CN102045823B - Method, system and equipment for controlling power - Google Patents
Method, system and equipment for controlling power Download PDFInfo
- Publication number
- CN102045823B CN102045823B CN200910236330.XA CN200910236330A CN102045823B CN 102045823 B CN102045823 B CN 102045823B CN 200910236330 A CN200910236330 A CN 200910236330A CN 102045823 B CN102045823 B CN 102045823B
- Authority
- CN
- China
- Prior art keywords
- power control
- control information
- channel
- power
- channels
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Mobile Radio Communication Systems (AREA)
Abstract
The embodiment of the invention discloses a method, a system and equipment for controlling power. The method comprises the following steps of: sending power control information to a terminal to ensure that the terminal acquires the power control information, regulating the power according to the power control information, and then sending an uplink channel to a network; and receiving the uplink channel sent by the terminal, wherein the uplink channel is transmitted by the terminal according to regulated transmitting power. Through the invention, the transmitting power of the uplink channel is timely regulated or initialized so as to improve the performance of the uplink channel, improve the convergence rate of close-ring power control, improve the accuracy of uplink open-ring power control and improve the affirmation success rate of uplink feedback channels.
Description
Technical field
The present invention relates to communication technical field, particularly relate to a kind of Poewr control method, system and equipment.
Background technology
In CDMA (Code-Division Multiple Access, code division multiple access) system, power control techniques is a kind of reduction in community and the important technology of presence of intercell interference.HSPA (High-Speed PacketAccess, high-speed packet access) up channel of system comprises HS-SICH (High Speed SharedInformation Channel, high-speed shared information channel), E-RUCCH (E-RUCCH, E-DCHRandom Access Uplink Control Channel, E-DCH accesses ascending control channel at random), E-PUCH (E-DCH Physical Uplink Channel, E-DCH physical uplink channel), down channel comprises E-AGCH (E-DCH Absolute Grant Channel, the absolute access channel of E-DCH), HS-SCCH (High-Speed Shared Control Channel, High-Speed Shared Control Channel), HS-PDSCH (High-Speed Physical Downlink Shared Channel, High-Speed Physical Downlink Shared Channel), E-HICH (E-DCH HARQ Acknowledgement Indicator Channel, E-DCH HARQ confirms indicating channel).In standard, in up channel, E-RUCCH is not used open loop power control owing to having down channel to match; HS-SICH do open loop power control (in HCR TDD) or with HS-SCCH or HS-PDSCH group to doing closed-loop power control; E-PUCH and E-AGCH or E-HICH group are controlled power, the initial value that during open loop power control, general networking side can be controlled by power of high-level signaling notification terminal, be target expectation received power, terminal accordingly and the path loss of measuring oneself transmitting power is set.Close-loop power control is that terminal is received after the reference expected received power of network control, take this reference expected received power as basis, and the TPC command word of at every turn carrying according to its corresponding down channel is with the progressive adjustment transmitting power of step-length of network side configuration.
Introduce the Poewr control method of each channel below:
E-RUCCH channel open loop power control: P
e-RUCCH=L
p-CCPCH+ PRX
e-RUCCHdes+ (i
upPCH-1) * Pwr
ramp.Wherein, L
p-CCPCHfor the path loss that terminal is measured, PRX
e-RUCCHdesfor E-RUCCH expectation received power, Pwr
rampfor the power step-length of climbing, i
upPCHnumber of times for the random access of up enhancing.
The open loop of HS-SICH channel is: P
hS-SICH=PRX
hS-SICHdes+ L
p-CCPCH; Closed-loop power control is:
Wherein, L
p-CCPCHfor the path loss that terminal is measured, PRX
hS-SICHdesfor HS-SICH expectation received power.
The closed-loop power control that the open loop of E-PUCH channel is auxiliary: P
e-PUCH=P
e-base+ L
p-CCPCH+ β
e.Wherein,
L
p-CCPCHfor the path loss that terminal is measured, PRX
des_basefor E-PUCH reference expected received power, β
efor gain factor corresponding to transmission block that E-PUCH E-TFC selects, step is that inner-loop power control is adjusted step-length.
In realizing process of the present invention, inventor finds prior art, and at least there are the following problems:
In HSPA system because DPCH is followed in existence, above up channel can be with reference to the transmitting power of following DPCH when not launching for a long time, to such an extent as to that ascending power arranges is can deviation not excessive, but in HSPA+ system, it is in most of the cases non-existent following DPCH.Therefore,, after above up channel is not dispatched for a long time, how Initial Trans arranges the convergence rate that not only affects inner-loop power control, also can affect the accuracy of open loop power control, and the success rate of feedback acknowledgment.
Summary of the invention
Embodiments of the invention provide a kind of Poewr control method, system and equipment, the transmitting power that is used for adjustment in time or initialization up channel, the performance of lifting up channel, the convergence rate of quickening closed-loop power control, improve the accuracy of uplink open-loop power control, and the success rate of feedback acknowledgment.
Embodiments of the invention provide a kind of Poewr control method, comprising:
To terminal transmission power control information, make described terminal obtain power control information and make described terminal carry out to network side, sending up channel after power adjustment according to described power control information;
Receive the up channel that described terminal sends, described up channel is launched according to the transmitting power after adjusting by described terminal.
Wherein,
Described power control information comprises following one or more: the power control information of specified upstream channel; Or the public power control information of a plurality of up channels; Or a plurality of up channels power control information separately; Each power control information comprises: uplink interference reference quantity; Or new expectation received power; Or closed power adjustment amount; Described uplink interference reference quantity comprises: the uplink interference reference power that each ascending time slot is average; Or the interference reference power of the interference reference power of control channel place time slot and Traffic Channel place time slot; Or each ascending time slot uplink interference reference power independently; Described uplink interference reference power comprises: uplink interference power; Or the power offset sum of uplink interference power and network side use;
Described terminal is obtained power control information and is specifically comprised:
When network side carries the power control information of specified upstream channel in power control information, described terminal is obtained the power control information of described specified upstream channel;
When network side carries the public power control information of a plurality of up channels in power control information, described terminal is obtained the public power control information of described a plurality of up channel.
When network side carries a plurality of up channels separately independently during power control information in power control information simultaneously, described terminal is obtained the power control information of described a plurality of up channels.
Wherein,
Described terminal also comprises before carrying out power adjustment according to described power control information: according to Transmission Time Interval thresholding, judge whether to adopt described power control information to carry out power control;
When described power control information is power control information separately of specified upstream channel or a plurality of up channel, if arbitrary channels transmit is interval greater than described Transmission Time Interval thresholding in described specified upstream channel or a plurality of up channel, described terminal adopts power control information corresponding to described arbitrary channel to carry out power control to described arbitrary channel; Otherwise described terminal adopts original power control mode;
When described power control information is the public power control information of a plurality of up channels, if the Transmission Time Interval of arbitrary channel is greater than described Transmission Time Interval thresholding in described a plurality of up channel, described terminal adopts the public power control information of described a plurality of up channels to carry out power control to described arbitrary channel; Otherwise described terminal adopts original power control mode.
