CN102164416A - Method, system and equipment for transmitting data - Google Patents
Method, system and equipment for transmitting data Download PDFInfo
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- CN102164416A CN102164416A CN2011101132292A CN201110113229A CN102164416A CN 102164416 A CN102164416 A CN 102164416A CN 2011101132292 A CN2011101132292 A CN 2011101132292A CN 201110113229 A CN201110113229 A CN 201110113229A CN 102164416 A CN102164416 A CN 102164416A
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Abstract
The embodiment of the invention relates to the technical field of wireless communications, in particular to a method, a system and equipment for transmitting data, which are used for transmitting data through enhanced physical downlink control channel (PDCCH). The method for transmitting data comprises the following steps that: a network side configures transmission information of the enhanced PDCCH and/or channel resources of a candidate PDCCH, wherein the frequency of blind test of the PDCCH in a configured PDCCH search space is not higher than that of the PDCCH in a dedicated PDCCH search space of user equipment; and the network side transmits data through the configured PDCCH. Because the frequency of blind test of the PDCCH in the configured PDCCH search space is not higher than that of the PDCCH in the dedicated PDCCH search space of the user equipment, the frequency of blind test of the PDCCH, and the complexity of implementing the user equipment can be further reduced effectively on the basis of the enhanced PDCCH.
Description
Technical field
The present invention relates to wireless communication technology field, particularly a kind of method of transfer of data, system and equipment.
Background technology
At LTE (Long Term Evolution, Long Term Evolution) in the system, PDCCH (physical downlink control channel, Physical Downlink Control Channel) in each wireless sub-frame, sends, and form the multiplexing relation of TDM (Time Division Multiple, time division multiplexing) with downlink data PDSCH.
The control area of transmission PDCCH is to be made of the CCE (Control Channel Element, control channel unit) of logical partitioning in the LTE system, and wherein CCE has adopted the mode that interweaves fully to the mapping of RE (Resource element, Resource Unit).DCI (Downlink Control Information, Downlink Control Information) it is unit that transmission also is based on CCE, a DCI at a UE (subscriber equipment) can send in N continuous CCE, the possible value of N is 1 in the LTE system, 2,4,8, be called CCE polymerization grade (Aggregation Level).UE carries out the PDCCH blind check in the control area, whether search exists the PDCCH at its transmission, RNTI (the Radio Network Temporary Identifier of UE is promptly used in blind check, Radio Network Temporary Identifier symbol) to the trial of decoding of different DCI forms and CCE polymerization grade, if decoding is correct, then receive DCI at this UE.LTEUE each descending sub frame in non-DRX (Discontinuous Reception, discontinuous reception) state all needs blind check is carried out in the control area, search PDCCH.
Control area in the LTE system in subframe is made of two spaces, promptly the common search space (Common Search Space, CSS) and the user-specific search volume (UE-specific Search Space, UESS).The DCI of the wherein exclusive control information in main users transmitting and scheduling sub-district, common search space (for example system information, beep-page message, multicast-power control information etc.), the user-specific search volume is mainly used in the DCI of transmission at each UE scheduling of resource.The common search space comprises preceding 16 CCE in each descending sub frame, and CCE polymerization grade is only supported 4,8 two kinds in the common search space; The RNTI of the initial CCE position of the UE search volume of each user-specific and subframe numbering, UE etc. is relevant in each descending sub frame, support CCE polymerization grade 1,2,4,8 in the user-specific search volume.In UESS, the corresponding search volume of the blind check of each polymerization grade, the different polymerization grade of UE blind check just is to carry out in different search volumes.Table 1 has provided a UE needs blind check in a descending sub frame CCE space, and wherein L represents the size of polymerization grade, and Size represents that corresponding every kind of polymerization grade size needs the CCE number of blind check, M
(L)The blind check number of attempt of then representing corresponding every kind of polymerization grade size.
1: one UE of form needs the CCE space of blind check in a descending sub frame
According to shown in the table 1, a UE needs to carry out the trial of 22 PDCCH channel resources in a descending sub frame, common search space totally 6 PDCCH channel resources wherein, and the user-specific search volume is totally 16 PDCCH channel resources.
The blind check number of times of corresponding its PDCCH is:
CSS：(4+2)×2＝12；
UESS: two kinds of situations are arranged:
Do not support UL-MIMO (up multiple-input, multiple-output) situation, its blind check number of times is (6+6+2+2) * 2=32;
Support the UL-MIMO situation, its blind check number of times is (6+6+2+2) * 3=48.
Its overall blind check number of times is:
CSS+UESS＝12+32/48＝44/60
At present LTE and LTE-A (Long Term Evolution-Advanced, long-term evolution upgrading) in the system, for satisfying the dispatch increased requirement of user capacity and interference increasement, consideration is made to a certain degree enhancing to control channel, such as the PDCCH enhanced scheme that is similar to the R-PDCCH that supports in Relay (relaying) system.
The PDCCH of Relay system and PDSCH resource structures figure such as Fig. 1, wherein the R-PDCCH of Relay system is used for the base station to the Relay control channel, and R-PDSCH is used for Relay and transmits data to UE.In order in non-Relay system, to increase the capacity of control channel, such scheme also can be incorporated in the non-Relay system.The base station can be separated a part of resource and is used for the control channel to UE in PDSCH (Physical Downlink Shared Channel, downlink physical shared channel), be called " strengthening the PDCCH zone ".
In the definition of R-PDCCH, it does not comprise the common search space, has only the exclusive R-PDCCH search volume of relay, and its DL grant (descending scheduling) and UL grant (uplink scheduling) be transmission separately.
