CN101635596A - Method for selecting transmission format of high-speed uplink enhanced dedicated channel - Google Patents
Method for selecting transmission format of high-speed uplink enhanced dedicated channel Download PDFInfo
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- CN101635596A CN101635596A CN200810134261A CN200810134261A CN101635596A CN 101635596 A CN101635596 A CN 101635596A CN 200810134261 A CN200810134261 A CN 200810134261A CN 200810134261 A CN200810134261 A CN 200810134261A CN 101635596 A CN101635596 A CN 101635596A
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Abstract
The invention provides a method for selecting a transmission format of a high-speed uplink enhanced dedicated channel (E-DCH), which comprises that: when user equipment selects an E-DCH transmission format, if other physical channels which are simultaneously sent in an E-PUCH time slot exist on the user equipment, the E-DCH transmission format selected for transmitting uplink data meets the following condition: E-PUCH transmission power corresponding to the E-DCH transmission format is less than or equal to available power for the time, and the sum of the E-PUCH transmission power and the transmission power of other physical channels for the time in the time slot is less than or equal to the maximum transmission power of available uplinks. By adopting the technical scheme, when the E-DCH transmission format is selected, the transmission power of other physical channels in the E-PUCH time slot at the transmission moment is pre-estimated, so that the selected E-DCH transmission format can be supported by the actual available power of the UE at the transmission moment to ensure normal transmission of the uplink data.
Description
Technical field
The present invention relates to field of wireless communication, relate generally to a kind of system of selection of transmission format of high-speed uplink enhanced dedicated channel.
Background technology
TD-SCDMA (TD SDMA access) is after introducing HSDPA (high speed downlink packet access) technology significantly improves the message transmission rate and throughput of down link, require higher business development needs for satisfying upstream rate, further carried out the research to the up link enhancement techniques, the industry custom is referred to as high-speed uplink enhanced dedicated channel (E-DCH).E-DCH adopts Node B (base station) fast dispatch, mixes automatic request retransmission (HARQ), Adaptive Modulation and Coding enhancement techniques such as (AMC), improves the speed and the throughput of up link, reduces time delay.
The basic transfer process of E-DCH is made up of 3 parts as shown in Figure 1:
Step 101, send authorization message by E-AGCH (E-DCH absolute grant channel) to UE (subscriber equipment) by network side, comprising UE this operable code channel and power information;
Step 102, UE receive the E-TFC (transformat) that selects E-DCH according to the code channel resource and the power resource of wherein indication after the authorization message, need guarantee that the transformat of choosing can be in the supportable range of authorization resources when selecting E-TFC, after selecting E-TFC, UE uses E-PUCH (enhancing uplink physical channel) according to the E-TFC transmit ascending data of choosing just now;
Step 103, network side after receiving E-PUCH, by E-HICH to information such as UE feeding back ACK/NACK.
Can find that from said process it is one very important in the E-DCH transmission that E-TFC selects.If E-TFC selects smallerly, so just wasted the resource of authorizing; If E-TFC selects excessive situation, thereby can cause situation such as transmitting power deficiency to influence the Data Receiving success rate of network side so.
At present, agreement is divided E-TFC for two states: status of support and blocked state when describing the E-TFC selection.The E-TFC that belongs to status of support can be selected to be used for carrying out transfer of data by UE.Stipulate in the current agreement that the E-TFC that belongs to status of support should satisfy following condition: according to the transmitted power P of this E-TFC calculating
E-PUCH(referring to 3GPP TS25.224) is less than or equal to this available power.But, because at present on same time slot, UE can have E-PUCH and other physical channel simultaneously, and transmitting power is subjected to gain factors affect bigger on uncertainty that HS-SICH (sharing information at a high speed) channel occurs and DPCH (the up special-purpose physics) channel, and NodeB can not know the actual emission power of other physical channels when E-PUCH launches when authorizing.In this case, the pairing E-PUCH transmitting power of the E-TFC P that UE selects may appear
E-PUCHOther physical channel transmitting powers that add this time slot surpass UE can be with the situation of up maximum transmission power.In this case, selecteed E-TFC possibly can't correctly send owing to transmitting power is not enough.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of system of selection of transmission format of high-speed uplink enhanced dedicated channel, can effectively avoid when there are other physical channels that send simultaneously in E-PUCH place time slot, UE is owing to the excessive problem that causes upstream data correctly to send of E-PUCH transmitting power of the E-DCH E-TFC correspondence of selecting.
