H04L5/1461

Method and system for controlling downlink transmit power
11582070 · 2023-02-14 · ·

Aspects of the subject disclosure may include, for example, obtaining channel cross correlation data relating to multiple user equipment (UEs) being served in a cell, wherein the channel cross correlation data comprises a correlation coefficient associated with a first UE of the multiple UEs and a second UE of the multiple UEs, identifying that the first UE is experiencing decreasing throughput, responsive to the identifying that the first UE is experiencing decreasing throughput, determining whether the correlation coefficient associated with the first UE and the second UE satisfies a correlation threshold, and, based on a first determination that the correlation coefficient does not satisfy the correlation threshold, adjusting a downlink (DL) transmit power allocation for transmissions directed to the first UE. Other embodiments are disclosed.

Method and device for setting resource pool in NR V2X

A method for a first device to perform wireless communication and a device supporting same. The method may include the steps of: receiving, from a base station, a time division duplex uplink-downlink (TDD UL-DL) configuration including information related to a UL resource; receiving, from the base station, information related to the start of sidelink (SL) symbols, information related to the number of the SL symbols, and a bitmap indicating one or more slots included in an SL resource pool; and determining the SL resource pool.

DUPLEX-MODE REMEDIATION FOR SELF INTERFERENCE

Systems and methods in which one or more wireless communication stations implement duplex-mode remediation to facilitate the signal communication when an issue with respect to self-interference is identified are described. Duplex-mode remediation may be implemented for various communication scenarios, such as for random access phase communications, for communications having different priorities, etc. A wireless communication station may implement one or more changes with respect to the full duplex operation of the wireless communication station based upon determining that an issue with respect to self-interference may be, or is being, experienced, such as to provide for a wireless communication station operating in an in-band full duplex mode to increase interference cancellation and/or to fall back to a sub-band full duplex mode or a half duplex mode, to provide for a wireless communication station operating in a sub-band full duplex mode to increase interference cancellation and/or to fall back to a half duplex mode.

CONFIGURED TIME GAP FOR SI BEAM FAILURE MEASUREMENT AND INDICATION
20230038737 · 2023-02-09 ·

A base station may identify a configuration of one or more time gap periods associated with FD beam pair quality measurement. The base station may transmit, to the UE, and the UE may receive, from the base station, an indication of the configuration of the one or more time gap periods associated with FD beam pair quality measurement. The UE may perform, during the one or more time gap periods, one or more measurements of a quality of one or more FD beam pairs. Each of the one or more FD beam pairs may include an uplink beam and a downlink beam. The UE may identify at least one failed FD beam pair in the one or more FD beam pairs based on the one or more measurements of the quality of the one or more FD beam pairs and an SI measurement.

DIGITAL-CENTRIC FULL-DUPLEX ARCHITECTURE
20180006795 · 2018-01-04 · ·

A full-duplex radio device is disclosed. The full-duplex radio device includes an analog transmission (TX) circuit that includes a power amplifier to output an analog TX signal. The full-duplex radio device also includes a feedback receiver circuit coupled to the analog TX circuit. The feedback receiver circuit provides a digital representation of the analog TX signal that is used to digitally cancel at least a transmitter noise component of a self-interference signal associated with a transmission of the analog TX signal in the full-duplex radio device.

METHOD AND DEVICE FOR REMOVING SELF-INTERFERENCE SIGNAL IN ENVIRONMENT USING FDR MODE

A method for removing a self-interference signal by a device supporting an FDR mode can further comprise the steps of: transmitting a signal to a counterpart node in a predetermined time interval; generating, in an RF stage of the device, a residual self-interference signal after removal of an analog self-interference signal with respect to the signal and then storing same; and receiving from the counterpart node a NACK signal with respect to the transmission of the signal; retransmitting the signal to the counterpart node; and, if decoding of the signal which has been received in the predetermined time interval is successful, using only a part of the stored residual self-interference signal when removing a digital self-interference signal on the basis of the retransmission.

Systems and methods for efficiently-transformed digital self-interference cancellation

An efficiently-transformed digital self-interference canceller, preferably including an FD transformer, a TD transformer, a channel estimator, a composer, and a controller. The canceller can optionally include a channel memory, a predictor, and/or an extender. A method for digital self-interference cancelation, preferably including receiving inputs, transforming the inputs, generating outputs based on the transformed inputs, transforming the outputs, and/or generating a cancellation signal based on the outputs.

SYMBOL LEVEL INTERLEAVING IN FULL-DUPLEX SLOTS

In one aspect, a method of wireless communication includes determining, by a user equipment (UE), one or more full-duplex symbols of a slot and one or more half-duplex symbols of the slot; determining, by the UE, to use a first type of interleaving for the one or more full-duplex symbols and a second type of interleaving for the one or more half-duplex symbols; frequency domain mapping, by the UE, virtual resources of the slot to physical resources of the slot based on the first type of interleaving and the second type of interleaving; and communicating, by the UE, based on the physical resources. Other aspects and features are also claimed and described.

INDICATION OF BANDWIDTH PART AND FULL DUPLEX RESOURCES FOR BASE STATION IN FULL-DUPLEX MODE
20230224136 · 2023-07-13 ·

The apparatus may be configured to configure a downlink BWP and an uplink BWP having at least one of a restricted uplink portion, a restricted downlink portion, or a guard band associated with one or more of the downlink BWP or the uplink BWP. The apparatus may also be configured to communicate with one or more UEs in the restricted downlink portion of the downlink BWP and the restricted uplink portion of the uplink BWP. The apparatus may be configured to transmit, to a first UE in a half-duplex mode of operation, an indication of a first set of resources for a full-duplex mode of operation of the base station and a second set of resources for the half-duplex mode of operation of the base station. The apparatus may also be configured to communicate with the first UE in the indicated first set of resources.

SIDELINK INTERFERENCE MONITORING FOR FULL-DUPLEX AND HALF-DUPLEX OPERATION
20230217290 · 2023-07-06 ·

Methods, systems, and devices for wireless communications are described. Generally, the described techniques at a user equipment (UE) provide for efficiently falling back to a half-duplex mode from a full-duplex mode when a level of interference is high. In particular, the UE may measure the level of interference at the UE (e.g., caused at least partially by self-interference between transmissions and receptions at the UE), and the UE may fall back to a half-duplex mode if the level of interference is above a threshold. In one example, the UE may transmit channel state information (CSI) reference signals (CSI-RSs) on resources allocated for interference measurements, and the UE may perform measurements on the CSI-RSs to identify a level of interference. In another example, the UE ay transmit a data packet on resources allocated for interference measurements, and the UE may decode the data packet to identify a level of interference.