CN104054277B - Transmission power control method, apparatus and system - Google Patents

Transmission power control method, apparatus and system Download PDF

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Publication number
CN104054277B
CN104054277B CN201280002426.XA CN201280002426A CN104054277B CN 104054277 B CN104054277 B CN 104054277B CN 201280002426 A CN201280002426 A CN 201280002426A CN 104054277 B CN104054277 B CN 104054277B
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sir
cell
cells
difference
base station
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CN104054277A (en
Inventor
汪凡
马雪利
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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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
    • H04W52/38—TPC being performed in particular situations
    • H04W52/40—TPC being performed in particular situations during macro-diversity or soft handoff
    • 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

Abstract

The present invention provides a kind of transmission power control method, apparatus and system, and wherein transmission power control method includes the SIR of the down channel of at least two cells of detection；By the SIR of at least two cell respectively compared with desired value, generation and at least two cell corresponding at least two power control instructions respectively, the power control instruction is for indicating that base station adjusts the down transmitting power of cell；At least two power control instructions are sent respectively to the base station belonging to corresponding cell.It efficiently avoid the base station belonging to two or more cells in heterogeneous network, due to the down transmitting power of two or more cells being raised and lowered simultaneously, and the problem of causing increase to be disturbed or influenceing downlink channel transmission performance, at least two cells be ensure that in multiple stream transmission, the transmission performance with preferable down channel.

Description

Transmission power control method, apparatus and system
Technical field
The present invention relates to the communication technology, more particularly to a kind of transmission power control method, apparatus and system.
Background technology
With the development of mobile communication technology, supported in the third generation (3rd-generation, 3G) mobile communication technology Multiple stream transmission (Multi-Flow Transmission, MF-Tx), multiple stream transmission technology allow multiple cells to be set simultaneously to user Standby (User Equipment, UE) sends high-speed slender body theory (HighSpeed Packet Access, HSDPA) data, To lift the descending throughput performance of cell, and the throughput performance of the UE positioned at cell edge.
In current multiple stream transmission technology, if being communicated using two cells with UE, the two cells are descending Need to be utilized respectively respective downlink Dedicated Physical control channel (DownlinkDedicated Physical during transmission Control Channel, DL DPCCH) or f-dpch (Fraction DPCH, F-DPCH), UE is needed The uplink transmission power to be used is indicated；UE is according to the signal-to-noise ratio (Signal on descending DPCCH or F-DPCH To Interference Ratio, SIR) generation transmitting power control (Transmission Power Control, TPC) life Word is made, the TPC command word is used to indicate that the amplitude of the down transmitting power of cell is raised and lowered in base station；UE is by the TPC command Word is carried in the information that up DPCCH is sent, and is sent respectively to the two cells；The TPC received due to the two cells Command word is identical, therefore raises or reduce respective down transmitting power.
UE of the prior art, which is safeguarded, sir target value (SIR_target), and the method for UE generation TPC command words is to incite somebody to action SIR on descending DPCCH or F-DPCH is compared with the SIR_target.It is different by being formed in macro base station and micro-base station In network forming network, there is larger difference in the downlink quality of macro base station cell and the downlink quality of micro-base station cell, i.e., For same UE, SIR and the descending DPCCH of micro-base station cell on the descending DPCCH or F-DPCH of macro base station cell Or there is larger difference in the numerical value of the SIR on F-DPCH.
If in order to ensure the transmission performance of the less cell of SIR numerical value, it is necessary to by the numerical value less SIR and SIR Target is compared, and controls the less cell of SIR numerical value to raise its down transmitting power using the TPC command word of generation； And at the same time, the larger cell of SIR numerical value the receives and TPC command word will correspondingly continue to raise its descending hair Penetrate power so that the preferable cell of script downlink quality continues to increase its down transmitting power, so as to the cell to periphery Unnecessary interference is produced with UE.If in order to ensure the transmission quality of the larger cell of SIR numerical value, it is necessary to which the numerical value is larger For SIR compared with the SIR_target, it is descending that the cell that controls the SIR numerical value big using the TPC command word of generation reduces its Transmission power；And at the same time, the less cell of SIR numerical value the receives and TPC command word will correspondingly continue to reduce Its down transmitting power so that the poor cell of script downlink quality continues to reduce its down transmitting power, so as to influence The cell carries out the performance of downlink data transmission to UE.Therefore, current UE under multi-streaming transmission mode under multiple cells The method Shortcomings that row transmission power is controlled.
The content of the invention
The first aspect of the invention is to provide a kind of transmission power control method, including：Detect at least two cells The signal-to-noise ratio SIR of down channel；
By the SIR of at least two cell respectively compared with desired value, generation and described at least two small differentiations Not corresponding at least two power control instructions, the power control instruction are used for the downlink work(for indicating base station adjustment cell Rate；
At least two power control instructions are sent respectively to the base station belonging to corresponding cell.
The transmission power control method provided with reference to one side, in the first possible implementation, the mesh Scale value is sir target value SIR_Target.
It is described by described at least two in second of possible implementation with reference to the first possible implementation For the SIR of cell respectively compared with desired value, generation and at least two cell distinguish corresponding at least two power controls Instruction processed includes：
By the SIR of at least two cell respectively compared with the SIR_Target, generation and described at least two At least two power control instructions corresponding to individual cell difference.
The transmission power control method provided with reference to second aspect, in the third possible implementation, the mesh Scale value is at least two SIR_Targets corresponding with least two cells respectively.
It is described by described at least two in the 4th kind of possible implementation with reference to the third possible implementation For the SIR of cell respectively compared with desired value, generation and at least two cell distinguish corresponding at least two power controls Instruction processed includes：
By the SIR of at least two cell respectively compared with corresponding SIR_Target, generation with it is described at least At least two power control instructions corresponding to two cells difference.
With reference to one side or first to fourth kind of possible implementation, in the 5th kind of possible implementation, institute It is downlink Dedicated Physical control channel DL DPCCH or f-dpch F-DPCH to state down channel.
With reference to the 5th kind of possible implementation, in the 6th kind of possible implementation, at least two cell DL DPCCH working frequency is identical or differs；
Or the F-DPCH of at least two cell working frequency is identical or differ.
Second aspect of the present invention is to provide a kind of transmission power control method, including：
On default transfer resource, the power control instruction that user equipment is sent on the uplink channel, the work(are received Rate control instruction is that the user equipment is compared the signal-to-noise ratio SIR of the down channel of at least two cells with desired value After relatively, one at least two power control instructions corresponding with least two cell difference of generation；
According to the power control instruction, the down transmitting power of cell is adjusted.
With reference to the transmission power control method of second aspect, in the first possible implementation, the up letter Road is special physical controlling channel of upward UL DPCCH.
Third aspect of the present invention is to provide a kind of user equipment, including：
Detection unit, the SIR of the down channel for detecting at least two cells；
Processing unit, for by the SIR of at least two cell respectively compared with desired value, generation with it is described extremely At least two power control instructions corresponding to few two cells difference, the power control instruction are used to indicate that base station adjusts cell Down transmitting power；
Transmitting element, for the base being sent respectively at least two power control instructions belonging to corresponding cell Stand.
With reference to the user equipment of the 3rd aspect, in the first possible implementation, the desired value is SIR_ Target；
Correspondingly, the processing unit is additionally operable to：
By the SIR of at least two cell respectively compared with the SIR_Target, generation and described at least two At least two power control instructions corresponding to individual cell difference.
With reference to the 3rd aspect user equipment, in second of possible implementation, the desired value for respectively with At least two SIR_Target corresponding at least two cells；
Correspondingly, the processing unit is additionally operable to：
By the SIR of at least two cell respectively compared with corresponding SIR_Target, generation with it is described at least At least two power control instructions corresponding to two cells difference.
With reference to the 3rd aspect or the first to two kind of possible implementation, in the third possible implementation, The down channel of the detection unit detection is DL DPCCH or F-DPCH.
With reference to the third possible implementation, in the 4th kind of possible implementation, at least two cell DL DPCCH working frequency is identical or differs；
Or the F-DPCH of at least two cell working frequency is identical or differ.
The 4th aspect of the present invention is to provide a kind of user equipment, including：Processor, memory, bus and communication interface； The processor, the memory, the communication interface are connected by the bus and complete mutual communication；
The communication interface, for being connected with the base station communication belonging at least two cells difference；
The memory, for depositing program；
The processor, for performing described program；
Wherein, described program is used for：
Detect the signal-to-noise ratio SIR of the down channel of at least two cells；
By the SIR of at least two cell respectively compared with desired value, generation and described at least two small differentiations Not corresponding at least two power control instructions, the power control instruction are used for the downlink work(for indicating base station adjustment cell Rate；
At least two power control instructions are sent respectively to the base station belonging to corresponding cell.
