Serving cell measurement

Abstract

Disclosed are methods, systems, and computer-readable media to perform operations that include determining whether a user equipment (UE) meets an entry condition of low power wake-up signal (LP-WUS) monitoring or whether the UE meets an exit condition of the LP-WUS monitoring, wherein the UE comprises a main radio (MR) and an LP-WUS radio (LR); and in response to determining that the UE fails to meet the entry condition of the LP-WUS monitoring or that the UE meets the exit condition of the LP-WUS monitoring: performing a serving cell measurement using the MR.

Description

Attorney Docket No. 56990-0040W01 / P68583WO1SERVING CELL MEASUREMENTCROSS-REFERENCE TO RELATED APPLICATIONS

[0001] This application claims priority of and benefit to U.S. Provisional Patent Application No. 63 / 680,572, filed August 7, 2024, entitled “SERVING CELL MEASUREMENT,” the disclosure of which is considered part of the disclosure of this application, and is incorporated by reference in its entirety into this application.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 wireless network protocols, such as protocols described in various telecommunication standards promulgated by the Third Generation Partnership Project (3GPP). Example wireless communication networks include time-division multiple access (TDMA) networks, frequency-division multiple access (FDMA) networks, orthogonal frequency-division multiple access (OFDMA) networks, Long Term Evolution (LTE), and Fifth Generation New Radio (5G NR). The wireless communication networks facilitate mobile broadband service using technologies such as OFDM, multiple input multiple output (MIMO), advanced channel coding, massive MIMO, beamforming, and / or other features.Attorney Docket No. 56990-0040W01 / P68583WO1SUMMARY

[0003] According to one innovative aspect of the present disclosure, a method for wireless communication is disclosed. In one aspect, the method can include determining whether a user equipment (UE) meets an entry condition of low power wake-up signal (LP-WUS) monitoring or whether the UE meets an exit condition of the LP-WUS monitoring, wherein the UE includes a main radio (MR) and an LP-WUS radio (LR); and in response to determining that the UE fails to meet the entry condition of the LP-WUS monitoring or that the UE meets the exit condition of the LP-WUS monitoring: performing a serving cell measurement using the MR.

[0004] Other aspects include a user equipment (UE), apparatuses, systems, and computer programs for performing the aforementioned method.

[0005] The innovative method can include other optional features. For example, in some implementations, wherein determining that the UE fails to meet the entry condition of the LP- WUS monitoring or that the UE meets the exit condition of the LP-WUS monitoring includes determining that a signal quality of a signal received by the UE from a serving base station is less than a particular threshold value.

[0006] In some implementations, the method further including: in response to determining that the UE meets the entry condition of the LP-WUS monitoring: performing the LP-WUS monitoring and the serving cell measurement using the LR.

[0007] In some implementations, the method further including: in response to determining that the UE meets the exit condition of the LP-WUS monitoring: performing the serving cell measurement using the MR.

[0008] According to another innovative aspect of the present disclosure, a method for wireless communication is disclosed. In one aspect, the method can include determining information corresponding to a neighbor cell measurement using a main radio (MR) of a user equipment (UE); and enabling a serving cell measurement mode based on the information corresponding to the neighbor cell measurement.

[0009] Other aspects include a user equipment (UE), apparatuses, systems, and computer programs for performing the aforementioned method.

[0010] The innovative method can include other optional features. For example, in some implementations, wherein determining the information corresponding to the neighbor cell measurement includes determining that no neighbor cell measurement is performed using the MR, in response to determining that no neighbor cell measurement is performed using the MR: enabling a serving cell measurement offload mode; performing a serving cell measurement using a low power wake-up signal radio (LR).Attorney Docket No. 56990-0040W01 / P68583WO1

[0011] In some implementations, wherein determining the information corresponding to the neighbor cell measurement includes determining that the neighbor cell measurement is performed with relaxation using the MR, in response to determining that the neighbor cell measurement is performed with relaxation using the MR: enabling a serving cell measurement relaxation mode; and performing a serving cell measurement using a low power wake-up signal radio (LR) and the MR.

[0012] In some implementations, wherein conditions for performing the neighbor cell measurement with relaxation include one or more of: (i) low mobility of the UE; (ii) the UE being not located at a cell edge; or (iii) the UE meeting an entry condition of low power wakeup signal (LP-WUS) monitoring.

[0013] In some implementations, wherein determining the information corresponding to the neighbor cell measurement includes determining that the neighbor cell measurement is performed with deep relaxation using the MR, in response to determining that the neighbor cell measurement is performed with deep relaxation using the MR: enabling a serving cell measurement offload mode; and performing a serving cell measurement using a low power wake-up signal radio (LR).

[0014] In some implementations, wherein conditions for performing the neighbor cell measurement with deep relaxation include one or more of: (i) low mobility of the UE and the UE being not located at a cell edge; (ii) the UE meeting a serving cell measurement offload threshold; or (iii) the UE being stationary.

[0015] In some implementations, wherein the UE meeting the serving cell measurement offload threshold includes a signal quality of a signal received by the UE from a serving base station being more than the serving cell measurement offload threshold.

[0016] In some implementations, wherein determining the information corresponding to the neighbor cell measurement includes determining that the neighbor cell measurement is performed using the MR without relaxation, in response to determining that the neighbor cell measurement is performed using the MR without relaxation: enabling a serving cell measurement normal mode; and performing a serving cell measurement using the MR.

[0017] According to another innovative aspect of the present disclosure, a method for wireless communication is disclosed. In one aspect, the method can include enabling a serving cell measurement offload mode; performing low power wake-up signal (LP-WUS) monitoring and a serving cell measurement using a low power wake-up signal radio (LR); in response to a configuration specifying that a neighbor cell measurement is initiated based on the serving cell measurement using a main radio (MR) of a user equipment (UE), exiting the serving cellAttorney Docket No. 56990-0040W01 / P68583WO1 measurement offload mode; and performing neighbor cell measurement initiation / relaxation condition evaluation.

[0018] Other aspects include a user equipment (UE), apparatuses, systems, and computer programs for performing the aforementioned method.

[0019] The innovative method can include other optional features. For example, in some implementations, wherein performing the neighbor cell measurement initiation / relaxation condition evaluation includes: determining a signal quality of a signal received by the UE from a serving base station; in response to the signal quality being more than an exit condition of the LP-WUS monitoring and less than a serving cell measurement offload threshold: enabling a serving cell measurement relaxation mode; and performing the serving cell measurement using the MR.

[0020] In some implementations, the method further including: determining that an exit condition of the LP-WUS monitoring is not met, in response to the determining: not performing the neighbor cell measurement, wherein a threshold value used for the exit condition is more than a threshold value for initiating the neighbor cell measurement.

[0021] In some implementations, the method further including: determining a signal quality of a signal received by the UE on the LR from a serving base station; and performing the neighbor cell measurement initiation / relaxation condition evaluation using the signal quality of the signal received on the LR.

[0022] In some implementations, the method further including: performing the serving cell measurement using the MR; determining a second signal quality of a second signal received by the UE on the MR from the serving base station; and performing the neighbor cell measurement initiation / relaxation condition evaluation using the second signal quality of the second signal received on the MR.

[0023] According to another innovative aspect of the present disclosure, a method for wireless communication is disclosed. In one aspect, the method can include performing low power wake-up signal (LP-WUS) monitoring; determining that a user equipment (UE) is not in a serving cell measurement offload mode or a serving cell measurement relaxation mode; in response to the determining: monitoring paging using a main radio (MR) of the UE.

[0024] Other aspects include a user equipment (UE), apparatuses, systems, and computer programs for performing the aforementioned method.