In order to address the above problem, the invention provides a kind of system of selection of transformat of high-speed uplink enhanced dedicated channel, comprise, when subscriber equipment is selected high-speed uplink enhanced dedicated channel E-DCH transformat, if described subscriber equipment is strengthening other physical channels that the time slot existence of uplink physical channel E-PUCH place sends simultaneously, the E-DCH transformat that selection is used for transmit ascending data meets the following conditions: the E-PUCH transmitting power of described E-DCH transformat correspondence is less than or equal to this available horsepower, and this transmitting power sum of other physical channels is less than or equal to available up maximum transmission power on described E-PUCH transmitting power and the described time slot.
Further, this transmitting power of other physical channels is the described physical channel transmitting power when launching last time on the described time slot.
Further, if other physical channels were received the power control command word of described other physical channel correspondences last time on the described time slot after the emission, transmitting power when with described power control command word being launched last time is revised, with revised value this transmitting power as described other physical channels.
Further, if do not send before described other physical channels, then with the Initial Trans of described other physical channels as this transmitting power.
Further, A, subscriber equipment filter out code check more than or equal to minimum code rate, less than the E-DCH transformat of maximal rate according to the time slot and the code word of authorization message;
B, subscriber equipment further filter out corresponding E-PUCH transmitting power and are less than or equal to this available horsepower, and this transmitting power sum of other physical channels is less than or equal to the E-DCH transformat of available up maximum transmission power on described E-PUCH transmitting power and the described time slot;
C, subscriber equipment select to have the E-DCH transmission format set that maximum medium access control strengthens sublayer Packet Data Unit MAC-e PDU from the described E-DCH transformat that filters out, if modulation system is E-DCH transmission format set and the modulation system of Quadrature Phase Shift Keying QPSK is the maximum MAC-e PDU that the E-DCH transmission format set of 16QAM has identical size, is chosen in then that the less E-DCH transmission format set of pairing E-PUCH transmitting power is used for transmit ascending data under the described maximum MAC-e PDU.
Further, among described steps A and the step B, the E-DCH transformat that filters out is divided into two subclass by modulation system, the modulation system that one of them subclass adopts is QPSK, and the modulation system that another subclass adopts is 16QAM;
Among the described step C, from modulation system is the E-DCH transmission format set of selecting to have maximum MAC-e PDU the subclass of QPSK, from modulation system is the E-DCH transmission format set of selecting to have maximum MAC-e PDU the subclass of 16QAM, when the concentrated maximum MAC-e PDU size of described two sons is identical, select the corresponding less E-DCH transmission format set of E-PUCH transmitting power to be used for transmit ascending data, the maximum MAC-e PDU that concentrates when described two sons not simultaneously, the E-DCH transmission format set of then selecting to have big MAC-e PDU is used for transmit ascending data.
Further, described other physical channels that exist at E-PUCH place time slot are one or more in the following physical channel: up special-purpose physics, High-Speed Shared Control Channel.
Further, the pairing E-PUCH transmitting power of described E-DCH transformat is according to mixing automatic request retransmission attribute power excursion, and gain factor and current closed power controlled quentity controlled variable calculate.
Further, described maximum and minimum code rate are controlled pre-configured by Radio Resource and are handed down to described subscriber equipment, and the time slot of described authorization message and code word send to subscriber equipment by network side by the E-DCH absolute grant channel.
