CN101998584B - Control method, device and system of physic downlink control channel - Google Patents

Abstract

The embodiment of the invention discloses a control method of a PDCCH (Physic Downlink Control Channel), comprising the following steps of: configuring a member carrier set used for the dispatching of cross-member carriers in base station equipment; and notifying the member carrier set to user equipment by the base station equipment so that the user equipment carries out a PDCCH blind test according to the member carrier set. The embodiment of the invention effectively reduces the increase of blind test times, which is caused by different bandwidths of member carriers aggregated by a system.

Description

A kind of control method of Physical Downlink Control Channel, device and system

Technical field

The present invention relates to the mobile communication technology field, particularly relate to a kind of control method, device and system of Physical Downlink Control Channel.

Background technology

In order to make the LTE-A system support the system bandwidth wideer, the resource of a plurality of LTE carrier waves (claiming member carrier again) need be coupled together use than LTE system.Particularly, a plurality of continuous or discrete LTE carrier waves are carried out polymerization, for LTE-A provides bigger transmission bandwidth.

In the prior art, it is consistent as far as possible with LTE Release 8 that design on each carrier wave in the carrier aggregation system keeps, thereby the terminal that guarantees LTE R8 can be on each member carrier operate as normal, wherein, the bandwidth of each member carrier can be inconsistent.

Consider PDCCH (Physical Downlink Control Channel, Physical Downlink Control Channel) flexibility of She Ji complexity, scheduling, and the asymmetric state of carrier aggregation of up-downgoing, can dispatch the physical resource of other member carriers by a plurality of PDCCH on the member carrier, every PDCCH can only dispatch the resource of a member carrier, as shown in Figure 1.

The inventor is in realizing process of the present invention, and there are the following problems at least to find prior art:

Because the bandwidth of each member carrier may be different in the carrier aggregation system, DCI on the different members carrier wave (Downlink Control Information, Downlink Control Information) bit number difference, if the PDCCH of a plurality of different members carrier bandwidths transmits in a member carrier, receiving terminal is when carrying out the PDCCH blind check, need all carry out blind check to the DCI of different members carrier wave corresponding under the current transmission mode, can cause the blind check complexity too high; In addition, dispatch PDSCH (the Physical Downlink Share Channel of other member carriers for PDCCH by current member carrier, Physical Downlink Shared Channel) PDCCH controlling schemes, if varying in size of the control area of different members carrier wave, terminal correctly detects the PCFICH of the member carrier that carries PDCCH when transmitting first, but flase drop PCFICH (the Physical Control Format IndicatorChannel of other member carriers of this PDCCH indication, Physical Control Format Indicator Channel), can cause terminal to pass through HARQ (Hybrid AutomaticRepeat-reQuest mixes automatic repeat requests) merges the probability be correctly decoded and descends greatly.

Summary of the invention

The embodiment of the invention provides a kind of control method, device and system of Physical Downlink Control Channel, is used to reduce because the increase of the blind check number of times that the difference of the bandwidth of the member carrier of system's polymerization causes.

The embodiment of the invention proposes the control method of a kind of PDCCH, may further comprise the steps:

The base station equipment configuration is used to stride the member carrier collection of dispatching between member carrier;

Described base station equipment makes described subscriber equipment carry out the PDCCH blind check according to described member carrier collection described member carrier collection notifying user equipment.

Preferably, described member carrier collection comprises the downlink member carrier set, and described base station equipment configuration is used to stride the member carrier collection of dispatching between member carrier, specifically comprises:

Described base station equipment is divided into one or more downlink member carrier set with downlink member carriers all in the system, can stride the scheduling between member carrier between the downlink member carrier in the described downlink member carrier set.

Preferably, described member carrier collection also comprises the uplink member carrier set,

Described base station equipment is divided into one or more uplink member carrier set with uplink member carrier all in the system, and the uplink member carrier in the described uplink member carrier set can be by the scheduling of the PDCCH in one or more downlink member carrier; Or

According to the corresponding relation between up/downlink member carrier, obtain described uplink member carrier set according to described downlink member carrier set.

Preferably, described base station equipment specifically comprises described member carrier collection notifying user equipment:

Described base station equipment is notified described subscriber equipment by the system broadcasts control information with described downlink member carrier set and the set of described uplink member carrier, and the aggregate information of described member carrier is indicated by the mode of bit mapping bitmap.

Preferably, the control format indication CFI of the downlink member carrier in the described downlink member carrier set is set to identical;

Described subscriber equipment is determined the CFI of Physical Downlink Shared Channel PDSCH according to the CFI of the member carrier of dispatch carrying.

Preferably, described subscriber equipment carries out the PDCCH blind check according to described member carrier collection, specifically comprises:

Described subscriber equipment is according to the bandwidth and the corresponding downstream control information DCI form of the member carrier in described downlink member carrier set and the set of described uplink member carrier, obtain the bit number of the DCI of PDCCH, and carry out the PDCCH blind check according to the bit number of described DCI.

Preferably, described base station equipment is divided into one or more downlink member carrier set with downlink member carriers all in the system, specifically comprises:

The downlink member carrier that described base station equipment is identical with bandwidth is configured in the same downlink member carrier set; Or

Described base station equipment limits the scheduling relation between the described downlink member carrier according to the bandwidth of downlink member carrier, makes described subscriber equipment implicit expression obtain the downlink member carrier set.