Wherein Relay is when monitoring R-PDCCH, in DL grant zone and UL grant zone, needs the number of the candidate R-PDCCH that monitors as shown in table 1 under the corresponding polymerization equivalence:
| ?Aggregation?levelΛ | Number?of?R-PDCCH?candidatesM(Λ) |
| ?1 | 6 |
| ?2 | 6 |
| ?4 | 2 |
| ?8 | 2 |
The number M (Λ) of the candidate channel under the table 2:R-PDCCH polymerization grade Λ
According to the definition of above-mentioned R-PDCCH, as can be seen for Relay, the blind check number of times of its R-PDCCH in the exclusive search volume of Relay is:
DL grant zone: need blind check DCI format 1A and a kind of DCI form relevant respectively, so the blind check number of times is (6+6+2+2) * 2=32 with transmission mode;
UL grant zone: if up support UL MIMO, needing blind check DCI format 0 and DCI format 4 its blind check number of times respectively is (6+6+2+2) * 2=32, if do not support UL MIMO, only need blind check DCI format 0, its blind check number of times is (6+6+2+2) * 1=16, whether supports that wherein UL MIMO is that terminal capability reports and need be notified to eNB.
The overall blind check number of times of the exclusive search volume of Relay is:
Up support UL MIMO:32+32=64;
The up UL MIMO:32+16=48 that do not support.
From top analysis as can be seen, if in follow-up enhancing PDCCH, continue to use the definition among the existing R-PDCCH fully, in strengthening the PDCCH search volume, the blind check number of times (48/64) of its PDCCH can be greater than the PDCCH blind check number of times (32/48) that has now in the exclusive PDCCH search volume of the middle UE that defines of LTE Rel-10 (version 10) so.
In sum, enhancing PDCCH can't continue to use the configuration mode among the R-PDCCH, makes to transmit on enhancing PDCCH.
Summary of the invention
The method of a kind of transfer of data that the embodiment of the invention provides, system and equipment are in order to carry out transfer of data by strengthening PDCCH.
A kind of data transmission method that the embodiment of the invention provides comprises:
Network side is configured the transmission information of enhancing physical downlink control channel PDCCH and/or the channel resource of candidate PDCCH, and the blind check number of times of PDCCH is not more than the blind check number of times of PDCCH in the exclusive PDCCH of the subscriber equipment search volume in the PDCCH search volume after wherein disposing;
Described network side carries out transfer of data by the PDCCH after disposing.
Another data transmission method that the embodiment of the invention provides comprises:
Subscriber equipment is according to the transmission information of the enhancing PDCCH of configuration and/or the channel resource of candidate PDCCH, carry out blind check to strengthening PDCCH, the blind check number of times of PDCCH is not more than the blind check number of times of PDCCH in the exclusive PDCCH of the subscriber equipment search volume in the PDCCH search volume after wherein disposing;
Described subscriber equipment receives data by blind check on enhancing PDCCH.
A kind of data transmission set that the embodiment of the invention provides comprises:
Configuration module is used for the transmission information of enhancing PDCCH and/or the channel resource of candidate PDCCH are configured, and the blind check number of times of PDCCH is not more than the blind check number of times of PDCCH in the exclusive PDCCH of the subscriber equipment search volume in the PDCCH search volume after wherein disposing;
Transport module is used for carrying out transfer of data by the PDCCH after the configuration.
Another data transmission set that the embodiment of the invention provides comprises:
The blind check module, be used for according to the transmission information of the enhancing PDCCH that disposes and/or the channel resource of candidate PDCCH, carry out blind check to strengthening PDCCH, the blind check number of times of PDCCH is not more than the blind check number of times of PDCCH in the exclusive PDCCH of the subscriber equipment search volume in the PDCCH search volume after wherein disposing;
Receiver module is used for receiving data by blind check on enhancing PDCCH.
A kind of data transmission system that the embodiment of the invention provides comprises:
Network equipment, be used for the transmission information of enhancing physical downlink control channel PDCCH and/or the channel resource of candidate PDCCH are configured, carry out transfer of data by the PDCCH after the configuration, the blind check number of times of PDCCH is not more than the blind check number of times of PDCCH in the exclusive PDCCH of the subscriber equipment search volume in the PDCCH search volume after wherein disposing;
Subscriber equipment is used for according to the transmission information of the enhancing PDCCH that disposes and/or the channel resource of candidate PDCCH, carries out blind check to strengthening PDCCH, receives data by blind check on enhancing PDCCH.
Because the blind check number of times of PDCCH is not more than the blind check number of times of PDCCH in the exclusive PDCCH of the subscriber equipment search volume in the PDCCH search volume after the configuration, thereby on the basis that strengthens PDCCH, can further effectively reduce the blind check number of times of PDCCH, and with and equipment implementing complexity.
Description of drawings
Fig. 1 is the resource structures figure schematic diagram of background technology;
Fig. 2 is the system configuration schematic diagram of embodiment of the invention transfer of data;
Fig. 3 is the device structure schematic diagram of first kind of transfer of data of the embodiment of the invention;
Fig. 4 is the device structure schematic diagram of second kind of transfer of data of the embodiment of the invention;
Fig. 5 is the method flow schematic diagram of first kind of transfer of data of the embodiment of the invention;
Fig. 6 is the method flow schematic diagram of second kind of transfer of data of the embodiment of the invention;
Fig. 7 is the resource structures figure schematic diagram of the embodiment of the invention.
