# US 12,224,812 B2 · Method for channel and interference measurement and device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,224,812 B2 - Document ID: US12224812B2 - Status: Granted - Kind: B2 - Application number: 17/372,137 - Filed: 2021-07-09 - Published: 2021-10-28 - Granted: 2025-02-11 - Earliest claimed: 2019-01-11 - Assignees: Vivo Mobile Communication Co., Ltd. - Applicants: Vivo Mobile Communication Co., Ltd. - Inventors: Yu Yang; Peng Sun - Web page: https://patentgrep.com/patent/US12224812B2 ## CPC - H04B 17/345: Interference values ({signal-to-interference ratio [SIR] or carrier-to-interference ratio [CIR]} H04B17/336) - H04L 5/0023: {Time-frequency-space} - H04B 7/063: {Parameters other than those covered in groups H04B7/0623 - H04B7/0634, e.g. channel matrix rank or transmit mode selection} - H04L 5/0048: {Allocation of pilot signals, i.e. of signals known to the receiver (allocation of control signalling H04L5/0053; use of control signalling H04L5/0091)} - H04L 5/006: {Quality of the received signal, e.g. BER, SNR, water filling} - H04L 5/0073: {Allocation arrangements that take into account other cell interferences} - H04L 5/0091: {Signalling for the administration of the divided path, e.g. signalling of configuration information} - H04B 7/0452: Multi-user MIMO systems - H04B: TRANSMISSION - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) ## Abstract This disclosure provides a method for channel and interference measurement and a device. The method includes: receiving a first group of reference signal resources; and measuring a channel and an interference that are corresponding to at least one first reference signal resource in the first group of reference signal resources, where the channel and the interference that are corresponding to the first reference signal resource are measured based on quasi co-location QCL information of the first reference signal resource. ## Claims ### Claim 1 A method for channel and interference measurement, applied to a terminal device and comprising: receiving a first group of reference signal resources, wherein the first group of reference signal resources is used to measure a channel corresponding to a first reference signal resource in the first group of reference signal resources and a first interference corresponding to the first reference signal resource, the first interference represents an inter-beam interference; receiving a second group of reference signal resources having an association relationship with the first group of reference signal resources, wherein the second group of reference signal resources is used to measure a second interference corresponding to the first reference signal resource, the second interference represents a neighboring-cell interference and measuring, at least one reference signal resource in the second group of reference signal resources partially or completely overlaps with at least one reference signal resources in the first group of reference signal resources; measuring, based on quasi co-location (QCL) information of the first reference signal resource by using the first group of reference signal resources, the channel corresponding to the first reference signal resource and the first interference corresponding to the first reference signal resources; and measuring, based on the QCL information of the first reference signal resource by using the second group of reference signal resources, the second interference corresponding to the first reference signal resource. ### Claim 2 (depends on 1) The method according to claim 1, wherein the first reference signal resource corresponds to a target signal quality parameter. ### Claim 3 (depends on 1) The method according to claim 1, wherein the measuring the channel corresponding to the first reference signal resource comprises: determining, based on the QCL information of the first reference signal resource, a reception parameter; receiving the first reference signal resource based on the reception parameter; and determining, based on a received power of the first reference signal resource, the channel corresponding to the first reference signal resource. ### Claim 4 (depends on 3) The method according to claim 3, wherein the measuring the first interference corresponding to the first reference signal resource comprises: receiving, based on the determined reception parameter, a second reference signal resource of the first group of reference signal resource; and determining, based on a received power of the second reference signal resource, the first interference corresponding to the first reference signal resource. ### Claim 5 (depends on 1) The method according to claim 1, further comprising: based on a channel and an interference that are obtained through measurement by using a target reference signal resource, determining whether to apply a measurement restriction to the target reference signal resource, wherein the target reference signal resource is any one of the first group of reference signal resources or any one of the second group of reference signal resources. ### Claim 6 (depends on 1) The method according to claim 1, further comprising: based on the channel and the interference that are obtained through measurement by using a target reference signal resource, determining whether to apply a measurement restriction to the target reference signal resource, wherein the target reference signal resource is any one of the first group of reference signal resources. ### Claim 7 (depends on 1) The method according to claim 1, wherein a second reference signal resource of the first group of reference signal resources completely overlaps with a third reference signal resource of the second group of reference signal resources, and the third reference signal resource is associated with the first reference signal resources; and wherein the measuring the first interference corresponding to the first reference signal resource and the measuring the second interference corresponding to the first reference signal resources comprises: determining, based on the QCL information of the first reference signal resource, a reception parameter; performing one of: receiving, based on the reception parameter, the third reference signal resource to determine a first received power; or receiving, based on the reception parameter, the second reference signal resource to determine a first received power; and determining, based on the first received power, the first interference and the second inference. ### Claim 8 (depends on 1) The method according to claim 1, further comprising: determining the overlapping reference signal resource as a reference signal resource for measuring the channel corresponding to the first reference signal resource, in a case that a currently measured beam is a transmit beam corresponding to the overlapping reference signal resource; and determining the overlapping reference signal resource as a reference signal resource for measuring the second interference corresponding to the first reference signal resource, in a case that the currently measured beam is not the transmit beam corresponding to the overlapping reference signal resource. ### Claim 9 (depends on 3) The method according to claim 3, wherein the measuring the second interference corresponding to the first reference signal resource comprises: receiving, based on the determined reception parameter, a third reference signal resource of the second group of reference signal resources, wherein the third reference signal resource is associated with the first reference signal resource; and determining, based on a received power of the third reference signal resource, the second interference corresponding to the first reference signal resource. ### Claim 10 (depends on 4) The method according to claim 4, wherein the second reference signal resource is a reference signal resource other than the first reference signal resource in the first group of reference signal resources, and a transmit beam corresponding to the second reference signal resource is different from a transmit beam corresponding to the first reference signal resource. ### Claim 11 A terminal device, comprising a memory, a processor, and a wireless communications program stored in the memory and running on the processor, wherein when