CN109392039B - Communication switching method and device - Google Patents
Communication switching method and device Download PDFInfo
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- CN109392039B CN109392039B CN201710687743.4A CN201710687743A CN109392039B CN 109392039 B CN109392039 B CN 109392039B CN 201710687743 A CN201710687743 A CN 201710687743A CN 109392039 B CN109392039 B CN 109392039B
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- 238000004891 communication Methods 0.000 title claims abstract description 93
- 238000000034 method Methods 0.000 title claims abstract description 90
- 238000005259 measurement Methods 0.000 claims description 30
- 230000000977 initiatory effect Effects 0.000 claims description 9
- 230000011664 signaling Effects 0.000 abstract description 7
- 239000002699 waste material Substances 0.000 abstract description 6
- 230000003247 decreasing effect Effects 0.000 description 6
- 238000012545 processing Methods 0.000 description 5
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
- H04W36/0016—Hand-off preparation specially adapted for end-to-end data sessions
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0055—Transmission or use of information for re-establishing the radio link
- H04W36/0079—Transmission or use of information for re-establishing the radio link in case of hand-off failure or rejection
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/24—Reselection being triggered by specific parameters
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/34—Reselection control
- H04W36/36—Reselection control by user or terminal equipment
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Abstract
The invention discloses a communication switching method, which comprises the following steps: the user equipment/base station judges whether the number of times of starting condition switching or unfinishing condition switching in preset time is greater than a preset threshold value; if the number of times is greater than the preset threshold, the user equipment/base station stops starting the condition switching/configuring new condition switching within the preset time. The invention also discloses a communication switching device. Through the mode, the invention can avoid the ping-pong problem when the user equipment is in the wireless environment which meets the triggering condition but does not meet the switching condition, thereby reducing the waste of resources and power consumption and the signaling overhead.
Description
Technical Field
The present invention relates to the field of communications, and in particular, to a method and an apparatus for communication handover.
Background
Handover is the most fundamental and important procedure in mobility management. In LTE/LTE-a, handover of user equipment is base station controlled. In NR, since a high frequency carrier and a beamforming technique are used, a change in a channel state is fast, which may cause a failure in transmitting a handover command to a user equipment from a source base station, i.e., a base station to which the user equipment is currently connected. Once this occurs, the control signaling between the ue and the base station disappears, and the ue may enter Radio Link Failure (RLF) and perform RRC reestablishment, which results in longer delay.
To solve this problem, a conditional handover (i.e. autonomous handover) is proposed, specifically, the user equipment measures the measurement objects (generally including the neighboring cells/beams of the cell/beam to which the user equipment is currently connected), sending a measurement report to a source base station (namely a base station of a cell/beam currently connected with user equipment) to start conditional switching when a trigger condition is met, negotiating with the source base station after the source base station selects a candidate object according to the measurement report, wherein the candidate object comprises part or all of measurement objects, sending a conditional switching instruction to the user equipment after the negotiation is successful, the conditional switching instruction comprises information of the candidate object which is successfully negotiated and switching conditions, and the candidate object is measured by the user equipment, the actual handover may be initiated by itself when the handover condition is satisfied, attempting to handover to a target object selected from the candidate objects.
The conditional switch has a validity period, and if the user equipment is not actually switched to the target base station after the validity period is reached, the conditional switch is abandoned. The triggering condition may be that the signal quality of the measurement object is better than the signal quality of the currently connected cell and the difference between the signal quality of the measurement object and the signal quality of the currently connected cell is greater than a first threshold, the handover condition may be that the signal quality of the candidate object is better than the signal quality of the currently connected cell and the difference between the signal quality of the candidate object and the signal quality of the currently connected cell is greater than a second threshold, the first threshold is smaller than the second threshold, and the source base station may complete handover preparation work when the channel quality is relatively better.
If the ue stays in a radio environment where the triggering condition is met but the handover condition is not met, for example, near the edge of the source cell, the following situation may occur, as shown in fig. 1, S1: the user equipment judges that the triggering condition is met; s2: the user equipment sends a measurement report to a source base station to start condition switching; s3: the user equipment judges that the switching condition is not met and does not start actual switching; s4: and after the validity period is ended, the condition switching fails. After the step S4, since the ue still stays in the same wireless environment, it is determined again that the triggering condition is satisfied, and the step S1 is skipped to repeatedly execute the above steps, thereby causing a dead loop or ping-pong problem, and bringing about a lot of resource and power consumption waste and signaling overhead.
