Method and apparatus for discontinuous reception

Abstract

The application discloses a method and device for discontinuous reception, which comprises the following steps: when the transmission parameter used by a terminal device for data transmission changes, the terminal device adjusts the DRX parameter; and the terminal device monitors the PDCCH based on the adjusted DRX parameter. Therefore, when the transmission parameter changes, the terminal device can dynamically adjust the DRX parameter and monitor the PDCCH by using the adjusted DRX parameter, so that the terminal device can effectively monitor the downlink control channel when the transmission parameter changes.

Description

Technical Field

[0001] This application relates to the field of communications, and more specifically, to methods and apparatus for discontinuous reception (DRX). Background Technology

[0002] To save power for terminal devices, the DRX mechanism was introduced. Network devices can be configured to "wake up" at a predetermined time and listen to the downlink control channel during wake-up, or to "sleep" at a predetermined time and not listen to the downlink control channel during sleep. This way, if the network device has data to transmit to the terminal device, it can schedule the terminal device during its wake-up time, while the terminal device can reduce power consumption during its sleep time.

[0003] In 5G systems, the transmission parameters of terminal devices can change flexibly, which may affect the terminal devices' ability to monitor the control channel. Therefore, ensuring that terminal devices can effectively monitor the downlink control channel in 5G systems is a pressing issue that needs to be addressed. Summary of the Invention

[0004] This application provides a method and apparatus for discontinuous reception, which can ensure that the terminal device can effectively monitor the downlink control channel.

[0005] In a first aspect, a method for discontinuous reception is provided, comprising: when the transmission parameters used by the terminal device for data transmission change, the terminal device adjusts the DRX parameters; and the terminal device monitors the PDCCH based on the adjusted DRX parameters.

[0006] Therefore, when the transmission parameters change, the terminal device can dynamically adjust the DRX parameters and use the adjusted DRX parameters to listen to the PDCCH, thereby ensuring that the terminal device can effectively monitor the downlink control channel when the transmission parameters change.

[0007] In one possible implementation, the change in transmission parameters includes a change in the transmission bandwidth portion (BWP).

[0008] In one possible implementation, the terminal device adjusts the DRX parameters by: the terminal device adjusting the DRX parameters to DRX parameters corresponding to a first set of basic parameters according to the mapping relationship between multiple sets of basic parameters and multiple DRX parameters, wherein the first set of basic parameters is the set of basic parameters used on the changed BWP.

[0009] In one possible implementation, the terminal device adjusts the DRX parameters by: the terminal device adjusting the DRX parameters to DRX parameters corresponding to a second basic parameter set based on the mapping relationship between multiple basic parameter sets and multiple DRX parameters, wherein the second basic parameter set is the basic parameter set with the smallest subcarrier spacing.

[0010] In one possible implementation, the terminal device adjusts the DRX parameters by: the terminal device adjusting the DRX parameters to a specific DRX parameter, wherein the specific DRX parameter is pre-configured.

[0011] In one possible implementation, the change in transmission parameters includes a change in the transmission bandwidth portion (BWP) and a change in the basic parameter set.

[0012] In one possible implementation, the terminal device adjusts the DRX parameters by: the terminal device adjusting the DRX parameters to correspond to the changed basic parameter sets based on the mapping relationship between multiple basic parameter sets and multiple DRX parameters.

[0013] In one possible implementation, the terminal device adjusts the DRX parameters by: the terminal device adjusting the DRX parameters to DRX parameters corresponding to a second basic parameter set based on the mapping relationship between multiple basic parameter sets and multiple DRX parameters, wherein the second basic parameter set is the basic parameter set with the smallest subcarrier spacing.

[0014] In one possible implementation, the terminal device adjusts the DRX parameters by: the terminal device adjusting the DRX parameters to a specific DRX parameter, wherein the specific DRX parameter is pre-configured.

[0015] In one possible implementation, the minimum subcarrier spacing is 15 kHz.

