CN101521914B - Mapping method used for HS-SCCH resource allocation information field - Google Patents
Mapping method used for HS-SCCH resource allocation information field Download PDFInfo
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- CN101521914B CN101521914B CN2008100811260A CN200810081126A CN101521914B CN 101521914 B CN101521914 B CN 101521914B CN 2008100811260 A CN2008100811260 A CN 2008100811260A CN 200810081126 A CN200810081126 A CN 200810081126A CN 101521914 B CN101521914 B CN 101521914B
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Abstract
The invention provides a mapping method used for HS-SCCH resource allocation information field, comprising the following steps: a node determines the allocation condition of current resource; accordinThe invention provides a mapping method used for HS-SCCH resource allocation information field, comprising the following steps: a node determines the allocation condition of current resource; according to that whether the idle code channel of each time slot allocated for user equipment is the same and by setting the HS-SCCH resource allocation information field, the spreading code set used by the g to that whether the idle code channel of each time slot allocated for user equipment is the same and by setting the HS-SCCH resource allocation information field, the spreading code set used by the time slot allocated to the HS-SCCH is correspondingly set. time slot allocated to the HS-SCCH is correspondingly set.
Description
Technical field
Present invention relates in general to moving communicating field, more particularly, relate to the mapping method in HS-SCCH (High-Speed Shared Control Channel) resource allocation information territory in a kind of TD-SCDMA (TD-CDMA Time Division-Code Division Multiple Access) system.
Background technology
Along with the development of mobile communication technology, 3G (3G (Third Generation) Moblie) technology obtains application more and more widely, and wherein, the TD-SCDMA system becomes the important composition in the 3G communication technology.It is a kind of technology that improves the 3-G (Generation Three mobile communication system) downlink transmission data rate that high speed downlink packet inserts (HSDPA).Under the situation of using a carrier wave, the TD-SCDMA system is after using the HSDPA technology, and the descending business datum maximum rate of user can be brought up to 2.8M bps.
Fig. 1 illustrates the relevant device of HSDPA in the TD-SCDMA system and the sketch map of physical channel.TD-SCDMA system shown in Figure 1 inserts part and comprises: radio network controller (RNC), Node B and subscriber equipment (UE).Resource relevant with HSDPA in the TD-SCDMA system comprises: high-speed physical downlink shared channel (HS-PDSCH) (HS-PDSCH) is used for service data transmission; High-Speed Shared Control Channel (HS-SCCH) is used for command transmitting information; And high-speed shared information channel (HS-SICH), be used for the control information of transmission user equipment feedback.
Fig. 2 is the flow chart that schematically shows HSDPA workflow in the TD-SCDMA system.If one or more subscriber equipmenies are configured to use HSDPA; Then begin to reach the buffer memory of Node B when downlink data; Thereby in the time of need data being sent to certain UE; Node B at first confirms to distribute to the out of Memory such as time slot, code channel resource and modulation system of said UE at step S10 according to information such as channel condition, buffer status, and in advance these control informations is offered UE through HS-SCCH.When UE receives that the HS-SCCH corresponding with it goes up the control information of transmission; It is at the step S20 control information entrained according to the HS-SCCH downlink data that receiving node B issues on corresponding HS-PDSCH channel, and indicates through HS-SICH feedback result and channel quality at step S30.
As the down physical channel that carries control information, employed code channel of HS-PDSCH and time slot that HS-SCCH is distributed by Node B to the UE notice through its resource allocation information territory, wherein, said resource allocation information territory comprises: signaling bit x
Ccs, 1, x
Ccs, 2..., x
Ccs, 7, x
Ccs, 8And signaling bit x
Ts, 1, x
Ts, 2..., x
Ts, 5Node B except will considering channel condition, buffer status, uncompleted re-transmission, last factors such as transmitting time, also will be considered the restriction of current time slot and code channel allocation situation when the time slot of the HS-PDSCH that confirms to distribute to UE and code channel resource.
