CN101098294A - Carrier distribution method and apparatus for high speed downlink packet access technology - Google Patents
Carrier distribution method and apparatus for high speed downlink packet access technology Download PDFInfo
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- CN101098294A CN101098294A CNA2006100894298A CN200610089429A CN101098294A CN 101098294 A CN101098294 A CN 101098294A CN A2006100894298 A CNA2006100894298 A CN A2006100894298A CN 200610089429 A CN200610089429 A CN 200610089429A CN 101098294 A CN101098294 A CN 101098294A
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Abstract
The invention discloses a method for carrier distribution in high-speed descending chain group access technique, comprising that a base station NodeB selects carrier from a carrier group distributed for a user device UE, and distributes the carrier meeting preset condition to the UE. The invention also discloses a relative device.
Description
Technical field
The present invention relates to high speed downlink packet access technology, relate in particular to the method and apparatus of allocation of carriers in a kind of high speed downlink packet access technology.
Background technology
In order to adapt to the multimedia service needs growing to high speed data transfer, in order to improve user's peak-data transmission rate and throughput of system, 3-G (Generation Three mobile communication system) has been introduced high-speed downlink packet access (HSDPA, High Speed Downlink Package Access) technology.HSDPA introduces a high-speed downlink shared channel (HS-DSCH, High Speed Downlink SharedChannel), introduce a shared channel respectively in the physical layer uplink and downlink, promptly share information channel (HS-SICH, Shared Information Channel for HS-DSCH) and shared control channel (HS-SCCH, Shared Control Channel for HS-DSCH), directly finish the information interaction between subscriber equipment (UE, User Equipment) and base station (the Node B) fast.HS-DSCH mainly carries high speed business, and all business datums are all by the HS-DSCH channel bearing, and HS-SCCH is a physical channel, the control information that is used to carry all relevant bottoms, and HS-SICH is a physical channel, is used to feed back relevant uplink information.HS-SICH and HS-SCCH always occur in pairs, promptly for each HS-SCCH, all correspondingly have a HS-SICH associated.
In order to reduce the peak-to-average force ratio of UE transmitted power, the code channel number that UE can activate in an ascending time slot simultaneously can not surpass predefined value, and this predefined value is 2 at present.This shows that UE can only activate 2 code channels at most in an ascending time slot.If at certain Transmission Time Interval (TTI, Transmission Timing Interval), the time slot at the employed HS-SICH of UE place has had the code channel of 2 activation, then UE can not be by this HS-SICH to the control information of NodeB feeding back uplink, NodeB does not receive the feedback information of UE, can think that transmission block makes mistakes, and carry out data re-transmission, this meaningless data re-transmission can cause resource waste.
As can be seen, NodeB is carrying out resource allocation and when scheduling, owing to do not consider the influence of the restriction of up activated code channel to HS-SICH, and may cause unnecessary data to retransmit, and cause system resource waste.
Summary of the invention
In view of this, the invention provides the method and apparatus of allocation of carriers in a kind of high speed downlink packet access technology, the UE that has avoided the restriction owing to up activated code channel to cause can't pass through the HS-SICH feedback information, avoid NodeB that the UE unnecessary data is retransmitted, avoid resource waste.
The present invention includes:
The method of allocation of carriers in a kind of high speed downlink packet access technology comprises:
Base station node B is selected carrier wave from its carrier set for the user equipment (UE) distribution, will satisfy the allocation of carriers of the condition that pre-set and give UE.
Wherein, the described condition of pre-seting is: in the shared information channel HS-SICH of described carrier wave, have the HS-SICH of the activated code channel number of its place ascending time slot less than set point.
Wherein, described NodeB will satisfy the allocation of carriers of the condition of pre-seting and give UE, and its process comprises:
Pre-set condition if the A1l carrier wave satisfies, then go to steps A 12; Otherwise, go to steps A 14;
A12, NodeB give UE with described allocation of carriers, for this carrier wave is selected shared control channel HS-SCCH and HS-SICH;
A13, NodeB add l with the activated code channel number of described HS-SICH place ascending time slot;
A14, NodeB are labeled as selected mistake with described carrier wave, judge the carrier wave all selected mistake or whether for described UE distributes the carrier wave that has satisfied its demand whether in the described carrier set, if, the ending resource assigning process; Otherwise NodeB continues to select carrier wave from described carrier set.