Preferably, described base station equipment configuration is used to stride the member carrier collection of dispatching between member carrier, specifically comprises:

Described base station equipment disposes the downlink member carrier set that described downlink member carrier can be dispatched for each downlink member carrier.

Preferably, described member carrier collection also comprises the uplink member carrier set,

Described base station equipment disposes the uplink member carrier set that described downlink member carrier can be dispatched for each downlink member carrier; Or

According to the corresponding relation between up/downlink member carrier, and the set of described downlink member carrier obtains described uplink member carrier set.

Preferably, it is characterized in that described base station equipment specifically comprises described member carrier collection notifying user equipment:

Described base station equipment is notified described subscriber equipment by the system broadcasts control information with described downlink member carrier set and the set of described uplink member carrier, and the aggregate information of described member carrier is indicated by the mode of bit mapping bitmap.

Preferably, described subscriber equipment carries out the PDCCH blind check according to described member carrier collection, specifically comprises:

Described subscriber equipment is according to the bandwidth and the corresponding downstream control information DCI form of the member carrier in described downlink member carrier set and the set of described uplink member carrier, obtain the bit number of the DCI of PDCCH, and carry out the PDCCH blind check according to the bit number of described DCI.

The embodiment of the invention also proposes a kind of base station equipment, comprising:

Configuration module is used to dispose and is used to stride the member carrier collection of dispatching between member carrier;

Notification module is used for the described member carrier collection notifying user equipment with described configuration module configuration, makes described subscriber equipment carry out the PDCCH blind check according to described member carrier collection.

Preferably, described member carrier collection comprises the downlink member carrier set,

Described configuration module specifically is used for the downlink member carrier that system is all and is divided into one or more downlink member carrier set, can stride the scheduling between member carrier between the downlink member carrier in the described downlink member carrier set.

Preferably, described member carrier collection also comprises the uplink member carrier set,

Described configuration module, also be used for the uplink member carrier that system is all and be divided into one or more uplink member carrier set, the uplink member carrier in the described uplink member carrier set can be by the scheduling of the PDCCH in one or more downlink member carrier; Or

According to the corresponding relation between up/downlink member carrier, obtain described uplink member carrier set according to described downlink member carrier set.

Preferably, described notification module, specifically be used for notifying described subscriber equipment by the system broadcasts control information with described downlink member carrier set and the set of described uplink member carrier, the aggregate information of described member carrier is indicated by the mode of bit mapping bitmap.

Preferably, described configuration module, the control format indication CFI that also is used for the downlink member carrier of described downlink member carrier set is set to identical, makes described subscriber equipment determine the CFI of PDSCH according to the CFI of the member carrier of dispatch carrying.

Preferably, described configuration module specifically is used for the downlink member carrier that bandwidth is identical and is configured to same downlink member carrier set; Or

According to the bandwidth of downlink member carrier, limit the scheduling relation between the described downlink member carrier, make described subscriber equipment implicit expression obtain the downlink member carrier set.

Preferably, described configuration module specifically is used to each downlink member carrier to dispose the downlink member carrier set that described downlink member carrier can be dispatched.

Preferably, described member carrier collection also comprises the uplink member carrier set,

Described configuration module also is used to each downlink member carrier to dispose the uplink member carrier set that described downlink member carrier can be dispatched; Or

According to the corresponding relation between up/downlink member carrier, and the set of described downlink member carrier obtains described uplink member carrier set.

Preferably, described notification module, specifically be used for notifying described subscriber equipment by the system broadcasts control information with described downlink member carrier set and the set of described uplink member carrier, the aggregate information of described member carrier is indicated by the mode of bit mapping bitmap.

The embodiment of the invention also proposes a kind of subscriber equipment, comprising:

Acquisition module, what be used to obtain the base station equipment configuration is used to stride the member carrier collection of dispatching between member carrier;

Detection module is used for carrying out the PDCCH blind check according to the described member carrier collection that described acquisition module obtains.

Preferably, described member carrier collection comprises uplink member carrier set and downlink member carrier set,

Described detection module, specifically be used for bandwidth and corresponding D CI form according to the member carrier of described downlink member carrier set and the set of described uplink member carrier, obtain the bit number of the DCI of PDCCH, and carry out the PDCCH blind check according to the bit number of described DCI.

Preferably, described detection module also is used for determining according to the CFI of the member carrier of dispatch carrying the CFI of PDSCH.

The embodiment of the invention also proposes the control system of a kind of PDCCH, comprises base station equipment and subscriber equipment,

Described base station equipment is used for configuration member's carrier set, and described member carrier collection is used to stride between member carrier dispatches; With described member carrier collection notifying user equipment, make described subscriber equipment carry out the PDCCH blind check according to described member carrier collection;

Described subscriber equipment, what be used to obtain described base station equipment configuration is used to stride the member carrier collection of dispatching between member carrier; Carry out the PDCCH blind check according to the described member carrier collection of obtaining.

The technical scheme of the embodiment of the invention has the following advantages, because descending controlling schemes in a kind of carrier aggregation system is provided, has reduced effectively because the increase of the blind check number of times that the difference of the bandwidth of the member carrier of system's polymerization causes.

Description of drawings

In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.

