CN101222249B - Closed-loop power controller and its control method - Google Patents
Closed-loop power controller and its control method Download PDFInfo
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- CN101222249B CN101222249B CN2007100007405A CN200710000740A CN101222249B CN 101222249 B CN101222249 B CN 101222249B CN 2007100007405 A CN2007100007405 A CN 2007100007405A CN 200710000740 A CN200710000740 A CN 200710000740A CN 101222249 B CN101222249 B CN 101222249B
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Abstract
The invention discloses a closed loop power control device and a method thereof, wherein the device comprises a demodulation decoding module, an object signal to jamming ratio allocation module and a power control module, wherein the demodulation decoding module is used to complete descrambling and despreading of DPCCH, E-DPCCH and E-DPDCH to obtain signal to jamming ratio, and to complete row decoding of E-DPCCH and E-DPDCH to obtain the channel quality information of the E-DPCCH and E-DPDCH; the object signal to jamming ratio allocation module is used to allocate object signal to jamming ratio according to signal to jamming ratio and channel quality; moreover, the power control module is used to control the closed loop power of subscriber equipment according to the allocated object signal to jamming ratio.
Description
Technical field
The present invention relates to the communications field, relate in particular to a kind of closed-loop power control device and its control method and target sir inking device and method.
Background technology
The third generation (3G) wireless mobile communications is among the continuous evolution variation; Constantly introduce new demand and realize low cost and high-performance; In the 5th edition (R5, Release 5) and sixth version (R6, Release 6), introduced high speed downlink packet access (High Speed Downlink Access respectively; Be called for short HSDPA) and high speed uplink packet access (High Speed Uplink Access; Be called for short HSUPA), its purpose is exactly to make full use of throughput that finite wireless resources improves the single sub-district of system with the single-user equipment peak rate of (User Equipment is called for short UE), UE is asked to make more fast to respond, reduce delay; According to the wireless mobile developing direction of 3G; Up possibility with enhanced dedicated transport (Enhanced Dedicated Transport Channel is called for short E-DCH) replacement dedicated transmission channel (Dedicated Transport Channel is called for short DCH) is increasing.
Signal interference ratio desired value in present agreement (SIR Target) is by radio network controller (Radio Network Controller; Be called for short RNC) control; RNC adjusts SIR Target according to present channel quality, and the power control processing section of base station (Node B) is carried out closed power control according to the SIR Target of RNC configuration to the transmitting power of UE.RNC is bit error rate (the Bit Error Rate of physical channel dedicated transmission channel to the control foundation of SIR Target; Abbreviation BER), the BER of DCH, Block Error Rate (the Block Error Rate of DCH; Abbreviation BLER), the SIR error (SIR Error) of special measurement, the automatic repeat requests failed frame of mixing agreement (the Hybrid Automatic Repeat Request Failure Frame Protocol of E-DCH; Be called for short HARQ Failure FP) frame, the parameters such as number of retransmissions in the FP frame of E-DCH.
For having disposed downlink dedicated transmission channel (Dedicated Physical Data Channel; Abbreviation DPDCH) UE; Owing to possibly start from soft changing state, RNC can take all factors into consideration the Node B of all soft handovers, realizes the control to SIR Target; When not disposing DPDCH, RNC can control with reference to number of retransmissions in the FP frame of E-DCH or HARQ Failure; Because the FP frame of E-DCH divides each MAC-dFlow to report respectively; Can't confirm the multiplexing relation of MAC-d Flow at RNC in good time; And the speed of the back uplink business data that promptly will carry out the scheduling authorization of this UE; So more complicated when SIR Target is controlled, and lack predictable.
Summary of the invention
The object of the present invention is to provide a kind of output control device and method and target sir inking device and method, with the accuracy of raising target sir control, and the response speed of increase subscriber equipment.
According to an aspect of the present invention; A kind of closed-loop power control device is provided; Comprise: the demodulation coding module; Be used for DPCCH, E-DPCCH and E-DPDCH are carried out descrambling and de-spreading with the picked up signal interference ratio, and E-DPCCH and E-DPDCH are deciphered to obtain the channel quality information of E-DPCCH and E-DPDCH; The target sir configuration module is used for according to signal-to-jamming ratio and channel quality information configuration target sir; And power control module, be used for according to the closed power of controlling subscriber equipment through the target sir of configuration.
Closed-loop power control device is arranged in the base station under the subscriber equipment.