Further, described available up maximum transmission power is controlled pre-configured by Radio Resource and is handed down to described subscriber equipment, and described this available horsepower is disposed to described subscriber equipment by the E-DCH absolute grant channel by network side.
In sum, the invention provides a kind of system of selection of transmission format of high-speed uplink enhanced dedicated channel, when selecting the E-TFC of E-DCH, the transmitting power of other physical channels on the E-PUCH time slot of delivery time is estimated, thereby make the E-DCH E-TFC that selects to have been guaranteed that by the actual available horsepower support of UE upstream data can normally send at delivery time.
Description of drawings
Fig. 1 is the basic transfer process schematic diagram of E-DCH;
Fig. 2 is the flow chart of a kind of E-DCH E-TFC of embodiment of the invention system of selection.
Embodiment
The invention provides a kind of system of selection of transmission format of high-speed uplink enhanced dedicated channel, when UE selects E-DCH E-TFC, if there are other physical channels that send simultaneously in UE at E-PUCH place time slot, the E-DCH E-TFC that selection is used for transmit ascending data meets the following conditions: the E-PUCH transmitting power of E-DCH E-TFC correspondence is less than or equal to this available horsepower, and this transmitting power sum of other physical channels is less than or equal to available up maximum transmission power on this E-PUCH transmitting power and this time slot.
Present embodiment provides a kind of system of selection of transmission format of high-speed uplink enhanced dedicated channel, select the description of part according to agreement E-DCH E-TFC, enumerated the flow process that UE filters out the maximum transport format that authorization resources can support, as shown in Figure 2, idiographic flow is as follows:
Step 201:UE filters out code check more than or equal to minimum code rate according to the time slot and the code word of authorization message, and less than the E-DCH E-TFC of maximal rate, maximum, minimum code rate is pre-configured and be handed down to UE by RRC (Radio Resource control); Can the E-DCH E-TFC that filter out be divided into two subclass C1 and C2 by modulation system, wherein the modulation system of C1 employing is QPSK (Quadrature Phase Shift Keying), and the modulation system that C2 adopts is 16QAM.The time slot and the code word of authorization message send to UE by network side by E-AGCH.
The definition of code check is the different range of code rates of E-TFC distribution of QPSK and 16QAM with reference to 3GPP agreement TS25.224 to modulation system.
Step 202:UE further filters out corresponding E-PUCH transmitting power P
E-PUCHThe E-DCH E-TFC that is less than or equal to this available horsepower; The pairing E-PUCH transmitting power of each E-DCH E-TFC P
E-PUCHCan be according to HARQ attribute power excursion, gain factor Beta and current Pebase (closed power controlled quentity controlled variable) calculate the same prior art of its computational methods; When UE when there are other physical channels that send simultaneously in E-PUCH place time slot, the E-DCH E-TFC that filters out also should satisfy, the E-PUCH transmitting power P that it is corresponding
E-PUCHBe less than or equal to available up maximum transmission power with this transmitting power sum of other physical channels on this time slot.
UE is when estimating with E-PUCH with other physical channel transmitting powers of time slot, transmitting power in the time of these other physical channel can being launched last time is as this transmitting power, if received the power control command word of these other physical channel correspondences last time after the emission, transmitting power in the time of can also launching last time with this power control command word is revised, with the transmitting power of revised value as this.If do not send with other physical channels of time slot with E-PUCH before this, then with the Initial Trans of these other physical channels transmitting power as this.
With E-PUCH may be DPCH, HS-SCCH (High-Speed Shared Control Channel) etc. with other physical channels of time slot.UE can point out and be handed down to UE by system side in advance with up maximum transmission power in rrc layer message.This available horsepower is disposed to UE by E-AGCH by network side such as NodeB.For the re-transmission under the non-scheduling, needn't require this transmitting power sum of other physical channels on the transmitting power PE-PUCH of the E-DCH E-TFC correspondence selected and this time slot to be less than or equal to available up maximum transmission power.
