WO2018152673A1

WO2018152673A1 - Cell handover method, and terminal

Info

Publication number: WO2018152673A1
Application number: PCT/CN2017/074242
Authority: WO
Inventors: 刘建华
Original assignee: 广东欧珀移动通信有限公司
Priority date: 2017-02-21
Filing date: 2017-02-21
Publication date: 2018-08-30
Also published as: CN109644379A

Abstract

Disclosed are a cell handover method and a terminal. The method comprises: a terminal obtaining a measurement result for a cell handover in the current discontinuous reception (DRX) cycle, and when it is determined that the measurement result is less than a first pre-set threshold, determining the duration of a DRX cycle corresponding to the measurement result according to a parameter range to which the measurement result belongs and a mapping relationship between a pre-set parameter range and the duration of the DRX cycle, and updating the duration of the current DRX cycle according to the duration of the DRX cycle; and when it is determined that the measurement result is greater than or equal to the first pre-set threshold, the terminal performing a cell handover operation. The embodiments of the present invention are advantageous for reducing a time delay when a terminal performs a cell handover and improving the cell handover efficiency.

Description

Cell switching method and terminal

Technical field

The present invention relates to the field of communications technologies, and in particular, to a cell handover method and a terminal.

Background technique

In a wireless communication system, in order to save power consumption of a terminal, a DRX (Discontinuous Reception) mechanism is usually adopted. The DRX mechanism is a receiving mechanism adopted by the Long Term Evolution (LTE) system to reduce the power consumption of the terminal. It introduces a periodic opening and closing mechanism of a radio frequency (RF) module to enable the radio frequency module to be in an on or off state, thereby periodically monitoring a physical downlink control channel (PDCCH), which is unnecessary. The PDCCH is continuously monitored to achieve the purpose of reducing UE power consumption.

FIG. 1 is a schematic diagram of a principle of a DRX mechanism in a prior art LTE system. The On Duration (continuous listening period) indicates a time period during which the terminal monitors the PDCCH channel, in which the radio channel of the UE is turned on and continuously monitors the PDCCH; except for the time other than the On Duration, the UE radio module is turned off. To achieve the purpose of saving electricity. The On Duration is periodically generated, and the specific period is implemented by an eNB (evolved Node B) configuration. While the terminal is saving power, in order to avoid excessive communication delay between the eNB and the terminal, the concepts of long cycle and short cycle are introduced. On a short period, On duration occurs more frequently than a long period. While configuring the long period, you can choose to configure the short period to shorten the time that the terminal listens to the control channel and reduce the data transmission delay. In order to implement the DRX mechanism, the LTE system has designed a variety of timers, and combined with the HARQ (Hybrid Automatic Repeat Request) process, the operation process under the DRX mechanism is given. The related timers include: 1. Inactive Timer Inactivity Timer: When the terminal receives the control signaling of the initial transmission of HARQ during the On duration, the timer is turned on, and the terminal continuously monitors the control channel before the timer expires. If the terminal receives the control signaling of the initial transmission of HARQ before the Inactivity Timer expires, it will terminate and restart. Start the Inactivity Timer. 2. Round trip timer RTT Timer: Only applicable to DL (downstream). The terminal will turn on this timer if it receives control signaling for HARQ retransmission. If the data in the corresponding HARQ process is still unsuccessfully decoded after the previous HARQ transmission, after the RTT Timer timer expires, the terminal turns on the retransmission timer Retransmission Timer. If the data in the corresponding HARQ process is successfully decoded after the previous HARQ transmission, the terminal does not start the Retransmission Timer after the RTT Timer timer expires. 3. Retransmission Timer: During the retransmission timer, the terminal listens to the control channel and waits for retransmission of the corresponding HARQ process.

As shown in FIG. 2, it is the action process of each timer in the prior art DRX mechanism. First, the On duration Timer is turned on. During the On duration Timer operation, the eNB schedules the DL initial transmission at time t1, so the Inactivity Timer starts and the HARQ RTT Timer is turned on. At the time t2, the Inactivity Timer first times out. At time t3, the HARQ RTT Timer times out. At this time, since the initial transmission is not successful at time t1 (the terminal feedback denies the acknowledgement NACK), the Retransmission Timer is started. At time t4, the eNB schedules the first retransmission, so the Retransmission Timer is stopped and the RTT Timer is started. At time t6, the RTT Timer times out, and the first retransmission at time t4 is still unsuccessful (the terminal feeds back NACK), so the Retransmission Timer starts. At time t7, the eNB schedules a second retransmission, the Retransmission Timer is stopped, and the RTT Timer is started. Since the second retransmission is successful (the terminal feedback acknowledges the ACK), the Retransmission Timer will not be started after the RTT Timer expires.