Embodiment
The inventor finds in the design process of Relay, because DL grant and UL grant separate on time slot, therefore its blind check number of times in a time slot is consistent with UE among the Rel-8/10, but in a subframe, and its blind check number of times is above the blind check number of times of ordinary terminal.The complexity of considering Relay is higher than UE, so this wants maximum blind check number of times to stagger in different time-gap, is acceptable for Relay.But for UE, can increase extra complexity.Consider that simultaneously DL grant:DCI format 1A has identical information bit with UL grant:DCI format 0, the blind check of these two DCI forms is separately done, reduced the efficient of UE blind check.
Embodiment of the invention network side is configured the transmission information of enhancing PDCCH and/or the channel resource of candidate PDCCH, subscriber equipment is according to the transmission information of the enhancing PDCCH of configuration and/or the channel resource of candidate PDCCH, carry out blind check to strengthening PDCCH, the blind check number of times of PDCCH is not more than the blind check number of times of PDCCH in the exclusive PDCCH of the subscriber equipment search volume in the PDCCH search volume after wherein disposing.Because the blind check number of times of PDCCH is not more than the blind check number of times of PDCCH in the exclusive PDCCH of the subscriber equipment search volume in the PDCCH search volume after the configuration, thereby on the basis that strengthens PDCCH, can further effectively reduce the blind check number of times of PDCCH, and with and equipment implementing complexity.
Below in conjunction with accompanying drawing the specific embodiment of the present invention is described.
In the declarative procedure below, implement to describe from the cooperation of network side and user equipment side earlier, describe from the enforcement of network side and user equipment side respectively at last, but this does not also mean that the two must cooperate enforcement, in fact, separate when implementing, also solved respectively in network side and the existing problem of user equipment side when network side and user equipment side, when just the two is used in combination, can obtain better technique effect.
As shown in Figure 2, the system of embodiment of the invention transfer of data comprises: network equipment 10 and subscriber equipment 20.
10 pairs of network equipments strengthen the transmission information of PDCCH and/or the channel resource of candidate PDCCH is configured the three kinds of situations that comprise: 1, only adopt the scheme of the embodiment of the invention that the transmission information that strengthens PDCCH is configured; 2, the scheme that only adopts the embodiment of the invention is configured the channel resource of candidate PDCCH; 3, adopt the scheme of the embodiment of the invention that the transmission information of enhancing PDCCH and the channel resource of candidate PDCCH are configured.Be introduced respectively below.
Mode one, the scheme that only adopts the embodiment of the invention are configured the transmission information that strengthens PDCCH.
Preferable, the DCI format 0 that network equipment 10 will be used for the DCI form of dispatching downlink PDSCH transmission and be used for dispatching uplink PUSCH transmission transmits at first time slot that strengthens PDCCH zone subframe, and other DCI forms that will be used for dispatching uplink PUSCH transmit in second time slot that strengthens PDCCH zone subframe.Specifically can be referring to Fig. 7.
Accordingly, blind check is used for the DCI form of dispatching downlink PDSCH transmission and the DCI format 0 of dispatching uplink PUSCH transmission in first time slot of subscriber equipment 20 subframe in strengthening the PDCCH zone, and blind check is used for other DCI forms of dispatching uplink PUSCH in second time slot of subframe in strengthening the PDCCH zone.
Preferable, in the employing mode for the moment, the concrete configuration configuration of the transmission information that strengthens PDCCH (promptly to) can stipulate in agreement, also can be by network equipment 10 informing user terminals 20.
If by network equipment 10 informing user terminals 20, then user terminal 20 carries out the transmission information that blind check receives the enhancing PDCCH of network side notice before.
The scheme of giving one example below to mode one describes:
If continue to use the setting of candidate channel among the R-PDCCH, just corresponding to the polymerization grade 1,2,4,8}, the number of its candidate PDCCH channel be 6,6,2,2}, the blind check number of times of subscriber equipment 20 is so:
DL grant+UL grant (DCI format 0) zone (i.e. first time slot in strengthening the PDCCH zone, specifically can be referring to Fig. 7): need blind check DCI format 0 respectively, DCI format 1A and the DCI foramt X (for example: with Closed-Loop Spatial Multiplexing transmission mode corresponding DCI form be DCI format 2) corresponding with the downlink transfer pattern, therefore the blind check number of times is (6+6+2+2) * 2=32 (length that identical information bit is arranged owing to DCI format0 and DCI format 1A, in blind check, only be concerned about the length of information bit, therefore remain 2 blind checks);
UL grant zone (i.e. second time slot in strengthening the PDCCH zone, specifically can be referring to Fig. 7): if up support UL MIMO, only need other DCI forms that blind check is used for dispatching uplink PUSCH (for example: DCI format 4), its blind check number of times is (6+6+2+2) * 1=16, if do not support ULMIMO, its blind check number of times is 0.
In strengthening PDCCH, total blind check number of times of subscriber equipment 20 is:
Up support UL MIMO:32+16=48;
The up UL MIMO:32+0=32 that do not support.
As can be seen, the blind check number of times of mode one in the exclusive PDCCH search volume of subscriber equipment is consistent with blind check number of times in the exclusive PDCCH search volume of the subscriber equipment of LTE Rel-10.
Mode two, the scheme that only adopts the embodiment of the invention are configured the channel resource of candidate PDCCH.
Preferable, network equipment 10 configurations strengthen the PDCCH candidate channel number of each polymerization grade among the PDCCH, make the summation of the summation of the candidate PDCCH channel number after the configuration less than PDCCH candidate channel number in the exclusive search volume of subscriber equipment.
Accordingly, subscriber equipment 20 carries out blind check according to the PDCCH candidate channel number of each polymerization grade among the enhancing PDCCH of configuration on each candidate PDCCH.
