CN101784075B - Method for allocating measurement gap, base station and terminal - Google Patents
Method for allocating measurement gap, base station and terminal Download PDFInfo
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- CN101784075B CN101784075B CN200910077298A CN200910077298A CN101784075B CN 101784075 B CN101784075 B CN 101784075B CN 200910077298 A CN200910077298 A CN 200910077298A CN 200910077298 A CN200910077298 A CN 200910077298A CN 101784075 B CN101784075 B CN 101784075B
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Abstract
The invention provides a method for allocating a measurement gap, a base station and a terminal. The base station selects one member carrier wave to allocate a measurement gap of a pilot-frequency or a different-system cell among aggregation carrier waves of a reinforced long-term-evolution (LTE-A) system, and the allocation information of the measurement gap is informed to a terminal, i.e. the base station allocates the measurement gap for a single member carrier wave, so the terminal is only required to stop the data or the signaling transmission in the measurement gap on the member carrier wave which is allocated with the measure gap, and other member carrier waves are free from being influenced, so the terminal can carry out the data and the signaling transmission on other member carrier waves so as to improve the data transmission quality and the system capacity.
Description
Technical field
The present invention relates to mobile communication technology, method, base station and the terminal of particularly a kind of allocating and measuring gap (measurement gap).
Background technology
In Long Term Evolution (LTE) system and wireless communication system before thereof, sub-district can only corresponding carrier wave, and the maximum bandwidth of this carrier wave is 20MHz usually.In enhancing Long Term Evolution (LTE-A) system of follow-up proposition, the peak rate of system requires than LTE system huge raising has been arranged, and requires to reach descending 1Gbps, up 500Mbps.On the 20MHz of a carrier wave, can't satisfy the demands; Therefore; Introduced carrier aggregation (CA:Carrier Aggregation) technology in the LTE-A system; Promptly will be continuously in sub-district or discontinuous a plurality of carrier aggregation be terminal service simultaneously together, common a plurality of carrier waves with polymerization become member carrier, each member carrier is no more than 20MHz usually.As shown in Figure 1, can in a LTE-A sub-district, a plurality of (being 4 among the figure) member carrier be carried out polymerization, base station and terminal can be in the enterprising data transfer of a plurality of member carriers of polymerization, to improve throughput of system.
The terminal may need to realize the sub-district switching between alien frequencies or the different system; System needs configurating terminal to measure the information such as channel quality of alien-frequency district or different system cell in the certain hour section; This time period is called measures gap, and for example, can dispose in cycle of every 40ms or 80ms has 6ms as measuring gap; In the LTE system, the terminal stops to receive and dispatch any information of working frequency range among this measurement gap.To the LTE-A system suitable measurement gap collocation method is not proposed still at present; If continue to use the collocation method of LTE system; Then can cause in measuring gap; All need stop the transfer of data work in this sub-district on all member carriers in a sub-district of terminal, data transmission quality and power system capacity are caused certain influence.
Summary of the invention
In view of this, the invention provides method, base station and the terminal of a kind of allocating and measuring gap, so that improve data transmission quality and power system capacity.
The method of a kind of allocating and measuring gap, this method comprises:
The base station is in the polymerization carrier wave; Dispose the measurement gap of an alien frequencies or different system cell according to one of them member carrier of carrier selecting policy selection; And the configuration information that will measure gap notifies to the terminal, so that stop data or signaling transmission among the measurement gap of terminal on the member carrier of selecting;
If said terminal pins all has independently receiver to each member carrier in the polymerization carrier wave of LTE-A system; Then said carrier selecting strategy specifically comprises: said base station is according to the alien frequencies that will measure or the carrier frequency of different system cell, and the selective reception bandwidth covers a member carrier in the pairing member carrier of receiver of said carrier frequency; Perhaps,
If said terminal pins is all used same receiver to all member carriers in the polymerization carrier wave of LTE-A system; And the alien frequencies of measuring or the carrier frequency of different system cell are in the reception bandwidth of this receiver; Then said carrier selecting strategy specifically comprises: said base station is selected a member carrier arbitrarily from said polymerization carrier wave; Perhaps select the minimum member carrier of a volume of transmitted data; Perhaps select the minimum member carrier of a bandwidth, perhaps select one to the poorest member carrier of said terminal channel quality; Perhaps,
If said terminal pins is all used same receiver to all member carriers in the polymerization carrier wave of LTE-A system; And the alien frequencies of measuring or the carrier frequency of different system cell be not in the reception bandwidth of this receiver; Then said carrier selecting strategy specifically comprises: though select adjustment receiver centre frequency can not with the carrier frequency of the said alien frequencies that will measure or the different system cell member carrier in the reception bandwidth of broadband receiver simultaneously, allocating and measuring gap on this member carrier.