As shown in FIG. 3, in a process in which a terminal is switched from a serving cell to a target cell, the terminal acquires measurement data in each DRX cycle (here, a long cycle long cycle is taken as an example), and according to measurement data (for example, reference signal received power) The measurement result of the (Reference Signal Receiving Power, RSRP) is compared with a preset threshold to determine whether the condition of the cell handover is met. When the condition of the cell handover is met, the terminal completes the cell handover, and the DRX mechanism of the terminal is configured with a fixed The measurement result of the non-On Duration period in the DRX cycle may be a value that is relatively larger than the preset threshold, which obviously causes an extra delay for the cell handover. The efficiency of the terminal to perform cell handover.

Summary of the invention

The embodiments of the present invention provide a cell handover method and a terminal, so as to reduce the delay when the terminal performs cell handover, and improve the cell handover efficiency.

In a first aspect, an embodiment of the present invention provides a cell handover method, including:

The terminal acquires the measurement result for the cell handover in the current discontinuous reception DRX cycle, and determines that the measurement result is smaller than the first preset threshold, according to the parameter range to which the measurement result belongs, and the preset parameter range and the DRX. Determining the duration of the DRX period corresponding to the measurement result, and updating the duration of the current DRX period according to the duration of the DRX period, where the first parameter range in the mapping relationship corresponds The first DRX period is greater than the second DRX period duration corresponding to the second parameter range, the maximum value of the first parameter range is smaller than the minimum value of the second parameter range, and the DRX period in the mapping relationship is smaller than the terminal Short cycle of DRX;

When the terminal determines that the measurement result is greater than or equal to the first preset threshold, the terminal performs a cell handover operation.

It can be seen that, in the embodiment of the present invention, the terminal dynamically adjusts the DRX period according to the measurement result used for the cell handover, and because the preset mapping relationship, the duration of the DRX cycle decreases as the measurement range to which the measurement result belongs increases. Therefore, in the process that the measurement result is gradually increased until it is greater than or equal to the first preset threshold, the DRX cycle is shorter and shorter, so that the difference between the finally detected measurement result satisfying the switching condition and the first preset threshold is obtained. The value will be as small as possible, that is, the total handover waiting delay will be reduced as much as possible, which is beneficial to reduce the delay of the terminal when performing cell handover and improve the cell handover efficiency.

In a possible design, the terminal acquires measurement results for cell handover in the current discontinuous reception DRX cycle, including:

Obtaining, by the terminal, the first measurement data of the serving cell and the second measurement data of the neighboring cell in the current DRX cycle;

The terminal determines a measurement result for cell handover according to the first measurement data and the second measurement data.

In a possible design, the terminal acquires the first measurement data of the serving cell and the second measurement data of the neighboring cell in the current DRX cycle, including:

Receiving, by the terminal, the first high layer signaling that is sent by the network side device, where the first high layer signaling includes the first measurement data of the serving cell and the second measurement data of the neighboring cell; or

The terminal receives the preset dynamic signaling sent by the network side device by using the control channel, where the preset dynamic signaling includes the first measurement data of the serving cell and the second measurement data of the neighboring cell.

In one possible design, the first measurement data and the second measurement data include any one of the following:

a reference signal received power RSRP, a Received Signal Strength Indication (RSSI), a Reference Signal Receiving Quality (RSRQ), and a quality of service of the neighboring cell is higher than a quality of service of the serving cell. Offset value A3Offset.

In one possible design, the method further includes:

The terminal receives the second high layer signaling sent by the network side device, where the second high layer signaling includes the mapping relationship.

In one possible design, the method further includes:

When it is determined that the measurement result is less than the first preset threshold, and the measurement result is greater than or equal to the second preset threshold, continuously maintaining the continuous listening period On Duration of the current DRX cycle, updating the measurement As a result, the cell switching operation is performed until the measurement result is greater than or equal to the first preset threshold, and the second preset threshold is smaller than the first preset threshold.

It can be seen that, in the design, when the terminal detects that the measurement result is greater than or equal to the second preset threshold and is less than the first preset threshold, the terminal continuously turns on the On Duration and updates the measurement result until the measurement result is greater than or equal to the first preset threshold. Therefore, the delay effect of the non-On Duration period of the DRX cycle is avoided, and the switching efficiency of the terminal is improved.

In one possible design, the method further includes:

After detecting that the cell handover operation is completed, the terminal switches the DRX mechanism of the terminal to a preset DRX mechanism, where the preset DRX mechanism includes a DRX long cycle and a DRX short cycle.

In a second aspect, an embodiment of the present invention provides a terminal, where the terminal has a function of implementing a behavior of a terminal in the foregoing method design. The functions may be implemented by hardware or by corresponding software implemented by hardware. The hardware or software includes one or more modules corresponding to the functions described above.

