CN103298118B - A kind of instruction of running time-frequency resource and confirmation method and device - Google Patents
A kind of instruction of running time-frequency resource and confirmation method and device Download PDFInfo
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- CN103298118B CN103298118B CN201210050727.1A CN201210050727A CN103298118B CN 103298118 B CN103298118 B CN 103298118B CN 201210050727 A CN201210050727 A CN 201210050727A CN 103298118 B CN103298118 B CN 103298118B
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Abstract
The present invention relates to the communications field, disclose a kind of instruction of running time-frequency resource and confirmation method and device.The method is: base station notifies the system bandwidth of at least two transfer points to UE, therefrom select the system bandwidth of at least one transfer point as target bandwidth again, and be that UE distributes running time-frequency resource according to this target bandwidth, and in downlink signaling, carry out running time-frequency resource instruction based on this target bandwidth, and after UE reception downlink signaling, adopt the mode of blind check from the system bandwidth of at least two transfer points obtained, pick out the target bandwidth of base station use, and based on the running time-frequency resource that the target bandwidth determination base station side obtained is distributed.Like this, just in CoMP transmission, in cooperation set, the system bandwidth possibility of each transfer point is different, achieve the unified instruction of running time-frequency resource, thus ensure that UE can carry out effective data receiver based on the running time-frequency resource obtained, system handling process under perfect CoMP transmission, improves systematic function.
Description
Technical field
The present invention relates to the communications field, particularly a kind of instruction of running time-frequency resource and confirmation method and device.
Background technology
LTE-A (LongTimeEvolved-Advanced, long-term evolution upgrading) system employing identical networking, while increasing substantially the availability of frequency spectrum, also the subscriber signal of cell edge can be caused to decline and to be seriously subject to the higher interference from other communities simultaneously, if do not processed signal fadeout and interference problem, the experience of edge customer will be had a strong impact on.CoMP (multipoint cooperative) technology, by the information interaction between introducing multiple cell and joint transmission, not only can improve signal quality and also can reduce presence of intercell interference, thus can increase substantially the data transmission performance of Cell Edge User.
Current coordinated multipoint transmission scheme roughly can be divided into 3 classes: DPS (dynamicpointselection, dynamic transmission point selection), CBF (coordinatedbeamforming, cooperative beam figuration) and JT (jointtransmission, joint transmission), also the hybrid plan of above 3 class transmission plans can be adopted, such as, DPS and CBF combines, main transfer point is determined by Dynamic Selection, and realizes cooperative beam figuration etc. by combined dispatching between the cooperation transmission point outside non-master transfer point.
Adopt CoMP technology, service point (i.e. main transfer point) and/or cooperation set other one or more transfer points interior can participate in the transfer of data to a certain UE (userequipment, subscriber equipment).In order to ensure that UE effectively receives data, need the running time-frequency resource being carried out transfer of data by signaled UE.
Only have service point can provide transfer of data for UE in existing lte-a system, a kind of UE of informing in following three kinds of resource allocation type is adopted to carry out the running time-frequency resource of transfer of data by DCI (downlinkcontrolinformation, descending control signaling).
Resource allocation type 0: by system bandwidth
be divided into N
rBGindividual RBG (resourceblockgroup, Resource Block group), each RBG comprises P RB (resourceblock, Resource Block),
wherein
represent the smallest positive integral being not less than x, N is set
rBGindividual bit and N
rBGindividual RBG to being one-to-one relationship, by this N
rBGindividual bit indicates each RBG whether to distribute to UE and uses; Wherein, the value of P is relevant with system bandwidth, is specially:
Table 1
Resource allocation type 1: by system bandwidth
be divided into N
rBGindividual RBG, each RBG comprise P RB,
and by N
rBGindividual RBG is divided into P RBG set, adopts
individual bit indicates each RBG to gather and whether distributes to UE use, and arranges
during individual bit and selected RBG gather
individual RB is one-to-one relationship, by this
individual bit indicates in selected RBG set
whether each RB in individual RB distributes to UE uses; Wherein, the value of P is relevant with system bandwidth, specifically as shown in table 1.
Resource allocation type 2: by the mapping relations of 1 bit instruction VRB to PRB, adopt
individual bit indicates the VRB used.
For DCI format 1A, 1B or 1D, RIV (resourceindicationvalue, resource indicated value) provides the super beginning resource number RB of used VRB
startwith the number L of used VRB
cRBs, wherein, RIV is defined as:
If,
, then
Otherwise,
Wherein, L
cRBs>=1 and be no more than
VRB is corresponded to for DCI format 1C, RIV and starts resource number RB
start=0,
with the number of used VRB
wherein,
with value relevant with system bandwidth, specifically as shown in table 2.
Table 2
Visible, the content of resource instruction is all relevant with system bandwidth with used bit number.