Disclosure of Invention
The technical problem mainly solved by the invention is to provide a communication switching method and a communication switching device, which can solve the problems of a large amount of resources, power consumption waste and signaling overhead caused by the fact that user equipment in the prior art stays in a wireless environment which meets a trigger condition but does not meet a switching condition.
In order to solve the above technical problem, a first aspect of the present invention provides a communication handover method, including: the user equipment judges whether the number of times of starting condition switching or unfinishing condition switching in preset time is greater than a preset threshold value; and if the times are greater than the preset threshold value, the user equipment stops starting condition switching within the preset time.
In order to solve the above technical problem, a second aspect of the present invention provides a communication handover method, including: the base station judges whether the number of times of starting condition switching or unfinishing condition switching in preset time is greater than a preset threshold value; and if the times are greater than the preset threshold value, the base station stops configuring new condition switching within the preset time.
In order to solve the above technical problem, a third aspect of the present invention provides a communication switching apparatus, which includes a processor and a communication circuit, wherein the processor is connected to the communication circuit, and the processor is configured to execute instructions to implement the method provided by the first or second aspect of the present invention.
In order to solve the above technical problem, a fourth aspect of the present invention provides a communication switching apparatus, which stores instructions that, when executed, implement the method provided by the first or second aspect of the present invention.
The invention has the beneficial effects that: the user equipment/base station judges whether the number of times of starting condition switching or unfinishing condition switching in preset time is greater than a preset threshold value; if the number of times is greater than the preset threshold, the user equipment/base station stops starting condition switching/configuring new condition switching within the preset time, even if the user equipment stays in a wireless environment which meets the triggering condition but does not meet the switching condition, after the number of times of condition switching is greater than the preset threshold, the user equipment and/or the base station can control that new condition switching does not occur any more within the preset time, the ping-pong problem is avoided, and therefore resource and power consumption waste and signaling overhead are reduced.
Drawings
Fig. 1 is a flowchart illustrating a first embodiment of a communication handover method according to the present invention;
FIG. 2 is a flowchart illustrating a second embodiment of a communication handover method according to the present invention;
FIG. 3 is a flowchart illustrating a communication handover method according to a third embodiment of the present invention;
fig. 4 is a flowchart illustrating a communication handover method according to a fourth embodiment of the present invention;
fig. 5 is a flowchart illustrating a fifth embodiment of a communication handover method according to the present invention;
fig. 6 is a flowchart illustrating a sixth embodiment of a communication handover method according to the present invention;
fig. 7 is a flowchart illustrating a communication handover method according to a seventh embodiment of the present invention;
fig. 8 is a flowchart illustrating an eighth embodiment of a communication handover method according to the present invention;
fig. 9 is a flowchart illustrating a ninth embodiment of the communication handover method according to the present invention;
fig. 10 is a flowchart illustrating a tenth embodiment of the communication handover method according to the present invention;
fig. 11 is a flowchart illustrating an eleventh embodiment of a communication handover method according to the present invention;
fig. 12 is a flowchart illustrating a twelfth embodiment of a communication handover method according to the present invention;
fig. 13 is a schematic structural diagram of a first embodiment of the communication switching apparatus of the present invention;
fig. 14 is a schematic structural diagram of a second embodiment of the communication switching apparatus of the present invention;
fig. 15 is a schematic structural diagram of a third embodiment of the communication switching apparatus of the present invention;
fig. 16 is a schematic structural diagram of a communication switching apparatus according to a fourth embodiment of the present invention.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and examples. Non-conflicting ones of the following embodiments may be combined with each other.
The main executing body of the first embodiment of the communication switching method of the present invention is User Equipment (UE), which may be fixed or mobile, and may be a cellular phone, a Personal Digital Assistant (PDA), a wireless modem, a tablet computer, a notebook computer, a cordless phone, etc. As shown in fig. 1, the present embodiment includes:
s11: the user equipment judges whether the number of times of starting condition switching or unfinishing condition switching in preset time is larger than a preset threshold value.
