Monitoring low power signals
Patent Information
- Application Number
- PCT/CN2025/085894
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2025-03-28
- Publication Date
- 2026-10-01
Smart Images

Figure CN2025085894_01102026_PF_FP_ABST
Abstract
Description
MONITORING LOW POWER SIGNALSTECHNICAL FIELD
[0001] This description relates to low-power signal operation in radio resource control (RRC) IDLE / INACTIVE mode.BACKGROUND
[0002] Wireless communication networks provide integrated communication platforms and telecommunication services to wireless user devices. Example telecommunication services include telephony, data (e.g., voice, audio, and / or video data) , messaging, and / or other services. The wireless communication networks have wireless access nodes that exchange wireless signals with the wireless user devices using one or more wireless network protocols, such as protocols described in various telecommunication standards promulgated by the European Telecommunications Standards Institute (ETSI) Third Generation Partnership Project (3GPP) . The wireless communication networks facilitate mobile broadband service using technologies such as orthogonal frequency-division multiple access (OFDMA) , multiple-input multiple output (MIMO) , advanced channel coding, massive MIMO, beamforming, and / or other features.SUMMARY
[0003] One aspect of the present disclosure relates to a method including: receiving configuration information associated with one or more low-power wake-up signal monitoring occasions (LP-WUS MOs) within a LP-WUS occasion (LO) and monitoring one or more LP-WUSs based on the configuration information.
[0004] In some implementations, monitoring the one or more LP-WUSs within the one or more LP-WUS MOs based on the configuration information comprises determining, based on the configuration information, one or more beams in which the one or more LP-WUSs are transmitted within the LO among a plurality of beams corresponding to synchronization signal / PBCH blocks (SSBs) and monitoring the one or more LP-WUSs in the one or more beams within the LO.
[0005] In some implementations, the configuration information comprises a first information associated with the one or more beams in which the one or more LP-WUSs are transmitted within the LO, and the first information comprises a bitmap indicating whether the one or more LP-WUSs are transmitted in each of the plurality of beams for transmitted SSBs.
[0006] In some implementations, a length of the bitmap is determined based on a number of the plurality of beams corresponding to SSBs, each bit field of the bitmap corresponds to one particular beam of the plurality of beams, different bit fields of the bitmap corresponds to different beams of the plurality of beams, a value of 1 for a bit field of the bitmap indicates that one or more LP-WUSs are transmitted in the corresponding beam of the plurality of beams, and a value of 0 for bit field of the bitmap indicates that one or more LP-WUSs are not transmitted in the corresponding beam of the plurality of beams.
[0007] In some implementations, monitoring the one or more LP-WUSs within the one or more LP-WUS MOs based on the configuration information comprises determining time domain resources for the one or more LP-WUS MOs based on the configuration information, and monitoring the one or more LP-WUSs within the time domain resources for the one or more LP-WUS MOs within the LO. The configuration information comprises a second information associated with the time domain resources for the one or more LP-WUS MOs.
[0008] In some implementations, the second information comprises information associated with a periodicity for the one or more LP-WUS MOs and information associated with one or more candidate starting symbol locations of LP-WUS MOs within a period determined by the periodicity. In some implementations, the second information comprises an offset value indicating the first LP-WUS MO in the LO with respect to a reference point. The reference point is one of a paging occasion (PO) or a paging frame (PF) plus a frame-level offset. In some implementations, the information associated with one or more candidate starting symbol locations of LP-WUS MOs within the period comprises at least one of a set of starting symbol indices of LP-WUS MOs within the period, or a bitmap indicating the one or more starting symbols of LP-WUS MOs within the period.
[0009] In some implementations, the second information comprises one or more of information associated with a periodicity for the one or more LP-WUS MOs, information associated with a set of slot offset values, or information associated with one or more starting symbols of LP-WUS MOs within a slot. In some implementations, the information associated with one or more starting symbols of the LP-WUS MOs within the slot comprises one of a set of starting symbol indices of the LP-WUS MOs within the slot, or a bitmap indicating the one or more starting symbols of the LP-WUS MOs within the slot.
[0010] In some implementations, the configuration information comprises information associated with frequency domain resources for the one or more LP-WUS MOs, and the information associated frequency domain resources for the one or more LP-WUS MOs indicates physical resource blocks (PRBs) on which the one or more LP-WUSs are mapped.
[0011] In some implementations, the configuration information comprises at least one of: information associated with an offset value for the one or more LP-WUS MOs with respect to a reference point, information associated with a number of subgroups per a PO, information associated with a number of information bits in each LP-WUS, information associated with a number of on-off keying (OOK) symbols per an orthogonal frequency-division multiplexing (OFDM) symbol for each LP-WUS, information associated with a time duration for each LP-WUS, information associated with a number of LP-WUS MOs per a beam or information associated with a number of LP-WUS MOs per a LO, or information associated with one or more root sequence indices and one or more cyclic shifts for generating one or more overlaid sequences for OOK ON symbols for the one or more LP-WUSs. The reference point is represented as one of a PO or a PF.
[0012] In some implementations, the method further comprises determining invalid symbols for LP-WUS MOs based on a time division duplex (TDD) pattern configured by a parameter tdd-UL-DL-ConfigurationCommon or a configured mask information and determining LP-WUS MOs that include the invalid symbols among the one or more LP-WUS MOs as invalid.
[0013] In some implementations, monitoring one or more LP-WUSs based on the configuration information comprises one of: monitoring the one or more LP-WUSs within LP-WUS MOs that are not determined as invalid, or monitoring the one or more LP-WUSs within the one or more LP-WUS MOs, and the invalid symbols between starting symbol and last symbol of each LP-WUS MO are skipped for monitoring the one or more LP-WUSs.
[0014] Another aspect of the present disclosure relates to a method including: receiving configuration information associated with one or more low-power synchronization signals (LP-SSs) and monitoring the one or more LP-SSs based on the configuration information.
[0015] In some implementations, the configuration information comprises information associated with a periodicity of transmission of the one or more LP-SSs, and the configuration information comprises an offset value for transmission of the one or more LP-SSs with respect to a reference point.
[0016] In some implementations, monitoring the one or more LP-SSs based on the configuration information comprises: determining one or more beams in which the one or more LP-SSs are transmitted within a period among a plurality of beams for transmitted SSBs based on the configuration information, and monitoring the one or more LP-SSs in the one or more beams within the period. The period is determined based on the information associated with the periodicity of transmission of the one or more LP-SSs.
[0017] In some implementations, the configuration information comprises a first information associated with the one or more beams in which the one or more LP-SSs are transmitted within the period, the first information comprises a bitmap indicating whether the one or more LP-SSs are transmitted in each of the plurality of beams for transmitted SSBs, a length of the bitmap is determined based on a number of the plurality of beams for transmitted SSBs, each bit field of the bitmap corresponds to one beam with an index value among the plurality of beams for transmitted SSBs, a value of 1 for the each bit field indicates that the one or more LP-SSs are transmitted in the one beam with the index value, and a value of 0 for the each bit field indicates that the one or more LP-SSs are not transmitted in the one beam with the index value.
[0018] In some implementations, monitoring the one or more LP-SSs based on the configuration information comprises: determining N transmission occasions for the one or more LP-SSs within a period based on the configuration information and monitoring the one or more LP-SSs within the N transmission occasions within the period. N is determined based on a number of beams in which the one or more LP-SSs are transmitted within the period, and the period is determined based on the information associated with the periodicity of transmission of the one or more LP-SSs.
[0019] In some implementations, the configuration information comprises one of: information associated with N pairs of an offset value and a starting symbol index of the N transmission occasions, or information associated with N starting symbol indices of the N transmission occasions with respect to a reference point, the reference point being a symbol index with a value of 0. In some implementations, the method further comprising: determining invalid symbols for LP-SS based on a time division duplex (TDD) pattern configured by a parameter tdd-UL-DL-ConfigurationCommon or a configured mask information and determining transmission occasions that include the invalid symbols for LP-SS as invalid, and monitoring the one or more LP-SSs comprises monitoring the one or more LP-SSs within N transmission occasions that are not determined as invalid. In some implementations, monitoring the one or more LP-SSs comprises monitoring the one or more LP-SSs within the N transmission occasions, and the invalid symbols between starting symbol and last symbol of each of the N transmission occasions are skipped for monitoring the one or more LP-SSs.
[0020] In some implementations, the configuration information comprises at least one of: information associated with frequency domain resources for the one or more LP-SSs, information associated with a number of OOK symbols per an OFDM symbol for each LP-SS, information associated with a time duration for each LP-SS, information associated with a binary sequence used for each LP-SS, or information associated with one or more root sequence indices and one or more cyclic shifts for generating one or more overlaid sequences for OOK ON symbols for the one or more LP-SSs. The information associated frequency domain resources for the one or more LP-SSs indicates PRBs on which the one or more LP-SSs are mapped. The information associated with a time duration for each LP-SS is represented based on a length of binary sequence used for each LP-SS, or by a number of OFDM symbols. The information associated with a binary sequence used for each LP-SS comprises a pointer to one of pre-defined sequences.
[0021] Another aspect of the present disclosure relates to a method including: receiving configuration information associated with one or more additional synchronization signals (A-SSs) and monitoring the one or more A-SSs based on the configuration information.
[0022] In some implementations, each of the one or more A-SSs is transmitted before each LP-WUS MO. In some implementations, the configuration information comprises information associated with a time duration for a LP-WUS MO, and the time duration for the LP-WUS MO comprises a time duration for transmission occasion for a LP-WUS and a time duration for transmission occasion for each A-SS.
[0023] In some implementations, each A-SSs is transmitted before a first LP-WUS MO of one or more LP-WUS MOs in a beam. In some implementations, the configuration information comprises information associated with a time duration for each A-SS, and the time duration for each A-SS is based on a number of OOK symbols per an OFDM symbol for each A-SS.
[0024] In some implementations, the configuration information comprises information associated with a starting symbol of a transmission occasion for each A-SS in the beam. In some implementations, based on that the slot offset being with respect to the first LP-WUS MO of the one or more LP-WUS MOs in the beam, common parameters associated with the starting symbol and the slot offset are configured for the one or more A-SSs in all beams. In some implementations, different parameters associated with the starting symbol and the slot offset are configured for the one or more A-SSs in different beams.
[0025] Another aspect of the present disclosure relates to a method including: monitoring one or more LP-WUS MOs within a LO receiving a LP-WUS including information associated with wake-up indications for one or more POs mapped to the LO, and monitoring one of the one or more POs based on the information associated with the wake-up indications.
[0026] In some implementations, the information associated with the wake-up indications comprises a concatenation of more than one bitmap for the one or more POs, each bitmap represents a wake-up indication for each PO, and each bit field of each bitmap corresponds to one subgroup of each PO.
[0027] In some implementations, the information associated with the wake-up indications comprises a concatenation of more than one codepoint for the one or more POs, each codepoint represents a wake-up indication for each PO, and each codepoint corresponds to one or more subgroups of each PO.
[0028] In some implementations, the information associated with the wake-up indications comprises a concatenation of more than one set of codepoints, each set of codepoints comprises more than one codepoint, and each set of codepoints represents a wake-up indication for each PO.
[0029] In some implementations, the information associated with the wake-up indications comprises an index of a PO of the one or more POs and a bitmap for the PO, the bitmap represents a wake-up indication for the PO, and each bit field of the bitmap corresponds to one subgroup of the PO.
[0030] In some implementations, the information associated with the wake-up indications comprises an index of a PO of the one or more POs and a codepoint for the PO, the codepoint represents a wake-up indication for the PO, and the codepoint corresponds to one or more subgroups of the PO.
[0031] In some implementations, the information associated with the wake-up indications comprises an index of a PO of the one or more POs and a set of codepoints for the PO, the set of codepoints comprises more than one codepoint, and the set of codepoints represents a wake-up indication for the PO.
[0032] In some implementations, the information associated with the wake-up indications comprises more than one pair of one index and one codepoint. In some implementations, based on that more than one index indicates a same PO, more than one codepoint represents a wake-up indication for the same PO. In some implementations, based on that more than one index indicates different POs, more than one codepoint represents wake-up indications for the different POs.
[0033] In some implementations, the information associated with the wake-up indications comprises one or more codepoints for the one or more POs, a plurality of subgroups is indexed across the one or more POs, and each codepoint represents a wake-up indication for one or more subgroups among the plurality of subgroups.
[0034] Another aspect of the present disclosure relates to an apparatus including one or more processors configured to perform any of the foregoing methods.
[0035] Another aspect of the present disclosure relates to a user equipment (UE) including memory, a transceiver, and a processor coupled to the memory and configured to, when executing instructions stored in the memory, cause the UE to perform any of the foregoing methods.
[0036] The details of one or more embodiments of the present disclosure are set forth in the accompanying drawings and the description below. Other features, objects, and advantages will be apparent from the description and drawings, and from the claims. BRIEF DESCRIPTION OF THE FIGURES
[0037] FIG. 1 illustrates an example wireless network, according to some implementations.
[0038] FIG. 2 illustrates an example scheme for power saving associated with multiple radios, according to some implementations.
[0039] FIG. 3 illustrates an example diagram for the structure of LO associated with beam-based operations, according to some implementations.
[0040] FIG. 4 illustrates an example scheme for beam configurations for LP-SS / LP-WUS associated with beam-based operations, according to some implementations.
[0041] FIGs. 5A-5G illustrate an example scheme for time domain resource configurations for LP-WUS MOs within a LO, according to some implementations.
[0042] FIGs. 6A and 6B illustrate an example scheme for synchronization for LP-WUR, according to some implementations.
[0043] FIGs. 7A-7I illustrate an example scheme for wake-up indications associated with LO to PO mapping, according to some implementations.
[0044] FIG. 8 illustrates a flowchart of an example method for configurations for LP-WUS MOs within a LO, according to some implementations.
[0045] FIG. 9 illustrates a flowchart of an example method for configurations for LP-SSs, according to some implementations.
[0046] FIG. 10 illustrates a flowchart of an example method for configurations for A-SSs, according to some implementations.
[0047] FIG. 11 illustrates a flowchart of an example method for configurations for wake-up indications associated with LO to PO mapping, according to some implementations.
[0048] FIG. 12 illustrates an example UE, according to some implementations.
[0049] FIG. 13 illustrates an example access node, according to some implementations.DETAILED DESCRIPTION
[0050] A user equipment (UE) may be equipped with multiple radio components to communicate with a network node (for example, a base station or other access node) and / or to perform measurements. For example, the UE may comprise a main radio (MR) and a low-power wake-up radio (LP-WUR) for power-saving purposes. If the UE is configured to use the LP-WUR while in a radio resource control (RRC) _IDLE state or a RRC_INACTIVE state, the UE may monitor a low-power synchronization signal (LP-SS) and a low-power wake-up signal (LP-WUS) using the LP-WUR. In some cases, if the LP-WUS supports beam-based operations, the UE may be configured to monitor one or more LP-WUS monitoring occasions (LP-WUS MOs) for each of one or more beams within a LP-WUS Occasion (LO) . In this context, resource configuration schemes for monitoring the LP-WUS for the beam-based operations may be needed.
