Apparatus, method, device and computer readable medium for measuring multiple secondary cells

Abstract

Apparatuses, methods, devices, and computer readable media for measuring a plurality of secondary cells are disclosed. An example apparatus for a terminal device may include at least one processor and at least one memory. The at least one memory may store instructions that, when executed by the at least one processor, may cause the terminal device to at least: receive a configuration for discontinuous transmissions defining active and inactive periods, respectively, of a plurality of secondary cells; determining an overlapping state of the active periods of the plurality of secondary cells; determining a measurement delay for measuring the plurality of secondary cells based on the determined overlapping state of the active periods of the plurality of secondary cells; and measuring the plurality of secondary cells within the measurement delay.

Description

Technical Field

[0001] Various example embodiments are directed to apparatus, methods, devices, and computer-readable media for measuring multiple secondary cells (SCells). Background Art

[0002] Measuring cells within a measurement delay can be the basis for data transmission for a user equipment (UE). If the UE is configured to measure multiple measurement objects (MO) on carriers of multiple SCells, respectively, it is assumed that the UE is able to measure only one cell of one carrier within one measurement opportunity. When the UE is configured to measure / monitor multiple SCells, a carrier-specific scaling factor (CSSF) is introduced to scale the measurement delay. In the case of overlapping measurement opportunities, it may be necessary to extend the measurement delay by multiplying the value of the CSSF. On the network (NW) side, cell discontinuous transmission (DTX), cell discontinuous reception (DRX), etc. have been introduced for network energy saving (NES). The cell DTX / DRX configuration defines the active period and the inactive (also known as inactive) period of the cell. Cell DTX may also affect the measurement delay. Summary of the invention

[0003] A brief summary of exemplary embodiments is provided below to provide a basic understanding of some aspects of various embodiments. It should be noted that this summary is not intended to identify key features of basic elements or define the scope of various embodiments, and its sole purpose is to introduce some concepts in a simplified form as a prelude to the more detailed description provided below.

[0004] In a first aspect, an apparatus for a terminal device is disclosed. The apparatus may include at least one processor and at least one memory. The at least one memory may store instructions, which, when executed by the at least one processor, may cause the terminal device to at least: receive a configuration for discontinuous transmission for defining an active period and an inactive period of a plurality of secondary cells, respectively; determine an overlapping state of the active periods of the plurality of secondary cells; determine a measurement delay for measuring the plurality of secondary cells based on the determined overlapping state of the active periods of the plurality of secondary cells; and measure the plurality of secondary cells within the measurement delay.

[0005] In a second aspect, an apparatus for a network device is disclosed. The apparatus may include at least one processor and at least one memory. The at least one memory may store instructions that, when executed by the at least one processor, may cause the network device to at least: transmit a configuration for discontinuous transmission to a terminal device served by the network device, which respectively defines an active period and an inactive period of a plurality of secondary cells associated with the network device, wherein the active periods of the plurality of secondary cells are separated in time.

[0006] In a third aspect, a method performed by an apparatus for a terminal device is disclosed. The method may include: receiving a configuration for discontinuous transmission for respectively defining an active period and an inactive period of a plurality of secondary cells; determining an overlapping state of the active periods of the plurality of secondary cells; determining a measurement delay for measuring the plurality of secondary cells based on the determined overlapping state of the active periods of the plurality of secondary cells; and measuring the plurality of secondary cells within the measurement delay.

[0007] In a fourth aspect, a method performed by an apparatus for a network device is disclosed. The method may include: transmitting a configuration for discontinuous transmission to a terminal device served by the network device, which respectively defines an active period and an inactive period of a plurality of secondary cells associated with the network device, wherein the active periods of the plurality of secondary cells are separated in time.

[0008] In a fifth aspect, a device for a terminal device is disclosed. The device for the terminal device may include: a device for receiving a configuration for discontinuous transmission for respectively defining an active period and an inactive period of a plurality of secondary cells; a device for determining an overlapping state of the active periods of the plurality of secondary cells; a device for determining a measurement delay for measuring the plurality of secondary cells based on the determined overlapping state of the active periods of the plurality of secondary cells; and a device for measuring the plurality of secondary cells within the measurement delay.

[0009] In a sixth aspect, an apparatus for a network device is disclosed. The apparatus for the network device may include: means for transmitting to a terminal device served by the network device a configuration for discontinuous transmission respectively defining active periods and inactive periods of a plurality of secondary cells associated with the network device, wherein the active periods of the plurality of secondary cells are separated in time.

[0010] In a seventh aspect, a computer-readable medium is disclosed. The computer-readable medium may include program instructions, which, when executed by an apparatus for a terminal device, may cause the terminal device to at least perform: receiving a configuration for discontinuous transmission for respectively defining an active period and an inactive period of a plurality of secondary cells; determining an overlapping state of the active periods of the plurality of secondary cells; determining a measurement delay for measuring the plurality of secondary cells based on the determined overlapping state of the active periods of the plurality of secondary cells; and measuring the plurality of secondary cells within the measurement delay.

[0011] In an eighth aspect, a computer-readable medium is disclosed. The computer-readable medium may include program instructions, which, when executed by an apparatus for a network device, cause the network device to at least perform: transmitting a configuration for discontinuous transmission to a terminal device served by the network device, the configuration defining an active period and an inactive period of a plurality of secondary cells associated with the network device, respectively, wherein the active periods of the plurality of secondary cells are separated in time.

[0012] A computer-readable medium comprises instructions for causing a device to execute at least any one of the methods described above.

[0013] Other features and advantages of example embodiments of the present disclosure will also be apparent from the following description of specific embodiments when read in conjunction with the accompanying drawings, which illustrate, by way of example, the principles of example embodiments of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Some example embodiments will now be described, by way of non-limiting examples, with reference to the accompanying drawings.

[0015] Figure 1 Example scenarios are shown in which various example embodiments of the present disclosure may be implemented.

[0016] Figure 2 An example sequence diagram for measuring multiple SCells according to an example embodiment of the present disclosure is shown.

[0017] Figure 3A An example sequence diagram for measuring multiple SCells in an overlapping state according to an example embodiment of the present disclosure is shown.

[0018] Figure 3B An example sequence diagram for measuring multiple SCell cells in another overlapping state according to an example embodiment of the present disclosure is shown.

[0019] Figure 4 A flow chart is shown illustrating an example method 400 for measuring multiple SCells according to an example embodiment of the present disclosure.

[0020] Figure 5 A flow chart is shown illustrating an example method 500 for measuring multiple SCells according to an example embodiment of the present disclosure.

