CN102246449A - Method for blind detection of physical downlink control channel (pdcch), and method and device for scheduling resources - Google Patents
Method for blind detection of physical downlink control channel (pdcch), and method and device for scheduling resources Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0036—Systems modifying transmission characteristics according to link quality, e.g. power backoff arrangements specific to the receiver
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Abstract
The embodiment of the present invention provides a method for blind detection of PDCCH, and a method and device for scheduling resources. The method for blind detection of PDCCH includes: decoding the PDCCH according to the format of the downlink control information (DCI) to be detected; performing descrambling operation on the decoded PDCCH with the terminal identifier to obtain the DCI including cyclic redundancy check (CRC); if the CRC is correct, parsing the content of the obtained DCI; stopping the subsequent blind detection of PDCCH if the content of the obtained DCI is a sequence which should not be appear in the the DCI to be detected. The method and device of the embodiment of the present invention enable decreasing the times of blind detection of PDCCH in the unscheduled mobile station (MS) to the best, thus reducing the power consumption of the MS.
Description
PDCCH blind checking method, resource regulating method and engineering device technique field
The present invention relates to communication technical field, more particularly to a kind of physical layer descending control channel PDCCH blind checking method, resource regulating method and device.
Background technology
In the downlink service data transmission of LTE system, multiple MS (Mobile Station, mobile terminal in a cell）Which running time-frequency resource statistical multiplex running time-frequency resource, some MS takes by the corresponding PDCCH of the MS (Physical Downlink Control Channel, physical layer descending control channel）To indicate.All MS PDCCH-as be located at subframe（Altogether containing 14 OFDM symbols, when a length of 1ms) preceding 13 OFDM (Orthogonal Frequency Division Multiplexing, OFDM）Symbol（Symbol in), PDSCH (Physical Downlink Shared Channel, physical layer descending shared channel for indicating each MS in present sub-frame）With other signalings, such as up resource allocation information.Fig. 1 for PDCCH and PDSCH in a subframe in the prior art graph of a relation.As shown in figure 1, MS corresponds to the data of the MS according to PDCCH control information with regard to that can obtain in PDSCH.
PDCCH information is by original DCI (Downlink Control Information, Downlink Control Information）Formed by convolutional encoding.DCI format（Format) comprising following several：1C, 0,1A, 3,3A, 1, IB, ID, 2,2A.There may finally be different length after every kind of DCI format codings.Multiple CCE (Control Channel Element can be contained in 3 OFDM Symbol, control channel unit, it is the least unit of resource shared by control channel, one CCE correspondence, 36 resource unit RE), and each PDCCH length is 1,2,4 or 8 CCE, so may contain multiple PDCCH in 3 OFDM Symbol, each MS looks for the correspondence PDCCH of oneself in this 3 OFDM Symbol.
In LTE system, the search space where PDCCH（That is PDCCH blind Detectings are possible to option）It is divided into two major classes, i.e. CSS (Common Search Space, public search space）With
DSS (MS-specific Search Space, dedicated search space）Two classes.PDCCH information contained by wherein CSS is the public information to all MS, and DSS is the special search spaces of some MS, and information contained therein is only effective to some MS, and the information MS of two spaces is required for detection.Table 1 is the PDCCH candidate items that MS need to be monitored.
Table 1
PDCCH length after possible coding；The 3rd of table 1 is classified as PDCCH length and is defined as after the 2nd row respective value, and corresponding is possible to total CCE numbers that PDCCH is accounted for；The 4th of table 1 is classified as the possible position number that every kind of PDCCH is placed.Relation is the product that the 3rd train value is the 2nd row and the 4th row between three.
Each MS needs the PDCCH resource intercepted to be also dynamic change, and the MS of prior art needs to carry out the blind Detecting of for up to 44 times（That is MS is not known whether to issue the PDCCH signalings of oneself before detection, or knows there are the PDCCH signalings for issuing oneself, but does not know PDCCH when being the DCI formation of which kind of form, it is necessary to detect all possible situation）To obtain this MS of correspondence PDCCH information, then Jin mono- Walk obtain this MS of correspondence PDSCH and other signaling informations by PDCCH information.The detection frequency table with needed for for the classification of PDCCH blind Detectings of table 2.