Wherein, NodeB gives UE with the allocation of carriers that satisfies condition among the described step B, and its process comprises:
If the A21 carrier wave satisfies and to pre-set condition, then NodeB is labeled as selected mistake and available with described carrier wave, is that this carrier wave is selected HS-SCCH and HS-SICH, and the activated code channel number of described HS-SICH place ascending time slot is added 1; Otherwise NodeB is labeled as selected mistake with described carrier wave but is unavailable;
A22, judge in the described carrier set whether to also have the not carrier wave of selected mistake, if having, then NodeB continues to select carrier wave from described carrier set; Otherwise, go to steps A 23;
The number of A23, NodeB statistics available carrier wave is if the number of available carrier wave then goes to steps A 24 greater than the carrier number that UE needs; Otherwise, go to steps A 25;
A24, NodeB select the carrier wave of the required number of UE and corresponding HS-SCCH and HS-SICH to distribute to this user, the ending resource assigning process from available carrier wave;
A25, NodeB distribute to this UE, the ending resource assigning process with whole available carrier wave and corresponding HS-SCCH and HS-SICH.
Wherein, described NodeB is that the carrier wave that is distributed is selected HS-SCCH and HS-SICH, and its process comprises:
NodeB selects the HS-SICH of the activated code channel number minimum of its place ascending time slot, and and the HS-SCCH that is associated of described HS-SICH.
Wherein, NodeB selects the allocation of carriers of the required number of UE to give this user from available carrier wave in the described steps A 24, and its process comprises:
NodeB is the measured carrier wave of the preferential selective channel matter of this UE according to the channel quality information of this UE feedback.
The device of allocation of carriers in a kind of high speed downlink packet access technology comprises: carrier wave selected cell, judging unit, carrier assigning unit;
Described carrier wave selected cell, being used for from NodeB is the carrier set that UE distributes, and for UE selects carrier wave, the carrier wave of selecting is sent to judging unit;
Described judging unit is used to judge whether carrier wave that the carrier wave selected cell is selected satisfies pre-sets condition, and judged result is sent to carrier assigning unit;
Described carrier assigning unit is used for the result according to judging unit, distributes the carrier wave that satisfies the condition that pre-sets for UE.
Wherein, described carrier assigning unit comprises: carrier wave and channel-assignment unit, carrier processing unit and HS-SICH processing unit;
Described carrier wave and channel-assignment unit, be used to receive the judged result of judging unit, give UE with the allocation of carriers that satisfies the condition that pre-sets, for this carrier wave is selected HS-SCCH and HS-SICH, and the carrier information of described distribution sent to the carrier processing unit, the HS-SICH information of described selection is sent to the HS-SICH processing unit;
Described carrier processing unit is used for the carrier information that reception carrier and channel-assignment unit send, and this carrier wave of mark is selected mistake; Judge the carrier wave all selected mistake whether in the described carrier set, perhaps whether for described UE distributes the carrier number that has satisfied its demand, if then notify the carrier wave selected cell to stop to select carrier wave from described carrier set; Otherwise notice carrier wave selected cell continues to select carrier wave from described carrier set;
Described HS-SICH processing unit is used for the HS-SICH information that reception carrier and channel-assignment unit send, and the activated code channel number of described HS-SICH place ascending time slot is added 1.
Wherein, described carrier assigning unit comprises:
Mark carrier wave unit, carrier wave detecting unit, carrier wave and channel-assignment unit and HS-SICH processing unit;
Described mark carrier wave unit, be used to receive the judged result of judging unit, the carrier wave that satisfies the condition that pre-sets is labeled as selected mistake and available, for this carrier wave is selected HS-SCCH and HS-SICH, and described HS-SICH information sent to the HS-SICH processing unit, the carrier wave that does not satisfy the condition that pre-sets is labeled as selected mistake but unavailable;
Described carrier wave detecting unit is used for judging whether described carrier set also has the not carrier wave of selected mistake, if having, then notifies the carrier wave selected cell to continue to select carrier wave from described carrier set; Otherwise notice carrier wave selected cell stops to select carrier wave from described carrier set, and notice carrier wave and channel-assignment unit distributing carrier wave, HS-SCCH and HS-SICH;
Described carrier wave and channel-assignment unit, be used for behind the announcement information of receiving the carrier wave detecting unit, the number of statistics available carrier wave, if the number of available carrier wave is greater than the number of UE wanted carrier, then the carrier wave of the required number of selection UE and corresponding HS-SCCH and HS-SICH distribute to this user from available carrier wave; Otherwise, whole available carrier wave and corresponding HS-SCCH and HS-SICH are distributed to this UE;
Described HS-SICH processing unit is used to receive the HS-SICH information that mark carrier wave unit sends, and the activated code channel number of described HS-SICH place ascending time slot is added 1.
