CN103503517B - A kind of method and apparatus of optimization alien frequencies handover delay - Google Patents

A kind of method and apparatus of optimization alien frequencies handover delay Download PDF

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Publication number
CN103503517B
CN103503517B CN201280000274.XA CN201280000274A CN103503517B CN 103503517 B CN103503517 B CN 103503517B CN 201280000274 A CN201280000274 A CN 201280000274A CN 103503517 B CN103503517 B CN 103503517B
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China
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time
base station
user equipment
evolution base
measurement reports
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CN201280000274.XA
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Chinese (zh)
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CN103503517A (en
Inventor
黄波
刘艺
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华为技术有限公司
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Priority to PCT/CN2012/070242 priority Critical patent/WO2013104121A1/en
Publication of CN103503517A publication Critical patent/CN103503517A/en
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Publication of CN103503517B publication Critical patent/CN103503517B/en

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/0005Control or signalling for completing the hand-off
    • H04W36/0083Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
    • H04W36/0085Hand-off measurements
    • H04W36/0088Scheduling hand-off measurements

Abstract

The invention discloses a kind of method and apparatus of optimization alien frequencies handover delay.In the method, user equipment sends A4 event measurement reports to evolution base station after postponing to specify the time, and the specified time deducts measurement gap time delay equal to the above-mentioned A4 event measurement reports triggered time;Above-mentioned user equipment receives switching command, and the switching command is switched over according to above-mentioned A4 event measurement reports in above-mentioned evolution base station and sent under judgement successful instance.Using the technical scheme that the present invention is provided, user equipment alien frequencies handover delay can be optimized.

Description

A kind of method and apparatus of optimization alien frequencies handover delay

Technical field

The present invention relates to moving communicating field, more particularly to a kind of technology of optimization alien frequencies handover delay.

Background technology

User equipment (English be User Equipment, abbreviation UE) only one of which signal receiver under normal circumstances, Synchronization can only receive the signal on same frequency.Therefore, in Long Term Evolution, (English is Long Term Evolution, simple Claiming LTE) when carrying out alien frequencies and switching, above-mentioned UE needs to be periodically turned on gap (English is GAP) pattern and goes to measure neighbor cell Information, be easy to the switching of alien frequencies.GAP is just so that above-mentioned UE leaves current measurement frequency point to other frequencies to adjacent The time period that cell is measured.When the serving cell quality that above-mentioned UE is located is poor, (English is evolution base station Evolved Node B, abbreviation eNB) the relevant configuration configured information of above-mentioned GAP patterns will be issued to above-mentioned UE, above-mentioned UE will be by Configuration according to above-mentioned eNB indicates to start GAP patterns.

At present, when UE meets the condition of alien frequencies switching, eNB may be subject to upper when switching command is issued to above-mentioned UE State impacts of the UE when using GAP patterns to carry out different-frequency measure and so that switching command is carried out after GAP patterns terminate in above-mentioned UE Above-mentioned UE is handed down to, now, above-mentioned UE alien frequencies switching will have a switching time delay.Above-mentioned UE is tied in GAP patterns After beam, the opportunity of reporting measurement reports is voluntarily controlled by above-mentioned UE.So, eNB issue switching command randomly will meet it is above-mentioned UE starts GAP patterns carries out different-frequency measure, so as to the switching time that increased user plane postpones.

The content of the invention

Embodiments of the invention in order to reduce eNB issue switching command meet at random UE start GAP patterns carry out alien frequencies survey The probability of amount, so as to reduce the time delayses of alien frequencies switching.The embodiment of the present invention provides a kind of side of optimization alien frequencies handover delay Method, equipment.

On the one hand the embodiment of the present invention provides a kind of method of optimization alien frequencies handover delay, and the method includes:

User equipment sends A4 event measurement reports to evolution base station after postponing to specify the time, and the specified time is equal to above-mentioned The A4 event measurement report triggered times deduct measurement gap time delay;

Above-mentioned user equipment receives switching command, and the switching command is according to above-mentioned A4 affairs in above-mentioned evolution base station Report switches over what is sent under judgement successful instance.

Using technical scheme provided in an embodiment of the present invention, user equipment is in the existing A4 event measurement reports triggered time On deduct measurement gap time delay, can control to report A4 event measurement reports in advance, so that evolution base station judges that user sets During for meeting the condition of alien frequencies switching, switching command is issued in advance, reducing when evolution base station issues switching command and running into GAP patterns Probability, so as to reduce user equipment alien frequencies switching time delayses.

The embodiment of the present invention is on the other hand, there is provided a kind of method of optimization alien frequencies handover delay, the method include:

Evolution base station receives A4 event measurement reports, and the A4 event measurement reports are specified after the time by user equipment time delay Send, the specified time deducts measurement gap time delay equal to the above-mentioned A4 event measurement reports triggered time;

Above-mentioned evolution base station processes above-mentioned A4 event measurement reports and carries out switch decision, if adjudicating successfully, above-mentioned evolution Base station sends switching command to above-mentioned user equipment.

