Signaling feature evaluation relaxation for user equipment power saving

Abstract

The present application relates to devices and components, including apparatus, systems, and methods for relaxing signaling characteristic evaluation measurements in a wireless communication system.

Description

Background Art

[0001] Developing 3rd Generation Partnership Project (3GPP) technologies include enhancements to power saving techniques for connected mode user equipment (UE). These enhancements may be subject to reducing the impact on system performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0002] Figure 1 A network environment is shown according to some embodiments.

[0003] Figure 2 is a timing diagram illustrating aspects according to some embodiments.

[0004] Figure 3 An operational flow / algorithm structure according to some embodiments is shown.

[0005] Figure 4 Another operational flow / algorithm structure according to some embodiments is shown.

[0006] Figure 5 Another operational flow / algorithm structure according to some embodiments is shown.

[0007] Figure 6 Another operational flow / algorithm structure according to some embodiments is shown.

[0008] Figure 7 User equipment according to some embodiments is shown.

[0009] Figure 8 A base station according to some embodiments is shown. DETAILED DESCRIPTION

[0010] The following detailed description refers to the accompanying drawings. The same reference numerals may be used to identify the same or similar elements in different drawings. In the following description, specific details, such as specific structures, architectures, interfaces, technologies, etc., are set forth for the purpose of illustration and not limitation, so as to provide a thorough understanding of the various aspects of the various embodiments. However, it will be apparent to those skilled in the art who benefit from this disclosure that the various aspects of the various embodiments can be practiced in other examples that deviate from these specific details. In some cases, descriptions of well-known devices, circuits, and methods have been omitted so as not to obscure the description of the various embodiments due to unnecessary details. For the purposes of this document, the phrase "A or B" refers to (A), (B), or (A and B).

[0011] The following is a glossary of terms that may be used in this disclosure.

[0012] As used herein, the term "circuit" refers to, is part of, or includes a hardware component such as an electronic circuit, a logic circuit, a processor (shared, dedicated, or group) or memory (shared, dedicated, or group) configured to provide the described functionality, an application specific integrated circuit (ASIC), a field programmable device (FPD) (e.g., a field programmable gate array (FPGA), a programmable logic device (PLD), a complex PLD (CPLD), a high capacity PLD (HCPLD), a structured ASIC, or a programmable system on a chip (SoC)), a digital signal processor (DSP), etc. In some embodiments, the circuit can execute one or more software or firmware programs to provide at least some of the described functionality. The term "circuit" can also refer to a combination of one or more hardware elements and program code for performing the functions of the program code (or a combination of circuits used in an electrical or electronic system). In these embodiments, the combination of hardware elements and program code can be referred to as a specific type of circuit.

[0013] As used herein, the term "processor circuitry" refers to, is part of, or includes circuitry that is capable of sequentially and automatically performing a series of arithmetic or logical operations or recording, storing, or transmitting digital data. The term "processor circuitry" may refer to an application processor, a baseband processor, a central processing unit (CPU), a graphics processing unit, a single-core processor, a dual-core processor, a triple-core processor, a quad-core processor, or any other device capable of executing or otherwise operating computer-executable instructions (such as program code, software modules, and / or functional processes).

[0014] As used herein, the term "interface circuitry" refers to circuitry that enables, is part of, or includes information exchange between two or more components or devices. The term "interface circuitry" may refer to one or more hardware interfaces, such as a bus, an I / O interface, a peripheral component interface, a network interface card, and the like.

[0015] As used herein, the term "user equipment" or "UE" refers to a device that has radio communication capabilities and can represent a remote user of network resources in a communication network. Furthermore, the terms "user equipment" or "UE" may be considered synonymous and may be referred to as a client, mobile phone, mobile device, mobile terminal, user terminal, mobile unit, mobile station, mobile user, subscriber, user, remote station, access agent, user agent, receiver, radio equipment, reconfigurable radio equipment, reconfigurable mobile device, etc. Furthermore, the term "user equipment" or "UE" may include any type of wireless / wired device or any computing device that includes a wireless communication interface.

[0016] As used herein, the term "computer system" refers to any type of interconnected electronic devices, computer devices, or components thereof. Additionally, the term "computer system" or "system" may refer to various components of a computer that are communicatively coupled to one another. Furthermore, the term "computer system" or "system" may refer to multiple computer devices or multiple computing systems that are communicatively coupled to one another and configured to share computing resources or networked resources.

[0017] As used herein, the term "resource" refers to a physical or virtual device, a physical or virtual component within a computing environment, or a physical or virtual component within a specific device, such as computer equipment, mechanical equipment, memory space, processor / CPU time, processor / CPU utilization, processor and accelerator load, hardware time or utilization, power, input / output operations, ports or network sockets, channel / link allocation, throughput, memory utilization, storage, network, database, and application, workload units, etc. "Hardware resources" may refer to computing, storage, or network resources provided by physical hardware elements. "Virtualized resources" may refer to computing, storage, or network resources provided by a virtualization infrastructure to applications, devices, systems, etc. The terms "network resources" or "communication resources" may refer to resources accessible to a computer device / system via a communication network. The term "system resource" may refer to any type of shared entity that provides a service and may include computing resources or network resources. System resources may be considered a set of coherent functions, network data objects, or services accessible through a server, where such system resources reside on a single host or multiple hosts and are clearly identifiable.

[0018] As used herein, the term "channel" refers to any tangible or intangible transmission medium for transmitting data or data streams. The term "channel" may be synonymous or equivalent with "communication channel," "data communication channel," "transmission channel," "data transmission channel," "access channel," "data access channel," "link," "data link," "carrier," "radio frequency carrier," or any other similar term indicating a path or medium through which data is transmitted. Additionally, as used herein, the term "link" refers to a connection between two devices for transmitting and receiving information.

[0019] As used herein, the terms "instantiate," "instantiate," and the like refer to the creation of an instance. "Instance" also refers to a concrete occurrence of an object, which may occur, for example, during the execution of program code.

[0020] The term "connected" may mean that two or more elements at a common communication protocol layer have an established signaling relationship with each other through a communication channel, link, interface, or reference point.

[0021] As used herein, the term "network element" refers to physical or virtualized equipment or infrastructure used to provide wired or wireless communication network services. The term "network element" may be considered synonymous with or referred to as a networked computer, networking hardware, network equipment, network node, virtualized network function, etc.

[0022] The term "information element" refers to a structural element that contains one or more fields. The term "field" refers to the individual contents of an information element, or a data element that contains the contents. An information element may include one or more additional information elements.

[0023] Figure 1 A network environment 100 is shown according to some embodiments. The network environment 100 may include a UE 104 and a base station 108. The base station 108 may provide one or more radio access cells, such as 3GPP New Radio (NR) cells, through which the UE 104 may communicate with the base station 108. The UE 104 and the base station 108 may communicate over an air interface compatible with 3GPP technical specifications, such as those defining the fifth generation (5G) NR system standard. The base station 108 may be a Next Generation Radio Access Network (NG-RAN) node coupled to a 5G core network. The NG-RAN node may be a gNB that provides NR user plane and control plane protocol termination for the UE 104, or an ng-eNB that provides Evolved Universal Terrestrial Radio Access (E-UTRA) user plane and control plane protocol termination for the UE 104. The network environment 100 may include multiple other RAN nodes (e.g., Long Term Evolution (LTE)-RAN or NG-RAN nodes), transmit-receive points, etc. that may support wireless coverage for the UE 104.

[0024] In operation, UE 104 may cycle through multiple radio resource control (RRC) modes. When UE 104 first camps on a cell provided by base station 108, the UE may start in RRC idle mode. This may be when UE 104 is powered on or undergoes an inter-system handover from an LTE cell. UE 104 may perform an RRC setup procedure to transition to RRC connected mode, in which UE 104 may establish a logical connection with base station 108. In RRC connected mode, UE 104 may be configured with signaling radio bearers (SRBs) and one or more data radio bearers (DRBs). UE 104 may transition to RRC inactive mode, in which case base station 108 may maintain various connections with the 5G core network and UE context. UE 104 may also transition to RRC idle mode to more completely release the connection.

[0025] When in connected mode, the UE 104 can perform various signaling characteristics evaluation (SCE) operations. SCE operations may include, but are not limited to, radio link monitoring (RLM) operations and beam failure detection (BFD) operations. For example, the UE 104 can monitor the DL radio link quality in the active downlink (DL) bandwidth part (BWP) on the primary cell. If the UE 104 is configured with a secondary cell group (SCG) and the parameter rlf-TimersAndConstants is provided and not set to release, the UE 104 can also monitor the DL radio link quality in the active DL BWP of the primary SCG cell (PSCell).

