CN103298117A - Indication and confirmation method and device for time-frequency resource - Google Patents
Indication and confirmation method and device for time-frequency resource Download PDFInfo
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- CN103298117A CN103298117A CN2012100507144A CN201210050714A CN103298117A CN 103298117 A CN103298117 A CN 103298117A CN 2012100507144 A CN2012100507144 A CN 2012100507144A CN 201210050714 A CN201210050714 A CN 201210050714A CN 103298117 A CN103298117 A CN 103298117A
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Abstract
The invention relates to the field of communication and discloses an indication and confirmation method and device for a time-frequency resource. The method includes the steps that a base station selects a target bandwidth for a terminal, allocates the time-frequency resource to the terminal according to the target bandwidth and carries out time-frequency resource indication in a downlink signal based on the target bandwidth; the terminal analyzes the received downlink signal based on the acquired target bandwidth according to a notice of the base station so as to confirm the time-frequency resource distributed by the base station side. Thus, under the condition that system bandwidths of all transmission points in a cooperation set possibly differ from one another, agreed indication of the time-frequency resource is achieved in CoMP transmission; therefore, UE can receive data effectively based on the acquired time-frequency resource, procedures of system processing in CoMP transmission are improved, and system performance is improved.
Description
Technical field
The present invention relates to the communications field, particularly a kind of indication of running time-frequency resource and confirmation method and device.
Background technology
LTE-A (Long Time Evolved-Advanced, long-term evolution upgrading) system adopts identical networking, when increasing substantially the availability of frequency spectrum, also can cause the subscriber signal decline of cell edge seriously to be subjected to the higher interference from other residential quarters simultaneously, if signal fadeout and interference problem are not handled, will have a strong impact on the experience of edge customer.CoMP (multipoint cooperative) technology not only can improve signal quality and also can reduce presence of intercell interference, thereby can increase substantially the data transmission performance of Cell Edge User by introducing information interaction and the joint transmission between many residential quarters.
Present multipoint cooperative transmission plan roughly can be divided into 3 classes: DPS (dynamic point selection, the dynamic transmission point selection), CBF (coordinated beamforming, the cooperative beam figuration) and JT (joint transmission, joint transmission), also can adopt the hybrid plan of above 3 class transmission plans, for example, DPS and CBF combine, the main point that transmits is determined by Dynamic Selection, and is realized cooperative beam figuration etc. by combined dispatching between the non-main transmission outer cooperation transmission point.
Adopt the CoMP technology, other one or more transmission points can participate in the transfer of data to a certain UE (user equipment, subscriber equipment) in service point (i.e. main transmission point) and/or the cooperation set.In order to guarantee that UE effectively receives data, need carry out the running time-frequency resource of transfer of data by signaled UE.
Have only service point to provide transfer of data for UE in the existing LTE-A system, carry out the running time-frequency resource of transfer of data by a kind of UE of informing in the following three kinds of resources distribution of DCI (downlink control information, descending control signaling) the employing type.
Resource is distributed type 0: with system bandwidth
Be divided into N
RBGIndividual RBG (resource block group, Resource Block group), each RBG comprises P RB (resource block, Resource Block),
Wherein
Expression is not less than the smallest positive integral of x, and N is set
RBGIndividual bit and N
RBGIndividual RBG is to being one-to-one relationship, by this N
RBGIndividual bit is indicated each RBG whether to distribute to UE and is used; Wherein, the value of P is relevant with system bandwidth, is specially:
Table 1
Resource is distributed Class1: with system bandwidth
Be divided into N
RBGIndividual RBG, each RBG comprise P RB,
And with N
RBGIndividual RBG is divided into P RBG set, adopts
Individual bit is indicated each RBG set whether to distribute to UE and is used, and arranges
In individual bit and the selected RBG set
Individual RB is one-to-one relationship, by this
Individual bit is indicated in the selected RBG set
Whether each RB among the individual RB distributes to UE is used; Wherein, the value of P is relevant with system bandwidth, and is specifically as shown in table 1.
Resource is distributed type 2: by the mapping relations of 1 bit indication VRB to PRB, adopt
Individual bit is indicated employed VRB.
For DCI form 1A, 1B or 1D, RIV (resource indication value, resource indicated value) provides the super beginning resource number RB of employed VRB
StartNumber L with employed VRB
CRBs, wherein, RIV is defined as:
If,
Then
Otherwise,
Wherein, L
CRBs〉=1 and be no more than
For DCI form 1C, RIV begins resource number corresponding to VRB
Number with employed VRB
Wherein,
With value and system bandwidth relevant, specifically as shown in table 2.
