CN105515718B - A kind of method and apparatus that multi-service control channel is sent - Google Patents
A kind of method and apparatus that multi-service control channel is sent Download PDFInfo
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- CN105515718B CN105515718B CN201410493803.5A CN201410493803A CN105515718B CN 105515718 B CN105515718 B CN 105515718B CN 201410493803 A CN201410493803 A CN 201410493803A CN 105515718 B CN105515718 B CN 105515718B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/06—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
Abstract
The present invention provides a kind of method that multi-service control channel is sent, and is applied to physical downlink control channel PDCCH, which comprises when user equipment (UE) carries N number of business, configures multi-service Downlink Control Information DCI, 1≤N；It include service attribute and UE attribute in the multi-service DCI, the service attribute is the respective service attribute domain set of N number of business, and service dispatching information is contained in the service attribute domain, and the UE attribute is unique；DCI when carrying N number of business for the UE configures the corresponding degree of polymerization and candidate grade；The DCI is sent on the PDCCH.The present invention is according to the multi-service number N of user UE, transmission mode, communication scenes etc. many factors, define a variety of degree of polymerization S- candidate's grade M set, the availability of frequency spectrum of PDCCH transmission when improving same UE multi-service, the transmission performance that ensure that control channel reduces the DCI detection number of receiving side UE.
Description
Technical field
The present invention relates to wireless communication fields, and in particular to multiple services LTE PDCCH (Physical Downlink
Control Channel, down control channel) send method and apparatus.
Background technique
For LTE wireless communication system, existing PDCCH channel is with a variety of DCI (Downlink Control
Information, Downlink Control Information) format transmission, carry PDSCH (Physical Downlink Shared
Channel, Physical Downlink Shared Channel) channel scheduling and control information, such as transformat, resource allocation and uplink scheduling
License etc..
In the multi-service communications applications of same user equipment (UE), i.e., when same UE can carry multiple business, Duo Geye
Business is respectively adopted the sending method that multiple DCI carry out control channel scheduling and does not have the optimal availability of frequency spectrum.
Summary of the invention:
The multi-service control that the problem to be solved by the invention is to provide a kind of for same equipment UE multi-service under
The method and apparatus that channel is sent guarantee DCI transmission performance, while reducing terminal to improve the availability of frequency spectrum of PDCCH channel
The DCI blind detection of UE surveys complexity.
In order to solve the above-mentioned technical problem, this application provides a kind of method that multi-service control channel is sent, it is applied to
Physical downlink control channel PDCCH, which comprises
When user equipment (UE) carries N number of business, multi-service Downlink Control Information DCI, 1≤N are configured；
It include service attribute and UE attribute in the multi-service DCI, the service attribute is N number of respective industry of business
Service dispatching information is contained in business Attribute domain set, the service attribute domain, and the UE attribute is unique；
DCI when carrying N number of business for the UE configures the corresponding degree of polymerization and candidate grade；
The DCI is sent on the PDCCH.
Preferably,
The corresponding service attribute domain of each business；When the business of UE carrying is more than or equal to 2, any two business
Transmission mode it is identical or not identical；
The UE attribute of each business of the UE carrying is identical.
Preferably,
DCI when carrying N number of business for the UE configures the corresponding degree of polymerization and candidate grade includes:
According to the type of the maximum number W of the UE bearer service and each multi-service DCI, configure degree of polymerization set S and
Candidate grade set M, wherein S={ s1,s2,…sk, M={ m1,m2,…mk, 1≤k≤W；
DCI configuration degree of polymerization s when N number of business is carried for the UEpAnd candidate grade mp, wherein 1≤p≤k, 1≤N≤
W。
Preferably,
According to the type of the maximum number W of the UE bearer service and each multi-service DCI, configure degree of polymerization set S and
Candidate grade set M includes:
The case where UE is carried i business and user equipment i+j business of carrying is divided into a seed type, wherein 0
≤ j≤1,1≤i≤W；
When the maximum number of the UE bearer service is W, it is divided into k seed type；
Degree of polymerization s is configured in the case where same typepAnd configure candidate grade degree mp。
Preferably,
The service dispatching information includes modulation system, resource allocation, HARQ is retransmitted and precoding.