[0026] The base station 108 may configure a set of reference signals (RSs) for the UE 104 to measure for SCE operation. In some embodiments, the UE 108 may use RadioLinkMonitoringRS to configure a set of RSs for the UE 104 to measure for RLM operation. These RSs may be referred to as RLM-RSs. Detection RSs, such as channel state information-reference signals (CSI-RSs), synchronization signal blocks (SSBs), or a combination of both, may be configured for RLM or BFD. A beam failure may occur if changes in radio conditions cause the existing beam to become unreliable before the UE is able to switch to a new beam. A radio link failure may occur if the handover process fails or if the handover process is not initiated when it is required.

[0027] In some embodiments, the UE 104 may not be specifically configured with an RLM-RS, for example, it may not be provided with a RadioLinkMonitoringRS. In these embodiments, the UE 104 may determine which RS to use as the RLM-RS based on other information. For example, if the active transmission configuration indicator (TCI) state for PDCCH reception includes only one reference signal, the UE 104 may use the reference signal provided for the active TCI state for PDCCH reception as the RLM-RS.

[0028] SCE operations may be performed by various layers of the UE 104. For example, if the RLM-RS drops below a first quality level (Q out ), a physical (PHY) layer (which may also be referred to as layer 1 (L1)) may generate an out-of-sync indication, a first quality level may be based on a first block error rate (BLER) target for an assumed PDCCH transmission; and a second quality level (Q) at which the radio link is considered reliable if at least one RLM-RS exceeds a second quality level (Q in), the physical layer generates a synchronization indication, the second quality level may be based on a second BLER target assuming PDCCH transmission; and if all RLM-RSs fall below a third quality level (Q out_LR ), the physical layer generates a beam failure instance, and the third quality level may correspond to a BLER of 10% of the assumed PDCCH transmission. Out-of-sync and in-sync indications may be provided to the RRC layer, and the beam failure instance may be provided to the medium access control (MAC) layer.

[0029] The RRC layer of the UE 104 may provide the first configuration information (eg, a resource set for the RLM-RS and Q in and Q out The RRC layer may also evaluate the radio link failure condition based on the out-of-sync and in-sync indications from the physical layer. If conditions permit, the RRC layer may trigger a radio link failure and RRC reestablishment. In some embodiments, the UE 104 may be configured with a pair of BLER targets to be used for RLF detection. Out-of-sync BLER BLER out may correspond to a first quality level Q below which the radio link is considered unreliable out Synchronous BLER BLER in may correspond to a second quality level Q at which the radio link is considered reliable in In some embodiments, the BLER out Set to 10% and BLER in Set to 2%.

[0030] The MAC layer can evaluate the beam failure condition based on the beam failure instance provided by the PHY layer. If the condition allows, the MAC layer can trigger beam failure and beam failure recovery.

[0031] Two values ​​can be defined for RLM operation. They can be called the L1 measurement interval (T indication_interval ) may set the interval between two consecutive indications from Layer 1 (e.g., an in-sync or out-of-sync indication transmitted by the PHY layer). The L1 measurement interval value may be based on a discontinuous reception (DRX) configuration. DRX may allow the UE 104 to enter a DRX inactive state during periods of inactivity. In the DRX inactive state, the UE 104 may not need to monitor the PDCCH and, therefore, may power down certain receive circuitry. The UE 104 may periodically transition to a DRX active state to monitor the PDCCH to determine whether the UE is to receive a downlink resource allocation. The UE 104 may also enter the DRX active state to send a scheduling request to initiate uplink data transmission.

[0032] A DRX cycle may define the relative time that the UE 104 is in a DRX active state and an inactive state. The UE 104 may switch between a short DRX cycle and a long DRX cycle based on activity levels. A DRX cycle may have a total length of, for example, 10 ms, 20 ms, 32 ms, 40 ms, 60 ms, 64 ms, 70 ms, 80 ms, 128 ms, 160 ms, 256 ms, 320 ms, 512 ms, 640 ms, 1024 ms, 1280 ms, 2048 ms, 2560 ms, 5120 ms, or 10,240 ms. The offset defining the start position of the DRX cycle may be a multiple of 1 ms. For example, a 40 ms DRX cycle with a 10 ms offset would start at 10 ms, 50 ms, and so on. The formula for calculating the DRX cycle may be [(SFN*10)+subframe number] mod(longDRX_cycle) ==(drxStartOffset).

[0033] In the related art, when DRX is not used, T indication_interval Can be set to max(10ms,T RLM-RS,M ), where T RLM-RS,M Is the shortest period among all configured RLM-RS resources of the monitored cell. When DRX is used and the DRX cycle length is DRX cycle_length When it is less than or equal to 320ms, T indication_interval Can be set to max(10ms,1.5×DRX cycle_length ,1.5×T RLM-RS,M ). When DRX is used and the DRX cycle length is DRX cycle_length When it is greater than 320ms, T indication_interval Can be set to DRX cycle_length .

[0034] A second value that can be defined for RLM operation is an evaluation period that can set a granularity determined by a higher layer, such as when the RRC layer determines whether a radio link failure has been triggered. Separate evaluation periods can be defined based on whether the RLM measurement is based on CSI-RS or SSB. The evaluation period can be based on: a sharing factor P that indicates how reference signals are shared between different measurement needs; an asynchrony parameter M. out ; and synchronization parameter M in If, for example, the CSI-RS resource is configured for RLM and is transmitted with a higher layer CSI-RS parameter density set to 3 and has a bandwidth equal to or greater than 24 physical resource blocks, then M out Can be set to 20 and M in Can be set to 10.

[0035] A scaling factor of 1.5 may be used in the calculation of the RLM value to account for potential mismatches between the DRX cycle and the CSI-RS / SSB periodicity.

[0036] Release 16 of the 3GPP standard has defined downlink control information (DCI) format 2_6 for UE power conservation. In short, in some cases, DCI format 2_6 can be used to allow UE 104 to avoid waking up, for example, to transition to a DRX active state. However, in Release 16, even if the wake-up signal (WUS) indicates a DRX active state in which the UE can skip a DRX cycle, the UE may still need to wake up to perform RLM measurements. Therefore, embodiments of the present disclosure describe a relaxation of RLM measurements (and other SCE measurements) that takes advantage of additional power savings without compromising performance.

[0037] Figure 2 A timing diagram 200 according to some embodiments is shown. The timing diagram 200 shows three long DRX cycles. In the DRX active state 212 of the first DRX cycle, the UE 104 can receive DCI 204 and RLM-RS 208. The DRX active state 212 can also be referred to as an on-duration 212. The UE 104 can measure the RLM-RS 208 for RLM operation.

[0038] The first DRX cycle may also include a DRX inactive state 214. The DRX inactive state 214 may also be referred to as an off-duration 214. Near the end of the DRX inactive state 214, the UE 104 may receive a WUS 216 indicating a skip. The UE 104 may be aware of the timing of the WUS 216 and may therefore be activated from the DRX inactive state 214 to receive the WUS 216. The WUS 216 may be a DCI (DCP) with a cyclic redundancy check (CRC) scrambled by a power save-radio network temporary identifier. The WUS 216 may be configured for the UE 104 via a DCP configuration element.

[0039] From a DRX perspective, WUS 216 may indicate that UE 104 does not need to transition to the DRX active state within the second DRX cycle. However, RLM-RS 220 may be transmitted or at least scheduled during the second long DRX period. Although in Release 16 the UE will need to transition to the DRX active state to measure RLM-RS 220, UE 104 may be configured with relaxed RLM parameters that allow it to skip the measurement of RLM-RS 220. Therefore, UE 104 may remain in the DRX inactive state during the Scheduled On Duration of the second long DRX cycle.

[0040] In a similar manner, the UE 104 may receive a WUS 224 at the end of the second long DRX cycle indicating that the UE 104 may skip the DRX active state of the third DRX cycle. Therefore, the UE 104 may not measure the RLM-RS 228. This may be based on the assumption that the relaxed RLM parameters allow for further delays in RLM measurements.

[0041] When the DRX cycle is small, RLM operation can account for a large portion of the UE's power consumption. In some embodiments, when the network configures a small DRX cycle (e.g., 20ms, 40ms, 60ms, or 80ms), the offset can be adjusted to align the DRX cycle's on-duration with the SSB or CSI-RS to achieve UE power savings. In some embodiments, the network can also configure the RLM-RS to align with the WUS position so that the UE 104 can effectively receive both when needed.