Wherein,
When network does not carry the power control information of arbitrary up channel, and the Transmission Time Interval of described arbitrary up channel is greater than described Transmission Time Interval thresholding, and when existence other up channel Transmission Time Interval except described arbitrary up channel are less than described Transmission Time Interval thresholding, described terminal adopts the power control information relevant to described other up channels to carry out power adjustment to described arbitrary channel;
The relevant power control information of described and described other up channels comprises: the transmitting power of described other up channels; Demodulation performance with up channel; Difference with the service quality QoS of described up channel and described other up channels.
Wherein,
Channel to terminal transmission power control information comprises: HS-SCCH or E-AGCH, the up channel that terminal sends comprises: HS-SICH or E-RUCCH or E-PUCH.
The embodiment of the present invention provides a kind of power control system, comprising:
Network side, for to terminal transmission power control information, makes described terminal obtain power control information and makes described terminal carry out to network side, sending up channel after power adjustment according to described power control information; Receive the up channel that described terminal sends, described up channel is launched according to the transmitting power after adjusting by described terminal;
Terminal, the power control information sending for receiving described network side; Obtain described power control information and carry out power adjustment according to described power control information; According to the transmitting power after described adjustment, to described network side, send described up channel.
The embodiment of the present invention provides a kind of terminal, comprising:
Acquisition module, the power control information sending for receiving network side;
Adjusting module, carries out power adjustment for the described power control information obtaining according to described acquisition module;
Sending module, sends up channel for the transmitting power after adjusting according to described adjusting module to described network side.
Wherein,
Described power control information comprises following one or more: the power control information of specified upstream channel; Or the public power control information of a plurality of up channels; Or a plurality of up channels power control information separately; Each power control information comprises: uplink interference reference quantity; Or new expectation received power; Or closed power adjustment amount; Described uplink interference reference quantity comprises: the uplink interference reference power that each ascending time slot is average; Or the interference reference power of the interference reference power of control channel place time slot and Traffic Channel place time slot; Or each ascending time slot uplink interference reference power independently; Described uplink interference reference power comprises: uplink interference power; Or the power offset sum of uplink interference power and network side use;
Described acquisition module specifically for:
When network side carries the power control information of specified upstream channel in power control information, described acquisition module obtains the power control information of described specified upstream channel;
When network side carries the public power control information of a plurality of up channels in power control information, described acquisition module obtains the power control information public with described a plurality of up channels.
When network side carries the power control information of a plurality of up channels in power control information simultaneously, described acquisition module obtains the power control information of described a plurality of up channels.
Wherein, also comprise: judge module, adopts the described power control information that described acquisition module obtains to carry out power control for judging whether according to Transmission Time Interval thresholding; Described adjusting module specifically for:
When described power control information is power control information separately of specified upstream channel or a plurality of up channel, if described judge module judges that in described specified upstream channel or a plurality of up channel, arbitrary channels transmit is interval greater than described Transmission Time Interval thresholding, described adjusting module adopts power control information corresponding to described arbitrary channel to carry out power control to described arbitrary channel; Otherwise described adjusting module adopts original power control mode;
When described power control information is the public power control information of a plurality of up channels, if the Transmission Time Interval of arbitrary channel is greater than described Transmission Time Interval thresholding in the described a plurality of up channels of described judge module judgement, described adjusting module adopts the public power control information of described a plurality of up channels to carry out power control to described arbitrary channel; Otherwise described adjusting module adopts original power control mode.
Wherein, described adjusting module also for:
When network does not carry the power control information of arbitrary up channel, and the Transmission Time Interval of the described arbitrary up channel of described judge module judgement is greater than described Transmission Time Interval thresholding, and when existence other up channel Transmission Time Interval except described arbitrary up channel are less than described Transmission Time Interval thresholding, described adjusting module adopts the power control information relevant to described other up channels to carry out power adjustment to described arbitrary channel; Otherwise described terminal adopts original power control mode;
The relevant power control information of described and described other up channels comprises: the transmitting power of described other up channels; Demodulation performance with up channel; Difference with the service quality QoS of described up channel and described other up channels.
Wherein,
The channel of received power control information comprises: HS-SCCH or E-AGCH, the up channel of transmission comprises: HS-SICH or E-RUCCH or E-PUCH.
The embodiment of the present invention provides a kind of network equipment, it is characterized in that, comprising:
Sending module, for to terminal transmission power control information, makes described terminal obtain power control information and carry out to network side, sending up channel after power adjustment according to described power control information;
Receiver module, receives the up channel that described terminal sends, and described up channel is launched according to the transmitting power after adjusting by described terminal.
Wherein,
Described power control information comprises following one or more: the power control information of specified upstream channel; Or the public power control information of a plurality of up channels; Or a plurality of up channels power control information separately; Each power control information comprises: uplink interference reference quantity; Or new expectation received power; Or closed power adjustment amount; Described uplink interference reference quantity comprises: the uplink interference reference power that each ascending time slot is average; Or the interference reference power of the interference reference power of control channel place time slot and Traffic Channel place time slot; Or each ascending time slot uplink interference reference power independently; Described uplink interference reference quantity comprises: uplink interference power; Or the power offset sum of uplink interference power and network side use.
Wherein, the channel to terminal transmission power control information comprises: HS-SCCH or E-AGCH, the up channel that receiving terminal sends comprises: HS-SICH or E-RUCCH or E-PUCH.
In the embodiment of the present invention, network side is by the transmitting power by reference to other up channels to terminal transmission power control information and terminal, adjust in time or the transmitting power of initialization up channel, with adaptive channel environment, promote the performance of up channel, accelerate the convergence rate of closed-loop power control, improve the accuracy of uplink open-loop power control, improve the confirmation success rate of uplink feedback channel.
Accompanying drawing explanation
In order to be illustrated more clearly in the present invention or technical scheme of the prior art, to the accompanying drawing of required use in the present invention or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the flow chart of a kind of method that in the embodiment of the present invention, power is controlled;
Fig. 2 is the flow chart of a kind of method that in the embodiment of the present invention, power is controlled;
Fig. 3 is the flow chart of a kind of method that in the embodiment of the present invention, power is controlled;
Fig. 4 is the flow chart of a kind of method that in the embodiment of the present invention, power is controlled;
Fig. 5 is the flow chart of a kind of method that in the embodiment of the present invention, power is controlled;
Fig. 6 is the flow chart of a kind of method that in the embodiment of the present invention, power is controlled;
Fig. 7 is the flow chart of a kind of method that in the embodiment of the present invention, power is controlled;
Fig. 8 is the flow chart of a kind of method that in the embodiment of the present invention, power is controlled;
Fig. 9 is the structural representation of a kind of terminal in the embodiment of the present invention;
Figure 10 is the structural representation of a kind of terminal in the embodiment of the present invention;
Figure 11 is the structural representation of a kind of network equipment in the embodiment of the present invention.
