CN102340790A - Method and system for calibrationg closed-loop quantity maintained by user equipment - Google Patents
Method and system for calibrationg closed-loop quantity maintained by user equipment Download PDFInfo
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- CN102340790A CN102340790A CN201010234931XA CN201010234931A CN102340790A CN 102340790 A CN102340790 A CN 102340790A CN 201010234931X A CN201010234931X A CN 201010234931XA CN 201010234931 A CN201010234931 A CN 201010234931A CN 102340790 A CN102340790 A CN 102340790A
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Abstract
The invention discloses a method and a system for calibrating closed-loop quantity maintained by user equipment, which comprises the steps that: a transmit power control (TPC) command is carried in an enhanced absolute grant channel (E-AGCH) frame structure of an extended control channel; and when calibration and a cyclic redundancy check (CRC) calibration result are accurate, user equipment (UE) calibrates the Pe-base of the closed-loop that the UE maintains according to the TPC command. The invention also discloses a system of the closed-loop maintained by the calibration user equipment. In the system, a calibration unit on the UE side is used for the UE to calibrate the Pe-base of the closed-loop that the UE maintains according to the TPC command when the CRC calibration result is accurate if the TPC command is carried in the E-AGCH frame structure of the extended control channel. The method and the system can prevent deviation between the UE and the Pe-base maintained on a network side, so that the calibration precision is improved.
Description
Technical field
The present invention relates to TD SDMA (TD-SCDMA in the moving communicating field; Time DivisionSynchronous Code Division Multiple Access) technology; Relate in particular to a kind of TD-SCDMA high speed uplink packet and insert the closed loop amount P that (HSUPA, High Speed Uplink Packet Access) the mutatis mutandis family of system lieutenant colonel equipment (UE) is safeguarded
E-baseMethod and system.
Background technology
In the HSUPA system; E-AGCH and the control of E-PUCH pairing carrying out closed power; In the base station NodeB side; Comparing through the quality target value that provides with high level produces the power control commands TPC of closed loop, and (TPC field) carries the TPC command word to UE through the TPC territory in the E-AGCH burst structure, is used for controlling the E-PUCH transmitted power of UE; In the UE side, comparing through the quality objective that provides with high level also produces the TPC command word, and through the TPC field in the E-PUCH burst structure TPC command word is carried to NodeB, is used for controlling the power level that Node B sends E-AGCH.Wherein, said E-AGCH is the absolute grant channel of enhancement type special channel (E-DCH); Said E-PUCH is the enhanced uplink physical channel; Employed E-AGCH burst structure is as shown in Figure 1 in the TD-SCDMA system, and said TPC field is the part of burst structure.
If the power of physical channel should increase, then the TPC command word is set to (up), and expression adjusts upward power; Reduce if desired, then the TPC command word is set to down (down), and expression is adjustment power downwards.
P
E-baseBe the closed loop amount that UE and NodeB safeguard, P
E-baseWith the relation of TPC shown in following formula (1):
In the formula (1), PRX
Des_baseFor E-PUCH benchmark expectation received power,, be set to the interference mean value of E-DCH ascending time slot by the RRC signaling; Step is the power control step-size Δ
E-base, dispose by high level; TPC
iPower control command for closed loop.
In the prior art, each UE is when receiving E-AGCH, if verification is with (CRC) check results is correct, then UE can be according to the entrained TPC command word of TPC field in the E-AGCH burst structure to P that UE safeguarded
E-baseAdjust, with the P that keeps being safeguarded with network side
E-baseConsistent as far as possible.Yet, correct because UE can't know the decoding correctness as long as UE judges the CRC check result, will adjust P according to the resulting TPC command word of decoded result to TPC field decoding
E-base, therefore,, and during to the TPC field decoding error in the E-AGCH burst structure, will cause UE to P if the CRC check result is correct
E-baseDirection toward wrong is adjusted, should adjust toward up such as former, and be down but decoding error causes decoded result, thus finally can be toward down adjustment, the P that causes UE and network side to be safeguarded
E-baseBetween bigger deviation is arranged, particularly in the multi-carrier HSUPA system, P
E-baseBe the parameter that the carrier wave level is safeguarded, the P that UE and network side are safeguarded
E-baseBetween deviation appears and probability more significantly increase.Press for a kind of P that can avoid UE and network side to safeguard at present
E-baseBetween the calibration program of deviation appears.
