CN101043697A - Method for obtaining measurement gap in isofrequency, isosystem measurement - Google Patents
Method for obtaining measurement gap in isofrequency, isosystem measurement Download PDFInfo
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- CN101043697A CN101043697A CNA2006100346166A CN200610034616A CN101043697A CN 101043697 A CN101043697 A CN 101043697A CN A2006100346166 A CNA2006100346166 A CN A2006100346166A CN 200610034616 A CN200610034616 A CN 200610034616A CN 101043697 A CN101043697 A CN 101043697A
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Abstract
The method for obtaining idle slot in abnormal frequency and abnormal system comprises: UE sends parameter to measure the idle slot to NS, the latter determines the measuring idle slot according to the parameter message, and sends to UE. This invention can keep synchronization for NS and UE in LTE framework, and makes the network send the measuring idle slot more properly.
Description
Technical field
The invention belongs to moving communicating field, relate in particular to and obtain the method for measuring the space in alien frequencies, the isosystem measurement process.
Background technology
In 3GPP TSG RAN#26 meeting, passed through research project " Evolved UTRA andUTRAN " and be Long Term Evolution (Long Term Evolution, LTE).LTE inserts (Universal Terrestrial Radio Access about universal terrestrial radio, UTRA) and Universal Terrestrial Radio Access Network road (Universal Terrestrial Radio Access Network, UTRAN) evolution is to comprising the whole network evolution of core net.It has comprised wave point and wireless network architecture part, has removed circuit domain with comparing in the past, has only packet domain, and its voice service part will be realized by VoIP.
In mobile communication system, (system requirements UE can switch between adjacent cell for User Equipment, mobility UE) or other reasons owing to subscriber equipment.In order to realize switching smoothly, UE must perception before switching may become the signal quality of the sub-district of switching target, signal quality that promptly can measure neighbor cells.System is at first by coming measurement behavior and the measurement standard of standard UE to the mode of UE sending measuring control messages (MEASUREMENT CONTROL) at network side (UTRAN), UE reports network side with the result of coincidence measurement standard in the mode of measurement report (MEASUREMENT REPROT), make handover decisions for system, as shown in Figure 1.
In said process, measuring process is the part of whole switching flow, mainly comprises network side sending measuring control, and UE measures, and will satisfy the sub-district of measuring the condition that sets in the control and offer network side with measurement report in form.According to the difference of the attribute of source related in the handoff procedure, purpose sub-district, have with frequently, three kinds of different switching types such as alien frequencies and the switching of different system, different switching types requires UE to adopt different measurement behaviors.
For common frequency measurement, UE can with network service in measure the signal quality of homogeneous frequency adjacent area, i.e. common frequency measurement process and do not require the data communication process of interruption U E and network.For alien frequencies, isosystem measurement, because the frequency range of alien frequencies, the employed frequency range of different system cell and the presently used sub-district of UE that need measure is inconsistent, for the UE that does not have two cover transceivers, UE must interrupt current and data communication network, again the operating frequency of transceiver is adjusted to the alien frequencies, the employed frequency range of different system cell that need measurement, again the operating frequency of transceiver is adjusted to the frequency range of presently used sub-district after measurement a period of time, so repeatedly, finish until measuring process.
In the above-mentioned measuring process, UE need vacate the time that is used to measure in data transmission procedure.In order to be reduced to minimum degree to the influence of data transmission procedure, whole measuring process is not one step completed, but utilizes a plurality of spaces in the transmission course, promptly measures the space.
At present Wideband Code Division Multiple Access (WCDMA) (Wideband Code Division Multiple Access, WCDMA) in the system, the method of measuring the space and being by compact model realizes, the realization of compact model mainly contains that spreading factor reduces by half, punching and three kinds of methods of high-level scheduling.Because the physical-layer techniques that the LTE framework adopts is different fully with WCDMA, therefore, can not obtain the measurement time slot by the compact model method.
In existing measurement space scheme, mainly contain by UE and determine to measure the space fully and measure the space dual mode by complete network decision at LTE.In this dual mode, lack mutual between network and the UE, objectively reduced space interface signaling, but when determining to measure the space fully by UE, network can't know that UE carries out the degree of alien frequencies, isosystem measurement, simultaneously can't guarantee both coordinations on transfer of data, thereby the loss situation of data might take place; If measure the space by complete network decision, then the ability of UE possibly can't satisfy, and it is also not accurate enough that opportunity in space is measured in the startup that provides of network in addition.
Summary of the invention
The object of the present invention is to provide a kind of method of measuring the space of obtaining, be intended to solve in the measurement space scheme that exists in the prior art,, influence the efficient of handover measurement and the problem of accuracy owing to lack alternately between network and the UE at LTE.