[0042] In some embodiments, when WUS or dynamic DCI monitoring indicates that the on-duration of the DRX cycle can be skipped, RLM measurements can also be skipped to achieve UE power savings. Relaxation of RLM parameters can be particularly useful in the case of lower frequency ranges (e.g., frequency range (FR) 1-410 megahertz (MHz) to 7125 MHz) and can be based on or otherwise affected by the DRX configuration.

[0043] In some embodiments, the relaxation of RLM parameters may be based on situations where radio link metrics are favorable and rapid degradation is not expected. For example, if the received power and quality exceed pre-configured thresholds and the UE 104 is determined to be in low mobility mode or not at the edge of a cell, the RLM parameters may be relaxed. If the UE 104 meets pre-configured low mobility criteria, it may be determined that the UE is in low mobility mode. Similarly, if the UE 104 meets the cell edge criteria, it may be determined that the UE is not located in the edge region of the cell. In some embodiments, the low mobility or cell edge criteria may be used to determine whether the relaxed RLM parameters are appropriate for the UE when the UE 104 is in connected mode.

[0044] In some embodiments, when, for example, DCP is configured, the UE 104 may be configured with relaxed RLM parameters through UE-specific RRC configuration. A DCP configuration element (DCP-Config) providing relaxed RLM parameters is shown below.

[0045]

[0046]

[0047] The ps-WakeUp field may indicate whether the UE 104 is to wake up if it does not detect DCI format 2_6 outside of active time. If this field is not present, the UE 104 may not need to wake up if it does not detect DCI format 2_6 outside of active time.

[0048] The ps-PositionDCI-2-6 field may provide the wake-up indication position of the UE 104. When the wake-up indication bit is set to 0, the UE 104 may skip the on-duration of the current DRX cycle. It may be noted that the definition of the current DRX cycle may include related WUS that may technically be transmitted in the previous DRX cycle. For example, refer to Figure 2 , the WUS 216 may be part of the second DRX cycle even though it is technically transmitted in the first DRX cycle.

[0049] The remaining fields of the DCP-Config element may be similar to the similarly named fields described in 3GPP Technical Specification (TS) 38.331 v16.1.0 (2020-07).

[0050] The ps-RLMBFD-Relaxation field may define a relaxation factor (Q) that may be used to calculate the various RLM / BFD parameters described herein. Q is shown as 2, 3, 4, or 5; however, in other embodiments, other values ​​may be used.

[0051] The lowMobilityEvaluation field may provide a low mobility criterion including, for example, the s-SearchDeltaP field and the t-SearchDeltaP field. The s-SearchDeltaP field may provide a power difference, and the t-SearchDeltaP field may define a time. If the UE 104 measures a reference signal power that does not change by more than a given power threshold within a given time, the UE 104 may be considered to meet the low mobility criterion.

[0052] The cellEdgeEvaluation field may provide cell edge criteria including, for example, s-SearchThresholdP and s-SearchThresholdQ. s-SearchThresholdP may provide a relaxed measured Srxlev threshold in decibels (dB). Srxlev may be a received level value (e.g., reference signal received power (RSRP)) measured by the UE 104. s-SearchThresholdQ may provide a relaxed measured Squal threshold. Squal may be a quality level value (e.g., reference signal received quality (RSRQ)) measured by the UE 104. If the UE 104 measures a reference signal quality or power above the corresponding threshold, the UE 104 may be considered to meet the cell edge criteria, and the UE 104 may determine, for example, that it is not located in an edge region of a cell.

[0053] In some embodiments, the relaxed RLM / BFD parameters may be signaled in the physical cell group configuration element PhysicalCellGroupConfig. This may be used to accommodate, for example, situations with or without DRX configuration for RLM / BFD in FR1. In some embodiments, the relaxed RLM BFD field ps-RLMBFD-relaxation shown above may be provided directly in PhysicalCellGroupConfig rather than as part of a DCP configuration element.

[0054] The relaxation factor Q may be used to calculate the evaluation period for CSI-RS based RLM operation as shown in Table 1 and for SSB based RLM operation as shown in Table 2. Q may be signaled in a system information block (SIB) or in RRC signaling.

[0055]

[0056] Table 1

[0057] T Evaluate_out_CSI-RS It may be that the UE 104 must determine whether the downlink radio link quality on the configured RLM-RS resources becomes greater than the out-of-sync quality threshold Q out Poor evaluation cycle. Evaluate_in_CSI-RS It may be that the UE 104 must determine whether the downlink radio link quality on the configured RLM-RS resources becomes greater than the synchronization quality threshold Q in In this embodiment, the configured RLM-RS resources are configured CSI-RS resources.

[0058] T CSI-RSIt can be the period of CSI-RS resources configured for RLM. The parameters in this table are applicable to T CSI-RS For example, 5ms, 10ms, 20ms or 40ms. DRX It can be the DRX cycle length, which can also be called DRX cycle_length .

[0059] The relaxation factor can also be used to determine the L1 measurement interval for CSI-RS based RLM measurements. For example, when DRX is used, if DRX cycle_length Less than or equal to 320ms, then T indication_interval Can be max(10ms,1.5 xDRX cycle_length ,1.5x Q x T RLM-RS,M )), and if DRX cycle_length If it is greater than 320ms, then T indication_interval Equal to DRX cycle_length In this embodiment, T RLM-RS,M Corresponding to T CSI-RS .

[0060] In some embodiments, when DRX is not used, T indication_interval Can be set to Q xmax(10ms,T RLM-RS,M ).

[0061] In some implementations, aligning the DRX cycle and offset with the active-state CSI-RS configuration may facilitate power savings for the UE 104. This may increase the number of DRX active cycles that naturally incorporate CSI-RS without requiring the UE 104 to power on during the DRX inactive cycles.

[0062] In some embodiments, when DCI format 2_6WUS indicates that the UE 104 can skip multiple on-durations, the RLM measurement constraint may be finally imposed. For example, in some embodiments, the UE 104 may perform RLM measurements in at least one of the Q DRX cycles / CSI-RS periods.

[0063] The relaxation factor Q can be used to calculate the evaluation period of the SSB-based RLM operation as shown in Table 2.

[0064]

[0065] Table 2

[0066] T Evaluate_out_SSB It may be that the UE 104 must determine whether the downlink radio link quality on the configured RLM-RS resources becomes greater than the out-of-sync quality threshold Q out Poorly synchronized evaluation cycles. Evaluate_out_SSBIt may be that the UE 104 must determine whether the downlink radio link quality on the configured RLM-RS resources becomes greater than the synchronization quality threshold Q in In this embodiment, the configured RLM-RS resource is a configured SSB resource.

[0067] T SSB It can be the period of SSB resources configured for RLM. DRX It can be the DRX cycle length.

[0068] The relaxation factor can also be used to determine the L1 measurement interval for SSB-based RLM measurements. For example, when DRX is used, if DRX cycle_length Less than or equal to 320ms, then T indication_interval Can be max(10ms,1.5x Q xDRX cycle_length ,1.5x Q x T RLM-RS,M )), and if DRX cycle_length If it is greater than 320ms, then T indication_interval Equal to DRX cycle_length In this embodiment, T RLM-RS,M Corresponding to T SSB .

[0069] In some embodiments, when DRX is not used, T indication_interval Can be set to Q xmax(10ms,T RLM-RS,M ).

[0070] In some embodiments, aligning the DRX cycle and offset with the SSB configuration of the active state can facilitate power savings for the UE 104. This can increase the number of DRX active periods that naturally incorporate SSBs without requiring the UE 104 to power on during the DRX inactive periods.

[0071] In some embodiments, when the WUS (e.g., DCI format 2_6) indicates that the UE 104 can skip multiple on-durations, the RLM measurement constraint can be finally imposed. For example, in some embodiments, the UE 104 can perform RLM measurements in at least one of the Q DRX cycles / SSB periods.

[0072] In some embodiments, RLM operation may be relaxed in other ways. For example, in some embodiments, a least common multiplier (LCM) value may be used to calculate the evaluation period for CSI-RS-based RLM operation as shown in Table 1 and for SSB-based RLM operation as shown in Table 2.