[0025] The innovative method can include other optional features. For example, in some implementations, wherein determining that the UE is not in the serving cell measurement offload mode or the serving cell measurement relaxation mode includes: determining that aAttorney Docket No. 56990-0040W01 / P68583WO1 neighbor cell measurement is initiated and a neighbor cell measurement relaxation condition is not met, in response to determining that the neighbor cell measurement is initiated and the neighbor cell measurement relaxation condition is not met: exiting the LP-WUS monitoring.

[0026] In some implementations, wherein the neighbor cell measurement relaxation condition includes a condition of relaxation for the neighbor cell measurement or a condition of deep relaxation for the neighbor cell measurement.

[0027] The details of one or more embodiments of these systems and methods are set forth in the accompanying drawings and the description below. Other features, objects, and advantages of these systems and methods will be apparent from the description and drawings, and from the claims.Attorney Docket No. 56990-0040W01 / P68583WO1BRIEF DESCRIPTION OF THE FIGURES

[0028] FIG. 1 illustrates a wireless network, according to some implementations.

[0029] FIG. 2 illustrates entering and exiting LP-WUS monitoring according to some implementations.

[0030] FIG. 3 illustrates an example process of performing serving cell measurement based on LP-WUS monitoring, according to some implementations.

[0031] FIG. 4 illustrates different modes of UE based on LP-WUS monitoring and neighbor cell measurement, according to some implementations.

[0032] FIGS. 5A and 5B illustrate different modes of UE with respect to the location of the UE in a serving cell, according to some implementations.

[0033] FIG. 6 illustrates an example process of performing serving cell measurement based on neighbor cell measurement, according to some implementations.

[0034] FIG. 7 illustrates an example serving cell.

[0035] FIG. 8 illustrates an example process of performing neighbor cell measurement initiation / relaxation condition evaluation, according to some implementations.

[0036] FIG. 9 illustrates an example process of disabling LP-WUS monitoring based on failing to meet neighbor cell measurement relaxation conditions.

[0037] FIG. 10 is a block diagram of an example UE, according to some implementations.

[0038] FIG. 11 is a block diagram of an example access node, according to some implementations.

[0039] FIG. 12 is a block diagram of an example apparatus, according to some implementations.

[0040] Like reference symbols in the various drawings indicate like elements.Attorney Docket No. 56990-0040W01 / P68583WO1DETAILED DESCRIPTION

[0041] This disclosure describes methods and systems for enabling or disabling serving cell measurement offload mode or relaxation mode based on low power wake-up signal (LP-WUS) monitoring or neighbor cell measurement, or both.

[0042] In some implementations, a user equipment (UE) includes a main radio (MR) and an LP-WUS radio (LR). In some implementations, a serving cell measurement offloading / relaxation mode for the UE is enabled or disabled based on neighbor cell measurement and LP-WUS monitoring. If the LP-WUS radio is not activated for LP-WUS monitoring, the UE does not offload some or all of the serving cell measurements from an MR to the LR. If the neighbor cell measurement on the MR is not relaxed to an extent to achieve a good UE power-saving performance (e.g., power consumption is more than a predetermined power threshold), the UE does not offload / relax the serving cell measurement from the MR to the LR. If the power consumed by serving cell measurement on the MR cannot be reduced, the UE does not activate the LR for LP-WUS monitoring.

[0043] In some implementations, if an LP-WUS monitoring entry condition is not met, the UE performs serving cell measurement on the MR, and a serving cell measurement offloading / relaxation mode is still disabled. In some implementations, if the LP-WUS monitoring entry condition is met, the serving cell measurement offloading / relaxation can be enabled / disabled based on neighbor cell measurement on the MR. In some implementations, if neighbor cell measurement is initiated based on serving cell measurement on the MR, the UE exits the serving cell measurement offload mode and performs a neighbor cell measurement initiation / relaxation condition evaluation. In some implementations, when the serving cell measurement offload / relaxation mode is disabled, the UE does not monitor the LR for paging reception.

[0044] FIG. 1 illustrates a wireless network 100, according to some implementations. The wireless network 100 includes a UE 102 and a base station 104 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.

[0045] In some implementations, the wireless network 100 may be a Non-Standalone (NS A) network that incorporates Long Term Evolution (LTE) and Fifth Generation (5G) New Radio (NR) communication standards as defined by the Third Generation Partnership Project (3 GPP) technical specifications. For example, the wireless network 100 may be an E-UTRA (EvolvedAttorney Docket No. 56990-0040W01 / P68583WO1Universal Terrestrial Radio Access)-NR Dual Connectivity (EN-DC) network, or an NR- EUTRA Dual Connectivity (NE-DC) network. In some other implementations, the wireless network 100 may be a Standalone (SA) network that incorporates only 5G NR. Furthermore, other types of communication standards are possible, including future 3 GPP systems (e.g., Sixth Generation (6G)), Institute of Electrical and Electronics Engineers (IEEE) 802.11 technology (e.g., IEEE 802.11a; IEEE 802.11b; IEEE 802.11g; IEEE 802.11- 2007; IEEE 802.1 In; IEEE 802.11-2012; IEEE 802.1 lac; or other present or future developed IEEE 802.11 technologies), IEEE 802.16 protocols (e.g., WMAN, WiMAX, etc.), 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 3G, 4G, and / or systems subsequent to 5G (e.g., 6G).

[0046] In the wireless network 100, the UE 102 and any other UE in the system may be, for example, any of laptop computers, smartphones, tablet computers, machine-type devices such as smart meters or specialized devices for healthcare, intelligent transportation systems, or any other wireless device. In 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.

[0047] 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 various combinations of application-specific circuitry and baseband circuitry. 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.

[0048] In various implementations, aspects of the transmit circuitry 112, receive circuitry 114, and 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 variousAttorney Docket No. 56990-0040W01 / P68583WO1 operations, such as those described elsewhere in this disclosure related to a UE. For instance, the control circuitry 110 can estimate CSI in response to CSI-RS from the base station 104.

[0049] 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) along with carrier aggregation. The transmit circuitry 112 may be configured to receive block data from the control circuitry 110 for transmission across the air interface 108.

[0050] 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 along with carrier aggregation. 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, etc.) structured within data blocks that are carried by the physical channels.

[0051] 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, an E-UTRAN, a nonterrestrial 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 or 5G wireless network 100, and the term “E-UTRAN” or the like may refer to a base station 104 that operates in an LTE or 4G wireless network 100. The UE 102 utilizes connections (or channels) 106A, 106B, each of which includes a physical communications interface or layer.

[0052] The base station 104 circuitry may include control circuitry 116 coupled with transmit circuitry 118 and receive circuitry 120. The transmit circuitry 118 and receive circuitry 120 may each be coupled 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, 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.

[0053] 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 a UMTS protocol, a 3 GPP LTE protocol, an Advanced long term evolution (LTE- A) protocol, a LTE-based access to unlicensed spectrum (LTE-U), a 5G protocol, a NR protocol, an NR-based access to unlicensed spectrum (NR-U) protocol, and / or any other communications protocol(s). In implementations, the UE 102 may directly exchange communication data via a ProSe interface. The ProSe interface may alternatively be referredAttorney Docket No. 56990-0040W01 / P68583WO1 to as a sidelink (SL) 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).

