Low power wake up signal paging procedure

Abstract

Systems, methods, apparatuses, and computer program products for informing a core network / base station aware of the UEs LP-WUS supports on different bands for a paging procedure. For example, a method may include transmitting, to a network entity, LP-WUS capability information comprising information on one or more frequencies or bands where LP-WUS is supported by the apparatus; and receiving, from the network entity, LP-WUS on a frequency or band from among the one or more frequencies or bands which were included in the transmitted LP-WUS capability information.

Description

TITLELOW POWER WAKE UP SIGNAL PAGING PROCEDURETECHNICAL FIELD

[0001] Some example embodiments may generally relate to mobile or wireless telecommunication systems, such as 3rdGeneration Partnership Project (3GPP) Long Term Evolution (LTE), 5thgeneration (5G) radio access technology (RAT), new radio (NR) access technology, 6thgeneration (6G), and / or other communications systems. For example, certain example embodiments may relate to systems and / or methods for informing a core network / base station aware of the UEs LP-WUS supports on different bands for a paging procedure.BACKGROUND

[0002] Examples of mobile or wireless telecommunication systems may include radio frequency (RF) 5G RAT, the Universal Mobile Telecommunications System (UMTS) Terrestrial Radio Access Network (UTRAN), LTE Evolved UTRAN (E-UTRAN), LTE-Advanced (LTE-A), LTE-A Pro, NR access technology, and / or MulteFire Alliance. 5G wireless systems refer to the next generation (NG) of radio systems and network architecture. A 5G system is typically built on a 5G NR, but a 5G (or NG) network may also be built on E-UTRA radio. It is expected that NR can support service categories such as enhanced mobile broadband (eMBB), ultra-reliable low-latency- communication (URLLC), and massive machine-type communication (mMTC). NR is expected to deliver extreme broadband, ultra-robust, low-latency connectivity, and massive networking to support the Internet of Things (IoT). The next generation radio access network (NG-RAN) represents the radio access network (RAN) for 5G, which may provide radio access for NR, LTE, and LTE-A. It is noted that the nodes in 5G providing radio access functionality to a user equipment (e.g, similar to the Node B in UTRAN or the Evolved Node B (eNB) in LTE) may be referred to as next-generation Node B (gNB) when built on NR radio, and may be referred to as next-generation eNB (NG-eNB) when built on E-UTRA radio.SUMMARY

[0003] In accordance with some example embodiments, a method may include transmitting, by a user equipment, to a network entity, LP-WUS capability information comprising information on one or more frequencies or bands where LP-WUS is supported by the user equipment. The method may further include receiving, by the user equipment, from the network entity, LP-WUS on a frequency or band from among the one or more frequencies or bands which were included in the transmitted LP-WUS capability information.

[0004] In accordance with certain example embodiments, an apparatus may include means for transmitting, to a network entity, LP-WUS capability information comprising information on one or more frequencies or bands where LP-WUS is supported by the apparatus. The apparatus may further include means for receiving, from the network entity, LP-WUS on a frequency or band from among the one or more frequencies or bands which were included in the transmitted LP-WUS capability information.

[0005] In accordance with various example embodiments, a non-transitory computer readable medium may include program instructions that, when executed by an apparatus, cause the apparatus to perform at least a method. The method may include transmitting, to a network entity, LP-WUS capability information comprising information on one or more frequencies or bands where LP-WUS is supported by the apparatus. The method may further include receiving, from the network entity, LP- WUS on a frequency or band from among the one or more frequencies or bands which were included in the transmitted LP-WUS capability information.

[0006] In accordance with some example embodiments, a computer program product may perform a method. The method may include transmitting, to a network entity, LP- WUS capability information comprising information on one or more frequencies or bands where LP-WUS is supported by the apparatus. The method may further include receiving, from the network entity, LP-WUS on a frequency or band from among the one or more frequencies or bands which were included in the transmitted LP-WUS capability information.

[0007] In accordance with certain example embodiments, an apparatus may include at least one processor and at least one memory storing instructions that, when executed by the at least one processor, cause the apparatus at least to transmit, to a network entity, LP-WUS capability information comprising information on one or more frequencies or bands where LP-WUS is supported by the apparatus. The at least one memory and instructions, when executed by the at least one processor, may further cause the apparatus at least to receive, from the network entity, LP-WUS on a frequency or band from among the one or more frequencies or bands which were included in the transmitted LP-WUS capability information.

[0008] In accordance with various example embodiments, an apparatus may include transmitting circuitry configured to perform transmitting, to a network entity, LP-WUS capability information comprising information on one or more frequencies or bands where LP-WUS is supported by the apparatus. The apparatus may further include receiving circuitry configured to perform receiving, from the network entity, LP-WUS on a frequency or band from among the one or more frequencies or bands which were included in the transmitted LP-WUS capability information.