Embodiment
Embodiments of the invention propose: network side is after terminal transmission power control information, and described terminal is obtained power control information and carried out power adjustment according to described power control information, and to network side, send up channel according to the transmitting power after adjusting.
Below in conjunction with the accompanying drawing in the present invention, the technical scheme in the present invention is carried out to clear, complete description, obviously, described embodiment is a part of embodiment of the present invention, rather than whole embodiment.Embodiment based in the present invention, the every other embodiment that those of ordinary skills obtain under the prerequisite of not making creative work, belongs to the scope of protection of the invention.
HSPA+ (Evolved High Speed Packet Access, evolved high speed grouping access) in, introduced the special HS-SCCH channel format (being called for short HS-SCCHorder) of physical layer for transmission order order, by it, can realize: the issuing and confirm of the operation such as distribution of descending semi-continuous resource/reshuffle/regain, terminal control channel DRX (Discontinuous Receive, discontinuous reception) activation/deactivation, removing the synchronization of following after channel keeps, and enhancing CELL_FACH (CELLForward Access Channel, CELL forward direction Random Access Channel, terminal RRC (Radio ResourceControl, Radio Resource is controlled) state a kind of) terminal of issuing orders initiates the functions such as uplink synchronous process.Simultaneously, in HSPA+ system, also introduced special E-AGCH form, also can carry out the distribution of up half-persistence scheduling resources/reshuffle/regain and wait operation, HS-SICH and E-RUCCH generally can be used the confirmation of physical layer order order or interoperability as terminal.Such as, HS-SCCH order, carry out issuing and confirming of the operations such as the distribution of semi-continuous resource/reshuffle/regain together with HS-SICH, HS-SCCH and E-RUCCH are used for strengthening under CELL_FACH state, and network side notification terminal is initiated uplink synchronous process.
Consider in mobile radio system, channel condition is constantly to change, when HS-SICH or E-RUCCH or Traffic Channel E-PUCH can not get transmission opportunity for a long time, the transmitting power that the closed-loop power control of HS-SICH and E-PUCH is safeguarded has no longer been applicable to current channel status, the E-RUCCH Initial Trans that network side issues is also no longer applicable, therefore, if continue to use, can affect the convergence rate of inner-loop power control and the accuracy of open loop power control, affect the performance of up channel.In HSPA+ system, up channel is also being born the feedback effect of physical layer control signal in particular moment simultaneously, and therefore, the transmitting power of up channel arranges the success rate that is rationally conducive to feedback acknowledgment.The embodiment of the present invention, for the problems referred to above, has proposed the method that power is controlled.
The embodiment of the present invention provides a kind of Poewr control method, as shown in Figure 1, specifically comprises the following steps:
The embodiment of the present invention provides a kind of Poewr control method, and as shown in Figure 2, HS-SCCH order carries power control information, specifically comprises the following steps:
Wherein, the uplink interference reference quantity that power control information can be estimated for network side or new expectation received power or new P
e-baseif carry new expectation received power and only carry the new P for E-PUCH
e-basebe the power control information of specified upstream channel, the expectation received power that a plurality of channels are new if carry simultaneously or simultaneously carry expectation received power and new P
e-base, be and carry a plurality of up channels power control information independently separately, if carry for all up channels or shared uplink interference reference quantity or the P of part up channel
e-basetime, be the public power control information of a plurality of channels.
Preferably, while carrying uplink interference reference quantity, this uplink interference reference quantity can be a uplink interference reference power, i.e. the average uplink interference reference power of each ascending time slot; Also can be two-part uplink interference reference power, a part be the interference reference power of control channel place time slot, and another part is the interference reference power of Traffic Channel place time slot; Also can be independently uplink interference reference power of each ascending time slot.
Preferably, while carrying uplink interference reference quantity, described interference reference power can be the power excursion sum of uplink interference power or uplink interference power and network side use.
For HS-SICH,
While carrying uplink interference reference power:
P
HS-SICH＝β
HS-SICH+L
P-CCPCH+I (1)
While carrying new up expectation received power:
P
HS-SICH＝PRX
HS-SICHdes_new+L
P-CCPCH (2)
Carry new P
e-basetime:
Wherein,
I is uplink interference reference power, and I can be the interference reference power of HS-SICH special use, is the power control information of specified upstream channel; Also can be with E-RUCCH or be positioned at the public interference reference power of the E-PUCH of control slot, be the uplink interference reference power of control channel place time slot, the i.e. public power control information of a plurality of up channels; L
p-CCPCHfor the path loss of measuring; β
hS-SICHfor demodulation threshold, such as the signal to noise ratio requirement of HS-SICH Block Error Rate 0.1% time; PRX
hS-SCCHdes_newfor the up expectation received power of new HS-SICH;
for new P
e-base.
For E-RUCCH,
While carrying uplink interference reference power:
P
E-RUCCH＝L
P-CCPCH+PRX
E-RUCCHdes_new+(i
UpPCH-1)*Pwr
ramp (4)
While carrying new up expectation received power:
P
E-RUCCH＝β
E-RUCCH+L
P-CCPCH+I (5)
Carry new P
e-basetime:
Wherein, I is uplink interference reference power, I can be the interference reference power of E-RUCCH special use, also can be with HS-SICH or be positioned at the public interference reference power of the E-PUCH of control slot, be the uplink interference reference power of control channel place time slot, the different occupation modes of I have determined that it is the power control information of specified upstream channel or the common control information of a plurality of up channels; L
p-CCPCHfor the path loss of measuring, β
e-RUCCHfor demodulation threshold, Pwr
rampfor the power step-length of climbing, i
upPCHtime religion for the random access of up enhancing.
For E-PUCH,
While carrying uplink interference reference power:
P
E-PUCH＝I+L
P-CCPCH+β
e (7)
While carrying new up expectation received power:
P
E-PUCH＝PRX
des-base_new+L
P-CCPCH+β
e (8)
Carry new P
e-basetime:
P
E-PUCH＝P
e-base_new+L
P-CCPCH+β
e (9)
Wherein, I is uplink interference reference power, I can be the uplink interference reference power of E-PUCH special use, also can be the public interference reference power of control slot when E-PUCH and HS-SICH or E-RUCCH coexistence control slot, also can be the public uplink interference reference power of the business time-slot of E-PUCH in business time-slot, the different occupation modes of I have determined that it is the power control information of specified upstream channel or the common control information of a plurality of up channels; P
e-base_newfor new closed power adjustment amount, same, P
e-absedifferent occupation modes determined that it is the power control information of specified upstream channel or the common control information of a plurality of up channels; L
p-CCPCHfor the path loss of measuring; β
egain factor corresponding to transmission block for E-PUCH E-TFC selection.
