CN102387588A - Method and device for scheduling downstream control information - Google Patents
Method and device for scheduling downstream control information Download PDFInfo
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- CN102387588A CN102387588A CN2010102693177A CN201010269317A CN102387588A CN 102387588 A CN102387588 A CN 102387588A CN 2010102693177 A CN2010102693177 A CN 2010102693177A CN 201010269317 A CN201010269317 A CN 201010269317A CN 102387588 A CN102387588 A CN 102387588A
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Abstract
The invention discloses a method and a device for scheduling downstream control information. The method includes that a base station configures a transmission mode for a wireless resource control layer of user equipment, wherein the transmission mode supports dynamic switchover of downstream single-user-multi-input multi-output (SU-MIMO) and multi-user-multi-input multi-output (MU-MIMO). The base station configures a second cell-radio network temporary identity (C-RNTI) special for dynamic switchover between a first C-RNTI and the downstream SU-MIMO and between the first C-RNTI and the downstream SU-MIMO for the wireless resource control layer of the user equipment. The base station adopts the first C-RNTI or the second C-RNTI to schedule the downstream control information sent to the user equipment in the transmission mode. The base station indicates resource scheduling types through a resource scheduling type identity position contained in the adopted C-RNTI and the downstream control information or through the adopted C-RNTI. By means of the method and the device, dynamic switchover between the SU-MIMO and the MU-MIMO of various resource scheduling types can be supported.
Description
Technical field
The present invention relates to the communications field, in particular to a kind of dispatching method and device of Downlink Control Information.
The advanced person's of 3G (Third Generation) Moblie partner program Long Term Evolution (abbreviating LTE-Advanced as) is supported the dynamic handoff functionality of single user's multiple-input and multiple-output (abbreviating SU-MIMO as) and multi-user's multiple-input and multiple-output (abbreviating MU-MIMO as).
Point out in the work report first draft of 3GPP wireless access network first working group (RAN WG1) in its 61Bis time meeting; SU-MIMO and MU-MIMO dynamically switch the method for using transparent transmission (that is, a user and do not know that the another one user uses the frequency resource identical with it) realization.
According to the 5.3.3.1.4A of 3GPP TS 36.212 V9.1.0 joint, the physical layer of base station (abbreviating eNB as) can give the Physical Downlink Control Channel (abbreviating PDCCH as) of the Downlink Control Information (abbreviating DCI 1D as) that subscriber equipment (being designated hereinafter simply as UE) launches the 1D form to dispatch this UE.In this case, the resource allocation type to this UE is localized virtual resource block (abbreviating LVRB as) or distributed virtual resource block (abbreviating DVRB as).UE is in MU-MIMO emission mode (non-transparent transmission type; That is, a user knows that the another one user uses the frequency resource identical with it).
According to the 5.3.3.1.5 of 3GPP TS 36.212 V9.1.0 joint, the PDCCH channel of Downlink Control Information (DCI 2) that the physical layer of eNB can be launched form 2 to UE is to dispatch this UE.Come indexed resource to distribute type through a dedicated bit among the DCI 2, if this bit is 0 promptly to represent type 0 resource allocation, otherwise the resource allocation of expression Class1.In this case, the resource allocation type to this UE is that (Type 0 for type 0 mode; Come to divide according to Resource Block group (abbreviating RBG as)) or the Class1 mode (Type 1; Divide according to single Resource Block (abbreviating RB as)).If launched 2 coded words for this UE, then this UE is in the SU-MIMO emission mode.
According to the 5.3.3.1.5B of 3GPP TS 36.212 V9.1.0 joint, the PDCCH channel of Downlink Control Information (DCI 2B) that the physical layer of eNB can be launched the 2B form to UE is to dispatch this UE.When system bandwidth surpasses 10 RB, come indexed resource to distribute type through a dedicated bit among the DCI 2B, if this bit is 0 promptly to represent type 0 resource allocation, otherwise the resource allocation of expression Class1.When system bandwidth during, be fixed as type 0 resource allocation smaller or equal to 10 RB.In this case, the resource allocation type to this UE is that (Type 0 for type 0 mode; Come to divide according to Resource Block group (RBG)) or the Class1 mode (Type 1; Divide according to single RB; , system bandwidth has only Type 0 method of salary distribution when being no more than 10 RB).If launched 2 coded words for this UE, then this UE is in the SU-MIMO emission mode.If respectively launched a coded word for simultaneously 2 UE, then these 2 UE are in MU-MIMO emission mode (transparent transmission type).
The inventor finds that Type 0 and Type 1 resource allocation type are only supported in the transparent transmission type SU-MIMO of 3GPP R9 version and the dynamic switching of MU-MIMO, does not support Type 2 resource allocation types (comprising that LVRB and DVRB distribute type).Thereby cause that the LTE-Advanced system can not support that the SU-MIMO of various resource allocation types and MU-MIMO dynamically switch, the interference between the user is bigger.