[0051] In accordance with aspects of the present disclosure, the UE may be configured to receive configuration information for monitoring one or more LP-WUS monitoring occasions (LP-WUS MOs) within a LP-WUS occasion (LO) . The configuration information may include a first information, which can be, for example, information such as a bitmap that is associated with one or more beams corresponding to one or more synchronization signal blocks (SSBs) in which the one or more LP-WUSs are transmitted. The configuration information may include a second information, which can be, for example, information associated with time domain resources for one or more LP-WUS monitoring occasions within the LO. The UE may monitor the one or more LP-WUS MOs within the LO based on the configuration information. In this manner, power saving may be achieved at a UE.
[0052] FIG. 1 illustrates an example wireless network 100, according to some implementations. The wireless network 100 includes a UE 102 and a base station 104, which are connected via one or more channels 106A, 106B across an air interface 108. The UE 102 and base station 104 communicate using a system that supports controls for managing the access of the UE 102 to a network via the base station 104.
[0053] In some implementations, the wireless network 100 is a Standalone (SA) network, e.g., that incorporates fifth generation (5G) New Radio (NR) . In some other implementations, the wireless network 100 is a non-standalone (NSA) network that incorporates Long Term Evolution (LTE) and 5G NR. In these implementations, the wireless network 100 may be an Evolved Universal Terrestrial Radio Access (E-UTRA) NR dual connectivity (EN-DC) network, or an NR-EUTRA dual connectivity (NE-DC) network. Furthermore, wireless networks implementing one or more other types of communication standards are possible, including future 3GPP systems (e.g., sixth generation “6G” ) , Institute of Electrical and Electronics Engineers (IEEE) 1202.11 technology, or the like. While aspects may be described herein using terminology commonly associated with 5G NR, aspects of the present disclosure can be applied to other systems, such as systems subsequent to 5G (e.g., 6G) .
[0054] In the wireless network 100, the UE 102 and any other UE in the system may be, for example, any of a laptop computer, smartphone, tablet computer, machine-type device (such as smart meters or specialized devices for healthcare) , intelligent transportation system, or any other wireless device. In the wireless network 100, the base station 104 provides the UE 102 network connectivity to a broader network (not shown) . This UE 102 connectivity is provided via the air interface 108 in a base station service area provided by the base station 104. In some implementations, such a broader network may be a wide area network operated by a cellular network provider, or may be the Internet. Each base station service area associated with the base station 104 is supported by one or more antennas integrated with the base station 104. The service areas can be divided into a number of sectors associated with one or more particular antennas. Such sectors may be physically associated with one or more fixed antennas or may be assigned to a physical area with one or more tunable antennas or antenna settings adjustable in a beamforming process used to direct a signal to a particular sector.
[0055] The UE 102 includes control circuitry 110 coupled with transmit circuitry 112 and receive circuitry 114. The transmit circuitry 112 and receive circuitry 114 may each be coupled with one or more antennas. The control circuitry 110 may include application-specific circuitry, baseband circuitry, or any of various combinations thereof. The transmit circuitry 112 and receive circuitry 114 may be adapted to transmit and receive data, respectively, and may include radio frequency (RF) circuitry and / or front-end module (FEM) circuitry.
[0056] In various implementations, aspects of the transmit circuitry 112, receive circuitry 114, and / or control circuitry 110 may be integrated in various ways to implement the operations described herein. The control circuitry 110 may be adapted or configured to perform various operations, such as those described elsewhere in this disclosure related to a UE. For example, the control circuitry 110 can determine a measurement period for UE-initiated / event-driven beam measurement reporting based on a periodicity of reference signals associated with a first / second beam, a number of samples used for measurements of the first / second beam, and so on.
[0057] The transmit circuitry 112 can perform various operations described herein. For example, the transmit circuitry 112 can transmit a PUCCH to request uplink resources for a UE-initiated / event-driven beam measurement report. Additionally, the transmit circuitry 112 may transmit using a plurality of multiplexed uplink physical channels. The plurality of uplink physical channels may be multiplexed, e.g., according to time division multiplexing (TDM) or frequency division multiplexing (FDM) , and in some implementations, along with carrier aggregation (CA) . The transmit circuitry 112 may be configured to receive block data from the control circuitry 110 for transmission on the air interface 108.
[0058] The receive circuitry 114 can perform various operations described herein. For example, the receive circuitry 114 can receive one or more reference signals (such as an SSB) via a first beam and a second beam during a measurement period that depends on a reference signal periodicity of the first beam and / or the second beam. Additionally, the receive circuitry 114 may receive a plurality of multiplexed downlink physical channels from the air interface 108 and relay the physical channels to the control circuitry 110. The plurality of downlink physical channels may be multiplexed, e.g., according to TDM or FDM, e.g., along with CA. The transmit circuitry 112 and the receive circuitry 114 may transmit and receive, respectively, both control data and content data (e.g., messages, images, video, and the like) structured within data blocks that are carried by the physical channels.
[0059] FIG. 1 also illustrates the base station 104. In some implementations, the base station 104 may be a 5G radio access network (RAN) , a next generation RAN, a E-UTRAN, a non-terrestrial cell, or a legacy RAN, such as a UTRAN. As used herein, the term “5G RAN” or the like may refer to the base station 104 that operates in an NR wireless network 100, and the term “E-UTRAN” or the like may refer to a base station 104 that operates in an LTE wireless network 100. The UE 102 utilizes connections (or channels) 106A, 106B, each of which includes a physical communications interface or layer.
[0060] The base station 104 circuitry may include control circuitry 116 coupled (directly or indirectly) with transmit circuitry 118 and / or receive circuitry 120. The transmit circuitry 118 and receive circuitry 120 may each be coupled (directly or indirectly) with one or more antennas that may be used to enable communications via the air interface 108. The transmit circuitry 118 and receive circuitry 120 may be adapted to transmit and receive data, respectively, addressed to any UE connected to the base station 104. The receive circuitry 120 may receive a plurality of uplink physical channels from one or more UEs, including the UE 102.
[0061] In FIG. 1, the one or more channels 106A, 106B are illustrated as an air interface to enable communicative coupling, and can be consistent with cellular communications protocols, such as an LTE protocol, advanced LTE (LTE-A) protocol, LTE-based access to unlicensed spectrum (LTE-U) , NR protocol, NR-based access to unlicensed spectrum (NR-U) protocol, and / or any other communications protocol (s) . In some implementations, the UE 102 may directly exchange communication data via a ProSe interface. The ProSe interface may alternatively be referred to as a sidelink interface and may include one or more logical channels, including but not limited to a physical sidelink control channel (PSCCH) , a physical sidelink discovery channel (PSDCH) , and a physical sidelink broadcast channel (PSBCH) .
[0062] A UE (such as the UE 102) may be in one of three RRC states (or “modes” ) , such as a RRC_CONNECTED state, a RRC_IDLE state, or a RRC_INACTIVE state. The UE may transition among the RRC_CONNECTED state, the RRC_IDLE state, and the RRC_INACTIVE state. For example, upon powering up, the UE may enter the RRC_IDLE state. The UE may transition from the RRC_IDLE state to the RRC_CONNECTED state via a RRC connection establishment procedure. The UE may transition from the RRC_CONNECTED state to the RRC_IDLE state via a RRC connection release procedure. Alternatively, the UE may transition from the RRC_CONNECTED state to the RRC_INACTIVE state via a RRC connection suspension procedure. In the RRC_INACTIVE state, the UE maintains the RRC connection while reducing signaling and power consumption. From the RRC_INACTIVE state, the UE may transition to the RRC_CONNECTED state via a RRC connection resume procedure, or may transition to the RRC_IDLE state via a RRC connection release procedure.
[0063] Paging is a mechanism in RRC protocol whereby a network (such as the base station 104) informs a UE (such as the UE 102) of incoming traffic for the UE. For example, the network may transmit one or more paging messages (or “paging information” ) in PDCCH to the UE in the RRC_IDLE state or the RRC_INACTIVE state. In the RRC_IDLE state or the RRC_INACTIVE state, a UE may be configured to monitor paging occasions (POs) for paging PDCCHs. For example, the UE in the RRC_IDLE state or the RRC_INACTIVE state may periodically wake up to monitor the POs for the paging PDCCHs. The PO may be defined as a set of PDCCH monitoring occasions and may consist of one or more time slots where paging downlink control information (DCI) can be sent. A paging frame (PF) may be defined as one radio frame and may consist of one or more POs or a starting point of the PO.
[0064] FIG. 2 illustrates an example scheme 200 for power saving associated with multiple radios, according to some implementations. For clarity of presentation, the example scheme 200 is described in the context of the preceding figures. A UE (e.g., the UE 102) may be equipped with multiple radio components to communicate with a network node and / or to perform measurements. For example, the UE may comprise a main radio (MR) 205 and a low-power wake-up radio (LP-WUR) 210 for power-saving purposes. The UE may support the MR 205 and the LP-WUR 210 in a RRC_CONNECTED state, a RRC_IDLE state, and / or a RRC_INACTIVE state. The MR 205 may be associated with a relatively high power consumption, while the LP-WUR 210 may be associated with a relatively low power consumption. The MR 205 may be used to monitor and / or receive a synchronization signal / PBCH block (SSB) , a paging PDCCH, and / or any other types of traffic. The LP-WUR 210 may be used to monitor and / or receive a low-power synchronization signal (LP-SS) , a low-power wake-up signal (LP-WUS) , SSB, and / or any other type of low-power traffic (e.g., additional synchronization signal or preamble) . The MR 205 and / or the LP-WUR 210 may be used to perform radio resource management (RRM) measurements (e.g., RSRP, RSRQ) .
[0065] In some implementations, MR 205 and LP-WUR 210 may be implemented as logical entities. In some implementations, the MR 205 and the LP-WUR 210 may be separate entities. In other implementations, the MR 205 and the LP-WUR may share certain components.
[0066] One or more entry conditions for LP-WUS (e.g., conditions for monitoring and / or using the LP-WUS) may be configured to a UE. If the entry conditions for LP-WUS are fulfilled, the UE may stop using the MR 205 for paging monitoring and use the LP-WUR 210 to monitor LP-WUS monitoring occasions (LP-WUS MO) . For example, the UE may turn off the MR 205 or trigger the MR 205 to enter a sleep state (e.g., deep-sleep state, ultra-deep-sleep state or ultra-low-power state) if the entry conditions for LP-WUS are fulfilled. While the MR 205 is off or in the sleep state, the UE may not use the MR 205 to monitor an SSB or a paging PDCCH for PO.
[0067] One or more exit conditions for LP-WUS (e.g., conditions for not monitoring and / or not using the LP-WUS) may be configured to a UE. For example, when the UE receives the LP-WUS using the LP-WUR 210, or the measured RSRP / RSRQ falls under a threshold, the exit conditions for LP-WUS are fulfilled. When the exit conditions for LP-WUS are fulfilled, the UE may turn on the MR 205 or trigger the MR 205 to enter a normal state (e.g., a wake-up state) . When the exit conditions for LP-WUS are fulfilled, the LP-WUR 210 may be turned off or enter a sleep state. While the MR 205 is on or in the normal state, the UE may use the MR 205 to monitor an SSB and a paging PDCCH for PO and / or to perform RRM measurements.
[0068] FIG. 3 illustrates an example diagram 300 for the structure of LO associated with beam-based operations, according to some implementations. For clarity of presentation, the example diagram 300 is described in the context of the preceding figures. The example diagram 300 of FIG. 3 may support beam-based operations for transmission of LP-WUSs. For example, a base station (e.g., the base station 104) may transmit one or more LP-WUSs using one or more beams, such as beam 1, …, beam N. In this scenario, one or more LP-WUS MOs may be configured to a UE (e.g., the UE 102) for each beam. For example, multiple LP-WUS MOs may be configured to transmit different subgroup IDs to wake up different subgroups of UEs.
[0069] In FIG. 3, each LO may consist of N*K LP-WUS MOs, where N is the number of beams corresponding to LP-WUS, and K is the number of LP-WUS MOs for each beam (N, K being positive integers) . In some implementations, for beam N, the LP-WUS MOs may be indexed from (N-1) *K+1 to N*K , as shown in FIG. 3. In some implementations, a value of K may be fixed to 1. In other implementations, alternatively, a value of K may be larger than or equal to 1. In some implementations, a value of N may be larger than or equal to 1.
[0070] In some implementations, more than one LP-WUSs transmitted in the same beam may include the same information. In other implementations, more than one LP-WUSs transmitted in the same beam may include different information.
[0071] In some implementations, a LP-WUS may include subgroup information (e.g., subgroup IDs) associated with one or more subgroups of UEs in a RRC_IDLE state or a RRC_INACTIVE state. For example, a LP-WUS may indicate a codepoint value corresponding to one or more subgroups from multiple subgroups of UEs for part of one or more POs. As such, a UE in a RRC_IDLE state or a RRC_INACTIVE state may obtain subgroup wake-up information corresponding to the subgroup to which the UE belongs through the LP-WUS.
[0072] In some implementations, the UE may monitor one or more LP-WUS MOs (e.g., up to X LP-WUS MOs) for the same beam within a LO (where X is a positive integer) . A value of X may be, for example, larger than 1.
[0073] Some aspects of the present disclosure relate to configurations for LOs and LP-WUS MOs within a LO. In some implementations, a UE (e.g., the UE 102) may be configured to monitor one or more LP-WUS MOs within one or more LOs. In such implementations, a base station (e.g., base station 104) may transmit configurations for one or more LOs and / or configurations for one or more LP-WUS MOs within a LO (hereinafter, collectively, “LO configurations” ) to the UE. As such, the UE may receive the LO configurations from the base station. The LO configurations may include one or more information as described below.
[0074] In some implementations, the LO configurations may include information associated with frequency domain resources of the LOs and / or frequency domain resources of the LP-WUS MOs within a LO. For example, the information associated with frequency domain resources of the LOs and / or frequency domain resources of the LP-WUS MOs within a LO may include information that indicates one or more physical resource blocks (PRBs) on which LP-WUSs are mapped / transmitted (e.g., by PRB index) . As such, a UE may determine one or more PRBs on which LP-WUSs are mapped / transmitted based on the information associated with frequency domain resources of the LOs and / or frequency domain resources of the LP-WUS MOs within a LO.
[0075] In some implementations, the LO configurations may include information associated with the number of one or more POs mapped to the same LO.