Using technical scheme provided in an embodiment of the present invention, user equipment is in the existing A4 event measurement reports triggered time On deduct measurement gap time delay, can control to report A4 event measurement reports in advance, so that evolution base station judges that user sets During for meeting the condition of alien frequencies switching, switching command is issued in advance, it is possible to reduce evolution base station runs into GAP when issuing switching command The probability of pattern, so as to reduce the time delayses of user equipment alien frequencies switching.

The embodiment of the present invention is on the other hand, there is provided a kind of user equipment.The user equipment includes:

First transmitter, the first transmitter is for evolution base station transmission A4 event measurement reports;

First receptor, first receptor are used to receive switching command, and the switching command is according to upper by evolution base station State A4 event measurement reports and switch over what is sent when adjudicating successfully;

First processor, the first processor are specified after the time to above-mentioned evolution for controlling above-mentioned first transmitter time delay Base station sends above-mentioned A4 event measurement reports, and the specified time deducts measurement equal to the A4 event measurement reports triggered time Gap time delay.

Using base station provided in an embodiment of the present invention, user equipment subtracted on the existing A4 event measurement reports triggered time Measurement gap time delay is gone, can control to report A4 event measurement reports in advance, so as to judge that user equipment meets different for base station During the condition of frequency switching, switching command can be issued, reduce the probability that GAP patterns are run into when base station issues switching command, so as to Reduce the time delayses of user equipment alien frequencies switching.

The embodiment of the present invention is on the other hand, there is provided a kind of base station.The base station includes:

Second receptor, second receptor be used for receive A4 event measurement reports, the A4 event measurement reports be by with What family equipment time delay was sent after specifying the time, the specified time was deducted between measurement equal to the above-mentioned A4 event measurement reports triggered time Gap time delay;

Second transmitter, the second transmitter is for above-mentioned user equipment transmission switching command;

Second processing device, the second processing device are used to process above-mentioned A4 event measurement reports and wake up with a start switch decision, when sentencing Certainly during success, control above-mentioned second transmitter and switching command is sent to above-mentioned user equipment.

Using base station provided in an embodiment of the present invention, user equipment subtracted on the existing A4 event measurement reports triggered time Measurement gap time delay is gone, can control to report A4 event measurement reports in advance, so as to judge that user equipment meets different for base station During the condition of frequency switching, switching command can be issued, reduce the probability that GAP patterns are run into when base station issues switching command, so as to Reduce the time delayses of user equipment alien frequencies switching.

Description of the drawings

System framework figures of the Fig. 1 for the embodiment of the present invention;

Fig. 2 is the schematic diagram of handoff procedure in LTE system provided in an embodiment of the present invention.

Fig. 3 is a kind of method flow schematic diagram of optimization alien frequencies handover delay that the embodiment of the present invention one is provided;

Fig. 4 is a kind of method flow schematic diagram of optimization alien frequencies handover delay that the embodiment of the present invention two is provided;

Fig. 5 is a kind of method flow schematic diagram of optimization alien frequencies handover delay that the embodiment of the present invention three is provided;

Fig. 6 is a kind of structural representation of user equipment that the embodiment of the present invention four is provided;

Fig. 7 is a kind of structural representation of base station that the embodiment of the present invention five is provided.

Specific embodiment

Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete Site preparation is described.Obviously, specific embodiment as described below is only a part of embodiment of the present invention, for those skilled in the art For member, the present invention can also be without sticking to the other embodiments of these specific details to implement.

The network frame of the LTE system that the embodiment of the present invention is based on, as shown in figure 1, access network is made up of eNB.Access Net provides the user plane and chain of command agreement of UE.Interaction between eNB passes through X2 interface.ENB is set by S1 interface kernel nets Standby connection, with mobile management entity (English is Mobility Management Entity, abbreviation MME) connects be specifically S1-MME, with gateway (English be Serving Gateway, referred to as S-GW) connect for S1-U.S1 interfaces are supported many To many MME/S-GW and eNB annexations.

The switching of UE in LTE system, according to Serving cell and the frequency relation of adjacent cell, can be divided into and switch with frequency Switch with alien frequencies.In LTE system, the handoff procedure of UE includes that handover measurement, switch decision and switching are performed.Handover measurement is by UE Complete with eNB.Switch decision is carried out in the enb.Switching is performed and is completed in the case where UE, eNB and MME are cooperated jointly.As shown in Fig. 2 In LTE system, " measurement control " of the handover measurement by access network (generally base station, but be not limited to base station) and between UE and The interaction of " measurement report " this two classes message is completing.Measurement control, is to access the measurement requirement that net side is handed down to UE.Measurement report Accuse, be, after UE is measured according to the measurement requirement in measurement control, to report the measurement result of access network.When UE uses event During the mode of measurement, UE carries out event evaluation according to event triggering criterion.When the event triggering criterion for accessing net side requirement meets When, UE sends measurement report message to net side is accessed.

