Abstract:
This application provides methods for indicating and determining to use a spectrum, and an apparatus. The method includes: sending, in a Pcell, a first wireless network identifier to UE, where a carrier used in the Pcell is a carrier in a non-shared spectrum; and sending, in a Scell, a second wireless network identifier that is the same as the first wireless network identifier to the UE, where a carrier used in the Scell is a carrier in a shared spectrum, and the first wireless network identifier/the second wireless network identifier uniquely identifies one wireless network operator. This application avoids a problem of chaotic user data scheduling performed by a network that is caused by an invalid or erroneous scheduling result that is produced because operators plan cells with a same Cell-ID in a shared spectrum in a same geographical area.
Abstract:
The disclosure provides a method and apparatus for data transmission in a radio network. The method includes: a first access point sends transmission information of a data channel allocated to a user terminal to a second access point, enabling the second access point sending data to the user terminal through the data channel according to the transmission information of the data channel, where the first access point sends no data through the data channel, or sends data through the data channel to other user terminals than the user terminal through the data channel at a transmit power less than or equal to a first power. The technical solution of the present disclosure can avoid channel interference between the second access point and the first access point in a heterogeneous network scenario, and improve transmission performance.
Abstract:
Embodiments of the present invention provide an uplink control information sending method, an uplink control information receiving method, an apparatus, and a system. The method includes: receiving, by a terminal device, channel indication information from an access network device on a physical control channel; determining the channel resource set that is of N channel resource sets and that matches a type or a size of the UCI as a first channel resource set; determining a channel resource that is in the first channel resource set and that is indicated by the channel indication information; and sending uplink control information UCI to the access network device on the channel resource. A quantity of bits that need to be added to the channel indication information in the embodiments of the present invention is less than that in the prior art.
Abstract:
In an uplink information receiving method, a first terminal device receives first indication information sent by a network device, where the first indication information indicates a first uplink resource; and the first terminal device sends uplink information to the network device on a fourth uplink resource, where the fourth uplink resource is a resource other than a second uplink resource in the first uplink resource, the second uplink resource is a subset of a third uplink resource, and the third uplink resource is an intersection between a fifth uplink resource configured for a second terminal device and the first uplink resource.
Abstract:
Embodiments of the present invention provide an uplink information transmission method, a related device, and a communications system. The method includes: receiving, by a terminal device, uplink scheduling information sent by an access network device; determining, by the terminal device based on aperiodic channel state indication information and modulation and coding indication information that are included in the uplink scheduling information, whether to transmit feedback information on an uplink resource indicated by the uplink scheduling information; and if determining to transmit the feedback information on the uplink resource, transmitting, by the terminal device, the feedback information on the uplink resource.
Abstract:
The present disclosure provides a method and an apparatus for transmitting control data. The method includes: determining, by a terminal device, at least one target cell from at least one unlicensed cell; and transmitting, by the terminal device, control data in the target cell. This can implement transmission of the control data on an unlicensed spectrum resource, so that the control data can be transmitted not merely on a licensed spectrum resource, and communication reliability and user experience can be improved. In addition, this can reduce licensed spectrum resource overheads in a communication process, and increase a capacity of a communications system that has a limited quantity of licensed spectrum resources.
Abstract:
Embodiments of the present invention provide a method, where a UE determines that uplink control information to be sent to an eNB in an uplink subframe includes channel state information (CSI) and a scheduling request (SR). The UE further determines a first uplink channel resource for sending the CSI and the SR to the eNB. The first uplink channel resource has an SR sending format and is used to send the CSI. The UE then sends the CSI and the SR to the eNB on the first uplink channel resource in the uplink subframe.
Abstract:
A terminal device and a power allocation method are disclosed, relates to the field of communications network technologies. In embodiments of the present disclosure, at least one uplink channel of a first target subframe numbered i is determined; according to uplink channel information of a second target subframe numbered x, a reserved power that is reserved for a base station or a cell group in which the second target subframe numbered x is located is determined, where the reserved power is determined when uplink channel information of the second target subframe numbered x includes a PRACH or includes only an SRS channel or includes no channel. According to the reserved power, a transmit power of each uplink channel in the at least one uplink channel of the first target subframe numbered i is determined. Solutions provided in the embodiments of the present disclosure are applicable to power allocation.
Abstract:
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. 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.
Abstract:
Embodiments of the present application provide a channel state information transmission method. The method includes: receiving downlink data; determining an uplink subframe used to send feedback information of the downlink data, where a first downlink subframe set associated with the uplink subframe includes a first subset and a second subset, and the first subset is a proper subset of the second subset; determining a channel resource used to send the feedback information, where the channel resource includes a first uplink channel resource or a second uplink channel resource; and if sending of r pieces of CSI is configured to be sent, a codebook size of the feedback information corresponds to the first subset, and the determined channel is the second uplink channel resource, sending the feedback information and t pieces of CSI of the r pieces of CSI on the second uplink channel resource.