# US 2020/0404656 A1 · Self-Contained Slot and Slot Duration Configuration in NR Systems > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2020/0404656 A1 - Document ID: US20200404656A1 - Status: Published application - Kind: A1 - Application number: 17/008,319 - Filed: 2020-08-31 - Published: 2020-12-24 - Earliest claimed: 2018-03-30 - Assignees: Apple Inc. - Applicants: Apple Inc. - Inventors: Zhu Ji; Yang Li; Yuchul Kim; Johnson O. Sebeni; Sami M. Almalfouh; Wei Zeng; Dawei Zhang - Web page: https://patentgrep.com/patent/US20200404656A1 ## CPC - H04W 72/0446: Resources in time domain, e.g. slots or frames - H04W 76/10: Connection setup - H04W 72/21: in the uplink direction of a wireless link, i.e. towards the network - H04W 84/042: {Public Land Mobile systems, e.g. cellular systems} - Y02D 30/70: in wireless communication networks - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) - Y02D: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE ## Abstract Apparatuses, systems, and methods to dynamically indicate preference for self-contained slots and slot duration by a user equipment device (UE) in communication with a base station (e.g., a gNB) using a 5G NR radio access technology. A UE may determine to send an indication to a gNB indicating a preference for self-contained slots and slot duration for downlink and/or uplink communications utilizing one or more of the physical downlink control channel (PDCCH), the physical downlink shared channel (PDSCH), and/or acknowledgement messaging (ACK/NACK) for downlink communications, and utilizing one or more of the physical uplink control channel (PUCCH), the PDCCH, and/or the physical uplink shared channel (PUSCH) for uplink communications. The configuration of self-contained slots and slot duration for uplink and/or downlink may be based on one or more of average packet size, average packet rate, traffic type and UE processing capabilities. ## Claims ### Claim 1 A method, comprising: by a user equipment device (UE), establishing a connection with a base station; transmitting information to the base station indicating a preference for a slot configuration for an upcoming communication between the UE and the base station, wherein the information specifies a preferred value of a K0 parameter and a preferred value of a K2 parameter, wherein the K0 parameter is used to determine a slot offset of a physical downlink shared channel (PDSCH) transmission relative to a scheduling downlink control information (DCI) for the PDSCH transmission, and wherein the K2 parameter is used to determine a slot offset of a physical uplink shared channel (PUSCH) transmission relative to a scheduling DCI for the PUSCH transmission; and communicating with the base station according to a slot configuration based at least in part in response to transmitting the information. ### Claim 2 (depends on 1) The method of claim 1, wherein communicating with the base station according to the slot configuration comprises one or both of transmitting by the UE the PUSCH transmission to the base station and receiving the PDSCH transmission from the base station. ### Claim 3 (depends on 1) The method of claim 1, wherein the information further specifies the value of an L parameter that indicates a preferred duration of the PUSCH transmission. ### Claim 4 (depends on 1) The method of claim 1, wherein the information further specifies the value of an L parameter that indicates a preferred duration of the PDSCH transmission. ### Claim 5 (depends on 1) The method of claim 1, wherein a preferred duration of the slot is determined by the UE based at least in part on an average packet size of downlink messages received from the base station. ### Claim 6 (depends on 1) The method of claim 1, further comprising: determining that an average packet size or an average arrival rate of downlink messages received from the base station is below a predetermined threshold, wherein transmitting the information to the base station is performed at least in part in response to determining that the average packet size or the average arrival rate of downlink messages received from the base station is below the predetermined threshold. ### Claim 7 (depends on 1) The method of claim 1, wherein the information further specifies one or more of: a slot format; a value of μDL parameter; and a value of a μUL parameter. ### Claim 8 (depends on 1) The method of claim 1, further comprising: determining a traffic type associated with the upcoming communication between the UE and the base station, wherein the information is transmitted based at least in part on the traffic type associated with the upcoming communication between the UE and the base station. ### Claim 9 (depends on 8) The method of claim 8, wherein the traffic type comprises one of: email; internet protocol (IP) text messaging; voice-over long term evolution (VoLTE) communications; and ultra-reliable low latency communications (URLLC). ### Claim 10 (depends on 1) The method of claim 1, the method further comprising: receiving a blanking downlink control information (bDCI) indication from the base station indicating that the UE is not expected to monitor for control messages for a first period of time. ### Claim 11 An apparatus, comprising: a processor configured to cause a user equipment device (UE) to: establish a connection with a base station; transmit information to the base station indicating a preference for a slot configuration for an upcoming communication between the UE and the base station, wherein the information specifies a preferred value of a K0 parameter and a preferred value of a K2 parameter, wherein the K0 parameter is used to determine a slot offset of a physical downlink shared channel (PDSCH) transmission relative to a scheduling downlink control information (DCI) for the PDSCH transmission, wherein the K2 parameter is used to determine a slot offset of a physical uplink shared channel (PUSCH) transmission relative to a scheduling DCI for the PUSCH transmission; and communicate with the base station according to a slot configuration based at least in part in response to transmitting the information. ### Claim 12 (depends on 1) The apparatus of claim 1, wherein communicating with the base station according to the slot configuration comprises one or both of transmitting by the UE the PUSCH transmission to the base station and receiving the PDSCH transmission from the base station. ### Claim 13 (depends on 1) The apparatus of claim 1, wherein the information further specifies the value of an L parameter that indicates a preferred duration of the PUSCH transmission. ### Claim 14 (depends on 1) The apparatus of claim 1, wherein the information further specifies the value of an L parameter that indicates a preferred duration of the PDSCH transmission. ### Claim 15 (depends on 1) The apparatus of claim 1, wherein a preferred duration of the slot is determined by the UE based at least in part on an average packet size of downlink messages received from the base station. ### Claim 16 (depends on 1) The apparatus of claim 1, wherein the processor is further configured to cause the UE to: determine that an average packet size or an average arrival rate of downlink messages received from the base station is below a predetermined threshold, wherein transmitting the information to the base station is performed at least in part in response to determining that the average packet size or the average arrival rate of downlink messages received from the base station is below the predetermined threshold. ### Claim 17 A user equipment device (UE), comprising: an antenna; a radio coupled to the antenna; and a processor including circuitry and coupled to the radio; wherein the UE is configured to: establish a connection with a base station; transmit information to the base station indicating a preference for a slot configuration for an upcoming communication between the UE and the base station, wherein the information specifies a preferred value of a K0 parameter and a preferred value of a K2 parameter, wherein the K0 parameter is used to determine a slot offset of a physical downlink shared channel (PDSCH) transmission relative to a scheduling downlink control information (DCI) for the PDSCH transmission, and wherein the K2 parameter is used to determine a slot offset of a physical uplink shared channel (PUSCH) transmission relative to a scheduling DCI for the PUSCH transmission; and communicate with the base station according to a slot configuration based at least in part in response to transmitting the information. ### Claim 18 (depends on 17) The UE of claim 17, wherein communicating with the base station according to the slot configuration comprises transmitting by the UE the PUSCH transmission to the base station. ### Claim 19 (depends on 17) The UE of claim 17, wherein communicating with the base station according to the slot configuration comprises receiving the PDSCH transmission from the base station. ### Claim 20 (depends on 17) The UE of claim 17, wherein the UE and the base station operate according to a 5G New Radio (NR) radio access technology.