Initiating a conditional handover may include sending a measurement report to the source base station, i.e. the base station of the cell to which the UE is currently connected. The UE may send a measurement report to the source base station to initiate a conditional handover after determining that the trigger condition is satisfied. Before this step, the UE may receive a measurement configuration message from the source base station, where the message includes a trigger condition, and may further include a condition for starting measurement and/or a measurement object.
The conditional handover incomplete may include an actual handover failure or an actual handover not initiated within a validity period of the conditional handover. The UE may count only the number of times of initiating one of the conditional access and the conditional access, or may count both the number of times. The preset time may be greater than a product of a preset threshold and a validity period of the conditional switch.
The UE can monitor the preset time by using a timer, count the number of times of starting condition switching or incomplete condition switching by using a counter, and simultaneously start the timer and the counter or respectively start the timer and the counter. If the preset threshold is 0, it means that the condition switching can be started or not completed only once within the preset time, in which case the counter can be omitted.
S12: and if the times are greater than the preset threshold value, the user equipment stops starting condition switching within the preset time.
The number of times is greater than the preset threshold value, which indicates that the ue may stay in a wireless environment that satisfies the trigger condition but does not satisfy the handover condition, and to avoid the ping-pong problem, the ue stops initiating the condition handover within a preset time, that is, within the remaining time, even if the ue determines that the trigger condition is satisfied, the ue does not send the measurement report to the source base station to initiate the condition handover until the preset time is over. In this case, the user equipment may still perform a conventional base station controlled handover procedure to enable mobility management.
If the number of times is less than or equal to the preset threshold, the user equipment may normally initiate the conditional handover.
After the preset time, if the UE determines that the trigger is satisfied, the UE can normally send a measurement report to the source base station to start conditional handover.
Through the implementation of the embodiment, even if the user equipment stays in the wireless environment which meets the triggering condition but does not meet the switching condition, after the number of times of condition switching is greater than the preset threshold value, the user equipment can not start new condition switching within the preset time, so that the ping-pong problem is avoided, and the resource and power consumption waste and the signaling overhead are reduced.
As shown in fig. 2, the second embodiment of the communication switching method of the present invention is based on the first embodiment of the communication switching method of the present invention, and uses a timer and a counter to perform the determination. This embodiment is an extension of the first embodiment of the communication handover method of the present invention, and the same parts are not described herein again. The embodiment comprises the following steps:
s111: the user equipment starts a timer and initializes a counter, and the effective duration of the timer is preset time.
The initial value of the counter may be 0, a preset threshold, or other values. The order of starting the timer and initializing the counter is not limited.
S112: if the condition switching is started or not completed within the validity period of the timer, the value of the counter is increased/decreased by one.
S113: and the user equipment judges whether the difference value between the current value and the initial value of the counter is greater than a preset threshold value.
If the difference is greater than the preset threshold, it means that the condition switching is started or the number of times of the condition switching is not completed within the preset time is greater than the preset threshold, and the process goes to step S114.
If the initial value of the counter is 0 and the counter counts in an incremental manner, i.e. one is added each time, the user equipment in this step can directly determine whether the current value of the counter is greater than the preset threshold value. If the initial value of the counter is the preset threshold and the counter counts in a decreasing manner, i.e. decrements by one each time, the user equipment in this step can directly determine whether the current value of the counter is less than 0. By analogy, the judgment of the initial value of the counter as other values and/or the judgment of the counter according to the current value of the counter in other counting modes can be obtained.
S114: and the user equipment stops starting condition switching within preset time.
As shown in fig. 3, the third embodiment of the communication switching method according to the present invention is based on the first embodiment of the communication switching method according to the present invention, and only a timer is used to perform the determination, and the timer is started first and then the monitoring is performed to determine whether the conditional switch is started or whether the conditional switch is not completed. This embodiment is an extension of the first embodiment of the communication handover method of the present invention, and the same parts are not described herein again. The embodiment comprises the following steps:
s121: the user equipment starts a timer, and the effective duration of the timer is preset time.
S122: and in the validity period of the timer, if the condition switching is started or not completed, the UE stops starting the condition switching.
The preset threshold in this embodiment is 0, which means that the ue should stop the conditional handover once the conditional handover is initiated or the conditional handover is not completed, so the counter may be omitted.