[0073]

[0074] Table 3

[0075] The parameters of Table 3 may be similar to the similarly named parameters discussed with respect to Table 1. However, in Table 3, LCM (T DRX ,T CSI-RS ) replace max(T DRX ,T CSI-RS ), and the “1.5x Q” value is discarded for determining when DRX cycle_length The time period is less than or equal to 320ms. When DRX is not used, the value Q is also discarded.

[0076] LCM utilizing DRX and CSI-RS cycles in this manner may provide an effective way to relax RLM operation in many cases. However, in some cases, it may not relax RLM operation and the operations described above with respect to Tables 1 and 2. For example, when LCM (T DRX ,T CSI-RS )=max(T DRX ,T CSI-RS ), without the 1.5 factor, the timing is actually tightened. Therefore, in some embodiments, the 1.5 multiplier is maintained, for example as shown in Table 4.

[0077]

[0078]

[0079] Table 4 LCM parameters can also be used to relax SSB-based RLM measurements.

[0080]

[0081] Table 5

[0082] The parameters of Table 5 may be similar to the similarly named parameters discussed with respect to Table 2. However, in Table 5, LCM (T DRX ,T SSB ) replace max(T DRX ,T SSB ), and the “Q” value is discarded for determining when DRX cycle_length The time period is less than or equal to 320ms. When DRX is not used, the value Q is also discarded.

[0083] In some embodiments, using LCM as described above with respect to Tables 3-5 may not allow for relaxation when DRX is configured or when the RLM-RS and OnDuration have a constant offset.

[0084] While embodiments describe relaxed RLM operations, other embodiments may apply similar concepts to other SCE operations. For example, in some embodiments, a relaxation factor may be configured and used for neighbor cell measurement relaxation in active mode.

[0085] The relaxation factor (Q) may be applied to various requirements defined relative to neighbor cell measurements, such as those described in section 9.2.5.2 of 3GPP TS 38.133 v16.4.0 (2020-06). In one example, the measurement period for gapless intra-frequency measurements in FR1 may be modified as shown below in Table 6.

[0086]

[0087] Table 6

[0088] SMTC may be the period of the SSB-based measurement timing configuration. CSSFintra may be the intra-frequency carrier-specific scaling factor. If different SMTC periods are configured for different cells, the SMTC period in Table 5 may be the period used by the cell being identified (e.g., a neighboring cell).

[0089] When the intra-frequency SMTC does not overlap with the measurement gap (MG) or the intra-frequency SMTC completely overlaps with the measurement gap, Kp = 1. When the intra-frequency SMTC partially overlaps with the MG, Kp = 1 / (1-(SMTC period / Measurement Gap Repetition Period (MGRP))), where the SMTC period is <MGRP。

[0090] Instead of relying on a relaxation factor (Q), some implementations may use LCM to relax neighbor cell measurements.In one example, the measurement period for intra-frequency measurements without gaps in FR1 may be modified as shown in Table 7 below.

[0091]

[0092] Table 7

[0093] The parameters of Table 7 may be similar to the similarly named parameters described above with respect to Table 6. However, for cases where the DRX cycle length is equal to or less than 320 ms, Table 7 replaces the max function with the LCM function. Table 7 also removes the relaxation factor (Q) when DRX is not used.

[0094] Figure 3 An operational flow / algorithm structure 300 according to some embodiments is illustrated. The operational flow / algorithm structure 300 may be performed or implemented by a UE, such as, for example, UE 104 or UE 700; or a component thereof, such as baseband processor 704A.

[0095] The operational flow / algorithm structure 300 may include, at 304, processing a configuration element to determine a relaxation factor. In some embodiments, the configuration element may be transmitted in SIB or RRC signaling. The configuration element may be a DCP configuration element or a physical cell configuration element. In some embodiments, the relaxation factor may be an enumerated value such as, but not limited to, 2, 3, 4, or 5.

[0096] The operational flow / algorithm structure 300 may further include, at 308 , determining a relaxed evaluation period or L1 measurement interval based on the relaxation factor.

[0097] In some implementations, the relaxed evaluation period may include a synchronization (IS) evaluation period, which may be a period in which the UE 104 must determine whether the downlink radio quality on the configured RLM-RS resources becomes better than an IS quality threshold.

[0098] If the RLM-RS is a CSI-RS, then when T DRX When the IS evaluation period is less than or equal to 320ms, it can be equal to max(100,Ceil(1.5x Q x M in x P)x Max(T DRX ,T CSI-RS )). When DRX is not used, the IS evaluation period may be equal to max(100, Ceil(M in x P x Q)x T CSI-RS ).

[0099] If RLM-RS is SSB, then when T DRX When the IS evaluation period is less than or equal to 320ms, it can be equal to max(100,Ceil(7.5x P x Q)x Max(T DRX ,T SSB )). When DRX is not used, the IS evaluation period may be equal to max(100, Ceil(5x P xQ)x T SSB ).

[0100] In some implementations, the relaxed evaluation period may include an Out-of-Sync (OOS) evaluation period, which may be a period in which the UE 104 must determine whether the downlink radio quality on the configured RLM-RS resources becomes worse than an OOS quality threshold.

[0101] If the RLM-RS is a CSI-RS, then when T DRX When less than or equal to 320ms, the OOS evaluation period can be equal to max(200,Ceil(1.5x Q x M out x P)x Max(T DRX ,TCSI-RS )). When DRX is not used, the OOS evaluation period may be equal to max(200, Ceil(M out x P x Q)x T CSI-RS ).

[0102] If RLM-RS is SSB, then when T DRX When less than or equal to 320ms, the OOS evaluation period can be equal to max(200,Ceil(15x P x Q)x max(T DRX ,T SSB )). When DRX is not used, the OOS evaluation period may be equal to max(200, Ceil(10x P x Q) x T SSB ).

[0103] In some embodiments, if DRX cycle_length If the L1 measurement interval is less than or equal to 320ms, the L1 measurement interval can be equal to max(10ms,1.5x Q x DRX cycle_length ,1.5x Q x T RLM-RS,M ). If DRX cycle_length If it is greater than 320ms, the L1 measurement interval can be equal to DRX cycle_length If DRX is not used, the L1 measurement interval can be equal to Q x max (10 ms, T RLM-RS,M ).

[0104] The operational flow / algorithm structure 300 may also include, at 312, performing an SCE operation using a relaxed evaluation period or measurement interval. In some embodiments, the SCE operation may be an RLM operation. The RLM operation may include determining out-of-sync and in-sync indications at the physical layer, or evaluating radio link failure conditions and triggering radio link failure and RRC re-establishment at the RRC layer. In other embodiments, the SCE operation may be a BFD operation. The BFD operation may include determining a beam failure instance at the physical layer, or evaluating beam failure conditions and triggering beam failure and beam failure recovery at the MAC layer.

[0105] Figure 4 An operational flow / algorithm structure 400 according to some embodiments is shown. The operational flow / algorithm structure 400 may be performed or implemented by a UE, such as, for example, UE 104 or UE 700; or a component thereof, such as baseband processor 704A.

[0106] The operation flow / algorithm structure 400 may include storing the LCM of the DRX cycle and the RLM-RS period at 404. The RLM-RS period may be T CSI-RS or T SSB, which depends on whether the RLM-RS is CSI-RS or SSB.

[0107] The operational flow / algorithm structure 400 may further include determining an evaluation period based on the LCM at 408. The evaluation period may be an IS evaluation period or an OOS evaluation period.

[0108] If the RLM-RS is a CSI-RS, then when T DRX When the IS evaluation period is less than or equal to 320ms, it can be equal to max(100,Ceil(M in x P)x LCM(T DRX ,T CSI-RS )). When DRX is not used, the IS evaluation period may be equal to max(100, Ceil(M in x P)x T CSI-RS ).

[0109] If RLM-RS is SSB, then when T DRX When the IS evaluation period is less than or equal to 320ms, it can be equal to max(100,Ceil(7.5x P)x LCM(T DRX ,T SSB )). When DRX is not used, the IS evaluation period may be equal to max(100, Ceil(5x P)xT SSB ).

[0110] If the RLM-RS is a CSI-RS, then when T DRX When it is less than or equal to 320ms, the OOS evaluation period can be equal to max(200,Ceil(M out x P)x LCM(T DRX ,T CSI-RS )). When DRX is not used, the OOS evaluation period may be equal to max(200, Ceil(M out x P)x T CSI-RS ).

[0111] If RLM-RS is SSB, then when T DRX When less than or equal to 320ms, the OOS evaluation period can be equal to max(200,Ceil(15x P)x LCM(T DRX ,T SSB )). When DRX is not used, the OOS evaluation period may be equal to max(200, Ceil(10x P)x T SSB ).

