CN102468900A - Method for realizing control channel processing in carrier aggregation and system thereof - Google Patents
Method for realizing control channel processing in carrier aggregation and system thereof Download PDFInfo
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- CN102468900A CN102468900A CN201010531317XA CN201010531317A CN102468900A CN 102468900 A CN102468900 A CN 102468900A CN 201010531317X A CN201010531317X A CN 201010531317XA CN 201010531317 A CN201010531317 A CN 201010531317A CN 102468900 A CN102468900 A CN 102468900A
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Abstract
The invention discloses a method for realizing control channel processing in carrier aggregation and a system thereof. In a scheme of the invention, according to a type of a client, a control channel scheduling identifier is determined, and according to bandwidth capability of the client and a control channel design strategy, composition carrier usage indication is determined; by applying a control channel indication identifier comprising the control channel scheduling identifier and the composition carrier usage indication, the client is controlled to determine a used composition carrier and control channel design strategy. Control channel processing technology is realized in the carrier aggregation in the invention, through usage of the control channel indication identifier, composition carrier scheduling of control channel design is more flexible, the client can determine a composition carrier and control channel design method simultaneously according to a received control channel indication identifier, frequency of signaling interaction is reduced, and system overhead is reduced.
Description
Technical field
The present invention relates to the communications field, be specifically related to realize in a kind of carrier aggregation the method and system that control channel is handled.
Background technology
In follow-on broadband wireless communication network, need in current wireless communication system, support bigger bandwidth usually.
At present; Long-term technological evolution (Long Term Evolution in third generation partner program; LTE) all propose to adopt the mode of carrier aggregation to come in current wireless communication system, to support effectively bigger bandwidth in, to satisfy in the new generation of wireless standard demand to indexs such as throughput, peak rates.Carrier aggregation is to support the key technology of bigger bandwidth in the future broadband wireless communication systems; Through different carrier waves is carried out polymerization, form the carrier wave of bigger bandwidth, on the bandwidth after the polymerization, support to have the user side (UE) of stronger ability; For example, the bandwidth that surpasses 100MHz among the LTE-Advanced.But the carrier aggregation of discussing among the LTE-Advanced is not at present considered the influence of the presence of intercell interference that inter-cell user end throughput and user side average throughput are played an important role; If the carrier wave of polymerization partly is subjected to serious presence of intercell interference; So; Even obtained bigger bandwidth; Also can use the throughput and the rate capability of the user side of this partially polymerized carrier wave seriously to descend, seriously reduce the performance of carrier aggregation, and obviously reduced user satisfaction because of serious presence of intercell interference.
Summary of the invention
In view of this, main purpose of the present invention is to provide and realizes the method and system that control channel is handled in a kind of carrier aggregation, improves the carrier aggregation performance, improves user satisfaction.
For achieving the above object, technical scheme of the present invention is achieved in that
Realize the method that control channel is handled in a kind of carrier aggregation, this method comprises: confirm the control channel scheduling identification according to the type of user side, also confirm to form carrier wave use indication according to the bandwidth ability and the control channel layout strategy of user side; Application comprises the control channel scheduling identification, forms the control channel sign that carrier wave uses indication, and the control user side is confirmed employed composition carrier wave and control channel layout strategy.
Wherein, said process according to said bandwidth ability and the definite composition of control channel layout strategy carrier wave use indication comprises: confirm employed up link and down link composition carrier wave according to the bandwidth ability of user side; Afterwards, confirm to form carrier wave according to the control channel layout strategy and use indication field, comprise, what the composition carrier position of the configuration of control channel information, up link and down link were formed carrier wave strides the carrier wave corresponding relation.
Said control user side confirms that the process of employed composition carrier wave and control channel layout strategy comprises: send said control channel sign to user side; User side is confirmed employed composition carrier wave and control channel layout strategy according to the control channel sign of receiving.
Said control channel scheduling identification field is used to indicate the scheduling type of forming carrier wave, comprises, does not support/support to stride carrier dispatching; Said composition carrier wave uses indication field to be used to be provided with the layout strategy of control channel, comprises, forms the carrier wave corresponding relation accordingly with the control channel scheduling identification, the control channel information collocation method.
Said control channel sign is provided with in advance; Confirm said control channel scheduling identification, form carrier wave and use indication, and the operating main body of controlling said user side is the base station.
