CN112399497A

CN112399497A - Communication method and communication device

Info

Publication number: CN112399497A
Application number: CN201910755808.3A
Authority: CN
Inventors: 耿婷婷; 严乐; 张宏平
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2019-08-15
Filing date: 2019-08-15
Publication date: 2021-02-23
Also published as: WO2021027907A1

Abstract

The application provides a communication method and a communication device, which are beneficial to reducing air interface overhead. The method comprises the following steps: the terminal device receives a message from the target access network device indicating whether to perform a measurement based on at least part of the parameters in the first measurement configuration. The first measurement configuration is from a source access network device, and the first measurement configuration includes parameters for a terminal device to measure. When the message indicates that the measurement may continue based on at least part of the parameters in the first measurement configuration, the terminal device may continue to measure based on at least part of the parameters in the first measurement configuration. Thus, the target access network device may send no or only a small number of additional parameters. Air interface overhead may be reduced.

Description

Communication method and communication device

Technical Field

The present application relates to the field of communications, and more particularly, to a communication method and a communication apparatus.

Background

An inactive state is a Radio Resource Control (RRC) state introduced in a New Radio (NR) system. The access network device may configure the terminal device to enter a deactivation dynamic state through signaling. A terminal device entering a deactivation dynamic state may disconnect the RRC connection with the access network.

In order to quickly configure a terminal device with Carrier Aggregation (CA) or Dual Connectivity (DC), a deactivated dynamic terminal device may perform measurements before accessing the network, such as measurements before the deactivated dynamic terminal device enters a connected state. Since this measurement behavior is a measurement behavior before accessing the network, it may be referred to as early measurement. The access network device may configure the terminal device with parameters for measurement before the terminal device enters the deactivation dynamic state, so as to facilitate the terminal device to perform early measurement.

However, due to the mobility of the terminal device, the terminal device in the deactivation dynamic state may move from one cell (for example, referred to as cell a) to another cell (for example, referred to as cell B). Cell a and cell B may not be co-sited cells. The access network device to which cell B belongs may configure the terminal device with new parameters for early measurements. If the terminal device frequently moves between multiple cells, the air interface overhead due to early measurement configuration may be very large.

Disclosure of Invention

The application provides a communication method and a communication device, aiming to reduce signaling overhead brought to an air interface by parameter configuration of early measurement.

In a first aspect, a method of communication is provided. The communication method may be performed by the terminal device, for example, or may be performed by a component (such as a circuit or a chip) in the terminal device. This is not a limitation of the present application.

Specifically, the communication method includes: and receiving a first message from the source access network equipment, wherein the first message indicates that the terminal equipment enters the deactivation dynamic state. The first message comprises a first measurement configuration, and the first measurement configuration comprises parameters used for the terminal equipment to dynamically measure in deactivation; according to the first message, entering deactivation dynamic state and carrying out measurement based on the first measurement configuration; sending a request for recovering Radio Resource Control (RRC) connection to a target access network device, and receiving a second message from the target access network device, wherein the second message is used for indicating the terminal device to enter a deactivated dynamic state or an idle state; according to the second message, measurements are made based on at least part of the parameters in the first measurement configuration.

The first measurement configuration is a parameter configured for the terminal device by the source access network device when the terminal device is configured to enter a deactivation dynamic state. In this embodiment, the terminal device may still maintain the parameters of the first measurement configuration when entering the coverage area of the target access network device. The target access network device may indicate whether the terminal device continues to use the parameters in the first measurement configuration via a second message. The terminal device may perform measurements based on at least part of the parameters in the first measurement configuration or not based on the parameters in the first measurement configuration according to the second message.

Based on the above scheme, the terminal device may retain the measurement configuration (e.g., the first measurement configuration) received from the source access network device during the process of moving from one cell (e.g., referred to as a source cell) to another cell (e.g., referred to as a target cell). The target access network device may indicate whether the terminal device may continue to use some or all of the parameters in the first measurement configuration. In the case that the terminal device may continue to use all the parameters in the first measurement configuration, the target access network device may not need to send the parameters for measurement to the terminal device through additional overhead of the air interface, but only need to instruct the terminal device to continue to perform measurement based on the parameters in the first measurement configuration through a small number of indicator bits. Under the condition that part of parameters in the first measurement configuration can be continuously used, the target access network device may also send additional parameters for measurement to the terminal device, without sending all configuration parameters to the terminal device, so that air interface overhead caused by configuration may also be reduced. Therefore, the access network device does not need to send the measurement configuration to the terminal device each time the configuration terminal device enters the deactivated dynamic state or the idle state, and the air interface overhead caused by frequent measurement configuration can be saved.

In this embodiment, the target access network device may explicitly or implicitly indicate, through the second message, whether the terminal device performs measurement based on at least part of the parameters in the first measurement configuration. Specifically, the second message may include one or more of the following: 1) an indication indicating whether to measure based on at least part of the parameters in the first measurement configuration; 2) a second measurement configuration; 3) a third measurement configuration; and 4) information indicating whether to restart the timer or to continue running the timer.

The second message may indicate, for example, through the one or more pieces of information, whether the terminal device performs measurement based on at least part of the parameters in the first measurement configuration. It should be understood that the four items of information listed above can be understood as information related to the measurement configuration in this second message. Other measurement configuration related information and/or information for other functions may also be included in the second message. This is not a limitation of the present application.

With reference to the first aspect, in some possible implementations of the first aspect, the second message includes information indicating whether to perform measurement based on a parameter in the first measurement configuration.

That is, the second message instructs the terminal device to perform measurements based on or not based on the parameters in the first measurement configuration by means of an explicit indication.

With reference to the first aspect, in some possible implementations of the first aspect, the second message includes information indicating to restart the timer or to continue running the timer; the timer is started based on the first measurement configuration, and the running time of the timer is the effective measurement time included in the first measurement configuration.

The second message includes information indicating whether to restart or continue running the timer, and may be used to implicitly indicate whether the terminal device performs measurement based on the parameters in the first measurement configuration. For example, the information indicates to restart or continue running the timer, that is, indicates to continue using the timer, which is equivalent to implicitly instructing the terminal device to perform measurement based on the parameter in the first measurement configuration; this information indicates that the timer is not restarted or not run on, i.e. indicates that the timer is not to be used, which is equivalent to implicitly indicating that the terminal device does not perform measurements based on the parameters in the first measurement configuration.

By carrying information indicating whether to restart or continue running the timer in the second message, the terminal device can directly determine whether to perform measurement based on the first measurement configuration according to the information. That is, the second access network device may no longer indicate, through additional indication information, whether to perform measurement based on the first measurement configuration, thereby saving air interface overhead.

Optionally, when the second message includes both the information indicating whether to measure based on the parameters in the first measurement configuration and the information indicating whether to restart or continue running the timer, it may be determined whether to measure based on at least part of the parameters in the first measurement configuration based on the former and whether to continue using the measurement valid time in the first measurement configuration based on the latter.

Optionally, the method further comprises: and restarting the timer or continuously running the timer according to the second message, and determining to stop measuring based on the first measurement configuration after the running duration of the timer is reached.

In the case that the second message indicates to restart the running timer, the terminal device may restart the timer according to the second message; or, in case that the second message indicates to continue running the timer, the terminal device may continue running the timer according to the second message. After the running time of the timer is reached, the first measurement configuration is no longer valid. The terminal device may stop measuring based on the first measurement configuration.

With reference to the first aspect, in some possible implementation manners of the first aspect, the second message includes a second measurement configuration, and the second measurement configuration includes parameters for the terminal device to perform measurement.

When the second measurement configuration is included in the second message, the second message can be used to implicitly instruct the terminal device to perform measurement based on the parameters in the second measurement configuration. Therefore, the second measurement configuration is included in the second message, which may be used to implicitly instruct the terminal device not to perform measurements based on the parameters in the first measurement configuration.

By carrying the second measurement configuration in the second message, the terminal device can acquire the second measurement configuration parameter and also know that measurement is no longer performed based on the first measurement configuration. That is, the second access network device may no longer indicate, through additional indication information, whether to perform measurement based on the first measurement configuration, thereby saving air interface overhead.

Optionally, the method further comprises: according to the second message, and based on the parameters in the second measurement configuration.

The terminal device may continue to perform measurement based on the first measurement configuration after receiving the second measurement configuration, and perform measurement based on the parameters in the second measurement configuration after completing the measurement based on the first measurement configuration; it is also possible to stop the measurement based on the first measurement configuration and to perform the measurement directly based on the parameter in the second measurement configuration. This is not a limitation of the present application. The behavior of the terminal device belongs to the internal implementation of the device, and may be determined by the terminal device itself or may be predefined by the protocol. This is not a limitation of the present application.

With reference to the first aspect, in some possible implementations of the first aspect, the second message includes a third measurement configuration, and the third measurement configuration includes additional parameters for the terminal device to perform measurement.

The third measurement configuration may be used for delta configuration by the terminal device. Additional parameters for the terminal device to perform measurements may be included in the third measurement configuration. The terminal device may perform delta configuration according to the first measurement configuration and the third measurement configuration received in advance, whereby more comprehensive measurement may be performed.

Since the third measurement configuration only needs to include additional parameters, and the originally reserved parameters of the terminal device do not need to be repeatedly sent, the air interface overhead can be saved compared with a set of complete measurement configurations.

Therefore, the access network device (for example, the source access network device or the target access network device) can reasonably determine according to the requirement. And if necessary, sending the parameters of the new configuration to the terminal equipment. And under the unnecessary condition, the measurement configuration is not sent, so that the unnecessary air interface overhead is avoided. Therefore, the overhead brought by the configuration parameters of the terminal equipment can be greatly reduced. Meanwhile, the measurement effect is considered, so that higher compromise efficiency between the overhead and the measurement effect is obtained.

When the third measurement configuration is included in the second message, the delta configuration may be implicitly indicated to the terminal device based on some or all of the parameters in the third measurement configuration and the first measurement configuration. That is, the second access network device may no longer indicate, through additional indication information, whether to perform measurement based on the first measurement configuration, thereby saving air interface overhead.

Optionally, the method further comprises: the measurement is performed based on at least part of the parameters in the first measurement configuration and the parameters in the third measurement configuration.

When the terminal device performs delta configuration based on the parameter in the first measurement configuration and the parameter in the third measurement configuration, if configuration of a certain parameter conflicts, for example, measurement valid time is included in both the first measurement configuration and the third measurement configuration, and values of the two configurations are different, the terminal device should preferentially use the parameter in the third measurement configuration. The parameters obtained after the delta configuration may thus comprise some or all of the parameters in the first measurement configuration and all of the parameters in the third measurement configuration.

With reference to the first aspect, in certain implementations of the first aspect, the second message is a message for releasing an RRC connection.

For example, the second message is an RRC release (RRC release) message, or an RRC connection release (RRC connection release) message.

That is, the second access network device also instructs the terminal device on what parameters to measure based on while configuring the terminal device to enter a deactivated dynamic state or an idle state.

In a second aspect, a method of communication is provided. The communication method may be performed by the target access network device, for example, or may be performed by a component (e.g., a circuit or chip) in the target access network device. This is not a limitation of the present application.

Specifically, the method comprises the following steps: acquiring a second message, where the second message is used for determining whether a terminal device performs measurement based on at least part of parameters in a first measurement configuration, the first measurement configuration is configured for the terminal device when a source access network device indicates that the terminal device enters a deactivation dynamic state, and the first measurement configuration includes parameters used for the terminal device to perform measurement in the deactivation dynamic state; and sending the second message to the terminal equipment.

In other words, the terminal device may determine from the second message whether to perform a measurement based on at least part of the parameters in the first measurement configuration. Wherein, the relevant description of the first measurement configuration refers to the relevant description in the first aspect, and is not repeated here for brevity.

In this embodiment of the present application, the second message may be generated by the target access network device itself, or may be received by the target access network device from the source access network device. This is not a limitation of the present application.

With reference to the second aspect, in some possible implementation manners of the second aspect, the obtaining the second message includes: the second message is generated based on the context of the terminal device received from the source access network device.

That is, the target access network device may obtain the context of the terminal device from the source access network device. Thus, the target access network device becomes a new source access network device for the terminal device. The new source access network device of the terminal device (i.e. the target access network device) may decide itself whether the terminal device needs to perform measurement based on the parameters in the first measurement configuration, and thus may generate the second message itself.

Optionally, the method further comprises: and receiving time information from the source access network equipment, wherein the time information is used for determining the duration of the terminal equipment continuing to measure based on the first measurement configuration.

The old source access network device (i.e., the source access network device) of the terminal device may further send time information to the new source access network device (i.e., the target access network device) to indicate a duration for which the terminal device continues to perform measurements based on the first measurement configuration. The duration for which the terminal device continues to measure based on the first measurement configuration is the remaining duration for which the first measurement configuration is in effect. In other words, when the duration for which the terminal continues to perform measurements based on the first measurement configuration is zero, the first measurement configuration is also disabled accordingly. The terminal device and the access network device storing the first measurement configuration may each delete the first measurement configuration once the first measurement configuration fails. For example, the target access network device that acquires the first measurement configuration may delete the first measurement configuration after the first measurement configuration fails. Accordingly, the terminal device may also delete the first measurement configuration after the first measurement configuration is invalid. The target access network equipment is used as new source access network equipment, and the first measurement configuration does not need to be sent to the new target access network equipment, so that unnecessary expenses are avoided.

Optionally, the time information specifically indicates one or more of: the source access network equipment sends the first measurement configuration moment to the terminal equipment; the source access network equipment determines the remaining duration based on the effective measurement duration in the first measurement configuration; and an elapsed time period for the measurement based on the first measurement configuration.

It should be understood that the above is merely an example, and information that can be used for determining the duration for which the terminal device continues to perform the measurement based on the first measurement configuration is listed, but this should not constitute any limitation to the present application. The present application does not limit the information specifically indicated by the time information.

Optionally, the time information is carried in the context of the terminal device.

That is, the source access network device may carry the time information in the context of the terminal device, and send the time information to the target access network device. In other words, the time information may be considered as a part of information in the context of the terminal device.

Of course, the source access network device may also send the time information to the terminal device through other existing or newly added signaling. This is not a limitation of the present application.

Optionally, at least part of the parameters in the first measurement configuration are also included in the context of the terminal device.

In order to facilitate the target access network device to determine whether the terminal device needs to perform measurement based on the parameters in the first measurement configuration, the source access network device may also send some or all of the parameters in the first measurement configuration to the target access network device. Some of the parameters in the first measurement configuration may be sent to the target access network device because some of the parameters may be indicated in other information. Such as the time information described above. If the source access network device indicates, through the time information, the duration for which the terminal device continues to measure based on the first measurement configuration, the source access network device may not need to send the measurement valid duration in the first measurement configuration to the target access network device. It should be understood that this is by way of example only for ease of understanding and should not be construed as limiting this application in any way. The source access network device may also send all parameters in the first measurement configuration to the target access network device.

In one possible design, some or all of the parameters in the first measurement configuration may also be sent to the target access network device as part of the context of the terminal device.

With reference to the second aspect, in some implementations of the second aspect, the obtaining the second message includes: and receiving a context acquisition failure message from the source access network equipment, wherein the context acquisition failure message carries the second message and is used for indicating that the context acquisition of the terminal equipment fails.

That is, the target access network device fails to acquire the context of the terminal device. The target access network device fails to become the new source access network device for the terminal device. I.e. the source access network device of the terminal device has not changed. In this case, the source access network device may generate a second message, and send the second message to the target access network device with the context acquisition failure message. After receiving the context acquisition failure message, the target access network device may determine that the context acquisition of the terminal device fails, and directly forward a second message in the context acquisition failure message to the terminal device.

