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CN102164416B - Method, system and equipment for transmitting data - Google Patents

Method, system and equipment for transmitting data Download PDF

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Publication number
CN102164416B
CN102164416B CN201110113229.2A CN201110113229A CN102164416B CN 102164416 B CN102164416 B CN 102164416B CN 201110113229 A CN201110113229 A CN 201110113229A CN 102164416 B CN102164416 B CN 102164416B
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pdcch
blind check
enhancing
dci
candidate
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CN102164416A (en
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赵锐
潘学明
沈祖康
肖国军
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China Academy of Telecommunications Technology CATT
Datang Mobile Communications Equipment Co Ltd
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China Academy of Telecommunications Technology CATT
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Priority to PCT/CN2012/073432 priority patent/WO2012149848A1/en
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    • H04ELECTRIC COMMUNICATION TECHNIQUE
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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

A kind of method, system and equipment of transfer of data
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 system, PDCCH (physical downlink control channel, Physical Downlink Control Channel) in each wireless sub-frame, send, and with downlink data PDSCH form TDM (Time Division Multiple, time division multiplexing) multiplexing relation.
The control area of transmitting PDCCH in LTE system is by the CCE of logical partitioning (Control Channel Element, control channel unit) form, wherein CCE has adopted to the mapping of RE (Resource element, Resource Unit) mode interweaving completely.DCI (Downlink Control Information, Downlink Control Information) transmission based on CCE, be also unit, a DCI for a UE (subscriber equipment) can send in N continuous CCE, in LTE system, the possible value of N is 1,2,4,8, be called CCE polymerization grade (Aggregation Level).UE carries out PDCCH blind check in control area, whether search there is the PDCCH for its transmission, blind check is used RNTI (the Radio Network Temporary Identifier of UE, radio network temporary identifier) to the trial of decoding of different DCI forms and CCE polymerization grade, if decoding is correct, receive the DCI for this UE.LTEUE each descending sub frame in non-DRX (Discontinuous Reception, discontinuous reception) state needs control area to carry out blind check, search PDCCH.
Control area in LTE system in a subframe consists of two spaces, i.e. public search space (Common Search Space, CSS) and user-specific search volume (UE-specific Search Space, UESS).The DCI of the wherein exclusive control information in public search space main users transmitting and scheduling community (such as system information, beep-page message, multicast-power control information etc.), user-specific search volume is mainly used in the DCI of transmission for each UE scheduling of resource.In each descending sub frame, public search space comprises front 16 CCE, and in public search space, CCE polymerization grade is only supported 4,8 two kinds; In each descending sub frame, the RNTI of the initial CCE position of the UE search volume of each user-specific and subframe numbering, UE etc. is relevant, support CCE polymerization grade 1,2,4,8 in user-specific search volume.In UESS, the corresponding search volume of the blind check of each polymerization grade, the different polymerization grade of namely UE blind check is to carry out in different search volumes.Table 1 has provided the CCE space that a UE needs blind check in a descending sub frame, 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)represent the blind check number of attempt of corresponding every kind of polymerization grade size.
Figure BDA0000058973030000021
1: one UE of form needs the CCE space of blind check in a descending sub frame
According to shown in table 1, a UE needs to carry out the trial of 22 PDCCH channel resources in a descending sub frame, wherein public search space totally 6 PDCCH channel resources, and 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: have two kinds of situations:
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 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 current LTE and LTE-A (Long Term Evolution-Advanced, long-term evolution upgrading) in system, for meeting the dispatch increased requirement of user capacity and interference increasement, consideration is made enhancing to a certain degree to control channel, such as being similar to the PDCCH enhanced scheme of the R-PDCCH supporting in Relay (relaying) system.
The PDCCH of Relay system and PDSCH resource structures figure are as Fig. 1, and wherein the R-PDCCH of Relay system is for base station to Relay control channel, and R-PDSCH transmits data for Relay to UE.In order to increase the capacity of control channel in non-Relay system, such scheme also can be incorporated in non-Relay system.Base station can separate a part of resource for to UE control channel in PDSCH (Physical Downlink Shared Channel, downlink physical shared channel), is called " strengthening PDCCH region ".
In the definition of R-PDCCH, it does not comprise public search space, only has 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 monitoring during R-PDCCH, in DL grant region and UL grant region, under corresponding polymerization equivalence, needs the number of the candidate R-PDCCH monitoring as shown in table 1:
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 table 2:R-PDCCH polymerization grade Λ
According to the definition of above-mentioned R-PDCCH, can find out that for Relay, the blind check number of times of its R-PDCCH in the exclusive search volume of Relay is:
DL grant region: need respectively blind check DCI format 1A and a kind of DCI form relevant to transmission mode, therefore blind check number of times is (6+6+2+2) × 2=32;
UL grant region: if up support UL MIMO, needing respectively blind check DCI format 0 and DCI format 4 its blind check number of times 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, wherein whether supports that UL MIMO is that terminal capacity report need to 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.
As can be seen from the above analysis, if continue to use the definition in existing R-PDCCH completely in follow-up enhancing PDCCH, strengthening in PDCCH search volume, the blind check number of times (48/64) of its PDCCH can be greater than existing LTE Rel-10(version 10 so) in PDCCH blind check number of times (32/48) in the exclusive PDCCH search volume of the UE of definition.