The 5th aspect of the present invention is to provide a kind of base station, including：
Receiving unit, for the power control sent on the uplink channel in default transfer resource, reception user equipment System instruction, the power control instruction are the user equipment by the signal-to-noise ratio SIR of the down channel of at least two cells After compared with desired value, at least two power control instructions corresponding with least two cell difference of generation One；
Processing unit, for according to the power control instruction, adjusting the down transmitting power of cell.
The base station provided with reference to the 5th aspect, in the first possible implementation, the up channel is up Dedicated Physical Control Channel UL DPCCH.
The 6th aspect of the present invention is to provide a kind of base station, including：
Processor, memory, bus and communication interface；The processor, the memory, the communication interface pass through institute Bus is stated to connect and complete mutual communication；
The communication interface, for being communicated to connect with user equipment；
The memory, for depositing program；
The processor, for performing described program；
Wherein, described program is used for：
On default transfer resource, the power control instruction that the user equipment is sent on the uplink channel is received, institute Power control instruction is stated to enter the signal-to-noise ratio SIR of the down channel of at least two cells with desired value for the user equipment After row compares, one at least two power control instructions corresponding with least two cell difference of generation；
According to the power control instruction, the down transmitting power of cell is adjusted.
The 7th aspect of the present invention is to provide a kind of transmission power control method, including：
Detect the SIR of the down channel of two cells；
By the SIR of described two cells difference compared with default threshold value, generation power adjustment auxiliary information；
Power adjustment auxiliary information is sent to the base station belonging to described two cells difference, or is sent to described The base station belonging to a cell in two cells, for receiving the base station of the power adjustment auxiliary information, according to described The down transmitting power of power adjustment auxiliary information adjustment cell.
It is described by described in the first possible implementation with reference to the transmission power control method of the 7th aspect Compared with default threshold value, generation power adjustment auxiliary information includes the SIR of two cells difference：
By the SIR of described two cells difference compared with the threshold value；
If the absolute value of the difference is more than or equal to the absolute value of the threshold value, the power adjustment auxiliary is generated Information.
With reference to the transmission power control method of the 7th aspect, in second of possible implementation, the detection two The SIR of the down channel of individual cell includes：
Periodically detect the SIR of the down channel of described two cells；
Correspondingly, the difference of the SIR by described two cells compared with default threshold value, adjust by generation power Whole auxiliary information includes：
By the SIR of described two cells difference compared with the threshold value；
If the absolute value of assembly average of the difference in predetermined time period, more than or equal to the threshold value Absolute value, then generate the power adjustment auxiliary information.
With reference to the 7th aspect or the first to two kind of possible implementation, in the third possible implementation, institute State in power adjustment auxiliary information and carry the difference or the threshold value, to indicate the base station belonging to the larger cells of SIR The down transmitting power of cell, or the base belonging to the instruction less cells of SIR are reduced according to the difference or the threshold value The down transmitting power stood according to the difference or threshold value rise cell.
With reference to the 7th aspect or the first to two kind of possible implementation, in the 4th kind of possible implementation, institute It is DL DPCCH or F-DPCH to state down channel.
With reference to the 4th kind of possible implementation of the 7th aspect, in the 5th kind of possible implementation, described two The DL DPCCH of individual cell working frequency is identical or differs；
Or the F-DPCH of described two cells working frequency is identical or differ.
The 8th aspect of the present invention is to provide a kind of transmission power control method, including：
The power adjustment auxiliary information that user equipment is sent on the uplink channel is received, the power adjustment auxiliary information is The user equipment by the signal-to-noise ratio SIR of the down channel of two cells difference compared with default threshold value it Generated afterwards；
Auxiliary information is adjusted according to the power, the down transmitting power of cell is adjusted.
The transmission power control method provided with reference to the 8th aspect, in the first possible implementation, the work( The difference or the threshold value are carried in rate adjustment auxiliary information；
Correspondingly, it is described that auxiliary information is adjusted according to the power, the down transmitting power of cell is adjusted including：
According to the difference OR gate limit value, the down transmitting power of cell is reduced；
Or according to the difference OR gate limit value, raise the down transmitting power of cell.
With reference to the 8th aspect or the first possible implementation, in second of possible implementation, it is described on Row channel is special physical controlling channel of upward UL DPCCH.
The 9th aspect of the present invention is to provide a kind of user equipment, including：
Detection unit, the SIR of the down channel for detecting two cells；
Processing unit, for compared with default threshold value, the SIR of described two cells difference to be generated into power Adjust auxiliary information；
Transmitting element, for power adjustment auxiliary information to be sent into the affiliated base station of described two cells difference, Or the base station belonging to a cell in described two cells is sent to, for receiving the power adjustment auxiliary information Base station, the down transmitting power of auxiliary information adjustment cell is adjusted according to the power.
The user equipment provided with reference to the 9th aspect, in the first possible implementation, the processing unit is also For：
By the SIR of described two cells difference compared with the threshold value；
When the absolute value of the difference is more than or equal to the absolute value of the threshold value, the power adjustment auxiliary is generated Information.
The user equipment provided with reference to the 9th aspect, in second of possible implementation, the detection unit is also For periodically detecting the SIR of the down channel of described two cells；
Correspondingly, the processing unit is additionally operable to：
By the SIR of described two cells difference compared with the threshold value；
In the absolute value of assembly average of the difference in predetermined time period, more than or equal to the threshold value During absolute value, the power adjustment auxiliary information is generated.
With reference to the 9th aspect or the first to two kind of possible implementation, in the third possible implementation, The difference or the threshold value are carried in the power adjustment auxiliary information of the processing unit generation, to indicate SIR Base station belonging to larger cell reduces the down transmitting power of cell, or instruction according to the difference or the threshold value Base station belonging to the less cells of SIR raises the down transmitting power of cell according to the difference or the threshold value.
With reference to the 9th aspect or the first to two kind of possible implementation, in the 4th kind of possible implementation, The down channel of the detection unit detection is DL DPCCH or F-DPCH.
With reference to the 4th kind of possible implementation, in the 5th kind of possible implementation, the DL of described two cells DPCCH working frequency is identical or differs；
Or the F-DPCH of described two cells working frequency is identical or differ.
The tenth aspect of the present invention is to provide a kind of user equipment, including：Processor, memory, bus and communication interface； The processor, the memory, the communication interface are connected by the bus and complete mutual communication；
The communication interface, for being connected with the base station communication belonging to two cells difference；
The memory, for depositing program；
The processor, for performing described program；
Wherein, described program is used for：
Detect the SIR of the down channel of two cells；
By the SIR of described two cells difference compared with default threshold value, generation power adjustment auxiliary information；
Power adjustment auxiliary information is sent to the base station belonging to described two cells difference, or is sent to described The base station belonging to a cell in two cells, for receiving the base station of the power adjustment auxiliary information, according to described The down transmitting power of power adjustment auxiliary information adjustment cell.
Tenth one side of the invention is to provide a kind of base station, including：
Receiving unit, auxiliary information, the power are adjusted for receiving the power that user equipment is sent on the uplink channel It is the user equipment by the signal-to-noise ratio SIR of the down channel of two cells difference and default door to adjust auxiliary information What limit value was generated after being compared；
Processing unit, for adjusting auxiliary information according to the power, the down transmitting power of cell is adjusted.
With reference to the tenth base station provided on one side, in the first possible implementation, the receiving unit receives To the power adjustment auxiliary information in carry the difference or the threshold value；
Correspondingly, the processing unit is additionally operable to：
According to the difference OR gate limit value, the down transmitting power of cell is reduced；
Or according to the difference OR gate limit value, raise the down transmitting power of cell.
It is described in second of possible implementation with reference to the tenth one side or the first possible implementation Up channel is special physical controlling channel of upward UL DPCCH.
The 12nd aspect of the present invention, which is to provide a kind of base station, to be included：
Processor, memory, bus and communication interface；The processor, the memory, the communication interface pass through institute Bus is stated to connect and complete mutual communication；
The communication interface, for being communicated to connect with user equipment；
The memory, for depositing program；
The processor, for performing described program；
Wherein, described program is used for：
Receive the power adjustment auxiliary information that the user equipment is sent on the uplink channel, the power adjustment auxiliary letter Cease and compared the signal-to-noise ratio SIR of the down channel of two cells difference with default threshold value for the user equipment Generated after relatively；
Auxiliary information is adjusted according to the power, the down transmitting power of cell is adjusted.