In one possible design, the terminal includes a processor configured to support terminal execution The corresponding functions in the above methods are performed. Further, the terminal may further include a transceiver for supporting communication between the terminal and the network side device. Further, the terminal may further include a memory for coupling with the processor, which stores program instructions and data necessary for the terminal.

In a third aspect, an embodiment of the present invention provides a computer readable storage medium, where the computer readable storage medium stores instructions that, when run on a computer, cause the computer to perform the method described in the first aspect above.

In a fourth aspect, an embodiment of the present invention provides a computer program product comprising instructions that, when run on a computer, cause the computer to perform the method described in the first aspect above.

DRAWINGS

The drawings used in the examples or the description of the prior art will be briefly described below.

1 is an exemplary diagram of long periods and short periods in an existing DRX mechanism;

2 is a schematic diagram of a timer function of an existing DRX mechanism;

3 is a schematic diagram of a process in which a terminal performs cell handover in an existing DRX mechanism;

FIG. 4 is a schematic diagram of a possible network architecture provided by an embodiment of the present invention; FIG.

FIG. 5 is a schematic flowchart of a cell handover method according to an embodiment of the present invention;

FIG. 6 is a schematic diagram of a process of an example cell handover method according to an embodiment of the present invention; FIG.

FIG. 6B is a schematic flowchart of another example cell handover method according to an embodiment of the present disclosure;

7A is a schematic structural diagram of a terminal according to an embodiment of the present invention;

FIG. 7B is a schematic structural diagram of another terminal according to an embodiment of the present disclosure;

FIG. 8 is a schematic structural diagram of another terminal according to an embodiment of the present invention.

detailed description

The technical solutions in the embodiments of the present invention will be described below with reference to the accompanying drawings.

Referring to FIG. 4, FIG. 4 is a possible network architecture provided by an embodiment of the present invention. The network architecture includes a network side device and a terminal. When the terminal accesses the mobile communication network provided by the network side device, the terminal and the network side device can communicate through the wireless link. The network side device may be, for example, a base station in a 5th Generation (5th Generation, 5G) mobile communication network. In the embodiments of the present invention, the terms "network" and "system" are often used interchangeably, and those skilled in the art can understand the meaning thereof. The terminal involved in the embodiments of the present invention may include various handheld devices, in-vehicle devices, wearable devices, computing devices, or other processing devices connected to the wireless modem, and various forms of user equipment (User Equipment). , UE), mobile station (MS), terminal device, and the like. For convenience of description, the devices mentioned above are collectively referred to as terminals.

In addition, the discontinuous reception DRX mechanism described in the embodiment of the present invention refers to the DRX mechanism (DRX in RRC_CONNECTED) in the RRC (Radio Resource Control) connection state.

Referring to FIG. 5, FIG. 5 is a cell handover method according to an embodiment of the present invention, which is applied to a mobile communication network including a network side device and a terminal, where the network side device is in communication connection with the terminal, and the method includes: 501 Part and section 502, as follows:

In 501, the terminal obtains a measurement result for the cell handover in the current discontinuous reception DRX cycle, and when determining that the measurement result is less than the first preset threshold, the parameter ranges according to the measurement result, and a preset parameter. The mapping between the range and the duration of the DRX cycle, determining the duration of the DRX cycle corresponding to the measurement result, and updating the duration of the current DRX cycle according to the duration of the DRX cycle, the first parameter in the mapping relationship The first DRX period corresponding to the range is greater than the second DRX period duration corresponding to the second parameter range, the maximum value of the first parameter range is smaller than the minimum value of the second parameter range, and the DRX period in the mapping relationship is smaller than The terminal The short cycle of DRX.

The terminal may specifically obtain the measurement result for the cell handover during the continuous listening period On Duration of the current discontinuous reception DRX cycle.

In 502, the terminal performs a cell handover operation when determining that the measurement result is greater than or equal to the first preset threshold.

It can be seen that, in the embodiment of the present invention, the terminal dynamically adjusts the DRX period according to the measurement result used for the cell handover. In the preset mapping relationship, the duration of the DRX cycle decreases as the measurement range to which the measurement result belongs increases. Therefore, in the process that the measurement result is gradually increased until it is greater than or equal to the first preset threshold, the DRX cycle is shorter and shorter, so that the finally detected measurement result satisfying the switching condition is between the first preset threshold and the first preset threshold. The difference is as small as possible, that is, the total handover waiting delay is reduced as much as possible, which is beneficial to reduce the delay when the terminal performs cell handover and improve the cell handover efficiency.

In a possible example, the terminal acquires measurement results for cell handover in the current discontinuous reception DRX cycle, including:

The measurement result may specifically be a value obtained by subtracting the first measurement data from the second measurement data.