[0054] LP-WUS Monitoring Impact on Serving Cell Measurement

[0055] LP-WUS monitoring refers to a process of monitoring for the Low Power Wake-Up Signal (LP-WUS). This involves a UE maintaining a low-power state while periodically or continuously listening for the LP-WUS. The detection of this LP-WUS indicates that the network has a message or other activity for the UE, prompting it to wake up and become fully operational. LP-WUS monitoring can allow the UE to remain in a low-power state and wake up when necessary to handle important communications, which can extend battery life. An entry condition for LP-WUS monitoring defines when and how the UE transitions into LP- WUS monitoring. For example, when the signal quality (e.g., signal strength measured by Reference Signal Received Power (RSRP)) that the UE receives from the serving base station is more than a predetermined threshold, the UE can enable LP-WUS monitoring. For example, if the UE is in an idle or low-activity state, in which the UE is not actively engaged in significant data transmission or reception, the UE can enable LP-WUS monitoring. For example, the network that supports LP-WUS monitoring can signal the UE to enable the LP-WUS monitoring. For example, in the absence of any high-priority tasks or activities that require continuous monitoring or immediate response, such as ongoing voice or video calls, critical data sessions, or real-time applications, the UE can enable the LP-WUS monitoring. Additionally or alternatively, the UE can enable the LP-WUS monitoring based on user- configured settings.

[0056] FIG. 2 illustrates entering and exiting LP-WUS monitoring according to some implementations. In some implementations, when the entry condition LP-WUS monitoring is not met or when the exit condition is met, the UE performs serving cell measurement (measurement of signal quality that the UE receives from a serving base station) on an MR of the UE, while no serving cell measurement is performed on a LR of the UE. The UE is not in a serving cell measurement offload mode or a serving cell measurement relaxation mode. The serving cell measurement offload mode refers to a state where the UE offloads the responsibility of measuring the serving cell from the MR to the LR. The serving cell measurement relaxation mode refers to a state where the UE performs serving cell measurement less frequently on the MR compared to a normal mode.Attorney Docket No. 56990-0040W01 / P68583WO1

[0057] In some implementations, when the entry condition for LP-WUS monitoring is met (e.g., a signal quality of signals that the UE receives from a serving base station > a predetermined threshold), the UE can enable LP-WUS monitoring and activate the LR. If the LR is activated, both LP-WUS monitoring and serving cell measurement can be performed on the LR. When the exit condition for LP-WUS monitoring is met, the LR is deactivated, and the UE can monitor paging using the MR and perform serving cell measurement on the MR. The paging messages are sent by the network to alert the UE of incoming calls, messages, or other services. The UE can be in a low-power state (e.g., serving cell measurement relaxation mode or serving cell measurement offload mode). In this low-power state, the UE does not maintain a continuous connection with the network but periodically checks for paging messages.

[0058] FIG. 3 illustrates an example process 300 of performing serving cell measurement based on LP-WUS monitoring, according to some implementations. The process 300 is described as being performed by a UE, such as UE 102 of FIG. 1 or UE 1000 of FIG. 10. The process 300 can be modified or reconfigured to include additional, fewer, or different steps (not shown in FIG. 3), which can be performed in the order shown or in a different order.

[0059] At 302, the UE determines whether the UE meets an entry condition (e.g., the signal quality of signals received by the UE from the serving base station is more than or equal to a predetermined threshold value) or whether the UE meets an exit condition (e.g., the signal quality of signals received by the UE from the serving base station is less than the predetermined threshold value) of low power wake-up signal (LP-WUS) monitoring. The UE includes an MR and an LR.

[0060] At 304, in response to determining that the UE fails to meet the entry condition of the LP-WUS monitoring (e.g., the signal quality of signals received by the UE from the serving base station is less than the predetermined threshold value) or that the UE meets the exit condition of the LP-WUS monitoring, the UE performs a serving cell measurement using the MR. For example, if the UE is at a location where the UE receives weak signals from the serving base station, the UE fails to meet the entry condition of the LP-WUS monitoring or meets an exit condition of the LP-WUS monitoring. Accordingly, the UE deactivates the LR and performs serving cell measurement using the MR.

[0061] In some implementations, in response to determining that the UE meets the entry condition of the LP-WUS monitoring, the UE activates the LR of the UE and performs the LP-Attorney Docket No. 56990-0040W01 / P68583WO1WUS monitoring and the serving cell measurement using the LR. For example, if the UE is at a location where the UE receives strong signals from the serving base station, the UE meets the entry condition of the LP-WUS monitoring. Accordingly, the UE activates the LR and performs the LP-WUS monitoring and serving cell measurement using the LR.

[0062] In some implementations, the UE determines whether the UE meets an exit condition (e.g., the signal quality of signals received by the UE from the serving base station is less than the predetermined threshold value) of the LP-WUS monitoring. In response to determining that the UE meets the exit condition of the LP-WUS monitoring, the UE deactivates the LR and performs the serving cell measurement using the MR. For example, if the UE moves from a location where the UE receives strong signals to a location where the UE receives weak signals from the serving base station, the UE meets an exit condition of the LP-WUS monitoring. Accordingly, the UE deactivates the LR, exits the LP-WUS monitoring, and performs serving cell measurement using the MR.

[0063] Serving Cell Measurement Offloading / Relaxation Based on Neighbor Cell Measurement

[0064] In some implementations, the UE can enable or disable a serving cell measurement offload mode or a serving cell measurement relaxation mode based on neighbor cell measurement activity on the MR. FIG. 4 illustrates different modes of UE based on LP-WUS monitoring and neighbor cell measurement, according to some implementations.

[0065] In some implementations, if there is no neighbor cell measurement on the MR, a serving cell measurement offload mode can be enabled. The UE can perform serving cell measurement on the LR. As shown in # 1 scenario of FIG. 4, no neighbor cell measurement and no serving cell measurement are performed on the MR. LP-WUS monitoring is enabled, and all the serving cell measurements are offloaded from the MR to the LR.

[0066] In some examples, high priority (HP) neighbor cell measurement can be performed in a relaxation mode on the MR transceiver or a deep relaxation mode on the MR transceiver. HP neighbor cell measurement refers to the process where the UE prioritizes the measurement of the signal / strength of neighboring cells. The deep relaxation mode of the HP neighbor cell measurement may refer to performing the HP neighbor cell measurement with deep relaxation requirements (e.g., a longer measurement interval) or disabling the HP neighbor cell measurement. HP neighbor measurement refers to the measurement on a frequency configured with high priority. For example, measurements of neighboring cells on adjacent frequenciesAttorney Docket No. 56990-0040W01 / P68583WO1 may be of high priority, e.g., in scenarios involving inter-frequency measurement in an IDLE / INACTIVE state. For example, measurements of neighboring cells that are frequently involved in handovers or cell reselection, such as those at the edges of a cell’s coverage area, may be of high priority. The priority of neighbor cell measurement is configured by the network. The priority of neighbor cell measurement refers to the importance assigned to the process of monitoring and evaluating the signal quality of neighbor cells. This priority can determine how frequently and with what detail these neighbor cell measurements are conducted.

[0067] In some implementations, if neighbor cell measurement (non-HP or HP) is performed with relaxation (less frequently) on the MR, the UE can enable a serving cell measurement relaxation mode. The UE can perform serving cell measurement on the MR with relaxation and also on the LR. In the relaxation mode, the UE offloads some of the serving cell measurements from the MR to the LR. neighbor cell measurement can be intra-frequency measurement, inter-frequency measurement with a priority lower than or equal to the priority of serving cell / frequency, or inter-radio access technology (inter-RAT) measurement with a priority lower than or equal to the priority of serving cell / frequency. As shown in # 2 scenario of FIG. 4, neighbor cell measurement and serving cell measurement are performed with relaxation on the MR. LP-WUS monitoring is enabled, and some of the serving cell measurements are offloaded from the MR to the LR.

[0068] The conditions for neighbor cell measurement relaxation can include: (i) the UE has a low mobility condition, as defined in, e.g., release 16 (R16) of 3 GPP for determining power saving (PS) criteria; (ii) the UE is not located at a cell edge, as defined in, e.g., R16 PS criteria; or (iii) LP-WUS entry condition is met.