Preferably, terminal can be selected according to the transmission intercal of up channel.When up channel adopts closed-loop power control, if this transmitting with the Transmission Time Interval of transmitting last time higher than Transmission Time Interval thresholding K, use the uplink interference reference power of indicating in HS-SCCH order or new expectation received power or new P
e-baseaccording to the transmitting power of above-mentioned formula initialization up channel; If this transmitting lower than Transmission Time Interval thresholding K, continues to adopt former close-loop power control mode with the Transmission Time Interval of transmitting last time.
Described Transmission Time Interval thresholding can be that network side configuration or network and terminal are made an appointment.
Preferably, described up channel can be HS-SICH, E-RUCCH channel for feedback acknowledgment information, can be also E-PUCH transmission uplink service information, can be also after the long HS-SICH that carries normal information and the E-RUCCH of Transmission Time Interval.
In the embodiment of the present invention, network side passes through to terminal transmission power control information, adjust in time or the transmitting power of initialization up channel, with adaptive channel environment, promote the performance of up channel, accelerate the convergence rate of closed-loop power control, improve the accuracy of uplink open-loop power control, improve the confirmation success rate of uplink feedback channel.
The embodiment of the present invention provides a kind of Poewr control method, and as shown in Figure 3, HS-SCCH order carries power control information, and this power control information is uplink interference reference power, specifically comprises the following steps:
Wherein, uplink interference reference power is the average uplink interference power of each ascending time slot, is the public power control information of a plurality of channels.
Particularly, terminal is according to the power control information receiving, and the path loss of the demodulation threshold of oneself and measurement, the transmitting power of HS-SICH is set as shown in formula (10):
P
HS-SICH＝I+L
P-CCPCH+β
HS-SICH (10)
Wherein, I is uplink interference reference power, L
p-CCPCHfor the path loss of measuring, β
hS-SICHfor demodulation threshold, such as the signal to noise ratio requirement of HS-SICH Block Error Rate 0.1% time.
Now, terminal it is also conceivable that the transmission intercal of HS-SICH.When HS-SICH adopts closed-loop power control, if the Transmission Time Interval of this transmitting of HS-SICH and transmitting last time is higher than Transmission Time Interval thresholding K, use the transmitting power of the interference reference power HS-SICH indicating in HS-SCCH order, if Transmission Time Interval is less than Transmission Time Interval thresholding K, continue to maintain closed-loop power control, thereby improve the accuracy that power is controlled.
The embodiment of the present invention provides a kind of Poewr control method, as shown in Figure 4, HS-SCCH order carries power control information, this power control information is uplink interference reference power, comprise for the uplink interference power of control channel place time slot with for the uplink interference power of Traffic Channel place time slot, described interference reference power is the public power control information of a plurality of channels, specifically comprises the following steps:
Particularly, terminal is according to the power control information receiving, and the path loss of the demodulation threshold of oneself and measurement, the transmitting power of HS-SICH and E-PUCH is set as shown in formula (11) and (12):
P
HS-SICH＝I
control+L
P-CCPCH+β
HS-SICH (11)
P
E-PUCH＝I
data+L
P-CCPCH+β
e (12)
Wherein, I
controlthe upper Behavioral interference reference power of control channel place time slot, for control channel, I
datafor the upper Behavioral interference reference power of Traffic Channel place time slot, for Traffic Channel, L
p-CCPCHfor the path loss of measuring, β
hS-SICHfor demodulation threshold, such as the signal to noise ratio requirement of HS-SICH Block Error Rate 0.1% time, β
egain factor corresponding to transmission block for E-PUCH E-TFC selection.
Now, terminal it is also conceivable that HS-SICH and E-PUCH transmission intercal separately.When HS-SICH adopts closed-loop power control, if the Transmission Time Interval of this transmitting of HS-SICH and transmitting last time is higher than Transmission Time Interval thresholding K, use the interference reference power of indicating in HS-SCCH order to adjust uplink channel transmission power according to above-mentioned formula, if Transmission Time Interval is less than Transmission Time Interval thresholding K, continue to maintain closed-loop power control, thereby improve the accuracy that power is controlled.
The embodiment of the present invention provides a kind of Poewr control method, and as shown in Figure 5, HS-SCCH order carries power control information, and HS-SICH and E-PUCH power control associating use, and this power control information is closed power adjustment amount P
e-base, described P
e-basebe the public power control information of a plurality of up channels, specifically comprise the following steps:
Wherein, this adjustment amount both can also can be for HS-SICH channel, P for E-PUCH channel
e-basethe interference level that has reflected channel.
Particularly, terminal is according to the power control information receiving, and the path loss of the demodulation threshold of oneself and measurement, the transmitting power of HS-SICH is set as shown in formula (13):
P
HS-SICH＝P
e-base+L
P-CCPCH+β
HS-SICH (13)
And the transmitting power of adjusting E-PUCH is as shown in formula (14):
P
E-PUCH＝P
e-base+L
P-CCPCH+β
e (14)
Wherein, P
e-basefor closed power adjustment amount, L
p-CCPCHfor the path loss of measuring, β
hS-SICHfor demodulation threshold, such as the signal to noise ratio requirement of HS-SICH Block Error Rate 0.1% time.
Now, terminal can also be combined the transmission intercal of considering HS-SICH and E-PUCH.When HS-SICH adopts closed-loop power control, if the Transmission Time Interval that this transmitting range of HS-SICH was launched HS-SICH and launched E-PUCH last time last time is all higher than Transmission Time Interval thresholding K, use the interference reference power of indicating in HS-SCCH order to adjust the transmitting power of HS-SICH, if Transmission Time Interval is less than Transmission Time Interval thresholding K, continue to maintain closed-loop power control, thereby improve the accuracy that power is controlled.While launching for E-PUCH, the same HS-SICH of mode of operation, repeats no more.
The embodiment of the present invention provides a kind of Poewr control method, as shown in Figure 6, HS-SCCH order carries power control information, and this power control information is the new up expectation received power of HS-SICH, the power control information that is specified upstream channel, specifically comprises the following steps:
Particularly, terminal is according to the power control information receiving, and the path loss of measuring, and the transmitting power of HS-SICH is set as shown in formula (15):
P
HS-SICH＝PRX
HS-SCCHdes_new+L
P-CCPCH (15)
Wherein, L
p-CCPCHfor the path loss of measuring, PRX
hS-SCCHdes_newfor the up expectation received power of new HS-SICH.
Strengthening under CELL_FACH, when network side needs terminal to initiate uplink synchronous process, by HS-SCCH order indicating terminal, terminal need to trigger E-RUCCH access procedure to realize uplink synchronous, network side is to terminal transmitting HS-SCCH order, terminal feedback E-RUCCH, as a confirmation, still can improve according to the operation scheme of above-described embodiment the success rate of uplink synchronous.Particularly, corresponding formula is: P
e-RUCCH=I+L
p-CCPCH+ β
e-RUCCH; And P
e-RUCCH=P
e-base+ L
p-CCPCH+ β
e-RUCCH; And P
e-RUCCH=PRX
e-RUCCHdes_new+ L
p-CCPCHin one or more.