The present invention also provides the devices that a kind of multi-service control channel is sent, and are applied to physical downlink control channel PDCCH,
Stating device includes:
Configuration module, for when user equipment (UE) carry N number of business when, configure multi-service Downlink Control Information DCI, 1≤
N；DCI when being also used to carry N number of business for the UE configures the corresponding degree of polymerization and candidate grade；
It wherein, include service attribute and UE attribute in the multi-service DCI, the service attribute is that N number of business is each
From service attribute domain gather, the service attribute domain contains service dispatching information, and the UE attribute is unique；
Sending module, for sending the DCI of the configuration module configuration on the PDCCH.
Preferably,
The corresponding service attribute domain of each business；When the business of UE carrying is more than or equal to 2, any two business
Transmission mode it is identical or not identical；
The UE attribute of each business of the UE carrying is identical.
Preferably,
The DCI when configuration module is also used to carry N number of business for the UE configures the corresponding degree of polymerization and candidate
Grade refers to:
According to the type of the maximum number W of the UE bearer service and each multi-service DCI, configure degree of polymerization set S and
Candidate grade set M, wherein S={ s1,s2,…sk, M={ m1,m2,…mk, 1≤k≤W；
DCI configuration degree of polymerization s when N number of business is carried for the UEpAnd candidate grade mp, wherein 1≤p≤k, 1≤N≤
W。
Preferably,
According to the type of the maximum number W of the UE bearer service and each multi-service DCI, configure degree of polymerization set S and
Candidate grade set M refers to:
The case where UE is carried i business and UE i+j business of carrying is divided into a seed type, wherein and 0≤j≤
1,1≤i≤W；
When the maximum number of the UE bearer service is W, it is divided into k seed type；
Degree of polymerization s is configured in the case where same typepAnd configure candidate grade degree mp。
Preferably,
The service dispatching information includes modulation system, resource allocation, HARQ is retransmitted and precoding.
Degree of polymerization S- candidate's grade M set definition of above scheme is not unique, can be in the multi-service number for fully considering UE
N, under the background of the factors such as transmission mode, communication scenes, a variety of S-M set is defined, DCI adaptive scheduling and blind Detecting are carried out,
The availability of frequency spectrum of PDCCH transmission when improving same UE multi-service, and it is suitable according to multi-service type categorizing selection
Degree of polymerization set guarantees the transmission performance of control channel, reduces the DCI detection number of receiving side UE.
Detailed description of the invention
Fig. 1 is the method schematic diagram that two uplink service DCI12 of UE1 in the embodiment of the present invention one are sent；
Fig. 2 is the method schematic diagram that three downlink business DCI15 of UE2 in the embodiment of the present invention one are sent；
Fig. 3 is the method schematic diagram that four downlink business DCI18 of UE3 in the embodiment of the present invention one are sent；
Fig. 4 is the structural schematic diagram for the device that multi-service control channel is sent in the embodiment of the present invention one.
Specific embodiment
For the purposes, technical schemes and advantages of the application are more clearly understood, below in conjunction with attached drawing to the application
Embodiment be described in detail.It should be noted that in the absence of conflict, in the embodiment and embodiment in the application
Feature can mutual any combination.
