Apparatus and method for determining measurement period, and computer readable storage medium

Abstract

Example embodiments of the present disclosure relate to an apparatus, a method, and a computer readable storage medium for determination of a measurement period. In a method, a first device receives a first configuration of a first paging time window (PTW) and receives a second configuration of a second PTW. The second PTW starts at a start time point of the first PTW and is longer than the first PTW. The first device performs a measurement on a signal from the second device during a measurement period. The measurement period begins at a starting point in time and has a length that varies within a range from a first length of the first PTW to a second length of the second PTW.

Description

Technical Field

[0001] Various example embodiments of the present disclosure relate generally to the field of telecommunications, and in particular to apparatus, methods, and computer-readable storage media for determining a measurement period. Background Art

[0002] The Enhanced Reduced Capability (RedCap) work item in 3rd Generation Partnership Project (3GPP) Release 18 (Rel-18) is intended for enhancements for RedCap New Radio (NR) devices. One of the enhancements is operation in enhanced extended discontinuous reception (eDRX) during the Radio Resource Control (RRC) inactive (RRC_INACTIVE) state. The enhanced eDRX has an eDRX cycle length, for example, greater than 10.24 seconds (sec), using a paging time window (PTW). This type of operation was specified only for the RRC IDLE (RRC_IDLE) state in Release 17 (Rel-17), compared to the RRC_INACTIVE state. An enhanced RedCap (eRedCap) user equipment (UE) can receive idle (IDLE) and inactive (INACTIVE) eDRX configurations in Rel-18. It is studied when the UE performs cell measurements when the UE is configured with IDLE and INACTIVE eDRX configurations for cell measurements. Summary of the invention

[0003] In a first aspect of the present disclosure, a first device is provided. The first device includes at least one processor; and at least one memory storing instructions, which, when executed by the at least one processor, causes the first device to at least: receive a first configuration of a first paging time window; receive a second configuration of a second paging time window, the second paging time window starting at a starting time point of the first paging time window and being longer than the first paging time window; and perform measurement on a signal from the second device within a measurement period, the measurement period starting at the starting time point and having a length ranging from a first length of the first paging time window to a second length of the second paging time window.

[0004] In a second aspect of the present disclosure, a second device is provided. The second device includes at least one processor; and at least one memory storing instructions, which, when executed by the at least one processor, causes the second device to at least: transmit a first configuration of a first paging time window to a first device; transmit a second configuration of a second paging time window to the first device, the second paging time window starting at a starting time point of the first paging time window and being longer than the first paging time window; and transmit a signal to the first device within a measurement period, the measurement period starting at the starting time point and having a length ranging from a first length of the first paging time window to a second length of the second paging time window.

[0005] In a third aspect of the present disclosure, a method is provided. The method includes: receiving a first configuration of a first paging time window; receiving a second configuration of a second paging time window, the second paging time window starting at a starting time point of the first paging time window and being longer than the first paging time window; and performing measurement on a signal from a second device within a measurement period, the measurement period starting at the starting time point and having a length ranging from a first length of the first paging time window to a second length of the second paging time window.

[0006] In a fourth aspect of the present disclosure, a method is provided. The method includes: transmitting a first configuration of a first paging time window to a first device; transmitting a second configuration of a second paging time window to the first device, the second paging time window starting at a starting time point of the first paging time window and being longer than the first paging time window; and transmitting a signal to the first device within a measurement period, the measurement period starting at the starting time point and having a length ranging from a first length of the first paging time window to a second length of the second paging time window.

[0007] In a fifth aspect of the present disclosure, a first device is provided. The first device includes: a component for receiving a first configuration of a first paging time window; a component for receiving a second configuration of a second paging time window, the second paging time window starting at a starting time point of the first paging time window and being longer than the first paging time window; and a component for performing measurement on a signal from the second device within a measurement period, the measurement period starting at the starting time point and having a length ranging from a first length of the first paging time window to a second length of the second paging time window.

[0008] In a sixth aspect of the present disclosure, a second device is provided. The second device includes: a component for transmitting a first configuration of a first paging time window to a first device; a component for transmitting a second configuration of a second paging time window to the first device, the second paging time window starting at a starting time point of the first paging time window and being longer than the first paging time window; and a component for transmitting a signal to the first device within a measurement period, the measurement period starting at the starting time point and having a length ranging from a first length of the first paging time window to a second length of the second paging time window.

[0009] In a seventh aspect of the present disclosure, a computer-readable medium is provided, wherein the computer-readable medium includes instructions stored thereon, and the instructions are used to cause a device to at least execute the method according to the third aspect.

[0010] In an eighth aspect of the present disclosure, a computer-readable medium is provided, wherein the computer-readable medium includes instructions stored thereon, and the instructions are used to cause a device to at least execute the method according to the fourth aspect.

[0011] It should be understood that the invention summary is not intended to identify the key features or essential features of the embodiments of the present disclosure, nor is it intended to limit the scope of the present disclosure. Other features of the present invention will become readily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Some example embodiments will now be described with reference to the accompanying drawings, in which:

[0013] Figure 1 An example communication environment is shown in which example embodiments of the present disclosure may be implemented;

[0014] Figure 2A and Figure 2B shows example settings of measurement periods according to some example embodiments of the present disclosure;

[0015] Figure 3 A signaling diagram illustrating an example communication process in a communication environment according to some example embodiments of the present disclosure;

[0016] Figure 4 A signaling flow diagram illustrating an example process 400 of adjusting a measurement period according to some example embodiments of the present disclosure;

[0017] Figure 5 shows an example eDRX and DRX configuration in the case where two PTWs partially overlap;

[0018] Figure 6 A flowchart showing a method of adjusting a measurement period at a first device according to some example embodiments of the present disclosure is shown;

[0019] Figure 7 A flowchart illustrating a method of adjusting a measurement period at a second device according to some example embodiments of the present disclosure;

[0020] Figure 8 shows a simplified block diagram of a device suitable for implementing an example embodiment of the present disclosure; and

[0021] Fig. 9 A block diagram of an example computer-readable medium is shown according to some example embodiments of the present disclosure.

[0022] Throughout the drawings, the same or similar reference numerals refer to the same or similar elements. DETAILED DESCRIPTION

[0023] The principle of the present invention will now be described with reference to some exemplary embodiments. It should be understood that these embodiments are described only for the purpose of illustration, and help those skilled in the art to understand and implement the present disclosure, without implying any limitation to the scope of the present disclosure. In addition to the embodiments described below, the embodiments described herein can be implemented in various ways.

[0024] In the following description and claims, unless defined otherwise, 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 belongs.

[0025] References in this disclosure to "one embodiment," "an embodiment," "an example embodiment," etc., indicate that the described embodiment may include a particular feature, structure, or characteristic, but not every embodiment necessarily includes the particular feature, structure, or characteristic. Moreover, such phrases do not necessarily refer to the same embodiment. Further, when a particular feature, structure, or characteristic is described in conjunction with an embodiment, it is within the knowledge of those skilled in the art to affect such feature, structure, or characteristic in other embodiments, whether or not explicitly described.

[0026] 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 only used to distinguish one element from another element. For example, without departing from the scope of the exemplary embodiment, the first element may be referred to as the second element, and similarly, the second element may be referred to as the first element. As used herein, the term "and / or" includes any and all combinations of one or more of the listed terms.

[0027] As used herein, “at least one of: ,” “at least one of ,” and similar descriptions, a list of two or more elements connected by “and” or “or,” means at least any one element, or at least any two or more elements, or at least all the elements.