the wireless communications program is executed by the processor, the following steps are implemented: receive a first group of reference signal resources, wherein the first group of reference signal resources is used to measure a channel corresponding to a first reference signal resource in the first group of reference signal resources and a first interference corresponding to the first reference signal resource, the first interference represents an inter-beam interference; receive a second group of reference signal resources having an association relationship with the first group of reference signal resources, wherein the second group of reference signal resources is used to measure a second interference corresponding to the first reference signal resource, the second interference represents a neighboring-cell interference and measuring, at least one reference signal resource in the second group of reference signal resources partially or completely overlaps with at least one reference signal resources in the first group of reference signal resources; measure, based on quasi co-location (QCL) information of the first reference signal resource by using the first group of reference signal resources, the channel corresponding to the first reference signal resource and the first interference corresponding to the first reference signal resources; and measure, based on the QCL information of the first reference signal resource by using the second group of reference signal resources, the second interference corresponding to the first reference signal resource. ### Claim 12 (depends on 11) The terminal device according to claim 11, wherein the measuring the channel corresponding to the first reference signal resource comprises: determining, based on the QCL information of the first reference signal resource, a reception parameter; receiving, based on the reception parameter, the first reference signal resource; and determining, based on a received power of the third reference signal resource associated with the first reference signal resource, the second interference corresponding to the first reference signal resource. ### Claim 13 (depends on 12) The terminal device according to claim 12, wherein the measuring the first interference corresponding to the first reference signal resource comprises: receiving, based on the determined reception parameter, a second reference signal resource of the first group of reference signal resources; and determining, based on a received power of the second reference signal resource, the first interference corresponding to the first reference signal resource. ### Claim 14 (depends on 11) The terminal device according to claim 11, wherein when the wireless communications program is executed by the processor, the following step is further implemented: based on a channel and an interference that are obtained through measurement by using a target reference signal resource, determining whether to apply a measurement restriction to the target reference signal resource, wherein the target reference signal resource is any one of the first group of reference signal resources or any one of the second group of reference signal resources. ### Claim 15 (depends on 11) The terminal device according to claim 11, wherein when the wireless communications program is executed by the processor, the following step is further implemented: based on the channel and the interference that are obtained through measurement by using a target reference signal resource, determining whether to apply a measurement restriction to the target reference signal resource, wherein the target reference signal resource is any one of the first group of reference signal resources. ### Claim 16 (depends on 11) The terminal device according to claim 11, wherein when the wireless communications program is executed by the processor, the following step is further implemented: determining the overlapping reference signal resource as a reference signal resource for measuring the channel corresponding to the first reference signal resource, in a case that a currently measured beam is a transmit beam corresponding to the overlapping reference signal resource; and determining the overlapping reference signal resource as a reference signal resource for signal resource for measuring the second interference corresponding to the first reference signal resource, in a case that the currently measured beam is not the transmit beam corresponding to the overlapping reference signal resources. ### Claim 17 (depends on 11) The terminal device according to claim 11, wherein a second reference signal resource of the first group of reference signal resources completely overlaps with a third reference signal resource of the second group of reference signal resources, and the third reference signal resource is associated with the first reference signal resource; and wherein the measuring the first interference corresponding to the first reference signal resource and the measuring the second interference ponding to the first reference signal resource comprises: determining based on the QCL information of the first reference signal resource, a reception parameter; performing one of: receiving, based on the reception parameter, the third reference signal resource to determine a first received power; or receiving, based on the reception parameter, the second reference signal resource to determine a first received power; and determining, based on the first received power, the first interference and the second interference. ### Claim 18 (depends on 12) The terminal device according to claim 12, wherein the measuring the second interference corresponding to the first reference signal resource comprises: receiving, based on the determined reception parameter, a third reference signal resource of the second group of reference signal resources, wherein the third reference signal resource is associated with the first reference signal resource; and determining, based on a received power of the third reference signal resource, the second interference corresponding to the first reference signal resource. ### Claim 19 (depends on 13) The terminal device according to claim 13, wherein the second reference signal resource is a reference signal resource other than the first reference signal resource in the first group of reference signal resources, and a transmit beam corresponding to the second reference signal resource is different from a transmit beam corresponding to the first reference signal resource. ### Claim 20 A network device, comprising a memory, a processor, and a wireless communications program stored in the memory and running on the processor, wherein when the wireless communications program is executed by the processor, the following steps are implemented: transmit, to a terminal device, a first group of reference signal resources comprising a first reference signal resource and a second group of reference signal resources having an association relationship with the first group of reference signal resources, the first group of reference signal resources being used to measure a channel corresponding to a first reference signal resource in the first group of reference signal resources and a first interference corresponding to the first reference signal resource, the second group of reference signal resources being used to measure a second interference corresponding to the first reference signal resource, the first interference represents an inter-beam interference and the second interference represents a neighboring-cell interference, at least one reference signal resource in the second group of reference signal resources partially or completely overlaps with at least one reference signal resources in the first group of reference signal resources; measure, based on quasi co-location (QCL) information of the first reference signal resource by using the first group of reference signal resources, the channel corresponding to the first reference signal resource and the first interference corresponding to the first reference signal resources; and measure, based on the QCL information of the first reference signal resource by using the second group of reference signal resources, the second interference corresponding to the first reference signal resource.