For the invention described above embodiment, during close-loop power control, it is more useful that Transmission Time Interval thresholding is set, when wherein closed loop is not adjusted for a long time, the initialization of closed-loop power control is only preferably, for adjusting ratio closed loop more frequently, there is no need initialization.Certainly, the mechanism of Transmission Time Interval thresholding also can realize in base station side, because scheduling is carried out by base station, the Transmission Time Interval of terminal can be grasped in base station, above-mentioned information just can selectively be carried in base station in HS-SCCH order so, such as only the larger terminal in up channel interval being issued to described information, orders its initialization, whether end side can not arrange timer, according to existing described information to determine whether to carry out the initialization of power in HS-SCCH order.The information that HS-SCCH order carries can have some information bits or specific value to represent whether this HS-SCCH order channel has carried power control information, can also further represent to have carried special power control information or the common power control information of which channel.
The embodiment of the present invention provides a kind of Poewr control method, and as shown in Figure 7, with reference to the transmitting power of other up channels, demodulation performance and QoS difference are carried out power control, specifically comprise the following steps:
When step 702, terminal will send up channel, terminal is obtained the transmitting power of other up channels.
Particularly, adjust in the following manner:
For HS-SICH,
P
HS-SICH＝P
E-RUCCH+Δ
1 (16)
Or
P
HS-SICH＝P
E-PUCH+Δ
3 (17)
For E-RUCCH,
P
E-RUCCH＝P
HS-SICH-Δ
1 (18)
Or
P
E-RUCCH＝P
E-PUCH+Δ
2 (19)
Wherein, Δ
1, Δ
2, Δ
3for being respectively demodulation performance and the QoS discrepancy adjustment amount of HS-SICH, E-PUCH, E-RUCCH.
Preferably, whether terminal can determine whether adjusting self transmitting power according to other channel emission powers over Transmission Time Interval thresholding K according to the Transmission Time Interval of current up channel.Terminal can also according to the Transmission Time Interval of other up channels determine other up channels power can referential.For example: before detecting x time, whether T1 had other up channel transmittings in the time, if had, according to the difference of the demodulation performance of two channels, adjusted transmitting power, and wherein T1 is time window.
In the embodiment of the present invention, network side passes through to terminal transmission power control information, adjust in time or the transmitting power of initialization up channel, with adaptive channel environment, promote the performance of up channel, accelerate the convergence rate of closed-loop power control, improve the accuracy of uplink open-loop power control, improve the confirmation success rate of uplink feedback channel.
In the embodiment of the present invention, terminal is by reference to the transmitting power of other up channels, make up the large and shortcoming of power control poor performance of self Transmission Time Interval, and when certain up channel power control frequency is high, also can be used as the reference of other channels, flexibility and the performance of power control have been improved, thereby improve the convergence rate of inner-loop power control and the accuracy of open loop power control, improve the confirmation success rate of uplink feedback channel.
The embodiment of the present invention provides a kind of Poewr control method, as shown in Figure 8, and by carrying the power control information of current up channel and with reference to the transmitting power of other up channels, demodulation performance and QoS difference, specifically comprise the following steps:
When step 801, terminal are launched current up channel by observe and decide down channel whether carried terminal send the power control information of described current up channel.
Particularly, by the observe and decide down channel power control information whether carried terminal sends up channel, specifically comprise any in following two kinds of situations during the described current up channel of terminal transmitting:
(a) down channel carries the power control information that terminal sends current up channel, forwards step 802 to.
(b) down channel not carried terminal send the power control information of current up channel, forward step 803 to.
Particularly, checking whether other up channels were launched comprises any in following two kinds of situations:
(a) other up channels were launched, and forwarded step 804 to;
(b) other up channels were not launched, and forwarded step 805 to.
Preferably, step 802 can also judge whether the power control information that uses down channel to carry according to the Transmission Time Interval of current up channel, when Transmission Time Interval is less than Transmission Time Interval thresholding, does not use this power control information; When Transmission Time Interval is greater than Transmission Time Interval thresholding and has this power control information, directly use this power control information.
Preferably, step 803 can also judge whether the transmitting power with reference to other up channels according to the relation of the Transmission Time Interval of the Transmission Time Interval of current up channel and other up channels.For example: if the Transmission Time Interval of current up channel is less and down channel does not carry described information, terminal continues to carry out former power control mode; If the Transmission Time Interval of current up channel is large and down channel does not carry described information and other up channel Transmission Time Interval are less, terminal can be with reference to the transmitting power of other up channels.
In the embodiment of the present invention, network side is by the transmitting power by reference to other up channels to terminal transmission power control information and terminal, adjust in time or the transmitting power of initialization up channel, with adaptive channel environment, promote the performance of up channel, accelerate the convergence rate of closed-loop power control, improve the accuracy of uplink open-loop power control, improve the confirmation success rate of uplink feedback channel.
It should be noted that the HS-SCCH order that carries power control information in the embodiment of the present invention can be also the down channels such as E-AGCH order, FPACH.
The embodiment of the present invention provides a kind of power control system, comprising:
Network side, for to terminal transmission power control information, makes described terminal obtain power control information and makes described terminal carry out to network side, sending up channel after power adjustment according to described power control information; Receive the up channel that described terminal sends, described up channel is launched according to the transmitting power after adjusting by described terminal;
Terminal, the power control information sending for receiving described network side; Obtain described power control information and carry out power adjustment according to described power control information; According to the transmitting power after described adjustment, to described network side, send described up channel.
The embodiment of the present invention provides a kind of terminal 900, as shown in Figure 9, comprising:
Adjusting module 920, carries out power adjustment for the described power control information obtaining according to described acquisition module;
Sending module 930, sends up channel for the transmitting power after adjusting according to described adjusting module to described network side.
Wherein,
Described power control information comprises following one or more: the power control information of specified upstream channel; Or the public power control information of a plurality of up channels; Or a plurality of up channels power control information separately; Each power control information comprises: uplink interference reference quantity; Or new expectation received power; Or closed power adjustment amount; Described uplink interference reference quantity comprises: the uplink interference reference power that each ascending time slot is average; Or the interference reference power of the interference reference power of control channel place time slot and Traffic Channel place time slot; Or each ascending time slot uplink interference reference power independently; Described uplink interference reference power comprises: uplink interference power; Or the power offset sum of uplink interference power and network side use;
Described acquisition module specifically for:
When network side carries the power control information of specified upstream channel in power control information, described acquisition module obtains the power control information of described specified upstream channel;
When network side carries the public power control information of a plurality of up channels in power control information, described acquisition module obtains the power control information public with described a plurality of up channels.