Wherein, the condition of pre-seting in the described judging unit is: in the HS-SICH of described carrier wave, have the HS-SICH of the activated code channel number of its place ascending time slot less than set point.
The invention has the beneficial effects as follows: NodeB is for the UE distributing carrier wave time, to judge whether described carrier wave satisfies the condition that pre-sets, and the allocation of carriers that only will satisfy the condition of pre-seting is given UE, thereby avoided because the UE that the restriction of up activated code channel causes can't pass through the HS-SICH feedback information, avoid NodeB that the UE unnecessary data is retransmitted, avoided resource waste.
Description of drawings
Fig. 1 is the method flow diagram of the embodiment of the invention 1.
Fig. 2 is the method flow diagram of the embodiment of the invention 2.
Fig. 3 is the method flow diagram of the embodiment of the invention 3.
Fig. 4 is the device schematic diagram of the embodiment of the invention 4.
Embodiment
The HSDPA technology is divided into single carrier HSDPA and multi-carrier HSDPA.In single carrier HSDPA, the downlink data of UE can only send on a carrier wave.System is each HS-SCCH set of UE configuration of using HSDPA, and each set comprises one or more HS-SCCH, and different UE can dispose identical HS-SCCH set.At any one Transmission Time Interval (TTI, TransmissionTiming Interval), each HS-SCCH can only carry the control information of a UE at most, promptly can only be used to dispatch a UE.In service process, UE needs each HS-SCCH in the real-time listening HS-SCCH set.In case UE detects certain HS-SCCH and has carried one's own schedule information, indicated High-Speed Physical Downlink Shared Channel (the HS-PDSCH of this HS-SCCH arrives, HighSpeed Physical Downlink Shared Channel) receive data, then with HS-SICH that this HS-SCCH is associated on the feeding back uplink control information.In order to reduce the power consumption that UE monitors HS-SCCH, NodeB must use same HS-SCCH to carry its control information when dispatching certain UE continuously.If UE detects certain HS-SCCH at certain TTI it is dispatched, at next TTI, UE only need monitor same HS-SCCH and get final product.
In order further to improve peak rate, introduced the notion of multi-carrier HSDPA, promptly allow on a plurality of carrier waves, to send data simultaneously to same UE.In multi-carrier HSDPA, need dispose a plurality of HS-SCCH set for UE, the resource that the HS-SCCH in each HS-SCCH set is responsible for dispatching a carrier wave.UE is identical with the situation of single carrier HSDPA with monitor method to the use of any one HS-SCCH set.
In the present invention, NodeB is when carrying out resource allocation with scheduling, no matter be single carrier HSDPA or multi-carrier HSDPA, all will consider the distribution of HS-SCCH simultaneously, guarantee that the activated code channel of HS-SICH associated therewith place ascending time slot is no more than the threshold value of permission.For certain UE that is scheduled, if for it distributes the resource of certain carrier wave, but can't find the HS-SCCH that satisfies above-mentioned condition, this scheduling just no longer distributes the resource of this carrier wave for it so.
Situation with single carrier HSDPA is an example below, method of the present invention is done further specifying.
If in an ascending time slot, the code channel number that allows to activate is N, and present standard is that N is 2.For the UE that uses HSDPA, NodeB can know the activation moments and the number of the code channel of each ascending time slot of this UE except that HS-SICH exactly, further can determine to use which HS-SCCH to transmit the Downlink Control Information of this UE.
Do further below in conjunction with 1 pair of this method of embodiment and to specify.
Referring to Fig. 1, the method for allocation of carriers in a kind of high speed downlink packet access technology comprises:
Step 101:
After NodeB has determined that the UE that is scheduled is UE1, will distribute 1 carrier wave, be carrier wave 1 for UE1.
Step 102:
NodeB determines that UE1 monitoring is used for scheduling carrier wave 1 and the set of all HS-SCCH of not taken by other UE, and its detailed process comprises:
When setting up the professional connection of HSDPA, NodeB will specify the HS-SCCH set of UE1 monitoring carrier wave 1, comprise in this HS-SCCH set: HS-SCCH_11, HS-SCCH_12 and HS-SCCH_13.
If at previous TTI, NodeB has distributed to UE1 with carrier wave 1, and comes scheduling carrier wave 1 by HS-SCCH_13, and then UE1 also will monitor HS-SCCH_13.At this moment, in the described HS-SCCH set, will have only HS-SCCH_13.