Realize the system that control channel is handled in a kind of carrier aggregation, this system comprises that forming carrier wave uses indication maintenance unit, control channel decision package; Wherein, said composition carrier wave uses the indication maintenance unit, is used for confirming the control channel scheduling identification according to the type of user side, also is used for confirming to form carrier wave use indication according to the bandwidth ability and the control channel layout strategy of user side; Said control channel decision package is used to use the control channel sign that comprises the control channel scheduling identification, forms carrier wave use indication, and the control user side is confirmed employed composition carrier wave and control channel layout strategy.
Said composition carrier wave uses when indicating maintenance unit according to said bandwidth ability and the definite composition of control channel layout strategy carrier wave use indication, is used for: confirm employed up link and down link composition carrier wave according to the bandwidth ability of user side; Afterwards, confirm to form carrier wave according to the control channel layout strategy and use indication field, comprise, what the composition carrier position of the configuration of control channel information, up link and down link were formed carrier wave strides the carrier wave corresponding relation.
When said control channel decision package control user side is confirmed employed composition carrier wave and control channel layout strategy, be used for: send said control channel sign to user side; User side is confirmed employed composition carrier wave and control channel layout strategy according to the control channel sign of receiving.
Said control channel scheduling identification field is used to indicate the scheduling type of forming carrier wave, comprises, does not support/support to stride carrier dispatching; Said composition carrier wave uses indication field to be used to be provided with the layout strategy of control channel, comprises, forms the carrier wave corresponding relation accordingly with the control channel scheduling identification, the control channel information collocation method.
Said control channel sign uses the indication maintenance unit to be provided with in advance by the said carrier wave of forming; Said composition carrier wave uses indication maintenance unit, control channel decision package to be arranged in the base station.
Realize the control channel Treatment Technology in the carrier aggregation of the present invention; Use through the control channel sign; Make the composition carrier dispatching of control channel design more flexible; User side can be confirmed to form carrier wave and control channel method for designing according to the control channel sign of receiving simultaneously, has reduced the number of times of Signalling exchange, and then has reduced overhead.
Description of drawings
Fig. 1 realizes the flow chart that control channel is handled in the carrier aggregation of the embodiment of the invention;
Fig. 2 realizes the general flow chart that control channel is handled in the carrier aggregation of the present invention;
Fig. 3 realizes the system diagram that control channel is handled in the carrier aggregation of the embodiment of the invention.
Embodiment
Usually, the control channel sign can be set, comprise the control channel scheduling identification, form carrier wave use indication.Wherein, control channel scheduling identification field is used to indicate the scheduling type of forming carrier wave, for example, does not support/support to stride carrier dispatching etc.; Forming carrier wave uses indication field to be used to be provided with the layout strategy of control channel; Comprise, form the carrier wave corresponding relation accordingly with the control channel scheduling identification, the control channel information collocation method; As; Form carrier wave and do not support to stride carrier dispatching, only form on the carrier wave at one and dispose control channel information, this composition carrier wave can not be dispatched on other composition carrier wave; Form the carrier wave support and stride carrier dispatching, on a plurality of composition carrier waves, dispose control channel information, form carrier wave and can form at other and stride carrier dispatching etc. on carrier wave.
When practical application, at first, (Base Station BS) according to the type of user side, confirms control channel scheduling identification field in the base station; Secondly, the up link and the down link composition carrier wave of use confirmed in the base station according to the bandwidth ability of user side; Then, the base station is provided with the control channel layout strategy and uses indication field confirm to form carrier wave, comprises, what the composition carrier position of the configuration of control channel information, up link and down link were formed carrier wave strides carrier wave corresponding relation etc.; At last, the base station transmits control channel sign to user side, confirms employed carrier wave and the control channel layout strategy formed by user side according to the control channel sign.
In conjunction with the aforesaid operations process; Use through the control channel sign; Make the composition carrier dispatching of control channel design more flexible; User side can be confirmed to form carrier wave and control channel method for designing according to the control channel sign of receiving simultaneously, has reduced the number of times of Signalling exchange, and then has reduced overhead.
The aforesaid operations process comprises following technical characterictic:
Characteristic 1: the type of user side is confirmed in the base station;
Characteristic 2: the bandwidth ability of user side is confirmed in the base station;
Characteristic 3: the base station is provided with the control channel sign in advance, comprises the control channel scheduling identification, forms carrier wave use indication field;
Characteristic 4: control channel sign field is confirmed according to the type of user side in the base station;
Characteristic 5: the up link and the down link composition carrier wave of use confirmed in the base station according to the bandwidth ability of user side;
Characteristic 6: the base station is provided with the control channel layout strategy and uses indication field confirm to form carrier wave, comprise, the composition carrier position of the configuration of control channel information, up link and down link composition carrier wave stride the carrier wave corresponding relation;
Characteristic 7: the base station transmits control channel sign to user side;
Characteristic 8: user side is confirmed employed composition carrier wave and control channel layout strategy according to the control channel sign of receiving.