When network side carries the power control information of a plurality of up channels in power control information simultaneously, described acquisition module obtains the power control information of described a plurality of up channels.
Wherein, as shown in figure 10, also comprise: judge module 940, adopts the described power control information that described acquisition module obtains to carry out power control for judging whether according to Transmission Time Interval thresholding; Described adjusting module specifically for:
When described power control information is power control information separately of specified upstream channel or a plurality of up channel, if described judge module judges that in described specified upstream channel or a plurality of up channel, arbitrary channels transmit is interval greater than described Transmission Time Interval thresholding, described adjusting module adopts power control information corresponding to described arbitrary channel to carry out power control to described arbitrary channel; Otherwise described adjusting module adopts original power control mode;
When described power control information is the public power control information of a plurality of up channels, if the Transmission Time Interval of arbitrary channel is greater than described Transmission Time Interval thresholding in the described a plurality of up channels of described judge module judgement, described adjusting module adopts the public power control information of described a plurality of up channels to carry out power control to described arbitrary channel; Otherwise described adjusting module adopts original power control mode.
Wherein, described adjusting module also for:
When network does not carry the power control information of arbitrary up channel, and the Transmission Time Interval of the described arbitrary up channel of described judge module judgement is greater than described Transmission Time Interval thresholding, and when existence other up channel Transmission Time Interval except described arbitrary up channel are less than described Transmission Time Interval thresholding, described adjusting module adopts the power control information relevant to described other up channels to carry out power adjustment to described arbitrary channel; Otherwise described terminal adopts original power control mode;
The relevant power control information of described and described other up channels comprises: the transmitting power of described other up channels; Demodulation performance with up channel; Difference with the service quality QoS of described up channel and described other up channels.
Wherein, the channel of received power control information comprises: HS-SCCH or E-AGCH, the up channel of transmission comprises: HS-SICH or E-RUCCH or E-PUCH.
The embodiment of the present invention provides a kind of network equipment 1100, as shown in figure 11, comprising:
Sending module 1110, for to terminal transmission power control information, makes described terminal obtain power control information and carry out to network side, sending up channel after power adjustment according to described power control information;
Receiver module 1120, receives the up channel that described terminal sends, and described up channel is launched according to the transmitting power after adjusting by described terminal.
Wherein,
Described power control information comprises following one or more: the power control information of specified upstream channel; Or the public power control information of a plurality of up channels; Or a plurality of up channels power control information separately; Each power control information comprises: uplink interference reference quantity; Or new expectation received power; Or closed power adjustment amount; Described uplink interference reference quantity comprises: the uplink interference reference power that each ascending time slot is average; Or the interference reference power of the interference reference power of control channel place time slot and Traffic Channel place time slot; Or each ascending time slot uplink interference reference power independently; Described uplink interference reference quantity comprises: uplink interference power; Or the power offset sum of uplink interference power and network side use.
Wherein, the channel to terminal transmission power control information comprises: HS-SCCH or E-AGCH, the up channel that terminal sends comprises: HS-SICH or E-RUCCH or E-PUCH.
In the embodiment of the present invention, network side is by the transmitting power by reference to other up channels to terminal transmission power control information and terminal, adjust in time or the transmitting power of initialization up channel, with adaptive channel environment, promote the performance of up channel, accelerate the convergence rate of closed-loop power control, improve the accuracy of uplink open-loop power control, improve the confirmation success rate of uplink feedback channel.
Through the above description of the embodiments, those skilled in the art can be well understood to the mode that the present invention can add essential general hardware platform by software and realize, and can certainly pass through hardware, but in a lot of situation, the former is better execution mode.Understanding based on such, the part that technical scheme of the present invention contributes to prior art in essence in other words can embody with the form of software product, this computer software product is stored in a storage medium, comprise that some instructions are with so that a station terminal equipment (can be mobile phone, personal computer, server, or the network equipment etc.) carry out the method described in each embodiment of the present invention.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be looked protection scope of the present invention.
Claims (12)
1. a Poewr control method, is characterized in that, comprising:
To terminal transmission power control information, make described terminal obtain power control information and make described terminal carry out to network side, sending up channel after power adjustment according to described power control information;
Receive the up channel that described terminal sends, described up channel is launched according to the transmitting power after adjusting by described terminal;
Wherein, described power control information comprises: uplink interference reference quantity; Or new expectation received power; Or closed power adjustment amount; Described terminal also comprises before carrying out power adjustment according to described power control information: according to Transmission Time Interval thresholding, judge whether to adopt described power control information to carry out power control;
When described power control information is power control information separately of specified upstream channel or a plurality of up channel, if arbitrary channels transmit is interval greater than described Transmission Time Interval thresholding in described specified upstream channel or a plurality of up channel, described terminal adopts power control information corresponding to described arbitrary channel to carry out power control to described arbitrary channel; Otherwise described terminal adopts original power control mode;
When described power control information is the public power control information of a plurality of up channels, if the Transmission Time Interval of arbitrary channel is greater than described Transmission Time Interval thresholding in described a plurality of up channel, described terminal adopts the public power control information of described a plurality of up channels to carry out power control to described arbitrary channel; Otherwise described terminal adopts original power control mode.
2. the method for claim 1, is characterized in that,
Described power control information comprises following one or more: the power control information of specified upstream channel; Or the public power control information of a plurality of up channels; Or a plurality of up channels power control information separately; Described uplink interference reference quantity comprises: the uplink interference reference power that each ascending time slot is average; Or the interference reference power of the interference reference power of control channel place time slot and Traffic Channel place time slot; Or each ascending time slot uplink interference reference power independently; Described uplink interference reference power comprises: uplink interference power; Or the power offset sum of uplink interference power and network side use;
Described terminal is obtained power control information and is specifically comprised:
When network side carries the power control information of specified upstream channel in power control information, described terminal is obtained the power control information of described specified upstream channel;
When network side carries the public power control information of a plurality of up channels in power control information, described terminal is obtained the public power control information of described a plurality of up channel;
When network side carries a plurality of up channels separately independently during power control information in power control information simultaneously, described terminal is obtained the power control information of described a plurality of up channels.
3. the method for claim 1, is characterized in that,
When network does not carry the power control information of arbitrary up channel, and the Transmission Time Interval of described arbitrary up channel is greater than described Transmission Time Interval thresholding, and when existence other up channel Transmission Time Interval except described arbitrary up channel are less than described Transmission Time Interval thresholding, described terminal adopts the power control information relevant to described other up channels to carry out power adjustment to described arbitrary channel;
The relevant power control information of described and described other up channels comprises: the transmitting power of described other up channels; Demodulation performance with up channel; Difference with the service quality QoS of described up channel and described other up channels.
4. the method for claim 1, is characterized in that,
Channel to terminal transmission power control information comprises: HS-SCCH or E-AGCH, the up channel that terminal sends comprises: HS-SICH or E-RUCCH or E-PUCH.