Fig. 1 is a PDCCH controlling schemes schematic diagram of the prior art;

Fig. 2 is the control method flow chart of a kind of PDCCH in the embodiment of the invention one;

Fig. 3 is the control method flow chart of a kind of PDCCH in the embodiment of the invention two;

Fig. 4 is the controlling schemes schematic diagram of a kind of PDCCH in the embodiment of the invention two;

Fig. 5 is the control method flow chart of a kind of PDCCH in the embodiment of the invention three;

Fig. 6 is the controlling schemes schematic diagram of a kind of PDCCH in the embodiment of the invention three;

Fig. 7 is the control method flow chart of a kind of PDCCH in the embodiment of the invention four;

Fig. 8 is a kind of base station equipment structural representation in the embodiment of the invention five;

Fig. 9 is a kind of user device architecture schematic diagram in the embodiment of the invention six;

Figure 10 is the control system structural representation of a kind of PDCCH in the embodiment of the invention seven.

Embodiment

Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.

As shown in Figure 2, the control method flow chart for a kind of PDCCH in the embodiment of the invention one may further comprise the steps:

Step 201, the base station equipment configuration is used to stride the member carrier collection of dispatching between member carrier.

Wherein, member carrier collection comprises the downlink member carrier set, the base station equipment configuration is used to stride the member carrier collection of dispatching between member carrier, specifically comprise: base station equipment is divided into one or more downlink member carrier set with downlink member carriers all in the system, can stride the scheduling between member carrier between the downlink member carrier in this downlink member carrier set.

Above-mentioned member carrier collection, also comprise the uplink member carrier set, the base station equipment configuration is used to stride the member carrier collection of dispatching between member carrier, also comprise: base station equipment is divided into one or more uplink member carrier set with uplink member carrier all in the system, and the uplink member carrier in the described uplink member carrier set can be by the scheduling of the PDCCH in one or more downlink member carrier; Or

According to the corresponding relation between up/downlink member carrier, obtain described uplink member carrier set according to described downlink member carrier set.

On the other hand, the base station equipment configuration is used to stride the member carrier collection of dispatching between member carrier, specifically comprises: the downlink member carrier that base station equipment is identical with bandwidth is configured in the same downlink member carrier set; Or

Base station equipment is according to the bandwidth of downlink member carrier, and the scheduling relation between the restriction downlink member carrier makes subscriber equipment implicit expression obtain the downlink member carrier set.

After the downlink member carrier that base station equipment is identical with bandwidth is configured in the same downlink member carrier set, can also be set to the CFI (Control Format Indicator, control format indication) of the downlink member carrier in the described downlink member carrier set identical; Subscriber equipment is determined the CFI of PDSCH according to the CFI of the member carrier of dispatch carrying.

Again on the one hand, the base station equipment configuration is used to stride the member carrier collection of dispatching between member carrier, specifically comprises: base station equipment disposes the downlink member carrier set that described downlink member carrier can be dispatched for each downlink member carrier; Also comprise: base station equipment disposes the uplink member carrier set that described downlink member carrier can be dispatched for each downlink member carrier; Or

According to the corresponding relation between up/downlink member carrier, and the set of described downlink member carrier obtains described uplink member carrier set.

Step 202, base station equipment make subscriber equipment carry out the PDCCH blind check according to member carrier collection the member carrier collection notifying user equipment.

Particularly, base station equipment can be passed through SIB (System Information Block, system information block) with downlink member carrier set and uplink member carrier set notifying user equipment, the aggregate information of this member carrier is indicated by the mode of bit mapping bitmap.

Subscriber equipment carries out the PDCCH blind check according to downlink member carrier set and uplink member carrier set, specifically comprise: subscriber equipment is according to the bandwidth and the corresponding D CI form of the member carrier in downlink member carrier set and the uplink member carrier set, obtain the bit number of the DCI of PDCCH, and carry out the PDCCH blind check according to the bit number of DCI.

The technical scheme of the embodiment of the invention has the following advantages, because descending controlling schemes in a kind of carrier aggregation system is provided, has reduced effectively because the increase of the blind check number of times that the difference of the bandwidth of the member carrier of system's polymerization causes.

As shown in Figure 3, the control method flow chart for a kind of PDCCH in the embodiment of the invention two may further comprise the steps:

Step 301, downlink member carrier set and uplink member carrier set that base station equipment can be dispatched for each downlink member carrier configuration.

Particularly, base station equipment can be notified the compound method of carrier set by SIB, also can adopt the mode of Bitmap to indicate.Base station equipment can be passed through the S set of the downlink member carrier of this member carrier scheduling for each downlink member carrier configuration _DL ⁱ, represent the set of the downlink member carrier that i downlink member carrier can be dispatched. $S_{\mathrm{DL}}^i\⊆S_{\mathrm{DL}}^{\mathrm{all}},$ Wherein, S _DL ^AllRepresent the set of all downlink member carriers.Base station equipment can also can be passed through the S set of the uplink member carrier of this member carrier scheduling for i downlink member carrier configuration _DL ^{I, UL}, $S_{\mathrm{DL}}^{i,\mathrm{UL}}\⊆S_{\mathrm{UL}}^{\mathrm{all}},$ Wherein, S _DL ^{I, UL}Represent the set of all uplink member carrier.As shown in Figure 4, be the controlling schemes schematic diagram of a kind of PDCCH in the embodiment of the invention two, system comprises 4 downlink member carriers, wherein, the bandwidth of downlink member carrier CC 1 and CC 2 is 20MHz, and the bandwidth of downlink member carrier CC 3 and CC 4 is 10MHz, the base station equipment notice $S_{\mathrm{DL}}^1=\left\{\mathrm{1,2}\right\},$ $S_{\mathrm{DL}}^2=\left\{\mathrm{1,2}\right\},$ $S_{\mathrm{DL}}^3=\left\{\mathrm{3,4}\right\},$ $S_{\mathrm{DL}}^4=\left\{\mathrm{3,4}\right\},$ PDCCH on the then descending CC 1 can indicating downlink CC 1 and the transmission of the PDSCH of descending CC 2, PDCCH on the descending CC 2 can indicating downlink CC 1 and the transmission of the PDSCH of descending CC 2, PDCCH on the descending CC 3 can indicating downlink CC 3 and the transmission of the PDSCH of descending CC 4, and the PDCCH on the descending CC 4 can indicating downlink CC 3 and the transmission of the PDSCH of descending CC 4.