Optionally, the context acquisition failure message further includes a second measurement configuration or a third measurement configuration, where the second measurement configuration includes parameters used for the terminal device to perform measurement, and the third measurement configuration includes additional parameters used for the terminal device to perform measurement.

If the source access network device configures new parameters for the terminal device, the source access network device may also forward the parameters to the terminal device through the target access network device. The new parameter for measurement may be a second measurement configuration, available to replace the first measurement configuration; it may also be a third measurement configuration that is operable to delta configure with the first measurement configuration. This is not a limitation of the present application.

In a possible design, the second measurement configuration or the third measurement configuration may be carried in a second message, and the context acquisition failure message may send the second message to the target access network device, so as to forward the second message to the terminal device through the target access network device.

Based on the above scheme, the access network device (for example, the source access network device or the target access network device) may reasonably determine according to the requirement. And if necessary, sending the parameters of the new configuration to the terminal equipment. And under the unnecessary condition, the measurement configuration is not sent, so that the unnecessary air interface overhead is avoided. Therefore, the overhead brought by the configuration parameters of the terminal equipment can be greatly reduced. Meanwhile, the measurement effect is considered, so that higher compromise efficiency between the overhead and the measurement effect is obtained.

In a third aspect, a method of communication is provided. The communication method may be performed by the source access network device, for example, or may be performed by a component (e.g., a circuit or chip) in the source access network device. This is not a limitation of the present application.

Specifically, the method may include: generating time information, wherein the time information is used for determining the duration of measurement continuing of the terminal equipment based on a first measurement configuration, the first measurement configuration is configured for the terminal equipment when the terminal equipment is indicated to enter a deactivation dynamic state, and the first measurement configuration comprises parameters used for the terminal equipment to perform measurement in the deactivation dynamic state; and sending the time information to the target access network equipment.

That is, the source access network device may generate time information and transmit the time information to the target access network device. Therefore, the target access network equipment can determine the duration of the measurement continued by the terminal equipment based on the first measurement configuration according to the time information.

Optionally, the time information is carried in the context of the terminal device. The sending of the time information to the target access network device includes: and sending the context of the terminal equipment to the target access network equipment, wherein the context of the terminal equipment comprises time information.

That is, the source access network device may send the context of the terminal device to the target access network device. Thus, the target access network device may be referred to as a new source access network device for the terminal device. In this case, the old source access network device (i.e., the source access network device) may send time information to the new source access network device (i.e., the target access network device), so that the new source access network device determines a duration for which the terminal device continues to perform measurement based on the first measurement configuration. The duration for which the terminal device continues to measure based on the first measurement configuration is the remaining duration for which the first measurement configuration is in effect. In other words, when the duration for which the terminal continues to perform measurements based on the first measurement configuration is zero, the first measurement configuration is also disabled accordingly. The terminal device and the access network device storing the first measurement configuration may each delete the first measurement configuration once the first measurement configuration fails. For example, acquiring the first measurement configuration may delete the first measurement configuration after the target access network device fails. Accordingly, the terminal device may also delete the first measurement configuration after the first measurement configuration is invalidated. The target access network equipment is used as new source access network equipment, and the first measurement configuration does not need to be sent to the new target access network equipment, so that unnecessary expenses are avoided.

Optionally, at least part of the parameters of the first measurement configuration are also included in the context of the terminal device.

For the relevant description of the context of the terminal device including at least part of the parameters of the first measurement configuration, reference may be made to the relevant description in the second aspect, and for brevity, the description is not repeated here.

In a fourth aspect, a method of communication is provided. The communication method may be performed by the source access network device, for example, or may be performed by a component (e.g., a circuit or chip) in the source access network device. This is not a limitation of the present application.

Specifically, the method may include: generating a second message, wherein the second message is used for determining whether to measure based on at least part of parameters in a first measurement configuration, the first measurement configuration is configured for the terminal equipment when the terminal equipment enters a deactivation dynamic state, and the first measurement configuration comprises parameters used for measurement of the terminal equipment in the deactivation dynamic state; and sending the second message to the terminal equipment through the target access network equipment.

In this embodiment, the second message may be generated by the source access network device. The source access network device may forward the second message to the terminal device through the target access network device. In this case, the source access network device is still the source access network device of the terminal device.

Optionally, sending the second message to the terminal device through the target access network device includes:

and sending a context acquisition failure message to the target access network device, wherein the context acquisition failure message comprises the second message, the context acquisition failure message is used for indicating that the context acquisition of the terminal device fails, and the second message is a message sent to the terminal device.

Since the source access network device does not send the context of the terminal device to the target access network device. The source access network device is still the source access network device of the terminal device and may decide whether the terminal device performs measurements based on the parameters in the first measurement configuration. The source access network device may carry the second message through the context acquisition failure message. On one hand, the target access network device is notified that the context acquisition of the terminal device fails, and on the other hand, the second message is sent to the terminal device through the target access network device.

For the description about the context acquisition failure message including the second measurement configuration or the third measurement configuration, reference may be made to the related description in the second aspect, and details are not repeated here for brevity.

Based on the scheme, the source access network equipment can reasonably judge according to the requirement. And if necessary, sending the parameters of the new configuration to the terminal equipment. And under the unnecessary condition, the measurement configuration is not sent, so that the unnecessary air interface overhead is avoided. Therefore, the overhead brought by the configuration parameters of the terminal equipment can be greatly reduced. Meanwhile, the measurement effect is considered, so that higher compromise efficiency between the overhead and the measurement effect is obtained.

With reference to the second aspect to the fourth aspect, in some possible implementations, the second message includes information indicating whether to perform measurement based on at least part of the parameters in the first measurement configuration.

With reference to the second aspect to the fourth aspect, in some possible implementations, the second message includes information indicating to restart the timer or to continue running the timer; the timer is started based on the first measurement configuration, and the running duration of the timer is a measurement valid duration included in the first measurement configuration.

With reference to the second aspect to the fourth aspect, in some possible implementations, the second message includes a second measurement configuration, and the second measurement configuration includes parameters for the terminal device to perform measurement.

With reference to the second aspect to the fourth aspect, in some possible implementations, the second message includes a third measurement configuration, and the third measurement configuration includes additional parameters for the terminal device to perform measurement.

With reference to the first aspect to the fourth aspect, in some possible implementations, the second message is a message used to release a radio resource control, RRC, connection.

Optionally, the second message is an RRC release (RRC release) message or an RRC connection release (RRC connection release) message.

In this embodiment, the target access network device may explicitly or implicitly indicate, through the second message, whether the terminal device performs measurement based on at least part of the parameters in the first measurement configuration. For the information contained in the second message and the related description of the function thereof, reference may be made to the related description in the first aspect, and for brevity, the description is not repeated here.

In a fifth aspect, a communication device is provided, which comprises means for performing the method of any one of the possible implementations of the first aspect.

In a sixth aspect, a communications apparatus is provided that includes a processor. The processor is coupled to the memory and is operable to execute instructions in the memory to implement the method of any one of the possible implementations of the first aspect. Optionally, the communication device further comprises a memory. Optionally, the communication device further comprises a communication interface, the processor being coupled to the communication interface.

In one implementation, the communication device is a terminal device. When the communication device is a terminal device, the communication interface may be a transceiver, or an input/output interface.

In another implementation, the communication device is a chip configured in the terminal equipment. When the communication device is a chip configured in a terminal device, the communication interface may be an input/output interface.

Alternatively, the transceiver may be a transmit-receive circuit. Alternatively, the input/output interface may be an input/output circuit.

In a seventh aspect, a communication device is provided, which includes various modules or units for performing the method in any one of the possible implementations of the second aspect.

In an eighth aspect, a communications apparatus is provided that includes a processor. The processor is coupled to the memory and is operable to execute the instructions in the memory to implement the method of any one of the possible implementations of the second aspect. Optionally, the communication device further comprises a memory. Optionally, the communication device further comprises a communication interface, the processor being coupled to the communication interface.

In one implementation, the communication device is an access network device. When the communication device is an access network device, the communication interface may be a transceiver, or an input/output interface.

In another implementation, the communication device is a chip configured in the access network equipment. When the communication device is a chip configured in an access network device, the communication interface may be an input/output interface.

In a ninth aspect, there is provided a communication device comprising means for performing the method of any one of the possible implementations of the third or fourth aspect.

In a tenth aspect, a communication device is provided that includes a processor. The processor is coupled to the memory and is operable to execute the instructions in the memory to implement the method of any of the possible implementations of the third aspect or the fourth aspect. Optionally, the communication device further comprises a memory. Optionally, the communication device further comprises a communication interface, the processor being coupled to the communication interface.

In an eleventh aspect, a processor is provided, including: input circuit, output circuit and processing circuit. The processing circuit is configured to receive a signal through the input circuit and transmit a signal through the output circuit, so that the processor performs the method in any one of the possible implementations of the first aspect to the fourth aspect.

In a specific implementation process, the processor may be a chip, the input circuit may be an input pin, the output circuit may be an output pin, and the processing circuit may be a transistor, a gate circuit, a flip-flop, various logic circuits, and the like. The input signal received by the input circuit may be received and input by, for example and without limitation, a receiver, the signal output by the output circuit may be output to and transmitted by a transmitter, for example and without limitation, and the input circuit and the output circuit may be the same circuit that functions as the input circuit and the output circuit, respectively, at different times. The embodiment of the present application does not limit the specific implementation manner of the processor and various circuits.

In a twelfth aspect, an apparatus is provided that includes a processor and a memory. The processor is configured to read instructions stored in the memory, and may receive a signal via the receiver and transmit a signal via the transmitter to perform the method of any one of the possible implementations of the first aspect to the fourth aspect.

Optionally, the number of the processors is one or more, and the number of the memories is one or more.

Alternatively, the memory may be integral to the processor or provided separately from the processor.

In a specific implementation process, the memory may be a non-transient memory, such as a Read Only Memory (ROM), which may be integrated on the same chip as the processor, or may be separately disposed on different chips.

It will be appreciated that the associated data interaction process, for example, sending the indication information, may be a process of outputting the indication information from the processor, and receiving the capability information may be a process of receiving the input capability information from the processor. In particular, the data output by the processor may be output to a transmitter and the input data received by the processor may be from a receiver. The transmitter and receiver may be collectively referred to as a transceiver, among others.

The apparatus in the above twelfth aspect may be a chip, the processor may be implemented by hardware or may be implemented by software, and when implemented by hardware, the processor may be a logic circuit, an integrated circuit, or the like; when implemented in software, the processor may be a general-purpose processor implemented by reading software code stored in a memory, which may be integrated with the processor, located external to the processor, or stand-alone.

In a thirteenth aspect, there is provided a computer program product comprising: a computer program (which may also be referred to as code, or instructions), which when executed, causes a computer to perform the method of any one of the possible implementations of the first to fourth aspects described above.

In a fourteenth aspect, a computer-readable medium is provided, which stores a computer program (which may also be referred to as code or instructions) that, when executed on a computer, causes the computer to perform the method of any one of the possible implementations of the first to fourth aspects.

In a fifteenth aspect, a communication system is provided, which includes the foregoing access network device and terminal device.

Drawings

Fig. 1 is a schematic diagram of a communication system suitable for use with the method provided by an embodiment of the present application;

fig. 2 is a schematic flow chart of a communication method provided by an embodiment of the present application;

fig. 3 is a schematic block diagram of a communication device provided by an embodiment of the present application;

fig. 4 is a schematic structural diagram of a terminal device provided in an embodiment of the present application;

fig. 5 is a schematic structural diagram of an access network device according to an embodiment of the present application.

Detailed Description

The technical solution in the present application will be described below with reference to the accompanying drawings.

The technical scheme of the embodiment of the application can be applied to various communication systems, for example: a Long Term Evolution (LTE) system, a LTE Frequency Division Duplex (FDD) system, a LTE Time Division Duplex (TDD) system, a Universal Mobile Telecommunications System (UMTS), a universal internet microwave access (WiMAX) communication system, a future fifth generation (5G) system or New Radio (NR), a Vehicle-to-other device (Vehicle-to-internet (V2N), a Vehicle-to-Vehicle (V2) network 82, a Vehicle-to-infrastructure (infrastructure) system, a Vehicle-to-Vehicle (V2V), a Vehicle-to-infrastructure (infrastructure) system, a Vehicle-to-Vehicle (V2I, V2P, a Vehicle-to-Vehicle (MTC) communication system, a Long Term Evolution (LTE) system, a UMTS), a Worldwide Interoperability for Microwave Access (WiMAX) communication system, a future fifth generation (5G) system or a New Radio (NR), a Vehicle-to-X V2X), wherein the V2 network 82 may include a Vehicle-to-internet (Vehicle-to-Vehicle) network, a Vehicle-to-infrastructure (Vehicle-to-Vehicle (Vehicle) system, a Vehicle-to-Vehicle (MTC) communication system, a Vehicle-to-Vehicle (Vehicle-to-communicate, a Vehicle-to-Vehicle, Internet of Things (Internet of Things, IoT), Long Term Evolution-Machine (Long Term Evolution-M) for Machine-to-Machine (Machine to Machine, M2M), and so on.

In this embodiment, an access network (RAN) device may be any device having a wireless transceiving function. Such devices include, but are not limited to: evolved Node B (eNB), Radio Network Controller (RNC), Node B (NB), Base Station Controller (BSC), Base Transceiver Station (BTS), home base station (e.g., home evolved Node B, or home Node B, HNB), baseband unit (BBU), wireless fidelity (WIFI) system, etc., and may also be a gbb or a transmission point (TRP or TP) in a 5G (e.g., NR) system, or one or a group of base stations in a 5G system may include multiple antennas, or may also be a panel of a network, or a panel of a NB, such as a baseband unit (BBU), or a Distributed Unit (DU), etc.

In some deployments, the gNB may include a Centralized Unit (CU) and a DU. The gNB may also include an Active Antenna Unit (AAU). The CU implements part of the function of the gNB, and the DU implements part of the function of the gNB, for example, the CU is responsible for processing non-real-time protocols and services, and implementing functions of a Radio Resource Control (RRC) layer and a packet data convergence layer (PDCP) layer. The DU is responsible for processing a physical layer protocol and a real-time service, and implements functions of a Radio Link Control (RLC) layer, a Medium Access Control (MAC) layer, and a Physical (PHY) layer. The AAU implements part of the physical layer processing functions, radio frequency processing and active antenna related functions. Since the information of the RRC layer eventually becomes or is converted from the information of the PHY layer, the higher layer signaling, such as the RRC layer signaling, may also be considered to be transmitted by the DU or by the DU + AAU under this architecture. It is to be understood that the access network device may be a device comprising one or more of a CU node, a DU node, an AAU node.

It should be noted that a CU may be divided into an access network device and a Core Network (CN) device, which is not limited in this application. In the embodiments of the present application, CUs are divided into access network devices for ease of understanding and explanation.

The access network device serves the cell, and the terminal device communicates with the cell through transmission resources (e.g., frequency domain resources or spectrum resources) allocated by the access network device. The cell may belong to a macro base station (e.g., a macro eNB, a macro gNB, or the like), or may belong to a base station corresponding to a small cell (small cell). Here, the small cell may include: a metro cell (metro cell), a micro cell (microcell), a pico cell (pico cell), a femto cell (femto cell), etc. The small cells have the characteristics of small coverage area and low transmission power, and are suitable for providing high-rate data transmission services.

