# US 12,192,895 B2 · Method and system for implementing mini-slot scheduling for all UEs that only are enabled to lower power usage > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,192,895 B2 - Document ID: US12192895B2 - Status: Granted - Kind: B2 - Application number: 17/939,381 - Filed: 2022-09-07 - Published: 2023-01-05 - Granted: 2025-01-07 - Earliest claimed: 2020-07-31 - Assignees: DISH Wireless L.L.C. - Applicants: DISH Wireless L.L.C. - Inventors: Dhaval Mehta; Amit Pathania - Web page: https://patentgrep.com/patent/US12192895B2 ## CPC - H04W 52/0209: {in terminal devices} - H04W 72/0446: Resources in time domain, e.g. slots or frames - H04W 72/12: Wireless traffic scheduling - H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal - 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 Systems and methods are provided for adaptive mini-slot management in a network, including an element management control unit comprising a set of distribution and central units (DU/CU) to monitor power and channel traffic at a plurality of cell sites in the network; a scheduler unit for user equipment (UE) to enable and disable a set of mini-slots in a downlink (DL) pattern and an uplink (UL) pattern including at least two concatenated patterns jointly repeated with periodicity in a slot configuration period for new radio (NR) communications by users at cell sites in the network; and in response to a request by a user, the scheduler unit reserves a number of mini-slots for use in each slot configuration period wherein a reserved slot number is responsive to at least one of a condition of an AC power outage, and reduced channel traffic based on data received by the DU/CU about the condition. ## Claims ### Claim 1 A system, comprising: an element management system (EMS) comprising a distribution unit (DU) and central unit (CU), the EMS configured to monitor data received from the DU and CU for a power outage; and a scheduler unit configured to enable and disable mini-slots in a downlink (DL) pattern and an uplink (UL) pattern comprising concatenated patterns repeated during a configuration period, wherein the scheduler unit disables a portion of the mini-slots and selects a reduced number of the mini-slots for use in the configuration period in response to the EMS detecting the power outage. ### Claim 2 (depends on 1) The system of claim 1, wherein the scheduler unit initializes a set of mini-slots for use when scheduling user equipment (UE) by mini-slot assignments to dynamically inform the UE of the UL transmit pattern and the DL receive pattern for the configuration period. ### Claim 3 (depends on 1) The system of claim 1, wherein the scheduler unit implements a time-domain based schedule to reduce power consumption during the configuration period. ### Claim 4 (depends on 1) The system of claim 1, wherein the scheduler unit uses orthogonal frequency-division multiplexing (OFDM) symbols to enable a dynamic set of mini-slots to send and receive data requests in scheduled operations. ### Claim 5 (depends on 4) The system of claim 4, wherein the scheduler unit allocates orthogonal frequency-division multiplexing (OFDM) symbols to enable and disable a number of mini-slots in the configuration period. ### Claim 6 (depends on 5) The system of claim 5, wherein a mini-slot length for during the configuration period comprises 2, 4, or 8 OFDM symbols. ### Claim 7 (depends on 1) The system of claim 1, wherein the scheduler unit enables UL transmissions and DL transmissions over variable periods for a mini-slot based on a set of frequencies, and wherein a mini-slot corresponds to a portion of a slot. ### Claim 8 (depends on 7) The system of claim 7, wherein the scheduler unit maintains a mini-slot in a disabled state in response to a frequency of the mini-slot being outside an active bandwidth of the DL transmissions. ### Claim 9 (depends on 1) The system of claim 1, wherein the scheduling unit is configured to interrupt an ongoing transmission to enable immediate transmission of data at low latency. ### Claim 10 A method comprising: configuring an element management system (EMS) for monitoring power and channel traffic at a cell site using a distribution unit (DU) and a central unit (CU); enabling, by a scheduler unit, mini-slots in a downlink (DL) pattern or an uplink (UL) pattern for adaptive mini-slot allocation comprising concatenated patterns repeated during a first configuration period; disabling, by the scheduler unit, a portion of the mini-slots during a second configuration period in response to detecting a condition, the condition comprising a power outage; and reserving, by the scheduler unit, a reduced number of the mini-slots for use in the second configuration period, wherein the mini-slots are reserved in response to the condition. ### Claim 11 (depends on 10) The method of claim 10, further comprising initializing, by the scheduler unit, a set of the mini-slots in response to the EMS detecting the power outage or the reduction in channel traffic. ### Claim 12 (depends on 10) The method of claim 10, further comprising changing, by the scheduler unit, a frequency of the configuration period by applying a plurality of time-domain scheduling periods wherein a predetermined number of mini-slots are enabled in each time-domain scheduling period in the plurality of time-domain scheduling periods. ### Claim 13 (depends on 10) The method of claim 10, further comprising enabling, by the scheduler unit, orthogonal frequency-division multiplexing (OFDM) symbols for enabling mini-slots. ### Claim 14 (depends on 13) The method of claim 13, further comprising enabling, by the scheduler unit using the OFDM symbols, a mini-slot during the configuration period in response to decreased data transmission at the cell site. ### Claim 15 (depends on 13) The method of claim 13, wherein a length of the configuration period comprises 2, 4, or 8 OFDM symbols. ### Claim 16 (depends on 10) The method of claim 10, further comprising enabling, by the scheduler unit, UL transmissions and DL transmissions over variable periods for the mini-slots based on a set of frequencies. ### Claim 17 (depends on 16) The method of claim 16, further comprising maintaining, by the scheduler unit, a mini-slot in a disabled state in response to a frequency of the mini-slot being outside an active bandwidth of the DL transmissions. ### Claim 18 (depends on 10) The method of claim 10, further comprising interrupting, by the scheduler unit, a first slot-based transmission before completion to enable a second slot-based transmission. ### Claim 19 A computer program product comprising instructions stored in a non-transitory, computer-readable medium that upon execution cause a processor to perform operations, the operations comprising: configuring an element management system (EMS) for monitoring power and channel traffic at a cell site using a distribution unit (DU) and a central unit (CU); enabling, by a scheduler unit, mini-slots in a downlink (DL) pattern or an uplink (UL) pattern for adaptive mini-slot allocation comprising concatenated patterns repeated during a configuration period; disabling, by the scheduler unit, a portion of the mini-slots in response to the EMS detecting a power outage; and reserving, by the scheduler unit, a reduced number of the mini-slots for use in the configuration period, wherein the reduced number of the mini-slots are reserved in response to the power outage. ### Claim 20 (depends on 19) The computer program product of claim 19, wherein the operations further comprise enabling, by the processor, orthogonal frequency-division multiplexing (OFDM) symbols for enabling mini-slots.