5. a power control system, is characterized in that, comprising:
Network side, for to terminal transmission power control information, makes described terminal obtain power control information and makes described terminal carry out to network side, sending up channel after power adjustment according to described power control information; Receive the up channel that described terminal sends, described up channel is launched according to the transmitting power after adjusting by described terminal;
Terminal, the power control information sending for receiving described network side; Obtain described power control information and carry out power adjustment according to described power control information; According to the transmitting power after described adjustment, to described network side, send described up channel;
Wherein, described power control information comprises: uplink interference reference quantity; Or new expectation received power; Or closed power adjustment amount; Described terminal also comprises before carrying out power adjustment according to described power control information: according to Transmission Time Interval thresholding, judge whether to adopt described power control information to carry out power control;
When described power control information is power control information separately of specified upstream channel or a plurality of up channel, if arbitrary channels transmit is interval greater than described Transmission Time Interval thresholding in described specified upstream channel or a plurality of up channel, described terminal adopts power control information corresponding to described arbitrary channel to carry out power control to described arbitrary channel; Otherwise described terminal adopts original power control mode;
When described power control information is the public power control information of a plurality of up channels, if the Transmission Time Interval of arbitrary channel is greater than described Transmission Time Interval thresholding in described a plurality of up channel, described terminal adopts the public power control information of described a plurality of up channels to carry out power control to described arbitrary channel; Otherwise described terminal adopts original power control mode.
6. a terminal, is characterized in that, comprising:
Acquisition module, the power control information sending for receiving network side;
Adjusting module, carries out power adjustment for the described power control information obtaining according to described acquisition module;
Sending module, sends up channel for the transmitting power after adjusting according to described adjusting module to described network side;
Wherein, described power control information comprises: uplink interference reference quantity; Or new expectation received power; Or closed power adjustment amount; Also comprise: judge module, adopts the described power control information that described acquisition module obtains to carry out power control for judging whether according to Transmission Time Interval thresholding;
Described adjusting module specifically for:
When described power control information is power control information separately of specified upstream channel or a plurality of up channel, if described judge module judges that in described specified upstream channel or a plurality of up channel, arbitrary channels transmit is interval greater than described Transmission Time Interval thresholding, described adjusting module adopts power control information corresponding to described arbitrary channel to carry out power control to described arbitrary channel; Otherwise described adjusting module adopts original power control mode;
When described power control information is the public power control information of a plurality of up channels, if the Transmission Time Interval of arbitrary channel is greater than described Transmission Time Interval thresholding in the described a plurality of up channels of described judge module judgement, described adjusting module adopts the public power control information of described a plurality of up channels to carry out power control to described arbitrary channel; Otherwise described adjusting module adopts original power control mode.
7. terminal as claimed in claim 6, is characterized in that,
Described power control information comprises following one or more: the power control information of specified upstream channel; Or the public power control information of a plurality of up channels; Or a plurality of up channels power control information separately; Described uplink interference reference quantity comprises: the uplink interference reference power that each ascending time slot is average; Or the interference reference power of the interference reference power of control channel place time slot and Traffic Channel place time slot; Or each ascending time slot uplink interference reference power independently; Described uplink interference reference power comprises: uplink interference power; Or the power offset sum of uplink interference power and network side use;
Described acquisition module specifically for:
When network side carries the power control information of specified upstream channel in power control information, described acquisition module obtains the power control information of described specified upstream channel;
When network side carries the public power control information of a plurality of up channels in power control information, described acquisition module obtains the power control information public with described a plurality of up channels;
When network side carries the power control information of a plurality of up channels in power control information simultaneously, described acquisition module obtains the power control information of described a plurality of up channels.
8. terminal as claimed in claim 6, is characterized in that, described adjusting module also for:
When network does not carry the power control information of arbitrary up channel, and the Transmission Time Interval of the described arbitrary up channel of described judge module judgement is greater than described Transmission Time Interval thresholding, and when existence other up channel Transmission Time Interval except described arbitrary up channel are less than described Transmission Time Interval thresholding, described adjusting module adopts the power control information relevant to described other up channels to carry out power adjustment to described arbitrary channel; Otherwise described terminal adopts original power control mode;
The relevant power control information of described and described other up channels comprises: the transmitting power of described other up channels; Demodulation performance with up channel; Difference with the service quality QoS of described up channel and described other up channels.
9. terminal as claimed in claim 6, is characterized in that,
The channel of received power control information comprises: HS-SCCH or E-AGCH, the up channel of transmission comprises: HS-SICH or E-RUCCH or E-PUCH.
10. a network equipment, is characterized in that, comprising:
Sending module, for to terminal transmission power control information, makes described terminal obtain power control information and carry out to network side, sending up channel after power adjustment according to described power control information;
Receiver module, receives the up channel that described terminal sends, and described up channel is launched according to the transmitting power after adjusting by described terminal;
Wherein, described power control information comprises: uplink interference reference quantity; Or new expectation received power; Or closed power adjustment amount; Described terminal also comprises before carrying out power adjustment according to described power control information: according to Transmission Time Interval thresholding, judge whether to adopt described power control information to carry out power control;
When described power control information is power control information separately of specified upstream channel or a plurality of up channel, if arbitrary channels transmit is interval greater than described Transmission Time Interval thresholding in described specified upstream channel or a plurality of up channel, described terminal adopts power control information corresponding to described arbitrary channel to carry out power control to described arbitrary channel; Otherwise described terminal adopts original power control mode;
When described power control information is the public power control information of a plurality of up channels, if the Transmission Time Interval of arbitrary channel is greater than described Transmission Time Interval thresholding in described a plurality of up channel, described terminal adopts the public power control information of described a plurality of up channels to carry out power control to described arbitrary channel; Otherwise described terminal adopts original power control mode.
11. network equipments as claimed in claim 10, is characterized in that,
Described power control information comprises following one or more: the power control information of specified upstream channel; Or the public power control information of a plurality of up channels; Or a plurality of up channels power control information separately; Described uplink interference reference quantity comprises: the uplink interference reference power that each ascending time slot is average; Or the interference reference power of the interference reference power of control channel place time slot and Traffic Channel place time slot; Or each ascending time slot uplink interference reference power independently; Described uplink interference reference quantity comprises: uplink interference power; Or the power offset sum of uplink interference power and network side use.
