Beam management for non-terrestrial network communication
AssigneeQUALCOMM Incorporated
InventorsShuanshuan Wu, Kapil Gulati
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Abstract
Aspects provide mechanisms for predicting a change in a beam direction of a transmit and/or receive beam used for communication between a user equipment (UE) and a non-terrestrial network (NTN) entity and to adjust the beam direction of the beam on the UE in accordance with the predicted beam direction change. In some examples, the UE may predict the beam direction change based on one or more mobility parameters indicating a predicted change in the relative position of the UE with respect to the NTN entity. In other examples, a network entity, such as the NTN entity, a core network entity or data network entity, may predict the beam change direction based on the one or more mobility parameters.
Claims30
An apparatus for wireless communication at a user equipment (UE), the apparatus comprising:
- one or more memories;
- and
- one or more processors coupled to the one or more memories, wherein the one or more processors are configured to cause the UE to:
- communicate with a non-terrestrial network (NTN) entity based on a first beam at the UE, the first beam comprising a first beam direction;
- receive a configuration of one or more uplink reference signals for an uplink beam measurement;
- transmit the one or more uplink reference signals based on the configuration;
- receive an indication of a second beam direction from a network entity associated with the NTN entity in accordance with the uplink beam measurement;
- and
- switch from the first beam comprising the first beam direction to a second beam comprising the second beam direction different than the first beam direction in accordance with a predicted beam direction change based on a predicted change in a relative position of the UE with respect to the NTN entity.
An apparatus for wireless communication at a network entity, the apparatus comprising:
- one or more memories;
- and
- one or more processors coupled to the one or more memories, wherein the one or more processors are configured to cause the network entity to:
- identify a first beam at a user equipment (UE) for communication with a non-terrestrial network (NTN) entity associated with the network entity, wherein the first beam comprises a first beam direction;
- predict a predicted beam direction change in accordance with one or more mobility parameters that indicate a predicted change in a relative position of the UE with respect to the NTN entity;
- enable a configuration of one or more uplink reference signals for an uplink beam measurement to be provided to the UE;
- receive beam measurement information associated with the one or more uplink reference signals sent in accordance with the configuration;
- and
- provide an indication of a second beam different than the first beam for the UE to communicate with the NTN entity in accordance with the uplink beam measurement, wherein the second beam comprises a second beam direction in accordance with the predicted beam direction change.
A method operable at a user equipment (UE), the method comprising:
- communicating with a non-terrestrial network (NTN) entity using a first beam at the UE, the first beam comprising a first beam direction;
- receiving a configuration of one or more uplink reference signals for an uplink beam measurement;
- transmitting the one or more uplink reference signals based on the configuration;
- receiving an indication of a second beam direction from a network entity associated with the NTN entity in accordance with the uplink beam measurement;
- and
- switching from the first beam comprising the first beam direction to a second beam comprising the second beam direction different than the first beam direction in accordance with a predicted beam direction change based on a predicted change in a relative position of the UE with respect to the NTN entity.
A method operable at a network entity, the method comprising:
- identifying a first beam at a user equipment (UE) for communication with a non-terrestrial network (NTN) entity associated with the network entity, the first beam comprising a first beam direction;
- predicting a predicted beam direction change in accordance with one or more mobility parameters indicating a predicted change in a relative position of the UE with respect to the NTN entity;
- enabling a configuration of one or more uplink reference signals for an uplink beam measurement to be provided to the UE;
- receiving beam measurement information associated with the one or more uplink reference signals sent in accordance with the configuration;
- and
- providing an indication of a second beam different than the first beam for the UE to communicate with the NTN entity in accordance with the uplink beam measurement, wherein the second beam comprises a second beam direction in accordance with the predicted beam direction change.
Dependencies are inferred from the claim text.