This step can also will further be divided into two subclass of D1, D2 with the E-DCH E-TFC that filters out by modulation system, and wherein, the modulation system that D1 adopts is QPSK, and the modulation system that D2 adopts is 16QAM.
Step 203:UE selects to have maximum MAC-e PDU from the E-DCH E-TFC that the filters out E-DCH E-TFC set of (medium access control strengthen sublayer Packet Data Unit), if modulation system is E-TFC set and the modulation system of QPSK is that the E-DCH E-TFC of 16QAM gathers the maximum MAC-e PDU with identical size, then is chosen in pairing E-PUCH transmitting power P under this maximum MAC-e PDU
E-PUCHLess E-DCH E-TFC set is used for transmit ascending data.
If be divided into two subclass of D1, D2 by modulation system in the step 202, then can from D1, select to have the E-DCH E-TFC set of maximum MAC-e PDU, from D2, select to have the E-DCH E-TFC set of maximum MAC-ePDU, when the concentrated maximum MAC-e PDU size of two sons is identical, select corresponding E-PUCH transmitting power P
E-PUCHLess E-DCH E-TFC set is used for transmit ascending data, the maximum MAC-e PDU that concentrates when two sons not simultaneously, the E-DCH E-TFC set of then selecting to have big MAC-ePDU is used for transmit ascending data.
Then, UE uses E-PUCH to the network side transmit ascending data according to the E-TFC that selects.
By above-mentioned flow process, when having solved the synchronic crack of E-PUCH and other physical channels, because E-TFC selects the excessive problem that causes upstream data correctly to send.
Claims (10)
1, a kind of system of selection of transformat of high-speed uplink enhanced dedicated channel, comprise, when subscriber equipment is selected high-speed uplink enhanced dedicated channel E-DCH transformat, if described subscriber equipment is strengthening other physical channels that the time slot existence of uplink physical channel E-PUCH place sends simultaneously, the E-DCH transformat that selection is used for transmit ascending data meets the following conditions: the E-PUCH transmitting power of described E-DCH transformat correspondence is less than or equal to this available horsepower, and this transmitting power sum of other physical channels is less than or equal to available up maximum transmission power on described E-PUCH transmitting power and the described time slot.
2, the method for claim 1 is characterized in that:
This transmitting power of other physical channels is the described physical channel transmitting power when launching last time on the described time slot.
3, the method for claim 1 is characterized in that:
If other physical channels were received the power control command word of described other physical channel correspondences last time on the described time slot after the emission, transmitting power when with described power control command word being launched last time is revised, with revised value this transmitting power as described other physical channels.
4, the method for claim 1 is characterized in that:
If do not send before described other physical channels, then with the Initial Trans of described other physical channels as this transmitting power.
5, the method for claim 1 is characterized in that, described method specifically comprises:
A, subscriber equipment filter out code check more than or equal to minimum code rate, less than the E-DCH transformat of maximal rate according to the time slot and the code word of authorization message;
B, subscriber equipment further filter out corresponding E-PUCH transmitting power and are less than or equal to this available horsepower, and this transmitting power sum of other physical channels is less than or equal to the E-DCH transformat of available up maximum transmission power on described E-PUCH transmitting power and the described time slot;
C, subscriber equipment select to have the E-DCH transmission format set that maximum medium access control strengthens sublayer Packet Data Unit MAC-e PDU from the described E-DCH transformat that filters out, if modulation system is E-DCH transmission format set and the modulation system of Quadrature Phase Shift Keying QPSK is the maximum MAC-e PDU that the E-DCH transmission format set of 16QAM has identical size, is chosen in then that the less E-DCH transmission format set of pairing E-PUCH transmitting power is used for transmit ascending data under the described maximum MAC-e PDU.
