Condition switching method and device, terminal and network equipment

Abstract

The invention provides a condition switching method and device, a terminal and network equipment. The method is applied to the terminal, and comprises the following steps: determining target time for allowing triggering condition switching CHO; if the triggering condition of the measurement event is met at the target time, executing condition switching CHO; wherein the measurement event occurs before a first cell enters an energy-saving working state, and the first cell is a service cell of the terminal. Through the conditional switching scheme, before the serving cell of the terminal enters the network energy-saving state, the terminal can keep serving by the original cell as far as possible, and the problem of radio link failure before the terminal executes conditional switching is avoided.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to a conditional switching method, device, terminal and network equipment. Background Art

[0002] Based on the energy-saving requirements of the NR network, on the one hand, a relatively simple network energy-saving technology is introduced, that is, the base station directly shuts down cells with less business or idleness, and notifies the neighboring base stations that the cell has been shut down; on the other hand, in order to improve the energy-saving efficiency of the base station, discontinuous transmission / discontinuous reception (DTX / DRX) for the cell can also be configured. During the non-active time of discontinuous transmission / reception of the cell, the base station can stop sending and receiving signals / channels, for example, stop sending downlink reference signals, dynamic data or periodic signals.

[0003] After the cell enters the above-mentioned Network Energy Saving (NES) state, the cell may not be able to continue to serve the UE, resulting in a radio link failure of the terminal. Summary of the invention

[0004] The purpose of the present application is to provide a conditional switching method, apparatus, terminal and network equipment to solve the problem that a wireless link failure may occur in a terminal after the cell enters the above-mentioned energy-saving state.

[0005] In a first aspect, in order to solve the above technical problems, an embodiment of the present application provides a conditional switching method, which is applied to a terminal, including:

[0006] Determine the target time to allow triggering of Conditional Handover (CHO);

[0007] If the triggering condition of the measurement event is met at the target time, conditional handover CHO is performed; wherein the measurement event occurs before the first cell enters the energy-saving working state, and the first cell is the serving cell of the terminal.

[0008] In some embodiments, determining the target time for triggering the switching of CHO comprises:

[0009] Receive first information sent by a network device, where the first information is used to configure a first target time period; wherein a start time of the first target time period is less than or equal to a start time when the first cell enters the energy-saving working state, or a start time of the first target time period is less than or equal to a start time when the first cell enters a DTX / DRX inactive time period;

[0010] The target time is determined according to the first target time period.

[0011] In some embodiments, when the network device sends DTX / DRX activation signaling within the DTX / DRX activation time period of the first cell, determining the target time for triggering conditional switching CHO includes:

[0012] Receiving second information sent by a network device, where the second information is used to indicate that the target time includes: a time when a DTX / DRX activation signaling of the first cell is received;

[0013] According to the second information, the target time is determined to be the time when the DTX / DRX activation signaling of the first cell is received.

[0014] In some embodiments, determining the target time for triggering the switching of CHO comprises:

[0015] receiving third information sent by a network device, where the third information is used to configure a second target period, and a start time of the second target period is a time when a DTX / DRX activation signaling of the first cell is received;

[0016] The target time is determined according to the second target time period.

[0017] In some embodiments, determining the target time for triggering the switching of CHO comprises:

[0018] receiving DTX / DRX configuration information of the first cell sent by the network device;

[0019] The target time is determined according to the DTX / DRX configuration information of the first cell.

[0020] In some embodiments, determining the target time according to the DTX / DRX configuration information includes:

[0021] Determine, according to the DTX / DRX configuration information of the first cell, a start time at which the first cell enters a DTX / DRX inactive time period;

[0022] Determine the target time according to a third target period; wherein the start time of the third target period is the time when the DTX / DRX activation command is received, and the end time of the third target period is the start time when the first cell enters the DTX / DRX inactive period; or,

[0023] The target time is determined to be the start time of the first cell entering the DTX / DRX inactive time period.

[0024] In some embodiments, determining the target time for triggering the switching of CHO comprises:

[0025] receiving CHO configuration information sent by a network device, where the CHO configuration information is used to configure a trigger condition for the measurement event;

[0026] In the case where the network device sends a DTX / DRX activation command during the DTX / DRX inactive time period of the first cell, the target time is determined according to a fourth target time period; wherein the start time of the fourth target time period is the time when the CHO configuration information is received, and the end time of the fourth target time period is the time when the DTX / DRX activation signaling of the first cell is received.

[0027] In a second aspect, in order to solve the above technical problems, an embodiment of the present application provides a conditional switching method, which is applied to a network device, including:

[0028] Sending first information to the terminal, where the first information is used to configure a first target time period; wherein the start time of the first target time period is less than or equal to the start time when the first cell enters the energy-saving working state, or the start time of the first target time period is less than or equal to the start time when the first cell enters the DTX / DRX inactive time period;

[0029] or,

[0030] Sending second information to the terminal, where the second information is used to indicate that the target time includes: a time when activation signaling of DTX / DRX of the first cell is received;

[0031] or,

[0032] Sending third information to the terminal, where the third information is used to configure a second target time period, and the start time of the second target time period is the time when the DTX / DRX activation signaling of the first cell is received.

[0033] In some embodiments, the above conditional switching method further includes:

[0034] If it is confirmed that the terminal cannot perform conditional switching at the target time, controlling the first cell to deactivate the energy-saving working state;

[0035] Wherein, the target time is determined according to one of the following:

[0036] the first information;

[0037] the second information;

[0038] the third information;

[0039] The DTX / DRX configuration information.

[0040] In a third aspect, in order to solve the above technical problems, an embodiment of the present application provides a terminal, including: a transceiver, a memory, a processor, and a computer program stored in the memory and executable on the processor; the processor is used to read the program in the memory and execute the following process:

[0041] Determine the target time to allow trigger conditions to switch CHO;

[0042] If the triggering condition of the measurement event is met at the target time, conditional handover CHO is performed; wherein the measurement event occurs before the first cell enters the energy-saving working state, and the first cell is the serving cell of the terminal.

[0043] In some embodiments, the processor is further configured to read a program in a memory and execute the following process:

[0044] Receive first information sent by a network device, where the first information is used to configure a first target time period; wherein an end time of the first target time period is less than or equal to a start time when the first cell enters the energy-saving working state, or an end time of the first target time period is less than or equal to a start time when the first cell enters a DTX / DRX inactive time period;

[0045] The target time is determined according to the first target time period.

[0046] In some embodiments, when the network device sends DTX / DRX activation signaling within the DTX / DRX activation time period of the first cell, the processor is further configured to read a program in the memory and execute the following process:

[0047] Receiving second information sent by a network device, where the second information is used to indicate that the target time includes: a time when a DTX / DRX activation signaling of the first cell is received;

[0048] According to the second information, the target time is determined to be the time when the DTX / DRX activation signaling of the first cell is received.

[0049] In some embodiments, the processor is further configured to read a program in a memory and execute the following process:

[0050] receiving third information sent by a network device, where the third information is used to configure a second target period, and a start time of the second target period is a time when a DTX / DRX activation signaling of the first cell is received;

[0051] The target time is determined according to the second target time period.

[0052] In some embodiments, the processor is further configured to read a program in a memory and execute the following process:

[0053] receiving DTX / DRX configuration information of the first cell sent by the network device;

[0054] The target time is determined according to the DTX / DRX configuration information of the first cell.

[0055] In some embodiments, the processor is further configured to read a program in the memory and execute the following process: determining, according to the DTX / DRX configuration information of the first cell, a start time when the first cell enters a DTX / DRX inactive time period;

[0056] Determine the target time according to a third target period; wherein the start time of the third target period is the time when the DTX / DRX activation command is received, and the end time of the third target period is the start time when the first cell enters the DTX / DRX inactive period; or,

[0057] The target time is determined to be the start time of the first cell entering the DTX / DRX inactive time period.