[0021] Figure 6 A block diagram illustrating an example apparatus 600 for measuring multiple SCells according to an example embodiment of the present disclosure is shown.

[0022] Figure 7 A block diagram illustrating an example apparatus 700 for measuring multiple SCells according to an example embodiment of the present disclosure is shown.

[0023] Figure 8 A block diagram illustrating an example device 800 for measuring multiple SCells according to an example embodiment of the present disclosure is shown.

[0024] Fig. 9 A block diagram is shown illustrating an example device 900 for measuring multiple SCells according to an example embodiment of the present disclosure.

[0025] Throughout the drawings, the same or similar reference numerals indicate the same or similar elements, and repeated description of the same elements will be omitted. DETAILED DESCRIPTION

[0026] Hereinafter, some example embodiments are described in detail with reference to the accompanying drawings. The following description includes specific details for providing a comprehensive understanding of the various concepts. However, it is apparent to those skilled in the art that these concepts can be practiced without these specific details. In some cases, well-known circuits, techniques, and components are shown in block diagram form to avoid obfuscation of the concepts and features described.

[0027] Various exemplary embodiments of the present disclosure provide a solution for measuring multiple SCells. According to various exemplary embodiments of the present disclosure, a UE may be allowed to measure multiple SC cells in parallel according to a cell DTX configuration, thereby reducing measurement delay.

[0028] Figure 1 An example scenario in which an example embodiment of the present disclosure may be implemented is shown. Figure 1 , assuming that the UE needs to measure SCell1 and SCell2, the UE can measure SCell 1 at measurement opportunities 112, 114, 116 and 118, and the UE can measure SCell 2 at measurement opportunities 122, 124, 126 and 128.

[0029] Figure 1 An unfavorable scenario for measuring SCell1 and SCell2 is shown, where measurement opportunities 112, 114, 116 and 118 overlap with measurement opportunities 122, 124, 126 and 128 respectively, and the UE must alternately measure SCell 1 and SCell 2, because measurements on SCell 1 may be delayed or interfered by measurements on SCell 2, and vice versa.

[0030] exist Figure 1 In the scenario shown in , SCell1 and SCell2 have their own cell DTX configurations, which may define different active (transmitting) and inactive (no transmission) timings. The measurement opportunities may be filtered by cell DTX. For example, it may be assumed that the UE does not measure the cell during the cell DTX inactive period when the cell is not transmitting. If Figure 1 As shown in FIG. 1 , SCell1 has active periods 110 and 115, and SCell2 has active periods 120 and 125, and the UE can measure SCell1 in measurement periods 112 and 116, and measure SCell2 in measurement periods 124 and 128. Due to cell DTX, the measurement on SCell1 will not be delayed or interfered by the measurement on SCell2, and vice versa, so the measurements on SCell 1 and SCell2 can be performed without interference.

[0031] The measured MO can be, for example, a channel state information reference signal (CSI-RS) for the SCell, a synchronization signal block (SSB) for the SCell, or both. The measurement object indicates the parameters that should be measured, such as the frequency / time position and subcarrier spacing of one or more reference signals to be measured. It will be appreciated by those skilled in the art that the various example embodiments of the present disclosure may be implemented to measure other signals of the SCell. SSB may also refer to synchronization signals and physical broadcast channel (PBCH) blocks. In the present disclosure, the term SSB or synchronization signal block may also refer to synchronization signals and PBCH blocks.

[0032] Figure 2 An example sequence diagram for measuring multiple SCells according to an example embodiment of the present disclosure is shown. Figure 2 UE 210 may represent any terminal device in a wireless network. On the network side, the primary cell (PCell), SCell1 and SCell2 (also in Figure 1 ) serves UE 210. PCell, SCell1, and SCell2 may be associated with different network devices or the same network device. Figure 2 210 are shown to collectively represent the network side serving the UE 210. The UE 210 may be in a radio resource control (RRC) connected mode with the network side.

[0033] The network device 250 may determine, for the UE 210, a DTX configuration for respectively defining an active period and an inactive period of a plurality of SCell cells, and transmit the cell DTX configuration to the UE 210. In the present disclosure, two SCells, namely SCell1 and SCell2, are shown to represent a plurality of SCells, and those skilled in the art may understand that each exemplary embodiment of the present disclosure may be implemented as a scenario with more SCells.

[0034] Assuming that the DTX configuration of SCell1 is represented as 260-1, and the DTX setting of SCell2 is represented as 260-2, the network device 250 may transmit the cell DTX configuration 260-1 and the cell DTX configuration 260-2 to the UE 210. In some embodiments, the network device 250 may activate the cell DTX configuration 260-1 on SCell1 and the cell DTX configuration 260-2 on SCell2 by using a cell DTX configuration activation message. In addition, the network side, such as SCell1 and SCell2, may transmit activation signaling 265-1 and activation signaling 265-2 to the UE 210 to activate the cell DTX configuration 260-1 and the cell DTX configuration 260-2, respectively. The activation signaling 265-1 and the activation signaling 265-2 may be transmitted, for example, later in a message different from the message that conveys the cell DTX configuration 260-1 and the cell DTX configuration 260-2. The activation signaling 265-1 and the activation signaling 265-2 may respectively notify the UE 210 of the activation of the cell DTX configuration 260-1 and the activation of the cell DTX configuration 260-2.

[0035] Then, in operation 215, UE 210 may determine an overlapping state of the activity periods of SCell1 and SCell2. In operation 220, based on the determined overlapping state of the activity periods of the plurality of secondary cells, UE 210 may determine a measurement delay for measuring SCell1 and SCell2, and then in operation 225, UE 210 may measure SCell2 and SCell1 within the measurement delay.

[0036] Figure 3A An example sequence diagram for measuring multiple SCells in an overlapping state according to an example embodiment of the present disclosure is shown. Figure 3A The measurements on multiple SCells shown in can be performed in a non-interference manner, so that the measurement on one SCell is not delayed by the measurement on another SCell. The non-interference manner can also be referred to as a manner without interference.

[0037] In some embodiments, if the overlapping state determined in operation 215 is that the activity periods of the plurality of SCells are separated in time, for example, Figure 1As shown in , the active periods 110 and 115 of SCell1 are separated in time from the active periods 120 and 125 of SCell2, then the measurements during the active periods on SCell1 and SCell2 can be performed in a non-interference manner, so that the measurements on SCell1 are not delayed (i.e., not delayed) due to the measurements on SCell2, and vice versa. In this case, due to the non-overlapping DTX active periods of multiple SCells, UE 210 can "hop" between different SCells to make measurements, and these measurements can be made without incurring any additional delay. Therefore, the measurement delay requirement can be defined in the same way as the case where UE 210 only measures a single cell. Therefore, this is a non-interference way to measure.