A kind of base station is used for allocating and measuring gap, and this base station comprises: carrier selecting unit, measurement gap dispensing unit and information notification unit;
Said carrier selecting unit is used at the polymerization carrier wave, is that one of them member carrier is selected at the terminal according to the carrier selecting strategy;
If said terminal pins all has independently receiver to each member carrier in the polymerization carrier wave of LTE-A system; Then according to the alien frequencies that will measure or the carrier frequency of different system cell, the selective reception bandwidth covers a member carrier in the pairing member carrier of receiver of said carrier frequency; Perhaps,
If said terminal pins is all used same receiver to all member carriers in the polymerization carrier wave of LTE-A system; And the alien frequencies of measuring or the carrier frequency of different system cell are in the reception bandwidth of this receiver; Then from said polymerization carrier wave, select a member carrier arbitrarily; Perhaps select the minimum member carrier of a volume of transmitted data, perhaps select the minimum member carrier of a bandwidth, perhaps select one to the poorest member carrier of said terminal channel quality; Perhaps,
If said terminal pins is all used same receiver to all member carriers in the polymerization carrier wave of LTE-A system; And the alien frequencies of measuring or the carrier frequency of different system cell be in the reception bandwidth of this receiver, though then select adjustment receiver centre frequency can not with the carrier frequency of the said alien frequencies that will measure or the different system cell member carrier in the reception bandwidth of broadband receiver simultaneously;
Said measurement gap dispensing unit, the measurement gap of an alien frequencies of configuration or different system cell on the member carrier that is used for selecting in said carrier selecting unit;
Said information notification unit is used for the configuration information of measuring gap is notified to said terminal.
A kind of terminal, this terminal comprises: information receiving unit, carrier wave are confirmed unit, measuring and processing unit;
Said information receiving unit is used to receive the configuration information of the measurement gap that sends the base station;
Said carrier wave is confirmed the unit, is used for according to the member carrier of carrier selecting strategy at the measurement gap of polymerization carrier wave alien frequencies of having confirmed base station configuration or different system cell; Perhaps,
Said information receiving unit also is used to be received as the member carrier information of said alien frequencies or the selection of different system cell; Said carrier wave is confirmed the unit according to the member carrier information that said information receiving unit receives, the member carrier of the measurement gap of confirmed a base station configuration said alien frequencies or different system cell; Perhaps,
If said terminal pins all has independently receiver to each member carrier in the polymerization carrier wave of LTE-A system; Then said carrier wave is confirmed the unit according to the alien frequencies that will measure or the carrier frequency of different system cell, and the selective reception bandwidth covers a member carrier in the pairing member carrier of receiver of said carrier frequency; Perhaps,
If said terminal pins is all used same receiver to all member carriers in the polymerization carrier wave of LTE-A system; And the alien frequencies of measuring or the carrier frequency of different system cell are in the reception bandwidth of this receiver; Then said carrier wave is confirmed unit member carrier of any selection from said polymerization carrier wave; Perhaps select the minimum member carrier of a volume of transmitted data; Perhaps select the minimum member carrier of a bandwidth, perhaps select one to the poorest member carrier of said terminal channel quality; Perhaps,
If said terminal pins is all used same receiver to all member carriers in the polymerization carrier wave of LTE-A system; And the alien frequencies of measuring or the carrier frequency of different system cell be not in the reception bandwidth of this receiver; Even then said carrier wave confirm the unit select adjustment receiver centre frequency can not with the carrier frequency of the said alien frequencies that will measure or the different system cell member carrier in the reception bandwidth of broadband receiver simultaneously, allocating and measuring gap on this member carrier;
Said measuring and processing unit; The configuration information of the measurement gap that is used for receiving according to said information receiving unit; Stop data or signaling transmission among the measurement gap on the member carrier that said carrier wave is confirmed to confirm the unit, carry out the measurement of said alien frequencies or different system cell.
Can find out by above technical scheme; The base station is in the polymerization carrier wave; Dispose the measurement gap of an alien frequencies or different system cell according to one of them member carrier of carrier selecting policy selection, and the configuration information that will measure gap notifies to the terminal, promptly allocating and measuring gap is come to single member carrier in the base station; Make the terminal only need in the measurement gap on having disposed the member carrier of measuring gap, stop data or signaling transmission; Can not impact other member carrier, the terminal can also be in the transmission of enterprising line data of other member carrier and signaling, thereby has improved data transmission quality and power system capacity.
Description of drawings
Fig. 1 is the sketch map of polymerization carrier wave in the LTE-A system;
The flow chart of the allocating and measuring gap that Fig. 2 provides for the embodiment of the invention one;
The flow chart of the allocating and measuring gap that Fig. 3 provides for the embodiment of the invention two;
Fig. 4 a is carrier frequency first kind of situation sketch map in the operating frequency of the polymerization carrier wave of LTE-A system not of the alien frequencies that provides of the embodiment of the invention or different system cell;
Fig. 4 b is carrier frequency second kind of situation sketch map in the operating frequency of the polymerization carrier wave of LTE-A system not of the alien frequencies that provides of the embodiment of the invention or different system cell;
The architecture of base station figure that Fig. 5 provides for the embodiment of the invention;
The terminal structure figure that Fig. 6 provides for the embodiment of the invention.