[0028] As used herein, unless explicitly stated, performing a step “in response to A” does not mean performing the step immediately after “A” occurs, and may include one or more intermediate steps.

[0029] The terms used herein are used only for the purpose of describing specific embodiments and are not intended to limit the example embodiments. As used herein, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that when used herein, the terms "comprise", "comprising", "having", "having", "includes", and / or "including", when used herein, specify the presence of the described features, elements, and / or components, etc., but do not exclude the presence or addition of one or more other features, elements, components, and / or combinations thereof.

[0030] As used in this application, the term "circuitry" may refer to one or more or all of the following: (a) hardware circuit implementations only (e.g., implemented only in analog and / or digital circuitry), and (b) a combination of hardware circuitry and software, such as (as applicable): (i) a combination of analog and / or digital hardware circuitry and software / firmware, and (ii) any portion of a hardware processor and software (including a digital signal processor), software and memory that work together to enable a device (such as a mobile phone or server) to perform various functions; and (c) Hardware circuits and / or processors, such as a microprocessor or portion of a microprocessor, that require software (eg, firmware) to operate, but which may not be present when not required for operation.

[0031] This definition of circuitry applies to all uses of this term in this application, including in any claims. As a further example, as used in this application, the term circuitry also covers an implementation of only a hardware circuit or a processor (or multiple processors) or a portion of a hardware circuit or a processor and its (or its) accompanying software and / or firmware. For example and if applicable to the particular claim element, the term circuitry also covers a baseband integrated circuit or processor integrated circuit for a mobile device or a similar integrated circuit in a server, cellular network device, or other computing or network device.

[0032] As used herein, the term "communication network" refers to a network that complies with any suitable communication standard, such as New Radio (NR), Long Term Evolution (LTE), Advanced LTE (LTE-A), Wideband Code Division Multiple Access (WCDMA), High Speed ​​Packet Access (HSPA), Narrowband Internet of Things (NB-IoT), etc. In addition, the communication between the terminal device and the network device in the communication network can be performed according to any suitable generation communication protocol, including but not limited to the first generation (1G), second generation (2G), 2.5G, 2.75G, third generation (3G), fourth generation (4G), 4.5G, fifth generation (5G), sixth generation (6G) communication protocol and / or any other protocol currently known or developed in the future. The embodiments of the present disclosure can be applied to various communication systems. In view of the rapid development of communication, there are of course future types of communication technologies and systems that can implement the present disclosure. It should not be considered that the scope of the present disclosure is limited to the above-mentioned system.

[0033] As used herein, the term "network device" refers to a node in a communication network via which a terminal device accesses a network and receives services from it. A network device may refer to a base station (BS) or an access point (AP), such as a Node B (NodeB or NB), an evolved Node B (eNodeB or eNB), an NRNB (also referred to as a gNB), a remote radio unit (RRU), a radio head (RH), a remote radio head (RRH), a repeater, an integrated access and backhaul (IAB) node, a low power node (such as a femto), a piconet, a non-terrestrial network (NTN) or non-terrestrial network equipment, such as satellite network equipment, a low earth orbit (LEO) satellite and a geosynchronous orbit (GEO) satellite, an aircraft network equipment, etc., depending on the terminology and technology applied. In some example embodiments, a radio access network (RAN) split architecture includes a centralized unit (CU) and a distributed unit (DU) at an IAB donor node. A hardware circuit and / or processor, such as a microprocessor or a portion of a microprocessor, which requires software (e.g., firmware) to operate, but the software may not exist when it is not needed for operation.

[0034] The term "terminal device" refers to any terminal device capable of wireless communication. As an example and not limitation, the terminal device may also be referred to as a communication device, a user equipment (UE), a subscriber station (SS), a portable subscriber station, a mobile station (MS) or an access terminal (AT). The terminal device may include, but is not limited to, a mobile phone, a cellular phone, a smart phone, a voice over IP (VoIP) phone, a wireless local loop phone, a tablet computer, a wearable terminal device, a personal digital assistant (PDA), a portable computer, a desktop computer, an image capture terminal device such as a digital camera, a game terminal device, a music storage and playback device, a vehicle-mounted wireless terminal device, a wireless endpoint, a mobile station, a laptop embedded device (LEE), a laptop mounted device (LME), a USB dongle, a smart device, a wireless customer premises equipment (CPE), an Internet of Things (IoT) device, a watch or other wearable, a head mounted display (HMD), a vehicle, a drone, a medical device and an application (e.g., remote surgery), an industrial device and an application (e.g., a robot and / or other wireless devices operating in an industrial and / or automatic processing chain environment), a consumer electronic device, a device operating on a commercial and / or industrial wireless network, etc. The terminal device may also correspond to the mobile terminal (MT) part of an IAB node (eg, a relay node).In the following description, the terms "terminal device", "communication device", "terminal", "user equipment" and "UE" may be used interchangeably.

[0035] As used herein, the terms "resource", "transmission resource", "resource block", "physical resource block" (PRB), "uplink resource" or "downlink resource" may refer to any resource used to perform communication (e.g., communication between a terminal device and a network device), such as a resource in the time domain, a resource in the frequency domain, a resource in the spatial domain, a resource in the code domain, or any other combination of time, frequency, space and / or code domain resources to achieve communication. In the following, unless explicitly stated, resources in the frequency domain and the time domain will be used as examples of transmission resources for describing some example embodiments of the present disclosure. It should be noted that the example embodiments of the present disclosure are equally applicable to other resources in other domains.

[0036] As mentioned above, in Rel-18, eRedCap UE can receive IDLE eDRX and INACTIVE eDRX configurations. The PTW configured by the core network (CN) (also known as CN PTW) can be configured as an IDLE eDRX configuration, and the PTW configured by the radio resource network (RAN) (also known as RAN PTW) can be configured as an INACTIVE eDRX configuration. The range of enhanced eDRX cycles in the RRC_INACTIVE state (also known as enhanced INACTIVE DRX cycles) has been defined. It is agreed that the length of the PTW for enhanced INACTIVE eDRX (also known as PTW length) has the same range as that of IDLE eDRX, i.e., from 1.28 seconds to 40.96 seconds, varying in steps of 1.28 seconds. The range of long eDRX cycle lengths with enhanced INACTIVE eDRX is the same as that of IDLE eDRX, which is 20.48 seconds to 10485.76 seconds. Furthermore, various Radio Resource Management (RRM) core requirements for the RRC_INACTIVE state are defined with respect to a measurement period.

[0037] It is studied when measurements are performed when the UE is configured with IDLE eDRX and INACTIVE eDRX configurations for cell measurements. In the requirement for eDRX cycle greater than 10.24 seconds in frequency range 1 (FR1) and frequency range 2 (FR2), the RAN PTW and CN PTW fully or partially overlap within overlapping paging superframes (PH). It is agreed that the RAN PTW and CN PTW in the overlapping PH need to be started at the same time. The two PTWs may be configured with different lengths and therefore the two PTWs may not completely overlap. There may be an additional RAN PTW that does not overlap with the CN PTW because the INACTIVE eDRX cycle length may be smaller than the IDLE eDRX cycle length.

[0038] As described above, if both the RAN PTW and the CN PTW are located within the PH, the starting points of the RAN PTW and the CN PTW in the overlapping PH are agreed to be the same. Then, if the two PTWs are configured with different lengths, the two PTWs are partially overlapping. In this case, it is necessary to determine how the UE performs serving cell and neighbor cell measurements for cell reselection.

