CN111836408A - Mode switching method, terminal and network equipment - Google Patents
Mode switching method, terminal and network equipment Download PDFInfo
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- CN111836408A CN111836408A CN201910804649.1A CN201910804649A CN111836408A CN 111836408 A CN111836408 A CN 111836408A CN 201910804649 A CN201910804649 A CN 201910804649A CN 111836408 A CN111836408 A CN 111836408A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/20—Manipulation of established connections
- H04W76/28—Discontinuous transmission [DTX]; Discontinuous reception [DRX]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The embodiment of the invention provides a mode switching method, a terminal and network equipment, wherein the method comprises the following steps: entering a first mode under the condition of starting or restarting a first timer, wherein the first timer is a drx-InactivityTimer; starting or restarting a second timer, and switching from the first mode to a second mode if the second timer times out. The embodiment of the invention can improve the transmission flexibility of the terminal and can also improve the energy-saving effect of the terminal.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a mode switching method, a terminal, and a network device.
Background
In a Connected Discontinuous Reception (CDRX) process, when a Physical Downlink Control Channel (PDCCH) indicating a new transmission (or called an initial transmission) is received when a terminal activates a time (active time), a DRX inactivity timer (DRX) may be started, and after the DRX inactivity timer is started, the terminal may be maintained in the same mode, for example, the terminal may be maintained in a mode configured with a simultaneous slot scheduling (same slot scheduling) or a relatively large Downlink or uplink multiple input multiple output (DL/UL MIMO layer), thereby resulting in relatively poor flexibility of terminal transmission.
Disclosure of Invention
The embodiment of the invention provides a mode switching method, a terminal and network equipment, and aims to solve the problem that the flexibility of terminal transmission is poor.
In a first aspect, an embodiment of the present invention provides a mode switching method, applied to a terminal, including:
entering a first mode under the condition of starting or restarting a first timer, wherein the first timer is a discontinuous reception non-activated timer (drx-inactivytimer);
starting or restarting a second timer, and switching from the first mode to a second mode if the second timer times out.
In a second aspect, an embodiment of the present invention provides a mode switching method, applied to a network device, including:
under the condition that a terminal starts or restarts a first timer, scheduling transmission is carried out aiming at the terminal entering a first mode, wherein the first timer is a discontinuous reception non-activated timer (drx-inactivytytimer);
switching scheduled transmissions for the terminal from the first mode to a second mode if a second timer started or restarted by the terminal times out.
In a third aspect, an embodiment of the present invention provides a terminal, including:
the device comprises an entering module, a starting module and a control module, wherein the entering module is used for entering a first mode under the condition of starting or restarting a first timer, and the first timer is drx-InactivityTimer;
and the switching module is used for starting or restarting a second timer, and switching from the first mode to the second mode under the condition that the second timer is overtime.
In a fourth aspect, an embodiment of the present invention provides a network device, including:
an entry module, configured to perform scheduling transmission for a terminal entering a first mode when the terminal starts or restarts a first timer, where the first timer is a drx-inactivytytimer;
a switching module, configured to switch a scheduled transmission for the terminal from the first mode to a second mode when a second timer started or restarted by the terminal is expired.
In a fifth aspect, an embodiment of the present invention provides a terminal, including: the terminal side switching method comprises a memory, a processor and a program which is stored on the memory and can run on the processor, wherein the program realizes the steps in the terminal side switching method provided by the embodiment of the invention when being executed by the processor.
In a sixth aspect, an embodiment of the present invention provides a network device, where the network device includes: the invention further provides a network device side mode switching method, which comprises a memory, a processor and a program stored on the memory and capable of running on the processor, wherein the program realizes the steps in the network device side mode switching method provided by the embodiment of the invention when being executed by the processor.
In a seventh aspect, an embodiment of the present invention provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and the computer program, when executed by a processor, implements the steps in the mode switching method on the terminal side provided in the embodiment of the present invention, or the computer program, when executed by the processor, implements the steps in the mode switching method on the network device side provided in the embodiment of the present invention.
In the embodiment of the invention, a first mode is entered under the condition of starting or restarting a first timer, wherein the first timer is drx-InactivityTimer; starting or restarting a second timer, and switching from the first mode to a second mode if the second timer times out. This can improve the transmission flexibility of the terminal.
Drawings
Fig. 1 is a block diagram of a network system to which an embodiment of the present invention is applicable;
fig. 2 is a flowchart of a mode switching method according to an embodiment of the present invention;
fig. 3 is a flowchart of another mode switching method according to an embodiment of the present invention;
fig. 4 is a structural diagram of a terminal according to an embodiment of the present invention;
fig. 5 is a block diagram of a network device according to an embodiment of the present invention;
fig. 6 is a block diagram of another terminal provided in an embodiment of the present invention;
fig. 7 is a block diagram of another network device according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The terms "comprises," "comprising," or any other variation thereof, in the description and claims of this application, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus. Furthermore, the use of "and/or" in the specification and claims means that at least one of the connected objects, such as a and/or B, means that three cases, a alone, B alone, and both a and B, exist.
In the embodiments of the present invention, words such as "exemplary" or "for example" are used to mean serving as examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "e.g.," an embodiment of the present invention is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "such as" is intended to present concepts related in a concrete fashion.
Embodiments of the present invention are described below with reference to the accompanying drawings. The mode switching method, the terminal and the network equipment provided by the embodiment of the invention can be applied to a wireless communication system. The wireless communication system may be a New Radio (NR) system, an Evolved Long Term Evolution (LTE) system, a Long Term Evolution (LTE) system, or a subsequent Evolution communication system.