The demodulation coding module comprises: demodulation module is used for DPCCH, E-DPCCH and E-DPDCH are carried out descrambling and de-spreading with the picked up signal interference ratio; And decoding module, be used for E-DPCCH and E-DPDCH are deciphered, to obtain the channel quality information of E-DPCCH and E-DPDCH.Wherein, decoding module comprises: the E-DPCCH decoding module is used for E-DPCCH is deciphered, to obtain the channel quality information E-TFCI of E-DPCCH; And the E-DPDCH decoding module, be used for E-DPDCH is deciphered, and whether correctly export ACK or NACK, as the channel quality information of E-DPDCH according to decoding.
The target sir configuration module comprises: the high speed uplink packet access (HSUPA) business scheduler module is used for the scheduling high-speed uplink grouping access service, to obtain the SG of subscriber equipment; The target sir comparison module; Be used for the comparative result and first threshold values of target sir and signal-to-jamming ratio are compared; The number and second threshold values of NACK are compared, number and the 3rd threshold values of ACK compared, and/or SG and LUPR are compared; And the target sir control module, the comparative result of a plurality of comparisons that are used for carrying out according to the target sir comparison module improves or reduces target sir.
According to an aspect of the present invention; A kind of close-loop power controlling method is provided; May further comprise the steps: S502; DPCCH, E-DPCCH and E-DPDCH are carried out descrambling and de-spreading with the picked up signal interference ratio, and E-DPCCH and E-DPDCH are deciphered to obtain the channel quality information of E-DPCCH and E-DPDCH; S504 is according to signal-to-jamming ratio, channel quality information configuration target sir; And S506, according to the closed power of controlling subscriber equipment through the target sir of configuration.
Close-loop power controlling method is used for the base station under the subscriber equipment.
Step S502 comprises: S5022, to DPCCH, E-DPCCH, and E-DPDCH carry out descrambling and de-spreading with the picked up signal interference ratio; And S5024, to E-DPCCH, and E-DPDCH decipher, to obtain E-DPCCH, and the channel quality information of E-DPDCH.Wherein, step S5024 comprises: S5024-2, decipher E-DPCCH, to obtain the channel quality information E-TFCI of E-DPCCH; And S5024-4, E-DPDCH is deciphered, and whether correctly export ACK or NACK, as the channel quality information of E-DPDCH according to decoding.
Step S504 comprises: S5042, and the scheduling high-speed uplink grouping access service is to obtain the SG of subscriber equipment; S5044 judges in step S5024-2, whether successfully to have obtained E-TFCI, or whether the comparative result of judging target sir and signal-to-jamming ratio is greater than first threshold values; S5046, if successfully obtained E-TFCI, or the comparative result of target sir and signal-to-jamming ratio is greater than first threshold values, then with the number of NACK and second threshold values relatively, otherwise target sir improved first decibel value; S5048, if the number of NACK is not more than second threshold values, then number and the 3rd threshold values with ACK compares, otherwise target sir is improved second decibel value; S5050 is if the number of ACK less than the 3rd threshold values, then with the comparative result of SG and LUPR and the 4th threshold values relatively, otherwise reduces the three decibels value with target sir; And S5052, if the comparative result of SG and LUPR greater than the 4th threshold values, then improves the 4th decibel value with target sir, otherwise carry out step S506.
The present invention can pass through the base stations control target sir; Thereby can increase control rate to the channel quality of UE; Controlled target signal-to-jamming ratio more accurately, and can reduce up unnecessary interference, utilize up Radio Resource more fully.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Figure 1A to Fig. 1 C is the block diagram that illustrates according to closed-loop power control device of the present invention and assembly thereof;
Fig. 2 is when closed-loop power control device according to the present invention being shown being used in the base station, the block diagram of the relation between each module of closed-loop power control device;
Fig. 3 illustrates demodulation/decoding module to obtain the included part of channel quality information and/whole flow chart of the process of parameters;
Fig. 4 is the flow chart that the process of HSUPA scheduler module adjustment SIR Target is shown; And
Fig. 5 A to Fig. 5 C is the flow chart that illustrates according to the idiographic flow of the flow process of Poewr control method of the present invention and step thereof.
Embodiment
With reference to accompanying drawing, specify execution mode of the present invention below.