For the availability of frequency spectrum for improving PDCCH channel, the present inventor provides a kind of method that multi-service control channel is sent,
Suitable DCI scheduling degree of polymerization S- candidate's grade M set is selected according to multi-service actual conditions, to realize multi-service control channel
High spectrum utilization and reliably control channel transmit.Specifically include following technical scheme:
A kind of method that multi-service control channel is sent, is applied to physical downlink control channel PDCCH, which is characterized in that
The described method includes:
Step 1: configuring multi-service Downlink Control Information DCI, 1≤N when user equipment (UE) carries N number of business；
It include service attribute and UE attribute in the multi-service DCI, the service attribute is N number of respective industry of business
Service dispatching information is contained in business Attribute domain set, the service attribute domain, and the UE attribute is unique.
The corresponding service attribute domain of each business；When the business of UE carrying is more than or equal to 2, any two business
Transmission mode it is identical or not identical, the UE attribute of each business of UE carrying is identical；The service dispatching information includes
Modulation system, resource allocation, HARQ re-transmission and precoding etc..
Step 2: DCI when carrying N number of business for the UE configures the corresponding degree of polymerization and candidate grade；
It specifically includes:
According to the type of the maximum number W of the UE bearer service and each multi-service DCI, configure degree of polymerization set S and
Candidate grade set M, wherein S={ s1,s2,…sk, M={ m1,m2,…mk, 1≤k≤W；
In specific operating process, the case where UE i business of carrying and UE i+j business of carrying, is divided into one kind
Type, wherein 0≤j≤1,1≤i≤W；When the maximum number of the UE bearer service is W, it is divided into k seed type；
Degree of polymerization s is configured in the case where same typepAnd configure candidate grade degree mp；
DCI configuration degree of polymerization s when N number of business is carried for the UEpAnd candidate grade mp, wherein 1≤p≤k, 1≤N≤
W。
Step 3: sending the DCI on the PDCCH.
It should be noted that spAnd mpValue can do corresponding setting according to the actual situation, be not specifically limited herein.
In the following, illustrating degree of polymerization S- candidate's grade M set division rule by taking UE at most carries 3 business as an example:
When UE at most carries 3 business, there can be the following 3 kinds rules for defining degree of polymerization S- candidate's grade M set:
The first rule, according to 3 kinds of business concrete conditions, it is a seed type, carrying that UE can be carried to 1 delineation of activities
2 delineations of activities are a seed type, and carrying 3 delineations of activities is a seed type, under this division rule, S={ s1,s2,
s3, M={ m1,m2,m3}；S is taken when carrying 1 business1,m1, s is taken when carrying 2 business2,m2, s is taken when carrying 3 business3,
m3；
Second of rule, it is a seed type that UE, which is carried 1 or 2 delineation of activities, and carrying 3 delineations of activities is a type
Type, under this division rule, S={ s1,s2, M={ m1,m2}；S is taken when carrying 1 or 2 business1,m1, when carrying 3 business
Take s2,m2；
The third rule, it is a seed type that UE, which is carried 1 delineation of activities, and carrying 2 or 3 delineations of activities is a type
Type, under this division rule, S={ s1,s2, M={ m1,m2, s is taken when carrying 1 business1,m1, when carrying 2 or 3 business
Take s2,m2。
As 1 < i < W, UE carry i business the case where can individually be divided into a seed type, can also with UE carrying i+1
Or the case where i-1 business, is divided into one kind.
Technical solution of the present invention will be described in further detail with reference to the accompanying drawing.
Embodiment one:
As shown in Figure 1, UE1 has 2 uplink services, using identical radiation pattern, i.e. single antenna port emission mode.It is right
Answer multi-service DCI12, transmission mode TM12.Due to there was only 2 kinds of business, so DCI12 uses S1=[1,2,4,8] control letter
The road cell CCE degree of polymerization, M1=[6,6,2,2] candidate's grade is scheduled and detects.
As shown in Fig. 2, UE2 there are 3 downlink business, using different radiation patterns, that is, transmitting diversity is respectively adopted, prolongs greatly
8 layers of wave beam forming emission mode of slow CDD and port 7-14.Corresponding multi-service DCI15, transmission mode TM15.Due to having 3
Kind business, so DCI15 uses S2=[2,4,8,16] the CCE degree of polymerization, M2=[2,2,2,2] candidate's grade is scheduled and detects.