Summary of the invention
In view of this, main purpose of the present invention is to provide the method and system of the closed loop amount that a kind of UE of calibration safeguards, the P that can avoid UE and network side to safeguard
E-baseBetween deviation appears, improve the accuracy of calibration.
For achieving the above object, technical scheme of the present invention is achieved in that
A kind of method of calibrating the closed loop amount that subscriber equipment safeguards, this method comprises:
In the absolute grant channel of control channel enhancement type special channel (E-AGCH) frame structure of expansion, carry power control command (TPC) command word;
Verification is when (CRC) check results is correct, and subscriber equipment (UE) is according to said TPC command word, to the closed loop amount P that UE safeguarded
E-baseCalibrate.
Wherein, this method also comprises: when network side carries out scheduling authorization, the TPC command word that obtains is carried in the control channel E-AGCH frame structure of said expansion.
Wherein, said TPC command word comprises: numerical value 0 or numerical value 1; Wherein, P is raised in said numerical value 1 expression
E-base, corresponding, said numerical value 0 expression downward modulation P
E-basePerhaps, said numerical value 1 expression downward modulation P
E-base, corresponding, P is raised in said numerical value 0 expression
E-base
Wherein, said UE is according to said TPC command word, to the closed loop amount P that UE safeguarded
E-baseAfter calibrating, this method also comprises: said UE basis is to P
E-baseThe result of calibration judges the transmitting power of the enhanced uplink physical channel (E-PUCH) corresponding with E-AGCH, and sends said E-PUCH.
Wherein, when said TPC command word was specially said numerical value 1, this method also comprised: said to P
E-baseThe result of calibration is specially and adjusts upward power, judges the transmitting power that needs to increase said E-PUCH;
Accordingly, when said TPC command word was specially said numerical value 0, this method also comprised: said to P
E-baseThe result of calibration is specially downward adjustment power, judges the transmitting power that needs to reduce said E-PUCH; Perhaps,
When said TPC command word was specially said numerical value 1, this method also comprised: said to P
E-baseThe result of calibration is specially downward adjustment power, judges the transmitting power that needs to reduce said E-PUCH;
Accordingly, when said TPC command word was specially said numerical value 0, this method also comprised: said to P
E-baseThe result of calibration is specially and adjusts upward power, judges the transmitting power that needs to increase said E-PUCH.
Wherein, this method also comprises: if said network side receives said E-PUCH, and the CRC check result is correct, and then network side is judged said UE and correctly received said E-AGCH, the closed loop amount P that network side is safeguarded according to said TPC command word
E-baseCalibrate;
If said network side does not receive said E-PUCH, then network side is judged said UE and is not correctly received said E-AGCH, the closed loop amount P that keeps network side to safeguard
E-baseConstant.
A kind of system of calibrating the closed loop amount that subscriber equipment safeguards; This system comprises: the alignment unit of UE side is used for carrying under the situation of TPC command word at the control channel E-AGCH frame structure of expansion, when the CRC check result is correct; UE is according to said TPC command word, to the closed loop amount P that UE safeguarded
E-baseCalibrate.
Wherein, said TPC command word comprises: numerical value 0 or numerical value 1; Wherein, P is raised in said numerical value 1 expression
E-base, corresponding, said numerical value 0 expression downward modulation P
E-basePerhaps, said numerical value 1 expression downward modulation P
E-base, corresponding, P is raised in said numerical value 0 expression
E-base
Wherein, this system also comprises: the power adjustment judging unit and the transmitting element of UE side; Wherein,
The power adjustment judging unit of said UE side is used for said UE basis to P
E-baseThe result of calibration judges the transmitting power of the E-PUCH corresponding with E-AGCH;
Said transmitting element is used to send said E-PUCH.
Wherein, the power of said UE side adjustment judging unit, when being further used for said TPC command word and being specially said numerical value 1, said to P
E-baseThe result of calibration is specially and adjusts upward power, judges the transmitting power that needs to increase said E-PUCH; Accordingly, when said TPC command word is specially said numerical value 0, said to P
E-baseThe result of calibration is specially downward adjustment power, judges the transmitting power that needs to reduce said E-PUCH; Perhaps,
When said TPC command word is specially said numerical value 1, said to P
E-baseThe result of calibration is specially downward adjustment power, judges the transmitting power that needs to reduce said E-PUCH; Accordingly, when said TPC command word is specially said numerical value 0, said to P
E-baseThe result of calibration is specially and adjusts upward power, judges the transmitting power that needs to increase said E-PUCH.