Referring to fig. 1, fig. 1 is a structural diagram of a network system to which an embodiment of the present invention is applicable, and as shown in fig. 1, the network system includes a terminal 11 and a network device 12, where the terminal 11 may be a User Equipment (UE) or other terminal-side devices, for example: it should be noted that, in the embodiment of the present invention, a specific type of the terminal 11 is not limited. The network device 12 may be a 4G base station, or a 5G base station, or a later-version base station, or a base station in another communication system, or referred to as a node B, an evolved node B, or a Transmission Reception Point (TRP), or an Access Point (AP), or another vocabulary in the field, and the network device is not limited to a specific technical vocabulary as long as the same technical effect is achieved. In addition, the network device 12 may be a Master Node (MN) or a Secondary Node (SN). It should be noted that, in the embodiment of the present invention, only the 5G base station is taken as an example, but the specific type of the network device is not limited.
Referring to fig. 2, fig. 2 is a flowchart of a mode switching method according to an embodiment of the present invention, where the method is applied to a terminal, and as shown in fig. 2, the method includes the following steps:
The starting or restarting of the first timer may be started or restarted when the terminal receives a PDCCH indicating a new transmission (or referred to as an initial transmission) during an activation time (active time). It should be noted that, in the embodiment of the present invention, a condition for starting or restarting the first timer is not limited, for example: it may be a condition for starting or restarting drx-inactivytytytimer newly defined by a subsequent protocol version.
The first mode may be referred to as a first operation mode, in which the terminal monitors the PDCCH. For example: the first mode may be a mode configured with simultaneous slot scheduling (same slot scheduling), or the first mode may be a mode configured with a relatively large downlink or uplink multiple input multiple output layer (DL/UL MIMO layer), for example: a mode that the downlink MIMO layer is 4 layers is configured, or a mode that the uplink MIMO layer is 2 layers is configured, and the like.
The second timer may be configured on the network side, for example: the network side is configured through RRC signaling, or the second timer may be a timer agreed in advance by a protocol. In addition, the second timer may be N slots (slots), N minislots (mini-slots), N milliseconds, or N time domain symbols, where N is a positive integer. N is network predefined or network device configured.
In addition, the second timer can be started or restarted after the first timer is started or restarted but not overtime, so that the first mode can be switched to the second mode after the first timer is started or restarted and before the first timer is overtime, and the transmission flexibility before the drx-inactivity timer is overtime is improved.
The length of the second timer may be smaller than that of the first timer, so that the first timer may be switched from the first mode to the second mode before the first timer expires, or the terminal may be switched between the first mode and the second mode many times before the first timer expires, so that the terminal may flexibly receive the PDCCH, and the terminal is favorable for saving energy.
Further, the first mode and the second mode may be two modes with different energy saving effects, for example: the power saving effect of the first mode is lower than that of the second mode, so that switching from the first mode to the second mode may be to increase the power saving effect of the terminal. Another example is: the power saving effect of the first mode is higher than that of the second mode, so that the power saving effect of the terminal can be improved as compared to the case where the terminal is maintained in the second mode all the time.
Alternatively, the first mode and the second mode may be two modes with different parameters, for example: the first mode may be a mode in which simultaneous slot scheduling (same slot scheduling) is configured, for example, minimum K0 is 0, and the second mode may be a mode in which cross slot scheduling (cross slot scheduling) is configured, for example, minimum K0 is 1. Of course, the second mode may be a mode configured with simultaneous slot scheduling (same slot scheduling), and the first mode may be a mode configured with cross slot scheduling (cross slot scheduling); another example is: the first mode may be a mode in which a relatively large maximum downlink or maximum uplink multiple input multiple output layer (DL/UL MIMO layer) is configured (e.g., the maximum downlink MIMO layer is 4 layers, or the maximum uplink MIMO layer is 2 layers), and the first mode may be a mode in which a relatively small maximum downlink or maximum uplink multiple input multiple output layer (DL/UL MIMO layer) is configured (e.g., the maximum downlink MIMO layer is 2 layers, or the maximum uplink MIMO layer is 1 layer).
In the embodiment of the invention, the terminal is switched from the first mode to the second mode when the second timer is overtime, so that the transmission flexibility of the terminal can be improved, and the energy-saving effect of the terminal can be further improved, for example, the terminal is switched from a mode with poor energy-saving effect to a mode with good energy-saving effect, or the terminal is switched into a mode with good energy-saving effect first and then is switched into a mode with poor energy-saving effect.
It should be noted that, it is clear for the network device that the terminal starts or restarts the first timer, because the condition that the terminal starts or restarts the first timer may be configured by the network device, or agreed in a protocol, or negotiated between the terminal and the network device in advance, etc. Therefore, under the condition that the terminal starts or restarts the first timer, the network equipment enters the first mode for scheduling transmission aiming at the terminal.
Similarly, it is clear to the network device that the terminal starts or restarts the second timer, because the condition for the terminal to start or restart the second timer may be configured by the network device, or agreed in the protocol, or pre-negotiated between the terminal and the network device, etc. Whereby the network device switches the scheduled transmission for the terminal from the first mode to a second mode in case the second timer started or restarted by the terminal times out.
As an optional implementation manner, the starting or restarting the second timer includes:
starting or restarting the second timer in case of receiving the PDCCH.
In the case of receiving the PDCCH, the second timer may be started or restarted before the second timer is started, or after the second timer is started and the PDCCH is received when the second timer is overtime or not overtime.
The PDCCH may be a PDCCH scrambled by a Cell-Radio Network Temporary Identifier (C-RNTI) or a Scheduling configuration Radio Network Temporary Identifier (CS-RNTI). For example: a downlink assignment or an uplink grant (downlink assignment or uplink grant) scheduling PDCCH.