[0058] In some embodiments, the processor is further configured to read a program in a memory and execute the following processes: receiving CHO configuration information sent by a network device, wherein the CHO configuration information is used to configure a trigger condition of the measurement event;

[0059] In the case where the network device sends a DTX / DRX activation command during the DTX / DRX inactive time period of the first cell, the target time is determined according to a fourth target time period; wherein the start time of the fourth target time period is the time when the CHO configuration information is received, and the end time of the fourth target time period is the time when the DTX / DRX activation signaling of the first cell is received.

[0060] In a fourth aspect, in order to solve the above technical problems, an embodiment of the present application provides a network device, including: a transceiver, a memory, a processor, and a computer program stored in the memory and executable on the processor; the processor is used to read the program in the memory and execute the following process:

[0061] Sending first information to the terminal, where the first information is used to configure a first target time period; wherein the end time of the first target time period is less than or equal to the start time when the first cell enters the energy-saving working state, or the end time of the first target time period is less than or equal to the start time when the first cell enters the DTX / DRX inactive time period;

[0062] or,

[0063] Sending second information to the terminal, where the second information is used to indicate that the target time includes: a time when activation signaling of DTX / DRX of the first cell is received;

[0064] or,

[0065] Sending third information to the terminal, where the third information is used to configure a second target time period, and the start time of the second target time period is the time when the DTX / DRX activation signaling of the first cell is received.

[0066] In some embodiments, the processor is further configured to read a program in a memory and execute the following process:

[0067] If it is confirmed that the terminal cannot perform conditional switching at the target time, controlling the first cell to deactivate the energy-saving working state;

[0068] The target time is determined according to one of the following:

[0069] the first information;

[0070] the second information;

[0071] the third information;

[0072] The DTX / DRX configuration information.

[0073] In a fifth aspect, in order to solve the above technical problems, an embodiment of the present application provides a conditional switching device, which is applied to a terminal, including:

[0074] A first determination module is used to determine a target time for allowing a trigger condition to switch the CHO;

[0075] A switching module is used to perform conditional switching CHO if a triggering condition of a measurement event is met at the target time; wherein the measurement event occurs before the first cell enters an energy-saving working state, and the first cell is a serving cell of the terminal.

[0076] In a sixth aspect, in order to solve the above technical problems, an embodiment of the present application provides a conditional switching device, which is applied to a network device, including: a sending module, wherein the sending module is used to:

[0077] Sending first information to the terminal, where the first information is used to configure a first target time period; wherein the end time of the first target time period is less than or equal to the start time when the first cell enters the energy-saving working state, or the end time of the first target time period is less than or equal to the start time when the first cell enters the DTX / DRX inactive time period;

[0078] or,

[0079] Sending second information to the terminal, where the second information is used to indicate that the target time includes: a time when activation signaling of DTX / DRX of the first cell is received;

[0080] or,

[0081] Sending third information to the terminal, where the third information is used to configure a second target time period, and the start time of the second target time period is the time when the DTX / DRX activation signaling of the first cell is received.

[0082] In the seventh aspect, in order to solve the above-mentioned technical problems, an embodiment of the present application provides a processor-readable storage medium, wherein the processor-readable storage medium stores a computer program, and the computer program is used to enable the processor to execute the conditional switching method described in the first aspect, or execute the conditional switching method described in the second aspect.

[0083] The beneficial effects of the above technical solution of the present application are as follows:

[0084] In the above scheme, the measurement event occurs before the serving cell of the terminal enters the energy-saving working state, and the target time for allowing the triggering conditional switching CHO is determined. If the triggering condition of the measurement event is met at the target time, the conditional switching CHO is executed. In this way, the terminal can perform conditional switching based on the target time for allowing the conditional switching, so that the terminal can keep being served by the original cell as much as possible before the serving cell enters the energy-saving working state, and avoid the problem of radio link failure before the terminal performs the conditional switching. BRIEF DESCRIPTION OF THE DRAWINGS

[0085] Figure 1 A schematic diagram of the activation time and inactivation time of Cell DTX / DRX;

[0086] Figure 2 This is one of the schematic diagrams of conditional switching execution timing;

[0087] Figure 3 This is the second diagram of the conditional switching execution timing;

[0088] Figure 4 This is one of the flow charts of the conditional switching method according to an embodiment of the present application;

[0089] Figure 5 This is a third schematic diagram of the conditional switching timing of an embodiment of the present application;

[0090] Figure 6 This is a fourth schematic diagram of the conditional switching timing of an embodiment of the present application;

[0091] Figure 7 This is a fifth schematic diagram of the conditional switching timing of an embodiment of the present application;

[0092] Figure 8 This is a sixth schematic diagram of the conditional switching timing of an embodiment of the present application;

[0093] Fig. 9 This is the seventh schematic diagram of the conditional switching timing of the embodiment of the present application;

[0094] Fig.10 This is the eighth schematic diagram of the conditional switching timing of the embodiment of the present application;

[0095] Fig.11 This is the second flowchart of the conditional switching method of the embodiment of the present application;

[0096] Fig.12 This is one of the structural block diagrams of the conditional switching device of an embodiment of the present application;

[0097] Fig.13 This is the second structural block diagram of the conditional switching device of the embodiment of the present application;

[0098] Fig.14 A schematic diagram of the hardware structure of a terminal according to an embodiment of the present application;

[0099] Fig.15 A schematic diagram of the hardware structure of a network device according to an embodiment of the present application. DETAILED DESCRIPTION

[0100] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0101] In the embodiments of the present application, the term "and / or" describes the association relationship of the associated objects, indicating that three relationships may exist. For example, A and / or B may represent: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the associated objects before and after are in an "or" relationship.

[0102] In the embodiments of the present application, the term "plurality" refers to two or more than two, and other quantifiers are similar.

[0103] The terminal device involved in the embodiment of the present application may be a device that provides voice and / or data connectivity to a user, a handheld device with a wireless connection function, or other processing devices connected to a wireless modem. In different systems, the name of the terminal device may also be different. For example, in a 5G system, the terminal device may be called a user equipment (UE). The wireless terminal device can communicate with one or more core networks (CN) via a radio access network (RAN). The wireless terminal device can be a mobile terminal device, such as a mobile phone (or a "cellular" phone) and a computer with a mobile terminal device. For example, it can be a portable, pocket-sized, handheld, computer-built-in or vehicle-mounted mobile device that exchanges language and / or data with a wireless access network. For example, personal communication service (PCS) phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDA) and other devices. The wireless terminal device may also be referred to as a system, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, an access point, a remote terminal device, an access terminal device, a user terminal device, a user agent, and a user device, but is not limited in the embodiments of the present application.

[0104] The network device involved in the embodiment of the present application may be a base station, which may include multiple cells providing services for the terminal. Depending on the specific application scenario, the base station may also be called an access point, or may be a device in the access network that communicates with the wireless terminal device through one or more sectors on the air interface, or other names. The network device may be used to interchange received air frames with Internet Protocol (IP) packets, and serve as a router between the wireless terminal device and the rest of the access network, wherein the rest of the access network may include an Internet Protocol (IP) communication network. The network device may also coordinate the attribute management of the air interface. For example, the network device involved in the embodiments of the present application may be a network device (Base Transceiver Station, BTS) in the Global System for Mobile communications (Global System for Mobile communications, GSM) or Code Division Multiple Access (Code Division Multiple Access, CDMA), or a network device (NodeB) in Wide-band Code Division Multiple Access (WCDMA), or an evolutionary network device (evolutional Node B, eNB or e-NodeB) in the long term evolution (long term evolution, LTE) system, a 5G base station (gNB) in the 5G network architecture (next generation system), or a home evolved Node B (Home evolved Node B, HeNB), a relay node, a home base station (femto), a pico base station (pico), etc., which is not limited in the embodiments of the present application. In some network structures, the network device may include a centralized unit (CU) node and a distributed unit (DU) node, and the centralized unit and the distributed unit may also be arranged geographically separately.

[0105] Network devices and terminal devices can each use one or more antennas for multiple-input multiple-output (MIMO) transmission. MIMO transmission can be single-user MIMO (SU-MIMO) or multi-user MIMO (MU-MIMO). Depending on the form and number of antenna combinations, MIMO transmission can be 2D-MIMO, 3D-MIMO, FD-MIMO or massive-MIMO, or it can be diversity transmission, precoded transmission or beamforming transmission, etc.