Under prior art, when adopting CoMP technology, service point and/or cooperation set other one or more transfer points interior can participate in the transfer of data to a certain UE.Due to the difference of applied environment and manufacturer, the system bandwidth that in cooperation set, each transfer point is supported when real work may be different, and the content of resource instruction is relevant with system bandwidth, (namely in CoMP transmission) needs are determined to carry out resource instruction by the system bandwidth of which transfer point in cooperation set in this case, at present, clear and definite method is not yet formulated.
Summary of the invention
The embodiment of the present invention provides a kind of instruction of running time-frequency resource and confirmation method and device, in order to realize the unified instruction of running time-frequency resource in CoMP transmission.
The concrete technical scheme that the embodiment of the present invention provides is as follows:
An indicating means for running time-frequency resource, comprising:
Network side adopts high-level signaling or Downlink Control Information DCI to the system bandwidth of terminal notification at least two transfer points, and from the system bandwidth of described at least two transfer points, selects the system bandwidth of a transfer point as target bandwidth;
Network side determines the running time-frequency resource used when carrying out transfer of data to terminal;
Network side, based on described target bandwidth, determines instruction content and the indicating mode of running time-frequency resource in corresponding downlink signaling;
Described downlink signaling is mail to terminal by network side, makes terminal determine the running time-frequency resource distributed according to described downlink signaling.
A confirmation method for running time-frequency resource, comprising:
Terminal obtains the system bandwidth of at least two transfer points according to network side notice;
Terminal receives the downlink signaling for carrying out running time-frequency resource instruction that network side sends, and described in adopting, the system bandwidth of at least two transfer points carries out blind check to described downlink signaling, to determine target bandwidth;
Terminal based on described target bandwidth, according to the running time-frequency resource that described downlink signaling determination network side distributes.
An indicating device for running time-frequency resource, comprising:
First processing unit, for adopting high-level signaling or Downlink Control Information DCI to the system bandwidth of terminal notification at least two transfer points, and from the system bandwidth of described at least two transfer points, selects the system bandwidth of a transfer point as target bandwidth;
Second processing unit, for determining the running time-frequency resource used when carrying out transfer of data to terminal;
3rd processing unit, for based on described target bandwidth, determines instruction content and the indicating mode of running time-frequency resource in corresponding Downlink Control Information downlink signaling;
Communication unit, for described downlink signaling is mail to terminal, makes terminal determine the running time-frequency resource distributed according to described downlink signaling.
A confirmation device for running time-frequency resource, comprising:
First control unit, for obtaining the system bandwidth of at least two transfer points according to network side notice;
Communication unit, for receiving the Downlink Control Information downlink signaling for carrying out running time-frequency resource instruction that network side sends, and notify that the system bandwidth of at least two transfer points described in described first control unit employing carries out blind check to described downlink signaling, to determine target bandwidth;
Second control unit, for based on described target bandwidth, according to the running time-frequency resource that described downlink signaling determination network side distributes.
In the embodiment of the present invention, base station notifies the system bandwidth of at least two transfer points to UE, therefrom select the system bandwidth of at least one transfer point as target bandwidth again, and be that UE distributes running time-frequency resource according to this target bandwidth, and in downlink signaling, carry out running time-frequency resource instruction based on this target bandwidth, and after UE reception downlink signaling, adopt the mode of blind check from the system bandwidth of at least two transfer points obtained, pick out the target bandwidth of base station use, and resolve based on the downlink signaling that the target bandwidth docking obtained is received, thus determine the running time-frequency resource that base station side is distributed.Like this, just in CoMP transmission, in cooperation set, the system bandwidth possibility of each transfer point is different, achieve the unified instruction of running time-frequency resource, thus ensure that UE can carry out effective data receiver based on the running time-frequency resource obtained, system handling process under perfect CoMP transmission, improves systematic function.
Accompanying drawing explanation
Fig. 1 is base station functions structural representation in the embodiment of the present invention;
Fig. 2 is termination function structural representation in the embodiment of the present invention;
Fig. 3 is that in the embodiment of the present invention, running time-frequency resource instruction flow chart is carried out to terminal in base station.
Fig. 4 is that in the embodiment of the present invention, terminal carries out running time-frequency resource confirmation flow chart according to base station instruction.
Embodiment
In order to improve agreement flow process, in the embodiment of the present invention, formulate a kind of method of carrying out running time-frequency resource instruction and confirmation in CoMP transmission.
Below in conjunction with accompanying drawing, the preferred embodiment of the invention is described in detail.
In the embodiment of the present invention, transfer point is defined as one group of transmit antenna that geographical position is identical, the different sectors with site correspond to different transfer points.In CoMP transmission, directly and/or indirectly participate in the transfer point composition cooperation transmission set sending data to UE, wherein, send PBCH (physicalbroadcastchannel to UE, Physical Broadcast Channel) transfer point of signaling is called service point, other can be called non-serving point.Meanwhile, in order to realize CoMP transmission, also need UE to feed back the channel condition information of corresponding transfer point to network side, these set of having been fed back the transfer point of channel condition information by UE are also called feedback set.
