Enhanced radio resource management

Abstract

Various aspects of the present disclosure relate to enhanced radio resource management. In one aspect, a UE determines whether at least one of a first triggering condition related to a state of the UE or a second triggering condition related to a low power wake-up signal configured for the UE is satisfied. The UE then performs at least one of (i) relaxed radio resource management measurements for at least one serving cell on a primary radio, or (ii) RRM measurement offloading from the MR to a low power wake-up receiver based on determining that at least one of the first triggering condition or the second triggering condition is satisfied. In this way, RRM in a wireless communication system can be enhanced.

Description

Technical Field

[0001] This disclosure relates to wireless communications, and more particularly to user equipment (UE), processors, and methods for enhanced radio resource management (RRM). Background Technology

[0002] A wireless communication system may include one or more network communication devices, such as base stations, which may also be referred to as eNodeB (eNB), next-generation NodeB (gNB), or other appropriate terms. Each network communication device (such as a base station) may support wireless communication for one or more user communication devices, also referred to as UE, or other appropriate terms. The wireless communication system may support wireless communication with one or more user communication devices by utilizing the resources of the wireless communication system (e.g., time resources (e.g., symbols, time slots, subframes, frames, etc.) or frequency resources (e.g., subcarriers, carriers, etc.)). Furthermore, the wireless communication system may support wireless communication across various wireless access technologies, including third-generation (3G), fourth-generation (4G), fifth-generation (5G), and other suitable wireless access technologies beyond 5G (e.g., sixth-generation (6G)).

[0003] To ensure that a UE in RRC_IDLE or RRC_INACTIVE mode camps on the optimal cell, the UE may need to perform mobility measurements. These mobility measurements may involve RRM measurements for mobility. In wireless communication systems, RRM is used to manage channel interference, radio resources, and other radio transmission characteristics. However, how to utilize RRM to improve the performance of devices (e.g., UEs) in wireless communication systems remains a desirable goal. Summary of the Invention

[0004] This disclosure relates to UEs, processors, and methods for enhanced radio resource management. Solutions utilizing embodiments of this disclosure can be used to implement enhanced RRM for mobility.

[0005] Some implementations of the UE described herein may include: at least one memory; and at least one processor coupled to the at least one memory and configured to cause the UE to: determine whether at least one of a first trigger condition related to the state of the UE or a second trigger condition related to a low-power wake-up signal (LP-WUS) configured for the UE is satisfied; and based on the determination that at least one of the first trigger condition or the second trigger condition is satisfied, perform at least one of the following: (i) a relaxed RRM measurement for at least one serving cell on the MR, or (ii) an RRM measurement offload from the MR to the low-power wake-up receiver (LP-WUS).

[0006] In some implementations, the first triggering condition includes one of the following: when the UE is in a state of low mobility or stationary, during a time window, the difference between the cell selection received level (Srxlev) for the serving cell and the Srxlev reference value for the serving cell is less than a first threshold; when the UE is in a state of low mobility or stationary, during the time window, the difference between the cell selection quality (Squal) for the serving cell and the Squal reference value for the serving cell is less than a second threshold; when the UE is not at the edge of the serving cell, during the time window, the Srxlev is greater than the first threshold; when the UE is not at the edge of the serving cell, during the time window, the Squal for the serving cell is greater than the second threshold; or any combination thereof.

[0007] In some implementations, the second triggering condition includes at least one of the following: the UE is within the coverage area of ​​the LP-WUS during the time window; or the reference signal measurement obtained by the LP-WUS reaches a third threshold during the time window.

[0008] In some implementations, the UE is made to perform at least one of the following: performing relaxed RRM measurements for the serving cell and neighboring cells on the MR when the UE is within the coverage area of ​​the LP-WUS.

[0009] In some implementations, the UE is made to perform at least one of the relaxed RRM measurement or the RRM measurement offload by performing RRM measurement offload from MR to LP-WUR, at least for the serving cell, when the UE is within the coverage area of ​​the LP-WUS.

[0010] In some implementations, the UE is made to perform at least one of the following: relaxing a portion of the RRM measurement on the MR for at least one of the neighboring cells or the serving cell when the UE is within the coverage area of ​​the LP-WUS; and offloading another portion of the RRM measurement to the LP-WUS.

[0011] In some implementations, at least one of relaxed RRM measurement or RRM measurement offloading is performed on MR if a first trigger condition is met.

[0012] In some implementations, the UE is made to perform at least one of relaxed RRM measurement or RRM measurement offloading by: performing RRM measurement offloading only for the serving cell when the reference signal measurement obtained by LP-WUR reaches a third threshold.

[0013] In some implementations, the UE is made to perform at least one of relaxed RRM measurement or RRM measurement offloading by: performing RRM measurement offloading for both the serving cell and neighboring cells when the reference signal measurement obtained by LP-WUR reaches a third threshold.

[0014] In some implementations, the UE is configured to perform at least one of relaxed RRM measurement or RRM measurement offloading by: performing RRM measurement offloading for a neighboring cell when the neighboring cell measurement relaxation condition and the second triggering condition on the MR are met.

[0015] In some implementations, the UE is made to perform at least one of the following: performing a relaxed RRM measurement or the RRM measurement offloading for the serving cell when a first triggering condition is met.

[0016] In some implementations, the UE is made to perform at least one of relaxed RRM measurement or RRM measurement offloading by performing RRM measurement offloading for the serving cell when a first triggering condition and a second triggering condition are met.

[0017] In some implementations, the UE is also configured to: stop relaxed RRM measurements or RRM measurement offload based on a third trigger condition.

[0018] In some implementations, the third triggering condition includes at least one of the following: the UE moves out of the coverage area of ​​the LP-WUS; the target reference signal measured by the LP-WUR from the serving cell meets a fourth threshold during the time window; the UE stops operations related to the LP-WUR; the LP-WUR detects a wake-up signal for MR; the UE performs uplink data transmission; the low mobility or stationary condition of the UE is not met for relaxed RRM measurement or RRM measurement offload; or the non-cell edge condition of the UE is not met for relaxed RRM measurement or RRM measurement offload.

[0019] In some implementations, the UE is also configured to: stop the relaxed RRM measurement when the first time period expires, during which the relaxed RRM measurement for the serving cell is performed on the MR.

[0020] In some implementations, the UE is also configured to: stop RRM measurement offloading when the second time period expires, during which RRM measurement offloading to the LP-WUR is performed for the serving cell, or for both the serving cell and neighboring cells.

[0021] In some implementations, the UE is made to relax a portion of the RRM measurement on the MR and offload another portion of the RRM measurement to the LP-WUR by: in the case of continuous monitoring, the offloaded RRM measurement is performed on the LP-WUR during the period in which the relaxed RRM measurement is performed on the MR.

[0022] In some implementations, the UE is made to relax a portion of the RRM measurement on the MR and offload another portion of the RRM measurement to the LP-WUR by: in the case of duty cycle monitoring, while performing the offloaded RRM measurement on the LP-WUR during the LP-WUR monitoring period, relaxing a portion of the RRM measurement on the MR during the LP-WUR monitoring period.

[0023] In some implementations, the UE is also configured to perform relaxed RRM measurements for neighboring cells after the relaxed RRM measurements for the serving cell have been performed several times.

[0024] Some implementations of the methods described herein may include: determining whether at least one of a first triggering condition related to the state of the UE or a second triggering condition related to a low-power wake-up signal (LP-WUS) configured for the UE is satisfied; and based on determining that at least one of the first triggering condition or the second triggering condition is satisfied, performing at least one of the following: (i) a relaxed RRM measurement for at least one serving cell on the MR, or (ii) an RRM measurement offload from the MR to the LP-WUS.

[0025] Some implementations of the processor described herein may include: at least one memory; and at least one controller coupled to the at least one memory and configured to cause the controller to: determine whether at least one of a first trigger condition related to the state of the UE or a second trigger condition related to a low-power wake-up signal (LP-WUS) configured for the UE is satisfied; and based on the determination that at least one of the first trigger condition or the second trigger condition is satisfied, perform at least one of the following: (i) relaxed RRM measurement for at least one serving cell on the MR, or (ii) RRM measurement offload from the MR to the LP-WUS.

[0026] It should be understood that the summary section is not intended to identify key or essential features of the embodiments of this disclosure, nor is it intended to limit the scope of this disclosure. Other features of this disclosure will become apparent from the following description. Attached Figure Description

[0027] Figure 1 An example of an enhanced RRM wireless communication system according to various aspects of this disclosure is shown.

[0028] Figure 2 A schematic diagram illustrating examples of RRM under different triggering conditions is shown.

[0029] Figure 3 A schematic diagram of another example of RRM under different triggering conditions is shown.

[0030] Figure 4 A schematic diagram illustrating another example of RRM under different triggering conditions is shown.

[0031] Figure 5 An example of an enhanced RRM device according to some aspects of this disclosure is shown.

[0032] Figure 6 An example of a processor for an enhanced RRM according to various aspects of this disclosure is shown.

