CN1734980A - Switching method for transmitting channel format indication state in high-speed upline packet access - Google Patents
Switching method for transmitting channel format indication state in high-speed upline packet access Download PDFInfo
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- CN1734980A CN1734980A CN 200410059149 CN200410059149A CN1734980A CN 1734980 A CN1734980 A CN 1734980A CN 200410059149 CN200410059149 CN 200410059149 CN 200410059149 A CN200410059149 A CN 200410059149A CN 1734980 A CN1734980 A CN 1734980A
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Abstract
This invention discloses a state conversion method for channel format index in high-speed upper grouping access to decrease time delay in communication. Wherein, when the transmission time interval is 10ms, decreasing parameters of Te, notify and Te, L1_proc in TFI; when the transmission time interval is 2ms, decreasing parameters of Xe, Ye, Ze, Te, notify and Te, L1_proc in TFI; thereby, it decreases the time delay in TFI state conversion and adjusts transmission speed more quickly according to channel quality.
Description
Technical field
The present invention relates to communication technical field, relate in particular to the conversion method of transmission channel format indicating status in a kind of high speed uplink packet access.
Background technology
In the Release of 3GPP 6 versions, increase a up enhancing channel (HSUPA), to support bigger up channel throughput.Adopted three kinds of enhancement techniques to improve up throughput among the HSUPA: NodeB Scheduling, HARQ and shorter TTI.
In Rel99, data rate control to the up transmission of user terminal (UE) is mainly realized by radio network controller (RNC), its advantage is the major control body of RNC as network, can load than the integral body of more comprehensive consideration network, thus more rational Resources allocation.During such as soft handover, a UE may carry out communication with a plurality of NodeB, as shown in Figure 1.If by NodeB the available resources of UE are made a strategic decision, then the result of decision of each NodeB may be different, cause the interference of some sub-district excessive.And by RNC decision-making, because RNC knows the load condition that each sub-district is present, so can avoid the above-mentioned even situation appearance that cause this sub-district stop up excessive to certain area interference.But the shortcoming of RNC decision-making is to cause time-delay bigger, well the situation of match channels owing to will pass through this intermediate link of NodeB.May find that such as RNC the present channel situation of certain UE is better, improve the speed of emission data, but when the order of RNC arrived UE, the channel situation of this UE is variation, causes the unreasonable of resource distribution so wish this UE.NodeB Scheduling will transfer to NodeB to the decision-making power to physical layer resources by RNC.Can significantly reduce the time-delay of control signaling like this, the variation of fast adaptation channel, thereby more efficient use resource, the throughput of raising upstream data.May cause some cell uplink to disturb excessive problem by NodeB control during as for soft handover, each communication producer has proposed a lot of solutions, is still waiting further discussion, to make optimum selection.
In Rel99, the re-transmission of misdata bag realizes that at rlc layer time-delay is very big like this.Utilization mixing (HARQ) technology that retransmits is implemented in the quick re-transmission between NodeB and UE in HSUPA.
About corresponding down transformat combination (TFC) the state exchange scheme that strengthens data transmission channel (E-DCH) of HSUPA, also there is not too many discussion now.But everybody agrees that substantially the TFC state exchange scheme based on DCH among original Rel99 designs the TFI state exchange scheme of E-DCH.Among the Rel99 about the TFC state exchange scheme of DCH channel as shown in Figure 2.
Be located at the interior UE of nearest Transmission Time Interval (TTI) with transformat channel format combination (TFC
i) sending data, UE continuous Y average transmit power of measuring in the interval (measurement is spaced apart a time slot) in the past is P
i, so can be according to the TFC that will change
jAnd TFC
iThe difference of data rate, if estimate UE with TFC according to certain algorithm
iSend data, reach the certain communication quality, need great power P
j
According to above-mentioned thinking, if for certain TFC, measure in the interval for continuous in the past Y, X required at interval power is arranged all greater than the maximum UE transmitting power, think that then this TFC meets EliminationCriterion, this TFC is transferred to overpower state (Excess-PowerState) by status of support (Supported State); And at T
NotifyInterior notice is high-rise.
As shown in Figure 3, establish certain UE from the continuous constantly (T of t1
Notify+ T
Modify+ TL
1_proc) in all be in Excess-Power State, then think that from t2 next maximum TTI t3 constantly this TFC meets Blocking Criterion, this TFC is changed over to blocked state (Blocked State).
When required transmitting power is all less than the maximum UE transmitting power in continuous in the past Z the measurement at interval of certain TFC, think that this TFC meets Recovery Criterion, this TFC is transferred to Supported State by Excess-Power State or Blocked State; And at T
NotifyInterior notice is high-rise.
