# US 12,016,028 B2 · Supporting allocation modification during transition instance in integrated access and backhaul network > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,016,028 B2 - Document ID: US12016028B2 - Status: Granted - Kind: B2 - Application number: 17/201,376 - Filed: 2021-03-15 - Published: 2021-09-23 - Granted: 2024-06-18 - Earliest claimed: 2020-03-19 - Assignees: QUALCOMM Incorporated - Applicants: QUALCOMM Incorporated - Inventors: Jianghong Luo; Navid Abedini; Tao Luo; Luca Blessent; Junyi Li; Karl Georg Hampel - Web page: https://patentgrep.com/patent/US12016028B2 ## CPC - H04L 5/0044: {Allocation of payload; Allocation of data channels, e.g. PDSCH or PUSCH} - H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal - H04L 1/1607: Details of the supervisory signal - H04L 1/1819: {with retransmission of additional or different redundancy} - H04L 1/1861: {Physical mapping arrangements (for ACK signaling see also H04L5/0053)} - H04L 1/1893: {Physical mapping arrangements (physical resource mapping in general H04L5/00)} - H04L 1/1896: {ARQ related signaling} - H04L 5/0051: {of dedicated pilots, i.e. pilots destined for a single user or terminal} - H04L 5/006: {Quality of the received signal, e.g. BER, SNR, water filling} - H04L 5/0094: {Indication of how sub-channels of the path are allocated} - H04W 72/21: in the uplink direction of a wireless link, i.e. towards the network - H04W 76/27: Transitions between radio resource control [RRC] states - H04L 2001/0097: {Relays} - 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 Aspects presented herein may enable an IAB node to modify a resource allocation or change one or more parameters related to the resource allocation when the IAB node detects that the resource allocation overlaps with guard symbols or another resource allocation. In one aspect, an IAB node determines that a first channel allocation will be punctured based on an overlap of the first channel allocation with at least one of a guard symbol or a second channel allocation. The IAB node uses, for the first channel allocation or the second channel allocation, one or more of a modified parameter or a modified grant in response to determining that the first channel allocation will be punctured. ## Claims ### Claim 1 A method of wireless communication at a wireless device, comprising: transmitting or receiving a set of rules to apply when a channel allocation is punctured due to overlapping of one or more resources, wherein the set of rules includes using one or more of at least one modified resource allocation or a modified grant; determining a first channel allocation will be punctured based on an overlap of the first channel allocation with at least one of a guard symbol or a second channel allocation, wherein the first channel allocation is from a parent device of the wireless device to the wireless device and the second channel allocation is from the wireless device to a child device of the wireless device, or wherein the first channel allocation is from the wireless device to the child device of the wireless device and the second channel allocation is from the parent device of the wireless device to the wireless device; and using, for the first channel allocation, one or more of the at least one modified resource allocation or the modified grant for communication, in response to determining the first channel allocation will be punctured and based on the set of rules. ### Claim 2 (depends on 1) The method of claim 1, wherein the first channel allocation is from the parent device of the wireless device to the wireless device and the second channel allocation is from the wireless device to the child device of the wireless device. ### Claim 3 (depends on 1) The method of claim 1, wherein the first channel allocation is from the wireless device to the child device of the wireless device and the second channel allocation is from the parent device of the wireless device to the wireless device. ### Claim 4 (depends on 1) The method of claim 1, wherein the method includes using the at least one modified resource allocation for the communication, comprising: modifying a location of a demodulation reference signal (DM-RS) to a symbol that does not overlap the guard symbol or the second channel allocation. ### Claim 5 (depends on 1) The method of claim 1, wherein the method includes using the at least one modified resource allocation for the communication, comprising: modifying a location of one of an acknowledgement (ACK) resource or a negative acknowledgment (NACK) resource to a symbol that does not overlap the guard symbol or the second channel allocation. ### Claim 6 (depends on 1) The method of claim 1, wherein the first channel allocation is for a physical uplink shared channel (PUSCH) or a physical downlink shared channel (PDSCH) that overlaps with one of one or more guard symbols or the second channel allocation, and wherein the method includes using the at least one modified resource allocation for the communication, comprising: modifying a redundancy version of the PUSCH or the PDSCH. ### Claim 7 (depends on 1) The method of claim 1, wherein the first channel allocation is for a physical uplink shared channel (PUSCH) or a physical downlink shared channel (PDSCH) that overlaps with one or more guard symbols or the second channel allocation, and wherein the method includes using the at least one modified resource allocation for the communication, comprising: modifying a transport block size of the PUSCH or the PDSCH. ### Claim 8 (depends on 7) The method of claim 7, wherein the wireless device excludes counting overlapped symbols in resource elements used to calculate the transport block size of the PUSCH or the PDSCH. ### Claim 9 (depends on 1) The method of claim 1, wherein the wireless device applies a first set of allocations based on the overlap of the first channel allocation with at least one of the guard symbol or the second channel allocation that is different from a second set of allocations when