Embodiment
In order to make the object of the invention, technical scheme and advantage clearer, describe the present invention below in conjunction with accompanying drawing and specific embodiment.
Method provided by the present invention mainly comprises: the base station selects one of them member carrier to be used to dispose the measurement gap of an alien frequencies or different system cell in the polymerization carrier wave; And the configuration information that will measure gap notifies to the terminal, so that stop data or signaling transmission among the measurement gap of terminal on the member carrier of above-mentioned selection.
Said method is mainly used in the LTE-A system, also can be applied to the system that other adopts carrier aggregation technology.
When the terminal exists alien frequencies that a plurality of needs measure or different system cell; Can select member carrier to come allocating and measuring gap respectively to a plurality of alien frequencies or different system cells that need to measure respectively; It also can be a plurality of that the member carrier of selecting can be one; Promptly can a plurality of alien frequencies or different system cell is common uses a member carrier, also can a plurality of alien frequencies or different system cell use different member carriers respectively.Usually the corresponding measurement gap of the perhaps different system cell of a plurality of alien frequencies is staggered in time as far as possible, guarantee to occur simultaneously measuring the member carrier number minimum of gap.
Wherein, the base station can all be notified the member carrier information of selecting to the terminal together with the configuration information of the measurement gap on this member carrier; Also can only the configuration information of measuring gap be notified to the terminal, the terminal adopts identical selection strategy to select this to measure the member carrier at gap place with the base station.
Owing under the polymerization carrier wave mechanism of LTE-A system, use a plurality of receivers for discontinuous member carrier terminal, the corresponding member carrier of each receiver also works alone; For continuous member carrier, can only use a broadband receiver, the reception bandwidth of this broadband receiver covers the frequency range of all member carriers.To different received machine type, lift several embodiment respectively said method is described in detail below.
Embodiment one, in the polymerization carrier wave of LTE-A system, terminal pins all has independently receiver to each member carrier.
The flow chart of the allocating and measuring gap that Fig. 2 provides for the embodiment of the invention one, as shown in Figure 2, can may further comprise the steps:
Step 201: the definite alien frequencies that will measure in base station or the carrier frequency of different system cell, the selective reception bandwidth covers the pairing member carrier of receiver of this carrier frequency.
Step 202: judge whether the member carrier of selecting is one, if not, execution in step 203, if, execution in step 204.
Step 203: therefrom select the minimum member carrier of a volume of transmitted data.
The flow process of step 201 to step 203 is the base station selected process that is used for allocating and measuring gap; The selection strategy that to be the base station adopt when selecting member carrier can for: according to the alien frequencies of measuring or the carrier frequency of different system cell, the pairing member carrier of receiver that the selective reception bandwidth covers this carrier frequency disposes the measurement gap of this alien frequencies or different system cell.If receiving the receiver of this carrier frequency of bandwidth covering exists a plurality of; Then can therefrom choose one wantonly; Perhaps select to number minimum one in these a plurality of member carriers; Perhaps select minimum one of these a plurality of member carrier medium frequencys, perhaps select minimum one of bandwidth in these a plurality of member carriers, perhaps select volume of transmitted data in these a plurality of member carriers minimum etc.
Step 204: the base station is allocating and measuring gap on the member carrier of this selection.
Step 205: judge whether also to exist other alien frequencies that need measure or different system cell, if not, execution in step 206, if, execution in step 201.
If this terminal only exists the alien frequencies that will measure or different system cell, then the base station after selecting member carrier, the configuration of on this member carrier, measuring gap, and the configuration information that will measure gap is notified to the terminal.
When having a plurality of alien frequencies that will measure or different system cell; The base station can be that each alien frequencies or different system cell are selected member carrier according to above-mentioned selection strategy one by one; And on the member carrier of each selection to different alien frequencies or different system cell allocating and measuring gap, and the configuration information of the measurement gap of each alien frequencies or different system cell notified to the terminal.In this process, the measurement gap on a plurality of member carriers is staggered in time as far as possible, guarantee to occur simultaneously measuring the member carrier number minimum of gap.
Step 206: the configuration information of gap is measured in the base station through RRC signaling terminal.
In this step, the configuration information of measuring gap to the terminal can be notified through the RRC means of signaling in the base station.
Further, the base station can be before the configuration information that will measure gap be notified to the terminal, adopt broadcasting mode, through the RRC means of signaling carrier selecting strategy that allocating and measuring gap is adopted is notified to all terminals.Perhaps unified carrier selecting strategy is adopted according to preset agreement in base station and terminal, and the member carrier that this carrier selecting strategy is confirmed allocating and measuring gap is separately passed through at base station and terminal, and the base station is only just measured the configuration information of gap and notified to the terminal.