6, method as claimed in claim 5 is characterized in that, described method further comprises:
Among described steps A and the step B, the E-DCH transformat that filters out is divided into two subclass by modulation system, the modulation system that one of them subclass adopts is QPSK, and the modulation system that another subclass adopts is 16QAM;
Among the described step C, from modulation system is the E-DCH transmission format set of selecting to have maximum MAC-e PDU the subclass of QPSK, from modulation system is the E-DCH transmission format set of selecting to have maximum MAC-e PDU the subclass of 16QAM, when the concentrated maximum MAC-e PDU size of described two sons is identical, select the corresponding less E-DCH transmission format set of E-PUCH transmitting power to be used for transmit ascending data, the maximum MAC-e PDU that concentrates when described two sons not simultaneously, the E-DCH transmission format set of then selecting to have big MAC-e PDU is used for transmit ascending data.
7, the method for claim 1 is characterized in that:
Described other physical channels that exist at E-PUCH place time slot are one or more in the following physical channel: up special-purpose physics, High-Speed Shared Control Channel.
8, method as claimed in claim 5 is characterized in that:
The pairing E-PUCH transmitting power of described E-DCH transformat is according to mixing automatic request retransmission attribute power excursion, and gain factor and current closed power controlled quentity controlled variable calculate.
9, method as claimed in claim 5 is characterized in that:
Described maximum and minimum code rate are controlled pre-configured by Radio Resource and are handed down to described subscriber equipment, and the time slot of described authorization message and code word send to subscriber equipment by network side by the E-DCH absolute grant channel.
10, as claim 1 or 5 described methods, it is characterized in that:
Described available up maximum transmission power is controlled pre-configured by Radio Resource and is handed down to described subscriber equipment, and described this available horsepower is disposed to described subscriber equipment by the E-DCH absolute grant channel by network side.
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| CN200810134261A CN101635596A (en) | 2008-07-23 | 2008-07-23 | Method for selecting transmission format of high-speed uplink enhanced dedicated channel |
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| CN200810134261A CN101635596A (en) | 2008-07-23 | 2008-07-23 | Method for selecting transmission format of high-speed uplink enhanced dedicated channel |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102448156A (en) * | 2010-09-30 | 2012-05-09 | 中兴通讯股份有限公司 | Method and system for sending multi-carrier HSUPA enhanced uplink physical channel |
| CN102695258A (en) * | 2012-05-28 | 2012-09-26 | 华为技术有限公司 | Power distribution method and user equipment |
| CN102932896A (en) * | 2011-08-09 | 2013-02-13 | 中兴通讯股份有限公司 | Method and device for selecting enhanced-transport format combination (E-TFC) of high-speed uplink packet access |
| CN109768849A (en) * | 2013-08-01 | 2019-05-17 | 华为技术有限公司 | The method and apparatus of information configuration and data receiver |
-
2008
- 2008-07-23 CN CN200810134261A patent/CN101635596A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102448156A (en) * | 2010-09-30 | 2012-05-09 | 中兴通讯股份有限公司 | Method and system for sending multi-carrier HSUPA enhanced uplink physical channel |
| CN102448156B (en) * | 2010-09-30 | 2015-10-21 | 中兴通讯股份有限公司 | A kind of multi-carrier HSUPA strengthens uplink physical channel sending method and system |
| CN102932896A (en) * | 2011-08-09 | 2013-02-13 | 中兴通讯股份有限公司 | Method and device for selecting enhanced-transport format combination (E-TFC) of high-speed uplink packet access |
| CN102932896B (en) * | 2011-08-09 | 2018-03-16 | 中兴通讯股份有限公司 | A kind of high speed uplink packet access E TFC systems of selection and device |
| CN102695258A (en) * | 2012-05-28 | 2012-09-26 | 华为技术有限公司 | Power distribution method and user equipment |
| CN102695258B (en) * | 2012-05-28 | 2014-12-24 | 华为技术有限公司 | Power distribution method and user equipment |
| CN109768849A (en) * | 2013-08-01 | 2019-05-17 | 华为技术有限公司 | The method and apparatus of information configuration and data receiver |
| CN109768849B (en) * | 2013-08-01 | 2024-03-05 | 华为技术有限公司 | Method and device for information configuration and data reception |
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Application publication date: 20100127 |