# US 11,115,972 B2 · Techniques for updating resource types > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,115,972 B2 - Document ID: US11115972B2 - Status: Granted - Kind: B2 - Application number: 16/667,607 - Filed: 2019-10-29 - Published: 2020-05-07 - Granted: 2021-09-07 - Earliest claimed: 2018-11-02 - Assignees: QUALCOMM Incorporated - Applicants: QUALCOMM Incorporated - Inventors: Jianghong Luo; Navid Abedini; Muhammad Nazmul Islam; Luca Blessent; Tao Luo; Junyi Li; Karl Georg Hampel - Web page: https://patentgrep.com/patent/US11115972B2 ## CPC - H04L 5/0032: {Distributed allocation, i.e. involving a plurality of allocating devices, each making partial allocation} - H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal - H04B 7/15: Active relay systems - H04W 72/20: Control channels or signalling for resource management - H04W 72/21: in the uplink direction of a wireless link, i.e. towards the network - H04W 76/36: for reassigning the resources associated with the released connections - H04B 7/15542: {Selecting at relay station its transmit and receive resources (selection of wireless resources by user or terminal H04W72/02; arrangements affording multiple use of the transmission path by two-dimensional division of the resources H04L5/0003, or by allocating sub-channels H04L5/003)} - H04W 84/047: {using dedicated repeater stations} - H04W 92/12: between access points and access point controllers - H04W 92/20: between access points - 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) - H04B: TRANSMISSION ## Abstract A parent access node may establish a first link with a child access node. In some cases, the parent access node may determine to release a resource of the first. The parent access node may transmit downlink signaling indicating release of the resource. As such, the child node may schedule a child link resource (e.g., a parent-controlled resource) corresponding to the released resource. The child node may then communicate with a child node of its own in accordance with the scheduling of the child link resource. In some cases, the resource release indication may be associated with a one-time resource release, or may be associated with a semi-persistent release (e.g., until the parent node reclaims the released resources). In some examples, the child node may transmit an uplink message to request resources from the parent node (e.g., and the resource release may be based on the request). ## Claims ### Claim 1 An apparatus for wireless communication by an access node, comprising: a processor, memory in electronic communication with the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to: receive a semi-static resource pattern for a first parent access node and for each additional parent access node of the access node; receive downlink signaling indicating a resource release for a resource of a first link configured between the first parent access node and the access node; determine that the resource released on the first link is available on a second link configured between a second parent access node and the access node based at least in part on the semi-static resource pattern; schedule a parent-controlled resource, corresponding to the resource released on the first link, of a third link configured between the access node and a child access node based at least in part on the resource release for the resource of the first link and the resource released on the first link being available on the second link; and communicate with the child access node via the parent-controlled resource based at least in part on the scheduling. ### Claim 2 (depends on 1) The apparatus of claim 1, wherein the instructions to schedule the parent-controlled resource of the third link further are executable by the processor to cause the apparatus to: identify that a resource type of a resource corresponding to the resource release for the each additional parent access node is a not available resource type; and schedule a subset of a plurality of distributed units of the access node to which the downlink signaling corresponds based at least in part on the downlink signaling and the resource type. ### Claim 3 (depends on 1) The apparatus of claim 1, wherein the instructions to schedule the parent-controlled resource further are executable by the processor to cause the apparatus to: determine that a corresponding resource type for a corresponding resource for the each additional parent access node is a resource type based at least in part on the semi-static resource pattern. ### Claim 4 (depends on 3) The apparatus of claim 3, wherein the instructions to schedule the parent-controlled resource further are executable by the processor to cause the apparatus to: monitor for second downlink signaling indicating a second resource release for a fourth link between at least one additional parent access node and the access node based at least in part on the resource type; and determine to schedule the parent-controlled resource based at least in part on receiving the second downlink signaling indicating the second resource release. ### Claim 5 (depends on 3) The apparatus of claim 3, wherein the instructions to schedule the parent-controlled resource further are executable by the processor to cause the apparatus to: monitor for second downlink signaling indicating a second resource release for a fourth link between at least one additional parent access node and the access node based at least in part on the resource type; and determine not to schedule the parent-controlled resource based at least in part on determining that the second downlink signaling has not been received. ### Claim 6 (depends on 1) The apparatus of claim 1, wherein the instructions to schedule the parent-controlled resource further are executable by the processor to cause the apparatus