In sum, strengthen PDCCH and cannot continue to use the configuration mode in R-PDCCH, make on enhancing PDCCH, to transmit.
summary of the invention
Method, system and the equipment of a kind of transfer of data that the embodiment of the present invention provides, in order to carry out transfer of data by strengthening PDCCH.
A kind of data transmission method that the embodiment of the present invention provides, comprising:
Network side is configured the transmission information that strengthens physical downlink control channel PDCCH, or to strengthening the transmission information of physical downlink control channel PDCCH and the channel resource of candidate PDCCH, be configured, in the PDCCH search volume after wherein configuring, 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 subscriber equipment search volume;
Described network side carries out transfer of data by the PDCCH after configuring.
Another data transmission method that the embodiment of the present invention provides, comprising:
Subscriber equipment is according to the transmission information of the enhancing PDCCH of configuration, to strengthening PDCCH, carry out blind check, or according to the transmission information of enhancing PDCCH and the channel resource of candidate PDCCH of configuration, to strengthening PDCCH, carry out blind check, in the PDCCH search volume after wherein configuring, 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 subscriber equipment search volume;
Described subscriber equipment receives data by blind check on enhancing PDCCH.
A kind of data transmission set that the embodiment of the present invention provides, comprising:
Configuration module, for the transmission information that strengthens PDCCH is configured, or to strengthening the transmission information of PDCCH and the channel resource of candidate PDCCH, be configured, in the PDCCH search volume after wherein configuring, 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 subscriber equipment search volume;
Transport module, for carrying out transfer of data by the PDCCH after configuration.
Another data transmission set that the embodiment of the present invention provides, comprising:
Blind check module, be used for according to the transmission information of the enhancing PDCCH of configuration, to strengthening PDCCH, carry out blind check, or according to the transmission information of enhancing PDCCH and the channel resource of candidate PDCCH of configuration, to strengthening PDCCH, carry out blind check, in the PDCCH search volume after wherein configuring, 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 subscriber equipment search volume;
Receiver module, for receiving data by blind check on enhancing PDCCH.
A kind of data transmission system that the embodiment of the present invention provides, comprising:
Network equipment, for the transmission information that strengthens physical downlink control channel PDCCH is configured, or be configured strengthening the transmission information of physical downlink control channel PDCCH and the channel resource of candidate PDCCH, by the PDCCH after configuration, carry out transfer of data, in the PDCCH search volume after wherein configuring, 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 subscriber equipment search volume;
Subscriber equipment, for according to the transmission information of the enhancing PDCCH of configuration, to strengthening PDCCH, carry out blind check, or according to the transmission information of enhancing PDCCH and the channel resource of candidate PDCCH of configuration, to strengthening PDCCH, carry out blind check, by blind check, on enhancing PDCCH, receive data.
Because the blind check number of times of PDCCH in the PDCCH search volume after configuration is not more than the blind check number of times of PDCCH in the exclusive PDCCH of subscriber equipment search volume, thereby strengthening on the basis of PDCCH, can further effectively reduce the blind check number of times of PDCCH, and with and equipment realize complexity.
accompanying drawing explanation
Fig. 1 is the resource structures figure schematic diagram of background technology;
Fig. 2 is the system configuration schematic diagram of embodiment of the present invention transfer of data;
Fig. 3 is the device structure schematic diagram of embodiment of the present invention the first transfer of data;
Fig. 4 is the device structure schematic diagram of embodiment of the present invention the second transfer of data;
Fig. 5 is the method flow schematic diagram of embodiment of the present invention the first transfer of data;
Fig. 6 is the method flow schematic diagram of embodiment of the present invention the second transfer of data;
Fig. 7 is the resource structures figure schematic diagram of the embodiment of the present invention.
embodiment
Inventor finds in the design process of Relay, due to DL grant and UL grant on time slot separately, therefore its blind check number of times in a time slot is consistent with the UE in Rel-8/10, but in a subframe, and its blind check number of times is the blind check number of times that exceedes ordinary terminal.Consider that the complexity of Relay is higher than UE, therefore this wants maximum blind check number of times to stagger in different time-gap, for Relay, is acceptable.But can increase extra complexity for UE.Consider that DL grant:DCI format 1A and UL grant:DCI format 0 have identical information bit simultaneously, the blind check of these two DCI forms is separately done, reduced the efficiency of UE blind check.
Embodiment of the present invention network side is configured strengthening the transmission information of PDCCH and/or the channel resource of candidate PDCCH, subscriber equipment is according to the transmission information of enhancing PDCCH and/or the channel resource of candidate PDCCH of configuration, to strengthening PDCCH, carry out blind check, in the PDCCH search volume after wherein configuring, 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 subscriber equipment search volume.Because the blind check number of times of PDCCH in the PDCCH search volume after configuration is not more than the blind check number of times of PDCCH in the exclusive PDCCH of subscriber equipment search volume, thereby strengthening on the basis of PDCCH, can further effectively reduce the blind check number of times of PDCCH, and with and equipment realize complexity.
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described.