Table 2
As seen, the content of resource indication is relevant with system bandwidth with employed bit number average.
Under the prior art, when adopting the CoMP technology, other one or more transmission points can participate in the transfer of data to a certain UE in service point and/or the cooperation set.Because applied environment and manufacturer is different, the system bandwidth that each transmission point is supported when real work in the cooperation set may have nothing in common with each other, and the content of resource indication is relevant with system bandwidth, (namely CoMP transmission in) needs to determine that carrying out resource by the system bandwidth of which transmission point in the cooperation set indicates in this case, at present, do not formulate clear and definite method as yet.
Summary of the invention
The embodiment of the invention provides a kind of indication and confirmation method and device of running time-frequency resource, in order to realize the unified indication of running time-frequency resource in the CoMP transmission.
The concrete technical scheme that the embodiment of the invention provides is as follows:
A kind of indicating means of running time-frequency resource comprises:
Network side determines that carrying out running time-frequency resource at terminal indicates employed target bandwidth;
Employed running time-frequency resource when network side determines that terminal carried out transfer of data;
Network side is determined instruction content and the indicating mode of running time-frequency resource in the downlink signaling based on described target bandwidth;
Network side mails to terminal with described downlink signaling, makes terminal determine the running time-frequency resource that is assigned to according to described downlink signaling.
A kind of confirmation method of running time-frequency resource comprises:
Terminal determines that network side carries out running time-frequency resource and indicates employed target bandwidth;
Terminal receive that network side sends in order to carry out the downlink signaling of running time-frequency resource indication;
Terminal is determined the running time-frequency resource that network side distributes based on described target bandwidth according to described downlink signaling.
A kind of indicating device of running time-frequency resource comprises:
First processing unit is used for determining that carrying out running time-frequency resource at terminal indicates employed target bandwidth;
Second processing unit, employed running time-frequency resource when be used for determining that terminal carried out transfer of data;
The 3rd processing unit is used for based on described target bandwidth, determines instruction content and the indicating mode of running time-frequency resource in the downlink signaling;
Communication unit is used for described downlink signaling is mail to terminal, makes terminal determine the running time-frequency resource that is assigned to according to described downlink signaling.
A kind of affirmation device of running time-frequency resource comprises:
First control unit is used for determining that network side carries out running time-frequency resource and indicates employed target bandwidth;
Communication unit, be used for to receive that network side sends in order to carry out the downlink signaling of running time-frequency resource indication;
Second control unit is used for based on described target bandwidth, determines the running time-frequency resource that network side distributes according to described downlink signaling.
In the embodiment of the invention, the base station is at the selected target bandwidth of terminal, and be the terminal distribution running time-frequency resource according to this target bandwidth, and in downlink signaling, carry out running time-frequency resource based on this target bandwidth and indicate, terminal is then according to the notice of base station, resolve based on the downlink signaling that the target bandwidth butt joint that obtains is received, thereby determine the running time-frequency resource that base station side is distributed.Like this, just in the CoMP transmission, under the situation that the system bandwidth of each transmission point may have nothing in common with each other in the cooperation set, realized the unified indication of running time-frequency resource, thereby guarantee that UE can carry out active data based on the running time-frequency resource that obtains and receive, system handles flow process under the perfect CoMP transmission has improved systematic function.
Description of drawings
Fig. 1 is base station functions structural representation in the embodiment of the invention;
Fig. 2 is termination function structural representation in the embodiment of the invention;
Fig. 3 carries out running time-frequency resource indication flow chart for base station in the embodiment of the invention to terminal.
Fig. 4 carries out running time-frequency resource for terminal in the embodiment of the invention according to the base station indication and confirms flow chart.
Embodiment
In order to improve the agreement flow process, in the embodiment of the invention, formulated a kind of method of in the CoMP transmission, carrying out the running time-frequency resource indication and confirming.
Below in conjunction with accompanying drawing the preferred embodiment of the invention is elaborated.
In the embodiment of the invention, transmission point is defined as one group of identical transmit antenna of geographical position, with the different sectors of site corresponding to different transmission points.In the CoMP transmission, directly and/or indirectly participate in sending to UE the transmission point composition cooperation transmission set of data, wherein, send PBCH (physical broadcast channel to UE, Physical Broadcast Channel) transmission of signaling point is called service point, and other can be called non-service point.