to: receive child access node information corresponding to a first child access node of the first parent access node, wherein the parent-controlled resource is scheduled based at least in part on the child access node information. ### Claim 7 (depends on 1) The apparatus of claim 1, wherein the instructions are further executable by the processor to cause the apparatus to: determine that a second child link has been established with a second child access node; and transmit, to the child access node, second child access node information of the second child access node. ### Claim 8 (depends on 7) The apparatus of claim 7, wherein the instructions to transmit the second child access node information further are executable by the processor to cause the apparatus to: transmit the second child access node information indicating a resource pattern of a distributed unit of the access node for the second child access node. ### Claim 9 (depends on 7) The apparatus of claim 7, wherein the instructions to transmit the second child access node information further are executable by the processor to cause the apparatus to: transmit the second child access node information indicating a dynamic downlink indication for controlling a resource of the second child access node. ### Claim 10 (depends on 7) The apparatus of claim 7, wherein the instructions to transmit the second child access node information further are executable by the processor to cause the apparatus to: transmit the second child access node information indicating a semi-static slot format configuration or a dynamic slot format configuration of the second child access node. ### Claim 11 (depends on 7) The apparatus of claim 7, wherein the instructions to transmit the second child access node information further are executable by the processor to cause the apparatus to: transmit the second child access node information indicating a semi-static resource allocation or a dynamic resource allocation scheduled by a grant for the second child access node. ### Claim 12 (depends on 1) The apparatus of claim 1, wherein the downlink signaling indicating the resource release is a slot format indicator (SFI) message carried by a group-common physical downlink control channel, a downlink control information scheduling grant carried by a physical downlink control channel, or a medium access control (MAC) control element. ### Claim 13 (depends on 1) The apparatus of claim 1, wherein the instructions to receive the downlink signaling further are executable by the processor to cause the apparatus to: receive an indication that the resource release is a one-time resource release or a semi-persistent resource release. ### Claim 14 A method for wireless communications by an access node, comprising: receiving a semi-static resource pattern for a first parent access node and for each additional parent access node of the access node; receiving downlink signaling indicating a resource release for a resource of a first link configured between the first parent access node and the access node; determining that the resource released on the first link is available on a second link configured between a second parent access node and the access node based at least in part on the semi-static resource pattern; scheduling a parent-controlled resource, corresponding to the resource released on the first link, of a third link configured between the access node and a child access node based at least in part on the resource release for the resource of the first link and the resource released on the first link being available on the second link; and communicating with the child access node via the parent-controlled resource based at least in part on the scheduling. ### Claim 15 (depends on 14) The method of claim 14, wherein scheduling the parent-controlled resource of the third link further comprises: identifying that a resource type of a resource of at least one of the each additional parent access node that corresponds to the resource of the first link is a not available resource type; and scheduling a subset of a plurality of distributed units of the access node to which the downlink signaling corresponds based at least in part on the downlink signaling and the resource type. ### Claim 16 (depends on 14) The method of claim 14, wherein scheduling the parent-controlled resource further comprises: determining that a corresponding resource type for a corresponding resource for the each additional parent access node is a resource type based at least in part on the semi-static resource pattern. ### Claim 17 (depends on 16) The method of claim 16, wherein scheduling the parent-controlled resource further comprises: monitoring for second downlink signaling indicating a second resource release for a fourth link between at least one additional parent access node and the access node based at least in part on the resource type; and determining to schedule the parent-controlled resource based at least in part on receiving the second downlink signaling indicating the second resource release. ### Claim 18 (depends on 16) The method of claim 16, wherein scheduling the parent-controlled resource further comprises: monitoring for second downlink signaling indicating a second resource release for a fourth link between at least one additional parent access node and the access node based at least in part on the resource type; and determining not to schedule the parent-controlled resource based at least in part on determining that the second downlink signaling has not been received. ### Claim 19 (depends on 14) The method of claim 14, wherein scheduling the parent-controlled resource further comprises: receiving child access node information corresponding to a first child access node of the first parent access node, wherein the parent-controlled resource