[0033] Figure 7 A flowchart of a method for enhancing RRM according to various aspects of this disclosure is shown. Detailed Implementation

[0034] The principles of this disclosure will now be described with reference to some embodiments. It should be understood that these embodiments are for illustrative purposes only and to assist those skilled in the art in understanding and implementing this disclosure, and do not imply any limitation on the scope of this disclosure. The disclosure described herein can be implemented in various other ways besides those described below.

[0035] In the following description and claims, unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure pertains.

[0036] References to "an embodiment," "example embodiment," "embodiment," "some embodiments," etc., in this disclosure indicate that the described embodiments(s) may include a particular feature, structure, or characteristic, but not every embodiment must include that particular feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same(s) embodiments(s). Moreover, when a particular feature, structure, or characteristic is described in conjunction with an embodiment, it should be understood that, whether explicitly described or not, in conjunction with other embodiments, influencing such feature, structure, or characteristic is within the knowledge of those skilled in the art.

[0037] It should be understood that although the terms “first,” “second,” etc., may be used herein to describe various elements, these elements should not be limited by these terms. These terms are used only to distinguish one element from another. For example, a first element may also be referred to as a second element, and similarly, a second element may also be referred to as a first element, without departing from the scope of implementation. As used herein, the term “and / or” includes any and all combinations of one or more of the listed terms. In some examples, values, processes, or devices are referred to as “best,” “lowest,” “highest,” “minimum,” “maximum,” etc. It should be understood that such descriptions are intended to indicate that a choice can be made among many functional alternatives used, and that such a choice is not necessarily better, smaller, higher, or more preferred than other choices.

[0038] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments. Unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “the” used herein are also intended to include the plural forms. It should also be understood that the terms “comprising,” “including,” “having,” “having,” “containing,” and / or “including,” etc., specify the presence of said features, elements, and / or components, but do not exclude the presence or addition of one or more other features, elements, components, and combinations thereof. For example, the term “comprising” and its variations should be interpreted as open-ended terms meaning “including, but not limited to.” The term “based on” should be interpreted as “at least partially based on.” The terms “an implementation” and “implementation” should be interpreted as “at least one implementation.” The term “another implementation” should be interpreted as “at least one other implementation.” Expressions such as “A and / or B” can mean “only A,” “only B,” or “both A and B.” Other explicit or implicit definitions may be included below.

[0039] The various aspects of this disclosure are described in the context of wireless communication systems.

[0040] Figure 1An example of an enhanced RRM wireless communication system 100 according to various aspects of this disclosure is shown. The wireless communication system 100 may include one or more network entities 102 (also referred to as network devices (NEs)), one or more UEs 104, a core network 106, and a packet data network 108. The wireless communication system 100 may support various wireless access technologies. In some implementations, the wireless communication system 100 may be a 4G network, such as an LTE network or an advanced LTE (LTE-A) network. In some other implementations, the wireless communication system 100 may be a 5G network, such as an NR network. In other implementations, the wireless communication system 100 may be a combination of 4G and 5G networks, or other suitable wireless access technologies, including IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), and IEEE 802.20. The wireless communication system 100 may support wireless access technologies beyond 5G. Furthermore, the wireless communication system 100 may support technologies such as Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), or Code Division Multiple Access (CDMA).

[0041] Network entities 102 may be distributed throughout a geographic area to form a wireless communication system 100. One or more of the network entities 102 described herein may be, include, or may be referred to as network nodes, base stations (BS), network elements, radio access networks (RAN), base transceivers, access points, NodeBs, eNodeBs (eNBs), next-generation NodeBs (gNBs), or other suitable terms. Network entities 102 and UE 104 may communicate via a communication link, which may be a wireless or wired connection. For example, network entities 102 and UE 104 may perform wireless communication (e.g., receiving signaling, sending signaling) via a Uu interface.

[0042] Network entity 102 can provide a geographic coverage area 112, for which network entity 102 can support services (e.g., voice, video, packet data, messaging, broadcasting, etc.) for one or more UEs 104 within the geographic coverage area 112. For example, network entity 102 and UE 104 can support wireless communication of signals associated with services (e.g., voice, video, packet data, messaging, broadcasting, etc.) according to one or more radio access technologies. In some implementations, network entity 102 can be mobile, for example, a satellite associated with a non-terrestrial network (NTN). In some implementations, different geographic coverage areas 112 associated with the same or different radio access technologies can overlap, but different geographic coverage areas can be associated with different network entities 102. The information and signals described herein can be represented using any of a variety of different techniques and methods. For example, data, instructions, commands, information, signals, bits, symbols, and chips that may be mentioned throughout the description can be represented by voltage, current, electromagnetic waves, magnetic fields or particles, light fields or particles, or any combination thereof.

[0043] One or more UEs 104 may be distributed throughout the geographic area of ​​the wireless communication system 100. UE 104 may include or be referred to as a mobile device, wireless device, remote device, remote unit, handheld device, subscriber device, or some other suitable term. In some implementations, UE 104 may be referred to as a unit, base station, terminal, or client, etc. Alternatively, UE 104 may be referred to as an Internet of Things (IoT) device, Internet of Everything (IoE) device, or Machine-Type Communication (MTC) device, etc. In some implementations, UE 104 may remain stationary within the wireless communication system 100. In other implementations, UE 104 may be mobile within the wireless communication system 100.

[0044] One or more UEs 104 can be devices of different forms or with different functions. Figure 1 Some examples of UE 104 are shown. For example... Figure 1 As shown, UE 104 can communicate with various types of devices, such as network entity 102, other UE 104, or network devices (e.g., core network 106, packet data network 108, relay device, integrated access and backhaul (IAB) node, or another network device). Alternatively or additionally, UE 104 can support communication with other network entities 102 or UE 104, which may act as a relay in wireless communication system 100.

[0045] UE 104 can also support direct wireless communication with other UE 104s via communication link 114. For example, UE 104 can support direct wireless communication with another UE 104 via a device-to-device (D2D) communication link. In some implementations, such as vehicle-to-vehicle (V2V) deployments, vehicle-to-everything (V2X) deployments, or cellular V2X deployments, communication link 114 may be referred to as a side link. For example, UE 104 can support direct wireless communication with another UE 104 via a PC5 interface.

[0046] Network entity 102 may support communication with core network 106, or with another network entity 102, or both. For example, network entity 102 may interact with core network 106 via one or more backhaul links 116 (e.g., via S1, N2, N6, or another network interface). Network entities 102 may communicate with each other via backhaul links 116 (e.g., via X2, Xn, or another network interface). In some implementations, network entities 102 may communicate directly with each other (e.g., between network entities 102). In some other implementations, network entities 102 may communicate indirectly with each other (e.g., via core network 106). In some implementations, one or more network entities 102 may include sub-components, such as access network entities, which may be examples of access node controllers (ANCs). The ANC may communicate with one or more UEs 104 via one or more other access network transport entities, which may be referred to as wireless heads, smart wireless heads, or transmit-receive points (TRPs).

[0047] In some implementations, network entity 102 can be configured as a split architecture, which can be configured to utilize protocol stacks physically or logically distributed between two or more network entities 102, such as an Integrated Access Backhaul (IAB) network, an Open Radio Access Network (O-RAN) (e.g., a network configuration sponsored by the O-RAN Alliance), or a Virtual RAN (vRAN) (e.g., a Cloud RAN (C-RAN)). For example, network entity 102 may include one or more of the following: a Central Unit (CU), a Distributed Unit (DU), a Radio Unit (RU), a RAN Intelligent Controller (RIC) (e.g., a Near-RT RIC, a Non-RT RIC), a Service Management and Orchestration (SMO) system, or any combination thereof.

[0048] An RU can also be referred to as a radio head, intelligent radio head, remote radio head (RRH), remote radio unit (RRU), or transceiver point (TRP). In a split RAN architecture, one or more components of network entity 102 can be co-located, or one or more components of network entity 102 can be located in distributed locations (e.g., separate physical locations). In some implementations, one or more network entities 102 in a split RAN architecture can be implemented as virtual units (e.g., virtual CU (VCU), virtual DU (VDU), virtual RU (VRU)).

[0049] The division of functions among CU, DU, and RU can be flexible and can depend on the functions performed at the CU, DU, or RU (e.g., network layer functions, protocol layer functions, baseband functions, radio frequency functions, and any combination thereof) to support different functions. For example, a protocol stack division can be used between the CU and DU, allowing the CU to support one or more layers of the protocol stack, and the DU to support one or more different layers of the protocol stack. In some implementations, the CU can host upper-layer protocol layer (e.g., Layer 3 (L3), Layer 2 (L2)) functions and signaling (e.g., Radio Resource Control (RRC), Serving Data Adaptation Protocol (SDAP), Packet Data Convergence Protocol (PDCP)). The CU can connect to one or more DUs or RUs, which can host lower-layer protocol layers, such as Layer 1 (L1) (e.g., Physical (PHY) layer) or L2 (e.g., Radio Link Control (RLC) layer, Media Access Control (MAC) layer) functions and signaling, and each DU or RU can be at least partially controlled by the CU.