Each parameter is as follows among the Rel99:
| X | Y | Z | T notify | T L1_proc |
| 15Slots | 30Slots | 30Slots | 15ms | 15ms |
T
Modify=max (T
Adapt_max, T
TTI)=max (max (T
Adapt_1, T
Adapt_2T
Adapt_n), T
TTI) T wherein
Adapt_iBe that i logic channel adjustment issues the required time of data rate.It is just no longer suitable that prior art is applied to some parameter of HSUPA.Especially when the TTI=2ms of HSUPA, above-mentioned parameter will bring very big unnecessary time-delay, thereby can not reach the original intention that HSUPA wishes the fast adaptation channel variation.In Rel99,, do not need to consider the problem of power division in addition because have only a DCH; And in Rel6, possible DCH and E-DCH coexistence are with regard to the problem of needs consideration power division.This also is to replenish perfect place to prior art.
Summary of the invention
The invention provides transmission channel format indicating status conversion method in a kind of high speed uplink packet access, to reduce the time-delay in the communication.
Realize that technical scheme of the present invention is as follows:
Transmission channel format indicating status conversion method during a kind of high speed uplink packet inserts, the Transmission Time Interval (TTI) that this transmission channel format indication (TFI) place strengthens data transmission channel (E-DCH) is 10ms; This method is assessed each TFI in the TFI set of E-DCH continuously by the MAC layer of user terminal, and presses commentary and estimate the result and change the TFI state:
(1) if belong to 15 maximum transmission power that the needed transmitting power of time slot all can be assigned to greater than E-DCH of surpassing is arranged in continuous in the past 30 time slots of the TFI of status of support (Supported State), then this TFI is transformed into overpower state (Excess-Power State), and at the T that detects after meeting switch condition
E, notifyNotice is high-rise in time;
(2) TFI is from entering the overpower state, if at continuous T
E, notify+ T
E, modify+ T
E, L1_procAll be in the overpower state in time, then this TFI be transformed into blocked state (Blocked State);
(3) if be in the maximum transmission power that the interior required transmitting power of TFI continuous 30 time slots in the past of overpower state or blocked state all can be assigned to less than E-DCH, then this TFI is transformed into status of support, and at the T that detects after meeting switch condition
E, notifyNotice is high-rise in time; And T
E, notify=10ms, T
E, L1_proc=10ms, T
E, modifyBe professional adaptation time.
Transmission channel format indicating status conversion method during a kind of high speed uplink packet inserts, the Transmission Time Interval (TTI) that this transmission channel format indication (TFI) place strengthens data transmission channel (E-DCH) is 2ms; This method is assessed each TFI in the TFI set of E-DCH continuously by the MAC layer of user terminal, and presses commentary and estimate the result and change the TFI state:
(1) if belong to 3 transmitting powers that the needed transmitting power of time slot all can be assigned to greater than E-DCH of surpassing is arranged in continuous in the past 6 time slots of the TFI of status of support (Supported State), then this TFI is transformed into overpower state (Excess-Power State), and at the T that detects after meeting switch condition
E, notifyNotice is high-rise in time;
(2) TFI is from entering the overpower state, if at continuous T
E, notify+ T
E, modify+ T
E, L1_procAll be in the overpower state in time, then this TFI be transformed into blocked state (Blocked State);
(3) if be in the transmitting power that the interior required transmitting power of TFI continuous 6 time slots in the past of overpower state or blocked state all can be assigned to less than E-DCH, then this TFI is transformed into status of support, and at the T that detects after meeting switch condition
E, notifyNotice is high-rise in time; And T
E, notify=2ms, T
E, L1_proc=2ms, T
E, modifyBe professional adaptation time.
At first guarantee dedicated channel (DCH) emission power demand during the TFI conversion.
The present invention has following beneficial effect:
1, the time-delay in the communication, wherein X have been reduced
e, Y
e, Z
eThe time-delay of TFI state exchange can be reduced, the speed of data can be sent faster according to the channel quality adjustment; T
E, notifyAnd T
E, L1_procMinimizing can reduce of the time-delay of UE physical layer to high level feedback physical layer transmission ability, make high level adjust the speed that each logic channel issues data according to the physical layer transmission ability faster.
2, solved behind the newly-increased E-DCH and the compatibility issue of original system, the professional transmission QoS requirement when satisfying two channel coexistences of DCH and E-DCH preferably.