In the embodiments of the present application, a terminal device may also be referred to as a User Equipment (UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a remote terminal, a mobile device, a user terminal, a wireless communication device, a user agent, or a user equipment. The terminal device in the embodiment of the present application may be a mobile phone (mobile phone), a tablet (pad), a computer with a wireless transceiving function, a Virtual Reality (VR) terminal device, an Augmented Reality (AR) terminal device, a wireless terminal in industrial control (industrial control), a wireless terminal in self driving (self driving), a wireless terminal in remote medical (remote medical), a wireless terminal in smart grid (smart grid), a wireless terminal in transportation security (transportation security), a wireless terminal in smart city (smart city), a wireless terminal in smart home (smart home), a cellular phone, a cordless phone, a session initiation protocol (session initiation protocol, SIP) phone, a wireless local loop (wireless local area, PDA) station, a personal digital assistant (wldigital assistant), a handheld wireless communication device with a wireless transceiving function, and a handheld personal communication device with a wireless communication function, A computing device or other processing device connected to a wireless modem, an in-vehicle device, a wearable device, a terminal device in a 5G network, a terminal device in a Public Land Mobile Network (PLMN) for future evolution, or a terminal device in a non-public network, etc.

Wherein, wearable equipment also can be called as wearing formula smart machine, is the general term of using wearing formula technique to carry out intelligent design, developing the equipment that can dress to daily wearing, like glasses, gloves, wrist-watch, dress and shoes etc.. A wearable device is a portable device that is worn directly on the body or integrated into the clothing or accessories of the user. The wearable device is not only a hardware device, but also realizes powerful functions through software support, data interaction and cloud interaction. The generalized wearable smart device includes full functionality, large size, and can implement full or partial functionality without relying on a smart phone, such as: smart watches or smart glasses and the like, and only focus on a certain type of application functions, and need to be used in cooperation with other devices such as smart phones, such as various smart bracelets for physical sign monitoring, smart jewelry and the like.

Furthermore, the terminal device may also be a terminal device in an Internet of things (IoT) system. The IoT is an important component of future information technology development, and is mainly technically characterized in that articles are connected with a network through a communication technology, so that an intelligent network with man-machine interconnection and object interconnection is realized.

The specific form of the terminal device is not limited in the present application.

For the understanding of the embodiments of the present application, a communication system suitable for the embodiments of the present application will be described in detail with reference to fig. 1. Fig. 1 shows a schematic diagram of a communication system suitable for a communication method and a communication apparatus according to an embodiment of the present application. As shown in fig. 1, the communication system 100 may include at least two access network devices, such as access network device 110 and access network device 120 shown in fig. 1; the communication system 100 may also include at least one terminal device, such as the terminal device 130 shown in fig. 1. The terminal device 130 may be mobile or stationary, among other things. Access network device 110 and access network device 120 may each be a device, such as a base station or base station controller, that may communicate with end device 130 via a wireless link. Each access network device may provide communication coverage for a particular geographic area and may communicate with terminal devices located within that coverage area (cell).

Fig. 1 exemplarily shows two access network devices and one terminal device, but this should not constitute any limitation to the present application. Alternatively, the communication system 100 may include more access network devices, and each access network device may include other numbers of terminal devices within its coverage area. Optionally, the communication system 100 may further include one or more core network devices. The embodiment of the present application does not limit this.

Each of the communication devices described above, such as access network device 110, access network device 120, or terminal device 130 in fig. 1, may be configured with multiple antennas. The plurality of antennas may include at least one transmit antenna for transmitting signals and at least one receive antenna for receiving signals. Additionally, each communication device can additionally include a transmitter chain and a receiver chain, each of which can comprise a plurality of components associated with signal transmission and reception (e.g., processors, modulators, multiplexers, demodulators, demultiplexers, antennas, etc.), as will be appreciated by one skilled in the art. Therefore, the access network equipment and the terminal equipment can communicate through the multi-antenna technology.

Optionally, the wireless communication system 100 may further include other network entities such as a network controller, a mobility management entity, and the like, which is not limited thereto.

To facilitate understanding of the embodiments of the present application, first, the terms referred to in the present application will be briefly described.

1. RRC idle (idle) state: or simply idle state. Is a state of the terminal device, and is defined in the NR and LTE protocols. The terminal equipment in the idle state and the access network equipment do not have RRC connection, so that the effect of saving electricity can be achieved. However, the terminal device does not maintain a context (e.g., UE context) at the access network device, i.e., the access network device does not know whether the terminal device exists. The terminal device has been assigned a unique identity within the Tracking Area (TA) in which it is located. Furthermore, the terminal device is already registered in the core network and there is a context in the core network. But no non-access stratum (NAS) signaling connection exists between the terminal device and the core network device.

2. RRC deactivation dynamic: another state of the terminal device is defined in the NR protocol. The deactivation dynamics may also be referred to as RRC deactivation dynamics, RRC deactivated state, or simply deactivation dynamics, deactivated state, etc. The RRC connection is disconnected between the terminal device and the access network device in the deactivated dynamic state, except that the access network device may save the context (e.g., UE context) of the terminal device in the deactivated dynamic state.

In one implementation, the access network device may configure the terminal device to enter a deactivation dynamic state through an RRC message. For example, the access network device may configure the terminal device to enter a deactivation dynamic via an RRC message for releasing the RRC connection. The message for releasing the RRC connection may be, for example, an RRC release (RRC release) message.

The RRC release message may indicate that the terminal device enters an idle state or is deactivated dynamically. For example, the RRC release message may include an Information Element (IE) to indicate whether the terminal device enters an idle state or a deactivation dynamic state. For example, the cell may be a "suspend configuration". When the RRC release message contains the cell, indicating the terminal equipment to enter a deactivation dynamic state; and when the RRC release message does not contain the cell, indicating the terminal equipment to enter an idle state.

Note that, in LTE, a state similar to the deactivation dynamic state, which is referred to as a light connection state, also exists. The RRC message for configuring the terminal device to enter the lightweight connection state may be, for example, an RRC connection release (RRC connection release) message.

Hereinafter, for convenience of explanation, the states of the terminal device having the above characteristics are collectively referred to as deactivation dynamics to be distinguished from an RRC idle state and an RRC connected state.

It should be understood that the states of these terminal devices are named for ease of distinction only and should not be construed as limiting the application in any way. This application also does not exclude the definition of other possible names in future protocols to replace existing names, but with the same or similar characteristics. For example, lightweight connected states are replaced by deactivation dynamics.

3. Early measurement: in order to be able to configure the CA or DC quickly for the terminal devices accessing the network, the terminal devices in the unconnected state may be allowed to make measurements earlier. Such measurements may therefore be referred to as Early Measurement (EM). Specifically, the access network device may send a measurement configuration to the terminal device, where the measurement configuration may include one or more parameters for measurement. The terminal device may perform measurements based on parameters in the early measurement configuration and save the measurement results. Corresponding to the early measurement, the measurement configuration may be referred to as an Early Measurement Configuration (EMC). This early measurement can also be embodied in the NR protocol as a deactivated dynamic measurement configuration (measinaactiveconfig) or an idle measurement configuration (measldleconfig). For example, the access network device may configure parameters for measurement in, for example, a cell measinitiatconfig or a measldleconfig.

It is to be understood that the above-recited names are merely exemplary designations for ease of distinction and should not be construed as limiting the application in any way. This application does not exclude the possibility that other names may be defined in future protocols to express the same or similar meaning.

In fact, the early measurement and early measurement configuration are named for distinguishing the measurement and measurement configuration of the terminal device in the RRC connected state. Since the present application does not relate to measurement and measurement configuration of a terminal device in an RRC connected state, there is no need to distinguish measurement and measurement configuration in an RRC connected state from early measurement and early measurement configuration. The measurement referred to in the following is also the earlier measurement mentioned above, and the measurement configuration is also the earlier measurement configuration mentioned above.

It is to be understood that the above-listed names are named for convenience of distinction only and should not constitute any limitation on the present application. This application also does not exclude the possibility of defining other possible names in future protocols instead of the names listed above, but with the same or similar characteristics.

The measurement configuration may include a measurement target. The measurement target may be indicated, for example, in the form of a frequency point and/or a cell identity. Wherein, the cell identifier may include: at least one of a Cell Global Identifier (CGI), a Physical Cell Identifier (PCI), and a cell identifier.

Specifically, the measurement target may only include a frequency point to indicate that a certain frequency point is measured; the measurement target may also include a frequency point and a cell identifier (e.g., PCI) that may be used to indicate that a certain cell under the frequency point is to be measured. When the cell identifier is CGI, a cell may be uniquely determined, and the measurement target may also include only the cell identifier to indicate that a certain cell is measured.

The measurement configuration may include a synchronization signal/physical broadcasting channel block (SS/PBCH block) measurement time configuration (SMTC) corresponding to the measurement target.

The measurement configuration may for example comprise a measurement validity time. The measurement validity time may be used to indicate the length of time the terminal device needs to perform the measurement. The terminal device may start a timer after receiving the measurement configuration, and the running time of the timer may be the valid measurement time. When the timer is stopped or expires, the terminal device may stop performing measurements based on parameters in the measurement configuration.

The measurement arrangement may, for example, in turn comprise a measurement active area. The measurement valid area may be shown in the form of a cell identifier and/or an area identifier, for example. The cell identifier may be, for example, a CGI. The area identifier may be, for example, a Tracking Area Code (TAC) and/or a Radio Access Network Area Code (RANAC). When the terminal device moves outside the measurement coverage, the terminal device may stop the measurement based on the parameters in the measurement configuration.

For example, it is assumed that the terminal device can acquire a measurement valid time and a measurement valid area. When the timer is running, if the terminal device moves outside the measurement valid area, the terminal device may stop the timer and stop the measurement based on the parameters in the measurement configuration.

It should be understood that the parameters included in the measurement configurations listed above are examples only and should not be construed as limiting the application in any way. The measurement configuration may include one or more parameters of the measurement valid time, the measurement target, the SMTC corresponding to the measurement target, and the measurement valid area, and may further include other more parameters, which are not listed here for brevity.

It should be noted that the above measurement configuration is a general term. The parameters included in the measurement configuration may refer to parameters included in the same measurement configuration, or may refer to parameters included in different measurement configurations. That is, specific parameters of the measurement configuration may be indicated in the same measurement configuration or different measurement configurations, which is not limited in this embodiment of the application. For example, the measurement target may be indicated in the measurement configuration carried in the system message, and the measurement valid time may be indicated in the measurement configuration carried in the RRC message (e.g., RRC release message or RRC connection release message).

It should be noted that, when the terminal device receives the measurement configuration in the RRC message and the measurement configuration in the system message, the measurement configuration in the RRC message may be preferentially used. The RRC message may be referred to as dedicated signaling for transmitting a measurement configuration, as opposed to a system message. In other words, the terminal device can preferentially use the parameters for measurement acquired from the RRC message. When there is a missing parameter configured in the RRC message, for example, when the RRC message does not include a certain parameter (e.g., a measurement target) for measurement, that is, the dedicated signaling does not configure the measurement target, the terminal device may obtain the missing parameter from the system message, for example, the measurement target.

Based on the measurement, the terminal device can obtain a measurement result of the measurement target. The terminal device may report the measurement result when dynamically initiating an access request from an idle state or a deactivation state, for example, sending any one of messages such as an RRC setup request (RRC setup request), an RRC recovery (RRC resume request), an RRC connection setup request (RRC connection setup request), and an RRC connection recovery (rrcconnectionresume request). For example, the terminal device may report the measurement result after accessing the network, for example, after the terminal device receives any one of an RRC setup (RRC setup) message, an RRC resume (RRC resume) message, an RRC connection setup (RRC connection setup) message, an RRC connection resume (RRC connection resume) message, or the like from the access network device. The measurement results may include, for example, cell identities and/or frequency points. Further, the measurement result may include signal quality of the cell. The measurement result may also include a beam identification, such as an SSB index (index), etc., or a signal quality corresponding to the beam identification and the beam.

The signal quality may include at least one of Received Signal Code Power (RSCP), Reference Signal Received Power (RSRP), Reference Signal Received Quality (RSRQ), signal to noise ratio (SNR), signal to interference plus noise ratio (SINR), Reference Signal Strength Indication (RSSI), or other signal qualities, for example. The signal quality may be, for example, cell level, beam level, SS/PBCH block level, parameter set (numbering) level, slicing (slicing) level, or bandwidth part (BWP) level. The signal quality may be obtained by measuring at least one of a channel-state information reference signal (CSI-RS), a demodulation reference signal (DMRS), a cell-specific reference signal (CRS) signal, a Synchronization Signal (SS), an SS/PBCH block, or other downlink signals, for example. The present application does not limit the relevant parameters for indicating the signal quality and the signal for obtaining the signal quality.

4. The source access network equipment and the target access network equipment: the source access network device may also be referred to as an anchor access network device, e.g., a source base station, an anchor base station, etc. The source access network device may be understood as an access network device that stores a context of the terminal device and/or an access network device that configures the terminal device to enter a deactivation dynamic. The source access network device may also configure the terminal device with parameters for measurement, i.e. parameters in the earlier measurement configuration described above.

The target access network device may also be referred to as a new access network device, e.g., a target base station, a new base station, etc.

Due to the mobility of the terminal device, the terminal device may be located within the coverage of the target access network device when the terminal device next initiates a service request to the network. The terminal device may initiate a service request to the target access network device. The target access network device may request the source access network device to obtain the context of the terminal device. If the target access network equipment acquires the context of the terminal equipment from the source access network equipment, the target access network equipment becomes new source access network equipment; if the target access network device does not acquire the context of the terminal device from the source access network device, when the source access network device sends a signaling, such as an RRC release message or an RRC connection release message, to the target access network device, the target access network device may forward the signaling of the source access network device to the terminal device. In this case, the source access network device of the terminal device is unchanged. The source access network device may configure the terminal device to enter a deactivated dynamic state or an idle state through the signaling, or may configure a new parameter for measurement for the terminal device through the signaling. Although these signals are received from the target access network device as seen by the terminal device, in fact, these signals are generated by the source access network device and forwarded to the terminal device via the target access network device.

For ease of understanding, the source access network device and the target access network device are described below with reference to the system shown in fig. 1 as an example. Assume that access network device 110 is originally the source access network device for terminal device 130. When terminal device 130 moves into the coverage area of access network device 120 and sends a service request to access network device 120, access network device 120 becomes a target access network device of terminal device 130. Access network device 120 may request access network device 110 to obtain the context of terminal device 130. If the access network device 120 acquires the context of the terminal device 130, the access network device 120 becomes a new source access network device of the terminal device 130; if the access network device 120 does not obtain the context of the terminal device 130, the access network device 110 is still the source access network device of the terminal device 130.

In this embodiment, the source access network device and the target access network device may be different access network devices. For example, the source access network device and the target access network device are different base stations, such as NB, eNB, gNB, TRP, etc., as described above.

As previously described, in some possible deployments, the gNB may include CUs and DUs. In this deployment, the source access network device and the target access network device are different access network devices, which may specifically mean that the source access network device and the target access network device are different CUs.

It should be understood that the source access network device and the target access network device are relative to the terminal device, and any one of the access network devices may be the source access network device or the target access network device of the terminal device. For example, one access network device may serve as a source access network device of one terminal device, or may serve as a target access network device of another terminal device at the same time. This is not a limitation of the present application.

After the target access network device becomes a new source access network device, the terminal device may be configured with a new configuration for measurement. This configuration may occur frequently due to the high mobility of the terminal device, which may move between cells, thus incurring a large signaling overhead.

In view of the above, the present application provides a communication method for reducing signaling overhead caused by measurement configuration.

For the purpose of facilitating understanding of the embodiments of the present application, before describing the embodiments of the present application, the following description will be made.

First, the first measurement configuration, the second measurement configuration, the third measurement configuration, and the like described in this embodiment all refer to measurement configurations that are sent by the access network device through dedicated signaling. For example, the measurement configuration sent by RRC message (e.g., RRC release message or RRC connection release message).

When the terminal device is in the coverage area of a certain access network device, for example, a cell under a certain access network device, the terminal device may acquire the parameters for measurement through the system message. It should be noted, however, that the priority of the parameters configured by dedicated signaling is higher than the priority of the parameters configured by system messages. When a certain parameter X for measurement is not configured in the dedicated signaling, the terminal device may perform measurement using the corresponding parameter X in the system message.