[0106] The following first introduces the contents involved in the solution provided in the embodiment of the present application.

[0107] 1. About NR network energy saving

[0108] Since NR base stations need to work in a large bandwidth (such as 100MHz), a large number of ports (such as 64T / 64R) and a shorter TTI (1ms), the energy consumption of NR base stations in baseband processing, digital front-end and other functions is significantly higher than that of LTE base stations. In addition, the FR2 operating frequency of NR (>6GHz) is relatively high. The higher the frequency, the greater the signal path loss. Therefore, the design principle of NR is to use narrower beams to transmit signals farther. In this way, the number of antenna units used for analog beamforming in NR base stations will increase greatly, which will lead to an increase in the number of RF units and RF channels for transmitting and receiving signals. Each RF channel is equipped with a power amplifier (PA). The energy consumption of PA will account for about 80% of the energy consumption of the entire base station. As the number of PAs increases, the energy consumption of the base station also increases. The current FR1 band AAU generally uses 192 antenna units and supports 64 channels, which is much larger than the maximum number of 8 channels in LTE. According to operator statistics, the average energy consumption of an NR base station is three times that of an LTE base station. Nearly 50% of the cost of deploying 5G networks by operators is electricity. Therefore, NR network energy saving is an important research subject.

[0109] In order to achieve network energy saving, on the one hand, a relatively simple network energy saving technology was introduced, that is, the base station directly shuts down cells with less traffic or idleness and notifies the neighboring base station that the cell has been shut down. If the traffic load of the neighboring cell exceeds a certain threshold, the neighboring base station can request the base station to reopen the previously closed energy-saving cell. On the other hand, the feasibility study of cell discontinuous transmission and discontinuous reception technology to achieve base station energy saving was completed.

[0110] 2. About Discontinuous Transmission (DTX) and Discontinuous Reception (DRX)

[0111] In order to save energy in the network, the base station can perform discontinuous transmission / reception in an implementation manner. For example, according to the discontinuous reception (DRX) configuration of the UE or the configuration of the common signal. For example, stop sending PDCCH to the UE outside the reception activation time of the UE's DRX, and for another example, turn off the downlink baseband and RF transmitter outside the transmission time of the common signal when there is no downlink service, so as to save the energy overhead of the base station.

[0112] UE DRX is a configuration for UE. During the off time of UE DRX, UE may not monitor PDCCH, but may still initiate uplink transmission (such as PUCCH, RACH, SR or CG-PUSCH). However, the DRX activation time (active time) of different UEs is often not synchronized (manifested by different on-duration start time and duration). The base station can only shut down during the inactive time of all UEs, stop downlink transmission and uplink reception, resulting in a short time for the base station to save energy through discontinuous transmission / reception, and the energy saving effect is not ideal.

[0113] In order to improve the energy-saving efficiency of the base station, discontinuous transmission / reception for the cell can be configured, such as Figure 1 In the non-active time of cell discontinuous transmission / reception, the gNB can stop sending and receiving signals / channels, for example, stop sending downlink reference signals, dynamic data or periodic signals. The network can configure the activation time of UE's CDRX within the activation time of cell discontinuous transmission to ensure energy saving on the UE side. When the activation time of CDRX of all UEs is synchronized and aligned with the activation time of Cell DTX / DRX, better network energy saving can be achieved.

[0114] The Cell DTX / DRX configuration information includes: activation time cycle (Cycle), activation time start time offset (start offset), and activation time duration (on duration). The activation time timer of Cell DTX / DRX is started periodically every cycle. The specific activation time and inactivation time of Cell DTX / DRX can be obtained by the activation time duration (on-duration) and the following formula:

[0115] [(SFN*10)+subframe number]modulo(cellDTX-Cycle)=cellDTX-StartOffset; wherein, cellDTX-Cycle and cellDTX-StartOffset are in subframes, SFN is the system frame number, SubframeNumber is the subframe number, modulo indicates a modulo operation, and StartOffset is the starting offset.

[0116] In addition, conditional switching (CHO) is enhanced in network energy-saving scenarios. When a cell enters an energy-saving state, the cell may not be able to continue to serve the UE. Therefore, it is hoped that by configuring conditional switching for the UE, the UE that cannot be served by the energy-saving cell will actively switch to the adjacent cell of the energy-saving cell. For example, when the cell is completely shut down, all UEs need to switch to the neighboring cell; when the cell activates Cell DTX / DRX, that is, when it enters an energy-saving state, the cell cannot continue to serve UEs that do not support Cell DTX / DRX-related capabilities or UEs whose services will be affected by Cell DTX / DRX. These UEs need to switch to neighboring cells. The network can configure a CHO measurement event for the UE before the cell enters the energy-saving working state. When the triggering conditions are met, the UE actively switches to the candidate cell.

[0117] Specifically, when the measurement result of the UE meets the triggering condition of the A3 / A4 / A5 measurement event and the original cell enters the energy-saving working state, the UE performs conditional switching.

[0118] For example, Figure 2 In order to keep the UE connected to the original cell as much as possible before the original cell enters NES, when the UE's measurement results meet the triggering conditions of the A3 / A4 / A5 events and the source cell enters the energy-saving state, the UE performs handover to the candidate non-energy-saving cell. However, in the scenario where the cell is completely closed, on the one hand, the UE cannot know when the cell is closed, and on the other hand, if the measurement event (A3 / A4 / A5) triggering conditions are not met when the cell is closed, the UE will be unable to perform handover, but the cell is closed, and the UE will face a radio link failure.

[0119] For example, in the scenario where a cell activates Cell DTX / DRX, the network can indicate the activation of Cell DTX / DRX to the UE through RRC messages or L1 multicast PDCCH signaling. However, when Cell DTX / DRX is activated, if the triggering conditions of the measurement event (A3 / A4 / A5) are not met, the UE will be unable to perform handover. In this way, the UE may fail to maintain the radio link in the original cell or lose the reference signal measurement of the original cell. Figure 3In the case where the original cell activates Cell DTX / DRX during the inactive time of Cell DTX / DRX, if the measurement event triggering condition of CHO is not met at this time, the UE will continue to stay in the original cell. However, during the inactive time of Cell DTX / DRX, the UE cannot measure the reference signal of the original cell, which will cause the wireless link failure.

[0120] If the terminal does not meet the measurement event (A3 / A4 / A5) triggering conditions when the original cell enters the energy-saving working state, the UE will be unable to perform the handover. At this time, the original cell has entered the energy-saving working state, and deactivating the energy-saving working state of the original cell requires certain signaling interactions and time delays. During this period, the UE will face radio link failure.

[0121] Based on the above, the embodiments of the present application provide a conditional switching method, apparatus, terminal and network equipment to solve how to trigger the terminal to perform conditional switching, so that when the original cell enters the network energy-saving state, the terminal can continue to be served by the original cell as much as possible, and avoid the problem of wireless link failure before the UE performs conditional switching.

[0122] See also Figure 4 , an embodiment of the present application provides a conditional switching method, applied to a terminal, comprising the following steps:

[0123] Step 101: Determine the target time for allowing the trigger condition to switch CHO;

[0124] Specifically, the target time is before the cell is turned off, or the target time is before the cell enters DTX / DRX, or the target time is before the next non-activation time when the cell enters DTX / DRX.

[0125] Step 102: If the triggering condition of the measurement event is met at the target time, conditional handover CHO is performed; wherein the measurement event occurs before the first cell enters the energy-saving working state, and the first cell is the serving cell of the terminal.

[0126] The energy-saving working state includes: cell shut down or cell activation DTX / DRX.

[0127] Specifically, before the first cell enters the energy-saving working state, the network side sends CHO configuration information to the terminal. The terminal performs conditional switching measurement according to the CHO configuration information, and determines whether the triggering condition of the measurement event is met according to the measurement result; wherein the measurement event used for conditional switching may include at least one of the following: A3 event, A4 event and A5 event.