[0069] In some implementations, if neighbor cell measurement with deep relaxation (minimal neighbor cell measurements) is performed on the MR, the UE can enable a serving cell measurement offload mode, in which the UE can perform serving cell measurement on the LR. As shown in # 3 scenario of FIG. 4, neighbor cell measurement is performed with a deep relaxation on the MR, and serving cell measurement is performed with a deep relaxation or no serving cell measurement is performed on the MR. LP-WUS monitoring is enabled, and most of the serving cell measurements are offloaded from the MR to the LR.

[0070] The conditions for neighbor cell measurement deep relaxation or HP measurement relaxation condition can include: (i) both conditions (i) & (ii) for neighbor cell measurementAttorney Docket No. 56990-0040W01 / P68583WO1 relaxation are met; (ii) serving cell measurement offloading condition (e.g., the signal quality of the serving cell is more than a predetermined threshold) is met; or (iii) the UE is stationary.

[0071] In some implementations, if neighbor cell measurement is performed on the MR without any relaxation (neighbor cell measurement is performed regularly on the MR), the UE does not enable a serving cell measurement relaxation / offload mode. The UE performs serving cell measurement on the MR. As shown in # 0 scenario of FIG. 4, in some examples, if serving cell measurement is regularly performed on the MR and no neighbor cell measurement is performed on the MR, LP-WUS monitoring is disabled, and the LR is deactivated. In some examples, if both serving cell measurement and neighbor cell measurement are regularly performed on the MR, LP-WUS monitoring is disabled and the LR is deactivated.

[0072] FIGS. 5A and 5B illustrate different modes of UE with respect to the location of the UE in a serving cell, according to some implementations. FIG. 5A illustrates an example serving cell 500. The areas around the cell center, in order from near to far, include area 502, area 504, area 506, and area 508. The signal quality received in area 502, area 504, area 506, and area 508 gradually becomes weak. If the UE is located in area 502, the signal quality received from the serving base station is high, while if the UE is located in area 508, the signal quality received from the serving base station is low.

[0073] In some implementations, as shown in FIG. 5B, the UE is located in area 508, and the neighbor cell measurement is not in a relaxation mode. The UE performs both intra-frequency neighbor cell measurements and inter-frequency neighbor cell measurements. The interfrequency neighbor cell measurements include HP neighbor cell measurement and non-HP neighbor cell measurement. The intra-frequency measurements refer to measurements of cells operating on the same frequency as the serving cell. The intra-frequency measurements refer to measurements of cells operating on different frequencies than the serving cell. The MR is activated and performs serving cell measurement regularly in a serving cell measurement normal mode.

[0074] In some implementations, as shown in FIG. 5B, the UE is located in the area 502. The UE does not perform intra-frequency neighbor cell measurement and non-HP neighbor cell measurement. The UE performs HP neighbor cell measurement with deep relaxation. The LR is activated and performs serving cell measurement. The MR is in a serving cell measurement offload mode, and all the serving cell measurements are offloaded from the MR to the LR.Attorney Docket No. 56990-0040W01 / P68583WO1

[0075] In some implementations, as shown in FIG. 5B, the UE is located in area 504 or area 506. In some examples, the UE initiates intra-frequency neighbor cell measurement and nonHP neighbor cell measurement and performs neighbor cell measurements with relaxation. The MR is in a serving cell measurement relaxation mode and the MR performs serving cell measurement and neighbor cell measurement. In some examples, the UE initiates intra- frequency neighbor cell measurement and non-HP neighbor cell measurement and performs neighbor cell measurements with deep relaxation. The MR is in a serving cell measurement offload mode, and all the serving cell measurements are offloaded from the MR to the LR. A signal quality threshold for initiating intra-frequency neighbor cell measurement is more than a signal quality threshold for initiating inter-frequency neighbor cell measurement. For example, the signal quality threshold for initiating intra-frequency neighbor cell measurement is -75 dBm, while the signal quality threshold for initiating inter-frequency neighbor cell measurement is -105 dBm.

[0076] FIG. 6 illustrates an example process 600 of performing serving cell measurement based on neighbor cell measurement, according to some implementations. The process 600 is described as being performed by a UE, such as UE 102 of FIG. 1 or UE 1000 of FIG. 10. The process 600 can be modified or reconfigured to include additional, fewer, or different steps (not shown in FIG. 6), which can be performed in the order shown or in a different order.

[0077] At 602, the UE determines information corresponding to a neighbor cell measurement using an MR of the UE.

[0078] At 604, the UE enables a serving cell measurement mode based on the information corresponding to the neighbor cell measurement.

[0079] In some implementations, if no neighbor cell measurement is performed using the MR, the UE enables a serving cell measurement offload mode, activates an LR, and performs serving cell measurement using the LR.

[0080] In some implementations, if non-HP neighbor cell measurement is performed with relaxation using the MR, the UE enables a serving cell measurement relaxation mode and performs a serving cell measurement using the LR and the MR. In some implementations, conditions for performing the non-HP neighbor cell measurement with relaxation include one or more of: (i) low mobility of the UE; (ii) the UE not being located at a cell edge; or (iii) the UE meeting an entry condition of low power wake-up signal (LP-WUS) monitoring.Attorney Docket No. 56990-0040W01 / P68583WO1

[0081] In some implementations, if non-HP neighbor cell measurement is performed with deep relaxation using the MR, the UE enables a serving cell measurement offload mode and performs a serving cell measurement using the LR. In some implementations, conditions for performing the non-HP neighbor cell measurement with deep relaxation include one or more of: (i) low mobility of UE and the UE being not located at a cell edge; (ii) the UE meeting a serving cell measurement offload threshold; or (iii) the UE being stationary. In some examples, if a signal quality of a signal received by the UE from a serving base station is more than the serving cell measurement offload threshold, the UE meets the serving cell measurement offload threshold.

[0082] In some implementations, if the neighbor cell measurement is performed using the MR without relaxation, the UE enables a serving cell measurement normal mode; and performs serving cell measurement using the MR.

[0083] Neighbor Cell Measurement Condition Based on MR Measurement

[0084] In some implementations, the UE is in a serving cell measurement offload mode and no serving cell measurement is performed on the MR. However, if neighbor cell measurement is initiated based on serving cell measurement performed on the MR (e.g., the serving cell measurement performed on an LR cannot be used for neighbor measurement initiation condition evaluation), the UE can exit the serving cell measurement offload mode, perform serving cell measurement on an MR, and evaluate whether to initiate / relax a neighbor cell measurement based on the serving cell measurement (e.g., signal quality of the serving cell) on the MR.

[0085] In some examples, an offload threshold can be used to control switching from a serving cell measurement offload mode to a serving cell measurement relaxation mode. The offload threshold is more than or equal to the exit condition (represented by signal quality) of LP-WUS monitoring. If the exit condition of LPWUS < signal quality of the UE < the offload threshold, the UE can enter the serving cell measurement relaxation mode and start to perform serving cell measurement on the MR.

[0086] In some examples, the UE does not initiate and perform non-HP neighbor cell measurement when LP-WUS monitoring is enabled. When the exit condition of LP-WUS monitoring is not met (the LP-WUS monitoring is still enabled), UE does not perform non-HP neighbor cell measurement. The network configures the exit condition of LP-WUS monitoring to be more than a signal quality threshold for initiating non-HP neighbor cell measurement.Attorney Docket No. 56990-0040W01 / P68583WO1When the exit condition of LP-WUS monitoring is met, the UE can exit LP-WUS monitoring on the LR and start to perform serving cell measurement on the MR.