Summary of the invention
Main purpose of the present invention is to provide a kind of dispatching method and device of Downlink Control Information, can not support the SU-MIMO of various resource allocation types and the problem that MU-MIMO dynamically switches to solve above-mentioned LTE-Advanced system at least.
According to an aspect of the present invention, a kind of dispatching method of Downlink Control Information is provided, has comprised: the base station is the radio resource control layer configuration emission mode of subscriber equipment, and wherein, this emission mode is supported the dynamic switching of descending SU-MIMO and MU-MIMO; The base station is the 2nd C-RNTI of dynamic handover of dedicated of a C-RNTI and descending SU-MIMO and MU-MIMO of the radio resource control layer configure generic of subscriber equipment; The base station adopts one of a C-RNTI and the 2nd C-RNTI to send to the Downlink Control Information of subscriber equipment with the scheduling of above-mentioned emission mode, distributes type or the C-RNTI indexed resource distribution type through adopting through the resource allocation type identification position indexed resource that comprises in the C-RNTI that adopts and the Downlink Control Information.
According to a further aspect in the invention; A kind of dispatching device of Downlink Control Information is provided, has comprised: first configuration module, the radio resource control layer that is used to subscriber equipment disposes emission mode; Wherein, this emission mode is supported the dynamic switching of descending SU-MIMO and MU-MIMO; Second configuration module is used to the 2nd C-RNTI of dynamic handover of dedicated of a C-RNTI and descending SU-MIMO and MU-MIMO of the radio resource control layer configure generic of subscriber equipment; Scheduler module; Be used to adopt one of a C-RNTI and the 2nd C-RNTI to send to the Downlink Control Information of subscriber equipment, distribute type or C-RNTI indexed resource distribution type through adopting through the resource allocation type identification position indexed resource that comprises in the C-RNTI that adopts and the Downlink Control Information with above-mentioned emission mode scheduling.
Through the present invention; The base station is through configuration two wireless netting twine temporary marks in sub-district (abbreviating C-RNTI as); Combine resource allocation type identification position joint instructions resource allocation type with these two C-RNTI; Thereby the system that makes can support the resource allocation of various resource allocation types; Solve the LTE-Advanced system and can not support the SU-MIMO of various resource allocation types and the problem that MU-MIMO dynamically switches, thereby can under SU-MIMO and MU-MIMO pattern, reduce the interference between the user in the same sub-district, improved the capacity of system.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is the flow chart according to the dispatching method of the Downlink Control Information of the embodiment of the invention;
Fig. 2 is the flow chart according to the embodiment of the invention one;
Fig. 3 is the flow chart according to the embodiment of the invention two;
Fig. 4 is the flow chart according to the embodiment of the invention three;
Fig. 5 is the structural representation according to the dispatching device of the Downlink Control Information of the embodiment of the invention.
Embodiment
Hereinafter will and combine embodiment to specify the present invention with reference to accompanying drawing.Need to prove that under the situation of not conflicting, embodiment and the characteristic among the embodiment among the application can make up each other.
According to the embodiment of the invention a kind of dispatching method of Downlink Control Information is provided, Fig. 1 is the flow chart of this method, and is as shown in Figure 1, and this method mainly may further comprise the steps (step S102-step S106):
Step S102, the base station is the radio resource control layer configuration emission mode of subscriber equipment, wherein, this emission mode of base station configuration is supported the dynamic switching of descending SU-MIMO and MU-MIMO;
For example; The base station can be given a kind of emission mode of supporting that descending single user's multiple-input and multiple-output and multi-user's multiple-input and multiple-output dynamically switch of radio resource control layer configuration of subscriber equipment through its radio resource control layer, thereby makes subscriber equipment can know the emission mode that adopt the base station.
Step S104, the base station is the 2nd C-RNTI of dynamic handover of dedicated of a C-RNTI (perhaps also can be called conventional C-RNTI) and the descending SU-MIMO and the MU-MIMO of the radio resource control layer configure generic of subscriber equipment;
For example; The base station can dispose a Cell Radio Network Temporary Identifier/Identity, Cell-RNTI (being above-mentioned the 2nd C-RNTI) that is used for descending single user's multiple-input and multiple-output and dynamic 16 bits that switch of multi-user's multiple-input and multiple-output for the radio resource control layer of subscriber equipment through its radio resource control layer, also disposes the Cell Radio Network Temporary Identifier/Identity, Cell-RNTI (being an above-mentioned C-RNTI) of 16 bits of a routine in addition.
