablishment or cell handover, for any interference cancellation parameter previously received from a network-side device, a user terminal can continue to apply the interference cancellation parameter to perform an interference cancellation operation according to a specified first interference cancellation parameter application rule or first instruction information delivered by the network-side device, or release or no longer apply the interference cancellation parameter. In this way, a currently existing problem that a user terminal cannot know how to process a previously received interference cancellation parameter in a process of performing cell reestablishment or cell handover can be resolved, and further, an objective of improving an interference cancellation effect can be achieved.
Abstract:
The present invention provides a channel monitoring method and device. The method includes: receiving, by user equipment (UE), a first notification message sent by a base station, where the first notification message includes usage information of a frequency resource of a second carrier; determining, by the UE according to the first notification message, whether the frequency resource of the second carrier is in an available state; and if the UE determines that the frequency resource of the second carrier is in the available state, monitoring a PDCCH corresponding to the second carrier; otherwise, stopping monitoring a PDCCH corresponding to the second carrier, where the second carrier is a carrier on which the UE operates on a discontinuously occupied frequency resource. According to the foregoing method, the UE can properly use an unlicensed frequency to communicate with the base station, and meanwhile reduce power consumption of the UE.
Abstract:
Embodiments of the present invention provide a method and system for contending for a channel of an unlicensed frequency band, and an apparatus. The method for contending for a channel of an unlicensed frequency band in the present invention includes: acquiring, according to contention timeslot configuration information, a condition for starting a contention timeslot, and starting the contention timeslot when the condition is met, where the contention timeslot configuration information includes at least one of the following configurations: a time configuration of the contention timeslot, a contention backoff time, a terminal feedback uplink configuration, or a channel available condition; and performing a corresponding operation within the contention timeslot according to the time configuration of the contention timeslot to contend for a channel of an unlicensed frequency band, so as to implement data transmission on the unlicensed frequency band.
Abstract:
Embodiments of the present invention disclose a random access method and an apparatus. According to the random access method disclosed in the embodiments, first downlink assignment information is obtained in a manner of a mapping relationship between first downlink assignment information and a preamble, where the first downlink assignment information is downlink assignment information used by a random access response message, and scheduling signaling of the random access response message does not need to be retransmitted by using the PDCCH channel, thereby resolving problems of a channel resource waste and an access delay in an existing random access method. The problems are caused because the PDCCH channel is used to retransmit the scheduling signaling of the random access response message.