In the embodiment of the present invention, when network side carries out running time-frequency resource instruction to UE, DCI can be used to indicate PDSCH (PhysicalDownlinkSharedChannel to UE, downlink physical shared channel) resource allocation conditions, also can by high-level signaling to UEE-PDCCH (EnhancedPhysicalDownlinkControlChannel, strengthen Physical Downlink Control Channel) resource allocation conditions, in following embodiment, all be introduced for the former, but be adapted to the latter equally.
Consult shown in Fig. 1, in the embodiment of the present invention, 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, for adopting high-level signaling or Downlink Control Information DCI to notify the system bandwidth of at least two transfer points to UE, and from the system bandwidth of these at least two transfer points, selects the system bandwidth of a transfer point as target bandwidth;
Second processing unit 12, for determining the running time-frequency resource used when carrying out transfer of data to UE;
3rd processing unit 13, for based target bandwidth, determines instruction content and the indicating mode of running time-frequency resource in corresponding DCI;
Communication unit 10, for DCI is mail to UE, makes UE determine the running time-frequency resource distributed according to this DCI.
Consult shown in Fig. 2, in the embodiment of the present invention, UE comprises communication unit 20, first control unit 21 and the second control unit 22, wherein,
First control unit 21, for obtaining the system bandwidth of at least two transfer points according to notice;
Communication unit 20, for receiving the DCI for carrying out running time-frequency resource instruction that network side sends, and notifies that the first control unit 21 adopts the system bandwidth of above-mentioned at least two transfer points to carry out blind check to this DCI, to determine target bandwidth;
Second control unit 22, for based target bandwidth, determines according to above-mentioned DCI the running time-frequency resource that network side distributes.
Based on technique scheme, consult shown in Fig. 3, in the embodiment of the present invention, the detailed process that running time-frequency resource instruction is carried out to UE in base station is as follows:
Step 300: base station notifies the system bandwidth of at least two transfer points to UE, and from the system bandwidth of these at least two transfer points, select the system bandwidth of a transfer point as target bandwidth.
In this embodiment, base station can represent any one or more transfer point in cooperation transmission set, indicates as long as can carry out running time-frequency resource to UE.When notifying the system bandwidth of at least two transfer points to UE, base station can by the system bandwidth of the part or all of transfer point in cooperation transmission set corresponding for UE notice UE; Or, by the system bandwidth of the part or all of transfer point in feedback set corresponding for UE notice UE; Wherein, base station can adopt high-level signaling or DCI that the system bandwidth of above-mentioned at least two transfer points is sent to UE, further, if base station fails to determine whether UE receives the system bandwidth of above-mentioned at least two transfer points, in order to ensure that system is normally run, the system bandwidth of service point corresponding for UE directly can be defined as target bandwidth by base station, and carries out running time-frequency resource instruction based on this target bandwidth to UE in follow-up flow process.
On the other hand, if UE receives the system bandwidth of above-mentioned at least two transfer points that base station sends smoothly, then base station is from the system bandwidth of above-mentioned at least two transfer points, select the system bandwidth of a transfer point as target bandwidth, be specially: the system bandwidth of the transfer point transmitting data directly to UE can be defined as target bandwidth by base station.
Step 310: the running time-frequency resource that UE uses when carrying out transfer of data is determined in base station.
Particularly, the channel condition information that base station can report according to UE, the service conditions and offered load etc. of UE, determine the data transmission scheme (namely transmitting data by which transfer point in cooperation transmission set to UE) used for UE, and the running time-frequency resource used under this data transmission scheme, also PDSCH (PhysicalDownlinkSharedChannel, downlink physical shared channel) resource is claimed.
Step 320: instruction content and the indicating mode of running time-frequency resource in DCI, based on above-mentioned target bandwidth, is determined in base station.
In the present embodiment, in the CoMP transmission adopted under a certain DCI format, the instruction content of running time-frequency resource and indicating mode (e.g., bit length), can not have influence on the use of other DCI format (e.g., bit length); Such as, agreement adopts DCIformat2C form to support CoMP transmission, when adopting DCIformat2C form to carry out running time-frequency resource instruction, adopt instruction content and the indicating mode of the corresponding running time-frequency resource of said method determination target bandwidth sum, the bit length adopted under its bit length adopted can not affect the forms such as DCIformat1A, DCIformat1B.Wherein, the bit length of other DCI format can still be determined by the system bandwidth of UE corresponding with service point.
On the other hand, in the present embodiment, instruction content and the indicating mode of the running time-frequency resource in corresponding DCI is determined in base station during according to target bandwidth, can adopt but be not limited to following three kinds of implementations:
First kind of way is: base station is according to each RBG divided in target bandwidth certainty annuity, and for carrying the bit length of time-frequency resource allocating information in DCI, and based on the RBG that the running time-frequency resource distributing to UE comprises, in this DCI, indicate each RBG whether to allow UE to use by the bit of corresponding length respectively to UE.
