Qualcomm has filed a patent for methods, systems, and devices for wireless communications. The patent describes a method for a user equipment (UE) to obtain channel state information (CSI) resources based on a CSI report configuration. The UE performs an operation to aggregate or separate resources from a set of resources, taking into account the number of antenna ports associated with each resource and a codebook configuration. The UE then measures the CSI for reference signals received on the CSI resources and transmits a CSI report based on the measured CSI. GlobalData’s report on Qualcomm gives a 360-degree view of the company including its patenting strategy. Buy the report here.
According to GlobalData’s company profile on Qualcomm, IoT-5G convergence was a key innovation area identified from patents. Qualcomm's grant share as of September 2023 was 44%. Grant share is based on the ratio of number of grants to total number of patents.
The patent filed is for a method of wireless communication
A recently filed patent (Publication Number: US20230318669A1) describes a method for wireless communication at a user equipment (UE). The method involves receiving a control message from a network entity that indicates a channel state information (CSI) report configuration. This configuration includes a set of resources and one or more codebook configurations. The UE then performs an operation to obtain one or more CSI resources from the set of resources. This operation takes into account the number of antenna ports associated with each resource and the number of antenna ports associated with the codebook configuration. The purpose of obtaining the CSI resources is to measure the CSI for a set of reference signals received on these resources. Finally, the UE transmits a CSI report based on the measured CSI for the reference signals.
The method also includes the option to aggregate two or more resources from the set of resources according to an aggregation rule. This aggregation forms a CSI resource that corresponds to the number of antenna ports associated with the codebook configuration. The aggregation can be based on indices of the resources, code-division multiplexing group indices, or port indices. Alternatively, the method allows for the separation of at least one resource into two or more resources according to a separation rule. Each of these separated resources forms a CSI resource corresponding to the number of antenna ports associated with the codebook configuration. The separation can be based on indices of the resources, code-division multiplexing group indices, or port indices.
The method also includes the ability to determine whether to perform aggregation or separation based on the comparison of the number of antenna ports associated with the codebook configuration and the number of antenna ports associated with each resource. Additionally, the method allows for the ordering of a subset of resources based on an aggregation order. This ordering is performed before obtaining the CSI resources from the set of resources. The aggregation order can be ascending or descending based on resource identifiers or a resource list.
The patent also describes an apparatus for wireless communication that includes a processor, memory, and instructions stored in the memory. These instructions enable the apparatus to perform the method described above. The patent further includes a non-transitory computer-readable medium storing code that can be executed by a processor to perform the method.
In summary, this patent presents a method and apparatus for wireless communication that involves obtaining CSI resources from a set of resources based on antenna port configurations. The method allows for aggregation or separation of resources and includes options for ordering the resources. The disclosed invention aims to improve the accuracy and efficiency of CSI measurements and reporting in wireless communication systems.