In LTE system, A2 events are used for alien frequencies, the startup of isosystem measurement.When serving cell quality is specified less than system During thresholding, between UE and access net side, A2 events are triggered.A4 events are used for alien frequencies, different system and switch.When neighbor cell quality height When another thresholding that system is specified, UE triggers A4 events with net side is accessed.

Embodiments of the invention one, as shown in Figure 3, there is provided a kind of method of optimization alien frequencies handover delay.The method includes Herein below.

S11, when the adjacent cell quality that user equipment different-frequency measure is obtained is higher than system appointed threshold, the user equipment postpones A4 event measurement reports are sent to evolution base station after the specified time.The specified time is equal to the A4 event measurement report triggered times Deduct measurement gap time delay (such as GapToDelay).

S12, the user equipment receive switching command, are surveyed according to above-mentioned A4 events by above-mentioned evolution base station during the switching command What amount report was sent when making decisions successfully.

In the embodiment of the present invention one, user equipment carries out the adjacent cell quality of different-frequency measure, for LTE system, general logical Cross Reference Signal Received Power or Reference Signal Received Quality to be weighed.(for example reference signal is received the quality of adjacent cell Power or Reference Signal Received Quality) thresholding specified higher than system, triggers A4 events.In existing procedure, user equipment prolongs The slow A4 event measurement report triggered times are (for example:TimeToTrigger, after), A4 event measurement reports are sent to evolution base station. The A4 event measurement report triggered times are generally used for avoiding " pingpang handoff " problem in handoff procedure, delay time span Greatly.In the embodiment of the present invention one, measurement gap time delay is deducted on the existing A4 event measurement reports triggered time, can be in A4 On the basis of the event measurement report triggered time, the time that user equipment A4 event measurement reports are sent in advance is controlled.

Hereinafter with heretofore described similar procedure, such as unnecessarily repeat no more.

The technical scheme provided using the embodiment of the present invention one, was subtracted on the basis of the existing A4 measurement reports triggered time Go measurement gap time delay so that user equipment can report A4 event measurement reports in advance, so that evolution base station judges to use When family equipment meets the condition of alien frequencies switching, switching command is issued in advance, it is possible to reduce evolution base station is met when issuing switching command To the probability of GAP patterns, so as to reduce the time delayses of user equipment alien frequencies switching.

Embodiments of the invention two, as shown in Figure 4, there is provided a kind of method of optimization alien frequencies handover delay.The present invention is implemented Example two is may be considered on the basis of the embodiment of the present invention one to measurement gap time delay there is provided some specific embodiment party Formula, above-mentioned measurement gap time delay process the time of different-frequency measure and/or above-mentioned evolution with reference to above-mentioned user equipment by evolution base station Base station processes the time of A4 event measurement reports and determines.

In an implement scene of the embodiment of the present invention, above-mentioned measurement gap time delay refers to above-mentioned user by evolution base station Equipment processes the time of different-frequency measure and/or above-mentioned evolution base station processes the time of A4 event measurement reports and determines, including:

S21, evolution base station processes the time of different-frequency measure with above-mentioned user equipment and/or above-mentioned evolution base station processes above-mentioned On the basis of the time of A4 event measurement reports, hunting zone is set.

S22, if the time value for meeting alien frequencies handover delay requirement is searched in above-mentioned hunting zone, above-mentioned evolution base station Above-mentioned measurement gap time delay is set to into the time value for meeting alien frequencies handover delay requirement.

For example, user equipment can be processed the time of different-frequency measure by evolution base station and above-mentioned evolution base station processes A4 events The temporal summation of measurement report.(such as 0 in 100ms the regular hour to be increased or decreased as needed by this with the basis of A certain number) after result as hunting zone border.In this hunting zone, when can arrange one in advance initially Between be worth, by this initial time value temporarily as measurement gap time delay, perform the action in embodiment of the method one, if final different The time delay of frequency switching is unsatisfactory for the time value of alien frequencies handover delay requirement, then increase or decrease in the hunting zone this it is initial when Between be worth, using this initial time value for increasing or decreasing again as measurement gap time delay, and perform in embodiment of the method one Action, when till finding the time value for meeting alien frequencies handover delay requirement, this initial time value after this adjustment can Being measurement gap time delay.Measurement gap time delay is determined according to this method, which can be a value, or certain limit Value.

Used as an example, said reference can also be that user equipment is processed at time or the evolution base station of different-frequency measure The time of reason A4 event measurement reports.