Such as, base station adopts resource allocation type 0 to indicate the distribution condition of running time-frequency resource, specific as follows:
The target bandwidth that base station will use in Resourse Distribute and resource instruction
be divided into N
rBGindividual RBG, each RBG comprise P Resource Block (resourceblock, RB),
wherein,
represent the smallest positive integral being not less than x, the value of P is relevant to target bandwidth, specifically as shown in table 3:
Table 3
Base station adopts N in DCI
rBGindividual bit indicates each RBG whether to distribute to UE and uses, this N
rBGindividual bit and N
rBGindividual RBG is one-to-one relationship, and namely the value of each bit all represents whether corresponding RBG distributes to UE, and e.g., " 1 " represents and distributes, and " 0 " represents unallocated.
The second way is: base station is gathered according to each RBG divided in target bandwidth certainty annuity and each RBG, and for carrying the bit length of time-frequency resource allocating information in DCI, and the RB that the RBG comprised based on the running time-frequency resource distributing to UE is corresponding, whether allow UE use, and in allowing the RBG used to gather, whether each RB allows UE to use if in DCI, indicating each RBG to gather by the bit of corresponding length respectively to UE.
Such as, base station adopts resource allocation type 1 to indicate the distribution condition of running time-frequency resource, specific as follows:
Base station uses target bandwidth by Resourse Distribute and resource instruction
be divided into N
rBGindividual RBG, each RBG comprise P RB,
by N
rBGindividual RBG is divided into P RBG set, and wherein, the value of P is relevant to target bandwidth, specifically as shown in table 3.
Base station adopts in DCI
whether individual bit indicates each RBG set to allow UE to use, and adopts
in the RBG set that individual bit instruction allows UE to use, whether each RB allows UE to use, this
during individual bit and the RBG allowing UE to use gather
individual RB is one-to-one relationship, and namely the value of each bit all represents whether corresponding RB distributes to UE, and e.g., " 1 " represents and distributes, and " 0 " represents unallocated.
The third mode is: base station indicates the mapping relations of VRB to PBR in DCI, and determine in this DCI for carrying the bit length of time-frequency resource allocating information according to target bandwidth, and based target bandwidth sum distributes to the position of the running time-frequency resource of UE, in this DCI, indicated starting resource numbering and the VRB number of VRB to UE by the bit of corresponding length.
Such as, base station adopts resource allocation type 2 to indicate the distribution condition of running time-frequency resource, specific as follows:
Base station indicates the mapping relations of VRB to PRB in DCI by 1 bit, and adopts in DCI
the starting resource numbering of the VRB that individual bit instruction allows UE to use and number, wherein,
for target bandwidth,
If DCIformat1A, DCIformat1B or DCIformat1D are for supporting CoMP transmission, for DCIformat1A, DCIformat1B or DCIformat1D, base station can above-mentioned
in individual bit, the starting resource numbering RB of the VRB allowing UE to use by RIV instruction
startwith number L
cRBs, wherein, RIV is defined as:
If,
then
Otherwise,
Wherein, L
cRBs>=1 and be no more than
If DCIformat1C is for supporting CoMP transmission, for DCIformat1C, base station can above-mentioned
in individual bit, the starting resource numbering RB of the VRB allowing UE to use by RIV instruction
startwith number L
cRBs, wherein, RIV
Corresponding VRB starting resource numbering RB
start=0,
and the number of VRB corresponding to RIV
wherein,
with value relevant with target bandwidth, specifically as shown in table 4:
Table 4
In subsequent embodiment, RIV confirms all in the manner described above, will repeat no more.
Step 330: the above-mentioned DCI in base station mails to UE, makes UE determine the running time-frequency resource distributed according to the DCI received.
Based on above-described embodiment, consult shown in Fig. 4, accordingly, in the embodiment of the present invention, the detailed process that UE carries out running time-frequency resource confirmation according to base station instruction is as follows:
Step 400:UE obtains the system bandwidth of at least two transfer points according to base station notice.
Particularly, the system bandwidth of at least two transfer points that UE obtains according to the notice of base station can be the system bandwidth of the part or all of transfer point in the cooperation transmission set that UE is corresponding; Or, also can be the system bandwidth of the part or all of transfer point in the feedback set that UE is corresponding; Wherein, the notice of the UE high-level signaling that can be sent by base station or DCI obtains the system bandwidth of above-mentioned at least two transfer points; Further, if UE fails to receive the system bandwidth of above-mentioned at least two transfer points of base station notice, in order to ensure that system is normally run, the system bandwidth of service point corresponding for this UE directly can be defined as target bandwidth by UE, and based on the distribution condition of this target bandwidth determination running time-frequency resource in follow-up flow process.
