User equipment and method for performing cell measurements

Abstract

The present application provides a user equipment, wherein the user equipment comprises a wireless transceiver and a controller. The wireless transceiver transmits and receives wirelessly to and from a serving network. The controller receives a measurement configuration and a discontinuous reception configuration from the serving network via the wireless transceiver, wherein the measurement configuration comprises SMTC; obtains a first measurement period based on the SMTC; extends the first measurement period to obtain a second measurement period based on the discontinuous reception configuration; and performs a cell measurement via the wireless transceiver in the second measurement period. By using the present application, the cell measurement can be performed better.

Description

[0001] This application is a divisional application of the invention patent filed on January 10, 2019, with application number "201980000835.8", international application number "PCT / CN2019 / 071105", and titled "User Equipment and Method for Performing Cell Measurement". Technical Field

[0002] The present invention relates generally to wireless communication, and more particularly to apparatus and methods for performing cell measurements. Background Technology

[0003] With the growing demand for ubiquitous computing and networking, various wireless technologies have been developed, including Global System for Mobile Communications (GSM), General Packet Radio Service (GPRS), Enhanced Data Rates for Global Evolution (EDGE), Wideband Code Division Multiple Access (WCDMA), Code Division Multiple Access (CDMA) 2000, Time Division-Synchronous Code Division Multiple Access (TD-SCDMA), Worldwide Interoperability for Microwave Access (WiMAX), Long Term Evolution (LTE), Time-Division LTE (TD-LTE), and LTE-Advanced (LTE-A).

[0004] The aforementioned wireless technologies have already been adopted in various telecommunications standards to provide a common protocol, enabling different wireless devices to communicate at the city, national, regional, and even global levels. An example of an emerging telecommunications standard is 5th Generation (5G) New Radio (NR). 5G NR is a series of enhancements to the LTE mobile standard released by the Third Generation Partnership Project (3GPP). 5G NR is designed to better support mobile broadband internet access by improving spectrum efficiency, reducing costs, and enhancing service.

[0005] For 5G NR User Equipment (UE), there are two operations that require the UE to frequently turn the radio transceiver on and off. These operations may include Discontinuous Reception (DRX) operations and cell measurements for Radio Resource Management (RRM). Specifically, cell measurements can be configured via SSB-based RRM Measurement Timing Configuration (SMTC). That is, cell measurements can be performed by measuring the signal quality of the SSB. Because the SSB is a broadcast signal and DRX configuration is UE-specific, aligning the Measurement Occasion (MO) with the DRX ON timing for each UE is nearly impossible. Therefore, misalignment of the MO and DRX ON timing can significantly increase UE power consumption. Summary of the Invention

[0006] A user equipment for performing cell measurements includes: a radio transceiver configured to wirelessly transmit to and receive from a serving network; and a controller configured to: receive, via the radio transceiver, a measurement configuration and a discontinuous reception configuration from the serving network, wherein the measurement configuration includes a radio resource management measurement timing configuration based on a synchronization block; obtain a first measurement period based on the synchronization block-based radio resource management measurement timing configuration; extend the first measurement period based on the discontinuous reception configuration to obtain a second measurement period; and perform the cell measurement via the radio transceiver during the second measurement period.

[0007] A method for performing cell measurements, performed by a user equipment (UE), the UE including a radio transceiver, the method comprising: receiving, via the radio transceiver, a measurement configuration and a discontinuous reception configuration from a serving network, wherein the measurement configuration includes a radio resource management (RRM) measurement timing configuration based on a synchronization block; obtaining a first measurement period based on the synchronization block-based RRM measurement timing configuration; extending the first measurement period based on the discontinuous reception configuration to obtain a second measurement period; and performing the cell measurements via the radio transceiver during the second measurement period.

[0008] By utilizing this invention, cell measurement can be performed more effectively.

