Abstract:
An information transmission method, an apparatus, and a system are disclosed. A first base station may identify, according to indication information, global information and local information in uplink information sent by user equipment. If the indication information indicates that the uplink information includes the global information, the first base station uploads the global information to a core network device. If the indication information indicates that the uplink information includes the local information, the first base station directly delivers the local information to a neighboring base station to cause the neighboring base station to deliver the local information to user equipment in a cell covered by the neighboring base station.
Abstract:
Embodiments of the present invention provide a data transmission method, a base station, and a terminal device. The method includes: determining first indication information, where the first indication information is used to indicate a coding method that needs to be used for a service channel of to-be-transmitted data; and sending control signaling to a terminal device, where the control signaling includes the first indication information. In the embodiments of the present invention, the base station sends the first indication information to the terminal device by using the control signaling, so that the terminal device determines, according to the first indication information, the coding method that needs to be used for the service channel over which the to-be-transmitted data is transmitted.
Abstract:
The present disclosure discloses a method and an apparatus for generating a long training sequence and sending a signal, and belongs to the field of wireless communications. The method includes: obtaining a plurality of long training sequences according to a system parameter and a preset sequence construction formula, wherein the plurality of long training sequences include a plurality of basic training sequences and a plurality of shift training sequences obtained according to cyclic shift of the basic training sequences; and configuring a mapping rule between a terminal device and a long training sequence, for enabling the terminal device to select a long training sequence according to the mapping rule as a long training sequence for sending a signal. By adopting the present disclosure, energy consumption of the receiving end may be reduced and accuracy of channel estimation may be improved.
Abstract:
A method for sending system information comprises: a terminal receives a broadcast message from a network device, wherein the broadcast message comprises indication information for an system information (SI) and wherein that the indication information is for indicating that whether the SI is being broadcasted or not; and in case that the indication information indicates that the SI is not being broadcasted, the terminal sends a system information request to the network device for acquiring the SI.
Abstract:
The present disclosure relates to data transmission methods and communications devices. One example communications device includes a transceiver. The transceiver is configured to send a transmission frame to a second communications device, where the second communications device acquires data information in the transmission frame, and the transmission frame includes a first part and a second part. The transceiver is configured to send the first part of the transmission frame by using a first quantity of subcarriers. The transceiver is configured to send the second part of the transmission frame by using a second quantity of subcarriers, where the first quantity is not equal to the second quantity. The transceiver is further configured to perform a next time of information transmission with the second communications device.
Abstract:
One example communication method includes a distributed unit (DU) receives a first indicator from a central unit (CU), where the first indicator is used to indicate that first system information is to be broadcast by the DU, the first system information is obtained by the DU from the CU and stored at the DU previously. The DU broadcasts a second indicator and the first system information, where the second indicator indicates that the first system information is being broadcast.
Abstract:
A coding scheme determining method and apparatus are provided. In various embodiments, a base station device sends, to a terminal device, higher layer control signaling, physical layer control signaling, or a synchronization signal that carries coding scheme indication information. In some embodiments, a terminal device sends, to a base station device, a capability information report message that carries coding scheme indication information, so that the base station device or the terminal device can clearly and flexibly indicate a coding scheme. At least one information block size IBS greater than or equal to a preset first specified value X is determined, and an IBS is selected from the at least one IBS to code an information block of bits or a code block of the information block of bits. X and a coding scheme are determined by a scenario, information type, and/or service type.
Abstract:
Embodiments of this application provide a resource management indication method and apparatus. The method includes: generating, by a base station, radio resource management RRM measurement manner indication information, where the RRM measurement manner indication information is used to indicate an RRM measurement manner; and sending, by the base station, the RRM measurement manner indication information to a terminal. In the embodiments of this application, the base station can flexibly indicate the RRM measurement manner to the terminal, so that a more proper RRM measurement manner is used, to improve measurement efficiency and reduce measurement overheads.
Abstract:
Embodiments of the present disclosure relate to a communication method, user equipment, and a base station. The method includes: selecting, by user equipment, a DMRS from a demodulation reference signal DMRS list; sending, by the user equipment to a base station through a first channel, first data that carries the DMRS; receiving, by the user equipment through a second channel, second data that is sent by the base station and that carries feedback information, where a resource on which the second channel is located is determined based on the DMRS and a resource on which the first channel is located, or receiving, by the user equipment through a second channel, second data that is sent by the base station and that carries information about a resource on which a third channel is located, where a resource on which the second channel is located is determined based on the DMRS and a resource on which the first channel is located, and receiving, by the user equipment through the third channel, third data that is sent by the base station and that carries feedback information; and determining, by the user equipment, that the feedback information is information fed back by the base station for the first data. In the embodiments of the present disclosure, feedback information of a plurality of user equipments can be distinguished from each other while resource utilization is ensured.
Abstract:
A data transmission method and apparatus are provided, which includes: determining, by a transmitting device, a long training sequence set; determining at least one receiving device set, where the receiving device set includes at least one receiving device in a communications system; determining a first mapping relationship, where the first mapping relationship is a mapping relationship between the at least one receiving device set and at least one set-use long training sequence in the long training sequence set; determining, according to a target receiving device set and the first mapping relationship, a target set-use long training sequence corresponding to the target receiving device set, and performing encapsulation processing on first data to generate a first data packet, where a long training sequence field in a physical layer of the first data packet carries a first long training sequence symbol.