A communication method and apparatus
By dynamically adjusting the measurement and evaluation cycle in eDRX scenarios, the high power consumption of REDCAP UEs was resolved, resulting in lower power consumption and longer battery standby time.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- HUAWEI TECH CO LTD
- Filing Date
- 2021-10-19
- Publication Date
- 2026-04-17
AI Technical Summary
In the existing technology, the power consumption of REDCAP UE is relatively high, especially in the eDRX scenario, where frequent measurement and evaluation cycles lead to increased power consumption, making it difficult to meet its low power consumption requirements.
By dynamically adjusting the measurement and evaluation cycle in eDRX scenarios, and extending the measurement and evaluation cycle according to the configured paging time window (PTW) length, unnecessary measurement and evaluation times are reduced, thereby achieving energy-saving effects for terminal devices.
By dynamically adjusting the measurement and evaluation cycle, the power consumption of the terminal device is reduced, meeting the low power consumption requirements of REDCAP UE and improving battery standby time.
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Figure CN115996450B_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of communications, and more specifically, to a communication method and apparatus. Background Technology
[0002] Currently, Release 17 introduces new radio (NR) reduced capability user equipment (REDCAP UE). Compared to traditional UEs, REDCAP UEs have reduced operating bandwidth, antenna count, and other capabilities. At the same time, REDCAP UEs have higher power consumption requirements, thus necessitating more energy-saving strategies to achieve lower power consumption.
[0003] For REDCAP UEs in Release 17, the 3rd generation partnership project (3GPP) has clearly defined the terminal equipment's support for extended discontinuous reception (eDRX) enhancements. Currently, eDRX measurements can be performed according to the measurement cycles defined in the LTE protocol; however, this results in more frequent measurement and evaluation cycles for the terminal equipment, leading to increased power consumption. Summary of the Invention
[0004] This application provides a communication method and apparatus that can dynamically adjust (e.g., lengthen) the measurement cycle and / or evaluation cycle in eDRX scenarios based on the length of different configured paging time windows (PTW), so that the terminal device can complete the measurement and evaluation within a single PTW window and minimize the power consumption of the terminal device, thereby better achieving the energy-saving effect of the terminal device.
[0005] In a first aspect, a communication method is provided, comprising: a terminal device receiving a first parameter of an extended discontinuous reception (eDRX) period from a network device, the first parameter being used to determine a second parameter measured in an eDRX scenario, the first parameter including the duration of a paging time window (PTW) and the period T of the discontinuous reception DRX. DRX Extended period T of discontinuous reception eDRX eDRX The terminal device determines the second parameter measured in the eDRX scenario based on the correspondence between the first parameter and the second parameter. The second parameter includes the measurement period T1 in the eDRX scenario, where the PTW duration is X times the positive number R, and the measurement period T1 is T. DRXIf Z is a positive integer multiple of X, X falls into one of the pre-configured quantization intervals of P PTW time lengths, where P is an integer greater than or equal to 2. The measurement periods T1 corresponding to the P intervals are different. As X increases, the measurement period T1 increases. i ≤X<Z i+1 Then the measurement period T1 is T DRX Y i Multiplied by, i is an integer greater than or equal to 1 and less than or equal to P-1, where Y i+1 Greater than Y i If X ≥ Z P Then the measurement period T1 is T DRX Y P Times, where X and Z i Z i+1 Y i Y i+1 All are integers greater than or equal to 1. The terminal device performs measurements in the eDRX scenario based on the second parameter.
[0006] In this application, the measurement in the eDRX scenario refers to the measurement period and evaluation period of the UE when the network side configures the eDRX period for the UE and there is a paging time window PTW. This is different from the ordinary DRX scenario, which does not configure a paging time window PTW.
[0007] In this application, [Z] i Z i+1 Z represents the i-th interval among the P intervals. i and Z i+1 Z represents the lower limit and upper limit of the i-th interval, respectively; P It is the lower limit value of the Pth interval (that is, the last interval among the P intervals), where the upper limit value of the Pth interval is not limited.
[0008] Based on the above scheme, in this application, as the PTW duration increases (which can also be understood as as the quantization parameter X increases), the measurement period T1 in the eDRX scenario can be dynamically adjusted (for example, the measurement period T1 increases). The terminal device can dynamically lengthen the value of the measurement period T1 based on the different PTW durations configured by the higher layer, which can achieve better UE energy saving effect.
[0009] Secondly, a communication method is provided, comprising: a terminal device receiving a first parameter of an extended discontinuous reception (eDRX) period from a network device, the first parameter being used to determine a second parameter measured in an eDRX scenario, the first parameter including the duration of a paging time window (PTW) and the period T of the discontinuous reception DRX. DRX Extended period T of discontinuous reception eDRXeDRX The terminal device determines the second parameter measured in the eDRX scenario based on the correspondence between the first parameter and the second parameter. The second parameter includes the evaluation period T2 in the eDRX scenario, where the PTW time length is X times the positive number R, and the evaluation period T2 is T DRX If X is a positive integer multiple of 2, it falls into one of the pre-configured quantization intervals of P PTW time lengths, where P is an integer greater than or equal to 2. The evaluation periods T2 corresponding to the P intervals are different. As X increases, the evaluation period T2 increases. If W i ≤X<W i+1 Then the evaluation period T2 is T DRX V i Multiplied by, i is an integer greater than or equal to 1 and less than or equal to P-1, where V i+1 Greater than V i If X ≥ W P Then the evaluation period T2 is T DRX V P Times, of which X and W i W i+1 V i V i+1 All are integers greater than or equal to 1. The terminal device performs measurements in the eDRX scenario based on the second parameter.
[0010] Based on the above scheme, in this application, as the PTW duration increases (which can also be understood as as the quantization parameter X increases), the evaluation period T2 in the eDRX scenario can be dynamically adjusted (for example, the evaluation period T2 increases). The terminal device can dynamically lengthen the value of the evaluation period T2 based on the different PTW durations configured by the higher layer, which can achieve better UE energy saving effect.
[0011] In one implementation, the correspondence between the first parameter and the second parameter and Z... i Z i+1 Y i Y i+1 W i W i+1 V i V i+1 The specific values are predefined by the protocol.
[0012] In this application, the correspondence between the first parameter and the second parameter can also be understood as the mapping relationship between the first parameter and the second parameter. Its form of representation can be, for example, a table, etc., without limitation.
[0013] In this application, the correspondence can be configured on the terminal device, and the terminal device can determine the value of the second parameter based on the correspondence.
[0014] Based on the above technical solution, in this application, the correspondence between the first parameter and the second parameter can be predefined by the protocol, so that the terminal device can extend the measurement cycle and / or evaluation cycle according to the time length of different paging time windows (PTW) issued by the network side, and ultimately obtain the energy-saving benefits of the terminal device.
[0015] In one implementation, the positive number R is a real number representing the time interval granularity.
[0016] In one implementation, the positive number R is 1.28 seconds.
[0017] In one implementation, the terminal device may not need to configure the correspondence between the first parameter and the second parameter. In this case, the terminal device can determine the value of the second parameter independently based on the first parameter.
[0018] Based on the above technical solution, the terminal device can autonomously determine the value of the second parameter, thereby enabling the terminal device to appropriately extend the measurement cycle and / or evaluation cycle within each PTW duration while ensuring measurement performance, ultimately achieving energy-saving benefits and realizing a trade-off between measurement performance and energy-saving effect.
[0019] Thirdly, a communication method is provided, comprising: a network device determining a second parameter based on a correspondence between a first parameter and a second parameter of an extended discontinuous reception (eDRX) period, wherein the first parameter includes the duration of a paging time window (PTW) and the period T of the discontinuous reception DRX. DRX Extended period T of discontinuous reception eDRX eDRX The second parameter includes the measurement period T1 in the eDRX scenario, where the PTW duration is X times a positive number R, and the measurement period T1 is T DRX If Z is a positive integer multiple of X, X falls into one of the pre-configured quantization intervals of P PTW time lengths, where P is an integer greater than or equal to 2. The measurement periods T1 corresponding to the P intervals are different. As X increases, the measurement period T1 increases. i ≤X<Z i+1 Then the measurement period T1 is T DRX Y i Multiplied by, i is an integer greater than or equal to 1 and less than or equal to P-1, where Y i+1 Greater than Y i If X ≥ Z P Then the measurement period T1 is T DRX Y P Times, where X and Z i Z i+1 Y i Y i+1All are integers greater than or equal to 1, and the network device sends the second parameter to the terminal device.
[0020] Based on the above scheme, in this application, as the PTW duration increases (which can also be understood as as the quantization parameter X increases), the measurement period T1 in the eDRX scenario can be dynamically adjusted (for example, the measurement period T1 increases). The network device can dynamically lengthen the value of the measurement period T1 based on the different PTW durations configured by higher layers, which can achieve better UE energy saving effect.
[0021] Fourthly, a communication method is provided, which includes a network device determining a second parameter based on a correspondence between a first parameter and a second parameter of the extended discontinuous reception (eDRX) period. The first parameter is used to determine the second parameter measured in the eDRX scenario, and includes the duration of the paging time window (PTW) and the period T of the discontinuous reception DRX. DRX Extended period T of discontinuous reception eDRX eDRX The second parameter includes the evaluation period T2 in the eDRX scenario, where the PTW duration is X times a positive number R, and the evaluation period T2 is the value of T. DRX If X is a positive integer multiple of 2, it falls into one of the pre-configured quantization intervals of P PTW time lengths, where P is an integer greater than or equal to 2. The evaluation periods T2 corresponding to the P intervals are different. As X increases, the evaluation period T2 increases. If W i ≤X<W i+1 Then the evaluation period T2 is the T mentioned above. DRX V i Multiplied by, i is an integer greater than or equal to 1 and less than or equal to P-1, where V i+1 Greater than V i If X ≥ W P Then the evaluation period T2 is T DRX V P Times, of which X and W i W i+1 V i V i+1 All are integers greater than or equal to 1, and the network device sends the second parameter to the terminal device.
[0022] Based on the above technical solution, in this application, as the PTW duration increases (which can also be understood as as the quantization parameter X increases), the evaluation period T2 in the eDRX scenario can be dynamically adjusted (for example, the evaluation period T2 increases). The network device can dynamically lengthen the value of the evaluation period T2 based on the different PTW durations configured by higher layers, which can achieve better UE energy saving effect.
[0023] In one implementation, the network device can modify the configuration parameters related to the network device's measurement resources according to the second parameter, and send the modified configuration parameters to the terminal device.
[0024] In this application, for example, the network device can modify the transmission period of the synchronization signal and physical broadcast channel block (SSB) and the period parameters in the SSB measurement timing configuration (SMTC) based on the second parameter.
[0025] Based on the above technical solution, in this application, the network device can modify the configuration parameters related to eDRX measurement resources based on the second parameter. For example, the network device can appropriately reduce the number of SSB transmissions during a longer PTW, thereby lengthening the SSB transmission cycle (and simultaneously lengthening the cycle parameter in SMTC), ultimately achieving energy saving for the network device.
[0026] In one implementation, the correspondence between the first parameter and the second parameter is predefined by the protocol.
[0027] In one implementation, the positive number R is a real number representing the time interval granularity.
[0028] In one implementation, the positive number R is 1.28 seconds.