the first channel allocation does not overlap with the guard symbol and the second channel allocation. ### Claim 10 (depends on 9) The method of claim 9, further comprising: receiving a configuration of at least one of the first set of allocations or the second set of allocations from the parent device. ### Claim 11 (depends on 10) The method of claim 10, wherein the configuration is received in radio resource control (RRC) signaling or a medium access control-control element (MAC-CE). ### Claim 12 (depends on 9) The method of claim 9, further comprising: transmitting a configuration of the first set of allocations and the second set of allocations to the child device. ### Claim 13 (depends on 12) The method of claim 12, wherein the configuration is transmitted in radio resource control (RRC) signaling or a medium access control-control element (MAC-CE). ### Claim 14 (depends on 1) The method of claim 1, wherein the first channel allocation is based on a semi-static allocation or a previous dynamic allocation from the parent device and the second channel allocation is for the child device, and wherein the method includes using the modified grant for the communication, the method further comprising: receiving, from a parent node, the modified grant replacing the first channel allocation based on the overlap. ### Claim 15 (depends on 1) The method of claim 1, wherein the first channel allocation is based on a semi-static allocation or a previous dynamic allocation for the child device and the second channel allocation is from the parent device, and wherein the method includes using the modified grant for the communication, the method further comprising: transmitting, to the child device, the modified grant replacing the second channel allocation based on the overlap. ### Claim 16 (depends on 1) The method of claim 1, wherein the wireless device comprises an integrated access and backhaul (IAB) node. ### Claim 17 (depends on 16) The method of claim 16, wherein the first channel allocation is for a first communication with a parent node of the TAB node using a mobile termination (MT) function of the TAB node, and the second channel allocation is for a second communication with a child node of the TAB node using a distributed unit (DU) function of the TAB node. ### Claim 18 (depends on 16) The method of claim 16, wherein the first channel allocation is for a first communication with a child node of the IAB node using a distributed unit (DU) function of the IAB node, and the second channel allocation is for a second communication with a parent node of the IAB node using a mobile termination (MT) function of the IAB node. ### Claim 19 (depends on 16) The method of claim 16, wherein the wireless device uses a same rule as a parent IAB node to determine the overlap or to determine the at least one modified resource allocation or the modified grant. ### Claim 20 (depends on 1) The method of claim 1, further comprising: using multiple hypotheses to receive the communication based on the first channel allocation, wherein a first hypothesis is based on an unmodified allocation and a second hypothesis is based on a modified allocation. ### Claim 21 (depends on 1) The method of claim 1, wherein the determining the first channel allocation will be punctured based on the overlap of the first channel allocation with at least one of the guard symbol or the second channel allocation comprises: identifying the first channel allocation overlaps with the guard symbol or the second channel allocation; and discarding at least a portion of resources of the first channel allocation that overlap with the guard symbol or the second channel allocation. ### Claim 22 (depends on 1) The method of claim 1, wherein the at least one modified resource allocation is used for the first channel allocation in response to determining the first channel allocation will be punctured. ### Claim 23 (depends on 1) The method of claim 1, wherein the modified grant is used for the first channel allocation in response to determining the first channel allocation will be punctured. ### Claim 24 (depends on 1) The method of claim 1, wherein the set of rules includes using the at least one modified resource allocation and the modified grant, and wherein using the one or more of the at least one modified resource allocation or the modified grant comprises using the at least one modified resource allocation and the modified grant. ### Claim 25 (depends on 1) The method of claim 1, wherein the set of rules includes using at least one modified grant, and wherein using the one or more of the at least one modified resource allocation or the modified grant comprises using the at least one modified grant. ### Claim 26 (depends on 1) The method of claim 1, wherein the method includes transmitting the set of rules to apply when the channel allocation is punctured. ### Claim 27 (depends on 1) The method of claim 1, wherein the method includes receiving the set of rules to apply when the channel allocation is punctured. ### Claim 28 (depends on 1) The method of claim 1, wherein the method includes using the one or more of the at least one modified resource allocation or the modified grant for the communication in response to determining the first channel allocation will be punctured based on the overlap of the first channel allocation with the guard symbol. ### Claim 29 (depends on 1) The method of claim 1, wherein the method includes using the one or more of the at least one modified resource allocation or the modified grant for the communication in response to determining the first channel allocation will be punctured based on the overlap of the first channel allocation with the second channel allocation. ### Claim 30 An apparatus for wireless communication at a wireless device, comprising: memory; and one or more processors coupled to the memory and configured to cause the wireless device to: transmit or receive a set of rules to apply when a channel allocation is punctured due to overlapping of one or more