Step 103:
Determine the code channel activating number of the HS-SICH place ascending time slot related with described each HS-SCCH, its detailed process comprises:
When the service of foundation connects, radio network controller (RNC) can be notified NodeB, UE1 is in the position and the moment of the activated code channel of each ascending time slot, thereby NodeB can determine the code channel activating number of HS-SICH_11, HS-SICH_12 and HS-SICH_13 place ascending time slot.
The described operation of this step is carried out at time slot, if exist a plurality of HS-SICH to be positioned at the situation of same ascending time slot, also only needs to determine a numerical value at this ascending time slot.
Step 104:
Judge whether to exist HS-SICH, the number of the activated code channel of its place ascending time slot is less than set point N, N=2 in the present embodiment.If skip to step 105, otherwise skip to step 106.
Step 105:
NodeB distributes to UE1 with carrier wave 1, and is that carrier wave 1 is selected HS-SCCH and HS-SICH, and the activated code channel number of this HS-SICH place ascending time slot finishes this resource allocation process then less than N.Its detailed process comprises:
NodeB distributes to UE1 with carrier wave 1, if the HS-SICH_12 in the HS-SICH set and the code channel activating number of HS-SICH_13 place ascending time slot are all less than 2, related with them HS-SCCH_12 and the HS-SCCH_13 of being respectively, then NodeB is from HS-SCCH_12 and HS-SICH_12, or selects a pair of among HS-SCCH_13 and the HS-SICH_13 arbitrarily.If NodeB selects HS-SCCH_12 and HS-SICH_12, then the activated code channel number with HS-SICH_12 place ascending time slot adds 1.
Wherein, NodeB select HS-SCCH and HS-SICH method can also for:
If the code channel activating number of HS-SICH_12 place ascending time slot is 0, the code channel activating number of HS-SICH_13 place ascending time slot is 1, then NodeB selects the few HS-SICH_12 of code channel activating number, with corresponding HS-SCCH_12, and the activated code channel number of HS-SICH_12 place ascending time slot added 1.
If have only a HS-SCCH in the described HS-SCCH set, be HS-SCCH_13, the NodeB HS-SICH that can only use this HS-SCCH and be associated then, promptly HS-SCCH_13 and HS-SICH_13 come scheduling carrier wave 1.
Step 106:
NodeB can not distribute to UE1 with carrier wave 1, finishes this resource allocation process.
Embodiment 1 is mainly among the single carrier HSDPA, and NodeB is the method for this UE distributing carrier wave resource according to the activation moments and the number of the code channel of each ascending time slot of UE except that HS-SICH.Method of the present invention is equally applicable to the situation of multi-carrier HSDPA, and the situation with multi-carrier HSDPA is an example below, method of the present invention is done further specifying.
Embodiment 2, and referring to Fig. 2, the method for allocation of carriers in a kind of high speed downlink packet access technology comprises:
Step 201:
Behind the UE that NodeB has determined to be scheduled, will be this UE preassignment carrier wave, and set up the carrier set of this UE, its detailed process comprises:
NodeB determines the UE1 that is scheduled, for UE1 preassignment 4 carrier waves, be respectively: carrier wave 1, carrier wave 2, carrier wave 3 and carrier wave 4, and set up the carrier set 1 of UE1, described 4 carrier waves all belong to carrier set 1.Actual carrier wave for the UE1 distribution is selected from carrier set 1.
3 carrier waves of possible UE1 actual needs, but owing to exist control channel to select the possibility of failure, so NodeB is that the carrier number in the preallocated carrier set of UE1 can be greater than the needed carrier number of this UE1.
Step 202:
NodeB selects carrier wave in carrier set, being used to of determining that the described UE of being scheduled monitoring dispatched this carrier wave and the set of all HS-SCCH of not taken by other UE, and its detailed process comprises:
NodeB selects carrier wave 2 in 4 carrier waves of carrier set 1, determine that UE1 just in the set of all HS-SCCH of monitoring carrier wave 2, comprises in this HS-SCCH set: HS-SCCH_21, HS-SCCH_22 and HS-SCCH_23.
If at previous TTI, NodeB has distributed to UE1 with carrier wave 2, and comes scheduling carrier wave 2 by HS-SCCH_23, and then UE1 also will monitor HS-SCCH_23.At this moment, in the described HS-SCCH set, will have only HS-SCCH_23.
Step 203:
Determine the code channel activating number of the HS-SICH place ascending time slot related with described each HS-SCCH, its detailed process comprises:
When the service of foundation connects, radio network controller can be notified NodeB, UE1 is in the position and the moment of the activated code channel of each ascending time slot, thereby NodeB can determine the code channel activating number of HS-SICH_21, HS-SICH_22 and HS-SICH_23 place ascending time slot.