[0038] In some embodiments, if the determined overlap state is that the activity periods of SCell1 and SCell2 are separated in time by a distance greater than a threshold, measurements during the activity periods on SCell1 and SCell2 may be performed in a non-interfering manner. The threshold may be greater than zero. This is a stricter requirement than in the embodiments of the previous paragraphs. For example, if UE 210 has one searcher for measurements on SCell1 and SCell2, refer to Figure 1 , after the measurement during the active period 110 on SCell1, the UE 210 may need a time period to switch the searcher from SCell1 to SCell2. The searcher may include radio frequency components and / or baseband components that require some time to perform the switch. In this case, if the active period 120 and the active period 110 are separated in time by a distance greater than the time period for switching between measurements on SCell1 and SCell2, the measurements during the active period 120 and the active period 110 can be performed in a non-interfering manner. Otherwise, if the active period 120 and the active period 110 are separated in time, but the time is shorter than the time period for switching between measurements on SCell1 and SCell2, the measurements during the active period 120 and the active period 110 are still performed in an alternating manner to be described later. In this case, in operation 215, the UE 210 may consider a threshold value that may be greater than or equal to the time period for switching when determining the overlapping state. If the overlap status indicates no overlap and the distance is above the threshold, the measurement may be performed in a non-interfering manner, ie without incurring any additional delay, and the measurement delay requirement may remain the same as for measurements of a single cell.

[0039] In some embodiments, the threshold value may be predefined in the standard, such as 5 ms. Alternatively, in some embodiments, the threshold value may be configured by the network device 250. For example, referring to Figure 3AIn operation 355, the network device 250 may configure a threshold 360 for the UE 210 to determine whether the overlapping state of the activity periods of SCell1 and Scell2 is that the activity periods of SCell1 and Scell2 are separated in time by a distance greater than the threshold in operation 215. Then, the network device 250 may transmit the threshold 360 to the UE 210.

[0040] In some embodiments, the UE 210 may transmit an indication 315 to the network device 250 indicating a time period for switching between measurements on Scell1 and Scell2 as a UE capability or a time value greater than the time period to allow some relaxation in UE implementation. Upon receiving the indication 315, in operation 355, the network device 250 may configure the threshold 360 to be greater than or equal to the time period or time value threshold for switching. In addition, in some embodiments, the network device 250 may determine and configure the cell DTX configurations 260-1 and 260-2 based on the time period. For example, the network device 250 may configure the activity periods of Scell1 and Scell2 to be separated by a time greater than the time period for switching, for example, as far as possible.

[0041] If the measurements are performed in a non-intrusive manner during the active periods of Scell1 and Scell2, refer to Figure 1 , measurements may be performed on Scell ​​1 and Scell ​​2 during the active period within one measurement cycle. For example, within measurement cycle 130, UE 210 may measure Scell ​​1 during active period 110 and measure Scell ​​2 during active period 120, and within measurement cycle 140, UE 220 may measure Scell ​​1 during active period 115 and measure Scell ​​2 during active period 125.

[0042] refer to Figure 3A In operation 320, when performing measurements on Scell1 and Scell2 in a non-interference manner during the active period, the UE 210 may count the Mo of Scell1 and Scell2 as one frequency layer. Figure 1As shown in FIG. 3 , if measurements are performed on Scell1 and Scell2 in a non-interference manner during these activity periods, although the UE 210 actually measures two Scells, namely, Scell1 and Scell2, the measurement duration or measurement delay is equivalent to the case where the UE 210 measures one Scell. If the UE 210 needs to measure five samples on the reference signal to be measured on the Scell ​​and derives a measurement report based on the measured five samples, the measurement duration or measurement delay for measuring both Scell1 and Scell2 is equal to the measurement duration or measurement delay for measuring one of Scell1 or Scell2. In this case, in operation 320, Mo of Scell1 and Scell2 may be counted as one frequency layer.

[0043] Alternatively or additionally, in operation 322, when performing measurements on Scell1 and Scell2 in a non-interference manner during the active period, the UE 210 may set the value of the CSSF to 1. Figure 1 As shown in , if the measurement of Scell1 and Scell2 during these activity periods is performed in a non-interference manner, although the UE 210 actually measures two Scells, namely Scell1 and Scell2, the measurement duration or measurement delay is equivalent to the case where the UE 210 measures one Scell. If the UE 210 needs to measure five samples on the reference signal to be measured on the Scell ​​and derives a measurement report based on the measured five samples, the measurement duration or measurement delay for measuring both Scell1 and Scell2 is equal to the measurement duration or measurement delay for measuring one of Scell ​​1 or Scell2. In this case, in operation 322, the value of CSSF is not scaled and can be set to 1, namely CSSF=1.

[0044] Then, operation 220 may be performed as Figure 3A 325 in the embodiment, where UE 210 may determine the measurement delay based on the number of frequency layers. Figure 1 In the scenario shown in FIG. 1 , where measurements on Scell1 and Scell2 during the active period are performed in a non-interfering manner, the measurement delay is determined based on the number of frequency layers. Figure 3A In the example of , Mo on Scell1 and Scell2 is counted as one frequency layer, so the number of its frequency layers is the same as the number of frequency layers when UE 210 measures Scell1 or Scell2, so the measurement delay is not extended or scaled by the number of Mo or Scell. Alternatively, UE 210 may determine the measurement delay based on the value of CSSF. Since CSSF=1, the measurement delay is not extended or scaled by CSSF.

[0045] Then, operation 225 can be performed as Figure 3A The operation 330 in the embodiment is performed, where the UE 210 can measure Scell1 and Scell2 during the active period within the measurement delay in a non-interference manner.

[0046] Figure 3B An example sequence diagram for measuring a plurality of Scells in another overlapping state according to an example embodiment of the present disclosure is shown. Figure 3B The measurements on the multiple SCells shown in FIG. 4 can be performed in an alternating manner, so that the measurement on one SCell is delayed due to the measurement on another SCell. Such a solution may result in an extension of the determined measurement delay.

[0047] In some embodiments, if the overlapping state determined in operation 215 is that the activity periods of the plurality of SCells at least partially overlap, for example Figure 1 As shown in , assuming that the active periods of SCell2 in this case are active periods 120' and 125' instead of active periods 120 and 125, the measurements on SCell1 and SCell2 during the active periods can be performed in an alternating manner, so that the measurement on SCell1 will be delayed due to the measurement on SCell2, and vice versa.