[0009] In accordance with some example embodiments, a method may include receiving, from a user equipment, LP-WUS capability information associated with LR / LP-WUS support in a frequency or band from a plurality of frequencies or bands. The method may further include transmitting, to at least one device, the LP-WUS capability information. The method may further include receiving, from the at least one device, LP-WUS band information. The method may further include transmitting, to the user equipment, LP-WUS on the frequency or band from the plurality of frequencies or bands based on the received LP-WUS capability information from the at least one device.

[0010] In accordance with certain example embodiments, an apparatus may include means for receiving, from a user equipment, LP-WUS capability information associated with LR / LP-WUS support in a frequency or band from a plurality of frequencies or bands. The apparatus may further include means for transmitting, to at least one device, the LP-WUS capability information. The apparatus may further include means forreceiving, from the at least one device, LP-WUS band information. The apparatus may further include means for transmitting, to the user equipment, LP-WUS on the frequency or band from the plurality of frequencies or bands based on the received LP- WUS capability information from the at least one device.

[0011] In accordance with various example embodiments, a non-transitory computer readable medium may include program instructions that, when executed by an apparatus, cause the apparatus to perform at least a method. The method may include receiving, from a user equipment, LP-WUS capability information associated with LR / LP-WUS support in a frequency or band from a plurality of frequencies or bands. The method may further include transmitting, to at least one device, the LP-WUS capability information. The method may further include receiving, from the at least one device, LP-WUS band information. The method may further include transmitting, to the user equipment, LP-WUS on the frequency or band from the plurality of frequencies or bands based on the received LP-WUS capability information from the at least one device.

[0012] In accordance with some example embodiments, a computer program product may perform a method. The method may include receiving, from a user equipment, LP- WUS capability information associated with LR / LP-WUS support in a frequency or band from a plurality of frequencies or bands. The method may further include transmitting, to at least one device, the LP-WUS capability information. The method may further include receiving, from the at least one device, LP-WUS band information. The method may further include transmitting, to the user equipment, LP-WUS on the frequency or band from the plurality of frequencies or bands based on the received LP- WUS capability information from the at least one device.

[0013] In accordance with certain example embodiments, an apparatus may include at least one processor and at least one memory storing instructions that, when executed by the at least one processor, cause the apparatus at least to receive, from a user equipment, LP-WUS capability information associated with LR / LP-WUS support in a frequency or band from a plurality of frequencies or bands. The at least one memory and instructions, when executed by the at least one processor, may further cause theapparatus at least to transmit, to at least one device, the LP-WUS capability information. The at least one memory and instructions, when executed by the at least one processor, may further cause the apparatus at least to receive, from the at least one device, LP- WUS band information. The at least one memory and instructions, when executed by the at least one processor, may further cause the apparatus at least to transmit, to the user equipment, LP-WUS on the frequency or band from the plurality of frequencies or bands based on the received LP-WUS capability information from the at least one device.

[0014] In accordance with various example embodiments, an apparatus may include receiving circuitry configured to perform receiving, from a user equipment, LP-WUS capability information associated with LR / LP-WUS support in a frequency or band from a plurality of frequencies or bands. The apparatus may further include transmitting circuitry configured to perform transmitting, to at least one device, the LP-WUS capability information. The apparatus may further include receiving circuitry configured to perform receiving, from the at least one device, LP-WUS band information. The apparatus may further include transmitting circuitry configured to perform transmitting, to the user equipment, LP-WUS on the frequency or band from the plurality of frequencies or bands based on the received LP-WUS capability information from the at least one device.

[0015] In accordance with some example embodiments, a method may include receiving, from at least one device, LP-WUS capability information. The method may further include transmitting, to the at least one device, LP-WUS band information.

[0016] In accordance with certain example embodiments, an apparatus may include means for receiving, from at least one device, LP-WUS capability information. The apparatus may further include means for transmitting, to the at least one device, LP- WUS band information.

[0017] In accordance with various example embodiments, a non-transitory computer readable medium may include program instructions that, when executed by an apparatus, cause the apparatus to perform at least a method. The method may includereceiving, from at least one device, LP-WUS capability information. The method may further include transmitting, to the at least one device, LP-WUS band information.

[0018] In accordance with some example embodiments, a computer program product may perform a method. The method may include receiving, from at least one device, LP-WUS capability information. The method may further include transmitting, to the at least one device, LP-WUS band information.

[0019] In accordance with certain example embodiments, an apparatus may include at least one processor and at least one memory storing instructions that, when executed by the at least one processor, cause the apparatus at least to receive, from at least one device, LP-WUS capability information. The at least one memory and instructions, when executed by the at least one processor, may further cause the apparatus at least to transmit, to the at least one device, LP-WUS band information.