The described operation of this step is carried out at time slot, if exist a plurality of HS-SICH to be positioned at the situation of same ascending time slot, also only needs to determine a numerical value at this ascending time slot.
Step 204:
Judge whether to exist HS-SICH, the number of the activated code channel of its place ascending time slot is less than set point N, N=2 in the present embodiment.If skip to step 205, otherwise skip to step 206.
Step 205:
NodeB gives described UE with described allocation of carriers, and selects HS-SCCH and HS-SICH, and the activated code channel number of this HS-SICH place ascending time slot is less than N, and the activated code channel number of described HS-SICH place ascending time slot is added 1.Its detailed process comprises:
NodeB distributes to UE1 with carrier wave 2, if the code channel activating number of HS-SICH_22 and HS-SICH_23 place ascending time slot all less than 2, then NodeB is from HS-SCCH_22 and HS-SICH_22, or selects a pair of among HS-SCCH_23 and the HS-SICH_23 arbitrarily.If NodeB selects HS-SCCH_22 and HS-SICH_22, then the activated code channel number with HS-SICH_22 place ascending time slot adds 1.
Wherein, NodeB select HS-SCCH method can also for:
If the code channel activating number of HS-SICH_22 place ascending time slot is 0, the code channel activating number of HS-SICH_23 place ascending time slot is 1, then NodeB selects the few HS-SICH_22 of code channel activating number, with corresponding HS-SCCH_22, the activated code channel number of HS-SICH_22 place ascending time slot is added 1.
If have only a HS-SCCH in the described HS-SCCH set, be HS-SCCH_23, the NodeB HS-SICH that can only use this HS-SCCH and be associated then, promptly HS-SCCH_23 and HS-SICH_23 come scheduling carrier wave 2.
Step 206:
NodeB does not distribute the resource of this carrier wave for this UE, its detailed process is: NodeB is not UE1 distributing carrier wave 2.
Step 207:
This carrier wave is labeled as the carrier wave of selected mistake, and its detailed process is: for carrier wave 2 is provided with the mode bit of 1 bit, the value of this bit is put 1, the selected mistake of expression carrier wave 2; Also have carrier wave 1, carrier wave 3 and carrier wave 4 also not selected mistake in the carrier set 1 this moment, so their mode bit is put 0.
With carrier wave be labeled as selected mistake method can also for: carrier wave 2 is deleted from carrier set, and the carrier wave 1 in the carrier set, carrier wave 3 and carrier wave 4 are exactly the carrier wave of selected mistake not.
Step 208:
NodeB judges all carrier waves selected mistake whether in the carrier set, promptly in the carrier set 1 whether the mode bit of all carrier waves all put 1, perhaps distributed the carrier wave that satisfies its demand for UE.If the resource allocation process that is indicated as this UE is finished, and goes to step 209; Otherwise, go to step 202, proceed the assigning process of other carrier wave.
NodeB judges all carrier waves selected mistake whether in the carrier set, its method can also for: judge whether also have carrier wave in the carrier set.
Step 209:
Finish this resource allocation process.
In embodiment 2, NodeB carries out analysis and judgement one by one to the carrier wave in the preallocated carrier set, distributes to UE then one by one.
In actual conditions, also can all carry out analysis and judgement to the carrier wave in the preallocated carrier set, if the carrier number M2 that the carrier number M1 that discovery satisfies condition needs greater than UE then can select M2 allocation of carriers to give this user from M1 according to certain principle.If the carrier number M2 that the carrier number M1 that satisfies condition needs less than UE then gives this UE with whole M1 allocation of carriers.
Do further below in conjunction with 3 pairs of these methods of embodiment and to specify.
Referring to Fig. 3, the method for allocation of carriers in a kind of high speed downlink packet access technology comprises:
Step 301:
Behind the UE that NodeB has determined to be scheduled, will be this UE preassignment carrier wave, and set up the carrier set of this UE, its detailed process is identical with the described detailed process of the step 201 of embodiment 2, here no longer repeat specification.
Step 302:
NodeB selects carrier wave in carrier set, being used to of determining that the described UE of being scheduled monitoring dispatched this carrier wave and the set of all HS-SCCH of not taken by other UE, its detailed process is identical with the described detailed process of the step 202 of embodiment 2, here no longer repeat specification.
Step 303:
Determine the code channel activating number of the HS-SICH place ascending time slot related with described each HS-SCCH, its detailed process is identical with the described detailed process of the step 203 of embodiment 2, here no longer repeat specification.