Preferable, when employing mode two, concrete configuration (promptly strengthening the PDCCH candidate channel number of each polymerization grade among the PDCCH) can be stipulated (promptly preestablishing) in agreement, also can be by network equipment 10 informing user terminals 20.
If by network equipment 10 informing user terminals 20, then user terminal 20 carries out receiving before the blind check PDCCH candidate channel number of each polymerization grade among the enhancing PDCCH of network side notice.
The scheme of giving one example below to mode two describes:
In the DL grant zone, { 1,2,4, the number of the candidate PDCCH channel of 8} is { 4,4 corresponding to the polymerization grade for it, 1., 1}, in the UL grant zone, it is corresponding to polymerization grade { 1,2,4, the number of the candidate PDCCH channel of 8} be 4,4,1,1}, the blind check number of times of subscriber equipment 20 is so:
DL grant zone (i.e. first time slot in strengthening the PDCCH zone, specifically can referring to Fig. 1): need blind check DCI format 1A and a kind of DCI form corresponding respectively, so the blind check number of times is (4+4+1+1) * 2=20 with transmission mode;
UL grant zone (i.e. second time slot in strengthening the PDCCH zone, specifically can be referring to Fig. 1): if up support UL MIMO, (for example: DCI format 4) need blind check DCI format 0 and a kind of DCI form corresponding with uplink transmission mode, its blind check number of times is (4+4+1+1) * 2=20, if do not support UL MIMO, only need blind check DCI format 0, its blind check number of times is (4+4+1+1) * 1=10.
In strengthening PDCCH, total blind check number of times of subscriber equipment 20 is:
Up support UL MIMO:20+20=40;
The up UL MIMO:20+10=30 that do not support.
As can be seen, the blind check number of times in the PDCCH search volume exclusive of the blind check number of times in the exclusive PDCCH search volume of subscriber equipment less than the subscriber equipment of LTERel-10.
The scheme of mode three, the employing embodiment of the invention is configured the transmission information of enhancing PDCCH and the channel resource of candidate PDCCH.
Preferable, the DCI form that network equipment 10 will be used for dispatching downlink PDSCH transmission transmits at first time slot that strengthens PDCCH zone subframe with the DCI format 0 that is used for dispatching uplink PUSCH transmission, and other DCI forms that will be used for dispatching uplink PUSCH transmit in second time slot that strengthens PDCCH zone subframe, and the PDCCH candidate channel number of determining to strengthen each polymerization grade among the PDCCH.
Accordingly, subscriber equipment 20 is according to the PDCCH candidate channel number of each polymerization grade among the enhancing PDCCH of configuration, blind check is used for the DCI form of dispatching downlink PDSCH transmission and the DCI format 0 of dispatching uplink PUSCH transmission in first time slot of subframe in strengthening the PDCCH zone, and blind check is used for other DCI forms of dispatching uplink PUSCH in second time slot of subframe in strengthening the PDCCH zone.
Preferable, when employing mode three, concrete configuration can stipulate in agreement, also can be by network equipment 10 informing user terminals 20.
The concrete configuration here can be the configuration to the channel resource of the configuration of the transmission information that strengthens PDCCH and/or candidate PDCCH.
If by network equipment 10 informing user terminals 20, then user terminal 20 carry out receiving before the blind check network side notice enhancing PDCCH transmission information and/or strengthen the PDCCH candidate channel number of each polymerization grade among the PDCCH.
The summation of the candidate PDCCH channel number after the configuration in the mode three is less than the not necessarily non-summation that is less than PDCCH candidate channel number in the exclusive search volume of subscriber equipment of the summation of PDCCH candidate channel number in the exclusive search volume of subscriber equipment, and the blind check number of times that needs only PDCCH in the PDCCH search volume after guaranteeing to dispose is not more than the blind check number of times of PDCCH in the exclusive PDCCH of the subscriber equipment search volume.
The scheme of giving one example below to mode three describes:
To the number of DL grant+UL grant (DCI format 0) zone and UL grant area configurations candidate PDCCH channel, for example in the DL grant zone, it is corresponding to polymerization grade { 1 respectively, 2,4, the number of the candidate PDCCH channel of 8} is { 3,3,1,1}, in the UL grant zone, it is corresponding to polymerization grade { 1,2,4, the number of the candidate PDCCH channel of 8} is { 3,3,1,1}, its blind check number of times is so:
DL grant+UL grant (DCI format 0) zone (i.e. first time slot in strengthening the PDCCH zone, specifically can be referring to Fig. 7): need blind check DCI format 0, DCI format 1A and the DCI foramt X (for example: with Closed-Loop Spatial Multiplexing transmission mode corresponding DCI form be DCI format 2) corresponding respectively, so the blind check number of times is (3+3+1+1) * 2=16 with the downlink transfer pattern;
UL grant zone (i.e. second time slot in strengthening the PDCCH zone, specifically can be referring to Fig. 7): if up support UL MIMO, only need other DCI forms that blind check is used for dispatching uplink PUSCH (for example: DCI format 4), its blind check number of times is (3+3+1+1) * 1=8, if do not support UL MIMO, its blind check number of times is 0;
In strengthening PDCCH, total blind check number of times of subscriber equipment 20 is:
Up support UL MIMO:16+8=24;
The up UL MIMO:16+0=16 that do not support.
As can be seen, the blind check number of times in the blind check number of times of mode three in the exclusive PDCCH search volume of the subscriber equipment PDCCH search volume exclusive less than the subscriber equipment of LTE Rel-10.