[0076] In some implementations, the LO configurations may include information associated with an offset with respect to PO / PF (e.g., a combination of PO and PF) or a paging frame (e.g., in unit of frames) , which can be the reference point of defining LP-WUS MOs. For example, if one LO maps to one or more POs belonging to multiple PFs, the paging frame may indicate the first PF of the multiple PFs as the reference point. As such, a UE may determine the locations of LP-WUS MOs based on the reference point (e.g., PO / PF or a paging frame) and the offset between the LP-WUS MOs and the reference point.
[0077] In some implementations, the LO configurations may include information associated with the number of subgroups (e.g., subgroups of UEs) per PO.
[0078] In some implementations, the LO configurations may include information associated with the number of information bits of a LP-WUS. If this information is not configured, the number of information bits of a LP-WUS may be implicitly derived from other information included in the LO configurations. For example, the number of information bits of the LP-WUS may be derived from the information associated with the number of POs mapped to the same LO and the information associated with the number of subgroups per PO.
[0079] In some implementations, the LO configurations may include information associated with a value of M. The value of M may be the number of ON-OFF keying (OOK) symbols per OFDM symbol. If this information is not configured, the value of M may be implicitly derived from other information included in the LO configurations. For example, the value of M may be derived based on the information associated with the number of information bits of the LP-WUS and information associated with time duration for the LP-WUS.
[0080] In some implementations, the LO configurations may include information associated with time duration for a LP-WUS (hereinafter, “LP-WUS duration” ) (e.g., in unit of symbols or slots) . If this information is not configured, a LP-WUS duration may be implicitly derived from other information included in the LO configurations. For example, the LP-WUS duration may be derived based on the information associated with the number of information bits of the LP-WUS and the information associated with a value of M.
[0081] In some implementations, the LO configurations may include information associated with one or more beams (e.g., beams in which LP-SS / LP-WUS are transmitted) included within a LO.
[0082] In some implementations, the LO configurations may include the number of LP-WUS MOs per beam. In other implementations, alternatively, the configuration may include the total number of LP-WUS MOs per LO.
[0083] In some implementations, the LO configurations may include information associated with time domain resources of the LOs and / or time domain resources for LP-WUS MOs within a LO.
[0084] In some implementations, the LO configurations may include information associated with one or more root sequence indices and one or more cyclic shifts that are used for generating one or more overlaid sequences of LP-WUS for OOK ON symbols.
[0085] FIG. 4 illustrates an example scheme 400 for beam configurations for LP-SS / LP-WUS associated with beam-based operations, according to some implementations. For clarity of presentation, the example scheme 400 is described in the context of the preceding figures. As described above, beams for LP-SS / LP-WUS may be configured to a UE (e.g., the UE 102) . In such implementations, the LO configurations may include information associated with one or more beams (e.g., beams in which LP-SS / LP-WUS are transmitted) included within a LO.
[0086] In some implementations, a bitmap may be transmitted by a base station (e.g., the base station 104) to indicate beams in which LP-SS / LP-WUS (e.g., LP-SS and / or LP-WUS) are transmitted. In such implementations, the information associated with the beams included within a LO may include a bitmap that indicates the beams in which LP-SS / LP-WUS are transmitted within the LO. The beams (e.g., SSB beams) described herein may correspond to time domain positions of the transmitted SSB in a SSB burst (e.g., a half frame with SSBs) , as specified by the parameter, ssb-PositionInBurst (e.g., defined in 3GPP TS 38.331) included in system information block 1 (SIB1) .
[0087] In some implementations, the number of beams for transmission of LP-SS / LP-WUS within a LO may be less than the number of beams for transmission of SSBs (hereinafter, “SSB beams” ) . In this context, the length of the bitmap may be the same as the number of SSB beams. The number of SSB beams may be determined based on the parameter, ssb-PositionInBurst. For example, if the number of SSB beams is 8, the length of the bitmap may be 8. The SSB beams may be indexed from 0 to 7. Each bit field of the bitmap may indicate whether or not LP-SS / LP-WUS are transmitted in each of the corresponding SSB beams. For example, a value of each bit field of the 8-bit length bitmap (when the number of SSB beams is 8) may indicate whether or not LP-SS / LP-WUS are transmitted in each of the SSB beams with indices 0 to 7. The value of 1 for a bit may indicate that LP-SS / LP-WUS are transmitted in the corresponding SSB beam, while the value of 0 for a bit may indicate that LP-SS / LP-WUS are not transmitted in the corresponding SSB beam. For example, bitmap may be [1 0 0 1 1 1 0 1] , which is read left-to-right, with the leftmost bit being bit 0 and corresponding to SSB beam #0, and the rightmost bit being bit 7 and corresponding to SSB beam #7. This bitmap [1 0 0 1 1 1 0 1] indicates that LP-SS / LP-WUS are transmitted in the SSB beams with indices 0, 3, 4, 5, and 7, as shown in FIG. 4. In some implementations, the mapping relationship between LP-SS / LP-WUS and SSBs (e.g., SSB beams) is implicitly defined. For example, LP-SS / LP-WUS and the corresponding SSBs may be mapped to each other in a sequential way. As such, a UE may only monitor LP-SS / LP-WUS in the SSB beams indicated by the bitmap within a LO.
[0088] In some implementations, if LP-SS / LP-WUS are transmitted in a SSB beam, the LP-SS / LP-WUS and the corresponding SSB in the SSB beam are assumed to be quasi co-located. A type of quasi co-location (QCL) relationship between LP-SS / LP-WUS and the corresponding SSB may be either QCL-Type A or QCL-Type D. QCL-Type A may relate to parameters, including Doppler shift, Doppler spread, average delay, and delay spread, while QCL-Type D may relate to spatial Rx parameter, as specified in 3GPP TS 38.214. If QCL-Type A is configured to a UE, the UE may assume that LP-SS / LP-WUS is quasi co-located with the corresponding SSB with respect to Doppler shift, Doppler spread, average delay, and delay spread when applicable. If QCL-Type D is configured to a UE, the UE may assume that LP-SS / LP-WUS is quasi co-located with the corresponding SSB with respect to spatial reception (RX) parameters when applicable.
[0089] In some implementations, one or more entry conditions for monitoring LP-WUS and one or more exit conditions for stopping monitoring LP-WUS may consider only the beams that are configured for monitoring the LP-SS / LP-WUS. In some implementations, the UE may enter LP-WUS monitoring only if the strongest beam among one or more beams configured for monitoring LP-SS / LP-WUS satisfies the entry conditions for monitoring LP-WUS. In such implementations, a UE may determine that the entry conditions for monitoring LP-WUS are satisfied if reference signal received power (RSRP) and / or reference signal received quality (RSRQ) measured for the strongest beam is greater than a threshold value. In some implementations, the UE may exit LP-WUS monitoring only if the strongest beam among one or more beams configured for monitoring LP-SS / LP-WUS satisfies the exit conditions for monitoring LP-WUS. In such implementations, a UE may determine that the exit conditions for monitoring LP-WUS are satisfied if RSRP and / or RSRQ measured for the strongest beam is less than a threshold value.
[0090] FIGs. 5A-5G illustrate an example scheme 500 for time domain resource configurations for LP-WUS MOs within a LO, according to some implementations. For clarity of presentation, the example scheme 500 is described in the context of the preceding figures. As described above, time domain resources for LP-WUS MOs within a LO may be configured to a UE (e.g., the UE 102) . In such implementations, the LO configurations may include information associated with time domain resources of the LOs and / or time domain resources for the LP-WUS MOs within a LO.
[0091] In some implementations, time domain resources for LP-WUS MOs within a LO may be configured with a periodicity and a set of values to indicate candidate starting symbol locations for the LP-WUS MOs within a period. In such implementations, the LO configurations may include information associated with the periodicity and information associated with the candidate starting symbol locations for the LP-WUS MOs within each period. In some implementations, an offset with respect to the reference point (e.g., PO / PF or a paging frame with a frame-level offset) may be additionally configured to indicate the first LP-WUS MO within a LO (e.g., in a unit of symbols) . In such implementations, the LO configurations may additionally include information associated with an offset with respect to the reference point to indicate the first LP-WUS MO within a LO. If the offset is not explicitly configured, the first LP-WUS MO on or after the reference point may be regarded as the first LP-WUS MO within a LO. The subsequent LP-WUS MOs may be determined sequentially based on the candidate starting symbol locations for the LP-WUS MOs. In some implementations, a periodicity for LP-WUS MOs may be configured to be the same as the periodicity of the TDD configuration of a cell (e.g., serving cell) in order to match the LO configurations for LP-WUS MOs with the downlink / uplink (DL / UL) pattern indicated by the TDD configuration. As such, LP-WUS MOs can be configured for symbols that are not configured as uplink symbols by the TDD configuration.
[0092] In some implementations, the information associated with a periodicity for candidate starting symbol locations for LP-WUS MOs may be represented by a parameter Periodicity, and the information associated with candidate starting symbol locations for LP-WUS MOs within each period may be represented by a parameter monitoringSymbolsWithinPeriodicityList. The parameter Periodicity may indicate one of the candidate periodicities. The parameter monitoringSymbolsWithinPeriodicityList may indicate a set of symbol indices of one or more starting symbols. For example, if subcarrier spacing (SCS) is 15kHz, where 20 ms has 280 symbols, the parameters Periodicity and monitoringSymbolsWithinPeriodicityList may be specified as: Periodicity ENUMERATED {0.5ms, 1ms, 2ms, 5ms, 10ms, 20ms} monitoringSymbolsWithinPeriodicityList SEQUENCE (SIZE (1.. maxMOs-perPeriod) ) OF INTEGER (0.. 279) The value ranges for the parameters and the value for maxMOs-perPeriod may be determined based on the SCS. For example, if the parameter Periodicity indicates a periodicity of 5 ms and SCS is 15kHz, there may be a total of 70 symbols (=5 ms*14 symbols / ms) indexed from 0 to 69 within each 5 ms period. In this scenario, if the parameter monitoringSymbolsWithinPeriodicityList indicates values {2, 16, 32, 57} , the starting symbols of four LP-WUS MOs within each 5 ms period may be the symbols with the symbol indices 2, 16, 32, and 57, as shown in FIG. 5A. For another example, if the parameter Periodicity indicates a periodicity of 1 ms and SCS is 15kHz, there may be a total of 14 symbols (=1 ms*14 symbols / ms) indexed from 0 to 13 within each 1 ms period. In this scenario, if the parameter monitoringSymbolsWithinPeriodicityList indicates a single value {2} , the starting symbols of a single LP-WUS MOs within each 1 ms period may be the symbol with the symbol index 2, as shown in FIG. 5B.
[0093] In some implementations, the information associated with the periodicity may be represented by the parameter Periodicity described above, and the information associated with the starting symbol locations for the LP-WUS MOs within each period may be represented by a bitmap. The length of the bitmap may be the number of symbols within each period. Each bit field of the bitmap may correspond to a symbol within each period and may indicate whether the symbol can be the starting symbol of an LP-WUS MO. A value of 1 for each bit field may indicate that the corresponding symbol can be the starting symbol of an LP-WUS MO, while a value of 0 for each bit field may indicate that the corresponding symbol cannot be the starting symbol of an LP-WUS MO. For example, in the scenario where the parameter Periodicity indicates a periodicity of 5 ms and SCS is 15kHz, if more than one symbols with the symbol indices 2, 16, 32, and 57 are configured as the starting symbols, each value of the 3rd, 17th, 33rd, and 58th bit fields from the left of the 70-bit length bitmap may have a value of 1, and each value of the remaining bit field may have a value of 0, as shown in FIG. 5C. For another example, in the scenario where the parameter Periodicity indicates a periodicity of 1 ms and SCS is 15kHz, if the single symbol with the symbol index 2 are configured as the starting symbol, the 3rd bit field from the left of the 14-bit length bitmap may have a value of 1, and the remaining bit field may have a value of 0, as shown in FIG. 5D.
[0094] In some implementations, the information associated with the periodicity may be represented by the parameter Periodicity as described above, and the information associated with the starting symbol locations for the LP-WUS MOs within each period may include a set of slot offset values and symbol indices of one or more starting symbols within a slot. The slot offset values may indicate slot indices of one or more slots that include the starting symbols of LP-WUS MOs. For example, for 15kHz SCS, if the parameter Periodicity indicates a periodicity of 5 ms, and the slot offset values and the symbol indices of one or more starting symbols within a slot indicate {0, 1, 4} and 2, respectively, the starting symbols of LP-WUS MOs within each 5 ms period may be the symbols with the symbol index 2 within each of the slots with the slot indices 0, 1, and 4, as shown in FIG. 5E. In this scenario, each value of the 3rd, 17th, and 59th bit fields from the left of the 70-bit length bitmap may have a value of 1, and each value of the remaining bit field may have a value of 0, as shown in FIG. 5F.
[0095] In some implementations, time domain resources for LP-WUS MOs within a LO may be configured with one or more starting symbols within a slot and optionally configured with a set of slot offset values with respect to the reference point (e.g., PO / PF or a paging frame) . In such implementations, the LO configurations may include information associated with one or more starting symbols within a slot and optionally include information associated with a set of slot offset values with respect to the reference point. If at most one LP-WUS is transmitted in a slot, one starting symbol may be configured. If more than one LP-WUSs are transmitted in a slot, multiple starting symbols may be configured. In this context, the information associated with one or more starting symbols within a slot may be indicated by either a bitmap or a set of symbol indices of the starting symbols. If consecutive slots are used for LP-WUS MOs, the information associated with a set of slot offset values with respect to the reference point may be omitted.
[0096] In some implementations, time domain resources for LP-WUS MOs within a LO may be configured with a set of values. Each value may indicate a starting symbol location of a LP-WUS MO using an offset with respect to the reference point (e.g., in a unit of symbols) . In such implementations, the LO configurations may include information associated with a set of values, each of which indicates the starting location of a LP-WUS MO using an offset with respect to the reference point. In some implementations, the offset may be indicated in a differential way to reduce the signaling overhead. In such implementations, each value may use the previously indicated starting symbol location as a reference point and may be determined based on the previously indicated starting symbol location.
[0097] In some implementations, in case that the LP-WUS duration is represented in a unit of slots, time domain resource for LP-WUS MOs within a LO may be configured with one or more slots used for each of the LP-WUS MOs. In such implementations, the LO configurations may include information associated with one or more slots used for each LP-WUS MO. In some implementations, the information associated with one or more slots used for each LP-WUS MO may be a set of values. Each value may indicate the first slot of a LP-WUS MO using an offset with respect to the reference point (e.g., in a unit of slots) .