[0029] Fifthly, a communication device is provided, the device comprising a unit for performing a method in any possible implementation of either the first or second aspect.
[0030] In a sixth aspect, a communication device is provided, the device comprising a unit for performing a method in any possible implementation of either the third or fourth aspect.
[0031] A seventh aspect provides a communication device including a processor. The processor is coupled to a memory and can be used to execute instructions in the memory to implement the methods in any possible implementation of either the first or second aspect described above. Optionally, the device further includes a memory. Optionally, the device further includes a communication interface, to which the processor is coupled.
[0032] In one implementation, the device is a terminal device. When the device is a terminal device, the communication interface can be a transceiver, or an input / output interface.
[0033] In another implementation, the device is a chip configured in a terminal device. When the device is a chip configured in a terminal device, the communication interface can be an input / output interface.
[0034] In one implementation, the device is a host node device. When the device is a host node device, the communication interface can be a transceiver, or an input / output interface.
[0035] In another implementation, the device is a chip configured in the host node. When the device is a chip configured in the host node, the communication interface can be an input / output interface. Optionally, the transceiver can be a transceiver circuit. Optionally, the input / output interface can be an input / output circuit.
[0036] Eighthly, a communication device is provided, including a processor. The processor is coupled to a memory and can be used to execute instructions in the memory to implement the methods in any possible implementation of any of the third or fourth aspects described above. Optionally, the device further includes a memory. Optionally, the device further includes a communication interface, to which the processor is coupled.
[0037] In one implementation, the device is a network device. When the device is a network device, the communication interface can be a transceiver, or an input / output interface.
[0038] In another implementation, the device is a chip configured in a network device. When the device is a chip configured in a network device, the communication interface can be an input / output interface.
[0039] In one implementation, the device is a host node device. When the device is a host node device, the communication interface can be a transceiver, or an input / output interface.
[0040] In another implementation, the device is a chip configured in the host node device. When the device is a chip configured in the host node device, the communication interface can be an input / output interface.
[0041] Optionally, the transceiver can be a transceiver circuit. Optionally, the input / output interface can be an input / output circuit.
[0042] A ninth aspect provides a processor, comprising: an input circuit, an output circuit, and a processing circuit. The processing circuit is configured to receive signals through the input circuit and transmit signals through the output circuit, causing the processor to execute a method in any possible implementation of any of the fourth aspects of the first aspect.
[0043] In specific implementation, the processor can be one or more chips, the input circuit can be input pins, the output circuit can be output pins, and the processing circuit can be transistors, gate circuits, flip-flops, and various logic circuits. The input signal received by the input circuit can be received and input by, for example, but not limited to, a transceiver, and the signal output by the output circuit can be, for example, but not limited to, output to and transmitted by a transmitter. Furthermore, the input circuit and the output circuit can be the same circuit, which is used as both the input circuit and the output circuit at different times. This application does not limit the specific implementation of the processor and various circuits.
[0044] A tenth aspect provides a processing apparatus including a processor and a memory. The processor is configured to read instructions stored in the memory and to receive signals via a transceiver and transmit signals via a transmitter to execute a method in any possible implementation of any of the first to fourth aspects.
[0045] Optionally, the processor may be one or more, and the memory may be one or more.
[0046] Optionally, the memory may be integrated with the processor, or the memory may be separated from the processor.
[0047] In specific implementation, the memory can be a non-transitory memory, such as read-only memory (ROM), which can be integrated with the processor on the same chip or set on different chips. The embodiments of this application do not limit the type of memory or the way the memory and processor are set.
[0048] It should be understood that the relevant data interaction process, such as sending indication information, can be the process of the processor outputting indication information, and receiving capability information can be the process of the processor receiving input capability information. Specifically, the data output by the processor can be sent to the transmitter, and the input data received by the processor can come from the transceiver. Here, the transmitter and the transceiver can be collectively referred to as transceivers.
[0049] The processing device mentioned in the tenth aspect above can be one or more chips. The processor in the processing device can be implemented in hardware or software. When implemented in hardware, the processor can be a logic circuit, integrated circuit, etc.; when implemented in software, the processor can be a general-purpose processor that reads software code stored in memory. The memory can be integrated into the processor or located outside the processor and exist independently.
[0050] Eleventhly, a computer-readable medium is provided that stores a computer program (also referred to as code or instructions) that, when run on a computer, causes the computer to perform the methods in any possible implementation of any of the first to fourth aspects described above.
[0051] In a twelfth aspect, a chip system is provided, including a processor for calling and running a computer program from a memory, such that a device equipped with the chip system performs the method of any possible implementation of any of the first to fourth aspects described above.
[0052] In a thirteenth aspect, a communication system is provided, the communication system including the apparatus of the fifth aspect and the apparatus of the sixth aspect. Attached Figure Description
[0053] Figure 1 This is a schematic diagram of a scenario to which this application applies.
[0054] Figure 2 This is a schematic diagram of a protocol stack architecture applicable to this application.
[0055] Figure 3 This is a schematic diagram of the DRX provided in this application.
[0056] Figure 4 This is a schematic diagram of the eDRX provided in this application.
[0057] Figure 5 This is a schematic block diagram of the communication method 500 provided in this application.
[0058] Figure 6 This is a schematic block diagram of the communication method 600 provided in this application.
[0059] Figure 7 This is a schematic flowchart of the communication method 700 provided in this application.
[0060] Figure 8 This is a schematic block diagram of the communication device 100 provided in this application.
[0061] Figure 9 This is a schematic block diagram of the communication device 200 provided in this application.
[0062] Figure 10 This is a schematic diagram of the terminal device provided in this application.
[0063] Figure 11 This is a schematic diagram of the network device provided in this application.
[0064] Figure 12 This is another schematic diagram of the network device provided in this application. Detailed Implementation
[0065] The wireless communication systems applicable to the embodiments of this application can comply with the wireless communication standards of the Third Generation Partnership Project (3GPP). These include, but are not limited to: Global System for Mobile Communication (GSM) systems, Long Term Evolution (LTE) Frequency Division Duplex (FDD) systems, LTE Time Division Duplex (TDD) systems, LTE systems, LTE-Advanced (LTE-A) systems, next-generation communication systems (e.g., 5G communication systems), converged systems of multiple access systems, or evolved systems (e.g., 6G communication systems).
[0066] The technical solutions provided in this application can also be applied to machine-type communication (MTC), Long Term Evolution-machine (LTE-M) technology, device-to-device (D2D) networks, machine-to-machine (M2M) networks, Internet of Things (IoT) networks, or other networks. Among these, IoT networks may include, for example, vehicle-to-everything (V2X) networks. The communication methods in V2X systems are collectively referred to as vehicle-to-X (V2X), where X can represent anything. For example, V2X may include vehicle-to-vehicle (V2V) communication, vehicle-to-infrastructure (V2I) communication, vehicle-to-pedestrian (V2P) communication, or vehicle-to-network (V2N) communication, etc.
[0067] Wireless access network equipment can be devices with wireless transceiver capabilities. This wireless access network equipment can be a device that provides wireless communication services, typically located on the network side, including but not limited to: next-generation base stations (gNodeB, gNB) in 5th generation (5G) communication systems, next-generation base stations in 6th generation (6G) mobile communication systems, base stations in future mobile communication systems, or access nodes in WiFi systems; evolved node B (eNB), radio network controller (RNC), node B (NB), base station controller (BSC), home base station (e.g., home-evolved NodeB, or home Node B, HNB), base band unit (BBU), transmission reception point (TRP), transmitting point (TP), base transceiver station (BTS), etc. in LTE systems. In a network architecture, the access network equipment may include centralized unit (CU) nodes, distributed unit (DU) nodes, RAN equipment including CU and DU nodes, or RAN equipment including control plane CU nodes, user plane CU nodes, and DU nodes. The access network equipment provides services to a cell. User equipment communicates with the base station through the transmission resources (e.g., frequency domain resources, or spectrum resources) used by the cell. The cell can be the cell corresponding to a base station (e.g., a base station). The cell can belong to a macro base station or a base station corresponding to a small cell. Small cells can include metrocells, microcells, pico cells, femto cells, etc. These small cells have the characteristics of small coverage area and low transmission power, making them suitable for providing high-speed data transmission services. The wireless access network equipment can be a macro base station (e.g., a macro base station). Figure 1 110a in the text), can also be a micro base station or an indoor station (such as... Figure 1110b) in this context can also refer to relay nodes or donor nodes, devices providing wireless communication services to user equipment in V2X communication systems, wireless controllers in cloud radio access network (CRAN) scenarios, relay stations, vehicle-mounted devices, wearable devices, and network devices in future evolved networks. The embodiments of this application do not limit the specific technologies or device forms used in the wireless access network devices. For ease of description, a base station is used as an example of a wireless access network device in the following description.
[0068] A terminal can also be called a terminal device, user equipment (UE), mobile station (MS), mobile terminal (MT), etc. It can be an entity on the user side used to receive or transmit signals, such as a mobile phone. Terminal equipment can be user equipment (UE), where UE includes handheld devices, in-vehicle devices, wearable devices, or computing devices with wireless communication capabilities. For example, a UE can be a mobile phone, tablet computer, or computer with wireless transceiver capabilities. Terminal equipment can also be virtual reality (VR) terminal equipment, augmented reality (AR) terminal equipment, wireless terminals in industrial control, wireless terminals in autonomous driving, wireless terminals in telemedicine, wireless terminals in smart grids, wireless terminals in smart cities, wireless terminals in smart homes, and so on. Terminals can be widely used in various scenarios, such as device-to-device (D2D), vehicle-to-everything (V2X) communication, machine-type communication (MTC), the Internet of Things (IoT), virtual reality, augmented reality, industrial control, autonomous driving, telemedicine, smart grids, smart furniture, smart offices, smart wearables, smart transportation, and smart cities. Terminals can be mobile phones, tablets, computers with wireless transceiver capabilities, wearable devices, vehicles, drones, helicopters, airplanes, ships, robots, robotic arms, smart home devices, etc.
[0069] The terminal device in this application can be, for example, a reduced-capability user equipment (REDCAP UE), or it can be extended to traditional UEs, such as existing energy-efficient UEs with relatively narrow BWP bandwidth. Specifically, the terminal device in this application can be a type A terminal device or a type B terminal device, and type A terminal devices and type B terminal devices can have at least one of the following distinguishing features:
[0070] 1. Different bandwidth capabilities. For example, type A terminal devices support less bandwidth than type B terminal devices.
[0071] 2. The number of transmit and receive antennas is different. For example, type A terminal equipment supports fewer transmit and receive antennas than type B terminal equipment.
[0072] 3. The maximum uplink transmit power is different. For example, the maximum uplink transmit power supported by type A terminal equipment is less than that supported by type B terminal equipment.
[0073] 4. Different protocol versions. For example, Type A terminal devices can be terminal devices from NR version 17 (release-17, Rel-17) or later versions of NR Rel-17. Type B terminal devices can be, for example, terminal devices from NR version 15 (release-15, Rel-15) or NR version 16 (release-16, Rel-16). Type B terminal devices can also be called NR legacy terminal devices.