Step 302, downlink member carrier set and uplink member carrier set notifying user equipment that base station equipment can be dispatched each downlink member carrier by implicit expression indication or explicit indication.

Particularly, when base station equipment was indicated by implicit expression, subscriber equipment can pass through S according to the corresponding relation between the UL/DL member carrier _DL ⁱObtain S _DL ^{I, UL}Base station equipment is indicated the set of its uplink member carrier that can dispatch during by explicit indication for each downlink member carrier i.

Correspondingly, indicating means for the carrier index information field of DCI among the PDCCH, can adopt indicating means based on the carrier index of cell configuration, wherein, the bit number of carrier index information field is relevant with the number of UL/DL member carrier, if the number of downlink member carrier is N, the bit number in descending carrier number information territory is so

If the number of uplink member carrier is M, the bit number in up-link carrier number information territory is so

Also can adopt the indicating means based on the carrier index of member carrier, wherein, the bit number of carrier index information field is the downlink member carrier S set corresponding with each downlink member carrier _DL ⁱWith the uplink member carrier S set _DL ^{I, UL}In the number of member carrier relevant, if S _DL ⁱThe number of middle downlink member carrier is K, and the bit number in descending carrier number information territory is so

If S _DL ^{I, UL}The number of middle uplink member carrier is L, and the bit number in up-link carrier number information territory is so

Step 303, subscriber equipment be according to the indication of base station equipment, obtain each downlink member carrier can downlink member carrier set and up-link carrier gather.

Step 304, subscriber equipment are monitored the PDCCH of downlink member carrier, according to downlink member carrier can downlink member carrier set and up-link carrier gather and carry out the PDCCH blind check.

Wherein, the bit number of the DCI of PDCCH is by S _DL ⁱSet and S _DL ^{I, UL}The bandwidth of the member carrier in the set and corresponding D CI format determination.With Fig. 4 is example, and subscriber equipment in blind check for the PDCCH on the CC 1, only with the blind check system bandwidth is ${\mathrm{<figure-callout\; id="1"\; label="S\; DL"\; filenames="H2009100908415E00031.png,H2009100908415E00041.png"\; state="\{\{state\}\}">S</figure-callout>}}_{\mathrm{DL}}^{}=\left\{\mathrm{1,2}\right\}$ The bit number of DCI under the various DCI forms of the bandwidth correspondence of the member carrier in the set, corresponding for the PDCCH on the CC 2, only with the blind check system bandwidth be ${\mathrm{<figure-callout\; id="2"\; label="S\; DL"\; filenames="H2009100908415E00031.png,H2009100908415E00041.png"\; state="\{\{state\}\}">S</figure-callout>}}_{\mathrm{DL}}^{}=\left\{\mathrm{1,2}\right\}$ The bit number of DCI under the various DCI forms of the bandwidth correspondence of the member carrier in the set, corresponding for the PDCCH on the CC 3, only with the blind check system bandwidth be ${\mathrm{<figure-callout\; id="3"\; label="S\; DL"\; filenames="H2009100908415E00031.png,H2009100908415E00041.png"\; state="\{\{state\}\}">S</figure-callout>}}_{\mathrm{DL}}^{}=\left\{\mathrm{3,4}\right\}$ The bit number of DCI under the various DCI forms of the bandwidth correspondence of the member carrier in the set, corresponding for the PDCCH on the CC 4, only with the blind check system bandwidth be ${\mathrm{<figure-callout\; id="4"\; label="S\; DL"\; filenames="H2009100908415E00031.png,H2009100908415E00041.png"\; state="\{\{state\}\}">S</figure-callout>}}_{\mathrm{DL}}^{}=\{3,4\}$ The bit number of DCI under the various DCI forms of the bandwidth correspondence of the member carrier in the set.

Need to prove that the inventive method can be adjusted each sequence of steps according to actual needs.

The technical scheme of the embodiment of the invention has the following advantages, because descending controlling schemes in a kind of carrier aggregation system is provided, has reduced effectively because the increase of the blind check number of times that the difference of the bandwidth of the member carrier of system's polymerization causes.

As shown in Figure 5, the control method flow chart for a kind of PDCCH in the embodiment of the invention three may further comprise the steps:

Step 501, base station equipment is divided into the downlink member carrier set with downlink member carriers all in the system.