In the embodiment of the invention, when network side carries out the running time-frequency resource indication to UE, can use DCI to indicate PDSCH (Physical Downlink Shared Channel to UE, the downlink physical shared channel) resource allocation conditions, also can be by high-level signaling to UE E-PDCCH (Enhanced Physical Downlink Control Channel, the enhancing Physical Downlink Control Channel) resource allocation conditions, below among each embodiment, be that example is introduced with the former all, but be adapted to the latter equally.
Consult shown in Figure 1ly, in the embodiment of the invention, the base station comprises communication unit 10, first processing unit 11, second processing unit 12 and the 3rd processing unit 13, wherein,
First processing unit 11 is used for determining that carrying out running time-frequency resource at UE indicates employed target bandwidth;
Second processing unit 12, employed running time-frequency resource when be used for determining that UE carried out transfer of data;
The 3rd processing unit 13 is used for determining instruction content and the indicating mode of running time-frequency resource among the DCI based on the target bandwidth of determining;
Communication unit 10 is used for above-mentioned DCI is mail to UE, makes UE determine the running time-frequency resource that is assigned to according to this DCI.
Consult shown in Figure 2ly, in the embodiment of the invention, UE comprises communication unit 20, first control unit 21 and second control unit 22, wherein,
First control unit 21 is used for determining that network side carries out running time-frequency resource and indicates employed target bandwidth;
Communication unit 20, be used for to receive that network side sends in order to carry out the DCI of running time-frequency resource indication;
Second control unit 22 is used for determining the running time-frequency resource that network side distributes based on the target bandwidth of determining according to the DCI that receives.
Based on technique scheme, to consult shown in Figure 3ly, in the embodiment of the invention, the base station is as follows to the detailed process that UE carries out running time-frequency resource indication:
Step 300: the base station determines that carrying out running time-frequency resource at UE indicates employed target bandwidth.
Among this embodiment, the base station can represent in the cooperation transmission set any one or a plurality of transmission point, as long as can carry out the running time-frequency resource indication to UE.When execution in step 300, the base station can be defined as the target bandwidth with the system bandwidth of a transmission point in the cooperation transmission set of UE correspondence; Wherein, the transmission point that the base station is chosen can be service point, also can be any one the transmission point in the non-service point.After above-mentioned target bandwidth is determined in the base station, can adopt high-level signaling or DCI with target bandwidth notice UE.
For example, the base station is by high-level signaling or DCI during with target bandwidth notice UE, can be earlier set information notice UE by 1 bit whether adopt the system bandwidth of service point distribute as resource and the resource indication in the target bandwidth of use; If, then need not to send again the system bandwidth of service point, otherwise, more concrete target bandwidth value is notified to UE.
Further, the base station also can be arranged with UE, and the target bandwidth that acquiescence is used is the system bandwidth of service point in the cooperation transmission set, and at this moment, the base station can be to UE notification target bandwidth, because UE also can adopt same way as to confirm the target bandwidth.
On the other hand, when the base station to UE notification target bandwidth, but in the time of can't determining that UE receives the target bandwidth, system normally moves for assurance, the base station can be directly be defined as the target bandwidth with the system bandwidth of the service point of UE correspondence and (whether the system bandwidth of service point be confirmed as the target bandwidth no matter, here all need to reaffirm), and in follow-up flow process, carry out the running time-frequency resource indication based on this target bandwidth to UE.
Step 310: the base station is determined to carry out the employed running time-frequency resource of transfer of data at UE.
Particularly, the channel condition information that the base station can report according to UE, the service conditions of UE and offered load etc., determine the data transmission scheme (which the transmission point in namely gathering by cooperation transmission is to UE transmission data) at the UE use, and under this data transmission scheme employed running time-frequency resource, also claim PDSCH (Physical Downlink Shared Channel, downlink physical shared channel) resource.
Step 320: the base station is based on above-mentioned target bandwidth, determines the instruction content of running time-frequency resource among the DCI and indicating mode (as, bit length).
In the present embodiment, the instruction content of running time-frequency resource and indicating mode in the CoMP that adopts under a certain DCI form transmission (as, bit length) can not have influence on the use of (as, bit length) of other DCI forms; For example, agreement adopts DCI format 2C form to support the CoMP transmission, when adopting DCI format2C form to carry out the running time-frequency resource indication, adopt said method to determine instruction content and the indicating mode of target bandwidth and corresponding running time-frequency resource, its bit length that adopts can not influence the bit length that adopts under the forms such as DCI format 1A, DCI format 1B.Wherein, the bit length of other DCI forms can still be determined by the system bandwidth of UE corresponding with service point.