[0016] In one possible implementation, before the terminal device adjusts the DRX parameters, the method further includes: the terminal device receiving configuration information sent by the network device, the configuration information being used to indicate the mapping relationship; or, the terminal device obtaining the mapping relationship pre-existing on the terminal device.

[0017] In one possible implementation, the DRX parameters include a DRX duration timer and / or a DRX slot offset.

[0018] Secondly, a terminal device is provided that can perform the operations of the terminal device in the first aspect or any optional implementation thereof. Specifically, the terminal device may include a terminal device for performing the operations of the first aspect or any possible implementation thereof.

[0019] Thirdly, a terminal device is provided, comprising a processor, a transceiver, and a memory. The processor, transceiver, and memory communicate with each other via internal interconnection. The memory stores instructions, and the processor executes the instructions stored in the memory. When the processor executes the instructions stored in the memory, the execution causes the terminal device to perform a method of the first aspect or any possible implementation thereof, or the execution causes the terminal device to implement the terminal device provided in the second aspect.

[0020] Fourthly, a system-on-a-chip (SoC) is provided, comprising an input interface, an output interface, a processor, and a memory. The processor is used to execute instructions stored in the memory. When the instructions are executed, the processor can implement the methods described in the first aspect or any possible implementation thereof.

[0021] Fifthly, a computer program product including instructions is provided, which, when run on a computer, causes the computer to perform the methods described in the first aspect or any possible implementation thereof. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of a wireless communication system according to an embodiment of this application.

[0023] Figure 2 This is a schematic diagram of the DRX cycle.

[0024] Figure 3 This is a schematic diagram illustrating the impact of changes in transmission parameters on control channel monitoring.

[0025] Figure 4 This is a schematic flowchart of a method for discontinuous reception according to an embodiment of this application.

[0026] Figure 5 This is a schematic block diagram of a terminal device according to an embodiment of this application.

[0027] Figure 6 This is a schematic structural diagram of a terminal device according to an embodiment of this application.

[0028] Figure 7 This is a schematic structural diagram of a system chip according to an embodiment of this application. Detailed Implementation

[0029] The technical solutions of this application embodiment can be applied to various communication systems, such as: Global System of Mobile communication (GSM), Code Division Multiple Access (CDMA), Wideband Code Division Multiple Access (WCDMA), General Packet Radio Service (GPRS), Long Term Evolution (LTE), LTE Frequency Division Duplex (FDD), LTE Time Division Duplex (TDD), Universal Mobile Telecommunication System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX), or future 5G systems, etc.

[0030] Figure 1 This application illustrates a wireless communication system 100 used in an embodiment of this application. The wireless communication system 100 may include a network device 110. The network device 100 may be a device that communicates with terminal devices. The network device 100 can provide communication coverage for a specific geographical area and can communicate with terminal devices (e.g., UEs) located within that coverage area. Optionally, the network device 100 may be a base station (BTS) in a GSM or CDMA system, a base station (NodeB, NB) in a WCDMA system, an evolved NodeB (eNB or eNodeB) in an LTE system, or a radio controller in a Cloud Radio Access Network (CRAN). Alternatively, the network device may be a relay station, access point, vehicle-mounted equipment, wearable device, network-side equipment in a future 5G network, or network equipment in a future evolved Public Land Mobile Network (PLMN), etc.

[0031] The wireless communication system 100 also includes at least one terminal device 120 located within the coverage area of ​​the network device 110. The terminal device 120 can be mobile or fixed. Optionally, the terminal device 120 can refer to an access terminal, user equipment (UE), user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent, or user device. The access terminal can be a cellular phone, cordless phone, Session Initiation Protocol (SIP) phone, Wireless Local Loop (WLL) station, Personal Digital Assistant (PDA), handheld device with wireless communication capabilities, computing device or other processing device connected to a wireless modem, in-vehicle device, wearable device, terminal device in a future 5G network, or terminal device in a future evolved PLMN, etc.

