CN102868503B - Power control method and device for physical hybrid repeat request indication channel (PHICH) - Google Patents
Power control method and device for physical hybrid repeat request indication channel (PHICH) Download PDFInfo
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- CN102868503B CN102868503B CN201110186849.9A CN201110186849A CN102868503B CN 102868503 B CN102868503 B CN 102868503B CN 201110186849 A CN201110186849 A CN 201110186849A CN 102868503 B CN102868503 B CN 102868503B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/30—TPC using constraints in the total amount of available transmission power
- H04W52/32—TPC of broadcast or control channels
- H04W52/325—Power control of control or pilot channels
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Abstract
The invention provides a power control method and device for a physical hybrid repeat request indication channel (PHICH). According to the control method, aiming at each terminal of a terminal group, a base station determines a first power and a second power according to power offset while the terminal is subject to PDCCH (physical downlink control channel) scheduling, and determines a third power of the terminal according to the fact that whether a quasi-orthogonal interfering terminal exists; determining the power of each terminal, and determining the power of the terminal group; and homogenizing the powers of the terminal group within a range corresponding to a maximum value and a minimum value of the PHICH power allocation. As the PHICH power of each terminal and the PHICH power of the terminal group are determined according to the situation that the terminal carries out the PDCCH scheduling, the performance of a downlink PHICH is identical to the performance of the PDCCH, so that unnecessary data retransmission of the terminal is avoided effectively, and meanwhile the pack loss phenomenon of uplink business data of the base station is avoided.
Description
Technical field
The present invention relates to wireless communication technique field, more particularly, to a kind of physical mixing retransmission indicating chanel (Physical
Hybrid-ARQ indicator channel, PHICH) Power Control method and device.
Background technology
In Long Term Evolution (Long Term Evolution, LTE) system, PHICH carries base station to up transmitting letter
The response message number made negative acknowledge character (Acknowledgement, NACK) and confirm character ACK (Acknowledgement)
Mission, the quality of PHICH performance directly determined the judgement for uplink service performance for the terminal.
And PHICH power is the principal element embodying PHICH performance, by being controlled to the power of PHICH, can keep away
Exempt from the unnecessary data re-transmitting of terminal, it is also possible to avoid the packet loss phenomenon of base station side uplink business data.
At present, the power of PHICH is controlled, mainly by the radio quality information of the downlink of terminal report,
It is mapped to the information of PHICH, to be controlled by indicating the presence or absence of transmission of uplink scheduling license of transmission of shared channel
The power of PHICH.But the radio quality information of the downlink of terminal to report can not react the shape of the channel of PHICH well
Condition, thus lead to determine PHICH power inaccurate, cause the unnecessary data re-transmitting of terminal, have impact on Consumer's Experience,
Cause the packet loss phenomenon of base station side uplink business data simultaneously.
Content of the invention
In view of this, the invention provides a kind of PHICH Poewr control method and device, in order to solve in prior art
PHICH Power Control is inaccurate, the terminal data that leads to retransmit and base station side packet loss problem.
The invention provides a kind of physical mixing retransmission indicating chanel PHICH Poewr control method, this control method includes：
Base station is directed to each terminal in set of terminal, carries out physical downlink control channel PDCCH scheduling according to this terminal
When power bias determine the first power, according to this terminal is carried out PDCCH scheduling when Downlink Control Information DCI format,
The channel control element CCE degree of polymerization, the second power with respect to PDCCH for the PHICH determining this terminal that tables look-up, existed according to this terminal
Whether there is quasi- orthogonal interference terminal in this set of terminal, determine the 3rd power of this terminal；
First power of each terminal according to determination, the second power and the 3rd power, determine the power of each terminal,
And determine the power of this set of terminal；
By the power of this set of terminal determining, it is compared with the maximum of the PHICH power distribution setting and minima,
The maximum and the minima that the power of described set of terminal are uniformed the PHICH power distribution of this setting are corresponding interval interior.
The invention provides a kind of physical mixing retransmission indicating chanel PHICH output control device, described device includes：
Terminal power determining module, for for each terminal in set of terminal, carrying out PDCCH scheduling according to this terminal
When power bias determine the first power, according to this terminal is carried out PDCCH scheduling when Downlink Control Information DCI format,
The channel control element CCE degree of polymerization, the second power with respect to PDCCH for the PHICH determining this terminal that tables look-up, existed according to this terminal
Whether there is quasi- orthogonal interference terminal in this set of terminal, determine the 3rd power of this terminal, according to the of each terminal determining
One power, the second power and the 3rd power, determine the power of each terminal；
Set of terminal power determination module, for the power according to each terminal in this set of terminal determining, determines this end
The power of end group；
Adjusting module, the power of this set of terminal for determining, the maximum and with the PHICH power distribution setting
Little value is compared, and the power of described set of terminal is uniformed the maximum of this PHICH power distribution and minima is corresponding
In interval.
