Wireless communication networks may use various techniques, including those that use multiple-access techniques such as multi-user multiple-input multiple-output (MU-MIMO) techniques. In some embodiments, the use of a MU-MIMO setup frame may give a destination STA a chance to select a best antenna weight vector (AWV) based on previous antenna training. In particular, the use of an AWVgroupID may be used to identify a group of one or more STAs that can be the destination STAs of the MU-MIMO setup frame.

A method and apparatus for performing precoding matrix indicator (PMI) feedback are provided. The apparatus may include at least one storage device containing a computer program, at least one processing circuit and related control/computing devices. The at least one processing circuit is configured with at least one storage device and computer program to feed back the selected PMI and to receive related signalings of the PMI feedback method. One of the signalings includes the precoder candidate set configuration which defines the subset of precoders in a codebook for each precoder to report PMI next time. The selected PMI is transmitted by the apparatus to the corresponding communication device in the communication network.

The present disclosure discloses a method, an apparatus, a device, and a system for antenna alignment. The method includes: performing, according to a target preset condition, adjustment processing on a phase and an amplitude of a signal that is transmitted by each antenna unit of a first antenna, and the second antenna is located within a coverage scope of the target beam; and determining that a difference between a horizontal angle of the target beam and a mechanical horizontal angle of a current mechanical location of the first antenna is a horizontal angle, that needs to be adjusted, of the first antenna, adjusting the mechanical horizontal angle and the mechanical pitch angle of the first antenna according to the horizontal angle that needs to be adjusted and the pitch angle that needs to be adjusted.

The invention relates to devices and methods for signalling control information associated with transmission of data over a wireless channel. A second communication device receives (S2) data from a first communication device, wherein the data comprises an indication of recommended precoders and a recommendation of a first transmission rank to possibly use during transmission. The second communication device determines (S4) a second transmission rank to use for transmitting data, and transmits (S6) a confirmation message to the first communication device. The confirmation message comprises a confirmation that transmission of data from the second communication device is using at least parts of each recommended precoder associated with a frequency resource that falls within the transmission of data and an indicator of the second transmission rank to use.

Embodiments of the present disclosure relate to a method, terminal device and apparatus for beam report transmission and a method, network node and apparatus for a beam report receiving. In an embodiment of the present disclosure, the method for beam report transmission may include dropping, in response to a collision between a beam report and another uplink control information, a lower-priority one of the beam report and the other uplink control information based on a predetermined priority rule defining a transmission priority of the beam report and the other uplink control information. With embodiments of the present disclosure, it is possible to provide a simple but efficient solution for addressing the collision.

For proper beam failure detection or beam failure recovery even when a plurality of transmission points are used, an aspect of user equipment of the present disclosure includes: a receiving section configured to receive information regarding a number or proportion of at least one of a beam, a link, and a reference signal used to specify partial beam failure detection with respect to one or more transmission/reception points; and a control section configured to perform partial beam failure detection at one or a plurality of transmission/reception points based on the information.

Embodiments of the present disclosure relate to a method, terminal device and apparatus for beam report transmission and a method, network node and apparatus for a beam report receiving. In an embodiment of the present disclosure, the method for beam report transmission may include dropping, in response to a collision between a beam report and another uplink control information, a lower-priority one of the beam report and the other uplink control information based on a predetermined priority rule defining a transmission priority of the beam report and the other uplink control information. With embodiments of the present disclosure, it is possible to provide a simple but efficient solution for addressing the collision.

The invention relates to devices and methods for signalling control information associated with transmission of data over a wireless channel. A second communication device receives (S2) data from a first communication device, wherein the data comprises an indication of recommended precoders and a recommendation of a first transmission rank to possibly use during transmission. The second communication device determines (S4) a second transmission rank to use for transmitting data, and transmits (S6) a confirmation message to the first communication device. The confirmation message comprises a confirmation that transmission of data from the second communication device is using at least parts of each recommended precoder associated with a frequency resource that falls within the transmission of data and an indicator of the second transmission rank to use.

For proper beam failure detection or beam failure recovery even when a plurality of transmission points are used, an aspect of user equipment of the present disclosure includes: a receiving section configured to receive information regarding a number or proportion of at least one of a beam, a link, and a reference signal used to specify partial beam failure detection with respect to one or more transmission/reception points; and a control section configured to perform partial beam failure detection at one or a plurality of transmission/reception points based on the information.

Embodiments of the present disclosure relate to a method, terminal device and apparatus for beam report transmission and a method, network node and apparatus for a beam report receiving. In an embodiment of the present disclosure, the method for beam report transmission may include dropping, in response to a collision between a beam report and another uplink control information, a lower-priority one of the beam report and the other uplink control information based on a predetermined priority rule defining a transmission priority of the beam report and the other uplink control information. With embodiments of the present disclosure, it is possible to provide a simple but efficient solution for addressing the collision.