Alternatively, the PDCCH is a PDCCH for scheduling a new transmission (or referred to as an initial transmission). The new transmission may refer to the first transmission or initial transmission of the service packet, rather than the retransmission.
Therefore, the second timer is started or restarted under the condition that the PDCCH transmits the scheduling terminal, and the PDCCH is switched to the second mode under the condition that the second timer is out of date so as to save the energy consumption of the terminal. For example: before the drx-inactivity timer expires, if the terminal does not receive the scheduled PDCCH within a certain time (within the valid time of the second timer), the terminal may enter a mode configured with cross slot scheduling (cross slot scheduling) or a relatively small maximum DL/UL MIMO layer, which may save power.
Optionally, the starting the second timer in case of receiving the PDCCH includes:
the second timer is started on condition that the PDCCH is received in the first mode, and the terminal remains in the first mode until the second timer expires.
In the above, when the PDCCH is received in the first mode, the second timer may be started, after the first timer is started or restarted, the second timer is started if the PDCCH is received after the first mode is entered and before the first timer is not timed out.
Optionally, the restarting the second timer when the PDCCH is received includes:
under the second mode and the condition that the first timer is not overtime, if the PDCCH is received, restarting the second timer and switching from the second mode to the first mode; or
And if the PDCCH is received under the condition that the second timer is not overtime, restarting the second timer.
The second mode may be a case where the second timer is overtime, and the second mode is switched to the second mode when the second timer is overtime.
In this embodiment, in the second mode, when the first timer has not timed out, the procedure of restarting the second timer is executed upon receiving the PDCCH, and the mode may be switched back to the first mode from the second mode.
Under the condition that the second timer is overtime and the first timer is not overtime, if the PDCCH is received, the second timer is restarted and the mode is switched back to the first mode, so that the terminal can more easily monitor the subsequent PDCCH. Of course, if the second timer times out after the second timer is restarted, the mode is switched back to the second mode.
In the aforementioned case that the second timer is not expired, if the PDCCH is received, the second timer may be restarted, after the second timer is started, in the first mode, if the PDCCH is received, the second timer may be restarted, and before the second timer is expired, the terminal may be maintained in the first mode.
As an optional implementation, the method further comprises:
entering the second mode if the first timer times out, wherein the entering the second mode comprises:
switching from the first mode to the second mode, or maintaining the second mode.
The terminal may be in the second mode, and the first timer is timed out, so as to be maintained in the second mode, or may be in the first mode, and the first timer is timed out, so as to switch the first mode to the second mode. For example: and if the second timer is overtime and the first timer is not overtime, restarting the second timer to switch from the second mode to the first mode if the PDCCH is received, wherein in the case, the first timer is overtime when the terminal is possibly in the first mode.
In this embodiment, since the second mode is entered when the first timer is overtime, the energy consumption of the terminal can be saved.
Optionally, after the first timer expires, if the PDCCH is received in a short discontinuous reception period (drx-short cycle), the first mode is entered, and the second timer is started or restarted.
The starting or restarting of the second timer may be starting or restarting the second timer when the PDCCH is received, which may specifically refer to the corresponding description of the foregoing embodiment, and is not described herein again.
Before entering the drx-short Cycle, the terminal may be in a long discontinuous reception Cycle (longDRX-Cycle) or may be in another drx-short Cycle, which is not limited herein.
In the embodiment, as the PDCCH is received at the drx-ShortCycle, the first mode is entered, and the second timer is started or restarted, so that the mode switching can be performed under the drx-ShortCycle, which is beneficial to improving the energy-saving effect of the terminal.
Optionally, the terminal obtains a parameter configuration of short discontinuous reception (short DRX) with a network configuration, and performs a related operation according to the parameter configuration of short DRX after the first timer expires.
The parameter configuration may include drx-ShortCycle, for example: active time and sleep time.
The related operation according to the short DRX parameter configuration may be to monitor the PDCCH during the active time of DRX-short cycle, and not monitor the PDCCH during the sleep time.
In addition, when the related operation is performed according to the parameter configuration of the short DRX, if the PDCCH is received at DRX-short cycle, the first mode may be entered, and the second timer may be started or restarted.
After the first timer expires, the mode is not limited to enter the second mode, for example: it may also be to enter a sleep mode.
As an optional implementation manner, the parameter of the first mode includes at least one of the following parameters:
minimum K0(minimum K0), minimum K1(minimum K1), minimum K2(minimum K2), maximum downlink multiple input multiple output MIMO layers (DL maximum MIMO layers), and maximum uplink MIMO layers (UL maximum MIMO layers);
the parameters of the second mode include at least one of:
minimum K0, minimum K1, minimum K2, maximum downlink MIMO layer number and maximum uplink MIMO layer number;
and at least one parameter in the parameters of the first mode and the parameters of the second mode has different values.
In the embodiment of the present invention, K0 may represent a time interval between a PDCCH and a Physical Downlink Shared Channel (PDSCH) scheduled by the PDCCH;
in the embodiment of the present invention, K2 may represent a time interval between a PDCCH and a Physical Uplink Shared Channel (PUSCH) scheduled by the PDCCH;
in this embodiment of the present invention, K1 may be a time interval between an ACK message and a NACK message on a PDSCH and a corresponding Physical Uplink Control Channel (PUCCH).
Taking the first mode as an example, the minimum K0 may be the minimum K0 in the first mode, for example: the minimum K0 of the simultaneous slot scheduling (same slot scheduling) is 0, and the minimum K0 of the cross slot scheduling (cross slot scheduling) is >0, such as K0 is 1 slot (slot). Due to the fact that the minimum K0 is included, the terminal can operate correspondingly according to the minimum K0, and energy consumption of the terminal is saved, for example: when the minimum K0 is 1 time slot, then, after receiving the PDCCH, the terminal does not need to receive the PDSCH in the time slot where the PDCCH is located, so that the PDSCH which may be sent to the terminal in the time slot does not need to be buffered, and further energy consumption is saved. Similarly, the energy consumption of the terminal can be saved by setting the minimum K1 and the minimum K2.