[0009] Other aspects and features of the invention will become apparent to those skilled in the art from the following description of specific embodiments of the UE and method for performing cell measurements. Attached Figure Description

[0010] A fuller understanding of the invention can be achieved by referring to the following detailed description and examples with reference to the accompanying drawings, in which:

[0011] Figure 1 This is a block diagram of a wireless communication environment according to an embodiment of the present invention.

[0012] Figure 2 This is a block diagram illustrating a UE 110 according to an embodiment of the present invention.

[0013] Figure 3 This is a flowchart illustrating a method for performing cell measurement according to an embodiment of the present invention.

[0014] Figure 4A This is a schematic diagram illustrating the time difference between MO and the DRX ON timing prior to MO.

[0015] Figure 4B This is a schematic diagram illustrating the time difference between MO and the DRX ON timing after MO.

[0016] Figure 5 This is a schematic diagram illustrating, according to an embodiment of the present invention, the determination of MOs that can be skipped during an extended measurement period. Detailed Implementation

[0017] The following description is intended to illustrate the general principles of the invention and should not be considered limiting. It will be understood that these embodiments may be implemented in software, hardware, firmware, or a combination thereof. When the terms "comprising," "including," "containing," and / or "having" are used in this invention, it indicates the presence of the stated features, integers, steps, operations, elements, and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or combinations thereof.

[0018] Figure 1 This is a block diagram of a wireless communication environment according to an embodiment of the present invention.

[0019] like Figure 1 As shown, the wireless communication environment 100 may include a UE 110 and a serving network 120, wherein the UE 110 can wirelessly connect to the serving network 120 to obtain mobile services and perform cell measurements on the cells of the serving network 120.

[0020] UE 110 can be a feature phone, smartphone, panel PC, laptop, or any wireless communication device supporting the wireless technology (such as 5G NR technology) used by the service network 120. In another embodiment, UE 110 can support more than one wireless technology. For example, the UE can support 5G NR technology and traditional fourth-generation (4G) technologies (such as LTE / LTE-A / TD-LTE technologies).

[0021] Service network 120 may include access network 121 and core network 122. Access network 121 is responsible for processing radio signals, terminating radio protocols, and connecting UE 110 to core network 122. Core network 122 is responsible for performing mobility management, network-side authentication, and interface with public / external networks (such as the Internet). Each of access network 121 and core network 122 may include one or more network nodes to perform the above functions.

[0022] In one embodiment, the serving network 120 may be a 5G NR network, the access network 121 may be a radio access network (RAN), and the core network 122 may be a next-generation core network (NG-CN).

[0023] A RAN can contain one or more cellular stations, such as Next Generation NodeBs (gNBs), where gNBs can support high-frequency bands (e.g., above 24 GHz), and each gNB can also contain one or more Transmission Reception Points (TRPs), where each gNB or TRP can be called a 5G cellular station. Some gNB functions can be distributed across different TRPs, while other functions can be centralized, leaving flexibility and scope for specific deployments to meet specific needs.

[0024] 5G cellular base stations can use different component carriers (CCs) to form one or more cells to provide mobile services to UE 110. For example, UE 110 can camp on one or more cells formed by one or more gNBs or TRPs, where the cell on which UE 110 camps can be called the serving cell, which can include a primary cell (Pcell) and one or more secondary cells (Scells).

[0025] NG-CN is generally composed of various network functions, including Access and Mobility Function (AMF), Session Management Function (SMF), Policy Control Function (PCF), Application Function (AF), Authentication Server Function (AUSF), User Plane Function (UPF), and User Data Management (UDM). Each network function can be implemented as a network element on dedicated hardware, as a software instance running on dedicated hardware, or as a virtualized function instantiated on an appropriate platform (such as cloud infrastructure).