Particularly, when execution in step 320, the base station can be adopted but is not limited to following three kinds of implementations:
First kind of mode is: each RBG of dividing in the system is determined in the base station according to the target bandwidth, and the bit length that is used for carrying time-frequency resource allocating information among the DCI, and the RBG that comprises based on the running time-frequency resource of distributing to UE, whether the bit by respective length in DCI indicates each RBG to allow UE to use to UE respectively.
For example, the base station adopts resource to distribute the distribution condition of type 0 indication running time-frequency resource, and is specific as follows:
The base station is with the target bandwidth of using in resource distribution and the resource indication
Be divided into N
RBGIndividual RBG, each RBG comprise P Resource Block (resource block, RB),
Wherein,
Expression is not less than the smallest positive integral of x, and the value of P is relevant with the target bandwidth, and is specifically as shown in table 3:
Table 3
N is adopted in the base station in DCI
RBGIndividual bit is indicated each RBG whether to distribute to UE and is used this N
RBGIndividual bit and N
RBGIndividual RBG is one-to-one relationship, and namely the value of each bit represents all whether corresponding RBG distributes to UE, as, " 1 " expression distributes, and " 0 " expression is unallocated.
The second way is: the base station determines that according to the target bandwidth each RBG that divides in the system gathers, and the bit length that is used for carrying time-frequency resource allocating information among the DCI, and the RB of the RBG correspondence that comprises based on the running time-frequency resource of distributing to UE, whether the bit by respective length in DCI indicates each RBG set to allow UE to use to UE respectively, and whether each RB allows UE to use in the RBG set that allows to use.
For example, the base station adopts resource to distribute the distribution condition of Class1 indication running time-frequency resource, and is specific as follows:
The base station is with the target bandwidth of using in resource distribution and the resource indication
Be divided into N
RBGIndividual RBG, each RBG comprise P RB,
With N
RBGIndividual RBG is divided into P RBG set, and wherein, the value of P is relevant with the target bandwidth, and is specifically as shown in table 3.
Adopt in DCI the base station
Whether individual bit indicates each RBG set to allow UE to use, and adopts
Whether each RB allowed UE to use during the RBG that individual bit indication allows UE to use gathered, this
During individual bit is gathered with the RBG that allows UE to use
Individual RB is one-to-one relationship, and namely the value of each bit represents all whether corresponding RB distributes to UE, as, " 1 " expression distributes, and " 0 " expression is unallocated.
The third mode is: the base station indicates VRB to the mapping relations of PBR in DCI, and the bit length of determining to be used among the DCI carrying time-frequency resource allocating information according to the target bandwidth, and based target bandwidth and the position of distributing to the running time-frequency resource of UE, initial resource number and the VRB number of in DCI, indicating VRB by the bit of respective length to UE.
For example, the base station adopts resource to distribute the distribution condition of type 2 indication running time-frequency resources, and is specific as follows:
The base station indicates VRB to the mapping relations of PRB by 1 bit in DCI, and adopts in DCI
Individual bit indication allows initial resource number and the number of the VRB of UE use, wherein,
Be the target bandwidth,
If DCI format 1A, DCI format1B or DCI format 1D are used for supporting the CoMP transmission, for DCI format 1A, DCI format1B or DCI format 1D, the base station can be above-mentioned
In the individual bit, allow the initial resource number RB of the VRB of UE use by the RIV indication
StartWith number L
CRBs, wherein, RIV is defined as:
If,
Then
Otherwise,
Wherein, L
CRBs〉=1 and be no more than
If DCI format 1C is used for supporting the CoMP transmission, for DCI format 1C, the base station can be above-mentioned
In the individual bit, allow the initial resource number RB of the VRB of UE use by the RIV indication
StartWith number L
CRBs, wherein, the initial resource number of the VRB of RIV correspondence
And the number of the VRB of RIV correspondence
Wherein,
With value relevant with the target bandwidth, specifically as shown in table 4:
Table 4
In the subsequent embodiment, RIV all confirms in the manner described above, will repeat no more.
Step 330: the downlink signaling that above-mentioned DCI will be carried in the base station mails to UE, makes UE determine the running time-frequency resource that is assigned to according to this DCI.
Based on above-described embodiment, to consult shown in Figure 4ly, corresponding, in the embodiment of the invention, it is as follows that UE carries out the detailed process that running time-frequency resource confirms according to the base station indication:
Step 400:UE determines that the base station carries out running time-frequency resource and indicate employed target bandwidth.