Table 2
1st the 3rd 0 time 16 times prior arts of class DCI format 1/1B/1D/2/2A of the 2nd class DCI format 0/1A/3/3A 6 times 16 times of class DCI format 1C 6 times 0 time are due to the fact that cause the operand of PDCCH blind Detectings big：
1) PDCCH has up to 10 kinds forms（The form of different search spaces is different, and a variety of different-formats have been likely in even each search space）, the DCI raw information length of some of which form is identical, and the raw information length of such as form 0,1A, 3,3A is identical, and these four forms are with a Viterbi (Viterbi）Decoding can just be detected；And some are then different, at this moment MS, which is accomplished by the multiple Viterbi decodings of progress, to detect, and Viterbi decodings are operand the best parts in blind Detecting.
2) to the PDCCH in DSS spaces, length after be up to four kinds possible codings（CCE numbers shared by the PDCCH generated after i.e. original DCI control information coding）, i.e. (aggregation level converge grade to AL）Value, respectively 1,2,4,8 CCE (secondary series in table 1）.To CSS, length only has 4 and 8 two kinds of CCE after coding.Wherein：AL is the number of correspondence CCE after having encoded, and AL is bigger, then the probability that PDCCH is detected is bigger, communicates more reliable.MS needs to carry out Viterbi decodings respectively by these length and detected.
3) under every kind of code length, PDCCH start bit is equipped with multiple (the 4th row M i.e. in table 1L.MS needs respectively to make the data of these positions Viterbi decodings to detect.
As the above analysis, the time for MS progress PDCCH blind Detectings is very limited, only
13 OFDM Symbol, about 0.07 0.21ms, and amount of calculation is very big.In LTE design, MS PDCCH blind Detectings at most need 44 Viterbi decodings of progress just to have detected the PDCCH information of all correspondences oneself.
Prior art is uncertain due to PDCCH positions, has encoded rear AL and has not known, and causes to need the blind Detecting number of times carried out too big, and MS at most needs 44 Viterbi decodings to complete blind Detecting.In LTE evolution version lte-a system, a MS at most needs to monitor the PDCCH of 5 descending carriers, then at most need to carry out 44 X, 5=220 blind Detectings altogether, detection is often, amount of calculation is too big, to MS cost, and power consumption etc. is all great challenge.
Also, scheduling of resource of the present sub-frame without some MS, i.e. when BS does not send the PDCCH of the MS, the PDCCH of oneself is not sent to because MS is not aware that, it still needs to carry out blind Detecting.Now due to always can't detect the PDCCH of oneself, MS can be detected always, until reaching maximum blind Detecting number of times：Untill 44 times, the power being of great rarity for MS is largely wasted.
The content of the invention
The embodiment of the present invention provides a kind of physical layer descending control channel PDCCH blind checking method, resource regulating method and device, and the method for the present embodiment informs corresponding terminal by a kind of special PDCCH：Do not correspond to the resource scheduling information of the terminal in the burst；When terminal detects the special PDCCH, follow-up PDCCH blind Detectings will be no longer carried out.
On the one hand, the embodiment of the present invention provides a kind of physical layer descending control channel PDCCH blind checking method, and methods described includes：Row decoding is entered to PDCCH according to DCI to be detected form；The PDCCH after decoding is descrambled using terminal iidentification, the Downlink Control Information DCI for containing CRC CRC is obtained;When the CRC is correct, obtained DCI content is parsed；When the sequence that the DCI obtained content is not in for DCI to be detected, stop follow-up PDCCH blind Detecting.
On the other hand, the embodiment of the present invention also provides a kind of physical layer descending control channel PDCCH blind Detecting device, and described device includes：Decoding unit, row decoding is entered for the form according to DCI to be detected to PDCCH；Descrambling unit, for descrambling using terminal iidentification to the PDCCH after decoding, obtains the Downlink Control Information DCI for containing CRC CRC;Resolution unit, for when the CRC is correct, parsing obtained DCI content；Judging unit, for when the sequence that the DCI obtained content is not in for DCI to be detected, stopping follow-up PDCCH blind Detecting.
Another aspect, the embodiment of the present invention provides a kind of resource regulating method, and methods described includes：Select the Downlink Control Information DCI of at least one form, the sequence for being not in using the DCI fills the content of the DCI；Cyclic redundancy check (CRC) processing is carried out to the DCI；Using target terminal
Mark to CRC processing after information scramble；Information after scrambling is subjected to coded modulation, is mapped in PDCCH resource and launches.
