# US 12,010,638 B2 · Sparse transmission of discovery signals for network energy saving > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,010,638 B2 - Document ID: US12010638B2 - Status: Granted - Kind: B2 - Application number: 17/362,686 - Filed: 2021-06-29 - Published: 2022-12-29 - Granted: 2024-06-11 - Earliest claimed: 2021-06-29 - Assignees: QUALCOMM Incorporated - Applicants: QUALCOMM Incorporated - Inventors: Navid Abedini; Naeem Akl; Jianghong Luo; Tao Luo; Junyi Li - Web page: https://patentgrep.com/patent/US12010638B2 ## CPC - H04W 52/0216: {using a pre-established activity schedule, e.g. traffic indication frame} - H04W 56/001: {Synchronization between nodes} - 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 5/0094: {Indication of how sub-channels of the path are allocated} - H04W 52/0235: {where the received signal is a power saving command} - H04W 88/14: Backbone network devices - 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) - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) - 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 Aspects presented herein may provide various power saving techniques and features for network nodes by configuring different power saving modes for the network nodes. Aspects presented herein may enable a network node to transmit SSBs less frequently to reduce an amount of power utilized. In one aspect, a base station configures a plurality of SSB Tx periodicities associated with a plurality of ES modes. The base station transmits an indication of the plurality of SSB Tx periodicities associated with the plurality of ES modes. The base station transmits one or more SSBs based on one of the plurality of SSB Tx periodicities associated with one of the plurality of ES modes. ## Claims ### Claim 1 An apparatus for wireless communication at a base station (BS), comprising: memory; and at least one processor coupled to the memory and configured to: configure a plurality of synchronization signal block (SSB) transmission (Tx) periodicities associated with a plurality of energy saving (ES) modes; transmit an indication of the plurality of SSB Tx periodicities associated with the plurality of ES modes, wherein the indication of the plurality of SSB Tx periodicities associated with the plurality of ES modes is transmitted from a central unit (CU) to a distributed unit (DU), from the DU to the CU, or between CUs; and transmit one or more SSBs based on one of the plurality of SSB Tx periodicities associated with one of the plurality of ES modes. ### Claim 2 (depends on 1) The apparatus of claim 1, wherein to transmit the indication, the at least one processor is configured to transmit the indication from the CU to the DU or from the DU to the CU. ### Claim 3 (depends on 1) The apparatus of claim 1, wherein the plurality of SSB Tx periodicities are associated with one or more cells or one or more transmission and reception points (TRPs) of the DU. ### Claim 4 (depends on 1) The apparatus of claim 1, wherein to transmit the indication, the at least one processor is configured to transmit the indication between the CUs. ### Claim 5 (depends on 1) The apparatus of claim 1, wherein the at least one processor is further configured to: switch from one of the plurality of ES modes to another of the plurality of ES modes. ### Claim 6 (depends on 5) The apparatus of claim 5, wherein the at least one processor is further configured to: transmit a second indication of the switch from one of the plurality of ES modes to another of the plurality of ES modes. ### Claim 7 (depends on 1) The apparatus of claim 1, wherein the at least one processor is further configured to: transmit a second indication of each of a plurality of neighboring cells that are associated with one of the plurality of ES modes. ### Claim 8 (depends on 7) The apparatus of claim 7, wherein the second indication includes one or more SSB-based measurement timing configuration (SMTC) parameters. ### Claim 9 (depends on 7) The apparatus of claim 7, wherein the second indication includes one or more scaling factors associated with one or more physical cell identifiers (PCIs). ### Claim 10 (depends on 1) The apparatus of claim 1, wherein the plurality of SSB Tx periodicities include integrated access and backhaul (IAB) SSB transmission configuration (STC) periodicities. ### Claim 11 (depends on 10) The apparatus of claim 10, wherein the IAB STC periodicities are between 640 microseconds (ms) and 1280 microseconds (ms). ### Claim 12 (depends on 10) The apparatus of claim 10, wherein