[0039] An exemplary embodiment of the present disclosure proposes a scheme for determining a measurement period. With this scheme, if two partially overlapping PTWs are configured for a device, the measurement period used by the device to measure a signal from another device starts at the start time point of the two PTWs and has a length ranging from the shorter PTW length to the longer PTW length of the two PTWs. This setting of the measurement period is more flexible and can achieve power saving in a more effective and efficient manner.

[0040] In some exemplary embodiments, the two PTWs in the overlapping PH may be a RAN PTW and a CN PTW. The RAN PTW and the CN PTW may start at the same time with different lengths, and thus the overlap of the two PTWs is partial. The proposed scheme may define how the device determines a measurement period to perform signal measurement if the configured RAN and CN PTWs partially overlap. The scheme allows the measurement period to vary in a range from a shorter one of the RAN PTW and the CN PTW to a longer one of the RAN PTW and the CN PTW, which is more flexible and efficient.

[0041] Figure 1 An example communication environment 100 is shown in which example embodiments of the present disclosure may be implemented. As part of a communication network, in the communication environment 100, a first device 110 may communicate through a cell 122 provided by a second device 120. The cell 122 may be a serving cell or a neighboring cell of the first device 110. In some example embodiments, the first device 110 may operate as a terminal device, and the second device 120 may operate as a network device serving the terminal device in the cell 122.

[0042] In the following, for the purpose of explanation, some example embodiments are described as the first device 110 operating as a terminal device and the second device 120 operating as a network device. However, in some example embodiments, the operations described with respect to the terminal device may be implemented at a network device or other device, and the operations described with respect to the network device may be implemented at a terminal device or other device.

[0043] In some example embodiments, if the first device 110 is a terminal device and the second device 120 is a network device, the link from the second device 120 to the first device 110 is referred to as a downlink (DL), and the link from the first device 110 to the second device 120 is referred to as an uplink (UL). In the DL, the second device 120 is a transmission (TX) device (or transmitter), and the first device 110 is a reception (RX) device (or receiver). In the UL, the first device 110 is a TX device (or transmitter), and the second device 120 is an RX device (or receiver). If both the first device 110 and the second device 120 are terminal devices, the link between the two terminal devices is referred to as a side link (SL). In the SL, one of the first device 110 and the second device 120 is a TX device (or transmitter), and the other of the first device 110 and the second device 120 is an RX device (or receiver).

[0044] The communication in the communication environment 100 may be implemented according to any suitable communication protocol, including but not limited to cellular communication protocols of the first generation (1G), second generation (2G), third generation (3G), fourth generation (4G), fifth generation (5G), sixth generation (6G), etc., wireless local area network communication protocols such as Institute of Electrical and Electronics Engineers (IEEE) 802.11, etc., and / or any other protocol currently known or developed in the future. In addition, the communication may use any suitable wireless communication technology, including but not limited to: code division multiple access (CDMA), frequency division multiple access (FDMA), time division multiple access (TDMA), frequency division duplex (FDD), time division duplex (TDD), multiple input multiple output (MIMO), orthogonal frequency division multiple access (OFDM), discrete Fourier transform spread OFDM (DFT-s-OFDM) and / or any other technology currently known or developed in the future.

[0045] It is important to understand that in Figure 1 The number of devices is shown for illustration purposes only and does not imply any limitation. The communication environment 100 may include any number of devices configured to implement the example embodiments of the present disclosure. It should also be understood that Figure 1 The number of cells shown is illustrative only and not limiting. The second device 120 or other equipment may provide more than one cell to serve the first device 110.

[0046] In the communication environment 100, the first device 110 is configured with two partially overlapping PTWs. The two PTWs start at the same starting time point and have different lengths. In some example embodiments, the two PTWs are a PTW configured by the RAN (or RAN PTW) and a PTW configured by the CN (or CN PTW), respectively. In this configuration, the first device 110 needs to determine a measurement period for measuring a signal from the second device 120. In some example embodiments, the measurement may include measurement of a cell 122 for cell reselection. According to an example embodiment of the present disclosure, the measurement period varies in a range from a configured shorter PTW to a configured longer PTW.

[0047] The following will refer to Figure 2A and Figure 2B An example setting of a measurement period is described. In this example, RAN PTW and CN PTW are example implementations of two PTWs. Figure 2A In the illustrated configuration 200, a large portion of the two PTWs (e.g., more than 50% of the PTWs) overlap. Figure 2B In the illustrated configuration 210, a small portion (e.g., less than 50%) of the two PTWs overlap. Either of the RAN PTW and the CN PTW may be longer than the other of the RAN PTW and the CN PTW. The measurement period 220 may range from a RAN PTW (or CN PTW) 230 having a shorter length to a CN PTW (or RAN PTW) 240 having a longer length.

[0048] The measurement period may be a period between a minimum value of RAN PTW and CN PTW and a maximum value of RAN PTW and CN PTW. In this document, the minimum value of RAN PTW and CN PTW may be represented by min(RAN PTW, CN PTW), and the maximum value of RAN PTW and CN PTW may be represented by max(RAN PTW, CN PTW). This setting of the measurement period is more flexible, thereby achieving a compromise between measurement accuracy and power saving.

[0049] The following will refer to Figures 3 to 5 Some example embodiments are discussed.

[0050] Figure 3 A signaling diagram is shown of an exemplary communication process 300 in the communication environment 100 according to some example embodiments of the present disclosure.

[0051] like Figure 3As shown, in process 300, the second device 120 transmits (310) a first configuration of a first PTW, and transmits (320) a second configuration of a second PTW. The second PTW starts at a start time point of the first PTW and is longer than the first PTW. In some example embodiments, the first PTW and the second PTW may be associated with a cell (e.g., cell 122). The cell may include a serving cell or a neighboring cell of the first device 110.

[0052] In some example embodiments, one of the first PTW and the second PTW is a RAN PTW, and the other of the first PTW and the second PTW is a CN PTW. The RAN PTW may be configured for eDRX in an RRC_INACTIVE state. The CN PTW may be configured for eDRX in an RRC_IDLE state. In an example embodiment in which the first device 110 operates as a terminal device and the second device 120 operates as a network device, the configuration of the RAN PTW may be transmitted from the second device 120 to the first device 110, and the configuration of the CN PTW may be transmitted from the CN to the first device 110 via the second device 120.

[0053] Depending on the network implementation, the first configuration of the first PTW and the second configuration of the second PTW may be transmitted simultaneously or in parallel or together by the second device 120. Accordingly, the first device 110 receives 330 the first configuration of the first PTW and receives 340 the second configuration of the second PTW.

[0054] Based on the configuration of the first PTW and the second PTW, the second device 120 transmits (350) a signal to the first device 110 during the measurement period. Accordingly, the first device 110 performs (360) measurement on the signal from the second device 120 during the measurement period. In an example, the signal can be transmitted from the second device 120 to the first device 110 via the cell 122. Thus, based on the signal measurement, the first device 110 can perform cell reselection.

[0055] In various example embodiments, the measurement period starts at the start time points of the first PTW and the second PTW and has a length ranging from a shorter first length of the first PTW to a longer second length of the second PTW. The measurement period may be adjusted according to one or more configured or predefined rules.

[0056] In some example embodiments, first device 110 may adjust the length of the measurement period based on information, which may include at least one of the following: channel quality, the location of first device 110 in the cell, the distance between first device 110 and the center of the cell, the coverage enhancement mode of the first device, or the mobility of first device 110. In an example, based on the information, first device 110 may select one of the first PTW and the second PTW as the measurement period.

