# US 11,445,356 B2 · Signaling to support mobile integrated access and backhaul > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,445,356 B2 - Document ID: US11445356B2 - Status: Granted - Kind: B2 - Application number: 16/947,496 - Filed: 2020-08-04 - Published: 2021-02-11 - Granted: 2022-09-13 - Earliest claimed: 2019-08-08 - Assignees: QUALCOMM Incorporated - Applicants: QUALCOMM Incorporated - Inventors: Navid Abedini; Karl Georg Hampel; Jianghong Luo; Naeem Akl; Luca Blessent; Tao Luo; Junyi Li - Web page: https://patentgrep.com/patent/US11445356B2 ## CPC - H04W 8/08: Mobility data transfer - H04W 8/14: between corresponding nodes - H04W 84/047: {using dedicated repeater stations} - H04W 88/085: {Access point devices with remote components} - H04W 84/005: {Moving wireless networks} - H04W 88/08: Access point devices - H04W 92/20: between access points - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a wireless communication device may receive mobility state information associated with an integrated access backhaul (IAB) node. The mobility state information may include information associated with at least one of: a level of mobility of the IAB node, or a change in mobility of the IAB node. The wireless communication device may perform an operation based at least in part on the mobility state information associated with the IAB node. In some aspects, a wireless communication device may determine that mobility state information associated with an IAB node is to be transmitted, and may transmit the mobility state information associated with the IAB node based at least in part on the determination. Numerous other aspects are provided. ## Claims ### Claim 1 A method of wireless communication performed by a wireless communication device, the method comprising: determining that mobility state information associated with an integrated access backhaul (IAB) node is to be transmitted, wherein the mobility state information includes information indicating a transition of the IAB node from one mobility state to another mobility state; and transmitting the mobility state information associated with the IAB node based at least in part on the determination that the mobility state information is to be transmitted. ### Claim 2 (depends on 1) The method of claim 1, wherein the determination that the mobility state information is to be transmitted is based at least in part on an explicit request for the mobility state information associated with the IAB node. ### Claim 3 (depends on 1) The method of claim 1, further comprising receiving a reporting configuration for transmitting the mobility state information associated with the IAB node, wherein the mobility state information is transmitted based at least in part on the reporting configuration. ### Claim 4 (depends on 3) The method of claim 3, wherein the reporting configuration indicates at least one of: periodic reporting of the mobility state information, aperiodic reporting of the mobility state information, or event-triggered reporting of the mobility state information. ### Claim 5 (depends on 1) The method of claim 1, wherein transmitting the mobility state information comprises transmitting the mobility state information to a central unit (CU) of an IAB donor. ### Claim 6 (depends on 5) The method of claim 5, wherein the wireless communication device is one of: a distributed unit (DU) of the IAB node, a DU of another IAB node, a mobile termination component (MT) of the IAB node, or an MT of the other IAB node. ### Claim 7 (depends on 5) The method of claim 5, wherein transmitting the mobility state information comprises transmitting the mobility state information to a CU of another IAB donor. ### Claim 8 (depends on 1) The method of claim 1, wherein the IAB node is a first IAB node, and wherein transmitting the mobility state information comprises transmitting the mobility state information to a distributed unit (DU) of a second IAB node. ### Claim 9 (depends on 8) The method of claim 8, wherein the wireless communication device is one of: a mobile termination component (MT) of the first IAB node, or an MT of a third IAB node. ### Claim 10 (depends on 1) The method of claim 1, wherein transmitting the mobility state information comprises transmitting the mobility state information in at least one of: a radio resource control (RRC) message, downlink control information (DCI), a layer 1 reference signal, a medium access control (MAC) control element, a master information block (MIB), a random access channel (RACH) message, a system information block (SIB), a handover request message, or a secondary node (SN) addition request message. ### Claim 11 (depends on 1) The method of claim 1, wherein transmitting the mobility state information comprises transmitting the mobility state information in a communication that explicitly indicates the mobility state information. ### Claim 12 (depends on 1) The method of claim 1, wherein transmitting the mobility state information comprises transmitting the mobility state information in a communication that implicitly indicates the mobility state information. ### Claim 13 (depends on 1) The method of claim 1, wherein the transition of the IAB node from one mobility state to another mobility state comprises at least one of: a first transition from a stationary state to a first speed state, or a second transition from the first speed state to a second speed state. ### Claim 14 A method of wireless communication performed by a