A method of receiving a downlink control channel in a user equipment may include receiving, using two or more antenna ports, a shortened physical downlink control channel (PDCCH) transmitted using a space-frequency block code (SFBC), by using at least one shortened control channel element (SCCE) for shortened transmission time interval (STTI) transmission; and monitoring the shortened PDCCH. The at least one SCCE may include at least one shortened resource element group (REG) including a number of resource elements (REs), where the number is unequal to an integer multiple of the number of antenna ports allocated to the shortened PDCCH.

Described herein are, among other things, techniques, devices, and systems for streaming pixel data from a host computer to a wireless display device with low latency. In some embodiments, a user mode driver is executed in user mode of the host computer to configure a wireless network interface controller of the host computer to operate in a low latency manner. The display device may use a Forward Error Correction (FEC) algorithm to reconstruct a frame from the data packets it receives from the host computer. Also disclosed are techniques for scrambling the transmission of a series of data packets using different antenna configurations, as well as setting a modulation and coding scheme (MCS) rate based at least in part on the amount of pixel data to be transmitted to the display device. The display device may comprise a head-mounted display (HMD) that renders virtual reality (VR) game imagery.

Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive a set of reference signals from a base station and may determine a first set of channel state parameters. The UE may determine one or more preprocessed decoder parameters based on a downlink channel decoder of the UE and may perform one or more signal processing operations to determine one or more adjustment values for the first set of channel state parameters. The UE may transmit an indication of a the one or more adjustment values to the base station. In some implementations, the UE may transmit an indication of the one or more preprocessed decoder parameters to the base station and the base station may perform the one or more signal processing operations to determine the one or more adjustment values.

The described technology is generally directed towards dynamically changing which quadrature amplitude modulation (QAM) table a user equipment is to use based on channel quality information. A network schedules a user equipment with 256 QAM modulation if the user equipment recommends 256 QAM in the CQI report (and the scheduler decides to use 256 QAM for that particular user equipment). The network indicates to the user equipment that it has to use 256 QAM modulation and coding scheme (MCS) table and not the configured QAM MCS table while determining the scheduling parameters by decoding PDCCH.

A communication system for providing predictive adaptive coding and modulation (ACM) during transmission between terminals is provided. One or more receiving terminals are adapted for detecting changes in a transmission rate and automatically adapting its demodulation to the changes. A transmitting terminal is adapted for transmitting data to the one or more receiving terminals using predictive ACM by selecting channel parameters from a lookup table without receiving channel parameters over a return link from the one or more receiving terminals. The channel parameters may be at least one of a channel symbol rate, a code type, and a frequency.

The disclosure relates to a method 10 in a wireless device 3 for providing feedback information. The wireless device 3 is adapted for wireless communication in a communication system 1 comprising a network node 2. The method 10 comprises: receiving 11, from the network node 2, a downlink transmission, the downlink transmission comprising a transmission parameter used for the downlink transmission; measuring 12 channel quality of the received downlink transmission; determining 13, based on the measured channel quality, a transmission parameter, that the wireless device 3 is able to support; correlating 14 the transmission parameter used for the downlink transmission with the determined transmission parameter, giving a correlated transmission parameter; and encoding 15 the correlated transmission parameter together with Hybrid Automatic-Repeat-Request feedback information. Methods in a base station node, a base station node, computer programs and computer program products are also presented.

The described technology is generally directed towards dynamically changing which quadrature amplitude modulation (QAM) table a user equipment is to use based on channel quality information. A network schedules a user equipment with 256 QAM modulation if the user equipment recommends 256 QAM in the CQI report (and the scheduler decides to use 256 QAM for that particular user equipment). The network indicates to the user equipment that it has to use 256 QAM modulation and coding scheme (MCS) table and not the configured QAM MCS table while determining the scheduling parameters by decoding PDCCH.

Certain aspects of the present disclosure provide techniques for slot aggregation configuration with user equipment (UE) assistance information. A method that may be performed by a UE may include transmitting, to a base station (BS), assistance information indicating a preferred repetition factor. The method generally includes receiving an indication from the BS of a repetition factor. The BS can determine the repetition factor for the UE based, at least in part, on the assistance information and indicate the determined repetition factor to the UE.

Accordingly, the embodiments herein disclose a method for selecting a MCS in a wireless communication system. The method includes receiving, by a UE, a list of default MCS from a base station. Further, the method includes measuring, by the UE, a CQI. Further, the method includes selecting, by the UE, at least one MCS from the list of default MCS based on the measured CQI.

A method for determining transmission rate, an apparatus, a transmission device, and a storage medium. The method includes: determining at least two candidate transmission rates; performing data transmission for a period of time at each of the candidate transmission rates; determining an energy utilization rate of battery power during the data transmission at each of the candidate transmission rates; and selecting a target transmission rate for subsequent data transmission from the candidate transmission rates according to the energy utilization rate.