[0128] Specifically, the A3 event is a switching event, which means that the service quality RSRP of the neighboring cell is higher than that of the serving cell by an absolute threshold, triggering the A3 event switching, where the absolute threshold is a comparison value; the A4 event is also a switching event, which means that if the RSRP value of the inter-frequency neighboring cell measured by the UE is greater than the threshold, the UE starts to switch to the inter-frequency neighboring cell, where the threshold is an absolute value; the A5 event means that the service quality of the serving cell is lower than an absolute threshold 1, and the service quality of the area is higher than an absolute threshold 2, triggering the A5 event switching.

[0129] It should be noted that there is no absolute restriction on the order of performing CHO measurement and determining the target time for allowing trigger condition switching. That is, determining the target event may occur after receiving CHO configuration information, after satisfying the trigger condition of the measurement event, or before receiving CHO configuration information.

[0130] It should be noted that the target time is before the first cell is shut down, or the target time is before the first cell enters DTX / DRX, or the target time is before the next inactive time when the cell enters DTX / DRX. In this way, if the terminal cannot perform conditional switching at the target time, the network device side can promptly cancel the shutdown of the first cell or cancel the activation of DTX / DRX of the first cell to avoid wireless link failure, and the terminal can release the configured CHO measurement.

[0131] In the above embodiment, the measurement event is made to occur before the serving cell of the terminal enters the energy-saving working state, and the target time for allowing the triggering conditional switching CHO is determined. If the triggering condition of the measurement event is met at the target time, the conditional switching CHO is executed. In this way, the terminal can keep the service provided by the original first cell as much as possible before the serving cell enters the energy-saving working state based on the target time for allowing the conditional switching, and avoid the problem of radio link failure before the terminal executes the conditional switching.

[0132] In some embodiments, in the above step 101, determining the target time for triggering the switching of CHO includes:

[0133] Receive first information sent by a network device, where the first information is used to configure a first target time period; wherein a start time of the first target time period is less than or equal to a start time when the first cell enters the energy-saving working state, or a start time of the first target time period is less than or equal to a start time when the first cell enters a DTX / DRX inactive time period;

[0134] The target time is determined according to the first target time period.

[0135] Optionally, first information sent by the network device through CHO configuration is received, and the CHO configuration further includes: relevant information for configuring a trigger condition of a measurement event.

[0136] Optionally, the first information may include: a start time T1 of the first target period and an end time T2 of the first target period.

[0137] Optionally, the first information may include: the start time T1 and duration of the first target period.

[0138] It can be understood that the target time for executing the conditional switching is any time point or time period within the first target time period.

[0139] Optionally, the end time of the first target period may be before the start time of the first cell entering the energy-saving working state, or may be after the start time of the first cell entering the energy-saving working state.

[0140] This embodiment is described below in conjunction with Examples 1 to 3.

[0141] Example 1: Application scenario for cell closure.

[0142] like Figure 5 In the embodiment, before the service cell of the terminal is closed, the network device sends a CHO configuration to the terminal, and configures the A3 / A4 / A5 measurement event and the first target time period (T1, T2) for the terminal through the CHO configuration. The first target time (T1, T2) is before the original cell (i.e., the first cell) is closed; after receiving the CHO configuration, the UE performs CHO measurement and determines that the first target time is (T1, T2). The terminal performs CHO measurement according to the CHO configuration, and when it is determined that the triggering condition of the measurement event is met, the terminal performs conditional switching within the first target time period (T1, T2) before the cell is closed. It should be pointed out that if the terminal cannot perform conditional switching within the specified first target time period, the network device cancels the closure of the original cell to avoid UE radio link failure, and the UE can release the configured CHO measurement.

[0143] In this example 1, before the cell is closed, the network configures the A3 / A4 / A5 measurement event and the first target period (T1, T2) for the UE to allow conditional switching, where (T1, T2) is before the cell is closed. When the measurement results meet the triggering conditions of the A3 / A4 / A5 measurement event and the first target period, the UE actively switches to the candidate cell in the first target period. Since the target time for conditional switching is before the original cell is closed, if the conditional switching fails, the network side has enough time to cancel the DTX / DRX of the original cell to avoid radio link failure of the UE.

[0144] Example 2: an application scenario in which a network device activates Cell DTX / DRX during an inactive time of a first cell.

[0145] For this scenario example, if it is necessary to avoid radio link failure of the terminal, the terminal needs to perform conditional switching before activating Cell DTX / DRX in the original cell (ie, the first cell).

[0146] like Figure 6 In the embodiment, before activating DTX / DRX, the network device sends a CHO configuration to the terminal, and configures the A3 / A4 / A5 measurement event and the first target time period (T1, T2) for the terminal through the CHO configuration. The first target time period (T1, T2) is located before the original cell activates DTX / DRX; after receiving the CHO configuration, the UE performs CHO measurement and determines that the first target time is (T1, T2). The terminal performs CHO measurement according to the CHO configuration, and when it is determined that the triggering condition of the measurement event is met, the terminal performs conditional switching within the first target time period (T1, T2) before the original cell activates DTX / DRX. It should be pointed out that if the terminal cannot perform conditional switching within the specified first target time period, the network device deactivates the DTX / DRX of the original cell to avoid UE radio link failure, and the UE can release the configured CHO measurement.

[0147] In the above example 2, before activating the DTX / DRX of the original cell, the network configures the A3 / A4 / A5 measurement event and the first target period (T1, T2) for the UE to allow conditional switching, where (T1, T2) is before activating the DTX / DRX of the original cell. When the measurement results meet the triggering conditions of the A3 / A4 / A5 measurement event and the first target period, the UE actively switches to the candidate cell in the first target period. Since the target time for conditional switching is before the original cell activates DTX / DRX, if the conditional switching fails, the network side has enough time to cancel the activation of the DTX / DRX of the original cell before the original cell activates DTX / DRX, thereby avoiding radio link failure of the UE.

[0148] Example 3: An application scenario in which a network device activates Cell DTX / DRX within the activation time of a first cell.

[0149] For this scenario example, if the terminal needs to avoid radio link failure, the terminal needs to perform conditional switching after the original cell (ie, the first cell) activates Cell DTX / DRX and before the original cell enters the inactive time.

[0150] like Figure 7In the embodiment, before activating the DTX / DRX of the original cell, the network device sends a CHO configuration to the terminal, and configures the A3 / A4 / A5 measurement event and the first target time period (T1, T2) for the terminal through the CHO configuration. The first target time period (T1, T2) is located before the original cell enters the inactive time of Cell DTX / DRX and after activating DTX / DRX; after receiving the CHO configuration, the UE performs CHO measurement and determines that the first target time is (T1, T2). The terminal performs CHO measurement according to the CHO configuration, and when it is determined that the triggering condition of the measurement event is met, the terminal performs conditional switching within the first target time period (T1, T2) before the original cell enters the inactive time of Cell DTX / DRX. It should be pointed out that if the terminal cannot perform conditional switching within the specified first target time period, the network device cancels the activation of the DTX / DRX of the original cell to avoid UE radio link failure, and the UE can release the configured CHO measurement.

[0151] In the above example three, before activating the DTX / DRX of the original cell, the network configures the A3 / A4 / A5 measurement event and the first target period (T1, T2) for the UE to allow conditional switching, where (T1, T2) is before the original cell enters the inactive time of DTX / DRX. When the measurement results meet the triggering conditions of the A3 / A4 / A5 measurement event and the first target period, the UE actively switches to the candidate cell in the first target period. In this example three, since the target time for conditional switching is before the inactive time of DTX / DRX, if the conditional switching fails, the network side has enough time to cancel the DTX / DRX of the original cell before the original cell enters the inactive time, thereby avoiding the UE from experiencing a radio link failure.

[0152] In the above embodiment, since the start time of the first target time period may be before the start time of the first cell entering the energy-saving working state or before the inactive time of entering DTX / DRX, the terminal may complete the conditional switching in time before the first cell enters the energy-saving working state or before the inactive time of entering DTX / DRX, thereby avoiding wireless link failure of the UE.