[0048] In this case, UE 210 may measure SCell1 during active period 110 in measurement cycle 130 and measure SCell 2 during active period 125 ′ in measurement cycle 140 , and measurement on SCell 2 during active period 120 ′ and measurement on SCell1 during active period 115 are delayed.

[0049] Alternatively, UE 210 may measure SCell1 during active period 110 within measurement cycle 130, and during active period 115 within measurement cycle 140 and subsequent measurement cycles to meet the sample number requirement for deriving the measurement report, and then measure SCell2 during the subsequent measurement cycle to meet the sample number requirement for deriving the measurement report.

[0050] As described above, in the case where UE 210 needs a time period for switching between measurements on SCell1 and SCell2, if the overlapping state is that the active periods of SCell1 and SCell 2 are separated in time by a distance less than a threshold, UE 210 can perform measurements on SCell 1 and SCell 2 during these active periods in an alternating manner.

[0051] refer to Figure 3BIn operation 335, the UE 210 may set the value of the CSSF according to the number of the plurality of SCells, wherein the determined overlapping state is that the activity periods of the plurality of SCells at least partially overlap. Figure 1 In the scenario shown in , if the active periods of SCell2 are active periods 120' and 125' instead of active periods 120 and 125, UE 210 may set the value of CSSF to two, ie, CSSF=2, because the active periods in SCell1 and SCell2 at least partially overlap.

[0052] In the case where UE 210 needs to switch between measurements on SCell1 and SCell2 as described above, in operation 335, if the overlapping state is that the active periods of multiple SCells are separated in time by a distance less than a threshold, UE 210 may set the value of CSSF according to the number of multiple SCells.

[0053] Then, operation 220 may be performed as Figure 3B The operation 340 in , where the UE 210 may determine the measurement delay based on the value of the CSSF. For example, the measurement delay may be amplified by the CSSF, for example, doubled if CSSF=2.

[0054] Then, operation 225 can be performed as Figure 3B The operation 345 in the embodiment may be performed, where the UE 210 may perform measurements on SCell1 and SCell2 during the active period within the determined measurement delay in an alternating manner.

[0055] Those skilled in the art will appreciate that the network side may learn about the UE behavior by receiving a message from the UE, making inferences based on the message from the UE, and / or based on specifications in the standard.

[0056] Figure 4 A flow chart illustrating an example method 400 for measuring multiple SCells according to an example embodiment of the present disclosure is shown. The example method 400 may be performed, for example, by an apparatus for a terminal device such as the UE 210 mentioned above.

[0057] refer to Figure 4 , the example method 400 may include: operation 410, receiving a DTX configuration for respectively defining active periods and inactive periods of multiple SCells; operation 420, determining an overlapping state of active periods of multiple SCell cells; operation 430, determining a measurement delay for measuring multiple SCells based on the determined overlapping state of active periods of multiple SCells; and operation 440, measuring multiple SCells within the measurement delay.

[0058] The details of operation 410 have been described above at least with respect to the cell DTX configurations 260 - 1 and 260 - 2 , and a repeated description thereof is omitted here.

[0059] The details of operation 420 have been described above at least with respect to operation 215 , and a repeated description thereof is omitted here.

[0060] The details of operation 430 have been described above at least with respect to operation 220 , and a repeated description thereof is omitted here.

[0061] The details of operation 440 have been described above at least with respect to operation 225 , and a repeated description thereof is omitted here.

[0062] In some embodiments, the example method 400 may include receiving corresponding activation signaling from multiple SCells to activate operations configured for DTX.More details have been described at least about the activation signals 265-1 and 265-2 in the above description, and repeated description thereof is omitted here.

[0063] In some embodiments, the example method 400 may include the following operations: if the determined overlapping state is that the activity periods of multiple SCells are separated in time, performing measurements on each SCell during the activity period in a non-interfering manner so that the measurement on one SCell is not delayed by the measurement on another SCell. Figure 1 More details have been described in the description of operation 215, and repeated description thereof is omitted here.

[0064] In some embodiments, if the determined overlapping state is that the activity periods of multiple SCells are separated in time by a distance greater than a threshold, the example method 400 may include an operation of performing measurements in each SCell in a non-interfering manner during the activity period. Figure 1 , operation 215 and threshold 360 have been described in more detail, and their repeated description is omitted here.

[0065] In some embodiments, the threshold value may be predefined or configured by the network device.More details have been described at least about the threshold value 360 ​​and the operation 355 in the above description, and a repeated description thereof is omitted here.

[0066] In some embodiments, the example method 400 may include the following operations: transmitting an indication to the network device indicating a time period for switching between measurements on the SCell. More details have been described above for at least the indication 315, and repeated description thereof is omitted here.

[0067] In some embodiments, the example method 400 may include the following operations: if the measurement on each SCell unit during the active period is performed in a non-interfering manner, performing the measurement on each SCell unit during the active period in one measurement cycle. Figure 1 More details have been described in the description of , and their repeated description is omitted here.

[0068] In some embodiments, the example method 400 may include the following operations: when performing measurements on each SCell during the active period in a non-interference manner, the MO of multiple SCells is counted as one frequency layer, and the measurement delay may be determined based on the number of frequency layers. More details have been described above at least with respect to operations 320 and 325, and a repeated description thereof is omitted here.

[0069] In some embodiments, the example method 400 may include the following operations: if the determined overlapping state is that the activity periods of multiple SCells at least partially overlap, performing measurements on each SCell during the activity period in an alternating manner, such that measurements on one SCell are delayed due to measurements on another SCell. Figure 1 More details have been described in the description of operation 215, and repeated description thereof is omitted here.

[0070] In some embodiments, the example method 400 may include the following operations: setting a value of the CSSF according to the number of the plurality of SCells, wherein the determined overlapping state is that the activity periods of the plurality of SCells at least partially overlap, and a measurement delay may be determined based on the value of the CSSF, and measurements may be performed on the plurality of SCcells in an alternating manner during the activity period within the determined measurement delay. More details have been described above at least with respect to operations 335, 340, and 345, and a repeated description thereof is omitted here.

[0071] In some embodiments, at least one of the following may be measured in multiple SCells: CSI-RS or SSB.

[0072] Figure 5 A flow chart illustrating an example method 500 for measuring multiple SCells according to an example embodiment of the present disclosure is shown. The example method 500 may be performed, for example, by an apparatus for a network device such as the network device 250 described above.