Wherein, This system also comprises: the alignment unit of network side, be used for receiving said E-PUCH when said network side, and the CRC check result is when correct; Network side is judged said UE and is correctly received said E-AGCH, the closed loop amount P that network side is safeguarded according to said TPC command word
E-baseCalibrate; When said network side did not receive said E-PUCH, network side was judged said UE and is not correctly received said E-AGCH, the closed loop amount P that keeps network side to safeguard
E-baseConstant.
The present invention carries the TPC command word in the control channel E-AGCH frame structure of expansion, when the CRC check result was correct, this TPC command word of carrying in the control channel E-AGCH frame structure of UE according to expansion was to the closed loop amount P that UE safeguarded
E-baseCalibrate.
Adopt the present invention, this TPC command word of carrying in the control channel E-AGCH frame structure according to expansion is calibrated the P that can avoid UE and network side to safeguard
E-baseBetween deviation appears, improve the accuracy of calibration.
Description of drawings
Fig. 1 is the sketch map of existing E-AGCH burst structure;
Fig. 2 is the sketch map of existing control channel E-AGCH frame structure;
Fig. 3 is the sketch map after the present invention expands control channel E-AGCH frame structure;
Fig. 4 is the schematic flow sheet of the inventive method embodiment.
Embodiment
Basic thought of the present invention is: in the control channel E-AGCH frame structure of expansion, carry the TPC command word, when the CRC check result was correct, this TPC command word of carrying in the control channel E-AGCH frame structure of UE according to expansion was to the closed loop amount P that UE safeguarded
E-baseCalibrate.
Here it is to be noted: the said closed loop amount of this paper is exactly P
E-base, do not give unnecessary details.Control channel E-AGCH frame structure as herein described and described E-AGCH burst structure are not same notions, and described control channel E-AGCH frame structure is meant the composition structure of E-AGCH channel institute carry data information; And described E-AGCH burst structure is meant the structure of E-AGCH channel itself; And the process of sending E-AGCH is meant and comprises from the tissue of E-AGCH frame structure and be carried to the process on the E-AGCH channel; The process and the process of transmitting that receive E-AGCH are opposite, do not give unnecessary details.
Below in conjunction with accompanying drawing the enforcement of technical scheme is done further to describe in detail.
Adopt prior art; UE calibrates according to the entrained TPC command word of the TPC field in the E-AGCH burst structure; When TPC territory decoding error and CRC check when correct, UE still can use this wrong TPC command word to carry out closed power control, thus the direction of wrong adjustment P
E-base, network side thinks that when receiving corresponding E-PUCH UE has received correct TPC command word and adjusted the P of UE side
E-base, network side is at this moment according to the P of TPC command word originally to its maintenance
E-baseValue is adjusted, the P that causes UE and network side to be safeguarded like this
E-baseBetween deviation appears; Make E-PUCH transmitting power and desired value depart from and influence the correct reception of E-PUCH or increased up interference; And employing the present invention; UE calibrates according to the entrained TPC command word of control channel E-AGCH frame structure of expansion, can guarantee that when CRC is correct the TPC command word of using also is correct, and network side thinks that when receiving corresponding E-PUCH UE has received correct TPC command word and adjusted the P of UE side
E-base, network side this moment can be to the P of its maintenance
E-baseValue is adjusted accordingly, the P that can avoid UE and network side to safeguard like this
E-baseBetween deviation appears, thereby the P that UE and network side are safeguarded
E-baseBetween be consistent.
The method of the closed loop amount that a kind of UE of calibration safeguarded, this method comprises:
In the control channel E-AGCH frame structure of expansion, carry the TPC command word; When the CRC check result was correct, this TPC command word of carrying in the control channel E-AGCH frame structure of UE according to expansion was to the closed loop amount P that UE safeguarded
E-baseCalibrate.
Further; Network side is when carrying out scheduling authorization; The TPC command word that obtains is carried in the control channel E-AGCH frame structure of this expansion, and UE uses the TPC command word of carrying in the control channel E-AGCH frame structure of this expansion to P that UE safeguarded after receiving E-AGCH and verifying that CRC is correct
E-baseCalibrate adjustment.