The 13rd aspect of the present invention is to provide a kind of communication system, including the 5th belonging at least two cells difference The base station that aspect or the 6th aspect provide, and the user equipment that above-mentioned 3rd aspect or the 4th aspect provide, it is described User equipment and at least two cell are communicated to connect between affiliated base station respectively.
The 14th aspect of the present invention is to provide a kind of communication system, including the 11st side belonging to two cells difference The base station that face or the 12nd aspect provide, and the user equipment that above-mentioned 9th aspect or the tenth aspect provide, the use Family equipment and described two cells are communicated to connect between affiliated base station respectively.
Transmission power control method provided in an embodiment of the present invention, apparatus and system, by supporting multiple stream transmission technology Communication system in, by UE detect at least two cells down going channel SIR, and by the SIR of at least two cells respectively with Desired value is compared, and generates at least two power control instructions, for being adjusted to the down transmitting power of respective cell, Due to no longer sending same power control instruction at least two cells, but corresponding power control is sent to each cell respectively System instruction, to indicate respectively that the base station belonging to each cell is adjusted to the down transmitting power of cell, efficiently avoid The base station belonging to two or more cells in heterogeneous network, due to the descending of two or more cells is raised and lowered simultaneously Transmission power, and cause to increase the problem of disturbing or influenceing downlink channel transmission performance, it ensure that at least two cells more During streaming, there is the transmission performance of preferable down channel.
Transmission power control method provided in an embodiment of the present invention, apparatus and system, by supporting multiple stream transmission technology Communication system in, the SIR of the down going channel of two cells is detected by UE, and by the absolute value of the SIR of two cells difference Compared with the absolute value of threshold value, generation power adjustment auxiliary information, for entering to the down transmitting power of respective cell Row adjustment, due to no longer sending same power control instruction to two cells, but only to the base belonging to one of cell Transmit power of standing adjusts auxiliary information, for being adjusted to the down transmitting power of the cell, efficiently avoid in isomery The base station belonging to two cells in network, due to the down transmitting power of two cells is raised and lowered simultaneously, and cause The problem of increase interference or influence downlink channel transmission performance, two cells are ensure that in multiple stream transmission, have preferable The transmission performance of down channel.
Brief description of the drawings
Fig. 1 a are the flow chart of transmission power control method provided in an embodiment of the present invention；
Fig. 1 b are the flow chart of another transmission power control method provided in an embodiment of the present invention；
Fig. 2 a are the flow chart of another transmission power control method provided in an embodiment of the present invention；
Fig. 2 b are the flow chart of another transmission power control method provided in an embodiment of the present invention；
Fig. 3 a are the structural representation of user equipment provided in an embodiment of the present invention；
Fig. 3 b are the structural representation of another user equipment provided in an embodiment of the present invention；
Fig. 4 a are the structural representation of another user equipment provided in an embodiment of the present invention；
Fig. 4 b are the structural representation of another user equipment provided in an embodiment of the present invention；
Fig. 5 a are the structural representation of base station provided in an embodiment of the present invention；
Fig. 5 b are the structural representation of another base station provided in an embodiment of the present invention；
Fig. 6 a are the structural representation of another base station provided in an embodiment of the present invention；
Fig. 6 b are the structural representation of another base station provided in an embodiment of the present invention；
Fig. 7 a are the structural representation of communication system provided in an embodiment of the present invention；
Fig. 7 b are the structural representation of another communication system provided in an embodiment of the present invention.
Embodiment
Various embodiments of the present invention with third generation partner program (3rd Generation PartnershipProject, The R11 of WCDMA (Wide-band Code Division Multiple Access, WCDMA) system in 3GPP) (Release11) exemplified by version, specific embodiment is illustrated, but the communication system that can apply to and not only limited In this, can be applied in the communication system that other support multiple stream transmission technology.
In R11, high-speed packet access (High Speed Packet Access, HSPA) technical support multiple stream transmission, UE can receive high speed descending sharing channel (the High Speed Downlink from multiple cells in cell edge Shared Channel, HS-DSCH) data,
In the communication system using multiple stream transmission technology, UE can receive the base station hair belonging to two or more cells The downlink data sent.When communication system is the heterogeneous network being made up of macro base station and micro-base station, the downlink matter of macro base station Larger difference be present with the downlink quality of micro-base station in amount, used by both down transmitting powers numerically there is Larger difference.
Transmission power control method, user equipment and communication system described in various embodiments of the present invention, in heterogeneous network Application scenarios under, can realize and the down transmitting power of macro base station and micro-base station is controlled respectively.
In the homogeneous network being all made up of macro base station, or in the homogeneous network being all made up of micro-base station, equally may be used So that using the method described in various embodiments of the present invention, two or more base stations are carried out with the control of down transmitting power respectively.
Fig. 1 a are the flow chart of transmission power control method provided in an embodiment of the present invention, as shown in Figure 1a, this method bag Include：
101st, the SIR of the down channel of at least two cells is detected.
Specifically, in the communication network for supporting multiple stream transmission technology, UE is located at the alternate covering of two or more cells Region, the downlink data that the base station belonging to two or more cells is sent can be received.Two or more cells can wrap Include the cell of macro base station and the cell of micro-base station, can also be the cell of macro base station or be micro-base station cell.
Also, at least two cell can be operated on identical carrier frequency, can also be operated on the carrier frequency differed. For example, with frequency double small area (Single-Frequency Dual-Cell, SF-DC) or double frequency double small area (Dual- Frequency Dual-Cell, DF-DC).
UE receive two or more cells respectively belonging to base station using respective down channel send to descending During data, the SIR of the down channel of two or more cells is detected respectively.The SIR of UE detection cell downlink channels method Can use with similar implementation in the prior art, this is repeated no more.
102nd, by the SIR of at least two cell respectively compared with desired value, generation and described at least two small At least two power control instructions corresponding to area's difference.Wherein, the power control instruction is used to indicate base station adjustment cell Down transmitting power.
Specifically, safeguarding one or more desired values in UE, correspondingly, UE is in the case where detecting two or more cells After the SIR of row channel, by two or more SIR respectively compared with one or more desired values.
One or more desired values can be one or more sir target values (SIR_Target).
If desired value is a SIR_Target, UE, respectively will be each after the SIR of at least two cells is received SIR generates a corresponding power control instruction to each cell respectively compared with the SIR_Target.
If desired value is multiple SIR_Target, each SIR_Target is corresponding with multiple cells respectively, then UE is connecing After the SIR for receiving at least two cells, respectively by the SIR of each cell compared with SIR_Target corresponding to each cell, Respectively a corresponding power control instruction is generated to each cell.
103rd, at least two power control instructions are sent respectively to the base station belonging to corresponding cell.
Specifically, UE is after a power control instruction is generated respectively to each cell respectively, by power control instruction Base station corresponding to being sent respectively to belonging to cell.
So that the base station of power control instruction is received, according to the instruction of the power control instruction, correspondingly by the power The down transmitting power of indicated cell is adjusted in control instruction.
In the case of the desired value set in UE is one or more SIR_Target, concrete implementation mode is as follows.
In the first implementation, the desired value can be a SIR_Target.
Correspondingly, step 102 can also be to enter the SIR of at least two cell with the SIR_Target respectively Row compares, and obtains at least two TPC commands word corresponding with least two cell difference respectively；According to described at least two TPC command word, generation at least two power control instructions corresponding with least two cell difference.
Specifically, a SIR_Target can be safeguarded in UE.When UE is operated under multi-streaming transmission mode, if receiving The downlink data that two or more cells are sent, then detect the SIR of the down channel of each cell, and each SIR is distinguished respectively Compared with the SIR_Target.
UE according to by the SIR of each cell results compared with SIR_Target respectively, obtain respectively with each cell pair The TPC command word answered, and then power control instruction corresponding with each cell is generated according to each TPC command word respectively.
UE will distinguish corresponding power control instruction with each cell, be sent respectively to base station corresponding to each cell.Correspondingly, The base station of power control instruction is received, according to the instruction in the power control instruction, to the downlink work(of corresponding cell Rate is adjusted.
By such processing mode, at least two cells of multiple stream transmission are carried out to UE no longer to be needed to raise simultaneously each Down transmitting power, or reduce respective down transmitting power simultaneously, but refer to according to the Power Control being respectively received TPC command word in order, independently raises or reduces respective down transmitting power.