Step S106; The base station adopts one of an above-mentioned C-RNTI and the 2nd C-RNTI to send to the Downlink Control Information of subscriber equipment with the scheduling of above-mentioned emission mode, distributes type or the C-RNTI indexed resource distribution type through adopting through the resource allocation type identification position indexed resource that comprises in the C-RNTI that adopts and the Downlink Control Information.
Wherein, If system bandwidth is no more than the Physical Resource Block of predetermined quantity (for example, 10), then do not comprise resource allocation type identification position in the Downlink Control Information; The base station comes indexed resource to distribute type through its C-RNTI that adopts; For example, if an above-mentioned C-RNTI dispatching downlink control information is adopted in the base station, then indexed resource distribution type is a type 0; If above-mentioned the 2nd C-RNTI dispatching downlink control information is adopted in the base station, then indexed resource distribution type is the localized resource blocks distribution type of type 2.
When the system bandwidth a predetermined level is exceeded (for example; 10) Physical Resource Block; Then comprise resource allocation type identification position in the Downlink Control Information, then the resource allocation type identification position joint instructions resource allocation type of base station through comprising in its C-RNTI that adopts and the Downlink Control Information.For example, a C-RNTI dispatching downlink control information is adopted in the base station, if the resource allocation type identification position value that comprises in the Downlink Control Information is first predetermined value, then indexed resource distribution type is a type 0, otherwise it is Class1 that indexed resource distributes type; The 2nd C-RNTI dispatching downlink control information is adopted in the base station; The resource allocation type identification position value that comprises in the Downlink Control Information is first predetermined value; Then indexed resource distribution type is the localized resource blocks distribution type of type 2; Otherwise it is the distributed resource blocks distribution type of type 2 that indexed resource distributes type.
Resource allocation type identification position can take 1 bit, also can take a plurality of bits, and preferably, resource allocation type identification position can only take 1 bit.
For example, Downlink Control Information can adopt following form:
The resource allocation type head of (1) 1 bit (being above-mentioned resource allocation type identification position).If system bandwidth is no more than 10 Physical Resource Block and base station and dispatches with conventional Cell Radio Network Temporary Identifier/Identity, Cell-RNTI, then this bit does not exist and the resource allocation type is fixed as type 0 resource allocation.If system bandwidth is no more than 10 Physical Resource Block and base station and is used for the Cell Radio Network Temporary Identifier/Identity, Cell-RNTI that descending single user's multiple-input and multiple-output and multi-user's multiple-input and multiple-output dynamically switch and dispatches, the localized resource blocks that then this bit does not exist and the resource allocation type is fixed as type 2 is distributed type.If system bandwidth surpasses 10 Physical Resource Block, the base station uses conventional Cell Radio Network Temporary Identifier/Identity, Cell-RNTI to dispatch and this bit is " 0 ", then this bit representes that the resource allocation type is type 0 resource allocation.If system bandwidth surpasses 10 Physical Resource Block, the base station uses conventional Cell Radio Network Temporary Identifier/Identity, Cell-RNTI to dispatch and this bit is " 1 ", then this bit representes that the resource allocation type is the Class1 resource allocation.10 Physical Resource Block, base stations are used for descending single user's multiple-input and multiple-output and the dynamic Cell Radio Network Temporary Identifier/Identity, Cell-RNTI that switches of multi-user's multiple-input and multiple-output dispatches and this bit is " 0 " if system bandwidth surpasses, and this bit representes that the resource allocation type is the localized resource blocks distribution type of type 2 so.10 Physical Resource Block, base stations are used for descending single user's multiple-input and multiple-output and the dynamic Cell Radio Network Temporary Identifier/Identity, Cell-RNTI that switches of multi-user's multiple-input and multiple-output dispatches and this bit is " 1 " if system bandwidth surpasses, and this bit representes that the resource allocation type is the distributed resource blocks distribution type of type 2 so;
(2)
bit resource block assignments information; Wherein Ceil () rounds operation on being; For being the system bandwidth of unit representation with the Resource Block, P is a resource block number that the Resource Block group is comprised
.For resource allocation type 0, the bitmap that
bit is formed has just provided resource block assignments information.For the resource allocation Class1, Ceil (log
2(P)) bit is represented which group, the wherein log of Resource Block in the P group to this user equipment allocation
2() expression is got 2 to be the operation of the logarithm at the end, and it is to begin from the left side to distribute or begin to distribute from the right that the another one bit has indicated the Resource Block of giving this user equipment allocation, in addition
The bitmap that bit is formed has just provided resource block assignments information.For resource allocation type 2; A bit is represented antenna port information or is represented that orthogonal sequence information perhaps fixedly is filled to " 0 ";
bit is used for the resource allocation of type 2, and other
bit fixedly is filled to " 0 ";
(3) 2 bits are used for the power control command of ascending physical signal control channel;
(4) 2 bits are used for the descending allocation index of tdd systems.Frequency division duplex system does not have this 2 bit;
(5) be used for 3 bits or 4 bits of hybrid automatic repeat request process number.Wherein, tdd systems is used 4 bits, and frequency division duplex system is used 3 bits;
The transmission block exchange message of (6) bits;
(7) 5 bits are used for representing the Modulation and Coding Scheme of first transmission block;
(8) bits are used for representing the new data indication of first transmission block;
(9) 2 bits are used for representing the redundant version number of first transmission block;
(10) 5 bits are used for representing the Modulation and Coding Scheme of second transmission block;
(11) bits are used for representing the new data indication of second transmission block;
(12) 2 bits are used for representing the redundant version number of second transmission block; And
(13) precoding information of some bits.