As shown in fig. 4, a fourth embodiment of the communication switching method according to the present invention is based on the first embodiment of the communication switching method according to the present invention, and only a timer is used to perform the determination, and the timer is started after the condition switching is started or the condition switching is not completed. This embodiment is an extension of the first embodiment of the communication handover method of the present invention, and the same parts are not described herein again. The embodiment comprises the following steps:
s131: the user equipment initiates the conditional switch or the conditional switch is not completed.
S132: the user equipment starts a timer, and the effective duration of the timer is preset time.
S133: and the user equipment stops starting the condition switching within the valid period of the timer.
Similar to the previous embodiment, the preset threshold in this embodiment is also 0, which means that the ue should stop the start condition switching once the start condition switching is completed or the condition switching is not completed, so the counter can be omitted.
As shown in fig. 5, a fifth embodiment of the communication handover method according to the present invention is based on the first embodiment of the communication handover method according to the present invention, wherein the preset time includes a connection period between the ue and a currently connected cell. This embodiment is an extension of the first embodiment of the communication handover method of the present invention, and the same parts are not described herein again. The embodiment comprises the following steps:
s141: the user equipment initializes a counter.
The initial value of the counter may be 0, a preset threshold, or other values.
Since the preset time includes a connection period between the ue and the currently connected cell, that is, once the number of times that the ue starts conditional access or completes conditional access is greater than a preset threshold, the ue does not start conditional access within the connection period between the ue and the current cell, that is, before the ue switches to another base station, a timer in this embodiment may be omitted.
S142: if the condition switch is started or not completed, the counter is incremented/decremented by one.
S143: and the user equipment judges whether the difference value between the current value and the initial value of the counter is greater than a preset threshold value.
If the difference is greater than the preset threshold, it means that the number of times of the internal startup condition switching or the condition switching is not completed is greater than the preset threshold, and the process goes to step S144.
If the initial value of the counter is 0 and the counter counts in an incremental manner, i.e. one is added each time, the user equipment in this step can directly determine whether the current value of the counter is greater than the preset threshold value. If the initial value of the counter is the preset threshold and the counter counts in a decreasing manner, i.e. decrements by one each time, the user equipment in this step can directly determine whether the current value of the counter is less than 0. By analogy, the judgment of the initial value of the counter as other values and/or the judgment of the counter according to the current value of the counter in other counting modes can be obtained.
S144: the user equipment stops starting the condition switching.
As shown in fig. 6, a sixth embodiment of the communication handover method according to the present invention is based on the first embodiment of the communication handover method according to the present invention, and before S11, the method further includes:
s10: the method comprises the steps that user equipment receives a preset threshold value and/or preset time from a base station of a cell connected currently; or the user equipment determines the preset threshold value and/or the preset time by itself.
The preset threshold and/or the preset time may be determined according to a state of the ue, which may include a moving speed of the ue and/or a signal quality of a candidate/measured object measured by the ue. The moving speed may be calculated by the user equipment itself, or calculated by the base station according to the location information of the user equipment at different times.
Under the condition that the preset time is the same, the larger the preset threshold value is, the more times the condition switching can be performed is meant; in the case where the preset threshold is the same, the shorter the preset time, the shorter the time for prohibiting the condition switching.
In particular, a faster moving speed means that the user equipment has a higher probability of initiating an actual handover, a larger preset threshold and/or a shorter preset time. The better the signal quality of the candidate/measurement object measured by the ue, means that the higher the probability of initiating an actual handover, the larger the preset threshold and/or the shorter the preset time.
The execution subject of the seventh embodiment of the communication handover method of the present invention is a base station, which is taken as the base station of the currently connected cell in this embodiment. The base station is connected with the core network and performs wireless communication with the user equipment to provide communication coverage for a corresponding geographic area. The base station may be a macro base station, a micro base station, a pico base station, or a home base station (femtocell). In some embodiments, a base station may also be referred to as a radio base station, access point, node B, evolved node B (eNodeB, eNB), gNB, or other suitable terminology. As shown in fig. 7, the present embodiment includes:
s21: the base station judges whether the number of times of starting condition switching or unfinishing condition switching in the preset time is larger than a preset threshold value.