In second of implementation, the desired value can at least two SIR_s corresponding with least two cells respectively Target。
Correspondingly, step 102 can also be, by the SIR of at least two cell respectively with corresponding SIR_Target It is compared, obtains at least two TPC commands word corresponding with least two cell difference respectively；According to described at least two Individual TPC command word, generation at least two power control instructions corresponding with least two cell difference.
Specifically, can safeguard two or more SIR_Target in UE, two or more SIR_Target can phase Together, can also differ.When UE is operated under multi-streaming transmission mode, if receiving the lower line number that two or more cells are sent According to then correspondingly safeguarding a corresponding SIR_Target, the side that UE is safeguarded to each SIR_Target respectively for each cell Method is identical.The method that specific UE is safeguarded to each SIR_Target, it can use and safeguard list with UE in the prior art Implementation similar individual SIR_Target, this is repeated no more.
When UE receives the downlink data that the base station belonging to two or more cells difference is sent, each cell is detected respectively Down channel SIR, and respectively by the SIR of each cell compared with SIR_Target corresponding to the cell, obtain ratio Compared with result, and the TPC command word according to corresponding to generating result of the comparison.
UE correspondingly generates power control instruction, and each power control instruction is sent respectively according to each TPC command word To corresponding base station.That is, UE will generate two or more TPC command words, and correspondingly generate two or more pieces power Control instruction, and then this two or more pieces power control instruction is sent respectively to corresponding base station respectively.Correspondingly, receive The base station of power control instruction, according to the instruction in the power control instruction, the down transmitting power of corresponding cell is carried out Adjustment.
By such processing mode, at least two cells of multiple stream transmission are carried out to UE no longer to be needed to raise simultaneously each Down transmitting power, or reduce respective down transmitting power simultaneously, but refer to according to the Power Control being respectively received TPC command word in order, independently raises or reduces respective down transmitting power.
In above two implementation, described down channel can be DL DPCCH or F-DPCH.UE passes through up DPCCH is to base-station transmitting-power control instruction.
When the down channel is DL DPCCH, the DL DPCCH of at least two cell working frequency can phase Together, can also differ.
When the down channel is F-DPCH, the F-DPCH of at least two cell working frequency can with identical, It can also differ.
Transmission power control method provided in an embodiment of the present invention, by supporting the communication system of multiple stream transmission technology In, the SIR of the down going channel of at least two cells is detected by UE, and the SIR of at least two cells is carried out with desired value respectively Compare, generate at least two power control instructions, for being adjusted to the down transmitting power of respective cell, due to no longer to At least two cells send same power control instruction, but send corresponding power control instruction to each cell respectively, with Indicate respectively that the base station belonging to each cell is adjusted to the down transmitting power of cell, efficiently avoid in heterogeneous network Two or more cells belonging to base station, due to the down transmitting powers of two or more cells being raised and lowered simultaneously, And the problem of causing increase to be disturbed or influenceing downlink channel transmission performance, at least two cells are ensure that in multiple stream transmission, Transmission performance with preferable down channel.
Fig. 1 b are the flow chart of another transmission power control method provided in an embodiment of the present invention, as shown in Figure 1 b, the party Method includes：
111st, on default transfer resource, the power control instruction that user equipment is sent on the uplink channel is received.Its In, the power control instruction is the user equipment by the signal-to-noise ratio SIR and mesh of the down channel of at least two cells After scale value is compared, one at least two power control instructions corresponding with least two cell difference of generation Bar.
Specifically, the base station belonging at least two cells difference to be communicated with user equipment, in default transmission money The power control instruction that user equipment is sent is received on source.Due to UE at least two cell send respectively corresponding to power control System instruction, therefore affiliated base station needs to be received on default transfer resource at least two cell respectively.Transmission money Source can be the forms such as time resource, frequency resource or code resource.
In advance to the base station belonging to which cell on which transfer resource in the communication protocol of user equipment and base station Receiving power control instruction is configured, and correspondingly, user equipment utilizes the transfer resource arranged in the communication protocol to correspondingly Cell belonging to base-station transmitting-power control instruction.
112nd, according to the power control instruction, the down transmitting power of cell is adjusted.
Further, the up channel is special physical controlling channel of upward (Uplink DedicatedPhysical Control Channel, UL DPCCH).
Specifically, may refer to the implementation described in step 101-103, this is repeated no more.
Fig. 2 a are the flow chart of another transmission power control method provided in an embodiment of the present invention, as shown in Figure 2 a, the party Method includes：
201st, the SIR of the down channel of two cells is detected.
Specifically, in the communication network for supporting multiple stream transmission technology, UE is located at the alternate covering of two or more cells Region, the downlink data that the base station belonging to two or more cells is sent can be received.Two or more cells can wrap Include the cell of macro base station and the cell of micro-base station, can also be the cell of macro base station or be micro-base station cell.
Also, at least two cell can be operated on identical carrier frequency, can also be operated on the carrier frequency differed. For example, with frequency double small area (Single-Frequency Dual-Cell, SF-DC) or double frequency double small area (Dual- Frequency Dual-Cell, DF-DC).
UE receive two or more cells respectively belonging to base station using respective down channel send to descending During data, the SIR of the down channel of two or more cells is detected respectively.The SIR of UE detection cell downlink channels method Can use with similar implementation in the prior art, this is repeated no more.
202nd, by the SIR of described two cells difference compared with default threshold value, generation power adjustment auxiliary Information.
Specifically, being previously provided with a threshold value in UE, correspondingly, UE is in the case where detecting two or more cells After the SIR of row channel, by two or more SIR respectively compared with the threshold value.
UE comes from the downlink data of two cells receiving, and detects the SIR of the down channel of two cells Afterwards, the difference of two SIR is calculated.The difference compared with the threshold value, is obtained power adjustment auxiliary information by UE.
Wherein, power adjustment auxiliary information can be result of the comparison.Result of the comparison is sent to this two small by UE Base station belonging to area's difference, according to the comparative result received, to judge whether it needs the downlink to cell by base station Power is adjusted.
Power adjustment auxiliary information can also be the amplitude of adjustment.UE voluntarily according to result of the comparison, judges to need The amplitude that base station is adjusted to the down transmitting power of cell, and the amplitude of adjustment is sent to the base for needing to be adjusted Stand.To cause amplitude of the base station according to the adjustment received, the down transmitting power of respective cell is adjusted.
203rd, power adjustment auxiliary information is sent to the base station belonging to described two cells difference, or be sent to The base station belonging to a cell in described two cells.
It is for the base station for receiving the power adjustment auxiliary information to perform step 203, is adjusted according to the power Auxiliary information adjusts the down transmitting power of cell.
Specifically, UE, after generation power adjustment auxiliary information, by power adjustment auxiliary information, to be sent to SIR larger Base station belonging to cell, or the base station belonging to the less cells of SIR.
So as to receive the base station of power adjustment auxiliary information, adjust the instruction in auxiliary information according to power, correspondingly The down transmitting power of cell is adjusted.
Further, step 202 can also be to be compared the SIR of described two cells difference and the threshold value Compared with；If the absolute value of the difference is more than or equal to the absolute value of the threshold value, the power adjustment auxiliary information is generated.
Specifically, UE by SIR difference compared with threshold value when, can using SIR difference absolute value and door The absolute value of limit value is compared.
If the absolute value of difference is more than or equal to the absolute value of threshold value, illustrate the biography of the down channel of two cells Larger difference be present, it is necessary to be adjusted to the down transmitting power of one of cell in transmission quality；If the absolute value of difference Less than the absolute value of threshold value, then the difference between the transmission quality of the down channel of two cells of explanation is smaller, wouldn't need The down transmitting power of the two cells is adjusted.
When the absolute value of difference is more than or equal to the absolute value of threshold value, the power adjustment auxiliary information, institute are generated The difference can be carried by stating in power adjustment auxiliary information, to indicate belonging to SIR is larger in described two base stations cell Base station reduce the down transmitting power of cell, or the base station liter in the described two base stations of instruction belonging to the less cells of SIR The down transmitting power of high cell.
A kind of preferable implementation is, UE by power adjustment auxiliary information be sent to the numerical value of SIR in two cells compared with Base station belonging to big cell, so that the base station reduces its down transmitting power according to the power control instruction.
Whether UE can carry the difference OR gate limit value in power adjusts auxiliary information, specifically to the downlink of cell Power is adjusted, and the amplitude of adjustment, can be determined by UE or by receiving power adjustment auxiliary information Base station determines.