In a possible example, the terminal acquires the first measurement data of the serving cell and the second measurement data of the neighboring cell in the current DRX cycle, including:

In one possible example, the first measurement data and the second measurement data include any one of the following:

Reference signal received power RSRP, received signal strength indicator RSSI, reference signal reception quality The RSRQ and the quality of service of the neighboring cell are higher than the offset value A3Offset of the quality of service of the serving cell.

In one possible example, the method further includes:

It can be seen that, in this example, when the terminal detects that the measurement result is greater than or equal to the second preset threshold and is less than the first preset threshold, the terminal continuously turns on the On Duration and updates the measurement result until the measurement result is greater than or equal to the first preset threshold. Therefore, the delay effect of the non-On Duration period of the DRX cycle is avoided, and the switching efficiency of the terminal is improved.

In one possible example, the method further includes:

The preset DRX mechanism is a DRX mechanism in an existing LTE network, and details are not described herein again.

The embodiments of the present invention are further described below in conjunction with specific application scenarios. As shown in FIG. 6A, it is assumed that the preset mapping relationship includes a mapping relationship between a duration of the first DRX cycle and the first parameter range, a mapping between a duration of the second DRX cycle and a second parameter range, and a third The mapping between the duration of the DRX cycle and the third parameter range and the mapping between the duration of the fourth DRX cycle and the fourth parameter range, and the terminal is initially in the long-period long DRX cycle of the preset DRX mechanism.

After the terminal determines that the cell switching operation is required, the first measurement result is obtained during the On Duration of the current DRX long period, and when the first measurement result is smaller than the first preset threshold, the first parameter belongs to the first measurement result. a range, and a preset mapping relationship, determining a DRX period corresponding to the first measurement result as a duration of the first DRX period, and updating the DRX according to the duration of the first DRX period Long cycle.

Next, after detecting that the DRX long period ends, the terminal switches to the first DRX cycle, and acquires the second measurement result during the On Duration of the first DRX cycle, and determines that the second measurement result is smaller than the first And determining, according to the second parameter range to which the second measurement result belongs, and the preset mapping relationship, the DRX period corresponding to the second measurement result is the duration of the second DRX cycle, and is updated according to the duration of the second DRX cycle. The first DRX cycle.

Next, after detecting that the first DRX cycle ends, the terminal switches to the second DRX cycle, and acquires a third measurement result during the On Duration of the second DRX cycle, and determines that the first measurement result is smaller than Determining, according to the third parameter range to which the third measurement result belongs, and the preset mapping relationship, the DRX period corresponding to the third measurement result is the duration of the third DRX cycle, and according to the third DRX cycle, The duration updates the second DRX cycle.

Next, after detecting that the second DRX cycle ends, the terminal switches to the third DRX cycle, and acquires the fourth measurement result during the On Duration of the third DRX cycle, and determines that the fourth measurement result is greater than When the first preset threshold is used, a cell handover operation is performed.

As shown in FIG. 6B, it is assumed that the preset mapping relationship includes a mapping relationship between a duration of the first DRX cycle and the first parameter range, a mapping between a duration of the second DRX cycle and a second parameter range, and a third The mapping between the duration of the DRX cycle and the third parameter range and the mapping between the duration of the fourth DRX cycle and the fourth parameter range, and the terminal is initially in the long-period long DRX cycle of the preset DRX mechanism.

After the terminal determines that the cell switching operation is required, the first measurement result is obtained during the On Duration of the current DRX long period, and when the first measurement result is less than the second preset threshold, the first parameter belongs to the first measurement result. The range, and the preset mapping relationship, determine the DRX period corresponding to the first measurement result as the duration of the first DRX period, and update the DRX long period according to the duration of the first DRX period.

Then, after detecting that the DRX long period ends, the terminal switches to the first DRX cycle, and acquires the second measurement result during the On Duration of the first DRX cycle, and determines that the second measurement result is smaller than the second measurement result. When the threshold is preset, according to the second parameter range to which the second measurement result belongs, and The preset mapping relationship determines that the DRX period corresponding to the second measurement result is the duration of the second DRX cycle, and updates the first DRX cycle according to the duration of the second DRX cycle.

Next, after detecting that the first DRX cycle ends, the terminal switches to the second DRX cycle, and acquires a third measurement result during the On Duration of the second DRX cycle, and determines that the first measurement result is smaller than When the first preset threshold is greater than the second preset threshold, continuously maintaining the continuous listening period On Duration of the current DRX period, updating the third measurement result, and determining that the measurement result is equal to the first When the threshold is preset, the cell switching operation is performed.