Initiating a conditional handover comprises receiving a measurement report from the user equipment. The user equipment may send a measurement report after deciding that the trigger condition is satisfied. Before this step, the base station may send a measurement configuration message to the user equipment, where the message includes a trigger condition, and further, the message may include a condition for starting measurement and/or a measurement object.
The incomplete conditional switch includes a notification that the actual switch was not received within the validity period of the conditional switch. The notification of the actual handover may be from the user equipment, or may be from the target base station (i.e. the base station of the target object to which the user equipment is actually handed over), for example, from the target base station to release the notification of the access context of the user equipment.
The base station may count only the number of times of starting one of the conditional switch and the incomplete conditional switch, or count the number of times of both the conditional switch and the incomplete conditional switch. The preset time may be greater than a product of a preset threshold and a validity period of the conditional switch.
The base station can monitor the preset time by using a timer, count the number of times of starting condition switching or incomplete condition switching by using a counter, and simultaneously start the timer and the counter or respectively start the timer and the counter. If the preset threshold is 0, it means that the condition switching can be started or not completed only once within the preset time, in which case the counter can be omitted.
S22: and if the times are greater than the preset threshold value, the base station stops configuring new condition switching within the preset time.
If the number of times is greater than the preset threshold, it indicates that the ue may stay in a wireless environment that satisfies the trigger condition but does not satisfy the handover condition, and to avoid ping-pong, the base station stops configuring new conditional handover within the preset time, that is, within the remaining time, even if the ue receives the measurement report again, it does not perform subsequent conditional handover configuration (including selecting the candidate object, negotiating with the base station of the candidate object, sending a conditional handover command to the ue) for the ue until the preset time is over. In this case, the base station may still perform a conventional base station controlled handover procedure to enable user equipment mobility management.
If the base station still has unfinished conditional switch configuration when the determination times are larger than the preset threshold, the base station can finish the current conditional switch configuration.
Through the implementation of the embodiment, even if the user equipment stays in the wireless environment which meets the triggering condition but does not meet the switching condition, after the number of times of condition switching is greater than the preset threshold value, the base station can control the switching without configuring a new condition within the preset time, so that the ping-pong problem is avoided, and the resource and power consumption waste and the signaling overhead are reduced.
As shown in fig. 8, an eighth embodiment of the communication switching method according to the present invention is a communication switching method according to the seventh embodiment of the present invention, wherein a timer and a counter are used for the determination. This embodiment is an extension of the first embodiment of the communication handover method of the present invention, and the same parts are not described herein again. The embodiment comprises the following steps:
s211: the base station starts a timer and initializes a counter, and the effective duration of the timer is preset time.
The initial value of the counter may be 0, a preset threshold, or other values. The order of starting the timer and initializing the counter is not limited.
S212: if the condition switching is started or not completed within the validity period of the timer, the value of the counter is increased/decreased by one.
S213: and the base station judges whether the difference value between the current value and the initial value of the counter is greater than a preset threshold value.
If the difference is greater than the preset threshold, it means that the condition switching is started or the number of times of the condition switching is not completed within the preset time is greater than the preset threshold, and the process goes to step S214.
If the initial value of the counter is 0 and the counter counts in an incremental manner, i.e. one is added each time, the user equipment in this step can directly determine whether the current value of the counter is greater than the preset threshold value. If the initial value of the counter is the preset threshold and the counter counts in a decreasing manner, i.e. decrements by one each time, the user equipment in this step can directly determine whether the current value of the counter is less than 0. By analogy, the judgment of the initial value of the counter as other values and/or the judgment of the counter according to the current value of the counter in other counting modes can be obtained.
S214: and the base station stops configuring new condition switching within preset time.
As shown in fig. 9, a ninth embodiment of the communication switching method according to the present invention is based on the seventh embodiment of the communication switching method according to the present invention, wherein only a timer is used to perform the determination, and the timer is started first and then whether the conditional switch is started or the conditional switch is not completed is monitored. This embodiment is an extension of the first embodiment of the communication handover method of the present invention, and the same parts are not described herein again. The embodiment comprises the following steps:
s221: the base station starts a timer, and the effective duration of the timer is preset time.
S222: and in the validity period of the timer, if the condition switching is started or not completed, the base station stops configuring new condition switching.