Present TD-SCDMA agreement is stipulated as follows the mapping method in HS-SCCH resource allocation information territory:
Node B is distributed to spreading code continuous dispensing between initial code and stop code of the physical channel HS-PDSCH use of UE, and comprises initial code and stop code.Wherein, initial code k
StartBy bit x
Ccs, 1, x
Ccs, 2, x
Ccs, 3, x
Ccs, 4Notify stop code k
StopBy bit x
Ccs, 5, x
Ccs, 6, x
Ccs, 7, x
Ccs, 8Notify, their mapping relations are as shown in table 1:
Table 1
| k start | ?x ccs，1 | ?x ccs，2 | x ccs，3 | ?x ccs，4 | k stop | ?x ccs，5 | ?x ccs，6 | ?x ccs，7 | ?x ccs，8 |
| 1 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
| 2 | 0 | 0 | 0 | 1 | 2 | 0 | 0 | 0 | 1 |
| 3 | 0 | 0 | 1 | 0 | 3 | 0 | 0 | 1 | 0 |
| 4 | 0 | 0 | 1 | 1 | 4 | 0 | 0 | 1 | 1 |
| 5 | 0 | 1 | 0 | 0 | 5 | 0 | 1 | 0 | 0 |
| 6 | 0 | 1 | 0 | 1 | 6 | 0 | 1 | 0 | 1 |
| 7 | 0 | 1 | 1 | 0 | 7 | 0 | 1 | 1 | 0 |
| 8 | 0 | 1 | 1 | 1 | 8 | 0 | 1 | 1 | 1 |
| 9 | 1 | 0 | 0 | 0 | 9 | 1 | 0 | 0 | 0 |
| 10 | 1 | 0 | 0 | 1 | 10 | 1 | 0 | 0 | 1 |
| 11 | 1 | 0 | 1 | 0 | 11 | 1 | 0 | 1 | 0 |
| 12 | 1 | 0 | 1 | 1 | 12 | 1 | 0 | 1 | 1 |
| 13 | 1 | 1 | 0 | 0 | 13 | 1 | 1 | 0 | 0 |
| 14 | 1 | 1 | 0 | 1 | 14 | 1 | 1 | 0 | 1 |
| 15 | 1 | 1 | 1 | 0 | 15 | 1 | 1 | 1 | 0 |
| 16 | 1 | 1 | 1 | 1 | 16 | 1 | 1 | 1 | 1 |
If k
Start=16 and k
Stop=1 situation, then the physical resource for HS-PDSCH will use spread spectrum coefficient SF=1.In addition, work as k
Start＞k
StopThe time, UE will think the Presence information mistake.
The time interval resource that Node B is distributed to the HS-PDSCH use of UE is the signaling bit x through the HS-SCCH transmission
Ts, 1, x
Ts, 2..., x
Ts, 5Notify, wherein, bit x
Ts, nIf the operating position of indication time slot n+1 is x
Ts, nBe set to 1, represent that then corresponding time slot n+1 is used to the transmission of HS-PDSCH.Otherwise, represent that this time slot is not used.The time slot of all uses all uses identical spreading code set.
According to the regulation of present TD-SCDMA agreement to the mapping method in HS-SCCh resource allocation information territory; There is a restrictive condition in Node B in the UE Resources allocation: all time slots of distributing to HS-PDSCH all must use identical spreading code set; If some code channel of a time slot is taken by other channel (DPCH, HS-SCCH etc.); Even it is occupied that the corresponding code channel of other time slot that then distributes does not have, said code channel can not be used for HS-PDSCH.This distribution method is except being easy to generate scrappy idle code channel; Also limited the flexibility that Node B is distributed employed time slot of HS-PDSCH and code channel; Simultaneously, also limit the employable maximum code channel number of HS-PDSCH, thereby limited the maximum downstream rate of HS-PDSCH.