is scheduled based at least in part on the child access node information. ### Claim 20 (depends on 14) The method of claim 14, further comprising: determining that a second child link has been established with a second child access node; and transmitting, to the child access node, second child access node information of the second child access node. ### Claim 21 (depends on 20) The method of claim 20, wherein transmitting the second child access node information further comprises: transmitting the second child access node information indicating a resource pattern of a distributed unit of the access node for the second child access node. ### Claim 22 (depends on 20) The method of claim 20, wherein transmitting the second child access node information further comprises: transmitting the second child access node information indicating a dynamic downlink indication for controlling a resource of the second child access node. ### Claim 23 (depends on 20) The method of claim 20, wherein transmitting the second child access node information further comprises: transmitting the second child access node information indicating a semi-static slot format configuration or a dynamic slot format configuration of the second child access node. ### Claim 24 (depends on 20) The method of claim 20, wherein transmitting the second child access node information further comprises: transmit the second child access node information indicating a semi-static resource allocation or a dynamic resource allocation scheduled by a grant for the second child access node. ### Claim 25 (depends on 14) The method of claim 14, wherein the downlink signaling indicating the resource release is a slot format indicator (SFI) message carried by a group-common physical downlink control channel, a downlink control information scheduling grant carried by a physical downlink control channel, or a medium access control (MAC) control element. ### Claim 26 An apparatus for wireless communications by an access node, comprising: means for receiving a semi-static resource pattern for a first parent access node and for each additional parent access node of the access node; means for receiving downlink signaling indicating a resource release for a resource of a first link configured between the first parent access node and the access node; means for determining that the resource released on the first link is available on a second link configured between a second parent access node and the access node based at least in part on the semi-static resource pattern; means for scheduling a parent-controlled resource, corresponding to the resource released on the first link, of a third link configured between the access node and a child access node based at least in part on the resource release for the resource of the first link and the resource released on the first link being available on the second link; and means for communicating with the child access node via the parent-controlled resource based at least in part on the scheduling. ### Claim 27 (depends on 26) The apparatus of claim 26, further comprising: means for identifying that a resource type of a resource corresponding to the resource release for the each additional parent access node is a not available resource type; and means for scheduling a subset of a plurality of distributed units of the access node to which the downlink signaling corresponds based at least in part on the downlink signaling and the resource type. ### Claim 28 (depends on 26) The apparatus of claim 26, further comprising: means for determining that a corresponding resource type for a corresponding resource for the each additional parent access node is a resource type based at least in part on the semi-static resource pattern. ### Claim 29 A non-transitory computer-readable medium storing code for wireless communications by an access node, the code comprising instructions executable by a processor to: receive a semi-static resource pattern for a first parent access node and for each additional parent access node of the access node; receive downlink signaling indicating a resource release for a resource of a first link configured between the first parent access node and the access node; determine that the resource released on the first link is available on a second link configured between a second parent access node and the access node based at least in part on the semi-static resource pattern; schedule a parent-controlled resource, corresponding to the resource released on the first link, of a third link configured between the access node and a child access node based at least in part on the resource release for the resource of the first link and the resource released on the first link being available on the second link; and communicate with the child access node via the parent-controlled resource based at least in part on the scheduling. ### Claim 30 (depends on 29) The non-transitory computer-readable medium of claim 29, wherein the instructions to schedule the parent-controlled resource of the third link further are executable by the processor to: identify that a resource type of a resource corresponding to the resource release for the each additional parent access node is a not available resource type; and schedule a subset of a plurality of distributed units of the access node to which the downlink signaling corresponds based at least in part on the downlink signaling and the resource type. ### Claim 31 (depends on 29) The non-transitory computer-readable medium of claim 29, wherein the instructions to schedule the parent-controlled resource further are executable by the processor to: determine that a corresponding resource type for a corresponding resource for the each additional parent access node is a resource type based at least in part on the semi-static resource pattern.