# US 12,010,622 B2 · Activation of wake-up signaling operation > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,010,622 B2 - Document ID: US12010622B2 - Status: Granted - Kind: B2 - Application number: 17/794,976 - Filed: 2021-02-12 - Published: 2023-03-23 - Granted: 2024-06-11 - Earliest claimed: 2020-02-13 - Assignees: Sony Group Corporation - Applicants: Sony Group Corporation - Inventors: Anders Berggren; Torgny Palenius - Web page: https://patentgrep.com/patent/US12010622B2 ## CPC - H04W 52/0229: {where the received signal is a wanted signal} - H04W 68/025: {Indirect paging} - H04W 68/04: multi-step notification using statistical or historical mobility data - H04W 76/27: Transitions between radio resource control [RRC] states - H04W 52/0219: {where the power saving management affects multiple terminals} - H04W 76/28: Discontinuous transmission [DTX]; Discontinuous reception [DRX] - 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 A method of operating a wireless communication device (101) connectable to a cellular network (100) includes obtaining information (791) indicating whether a wake-up signaling operation is activated for the wireless communication device (101) in individual cells (701-720) of the cellular network (100). The method also includes determining, based on the obtained information (791) and a current cell of the cellular network (100), whether the wake-up signaling operation is activated for the wireless communication device (101) in the current cell. The method further includes, upon determining that the wake-up signaling operation is activated in the current cell: monitoring for a wake-up signal (980) prior to a paging occasion (396) in accordance with the wake-up signaling operation. ## Claims ### Claim 1 A method of operating a wireless communication device connectable to a cellular network, the method comprising: obtaining information indicating whether a wake-up signaling operation is activated for the wireless communication device in individual cells of the cellular network depending on a position of the cells of the cellular network in a paging escalation sequence, wherein the paging escalation sequence includes progressively increasing a paging radius around one or more most recently active cells, the paging escalation sequence includes a first stage in which the wake-up signaling operation is activated for the wireless communication device only in the one or more most recently active cells, and a second stage in which the wake-up signaling operation is only activated for the wireless communication device in one or more neighboring cells that surround the one or more most recently active cells, determining, based on the obtained information and a current cell of the cellular network and a detected direction of movement for the wireless communication device, whether the wake-up signaling operation is activated for the wireless communication device in the current cell, and upon determining that the wake-up signaling operation is activated in the current cell: monitoring for a wake-up signal prior to a paging occasion in accordance with the wake-up signaling operation. ### Claim 2 (depends on 1) The method of claim 1, wherein the information indicates whether a wake-up signaling operation is activated for the wireless communication device in the individual cells depending on a position of the individual cells of the cellular network in a paging escalation sequence. ### Claim 3 (depends on 1) The method of claim 1, wherein the information is indicative of a selective activation of the wake-up signaling operation depending on one or more paging areas configured for the wireless communication device. ### Claim 4 (depends on 1) The method of claim 1, wherein the information is indicative of a selective activation of the wake-up signaling operation depending on at least one of a distance to one or more most-recent active cells, a mobility pattern of the wireless communication device, an elapsed time since a trigger event, a wake-up signaling capability of the current cell, or a position of cells of the cellular network with respect to mobility infrastructure. ### Claim 5 (depends on 1) The method of claim 1, wherein the information comprises at least one of a derivation rule comprising one or more parameterized criteria for activating the wake-up signaling operation, a look-up-table, a logical bitmap, an index of a codebook of derivation rules, or a list of cells. ### Claim 6 (depends on 1) The method of claim 1, wherein said obtaining of the information comprises communicating data indicative of the information from the cellular network to the wireless communication device. ### Claim 7 (depends on 6) The method of claim 6, wherein the data is at least partly communicated when the wireless communication device operates in a connected mode, prior to a transition to a disconnected mode. ### Claim 8 (depends on 6) The method of claim 6, wherein the data is at least partly included in a connection control message associate with a data connection established in a connected mode, prior to a transition to a disconnected mode. ### Claim 9 (depends on 8) The method of claim 8, wherein the connection control message is