Second, in the embodiments of the present application, "for indicating" may include for direct indication and for indirect indication, and may also include explicit indication and implicit indication. If the information indicated by a certain piece of information is referred to as information to be indicated, in a specific implementation process, there are many ways of indicating the information to be indicated, for example, but not limited to, directly indicating the information to be indicated, such as the information to be indicated itself or an index of the information to be indicated. The information to be indicated can also be indirectly indicated by indicating other information, wherein an association relationship exists between the other information and the information to be indicated. It is also possible to indicate only a part of the information to be indicated, while the other part of the information to be indicated is known or predetermined. For example, indication of information to be indicated can also be implemented by means of pre-agreed (e.g., protocol specification) whether a certain cell exists, thereby reducing the indication overhead to some extent.

Third, in the embodiments shown below, the first, second and various numerical numbers are merely for convenience of description and are not intended to limit the scope of the embodiments of the present application. E.g. to distinguish between different measurement configurations, different fields, etc.

Fourth, "predefining" or "preconfiguration" may be implemented by pre-saving corresponding codes, tables, or other manners that may be used to indicate related information in a device (e.g., including a terminal device and an access network device), and the specific implementation manner of the present application is not limited thereto. Wherein "saving" may refer to saving in one or more memories. The one or more memories may be separate devices or may be integrated in the encoder or decoder, the processor, or the communication device. The one or more memories may also be provided as a portion of a stand-alone device, a portion of which is integrated into a decoder, a processor, or a communication device. The type of memory may be any form of storage medium and is not intended to be limiting of the present application.

Fifth, the "protocol" referred to in the embodiments of the present application may refer to a standard protocol in the communication field, and may include, for example, an LTE protocol, an NR protocol, and a related protocol applied in a future communication system, which is not limited in the present application.

Sixth, "at least one" means one or more, "a plurality" means two or more. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone, wherein A and B can be singular or plural. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. "at least one of the following" or similar expressions refer to any combination of these items, including any combination of the singular or plural items. For example, at least one (one) of a, b, and c, may represent: a, or, b, or, c, or, a and b, or, a and c, or, b and c, or, a, b and c. Wherein a, b and c may be single or plural respectively.

Seventh, in the embodiment of the present application, the descriptions "when … …", "when … …", "if" and "if" all refer to that a device (e.g., a terminal device or an access network device described below) performs corresponding processing under a certain objective condition, and are not limited to time, and do not require a certain judgment action when the device (e.g., a terminal device or an access network device described below) is implemented, and do not mean that there is another limitation.

The method provided by the embodiment of the application is described in detail below with reference to the accompanying drawings.

It should be understood that, for convenience of understanding and explanation only, the method provided by the embodiment of the present application is described in detail by taking the interaction among the terminal device, the first access network device and the second access network device as an example. This should not constitute any limitation on the subject matter of the implementations of the methods provided herein. The execution subject for executing the method provided by the embodiment of the present application may communicate by the method provided by the embodiment of the present application by running the program in which the code of the method provided by the embodiment of the present application is recorded. For example, an execution main body of the method provided in the embodiment of the present application may be a terminal device or an access network device, or may also be a functional module capable of calling a program and executing the program in the terminal device or the access network device, such as a component (e.g., a chip or a circuit) configured for the terminal device, a component (e.g., a chip or a circuit) configured for the access network device, and the like.

It should also be understood that, in the embodiments of the present application, the terminal device and/or the access network device may perform some or all of the steps in the embodiments of the present application, and these steps or operations are merely examples, and the embodiments of the present application may also perform other operations or various modifications of the operations. Further, the various steps may be performed in a different order presented in the embodiments of the application, and not all operations in the embodiments of the application may be performed.

Fig. 2 is a schematic flow chart of a communication method 200 according to an embodiment of the present application. As shown in fig. 2, the method 200 may include steps 201 through 215. The steps in method 200 are described in detail below.

In step 201, a first access network device sends a first message, where the first message is used to indicate a terminal device to enter a deactivation dynamic state, and the first message includes a first measurement configuration. Correspondingly, the terminal device receives the first message in step 201.

In the embodiment of the present application, for convenience of differentiation and description, a source access network device of a terminal device is referred to as a first access network device. The parameter configured for the terminal device by the first access network device for measurement is taken as the first measurement configuration. The first measurement configuration includes parameters for measurements by the terminal device during deactivation dynamics.

Alternatively, the first message may be a message for releasing RRC connection. In NR, the RRC message may be, for example, an RRC release (RRC release) message. In LTE, the RRC message may be, for example, an RRC connection release (RRC connection release) message.

It should be understood that the specific names of the first messages listed herein are merely examples, and should not limit the present application in any way. This application does not exclude the possibility that other messages may be defined in the future to carry out the same or similar functions.

Of course, the first message may also be other messages that may be used to instruct the terminal device to enter a deactivation dynamic state. This is not a limitation of the present application.

In step 202, the terminal device enters a deactivation dynamic state according to the first message, and performs measurement based on the parameters in the first measurement configuration.

The terminal device performs measurement based on the parameters in the first measurement configuration, and may include: and the terminal equipment performs measurement only based on the parameters in the first measurement configuration, or the terminal equipment performs measurement based on the parameters in the first measurement configuration and the parameters in the measurement configuration carried in the system message.

Specifically, as described above, when there is a missing parameter included in the first measurement configuration configured for the terminal device by the first access network device, the terminal device may obtain the missing parameter from the system message of the cell covered by the first access network device. In this case, the terminal device performs measurement based on the parameter in the first measurement configuration, which may specifically include: and the terminal equipment carries out measurement based on the parameters in the first measurement configuration and the parameters in the measurement configuration carried in the system message.

Of course, in some cases, the parameters in the first measurement configuration configured for the terminal device by the first access network device are not missing, and the terminal device may not obtain other parameters from the system message. In this case, the terminal device may perform the measurement based on only the parameters in the first measurement configuration.

The terminal device may suspend the RRC connection with the first access network device after receiving the first message, entering a deactivation dynamic state.

A terminal device entering deactivation dynamics may make measurements based on parameters in the first measurement configuration. As described above, the first measurement configuration includes the measurement valid time, the terminal device may start a timer after receiving the first message, and the running duration of the timer may be the measurement valid time. In a possible implementation manner, the terminal device may enter the deactivation dynamic state after receiving the first message. A terminal device entering deactivation dynamics may start a timer based on the first measurement configuration; or, the terminal device may also start a timer based on the first measurement configuration while entering the deactivation dynamic state; still alternatively, the terminal device may start the timer based on the first measurement configuration, and then enter the deactivation dynamic state. This is not a limitation of the present application.

In this embodiment of the present application, within the running duration of the timer, if the terminal device moves out of the measurement valid area, the terminal device does not perform the measurement any more. Meanwhile, the terminal device may pause the timer or continue running the timer. This is not a limitation of the present application.

If the terminal device suspends the timer, when the terminal device moves from the outside of the measurement effective area to the inside of the measurement effective area, the terminal device can restart the timer or continue to run the timer, and the terminal device is not limited by the application. And after restarting or continuously running the timer, the terminal equipment can continuously measure according to the parameters of the first measurement configuration. It can be understood that if the terminal device restarts the timer, the running time of the timer may be the effective measurement time in the first measurement configuration; if the terminal device continues to run the timer, the running length of the timer can be the remaining effective measurement time.

If the terminal device continues to run the timer, the terminal device may continue to perform the measurement when the terminal device moves from outside the measurement valid region to inside the measurement valid region before the timer expires.

If the first measurement configuration is not configured with the measurement valid time, the terminal device may also start a timer to record a duration of measurement based on the parameters in the first measurement configuration. Alternatively, the terminal device may not start the timer. This is not limited in this application.

Due to the mobility of the terminal device, the terminal device may move into the coverage of another access network device when the service request is next initiated. For ease of distinction and illustration, the further access network device will be referred to as the second access network device. In this embodiment, the second access network device is a target access network device of the terminal device.

The terminal device may perform step 203 and send a request for recovering the RRC connection to the second access network device. Accordingly, the second access network device receives a request for recovering the RRC connection in step 203.

In the NR, the request for restoring the RRC connection may be, for example, an RRC recovery request (RRC resume request). In LTE, the request for restoring the RRC connection may be, for example, an RRC connection resume request (RRC connection resume request).

It should be understood that the specific signaling of the request for recovering the RRC connection listed above is only an example and should not constitute any limitation to the present application. This application does not exclude the possibility of defining other messages in future protocols to achieve the same or similar functionality.

In step 204, the second access network device sends a second message, where the second message is used to instruct the terminal device to enter a deactivated dynamic state or an idle state. Correspondingly, the terminal device receives the second message, and in step 205, enters a deactivated dynamic state or an idle state according to the second message.

The second message may be a message sent by the second access network device to the terminal device in response to the request sent by the terminal device to recover the RRC connection; or after the terminal device enters the RRC connected state, the second access network device configures the terminal device to enter a deactivated dynamic state or an idle state and sends a message to the terminal device. This is not a limitation of the present application.

For example, the second access network device may configure the terminal device to enter the RRC connected state after receiving the request for recovering the RRC connection sent by the terminal device. For example, the second access network device may send a message to the terminal device to respond to the RRC recovery request. Thereby, the terminal device can enter the RRC connected state to communicate with the second access network device.

In a period of time thereafter, if the terminal device does not perform any service, the second access network device may configure the terminal device to enter an idle state or a deactivated state through the second message.

For another example, after receiving the request for recovering the RRC connection sent by the terminal device, the second access network device may also configure the terminal device to remain deactivated dynamically or enter an idle state. For example, the second access network device may generate a second message after acquiring the context of the terminal device, and send the second message to the terminal device. Alternatively, the second access network device may receive the second message sent by the first access network device and forward the second message to the terminal device. The terminal device remains in a deactivated dynamic state or enters an idle state. Step 205 may therefore alternatively remain in a deactivated dynamic or idle state, depending on the second message. This is not a limitation of the present application.

Alternatively, the second message may be a message for releasing the RRC connection.

For example, in NR, the second message may be, for example, an RRC release message. In LTE, the second message may be, for example, an RRC connection release message.

It should be understood that the specific names of the second messages listed herein are merely examples, and should not limit the present application in any way. This application does not exclude the possibility of defining other messages in future protocols to achieve the same or similar functionality. For example, the second message may also be an RRC recovery (RRC resume) message in NR or an RRC connection recovery (RRC connection resume) message in LTE.

Of course, the second message may also be other messages that may be used to instruct the terminal device to enter a deactivated dynamic state or an idle state. This is not a limitation of the present application.

The terminal device may determine whether to enter a deactivated dynamic state or an idle state based on a field in the second message. The specific process of the terminal device entering the deactivated dynamic state or the idle state according to the second message may refer to the prior art, and how to determine to enter the deactivated dynamic state or the idle state is also illustrated in the foregoing, and details are not described herein for brevity.

In step 206, the terminal device determines whether to perform measurement based on at least part of the parameters in the first measurement configuration according to the second message.

In this embodiment, the second message may be used for determining whether the terminal device performs measurement based on at least part of the parameters in the first measurement configuration, or the second message may be used for determining whether the terminal device performs measurement based on at least part of the parameters in the first measurement configuration. That is, even if the terminal device enters the coverage of the second access network device, it may still continue to perform measurements based on some or all of the parameters in the first measurement configuration. Depending on the indication of the second message.

Based on the second message, the terminal device may perform one or more of the following list:

a) determining to measure based on a parameter in a first measurement configuration;

b) determining to perform measurement based on the parameters in the first measurement configuration and the parameters in the new measurement configuration (referred to as a third measurement configuration for ease of differentiation and explanation) from the second access network device;

c) determining to measure based on the parameter in the second measurement configuration; and

d) it is determined that no measurement is to be performed.

Wherein, the terminal device performs a), determines to perform measurement based on the parameter in the first measurement configuration, and may understand that the second access network device does not send a proprietary measurement configuration. It is noted that the terminal device determines to perform the measurement based on the parameters in the first measurement configuration and does not represent that the terminal device only continues to perform the measurement based on the parameters in the first measurement configuration. As described above, when there is a missing parameter in the first measurement configuration, the terminal device may further perform measurement in combination with the parameter in the measurement configuration carried in the system message sent by the second access network device. In other words, if the terminal device performs a), the terminal device may determine to perform measurement based on all parameters in the first measurement configuration, or the terminal device may also determine to perform measurement based on all parameters in the first measurement configuration and parameters in the measurement configuration in the system message sent by the second access network device.

And the terminal device executes b), determines to perform measurement based on the parameter in the first measurement configuration and the parameter in the third measurement configuration, and may consider that the terminal device acquires the third measurement configuration sent by the second access network device from the second message. The terminal device performs measurement based on the parameters in the first measurement configuration and the parameters in the third measurement configuration, which may specifically mean that the terminal device performs delta configuration based on part or all of the parameters in the first measurement configuration and the parameters in the third measurement configuration, and may perform measurement based on the parameters obtained after the delta configuration. The parameters obtained after performing the delta configuration may comprise part or all of the parameters in the first measurement configuration. This is not a limitation of the present application.

Where delta configuration is performed based on parameters in two measurement configurations, it can be understood that the parameters in the two configurations are taken together. For example, the parameters in the first measurement configuration are represented as set 1, the parameters in the third measurement configuration are represented as set 2, and if delta configuration is performed based on the parameters in the first measurement configuration and the parameters in the third measurement configuration, the parameters obtained by delta configuration are at least part of the parameters in set 1 and all the parameters in set 2. In other words, the parameters resulting from the delta configuration may be at least some of the parameters in the first measurement configuration and all of the parameters in the third measurement configuration.

The reason why the delta configuration results in parameters that are at least part of the parameters in the first measurement configuration and all of the parameters in the third measurement configuration is that in case of a conflict between the parameters in the two configurations (i.e. the first measurement configuration and the third measurement configuration), the parameters in the third measurement configuration prevail. For example, the period of the SS/PBCH block indicated by the SMTC of the target frequency point F1 in the first measurement configuration is 10ms, and the period of the SS/PBCH block indicated by the SMTC of the target frequency point F1 in the third measurement configuration is 20ms, then the parameter obtained by the terminal device executing delta configuration is that the period of the SS/PBCH block indicated by the SMTC of the target frequency point F1 in the third measurement configuration is 20 ms.

Several examples of performing delta configuration are given below.

It is assumed that the parameters in the first measurement configuration received by the terminal device from the first access network device include a target frequency point { F2, F3}, and the parameters in the third measurement configuration received by the terminal device from the second access network device include a target frequency point { F1 }. If delta configuration is performed based on all parameters in the first measurement configuration and all parameters in the third measurement configuration, the parameters obtained after delta configuration may include target frequency points { F1, F2, F3 }.

It is assumed that the parameters in the first measurement configuration received by the terminal device from the first access network device include target frequency points { F2/SMTC2, F3/SMTC3}, and the parameters in the third measurement configuration received by the terminal device from the second access network device include target frequency points { F1/SMTC1 ', F2/SMTC 2' }. If delta configuration is performed based on all parameters in the first measurement configuration and all parameters in the third measurement configuration, the parameters obtained after delta configuration may include target frequency points { F1/SMTC1 ', F2/SMTC 2', F3/SMTC3 }.

Assuming that the parameter in the first measurement configuration received by the terminal device from the first access network device includes the measurement valid time { T1}, the parameter in the third measurement configuration received by the terminal device from the second access network device does not include the measurement valid time, and the parameter obtained after performing delta configuration may include the measurement valid time { T1 }.