Referring to figs. 1A to Fig. 1 C, explain according to closed power control appliance of the present invention.As shown in the figure; Power control apparatus according to the present invention comprises: demodulation coding module 102; Be used for DPCCH, E-DPCCH and E-DPDCH are carried out descrambling and de-spreading with the picked up signal interference ratio, and E-DPCCH and E-DPDCH are deciphered to obtain the channel quality information of E-DPCCH and E-DPDCH; Target sir configuration module 104 is used for according to signal-to-jamming ratio and channel quality information configuration target sir; And power control module 106, be used for according to the closed power of controlling subscriber equipment through the target sir of configuration.
Wherein, demodulation coding module 102 comprises: demodulation module 1022 is used for DPCCH, E-DPCCH and E-DPDCH are carried out descrambling and de-spreading with the picked up signal interference ratio; And decoding module 1024, be used for E-DPCCH and E-DPDCH are deciphered, to obtain the channel quality information of E-DPCCH and E-DPDCH.
Wherein, decoding module 1024 comprises: E-DPCCH decoding module 1024-2 is used for E-DPCCH is deciphered, to obtain the channel quality information E-TFCI of E-DPCCH; And E-DPDCH decoding module 1024-4, be used for E-DPDCH is deciphered, and whether correctly export ACK or NACK, as the channel quality information of E-DPDCH according to decoding.
Wherein, target sir configuration module 104 comprises: high speed uplink packet access (HSUPA) business scheduler module 1042 is used for the scheduling high-speed uplink grouping access service, to obtain the SG of subscriber equipment; Target sir comparison module 1044; Be used for the comparative result and first threshold values of target sir and signal-to-jamming ratio are compared; The number and second threshold values of NACK are compared, number and the 3rd threshold values of ACK compared, and/or SG and LUPR are compared; And target sir control module 1046, the comparative result of a plurality of comparisons that are used for carrying out according to the target sir comparison module improves or reduces target sir.
Above-mentioned closed power control appliance according to the present invention goes for subscriber equipment and does not dispose under the situation of DPDCH, and can in serving the base station of subscriber equipment, realize.
Under the situation that does not dispose DPDCH; The base station is come target sir is controlled according to the data rate requirement of the GBR of current channel quality, subscriber equipment, non-scheduling and the speed of data dispatching; Wherein, be used in the base station to realize that the relation of each intermodule of above-mentioned functions is as shown in Figure 2.
Can find out that from Fig. 2 data message and the channel quality information of demodulation/decoding module after demodulation sends to the HSUPA scheduler module; HSUPA scheduler module receive channel quality, decode results etc., and to power control module transmission target sir; Power control module carries out closed-loop power control according to the SIR Taget of HSUPA scheduler module configuration to the UE of correspondence.
Wherein, the operation carried out of demodulation/decoding module is as shown in Figure 3:
S302; To Dedicated Physical Control Channel (Dedicated Physical Control Channel; Abbreviation DPCCH), strengthen Dedicated Physical Control Channel (Enhanced Dedicated Physical Control Channel; Abbreviation E-DPCCH), strengthening Dedicated Physical Data Channel (Enhanced Dedicated Physical Data Channel is called for short E-DPDCH) carries out descrambling and de-spreading, calculates SIR.
S304 carries out channel decoding to DPCCH, calculates the pilot tone error rate (Pilot BitError Rate is called for short Pilot BER); The E-DPCCH channel is deciphered, carried out the E-DCH transformat and merge indication (E-DCH Transport Format CombinationIndicator is called for short E-TFCI) decoding, draw E-TFCI.
S306 judges whether E-TFCI is effective, if effectively, then carry out S308; If invalid, then carry out S314.
S308; E-DPDCH is carried out channel decoding; Retransmission sequence number (Retransmission Sequence Number is called for short RSN) according to current frame number and timeslot number and E-DPCCH channel decoding is confirmed HARQ number of retransmissions (Number of HARQ Retransmissions is called for short NHR); According to the whether correct definite response/negative response of decoding (Acknowledgement/Negative Acknowledgement is called for short ACK/NACK).
S310 judges that whether decoding is successful, if decipher successfully, then carries out S312, if decoding failure then carries out S314.
S312 confirms to mix automatic repeat requests power excursion (Hybrid Automatic Repeat Request Power Offset is called for short HARQ PO) according to data content.
S314 sends to the HSUPA scheduler module to SIR, Pilot BER, E-TFCI, ACK/NACK, number of retransmissions (Retransmission Number is called for short RN), the part or all of information of HARQ PO.