In declarative procedure below, first from the cooperation of network side and user equipment side, implement to describe, finally from the enforcement of network side and user equipment side, describe respectively, but this does not also mean that the two must coordinate enforcement, in fact, when network side and user equipment side, separate while implementing, also solved respectively in network side and the existing problem of user equipment side, when just the two is combined with, can obtain better technique effect.
As shown in Figure 2, the system of embodiment of the present invention transfer of data comprises: network equipment 10 and subscriber equipment 20.
Network equipment 10, for being configured strengthening the transmission information of PDCCH and/or the channel resource of candidate PDCCH, by the PDCCH after configuration, carry out transfer of data, in the PDCCH search volume after wherein configuring, 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 subscriber equipment search volume.
Subscriber equipment 20, for according to the transmission information of enhancing PDCCH and/or the channel resource of candidate PDCCH of configuration, carries out blind check to strengthening PDCCH, by blind check, on enhancing PDCCH, receives data.
Network equipment 10 is configured and comprises three kinds of situations strengthening the transmission information of PDCCH and/or the channel resource of candidate PDCCH: 1, only adopt the scheme of the embodiment of the present invention to be configured the transmission information that strengthens PDCCH; 2, only adopt the scheme of the embodiment of the present invention to be configured the channel resource of candidate PDCCH; 3, adopt the scheme of the embodiment of the present invention to be configured strengthening the transmission information of PDCCH and the channel resource of candidate PDCCH.Be introduced respectively below.
Mode one, the scheme that only adopts the embodiment of the present invention are configured the transmission information that strengthens PDCCH.
Preferably, network equipment 10 transmits at first time slot that strengthens PDCCH region subframe by the DCI form for dispatching downlink PDSCH transmission with for the DCI format 0 of dispatching uplink PUSCH transmission, and other DCI forms for dispatching uplink PUSCH are transmitted in second time slot that strengthens PDCCH region subframe.Specifically can be referring to Fig. 7.
Accordingly, blind check is for the DCI form of dispatching downlink PDSCH transmission and the DCI format 0 of dispatching uplink PUSCH transmission in first time slot that strengthens subframe in PDCCH region for subscriber equipment 20, and in second time slot that strengthens subframe in PDCCH region, blind check is for other DCI forms of dispatching uplink PUSCH.
Preferably, in employing mode for the moment, concrete configuration (to strengthening the configuration of transmission information of PDCCH) can stipulate in agreement, also can be by network equipment 10 informing user terminals 20.
If by network equipment 10 informing user terminals 20, user terminal 20 carries out receiving before blind check the transmission information of the enhancing PDCCH of network side notice.
Give one example below the scheme of mode one described:
If continue to use the setting of candidate channel in R-PDCCH, namely corresponding to polymerization grade 1,2,4,8}, and 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) region is (at the first time slot strengthening in PDCCH region, specifically can be referring to Fig. 7): need respectively 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 with downlink transfer pattern, therefore blind check number of times is that (6+6+2+2) × 2=32 is (because DCI format0 and DCI format 1A have the length of identical information bit, in blind check, be only concerned about the length of information bit, therefore remain 2 blind checks),
UL grant region is (at the second time slot strengthening in PDCCH region, specifically can be referring to Fig. 7): if up support UL MIMO, only need blind check other DCI forms (for example: DCI format 4) for dispatching uplink PUSCH, 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 enhancing 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.
Can find out, the blind check number of times of mode one in the exclusive PDCCH search volume of subscriber equipment is consistent with the blind check number of times in the exclusive PDCCH search volume of the subscriber equipment of LTE Rel-10.
Mode two, only adopt the scheme of the embodiment of the present invention to be configured the channel resource of candidate PDCCH.
Preferably, network equipment 10 configurations strengthen the PDCCH candidate channel number of each polymerization grade in PDCCH, make the summation of the candidate PDCCH channel number after configuration be less than the summation of PDCCH candidate channel number in the exclusive search volume of subscriber equipment.
Accordingly, subscriber equipment 20, according to the PDCCH candidate channel number of each polymerization grade in the enhancing PDCCH of configuration, carries out blind check on each candidate PDCCH.
Preferably, when employing mode two, concrete configuration (strengthening the PDCCH candidate channel number of each polymerization grade in PDCCH) can stipulate (presetting) in agreement, also can be by network equipment 10 informing user terminals 20.
If by network equipment 10 informing user terminals 20, user terminal 20 carries out receiving before blind check the PDCCH candidate channel number of each polymerization grade in the enhancing PDCCH of network side notice.
Give one example below the scheme of mode two described:
In DL grant region, corresponding to polymerization grade, { number of the candidate PDCCH channel of 1,2,4,8} is { 4,4 for it, 1., 1}, in UL grant region, 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 region is (at the first time slot strengthening in PDCCH region, specifically can be referring to Fig. 1): need respectively blind check DCI format 1A and a kind of DCI form corresponding with transmission mode, therefore blind check number of times is (4+4+1+1) × 2=20;
UL grant region is (at the second time slot strengthening in PDCCH region, specifically can be referring to Fig. 1): if up support UL MIMO, need blind check DCI format 0 and a kind of DCI form corresponding with uplink transmission mode (for example: DCI format 4), 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 enhancing 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.
