Granted Patent B2

US 12,489,501 · App. 17/758,645 · Granted Dec 2, 2025

Inventors: Chenxi Hao (Beijing, CN); Yu Zhang (San Diego, CA); Chao Wei (Beijing, CN); Hao Xu (Beijing, CN); Wanshi Chen (San Diego, CA); Mostafa Khoshnevisan (San Diego, CA); Xiaoxia Zhang (San Diego, CA)

Assignee: QUALCOMM Incorporated

H04B7/0626H04B7/063H04B17/336

Abstract

Claims (44)

1 . A method for wireless communication by a user equipment (UE), the method comprising:

receiving a channel state information (CSI) reporting configuration configuring the UE with one or more CSI reference signal (CSI-RS) resources for channel measurement (CMRs) and one or more resources for interference measurement (IMRs);

determining a rank indicator (RI) pair, wherein determining the RI pair comprises: determining a first RI pair, with a zero-rank in the first RI pair, is associated to a first port group for a first CMR and at least one of: a first CSI-IM resource based on an order of the first CSI-IM resource in the CSI-RS reporting configuration, or a first NZP-IMR set based on an order of the first NZP-IMR set in the CSI-RS reporting configuration;

determining a second RI pair, with a non-zero-rank in the second RI pair, is associated to two port groups of the first CMR, and at least one of: a second CSI-IM resource based on an order of the second CSI-IM resource in the CSI-RS reporting configuration, or a second NZP-IMR set based on an order of the second NZP-IMR set in the CSI-RS reporting configuration;

determining a one-to-one mapping between each IMR of the one or more IMRs and a CMR or a CMR pair of the one or more CMRs; and

performing CSI measurement based on the determining the one-to-one mapping.

2 . The method of claim 1 , wherein the one or more IMRs comprise one or more CSI-RS resources for interference measurement (CSI-IMs).

3 . The method of claim 2 , further comprising:

determining the one or more CSI-IM resources are quasi-colocated (QCLed) with the associated CMR or CMR pair.

4 . The method of claim 2 , wherein the one or more CSI-IMs comprise zero-power resources for interference measurement.

5 . The method of claim 1 , wherein:

the one or more IMRs comprise one or more non-zero power (NZP) CSI-RS resources for interference measurement (NZP-IMRs);

the method further comprises determining a NZP-IMR resource setting configuring more than one active set of NZP-IMRs;

each set of ZNP-IMR includes a plurality of NZP-IMRs; and

the method further comprises determining a one-to-one mapping between a codepoint of an indicator and an active NZP-IMR set by an order of the NZP-IMR set in the CSI-RS reporting configuration.

6 . The method of claim 1 , wherein:

determining the one-to-one mapping comprises:

determining a first one-to-one mapping between a CMR and a first IMR; and

determining a second one-to-one mapping between a CMR pair and a second IMR.

7 . The method of claim 1 , further comprising:

receiving signaling from a network entity configuring an association between a codepoint of an indicator and a CMR or a CMR-pair or a rule.

8 . The method of claim 1 , wherein each CMR or CMR pair is associated with a CSI resource indicator (CRI).

9 . The method of claim 1 , wherein the determining the one-to-one mapping between each IMR of the one or more IMRs and a CMR or CMR pair is based on an order of the IMR in the CSI reporting configuration.

10 . A method for wireless communication by a network entity, the network entity comprising:

configuring a user equipment (UE) with a channel state information (CSI) reporting configuration configuring the UE with a one or more CSI reference signal (CSI-RS) resources for channel measurement (CMRs) and one or more resources for interference measurement (IMRs);

determining a rank indicator (RI) pair, wherein determining the RI pair comprises:

determining a first RI pair, with a zero-rank in the first RI pair, is associated to a first port group for a first CMR and at least one of: a first CSI-IM resource based on an order of the first CSI-IM resource in the CSI-RS reporting configuration, or a first NZP-IMR set based on an order of the first NZP-IMR set in the CSI-RS reporting configuration; and

determining a second RI pair, with a non-zero-rank in the second RI pair, is associated to two port groups of the first CMR, and at least one of: a second CSI-IM resource based on an order of the second CSI-IM resource in the CSI-RS reporting configuration, or a second NZP-IMR set based on an order of the second NZP-IMR set in the CSI-RS reporting configuration

determining a one-to-one mapping between each IMR of the one or more IMRs and a CMR or a CMR pair of the one or more CMRs; and

receiving a CSI report based on an association between a codepoint of an indicator and a CMR or a CMR-pair or a rule.

11 . The method of claim 10 , wherein the one or more IMRs comprise one or more CSI-RS resources for interference measurement (CSI-IMs).

12 . The method of claim 11 , further comprising determining the one or more CSI-IM resources are quasi-colocated (QCLed) with the associated CMR or CMR pair.

13 . The method of claim 11 , wherein the one or more CSI-IMs comprise zero-power resources for interference measurement.

14 . The method of claim 10 , wherein:

the one or more IMRs comprise one or more non-zero power (NZP) CSI-RS resources for interference measurement (NZP-IMRs);

the method further comprises determining a NZP-IMR resource setting configuring more than one active set of NZP-IMRs;

each set of ZNP-IMR includes a plurality of NZP-IMRs; and

the method further comprises determining a one-to-one mapping between the codepoint of the indicator and an active NZP-IMR set by an order of the NZP-IMR set in the CSI-RS reporting configuration.

15 . The method of claim 10 , wherein:

determining the one-to-one mapping comprises:

determining a first one-to-one mapping between a CMR and a first IMR; and

determining a second one-to-one mapping between a CMR pair and a second IMR.

16 . The method of claim 10 , further comprising:

configuring the UE with the association.

Assignments (1)

Continuity (1)

References Cited (17)