Further, obtaining the TPC command word is: network side compares through the quality target value that provides with high level and produces the TPC command word of closed loop.
Below to the present invention's elaboration of giving an example.
Instance: the control channel E-AGCH frame structure of expansion is as shown in Figure 3, comprises the indication of E-UCCH quantity, the TPC command word of newly-increased 1 bit and the CRC of 16 bits of specific information 2,3 bits of specific information 1,5 bits of attribute field, 2 bits of E-AGCH cyclic sequence number, 2 bits of time interval resource information, 3 bits of code resource information, 5 bits of absolute grant power, 4 bits of 5 bits.
Existing control channel E-AGCH frame structure is as shown in Figure 2, comprises the indication of E-UCCH quantity, the reservation position of 1 bit and the CRC of 16 bits of specific information 2,3 bits of specific information 1,5 bits of attribute field, 2 bits of E-AGCH cyclic sequence number, 2 bits of time interval resource information, 3 bits of code resource information, 5 bits of absolute grant power, 4 bits of 5 bits.Wherein, adopt the present invention, use this reservation position to carry the TPC command word, as shown in Figure 3.Here it is to be noted: the control channel E-AGCH frame structure of expansion shown in Figure 3 is the special case for explaining that scheme of the present invention is cited, is not to be used to limit the present invention.
TPC command word of the present invention is carried in the control channel E-AGCH frame structure of expansion, is 1 bit, and its value can be 0 or 1, can represent down or up respectively, also can represent up or down respectively, with indication P
E-baseThe adjustment direction, the step-length of adjustment is disposed by high level.That is to say that the TPC command word comprises: numerical value 0 or numerical value 1; Wherein, P is raised in numerical value 1 expression
E-base, corresponding, numerical value 0 expression downward modulation P
E-basePerhaps, numerical value 1 expression downward modulation P
E-base, corresponding, P is raised in numerical value 0 expression
E-base
Network side is carried at the TPC command word in the control channel E-AGCH frame structure of expansion when carrying out scheduling authorization, and UE uses the TPC command word of carrying in the control channel E-AGCH frame structure of expansion to P after receiving E-AGCH and verifying that CRC is correct
E-baseAdjust.Network side is thought the P that received the also correct adjustment of E-AGCH that UE is correct after receiving the E-PUCH corresponding with this E-AGCH that UE sends
E-baseValue, network side is to the P of its maintenance at this moment
E-baseAdjust accordingly.
Here it is to be noted: as shown in Figure 3 is the control channel E-AGCH frame structure of expansion.Shown in Figure 1 is the E-AGCH burst structure, and the training sequence among Fig. 1 representes that with Midamble the SS territory is synch command word territory; The TPC territory is power control commands word territory.
Method embodiment: NodeB and the P of UE to being safeguarded separately
E-baseThe flow process of calibration.
Flow process as shown in Figure 4 may further comprise the steps:
Step 101:NodeB compares through the quality target value that provides with high level and produces the TPC command word of closed loop.
The control channel E-AGCH frame structure of step 102:NodeB tissue expansion is inserted the TPC command word, and coding, physical channel mapping process before sending.
Step 103:NodeB sends E-AGCH.
Step 104:UE receives E-AGCH and obtains the TPC command word.
Here, this step is specially: UE judges whether CRC is correct after receiving E-AGCH, if CRC is correct, and the TPC command word of then resolving E-AGCH and obtaining wherein to carry, execution in step 105; If judge that CRC is incorrect, then abandon the content of this reception.
Step 105:UE is according to obtaining TPC order adjustment P
E-baseValue.
Step 106:UE is according to P
E-baseThe result of adjustment, the transmitting power of decision and the corresponding E-PUCH of E-AGCH, and send E-PUCH.
Step 107: when NodeB receives E-PUCH, and detect CRC when correct, think that UE correctly receives E-AGCH and adjusted the P that the UE side is safeguarded
E-base, NodeB is according to the adjustment of the TPC command word in the step 101 P that NodeB safeguarded
E-base
Step 108: when NodeB did not receive E-PUCH, NodeB thought that UE does not correctly receive E-AGCH, and this moment, NodeB kept the P of its maintenance
E-baseConstant.