[0050] Alternatively, a functional partitioning of the protocol stack can be employed between the DU and RU, allowing the DU to support one or more layers of the protocol stack, and the RU to support one or more different layers of the protocol stack. The DU can support one or more different cells (e.g., via one or more RUs). In some implementations, the functional partitioning between the CU and DU, or between the DU and RU, can be within the protocol layer (e.g., some functions for a protocol layer can be performed by one of the CU, DU, or RU, while other functions of that protocol layer are performed by another of the CU, DU, or RU).

[0051] The CU can also be functionally divided into CU control plane (CU-CP) and CU user plane (CU-UP) functions. The CU can be connected to one or more DUs via midhaul communication links (e.g., F1, F1-c, F1-u), and the DUs can be connected to one or more RUs via fronthaul communication links (e.g., open fronthaul (FH) interfaces). In some implementations, the midhaul or fronthaul communication links can be implemented based on interfaces (e.g., channels) between layers of a protocol stack supported by corresponding network entities 102 communicating via such communication links.

[0052] Core network 106 can support user authentication, access authorization, tracking, connectivity, and other access, routing, or mobility functions. Core network 106 can be an evolved packet core (EPC) or a 5G core (5GC), which may include control plane entities that manage access and mobility (e.g., mobility management entity (MME), access and mobility management functions (AMF)) and user plane entities that route or interconnect packets to external networks (e.g., serving gateway (S-GW), packet data network (PDN) gateway (P-GW), or user plane function (UPF)). In some implementations, the control plane entities may manage non-access stratum (NAS) functions, such as mobility, authentication, and bearer management (e.g., data bearers, signaling bearers, etc.) for one or more UEs 104 served by one or more network entities 102 associated with core network 106.

[0053] Core network 106 can communicate with packet data network 108 via one or more backhaul links 116 (e.g., via S1, N2, N6, or another network interface). Packet data network 108 may include application server 118. In some implementations, one or more UEs 104 may communicate with application server 118. UE 104 may establish a session (e.g., Protocol Data Unit (PDU) session, etc.) with core network 106 via network entity 102. Core network 106 can use the established session (e.g., an established PDU session) to route services (e.g., control information, data, etc.) between UE 104 and application server 118. A PDU session may be an example of a logical connection between UE 104 and core network 106 (e.g., one or more network functions of core network 106).

[0054] In the wireless communication system 100, network entity 102 and UE 104 can use the resources of the wireless communication system 100 (e.g., time resources (e.g., symbols, time slots, subframes, frames, etc.) or frequency resources (e.g., subcarriers, carriers)) to perform various operations (e.g., wireless communication). In some implementations, network entity 102 and UE 104 can support different resource structures. For example, network entity 102 and UE 104 can support different frame structures. In some implementations, such as in 4G, network entity 102 and UE 104 can support a single frame structure. In some other implementations, such as in 5G and other suitable wireless access technologies, network entity 102 and UE 104 can support various frame structures (i.e., multiple frame structures). Network entity 102 and UE 104 can support various frame structures based on one or more sets of parameters.

[0055] One or more parameter sets may be supported in the wireless communication system 100, and the parameter sets may include subcarrier spacing and cyclic prefix. The first parameter set (e.g., =0) can be associated with the first subcarrier spacing (e.g., 15 kHz) and the regular cyclic prefix. In some implementations, the first set of parameters (e.g., ) associated with the first subcarrier spacing (e.g., 15 kHz) is... =0) allows one time slot to be used per subframe. The second parameter set (e.g., =1) can be associated with the second subcarrier spacing (e.g., 30 kHz) and the regular cyclic prefix. The third parameter set (e.g., =2) can be associated with the third subcarrier spacing (e.g., 60 kHz) and the regular cyclic prefix or extended cyclic prefix. The fourth parameter set (e.g., =3) can be associated with the fourth subcarrier spacing (e.g., 120 kHz) and the regular cyclic prefix. The fifth parameter set (e.g., =4) can be associated with the fifth subcarrier spacing (e.g., 240 kHz) and the regular cyclic prefix.

[0056] Time intervals for resources (e.g., communication resources) can be organized according to frames (also known as radio frames). Each frame can have a duration, for example, 10 milliseconds (ms). In some implementations, each frame can include multiple subframes. For example, each frame can include 10 subframes, and each subframe can have a duration, for example, 1 ms. In some implementations, each frame can have the same duration. In some implementations, each subframe of a frame can have the same duration.

[0057] Alternatively or concurrently, the time intervals of resources (e.g., communication resources) can be organized according to time slots. For example, a subframe may include a certain number (e.g., quantity) of time slots. The number of time slots in each subframe may also depend on one or more parameter sets supported in the wireless communication system 100. For example, the first, second, third, fourth, and fifth parameter sets (i.e., ...) associated with corresponding subcarrier intervals of 15 kHz, 30 kHz, 60 kHz, 120 kHz, and 240 kHz. =0、 =1、 =2、 =3、 =4) One time slot per subframe, two time slots per subframe, four time slots per subframe, eight time slots per subframe, and sixteen time slots per subframe can be used accordingly. Each time slot can include a certain number (e.g., quantity) of symbols (e.g., OFDM symbols). In some implementations, the number (e.g., quantity) of time slots per subframe may depend on the parameter set. For a regular cyclic prefix, one time slot may include 14 symbols. For an extended cyclic prefix (e.g., for a 60 kHz subcarrier spacing), one time slot may include 12 symbols. The relationship between the number of symbols per time slot, the number of time slots per subframe, and the number of time slots per frame for both regular and extended cyclic prefixes may depend on the parameter set. It should be understood that for the first parameter set (e.g., ...) associated with the first subcarrier spacing (e.g., 15 kHz)... The reference of (=0) can be used interchangeably between subframes and time slots.

[0058] In the wireless communication system 100, the electromagnetic (EM) spectrum can be divided into various categories, bands, channels, etc., based on frequency or wavelength. For example, the wireless communication system 100 can support one or more operating bands, such as frequency ranges specified as FR1 (410 MHz - 7.125 GHz), FR2 (24.25 GHz - 52.6 GHz), FR3 (7.125 GHz - 24.25 GHz), FR4 (52.6 GHz - 114.25 GHz), FR4a or FR4-1 (52.6 GHz – 71 GHz), and FR5 (114.25 GHz – 300 GHz). In some implementations, network entity 102 and UE 104 can perform wireless communication through one or more of the operating bands. In some implementations, FR1 can be used by network entity 102 and UE 104, along with other devices or apparatuses, for cellular communication services (e.g., control information, data). In some implementations, FR2 can be used by network entity 102 and UE 104, as well as other devices or apparatuses, for short-range, high-data-rate capabilities.

[0059] FR1 can be associated with one or more parameter sets (e.g., at least three parameter sets). For example, FR1 can be associated with the first parameter set (e.g., =0) is associated with which includes a 15 kHz subcarrier spacing; FR1 can be associated with a second set of parameters (e.g., =1) is associated with which includes a 30 kHz subcarrier spacing; and FR1 can be associated with a third parameter set (e.g., =2) is associated with a 60 kHz subcarrier spacing. FR2 can be associated with one or more parameter sets (e.g., at least two parameter sets). For example, FR2 can be associated with a third parameter set (e.g., =2) is associated with, which includes a 60 kHz subcarrier spacing; and with a fourth parameter set (e.g., =3) is associated with it, which includes a 120 kHz subcarrier spacing.

[0060] RRM measurements can include serving cell measurements and neighboring cell measurements, which can be in-frequency or out-of-frequency (including out-of-frequency RAT) measurements. For UEs operating using LP-WUR (also known as LR), the use of the primary radio (MR) for mobility measurements has a significant impact on UE power saving because the UE needs to frequently initiate MR for measurements, especially for serving cell measurements, which must be performed once per second or per inactive / idle discontinuous reception (I-DRX) cycle at FR1. This negates most of the UE power saving benefits of LP-WUS / WUR.

[0061] To achieve UE energy savings through LP-WUS / WUR, RRM measurements via MR on the serving cell and neighboring cells can be relaxed or stopped when the UE uses LP-WUS or when the MR is in deep sleep. The energy saving and RedCap work items in 3GPP Releases 16 / 17 have already introduced relaxed RRM measurement on neighboring cells. However, further relaxation, or even measurements not via MR, can be considered here, and serving cell or neighboring cell measurements can be offloaded to the LR. Relaxed RRM measurements on the serving cell and neighboring cells should be contingent upon feasibility or support for RRM measurements on the LR.

[0062] Specifically, based on the different serving cell / neighboring cell measurement behaviors for MR and LR, RRM measurement relaxation or offloading can be classified into the following cases:

[0063] It should be understood that the serving cell / neighboring cell measurements in the different scenarios described above can be combined into any RRM strategy. For example, in an implementation combining relaxation and offloading, the serving cell measurement on the MR is relaxed, and the neighboring cell measurement is offloaded to the LR. In another implementation combining relaxation and offloading, the serving cell measurement on the MR is relaxed, and the neighboring cell measurement is still performed on the MR. Further details and other implementations will be described below.

[0064] Now for reference Figures 2 to 4 The diagrams illustrate various examples of RRM under different triggering conditions. This document provides triggering conditions (e.g., a first triggering condition or a second triggering condition) for RRM measurement relaxation on MR or RRM measurement offloading from MR to LR. Triggering conditions for RRM measurement relaxation or RRM measurement offloading can simultaneously consider UE state and LP WUS / WUR conditions. Figures 2 to 4 The diagram in the diagram may refer to UE104 in the wireless communication system 100. More details about the enhanced RRM will be found in the description of UE 104.