[0112] The operational flow / algorithm structure 400 may further include performing an RLM operation using the evaluation cycle at 412. The RLM operation may be performed as described above.

[0113] Figure 5 An operational flow / algorithm structure 500 according to some embodiments may be included. The operational flow / algorithm structure 500 may be performed or implemented by a UE, such as, for example, UE 104 or UE 700; or a component thereof, such as baseband processor 704A.

[0114] The operational flow / algorithm structure 500 may include, at 504, processing one or more configuration elements to determine a relaxation factor or LCM. The relaxation factor may be determined by directly indicating it in a configuration element (e.g., a DCP configuration element or a physical cell configuration element). The LCM may be determined by accessing components of the LCM formula from one or more configuration elements. For example, the LCM may be LCM (SMTC cycle, DRX cycle), and the UE 104 may determine the SMTC cycle and the DRX cycle based on the one or more configuration elements.

[0115] The operational flow / algorithm structure 500 may further include, at 508 , determining a measurement period for the intra-frequency measurement without measurement gaps based on the relaxation factor or the LCM.

[0116] An embodiment using a relaxation factor may determine the measurement period as follows. When discontinuous reception is not used, the measurement period may be determined to be equal to max(200 milliseconds (ms), ceil(5 x Q x K p )x SMTC period)x CSSF intra , where K p is 1 or (1 / (1-(SMTC period / MGRP))). When the DRX cycle is less than or equal to 320 ms, the measurement period may be determined to be equal to max(200 ms, ceil(1.5 x 5 x Q xK p )x max(SMTC period, DRX cycle))x CSSF intra .

[0117] The embodiment using LCM may determine the measurement period as follows. When the DRX cycle is less than or equal to 320ms, the measurement period may be determined to be equal to max(200ms, ceil(5x K p ) x LCM (SMTC cycle, DRX cycle) x CSSF intra .

[0118] The operational flow / algorithm structure 500 may also include, at 512, performing neighbor cell measurements using an evaluation period. The neighbor cell measurements may be based on reference signals transmitted in one or more neighboring cells. The reference signals may be in the same frequency band as the frequency band of the current serving cell. Thus, the neighbor cell measurements may be intra-frequency measurements. In various embodiments, the measurements may be SS-RSRP measurements, SS-RSRQ measurements, or SS-SINR measurements.

[0119] The reference signal for the measurement may be an SSB signal. SSB-based measurements may be configured together with one or two measurement timing configurations (e.g., SMTC) that provide periodicity, duration, and offset information about a window, e.g., of up to 5 ms, over which measurements are to be performed.

[0120] The UE 104 may generate and send one or more reports based on the measurements performed at 512. The reports may be on a periodic basis, on an event-triggered basis, or on an event-triggered periodic basis.

[0121] Figure 6 An operational flow / algorithm structure 600 according to some embodiments may be included. The operational flow / algorithm structure 600 may be performed or implemented by a base station, such as, for example, base station 108 or 800; or a component thereof, such as baseband processor 804A.

[0122] The operational flow / algorithm structure 600 may include generating a configuration message with an indication of a relaxation factor at 604. The configuration message may include one or more information elements, such as, but not limited to, a DCP configuration element or a physical cell group configuration element. The relaxation factor may be an enumerated value, such as, for example, 2, 3, 4, or 5.

[0123] The operational flow / algorithm structure 600 may also include, at 608, transmitting a configuration message to the UE. In some embodiments, the configuration message may be transmitted to the UE while the UE is establishing an RRC connection with the base station. In other embodiments, the configuration message may be transmitted to the UE as part of an update configuration operation.

[0124] Figure 7 UE 700 according to some embodiments is shown. UE 700 may be similar to Figure 1 UE 104 and is essentially interchangeable therewith.

[0125] UE 700 can be any mobile or non-mobile computing device, such as a mobile phone, a computer, a tablet, an industrial wireless sensor (e.g., a microphone, a carbon dioxide sensor, a pressure sensor, a humidity sensor, a thermometer, a motion sensor, an accelerometer, a laser scanner, a fluid level sensor, an inventory sensor, a voltage / current meter, an actuator, etc.), a video surveillance / monitoring device (e.g., a camera, a camcorder, etc.), a wearable device (e.g., a smart watch), or a loose IoT device.

[0126] UE 700 may include a processor 704, RF interface circuitry 708, memory / storage 712, a user interface 716, sensors 720, driver circuitry 722, a power management integrated circuit (PMIC) 724, antenna structures 726, and a battery 728. The components of UE 700 may be implemented as integrated circuits (ICs), portions of integrated circuits, discrete electronic devices or other modules, logical components, hardware, software, firmware, or combinations thereof. Figure 7 The block diagram is intended to show a high-level view of certain of the components of the UE 700. 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.

[0127] Components of the UE 700 may be coupled to various other components via one or more interconnects 732, which may represent any type of interface, input / output, bus (local, system, or extension), transmission line, trace, optical connection, etc., that allows various circuit components (on a common or different chip or chipset) to interact with each other.

[0128] The processor 704 may include processor circuits such as a baseband processor circuit (BB) 704A, a central processor unit circuit (CPU) 704B, and a graphics processor unit circuit (GPU) 704C. The processor 704 may include any type of circuit or processor circuit that executes or otherwise operates computer-executable instructions (such as program code, software modules, or functional processes from the memory / storage device 712) to cause the UE 700 to perform operations as described herein.

[0129] In some embodiments, the baseband processor circuit 704A can access the communication protocol stack 736 in the memory / storage device 712 to communicate over a 3GPP-compatible network. Generally speaking, the baseband processor circuit 704A can access the communication protocol stack to perform user plane functions at the PHY layer, MAC layer, RLC layer, PDCP layer, SDAP layer, and PDU layer; and control plane functions at the PHY layer, MAC layer, RLC layer, PDCP layer, RRC layer, and non-access layer. In some embodiments, PHY layer operations can additionally / alternatively be performed by components of the RF interface circuit 708.

[0130] The baseband processor circuit 704A may generate or process baseband signals or waveforms that carry information in a 3GPP-compliant network. In some embodiments, the waveforms used for NR may be based on cyclic prefix OFDM ("CP-OFDM") in the uplink or downlink, and discrete Fourier transform spread OFDM ("DFT-S-OFDM") in the uplink.

[0131] The memory / storage 712 may include one or more non-transitory computer-readable media containing instructions (e.g., the communication protocol stack 736) that are executable by one or more processors in the processor 704 to cause the UE 700 to perform the various operations described herein. The memory / storage 712 includes any type of volatile or non-volatile memory that may be distributed throughout the UE 700. In some embodiments, some of the memory / storage 712 may be located on the processor 704 itself (e.g., an L1 cache and an L2 cache), while other memory / storage 712 may be external to the processor 704 but accessible via a memory interface. The memory / storage 712 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.

[0132] The RF interface circuit 708 may include transceiver circuitry and a radio frequency front-end module (RFEM), which allows the UE 700 to communicate with other devices over a radio access network. The RF interface circuit 708 may include various components arranged in a transmit path or a receive path. These components may include, for example, switches, mixers, amplifiers, filters, synthesizer circuits, control circuits, and the like.

[0133] In the receive path, the RFEM receives the radiated signal from the air interface via the antenna structure 726 and further filters and amplifies the signal (using a low-noise amplifier). The signal can be provided to the transceiver's receiver, which down-converts the RF signal to a baseband signal that is provided to the baseband processor of the processor 704.

[0134] In the transmit path, the transmitter of the transceiver up-converts the baseband signal received from the baseband processor and provides an RF signal to the RFEM. The RFEM may amplify the RF signal through a power amplifier before the signal is radiated across the air interface via the antenna 726.

[0135] In various embodiments, the RF interface circuit 708 may be configured to transmit / receive signals in a manner compatible with NR access technology.

[0136] Antenna 726 may include antenna elements to convert electrical signals into radio waves to travel through the air and convert received radio waves into electrical signals. These antenna elements may be arranged into one or more antenna panels. Antenna 726 may have antenna panels that are omnidirectional, directional, or a combination thereof to enable beamforming and multiple-input / multiple-output communications. Antenna 726 may include microstrip antennas, printed antennas fabricated on the surface of one or more printed circuit boards, patch antennas, phased array antennas, and the like. Antenna 726 may have one or more panels designed for a specific frequency band, including a band in FR1 or FR2.