The preset threshold in this embodiment is 0, which means that the base station should stop configuring a new conditional handover once the conditional handover is started or the conditional handover is not completed, so the counter can be omitted.
As shown in fig. 10, a tenth embodiment of the communication switching method according to the present invention is based on the seventh embodiment of the communication switching method according to the present invention, and only a timer is used to perform the determination, and the timer is started after the condition switching is monitored or the condition switching is not completed. This embodiment is an extension of the first embodiment of the communication handover method of the present invention, and the same parts are not described herein again. The embodiment comprises the following steps:
s231: the base station starts the conditional switch or the conditional switch is not completed.
S232: the base station starts a timer, and the effective duration of the timer is preset time.
S233: and the base station stops configuring new condition switching within the validity period of the timer.
Similar to the previous embodiment, the preset threshold in this embodiment is also 0, which means that the ue should stop configuring a new conditional handover once the conditional handover is initiated or the conditional handover is not completed, so the counter can be omitted.
As shown in fig. 11, an eleventh embodiment of the communication handover method of the present invention is based on the seventh embodiment of the communication handover method of the present invention, wherein the preset time includes a connection period between the ue and the base station. This embodiment is an extension of the first embodiment of the communication handover method of the present invention, and the same parts are not described herein again. The embodiment comprises the following steps:
s241: the base station initializes a counter.
The initial value of the counter may be 0, a preset threshold, or other values.
Since the preset time includes a connection period between the ue and the base station, that is, for the same ue, once the number of times that the base station starts the conditional access or completes the conditional access is greater than the preset threshold, the base station does not configure a new conditional access for the ue in the connection period between the ue and the base station, that is, before the ue switches to another base station, the timer in this embodiment may be omitted.
S242: if the condition switch is started or not completed, the counter is incremented/decremented by one.
S243: and the base station judges whether the difference value between the current value and the initial value of the counter is greater than a preset threshold value.
If the difference is greater than the preset threshold, it means that the condition switching is initiated or the number of times the condition switching is not completed within the preset time is greater than the preset threshold, and the process skips to step S244.
If the initial value of the counter is 0 and the counter counts in an incremental manner, i.e. one is added each time, the user equipment in this step can directly determine whether the current value of the counter is greater than the preset threshold value. If the initial value of the counter is the preset threshold and the counter counts in a decreasing manner, i.e. decrements by one each time, the user equipment in this step can directly determine whether the current value of the counter is less than 0. By analogy, the judgment of the initial value of the counter as other values and/or the judgment of the counter according to the current value of the counter in other counting modes can be obtained.
S244: the base station stops configuring new conditional switching.
As shown in fig. 12, a twelfth embodiment of the communication handover method according to the present invention is a communication handover method according to the seventh embodiment of the present invention, where S21 further includes:
s20: and the base station sends a preset threshold value and/or preset time to the user equipment.
The preset threshold and/or the preset time may be determined according to a state of the ue, where the state of the ue may include a moving speed of the ue and/or a signal quality of a measurement object in a measurement report reported by the ue. The moving speed may be calculated and reported by the user equipment itself, or calculated by the base station according to the location information of the user equipment at different times.
Under the condition that the preset time is the same, the larger the preset threshold value is, the more times the condition switching can be performed is meant; in the case where the preset threshold is the same, the shorter the preset time, the shorter the time for prohibiting the condition switching.
In particular, a faster moving speed means that the user equipment has a higher probability of initiating an actual handover, a larger preset threshold and/or a shorter preset time. The better the signal quality of the measurement object means that the higher the probability of initiating an actual handover, the larger the preset threshold and/or the shorter the preset time.
As shown in fig. 13, the first embodiment of the communication switching apparatus of the present invention includes: processor 110 and communication circuit 120, communication circuit 120 is connected to processor 110.
The communication circuit 120 is used for transmitting and receiving user data, and is an interface for the communication switching apparatus to communicate with other communication devices.
The processor 110 controls the operation of the communication switching device, and the processor 110 may also be referred to as a Central Processing Unit (CPU). The processor 110 may be an integrated circuit chip having signal processing capabilities. The processor 110 may also be a general purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The processor 110 is configured to execute instructions to implement the method provided by any one of the first to sixth embodiments of the communication handover method of the present invention and any non-conflicting combination.