In practical application, subscriber equipment after receiving the above-mentioned Downlink Control Information that sends the base station, the Downlink Control Information that an above-mentioned C-RNTI of above-mentioned base station configuration and the 2nd C-RNTI blind check receive.
For example, if subscriber equipment adopts the success of decoding of conventional Cell Radio Network Temporary Identifier/Identity, Cell-RNTI, and system bandwidth is no more than 10 Physical Resource Block, and then resource allocation type is type 0 resource allocation and does not have the resource allocation type bit.If subscriber equipment is no more than 10 Physical Resource Block with above-mentioned decode success and the system bandwidth of Cell Radio Network Temporary Identifier/Identity, Cell-RNTI that descending single user's multiple-input and multiple-output and multi-user's multiple-input and multiple-output dynamically switch that be used for, then subscriber equipment confirms that the resource allocation type is that the localized resource blocks of type 2 is distributed type and do not had the resource allocation type bit.
The success if the conventional Cell Radio Network Temporary Identifier/Identity, Cell-RNTI of subscriber equipment use is decoded, system bandwidth are above-mentioned first predetermined value (for example, " 0 ") above 10 Physical Resource Block and a resource allocation type bit, and then resource allocation type is type 0 resource allocation.The success if the conventional Cell Radio Network Temporary Identifier/Identity, Cell-RNTI of subscriber equipment use is decoded, system bandwidth are second predetermined value (for example, " 1 ") above 10 Physical Resource Block and a resource allocation type bit, and then resource allocation type is the Class1 resource allocation.
If subscriber equipment use Cell Radio Network Temporary Identifier/Identity, Cell-RNTI that descending single user's multiple-input and multiple-output and multi-user's multiple-input and multiple-output dynamically switch decode success, system bandwidth surpass 10 Physical Resource Block and a resource allocation type bit be above-mentioned first predetermined value (for example; " 0 "), then subscriber equipment confirms that the resource allocation type is the localized resource blocks distribution type of type 2.If subscriber equipment use above-mentioned be used for Cell Radio Network Temporary Identifier/Identity, Cell-RNTI that descending single user's multiple-input and multiple-output and multi-user's multiple-input and multiple-output dynamically switch decode success, system bandwidth above 10 Physical Resource Block and a resource allocation type bit be second predetermined value (for example; " 1 "), then resource allocation type is that the distributed resource blocks of type 2 is distributed type.
Then, subscriber equipment can go out other bits of Downlink Control Information according to the resource allocation type decoding, and receives the data of transmitting on the Physical Downlink Shared Channel according to the Downlink Control Information that above-mentioned blind check is come out.
The said method that provides through the embodiment of the invention; All resource block assignments types can be supported, thereby the interference between the user in the same sub-district can be under multi-user multiple input multiple output mode, reduced, reducing the interference between the user between different districts under single user's MIMO mode, obtaining higher system capacity and compatible fully with existing system.
Describe through specific embodiment below.
Embodiment one
Present embodiment is launched, is used DVRB, is emitted as example with antenna port 9 and describes with 20MHz system (100 RB), MU-MIMO mode.
