Abstract:
Example information transmission methods and apparatus are described. One example method includes receiving higher layer signaling and downlink control information. A time-frequency resource corresponding to scheduling request (SR) information and a time-frequency resource corresponding to hybrid automatic repeat request (HARQ) information are respectively determined based on the higher layer signaling and the downlink control information; The SR information is sent by using a first time-frequency resource, and the HARQ information is sent by using a second time-frequency resource. The first time-frequency resource is a part of the time-frequency resource corresponding to the SR information and does not overlap the second time-frequency resource in time domain, and the second time-frequency resource is the time-frequency resource corresponding to the HARQ information. Alternatively, the HARQ information is sent by using the time-frequency resource corresponding to the HARQ information, where the SR information is not sent.
Abstract:
Embodiments of the present disclosure relate to the field of communications technologies, and provide an uplink control channel resource configuration method and an apparatus, to improve utilization of a frequency domain resource of an uplink channel. The method includes: determining, by a base station, resource configuration information, and sending, by the base station, the resource configuration information to UE, where the resource configuration information includes a first hop resource of a first uplink control channel (PUCCH), a frequency domain resource offset of the first PUCCH, and/or a bandwidth of a bandwidth part (BWP) used by the user equipment UE, and the first PUCCH is a PUCCH of the UE.
Abstract:
Embodiments of this application provide an uplink power control method and a terminal. The method includes: obtaining, by a terminal, a power control impact factor, where the power control impact factor includes at least one of the following: beamforming information, a subcarrier spacing, a time length, or a service type; determining, by the terminal, a transmit power of an uplink channel based on the power control impact factor; and sending, by the terminal, the uplink channel at the transmit power of the uplink channel. The embodiments can improve uplink power control precision.
Abstract:
Embodiments of the present disclosure include example device-to-device communication methods and terminal devices. One example method includes determining, by a terminal device, a first resource, where the first resource is some time-frequency resources in a first resource set, where the first resource set is all time-frequency resources that can be used to detect a first transmission resource. The first transmission resource is a spectrum resource used to transmit first data. The terminal device can then perform detection for the first transmission resource in the first resource. In some instances, the terminal device can then send first data on the first transmission resource.
Abstract:
The invention relates to device-to-device (D2D) communications technologies, and in particular, to a method, apparatus, and device for control signaling processing. A method of receiving a control signaling is applied to a D2D communication process. The method receives, by a second device, a control signaling sent by a first device, where the control signaling carries attribute identification information of service data that the first device needs to send. The method determines, by the second device according to the attribute identification information, whether the service data is data required by the second device. The method receives, by the second device, the service data if the service data is the data required by the second device. The method, apparatus, and device for control signaling processing of the invention are applied to selectively receive or demodulate service data, and reduce reception complexity and power consumption of a receiver user equipment (UE).
Abstract:
Embodiments of the present disclosure provide a device to device (D2D) communication method and apparatus, to resolve at least a problem of a low success rate of discovery between user equipments in the prior art. The method includes: determining, by a first user equipment (UE), first signaling to be sent, where the first signaling includes one or a combination of the following information: a transmission probability, a quantity of retransmission times, a transmission period, a type of a cyclic prefix (CP), a transmit power, a current quantity of hops, a quantity of antenna ports, a transmission mode, a bandwidth of a D2D link, a D2D link frame number, time division duplexing (TDD) uplink and downlink configuration information, or information indicating whether the first UE is within a network; and sending, by the first UE, the first signaling to second UE using the D2D link.
Abstract:
A method includes: determining, by a first device, a frequency hopping parameter and a quantity of retransmission times of to-be-transmitted data, wherein the frequency hopping parameter comprises an initial frequency hopping location, a bandwidth of the to-be-transmitted data, a frequency hopping offset, and a total frequency hopping bandwidth; determining, by the first device, a first start location of the to-be-transmitted data according to the quantity of retransmission times of the to-be-transmitted data and the frequency hopping parameter; and sending, by the first device, the to-be-transmitted data to a second device according to the first start location and the bandwidth of the to-be-transmitted data.
Abstract:
Embodiments of the present disclosure provide a resource scheduling method, apparatus, and system. The embodiments of the present disclosure relate to the field of communications technologies and are used to resolve a problem of resource scheduling in Device-to-Device (D2D) communication. The method includes: sending, by a first node, first control signaling to a second node, where the first control signaling includes information about a resource for second control signaling transmission and information about a resource for data transmission; and receiving, by the second node, the first control signaling sent by the first node, and sending second control signaling to a third node by using the resource for the second control signaling transmission, and sending data to the third node by using the resource for the data transmission. The resource scheduling method, apparatus, and system can be applied to a data transmission device requiring relatively high delay performance.
Abstract:
The present invention discloses a resource reuse apparatus, user equipment, and a resource reuse method. The method includes: monitoring, by first user equipment, idle resources so as to obtain a first idle resource set; claiming, in a first cycle, to use a first resource, where the first resource is a resource in the first idle resource set; determining whether the first resource exists in a first claimed resource set, where the first claimed resource set is a set of resources that are claimed to be used by another user equipment except the first user equipment; and if the first resource exists in the first claimed resource set, claiming, in a second cycle, to use a second resource, where the second resource is a resource, in the first idle resource set, that is different from the first resource; or reclaiming a resource after at least one cycle following the first cycle.
Abstract:
A sending parameter of a preamble is compared with at least one preset parameter threshold to obtain a comparison result. A channel priority is determined in accordance with the comparison result. When a plurality of uplink channels are required for simultaneous transmission, the transmitting powers of the plurality of uplink channels is determined in accordance with the channel priority; and the plurality of uplink channels comprising a PRACH. This scheme adopts an unfixed strategy for the ranking of the PRACH in the channel priority, and determines the ranking of the PRACH in the channel priority by comparing the sending parameter of the preamble with a preset parameter threshold or receiving a signaling from a base station.