Notify to the terminal if only will measure the configuration information of gap, then the member carrier at gap place is selected to measure in the terminal according to the selection strategy identical with the base station.In addition, if the ununified in advance carrier selecting strategy in base station and terminal, the base station can also be notified the member carrier information of selecting to the terminal together with the configuration information of the measurement gap on this member carrier.Wherein, the configuration information of measurement gap can comprise: measure length, cycle, the time of gap and the alien frequencies that is directed against or different system cell sign.
The terminal can only stop data and signaling transmission in the measurement gap of the member carrier of selecting, according to the configuration of measuring gap on this member carrier alien-frequency district or system cell are measured, and in other member carrier, continues data and signaling transmission.That is to say, measure data and signaling transmission that gap only influences the member carrier at its place.The pairing receiver of promptly selecting of member carrier stops data and signaling transmission in measuring gap, the pairing receiver of other member carrier can carry out the transmission of data and signaling always.
Embodiment two, in the polymerization carrier wave of LTE-A system, terminal pins adopts same broadband receiver to all member carriers, and the carrier frequency of alien frequencies of need measuring or different system cell is in the operating frequency of the polymerization carrier wave of LTE-A system.
The flow chart of the allocating and measuring gap that Fig. 3 provides for the embodiment of the invention two, as shown in Figure 3, can may further comprise the steps:
Step 301: the minimum member carrier of a volume of transmitted data is selected in the base station from the polymerization carrier wave of LTE-A system.
In this embodiment because the terminal has only a broadband receiver; Therefore; The strategy of base station selected member carrier and embodiment are inequality in the lump, except can from the polymerization carrier wave, selecting the minimum member carrier of a volume of transmitted data, can also select the minimum member carrier of bandwidth; Perhaps, perhaps select a member carrier etc. arbitrarily to the poorest member carrier of this terminal channel quality.
Step 302: the base station disposes the alien frequencies that will measure or the measurement gap of different system cell on the member carrier of this selection.
Step 303: judge whether also to exist other alien frequencies that need measure or different system cell, if not, execution in step 304, if, execution in step 301.
Equally, if this terminal only exists the alien frequencies that will measure or different system cell, then the base station after selecting member carrier, the configuration of on this member carrier, measuring gap, and the configuration information that will measure gap is notified to the terminal.
When having a plurality of alien frequencies that will measure or different system cell; The base station can be that an alien frequencies or different system cell are selected member carrier according to above-mentioned selection strategy one by one; And on the member carrier of each selection to different alien frequencies or different system cell allocating and measuring gap, and the configuration information of the measurement gap of each alien frequencies or different system cell notified to the terminal.In this process, the measurement gap on a plurality of member carriers is staggered in time as far as possible, guarantee to occur simultaneously measuring the member carrier number minimum of gap.
Step 304: the configuration information of gap is measured in the base station with RRC signaling terminal.
In this step, the configuration information of measuring gap to the terminal can be notified through the RRC means of signaling in the base station.
Further, the base station can be before the configuration information that will measure gap be notified to the terminal, adopt broadcasting mode, through the RRC means of signaling carrier selecting strategy that allocating and measuring gap is adopted is notified to all terminals.Perhaps unified carrier selecting strategy is adopted according to preset agreement in base station and terminal, and the member carrier that this carrier selecting strategy is confirmed allocating and measuring gap is separately passed through at base station and terminal, and the base station only will be measured the configuration information of gap and notify to the terminal.
Notify to the terminal if only will measure the configuration information of gap, then the member carrier at gap place is selected to measure in the terminal according to the selection strategy identical with the base station.In addition, if the ununified in advance carrier selecting strategy in base station and terminal, the base station can also be notified the member carrier information of selecting to the terminal together with the configuration information of the measurement gap on this member carrier.Wherein, the configuration information of measurement gap can comprise: measure length, cycle, the time of gap and the alien frequencies that is directed against or different system cell sign.
The terminal can only stop data and signaling transmission in the measurement gap of the member carrier of selecting, according to the configuration of measuring gap on this member carrier alien-frequency district or system cell are measured, and in other member carrier, continues data and signaling transmission.That is to say, measure data and signaling transmission that gap only influences the member carrier at its place.
Embodiment three, in the polymerization carrier wave of LTE-A system, terminal pins adopts same broadband receiver to all member carriers, and the carrier frequency of the alien frequencies that will measure or different system cell is not in the operating frequency of the polymerization carrier wave of this LTE-A system.