[0087] In some examples, if performing the serving cell measurement is limited to the LR (e.g., the MR does not perform serving cell measurement), the UE can use the LR to perform neighbor cell measurement initiation / relaxation condition evaluation. When the exit condition of LP-WUS monitoring is met, the UE activates the MR to perform serving cell measurement and uses the MR to perform the neighbor cell measurement initiation / relaxation condition evaluation. The initiation condition for neighbor cell measurement is Reference Signal Received Power (RSRP) / Reference Signal Received Quality (RSRQ) threshold. For example, if signal quality of the serving cell (serving cell measurement result) is less than an RSRP / RSRQ threshold, the MR starts to perform neighbor cell measurement. The relaxation condition for neighbor cell measurement is low mobility of the UE and / or the UE being not located at a cell edge. For example, if the serving cell measurement result suggests low mobility of the UE and / or the UE being not located at a cell edge, the UE performs the neighbor cell measurement with relaxation.

[0088] FIG. 7 illustrates an example serving cell 700. The areas around the cell center, in order from near to far, include area 702, area 704, and area 706. The signal quality received in area 702, area 704, and area 706 gradually becomes weaker.

[0089] If the UE is located in area 702, the signal quality received from the serving base station is high, and the UE is in a serving cell measurement offload mode. In this offload mode, the UE enables LP-WUS monitoring. The LR performs serving cell measurement. The MR does not perform serving cell measurement. The MR either performs neighbor cell measurement with deep relaxation or does not perform neighbor cell measurement at all. The offload threshold can be used to control switching from a serving cell measurement offload mode in area 702 to a serving cell measurement relaxation mode in area 704. For example, the offload threshold can be a signal quality threshold value.

[0090] If the UE is located in area 704, the signal quality received from the serving base station is medium, and the UE is in a serving cell measurement relaxation mode. In this relaxation mode, the UE enables LP-WUS monitoring. The LR performs serving cell measurement. The MR performs serving cell measurement with relaxation. The MR performs neighbor cell measurement with relaxation.Attorney Docket No. 56990-0040W01 / P68583WO1

[0091] If the UE is located in area 706, the signal quality received from the serving base station is low, and the UE is in a serving cell measurement normal mode. In this normal mode, the UE disables LP-WUS monitoring. The LR does not perform serving cell measurement. The MR performs serving cell measurements regularly. The MR performs neighbor cell measurements regularly.

[0092] FIG. 8 illustrates an example process 800 of performing neighbor cell measurement initiation / relaxation condition evaluation, according to some implementations. The process 800 is described as being performed by a UE, such as UE 102 of FIG. 1 or UE 1000 of FIG. 10. The process 800 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.

[0093] At 802, the UE enables a serving cell measurement offload mode.

[0094] At 804, in the serving cell measurement offload mode, the UE performs LP-WUS monitoring and serving cell measurement using an LR.

[0095] At 806, in response to a configuration specifying that a neighbor cell measurement is initiated based on the serving cell measurement using an MR of the UE, the UE exits the serving cell measurement offload mode and performs neighbor cell measurement initiation / relaxation condition evaluation. The configuration can be defined in 3 GPP standards, or can be a configuration sent from the network to the UE.

[0096] In some implementations, the UE determines a signal quality of a signal received by the UE from a serving base station. In response to the signal quality being more than an exit condition of the LP-WUS monitoring and less than a serving cell measurement offload threshold, the UE enables a serving cell measurement relaxation mode and performs the serving cell measurement using the MR.

[0097] In some implementations, the UE determines that an exit condition of the LP-WUS monitoring is not met. In response to not meeting the exit condition, the UE does not perform a non-high priority (HP) neighbor cell measurement. In some examples, a threshold value used for the exit condition of the LP-WUS monitoring is more than a threshold value for initiating the non-HP neighbor cell measurement. For example, a threshold value used for the exit condition is -80 dBm, while a threshold value for initiating the non-HP neighbor cell measurement is -100 dBm.

[0098] In some implementations, the UE determines a signal quality of a signal received by the UE on the LR from a serving base station and performs the neighbor cell measurementAttorney Docket No. 56990-0040W01 / P68583WO1 initiation / relaxation condition evaluation using the signal quality of the signal received on the LR.

[0099] In some implementations, the UE activates the MR to perform the serving cell measurement, determines a signal quality of a signal received by the UE on the MR from the serving base station, and performs the neighbor cell measurement initiation / relaxation condition evaluation using the signal quality of the signal received on the MR.

[0100] Measurement Impact on LP-WUS Monitoring

[0101] In some implementations, if no serving cell measurement offloading / relaxation is enabled (the UE is in a serving cell measurement normal mode), the UE does not monitor an LP-WUS signal for paging reception. If neighbor cell measurement is initiated and one or more neighbor cell measurement relaxation conditions are not met, the UE disables LP-WUS monitoring. Non-HP neighbor cell measurement relaxation condition can refer to a condition of relaxation or a condition of deep relaxation.

[0102] FIG. 9 illustrates an example process 900 of disabling LP-WUS monitoring based on failing to meet neighbor cell measurement relaxation conditions. The process 900 is described as being performed by a UE, such as UE 102 of FIG. 1 or UE 1000 of FIG. 10 that is described in the following sections. The process 900 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.

[0103] At 902, the UE performs LP-WUS monitoring.

[0104] At 904, the UE determines that the UE is not in a serving cell measurement offload mode or a serving cell measurement relaxation mode. For example, the UE is in a serving cell measurement normal mode.

[0105] At 906, in response to UE being not in a serving cell measurement offload mode or a serving cell measurement relaxation mode, the UE monitors paging using MR.

[0106] In some implementations, the UE determines that a neighbor cell measurement is initiated and a neighbor cell measurement relaxation condition is not met. In response to determining that the neighbor cell measurement is initiated and the neighbor cell measurement relaxation condition is not met, the UE exits the LP-WUS monitoring. In some implementations, the neighbor cell measurement relaxation condition includes a condition of relaxation for non-HP neighbor cell measurement or a condition of deep relaxation for the nonHP neighbor cell measurement.Attorney Docket No. 56990-0040W01 / P68583WO1

[0107] FIG. 10 illustrates an example UE 1000, according to some implementations. The UE 1000 may be similar to and substantially interchangeable with UE 102 of FIG. 1.

[0108] The UE 1000 may be any mobile or non-mobile computing device, such as, for example, mobile phones, computers, tablets, industrial wireless sensors (for example, microphones, pressure sensors, thermometers, motion sensors, accelerometers, inventory sensors, electric voltage / current meters, etc.), video devices (for example, cameras, video cameras, etc.), wearable devices (for example, a smartwatch), relaxed-IoT devices.

[0109] The UE 1000 may include processor circuitry 1002, RF interface circuitry 1004, memory / storage 1006, user interface 1008, sensors 1010, driver circuitry 1012, power management integrated circuit (PMIC) 1014, one or more antenna(s) 1016, and battery 1018. The components of the UE 1000 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. 10 is intended to show a high-level view of some of the components of the UE 1000. However, some of the components shown may be omitted, additional components may be present, and different arrangements of the components shown may occur in other implementations.

[0110] The components of the UE 1000 may be coupled with various other components over one or more interconnects 1020, which may represent any type of interface, input / output, bus (local, system, or expansion), transmission line, trace, optical connection, etc., that allows various circuit components (on common or different chips or chipsets) to interact with one another.

[0111] The processor circuitry 1002 may include processor circuitry such as, for example, baseband processor circuitry (BB) 1022 A, central processor unit circuitry (CPU) 1022B, and graphics processor unit circuitry (GPU) 1022C. The processor circuitry 1002 may include any type of circuitry, or processor circuitry that executes or otherwise operates computerexecutable instructions, such as program code, software modules, or functional processes from memory / storage 1006 to cause the UE 1000 to perform operations as described herein.