Determine that power adjusts the mode of amplitude according to by UE, then UE can adjust auxiliary letter in the power that be sent to base station In breath, using the difference calculated or the threshold value as the amplitude for needing base station that its down transmitting power is raised and lowered.When this When power adjustment auxiliary information is destined to the base station belonging to the SIR larger cell of numerical value, the base station is indicated in the instruction Reduce the amplitude of down transmitting power corresponding to the difference OR gate limit value；When the power control instruction is destined to SIR numerical value During base station belonging to less cell, indicate that the base station raises downlink work(corresponding to the difference OR gate limit value in the instruction The amplitude of rate.
Determine that power adjusts the mode of amplitude according to by base station, then base station is receiving power adjustment auxiliary information Afterwards, judge whether it needs to be adjusted down transmitting power according to the wherein entrained difference OR gate limit value.Specifically Implementation can be to set certain strategy and threshold value in a base station in advance, for base station receive the power adjustment it is auxiliary During supplementary information, it can judge whether need the down transmitting power progress to cell according to the difference OR gate limit value wherein carried Adjustment.
Further, step 201 can also be periodically to detect the SIR of the down channel of described two cells；
Correspondingly, the step 202 can also be to carry out the SIR of described two cells difference and the threshold value Compare；It is exhausted more than or equal to the threshold value when the absolute value of assembly average of the difference in predetermined time period During to value, the power adjustment auxiliary information is generated.
Specifically, UE when by the SIR calculated difference compared with threshold value, can not only utilize single calculation The difference gone out, the assembly average of the SIR differences in a period of time can also be utilized.
UE is arranged to periodically detect to the SIR of the down channel of two cells in advance, and sets one to be used for accordingly Count the time span calculated.
UE carries out statistical average calculating to the one or more differences calculated in the time span, obtains the time span Interior assembly average, and the absolute value of the assembly average and threshold value are compared.If the assembly average is absolute Value is more than or equal to the threshold value, then correspondingly generates the power adjustment auxiliary information in the various embodiments described above.If the statistics is put down The absolute value of average is less than the threshold value, then need not generate the power adjustment auxiliary information in the various embodiments described above.
In above-mentioned implementation, described down channel can be DL DPCCH or F-DPCH.UE passes through up DPCCH To base-station transmitting-power control instruction.
When the down channel is DL DPCCH, the DL DPCCH of at least two cell working frequency can phase Together, can also differ.
When the down channel is F-DPCH, the F-DPCH of at least two cell working frequency can with identical, It can also differ.
Transmission power control method provided in an embodiment of the present invention, by supporting the communication system of multiple stream transmission technology In, detect the SIR of the down going channel of two cells by UE, and by the absolute value of the SIR of two cells difference and threshold value Absolute value is compared, generation power adjustment auxiliary information, for being adjusted to the down transmitting power of respective cell, due to Same power control instruction no longer is sent to two cells, but only the base-station transmitting-power belonging to one of cell is adjusted Whole auxiliary information, for being adjusted to the down transmitting power of the cell, it efficiently avoid two in heterogeneous network Base station belonging to cell, due to simultaneously the down transmitting power of two cells is raised and lowered, and cause increase disturb or The problem of influenceing downlink channel transmission performance, two cells are ensure that in multiple stream transmission, the biography with preferable down channel Defeated performance.
Fig. 2 b are the flow chart of another transmission power control method provided in an embodiment of the present invention, as shown in Figure 2 b, the party Method includes：
211st, the power adjustment auxiliary information that user equipment is sent on the uplink channel is received.Wherein, the power adjustment Auxiliary information is the user equipment by the signal-to-noise ratio SIR of the down channel of two cells difference and default threshold value Generated after being compared.
212nd, auxiliary information is adjusted according to the power, the down transmitting power of cell is adjusted.
Further, the difference or the threshold value are carried in the power adjustment auxiliary information；
Correspondingly, step 212 can be specially：
According to the difference OR gate limit value, the down transmitting power of cell is reduced；
Or according to the difference OR gate limit value, raise the down transmitting power of cell.
Further, the up channel is special physical controlling channel of upward UL DPCCH.
Specifically, may refer to the implementation described in 201-203, this is repeated no more.
Fig. 3 a are the structural representation of user equipment provided in an embodiment of the present invention, as shown in Figure 3 a, the user equipment bag Include detection unit 11, processing unit 12 and transmitting element 13.Detection unit 11, for detecting the down channel of at least two cells SIR；
Processing unit 12, for by the SIR of at least two cell respectively compared with desired value, generation with it is described At least two power control instructions corresponding at least two cells difference, the power control instruction are used to indicate that base station adjustment is small The down transmitting power in area；
Transmitting element 13, for the base being sent respectively at least two power control instructions belonging to corresponding cell Stand.
Further, the desired value is SIR_Target；
Correspondingly, the processing unit 12 is additionally operable to：
By the SIR of at least two cell respectively compared with the SIR_Target, generation and described at least two At least two power control instructions corresponding to individual cell difference.
Further, the desired value is at least two SIR_Targets corresponding with least two cells respectively；
Correspondingly, the processing unit 12 is additionally operable to：
By the SIR of at least two cell respectively compared with corresponding SIR_Target, generation with it is described at least At least two power control instructions corresponding to two cells difference.
Further, the down channel that the detection unit 11 detects is DL DPCCH or F-DPCH.
Further, the DL DPCCH of at least two cell working frequency is identical or differs；It is or described The F-DPCH of at least two cells working frequency is identical or differs.
Fig. 3 b are the structural representation of another user equipment provided in an embodiment of the present invention, and as shown in Figure 3 b, the user sets It is standby to include processor 21, memory 22, bus 23 and communication interface 24.
The processor 21, the memory 22, the communication interface 24 are connected by the bus 23 and completed mutually Between communication；The communication interface 24, for being connected with the base station communication belonging at least two cells difference.
Processor 21 may be monokaryon or multinuclear CPU (Central Processing Unit, CPU), or Person is specific integrated circuit (Application Specific Integrated Circuit, ASIC), or to be configured to Implement one or more integrated circuits of the embodiment of the present invention.
Memory 22 can be high-speed RAM memory, or nonvolatile memory (non-volatile Memory), a for example, at least magnetic disk storage.
The memory 22, for depositing program 221；Specifically, program code, the journey can be included in program 221 Sequence code includes computer-managed instruction.
The processor 21, for running described program 221, to perform：
Detect the signal-to-noise ratio SIR of the down channel of at least two cells；
By the SIR of at least two cell respectively compared with desired value, generation and described at least two small differentiations Not corresponding at least two power control instructions, the power control instruction are used for the downlink work(for indicating base station adjustment cell Rate；
At least two power control instructions are sent respectively to the base station belonging to corresponding cell.
Specifically, the method that the user equipment in the embodiment of the present invention is controlled to transimission power, may refer to above-mentioned Operating procedure described in corresponding embodiment of the method, here is omitted.
User equipment provided in an embodiment of the present invention, in the communication system for supporting multiple stream transmission technology, detection at least two The SIR of the down going channel of individual cell, and by the SIR of at least two cells respectively compared with desired value, generate at least two Power control instruction, for being adjusted to the down transmitting power of respective cell, due to no longer being sent at least two cells Same power control instruction, but corresponding power control instruction is sent to each cell respectively, to indicate respectively each cell institute The base station of category is adjusted to the down transmitting power of cell, efficiently avoid two or more cells in heterogeneous network Affiliated base station, due to simultaneously the down transmitting power of two or more cells is raised and lowered, and cause increase disturb or Person influences the problem of downlink channel transmission performance, ensure that at least two cells in multiple stream transmission, has preferable descending letter The transmission performance in road.
Fig. 4 a are the structural representation of another user equipment provided in an embodiment of the present invention, and as shown in fig. 4 a, the user sets It is standby to include detection unit 31, processing unit 32 and transmitting element 33.
Detection unit 31, the SIR of the down channel for detecting two cells；
Processing unit 32, for compared with default threshold value, the SIR of described two cells difference to be generated into work( Rate adjusts auxiliary information；
Transmitting element 33, for the base being sent to power adjustment auxiliary information belonging to described two cells difference Stand, or the base station belonging to be sent in described two cells a cell, for receiving the power adjustment auxiliary letter The base station of breath, the down transmitting power of auxiliary information adjustment cell is adjusted according to the power.
Further the processing unit 32 is additionally operable to：
By the SIR of described two cells difference compared with the threshold value；
When the absolute value of the difference is more than or equal to the absolute value of the threshold value, the power adjustment auxiliary is generated Information.
Further, the detection unit 31 is additionally operable to, and periodically detects the down channel of described two cells SIR；
Correspondingly, the processing unit 32 is additionally operable to：
By the SIR of described two cells difference compared with the threshold value；
In the absolute value of assembly average of the difference in predetermined time period, more than or equal to the threshold value During absolute value, the power adjustment auxiliary information is generated.