Need to prove, the embodiment of the invention is not limited to above-mentioned three kinds of modes, and the alternate manner that the blind check number of times of PDCCH is not more than the blind check number of times of PDCCH in the exclusive PDCCH of the subscriber equipment search volume in the PDCCH search volume after the configuration all is suitable for the embodiment of the invention.
Wherein, the network equipment of the embodiment of the invention can be base station (such as macro base station, a Home eNodeB etc.), also can be RN (relaying) equipment, can also be other network equipment.
Based on same inventive concept, the equipment of transfer of data and the method for transfer of data also are provided in the embodiment of the invention, because the principle that these equipment and method are dealt with problems and the system similarity of transfer of data, therefore the enforcement of these equipment and method can repeat part and repeat no more referring to the enforcement of system.
As shown in Figure 3, the equipment of first kind of transfer of data of the embodiment of the invention (being network equipment) comprising: configuration module 100 and transport module 110.
Preferable, the DCI format 0 that configuration module 100 will be used for the DCI form of dispatching downlink PDSCH transmission and be used for dispatching uplink PUSCH transmission transmits at first time slot that strengthens PDCCH zone subframe, and other DCI forms that will be used for dispatching uplink PUSCH transmit in second time slot that strengthens PDCCH zone subframe.
Preferable, configuration module 100 configurations strengthen the PDCCH candidate channel number of each polymerization grade among the PDCCH, make the summation of the summation of the candidate PDCCH channel number after the configuration less than PDCCH candidate channel number in the exclusive search volume of subscriber equipment.
Preferable, the DCI format 0 that configuration module 100 will be used for the DCI form of dispatching downlink PDSCH transmission and be used for dispatching uplink PUSCH transmission transmits at first time slot that strengthens PDCCH zone subframe, and other DCI forms that will be used for dispatching uplink PUSCH transmit in second time slot that strengthens PDCCH zone subframe; And the PDCCH candidate channel number of determining to strengthen each polymerization grade among the PDCCH.
Preferable, transport module 110 is undertaken before the transfer of data by the PDCCH after disposing, and notifying user equipment strengthens the PDCCH candidate channel number of each polymerization grade among the PDCCH.
As shown in Figure 4, the equipment of second kind of transfer of data of the embodiment of the invention (being subscriber equipment) comprising: blind check module 200 and receiver module 210.
Blind check module 200, be used for according to the transmission information of the enhancing PDCCH that disposes and/or the channel resource of candidate PDCCH, carry out blind check to strengthening PDCCH, the blind check number of times of PDCCH is not more than the blind check number of times of PDCCH in the exclusive PDCCH of the subscriber equipment search volume in the PDCCH search volume after wherein disposing.
Receiver module 210 is used for receiving data by blind check on enhancing PDCCH.
Preferable, blind check is used for the DCI form of dispatching downlink PDSCH transmission and the DCI format 0 of dispatching uplink PUSCH transmission in first time slot of blind check module 200 subframe in strengthening the PDCCH zone, and blind check is used for other DCI forms of dispatching uplink PUSCH in second time slot of subframe in strengthening the PDCCH zone.
Preferable, blind check module 200 is carried out blind check according to the PDCCH candidate channel number of each polymerization grade among the enhancing PDCCH of configuration on each candidate PDCCH;
Wherein, the summation of the candidate PDCCH channel number after the configuration is less than the summation of PDCCH candidate channel number in the exclusive search volume of subscriber equipment.
Preferable, blind check module 200 is according to the PDCCH candidate channel number of each polymerization grade among the enhancing PDCCH of configuration, blind check is used for the DCI form of dispatching downlink PDSCH transmission and the DCI format 0 of dispatching uplink PUSCH transmission in first time slot of subframe in strengthening the PDCCH zone, and blind check is used for other DCI forms of dispatching uplink PUSCH in second time slot of subframe in strengthening the PDCCH zone.
Preferable, blind check module 200 carries out receiving before the blind check PDCCH candidate channel number of each polymerization grade among the enhancing PDCCH of network side notice.
As shown in Figure 5, the method for first kind of transfer of data of the embodiment of the invention comprises the following steps:
Network side is configured the three kinds of situations that comprise to the transmission information of enhancing PDCCH and/or the channel resource of candidate PDCCH: 1, only adopt the scheme of the embodiment of the invention that the transmission information that strengthens PDCCH is configured; 2, the scheme that only adopts the embodiment of the invention is configured the channel resource of candidate PDCCH; 3, adopt the scheme of the embodiment of the invention that the transmission information of enhancing PDCCH and the channel resource of candidate PDCCH are configured.Be introduced respectively below.
Mode one, the scheme that only adopts the embodiment of the invention are configured the transmission information that strengthens PDCCH.
Preferable, the DCI format 0 that network side will be used for the DCI form of dispatching downlink PDSCH transmission and be used for dispatching uplink PUSCH transmission in the step 501 transmits at first time slot that strengthens PDCCH zone subframe, and other DCI forms that will be used for dispatching uplink PUSCH transmit in second time slot that strengthens PDCCH zone subframe.Specifically can be referring to Fig. 7.
Preferable, in the employing mode for the moment, the concrete configuration configuration of the transmission information that strengthens PDCCH (promptly to) can stipulate in agreement, also can be by the network side informing user terminal.
If by the network side informing user terminal, then can further include after the step 501:
The network side notifying user equipment strengthens the transmission information of PDCCH.
Mode two, the scheme that only adopts the embodiment of the invention are configured the channel resource of candidate PDCCH.
Preferable, the network side configuration strengthens the PDCCH candidate channel number of each polymerization grade among the PDCCH in the step 501, makes the summation of the summation of the candidate PDCCH channel number after the configuration less than PDCCH candidate channel number in the exclusive search volume of subscriber equipment.