Wherein, the downlink member carrier set can be expressed as S ₁, S ₂... .., S _N, the number N of set is determined by system, does not comprise mutually between each set, promptly satisfies constraints S ₁∩ S ₂∩ ... .. ∩ S _N=Φ and S ₁∪ S ₂∪ ... .. ∪ S _N=S, wherein, S represents the set of all downlink member carriers, each S set _iIn the bandwidth of member carrier can be identical also can be different, have only S set _iInterior member carrier is supported the indication of striding carrier dispatching of option 1b.

Step 502, base station equipment is by the set of SIB explicit notification downlink member carrier.

Particularly, base station equipment can adopt the mode indicating downlink member carrier collection of Bitmap.In addition, up member carrier collection can be according to the S set of downlink member carrier ₁, S ₂... .., S _N, set up according to the corresponding relation of up-downgoing, also can adopt the explicit signaling notice.As shown in Figure 6, be the controlling schemes schematic diagram of a kind of PDCCH in the embodiment of the invention three, system comprises 4 downlink member carriers, wherein, the bandwidth of downlink member carrier CC 1 and CC 2 is 20MHz, and the bandwidth of downlink member carrier CC 3 and CC 4 is 10MHz, base station equipment notice S ₁=1,2}, S ₂=3,4}, S ₁=1, can stride the scheduling of intercarrier, S between the CC of 2} inside ₂=3, can stride the scheduling of intercarrier between the CC of 4} inside.

Step 503, subscriber equipment are obtained downlink member carrier set and uplink member carrier set, and above-mentioned two carrier set are carried out the monitoring of PDCCH.

Wherein, for each S set _iThe CFI of interior downlink member carrier can be made as identical, thereby avoids the influence of CFI flase drop for the HARQ merging of PDSCH.For the PDCCH scheduling of subscriber equipment, dispatch all member carriers if desired, so must be at S ₁, S ₂... .., S _NEach set in select a downlink member carrier at least, be used to dispatch the member carrier in the set, corresponding DCI only detects the relevant DCI bit number of member carrier bandwidth in each set.Simultaneously, terminal is judged CFI according to the member carrier at dispatch place, and the CFI of PDSCH is identical with the member carrier of dispatch carrying, if the PCFICH flase drop on the PDCCH, the problem of the HARQ merging of PDSCH can not appear in dispatch flase drop so.

With reference to Fig. 6, terminal is for S set ₁=1, during the PDCCH blind check of the CC among the 2}, be S only with the blind check system bandwidth ₁=1, the bit number of the DCI in the 2} set under the various DCI forms of member carrier bandwidth correspondence.Terminal is for S set ₂=3, during the PDCCH blind check of the CC among the 4}, be S only with the blind check system bandwidth ₂=3, the bit number of the DCI in the 4} set under the various DCI forms of member carrier bandwidth correspondence.Wherein, be S ₁=1, the control area equal and opposite in direction in the 2}, S ₂=3, the control area equal and opposite in direction in the 4}.

Need to prove that the inventive method can be adjusted each sequence of steps according to actual needs.

The technical scheme of the embodiment of the invention has the following advantages, because descending controlling schemes in a kind of carrier aggregation system is provided, reduced effectively because the increase of the blind check number of times that the difference of the bandwidth of the member carrier of system's polymerization causes, simultaneously, improve subscriber equipment and merged the probability that is correctly decoded by HARQ.

As shown in Figure 7, the control method flow chart for a kind of PDCCH in the embodiment of the invention four may further comprise the steps:

Step 701, base station equipment is divided into the downlink member carrier set with downlink member carriers all in the system.

Wherein, the downlink member carrier set can be expressed as S ₁, S ₂... .., S _N, the number N of set is determined by system, does not comprise mutually between each set, promptly satisfies constraints S ₁∩ S ₂∩ ... .. ∩ S _N=Φ and S ₁∪ S ₂∪ ... .. ∪ S _N=S, wherein, S represents the set of all downlink member carriers, each S set _iIn the bandwidth of member carrier can be identical also can be different, have only S set _iInterior member carrier is supported the indication of striding carrier dispatching of option 1b.

Step 702, base station equipment is by the set of implicit expression notice downlink member carrier.

Particularly,, can adopt the mode of implicit expression notice, on scheduler, limit, just can only dispatch the member carrier of same band by the mode of option 1b for the identical situation of member carrier bandwidth in the set, be equivalent to implicit expression notice S set ₁, S ₂... .., S _NIf the bandwidth of each member carrier is different fully, the implicit expression notice is equivalent to the controlling schemes of option 1a so.In addition, up member carrier collection can be according to the S set of downlink member carrier ₁, S ₂... .., S _N, set up according to the corresponding relation of up-downgoing, also can adopt the explicit signaling notice.With reference to Fig. 6, system comprises 4 downlink member carriers, wherein, the bandwidth of downlink member carrier CC 1 and CC 2 is 20MHz, the bandwidth of downlink member carrier CC 3 and CC 4 is 10MHz, base station equipment is by the bandwidth of system, and the member carrier of knowing same band of implicit expression is a set, is equivalent to the S of having known of implicit expression ₁={ 1, the 2} bandwidth is 20MHz, S ₂={ 3, the 4} bandwidth is 10MHz, can stride the scheduling of intercarrier between descending CC 1 and the descending CC 2.