Can find out, the blind check number of times in the exclusive PDCCH search volume of subscriber equipment is less than the blind check number of times in the exclusive PDCCH search volume of the subscriber equipment of LTERel-10.
The scheme of mode three, the employing embodiment of the present invention is configured strengthening the transmission information of PDCCH and the channel resource of candidate PDCCH.
Preferably, network equipment 10 transmits at first time slot that strengthens PDCCH region subframe by the DCI form for dispatching downlink PDSCH transmission with for the DCI format 0 of dispatching uplink PUSCH transmission, and other DCI forms for dispatching uplink PUSCH are transmitted in second time slot that strengthens PDCCH region subframe, and determine the PDCCH candidate channel number that strengthens each polymerization grade in PDCCH.
Accordingly, subscriber equipment 20 is according to the PDCCH candidate channel number of each polymerization grade in the enhancing PDCCH of configuration, in first time slot that strengthens subframe in PDCCH region, blind check is for the DCI form of dispatching downlink PDSCH transmission and the DCI format 0 of dispatching uplink PUSCH transmission, and in second time slot that strengthens subframe in PDCCH region, blind check is for other DCI forms of dispatching uplink PUSCH.
Preferably, 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 to strengthening the configuration of transmission information of PDCCH and/or the configuration of the channel resource of candidate PDCCH.
If by network equipment 10 informing user terminals 20, user terminal 20 carries out the transmission information of the enhancing PDCCH that receives network side notice before blind check and/or strengthens the PDCCH candidate channel number of each polymerization grade in PDCCH.
The summation of the candidate PDCCH channel number after the configuration in 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 summation of PDCCH candidate channel number in the exclusive search volume of subscriber equipment, as long as guarantee that the blind check number of times of PDCCH in the PDCCH search volume after configuration is not more than the blind check number of times of PDCCH in the exclusive PDCCH of subscriber equipment search volume.
Give one example below the scheme of mode three described:
Number to DL grant+UL grant (DCI format 0) region and UL grant area configurations candidate PDCCH channel respectively, for example, in DL grant region, it is corresponding to polymerization grade { 1, the number of the candidate PDCCH channel of 2,4,8} is { 3,3,1,1}, in UL grant region, it is corresponding to polymerization grade { 1,2, the number of the candidate PDCCH channel of 4,8} is { 3,3,1,1}, its blind check number of times is so:
DL grant+UL grant (DCI format 0) region is (at the first time slot strengthening in PDCCH region, specifically can be referring to Fig. 7): need respectively 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 with downlink transfer pattern, therefore blind check number of times is (3+3+1+1) × 2=16;
UL grant region is (at the second time slot strengthening in PDCCH region, specifically can be referring to Fig. 7): if up support UL MIMO, only need blind check other DCI forms (for example: DCI format 4) for dispatching uplink PUSCH, 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 enhancing 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.
Can find out, the blind check number of times of mode three in the exclusive PDCCH search volume of subscriber equipment is less than the blind check number of times in the exclusive PDCCH search volume of the subscriber equipment of LTE Rel-10.
It should be noted that, the embodiment of the present invention is not limited to above-mentioned three kinds of modes, and the alternate manner that in the PDCCH search volume after 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 subscriber equipment search volume is all suitable for the embodiment of the present invention.
Wherein, the network equipment of the embodiment of the present invention can be base station (such as macro base station, Home eNodeB etc.), can be also 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 are also provided in the embodiment of the present invention, because the principle that these equipment are dealt with problems with method is similar to the system of transfer of data, therefore the enforcement of these equipment and method can be referring to the enforcement of system, repeats part and repeat no more.
As shown in Figure 3, the equipment of embodiment of the present invention the first transfer of data (being network equipment) comprising: configuration module 100 and transport module 110.
Configuration module 100, for being configured strengthening the transmission information of PDCCH and/or the channel resource of candidate PDCCH, in the PDCCH search volume after wherein configuring, 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 subscriber equipment search volume.
Transport module 110, for carrying out transfer of data by the PDCCH after configuration.
Preferably, configuration module 100 transmits at first time slot that strengthens PDCCH region subframe by the DCI form for dispatching downlink PDSCH transmission with for the DCI format 0 of dispatching uplink PUSCH transmission, and other DCI forms for dispatching uplink PUSCH are transmitted in second time slot that strengthens PDCCH region subframe.
Preferably, configuration module 100 configurations strengthen the PDCCH candidate channel number of each polymerization grade in PDCCH, make the summation of the candidate PDCCH channel number after configuration be less than the summation of PDCCH candidate channel number in the exclusive search volume of subscriber equipment.
Preferably, configuration module 100 transmits at first time slot that strengthens PDCCH region subframe by the DCI form for dispatching downlink PDSCH transmission with for the DCI format 0 of dispatching uplink PUSCH transmission, and other DCI forms for dispatching uplink PUSCH are transmitted in second time slot that strengthens PDCCH region subframe; And definite PDCCH candidate channel number that strengthens each polymerization grade in PDCCH.
Preferably, before transport module 110 carries out transfer of data by the PDCCH after configuring, notifying user equipment strengthens the PDCCH candidate channel number of each polymerization grade in PDCCH.