[0057] In some exemplary embodiments, the first device 110 may adjust the length of the measurement period based on at least one condition related to the information being satisfied. The at least one condition may involve a comparison of a metric related to the information with a corresponding threshold. Thus, the first device 110 may use this comparison of the metric with the threshold to determine the measurement period.

[0058] In some example embodiments, at least one condition may include a condition that the channel quality is equal to or below a threshold quality. The channel quality may be indicated by a received signal to interference noise ratio (SINR) or a signal to noise ratio (SNR) from a measured reference signal received power (RSRP). Any other measure of channel quality is also possible.

[0059] Based on such conditions, the first device 110 can use the previously measured channel quality to determine the current measurement period. For example, if the channel quality is poor, the measurement accuracy may be degraded. In order to improve the measurement accuracy, if the first device 110 is experiencing poor channel conditions, a longer measurement period can be used. In this case, RSRP level comparison can be used to determine the measurement period. Thus, a compromise between measurement accuracy and power saving can be achieved.

[0060] In some example embodiments, the first device 110 may initially determine the measurement period as a first PTW having a shorter first length. Then, based on the condition being satisfied, the first device 110 may extend the measurement period from the first paging time window to a second paging time window having a larger second length. In some other example embodiments, based on the condition being satisfied, the first device 110 may increase the length of the measurement period by an increment.

[0061] Here, the increment (ie, granularity) of the measurement period is represented by Delta. For example, if Delta = max(RAN PTW, CN PTW) - min(RAN PTW, CN PTW) may be set by default, the measurement period may change from min(RAN PTW, CN PTW) to max(RAN PTW, CN PTW).

[0062] For example, in an example embodiment in which the first PTW and the second PTW are RAN PTW and CN PTW, the first device 110 may initially set the measurement period to min(RAN PTW, CN PTW). The first device 110 may then adjust the measurement period using conditions related to channel quality (e.g., RSRP level). In an example, the network (NW) may transmit information about a threshold to the first device 110 (e.g., via the second device 120). In this case, the first device 110 may use the received threshold information for adjustment. If the threshold information is not received, the first device 110 itself may set the threshold quality. For example, the first device 110 may set the threshold quality to a value of the RSRP level at which the first device 110 can successfully perform measurements within a specific time period (such as the length of the measurement period initially given, e.g., min(RAN PTW, CN PTW)). If the previous channel quality is equal to or greater than the threshold quality, the initial or current measurement period is maintained. Optionally, when a shortened measurement period can be used, the current measurement period may be shortened to a shorter period of time. Otherwise, if the previous channel equation was below the threshold quality, it may not be possible to perform measurements within the shortened measurement period. Therefore, the initial or current measurement period may be extended.

[0063] Alternatively, the granularity Delta may be set by the NW. The value of Delta may be transmitted via a new information element field or by reusing an existing information element in control signaling (such as radio resource control (RRC) signaling). If the first device 110 receives the value of Delta, the first device 110 may use the received value to adjust the measurement period.

[0064] In some exemplary embodiments, the measurement period may be adjusted using the positioning information of the first device 110. In these exemplary embodiments, at least one condition for adjusting the measurement period may be related to the positioning information of the first device 110. In an example, the at least one condition may include a condition that the first device 110 is close to the edge of the cell 122 and / or a condition that the distance between the first device 110 and the center of the cell 122 is equal to or greater than a threshold distance. Alternatively or additionally, the at least one condition may be related to the current coverage enhancement (CE) mode of the first device 110, which may reflect the distance between the first device 110 and the center of the cell 122 or the channel condition of the first device 110 in the cell 122. For example, the at least one condition may include a condition that a specific CE is configured for the first device 110.

[0065] For example, the first device 110 may be located at the center of the cell (also referred to as the cell center) or at the edge of the cell (also referred to as the cell edge). If the first device 110 is close to the edge of the cell 122, or the distance between the first device 110 and the center of the cell 122 is equal to or greater than the threshold distance, or a CE corresponding to a longer distance between the first device 110 and the center of the cell 122 is configured for the first device 110, it is beneficial for the first device 110 to use a longer measurement period to improve measurement accuracy. In an example, the measurement period may be extended to a maximum value of the first PTW and the second PTW.

[0066] The mapping of positioning information and measurement period can be configured by NW. In an example, NW can configure a table to map the relative position of the first device 110 to the measurement period. For example, the mapping table can be designed using the following principles. The first device 110 near the center of the cell adjusts its measurement period to a value close to min(RAN PTW, CN PTW). Otherwise, the first device 110 at the edge of the cell adjusts its measurement period to a value close to max(RAN PTW, CN PTW). As another example, the table can define the mapping of CE modes to different measurement periods. Granularity can also be applied to set different measurement periods between the minimum period and the maximum period. For example, the table may include one or more pairs of positions, distances, or CE modes of the first device 110 and corresponding measurement periods. The mapping of positioning information and measurement periods may also be given as predefined values.

[0067] In some example embodiments, the measurement period may be determined taking into account the mobility of the first device 110. In an example, at least one condition for adjusting the measurement period may include a condition that the mobility of the first device is equal to or greater than a threshold mobility. Here, any variable or parameter indicating the mobility of the first device 110 may be applied. In an example, the speed of the first device 110 may be used as an example measure of the mobility of the first device 110. For example, if the speed of the first device 110 is equal to or greater than a threshold speed, the first device 110 may increase the measurement period to a maximum value. Otherwise, if the speed is lower than the threshold speed, the first device 110 may use a minimum value. Granularity may be applied to set the measurement period to a value between a minimum period and a maximum period.

[0068] It should be understood that the above-mentioned multiple conditions can be used alone or in combination to determine the measurement period. For example, the first device 110 can adjust the measurement period by considering any combination of channel quality, location and mobility.

[0069] In some exemplary embodiments, the increment of the measurement period may be defined by a step size. For example, based on at least one condition being satisfied, the first device 110 may adjust the length of the measurement period in a predefined step size. In an embodiment, in an example embodiment where the first PTW and the second PTW are a RAN PTW and a CN PTW, the measurement period may be determined by range(min(RAN PTW, CNPTW), max(RAN PTW, CN PTW), step size), where the range(start, stop, step) function returns a series of numbers starting at 'start', increasing by 'step', and stopping before a specified number 'stop'. Figure 2B As shown, such step-size-based adjustment can be applied to the case where the overlap is lower than a certain percentage (eg, 50%) to further improve the flexibility of setting the measurement period, wherein the percentage of the overlap portion can be configured by the NW or given as a predetermined value.

[0070] For example, if the first device 110 starts with a relatively small measurement period and identifies that the channel quality is greater than a threshold quality, the initial or current measurement period can be maintained. In this case, a shortened measurement period can be used. Otherwise, the first device 110 can gradually increase the measurement period. The step size can be defined by the first device 110 based on its measurement requirements. Alternatively, the step size can be configured by the NW. This is beneficial for the first device 110 to use a variable length measurement period in stages, which can be more flexible and effective for energy saving of the first device 110.

[0071] In some exemplary embodiments, the first device 110 may receive a configuration related to at least one condition. The configuration may include any configuration information related to at least one condition, such as rules, information and / or conditions for adjusting a measurement period, a threshold setting, a granularity value, an increment or step value, etc.

[0072] In some example embodiments, first device 110 may transmit a report of information for adjusting the measurement period to second device 120. Thus, second device 120 may determine the measurement period based on a predefined rule about the information. Then, second device 120 may transmit a signal for cell measurement or cell reselection to first device 110 within the determined measurement period.