Also on the one hand, the embodiment of the present invention provides a kind of resource scheduling device, and described device includes：DCI formation units, Downlink Control Information DCI for selecting at least one form, the sequence for being not in using the DCI fills the content of the DCI；CRC processing units, for carrying out cyclic redundancy check (CRC) processing to the DCI；Scrambling unit, is scrambled for the mark using target terminal to the information after CRC processing；Transmitter unit, for the information after scrambling to be carried out into coded modulation, is mapped in PDCCH resource and launches.
The method of the embodiment of the present invention employs a kind of special PDCCH to inform corresponding terminal：Do not correspond to the resource scheduling information of the terminal in the burst；When terminal detects the special PDCCH, follow-up PDCCH blind Detectings will be no longer carried out.The MS that this method is not dispatched to those, can reduce its PDCCH blind Detecting number of times, so as to reduce MS power consumption as far as possible.
Brief description of the drawings
Fig. 1 for PDCCH and PDSCH in a subframe in the prior art graph of a relation；
Fig. 2 is the method flow diagram of the embodiment of the present invention 1；
Fig. 3 is the functional block diagram of the device of the embodiment of the present invention 1；
Fig. 4 is a kind of real work principle schematic of the device of the embodiment of the present invention 1；
Fig. 5 is the method flow diagram of the embodiment of the present invention 2；
Fig. 6 is the functional block diagram of the device of the embodiment of the present invention 2；
Fig. 7 is a kind of real work principle schematic of the device of the embodiment of the present invention 2.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made belongs to the scope of protection of the invention.
Embodiment 1：The present embodiment provides a kind of resource regulating method and device.The resource regulating method of the present embodiment and the device special PDCCH channel formats that to devise a kind of and existing each PDCCH compatible, referred to as Blank (blank） PDCCH.If the scheduling of resource in present sub-frame not to some MS, then indicate that present sub-frame does not have scheduling of resource to the MS with Blank PDCCH.Once MS detects Blank PDCCH, stop follow-up PDCCH blind Detectings immediately.
The application scenarios of this embodiment scheme can include：
1) when arranged it is all have the PDCCH of scheduling of resource in present sub-frame after, when still having the PDCCH spaces that part is not utilized, Blank PDCCH can be sent in these PDCCH resources, preferentially the MS few to those dump energies sends Blank PDCCH, reduces these MS power consumption.
2) when network load is lighter, now PDCCH and PDSCH resources may have more than needed, some MS transmission Blank PDCCH can be given with those idle PDCCH resources, so as to reduce these MS power consumption.
The Blank PDCCH of the present embodiment design requirement is：
1) try one's best and reduce introducing due to Blank PDCCH and the maximum blind Detecting number of times of increased PDCCH, after increase Blank PDCCH, maximum blind Detecting number of times also and originally as.
2) Blank PDCCH can make a distinction with other normal PDCCH, so that MS-denier detects Blank PDCCH, be known that scheduling of resource of this subframe without oneself, and stop follow-up PDCCH blind Detectings.
Fig. 2 is the method flow diagram of the present embodiment.As shown in Fig. 2 the method for the present embodiment includes：
S20K selects the Downlink Control Information DCI of at least one form, and the sequence that can not possibly be occurred using the DCI fills the content of the DCI；
The method of the present embodiment uses original 10 kinds of DCI forms for compatible existing PDCCH, and certain selected DCI particular content simply is replaced with into the bad such as full 0 sequence of sequence that the DCI can not possibly occur.The value of the sequence can also be appointed with terminal in advance, in order to terminal recognition.Those skilled in the art be understand that, various sequences, but some sequences are likely to occur in DCI content
(such as full 0 sequence）It is not appear in DCI, the sequence for being so not in is exactly the sequence that the DCI can not possibly occur.
Alternatively, the present embodiment can select a kind of DCI format respectively for different MS；Or select a kind of common DCI format for all MS；Or more than one DCI is selected for some MS, to increase the probability that the MS detects Blank PDCCH, Jin mono- Walk reduce the power consumption of the MS.Specific design, is carried out according to actual needs.
S202, carries out cyclic redundancy check (CRC) (Cyclic Redundancy Check) to the DCI and handles；The Walk is that, in order to ensure the reliability of transmitting procedure, specific CRC algorithm is prior art content, is not described in detail herein suddenly.