[0074] 5. Different data processing capabilities. For example, the minimum latency between receiving downlink data and sending feedback on that downlink data is greater for type A terminal equipment than for type B terminal equipment; and / or, the minimum latency between sending uplink data and receiving feedback on that uplink data is greater for type A terminal equipment than for type B terminal equipment.
[0075] In one possible implementation, Type A terminal equipment can refer to low-capability REDCAP terminal equipment, or it can also refer to low-capability terminal equipment, reduced-capability terminal equipment, REDCAP UE, ReducedCapacity UE, narrow-band NR (NB-NR) UE, energy-saving UE, etc. Type B terminal equipment can refer to terminal equipment with traditional capabilities, normal capabilities, or high capabilities; it can also be called legacy terminal equipment or normal terminal equipment. Type B terminal equipment has, but is not limited to, the distinguishing features between it and Type A terminal equipment.
[0076] In this application embodiment, the device for implementing the terminal's functions can be a terminal itself; it can also be a device capable of supporting the terminal in implementing those functions, such as a chip system, a communication module, or a modem, etc., which can be installed in the terminal. In this application embodiment, the chip system can be composed of chips, or it can include chips and other discrete devices. In the technical solutions provided in this application embodiment, the device for implementing the terminal's functions is a terminal, and the terminal is a UE (User Equipment) as an example, to describe the technical solutions provided in this application embodiment. The embodiments of this application do not limit the specific technology or specific device form adopted by the terminal device.
[0077] Optionally, the UE can also be used as a base station. For example, the UE can act as a scheduling entity, providing sidelink signaling between UEs in vehicle-to-everything (V2X), device-to-device (D2D), or peer-to-peer (P2P) scenarios.
[0078] Base stations and terminals can be fixed or mobile. They can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; they can also be deployed on water; and they can be deployed in the air on aircraft, balloons, and satellites. The embodiments of this application do not limit the application scenarios of the base stations and terminals.
[0079] Communication between base stations and terminals, between base stations, and between terminals can be conducted using licensed spectrum, unlicensed spectrum, or both simultaneously. Communication can be conducted using spectrum below 6 GHz, spectrum above 6 GHz, or both simultaneously. The embodiments of this application do not limit the spectrum resources used for wireless communication.
[0080] In the embodiments of this application, the functions of the base station can be executed by modules (such as chips) within the base station, or by a control subsystem that includes base station functions. This control subsystem, including base station functions, can be a control center in the application scenarios of the aforementioned terminals, such as smart grids, industrial control, intelligent transportation, and smart cities. Similarly, the functions of the terminal can be executed by modules (such as chips or modems) within the terminal, or by a device that includes terminal functions.
[0081] Figure 1 This is a schematic diagram illustrating one scenario to which this application applies. For example... Figure 1 As shown, a wireless communication system includes terminals and base stations. Depending on the transmission direction, the transmission link from the terminal to the base station is denoted as the uplink (UL), and the transmission link from the base station to the terminal is denoted as the downlink (DL). Similarly, data transmission in the uplink can be abbreviated as uplink data transmission or uplink transfer, and data transmission in the downlink can be abbreviated as downlink data transmission or downlink transfer. In this wireless communication system, the base station can provide communication coverage for a specific geographical area through integrated or external antenna devices. One or more terminals located within the communication coverage area of the base station can access the base station. A base station can manage one or more cells. Each cell has an identification, also known as a cell identity (cell ID). From the perspective of radio resources, a cell is a combination of downlink radio resources and paired uplink radio resources (not mandatory).
[0082] Terminals and base stations should be aware of the predefined configuration of the wireless communication system, including the radio access technologies (RATs) supported by the system and the system-specified wireless resource configurations, such as the basic configuration of radio frequency bands and carriers. A carrier is a frequency range defined by the system. This frequency range can be determined by the carrier's center frequency (denoted as the carrier frequency) and the carrier's bandwidth. These predefined system configurations can be part of the standard protocol of the wireless communication system, or determined through interaction between the terminal and the base station. The content of the relevant standard protocol may be pre-stored in the memory of the terminal and the base station, or embodied in the hardware circuitry or software code of the terminal and the base station.
[0083] In this wireless communication system, the base station supports one or more identical Radio Access Platforms (RATs), such as 5G New Radio (NR), 5G NRREDCAP UE, 4G LTE, or the RAT of future evolution systems. Specifically, the terminal and the base station use the same air interface parameters, coding schemes, and modulation schemes, and communicate with each other based on the radio resources specified by the system.
[0084] Figure 2 This is a schematic diagram of a protocol stack architecture applicable to this application. For example... Figure 2 As shown, the control plane of this protocol stack architecture comprises multiple layers, such as: Non-access stratum (NAS), Radio Resource Control (RRC), Packet Data Convergence Protocol (PDCP), Radio Link Control (RLC), Media Access Control (MAC), and Physical Layer (PHY). The NAS layer implements UE registration management, authentication access control, and session management. The UE can interact with the core network via signaling through the base station. The RRC signaling interaction module can be used by the base station and the UE to send and receive RRC signaling. The MAC signaling interaction module can be used by the base station and the UE to send and receive MAC control element (CE) signaling. The PHY signaling and data interaction module can be used by the base station and UE to send and receive uplink or downlink control signaling, such as the physical uplink control channel (PUCCH) and physical downlink control channel (PDCCH), as well as uplink or downlink data modules, such as the physical uplink shared channel (PUSCH) and physical downlink shared channel (PDSCH). The user plane of this protocol stack includes: Service Data Adaptation Protocol (SDAP), PDCP, RLC, MAC, and PHY. Among them, SDAP, configured via RRC signaling, is responsible for mapping the Quality of Service (QoS) flow to the data radio bearer (DRB).
[0085] Currently, Release 17 introduces NR REDCAP UEs. As mentioned earlier, compared to traditional UEs, REDCAP UEs have reduced operating bandwidth and antenna count. Simultaneously, REDCAP UEs have higher power consumption requirements, thus necessitating more energy-saving strategies to achieve lower power consumption. For example, in wearable applications, REDCAP UEs require several days (or even one to two weeks) of battery standby time; in industrial wireless applications, they require at least several weeks; and in video surveillance applications, they may require several years or even longer.
[0086] For RedCap UEs in Release 17, the 3rd generation partnership project (3GPP) has determined that support for extended discontinuous reception (eDRX) enhancements should be explicitly defined, along with measurement constraints under eDRX. Currently, it has been determined that: ① When the eDRX period configured for a RedCap UE in Idle or Inactive states is less than or equal to 10.24s, paging time window (PTW) and paging hyper-frame (PH) will not be used; ② When the eDRX period configured for a RedCap UE in Idle or Inactive states is greater than 10.24s (the 3GPP standard tentatively allows up to 10485.76s), PTW and PH will be used.
[0087] To facilitate understanding of the technical solution of this application, the eDRX concept and related technical terms will be briefly introduced below.
[0088] Discontinuous reception (DRX) allows the UE to periodically enter sleep mode at certain times, without listening to the PDCCH. When listening is required, it is woken up from sleep mode, thus saving power for the UE. Figure 3 This shows a typical DRX cycle. (Example) Figure 3As shown in this application, a DRX cycle may include an on-duration period (which can also be understood as a paging opportunity) and a sleep period. The on-duration period can also be called the activation period. The terminal device can communicate with the network device during the on-duration period. In other words, the DRX cycle describes the interval between two on-duration occurrences in a DRX state. Each DRX cycle consists of one on-duration and one possible sleep period.
[0089] like Figure 4 As shown, compared to DRX, eDRX has a longer paging cycle, with each eDRX cycle containing a paging time window (PTW) and a deep sleep period. eDRX allows terminals to save power more effectively, but it also results in longer downlink data latency. The module can only listen to the paging channel according to the DRX cycle within the PTW to receive downlink services; outside the PTW, it is in a sleep state, does not listen to the paging channel, and cannot receive downlink services.
[0090] eDRX technology introduces hyperframes (H-SFNs), where 1 Hyper-SFN = 1024 SFNs = 10.24 seconds. The eDRX period is measured in hyperframes, with a range of {10.24s × 2}. i The value of i is 1-10, with a maximum duration of 2.92 hours. Network devices can broadcast H-SFN frame numbers in system messages, and the UE receives these H-SFN frame numbers. When an eDRX paging occurs, the network device calculates the UE's paging time according to the algorithm in the protocol and sends out the paging message. The UE also calculates the paging listening time according to the same algorithm and receives the paging message. The PTW paging time window is the time during which the eDRX UE listens for paging messages, and it can be configured to the UE by the Mobility Management Entity (MME). The UE is only woken up within the PTW window and listens for paging messages in the normal paging mode until it receives a paging message or the PTW ends. For LTE, the PTW length is an integer multiple of 2.56 seconds, with a maximum of 16 2.56-second intervals, or 40.96 seconds. The network device and UE determine the paging listening time according to the eDRX period T. eDRX,H Given the paging window length L, calculate the start and end positions of the PTW.
[0091] Currently, the LTE TS36.133 standard (see Table 4.2.2.3-2 in the LTE TS36.133 standard for details) provides cell reselection measurement constraints (the same for intra-frequency and inter-frequency constraints) for idle UEs configured with eDRX. The eDRX period range is [5.12s, 2621.44s], and the measurement constraints are related to the DRX period within the PTW window and the PTW window length configured by the higher layers, as shown in Table 1 below.
[0092] Table 1
[0093]
[0094] In Table 1, eDRX idle cycle length represents the eDRX cycle length when the UE is in idle state; DRX cycle length represents the cycle length of the UE's DRX; PTW length represents the duration of the UE's PTW; T detect,eutran_intra These represent parameters related to UE cell reselection delay, where "number of DRX periods" indicates that the parameters related to UE cell reselection delay are generally multiples of the UE's DRX periods; T measure,eutran_intra This indicates the UE measurement period, where the number of DRX periods indicates that the UE measurement period is generally a multiple of the UE's DRX period; T evaluate,eutran_intra This indicates the measurement period of the UE, where the number of DRX periods indicates that the UE evaluation period is generally a multiple of the UE's DRX period.
[0095] As shown in Table 1, to ensure that the measurement process can be completed within one PTW window, the measurement cycle is one DRX cycle, that is, measurement is required in each DRX cycle; at the same time, for the evaluation cycle (see T in Table 1)... evaluate The duration is also shorter than that of ordinary DRX scenarios. For eDRX scenarios, there are multiple DRX cycles within a PTW window. If the terminal device still performs measurements according to the technical solution in Table 1 (i.e., measurement is performed for each DRX cycle), the UE's power consumption will increase, which is not conducive to achieving energy-saving effects.
[0096] Referring to the current NRTS38.133 standard, the existing NR protocol still does not define the measurement cycle or evaluation cycle of terminal devices in eDRX scenarios. Therefore, a communication method is needed to provide a measurement method for eDRX PTW scenarios that is conducive to energy saving of terminal devices, taking into account the use of PTW and PH mechanisms in eDRX.
[0097] It should be noted that the technical solutions in the following embodiments of this application can be applied to eDRX scenarios.
[0098] In this application, the measurement in the eDRX scenario refers to the measurement period and evaluation period of the UE when the network side configures the eDRX period for the UE and there is a paging time window PTW. This is different from the ordinary DRX scenario, which does not configure a paging time window PTW.
