Systems and methods are provided for optimizing the scheduling of Orthogonal Frequency-Division Multiple Access (OFDMA) transmissions in the downlink (DL) direction. A two-stage mechanism can be implemented when effectuating DL OFDMA transmission involving multiple modulation and coding schemes (MCS) in a single transmit burst. A first stage of the two-stage mechanism may use radio frequency (RF) boosting/de-boosting of Resource Units (RUs) such that the average input power to an AP power amplifier (PA) may remain under a saturated PA output power to ensure PA linearity. If RF boosting/de-boosting is not supported, an alternative mechanism for OFDMA grouping (to rigid grouping) can be employed to skip higher MCS.

The present document relates to a method by which a base station transmits and receives data in a wireless communication system, and discloses a method for transmitting and receiving data, the method comprising the steps of: receiving channel quality indicator (CQI) information from user equipment; selecting a first modulation and coding scheme (MCS) level from among one or more MCS levels on the basis of the CQI information; transmitting, to the user equipment, data to which the selected first MCS level is applied, in a full-duplex (FD) transmission mode; receiving, from the user equipment, acknowledge/negative acknowledgement (ACK/NACK) for the transmitted data; and determining whether or not to switch the transmission mode, wherein the switching of the transmission mode is determined on the basis of at least one of a predetermined number of consecutive NACKs, a mode switch threshold, and the one or more MCS levels.

The present disclosure provides a method (100) in a network node. The method (100) includes: transmitting (110), to a terminal device, a first instruction to apply a first rank configuration; receiving (120), from the terminal device, a first report containing a first rank value and a first channel quality indication; and transmitting (130), to the terminal device, a second instruction to apply a second rank configuration in response to a mismatch between a Modulation and Coding Scheme, MCS, adjusted while transmitting data using the first rank value and the first channel quality indication, wherein the second rank configuration indicates that the first rank value is forbidden to be reported.

An information processing device (200, 300) includes a first encoding processing unit (212b), a second encoding processing unit (212d), and a communication unit (21, 41). The first encoding processing unit (212b) performs first error correction encoding processing in which a plurality of bit sequences are output from one or more bit sequences. The second encoding processing unit (212d) performs second error correction encoding processing in which one bit sequence is output from one bit sequence. The communication unit (21, 41) transmits at least one of a first transmission signal or a second transmission signal depending on a predetermined condition, the first transmission signal being obtained by performing the first error correction encoding processing and the second error correction encoding processing on transmission data sequences, and the second transmission signal being obtained by performing the second error correction encoding processing on the transmission data sequences.

A link adaptation method uses a selection criterion for selecting a transmission mode for transmitting PPDU frames over a channel of a telecommunications system. The system includes an access point and a plurality of stations having various different transmission modes associated with different data rates. Access to the channel being of the random type. The selection makes use of a time occupancy metric γ of the channel.

Device-to-device (D2D) transmissions by a wireless device may interfere with base station reception of other signals. To mitigate this interference, the wireless device estimates the path loss between itself and the base station. The path loss and the current D2D transmission power level are used to estimate the amount of interference the base station is experiencing as a result of the D2D transmissions from the wireless device. Based on the estimated interference experienced by the base station, the wireless device increases the robustness of the MCS being used and decreases the transmission power level by a corresponding amount. By decreasing the D2D transmission power level, less interference will be experienced by the base station. By increasing the robustness of the MCS, the impact of the reduced D2D transmission power level is mitigated.

A service packet transmission method and apparatus, the method including receiving, by the source mobile edge computing network element, after a source mobile edge computing network element receives a second uplink service packet, a first uplink service packet sent by a source user plane network element and that is from a target user plane network element, where the second uplink service packet is the last uplink service packet sent by the source mobile edge computing network element to a source application server, sending, by the source mobile edge computing network element, the first uplink service packet to a target mobile edge computing network element, and sending, by the source mobile edge computing network element, first indication information to the target mobile edge computing network element, the first indication information indicating that the sending of the first uplink service packet by the source mobile edge computing network element ends.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive an indication of a non-linearity model associated with one or more downlink communications. The UE may receive the one or more downlink communications based at least in part on the non-linearity model. Numerous other aspects are described.

A scheme for optimizing segment sizes for an adaptive bitrate (ABR) streaming client engaged in a current ABR streaming session. In one implementation, a determination is made whether a wireless UE device executing the ABR streaming client is approaching a radio white spot area. If so, a video buffer of the ABR client is configured to preload a fixed number of segments having an adjusted size depending on the duration of the radio white spot area. The preloaded segments may comprise lower quality video segments, and as the wireless UE device exits the radio white spot area, the segment size and/or bitrates may be restored depending on the signal quality.

A method for transporting data block includes: determining an initial transport block size (TBS) according to received current downlink control information (DCI); acquiring current first channel state information (CSI) and second channel state information (CSI) acquired the last time; adjusting the initial TBS according to the first CSI and the second CSI to obtain an adjusted TBS; and sending, according to the adjusted TBS, uplink data corresponding to the current DCI to a base station.