# US 11,910,392 B2 · Request of no-downlink-scheduling gaps and sounding reference signal (SRS) positioning transmission for prioritized and efficient positioning reference signal (PRS) processing > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,910,392 B2 - Document ID: US11910392B2 - Status: Granted - Kind: B2 - Application number: 17/374,580 - Filed: 2021-07-13 - Published: 2022-02-03 - Granted: 2024-02-20 - Earliest claimed: 2020-07-30 - Assignees: QUALCOMM Incorporated - Applicants: QUALCOMM Incorporated - Inventors: Alexandros Manolakos; Mukesh Kumar; Guttorm Ringstad Opshaug; Srinivas Yerramalli - Web page: https://patentgrep.com/patent/US11910392B2 ## CPC - H04L 5/001: {the frequencies being arranged in component carriers} - H04W 72/21: in the uplink direction of a wireless link, i.e. towards the network - 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 5/0051: {of dedicated pilots, i.e. pilots destined for a single user or terminal} - H04L 5/0094: {Indication of how sub-channels of the path are allocated} - H04W 24/08: Testing, {supervising or monitoring} using real traffic - H04W 48/14: using user query {or user detection} - H04W 72/0453: Resources in frequency domain, e.g. a carrier in FDMA - H04L 5/0044: {Allocation of payload; Allocation of data channels, e.g. PDSCH or PUSCH} - H04L 5/005: {of common pilots, i.e. pilots destined for multiple users or terminals} - H04L 5/0053: {Allocation of signalling, i.e. of overhead other than pilot signals} - H04L 5/0055: {Physical resource allocation for ACK/NACK (for physical mapping arrangements in ARQ protocols H04L1/1861)} - H04L 5/0057: {Physical resource allocation for CQI} - 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 Disclosed are various techniques for wireless communication. In an aspect, a user equipment (UE) transmits, to a serving base station, in one or more active bandwidth parts (BWPs) of the UE, a request for a no-downlink-scheduling gap, the request including at least time-domain parameters related to scheduling the no-downlink-scheduling gap, receives, from a neighboring base station, in the one or more active BWPs, a downlink positioning reference signal (DL-PRS) during the no-downlink-scheduling gap, and transmits, in the one or more active BWPs, an uplink positioning reference signal (UL-PRS) during the no-downlink-scheduling gap in response to reception of the DL-PRS. ## Claims ### Claim 1 A method of wireless communication performed by a user equipment (UE), comprising: determining a configuration of a no-downlink-scheduling gap for one or more bandwidth parts (BWPs) of the UE, the no-downlink-scheduling gap comprising at least time-domain parameters related to scheduling the no-downlink-scheduling gap; and receiving, from a neighboring base station, in the one or more BWPs, a downlink positioning reference signal (DL-PRS) during the no-downlink-scheduling gap, wherein: the UE does not receive any downlink transmissions from a serving base station during the no-downlink-scheduling gap inside the one or more BWPs, or the UE ignores any downlink transmissions from the serving base station during the no-downlink-scheduling gap in the one or more BWPs, or the UE prioritizes DL-PRS processing over any other downlink transmissions from the serving base station during the no-downlink-scheduling gap in the one or more BWPs, and transmitting, in the one or more BWPs, an uplink positioning reference signal during the no-downlink-scheduling gap. ### Claim 2 (depends on 1) The method of claim 1, wherein the uplink positioning reference signal comprises a sounding reference signal (SRS) for positioning, an SRS configured at least for communication purposes, a demodulation reference signal (DMRS), a physical uplink shared channel (PUSCH), or a physical uplink control channel (PUCCH). ### Claim 3 (depends on 1) The method of claim 1, wherein determining the configuration of the no-downlink-scheduling gap comprises: transmitting, to the serving base station, in the one or more BWPs, a request for the no-downlink-scheduling gap, the request including at least the time-domain parameters related to scheduling the no-downlink-scheduling gap; and receiving, from the serving base station, the configuration of the no-downlink-scheduling gap. ### Claim 4 (depends on 1) The method of claim 1, wherein the request is included in a medium access control control element (MAC-CE). ### Claim 5 (depends on 1) The method of claim 1, further comprising: remaining in the one or more BWPs for an entirety of the no-downlink-scheduling gap. ### Claim 6 (depends on 1) The method of claim 1, wherein the UE is not expected to perform radio resource management (RRM) measurements in the one or more BWPs during the no-downlink-scheduling gap. ### Claim 7 (depends on 1) The method of claim 1, further comprising: performing RRM measurements in the one or more BWPs during the no-downlink-scheduling gap based on capabilities of the UE. ### Claim 8 (depends on 1) The method of claim 1, wherein the time-domain parameters comprise a length and an offset of the no-downlink-scheduling gap. ### Claim 9 (depends on 8) The method of claim 8, wherein the length and the offset of the no-downlink-scheduling gap are each specified as a number of symbols, groups of symbols, or slots. ### Claim 10 (depends on 8) The method of claim 8, wherein the offset of the no-downlink-scheduling gap is defined with respect to a frame boundary, a subframe boundary, a slot boundary, a transmission time of the request, or any combination thereof. ### Claim 11 (depends on 1) The method of claim 1, wherein the no-downlink-scheduling gap is associated with at least one or more component carriers, frequency band indexes, or BWP indexes. ### Claim 12 (depends on 1) The method of claim 1, wherein the no-downlink-scheduling gap is associated with all component carriers, all frequency bands within at least Long-Term Evolution (LTE) or New Radio (NR), or all BWPs across all active component carriers of the UE. ### Claim 13 (depends on 1) The method of claim 1, further comprising: requesting the no-downlink-scheduling gap based on a DL-PRS configuration for the neighboring base station received from a location server. ### Claim 14 (depends on 1) The method of claim 1, further comprising: measuring channel state information reference signal (CSI-RS) resources before the no-downlink-scheduling gap; ceasing any