[0073] refer to Figure 5, the example method 500 may include: operation 510, transmitting a configuration for DTX to a terminal device served by the network device, which respectively defines active periods and inactive periods of multiple SCells associated with the network device, wherein the active periods of the multiple secondary cells are separated in time.

[0074] The details of operation 510 have been described above at least with respect to the cell DTX configurations 260 - 1 and 260 - 2 , and a repeated description thereof is omitted here.

[0075] In some embodiments, the example method 500 may include the following operations: configuring a threshold for the terminal device to determine whether the overlapping state of the activity periods of multiple SCells is that the activity periods of multiple SCells are separated in time by a distance greater than the threshold. More details have been described in the above description at least about operations 215 and 355 and threshold 360, and repeated descriptions thereof are omitted here.

[0076] In some embodiments, the example method 500 may include the following operations: receiving an indication from a terminal device indicating a time period for switching between measurements on the SCell, and determining a configuration for discontinuous transmission based on the time period. More details have been described in the above description at least about the indication 315 and the cell DTX configurations 260-1 and 260-2, and their repeated description is omitted here.

[0077] Figure 6 A block diagram showing an example apparatus 600 for measuring multiple SCells according to an example embodiment of the present disclosure is shown. For example, the apparatus may be at least a part of an apparatus for a terminal device such as the UE 210 in the above example.

[0078] like Figure 6 As shown in FIG. 6 , the example apparatus 600 may include at least one processor 610 and at least one memory 620 that may store instructions 630. When the instructions 630 are executed by the at least one processor 610, the apparatus 600 may be caused to perform at least the example method 400 described above.

[0079] In various example embodiments, the at least one processor 610 in the example device 600 may include, but is not limited to, at least one hardware processor, including at least one microprocessor such as a central processing unit (CPU), a portion of at least one hardware processor, and any other suitable special-purpose processor, such as a special-purpose processor developed based on, for example, a field programmable gate array (FPGA) and an application-specific integrated circuit (ASIC). In addition, the at least one processor 610 may also include Figure 6 At least one other circuit or component not shown.

[0080] In various example embodiments, at least one memory 620 in the example device 600 may include at least one storage medium in various forms, such as temporary memory and / or non-temporary memory. Temporary memory may include, but is not limited to, for example, random access memory (RAM), cache, etc. Non-temporary memory may include, but is not limited to, read-only memory (ROM), hard disk, flash memory, etc. The term "non-temporary" as used herein is a limitation on the medium itself (i.e., tangible rather than a signal), rather than a limitation on the persistence of data storage (e.g., RAM versus ROM). In addition, at least memory 620 may include, but is not limited to, electrical, magnetic, optical, electromagnetic, infrared, or semiconductor systems, devices or devices, or any combination of the above.

[0081] Furthermore, in various example embodiments, the example apparatus 600 may further include at least one other circuit, element, and interface, such as at least one I / O interface, at least one antenna element, and the like.

[0082] In various example embodiments, the circuits, components, elements, and interfaces in the example device 600 including at least one processor 610 and at least one memory 620 may be coupled together in any suitable manner, such as electrically, magnetically, optically, electromagnetically, etc., via any suitable connection including, but not limited to, buses, crossbar switches, wiring, and / or wireless lines.

[0083] It should be understood that the structure of the device on the UE 210 side is not limited to the above-mentioned example apparatus 600.

[0084] Figure 7 A block diagram illustrating an example apparatus 700 for measuring multiple SCells according to an example embodiment of the present disclosure is shown. For example, the apparatus may be at least a portion of an apparatus for a network device such as the network device 250 in the above example.

[0085] like Figure 7 As shown in FIG. 7 , the example apparatus 700 may include at least one processor 710 and at least one memory 720 that may store instructions 730. When the instructions 730 are executed by the at least one processor 710, the apparatus 700 may be caused to perform at least the example method 500 described above.

[0086] In various example embodiments, the at least one processor 710 in the example device 700 may include, but is not limited to, at least one hardware processor, including at least one microprocessor such as a central processing unit (CPU), a portion of at least one hardware processor, and any other suitable special-purpose processor, such as a special-purpose processor developed based on, for example, a field programmable gate array (FPGA) and an application-specific integrated circuit (ASIC). In addition, the at least one processor 710 may also include Figure 7At least one other circuit or component not shown.

[0087] In various example embodiments, at least one memory 720 in the example device 700 may include at least one storage medium in various forms, such as temporary memory and / or non-temporary memory. Temporary memory may include, but is not limited to, for example, random access memory (RAM), cache, etc. Non-temporary memory may include, but is not limited to, read-only memory (ROM), hard disk, flash memory, etc. The term "non-temporary" as used herein is a limitation on the medium itself (i.e., tangible rather than a signal), rather than a limitation on the persistence of data storage (e.g., RAM versus ROM). In addition, at least memory 720 may include, but is not limited to, electrical, magnetic, optical, electromagnetic, infrared, or semiconductor systems, devices or devices, or any combination of the above.

[0088] Furthermore, in various example embodiments, the example apparatus 700 may further include at least one other circuit, element, and interface, such as at least one I / O interface, at least one antenna element, and the like.

[0089] In various example embodiments, the circuits, components, elements, and interfaces in the example device 700 including at least one processor 710 and at least one memory 720 may be coupled together in any manner, such as electrically, magnetically, optically, electromagnetically, etc., via any suitable connection including, but not limited to, buses, crossbar switches, wiring, and / or wireless lines.

[0090] It should be understood that the structure of the device on the network device 250 side is not limited to the above-mentioned example device 700.

[0091] Figure 8 A block diagram illustrating an example device 800 for measuring multiple SCells according to an example embodiment of the present disclosure is shown. For example, the device may be at least a part of a terminal device such as the UE 210 in the above example.

[0092] like Figure 8 As shown in , the example device 800 may include: a device 810 for receiving a DTX configuration for respectively defining active periods and inactive periods of multiple SCells; a device 820 for determining an overlapping state of active periods of multiple SCell cells; a device 830 for determining a measurement delay for measuring multiple SCells based on the determined overlapping state of active periods of multiple SCells; and a device 840 for measuring multiple SCells within the measurement delay.

[0093] In some embodiments, the apparatus 800 may include means for receiving corresponding activation signaling from a plurality of SC cells to activate a configuration for DTX.