Wherein, the data rate after the HSUPA scheduler module is dispatched according to current channel quality, rate requirement, the expectation of subscriber equipment is confirmed SIR Target, sends to SIR Target the power control module of Node B then, and detailed process is as shown in Figure 4:
S402 preserves SIR, Pilot BER, E-TFCI, ACK/NACK, NHR, the part or all of information of HARQ PO.
S404 starts the HSUPA scheduling, calculates the SG of this UE.
S406 judges E-TFCI decoding whether success or SIR Target-SIR＜SIRT not, if decoding success or SIR Target-SIR＞=SIRT (SIR threshold values, SIR Threshold) then carry out S410, otherwise carry out S408.
S408 improves SIR Target M1dB, finishes this process.
Whether S410, the number of judging continuous NACK if N continuous ACK is number＜=L, then carry out S414, otherwise carry out S412 greater than L.
S412 improves SIR Target M2dB, finishes this process.
Whether S414 judges continuous ACK more than or equal to X, if continuous ACK＜X then carries out S418, otherwise carries out S416.
S416 reduces SIR Target M3dB.
Whether S418 judges SG-LUPR greater than Q, if SG-LUPR＜=Q then finishes this process, otherwise carries out S420.
S420 improves SIR Target M4dB, finishes this process.
Need to prove that at this L, X, M1, M2, M3, M4 can be provided with according to concrete algorithm.
Wherein, the deterministic process shown in above-mentioned Fig. 4 can be accomplished through following method:
In sum; Shown in Fig. 5 A to Fig. 5 C; The method of carrying out closed power control according to closed-loop power control device of the present invention may further comprise the steps: S502; DPCCH, E-DPCCH and E-DPDCH are carried out descrambling and de-spreading with the picked up signal interference ratio, and E-DPCCH and E-DPDCH are deciphered to obtain the channel quality information of E-DPCCH and E-DPDCH; S504 is according to signal-to-jamming ratio, channel quality information configuration target sir; And S506, according to the closed power of controlling subscriber equipment through the target sir of configuration.
Wherein, S502 comprises: S5022, to DPCCH, E-DPCCH, and E-DPDCH carry out descrambling and de-spreading with the picked up signal interference ratio; And S5024, to E-DPCCH, and E-DPDCH decipher, to obtain E-DPCCH, and the channel quality information of E-DPDCH.
Wherein, step S5024 comprises: S5024-2, decipher E-DPCCH, to obtain the channel quality information E-TFCI of E-DPCCH; And S5024-4, E-DPDCH is deciphered, and whether correctly export ACK or NACK, as the channel quality information of E-DPDCH according to decoding.
Wherein, step S504 comprises: S5042, and the scheduling high-speed uplink grouping access service is to obtain the SG of subscriber equipment; S5044 judges in step S5024-2, whether successfully to have obtained E-TFCI, or whether the comparative result of judging target sir and signal-to-jamming ratio is greater than first threshold values; S5046, if successfully obtained E-TFCI, or the comparative result of target sir and signal-to-jamming ratio is greater than first threshold values, then with the number of NACK and second threshold values relatively, otherwise target sir improved first decibel value; S5048, if the number of NACK is not more than second threshold values, then number and the 3rd threshold values with ACK compares, otherwise target sir is improved second decibel value; S5050 is if the number of ACK less than the 3rd threshold values, then with the comparative result of SG and LUPR and the 4th threshold values relatively, otherwise reduces the three decibels value with target sir; And S5052, if the comparative result of SG and LUPR greater than the 4th threshold values, then improves the 4th decibel value with target sir, otherwise carry out step S506.
The present invention can pass through the base stations control target sir; Thereby can increase control rate to the channel quality of UE; Controlled target signal-to-jamming ratio more accurately, and can reduce up unnecessary interference, utilize up Radio Resource more fully.
The above is merely the preferred embodiments of the present invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (16)
1. a closed-loop power control device is characterized in that, said closed-loop power control device is arranged in the base station under the subscriber equipment, and said closed-loop power control device comprises:
The demodulation coding module; Be used for Dedicated Physical Control Channel (DPCCH), strengthen Dedicated Physical Control Channel (E-DPCCH) and strengthen Dedicated Physical Data Channel (E-DPDCH) and carry out descrambling and de-spreading, and said E-DPCCH and said E-DPDCH are deciphered to obtain the channel quality information of said E-DPCCH and said E-DPDCH with the picked up signal interference ratio;
The target sir configuration module is used for according to said signal-to-jamming ratio and said channel quality information configuration target sir; And
Power control module is used for according to the said closed power of controlling subscriber equipment through the target sir of configuration.