wireless communication device, the method comprising: receiving mobility state information associated with an integrated access backhaul (TAB) node, wherein the mobility state information includes information indicating a transition of the TAB node from one mobility state to another mobility state; and performing an operation based at least in part on the mobility state information associated with the TAB node. ### Claim 15 (depends on 14) The method of claim 14, further comprising requesting the mobility state information associated with the TAB node, wherein the mobility state information is received based at least in part on requesting the mobility state information. ### Claim 16 (depends on 14) The method of claim 14, further comprising providing a reporting configuration for transmitting the mobility state information associated with the TAB node, wherein the mobility state information is received based at least in part on the reporting configuration. ### Claim 17 (depends on 16) The method of claim 16, wherein the reporting configuration indicates at least one of: periodic reporting of the mobility state information, aperiodic reporting of the mobility state information, or event-triggered reporting of the mobility state information. ### Claim 18 (depends on 14) The method of claim 14, wherein the operation includes providing the mobility state information associated with the IAB node to at least one of: a central unit (CU) of an IAB donor, a distributed unit (DU) of another IAB node, or a mobile termination component (MT) of the other IAB node. ### Claim 19 (depends on 14) The method of claim 14, wherein the wireless communication device is a central unit (CU) of an IAB donor. ### Claim 20 (depends on 19) The method of claim 19, wherein the mobility state information is received from one of: a distributed unit (DU) of the IAB node, a DU of another IAB node, a mobile termination component (MT) of the IAB node, or an MT of the other IAB node. ### Claim 21 (depends on 19) The method of claim 19, wherein the mobility state information is received from a CU of another IAB donor. ### Claim 22 (depends on 14) The method of claim 14, wherein the IAB node is a first IAB node, and the wireless communication device is a distributed unit (DU) of a second IAB node. ### Claim 23 (depends on 22) The method of claim 22, wherein the mobility state information is received from a mobile termination component (MT) of the first IAB node or an MT of a third IAB node. ### Claim 24 (depends on 14) The method of claim 14, wherein receiving the mobility state information comprises receiving the mobility state information in at least one of: a radio resource control (RRC) message, downlink control information (DCI), a layer 1 reference signal, a medium access control (MAC) control element, a master information block (MIB), a random access channel (RACH) message, a system information block (SIB), a handover request message, or a secondary node (SN) addition request message. ### Claim 25 (depends on 14) The method of claim 14, wherein receiving the mobility state information comprises receiving the mobility state information in a communication that explicitly indicates the mobility state information. ### Claim 26 (depends on 14) The method of claim 14, wherein receiving the mobility state information comprises receiving the mobility state information in a communication that implicitly indicates the mobility state information. ### Claim 27 (depends on 14) The method of claim 14, wherein the operation is associated with at least one of: IAB topology and resource management, local scheduling, beam management, beam tracking, synchronization tracking, positioning, quality of service (QoS) type support, an access procedure, or paging. ### Claim 28 A wireless communication device for wireless communication, comprising: a memory; and one or more processors coupled to the memory, the one or more processors configured to: determine that mobility state information associated with an integrated access backhaul (IAB) node is to be transmitted, wherein the mobility state information includes information indicating a transition of the TAB node from one mobility state to another mobility state; and transmit the mobility state information associated with the TAB node based at least in part on the determination that the mobility state information is to be transmitted. ### Claim 29 (depends on 28) The wireless communication device of claim 28, wherein the determination that the mobility state information is to be transmitted is based at least in part on an explicit request for the mobility state information associated with the TAB node. ### Claim 30 A wireless communication device for wireless communication, comprising: a memory; and one or more processors coupled to the memory, the one or more processors configured to: receive mobility state information associated with an integrated access backhaul (IAB) node, wherein the mobility state information includes information indicating a transition of the TAB node from one mobility state to another mobility state; and perform an operation based at least in part on the mobility state information associated with the TAB node. ### Claim 31 (depends on 30) The wireless communication device of claim 30, wherein the one or more processors are further configured to request the mobility state information associated with the IAB node, and the mobility state information is received based at least in part on the request.