A first node operates in a network. The first node sends a polling message to a second node over a link at a first data rate, receiving an acknowledgement message from the second node. Based at least in part on receiving the acknowledgement message, the first node determines the second node is available to receive an information message. Based at least in part on the determining the second node is available to receive the information message, the first node sends the information message to the second node over the link at a second data rate. The second data rate is based at least on an indication of observed behavior of the link and the first data rate is based at least on the second data rate. For example, the first node may determine the first data rate to be a next slowest available data rate than the second data rate.

A transmitter for transmitting payload data and emergency information using data symbols in a single-carrier or multi-carrier broadcast system includes a modulator configured to modulate one or more transmission symbols with signaling data for use in detecting and recovering the payload data at a receiver and to modulate one or more transmission symbols with the payload data. An emergency information receiver receives emergency information carrying information of an actual emergency. An emergency information embedder embeds emergency information into one or more transmission symbols, wherein the emergency information is embedded within a predetermined time period after its reception by using a resource used for carrying signaling data and/or payload data if no emergency information shall be transmitted. A transmission unit transmits the transmission symbols.

A terrestrial high frequency data communication system and method for implementing a pointing algorithm for endpoint nodes are described. The system includes an aggregation node and one or more endpoint nodes. In one example, a pointing direction for an endpoint node is determined based on a number of packet error rate (PER) measurements associated with a high frequency data communication link between the endpoint node and an aggregation node. Preferably, the endpoint node includes a steerable antenna module that includes one or more antennas. The steerable antenna module is configured to receive an azimuth value and an elevation value determined based on PER measurements associated with the high frequency data communication link, and to steer its one or more antennas based on the azimuth value and the elevation value to point to the aggregation node.

There is provided a method for adaptive bitrate (ABR) adjustments in an IP network before making upshift of ABR level of media streams like video for live Over the Top (OTT) distribution. The invention is based on before upshifting of a current ABR level to a higher ABR level for one or more client devices, probing the network system with a higher bitrate of the data stream provided by e.g. replicating data in the data stream, and monitoring network conditions during probing. Based on the probing it is determined if the available resources in the network are sufficient to sustain an upshift of ABR-level for the client device.

A system and methods of maintaining communication with a medical device for exchange of information, instructions, and programs, in a highly reliable manner. Apparatus and methods for accomplishing this task include: 1) The inclusion of a locating device in the system, in close proximity to an implanted device, but which does not drain the implanted device battery. The locating device may be implanted or external to the body. 2) The use of motion detection and global positioning system devices to locate elements within a communicating system for the medical device; 3) The assessment of received signal quality by elements of the system; 4) The use of a notification system for a device user who is moving out of range of communications; and 5) Documenting the absolute and functional integrity of instructions received by the medical device.

This application discloses an adaptive transmission method for satellite communication. First, a receive end determines a redundancy version index; second, the receive end feeds back a redundancy version index signal to a transmit end; then, the transmit end receives the redundancy version index fed back by the receive end, and performs operations such as demodulation and decoding on the redundancy version index signal, to obtain the redundancy version index; and then, the transmit end obtains a corresponding redundancy version combination based on the obtained redundancy version index; and finally, the transmit end selects a proper diversity mode for transmission based on the obtained redundancy version combination.

In one embodiment the present disclosure provides a controller to control uplink and downlink communications between at least one baseband unit (BBU) and at least one remote radio head (RRH) in a mobile fronthaul (MFH) network, the controller includes pseudorandom seed generating circuitry to initialize a pseudorandom seeding in the at least one BBU and at least one RRH and to cause the at least one BBU and at least one RRH to generate a pair of matching pseudorandom bit sequences (PRBS), the matching PRBS to enable the at least one BBU and at least one RRH to synchronize communications therebetween; wavelength and route assignment circuitry to select a wavelength and to select a route, through the MFH network, to enable the at least one BBU and at least one RRH to communicate using the selected wavelength and route; error code and modulation format selection circuitry to select an error correction code and a modulation format for communications between the at least one BBU and at least one RRH; transmission configuration circuitry to encode one or more parameters of a physical layer in the MFH network into the PRBS; and bit error rate monitoring circuitry to monitor a data stream between the at least one BBU and at least one RRH to determine if a bit error rate has changed for each frame of the data stream.

A user equipment, method and apparatus receive a PDSCH from a base station and determine a modulation order used in the PDSCH based on whether the PDSCH is transmitted in a second slot out of a first slot and the second slot which configure a subframe.

Methods and systems are described for managing SSIDs in a wireless network. An AP providing wireless communications may determine that there is high or low network traffic associated with one of its SSIDs. For example, a high or low number of computing devices may be probing the AP on a particular SSID. The AP may enable or disable the SSID on additional channels, increase or decrease its beacon interval, and/or increase or decrease its beacon physical layer (PHY) data rate in order to provide probing computing devices with greater or less access to the SSID based on the network activity. The AP may scan its channels for network activity and determine the appropriate changes to its SSIDs in order to improve access to heavily used SSIDs or to free up resources.

An electronic apparatus and method for channel congestion control in V2X communication is provided. The electronic apparatus determines an initial MCS level associated the V2X communication channel of the vehicle and estimates a first level of channel congestion in the V2X communication channel at the initial MCS level. Thereafter, the electronic apparatus selects, from a plurality of MCS levels for V2X communication, a first MCS level associated with a first threshold level of a plurality of threshold levels of the channel congestion. The selection of the first MCS level is based on a determination that the first level of the channel congestion is greater than or equal to the first threshold level. The selected first MCS level is greater than the initial MCS level. The electronic apparatus transmits, at the selected first MCS level, message information over the V2X communication channel to a group of electronic devices.