2. closed-loop power control device according to claim 1 is characterized in that, said demodulation coding module comprises:
Demodulation module is used for said DPCCH, said E-DPCCH and said E-DPDCH are carried out descrambling and de-spreading with the picked up signal interference ratio; And
Decoding module is used for said E-DPCCH and said E-DPDCH are deciphered, to obtain the said channel quality information of said E-DPCCH and said E-DPDCH.
3. closed-loop power control device according to claim 2 is characterized in that, said decoding module comprises:
The E-DPCCH decoding module is used for said E-DPCCH is deciphered,
To obtain the channel quality information of said E-DPCCH; And
The E-DPDCH decoding module is used for said E-DPDCH is deciphered, and whether correctly exports ACK or NACK according to decoding, as the channel quality information of said E-DPDCH.
4. closed-loop power control device according to claim 3 is characterized in that, said target sir configuration module comprises:
The high speed uplink packet access (HSUPA) business scheduler module is used for the scheduling high-speed uplink grouping access service, with the authorization of service (SG) that obtains said subscriber equipment;
The target sir comparison module; Be used for the comparative result and first threshold values of said target sir and said signal-to-jamming ratio are compared; The number and second threshold values of said NACK are compared; Number and the 3rd threshold values of said ACK are compared, and/or said SG is compared with using power ratio (LUPR) recently; And
The target sir control module, the comparative result of a plurality of comparisons that are used for carrying out according to said target sir comparison module improves or reduces said target sir.
5. a target sir inking device is characterized in that, said target sir inking device is arranged in the base station under the subscriber equipment, and said target sir inking device comprises:
The demodulation coding module is used for DPCCH, E-DPCCH and E-DPDCH are carried out descrambling and de-spreading with the picked up signal interference ratio, and said E-DPCCH and said E-DPDCH are deciphered to obtain the channel quality information of said E-DPCCH and said E-DPDCH;
The target sir configuration module is used for according to said signal-to-jamming ratio and said channel quality information configuration target sir.
6. target sir inking device according to claim 5 is characterized in that, said demodulation coding module comprises:
Demodulation module is used for said DPCCH, said E-DPCCH and said E-DPDCH are carried out descrambling and de-spreading with the picked up signal interference ratio; And decoding module, be used for said E-DPCCH and said E-DPDCH are deciphered, to obtain the said channel quality information of said E-DPCCH and said E-DPDCH.
7. target sir inking device according to claim 6 is characterized in that, said decoding module comprises:
The E-DPCCH decoding module is used for said E-DPCCH is deciphered, to obtain the channel quality information of said E-DPCCH; And
The E-DPDCH decoding module is used for said E-DPDCH is deciphered, and whether correctly exports ACK or NACK according to decoding, as the channel quality information of said E-DPDCH.
8. target sir inking device according to claim 7 is characterized in that, said target sir configuration module comprises:
The high speed uplink packet access (HSUPA) business scheduler module is used for the scheduling high-speed uplink grouping access service, to obtain the SG of said subscriber equipment;
The target sir comparison module; Be used for the comparative result and first threshold values of said target sir and said signal-to-jamming ratio are compared; The number and second threshold values of said NACK are compared; Number and the 3rd threshold values of said ACK are compared, and/or said SG and LUPR are compared; And
The target sir control module, the comparative result of a plurality of comparisons that are used for carrying out according to said target sir comparison module improves or reduces said target sir.
9. a close-loop power controlling method is characterized in that, said close-loop power controlling method is used for the base station under the subscriber equipment, said method comprising the steps of:
S502 carries out descrambling and de-spreading with the picked up signal interference ratio to DPCCH, E-DPCCH and E-DPDCH, and said E-DPCCH and said E-DPDCH are deciphered to obtain the channel quality information of said E-DPCCH and said E-DPDCH;
S504 is according to said signal-to-jamming ratio, said channel quality information configuration target sir; And
S506 is according to the said closed power of controlling subscriber equipment through the target sir of configuration.