Fig. 2 is the process chart of present embodiment, and is as shown in Figure 2, mainly may further comprise the steps:
Step S202, the radio resource control layer of base station are configured to a kind of emission mode that can support that descending single user's multiple-input and multiple-output and multi-user's multiple-input and multiple-output dynamically switch for the radio resource control layer of subscriber equipment;
Step S204; The radio resource control layer of base station disposes a Cell Radio Network Temporary Identifier/Identity, Cell-RNTI 0x0100 who is used for descending single user's multiple-input and multiple-output and dynamic 16 bits that switch of multi-user's multiple-input and multiple-output for the radio resource control layer of subscriber equipment, also disposes the Cell Radio Network Temporary Identifier/Identity, Cell-RNTI 0x0101 of 16 bits of a routine in addition;
Step S206, the Downlink Control Information of sign 0x0100 as form below the dispatching user facility used in the base station:
A resource allocation type bit is set to " 1 ";
25 bit resource block assignments information; A bit is set to " 0 " and is filled to " 0 " with expression antenna port 9,11 bits, and 13 bits are used for the resource allocation of DVRB;
2 bits are used for the power control command of ascending physical signal control channel;
2 bits are used for the descending allocation index of tdd systems; Frequency division duplex system does not have this 2 bit;
3 bits or 4 bits that are used for the hybrid automatic repeat request process number; Wherein, tdd systems is used 4 bits, and frequency division duplex system is used 3 bits;
The transmission block exchange message of a bit;
5 bits are used for representing the Modulation and Coding Scheme of first transmission block;
A bit is used for representing the new data indication of first transmission block;
2 bits are used for representing the redundant version number of first transmission block;
5 bits are used for representing the Modulation and Coding Scheme of second transmission block;
A bit is used for representing the new data indication of second transmission block;
2 bits are used for representing the redundant version number of second transmission block; And
The precoding information of some bits.
Step S208, subscriber equipment comes the Downlink Control Information of the above-mentioned form of blind check according to above-mentioned two Cell Radio Network Temporary Identifier/Identity, Cell-RNTIs, and is specific as follows;
Subscriber equipment tries to decode failure with sign 0x0101; Subscriber equipment tries to decode success with sign 0x0100.
Subscriber equipment uses and decodes a resource allocation type bit is " 1 ", in conjunction with sign 0x0101, thereby confirms that the resource allocation type is DVRB;
Subscriber equipment uses and decodes the antenna port information bit for " 0 ", in conjunction with the resource allocation type, thereby confirms that the transmitting antenna port is a port 9;
Subscriber equipment decodes other bits of Downlink Control Information.
Step S210, the above-mentioned Downlink Control Information that subscriber equipment comes out according to above-mentioned blind check receives the data of transmitting on the Physical Downlink Shared Channel.
Through present embodiment, can support DVRB resource block assignments type, can under multi-user multiple input multiple output mode, reduce the interference between the user in the same sub-district, obtain higher system capacity and compatible fully with existing system.
Embodiment two
Present embodiment is launched, uses Type 0 resource allocation type to be emitted as example with 10MHz system (50 RB), SU-MIMO mode to describe.
Fig. 3 is the process chart of present embodiment, and is as shown in Figure 3, mainly may further comprise the steps:
Step S302, the radio resource control layer of base station are configured to a kind of emission mode that can support that descending single user's multiple-input and multiple-output and multi-user's multiple-input and multiple-output dynamically switch for the radio resource control layer of subscriber equipment;
Step S304; The radio resource control layer of base station disposes a Cell Radio Network Temporary Identifier/Identity, Cell-RNTI 0x1233 who is exclusively used in descending single user's multiple-input and multiple-output and dynamic 16 bits that switch of multi-user's multiple-input and multiple-output for the radio resource control layer of subscriber equipment, also disposes the Cell Radio Network Temporary Identifier/Identity, Cell-RNTI 0x1235 of 16 bits of a routine in addition;
Step S306, the Downlink Control Information of sign 0x1235 form below dispatching user facility is used in the base station:
A resource allocation type bit is set to " 0 ";
17 bit resource block assignments information.Be used for the resource allocation of Type 0;
2 bits are used for the power control command of ascending physical signal control channel;
2 bits are used for the descending allocation index of tdd systems.Frequency division duplex system does not have this 2 bit;
3 bits or 4 bits that are used for the hybrid automatic repeat request process number.Wherein, tdd systems is used 4 bits, and frequency division duplex system is used 3 bits;
The transmission block exchange message of a bit;
5 bits are used for representing the Modulation and Coding Scheme of first transmission block;
A bit is used for representing the new data indication of first transmission block;
2 bits are used for representing the redundant version number of first transmission block;
5 bits are used for representing the Modulation and Coding Scheme of second transmission block;
A bit is used for representing the new data indication of second transmission block;
2 bits are used for representing the redundant version number of second transmission block;
The precoding information of some bits;
Step S308, subscriber equipment comes the Downlink Control Information of the above-mentioned form of blind check according to above-mentioned two Cell Radio Network Temporary Identifier/Identity, Cell-RNTIs, and is specific as follows;
Subscriber equipment tries to decode failure with sign 0x1233.Subscriber equipment tries to decode success with sign 0x1235.
Subscriber equipment uses and to decode a resource allocation type bit and be " 0 ", combines to identify 0x1235, the old friend road resource allocation type be Type 0.
Subscriber equipment decodes other bits of Downlink Control Information.
Step S310, the above-mentioned Downlink Control Information that subscriber equipment comes out according to above-mentioned blind check receive the data of Physical Downlink Shared Channel transmission.
Through present embodiment, can support Type 0 resource block assignments type, obtain higher system capacity and compatible fully with existing system.