[0032] Optionally, the terminal devices 120 can communicate directly with each other via Device to Device (D2D).

[0033] Alternatively, 5G systems or networks may also be referred to as New Radio (NR) systems or networks.

[0034] Figure 1 An exemplary embodiment shows a network device and two terminal devices. Optionally, the wireless communication system 100 may include multiple network devices and each network device may include other numbers of terminal devices within its coverage area. This application embodiment does not limit this.

[0035] Optionally, the wireless communication system 100 may also include other network entities such as a network controller and a mobility management entity, which is not limited in this embodiment.

[0036] In LTE systems, the Media Access Control (MAC) entity is configured with DRX functionality by the Radio Resource Control (RRC) to control the behavior of terminal devices monitoring the Physical Downlink Control Channel (PDCCH). For example... Figure 2As shown, in RRC Connected mode, if the terminal device is configured with DRX functionality, the MAC entity can continuously monitor the PDCCH during the On Duration period, but not during the Opportunity for DRX period, thereby reducing the power consumption of the terminal device. Network devices can configure a set of DRX parameters for the MAC entity via RRC signaling, such as configuring a series of DRX timers, to manage the wake-up and sleep states of the terminal device. Based on the values ​​of these parameters, the following can be obtained: Figure 2 The DRX cycle is shown.

[0037] In 5G systems, the transmission parameters of terminal devices, such as the basic parameter set (numerology), can be flexibly changed, which may affect the terminal device's monitoring of the control channel.

[0038] For example Figure 3 As shown, assume that the network device configures a DRX duration timer (drx-onDurationTimer) for the terminal device, and the duration of the timer is equal to the control resource set (CORESET) of BWP 2. Figure 3 The basic parameter sets used on BWP 1 and BWP 2 are different, such as the subcarrier spacing. The subcarrier spacing used on BWP 1 can be, for example, 15kHz, while the subcarrier spacing used on BWP 2 can be, for example, 30kHz. When the terminal device switches from Bandwith Part (BWP) 2 to BWP 1, the timer will time out within the time length of the control resource set of BWP 1. As a result, the terminal device cannot detect the Physical Downlink Control Channel (PDCCH) resources on the control resource set of BWP 1.

[0039] In this embodiment of the application, when the transmission parameters change, the terminal device can dynamically adjust the DRX parameters and use the adjusted DRX parameters to monitor the PDCCH, thereby ensuring that the terminal device can effectively monitor the downlink control channel when the transmission parameters change.

[0040] It should be understood that the monitoring in the embodiments of this application may also be referred to as listening, detection, eavesdropping, or inspection.

[0041] It should also be understood that the basic parameter set in the embodiments of this application includes, but is not limited to, subcarrier spacing. For example, the basic parameter set may include at least one of the following parameters: subcarrier spacing, number of subcarriers under a specific bandwidth, number of subcarriers in a physical resource block (PRB), length of Orthogonal Frequency Division Multiplexing (OFDM) symbols, number of points for Fourier transform or inverse Fourier transform used to generate OFDM signals, number of OFDM symbols in a transmission time interval (TTI), number of TTIs contained within a specific time length, and length of the signal prefix.

[0042] Figure 4 This is a schematic flowchart of a method for discontinuous reception according to an embodiment of this application. Figure 4 The terminal device shown can be, for example, Figure 1 The terminal device 120 shown is an example. Figure 4 As shown, the method for discontinuous reception includes:

[0043] In 410, when the transmission parameters used by the terminal device for data transmission change, the terminal device adjusts the DRX parameters.

[0044] In 420, the terminal device monitors the PDCCH based on the adjusted DRX parameters.

[0045] Specifically, when the transmission parameters used by the terminal device for data transmission, such as BWP or the basic parameter set, change, the terminal device can adjust the currently used DRX parameters and continue data transmission, such as monitoring the PDCCH, based on the adjusted DRX parameters.