Step 703, subscriber equipment are obtained downlink member carrier set and uplink member carrier set, and above-mentioned two carrier set are carried out the monitoring of PDCCH.

Wherein, for each S set _iThe CFI of interior downlink member carrier can be made as identical, thereby avoids the influence of CFI flase drop for the HARQ merging of PDSCH.For the PDCCH scheduling of subscriber equipment, dispatch all member carriers if desired, so must be at S ₁, S ₂... .., S _NEach set in select a downlink member carrier at least, be used to dispatch the member carrier in the set, corresponding DCI only detects the relevant DCI bit number of member carrier bandwidth in each set.Simultaneously, terminal is judged CFI according to the member carrier at dispatch place, and the CFI of PDSCH is identical with the member carrier of dispatch carrying, if the PCFICH flase drop on the PDCCH, the problem of the HARQ merging of PDSCH can not appear in dispatch flase drop so.

With reference to Fig. 6, terminal is for S set ₁=1, during the PDCCH blind check of the CC among the 2}, only be the bit number of the DCI under the various DCI forms of 20MHz correspondence with the blind check system bandwidth.Terminal is for S set ₂=3, during the PDCCH blind check of the CC among the 4}, only be the bit number of the DCI under the various DCI forms of 10MHz correspondence with the blind check system bandwidth.Wherein, be S ₁=1, the control area equal and opposite in direction in the 2}, S ₂=3, the control area equal and opposite in direction in the 4}.

Need to prove that the inventive method can be adjusted each sequence of steps according to actual needs.

The technical scheme of the embodiment of the invention has the following advantages, because descending controlling schemes in a kind of carrier aggregation system is provided, reduced effectively because the increase of the blind check number of times that the difference of the bandwidth of the member carrier of system's polymerization causes, simultaneously, improve subscriber equipment and merged the probability that is correctly decoded by HARQ.

As shown in Figure 8, a kind of base station equipment structural representation in the embodiment of the invention five comprises:

Configuration module 810 is used to dispose and is used to stride the member carrier collection of dispatching between member carrier.

Notification module 820 is used for the member carrier collection notifying user equipment with configuration module 810 configurations, makes subscriber equipment carry out the PDCCH blind check according to this member carrier collection.

Above-mentioned member carrier collection comprises the downlink member carrier set, above-mentioned configuration module 810, specifically be used for the downlink member carrier that system is all and be divided into one or more downlink member carrier set, can stride the scheduling between member carrier between the downlink member carrier in the described downlink member carrier set.

Above-mentioned member carrier collection, also comprise the uplink member carrier set, above-mentioned configuration module 810, also be used for the uplink member carrier that system is all and be divided into one or more uplink member carrier set, the uplink member carrier in the described uplink member carrier set can be by the scheduling of the PDCCH in one or more downlink member carrier; Or

According to the corresponding relation between up/downlink member carrier, obtain described uplink member carrier set according to described downlink member carrier set.

Above-mentioned notification module 820 specifically is used for notifying described subscriber equipment by the system broadcasts control information with described downlink member carrier set and the set of described uplink member carrier, and the aggregate information of described member carrier is indicated by the mode of bit mapping bitmap.

Above-mentioned configuration module 810, the control format indication CFI that also is used for the downlink member carrier of described downlink member carrier set is set to identical, makes described subscriber equipment determine the CFI of PDSCH according to the CFI of the member carrier of dispatch carrying.

Above-mentioned configuration module 810 specifically is used for the downlink member carrier that bandwidth is identical and is configured to same downlink member carrier set; Or

According to the bandwidth of downlink member carrier, the scheduling relation between the restriction downlink member carrier makes subscriber equipment implicit expression obtain the downlink member carrier set.

Above-mentioned configuration module 810 specifically is used to each downlink member carrier to dispose the downlink member carrier set that described downlink member carrier can be dispatched.

Above-mentioned member carrier collection also comprises the uplink member carrier set, and above-mentioned configuration module 810 also is used to each downlink member carrier to dispose the uplink member carrier set that described downlink member carrier can be dispatched; Or

According to the corresponding relation between up/downlink member carrier, and the set of described downlink member carrier obtains described uplink member carrier set.

Above-mentioned notification module 820 specifically is used for notifying described subscriber equipment by the system broadcasts control information with described downlink member carrier set and the set of described uplink member carrier, and the aggregate information of described member carrier is indicated by the mode of bit mapping bitmap.

The technical scheme of the embodiment of the invention has the following advantages, because descending controlling schemes in a kind of carrier aggregation system is provided, has reduced effectively because the increase of the blind check number of times that the difference of the bandwidth of the member carrier of system's polymerization causes.

As shown in Figure 9, a kind of user device architecture schematic diagram in the embodiment of the invention six comprises:

Acquisition module 910, what be used to obtain the base station equipment configuration is used to stride the member carrier collection of dispatching between member carrier.

Detection module 920, the member carrier collection that is used for obtaining according to acquisition module 910 is carried out the PDCCH blind check.

Above-mentioned member carrier collection comprises uplink member carrier set and downlink member carrier set,

Above-mentioned detection module 920, specifically be used for bandwidth and corresponding D CI form according to the member carrier of described downlink member carrier set and the set of described uplink member carrier, obtain the bit number of the DCI of PDCCH, and carry out the PDCCH blind check according to the bit number of described DCI.