Step 410:UE receives the DCI for carrying out running time-frequency resource instruction that base station sends, and adopts the system bandwidth of above-mentioned at least two transfer points to carry out blind check, to determine target bandwidth to the DCI received.
Be specially: UE first reads the system bandwidth of any one transfer point from the system bandwidth of at least two transfer points obtained, and determine in DCI for carrying the bit length of time-frequency resource allocating information based on this system bandwidth, then, UE judges to adopt the bit length obtained whether can obtain time-frequency resource allocating information in the DCI received, if so, then the system bandwidth of any one transfer point above-mentioned is defined as target bandwidth; Otherwise the system bandwidth reading next transfer point repeats aforesaid operations and proceeds to judge, until obtain target bandwidth.
Such as, the system bandwidth of three transfer points is informed to UE by base station, be called system bandwidth a, system bandwidth b and system bandwidth c, the first supposing the system bandwidth a of UE is target bandwidth, and calculate in DCI for carrying the bit length a of time-frequency resource allocating information according to system bandwidth a, and from DCI, read time-frequency resource allocating information according to bit length a, suppose to read unsuccessfully, then UE certainty annuity bandwidth a is not target bandwidth; Then, it is target bandwidth that UE continues supposing the system bandwidth b, and calculate in DCI for carrying the bit length b of time-frequency resource allocating information according to system bandwidth b, and from DCI, read time-frequency resource allocating information according to bit length b, suppose to read successfully, then UE certainty annuity bandwidth b is target bandwidth, without the need to reading system bandwidth c again.
Step 420:UE is based on above-mentioned target bandwidth, and the DCI according to receiving determines the running time-frequency resource that network side distributes.
In the embodiment of the present invention, corresponding with step 320, when performing step 420, UE can adopt but be not limited to following three kinds of implementations:
First kind of way is: by the bit of corresponding length, UE, according to each RBG divided in target bandwidth certainty annuity, and for carrying the bit length of time-frequency resource allocating information in DCI, and determines whether each RBG allows to use respectively.
Such as: UE determines the distribution condition of running time-frequency resource according to resource allocation type 0, specific as follows:
UE is by target bandwidth
be divided into N
rBGindividual RBG, each RBG comprise P RB,
wherein,
represent the smallest positive integral being not less than x, the value of P is relevant to target bandwidth, specifically as shown in table 3.
UE passes through N in the DCI received
rBGwhether each RBG of individual bit determination can use, this N
rBGindividual bit and N
rBGindividual RBG is one-to-one relationship, and namely the value of each bit all represents whether corresponding RBG distributes to UE, and e.g., " 1 " represents and distributes, and " 0 " represents unallocated.On the other hand, N
rBGthe load position of individual bit in DCI can indicate UE by base station, or, arranged by base station and UE, or, perform according to agreement regulation, do not repeat them here.
The second way is: UE gathers according to each RGB divided in target bandwidth certainty annuity and each RBG, and for carrying the bit length of time-frequency resource allocating information in DCI, and determine whether each RBG set allows to use respectively by the bit of corresponding length, and in allowing the RGB used to gather, whether each RB allows to use.
Such as, UE determines the distribution condition of running time-frequency resource according to resource allocation type 1, specific as follows:
UE is by target bandwidth
be divided into N
rBGindividual RBG, each RBG comprise P RB,
by N
rBGindividual RBG is divided into P RBG set, and wherein, the value of P is relevant to target bandwidth, specifically as shown in table 3.
UE passes through in DCI
whether each RBG of individual bit determination set allows to use, and passes through
whether individual bit determination allows each RB in the RBG set used to allow to use, this
during individual bit and the RBG allowing UE to use gather
individual RB is one-to-one relationship, and namely the value of each bit all represents whether corresponding RB distributes to UE, and e.g., " 1 " represents and distributes, and " 0 " represents unallocated.On the other hand,
individual bit and
the load position of individual bit in DCI can indicate UE by base station, or, arranged by base station and UE, or, perform according to agreement regulation, do not repeat them here.
The third mode is: UE determines the mapping relations of VRB to PBR according to the DCI received, and determine for carrying the bit length of time-frequency resource allocating information in DCI according to target bandwidth, and numbered and VRB number by the starting resource of the bit determination VRB of corresponding length.