The technical scheme that the embodiment of the present invention two is provided, specifically discloses this on the basis of embodiments of the invention one An example of measurement gap time delay is determined in bright embodiment one.

The technical scheme provided using the embodiment of the present invention two, was subtracted on the basis of the existing A4 measurement reports triggered time Go measurement gap time delay so that user equipment can report A4 event measurement reports in advance, so that evolution base station judges to use When family equipment meets the condition of alien frequencies switching, switching command is issued in advance, it is possible to reduce evolution base station is met when issuing switching command To the probability of GAP patterns, so as to reduce the time delayses of user equipment alien frequencies switching.

Embodiments of the invention three, as shown in Figure 5, there is provided a kind of method of optimization alien frequencies handover delay.The present invention is implemented Example three may be considered and further provide some more specifically on the basis of the embodiment of the present invention one or embodiment two Embodiment, for the embodiment of the present invention one or identical part described in the embodiment of the present invention two, can refer to above-described embodiment one Described in, the embodiment of the present invention three is repeated no more.The embodiment of the present invention three includes herein below.

S31, user equipment send A2 event measurement reports to evolution base station.Above-mentioned A2 event measurement reports carry the user Equipment processes the time of different-frequency measure.

The quality of the Serving cell that user equipment is located, will triggering A2 events less than the thresholding that system is specified.User equipment The quality of current service cell can be reported to evolution base station.

S32, above-mentioned user equipment receive measurement control message.

The measurement control message is carried out with postponing transmission according to above-mentioned A2 event measurement reports by above-mentioned evolution base station.Should Measurement control message carries measurement gap time delay.The measurement gap time delay can be by evolution base station with reference to user equipment process The time of different-frequency measure and evolution base station process the time of A4 event measurement reports and determine.The enforcement of the present invention is can be found in specifically Described in example two.

S33, according to above-mentioned measurement control message, start clearance mode carries out different-frequency measure to above-mentioned user equipment, when above-mentioned When the adjacent cell quality that above-mentioned clearance mode different-frequency measure is obtained is higher than the thresholding that system is specified, above-mentioned user sets user equipment It is standby postpone the above-mentioned specified time after send above-mentioned A4 event measurement reports to above-mentioned evolution base station.

Above-mentioned user equipment is configured to the related parameter that has of gap (GAP) pattern according to above-mentioned measurement control message, example Such as the cycle in gap, the duration in gap etc..When above-mentioned user equipment carries out the adjacent cell quality (example of different-frequency measure in clearance mode Such as:Reference Signal Received Quality or Reference Signal Received Power) thresholding specified higher than system, above-mentioned user equipment postpones to specify After time, A4 event measurement reports are sent to evolution base station.The above-mentioned specified time subtracted equal to the A4 event measurement report triggered times Go above-mentioned measurement gap time delay.

S34, above-mentioned user equipment receive the switching command sent by above-mentioned evolution base station.

Result of the above-mentioned evolution base station according to A4 event measurement reports, judges whether above-mentioned user equipment meets switching bar Part.When above-mentioned evolution base station judges that above-mentioned user equipment meets switching condition, above-mentioned evolution base station is under above-mentioned user equipment Send out switching command.When above-mentioned evolution base station judges that above-mentioned user equipment is unsatisfactory for switching condition (such as adjacent cell resource is unavailable) When, above-mentioned evolution base station waits the A4 events that clearance mode measurement next time is reported, until above-mentioned evolution base station judge it is above-mentioned Till user equipment meets switching condition.

In the embodiment of the present invention three, user equipment carries out the adjacent cell quality of different-frequency measure, for LTE system, general logical Cross Reference Signal Received Power or Reference Signal Received Quality to be weighed.(for example reference signal is received the quality of adjacent cell Power or Reference Signal Received Quality) thresholding specified higher than system, triggers A4 events.In existing handling process, user Equipment postpones the A4 event measurement report triggered times (for example:TimeToTrigger, after), A4 events can be sent to evolution base station and is surveyed Amount report.The A4 event measurement report triggered times are generally used for avoiding " pingpang handoff " problem in handoff procedure, time delay Time span is big.In the embodiment of the present invention three, user equipment can be deducted on the basis of the A4 event measurement report triggered times Measurement gap time delay so that user equipment reports A4 event measurement reports in advance, so that evolution base station judges user equipment When meeting the condition of alien frequencies switching, switching command is issued in advance, it is possible to reduce evolution base station runs into GAP moulds when issuing switching command The probability of formula, so as to reduce the time delayses of user equipment alien frequencies switching.

Embodiments of the invention four and embodiment five are the corresponding device embodiments of embodiment of the method, for embodiment of the method In illustrated, can refer to embodiment of the method and illustrate accordingly, the embodiment of the present invention four and embodiment five repeat no more.