In the present embodiment, the content of DCI15 includes: 1) 1# service attribute packet, which uses resource allocation type 0,
Occupy the scheduling informations such as 0~3# resource block RB, MCS=4, RV=0, NDI=0；2) 2# service attribute packet, the business is using money
Source distribution type 0 occupies 8~35#RB, the MCS=16 of transport block1, RV=0, NDI=0, transport
The MCS=16 of block2, RV=0, the scheduling informations such as NDI=0.3) 3# service attribute packet, the business use resource allocation class
Type 0, occupy 40~79#RB, the MCS=20 of transport block1, RV=0, NDI=0, transport block2's
MCS=25, RV=0, NDI=0, Antenna port (s), scrambling identity and number of layers
The scheduling informations such as=7.Carrier indicator=0, the information group such as SRS request=1 are defined in the UE attribute of DCI
At UE attribute packet.Three service attribute packet concatenated in order form the multi-service DCI15 of UE2 in tail portion affix UE attribute packet.
As shown in figure 3, UE3 there are 4 downlink business, transmitting diversity, transmitting diversity, big delay CDD is respectively adopted and closes
Annular space is multiplexed emission mode.Corresponding multi-service DCI18, transmission mode TM18.Due to there is 4 kinds of business, so DCI18 is used
S3=[4,8,16,32] the CCE degree of polymerization, M3=[2,2,2,2] candidate's grade is scheduled and detects.
In the case where UE3 has 4 downlink business, the content of DCI18 includes: that 1) 1# service attribute packet, the business are adopted
With resource allocation type 0,0~7#RB, MCS=9, RV=0, the scheduling informations such as NDI=0 are occupied；2) 2# service attribute packet, should
Business uses resource allocation type 0, occupies 8~19#RB, MCS=15, RV=0, the scheduling informations such as NDI=0；3) 3# business
Attribute packet, the business use resource allocation type 0, occupy 32~47#RB, MCS=20, the RV=0 of transport block1,
The MCS=20 of NDI=0, transport block2, RV=0, NDI=0, Precoding information=2 etc. scheduling
Information.4) 4# service attribute packet, the business use resource allocation type 0, occupy 80~91#RB, transport block1
MCS=25, RV=0, NDI=0, the MCS=25 of transport block2, RV=0, NDI=0, Precoding
The scheduling informations such as information=2.Carrier indicator=1, SRS request are defined in the UE attribute of DCI
The information such as=1 form UE attribute packet.Three service attribute packet concatenated in order form the more of UE3 in tail portion affix UE attribute packet
Business DCI18.
Multi-service control channel design proposed by the present invention improves control channel transmission when same UE multi-service circumstances
The availability of frequency spectrum selects suitable DCI degree of polymerization set, ensure that the transmission performance of control channel, also reduces blind Detecting time
Number, so as to complete efficient, reliable multi-service communication.
Meanwhile the application also provides a kind of device that multi-service control channel is sent, and is applied to Physical Downlink Control Channel
PDCCH, described device include:
Configuration module 11, for when user equipment (UE) carry N number of business when, configure multi-service Downlink Control Information DCI, 1
≤N；DCI when being also used to carry N number of business for the UE configures the corresponding degree of polymerization and candidate grade；
It wherein, include service attribute and UE attribute in the multi-service DCI, the service attribute is that N number of business is each
From service attribute domain gather, the service attribute domain contains service dispatching information, and the UE attribute is unique；
Sending module 12, for sending the DCI of the configuration module configuration on the PDCCH.
Preferably,
The corresponding service attribute domain of each business；When the business of UE carrying is more than or equal to 2, any two business
Transmission mode it is identical or not identical；
The UE attribute of each business of the UE carrying is identical.