A kind of system of calibrating the closed loop amount that subscriber equipment safeguards; This system comprises the alignment unit of UE side; The alignment unit of UE side is used for carrying under the situation of TPC command word at the control channel E-AGCH frame structure of expansion; When the CRC check result was correct, this TPC command word of carrying in the control channel E-AGCH frame structure of UE according to expansion was to the closed loop amount P that UE safeguarded
E-baseCalibrate.
This TPC command word of carrying in the control channel E-AGCH frame structure of expansion here, comprises: numerical value 0 or numerical value 1; Wherein, P is raised in numerical value 1 expression
E-base, corresponding, numerical value 0 expression downward modulation P
E-basePerhaps, numerical value 1 expression downward modulation P
E-base, corresponding, P is raised in numerical value 0 expression
E-base
Here, this system also comprises the power adjustment judging unit and the transmitting element of UE side; Wherein, the power of UE side adjustment judging unit is used for the UE basis to P
E-baseThe result of calibration judges the transmitting power of the E-PUCH corresponding with E-AGCH.Transmitting element is used to send E-PUCH.
Here, when this TPC command word of carrying in the control channel E-AGCH frame structure that the power of UE side adjustment judging unit is further used for expanding is specially numerical value 1, to P
E-baseThe result of calibration is specially and adjusts upward power, judges the transmitting power that needs to increase E-PUCH; Accordingly, when this TPC command word of carrying in the control channel E-AGCH frame structure of expansion is specially numerical value 0, to P
E-baseThe result of calibration is specially downward adjustment power, judges the transmitting power that needs to reduce E-PUCH; Perhaps,
When this TPC command word of carrying in the control channel E-AGCH frame structure of expansion is specially numerical value 1, to P
E-baseThe result of calibration is specially downward adjustment power, judges the transmitting power that needs to reduce E-PUCH; Accordingly, when this TPC command word of carrying in the control channel E-AGCH frame structure of expansion is specially numerical value 0, to P
E-baseThe result of calibration is specially and adjusts upward power, judges the transmitting power that needs to increase E-PUCH.
Here; This system also comprises the alignment unit of network side, and the alignment unit of network side is used for receiving E-PUCH when network side, and the CRC check result is when correct; Network side is judged UE and is correctly received E-AGCH, the closed loop amount P that network side is safeguarded according to the TPC command word
E-baseCalibrate; When network side did not receive E-PUCH, network side was judged UE and is not correctly received E-AGCH, the closed loop amount P that keeps network side to safeguard
E-baseConstant.
The above is merely preferred embodiment of the present invention, is not to be used to limit protection scope of the present invention.
Claims (11)
1. method of calibrating the closed loop amount that subscriber equipment safeguards is characterized in that this method comprises:
In the absolute grant channel of control channel enhancement type special channel (E-AGCH) frame structure of expansion, carry power control command (TPC) command word;
Verification is when (CRC) check results is correct, and subscriber equipment (UE) is according to said TPC command word, to the closed loop amount P that UE safeguarded
E-baseCalibrate.
2. method according to claim 1 is characterized in that, this method also comprises: when network side carries out scheduling authorization, the TPC command word that obtains is carried in the control channel E-AGCH frame structure of said expansion.
3. method according to claim 1 and 2 is characterized in that, said TPC command word comprises: numerical value 0 or numerical value 1; Wherein, P is raised in said numerical value 1 expression
E-base, corresponding, said numerical value 0 expression downward modulation P
E-basePerhaps, said numerical value 1 expression downward modulation P
E-base, corresponding, P is raised in said numerical value 0 expression
E-base
4. method according to claim 3 is characterized in that, said UE is according to said TPC command word, to the closed loop amount P that UE safeguarded
E-baseAfter calibrating, this method also comprises: said UE basis is to P
E-baseThe result of calibration judges the transmitting power of the enhanced uplink physical channel (E-PUCH) corresponding with E-AGCH, and sends said E-PUCH.
5. method according to claim 4 is characterized in that, when said TPC command word was specially said numerical value 1, this method also comprised: said to P
E-baseThe result of calibration is specially and adjusts upward power, judges the transmitting power that needs to increase said E-PUCH;
Accordingly, when said TPC command word was specially said numerical value 0, this method also comprised: said to P
E-baseThe result of calibration is specially downward adjustment power, judges the transmitting power that needs to reduce said E-PUCH; Perhaps,
When said TPC command word was specially said numerical value 1, this method also comprised: said to P
E-baseThe result of calibration is specially downward adjustment power, judges the transmitting power that needs to reduce said E-PUCH;
Accordingly, when said TPC command word was specially said numerical value 0, this method also comprised: said to P
E-baseThe result of calibration is specially and adjusts upward power, judges the transmitting power that needs to increase said E-PUCH.
