CN104105183A

CN104105183A - Downlink transmission power control method, device and system

Info

Publication number: CN104105183A
Application number: CN201310115660.XA
Authority: CN
Inventors: 焦淑蓉; 孙小钧; 花梦
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2013-04-03
Filing date: 2013-04-03
Publication date: 2014-10-15
Also published as: WO2014161418A1

Abstract

The invention provides a downlink transmission power control method, a device and a system. The downlink transmission power control method comprises: UE obtains the corresponding first signal quality according to TPC bit on a low power node downlink channel, wherein the UE is positioned in the switching area of a low power node and a high frequency node; the UE compares first signal quality with the target value of the first signal quality, and TPC1 order controlled by the first transmission power is obtained according to the comparison result; the target value of the first signal quality is obtained according to the TPC error rate of the TPC bit; and the UE sends the TPC1 order to the low power node in order to make the low power node adjust the downlink transmission power of the TPC bit. According to the embodiment of the invention, the transmission performance of the downlink channel of the low power node can be improved by comparing the first signal quality corresponding to the low power node and the first signal quality target value to receive a TPC1 order, and using the TPC1 order to correctly control the TPC bit emission power of the low power node so as to improve the transmission performance of the downlink channel of the low power node.

Description

Downlink transmission power control method, Apparatus and system

Technical field

The embodiment of the present invention relates to the communication technology, relates in particular to a kind of downlink transmission power control method, Apparatus and system.

Background technology

It is one of the decline of universal mobile telecommunications system (Universal Mobile Telecommunications System, hereinafter to be referred as UMTS) antagonism wireless channel transmission and means of raising power system capacity that power is controlled.

At heterogeneous network (Heterogeneous Network, hereinafter to be referred as Hetnet) in, subscriber equipment (User Equipment, hereinafter to be referred as UE) according to the macro base station and low power nodes (the Low Power Node that receive, hereinafter to be referred as LPN) downstream signal, obtain signal-to-jamming ratio (the Signal to interference ratio of the down channel of macro base station and LPN, hereinafter to be referred as SIR), by comparing the size of SIR and sir target value, generate through-put power and control (Transmission Power Control, hereinafter to be referred as TPC) order the transmitting power unification of macro base station and LPN is adjusted.

But in Hetnet, there is the unbalanced region of up-downgoing, when UE is in the uneven region of up-downgoing, and the soft handover area in macro base station and LPN is during near a side of macro base station, the quality of the downstream signal of the macro base station that UE receives is better than the quality of the downstream signal of LPN, the TPC order that UE generates depends primarily on the downstream signal of macro base station, cause this TPC order can not correctly control the transmitting power of LPN, thereby affect the transmission performance of LPN down channel.

Summary of the invention

The embodiment of the present invention provides a kind of downlink transmission power control method, Apparatus and system.

First aspect, a kind of downlink transmission power control method that the embodiment of the present invention provides, comprising:

User equipment (UE) is controlled TPC bit according to the through-put power on low power nodes down channel and is obtained corresponding first signal quality, and described UE is in described low power nodes and high power node soft handover area; Described UE compares described first signal quality and first signal quality target value, obtains the first through-put power control TPC1 order according to comparative result; Described first signal quality target value is to obtain according to the TPC order error rate of described TPC bit; Described UE sends to described low power nodes by described TPC1 order, adjusts the downlink transmission power of described TPC bit for described low power nodes.

In the possible implementation of the first of first aspect, described method also comprises: described UE obtains secondary signal quality, and described secondary signal quality is that described UE obtains corresponding signal quality acquisition according to the pilot bits on described low power nodes and described high power node down channel; Described UE compares described secondary signal quality and secondary signal quality target value, according to comparative result, obtains for controlling the second through-put power of the downlink transmission power of pilot bits and controls TPC2 order; Described secondary signal quality target value is to obtain according to described low power nodes and the corresponding total bit error rate of pilot bits or the total Block Error Rate of downlink data of described high power node down channel; Described UE sends to described low power nodes by described TPC2 order, adjusts the downlink transmission power of described pilot bits for described low power nodes.

The implementation possible according to the first of first aspect, in the possible implementation of the second of first aspect, described UE sends to described low power nodes by described TPC1 order, and described UE sends to described low power nodes to comprise described TPC2 order: described UE sends to described low power nodes by newly-increased up channel by described TPC1 order, and described UE sends to described low power nodes by being different from the up channel of described newly-increased up channel by described TPC2 order; Or described UE is by revising the form of up channel, in same time slot, timesharing sends described TPC1 order and described TPC2 order; Or described UE is by up channel, at different sending time slots, sends respectively described TPC1 order and described TPC2 order.

The implementation possible according to the second of first aspect, in the third possible implementation of first aspect, described method also comprises: described UE receives parameter information that network side issues by high-level signaling, that notify described UE to use, described parameter information comprises the channel code of described newly-increased up channel, or the data format of described up channel, or the sending time slots of the sending time slots of described TPC1 order and described TPC2 order.

According to first three of first aspect or first aspect, plant one of possible implementation, in the 4th kind of possible implementation of first aspect, user equipment (UE) also comprises before obtaining corresponding first signal quality according to the through-put power control TPC bit on low power nodes down channel: network side joins described low power nodes in Active Set; Or the High Speed Uplink Packet of UE access HSPA Serving cell is switched to by community corresponding to low power nodes the community that high power node is corresponding; Or UE receives the startup signaling that described network side issues.