Embodiment three
Present embodiment is launched, uses DVRB to be emitted as example with 5MHz system (25 RB), SU-MIMO mode to describe.
Fig. 4 is the process chart of present embodiment, and is as shown in Figure 4, mainly may further comprise the steps:
Step S402, the radio resource control layer of base station are configured to a kind of emission mode that can support that descending single user's multiple-input and multiple-output and multi-user's multiple-input and multiple-output dynamically switch for the radio resource control layer of subscriber equipment;
Step S404; The radio resource control layer of base station disposes a Cell Radio Network Temporary Identifier/Identity, Cell-RNTI 0x2345 who is used for descending single user's multiple-input and multiple-output and dynamic 16 bits that switch of multi-user's multiple-input and multiple-output for the radio resource control layer of subscriber equipment, also disposes the Cell Radio Network Temporary Identifier/Identity, Cell-RNTI 0x2346 of 16 bits of a routine in addition;
Step S406, the Downlink Control Information of sign 0x2345 form below dispatching user facility is used in the base station:
A resource allocation type bit is set to " 1 ";
13 bit resource block assignments information.One of them bit is set to " 0 ", and 3 bits are filled to " 0 ", and 9 bits are used for the resource branch of DVRB;
2 bits are used for the power control command of ascending physical signal control channel;
2 bits are used for the descending allocation index of tdd systems.Frequency division duplex system does not have this 2 bit.
3 bits or 4 bits that are used for the hybrid automatic repeat request process number.Wherein, tdd systems is used 4 bits, and frequency division duplex system is used 3 bits;
The transmission block exchange message of a bit;
5 bits are used for representing the Modulation and Coding Scheme of first transmission block;
A bit is used for representing the new data indication of first transmission block;
2 bits are used for representing the redundant version number of first transmission block;
5 bits are used for representing the Modulation and Coding Scheme of second transmission block;
A bit is used for representing the new data indication of second transmission block;
2 bits are used for representing the redundant version number of second transmission block; And
The precoding information of some bits.
Step S408, subscriber equipment comes the Downlink Control Information of the above-mentioned form of blind check according to above-mentioned two Cell Radio Network Temporary Identifier/Identity, Cell-RNTIs, and is specific as follows:
Subscriber equipment tries to decode failure with sign 0x2346.Subscriber equipment tries to decode success with sign 0x2345.
Subscriber equipment uses and to decode a resource allocation type bit and be " 1 ", combines to identify 0x2345, the old friend road resource allocation type be DVRB;
Subscriber equipment decodes other bits of Downlink Control Information.
Step S410, the above-mentioned Downlink Control Information that subscriber equipment comes out according to above-mentioned blind check receive the data of Physical Downlink Shared Channel transmission.
Through present embodiment, can support DVRB resource block assignments type, can reduce the interference between the user between different districts under single user's MIMO mode, obtain higher system capacity and compatible fully with existing system.
The embodiment of the invention also provides a kind of dispatching device of Downlink Control Information, and this device is positioned at the base station, the dispatching method of the above-mentioned Downlink Control Information that can be used to realize that the embodiment of the invention provides.
Fig. 5 is the structural representation according to the dispatching device of the Downlink Control Information of the embodiment of the invention, and is as shown in Figure 5, and this device comprises: first configuration module 10, second configuration module 20 and scheduler module 30.Wherein, first configuration module 10, the radio resource control layer that is used to subscriber equipment disposes emission mode, and wherein, this emission mode is supported the dynamic switching of descending SU-MIMO and MU-MIMO; Second configuration module 20 is used to the 2nd C-RNTI of dynamic handover of dedicated of a C-RNTI and descending SU-MIMO and MU-MIMO of the radio resource control layer configure generic of subscriber equipment; Scheduler module 30; Be used to adopt one of a C-RNTI and the 2nd C-RNTI to send to the Downlink Control Information of subscriber equipment, distribute type or C-RNTI indexed resource distribution type through adopting through the resource allocation type identification position indexed resource that comprises in the C-RNTI that adopts and the Downlink Control Information with above-mentioned emission mode scheduling.
Wherein, scheduler module 30 can adopt the mode indexed resource of foregoing description to distribute type, and Downlink Control Information also can adopt above-mentioned form.Concrete similar with above-mentioned description, repeat no more at this.
Through the said apparatus that the embodiment of the invention provides, can support all resource block assignments types.
From above description; Can find out; Through the technical scheme that the embodiment of the invention provides, can support all resource block assignments types, can under multi-user multiple input multiple output mode, reduce the interference between the user in the same sub-district, can reduce the interference between the user between different districts under single user's MIMO mode, obtain the higher system capacity.