The foregoing describes the solution of the embodiment of the present invention mainly from the perspective of interaction between the network elements. It can be understood that the terminal and the network side device include corresponding hardware structures and/or software modules for performing the respective functions in order to implement the above functions. Those skilled in the art will readily appreciate that the present invention can be implemented in a combination of hardware or hardware and computer software in combination with the elements and algorithm steps of the various examples described in the embodiments disclosed herein. Whether a function is implemented in hardware or computer software to drive hardware depends on the specific application and design constraints of the solution. A person skilled in the art can use different methods for implementing the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the present invention.

The embodiments of the present invention may perform the division of functional units on the terminal and the network side device according to the foregoing method. For example, each functional unit may be divided according to each function, or two or more functions may be integrated into one processing unit. The above integrated unit can be implemented in the form of hardware or in the form of a software functional unit. It should be noted that the division of the unit in the embodiment of the present invention is schematic, and is only a logical function division, and the actual implementation may have another division manner.

In the case of employing an integrated unit, FIG. 7A shows a possible structural diagram of the terminal involved in the above embodiment. The terminal 700 includes a processing unit 702 and a communication unit 703. The processing unit 702 is configured to control and manage the actions of the terminal. For example, the processing unit 702 is configured to support the terminal to perform

steps

501 and 502 in FIG. 5 and/or other processes for the techniques described herein. The communication unit 703 is for supporting communication between the terminal and other devices, such as communication with the network side device shown in FIG. The terminal may further include a storage unit 701 for storing program codes and data of the terminal.

The processing unit 702 can be a processor or a controller, and can be, for example, a central processing unit (CPU), a general-purpose processor, a digital signal processor (DSP), and an application-specific integrated circuit (Application-Specific). Integrated Circuit (ASIC), Field Programmable Gate Array (FPGA) or other programmable logic device, transistor logic device, hardware component, or any combination thereof. It is possible to implement or carry out the various illustrative logical blocks, modules and circuits described in connection with the present disclosure. The processor may also be a combination of computing functions, for example, including one or more microprocessor combinations, a combination of a DSP and a microprocessor, and the like. The communication unit 703 may be a transceiver, a transceiver circuit, or the like, and the storage unit 701 may be a memory.

The processing unit 702 is configured to acquire, by using the communication unit 703, a measurement result for cell handover in a current discontinuous reception DRX cycle, and when determining that the measurement result is less than a first preset threshold, according to the The parameter range to which the measurement result belongs, and the mapping relationship between the preset parameter range and the duration of the DRX cycle, determining the duration of the DRX cycle corresponding to the measurement result, and updating the current DRX cycle according to the duration of the DRX cycle The first DRX period corresponding to the first parameter range in the mapping relationship is greater than the second DRX period duration corresponding to the second parameter range, and the maximum value of the first parameter range is smaller than the minimum of the second parameter range. a value, and the DRX period in the mapping relationship is smaller than a DRX short period of the terminal; and is configured to perform a cell switching operation when determining that the measurement result is greater than or equal to the first preset threshold.

In one possible example, the processing unit 702 is specifically configured to: acquire, by using the communication unit 703, the first measurement data of the serving cell and the second measurement data of the neighboring cell in the current DRX cycle; And determining a measurement result for the cell handover according to the first measurement data and the second measurement data.

In one possible example, the processing unit 702 is specifically configured to:

Receiving, by the communication unit 703, the first high layer signaling that is sent by the network side device, where the first high layer signaling includes the first measurement data of the serving cell and the second measurement data of the neighboring cell; or

Receiving, by the communication unit 703, preset dynamic signaling sent by the network side device by using a control channel, where the preset dynamic signaling includes the first measurement data of the serving cell and the first cell of the neighboring cell Two measurement data.

The reference signal received power RSRP, the received signal strength indicator RSSI, the reference signal received quality RSRQ, and the offset value A3Offset of the quality of service of the neighboring cell is higher than the quality of service of the serving cell.

In a possible example, the processing unit 702 is further configured to: receive, by the communication unit 703, second high layer signaling that is sent by the network side device, where the second high layer signaling includes the mapping relationship.

In one possible example, the processing unit 702 is further configured to: continuously open when the measurement result is less than a first preset threshold, and the measurement result is greater than or equal to a second preset threshold The continuous monitoring period On Duration of the current DRX period, the measurement result is updated until the measurement result is greater than or equal to the first preset threshold, and the cell switching operation is performed, where the second preset threshold is smaller than the The first preset threshold is described.

In a possible example, the processing unit 702 is further configured to: after detecting that the cell handover operation is completed, switch the DRX mechanism of the terminal to a preset DRX mechanism, where the preset DRX mechanism includes a DRX length. Cycle and DRX short cycle.