Still there are following two kinds of situation in this embodiment:
First kind of situation: all member carriers of the alien frequencies that measure or the carrier frequency of different system cell and LTE-A system can not be simultaneously in the reception bandwidth of broadband receiver.Shown in Fig. 4 a; The reception bandwidth of supposing receiver is 100MHz; Have two member carriers in the LTE-A system: centre frequency is that the member carrier 1 of f1 is the member carrier 2 of f1+80MHz with centre frequency, and the carrier frequency of alien frequencies or different system cell is f1-100MHz.At this moment, behind terminal configuration measurement gap, measure gap as long as get into, the terminal just can not be operated in the operating frequency of this sub-district of LET-A system, and this situation is the same with the LTE system.
Second kind of situation: after the adjustment broadband receiver centre frequency, the alien frequencies that measure or the carrier frequency of different system cell and part member carrier can be simultaneously in the reception bandwidth of broadband receiver.Shown in Fig. 4 b; The reception bandwidth of supposing receiver is 100MHz; Have two member carriers in the LTE-A system: centre frequency is that the member carrier 1 of f1 is the member carrier 2 of f1+80MHz with centre frequency, and the carrier frequency of alien frequencies or different system cell is f1+100MHz.
If do not allow to adjust the centre frequency of broadband receiver, then, measure gap as long as get into for behind the terminal configuration measurement gap, the data of LTE-A system cell just can not be transmitted in the terminal, and this situation is the same with the LTE system.
If allow the centre frequency of adjustment broadband receiver; Then can select can not with the carrier frequency of the alien frequencies that will measure or the different system cell member carrier in the reception bandwidth of the broadband receiver after the adjustment centre frequency simultaneously; Allocating and measuring gap on the member carrier of this selection; If it is a plurality of that the member carrier of selecting exists, then can therefrom choose an allocating and measuring gap wantonly.That is to say, even select the centre frequency of adjustment receiver, can not with the carrier frequency of the alien frequencies that will measure or the different system cell member carrier in the reception bandwidth of bandwidth receiver simultaneously, allocating and measuring gap on this member carrier.
Equally, if this terminal only exists the alien frequencies that will measure or different system cell, then the base station after selecting member carrier, the configuration of on this member carrier, measuring gap, and the configuration information that will measure gap is notified to the terminal.
When having a plurality of alien frequencies that will measure or different system cell; The base station can be that an alien frequencies or different system cell are selected member carrier according to above-mentioned selection strategy one by one; And on the member carrier of each selection to different alien frequencies or different system cell allocating and measuring gap, and the configuration information of the measurement gap of each alien frequencies or different system cell notified to the terminal.In this process, the measurement gap on a plurality of member carriers is staggered in time as far as possible, guarantee to occur simultaneously measuring the member carrier number minimum of gap.
The base station can be measured the configuration information of gap through RRC means of signaling notice terminal.
Further, the base station can be before the configuration information that will measure gap be notified to the terminal, adopt broadcasting mode, through the RRC means of signaling carrier selecting strategy of allocating and measuring gap is notified to all terminals.Perhaps unified carrier selecting strategy is adopted according to preset agreement in base station and terminal, and the member carrier that this carrier selecting strategy is confirmed allocating and measuring gap is separately passed through at base station and terminal, and the base station only will be measured the configuration information of gap and notify to the terminal.
Notify to the terminal if only will measure the configuration information of gap, then the member carrier at gap place is measured at the terminal according to the carrier selecting policy selection identical with the base station.In addition, if the ununified in advance carrier selecting strategy in base station and terminal, the base station can also be notified the member carrier information of selecting to the terminal together with the configuration information of the measurement gap on this member carrier.Wherein, the configuration information of measurement gap can comprise: measure length, cycle, the time of gap and the alien frequencies that is directed against or different system cell sign.
The terminal can only stop data and signaling transmission in the measurement gap of the member carrier of selecting, according to the configuration of measuring gap on this member carrier alien-frequency district or system cell are measured, and in other member carrier, continues data and signaling transmission.That is to say, measure data and signaling transmission that gap only influences the member carrier at its place.
More than be the detailed description that method provided by the present invention is carried out, face base station provided by the present invention and terminal down and be described in detail.
The architecture of base station figure that Fig. 5 provides for the embodiment of the invention, as shown in Figure 5, this base station can comprise: carrier selecting unit 501, measurement gap dispensing unit 502 and information notification unit 503.
Measure gap dispensing unit 502, the measurement gap of an alien frequencies of configuration or different system cell on the member carrier that is used for selecting in carrier selecting unit 501.
Wherein, If terminal pins all has independently receiver to each member carrier in the polymerization carrier wave of LTE-A system; Then carrier selecting unit 501 can be according to the carrier frequency of the alien frequencies that will measure or different system cell, a member carrier in the pairing member carrier of receiver of selective reception bandwidth covering carrier frequency.
