Apparatus and method for transmitting or receiving a beam direction configuration

Patent metadata

Field	Value
Publication number	US-12574099-B2
Application number	US-202318475365-A
Country	US
Kind code	B2
Filing date	Sep 27, 2023
Priority date	Apr 1, 2021
Publication date	Mar 10, 2026
Grant date	Mar 10, 2026

Abstract

An apparatus for transmitting and receiving data in a wireless communication system according to an embodiment is provided, configured to receive a first message and/or a second message from a further network entity, and configured to determine one or more transmit spatial filters and/or one or more receive spatial filters and/or one or more beam directions; wherein the transmit spatial filters and/or the receive spatial filters are identical to at least one initial spatial filter or are derived by the apparatus from the at least one initial spatial filter; wherein the beam directions are identical to at least one initial beam direction or are derived by the apparatus from the at least one initial beam direction. Furthermore, the apparatus is configured to apply the transmit spatial filters and/or the receive spatial filters and/or the beam directions on one or more downlink resources and/or on one or more uplink resources.

First claim

The invention claimed is:

1 . An apparatus for transmitting and receiving data in a wireless communication system, wherein the apparatus is a user equipment, wherein the apparatus is configured to receive a message from a further network entity,
wherein the apparatus is configured to determine one or more transmit spatial filters and/or one or more receive spatial filters and/or one or more beam directions; wherein the one or more transmit spatial filters and/or the one or more receive spatial filters are identical to at least one initial spatial filter or are derived by the apparatus from the at least one initial spatial filter; wherein the one or more beam directions are identical to at least one initial beam direction or are derived by the apparatus from the at least one initial beam direction; and wherein the apparatus is configured to apply the one or more transmit spatial filters and/or the one or more beam directions on one or more uplink resources; and/or wherein the apparatus is configured to apply the one or more receive spatial filters and/or the one or more beam directions on one or more downlink resources; wherein the message comprises directional angle information indicating a beam direction for at least one of the one or more beam directions, wherein the message comprises directional angle information indicating in a geographic coordinate system or in a local coordinate system the following information: an azimuth angle and an azimuth angle uncertainty indicating an azimuth angle uncertainty range; and an elevation angle and an elevation angle uncertainty indicating an elevation angle uncertainty range, wherein the apparatus is configured to determine an actual azimuth angle of departure using the azimuth angle and the azimuth angle uncertainty of the directional angle information of the message; and wherein the apparatus is configured to determine an actual zenith angle of departure using the elevation angle and the elevation angle uncertainty of the directional angle information of the message.

2 . The apparatus according to claim 1 ,
wherein the apparatus is configured to reduce its search space for searching the actual azimuth angle of departure using the azimuth angle and the azimuth angle uncertainty of the directional angle information of the message; and wherein the apparatus is configured to reduce its search space for searching the actual zenith angle of departure using the elevation angle and the elevation angle uncertainty of the directional angle information of the message.

3 . The apparatus according to claim 2 ,
wherein the apparatus is configured to reduce its search space for searching the actual azimuth angle of departure to the range:
[φAOA−ΔφAOA/2,φAOA+ΔφAOA/2],

wherein φAOA indicates the azimuth angle of the directional angle information of the message, wherein ΔφAOA indicates the azimuth angle uncertainty of the directional angle information of the message; and wherein the apparatus is configured to reduce its search space for searching the actual zenith angle of departure to the range:
[θAOA−ΔθAOA/2,θAOA−ΔθAOA/2],

wherein θAOA indicates the elevation angle of the directional angle information of the message, wherein ΔθAOA indicates the elevation angle uncertainty of the directional angle information of the message.

4 . The apparatus according to claim 1 ,
wherein the message comprises information indicating in a map projection area in a geographic Coordinate System or in a Local Coordinate System or a relative geodetic location comprising one or more of the following information: X,Y,Z unit values, an X value, a Y value, a Z value, an area uncertainty or confidence, an area uncertainty or confidence type, or one or more of the following location information: one or more degrees of latitude, one or more degrees of longitude, an altitude, a delta latitude, a delta longitude, a delta height, an uncertainty or confidence.

5 . The apparatus according to claim 1 ,
wherein the apparatus is configured to receive a further information message, preceding or following the message, wherein the further information message indicates whether the one or more uplink resources or one or more uplink resource sets and/or the one or more downlink resource or one or more downlink resource sets are originating from and/or targeting to a reference device.

6 . The apparatus according to claim 5 ,
wherein the further information message comprises one or more of the following parameters: one or more identifiers of the one or more uplink resources and/or the one or more uplink resource sets associated with a reference device, one or more identifiers of the one or more downlink resources and/or the one or more downlink resource sets associated with the reference device, an indication on the reference device type, position information of the reference device, directional information of the reference device.

7 . The apparatus according to claim 5 ,
wherein the apparatus is configured to use the further information message to estimate a Line-of-Sight or Non-Line-of-Sight channel state between the apparatus and the reference device.

8 . The apparatus according to claim 1 ,
wherein in response to the message, the apparatus is configured to provide to the further network entity an indication on applying the one or more transmit spatial filters and/or the one or more receive spatial filters and/or the one or more beam directions.

9 . The apparatus according to claim 8 ,
wherein the indication on applying the one or more transmit spatial filters and/or the one or more receive spatial filters and/or the one or more beam directions comprises one or more identifiers of the one or more uplink resources and/or the one or more downlink resources, or a success indication on applying a configuration, or an information on an applied beam direction at the apparatus for transmission and/or reception.

10 . The apparatus according to claim 1 ,
wherein the apparatus is configured to provide to the network an indication on an updated selection of the one or more transmit spatial filters and/or the one or more receive spatial filters or the one or more beam directions selected by the apparatus.

11 . The apparatus according to claim 1 ,
wherein the message comprises validity information on one or more identifiers of the one or more uplink resources and/or on the one or more uplink resource sets, and/or information on one or more identifiers of one or more downlink resources and/or one or more downlink resource sets to indicate the at least one initial spatial filter or the at least one initial beam directions for the reception of one or more uplink resources.

12 . The apparatus according to claim 1 ,
wherein the validity information comprises an indication on a time when the configuration is valid, and/or an indication on one or more time windows during which the configuration is applicable.

13 . A method, executed by an apparatus, for transmitting and receiving data in a wireless communication system, wherein the apparatus is a user equipment, wherein the method comprises:
receiving, by the apparatus, a message from a further network entity, determining, by the apparatus, one or more transmit spatial filters and/or one or more receive spatial filters and/or one or more beam directions; wherein the one or more transmit spatial filters and/or the one or more receive spatial filters are identical to at least one initial spatial filter or are derived by the apparatus from the at least one initial spatial filter; wherein the one or more beam directions are identical to at l

Assignees

• Fraunhofer Ges Forschung

Inventors

• Alawieh Mohammad
• Varatharaajan Sutharshun
• Grossmann Marcus

Classifications

• H04W72/046

  the resource being in the space domain, e.g. beams · CPC title

• G01S5/0284

  Relative positioning · CPC title

• G01S5/0236

  Assistance data, e.g. base station almanac · CPC title

• G01S5/0218

  Multipath in signal reception · CPC title

• G01S5/0036

  of measured values, i.e. measurement on mobile and position calculation on base station · CPC title