Disclosed is a method and system for dynamically adjusting modulation and encoding scheme (MCS) and transport block size (TBS) used for downlink transmissions from a base station (BS) to a user equipment device (UE) based on a frequency of retransmission requests from the UE. The BS may identify the UE as belonging to a first class of UEs designated as being capable of receiving data at a first data rate that is higher than a second data rate designated for UEs of a second class, for the same downlink channel quality reported by the UE. Based on the identification, the BS may select a MCS and TBS for the UE corresponding to the first data rate. Upon receiving more than a threshold number of retransmission requests from the UE, the BS may switch to using the second, lower data rate. The first and second classes could correspond to later and earlier technology generations, for example.

Systems and methods for ACM trajectory include receiving data at a communications receiver; decoding the received data based on a selected MODCOD; monitoring a number of iterations used to decode the data using the selected MODCOD; comparing the number of iterations used to decode the data using the first selected MODCOD to a reference number of iterations; and adjusting a SNR threshold value for the selected MODCOD where the number of iterations used to decode the data using the first selected MODCOD is greater than the reference number of iterations.

A method for configuring communication parameters for a first gateway of a LoRa network, designated by a server of said network to relay a response to a request, containing data, received by the server, the data originating from a terminal of said network, the response being transmitted by the server and intended for the terminal. The method comprises, when it is implemented by the first gateway: acquiring communication parameters; and, configuring the first gateway so as to transmit the response to the terminal using said parameters; said parameters being acquired by a determination procedure determining (52, 53, 54), when a distance between the first gateway and a second gateway is shorter than a threshold, communication parameters that make it possible to ensure reliable transmission from the first gateway to the terminal and to minimize disturbance, by said transmission, of communications from the second gateway.

An encoding modulation method and transmitter are described. The method includes: oversampling and noise-shaping received multi-bit data to obtain N bits of data; using the N bits of data as a lookup table address to obtain a PWM puke modulation signal; multiplexing synthetic orthogonal (IQ) complex data of the PWM pulse modulation signal to be real number signal data; and converting the multiplexed real number signal data to an analog signal for power amplification and output, N being an integer representing a smaller number of bits than the received multi-bit data.

In a next generation broadcast architecture, a broadcast gateway may send segments of a data file to a broadcast transmission system and to a server. The broadcast transmission system wirelessly transmits the segments to a user equipment (UE) device. When the UE device fails to decode a segment, it sends a request for re-transmission of the segment to the server via an IP network. The server re-transmits the requested segment to the UE device via the IP network. Furthermore, the gateway may receive one or more IP data flows (e.g., video streams) having variable bit rate. The gateway may apply dynamically-variable coding to the IP data flows so that the resulting coded IP data flows have an aggregate bit rate that matches a constant physical transport rate of the broadcast transmission system.

Methods and devices for monitoring a radio link control, RLC, communication path for transmitting/receiving data units, DUs are disclosed. The methods/devices comprising or triggering determining a decline of the RLC communication path based on a timer for one or more unacknowledged/outstanding DUs transmitted/received on the RLC communication path.

A system and method for push-to-talk (PTT) over long-term evolution (LTE) includes a method. The method includes receiving, by a push-to-talk (PTT) server, a request from a user equipment (UE) to access the PTT server. The method further includes determining, by the PTT server, quality of service (QoS) parameters for a radio access network (RAN) connecting the UE to the PTT server. The method further includes associating, by the PTT server, the QoS parameters with a bearer between the RAN and the PTT server. The method further includes communicating, by the PTT server, with the UE according to the bearer.

Methods and systems are described for network communication. A network device may proactively assess the conditions of a network and generate or update a noise model. The noise model may be used to predict performance for a plurality of different modulation profiles. The network device may switch to the profile with the best predicted performance.

Use of multiple sensors to determine whether motion of an object is occurring in an area is described. In one aspect, an infrared (IR) sensor can be supplemented with a radar sensor to determine whether the determined motion of an object is not a false positive.

A communication device includes a redundant data generation unit, a signal generation unit, and a transmission unit. The redundant data generation unit performs error correction coding processing on combined data obtained by combining first data and second data to generate redundant data used for error correction. The signal generation unit generates a transmission signal based on the second data and the redundant data. The transmission unit transmits the transmission signal to another communication device.