Particularly, UE can determine that network side carries out running time-frequency resource and indicates employed target bandwidth according to the notice of base station, the system bandwidth of a transmission point in the cooperation transmission set that this target bandwidth can be the UE correspondence, wherein, this transmission point can be service point, also can be any one the transmission point in the non-service point.Preferable, UE can obtain above-mentioned target bandwidth according to high-level signaling or the DCI that the base station sends, for example, UE is when obtaining the target bandwidth by high-level signaling or DCI, and the set information of 1 bit that can be earlier sends by the base station judges whether to adopt the system bandwidth of service point as the target bandwidth; If, then need not to receive again the system bandwidth that the base station sends, otherwise, the base station received by the concrete value of the target bandwidth of high-level signaling or DCI transmission.
Further, UE also can arrange with the base station, and the target bandwidth that acquiescence is used is the system bandwidth of service point in the cooperation transmission set, and at this moment, UE can not receive the notice of base station, because the base station also can adopt same way as to confirm the target bandwidth.
On the other hand, when UE with base station agreement, but when also not receiving the base station advise of same, system normally moves for assurance, UE can be defined as the target bandwidth with the system bandwidth of the service point of correspondence, and in follow-up flow process based on the distribution condition of this target bandwidth confirm running time-frequency resource.
Step 410:UE receive that the base station sends in order to carry out the DCI of running time-frequency resource indication.
Step 420:UE determines the running time-frequency resource of base station assigns based on above-mentioned target bandwidth according to the DCI that receives.
Particularly, corresponding with step 320, when execution in step 420, UE can adopt but be not limited to following three kinds of implementations:
First kind of mode is: UE determines each RBG of dividing in the system according to the target bandwidth, and the bit length that is used for carrying time-frequency resource allocating information among the DCI that receives, and determines respectively by the bit of respective length whether each RBG allows to use.
For example: UE distributes type 0 to determine the distribution condition of running time-frequency resource according to resource, and is specific as follows:
UE is with the target bandwidth
Be divided into N
RBGIndividual RBG, each RBG comprise P RB,
Wherein,
Expression is not less than the smallest positive integral of x, and the value of P is relevant with the target bandwidth, and is specifically as shown in table 3.
UE passes through N in the DCI that receives
RBGIndividual bit determines whether each RBG can use this N
RBGIndividual bit and N
RBGIndividual RBG is one-to-one relationship, and namely the value of each bit represents all whether corresponding RBG distributes to UE, as, " 1 " expression distributes, and " 0 " expression is unallocated.On the other hand, N
RBGIndividual bit reading the position and can indicate UE by the base station in DCI perhaps, by base station and UE agreement, perhaps, carried out according to the agreement regulation, do not repeat them here.
The second way is: UE determines that according to the target bandwidth each RBG that divides in the system gathers, and the bit length that is used for carrying time-frequency resource allocating information among the DCI that receives, and the bit by respective length determines respectively whether each RBG set allows to use, and whether each RB allows to use in the RGB set that allows to use.
For example, UE distributes Class1 to determine the distribution condition of running time-frequency resource according to resource, and is specific as follows:
UE is with the target bandwidth
Be divided into N
RBGIndividual RBG, each RBG comprise P RB,
With N
RBGIndividual RBG is divided into P RBG set, and wherein, the value of P is relevant with the target bandwidth, and is specifically as shown in table 3.
UE passes through in DCI
Individual bit determines whether each RBG set allows to use, and passes through
Whether each RB allows to use in the RBG set that individual bit is determined to allow to use, this
During individual bit is gathered with the RBG that allows UE to use
Individual RB is one-to-one relationship, and namely the value of each bit represents all whether corresponding RB distributes to UE, as, " 1 " expression distributes, and " 0 " expression is unallocated.On the other hand,
Individual bit and
Individual bit reading the position and can indicate UE by the base station in DCI perhaps, by base station and UE agreement, perhaps, carried out according to the agreement regulation, do not repeat them here.
The third mode is: UE determines that according to the DCI that receives VRB is to the mapping relations of PBR, and determine among the DCI to be used for the bit length of carrying time-frequency resource allocating information according to the target bandwidth, and determine initial resource number and the VRB number of VRB by the bit of respective length.
For example, UE distributes type 2 to determine the distribution condition of running time-frequency resource according to resource, and is specific as follows:
UE determines VRB to the mapping relations of PRB according to the indication information of 1 bit that DCI carries, and passes through in DCI
Individual bit is determined initial resource number and the number of the VRB that permission is used, wherein,
Be the target bandwidth,
If DCI format 1A, DCI format1B, DCI format 1C or DCI format 1D are used for supporting the CoMP transmission, for DCI format 1A, DCI format1B, DCI format 1D or DCI format 1C, UE all can be by above-mentioned
The RIV that individual bit carries determines the initial resource number RB of the VRB that permission UE uses
StartWith number L
CRBs, wherein, the definition of RIV is identical with base station side, does not repeat them here.