Assuming that the parameter in the first measurement configuration received by the terminal device from the first access network device includes the measurement valid region, and the parameter in the third measurement configuration received by the terminal device from the target access network device does not include the measurement valid region, the parameter obtained after performing delta configuration may include the measurement valid region in the first measurement configuration.

It is assumed that the parameter in the first measurement configuration received by the terminal device from the first access network device comprises a measurement validity area { a1, a2}, and the parameter in the third measurement configuration received by the terminal device from the second access network device comprises a measurement validity area { A3 }. If the terminal device performs delta configuration based on all the parameters in the first measurement configuration and all the parameters in the third measurement configuration, the parameters obtained after performing delta configuration may include a measurement effective region { a1, a2, A3 }.

The parameters obtained after performing delta configuration based on the parameters in the first measurement configuration and the parameters in the third measurement configuration are explained in detail above by way of a few examples. These examples are merely illustrative for ease of understanding and should not be construed as limiting the present application in any way.

The third measurement configuration comprises additional parameters for the terminal device to measure. The additions described here can be, for example, additions to measurements, or additions to parameters, or a combination of both. For example, the target frequency point F1 in the above example belongs to the third measurement configuration. The target frequency point F1 is an additional measure of the existing measurements of the target frequency points F2, F3. That is, the terminal device adds the measurement of the target frequency point F1. As another example, the measurement valid region a3 in the above example belongs to the third measurement configuration. The measurement valid region A3 is an addition to the existing parameters in the measurement of the measurement valid region { a1, a2 }.

It will be appreciated that additions to the measurement or parameters, whether those are indicated by parameters in the third measurement configuration. In the present exemplary embodiment, the additional parameter for indicating the addition of the measurement and/or the additional parameter for indicating the addition of the parameter are therefore defined as additional parameters for the terminal device to measure, which are contained in the third measurement configuration.

It can be seen from the above description that if the terminal device performs b), the terminal device may perform measurements based on some or all of the parameters in the first measurement configuration and perform measurements based on the parameters in the third measurement configuration. Thus, b) can also be expressed as measuring based on some or all of the parameters in the first measurement configuration and the parameters in the third measurement configuration.

It can be understood that, when there are still missing parameters obtained after performing delta configuration based on the parameters in the first measurement configuration and the parameters in the third measurement configuration, the terminal device may further perform measurement in combination with the parameters in the measurement configuration carried in the system message sent by the second access network device. In other words, if the terminal device performs b), the terminal device may perform measurement based on the parameters in the first measurement configuration, the parameters in the third measurement configuration, and the parameters in the measurement configuration in the system message sent by the second access network device.

The terminal device executes c), and determines to perform measurement based on the parameter in the second measurement configuration, which may be understood that the terminal device may obtain, from the second message, the second measurement configuration sent by the second access network device. The terminal device performs measurements based on the parameters in the second measurement configuration, which may be based on all the parameters in the second measurement configuration, regardless of other measurement configurations, such as the first measurement configuration described above. In other words, c) can also be expressed as not measuring based on the parameters in the first measurement configuration.

It can be understood that, when there is a missing parameter in the second measurement configuration, the terminal device may further perform measurement in combination with the parameter in the measurement configuration carried in the system message sent by the second access network device. In other words, if the terminal device performs c), the terminal device may perform measurement based on the parameters in the second measurement configuration and the parameters in the measurement configuration in the system message sent by the second access network device. Thus, the terminal device may delete the first measurement configuration directly after receiving the second measurement configuration from the second access network device. That is, the terminal device need not perform delta configuration. The terminal device may make measurements based directly on all parameters in the second measurement configuration.

The terminal device performs d), determines not to perform the measurement. Since the terminal device does not perform measurements, i.e. does not perform measurements based on any measurement configuration. In the embodiment of the present application, it may be understood that the terminal device does not perform measurement based on the parameters in the first measurement configuration, and meanwhile, the second access network device is not configured with new parameters for measurement by the terminal device, such as the second measurement configuration or the third measurement configuration described above.

The terminal device may also perform a plurality of the above a), b), c) or d) based on the second message. For example, the terminal device may perform b) or c) after performing a), or the terminal device may sequentially perform b) and c) after performing a). This is not a limitation of the present application.

As mentioned above, the terminal device may perform one of a), b), c) or d) above according to the indication of the second access network device. The second access network device may indicate, through a partial field in the second message, whether the terminal device performs measurements based on at least part of the parameters in the first measurement configuration.

It should be noted that, for the convenience of understanding, the operations that may be performed by the terminal device are respectively distinguished by a), b), c) and d), and this should not constitute any limitation to the present application. Although the four possible operations of a), b), c) and d) are listed above, the four operations are not defined by the protocol. The behavior of the protocol on the terminal device may only define one or more of a), b), c), d). This is not a limitation of the present application. In case the protocol defines two or more of a), b), c), d) for the behavior of the terminal device, the terminal device may determine which of these is performed according to the indication of the second message. For example, the behavior of the protocol on the terminal device may define only a) and b), and the terminal device may perform a) or b) according to the indication of the second message; as another example, the behavior of the protocol on the terminal device may define only a) and c), and the terminal device may perform a) and c) according to the indication of the second message; as another example, the protocol defines only a) and d) for the behavior of the terminal device, and the terminal device may perform a) or d) according to the indication of the second message; also for example, the protocol defines only a), c) and d) for the behavior of the terminal device, the terminal device may perform a), c) or d) as indicated by the second message. For the sake of brevity, this is not to be enumerated here.

It is understood that the terminal device performs a) listed above, based on all the parameters in the first measurement configuration; the terminal device performs the above listed b), and performs measurement based on part or all of the parameters in the first measurement configuration; the terminal device performs the above listed c) or d) without performing measurements based on the parameters in the first measurement configuration. Thus, when the terminal device determines which of the above a), b), c) and d) is to be performed, it is also determined whether to perform a measurement based on at least some of the parameters in the first measurement configuration.

In this embodiment of the present application, the indication of whether to perform measurement based on at least part of the parameters in the first measurement configuration by the second access network device may be, for example, an explicit indication or an implicit indication, which is not limited in this application.

How the second access network device performs measurement on at least part of the parameters in the first measurement configuration through the second message and how the terminal device determines whether to perform measurement on at least part of the parameters in the first measurement configuration according to the second message are described in detail below with reference to several possible implementations.

For ease of understanding, the following description is first made: the second access network device may carry different information through different fields in the second message. For convenience of distinction and explanation, the first to fourth fields are introduced hereinafter. The first field comprises information for indicating whether to measure based on at least part of parameters in the first measurement configuration, the second field is used for carrying the second measurement configuration, the third field is used for carrying the third measurement configuration, and the fourth field comprises information for indicating whether to restart the timer or continue running the timer. It should be understood that the first field to the fourth field may be different information elements in the second message, for example, information elements with different names in the second message, or may be carried at different positions in the second message. This is not a limitation of the present application. The first field to the fourth field listed herein are named only for convenience of distinction and should not be construed as limiting the present application in any way.

In addition, the second message sent by the second access network device does not necessarily include all of the first field to the fourth field. The first field to the fourth field may be optional fields, and the second access network device may carry different fields in the second message to the terminal device as needed. For example, if the second access network device configures the second measurement configuration, a field for carrying the second measurement configuration may be carried in the second message, otherwise, the field is not included in the second message. It should be understood that this should not constitute any limitation to the present application. For example, all fields may be included in the second message, but some fields are empty, i.e. do not carry information.

In a first implementation manner, the second message includes information indicating whether to perform measurement based on at least part of parameters in the first measurement configuration. For example, a special indication field may be included in the second message, which may indicate whether to perform a measurement based on at least some of the parameters in the first measurement configuration. For the sake of distinction and explanation, this indication field is, for example, referred to as a first field. In other words, the first field comprises an indication bit indicating whether or not to perform a measurement based on at least part of the parameters in the first measurement configuration.

For example, the definition of the behavior of the terminal device by the protocol includes at least a and d) listed above. The first field may include an indication bit to indicate whether to perform a measurement based on a parameter in the first measurement configuration. That is, the 1 indication bit may be used to instruct the terminal device to perform a) or d). As one example, the second message includes the first field, but the second message does not include the second field, the third field, and the fourth field. Then, when the value of the indicator bit is "TRUE" or "1", the terminal device determines to perform a), that is, perform measurement based on all parameters in the first measurement configuration; when the indication bit takes the value "FALSE" or "0", the terminal device determines to perform d), and since the terminal device determines not to perform measurement, that is, determines not to perform measurement based on any measurement configuration, the terminal device also determines not to perform measurement based on the parameter in the first measurement configuration.

As another example, the definition of the behavior of the terminal device by the protocol may include at least a) and d) listed above. The second message may indicate whether to measure based on at least part of the parameters in the first measurement configuration by whether to include the first field. For example, when the second message includes the first field, or when the first field exists, the terminal device determines to execute a); when the second message does not include the first field, or the first field does not exist, the terminal device determines to execute d).

In a second implementation, the second measurement configuration is included in the second message. A certain special field may be predefined in the second message for carrying parameters in the second measurement configuration. For ease of differentiation and illustration, the field used to carry the parameters in the second measurement configuration is referred to as the second field. If the second field is included in the second message, it indicates that the second message includes a second measurement configuration.

Wherein the second measurement configuration comprises parameters for the terminal device to measure. As described above, the terminal device may perform measurement based on the parameter in the second measurement configuration, or perform measurement based on the parameter in the second measurement configuration and the parameter in the measurement configuration carried in the system message sent by the second access network device.

If the second message includes the second measurement configuration, that is, the second access network device configures new parameters for measurement for the terminal device. And c) if the terminal equipment acquires the second measurement configuration parameter from the second message, the terminal equipment can execute the step c). In other words, the second measurement configuration is included in the second message, which may be used to implicitly instruct the terminal device not to perform measurements based on the parameters in the first measurement configuration.

As an example, the definition of the behavior of the terminal device by the protocol may include at least c) listed above. If the second field is included in the second message but the first field, the third field and the fourth field are not included in the second message, the terminal device may perform c).

If the terminal device determines to execute c), the terminal device may perform measurement based on the parameter in the second measurement configuration after the measurement based on the parameter in the first measurement configuration is completed, that is, after the running time of the timer started based on the first measurement configuration is reached; the terminal device may also directly interrupt the measurement based on the parameter in the first measurement configuration, i.e. the timer started based on the first measurement configuration is stopped and the measurement based on the parameter in the second measurement configuration is performed. This is not a limitation of the present application. In addition, the terminal device may also delete the first measurement configuration if the terminal device has completed measurements based on the parameters in the first measurement configuration, or if the terminal device discontinues measurements based on the parameters in the first measurement configuration.

In a third implementation, the second message includes a third measurement configuration. A certain special field may be predefined in the second message for carrying parameters in the third measurement configuration. For ease of differentiation and illustration, the field used to carry the parameters in the third measurement configuration is referred to as the third field. If the third field is included in the second message, it indicates that a third measurement configuration is included in the second message.

Wherein the third measurement configuration comprises additional parameters for the terminal device to measure. As described above, the terminal device may perform measurement based on part or all of the parameters in the first measurement configuration and the parameters in the third measurement configuration, or perform measurement based on part or all of the parameters in the first measurement configuration, the parameters in the third measurement configuration, and the parameters in the measurement configuration carried in the system message sent by the second access network device.

If the second message includes the third measurement configuration, that is, the second access network device configures the terminal device with additional parameters for measurement. If the terminal device acquires the third measurement configuration from the second message, b) may be executed. In other words, the third measurement configuration is included in the second message, which may be used to implicitly instruct the terminal device to perform measurements based on some or all of the parameters in the first measurement configuration.

As an example, the definition of the behavior of the terminal device by the protocol may comprise at least b) listed above. If the third field is included in the second message but the first field, the second field and the fourth field are not included in the second message, the terminal device may perform b).

In a fourth implementation, the second message includes information indicating whether to restart or continue running the timer. For example, a special indication field may be included in the second message, which may indicate whether to restart or continue running the timer. For the sake of distinction and explanation, this indication field is, for example, denoted as a fourth field. In other words, the fourth field includes an indication bit indicating whether to restart or continue running the timer.

For example, the definition of the behavior of the terminal device by the protocol may include at least a) and d) listed above. The fourth field may include an indication bit, and when the indication bit takes the value of "TRUE" or "1", or when the fourth field is included in the second message, the restart or continuous running of the timer may be indicated, which implicitly indicates that the terminal device may perform a), that is, perform measurement based on the parameter in the first measurement configuration; when the indication bit is "FALSE" or "0", or when the fourth field is not included in the second message, it may indicate that the timer is not restarted or is not continuously running, which implicitly indicates that the terminal device may perform d), since the terminal device determines not to perform measurement, the terminal device also determines not to perform measurement based on the parameters in the first measurement configuration.

As an example, the definition of the behavior of the terminal device by the protocol may include at least a) and d) listed above. If the second message includes the fourth field, but the second message does not include the first field, the second field, and the third field, the terminal device may determine whether to execute a) or d) according to a value of an indication bit in the fourth field or whether the fourth field is included in the second message.

It should be noted that the information indicated when the second message includes the fourth field but does not include the first field, the second field, and the third field corresponds to the information indicated when the second message includes the first field but does not include the second field, the third field, and the fourth field. Accordingly, it may be considered that the second message includes the first field but does not include the second field, the third field, and the fourth field, and is equivalent to the second message including the fourth field but does not include the first field, the second field, and the third field. In other words, when the second message includes the information indicating whether to restart or continue to run the timer, but does not include the second measurement configuration, the third measurement configuration, and the information indicating whether to measure based on at least part of the parameters in the first measurement configuration, the information indicating whether to restart or continue to run the timer may be used to implicitly indicate whether to measure based on at least part of the parameters in the first measurement configuration.

Therefore, in another implementation, the second message may further indicate whether to perform measurement based on at least part of the parameters in the first measurement configuration by whether to include a fourth field without including the first field. For example, when the second message includes the fourth field but does not include the first field, or when the fourth field exists but the first field does not exist, the terminal device may be implicitly instructed to perform a); when the second message does not include the fourth field and does not include the first field, or when neither the fourth field nor the first field is present, the terminal device may be implicitly instructed to perform d).

It should be noted that, in the case that the second message includes information indicating whether to measure based on at least part of the parameters in the first measurement configuration and whether to restart or continue to run the timer, the fourth field is only used for indicating whether to restart or continue to run the timer, but not for indicating whether to measure based on at least part of the parameters in the first measurement configuration.

In addition, based on the above indication of whether to restart the timer or continue running the timer, the terminal device may perform corresponding operations. When the above-mentioned fourth field indicates information of restarting the timer (or continuing to run the timer), for example, the above-listed indication bit "TRUE" or "1", or when the fourth field is included in the second message, the terminal device may restart the timer (or continue to run the timer) according to the second message. When the fourth field indicates information not to restart the timer (or not to continue running the timer), for example, the indication bit "FALSE" or "0" listed above, or when the fourth field is not included in the second message, the terminal device may stop running the timer according to the second message.

In addition to the several implementations listed above, multiple fields may be used in combination to indicate whether the terminal device is to perform measurements based on parameters in the first measurement configuration.

For example, the second message includes a first field and a second field, and the terminal device may determine whether to execute a) according to the second field. For example, when the indication bit in the first field takes a value of "TRUE" or "1", or the second message includes the first field, the terminal device may continue to perform measurement based on the parameters in the first measurement configuration, and perform measurement based on the parameters in the second measurement configuration after the measurement based on the parameters in the first measurement configuration is completed. For another example, when the indication bit in the first field takes a value of "FALSE" or "0", or the second message does not include the first field, the terminal device may directly suspend the measurement based on the parameters in the first measurement configuration, and perform the measurement based on the parameters in the second measurement configuration.