Taking the first mode as an example, the maximum number of downlink MIMO layers may be the maximum number of downlink MIMO layers in the first mode, for example: 4 layers or 2 layers. Because the maximum downlink MIMO layer number is included, the terminal performs corresponding operations according to the maximum downlink MIMO layer number to save energy consumption of the terminal, for example: when the maximum downlink MIMO layer number is 2, the terminal only needs to turn on 2 receiving antennas (or antenna groups or antenna units or receiving channels), so that all receiving antennas do not need to be turned on, and energy consumption is reduced. Similarly, the energy consumption of the terminal can be saved through the maximum uplink MIMO layer number.
In addition, the value of at least one of the parameters of the first mode and the parameters of the second mode may be different, for example, the value of at least one of the parameters of the first mode is different from the value of at least one of the parameters of the second mode, and the value of the at least one of the parameters of the first mode is different from the value of the at least one of the parameters of the second mode, for example: the first mode and the second mode both include at least two of the minimum K0, the minimum K1, the minimum K2, the maximum downlink MIMO layer number, and the maximum uplink MIMO layer number, and the parameter of the first mode and the parameter of the second mode may be different values of one of the parameters, such as different values of the minimum K0, or different values of the maximum downlink MIMO layer number.
It should be noted that, in the embodiment of the present invention, the parameter items included in the first mode and the second mode may be the same or different, for example: the parameters of the first mode include a minimum K0, a minimum K1, a minimum K2, a maximum number of downlink MIMO layers, and a maximum number of uplink MIMO layers, and the parameters of the second mode include all or part of a minimum K0, a minimum K1, a minimum K2, a maximum number of downlink MIMO layers, and a maximum number of uplink MIMO layers. For example: in the case that the parameters of the first mode and the parameters of the second mode both include the minimum K0, the values of the minimum K0 of the first mode and the minimum K0 of the second mode may be different, for example, the value of the minimum K0 of the first mode is smaller than the value of the minimum K0 of the second mode; or in the case that the parameters of the first mode and the parameters of the second mode both include the minimum K1, the values of the minimum K1 of the first mode and the minimum K1 of the second mode may be different, for example, the value of the minimum K1 of the first mode is smaller than the value of the minimum K1 of the second mode; or in the case that the parameters of the first mode and the parameters of the second mode both include the minimum K2, the values of the minimum K2 of the first mode and the minimum K2 of the second mode may be different, for example, the value of the minimum K2 of the first mode is smaller than the value of the minimum K2 of the second mode; or under the condition that the parameters of the first mode and the parameters of the second mode both include the maximum downlink MIMO layer number, the values of the maximum downlink MIMO layer number of the first mode and the maximum downlink MIMO layer number of the second mode may be different, for example, the value of the maximum downlink MIMO layer number of the first mode is greater than the value of the maximum downlink MIMO layer number of the second mode; or under the condition that the parameters of the first mode and the parameters of the second mode both include the maximum uplink MIMO layer number, the maximum uplink MIMO layer number of the first mode and the maximum uplink MIMO layer number of the second mode may have different values, for example, the value of the maximum uplink MIMO layer number of the first mode is greater than the value of the maximum uplink MIMO layer number of the second mode.
In the embodiment of the invention, a first mode is entered under the condition of starting or restarting a first timer, wherein the first timer is drx-InactivityTimer; starting or restarting a second timer, and switching from the first mode to a second mode if the second timer times out. Thus, the transmission flexibility of the terminal can be improved, and the energy-saving effect of the terminal can also be improved.
Referring to fig. 3, fig. 3 is a flowchart of another mode switching method according to an embodiment of the present invention, where the method is applied to a network device, and as shown in fig. 3, the method includes the following steps:
Optionally, the second timer is: and the network equipment starts or restarts the timer under the condition of sending the PDCCH to the terminal.
Optionally, the second timer is: the network device starts a timer when the network device sends the PDCCH to the terminal in the first mode, and the network device maintains scheduled transmission in the first mode for the terminal before the second timer is overtime.
Optionally, the second timer is: and if the second timer is overtime and the first timer is not overtime, if the network equipment sends the PDCCH to the terminal, the timer is restarted, and the network equipment is switched from the second mode to the first mode aiming at the scheduling transmission of the terminal.
Optionally, the PDCCH is a PDCCH scrambled by a C-RNTI or a CS-RNTI; or
The PDCCH is a PDCCH for scheduling new transmission.
Optionally, when the first timer is overtime, the terminal enters the second mode for scheduled transmission, where the entering the second mode includes:
switching from the first mode to the second mode, or maintaining the second mode.
Optionally, after the first timer expires, if the network device sends the PDCCH to the terminal in drx-ShortCycle, the terminal enters a first mode for scheduling transmission.
Optionally, the network device configures a short DRX parameter configuration to the terminal, and performs a related operation according to the short DRX parameter configuration after the first timer expires.
Optionally, the parameters of the first mode include at least one of the following parameters:
minimum K0, minimum K1, minimum K2, maximum downlink MIMO layer number and maximum uplink MIMO layer number;
the parameters of the second mode include at least one of:
minimum K0, minimum K1, minimum K2, maximum downlink MIMO layer number and maximum uplink MIMO layer number;
and at least one parameter in the parameters of the first mode and the parameters of the second mode has different values.