The aforesaid operations content can be represented as shown in Figure 1.Referring to Fig. 1, Fig. 1 realizes the flow chart that control channel is handled in the carrier aggregation of the embodiment of the invention, and this flow process may further comprise the steps:
Step 1: the type of user side is confirmed in the base station;
Step 2: the bandwidth ability of user side is confirmed in the base station;
Step 3: the base station is provided with the control channel sign in advance, comprises the control channel scheduling identification, forms carrier wave use indication field;
Step 4: control channel sign field is confirmed according to the type of user side in the base station;
Step 5: the up link and the down link composition carrier wave of use confirmed in the base station according to the bandwidth ability of user side;
Step 6: the base station is provided with the control channel layout strategy and uses indication field confirm to form carrier wave, comprise, the composition carrier position of the configuration of control channel information, up link and down link composition carrier wave stride the carrier wave corresponding relation;
Step 7: the base station transmits control channel sign to user side;
Step 8: user side is confirmed employed composition carrier wave and control channel layout strategy according to the control channel sign of receiving.
Need to prove that the operation of being carried out by the base station in the aforesaid operations can also be undertaken by other functional entity with Control on Communication ability of network side, like operation maintenance center (OMC) etc.
It is visible to sum up above-mentioned flow process, realizes in the carrier aggregation of the present invention that the operation thinking of control channel processing can be represented as shown in Figure 2.Referring to Fig. 2, Fig. 2 realizes the general flow chart that control channel is handled in the carrier aggregation of the present invention, and this flow process may further comprise the steps:
Step 210: confirm the control channel scheduling identification according to the type of user side, also confirm to form carrier wave use indication according to the bandwidth ability and the control channel layout strategy of user side.
Step 220: use the control channel sign that comprises the control channel scheduling identification, forms carrier wave use indication, the control user side is confirmed employed composition carrier wave and control channel layout strategy.
In order to guarantee that above-mentioned technology contents can realize smoothly, can carry out setting as shown in Figure 3.Referring to Fig. 3, Fig. 3 realizes in the carrier aggregation of the embodiment of the invention that the system diagram that control channel is handled, this system comprise that continuous composition carrier wave uses indication maintenance unit, control channel decision package; Said units all can be arranged at base station, operation maintenance center etc. to be had in the functional entity of Control on Communication ability.
During practical application, form carrier wave and use the indication maintenance unit to confirm the control channel scheduling identification, can also confirm that the composition carrier wave uses indication according to the bandwidth ability and the control channel layout strategy of user side according to the type of user side.The control channel decision package then can be used the control channel sign that comprises the control channel scheduling identification, forms carrier wave use indication, and the control user side is confirmed employed composition carrier wave and control channel layout strategy.
Visible in sum; No matter be method or system, realize the control channel Treatment Technology in the carrier aggregation of the present invention, through the use of control channel sign; Make the composition carrier dispatching of control channel design more flexible; User side can be confirmed to form carrier wave and control channel method for designing according to the control channel sign of receiving simultaneously, has reduced the number of times of Signalling exchange, and then has reduced overhead.
The above is merely preferred embodiment of the present invention, is not to be used to limit protection scope of the present invention, all any modifications of within spirit of the present invention and principle, being done, is equal to replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. realize the method that control channel is handled in a carrier aggregation, it is characterized in that this method comprises:
Confirm the control channel scheduling identification according to the type of user side, also confirm to form carrier wave use indication according to the bandwidth ability and the control channel layout strategy of user side;
Application comprises the control channel scheduling identification, forms the control channel sign that carrier wave uses indication, and the control user side is confirmed employed composition carrier wave and control channel layout strategy.
2. method according to claim 1 is characterized in that, said process according to said bandwidth ability and the definite composition of control channel layout strategy carrier wave use indication comprises:
Confirm employed up link and down link composition carrier wave according to the bandwidth ability of user side; Afterwards, confirm to form carrier wave according to the control channel layout strategy and use indication field, comprise, what the composition carrier position of the configuration of control channel information, up link and down link were formed carrier wave strides the carrier wave corresponding relation.
3. method according to claim 2 is characterized in that, said control user side confirms that the process of employed composition carrier wave and control channel layout strategy comprises:
Send said control channel sign to user side;
User side is confirmed employed composition carrier wave and control channel layout strategy according to the control channel sign of receiving.