The invention provides a kind of PHICH Poewr control method and device, in this control method, base station is directed to set of terminal
In each terminal, according to this terminal is carried out PDCCH scheduling when power bias determine the first power and the second power, according to
Determine the 3rd power of terminal with the presence or absence of quasi- orthogonal interference terminal；Determine the power of each terminal, and determine this set of terminal
Power；The power of described set of terminal is uniformed in maximum and the corresponding interval of minima of this PHICH power distribution.By
Situation when carrying out PDCCH scheduling according to terminal in the present invention, determines the PHICH power of each terminal in set of terminal simultaneously really
The PHICH power of this set of terminal fixed, it may therefore be assured that descending PHICH performance is consistent with PDCCH performance, such that it is able to effective
The unnecessary data re-transmitting avoiding terminal, it also avoid the packet loss phenomenon of base station side uplink business data simultaneously.
Brief description
Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the part of the present invention, this
Bright schematic description and description is used for explaining the present invention, does not constitute inappropriate limitation of the present invention.In the accompanying drawings：
A kind of PHICH power control process schematic diagram that Fig. 1 provides for the present invention；
A kind of detailed process schematic diagram of PHICH Power Control that Fig. 2 provides for the present invention；
The process schematic of PHICH Poewr control method in the LTE FDD system that Fig. 3 provides for the present invention；
PHICH power control process schematic diagram in the LTE TDD system that Fig. 4 provides for the present invention；
A kind of structural representation of PHICH output control device that Fig. 5 provides for the present invention.
Specific embodiment
In order that the technical problem to be solved, technical scheme and beneficial effect are clearer, clear, below tie
Close drawings and Examples, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only
In order to explain the present invention, it is not intended to limit the present invention.
The present invention in order to solve in prior art because PHICH Power Control is inaccurate, the terminal data leading to retransmit and
The problem of base station side packet loss, there is provided a kind of PHICH Poewr control method and device.
A kind of PHICH power control process schematic diagram that Fig. 1 provides for the present invention, this control process includes following step
Suddenly：
S101：Base station is directed to each terminal in set of terminal, carries out Physical Downlink Control Channel according to this terminal
Power bias during (Physical Downlink Control Channel, PDCCH) scheduling determine the first power.
S102：Base station is according to Downlink Control Information (the Downlink Control when this terminal is carried out with PDCCH scheduling
Information, DCI) form and channel control element (Control ChannelElement, the CCE) degree of polymerization, determination of tabling look-up
Second power with respect to PDCCH for the PHICH of this terminal.
Wherein, performance table can be obtained by emulating the performance of PHICH and PDCCH.Base station is according to selecting for this terminal
The DCI format of PDCCH scheduling, the CCE degree of polymerization and corresponding power bias, determine the first power and second work(of this terminal
Rate.
S103：Base station whether there is quasi- orthogonal interference terminal according to this terminal in this set of terminal, determines the of this terminal
Three power.
Wherein, quasi- orthogonal interference terminal refers in same PHICH set of terminal, and two terminals adopt in spectrum-spreading and scrambling
Orthogonal sequence be not completely orthogonal.
Above-mentioned steps S101, step S102 and step S103 are that order executes in no particular order, as long as obtaining in the present invention
Three power of terminal are taken.
S104：First power of each terminal according to determination, the second power and the 3rd power, determine each terminal
Power, and determine the power of this set of terminal.
Due to including multiple terminals in each set of terminal, when the sum according to the first power, the second power and the 3rd power
After determining the power of each terminal, the summation of each terminal power is obtained with the power of this set of terminal.
S105：By the power of this set of terminal determining, carry out with the maximum of the PHICH power distribution setting and minima
Relatively, the power of described set of terminal is uniformed in maximum and the corresponding interval of minima of this PHICH power distribution.
Wherein, maximum and the minima of PHICH power distribution are set in the present invention, wherein this PHICH power divides
The maximum joined and minima, are that base station is true according to the power allocation case of descending overall transmitted power and other channels descending
Fixed.