[0020] In accordance with various example embodiments, an apparatus may include receiving circuitry configured to perform receiving, from at least one device, LP-WUS capability information. The apparatus may further include transmitting circuitry configured to perform transmitting, to the at least one device, LP-WUS band information.BRIEF DESCRIPTION OF THE DRAWINGS

[0021] For a proper understanding of example embodiments, reference should be made to the accompanying drawings, wherein:

[0022] FIG. 1 illustrates an example of a signaling diagram according to certain example embodiments;

[0023] FIG. 2 illustrates an example of a signaling diagram according to certain example embodiments;

[0024] FIG. 3 illustrates an example of a flow diagram of a method according to various example embodiments;

[0025] FIG. 4 illustrates an example of a flow diagram of a method according to various example embodiments;

[0026] FIG. 5 illustrates an example of a flow diagram of a method according to various example embodiments;

[0027] FIG. 6 illustrates an example of various network devices according to some example embodiments; and

[0028] FIG. 7 illustrates an example of a 5G network and system architecture according to certain example embodiments.DETAILED DESCRIPTION

[0029] It will be readily understood that the components of certain example embodiments, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of some example embodiments of systems, methods, apparatuses, and computer program products for informing a core network / base station aware of the UEs low power (LP)-wake up signal (WUS) supports on different bands for a paging procedure is not intended to limit the scope of certain example embodiments, but is instead representative of selected example embodiments.

[0030] In some current techniques, LP-WUS may be transmitted on all bands supported by a user equipment. However, the UE may not support LP-WUS on all the bands supported by the UE, which may result in the network transmitting LP- WUS on the bands where the UE does not support it, and wasting network resources. Wake-up times per band may differ based on UE capability; thus, network performance may suffer depending on UE band, and wake-up time support.

[0031] Certain example embodiments described herein may have various benefits and / or advantages to overcome the disadvantages described above. For example, in certain example embodiments a serving gNB / CN may be aware that the UE supporting / configured with LP / WUS needs to be paged with LP-WUS or not on certain bands. This may conserve network resources by not transmitting LP-WUS on unsupported bands. Furthermore, the network may decide whether to configure LP- WUS for a specific area depending on the deployment and bands. For instance, in some areas, the network may use paging instead of LP-WUS (and vice versa)depending on specific band support. In some example embodiments, the UE may have band-specific wake-up times; thus, to guarantee certain wake up times, the network may decide whether to configure LP-WUS. Thus, certain example embodiments discussed below are directed to improvements in computer-related technology.

[0032] Certain example embodiments may notify a base station and / or core network of the LP-WUS supported by a UE on different bands for the paging procedure by transmitting LP-WUS on selected bands, and the device may monitor the selected bands. In order to improve compatibility between the RAN and the CN, the NG-RAN and the CN may exchange capability information on LP-WUS support on different bands.

[0033] In certain example embodiments, the NG-RAN may avoid using LP-WUS if an AMF does not indicate that LP-WUS is supported on the band where the gNB operates. For example, the UE may indicate capability support for low power wake up receiver (LR) or LP-WUS in specific bands. The AMF may then transmit a list of supported bands the UE supports to RAN. The transmitted list may be specific for a network area, or a network-wide list for LP-WUS support. If the band is not included in the list of AMF -provided supported bands, the NG-RAN may not configure the UE with the LP-WUS for that band.

[0034] In some example embodiments, LP-WUS capability information per band between the NG-RAN and the AMF may be signaled during an N2 connection establishment procedure. For example, the UE may use a capability exchange to indicate LR band support. The gNB may transmit the capability information either “as is” or as a list of supported bands.

[0035] In various example embodiments, LP-WUS capability information may include one or more of a list of LP-WUS supported on all the bands supported by the UE, a list of bands where LP-WUS is supported, and / or a list of bands where LP- WUS is not supported.

[0036] In certain example embodiments, the gNB may inform / signal other gNBs via X2 / Xn to indicate the LP-WUS band support information of the UE. For example,the gNB may transmit band support information per UE and / or across all UEs. As another example, the information may be included in the UE context information transmitted from a source gNB to a target gNB (e.g, in handover).

[0037] In some example embodiments, the gNB may inform / signal the CN / AMF via Sl / NG to indicate the UE LP-WUS band support information.

[0038] In various example embodiments, LP-WUS band support information may be used in CN and / or RAN paging. For example, LP-WUS may be transmitted only on the cells / carriers in bands where the UE supports LP-WUS, and / or on selected bands / carriers among the carriers that UE supports so that priority carriers (e.g, for re-selection) that the UE supports for normal paging and for LP-WUS are covered.

[0039] In certain example embodiments, LP-WUS band support information may be stored in the CN and / or the RAN. LP-WUS band support information may be stored in the UE context and / or in the UE capability information.

[0040] In some example embodiments, UE capability indicated band specific wakeup time information may be included in the information exchanges discussed above.

[0041] FIG. 1 illustrates an example of a signaling diagram 100 depicting techniques for informing a core network / base station aware of the UEs LP-WUS supports on different bands for a paging procedure. UE 110 may be similar to UE 620, and NE 120 and AMF 130 may be similar to NE 610, as illustrated in FIG. 6, according to certain example embodiments.

