Einzeltreffer — DigiBib

Providing port independent Non-Zero-Power (NZP) Channel State Information Reference Signal (CSI-RS) muting is disclosed herein. In one embodiments, the method performed by a network node comprises categorizing a plurality of user equipments (UEs) into a first UE group and a second UE group, wherein each of the first and second UE groups is associated with a respective one or more CSI-RS resources. The method further comprises transmitting CSI-RS on the one or more CSI-RS resources of the first UE group while muting or not transmitting CSI-RS on the one or more CSI-RS resources of the second group.

Titel:	PORT INDEPENDENT NZP CSI-RS MUTING
Link:	View record in USPTO Patent Applications (Volltext)
Veröffentlichung:	2023
Medientyp:	Patent
Sonstiges:	Nachgewiesen in: USPTO Patent Applications Sprachen: English Document Number: 20230179379 Publication Date: June 8, 2023 Appl. No: 17/923855 Application Filed: May 06, 2021 Claim: 1. A method performed by a network node for providing port independent Non-Zero-Power (NZP) Channel State Information Reference Signal (CSI-RS) muting, the method comprising: categorizing a plurality of user equipments (UEs) into a first UE group and a second UE group, wherein each of the first and second UE groups is associated with a respective one or more CSI-RS resources; and transmitting CSI-RS on the one or more CSI-RS resources of the first UE group while muting or not transmitting CSI-RS on the one or more CSI-RS resources of the second group. Claim: 2. The method of claim 1, wherein: the first UE group comprises at least one UE; and the second UE group is empty. Claim: 3. The method of claim 1, wherein categorizing the plurality of UEs into the first UE group and the second UE group comprises defining the first UE group and the second UE group according to a pre-defined criterion. Claim: 4. The method of claim 3, wherein the pre-defined criterion is based on one or more of UE capability for CSI-RS measurement and UE capability for CSI calculation. Claim: 5. The method of claim 1, further comprising recategorizing the plurality of UEs responsive to receiving UE capability information. Claim: 6. The method of claim 1, wherein the one or more CSI-RS resources comprise one or more NZP CSI-RS resources that are configured and beamformed together with a synchronization signal (SS) block (SSB) on an SSB beam within a cell. Claim: 7. The method of claim 6, wherein muting or not transmitting CSI-RS on the one or more CSI-RS resources of the second group comprises muting or not transmitting an NZP CSI-RS resource set responsive to no UEs that correspond to the SSB beam being configured to perform CSI reporting based on the NZP CSI-RS resource set. Claim: 8. The method of claim 6, wherein muting or not transmitting CSI-RS on the one or more CSI-RS resources of the second group comprises muting or not transmitting an NZP CSI-RS resource responsive to no UEs that correspond to the SSB beam being configured to perform CSI reporting based on the NZP CSI-RS resource. Claim: 9. The method of claim 1, wherein: the one or more CSI-RS resources correspond to differently beamformed CSI-RS; and categorizing the plurality of UEs into the first UE group and the second UE group is based on a measured Angle of Arrival (AoA) from uplink (UL) transmissions. Claim: 10-11. (canceled) Claim: 12. A network node, comprising: transceiver circuitry; processing circuitry, coupled to the transceiver circuitry, configured to cause the network node to: categorize a plurality of user equipments (UEs) into a first UE group and a second UE group, wherein each of the first and second UE groups is associated with a respective one or more CSI-RS resources; and transmit CSI-RS on the one or more CSI-RS resources of the first UE group while muting or not transmitting CSI-RS on the one or more CSI-RS resources of the second group. Claim: 13. (canceled) Claim: 14. A computer-readable storage medium, having instructions stored thereon, that when executed by processing circuitry of a network node, cause the network node to perform operations comprising: categorizing a plurality of user equipments (UEs) into a first UE group and a second UE group, wherein each of the first and second UE groups is associated with a respective one or more CSI-RS resources; and transmitting CSI-RS on the one or more CSI-RS resources of the first UE group while muting or not transmitting CSI-RS on the one or more CSI-RS resources of the second group. Claim: 15. (canceled) Claim: 16. The network node of claim 12, wherein: the first UE group comprises at least one UE; and the second UE group is empty. Claim: 17. The network node of claim 12, wherein categorizing the plurality of UEs into the first UE group and the second UE group comprises defining the first UE group and the second UE group according to a pre-defined criterion. Claim: 18. The network node of claim 17, wherein the pre-defined criterion is based on one or more of UE capability for CSI-RS measurement and UE capability for CSI calculation. Claim: 19. The network node of claim 12, wherein the processing circuitry is further configured to cause the network node to recategorize the plurality of UEs responsive to receiving UE capability information. Claim: 20. The network node of claim 12, wherein the one or more CSI-RS resources comprise one or more NZP CSI-RS resources that are configured and beamformed together with a synchronization signal (SS) block (SSB) on an SSB beam within a cell. Claim: 21. The network node of claim 20, wherein muting or not transmitting CSI-RS on the one or more CSI-RS resources of the second group comprises muting or not transmitting an NZP CSI-RS resource set or NZP CSI-RS resource responsive to no UEs that correspond to the SSB beam being configured to perform CSI reporting based on the NZP CSI-RS resource set or NZP CSI-RS resource, respectively. Claim: 22. The network node of claim 12, wherein: the one or more CSI-RS resources correspond to differently beamformed CSI-RS; and categorizing the plurality of UEs into the first UE group and the second UE group is based on a measured Angle of Arrival (AoA) from uplink (UL) transmissions. Claim: 23. A computer-readable storage medium, having instructions stored thereon, that when executed by processing circuitry of a network node, cause the network node to perform operations comprising: categorizing a plurality of user equipments (UEs) into a first UE group and a second UE group, wherein each of the first and second UE groups is associated with a respective one or more CSI-RS resources; and transmitting CSI-RS on the one or more CSI-RS resources of the first UE group while muting or not transmitting CSI-RS on the one or more CSI-RS resources of the second group. Claim: 24. The computer-readable storage medium of claim 23, wherein: the first UE group comprises at least one UE; and the second UE group is empty. Current International Class: 04

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PORT INDEPENDENT NZP CSI-RS MUTING