[0153] In some embodiments, when the network device sends DTX / DRX activation signaling within the DTX / DRX activation time period of the first cell, in the above step 101, determining the target time for triggering conditional switching CHO includes:

[0154] Receiving second information sent by a network device, where the second information is used to indicate that the target time includes: a time when a DTX / DRX activation signaling of the first cell is received;

[0155] According to the second information, the target time is determined to be the time when the DTX / DRX activation signaling of the first cell is received.

[0156] Optionally, the cell DTX / DRX activation signaling includes: RRC message or layer 1 (L1) multicast PDCCH signaling.

[0157] It can be understood that, in this embodiment, the target time for executing the conditional switching is the time point when the DTX / DRX activation signaling is received.

[0158] Exemplarily, when the network device sends DTX / DRX activation signaling within the DTX / DRX activation time period of the first cell, the network device sends a CHO configuration to the terminal before activating the DTX / DRX of the original cell, and configures an A3 / A4 / A5 measurement event and the second information for the terminal through the CHO configuration. The target time indicated by the second information includes: the time when the DTX / DRX activation signaling of the first cell is received; to avoid radio link failure of the terminal, the network device needs to send DTX / DRX activation signaling within the DTX / DRX activation time of the original cell (i.e., the first cell); the terminal performs conditional switching when receiving the DTX / DRX activation signaling according to the CHO configuration.

[0159] In the above embodiment, the network device sends DTX / DRX activation signaling within the DTX / DRX activation time period of the first cell, and the terminal performs conditional switching when receiving the DTX / DRX activation signaling. Since the conditional switching is performed within the activation time of DTX / DRX, if the conditional switching fails, the network side has enough time to cancel the activation of the DTX / DRX of the original cell before the original cell enters the inactive time, which can avoid the UE from experiencing a radio link failure and can achieve the goal of maintaining the service provided by the original cell to the terminal as much as possible.

[0160] In some embodiments, in the above step 101, determining the target time for triggering the switching of CHO includes:

[0161] receiving third information sent by a network device, where the third information is used to configure a second target period, and a start time of the second target period is a time when a DTX / DRX activation signaling of the first cell is received;

[0162] The target time is determined according to the second target time period.

[0163] It can be understood that the target time for executing the conditional switching is any time point or time period within the second target time period.

[0164] For example, Figure 8In the case where the network device sends the DTX / DRX activation signaling of the first cell within the DTX / DRX activation time period of the first cell, the second target time period (T1, T2) is located after receiving the DTX / DRX activation signaling of the original cell and before the original cell enters the inactive time of Cell DTX / DRX; before activating the DTX / DRX of the original cell, the network device sends the CHO configuration to the UE, and after receiving the CHO configuration, the UE performs CHO measurement and determines that the second target time is (the time when the DTX / DRX activation signaling of the first cell is received, T2). The terminal performs CHO measurement according to the CHO configuration, and when it is determined that the triggering condition of the measurement event is met, the terminal performs conditional switching within the second target time period (the time when the DTX / DRX activation signaling of the first cell is received, T2). It should be noted that if the terminal cannot perform conditional switching within the specified second target time period, the network device cancels the activation of the DTX / DRX of the original cell to avoid UE radio link failure, and the UE can release the configured CHO measurement.

[0165] In the above example, the second target period that allows triggering conditional switching is configured after receiving the DTX / DRX activation signaling of the original cell and before the original cell enters the inactive time of Cell DTX / DRX. When the measurement result meets the triggering condition of the A3 / A4 / A5 measurement event, the UE actively switches to the candidate cell in the second target period. Since the conditional switching is performed within the activation time of DTX / DRX, if the conditional switching fails, before the original cell enters the inactive time, the network side has enough time to cancel the activation of the DTX / DRX of the original cell, which can avoid the UE from experiencing a radio link failure and can achieve the goal of maintaining the service provided by the original cell to the terminal as much as possible.

[0166] In some embodiments, in the above step 101, determining the target time for triggering the switching of CHO includes:

[0167] receiving DTX / DRX configuration information of the first cell sent by the network device;

[0168] The target time is determined according to the DTX / DRX configuration information of the first cell.

[0169] Optionally, the DTX / DRX configuration information includes: an activation time cycle (Cycle), an activation time start time offset (start offset), and an activation time duration (on duration).

[0170] It should be noted that the target time is before the next inactive time when the first cell enters DTX / DRX.

[0171] The above embodiment can be applied to the case where the network device sends the DTX / DRX activation command of the first cell within the DTX / DRX activation time period of the first cell, and the terminal receives the DTX / DRX configuration information of the first cell sent by the network device; according to the DTX / DRX configuration information of the first cell, the target time is determined so that the target time is before the next non-activation time when the first cell enters DTX / DRX, so that the original cell can be used to provide services to the terminal as much as possible, and because the conditional switching is performed within the activation time of DTX / DRX, if the conditional switching fails, the network side has enough time to deactivate the DTX / DRX of the original cell before the original cell enters the non-activation time, thereby avoiding wireless link failure of the UE.

[0172] Further, in some embodiments, determining the target time according to the DTX / DRX configuration information includes:

[0173] Determine, according to the DTX / DRX configuration information of the first cell, a start time at which the first cell enters a DTX / DRX inactive time period;

[0174] Determine the target time according to the third target time period; wherein the start time of the third target time period is the time when the DTX / DRX activation command is received, and the end time of the third target time period is the start time when the first cell enters the DTX / DRX non-activation time period; or, determine the target time as the start time when the first cell enters the DTX / DRX non-activation time period.

[0175] It can be understood that the target time for executing the conditional switching is any time point or time period within the third target time period.

[0176] For example, Fig. 9 In the process, the network device sends the DTX / DRX configuration and CHO configuration to the terminal before activating DTX / DRX in the original cell; through the DTX / DRX related configuration information, the UE is informed when the original cell enters the Cell DTX / DRX non-activation time. After receiving the CHO configuration, the UE performs CHO measurement and determines the third target time (the time period indicated by CHO execution in the figure) according to the DTX / DRX configuration. The terminal performs CHO measurement according to the CHO configuration to determine whether the triggering condition of the measurement event is met. The network sends the Cell DTX / DRX activation signaling to the terminal within the activation time of Cell DTX / DRX, including RRC message or L1 multicast PDCCH signaling. If the triggering condition of the measurement event is met, after receiving the DTX / DRX activation signaling, the terminal performs conditional switching within the third target time period after receiving the DTX / DRX activation signaling.

[0177] It should be noted that if the terminal cannot perform conditional switching within the specified third target period, the network device deactivates the DTX / DRX of the original cell to avoid UE radio link failure, and the UE can release the configured CHO measurement.

[0178] The above embodiment can be applied to the scenario where the network sends Cell DTX / DRX activation signaling within the activation time of Cell DTX / DRX, and the UE can choose to perform switching at any time before the original cell enters the Cell DTX / DRX inactive time, for example, perform switching when the original cell enters the Cell DTX / DRX inactive time. In this way, the original cell can be used to provide services to the terminal as much as possible, and because the conditional switching is performed within the activation time of DTX / DRX, if the conditional switching fails, the network side has enough time to cancel the DTX / DRX of the original cell before the original cell enters the inactive time, which can avoid the UE from experiencing a radio link failure.

[0179] In some embodiments, in the above step 101, determining the target time for triggering the switching of CHO includes:

[0180] receiving CHO configuration information sent by a network device, where the CHO configuration information is used to configure a trigger condition for the measurement event;

[0181] In the case where the network device sends a DTX / DRX activation command during the DTX / DRX inactive time period of the first cell, the target time is determined according to a fourth target time period; wherein the start time of the fourth target time period is the time when the CHO configuration information is received, and the end time of the fourth target time period is the time when the DTX / DRX activation signaling of the first cell is received.