Obviously, it is apparent to those skilled in the art that above-mentioned each module of the present invention or each step can realize with the general calculation device; They can concentrate on the single calculation element; Perhaps be distributed on the network that a plurality of calculation element forms, alternatively, they can be realized with the executable program code of calculation element; Thereby; Can they be stored in the storage device and carry out, and in some cases, can carry out step shown or that describe with the order that is different from here by calculation element; Perhaps they are made into each integrated circuit modules respectively, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The above is merely the preferred embodiments of the present invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. the dispatching method of a Downlink Control Information is characterized in that, comprising:
The base station is the radio resource control layer configuration emission mode of subscriber equipment, and wherein, said emission mode is supported the dynamic switching of descending single user's multiple-input and multiple-output SU-MIMO and multi-user's multiple-input and multiple-output MU-MIMO;
Said base station is the 2nd C-RNTI of dynamic handover of dedicated of the first Cell Radio Network Temporary Identifier/Identity, Cell-RNTI C-RNTI and descending SU-MIMO and MU-MIMO of the radio resource control layer configure generic of said subscriber equipment;
Said base station adopts one of a said C-RNTI and said the 2nd C-RNTI to send to the Downlink Control Information of said subscriber equipment with the scheduling of said emission mode, distributes type or the C-RNTI through employing to indicate said resource allocation type through the resource allocation type identification position indexed resource that comprises in the C-RNTI that adopts and the said Downlink Control Information.
2. method according to claim 1 is characterized in that, when system bandwidth is no more than the Physical Resource Block of predetermined quantity, does not comprise said resource allocation type identification position in the said Downlink Control Information; Type is distributed through the C-RNTI indexed resource that adopts in said base station.
3. method according to claim 2 is characterized in that, said base station distributes type to comprise through the C-RNTI indexed resource that adopts:
Said base station adopts a said C-RNTI to dispatch said Downlink Control Information, and indicating said resource allocation type is type 0; Perhaps
Said base station adopts said the 2nd C-RNTI to dispatch said Downlink Control Information, and the localized resource blocks that to indicate said resource allocation type be type 2 is distributed type.
4. method according to claim 1 is characterized in that, when the Physical Resource Block of system bandwidth a predetermined level is exceeded, comprises said resource allocation type identification position in the said Downlink Control Information; Said resource allocation type is indicated through the C-RNTI and the said resource allocation type identification position of adopting in said base station.
5. method according to claim 4 is characterized in that, said C-RNTI and said resource allocation type identification position through employing indicates said resource allocation type to comprise:
Said base station adopts a said C-RNTI to dispatch said Downlink Control Information, if said resource allocation type identification position value is first predetermined value, then indicating said resource allocation type is type 0, otherwise indicating said resource allocation type is Class1; Perhaps
Said base station adopts said the 2nd C-RNTI to dispatch said Downlink Control Information; If said resource allocation type identification position value is first predetermined value; The localized resource blocks that then to indicate said resource allocation type be type 2 is distributed type; Otherwise the distributed resource blocks that to indicate said resource allocation type be type 2 is distributed type.
6. method according to claim 5 is characterized in that, 1 bit of said resource allocation type identification bit stealing.
7. according to each described method in the claim 1 to 6; It is characterized in that; Also include resource block assignments information in the said Downlink Control Information; Said resource block assignments information takies
individual bit; Wherein, Ceil () is the operation that rounds up; For being the system bandwidth of unit representation with the Resource Block, P is a resource block number that the Resource Block group is comprised
.
Method according to claim 7 is characterized in that,
If said resource allocation type is a type 0, then said
individual bit is used to indicate said resource block assignments information;
If said resource allocation type is a Class1, and is then said
Ceil (log in the individual bit
2(P)) individual bit is used in reference to which group of Resource Block in the P group that is shown said user equipment allocation, and is said
It is to begin from the left side to distribute or begin to distribute from the right that another one bit in the individual bit is used in reference to the Resource Block that is shown said user equipment allocation, said
In the individual bit all the other
Individual bit is used to indicate said resource block assignments information;
If said resource allocation type is a type 2; A bit in then said
individual bit is used to indicate antenna port information or orthogonal sequence information or fixedly is filled to 0, and
the individual bit in said
individual bit is used to indicate said resource block assignments information.
Method according to claim 8; It is characterized in that; If said resource allocation type is a type 2, all the other
the individual bits in said
individual bit fixedly are filled to 0.
According to each described method in the claim 1 to 6, it is characterized in that after the said Downlink Control Information of said base station scheduling, said method also comprises:
Said subscriber equipment adopts a said C-RNTI and said the 2nd C-RNTI that said Downlink Control Information is decoded, and obtains said Downlink Control Information;
Said subscriber equipment receives the data of sending on the Physical Downlink Shared Channel according to said Downlink Control Information.