Further, the difference is carried in the power adjustment auxiliary information that the processing unit 32 generates, with Indicate that the base station belonging to the larger cells of SIR reduces the down transmitting power of cell, or belonging to the instruction less cells of SIR Base station raises the down transmitting power of cell.
Further, the down channel that the detection unit 31 detects is DL DPCCH or F-DPCH.
Further, the DL DPCCH of described two cells working frequency is identical or differs；It is or described two The F-DPCH of cell working frequency is identical or differs.
Fig. 4 b are the structural representation of another user equipment provided in an embodiment of the present invention, and as shown in Figure 4 b, the user sets It is standby to include processor 41, memory 42, bus 43 and communication interface 44.
The processor 41, the memory 42, the communication interface 44 are connected by the bus 43 and completed mutually Between communication；The communication interface 44, for being connected with the base station communication belonging at least two cells difference.
Processor 41 may be monokaryon or multinuclear CPU (Central Processing Unit, CPU), or Person is specific integrated circuit (Application Specific Integrated Circuit, ASIC), or to be configured to Implement one or more integrated circuits of the embodiment of the present invention.
Memory 42 can be high-speed RAM memory, or nonvolatile memory (non-volatile Memory), a for example, at least magnetic disk storage.
The memory 42, for depositing program 421；Specifically, program code, the journey can be included in program 421 Sequence code includes computer-managed instruction.
The processor 41, for running described program 421, to perform：
Detect the SIR of the down channel of two cells；
By the SIR of described two cells difference compared with default threshold value, generation power adjustment auxiliary information；
Power adjustment auxiliary information is sent to the base station belonging to described two cells difference, or is sent to described The base station belonging to a cell in two cells, for receiving the base station of the power adjustment auxiliary information, according to described The down transmitting power of power adjustment auxiliary information adjustment cell.
Specifically, the method that the user equipment in the embodiment of the present invention is controlled to transimission power, may refer to above-mentioned Operating procedure described in corresponding embodiment of the method, here is omitted.
User equipment provided in an embodiment of the present invention, in the communication system for supporting multiple stream transmission technology, detection is two small The SIR of the down going channel in area, and by the absolute value of the SIR of two cells difference compared with the absolute value of threshold value, it is raw Success rate adjusts auxiliary information, for being adjusted to the down transmitting power of respective cell, due to no longer being sent out to two cells Same power control instruction is sent, but auxiliary information only is adjusted to the base-station transmitting-power belonging to one of cell, is used for The down transmitting power of the cell is adjusted, efficiently avoid the base station belonging to two cells in heterogeneous network, Due to the down transmitting power of two cells is raised and lowered simultaneously, and increase is caused to disturb or influence downlink channel transmission The problem of performance, two cells are ensure that in multiple stream transmission, the transmission performance with preferable down channel.
Fig. 5 a are the structural representation of base station provided in an embodiment of the present invention, and as shown in Figure 5 a, the base station includes：Receive single Member 51 and processing unit 52.
Receiving unit 51, for the power sent on the uplink channel in default transfer resource, reception user equipment Control instruction, the power control instruction are the user equipment by the signal-to-noise ratio of the down channel of at least two cells After SIR is compared with desired value, generation corresponding at least two Power Controls refer to respectively with least two cell One in order；
Processing unit 52, for according to the power control instruction, adjusting the down transmitting power of cell.
Further, the up channel is special physical controlling channel of upward UL DPCCH.
Specifically, the method that base station provided in an embodiment of the present invention is transmitted Power Control, may refer to above-mentioned correspondence Embodiment of the method described in operating procedure, this is repeated no more.
Fig. 5 b are the structural representation of another base station provided in an embodiment of the present invention, and as shown in Figure 5 b, the base station includes place Manage device 61, memory 62, bus 63 and communication interface 64.
The processor 61, the memory 62, the communication interface 64 are connected by the bus 63 and completed mutually Between communication；The communication interface 64, for being connected with the base station communication belonging at least two cells difference.
Processor 61 may be monokaryon or multinuclear CPU (Central Processing Unit, CPU), or Person is specific integrated circuit (Application Specific Integrated Circuit, ASIC), or to be configured to Implement one or more integrated circuits of the embodiment of the present invention.
Memory 62 can be high-speed RAM memory, or nonvolatile memory (non-volatile Memory), a for example, at least magnetic disk storage.
The memory 62, for depositing program 621；Specifically, program code, the journey can be included in program 621 Sequence code includes computer-managed instruction.
The processor 61, for running described program 621, to perform：
On default transfer resource, the power control instruction that the user equipment is sent on the uplink channel is received, institute Power control instruction is stated to enter the signal-to-noise ratio SIR of the down channel of at least two cells with desired value for the user equipment After row compares, one at least two power control instructions corresponding with least two cell difference of generation；
According to the power control instruction, the down transmitting power of cell is adjusted.
Specifically, the method that base station provided in an embodiment of the present invention is transmitted Power Control, may refer to above-mentioned correspondence Embodiment of the method described in operating procedure, this is repeated no more.
Fig. 6 a are the structural representation of another base station provided in an embodiment of the present invention, and as shown in Figure 6 a, the base station includes：Connect Receive unit 71, processing unit 72.
Receiving unit 71, auxiliary information, the work(are adjusted for receiving the power that user equipment is sent on the uplink channel Rate adjustment auxiliary information be the user equipment by the signal-to-noise ratio SIR of the down channel of two cells difference with it is default What threshold value was generated after being compared；
Processing unit 72, for adjusting auxiliary information according to the power, the down transmitting power of cell is adjusted.
Further, carried in the receiving unit 71 receives the power adjustment auxiliary information difference or The threshold value；
Correspondingly, the processing unit 72 is additionally operable to：
According to the difference OR gate limit value, the down transmitting power of cell is reduced；
Or according to the difference OR gate limit value, raise the down transmitting power of cell.
Further, the up channel is special physical controlling channel of upward UL DPCCH.
Specifically, the method that base station provided in an embodiment of the present invention is transmitted Power Control, may refer to above-mentioned correspondence Embodiment of the method described in operating procedure, this is repeated no more.
Fig. 6 b are the structural representation of another base station provided in an embodiment of the present invention, and as shown in Figure 6 b, the base station includes
Processor 81, memory 82, bus 83 and communication interface 84.
The processor 81, the memory 82, the communication interface 84 are connected by the bus 83 and completed mutually Between communication；The communication interface 84, for being connected with the base station communication belonging at least two cells difference.
Processor 81 may be monokaryon or multinuclear CPU (Central Processing Unit, CPU), or Person is specific integrated circuit (Application Specific Integrated Circuit, ASIC), or to be configured to Implement one or more integrated circuits of the embodiment of the present invention.
Memory 82 can be high-speed RAM memory, or nonvolatile memory (non-volatile Memory), a for example, at least magnetic disk storage.
The memory 82, for depositing program 821；Specifically, program code, the journey can be included in program 821 Sequence code includes computer-managed instruction.
The processor 81, for running described program 821, to perform：
Receive the power adjustment auxiliary information that the user equipment is sent on the uplink channel, the power adjustment auxiliary letter Cease and compared the signal-to-noise ratio SIR of the down channel of two cells difference with default threshold value for the user equipment Generated after relatively；
Auxiliary information is adjusted according to the power, the down transmitting power of cell is adjusted.
Specifically, the method that base station provided in an embodiment of the present invention is transmitted Power Control, may refer to above-mentioned correspondence Embodiment of the method described in operating procedure, this is repeated no more.
Fig. 7 a are the structural representation of communication system provided in an embodiment of the present invention, as shown in Figure 7a, the communication system bag The base station 1 belonging at least two cells difference, and user equipment 2 are included, base station 1 can be the base described in Fig. 5 a or Fig. 5 b Stand, user equipment 2 can be the user equipment described in Fig. 3 a or Fig. 3 b.
The user equipment 2 and at least two cell are communicated to connect between affiliated base station 1 respectively.
Specifically, the side that user equipment is controlled to the transimission power of base station in communication system in the embodiment of the present invention Method, the operating procedure described in above-mentioned corresponding embodiment of the method is may refer to, here is omitted.
Fig. 7 b are the structural representation of another communication system provided in an embodiment of the present invention, as shown in Figure 7b, the communication system System includes two described base stations 3 of cells difference, and user equipment 4, base station 3 can be the base station described in Fig. 6 a or Fig. 6 b, User equipment 4 can be the user equipment described in Fig. 4 a or Fig. 4 b.
