# US 12,004,131 B2 · Extension of an evaluation period of integrated access backhaul mobile termination due to communication of the co-located integrated access backhaul distributed unit > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,004,131 B2 - Document ID: US12004131B2 - Status: Granted - Kind: B2 - Application number: 17/393,350 - Filed: 2021-08-03 - Published: 2023-02-16 - Granted: 2024-06-04 - Earliest claimed: 2021-08-03 - Assignees: QUALCOMM Incorporated - Applicants: QUALCOMM Incorporated - Inventors: Muhammad Nazmul Islam; Navid Abedini - Web page: https://patentgrep.com/patent/US12004131B2 ## CPC - H04L 5/0051: {of dedicated pilots, i.e. pilots destined for a single user or terminal} - H04W 72/0446: Resources in time domain, e.g. slots or frames - 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)} - H04W 24/08: Testing, {supervising or monitoring} using real traffic - H04L 5/0053: {Allocation of signalling, i.e. of overhead other than pilot signals} - H04W 48/16: Discovering, processing access restriction or access information - H04W 88/085: {Access point devices with remote components} - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract The apparatus may be a first device at a first IAB node or the first IAB node itself. The IAB node may be configured to receive a configuration for a first set of reference signals associated with an IAB-MT function of the IAB node, wherein the first set of reference signals overlaps in time with a second set of time periods associated with an IAB-DU function of the IAB node. The IAB node may further be configured to extend an IAB-MT reference-signal measurement period based on the overlap between the first set of reference signals for measurement with the IAB-MT function of the IAB node and the second set of time periods associated with the IAB-DU function of the IAB node. ## Claims ### Claim 1 An apparatus for wireless communication at an integrated access backhaul (IAB) node comprising: a memory; and at least one processor coupled to the memory and configured to: receive a configuration for a first set of reference signals associated with an IAB mobile termination (MT) (IAB-MT) function of the IAB node, wherein the first set of reference signals overlaps in time with a second set of time periods associated with an IAB distributed unit (DU) (IAB-DU) function of the IAB node; and extend an IAB-MT reference-signal measurement period of the IAB node by scaling a baseline reference-signal measurement period with a scaling factor provided by a network or selected from a plurality of candidate values for the scaling factor based on the overlap between the first set of reference signals for measurement with the IAB-MT function of the IAB node and the second set of time periods associated with the IAB-DU function of the IAB node. ### Claim 2 (depends on 1) The apparatus of claim 1, wherein the scaling factor is based on the overlap between the first set of reference signals associated with the IAB-MT function and the second set of time periods associated with the IAB-DU function. ### Claim 3 (depends on 1) The apparatus of claim 1, the at least one processor further configured to: receive, from the network, a scaling factor configuration indicating the scaling factor. ### Claim 4 (depends on 3) The apparatus of claim 3, wherein the scaling factor configuration is received via at least one of a radio resource control (RRC) message, a media access control (MAC) control element (CE) (MAC-CE), or downlink control information (DCI). ### Claim 5 (depends on 3) The apparatus of claim 3, the at least one processor further configured to: transmit a request for the extended reference signal measurement period via at least one of a physical uplink shared channel (PUSCH) or a physical uplink control channel (PUCCH). ### Claim 6 (depends on 1) The apparatus of claim 1, the at least one processor further configured to: receive, from a network, the plurality of candidate values for the scaling factor; and select a value from the plurality of candidate values for the scaling factor based on the overlap of the first set of reference signals and the second set of time periods. ### Claim 7 (depends on 1) The apparatus of claim 1, wherein extending the IAB-MT reference-signal measurement period is further based on one or more of a periodicity of a SS Block Measurement Timing Configuration (SMTC) and a measurement gap (MG) configuration. ### Claim 8 (depends on 1) The apparatus of claim 1, wherein the configuration of the first set of reference signals comprises at least one of a radio link monitoring reference signal configuration, a beam failure detection reference signal configuration, a candidate beam detection reference signal configuration, a synchronization signal block (SSB) measurement and timing configuration (SMTC), or a measurement gap (MG) configuration. ### Claim 9 (depends on 1) The apparatus of claim 1, wherein the first set of reference signals comprises at least one of a synchronization signal blocks (SSB), or a channel state information reference signals (CSI-RS). ### Claim 10 (depends on 1) The apparatus of claim 1, wherein the second set of time periods is associated with hard time resources for the IAB-DU function that are not available for the measurement of the first set of reference signals by the IAB-MT function. ### Claim 11 (depends on 1) The apparatus of claim 1, wherein the second set of time periods comprise flexible time resources that have been released to the IAB node. ### Claim 12 (depends on 1) The apparatus of claim 1, wherein the second set of time periods comprise cell-specific communication time resources. ### Claim 13 (depends on 12) The apparatus of claim 12, wherein the cell-specific communication time resources are for at least one of a synchronization signal block (SSB), a random access channel (RACH) communication, a system information communication, or a paging communication. ### Claim 14 (depends on 1) The apparatus of claim 1, wherein the second set of time periods comprise