[0099] Figure 5 This application proposes an eDRX measurement method 500, such as... Figure 5 As shown, the method includes:
[0100] Step 501: The terminal device receives the first parameter of the extended discontinuous reception eDRX period from the network device.
[0101] Correspondingly, the network device sends the first parameter of the extended discontinuous reception eDRX period to the terminal device.
[0102] In this application, the first parameter is used to determine the second parameter measured in the eDRX scenario. For example, the first parameter may include the duration of the paging time window PTW and the period T of discontinuous DRX reception. DRX Extended period T of discontinuous reception eDRX eDRX .
[0103] Step 502: The terminal device determines the second parameter measured in the eDRX scenario based on the correspondence between the first parameter and the second parameter.
[0104] In one implementation, the second parameter in this application may include the measurement period T1 in the eDRX scenario. Here, the PTW duration is X times a positive number R (X is an integer greater than 1), and the measurement period T1 is the time period of the measured period T1. DRX A positive integer multiple of.
[0105] In this application, the correspondence between the first parameter and the second parameter can also be understood as a mapping relationship. As an example, the terminal device can use the T parameter configured by the network device... DRX T eDRX The measurement period T1 is determined by the duration of PTW.
[0106] In this application, for example, the correspondence between the first parameter and the second parameter may be predefined by the protocol.
[0107] For example, the protocol can specify that if X falls into one of a pre-configured (e.g., P, where P is an integer greater than or equal to 2) quantization intervals of PTW time lengths, then if Z i ≤X<Z i+1 Then the measurement period T1 is the T DRX Y iThe multiple, where i is an integer greater than or equal to 1 and less than or equal to P-1, where Y i+1 Greater than Y i If X ≥ Z P Then the measurement period T1 is the T DRX Y P Times, where X and Z i Z i+1 Y i Y i+1 All values are integers greater than or equal to 1. The measurement periods T1 corresponding to the P intervals are different, and the measurement period T1 increases as X increases.
[0108] In this application, [Z] i Z i+1 Z represents the i-th interval among the P intervals. i and Z i+1 Z represents the lower limit and upper limit of the i-th interval, respectively; P Let be the lower limit value of the Pth interval (i.e., the last interval among the P intervals), where the upper limit value of the Pth interval is not limited. In this application, the symbol ([) represents a closed interval followed by an open interval.
[0109] In this application, for example, the duration of PTW can be measured by a multiple of a real number R (e.g., X times a real number R). In one implementation, the physical meaning of the real number R can be to represent the granularity of a time interval, such as 1.28 seconds, 2.56 seconds, etc., without limitation. In this application, X can also be understood as a quantization parameter of the duration of PTW.
[0110] For example, the PTW (Push-to-Wait) duration configured by the network device can be an integer multiple of 1.28. As an example, the PTW duration could be: 1.28 (1.28 × 1) seconds, 2.56 (1.28 × 2) seconds, 5.12 (1.28 × 4) seconds, and so on. The network device and the terminal device can agree on a protocol whereby the network device configures the PTW duration for the terminal device using multiples of transmission frequency. In other words, the PTW duration configured by the network device for the terminal device can be quantified using a certain parameter. For example, the "quantization interval" in this application can be understood as a multiple of 1.28. As an example, the quantization interval can be: 1≤X<2. In this case, it can be understood that the PTW duration configured by the network device for the terminal device is 1.28 seconds ≤X<2.56 seconds, that is, the quantization interval corresponding to [1.28 seconds, 2.56 seconds) is [1, 2). As another example, the quantization interval can be: 2≤X<4. In this case, it can be understood that the PTW duration configured by the network device for the terminal device is 2.56 seconds ≤X<5.12 seconds, that is, the quantization interval corresponding to [2.56 seconds, 5.12 seconds) is [2, 4). As yet another example, the quantization interval can be: 4≤X<10. In this case, it can be understood that the PTW duration configured by the network device for the terminal device is 5.12 seconds ≤X<12.8 seconds, that is, the quantization interval corresponding to [5.12 seconds, 12.8 seconds) is [4, 10), and so on. In the above description, the symbol ([) represents a closed interval followed by an open interval.
[0111] Based on the above scheme, in this application, as the PTW duration increases (which can also be understood as as the quantization parameter X increases), the measurement period T1 in the eDRX scenario can be dynamically adjusted (for example, the measurement period T1 increases). Thus, based on the different PTW durations configured by higher layers, the value of the measurement period T1 can be dynamically lengthened, thereby achieving better UE energy saving effect.
[0112] In another implementation, the second parameter in this application may include the evaluation period T2 in the eDRX scenario, where the evaluation period T2 may be T DRX The duration of the PTW is a positive integer multiple of R. Specifically, the duration of the PTW is X times the positive number R (where X is an integer greater than 1).
[0113] X falls into one of a pre-configured quantization interval of PTW time length (e.g., P intervals, where P is an integer greater than or equal to 2). The evaluation period T2 corresponding to the P intervals is different. As X increases, the evaluation period T2 increases. If W i ≤X<W i+1 Then the evaluation period T2 is T DRX V iMultiplied by, i is an integer greater than or equal to 1 and less than or equal to P-1, where V i+1 Greater than V i If X ≥ W P Then the evaluation period T2 is T DRX V P Times, of which X and W i W i+1 V i V i+1 All are integers greater than or equal to 1.
[0114] Based on the above scheme, in this application, as the PTW duration increases (which can also be understood as as the quantization parameter X increases), the evaluation period T2 in the eDRX scenario can be dynamically adjusted (for example, the evaluation period T2 increases). Thus, the value of the evaluation period T2 can be dynamically lengthened based on the different PTW durations configured by higher layers, thereby achieving better UE energy saving effect.
[0115] In another approach, the terminal device may not need to configure the correspondence between the first and second parameters. In this case, the terminal device can autonomously determine the value of the second parameter based on the first parameter. This allows the terminal device to autonomously extend the measurement cycle and / or evaluation cycle appropriately within each PTW duration while ensuring measurement performance, ultimately achieving energy savings and a trade-off between measurement performance and energy efficiency.
[0116] In this application, in some implementations, the period T of a specific eDRX configured by the network device for the terminal device is... eDRX The period T of DRX DRX And the duration of PTW, Z i It can be equal to W i Z i+1 It can be equal to W i+1 At this point, for measurement period T1 and evaluation period T2, the upper and lower thresholds of the quantization interval for the corresponding pre-configured PTW time length can be the same.
[0117] In this application, for a specific eDRX period T configured by the network device for the terminal device, eDRX The period T of DRX DRX And the duration of PTW, and the multiple Y of the pre-configured measurement period T1 in the protocol. i and the multiple V of the evaluation period T2 i This application does not limit the size relationship.
[0118] Step 503: The terminal device performs measurements in the eDRX scenario based on the second parameter.
[0119] For example, the terminal device can perform measurements in the eDRX scenario based on a defined measurement period T1 and / or evaluation period T2.
[0120] Figure 6 The communication method 600 provided in this application, such as Figure 6 As shown, the method includes:
[0121] Step 601: The network device determines the second parameter based on the correspondence between the first parameter and the second parameter of the extended discontinuous reception eDRX period.
[0122] The first parameter may include the duration of the paging time window (PTW) and the period T of the discontinuous reception DRX. DRX Extended period T of discontinuous reception eDRX eDRX The duration of PTW is X times the positive number R.
[0123] In one implementation, the second parameter may include the measurement period T1 in the eDRX scenario, where the measurement period T1 is T DRX The positive integer multiple of X. Specifically, X falls into one of the pre-configured quantization intervals of P PTW time lengths, where P is an integer greater than or equal to 2. The measurement periods T1 corresponding to the P intervals are different. As X increases, the measurement period T1 increases. If Z i ≤X<Z i+1 Then the measurement period T1 is T DRX Y i Multiplied by, i is an integer greater than or equal to 1 and less than or equal to P-1, where Y i+1 Greater than Y i If X ≥ Z P Then the measurement period T1 is T DRX Y P Times, where X and Z i Z i+1 Y i Y i+1 All are integers greater than or equal to 1.
[0124] In another implementation, the second parameter may include the evaluation period T2 in the eDRX scenario, where the evaluation period T2 is T DRX The positive integer multiple of X. Specifically, X falls into one of the pre-configured quantization intervals of P PTW time lengths, where P is an integer greater than or equal to 2. The evaluation period T2 corresponding to the P intervals is different. As X increases, the evaluation period T2 increases. If W i ≤X<W i+1 Then the evaluation period T2 is T DRX V iMultiplied by, i is an integer greater than or equal to 1 and less than or equal to P-1, where V i+1 Greater than V i If X ≥ W P Then the evaluation period T2 is T DRX V P Times, of which X and W i W i+1 V i V i+1 All are integers greater than or equal to 1.
[0125] Specifically, in this embodiment, the explanations of the first parameter, the second parameter, and the correspondence between the first parameter and the second parameter can be referred to the description in method 500, and will not be repeated here.
[0126] In this application, the network device may be pre-configured with a correspondence between the first parameter and the second parameter. The network device can determine the second parameter based on the configured PTW duration (which can also be understood as a quantization parameter of the PTW duration, such as X) and the correspondence.
[0127] In another implementation, the network device can pre-configure the correspondence between the first and second parameters (e.g., this correspondence can be predefined by the protocol). After determining the second parameter, the network device can modify the configuration parameters related to measurement resources based on the second parameter. For example, the network device can modify the transmission period of the synchronization signal and physical broadcast channel block (SSB) and the period parameter in the SSB measurement timing configuration (SMTC) based on the second parameter, and send the modified SSB and SMTC-related measurement configuration parameters to the terminal device. The terminal device can then perform measurements in the eDRX scenario based on these configuration parameters. For example, the network device can appropriately reduce the number of SSB transmissions during a longer PTW, thereby lengthening the SSB transmission period (and simultaneously lengthening the period parameter in the SMTC), ultimately achieving energy savings for the network device. Since the network can reduce the number of SSB transmissions, it can achieve the goal of saving power for the network device.
[0128] Step 602: The network device sends the second parameter to the terminal device and / or sends the modified configuration parameters to the terminal device.
[0129] For example, network devices can send the determined second parameter directly to the terminal device via system information block (SIB) messages or paging messages.
[0130] In some implementations, for example, network devices can send modified SSB and SMTC related measurement configuration parameters to terminal devices.
[0131] Based on the above technical solution, in this application, the network device can determine the second measurement parameter of the terminal device in the eDRX scenario based on the PTW duration configured for the terminal device, and send it to the terminal device. As the PTW duration increases (which can also be understood as as the quantization parameter X increases), the measurement period and / or evaluation period of the terminal device in the eDRX scenario determined by the network device can be dynamically adjusted (e.g., the measurement period T1 increases and / or the evaluation period T2 increases), thereby dynamically lengthening the measurement parameters and achieving better UE energy saving effect.
[0132] Figure 7 This is a specific embodiment provided by this application. In this embodiment, the network device is described using a base station as an example, and the terminal device is described using a user equipment (UE). Figure 7 As shown, the method 700 includes:
[0133] Step 701: The base station sends a superframe number to the UE.
[0134] For example, the base station can carry the Hyper-SFN superframe number in the master information block (MIB) message and the SIB1 broadcast message and send it to the UE.