[0065] In the implementation described herein, the MR, Tx / Rx modules operate for NR signals / channels other than those associated with low-power wake-up, and the LR, Rx modules operate for receiving / processing signals / channels associated with low-power wake-up.

[0066] By configuring the enhanced RRM, UE 104 determines whether at least one of the triggering conditions related to the state of UE 104, or the triggering condition related to the LP-WUS / WUR configured for UE 104, is met. In some implementations, the triggering condition related to the state of UE 104 (condition 1-1) may refer to a low mobility or stationary criterion. Specifically, regarding condition 1-1, if UE 104 is in a low mobility or stationary state, during the time window, the difference between the cell selection received level value (Srxlev) for the serving cell and the Srxlev reference value for the serving cell is less than a threshold (e.g., a first threshold). In other words, the low mobility or stationary criterion for the MR RRM measurement is met, i.e., (SrxlevRef-mr-Srxlev-mr). SearchThresholdP -mr. Srxlev-mr is the cell selection received level (dB) of the serving cell performed by the MR. SrxlevRef-mr is the reference Srxlev value (dB) of the serving cell performed by the MR. After selecting or reselecting a new cell, or if (Srxlev-mr - SrxlevRef-mr) > 0, or for T SearchDeltaP-mr ​If the relaxation measurement criteria are not met, UE 104 should set the value of SrxlevRef to the current Srxlev value of the serving cell. SearchThresholdP -mr is a relaxed Srxlev threshold (in dB) for measurements of the MR serving cell. The Srxlev threshold for low mobility and the Srxlev threshold for stationary standards are independently (pre) configured by the network.

[0067] Alternatively, regarding condition 1-1, if UE 104 is in a low-mobility or stationary state, during the time window, the difference between the cell selection quality value (Squal) for the serving cell and the Squal reference for the serving cell is less than a threshold (e.g., a second threshold), i.e., SqualRef-mr – Squal-mr. SearchThresholdQ -mr, if S SearchThresholdQ -mr is configured. Squal-mr is the cell selection quality value (dB) of the serving cell performed by the MR. SqualRef-mr is the reference Squal-mr value (dB) of the serving cell performed by the MR. SearchThresholdQ -mr is a relaxed Squal threshold (in dB) for measurements of the MR serving cell. The Squal threshold for low mobility and the Squal threshold for stationary criteria are (pre)configured independently by the network.

[0068] In some implementations, the triggering conditions (conditions 1-2) related to the state of UE 104 can refer to not being at the cell edge standard. Specifically, regarding conditions 1-2, if UE 104 is not at the edge of the serving cell, then Srxlev is greater than a first threshold during the time window, i.e., Srxlev-mr > S SearchThresholdP -mr.

[0069] Alternatively, regarding conditions 1-2, if UE 104 is not at the edge of the serving cell, then during the time window, Squal for the serving cell is greater than the second threshold, i.e., if S... SearchThresholdQ -mr is configured, Squal-mr > S SearchThresholdQ -mr.

[0070] In some implementations, there are conditions 1-3 for triggering. Regarding conditions 1-3, both the low mobility or stationary criterion for MR measurement and the criterion of not being at the cell edge are met, that is, conditions 1-1 and 1-2 above are met simultaneously.

[0071] ​It should be understood that the aforementioned low mobility criteria, stationary criteria, and non-cell edge criteria are defined as triggering conditions related to the UE state. That is, the first triggering condition may be equivalent to the low mobility criteria, stationary criteria, and non-cell edge criteria defined for neighboring cell measurement relaxation conditions, or may be independently (pre-)configured with the low mobility criteria, stationary criteria, and non-cell edge criteria defined for neighboring cell measurement relaxation conditions. Specifically, the threshold values ​​for the aforementioned low mobility or stationary criteria and non-cell edge criteria for UE104 may be configured independently or not independently with the low mobility or stationary criteria and non-cell edge criteria defined for neighboring cell measurement relaxation conditions, and specific values ​​may be (pre-)configured with the same or different values.

[0072] In some implementations, the triggering conditions (conditions 2-1 and 2-2) associated with LP-WUS / WUR can refer to LP-WUS signal conditions. Regarding condition 2-1, UE 104 is within the coverage area of ​​LP-WUS during the time window. UE 104 can determine condition 2-1 based on the measured Reference Signal Received Power (RSRP) or Reference Signal Received Quality (RSRQ) of the reference signal from the serving cell on the LR (e.g., compared to an entry RSRP or RSRQ threshold in the system information for a specific time window). For example, UE 104 is considered to be within the coverage area of ​​LP-WUS when the measured RSRP or RSRQ value of the reference signal from the serving cell on the LR is higher than a (pre)configured entry RSRP or RSRQ threshold during the time window. Regarding condition 2-2, the reference signal measurement obtained by LP-WUR reaches a threshold during the time window. For example, the measured RSRP or RSRQ of the reference signal from the serving cell on the LR meets a specific threshold during the time window. It should be understood that the threshold in condition 2-2 can be higher than the threshold in condition 2-1 used to define the LP-WUS coverage area. The reference signal for LR measurement can be, for example, the primary synchronization signal (PSS) / secondary synchronization signal (SSS) / physical broadcast channel (PBCH) demodulation reference signal (DMRS), LP WUS waveform sequence, low power synchronization signal (LP-SS), etc.

[0073] Subsequently, if UE 104 determines that at least one of the two triggering conditions is met, UE 104 performs at least a relaxed RRM measurement for the serving cell on the MR, or performs an RRM measurement offload from the MR to the LP-WUR, or both.

[0074] By considering the states of both the UE and the LP WUS / WUR, when both conditions are configured, the UE 104 can determine whether to relax the serving cell measurement on the MR or perform RRM measurement offloading from the MR to the LR. For example, when at least one of the UE state conditions (conditions 1-1, 1-2 and 1-3) and at least one of the LP WUS / WUR conditions (conditions 2-1 and 2-2) defined above are satisfied simultaneously, or when one of the UE state conditions or one of the LP WUS / WUR conditions defined above is satisfied, only the serving cell measurement is offloaded, or both the serving cell and neighboring cell measurements are offloaded.

[0075] For example, when both conditions 1-1 and 2-1 are met during a specific time window, UE 104 may perform the relaxed RRM measurement and / or RRM measurement offloading described herein. When both conditions 1-2 and 2-1 are met during a specific time window, UE 104 may perform the relaxed RRM measurement and / or RRM measurement offloading described herein. When both conditions 1-3 and 2-1 are met during a specific time window, UE 104 may perform the relaxed RRM measurement and / or RRM measurement offloading described herein. When both conditions 1-1 and 2-2 are met during a specific time window, UE 104 may perform the relaxed RRM measurement and / or RRM measurement offloading described herein. When both conditions 1-2 and 2-2 are met during a specific time window, UE 104 may perform the relaxed RRM measurement and / or RRM measurement offloading described herein. When both conditions 1-3 and 2-2 are met during a specific time window, UE 104 may perform the relaxed RRM measurement and / or RRM measurement offloading as described herein. When any one of conditions 1-1, 1-2, and 1-3 is met during a specific time window, UE 104 may perform the relaxed RRM measurement and / or RRM measurement offloading as described herein. When any one of conditions 2-1 and 2-2 is met during a specific time window, UE 104 may perform the relaxed RRM measurement and / or RRM measurement offloading as described herein.

[0076] In addition to MR serving cell measurement relaxation, traditional RRM relaxation conditions for neighboring cells can be applied. Since neighboring cell measurements are triggered by serving cell measurement results, if the serving cell measurement on MR is relaxed, for example, by X times, the neighboring cell measurement can also be relaxed. In other words, the UE can perform relaxed RRM measurements for neighboring cells after the relaxed RRM for the serving cell has been performed several times.

[0077] Furthermore, based on the above configuration conditions, and considering different alternatives regarding UE measurement behavior, UE 104 can be based on, as follows: Figure 2and Figure 3 The different standards shown have different states. In some examples, the specific measurement behavior regarding relaxation or unloading when the trigger condition is met depends on the UE implementation. In other examples, the specific measurement behavior performed by the UE under different trigger conditions is (pre)configured by the network.

[0078] For example, in Option 1, the MR can perform RRM relaxation on serving cell measurements, and the LR does not perform RRM measurements. In Option 2, the MR can perform only neighboring cell measurements and offload serving cell measurements to the LR, and the LR performs serving cell measurements. In Option 3, the MR does not perform RRM measurements and can offload RRM measurements to the LR, and the LR performs both serving cell measurements and neighboring cell measurements.

[0079] like Figure 2 As shown, the triggering conditions related to the UE state are met outside the LP WUS coverage area. Figure 2 In some implementations, when UE 104 (e.g., UE1) is within coverage but does not meet the triggering conditions related to the UE state, the MR can perform serving cell and neighboring cell measurements in the conventional manner. When UE 104 (e.g., UE2) meets the triggering conditions(s) related to the UE state and is outside the LP WUS coverage area, the MR can perform neighboring cell measurement relaxation in the conventional manner.