The present invention realizes like this, obtain the method for measuring the space in a kind of alien frequencies, the isosystem measurement, UE sends to network side and measures space decision parameter information, and network side obtains the measurement space that is used for alien frequencies, isosystem measurement according to described measurement space decision parameter information, is handed down to UE.
Described method comprises the steps:
A. network side comprises in the described measuring control information and measures the enabling gate limit information to the control information of UE sending measuring;
B.UE measures the signal quality of current area, if satisfying described measurement, the signal quality of current area starts thresholding, send measurement report to network side, comprise in the described measurement report and measure space decision parameter information, comprise in the described measurement space decision parameter information that the signal quality of current area satisfies the notice that described measurement starts thresholding;
C. judgement starts when measuring network side according to described measurement space decision parameter information, to UE echo reply message, comprise in the described response message starting the indication information of measuring, and the measurement space that is used for alien frequencies, isosystem measurement that provides of network side.
Described measurement space decision parameter information further comprises the work state information of UE, the ability information of UE or the measurement space that is used for alien frequencies, isosystem measurement that UE provides.
The measuring sequence information that further comprises different system in the described response message.
If alien frequencies, isosystem measurement control information are handed down to UE by system message, further comprise the modification information of alien frequencies, isosystem measurement control information in the described response message.
If alien frequencies, isosystem measurement control information are not handed down to UE, further comprise alien frequencies, isosystem measurement control information in the described response message.
Described measuring control information is carried by the measurement control messages in the system message that issues in broadcast channel or at the special measuring controlling message that shared channel issues.
Described method further comprises the step of UE periodicity to the network side reporting measurement reports.
Described step C further comprises:
Judgement does not start when measuring network side according to described measurement space decision parameter information, to UE echo reply message, comprises the indication information that does not start measurement in the described response message.
The present invention is auxiliary by UE, the mode of network decision is obtained and measured the space, makes that network side and UE can keep synchronously effectively in the measuring process under the LTE framework, make simultaneously network can the only time to the UE sending measuring gap.
Description of drawings
Fig. 1 is the realization flow figure that switches in the prior art;
Fig. 2 is the realization flow figure that measures the space that obtains provided by the invention.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
The present invention adopts that UE is auxiliary, the mode of network decision is obtained and measured the space, simultaneously by introduce the auxiliary method of UE make network the only time to the UE sending measuring gap.
Fig. 2 shows the realization flow of handover measurement provided by the invention, and details are as follows:
1. network side sends measuring control information by measurement control messages (utilizing broadcast channel) in the system message or special measuring controlling message (utilizing shared channel) to UE, comprises in the measuring control information measuring starting thresholding, handoff threshold and other measurement control reference informations.Typically, measure startup thresholding and handoff threshold and can pass through event mode, represent that as incident A the signal quality of the presently used sub-district of UE is lower than certain thresholding, incident B represents that the signal quality of the presently used sub-district of UE is higher than certain thresholding.
2.UE after Radio Resource connects (RRC) or professional connection foundation, start measurement to the signal quality of presently used sub-district.
3. if the UE signal quality that detects presently used sub-district satisfies the standard of A incident defined, then send the measurement report of A incident to network side, the A incident has taken place in the informing network side.UE can also comprise other measurement space decision parameter informations that offer network side in the measurement report that network side sends, the work state information that optionally comprises UE, the state (DRX/DTX cycle) of for example current DTX (discontinuous emission)/DRX (discontinuous reception); The ability information of UE can be supported frequency range ability, professional ability of which different system, UE etc. as UE; The perhaps possible alien frequencies that provides according to self state of UE, the measurement space of different system are for the network side reference.Certainly, network side also can pass through other modes, as requires UE to report etc. to obtain above-mentioned measurement space decision parameter information.
UE utilizes the signal quality of the event notification network side current area in the measurement report to begin to worsen, and explanation can begin the measurement of alien frequencies, different system.The measurement space that the ability of DRX/DTX cycle, UE or UE provide is measured the space for the network side decision essential parameter is provided.
In said process, owing to be resource-sharing in LTE, UE sends when carrying the measurement report of measuring space decision parameter information to network side, needs the application ascending resource, if the UE application is less than ascending resource then can't send measurement report to network side.Therefore, the present invention sets timer at the UE end, if timer expiry, UE has applied for being used to send the ascending resource of measurement report, then continues follow-up flow process; If also do not apply for being used to send the ascending resource of measurement report, then UE will decide in its sole discretion and whether start alien frequencies, isosystem measurement, if start, then adopt the measurement space that self determines.