Fig. 3 illustrates the HS-PDSCH resource allocation example according to the existing protocol regulation.As shown in Figure 3, suppose that current code channel resource situation is following: in all code channels of time slot 6, code channel 11 to 16 is taken by other business, and other code channel is idle; Time slot 3,4,5 is descending time slot and free time.In this case,, and distribute code channel number as much as possible,, the signaling bit x of HS-SCCH transmission is set then according to the mapping relations of table 1 if Node B wants that all distributing to HS-PDSCH to time slot 3,4,5,6 supplies UE to use
Ccs, 1, x
Ccs, 2, x
Ccs, 3, x
Ccs, 4And x
Ccs, 5, x
Ccs, 6, x
Ccs, 7, x
Ccs, 8, make k
Start=1 and k
Stop=10, and the signaling bit x of gap information is set
Ts, 1, x
Ts, 2..., x
Ts, 5, make x
Ts, 1Be 0, other bit is 1.In this case, the code channel 11 to 16 of time slot 3,4,5 can not be used by HS-PDSCH; Perhaps Node B also can be regardless of timing crack 6, only time slot 3,4,5 is distributed to HS-PDSCH and uses, and at this moment can be arranged so that k
Start=1 and k
Stop=16, but like this, the idle code channel of time slot 6 can not be distributed to HS-PDSCH, thereby has limited the maximum downstream rate of distributing to UE, and this is neither Node B desired.
To above-mentioned condition restriction; Node B is when distributing the resource of HS-PDSCH for UE; Can at first carry out the code channel adjustment through quick dynamic channel allocation (DCA), feasible that the idle code channel of the time slot that is assigned with is identical, thus can make full use of available code channel; But this adjustment has also increased burden to network simultaneously, and possibly influence the user who is using these code channels.
Therefore; A kind of mapping method of new HS-SCCH resource allocation information territory need be provided; Make Node B when UE distributes the HS-PDSCH resource; Need not be confined to distribute to all necessary restriction of using identical spreading code set of all time slots of HS-PDSCH, thereby the HSDPA system of TD-SCDMA can more effectively utilize available time slot and code channel resource.
Summary of the invention
To partly illustrate other aspect of the present invention and/or advantage in the following description, through describing, it can become clearer, perhaps can understand through embodiment of the present invention.
The object of the present invention is to provide the mapping method in HS-SCCH resource allocation information territory in a kind of TD-SCDMA system; Through said method; Make Node B when UE distributes the HS-PDSCH resource; Need not be confined to distribute to all necessary restriction of using identical spreading code set of all time slots of HS-PDSCH, thereby the HSDPA system of TD-SCDMA can more effectively utilize available time slot and code channel resource.
According to an aspect of the present invention, the mapping method in a kind of TD-SCDMA of being used for system HS-SCCH resource allocation information territory is provided, comprises step: the distribution condition of confirming current resource by node; Whether node is identical according to the idle code channel of each time slot that be user equipment allocation, and through HS-SCCH resource allocation information territory is set, correspondingly the employed spreading code set of time slot of HS-PDSCH is distributed in setting.
Said spreading code set is through initial code k
StartWith stop code k
StopConfirm k
StartBy the signaling bit x in the HS-SCCH resource allocation information territory
Ccs, 1, x
Ccs, 2, x
Ccs, 3, x
Ccs, 4Represent k
StopBy the signaling bit x in the HS-SCCH resource allocation information territory
Ccs, 5, x
Ccs, 6, x
Ccs, 7, x
Ccs, 8Represent that said is that each time slot of user equipment allocation is by the signaling bit x in the HS-SCCH resource allocation information territory
Ts, 1, x
Ts, 2..., x
Ts, 5Represent.
If the idle code channel of each time slot that is user equipment allocation is identical, then node makes all time slots of distributing to HS-PDSCH all use identical spreading code set through HS-SCCH resource allocation information territory is set.
If be the idle code channel difference of each time slot of user equipment allocation, then node is through being provided with HS-SCCH resource allocation information territory, and one of feasible time slot of distributing to HS-PDSCH uses the spreading code set different with other time slot.
If the idle code channel of each time slot that is user equipment allocation is identical, then node makes at k through HS-SCCH resource allocation information territory is set
StartBe less than or equal to k
StopSituation under, distribute to identical spreading code set that all time slots of HS-PDSCH use for from k
StartTo k
StopContinuous spreading codes, and comprise k
StartAnd k
StopBoth; At k
Start=16 and k
StopUnder=1 the situation, the physical resource of distributing to HS-PDSCH will use spread spectrum coefficient 1.