If terminal pins is all used same receiver to all member carriers in the polymerization carrier wave of LTE-A system; And the alien frequencies of measuring or the carrier frequency of different system cell are in the reception bandwidth of this receiver; Then carrier selecting unit 501 can be selected a member carrier arbitrarily from the polymerization carrier wave; Perhaps select the minimum member carrier of a volume of transmitted data, perhaps select the minimum member carrier of a bandwidth, perhaps select one to the poorest member carrier of terminal channel quality.
If terminal pins is all used same receiver to all member carriers in the polymerization carrier wave of LTE-A system; And the alien frequencies of measuring or the carrier frequency of different system cell be not in the reception bandwidth of this receiver; After then carrier selecting unit 501 can be selected to adjust the broadband receiver centre frequency; Still can not with the carrier frequency of the alien frequencies that will measure or the different system cell member carrier in the reception bandwidth of broadband receiver simultaneously, allocating and measuring gap on this member carrier.
When having a plurality of alien frequencies that will measure or different system cell; This base station can also comprise: judging unit 504; Be used for after measuring gap dispensing unit 502 execution configuration operations; Judge whether also to exist other alien frequencies that will measure or different system cell, if then notify carrier selecting unit 501 to continue to select member carrier to other alien frequencies that will measure or different system cell; If the configuration information that then will measure gap offers information notification unit 503 not.
At this moment; Measure gap dispensing unit 502; If can also be used for existing the alien frequencies or the different system cell of a plurality of measurements; Then, the time of measuring gap on each member carrier is staggered, make the member carrier number that occurs measuring gap simultaneously minimum on each alien frequencies or the selected member carrier of different system cell during allocating and measuring gap.
In addition, information notification unit 503 can also be used for the member carrier information of selecting is notified to the terminal when the configuration information that will measure gap is notified to the terminal.
Wherein, information notification unit 503 configuration information that will measure gap notify to the mode at terminal can for: give the terminal through the RRC signaling.
In addition, information notification unit 503 can also be before the configuration information that will measure gap be notified to the terminal, adopt broadcasting mode, through the RRC means of signaling carrier selecting strategy that allocating and measuring gap is adopted is notified to all terminals.Perhaps unified carrier selecting strategy is adopted according to preset agreement in base station and terminal.
The terminal structure figure that Fig. 6 provides for the embodiment of the invention, as shown in Figure 6, this terminal can comprise: information receiving unit 601, carrier wave are confirmed unit 602 and measuring and processing unit 603.
Carrier wave is confirmed unit 602, is used for the member carrier at the measurement gap of the polymerization carrier wave of LTE-A system alien frequencies of having confirmed base station configuration or different system cell.
Measuring and processing unit 603, the configuration information of the measurement gap that is used for receiving according to information receiving unit 601 stops data or signaling transmission among the measurement gap on the member carrier that carrier wave is confirmed to confirm unit 602, carry out the measurement of alien frequencies or different system cell.
Wherein, carrier wave confirms that unit 602 can be according to the member carrier of the measurement gap of carrier selecting strategy alien frequencies of having confirmed base station configuration or different system cell.
Perhaps, information receiving unit 601 can also be used to be received as the member carrier information of alien frequencies or the selection of different system cell; At this moment, carrier wave is confirmed the member carrier information that unit 602 can receive according to information receiving unit, the member carrier of the measurement gap of confirmed a base station configuration alien frequencies or different system cell.
Particularly; If terminal pins all has independently receiver to each member carrier in the polymerization carrier wave of LTE-A system; Then carrier wave confirms that unit 602 can be according to the carrier frequency of the alien frequencies that will measure or different system cell, a member carrier in the pairing member carrier of receiver of selective reception bandwidth covering carrier frequency.In such cases, the receiver that this member carrier is corresponding stops the transmission of data or signaling in measuring gap, carry out the measurement of alien frequencies or different system cell, and other receiver is also influenced.
If terminal pins is all used same receiver to all member carriers in the polymerization carrier wave of LTE-A system; And the alien frequencies of measuring or the carrier frequency of different system cell are in the reception bandwidth of this receiver; Then carrier wave confirms that unit 602 can select a member carrier arbitrarily from the polymerization carrier wave; Perhaps select the minimum member carrier of a volume of transmitted data, perhaps select the minimum member carrier of a bandwidth, perhaps select one to the poorest member carrier of terminal channel quality.
If terminal pins is all used same receiver to all member carriers in the polymerization carrier wave of LTE-A system; And the alien frequencies of measuring or the carrier frequency of different system cell be not in the reception bandwidth of this receiver; After then carrier wave confirms that unit 602 can be selected to adjust the broadband receiver centre frequency; Still can not with the carrier frequency of the alien frequencies that will measure or the different system cell member carrier in the reception bandwidth of broadband receiver simultaneously, allocating and measuring gap on this member carrier.