In the present invention situation during PDCCH scheduling is carried out according to terminal, determine the PHICH work(of each terminal in set of terminal
Rate simultaneously determines the PHICH power of this set of terminal, it may therefore be assured that descending PHICH performance is consistent with PDCCH performance, thus can
Effectively to avoid the unnecessary data re-transmitting of terminal, it also avoid the packet loss phenomenon of base station side uplink business data simultaneously.
Specifically, in the present invention in order to realize the Power Control to PHICH it is thus necessary to determine that in each set of terminal each is eventually
The power at end, when determining the first power according to power bias when each terminal is carried out with PDCCH scheduling, including：
Base station according to dispatch this terminal Physical Uplink Shared Channel (Physical uplink shared channel,
Corresponding power bias when PUSCH), this power bias are defined as the first power of this terminal.
Second power with respect to PDCCH for the described PHICH determining this terminal that tables look-up, including：
According to dispatch this terminal Physical Uplink Shared Channel PUSCH when DCI format and the CCE degree of polymerization, and emulation obtain
The PDCCH performance table taking and PHICH performance table, the second power with respect to PDCCH for the PHICH determining this terminal that tables look-up.
The DCI format adopting during the PUSCH of this terminal, the CCE degree of polymerization and corresponding power are dispatched in base station according to PDCCH
Biasing.Using this power bias as this terminal the first power, base station according to dispatch this terminal PUSCH when DCI format and
The CCE degree of polymerization, and emulate the PDCCH performance table obtaining and PHICH performance table, table look-up and determine that the PHICH of this terminal is relative
In the difference power of PDCCH, using this difference power as this terminal the second power.
Described according to this terminal in this set of terminal whether there is quasi- orthogonal interference terminal, determine the 3rd power of this terminal
Including：
Judge the quasi- orthogonal interference terminal with the presence or absence of this terminal in the set of terminal that this terminal is located；
When determining the quasi- orthogonal interference terminal that there is this terminal in this set of terminal, determine that the 3rd power of this terminal is to set
Fixed performance number δ, wherein, δ is the value more than 0；
Otherwise, the 3rd power of this terminal is 0.
Corresponding power bias when the corresponding PUSCH of this terminal is dispatched according to PDCCH in base station in the present invention, by this power
Biasing is defined as the first power of this terminal；The DCI format adopting during according to the scheduling corresponding PUSCH of this terminal and CCE polymerization
Degree, by searching by the PDCCH performance table that obtains of emulation and PHICH performance table, determine the PHICH of this terminal with respect to
Second power of PDCCH；Judge the quasi- orthogonal interference terminal with the presence or absence of this terminal in the set of terminal that this terminal is located, work as judgement
When result is to be, determine that the 3rd power of this terminal is performance number δ setting, wherein, δ is the value more than 0, otherwise, this terminal
The 3rd power be 0.By to the first power of this terminal, the second power and the summation of the 3rd power, determining the power of this terminal,
And by the power summation to each terminal in set of terminal, so that it is determined that the power of this set of terminal.
In addition, consistent with PDCCH property retention in order to ensure descending PHICH performance in the present invention, and then improve power
The accuracy controlling, when the power of described set of terminal is more than the maximum of the PHICH power distribution setting, by described set of terminal
Power uniform the maximum of PHICH power distribution setting and minima corresponding interval in, including：
Determine the difference of the maximum of PHICH power distribution of this setting and the power of described set of terminal；
According to the terminal quantity comprising in this difference and this set of terminal, determine the meansigma methodss of this difference；
By this meansigma methods averagely on the power of each terminal of this set of terminal, the power of this set of terminal is uniformed this
The maximum of PHICH power distribution setting and minima are corresponding interval interior.
When the power of described set of terminal is less than the minima of the PHICH power distribution setting, by the work(of described set of terminal
Rate uniforms in the maximum of PHICH power distribution and the corresponding interval of minima of this setting, including：
Determine the power of this described set of terminal and the difference of the minima of PHICH power distribution setting；
According to the terminal quantity comprising in this difference and this set of terminal, determine the meansigma methodss of this difference；
By this meansigma methods averagely on the power of each terminal of this set of terminal, the power of this set of terminal is uniformed this
The maximum of PHICH power distribution setting and minima are corresponding interval interior.
A kind of detailed process schematic diagram of PHICH Power Control that Fig. 2 provides for the present invention, this control process includes following
Several steps：
S201：Base station be directed to set of terminal in each terminal, dispatched according to PDCCH this terminal PUSCH when corresponding work(
Rate biases, and this power bias is defined as the first power of this terminal.
