Patent ID: 11937297
Assignee: QUALCOMM INCORPORATED
Field: Textile and paper machines (Mechanical engineering)
Classification: CPC H  B | IPC B  H

Claim 18:
19. The base station of claim 18,
wherein MIMO configuration information includes one or more of:
a MIMO rank;
a number of transmit antennas;
a number of receive antennas;
a transmit beamforming (TxBF) directional parameter; and
the RxBF directional parameter,

wherein the configuration of the at least one processor to compute the MIMO configuration information includes configuration of the at least one processor to:
select the MIMO rank resulting in a largest throughput from the at least one UE based on the current interference covariance, Rnn;
select the RxBF directional parameter resulting in the largest throughput from the at least one UE based on the selected MIMO rank; and
compute the TxBF directional parameter by selecting left singular vectors of a singular-value decomposition (SVD) of a channel estimate,

wherein performing the eCCA includes:
compute an effective interference at the base station using at least the RxBF directional parameter and MIMO rank of the MIMO configuration information;
compare the effective interference with a default power detection threshold, wherein the effective interference being within the default power detection threshold identifies the success of the eCCA; and
suspend the eCCA in response to the effective interference exceeding the default power detection threshold, and

wherein the RxBF directional parameter is identified by the spatial channel reservation signal via one of:
the RxBF directional parameter and MIMO rank embedded into a payload of the spatial channel reservation signal; or
the spatial channel reservation signal precoded using the RxBF directional parameter and MIMO rank.