[0073] The following will refer to Figure 4 An example process for adjusting the measurement period is described.

[0074] Figure 4A signaling flow diagram of an example process 400 for adjusting a measurement period according to some example embodiments of the present disclosure is shown. In this example, a UE 402 operates as an example implementation of a first device 110, and a gNB 404 operates as an example implementation of a second device 120. The RAN PTW and the CN PTW are example implementations of a first PTW and a second PTW.

[0075] like Figure 4 As shown, in process 400, UE 402 may maintain (406) information about previous measurements of a channel, location, and / or speed. UE 402 may receive (408) a configuration of a RAN PTW from gNB 404, and receive (410) a configuration of a CN PTW from CN 412 via gNB 404. The configured RAN PTW and CN PTW partially overlap. Optionally, UE 402 may receive (414) a configuration of a threshold from gNB 404. UE 402 may set (416) a condition (e.g., including a threshold) to determine a measurement period. At 418, UE 402 may adjust and set the measurement period by comparing the threshold with previous channel quality, location, and / or speed. If such information, such as quality, location, and / or speed, changes or has not been previously reported, UE 402 may report (420) information about the channel, location, and / or speed to gNB 404. In this way, the NW may determine a corresponding measurement period based on the reported information.

[0076] In some example embodiments, after determining the measurement period, the first device 110 may use different DRX cycles in the overlapping portion and the non-overlapping portion of the first PTW and the second PTW. Figure 5 Example eDRX and DRX configurations in the case where the RAN PTW and CN PTW partially overlap are shown in FIG. Figure 5 As shown, CN PTW 505 and RAN PTW 510 partially overlap, and CN PTW 505 is shorter than RAN PTW 510. CN eDRX cycle 515 is longer than RAN eDRX cycle 520. CN DRX cycle 525 (also referred to as CN configured DRX cycle) is shorter than RAN DRX cycle 530 (also referred to as RAN configured DRX cycle). If the maximum PTW is used, the first device 110 may need to use a different value for the adopted DRX cycle.

[0077] In some example embodiments, the first device 110 may perform measurements within the first PTW using a first DRX cycle during the measurement period, and perform measurements outside the first PTW using a second DRX cycle during the measurement period. In some example embodiments, the first DRX cycle may be a minimum of a DRX cycle configured for the first PTW, a DRX cycle configured for the second PTW, and a paging cycle broadcast in system information (SI). The second DRX cycle may be a DRX cycle configured for the second PTW.

[0078] In an example, a "constrained maximum method" may be used, where the measurement period may be determined as the maximum value of the first PTW and the second PTW to apply the maximum period between the first PTW and the second PTW to the serving cell / neighboring cell measurement under the condition of reusing the same T value used in the overlapping part of the CN and RAN PTW. Therefore, different values ​​of the DRX cycle may be used within the first PTW and outside the first PTW. For example, in an example embodiment where the first PTW is a CN PTW and the second PTW is a RAN PTW, within the non-overlapping part, T = min{DRX cycle configured by CN, DRX cycle configured by RAN, default paging cycle broadcast in system information}, where T represents the DRX cycle.

[0079] As an example, in overlapping or non-overlapping PH, within RAN PTW and in the case of non-overlapping with CN PTW, T=DRX cycle configured by RAN. In overlapping PH, within RAN PTW and in the case of partial overlap with CN PTW shorter than RAN PTW, the same T as in CN PTW can be applied. This solution can effectively minimize the increase in UE complexity and avoid reduced measurement time.

[0080] It should be understood that the rules and conditions used by the first device 110 also apply to the second device 120. For example, the second device 120 can use the same rule(s) and condition(s) to determine the measurement period and then transmit a signal during the determined measurement period. Example Method

[0081] Figure 6 FIG. 6 is a flowchart showing an example method 600 implemented at the first device 110 according to some example embodiments of the present disclosure. For the purpose of discussion, Figure 1 The perspective description method 600 of the first device 110 in FIG.

[0082] At block 610, the first device 110 receives a first configuration of a first paging time window. At block 620, the first device 110 receives a second configuration of a second paging time window. The second paging time window starts at a starting time point of the first paging time window and is longer than the first paging time window. At block 630, the first device 110 performs measurement on a signal from the second device 120 within a measurement period. The measurement period starts at the starting time point and has a length ranging from a first length of the first paging time window to a second length of the second paging time window.

[0083] In some example embodiments, the first device 110 may determine the measurement period as the second paging time window. The first device 110 may perform measurements within the first paging time window using the first discontinuous reception cycle during the measurement period, and perform measurements outside the first paging time window using the second discontinuous reception cycle during the measurement period.

[0084] In some example embodiments, the first discontinuous reception cycle is a minimum value among a discontinuous reception cycle configured for the first paging time window, a discontinuous reception cycle configured for the second paging time window, and a paging cycle broadcast in the system information. The second discontinuous reception cycle is a discontinuous reception cycle configured for the second paging time window.

[0085] In some example embodiments, first device 110 may adjust the length of the measurement period based on information including at least one of: channel quality, location of first device 110 in a cell, distance between first device 110 and a cell center, coverage enhancement mode of the first device, or mobility of the first device.

[0086] In some example embodiments, the first device 110 may select one of the first paging time window and the second paging time window as the measurement period based on the information.

[0087] In some exemplary embodiments, based on at least one condition related to the information being satisfied, the first device 110 may adjust the length of the measurement period.

[0088] In some example embodiments, at least one condition may include at least one of: a condition that channel quality is equal to or lower than a threshold quality; a condition that the first device is close to an edge of a cell; a condition that a distance between the first device and a center of the cell is equal to or greater than a threshold distance; a condition that coverage enhancement is configured for the first device; or a condition that mobility of the first device is equal to or greater than a threshold mobility.

[0089] In some example embodiments, the first device 110 may determine the measurement period as a first paging time window. Based on at least one condition being satisfied, the first device 110 may extend the measurement period from the first paging time window to a second paging time window.

[0090] In some exemplary embodiments, based on at least one condition being satisfied, the first device 110 may adjust the length of the measurement period in predefined steps.

[0091] In some exemplary embodiments, the first device 110 may receive a configuration related to at least one condition.

[0092] In some example embodiments, the first device 110 may transmit a report for the information to the second device 120 .

[0093] In some example embodiments, one of the first paging time window and the second paging time window comprises a paging time window configured by a radio access network, and the other of the first paging time window and the second paging time window comprises a paging time window configured by a core network.

[0094] In some example embodiments, the first paging time window and the second paging time window are associated with a cell, and the cell includes at least one of the following: a serving cell, a neighboring cell.

[0095] Figure 7 FIG. 7 is a flowchart showing an example method 700 implemented at the second device 120 according to some example embodiments of the present disclosure. For the purpose of discussion, Figure 1 The perspective description method 700 of the second device 120 in FIG.

[0096] At block 710, the second device 120 transmits a first configuration of a first paging time window to the first device 110. At block 720, the second device 120 transmits a second configuration of a second paging time window to the first device 110. The second paging time window starts at a starting time point of the first paging time window and is longer than the first paging time window. At block 730, the second device 120 transmits a signal to the first device 110 during a measurement period. The measurement period starts at the starting time point and has a length ranging from a first length of the first paging time window to a second length of the second paging time window.

[0097] In some example embodiments, the second device 120 may transmit, to the first device 110, a configuration related to at least one condition for adjusting the measurement period.