[0182] For example, Fig.10In the figure, the fourth target time period (the time period indicated by CHO execution in the figure) is after receiving the CHO configuration information sent by the network device and before the original cell (i.e., the first cell) activates Cell DTX / DRX; before activating the DTX / DRX of the original cell, the network device sends the CHO configuration and DTX / DRX configuration to the UE, and after receiving the CHO configuration, the UE performs CHO measurement, and determines that the target time for performing conditional switching is the fourth target time period after receiving the CHO configuration and before the original cell activates CellDTX / DRX. The terminal performs CHO measurement according to the CHO configuration, and when it is determined that the triggering conditions of the measurement event are met, the terminal performs conditional switching within the fourth target time period. It should be pointed out that if the terminal cannot perform conditional switching within the specified fourth target time period, the network device deactivates the DTX / DRX of the original cell to avoid UE wireless link failure, and the UE can release the configured CHO measurement.

[0183] The above embodiment can be applied to the scenario where the network sends Cell DTX / DRX activation signaling during the inactive time of Cell DTX / DRX. In this scenario, to avoid radio link failure of the terminal, the terminal performs conditional switching in the fourth target period between receiving the CHO configuration and activating Cell DTX / DRX in the original cell. The network only needs to configure A3 / A4 / A5 measurement events for the terminal through the CHO configuration information. Moreover, since the conditional switching is performed before the original cell activates DTX / DRX, if the conditional switching fails, the network side has enough time to cancel the activation of the original cell's DTX / DRX before the original cell enters the inactive time, thereby avoiding radio link failure of the UE.

[0184] See also Fig.11 The present application embodiment provides a conditional switching method, which is applied to a network device and includes the following steps:

[0185] Step 201: Send first information to the terminal, where the first information is used to configure a first target time period; wherein the start time of the first target time period is less than or equal to the start time of the first cell entering the energy-saving working state, or, the start time of the first target time period is less than or equal to the start time of the first cell entering the DTX / DRX non-activation time period; or, send second information to the terminal, where the second information is used to indicate that the target time includes: the time when the DTX / DRX activation signaling of the first cell is received; or, send third information to the terminal, where the third information is used to configure a second target time period, and the start time of the second target time period is the time when the DTX / DRX activation signaling of the first cell is received.

[0186] In this embodiment, by sending the first information, the second information or the third information to the terminal, the terminal can determine the target time for allowing the conditional switching to be performed based on the first information, the second information or the third information. The terminal can, based on the target time for allowing the conditional switching to be performed, enable the terminal to maintain the service provided by the original first cell as much as possible before the service cell enters the energy-saving working state, and avoid the problem of wireless link failure before the terminal performs the conditional switching.

[0187] In some embodiments, the above conditional switching method further includes:

[0188] If it is confirmed that the terminal cannot perform conditional switching at the target time, controlling the first cell to deactivate the energy-saving working state;

[0189] The target time is determined according to one of the following:

[0190] the first information;

[0191] the second information;

[0192] the third information;

[0193] The DTX / DRX configuration information.

[0194] In this embodiment, if it is confirmed that the terminal cannot perform conditional switching at the target time, the first cell is controlled to deactivate the energy-saving working state, which can timely avoid the terminal from experiencing a radio link failure.

[0195] See also Fig.12 The embodiment of the present application provides a condition switching device 1200, which is applied to a terminal and includes:

[0196] The first determining module 1201 is used to determine the target time for allowing the trigger condition to switch the CHO;

[0197] The switching module 1202 is used to perform conditional switching CHO if the triggering condition of the measurement event is met at the target time; wherein the measurement event occurs before the first cell enters the energy-saving working state, and the first cell is the serving cell of the terminal.

[0198] In some embodiments, the first determining module 1201 includes:

[0199] A first receiving unit, configured to receive first information sent by a network device, wherein the first information is used to configure a first target time period; wherein a start time of the first target time period is less than or equal to a start time of the first cell entering the energy-saving working state, or a start time of the first target time period is less than or equal to a start time of the first cell entering a DTX / DRX inactive time period;

[0200] The first determining unit is used to determine the target time according to the first target time period.

[0201] In some embodiments, when the network device sends DTX / DRX activation signaling within the DTX / DRX activation time period of the first cell, the first determining module 1201 includes:

[0202] A second receiving unit, configured to receive second information sent by a network device, where the second information is used to indicate that the target time includes: a time when a DTX / DRX activation signaling of the first cell is received;

[0203] The second determination unit is used to determine, according to the second information, that the target time is the time when the DTX / DRX activation signaling of the first cell is received.

[0204] In some embodiments, the first determining module 1201 includes:

[0205] a third receiving unit, configured to receive third information sent by the network device, where the third information is used to configure a second target period, and a start time of the second target period is a time when a DTX / DRX activation signaling of the first cell is received;

[0206] The third determining unit is used to determine the target time according to the second target time period.

[0207] In some embodiments, the first determining module 1201 includes:

[0208] A fourth receiving unit, configured to receive DTX / DRX configuration information of the first cell sent by the network device;

[0209] The fourth determination unit is used to determine the target time according to the DTX / DRX configuration information of the first cell.

[0210] In some embodiments, the first determining module 1201 includes:

[0211] a fifth determining unit, configured to determine, according to the DTX / DRX configuration information of the first cell, a start time at which the first cell enters a DTX / DRX inactive time period;

[0212] The sixth determination unit is used to determine the target time according to the third target time period; wherein the start time of the third target time period is the time when the DTX / DRX activation command is received, and the end time of the third target time period is the start time when the first cell enters the DTX / DRX non-activation time period; or, the target time is determined to be the start time when the first cell enters the DTX / DRX non-activation time period.

[0213] In some embodiments, the first determining module 1201 includes:

[0214] a fifth receiving unit, configured to receive CHO configuration information sent by a network device, wherein the CHO configuration information is used to configure a trigger condition of the measurement event;

[0215] The seventh determination unit is used to determine the target time according to the fourth target time period when the network device sends a DTX / DRX activation command during the DTX / DRX inactive time period of the first cell; wherein the start time of the fourth target time period is the time when the CHO configuration information is received, and the end time of the fourth target time period is the time when the DTX / DRX activation signaling of the first cell is received.

[0216] It should be noted here that the above-mentioned device 1200 provided in the embodiment of the present application can implement all the method steps implemented by the method embodiment on the above-mentioned terminal side, and can achieve the same technical effect. The parts and beneficial effects that are the same as the method embodiment in this embodiment will not be described in detail here.

[0217] See also Fig.13 , the embodiment of the present application provides a conditional switching device 1300, applied to a network device, including: a sending module 1300;

[0218] The sending module is used to: send first information to the terminal, the first information is used to configure a first target time period; wherein the start time of the first target time period is less than or equal to the start time of the first cell entering the energy-saving working state, or the start time of the first target time period is less than or equal to the start time of the first cell entering the DTX / DRX non-activation time period; or, send second information to the terminal, the second information is used to indicate that the target time includes: the time when the DTX / DRX activation signaling of the first cell is received; or, send third information to the terminal, the third information is used to configure a second target time period, and the start time of the second target time period is the time when the DTX / DRX activation signaling of the first cell is received.

[0219] In some embodiments, the apparatus 1300 further includes:

[0220] A control module, configured to control the first cell to deactivate the energy-saving working state when it is confirmed that the terminal cannot perform conditional switching at the target time;

[0221] The target time is determined according to one of the following:

[0222] the first information;

[0223] the second information;

[0224] the third information;

[0225] The DTX / DRX configuration information.

[0226] It should be noted here that the above-mentioned device 1300 provided in the embodiment of the present application can implement all the method steps implemented by the method embodiment on the above-mentioned network device side, and can achieve the same technical effect. The parts and beneficial effects that are the same as the method embodiment in this embodiment will not be described in detail here.