4. according to each described method of claim 1 to 3, it is characterized in that,
Said control channel scheduling identification field is used to indicate the scheduling type of forming carrier wave, comprises, does not support/support to stride carrier dispatching;
Said composition carrier wave uses indication field to be used to be provided with the layout strategy of control channel, comprises, forms the carrier wave corresponding relation accordingly with the control channel scheduling identification, the control channel information collocation method.
5. method according to claim 4 is characterized in that,
Said control channel sign is provided with in advance;
Confirm said control channel scheduling identification, form carrier wave and use indication, and the operating main body of controlling said user side is the base station.
6. realize the system that control channel is handled in a carrier aggregation, it is characterized in that this system comprises that forming carrier wave uses indication maintenance unit, control channel decision package; Wherein,
Said composition carrier wave uses the indication maintenance unit, is used for confirming the control channel scheduling identification according to the type of user side, also is used for confirming to form carrier wave use indication according to the bandwidth ability and the control channel layout strategy of user side;
Said control channel decision package is used to use the control channel sign that comprises the control channel scheduling identification, forms carrier wave use indication, and the control user side is confirmed employed composition carrier wave and control channel layout strategy.
7. system according to claim 6 is characterized in that, when said composition carrier wave uses the indication maintenance unit according to said bandwidth ability and the definite composition of control channel layout strategy carrier wave use indication, is used for:
Confirm employed up link and down link composition carrier wave according to the bandwidth ability of user side; Afterwards, confirm to form carrier wave according to the control channel layout strategy and use indication field, comprise, what the composition carrier position of the configuration of control channel information, up link and down link were formed carrier wave strides the carrier wave corresponding relation.
8. system according to claim 7 is characterized in that, when said control channel decision package control user side is confirmed employed composition carrier wave and control channel layout strategy, is used for:
Send said control channel sign to user side;
User side is confirmed employed composition carrier wave and control channel layout strategy according to the control channel sign of receiving.
9. according to each described system of claim 6 to 8, it is characterized in that,
Said control channel scheduling identification field is used to indicate the scheduling type of forming carrier wave, comprises, does not support/support to stride carrier dispatching;
Said composition carrier wave uses indication field to be used to be provided with the layout strategy of control channel, comprises, forms the carrier wave corresponding relation accordingly with the control channel scheduling identification, the control channel information collocation method.
10. system according to claim 9 is characterized in that,
Said control channel sign uses the indication maintenance unit to be provided with in advance by the said carrier wave of forming;
Said composition carrier wave uses indication maintenance unit, control channel decision package to be arranged in the base station.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010531317.XA CN102468900B (en) | 2010-11-03 | 2010-11-03 | The method and system of control channel process is realized in a kind of carrier aggregation |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010531317.XA CN102468900B (en) | 2010-11-03 | 2010-11-03 | The method and system of control channel process is realized in a kind of carrier aggregation |
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| CN102468900B CN102468900B (en) | 2016-04-13 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20100118746A1 (en) * | 2008-11-12 | 2010-05-13 | Alcatel-Lucent | Method for radio communication between a base station and a user terminal using transmission on component carriers, a base station, a user terminal and a communication network therefor |
| CN101848545A (en) * | 2010-04-21 | 2010-09-29 | 中兴通讯股份有限公司 | Method and device for distributing constituting carrier waves in carrier aggregation |
| CN101860972A (en) * | 2010-04-12 | 2010-10-13 | 中兴通讯股份有限公司 | Component carrier indication and collocation method and device in carrier aggregation |
| CN101867953A (en) * | 2010-06-13 | 2010-10-20 | 中兴通讯股份有限公司 | Method for detecting downlink control information in carrier aggregation scene and user equipment |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100118746A1 (en) * | 2008-11-12 | 2010-05-13 | Alcatel-Lucent | Method for radio communication between a base station and a user terminal using transmission on component carriers, a base station, a user terminal and a communication network therefor |
| CN101860972A (en) * | 2010-04-12 | 2010-10-13 | 中兴通讯股份有限公司 | Component carrier indication and collocation method and device in carrier aggregation |
| CN101848545A (en) * | 2010-04-21 | 2010-09-29 | 中兴通讯股份有限公司 | Method and device for distributing constituting carrier waves in carrier aggregation |
| CN101867953A (en) * | 2010-06-13 | 2010-10-20 | 中兴通讯股份有限公司 | Method for detecting downlink control information in carrier aggregation scene and user equipment |
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