Preferable, when employing mode two, concrete configuration (promptly strengthening the PDCCH candidate channel number of each polymerization grade among the PDCCH) can be stipulated (promptly preestablishing) in agreement, also can be by the network side informing user terminal.
If by the network side informing user terminal, then can further include after the step 501:
The network side notifying user equipment strengthens the PDCCH candidate channel number of each polymerization grade among the PDCCH.
The scheme of mode three, the employing embodiment of the invention is configured the transmission information of enhancing PDCCH and the channel resource of candidate PDCCH.
Preferable, the DCI format 0 that network side will be used for the DCI form of dispatching downlink PDSCH transmission and be used for dispatching uplink PUSCH transmission in the step 501 transmits at first time slot that strengthens PDCCH zone subframe, and other DCI forms that will be used for dispatching uplink PUSCH transmit in second time slot that strengthens PDCCH zone subframe, and the PDCCH candidate channel number of determining to strengthen each polymerization grade among the PDCCH.
Preferable, when employing mode three, concrete configuration can stipulate in agreement, also can be by the network side informing user terminal.
The concrete configuration here can be the configuration to the channel resource of the configuration of the transmission information that strengthens PDCCH and/or candidate PDCCH.
If by the network side informing user terminal, then can further include after the step 501:
The network side notifying user equipment strengthens the transmission information of PDCCH and/or the channel resource of candidate PDCCH.
The summation of the candidate PDCCH channel number after the configuration in the mode three is less than the not necessarily non-summation that is less than PDCCH candidate channel number in the exclusive search volume of subscriber equipment of the summation of PDCCH candidate channel number in the exclusive search volume of subscriber equipment, and the blind check number of times that needs only PDCCH in the PDCCH search volume after guaranteeing to dispose is not more than the blind check number of times of PDCCH in the exclusive PDCCH of the subscriber equipment search volume.
Need to prove, the embodiment of the invention is not limited to above-mentioned three kinds of modes, and the alternate manner that the blind check number of times of PDCCH is not more than the blind check number of times of PDCCH in the exclusive PDCCH of the subscriber equipment search volume in the PDCCH search volume after the configuration all is suitable for the embodiment of the invention.
Based on same inventive concept, the equipment of transfer of data and the method for transfer of data also are provided in the embodiment of the invention, because the principle that these equipment and method are dealt with problems and the system similarity of transfer of data, therefore the enforcement of these equipment and method can repeat part and repeat no more referring to the enforcement of system.
As shown in Figure 6, the method for second kind of transfer of data of the embodiment of the invention comprises the following steps:
The configuration of network side comprises three kinds of situations: 1, only adopt the scheme of the embodiment of the invention that the transmission information that strengthens PDCCH is configured; 2, the scheme that only adopts the embodiment of the invention is configured the channel resource of candidate PDCCH; 3, adopt the scheme of the embodiment of the invention that the transmission information of enhancing PDCCH and the channel resource of candidate PDCCH are configured.
If only adopt the scheme of the embodiment of the invention that the transmission information that strengthens PDCCH is configured, then in the step 601 in first time slot of subscriber equipment subframe in strengthening the PDCCH zone blind check be used for the DCI form of dispatching downlink PDSCH transmission and the DCI format 0 of dispatching uplink PUSCH transmission, blind check is used for other DCI forms of dispatching uplink PUSCH in second time slot of subframe in strengthening the PDCCH zone.
If the scheme that only adopts the embodiment of the invention is configured the channel resource of candidate PDCCH, then subscriber equipment carries out blind check according to the PDCCH candidate channel number of each polymerization grade among the enhancing PDCCH of configuration in the step 601 on each candidate PDCCH.
If adopt the scheme of the embodiment of the invention that the transmission information of enhancing PDCCH and the channel resource of candidate PDCCH are configured, then in the step 601 subscriber equipment according to the PDCCH candidate channel number of each polymerization grade among the enhancing PDCCH of configuration, blind check is used for the DCI form of dispatching downlink PDSCH transmission and the DCI format 0 of dispatching uplink PUSCH transmission in first time slot of subframe in strengthening the PDCCH zone, and blind check is used for other DCI forms of dispatching uplink PUSCH in second time slot of subframe in strengthening the PDCCH zone.
Preferable, can further include before the step 601:
The PDCCH candidate channel number of each polymerization grade among the transmission information of the enhancing PDCCH of user terminal reception network side notice and/or the enhancing PDCCH.
Wherein, Fig. 5 and Fig. 6 can synthesize a flow process, form the method for new transfer of data, be that network side is configured the transmission information of enhancing physical downlink control channel PDCCH and/or the channel resource of candidate PDCCH, subscriber equipment just can carry out blind check according to configuration, can transmit data after network side is configured, subscriber equipment can receive data by blind check.
Those skilled in the art should understand that embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt complete hardware embodiment, complete software implementation example or in conjunction with the form of the embodiment of software and hardware aspect.And the present invention can adopt the form that goes up the computer program of implementing in one or more computer-usable storage medium (including but not limited to magnetic disc store, CD-ROM, optical memory etc.) that wherein include computer usable program code.
The present invention is that reference is described according to the flow chart and/or the block diagram of method, equipment (system) and the computer program of the embodiment of the invention.Should understand can be by the flow process in each flow process in computer program instructions realization flow figure and/or the block diagram and/or square frame and flow chart and/or the block diagram and/or the combination of square frame.Can provide these computer program instructions to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, make the instruction of carrying out by the processor of computer or other programmable data processing device produce to be used for the device of the function that is implemented in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame appointments.