[0137] User interface circuitry 716 includes various input / output (I / O) devices designed to enable a user to interact with UE 700. User interface 716 includes input device circuitry and output device circuitry. Input device circuitry includes any physical or virtual device for accepting input, including, in particular, one or more physical or virtual buttons (e.g., a reset button), a physical keyboard, a keypad, a mouse, a trackpad, a touch screen, a microphone, a scanner, a headset, etc. Output device circuitry includes any physical or virtual device for displaying or otherwise communicating information (such as sensor readings, actuator positions, or other similar information). Output device circuitry may include any number or combination of audio or visual displays, including, in particular, one or more simple visual outputs / indicators (e.g., binary state indicators (such as light emitting diodes "LEDs") and multi-character visual outputs), or more complex outputs such as a display device or touch screen (e.g., a liquid crystal display "LCD," an LED display, a quantum dot display, a projector, etc.), where the output of characters, graphics, multimedia objects, etc. is generated or produced by the operation of UE 1100.

[0138] Sensor 720 may include a device, module, or subsystem whose purpose is to detect events or changes in its environment and to send information about the detected events (sensor data) to some other device, module, subsystem, etc. Examples of such sensors include, among others: an inertial measurement unit including an accelerometer, gyroscope, or magnetometer; a microelectromechanical system or nanoelectromechanical system including a three-axis accelerometer, three-axis gyroscope, or magnetometer; a liquid level sensor; a flow sensor; a temperature sensor (e.g., a thermistor); a pressure sensor; a barometric pressure sensor; a gravity meter; an altimeter; an image capture device (e.g., a camera or lensless aperture); a light detection and ranging sensor; a proximity sensor (e.g., an infrared radiation detector, etc.); a depth sensor; an ambient light sensor; an ultrasound transceiver; a microphone or other similar audio capture device; etc.

[0139] The driver circuit 722 may include software and hardware components that operate to control specific devices embedded in, attached to, or otherwise communicatively coupled to the UE 700. The driver circuit 722 may include various drivers to allow other components to interact with or control various input / output (I / O) devices that may be present in or connected to the UE 700. For example, the driver circuit 722 may include a display driver for controlling and enabling access to a display device, a touch screen driver for controlling and enabling access to a touch screen interface, a sensor driver for obtaining sensor readings from the sensor circuit 720 and controlling and enabling access to the sensor circuit 720, a driver for obtaining actuator positions of electromechanical components or controlling and enabling access to electromechanical components, a camera driver for controlling and enabling access to an embedded image capture device, or an audio driver for controlling and enabling access to one or more audio devices.

[0140] The PMIC 724 may manage power provided to various components of the UE 700. Specifically, with respect to the processor 704, the PMIC 724 may control power source selection, voltage scaling, battery charging, or DC-DC conversion.

[0141] In some embodiments, the PMIC 724 may control or otherwise be part of various power saving mechanisms of the UE 700 , including DRX, as discussed herein.

[0142] The battery 728 can power the UE 700, but in some examples, the UE 700 can be installed in a fixed location and can have a power source coupled to the power grid. The battery 728 can be a lithium-ion battery, a metal-air battery such as a zinc-air battery, an aluminum-air battery, a lithium-air battery, etc. In some implementations, such as in vehicle-based applications, the battery 728 can be a typical lead-acid automobile battery.

[0143] Figure 8 FIGURE 8 shows a gNB 800 according to some embodiments. The gNB node 800 may be similar to Figure 1 base station 108 and is essentially interchangeable therewith.

[0144] The gNB 800 may include a processor 804, RF interface circuitry 808, core network “CN” interface circuitry 812, memory / storage device circuitry 816, and antenna structures 826.

[0145] Components of the gNB 800 may be coupled to various other components via one or more interconnects 828.

[0146] The processor 804, RF interface circuit 808, memory / storage circuit 816 (including communication protocol stack 810), antenna structure 826 and interconnect 828 may be similar to those of reference 1. Figure 7 Like-named elements are shown and described.

[0147] The CN interface circuitry 812 can provide connectivity to a core network (e.g., 5GC using a 5th Generation Core Network (5GC)-compatible network interface protocol (such as the Carrier Ethernet protocol) or some other suitable protocol). Network connectivity can be provided to and from the gNB 800 via optical fiber or wireless backhaul. The CN interface circuitry 812 can include one or more dedicated processors or FPGAs for communicating using one or more of the aforementioned protocols. In some implementations, the CN interface circuitry 812 can include multiple controllers for providing connectivity to other networks using the same or different protocols.

[0148] It is understood that the use of personally identifiable information should be subject to privacy policies and practices that are generally recognized to meet or exceed industry or government requirements for maintaining user privacy. Specifically, personally identifiable information data should be managed and processed to minimize the risk of unintentional or unauthorized access or use, and the nature of authorized use should be clearly stated to users.

[0149] For one or more embodiments, at least one of the components shown in one or more of the foregoing figures may be configured to perform one or more operations, techniques, processes, or methods described in the Examples section below. For example, the baseband circuitry described above in conjunction with one or more of the foregoing figures may be configured to operate according to one or more of the examples described below. For another example, circuitry associated with the UE, base station, network element, etc. described above in conjunction with one or more of the foregoing figures may be configured to operate according to one or more of the examples shown in the Examples section below.

[0150] Example

[0151] In the following sections, additional exemplary embodiments are provided.

[0152] Embodiment 1 includes a method of operating a UE, the method comprising: processing a configuration element to determine a relaxation factor; determining a relaxed evaluation period or measurement interval based on the relaxation factor; and performing a signaling characteristics evaluation (SCE) operation using the relaxed evaluation period or measurement interval.

[0153] Embodiment 2 includes the method of embodiment 1 or some other embodiment herein, wherein the configuration element is a physical cell group configuration element or a downlink control information (DCP) configuration element with a cyclic redundancy check scrambled by a power save-radio network temporary identifier.

[0154] Embodiment 3 includes the method of embodiment 2 or some other embodiment herein, further comprising receiving the configuration element in a system information block (SIB) signal or a radio resource control (RRC) signal.

[0155] Embodiment 4 includes a method according to embodiment 1 or some other embodiment herein, wherein the SCE operation is a radio link monitoring (RLM) operation or a beam failure detection (BFD) operation, and the method further includes: processing the configuration element to determine a low mobility criterion; determining that the UE is in a low mobility state based on one or more measurements at the UE and the low mobility criterion; and performing the RLM or BFD operation using the relaxed evaluation period or measurement interval based on the determination that the UE is in the low mobility state.

[0156] Embodiment 5 includes a method according to embodiment 4 or some other embodiment herein, further comprising: processing the configuration element to determine a cell edge criterion; determining that the UE is not located in an edge area of ​​the serving cell based on one or more measurements at the UE and the cell edge criterion; and performing the RLM or BFD operation using the relaxed evaluation period or measurement interval based on the determination that the UE is not located in the edge area of ​​the serving cell.

[0157] Embodiment 6 includes the method of embodiment 1 or some other embodiment herein, wherein the SCE operation is a radio link monitoring (RLM) operation, and the method further comprises: determining a relaxed layer 1 (L1) measurement interval based on the relaxation factor (Q), wherein the relaxed L1 measurement interval is equal to: max (10 milliseconds (ms), 1.5 x Q x DRX cycle_length ,1.5x Q x T RLM-RS,M ), where DRX cycle_length is the length of the DRX cycle and T RLM-RS,Mis the shortest period of all configured Radio Link Monitoring-Reference Signals (RLM-RS), provided that DRX cycle_length Less than or equal to 320ms; or the relaxed L1 measurement interval is equal to DRX cycle_length , provided that DRX cycle_length Greater than 320ms.

[0158] Embodiment 7 includes the method of embodiment 1 or some other embodiment herein, wherein the SCE operation is a radio link monitoring (RLM) operation, and the method further comprises: determining a relaxed layer 1 (L1) measurement interval based on the relaxation factor (Q), wherein when discontinuous reception is not used, the relaxed L1 measurement interval is equal to Q x max (10 milliseconds, T RLM-RS,M ), where T RLM-RS,M The shortest period among all configured Radio Link Monitoring-Reference Signals (RLM-RS).