[0046] Therefore, when the transmission parameters change, the terminal device can dynamically adjust the DRX parameters and use the adjusted DRX parameters to monitor the PDCCH, thereby ensuring that the terminal device can effectively monitor the downlink control channel when the transmission parameters change.

[0047] The DRX parameter can be, for example, the DRX slot offset (drx-SlotOffset) and / or the DRX duration timer (drx-onDurationTimer).

[0048] Optionally, in step 410, the transmission parameters of the terminal device change, which may be a change in the BWP used by the terminal device and / or a change in the basic parameter set used by the terminal device. That is, the transmission parameters include the BWP and / or the basic parameter set.

[0049] Optionally, the multiple Base Window (BWP) that a terminal device can use for data transmission can correspond to multiple base parameter sets. The terminal device can use the base parameter set corresponding to the BWP it chooses to transmit data. Each BWP corresponds to one base parameter set, and each base parameter set can correspond to at least one BWP. Therefore, when a BWP changes, the base parameter set used by the terminal device may or may not change. However, when the base parameter set used by the terminal device changes, it indicates that the BWP used by the terminal device has changed. These two scenarios are described below.

[0050] First, let's explain the first scenario: the change in transmission parameters includes a change in the bandwidth (BWP). In this case, the terminal device can adjust the DRX parameter in the following three ways.

[0051] Method 1

[0052] The terminal device adjusts the DRX parameter to correspond to the DRX parameter in the first basic parameter set based on the mapping relationship between multiple basic parameter sets and multiple DRX parameters. This first basic parameter set is the set of basic parameters used on the modified BWP.

[0053] For example, suppose the basic parameter set includes subcarrier spacing, and the DRX parameters include DRX duration timer and DRX slot offset. Then the mapping relationship between the basic parameter set and DRX can be as shown in Table 1.

[0054] Table 1

[0055]

[0056] As shown in Table 1, if the terminal device switches from BWP 2 to BWP 1 during data transmission, assuming the subcarrier spacing used on BWP 1 is 15kHz and the subcarrier spacing used on BWP 2 is 30kHz, then the terminal device needs to switch the DRX parameters from those corresponding to the 30kHz subcarrier spacing on BWP 1 to those corresponding to the 15kHz subcarrier spacing on BWP 2. Specifically, the timing duration of the DRX duration timer needs to be adjusted from greater than or equal to 16-32ms to greater than or equal to 1ms, and the DRX slot offset needs to be adjusted from the range {0ms, 16-32ms} to 0ms. The terminal device then uses the adjusted DRX parameters to monitor the PDCCH in the CORESET of BWP 1.

[0057] Of course, if the basic parameter set used on the BWP before and after the switch is the same, then the terminal device does not need to adjust the DRX parameters.

[0058] Method 2

[0059] The terminal device adjusts the DRX parameter to the DRX parameter corresponding to the second basic parameter set based on the mapping relationship between multiple basic parameter sets and multiple DRX parameters. The second basic parameter set is the basic parameter set with the smallest subcarrier spacing.

[0060] The minimum subcarrier spacing can be, for example, 15 kHz as shown in Table 1.

[0061] The mapping relationship between the basic parameter set and the DRX parameters can be illustrated in Table 1. When the BWP used by the terminal device to transmit data changes, the DRX parameters can be directly adjusted to the DRX parameters corresponding to the minimum subcarrier spacing, i.e., the DRX parameters corresponding to 15kHz, based on this mapping relationship between different basic parameter sets (subcarrier spacing) and different DRX parameters.

[0062] Method 3

[0063] The terminal device adjusts the DRX parameter to a specific DRX parameter that is pre-configured.

[0064] This specific DRX parameter can be pre-configured by the network device for the terminal device, or it can be a DRX parameter pre-agreed upon by the network device and the terminal device, such as one specified in a protocol. When the BWP used by the terminal device to transmit data changes, the currently used DRX parameter can be directly adjusted to this specific DRX parameter.

[0065] This specific DRX can be, for example, the DRX parameter corresponding to the minimum subcarrier spacing in Method 2, or other default DRX parameters.