[0026] The AMF provides UE-based authentication, authorization, and mobility management. The SMF is responsible for session management and allocating Internet Protocol (IP) addresses to the UE. The SMF can also select and control the UPF for data transfer. If the UE has multiple sessions, different SMFs can be assigned to each session to manage each session individually and potentially provide different functionalities for each session. The AF provides information about packet flows to the PCF to support Quality of Service (QoS), where the PCF is responsible for policy control. Based on the above information, the PCF can determine policies regarding mobility and session management to ensure the AMF and SMF operate appropriately. The AUSF stores data used for UE authentication, while the UDM stores the UE's subscription data.

[0027] In another embodiment, the serving network 120 may be an LTE / LTE-A / TD-LTE network, the access network 121 may be an Evolved-Universal Terrestrial Radio Access Network (E-UTRAN), and the core network 122 may be an Evolved Packet Core (EPC).

[0028] E-UTRAN may contain at least one cellular site, such as an evolved NodeB (eNB) (e.g., macro eNB, femto eNB, or pico eNB), each of which can form a cell to provide mobility services to UE 110. For example, UE 110 may camp on one or more cells formed by one or more eNBs, where the cell camped by UE 110 may be called the serving cell, which contains a Pcell and one or more Scells.

[0029] An EPC can include a Home Subscriber Server (HSS), a Mobility Management Entity (MME), a Serving Gateway (S-GW), and a Packet Data Network Gateway (PDN-GW or P-GW).

[0030] Understandably, in Figure 1The wireless communication environment 100 described in the embodiments is for illustrative purposes only and is not intended to limit the scope of the invention. For example, the wireless communication environment 100 may include a 5G NR network and a traditional network (such as an LTE / LTE-A / TD-LTE network or a WCDMA network), and the UE 110 may wirelessly connect to both the 5G NR network and the traditional network.

[0031] Figure 2 This is a block diagram illustrating a UE 110 according to an embodiment of the present invention.

[0032] like Figure 2 As shown, UE 110 may include a wireless transceiver 10, a controller 20, a storage device 30, a display device 40, and an input / output (I / O) device 50.

[0033] The wireless transceiver 10 is configured to wirelessly transmit to and receive from a cell, wherein the cell is formed by one or more cellular stations of the access network 121. Specifically, the wireless transceiver 10 may include a radio frequency (RF) device 11, a baseband processing device 12, and an antenna 13, wherein the antenna 13 may include one or more antennas for beamforming. The baseband processing device 12 is configured to perform baseband signal processing and control communication between a subscriber identity card (not shown) and the RF device 11. The baseband processing device 12 may include multiple hardware components to perform baseband signal processing, including analog-to-digital conversion (ADC) / digital-to-analog conversion (DAC), gain adjusting, modulation / demodulation, encoding / decoding, etc. RF device 11 can receive RF wireless signals via antenna 13, convert the received RF wireless signals into baseband signals, wherein the baseband signals are processed by baseband processing device 12, or receive baseband signals from baseband processing device 12 and convert the received baseband signals into RF wireless signals, wherein the RF wireless signals are then transmitted via antenna 13. RF device 11 may also include multiple hardware devices to perform radio frequency conversion. For example, RF device 11 may include a mixer to multiply the baseband signals with a carrier oscillated in the radio frequency of the supported cellular technology. Depending on the wireless technology used, the radio frequency may be any radio frequency used in 5G NR technology (e.g., 30 GHz to 300 GHz for millimeter wave), or it may be 900 MHz, 2100 MHz, or 2.6 GHz used in LTE / LTE-A / TD-LTE technology, or another radio frequency.

[0034] The controller 20 can be a general-purpose processor, a microcontroller (MCU), an application processor, a digital signal processor (DSP), a graphics processing unit (GPU), a holographic processing unit (HPU), or a neural processing unit (NPU), etc. The controller 20 can include various circuits to provide the following functions: data processing and calculation, controlling the wireless transceiver 10 to communicate wirelessly with the cell formed by the cellular base station of the access network 121, storing data (such as program code) to and retrieving data from the storage device 30, sending a series of frame data (such as text messages, graphics, images, etc.) to the display device 40, and receiving user input or output signals via the I / O device 50.