When the processing unit 702 is a processor, the communication unit 703 is a communication interface, and the storage unit 701 is a memory, the terminal involved in the embodiment of the present invention may be the terminal shown in FIG. 7B.

Referring to FIG. 7B, the terminal 710 includes a processor 712, a communication interface 713, and a memory 711. Optionally, the terminal 710 may further include a bus 714. The communication interface 713, the processor 712, and the memory 711 may be connected to each other through a bus 714. The bus 714 may be a Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (abbreviated). EISA) bus and so on. The bus 714 can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in Figure 7B, but it does not mean that there is only one bus or one type of bus.

The terminal shown in FIG. 7A or FIG. 7B can also be understood as a device for a terminal, which is not limited in the embodiment of the present invention.

The embodiment of the present invention further provides another terminal. As shown in FIG. 8 , for the convenience of description, only parts related to the embodiment of the present invention are shown. If the specific technical details are not disclosed, please refer to the method part of the embodiment of the present invention. . The terminal may be any terminal device including a mobile phone, a tablet computer, a PDA (Personal Digital Assistant), a POS (Point of Sales), an in-vehicle computer, and the terminal is a mobile phone as an example:

FIG. 8 is a block diagram showing a partial structure of a mobile phone related to a terminal provided by an embodiment of the present invention. Referring to FIG. 8 , the mobile phone includes: a radio frequency (RF) circuit 810 , a memory 820 , an input unit 830 , a display unit 840 , a sensor 850 , an audio circuit 860 , a wireless fidelity (WiFi) module 870 , and a processor 880 . And power supply 890 and other components. It will be understood by those skilled in the art that the structure of the handset shown in FIG. 8 does not constitute a limitation to the handset, and may include more or less components than those illustrated, or some components may be combined, or different component arrangements.

The following describes the components of the mobile phone in detail with reference to FIG. 8:

The RF circuit 810 can be used for receiving and transmitting information. Generally, RF circuit 810 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a Low Noise Amplifier (LNA), a duplexer, and the like. In addition, RF circuitry 810 can also communicate with the network and other devices via wireless communication. The above wireless communication may use any communication standard or protocol, including but not limited to Global System of Mobile communication (GSM), General Packet Radio Service (GPRS), Code Division Multiple Access (Code Division). Multiple Access (CDMA), Wideband Code Division Multiple Access (WCDMA), Long Term Evolution (LTE), E-mail, Short Messaging Service (SMS), and the like.

The memory 820 can be used to store software programs and modules, and the processor 880 executes various functional applications and data processing of the mobile phone by running software programs and modules stored in the memory 820. The memory 820 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application required for at least one function, and the like; the storage data area may store data created according to usage of the mobile phone, and the like. Moreover, memory 820 can include high speed random access memory, and can also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.

The input unit 830 can be configured to receive input numeric or character information and to generate key signal inputs related to user settings and function controls of the handset. Specifically, the input unit 830 can include a fingerprint recognition module 831 and other input devices 832. The fingerprint identification module 831 can collect fingerprint data of the user. In addition to the fingerprint recognition module 831, the input unit 830 can also include other input devices 832. Specifically, other input devices 832 may include, but are not limited to, one or more of a touch screen, a physical keyboard, function keys (such as volume control buttons, switch buttons, etc.), trackballs, mice, joysticks, and the like.

The display unit 840 can be used to display information input by the user or information provided to the user as well as various menus of the mobile phone. The display unit 840 can include a display screen 841. Alternatively, the display screen 841 can be configured in the form of a liquid crystal display (LCD), an organic light-emitting diode (OLED), or the like. Although in FIG. 8, the fingerprint recognition module 831 and the display screen 841 function as two separate components to implement the input and input functions of the mobile phone, in some embodiments, the fingerprint recognition module 831 and the display screen 841 can be implemented. Integrated to achieve the input and playback functions of the phone.

The handset can also include at least one type of sensor 850, such as a light sensor, motion sensor, and other sensors. Specifically, the light sensor may include an ambient light sensor and a proximity sensor, wherein the ambient light sensor may adjust the brightness of the display screen 841 according to the brightness of the ambient light, and the proximity sensor may turn off the display screen 841 and/or when the mobile phone moves to the ear. Or backlight. As a kind of motion sensor, the accelerometer sensor can detect the magnitude of acceleration in all directions (usually three axes). When it is stationary, it can detect the magnitude and direction of gravity. It can be used to identify the gesture of the mobile phone (such as horizontal and vertical screen switching, related Game, magnetometer attitude calibration), vibration recognition related functions (such as pedometer, tapping), etc.; as for the mobile phone can also be configured with gyroscopes, barometers, hygrometers, thermometers, infrared sensors and other sensors, no longer Narration.