For another example, the second message includes any one of the first field, the second field, and the third field, and a fourth field. I.e. the terminal device performs a), b) or c), it may be determined whether to restart the timer or continue running the timer according to the fourth field.

It should be noted that the second message includes the second field or the third field, that is, the second access network device configures the terminal device with new parameters for measurement. The new parameter for measurement configured by the second access network for the terminal device may or may not include the measurement validity time. If not, the second message may further include a fourth field to indicate whether to perform measurement based on the measurement validity period in the first measurement configuration.

For another example, the second message does not include any one of the first field to the fourth field. The terminal device may determine to perform d) based on the second message.

In some possible designs, the second measurement configuration and the third measurement configuration may not be distinguished by different information elements in the second message. For example, the second measurement configuration or the third measurement configuration is carried by the same cell. For the sake of easy distinction, the field for carrying the information element is hereinafter referred to as the second field. In other words, the second field contains the parameters for measurement newly configured by the access network device.

In one example, the second message includes a first field and a second field. That is, the second message includes information indicating whether to perform measurement based on at least part of the parameters in the first measurement configuration and the second measurement configuration.

If the indication bit of the first field takes the value of "TRUE" or "1", the terminal device may perform delta configuration according to part or all of the parameters in the first measurement configuration and the parameters in the second measurement configuration, and perform measurement based on the configured parameters; if the first field takes the value of "FALSE" or "0", the terminal device does not perform measurement based on the parameters in the first measurement configuration, and instead, the terminal device may perform measurement based on the parameters in the second measurement configuration.

The above examples of the indication bit in the first field are only examples, and the first field may include two or more indication bits. In one example, the definition of the behavior of the terminal device by the protocol may include a), b), c) and d) above, and the first field may instruct the terminal device to perform one of a), b), c) or d) by indicating different values of the bit.

For example, if the first field takes "00", the terminal device is instructed to perform a), that is, the measurement is performed based on all the parameters in the first measurement configuration, in this case, the second field and the third field are not included in the second message. A fourth field may be included in the second message and indicate to restart the timer or to continue running the timer. Alternatively, the fourth field may also indicate that the timer is not restarted or continuously run, and the terminal device may measure according to the measurement valid time in the measurement configuration carried in the system message sent by the second access network device.

When the value of the first field is "01", the terminal device is instructed to perform b), that is, measurement is performed based on part or all of the parameters in the first measurement configuration, in this case, the second message includes a third field.

When the value of the first field is "10", the terminal device is instructed to perform c), that is, the measurement is not performed based on the parameters in the first measurement configuration, but is performed based on the parameters in the second measurement configuration. In this case, the second field is included in the second message. The second message may also include a fourth field, and the fourth field indicates not to restart or not to continue running the timer.

When the value of the first field is "11", the terminal device is instructed to perform d), that is, the measurement is not performed based on the parameters in the first measurement configuration. In this case, the second message may include the second field and/or the third field, or may not include the second field and/or the third field. But the terminal device does not perform the measurement regardless of whether the second field and/or the third field is included.

It should be noted that, the second message described above includes a certain field, which may specifically mean that the second message carries valid information in the field; correspondingly, the second message does not include a certain field, which may specifically mean that the field is not included in the second message, or that the field is included in the second message but the field does not carry valid information.

It should be understood that the above shows several examples of the second message instructing the terminal device to perform different operations through different fields for ease of understanding, but these examples should not constitute any limitation to the present application. Based on the same concept, those skilled in the art may change or replace the content indicated by one or more of the fields, and may combine the fields to obtain more examples of different operations that may be performed by the terminal device. For the sake of brevity, this is not to be enumerated here.

It should also be understood that the meaning expressed by the above-listed indication fields and the indicated operations are only examples for ease of understanding and should not constitute any limitation to the present application. Several possible implementations are listed above in which the second access network device indicates to the terminal device whether or not to perform measurements based on part of the parameters in the first measurement configuration. It should be understood that these implementations are shown for ease of understanding only and should not be construed as limiting this application in any way.

Based on the above listed second message for the determination of whether the terminal device is to perform measurements based on at least some of the parameters in the first measurement configuration, the terminal device may perform step 207, the terminal device performs measurements based on some or all of the parameters in the first measurement configuration, or the terminal device may perform step 208, the terminal device performs measurements based on the parameters in the second measurement configuration, or the terminal device does not perform measurements.

The terminal device may perform step 208 after completing the measurement based on the parameters in the first measurement configuration, or may perform step 208 after interrupting the measurement based on the parameters in the first measurement configuration. This is not a limitation of the present application.

It will be appreciated that, as mentioned above, it is also possible for the terminal device to obtain some parameters for measurement from a system message sent by the second access network device before the measurement. Therefore, whether the terminal device performs step 207 or step 208, optionally, before the terminal device performs the measurement, the terminal device may further determine the parameter for the measurement in combination with the parameter in the measurement configuration carried in the system message sent by the second access network device.

Furthermore, if the terminal device does not perform the measurement, the terminal device may not perform other operations after step 205. Alternatively, the terminal device may delete the first measurement configuration after step 205. This is not a limitation of the present application.

It should be understood that steps 207 and 208 are shown for the sake of example only, but it should be understood that this does not represent that the terminal device has to perform steps 207 and 208, and that the terminal device may selectively perform step 207 or step 208 or not perform the measurement depending on the interpretation of the second message in step 206. Step 208 is shown in phantom for ease of understanding.

The second message in step 204 may be generated by the second access network device, or may be acquired by the second access network device from the first access network device. In response to the request by the terminal device to resume RRC connection in step 203, the second access network may attempt to obtain context information for the terminal device from the first access network device in order to provide services for the terminal device. Whether the second access network device generates the second message by itself may be determined based on whether the context of the terminal device is obtained.

Optionally, before step 204, the method further comprises: in step 209, the second access network device sends a request for acquiring the context of the terminal device. Correspondingly, in step 209, the first access network device receives the request for obtaining the context of the terminal device.

In response to the request, the first access network device may send the context of the terminal device to the second access network device, so that the second access network device successfully obtains the context of the terminal device; the first access network device may also refuse to send the context of the terminal device to the second access network device, so that the second access network device fails to acquire the context of the terminal device.

The following describes a specific process for the second access network device to acquire the second message in combination with the two cases.

As an embodiment, the second access network device generates the second message by itself.

If the second access network device obtains the context of the terminal device from the first access network, the second message may be generated by itself.

Optionally, before step 205, the method 200 further comprises:

in step 210, the second access network device receives the context of the terminal device. Correspondingly, the first access network equipment sends the context of the terminal equipment;

in step 211, the second access network device generates a second message based on the context of the terminal device received from the first access network device, where the second message is used for determining whether the terminal device performs measurement based on at least part of the parameters in the first measurement configuration.

The second access network device may obtain the context of the terminal device from the first access network device, and may become a new source access network device of the terminal device. The second message may be generated and transmitted by the second access network device based on successful acquisition of the context of the terminal device.

As previously mentioned, the second measurement configuration or the third measurement configuration may be included in the second message. That is, the second message may include the new parameters for measurement configured by the access network device for the terminal device.

Taking the example that the second message includes the second measurement configuration, in this embodiment, since the second access network device is referred to as a new source access network device of the terminal device, a new measurement configuration may be configured for the terminal device. The second measurement configuration may thus be a measurement configuration from the second access network device. Similarly, if the second message includes a third measurement configuration, the third measurement configuration may also be configured for the terminal device by the second access network device.

It should be understood that the second message is not limited to include the second measurement configuration or the third measurement configuration described above. The specific content included in the second message may refer to the description in step 206 in the embodiment of the present application, and for brevity, is not described herein again. Optionally, the context of the terminal device comprises at least part of the parameters in the first measurement configuration. That is, the first access network device may send some or all of the parameters in the first measurement configuration configured for the terminal device to the second access network device, such as one or more of a measurement target, an SMTC corresponding to the measurement target, a measurement effective area, and the like. Optionally, the context of the terminal device may also include parameters of at least part of the system message configuration for measurement.

Optionally, the method 200 further comprises:

step 212, the first access network device generates time information, where the time information is used to determine a duration for the terminal device to continue to perform measurement based on the first measurement configuration;

in step 213, the first access network device sends the time information to the second access network device. Correspondingly, in step 213, the second access network device receives time information. Specifically, the duration of the terminal device continuing to perform measurement based on the first measurement configuration may be obtained by subtracting, from the effective measurement duration in the first measurement configuration, a duration of the terminal device remaining based on the duration of the first measurement configuration that has been measured. Or, the remaining run length of the timer started based on the first measurement configuration.

In particular, the time information may specifically indicate one or more of the following:

i) the time when the first access network equipment sends the first measurement configuration to the terminal equipment;

ii) a remaining duration determined by the first access network device based on the measurement validity duration in the first measurement configuration; and

iii) the elapsed time for the first measurement configuration to make the measurement.

The second access network device may determine a duration for which the terminal device continues to make measurements based on the first measurement configuration according to one or more of i), ii) and iii) listed above.

For i), the terminal device starts a timer when receiving the first measurement configuration from the first access network device, and starts measurement based on the parameters in the first measurement configuration. And the transmission delay between the moment when the first access network device sends the first measurement configuration to the terminal device and the moment when the terminal device receives the first measurement configuration from the first access network device is very small and can be ignored. Therefore, if the time information indicates a time when the first access network device sends the first measurement configuration to the terminal device, the time information corresponds to a time when the terminal device is instructed to start measurement based on the first measurement configuration. The second access network device may determine the operation duration of the timer according to the time when the time information is received and the time when the terminal device starts to perform measurement based on the first measurement.

In addition, the first access network device may carry at least part of the parameters in the first measurement configuration, for example, the measurement validity duration, through the context of the terminal device. Therefore, the second access network device may determine, according to the measurement valid duration configured in the first measurement configuration and the running duration of the timer, a duration for which the terminal device continues to perform measurement based on the first measurement configuration.

For ii), the first access network device may directly send the remaining time length for the terminal device to continue measuring based on the first measurement configuration to the second access network device. For example, the first access network device may also time itself when sending the first measurement configuration to the terminal device. For example, the first access network device may start a timer while sending the first measurement configuration, and the running duration of the timer may be the effective duration of the measurement in the first measurement configuration. The first access network device may generate the time information according to the remaining operation duration of the timer, so as to send the time information to the second access network device. In this case, the parameter of the first measurement configuration included in the context of the terminal device, which is sent by the first access network device to the second access network device, may not include the measurement validity duration.

For iii), the first access network device may start timing itself when sending the first measurement configuration to the terminal device, as described above in relation to ii). For example, the first access network device may start a timer while sending the first measurement configuration, and the running duration of the timer may be the effective duration of the measurement in the first measurement configuration. The first access network device may generate the time information according to the used duration (i.e., the running duration of the timer) configured by the first measurement, so as to send the time information to the second access network device.

As described in the above related description of i), the first access network device may carry at least part of the parameters in the first measurement configuration, for example, the measurement validity duration, through the context of the terminal device. Therefore, the second access network device may determine, according to the measurement valid duration configured in the first measurement configuration and the running duration of the timer, a duration for which the terminal device continues to perform measurement based on the first measurement configuration.

It should be understood that the contents of the specific indications of the time information listed above are only examples and should not constitute any limitation to the present application. The specific manner in which the first access network device instructs the terminal device to continue to measure the duration based on the first measurement configuration is not limited in the present application.

It should also be understood that the first access network device does not necessarily need to send the time information to the second access network device. For example, when the measurement validity duration in the first measurement configuration is infinite, and the first access network device also includes the measurement validity duration in the context of being sent to the terminal device of the second access network device, the first access network device does not need to send the time information.

Of course, when the measurement valid duration in the first measurement configuration is infinite, but the first access network device includes the measurement valid duration in the context of the terminal device that is sent to the second access network device, the first access network device may also indicate, through the time information, that the duration for which the terminal device continues to perform measurement based on the first measurement configuration is infinite. This is not a limitation of the present application. As long as the second access network device can obtain the information related to the duration of the terminal device continuing to perform the measurement based on the first measurement configuration from the first access network device.

It should be understood that the sequence of the steps shown in fig. 2 is only an example, and should not limit the present application in any way. Here, step 212 and step 213 may be performed before step 210, or may be performed after step 210, for example. This is not a limitation of the present application.

In one possible design, the time information may also be carried in the context of the terminal device. In other words, at least part of the parameters and the time information in the first measurement configuration may be included in the context of the terminal device and sent by the first access network device to the second access network device. That is, the context of the terminal device comprises at least part of the parameters and/or time information in the first measurement configuration.

It is to be understood that, if the time information is carried in the context of the terminal device, step 213 and step 210 may be combined into one step, and step 212 may be performed before step 210, or step 212 may be performed before the first access network device sends the context of the terminal device to the second access network device.

Of course, the time information may not be carried in the context of the terminal device, and the first access network device may also send the time information to the second access network device through an additional signaling. This is not a limitation of the present application.

In this embodiment, the first access network device sends time information to the second access network device, so that the second access network device determines, according to the time information, a duration for the terminal device to continue to perform measurement based on the first measurement configuration. The duration for which the terminal device continues to perform measurements based on the first measurement configuration, i.e. the remaining time for which the first measurement configuration is in effect. The terminal device and the access network device storing the first measurement configuration may each delete the first measurement configuration once the first measurement configuration fails.

For example, if the first measurement configuration does not fail before the first access network device sends the context of the terminal device to the second access network device, the first access network device may send the context of the terminal device to the second access network device, where at least part of the parameters in the first measurement configuration is carried in the context of the terminal device. The second access network device that acquires the first measurement configuration may delete the first measurement configuration after the first measurement configuration is invalid. Accordingly, the terminal device may also delete the first measurement configuration after the first measurement configuration is invalidated. The second access network device, as a new source access network device, may not need to send the first measurement configuration to a new target access network device any more, thereby avoiding unnecessary overhead.

Correspondingly, if the first measurement configuration fails before the first access network device sends the context of the terminal device, the first access network device may directly delete the first measurement configuration without sending the first measurement configuration to the second access network device. In this case, the second access network device may reconfigure a new measurement configuration for the terminal device, for example, the second measurement configuration described above.

As another embodiment, the second access network device obtains the second message from the first access network device and sends the second message to the terminal device.

Optionally, before step 204, the method 200 further comprises:

step 214, the first access network device generates a second message, where the second message is used for determining whether the terminal device performs measurement based on at least part of the parameters in the first measurement configuration;

step 215, the first access network device sends the second message to the second access network device. Correspondingly, in step 215, the second access network device receives the second message from the first access network device.

In other words, the second access network device passes the second message through to the terminal device.

The second access network device forwards the second message received from the first access network device to the terminal device, which indicates that the second access network device does not become a new source access network device of the terminal device. In other words, the second access network device does not acquire the context of the terminal device from the first access network device.

Optionally, the second message is carried in a context acquisition failure message. Step 215 may specifically include: the first access network equipment sends a context acquisition failure message to the second access network equipment, wherein the context acquisition failure message carries the second message. Correspondingly, the second access network equipment receives the context acquisition failure message and acquires the second message from the context acquisition failure message.

The first access network device indicates, by using the second message, whether to perform measurement based on at least part of the parameters in the first measurement configuration, and how the terminal device determines, according to the second message, whether to perform measurement based on at least part of the parameters in the first measurement configuration may refer to the description in step 206 in this embodiment of the application, which is not described herein again. As previously mentioned, the second measurement configuration or the third measurement configuration may be included in the second message. That is, the second message may include the new parameters for measurement configured by the first access network device for the terminal device.

Taking the example that the second measurement configuration is included in the second message, in this embodiment, since the first access network device is still the source access network device of the terminal device, if a new measurement configuration is to be configured for the terminal device, the new measurement configuration is still configured by the first access network device. The second measurement configuration is thus a measurement configuration from the first access network device. Similarly, if the second message includes a third measurement configuration, the third measurement configuration may also be configured for the terminal device by the first access network device.