As shown in Figure 4, the equipment of embodiment of the present invention the second transfer of data (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 enhancing PDCCH and/or the channel resource of candidate PDCCH of configuration, to strengthening PDCCH, carry out blind check, in the PDCCH search volume after wherein configuring, 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 subscriber equipment search volume.
Receiver module 210, for receiving data by blind check on enhancing PDCCH.
Preferably, blind check is for the DCI form of dispatching downlink PDSCH transmission and the DCI format 0 of dispatching uplink PUSCH transmission in first time slot that strengthens subframe in PDCCH region for blind check module 200, and in second time slot that strengthens subframe in PDCCH region, blind check is for other DCI forms of dispatching uplink PUSCH.
Preferably, blind check module 200, according to the PDCCH candidate channel number of each polymerization grade in the enhancing PDCCH of configuration, is carried out blind check on each candidate PDCCH;
Wherein, the summation of the candidate PDCCH channel number after configuration is less than the summation of PDCCH candidate channel number in the exclusive search volume of subscriber equipment.
Preferably, blind check module 200 is according to the PDCCH candidate channel number of each polymerization grade in the enhancing PDCCH of configuration, in first time slot that strengthens subframe in PDCCH region, blind check is for the DCI form of dispatching downlink PDSCH transmission and the DCI format 0 of dispatching uplink PUSCH transmission, and in second time slot that strengthens subframe in PDCCH region, blind check is for other DCI forms of dispatching uplink PUSCH.
Preferably, blind check module 200 carries out receiving before blind check the PDCCH candidate channel number of each polymerization grade in the enhancing PDCCH of network side notice.
As shown in Figure 5, the method for embodiment of the present invention the first transfer of data comprises the following steps:
Step 501, network side are configured strengthening the transmission information of PDCCH and/or the channel resource of candidate PDCCH, and in the PDCCH search volume after wherein configuring, 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 subscriber equipment search volume.
Step 502, network side carry out transfer of data by the PDCCH after configuring.
Network side is configured and comprises three kinds of situations strengthening the transmission information of PDCCH and/or the channel resource of candidate PDCCH: 1, only adopt the scheme of the embodiment of the present invention to be configured the transmission information that strengthens PDCCH; 2, only adopt the scheme of the embodiment of the present invention to be configured the channel resource of candidate PDCCH; 3, adopt the scheme of the embodiment of the present invention to be configured strengthening the transmission information of PDCCH and the channel resource of candidate PDCCH.Be introduced respectively below.
Mode one, the scheme that only adopts the embodiment of the present invention are configured the transmission information that strengthens PDCCH.
Preferably, in step 501, network side transmits at first time slot that strengthens PDCCH region subframe by the DCI form for dispatching downlink PDSCH transmission with for the DCI format 0 of dispatching uplink PUSCH transmission, and other DCI forms for dispatching uplink PUSCH are transmitted in second time slot that strengthens PDCCH region subframe.Specifically can be referring to Fig. 7.
Preferably, in employing mode for the moment, concrete configuration (to strengthening the configuration of transmission information of PDCCH) can stipulate in agreement, also can be by network side informing user terminal.
If by network side informing user terminal, after step 501, can further include:
Network side notifying user equipment strengthens the transmission information of PDCCH.
Mode two, only adopt the scheme of the embodiment of the present invention to be configured the channel resource of candidate PDCCH.
Preferably, in step 501, network side configuration strengthens the PDCCH candidate channel number of each polymerization grade in PDCCH, makes the summation of the candidate PDCCH channel number after configuration be less than the summation of PDCCH candidate channel number in the exclusive search volume of subscriber equipment.
Preferably, when employing mode two, concrete configuration (strengthening the PDCCH candidate channel number of each polymerization grade in PDCCH) can stipulate (presetting) in agreement, also can be by network side informing user terminal.
If by network side informing user terminal, after step 501, can further include:
Network side notifying user equipment strengthens the PDCCH candidate channel number of each polymerization grade in PDCCH.
The scheme of mode three, the employing embodiment of the present invention is configured strengthening the transmission information of PDCCH and the channel resource of candidate PDCCH.
Preferably, in step 501, network side transmits at first time slot that strengthens PDCCH region subframe by the DCI form for dispatching downlink PDSCH transmission with for the DCI format 0 of dispatching uplink PUSCH transmission, and other DCI forms for dispatching uplink PUSCH are transmitted in second time slot that strengthens PDCCH region subframe, and determine the PDCCH candidate channel number that strengthens each polymerization grade in PDCCH.
Preferably, when employing mode three, concrete configuration can stipulate in agreement, also can be by network side informing user terminal.
The concrete configuration here can be to strengthening the configuration of transmission information of PDCCH and/or the configuration of the channel resource of candidate PDCCH.
If by network side informing user terminal, after step 501, can further include:
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 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 summation of PDCCH candidate channel number in the exclusive search volume of subscriber equipment, as long as guarantee that the blind check number of times of PDCCH in the PDCCH search volume after configuration is not more than the blind check number of times of PDCCH in the exclusive PDCCH of subscriber equipment search volume.
It should be noted that, the embodiment of the present invention is not limited to above-mentioned three kinds of modes, and the alternate manner that in the PDCCH search volume after 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 subscriber equipment search volume is all suitable for the embodiment of the present invention.