CSI-related processing of the CSI-RS resources during the no-downlink-scheduling gap; and dropping a CSI report associated with the ceased CSI-related processing of the CSI-RS resources. ### Claim 15 (depends on 1) The method of claim 1, further comprising: measuring CSI-RS resources before the no-downlink-scheduling gap; and transmitting, to the serving base station, a CSI report associated with the CSI-RS resources at least based on an extended CSI processing timeline, wherein the extended CSI processing timeline is a length of a CSI processing timeline extended by a length of the no-downlink-scheduling gap. ### Claim 16 (depends on 1) The method of claim 1, further comprising: receiving a physical downlink shared channel (PDSCH) before the no-downlink-scheduling gap; ceasing the PDSCH processing during the no-downlink-scheduling gap; and transmitting, to the serving base station, a negative acknowledgment (NACK) for the PDSCH. ### Claim 17 (depends on 1) The method of claim 1, further comprising: receiving a PDSCH before the no-downlink-scheduling gap; and transmitting, to the serving base station, an acknowledgment associated with the PDSCH at least based on an extended PDSCH processing timeline, wherein the extended PDSCH processing timeline is a length of a PDSCH processing timeline extended by a length of the no-downlink-scheduling gap. ### Claim 18 A method of wireless communication performed by a base station, comprising: receiving a request for a no-downlink-scheduling gap for a user equipment (UE) associated with one or more active bandwidth parts (BWPs), the request including at least time-domain parameters of the no-downlink-scheduling gap, wherein: the request comprises a request for a measurement gap, the time-domain parameters comprise a length and an offset of the no-downlink-scheduling gap, the length and the offset of the no-downlink-scheduling gap comprises a length and an offset of the measurement gap, and the request includes a flag indicating that the UE is permitted to transmit uplink positioning reference signals (UL-PRS) during the measurement gap; and refraining from transmitting to the UE during the no-downlink-scheduling gap. ### Claim 19 (depends on 18) The method of claim 18, wherein the request is included in a medium access control control element (MAC-CE). ### Claim 20 (depends on 18) The method of claim 18, wherein the time-domain parameters comprise a length and an offset of the no-downlink-scheduling gap. ### Claim 21 (depends on 20) The method of claim 20, wherein the length and the offset of the no-downlink-scheduling gap are each specified as a number of symbols, groups of symbols, or slots. ### Claim 22 (depends on 20) The method of claim 20, wherein the offset of the no-downlink-scheduling gap is defined with respect to a frame boundary, a subframe boundary, a slot boundary, a transmission time of the request, or any combination thereof. ### Claim 23 (depends on 18) The method of claim 18, wherein the no-downlink-scheduling gap is associated with at least one or more component carriers, frequency band indexes, or BWP indexes. ### Claim 24 (depends on 18) The method of claim 18, wherein the no-downlink-scheduling gap is associated with all component carriers, all frequency bands, or all BWPs across all active component carriers of the UE. ### Claim 25 (depends on 18) The method of claim 18, further comprising: transmitting, to the UE, before the no-downlink-scheduling gap, channel state information reference signal (CSI-RS) resources for a CSI report; and receiving the CSI report from the UE after the no-downlink-scheduling gap, a CSI processing timeline within which the UE is permitted to transmit the CSI report having been extended by a length of the no-downlink-scheduling gap. ### Claim 26 (depends on 18) The method of claim 18, further comprising: transmitting, to the UE, before the no-downlink-scheduling gap, a physical downlink shared channel (PDSCH); and receiving, from the UE, an acknowledgment for the PDSCH after the no-downlink-scheduling gap, a PDSCH processing timeline in which the UE is permitted to transmit the acknowledgment having been extended by a length of the no-downlink-scheduling gap. ### Claim 27 A user equipment (UE), comprising: a memory; at least one transceiver; and at least one processor communicatively coupled to the memory and the at least one transceiver, the at least one processor configured to: determine a configuration of a no-downlink-scheduling gap for one or more bandwidth parts (BWPs) of the UE, the no-downlink-scheduling gap comprising at least time-domain parameters related to scheduling the no-downlink-scheduling gap; and receive, via the at least one transceiver, from a neighboring base station, in the one or more BWPs, a downlink positioning reference signal (DL-PRS) during the no-downlink-scheduling gap, wherein: the UE does not receive any downlink transmissions from a serving base station during the no-downlink-scheduling gap inside the one or more BWPs, or the UE ignores any downlink transmissions from the serving base station during the no-downlink-scheduling gap in the one or more BWPs, or the UE prioritizes DL-PRS processing over any other downlink transmissions from the serving base station during the no-downlink-scheduling gap in the one or more BWPs, and transmit, via the at least one transceiver, in the one or more BWPs, an uplink positioning reference signal during the no-downlink-scheduling gap. ### Claim 28 A base station, comprising: a memory; at least one transceiver; and at least one processor communicatively coupled to the memory and the at least one transceiver, the at least one processor configured to: receive a request for a no-downlink-scheduling gap for a user equipment (UE) associated with one or more active bandwidth parts (BWPs), the request including at least time-domain parameters of the no-downlink-scheduling gap, wherein: the request comprises a request for a measurement gap, the time-domain parameters comprise a length and an offset of the no-downlink-scheduling gap, the length and the offset of the no-downlink-scheduling gap comprises a length and an offset of the measurement gap, and the request includes a flag indicating that the UE is permitted to transmit uplink positioning reference signals (UL-PRS) during the measurement gap; and refrain from transmitting to the UE during the no-downlink-scheduling gap.