[0035] Specifically, the controller 20 coordinates the operation of the wireless transceiver 10, the storage device 30, the display device 40, and the I / O device 50 to perform a method for performing cell measurements.

[0036] In another embodiment, controller 20 may be incorporated into baseband processing device 12 to be used as a baseband processor.

[0037] As those skilled in the art will understand, the circuitry of controller 20 typically includes transistors, which, according to the functions and operations described in this invention, are configured to control the operation of the circuitry. As further understood, the specific structure or interconnections of the transistors can typically be determined by a compiler, such as a Register Transfer Language (RTL) compiler. An RTL compiler can be operated by a processor on a script very similar to assembly language code to compile the script into a form usable for layout or fabrication of the final circuitry. In fact, RTL is widely known for its role in facilitating the design process of electronic and digital systems.

[0038] Storage device 30 may be a non-provisional machine-readable storage medium, wherein the storage medium includes memory (such as flash memory or non-volatile random access memory, NVRAM), or magnetic storage device (such as hard disk or magnetic tape), or optical disk, or any combination thereof for storing data (such as measurement configuration, DRX configuration and / or measurement results), program code of instructions and / or applications, communication protocols and / or methods for performing cell measurements.

[0039] Display device 40 may be a liquid crystal display (LCD), a light-emitting diode (LED) display, an organic light-emitting diode (OLED) display, or an electronic paper display (EPD) to provide display functionality. Alternatively, display device 40 may also include one or more touch sensors disposed on or under it to sense the touch, contact, or proximity of an object (such as a finger or stylus).

[0040] I / O device 50 may include one or more buttons, keyboards, mice, touchpads, cameras, microphones and / or speakers, etc., as a human-machine interface (MMI) for interacting with users.

[0041] Understandably, in Figure 2 The components described in the embodiments are for illustrative purposes only and are not intended to limit the scope of the invention. For example, UE 110 may include more components, such as a power supply and / or a Global Positioning System (GPS) device, wherein the power supply may be a mobile / replaceable battery that powers all other components of UE 110, and the GPS device may provide location information of UE 110 for use by some location-based services or applications. Alternatively, UE 110 may include fewer components. For example, UE 110 may not include a display device 40 and / or I / O device 50.

[0042] Figure 3 This is a flowchart illustrating a method for performing cell measurement according to an embodiment of the present invention.

[0043] In this embodiment, the method for performing cell measurements can be performed by a UE (e.g., UE 110), wherein the UE includes a radio transceiver (e.g., radio transceiver 10).

[0044] First, the UE receives the measurement configuration and DRX configuration from the serving network via the radio transceiver (step S310).

[0045] Specifically, measurement configuration and DRX configuration can be included in Radio Resource Control (RRC) messages (such as RRC connection establishment messages or RRC connection reconfiguration messages), which can be sent to the UE by the serving network.

[0046] In one embodiment, the serving network may be a 5G NR network, and the measurement configuration may be an SMTC. The SMTC may include an MO (or "measurement window") offset, an MO duration (or "SMTC period"), and an MO period.

[0047] The DRX configuration may include information for configuring the DRX ON duration and DRX cycle. Because the information contained in the DRX configuration is outside the scope of this invention, and can be found in Release 15 (R15) of 3GPP Technical Specification (TS) 38.331, a detailed description of the aforementioned information is omitted in this invention. Please note that the 3GPP specifications mentioned in this invention are used to interpret the spirit of the invention, and the invention is not limited thereto.

[0048] Then, the UE determines whether the measurement configuration and DRX configuration are aligned in time (step S320).

