Cell free and multi-trp wireless networks
AssigneeOswego Technologies LLC
InventorsRaziq Yaqub, Brian Gordaychik
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Abstract
Provided herein is a method performed by a UE configured to operate in a m-TRP or cell free network. The method comprises receiving a first beam of a first set of wide SSB beams transmitted by a first gNB and receiving a second beam of a second set of narrow SSB beams transmitted by a second gNB which is different from the first gNB. The UE may predict, from the first beam and/or the second beam, a beam which is not transmitted by either one of the first gNB or the second gNB. The UE may then perform random access by transmitting a random access preamble based on the predicted beam.
Claims9
A method performed by a user equipment (UE) configured to operate in a multi-transmission reception point (TRP) network and/or a cell free network, the method comprising:
- receiving a first beam of a first set of wide synchronization signal block (SSB) beams transmitted by a first TRP;
- receiving a second beam of a second set of narrow SSB beams transmitted by a second TRP, wherein the second TRP is different from the first TRP;
- predicting, from the first beam and/or the second beam, a beam which is not transmitted by either one of the first TRP or the second TRP;
- transmitting a random access preamble based on the predicted beam;
- receiving, post synchronization, information indicating that Discrete Fourier Transform (DFT) spreading Orthogonal Frequency-Division Multiplexing (DFT-s-OFDM) is to be used for uplink communication with one of the first TRP or the second TRP;
- receiving control information that triggers an uplink transmission;
- determining a rank for the uplink transmission, wherein the rank corresponds to a plurality of spatial streams;
- and
- transmitting data, to the one of the first TRP or the second TRP, using DFT-s-ODFM in accordance with the determined rank.
A method performed by a user equipment (UE) configured to operate in a multi-transmission reception point (TRP) network or cell free network, the method comprising:
- receiving a first beam of a first set of wide synchronization signal block (SSB) beams transmitted by a first TRP;
- receiving a second beam of a second set of narrow SSB beams transmitted by a second TRP, wherein the second TRP is different from the first TRP;
- predicting, from the first beam and/or the second beam, a beam which is not transmitted by either one of the first TRP or the second TRP;
- transmitting a random access preamble based on the predicted beam.
A UE configured to operate in a multi-transmission reception point (TRP) network and/or a cell free network, the UE comprising:
- a receiver configured to receive information indicating that Discrete Fourier Transform (DFT) spreading Orthogonal Frequency-Division Multiplexing (DFT-s-OFDM) is to be used for uplink communication with one of a first TRP or a second TRP;
- the receiver further configured to receive control information that triggers an uplink transmission;
- circuitry configured to determine a rank for the uplink transmission, wherein the rank corresponds to a plurality of spatial streams;
- and
- a transmitter configured to transmit data, to the one of the first TRP or the second TRP, using DFT-s-ODFM in accordance with the determined rank.
Dependencies are inferred from the claim text.