12. network equipments as claimed in claim 10, is characterized in that,
Channel to terminal transmission power control information comprises: HS-SCCH or E-AGCH, the up channel that receiving terminal sends comprises: HS-SICH or E-RUCCH or E-PUCH.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910236330.XA CN102045823B (en) | 2009-10-16 | 2009-10-16 | Method, system and equipment for controlling power |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910236330.XA CN102045823B (en) | 2009-10-16 | 2009-10-16 | Method, system and equipment for controlling power |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102045823A CN102045823A (en) | 2011-05-04 |
| CN102045823B true CN102045823B (en) | 2014-02-05 |
Family
ID=43911452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910236330.XA Active CN102045823B (en) | 2009-10-16 | 2009-10-16 | Method, system and equipment for controlling power |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102045823B (en) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102932809B (en) * | 2011-08-12 | 2015-02-18 | 鼎桥通信技术有限公司 | Uplink interference estimation and control method |
| CN104641697A (en) | 2013-07-30 | 2015-05-20 | 华为技术有限公司 | Method and device for obtaining downlink quality information |
| CN104349443B (en) * | 2013-08-09 | 2019-02-12 | 电信科学技术研究院 | A kind of ascending power control method and device |
| BR112016002405A2 (en) * | 2013-08-13 | 2017-08-01 | Fujitsu Ltd | Power control method for uplink channel, user equipment and communication system |
| CN104660385A (en) * | 2013-11-18 | 2015-05-27 | 马维尔国际有限公司 | Method and device of detecting high speed sharing control channel order in wideband code division multiple access system |
| CN105612792A (en) | 2014-03-18 | 2016-05-25 | 华为技术有限公司 | Power control method and device |
| CN106465289A (en) | 2014-05-08 | 2017-02-22 | 富士通株式会社 | Power control method for uplink channel, user equipment and communication system |
| CN107517497A (en) * | 2016-06-16 | 2017-12-26 | 中兴通讯股份有限公司 | Poewr control method, apparatus and system |
| US10945151B2 (en) * | 2016-11-24 | 2021-03-09 | Huawei Technologies Co., Ltd. | Data transmission rate control method and device |
| CN108206711B (en) | 2016-12-17 | 2019-02-01 | 上海朗帛通信技术有限公司 | A kind of UE for power adjustment, the method and apparatus in base station |
| CN108288982B (en) * | 2017-01-10 | 2019-07-23 | 上海朗帛通信技术有限公司 | A kind of UE for power adjustment, the method and apparatus in base station |
| WO2018157365A1 (en) * | 2017-03-03 | 2018-09-07 | 南通朗恒通信技术有限公司 | Method and apparatus for user equipment and base station used for power regulation |
| CN108632965B (en) | 2017-03-24 | 2023-08-22 | 华为技术有限公司 | Method and equipment for controlling uplink transmitting power |
| EP3879890A1 (en) * | 2017-05-05 | 2021-09-15 | Huawei Technologies Co., Ltd. | Method of power control for uplink transmission |
| CN107770856A (en) * | 2017-09-27 | 2018-03-06 | 北京空间技术研制试验中心 | Poewr control method for signal of communication between spacecraft |
| CN109617567A (en) | 2017-09-30 | 2019-04-12 | 株式会社Ntt都科摩 | Frequency expansion sequence selection method, the method for adjustment of transmission power and communication device |
| WO2020199219A1 (en) * | 2019-04-04 | 2020-10-08 | Oppo广东移动通信有限公司 | Power control method, terminal device and network device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101064538A (en) * | 2006-04-30 | 2007-10-31 | 中兴通讯股份有限公司 | Power control method for time-division synchronous CDMA communication system |
| CN101132203A (en) * | 2006-08-25 | 2008-02-27 | 大唐移动通信设备有限公司 | Control method for reinforcing power of uplink physical signal channel |
| CN101384069A (en) * | 2007-09-05 | 2009-03-11 | 大唐移动通信设备有限公司 | Power control parameter configuring method and related apparatus |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9955438B2 (en) * | 2005-09-27 | 2018-04-24 | Qualcomm Incorporated | Method and apparatus for carrier allocation and management in multi-carrier communication systems |
-
2009
- 2009-10-16 CN CN200910236330.XA patent/CN102045823B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101064538A (en) * | 2006-04-30 | 2007-10-31 | 中兴通讯股份有限公司 | Power control method for time-division synchronous CDMA communication system |
| CN101132203A (en) * | 2006-08-25 | 2008-02-27 | 大唐移动通信设备有限公司 | Control method for reinforcing power of uplink physical signal channel |
| CN101384069A (en) * | 2007-09-05 | 2009-03-11 | 大唐移动通信设备有限公司 | Power control parameter configuring method and related apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102045823A (en) | 2011-05-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102045823B (en) | Method, system and equipment for controlling power | |
| US11743832B2 (en) | Uplink power control for power limited terminals | |
| EP4240066A2 (en) | Method and device for determining transmission power | |
| US8521205B2 (en) | Preamble length for discontinuous control channel transmission | |
| EP2491750B1 (en) | Methods and arrangements in a communication network system | |
| US7346034B2 (en) | Cellular system, mobile station, base station and transmission power control method as well as program to be executed for implementing the method | |
| US7787430B2 (en) | Power control for gated uplink control channel | |
| CN101711054B (en) | Method and system for controlling long term evolution (LTE) uplink power | |
| CN101385250A (en) | Adaptive preamble length for continuous connectivity transmission | |
| CN103327594A (en) | Uplink power control method, equipment and system | |
| CN101572944A (en) | Resource selection method in random access and terminal apparatus | |
| CN101568173B (en) | Method, device and system for controlling power | |
| CN102340858B (en) | Method and device for setting target SINR (Signal-to-Interference and Noise Ratio) in PUSCH (Physical Uplink Shared Channel) power control | |
| WO2016122394A1 (en) | Method for enhancing the uplink performance of coverage-limited devices | |
| CN102158939B (en) | Method and system for power control in DTX (discontinuous transmission) | |
| CN101902810A (en) | Method and device for controlling power in multi-carrier mode | |
| CN102158940B (en) | Method and device for controlling power of retransmitting confirmation indication channel in high-speed uplink packet access | |
| CN102612129B (en) | Control method and control equipment for uplink close-loop power | |
| CN102111861A (en) | Method and equipment for controlling power of downlink control channel | |
| CN101765191A (en) | Power control method and user equipment | |
| CN100370706C (en) | A power control method | |
| CN1728585B (en) | Method for controlling power of forwarding link in use for circuit switching in TD-SCDMA | |
| CN104159318A (en) | Data transmission method and device | |
| CN104902552B (en) | Control the method and device of uplink power | |
| CN102026352A (en) | Uplink united power control method and downlink united power control method in high speed packet access |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100191 No. 40, Haidian District, Beijing, Xueyuan Road Patentee after: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY Address before: 100191 No. 40, Haidian District, Beijing, Xueyuan Road Patentee before: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY |
|
| CP01 | Change in the name or title of a patent holder | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210611 Address after: 100085 1st floor, building 1, yard 5, Shangdi East Road, Haidian District, Beijing Patentee after: DATANG MOBILE COMMUNICATIONS EQUIPMENT Co.,Ltd. Address before: 100191 No. 40, Haidian District, Beijing, Xueyuan Road Patentee before: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY |
|
| TR01 | Transfer of patent right |