[0135] In step 702, the UE can determine whether to use eDRX or DRX based on its own capabilities. When the UE determines to use eDRX, it can continue with the following steps.
[0136] Step 703: The UE sends a first request to the first network element. The first request is used to request parameters of the eDRX cycle (an example of the first parameter).
[0137] In this application, the first network element may be, for example, a mobility management entity (MME) network element, or; the first network element may be, for example, an access and mobility management function (AMF) network element.
[0138] For example, the UE can send the eDRX cycle length to the first network element in an attach request message, or the tracking area update (TAU) request.
[0139] Step 704: The first network element receives the first request and configures different eDRX periods T for the UE.eDRX And the duration of PTW.
[0140] If the first network element accepts the UE's eDRX request, it can configure different eDRX periods T for the UE according to its local policy. eDRX And the duration of PTW.
[0141] In this application, the determination of measurement parameters can be implemented in two ways: either the terminal device determines the measurement parameters based on a corresponding relationship, or the network device determines the measurement parameters and sends them to the terminal device. Specific implementation methods are as follows:
[0142] Method 1:
[0143] 705a, the first network element sends the eDRX period T to the UE. eDRX And the duration of PTW.
[0144] In one implementation, the first network element may carry T in the attach accept message or the tracking area update accept message. eDRX And the duration of PTW.
[0145] In this application, the DRX period T DRX For example, it can be sent to the UE via system messages from the base station.
[0146] 706a, UE according to eDRX period T eDRX PTW duration, T DRX The corresponding relationship between the measurement parameters is used to determine the measurement parameters (e.g., measurement period T1 (an example of the second parameter) and / or evaluation period T2 (another example of the second parameter).
[0147] In one possible implementation, for frequency range 1 (FR1) (e.g., low frequency), T can be pre-configured on the UE. eDRX PTW duration, T DRX The corresponding relationship between the measurement parameters is shown in Table 2 below, for example.
[0148] It should be noted that Table 2 below shows the correspondence of cell reselection related measurements for FR1. Table 2 can be understood as the scenario for intra-frequency measurements (for example, if the SMTC period of the intra-frequency cell being measured is >20ms, then M2 = 1.5; otherwise, M2 = 1). For inter-frequency measurements, M2 in the table below can be set to 1.5. N1 in Table 2 refers to the scaling factor; T in Table 2... measure This can be understood as the measurement period T1; T in Table 2evaluate This can be understood as the evaluation period T2.
[0149] Table 2
[0150]
[0151] As shown in Table 2, in this application, when eDRX is configured and a PTW window exists, in order to reduce the power consumption of the UE initiating search and measurement within the PTW window, the PTW time length can be divided into multiple intervals (or, in other words, the PTW time length can be divided into tiers). As the PTW time length increases, the measurement period T is appropriately increased. measure The value of .
[0152] In this application, the values or ranges corresponding to the bold text in Table 2 can be understood as being determined or designed according to the scheme of this application.
[0153] As an example, for measurement period T1, assume the network device is configured with a DRX period T for the terminal device. DRX When the duration is 0.32 seconds, for example, the PTW duration can be divided into two intervals. For example, interval #1 could be: 1.28 seconds ≤ PTW duration < 2.56 seconds, and interval #2 could be: PTW duration ≥ 2.56 seconds. Alternatively, it can be understood that, for example, if the PTW is an integer multiple of 1.28 seconds (X), interval #1 could be: 1 ≤ X < 2, and interval #2 could be: X ≥ 2.
[0154] If the network device configures the PTW duration for the terminal device to be 2.56 seconds (i.e., twice 1.28), the UE can determine that X falls into interval #2 according to the predefined correspondence in the protocol (e.g., Table 2), meaning the measurement period T1 is 0.64 seconds (i.e., twice 0.32 seconds) × N1 × M2. Compared to the measurement period T1 of 0.32 seconds (i.e., once 0.32 seconds) determined in the current technology (e.g., Table 1), the increased measurement period can save UE power consumption.
[0155] As an example, suppose the network device configures a DRX period T for the end device. DRX Similarly, when the PTW duration is 0.64 seconds, the PTW duration can be divided into two intervals. For example, interval #1 could be: 1.28 seconds ≤ PTW duration < 2.56 seconds, and interval #2 could be: PTW duration ≥ 2.56 seconds. Alternatively, it can be understood that, for example, if the PTW is an integer multiple of 1.28 seconds (X), interval #1 could be: 1 ≤ X < 2, and interval #2 could be: X ≥ 2.
[0156] If the network device configures the PTW duration for the terminal device to be 5.12 seconds (i.e., 4 times 1.28), the UE can determine that it falls into interval #2 according to the predefined correspondence in the protocol (e.g., Table 2). The corresponding measurement period T1 is 1.28 seconds (i.e., 2 times 0.64) × N1 × M2. Compared with the measurement period T1 determined in the current technology (e.g., Table 1) which is 0.64 seconds (i.e., 1 time 0.64), the measurement period is increased, which can save UE power consumption.
[0157] It should be noted that the measurement cycle in this example (e.g., Table 2) can be designed according to the technical solution of this application, and the evaluation cycle can continue to be designed with reference to existing protocols, without any limitation.
[0158] Similarly, the technical concept of this application is also applicable to the design of the evaluation cycle, as shown in Table 3 below.
[0159] Table 3
[0160]
[0161] As shown in Table 3, in this application, when eDRX is configured and a PTW window exists, in order to reduce the power consumption of the UE initiating search and measurement within the PTW window, the PTW time length can be divided into multiple intervals (or, in other words, the PTW time length can be divided into tiers). As the PTW time length increases, the evaluation period T is appropriately increased. evaluate The value of .
[0162] As an example, for evaluation period T2, assume the network device configures the DRX period T for the terminal device. DRX When the PTW duration is 0.64 seconds, for example, the PTW duration can be divided into two intervals. For example, interval #1 could be: 1.28 seconds ≤ PTW duration < 2.56 seconds, and interval #2 could be: PTW duration ≥ 2.56 seconds. Alternatively, it can be understood that, for example, if the PTW is an integer multiple of 1.28 seconds (X), interval #1 could be: 1 ≤ X < 2, and interval #2 could be: X ≥ 2.
[0163] If the network device configures the PTW duration for the terminal device to be 2.56 seconds (i.e., twice 1.28 seconds), the UE can determine whether it falls into interval #2 according to the predefined correspondence in the protocol (e.g., Table 3). The corresponding evaluation period T2 is 2.56 seconds (i.e., four times 0.64 seconds) × N1 × M2. Compared with the current technology (e.g., Table 1) where the evaluation period T2 is 1.28 seconds (i.e., twice 0.64 seconds), the increased evaluation period can save UE power consumption.
[0164] If the network device configures the PTW duration for the terminal device to be 5.12 seconds (i.e., 4 times 1.28), the UE can determine whether it falls into interval #2 according to the predefined correspondence in the protocol (e.g., Table 3), and the corresponding evaluation period T2 is 2.56 seconds (i.e., 4 times 0.64) × N1 × M2. Compared with the current technology (e.g., Table 1) where the evaluation period T2 is 1.28 seconds (i.e., 2 times 0.64), the increased evaluation period can save UE power consumption.
[0165] It should be noted that the evaluation cycle in this example (e.g., Table 3) can be designed according to the technical solution of this application, and the measurement cycle can continue to be designed with reference to the existing protocol, without any limitation.
[0166] In some embodiments, such as in Table 4 below, the measurement cycle and evaluation cycle can be designed with reference to the technical solutions provided in this application.
[0167] Table 4
[0168]
[0169] In one possible implementation, for frequency range 2 (FR2) (e.g., high frequency), T can be pre-configured on the UE. eDRX PTW duration, T DRX The corresponding relationship between the measurement parameters is shown in Table 5 below.
[0170] It should be noted that Table 5 below shows the correspondence of cell reselection related measurements for FR2. Table 5 can be understood as the scenario for intra-frequency measurements (for example, if the SMTC period of the intra-frequency cell being measured is >20ms, then M2 = 1.5; otherwise, M2 = 1). For inter-frequency measurements, M2 in the table below can be set to 1.5. N1 in Table 5 refers to the scaling factor; T in Table 5... measure This can be understood as the measurement period T1; T in Table 5 evaluate This can be understood as the evaluation period T2
[0171] Table 5
[0172]
[0173]
[0174] As an example, for measurement period T1, assume the network device is configured with a DRX period T for the terminal device. DRXWhen the PTW duration is 0.32 seconds, for example, the PTW duration can be divided into two intervals. For example, interval #1 could be: 7.68 seconds ≤ PTW duration < 15.36 seconds, and interval #2 could be: PTW duration ≥ 15.36 seconds. Alternatively, it can be understood that, for example, if the PTW is an integer multiple of 1.28 seconds (X), interval #1 could be: 6 ≤ X < 12, and interval #2 could be: X ≥ 12.
[0175] If the PTW duration configured for the terminal device by the network device is 16.64 seconds (i.e., 13 times 1.28), for the measurement period, the UE can determine that it falls into interval #2 according to the predefined correspondence in the protocol (e.g., Table 5), and the corresponding measurement period T1 is 0.64 seconds (i.e., twice 0.32 seconds) × N1 × M2. Compared with the measurement period T1 determined in the current technology (e.g., Table 1) which is 0.32 seconds (i.e., once 0.32 seconds), the measurement period is increased, which can save UE power consumption.
[0176] As an example, for measurement period T1, assume the network device is configured with a DRX period T for the terminal device. DRX When the PTW duration is 0.64 seconds, for example, the PTW duration can be divided into two intervals. For example, interval #1 could be: 6.4 seconds ≤ PTW duration < 12.8 seconds, and interval #2 could be: PTW duration ≥ 12.8 seconds. Alternatively, it can be understood that, for example, if the PTW is an integer multiple of 1.28 seconds (X), interval #1 could be: 5 ≤ X < 10, and interval #2 could be: X ≥ 10.
[0177] If the network device configures the PTW duration for the terminal device to be 12.8 seconds (i.e., 10 times 1.28), the UE can determine the measurement period T1 as 1.28 seconds (i.e., 2 times 0.64) × N1 × M2 according to the predefined correspondence in the protocol (e.g., Table 5). Compared with the current technology (e.g., Table 1) where the evaluation period T2 is 0.64 seconds (i.e., 1 time 0.64), the increased evaluation period can save UE power consumption.
[0178] Similarly, for the evaluation period T2, assuming the network device configures the DRX period T for the terminal device... DRX The time interval is 0.64s, and the PTW duration is 12.8 seconds (i.e., 10 times 1.28). At this point, the UE can determine the evaluation period T2 as 2.56 seconds (i.e., 4 times 0.64 seconds) × N1 × M2 based on the predefined correspondence in the protocol (e.g., Table 5). Compared to the current technology (e.g., Table 1) where the evaluation period T2 is 1.28 seconds (i.e., 2 times 0.64 seconds), the increased measurement period can save UE power consumption.
[0179] It should be noted that in the embodiments of frequency band 2, in some embodiments the measurement period can be designed according to the scheme provided in this application, while the evaluation period is still designed using the scheme of the existing protocol; in some embodiments, the measurement period can still be designed using the technical solution of the existing protocol, while the evaluation period can be designed using the technical solution of this application; in some embodiments, both the measurement period and the evaluation period can be designed using the technical solution of this application (e.g., Table 5).