Description of drawings
Fig. 1 is Rel99 control structure figure in the prior art;
Fig. 2 is a TFC state exchange schematic diagram in the prior art;
Fig. 3 is the schematic diagram of TFC from the overpower state exchange to blocked state in the prior art;
Fig. 4 A, 4B are TFC state exchange schematic diagram among the present invention.
Embodiment
The present invention mainly is at some characteristics that strengthen data transmission channel (E-DCH), makes improvements aspect the time parameter of E-DCH state exchange and power division two on the basis of Rel99.
Time parameter provided by the invention is as follows:
| X e | Y e | Z e | T e，notify | T e，L1_proc | |
| TTI＝10ms | 15Slots | 30Slots | 30Slots | 10ms | 10ms |
| TTI＝2ms | 3Slots | 6Slots | 6Slots | 2ms | 2ms |
T
modify＝max(T
adapt_max，T
TTI)＝max(max(T
adapt_1，T
adapt_2…T
adapt_n)，T
TTI)。
Because being each TTI, the TFI of up emission changes once, so change-over time unit is the TTI of corresponding transmission channel.Simultaneously measure the influence of inaccurate or channel estimation errors etc. in order to eliminate transmitting power, need one suitable level and smooth, Here it is Y and Z elects the reason of the TTI of twice as.
T
E, modifyBe called professional adaptation time.It is meant in the communication that certain business carries out speed and adjust the needed time for adapting to the physical channel transmittability.Such as the AMR speech business multiple speed being arranged, is example with 7.95K and 12.2K, when the channel quality variation, might the source encoding module need be adjusted into 7.95K from 12.2K, adjusts the adaptation time that the needed time just is called this AMR business.Different business has different adaptation times, is professional a kind of attribute, and is immutable.So this parameter still keeps identical with Rel99 in HSUPA.
Consult Fig. 4 A, the state conversion process of E-DCH is as follows when TTI is 10ms:
The MAC layer of user terminal (UE) is assessed each TFI in the TFI of the E-DCH set continuously, and presses commentary and estimate the result and change the TFI state:
If 1 certain TFI belonged to Supported State originally, and continuous in the past Y
eIn=30 time slots, have above X
e=15 time slot desired power think then that all greater than (UE maximum transmission power-DCH transmitting power) this TFI has met Elimination Criterion, is transformed into Excess-PowerState to this TFI.The MAC layer of UE should be at the T that detects after this TFI meets Elimination Criterion simultaneously
E, notifyNotice is high-rise in the=10ms, so that high-rise the adjustment issues the speed of data and data rate that physical layer can be transmitted is complementary;
2, certain TFI is from entering Excess-Power State, if at continuous (T
E, notify+ T
E, modify+ T
E, L1_proc)=(10ms+T
E, modify+ all be in Excess-Power State in 10ms), then begin the place and think that this TFI has satisfied Blocking Criterion, changes this TFI over to Blocked State at the nearest TTI of the next one;
If 3 certain TFI are in Excess-Power State or Blocked State, and continuous Z in the past
e=30 transmitting powers (that is: UE maximum transmission power-DCH transmitting power) that the interior required transmitting power of this TFI of time slot all can be assigned to less than E-DCH, think that then this TFI satisfies Recovery Criterion, is transformed into Supported State to this TFI by original state.The MAC layer of UE should be at the T that detects after this TFI meets Recovery Criterion simultaneously
E, notifyNotice is high-rise in the=10ms, so that high-rise the adjustment issues the speed of data and data rate that physical layer can be transmitted is complementary.
Consult Fig. 4 B, the state conversion process of E-DCH is as follows when TTI is 2ms:
The MAC layer of UE is assessed each TFI in the TFI of the E-DCH set continuously, and presses commentary and estimate the result and change the TFI state:
If 1 certain TFI belonged to Supported State originally, and continuous in the past Y
eIn=6 time slots, have above X
e=3 time slot desired power think then that all greater than (UE maximum transmission power-DCH transmitting power) this TFI has met Elimination Criterion, is transformed into Excess-PowerState to this TFI.The MAC layer of UE should be at the T that detects after this TFI meets Elimination Criterion simultaneously
E, notifyNotice is high-rise in the=2ms, so that high-rise the adjustment issues the speed of data and data rate that physical layer can be transmitted is complementary;
2, certain TFI is from entering Excess-Power State, if at continuous (T
E, notify+ T
E, modify+ T
E, L1_proc)=(2ms+T
E, modify+ all be in Excess-Power State in 2ms), then begin the place and think that this TFI has satisfied Blocking Criterion, changes this TFI over to BlockedState at the nearest TTI of the next one;
If 3 certain TFI are in Excess-Power State or Blocked State, and continuous Z in the past
e=6 transmitting powers (being UE maximum transmission power-DCH transmitting power) that the interior required transmitting power of this TFI of time slot all can be assigned to less than E-DCH, think that then this TFI satisfies Recovery Criterion, is transformed into Supported State to this TFI by original state.The MAC layer of UE should be at the T that detects after this TFI meets Recovery Criterion simultaneously
E, notifyNotice is high-rise in the=2ms, so that high-rise the adjustment issues the speed of data and data rate that physical layer can be transmitted is complementary.