[0098] In some implementations, the information associated with one or more slots used for each LP-WUS MO may include a periodicity for candidate slots for LP-WUS and a bitmap, which indicates which slots can be used for LP-WUS MOs within the periodicity. In some implementations, the first LP-WUS MO may be additionally indicated by an offset with respect to the reference point (e.g., in a unit of slots) . In such implementations, the information associated with one or more slots used for each LP-WUS MO may additionally include an offset with respect to the reference point for the first LP-WUS MO. In some implementations, subsequent LP-WUS MOs after the first WUS MO may be determined sequentially based on the bitmap.
[0099] In some implementations, in case that the LP-WUS duration is represented in a unit of slots, time domain resource for LP-WUS MOs within a LO may be configured with symbols that can be used for LP-WUS MOs within a slot. In such implementations, the LO configurations may include information associated with symbols that can be used for LP-WUS MOs within a slot. In some implementations, symbols that can be used for LP-WUS MOs within a slot may be the same for all slots. In such implementations, symbols that can be used for LP-WUS MOs within a slot may be indicated by a starting symbol index and a duration, or by a bitmap, which has the same length as the number of symbols within the slot. In some implementations, symbols that can be used for LP-WUS MOs within a slot may be different for (e.g., vary across) different slots. In such implementations, symbols that can be used for LP-WUS MOs within a slot may be indicated by a periodicity and usable symbols for each slot within the periodicity. The usable symbols for each slot within the periodicity may be indicated by a starting symbol index and a duration of each slot, or by a bitmap.
[0100] In some implementations, a UE may determine invalid symbols (e.g., OFDM symbols) for LP-WUS MOs. In some implementations, the UE may use a TDD pattern configured by the parameter tdd-UL-DL-ConfigurationCommon (e.g., defined in 3GPP 38.331) to determine invalid symbols. In such implementations, the UE may determine uplink symbols configured by the TDD pattern as invalid symbols for LP-WUS MOs.
[0101] In some implementations, the UE may use a mask separately configured by a base station to determine invalid or valid symbols. In some implementations, the mask may be configured to inform the UE of which symbols should be considered invalid for LP-WUS MOs. In such implementations, the UE may determine symbols masked by the base station as invalid symbols for LP-WUS MOs. In other implementations, the mask may be configured to inform the UE of which symbols should be considered valid for LP-WUS MOs. In such implementations, the UE may determine symbols masked by the base station as valid symbols for LP-WUS MOs. In some implementations, invalid symbols may not be configured for LP-WUS MOs.
[0102] In accordance with the techniques described herein, different options may be considered regarding whether or not all symbols within a LP-WUS MO are required to be contiguous in the time domain. In some implementations, all symbols (e.g., OFDM symbols) within a LP-WUS MO may be required to be contiguous in the time domain. In this scenario, a LP-WUS MO considered valid (hereinafter, “valid LP-WUS MO” ) may start from the configured starting symbol and consist of contiguous symbols that do not overlap with invalid symbols (e.g., uplink symbols or masked symbols) . Symbols between the starting symbol and the last symbol of each of the LP-WUS MOs may not include any invalid symbols. Accordingly, the number of contiguous symbols within the valid LP-WUS MO may correspond to the configured LP-WUS duration. In such implementations, if contiguous symbols that start from the starting symbol of a LP-WUS MO and end at the last symbol of the LP-WUS MO overlap with invalid symbols, the LP-WUS MO may be considered invalid. As such, a UE may be configured to only monitor valid LP-WUS MOs where all symbols within each are contiguous in the time domain.
[0103] In some implementations, symbols (e.g., OFDM symbols) within a MO may not be required to be contiguous in the time domain. In this scenario, a LP-WUS MO may be configured to start from the configured starting symbol and consist of a set of symbols such that they do not overlap with invalid symbols (e.g., uplink symbols or masked symbols) until the total number of the set of symbols reaches the desired (e.g., configured) LP-WUS duration. Symbols between the starting symbol and the last symbol of each of the LP-WUS MOs may include invalid symbols. Accordingly, the number of contiguous symbols from the starting symbol to the last symbol of the LP-WUS MO may be equal to or greater than the configured LP-WUS duration. For example, assuming that the LP-WUS duration is 16 symbols (e.g., OFDM symbols) , the LP-WUS MO starts from the symbol indicated by the value of 1 of the bitmap and consists of the 16 symbols considered valid, while skipping all the 3 invalid symbols that overlap with uplink symbols configured by the parameter tdd-UL-DL-ConfigurationCommon, as shown in FIG. 5G. In such implementations, even if symbols between the starting symbol and the last symbol of the LP-WUS MO overlap with invalid symbols, the LP-WUS MO may not be considered invalid. As such, a UE may be configured to monitor LP-WUS MOs regardless of whether symbols configured for each of the LP-WUS MOs are contiguous in the time domain.
[0104] Due to invalid symbols existing between the starting symbol and the last symbol of the previous LP-WUS MOs, starting symbols to be configured for the following LP-WUS MOs may overlap with the previous LP-WUS MO. In some implementations, any following LP-WUS MOs to be configured with the starting symbols that overlap with the previous LP-WUS MO may be skipped. In other implementations, the starting symbols to be configured for any following LP-WUS MOs may be delayed such that the following LP-WUS MOs do not overlap with the previous LP-WUS MO.
[0105] In some implementations, all symbols (e.g., OFDM symbols) within a LP-WUS MO may additionally be required to be within the same slot. In such implementations, a base station may provide a proper configuration to a UE such that all symbols within a LP-WUS MO are configured within the same slot. In other implementations, if LP-WUS MOs include one or more symbols that are not within the same slot, a UE may exclude the LP-WUS MOs considered invalid.
[0106] In some implementations, LP-WUS MOs considered valid within a LO may be counted sequentially, starting from the first LP-WUS MOs within the LO until the total number of the LP-WUS MOs configured within the LO is reached.
[0107] FIGs. 6A and 6B illustrate an example scheme 600 for synchronization for LP-WUR, according to some implementations. For clarity of presentation, the example scheme 600 is described in the context of the preceding figures. To assist synchronization for LP-WUR of a UE (e.g., the UE 102) , periodic (e.g., periodically transmitted) LP-SS may be supported (e.g., with periodicity of 320 ms) . In addition to the periodic LP-SS, additional synchronization may be supported to facilitate a UE with LP-WUS detection. The example scheme 600 of FIGs. 6A and 6B may support additional synchronization signal to LP-SS.
[0108] Some aspects of the present disclosure relate to configurations for LP-SS. In some implementations, a UE may be configured to monitor LP-SS transmission occasions within each period. In such implementations, a base station may transmit configurations for LP-SS (hereinafter, “LP-SS configurations” ) to the UE. As such, the UE may receive the LP-SS configurations from the base station. The LP-SS configurations may include one or more information as described below.
[0109] In some implementations, the LP-SS configurations may include information associated with frequency domain resources of the LP-SS. For example, the information associated with frequency domain resources of the LP-SS may include information that indicates one or more physical resource blocks (PRBs) on which LP-SSs are mapped / transmitted (e.g., by PRB index) . As such, a UE may determine one or more PRBs on which LP-SSs are mapped / transmitted based on the information associated with frequency domain resources of the LP-SS.
[0110] In some implementations, the LP-SS configurations may include information associated with a periodicity of transmission of LP-SS (e.g., in ms or in unit of slots) and optionally include information associated with an offset with respect to the reference point for LP-SS transmission occasions (e.g., in ms or in unit of slots) . If the information associated with an offset is not configured, a UE may assume an offset with respect to the reference point for LP-SS transmission occasions may be a value of 0. The reference point for LP-SS transmission occasions may be defined based on the periodicity of transmission of LP-SS and the offset.
[0111] In some implementations, the LP-SS configurations may include information associated with a value of M. The value of M may be the number of On-off keying (OOK) symbols per OFDM symbol.
[0112] In some implementations, the LP-SS configurations may include information associated with time duration for a LP-SS (hereinafter, “LP-SS duration” ) . For example, information associated with a LP-SS duration may be represented by the length of the LP-SS binary sequence. For another example, information with a LP-SS duration may be represented by the number of OFDM symbols. If this information is not configured, a LP-SS duration may be implicitly derived from other information included in the LP-SS configurations. For example, the LP-SS duration may be derived based on the information associated with a value of M and information associated with LP-SS binary sequence.
[0113] In some implementations, the LP-SS configurations may include information associated with LP-SS binary sequence. For example, the information associated with LP-SS binary sequence may include a pointer to one of the pre-defined sequences. As such, the LP-SS binary sequence may be indicated using the pointer to one of the pre-defined sequences.
[0114] In some implementations, the LP-SS configurations may include information associated with one or more beams in which LP-SSs are transmitted with each period. In some implementations, the techniques described above for configuring beams for LP-WUS within a LO may also be applied for configuring beams for LP-SS within each period.
[0115] In some implementations, the LP-SS configurations may include information associated with one or more root sequence indices and one or more cyclic shifts that are used for generating one or more overlaid sequences of LP-SS for OOK ON symbols.
[0116] In some implementations, the LP-SS configurations may include information associated with N LP-SS transmission occasions within each period, where N may be the number of beams in which LP-SSs are transmitted. In some implementations, the information associated with N LP-SS transmission occasions within each period may include N pairs of a symbol index of a starting symbol and an offset value with respect to the reference point for the N LP-SS transmission occasions. For example, the symbol index of a starting symbol may be represented by a symbol index within a slot, and the offset value may be represented in a slot level (e.g., a slot offset) .
[0117] In some implementations, the information associated with N LP-SS transmission occasions within each period may include information associated with one or more starting symbols within a slot and optionally include a set of slot offset values with respect to the reference point for the N LP-SS transmission occasions. For example, one or more starting symbols within a slot may be indicated by a bitmap. The length of the bitmap may be the number of symbols within the slot. Each bit field of the bitmap may indicate whether the corresponding symbol to each bit field is a starting symbol within the slot. For another example, one or more starting symbols within a slot may be indicated by a set of symbol indices of the starting symbols within the slot. If consecutive slots are used for N LP-SS transmission occasions, the set of slot offset values with respect to the reference point may be omitted.
[0118] In some implementations, the information associated with N LP-SS transmission occasions within each period may include symbol indices of N starting symbols within a period. In such implementations, the reference point for the symbol indices of N starting symbols may be a symbol with the symbol index 0 within the period. In other implementations, the symbol indices of N starting symbols may be represented in a differential way to reduce the signaling overhead. In such implementations, each symbol index may use the previous symbol index as the reference point and may be determined based on the previous symbol index.
[0119] In some implementations, a UE may determine invalid symbols (e.g., OFDM symbols) for LP-SS and invalid LP-SS transmission occasions. In some implementations, the techniques described above for determining invalid LP-WUS MOs may also be applied for determining invalid LP-SS transmission occasions. In such implementations, different options may be used for each of LP-WUS and LP-SS. For example, all symbols within a LP-SS transmission occasion may be required to be contiguous in the time domain, while symbols within a LP-WUS MO may not be required to be contiguous in the time domain.
[0120] Some aspects of the present disclosure relate to configurations for additional synchronization signal (hereinafter, “A-SS” ) . In some cases, A-SS may also be referred to as a preamble. If LP-WUS is transmitted, A-SS may be configured for the transmission of LP-WUS and used by LP-WUR of a UE (e.g., the UE 102) for finer synchronization.
[0121] In some implementations, A-SS may be present (e.g., transmitted) for every LP-WUS MO, as shown in FIG. 6A. In such implementations, if multiple LP-WUS are transmitted in LP-WUS MOs in the same beam, multiple A-SSs may each be transmitted before each of the LP-WUS MO in the same beam. In this scenario, as A-SS may be considered part of (e.g., included in) LP-WUS, the techniques described above for the LO configuration may still be implemented in the same way, except for configuring a LP-WUS duration that should be extended to include A-SS. In some implementations, a LP-WUS MO may be extended to include a transmission occasion for a LP-WUS and a transmission occasion for an A-SS.
[0122] In some implementations, A-SS may be present once for all LP-WUS MOs for the same beam, as shown in FIG. 6B. In such implementations, if multiple LP-WUS are transmitted in LP-WUS MOs in the same beam, one A-SS may be transmitted before the first LP-WUS MO in the same beam. This technique may save signaling overhead and make resource configuration easier, as a network does not need to dimension A-SS for each LP-WUS MO, and LP-WUS / LP-SS can be relatively long due to low spectral efficiency. In this scenario, time domain resources for A-SS may independently be configured from the LO configuration for LP-WUS MOs. For example, a base station may transmit information associated with time domain resources for A-SS to a UE. The information associated with time domain resources for A-SS may include a time duration for the A-SS and a starting symbol of the A-SS. A time duration for A-SS may be configured or predefined. Different time durations for A-SS may be configured or predefined for different values of M (e.g., the number of OOK symbols per OFDM symbol for A-SS) . The information associated with time domain resources for A-SS may optionally include a slot offset for A-SS with respect to either the reference point or the first LP-WUS MO in each beam. In some implementations, if an A-SS is configured with respect to the first LP-WUS MO in a beam, common parameters for A-SS may be configured for all beams within a LO. In other implementations, alternatively, different parameters for A-SS may be configured for different beams.
[0123] FIGs. 7A-7I illustrate an example scheme 700 for wake-up indications associated with LO to PO mapping, according to some implementations. For clarity of presentation, the example scheme 700 is described in the context of the preceding figures. The example scheme 700 of FIGs. 7A-7I may support one-to-multiple mapping between LO and PO. In FIG. 7A, UEs that monitor PO 1 and PO 2 monitor one LO that includes LP-WUS MO 1 to LP-WUS MO M.
[0124] In some implementations, UEs that monitor the same PO may be divided into multiple subgroups. In such implementations, a LP-WUS may provide wake-up indications for the multiple subgroups. As such, a UE that belongs to one of the multiple subgroups may receive the wake-up indication corresponding to the subgroup by monitoring the LP-WUS.
[0125] Some aspects of the present disclosure relate to wake-up indications for multiple POs mapped to the same LO. In some implementations, a UE (e.g., the UE 102) may be configured with wake-up indications for multiple POs mapped to the same LO. For example, a base station (e.g., the base station 104) may transmit to the UE a LP-WUS that includes information associated with wake-up indications for multiple POs mapped to the same LO. As such, the UE may receive the information associated with wake-up indications by monitoring LP-WUS MOs within the LO. The UE may then monitor one PO, which corresponds to the UE, of the multiple POs mapped to the LO, based on the information associated with wake-up indications.
[0126] In some implementations, a wake-up indication for each PO may be represented by a bitmap, and a LP-WUS may carry the concatenation of more than one bitmap that represents wake-up indications for the multiple POs, as shown in FIG. 7B. In such implementations, the information associated with wake-up indications for multiple POs may include the concatenation of more than one bitmap, each of which corresponds to each PO. The length of each bitmap may be determined by the number of subgroups per PO. Each bit field of the bitmap may correspond to one subgroup in each PO. The number of information bits of the LP-WUS may be calculated by multiplying the number of POs mapped to the same LO by the number of subgroups per PO. For example, if one LO maps to two POs, and each PO is divided into 8 subgroups, the number of information bits of LP-WUS may be 16 bits (e.g., 8 bits +8 bits) .