[0094] In some embodiments, the device 800 may include a device for performing measurements on each SCell in a non-interference manner during the active period if the determined overlapping state is that the active periods of multiple SCells are separated in time, so that the measurement on one SCell is not delayed due to the measurement on another SCell.

[0095] In some embodiments, the apparatus 800 may include means for performing measurements on each SCell in a non-interfering manner during the active period if the determined overlapping state is that the active periods of the plurality of SCells are separated in time by a distance greater than a threshold.

[0096] In some embodiments, the threshold may be predefined or configured by the network device.

[0097] In some embodiments, the apparatus 800 may include means for transmitting to a network device an indication indicating a time period for switching between measurements on the SCell.

[0098] In some embodiments, the apparatus 800 may include means for performing measurements on each SCell during the active period in one measurement cycle if the measurements on each SCell during the active period are performed in a non-interference manner.

[0099] In some embodiments, the apparatus 800 may include means for counting MOs of a plurality of SCells as one frequency layer when performing measurements in a non-interference manner on each SCell during an active period, and may determine a measurement delay based on the number of frequency layers.

[0100] In some embodiments, the device 800 may include means for performing measurements on each SCell during the active period in an alternating manner if the determined overlapping state is that the active periods of multiple SCells at least partially overlap, so that measurements on one SCell are delayed due to measurements on another SCell.

[0101] In some embodiments, the device 800 may include a device for setting a value of the CSSF based on the number of multiple SCells, wherein the determined overlapping state is that the active periods of the multiple SCells at least partially overlap, and a measurement delay may be determined based on the value of the CSSF, and measurements may be performed on the multiple SCells during the active period in an alternating manner within the determined measurement delay.

[0102] In some embodiments, at least one of the following may be measured in multiple SCells: CSI-RS or SSB.

[0103] In some example embodiments, examples of means in example device 800 may include circuitry. For example, examples of means 810 may include circuitry configured to perform operation 410 of example method 400, examples of means 820 may include circuitry configured to perform operation 420 of example method 400, examples of means 830 may include circuitry configured to perform operation 430 of example method 400, and examples of means 840 may include circuitry configured to perform operation 440 of example method 400.

[0104] The example apparatus 800 may also include an apparatus including circuitry configured to perform the example method 400. In some example embodiments, examples of apparatus may also include software modules and any other suitable functional entities.

[0105] Fig. 9 A block diagram illustrating an example device 900 for measuring multiple SCells according to an example embodiment of the present disclosure is shown. For example, the device may be at least a portion of a network device such as the network device 250 in the above example.

[0106] like Fig. 9 As shown in , the example device 900 may include: a device 910 for transmitting a configuration for DTX to a terminal device served by the network device, which respectively defines active periods and inactive periods of multiple SCells associated with the network device, wherein the active periods of multiple secondary cells are separated in time.

[0107] In some embodiments, the device 900 may include means for configuring a threshold for the terminal device to determine whether the overlapping state of the activity periods of the multiple SCells is that the activity periods of the multiple SCells are separated in time by a distance greater than the threshold.

[0108] In some embodiments, the apparatus 900 may include means for receiving an indication from a terminal device indicating a time period for switching between measurements on the SCell, and may determine a configuration for discontinuous transmission based on the time period.

[0109] In some example embodiments, an example of means in the example apparatus 900 may include circuitry. For example, an example of means 910 may include circuitry configured to perform operation 510 of the example method 500.

[0110] The example apparatus 900 may also include an apparatus including circuitry configured to perform the example method 500. In some example embodiments, examples of an apparatus may also include software modules and any other suitable functional entities.

[0111] The example embodiments of the present disclosure also provide a computer-readable medium comprising program instructions, which, when executed by an apparatus for a terminal device (such as UE 210 in the above example), enables the terminal device to at least: receive a configuration for DTX for respectively defining active periods and inactive periods of multiple SCells; determine an overlapping state of the active periods of the multiple SCell cells; determine a measurement delay for measuring multiple SCells based on the determined overlapping state of the active periods of the multiple SCells; and measure the multiple SCells within the measurement delay.

[0112] In some embodiments, the computer-readable medium may include instructions, which, when executed by the apparatus, may cause the terminal device to: receive corresponding activation signaling from multiple SCells to activate the configuration for DTX.

[0113] In some embodiments, the computer-readable medium may include instructions that, when executed by the apparatus, may cause the terminal device to: if the determined overlapping state is that the active periods of multiple SCells are separated in time, perform measurements on each SCell during the active period in a non-interference manner, so that the measurement on one SCell is not delayed due to the measurement on another SCell.

[0114] In some embodiments, the computer-readable medium may include instructions that, when executed by the apparatus, may cause the terminal device to: if the determined overlapping state is that the active periods of multiple SCells are separated in time by a distance greater than a threshold, then perform measurements on each SCell during the active period in a non-interference manner.

[0115] In some embodiments, the threshold may be predefined or configured by the network device.

[0116] In some embodiments, the computer-readable medium may include instructions which, when executed by the apparatus, may cause the terminal device to: transmit to the network device an indication indicating a time period for switching between measurements on the respective SCells.

[0117] In some embodiments, the computer-readable medium may include instructions that, when executed by the apparatus, may cause the terminal device to: if measurements are performed on each SCell during the active period in a non-interference manner, perform measurements on each SCell during the active period within a measurement cycle.

[0118] In some embodiments, the computer-readable medium may include instructions that, when executed by the apparatus, cause the terminal device to: count the MOs of multiple SCells as one frequency layer when performing measurements on each SCell during an active period in a non-interference manner, and determine the measurement delay based on the number of frequency layers.

[0119] In some embodiments, the computer-readable medium may include instructions that, when executed by the apparatus, may cause the terminal device to: if the determined overlapping state is that the active periods of multiple SCells at least partially overlap, perform measurements on each SCell during the active period in an alternating manner, so that the measurement on one SCell is delayed due to the measurement on another SCell.

[0120] In some embodiments, a computer-readable medium may include instructions that, when executed by an apparatus, may cause a terminal device to: set a value of CSSF according to the number of multiple SCells, wherein a determined overlapping state is that the active periods of multiple SCells at least partially overlap, and a measurement delay may be determined based on the value of the CSSF, and measurements may be performed on multiple SCcells during the active period in an alternating manner within the determined measurement delay.

[0121] In some embodiments, at least one of the following may be measured in multiple SCells: CSI-RS or SSB.

[0122] Each example embodiment of the present disclosure also provides a computer-readable medium including program instructions, which, when executed by an apparatus for a network device such as the network device 250 in the above example, enables the network device to at least: transmit a configuration for DTX to a terminal device served by the network device, which respectively defines active periods and inactive periods of multiple SCells associated with the network device, wherein the active periods of multiple secondary cells are separated in time.

