Patent classifications
H04L5/0025
CONTROL CHANNEL RESOURCE GROUPING AND SPATIAL RELATION CONFIGURATION
Certain aspects of the present disclosure provide techniques for control channel resource grouping and spatial relation configuration. Aspects of the present disclosure provide a method of wireless communication by a user equipment (UE). The method generally includes receiving an indication of one or more groupings of one or more control channel resources within a configured bandwidth. Each grouping is associated with a spatial relation. The UE applies a spatial relation for a control channel transmission using one or more control channel resources in a grouping of the one or more groupings. The grouping is associated with the spatial relation.
UPLINK CONTROL SPATIAL RELATION UPDATE WITH UPLINK CONTROL CARRIER SWITCH
Aspects of the disclosure relate to communicating uplink control information. In an aspect, a first device receives from a second device configuration information including an indication to transmit uplink control information via a primary component carrier (PCC) or a given secondary component carrier (SCC) of at least one SCC in a slot. The first device also receives from the second device mapping information indicating an enabled spatial relation information configured for the PCC or the given SCC for transmitting the uplink control information. Thereafter, the first device identifies the enabled spatial relation information from the mapping information and transmits to the second device the uplink control information on the PCC or the given SCC in the slot based on the indication included in the configuration information, the enabled spatial relation information, and an uplink resource mapped to the enabled spatial relation information.
DMRS-based beam management for downlink repetition
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may perform respective measurements of one or more demodulation reference signals (DMRSs). Each of the one or more DMRSs may be associated with a repetition of a downlink transmission. Each of the one or more DMRSs may be transmitted on a narrow beam that is located within a wide beam associated with a transmission configuration indication indicated in a grant for the downlink transmission. The UE may transmit an indication of one or more of the respective measurements. Numerous other aspects are provided.
Wireless communication device, wireless communication terminal and wireless communication method
According to one embodiment, a wireless communication device includes a transmitter configured to transmit a first frame including first information required for uplink multi-user transmission without receiving a transmission request for the first information; and a receiver configured to receive a second frame.
PRECODER INDICATION FOR NON-CODEBOOK-BASED UPLINK TRANSMISSIONS
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a base station, downlink control information that indicates a single precoder indication associated with non-codebook usage. The UE may transmit, to the base station, a single antenna-panel uplink transmission or a multiple antenna-panel uplink transmission based at least in part on a determination of whether the single precoder indication indicates the single antenna-panel uplink transmission or the multiple antenna-panel uplink transmission. Numerous other aspects are provided.
Encoding reference signal received powers
Apparatuses, methods, and systems are disclosed for encoding reference signal received powers. One apparatus includes a processor that: determines a reference signal received power corresponding to each beam of multiple beams to result in a set of determined reference signal received powers; orders the set of determined reference signal received powers in descending order to result in an ordered list of reference signal received powers; and encodes a difference between each two adjacent reference signal received powers of the ordered list of reference signal received powers to result in an encoded ordered list of reference signal received powers.
Aspects of channel estimation for orthogonal time frequency space modulation for wireless communications
Device, methods and systems for aspects of channel estimation for orthogonal time frequency space (OTFS) modulation in wireless systems are described. In an aspect, a method for wireless communication may include receiving, using multiple receive antennas, from a number of user devices, non-orthogonal pilots wherein at least some transmissions of the non-orthogonal pilots from different user devices overlap in at least some time and frequency resources, estimating individual pilots from the number of user devices by computing a pilot separation filter for each antenna, and estimating the wireless channel at time and frequency resources used by the non-orthogonal pilots by filtering the receiving signal at the multiple receiver antennas.
Techniques for uplink resources for beam failure recovery requests for mixed modes
Aspects described may include performing a beam failure detection (BFD) measurement procedure with at least one reference signal (RS) associated with at least one of a DL beam for half-duplex (HD) communication and a DL and UL beam pair for full-duplex (FD) communication; transmitting a beam failure recovery request (BFRQ) and a beam failure reason message for the at least one RS associated with the at least one of the DL beam for the HD communication and the DL and UL beam pair for the FD communication to a network entity in response to performing the BFD measurement procedure; and transmitting a measurement metric associated with the beam failure reason message and the at least one of the DL beam for the HD communication or the DL and UL beam pair for the FD communication to the network entity based on a result of the BFD measurement procedure.
Spatial relation information based on random access messages
Methods, systems, and devices for wireless communication are described. A user equipment (UE) may transmit one or more random access messages during a random access procedure between the UE and a base station. The UE may receive a control signal that includes a spatial relation configuration for transmission, by the UE, of an uplink signal. The spatial relation configuration may indicate that transmission of the uplink signal is via a transmit beam used in transmitting one of the random access messages. The spatial relation configuration may configure a spatial relation information element (IE) to identify the random access message. The UE may receive the spatial relation configuration identifying the random access message, and the UE may transmit the uplink signal using a same transmit beam used for transmission of the random access message.
UPLINK UE POSITIONING
A method for operating a wireless communication network that supports a plurality of reference signals such as sounding reference signals as provided. The method comprises analyzing a channel condition between a UE and TRPs, providing a measurement report to the wireless communication network and determining parameters of an uplink RS based on the measurement report. The method further comprises receiving, with the user equipment, at least one instruction signal comprising information indicating the determined parameters of the uplink RS, and transmitting the uplink RS within the UE so as to allow determining uplink transmission links for a UE multi-TRP communication or a position of the UE in the wireless communication network based on an evaluation of transmittal of the instructed uplink RS.