resources, wherein the set of rules includes use of one or more of at least one modified resource allocation or a modified grant; determine a first channel allocation will be punctured based on an overlap of the first channel allocation with at least one of a guard symbol or a second channel allocation, wherein the first channel allocation is from a parent device of the wireless device to the wireless device and the second channel allocation is from the wireless device to a child device of the wireless device, or wherein the first channel allocation is from the wireless device to the child device of the wireless device and the second channel allocation is from the parent device of the wireless device to the wireless device; and use, for the first channel allocation, one or more of the at least one modified resource allocation or the modified grant for communication, in response to a determination that the first channel allocation will be punctured and based on the set of rules. ### Claim 31 (depends on 30) The apparatus of claim 30, wherein to use the at least one modified resource allocation the one or more processors are configured to cause the wireless device to: modify a location of a demodulation reference signal (DM-RS) or an acknowledgement/negative acknowledgment (ACK/NACK) to a symbol that does not overlap the guard symbol or the second channel allocation. ### Claim 32 (depends on 30) The apparatus of claim 30, wherein the first channel allocation is for a physical uplink shared channel (PUSCH) or a physical downlink shared channel (PDSCH) that overlaps with one or more guard symbols or the second channel allocation, and wherein to use the one or more of the at least one modified resource allocation the one or more processors are configured to cause the wireless device to: modify a redundancy version or a transport block size of the PUSCH or the PDSCH. ### Claim 33 (depends on 30) The apparatus of claim 30, wherein the one or more processors are further configured to cause the wireless device to apply a first set of modified resource allocations based on the overlap and apply a second set of modified resource allocations when there is no overlap. ### Claim 34 (depends on 30) The apparatus of claim 30, wherein the one or more processors are further configured to cause the wireless device to: receive a configuration of the first set of modified resource allocations and the second set of modified resource allocations from the parent device. ### Claim 35 (depends on 30) The apparatus of claim 30, wherein the one or more processors are further configured to cause the wireless device to: transmit the configuration of the first set of modified resource allocations and the second set of modified resource allocations to the child device. ### Claim 36 (depends on 30) The apparatus of claim 30, wherein the first channel allocation is based on a semi-static allocation or a previous dynamic allocation from the parent device and the second channel allocation is for the child device, the one or more processors are further configured to cause the wireless device to: receive the modified grant from a parent node that replaces the first channel allocation based on the overlap, or transmit the modified grant to the child device that replaces the second channel allocation based on the overlap. ### Claim 37 (depends on 30) The apparatus of claim 30, wherein to determine the first channel allocation will be punctured based on the overlap of the first channel allocation with at least one of the guard symbol or the second channel allocation, the one or more processors are configured to cause the wireless device to: identify the first channel allocation overlaps with the guard symbol or the second channel allocation; and discard at least a portion of resources of the first channel allocation that overlap with the guard symbol or the second channel allocation. ### Claim 38 (depends on 30) The apparatus of claim 30, wherein the one or more processors are configured to cause the wireless device to individually or in combination transmit or receive the set of rules, determine the first channel allocation will be punctured, and use the one or more of the at least one modified resource allocation or the modified grant. ### Claim 39 (depends on 30) The apparatus of claim 30, wherein the set of rules includes using the at least one modified resource allocation and the modified grant, and wherein to use the one or more of the at least one modified resource allocation or the modified grant the one or more processors are configured to cause the wireless device to use the at least one modified resource allocation and the modified grant. ### Claim 40 (depends on 30) The apparatus of claim 30, wherein the first channel allocation is from the parent device of the wireless device to the wireless device and the second channel allocation is from the wireless device to the child device of the wireless device. ### Claim 41 (depends on 30) The apparatus of claim 30, wherein the first channel allocation is from the wireless device to the child device of the wireless device and the second channel allocation is from the parent device of the wireless device to the wireless device. ### Claim 42 (depends on 30) The apparatus of claim 30, wherein the one or more processors are configured to cause the wireless device to transmit the set of rules to apply when the channel allocation is punctured. ### Claim 43 (depends on 30) The apparatus of claim 30, wherein the one or more processors are configured to cause the wireless device to receive the set of rules to apply when the channel allocation is punctured. ### Claim 44 (depends on 30) The apparatus of claim 30, wherein the one or more processors are configured to cause the wireless device to use the one or more of the at least one modified resource allocation or the modified grant for the communication in response to the determination that the first channel allocation will be punctured based on the overlap of the first channel allocation