[0127] In some implementations, a wake-up indication for each PO may be represented by one codepoint, and a LP-WUS may carry the concatenation of more than one codepoint that represents wake-up indications for the multiple POs, as shown in FIG. 7C. In such implementations, the information associated with wake-up indications for multiple POs may include the concatenation of more than one codepoint, each of which corresponds to each PO.
[0128] In some implementations, one codepoint may map to one or more subgroups for each PO. The mapping relationship between one codepoint and one or more subgroups for each PO may be pre-defined or configured. In such implementations, a wake-up indication for each PO may be represented by a set of codepoints. For example, if each PO is divided into multiple subgroups, one codepoint may indicate each subgroup in the PO, one codepoint may indicate all subgroups in the PO, and additional codepoints may indicate a set of two subgroups or a set of three subgroups in the PO.
[0129] In some implementations, a wake-up indication for each PO may be represented by multiple (e.g., two) codepoints, and a LP-WUS may carry codepoints for all multiple POs, each of which corresponds to the multiple codepoints, as shown in FIG. 7D. In this scenario, the number of codepoints carried in a LP-WUS may be informed (e.g., configured) to a UE such that the UE can determine the number of information bits of the LP-WUS and may not be blind to the detection of the LP-WUS.
[0130] In some implementations, a wake-up indication for each PO may be represented by a bitmap, and a LP-WUS may carry one index of a PO (hereinafter, “PO index” ) and one bitmap that corresponds to the PO, as shown in FIG. 7E. Each bit field of the bitmap may correspond to one subgroup in the PO. In this scenario, multiple LP-WUSs need to be transmitted for more than one wake-up indication for multiple POs. Accordingly, multiple LP-WUS MOs may be configured for each beam such that the wake-up indications for multiple POs can be transmitted over the multiple LP-WUS MOs.
[0131] In some implementations, a wake-up indication for each PO may be represented by one codepoint, and a LP-WUS may carry one PO index and one codepoint that corresponds to the PO, as shown in FIG. 7F. In this scenario, multiple LP-WUSs need to be transmitted for more than one wake-up indication for multiple POs. Accordingly, multiple LP-WUS MOs may be configured for each beam such that the wake-up indications for multiple POs can be transmitted over the multiple LP-WUS MOs. In some implementations, one codepoint may map to one or more subgroups in a PO. The mapping relationship between one codepoint and one or more subgroups in a PO may be pre-defined or configured. In such implementations, a wake-up indication for each PO may be represented by a set of codepoints. For example, if each PO is divided into multiple subgroups, each of more than one codepoint may indicate each subgroup in the PO, one codepoint may indicate all subgroups in the PO, and additional codepoints may indicate a set of two subgroups or a set of three subgroups in the PO.
[0132] In some implementations, a wake-up indication for each PO may be represented by multiple (e.g., two) codepoints, and a LP-WUS may carry one PO index and the multiple codepoints that correspond to the PO, as shown in FIG. 7G. In this scenario, the number of codepoints carried in a LP-WUS may be informed (e.g., configured) to a UE such that the UE can determine the number of information bits of the LP-WUS.
[0133] In some implementations, a LP-WUS may carry multiple pairs of PO index and codepoint that correspond to the indicated one or more POs, as shown in FIG. 7H. In this scenario, as shown in FIG. 7H, assuming two pairs of PO index and codepoint, PO index 1 and PO index 2 may indicate the same PO or different POs, depending on the need, such that a base station can flexibly indicate one codepoint for each of the two POs or two codepoints for one PO.
[0134] In some implementations, subgroups are indexed across multiple POs, and a LP-WUS may carry one or more codepoints, as shown in FIG. 7I. For example, assuming N POs and K subgroups per PO, subgroups for PO 1 (e.g., the first PO of N POs) may be indexed from 0 to K-1, subgroups for PO n (e.g., the last PO of N POs) may be indexed (n-1) *K to n*K-1, and a total of N*K subgroups are given for N POs. In such implementations, one codepoint may map to one or more subgroups in the multiple POs, and the mapping relationship between one codepoint to one or more subgroups may be pre-defined or configured. For example, assuming N POs, K subgroups per PO, and (K+1) codepoints per PO, K codepoints may correspond to each of the K subgroups in PO n, the remaining codepoint may correspond to all the K subgroups in PO n, and a total of N* (K+1) codepoints are given for N POs. Furthermore, codepoints (n-1) * (K+1) to (n-1) * (K+1) +K-1 may correspond to each of the K subgroups in PO n, and codepoint (n-1) * (K+1) +K may correspond to all the K subgroups in PO n. For example, assuming 2 POs with 15 subgroups per PO, codepoints 0-15 are used for PO 1, and codepoints 16-31 are used for PO 2, with a total of 32 codepoints. In this scenario, the number of codepoints carried in a LP-WUS may be informed (e.g., configured) to a UE such that the UE can determine the number of information bits of the LP-WUS.
[0135] FIG. 8 illustrates a flowchart of an example method 800 for configurations for LP-WUS MOs within a LO, according to some implementations. For clarity of presentation, the example method 800 is described in the context of the preceding figures. For example, the method 800 can be performed by a UE (e.g., the UE 102) , or any suitable system, environment, software, hardware, or combination thereof. In some implementations, operations of the method 800 can be run in parallel, in combination, in loops, or in any order. The example method 800 shown in FIG. 8 can be modified or reconfigured to include additional, fewer, or different steps (not shown in FIG. 8) , which can be performed in the order shown or in a different order.
[0136] In the method 800, at 805, the UE receives configuration information associated with one or more LP-WUS MOs within a LO. In some implementations, the configuration information may comprise a first information associated with the one or more beams in which the one or more LP-WUSs are transmitted within the LO. The first information may comprise a bitmap indicating whether the one or more LP-WUSs are transmitted in each of the plurality of beams for transmitted SSBs. In such implementations, a length of the bitmap may be determined based on a number of the plurality of beams corresponding to SSBs. Each bit field of the bitmap may correspond to one particular beam of the plurality of beams. Different bit fields of the bitmap may correspond to different beams of the plurality of beams. A value of 1 for a bit field of the bitmap may indicate that one or more LP-WUSs are transmitted in the corresponding beam of the plurality of beams. A value of 0 for bit field of the bitmap may indicate that one or more LP-WUSs are not transmitted in the corresponding beam of the plurality of beams.
[0137] In some implementations, the second information may comprise information associated with a periodicity for the one or more LP-WUS MOs and information associated with one or more candidate starting symbol locations of LP-WUS MOs within a period determined by the periodicity. In such implementations, the second information may comprise an offset value indicating the first LP-WUS MO in the LO with respect to a reference point The reference point may be one of a PO or a PF plus a frame-level offset. In some implementations, the information associated with one or more candidate starting symbol locations of LP-WUS MOs within the period may comprise at least one of a set of starting symbol indices of LP-WUS MOs within the period, or a bitmap indicating the one or more starting symbols of LP-WUS MOs within the period.
[0138] In some implementations, the second information may comprise one or more of information associated with a periodicity for the one or more LP-WUS MOs, information associated with a set of slot offset values, or information associated with one or more starting symbols of LP-WUS MOs within a slot. In such implementations, the information associated with one or more starting symbols of the LP-WUS MOs within the slot may comprise one of a set of starting symbol indices of the LP-WUS MOs within the slot, or a bitmap indicating the one or more starting symbols of the LP-WUS MOs within the slot.
[0139] In some implementations, the configuration information may comprise information associated with frequency domain resources for the one or more LP-WUS MOs. The information associated frequency domain resources for the one or more LP-WUS MOs may indicate PRBs on which the one or more LP-WUSs are mapped.
[0140] In some implementations, the configuration information may comprise at least one of: information associated with an offset value for the one or more LP-WUS MOs with respect to a reference point, information associated with a number of subgroups per a PO, information associated with a number of information bits in each LP-WUS, information associated with a number of OOK symbols per an OFDM symbol for each LP-WUS, information associated with a time duration for each LP-WUS, information associated with a number of LP-WUS MOs per a beam, information associated with a number of LP-WUS MOs per a LO, or information associated with one or more root sequence indices and one or more cyclic shifts for generating one or more overlaid sequences for OOK ON symbols for the one or more LP-WUSs. The reference point may be represented as one of a PO or a PF.
[0141] At 810, the UE monitors one or more LP-WUSs based on the configuration information. In some implementations, monitoring the one or more LP-WUSs within the one or more LP-WUS MOs based on the configuration information may comprise determining, based on the configuration information, one or more beams in which the one or more LP-WUSs are transmitted within the LO among a plurality of beams corresponding to SSBs and monitoring the one or more LP-WUSs in the one or more beams within the LO. In some implementations, monitoring the one or more LP-WUSs within the one or more LP-WUS MOs based on the configuration information may comprise determining time domain resources for the one or more LP-WUS MOs based on the configuration information and monitoring the one or more LP-WUSs within the time domain resources for the one or more LP-WUS MOs within the LO. The configuration information may comprise a second information associated with the time domain resources for the one or more LP-WUS MOs.
[0142] In some implementations, the UE may determine invalid symbols for LP-WUS MOs based on a TDD pattern configured by a parameter tdd-UL-DL-ConfigurationCommon or a configured mask information, and may determine LP-WUS MOs that include the invalid symbols among the one or more LP-WUS MOs as invalid. In such implementations, monitoring one or more LP-WUSs based on the configuration information may comprise one of: monitoring the one or more LP-WUSs within LP-WUS MOs that are not determined as invalid, or monitoring the one or more LP-WUSs within the one or more LP-WUS MOs. The invalid symbols between starting symbol and last symbol of each LP-WUS MO may be skipped for monitoring the one or more LP-WUSs.
[0143] FIG. 9 illustrates a flowchart of an example method 900 for configurations for LP-SSs, according to some implementations. For clarity of presentation, the example method 900 is described in the context of the preceding figures. For example, the method 900 can be performed by a UE (e.g., the UE 102) , or any suitable system, environment, software, hardware, or combination thereof. In some implementations, operations of the method 900 can be run in parallel, in combination, in loops, or in any order. The example method 900 shown in FIG. 9 can be modified or reconfigured to include additional, fewer, or different steps (not shown in FIG. 9) , which can be performed in the order shown or in a different order.
[0144] In the method 900, at 905, the UE receives configuration information associated with one or more LP-SSs. In some implementations, the configuration information may comprise information associated with a periodicity of transmission of the one or more LP-SSs. In such implementations, the configuration information may comprise an offset value for transmission of the one or more LP-SSs with respect to a reference point.
[0145] In some implementations, the configuration information may comprise a first information associated with the one or more beams in which the one or more LP-SSs are transmitted within the period. In such implementations, the first information may comprise a bitmap indicating whether the one or more LP-SSs are transmitted in each of the plurality of beams for transmitted SSBs. In such implementations, a length of the bitmap may be determined based on a number of the plurality of beams for transmitted SSBs, and each bit field of the bitmap may correspond to one beam with an index value among the plurality of beams for transmitted SSBs. In such implementations, a value of 1 for the each bit field may indicate that the one or more LP-SSs are transmitted in the one beam with the index value, and a value of 0 for the each bit field may indicate that the one or more LP-SSs are not transmitted in the one beam with the index value.
[0146] In some implementations, the configuration information may comprise information associated with N pairs of an offset value and a starting symbol index of the N transmission occasions. In some implementations, the configuration information may comprise information associated with one or more starting symbols of transmission occasions for the one or more LP-SSs within a slot. In such implementations, the configuration information may comprise information associated with a set of slot offset values for the transmission occasions for the one or more LP-SSs within the slot. In some implementations, the configuration information may comprise information associated with N starting symbol indices of the N transmission occasions with respect to a reference point, the reference point being a symbol index with a value of 0.
[0147] In some implementations, the configuration information may comprise information associated with frequency domain resources for the one or more LP-SSs. In such implementations, the information associated frequency domain resources for the one or more LP-SSs may indicate PRBs on which the one or more LP-SSs are mapped.
[0148] In some implementations, the configuration information may comprise information associated with a number of OOK symbols per an OFDM symbol for each LP-SS. In some implementations, the configuration information may comprise information associated with a time duration for each LP-SS. In such implementations, the information associated with a time duration for each LP-SS may be represented based on a length of binary sequence used for each LP-SS. The information associated with a time duration for each LP-SS may be represented by a number of OFDM symbols. In some implementations, the configuration information may comprise information associated with a binary sequence used for each LP-SS. In such implementations, the information associated with a binary sequence used for each LP-SS may comprise a pointer to one of pre-defined sequences. In some implementations, the configurations information may comprise information associated with one or more root sequence indices and one or more cyclic shifts for generating one or more overlaid sequences for OOK ON symbols for the one or more LP-SSs.
[0149] At 910, the UE monitors the one or more LP-SSs based on the configuration information. In some implementations, the UE may determine one or more beams in which the one or more LP-SSs are transmitted within a period among a plurality of beams for transmitted SSBs based on the configuration information and may monitor the one or more LP-SSs in the one or more beams within the period. The period may be determined based on the information associated with the periodicity of transmission of the one or more LP-SSs.
[0150] In some implementations, the UE may determine N transmission occasions for the one or more LP-SSs within a period based on the configuration information and may monitor the one or more LP-SSs within the N transmission occasions within the period. N may be determined based on a number of beams in which the one or more LP-SSs are transmitted within the period and the period may be determined based on the information associated with the periodicity of transmission of the one or more LP-SSs.
[0151] In some implementations, the UE may determine invalid symbols within the N transmission occasions for LP-SS based on a TDD pattern configured by a parameter tdd-UL-DL-ConfigurationCommon or a configured mask information. In such implementations, the UE may determine transmission occasions that include the invalid symbols among the N transmission occasions as invalid. In such implementations, the UE may monitor the one or more LP-SSs within N transmission occasions that are not determined as invalid. In some implementations, the UE may monitor the one or more LP-SSs within the N transmission occasions. The invalid symbols between starting symbol and last symbol of each of the N transmission occasions may be skipped for monitoring the one or more LP-SSs.
[0152] FIG. 10 illustrates a flowchart of an example method 1000 for configurations for A-SSs, according to some implementations. For clarity of presentation, the example method 1000 is described in the context of the preceding figures. For example, the method 1000 can be performed by a UE (e.g., the UE 102) , or any suitable system, environment, software, hardware, or combination thereof. In some implementations, operations of the method 1000 can be run in parallel, in combination, in loops, or in any order. The example method 1000 shown in FIG. 10 can be modified or reconfigured to include additional, fewer, or different steps (not shown in FIG. 10) , which can be performed in the order shown or in a different order.