Preferably,
The DCI when configuration module 11 is also used to carry N number of business for the UE configures the corresponding degree of polymerization and time
Grade is selected to refer to:
According to the type of the maximum number W of the UE bearer service and each multi-service DCI, configure degree of polymerization set S and
Candidate grade set M, wherein S={ s1,s2,…sk, M={ m1,m2,…mk, 1≤k≤W；
DCI degree of polymerization s when N number of business is carried for the UEpAnd candidate grade mp, wherein 1≤p≤k, 1≤N≤W.
Preferably,
According to the type of the maximum number W of the UE bearer service and each multi-service DCI, configure degree of polymerization set S and
Candidate grade set M refers to:
The case where UE is carried i business and UE i+j business of carrying is divided into a seed type, wherein and 0≤j≤
1,1≤i≤W；
When the maximum number of the UE bearer service is W, it is divided into k seed type；
Degree of polymerization s is configured in the case where same typepAnd configure candidate grade degree mp。
Preferably,
The service dispatching information includes modulation system, resource allocation, HARQ is retransmitted and precoding.
The present invention can also have other various embodiments.For example, here may be used there are many definition of LTE downlink multi-service DCI format
To define several be applicable in and the typical format of actual communications applications scene.Simultaneously, it is contemplated that meeting the case where bearer service number
Cause DCI length different, so the transmission detection performance of DCI can be guaranteed by neatly defining suitable CCE degree of polymerization set.It is poly-
The Rational Classification of right set decreases DCI detection number.Without deviating from the spirit and substance of the present invention, ripe
It knows those skilled in the art and makes various corresponding changes and modifications, but these corresponding changes and change in accordance with the present invention
Shape all should fall within the scope of protection of the appended claims of the present invention.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.Those of ordinary skill in the art will appreciate that
All or part of the steps in the above method can instruct related hardware to complete by program, and described program can store in calculating
In machine readable storage medium storing program for executing, such as read-only memory, disk or CD.Optionally, all or part of the steps of above-described embodiment
Also one or more integrated circuits can be used to realize, correspondingly, each module/module in above-described embodiment can be using hard
The form of part is realized, can also be realized in the form of software function module.The application is not limited to the hard of any particular form
The combination of part and software.
Claims (6)
1. a kind of method that multi-service control channel is sent is applied to physical downlink control channel PDCCH, which is characterized in that institute
The method of stating includes:
When user equipment (UE) carries N number of business, multi-service Downlink Control Information DCI, 1≤N are configured；
It include service attribute and UE attribute in the multi-service DCI, the service attribute is N number of respective business category of business
Property domain set, the service attribute domain contains service dispatching information, and the UE attribute is unique；
DCI when carrying N number of business for the UE configures the corresponding degree of polymerization and candidate grade；
The DCI is sent on the PDCCH；
DCI when carrying N number of business for the UE configures the corresponding degree of polymerization and candidate grade includes:
According to the type of the maximum number W of the UE bearer service and each multi-service DCI, degree of polymerization set S and candidate are configured
Grade set M, wherein S={ s1,s2,…sk, M={ m1,m2,…mk, k indicates each in degree of polymerization set S and candidate grade set M
From the number of included element, 1≤k≤W；
DCI configuration degree of polymerization s when N number of business is carried for the UEpAnd candidate grade mp, wherein spIndicate degree of polymerization set S
In p-th of degree of polymerization value, mpIndicate the value of p-th of candidate grade in candidate grade set M, 1≤p≤k, 1≤N≤W；
According to the type of the maximum number W of the UE bearer service and each multi-service DCI, degree of polymerization set S and candidate are configured
Grade set M include:
The case where UE is carried i business and user equipment i+j business of carrying is divided into a seed type, wherein 0≤j
≤ 1,1≤i≤W；
When the maximum number of the UE bearer service is W, it is divided into k seed type；
Degree of polymerization s is configured in the case where same typepAnd configure candidate grade degree mp。
2. the method as described in claim 1, it is characterised in that:
The corresponding service attribute domain of each business；When the business of UE carrying is more than or equal to 2, the biography of any two business
Defeated mode is identical or not identical；
The UE attribute of each business of the UE carrying is identical.