If the idle code channel of each time slot that is user equipment allocation is different, then node is through being provided with HS-SCCH resource allocation information territory, makes k
Start＞k
StopAnd eliminating k
Start=16 and k
Stop=1 situation, thus one of said time slot uses from 1 to k
StopSpreading code set, this spreading code set comprises 1 and k
StopBoth, other time slot uses from 1 to k
StartSpreading code set, this spreading code set comprises 1 and k
StartBoth.
If the idle code channel of each time slot that is user equipment allocation is different, then be characterised in that node through HS-SCCH resource allocation information territory is set, make k
Start＞k
StopAnd eliminating k
Start=16 and k
Stop=1 situation, thus one of said time slot uses from k
StopTo k
StartSpreading code set, this spreading code set comprises k
StopAnd k
StartBoth, other time slot uses from 1 to k
StartSpreading code set, this spreading code set comprises 1 and k
StartBoth.
If the idle code channel of each time slot that is user equipment allocation is different, then node is through being provided with HS-SCCH resource allocation information territory, makes k
Start＞k
StopAnd eliminating k
Start=16 and k
Stop=1 situation, thereby according to k
StartAnd k
StopDifferent odd even combined situation, at the signaling bit x through gap information
Ts, 1, x
Ts, 2..., x
Ts, 5Distribute in all time slots of UE, select a certain time slot, make the spreading code set of its use be different from the employed spreading code set of other distributed time slot.
Work as k
StartBe even number and k
StopDuring for even number, last time slot uses from 1 to k
StopSpreading code set, comprise 1 and k
StopBoth, other time slot uses from 1 to k
StartSpreading code set, comprise 1 and k
StartBoth.
Work as k
StartBe even number, k
StopBe odd number, and k
Start-k
Stop＞1 o'clock, the penult time slot used from 1 to k
Stop+ 1 spreading code set comprises 1 and k
Stop+ 1 both, other time slot uses from 1 to k
StartSpreading code set, comprise 1 and k
StartBoth; Work as k
Start=2 and k
Stop=1 o'clock, the penult time slot used from 1 to 2 spreading code set, and other time slot uses from 1 to 16 spreading code set.
Work as k
StartBe even number, k
StopFor greater than 1 odd number, and k
Start-k
Stop=1 o'clock, if there be the 5th time slot reciprocal, the 5th time slot then reciprocal used from 1 to k
Stop-1 spreading code set comprises 1 and k
Stop-1 both, other time slot uses from 1 to k
StartSpreading code set, comprise 1 and k
StartBoth; Otherwise UE will think the Presence information mistake.
Work as k
StartBe odd number and k
StopDuring for even number, if there be third from the bottom time slot, then third from the bottom time slot uses from 1 to k
StopSpreading code set, comprise 1 and k
StopBoth, other time slot uses from 1 to k
Start+ 1 spreading code set comprises 1 and k
Start+ 1 both; Otherwise UE will think the Presence information mistake.
Work as k
StartBe odd number and k
StopDuring for odd number, if there is a fourth from the last time slot, then a fourth from the last time slot uses from 1 to k
Stop+ 1 spreading code set comprises 1 and k
Stop+ 1 both, other time slot uses from 1 to k
Start+ 1 spreading code set comprises 1 and k
Start+ 1 both; Otherwise UE will think the Presence information mistake.
Description of drawings
Through the description of carrying out below in conjunction with accompanying drawing to embodiment, above-mentioned and/or other purpose of the present invention and advantage will become apparent, wherein:
Fig. 1 illustrates the relevant device of HSDPA in the TD-SCDMA system and the sketch map of physical channel;
Fig. 2 is the flow chart that schematically shows HSDPA workflow in the TD-SCDMA system;
Fig. 3 illustrates the HS-PDSCH resource allocation example according to the existing protocol regulation;
Fig. 4 is the flow chart that the mapping method that is used for TD-SCDMA system HS-SCCH resource allocation information territory according to an exemplary embodiment of the present invention is shown; And
Fig. 5 illustrates the HS-PDSCH resource allocation example according to the embodiment of the invention.