a connection deactivation message triggering the transition to the disconnected mode. ### Claim 10 (depends on 6) The method of claim 6, wherein the data is at least partly included in a broadcasted information block or a paging area update message. ### Claim 11 (depends on 1) The method of claim 1, wherein the paging escalation sequence includes a first stage in which the wake-up signaling operation is only activated for the wireless communication device in the one or more most recently active cells, and a second stage in which the wake-up signaling operation is only activated for the wireless communication device in the one or more most recently active cells and in one or more neighboring cells that surround the one or more most recently active cells. ### Claim 12 A method of operating a node of a cellular network, the method comprising: determining, for each of one or more cells of the cellular network, whether to activate a wake-up signaling operation for a wireless communication device in a respective cell of the one or more cells prior to paging the wireless communication device, wherein said determining depends on a detected direction of movement for the wireless communication device and a paging escalation sequence for paging the wireless communication device, the paging escalation sequence includes a first stage in which the wake-up signaling operation is activated for the wireless communication device only in one or more most recently active cells, and a second stage in which the wake-up signaling operation is only activated for the wireless communication device in one or more neighboring cells that surround the one or more most recently active cells, and upon determining that the wake-up signaling operation is to be activated in at least one cell of the one or more cells: triggering a transmission of a wake-up signal prior to a paging occasion in the one or more cells in accordance with the wake-up signaling operation. ### Claim 13 (depends on 12) The method of claim 12, further comprising: providing, to the wireless communication device, information indicating whether the wake-up signaling operation is activated for the wireless communication device in individual cells of the cellular network, in accordance with said determining of whether to activate the wake-up signaling operation. ### Claim 14 (depends on 13) The method of claim 13, further comprising: obtaining information indicative whether to activate the wake-up signaling operation for the wireless communication device in individual cells of the cellular network, wherein said determining of whether to activate the wake-up signaling operation is based on the information. ### Claim 15 (depends on 12) The method of claim 12, wherein said determining whether to activate the wake-up signaling operation for the wireless communication device depends on a traffic load in the cells of the cellular network. ### Claim 16 (depends on 12) The method of claim 12, wherein said determining whether to activate the wake-up signaling operation for the wireless communication device depends on a number of wireless communication devices operating in a disconnected mode or a number of wireless communication devices sharing a wake-up signal. ### Claim 17 (depends on 12) The method of claim 12, wherein the paging escalation sequence includes progressively increasing a paging radius around one or more most recently active cells. ### Claim 18 A wireless communication device connectable to a cellular network and comprising a control circuitry configured to: obtain information indicating whether a wake-up signaling operation is activated for the wireless communication device in individual cells of the cellular network, wherein the wake-up signaling operation is activated according to a paging escalation sequence that includes includes a first stage in which the wake-up signaling operation is activated for the wireless communication device only in one or more most recently active cells, and a second stage in which the wake-up signaling operation is only activated for the wireless communication device in one or more neighboring cells that surround the one or more most recently active cells, determine, based on the obtained information and a current cell of the cellular network and a detected direction of movement for the wireless communication device, whether the wake-up signaling operation is activated for the wireless communication device in the current cell, and upon determining that the wake-up signaling operation is activated in the current cell: monitor for a wake-up signal prior to a paging occasion in accordance with the wake-up signaling operation. ### Claim 19 (depends on 18) The wireless communication device of claim 18, wherein the paging escalation sequence includes progressively increasing a paging radius around one or more most recently active cells. ### Claim 20 (depends on 18) The wireless communication device of claim 18, wherein said determining whether to activate the wake-up signaling operation for the wireless communication device depends on a number of wireless communication devices operating in a disconnected mode or a number of wireless communication devices sharing a wake-up signal.