[0159] Embodiment 8 includes the method according to embodiment 1 or some other embodiment herein, wherein the SCE operation is a radio link monitoring (RLM) operation, and the method further comprises: determining a relaxed out-of-sync (OOS) evaluation period based on the relaxation factor (Q), wherein: when the discontinuous reception (DRX) cycle length (T DRX ) is less than or equal to 320 milliseconds (ms), the relaxed OOS evaluation period is equal to max(200,Ceil(1.5x Q x M out x P)x max(T DRX ,T CSI-RS )), where M out is 20, P is the shared factor, and T CSI-RS is the period of the channel state information-reference signal (CSI-RS) resource used for radio link monitoring (RLM); or when DRX is not used, the relaxed OOS evaluation period is equal to max(200, Ceil(M out x P x Q)x T CSI-RS ).

[0160] Embodiment 9 includes the method of embodiment 1 or some other embodiment herein, wherein the SCE operation is a radio link monitoring (RLM) operation, and the method further comprises: determining a relaxed synchronization (IS) assessment period based on the relaxation factor (Q), wherein: when the discontinuous reception (DRX) cycle length (T DRX ) is less than or equal to 320 milliseconds (ms), the relaxed IS evaluation period is equal to max(100,Ceil(1.5x Q x M in x P)x Max(T DRX ,TCSI-RS )), where M in is 10, P is the shared factor, and T CSI-RS is the period of the channel state information-reference signal (CSI-RS) resource used for the RLM operation; or when DRX is not used, the relaxed IS evaluation period is equal to max(100, Ceil(M in x P x Q)x T CSI-RS ).

[0161] Embodiment 10 includes the method according to embodiment 1 or some other embodiment herein, wherein the SCE operation is a radio link monitoring (RLM) operation, and the method further comprises: determining a relaxed out-of-sync (OOS) evaluation period based on the relaxation factor (Q), wherein: when the discontinuous reception (DRX) cycle length (T DRX ) is less than or equal to 320 milliseconds (ms), the relaxed OOS evaluation period is equal to max(200, Ceil(15x P x Q)x max(T DRX ,T SSB )), where P is the sharing factor, and T SSB is the period of the synchronization signal block (SSB) resource used for the RLM operation; or when DRX is not used, the relaxed OOS evaluation period is equal to max(200, Ceil(10x P xQ)x T SSB ).

[0162] Embodiment 11 includes the method according to embodiment 1 or some other embodiment herein, wherein the SCE operation is a radio link monitoring (RLM) operation, and the method further comprises: determining a relaxed synchronization (IS) assessment period based on the relaxation factor (Q), wherein: when the discontinuous reception (DRX) cycle length (T DRX ) is less than or equal to 320 milliseconds (ms), the relaxed IS evaluation period is equal to max(100,Ceil(7.5x P x Q)x Max(T DRX ,T SSB )), where P is the sharing factor, and T SSB is the period of the synchronization signal block (SSB) used for the RLM operation; or when DRX is not used, the relaxed IS evaluation period is equal to max(100, Ceil(5x P x Q)x T SSB ).

[0163] Embodiment 12 includes a method of operating a UE, the method comprising: storing a least common multiple (LCM) of a discontinuous reception (DRX) cycle and a radio link monitoring-reference signal (RLM-RS) period; determining an evaluation period based on the LCM; and performing RLM operation using the evaluation period.

[0164] Embodiment 13 includes the method of embodiment 12 or some other embodiment herein, wherein the DRX cycle is T DRX , the RLM-RS is a channel state information-reference signal (CSI-RS), and the period of the CSI-RS is T CSI-RS , the DRX and the LCM of the cycle are (LCM(T DRX ,T CSI-RS )), the evaluation period is an out-of-sync (OOS) evaluation period, and when T DRX When the OOS evaluation period is less than or equal to 320 milliseconds (ms), the OOS evaluation period is equal to max(200,Ceil(M out xP)x LCM(T DRX ,T CSI-RS )), where M out is 20 and P is the sharing factor.

[0165] Embodiment 14 includes the method of embodiment 12 or some other embodiment herein, wherein the DRX cycle is T DRX , the RLM-RS is a channel state information-reference signal (CSI-RS), and the period of the CSI-RS is T CSI-RS , the DRX and the LCM of the cycle are (LCM(T DRX ,T CSI-RS )), the evaluation period is the synchronous (IS) evaluation period, and when T DRX When it is less than or equal to 320 milliseconds (ms), the IS evaluation period is equal to max(100,Ceil(M in x P)xLCM(T DRX ,T CSI-RS )), where M in is 10 and P is the sharing factor.

[0166] Embodiment 15 includes the method of embodiment 12 or some other embodiment herein, wherein the DRX cycle is T DRX , the RLM-RS is a synchronization signal block (SSB), and the period of the SSB is T SSB , the DRX and the LCM of the cycle are (LCM(T DRX ,T SSB )), the evaluation period is an out-of-sync (OOS) evaluation period, and when TDRX When the OOS evaluation period is less than or equal to 320 milliseconds (ms), the OOS evaluation period is equal to max(200,Ceil(15x P)x LCM(T DRX ,T SSB )), where P is the sharing factor.

[0167] Embodiment 16 includes the method of embodiment 12 or some other embodiment herein, wherein the DRX cycle is T DRX , the RLM-RS is a synchronization signal block (SSB), and the period of the SSB is T SSB , the DRX and the LCM of the cycle are (LCM(T DRX ,T SSB )), the evaluation period is the synchronous (IS) evaluation period, and when T DRX When the IS evaluation period is less than or equal to 320 milliseconds (ms), it is equal to max(100,Ceil(7.5x P)x LCM(T DRX ,T SSB )), where P is the sharing factor.

[0168] Embodiment 17 includes a method of operating a UE, the method comprising: processing one or more configuration elements to determine a relaxation factor or a least common multiplier (LCM); determining a measurement period for intra-frequency measurements without measurement gaps based on the relaxation factor or the LCM; and performing neighbor cell measurements using the measurement period.

[0169] Embodiment 18 includes the method of embodiment 17 or any other embodiment herein, further comprising: processing the one or more configuration elements to determine the relaxation factor (Q); and when discontinuous reception is not used, the measurement period is equal to max (200 milliseconds (ms), ceil (5 x Q x K p )xSMTC period)x CSSF intra , where K p is 1 or (1 / (1-(SMTC period / Measurement Gap Repetition Period (MGRP)))), where the SMTC period is the period of the measurement timing configuration based on the synchronization signal block, and the CSSF intra is the intra-frequency carrier specific scaling factor.

[0170] Embodiment 19 includes the method of embodiment 17 or any other embodiment herein, further comprising: processing the configuration information to determine the relaxation factor (Q); and when a discontinuous reception (DRX) cycle is less than or equal to 320 milliseconds (ms), the measurement period is equal to max(200 ms, ceil(1.5 x 5 x Q x K p)x max(SMTC period, DRX cycle))x CSSF intra , where K p is 1 or (1 / (1-(SMTC period / Measurement Gap Repetition Period (MGRP)))), where the SMTC period is the period of the measurement timing configuration based on the synchronization signal block, and the CSSF intra is the intra-frequency carrier specific scaling factor.

[0171] Embodiment 20 includes the method of embodiment 17 or any other embodiment herein, further comprising: processing the configuration element to determine the LCM; and when a discontinuous reception (DRX) cycle is less than or equal to 320 milliseconds (ms), the measurement period is equal to max(200 milliseconds (ms), ceil(5x K p ) x LCM (SMTC cycle, DRX cycle) x CSSF intra , where K p is 1 or (1 / (1-(SMTC period / Measurement Gap Repetition Period (MGRP)))), where the SMTC period is the period of the measurement timing configuration based on the synchronization signal block, and the CSSF intra is the intra-frequency carrier specific scaling factor.

[0172] Example 21 may include an apparatus comprising means for performing one or more elements of the method described in or related to any of Examples 1-20, or any other method or process described herein.

[0173] Embodiment 22 may include one or more non-transitory computer-readable media comprising instructions that, when executed by one or more processors of an electronic device, cause the electronic device to perform one or more elements of a method described in or related to any one of Embodiments 1 to 20 or any other method or process described herein.

[0174] Embodiment 23 may include an apparatus comprising logic components, modules, or circuits for performing one or more elements of the method described in or related to any of Embodiments 1-20, or any other method or process described herein.

[0175] Example 24 may include methods, techniques, or processes as described or related to any one of Examples 1 to 20, or portions or components thereof.

[0176] Embodiment 25 may include a device comprising: one or more processors and one or more computer-readable media, the one or more computer-readable media comprising instructions that, when executed by the one or more processors, cause the one or more processors to perform a method, technique, or process, or portion thereof, as described or related to any one of Embodiments 1 to 20.