S203, using target terminal mark to CRC processing after information scramble；
The Walk first has to determine the terminal without scheduling of resource suddenly, and the Blank PDCCH are to correspond to these target terminals chosen.Alternatively, the target terminal of the present embodiment can be the low terminal of dump energy or the terminal with low-power consumption demand.The purpose of scrambling is so that each MS can distinguish whether currently detected normal PDCCH or Blank PDCCH are intended for the PDCCH of oneself.Such as, UE1 is received after the PDCCH for issuing UE2, is descrambled with UE1 mark, then can not be detected by CRC.Alternatively, the target terminal of the present embodiment is designated RNTI (Radio Network Temporary Identifier, Radio Network Temporary Identifier）.
S204, by after scrambling information carry out coded modulation after, be mapped in PDCCH resource launch.Blank PDCCH are mapped to not using PDCCH spatially by the present embodiment after normal PDCCH has been mapped.So-called mapping is exactly that the complete PDCCH of coded modulation is placed on before subframe on 13 OFDM symbol some CCE.
Fig. 3 is the functional block diagram of the present embodiment device, and the device can realize the resource regulating method of the present embodiment, and the device of the present embodiment can be base station equipment.As shown in figure 3, the device 30 includes：DCI formation units 301, Downlink Control Information DCI for selecting at least one form, the sequence that can not possibly be occurred using the DCI fills the content of the DCI；CRC processing units 302, for carrying out CRC processing to the DCI；Scrambling unit 303, for using target terminal mark to CRC at
Information after reason is scrambled；Transmitter unit 304, for the information after scrambling to be carried out after coded modulation, is mapped in PDCCH resource and launches.Alternatively, the device 30 of the present embodiment also includes：Terminal selecting unit（Do not show in figure）, for selecting the low terminal of dump energy or terminal with low-power consumption demand as target terminal.
Fig. 4 is a kind of real work principle schematic of the present embodiment device.As shown in figure 4, first, using any current existing DCI format（Such as DCI 1A, UE is required for having detected whether DCI 1A under any emission mode), each domain in former DCI is set to the specific sequence that former DCI is not in（Such as full 0 sequence）' then, by CRC, scrambling, coding, rate matching procedure processing（These processes are as normal PDCCH processing procedure）；Finally the information after processing is mapped in PDCCH resource as Blank PDCCH modulation and launched.
The resource regulating method and device of the present embodiment, employ a kind of special PDCCH to inform corresponding terminal：Do not correspond to the resource scheduling information of the terminal in the burst；When terminal detects the special PDCCH, follow-up PDCCH blind Detectings will be no longer carried out.The MS that this method is not dispatched to those, its PDCCH blind Detecting number of times can be reduced as far as possible, MS power consumption is reduced.Therefore, the method and apparatus of the present embodiment can realize more excellent scheduling of resource.Embodiment 2:The present embodiment provides a kind of blind checking method and device.The blind checking method of the present embodiment is used cooperatively with device and the resource regulating method of embodiment 1 with device, realizes the optimization of blind Detecting.The device of the present embodiment can be terminal device.
Fig. 5 is the method flow diagram of the present embodiment.As shown in figure 5, the method for the present embodiment includes：
S50K enters row decoding according to DCI to be detected form to PDCCH；
Generally, MS sides can detect the PDCCH of different DCI formats under different sending modes, and different decoded modes is used for different DCI formats.
S502, using terminal iidentification the PDCCH after decoding is descrambled, obtain the Downlink Control Information DCI for containing CRC CRC;
If base station side uses terminal iidentification and scrambled, end side is descrambled using same terminal iidentification, is descrambled and is successfully then shown that the PDCCH is the PDCCH corresponding to terminal itself.Alternatively, the terminal iidentification is RNTI.
S503, when CRC is correct, parse obtained DCI content；
S504, when the sequence that the DCI obtained content can not possibly occur for the DCI to be detected, stop follow-up PDCCH blind Detecting.
If DCI content is full 0 sequence, the sequence is the bad schedule information for now showing not having corresponding to the MS in the subframe of sequence that DCI to be detected can not possibly occur, and the MS need not carry out follow-up detection to other PDCCH；Conversely, then needing to parse the value of parameters in DCI, and continue to detect other possible PDCCH.
