H04L1/0015

DOWNLINK/UPLINK (DL/UL) SWITCHING CAPABILITY REPORTING FOR SYSTEMS WITH HIGH SUBCARRIER SPACING (SCS)
20220124863 · 2022-04-21 ·

A method for wireless communication by a user equipment (UE) determines a downlink/uplink (DL/UL) switching capability of the UE, and reports the DL/UL switching capability to a network. The DL/UL switching capability may indicate a quantity of DL/UL switch points, N, supported by the UE, and a time duration to which the quantity of DL/UL switch points is applied. The DL/UL switching capability may indicate a minimum link duration for which the UE should maintain a link direction after a previous DL/UL switch operation and before a next DL/UL switch operation. The DL/UL switching capability may include a DL/UL switching delay indicating a time specified for the UE to complete a DL/UL switching operation. The DL/UL switching capability may be based on a reference subcarrier spacing (SCS).

Method for mitigating branch-amplitude faults in 5G and 6G messages
11770207 · 2023-09-26 · ·

In a message modulated according to orthogonal amplitude-modulated component signals in 5G or 6G, the receiver can attempt to recover a corrupted message by evaluating the modulation quality of each component signal in each message element. The modulation quality of each component signal may be determined according to a distance between the amplitude of the component signal and the closest amplitude level of the modulation scheme, as determined by a prior demodulation reference. The modulation quality may also be determined by the SNR and amplitude stability of the component signal. Upon detecting a corrupted message, the receiver can identify the faulted message elements according to modulation quality, and if the faulted message elements are clustered in a portion of the message (as is common), the receiver can request that just the faulted portion be retransmitted, saving time and bandwidth.

CHANNEL ESTIMATE OR INTERFERENCE REPORTING IN A WIRELESS COMMUNICATIONS NETWORK

Certain aspects of the present disclosure provide techniques for wireless communications by a user equipment (UE), including receiving, from a network entity, an indication to report at least one of a channel quality indicator (CQI) or a pre-coding matrix indicator (PMI) for one or more future communications resources and sending, to the network entity, a channel state feedback (CSF) report indicating at least one of a predicted CQI or a predicted PMI for the one or more future communications resources prior to the one or more future communications resources occurring in time.

System And Method For Dynamically Varying Retry Rates In UAV Communications
20230300636 · 2023-09-21 · ·

Methods and apparatuses for enhancing vehicle range in a unmanned aircraft system is disclosed herein. An implementation of the method includes establishing a wireless communication channel between an unmanned aircraft and an end point and transmitting data from the unmanned aircraft to the end point over the wireless communication channel. This transmission is done in accordance with a transmission configuration, which defines a Forward Error Correction (FEC) value and a retry rate. The method further includes receiving transmission statistics related to transmitting the data and modifying the transmission configuration at least in part in response to the transmission statistics. The method also includes transmitting further data from the unmanned aircraft to the end point over the wireless communication channel in accordance with the modified transmission configuration.

Multi-user MIMO systems and methods

A method and system are provided for scheduling data transmission in a Multiple-Input Multiple-Output (MIMO) system. The MIMO system may comprise at least one MIMO transmitter and at least one MIMO receiver. Feedback from one or more receivers may be used by a transmitter to improve quality, capacity, and scheduling in MIMO communication systems. The method may include generating or receiving information pertaining to a MIMO channel metric and information pertaining to a Channel Quality Indicator (CQI) in respect of a transmitted signal; and sending a next transmission to a receiver using a MIMO mode selected in accordance with the information pertaining to the MIMO channel metric, and an adaptive coding and modulation selected in accordance with the information pertaining to the CQI.

METHOD AND APPARATUS FOR DETERMINATION OF UPLINK/DOWNLINK TRANSPORT BLOCK SIZE AND MODULATION AND CODING SCHEME
20220029733 · 2022-01-27 ·

A non-terrestrial network (NTN) node transmits configuration information including an indication of a maximum transmission block size (TBS) for a physical uplink shared channel (PUSCH) transmission or a physical downlink shared channel (PDSCH). A TBS for the PUSCH or PDSCH is determined based on at least the indicated TBS, and one of a signal indicates one of a maximum modulation and coding scheme (MCS) for the PUSCH or PDSCH transmission or whether the PUSCH or PDSCH transmission uses a default MCS, or the MCS is determined based on at least the indicated maximum MCS, and the PUSCH is transmitted or the PDSCH is received based on the determined TBS and the determined MCS. A maximum TBS, a maximum MCS, or a number of hybrid automatic repeat request (HARD) processes is indicated by a master information block (MIB), a system information block (SIB), or radio resource control (RRC) signaling.

MODULATION AND CODING SCHEMES FOR HIGH BAND WIRELESS COMMUNICATIONS

Methods, systems, and devices for wireless communications are described in which a user equipment (UE) may transmit a random access message (e.g., msgA or msg3) using a modulation and coding scheme (MCS) selected based on the frequency band and subcarrier spacing utilized for the random access procedure. The MCS may depend on the frequency band and a size of the SCS satisfying a threshold. In some cases, a base station may select and indicate the MCS for the UE. Additionally or alternatively, a phase tracking reference signal may be transmitted along with a random access message to correct for phase noise.

Method of variable-bitrate communication with selection of a transmission interface and corresponding device

A method for selecting a mode of transmission for a first telecommunication entity of a communication signal to a second telecommunication entity, each mode determining a physical bitrate. The method includes: determining for a given mode a first metric corrected by a second metric, the first metric measuring at a given distance d a relative degradation by the medium for transmitting the signal resulting from a relative degradation linked to a multipath effect at the link level with respect to a Gaussian channel and from a relative degradation linked to an effect of attenuation of the medium with respect to a model of attenuation in free space, the second metric determining a ratio between a mean bitrate and the physical bitrate for this mode of transmission; comparing for various modes of transmission, values of the first metric corrected to select at least one mode of transmission for distance d.

MULTIMODE INTERCONNECTION INTERFACE CONTROLLER FOR CONVERGED NETWORK

This invention discloses a multimode interconnection interface controller for a converged network, which comprises a SERDES element responsible for serial/parallel conversion, a LANE_TXCLK element responsible for generating a transmit clock, a SERDES initialization element responsible for link training and rate negotiation, and a PCS_EB coding element and an PCS_AF coding element responsible for physical layer coding of messages. The link training and rate negotiation are completed automatically via the shared SERDES initialization element. More universality and flexibility are provided for interconnection chip design by the PCS_EB coding element. The PCS_AF coding element is provided to reduce message penetration delay. The multimode interconnection interface controller is integrated in a single chip. Through flexible configuration, the single chip can meet transmission requirements of dedicated high speed networks and Ethernet networks. The multimode interconnection interface controller also supports interconnection of data center Ethernet and high performance computing high speed network.

REDUCING CONTROL CHANNEL OVERHEAD IN ADVANCED NETWORKS
20220014334 · 2022-01-13 ·

Controlling and reducing overhead in control channels in 5G or other next generation communication systems is provided herein. In connection with a data transmission between a device and a network node device, an overhead management component (OMC) can analyze one or more factors associated with the device, including speed or Doppler metric(s) of the device, type of service associated with the device, historical HARQ statistics for the device, configured threshold value for CSI estimation, device capability regarding redundancy version support, or other factor(s). Based on analysis results, OMC can determine whether to utilize a single redundancy version state or a multiple redundancy versions state. If the single redundancy version state is selected, OMC can generate control information that does not include redundancy version information, the control information being communicated via a control channel. OMC can communicate RRC signal to the device to indicate the determined redundancy version state.