# US 12,764,667 B2 · Uplink transmission using low power radio > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,764,667 B2 - Document ID: US12764667B2 - Status: Granted - Kind: B2 - Application number: 18/660,199 - Filed: 2024-05-09 - Published: 2025-11-13 - Granted: 2026-10-13 - Earliest claimed: 2024-05-09 - Assignees: Lenovo (Singapore) Pte. Ltd. - Applicants: Lenovo (Singapore) Pte. Ltd. - Inventors: Shwetha Sreejith; Joachim Löhr; Prateek Basu Mallick; Karthikeyan Ganesan - Web page: https://patentgrep.com/patent/US12764667B2 ## CPC - H04W 52/0274: {by switching on or off the equipment or parts thereof} - H04W 28/0278: {using buffer status reports (dynamic wireless traffic scheduling definition H04W72/12)} - H04W 52/0235: {where the received signal is a power saving command} - H04W 72/21: in the uplink direction of a wireless link, i.e. towards the network - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract Various aspects of the present disclosure relate to uplink transmission using a low power radio. An apparatus, such as a UE, receives uplink (UL) data into a medium access control (MAC) hybrid automatic repeat request (HARQ) buffer. The UE wakes up a low power radio of the UE based on the uplink data received in the MAC HARQ buffer. The UE initiates a buffer status report and/or a scheduling request, and the UE transmits, to a network equipment (NE), the buffer status report, the scheduling request, or both the buffer status report and the scheduling request. ## Claims ### Claim 1 A user equipment (UE) for wireless communication, comprising: at least one memory; and at least one processor coupled with the at least one memory and configured to cause the UE to: receive uplink (UL) data into a medium access control (MAC) hybrid automatic repeat request (HARQ) buffer; wake up a low power radio of the UE based at least in part on the UL data received in the MAC HARQ buffer; initiate at least one of a buffer status report or a scheduling request; and transmit, to a network equipment (NE), at least one of the buffer status report or the scheduling request. ### Claim 2 (depends on 1) The UE of claim 1, wherein a logical channel (LCH) via which the UL data is received is configured with a radio mode. ### Claim 3 (depends on 2) The UE of claim 2, wherein the at least one processor is configured to cause the UE to receive, from the NE, a radio resource control (RRC) message that indicates a configuration of the radio mode. ### Claim 4 (depends on 3) The UE of claim 3, wherein the at least one processor is configured to cause the UE to receive, from the NE, a LogicalChannelConfig information element (IE) that includes a parameter to configure the radio mode. ### Claim 5 (depends on 4) The UE of claim 4, wherein the parameter is an enumerated value indicating the low power radio, a main radio, or both the low power radio and the main radio. ### Claim 6 (depends on 4) The UE of claim 4, wherein the parameter is a Boolean value of true indicating the low power radio, or a Boolean value of false indicating at least one of a main radio, or both the low power radio and the main radio. ### Claim 7 (depends on 6) The UE of claim 6, wherein the logical channel (LCH) via which the UL data is received is configured with the Boolean value of false, and the at least one processor is configured to cause the UE to wake up the main radio for UL transmission of the UL data. ### Claim 8 (depends on 1) The UE of claim 1, wherein a logical channel (LCH) with a high priority is configurable with a high bucket size value that is a product of a prioritized bit rate and a bucket size duration. ### Claim 9 (depends on 8) The UE of claim 8, wherein the at least one processor is configured to cause the UE to: receive an UL grant; and allocate the UL grant to the LCH based on LCH priority and if a radio mode configured for the LCH is at least one of the low power radio, or both the low power radio and a main radio. ### Claim 10 (depends on 1) The UE of claim 1, wherein the at least one processor is configured to cause the UE to transmit the scheduling request as one of a physical uplink control channel (PUCCH) message with an indication that the low power radio initiated the scheduling request, or as the PUCCH message dedicated for a logical channel (LCH) configured for low power radio mode. ### Claim 11 (depends on 1) The UE of claim 1, wherein the at least one processor is configured to cause the UE to transmit the buffer status report that includes an indication that the UL data in a logical channel group (LCG) is one of only associated with the low power radio, or associated with a main radio, or both the low power radio and the main radio. ### Claim 12 A processor for wireless communication, comprising: at least one controller coupled with at least one memory and configured to cause the processor to: receive uplink (UL) data into a medium access control (MAC) hybrid automatic repeat request (HARQ) buffer; wake up a low power radio based at least in part on the UL data received in the MAC HARQ buffer; initiate at least one of a buffer status report or a scheduling request; and transmit, to a network equipment (NE), at least one of the buffer status report or the scheduling request. ### Claim 13 A method performed by a user equipment (UE), the method comprising: receiving uplink (UL) data into a medium access control (MAC) hybrid automatic repeat request (HARQ) buffer; waking up a low power radio of the UE based at least in part on the UL data received in the MAC HARQ buffer; initiating at least one of a buffer status report or a scheduling request; and transmitting, to a network equipment (NE), at least one of the buffer status report or the scheduling request. ### Claim 14 (depends on 13) The method of claim 13, further comprising receiving, from the NE, a radio resource control (RRC) message that indicates a configuration of a radio mode associated with a logical channel (LCH) via which the UL data is received. ### Claim 15 (depends on 13) The method of claim 13, further comprising receiving, from the NE, a LogicalChannelConfig information element (IE) that includes a parameter to configure a radio mode associated with a logical channel (LCH) via which the UL data is received. ### Claim 16 A network equipment (NE) for wireless communication, comprising: at least one memory; and at least one processor coupled with the at least one memory and configured to cause the NE to: receive, from a user equipment (UE), at least one of a buffer status report or a scheduling request; and transmit, to the UE, a configuration of uplink (UL) resources via which the UE transmits, with a low power radio, UL data from a medium access control (MAC) hybrid automatic repeat request (HARQ) buffer of the UE. ### Claim 17 (depends on 16) The NE of claim 16, wherein the at least one processor is configured to cause the NE to transmit, to the UE, a radio resource control (RRC) message that indicates a radio mode configuration of a radio mode that is associated with a logical channel (LCH) for the UL data. ### Claim 18 (depends on 16) The NE of claim 16, wherein the at least one processor is configured to cause the NE to transmit, to the UE, a LogicalChannelConfig information element (IE) that includes a parameter to configure a radio mode that is associated with a logical channel (LCH) for the UL data. ### Claim 19 (depends on 18) The NE of claim 18, wherein the parameter is an enumerated value indicating the low power radio of the UE, a main radio of the UE, or both the low power radio and the main radio. ### Claim 20 (depends on 18) The NE of claim 18, wherein the parameter is a Boolean value of true indicating the low power radio of the UE, or a Boolean value of false indicating at least one of a main radio of the UE, or both the low power radio and the main radio.