Based on same inventive concept, the equipment of transfer of data and the method for transfer of data are also provided in the embodiment of the present invention, because the principle that these equipment are dealt with problems with method is similar to the system of transfer of data, therefore the enforcement of these equipment and method can be referring to the enforcement of system, repeats part and repeat no more.
As shown in Figure 6, the method for embodiment of the present invention the second transfer of data comprises the following steps:
Step 601, subscriber equipment are according to the transmission information of enhancing PDCCH and/or the channel resource of candidate PDCCH of configuration, to strengthening PDCCH, carry out blind check, in the PDCCH search volume after wherein configuring, 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 subscriber equipment search volume.
Step 602, subscriber equipment receive data by blind check on enhancing PDCCH.
The configuration of network side comprises three kinds of situations: 1, only adopt the scheme of the embodiment of the present invention to be configured the transmission information that strengthens PDCCH; 2, only adopt the scheme of the embodiment of the present invention to be configured the channel resource of candidate PDCCH; 3, adopt the scheme of the embodiment of the present invention to be configured strengthening the transmission information of PDCCH and the channel resource of candidate PDCCH.
If only adopt the scheme of the embodiment of the present invention to be configured the transmission information that strengthens PDCCH, the subscriber equipment DCI format 0 that blind check is transmitted for DCI form and the dispatching uplink PUSCH of dispatching downlink PDSCH transmission in first time slot that strengthens subframe in PDCCH region in step 601, in second time slot that strengthens subframe in PDCCH region, blind check is for other DCI forms of dispatching uplink PUSCH.
If only adopt the scheme of the embodiment of the present invention to be configured the channel resource of candidate PDCCH, in step 601, subscriber equipment, according to the PDCCH candidate channel number of each polymerization grade in the enhancing PDCCH of configuration, carries out blind check on each candidate PDCCH.
If adopt the scheme of the embodiment of the present invention to be configured strengthening the transmission information of PDCCH and the channel resource of candidate PDCCH, in step 601 subscriber equipment according to the PDCCH candidate channel number of each polymerization grade in the enhancing PDCCH of configuration, in first time slot that strengthens subframe in PDCCH region, blind check is for the DCI form of dispatching downlink PDSCH transmission and the DCI format 0 of dispatching uplink PUSCH transmission, and in second time slot that strengthens subframe in PDCCH region, blind check is for other DCI forms of dispatching uplink PUSCH.
Preferably, before step 601, can further include:
The PDCCH candidate channel number of each polymerization grade in the transmission information of the enhancing PDCCH of user terminal reception network side notice and/or 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 strengthening the transmission information of physical downlink control channel PDCCH and/or the channel resource of candidate PDCCH, subscriber equipment just can carry out blind check according to configuration, after network side is configured, can transmit data, subscriber equipment can receive data by blind check.
Those skilled in the art should understand, embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt complete hardware implementation example, completely implement software example or the form in conjunction with the embodiment of software and hardware aspect.And the present invention can adopt the form at one or more upper computer programs of implementing of 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 with reference to describing according to flow chart and/or the block diagram of the method for the embodiment of the present invention, equipment (system) and computer program.Should understand can be by the flow process in each flow process in computer program instructions realization flow figure and/or block diagram and/or square frame and flow chart and/or 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, the instruction that makes to carry out by the processor of computer or other programmable data processing device produces the device for realizing the function of specifying at flow process of flow chart or multiple flow process and/or square frame of block diagram or multiple square frame.
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, the instruction that makes to be stored in this computer-readable memory produces the manufacture that comprises command device, and this command device is realized the function of specifying in flow process of flow chart or multiple flow process and/or square frame of block diagram or multiple square frame.
These computer program instructions also can be loaded in computer or other programmable data processing device, make to carry out sequence of operations step to produce computer implemented processing on computer or other programmable devices, thereby the instruction of carrying out is provided for realizing the step of the function of specifying in flow process of flow chart or multiple flow process and/or square frame of block diagram or multiple square frame on computer or other programmable devices.
Although described the preferred embodiments of the present invention, once those skilled in the art obtain the basic creative concept of cicada, can make other change and modification to these embodiment.So claims are intended to be interpreted as comprising preferred embodiment and fall into all changes and the modification of the scope of the invention.
Because the blind check number of times of PDCCH in the PDCCH search volume after configuration is not more than the blind check number of times of PDCCH in the exclusive PDCCH of subscriber equipment search volume, thereby strengthening on the basis of PDCCH, can further effectively reduce the blind check number of times of PDCCH, and with and equipment realize complexity.
Obviously, those skilled in the art can carry out various changes and modification and not depart from the spirit and scope of the present invention the present invention.Like this, if within of the present invention these are revised and modification belongs to the scope of the claims in the present invention and equivalent technologies thereof, the present invention is also intended to comprise these changes and modification interior.