Embodiment
At present will be in detail with reference to embodiments of the invention, the example of said embodiment is shown in the drawings, and in whole accompanying drawing, identical label is represented identical parts all the time, will be through said embodiment is described with reference to accompanying drawing, so that explain the present invention.
Fig. 4 is the flow chart that the mapping method that is used for TD-SCDMA system HS-SCCH resource allocation information territory according to an exemplary embodiment of the present invention is shown.In method shown in Figure 4; At first; At step S101; Node B is used HS-PDSCH to all and is had the UE of data to assess at the Node B buffer memory according to information such as channel condition, buffer status, last transmitting time, uncompleted re-transmissions, confirms the code channel quantity and other parameter of distributing to certain UE.Then, at step S102, Node B is selected the different code channel methods of salary distribution according to the distribution condition of current resource.Particularly, if the idle code channel of each time slot that distributes for UE is identical, then select the method for salary distribution one; Processing proceeds to step S103; Wherein, HS-SCCH resource allocation information territory is set correspondingly, makes all time slots of distributing to HS-PDSCH all use identical spreading code set; Otherwise select the method for salary distribution two, handle and proceed to step S104, wherein, HS-SCCH resource allocation information territory is set correspondingly, make one of time slot of distributing to HS-PDSCH use the spreading code set different with other time slot.At step S105, Node B sends to UE with the HS-SCCH resource allocation information territory that is provided with, and UE receives the data that send to it according to the HS-SCCH information that receives on corresponding HS-PDSCH.
Below, with the HS-PDSCH resource allocation methods of describing in detail according to the embodiment of the invention.Wherein, Node B is the gap information signaling bit x of UE distributed time slot by the HS-SCCH transmission
Ts, 1, x
Ts, 2..., x
Ts, 5Notify, consistent with existing protocol, bit x
Ts, nIf the operating position of indication time slot n+1 is x
Ts, nBe set to 1, represent that then corresponding time slot n+1 is used to the transmission of HS-PDSCH.Otherwise, represent that this time slot is not used.
On the other hand, Node B is that the employed spreading code of HS-PDSCH distributed time slot is by initial code and stop code decision, initial code k
StartSignaling bit x by the HS-SCCH transmission
Ccs, 1, x
Ccs, 2, x
Ccs, 3, x
Ccs, 4Notify stop code k
StopSignaling bit x by the HS-SCCH transmission
Ccs, 5, x
Ccs, 6, x
Ccs, 7, x
Ccs, 8Notify, their mapping relations are as shown in table 1.
In step S102, selects the method for salary distribution for the moment owing to the idle code channel of each time slot that distributes for UE is identical when Node B, Node B is through being provided with the signaling bit x that HS-SCCH transmits
Ccs, 1, x
Ccs, 2, x
Ccs, 3, x
Ccs, 4And x
Ccs, 5, x
Ccs, 7, x
Ccs, 8, make k
Start＜k
StopPerhaps k
Start=k
StopThereby the time slot of all uses all uses identical spreading code set, that is, and and from k
StartTo k
StopContinuous spreading codes, and comprise k
StartAnd k
StopIn addition, if Node B is provided with k
Start=16 and k
Stop=1, then the physical resource for HS-PDSCH will use spread spectrum coefficient SF=1, and the above-mentioned method of salary distribution is consistent with existing protocol.
Perhaps, when Node B was selected the method for salary distribution two in step S102, Node B was provided with k
Start＞k
Stop(but do not comprise k
Start=16 and k
Stop=1 situation), and at the signaling bit x through gap information
Ts, 1, x
Ts, 2..., x
Ts, 5Distribute in all time slots of UE, select a time slot (for example, to be set to 1 x
Ts, nThe maximum time slot of middle n value, that is, employed last time slot), selected time slot uses from 1 to k
StopContinuous code channel, comprise 1 and k
Stop, and other time slot uses from 1 to k
StartContinuous code channel, comprise 1 and k
StartAs interchangeable mode, when Node B is provided with k
Start＞k
Stop(but do not comprise k
Start=16 and k
Stop=1 situation) time, selected time slot uses from k
StopTo k
StartContinuous code channel, comprise k
StopAnd k
Start, and other time slot uses from 1 to k
StartContinuous code channel, comprise 1 and k
StartIt should be noted that selected time slot is not limited to the maximum time slot of n value, but any one (for example, the time slot of n value minimum, that is, junior one time slot) in the time slot that can select to use.