[0042] UE 110 may be configured with LP-WUS and / or UE may support LP-WUS.

[0043] At operation 101, UE 110 may transmit to NE 120 LP-WUS capability information associated with LR / LP-WUS support in a set of frequencies / bands from a plurality of frequencies / bands. The information exchange may be done via a capability information enquiry process where the network requests UE capabilities and UE transmits UE capability information as a response. For example, the LP-WUS capability information may include at least one of a list of LP-WUS supported on all the bands supported by the UE, a list of bands where LR and / or LP-WUS is supported, and / or a list of bands where LP-WUS is not supported. NE 120 may be used to derive band support information that is transmitted by NE 120 to AMF 130. NE 120 may thendirectly use this capability information as band support information, or it may process it further to create band support information that is transmitted to AMF 130.

[0044] At operation 102, NE 120 may transmit to AMF 130 the LP-WUS capability information. For example, NE 120 may signal LP-WUS band support information of UE 110 and / or cell LP-WUS band support information to other NEs similar to NE 610 and / or a CN. NE 120 may transmit the LP-WUS capability information via X2 / Xn or via Sl / NG. LMF 130 may store the LP-WUS band support information of UE 110.

[0045] At operation 103, LMF 130 may analyze and select band support information. LMF 130 may also store the LP-WUS band support information of UE 110.

[0046] At operation 104, AMF 130 may transmit an indication responsive to the LP- WUS band support information received from NE 120, including the band(s) where the UE 110 supports LP-WUS.

[0047] At operation 105, AMF 130 may perform a paging procedure with NE 120. For example, AMF 130 may use the LP-WUS information of UE 110 and / or cell LP-WUS band support information in a paging procedure. NE 120 may signal the UEs band support information to other NEs which page UE 110. Alternatively, signaling from NE 120 may not indicate the LP-WUS that UE 110 does not support LP-WUS on band(s) on which NE 120 operates.

[0048] At operation 106, NE 120 may configure LP-WUS.

[0049] At operation 107, NE 120 may transmit to UE 110 LP-WUS on the set of frequencies / bands from a plurality of frequencies / bands based on the received LP-WUS capability information from the device. The LP-WUS may be transmitted to UE 110 only on the bands where UE 110 supports LP-WUS. UE 110 may monitor the LP- WUS on the bands where UE 110 supports those bands.

[0050] At operation 108, NE 120 may perform a paging procedure with UE 110. For example, NE 120 may use the LP-WUS information of UE 110 and / or cell LP-WUS band support information in a paging procedure.

[0051] FIG. 2 illustrates an example of a signaling diagram 200 depicting techniques for informing a core network / base station aware of the UEs LP-WUS supports on different bands for a paging procedure. UE 210 may be similar to UE 620, and lastserving NE 220 and gNB 230 may be similar to NE 610, as illustrated in FIG. 6, according to certain example embodiments.

[0052] At operation 201, UE 210 may be in a RRC inactive CM connected state (i.e., RRC INACTIVE CM-CONNECTED).

[0053] At operation 202, last serving base station 220 may perform an RAN paging trigger.

[0054] At operation 203, last serving base station 220 may perform RAN paging with base station 230.

[0055] At operation 204, last serving base station 220 may transmit to base station 230 LP-WUS band information.

[0056] At operation 205, base station 230 may transmit to UE 210 LP-WUS on the band(s) where US 210 supports LP-WUS.

[0057] At operation 206, base station 230 may perform paging with UE 210.

[0058] At operation 207, UE 210, last serving base station 220, and base station 230 may resume from an RRC INACTIVE state.

[0059] FIG. 3 illustrates an example of a flow diagram of a method 300 that may be performed by a UE, such as UE 620 illustrated in FIG. 6, according to various example embodiments.

[0060] At step 301, the method may include transmitting, to a network entity such as NE 610 illustrated in FIG. 6, LP-WUS capability information comprising information on one or more frequencies or bands where LP-WUS is supported by the UE. The transmitted LP-WUS capability information may be obtained from at least one of the apparatus or an access and mobility management function. The LP-WUS capability information may be transmitted to the network entity via air interface. The LP-WUS capability information may be included in a UECapabilitylnformation RRC message.

[0061] At step 302, the method may further include receiving, from the network entity, LP-WUS on a frequency or band from among the one or more frequencies or bands which were included in the transmitted LP-WUS capability information. The LP-WUS may be received on a band indicated in the LP-WUS capability information as being supported by the UE.

[0062] In certain example embodiments, the LP-WUS capability information may include at least one of a list of LP-WUS supported on all bands supported by the apparatus; a list of bands where LP-WUS is supported; LP-WUS support information per band; or a list of bands where LP-WUS is not supported.

[0063] FIG. 4 illustrates an example of a flow diagram of a method 400 that may be performed by a TRP, such as NE 610 illustrated in FIG. 6, according to various example embodiments.