[0066] The second scenario is described below. In this second scenario, the change in transmission parameters includes a change in the transmission bandwidth portion (BWP) and a change in the basic parameter set. Alternatively, it can be said that the change in transmission parameters includes a change in the basic parameter set, because a change in the basic parameter set indicates that the BWP used by the terminal device has also changed.

[0067] In this case, the terminal device can also adjust the DRX parameters in three ways, which are described below.

[0068] Method 1

[0069] The terminal device adjusts the DRX parameter to correspond to the changed basic parameter set based on the mapping relationship between multiple basic parameter sets and multiple DRX parameters.

[0070] When the set of basic parameters used by a terminal device changes, the terminal device can adjust the DRX parameter based on the mapping relationship between the basic parameter set and the DRX parameter. The adjusted DRX parameter is the DRX parameter corresponding to the changed basic parameter set.

[0071] The mapping relationship between the basic parameter set and the DRX parameters can be illustrated as shown in Table 1. For example, assuming that the basic parameter set includes the subcarrier spacing, if the terminal device determines that the subcarrier spacing it uses has switched from 30kHz to 15kHz, then the terminal device will adjust the DRX parameters to the DRX parameters corresponding to 15kHz. That is, it will adjust the timing duration of the DRX duration timer to be greater than or equal to 1ms and adjust the DRX slot offset to 0ms, and monitor the PDCCH based on the adjusted DRX parameters.

[0072] Method 2

[0073] The terminal device adjusts the DRX parameter to the DRX parameter corresponding to the second basic parameter set based on the mapping relationship between multiple basic parameter sets and multiple DRX parameters. The second basic parameter set is the basic parameter set with the smallest subcarrier spacing.

[0074] The minimum subcarrier spacing can be, for example, 15 kHz as shown in Table 1.

[0075] The mapping relationship between the basic parameter set and the DRX parameters can be illustrated in Table 1. When the BWP used by the terminal device to transmit data changes, the DRX parameters can be directly adjusted to the DRX parameters corresponding to the minimum subcarrier spacing, i.e., the DRX parameters corresponding to 15kHz, based on the mapping relationship between different basic parameter sets (subcarrier spacing) and different DRX parameters.

[0076] Method 3

[0077] The terminal device adjusts the DRX parameter to a specific DRX parameter that is pre-configured.

[0078] The minimum subcarrier spacing can be, for example, 15 kHz.

[0079] This specific DRX parameter can be pre-configured by the network device for the terminal device, or it can be a DRX parameter pre-agreed upon by the network device and the terminal device, such as one specified in a protocol. When the basic parameter set used by the terminal device for data transmission, such as the subcarrier spacing, changes, the currently used DRX parameter can be directly adjusted to this specific DRX parameter.

[0080] This specific DRX parameter can be, for example, the DRX parameter corresponding to the minimum subcarrier spacing in Method 2, or other default DRX parameters.

[0081] Optionally, before step 410, i.e. before the terminal device adjusts the DRX parameters, the terminal device needs to obtain the mapping relationship between multiple basic parameter sets and multiple DRX parameters. Specifically, the terminal device can receive configuration information sent by the network device to indicate the mapping relationship, thereby obtaining the mapping relationship based on the network device's configuration information; or, the mapping relationship can be pre-agreed and pre-stored in the terminal device.

[0082] The method for discontinuous reception according to embodiments of this application has been described in detail above. The following will combine... Figures 5 to 7 The technical features described in the apparatus and method embodiments according to the present application are applicable to the following apparatus embodiments.

[0083] Figure 5 This is a schematic block diagram of a terminal device 500 according to an embodiment of this application. Figure 5 As shown, the terminal device 500 includes an adjustment unit 510 and a communication unit 520. Wherein:

[0084] The adjustment unit 510 is used to adjust the DRX parameter when the transmission parameters used for data transmission change.

[0085] The communication unit 520 is used to monitor the PDCCH based on the DRX parameters adjusted by the adjustment unit 510.