Embodiments of the invention four, as shown in Figure 6, there is provided a kind of user equipment 40, including:

First transmitter 401, the first transmitter 401 is for evolution base station transmission A4 event measurement reports.

First receptor 402, first receptor 402 are used to receive switching command.The switching command is by above-mentioned evolution What base station was sent when switching over and adjudicate successfully according to the A4 event measurement reports.

First processor 403, the first processor 403 are specified after the time upwards for controlling above-mentioned first transmitter time delay State evolution base station and send above-mentioned A4 event measurement reports, the specified time is equal to the triggering of above-mentioned A4 event measurement reports and deducts survey The time delay of measurement gap.

In an implement scene of the embodiment of the present invention, above-mentioned measurement gap time delay is by above-mentioned evolution base station with reference to above-mentioned User equipment processes the time of different-frequency measure and/or above-mentioned evolution base station processes the time of above-mentioned A4 event measurement reports and true It is fixed, specifically include:

Evolution base station processes the time of different-frequency measure with user equipment and/or above-mentioned evolution base station processes above-mentioned A4 events and surveys On the basis of the time of amount report, hunting zone is set;If searching in above-mentioned hunting zone and meeting alien frequencies handover delay requirement Above-mentioned measurement gap time delay is set to the above-mentioned time value for meeting alien frequencies handoff delay requirement by time value, above-mentioned evolution base station, Detailed process can be found in embodiment of the method.

Above-mentioned first transmitter 401 is additionally operable to send A2 event measurement reports to above-mentioned evolution base station, and above-mentioned A2 events are surveyed Amount report carries the time that above-mentioned user equipment processes different-frequency measure;Above-mentioned first receptor 402 is additionally operable to receive measurement control Message, the measurement control message are carried out with postponing transmission according to above-mentioned A2 event measurement reports by above-mentioned evolution base station, the survey Amount control message carries above-mentioned measurement gap time delay;Above-mentioned first processor 403 is additionally operable to according to above-mentioned measurement control message, is opened Dynamic clearance mode carries out different-frequency measure, when above-mentioned user equipment is higher than to be in the adjacent cell quality of above-mentioned clearance mode different-frequency measure During system appointed threshold, above-mentioned first processor 403 controls above-mentioned first transmitter and postpones the backward evolution of the specified time Base station sends the A4 event measurement reports.

The user equipment 40 that the embodiment of the present invention four is provided can perform the embodiment of the present invention one, embodiment two or implement The action that user equipment is performed in method described in example three, specifically can refer to the description in said method embodiment.Above-mentioned user Equipment 40 is included outside first transmitter 401, the first receptor 402 and first processor 403, in being implementation method embodiment Action performed by user equipment, can also include some structures.The non-limiting example of this class formation can include memorizer, Circuit of microprocessor and sending signal etc..

Using user equipment provided in an embodiment of the present invention, user equipment can be triggered in existing A4 event measurement reports Measurement gap time delay is deducted on the basis of time so that A4 event measurement reports can be reported in advance, so that evolution base station When judging that user equipment meets the condition of alien frequencies switching, switching command can be issued in advance, reduce evolution base station and issue switching life The probability of GAP patterns is run into when making, so as to reduce the time delayses of user equipment alien frequencies switching.

Embodiments of the invention five, as shown in Figure 7, there is provided a kind of base station 50, including:

Second receptor 501, second receptor 501 are used to receive A4 event measurement reports, the A4 event measurement reports Send after the time is specified by user equipment time delay, the above-mentioned specified time subtracted equal to the above-mentioned A4 event measurement reports triggered time Go measurement gap time delay.

Second transmitter 502, the second transmitter 502 is for above-mentioned user equipment transmission switching command.

Second processing device 503, the second processing device 503 are used to process above-mentioned A4 event measurement reports and switch over to sentence Certainly, when adjudicating successfully, control above-mentioned second transmitter 502 and switching command is sent to above-mentioned user equipment.

In an implement scene of the embodiment of the present invention, above-mentioned second processing device 503 can be additionally used in referring to user equipment The time and/or above-mentioned second processing device 503 for processing different-frequency measure process the time of above-mentioned A4 event measurement reports and on determining Measurement gap time delay is stated, is specifically included:

Above-mentioned second processing device 503 processes the time of different-frequency measure with above-mentioned user equipment and/or above-mentioned base station 50 is processed On the basis of the time of above-mentioned A4 event measurement reports, hunting zone is set;Cut if searching in the hunting zone and meeting alien frequencies The time value of delay requirement is changed, above-mentioned measurement gap time delay is set to above-mentioned meet alien frequencies handoff delay requirement by the evolution base station Time value, specifically can be found in embodiment of the method

In an implement scene of the embodiment of the present invention, above-mentioned second receptor 501 is additionally operable to receive A2 affairs Report, above-mentioned A2 event measurement reports carry the time that above-mentioned user equipment processes different-frequency measure;Above-mentioned second transmitter 502 is also For sending above-mentioned measurement control message to above-mentioned user equipment, above-mentioned measurement control message carries above-mentioned measurement gap time delay; Above-mentioned second processing device is additionally operable to according to A2 event measurement reports configuration measurement control message.