[0049] In one embodiment, the UE can determine the time difference between the start of the MO and the end of the DRXON timing prior to the MO, based on the measurement configuration and DRX configuration (e.g., Figure 4A (as shown), or the time difference between the end of MO and the start of the DRX ON timing after MO (e.g. Figure 4B (As shown). If the time difference is greater than a predetermined threshold (e.g., a time slot in a 5G NR network), it can be determined that the measurement configuration and DRX configuration are misaligned in time. Otherwise, if the time difference is less than or equal to the predetermined threshold, it can be determined that the measurement configuration and DRX configuration are aligned in time. Alternatively, if the time difference is less than or equal to the predetermined threshold, the UE can repeat the same check at one or more upcoming MO and DRX ON times. If each of these checks shows a time difference less than or equal to the predetermined threshold, it can be determined that the measurement configuration and DRX configuration are aligned in time.

[0050] In another embodiment, the predetermined threshold can be set to zero, such that the measurement configuration and DRX configuration are always determined to be misaligned in time (i.e., the method flow always takes the "No" branch of step S320).

[0051] After step S320, if the measurement configuration and DRX configuration are not aligned in time, the UE may extend the measurement period indicated by the measurement configuration (step S330) and perform cell measurement via the radio transceiver during the extended measurement period (step S340), and the method may end.

[0052] In one embodiment, the serving network may be a 5G NR network, which may measure the signal quality (e.g., Reference Signal Receiving Power (RSRP), Received Signal Strength Indicator (RSSI), Reference Signal Received Quality (RSRQ), or Signal to Interference plus Noise Ratio (SINR)) of the SSB broadcast by the cells of the 5G NR network via SMTC-configured cell measurements received from the 5G NR network.

[0053] Cell measurement can refer to intra-frequency measurement (i.e., measurement on cells within one or more frequencies) and / or inter-frequency measurement (i.e., measurement on cells between one or more frequencies) in a 5G NR network. In particular, cell measurement can include obtaining measurement results and reporting the measurement results to the serving network.

[0054] In one embodiment, the extended measurement period can be linearly scaled from the measurement period. For example, if N*max(SMTC period, DRX period) is the measurement period and M*max(SMTC period, DRX period) is the extended measurement period, then when DRX is used and the DRX period is less than or equal to 320ms, M can be equal to 1.5*N, where N can refer to the number of measurement samples required.

[0055] In another embodiment, the extended measurement period can be the sum of the measurement period and an integer (i.e., M = N + x, where x is an integer).

[0056] Please note that by extending the measurement period, the wireless transceiver can skip one or more MOs to save power. That is, for those skipped MOs, the wireless transceiver can remain in a low-power mode, where wireless transmission and reception are not required or performed.

[0057] In one embodiment, the UE can determine skippable Operational Moments (MOs), each skippable MO having a first time difference and a second time difference. The first time difference is between the start of the MO and the end of the DRX ON timing preceding the MO, and the second time difference is between the end of the MO and the start of the DRX ON timing following the MO, wherein both the first and second time differences are greater than a predetermined threshold. Otherwise, if either the first or second time difference is less than or equal to the predetermined threshold, the MO can be skipped.

[0058] Figure 5 This is a schematic diagram illustrating the determination of MOs that can be skipped during an extended measurement period, according to an embodiment of the present invention.

[0059] like Figure 5 As shown, the measurement period can contain 5 MOs (denoted as MO-1 to MO-5), while the extended measurement period can contain 6 MOs (denoted as MO-1 to MO-6).

[0060] Traditionally, a UE needs to perform cell measurements at all measurement times MO-1 to MO-5 within a measurement period. That is, the UE needs to collect 5 measurement samples from time period T. In contrast, in this invention, the UE can collect 5 measurement samples from time period T', thus skipping one of MOs from MO-1 to MO-6 to save power.