S202：DCI format and the CCE degree of polymerization of this terminal, and the PDCCH that emulation obtains are dispatched according to PDCCH in base station
Energy table and PHICH performance table, the second power with respect to PDCCH for the PHICH determining this terminal that tables look-up.
S203：Base station judges the quasi- orthogonal interference terminal in the set of terminal that this terminal is located with the presence or absence of this terminal, when sentencing
Determining result for when being, determining the 3rd power of this terminal is performance number δ setting, and otherwise, the 3rd power of this terminal is 0, its
In, δ is the value more than 0.
S204：First power of each terminal according to determination, the second power and the 3rd power, determine each terminal
Power, and determine the power of this set of terminal.
S205：Judge whether the power of this set of terminal is more than the maximum of the PHICH power distribution setting, work as result of determination
During for being, carrying out step S206, otherwise, carrying out step S207.
S206：Determine the difference of the maximum of PHICH power distribution of this setting and the power of described set of terminal, according to this
The terminal quantity comprising in difference and this set of terminal, determines the meansigma methodss of this difference, and this meansigma methods is averagely arrived this set of terminal
On the power of each terminal, the power of this set of terminal is uniformed maximum and the minimum of the PHICH power distribution of this setting
Value is corresponding interval interior.
S207：Judge whether the power of this set of terminal is less than the minima of the PHICH power distribution setting, work as result of determination
During for being, carrying out step S208, otherwise, not being controlled.
S208：Determine the power of this described set of terminal and the difference of the minima of PHICH power distribution setting, according to this
The terminal quantity comprising in difference and this set of terminal, determines the meansigma methodss of this difference, and this meansigma methods is averagely arrived this set of terminal
On the power of each terminal, the power of this set of terminal is uniformed maximum and the minimum of the PHICH power distribution of this setting
Value is corresponding interval interior.
Base station is according to PDCCH scheduling DCI format, the CCE degree of polymerization and the corresponding power selecting to terminal in the present invention
Biasing, in conjunction with the PDCCH performance table being obtained by emulation and PHICH performance table, and whether each terminal deposits in this set of terminal
In quasi- orthogonal interference terminal, determine the power of each terminal, and determine the power of set of terminal.Performance according to PHICH and PDCCH
Difference, the Power Control carrying out PHICH adjusts it is ensured that descending PHICH performance is consistent with PDCCH property retention, thus effectively
Avoid the unnecessary repeating transmission of terminal data, it also avoid the packet loss phenomenon of base station side uplink business data simultaneously.
In LTE FDD (Frequency Division Duplexing, the FDD) system that Fig. 3 provides for the present invention
The process schematic of PHICH Poewr control method, this control process includes following step：
S301：This terminal corresponding power bias in the PUSCH of n-4 subframe are dispatched according to PDCCH in base station, by this work(
Rate biasing is defined as the first power P of this terminalA.
S302：Base station according to dispatching the DCI format that adopts in the PUSCH of n-4 subframe of this terminal and the CCE degree of polymerization,
The difference power with respect to PDCCH for the PHICH of this terminal of determination of tabling look-up, and this difference power is defined as the second power of this terminal
PB.
By emulating PDCCH performance table and the PHICH performance table that the performance of PDCCH and PHICH obtains, due in LTE
BLock error rate (Block Error Rate, the BLER) target capabilitiess requiring PHICH in system are 0.1%, and the BLER of PDCCH
Target capabilitiess are 1%, and the reference performance therefore tabled look-up also can be set to corresponding 0.1%, the PDCCH performance table of PHICH performance table and correspond to
1%, signal power to noise power ratio when searching PDCCH in target capabilitiess 1% in PDCCH performance table, and in PHICH performance table
The middle lookup signal power to noise power ratio in target capabilitiess 0.1% for the PHICH, according to the difference of this two signal power to noise power ratios,
So that it is determined that the second power of this terminal.
S303：Base station judges the quasi- orthogonal interference terminal in set of terminal with the presence or absence of this terminal, when result of determination is to be,
Determine this terminal the 3rd power be set performance number PC=δ dB, otherwise, PC=0dB, wherein δ are the value more than 0.
S304：First power of this terminal, the second power and the 3rd power are sued for peace, determine the power P of this terminal=
PA+PB+PC.