The user equipment 4 and described two cells are communicated to connect between affiliated base station 3 respectively.
Specifically, the side that user equipment is controlled to the transimission power of base station in communication system in the embodiment of the present invention Method, the operating procedure described in above-mentioned corresponding embodiment of the method is may refer to, here is omitted.
One of ordinary skill in the art will appreciate that：Realizing all or part of step of above method embodiment can pass through Programmed instruction related hardware is completed, and foregoing program can be stored in a computer read/write memory medium, the program Upon execution, the step of execution includes above method embodiment；And foregoing storage medium includes：ROM, RAM, magnetic disc or light Disk etc. is various can be with the medium of store program codes.
Finally it should be noted that：Various embodiments above is merely illustrative of the technical solution of the present invention, rather than its limitations；To the greatest extent The present invention is described in detail with reference to foregoing embodiments for pipe, it will be understood by those within the art that：Its according to The technical scheme described in foregoing embodiments can so be modified, either which part or all technical characteristic are entered Row equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the present invention technology The scope of scheme.

Claims (34)

  1. A kind of 1. transmission power control method, it is characterised in that including：
    Detect the signal-to-noise ratio SIR of the down channel of at least two cells；
    By the SIR of at least two cell respectively compared with desired value, generation is right respectively with least two cell At least two power control instructions answered, the power control instruction are used for the down transmitting power for indicating base station adjustment cell；
    At least two power control instructions are sent respectively to the base station belonging to corresponding cell；
    Wherein, the desired value is sir target value SIR_Target, or the desired value is respectively with least two At least two SIR_Target corresponding to individual cell.
  2. 2. transmission power control method according to claim 1, it is characterised in that in the desired value be signal-to-noise ratio During desired value SIR_Target, the SIR by least two cell respectively compared with desired value, generation with it is described Corresponding at least two power control instructions include at least two cells respectively：
    By the SIR of at least two cell respectively compared with the SIR_Target, generation and described at least two small At least two power control instructions corresponding to area's difference.
  3. 3. transmission power control method according to claim 1, it is characterised in that the desired value for respectively with least Corresponding to two cells during at least two SIR_Target, the SIR by least two cell enters with desired value respectively Row compares, and corresponding at least two power control instructions include respectively with least two cell for generation：
    By the SIR of at least two cell respectively compared with corresponding SIR_Target, generation and described at least two At least two power control instructions corresponding to cell difference.
  4. 4. according to any described transmission power control method in claim 1-3, it is characterised in that under the down channel is Row Dedicated Physical Control Channel DL DPCCH or f-dpch F-DPCH.
  5. 5. transmission power control method according to claim 4, it is characterised in that the DL of at least two cell DPCCH working frequency is identical or differs；
    Or the F-DPCH of at least two cell working frequency is identical or differ.
  6. A kind of 6. transmission power control method, it is characterised in that including：
    On default transfer resource, the power control instruction that user equipment is sent on the uplink channel, the power control are received System instruction for the user equipment by the signal-to-noise ratio SIR of the down channel of at least two cells compared with desired value it Afterwards, one at least two power control instructions corresponding with least two cell difference of generation；
    According to the power control instruction, the down transmitting power of cell is adjusted；
    Wherein, the desired value is sir target value SIR_Target, or the desired value is respectively with least two At least two SIR_Target corresponding to individual cell.
  7. 7. transmission power control method according to claim 6, it is characterised in that the up channel is up special thing Manage control channel UL DPCCH.
  8. A kind of 8. user equipment, it is characterised in that including：
    Detection unit, the signal-to-noise ratio SIR of the down channel for detecting at least two cells；
    Processing unit, for by the SIR of at least two cell respectively compared with desired value, generation and described at least two At least two power control instructions corresponding to individual cell difference, the power control instruction are used to indicate under base station adjustment cell Row transmission power；
    Transmitting element, for the base station being sent respectively at least two power control instructions belonging to corresponding cell；
    Wherein, the desired value is sir target value SIR_Target, or the desired value is respectively with least two At least two SIR_Target corresponding to individual cell.
  9. 9. user equipment according to claim 8, it is characterised in that the desired value is sir target value SIR_ Target；
    Correspondingly, the processing unit is additionally operable to：
    By the SIR of at least two cell respectively compared with the SIR_Target, generation and described at least two small At least two power control instructions corresponding to area's difference.
  10. 10. user equipment according to claim 8, it is characterised in that the desired value for respectively with least two cells Corresponding at least two SIR_Target；
    Correspondingly, the processing unit is additionally operable to：
    By the SIR of at least two cell respectively compared with corresponding SIR_Target, generation and described at least two At least two power control instructions corresponding to cell difference.
  11. 11. according to any described user equipment in claim 8-10, it is characterised in that the detection unit detects described Down channel is downlink Dedicated Physical control channel DL DPCCH or f-dpch F-DPCH.
  12. 12. user equipment according to claim 11, it is characterised in that the DL DPCCH of at least two cell work Working frequency is identical or differs；
    Or the F-DPCH of at least two cell working frequency is identical or differ.
  13. A kind of 13. user equipment, it is characterised in that including：Processor, memory, bus and communication interface；The processor, The memory, the communication interface are connected by the bus and complete mutual communication；
    The communication interface, for being connected with the base station communication belonging at least two cells difference；
    The memory, for depositing program；
    The processor, for performing described program；
    Wherein, described program is used for：
    Detect the signal-to-noise ratio SIR of the down channel of at least two cells；
    By the SIR of at least two cell respectively compared with desired value, generation is right respectively with least two cell At least two power control instructions answered, the power control instruction are used for the down transmitting power for indicating base station adjustment cell；
    At least two power control instructions are sent respectively to the base station belonging to corresponding cell；
    Wherein, the desired value is sir target value SIR_Target, or the desired value is respectively with least two At least two SIR_Target corresponding to individual cell.
  14. A kind of 14. base station, it is characterised in that including：
    Receiving unit, for referring in default transfer resource, the Power Control that reception user equipment is sent on the uplink channel Order, the power control instruction are the user equipment by the signal-to-noise ratio SIR and mesh of the down channel of at least two cells After scale value is compared, one at least two power control instructions corresponding with least two cell difference of generation Bar；
    Processing unit, for according to the power control instruction, adjusting the down transmitting power of cell；
    Wherein, the desired value is sir target value SIR_Target, or the desired value is respectively with least two At least two SIR_Target corresponding to individual cell.
  15. 15. base station according to claim 14, it is characterised in that the up channel is special physical controlling channel of upward UL DPCCH。
  16. A kind of 16. base station, it is characterised in that including：Processor, memory, bus and communication interface；It is the processor, described Memory, the communication interface are connected by the bus and complete mutual communication；
    The communication interface, for being communicated to connect with user equipment；
    The memory, for depositing program；
    The processor, for performing described program；
    Wherein, described program is used for：
    On default transfer resource, the power control instruction that the user equipment is sent on the uplink channel, the work(are received Rate control instruction is that the user equipment is compared the signal-to-noise ratio SIR of the down channel of at least two cells with desired value After relatively, one at least two power control instructions corresponding with least two cell difference of generation；
    According to the power control instruction, the down transmitting power of cell is adjusted；
    Wherein, the desired value is sir target value SIR_Target, or the desired value is respectively with least two At least two SIR_Target corresponding to individual cell.
  17. A kind of 17. transmission power control method, it is characterised in that including：
    Detect the signal-to-noise ratio SIR of the down channel of two cells；
    By the SIR of described two cells difference compared with default threshold value, generation power adjustment auxiliary information；
    Power adjustment auxiliary information is sent to the base station belonging to described two cells difference, or is sent to described two The base station belonging to a cell in cell, for receiving the base station of the power adjustment auxiliary information, according to the power Adjust the down transmitting power of auxiliary information adjustment cell；
    Wherein, the difference or the threshold value are carried in the power adjustment auxiliary information, to indicate the larger cells of SIR Affiliated base station reduces the down transmitting power of cell according to the difference or the threshold value, or indicates that SIR is less small Base station belonging to area raises the down transmitting power of cell according to the difference or the threshold value.
  18. 18. transmission power control method according to claim 17, it is characterised in that described by described two cells Compared with default threshold value, generation power adjustment auxiliary information includes SIR difference：
    By the SIR of described two cells difference compared with the threshold value；
    If the absolute value of the difference is more than or equal to the absolute value of the threshold value, the power adjustment auxiliary letter is generated Breath.