[0227] See also Fig.14 , the embodiment of the present application provides a terminal, including: a processor 1410; and a memory 1420 connected to the processor 1410 through a bus interface, the memory 1420 is used to store programs and data used by the processor 1410 when performing operations, and the processor 1410 calls and executes the programs and data stored in the memory 1420. Among them, the transceiver 1400 is connected to the bus interface, and is used to receive and send data under the control of the processor 1410; the processor 1410 is used to read the program in the memory 1420 and perform the following processes:

[0228] Determine the target time to allow trigger conditions to switch CHO;

[0229] If the triggering condition of the measurement event is met at the target time, conditional handover CHO is performed; wherein the measurement event occurs before the first cell enters the energy-saving working state, and the first cell is the serving cell of the terminal.

[0230] In some embodiments, the processor 1410 is further configured to read a program in the memory 1420 and execute the following process:

[0231] Receive first information sent by a network device, where the first information is used to configure a first target time period; wherein a start time of the first target time period is less than or equal to a start time when the first cell enters the energy-saving working state, or a start time of the first target time period is less than or equal to a start time when the first cell enters a next non-active time period of DTX / DRX;

[0232] The target time is determined according to the first target time period.

[0233] In some embodiments, when the network device sends DTX / DRX activation signaling within the DTX / DRX activation time period of the first cell, the processor 1410 is further configured to read a program in the memory 1420 and perform the following process:

[0234] Receiving second information sent by a network device, where the second information is used to indicate that the target time includes: a time when a DTX / DRX activation signaling of the first cell is received;

[0235] According to the second information, the target time is determined to be the time when the DTX / DRX activation signaling of the first cell is received.

[0236] In some embodiments, the processor 1410 is further configured to read a program in the memory 1420 and execute the following process:

[0237] receiving third information sent by a network device, where the third information is used to configure a second target period, and a start time of the second target period is a time when a DTX / DRX activation signaling of the first cell is received;

[0238] The target time is determined according to the second target time period.

[0239] In some embodiments, the processor 1410 is further configured to read a program in the memory 1420 and execute the following process:

[0240] receiving DTX / DRX configuration information of the first cell sent by the network device;

[0241] The target time is determined according to the DTX / DRX configuration information of the first cell.

[0242] In some embodiments, the processor 1410 is further configured to read a program in the memory 1420 and execute the following process:

[0243] Determine, according to the DTX / DRX configuration information of the first cell, a start time at which the first cell enters a DTX / DRX inactive time period;

[0244] Determine the target time according to a third target period; wherein the start time of the third target period is the time when the DTX / DRX activation command is received, and the end time of the third target period is the start time when the first cell enters the DTX / DRX inactive period; or,

[0245] The target time is determined to be the start time of the first cell entering the DTX / DRX inactive time period.

[0246] In some embodiments, the processor 1410 is further configured to read a program in the memory 1420 and execute the following process:

[0247] receiving CHO configuration information sent by a network device, where the CHO configuration information is used to configure a trigger condition for the measurement event;

[0248] In the case where the network device sends a DTX / DRX activation command within the DTX / DRX inactive time period of the first cell, the target time is determined according to a fourth target time period; wherein the start time of the fourth target time period is the time when the CHO configuration information is received, and the fourth target time period is

[0249] Among them, Fig.14 In the embodiment, the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by processor 1410 and various circuits of memory represented by memory 1420 are linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and are therefore not further described herein. The bus interface provides an interface. The transceiver 1400 may be a plurality of components, namely, a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium, including wireless channels, wired channels, optical cables, and other transmission media. For different user devices, the user interface 1430 may also be an interface capable of externally and internally connecting required devices, and the connected devices include but are not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.

[0250] The processor 1410 is responsible for managing the bus architecture and general processing, and the memory 1420 can store data used by the processor 1410 when performing operations.

[0251] Optionally, the processor 1410 may be a CPU (central processing unit), an ASIC (Application Specific Integrated Circuit), an FPGA (Field-Programmable Gate Array) or a CPLD (Complex Programmable Logic Device), and the processor may also adopt a multi-core architecture.

[0252] The processor calls the computer program stored in the memory to execute any of the methods provided in the embodiments of the present application according to the obtained executable instructions. The processor and the memory can also be arranged physically separately.

[0253] See also Fig.15An embodiment of the present application provides a network device, including: a processor 1510; and a memory 1520 connected to the processor 1510 through a bus interface, the memory 1520 is used to store programs and data used by the processor 1510 when performing operations, and the processor 1510 calls and executes the programs and data stored in the memory 1520.

[0254] The transceiver 1500 is connected to the bus interface and is used to receive and send data under the control of the processor 1510; the processor 1510 is used to read the program in the memory 1520 and execute the following process:

[0255] Sending first information to the terminal, where the first information is used to configure a first target time period; wherein the start time of the first target time period is less than or equal to the start time when the first cell enters the energy-saving working state, or the start time of the first target time period is less than or equal to the start time when the first cell enters the DTX / DRX inactive time period;

[0256] or,

[0257] Sending second information to the terminal, where the second information is used to indicate that the target time includes: a time when activation signaling of DTX / DRX of the first cell is received;

[0258] or,

[0259] Sending third information to the terminal, where the third information is used to configure a second target time period, and the start time of the second target time period is the time when the DTX / DRX activation signaling of the first cell is received.

[0260] In some embodiments, the processor 1510 is further configured to read a program in the memory 1520 and execute the following process:

[0261] If it is confirmed that the terminal cannot perform conditional switching at the target time, controlling the first cell to deactivate the energy-saving working state;

[0262] Wherein, the target time is determined according to one of the following:

[0263] the first information;

[0264] the second information;

[0265] the third information;

[0266] The DTX / DRX configuration information.

[0267] Among them, Fig.15In the embodiment, the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by processor 1510 and various circuits of memory represented by memory 1520 are linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and are therefore not further described herein. The bus interface provides an interface. The transceiver 1500 may be a plurality of components, namely, a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium, which transmission medium may include a wireless channel, a wired channel, an optical cable, and other transmission media. The processor 1510 is responsible for managing the bus architecture and general processing, and the memory 1520 may store data used by the processor 1510 when performing operations.

[0268] The processor 1510 may be a central processing unit (CPU), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or a complex programmable logic device (CPLD). The processor may also adopt a multi-core architecture.

[0269] The present application also provides a processor-readable storage medium, characterized in that the processor-readable storage medium stores a computer program, and the computer program is used to enable the processor to execute the conditional switching method on the terminal side or the network device side as above.

[0270] The processor-readable storage medium can be any available medium or data storage device that can be accessed by the processor, including but not limited to magnetic storage (such as floppy disks, hard disks, magnetic tapes, magneto-optical disks (MO), etc.), optical storage (such as CD, DVD, BD, HVD, etc.), and semiconductor storage (such as ROM, EPROM, EEPROM, non-volatile memory (NANDFLASH), solid-state drive (SSD)), etc.

[0271] It should be noted that the division of units in the embodiments of the present application is schematic and is only a logical function division. There may be other division methods in actual implementation. In addition, each functional unit in each embodiment of the present application may be integrated into a processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0272] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a processor-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions to enable a computer device (which can be a personal computer, server, or network device, etc.) or a processor (processor) to perform all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), disk or optical disk and other media that can store program codes.

[0273] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application may adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) that contain computer-usable program code.

[0274] These processor executable instructions may also be stored in a processor readable memory that can direct a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the processor readable memory produce an article of manufacture including an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0275] These processor-executable instructions may also be loaded onto a computer or other programmable data processing device so that a series of operational steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for executing on the computer or other programmable device to implement the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0276] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. A conditional switching method, characterized in that: Applied to terminals, including: Determine the target time to allow the trigger condition to switch CHO; If the triggering condition of the measurement event is met at the target time, conditional handover CHO is performed; wherein the measurement event occurs before the first cell enters the energy-saving working state, and the first cell is the serving cell of the terminal.

2. The conditional switching method according to claim 1, characterized in that: Determining the target time for triggering condition switching CHO includes: Receive first information sent by a network device, where the first information is used to configure a first target time period; wherein a start time of the first target time period is less than or equal to a start time when the first cell enters the energy-saving working state, or a start time of the first target time period is less than or equal to a start time when the first cell enters a non-activated time period of discontinuous transmission DTX / discontinuous reception DRX; The target time is determined according to the first target time period.