[0180] Step 708: The UE performs measurements in the eDRX scenario based on the measurement parameters.
[0181] Method 2:
[0182] Step 705b: The first network element sends an eDRX period T to the base station. eDRX And the duration of PTW.
[0183] Step 706b, the base station according to T eDRX T DRX Determine the measurement parameters based on the PTW time length.
[0184] In this application, the correspondence (which can also be understood as a mapping relationship) can also be configured on the base station, and the base station determines the measurement parameters (e.g., measurement period and evaluation period) based on the PTW time length and the correspondence.
[0185] Specifically, the method by which the base station determines the measurement parameters based on the correspondence can be referred to the above description of the UE determining the measurement parameters, and will not be repeated here.
[0186] Step 707b: The base station sends measurement parameters to the UE.
[0187] Step 708: The UE performs measurements in the eDRX scenario based on the measurement parameters.
[0188] Based on the above technical solution, terminal equipment or network equipment can determine the measurement parameters according to the protocol definition. By dynamically extending the period of the measurement parameters based on different PTW time lengths, better UE energy saving effect can be achieved.
[0189] It is understood that in this application, "if...", "when..." and "if" all refer to the device making a corresponding processing under certain objective circumstances, and are not limited to a time, nor do they require the device to make a judgment when it is implemented, nor do they mean that there are other limitations.
[0190] It should be noted that the concepts of "high frequency" and "low frequency" in the following embodiments of this application are relative. The technical solution of this application does not limit the specific frequency bands of "high frequency" and "low frequency". The frequency bands in the following embodiments are merely illustrative examples for ease of understanding. With the evolution of technology, the specific radio frequency bands corresponding to "high frequency" and "low frequency" will also change, but all of them are within the protection scope of this application.
[0191] As an example, the low-frequency band in this application may be, for example, the low-frequency band of LTE: 700MHz, 1.8GHz, 2.1GHz or 2.6GHz, etc.; the high-frequency band in this application may be, for example, the millimeter-wave band: 24GHz, 26GHz, 28GHz, 39GHz, etc.
[0192] The above, combined with Figures 5 to 7 The communication method provided in the embodiments of this application is described in detail below. Figure 8 and Figure 9 This application introduces a communication device provided in its embodiments. It should be understood that the descriptions of the device embodiments correspond to the descriptions of the method embodiments; therefore, details not described in detail can be found in the above method embodiments, and for brevity, will not be repeated here.
[0193] The above primarily describes the solutions provided in this application from the perspective of interactions between various nodes. It is understood that each node, such as a terminal device or network device, includes corresponding hardware structures and / or software modules to perform the aforementioned functions. Those skilled in the art should recognize that, based on the units and algorithm steps of the examples described in conjunction with the embodiments disclosed herein, this application can be implemented in hardware or a combination of hardware and computer software. Whether a function is executed by hardware or by computer software driving hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.
[0194] This application embodiment can divide a terminal device or a terminal device into functional modules according to the above method examples. For example, each function can be divided into its own functional modules, or two or more functions can be integrated into one processing module. The integrated modules can be implemented in hardware or as software functional modules. It should be noted that the module division in this application embodiment is illustrative and only represents one logical functional division. In actual implementation, there may be other division methods. The following description uses the division of functional modules according to each function as an example.
[0195] Figure 8This is a schematic block diagram of a communication device 100 provided in an embodiment of this application. As shown, the device 100 may include a transceiver unit 110 and a processing unit 120.
[0196] In one possible design, the device 100 can be a terminal device as described in the above method embodiments, or it can be a chip used to implement the functions of the terminal device in the above method embodiments. It should be understood that the device 100 can correspond to the terminal device in methods 400, 500, and 700 according to the embodiments of this application, and the device 100 can execute the steps corresponding to the terminal device in methods 400, 500, and 700 of the embodiments of this application. It should be understood that the specific process of each unit executing the above-described corresponding steps has been described in detail in the above method embodiments, and for the sake of brevity, it will not be repeated here.
[0197] Specifically, the transceiver unit is used to receive a first parameter of the extended discontinuous reception (eDRX) period. This first parameter is used to determine a second parameter measured in the eDRX scenario. The first parameter includes the duration of the paging time window (PTW) and the period T of the discontinuous reception DRX. DRX Extended period T of discontinuous reception eDRX eDRX The processing unit is used to determine the second parameter measured in the eDRX scenario based on the correspondence between the first parameter and the second parameter. The second parameter includes the measurement period T1 in the eDRX scenario, wherein the PTW time length is X times a positive number R, and the measurement period T1 is the value of T. DRX The value of X is a positive integer multiple of X, and X falls into one of the pre-configured quantization intervals of P PTW time lengths, where P is an integer greater than or equal to 2. The measurement periods T1 corresponding to the P intervals are different. As X increases, the measurement period T1 increases. If Z i ≤X<Z i+1 Then the measurement period T1 is the T DRX Y i The multiple, where i is an integer greater than or equal to 1 and less than or equal to P-1, where Y i+1 Greater than Y i If X ≥ Z P Then the measurement period T1 is the T DRX Y P Times, where X and Z i Z i+1 Y i Y i+1 All are integers greater than or equal to 1, and the processing unit is used to perform measurements in the eDRX scenario based on the second parameter.
[0198] In some embodiments, the transceiver unit is configured to receive a first parameter of the extended discontinuous reception (eDRX) period, the first parameter being used to determine a second parameter measured in the eDRX scenario, the first parameter including the duration of the paging time window (PTW) and the period T of the discontinuous reception DRX. DRX Extended period T of discontinuous reception eDRX eDRX The processing unit is used to determine the second parameter measured in the eDRX scenario based on the correspondence between the first parameter and the second parameter. The second parameter includes the evaluation period T2 in the eDRX scenario, wherein the PTW time length is X times a positive number R, and the evaluation period T2 is the time length of T. DRX The value of X is a positive integer multiple of X, and X falls into one of the pre-configured quantization intervals of P PTW time lengths, where P is an integer greater than or equal to 2. The evaluation period T2 corresponding to the P intervals is different. As X increases, the evaluation period T2 increases. If W i ≤X<W i+1 Then the evaluation period T2 is the T DRX V i The multiple, where i is an integer greater than or equal to 1 and less than or equal to P-1, where V i+1 Greater than V i If X ≥ W P Then the evaluation period T2 is the T DRX V P Times, of which X and W i W i+1 V i V i+1 All are integers greater than or equal to 1, and the processing unit is used to perform measurements in the eDRX scenario based on the second parameter.
[0199] In one possible design, the device 100 can be a network device in the above method embodiments, or it can be a chip for implementing the functions of the network device in the above method embodiments. It should be understood that the device 100 can correspond to the network device in methods 500, 600, and 700 according to the embodiments of this application, and the device 100 can execute the steps corresponding to the network device in methods 500, 600, and 700 of the embodiments of this application. It should be understood that the specific process of each unit executing the above-described corresponding steps has been described in detail in the above method embodiments, and for the sake of brevity, it will not be repeated here.
[0200] Specifically, the processing unit is used to determine the second parameter based on the correspondence between the first parameter and the second parameter of the extended discontinuous reception (eDRX) period, wherein the first parameter includes the duration of the paging time window (PTW) and the period T of the discontinuous reception DRX. DRXExtended period T of discontinuous reception eDRX eDRX The second parameter includes the measurement period T1 in the eDRX scenario, wherein the PTW duration is X times a positive number R, and the measurement period T1 is the value of T. DRX The value of X is a positive integer multiple of X, and X falls into one of the pre-configured quantization intervals of P PTW time lengths, where P is an integer greater than or equal to 2. The measurement periods T1 corresponding to the P intervals are different. As X increases, the measurement period T1 increases. If Z i ≤X<Z i+1 Then the measurement period T1 is the T DRX Y i The multiple, where i is an integer greater than or equal to 1 and less than or equal to P-1, where Y i+1 Greater than Y i If X ≥ Z P Then the measurement period T1 is the T DRX Y P Times, where X and Z i Z i+1 Y i Y i+1 All parameters are integers greater than or equal to 1. The transceiver unit is used to send the second parameter and / or the processing unit is used to modify the configuration parameters related to the measurement resources according to the second parameter, and instruct the transceiver unit to send the modified configuration parameters to the terminal device.
[0201] In some embodiments, the processing unit is configured to determine the second parameter based on the correspondence between the first parameter and the second parameter of the extended discontinuous reception (eDRX) period. The first parameter includes the duration of the paging time window (PTW), the period of discontinuous reception (DRX) (TDRX), and the period of extended discontinuous reception (eDRX) (TeDRX). The second parameter includes the evaluation period T2 in the eDRX scenario. The duration of the PTW is X times a positive number R, and the evaluation period T2 is a positive integer multiple of TDRX. X falls within one of the pre-configured quantization intervals of P PTW durations, where P is an integer greater than or equal to 2. The evaluation periods T2 corresponding to the P intervals are different. As X increases, the evaluation period T2 increases. If W... i ≤X<W i+1 Then the evaluation period T2 is the T DRX V i The multiple, where i is an integer greater than or equal to 1 and less than or equal to P-1, where V i+1 Greater than V i If X ≥ W P Then the evaluation period T2 is the TDRX V P Times, of which X and W i W i+1 V i V i+1 All parameters are integers greater than or equal to 1. The transceiver unit is used to send the second parameter and / or the processing unit is used to modify the configuration parameters related to the measurement resources according to the second parameter, and instruct the transceiver unit to send the modified configuration parameters to the terminal device.
[0202] Figure 9 This is a schematic block diagram of a communication device 200 provided in an embodiment of this application. As shown, the device 200 includes at least one processor 220. The processor 220 is coupled to a memory and is used to execute instructions stored in the memory to transmit and / or receive signals. Optionally, the device 200 also includes a memory 230 for storing instructions. Optionally, the device 200 also includes a transceiver 210, and the processor 220 controls the transceiver 210 to transmit and / or receive signals.
[0203] It should be understood that the processor 220 and memory 230 described above can be combined into a single processing device, with the processor 220 executing the program code stored in the memory 230 to achieve the aforementioned functions. In specific implementations, the memory 230 can be integrated into the processor 220 or independent of the processor 220.
[0204] It should also be understood that transceiver 210 may include a transceiver (or receiver) and a transmitter (or transmitter). The transceiver may further include an antenna, and the number of antennas may be one or more. Transceiver 210 may be a communication interface or interface circuitry.
[0205] Specifically, the transceiver 210 in the device 200 can correspond to the transceiver unit 110 in the device 100, and the processor 220 in the device 200 can correspond to the processing unit 120 in the device 200.
[0206] It should be understood that the specific process by which each transceiver processor performs the corresponding steps described above has been explained in detail in the above method embodiments, and will not be repeated here for the sake of brevity.
[0207] Figure 10 This is a schematic diagram of the terminal device provided in this application. The following is in conjunction with… Figure 10 The structure and function of the terminal device are described. The terminal device 30 may be... Figure 4 The terminal device in methods 500 and 600 shown in the figure. For example... Figure 10 As shown, the terminal device 30 includes a processor 31 and a transceiver 32.