[0098] In some example embodiments, the at least one condition may be related to information, which may include at least one of the following: channel quality, the location of the first device 110 in the cell, the distance between the first device 110 and the cell center, the coverage enhancement mode of the first device, or the mobility of the first device 110.

[0099] In some example embodiments, at least one condition may include at least one of: a condition that channel quality is equal to or lower than a threshold quality; a condition that the first device is close to an edge of a cell; a condition that a distance between the first device and a center of the cell is equal to or greater than a threshold distance; a condition that coverage enhancement is configured for the first device; or a condition that mobility of the first device is equal to or greater than a threshold mobility.

[0100] In some example embodiments, the second device 120 may receive from the first device 110 a report for information from the first device 110; and determine the measurement period based on the report for information.

[0101] In some example embodiments, one of the first paging time window and the second paging time window comprises a paging time window configured by a radio access network, and the other of the first paging time window and the second paging time window comprises a paging time window configured by a core network.

[0102] In some exemplary embodiments, the first paging time window and the second paging time window are associated with a cell, and the cell includes at least one of the following: a serving cell of the first device and a neighboring cell.

[0103] With the above reference Figures 1 to 5 All operations and features described with respect to the first device 110 and the second device 120 are equally applicable to the methods 600 and 700 and have similar effects. For the purpose of simplicity, the details will be omitted. Example devices, equipment, and media

[0104] In some example embodiments, a first device (eg, Figure 1 The first device 110 in the method 600 may include a component for performing the corresponding operation of the method 600. The component may be implemented in any suitable form. For example, the component may be implemented in a circuit or a software module. The first device may be implemented as Figure 1 The first device 110 or is included in Figure 1 In the first device 110.

[0105] In some example embodiments, the first device includes: a component for receiving a first configuration of a first paging time window; a component for receiving a second configuration of a second paging time window, the second paging time window starting at a starting time point of the first paging time window and being longer than the first paging time window; and a component for performing measurements on a signal from the second device 120 within a measurement period, the measurement period starting at the starting time point and having a length ranging from a first length of the first paging time window to a second length of the second paging time window.

[0106] In some example embodiments, the first device includes: a component for determining a measurement period as a second paging time window; a component for performing measurements within the first paging time window using a first discontinuous reception cycle during the measurement period; and a component for performing measurements outside the first paging time window using a second discontinuous reception cycle during the measurement period.

[0107] In some example embodiments, the first discontinuous reception cycle is a minimum value of a discontinuous reception cycle configured for a first paging time window, a discontinuous reception cycle configured for a second paging time window, and a paging cycle broadcast in system information, and the second discontinuous reception cycle is a discontinuous reception cycle configured for a second paging time window.

[0108] In some example embodiments, the first device includes: a component for adjusting the length of the measurement period based on information, the information including at least one of the following: channel quality, the location of the first device in the cell, the distance between the first device and the center of the cell, the coverage enhancement mode of the first device, or the mobility of the first device.

[0109] In some example embodiments, the first apparatus includes means for selecting, based on the information, one of the first paging time window and the second paging time window as the measurement period.

[0110] In some exemplary embodiments, the first apparatus further comprises means for adjusting a length of the measurement period based on at least one condition associated with the information being satisfied.

[0111] In some example embodiments, at least one condition includes at least one of: a condition that channel quality is equal to or lower than a threshold quality; a condition that the first device is close to an edge of a cell; a condition that a distance between the first device and a center of a cell is equal to or greater than a threshold distance; a condition that coverage enhancement is configured for the first device; or a condition that mobility of the first device is equal to or greater than a threshold mobility.

[0112] In some example embodiments, the first apparatus includes: means for determining the measurement period as a first paging time window; and means for extending the measurement period from the first paging time window to a second paging time window based on at least one condition being satisfied.

[0113] In some exemplary embodiments, the first apparatus comprises means for adjusting the length of the measurement period in predefined steps based on at least one condition being satisfied.

[0114] In some example embodiments, the first apparatus comprises means for receiving a configuration related to at least one condition.

[0115] In some example embodiments, a first apparatus comprises means for transmitting a report of the information to a second apparatus.

[0116] In some example embodiments, one of the first paging time window and the second paging time window comprises a paging time window configured by a radio access network, and the other of the first paging time window and the second paging time window comprises a paging time window configured by a core network.

[0117] In some exemplary embodiments, the first paging time window and the second paging time window are associated with a cell, and the cell includes at least one of the following: a serving cell and a neighboring cell.

[0118] In some example embodiments, the first apparatus further comprises means for performing the method 600 or other operations in some example embodiments of the first apparatus 110. In some example embodiments, the means comprises at least one processor and at least one memory storing instructions that, when executed by the at least one processor, cause the first apparatus to perform the operations.

[0119] In some example embodiments, a second device (eg, Figure 1 The second device 120 in the method 700 may include a component for performing the corresponding operation of the method 700. The component may be implemented in any suitable form. For example, the component may be implemented in a circuit or a software module. The second device may be implemented as Figure 1 The second device 120 in or included in Figure 1 In the second device 120.

[0120] In some example embodiments, the second device includes: a component for transmitting a first configuration of a first paging time window to the first device; a component for transmitting a second configuration of a second paging time window to the first device, the second paging time window starting at a starting time point of the first paging time window and being longer than the first paging time window; and a component for transmitting a signal to the first device within a measurement period, the measurement period starting at the starting time point and having a length ranging from a first length of the first paging time window to a second length of the second paging time window.

[0121] In some exemplary embodiments, the second device includes: means for transmitting to the first device a configuration related to at least one condition for adjusting the measurement period.

[0122] In some example embodiments, the at least one condition may be related to information, which may include at least one of the following: channel quality, the location of the first device 110 in the cell, the distance between the first device 110 and the cell center, the coverage enhancement mode of the first device, or the mobility of the first device 110.

[0123] In some example embodiments, at least one condition may include at least one of: a condition that channel quality is equal to or lower than a threshold quality; a condition that the first device is close to an edge of a cell; a condition that a distance between the first device and a center of the cell is equal to or greater than a threshold distance; a condition that coverage enhancement is configured for the first device; or a condition that mobility of the first device is equal to or greater than a threshold mobility.

[0124] In some example embodiments, the second apparatus comprises: means for receiving, from the first apparatus, a report for information from the first apparatus; and means for determining a measurement period based on the report for information.

[0125] In some example embodiments, one of the first paging time window and the second paging time window comprises a paging time window configured by a radio access network, and the other of the first paging time window and the second paging time window comprises a paging time window configured by a core network.

[0126] In some example embodiments, the first paging time window and the second paging time window are associated with a cell, and the cell includes at least one of the following: a serving cell, a neighboring cell.

[0127] In some example embodiments, the second device further comprises means for performing the method 700 or other operations in some example embodiments of the second device 120. In some example embodiments, the means comprises at least one processor and at least one memory storing instructions that, when executed by the at least one processor, cause the second device to perform the operations.

[0128] Figure 8 8 is a simplified block diagram of an apparatus 800 suitable for implementing an exemplary embodiment of the present disclosure. The apparatus 800 may be configured to implement a communication device, such as Figure 1 The first device 110 or the second device 120 shown in FIG. As shown in the figure, the device 800 includes one or more processors 810, one or more memories 820 coupled to the processor 810, and one or more communication modules 840 coupled to the processor 810.

[0129] The communication module 840 is used for two-way communication. The communication module 840 has one or more communication interfaces to facilitate communication with one or more other modules or devices. The communication interface may represent any interface necessary for communication with other network elements. In some example embodiments, the communication module 840 may include at least one antenna.