S305：Number N according to terminal in set of terminal and the power P of each terminal0, L, PN-1, determine the power P of this set of terminal,
The power P of set of terminal and the power P of each terminal0, L, PN-1, there is following relation,
S306：Judge whether the power P of this set of terminal is more than the maximum P of the PHICH power distribution settingMAX, work as judgement
When result is to be, carries out step S307, otherwise, carry out step S308.
S307：As P ＞ PMAXWhen, the power P of adjustment set of terminal, make P=PMAX, now each terminal adjustment in set of terminal
Power P afterwardsi(i=0,1 ..., N-1 integer) is,
S308：Judge whether the power P of this set of terminal is less than minima P of the PHICH power distribution settingMIN, work as judgement
When result is to be, carries out step S309, otherwise, be not controlled.
S309：As P ＜ PMINWhen, the power P of adjustment set of terminal, make P=PMIN, now each terminal adjustment in set of terminal
Power P afterwardsi(i=0,1 ..., N-1 integer) is
Specifically, in LTE FDD system, base station provides this terminal of scheduling in n-4 subframe according to PDCCH scheduler module
PUSCH when the DCI format, the CCE degree of polymerization and the corresponding power bias P that adoptA, and gathered according to the DCI format obtaining and CCE
The right acquisition difference power P relative to PDCCH for the PHICH that tables look-upBIf, this terminal set of terminal in exist this terminal standard orthogonal
Interfered with terminal, then PC=δ dB, otherwise PC=0dB, calculates the power of this terminal：Pn=PA+PB+PC, according to each end in set of terminal
The power at end, calculates the general power of this set of terminalIf P is ＞ PMAX, then it is adjusted to P
=PMAX, in set of terminal each terminal adjustment after power Pi, it isAs
Fruit P ＜ PMIN, then it is adjusted to P=PMIN, in set of terminal each terminal adjustment after power Pi, it isWherein, the unit of power is dB.
PHICH in LTE time division duplex (Time Division Duplexing, the TDD) system that Fig. 4 provides for the present invention
Power control process schematic diagram, this control process includes following step：
S401：This terminal is dispatched in n-k according to PDCCH in base stationPHICHCorresponding power bias during the PUSCH of individual subframe, will
This power bias is defined as the first power P of this terminalA.
Wherein, kPHICHValue be determination value specified in LTE protocol.
S402：Base station is according to this terminal of scheduling in n-kPHICHThe DCI format adopting during the PUSCH of individual subframe and CCE polymerization
Degree, the difference power with respect to PDCCH for the PHICH determining this terminal that tables look-up, and this difference power is defined as the second work(of this terminal
Rate PB.
S403：Base station judges the quasi- orthogonal interference terminal in set of terminal with the presence or absence of this terminal, when result of determination is to be,
Determine this terminal the 3rd power be set performance number PC=δ dB, otherwise, PC=0dB, wherein δ are the value more than 0.
S404：First power of this terminal, the second power and the 3rd power are sued for peace, determine the power P of this terminal=
PA+PB+PC.
S405：Number N according to terminal in set of terminal and the power P of each terminal0, L, PN-1, determine the power P of this set of terminal,
The power P of set of terminal and the power P of each terminal0, L, PN-1, there is following relation,
S406：Judge whether the power P of this set of terminal is more than the maximum P of the PHICH power distribution settingMAX, work as judgement
When result is to be, carries out step S407, otherwise, carry out step S408.
S407：As P ＞ PMAXWhen, the power P of adjustment set of terminal, make P=PMAX, now each terminal adjustment in set of terminal
Power P afterwardsi(i=0,1 ..., N-1 integer) is,
S408：Judge whether the power P of this set of terminal is less than minima P of the PHICH power distribution settingMIN, work as judgement
When result is to be, carries out step S409, otherwise, be not controlled.
S409：As P ＜ PMINWhen, the power P of adjustment set of terminal, make P=PMIN, now each terminal adjustment in set of terminal
Power P afterwardsi(i=0,1 ..., N-1 integer) is
Specifically, in LTE TDD system, base station provides this terminal of scheduling in n-k according to PDCCH scheduler modulePHICHIndividual
DCI format, the CCE degree of polymerization and the corresponding power bias P adopting during the PUSCH of subframeA, and according to obtain DCI format and
The CCE degree of polymerization is tabled look-up and is obtained the difference power P relative to PDCCH for the PHICHBIf, this terminal set of terminal in exist this terminal standard
Orthogonal interference terminal, then PC=δ dB, otherwise PC=0dB, calculates the power of this terminal：Pn=PA+PB+PC, according in set of terminal each
The power of terminal, calculates the general power of this set of terminalIf P is ＞ PMAX, then it is adjusted to
P=PMAX, in set of terminal each terminal adjustment after power Pi, it is
If P is ＜ PMIN, then it is adjusted to P=PMIN, in set of terminal each terminal adjustment after power Pi, it isWherein, the unit of power is dB..