[0064] At step 401, the method may include receiving, from a UE such as UE 620 illustrated in FIG. 6, LP-WUS capability information associated with LR / LP-WUS support in a frequency or band from a plurality of frequencies or bands. The LP-WUS capability information may be received by the apparatus via air interface. The LP- WUS capability information may be included in the UECapability Information RRC message.

[0065] The LP-WUS capability information may include at least one of a list of LP- WUS supported on all bands supported by the apparatus; a list of bands where LP- WUS is supported; LP-WUS support information per band; or a list of bands where LP-WUS is not supported.

[0066] At step 402, the method may further include transmitting, to at least one device, the LP-WUS capability information.

[0067] At step 403, the method may further include receiving, from the at least one device, LP-WUS band information.

[0068] At step 404, the method may further include transmitting, to the user equipment, LP-WUS on the frequency or band from the plurality of frequencies or bands based on the received LP-WUS capability information from the at least one device (e.g, AMF), such as NE 610 illustrated in FIG. 6.

[0069] FIG. 5 illustrates an example of a flow diagram of a method 500 that may be performed by an AMF, such as NE 610 illustrated in FIG. 6, according to various example embodiments.

[0070] At step 501, the method may include receiving, from at least one device (e.g, gNB) such as NE 610 illustrated in FIG. 6, LP-WUS capability information. The LP- WUS capability information may be received by the AMF via air interface.

[0071] The LP-WUS capability information may include at least one of a list of LP- WUS supported on all the bands supported by the UE; a list of bands where LP-WUS is supported; LP-WUS support information per band; or a list of bands where LP- WUS is not supported.

[0072] At step 502, the method may further include transmitting, to the at least one device, LP-WUS band information. The LP-WUS band information may be transmitted with the paging message.

[0073] FIG. 6 illustrates an example of a system according to certain example embodiments. In one example embodiment, a system may include multiple devices, such as, for example, NE 610 and / or UE 620.

[0074] NE 610 may be one or more of a base station (e.g, 3G UMTS NodeB, 4G LTE Evolved NodeB, or 5G NR Next Generation NodeB), a serving gateway, a server, and / or any other access node or combination thereof.

[0075] NE 610 may further include at least one gNB-centralized unit (CU), which may be associated with at least one gNB-distributed unit (DU). The at least one gNB-CU and the at least one gNB -DU may be in communication via at least one Fl interface, at least one Xn-C interface, and / or at least one NG interface via a 5thgeneration core (5GC).

[0076] UE 620 may include one or more of a mobile device, such as a mobile phone, smart phone, personal digital assistant (PDA), tablet, or portable media player, digital camera, pocket video camera, video game console, navigation unit, such as a global positioning system (GPS) device, desktop or laptop computer, single-location device, such as a sensor or smart meter, or any combination thereof. Furthermore, NE 610 and / or UE 620 may be one or more of a citizens broadband radio service device (CBSD).

[0077] NE 610 and / or UE 620 may include at least one processor, respectively indicated as 611 and 621. Processors 611 and 621 may be embodied by any computational or data processing device, such as a central processing unit (CPU), application specificintegrated circuit (ASIC), or comparable device. The processors may be implemented as a single controller, or a plurality of controllers or processors.

[0078] At least one memory may be provided in one or more of the devices, as indicated at 612 and 622. The memory may be fixed or removable. The memory may include computer program instructions or computer code contained therein. Memories 612 and 622 may independently be any suitable storage device, such as a non-transitory computer-readable medium. The term “non-transitory,” as used herein, may correspond to a limitation of the medium itself (z. e. , tangible, not a signal) as opposed to a limitation on data storage persistency (e.g, random access memory (RAM) vs. read-only memory (ROM)). A hard disk drive (HDD), random access memory (RAM), flash memory, or other suitable memory may be used. The memories may be combined on a single integrated circuit as the processor, or may be separate from the one or more processors. Furthermore, the computer program instructions stored in the memory, and which may be processed by the processors, may be any suitable form of computer program code, for example, a compiled or interpreted computer program written in any suitable programming language.

[0079] Processors 611 and 621, memories 612 and 622, and any subset thereof, may be configured to provide means corresponding to the various blocks of FIGs. 1-5. Although not shown, the devices may also include positioning hardware, such as GPS or micro electrical mechanical system (MEMS) hardware, which may be used to determine a location of the device. Other sensors are also permitted, and may be configured to determine location, elevation, velocity, orientation, and so forth, such as barometers, compasses, and the like.

[0080] As shown in FIG. 6, transceivers 613 and 623 may be provided, and one or more devices may also include at least one antenna, respectively illustrated as 614 and 624. The device may have many antennas, such as an array of antennas configured for multiple input multiple output (MIMO) communications, or multiple antennas for multiple RATs. Other configurations of these devices, for example, may be provided. Transceivers 613 and 623 may be a transmitter, a receiver, both a transmitter and a receiver, or a unit or device that may be configured both for transmission and reception.

