A data transmission method and apparatus are disclosed. The method includes: determining, by a source base station of a terminal in a handover process, first data and a radio air interface protocol sequence number of a data unit used to carry the first data, where the first data includes data that is not acknowledged by a terminal for correct reception during data transmission between the source base station and the terminal. The method further includes sending, by the source base station, the first data and the radio air interface protocol sequence number to a target base station; where the core network connected to the target base station is different from the core network connected to the source base station.

Novel techniques for pooling the available transmit power of a beam across the subcarriers that are or that are scheduled to be in use (and not across all available subcarriers) are disclosed. The scheduled subcarriers may be located in the same or different carriers of a modulation transmitter modulation system, and the pooled transmit power may be allocated or distributed across the scheduled subcarriers of the beam. Modulation symbols or resource elements may be transmitted in accordance with allocated, per-subcarrier power budgets, thereby maximizing the SNIR of signals that are transmitted in the beam via the scheduled subcarriers. Additionally, the allocation of the pooled transmit power to various subcarriers may continuously and/or dynamically vary over time, e.g., based on traffic demands, interference characteristics, etc., as well as based on subsequent scheduling of subcarriers to transmit subsequent modulation symbols or resource elements.

Apparatuses, methods, and systems are disclosed for downlink assignments for downlink control channels. One method includes, in response to an assignment group comprising a first assignment: determining a first data channel allocation comprising resources allocated to a first data channel; determining a first DMRS symbol location associated with the first data channel based on the first assignment, a first set of OFDM symbols, and a second set of OFDM symbols; and decoding the first data channel. The method includes, in response to the assignment group comprising a second assignment: determining a second data channel allocation comprising resources allocated to a second data channel; determining a second DMRS symbol location associated with the second data channel based on the second assignment, the first set of OFDM symbols, and the second set of OFDM; and decoding the second data channel.

Provided are an information determination method and device, an information adjustment method, a threshold usage method, a terminal, and a storage medium. The information determination method includes: determining a second threshold of a target subcarrier spacing according to the number of cells that meet a first set condition, the total number of downlink cells, the number of supported cells reported by a terminal, and a first threshold.

Presented are systems and methods for parameter estimation. A wireless communication device may determine that a first number of PDCCH transmissions, scheduled from a wireless communication node, that are associated and are PDCCH candidates for blind detection decoding, is K, wherein K is an integer larger than 1. The wireless communication device may determine a second number of PDCCH candidates to be counted for monitoring. The wireless communication device may count the second number of PDCCH candidates for monitoring with respect to the first number of PDCCH transmissions.

A wireless device (e.g., a UE or a base station) may identify a first subcarrier mapping associated with one or more redundant subcarriers. The one or more redundant subcarriers may correspond to one or more UWs in a UW-OFDM waveform. The wireless device may identify a second subcarrier mapping associated with one or more reference signals. A simultaneous application of the first subcarrier mapping and the second subcarrier mapping may be associated with one or more collisions. The wireless device may modify at least one of the first subcarrier mapping or the second subcarrier mapping to eliminate the one or more collisions. The wireless device may generate the UW-OFDM waveform based on the modified at least one of the first subcarrier mapping or the second subcarrier mapping. The wireless device may transmit a signal based on the generated UW-OFDM waveform.

The present invention has an object to provide a communication system capable of minimizing effects due to a delay among a plurality of base station devices as much as possible in scheduling for communication with a terminal device in cooperation among the plurality of base station devices. Cells1 to 3 can each perform scheduling without using information for scheduling notified from one or a plurality of cells among pieces of information for scheduling notified from other cells. For example, in a case where an interface between the cell1 and cell3 has a large delay amount, the cell1 performs scheduling without using information S13 notified to the cell1 by the cell3, and the cell3 performs scheduling without using information S11 notified to the cell3 by the cell1.

A coded bit transmission method and apparatus, to improve spectrum resource utilization and a data rate of a Wi-Fi system, where the method includes: A sender performing channel coding on information bits according to a used MCS, to generate coded bits; and the sender distributing the coded bits to a plurality of channel sets or a plurality of resource units according to a distribution rule. The MCS is an MCS used for each of the plurality of channel sets, or an MCS used for each of the plurality of resource units.

Various schemes pertaining to optimization of distributed resource unit (RU) tone plans for peak-to-average power ratio (PAPR) reduction in 6 GHz low-power indoor (LPI) systems are described. An apparatus distributes a plurality of subcarriers of a RU over a bandwidth to generate a distributed-tone RU (dRU) or a distributed-tone multi-RU (dMRU). The apparatus then communicates with a communication entity using the dRU or the dMRU. In distributing the plurality of subcarriers of the RU to generate the dRU or the dMRU, the apparatus distributes the plurality of subcarriers of the RU with a predefined span over each 20 MHz frequency segment or subblock in the bandwidth and with a gap of at least a minimum size around a center direct-current (DC) tone in a distribution pattern of the plurality of subcarriers to result in reduction in a PAPR in communicating with the communication entity.

Embodiments described herein relate to real-time streaming of large quantities of time critical data over multiple distinct networks from a communications device. More specifically, embodiments described herein may address challenges and problems of maintaining consistent data reception quality when faced with the anomalies of a moving sender that is sending data using a relatively unstable method. This may be achieved by converting single source data into multiple data streams, placing them in transport buffers and storing them for forwarding.