[0112] In some implementations, the baseband processor circuitry 1022A may access a communication protocol stack 1024 in the memory / storage 1006 to communicate over a 3 GPP- compatible network. In general, the baseband processor circuitry 1022 A 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 PDU layer; and perform control plane functions at a PHY layer, MAC layer, RLC layer, PDCP layer, RRCAttorney Docket No. 56990-0040W01 / P68583WO1 layer, and a non-access stratum layer. In some implementations, the PHY layer operations may additionally / altematively be performed by the components of the RF interface circuitry 1004. The baseband processor circuitry 1022 A may generate or process baseband signals or waveforms that carry information in 3 GPP-compatible networks. In some implementations, the waveforms for NR may be based on cyclic prefix orthogonal frequency division multiplexing (OFDM) “CP-OFDM” in the uplink or downlink, and discrete Fourier transform spread OFDM “DFT-S-OFDM” in the uplink.

[0113] The memory / storage 1006 may include one or more non-transitory, computer-readable media that include instructions (for example, communication protocol stack 1024) that may be executed by one or more of the processor circuitry 1002 to cause the UE 1000 to perform various operations described herein. The memory / storage 1006 includes any type of volatile or non-volatile memory that may be distributed throughout the UE 1000. In some implementations, some of the memory / storage 1006 may be located on the processor circuitry 1002 itself (for example, LI and L2 cache), while other memory / storage 1006 is external to the processor circuitry 1002 but accessible thereto via a memory interface. The memory / storage 1006 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.

[0114] The RF interface circuitry 1004 may include transceiver circuitry and a radio frequency front module (RFEM) that allows the UE 1000 to communicate with other devices over a radio access network. The RF interface circuitry 1004 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.

[0115] In the receive path, the RFEM may receive a radiated signal from an air interface via antenna(s) 1016 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 of the processor circuitry 1002.

[0116] 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) 1016. In various implementations, the RF interface circuitryAttorney Docket No. 56990-0040W01 / P68583WO11004 may be configured to transmit / receive signals in a manner compatible with NR access technologies.

[0117] The antenna(s) 1016 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 into electrical signals. The antenna elements may be arranged into one or more antenna panels. The antenna(s) 1016 may have antenna panels that are omnidirectional, directional, or a combination thereof to enable beamforming and multiple input, multiple output communications. The antenna(s) 1016 may include microstrip antennas, printed antennas fabricated on the surface of one or more printed circuit boards, patch antennas, phased array antennas, etc. The antenna(s) 1016 may have one or more panels designed for specific frequency bands including bands in FR1 or FR2.

[0118] The user interface 1008 includes various input / output (VO) devices designed to enable user interaction with the UE 1000. The user interface 1008 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 displays, 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, etc.), with the output of characters, graphics, multimedia objects, and the like being generated or produced from the operation of the UE 1000.

[0119] The sensors 1010 may include devices, modules, or subsystems whose purpose is to detect events or changes in their 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 (forAttorney Docket No. 56990-0040W01 / P68583WO1 example, infrared radiation detector and the like); depth sensors; ambient light sensors; ultrasonic transceivers; microphones or other like audio capture devices; etc.

[0120] The driver circuitry 1012 may include software and hardware elements that operate to control particular devices that are embedded in the UE 1000, attached to the UE 1000, or otherwise communicatively coupled with the UE 1000. The driver circuitry 1012 may include individual drivers allowing other components to interact with or control various input / output (EO) devices that may be present within, or connected to, the UE 1000. For example, driver circuitry 1012 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 1010 and control and allow access to sensors 1010, 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.

[0121] The PMIC 1014 may manage power provided to various components of the UE 1000. In particular, with respect to the processor circuitry 1002, the PMIC 1014 may control powersource selection, voltage scaling, battery charging, or DC-to-DC conversion.

[0122] In some implementations, the PMIC 1014 may control, or otherwise be part of, various power-saving mechanisms of the UE 1000. A battery 1018 may power the UE 1000, although in some examples the UE 1000 may be mounted deployed in a fixed location, and may have a power supply coupled to an electrical grid. The battery 1018 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 1018 may be a typical lead-acid automotive battery.

[0123] FIG. 11 illustrates an example access node 1100 (e.g., a base station or gNB), according to some implementations. The access node 1100 may be similar to and substantially interchangeable with base station 104. The access node 1100 may include processor circuitry 1102, RF interface circuitry 1104, core network (CN) interface circuitry 1106, memory / storage circuitry 1108, and one or more antenna(s) 1110.

[0124] The components of the access node 1100 may be coupled with various other components over one or more interconnects 1112. The processor circuitry 1102, RF interface circuitry 1104, memory / storage circuitry 1108 (including communication protocol stack 1114), antenna(s) 1110, and interconnects 1112 may be similar to like-named elements shown and described with respect to FIG. 10. For example, the processor circuitry 1102 may includeAttorney Docket No. 56990-0040W01 / P68583WO1 processor circuitry such as, for example, baseband processor circuitry (BB) 1116A, central processor unit circuitry (CPU) 1116B, and graphics processor unit circuitry (GPU) 1116C.

[0125] The CN interface circuitry 1106 may provide connectivity to a core network, for example, a 5th Generation Core network (5GC) 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 1100 via a fiber optic or wireless backhaul. The CN interface circuitry 1106 may include one or more dedicated processors or FPGAs to communicate using one or more of the aforementioned protocols. In some implementations, the CN interface circuitry 1106 may include multiple controllers to provide connectivity to other networks using the same or different protocols.

[0126] 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 BS, gNBs, RAN nodes, eNBs, NodeBs, RSUs, TRxPs or TRPs, 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 1100 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 1100 that operates in an LTE or 4G system (e.g., an eNB). According to various implementations, the access node 1100 may be implemented as one or more of a dedicated physical device such as a macrocell base station, and / or a low power (LP) base station for providing femtocells, picocells or other like cells having smaller coverage areas, smaller user capacity, or higher bandwidth compared to macrocells.

[0127] In some implementations, all or parts of the access node 1100 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 CRAN and / or a virtual baseband unit pool (vBBUP). In these implementations, the CRAN or vBBUP may implement a RAN function split, such as a PDCP split wherein RRC and PDCP layers are operated by the CRAN / vBBUP and other L2 protocol entities are operated by the access node 1100; a MAC / PHY split wherein RRC, PDCP, RLC, and MAC layers are operated by the CRAN / vBBUP and the PHY layer is operated by the access node 1100; or a “lower PHY” split wherein RRC, PDCP, RLC, MAC layers and upper portions of the PHY layer are operated by the CRAN / vBBUP and lower portions of the PHY layer are operated by the access node 1100.Attorney Docket No. 56990-0040W01 / P68583WO1

[0128] In V2X scenarios, the access node 1100 may be or act as RSUs. The term “RoadSide Unit” or “RSU” may refer 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.

[0129] FIG. 12 is a block diagram of an example apparatus 1200, according to some implementations. In some implementations, the apparatus 1200 includes a baseband processor circuitry. For example, the apparatus 1200 may be similar to the baseband processor circuitry (BB) 1022 A of FIG. 10 or the baseband processor circuitry (BB) 1116A of FIG. 11 in some cases.

[0130] As shown, the apparatus 1200 includes one or more processors 1216 (processor 1216A, processor 1216B, etc.), and memory / storage 1208 storing instructions 1214 that are executed by the one or more processors 1216A and 1216B. Although FIG. 12 illustrates the apparatus 1200 as having multiple processors, in some cases the apparatus 1200 can include a single processor (e.g., one of processor 1216A or processor 1216B).

[0131] The apparatus 1200 is electrically and communicatively coupled, through RF interface 1212, to RF circuitry 1204 and associated antenna structure 1210. In some implementations, one or more of the processors 1216A and 1216B execute the instructions 1214 to control communications through the RF circuitry 1204 and antenna structure 1210. For example, the one or more processors 1216A and 1216B may execute the instructions 1214 to generate or process baseband signals or waveforms that carry information using wireless channels, and / or manage the radio functions of RF circuitry 1204 and antenna structure 1210, such as signal modulation, encoding, radio frequency shifting, in addition or as an alternative to the user plane or control plane functions as described with respect to the baseband processor circuitry (BB) 1022 A of FIG.10 and the baseband processor circuitry (BB) 1116A of FIG. 11. In doing so, the apparatus 1200 enables communication, e.g., wireless cellular communication, over a 3 GPP compatible network. In some implementations, RF circuitry 1204 can also be included in the apparatus 1200.