[0081] The memory and the computer program instructions may be configured, with the processor for the particular device, to cause a hardware apparatus, such as UE, to perform any of the processes described above (z.e., FIGs. 1-5). Therefore, in certain example embodiments, a non-transitory computer-readable medium may be encoded with computer instructions that, when executed in hardware, perform a process such as one of the processes described herein. Alternatively, certain example embodiments may be performed entirely in hardware.

[0082] In certain example embodiments, an apparatus may include circuitry configured to perform any of the processes or functions illustrated in FIGs. 1-5. As used in this application, the term “circuitry” may refer to one or more or all of the following: (a) hardware-only circuit implementations (such as implementations in only analog and / or digital circuitry), (b) combinations of hardware circuits and software, such as (as applicable): (i) a combination of analog and / or digital hardware circuit(s) with software / firmware and (ii) any portions of hardware processor(s) with software (including digital signal processor(s)), software, and memory(ies) that work together to cause an apparatus, such as a mobile phone or server, to perform various functions), and (c) hardware circuit(s) and or processor(s), such as a microprocessor(s) or a portion of a microprocessor(s), that requires software (e.g, firmware) for operation, but the software may not be present when it is not needed for operation. This definition of circuitry applies to all uses of this term in this application, including in any claims. As a further example, as used in this application, the term circuitry also covers an implementation of merely a hardware circuit or processor (or multiple processors) or portion of a hardware circuit or processor and its (or their) accompanying software and / or firmware. The term circuitry also covers, for example and if applicable to the particular claim element, a baseband integrated circuit or processor integrated circuit for a mobile device or a similar integrated circuit in server, a cellular network device, or other computing or network device.

[0083] FIG. 7 illustrates an example of a 5G network and system architecture according to certain example embodiments. Shown are multiple network functions that may be implemented as software operating as part of a network device or dedicated hardware,as a network device itself or dedicated hardware, or as a virtual function operating as a network device or dedicated hardware. The NE and UE illustrated in FIG. 4 may be similar to NE 610 and UE 620, respectively. The user plane function (UPF) may provide services such as intra-RAT and inter-RAT mobility, routing and forwarding of data packets, inspection of packets, user plane quality of service (QoS) processing, buffering of downlink packets, and / or triggering of downlink data notifications. The application function (AF) may primarily interface with the core network to facilitate application usage of traffic routing and interact with the policy framework.

[0084] According to certain example embodiments, processors 611 and 621, and memories 612 and 622, may be included in or may form a part of processing circuitry or control circuitry. In addition, in some example embodiments, transceivers 613 and 623 may be included in or may form a part of transceiving circuitry.

[0085] In some example embodiments, an apparatus (e.g, NE 610 and / or UE 620) may include means for performing a method, a process, or any of the variants discussed herein. Examples of the means may include one or more processors, memory, controllers, transmitters, receivers, and / or computer program code for causing the performance of the operations.

[0086] In various example embodiments, apparatus 620 may be controlled by memory 622 and processor 621 to transmit, to a network entity, low power (LP)-wake up signal (WUS) capability information comprising information on one or more frequencies or bands where LP-WUS is supported by the apparatus; receive, from the network entity, LP-WUS on a frequency or band from among the one or more frequencies or bands which were included in the transmitted LP-WUS capability information.

[0087] Certain example embodiments may be directed to an apparatus that includes means for performing any of the methods described herein including, for example, means for transmitting, to a network entity, low power (LP)-wake up signal (WUS) capability information comprising information on one or more frequencies or bands where LP-WUS is supported by the apparatus; and means for receiving, from the network entity, LP-WUS on a frequency or band from among the one or morefrequencies or bands which were included in the transmitted LP-WUS capability information.

[0088] In various example embodiments, apparatus 610 may be controlled by memory 612 and processor 611 to receive, from a user equipment, low power (LP)-wake up signal (WUS) capability information associated with LR / LP-WUS support in a frequency or band from a plurality of frequencies or bands; transmit, to at least one device, the LP-WUS capability information; receive, from the at least one device, LP- WUS band information; and transmit, to the user equipment, LP-WUS on the frequency or band from the plurality of frequencies or bands based on the received LP-WUS capability information from the at least one device.

[0089] Certain example embodiments may be directed to an apparatus that includes means for performing any of the methods described herein including, for example, means for receiving, from a user equipment, low power (LP)-wake up signal (WUS) capability information associated with LR / LP-WUS support in a frequency or band from a plurality of frequencies or bands; means for transmitting, to at least one device, the LP-WUS capability information; means for receiving, from the at least one device, LP-WUS band information; and means for transmitting, to the user equipment, LP-WUS on the frequency or band from the plurality of frequencies or bands based on the received LP-WUS capability information from the at least one device.

[0090] In various example embodiments, apparatus 610 may be controlled by memory 612 and processor 611 to receive, from at least one device, LP-WUS capability information; and transmit, to the at least one device, LP-WUS band information.