6. method according to claim 5; It is characterized in that; This method also comprises: if said network side receives said E-PUCH; And the CRC check result is correct, and then network side is judged said UE and correctly received said E-AGCH, the closed loop amount P that network side is safeguarded according to said TPC command word
E-baseCalibrate;
If said network side does not receive said E-PUCH, then network side is judged said UE and is not correctly received said E-AGCH, the closed loop amount P that keeps network side to safeguard
E-baseConstant.
7. system of calibrating the closed loop amount that subscriber equipment safeguards; It is characterized in that; This system comprises: the alignment unit of UE side is used for carrying under the situation of TPC command word at the control channel E-AGCH frame structure of expansion, when the CRC check result is correct; UE is according to said TPC command word, to the closed loop amount P that UE safeguarded
E-baseCalibrate.
8. system according to claim 7 is characterized in that, said TPC command word comprises: numerical value 0 or numerical value 1; Wherein, P is raised in said numerical value 1 expression
E-base, corresponding, said numerical value 0 expression downward modulation P
E-basePerhaps, said numerical value 1 expression downward modulation P
E-base, corresponding, P is raised in said numerical value 0 expression
E-base
9. system according to claim 8 is characterized in that, this system also comprises: the power adjustment judging unit and the transmitting element of UE side; Wherein,
The power adjustment judging unit of said UE side is used for said UE basis to P
E-baseThe result of calibration judges the transmitting power of the E-PUCH corresponding with E-AGCH;
Said transmitting element is used to send said E-PUCH.
10. system according to claim 9 is characterized in that, the power of said UE side adjustment judging unit is when being further used for said TPC command word and being specially said numerical value 1, said to P
E-baseThe result of calibration is specially and adjusts upward power, judges the transmitting power that needs to increase said E-PUCH; Accordingly, when said TPC command word is specially said numerical value 0, said to P
E-baseThe result of calibration is specially downward adjustment power, judges the transmitting power that needs to reduce said E-PUCH; Perhaps,
When said TPC command word is specially said numerical value 1, said to P
E-baseThe result of calibration is specially downward adjustment power, judges the transmitting power that needs to reduce said E-PUCH; Accordingly, when said TPC command word is specially said numerical value 0, said to P
E-baseThe result of calibration is specially and adjusts upward power, judges the transmitting power that needs to increase said E-PUCH.
11. system according to claim 10; It is characterized in that; This system also comprises: the alignment unit of network side, be used for receiving said E-PUCH when said network side, and the CRC check result is when correct; Network side is judged said UE and is correctly received said E-AGCH, the closed loop amount P that network side is safeguarded according to said TPC command word
E-baseCalibrate; When said network side did not receive said E-PUCH, network side was judged said UE and is not correctly received said E-AGCH, the closed loop amount P that keeps network side to safeguard
E-baseConstant.
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| US20070173279A1 (en) * | 2006-01-20 | 2007-07-26 | Nec Corporation | Transmission power control technique and wireless communications system using the same |
| CN101291523A (en) * | 2007-04-17 | 2008-10-22 | 大唐移动通信设备有限公司 | Method, base station and user terminal for control channel to bear control information |
| CN101359937A (en) * | 2007-08-01 | 2009-02-04 | 中兴通讯股份有限公司 | Reinforced uplink power control method |
| CN101765191A (en) * | 2008-12-25 | 2010-06-30 | 大唐移动通信设备有限公司 | Power control method and user equipment |
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2010
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070173279A1 (en) * | 2006-01-20 | 2007-07-26 | Nec Corporation | Transmission power control technique and wireless communications system using the same |
| CN101291523A (en) * | 2007-04-17 | 2008-10-22 | 大唐移动通信设备有限公司 | Method, base station and user terminal for control channel to bear control information |
| CN101359937A (en) * | 2007-08-01 | 2009-02-04 | 中兴通讯股份有限公司 | Reinforced uplink power control method |
| CN101765191A (en) * | 2008-12-25 | 2010-06-30 | 大唐移动通信设备有限公司 | Power control method and user equipment |
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