  19. 19. transmission power control method according to claim 17, it is characterised in that two cells of the detection it is descending The SIR of channel includes：
    Periodically detect the SIR of the down channel of described two cells；
    Correspondingly, for the difference of the SIR by described two cells compared with default threshold value, generation power adjustment is auxiliary Supplementary information includes：
    By the SIR of described two cells difference compared with the threshold value；
    If the absolute value of assembly average of the difference in predetermined time period, absolute more than or equal to the threshold value Value, then generate the power adjustment auxiliary information.
  20. 20. according to any described transmission power control method in claim 17-19, it is characterised in that the down channel For downlink Dedicated Physical control channel DL DPCCH or f-dpch F-DPCH.
  21. 21. transmission power control method according to claim 20, it is characterised in that the DL DPCCH of described two cells Working frequency it is identical or differ；
    Or the F-DPCH of described two cells working frequency is identical or differ.
  22. A kind of 22. transmission power control method, it is characterised in that including：
    The power adjustment auxiliary information that user equipment is sent on the uplink channel is received, the power adjustment auxiliary information is described User equipment by the signal-to-noise ratio SIR of the down channel of two cells difference compared with default threshold value after institute Generation；
    Auxiliary information is adjusted according to the power, the down transmitting power of cell is adjusted；
    Wherein, the difference or the threshold value are carried in the power adjustment auxiliary information；
    Correspondingly, it is described that auxiliary information is adjusted according to the power, the down transmitting power of cell is adjusted including：
    According to the difference OR gate limit value, the down transmitting power of cell is reduced；
    Or according to the difference OR gate limit value, raise the down transmitting power of cell.
  23. 23. transmission power control method according to claim 22, it is characterised in that the up channel is up special Physical control channel UL DPCCH.
  24. A kind of 24. user equipment, it is characterised in that including：
    Detection unit, the signal-to-noise ratio SIR of the down channel for detecting two cells；
    Processing unit, for compared with default threshold value, generation power to adjust by the SIR of described two cells difference Auxiliary information；
    Transmitting element, for the base station being sent to power adjustment auxiliary information belonging to described two cells difference, or The base station belonging to a cell in described two cells is sent to, for receiving the base of the power adjustment auxiliary information Stand, the down transmitting power of auxiliary information adjustment cell is adjusted according to the power；
    Wherein, the difference or the threshold value are carried in the power adjustment auxiliary information of the processing unit generation, The down transmitting power of cell is reduced to indicate the base station belonging to the larger cells of SIR according to the difference or the threshold value, Or the base station belonging to the instruction less cells of SIR raises the downlink work(of cell according to the difference or the threshold value Rate.
  25. 25. user equipment according to claim 24, it is characterised in that the processing unit is additionally operable to：
    By the SIR of described two cells difference compared with the threshold value；
    When the absolute value of the difference is more than or equal to the absolute value of the threshold value, the power adjustment auxiliary letter is generated Breath.
  26. 26. user equipment according to claim 24, it is characterised in that the detection unit is additionally operable to, and is periodically examined Survey the SIR of the down channel of described two cells；
    Correspondingly, the processing unit is additionally operable to：
    By the SIR of described two cells difference compared with the threshold value；
    It is absolute more than or equal to the threshold value in the absolute value of assembly average of the difference in predetermined time period During value, the power adjustment auxiliary information is generated.
  27. 27. according to any described user equipment in claim 24-26, it is characterised in that the institute of the detection unit detection It is downlink Dedicated Physical control channel DL DPCCH or f-dpch F-DPCH to state down channel.
  28. 28. user equipment according to claim 27, it is characterised in that the DL DPCCH of described two cells work frequency Rate is identical or differs；
    Or the F-DPCH of described two cells working frequency is identical or differ.
  29. A kind of 29. user equipment, it is characterised in that including：Processor, memory, bus and communication interface；The processor, The memory, the communication interface are connected by the bus and complete mutual communication；
    The communication interface, for being connected with the base station communication belonging to two cells difference；
    The memory, for depositing program；
    The processor, for performing described program；
    Wherein, described program is used for：
    Detect the signal-to-noise ratio SIR of the down channel of two cells；
    By the SIR of described two cells difference compared with default threshold value, generation power adjustment auxiliary information；
    Power adjustment auxiliary information is sent to the base station belonging to described two cells difference, or is sent to described two The base station belonging to a cell in cell, for receiving the base station of the power adjustment auxiliary information, according to the power Adjust the down transmitting power of auxiliary information adjustment cell；
    Wherein, the difference or the threshold value are carried in the power adjustment auxiliary information, to indicate the larger cells of SIR Affiliated base station reduces the down transmitting power of cell according to the difference or the threshold value, or indicates that SIR is less small Base station belonging to area raises the down transmitting power of cell according to the difference or the threshold value.
  30. A kind of 30. base station, it is characterised in that including：
    Receiving unit, auxiliary information, the power adjustment are adjusted for receiving the power that user equipment is sent on the uplink channel Auxiliary information is the user equipment by the signal-to-noise ratio SIR of the down channel of two cells difference and default threshold value Generated after being compared；
    Processing unit, for adjusting auxiliary information according to the power, the down transmitting power of cell is adjusted；
    Wherein, the difference or the thresholding are carried in the power adjustment auxiliary information that the receiving unit receives Value；
    Correspondingly, the processing unit is additionally operable to：
    According to the difference OR gate limit value, the down transmitting power of cell is reduced；
    Or according to the difference OR gate limit value, raise the down transmitting power of cell.
  31. 31. base station according to claim 30, it is characterised in that the up channel is special physical controlling channel of upward UL DPCCH。
  32. A kind of 32. base station, it is characterised in that including：
    Processor, memory, bus and communication interface；The processor, the memory, the communication interface pass through described total Line connects and completes mutual communication；
    The communication interface, for being communicated to connect with user equipment；
    The memory, for depositing program；
    The processor, for performing described program；
    Wherein, described program is used for：
    The power adjustment auxiliary information that the user equipment is sent on the uplink channel is received, the power adjustment auxiliary information is The user equipment by the signal-to-noise ratio SIR of the down channel of two cells difference compared with default threshold value it Generated afterwards；
    Auxiliary information is adjusted according to the power, the down transmitting power of cell is adjusted；
    Wherein, the difference or the threshold value are carried in the power adjustment auxiliary information, to indicate the larger cells of SIR Affiliated base station reduces the down transmitting power of cell according to the difference or the threshold value, or indicates that SIR is less small Base station belonging to area raises the down transmitting power of cell according to the difference or the threshold value.
  33. A kind of 33. communication system, it is characterised in that including at least two cells respectively belonging to as described in claims 14 or 15 Base station or base station as claimed in claim 16, and user equipment as described in any in claim 8-12 or such as right It is required that the user equipment described in 13, the user equipment and at least two cell distinguish communication link between affiliated base station Connect.
  34. 34. a kind of communication system, it is characterised in that including the base as described in claim 30 or 31 belonging to two cells difference Stand or base station as claimed in claim 32, and user equipment as described in any in claim 24-28 or as right will Seek the user equipment described in 29, the user equipment and described two cells are communicated to connect between affiliated base station respectively.
CN201280002426.XA 2012-12-19 2012-12-19 Transmission power control method, apparatus and system Active CN104054277B (en)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101611564A (en) * 2007-02-13 2009-12-23 高通股份有限公司 Have unbalanced power control apparatus of link and method on down link and the up link
CN102026210A (en) * 2009-09-21 2011-04-20 鼎桥通信技术有限公司 Radio resource management methods for cell portion

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2390953A (en) * 2002-07-15 2004-01-21 King S College London Controlling a micro cell transmit power to maintain quality of service for nearby devices served by an overlapping macro cell
JP2005184708A (en) * 2003-12-24 2005-07-07 Nec Corp Radio communication system, radio base station, mobile station, and transmit power control method used for them
EP2088694A4 (en) * 2006-10-27 2012-07-25 Nec Corp Transmission power control method and portable terminal device
CN101488788B (en) * 2008-01-16 2013-01-16 鼎桥通信技术有限公司 Method and system for controlling downlink transmission power
US20100167777A1 (en) * 2008-12-30 2010-07-01 Airvana, Inc. Power control for reverse link
US8867420B2 (en) * 2010-03-15 2014-10-21 Qualcomm Incorporated Method and apparatus for enhancing high data rate uplink operations

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101611564A (en) * 2007-02-13 2009-12-23 高通股份有限公司 Have unbalanced power control apparatus of link and method on down link and the up link
CN102026210A (en) * 2009-09-21 2011-04-20 鼎桥通信技术有限公司 Radio resource management methods for cell portion

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