[0208] Optionally, the transceiver 32 may include a control circuit and an antenna, wherein the control circuit can be used for the conversion of baseband signals and radio frequency signals and the processing of radio frequency signals, and the antenna can be used for transmitting and receiving radio frequency signals.
[0209] Optionally, the terminal device 30 may also include a memory, input / output devices, etc.
[0210] The processor 31 can be used to process communication protocols and communication data, control the entire terminal device, execute software programs, and process the data of the software programs, such as supporting the terminal device to execute the aforementioned combination. Figures 5 to 7 The corresponding operations are described. The memory is primarily used to store software programs and data. When the terminal device is powered on, the processor 31 can read the software program from the memory, interpret and execute the instructions of the software program, and process the data of the software program.
[0211] Figure 11 This is a schematic diagram of the network device provided in this application. The following is in conjunction with… Figure 11 Describe the structure and function of network devices. Figure 11 This is a schematic diagram of the structure of the network device 10 provided in this application embodiment. The network device 10 can be... Figure 5 The network device in method 500 shown in the figure. Figure 12 As shown, the network device 10 includes a transceiver 1010 and a processor 1020.
[0212] Optionally, the transceiver 1010 may be referred to as a remote radio unit (RRU), transceiver unit, transceiver, or transceiver circuit, etc. The transceiver 1010 may include at least one antenna 1011 and a radio frequency unit 1012. The transceiver 1010 can be used for transmitting and receiving radio frequency signals and for converting radio frequency signals to baseband signals.
[0213] Optionally, the network device 10 includes one or more baseband units (BBUs) 1020. Each baseband unit 1020 includes a processor 1022. The baseband unit 1020 is primarily used for baseband processing, such as channel coding, multiplexing, modulation, and spread spectrum, as well as for controlling the base station. The transceiver 1010 and the baseband unit 1020 can be physically located together or physically separated, i.e., a distributed base station.
[0214] In one example, the baseband unit 1020 may consist of one or more boards. Multiple boards can collectively support a single access standard wireless access network, or they can each support wireless access networks with different access standards. The baseband unit 1020 includes a processor 1022. The processor 1022 can be used to control the network device 10 to perform the aforementioned combinations. Figures 5 to 7 The corresponding operations in the described method embodiments. Optionally, the baseband unit 1020 may also include a memory 1021 for storing necessary instructions and data.
[0215] Figure 12 This is another schematic diagram of the wireless communication device provided in this application. For example... Figure 12 As shown, ANT_1 represents the first antenna, ANT_N represents the Nth antenna, and N is a positive integer greater than 1. Tx represents the transmit path, and Rx represents the receive path; different numbers represent different paths. Each path can represent a signal processing channel. Specifically, FBRx represents the feedback receive path, PRx represents the main receive path, and DRx represents the diversity receive path. HB represents high frequency, and LB represents low frequency; these refer to the relative high and low frequencies. BB represents baseband. It should be understood that... Figure 12 The labels and components shown are for illustrative purposes only and represent one possible implementation. Other implementations are also included in this application. For example, a wireless communication device may include more or fewer paths and more or fewer components.
[0216] The application subsystem may include one or more processors. Multiple processors may be multiple processors of the same type, or a combination of different types of processors. In this application, the processor may be a general-purpose processor or a processor designed for a specific domain. For example, the processor may be a central processing unit (CPU), a digital signal processor (DSP), or a microcontroller (MCU). The processor may also be a graphics processing unit (GPU), an image signal processor (ISP), an audio signal processor (ASP), and an AI processor specifically designed for artificial intelligence (AI) applications. AI processors include, but are not limited to, neural network processing units (NPUs), tensor processing units (TPUs), and processors referred to as AI engines.
[0217] Radio frequency (RF) integrated circuits (including RFIC 1 and one or more optional RFIC 2) and RF front-end devices can together form an RF subsystem. Depending on the signal reception or transmission path, the RF subsystem can also be divided into an RF receive path and an RF transmit path. The RF receive path receives RF signals via an antenna, processes the RF signals (e.g., amplification, filtering, and down-conversion) to obtain a baseband signal, and then transmits it to the baseband subsystem. The RF transmit path receives baseband signals from the baseband subsystem, processes the baseband signals (e.g., up-conversion, amplification, and filtering) to obtain an RF signal, and finally radiates the RF signal into space via an antenna. RF integrated circuits can be referred to as RF processing chips or RF chips.
[0218] Similar to the radio frequency (RF) subsystem, which primarily handles RF signal processing, the baseband subsystem primarily processes baseband signals. The baseband subsystem can extract useful information or data bits from the baseband signals, or convert information or data bits into baseband signals to be transmitted. These information or data bits can represent user data such as voice, text, and video, or control information. For example, the baseband subsystem can perform signal processing operations such as modulation and demodulation, encoding and decoding. The baseband signal processing operations are not entirely the same for different wireless access technologies, such as 5G NR and 4G LTE.
[0219] Similar to the application subsystem, the baseband subsystem may also include one or more processors. Furthermore, the baseband subsystem may include one or more hardware accelerators (HACs). Hardware accelerators can be used to perform sub-functions with higher processing overhead, such as data packet assembly and parsing, and data packet encryption and decryption. These sub-functions can also be implemented using general-purpose processors, but due to performance or cost considerations, using hardware accelerators may be more suitable. In specific implementations, hardware accelerators are primarily implemented using application-specific integrated circuits (ASICs). Of course, hardware accelerators can also include one or more relatively simple processors, such as MCUs.
[0220] A baseband subsystem can be integrated into one or more chips, which may be called a baseband processing chip or baseband chip. Alternatively, the baseband subsystem can be a standalone chip, which may be called a modem or modem chip. Baseband subsystems can be manufactured and sold as modem chips. Modem chips are sometimes also referred to as baseband processors or mobile processors. Furthermore, the baseband subsystem can be further integrated into a larger chip, manufactured and sold as a larger chip. This larger chip may be called a system-on-a-chip (SoC), or simply a SoC chip. The software components of the baseband subsystem can be built into the chip's hardware components before the chip leaves the factory, or imported into the chip's hardware components from other non-volatile memory after the chip leaves the factory, or these software components can be downloaded and updated online via a network.
[0221] In addition, the wireless communication device may also include a memory, for example Figure 12 The system includes mains memory and large-capacity storage. Additionally, the application subsystem and baseband subsystem may each include one or more caches.
[0222] In implementation, each step of the above method can be completed by integrated logic circuits in the processor's hardware or by instructions in software. The steps of the method disclosed in the embodiments of this application can be directly implemented by a hardware processor, or by a combination of hardware and software modules in the processor. The software modules can reside in random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, or other mature storage media in the art. This storage medium is located in memory, and the processor reads information from the memory and, in conjunction with its hardware, completes the steps of the above method. To avoid repetition, detailed descriptions are omitted here.
[0223] It should be noted that the processor in the embodiments of this application can be an integrated circuit chip with signal processing capabilities. During implementation, each step of the above method embodiments can be completed by the integrated logic circuits in the processor's hardware or by instructions in software form. The processor can be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. It can implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of this application. The general-purpose processor can be a microprocessor or any conventional processor. The steps of the methods disclosed in the embodiments of this application can be directly embodied in the execution of a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor. The software modules can be located in random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, or other mature storage media in the art. This storage medium is located in memory; the processor reads information from the memory and, in conjunction with its hardware, completes the steps of the above method.
[0224] It is understood that the memory in the embodiments of this application can be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory. The non-volatile memory can be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. The volatile memory can be random access memory (RAM), which is used as an external cache. By way of example, but not limitation, many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous-link dynamic random access memory (SLDRAM), and direct memory bus RAM (DR RAM). It should be noted that the memory used in the systems and methods described herein is intended to include, but is not limited to, these and any other suitable types of memory.
[0225] According to the method provided in the embodiments of this application, this application also provides a computer program product, which stores computer program code. When the computer program code is run on a computer, the computer executes the method of any one of the embodiments of method 500, method 600, and method 700.
[0226] According to the method provided in the embodiments of this application, this application also provides a computer-readable medium storing program code, which, when run on a computer, causes the computer to perform the method of any one of the embodiments of method 500, method 600, and method 700.
[0227] According to the method provided in the embodiments of this application, this application also provides a system that includes the aforementioned apparatus or device.
[0228] In the above embodiments, implementation can be achieved, in whole or in part, through software, hardware, firmware, or any combination thereof. When implemented in software, it can be implemented, in whole or in part, as a computer program product. The computer program product includes one or more computer instructions. When the computer instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of this application are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions can be transmitted from one website, computer, server, or data center to another via wired (e.g., coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium can be any available medium accessible to a computer or a data storage device such as a server or data center that integrates one or more available media. The available media may be magnetic media (e.g., floppy disks, hard disks, magnetic tapes), optical media (e.g., high-density digital video discs (DVDs)), or semiconductor media (e.g., solid-state disks (SSDs)).
[0229] In the above-described device embodiments, the network-side devices correspond to the terminal devices and the network-side devices or terminal devices in the method embodiments. Corresponding modules or units execute corresponding steps. For example, the communication unit (transceiver) executes the receiving or sending steps in the method embodiments, while other steps besides sending and receiving can be executed by the processing unit (processor). The specific functions of each unit can be found in the corresponding method embodiments. There can be one or more processors.
[0230] As used in this specification, the terms "component," "module," "system," etc., are used to refer to computer-related entities, hardware, firmware, combinations of hardware and software, software, or software in execution. For example, a component can be, but is not limited to, a process running on a processor, a processor, an object, an executable file, an execution thread, a program, and / or a computer. As illustrated, applications running on computing devices and computing devices can both be components. One or more components may reside in a process and / or an execution thread, and components may be located on a single computer and / or distributed among two or more computers. Furthermore, these components can be executed from various computer-readable media on which various data structures are stored. Components can communicate, for example, via local and / or remote processes based on signals having one or more data packets (e.g., data from two components interacting with another component between a local system, a distributed system, and / or a network, such as the Internet interacting with other systems via signals).
[0231] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.
[0232] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.
[0233] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between apparatuses or units may be electrical, mechanical, or other forms.
[0234] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.
[0235] In addition, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.
[0236] If the aforementioned functions are implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or a portion of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.
[0237] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.
Claims
1. A communication method, characterized in that, include: The terminal device receives a first parameter of the extended discontinuous reception (eDRX) period from the network device. This first parameter is used to determine a second parameter measured in the eDRX scenario. The first parameter includes the duration of the paging time window (PTW) and the period T of the discontinuous reception DRX. DRX Extended period T of discontinuous reception eDRX eDRX ; The terminal device determines the second parameter measured in the eDRX scenario based on the correspondence between the first parameter and the second parameter. The second parameter includes the measurement period T1 in the eDRX scenario, wherein the PTW time length is X times a positive number R, and the measurement period T1 is the value of T. DRX multiples of positive integers X falls within one of the pre-configured quantization intervals of P PTW time lengths, where P is an integer greater than or equal to 2. The measurement periods T1 corresponding to the P intervals are different, and as X increases, the measurement period T1 increases. If Z i ≤X<Z i+1 Then the measurement period T1 is the T DRX Y i The multiple, where i is an integer greater than or equal to 1 and less than or equal to P-1, where Y i+1 Greater than Y i ; If X≥Z P Then the measurement period T1 is the T DRX Y P Times, where X and Z i Z i+1 Y i Y i+1 All are integers greater than or equal to 1. The terminal device performs measurements in the eDRX scenario based on the second parameter.