Step 304:
Judge whether to exist HS-SICH, the number of the activated code channel of its place ascending time slot is less than set point N, N=2 in the present embodiment.If skip to step 305, otherwise skip to step 306.
Step 305:
NodeB is labeled as available carrier wave with this carrier wave, and the selected mistake of this carrier wave of mark, and its detailed process is: for carrier wave 2 is provided with the mode bit of 2 bits, 2 bits are put 11, the selected mistake of expression carrier wave 2, and available; Also have carrier wave 1, carrier wave 3 and carrier wave 4 also not selected mistake in the carrier set 1 this moment, so their mode bit is put 00.
Carrier wave is labeled as available carrier wave, and mark this carrier wave the method for selected mistake can also be the mode bit that 1 bit is set for carrier wave 2, when the selected mistake of carrier wave 2, but and the time spent, then this bit put 1, carrier wave 1 in the carrier set, carrier wave 3 and carrier wave 4 all are the carrier waves of selected mistake not, and their mode bit all puts 0.
Be that this carrier wave selects HS-SCCH and HS-SICH, the activated code channel number of described HS-SICH place ascending time slot is added 1.
Step 306:
NodeB is labeled as unavailable carrier wave with this carrier wave, and the selected mistake of this carrier wave of mark, and its detailed process is: for carrier wave 2 is provided with the mode bit of 2 bits, 2 bits are put 10, the selected mistake of expression carrier wave 2, but unavailable; Also have carrier wave 1, carrier wave 3 and carrier wave 4 also not selected mistake in the carrier set 1 this moment, so their mode bit is put 00.
Carrier wave is labeled as unavailable carrier wave, and this carrier wave of mark selected mistake method can also for: for carrier wave 2 is provided with the mode bit of 1 bit,, but when unavailable, carrier wave 2 is deleted from carrier set when the selected mistake of carrier wave 2; Carrier wave 1 in the carrier set, carrier wave 3 and carrier wave 4 all are the carrier waves of selected mistake not, and their mode bit all puts 0.
Step 307:
NodeB judges in the carrier set whether also have the not carrier wave of selected mistake, promptly whether also has the carrier wave of its state position 00 in the carrier set 1, if having, then goes to step 302; Otherwise, go to step 308.
NodeB judge in the carrier set whether also have the carrier wave of selected mistake not method can also for: judge the carrier wave that whether has its state position 0 in the carrier set 1.
Step 308:
NodeB adds up the number of available carrier wave, promptly adds up the number of the carrier wave of its state position 11 in the carrier set.
The number of NodeB statistics available carrier wave, its method can also be: the number of the carrier wave of its state position 1 in the statistics carrier set.
Step 309:
If the carrier number that the number of available carrier wave needs greater than UE, then execution in step 310; Otherwise, execution in step 311.
Step 310:
NodeB selects the carrier wave of the required number of UE and corresponding HS-SCCH and HS-SICH to distribute to this user from available carrier wave.
Wherein, NodeB can be the measured carrier wave of the preferential selective channel matter of this UE according to the channel quality information of this UE feedback when selecting carrier wave for UE, and its detailed process comprises:
If NodeB knows that according to the channel quality information of UE1 feedback channel quality channel quality best, carrier wave 4 the channel quality poor slightly, carrier wave 1 of carrier wave 2 is the poorest, then NodeB will preferentially distribute to UE1 with carrier wave 2 and carrier wave 4.
Step 311:
NodeB distributes to this UE with whole available carrier wave and corresponding HS-SCCH and HS-SICH.
Based on said method, the present invention is directed to the situation of multi-carrier HSDPA, control channel assigned unit in a kind of high speed downlink packet access technology has been proposed, do further specifying below in conjunction with 4 pairs of these devices of embodiment.
Referring to Fig. 4, the device of allocation of carriers in a kind of high speed downlink packet access technology comprises: carrier wave selected cell 401, judging unit 402, carrier assigning unit 403.
Carrier wave selected cell 401 is the carrier set of UE distribution from NodeB, is that UE selects carrier wave, and the carrier wave of selecting is sent to judging unit 402.Judging unit 402 is judged whether carrier wave that the carrier wave selected cell is selected satisfies and is pre-seted condition, judged result is sent to carrier assigning unit 403.Carrier assigning unit 403 is distributed the carrier wave that satisfies the condition that pre-sets according to the result of judging unit for UE.