[0080] exist Figure 2 In some implementations, when UE 104 (e.g., UE3) is within the coverage area of ​​LP-WUS, the MR can perform at least one of serving cell measurement relaxation and neighboring cell measurement relaxation, and / or RRM measurement offloading from the MR to the LR. As one implementation, if UE 104 is within the coverage area of ​​LP-WUS, UE 104 can perform relaxed RRM measurements on the MR for both the serving cell and neighboring cells. As another implementation, if UE 104 is within the coverage area of ​​LP-WUS, UE 104 can perform RRM measurement offloading from the MR to the LR-WUS for at least one of the serving cell or neighboring cells.

[0081] As an alternative implementation, if UE 104 is within the coverage area of ​​LP-WUS, UE 104 can offload a portion of the RRM measurements for at least one of the serving cell or neighboring cells to LP-WUR. For example, if UE 104 is within the coverage area of ​​LP-WUS, UE 104 can relax a portion of the RRM measurements for at least one of the neighboring cells or serving cell on MR, and can offload another portion of the RRM measurements to LP-WUR.

[0082] As another implementation, if UE 104 is within the coverage area of ​​LP-WUS, UE 104 can offload RRM measurements for at least one of the serving cells or neighboring cells to LP-WUS.

[0083] exist Figure 2 In some implementations, when UE 104 (e.g., UE4) is within the coverage area of ​​a good-quality LP-WUS, the MR can offload only the serving cell measurements to the LR, or offload both the serving cell and neighboring cell measurements to the LR. As one implementation, if the reference signal measurement value (i.e., RSRP or RSRQ) obtained from the LP-WUS reaches a threshold (condition 2-2), UE 104 can perform RRM measurement offloading only for the serving cell. As another implementation, if the reference signal measurement value (i.e., RSRP or RSRQ) obtained from the LP-WUS reaches a threshold (condition 2-2), UE 104 can perform RRM measurement offloading for both the serving cell and neighboring cells.

[0084] like Figure 3 As shown, multiple triggering conditions related to the UE state are located within the LP-WUS coverage area. Figure 3 In some implementations, when UE 104 (e.g., UE1) is within the cell coverage area but outside the LP-WUS coverage area, the MR can perform serving cell and neighboring cell measurements in the conventional manner. When UE 104 (e.g., UE2) is within the LP-WUS coverage area but does not meet (multiple) triggering conditions related to the UE state, the MR can perform serving cell and neighboring cell measurements in the conventional manner.

[0085] exist Figure 3 In some implementations, when UE 104 (e.g., UE 3) is within LP-WUS coverage and meets at least one of the triggering conditions related to UE state, the MR can perform at least one of serving cell measurement relaxation and neighboring cell measurement relaxation, and / or RRM measurement from the MR to the LR. As one implementation, if UE 104 is within LP-WUS coverage and meets multiple triggering conditions related to UE state on the MR, UE 104 can perform relaxed RRM measurements for the serving cell and neighboring cells on the MR.

[0086] As an alternative implementation, if UE 104 is within the coverage area of ​​LP-WUS and meets at least one of the triggering conditions related to UE state on MR, then UE 104 may perform RRM measurement offloading from MR to LR-WUR for at least one of the serving cell(s) or neighboring cells(s).

[0087] As another implementation, if UE 104 is within the coverage area of ​​LP-WUS and meets at least one of the triggering conditions related to UE state on MR, then UE 104 can offload a portion of the RRM measurements for at least one of the serving cell(s) or neighboring cells(s) to LP-WUR. For example, if UE 104 is within the coverage area of ​​LP-WUS and meets the triggering conditions related to UE state on MR, then UE 104 can relax a portion of the RRM measurements for at least one of the neighboring cells or serving cell(s) on MR, and can offload another portion of the RRM measurements to LP-WUR.

[0088] As another implementation, if UE 104 is within the coverage area of ​​LP-WUS and meets (multiple) triggering conditions related to UE state on MR, then UE 104 can offload the entire RRM measurement for at least one of the serving cell or neighboring cells to LP-WUR.

[0089] exist Figure 3 In some implementations, when UE 104 (e.g., UE4) is within the coverage area of ​​a good-quality LP-WUS, the MR can offload only the serving cell measurements to the LR, or offload both the serving cell and neighboring cell measurements to the LR. As one implementation, if the reference signal measurement value (i.e., RSRP or RSRQ) obtained from the LP-WUS reaches a threshold (condition 2-2), UE 104 can perform RRM measurement offloading only for the serving cell. As another implementation, if the reference signal measurement value (i.e., RSRP or RSRQ) obtained from the LP-WUS reaches a threshold (condition 2-2), UE 104 can perform RRM measurement offloading for both the serving cell and neighboring cells (multiple).

[0090] In some implementations, UE 104 may first determine whether to perform MR serving cell measurement relaxation based on UE state conditions, such as whether UE 104 meets conditions 1-1, 1-2, or 1-3 as defined above. If at least one of the UE state conditions is met, UE 104 may determine to perform MR serving cell measurement relaxation and, depending on the measurement quality of the LR, determine whether to offload serving cell measurements or neighboring cell measurements to the LR. More details on these implementations will refer to [reference needed]. Figure 4 describe.

[0091] like Figure 4As shown, in addition to cell coverage, there can be two types of conditional coverage for cell measurement relaxation: the conditional coverage defined by the measurement relaxation conditions of (multiple) MR neighboring cells, and the conditional coverage defined by the measurement relaxation conditions of (multiple) MR serving cells. The conditional coverage defined by the measurement relaxation conditions of (multiple) MR neighboring cells is equal to or more relaxed than the conditional coverage defined by the measurement relaxation conditions of (multiple) MR serving cells.

[0092] exist Figure 4 In some implementations, UE 104 may perform RRM measurements in a conventional manner when UE 104 (e.g., UE1) does not meet at least one of the neighboring cell measurement relaxation conditions as defined conventionally.

[0093] exist Figure 4 In some implementations, when UE 104 (e.g., UE2) meets the traditional neighbor cell measurement relaxation conditions, the MR can perform neighbor cell measurement relaxation. Subsequently, UE 104 (e.g., UE2) can determine whether at least one of the LP WUS / WUR conditions (i.e., condition 2-1 or 2-2) is met, and the MR can offload neighbor cell measurements to the LR. As one implementation, if the neighbor cell measurement relaxation conditions on the MR and the triggering conditions associated with the LP WUS / WUR are met, UE 104 can perform RRM measurement offloading for neighbor cells.

[0094] exist Figure 4 In some implementations, the MR can perform serving cell measurement relaxation when UE 104 (e.g., UE3) meets (multiple) MR serving cell measurement relaxation conditions. These (multiple) MR serving cell measurement relaxation conditions can refer to the satisfaction of UE state conditions defined above (i.e., at least one of conditions 1-1, 1-2, or 1-3). It should be understood that for MR serving cell measurement relaxation and neighboring cell measurement relaxation conditions related to UE state, such as low mobility or stationary criteria or not being at the cell edge criteria, thresholds are independently or non-independently (pre)configured by the NW with the same or different values. UE 104 can then determine whether at least one of the LP WUS / WUR conditions (e.g., condition 2-1 or 2-2) is satisfied. If at least one of the LP WUS / WUR conditions is satisfied, the MR can offload serving cell measurements to the LR.

[0095] As one implementation, if multiple triggering conditions related to the state of UE 104 are met, UE 104 can perform relaxed RRM measurements for the serving cell. As another implementation, if multiple triggering conditions related to the state of UE 104 and multiple triggering conditions related to LP WUS / WUR are met, UE 104 can perform RRM measurement offloading for the serving cell.

[0096] In some implementations, a fallback mechanism is provided for RRM relaxation or RRM measurement offloading from MR to LR. For example, UE 104 can perform MR measurement relaxation or measurement offloading with several necessary conditions defined for energy saving purposes. However, considering that relaxed measurements or LR measurements may still result in some degree of accuracy loss, a fallback mechanism needs to be considered so that UE 104 stops RRM measurement relaxation or offloading and falls back to the conventional measurement mechanism, thereby ensuring mobility performance.

[0097] UE 104 may stop RRM measurement relaxation or offloading and fall back to conventional RRM measurement when at least one of the following conditions is met: that is, MR may fall back to perform serving cell measurement, or perform both serving cell and neighboring cell measurement. In other words, UE 104 may stop relaxed RRM measurement or offload RRM measurement from MR to LR based on certain trigger conditions(s).

[0098] In some implementations, the triggering condition for the fallback mechanism may refer to the condition that the reference signal measurement value of the serving cell, measured by LP-WUR, meets a certain threshold during the time window. In these implementations, when the measured RSRP or RSRQ value of the reference signal from the serving cell via LR meets the exit RSRP threshold within a specific time window, UE 104 can stop RRM measurement relaxation or offloading and fall back to conventional RRM measurement. The reference signal for LR measurement can be, for example, PSS / SSS / PBCH DMRS, LP WUS waveform sequence, LP-SS, etc. LR can stop performing only the serving cell measurement, or stop performing both the serving cell and neighboring cell measurements based on different exit thresholds. For example, LR can stop performing the serving cell measurement when (multiple) LR measurement results meet a first exit threshold during the time window. As another example, LR can stop performing both the serving cell and neighboring cell measurements when (multiple) LR measurement results meet a second exit threshold during the time window (e.g., when UE 104 moves out of LP WUS coverage).