Fig. 6 is the functional block diagram of the present embodiment device, and the device can realize the blind checking method of the present embodiment, and the device of the present embodiment can be terminal device.As shown in fig. 6, the device includes：Decoding unit 601, row decoding is entered for the form according to DCI to be detected to PDCCH；Descrambling unit 602, for descrambling using terminal iidentification to the PDCCH after decoding, obtains the Downlink Control Information DCI for containing CRC CRC;Resolution unit 603, for when CRC is correct, parsing obtained DCI content；Judging unit 604, for when the sequence that the DCI obtained content can not possibly occur for DCI to be detected, stopping follow-up PDCCH blind Detecting.
Fig. 7 is a kind of real work principle schematic of the present embodiment device.As shown in Figure 7：After MS receiving terminals first pass through demapping, demodulation, solution rate-matched, Viterbi decodings are finished by DCI format to be measured, if CRC is correct after descrambling, then Jin mono- Walk parse obtained DCI content, if the DCI contents obtained are the sequence (such as full 0) that DCI to be measured is not in, then it is determined as Blank PDCCH, stops the follow-up PDCCH detections of this subframe；Otherwise, each domain is parsed by DCI format to be measured, and continues to detect other possible PDCCH.
The method and apparatus of the present embodiment, being known by detecting Blank PDCCH does not have the schedule information comprising corresponding to the MS in the subframe, the follow-up PDCCH blind Detectings of the subframe are stopped after Blank PDCCH once detecting.This method need not increase the decoding number of times of blind Detecting with device, only be
Decoded and CRC it is correct after, increase by one judge DCI contents whether be the sequence (such as full 0 sequence) that DCI to be measured is not in operation, on the blind Detecting of original system influence very little, can but substantially reduce MS power consumption.
One of ordinary skill in the art will appreciate that realizing all or part of flow in above-described embodiment method, computer program is can be by instruct the hardware of correlation to complete, described program can be stored in a computer read/write memory medium, the program is upon execution, it may include such as the flow of the embodiment of above-mentioned each method.Wherein, described storage medium can be magnetic disc, CD, read-only memory (Read-Only Memory, ROM) or random access memory (Random Access Memory, RAM) etc..
Above example is only to the technical scheme for illustrating the embodiment of the present invention, rather than its limitations；Although the embodiment of the present invention is described in detail with reference to the foregoing embodiments, it will be understood by those within the art that：It can still modify to the technical scheme described in foregoing embodiments, or carry out equivalent substitution to which part technical characteristic；And these modifications or replacement, the essence of appropriate technical solution is departed from the spirit and scope of each embodiment technical scheme of the embodiment of the present invention.
Claims (10)
- Claims1st, a kind of physical layer descending control channel PDCCH blind checking method, it is characterised in that methods described includes：Form according to Downlink Control Information DCI to be detected enters row decoding to PDCCH；The PDCCH after decoding is descrambled using terminal iidentification, the Downlink Control Information DCI for containing CRC CRC is obtained;When the CRC is correct, obtained DCI content is parsed；When the sequence that the DCI obtained content is not in for DCI to be detected, stop follow-up PDCCH blind Detecting.2nd, according to the method described in claim 1, it is characterised in that the DCI format to be detected isDCI 1A forms.3rd, according to the method described in claim 1, it is characterised in that the sequence that the DCI to be detected is not in is full 0 sequence.4th, a kind of physical layer descending control channel PDCCH blind Detecting device, it is characterised in that described device includes：Decoding unit, row decoding is entered for the form according to Downlink Control Information DCI to be detected to PDCCH；Descrambling unit, for descrambling using terminal iidentification to the PDCCH after decoding, obtains the Downlink Control Information DCI for containing CRC CRC;Resolution unit, for when the CRC is correct, parsing obtained DCI content；Judging unit, for when the sequence that the DCI obtained content is not in for DCI to be detected, stopping follow-up PDCCH blind Detecting.5th, device according to claim 4, it is characterised in that described device is a terminal device.6th, a kind of resource regulating method, it is characterised in that methods described includes：Select the Downlink Control Information DCI of at least one form, the sequence for being not in using the DCI Arrange to fill the content of the DCI；Cyclic redundancy check (CRC) processing is carried out to the DCI；The information after CRC processing is scrambled using the mark of target terminal；Information after scrambling is subjected to coded modulation, is mapped in PDCCH resource and launches.7th, method according to claim 6, it is characterised in that also include：The low terminal of selection dump energy or the terminal with low-power consumption demand are used as target terminal.8th, a kind of resource scheduling device, it is characterised in that described device includes：DCI formation units, the Downlink Control Information DCI for selecting at least one form, using describedThe sequence that DCI is not in fills the content of the DCI；CRC processing units, for carrying out cyclic redundancy check (CRC) processing to the DCI；Scrambling unit, is scrambled for the mark using target terminal to the information after CRC processing；Transmitter unit, for the information after scrambling to be carried out into coded modulation, is mapped in PDCCH resource and launches.9th, device according to claim 8, it is characterised in that described device also includes：Terminal selecting unit, for selecting the low terminal of dump energy or terminal with low-power consumption demand as target terminal.10th, device according to claim 8, it is characterised in that described device is base station.