Such as, UE determines the distribution condition of running time-frequency resource according to resource allocation type 2, specific as follows:
The indication information of 1 bit that UE carries according to DCI determines the mapping relations of VRB to PRB, and passes through in DCI
individual bit determination allows starting resource numbering and the number of the VRB used, wherein,
for target bandwidth,
For DCIformat1A, DCIformat1B, DCIformat1D and DCIformat1C, UE all can by above-mentioned
the RIV that individual bit carries determines the starting resource numbering RB of the VRB allowing UE to use
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 present invention, base station adopts high-level signaling or Downlink Control Information DCI to notify the system bandwidth of at least two transfer points to UE, therefrom select the system bandwidth of at least one transfer point as target bandwidth again, and be that UE distributes running time-frequency resource according to this target bandwidth, and in downlink signaling, carry out running time-frequency resource instruction based on this target bandwidth, and after UE reception downlink signaling, adopt the mode of blind check from the system bandwidth of at least two transfer points obtained, pick out the target bandwidth of base station use, and resolve based on the downlink signaling that the target bandwidth docking obtained is received, thus determine the running time-frequency resource that base station side is distributed.Like this, just in CoMP transmission, in cooperation set, the system bandwidth possibility of each transfer point is different, achieve the unified instruction of running time-frequency resource, thus ensure that UE can carry out effective data receiver based on the running time-frequency resource obtained, system handling process under perfect CoMP transmission, improves systematic function.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (22)
1. an indicating means for running time-frequency resource, is characterized in that, comprising:
Network side adopts high-level signaling or Downlink Control Information DCI to the system bandwidth of terminal notification at least two transfer points, and from the system bandwidth of described at least two transfer points, selects the system bandwidth of a transfer point as target bandwidth;
Network side determines the running time-frequency resource used when carrying out transfer of data to terminal;
Network side, based on described target bandwidth, determines instruction content and the indicating mode of running time-frequency resource in corresponding downlink signaling;
Described downlink signaling is mail to terminal by network side, makes terminal determine the running time-frequency resource distributed according to described downlink signaling.
2. the method for claim 1, is characterized in that, network side, to the system bandwidth of terminal notification at least two transfer points, comprising:
Network side is by the system bandwidth notification terminal of the part or all of transfer point in cooperation transmission set corresponding for terminal; Or, by the system bandwidth notification terminal of the part or all of transfer point in feedback set corresponding for terminal.
3. the method for claim 1, it is characterized in that, network side adopts high-level signaling or DCI after the system bandwidth of terminal notification at least two transfer points, determine if fail terminal whether receive described in the system bandwidth of at least two transfer points, then the system bandwidth of the service point in cooperation transmission set corresponding for described terminal is defined as target bandwidth.
4. the method for claim 1, is characterized in that, network side, from the system bandwidth of described at least two transfer points, is selected the system bandwidth of at least one transfer point as target bandwidth, being comprised:
Network side is by the system bandwidth of described at least two transfer points, and the system bandwidth directly to a transfer point of terminal transmission data is defined as target bandwidth.
5. the method as described in any one of claim 1-4, is characterized in that, network side, based on described target bandwidth, when determining instruction content and the indicating mode of running time-frequency resource in described downlink signaling, comprising:
Network side is according to each Resource Block group RBG divided in described target bandwidth certainty annuity, and for carrying the bit length of time-frequency resource allocating information in described downlink signaling, and based on the RBG that the running time-frequency resource distributing to terminal comprises, in described downlink signaling, indicate each RBG whether to allow terminal to use by the bit of corresponding length respectively to terminal;
Or
Network side is gathered according to each RBG divided in described target bandwidth certainty annuity and each RBG, and for carrying the bit length of time-frequency resource allocating information in described downlink signaling, and the Resource Block RB that the RBG comprised based on the running time-frequency resource distributing to terminal is corresponding, whether allow terminal use, and in allowing the RBG used to gather, whether each RB allows terminal to use if in described downlink signaling, indicating each RBG to gather by the bit of corresponding length respectively to terminal;
Or
Network side indicates virtual resource blocks VRB to the mapping relations of Physical Resource Block PBR in described downlink signaling, and determine in described downlink signaling for carrying the bit length of time-frequency resource allocating information according to described target bandwidth, and the position of the running time-frequency resource of terminal is distributed to based on described target bandwidth sum, numbered and VRB number by the starting resource of the bit of corresponding length to terminal instruction VRB in described downlink signaling.
6. a confirmation method for running time-frequency resource, is characterized in that, comprising:
Terminal obtains the system bandwidth of at least two transfer points according to network side notice;
Terminal receives the downlink signaling for carrying out running time-frequency resource instruction that network side sends, and described in adopting, the system bandwidth of at least two transfer points carries out blind check to described downlink signaling, to determine target bandwidth;
Terminal based on described target bandwidth, according to the running time-frequency resource that described downlink signaling determination network side distributes.
7. method as claimed in claim 6, is characterized in that, terminal obtains the system bandwidth of at least two transfer points according to network side notice, comprising:
Terminal obtains the system bandwidth of the part or all of transfer point in cooperation transmission set corresponding to this terminal according to network side notice; Or, obtain the system bandwidth of the part or all of transfer point in feedback set corresponding to this terminal.
8. method as claimed in claim 7, is characterized in that, the system bandwidth of at least two transfer points described in the notice acquisition of the high-level signaling that terminal sends according to network side or Downlink Control Information DCI.