[0091] Certain example embodiments may be directed to an apparatus that includes means for performing any of the methods described herein including, for example, means for receiving, from at least one device, LP-WUS capability information; and transmitting, to the at least one device, LP-WUS band information.

[0092] The features, structures, or characteristics of example embodiments described throughout this specification may be combined in any suitable maimer in one or more example embodiments. For example, the usage of the phrases “various embodiments,”“certain embodiments,” “some embodiments,” or other similar language throughout this specification refers to the fact that a particular feature, structure, or characteristic described in connection with an example embodiment may be included in at least one example embodiment. Thus, appearances of the phrases “in various embodiments,” “in certain embodiments,” “in some embodiments,” or other similar language throughout this specification does not necessarily all refer to the same group of example embodiments, and the described features, structures, or characteristics maybe combined in any suitable manner in one or more example embodiments.

[0093] As used herein, “at least one of the following: ” and “at least one of ” and similar wording, where the list of two or more elements are joined by “and” or “or,” mean at least any one of the elements, or at least any two or more of the elements, or at least all the elements.

[0094] Additionally, if desired, the different functions or procedures discussed above may be performed in a different order and / or concurrently with each other. Furthermore, if desired, one or more of the described functions or procedures may be optional or may be combined. As such, the description above should be considered as illustrative of the principles and teachings of certain example embodiments, and not in limitation thereof.

[0095] One having ordinary skill in the art will readily understand that the example embodiments discussed above may be practiced with procedures in a different order, and / or with hardware elements in configurations which are different than those which are disclosed. Therefore, although some embodiments have been described based upon these example embodiments, it would be apparent to those of skill in the art that certain modifications, variations, and alternative constructions would be apparent, while remaining within the spirit and scope of the example embodiments.

[0096] Partial Glossary

[0097] 3GPP 3rdGeneration Partnership Project

[0098] 5G 5thGeneration

[0099] 5GC 5thGeneration Core

[0100] 6G 6thGeneration

[0101] AF Application Function

[0102] AMF Access and Mobility Management Function

[0103] ASIC Application Specific Integrated Circuit

[0104] CBSD Citizens Broadband Radio Service Device

[0105] CN Core Network

[0106] CPU Central Processing Unit

[0107] CU Centralized Unit

[0108] DU Distributed Unit

[0109] eMBB Enhanced Mobile Broadband

[0110] eNB Evolved Node B

[0111] gNB Next Generation Node B

[0112] GPS Global Positioning System

[0113] HDD Hard Disk Drive

[0114] loT Internet of Things

[0115] LMF Location Management Function

[0116] LP Low Power

[0117] LR Low Power Wake Up Receiver

[0118] LTE Long-Term Evolution

[0119] LTE-A Long-Term Evolution Advanced

[0120] MEMS Micro Electrical Mechanical System

[0121] MIMO Multiple Input Multiple Output

[0122] mMTC Massive Machine Type Communication

[0123] NE Network Entity

[0124] NG Next Generation

[0125] NG-eNB Next Generation Evolved Node B

[0126] NG-RAN Next Generation Radio Access Network

[0127] NR New Radio

[0128] PDA Personal Digital Assistance

[0129] QoS Quality of Service

[0130] RAM Random Access Memory

[0131] RAN Radio Access Network

[0132] RAT Radio Access Technology

[0133] RF Radio Frequency

[0134] ROM Read-Only Memory

[0135] UE User Equipment

[0136] UMTS Universal Mobile Telecommunications System

[0137] UPF User Plane Function

[0138] URLLC Ultra-Reliable and Low-Latency Communication[0139JUTRAN Universal Mobile Telecommunications System Terrestrial Radio Access Network

[0140] WLAN Wireless Local Area Network

[0141] WUS Wake Up Signal

Claims

WE CLAIM:

1. An apparatus comprising: at least one processor; and at least one memory storing instructions that, when executed by the at least one processor, cause the apparatus at least to: transmit, to a network entity, low power (LP)-wake up signal (WUS) capability information comprising information on one or more frequencies or bands where LP- WUS is supported by the apparatus; and receive, from the network entity, LP-WUS on a frequency or band from among the one or more frequencies or bands which were included in the transmitted LP-WUS capability information.

2. The apparatus of claim 1, wherein the transmitted LP-WUS capability information is obtained from at least one of the apparatus or an access and mobility management function.

3. The apparatus of claim 1 or 2, wherein the LP-WUS is received on a band indicated in the LP-WUS capability information as being supported by the apparatus.

4. The apparatus of any of claims 1-3, wherein the LP-WUS capability information is transmitted to the network entity via air interface.

5. The apparatus of any of claims 1-4, wherein the LP-WUS capability information is included in a UECapabilitylnformation RRC message.

6. The apparatus of any of claims 1-5, wherein the LP-WUS capability information comprises at least one of: a list of LP-WUS supported on all bands supported by the apparatus; a list of bands where LP-WUS is supported;LP-WUS support information per band; ora list of bands where LP-WUS is not supported.