Optionally, the length of the second timer is smaller than the length of the first timer.
It should be noted that, this embodiment is used as an implementation manner of a network device side corresponding to the embodiment shown in fig. 2, and a specific implementation manner of this embodiment may refer to a relevant description of the embodiment shown in fig. 2, so as to avoid repeated description, and this embodiment is not described again. In this embodiment, the transmission flexibility of the terminal may also be improved, and the energy saving effect of the terminal may also be improved.
Referring to fig. 4, fig. 4 is a structural diagram of a terminal according to an embodiment of the present invention, and as shown in fig. 4, the terminal 400 includes:
an entry module 401, configured to enter a first mode when a first timer is started or restarted, where the first timer is drx-inactivity timer;
a switching module 402, configured to start or restart a second timer, and switch from the first mode to a second mode when the second timer is expired.
Optionally, the starting or restarting the second timer includes:
starting or restarting the second timer in case of receiving the PDCCH.
Optionally, the starting the second timer when the PDCCH is received includes:
the second timer is started on condition that the PDCCH is received in the first mode, and the terminal remains in the first mode until the second timer expires.
Optionally, the restarting the second timer when the PDCCH is received includes:
under the second mode and the condition that the first timer is not overtime, if the PDCCH is received, restarting the second timer and switching from the second mode to the first mode; or
And under the condition that the second timer is not overtime, if the PDCCH is received, restarting the second timer.
Optionally, the PDCCH is a PDCCH scrambled by a C-RNTI or a CS-RNTI; or
The PDCCH is a PDCCH for scheduling new transmission.
Optionally, the entering module 401 is further configured to enter the second mode when the first timer expires, where the entering the second mode includes:
switching from the first mode to the second mode, or maintaining the second mode.
Optionally, after the first timer expires, if the PDCCH is received at drx-ShortCycle, the first mode is entered, and the second timer is started or restarted.
Optionally, the terminal obtains a parameter configuration of a short DRX with a network configuration, and performs a related operation according to the parameter configuration of the short DRX after the first timer expires.
Optionally, the parameters of the first mode include at least one of the following parameters:
minimum K0, minimum K1, minimum K2, maximum downlink MIMO layer number and maximum uplink MIMO layer number;
the parameters of the second mode include at least one of:
minimum K0, minimum K1, minimum K2, maximum downlink MIMO layer number and maximum uplink MIMO layer number;
and at least one parameter in the parameters of the first mode and the parameters of the second mode has different values.
Optionally, the length of the second timer is smaller than the length of the first timer.
The terminal provided by the embodiment of the present invention can implement each process implemented by the terminal in the method embodiment of fig. 2, and for avoiding repetition, details are not repeated here, and the terminal may improve transmission flexibility and may also improve the energy saving effect of the terminal.
Referring to fig. 5, fig. 5 is a structural diagram of a network device according to an embodiment of the present invention, and as shown in fig. 5, the network device 500 includes:
an entry module 501, configured to perform scheduling transmission in a first mode for a terminal when the terminal starts or restarts a first timer, where the first timer is a drx-inactivytytimer;
a switching module 502, configured to switch a scheduled transmission for the terminal from the first mode to a second mode if a second timer started or restarted by the terminal expires.
Optionally, the second timer is: and the network equipment starts or restarts the timer under the condition of sending the PDCCH to the terminal.
Optionally, the second timer is: the network device starts a timer when the network device sends the PDCCH to the terminal in the first mode, and the network device maintains scheduled transmission in the first mode for the terminal before the second timer is overtime.
Optionally, the second timer is: and if the second timer is overtime and the first timer is not overtime, if the network equipment sends the PDCCH to the terminal, the timer is restarted, and the network equipment is switched from the second mode to the first mode aiming at the scheduling transmission of the terminal.
Optionally, the PDCCH is a PDCCH scrambled by a C-RNTI or a CS-RNTI; or
The PDCCH is a PDCCH for scheduling new transmission.
Optionally, when the first timer is overtime, the terminal enters the second mode for scheduled transmission, where the entering the second mode includes:
switching from the first mode to the second mode, or maintaining the second mode.
Optionally, after the first timer expires, if the network device sends the PDCCH to the terminal in drx-ShortCycle, the terminal enters a first mode for scheduling transmission.
Optionally, the network device configures a short DRX parameter configuration to the terminal, and performs a related operation according to the short DRX parameter configuration after the first timer expires.
Optionally, the parameters of the first mode include at least one of the following parameters:
minimum K0, minimum K1, minimum K2, maximum downlink MIMO layer number and maximum uplink MIMO layer number;
the parameters of the second mode include at least one of:
minimum K0, minimum K1, minimum K2, maximum downlink MIMO layer number and maximum uplink MIMO layer number;
and at least one parameter in the parameters of the first mode and the parameters of the second mode has different values.
Optionally, the length of the second timer is smaller than the length of the first timer.
The network device provided by the embodiment of the present invention can implement each process implemented by the terminal in the method embodiment of fig. 3, and for avoiding repetition, details are not repeated here, and the network device can improve the transmission flexibility of the terminal and can also improve the energy saving effect of the terminal.
Figure 6 is a schematic diagram of the hardware architecture of a terminal implementing various embodiments of the present invention,
the terminal 600 includes but is not limited to: a radio frequency unit 601, a network module 602, an audio output unit 603, an input unit 604, a sensor 605, a display unit 606, a user input unit 607, an interface unit 608, a memory 609, a processor 610, and a power supply 611. Those skilled in the art will appreciate that the terminal configuration shown in fig. 6 is not intended to be limiting, and that the terminal may include more or fewer components than shown, or some components may be combined, or a different arrangement of components. In the embodiment of the present invention, the terminal includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted terminal, a robot, a wearable device, a pedometer, and the like.