9. method as claimed in claim 8, is characterized in that, if terminal fails to receive high-level signaling or DCI that network side sends, then the system bandwidth of the service point in cooperation transmission set corresponding for this terminal is defined as target bandwidth.
10. method as claimed in claim 6, is characterized in that, described in terminal adopts, the system bandwidth of at least two transfer points carries out blind check to described downlink signaling, to determine target bandwidth, comprising:
Terminal reads the system bandwidth of any one transfer point from the system bandwidth of described at least two transfer points, and based in this system bandwidth determination downlink signaling for carrying the bit length of time-frequency resource allocating information;
Terminal judges adopts described bit length whether can obtain time-frequency resource allocating information in described downlink signaling, if so, then the system bandwidth of any one transfer point described is defined as target bandwidth; Otherwise the system bandwidth reading next transfer point proceeds to judge, until obtain target bandwidth.
11. methods as described in any one of claim 6-10, is characterized in that, terminal based target bandwidth, according to the running time-frequency resource that described downlink signaling determination network side distributes, comprising:
By the bit of corresponding length, terminal, according to each Resource Block group RBG divided in target bandwidth certainty annuity, and for carrying the bit length of time-frequency resource allocating information in downlink signaling, and determines whether each RBG allows to use respectively;
Or,
Terminal is gathered according to each RGB divided in the wide certainty annuity of marker tape and each RBG, and for carrying the bit length of time-frequency resource allocating information in downlink signaling, whether and allow to use by each RBG of bit determination set of corresponding length, and in allowing the RBG used to gather, whether each RB allows to use;
Or,
Terminal determines the mapping relations of VRB to PBR according to described downlink signaling, and according in described target bandwidth determination downlink signaling for carrying the bit length of time-frequency resource allocating information, and by the starting resource numbering of the bit determination VRB of corresponding length and VRB number.
The indicating device of 12. 1 kinds of running time-frequency resources, is characterized in that, comprising:
First processing unit, for adopting high-level signaling or Downlink Control Information DCI to the system bandwidth of terminal notification at least two transfer points, and from the system bandwidth of described at least two transfer points, selects the system bandwidth of a transfer point as target bandwidth;
Second processing unit, for determining the running time-frequency resource used when carrying out transfer of data to terminal;
3rd processing unit, for based on described target bandwidth, determines instruction content and the indicating mode of running time-frequency resource in corresponding downlink signaling;
Communication unit, for described downlink signaling is mail to terminal, makes terminal determine the running time-frequency resource distributed according to described downlink signaling.
13. devices as claimed in claim 12, it is characterized in that, described first processing unit, to the system bandwidth of terminal notification at least two transfer points, comprising:
Described first processing unit is by the system bandwidth notification terminal of the part or all of transfer point in cooperation transmission set corresponding for terminal; Or, by the system bandwidth notification terminal of the part or all of transfer point in feedback set corresponding for terminal.
14. devices as claimed in claim 12, it is characterized in that, described first processing unit adopts high-level signaling or DCI after the system bandwidth of terminal notification at least two transfer points, determine if fail terminal whether receive described in the system bandwidth of at least two transfer points, then the system bandwidth of the service point in cooperation transmission set corresponding for described terminal is defined as target bandwidth.
15. devices as claimed in claim 12, is characterized in that, described first processing unit, from the system bandwidth of described at least two transfer points, is selected the system bandwidth of at least one transfer point as target bandwidth, being comprised:
Described first processing unit is by the system bandwidth of described at least two transfer points, and the system bandwidth directly to a transfer point of terminal transmission data is defined as target bandwidth.
16. devices as described in any one of claim 12-15, it is characterized in that, described 3rd processing unit, based on described target bandwidth, when determining instruction content and the indicating mode of running time-frequency resource in described downlink signaling, comprising:
Described 3rd processing unit based on described target bandwidth according to each Resource Block group RBG divided in described target bandwidth certainty annuity, and for carrying the bit length of time-frequency resource allocating information in described downlink signaling, and based on the RBG that the running time-frequency resource distributing to terminal comprises, in described downlink signaling, indicate each RBG whether to allow terminal to use by the bit of corresponding length respectively to terminal;
Or
Described 3rd processing unit is gathered according to each RBG divided in described target bandwidth certainty annuity and each RBG based on described target bandwidth, and for carrying the bit length of time-frequency resource allocating information in described downlink signaling, and the Resource Block RB that the RBG comprised based on the running time-frequency resource distributing to terminal is corresponding, whether allow terminal use, and in allowing the RBG used to gather, whether each RB allows terminal to use if in described downlink signaling, indicating each RBG to gather by the bit of corresponding length respectively to terminal;
Or
Described 3rd processing unit indicates virtual resource blocks VRB to the mapping relations of Physical Resource Block PBR based on described target bandwidth in described downlink signaling, and determine in described downlink signaling for carrying the bit length of time-frequency resource allocating information according to described target bandwidth, and the position of the running time-frequency resource of terminal is distributed to based on described target bandwidth sum, numbered and VRB number by the starting resource of the bit of corresponding length to terminal instruction VRB in described downlink signaling.