[0177] Embodiment 26 may include a signal as described or associated with any one of Embodiments 1 to 20, or a portion or component thereof.

[0178] Embodiment 27 may include a datagram, information element, packet, frame, segment, PDU or message, or a portion or component thereof, as described or associated with any one of embodiments 1 to 20, or otherwise described in this disclosure.

[0179] Embodiment 28 may include a signal encoded with data as described or associated with any one of Embodiments 1 to 20, or a portion or component thereof, or as otherwise described in this disclosure.

[0180] Embodiment 29 may include a signal encoded with a datagram, IE, packet, frame, segment, PDU, or message as described or associated with any one of embodiments 1 to 20, or a portion or component thereof, or otherwise described in this disclosure.

[0181] Embodiment 30 may include an electromagnetic signal carrying computer-readable instructions, wherein execution of the computer-readable instructions by one or more processors will cause the one or more processors to perform the method, technique, or process described in or related to any one of Embodiments 1 to 20, or a portion thereof.

[0182] Embodiment 31 may include a computer program comprising instructions, wherein execution of the program by a processing element causes the processing element to perform a method, technique, or process described in or related to any one of Embodiments 1 to 20, or a portion thereof.

[0183] Embodiment 32 may include signals in a wireless network as shown and described herein.

[0184] Embodiment 33 may include a method of communicating in a wireless network as shown and described herein.

[0185] Embodiment 34 may include a system for providing wireless communications as shown and described herein.

[0186] Embodiment 35 may include an apparatus for providing wireless communications as shown and described herein.

[0187] Unless expressly stated otherwise, any of the above examples may be combined with any other example (or combination of examples). The foregoing description of one or more specific implementations provides illustration and description, but is not intended to be exhaustive or to limit the scope of the embodiments to the precise forms disclosed. Modifications and variations are possible in light of the above teachings or may be acquired from practice of the various embodiments.

[0188] Although the above embodiments have been described in considerable detail, numerous variations and modifications will become apparent to those skilled in the art once the above disclosure is fully appreciated. It is intended that the following claims be interpreted to encompass all such variations and modifications.

Claims

1. One or more computer-readable media having instructions that, when executed by one or more processors, cause a user equipment (UE) to: Processing configuration elements to determine relaxation factors; The relaxed asynchronous OOS evaluation period is determined based on the relaxation factor Q, where: The relaxed OOS evaluation period is equal to max(200, Ceil(15×P×Q)×max(T DRX ,T SSB )), where P is the sharing factor, T DRX is the DRX cycle length, and T SSB is the period of the synchronization signal block SSB resource used for radio link monitoring RLM operation; as well as The RLM operation is performed during the relaxed evaluation period, wherein the RLM operation is in a frequency range FR1.

2. The one or more computer-readable media of claim 1, wherein the configuration element is a physical cell group configuration element or a downlink control information (DCP) configuration element with a cyclic redundancy check scrambled by a power save-radio network temporary identifier.

3. The one or more computer-readable media of claim 1 , wherein the instructions, when executed, further cause the UE to: The configuration element is received in a system information block (SIB) signal or a radio resource control (RRC) signal.

4. The one or more computer-readable media of claim 1 , wherein the instructions, when executed, further cause the UE to: processing the configuration element to determine a low mobility criterion; determining that the UE is in a low mobility state based on one or more measurements at the UE and the low mobility criterion; as well as The RLM operation is performed based on a determination that the UE is in the low mobility state.

5. The one or more computer-readable media of claim 1 , wherein the instructions, when executed, further cause the UE to: processing the configuration elements to determine a cell edge criterion; determining, based on one or more measurements at the UE and the cell-edge criterion, that the UE is not located in an edge region of a serving cell; and The RLM operation is performed within the relaxed OOS evaluation period based on a determination that the UE is not located in the edge region of the serving cell.

6. One or more computer-readable media according to any one of claims 1 to 5, wherein the instructions, when executed, further cause the UE to: A relaxed layer 1 L1 measurement interval is determined based on the relaxation factor Q, wherein the relaxed L1 measurement interval is equal to: max(10 milliseconds (ms), 1.5 x Q x DRX cycle_length ,1.5x Q x T RLM-RS,M ), where DRX cycle_length is the length of the DRX cycle and T RLM-RS,M is the shortest period of all configured Radio Link Monitoring-Reference Signals RLM-RS, provided that DRX is enabled cycle_length Less than or equal to 320ms; or the relaxed L1 measurement interval is equal to DRX cycle_length , provided that DRX cycle_length Greater than 320ms.

7. One or more computer-readable media according to any one of claims 1 to 5, wherein the instructions, when executed, further cause the UE to: A relaxed layer 1 L1 measurement interval is determined based on the relaxation factor Q, wherein when discontinuous reception is not used, the relaxed L1 measurement interval is equal to Q x max (10 milliseconds, T RLM-RS,M ), where T RLM-RS,M It is the shortest period among all configured Radio Link Monitoring-Reference Signals RLM-RS.

8. One or more computer-readable media according to any one of claims 1 to 5, wherein the instructions, when executed, further cause the UE to: The relaxed synchronization IS evaluation period is determined based on the relaxation factor Q, where: When T DRX When the IS evaluation period is less than or equal to 320 milliseconds, the relaxed IS evaluation period is equal to max(100, Ceil(1.5x Q x M in x P)x Max(T DRX ,T CSI-RS )), where M in is 10, and T CSI-RS is the period of the channel state information-reference signal CSI-RS resource used for the RLM operation; or when DRX is not used, the relaxed IS evaluation period is equal to max(100, Ceil(M in x P x Q)x T CSI-RS ).

9. One or more computer-readable media according to any one of claims 1 to 5, wherein the instructions, when executed, further cause the UE to: The relaxed synchronization IS evaluation period is determined based on the relaxation factor Q, where: When T DRX When the IS evaluation period is less than or equal to 320 milliseconds, the relaxed IS evaluation period is equal to max(100, Ceil(7.5x P x Q)x Max(T DRX ,T SSB )); or when DRX is not used, the relaxed IS evaluation period is equal to max(100, Ceil(5x P x Q)x T SSB ).

10. A method of operating a base station, the method comprising: configuring one or more radio link monitoring-reference signals RLM-RS, wherein the one or more RLM-RS include a synchronization signal block SSB; transmitting a configuration element to a user equipment UE for determining a relaxation factor; as well as The relaxed asynchronous OOS evaluation period is determined based on the relaxation factor Q, wherein: the relaxed OOS evaluation period is equal to max(200, Ceil(15×P×Q)×max(T DRX ,T SSB )), where P is the sharing factor, T DRX is the DRX cycle length, and T SSB is the period of the SSB resource used for radio link monitoring RLM operations, The RLM operation is to be performed by the UE within the relaxed evaluation period, wherein the RLM operation is in a frequency range FR1. The method according to claim 10 , wherein the configuration element is a physical cell group configuration element.

12. The method according to claim 10, further comprising: The configuration element is transmitted in a Radio Resource Control (RRC) signal.

13. A user equipment (UE), comprising: a memory, configured to store a least common multiple LCM of a discontinuous reception (DRX) cycle and a radio link monitoring-reference signal (RLM-RS) period; and a processing circuit coupled to the memory to access the LCM and: Determine the asynchronous OOS assessment period based on the LCM, where: DRX When the OOS evaluation period is less than or equal to 320 milliseconds, the OOS evaluation period is equal to max(200, Ceil(15×P)×LCM(T DRX ,T SSB )), where P is the sharing factor, T SSB is the period of the synchronization signal block SSB, and LCM(T DRX ,T SSB )) is T DRX and T SSB LCM; as well as An RLM operation is performed during the OOS evaluation period, wherein the RLM operation is in a frequency range FR 1.

14. The UE according to claim 13, wherein the processing circuit is further configured to: Determine the synchronous IS evaluation period, where T DRX When the IS evaluation period is less than or equal to 320 milliseconds, the IS evaluation period is equal to max(100, Ceil(10x P)x LCM(T DRX ,T CSI-RS )), where T CSI-RS is the period of the channel state information-reference signal CSI-RS, and LCM(T DRX ,T CSI-RS )) is T DRX and T CSI-RS LCM.

15. The UE according to claim 13, wherein the processing circuit is further configured to: Determine the synchronous IS evaluation period, where T DRX When the IS evaluation period is less than or equal to 320 milliseconds, the IS evaluation period is equal to max(100, Ceil(7.5x P)x LCM(T DRX ,T SSB )).

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