[0132] Additionally, in some implementations, the apparatus 1200 may include wireless hardware connectivity interface(s) to send / receive data to / from Near Field Communication (NFC) components, Bluetooth® components (e.g., Bluetooth® Low Energy), Wi-Fi® components, and other communication components, and a power management interface (e.g.,Attorney Docket No. 56990-0040W01 / P68583WO1 an interface to send / receive power). In such implementations, the instructions 1214 may include instructions that, when executed by one or more of the processors 1216A and 1216B, cause these processors to perform Wi-Fi communications on an 802.11 network, and / or perform Bluetooth communications.

[0133] In some implementations, one or more of the processor 1216A and the processor 1216B can be a 3G baseband processor, a 4G baseband processor, a 5G baseband processor, or other suitable baseband processor. In some implementations, one or more of the processors 1216A and 1216B may be configured as an FPGA (Field Programmable Gate Array), and / or may have dedicated hardware components, which may include an ASIC (Application Specific Integrated Circuit).

[0134] Examples

[0135] Example 1 : A method for wireless communication, the method comprising: determining whether a user equipment (UE) meets an entry condition of low power wake-up signal (LP-WUS) monitoring or whether the UE meets an exit condition of the LP-WUS monitoring, wherein the UE comprises a main radio (MR) and an LP-WUS radio (LR); and in response to determining that the UE fails to meet the entry condition of the LP-WUS monitoring or that the UE meets the exit condition of the LP-WUS monitoring: performing a serving cell measurement using the MR.

[0136] Example 2: The method of Example 1, wherein determining that the UE fails to meet the entry condition of the LP-WUS monitoring or that the UE meets the exit condition of the LP-WUS monitoring comprises determining that a signal quality of a signal received by the UE from a serving base station is less than a particular threshold value.

[0137] Example 3: The method of Example 1 or 2, further comprising: in response to determining that the UE meets the entry condition of the LP-WUS monitoring: performing the LP-WUS monitoring and the serving cell measurement using the LR.

[0138] Example 4: The method of any of Examples 1-3, further comprising: in response to determining that the UE meets the exit condition of the LP-WUS monitoring: performing the serving cell measurement using the MR.

[0139] Example 5: A method for wireless communication, the method comprising: determining information corresponding to a neighbor cell measurement using a main radio (MR) of a user equipment (UE); and enabling a serving cell measurement mode based on the information corresponding to the neighbor cell measurement.

[0140] Example 6: The method of Example 5, wherein determining the information corresponding to the neighbor cell measurement comprises determining that no neighbor cellAttorney Docket No. 56990-0040W01 / P68583WO1 measurement is performed using the MR, in response to determining that no neighbor cell measurement is performed using the MR: enabling a serving cell measurement offload mode; and performing a serving cell measurement using a low power wake-up signal radio (LR).

[0141] Example 7: The method of Example 5, wherein determining the information corresponding to the neighbor cell measurement comprises determining that the neighbor cell measurement is performed with relaxation using the MR, in response to determining that the neighbor cell measurement is performed with relaxation using the MR: enabling a serving cell measurement relaxation mode; and performing a serving cell measurement using a low power wake-up signal radio (LR) and the MR.

[0142] Example 8: The method of Example 7, wherein conditions for performing the neighbor cell measurement with relaxation comprise one or more of: (i) low mobility of the UE; (ii) the UE being not located at a cell edge; or (iii) the LTE meeting an entry condition of low power wake-up signal (LP-WUS) monitoring.

[0143] Example 9: The method of any of Examples 5-8, wherein determining the information corresponding to the neighbor cell measurement comprises determining that the neighbor cell measurement is performed with deep relaxation using the MR; in response to determining that the neighbor cell measurement is performed with deep relaxation using the MR: enabling a serving cell measurement offload mode; and performing a serving cell measurement using a low power wake-up signal radio (LR).

[0144] Example 10: The method of Example 9, wherein conditions for performing the neighbor cell measurement with deep relaxation comprise one or more of: (i) low mobility of UE and the UE being not located at a cell edge; (ii) the UE meeting a serving cell measurement offload threshold; or (iii) the UE being stationary.

[0145] Example 11 : The method of Example 10, wherein the UE meeting the serving cell measurement offload threshold comprises a signal quality of a signal received by the UE from a serving base station being more than the serving cell measurement offload threshold.

[0146] Example 12: The method of any of Examples 5-11, wherein determining the information corresponding to the neighbor cell measurement comprises determining that the neighbor cell measurement is performed using the MR without relaxation, in response to determining that the neighbor cell measurement is performed using the MR without relaxation: enabling a serving cell measurement normal mode; and performing a serving cell measurement using the MR.

[0147] Example 13: A method for wireless communication, the method comprising: enabling a serving cell measurement offload mode; performing low power wake-up signal (LP-WUS)Attorney Docket No. 56990-0040W01 / P68583WO1 monitoring and a serving cell measurement using a low power wake-up signal radio (LR); in response to a configuration specifying that a neighbor cell measurement is initiated based on the serving cell measurement using a main radio (MR) of a user equipment (UE), exiting the serving cell measurement offload mode; and performing neighbor cell measurement initiation / relaxation condition evaluation.

[0148] Example 14: The method of Example 13, wherein performing the neighbor cell measurement initiation / relaxation condition evaluation comprises: determining a signal quality of a signal received by the UE from a serving base station; in response to the signal quality being more than an exit condition of the LP-WUS monitoring and less than a serving cell measurement offload threshold: enabling a serving cell measurement relaxation mode; and performing the serving cell measurement using the MR.

[0149] Example 15: The method of Example 13 or 14, further comprising: determining that an exit condition of the LP-WUS monitoring is not met, in response to the determining: not performing the neighbor cell measurement, wherein a threshold value used for the exit condition is more than a threshold value for initiating the neighbor cell measurement.

[0150] Example 16: The method of any of Examples 13-15, further comprising: determining a signal quality of a signal received by the UE on the LR from a serving base station; and performing the neighbor cell measurement initiation / relaxation condition evaluation using the signal quality of the signal received on the LR.

[0151] Example 17: The method of Example 16, further comprising: performing the serving cell measurement using the MR; determining a second signal quality of a second signal received by the UE on the MR from the serving base station; and performing the neighbor cell measurement initiation / relaxation condition evaluation using the second signal quality of the second signal received on the MR.

[0152] Example 18: A method for wireless communication, the method comprising: performing low power wake-up signal (LP-WUS) monitoring; determining that a user equipment (UE) is not in a serving cell measurement offload mode or a serving cell measurement relaxation mode; in response to the determining: monitoring paging using a main radio (MR) of the UE.

[0153] Example 19: The method of Example 18, wherein determining that the UE is not in the serving cell measurement offload mode or the serving cell measurement relaxation mode comprises: determining that a neighbor cell measurement is initiated and a neighbor cell measurement relaxation condition is not met, in response to determining that the neighbor cellAttorney Docket No. 56990-0040W01 / P68583WO1 measurement is initiated and the neighbor cell measurement relaxation condition is not met: exiting the LP-WUS monitoring.

[0154] Example 20: The method of Example 19, wherein the neighbor cell measurement relaxation condition comprises a condition of relaxation for the neighbor cell measurement or a condition of deep relaxation for the neighbor cell measurement.

[0155] Example 21 : An apparatus comprising: one or more processors; and a memory storing instructions that, when executed, are configured to cause the one or more processors to perform operations of any one of Examples 1-20.