[0153] In the method 1000, at 1005, the UE receives configuration information associated with one or more A-SSs. In some implementations, the configuration information may comprise information associated with a time duration for a LP-WUS MO and the time duration for the LP-WUS MO may comprise a time duration for each LP-WUS Moan LP-WUS and a time duration for transmission occasion for each A-SS.
[0154] In some implementations, the configuration information may comprise information associated with a time duration for each A-SS. The time duration for each A-SS may be based on a number of OOK symbols per an OFDM symbol for each A-SS. In some implementations, the configuration information may comprise information associated with a starting symbol of a transmission occasion for each A-SS in the beam. In such implementations, the configuration information may comprise information associated with a slot offset for the transmission occasion for each A-SS with respect to a reference point or the first LP-WUS MO of the one or more LP-WUS MOs in the beam. In some implementations, based on that the slot offset is with respect to the first LP-WUS MO of the one or more LP-WUS MOs in the beam, common parameters associated with the starting symbol and the slot offset may be configured for the one or more A-SSs in all beams. In some implementations, different parameters associated with the starting symbol and the slot offset may be configured for the one or more A-SSs in different beams.
[0155] At 1010, the UE monitors the one or more A-SSs based on the configuration information. In some implementations, each of the one or more A-SSs may be transmitted before each LP-WUS MO. In some implementations, each A-SSs may be transmitted before a first LP-WUS MO of one or more LP-WUS MOs in a beam.
[0156] FIG. 11 illustrates a flowchart of an example method 1100 for configurations for wake-up indications associated with LO to PO mapping. For clarity of presentation, the example method 1100 is described in the context of the preceding figures. For example, the method 1100 can be performed by a UE (e.g., the UE 102) , or any suitable system, environment, software, hardware, or combination thereof. In some implementations, operations of the method 1100 can be run in parallel, in combination, in loops, or in any order. The example method 1100 shown in FIG. 11 can be modified or reconfigured to include additional, fewer, or different steps (not shown in FIG. 11) , which can be performed in the order shown or in a different order.
[0157] In the method 1100, at 1105, the UE monitors one or more LP-WUS MOs within a LO.
[0158] At 1110, the UE receives a LP-WUS including information associated with wake-up indications for one or more POs mapped to the LO. In some implementations, the information associated with the wake-up indications may comprise a concatenation of more than one bitmap for the one or more POs. Each bitmap may represent a wake-up indication for each PO. Each bit field of each bitmap may correspond to one subgroup of each PO.
[0159] In some implementations, the information associated with the wake-up indications may comprise a concatenation of more than one codepoint for the one or more POs. Each codepoint may represent a wake-up indication for each PO. Each codepoint may correspond to one or more subgroups of each PO.
[0160] In some implementations, the information associated with the wake-up indications may comprise a concatenation of more than one set of codepoints. Each set of codepoints may comprise more than one codepoint. Each set of codepoints may represents a wake-up indication for each PO.
[0161] In some implementations, the information associated with the wake-up indications may comprise an index of a PO of the one or more POs and a bitmap for the PO. The bitmap may represent a wake-up indication for the PO. Each bit field of the bitmap may correspond to one subgroup of the PO.
[0162] In some implementations, the information associated with the wake-up indications may comprise an index of a PO of the one or more POs and a codepoint for the PO. The codepoint may represent a wake-up indication for the PO. The codepoint may correspond to one or more subgroups of the PO.
[0163] In some implementations, the information associated with the wake-up indications may comprise an index of a PO of the one or more POs and a set of codepoints for the PO. The set of codepoints may comprise more than one codepoint. The set of codepoints may represent a wake-up indication for the PO.
[0164] In some implementations, the information associated with the wake-up indications may comprise more than one pair of one index and one codepoint. In some implementations, based on that more than one index indicates a same PO, more than one codepoint may represent a wake-up indication for the same PO. In some implementations, based on that more than one index indicates different POs, more than one codepoint may represent wake-up indications for the different POs.
[0165] In some implementations, the information associated with the wake-up indications may comprise one or more codepoints for the one or more POs. A plurality of subgroups may be indexed across the one or more POs. Each codepoint may represent a wake-up indication for one or more subgroups among the plurality of subgroups.
[0166] At 1115, the UE monitors one of the one or more POs based on the information associated with the wake-up indications. In some implementations, the one of the one or more POs may correspond to the UE.
[0167] FIG. 12 illustrates an example UE 1200, according to some implementations. The UE 1200 may be similar to and substantially interchangeable with UE 102 of FIG. 1. The UE 1200 may include any mobile or non-mobile computing device, such as, for example, a mobile phone, computer, tablet, industrial wireless sensors, video device (for example, cameras, video cameras, and the like) , wearable devices (for example, a smart watch) , relaxed internet-of-things (IoT) devices, etc.
[0168] The UE 1200 may include any / all of processor 1202, RF interface circuitry 1204, memory / storage 1206, user interface 1208, sensors 1210, driver circuitry 1212, power management integrated circuit (PMIC) 1214, one or more antenna (s) 1216, and battery 1218. The components of the UE 1200 may be implemented as integrated circuits (ICs) , portions thereof, discrete electronic devices, or other modules, logic, hardware, software, firmware, or a combination thereof. The block diagram of FIG. 12 is intended to show a high-level view of some of the components of the UE 1200. However, some of the components shown may be omitted, additional components may be present, and a different arrangement of the components shown may occur in other implementations.
[0169] The components of the UE 1200 may be coupled with various other components over one or more interconnects 1220, which may represent any type of interface, input / output, bus (local, system, or expansion) , transmission line, trace, or optical connection that allows various circuit components (on common or different chips or chipsets) to interact with one another.
[0170] The processor 1202 may include one or more processors. For example, the processor 1202 may include processor circuitry such as, for example, baseband (BB) processor circuitry 1222A, central processor unit (CPU) circuitry 1222B, and graphics processor unit (GPU) circuitry 1222C. The processor 1202 may include any type of circuitry or processor circuitry that executes or otherwise operates computer-executable instructions, such as program code, software modules, or functional processes from memory / storage 1206 to cause the UE 1200 to perform operations as described herein.
[0171] In some implementations, the baseband processor circuitry 1222A may access a communication protocol stack 1224 in the memory / storage 1206 to communicate over a 3GPP compatible network. In general, the baseband processor circuitry 1222A may access the communication protocol stack to: perform user plane functions at a physical (PHY) layer, medium access control (MAC) layer, radio link control (RLC) layer, packet data convergence protocol (PDCP) layer, service data adaptation protocol (SDAP) layer, and / or protocol data unit (PDU) layer; and perform control plane functions at a PHY layer, MAC layer, RLC layer, PDCP layer, RRC layer, and / or non-access stratum (NAS) layer. In some implementations, the PHY layer operations may additionally / alternatively be performed by components of the RF interface circuitry 1204. The baseband processor circuitry 1222A may generate or process baseband signals or waveforms that carry information in 3GPP-compatible networks. In some implementations, waveforms for NR may implement cyclic prefix-orthogonal frequency division multiplexing (CP-OFDM) in the uplink or downlink, and discrete Fourier transform-spread-orthogonal frequency division multiplexing (DFT-S-OFDM) in the uplink.
[0172] The memory / storage 1206 may include one or more non-transitory, computer-readable media that includes instructions (for example, communication protocol stack 1224) that can be executed by the processor 1202 to cause the UE 1200 to perform various operations described herein. The memory / storage 1206 include any type of volatile or non-volatile memory that may be distributed throughout the UE 1200. In some implementations, some of the memory / storage 1206 may be located on the processor 1202 itself (for example, Layer 1 “L1” and Layer 2 “L2” caches) , while other memory / storage 1206 is external to the processor 1202 but accessible thereto via a memory interface. The memory / storage 1206 may include any suitable volatile or non-volatile memory such as, but not limited to, dynamic random access memory (DRAM) , static random access memory (SRAM) , erasable programmable read-only memory (EPROM) , electrically erasable programmable read-only memory (EEPROM) , Flash memory, solid-state memory, or any other type of memory device technology.
[0173] The RF interface circuitry 1204 may include transceiver circuitry and radio frequency front end module (RFEM) that allows the UE 1200 to communicate with other devices over a radio access network. The RF interface circuitry 1204 may include various elements arranged in transmit or receive paths. These elements may include, for example, switches, mixers, amplifiers, filters, synthesizer circuitry, control circuitry, etc.
[0174] In the receive path, the RFEM may receive a radiated signal from an air interface via antenna (s) 1216 and proceed to filter and amplify (with a low-noise amplifier) the signal. The signal may be provided to a receiver of the transceiver that downconverts the RF signal into a baseband signal that is provided to the baseband processor.
[0175] In the transmit path, the transmitter of the transceiver up-converts the baseband signal received from the baseband processor and provides the RF signal to the RFEM. The RFEM may amplify the RF signal through a power amplifier prior to the signal being radiated across the air interface via the antenna (s) 1216. In various implementations, the RF interface circuitry 1204 may be configured to transmit / receive signals in a manner compatible with NR access technologies.
[0176] The antenna (s) 1216 may include one or more antenna elements to convert electrical signals into radio waves to travel through the air and to convert received radio waves over the air into electrical signals. In some implementations, the antenna elements may be arranged into one or more antenna panels. The antenna (s) 1216 may have antenna panels that are omnidirectional, directional, or a combination thereof, to enable beamforming and multiple input, multiple output communications. The antenna (s) 1216 may include any / all of microstrip antennas, printed antennas fabricated on the surface of one or more printed circuit boards, patch antennas, phased array antennas, etc. The antenna (s) 1216 may have one or more panels designed for one or more specific frequency bands, such as bands in frequency range 1 (FR1) or frequency range 2 (FR2) .
[0177] The user interface 1208 includes various input / output (I / O) devices designed to enable user interaction with the UE 1200. The user interface 1208 includes input device circuitry and output device circuitry. Input device circuitry includes any physical or virtual means for accepting an input including, inter alia, one or more physical or virtual buttons (for example, a reset button) , a physical keyboard, keypad, mouse, touchpad, touchscreen, microphones, scanner, headset, or the like. The output device circuitry includes any physical or virtual means for showing information or otherwise conveying information, such as sensor readings, actuator position (s) , or other like information. Output device circuitry may include any number or combinations of audio or visual display, including, inter alia, one or more simple visual outputs / indicators (for example, binary status indicators such as light emitting diodes “LEDs” and multi-character visual outputs) , or more complex outputs such as display devices or touchscreens (for example, liquid crystal displays “LCDs, ” LED displays, quantum dot displays, projectors) , with the output of characters, graphics, multimedia objects, and the like being generated or produced from the operation of the UE 1200.
[0178] The sensors 1210 may include devices, modules, or subsystems whose purpose is to detect events or changes in its environment and send the information (sensor data) about the detected events to some other device, module, subsystem, etc. Examples of such sensors include, inter alia, inertia measurement units including accelerometers, gyroscopes, or magnetometers; microelectromechanical systems or nanoelectromechanical systems including 3-axis accelerometers, 3-axis gyroscopes, or magnetometers; level sensors; temperature sensors (for example, thermistors) ; pressure sensors; image capture devices (for example, cameras or lensless apertures) ; light detection and ranging sensors; proximity sensors (for example, infrared radiation detector and the like) ; depth sensors; ambient light sensors; ultrasonic transceivers; and microphones or other like audio capture devices.
[0179] The driver circuitry 1212 may include software and hardware elements that operate to control particular devices that are embedded in the UE 1200, attached to the UE 1200, or otherwise communicatively coupled with the UE 1200. The driver circuitry 1212 may include individual drivers allowing other components to interact with or control various I / O devices that may be present within, or connected to, the UE 1200. For example, driver circuitry 1212 may include a display driver to control and allow access to a display device, a touchscreen driver to control and allow access to a touchscreen interface, sensor drivers to obtain sensor readings of sensors 1210 and control and allow access to sensors 1210, drivers to obtain actuator positions of electro-mechanic components or control and allow access to the electro-mechanic components, a camera driver to control and allow access to an embedded image capture device, audio drivers to control and allow access to one or more audio devices.
[0180] The PMIC 1214 may manage power provided to various components of the UE 1200. In particular, with respect to the processor 1202, the PMIC 1214 may control power-source selection, voltage scaling, battery charging, or direct current (DC) -to-DC conversion.
[0181] In some implementations, the PMIC 1214 may control, or otherwise be part of, various power saving mechanisms of the UE 1200. A battery 1218 may power the UE 1200, although in some examples the UE 1200 may be mounted deployed in a fixed location, and may have a power supply coupled to an electrical grid. The battery 1218 may be a lithium ion battery, a metal-air battery, such as a zinc-air battery, an aluminum-air battery, a lithium-air battery, and the like. In some implementations, such as in vehicle-based applications, the battery 1218 may be a lead-acid automotive battery.
[0182] FIG. 13 illustrates an example access node 1300 (e.g., a base station or gNB) , according to some implementations. The access node 1300 may be similar to and substantially interchangeable with base station 104. The access node 1300 may include one or more of processor 1302, RF interface circuitry 1304, core network (CN) interface circuitry 1306, memory / storage circuitry 1308, and one or more antenna (s) 1310. The processor 1302 may include any type of circuitry or processor circuitry that executes or otherwise operates computer-executable instructions, such as program code, software modules, or functional processes from memory / storage circuitry 1308 to cause the access node 1300 to perform operations as described herein.
[0183] The components of the access node 1300 may be coupled with various other components over one or more interconnects 1312. The processor 1302, RF interface circuitry 1304, memory / storage circuitry 1308 (including communication protocol stack 1314) , antenna (s) 1310, and interconnects 1312 may be similar to like-named elements shown and described with respect to FIG. 12. For example, the processor 1302 may include processor circuitry such as, for example, BB processor circuitry 1316A, CPU circuitry 1316B, and GPU circuitry 1316C.
[0184] The CN interface circuitry 1306 may provide connectivity to a core network, for example, a 5G core (5GC) network using a 5GC-compatible network interface protocol such as carrier Ethernet protocols, or some other suitable protocol. Network connectivity may be provided to / from the access node 1300 via a fiber optic or wireless backhaul. The CN interface circuitry 1306 may include one or more dedicated processors or field-programmable gate arrays (FPGA) to communicate using one or more of the aforementioned protocols. In some implementations, the CN interface circuitry 1306 may include multiple controllers to provide connectivity to other networks using the same or different protocols.