The communication switching device in this embodiment may be a user equipment, or may be a separate component, such as a baseband chip, that may be integrated in the user equipment.
As shown in fig. 14, the second embodiment of the communication switching apparatus of the present invention includes: processor 210 and communication circuit 220, communication circuit 220 is connected to processor 210.
The communication circuit 220 is used for transmitting and receiving user data, and is an interface for the communication switching device to communicate with other communication apparatuses.
The processor 210 controls the operation of the communication switching device, and the processor 110 may also be referred to as a Central Processing Unit (CPU). The processor 110 may be an integrated circuit chip having signal processing capabilities. The processor 110 may also be a general purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The processor 210 is configured to execute instructions to implement the method provided by any one of the seventh to twelfth embodiments of the communication handover method of the present invention and any non-conflicting combinations.
The communication switching device in this embodiment may be a base station, or may be a separate component, such as a baseband board, that may be integrated into the base station.
As shown in fig. 15, the third embodiment of the communication switching apparatus of the present invention includes a memory 310, and the memory 310 stores instructions that, when executed, implement the method provided by any one of the first to sixth embodiments of the communication switching method of the present invention and any non-conflicting combination.
The Memory 310 may include a Read-Only Memory (ROM), a Random Access Memory (RAM), a Flash Memory (Flash Memory), a hard disk, an optical disk, and the like.
The communication switching device in this embodiment may be a user equipment, or may be a separate component, such as a baseband chip, that may be integrated in the user equipment.
As shown in fig. 16, the fourth embodiment of the communication switching apparatus of the present invention includes a memory 410, and the memory 410 stores instructions that, when executed, implement the method provided by any one of the seventh to twelfth embodiments of the communication switching method of the present invention and any non-conflicting combinations.
The Memory 410 may include a Read-Only Memory (ROM), a Random Access Memory (RAM), a Flash Memory (Flash Memory), a hard disk, an optical disk, and the like.
The communication switching device in this embodiment may be a base station, or may be a separate component, such as a baseband board, that may be integrated into the base station.
In the above embodiments, how the user equipment and the base station control the number of conditional handovers within a preset time is described respectively. In practical applications, only one of the two controllers may perform the number control of the condition switching, or both the two controllers may perform the number control of the condition switching at the same time
In the embodiments provided in the present invention, it should be understood that the disclosed method and apparatus can be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the modules or 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 embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit 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 invention may be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, a network device, or the like) or a processor (processor) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (16)
1. A method of communication handover, comprising:
the user equipment judges whether the condition switching is started within preset time or the number of times of the condition switching is not finished is larger than a preset threshold value;
if the times are larger than the preset threshold value, the user equipment stops starting the condition switching within the preset time;
the preset threshold and the preset time are determined according to the state of the user equipment, the state includes a moving speed and signal quality of a candidate object/a measured object obtained through measurement, the faster the moving speed is, the larger the preset threshold is and/or the shorter the preset time is, the better the signal quality of the candidate object/the measured object is, and the larger the preset threshold is and/or the shorter the preset time is.
2. The method of claim 1,
the incomplete conditional handover includes failure of actual handover or failure to start the actual handover within a validity period of the conditional handover, and the starting of the conditional handover includes sending a measurement report to a base station of a currently connected cell.
3. The method of claim 1,
the user equipment judging whether the condition switching is started in the preset time or the number of times of the condition switching not being finished is larger than a preset threshold value comprises the following steps:
the user equipment starts a timer and initializes a counter, and the effective duration of the timer is the preset time;
in the validity period of the timer, if the condition switching is started or is not completed, adding one to/subtracting one from the value of the counter;
and the user equipment judges whether the difference value between the current value and the initial value of the counter is greater than the preset threshold value.
4. The method of claim 1,
the preset threshold is 0, and the step of judging whether the condition switching is started within the preset time or the number of times of the condition switching not being completed is greater than the preset threshold by the user equipment comprises the following steps:
the user equipment starts a timer, and the effective duration of the timer is the preset time;
and in the validity period of the timer, if the condition switching is started or the condition switching is not finished, the UE judges that the number of times of starting the condition switching or the condition switching is not finished is greater than the preset threshold value.