An audio circuit 860, a speaker 861, and a microphone 862 can provide an audio interface between the user and the handset. The audio circuit 860 can transmit the converted electrical data of the received audio data to the speaker 861 for conversion to the sound signal by the speaker 861; on the other hand, the microphone 862 converts the collected sound signal into an electrical signal by the audio circuit 860. After receiving, it is converted into audio data, and then processed by the audio data playing processor 880, sent to the other mobile phone via the RF circuit 810, or played to the memory 820 for further processing.

WiFi is a short-range wireless transmission technology, and the mobile phone can help users to send and receive emails, browse web pages, and access streaming media through the WiFi module 870, which provides users with wireless broadband Internet access. Although FIG. 8 shows the WiFi module 870, it can be understood that it does not belong to the essential configuration of the mobile phone, and can be omitted as needed within the scope of not changing the essence of the invention.

The processor 880 is the control center of the handset, and connects various portions of the entire handset using various interfaces and lines, by executing or executing software programs and/or modules stored in the memory 820, and invoking data stored in the memory 820, executing The phone's various functions and processing data, so that the overall monitoring of the phone. Optionally, the processor 880 may include one or more processing units; preferably, the processor 880 may integrate an application processor and a modem processor, where the application processor mainly processes an operating system, a user interface, an application, and the like. The modem processor primarily handles wireless communications. It will be appreciated that the above described modem processor may also not be integrated into the processor 880.

The handset also includes a power source 890 (such as a battery) that supplies power to the various components. Preferably, the power source can be logically coupled to the processor 880 through a power management system to manage functions such as charging, discharging, and power management through the power management system.

Although not shown, the mobile phone may further include a camera, a Bluetooth module, and the like, and details are not described herein again.

In the foregoing embodiment shown in FIG. 5, the process on the terminal side in each step method may be implemented based on the structure of the mobile phone.

In the foregoing embodiment shown in FIGS. 7A and 7B, each unit function can be implemented based on the structure of the mobile phone.

The steps of the method or algorithm described in the embodiments of the present invention may be implemented in a hardware manner, or may be implemented by a processor executing software instructions. The software instructions may be composed of corresponding software modules, which may be stored in a random access memory (RAM), a flash memory, a read only memory (ROM), an erasable programmable read only memory ( Erasable Programmable ROM (EPROM), electrically erasable programmable read only memory (EEPROM), registers, hard disk, removable hard disk, compact disk read only (CD-ROM) or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor such that the processor can read information from the storage medium and can The storage medium writes information. Of course, the storage medium can also be an integral part of the processor. The processor and the storage medium can be located in an ASIC. Additionally, the ASIC can be located in an access network device, a target network device, or a core network device. Of course, the processor and the storage medium may also exist as discrete components in the access network device, the target network device, or the core network device.

Those skilled in the art should appreciate that in one or more of the above examples, the functions described in the embodiments of the present invention may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, it may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the processes or functions described in accordance with embodiments of the present invention are generated in whole or in part. The computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer readable storage medium or transferred from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions can be from a website site, computer, server or data center Transmission to another website site, computer, server, or data center by wire (eg, coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (eg, infrared, wireless, microwave, etc.). The computer readable storage medium can be any available media that can be accessed by a computer or a data storage device such as a server, data center, or the like that includes one or more available media. The usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium (for example, a digital video disc (DVD)), or a semiconductor medium (for example, a solid state disk (SSD)). )Wait.

The specific embodiments of the present invention have been described in detail with reference to the embodiments of the embodiments of the present invention. The scope of the present invention is defined by the scope of the present invention. Any modifications, equivalents, improvements, etc., which are included in the embodiments of the present invention, are included in the scope of the present invention.

Claims

A cell switching method, comprising:

The terminal acquires the measurement result for the cell handover in the current discontinuous reception DRX cycle, and determines that the measurement result is smaller than the first preset threshold, according to the parameter range to which the measurement result belongs, and the preset parameter range and the DRX. Determining the duration of the DRX period corresponding to the measurement result, and updating the duration of the current DRX period according to the duration of the DRX period, where the first parameter range in the mapping relationship corresponds The first DRX period is greater than the second DRX period duration corresponding to the second parameter range, the maximum value of the first parameter range is smaller than the minimum value of the second parameter range, and the DRX period in the mapping relationship is smaller than the terminal Short cycle of DRX;

When the terminal determines that the measurement result is greater than or equal to the first preset threshold, the terminal performs a cell handover operation.
The method according to claim 1, wherein the terminal acquires measurement results for cell handover in the current discontinuous reception DRX cycle, including:

Obtaining, by the terminal, the first measurement data of the serving cell and the second measurement data of the neighboring cell in the current DRX cycle;