Above-mentioned detection module 920 also is used for determining according to the CFI of the member carrier of dispatch carrying the CFI of PDSCH.

The technical scheme of the embodiment of the invention has the following advantages, because descending controlling schemes in a kind of carrier aggregation system is provided, has reduced effectively because the increase of the blind check number of times that the difference of the bandwidth of the member carrier of system's polymerization causes.

As shown in figure 10, be the control system structural representation of a kind of PDCCH in the embodiment of the invention seven, comprise base station equipment 110 and subscriber equipment 120, wherein,

Base station equipment 110 is used for configuration member's carrier set, and described member carrier collection is used to stride between member carrier dispatches; With member carrier collection notifying user equipment 120, make subscriber equipment 120 carry out the PDCCH blind check according to described member carrier collection.

Subscriber equipment 120, what be used to obtain base station equipment 110 configurations is used to stride the member carrier collection of dispatching between member carrier; Carry out the PDCCH blind check according to the member carrier collection of obtaining.

The technical scheme of the embodiment of the invention has the following advantages, because descending controlling schemes in a kind of carrier aggregation system is provided, has reduced effectively because the increase of the blind check number of times that the difference of the bandwidth of the member carrier of system's polymerization causes.

Through the above description of the embodiments, those skilled in the art can be well understood to the present invention and can realize by the mode that software adds essential general hardware platform, can certainly pass through hardware, but the former is better execution mode under a lot of situation.Based on such understanding, the part that technical scheme of the present invention contributes to prior art in essence in other words can embody with the form of software product, this computer software product is stored in the storage medium, comprise that some instructions are with so that a station terminal equipment (can be mobile phone, personal computer, server, the perhaps network equipment etc.) carry out the described method of each embodiment of the present invention.

The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be looked protection scope of the present invention.

It will be appreciated by those skilled in the art that the module in the device among the embodiment can be distributed in the device of embodiment according to the embodiment description, also can carry out respective change and be arranged in the one or more devices that are different from present embodiment.The module of the foregoing description can be integrated in one, and also can separate deployment, can merge into a module, also can further split into a plurality of submodules.

The invention described above embodiment sequence number is not represented the quality of embodiment just to description.

More than disclosed only be several specific embodiment of the present invention, still, the present invention is not limited thereto, any those skilled in the art can think variation all should fall into protection scope of the present invention.

Claims (16)

1. the control method of a physical downlink control channel PDCCH is characterized in that, may further comprise the steps:

The base station equipment configuration is used to stride the member carrier collection of dispatching between member carrier;

Described base station equipment makes described subscriber equipment carry out the PDCCH blind check according to described member carrier collection described member carrier collection notifying user equipment;

Wherein, described member carrier collection comprises the downlink member carrier set, and described base station equipment configuration is used to stride the member carrier collection of dispatching between member carrier, specifically comprises:

Described base station equipment is divided into one or more downlink member carrier set with downlink member carriers all in the system, can stride the scheduling between member carrier between the downlink member carrier in the described downlink member carrier set, or described base station equipment is that downlink member carrier disposes the downlink member carrier set that described downlink member carrier can be dispatched.

2. the method for claim 1, it is characterized in that, described member carrier collection, also comprise the uplink member carrier set, the configuration of described base station equipment is used for striding the member carrier collection of dispatching between member carrier and is specially the described base station equipment downlink member carrier that system is all and is divided into one or more downlink member carrier set, in the time of can striding the scheduling between member carrier between the downlink member carrier in the described downlink member carrier set

Described base station equipment is divided into one or more uplink member carrier set with uplink member carrier all in the system, and the uplink member carrier in the described uplink member carrier set can be by the scheduling of the PDCCH in one or more downlink member carrier; Or

According to the corresponding relation between up/downlink member carrier, obtain described uplink member carrier set according to described downlink member carrier set.

3. the method for claim 1, it is characterized in that, described member carrier collection, also comprise the uplink member carrier set, the configuration of described base station equipment is used to stride the member carrier collection of dispatching between member carrier, and to be specially described base station equipment be that downlink member carrier is when disposing the downlink member carrier set that described downlink member carrier can dispatch

Described base station equipment is that downlink member carrier disposes the uplink member carrier set that described downlink member carrier can be dispatched; Or

According to the corresponding relation between up/downlink member carrier, and the set of described downlink member carrier obtains described uplink member carrier set.

4. as claim 2 or 3 described methods, it is characterized in that described base station equipment specifically comprises described member carrier collection notifying user equipment:

Described base station equipment is notified described subscriber equipment by the system broadcasts control information with described downlink member carrier set and the set of described uplink member carrier, and the aggregate information of described member carrier is indicated by the mode of bit mapping bitmap.

5. the method for claim 1, it is characterized in that, the configuration of described base station equipment is used for striding the member carrier collection of dispatching between member carrier and is specially the described base station equipment downlink member carrier that system is all and is divided into one or more downlink member carrier set, in the time of can striding the scheduling between member carrier between the downlink member carrier in the described downlink member carrier set

The control format indication CFI of the downlink member carrier in the described downlink member carrier set is set to identical;

Described subscriber equipment is determined the CFI of Physical Downlink Shared Channel PDSCH according to the CFI of the member carrier of dispatch carrying.