[0086] Therefore, when the transmission parameters change, the terminal device can dynamically adjust the DRX parameters and use the adjusted DRX parameters to monitor the PDCCH, thereby ensuring that the terminal device can effectively monitor the downlink control channel when the transmission parameters change.

[0087] Optionally, the change in transmission parameters includes a change in the transmission bandwidth portion (BWP).

[0088] Optionally, the adjustment unit 510 is specifically used to: adjust the DRX parameter to the DRX parameter corresponding to the first basic parameter set according to the mapping relationship between multiple basic parameter sets and multiple DRX parameters, wherein the first basic parameter set is the basic parameter set used on the changed BWP.

[0089] Optionally, the adjustment unit 510 is specifically used to: adjust the DRX parameters to DRX parameters corresponding to a second basic parameter set according to the mapping relationship between multiple basic parameter sets and multiple DRX parameters, wherein the second basic parameter set is the basic parameter set with the smallest subcarrier spacing.

[0090] Optionally, the adjustment unit 510 is specifically used to: adjust the DRX parameter to a specific DRX parameter, which is pre-configured by the network device.

[0091] Optionally, the change in transmission parameters includes a change in the transmission bandwidth portion (BWP) and a change in the basic parameter set.

[0092] Optionally, the adjustment unit 510 is specifically used to: adjust the DRX parameters to the DRX parameters corresponding to the changed basic parameter sets according to the mapping relationship between multiple basic parameter sets and multiple DRX parameters.

[0093] Optionally, the adjustment unit 510 is specifically used to: adjust the DRX parameters to DRX parameters corresponding to a second basic parameter set according to the mapping relationship between multiple basic parameter sets and multiple DRX parameters, wherein the second basic parameter set is the basic parameter set with the smallest subcarrier spacing.

[0094] Optionally, the adjustment unit 510 is specifically used to: adjust the DRX parameter to a specific DRX parameter, which is pre-configured by the network device.

[0095] Optionally, the minimum subcarrier spacing is 15 kHz.

[0096] Optionally, the adjustment unit 510 is further configured to: receive configuration information sent by the network device through the communication unit 520, the configuration information being used to indicate the mapping relationship; or, obtain the mapping relationship pre-existing on the terminal device.

[0097] Optionally, the DRX parameters include a DRX duration timer and / or a DRX slot offset.

[0098] It should be understood that the terminal device 500 can perform the corresponding operations performed by the terminal device in the above method 400, which will not be elaborated here for the sake of brevity.

[0099] Figure 6 This is a schematic structural diagram of a terminal device 600 according to an embodiment of this application. Figure 6 As shown, the terminal device includes a processor 610, a transceiver 620, and a memory 630, wherein the processor 610, transceiver 620, and memory 630 communicate with each other through an internal connection path. The memory 630 is used to store instructions, and the processor 610 is used to execute the instructions stored in the memory 630 to control the transceiver 620 to receive or transmit signals.

[0100] Optionally, the processor 610 can call the program code stored in the memory 630 to execute the corresponding operation performed by the terminal device in method 400. For the sake of brevity, this will not be described in detail here.

[0101] It should be understood that the processor in the embodiments of this application may be an integrated circuit chip with signal processing capabilities. In implementation, the steps of the above method embodiments can be completed by integrated logic circuits in the processor's hardware or by instructions in software form. The processor described above 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. The 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.

[0102] 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 DRAM (SDRAM), Double Data Rate Synchronous DRAM (DDR SDRAM), Enhanced Synchronous DRAM (ESDRAM), Synchlink DRAM (SLDRAM), and Direct Rambus RAM (DR RAM). It should be noted that the memory of the systems and methods described in this application is intended to include, but is not limited to, these and any other suitable types of memory.

[0103] Figure 7 This is a schematic structural diagram of a system chip according to an embodiment of this application. Figure 7 The system chip 700 includes an input interface 701, an output interface 702, at least one processor 703, and a memory 704. The input interface 701, the output interface 702, the processor 703, and the memory 704 are interconnected via internal connection paths. The processor 703 is used to execute code in the memory 704.