The terminal determines a measurement result for cell handover according to the first measurement data and the second measurement data.
The method according to claim 2, wherein the acquiring, by the terminal, the first measurement data of the serving cell and the second measurement data of the neighboring cell in the current DRX cycle, the method includes:

Receiving, by the terminal, the first high layer signaling that is sent by the network side device, where the first high layer signaling includes the first measurement data of the serving cell and the second measurement data of the neighboring cell; or

The terminal receives the preset dynamic signaling sent by the network side device by using the control channel, where the preset dynamic signaling includes the first measurement data of the serving cell and the second measurement data of the neighboring cell.
The method according to claim 2 or 3, wherein the first measurement data and the second measurement data comprise any one of the following:

a reference signal received power RSRP, a received signal strength indication RSSI, a reference signal received quality RSRQ, and an offset value of a quality of service of the neighboring cell that is higher than a quality of service of the serving cell A3 Offset.
The method according to any one of claims 1 to 4, wherein the method further comprises:

The terminal receives the second high layer signaling sent by the network side device, where the second high layer signaling includes the mapping relationship.
The method according to any one of claims 1 to 5, wherein the method further comprises:

When it is determined that the measurement result is less than the first preset threshold, and the measurement result is greater than or equal to the second preset threshold, continuously maintaining the continuous listening period On Duration of the current DRX cycle, updating the measurement As a result, the cell switching operation is performed until the measurement result is greater than or equal to the first preset threshold, and the second preset threshold is smaller than the first preset threshold.
The method according to any one of claims 1 to 6, wherein the method further comprises:

After detecting that the cell handover operation is completed, the terminal switches the DRX mechanism of the terminal to a preset DRX mechanism, where the preset DRX mechanism includes a DRX long cycle and a DRX short cycle.
A terminal, comprising: a processing unit and a communication unit,

The processing unit is configured to acquire, by using the communication unit, a measurement result for cell handover in a current discontinuous reception DRX cycle, and when determining that the measurement result is less than a first preset threshold, according to a parameter to which the measurement result belongs a range, and a mapping relationship between the preset parameter range and the duration of the DRX cycle, determining a duration of the DRX cycle corresponding to the measurement result, and updating a duration of the current DRX cycle according to a duration of the DRX cycle, The first DRX period corresponding to the first parameter range in the mapping relationship is greater than the second DRX period duration corresponding to the second parameter range, the maximum value of the first parameter range is smaller than the minimum value of the second parameter range, and the The DRX period in the mapping relationship is smaller than the DRX short period of the terminal; and is configured to perform a cell switching operation when it is determined that the measurement result is greater than or equal to the first preset threshold.
The terminal according to claim 8, wherein the processing unit is configured to: acquire, by the communication unit, first measurement data of the serving cell and a first cell of the neighboring cell in the current DRX cycle. And measuring data for determining a cell handover according to the first measurement data and the second measurement data.
The terminal according to claim 9, wherein the processing unit is specifically configured to:

Receiving, by the communication unit, the first high layer signaling sent by the network side device, where the first high layer signaling includes the first measurement data of the serving cell and the second measurement data of the neighboring cell; or

And receiving, by the communication unit, preset dynamic signaling sent by the network side device by using a control channel, where the preset dynamic signaling includes first measurement data of the serving cell and second measurement data of the neighboring cell.
The terminal according to claim 9 or 10, wherein the first measurement data and the second measurement data comprise any one of the following:

The reference signal received power RSRP, the received signal strength indication RSSI, the reference signal received quality RSRQ, and the offset value A3 Offset of the quality of service of the neighboring cell is higher than the quality of service of the serving cell.
The terminal according to any one of claims 8 to 11, wherein the processing unit is further configured to: receive, by the communication unit, second higher layer signaling that is sent by the network side device, where the second higher layer signaling is The mapping relationship is included.
The terminal according to any one of claims 8 to 12, wherein the processing unit is further configured to: determine that the measurement result is smaller than a first preset threshold, and the measurement result is greater than or equal to When the second preset threshold is used, the continuous listening period On Duration of the current DRX period is continuously turned on, and the measurement result is updated until it is determined that the measurement result is greater than or equal to the first preset threshold, and the cell switching operation is performed. The second preset threshold is smaller than the first preset threshold.
The terminal according to any one of claims 8 to 13, wherein the processing unit is further configured to: after detecting that the cell handover operation is completed, switch the DRX mechanism of the terminal to a preset DRX mechanism, The preset DRX mechanism includes a DRX long period and a DRX short period.
A terminal, comprising: a processor, a memory, and a transceiver, wherein the processor is communicatively coupled to the memory and the transceiver;

The memory stores program code and data, and the processor is configured to invoke the program code and the data in the memory to perform the method of any one of claims 1-7.