[0185] As used herein, the terms “access node, ” “access point, ” or the like may describe equipment that provides the radio baseband functions for data and / or voice connectivity between a network and one or more users. These access nodes can be referred to as base stations, gNBs, RAN nodes, eNBs, NodeBs, roadside units (RSU) , transmit-receive points (TRP) , and so forth, and can include ground stations (e.g., terrestrial access points) or satellite stations providing coverage within a geographic area (e.g., a cell) . As used herein, the term “NG RAN node” or the like may refer to an access node 1300 that operates in an NR or 5G system (for example, a gNB) , and the term “E-UTRAN node” or the like may refer to an access node 1300 that operates in an LTE or 4G system (e.g., an eNB) . According to various implementations, the access node 1300 may be implemented as one or more of a dedicated physical device such as a macrocell base station, and / or a low power base station for providing femtocells, picocells or other like cells having smaller coverage areas, smaller user capacity, or higher bandwidth compared to macrocells.
[0186] In some implementations, all or parts of the access node 1300 may be implemented as one or more software entities running on server computers as part of a virtual network, which may be referred to as a cloud radio access network (CRAN) and / or a virtual baseband unit pool (vBBUP) . In vehicle-to-everything (V2X) scenarios, the access node 1300 may be or act as an RSU. The term RSU refers to any transportation infrastructure entity used for V2X communications. An RSU may be implemented in or by a suitable RAN node or a stationary (or relatively stationary) UE, where an RSU implemented in or by a UE may be referred to as a “UE-type RSU, ” an RSU implemented in or by an eNB may be referred to as an “eNB-type RSU, ” an RSU implemented in or by a gNB may be referred to as a “gNB-type RSU, ” and the like.
[0187] Various components may be described as performing a task or tasks, for convenience in the description. Such descriptions should be interpreted as including the phrase “configured to. ” Reciting a component that is configured to perform one or more tasks is expressly intended not to invoke 35 U.S.C. § 112 (f) interpretation for that component.
[0188] For one or more embodiments, at least one of the components set forth in one or more of the preceding figures may be configured to perform one or more operations, techniques, processes, or methods as set forth in the example section below. For example, the baseband circuitry as described above in connection with one or more of the preceding figures may be configured to operate in accordance with one or more of the examples set forth below. For another example, circuitry associated with a UE, base station, network element, or the like, as described above in connection with one or more of the preceding figures may be configured to operate in accordance with one or more of the examples set forth below.
[0189] Example 1 is a method including: receiving configuration information associated with one or more LP-WUS MOs within a LO and monitoring one or more LP-WUSs based on the configuration information.
[0190] Example 2 includes the method of example 1, where monitoring the one or more LP-WUSs within the one or more LP-WUS MOs based on the configuration information comprises determining, based on the configuration information, one or more beams in which the one or more LP-WUSs are transmitted within the LO among a plurality of beams corresponding to SSBs and monitoring the one or more LP-WUSs in the one or more beams within the LO.
[0191] Example 3 includes the method of example 2, where the configuration information comprises a first information associated with the one or more beams in which the one or more LP-WUSs are transmitted within the LO.
[0192] Example 4 includes the method of example 3, where the first information comprises a bitmap indicating whether the one or more LP-WUSs are transmitted in each of the plurality of beams for transmitted SSBs.
[0193] Example 5 includes the method of example 4, where a length of the bitmap is determined based on a number of the plurality of beams corresponding to SSBs, and each bit field of the bitmap corresponds to one particular beam of the plurality of beams and different bit fields of the bitmap corresponding to different beams of the plurality of beams.
[0194] Example 6 includes the method of example 5, where a value of 1 for a bit field of the bitmap indicates that one or more LP-WUSs are transmitted in the corresponding beam of the plurality of beams, and a value of 0 for bit field of the bitmap indicates that one or more LP-WUSs are not transmitted in the corresponding beam of the plurality of beams.
[0195] Example 7 includes the method of example 1, where monitoring the one or more LP-WUSs within the one or more LP-WUS MOs based on the configuration information comprises determining time domain resources for the one or more LP-WUS MOs based on the configuration information and monitoring the one or more LP-WUSs within the time domain resources for the one or more LP-WUS MOs within the LO.
[0196] Example 8 includes the method of example 7, where the configuration information comprises a second information associated with the time domain resources for the one or more LP-WUS MOs.
[0197] Example 9 includes the method of example 8, where the second information comprises information associated with a periodicity for LP-WUS MOs and information associated with one or more candidate starting symbol locations of LP-WUS MOs within a period determined by the periodicity.
[0198] Example 10 includes the method of example 9, where the second information comprises an offset value indicating the first LP-WUS MO in the LO with respect to a reference point, the reference point being one of a PO or a PF plus a frame-level offset.
[0199] Example 11 includes the method of example 9, where the information associated with candidate starting symbol locations of the LP-WUS MOs within the period comprises a set of starting symbol indices of the LP-WUS MOs within the period.
[0200] Example 12 includes the method of example 9, where the information associated with the candidate starting symbol locations of the LP-WUS MOs within the period includes a bitmap indicating the one or more starting symbols of the LP-WUS MOs within the period.
[0201] Example 13 includes the method of example 8, where the second information comprises one or more of information associated with a periodicity for the one or more LP-WUS MOs, information associated with a set of slot offset values, or information associated with one or more starting symbols of LP-WUS MOs within a slot.
[0202] Example 14 includes the method of example 8, where the second information comprises information associated with one or more starting symbols of LP-WUS MOs within a slot.
[0203] Example 15 includes the method of example 14, where the second information comprises a set of slot offset values with respect to a reference point.
[0204] Example 16 includes the method of example 14, where the information associated with one or more starting symbols of the LP-WUS MOs within the slot comprises a set of starting symbol indices of the LP-WUS MOs within the slot.
[0205] Example 17 includes the method of example 14, where the information associated with one or more starting symbols of the LP-WUS MOs within the slot comprises a bitmap indicating the one or more starting symbols of the LP-WUS MOs within the slot.
[0206] Example 18 includes the method of example 1, where the configuration information comprises information associated with frequency domain resources for the one or more LP-WUS MOs.
[0207] Example 19 includes the method of example 18, where the information associated frequency domain resources for the one or more LP-WUS MOs indicates PRBs on which the one or more LP-WUSs are mapped.
[0208] Example 20 includes the method of example 1, where the configuration information comprises information associated with a number of POs mapped to the LO.
[0209] Example 21 includes the method of example 1, where the configuration information comprises information associated with an offset value for the one or more LP-WUS MOs with respect to a reference point, and the reference point is represented as one of a PO or a PF.
[0210] Example 22 includes the method of example 1, where the configuration information comprises information associated with a number of subgroups per a PO.
[0211] Example 23 includes the method of example 1, where the configuration information comprises information associated with a number of information bits in each LP-WUS.
[0212] Example 24 includes the method of example 1, where the configuration information comprises information associated with a number of on-off keying (OOK) symbols per an orthogonal frequency-division multiplexing (OFDM) symbol for each LP-WUS.
[0213] Example 25 includes the method of example 1, where the configuration information comprises information associated with a time duration for each LP-WUS.
[0214] Example 26 includes the method of example 1, where the configuration information comprises at least one of information associated with a number of LP-WUS MOs per a beam or information associated with a number of LP-WUS MOs per a LO.
[0215] Example 27 includes the method of example 1, where the configurations information comprises information associated with one or more root sequence indices and one or more cyclic shifts for generating one or more overlaid sequences for OOK ON symbols for the one or more LP-WUSs.
[0216] Example 28 includes the method of example 1, further including determining invalid symbols for LP-WUS MOs based on a TDD pattern configured by a parameter tdd-UL-DL-ConfigurationCommon or a configured mask information.
[0217] Example 29 includes the method of example 28, further including determining LP-WUS MOs that include the invalid symbols among the one or more LP-WUS MOs as invalid.
[0218] Example 30 includes the method of example 29, where monitoring one or more LP-WUSs based on the configuration information comprises monitoring the one or more LP-WUSs within LP-WUS MOs that are not determined as invalid.
[0219] Example 31 includes the method of example 28, where monitoring one or more LP-WUSs based on the configuration information comprises monitoring the one or more LP-WUSs within the one or more LP-WUS MOs, and the invalid symbols between starting symbol and last symbol of each LP-WUS MO are skipped for monitoring the one or more LP-WUSs.
[0220] Example 32 is a method including: receiving configuration information associated with one or more LP-SSs and monitoring the one or more LP-SSs based on the configuration information.
[0221] Example 33 includes the method of example 32, where the configuration information comprises information associated with a periodicity of transmission of the one or more LP-SSs.
[0222] Example 34 includes the method of example 33, where the configuration information comprises an offset value for transmission of the one or more LP-SSs with respect to a reference point.
[0223] Example 35 includes the method of example 33, where monitoring the one or more LP-SSs based on the configuration information comprises determining one or more beams in which the one or more LP-SSs are transmitted within a period among a plurality of beams for transmitted SSBs based on the configuration information, and the period is determined based on the information associated with the periodicity of transmission of the one or more LP-SSs and monitoring the one or more LP-SSs in the one or more beams within the period.
[0224] Example 36 includes the method of example 35, where the configuration information comprises a first information associated with the one or more beams in which the one or more LP-SSs are transmitted within the period.
[0225] Example 37 includes the method of example 36, where the first information comprises a bitmap indicating whether the one or more LP-SSs are transmitted in each of the plurality of beams for transmitted SSBs.
[0226] Example 38 includes the method of example 37, where a length of the bitmap is determined based on a number of the plurality of beams for transmitted SSBs, and each bit field of the bitmap corresponds to one beam with an index value among the plurality of beams for transmitted SSBs.
[0227] Example 39 includes the method of example 38, where a value of 1 for the each bit field indicates that the one or more LP-SSs are transmitted in the one beam with the index value, and a value of 0 for the each bit field indicates that the one or more LP-SSs are not transmitted in the one beam with the index value.
[0228] Example 40 includes the method of example 33, where monitoring the one or more LP-SSs based on the configuration information comprises determining N transmission occasions for the one or more LP-SSs within a period based on the configuration information, N is determined based on a number of beams in which the one or more LP-SSs are transmitted within the period and the period is determined based on the information associated with the periodicity of transmission of the one or more LP-SSs and monitoring the one or more LP-SSs within the N transmission occasions within the period.
[0229] Example 41 includes the method of example 40, where the configuration information comprises information associated with N pairs of an offset value and a starting symbol index of the N transmission occasions.
[0230] Example 42 includes the method of example 40, where the configuration information comprises information associated with one or more starting symbols of transmission occasions for the one or more LP-SSs within a slot.
[0231] Example 43 includes the method of example 42, where the configuration information comprises information associated with a set of slot offset values for the transmission occasions for the one or more LP-SSs within the slot.
[0232] Example 44 includes the method of example 40, where the configuration information comprises information associated with N starting symbol indices of the N transmission occasions with respect to a reference point, the reference point being a symbol index with a value of 0.
[0233] Example 45 includes the method of example 40, further including determining invalid symbols for LP-SS based on a TDD pattern configured by a parameter tdd-UL-DL-ConfigurationCommon or a configured mask information.
[0234] Example 46 includes the method of example 45, further including determining transmission occasions that include the invalid symbols for LP-SSas invalid.
[0235] Example 47 includes the method of example 46, where monitoring the one or more LP-SSs comprises monitoring the one or more LP-SSs within N transmission occasions that are not determined as invalid.
[0236] Example 48 includes the method of example 40, where monitoring the one or more LP-SSs comprises monitoring the one or more LP-SSs within the N transmission occasions, and the invalid symbols between starting symbol and last symbol of each of the N transmission occasions are skipped for monitoring the one or more LP-SSs.
[0237] Example 49 includes the method of example 32, where the configuration information comprises information associated with frequency domain resources for the one or more LP-SSs.
[0238] Example 50 includes the method of example 32, where the information associated frequency domain resources for the one or more LP-SSs indicates PRBs on which the one or more LP-SSs are mapped.
[0239] Example 51 includes the method of example 32, where the configuration information comprises information associated with a number of OOK symbols per an OFDM symbol for each LP-SS.
[0240] Example 52 includes the method of example 32, where the configuration information comprises information associated with a time duration for each LP-SS.
[0241] Example 53 includes the method of example 52, where the information associated with a time duration for each LP-SS is represented based on a length of binary sequence used for each LP-SS.
[0242] Example 54 includes the method of example 52, where the information associated with a time duration for each LP-SS is represented by a number of OFDM symbols.
[0243] Example 55 includes the method of example 32, where the configuration information comprises information associated with a binary sequence used for each LP-SS.
[0244] Example 56 includes the method of example 55, where the information associated with a binary sequence used for each LP-SS comprises a pointer to one of pre-defined sequences.
[0245] Example 57 includes the method of example 32, where the configurations information comprises information associated with one or more root sequence indices and one or more cyclic shifts for generating one or more overlaid sequences for OOK ON symbols for the one or more LP-SSs.
[0246] Example 58 is a method including: receiving configuration information associated with one or more additional synchronization signals (A-SSs) and monitoring the one or more A-SSs based on the configuration information.
[0247] Example 59 includes the method of example 58, where each of the one or more A-SSs is transmitted before each LP-WUS MO.
[0248] Example 60 includes the method of example 59, where the configuration information comprises information associated with a time duration for a LP-WUS MO and the time duration for the LP-WUS MO comprises a time duration for transmission occasion for a LP-WUS and a time duration for transmission occasion for each A-SS.
[0249] Example 61 includes the method of example 58, where each A-SSs is transmitted before a first LP-WUS MO of one or more LP-WUS MOs in a beam.
[0250] Example 62 includes the method of example 61, where the configuration information comprises information associated with a time duration for each A-SS and the time duration for each A-SS is based on a number of OOK symbols per an OFDM symbol for each A-SS.
[0251] Example 63 includes the method of example 61, where the configuration information comprises information associated with a starting symbol of a transmission occasion for each A-SS in the beam.
[0252] Example 64 includes the method of example 63, where the configuration information comprises information associated with a slot offset for the transmission occasion for each A-SS with respect to a reference point or the first LP-WUS MO of the one or more LP-WUS MOs in the beam.
[0253] Example 65 includes the method of example 64, where the configuration information comprises information associated with a slot offset for the transmission occasion for each A-SS with respect to a reference point or the first LP-WUS MO of the one or more LP-WUS MOs in the beam.
[0254] Example 66 includes the method of example 64, where different parameters associated with the starting symbol and the slot offset are configured for the one or more A-SSs in different beams.
[0255] Example 67 is a method including: monitoring one or more LP-WUS MOs within a LO, receiving a LP-WUS including information associated with wake-up indications for one or more POs mapped to the LO and monitoring one of the one or more POs based on the information associated with the wake-up indications.
[0256] Example 68 includes the method of example 67, where the information associated with the wake-up indications comprises a concatenation of more than one bitmap for the one or more POs, each bitmap represents a wake-up indication for each PO, and each bit field of each bitmap corresponds to one subgroup of each PO.
