Certain aspects of the present disclosure provide techniques for skipping or using actual repetitions. A method that may be performed by a user equipment (UE) includes receiving, from a base station, a configuration indicating resources for a first repetition and a second repetition in a physical uplink control channel (PUCCH). In certain aspects, the method may also include transmitting the first repetition, wherein the first repetition includes a larger symbol length than the second repetition, the resources for the first repetition multiplex a plurality of transmissions from first UEs including the UE, the resources for the second repetition multiplex a plurality of transmissions from second UEs, and a quantity of the first UEs is larger than a quantity of the second UEs.

During device-to-device communication between two devices, a communication transmitted from a first UE to a second UE may not be reliably received by the second UE if the first UE is traveling at high speed. Therefore, a travel speed of a transmitting UE may be considered in determining a transmission configuration. According to an aspect, the UE may determine a travel speed of the UE. The UE may determine, based on the travel speed of the UE, a transmission configuration of the UE for device-to-device communication. The UE may transmit the device-to-device communication based on the transmission configuration.

The disclosed subject matter relates to facilitating uplink communication waveform selection in wireless communication systems, and more particularly Fifth Generation (5G) wireless communication systems. In one or more embodiments, a system is provided comprising a processor and a memory that stores executable instructions that, when executed by the processor, facilitate performance of operations. These operations can comprise facilitating establishing a wireless communication link between a first device and a second network device of a wireless communication network, and determining a waveform filtering protocol for application by the first device in association with performance of uplink data transmissions from the first device to the second network device.

Aspects are provided which allow a UE to manage a number of antennas in adaptive receive diversity (ARD) based on packet error rate (PER). The UE measures a downlink PER and determines a number of antennas for receiving a downlink transmission based on the measured, downlink PER. The UE measures downlink PER during switching from a fallback state to a steady state in an ARD state machine, and the UE changes a size of a fallback window in the ARD state machine based on the measured, downlink PER. The UE also disables switching from the steady state to the fallback state based on the measured downlink PER. As a result, a balance between UE reception performance and power savings is maximized and improved downlink data throughput is achieved.

Embodiments described herein involve facilitating playback in a media playback system that includes a first media device and a second media device. An example implementation involves comparing one or more first network performance metrics corresponding to a network interface of the first media device to one or more second network performance metrics corresponding to a network interface of the second media device, wherein the comparison indicates that the first media device has a better network connection than the second media device. Based on the comparison, the first media device is configured to forward data indicating audio content from a network source to the second media device to facilitate playback of the audio content by the second media device. The second media device plays back particular audio content via one or more speakers by receiving data indicating the particular audio content from the first media device.

A data transmitting method, includes: generating, by a first device, data messages based on a to-be-sent data stream; transmitting, by the first device, the data messages to a second device based on a packet transmission rate; recording, by the first device, the number of transmitted data messages; when the number of the transmitted data messages reaches a preset number for one batch, transmitting, by the first device, a verification message to the second device; receiving, by the first device, a verification acknowledgement returned by the second device, and determining, by the second device, a packet loss rate of the batch of data messages; updating, by the first device, the packet transmission rate based on packet loss rates of multiple batches of data messages.

Systems and methods for operating a radio system include configuring a first antenna of a plurality of antennas in a wireless device to operate in a configured mode of a plurality of modes, wherein the plurality of modes include a first mode of operating as a quarter wave for operation in a 2.4 GHz band, a second mode of operating as a half wave for operation in a 5 GHz band, and a third mode of operating simultaneous as a half wave and a quarter wave for operation in both the 2.4 GHz band and the 5 GHz band; and operating a first radio of a plurality of radios connected to the first antenna in the configured mode of the first antenna.

Various embodiments disclosed herein provide for facilitating scheduling of uplink data using demodulation reference signal and scheduled resources. According to an embodiment, a system can comprise configuring a network device with a periodic rate of specified sounding reference signals with a periodicity using radio resource control signaling. The system can further facilitate estimating channel state information associated with a channel via which the network device communicates. The system can further facilitate transmitting an uplink grant with uplink transmission parameters to set up a physical uplink shared channel, wherein the uplink transmission parameters are determined based on the channel state information. The system can further facilitate estimating scheduling parameters based on a first estimation information associated with the physical uplink shared channel.

Proposed is a method for transmitting a physical random access channel (PRACH) preamble in a wireless communication system. Specifically, a method performed by user equipment (UE) comprises the steps of: receiving, from a base station, setting information including a first power ramping step for a two-step random access channel (RACH) and a second power ramping step for a four-step RACH; transmitting, to the base station, information including a first preamble and a physical uplink shared channel (PUSCH) for a two-step RACH on the basis of the first power ramping step; and transmitting, to the base station, a second preamble for a four-step RACH by using the second power ramping step, on the basis of the number of retransmissions of the information exceeding a maximum number of retransmissions associated with a preset two-step RACH.

The technologies described herein are generally directed to changing error mitigation protocols used for a connection based on the quality of a network connection in a fifth generation (5G) network or other next generation networks. For example, a method described herein can include determining, by network equipment comprising a processor, that a quality of a connection between a user equipment and a network access point is below a connection quality threshold, with the connection employing a communications protocol using a first error mitigation process, and where the network access point enables respective access to services enabled via a communication network. The method can further include, based on the quality and the first error mitigation process, enabling, by the network equipment, a second error mitigation process of the communications protocol of the connection, the second error mitigation process being different than the first error mitigation process.