The base station 50 that the embodiment of the present invention five is provided is performing institute in the embodiment of the present invention one, embodiment two or embodiment three The action of evolution base station execution in method is stated, the description in said method embodiment is specifically can be found in.Above-mentioned base station 50 includes Outside two receptors 501, second transmitter 502 and second processing device 503, held by the evolution base station in implementation method embodiment Capable action, can also include some structures.The non-limiting example of this class formation can include memorizer, microprocessor and send out Circuit for the number of delivering letters etc..

Using base station provided in an embodiment of the present invention, user equipment can be in the existing A4 event measurement reports triggered time On the basis of deduct measurement gap time delay so that user equipment can report A4 event measurement reports in advance, so that base station When judging that user equipment meets the condition of alien frequencies switching, switching command can be issued, reduce when base station issues switching command and run into The probability of GAP patterns, so as to reduce the time delayses of user equipment alien frequencies switching.

Embodiments of the invention six, there is provided a kind of system for realizing optimizing alien frequencies handover delay, the system include:Such as this The base station described in user equipment and the embodiment of the present invention five described in bright example IV.

Using system provided in an embodiment of the present invention, user equipment can be on the basis in A4 event measurement report triggered times On deduct measurement gap time delay so that user equipment can report A4 event measurement reports in advance so that base station judge use When family equipment meets the condition of alien frequencies switching, switching command can be issued, reduce when base station issues switching command and run into GAP patterns Probability, so as to reduce user equipment alien frequencies switching time delayses.

A kind of embodiments of the invention seven, there is provided computer program.The computer program is included such as the present invention The code of all or part of method described in embodiment one, the embodiment of the present invention two or the embodiment of the present invention three;For example, the meter Calculation machine program product can perform one or more of following method:

1st, a kind of method of optimization alien frequencies handover delay, including:

User equipment sends A4 event measurement reports to evolution base station after postponing to specify the time, and the specified time is equal to institute Stating the A4 event measurement report triggered times deducts measurement gap time delay;

The user equipment receives switching command, and the switching command is surveyed in the evolution base station process A4 events What amount report was sent in the case of switching over judgement successfully.

2nd, the method as described in 1, the measurement gap time delay process different with reference to the user equipment by the evolution base station The time of frequency measurement and/or the evolution base station process the time of the A4 event measurement reports and determine.

3rd, the method as described in 2, the measurement gap time delay processes different with reference to the user equipment by the evolution base station The time of frequency measurement and/or the evolution base station process the time of the A4 event measurement reports and determine, including:

The evolution base station processes the time of different-frequency measure with the user equipment and/or the evolution base station processes described On the basis of the time of A4 event measurement reports, hunting zone is set;

If the time value for meeting alien frequencies handover delay requirement is searched in the hunting zone, the evolution base station is by institute State measurement gap time delay and be set to the time value for meeting alien frequencies handoff delay requirement.

4th, the method as described in 1 to 3 any one, the user equipment postpone the backward evolution base of the specified time Stand before the transmission A4 event measurement reports, also include:

The user equipment sends A2 event measurement reports to the evolution base station, and the A2 event measurement reports carry institute State the time that user equipment processes different-frequency measure;

The user equipment receives measurement control message, and the measurement control message is by the evolution base station according to the A2 Event measurement report is carried out with transmission is postponed, and the measurement control message carries the measurement gap time delay;

According to the measurement control message, start clearance mode carries out different-frequency measure to the user equipment, as the user When the adjacent cell quality of the clearance mode different-frequency measure is higher than system appointed threshold, the user equipment postpones described equipment The A4 event measurement reports are sent to the evolution base station after the specified time.

Again for example, the computer program can also carry out one or more of following method:

5th, a kind of method of optimization alien frequencies handover delay, including:

Evolution base station receives A4 event measurement reports, and the A4 event measurement reports are to specify the time by user equipment time delay Send afterwards, the specified time deducts measurement gap time delay equal to the A4 event measurement reports triggered time;

The evolution base station processes the A4 event measurement reports and carries out switch decision, if adjudicating successfully, the evolution Base station sends switching command to the user equipment.

6th, the method as described in 5, the measurement gap time delay process different with reference to the user equipment by the evolution base station The time of frequency measurement and/or the evolution base station process the time of the A4 event measurement reports and determine.