Claims (11)

1. a data transmission method, is characterized in that, the method comprises:
Network side is configured the transmission information that strengthens physical downlink control channel PDCCH, or to strengthening the transmission information of physical downlink control channel PDCCH and the channel resource of candidate PDCCH, be configured, in the PDCCH search volume after wherein configuring, 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 subscriber equipment search volume;
Described network side carries out transfer of data by the PDCCH after configuring;
Wherein, described network side is configured and comprises the transmission information of enhancing PDCCH: described network side transmits at first time slot that strengthens PDCCH region subframe by the DCI form for dispatching downlink PDSCH transmission with for the DCI format0 of dispatching uplink PUSCH transmission, and other DCI forms for dispatching uplink PUSCH are transmitted at second time slot of subframe described in described enhancing PDCCH region;
Described network side is configured and comprises strengthening the transmission information of PDCCH and the channel resource of candidate PDCCH: described network side transmits at first time slot that strengthens PDCCH region subframe by the DCI form for dispatching downlink PDSCH transmission with for the DCI format0 of dispatching uplink PUSCH transmission, and other DCI forms for dispatching uplink PUSCH are transmitted at second time slot of subframe described in described enhancing PDCCH region; And described network side is determined the PDCCH candidate channel number that strengthens each polymerization grade in PDCCH.
2. the method for claim 1, it is characterized in that, if described network side is configured strengthening the transmission information of physical downlink control channel PDCCH and the channel resource of candidate PDCCH, in PDCCH search volume after wherein configuring, 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 subscriber equipment search volume, and in described enhancing PDCCH, the PDCCH candidate channel number of each polymerization grade is predefined.
3. the method for claim 1, it is characterized in that, if described network side is configured strengthening the transmission information of physical downlink control channel PDCCH and the channel resource of candidate PDCCH, in PDCCH search volume after wherein configuring, 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 subscriber equipment search volume, and described network side is undertaken also comprising before transfer of data by the PDCCH after configuring:
Described network side notifying user equipment strengthens the PDCCH candidate channel number of each polymerization grade in PDCCH.
4. a data transmission method, is characterized in that, the method comprises:
Subscriber equipment is according to the transmission information of the enhancing PDCCH of configuration, to strengthening PDCCH, carry out blind check, or according to the transmission information of enhancing PDCCH and the channel resource of candidate PDCCH of configuration, to strengthening PDCCH, carry out blind check, in the PDCCH search volume after wherein configuring, 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 subscriber equipment search volume;
Described subscriber equipment receives data by blind check on enhancing PDCCH;
Wherein, described subscriber equipment is according to the transmission information of the enhancing PDCCH of configuration, enhancing PDCCH is carried out to blind check to be comprised: blind check is for the DCI form of dispatching downlink PDSCH transmission and the DCI format0 of dispatching uplink PUSCH transmission in first time slot that strengthens subframe in PDCCH region for described subscriber equipment, and in described second time slot that strengthens subframe described in PDCCH region, blind check is for other DCI forms of dispatching uplink PUSCH;
Described subscriber equipment is according to the transmission information of enhancing PDCCH and the channel resource of candidate PDCCH of configuration, enhancing PDCCH is carried out to blind check to be comprised: described subscriber equipment is according to the PDCCH candidate channel number of each polymerization grade in the enhancing PDCCH of configuration, in first time slot that strengthens subframe in PDCCH region, blind check is for the DCI form of dispatching downlink PDSCH transmission and the DCI format0 of dispatching uplink PUSCH transmission, and in second time slot of subframe described in described enhancing PDCCH region, blind check is for other DCI forms of dispatching uplink PUSCH.
5. method as claimed in claim 4, it is characterized in that, if described subscriber equipment is according to the transmission information of enhancing PDCCH and the channel resource of candidate PDCCH of configuration, to strengthening PDCCH, carry out blind check, in described enhancing PDCCH, the PDCCH candidate channel number of each polymerization grade is predefined.
6. method as claimed in claim 4, is characterized in that, if described subscriber equipment, according to the transmission information of enhancing PDCCH and the channel resource of candidate PDCCH of configuration, carries out blind check to strengthening PDCCH, described subscriber equipment carries out also comprising before blind check:
The PDCCH candidate channel number of each polymerization grade in the enhancing PDCCH of described subscriber equipment reception network side notice.
7. a data transmission set, is characterized in that, this equipment comprises:
Configuration module, for the transmission information that strengthens PDCCH is configured, or to strengthening the transmission information of PDCCH and the channel resource of candidate PDCCH, be configured, in the PDCCH search volume after wherein configuring, 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 subscriber equipment search volume;
Transport module, for carrying out transfer of data by the PDCCH after configuration;
Wherein, described configuration module specifically for: by the DCI form for dispatching downlink PDSCH transmission with for the DCI format0 of dispatching uplink PUSCH transmission, at first time slot that strengthens PDCCH region subframe, transmit, and other DCI forms for dispatching uplink PUSCH transmitted at second time slot of subframe described in described enhancing PDCCH region; Or
Described configuration module specifically for: by the DCI form for dispatching downlink PDSCH transmission with for the DCI format0 of dispatching uplink PUSCH transmission, at first time slot that strengthens PDCCH region subframe, transmit, and other DCI forms for dispatching uplink PUSCH transmitted at second time slot of subframe described in described enhancing PDCCH region; And definite PDCCH candidate channel number that strengthens each polymerization grade in PDCCH.