These computer program instructions also can be stored in energy vectoring computer or the computer-readable memory of other programmable data processing device with ad hoc fashion work, make the instruction that is stored in this computer-readable memory produce the manufacture that comprises command device, this command device is implemented in the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame.
These computer program instructions also can be loaded on computer or other programmable data processing device, make on computer or other programmable devices and to carry out the sequence of operations step producing computer implemented processing, thereby the instruction of carrying out on computer or other programmable devices is provided for being implemented in the step of the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame.
Although described the preferred embodiments of the present invention, in a single day those skilled in the art get the basic creative notion of cicada, then can make other change and modification to these embodiment.So claims are intended to all changes and the modification that are interpreted as comprising preferred embodiment and fall into the scope of the invention.
Because the blind check number of times of PDCCH is not more than the blind check number of times of PDCCH in the exclusive PDCCH of the subscriber equipment search volume in the PDCCH search volume after the configuration, thereby on the basis that strengthens PDCCH, can further effectively reduce the blind check number of times of PDCCH, and with and equipment implementing complexity.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (23)
1. a data transmission method is characterized in that, this method comprises:
Network side is configured the transmission information of enhancing physical downlink control channel PDCCH and/or the channel resource of candidate PDCCH, and the blind check number of times of PDCCH is not more than the blind check number of times of PDCCH in the exclusive PDCCH of the subscriber equipment search volume in the PDCCH search volume after wherein disposing;
Described network side carries out transfer of data by the PDCCH after disposing.
2. the method for claim 1 is characterized in that, described network side is configured the transmission information that strengthens PDCCH and comprises:
The DCI format 0 that described network side will be used for the DCI form of dispatching downlink PDSCH transmission and be used for dispatching uplink PUSCH transmission transmits at first time slot that strengthens PDCCH zone subframe, and other DCI forms that will be used for dispatching uplink PUSCH transmit in second time slot that strengthens PDCCH zone subframe.
3. the method for claim 1 is characterized in that, described network side is configured the candidate PDCCH channel resource that strengthens PDCCH and comprises:
The configuration of described network side strengthens the PDCCH candidate channel number of each polymerization grade among the PDCCH, makes the summation of the summation of the candidate PDCCH channel number after the configuration less than PDCCH candidate channel number in the exclusive search volume of subscriber equipment.
4. the method for claim 1 is characterized in that, described network side is configured the channel resource of the transmission information that strengthens PDCCH and candidate PDCCH and comprises:
The DCI format 0 that described network side will be used for the DCI form of dispatching downlink PDSCH transmission and be used for dispatching uplink PUSCH transmission transmits at first time slot that strengthens PDCCH zone subframe, and other DCI forms that will be used for dispatching uplink PUSCH transmit in second time slot that strengthens PDCCH zone subframe; And
Described network side determines to strengthen the PDCCH candidate channel number of each polymerization grade among the PDCCH.
5. as claim 3 or 4 described methods, it is characterized in that the PDCCH candidate channel number of each polymerization grade is predefined among the described enhancing PDCCH.
6. as claim 3 or 4 described methods, it is characterized in that described network side is undertaken also comprising before the transfer of data by the PDCCH after disposing:
Described network side notifying user equipment strengthens the PDCCH candidate channel number of each polymerization grade among the PDCCH.
7. a data transmission method is characterized in that, this method comprises:
Subscriber equipment is according to the transmission information of the enhancing PDCCH of configuration and/or the channel resource of candidate PDCCH, carry out blind check to strengthening PDCCH, the blind check number of times of PDCCH is not more than the blind check number of times of PDCCH in the exclusive PDCCH of the subscriber equipment search volume in the PDCCH search volume after wherein disposing;
Described subscriber equipment receives data by blind check on enhancing PDCCH.
8. method as claimed in claim 7 is characterized in that, described subscriber equipment carries out blind check to enhancing PDCCH and comprises according to the transmission information of the enhancing PDCCH of configuration:
Blind check is used for the DCI form of dispatching downlink PDSCH transmission and the DCI format 0 of dispatching uplink PUSCH transmission in first time slot of described subscriber equipment subframe in strengthening the PDCCH zone, and blind check is used for other DCI forms of dispatching uplink PUSCH in second time slot of subframe in strengthening the PDCCH zone.
9. method as claimed in claim 7 is characterized in that, described subscriber equipment carries out blind check to enhancing PDCCH and comprises according to the channel resource of candidate PDCCH:
Described subscriber equipment carries out blind check according to the PDCCH candidate channel number of each polymerization grade among the enhancing PDCCH of configuration on each candidate PDCCH;
Wherein, the summation of the candidate PDCCH channel number after the configuration is less than the summation of PDCCH candidate channel number in the exclusive search volume of subscriber equipment.
10. method as claimed in claim 7 is characterized in that, described subscriber equipment carries out blind check to enhancing PDCCH and comprises according to the transmission information of the enhancing PDCCH of configuration and the channel resource of candidate PDCCH:
Described subscriber equipment is according to the PDCCH candidate channel number of each polymerization grade among the enhancing PDCCH of configuration, blind check is used for the DCI form of dispatching downlink PDSCH transmission and the DCI format 0 of dispatching uplink PUSCH transmission in first time slot of subframe in strengthening the PDCCH zone, and blind check is used for other DCI forms of dispatching uplink PUSCH in second time slot of subframe in strengthening the PDCCH zone.
11., it is characterized in that the PDCCH candidate channel number of each polymerization grade is predefined among the described enhancing PDCCH as claim 9 or 10 described methods.