[0130] Processor 810 may be of any type suitable for the local technology network and may include one or more of the following: a general purpose computer, a special purpose computer, a microprocessor, a digital signal processor (DSP), and a processor based on a multi-core processor architecture, as non-limiting examples. Device 800 may have multiple processors, such as application specific integrated circuit chips, which are time-slaved to a clock that synchronizes a master processor.

[0131] The memory 820 may include one or more non-volatile memories and one or more volatile memories. Examples of non-volatile memories include, but are not limited to, read-only memory (ROM) 824, electrically programmable read-only memory (EPROM), flash memory, hard disk, compact disk (CD), digital video disk (DVD), optical disk, laser disk, and other magnetic and / or optical memories. Examples of volatile memories include, but are not limited to, random access memory (RAM) 822 and other volatile memories that will not last for the duration of a power outage.

[0132] The computer program 830 includes computer executable instructions executed by the associated processor 810. The instructions of the program 830 may include instructions for performing the operations / actions of some example embodiments of the present disclosure. The program 830 may be stored in a memory (e.g., ROM 824). The processor 810 may perform any suitable actions and processes by loading the program 830 into the RAM 822.

[0133] The exemplary embodiments of the present disclosure may be implemented by a program 830 so that the device 800 may execute the Figures 3 to 7 Any process of the present disclosure discussed. Example embodiments of the present disclosure may also be implemented by hardware or a combination of software and hardware.

[0134] In some exemplary embodiments, the program 830 may be tangibly embodied in a computer-readable medium that may be included in the device 800 (such as in the memory 820) or in other storage devices accessible by the device 800. The device 800 may load the program 830 from the computer-readable medium to the RAM 822 for execution. In some exemplary embodiments, the computer-readable medium may include any type of non-transitory storage medium, such as ROM, EPROM, flash memory, hard disk, CD, DVD, etc. The term "non-transitory" as used herein is a limitation of the medium itself (i.e., tangible, not a signal), versus a limitation on data storage persistence (e.g., RAM vs. .ROM).

[0135] Fig. 9 An example of a computer readable medium 900 is shown, which may be in the form of a CD, DVD or other optical storage disk. The computer readable medium 900 has a program 830 stored thereon.

[0136] Generally, various embodiments of the present disclosure may be implemented in hardware or dedicated circuits, software, logic, or any combination thereof. Some aspects may be implemented in hardware, and other aspects may be implemented in firmware or software, which may be executed by a controller, microprocessor, or other computing device. Although various aspects of the embodiments of the present disclosure are illustrated and described as block diagrams, flow charts, or using some other graphical representations, it should be understood that, as non-limiting examples, the blocks, devices, systems, techniques, or methods described herein may be implemented in hardware, software, firmware, dedicated circuits or logic, general hardware or controllers or other computing devices, or some combination thereof.

[0137] Some example embodiments of the present disclosure also provide at least one computer program product tangibly stored on a computer-readable medium (such as, non-volatile computer-readable medium). The computer program product includes computer executable instructions, such as those computer executable instructions executed in a device on a target physical or virtual processor included in a program module to perform any method as described above. Typically, a program module includes routines, programs, libraries, objects, classes, components, data structures, etc. that perform specific tasks or implement specific abstract data types. The functionality of a program module can be combined or split between program modules as needed in different embodiments. Machine executable instructions for program modules can be executed in local or distributed devices. In distributed devices, program modules can be located in local and remote storage media.

[0138] The program code for performing the method of the present disclosure may be written in any combination of one or more programming languages. The program code may be provided to a processor or controller of a general-purpose computer, a special-purpose computer, or other programmable data processing device so that the program code, when executed by the processor or controller, causes the implementation of the functions / operations specified in the flow chart and / or block diagram. The program code may be executed entirely on the machine, partially on the machine, as an independent software package, partially on the machine, partially on a remote machine, or entirely on a remote machine or server.

[0139] In the context of the present disclosure, computer program codes or related data may be carried by any suitable carrier to enable a device, apparatus or processor to perform the various processes and operations described above. Examples of carriers include signals, computer readable media, etc.

[0140] The computer readable medium may be a computer readable signal medium or a computer readable storage medium. The computer readable medium may include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, devices, or devices, or any suitable combination of the foregoing. More specific examples of computer readable storage media will include an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0141] Further, although the operations are depicted in a particular order, this should not be construed as requiring the execution of such operations in the particular order shown or in a sequential order, or the execution of all described operations, to achieve the desired result. In some cases, multitasking and parallel processing may be advantageous. Similarly, although several specific implementation details are included in the above discussion, these should not be construed as limitations on the scope of the present disclosure, but rather as descriptions of features that may be specific to a particular embodiment. Unless explicitly stated, certain features described in the context of a separate embodiment may also be implemented in combination in a single embodiment. On the contrary, unless explicitly stated, the different features described in the context of a single embodiment may also be implemented in multiple embodiments individually or in any suitable subcombination.

[0142] Although the disclosure has been described in language specific to structural features and / or methodological actions, it is to be understood that the disclosure defined in the appended claims is not necessarily limited to the specific features or actions described above. Instead, the specific features and actions described above are disclosed as example forms of implementing the claims.

[0143] Example 1. A first device, comprising:

[0144] at least one processor; and

[0145] at least one memory storing instructions that, when executed by at least one processor, cause the first device to at least:

[0146] receiving a first configuration of a first paging time window;

[0147] receiving a second configuration of a second paging time window, the second paging time window starting at a starting time point of the first paging time window and being longer than the first paging time window; and

[0148] Measurement is performed on a signal from the second device within a measurement period, the measurement period starting at a start time point and having a length ranging from a first length of the first paging time window to a second length of the second paging time window.

[0149] Example 2. A first device according to Example 1, wherein at least one memory and at least one processor cause the first device to: determine a measurement period as a second paging time window; during the measurement period, perform measurements within the first paging time window using a first discontinuous reception cycle; and during the measurement period, perform measurements outside the first paging time window using a second discontinuous reception cycle.

[0150] Example 3. A first device according to Example 2, wherein the first discontinuous reception cycle is a minimum value among a discontinuous reception cycle configured for a first paging time window, a discontinuous reception cycle configured for a second paging time window, and a paging cycle broadcast in system information, and the second discontinuous reception cycle is a discontinuous reception cycle configured for a second paging time window.

[0151] Example 4. A first device according to Example 1, wherein at least one memory and at least one processor enable the first device to: adjust the length of the measurement period based on information, the information including at least one of the following: channel quality, the location of the first device in the cell, the distance between the first device and the center of the cell, the coverage enhancement mode of the first device, or the mobility of the first device.

[0152] Example 5. The first apparatus of Example 4, wherein the at least one memory and the at least one processor cause the first apparatus to: select one of the first paging time window and the second paging time window as the measurement period based on the information.

[0153] Example 6. The first apparatus of example 4, wherein the at least one memory and the at least one processor cause the first apparatus to: adjust a length of the measurement period based on at least one condition associated with the information being satisfied.

[0154] Example 7. A first device according to Example 6, wherein at least one condition includes at least one of the following: a condition that channel quality is equal to or lower than a threshold quality; a condition that the first device is close to an edge of a cell; a condition that a distance between the first device and the center of the cell is equal to or greater than a threshold distance; a condition that coverage enhancement is configured for the first device; or a condition that mobility of the first device is equal to or greater than a threshold mobility.

[0155] Example 8. The first device according to Example 6 or 7, wherein at least one memory and at least one processor cause the first device to: determine the measurement period as a first paging time window; and extend the measurement period from the first paging time window to a second paging time window based on at least one condition being satisfied.