Wherein, the condition of pre-seting in the described judging unit is: in the HS-SICH of the described carrier wave of scheduling, have the HS-SICH of the activated code channel number of its place ascending time slot less than set point.
Wherein, carrier assigning unit 403 can comprise: carrier wave and channel-assignment unit, carrier processing unit and HS-SICH processing unit.
After carrier wave and channel-assignment unit receive the judged result of judging unit 402, give UE with the allocation of carriers that satisfies the condition that pre-sets, for this carrier wave is selected HS-SCCH and HS-SICH, and the carrier information of described distribution sent to the carrier processing unit, the HS-SICH information of described selection is sent to the HS-SICH processing unit.
After the carrier processing unit received the carrier information of carrier wave and channel-assignment unit transmission, this carrier wave of mark was selected mistake; Judge the carrier wave all selected mistake whether in the described carrier set, perhaps whether for described UE distributes the carrier number that has satisfied its demand, if then notify carrier wave selected cell 401 to stop to select carrier wave from described carrier set; Otherwise notice carrier wave selected cell 401 continues to select carrier wave from described carrier set.
Described HS-SICH processing unit receives the HS-SICH information that carrier wave and channel-assignment unit send, and the activated code channel number of described HS-SICH place ascending time slot is added 1.
After mark carrier wave unit receives the judged result of judging unit 402, the carrier wave that satisfies the condition that pre-sets is labeled as selected mistake and available,, and described HS-SICH information is sent to the HS-SICH processing unit for this carrier wave is selected HS-SCCH and HS-SICH; The carrier wave that does not satisfy the condition that pre-sets is labeled as selected mistake but unavailable.
The carrier wave detecting unit judges in the described carrier set whether also have the not carrier wave of selected mistake, if having, then notifies carrier wave selected cell 401 to continue to select carrier wave from described carrier set; Otherwise notice carrier wave selected cell 401 stops to select carrier wave from described carrier set, and notice carrier wave and channel-assignment unit distributing carrier wave, HS-SCCH and HS-SICH.
Carrier wave and channel-assignment unit are behind the announcement information of receiving the carrier wave detecting unit, number with the statistics available carrier wave, if the number of available carrier wave is greater than the number of UE wanted carrier, then the carrier wave of the required number of selection UE and corresponding HS-SCCH and HS-SICH distribute to this user from available carrier wave; Otherwise, whole available carrier wave and corresponding HS-SCCH and HS-SICH are distributed to this UE.
Described HS-SICH processing unit is used to receive the HS-SICH information that mark carrier wave unit sends, and the activated code channel number of described HS-SICH place ascending time slot is added 1.
Above-described embodiment only is preferred embodiment of the present invention, and is in order to restriction the present invention, within the spirit and principles in the present invention not all, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1, the method for allocation of carriers in a kind of high speed downlink packet access technology is characterized in that, comprising:
Base station node B is selected carrier wave from its carrier set for the user equipment (UE) distribution, will satisfy the allocation of carriers of the condition that pre-set and give UE.
2, method according to claim 1 is characterized in that, the described condition of pre-seting is: in the shared information channel HS-SICH of described carrier wave, have the HS-SICH of the activated code channel number of its place ascending time slot less than set point.
3, method according to claim 1 is characterized in that, described NodeB will satisfy the allocation of carriers of the condition of pre-seting and give UE, and its process comprises:
Pre-set condition if the A11 carrier wave satisfies, then go to steps A 12; Otherwise, go to steps A 14;
A12, NodeB give UE with described allocation of carriers, for this carrier wave is selected shared control channel HS-SCCH and HS-SICH;
A13, NodeB add 1 with the activated code channel number of described HS-SICH place ascending time slot;
A14, NodeB are labeled as selected mistake with described carrier wave, judge the carrier wave all selected mistake or whether for described UE distributes the carrier wave that has satisfied its demand whether in the described carrier set, if, the ending resource assigning process; Otherwise NodeB continues to select carrier wave from described carrier set.
4, method according to claim 1 is characterized in that, NodeB gives UE with the allocation of carriers that satisfies condition among the described step B, and its process comprises:
If the A21 carrier wave satisfies and to pre-set condition, then NodeB is labeled as selected mistake and available with described carrier wave, is that this carrier wave is selected HS-SCCH and HS-SICH, and the activated code channel number of described HS-SICH place ascending time slot is added 1; Otherwise NodeB is labeled as selected mistake with described carrier wave but is unavailable;
A22, judge in the described carrier set whether to also have the not carrier wave of selected mistake, if having, then NodeB continues to select carrier wave from described carrier set; Otherwise, go to steps A 23;
The number of A23, NodeB statistics available carrier wave is if the number of available carrier wave then goes to steps A 24 greater than the carrier number that UE needs; Otherwise, go to steps A 25;
A24, NodeB select the carrier wave of the required number of UE and corresponding HS-SCCH and HS-SICH to distribute to this user, the ending resource assigning process from available carrier wave;
A25, NodeB distribute to this UE, the ending resource assigning process with whole available carrier wave and corresponding HS-SCCH and HS-SICH.