[0123] In some embodiments, the computer-readable medium may include instructions that, when executed by a device, may cause the network device to: configure a threshold for the terminal device to determine whether the overlapping state of the active periods of multiple SCells is that the active periods of multiple SCells are separated in time by a distance greater than the threshold.

[0124] In some embodiments, the computer-readable medium may include instructions that, when executed by the apparatus, may cause the network device to receive an indication from the terminal device indicating a time period for switching between measurements on the SCell, and may determine a configuration for discontinuous transmission based on the time period.

[0125] As used herein, “at least one of: ” and “at least one of <a list of two or more elements]” and similar expressions, where a list of two or more elements is connected by “and” or “or”, mean at least any one element, or at least any two or more elements, or at least all elements.

[0126] 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 cell 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 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 device, a head-mounted display (HMD), a vehicle, a drone, medical equipment and applications (e.g., remote surgery), industrial equipment and applications (e.g., robots and / or other wireless devices operating in industrial and / or automated processing chain environments), consumer electronic devices, devices operating on commercial and / or industrial wireless networks, etc. The terminal device may also correspond to the mobile terminal (MT) part of an IAB node (eg, a relay node).In the above description, the terms "terminal device", "communication device", "terminal", "user equipment" and "UE" are used interchangeably.

[0127] The term "circuitry" throughout this disclosure may refer to one or more or all of the following: (a) hardware-only implementations of circuits (such as implementations in analog and / or digital circuits only); (b) combinations of hardware circuits and software, such as (i) combinations of analog and / or digital hardware circuits and software / firmware, as applicable, and (ii) hardware processors and software (including digital signal processors), software, and any portion of 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 microprocessors or portions of microprocessors, that require software (e.g., firmware) to operate, but where software is not required for operation, the software may not be present. This definition of circuitry applies to this disclosure, including one or all uses of the term in any claim. As a further example, as used in this disclosure, the term circuitry also encompasses implementations of hardware circuits or processors (or multiple processors) or portions of hardware circuits or processors and their (or their) accompanying software and / or firmware. The term circuitry also covers, for example and if applicable to the claimed element, a baseband integrated circuit or processor integrated circuit for a mobile device or a similar integrated circuit in a server, cellular network equipment, or other computing or networking equipment.

[0128] Another example embodiment may involve computer program code or instructions that can cause an apparatus to perform at least each of the above methods. Another example embodiment may involve a computer readable medium having such computer program code or instructions stored thereon. In some example embodiments, such a computer readable medium may include at least one storage medium in various forms, such as volatile memory and / or non-volatile memory. Volatile memory may include, but is not limited to, for example, RAM, cache, etc. Non-volatile memory may include, but is not limited to, ROM, hard disk, flash memory, etc. Non-volatile memory may also include, but is not limited to, electrical, magnetic, optical, electromagnetic, infrared or semiconductor systems, devices, or devices or any combination of the above.

[0129] Unless the context clearly requires otherwise, throughout the specification and claims, the words "comprise", "including", and the like are to be interpreted in an inclusive rather than an exclusive or exhaustive sense; that is, in the sense of "including but not limited to". As generally used herein, the word "coupled" refers to two or more elements that can be directly connected or connected through one or more intermediate elements. Similarly, as generally used herein, the word "connected" refers to two or more elements that can be directly connected or connected through one or more intermediate elements. In addition, the words "herein", "above", "below", and words of similar meaning as used in this application shall refer to the entirety of this application and not to any particular part of this application. Where the context permits, words used in the specification in the singular or plural may also include the plural or singular, respectively. The word "or" refers to a list of two or more items, and the word covers all of the following interpretations of the word: any item in the list, all items in the list, and any combination of items in the list.

[0130] Furthermore, conditional language used herein, such as "may," "could," "might," "likely," "for example," "for example," "such as," and the like, unless otherwise specifically noted or otherwise understood in the context of use, is generally intended to convey that certain embodiments include, while other embodiments do not include, certain features, elements, and / or states. Thus, such conditional language generally does not imply that features, elements, and / or states are in any way required by one or more embodiments, or that one or more embodiments necessarily include logic for determining, with or without author input or prompting, whether such features, elements, or states are included or will be performed in any particular embodiment.

[0131] As used herein, the term "determining" (and grammatical variations thereof) may include at least the following: calculating, computing, processing, deriving, measuring, investigating, searching (e.g., searching in a table, database, or other data structure), confirming, etc. In addition, "determining" may include receiving (e.g., receiving information), accessing (e.g., accessing data in a memory), obtaining, etc. In addition, "determining" may include resolving, selecting, choosing, establishing, etc.

[0132] Although some embodiments have been described, these embodiments are presented by way of example and are not intended to limit the scope of the present disclosure. In fact, the devices, methods, and systems described herein may be embodied in various other forms; in addition, various omissions, substitutions, and changes may be made to the forms of the methods and systems described herein without departing from the spirit of the present disclosure. For example, although the blocks are presented in a given arrangement, alternative embodiments may utilize different components and / or circuit topologies to perform similar functions, and some blocks may be deleted, moved, added, subdivided, combined, and / or modified. At least one of these blocks may be implemented in various different ways. The order of these blocks may also be changed. Any suitable combination of the elements and actions of some of the above-described embodiments may be combined to provide further embodiments. The attached claims and their equivalents are intended to cover such forms or modifications that fall within the scope and spirit of the present disclosure. The abbreviations used in the specification and / or drawings are defined as follows:

[0133] CSI-RS Channel State Information Reference Signal

[0134] CSSF Carrier Specific Scaling Factor

[0135] DRX Discontinuous Reception

[0136] DTX Discontinuous Transmission

[0137] MO measurement object

[0138] NES Network Energy Saving

[0139] NW Network

[0140] PBCH Physical Broadcast Channel

[0141] PCell Primary Cell

[0142] RRC Radio Resource Control

[0143] SCell Secondary Cell

[0144] SSB Synchronous Signal Block

[0145] Synchronization signal and PBCH block

[0146] UE User Equipment

Claims

1. A device for a terminal device, comprising: at least one processor; as well as at least one memory storing instructions, which, when executed by the at least one processor, causes the terminal device to at least: receiving a configuration for discontinuous transmission respectively defining an active period and an inactive period of a plurality of secondary cells; determining an overlapping state of the activity periods of the plurality of secondary cells; determining, based on the determined overlapping states of the activity periods of the plurality of secondary cells, a measurement delay for measuring the plurality of secondary cells; as well as The plurality of secondary cells are measured within the measurement delay.