6. as claim 2 or 3 described methods, it is characterized in that described subscriber equipment carries out the PDCCH blind check according to described member carrier collection, specifically comprises:

Described subscriber equipment is according to the bandwidth and the corresponding downstream control information DCI form of the member carrier in described downlink member carrier set and the set of described uplink member carrier, obtain the bit number of the DCI of PDCCH, and carry out the PDCCH blind check according to the bit number of described DCI.

7. the method for claim 1 is characterized in that, described base station equipment is divided into one or more downlink member carrier set with downlink member carriers all in the system, specifically comprises:

The downlink member carrier that described base station equipment is identical with bandwidth is configured in the same downlink member carrier set; Or

Described base station equipment limits the scheduling relation between the described downlink member carrier according to the bandwidth of downlink member carrier, makes described subscriber equipment implicit expression obtain the downlink member carrier set.

8. a base station equipment is characterized in that, comprising:

Configuration module is used to dispose and is used to stride the member carrier collection of dispatching between member carrier;

Notification module is used for the described member carrier collection notifying user equipment with described configuration module configuration, makes described subscriber equipment carry out the PDCCH blind check according to described member carrier collection;

Wherein, described member carrier collection comprises the downlink member carrier set, described configuration module specifically is used for, downlink member carriers all in the system is divided into one or more downlink member carrier set, can stride the scheduling between member carrier between the downlink member carrier in the described downlink member carrier set, or, for downlink member carrier disposes the downlink member carrier set that described downlink member carrier can be dispatched.

9. as base station equipment as described in the claim 8, it is characterized in that, described member carrier collection, also comprise the uplink member carrier set, described configuration module specifically is used for the downlink member carrier that system is all and is divided into one or more downlink member carrier set, in the time of can striding the scheduling between member carrier between the downlink member carrier in the described downlink member carrier set

Also be used for the uplink member carrier that system is all and be divided into one or more uplink member carrier set, the uplink member carrier in the described uplink member carrier set can be by the scheduling of the PDCCH in one or more downlink member carrier; Or

According to the corresponding relation between up/downlink member carrier, obtain described uplink member carrier set according to described downlink member carrier set.

10. as base station equipment as described in the claim 8, it is characterized in that, described member carrier collection, also comprise the uplink member carrier set, when described configuration module specifically is used to downlink member carrier to dispose the downlink member carrier set that described downlink member carrier can dispatch, also be used to downlink member carrier to dispose the uplink member carrier set that described downlink member carrier can be dispatched; Or

According to the corresponding relation between up/downlink member carrier, and the set of described downlink member carrier obtains described uplink member carrier set.

11. as claim 9 or 10 base station equipment as described in each, it is characterized in that,

Described notification module specifically is used for notifying described subscriber equipment by the system broadcasts control information with described downlink member carrier set and the set of described uplink member carrier, and the aggregate information of described member carrier is indicated by the mode of bit mapping bitmap.

12. as base station equipment as described in the claim 8, it is characterized in that, described configuration module specifically is used for the downlink member carrier that system is all and is divided into one or more downlink member carrier set, in the time of can striding the scheduling between member carrier between the downlink member carrier in the described downlink member carrier set, the control format indication CFI that also is used for the downlink member carrier of described downlink member carrier set is set to identical, makes described subscriber equipment determine the CFI of PDSCH according to the CFI of the member carrier of dispatch carrying.

13. a subscriber equipment is characterized in that, comprising:

Acquisition module, what be used to obtain the base station equipment configuration is used to stride the member carrier collection of dispatching between member carrier;

Detection module is used for carrying out the PDCCH blind check according to the described member carrier collection that described acquisition module obtains;

Wherein, described member carrier collection comprises the downlink member carrier set, can stride the scheduling between member carrier between the downlink member carrier in the described downlink member carrier set, or described member carrier collection is that base station equipment is the downlink member carrier set that the described downlink member carrier of downlink member carrier configuration can be dispatched.

14., it is characterized in that described member carrier collection also comprises the uplink member carrier set as subscriber equipment as described in the claim 13,

Described detection module, specifically be used for bandwidth and corresponding D CI form according to the member carrier of described downlink member carrier set and the set of described uplink member carrier, obtain the bit number of the DCI of PDCCH, and carry out the PDCCH blind check according to the bit number of described DCI.

15. as subscriber equipment as described in claim 13 or 14, it is characterized in that,

Described detection module also is used for determining according to the CFI of the member carrier of dispatch carrying the CFI of PDSCH.

16. the control system of a PDCCH comprises base station equipment and subscriber equipment, it is characterized in that,

Described base station equipment is used for configuration member's carrier set, and described member carrier collection is used to stride between member carrier dispatches; With described member carrier collection notifying user equipment, make described subscriber equipment carry out the PDCCH blind check according to described member carrier collection; Wherein, described member carrier collection comprises the downlink member carrier set, and described base station equipment configuration is used to stride the member carrier collection of dispatching between member carrier, specifically comprises:

Described base station equipment is divided into one or more downlink member carrier set with downlink member carriers all in the system, can stride the scheduling between member carrier between the downlink member carrier in the described downlink member carrier set, or described base station equipment is that downlink member carrier disposes the downlink member carrier set that described downlink member carrier can be dispatched;

Described subscriber equipment, what be used to obtain described base station equipment configuration is used to stride the member carrier collection of dispatching between member carrier; Carry out the PDCCH blind check according to the described member carrier collection of obtaining.

Images