with the guard symbol. ### Claim 45 (depends on 30) The apparatus of claim 30, wherein the one or more processors are configured to cause the wireless device to use the one or more of the at least one modified resource allocation or the modified grant for the communication in response to the determination that the first channel allocation will be punctured based on the overlap of the first channel allocation with the second channel allocation. ### Claim 46 A non-transitory computer-readable storage medium storing computer executable code at a wireless device, the code when executed by one or more processors causes the wireless device to: transmit or receive a set of rules to apply when a channel allocation is punctured due to overlapping of one or more resources, wherein the set of rules includes use of one or more of one modified resource allocation or a modified grant; determine a first channel allocation will be punctured based on an overlap of the first channel allocation with at least one of a guard symbol or a second channel allocation, wherein the first channel allocation is from a parent device of the wireless device to the wireless device and the second channel allocation is from the wireless device to a child device of the wireless device, or wherein the first channel allocation is from the wireless device to the child device of the wireless device and the second channel allocation is from the parent device of the wireless device to the wireless device; and use, for the first channel allocation, one or more of the at least one modified resource allocation or the modified grant for communication, in response to a determination that the first channel allocation will be punctured and based on the set of rules. ### Claim 47 (depends on 46) The non-transitory computer-readable storage medium of claim 46, wherein to use the one modified resource allocation, the code when executed by the one or more processors causes the wireless device to: modify a location of one of a demodulation reference signal (DM-RS), an acknowledgement (ACK) resource, or a negative acknowledgment (NACK) resource to a symbol that does not overlap the guard symbol or the second channel allocation. ### Claim 48 (depends on 46) The non-transitory computer-readable storage medium of claim 46, wherein the first channel allocation is for a physical uplink shared channel (PUSCH) or a physical downlink shared channel (PDSCH) that overlaps with one of one or more guard symbols or the second channel allocation, and wherein to use the at least one modified resource allocation, the code when executed by the one or more processors causes the wireless device to: modify a redundancy version or a transport block size of the PUSCH or the PDSCH. ### Claim 49 (depends on 46) The non-transitory computer-readable storage medium of claim 46, wherein to determine the first channel allocation will be punctured based on the overlap of the first channel allocation with at least one of the guard symbol or the second channel allocation, the code when executed by the one or more processors cause the wireless device to: identify the first channel allocation overlaps with the guard symbol or the second channel allocation; and discard at least a portion of resources of the first channel allocation that overlap the guard symbol or the second channel allocation. ### Claim 50 (depends on 46) The non-transitory computer-readable storage medium of claim 46, wherein the first channel allocation is from the parent device of the wireless device to the wireless device and the second channel allocation is from the wireless device to the child device of the wireless device. ### Claim 51 (depends on 46) The non-transitory computer-readable storage medium of claim 46, wherein the first channel allocation is from the wireless device to the child device of the wireless device and the second channel allocation is from the parent device of the wireless device to the wireless device. ### Claim 52 (depends on 46) The non-transitory computer-readable storage medium of claim 46, wherein the code, when executed by the one or more processors, causes the wireless device to transmit the set of rules to apply when the channel allocation is punctured. ### Claim 53 (depends on 46) The non-transitory computer-readable storage medium of claim 46, wherein the code, when executed by the one or more processors, causes the wireless device to receive the set of rules to apply when the channel allocation is punctured. ### Claim 54 (depends on 46) The non-transitory computer-readable storage medium of claim 46, wherein the code, when executed by the one or more processors, causes the wireless device to use the one or more of the at least one modified resource allocation or the modified grant for the communication in response to the determination that the first channel allocation will be punctured based on the overlap of the first channel allocation with the guard symbol. ### Claim 55 (depends on 46) The non-transitory computer-readable storage medium of claim 46, wherein the code, when executed by the one or more processors, causes the wireless device to use the one or more of the at least one modified resource allocation or the modified grant for the communication in response to the determination that the first channel allocation will be punctured based on the overlap of the first channel allocation with the second channel allocation. ### Claim 56 (depends on 46) The non-transitory computer-readable storage medium of claim 46, wherein the first channel allocation is based on a semi-static allocation or a previous dynamic allocation from the parent device and the second channel allocation is for the child device, and wherein the code, when executed by the one or more processors, causes the wireless device to: receive the modified grant from a parent node that replaces the first channel allocation based on the overlap, or transmit the modified grant to the child device that replaces the second channel allocation based on the overlap.