It should be understood that the second message is not limited to include the second measurement configuration or the third measurement configuration described above. The specific content included in the second message may refer to the description in step 206 in the embodiment of the present application, and for brevity, is not described herein again.

It should be noted that whether the first access network device forwards the context of the terminal device to the second access network device belongs to an internal decision of the first access network device. For example, the first access network device may send a context acquisition failure message to the second access network device in a scenario of a periodic radio access network notification area (RNA) update, a packet transmission, and the like. In other words, in the scenarios of periodic RNA update, packet transmission, and the like, the first access network device does not need to forward the context of the terminal device to the second access network device, and can still serve as the source access network device of the terminal device. It should be understood that the scenario that the first access network device does not forward the context of the terminal device, which is listed here, is merely an example, and should not constitute any limitation to the present application. The first access network device does not limit the specific scenario that the context of the terminal device is not forwarded.

It should be understood that the process of the second access network device acquiring the second message and the related operations performed subsequently are described in detail above with reference to different cases. The various steps described above are shown in the figures for ease of understanding only. This is not intended to represent that all of the steps in the figure are performed by devices such as the terminal device, the second access network device and the first access network device. For example, step 210 to step 213 may correspond to one embodiment, and step 214 and step 215 may correspond to another embodiment, and the steps corresponding to the two embodiments are respectively shown by dashed boxes in the figures for the convenience of distinction.

Based on the above technical solution, the terminal device may retain the measurement configuration (e.g. the first measurement configuration described above) received from the source cell during the process of moving from one cell (e.g. denoted as source cell) to another cell (e.g. denoted as target cell). The access network device may indicate whether the terminal device may continue to use some or all of the parameters in the first measurement configuration. In case the terminal device may continue to use all parameters in the first measurement configuration, the access network device may not have to reconfigure the terminal device with parameters for measurement with extra overhead, but only need to instruct the terminal device to continue to measure based on the parameters in the first measurement configuration with a small number of indicator bits. In the case that the configuration may be based on using part of the parameters in the first measurement configuration, the access network device may also send additional parameters for measurement to the terminal device, without sending all the configuration parameters to the terminal device, so that the overhead caused by configuration may also be reduced. Therefore, the access network device does not need to send the measurement configuration to the terminal device each time the configuration terminal device enters the deactivated dynamic state or the idle state, and the air interface overhead caused by frequent measurement configuration can be saved.

Therefore, according to the method provided by the embodiment of the present application, the access network device can reasonably determine according to the parameter in the first measurement configuration. And if necessary, sending the parameters of the new configuration to the terminal equipment. Therefore, the overhead brought by the configuration parameters of the terminal equipment can be greatly reduced. Meanwhile, the measurement effect is considered, so that higher compromise efficiency between the overhead and the measurement effect is obtained.

It should be understood that, in the foregoing embodiments, the sequence numbers of the processes do not imply an execution sequence, and the execution sequence of the processes should be determined by functions and internal logic of the processes, and should not constitute any limitation to the implementation process of the embodiments of the present application.

The method provided by the embodiment of the present application is described in detail above with reference to fig. 2. Hereinafter, the apparatus provided in the embodiment of the present application will be described in detail with reference to fig. 3 to 5.

Fig. 3 is a schematic block diagram of a communication device provided in an embodiment of the present application. As shown in fig. 3, the communication device 1000 may include a processing unit 1100 and a transceiving unit 1200.

In one possible design, the communication apparatus 1000 may correspond to the terminal device in the above method embodiment, and may be, for example, the terminal device, or a component configured for the terminal device (such as a chip or a circuit, which may be configured in the terminal device).

It should be understood that the communication apparatus 1000 may correspond to the terminal device in the method 200 according to the embodiment of the present application, and the communication apparatus 1000 may include a unit for performing the method performed by the terminal device in the method 200 in fig. 2. Also, the units in the communication device 1000 and the other operations and/or functions described above are respectively for implementing the corresponding flows of the method 200 in fig. 2.

Specifically, the transceiving unit 1200 may be configured to receive a first message from a source access network device, where the first message indicates that a terminal device enters a deactivation dynamic state, and the first message includes a first measurement configuration, where the first measurement configuration includes a parameter for the terminal device to perform measurement in the deactivation dynamic state.

The processing unit 1100 may be configured to enter a deactivation dynamic based on the first message and to perform measurements based on the first measurement configuration.

The transceiving unit 1200 is further configured to send a request for recovering the RRC connection to the target access network device, and receive a second message from the target access network device, where the second message is used to instruct the terminal device to enter a deactivated dynamic state or an idle state.

The processing unit 1100 is further configured to perform a measurement based on at least part of the parameters in the first measurement configuration according to the second message.

Optionally, the processing unit 1100 is further configured to enter a deactivated dynamic or idle state or remain in the deactivated dynamic or idle state according to the second message.

Optionally, the second message comprises information indicating that measurements are to be made based on at least part of the parameters in the first measurement configuration.

Optionally, the second message includes a second measurement configuration, and the second measurement configuration includes parameters for the terminal device to perform measurement.

Further, the processing unit 1100 is further configured to perform measurement based on the parameter in the second measurement configuration according to the second message.

Optionally, the second message includes a third measurement configuration, and the third measurement configuration includes additional parameters for the terminal device to perform measurement.

Further, the processing unit 1100 is further configured to perform configuration according to the second message based on part or all of the parameters in the first measurement configuration and the parameters in the third measurement configuration, and perform measurement based on the configured parameters.

Optionally, the second message includes information indicating to restart the timer or to continue running the timer; the timer is started based on a first measurement configuration, and the running time of the timer is the effective measurement time included in the first measurement configuration.

Further, the processing unit 1100 is further configured to restart the timer or continue running the timer according to the second message, and determine to stop performing measurement based on the first measurement configuration after the running duration of the timer is reached. When the communication device 1000 is configured to execute the method 200 in fig. 2, the processing unit 1100 may be configured to execute the steps 202, 205 and 208 in the method 200, and the transceiver unit 1200 may be configured to execute the steps 201, 203 and 204 in the method 200. It should be understood that the specific processes of the units for executing the corresponding steps are already described in detail in the above method embodiments, and therefore, for brevity, detailed descriptions thereof are omitted.

It should also be understood that when the communication apparatus 1000 is a terminal device, the transceiver unit 1200 in the communication apparatus 1000 may be implemented by a transceiver, for example, may correspond to the transceiver 2020 in the terminal device 2000 shown in fig. 4, and the processing unit 1100 in the communication apparatus 1000 may be implemented by at least one processor, for example, may correspond to the processor 2010 in the terminal device 2000 shown in fig. 4.

It should also be understood that when the communication apparatus 1000 is a chip in a terminal device, the transceiver unit 1200 in the communication apparatus 1000 may be implemented by an input/output interface.

Optionally, the communication device 1000 further includes a storage unit, and the storage unit may be configured to store instructions or data, and the processing unit may call the instructions or data stored in the storage unit to implement corresponding operations. The storage unit may be implemented by at least one memory, which may for example correspond to the memory 2030 in the terminal device 2000 in fig. 4.

In another possible design, the communication apparatus 1000 may correspond to the access network device in the above method embodiment, and may be, for example, an access network device, or a component configured for use in an access network device (e.g., a chip or a circuit, which may be configured in an access network device).

Optionally, the communication apparatus 1000 may correspond to the first access network device in the method 200 according to the embodiment of the present application, and the communication apparatus 1000 may include a unit for performing the method performed by the first access network device in the method 200 in fig. 2. Also, the units in the communication device 1000 and the other operations and/or functions described above are respectively for implementing the corresponding flows of the method 200 in fig. 2.

Specifically, the processing unit 1100 is configured to generate a second message, where the second message is used for determining whether the terminal device performs measurement based on at least part of parameters in a first measurement configuration, the first measurement configuration is configured for the terminal device when the source access network device indicates that the terminal device enters a deactivation dynamic state, and the first measurement configuration includes parameters used for the terminal device to perform measurement in the deactivation dynamic state.

The transceiving unit 1200 is configured to send the second message to the terminal device through the target access network device.

Optionally, the transceiver unit 1200 is further configured to send a first message, where the first message is used to indicate that the terminal device enters a deactivation dynamic state, and the first message includes a first measurement configuration, where the first measurement configuration includes a parameter for the terminal device to perform measurement in the deactivation dynamic state.

Optionally, the transceiver unit 1200 is further configured to receive a request for acquiring a context of the terminal device, where the request is sent from the target access network device; and is configured to send a context acquisition failure message to the target access network device, where the context acquisition failure message includes a second message, and the context acquisition failure message is used to indicate that the context acquisition for the terminal device fails.

Optionally, the second message further includes a second measurement configuration or a third measurement configuration, where the second measurement configuration includes parameters for the terminal device to perform measurement, and the third measurement configuration includes additional parameters for the terminal device to perform measurement.

In another implementation, the processing unit 1100 is configured to generate time information, where the time information is used to determine a duration for the terminal device to continue to perform measurement based on a first measurement configuration, where the first measurement configuration is from a source access network device, and the first measurement configuration includes a parameter for the terminal device to perform measurement dynamically while being deactivated.

The transceiving unit 1200 is configured to send the time information to the target access network device.

Optionally, the time information specifically indicates one or more of: the source access network equipment sends the first measurement configuration moment to the terminal equipment; or the source access network equipment determines the remaining time length based on the measurement effective time length in the first measurement configuration; or an elapsed time period for which measurements are made based on the first measurement configuration.

Optionally, the transceiver unit 1200 is further configured to receive a request for acquiring a context of the terminal device, where the request is sent from the target access network device; and is configured to send the context of the terminal device to the target access network device.

When the communication device 1000 is configured to perform the method 200 in fig. 2, the processing unit 1100 may be configured to perform the step 212 or the step 204 in the method 200, and the transceiver unit 1200 may be configured to perform the step 209 in the method 200, may be configured to perform the step 210 and the step 213 in the method 200, or may be configured to perform the step 215 in the method 200. It should be understood that the specific processes of the units for executing the corresponding steps are already described in detail in the above method embodiments, and therefore, for brevity, detailed descriptions thereof are omitted.

It is to be understood that the processing unit 1100 may be configured to perform the steps of generating and/or determining the first access network device in the method 200, and the transceiving unit 1100 may be configured to perform the steps of receiving and/or transmitting the first access network device in the method 200. For the sake of brevity, this is not to be enumerated.

Optionally, the communication apparatus 1000 may correspond to the second access network device in the method 200 according to the embodiment of the present application, and the communication apparatus 1000 may include a unit for executing the method executed by the second access network device in the method 200 in fig. 2. Also, the units in the communication device 1000 and the other operations and/or functions described above are respectively for implementing the corresponding flows of the method 200 in fig. 2.

Specifically, the transceiving unit 1200 is configured to receive a second message and to transmit the second message to the terminal device. The second message is used for determining whether the terminal device performs measurement based on at least part of parameters in a first measurement configuration, the first measurement configuration is configured for the terminal device when the source access network device indicates that the terminal device enters a deactivation dynamic state, and the first measurement configuration comprises parameters used for the terminal device to perform measurement in the deactivation dynamic state.

Optionally, the transceiver unit 1200 is further configured to send a request for acquiring a context of the terminal device to the source access network device, and receive a context acquisition failure message from the source access network device, where the context acquisition failure message includes a second message, and the context acquisition failure message is used to indicate that the context acquisition for the terminal device fails.

Optionally, the context acquisition failure message includes a second measurement configuration or a third measurement configuration, where the second measurement configuration includes parameters for the terminal device to perform measurement, and the third measurement configuration includes additional parameters for the terminal device to perform measurement.

In another implementation, the processing unit 1100 is configured to generate a second message, where the second message is used for determining whether the terminal device performs measurement based on at least part of parameters in a first measurement configuration, the first measurement configuration is configured for the terminal device when the source access network device indicates that the terminal device enters a deactivation dynamic state, and the first measurement configuration includes parameters for the terminal device to perform measurement in the deactivation dynamic state.

The transceiving unit 1200 is configured to transmit the second message.

Optionally, the transceiving unit 1200 is further configured to send a request for obtaining a context of the terminal device to the source access network device, and receive the context of the terminal device from the source access network device. The processing unit 1100 may generate the second message based on the received context of the terminal device.

Optionally, the transceiver unit 1200 is further configured to receive time information from the source access network device, where the time information is used to determine a duration for the terminal device to continue to perform measurement based on the first measurement configuration.

Optionally, the time information specifically indicates one or more of: the moment when the source access network equipment sends the first measurement configuration to the terminal equipment; the source access network equipment determines the remaining duration based on the effective measurement duration in the first measurement configuration; and an elapsed time period for the measurement based on the first measurement configuration.

In combination with the above two implementations, optionally, the second message includes information indicating that the measurement is performed based on at least part of the parameters in the first measurement configuration.

With reference to the foregoing two implementation manners, optionally, the second message includes a second measurement configuration, where the second measurement configuration includes a parameter for the terminal device to perform measurement.

With reference to the foregoing two implementation manners, optionally, the second message includes a third measurement configuration, and the third measurement configuration includes additional parameters for the terminal device to perform measurement.

With reference to the foregoing two implementation manners, optionally, the second message includes information for indicating to restart the timer or continue to run the timer; the timer is started based on a first measurement configuration, and the running time of the timer is the effective measurement time included in the first measurement configuration.

With reference to the above two implementation manners, optionally, the second message further includes a second measurement configuration or a third measurement configuration, where the second measurement configuration includes parameters used for the terminal device to perform measurement, and the third measurement configuration includes additional parameters used for the terminal device to perform measurement.

When the communication device 1000 is used to execute the method 200 in fig. 2, the processing unit 1100 may be configured to execute the step 211 in the method 200, the transceiver unit 1200 may be configured to execute the steps 203, 204, and 209 in the method 200, may also be configured to execute the steps 210 and 213 in the method 200, or may also be configured to execute the step 215 in the method 200. It should be understood that the specific processes of the units for executing the corresponding steps are already described in detail in the above method embodiments, and therefore, for brevity, detailed descriptions thereof are omitted.

It is to be understood that the processing unit 1100 may be configured to perform the steps of generating and/or determining the second access network device in the method 200, and the transceiving unit 1100 may be configured to perform the steps of receiving and/or transmitting the second access network device in the method 200. For the sake of brevity, this is not to be enumerated.

It should also be understood that when the communication apparatus 1000 is an access network device, the transceiver unit 1200 in the communication apparatus 1000 may be implemented by a transceiver, for example, may correspond to the radio frequency unit 3012 and the antenna 3011 in the access network device 3000 shown in fig. 5, and the processing unit 1100 in the communication apparatus 1000 may be implemented by at least one processor, for example, may correspond to the processor 3022 in the base station 3000 shown in fig. 5.

It should also be understood that, when the communication device 1000 is a chip configured in an access network device, the transceiver unit 1200 in the communication device 1000 may be implemented by an input/output interface.

Optionally, the communication device 1000 further includes a storage unit, and the storage unit may be configured to store instructions or data, and the processing unit may call the instructions or data stored in the storage unit to implement corresponding operations. The storage unit may be implemented by at least one memory, for example, which may correspond to memory 3201 in access network device 3000 in fig. 5.

Fig. 4 is a schematic structural diagram of a terminal device 2000 according to an embodiment of the present application. The terminal device 2000 can be applied to the system shown in fig. 1, and performs the functions of the terminal device in the above method embodiment. As shown, the terminal device 2000 includes a processor 2010 and a transceiver 2020. Optionally, the terminal device 2000 further comprises a memory 2030. The processor 2010, the transceiver 2002 and the memory 2030 may be in communication with each other via the interconnection path to transfer control and/or data signals, the memory 2030 may be used for storing a computer program, and the processor 2010 may be used for retrieving and executing the computer program from the memory 2030 to control the transceiver 2020 to transmit and receive signals. Optionally, the terminal device 2000 may further include an antenna 2040, configured to transmit uplink data or uplink control signaling output by the transceiver 2020 by using a wireless signal.