8. equipment as claimed in claim 7, it is characterized in that, if described configuration module specifically for: by the DCI form for dispatching downlink PDSCH transmission with for the DCI format0 of dispatching uplink PUSCH transmission, at first time slot that strengthens PDCCH region subframe, transmit, and other DCI forms for dispatching uplink PUSCH transmitted at second time slot of subframe described in described enhancing PDCCH region; And determine the PDCCH candidate channel number that strengthens each polymerization grade in PDCCH, described transport module also for:
Before carrying out transfer of data by the PDCCH after configuration, notifying user equipment strengthens the PDCCH candidate channel number of each polymerization grade in PDCCH.
9. a data transmission set, is characterized in that, this equipment comprises:
Blind check module, be used for according to the transmission information of the enhancing PDCCH of configuration, to strengthening PDCCH, carry out blind check, or according to the transmission information of enhancing PDCCH and the channel resource of candidate PDCCH of configuration, to strengthening PDCCH, carry out blind check, in the PDCCH search volume after wherein configuring, 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 subscriber equipment search volume;
Receiver module, for receiving data by blind check on enhancing PDCCH;
Wherein, described blind check module specifically for: in first time slot that strengthens subframe in PDCCH region, blind check is for the DCI form of dispatching downlink PDSCH transmission and the DCI format0 of dispatching uplink PUSCH transmission, and in second time slot of subframe described in described enhancing PDCCH region, blind check is for other DCI forms of dispatching uplink PUSCH; Or
Described blind check module specifically for: according to the PDCCH candidate channel number of each polymerization grade in the enhancing PDCCH of configuration, in first time slot that strengthens subframe in PDCCH region, blind check is for the DCI form of dispatching downlink PDSCH transmission and the DCI format0 of dispatching uplink PUSCH transmission, and in second time slot of subframe described in described enhancing PDCCH region, blind check is for other DCI forms of dispatching uplink PUSCH.
10. equipment as claimed in claim 9, it is characterized in that, if described blind check module specifically for: according to the PDCCH candidate channel number of each polymerization grade in the enhancing PDCCH of configuration, in first time slot that strengthens subframe in PDCCH region, blind check is for the DCI form of dispatching downlink PDSCH transmission and the DCI format0 of dispatching uplink PUSCH transmission, in second time slot of subframe described in described enhancing PDCCH region, blind check is for other DCI forms of dispatching uplink PUSCH, described blind check module also for:
Carry out receiving before blind check the PDCCH candidate channel number of each polymerization grade in the enhancing PDCCH of network side notice.
11. 1 kinds of data transmission systems, is characterized in that, this system comprises:
Network equipment, for the transmission information that strengthens physical downlink control channel PDCCH is configured, or be configured strengthening the transmission information of physical downlink control channel PDCCH and the channel resource of candidate PDCCH, by the PDCCH after configuration, carry out transfer of data, in the PDCCH search volume after wherein configuring, 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 subscriber equipment search volume;
Subscriber equipment, for according to the transmission information of the enhancing PDCCH of configuration, to strengthening PDCCH, carry out blind check, or according to the transmission information of enhancing PDCCH and the channel resource of candidate PDCCH of configuration, to strengthening PDCCH, carry out blind check, by blind check, on enhancing PDCCH, receive data;
Wherein, if described network equipment is for being configured the transmission information that strengthens physical downlink control channel PDCCH, described network equipment specifically for: by the DCI form for dispatching downlink PDSCH transmission with for the DCI format0 of dispatching uplink PUSCH transmission, at first time slot that strengthens PDCCH region subframe, transmit, and other DCI forms for dispatching uplink PUSCH transmitted at second time slot of subframe described in described enhancing PDCCH region;
If described network equipment is for being configured strengthening the transmission information of physical downlink control channel PDCCH and the channel resource of candidate PDCCH, described network equipment specifically for: by the DCI form for dispatching downlink PDSCH transmission with for the DCI format0 of dispatching uplink PUSCH transmission, at first time slot that strengthens PDCCH region subframe, transmit, and other DCI forms for dispatching uplink PUSCH transmitted at second time slot of subframe described in described enhancing PDCCH region; And definite PDCCH candidate channel number that strengthens each polymerization grade in PDCCH;
If described subscriber equipment is used for according to the transmission information of the enhancing PDCCH of configuration, to strengthening PDCCH, carry out blind check, described subscriber equipment specifically for: in first time slot that strengthens subframe in PDCCH region, blind check is for the DCI form of dispatching downlink PDSCH transmission and the DCI format0 of dispatching uplink PUSCH transmission, and in second time slot of subframe described in described enhancing PDCCH region, blind check is for other DCI forms of dispatching uplink PUSCH;
If described subscriber equipment is used for according to the transmission information of enhancing PDCCH and the channel resource of candidate PDCCH of configuration, to strengthening PDCCH, carry out blind check, described subscriber equipment specifically for: according to the PDCCH candidate channel number of each polymerization grade in the enhancing PDCCH of configuration, in first time slot that strengthens subframe in PDCCH region, blind check is for the DCI form of dispatching downlink PDSCH transmission and the DCI format0 of dispatching uplink PUSCH transmission, in second time slot of subframe described in described enhancing PDCCH region, blind check is for other DCI forms of dispatching uplink PUSCH.
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