[0104] Optionally, when the code is executed, the processor 703 can implement the corresponding operations performed by the terminal device in method 400. For the sake of brevity, further details are omitted here.

[0105] 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.

[0106] Those skilled in the art will 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.

[0107] 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.

[0108] 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.

[0109] 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.

[0110] 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.

[0111] 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 method for discontinuous DRX reception, characterized in that, The method includes: When the transmission parameters used by the terminal device for data transmission change, the terminal device adjusts the DRX parameters; The terminal device monitors the PDCCH based on the adjusted DRX parameters; The changes in transmission parameters include changes in the transmission bandwidth (BWP); the adjustments to the DRX parameters by the terminal device include: The terminal device adjusts the DRX parameters to correspond to the DRX parameters of the second basic parameter set according to the mapping relationship between multiple basic parameter sets and multiple DRX parameters. The second basic parameter set is the basic parameter set with the smallest subcarrier spacing. The DRX parameters include a DRX duration timer and / or a DRX slot offset.

2. The method according to claim 1, characterized in that, The change in transmission parameters also includes a change in the basic parameter set.

3. The method according to claim 2, characterized in that, The terminal device adjusts the DRX parameters, including: The terminal device adjusts the DRX parameters to correspond to the changed basic parameter sets based on the mapping relationship between multiple basic parameter sets and multiple DRX parameters.

4. The method according to claim 2, characterized in that, The terminal device adjusts the DRX parameters, including: The terminal device adjusts the DRX parameters to specific DRX parameters, which are pre-configured by the network device.

5. The method according to claim 1, characterized in that, The minimum subcarrier spacing is 15 kHz.

6. The method according to claim 1, characterized in that, Before the terminal device adjusts the DRX parameters, the method further includes: The terminal device receives configuration information sent by the network device, the configuration information being used to indicate the mapping relationship; or, The terminal device obtains the mapping relationship that is pre-existing on the terminal device.

7. A terminal device, characterized in that, The terminal device includes: The adjustment unit is used to adjust the discontinuous reception DRX parameters when the transmission parameters used for data transmission change. A communication unit is used to monitor the PDCCH based on the DRX parameters adjusted by the adjustment unit. The change in transmission parameters includes a change in the transmission bandwidth portion (BWP). The adjustment unit is specifically used for: Based on the mapping relationship between multiple basic parameter sets and multiple DRX parameters, the DRX parameters are adjusted to correspond to the DRX parameters of the second basic parameter set, which is the basic parameter set with the smallest subcarrier spacing; the DRX parameters include DRX duration timer and / or DRX slot offset.

8. The terminal device according to claim 7, characterized in that, The change in transmission parameters also includes a change in the basic parameter set.

9. The terminal device according to claim 8, characterized in that, The adjustment unit is specifically used for: Based on the mapping relationship between multiple basic parameter sets and multiple DRX parameters, the DRX parameters are adjusted to correspond to the DRX parameters of the changed basic parameter sets.

10. The terminal device according to claim 8, characterized in that, The adjustment unit is specifically used for: The DRX parameters are adjusted to specific DRX parameters, which are pre-configured by the network device.

11. The terminal device according to claim 7, characterized in that, The minimum subcarrier spacing is 15 kHz.

12. The terminal device according to claim 7, characterized in that, The adjustment unit is also used for: The communication unit receives configuration information sent by the network device, the configuration information being used to indicate the mapping relationship; or, Obtain the mapping relationship that exists in the terminal device.

13. A terminal device, characterized in that, include: The processor, transceiver, and memory; wherein the memory is used to store instructions. The processor is used to execute instructions stored in the memory; When the processor executes the instructions stored in the memory, the terminal device performs the method according to any one of claims 1-6.

14. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer-executable instructions, which, when executed by a processor, implement the method according to any one of claims 1-6.

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