3. The conditional switching method according to claim 1, characterized in that: In a case where the network device sends DTX / DRX activation signaling within the DTX / DRX activation time period of the first cell, determining a target time for triggering condition switching CHO includes: Receiving second information sent by a network device, where the second information is used to indicate that the target time includes: a time when a DTX / DRX activation signaling of the first cell is received; According to the second information, the target time is determined to be the time when the DTX / DRX activation signaling of the first cell is received.

4. The conditional switching method according to claim 1, characterized in that: Determining the target time for triggering condition switching CHO includes: receiving third information sent by a network device, where the third information is used to configure a second target period, and a start time of the second target period is a time when a DTX / DRX activation signaling of the first cell is received; The target time is determined according to the second target time period.

5. The conditional switching method according to claim 1, characterized in that: Determining the target time for triggering condition switching CHO includes: receiving DTX / DRX configuration information of the first cell sent by the network device; The target time is determined according to the DTX / DRX configuration information of the first cell.

6. The conditional switching method according to claim 5, characterized in that: The determining the target time according to the DTX / DRX configuration information includes: Determine, according to the DTX / DRX configuration information of the first cell, a start time at which the first cell enters a DTX / DRX inactive time period; Determine the target time according to a third target period; wherein the start time of the third target period is the time when the DTX / DRX activation command is received, and the end time of the third target period is the start time when the first cell enters the DTX / DRX inactive period; or, The target time is determined to be the start time of the first cell entering the DTX / DRX inactive time period.

7. The conditional switching method according to claim 1, characterized in that: Determining the target time for triggering condition switching CHO includes: receiving CHO configuration information sent by a network device, where the CHO configuration information is used to configure a trigger condition for the measurement event; In the case where the network device sends a DTX / DRX activation command during the DTX / DRX inactive time period of the first cell, the target time is determined according to a fourth target time period; wherein the start time of the fourth target time period is the time when the CHO configuration information is received, and the end time of the fourth target time period is the time when the DTX / DRX activation signaling of the first cell is received.

8. A conditional switching method, characterized in that: Applied to network equipment, including: Sending first information to the terminal, where the first information is used to configure a first target time period; wherein the start time of the first target time period is less than or equal to the start time when the first cell enters the energy-saving working state, or the start time of the first target time period is less than or equal to the start time when the first cell enters the DTX / DRX inactive time period; or, Sending second information to the terminal, where the second information is used to indicate that the target time includes: a time when activation signaling of DTX / DRX of the first cell is received; or, Sending third information to the terminal, where the third information is used to configure a second target time period, and the start time of the second target time period is the time when the DTX / DRX activation signaling of the first cell is received.

9. The conditional switching method according to claim 8, characterized in that: The method further comprises: If it is confirmed that the terminal cannot perform conditional switching at the target time, controlling the first cell to deactivate the energy-saving working state; Wherein, the target time is determined according to one of the following: the first information; the second information; the third information; The DTX / DRX configuration information.

10. A terminal, comprising: A transceiver, a memory, a processor, and a computer program stored in the memory and executable on the processor; wherein the processor is configured to read the program in the memory and execute the following process: Determine the target time to allow the trigger condition to switch CHO; If the triggering condition of the measurement event is met at the target time, conditional handover CHO is performed; wherein the measurement event occurs before the first cell enters the energy-saving working state, and the first cell is the serving cell of the terminal.

11. The terminal according to claim 10, characterized in that: The processor is also used to read the program in the memory and execute the following process: Receive first information sent by a network device, where the first information is used to configure a first target time period; wherein a start time of the first target time period is less than or equal to a start time when the first cell enters the energy-saving working state, or a start time of the first target time period is less than or equal to a start time when the first cell enters a DTX / DRX inactive time period; The target time is determined according to the first target time period.

12. The terminal according to claim 10, characterized in that: In a case where the network device sends DTX / DRX activation signaling within the DTX / DRX activation time period of the first cell, the processor is further configured to read a program in the memory and execute the following process: Receiving second information sent by a network device, where the second information is used to indicate that the target time includes: a time when a DTX / DRX activation signaling of the first cell is received; According to the second information, the target time is determined to be the time when the DTX / DRX activation signaling of the first cell is received.

13. The terminal according to claim 10, characterized in that: The processor is also used to read the program in the memory and execute the following process: receiving third information sent by a network device, where the third information is used to configure a second target period, and a start time of the second target period is a time when a DTX / DRX activation signaling of the first cell is received; The target time is determined according to the second target time period.

14. The terminal according to claim 10, characterized in that: The processor is also used to read the program in the memory and execute the following process: receiving DTX / DRX configuration information of the first cell sent by the network device; The target time is determined according to the DTX / DRX configuration information of the first cell.

15. The terminal according to claim 14, characterized in that: The processor is also used to read the program in the memory and execute the following process: Determine, according to the DTX / DRX configuration information of the first cell, a start time at which the first cell enters a DTX / DRX inactive time period; Determine the target time according to a third target period; wherein the start time of the third target period is the time when the DTX / DRX activation command is received, and the end time of the third target period is the start time when the first cell enters the DTX / DRX inactive period; or, The target time is determined to be the start time of the first cell entering the DTX / DRX inactive time period.

16. The terminal according to claim 10, characterized in that: The processor is further configured to read a program in the memory and execute the following processes: receiving CHO configuration information sent by a network device, wherein the CHO configuration information is used to configure a trigger condition of the measurement event; In the case where the network device sends a DTX / DRX activation command during the DTX / DRX inactive time period of the first cell, the target time is determined according to a fourth target time period; wherein the start time of the fourth target time period is the time when the CHO configuration information is received, and the end time of the fourth target time period is the time when the DTX / DRX activation signaling of the first cell is received.

17. A network device comprising: A transceiver, a memory, a processor, and a computer program stored in the memory and executable on the processor; wherein the processor is configured to read the program in the memory and execute the following process: Sending first information to the terminal, where the first information is used to configure a first target time period; wherein the start time of the first target time period is less than or equal to the start time when the first cell enters the energy-saving working state, or the start time of the first target time period is less than or equal to the start time when the first cell enters the DTX / DRX inactive time period; or, Sending second information to the terminal, where the second information is used to indicate that the target time includes: a time when activation signaling of DTX / DRX of the first cell is received; or, Sending third information to the terminal, where the third information is used to configure a second target time period, and the start time of the second target time period is the time when the DTX / DRX activation signaling of the first cell is received.

18. The network device according to claim 17, characterized in that: The processor is also used to read the program in the memory and execute the following process: If it is confirmed that the terminal cannot perform conditional switching at the target time, controlling the first cell to deactivate the energy-saving working state; Wherein, the target time is determined according to one of the following: the first information; the second information; the third information; The DTX / DRX configuration information.

19. A condition switching device, characterized in that: Applied to terminals, including: A first determination module is used to determine a target time for allowing a trigger condition to switch the CHO; A switching module is used to perform conditional switching CHO if a triggering condition of a measurement event is met at the target time; wherein the measurement event occurs before the first cell enters an energy-saving working state, and the first cell is a serving cell of the terminal.

20. A condition switching device, characterized in that: Applied to a network device, comprising: a sending module, wherein the sending module is used for: Sending first information to the terminal, where the first information is used to configure a first target time period; wherein the start time of the first target time period is less than or equal to the start time when the first cell enters the energy-saving working state, or the start time of the first target time period is less than or equal to the start time when the first cell enters the DTX / DRX inactive time period; or, Sending second information to the terminal, where the second information is used to indicate that the target time includes: a time when activation signaling of DTX / DRX of the first cell is received; or, Sending third information to the terminal, where the third information is used to configure a second target time period, and the start time of the second target time period is the time when the DTX / DRX activation signaling of the first cell is received.

21. A processor-readable storage medium, characterized in that: The processor-readable storage medium stores a computer program, and the computer program is used to enable the processor to execute the conditional switching method described in any one of claims 1 to 7, or execute the conditional switching method described in claim 8 or 9.

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