Can find out by above description; The base station is in the polymerization carrier wave of LTE-A system; Dispose the measurement gap of an alien frequencies or different system cell according to one of them member carrier of carrier selecting policy selection, and the configuration information that will measure gap notifies to the terminal, promptly allocating and measuring gap is come to single member carrier in the base station; Make the terminal only need in the measurement gap on having disposed the member carrier of measuring gap, stop data or signaling transmission; Can not impact other member carrier, the terminal can also be in the transmission of enterprising line data of other member carrier and signaling, thereby has improved data transmission quality and power system capacity.
The above is merely preferred embodiment of the present invention, and is in order to restriction the present invention, not all within spirit of the present invention and principle, any modification of being made, is equal to replacement, improvement etc., all should be included within the scope that the present invention protects.
Claims (14)
1. the method for an allocating and measuring gap (gap) is characterized in that, this method comprises:
The base station is in the polymerization carrier wave; Dispose the measurement gap of an alien frequencies or different system cell according to one of them member carrier of carrier selecting policy selection; And the configuration information that will measure gap notifies to the terminal, so that stop data or signaling transmission among the measurement gap of terminal on the member carrier of selecting;
If said terminal pins all has independently receiver to each member carrier in the polymerization carrier wave of LTE-A system; Then said carrier selecting strategy specifically comprises: said base station is according to the alien frequencies that will measure or the carrier frequency of different system cell, and the selective reception bandwidth covers a member carrier in the pairing member carrier of receiver of said carrier frequency; Perhaps,
If said terminal pins is all used same receiver to all member carriers in the polymerization carrier wave of LTE-A system; And the alien frequencies of measuring or the carrier frequency of different system cell are in the reception bandwidth of this receiver; Then said carrier selecting strategy specifically comprises: said base station is selected a member carrier arbitrarily from said polymerization carrier wave; Perhaps select the minimum member carrier of a volume of transmitted data; Perhaps select the minimum member carrier of a bandwidth, perhaps select one to the poorest member carrier of said terminal channel quality; Perhaps,
If said terminal pins is all used same receiver to all member carriers in the polymerization carrier wave of LTE-A system; And the alien frequencies of measuring or the carrier frequency of different system cell be not in the reception bandwidth of this receiver; Then said carrier selecting strategy specifically comprises: though select adjustment receiver centre frequency can not with the carrier frequency of the said alien frequencies that will measure or the different system cell member carrier in the reception bandwidth of broadband receiver simultaneously, allocating and measuring gap on this member carrier.
2. method according to claim 1; It is characterized in that; If said terminal pins all has independently receiver to each member carrier in the polymerization carrier wave of LTE-A system, when the pairing member carrier of receiver that covers said carrier frequency when the said reception bandwidth of selecting is a plurality of, select the said measurement gap of one of them member carrier configuration arbitrarily; Perhaps select a minimum said measurement gap of member carrier configuration of numbering; Perhaps, select a minimum said measurement gap of member carrier configuration of frequency, perhaps select a minimum said measurement gap of configuration of volume of transmitted data.
3. according to the described method of the arbitrary claim of claim 1 to 2; It is characterized in that; If have the alien frequencies or the different system cell of a plurality of measurements, then said base station is carried out the step that one of them member carrier of said selection disposes the measurement gap of an alien frequencies or different system cell respectively to each alien frequencies that will measure or different system cell.
4. method according to claim 3; It is characterized in that; If have the alien frequencies or the different system cell of a plurality of measurements,, make the member carrier number that occurs measuring gap simultaneously minimum then on each alien frequencies or the selected member carrier of different system cell during allocating and measuring gap.
5. according to the described method of the arbitrary claim of claim 1 to 2; It is characterized in that; Said terminal is behind the configuration information that receives said measurement gap; According to said carrier selecting policy selection member carrier, stop the transmission of data and signaling among the measurement gap of configuration information on the member carrier of selecting according to the measurement gap that receives, and specified alien frequencies of configuration information or the different system cell of said measurement gap are measured; Perhaps,
When said base station is notified the configuration information of said measurement gap to the terminal member carrier information of selecting is notified to the terminal; Said terminal is according to the information of the member carrier of the configuration information of the measurement gap that receives and selection; Stop the transmission of data and signaling among the measurement gap on the member carrier of this selection, and specified alien frequencies of configuration information or the different system cell of said measurement gap are measured.
6. method according to claim 1 is characterized in that, the said configuration information that will measure gap notifies the mode to the terminal to be: give said terminal through the radio resource control RRC signaling.
7. according to claim 1 or 6 described methods, it is characterized in that this method also comprises: said base station is notified the carrier selecting strategy to said terminal through broadcasting or RRC means of signaling; Perhaps,
Unified carrier selecting strategy is adopted according to preset agreement in said base station and terminal.