4. after network side was received the measurement report of UE, whether decision started alien frequencies, isosystem measurement according to factors such as the ability of UE, current business, to UE echo reply message.Comprise the indication information that whether starts alien frequencies, isosystem measurement in the response message.
5. if start different-frequency measure, then network side is provided for the measurement space of different-frequency measure to UE, if start isosystem measurement, then is provided for the measurement space of each the different system that can measure.
Owing to may have a plurality of different systems,, therefore also can relate to measuring sequence as UTRAN, GPRS (GPRS), global system for mobile communications (GSM) or micro-wave access global inter communication (WiMAX) etc.In the present invention, a kind of mode is to measure the order of different different systems by the judgement of factors such as the service attribute of network based current UE, ability, and arranges according to sequencing in message; Another kind of mode is that network does not provide measuring sequence, but decides measuring sequence in its sole discretion by the UE basis.Certainly, system can provide the various combination of isosystem measurement order according to factors such as service attributes, agreement as network and UE both sides' acquiescence, press the order of GSM/GPRS/UTRAN/WiMAX as speech business, mobile IP service is according to the order of WiMAX/UTRAN/GPRS/GSM, and the order of UTRAN/WiMAX/GPRS/GSM is pressed in data service.
Network side is packaged into response message with above-mentioned information and returns UE.If alien frequencies, isosystem measurement control information are handed down to UE by system message, then also may comprise whether needing alien frequencies, isosystem measurement control information are made an amendment in the response message, and make which modification.If alien frequencies, isosystem measurement control information do not issue as yet, then should comprise alien frequencies, isosystem measurement control information in the response message.
6.UE receive after the message measurement according to message content decision whether startup alien frequencies, different system, if started the measurement of alien frequencies, different system, and detect the measurement event that satisfies defined standard in the control of alien frequencies, isosystem measurement and take place, then reporting measurement reports is given network side, comprise pairing measurement type, event result and measurement result in the measurement report, use for the network side decision-making.If UE detects the standard that the signal quality of Target cell satisfies B incident defined, then report the measurement report that comprises the B incident to network side.
7. network side is after receiving the measurement report of UE, initiates to discharge or the alien frequencies that stops having existed, the Indication message of isosystem measurement control to UE, and UE will stop alien frequencies, isosystem measurement after receiving Indication message.At this moment, network side also can issue switching command to UE, and indication UE switches.
In the present invention, UE also can be periodically to the network side reporting measurement reports.
The above only is preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of being done within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1, obtains the method for measuring the space in a kind of alien frequencies, the isosystem measurement, it is characterized in that, user equipment (UE) sends to network side and measures space decision parameter information, and network side obtains the measurement space that is used for alien frequencies, isosystem measurement according to described measurement space decision parameter information, is handed down to UE.
2, the method for claim 1 is characterized in that, described method comprises the steps:
A. network side comprises in the described measuring control information and measures the enabling gate limit information to the control information of UE sending measuring;
B.UE measures the signal quality of current area, if satisfying described measurement, the signal quality of current area starts thresholding, send measurement report to network side, comprise in the described measurement report and measure space decision parameter information, comprise in the described measurement space decision parameter information that the signal quality of current area satisfies the notice that described measurement starts thresholding;
C. judgement starts when measuring network side according to described measurement space decision parameter information, to UE echo reply message, comprise in the described response message starting the indication information of measuring, and the measurement space that is used for alien frequencies, isosystem measurement that provides of network side.
3, method as claimed in claim 2 is characterized in that, described measurement space decision parameter information further comprises the work state information of UE, the ability information of UE or the measurement space that is used for alien frequencies, isosystem measurement that UE provides.
4, method as claimed in claim 2 is characterized in that, further comprises the measuring sequence information of different system in the described response message.
5, method as claimed in claim 2 is characterized in that, if alien frequencies, isosystem measurement control information are handed down to UE by system message, further comprises the modification information of alien frequencies, isosystem measurement control information in the described response message.
6, method as claimed in claim 2 is characterized in that, if alien frequencies, isosystem measurement control information are not handed down to UE, further comprises alien frequencies, isosystem measurement control information in the described response message.
7, method as claimed in claim 2 is characterized in that, described measuring control information is carried by the measurement control messages in the system message that issues in broadcast channel or at the special measuring controlling message that shared channel issues.
8, method as claimed in claim 2 is characterized in that, described method further comprises the step of UE periodicity to the network side reporting measurement reports.
9, method as claimed in claim 2 is characterized in that, described step C further comprises:
Judgement does not start when measuring network side according to described measurement space decision parameter information, to UE echo reply message, comprises the indication information that does not start measurement in the described response message.
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| CN102387532A (en) * | 2011-01-10 | 2012-03-21 | 华为技术有限公司 | Frequency point information processing method and user equipment |
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