DCH in Rel99, a code combination transmission channel (CCTrCH) may contain the data of several transport, and these transmission channels have different TTI.Owing to contain a plurality of transmission channels, need represent with transmission channel format combination indication (TFCI).And, determined to have only a transmission channel for E-DCH, so just can represent with TFI.So in HSUPA, T
E, notifyAnd T
E, L1_procCan reduce to a TTI, this mainly is the communication that time of considering a TTI has been enough to finish between inner each layer of UE, and does not shortlyer have much meanings than TTI time, because TTI of the speed of data just may change once.
The consideration of power factor (PF) when changing for TFI, the preferential DCH emission desired power that guarantees of suggestion, i.e. during DCH and E-DCH coexistence, DCH is than the priority height of E-DCH.This is mainly based on the consideration of two aspects: the one, and for compatibility is considered, the Rel6 version must compatible Rel99, can not make the emission of DCH influenced because of the existence of E-DCH; The 2nd, consider that from the QoS angle of two data that channel transmits in general, the data of E-DCH transmission are lower to delay requirement, allow bigger time delay, as business such as web page browsing, Email; And the data of DCH transmission are higher to delay requirement, as speech business.So must guarantee the required power of DCH emission earlier, after satisfying DCH emission power demand, " the E-DCH maximum transmission power " of remaining power as E-DCH channel TFI state exchange.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (4)
1, transmission channel format indicating status conversion method during a kind of high speed uplink packet inserts, the Transmission Time Interval (TTI) that this transmission channel format indication (TFI) place strengthens data transmission channel (E-DCH) is 10ms; It is characterized in that, continuously each TFI in the TFI set of E-DCH is assessed, and press commentary and estimate the result and change the TFI state by the MAC layer of user terminal:
(1) if belong to 15 maximum transmission power that the needed transmitting power of time slot all can be assigned to greater than E-DCH of surpassing is arranged in continuous in the past 30 time slots of the TFI of status of support (Supported State), then this TFI is transformed into overpower state (Excess-Power State), and at the T that detects after meeting switch condition
E, notifyNotice is high-rise in time;
(2) TFI is from entering the overpower state, if at continuous T
E, notify+ T
E, modify+ T
E, L1_procAll be in the overpower state in time, then this TFI be transformed into blocked state (Blocked State);
(3) if be in the maximum transmission power that the interior required transmitting power of 30 time slots of TFI connection in the past of overpower state or blocked state all can be assigned to less than E-DCH, then this TFI is transformed into status of support, and at the T that detects after meeting switch condition
E, notifyNotice is high-rise in time;
Wherein, T
E, notify=10ms, T
E, L1_proc=10ms, T
E, modifyBe professional adaptation time.
2, the method for claim 1 is characterized in that, at first guarantees dedicated channel (DCH) emission power demand during the TFI conversion.
3, transmission channel format indicating status conversion method during a kind of high speed uplink packet inserts, the Transmission Time Interval (TTI) that this transmission channel format indication (TFI) place strengthens data transmission channel (E-DCH) is 2ms; It is characterized in that, continuously each TFI in the TFI set of E-DCH is assessed, and press commentary and estimate the result and change the TFI state by the MAC layer of user terminal:
(1) if belong to 3 transmitting powers that the needed transmitting power of time slot all can be assigned to greater than E-DCH of surpassing is arranged in continuous in the past 6 time slots of the TFI of status of support (Supported State), then this TFI is transformed into overpower state (Excess-Power State), and at the T that detects after meeting switch condition
E, notifyNotice is high-rise in time;
(2) TFI is from entering the overpower state, if at continuous T
E, notify+ T
E, modify+ T
E, L1_procAll be in the overpower state in time, then this TFI be transformed into blocked state (Blocked State);
(3) if be in the maximum transmission power that the interior required transmitting power of 6 time slots of TFI connection in the past of overpower state or blocked state all can be assigned to less than E-DCH, then this TFI is transformed into status of support, and at the T that detects after meeting switch condition
E, notifyNotice is high-rise in time;
T wherein
E, notify=2ms, T
E, L1_proc=2ms, T
E, modifyBe professional adaptation time.