In sum, in the embodiment of the invention, the base station is at the selected target bandwidth of terminal, and be the terminal distribution running time-frequency resource according to this target bandwidth, and in downlink signaling, carry out running time-frequency resource based on this target bandwidth and indicate, terminal then according to the notice of base station, is resolved based on the downlink signaling that the target bandwidth butt joint that obtains is received, thereby is determined the running time-frequency resource that base station side is distributed.Like this, just in the CoMP transmission, under the situation that the system bandwidth of each transmission point may have nothing in common with each other in the cooperation set, realized the unified indication of running time-frequency resource, thereby guarantee that UE can carry out active data based on the running time-frequency resource that obtains and receive, system handles flow process under the perfect CoMP transmission has improved systematic function.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (24)
1. the indicating means of a running time-frequency resource is characterized in that, comprising:
Network side determines that carrying out running time-frequency resource at terminal indicates employed target bandwidth;
Employed running time-frequency resource when network side determines that terminal carried out transfer of data;
Network side is determined instruction content and the indicating mode of running time-frequency resource in the downlink signaling based on described target bandwidth;
Network side mails to terminal with described downlink signaling, makes terminal determine the running time-frequency resource that is assigned to according to described downlink signaling.
2. the method for claim 1 is characterized in that, network side is determined to carry out the target bandwidth that the running time-frequency resource indication is used at UE, comprising:
Network side is defined as the target bandwidth with the system bandwidth of a transmission point in the cooperation transmission set of terminal correspondence, and described transmission point is service point, perhaps, is any one the transmission point in the non-service point;
Perhaps
Network side according to the terminal stipulated form, the system bandwidth of giving tacit consent to the service point in the cooperation transmission set of described terminal correspondence is the target bandwidth.
3. method as claimed in claim 2 is characterized in that, after the system bandwidth of a transmission point during network side is gathered the cooperation transmission of terminal correspondence is defined as the target bandwidth, adopts high-level signaling or Downlink Control Information DCI with described target bandwidth notice terminal.
4. method as claimed in claim 3 is characterized in that, network side adopts high-level signaling or DCI with described target bandwidth notice terminal, comprising:
Whether the set information notice terminal by 1 bit adopts the system bandwidth of service point as described target bandwidth; If, end notification then, otherwise, with the concrete value notice terminal of target bandwidth.
5. method as claimed in claim 4, it is characterized in that, after network side adopts high-level signaling or DCI with described target bandwidth notice terminal, if fail to determine whether terminal receives described target bandwidth, then the system bandwidth with the service point in the cooperation transmission set of described terminal correspondence is defined as the target bandwidth.
6. as each described method of claim 1-5, it is characterized in that network side is determined instruction content and the indicating mode of running time-frequency resource in the downlink signaling based on described target bandwidth, comprising:
Network side is determined each Resource Block group RBG of dividing in the system according to described target bandwidth, and the bit length that is used for carrying time-frequency resource allocating information, and the RBG that comprises based on the running time-frequency resource of distributing to terminal, whether the bit by respective length in downlink signaling indicates each RBG to allow terminal to use to terminal respectively;
Perhaps
Network side determines that according to described target bandwidth each RBG and each RBG that divide in the system gather, and the bit length that is used for carrying time-frequency resource allocating information, and the Resource Block RB of the RBG correspondence that comprises based on the running time-frequency resource of distributing to terminal, whether the bit by respective length in downlink signaling indicates each RBG set to allow to use to terminal respectively, and whether each RB allows terminal to use in the RBG set that allows to use;
Perhaps
Network side indication virtual resource blocks VRB is to the mapping relations of Physical Resource Block PBR, and the bit length of determining to be used in the downlink signaling carrying time-frequency resource allocating information according to described target bandwidth, and based on described target bandwidth and the position of distributing to the running time-frequency resource of terminal, in downlink signaling, indicate initial resource number and the VRB number of VRB to terminal by the bit of respective length.
7. the confirmation method of a running time-frequency resource is characterized in that, comprising:
Terminal determines that network side carries out running time-frequency resource and indicates employed target bandwidth;
Terminal receive that network side sends in order to carry out the downlink signaling of running time-frequency resource indication;
Terminal is determined the running time-frequency resource that network side distributes based on described target bandwidth according to described downlink signaling.