5. The method of claim 1,
the preset threshold is 0, and the step of judging whether the condition switching is started within the preset time or the number of times of the condition switching not being completed is greater than the preset threshold by the user equipment comprises the following steps:
the user equipment starts condition switching or the condition switching is not completed;
the user equipment starts a timer, and the effective duration of the timer is the preset time;
and in the validity period of the timer, the UE judges that the condition switching is started or the number of times of incomplete condition switching is greater than the preset threshold value.
6. The method of claim 1,
before the ue determines whether the condition switching is started within a preset time or the number of times the condition switching is not completed is greater than a preset threshold, the method further includes:
the user equipment receives the preset threshold value and/or the preset time from the base station of the current connected cell; or
And the user equipment determines the preset threshold and/or the preset time by itself.
7. The method according to any one of claims 1 to 6,
the preset time includes a connection period of the user equipment and a base station of a currently connected cell.
8. A method of communication handover, comprising:
the base station judges whether the number of times of starting condition switching or not finishing the condition switching in a preset time is greater than a preset threshold value;
if the times are larger than the preset threshold value, the base station stops configuring new condition switching within the preset time;
the preset threshold and/or the preset time determines that the state includes a moving speed and signal quality of a candidate object/measurement object obtained through measurement according to the state of the user equipment, the faster the moving speed is, the larger the preset threshold is and/or the shorter the preset time is, the better the signal quality of the candidate object/measurement object is, and the larger the preset threshold is and/or the shorter the preset time is.
9. The method of claim 8,
the not completing the conditional handover comprises not receiving a notification of an actual handover within a validity period of the conditional handover, and the initiating the conditional handover comprises receiving a measurement report from a user equipment.
10. The method of claim 8,
the base station judging whether the condition switching is started in the preset time or whether the number of times of the condition switching not being finished is larger than a preset threshold value or not comprises the following steps:
the base station starts a timer and initializes a counter, and the effective duration of the timer is the preset time;
in the validity period of the timer, if the condition switching is started or is not completed, adding one to/subtracting one from the value of the counter;
and the base station judges whether the difference value between the current value and the initial value of the counter is greater than the preset threshold value.
11. The method of claim 8,
the preset threshold is 0, and the base station determining whether the condition switching is started within a preset time or the number of times of the condition switching not being completed is greater than the preset threshold includes:
the base station starts a timer, and the effective duration of the timer is the preset time;
and in the validity period of the timer, if the condition switching is started or the condition switching is not finished, the base station judges that the number of times of starting the condition switching or the condition switching is not finished is greater than the preset threshold value.
12. The method of claim 8,
the preset threshold is 0, and the base station determining whether the condition switching is started within a preset time or the number of times of the condition switching not being completed is greater than the preset threshold includes:
the base station starts the condition switching or the condition switching is not completed;
the base station starts a timer, and the effective duration of the timer is the preset time;
and in the validity period of the timer, the base station judges that the number of times of starting the conditional switch or the incomplete conditional switch is greater than the preset threshold value.
13. The method of claim 8,
before the base station judges whether the condition switching is started within the preset time or the number of times of unfinished condition switching is greater than a preset threshold value, the method further comprises the following steps:
and the base station sends the preset threshold value and/or the preset time to user equipment.
14. The method according to any one of claims 8 to 13,
the preset time comprises a connection period of the user equipment and the base station.
15. A communication switching apparatus, comprising a processor and a communication circuit, wherein the processor is connected to the communication circuit;
the processor is configured to execute instructions to implement the method according to any one of claims 1-7, 8-14.
16. A computer-readable storage medium storing instructions that, when executed, implement the method of any one of claims 1-7, 8-14.
Priority Applications (2)
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| CN201710687743.4A CN109392039B (en) | 2017-08-11 | 2017-08-11 | Communication switching method and device |
| PCT/CN2017/107979 WO2019029015A1 (en) | 2017-08-11 | 2017-10-27 | Communication handover method and apparatus |
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| CN201710687743.4A CN109392039B (en) | 2017-08-11 | 2017-08-11 | Communication switching method and device |
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| CN112822728A (en) * | 2019-11-15 | 2021-05-18 | 中国移动通信有限公司研究院 | Information reporting and receiving method, terminal and network equipment |
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