According to claim 3 or 4 described methods, it is characterized in that 5, described NodeB is that the carrier wave that is distributed is selected HS-SCCH and HS-SICH, its process comprises:
NodeB selects the HS-SICH of the activated code channel number minimum of its place ascending time slot, and and the HS-SCCH that is associated of described HS-SICH.
6, method according to claim 4 is characterized in that, NodeB selects the allocation of carriers of the required number of UE to give this user from available carrier wave in the described steps A 24, and its process comprises:
NodeB is the measured carrier wave of the preferential selective channel matter of this UE according to the channel quality information of this UE feedback.
7, the device of allocation of carriers in a kind of high speed downlink packet access technology is characterized in that, comprising: carrier wave selected cell, judging unit, carrier assigning unit;
Described carrier wave selected cell, being used for from NodeB is the carrier set that UE distributes, and for UE selects carrier wave, the carrier wave of selecting is sent to judging unit;
Described judging unit is used to judge whether carrier wave that the carrier wave selected cell is selected satisfies pre-sets condition, and judged result is sent to carrier assigning unit;
Described carrier assigning unit is used for the result according to judging unit, distributes the carrier wave that satisfies the condition that pre-sets for UE.
8, device according to claim 7 is characterized in that, described carrier assigning unit comprises: carrier wave and channel-assignment unit, carrier processing unit and HS-SICH processing unit;
Described carrier wave and channel-assignment unit, be used to receive the judged result of judging unit, give UE with the allocation of carriers that satisfies the condition that pre-sets, for this carrier wave is selected HS-SCCH and HS-SICH, and the carrier information of described distribution sent to the carrier processing unit, the HS-SICH information of described selection is sent to the HS-SICH processing unit;
Described carrier processing unit is used for the carrier information that reception carrier and channel-assignment unit send, and this carrier wave of mark is selected mistake; Judge the carrier wave all selected mistake whether in the described carrier set, perhaps whether for described UE distributes the carrier number that has satisfied its demand, if then notify the carrier wave selected cell to stop to select carrier wave from described carrier set; Otherwise notice carrier wave selected cell continues to select carrier wave from described carrier set;
Described HS-SICH processing unit is used for the HS-SICH information that reception carrier and channel-assignment unit send, and the activated code channel number of described HS-SICH place ascending time slot is added 1.
9, device according to claim 7 is characterized in that, described carrier assigning unit comprises:
Mark carrier wave unit, carrier wave detecting unit, carrier wave and channel-assignment unit and HS-SICH processing unit;
Described mark carrier wave unit, be used to receive the judged result of judging unit, the carrier wave that satisfies the condition that pre-sets is labeled as selected mistake and available, for this carrier wave is selected HS-SCCH and HS-SICH, and described HS-SICH information sent to the HS-SICH processing unit, the carrier wave that does not satisfy the condition that pre-sets is labeled as selected mistake but unavailable;
Described carrier wave detecting unit is used for judging whether described carrier set also has the not carrier wave of selected mistake, if having, then notifies the carrier wave selected cell to continue to select carrier wave from described carrier set; Otherwise notice carrier wave selected cell stops to select carrier wave from described carrier set, and notice carrier wave and channel-assignment unit distributing carrier wave, HS-SCCH and HS-SICH;
Described carrier wave and channel-assignment unit, be used for behind the announcement information of receiving the carrier wave detecting unit, the number of statistics available carrier wave, if the number of available carrier wave is greater than the number of UE wanted carrier, then the carrier wave of the required number of selection UE and corresponding HS-SCCH and HS-SICH distribute to this user from available carrier wave; Otherwise, whole available carrier wave and corresponding HS-SCCH and HS-SICH are distributed to this UE;
Described HS-SICH processing unit is used to receive the only HS-SICH information that sends of unit of mark carrier wave, and the activated code channel number of described HS-SICH place ascending time slot is added 1.
10, device according to claim 7 is characterized in that, the condition of pre-seting in the described judging unit is: in the HS-SICH of described carrier wave, have the HS-SICH of the activated code channel number of its place ascending time slot less than set point.
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