8. method as claimed in claim 7 is characterized in that, terminal determines that network side carries out running time-frequency resource and indicates employed target bandwidth, comprising:
The system bandwidth of a transmission point during terminal is gathered the cooperation transmission of this terminal correspondence according to the network side notice is defined as the target bandwidth, and a described transmission point is service point, perhaps, is any one the transmission point in the non-service point;
Perhaps,
Terminal according to the network side stipulated form, the system bandwidth of giving tacit consent to the service point in the cooperation transmission set of this terminal correspondence is the target bandwidth.
9. method as claimed in claim 8 is characterized in that, terminal is defined as the target bandwidth according to the network side notice with a system bandwidth of transmitting point in the cooperation transmission set of this terminal correspondence, comprising:
Terminal is defined as the target bandwidth according to high-level signaling or the Downlink Control Information DCI that network side sends with a system bandwidth of transmitting point in the cooperation transmission set of this device correspondence.
10. method as claimed in claim 9 is characterized in that, terminal is defined as the target bandwidth according to high-level signaling or the DCI that network side sends with a system bandwidth of transmitting point in the cooperation transmission set of this terminal correspondence, comprising:
Terminal judges whether to adopt the system bandwidth of service point as the target bandwidth by the set information of 1 bit that the base station sends; If, then need not to receive again the system bandwidth that the base station sends, otherwise, the base station received by the concrete value of the target bandwidth of high-level signaling or DCI transmission.
11. method as claimed in claim 8 is characterized in that, arranges with network side as if terminal, and does not receive the notice of network side, then terminal is defined as the target bandwidth with the system bandwidth of the service point in the cooperation transmission set of this terminal correspondence.
12., it is characterized in that terminal is determined the running time-frequency resource that network side distributes based on described target bandwidth according to described downlink signaling, comprising as each described method of claim 7-11:
Terminal is determined each Resource Block group RBG of dividing in the system according to the target bandwidth, and the bit length that is used for carrying time-frequency resource allocating information in the described downlink signaling, and determines respectively by the bit of respective length whether each RBG allows to use;
Perhaps,
Terminal determines that according to the target bandwidth each RBG and each RBG that divide in the system gather, and the bit length that is used for carrying time-frequency resource allocating information in the described downlink signaling, and determine by the bit of respective length whether each RBG set allows to use, and whether each RB allows to use in the RBG set that allows to use;
Perhaps,
Terminal determines that according to described downlink signaling VRB is to the mapping relations of PBR, and determine in the downlink signaling to be used for the bit length of carrying time-frequency resource allocating information according to the target bandwidth, and determine initial resource number and the VRB number of VRB by the bit of respective length.
13. the indicating device of a running time-frequency resource is characterized in that, comprising:
First processing unit is used for determining that carrying out running time-frequency resource at terminal indicates employed target bandwidth;
Second processing unit, employed running time-frequency resource when be used for determining that terminal carried out transfer of data;
The 3rd processing unit is used for based on described target bandwidth, determines instruction content and the indicating mode of running time-frequency resource in the downlink signaling;
Communication unit is used for described downlink signaling is mail to terminal, makes terminal determine the running time-frequency resource that is assigned to according to described downlink signaling.
14. device as claimed in claim 13 is characterized in that, described first processing unit determines that carrying out running time-frequency resource at terminal indicates employed target bandwidth, comprising:
First processing unit is defined as the target bandwidth with the system bandwidth of a transmission point in the cooperation transmission set of terminal correspondence, and described transmission point is service point, perhaps, is any one the transmission point in the non-service point.
Perhaps
First processing unit according to the terminal stipulated form, the system bandwidth of giving tacit consent to the service point in the cooperation transmission set of described terminal correspondence is the target bandwidth.
15. device as claimed in claim 14, it is characterized in that, after the system bandwidth of a transmission point during described first processing unit is gathered the cooperation transmission of terminal correspondence was defined as the target bandwidth, described communication unit adopted high-level signaling or Downlink Control Information DCI with described target bandwidth notice terminal.
16. device as claimed in claim 15 is characterized in that, described communication unit adopts high-level signaling or DCI with described target bandwidth notice terminal, comprising:
Whether described communication unit adopts the system bandwidth of service point as described target bandwidth by the set information notice terminal of 1 bit; If, end notification then, otherwise, with the concrete value notice terminal of target bandwidth.
17. device as claimed in claim 16, it is characterized in that, after described communication unit adopts high-level signaling or DCI with described target bandwidth notice terminal, if fail to determine whether terminal receives described target bandwidth, then described first processing unit is defined as the target bandwidth with the system bandwidth of the service point in the cooperation transmission set of described terminal correspondence.