The processor 610 is configured to enter a first mode when a first timer is started or restarted, where the first timer is drx-inactivity timer;
the processor 610 is further configured to start or restart a second timer, and switch from the first mode to a second mode if the second timer expires.
Optionally, the starting or restarting the second timer includes:
starting or restarting the second timer in case of receiving the PDCCH.
Optionally, the starting the second timer when the PDCCH is received includes:
the second timer is started on condition that the PDCCH is received in the first mode, and the terminal remains in the first mode until the second timer expires.
Optionally, the restarting the second timer when the PDCCH is received includes:
under the second mode and the condition that the first timer is not overtime, if the PDCCH is received, restarting the second timer and switching from the second mode to the first mode; or
And under the condition that the second timer is not overtime, if the PDCCH is received, restarting the second timer.
Optionally, the PDCCH is a PDCCH scrambled by a C-RNTI or a CS-RNTI; or
The PDCCH is a PDCCH for scheduling new transmission.
Optionally, the processor 610 is further configured to enter the second mode when the first timer expires, where the entering the second mode includes:
switching from the first mode to the second mode, or maintaining the second mode.
Optionally, after the first timer expires, if the PDCCH is received at drx-ShortCycle, the first mode is entered, and the second timer is started or restarted.
Optionally, the terminal obtains a parameter configuration of a short DRX with a network configuration, and performs a related operation according to the parameter configuration of the short DRX after the first timer expires.
Optionally, the parameters of the first mode include at least one of the following parameters:
minimum K0, minimum K1, minimum K2, maximum downlink MIMO layer number and maximum uplink MIMO layer number;
the parameters of the second mode include at least one of:
minimum K0, minimum K1, minimum K2, maximum downlink MIMO layer number and maximum uplink MIMO layer number;
and at least one parameter in the parameters of the first mode and the parameters of the second mode has different values.
Optionally, the length of the second timer is smaller than the length of the first timer.
The terminal can improve the transmission flexibility of the terminal and can also improve the energy-saving effect of the terminal.
It should be understood that, in the embodiment of the present invention, the radio frequency unit 601 may be used for receiving and sending signals during a message sending and receiving process or a call process, and specifically, receives downlink data from a base station and then processes the received downlink data to the processor 610; in addition, the uplink data is transmitted to the base station. In general, radio frequency unit 601 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. Further, the radio frequency unit 601 may also communicate with a network and other devices through a wireless communication system.
The terminal provides wireless broadband internet access to the user through the network module 602, such as helping the user send and receive e-mails, browse web pages, and access streaming media.
The audio output unit 603 may convert audio data received by the radio frequency unit 601 or the network module 602 or stored in the memory 609 into an audio signal and output as sound. Also, the audio output unit 603 can also provide audio output related to a specific function performed by the terminal 600 (e.g., a call signal reception sound, a message reception sound, etc.). The audio output unit 603 includes a speaker, a buzzer, a receiver, and the like.
The input unit 604 is used to receive audio or video signals. The input Unit 604 may include a Graphics Processing Unit (GPU) 6041 and a microphone 6042, and the Graphics processor 6041 processes image data of a still picture or video obtained by an image capturing apparatus (such as a camera) in a video capture mode or an image capture mode. The processed image frames may be displayed on the display unit 606. The image frames processed by the graphic processor 6041 may be stored in the memory 609 (or other storage medium) or transmitted via the radio frequency unit 601 or the network module 602. The microphone 6042 can receive sound, and can process such sound into audio data. The processed audio data may be converted into a format output transmittable to a mobile communication base station via the radio frequency unit 601 in case of the phone call mode.
The terminal 600 also includes at least one sensor 605, such as a light sensor, motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor that can adjust the brightness of the display panel 6061 according to the brightness of ambient light, and a proximity sensor that can turn off the display panel 6061 and/or the backlight when the terminal 600 is moved to the ear. As one of the motion sensors, the accelerometer sensor can detect the magnitude of acceleration in each direction (generally three axes), detect the magnitude and direction of gravity when stationary, and can be used to identify the terminal posture (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration identification related functions (such as pedometer, tapping), and the like; the sensors 605 may also include fingerprint sensors, pressure sensors, iris sensors, molecular sensors, gyroscopes, barometers, hygrometers, thermometers, infrared sensors, etc., which are not described in detail herein.
The display unit 606 is used to display information input by the user or information provided to the user. The Display unit 606 may include a Display panel 6061, and the Display panel 6061 may be configured by a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like.
The user input unit 607 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the terminal. Specifically, the user input unit 607 includes a touch panel 6071 and other input devices 6072. Touch panel 6071, also referred to as a touch screen, may collect touch operations by a user on or near it (e.g., operations by a user on or near touch panel 6071 using a finger, stylus, or any suitable object or accessory). The touch panel 6071 may include two parts of a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 610, receives a command from the processor 610, and executes the command. In addition, the touch panel 6071 can be implemented by various types such as a resistive type, a capacitive type, an infrared ray, and a surface acoustic wave. The user input unit 607 may include other input devices 6072 in addition to the touch panel 6071. Specifically, the other input devices 6072 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a track ball, a mouse, and a joystick, which are not described herein again.
Further, the touch panel 6071 can be overlaid on the display panel 6061, and when the touch panel 6071 detects a touch operation on or near the touch panel 6071, the touch operation is transmitted to the processor 610 to determine the type of the touch event, and then the processor 610 provides a corresponding visual output on the display panel 6061 according to the type of the touch event. Although in fig. 6, the touch panel 6071 and the display panel 6061 are two independent components to realize the input and output functions of the terminal, in some embodiments, the touch panel 6071 and the display panel 6061 may be integrated to realize the input and output functions of the terminal, and this is not limited here.