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| Application Number | Priority Date | Filing Date | Title |
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| PCT/CN2009/074533 WO2011047506A1 (en) | 2009-10-20 | 2009-10-20 | Method for blind detection of physical downlink control channel (pdcch), and method and device for scheduling resources |
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| CN103178883A (en) * | 2011-12-26 | 2013-06-26 | 华为技术有限公司 | Processing method, transmitting terminal and user terminal for physical downlink control channel data |
| CN105577336A (en) * | 2014-10-17 | 2016-05-11 | 联芯科技有限公司 | False detection preventive method and system for downlink control information in LTE (-A) system |
| CN105743603A (en) * | 2014-12-07 | 2016-07-06 | 联芯科技有限公司 | DCI anti-false detection method and system |
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| CN109429569A (en) * | 2017-06-20 | 2019-03-05 | 北京小米移动软件有限公司 | A kind of detection method and device of dispatch |
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| WO2012159368A1 (en) * | 2011-08-05 | 2012-11-29 | 华为技术有限公司 | Blind detection method and device |
| CN103139844B (en) * | 2011-11-22 | 2016-09-14 | 华为技术有限公司 | The analytic method of control information and terminal |
| CN106332242A (en) * | 2015-06-30 | 2017-01-11 | 展讯通信（上海）有限公司 | Method and apparatus for lowering power consumption of UE side in LTE network |
| CN106817771B (en) * | 2015-11-27 | 2020-05-12 | 大唐移动通信设备有限公司 | Method and device for processing PDCCH (physical Downlink control channel) missing detection |
| US10326578B2 (en) | 2017-02-13 | 2019-06-18 | At&T Intellectual Property I, L.P. | Early termination scheme for blind decoding of a downlink control channel |
| CN108418657B (en) * | 2018-02-07 | 2021-06-04 | 广州慧睿思通信息科技有限公司 | Method for judging DCI format and transmission mode in LTE system |
| CN109196798B (en) * | 2018-08-31 | 2021-11-09 | 北京小米移动软件有限公司 | Auxiliary method and device for detecting physical downlink control channel |
| CN110881217B (en) * | 2018-09-05 | 2022-10-18 | 上海朗帛通信技术有限公司 | Method and device used in user equipment and base station for wireless communication |
| CN109673056B (en) * | 2019-03-11 | 2022-04-05 | 重庆邮电大学 | PDCCH (physical Downlink control channel) adaptive blind detection method based on power measurement in 5G (third generation) system |
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| CN101119277A (en) * | 2006-08-03 | 2008-02-06 | 北京三星通信技术研究有限公司 | Device and method for transmitting control signalling |
| US8687745B2 (en) * | 2007-12-13 | 2014-04-01 | Telefonaktiebolaget Lm Ericsson (Publ) | Method and apparatus for blind decoding |
| CN101483441A (en) * | 2008-01-07 | 2009-07-15 | 三星电子株式会社 | Device for adding cyclic redundancy check in communication system |
| CN101505498B (en) * | 2009-03-17 | 2014-02-05 | 中兴通讯股份有限公司 | Downlink control information sending method, related system and apparatus |
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- 2009-10-20 CN CN200980149010.9A patent/CN102246449B/en not_active Expired - Fee Related
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Also Published As
| Publication number | Publication date |
|---|---|
| CN102246449B (en) | 2014-05-07 |
| WO2011047506A1 (en) | 2011-04-28 |
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