4, the method for claim 1 is characterized in that, at first guarantees dedicated channel (DCH) emission power demand during the TFI conversion.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100591493A CN100353686C (en) | 2004-08-11 | 2004-08-11 | Switching method for transmitting channel format indication state in high-speed upline packet access |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100591493A CN100353686C (en) | 2004-08-11 | 2004-08-11 | Switching method for transmitting channel format indication state in high-speed upline packet access |
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| CN1734980A true CN1734980A (en) | 2006-02-15 |
| CN100353686C CN100353686C (en) | 2007-12-05 |
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ID=36077210
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| CNB2004100591493A Expired - Fee Related CN100353686C (en) | 2004-08-11 | 2004-08-11 | Switching method for transmitting channel format indication state in high-speed upline packet access |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101123798B (en) * | 2006-08-10 | 2010-09-08 | 中兴通讯股份有限公司 | An adjustment method for high-speed uplink packet access to downlink control channel |
| WO2010145553A1 (en) * | 2009-06-19 | 2010-12-23 | 华为技术有限公司 | Method and network device for adjusting transmission timing interval |
| CN102106171A (en) * | 2009-04-27 | 2011-06-22 | 华为技术有限公司 | Method and device for switching |
| CN101631376B (en) * | 2009-06-16 | 2012-05-09 | 中兴通讯股份有限公司 | Method and device for determining power state |
| WO2012139390A1 (en) * | 2011-04-11 | 2012-10-18 | 中兴通讯股份有限公司 | Method and system for processing enhanced dedicated transport channel |
| CN101257725B (en) * | 2007-01-22 | 2012-11-14 | 捷讯研究有限公司 | Method and apparatus for identifying supported transmission channel configurations |
| WO2017121165A1 (en) * | 2016-01-12 | 2017-07-20 | 中兴通讯股份有限公司 | Method for processing transmission power state conversion time and terminal |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002096030A2 (en) * | 2000-10-09 | 2002-11-28 | Siemens Aktiengesellschaft | Method for the transmission of data packets via a radio interface of a mobile radio system |
| KR100493079B1 (en) * | 2001-11-02 | 2005-06-02 | 삼성전자주식회사 | Apparatus for reporting quality of downlink channel in wide band-code division multiple access communication system using high speed data packet access scheme and method thereof |
| KR100979161B1 (en) * | 2002-12-20 | 2010-08-31 | 인터디지탈 테크날러지 코포레이션 | Scheduling data transmission by medium access control(mac) layer in a mobile network |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101123798B (en) * | 2006-08-10 | 2010-09-08 | 中兴通讯股份有限公司 | An adjustment method for high-speed uplink packet access to downlink control channel |
| CN101257725B (en) * | 2007-01-22 | 2012-11-14 | 捷讯研究有限公司 | Method and apparatus for identifying supported transmission channel configurations |
| CN102106171A (en) * | 2009-04-27 | 2011-06-22 | 华为技术有限公司 | Method and device for switching |
| CN102106171B (en) * | 2009-04-27 | 2014-06-25 | 华为技术有限公司 | Method and device for switching |
| US8824369B2 (en) | 2009-04-27 | 2014-09-02 | Huawei Technologies Co., Ltd. | Method and device for switching |
| US9007952B2 (en) | 2009-04-27 | 2015-04-14 | Huawei Technologies Co., Ltd. | Method and device for switching |
| CN101631376B (en) * | 2009-06-16 | 2012-05-09 | 中兴通讯股份有限公司 | Method and device for determining power state |
| WO2010145553A1 (en) * | 2009-06-19 | 2010-12-23 | 华为技术有限公司 | Method and network device for adjusting transmission timing interval |
| CN101932101A (en) * | 2009-06-19 | 2010-12-29 | 华为技术有限公司 | Transmission time interval (TTI) adjustment method and network equipment |
| CN101932101B (en) * | 2009-06-19 | 2015-03-11 | 华为技术有限公司 | Transmission time interval (TTI) adjustment method and network equipment |
| WO2012139390A1 (en) * | 2011-04-11 | 2012-10-18 | 中兴通讯股份有限公司 | Method and system for processing enhanced dedicated transport channel |
| WO2017121165A1 (en) * | 2016-01-12 | 2017-07-20 | 中兴通讯股份有限公司 | Method for processing transmission power state conversion time and terminal |
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