Methods and apparatus are provided for selecting a code type. A type of code is selected from a set of code types to use as an inner code for a concatenated encoding scheme for encoding information bits of a channel, wherein the selection is based on one or more channel coding parameters including a false alarm detection objective for the channel. A codeword is generated by encoding the information bits using the type of codes selected as the inner code and an outer code. The generated codeword is transmitted.

Disclosed in embodiments of the present application are a method and device for scheduling transmission, which are used to solve the problem in which there are currently no solutions for transmission scheduling that supports various communication scenario changes. In the embodiments of the present application, a network side device sends a transmission instruction to a terminal device; and the terminal device determines a transmission scheduling mode according to the transmission instruction and performs transmission scheduling. Moreover, after determining that an adjustment condition is satisfied, the network side device determines a new transmission scheduling mode and notifies the terminal device, so that the terminal device performs transmission scheduling by means of the new transmission scheduling mode. In the described method, the network side device may adjust the transmission scheduling mode after determining that the current transmission scheduling mode satisfies the adjustment condition, and then notify the terminal device, so that the terminal device adjusts the transmission scheduling mode, which better ensures the transmission performance and reliability of a system, and achieves dynamic switching between multiple transmission modes.

A transmitter transmits payload data using Orthogonal Frequency Division Multiplexed (OFDM) symbols. The first OFDM symbol is a first type having a number of sub-carriers which is less than or equal to the number of sub-carriers of the one or more second OFDM symbols of a second type and a guard interval for the first OFDM symbol is selected in dependence upon the longest possible guard interval of the second OFDM symbol. Accordingly an OFDM communications system can be formed in which data is transmitted using a frame structure in which a guard interval is adapted to allow a mix of different types of OFDM symbols.

The subject matter described herein is directed towards a technology that increases the reliability of transmitting information, and extends the coverage of a vehicle-to-everything (V2X) network by propagating received information in a multiple-stage chain communication in a wireless communication system. A transmitting device transmits a communication message with repetition data indicating number of times the communication message is to be retransmitted in the wireless communication system. A receiving device determines from the repetition data that the communication message is intended to be retransmitted, modifies (e.g., decrements) the repetition data, and retransmits the communication message in association with the modified repetition data.

In one embodiment, a method includes identifying, by a packet analyzer, one or more silence packets within a network and initiating, by the packet analyzer, a replacement of the one or more silence packets with one or more performance silence packets. The one or more performance silence packets are transmitted between a first node of the network and a second node of the network during a silence period. The method further includes receiving, by the packet analyzer, information associated with the one or more performance silence packets; and analyzing, by the packet analyzer, a connection between the first node of the network and the second node of the network using the information associated with the one or more performance silence packets.

In some examples, a wireless device selects a selected rate bucket of a plurality of different rate buckets, where a rate bucket of the plurality of different rate buckets comprises a plurality of coding rates. A higher-level layer in the wireless device sends, to a lower-level layer in the wireless device, an indication of the selected rate bucket. The lower-level layer uses the selected rate bucket in a wireless communication by the wireless device.

Apparatuses, methods, and systems are disclosed for determining uplink grants for multiple modes. One method (600) includes determining (602), over a first time period, a first mode uplink grant corresponding to a first mode. Determining the first mode uplink grant comprises receiving the first mode uplink grant. The method (600) includes determining (604) autonomously, over a second time period, a second mode uplink grant corresponding to a second mode. The second mode is different from the first mode. The method (600) includes using (606) the first mode uplink grant and the second mode uplink grant to transmit data based on an uplink grant availability corresponding to the first mode uplink grant and the second mode uplink grant.

Methods, systems, and devices for wireless communication are described. A user equipment (UE) may separately encode lower priority uplink control information (UCI) and higher priority UCI, and multiplex the encoded lower priority UCI and the encoded higher priority UCI on the same physical uplink channel (e.g., a physical uplink control channel (PUCCH)). The UE may be configured with multiple coding rates, which the UE may select from based on a payload size associated with each of the lower priority UCI and the higher priority UCI. Alternatively, the UE may be configured with a separate set of coding rates for the lower priority UCI and a separate set of coding rates for the higher priority UCI. The UE may multiplex the lower priority UCI and the higher priority UCI by mapping to physical uplink channel resources based on an order (e.g., mapping higher priority UCI followed by mapping lower priority UCI).

Certain aspects of the present disclosure provide techniques for sending a retransmission of codewords of a data packet to a receiver node, that were not previously successfully received by the receiver node, in a manner compatible with a receive capability constraint of the receiver node.

Certain aspects of the present disclosure provide techniques for sending a retransmission of codewords of a data packet to a receiver node, that were not previously successfully received by the receiver node, in a manner compatible with a receive capability constraint of the receiver node.