Method according to claim 10 is characterized in that, said subscriber equipment adopts a said C-RNTI and said the 2nd C-RNTI that said Downlink Control Information is decoded, and comprising:
Said subscriber equipment uses a said C-RNTI and said the 2nd C-RNTI that said Downlink Control Information is decoded,
If said subscriber equipment uses a said C-RNTI to decode successfully; And system bandwidth is no more than the Physical Resource Block of predetermined quantity; Then said subscriber equipment confirms that said resource allocation type is a type 0, and does not comprise said resource allocation type identification position in the said Downlink Control Information;
If said subscriber equipment is used in said the 2nd C-RNTI and decodes successfully; And system bandwidth is no more than the Physical Resource Block of said predetermined quantity; Then said subscriber equipment is confirmed the localized resource blocks distribution type that said resource allocation type is a type 2, and does not comprise said resource allocation type identification position in the said Downlink Control Information;
If said subscriber equipment uses a said C-RNTI to decode successfully; And system bandwidth surpasses the Physical Resource Block of said predetermined quantity; If the value that the said resource allocation type identification of said Downlink Control Information is is first predetermined value; Then said subscriber equipment confirms that said resource allocation type is a type 0, if the value of said resource allocation type identification position is second predetermined value, then said subscriber equipment confirms that said resource allocation type is a Class1;
If said subscriber equipment uses said the 2nd C-RNTI to decode successfully; And system bandwidth surpasses the Physical Resource Block of said predetermined quantity; If the value of said resource allocation type identification is said first predetermined value; The localized resource blocks that then said resource allocation type is a type 2 is distributed type, if value second predetermined value of said resource allocation type identification position, the distributed resource blocks that then said resource allocation type is a type 2 is distributed type.
A kind of dispatching device of Downlink Control Information is characterized in that, comprising:
First configuration module, the radio resource control layer that is used to subscriber equipment disposes emission mode, and wherein, said emission mode is supported the dynamic switching of descending SU-MIMO and MU-MIMO;
Second configuration module is used to the 2nd C-RNTI of dynamic handover of dedicated of a C-RNTI and descending SU-MIMO and MU-MIMO of the radio resource control layer configure generic of said subscriber equipment;
Scheduler module; Be used to adopt one of a said C-RNTI and said the 2nd C-RNTI to send to the Downlink Control Information of said subscriber equipment, distribute type or the C-RNTI through employing to indicate said resource allocation type through the resource allocation type identification position indexed resource that comprises in the C-RNTI that adopts and the said Downlink Control Information with said emission mode scheduling.
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| CN201010269317.7A CN102387588B (en) | 2010-08-27 | 2010-08-27 | The dispatching method of Downlink Control Information and device |
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| CN201010269317.7A CN102387588B (en) | 2010-08-27 | 2010-08-27 | The dispatching method of Downlink Control Information and device |
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| WO2014019550A1 (en) * | 2012-08-03 | 2014-02-06 | 中兴通讯股份有限公司 | Control information processing method and device |
| WO2017132955A1 (en) * | 2016-02-04 | 2017-08-10 | 华为技术有限公司 | Control information transmission method, base station, and terminal |
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| WO2019157674A1 (en) * | 2018-02-13 | 2019-08-22 | 华为技术有限公司 | Information indication method and related equipment |
| CN111543104A (en) * | 2020-02-10 | 2020-08-14 | 北京小米移动软件有限公司 | DCI transmission method, device, communication equipment and storage medium |
| WO2022021134A1 (en) * | 2020-07-29 | 2022-02-03 | Qualcomm Incorporated | Multicast grants to user equipment of different capabilities using a single downlink control information |
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| WO2014019550A1 (en) * | 2012-08-03 | 2014-02-06 | 中兴通讯股份有限公司 | Control information processing method and device |
| US9936483B2 (en) | 2012-08-03 | 2018-04-03 | Zte Corporation | Control information processing method and device |
| US11432232B2 (en) | 2016-02-04 | 2022-08-30 | Huawei Technologies Co., Ltd. | Control information transmission method, base station, and terminal |
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| WO2017133123A1 (en) * | 2016-02-04 | 2017-08-10 | 华为技术有限公司 | Control information transmission method, base station, and terminal |
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| CN111699735B (en) * | 2018-02-13 | 2023-12-15 | 华为技术有限公司 | Information indication method and related equipment |
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| CN111543104B (en) * | 2020-02-10 | 2023-10-03 | 北京小米移动软件有限公司 | DCI transmission method, DCI transmission device, communication equipment and storage medium |
| WO2022021134A1 (en) * | 2020-07-29 | 2022-02-03 | Qualcomm Incorporated | Multicast grants to user equipment of different capabilities using a single downlink control information |
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| CN102387588B (en) | 2016-01-20 |
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