2. A communication method, characterized in that, include: The terminal device receives a first parameter of the extended discontinuous reception (eDRX) period from the network device. This first parameter is used to determine a second parameter measured under the eDRX scenario. The first parameter includes the duration of the paging time window (PTW) and the period T of the discontinuous reception DRX. DRX Extended period T of discontinuous reception eDRX eDRX ; The terminal device determines the second parameter measured in the eDRX scenario based on the correspondence between the first parameter and the second parameter. The second parameter includes the evaluation period T2 in the eDRX scenario, wherein the PTW time length is X times a positive number R, and the evaluation period T2 is the time length of T. DRX multiples of positive integers X falls within one of the pre-configured quantization intervals of P PTW time lengths, where P is an integer greater than or equal to 2. The evaluation period T2 corresponding to the P intervals is different, and as X increases, the evaluation period T2 increases. If W i ≤X<W i+1 Then the evaluation period T2 is the T DRX V i The multiple, where i is an integer greater than or equal to 1 and less than or equal to P-1, where V i+1 Greater than V i ; If X ≥ W P Then the evaluation period T2 is the T DRX V P Times, of which X and W i W i+1 V i V i+1 All are integers greater than or equal to 1. The terminal device performs measurements in the eDRX scenario based on the second parameter.
3. The method according to any one of claims 1 or 2, characterized in that, The correspondence between the first parameter and the second parameter is predefined by the protocol.
4. The method according to claim 1 or 2, characterized in that, The positive number R is a real number representing the time interval granularity.
5. The method according to claim 1 or 2, characterized in that, The positive number R is 1.28 seconds.
6. A communication method, characterized in that, include: The network device determines the second parameter based on the correspondence between the first and second parameters of the extended discontinuous reception (eDRX) period. The first parameter includes the duration of the paging time window (PTW) and the period T of the discontinuous reception DRX. DRX Extended period T of discontinuous reception eDRX eDRX The second parameter includes the measurement period T1 in the eDRX scenario, wherein the PTW duration is X times a positive number R, and the measurement period T1 is the value of T. DRX multiples of positive integers X falls within one of the pre-configured quantization intervals of P PTW time lengths, where P is an integer greater than or equal to 2. The measurement periods T1 corresponding to the P intervals are different, and as X increases, the measurement period T1 increases. If Z i ≤X<Z i+1 Then the measurement period T1 is the T DRX Y i The multiple, where i is an integer greater than or equal to 1 and less than or equal to P-1, where Y i+1 Greater than Y i ; If X≥Z P Then the measurement period T1 is the T DRX Y P Times, where X and Z i Z i+1 Y i Y i+1 All are integers greater than or equal to 1. The network device sends the second parameter to the terminal device and / or the network device modifies the configuration parameters related to network device measurement resources according to the second parameter, and sends the modified configuration parameters to the terminal device.
7. A communication method, characterized in that, include: The network device determines the second parameter based on the correspondence between the first and second parameters of the extended discontinuous reception (eDRX) period. The first parameter includes the duration of the paging time window (PTW) and the period T of the discontinuous reception DRX. DRX Extended period T of discontinuous reception eDRX eDRX The second parameter includes the evaluation period T2 in the eDRX scenario, wherein the PTW time length is X times a positive number R, and the evaluation period T2 is the time of T. DRX multiples of positive integers X falls within one of the pre-configured quantization intervals of P PTW time lengths, where P is an integer greater than or equal to 2. The evaluation period T2 corresponding to the P intervals is different, and as X increases, the evaluation period T2 increases. If W i ≤X<W i+1 Then the evaluation period T2 is the T DRX V i The multiple, where i is an integer greater than or equal to 1 and less than or equal to P-1, where V i+1 Greater than V i ; If X ≥ W P Then the evaluation period T2 is the T DRX V P Times, of which X and W i W i+1 V i V i+1 All are integers greater than or equal to 1. The network device sends the second parameter to the terminal device and / or the network device modifies the configuration parameters related to network device measurement resources according to the second parameter, and sends the modified configuration parameters to the terminal device.
8. The method according to any one of claims 6 or 7, characterized in that, The correspondence between the first parameter and the second parameter is predefined by the protocol.
9. The method according to claim 6 or 7, characterized in that, The positive number R is a real number representing the time interval granularity.
10. The method according to claim 6 or 7, characterized in that, The positive number R is 1.28 seconds.
11. A communication device, characterized in that, include: Transceiver unit and processing unit The transceiver unit is used to receive a first parameter of the extended discontinuous reception (eDRX) period. The first parameter is used to determine a second parameter measured in the eDRX scenario. The first parameter includes the duration of the paging time window (PTW) and the period T of the discontinuous reception DRX. DRX Extended period T of discontinuous reception eDRX eDRX ; The processing unit is used to determine the second parameter measured in the eDRX scenario based on the correspondence between the first parameter and the second parameter. The second parameter includes the measurement period T1 in the eDRX scenario, wherein the PTW time length is X times a positive number R, and the measurement period T1 is the value of T. DRX multiples of positive integers X falls within one of the pre-configured quantization intervals of P PTW time lengths, where P is an integer greater than or equal to 2. The measurement periods T1 corresponding to the P intervals are different, and as X increases, the measurement period T1 increases. If Z i ≤X<Z i+1 Then the measurement period T1 is the T DRX Y i The multiple, where i is an integer greater than or equal to 1 and less than or equal to P-1, where Y i+1 Greater than Y i ; If X≥Z P Then the measurement period T1 is the T DRX Y P Times, where X and Z i Z i+1 Y i Y i+1 All are integers greater than or equal to 1. The processing unit is used to perform measurements in the eDRX scenario based on the second parameter.
12. A communication device, characterized in that, include: Transceiver unit and processing unit The transceiver unit is used to receive a first parameter of the extended discontinuous reception (eDRX) period. The first parameter is used to determine a second parameter measured in the eDRX scenario. The first parameter includes the duration of the paging time window (PTW) and the period T of the discontinuous reception DRX. DRX Extended period T of discontinuous reception eDRX eDRX ; The processing unit is used to determine the second parameter measured in the eDRX scenario based on the correspondence between the first parameter and the second parameter. The second parameter includes the evaluation period T2 in the eDRX scenario, wherein the PTW time length is X times a positive number R, and the evaluation period T2 is the time length of T. DRX multiples of positive integers X falls within one of the pre-configured quantization intervals of P PTW time lengths, where P is an integer greater than or equal to 2. The evaluation period T2 corresponding to the P intervals is different, and as X increases, the evaluation period T2 increases. If W i ≤X<W i+1 Then the evaluation period T2 is the T DRX V i The multiple, where i is an integer greater than or equal to 1 and less than or equal to P-1, where V i+1 Greater than V i ; If X ≥ W P Then the evaluation period T2 is the T DRX V P Times, of which X and W i W i+1 V i V i+1 All are integers greater than or equal to 1. The processing unit is used to perform measurements in the eDRX scenario based on the second parameter.
13. The apparatus according to any one of claims 11 or 12, characterized in that, The correspondence between the first parameter and the second parameter is predefined by the protocol.
14. The apparatus according to claim 11 or 12, characterized in that, The positive number R is a real number representing the time interval granularity.
15. The apparatus according to claim 11 or 12, characterized in that, The positive number R is 1.28 seconds.
16. A communication device, characterized in that, include: Transceiver unit and processing unit The processing unit is used to determine the second parameter based on the correspondence between the first parameter and the second parameter of the extended discontinuous reception (eDRX) period, wherein the first parameter includes the duration of the paging time window (PTW) and the period T of the discontinuous reception DRX. DRX Extended period T of discontinuous reception eDRX eDRX The second parameter includes the measurement period T1 in the eDRX scenario, wherein the PTW duration is X times a positive number R, and the measurement period T1 is the value of T. DRX multiples of positive integers X falls within one of the pre-configured quantization intervals of P PTW time lengths, where P is an integer greater than or equal to 2. The measurement periods T1 corresponding to the P intervals are different, and as X increases, the measurement period T1 increases. If Z i ≤X<Z i+1 Then the measurement period T1 is the T DRX Y i The multiple, where i is an integer greater than or equal to 1 and less than or equal to P-1, where Y i+1 Greater than Y i ; If X≥Z P Then the measurement period T1 is the T DRX Y P Times, where X and Z i Z i+1 Y i Y i+1 All are integers greater than or equal to 1. The transceiver unit is used to send the second parameter and / or the processing unit is used to modify the configuration parameters related to the measurement resources according to the second parameter, and instruct the transceiver unit to send the modified configuration parameters to the terminal device.
17. A communication device, characterized in that, include: Transceiver unit and processing unit The processing unit is used to determine the second parameter based on the correspondence between the first parameter and the second parameter of the extended discontinuous reception (eDRX) period, wherein the first parameter includes the duration of the paging time window (PTW) and the period T of the discontinuous reception DRX. DRX Extended period T of discontinuous reception eDRX eDRX The second parameter includes the evaluation period T2 in the eDRX scenario, wherein the PTW time length is X times a positive number R, and the evaluation period T2 is the time of T. DRX multiples of positive integers X falls within one of the pre-configured quantization intervals of P PTW time lengths, where P is an integer greater than or equal to 2. The evaluation period T2 corresponding to the P intervals is different, and as X increases, the evaluation period T2 increases. If W i ≤X<W i+1 Then the evaluation period T2 is the T DRX V i The multiple, where i is an integer greater than or equal to 1 and less than or equal to P-1, where V i+1 Greater than V i ; If X ≥ W P Then the evaluation period T2 is the T DRX V P Times, of which X and W i W i+1 V i V i+1 All are integers greater than or equal to 1. The transceiver unit is used to send the second parameter and / or the processing unit is used to modify the configuration parameters related to the measurement resources according to the second parameter, and instruct the transceiver unit to send the modified configuration parameters to the terminal device.
18. The apparatus according to any one of claims 16 or 17, characterized in that, The correspondence between the first parameter and the second parameter is predefined by the protocol.
19. The apparatus according to claim 16 or 17, characterized in that, The positive number R is a real number representing the time interval granularity.
20. The apparatus according to claim 16 or 17, characterized in that, The positive number R is 1.28 seconds.
21. A computer-readable storage medium, characterized in that, The computer-readable medium stores a computer program that, when run on a computer, causes the computer to perform the method as claimed in any one of claims 1 to 5 or 6 to 10.
22. A computer program product, characterized in that, The computer program product includes: a computer program that, when run, causes a computer to perform the method as claimed in any one of claims 1 to 5 or 6 to 10.
23. A processor, characterized in that, include: The processor includes an input circuit, an output circuit, and a processing circuit, wherein the processing circuit is configured to receive signals through the input circuit and transmit signals through the output circuit, causing the processor to perform the method as described in any one of claims 1 to 5 or 6 to 10.
24. A chip system, characterized in that, Includes a processor for retrieving and running a computer program from memory, causing a device on which the chip system is mounted to perform the method as claimed in any one of claims 1 to 5 or 6 to 10.
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