A kind of structural representation of PHICH output control device that Fig. 5 provides for the present invention, this control device includes：
Terminal power determining module 51, for for each terminal in set of terminal, carrying out PDCCH tune according to this terminal
Power bias when spending determine the first power, according to the Downlink Control Information DCI lattice when this terminal is carried out with PDCCH scheduling
Formula, the channel control element CCE degree of polymerization, the second power with respect to PDCCH for the PHICH determining this terminal that tables look-up, according to this eventually
End whether there is quasi- orthogonal interference terminal in this set of terminal, determines the 3rd power of this terminal, according to each terminal determining
The first power, the second power and the 3rd power, determine the power of each terminal；
Set of terminal power determination module 52, for the power according to each terminal in this set of terminal determining, determining should
The power of set of terminal；
Adjusting module 53, for will determine this set of terminal power, with set PHICH power distribution maximum and
Minima is compared, and the power of described set of terminal is uniformed maximum and the minimum of the PHICH power distribution of this setting
Value is corresponding interval interior.
Described terminal power determining module 51, specifically for according to the Physical Uplink Shared Channel PUSCH dispatching this terminal
When corresponding power bias, this power bias is defined as the first power of this terminal.
Described terminal power determining module 51, specifically for according to the Physical Uplink Shared Channel PUSCH dispatching this terminal
When the DCI format of the terminal and CCE degree of polymerization, and the PDCCH performance table that obtains of emulation and PHICH performance table, determination of tabling look-up should
Second power with respect to PDCCH for the PHICH of terminal.
Described terminal power determining module 51, specifically for judging to whether there is this terminal in the set of terminal that this terminal is located
Quasi- orthogonal interference terminal；When determining the quasi- orthogonal interference terminal that there is this terminal in this set of terminal, determine the of this terminal
Three power are performance number δ setting, and wherein, δ is the value more than 0；Otherwise, the 3rd power of this terminal is 0.
Described adjusting module 53, is more than the PHICH power distribution setting specifically for the power when described set of terminal
During big value, determine the difference of the maximum of PHICH power distribution of this setting and the power of described set of terminal；According to this difference and
The terminal quantity comprising in this set of terminal, determines the meansigma methodss of this difference；This meansigma methods is averagely arrived each end of this set of terminal
On the power at end, the power of this set of terminal is uniformed the maximum of the PHICH power distribution of this setting and minima corresponds to
Interval in.
Described adjusting module 53, is less than the PHICH power distribution setting specifically for the power when described set of terminal
During little value, determine the power of this described set of terminal and the difference of the minima of PHICH power distribution setting；According to this difference and
The terminal quantity comprising in this set of terminal, determines the meansigma methodss of this difference；This meansigma methods is averagely arrived each end of this set of terminal
On the power at end, the power of this set of terminal is uniformed the maximum of the PHICH power distribution of this setting and minima corresponds to
Interval in.
The invention provides a kind of PHICH Poewr control method and device, in this control method, base station is directed to set of terminal
In each terminal, according to this terminal is carried out PDCCH scheduling when power bias determine the first power and the second power, according to
Determine the 3rd power of terminal with the presence or absence of quasi- orthogonal interference terminal；Determine the power of each terminal, and determine this set of terminal
Power；The power of described set of terminal is uniformed in maximum and the corresponding interval of minima of this PHICH power distribution.By
Situation when carrying out PDCCH scheduling according to terminal in the present invention, determines the PHICH power of each terminal in set of terminal simultaneously really
The PHICH power of this set of terminal fixed, it may therefore be assured that descending PHICH performance is consistent with PDCCH performance, such that it is able to effective
The unnecessary data re-transmitting avoiding terminal, it also avoid the packet loss phenomenon of base station side uplink business data simultaneously.
Described above illustrate and describes a preferred embodiment of the present invention, but as previously mentioned it should be understood that the present invention
Be not limited to form disclosed herein, be not to be taken as the exclusion to other embodiment, and can be used for various other combinations,
Modification and environment, and can be in invention contemplated scope described herein, by technology or the knowledge of above-mentioned teaching or association area
It is modified.And the change that those skilled in the art are carried out and change without departing from the spirit and scope of the present invention, then all should be at this
In the protection domain of bright claims.