8. a base station is used for allocating and measuring gap, it is characterized in that, this base station comprises: carrier selecting unit, measurement gap dispensing unit and information notification unit;
Said carrier selecting unit is used at the polymerization carrier wave, is that one of them member carrier is selected at the terminal according to the carrier selecting strategy;
If said terminal pins all has independently receiver to each member carrier in the polymerization carrier wave of LTE-A system; Then according to the alien frequencies that will measure or the carrier frequency of different system cell, the selective reception bandwidth covers a member carrier in the pairing member carrier of receiver of said carrier frequency; Perhaps,
If said terminal pins is all used same receiver to all member carriers in the polymerization carrier wave of LTE-A system; And the alien frequencies of measuring or the carrier frequency of different system cell are in the reception bandwidth of this receiver; Then from said polymerization carrier wave, select a member carrier arbitrarily; Perhaps select the minimum member carrier of a volume of transmitted data, perhaps select the minimum member carrier of a bandwidth, perhaps select one to the poorest member carrier of said terminal channel quality; Perhaps,
If said terminal pins is all used same receiver to all member carriers in the polymerization carrier wave of LTE-A system; And the alien frequencies of measuring or the carrier frequency of different system cell be in the reception bandwidth of this receiver, though then select adjustment receiver centre frequency can not with the carrier frequency of the said alien frequencies that will measure or the different system cell member carrier in the reception bandwidth of broadband receiver simultaneously;
Said measurement gap dispensing unit, the measurement gap of an alien frequencies of configuration or different system cell on the member carrier that is used for selecting in said carrier selecting unit;
Said information notification unit is used for the configuration information of measuring gap is notified to said terminal.
9. base station according to claim 8; It is characterized in that; This base station also comprises: judging unit is used for after said measurement gap dispensing unit is carried out configuration operation, judging whether also to exist other alien frequencies that will measure or different system cell; If then notify said carrier selecting unit to continue to select member carrier to other alien frequencies that will measure or different system cell; If the configuration information that then will measure gap offers said information notification unit not.
10. base station according to claim 9; It is characterized in that; Said measurement gap dispensing unit; If also be used for existing the alien frequencies or the different system cell of a plurality of measurements,, make the member carrier number that occurs measuring gap simultaneously minimum then on each alien frequencies or the selected member carrier of different system cell during allocating and measuring gap.
11. base station according to claim 8 is characterized in that, said information notification unit also is used for the member carrier information of selecting is notified to the terminal when notifying the configuration information of said measurement gap to the terminal.
12. base station according to claim 8 is characterized in that, said information notification unit is broadcast to all terminals with the carrier selecting strategy of allocating and measuring gap, perhaps gives said terminal through the RRC signaling.
13. base station according to claim 8 is characterized in that, said information notification unit will be measured the configuration information of gap and give said terminal through the RRC signaling.
14. a terminal is characterized in that, this terminal comprises: information receiving unit, carrier wave are confirmed unit, measuring and processing unit;
Said information receiving unit is used to receive the configuration information of the measurement gap that sends the base station;
Said carrier wave is confirmed the unit, is used for according to the member carrier of carrier selecting strategy at the measurement gap of polymerization carrier wave alien frequencies of having confirmed base station configuration or different system cell; Perhaps,
Said information receiving unit also is used to be received as the member carrier information of said alien frequencies or the selection of different system cell; Said carrier wave is confirmed the unit according to the member carrier information that said information receiving unit receives, the member carrier of the measurement gap of confirmed a base station configuration said alien frequencies or different system cell;
If said terminal pins all has independently receiver to each member carrier in the polymerization carrier wave of LTE-A system; Then said carrier wave is confirmed the unit according to the alien frequencies that will measure or the carrier frequency of different system cell, and the selective reception bandwidth covers a member carrier in the pairing member carrier of receiver of said carrier frequency; Perhaps,
If said terminal pins is all used same receiver to all member carriers in the polymerization carrier wave of LTE-A system; And the alien frequencies of measuring or the carrier frequency of different system cell are in the reception bandwidth of this receiver; Then said carrier wave is confirmed unit member carrier of any selection from said polymerization carrier wave; Perhaps select the minimum member carrier of a volume of transmitted data; Perhaps select the minimum member carrier of a bandwidth, perhaps select one to the poorest member carrier of said terminal channel quality; Perhaps,
If said terminal pins is all used same receiver to all member carriers in the polymerization carrier wave of LTE-A system; And the alien frequencies of measuring or the carrier frequency of different system cell be not in the reception bandwidth of this receiver; Even then said carrier wave confirm the unit select adjustment receiver centre frequency can not with the carrier frequency of the said alien frequencies that will measure or the different system cell member carrier in the reception bandwidth of broadband receiver simultaneously, allocating and measuring gap on this member carrier;
Said measuring and processing unit; The configuration information of the measurement gap that is used for receiving according to said information receiving unit; Stop data or signaling transmission among the measurement gap on the member carrier that said carrier wave is confirmed to confirm the unit, carry out the measurement of said alien frequencies or different system cell.
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