H04B7/0621

BEAM MEASUREMENT METHOD AND BEAM MEASUREMENT DEVICE
20230009770 · 2023-01-12 · ·

A beam measurement method is provided. A terminal obtains beam measurement result reporting configuration of a neighbor cell, and determines a reference signal configuration of beam measurement of the neighbor cell. The terminal performs the beam measurement on the reference signal of the neighbor cell based on the reference signal configuration of the beam measurement. The terminal reports a beam measurement result of the neighbor cell.

Utilization of Antenna Beam Information

There is provided a method for utilizing antenna beam information. The method is performed by a network node. The method comprises acquiring antenna beam information indicative of a direction of a wireless device (WD) specific beam of the network node. The method comprises classifying the acquired antenna beam information into a cell specific beam category based on an angular difference between the direction and a direction of main lobe of a cell specific beam of the network node. The method comprises performing at least one of a load balancing action of the wireless device and a radiation beam pattern change related to the cell specific beam category.

DEVICE-TO-DEVICE PERIODIC SIGNAL CONFIGURATION
20230006788 · 2023-01-05 ·

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first user equipment (UE) may transmit a first set of periodic signals associated with a first set of spatial relationships in a first set of periodic signal transmission occasions associated with a first periodicity; and transmit one or more second sets of periodic signals with a second set of spatial relationships in one or more second sets of periodic signal transmission occasions associated with a second periodicity, wherein the one or more second sets of periodic signal transmission occasions occur before a next first set of the periodic signal transmission occasions. Numerous other aspects are provided.

Use of uplink beam tracking results in reference symbol sessions

Methods, systems, and devices for wireless communication are described. A network device, such as a base station, may transmit a request message to a user equipment (UE). The request message may include a request for the UE to transmit a set of sounding reference signals (SRSs). The set of SRSs may include two (or more) beamformed signals. The network device may receive the set of SRSs according to the request message. The network device may identify, based on a co-phasing parameter associated with the two (or more) beamformed signals, an antenna port precoder configuration to use for communicating with the UE.

DIRECTED WIRELESS COMMUNICATION

Disclosed herein are methods and apparatuses configured to direct wireless communication. In some embodiments, a networking apparatus is configured to generate a plurality of sequences of symbols for transmission to plurality of client devices; transmit the plurality of sequences to the plurality of client device via one or more beams focused toward the client devices; and transmit the first sequence of symbols and the second sequence of symbols at least partly simultaneously.

BEAM CHANGING FOR A REPEATER NODE
20230231618 · 2023-07-20 ·

This disclosure provides systems, apparatus, methods, and computer-readable media for beam switching by a repeater node that forwards communications from one of a first node or a second node to the other of the first node or the second node. For example, after a change of position by the second node, the first node may provide the repeater node an instruction to perform a beam change operation to communicate with the second node. In some aspects, performing the beam change operation by the repeater node may improve reliability of wireless communications, such as by focusing signal energy in a particular direction. Further, a beam change delay time interval or a scheduling of the beam change delay time interval may be selected based on scheduling associated with other nodes, which may reduce a number of messages sent to the repeater node (such as by reducing instructions to change beam directions).

COMMUNICATION DEVICE AND COMMUNICATION METHOD
20230016720 · 2023-01-19 ·

According to a communication method of the present disclosure, a responder, after the end of transmission sector sweep (TXSS), receives from an initiator a first feedback frame including a BF training type FIELD indicating whether or not to implement a beam forming training (BFT) of a single user multi-input multi-output (SU-MIMO). If the BF training type FIELD indicates that a BFT of the SU-MIMO is to be implemented, the responder transmits to the initiator a second feedback frame based on the result of the TXSS and including a signal to noise ratio (SNR) and a sector identifier (ID) order. The initiator implements the BFT of the SU-MIMO between the initiator and the responder on the basis of the SNR and the sector ID order.

ANGLE-OF-ARRIVAL DEPENDENT RE-CONFIGURABLE REFLECTIVE DEVICES

A method is proposed for operating a re-configurable reflective device, RRD, the RRD being re-configurable to provide multiple spatial filters, each one of the multiple spatial filters being associated with a respective input spatial direction from which incident signals on a data radio channel are accepted and with a respective output spatial direction into which the incident signals are reflected by the RRD. The method comprises: receiving, by the RRD from a first communication node, CN1, on a positioning radio channel different from the data radio channel, a CN1 reference signal, determining, by the RRD, an estimated CN1 angle of arrival of the CN1 reference signal, and reconfiguring the RRD based on the estimated CN1 angle of arrival.

Frequency-selective single frequency network based on the modified type-II port selection codebook

Frequency-selective single frequency network (SFN) operation is disclosed based on a modified Type-II port selection codebook. Within the channel state information (CSI) feedback procedure, a user equipment (UE) observing the CSI-reference signal (CSI-RS) resource configured by the serving base station with two ports configured over multiple sectors of the serving base station may select a precoder from the Type-II port selection codebook which accommodates additional subband amplitude information. The additional subband amplitude information may include a subband dynamic SFN activation indicator. In such a CSI report selected from the Type-II port selection codebook, the UE may indicate to the serving base station both a wideband SFN activation/deactivation and a subband SFN activation/deactivation in addition to the subband phase information. The serving base station may then use this CSI report to activate/deactivate SFN operations in both wideband and subband over each of the participating sectors.

Methods and apparatus to facilitate layer 1 user equipment (UE) filtering for millimeter wave frequencies

Apparatus, methods, and computer-readable media for facilitating L1 UE-side filtering for mmW frequencies are disclosed herein. An example method for wireless communication at a user equipment includes configuring a filter coefficient for a serving beam. The example method also includes applying the filter coefficient to the serving beam to determine an updated filtered measurement result. The example method also includes reporting the updated filtered measurement result to a base station.