[0156] Example 9. The second apparatus of example 6 or 7, wherein the at least one memory and the at least one processor cause the first apparatus to: adjust the length of the measurement period by a predefined step size based on at least one condition being satisfied.

[0157] Example 10. The first device of any one of Examples 5 to 9, wherein at least one memory and at least one processor cause the first device to: receive a configuration associated with at least one condition.

[0158] Example 11. The first device of any one of Examples 4 to 9, wherein at least one memory and at least one processor cause the first device to: transmit a report on the information to the second device.

[0159] Example 12. A first device according to any one of Examples 1 to 11, wherein one of the first paging time window and the second paging time window includes a paging time window configured by a radio access network, and the other of the first paging time window and the second paging time window includes a paging time window configured by a core network.

[0160] Example 13. The first apparatus according to any one of Examples 1 to 12, wherein the first paging time window and the second paging time window are associated with a cell, and the cell includes at least one of the following: a serving cell, a neighboring cell.

[0161] Example 14. A second device comprising:

[0162] at least one processor; and

[0163] at least one memory, the at least one memory storing instructions that, when executed by the at least one processor, cause the second device to at least:

[0164] transmitting a first configuration of a first paging time window to a first device;

[0165] transmitting a second configuration of a second paging time window to the first device, the second paging time window starting at a starting time point of the first paging time window and being longer than the first paging time window; and

[0166] A signal is transmitted to the first device during a measurement period, the measurement period starting at a start time point and having a length ranging from a first length of the first paging time window to a second length of the second paging time window.

[0167] Example 15. The second apparatus of Example 14, wherein the at least one memory and the at least one processor cause the second apparatus to: transmit, to the first apparatus, a configuration related to at least one condition for adjusting the measurement period.

[0168] Example 16. A second device according to Example 15, wherein at least one condition is related to information, the information comprising at least one of: channel quality, the location of the first device in the cell, the distance between the first device and the center of the cell, the coverage enhancement mode of the first device, or the mobility of the first device.

[0169] Example 17. A second device according to Example 16, wherein at least one condition includes at least one of: a condition that channel quality is equal to or lower than a threshold quality; a condition that the first device is close to an edge of a cell; a condition that a distance between the first device and the center of the cell is equal to or greater than a threshold distance; a condition that coverage enhancement is configured for the first device; or a condition that mobility of the first device is equal to or greater than a threshold mobility.

[0170] Example 18. The second device of Example 16 or 17, wherein the at least one memory and the at least one processor cause the second device to: receive a report for information from the first device; and determine a measurement period based on the report for information.

[0171] Example 19. A second device according to any one of Examples 14 to 18, wherein one of the first paging time window and the second paging time window includes a paging time window configured by a radio access network, and the other of the first paging time window and the second paging time window includes a paging time window configured by a core network.

[0172] Example 20. The second device according to any one of Examples 14 to 19, wherein the first paging time window and the second paging time window are associated with a cell, and the cell includes at least one of the following: a serving cell of the first device, and a neighboring cell.

[0173] Example 21. A method comprising:

[0174] receiving a first configuration of a first paging time window;

[0175] receiving a second configuration of a second paging time window, the second paging time window starting at a starting time point of the first paging time window and being longer than the first paging time window; and

[0176] Measurement is performed on a signal from the second device within a measurement period, the measurement period starting at a start time point and having a length ranging from a first length of the first paging time window to a second length of the second paging time window.

[0177] Example 22. A method comprising:

[0178] transmitting a first configuration of a first paging time window to a first device;

[0179] transmitting a second configuration of a second paging time window to the first device, the second paging time window starting at a starting time point of the first paging time window and being longer than the first paging time window; and

[0180] A signal is transmitted to the first device within a measurement period, the measurement period starting at the start time point and having a length ranging from a first length of the first paging time window to a second length of the second paging time window.

[0181] Example 23. A first device comprising:

[0182] means for receiving a first configuration of a first paging time window;

[0183] means for receiving a second configuration of a second paging time window, the second paging time window starting at a starting time point of the first paging time window and being longer than the first paging time window; and

[0184] Means for performing measurement on a signal from the second device within a measurement period, the measurement period starting at a start time point and having a length ranging from a first length of the first paging time window to a second length of the second paging time window.

[0185] Example 24. A second device comprising:

[0186] means for transmitting a first configuration of a first paging time window to a first device;

[0187] means for transmitting a second configuration of a second paging time window to the first device, the second paging time window starting at a starting time point of the first paging time window and being longer than the first paging time window; and

[0188] Means for transmitting a signal to the first device during a measurement period, the measurement period starting at a start time point and having a length ranging from a first length of the first paging time window to a second length of the second paging time window.

[0189] Example 25. A computer-readable medium comprising instructions stored thereon, the instructions being used to cause an apparatus to at least perform the method according to Example 21 or the method according to Example 22.

Claims

1. A first device for communication, comprising: at least one processor; as well as at least one memory storing instructions that, when executed by the at least one processor, cause the first device to at least: receiving a first configuration of a first paging time window; receiving a second configuration of a second paging time window, the second paging time window starting at a starting time point of the first paging time window and being longer than the first paging time window; as well as Measurement is performed on a signal from the second device within a measurement period that starts at the start time point and has a length ranging from a first length of the first paging time window to a second length of the second paging time window.

2. The first device of claim 1, wherein the at least one memory and the at least one processor enable the first device to: Determining the measurement period as the second paging time window; During the measurement period, performing the measurement within the first paging time window using a first discontinuous reception cycle; and The measurement is performed outside the first paging time window using a second discontinuous reception cycle during the measurement period.

3. The first device according to claim 2, wherein The first discontinuous reception cycle is a minimum value among a discontinuous reception cycle configured for the first paging time window, a discontinuous reception cycle configured for the second paging time window, and a paging cycle broadcast in system information, and The second discontinuous reception cycle is a discontinuous reception cycle configured for the second paging time window.

4. The first device of claim 1, wherein the at least one memory and the at least one processor enable the first device to: The length of the measurement period is adjusted based on information, the information comprising at least one of: Channel quality, the location of the first device in the cell, the distance between the first device and the center of the cell, a coverage enhancement mode of the first device, or Mobility of the first device.

5. The first device of claim 4, wherein the at least one memory and the at least one processor enable the first device to: Based on the information, one of the first paging time window and the second paging time window is selected as the measurement period.

6. The first device of claim 4, wherein the at least one memory and the at least one processor enable the first device to: The length of the measurement period is adjusted based on at least one condition associated with the information being satisfied.

7. The first device according to claim 6, wherein the at least one condition comprises at least one of the following: a condition where the channel quality is equal to or below a threshold quality; A condition that the first device is close to an edge of the cell; a condition that the distance between the first device and the center of the cell is equal to or greater than a threshold distance; a condition that coverage enhancement is configured for the first device; or A condition that the mobility of the first device is equal to or greater than a threshold mobility.

8. The first device according to claim 6 or 7, wherein the at least one memory and the at least one processor enable the first device to: determining the measurement period as the first paging time window; and Based on the at least one condition being satisfied, the measurement period is extended from the first paging time window to the second paging time window.

9. The second device according to claim 6 or 7, wherein the at least one memory and the at least one processor enable the first device to: Based on the at least one condition being met, the length of the measurement period is adjusted in predefined steps.

10. The first device according to any one of claims 5 to 7, wherein the at least one memory and the at least one processor enable the first device to: A configuration associated with the at least one condition is received.

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