# US 12,604,262 B2 · Cell activation based on received indication > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,604,262 B2 - Document ID: US12604262B2 - Status: Granted - Kind: B2 - Application number: 17/990,606 - Filed: 2022-11-18 - Published: 2024-05-23 - Granted: 2026-04-14 - Earliest claimed: 2022-11-18 - Assignees: QUALCOMM Incorporated - Applicants: QUALCOMM Incorporated - Inventors: Naeem Akl; Navid Abedini; Karl Georg Hampel; Junyi Li; Tao Luo - Web page: https://patentgrep.com/patent/US12604262B2 ## CPC - H04W 48/16: Discovering, processing access restriction or access information - H04W 48/20: Selecting an access point - H04B 17/309: Measuring or estimating channel quality parameters - H04W 48/08: Access restriction or access information delivery, e.g. discovery data delivery (signalling during connection H04W76/00) - H04W 74/0833: Random access procedures, e.g. with 4-step access - H04W 88/085: {Access point devices with remote components} - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) - H04B: TRANSMISSION ## Abstract Aspects relate to cell activation. A first apparatus (e.g., a distributed unit) may obtain a first indication that is indicative of whether a user equipment is present within a coverage of a cell served by the first apparatus. The first apparatus may then output a second indication based on the first indication to a second apparatus (e.g., a central unit). In some aspects, the outputting of the second indication may be based on the first indication indicating that the user equipment is present within the coverage of the cell. ## Claims ### Claim 1 A first network entity, comprising: one or more transceivers; and a processing system comprising one or more memories including instructions and one or more processors configured to execute the instructions to cause the first network entity to: receive, from a second network entity and via the one or more transceivers, a message indicating that a first cell served by the first network entity is to be deactivated; deactivate the first cell after the message is received, wherein the deactivation of the first cell configures the first cell to cease transmissions of any broadcast signaling; receive, via the one or more transceivers and while the deactivated first cell is configured to cease transmissions of any broadcast signaling, a first indication that is indicative of whether a user equipment is present within a coverage area of the deactivated first cell, wherein a connection associated with the user equipment is not established via the first network entity when the first indication is received; and transmit, via the one or more transceivers and based on the first indication indicating that the user equipment is present within the coverage area of the deactivated first cell, a second indication associated with activation of the deactivated first cell. ### Claim 2 (depends on 1) The first network entity of claim 1, wherein: the processing system is further configured to execute the instructions to cause the first network entity to determine, based on the first indication, that the user equipment is present within the coverage area of the deactivated first cell; and the transmission of the second indication is further based on the determination that the user equipment is present within the coverage area of the deactivated first cell. ### Claim 3 (depends on 1) The first network entity of claim 1, wherein the first indication comprises a obtained received, via the one or more transceivers, from the user equipment. ### Claim 4 (depends on 3) The first network entity of claim 3, wherein the signal comprises a random access channel (RACH) preamble. ### Claim 5 (depends on 3) The first network entity of claim 3, wherein the signal comprises connected mode signaling. ### Claim 6 (depends on 1) The first network entity of claim 1, wherein the first indication comprises a signal transmitted to the user equipment. ### Claim 7 (depends on 1) The first network entity of claim 1, wherein the first indication comprises a signal received, via the one or more transceivers, from a network entity. ### Claim 8 (depends on 1) The first network entity of claim 1, wherein, to receive the first indication, the processing system is further configured to execute the instructions to cause the first network entity to at least one of: sense the user equipment; or use a sensor to sense the user equipment. ### Claim 9 (depends on 1) The first network entity of claim 1, wherein the second indication indicates that the first network entity activated the deactivated first cell. ### Claim 10 (depends on 1) The first network entity of claim 1, wherein the second indication comprises a request to activate the deactivated first cell. ### Claim 11 (depends on 10) The first network entity of claim 10, wherein the processing system is further configured to execute the instructions to cause the first network entity to: receive, from the second network entity and via the one or more transceivers, a response to the second indication, the response instructing the first network entity to activate the deactivated first cell. ### Claim 12 (depends on 1) The first network entity of claim 1, wherein the second indication comprises a reference signal of the first cell. ### Claim 13 (depends on 12) The first network entity of claim 12, wherein the reference signal comprises a synchronization signal block (SSB) or a channel state information-reference signal (CSI-RS). ### Claim 14 (depends on 1) The first network entity of claim 1, wherein the transmission of the second indication is further based on a condition indicated by a measurement associated with the first indication. ### Claim 15 (depends on 14) The first network entity of claim 14, wherein the measurement associated with the first indication comprises a reference signal received power (RSRP) measurement. ### Claim 16 (depends on 14) The first network entity of claim 14, wherein the measurement associated with the first indication comprises a received signal strength indication (RSSI) measurement. ### Claim 17 (depends on 14) The first network entity of claim 14, wherein the measurement associated with the first indication comprises at least one of: a signal-to-noise ratio (SNR) measurement, a signal-to-interference-and-noise ratio (SINR) measurement, a channel quality indication (CQI) measurement, a precoding matric indicator (PMI) measurement, a layer indicator (LI) measurement, a rank indicator (RI) measurement, or a reference signal received quality (RSRQ) measurement. ### Claim 18 (depends on 14) The first network entity of claim 14, wherein the processing system is further configured to execute the instructions to cause the first network entity to: receive, via the one or more transceivers, an indication of the condition from the second network entity. ### Claim 19 (depends on 1) The first network entity of claim 1, wherein the processing system is further configured to execute the instructions to cause the first network entity to: receive, from the second network entity and via the one or more transceivers, information associated with reception of the first indication. ### Claim 20 (depends on 19) The first network entity of claim 19, wherein the information indicates at least one of: a center frequency at which the first indication is to be received; or a bandwidth over which the first indication is to be received. ### Claim 21 (depends on 19) The first network entity of claim 19, wherein the information indicates a time interval during which the first indication is to be received. ### Claim 22 (depends on 19) The first network entity of claim 19, wherein the information indicates a spatial direction at which the first indication is to be received. ### Claim 23 (depends on 19) The first network entity of claim 19, wherein the information indicates a coverage area within which the first indication is to be received. ### Claim 24 (depends on 19) The first network entity of claim 19, wherein: the first indication comprises a random access channel (RACH) preamble; and the information comprises a RACH resource on which the first indication is to be received. ### Claim 25 (depends on 1) The first network entity of claim 1, wherein the first indication comprises: a random access channel (RACH) preamble; and a RACH configuration associated with the first indication. ### Claim 26 A method for communication by a first wireless node, the method comprising: receiving, from a second wireless node, a message indicating that a first cell served by the first wireless node is to be deactivated; deactivating the first cell after receiving the message, wherein the deactivating the first cell configures the first cell to cease transmissions of any broadcast signaling; receiving, while the deactivated first cell is configured to cease transmissions of any broadcast signaling, a first indication that is indicative of whether a user equipment is present within a coverage area of the deactivated first cell, wherein a connection associated with the user equipment is not established via the first wireless node when the first indication is received; and transmitting a second indication associated with activation of the deactivated first cell, the transmitting the second indication being based on the first indication indicating that the user equipment is present within the coverage area of the deactivated first cell. ### Claim 27 (depends on 1) The first network entity of claim 1, wherein the message is associated with energy conservation-based cell deactivation.