12., it is characterized in that described subscriber equipment carries out also comprising before the blind check as claim 9 or 10 described methods:
The PDCCH candidate channel number of each polymerization grade among the enhancing PDCCH of described subscriber equipment reception network side notice.
13. a data transmission set is characterized in that, this equipment comprises:
Configuration module is used for the transmission information of enhancing PDCCH and/or the channel resource of candidate PDCCH are configured, and the blind check number of times of PDCCH is not more than the blind check number of times of PDCCH in the exclusive PDCCH of the subscriber equipment search volume in the PDCCH search volume after wherein disposing;
Transport module is used for carrying out transfer of data by the PDCCH after the configuration.
14. equipment as claimed in claim 13 is characterized in that, described configuration module specifically is used for:
The DCI format 0 that will be used for the DCI form of dispatching downlink PDSCH transmission and be used for dispatching uplink PUSCH transmission transmits at first time slot that strengthens PDCCH zone subframe, and other DCI forms that will be used for dispatching uplink PUSCH transmit in second time slot that strengthens PDCCH zone subframe.
15. equipment as claimed in claim 13 is characterized in that, described configuration module specifically is used for:
Configuration strengthens the PDCCH candidate channel number of each polymerization grade among the PDCCH, makes the summation of the summation of the candidate PDCCH channel number after the configuration less than PDCCH candidate channel number in the exclusive search volume of subscriber equipment.
16. equipment as claimed in claim 13 is characterized in that, described configuration module specifically is used for:
The DCI format 0 that will be used for the DCI form of dispatching downlink PDSCH transmission and be used for dispatching uplink PUSCH transmission transmits at first time slot that strengthens PDCCH zone subframe, and other DCI forms that will be used for dispatching uplink PUSCH transmit in second time slot that strengthens PDCCH zone subframe; And the PDCCH candidate channel number of determining to strengthen each polymerization grade among the PDCCH.
17., it is characterized in that described transport module also is used for as claim 15 or 16 described equipment:
Undertaken before the transfer of data by the PDCCH after the configuration, notifying user equipment strengthens the PDCCH candidate channel number of each polymerization grade among the PDCCH.
18. a data transmission set is characterized in that, this equipment comprises:
The blind check module, be used for according to the transmission information of the enhancing PDCCH that disposes and/or the channel resource of candidate PDCCH, carry out blind check to strengthening PDCCH, the blind check number of times of PDCCH is not more than the blind check number of times of PDCCH in the exclusive PDCCH of the subscriber equipment search volume in the PDCCH search volume after wherein disposing;
Receiver module is used for receiving data by blind check on enhancing PDCCH.
19. equipment as claimed in claim 18 is characterized in that, described blind check module specifically is used for:
Blind check is used for the DCI form of dispatching downlink PDSCH transmission and the DCI format 0 of dispatching uplink PUSCH transmission in first time slot of subframe in strengthening the PDCCH zone, and blind check is used for other DCI forms of dispatching uplink PUSCH in second time slot of subframe in strengthening the PDCCH zone.
20. equipment as claimed in claim 18 is characterized in that, described blind check module specifically is used for:
According to the PDCCH candidate channel number of each polymerization grade among the enhancing PDCCH of configuration, on each candidate PDCCH, carry out blind check;
Wherein, the summation of the candidate PDCCH channel number after the configuration is less than the summation of PDCCH candidate channel number in the exclusive search volume of subscriber equipment.
21. equipment as claimed in claim 18 is characterized in that, described blind check module specifically is used for:
PDCCH candidate channel number according to each polymerization grade among the enhancing PDCCH of configuration, blind check is used for the DCI form of dispatching downlink PDSCH transmission and the DCI format 0 of dispatching uplink PUSCH transmission in first time slot of subframe in strengthening the PDCCH zone, and blind check is used for other DCI forms of dispatching uplink PUSCH in second time slot of subframe in strengthening the PDCCH zone.
22., it is characterized in that described blind check module also is used for as claim 20 or 21 described equipment:
Carry out receiving before the blind check PDCCH candidate channel number of each polymerization grade among the enhancing PDCCH of network side notice.
23. a data transmission system is characterized in that, this system comprises:
Network equipment, be used for the transmission information of enhancing physical downlink control channel PDCCH and/or the channel resource of candidate PDCCH are configured, carry out transfer of data by the PDCCH after the configuration, the blind check number of times of PDCCH is not more than the blind check number of times of PDCCH in the exclusive PDCCH of the subscriber equipment search volume in the PDCCH search volume after wherein disposing;
Subscriber equipment is used for according to the transmission information of the enhancing PDCCH that disposes and/or the channel resource of candidate PDCCH, carries out blind check to strengthening PDCCH, receives data by blind check on enhancing PDCCH.
Priority Applications (2)
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| CN201110113229.2A CN102164416B (en) | 2011-05-03 | 2011-05-03 | Method, system and equipment for transmitting data |
| PCT/CN2012/073432 WO2012149848A1 (en) | 2011-05-03 | 2012-03-31 | Method, system and device for data transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201110113229.2A CN102164416B (en) | 2011-05-03 | 2011-05-03 | Method, system and equipment for transmitting data |
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| CN102164416A true CN102164416A (en) | 2011-08-24 |
| CN102164416B CN102164416B (en) | 2014-04-16 |
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| CN201110113229.2A Active CN102164416B (en) | 2011-05-03 | 2011-05-03 | Method, system and equipment for transmitting data |
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| WO (1) | WO2012149848A1 (en) |
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| Publication number | Publication date |
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| WO2012149848A1 (en) | 2012-11-08 |
| CN102164416B (en) | 2014-04-16 |
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