2. The device according to claim 1, wherein: The device is configured to: Respective activation signaling is received from the plurality of secondary cells to activate the configuration for the discontinuous transmission.

3. The device according to claim 1 or 2, wherein: The device is configured to: If the determined overlapping state is that the active periods of the plurality of secondary cells are separated in time, performing the measurements on the respective secondary cells during the active periods in a non-interfering manner so that measurements on one secondary cell are not delayed by measurements on another secondary cell.

4. The device as claimed in claim 3, wherein: The device is configured to: If the determined overlapping state is that the activity periods of the plurality of secondary cells are separated in time by a distance greater than a threshold, performing the measurements on the respective secondary cells during the activity periods in the non-interference manner.

5. The device as claimed in claim 4, wherein The threshold is predefined or configured by the network device.

6. The device according to claim 4 or 5, wherein: The device is configured to: An indication is transmitted to a network device indicating a time period for switching between the measurements on the respective secondary cells.

7. The device according to any one of claims 3 to 6, wherein: The device is configured to: If the measurements are performed on the respective secondary cells during the active period in the non-interference manner, the measurements are performed on the respective secondary cells during the active period within one measurement cycle.

8. The device according to any one of claims 3 to 7, wherein: The device is configured to: When performing the measurement on each of the secondary cells during the active period in the non-interference manner, counting the measurement objects of the plurality of secondary cells as one frequency layer, and The measured delay is determined based on the number of frequency layers.

9. The device according to claim 1 or 2, wherein: The device is configured to: If the determined overlapping state is that the activity periods of the plurality of secondary cells at least partially overlap, performing the measurements on the respective secondary cells during the activity periods in an alternating manner such that the measurements on one secondary cell are delayed due to the measurements on another secondary cell.

10. The device of claim 9, wherein: The device is configured to: setting a value of a carrier specific scaling factor according to the number of the plurality of secondary cells, wherein the determined overlapping state is that the activity periods of the plurality of secondary cells at least partially overlap, and determining the measurement delay based on a value of the carrier specific scaling factor, and The measurements are performed on the plurality of secondary cells during the active period in the alternating manner within the determined measurement delay.

11. The device according to any one of claims 1 to 10, wherein: Measuring at least one of the following among the multiple secondary cells: Channel State Information Reference Signal, or Synchronous signal block.

12. An apparatus for a network device, 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 network device to at least: transmitting a configuration for discontinuous transmission to a terminal device served by the network device, which respectively defines an active period and an inactive period of a plurality of secondary cells associated with the network device, wherein The activity periods of the plurality of secondary cells are separated in time.

13. The device of claim 12, wherein: The device is configured to: A threshold value for the terminal device is configured to determine whether the overlapping state of the activity periods of the multiple secondary cells is that the activity periods of the multiple secondary cells are separated in time by a distance greater than the threshold value.

14. The device of claim 13, wherein: The device is configured to: receiving from the terminal device an indication of a time period for switching between measurements on the respective secondary cells, and The configuration for the discontinuous transmission is determined based on the time period.

15. A method performed by an apparatus for a terminal device, comprising: receiving a configuration for discontinuous transmission respectively defining an active period and an inactive period of a plurality of secondary cells; determining an overlapping state of the activity periods of the plurality of secondary cells; determining, based on the determined overlapping states of the activity periods of the plurality of secondary cells, a measurement delay for measuring the plurality of secondary cells; as well as The plurality of secondary cells are measured within the measurement delay.

16. The method of claim 15, comprising: Respective activation signaling is received from the plurality of secondary cells to activate the configuration for the discontinuous transmission.

17. The method of claim 15 or 16, comprising: If the determined overlapping state is that the active periods of the plurality of secondary cells are separated in time, performing the measurements on the respective secondary cells during the active periods in a non-interfering manner so that measurements on one secondary cell are not delayed by measurements on another secondary cell.

18. The method of claim 17, comprising: If the determined overlapping state is that the activity periods of the plurality of secondary cells are separated in time by a distance greater than a threshold, performing the measurements on the respective secondary cells during the activity periods in the non-interference manner.

19. The method of claim 18, wherein The threshold is predefined or configured by the network device.

20. The method of claim 18 or 19, comprising: An indication is transmitted to a network device indicating a time period for switching between measurements on the respective secondary cells.

21. The method of any one of claims 17 to 20, comprising: If the measurements are performed on the respective secondary cells during the active period in the non-interference manner, the measurements are performed on the respective secondary cells during the active period within one measurement cycle.

22. The method of any one of claims 17 to 21, comprising: When performing the measurement on each of the secondary cells during the active period in the non-interference manner, the measurement objects of the plurality of secondary cells are counted as one frequency layer, wherein The measured delay is determined based on the number of frequency layers.

23. The method of claim 15 or 16, comprising: If the determined overlapping status is that the activity periods of the plurality of secondary cells at least partially overlap, performing the measurements on the respective secondary cells during the activity periods in an alternating manner such that the measurements on one secondary cell are delayed due to the measurements on another secondary cell.

24. The method of claim 23, comprising: The value of the carrier-specific scaling factor is set according to the number of the plurality of secondary cells, wherein the determined overlapping state is that the activity periods of the plurality of secondary cells at least partially overlap, The measurement delay is determined based on a value of the carrier specific scaling factor, and Measurements on a plurality of secondary cells are performed during the active period in the alternating manner within the determined measurement delay.

25. The method of any one of claims 15 to 24, wherein: Measuring at least one of the following of the multiple secondary cells: Channel State Information Reference Signal, or Synchronous signal block.

26. A method performed by an apparatus for a network device, comprising: transmitting a configuration for discontinuous transmission to a terminal device served by the network device, which respectively defines an active period and an inactive period of a plurality of secondary cells associated with the network device, wherein The activity periods of the plurality of secondary cells are separated in time.

27. The method of claim 26, comprising: A threshold value for the terminal device is configured to determine whether the overlapping state of the activity periods of the multiple secondary cells is that the activity periods of the multiple secondary cells are separated in time by a distance greater than the threshold value.

28. The method of claim 27, comprising: receiving, from the terminal device, an indication of a time period for switching between measurements on the respective secondary cells, wherein The configuration for the discontinuous transmission is determined based on the time period.

29. A computer readable medium comprising instructions for causing an apparatus to perform at least the method according to any one of claims 15-28.

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