7th, the method as described in 6, the measurement gap time delay process different with reference to the user equipment by the evolution base station The time of frequency measurement and/or the evolution base station process the time of the A4 event measurement reports and determine, including:

The evolution base station processes the time of different-frequency measure with the user equipment and/or the evolution base station processes described On the basis of the time of A4 event measurement reports, hunting zone is set;

If the time value for meeting alien frequencies handover delay requirement is searched in the hunting zone, the evolution base station is by institute State measurement gap time delay and be set to the time value for meeting alien frequencies handoff delay requirement.

8th, the method as described in 5 to 7 any one, the evolution base station receive A4 events receive A4 event measurement reports it Before, also include:

Evolution base station receives A2 event measurement reports, and the A2 event measurement reports carry the user equipment and process alien frequencies The time of measurement;

The evolution base station is according to A2 event measurement reports configuration measurement control message, and the measurement control is disappeared Breath is sent to the user equipment, and the measurement control message carries the measurement gap time delay.

The code that computer program provided in an embodiment of the present invention is performed, user equipment can be in A4 affair reports Measurement gap time delay is deducted on the basis of accusing the triggered time so that user equipment can report A4 event measurement reports in advance, from And when causing base station to judge that user equipment meets the condition of alien frequencies switching, switching command can be issued, reduce base station and issue switching The probability of GAP patterns is run into during order, so as to reduce the time delayses of user equipment alien frequencies switching.

In certain embodiments, for well known method, interface, equipment signaling technology are not specifically described, Yi Mianyin Unnecessary details causes the present invention fuzzy.One of ordinary skill in the art will appreciate that complete in realizing above-described embodiment method Portion or part steps can be by program to indicate the hardware of correlation to complete, and described program can be stored and a calculating In machine readable storage medium storing program for executing, described storage medium, such as:Read-only memory (Read-only Memory, ROM) is random Storage memory (Random Access Memory, RAM), magnetic disc, CD etc..

Above-described specific embodiment, has been carried out further to the purpose of the present invention, technical scheme and beneficial effect Describe in detail, the be should be understood that specific embodiment that the foregoing is only the present invention is not intended to limit the present invention Protection domain, those skilled in the art on the basis of creative work is not paid, any modification for being made, equivalent, Improve etc., should be included within the scope of the present invention.

Claims (12)