[0156] Example 22: One or more processors comprising circuitry to execute one or more instructions that, when executed, cause the one or more processors to perform operations of any one of Examples 1-20.

[0157] Example 23: One or more non-transitory computer-readable media storing instructions that, when executed, cause one or more processors to perform operations of any one of Examples 1-20.

[0158] 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 USC § 112(f) interpretation for that component.

[0159] For one or more implementations, 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, etc. 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 in the example section.

[0160] Any of the above-described examples may 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 implementations to the precise form disclosed. Modifications and variations are possible in light of the above teachings or may be acquired from practice of various implementations.

[0161] Although the implementations above have been described in considerable detail, numerous variations and modifications will become apparent to those skilled in the art onceAttorney Docket No. 56990-0040W01 / P68583WO1 the above disclosure is fully appreciated. It is intended that the following claims be interpreted to embrace all such variations and modifications.

[0162] It is well understood that the use of personally identifiable information should follow privacy policies and practices that are generally recognized as meeting or exceeding industry or governmental requirements for maintaining the privacy of users. In particular, personally identifiable information data should be managed and handled so as to minimize risks of unintentional or unauthorized access or use, and the nature of authorized use should be clearly indicated to users.

Claims

Attorney Docket No. 56990-0040W01 / P68583WO1CLAIMSWe Claim:

1. A method for wireless communication, the method comprising: determining whether a user equipment (UE) meets an entry condition of low power wake-up signal (LP-WUS) monitoring or whether the UE meets an exit condition of the LP- WUS monitoring, wherein the UE comprises a main radio (MR) and an LP-WUS radio (LR); and in response to determining that the UE fails to meet the entry condition of the LP- WUS monitoring or that the UE meets the exit condition of the LP-WUS monitoring: performing a serving cell measurement using the MR.

2. The method of claim 1, wherein determining that the UE fails to meet the entry condition of the LP-WUS monitoring or that the UE meets the exit condition of the LP-WUS monitoring comprises determining that a signal quality of a signal received by the UE from a serving base station is less than a particular threshold value.

3. The method of claim 1 or 2, further comprising: in response to determining that the UE meets the entry condition of the LP-WUS monitoring: performing the LP-WUS monitoring and the serving cell measurement using the LR.

4. The method of any one of claims 1-3, further comprising: in response to determining that the UE meets the exit condition of the LP-WUS monitoring: performing the serving cell measurement using the MR.

5. A method for wireless communication, the method comprising: determining information corresponding to a neighbor cell measurement using a main radio (MR) of a user equipment (UE); and enabling a serving cell measurement mode based on the information corresponding to the neighbor cell measurement.Attorney Docket No. 56990-0040W01 / P68583WO16. The method of claim 5, wherein determining the information corresponding to the neighbor cell measurement comprises determining that no neighbor cell measurement is performed using the MR, in response to determining that no neighbor cell measurement is performed using the MR: enabling a serving cell measurement offload mode; and performing a serving cell measurement using a low power wake-up signal radio (LR).

7. The method of claim 5 or 6, wherein determining the information corresponding to the neighbor cell measurement comprises determining that the neighbor cell measurement is performed with relaxation using the MR, in response to determining that the neighbor cell measurement is performed with relaxation using the MR: enabling a serving cell measurement relaxation mode; and performing a serving cell measurement using a low power wake-up signal radio (LR) and the MR.

8. The method of claim 7, wherein conditions for performing the neighbor cell measurement with relaxation comprise one or more of: (i) low mobility of the UE; (ii) the UE being not located at a cell edge; or (iii) the LE meeting an entry condition of low power wake-up signal (LP-WUS) monitoring.

9. The method of any one of claims 5-8, wherein determining the information corresponding to the neighbor cell measurement comprises determining that the neighbor cell measurement is performed with deep relaxation using the MR; in response to determining that the neighbor cell measurement is performed with deep relaxation using the MR: enabling a serving cell measurement offload mode; and performing a serving cell measurement using a low power wake-up signal radio (LR).

10. The method of claim 9, wherein conditions for performing the neighbor cell measurement with deep relaxation comprise one or more of: (i) low mobility of the LE and the LE being not located at a cell edge; (ii) the LE meeting a serving cell measurement offload threshold; or (iii) the LE being stationary.Attorney Docket No. 56990-0040W01 / P68583WO111. The method of claim 10, wherein the UE meeting the serving cell measurement offload threshold comprises a signal quality of a signal received by the UE from a serving base station being more than the serving cell measurement offload threshold.

12. The method of any one of claims 5-11, wherein determining the information corresponding to the neighbor cell measurement comprises determining that the neighbor cell measurement is performed using the MR without relaxation, in response to determining that the neighbor cell measurement is performed using the MR without relaxation: enabling a serving cell measurement normal mode; and performing a serving cell measurement using the MR.

13. A method for wireless communication, the method comprising: enabling a serving cell measurement offload mode; performing low power wake-up signal (LP-WUS) monitoring and a serving cell measurement using a low power wake-up signal radio (LR); in response to a configuration specifying that a neighbor cell measurement using a main radio (MR) of a user equipment (UE) is initiated based on the serving cell measurement, exiting the serving cell measurement offload mode; and performing neighbor cell measurement initiation / relaxation condition evaluation.

14. The method of claim 13, wherein performing the neighbor cell measurement initiation / relaxation condition evaluation comprises: determining a signal quality of a signal received by the UE from a serving base station; in response to the signal quality being more than an exit condition of the LP-WUS monitoring and less than a serving cell measurement offload threshold: enabling a serving cell measurement relaxation mode; and performing the serving cell measurement using the MR.

15. The method of claim 13 or 14, further comprising: determining that an exit condition of the LP-WUS monitoring is not met, in response to the determining:Attorney Docket No. 56990-0040W01 / P68583WO1 not performing the neighbor cell measurement, wherein a threshold value used for the exit condition is more than a threshold value for initiating the neighbor cell measurement.

16. The method of any one of claims 13-15, further comprising: determining a signal quality of a signal received by the UE on the LR from a serving base station; and performing the neighbor cell measurement initiation / relaxation condition evaluation using the signal quality of the signal received on the LR.

17. The method of claim 16, further comprising: performing the serving cell measurement using the MR; determining a second signal quality of a second signal received by the UE on the MR from the serving base station; and performing the neighbor cell measurement initiation / relaxation condition evaluation using the second signal quality of the second signal received on the MR.

18. A method for wireless communication, the method comprising: performing low power wake-up signal (LP-WUS) monitoring; determining that a user equipment (UE) is not in a serving cell measurement offload mode or a serving cell measurement relaxation mode; in response to the determining: monitoring paging using a main radio (MR) of the UE.

19. The method of claim 18, wherein determining that the UE is not in the serving cell measurement offload mode or the serving cell measurement relaxation mode comprises: determining that a neighbor cell measurement is initiated and a neighbor cell measurement relaxation condition is not met, in response to determining that the neighbor cell measurement is initiated and the neighbor cell measurement relaxation condition is not met: exiting the LP-WUS monitoring.Attorney Docket No. 56990-0040W01 / P68583WO120. The method of claim 19, wherein the neighbor cell measurement relaxation condition comprises a condition of relaxation for the neighbor cell measurement or a condition of deep relaxation for the neighbor cell measurement.

21. An apparatus comprising: one or more processors; and a memory storing instructions that, when executed, are configured to cause the one or more processors to perform operations of any one of method claims 1-20.

22. One or more processors comprising circuitry to execute one or more instructions that, when executed, cause the one or more processors to perform operations of any one of method claims 1-20.

23. One or more non-transitory computer-readable media storing instructions that, when executed, cause one or more processors to perform operations of any one of method claims 1- 20.

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