the plurality of SSB Tx periodicities include transmission and reception point (TRP) SSB periodicities. ### Claim 13 (depends on 12) The apparatus of claim 12, wherein the TRP SSB periodicities are configured to match the IAB STC periodicities. ### Claim 14 (depends on 12) The apparatus of claim 12, wherein the TRP SSB periodicities have a maximum periodicity of 1280 microseconds (ms). ### Claim 15 (depends on 10) The apparatus of claim 10, wherein the plurality of SSB Tx periodicities in a system information block type1 (SIB1) are configured to match a largest periodicity of the IAB STC periodicity. ### Claim 16 (depends on 1) The apparatus of claim 1, further comprising a transceiver coupled to the at least one processor. ### Claim 17 A method of wireless communication at a base station (BS), comprising: configuring a plurality of synchronization signal block (SSB) transmission (Tx) periodicities associated with a plurality of energy saving (ES) modes, wherein the indication of the plurality of SSB Tx periodicities associated with the plurality of ES modes is transmitted from a central unit (CU) to a distributed unit (DU), from the DU to the CU, or between CUs; transmitting an indication of the plurality of SSB Tx periodicities associated with the plurality of ES modes; and transmitting one or more SSBs based on one of the plurality of SSB Tx periodicities associated with one of the plurality of ES modes. ### Claim 18 An apparatus for wireless communication at a user equipment (UE), comprising: memory; and at least one processor coupled to the memory and configured to: receive an indication of a plurality of synchronization signal block (SSB) transmission (Tx) periodicities associated with a plurality of energy saving (ES) modes wherein the plurality of SSB Tx periodicities include integrated access and backhaul (IAB) SSB transmission configuration (STC) periodicities; and receive one or more SSBs based on one of the plurality of SSB Tx periodicities associated with one of the plurality of ES modes. ### Claim 19 (depends on 18) The apparatus of claim 18, wherein to receive the indication, the at least one processor is configured to receive the indication from a base station, a distributed unit (DU), or a central unit (CU). ### Claim 20 (depends on 18) The apparatus of claim 18, wherein to receive the indication, the at least one processor is configured to receive the indication in one or more formats of a system information block (SIB) or a radio resource control (RRC) message. ### Claim 21 (depends on 18) The apparatus of claim 18, wherein the at least one processor is further configured to: receive a second indication of a switch from one of the plurality of ES modes to another of the plurality of ES modes. ### Claim 22 (depends on 18) The apparatus of claim 18, wherein the at least one processor is further configured to: receive a second indication of each of a plurality of neighboring cells that are associated with one of the plurality of ES modes. ### Claim 23 (depends on 22) The apparatus of claim 22, wherein the second indication includes one or more SSB-based measurement timing configuration (SMTC) parameters, or includes one or more scaling factors associated with one or more physical cell identifiers (PCIs). ### Claim 24 (depends on 18) The apparatus of claim 18, wherein the IAB STC periodicities are between 640 microseconds (ms) and 1280 microseconds (ms). ### Claim 25 (depends on 18) The apparatus of claim 18, wherein the plurality of SSB Tx periodicities include transmission and reception point (TRP) SSB periodicities, and wherein the TRP SSB periodicities are configured to match the IAB STC periodicities. ### Claim 26 (depends on 18) The apparatus of claim 18, wherein the plurality of SSB Tx periodicities in a system information block type1 (SIB1) are configured to match a largest periodicity of the IAB STC periodicity. ### Claim 27 (depends on 18) The apparatus of claim 18, further comprising a transceiver coupled to the at least one processor. ### Claim 28 A method of wireless communication at a user equipment (UE), comprising: receiving an indication of a plurality of synchronization signal block (SSB) transmission (Tx) periodicities associated with a plurality of energy saving (ES) modes, wherein the plurality of SSB Tx periodicities include integrated access and backhaul (IAB) SSB transmission configuration (STC) periodicities; and receiving one or more SSBs based on one of the plurality of SSB Tx periodicities associated with one of the plurality of ES modes.