[0099] Alternatively, the triggering condition for the fallback mechanism may refer to the condition under which UE 104 stops LP-WUS-related operations. In this implementation, when UE 104 stops LP-WUS operations (e.g., UE 104 disables its LP WUR, or UE 104 stops LP-WUS monitoring), UE 104 may stop RRM measurement relaxation or offloading and fall back to conventional RRM measurement.

[0100] Alternatively, the triggering condition for the fallback mechanism may refer to the condition that the LP-WUR detects a wake-up signal for the MR. In this implementation, when the LR detects a wake-up indication for the MR, i.e., when the LR detects a wake-up signal and the MR subsequently wakes up, the UE 104 may stop RRM measurement relaxation or offloading and fall back to conventional RRM measurement.

[0101] Alternatively, the triggering condition for the fallback mechanism may refer to the condition under which UE 104 will perform uplink data transmission. In this implementation, when UE 104 has UL data transmission (i.e., UL data arrives), UE 104 may stop RRM measurement relaxation or offloading and fall back to conventional RRM measurement.

[0102] Alternatively, the triggering condition for the fallback mechanism may refer to the condition that the low mobility or quiescent criteria of UE 104 are not met for relaxed RRM measurements or RRM measurement offloading. In this implementation, when UE 104 determines that the quiescent criterion is not met through relaxed measurements on the serving cell in the MR or through offloading measurements on the serving cell in the LR, UE 104 may stop RRM measurement relaxation or offloading and fall back to conventional RRM measurements.

[0103] Alternatively, the triggering condition for the fallback mechanism may refer to the condition that the UE 104 is not at the cell edge standard for relaxed RRM measurements or RRM measurement offloading is not met. In this implementation, when the UE 104 determines that (multiple) non-cell-edge conditions are not met through relaxed measurement results on the serving cell in the MR or offloading measurement results on the serving cell in the LR, the UE 104 may stop RRM measurement relaxation or offloading and fall back to conventional RRM measurements.

[0104] Alternatively, the triggering condition for the fallback mechanism may refer to the condition that the cell (re)selection is triggered based on (multiple) relaxed measurements.

[0105] When the MR performs RRM measurement relaxation on the serving cell, UE 104 can determine that the backoff conditions for the aforementioned low mobility or stationary criteria, as well as the non-cell edge criteria, are not met by detecting the relaxed measurement results (i.e., the RSRQ or RSRP value of the serving cell on the MR). When the serving cell measurement is offloaded from the MR to the LR, UE 104 can determine that the backoff conditions for the low mobility or stationary criteria, as well as the non-cell edge criteria, are not met by detecting the offloaded measurement results (i.e., the RSRQ or RSRP value of the serving cell on the LR). Specifically, an additional offset can be (pre-)configured for the LR measurement results of the serving cell or neighboring cells to compensate for potential accuracy loss in the LR measurement.

[0106] In some implementations, to ensure mobility performance, a time period can be (pre)configured for UE 104 to perform RRM measurement relaxation on the MR or RRM measurement offloading from the MR to the LR. Specifically, in the case of relaxation, the MR can be triggered to perform RRM measurement relaxation against the serving cell during a (pre)configured first time period, and when the first time period expires, UE 104 can stop the relaxation and fall back to (multiple) traditional RRM measurements until the defined triggering conditions are met. As one implementation, UE 104 can stop the relaxed RRM measurements when the first time period (during which the relaxed RRM measurements on the MR are performed against the serving cell) expires.

[0107] More specifically, for the offloading scenario, LR can be triggered during a (pre)configured second time period to perform offloading measurements (serving cell measurement or serving cell and neighboring cell measurement), and when the second time period expires, UE104 can fall back to MR measurements until the defined triggering conditions are met. As one implementation, UE104 can stop RRM measurement offloading when the second time period (during which RRM measurements offloaded to LP-WUR are performed for the serving cell or both serving cell and neighboring cell) expires.

[0108] In some implementations as described above, the LR can perform multiple relaxation measurements when MR relaxation is triggered. When LP WUS / WUR is (pre)configured, UE 104 can operate in different modes, i.e., continuous monitoring or duty cycle monitoring, because the LR needs to monitor LP-WUS according to the configured period regardless. When MR is relaxed under specific conditions, the LR can perform multiple relaxation measurements during the MR relaxation period to ensure better mobility performance. Relaxation measurements can include both serving cell and neighboring cell measurements.

[0109] For continuous monitoring, i.e., LP-WUR is always on, when (multiple) defined triggering conditions are met, MR can perform RRM relaxation on at least one of (multiple) serving cells and neighboring cells, and LR can perform (multiple) corresponding relaxation measurements during the MR relaxation time. In other words, in the case of continuous monitoring, during the time period when the relaxed RRM measurement is performed on MR, UE 104 can perform the offloaded relaxed RRM measurement on LP-WUR.

[0110] For duty cycle monitoring, i.e., when LP-WUR switches between on and off states, UE 104 can perform at least one of serving cell measurements and neighboring cell measurements via LR during the LR monitoring period, while simultaneously stopping MR measurements on at least one of the serving cell and neighboring cells during that period. In other words, in the case of duty cycle monitoring, during the LP-WUS monitoring period, UE 104 can perform the offloaded relaxed RRM measurements on LP-WUS, while simultaneously stopping RRM measurements on MR during the LP-WUS monitoring period.

[0111] With the aforementioned triggering conditions, RRM relaxation for serving cell measurements on the MR can be supported, and when certain triggering conditions(s) are met, (multiple) RRM measurements(s) can be offloaded from the MR to the LP-WUR. Both serving cell and neighboring cell measurements can be considered. The triggering conditions for the UE MR to perform serving cell measurement relaxation or offloading can consider both the UE state and the LP WUS / WUR conditions. Furthermore, a fallback mechanism for RRM measurements for RRM relaxation or offloading from the MR to the LR is provided to ensure mobility performance. In addition, offloading implementations corresponding to UE behavior are also provided for improved RRM.

[0112] Figure 5 An example of an enhanced RRM device 500 according to various aspects of this disclosure is shown. Device 500 may be an example of the UE 104 described herein. Device 500 may support wireless communication with one or more network entities 102, UE 104, or any combination thereof. Device 500 may include components for bidirectional communication, including components for transmitting and receiving communications, such as processor 502, memory 504, transceiver 506, and optional I / O controller 508. These components may communicate electronically or otherwise coupled (e.g., operatively, communicatively, functionally, electronically, electrically) via one or more interfaces (e.g., buses).

[0113] Processor 502, memory 504, transceiver 506, or various combinations thereof, or components thereof, may be examples of components for performing various aspects of the present disclosure as described herein. For example, processor 502, memory 504, transceiver 506, or various combinations thereof, or components thereof, may support methods for performing one or more of the operations described herein.

[0114] In some implementations, processor 502, memory 504, transceiver 506, or various combinations thereof, or components thereof, may be implemented in hardware (e.g., as a communication management circuitry system). This hardware may include a processor, digital signal processor (DSP), application-specific integrated circuit (ASIC), field-programmable gate array (FPGA), or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof, configured to or otherwise support components for performing the functions described herein. In some implementations, processor 502 and memory 504 coupled to processor 502 may be configured to perform one or more of the functions described herein (e.g., execution by processor 502 of instructions stored in memory 504).

[0115] For example, processor 502 may support wireless communication at device 500 according to examples disclosed herein. Processor 502 may be configured to support components for: determining whether at least one of a first trigger condition related to the state of the UE or a second trigger condition related to an LP-WUS configuration configured for the UE is satisfied; and based on determining that at least one of the first trigger condition or the second trigger condition is satisfied, performing at least one of the following: (i) relaxed RRM measurement for at least one serving cell on the MR, or (ii) RRM measurement offloading from the MR to the LP-WUS.

[0116] Processor 502 may include intelligent hardware devices (e.g., general-purpose processors, DSPs, CPUs, microcontrollers, ASICs, FPGAs, programmable logic devices, discrete gate or transistor logic components, discrete hardware components, or any combination thereof). In some implementations, processor 502 may be configured to use a memory controller to operate a memory array. In some other implementations, the memory controller may be integrated into processor 502. Processor 502 may be configured to execute computer-readable instructions stored in memory (e.g., memory 504) to cause device 500 to perform various functions of this disclosure.

[0117] Memory 504 may include random access memory (RAM) and read-only memory (ROM). Memory 504 may store computer-readable, computer-executable code, including instructions that, when executed by processor 502, cause device 500 to perform the various functions described herein. This code may be stored in a non-transitory computer-readable medium, such as system memory or another type of memory. In some implementations, this code may not be directly executable by processor 502, but may cause a computer (e.g., after compilation and execution) to perform the functions described herein. In some implementations, memory 504 may include a basic I / O system (BIOS) that controls basic hardware or software operations, such as interaction with peripheral components or devices.