18., it is characterized in that described the 3rd processing unit is determined instruction content and the indicating mode of running time-frequency resource in the downlink signaling based on described target bandwidth, comprising as each described device of claim 13-17:
Described the 3rd processing unit is determined each Resource Block group RBG of dividing in the system according to described target bandwidth, and the bit length that is used for carrying time-frequency resource allocating information in the downlink signaling, and the RBG that comprises based on the running time-frequency resource of distributing to terminal, whether the bit by respective length in downlink signaling indicates each RBG to allow terminal to use to terminal respectively;
Perhaps
Described the 3rd processing unit determines that according to described target bandwidth each RBG that divides in the system gathers, and the bit length that is used for carrying time-frequency resource allocating information in the downlink signaling, and the Resource Block RB of the RBG correspondence that comprises based on the running time-frequency resource of distributing to terminal, whether the bit by respective length in downlink signaling indicates each RBG set to allow to use to terminal respectively, and whether each RB allows terminal to use in the RBG set that allows to use;
Perhaps
Described the 3rd processing unit indicates virtual resource blocks VRB to the mapping relations of Physical Resource Block PBR in downlink signaling, and the bit length of determining to be used in the downlink signaling carrying time-frequency resource allocating information according to described target bandwidth, and based on described target bandwidth and the position of distributing to the running time-frequency resource of terminal, in downlink signaling, indicate initial resource number and the VRB number of VRB to terminal by the bit of respective length.
19. the affirmation device of a running time-frequency resource is characterized in that, comprising:
First control unit is used for determining that network side carries out running time-frequency resource and indicates employed target bandwidth;
Communication unit, be used for to receive that network side sends in order to carry out the downlink signaling of running time-frequency resource indication;
Second control unit is used for based on described target bandwidth, determines the running time-frequency resource that network side distributes according to described downlink signaling.
20. device as claimed in claim 19 is characterized in that, described first control unit determines that network side carries out running time-frequency resource and indicates employed target bandwidth, comprising:
Described first control unit is defined as the target bandwidth according to the system bandwidth of a transmission point in the cooperation transmission set that this device is corresponding of network side notice, and described transmission point is service point, perhaps, is any one the transmission point in the non-service point;
Perhaps,
Described first control unit according to the network side stipulated form, the system bandwidth of giving tacit consent to the service point in the corresponding cooperation transmission set of this device is the target bandwidth.
21. device as claimed in claim 20 is characterized in that, described first control unit is defined as the target bandwidth according to the system bandwidth of a transmission point in the cooperation transmission set that this device is corresponding of network side notice, comprising:
Described first control unit is defined as the target bandwidth according to high-level signaling or the Downlink Control Information DCI that network side sends with a system bandwidth of transmitting point in the cooperation transmission set of this device correspondence.
22. device as claimed in claim 21 is characterized in that, described first control unit is defined as the target bandwidth according to high-level signaling or the DCI that network side sends with a system bandwidth of transmitting point in the cooperation transmission set of this device correspondence, comprising:
Described first control unit judges whether to adopt the system bandwidth of service point as the target bandwidth by the set information of 1 bit that the base station sends; If, then need not to receive again the system bandwidth that the base station sends, otherwise, the base station received by the concrete value of the target bandwidth of high-level signaling or DCI transmission.
23. device as claimed in claim 24 is characterized in that, arranges with network side as if described first control unit, and does not receive the notice of network side, then the system bandwidth with the service point in the cooperation transmission set of this device correspondence is defined as the target bandwidth.
24., it is characterized in that described second control unit is determined the running time-frequency resource that network side distributes based on described target bandwidth according to described downlink signaling, comprising as each described device of claim 19-23:
Described second control unit is determined each RBG of dividing in the system according to the target bandwidth, and the bit length that is used for carrying time-frequency resource allocating information in the described downlink signaling, and determines respectively by the bit of respective length whether each RBG allows to use;
Perhaps,
Described second control unit determines that according to the target bandwidth each RBG that divides in the system gathers, and the bit length that is used for carrying time-frequency resource allocating information in the described downlink signaling, and determine by the bit of respective length whether each RBG set allows to use, and whether each RB allows to use in the RBG set that allows to use;
Perhaps,
Described second control unit determines that according to described downlink signaling VRB is to the mapping relations of PBR, and determine in the downlink signaling to be used for the bit length of carrying time-frequency resource allocating information according to the target bandwidth, and determine initial resource number and the VRB number of VRB by the bit of respective length.
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