The interface unit 608 is an interface for connecting an external device to the terminal 600. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input/output (I/O) port, a video I/O port, an earphone port, and the like. The interface unit 608 may be used to receive input (e.g., data information, power, etc.) from an external device and transmit the received input to one or more elements within the terminal 600 or may be used to transmit data between the terminal 600 and an external device.
The memory 609 may be used to store software programs as well as various data. The memory 609 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. Further, the memory 609 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.
The processor 610 is a control center of the terminal, connects various parts of the entire terminal using various interfaces and lines, and performs various functions of the terminal and processes data by operating or executing software programs and/or modules stored in the memory 609 and calling data stored in the memory 609, thereby performing overall monitoring of the terminal. Processor 610 may include one or more processing units; preferably, the processor 610 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into the processor 610.
The terminal 600 may further include a power supply 611 (e.g., a battery) for supplying power to the various components, and preferably, the power supply 611 is logically connected to the processor 610 via a power management system, so that functions of managing charging, discharging, and power consumption are performed via the power management system.
In addition, the terminal 600 includes some functional modules that are not shown, and are not described in detail herein.
Preferably, an embodiment of the present invention further provides a terminal, which includes a processor 610, a memory 609, and a computer program stored in the memory 609 and capable of running on the processor 610, where the computer program is executed by the processor 610 to implement each process of the foregoing embodiment of the mode switching method, and can achieve the same technical effect, and in order to avoid repetition, details are not described here again.
Referring to fig. 7, fig. 7 is a block diagram of another network device according to an embodiment of the present invention, and as shown in fig. 7, the network device 700 includes: a processor 701, a transceiver 702, a memory 703 and a bus interface, wherein:
a processor 701, configured to perform scheduling transmission for a terminal entering a first mode when the terminal starts or restarts a first timer, where the first timer is a drx-inactivytytytimer;
the processor 701 is further configured to switch the scheduled transmission for the terminal from the first mode to a second mode in case the second timer started or restarted by the terminal expires.
Optionally, the second timer is: and the network equipment starts or restarts the timer under the condition of sending the PDCCH to the terminal.
Optionally, the second timer is: the network device starts a timer when the network device sends the PDCCH to the terminal in the first mode, and the network device maintains scheduled transmission in the first mode for the terminal before the second timer is overtime.
Optionally, the second timer is: and if the second timer is overtime and the first timer is not overtime, if the network equipment sends the PDCCH to the terminal, the timer is restarted, and the network equipment is switched from the second mode to the first mode aiming at the scheduling transmission of the terminal.
Optionally, the PDCCH is a PDCCH scrambled by a C-RNTI or a CS-RNTI; or
The PDCCH is a PDCCH for scheduling new transmission.
Optionally, when the first timer is overtime, the terminal enters the second mode for scheduled transmission, where the entering the second mode includes:
switching from the first mode to the second mode, or maintaining the second mode.
Optionally, after the first timer expires, if the network device sends the PDCCH to the terminal in drx-ShortCycle, the terminal enters a first mode for scheduling transmission.
Optionally, the network device configures a short DRX parameter to the terminal, and performs a related operation according to the short DRX parameter configuration after the first timer expires.
Optionally, the parameters of the first mode include at least one of the following parameters:
minimum K0, minimum K1, minimum K2, maximum downlink MIMO layer number and maximum uplink MIMO layer number;
the parameters of the second mode include at least one of:
minimum K0, minimum K1, minimum K2, maximum downlink MIMO layer number and maximum uplink MIMO layer number;
and at least one parameter in the parameters of the first mode and the parameters of the second mode has different values.
Optionally, the length of the second timer is smaller than the length of the first timer.
The network equipment can improve the transmission flexibility of the terminal and can also improve the energy-saving effect of the terminal.
The transceiver 702 is configured to receive and transmit data under the control of the processor 701, and the transceiver 702 includes at least two antenna ports.
In fig. 7, the bus architecture may include any number of interconnected buses and bridges, with one or more processors, represented by processor 701, and various circuits, represented by memory 703, being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 702 may be a number of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over a transmission medium. The user interface 704 may also be an interface capable of interfacing with a desired device for different user devices, including but not limited to a keypad, display, speaker, microphone, joystick, etc.
The processor 701 is responsible for managing the bus architecture and general processing, and the memory 703 may store data used by the processor 701 in performing operations.
Preferably, an embodiment of the present invention further provides a network device, which includes a processor 701, a memory 703, and a computer program stored in the memory 703 and capable of running on the processor 701, where the computer program, when executed by the processor 701, implements each process of the foregoing embodiment of the mode switching method, and can achieve the same technical effect, and details are not described here to avoid repetition.
An embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the method for switching modes at a terminal side according to the embodiment of the present invention is implemented, or when the computer program is executed by a processor, the method for switching modes at a network device side according to the embodiment of the present invention is implemented, and the same technical effect can be achieved, and in order to avoid repetition, details are not repeated here. The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (25)
1. A mode switching method is applied to a terminal and is characterized by comprising the following steps:
entering a first mode under the condition of starting or restarting a first timer, wherein the first timer is a discontinuous reception non-activated timer drx-inactivytytimer;
starting or restarting a second timer, and switching from the first mode to a second mode if the second timer times out.
2. The method of claim 1, wherein the starting or restarting the second timer comprises:
starting or restarting the second timer in case of receiving the PDCCH.
3. The method of claim 2, wherein the starting the second timer on a condition that the PDCCH is received comprises:
the second timer is started on condition that the PDCCH is received in the first mode, and the terminal remains in the first mode until the second timer expires.