Claims (12)
1. a kind of physical mixing retransmission indicating chanel PHICH Poewr control method is it is characterised in that methods described includes：
Base station be directed to set of terminal in each terminal, according to this terminal is carried out physical downlink control channel PDCCH scheduling when
Power bias determine the first power, according to the Downlink Control Information DCI format when this terminal is carried out with PDCCH scheduling, channel
The control element CCE degree of polymerization, the second power with respect to PDCCH for the PHICH determining this terminal that tables look-up, according to this terminal at this eventually
Whether there is quasi- orthogonal interference terminal in the group of end, determine the 3rd power of this terminal；
First power of each terminal according to determination, the second power and the 3rd power, determine the power of each terminal, and really
The power of this set of terminal fixed；
It is compared, the power of this set of terminal determining by institute with the maximum of the PHICH power distribution setting and minima
The power stating set of terminal uniforms in the maximum of PHICH power distribution and the corresponding interval of minima of this setting.
2. the method for claim 1 is it is characterised in that described basis carries out power during PDCCH scheduling to this terminal
Biasing determines that the first power includes：
Base station according to dispatch this terminal Physical Uplink Shared Channel PUSCH when corresponding power bias, will be true for this power bias
It is set to the first power of this terminal.
3. the method for claim 1 is it is characterised in that the described PHICH determining this terminal that tables look-up is with respect to PDCCH's
Second power, including：
According to dispatch this terminal Physical Uplink Shared Channel PUSCH when DCI format and the CCE degree of polymerization, and emulation obtain
PDCCH performance table and PHICH performance table, the second power with respect to PDCCH for the PHICH determining this terminal that tables look-up.
4. the method for claim 1 is it is characterised in that the 3rd power of described this terminal of determination includes：
Judge the quasi- orthogonal interference terminal with the presence or absence of this terminal in the set of terminal that this terminal is located；
When determining the quasi- orthogonal interference terminal that there is this terminal in this set of terminal, determine that the 3rd power of this terminal is set
Performance number δ, wherein, δ is the value more than 0；
Otherwise, the 3rd power of this terminal is 0.
5. the method for claim 1 is it is characterised in that the power working as described set of terminal is more than the PHICH power setting
During the maximum of distribution, the power of described set of terminal is uniformed maximum and the minimum of the PHICH power distribution of this setting
Value is corresponding interval interior, including：
Determine the difference of the maximum of PHICH power distribution of this setting and the power of described set of terminal；
According to the terminal quantity comprising in this difference and this set of terminal, determine the meansigma methodss of this difference；
By this meansigma methods averagely on the power of each terminal of this set of terminal, the power of this set of terminal is uniformed this setting
The maximum of PHICH power distribution and minima corresponding interval in.
6. the method for claim 1 is it is characterised in that the power working as described set of terminal is less than the PHICH power setting
During the minima of distribution, the power of described set of terminal is uniformed maximum and the minimum of the PHICH power distribution of this setting
Value is corresponding interval interior, including：
Determine the power of this described set of terminal and the difference of the minima of PHICH power distribution setting；
According to the terminal quantity comprising in this difference and this set of terminal, determine the meansigma methodss of this difference；
By this meansigma methods averagely on the power of each terminal of this set of terminal, the power of this set of terminal is uniformed this setting
The maximum of PHICH power distribution and minima corresponding interval in.
7. a kind of physical mixing retransmission indicating chanel PHICH output control device is it is characterised in that described device includes：
Terminal power determining module, for for each terminal in set of terminal, according to carrying out to this terminal during PDCCH scheduling
Power bias determine the first power, according to the Downlink Control Information DCI format when this terminal is carried out with PDCCH scheduling, channel
The control element CCE degree of polymerization, the second power with respect to PDCCH for the PHICH determining this terminal that tables look-up, according to this terminal at this eventually
Whether there is quasi- orthogonal interference terminal in the group of end, determine the 3rd power of this terminal, according to the first work(of each terminal determining
Rate, the second power and the 3rd power, determine the power of each terminal；
Set of terminal power determination module, for the power according to each terminal in this set of terminal determining, determines this set of terminal
Power；
Adjusting module, the power of this set of terminal for determining, maximum and the minima with the PHICH power distribution setting
It is compared, the power of described set of terminal is uniformed maximum and the corresponding interval of minima of this PHICH power distribution
Interior.