[0257] Example 69 includes the method of example 67, where the information associated with the wake-up indications comprises a concatenation of more than one codepoint for the one or more POs, each codepoint represents a wake-up indication for each PO, and each codepoint corresponds to one or more subgroups of each PO.
[0258] Example 70 includes the method of example 67, where the information associated with the wake-up indications comprises a concatenation of more than one set of codepoints, each set of codepoints comprises more than one codepoint, and each set of codepoints represents a wake-up indication for each PO.
[0259] Example 71 includes the method of example 67, where the information associated with the wake-up indications comprises an index of a PO of the one or more POs and a bitmap for the PO, the bitmap represents a wake-up indication for the PO, and each bit field of the bitmap corresponds to one subgroup of the PO.
[0260] Example 72 includes the method of example 67, where the information associated with the wake-up indications comprises an index of a PO of the one or more POs and a codepoint for the PO, the codepoint represents a wake-up indication for the PO, and the codepoint corresponds to one or more subgroups of the PO.
[0261] Example 73 includes the method of example 67, where the information associated with the wake-up indications comprises an index of a PO of the one or more POs and a set of codepoints for the PO, the set of codepoints comprises more than one codepoint, and the set of codepoints represents a wake-up indication for the PO.
[0262] Example 74 includes the method of example 67, where the information associated with the wake-up indications comprises more than one pair of one index and one codepoint.
[0263] Example 75 includes the method of example 74, where based on that more than one index indicates a same PO, more than one codepoint represents a wake-up indication for the same PO.
[0264] Example 76 includes the method of example 74, where based on that more than one index indicates different POs, more than one codepoint represents wake-up indications for the different POs.
[0265] Example 77 includes the method of example 67, where the information associated with the wake-up indications comprises one or more codepoints for the one or more POs, a plurality of subgroups is indexed across the one or more POs, and each codepoint represents a wake-up indication for one or more subgroups among the plurality of subgroups.
[0266] Example 78 is an apparatus including one or more processors configured to perform the method of any of examples 1 to 77.
[0267] Example 79 is a UE including one or more processors and memory storing instructions that, when executed by the one or more processors, cause the UE to perform the method of any of examples 1 to 77.
[0268] Any of the foregoing examples can be combined with any other example (or combination of examples) , unless explicitly stated otherwise. The foregoing description of one or more implementations provides illustration and description, but is not intended to be exhaustive or to limit the scope of embodiments to the precise form disclosed. Modifications and variations are possible in light of the above teachings or may be acquired from practice of various embodiments.
[0269] Although the embodiments above have been described in considerable detail, numerous variations and modifications will become apparent to those skilled in the art once the above disclosure is fully appreciated. It is intended that the following claims be interpreted to embrace all such variations and modifications.
[0270] As described above, one aspect of the present technology may relate to the gathering and use of data available from specific and legitimate sources to allow for interaction with a second device for a data transfer. The present disclosure contemplates that in some instances, this gathered data may include personal information data that uniquely identifies or can be used to identify a specific person. Such personal information data can include demographic data, location-based data, online identifiers, telephone numbers, email addresses, home addresses, data or records relating to a user’s health or level of fitness (e.g., vital signs measurements, medication information, exercise information) , date of birth, or any other personal information.
[0271] The present disclosure recognizes that the use of such personal information data, in the present technology, can be used to the benefit of users. For example, the personal information data can be used to provide for secure data transfers occurring between a first device and a second device. The personal information data may further be utilized for identifying an account associated with the user from a service provider for completing a data transfer.
[0272] The present disclosure contemplates that those entities responsible for the collection, analysis, disclosure, transfer, storage, or other use of such personal information data will comply with well-established privacy policies and / or privacy practices. In particular, such entities would be expected to implement and consistently apply privacy practices that are generally recognized as meeting or exceeding industry or governmental requirements for maintaining the privacy of users. Such information regarding the use of personal data should be prominent and easily accessible by users, and should be updated as the collection and / or use of data changes. Personal information from users should be collected for legitimate uses only. Further, such collection / sharing should occur only after receiving the consent of the users or other legitimate basis specified in applicable law. Additionally, such entities should consider taking any needed steps for safeguarding and securing access to such personal information data and ensuring that others with access to the personal information data adhere to their privacy policies and procedures. Further, such entities can subject themselves to evaluation by third parties to certify their adherence to widely accepted privacy policies and practices. In addition, policies and practices should be adapted for the particular types of personal information data being collected and / or accessed and adapted to applicable laws and standards, including jurisdiction-specific considerations that may serve to impose a higher standard. For example, in the US, collection of or access to certain health data may be governed by federal and / or state laws, such as the Health Insurance Portability and Accountability Act (HIPAA) ; whereas health data in other countries may be subject to other regulations and policies and should be handled accordingly.
[0273] Despite the foregoing, the present disclosure also contemplates embodiments in which users selectively block the use of, or access to, personal information data. That is, the present disclosure contemplates that hardware and / or software elements can be provided to prevent or block access to such personal information data. For example, the present technology can be configured to allow users to select to “opt in” or “opt out” of participation in the collection of personal information data during registration for services or anytime thereafter. For example, a user may “opt in” or “opt out” of having information associated with an account of the user stored on a user device and / or shared by the user device. In addition to providing “opt in” and “opt out” options, the present disclosure contemplates providing notifications relating to the access or use of personal information. For example, a user may be notified upon downloading an application that their personal information data will be accessed and then reminded again just before personal information data is accessed by the application. In some instances, the user may be notified upon initiation of a data transfer of the device accessing information associated with the account of the user and / or the sharing of information associated with the account of the user with another device.
[0274] Moreover, it is the intent of the present disclosure that personal information data should be managed and handled in a way to minimize risks of unintentional or unauthorized access or use. Risk can be minimized by limiting the collection of data and deleting data once it is no longer needed. In addition, and when applicable, including in certain health related applications, data de-identification can be used to protect a user’s privacy. De-identification may be facilitated, when appropriate, by removing identifiers, controlling the amount or specificity of data stored (e.g., collecting location data at city level rather than at an address level) , controlling how data is stored (e.g., aggregating data across users) , and / or other methods such as differential privacy.
[0275] Therefore, although the present disclosure broadly covers use of personal information data to implement one or more various disclosed embodiments, the present disclosure also contemplates that the various embodiments can also be implemented without the need for accessing such personal information data. That is, the various embodiments of the present technology are not rendered inoperable due to the lack of all or a portion of such personal information data. For example, content can be selected and delivered to users based on aggregated non-personal information data or a bare minimum amount of personal information, such as the content being handled only on the user’s device or other non-personal information available to the content delivery services.
Claims
1.A method comprising:receiving configuration information associated with one or more low-power wake-up signal monitoring occasions (LP-WUS MOs) within a LP-WUS occasion (LO) ; andmonitoring one or more LP-WUSs based on the configuration information.2.The method of claim 1, wherein monitoring the one or more LP-WUSs within the one or more LP-WUS MOs based on the configuration information comprises:determining, based on the configuration information, one or more beams in which the one or more LP-WUSs are transmitted within the LO among a plurality of beams corresponding to synchronization signal / PBCH blocks (SSBs) ; andmonitoring the one or more LP-WUSs in the one or more beams within the LO.3.The method of claim 2, wherein the configuration information comprises a first information associated with the one or more beams in which the one or more LP-WUSs are transmitted within the LO, and wherein the first information comprises a bitmap indicating whether the one or more LP-WUSs are transmitted in each of the plurality of beams for transmitted SSBs.4.The method of claim 3, wherein a length of the bitmap is determined based on a number of the plurality of beams corresponding to SSBs, wherein each bit field of the bitmap corresponds to one particular beam of the plurality of beams and different bit fields of the bitmap corresponds to different beams of the plurality of beams, and wherein a value of 1 for a bit field of the bitmap indicates that one or more LP-WUSs are transmitted in the corresponding beam of the plurality of beams, and a value of 0 for bit field of the bitmap indicates that one or more LP-WUSs are not transmitted in the corresponding beam of the plurality of beams.5.The method of claim 1, wherein monitoring the one or more LP-WUSs within the one or more LP-WUS MOs based on the configuration information comprises:determining time domain resources for the one or more LP-WUS MOs based on the configuration information, wherein the configuration information comprises a second information associated with the time domain resources for the one or more LP-WUS MOs; andmonitoring the one or more LP-WUSs within the time domain resources for the one or more LP-WUS MOs within the LO.6.The method of claim 5, wherein the second information comprises information associated with a periodicity for the one or more LP-WUS MOs and information associated with one or more candidate starting symbol locations of LP-WUS MOs within a period determined by the periodicity.7.The method of claim 6, wherein the second information comprises an offset value indicating the first LP-WUS MO in the LO with respect to a reference point, the reference point being one of a paging occasion (PO) or a paging frame (PF) plus a frame-level offset.8.The method of claim 6, wherein the information associated with one or more candidate starting symbol locations of LP-WUS MOs within the period comprises at least one of a set of starting symbol indices of LP-WUS MOs within the period, or a bitmap indicating the one or more starting symbols of LP-WUS MOs within the period.9.The method of claim 5, wherein the second information comprises one or more of information associated with a periodicity for the one or more LP-WUS MOs, information associated with a set of slot offset values, or information associated with one or more starting symbols of LP-WUS MOs within a slot.10.The method of claim 9, wherein the information associated with one or more starting symbols of the LP-WUS MOs within the slot comprises one of a set of starting symbol indices of the LP-WUS MOs within the slot, or a bitmap indicating the one or more starting symbols of the LP-WUS MOs within the slot.11.The method of claim 1, wherein the configuration information comprises information associated with frequency domain resources for the one or more LP-WUS MOs, and wherein the information associated frequency domain resources for the one or more LP-WUS MOs indicates physical resource blocks (PRBs) on which the one or more LP-WUSs are mapped.12.The method of claim 1, wherein the configuration information comprises at least one of:information associated with an offset value for the one or more LP-WUS MOs with respect to a reference point, the reference point being represented as one of a PO or a PF, information associated with a number of subgroups per a PO, information associated with a number of information bits in each LP-WUS, information associated with a number of on-off keying (OOK) symbols per an orthogonal frequency-division multiplexing (OFDM) symbol for each LP-WUS, information associated with a time duration for each LP-WUS, information associated with a number of LP-WUS MOs per a beam or information associated with a number of LP-WUS MOs per a LO, or information associated with one or more root sequence indices and one or more cyclic shifts for generating one or more overlaid sequences for OOK ON symbols for the one or more LP-WUSs.13.The method of claim 1, the method further comprising:determining invalid symbols for LP-WUS MOs based on a time division duplex (TDD) pattern configured by a parameter tdd-UL-DL-ConfigurationCommon or a configured mask information; and determining LP-WUS MOs that include the invalid symbols among the one or more LP-WUS MOs as invalid.14.The method of claim 13, wherein monitoring one or more LP-WUSs based on the configuration information comprises one of:monitoring the one or more LP-WUSs within LP-WUS MOs that are not determined as invalid, or monitoring the one or more LP-WUSs within the one or more LP-WUS MOs, wherein the invalid symbols between starting symbol and last symbol of each LP-WUS MO are skipped for monitoring the one or more LP-WUSs.15.A method comprising:receiving configuration information associated with one or more low-power synchronization signals (LP-SSs) ; andmonitoring the one or more LP-SSs based on the configuration information.16.The method of claim 15, wherein the configuration information comprises information associated with a periodicity of transmission of the one or more LP-SSs, and wherein the configuration information comprises an offset value for transmission of the one or more LP-SSs with respect to a reference point.17.The method of claim 16, wherein monitoring the one or more LP-SSs based on the configuration information comprises:determining one or more beams in which the one or more LP-SSs are transmitted within a period among a plurality of beams for transmitted SSBs based on the configuration information, wherein the period is determined based on the information associated with the periodicity of transmission of the one or more LP-SSs; andmonitoring the one or more LP-SSs in the one or more beams within the period.18.The method of claim 17, wherein the configuration information comprises a first information associated with the one or more beams in which the one or more LP-SSs are transmitted within the period, wherein the first information comprises a bitmap indicating whether the one or more LP-SSs are transmitted in each of the plurality of beams for transmitted SSBs, wherein a length of the bitmap is determined based on a number of the plurality of beams for transmitted SSBs, wherein each bit field of the bitmap corresponds to one beam with an index value among the plurality of beams for transmitted SSBs, and wherein a value of 1 for the each bit field indicates that the one or more LP-SSs are transmitted in the one beam with the index value, and a value of 0 for the each bit field indicates that the one or more LP-SSs are not transmitted in the one beam with the index value.19.The method of claim 16, wherein monitoring the one or more LP-SSs based on the configuration information comprises:determining N transmission occasions for the one or more LP-SSs within a period based on the configuration information, wherein N is determined based on a number of beams in which the one or more LP-SSs are transmitted within the period and wherein the period is determined based on the information associated with the periodicity of transmission of the one or more LP-SSs; andmonitoring the one or more LP-SSs within the N transmission occasions within the period.20.The method of claim 19, wherein the configuration information comprises one of:information associated with N pairs of an offset value and a starting symbol index of the N transmission occasions, or information associated with N starting symbol indices of the N transmission occasions with respect to a reference point, the reference point being a symbol index with a value of 0.21.The method of claim 19, the method further comprising:determining invalid symbols for LP-SS based on a time division duplex (TDD) pattern configured by a parameter tdd-UL-DL-ConfigurationCommon or a configured mask information; and determining transmission occasions that include the invalid symbols for LP-SS as invalid, wherein monitoring the one or more LP-SSs comprises monitoring the one or more LP-SSs within N transmission occasions that are not determined as invalid.22.The method of claim 19, wherein monitoring the one or more LP-SSs comprises monitoring the one or more LP-SSs within the N transmission occasions, wherein an invalid symbols between starting symbol and last symbol of each of the N transmission occasions are skipped for monitoring the one or more LP-SSs.23.The method of claim 15, wherein the configuration information comprises at least one of:information associated with frequency domain resources for the one or more LP-SSs, wherein the information associated frequency domain resources for the one or more LP-SSs indicates PRBs on which the one or more LP-SSs are mapped, information associated with a number of OOK symbols per an OFDM symbol for each LP-SS, information associated with a time duration for each LP-SS, wherein the information associated with a time duration for each LP-SS is represented based on a length of binary sequence used for each LP-SS, or by a number of OFDM symbols, information associated with a binary sequence used for each LP-SS, wherein the information associated with a binary sequence used for each LP-SS comprises a pointer to one of pre-defined sequences, or information associated with one or more root sequence indices and one or more cyclic shifts for generating one or more overlaid sequences for OOK ON symbols for the one or more LP-SSs.