1. it is a kind of optimization alien frequencies handover delay method, it is characterised in that
User equipment sends A4 event measurement reports to evolution base station after postponing to specify the time, and the specified time is equal to the A4 The event measurement report triggered time deducts measurement gap time delay, and the measurement gap time delay refers to the use by the evolution base station Family equipment processes the time of different-frequency measure and/or the evolution base station processes the time of A4 event measurement reports and determines;
The user equipment receives switching command, and the switching command is A4 affairs report described in evolution base station process What announcement was sent in the case of switching over judgement successfully.
2. the method for claim 1, it is characterised in that the measurement gap time delay is by the evolution base station with reference to described User equipment processes the time of different-frequency measure and/or the evolution base station processes the time of the A4 event measurement reports and true It is fixed, including:
The evolution base station processes the time of different-frequency measure with the user equipment and/or the evolution base station processes the A4 things On the basis of the time of part measurement report, hunting zone is set;
If the time value for meeting alien frequencies handover delay requirement is searched in the hunting zone, the evolution base station is by the survey Amount gap time delay is set to the time value for meeting alien frequencies handoff delay requirement.
3. method as claimed in claim 1 or 2, it is characterised in that the user equipment postpone the specified time after to institute Before stating the evolution base station transmission A4 event measurement reports, also include:
The user equipment sends A2 event measurement reports to the evolution base station, and the A2 event measurement reports carry the use Family equipment processes the time of different-frequency measure;
The user equipment receives measurement control message, and the measurement control message is by the evolution base station according to the A2 events Measurement report is carried out with transmission is postponed, and the measurement control message carries the measurement gap time delay;
According to the measurement control message, start clearance mode carries out different-frequency measure to the user equipment, when the user equipment When the adjacent cell quality of the clearance mode different-frequency measure is higher than system appointed threshold, the user equipment postpones described specifying The A4 event measurement reports are sent to the evolution base station after time.
4. it is a kind of optimization alien frequencies handover delay method, it is characterised in that
Evolution base station receives A4 event measurement reports, and the A4 event measurement reports are to be specified send out after the time by user equipment time delay Send, the specified time deducts measurement gap time delay, the measurement gap equal to the A4 event measurement reports triggered time Time delay processes the time of different-frequency measure with reference to the user equipment by the evolution base station and/or the evolution base station processes A4 things The time of part measurement report and determine;
The evolution base station processes the A4 event measurement reports and carries out switch decision, if adjudicating successfully, the evolution base station Switching command is sent to the user equipment.
5. method as claimed in claim 4, it is characterised in that the measurement gap time delay is by the evolution base station with reference to described User equipment processes the time of different-frequency measure and/or the evolution base station processes the time of the A4 event measurement reports and true It is fixed, including:
The evolution base station processes the time of different-frequency measure with the user equipment and/or the evolution base station processes the A4 things On the basis of the time of part measurement report, hunting zone is set;
If the time value for meeting alien frequencies handover delay requirement is searched in the hunting zone, the evolution base station is by the survey Amount gap time delay is set to the time value for meeting alien frequencies handoff delay requirement.
6. the method as described in claim 4 or 5, it is characterised in that the evolution base station receives A4 events and receives A4 events to be surveyed Before amount report, also include:
Evolution base station receives A2 event measurement reports, and the A2 event measurement reports carry the user equipment and process different-frequency measure Time;
The evolution base station is according to A2 event measurement reports configuration measurement control message, and the measurement control message is sent out The user equipment is given, the measurement control message carries the measurement gap time delay.
7. a kind of user equipment, it is characterised in that include:
First transmitter, the first transmitter is for evolution base station transmission A4 event measurement reports;
First receptor, first receptor are used to receive switching command, and the switching command is to process institute by evolution base station State A4 event measurement reports and carry out what is sent during switch decision success;
First processor, the first processor are used to control the first transmitter time delay specified time backward evolution base Stand and send the A4 event measurement reports, the specified time was deducted between measurement equal to the A4 event measurement reports triggered time Gap time delay, the measurement gap time delay by the evolution base station with reference to the user equipment process different-frequency measure time and/or The evolution base station processes the time of A4 event measurement reports and determines.
8. user equipment as claimed in claim 7, it is characterised in that the measurement gap time delay is referred to by the evolution base station The user equipment processes the time of different-frequency measure and/or the evolution base station process the A4 event measurement reports time and It is determined that, including:
The evolution base station processes the time of different-frequency measure with the user equipment and/or the evolution base station processes the A4 things On the basis of the time of part measurement report, hunting zone is set;
If the time value for meeting alien frequencies handover delay requirement is searched in the hunting zone, the evolution base station is by the survey Amount gap time delay is set to the time value for meeting alien frequencies handoff delay requirement.
9. user equipment as claimed in claim 7 or 8, it is characterised in that
The first transmitter is additionally operable to send A2 event measurement reports to the evolution base station, and the A2 event measurement reports are taken The time of different-frequency measure is processed with the user equipment;
First receptor is additionally operable to receive measurement control message, and the measurement control message is by the evolution base station according to institute Stating A2 event measurement reports is carried out with transmission is postponed, and the measurement control message carries the measurement gap time delay;
The first processor is additionally operable to according to the measurement control message, and starting clearance mode carries out different-frequency measure, when described User equipment the clearance mode different-frequency measure adjacent cell quality be higher than system appointed threshold when, the first processor control Make after the user equipment postpones the specified time A4 event measurement reports are sent to the evolution base station.
10. a kind of base station, it is characterised in that include:
Second receptor, second receptor are used to receive A4 event measurement reports, the A4 event measurement reports be by with What family equipment time delay was sent after specifying the time, the specified time deducts measurement equal to the A4 event measurement reports triggered time Gap time delay;
Second transmitter, the second transmitter is for user equipment transmission switching command;
Second processing device, the second processing device are used to process the A4 event measurement reports and carry out switch decision, work as judgement When successful, control the second transmitter and the switching command is sent to the user equipment;
The second processing device is additionally operable to process the time of different-frequency measure and/or the second processing device with reference to the user equipment Process the time of the A4 event measurement reports and determine the measurement gap time delay.
11. base stations as claimed in claim 10, it is characterised in that the second processing device is additionally operable to reference to the user equipment The time and/or the second processing device for processing different-frequency measure processes the time of the A4 event measurement reports and determines the survey Amount gap time delay, including:
The second processing device processes the time of different-frequency measure with the user equipment and/or the base station processes the A4 events On the basis of the time of measurement report, hunting zone is set;
If the time value for meeting alien frequencies handover delay requirement is searched in the hunting zone, the base station is by between the measurement Gap time delay is set to the time value for meeting alien frequencies handoff delay requirement.
12. base stations as described in claim 10 or 11, it is characterised in that
Second receptor is additionally operable to receive A2 event measurement reports, and the A2 event measurement reports carry the user equipment Process the time of different-frequency measure;
The second processing device is additionally operable to according to A2 event measurement reports configuration measurement control message;
The second transmitter is additionally operable to send the measurement control message to the user equipment, and the measurement control message is taken With the measurement gap time delay.
CN201280000274.XA 2012-01-11 2012-01-11 A kind of method and apparatus of optimization alien frequencies handover delay CN103503517B (en)

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CN105828337A (en) 2014-09-17 2016-08-03 中兴通讯股份有限公司 Method and device for dynamically building virtual cell
CN106559804A (en) * 2015-09-24 2017-04-05 中国移动通信集团公司 Isosystem measurement optimization method and device, user equipment

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