guard symbols at the IAB node for switching between the IAB-MT function and the IAB-DU function. ### Claim 15 (depends on 1) The apparatus of claim 1, the at least one processor further configured to: perform at least one measurement of the first set of reference signals based on an extension of the IAB-MT reference-signal measurement period. ### Claim 16 (depends on 15) The apparatus of claim 15, wherein the at least one measurement includes one or more of radio link monitoring, beam failure detection, a cell detection measurement, or an intra-frequency neighbor cell measurement. ### Claim 17 (depends on 1) The apparatus of claim 1, further comprising at least one transceiver coupled to the at least one processor. ### Claim 18 An apparatus for wireless communication at a network node comprising: a memory; and at least one processor coupled to the memory and configured to: output, to an integrated access backhaul (IAB) node, a reference signal configuration for measurement of a first set of reference signals with an IAB mobile termination (IAB-MT) function of the IAB node; and output, to the IAB node, a scaling factor configuration comprising a scaling factor, or a plurality of candidate values for the scaling factor, for extending an IAB-MT reference-signal measurement period based on an overlap between the first set of reference signals for measurement with the IAB-MT function of the IAB node and a second set of time periods associated with an IAB distributed unit (DU) (IAB-DU) function of the IAB node. ### Claim 19 (depends on 18) The apparatus of claim 18, wherein configuring the IAB node with the scaling factor comprises: transmitting the scaling factor configuration via at least one of a radio resource control (RRC) message, a media access control (MAC) control element (CE) (MAC-CE), or downlink control information (DCI). ### Claim 20 (depends on 18) The apparatus of claim 18, the at least one processor further configured to: receive a request for the extended reference signal measurement period via at least one of a physical uplink shared channel (PUSCH) or a physical uplink control channel (PUCCH) from the IAB node. ### Claim 21 (depends on 18) The apparatus of claim 18, wherein configuring the scaling factor includes transmitting the plurality of candidate values for the scaling factor that are selectable based on the overlap of the first set of reference signals and the second set of time periods. ### Claim 22 (depends on 18) The apparatus of claim 18, the first set of reference signals comprises at least one of radio link monitoring reference signals, beam failure detection reference signals, candidate beam detection reference signals, a synchronization signal block (SSB) measurement and timing configuration (SMTC), or a measurement gap (MG) configuration. ### Claim 23 (depends on 18) The apparatus of claim 18, wherein the first set of reference signals comprises at least one of a synchronization signal blocks (SSB), or a channel state information reference signals (CSI-RS). ### Claim 24 (depends on 18) The apparatus of claim 18, wherein the second set of time periods comprise one or more of hard time resources for the IAB-DU function that are not available for the measurement of the first set of reference signals by the IAB-MT function, flexible time resources that have been released to the IAB node by a network node, cell-specific communication time resources, or guard symbols at the IAB node that for switching between the IAB-MT function and the IAB-DU function. ### Claim 25 (depends on 18) The apparatus of claim 18, wherein the measurement includes one or more of radio link monitoring, beam failure detection, a cell detection measurement, or an intra-frequency neighbor cell measurement. ### Claim 26 A method of wireless communication at an integrated access backhaul (IAB) node, comprising: receiving a configuration for a first set of reference signals associated with an IAB mobile termination (MT) (IAB-MT) function of the IAB node, wherein the first set of reference signals overlaps in time with a second set of time periods associated with an IAB distributed unit (DU) (IAB-DU) function of the IAB node; and extending an IAB-MT reference-signal measurement period of the IAB node by scaling a baseline reference-signal measurement period with a scaling factor provided by a network or selected from a plurality of candidate values for the scaling factor based on the overlap between the first set of reference signals for measurement with the IAB-MT function of the IAB node and the second set of time periods associated with the IAB-DU function of the IAB node. ### Claim 27 (depends on 26) The method of claim 26, wherein the scaling factor is based on the overlap between the first set of reference signals associated with the IAB-MT function and the second set of time periods associated with the IAB-DU function. ### Claim 28 A method of wireless communication at a network node, comprising: outputting, to an integrated access backhaul (IAB) node, a reference signal configuration for measurement of a first set of reference signals with an IAB mobile termination (IAB-MT) function of the IAB node; and outputting, to the IAB node, a scaling factor configuration comprising a scaling factor, or a plurality of candidate values for the scaling factor, for extending an IAB-MT reference-signal measurement period based on an overlap between the first set of reference signals for measurement with the IAB-MT function of the IAB node and a second set of time periods associated with an IAB distributed unit (DU) (IAB-DU) function of the IAB node. ### Claim 29 (depends on 28) The method of claim 28, wherein outputting the scaling factor configuration configuring the IAB node with the scaling factor or the plurality of candidate values for the scaling factor comprises: transmitting the scaling factor configuration via at least one of a radio resource control (RRC) message, a media access control (MAC) control element (CE) (MAC-CE), or downlink control information (DCI).