[0118] I / O controller 508 manages input and output signals for device 500. I / O controller 508 can also manage peripherals not integrated into device M02. In some implementations, I / O controller 508 may represent a physical connection or port to an external peripheral. In some implementations, I / O controller 508 may utilize an operating system such as iOS®, Android®, MS-WINDOWS®, OS / 2®, UNIX®, LINUX®, or other known operating systems. In some implementations, I / O controller 508 may be implemented as part of a processor (e.g., processor 506). In some implementations, a user can interact with device 500 via I / O controller 508 or via hardware components controlled by I / O controller 508.

[0119] In some implementations, device 500 may include a single antenna 510. However, in other implementations, device 500 may have more than one antenna 510 (i.e., multiple antennas), including multiple antenna panels or antenna arrays, which may be capable of simultaneously transmitting or receiving multiple wireless transmissions. Transceiver 506 may communicate bidirectionally via one or more antennas 510, wired or wireless links, as described herein. For example, transceiver 506 may represent a wireless transceiver and be capable of bidirectional communication with another wireless transceiver. Transceiver 506 may also include a modem for modulating data packets, providing modulated data packets to one or more antennas 510 for transmission, and demodulating data packets received from one or more antennas 510. Transceiver 506 may include one or more transmit chains, one or more receive chains, or combinations thereof.

[0120] The transmission chain can be configured to generate and transmit signals (e.g., control information, data, packets). The transmission chain may include at least one modulator for modulating data onto a carrier signal, preparing it for transmission over a wireless medium. At least one modulator may be configured to support one or more techniques, such as amplitude modulation (AM), frequency modulation (FM), or digital modulation schemes (e.g., phase shift keying (PSK) or quadrature amplitude modulation (QAM)). The transmission chain may also include at least one power amplifier configured to amplify the modulated signal to an appropriate power level suitable for transmission over a wireless medium. The transmission chain may also include one or more antennas 510 for transmitting the amplified signal over the air or within the wireless medium.

[0121] The receiver chain can be configured to receive signals (e.g., control information, data, packets) via a wireless medium. For example, the receiver chain may include one or more antennas 510 for receiving signals over the air or via a wireless medium. The receiver chain may include at least one amplifier (e.g., a low-noise amplifier (LNA)) configured to amplify the received signal. The receiver chain may include at least one demodulator configured to demodulate the received signal and obtain the transmitted data by reversing the modulation technique applied during signal transmission. The receiver chain may include at least one decoder for decoding and processing the demodulated signal to receive the transmitted data.

[0122] Figure 6 An example of an enhanced RRM processor 600 according to aspects of this disclosure is shown. Processor 600 may be an example of a processor configured to perform various operations as described herein. Processor 600 may include a controller 602 configured to perform various operations as described herein. Processor 600 may optionally include at least one memory 604, such as an L1 / L2 / L3 cache. Additionally or alternatively, processor 600 may optionally include one or more arithmetic logic units (ALUs) 606. One or more of these components may be electronically communicated or otherwise coupled (e.g., operatively, communicatively, functionally, electronically, electrically) via one or more interfaces (e.g., buses).

[0123] Processor 600 may be a processor chipset and includes a protocol stack (e.g., a software stack) executed by the processor chipset to perform various operations (e.g., receive, acquire, send, output, forward, store, determine, identify, access, write, read) according to examples as described herein. The processor chipset may include one or more cores, one or more caches (e.g., memory located locally in the processor chipset (e.g., processor 600) or included in the processor chipset, or other memory (e.g., random access memory (RAM), read-only memory (ROM), dynamic RAM (DRAM), synchronous dynamic RAM (SDRAM), static RAM (SRAM), ferroelectric RAM (FeRAM), magnetic RAM (MRAM), resistive RAM (RRAM), flash memory, phase-change memory (PCM), etc.).

[0124] Controller 602 can be configured to manage and coordinate various operations of processor 600 (e.g., sending, receiving, acquiring, obtaining, transmitting, outputting, forwarding, storing, determining, identifying, accessing, writing, and reading) to enable processor 600 to support various operations according to the examples described herein. For example, controller 602 can operate as a control unit of processor 600, generating control signals that manage the operation of various components of processor 600. These control signals include enabling or disabling functional units, selecting data paths, initiating memory access, and coordinating the timing of operations.

[0125] Controller 602 may be configured to fetch (e.g., obtain, acquire, receive) instructions from memory 604 and determine subsequent instructions(s) to be executed to enable processor 600 to support various operations according to the examples described herein. Controller 602 may be configured to track memory addresses of instructions associated with memory 604. Controller 602 may be configured to decode instructions to determine the operations to be performed and the operands involved. For example, controller 602 may be configured to interpret instructions and determine control signals to be output to other components of processor 600 to enable processor 600 to support various operations according to the examples described herein. Additionally or alternatively, controller 602 may be configured to manage data flow within processor 600. Controller 602 may be configured to control data transfers between registers, arithmetic logic unit (ALU), and other functional units of processor 600.

[0126] Memory 604 may include one or more caches, such as memory or other memory located locally in or included in processor 600, such as RAM, ROM, DRAM, SDRAM, SRAM, MRAM, flash memory, etc. In some implementations, memory 604 may reside within or on the processor chipset (e.g., locally in processor 600). In some other implementations, memory 604 may reside outside the processor chipset (e.g., remotely from processor 600).

[0127] Memory 604 may store computer-readable, computer-executable code, including instructions that, when executed by processor 600, cause processor 600 to perform the various functions described herein. The code may be stored in a non-transitory computer-readable medium, such as system memory or another type of memory. Controller 602 and / or processor 600 may be configured to execute the computer-readable instructions stored in memory 604 to cause processor 600 to perform various functions. For example, processor 600 and / or controller 602 may be coupled to or coupled to memory 604, and processor 600, controller 602, and memory 604 may be configured to perform the various functions described herein. In some examples, processor 600 may include multiple processors, and memory 604 may include multiple memories. One or more of the multiple processors may be coupled to one or more of the multiple memories, which may be configured individually or collectively to perform the various functions described herein.

[0128] One or more ALU 606s can be configured to support various operations according to the examples described herein. In some implementations, one or more ALU 606s may reside within or on a processor chipset (e.g., processor 600). In some other implementations, one or more ALU 606s may reside outside the processor chipset (e.g., processor 600). One or more ALU 606s can perform one or more computations on data, such as addition, subtraction, multiplication, and division. For example, one or more ALU 606s can receive input operands and opcodes that determine the operation to be performed. One or more ALU 606s can be configured with various logic and arithmetic circuitry, including adders, subtractors, shifters, and logic gates, to process and manipulate data according to the operations. Alternatively, one or more ALU 606s may support logical operations such as AND, OR, XOR, NOR, and NAND, enabling one or more ALU 606s to handle conditional operations, comparisons, and bitwise operations.

[0129] Processor 600 may support wireless communication according to the examples disclosed herein. Processor 600 may be configured to support components for: determining whether at least one of a first trigger condition related to the state of the UE or a second trigger condition related to an LP-WUS configuration configured for the UE is satisfied; and based on determining that at least one of the first trigger condition or the second trigger condition is satisfied, performing at least one of the following: (i) relaxed RRM measurement for at least one serving cell on the MR, or (ii) RRM measurement offloading from the MR to the LP-WUS.

[0130] Figure 7 A flowchart of a method 700 for enhancing RRM according to various aspects of this disclosure is shown. Operation of method 700 can be implemented by the device or its components described herein. For example, operation of method 700 can be performed by UE 104 described herein. In some implementations, the device can execute a set of instructions to control functional elements of the device to perform the function. Alternatively or additionally, the device can use purpose-specific hardware to perform aspects of the function.

[0131] At 710, the method may include determining whether at least one of a first triggering condition related to the state of the UE or a second triggering condition related to LP-WUS configured for the UE is satisfied. The operation of 710 may be performed according to examples as described herein. In some implementations, aspects of the operation of 710 may be performed by a device, as referred to [reference needed]. Figure 1 As stated above.

[0132] At 720, the method may include: based on determining that at least one of the first triggering condition or the second triggering condition is satisfied, performing at least one of the following: (i) a relaxed RRM measurement for at least one serving cell on the MR, or (ii) an RRM measurement offload from the MR to the LP-WUR. Operation of 720 may be performed according to examples as described herein. In some implementations, aspects of operation of 720 may be performed by a device, as referred to [reference needed]. Figure 1 As stated above.

[0133] It should be noted that, referring to Figures 1 to 4 The implementation of this disclosure is also applicable to device 500, processor 600, and method 700.

[0134] It should be noted that the methods described in this paper describe one possible implementation, the operations and steps of which can be rearranged or otherwise modified, and other implementations may also exist. Furthermore, aspects of two or more methods can be combined.

[0135] The various exemplary frames and components disclosed herein can be implemented or performed using a general-purpose processor, DSP, ASIC, CPU, FPGA or other programmable logic device, discrete gate or transistor logic, discrete hardware component, or any combination thereof designed to perform the functions described herein. The general-purpose processor may be a microprocessor, but alternatively, it may be any processor, controller, microcontroller, or state machine. The processor may also be implemented as a combination of computing devices (e.g., a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors combined with a DSP core, or any other such configuration).