8. device as claimed in claim 7 is it is characterised in that described terminal power determining module, specifically for according to scheduling
Corresponding power bias during the Physical Uplink Shared Channel PUSCH of this terminal, this power bias are defined as the first of this terminal
Power.
9. device as claimed in claim 7 is it is characterised in that described terminal power determining module, specifically for according to scheduling
The DCI format of terminal and the CCE degree of polymerization during Physical Uplink Shared Channel PUSCH of this terminal, and the PDCCH performance that emulation obtains
Table and PHICH performance table, the second power with respect to PDCCH for the PHICH determining this terminal that tables look-up.
10. device as claimed in claim 7 is it is characterised in that described terminal power determining module, specifically for judging this end
With the presence or absence of the quasi- orthogonal interference terminal of this terminal in the set of terminal that end is located；When the standard that there is this terminal in this set of terminal of determination
During orthogonal interference terminal, determine that the 3rd power of this terminal is performance number δ setting, wherein, δ is the value more than 0；Otherwise, should
3rd power of terminal is 0.
11. devices as claimed in claim 7 it is characterised in that described adjusting module, specifically for when the work(of described set of terminal
When rate is more than the maximum of PHICH power distribution setting, determine the maximum of PHICH power distribution of this setting and described end
The difference of the power of end group；According to the terminal quantity comprising in this difference and this set of terminal, determine the meansigma methodss of this difference；Should
Meansigma methodss averagely, on the power of each terminal of this set of terminal, the power of this set of terminal are uniformed the PHICH of this setting
The maximum of power distribution and minima are corresponding interval interior.
12. devices as claimed in claim 7 it is characterised in that described adjusting module, specifically for when the work(of described set of terminal
When rate is less than the minima of PHICH power distribution setting, determine that the power of this described set of terminal and the PHICH power setting divide
The difference of the minima joined；According to the terminal quantity comprising in this difference and this set of terminal, determine the meansigma methodss of this difference；Should
Meansigma methodss averagely, on the power of each terminal of this set of terminal, the power of this set of terminal are uniformed the PHICH of this setting
The maximum of power distribution and minima are corresponding interval interior.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110186849.9A CN102868503B (en) | 2011-07-05 | 2011-07-05 | Power control method and device for physical hybrid repeat request indication channel (PHICH) |
| PCT/CN2011/082886 WO2012151949A1 (en) | 2011-07-05 | 2011-11-24 | Phich power control method and device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110186849.9A CN102868503B (en) | 2011-07-05 | 2011-07-05 | Power control method and device for physical hybrid repeat request indication channel (PHICH) |
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| CN102868503A CN102868503A (en) | 2013-01-09 |
| CN102868503B true CN102868503B (en) | 2017-02-08 |
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| WO (1) | WO2012151949A1 (en) |
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| CN104244387B (en) * | 2013-06-20 | 2018-11-23 | 南京中兴新软件有限责任公司 | The adjacent area WCDMA interference control method and WCDMA system |
| CN107172703B (en) * | 2017-06-05 | 2020-03-10 | 武汉虹信通信技术有限责任公司 | PDCCH power allocation overflow control method and system |
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| WO2003088519A1 (en) * | 2002-04-08 | 2003-10-23 | Huawei Technologies Co. Ltd. | Power control method for uplink control channel in soft handover in high-speed pocket access system |
| CN100583718C (en) * | 2004-06-09 | 2010-01-20 | 三星电子株式会社 | Method and apparatus for data transmission in a mobile telecommunication system |
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| US7447516B2 (en) * | 2004-06-09 | 2008-11-04 | Samsung Electronics Co., Ltd. | Method and apparatus for data transmission in a mobile telecommunication system supporting enhanced uplink service |
| CN100539459C (en) * | 2006-05-09 | 2009-09-09 | 华为技术有限公司 | Channel power control method |
| CN100496007C (en) * | 2007-03-09 | 2009-06-03 | 华为技术有限公司 | Method, base station and radio access network system for indicating channel power bias value of enhanced configuration dedicated channel HARQ |
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| WO2003088519A1 (en) * | 2002-04-08 | 2003-10-23 | Huawei Technologies Co. Ltd. | Power control method for uplink control channel in soft handover in high-speed pocket access system |
| CN100583718C (en) * | 2004-06-09 | 2010-01-20 | 三星电子株式会社 | Method and apparatus for data transmission in a mobile telecommunication system |
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| WO2012151949A1 (en) | 2012-11-15 |
| CN102868503A (en) | 2013-01-09 |
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