Fig. 5 illustrates the HS-PDSCH resource allocation example according to the embodiment of the invention.Suppose that the code channel resource distribution condition is identical with Fig. 3; The mapping method that proposes according to the present invention; Make that the spreading code set of time slot 6 and other time slot allocation is different, the idle code channel of time slot 3,4,5,6 is all distributed to HS-PDSCH, thereby can make full use of available code channel resource.Particularly, Node B is selected the method for salary distribution two according to the distribution condition of resource, thereby according to the mapping relations of table 1, the signaling bit x of HS-SCCH transmission is set
Ccs, 1, x
Ccs, 2, x
Ccs, 3, x
Ccs, 4And x
Ccs, 5, x
Ccs, 6, x
Ccs, 7, x
Ccs, 8, make k
Start=16 and k
Stop=10, and gap information signaling bit x is set
Ts, 1, x
Ts, 2..., x
Ts, 5, make x
Ts, 1Be 0, other bit is 1, so just can be with code channel 1 to the 10 (k of time slot 6
Stop), and code channel 1 to the 16 (k of time slot 3,4,5
Start) all offer HS-PDSCH and use (shown in dash area among the figure), utilized idle code channel better thereby compare with Fig. 3.The distribution that it should be noted that idle code channel is not limited to above-mentioned situation, selectively, and also can be with the code channel 10 (k of time slot 6
Stop) to 16 (k
Start), and code channel 1 to the 16 (k of time slot 3,4,5
Start) all offer the HS-PDSCH use, utilized idle code channel better than method shown in Figure 3 equally.
Below describe the another kind of implementation of the method for salary distribution two, when Node B was selected the method for salary distribution two in step S102, Node B was provided with k
Start＞k
Stop(but do not comprise k
Start=16 and k
Stop=1 situation), and according to k
StartAnd k
StopDifferent odd even combined situation, at the signaling bit x through gap information
Ts, 1, x
Ts, 2..., x
Ts, 5Distribute in all time slots of UE, select a certain time slot, make the spreading code set of its use be different from the employed spreading code set of other distributed time slot.In this way, can be according to k
StartAnd k
StopParity come to dispose neatly the employed spreading code set of each time slot.
Below describe a kind of according to k
StartAnd k
StopThe parity concrete example of carrying out the HS-PDSCH resource allocation, wherein, considers that in the practical application, mostly code channel number distributed is even number, thereby following spreading code set is set, but the present invention is not limited to this.
1) works as k
StartBe even number and k
StopDuring for even number, at signaling bit x through gap information
Ts, 1, x
Ts, 2..., x
Ts, 5Distribute in all time slots of UE, selection is set to 1 x
Ts, nThe maximum time slot (that is, employed last time slot) of middle n value uses from 1 to k it
StopContinuous code channel, comprise 1 and k
Stop, and other time slot uses from 1 to k
StartContinuous code channel, comprise 1 and k
Start
2) work as k
StartBe even number, k
StopBe odd number, and k
Start-k
Stop＞1 o'clock, at signaling bit x through gap information
Ts, 1, x
Ts, 2..., x
Ts, 5Distribute in all time slots of UE, selection is set to 1 x
Ts, nThe middle second largest time slot (that is, the penult time slot) of n value uses from 1 to k it
Stop+ 1 continuous code channel comprises 1 and k
Stop+ 1, and other time slot uses from 1 to k
StartContinuous code channel, comprise 1 and k
StartEspecially, work as k
Start=2 and k
Stop=1 o'clock, the penult time slot used code channel 1 and 2, and other time slot uses code channel 1 to 16;
3) work as k
StartBe even number, k
StopBe odd number (k
Stop＞1), and k
Start-k
Stop=1 o'clock, at signaling bit x through gap information
Ts, 1, x
Ts, 2..., x
Ts, 5Distribute in all time slots of UE,, it is used from 1 to k if there be the 5th time slot reciprocal
Stop-1 continuous code channel comprises 1 and k
Stop-1, and other time slot uses from 1 to k
StartContinuous code channel, comprise 1 and k
StartOtherwise UE will think the Presence information mistake;
4) work as k
StartBe odd number and k
StopDuring for even number, at signaling bit x through gap information