[0136] The functions described herein can be implemented by hardware, software executed by a processor, firmware, or any combination thereof. If implemented by software executed by a processor, the function can be stored on or transmitted through a computer-readable medium as one or more instructions or code. Other examples and implementations are within the scope of this disclosure and the appended claims. For example, due to the nature of software, the functions described herein can be implemented using software executed by a processor, hardware, firmware, hardwired, or any combination thereof. Features implementing the function can also be physically located in various locations, including being distributed such that portions of the function are implemented in different physical locations.

[0137] Computer-readable media include both non-volatile computer storage media and communication media, wherein communication media includes any medium that facilitates the transfer of a computer program from one place to another. Non-volatile storage media can be any available medium accessible by a general-purpose computer or a special-purpose computer. For example, non-volatile computer-readable media can include RAM, ROM, electrically erasable programmable read-only memory (EEPROM), flash memory, optical disc (CD) ROM or other optical disc storage media, magnetic disk storage media or other magnetic storage devices, or any other non-volatile medium that can be used to carry or store required program code components in the form of instructions or data structures, and can be accessed by a general-purpose or special-purpose computer, or a general-purpose or special-purpose processor.

[0138] As used herein, including in the claims, the article “a” preceding an element is not limited and should be understood to mean “at least one” or “one or more” of those elements. The terms “a,” “at least one,” “one or more,” and “at least one of one or more” are interchangeable. As used herein, including in the claims, “or” as used in a list of items (e.g., a list of items beginning with phrases such as “at least one of the following,” “one or more of the following,” or “one or two of the following”) indicates an inclusive list, for example, a list of at least one of A, B, or C means A or B or C or AB or AC or BC or ABC (i.e., A and B and C). Additionally, as used herein, the phrase “based on” should not be understood to refer to a closed set of conditions. For example, an example step described as “based on condition A” could be based on both condition A and condition B without departing from the scope of this disclosure. In other words, as used herein, the phrase “based on” should be constructed in the same manner as the phrase “at least partially based on.” Furthermore, as used herein, including in the claims, “set” can include one or more elements.

[0139] The description herein is provided to enable those skilled in the art to make or use this disclosure. Various modifications to this disclosure will be apparent to those skilled in the art, and the general principles defined herein can be applied to other variations without departing from the scope of this disclosure. Therefore, this disclosure is not limited to the examples and designs described herein, but should be given the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A user equipment (UE), comprising: At least one memory; as well as At least one processor, coupled to the at least one memory, and configured to cause the UE to: Determine whether at least one of the following is satisfied: a first trigger condition related to the state of the UE or a second trigger condition related to a low-power wake-up signal LP-WUS configured for the UE; and Based on the determination that at least one of the first trigger condition or the second trigger condition is met, perform at least one of the following: (i) relaxed radio resource management (RRM) measurement for at least one serving cell on the main radio (MR), or (ii) RRM measurement offloading from the MR to the low-power wake-up receiver (LP-WUR).

2. The UE according to claim 1, wherein the first triggering condition includes one of the following: When the UE is in a state of low mobility or stationary, during the time window, the difference between the cell selection received level value Srxlev for the serving cell and the Srxlev reference value for the serving cell is less than a first threshold. When the UE is in a state of low mobility or stationary, during the time window, the difference between the cell selection quality value Squal for the serving cell and the Squal reference value for the serving cell is less than a second threshold. If the UE is not at the edge of the serving cell, during the time window, Srxlev is greater than the first threshold; If the UE is not at the edge of the serving cell, during the time window, the Squal for the serving cell is greater than the second threshold; or Any combination thereof.

3. The UE according to claim 1 or 2, wherein the second triggering condition includes at least one of the following: During the time window, the UE is within the coverage area of ​​the LP-WUS; or During the time window, the reference signal measurement obtained by the LP-WUR reaches the third threshold.

4. The UE of claim 3, wherein the UE is configured to perform at least one of the relaxed RRM measurement or the RRM measurement offloading by: When the UE is within the coverage area of ​​the LP-WUS, the relaxed RRM measurement for the serving cell and neighboring cells is performed on the MR.

5. The UE of claim 3, wherein the UE is configured to perform at least one of the relaxed RRM measurement or the RRM measurement offload by: When the UE is within the coverage area of ​​the LP-WUS, the RRM measurement offloading from the MR to the LP-WUR, at least for the serving cell, is performed.

6. The UE of claim 3, wherein the UE is configured to perform at least one of the relaxed RRM measurement or the RRM measurement offloading by: When the UE is within the coverage area of ​​the LP-WUS, a portion of the RRM measurement is relaxed on the MR for at least one of the neighboring cells or the serving cell; and Another portion of the RRM measurement is unloaded into the LP-WUR.

7. The UE according to any one of claims 4 to 6, wherein at least one of the relaxed RRM measurement or the RRM measurement offloading is performed on the MR when the first triggering condition is met.

8. The UE of claim 3, wherein the UE is configured to perform at least one of the relaxed RRM measurement or the RRM measurement offload by: If the reference signal measurement obtained by the LP-WUR reaches the third threshold, the RRM measurement offloading is performed only for the serving cell.

9. The UE of claim 3, wherein the UE is configured to perform at least one of the relaxed RRM measurement or the RRM measurement offloading by: If the reference signal measurement obtained by the LP-WUR reaches the third threshold, the RRM measurement offloading is performed for both the serving cell and the neighboring cell.

10. The UE of claim 3, wherein the UE is configured to perform at least one of the relaxed RRM measurement or the RRM measurement offloading by: If the neighboring cell measurement relaxation condition and the second triggering condition on the MR are met, the RRM measurement offloading is performed for the neighboring cell.

11. The UE of claim 2, wherein the UE is configured to perform at least one of the relaxed RRM measurement or the RRM measurement offloading by: If the first triggering condition is met, the relaxed RRM measurement is performed for the serving cell.

12. The UE of claim 3, wherein the UE is configured to perform at least one of the relaxed RRM measurement or the RRM measurement offload by: If the first triggering condition and the second triggering condition are met, the RRM measurement offload is performed for the serving cell.

13. The UE of claim 1, wherein the UE is further configured such that: Based on the third trigger condition, the relaxed RRM measurement is stopped or the RRM measurement is unloaded.

14. The UE of claim 13, wherein the third triggering condition includes at least one of the following: The UE is moved out of the coverage area of ​​the LP-WUS; The target reference signal measured by the LP-WUR from the serving cell satisfies the fourth threshold during the time window; The UE stops operations related to the LP-WUR; The LP-WUR detects a wake-up signal for the MR; The UE will perform uplink data transmission; For the relaxed RRM measurement or the RRM measurement offloading, the low mobility or stationary condition of the UE is not met; or The condition that the UE is not at the cell edge is not met for the relaxed RRM measurement or the RRM measurement offloading.

15. The UE of claim 1, wherein the UE is further configured such that: The relaxed RRM measurement is stopped when the first time period expires, during which the relaxed RRM measurement for the serving cell is performed on the MR.

16. The UE of claim 1, wherein the UE is further configured to: The RRM measurement offloading is stopped when the second time period expires. During the second time period, the RRM measurement offloading to the LP-WUR is performed for the serving cell, or for both the serving cell and neighboring cells.

17. The UE of claim 6, wherein the UE is configured to relax a portion of the RRM measurement on the MR and unload another portion of the RRM measurement onto the LP-WUR by: In the case of continuous monitoring, during the time period during which the relaxed RRM measurement is performed on the MR, the unloaded RRM measurement is performed on the LP-WUR.

18. The UE of claim 6, wherein the UE is configured to relax a portion of the RRM measurement on the MR and unload another portion of the RRM measurement onto the LP-WUR by: In the case of duty cycle monitoring, while the unloaded RRM measurement is performed on the LP-WUR during the LP-WUR monitoring cycle, a portion of the RRM measurement is relaxed on the MR during the LP-WUR monitoring cycle.

19. A processor for wireless communication, comprising: At least one memory; as well as At least one controller, coupled to the at least one memory, and configured to cause the controller to: Determine whether at least one of the following is satisfied: a first trigger condition related to the state of the UE or a second trigger condition related to the low-power wake-up signal LP-WUS configured for the UE; and Based on the determination that at least one of the first trigger condition or the second trigger condition is met, perform at least one of the following: (i) relaxed radio resource management (RRM) measurement for at least one serving cell on the main radio (MR), or (ii) RRM measurement offloading from the MR to the low-power wake-up receiver (LP-WUR).

20. A method performed by a user equipment, the method comprising: Determine whether at least one of the following is satisfied: a first trigger condition related to the state of the UE or a second trigger condition related to a low-power wake-up signal LP-WUS configured for the UE; and Based on the determination that at least one of the first trigger condition or the second trigger condition is met, perform at least one of the following: (i) relaxed radio resource management (RRM) measurement for at least one serving cell on the main radio (MR), or (ii) RRM measurement offloading from the MR to the low-power wake-up receiver (LP-WUR).

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