[0061] In this embodiment, measurement opportunity MO-1 can be skipped because one of the time differences between MO-1 and the previous DRX ON opportunity (denoted as d1) is less than a predetermined threshold (e.g., a time slot in a 5G NR network). Measurement opportunity MO-2 can be skipped because both the time differences between MO-2 and the previous DRX ON opportunity (denoted as d2) and the next DRX ON opportunity (denoted as d3) are greater than the predetermined threshold. Measurement opportunity MO-3 can be skipped because one of the time differences between MO-3 and the previous DRX ON opportunity (denoted as d4) is less than the predetermined threshold. Measurement opportunity MO-4 can be skipped because one of the time differences between MO-4 and the previous DRX ON opportunity (denoted as d5) is less than the predetermined threshold. Measurement timing MO-5 can be skipped because one of the time differences between MO-5 and the previous DRX ON timing (denoted as d6) and the next DRX ON timing is less than a predetermined threshold. Similarly, measurement timing MO-6 can be skipped because one of the time differences between MO-6 and the previous DRX ON timing (denoted as d7) and the next DRX ON timing is less than a predetermined threshold.

[0062] Return to reference Figure 3 After step S320, if the measurement configuration and DRX configuration are aligned in time, the UE does not extend the measurement period indicated by the measurement configuration (step S350), and performs cell measurement via the radio transceiver during the measurement period (step S360), and the method may end.

[0063] In view of the above embodiments, it is understood that the present invention proposes that the UE extend the measurement period indicated by a measurement configuration (such as SMTC), wherein the measurement configuration is received from the serving network. By extending the measurement period, the UE can skip one or more MOs during the extended measurement period, thus allowing the UE's radio transceiver to remain in low-power mode during the skipped MOs. Advantageously, the power consumption of the UE can be effectively reduced.

[0064] While the invention has been described by way of exemplary means according to preferred embodiments, it is to be understood that the invention is not limited thereto. Various changes and modifications can be made by those skilled in the art without departing from the scope and spirit of the invention. Therefore, the scope of the invention should be defined and protected by the appended claims and their equivalents.

[0065] The ordinal numbers used in the claims to modify claim elements (such as "first", "second", etc.) do not in themselves imply any priority, preference or order of one claim element relative to another claim element or relative to the temporal order of the actions of the method of execution. Rather, they are merely labels used to distinguish one claim element with a specific name from another element with the same name (except for the use of ordinal numbers) to differentiate claim elements.

Claims

1. A user equipment for performing cell measurement, comprising: A wireless transceiver is configured to wirelessly transmit to and wirelessly receive from a serving network. as well as The controller is configured as follows: The measurement configuration and discontinuous reception configuration are received from the serving network via the wireless transceiver, wherein the measurement configuration includes a radio resource management measurement timing configuration based on synchronization signal blocks; The first measurement period is obtained based on the radio resource management measurement timing configuration based on the synchronization signal block; Based on the discontinuous reception configuration, the first measurement period is extended to obtain a second measurement period; and The cell measurement is performed via the wireless transceiver during the second measurement period.

2. The user equipment as claimed in claim 1, characterized in that, When discontinuous reception is used and the discontinuous reception period is less than or equal to a threshold, the first measurement period is extended to obtain the second measurement period.

3. The user equipment as described in claim 2, characterized in that, The threshold is 320ms.

4. The user equipment as claimed in claim 1, characterized in that, During the cell measurement, the wireless transceiver is allowed to skip one or more measurement opportunities.

5. The user equipment as claimed in claim 1, characterized in that, The controller is also configured to determine measurement timings to be skipped, each of the skipped measurement timings having a first time difference and a second time difference, the first time difference being between the start of the corresponding measurement timing and the end of a discontinuous reception on-time prior to the corresponding measurement timing, and the second time difference being between the end of the corresponding measurement timing and the start of a discontinuous reception on-time after the corresponding measurement timing, wherein the first time difference and the second time difference are greater than a predetermined threshold.