7. An apparatus comprising: at least one processor; and at least one memory storing instructions that, when executed by the at least one processor, cause the apparatus at least to: receive, from a user equipment, low power (LP)-wake up signal (WUS) capability information associated with LR / LP-WUS support in a frequency or band from a plurality of frequencies or bands; transmit, to at least one device, the LP-WUS capability information; receive, from the at least one device, LP-WUS band information; and transmit, to the user equipment, LP-WUS on the frequency or band from the plurality of frequencies or bands based on the received LP-WUS capability information from the at least one device.

8. The apparatus of claim 7, wherein the apparatus comprises a base station, and the at least one device comprises an access & mobility management function.

9. The apparatus of claim 7 or 8, wherein the LP-WUS capability information is received by the apparatus via air interface.

10. The apparatus of any of claims 7-9, wherein the LP-WUS capability information is included in the UECapabilitylnformation RRC message.

11. The apparatus of any of claims 7-10, wherein the LP-WUS capability information comprises at least one of: a list of LP-WUS supported on all the bands supported by the UE; a list of bands where LP-WUS is supported;LP-WUS support information per band; or a list of bands where LP-WUS is not supported.

12. An apparatus comprising: at least one processor; and at least one memory storing instructions that, when executed by the at least one processor, cause the apparatus at least to: receive, from at least one device, low power (LP)-wake up signal (WUS) capability information; and transmit, to the at least one device, LP-WUS band information.

13. The apparatus of claim 12, wherein the apparatus comprises an access & mobility management function, and the at least one device comprises a base station.

14. The apparatus of claim 12 or 13, wherein the LP-WUS band information is selected from the LP-WUS band capability information.

15. The apparatus of any of claims 12-14, wherein the LP-WUS band information is transmitted with the paging message.

16. The apparatus of any of claims 12-15, wherein the LP-WUS capability information comprises at least one of: a list of LP-WUS supported on all the bands supported by the UE; a list of bands where LP-WUS is supported;LP-WUS support information per band; or a list of bands where LP-WUS is not supported.

17. A method comprising: transmitting, by a user equipment, to a network entity, low power (LP)-wake up signal (WUS) capability information comprising information on one or more frequencies or bands where LP-WUS is supported by the user equipment; andreceiving, by the user equipment, from the network entity, LP-WUS on a frequency or band from among the one or more frequencies or bands which were included in the transmitted LP-WUS capability information.

18. The method of claim 17, wherein the transmitted LP-WUS capability information is obtained from at least one of the apparatus or an access and mobility management function.

19. The method of claim 17 or 18, wherein the LP-WUS is received on a band indicated in the LP-WUS capability information as being supported by the user equipment.

20. The method of any of claims 17-19, wherein the LP-WUS capability information is transmitted to the network entity via air interface.

21. The method of any of claims 17-20, wherein the LP-WUS capability information is included in a UECapabilitylnformation RRC message.

22. The method of any of claims 17-21, wherein the LP-WUS capability information comprises at least one of: a list of LP-WUS supported on all bands supported by the user equipment; a list of bands where LP-WUS is supported;LP-WUS support information per band; or a list of bands where LP-WUS is not supported.

23. A method comprising : receiving, by a network entity, from a user equipment, low power (LP)-wake up signal (WUS) capability information associated with LR / LP-WUS support in a frequency or band from a plurality of frequencies or bands; transmit, to at least one device, the LP-WUS capability information; receive, from the at least one device, LP-WUS band information; andtransmit, to the user equipment, LP-WUS on the frequency or band from the plurality of frequencies or bands based on the received LP-WUS capability information from the at least one device.

24. The method of claim 23, wherein the at least one device comprises an access & mobility management function.

25. The method of claim 23 or 24, wherein the LP-WUS capability information is received by the network entity via air interface.

26. The method of any of claims 23-25, wherein the LP-WUS capability information is included in the UECapabilitylnformation RRC message.

27. The method of any of claims 23-26, wherein the LP-WUS capability information comprises at least one of: a list of LP-WUS supported on all the bands supported by the UE; a list of bands where LP-WUS is supported;LP-WUS support information per band; or a list of bands where LP-WUS is not supported.

28. A method comprising: receiving, by an access and mobility management function, from at least one device, low power (LP)-wake up signal (WUS) capability information; and transmitting, by the an access and mobility management function, to the at least one device, LP-WUS band information.

29. The method of claim 28, wherein the at least one device comprises a base station.

30. The method of claim 28 or 29, wherein the LP-WUS band information isselected from the LP-WUS band capability information.

31. The method of any of claims 28-30, wherein the LP-WUS band information is transmitted with the paging message.

32. The method of any of claims 28-31, wherein the LP-WUS capability information comprises at least one of: a list of LP-WUS supported on all the bands supported by the UE; a list of bands where LP-WUS is supported; LP-WUS support information per band; or a list of bands where LP-WUS is not supported.

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