4. The method of claim 2, wherein the restarting the second timer on a condition that the PDCCH is received comprises:
under the second mode and the condition that the first timer is not overtime, if the PDCCH is received, restarting the second timer and switching from the second mode to the first mode; or
And if the PDCCH is received under the condition that the second timer is not overtime, restarting the second timer.
5. The method of claim 2, wherein the PDCCH is a PDCCH scrambled by a cell radio network temporary identity C-RNTI or a scheduling configuration radio network temporary identity CS-RNTI; or
The PDCCH is a PDCCH for scheduling new transmission.
6. The method of claim 1, wherein the method further comprises:
entering the second mode if the first timer times out, wherein the entering the second mode comprises:
switching from the first mode to the second mode, or maintaining the second mode.
7. The method of claim 6, wherein after the first timer expires, if the PDCCH is received in a short discontinuous reception period drx-ShortCycle, the first mode is entered, and the second timer is started or restarted.
8. The method of claim 7, wherein the terminal obtains a parameter configuration of short discontinuous reception (SHORT DRX) configured by a network, and performs a relevant operation according to the parameter configuration of the SHORT DRX after the first timer expires.
9. The method according to any of claims 1 to 8, wherein the parameters of the first mode comprise at least one of the following parameters:
minimum K0, minimum K1, minimum K2, maximum downlink MIMO layer number and maximum uplink MIMO layer number;
the parameters of the second mode include at least one of:
minimum K0, minimum K1, minimum K2, maximum downlink MIMO layer number and maximum uplink MIMO layer number;
and at least one parameter in the parameters of the first mode and the parameters of the second mode has different values.
10. The method of any of claims 1 to 8, wherein a length of the second timer is less than a length of the first timer.
11. A mode switching method is applied to network equipment and is characterized by comprising the following steps:
under the condition that a terminal starts or restarts a first timer, scheduling transmission is carried out aiming at the terminal entering a first mode, wherein the first timer is a drx-InactivityTimer;
switching scheduled transmissions for the terminal from the first mode to a second mode if a second timer started or restarted by the terminal times out.
12. The method of claim 11, wherein the second timer is: and the network equipment starts or restarts the timer under the condition of sending the PDCCH to the terminal.
13. The method of claim 12, wherein the second timer is: the network device starts a timer when the network device sends the PDCCH to the terminal in the first mode, and the network device maintains scheduled transmission in the first mode for the terminal before the second timer is overtime.
14. The method of claim 12, wherein the second timer is: and if the second timer is overtime and the first timer is not overtime, if the network equipment sends the PDCCH to the terminal, the timer is restarted, and the network equipment is switched from the second mode to the first mode aiming at the scheduling transmission of the terminal.
15. The method of claim 12, wherein the PDCCH is a C-RNTI or CS-RNTI scrambled PDCCH; or
The PDCCH is a PDCCH for scheduling new transmission.
16. The method of claim 11, wherein the scheduled transmission occurs for the terminal to enter the second mode if the first timer expires, wherein the entering the second mode comprises:
switching from the first mode to the second mode, or maintaining the second mode.
17. The method of claim 16, wherein after the first timer expires, if the network device sends the PDCCH to the terminal at drx-ShortCycle, then entering a first mode for scheduled transmission for the terminal.
18. The method of claim 17, wherein the network device configures a parameter configuration for short DRX to the terminal, and wherein after the first timer expires, the related operations are performed according to the parameter configuration for short DRX.
19. The method according to any of claims 11 to 18, wherein the parameters of the first mode comprise at least one of the following parameters:
minimum K0, minimum K1, minimum K2, maximum downlink MIMO layer number and maximum uplink MIMO layer number;
the parameters of the second mode include at least one of:
minimum K0, minimum K1, minimum K2, maximum downlink MIMO layer number and maximum uplink MIMO layer number;
and at least one parameter in the parameters of the first mode and the parameters of the second mode has different values.
20. The method of any of claims 11 to 18, wherein a length of the second timer is less than a length of the first timer.
21. A terminal, comprising:
the device comprises an entering module, a starting module and a control module, wherein the entering module is used for entering a first mode under the condition of starting or restarting a first timer, and the first timer is drx-InactivityTimer;
and the switching module is used for starting or restarting a second timer, and switching from the first mode to the second mode under the condition that the second timer is overtime.
22. A network device, comprising:
an entry module, configured to perform scheduling transmission for a terminal entering a first mode when the terminal starts or restarts a first timer, where the first timer is a drx-inactivytytimer;
a switching module, configured to switch a scheduled transmission for the terminal from the first mode to a second mode when a second timer started or restarted by the terminal is expired.
23. A terminal, comprising: memory, processor and program stored on the memory and executable on the processor, which when executed by the processor implements the steps in the mode switching method according to any of claims 1 to 10.
24. A network device, comprising: memory, processor and program stored on the memory and executable on the processor, which when executed by the processor implements the steps in the mode switching method according to any of claims 11 to 20.
25. A computer-readable storage medium, characterized in that a computer program is stored thereon, which computer program, when being executed by a processor, carries out the steps in the mode switching method according to one of the claims 1 to 10, or which computer program, when being executed by a processor, carries out the steps in the mode switching method according to one of the claims 11 to 20.
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| CN201910804649.1A CN111836408B (en) | 2019-08-28 | 2019-08-28 | Mode switching method, terminal and network equipment |
| PCT/CN2020/105201 WO2021036649A1 (en) | 2019-08-28 | 2020-07-28 | Mode switching method, terminal and network device |
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| CN201910804649.1A CN111836408B (en) | 2019-08-28 | 2019-08-28 | Mode switching method, terminal and network equipment |
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