Patent classifications
H04B7/01
METHODS FOR SCHEDULING UPLINK TRANSMISSIONS FOR NON-TERRESTRIAL NETWORKS
The various embodiments herein disclose methods and systems for uplink scheduling schemes for low-earth orbit (LEO) satellite based Non-Terrestrial Network (NTN). According to an embodiment, a zone-based scheduling (ZBS) scheme is described where the coverage area may be divided into a plurality of zones and independent scheduling-offsets may be allocated for each of the zones. The ZBS scheme improves upon the overall user latency by reducing the K2 and cell offset delay for low-propagation delay users within the NTN cells. At the same time, the impact of differential doppler may also be mitigated with such a zone-based allocation strategy.
METHODS FOR SCHEDULING UPLINK TRANSMISSIONS FOR NON-TERRESTRIAL NETWORKS
The various embodiments herein disclose methods and systems for uplink scheduling schemes for low-earth orbit (LEO) satellite based Non-Terrestrial Network (NTN). According to an embodiment, a zone-based scheduling (ZBS) scheme is described where the coverage area may be divided into a plurality of zones and independent scheduling-offsets may be allocated for each of the zones. The ZBS scheme improves upon the overall user latency by reducing the K2 and cell offset delay for low-propagation delay users within the NTN cells. At the same time, the impact of differential doppler may also be mitigated with such a zone-based allocation strategy.
Quasi co-location reference signals for uplink transmission configuration indicator states
Certain aspects of the present disclosure provide techniques for quasi co-location (QCL) reference signals for uplink transmission configuration indicator (TCI) states. An example method generally includes receiving uplink transmission configuration indicator (TCI) indicating one or more quasi co-location (QCL) types, from a plurality of uplink QCL types, for one or more source reference signals (RSs); and sending an uplink transmission in accordance with the uplink TCI.
Quasi co-location reference signals for uplink transmission configuration indicator states
Certain aspects of the present disclosure provide techniques for quasi co-location (QCL) reference signals for uplink transmission configuration indicator (TCI) states. An example method generally includes receiving uplink transmission configuration indicator (TCI) indicating one or more quasi co-location (QCL) types, from a plurality of uplink QCL types, for one or more source reference signals (RSs); and sending an uplink transmission in accordance with the uplink TCI.
Transmission power compensation by attenuation mapping in 5G and 6G
For improved messaging reliability in 5G and 6G, mobile users and their base stations can adjust their transmission power according to the current location of the mobile user. Each entity can maintain a map of known attenuation values, including “dead zones”, and can adjust their transmission power and/or reception gain to compensate. Instead of constantly exchanging location-update messages, the users can indicate their speed and direction, and the base station (or other users) can extrapolate the location versus time to determine a future location, and thereby determine the attenuation factor at the new position. In addition, the base station can use a map to follow the mobile user device's progress, and can thereby update the attenuation factor in real-time. If the mobile user makes a change, it can inform the base station at that time, or during initial access. Result: improved reliability, lower energy consumption, improved traffic safety.
Transmission power compensation by attenuation mapping in 5G and 6G
For improved messaging reliability in 5G and 6G, mobile users and their base stations can adjust their transmission power according to the current location of the mobile user. Each entity can maintain a map of known attenuation values, including “dead zones”, and can adjust their transmission power and/or reception gain to compensate. Instead of constantly exchanging location-update messages, the users can indicate their speed and direction, and the base station (or other users) can extrapolate the location versus time to determine a future location, and thereby determine the attenuation factor at the new position. In addition, the base station can use a map to follow the mobile user device's progress, and can thereby update the attenuation factor in real-time. If the mobile user makes a change, it can inform the base station at that time, or during initial access. Result: improved reliability, lower energy consumption, improved traffic safety.
VEHICLE-TO-EVERYTHING (V2X) COMMUNICATION TRANSMIT PARAMETER SELECTION USING JOINT COMMUNICATION-RADAR SIDE INFORMATION
A method of wireless communication by a first user equipment (UE) includes receiving a vehicle-to-everything (V2X) message from a second UE. The method also includes periodically transmitting and receiving a radar signal to sense an environment of the first UE. The method includes estimating joint communication and radar side information based on the V2X message and the radar signal. The method further includes predicting a communication state between the first UE and the second UE based on the joint communication and radar side information. The method still further includes updating communication transmit parameters based on the communication state.
VEHICLE-TO-EVERYTHING (V2X) COMMUNICATION TRANSMIT PARAMETER SELECTION USING JOINT COMMUNICATION-RADAR SIDE INFORMATION
A method of wireless communication by a first user equipment (UE) includes receiving a vehicle-to-everything (V2X) message from a second UE. The method also includes periodically transmitting and receiving a radar signal to sense an environment of the first UE. The method includes estimating joint communication and radar side information based on the V2X message and the radar signal. The method further includes predicting a communication state between the first UE and the second UE based on the joint communication and radar side information. The method still further includes updating communication transmit parameters based on the communication state.
DOPPLER SPREAD BASED BEAM MEASUREMENT AND REPORTING FOR HIGH SPEED MOBILITY
A terminal is disclosed including a processor that measures for beam management: a Doppler spread or a coherence time associated with a beam and one or more reporting quantities. The terminal also includes a transceiver that reports the Doppler spread or the coherence time. In other aspects, a method for a terminal and a base station are also disclosed.
DOPPLER SPREAD BASED BEAM MEASUREMENT AND REPORTING FOR HIGH SPEED MOBILITY
A terminal is disclosed including a processor that measures for beam management: a Doppler spread or a coherence time associated with a beam and one or more reporting quantities. The terminal also includes a transceiver that reports the Doppler spread or the coherence time. In other aspects, a method for a terminal and a base station are also disclosed.