Ts, 1, x
Ts, 2..., x
Ts, 5Distribute in all time slots of UE,, it is used from 1 to k if there be third from the bottom time slot
StopContinuous code channel, comprise 1 and k
Stop, and other time slot uses from 1 to k
Start+ 1 continuous code channel comprises 1 and k
Start+ 1; Otherwise UE will think the Presence information mistake;
5) work as k
StartBe odd number and k
StopDuring for odd number, at signaling bit x through gap information
Ts, 1, x
Ts, 2..., x
Ts, 5Distribute in all time slots of UE,, it is used from 1 to k if there is a fourth from the last time slot
Stop+ 1 continuous code channel comprises 1 and k
Stop+ 1, and other time slot uses from 1 to k
Start+ 1 continuous code channel comprises 1 and k
Start+ 1; Otherwise UE will think the Presence information mistake.
Should note: the method for salary distribution two according to the present invention is not limited to above each example.Those skilled in the art should be clear: the concrete condition that is selected for the time slot that distributes different code channels and the different code channels of each time slot allocation is not limited to provide in the above-mentioned example.Any according to k
StartAnd k
StopParity or other decision condition mode of carrying out the HS-PDSCH resource allocation all be feasible.
According to the mapping method that is used for TD-SCDMA system HS-SCCH resource allocation information territory of the present invention; Expanded the flexibility of TD-SCDMA system when distributing the HSDPA resource; Help making full use of resource, obtain higher downstream rate, simultaneously; Mapping method of the present invention and current agreement regulation compatibility help practical application.
Although illustrated and described some embodiments of the present invention; But those skilled in the art will be appreciated that: under the situation that does not break away from principle of the present invention and spirit; Can change these embodiments, wherein, scope of the present invention limits in claim.
Claims (8)
1. mapping method that is used for TD-SCDMA system HS-SCCH resource allocation information territory comprises step:
Confirm the distribution condition of current resource by node;
Node is provided with HS-SCCH resource allocation information territory according to the idle code channel for each time slot of user equipment allocation, so that the employed spreading code set of time slot of distributing to HS-PDSCH correspondingly to be set,
Wherein, if be the idle code channel difference of each time slot of user equipment allocation, then node is through being provided with HS-SCCH resource allocation information territory, and one of feasible time slot of distributing to HS-PDSCH uses the spreading code set different with other time slot.
2. the method for claim 1 is characterized in that said spreading code set is through initial code k
StartWith stop code k
StopConfirm k
StartBy the signaling bit x in the HS-SCCH resource allocation information territory
Ccs, 1, x
Ccs, 2, x
Ccs, 3, x
Ccs, 4Represent k
StopBy the signaling bit x in the HS-SCCH resource allocation information territory
Ccs, 5, x
Ccs, 6, x
Ccs, 7, x
Ccs, 8Represent that said is that each time slot of user equipment allocation is by the signaling bit x in the HS-SCCH resource allocation information territory
Ts, 1, x
Ts, 2..., x
Ts, 5Represent.
3. method as claimed in claim 2; It is characterized in that if for the idle code channel of each time slot of user equipment allocation identical; Then node makes all time slots of distributing to HS-PDSCH all use identical spreading code set through HS-SCCH resource allocation information territory is set.
4. method as claimed in claim 3 is characterized in that node through HS-SCCH resource allocation information territory is set, makes at k
StartBe less than or equal to k
StopSituation under, distribute to identical spreading code set that all time slots of HS-PDSCH use for from k
StartTo k
StopContinuous spreading codes, and comprise k
StartAnd k
StopBoth; At k
Start=16 and k
StopUnder=1 the situation, the physical resource of distributing to HS-PDSCH will use spread spectrum coefficient 1.