10. close-loop power controlling method according to claim 9 is characterized in that, said step S502 comprises:
S5022 is to said DPCCH, said E-DPCCH, and said E-DPDCH
Carry out descrambling and de-spreading to obtain said signal-to-jamming ratio; And
S5024, to said E-DPCCH, and said E-DPDCH decipher, to obtain said E-DPCCH, and the said channel quality information of said E-DPDCH.
11. close-loop power controlling method according to claim 10 is characterized in that, said step S5024 comprises:
S5024-2 deciphers said E-DPCCH, to obtain the channel quality information of said E-DPCCH; And
S5024-4 deciphers said E-DPDCH, and whether correctly exports ACK or NACK according to decoding, as the channel quality information of said E-DPDCH.
12. close-loop power controlling method according to claim 11 is characterized in that, said step S504 comprises:
S5042, the scheduling high-speed uplink grouping access service is to obtain the SG of said subscriber equipment;
S5044 judges in said step S5024-2, whether successfully to have obtained said channel quality information, or whether the comparative result of judging said target sir and said signal-to-jamming ratio is greater than first threshold values;
S5046; If successfully obtained said channel quality information; Or the comparative result of said target sir and said signal-to-jamming ratio is greater than said first threshold values, then with the number of said NACK and second threshold values relatively, otherwise said target sir improved first decibel value;
S5048 if the number of said NACK is not more than said second threshold values, then compares said ACK number and the 3rd threshold values, otherwise said target sir is improved second decibel value;
S5050 is if said ACK less than said the 3rd threshold values, then with the comparative result of said SG and LUPR and the 4th threshold values relatively, otherwise reduces the three decibels value with said target sir; And
S5052 if the comparative result of said SG and said LUPR then improves the 4th decibel value with said target sir greater than said the 4th threshold values, otherwise carries out said step S506.
13. a target sir collocation method is characterized in that, said target sir collocation method is used for the base station under the subscriber equipment, said method comprising the steps of:
S502 carries out descrambling and de-spreading with the picked up signal interference ratio to DPCCH, E-DPCCH and E-DPDCH, and said E-DPCCH and said E-DPDCH are deciphered to obtain the channel quality information of said E-DPCCH and said E-DPDCH; And
S504 is according to said signal-to-jamming ratio, said channel quality information configuration target sir.
14. target sir collocation method according to claim 13 is characterized in that, said step S502 comprises:
S5022, to said DPCCH, said E-DPCCH, and said E-DPDCH carry out descrambling and de-spreading to obtain said signal-to-jamming ratio; And
S5024, to said E-DPCCH, and said E-DPDCH decipher, to obtain said E-DPCCH, and the said channel quality information of said E-DPDCH.
15. target sir collocation method according to claim 14 is characterized in that, said step S5024 comprises:
S5024-2 deciphers said E-DPCCH, to obtain the channel quality information of said E-DPCCH; And
S5024-4 deciphers said E-DPDCH, and whether correctly exports ACK or NACK according to decoding, as the channel quality information of said E-DPDCH.
16. target sir collocation method according to claim 15 is characterized in that, said step S504 comprises:
S5042, the scheduling high-speed uplink grouping access service is to obtain the SG of said subscriber equipment;
S5044 judges in said step S5024-2, whether successfully to have obtained said channel quality information, or whether the comparative result of judging said target sir and said signal-to-jamming ratio is greater than first threshold values;
S5046; If successfully obtained said channel quality information; Or the comparative result of said target sir and said signal-to-jamming ratio is greater than said first threshold values, then with the number of said NACK and second threshold values relatively, otherwise said target sir improved first decibel value;
S5048, if the number of said NACK is not more than said second threshold values, then number and the 3rd threshold values with said ACK compares, otherwise said target sir is improved second decibel value;
S5050 is if the number of said ACK less than said the 3rd threshold values, then with the comparative result of said SG and LUPR and the 4th threshold values relatively, otherwise reduces the three decibels value with said target sir; And
S5052 is if the comparative result of said SG and said LUPR then improves the 4th decibel value with said target sir greater than said the 4th threshold values.
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|---|---|---|---|---|
| CN1407816A (en) * | 2001-09-06 | 2003-04-02 | 华为技术有限公司 | Self-adapting method for mobile communication transmitting signals |
| CN1428946A (en) * | 2001-12-28 | 2003-07-09 | 华为技术有限公司 | Method for obtaining down high-speed data transmission parameter in time division duplex system |
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| Publication number | Publication date |
|---|---|
| CN101222249A (en) | 2008-07-16 |
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