6. The user equipment as described in claim 5, characterized in that, The predetermined threshold is set to zero.

7. The user equipment as claimed in claim 1, characterized in that, The controller is also configured to determine whether the measurement configuration and the discontinuous reception configuration are time-aligned, perform the extension of the first measurement period in response to the time misalignment of the measurement configuration and the discontinuous reception configuration, and not extend the first measurement period in response to the time alignment of the measurement configuration and the discontinuous reception configuration.

8. The user equipment as claimed in claim 7, characterized in that, The controller is also configured to determine, based on the measurement configuration and the discontinuous reception configuration, the time difference between the start point of the measurement timing and the end point of the discontinuous reception on-time prior to the measurement timing, or the time difference between the end point of the measurement timing and the start point of the discontinuous reception on-time after the measurement timing. Determine that the measurement configuration and the discontinuous reception configuration are misaligned in time in response to the time difference being greater than a predetermined threshold; And determine that the measurement configuration and the discontinuous reception configuration are time-aligned in response to the time difference being less than or equal to the predetermined threshold.

9. The user equipment as claimed in claim 8, characterized in that, The predetermined threshold is set to zero.

10. A method for performing cell measurements, performed by a user equipment, the user equipment including a wireless transceiver, the method comprising: The measurement configuration and discontinuous reception configuration are received from the serving network via the wireless transceiver, wherein the measurement configuration includes a radio resource management measurement timing configuration based on synchronization signal blocks; The first measurement period is obtained based on the radio resource management measurement timing configuration based on the synchronization signal block; Based on the discontinuous reception configuration, the first measurement period is extended to obtain a second measurement period; and The cell measurement is performed via the wireless transceiver during the second measurement period.

11. The method for performing cell measurement as described in claim 10, characterized in that, When discontinuous reception is used and the discontinuous reception period is less than or equal to a threshold, the first measurement period is extended to obtain the second measurement period.

12. The method for performing cell measurement as described in claim 11, characterized in that, The threshold is 320ms.

13. The method for performing cell measurement as described in claim 10, characterized in that, During the cell measurement, the wireless transceiver is allowed to skip one or more measurement opportunities.

14. The method for performing cell measurement as described in claim 11, characterized in that, Also includes: The measurement timing to be skipped is determined, each of the measurement timings to be skipped having a first time difference and a second time difference, the first time difference being between the start of the corresponding measurement timing and the end of a discontinuous reception on-time prior to the corresponding measurement timing, and the second time difference being between the end of the corresponding measurement timing and the start of a discontinuous reception on-time after the corresponding measurement timing, wherein the first time difference and the second time difference are greater than a predetermined threshold.

15. The method for performing cell measurement as described in claim 14, characterized in that, The predetermined threshold is set to zero.

16. The method for performing cell measurement as described in claim 10, characterized in that, Also includes: Determine whether the measurement configuration and the discontinuous reception configuration are time-aligned, perform the extension of the first measurement period in response to the time misalignment of the measurement configuration and the discontinuous reception configuration, and do not extend the first measurement period in response to the time alignment of the measurement configuration and the discontinuous reception configuration.

17. The method for performing cell measurement as described in claim 16, characterized in that, Also includes: Based on the measurement configuration and the discontinuous reception configuration, determine the time difference between the start point of the measurement timing and the end point of the discontinuous reception opening timing before the measurement timing, or the time difference between the end point of the measurement timing and the start point of the discontinuous reception opening timing after the measurement timing. Determine that the measurement configuration and the discontinuous reception configuration are misaligned in time in response to the time difference being greater than a predetermined threshold; as well as The measurement configuration and the discontinuous reception configuration are determined to be time-aligned in response to the time difference being less than or equal to the predetermined threshold.

18. The method for performing cell measurement as described in claim 17, characterized in that, The predetermined threshold is set to zero.

19. A storage device for storing program instructions, which, when executed by a controller, cause the controller to perform a method for performing cell measurements as claimed in any one of claims 10-18.

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