5. the method for claim 1 is characterized in that node through HS-SCCH resource allocation information territory is set, and makes k
Start＞k
StopAnd eliminating k
Start=16 and k
Stop=1 situation, thus one of said time slot uses from 1 to k
StopSpreading code set, this spreading code set comprises 1 and k
StopBoth, other time slot uses from 1 to k
StartSpreading code set, this spreading code set comprises 1 and k
StartBoth.
6. the method for claim 1 is characterized in that node through HS-SCCH resource allocation information territory is set, and makes k
Start＞k
StopAnd eliminating k
Start=16 and k
Stop=1 situation, thus one of said time slot uses from k
StopTo k
StartSpreading code set, this spreading code set comprises k
StopAnd k
StartBoth, other time slot uses from 1 to k
StartSpreading code set, this spreading code set comprises 1 and k
StartBoth.
7. the method for claim 1 is characterized in that node through HS-SCCH resource allocation information territory is set, and makes k
Start＞k
StopAnd eliminating k
Start=16 and k
Stop=1 situation, thereby according to k
StartAnd k
StopDifferent odd even combined situation, at the signaling bit x through gap information
Ts, 1, x
Ts, 2..., x
Ts, 5Distribute in all time slots of UE, select a certain time slot, make the spreading code set of its use be different from the employed spreading code set of other distributed time slot.
8. method as claimed in claim 7 is characterized in that:
Work as k
StartBe even number and k
StopDuring for even number, last time slot uses from 1 to k
StopSpreading code set, comprise 1 and k
StopBoth, other time slot uses from 1 to k
StartSpreading code set, comprise 1 and k
StartBoth;
Work as k
StartBe even number, k
StopBe odd number, and k
Start-k
Stop＞1 o'clock, the penult time slot used from 1 to k
Stop+ 1 spreading code set comprises 1 and k
Stop+ 1 both, other time slot uses from 1 to k
StartSpreading code set, comprise 1 and k
StartBoth; Work as k
Start=2 and k
Stop=1 o'clock, the penult time slot used from 1 to 2 spreading code set, and other time slot uses from 1 to 16 spreading code set;
Work as k
StartBe even number, k
StopFor greater than 1 odd number, and k
Start-k
Stop=1 o'clock, if there be the 5th time slot reciprocal, the 5th time slot then reciprocal used from 1 to k
Stop-1 spreading code set comprises 1 and k
Stop-1 both, other time slot uses from 1 to k
StartSpreading code set, comprise 1 and k
StartBoth; Otherwise UE will think the Presence information mistake;
Work as k
StartBe odd number and k
StopDuring for even number, if there be third from the bottom time slot, then third from the bottom time slot uses from 1 to k
StopSpreading code set, comprise 1 and k
StopBoth, other time slot uses from 1 to k
Start+ 1 spreading code set comprises 1 and k
Start+ 1 both; Otherwise UE will think the Presence information mistake; And
Work as k
StartBe odd number and k
StopDuring for odd number, if there is a fourth from the last time slot, then a fourth from the last time slot uses from 1 to k
Stop+ 1 spreading code set comprises 1 and k
Stop+ 1 both, other time slot uses from 1 to k
Start+ 1 spreading code set comprises 1 and k
Start+ 1 both; Otherwise UE will think the Presence information mistake.
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| CN102647791B (en) * | 2011-02-22 | 2015-05-27 | 华为技术有限公司 | Method and device for sending and receiving downlink control message |
| CN102724757B (en) * | 2011-03-30 | 2017-11-07 | 中兴通讯股份有限公司 | A kind of control channel information processing method and system |
| WO2014205835A1 (en) * | 2013-06-29 | 2014-12-31 | 华为技术有限公司 | Data transmission method, device and system |
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| CN1777331A (en) * | 2005-12-08 | 2006-05-24 | 中兴通讯股份有限公司 | Method for allocating channel code for high speed physcial down sharing channel |
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Non-Patent Citations (1)
| Title |
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| TSG RAN.Multiplexing and channel coding (TDD).《3gpp TS 25.222 v7.5.0》.2007,4.6.1.1.1和4.6.1.2.1. * |
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