The confirmation device of 17. 1 kinds of running time-frequency resources, is characterized in that, comprising:
First control unit, for obtaining the system bandwidth of at least two transfer points according to network side notice;
Communication unit, for receiving the downlink signaling for carrying out running time-frequency resource instruction that network side sends, and notifies that the system bandwidth of at least two transfer points described in described first control unit employing carries out blind check to described downlink signaling, to determine target bandwidth;
Second control unit, for based on described target bandwidth, according to the running time-frequency resource that described downlink signaling determination network side distributes.
18. devices as claimed in claim 17, is characterized in that, described first control unit obtains the system bandwidth of at least two transfer points according to network side notice, comprising:
Described first control unit obtains the system bandwidth of the part or all of transfer point in cooperation transmission set corresponding to this device according to network side notice; Or, obtain the system bandwidth of the part or all of transfer point in feedback set corresponding to this device.
19. devices as claimed in claim 18, is characterized in that, the system bandwidth of at least two transfer points described in the notice of the high-level signaling that described first control unit sends according to network side or Downlink Control Information DCI obtains.
20. devices as claimed in claim 19, is characterized in that, if described first control unit fails to receive high-level signaling or DCI that network side sends, then the system bandwidth of the service point in cooperation transmission set corresponding for this device are defined as target bandwidth.
21. devices as claimed in claim 17, is characterized in that, described in described first control unit adopts, the system bandwidth of at least two transfer points carries out blind check to described downlink signaling, to determine target bandwidth, comprising:
Described first control unit reads the system bandwidth of any one transfer point from the system bandwidth of described at least two transfer points, and based in this system bandwidth determination downlink signaling for carrying the bit length of time-frequency resource allocating information;
Described first control unit judges to adopt described bit length whether can obtain time-frequency resource allocating information in described downlink signaling, if so, then the system bandwidth of any one transfer point described is defined as target bandwidth; Otherwise the system bandwidth reading next transfer point proceeds to judge, until obtain target bandwidth.
22. devices as described in any one of claim 17-21, is characterized in that, described second control unit based target bandwidth, according to the running time-frequency resource that described downlink signaling determination network side distributes, comprising:
By the bit of corresponding length, described second control unit, according to each RBG divided in target bandwidth certainty annuity, and for carrying the bit length of time-frequency resource allocating information in downlink signaling, and determines whether each RBG allows to use respectively;
Or,
Described second control unit is gathered according to each RBG divided in the wide certainty annuity of marker tape and each RBG, and for carrying the bit length of time-frequency resource allocating information in downlink signaling, whether and allow terminal to use by each RBG of bit determination set of corresponding length, and in allowing the RBG used to gather, whether each RB allows to use;
Or,
Described second control unit determines the mapping relations of VRB to PBR according to described downlink signaling, and according in described target bandwidth determination downlink signaling for carrying the bit length of time-frequency resource allocating information, and by the starting resource numbering of the bit determination VRB of corresponding length and VRB number.
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| JP7149849B2 (en) * | 2015-12-31 | 2022-10-07 | 華為技術有限公司 | Method, base station and terminal device for transmitting downlink feedback information |
| CN107302796B (en) | 2016-03-31 | 2023-04-18 | 华为技术有限公司 | Data transmission method, network side equipment and terminal equipment |
| CN114828252A (en) | 2016-04-08 | 2022-07-29 | 华为技术有限公司 | Method and device for multi-transmission point data transmission |
| CN107306177B (en) | 2016-04-22 | 2023-11-10 | 华为技术有限公司 | Method for transmitting data, user equipment and network equipment |
| WO2018086913A1 (en) | 2016-11-14 | 2018-05-17 | Telefonaktiebolaget Lm Ericsson (Publ) | Methods of wireless device and network node, such wireless device and network node, and computer programs thereof |
| CN113115443B (en) | 2017-02-27 | 2022-12-23 | 维沃软件技术有限公司 | Resource allocation indication method, base station and terminal |
| CN107154835B (en) * | 2017-05-05 | 2020-05-19 | 宇龙计算机通信科技(深圳)有限公司 | Data sending method and device |
| CN111107643B (en) * | 2017-06-16 | 2021-04-09 | 华为技术有限公司 | Bandwidth resource allocation method, device and system |
| CN109391417B (en) | 2017-08-11 | 2022-05-13 | 华为技术有限公司 | Method, device and system for transmitting downlink control information |
| WO2020077644A1 (en) | 2018-10-19 | 2020-04-23 | 北京小米移动软件有限公司 | Resource switching method, and resource allocation method, apparatus, device and system |
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