Ue-side beam selection procedure
AssigneeTelefonaktiebolaget LM Ericsson (publ)
InventorsSven PETERSSON, Fredrik ATHLEY, Andreas NILSSON
Life of this patent
Estimating the term…
Abstract
There is provided a UE-side beam selection procedure. According to the UE-side beam selection procedure, a user equipment, based on an estimated reliability value of received downlink reference signals and the movement of the user equipment, determines how to filter the received downlink reference signals measurements when determining which candidate beam to use for communication with a network node.
Claims19
A method for performing a user equipment (UE) side (UE-side) beam selection procedure, the method being performed by a UE, the UE-side beam selection procedure comprising:
- for each candidate beam k, where k=1, . . . , K, in a candidate set of K beams:
- receiving, in candidate beam k, a downlink reference signal from a network node, wherein the downlink reference signal is composed of orthogonal frequency-division multiplexing (OFDM) symbols;
- associating the downlink reference signal with a reliability value;
- determining, as a function of the reliability value and movement of the user equipment when receiving the downlink reference signal, filter settings of a filter to be applied to the received downlink reference signal;
- filtering the received downlink reference signal according to the determined filter settings;
- and
- performing reference signal received power measurements on the filtered downlink reference signal;
- and
- selecting, for communication with the network node, the candidate beam in the candidate set of K beams for which the reference signal received power measurements are highest.
A user equipment (UE) for performing a UE-side beam selection procedure, the (UE) comprising:
- a receiver;
- and
- processing circuitry, the processing circuitry being configured to cause the user equipment to:
- for each candidate beam k, where k=1, . . . , K, in a candidate set of K beams:
- receive, in candidate beam k, at least one downlink reference signal from a network node, wherein each of the downlink reference signal is composed of orthogonal frequency-division multiplexing, OFDM, symbols;
- associate the downlink reference signal with a reliability value;
- determine, as a function of the reliability value and movement of the user equipment when receiving the downlink reference signal, filter settings of a filter to be applied to the received downlink reference signal;
- filter the received downlink reference signal according to the determined filter settings;
- and
- perform reference signal received power measurements on the filtered downlink reference signal;
- and
- select, for communication with the network node, the candidate beam in the candidate set of K beams for which the reference signal received power measurements are highest.
A computer program for performing a UE-side beam selection procedure, the computer program comprising computer code which, when run on processing circuitry of a user equipment, causes the user equipment to perform a UE-side beam selection procedure comprising:
- for each candidate beam k, where k=1, . . . , K, in a candidate set of K beams:
- receiving, in candidate beam k, a downlink reference signal from a network node, wherein the downlink reference signal is composed of orthogonal frequency-division multiplexing (OFDM) symbols;
- associating the downlink reference signal with a reliability value;
- determining, as a function of the reliability value and movement of the user equipment when receiving the downlink reference signal, filter settings of a filter to be applied to the received downlink reference signal;
- filtering the received downlink reference signal according to the determined filter settings;
- and
- performing reference signal received power measurements on the filtered downlink reference signal;
- and
- selecting, for communication with the network node, the candidate beam in the candidate set of K beams for which the reference signal received power measurements are highest.
(canceled)
Dependencies are inferred from the claim text.