The processor 2010 and the memory 2030 may be combined into a processing device, and the processor 2010 is configured to execute the program codes stored in the memory 2030 to achieve the above functions. In particular, the memory 2030 may be integrated with the processor 2010 or may be separate from the processor 2010. The processor 2010 may correspond to the processing unit in fig. 3.

The transceiver 2020 and the antenna 2040 may correspond to the transceiver unit in fig. 3, and may also be referred to as a transceiver unit. The transceiver 2020 may include a receiver (or receiver, receiving circuit) and a transmitter (or transmitter, transmitting circuit). Wherein the receiver is used for receiving signals, and the transmitter is used for transmitting signals.

It should be understood that terminal device 2000 shown in fig. 4 is capable of implementing various processes involving the terminal device in the method embodiment shown in fig. 2. The operations and/or functions of the modules in the terminal device 2000 are respectively to implement the corresponding flows in the above-described method embodiments. Reference may be made specifically to the description of the above method embodiments, and a detailed description is appropriately omitted herein to avoid redundancy.

The processor 2010 may be configured to perform the actions described in the preceding method embodiments as being implemented within the terminal device, and the transceiver 2020 may be configured to perform the actions described in the preceding method embodiments as being transmitted by the terminal device to the access network device or received by the access network device. Please refer to the description of the previous embodiment of the method, which is not repeated herein.

Optionally, the terminal device 2000 may further include a power supply 2050 for supplying power to various devices or circuits in the terminal device.

In addition, in order to further improve the functions of the terminal device, the terminal device 2000 may further include one or more of an input unit 2060, a display unit 2070, an audio circuit 2080, a camera 2090, a sensor 2100, and the like, and the audio circuit may further include a speaker 2082, a microphone 2084, and the like.

Fig. 5 is a schematic structural diagram of an access network device provided in an embodiment of the present application, which may be a schematic structural diagram of a base station, for example. The base station 3000 can be applied to the system shown in fig. 1, and performs the functions of the first access network device or the second access network device in the above method embodiment. As shown, the base station 3000 may include one or more DUs 3010 and one or more CUs 3020. The CU 3020 may communicate with a NG core (next generation core network, NC). The DU 3010 may include at least one antenna 3011, at least one radio unit 3012, at least one processor 3013, and at least one memory 3014. The DU 3010 is mainly used for transceiving radio frequency signals, converting radio frequency signals to baseband signals, and performing partial baseband processing. The CU 3020 may include at least one processor 3022 and at least one memory 3021. The CU 3020 and the DU 3010 may communicate with each other via an interface, where a Control Plane (CP) interface may be Fs-C, such as F1-C, and a User Plane (UP) interface may be Fs-U, such as F1-U.

The CU 3020 is mainly used for performing baseband processing, controlling a base station, and the like. The DU 3010 and the CU 3020 may be physically located together or physically located separately, that is, distributed base stations. The CU 3020 is a control center of the base station, and may also be referred to as a processing unit, and is mainly configured to perform a baseband processing function. For example, the CU 3020 may be configured to control the base station to perform the operation procedure related to the access network device in the above method embodiment.

Specifically, the baseband processing on the CU and the DU may be divided according to the protocol layers of the radio network, for example, the functions of the PDCP layer and the above protocol layers are set in the CU, and the functions of the protocol layers below the PDCP layer, for example, the functions of the RLC layer and the MAC layer, are set in the DU. For another example, a CU realizes functions of an RRC layer and a PDCP layer, and a DU realizes functions of an RLC layer, an MAC layer, and a PHY layer.

Further, base station 3000 may optionally include one or more radio frequency units (RUs), one or more DUs, and one or more CUs. Wherein a DU may include at least one processor 3013 and at least one memory 3014, an RU may include at least one antenna 3011 and at least one radio frequency unit 3012, and a CU may include at least one processor 3022 and at least one memory 3021.

In an example, the CU 3020 may be formed by one or more single boards, where the multiple single boards may support a radio access network with a single access indication (e.g., a 5G network) or support radio access networks with different access schemes (e.g., an LTE network, a 5G network, or other networks) respectively. The memory 3021 and the processor 3022 may serve one or more boards. That is, the memory and processor may be provided separately on each board. Multiple boards may share the same memory and processor. In addition, each single board can be provided with necessary circuits. The DU 3010 may be formed by one or more boards, where the boards may jointly support a radio access network with a single access instruction (e.g., a 5G network), and may also respectively support radio access networks with different access schemes (e.g., an LTE network, a 5G network, or other networks). The memory 3014 and the processor 3013 may serve one or more boards. That is, the memory and processor may be provided separately on each board. Multiple boards may share the same memory and processor. In addition, each single board can be provided with necessary circuits.

It should be understood that the base station 3000 shown in fig. 5 is capable of implementing various processes involving the first access network device or the second access network device in the method embodiment shown in fig. 2. The operations and/or functions of the respective modules in the base station 3000 are respectively for implementing the corresponding flows in the above-described method embodiments. Reference may be made specifically to the description of the above method embodiments, and a detailed description is appropriately omitted herein to avoid redundancy.

It should be understood that the base station 3000 shown in fig. 5 is only one possible architecture of an access network device, and should not constitute any limitation to the present application. The method provided by the application can be applied to access network equipment with other architectures. E.g. access network equipment including CUs, DUs and AAUs etc. The present application is not limited to the specific architecture of the access network device.

The embodiment of the application also provides a processing device, which comprises a processor and an interface; the processor is configured to perform the method of any of the above method embodiments.

It is to be understood that the processing means described above may be one or more chips. For example, the processing device may be a Field Programmable Gate Array (FPGA), an Application Specific Integrated Circuit (ASIC), a system on chip (SoC), a Central Processing Unit (CPU), a Network Processor (NP), a digital signal processing circuit (DSP), a Microcontroller (MCU), a Programmable Logic Device (PLD), or other integrated chips.

In implementation, the steps of the above method may be performed by integrated logic circuits of hardware in a processor or instructions in the form of software. The steps of a method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware processor, or may be implemented by a combination of hardware and software modules in a processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in a memory, and a processor reads information in the memory and completes the steps of the method in combination with hardware of the processor. To avoid repetition, it is not described in detail here.

It should be noted that the processor in the embodiments of the present application may be an integrated circuit chip having signal processing capability. In implementation, the steps of the above method embodiments may be performed by integrated logic circuits of hardware in a processor or instructions in the form of software. The processor described above may be a general purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components. The various methods, steps, and logic blocks disclosed in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in a memory, and a processor reads information in the memory and completes the steps of the method in combination with hardware of the processor.

It will be appreciated that the memory in the embodiments of the subject application can be either volatile memory or nonvolatile memory, or can include both volatile and nonvolatile memory. The non-volatile memory may be a read-only memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an electrically Erasable EPROM (EEPROM), or a flash memory. Volatile memory can be Random Access Memory (RAM), which acts as external cache memory. By way of example, but not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic Random Access Memory (SDRAM), double data rate SDRAM, enhanced SDRAM, SLDRAM, Synchronous Link DRAM (SLDRAM), and direct rambus RAM (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

According to the method provided by the embodiment of the present application, the present application further provides a computer program product, which includes: computer program code which, when run on a computer, causes the computer to perform the method in the embodiment shown in fig. 2.

According to the method provided by the embodiment of the present application, a computer-readable medium is further provided, where the computer-readable medium stores a program code, and when the program code runs on a computer, the computer is caused to perform the method performed by any one of the foregoing embodiments, for example, the method performed by the terminal device, the first access network device, or the second access network device in the embodiment shown in fig. 2.

According to the method provided by the embodiment of the present application, the present application further provides a system, which includes the foregoing one or more terminal devices and one or more access network devices.

In the above-mentioned various apparatus embodiments, the access tending device completely corresponds to the terminal device and the access network device or the terminal device in the method embodiments, and the corresponding module or unit executes the corresponding steps, for example, the communication unit (transceiver) executes the steps of receiving or transmitting in the method embodiments, and other steps besides transmitting and receiving may be executed by the processing unit (processor). The functions of the specific elements may be referred to in the respective method embodiments. The number of the processors may be one or more.

As used in this specification, the terms "component," "module," "system," and the like are intended to refer to a computer-related entity, either hardware, firmware, a combination of hardware and software, or software in execution. For example, a component may be, but is not limited to being, a process running on a processor, an object, an executable, a thread of execution, a program, and/or a computer. By way of illustration, both an application running on a computing device and the computing device can be a component. One or more components can reside within a process and/or thread of execution and a component may be localized on one computer and/or distributed between two or more computers. In addition, these components can execute from various computer readable media having various data structures stored thereon. The components may communicate by way of local and/or remote processes such as in accordance with a signal having one or more data packets (e.g., data from two components interacting with another component in a local system, distributed system, and/or across a network such as the internet with other systems by way of the signal).

Those of ordinary skill in the art will appreciate that the various illustrative logical blocks and steps (step) described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.

In the above embodiments, the functions of the functional units may be fully or partially implemented by software, hardware, firmware, or any combination thereof. When implemented in software, 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 (programs). The procedures or functions described in accordance with the embodiments of the present application are generated in whole or in part when the computer program instructions (programs) are loaded and executed on a computer. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored on a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, from one website, computer, server, or data center to another website, computer, server, or data center via wire (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that incorporates one or more of the available media. The usable medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a Digital Video Disk (DVD)), or a semiconductor medium (e.g., a Solid State Disk (SSD)), among others.

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a read-only memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A method of communication, the method comprising:

receiving a first message from a source access network device, wherein the first message indicates that a terminal device enters a deactivation dynamic state, the first message comprises a first measurement configuration, and the first measurement configuration comprises parameters used for measurement of the terminal device in the deactivation dynamic state;

according to the first message, entering deactivation dynamic state, and measuring based on the first measurement configuration;

sending a request for recovering Radio Resource Control (RRC) connection to target access network equipment, and receiving a second message from the target access network equipment, wherein the second message indicates that the terminal equipment enters a deactivated dynamic state or an idle state;

according to the second message, measurements are made based on at least part of the parameters in the first measurement configuration.

2. The communication method of claim 1, wherein the second message comprises information indicating to measure based on at least part of the parameters in the first measurement configuration.

3. The communication method according to claim 1 or 2, wherein the second message comprises a second measurement configuration comprising parameters for the terminal device to measure, the method further comprising:

according to the second message, performing measurement based on the parameters in the second measurement configuration.

4. The communication method according to claim 1 or 2, wherein the second message comprises a third measurement configuration comprising additional parameters for the terminal device to measure.

5. The communication method of claim 4, wherein said measuring based on at least part of the parameters in the first measurement configuration comprises:

measuring based on at least part of the parameters in the first measurement configuration and the parameters in the third measurement configuration.

6. The communication method according to any one of claims 1 to 5, wherein the second message includes information for indicating to restart a timer or to continue running a timer; the timer is started based on the first measurement configuration, and the running time of the timer is the effective measurement time included in the first measurement configuration.

7. The communication method of claim 6, wherein the method further comprises:

and restarting a timer or continuing to run the timer according to the second message, and determining to stop measuring based on the first measurement configuration after the running time of the timer is up.

8. A method of communication, the method comprising:

acquiring a second message, where the second message is used for determining whether a terminal device performs measurement based on at least part of parameters in a first measurement configuration, the first measurement configuration is configured for the terminal device when a source access network device indicates that the terminal device enters a deactivation dynamic state, and the first measurement configuration includes parameters used for the terminal device to perform measurement in the deactivation dynamic state;

and sending the second message to the terminal equipment.

9. The communication method of claim 8, wherein the second message comprises information indicating whether to measure based on at least part of the parameters in the first measurement configuration.

10. The communication method according to claim 8 or 9, wherein the second message comprises a second measurement configuration comprising parameters for the terminal device to measure.

11. The communication method according to claim 8 or 9, wherein the second message comprises a third measurement configuration comprising additional parameters for the terminal device to measure.

12. The communication method according to any one of claims 8 to 11, wherein the second message includes information indicating to restart a timer or to continue running a timer; the timer is started based on the first measurement configuration, and the running time of the timer is the effective measurement time included in the first measurement configuration.

13. The communication method according to any of claims 8 to 12, wherein said obtaining a second message comprises:

generating the second message based on a context of the terminal device received from a source access network device.

14. The communication method of claim 13, wherein the method further comprises:

and receiving time information from the source access network equipment, wherein the time information is used for determining the duration of the terminal equipment continuing to measure based on the first measurement configuration.

15. The communication method of claim 14, wherein the time information specifically indicates one or more of:

the time when the source access network device sends the first measurement configuration to the terminal device;

the source access network equipment determines a remaining duration based on the measurement valid duration in the first measurement configuration; and

an elapsed time period for the measurement is based on the first measurement configuration.

16. A method of communication according to claim 14 or 15, wherein the time information is carried in the context of the terminal device.

17. A method of communicating according to any of claims 13 to 16, wherein at least some of the parameters in the first measurement configuration are also included in the context of the terminal device.

18. The communication method according to any of claims 8 to 17, wherein said obtaining a second message comprises:

receiving a context acquisition failure message from a source access network device, where the context acquisition failure message carries the second message, and the context acquisition failure message is used to indicate that the context acquisition of the terminal device fails.

19. The communication method according to claim 18, wherein the context acquisition failure message further includes a second measurement configuration or a third measurement configuration, the second measurement configuration includes parameters for the terminal device to perform measurement, and the third measurement configuration includes additional parameters for the terminal device to perform measurement.

20. A method of communication, the method comprising:

generating a second message for determination of whether to measure based on at least part of parameters in a first measurement configuration, wherein the first measurement configuration is configured for a terminal device when the terminal device enters a deactivation dynamic state, and the first measurement configuration comprises parameters used for measurement of the terminal device in the deactivation dynamic state;

and sending the second message to the terminal equipment through the target access network equipment.

21. The communication method of claim 20, wherein the second message comprises information indicating to measure based on at least part of the parameters in the first measurement configuration.

22. The communication method according to claim 20 or 21, wherein the second message comprises a second measurement configuration comprising parameters for the terminal device to measure.

23. The communication method according to claim 20 or 21, wherein the second message comprises a third measurement configuration comprising additional parameters for the terminal device to measure.

24. The communication method according to any one of claims 20 to 23, wherein the second message includes information indicating to restart a timer or to continue running a timer; the timer is started based on the first measurement configuration, and the running time of the timer is the effective measurement time included in the first measurement configuration.

25. The communication method according to any of claims 20 to 24, wherein the sending the second message to the terminal device through the target access network device comprises:

sending a context acquisition failure message to the target access network device, where the context acquisition failure message includes the second message, the context acquisition failure message is used to indicate that the context acquisition for the terminal device fails, and the second message is a message sent to the terminal device.

26. The communication method of claim 25, wherein the second message further comprises a second measurement configuration or a third measurement configuration, the second measurement configuration comprising parameters for the terminal device to measure, the third measurement configuration comprising additional parameters for the terminal device to measure.

27. The communication method according to one of claims 1 to 26, wherein the second message is a message for releasing a radio resource control, RRC, connection.

28. A communication apparatus, characterized in that it comprises means for implementing the method according to any one of claims 1 to 27.

29. A communications apparatus, comprising:

a processor for executing computer instructions stored in a memory to cause the apparatus to perform the method of any of claims 1 to 27.

30. A computer storage medium comprising a program or instructions which, when executed, perform a method as claimed in any one of claims 1 to 27.