3. method according to claim 1 or 2, it is characterised in that:
The service dispatching information includes modulation system, resource allocation, HARQ is retransmitted and precoding.
4. the device that a kind of multi-service control channel is sent is applied to physical downlink control channel PDCCH, which is characterized in that institute
Stating device includes:
Configuration module, for configuring multi-service Downlink Control Information DCI, 1≤N when user equipment (UE) carries N number of business；Also
The corresponding degree of polymerization and candidate grade are configured for DCI when carrying N number of business for the UE；
It wherein, include service attribute and UE attribute in the multi-service DCI, the service attribute is that N number of business is respective
Service dispatching information is contained in service attribute domain set, the service attribute domain, and the UE attribute is unique；
Sending module, for sending the DCI of the configuration module configuration on the PDCCH；
Wherein, the DCI when configuration module is also used to carry N number of business for the UE configures the corresponding degree of polymerization and candidate
Grade refers to:
According to the type of the maximum number W of the UE bearer service and each multi-service DCI, degree of polymerization set S and candidate are configured
Grade set M, wherein S={ s1,s2,…sk, M={ m1,m2,…mk, k indicates each in degree of polymerization set S and candidate grade set M
From the number of included element, 1≤k≤W；
DCI configuration degree of polymerization s when N number of business is carried for the UEpAnd candidate grade mp, wherein spIndicate degree of polymerization set S
In p-th of degree of polymerization value, mpIndicate the value of p-th of candidate grade in candidate grade set M, 1≤p≤k, 1≤N≤W；
According to the type of the maximum number W of the UE bearer service and each multi-service DCI, degree of polymerization set S and candidate are configured
Grade set M refers to:
The case where UE is carried i business and UE i+j business of carrying is divided into a seed type, wherein 0≤j≤1,1≤
i≤W；
When the maximum number of the UE bearer service is W, it is divided into k seed type；
Degree of polymerization s is configured in the case where same typepAnd configure candidate grade degree mp。
5. device as claimed in claim 4, it is characterised in that:
The corresponding service attribute domain of each business；When the business of UE carrying is more than or equal to 2, the biography of any two business
Defeated mode is identical or not identical；
The UE attribute of each business of the UE carrying is identical.
6. device as described in claim 4 or 5, it is characterised in that:
The service dispatching information includes modulation system, resource allocation, HARQ is retransmitted and precoding.
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| CN201410493803.5A CN105515718B (en) | 2014-09-19 | 2014-09-24 | A kind of method and apparatus that multi-service control channel is sent |
| PCT/CN2015/074403 WO2015154611A1 (en) | 2014-09-19 | 2015-03-17 | Method and device for transmitting multi-service control channel |
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| WO2019161549A1 (en) * | 2018-02-23 | 2019-08-29 | Oppo广东移动通信有限公司 | Downlink control information transmission method, terminal device and network device |
| CN110677217B (en) * | 2018-07-03 | 2021-05-11 | 电信科学技术研究院有限公司 | Data transmission method and device |
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| CN1972177A (en) * | 2006-11-29 | 2007-05-30 | 北京邮电大学 | Method of jointly fixing automatic request retransmission and scheduling algorithm based on terminal feedback |
| WO2013086423A1 (en) * | 2011-12-07 | 2013-06-13 | Visa International Service Association | Multi purpose device |
| CN102685059A (en) * | 2012-04-26 | 2012-09-19 | 重庆重邮信科通信技术有限公司 | Signal receiving method and device |
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| Publication number | Publication date |
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| WO2015154611A1 (en) | 2015-10-15 |
| CN105515718A (en) | 2016-04-20 |
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