Second aspect, the another kind of downlink transmission power control method that the embodiment of the present invention provides, comprising:

Low power nodes receives the first through-put power control TPC1 order that user equipment (UE) sends, and described TPC1 order is that described UE obtains by first signal quality corresponding to more described low power nodes down channel and first signal quality target value; Described first signal quality is according to the through-put power on low power nodes down channel, to control TPC bit to obtain, described first signal quality target value is to obtain according to the TPC order error rate of described TPC bit, and described UE is in described low power nodes and high power node soft handover area; Described low power nodes, according to described TPC1 order, is adjusted the downlink transmission power of described TPC bit.

In the possible implementation of the first of second aspect, described method also comprises: described low power nodes receives the second through-put power control TPC2 order that described UE sends, and described TPC2 order is that described UE is by relatively secondary signal quality and secondary signal quality target value obtain; Described secondary signal quality is that described UE obtains corresponding signal quality acquisition according to the pilot bits on described low power nodes and described high power node down channel, and described secondary signal quality target value is to obtain according to described low power nodes and the corresponding total bit error rate of pilot bits or the total Block Error Rate of downlink data of described high power node down channel; Described low power nodes, according to described TPC2 order, is adjusted the downlink transmission power of down channel pilot bits.

The implementation possible according to the first of second aspect, in the possible implementation of the second of second aspect, described method also comprises: it is benchmark that described low power nodes be take the downlink transmission power of described pilot bits, adjusts the through-put power for the down channel of transmitting downlink data.

According to the first of second aspect or the possible implementation of the second, in the third possible implementation of second aspect, described method also comprises: if the gap of the downlink transmission power of described TPC bit and the downlink transmission power of described pilot bits higher than default thresholding, described low power nodes stops sending downlink data to described UE.

According to first three of second aspect or second aspect, plant one of possible implementation, in the 4th kind of possible implementation of second aspect, described method also comprises: it is benchmark that described low power nodes be take the downlink transmission power of described TPC bit, adjusts shared control channel HS-SCCH for high speed descending sharing channel, strengthens dedicated channel absolute grant channel E-AGCH, strengthens dedicated channel hybrid automatic repeat request indication channel E-HICH and strengthens the downlink transmission power of dedicated channel relative authorization channel E-RGCH.

In the 5th kind of possible implementation of second aspect, described method also comprises: described high power node does not deal with received described TPC1 order.

The third aspect, a kind of data transmission method that the embodiment of the present invention provides, comprising:

The transmission quality that the first base station judgement connects the down channel of user equipment (UE) does not reach preset standard; Described the first base station stops sending downlink data to described UE, and described UE is in described the first base station and the second soft handover area, base station.

In the possible implementation of the first of the third aspect, the transmission quality that described the first base station judgement connects the down channel of described UE does not reach preset standard, comprising: the transmission quality that described the first base station judgement connects the down channel of described UE is connected the gap of transmission quality of down channel of described UE higher than default thresholding with described the second base station.

The implementation possible according to the first of the third aspect, in the possible implementation of the second of the third aspect, described the first base station is low power nodes, described the second base station is high power node, the transmission quality that described the first base station judgement connects the down channel of described UE is connected the gap of transmission quality of down channel of described UE higher than default thresholding with described the second base station, comprise: described low power nodes receives the first through-put power control TPC1 order that described UE sends, described TPC1 order is that described UE obtains by first signal quality corresponding to more described low power nodes down channel and first signal quality target value, described first signal quality is according to the through-put power on low power nodes down channel, to control TPC bit to obtain, and described first signal quality target value is to obtain according to the TPC order error rate of described TPC bit, described low power nodes, according to described TPC1 order, is adjusted the downlink transmission power of described TPC bit, described low power nodes receives the second through-put power control TPC2 order that described UE sends, and described TPC2 order is that described UE is by relatively secondary signal quality and secondary signal quality target value obtain, described secondary signal quality is that described UE obtains corresponding signal quality acquisition according to the pilot bits on described low power nodes and described high power node down channel, and described secondary signal quality target value is to obtain according to described low power nodes and the corresponding total bit error rate of pilot bits or the total Block Error Rate of downlink data of described high power node down channel, described low power nodes, according to described TPC2 order, is adjusted the downlink transmission power of down channel pilot bits, described low power nodes judges that the gap of the downlink transmission power of described TPC bit and the downlink transmission power of described pilot bits is higher than default thresholding.

In the third possible implementation of the third aspect, the transmission quality that described the first base station judgement connects the down channel of described UE does not reach preset standard, comprising: described the first base station judges that the channel quality indicator CQI of described UE transmission is lower than default CQI thresholding.

Fourth aspect, a kind of subscriber equipment that the embodiment of the present invention provides, comprising:

Processor, controls TPC bit according to the through-put power on low power nodes down channel and obtains corresponding first signal quality, and described UE is in described low power nodes and high power node soft handover area; Described first signal quality and first signal quality target value are compared, according to comparative result, obtain the first through-put power and control TPC1 order; Described first signal quality target value is to obtain according to the TPC order error rate of described TPC bit; Transmitter, sends to described low power nodes by described TPC1 order, adjusts the downlink transmission power of described TPC bit for described low power nodes.

In the possible implementation of the first of fourth aspect, described processor also for: obtain secondary signal quality, to be described UE obtain according to the pilot bits on described low power nodes and described high power node down channel described secondary signal quality that corresponding signal quality obtains; Described secondary signal quality and secondary signal quality target value are compared, according to comparative result, obtain for controlling the second through-put power of the downlink transmission power of pilot bits and control TPC2 order; Described secondary signal quality target value is to obtain according to described low power nodes and the corresponding total bit error rate of pilot bits or the total Block Error Rate of downlink data of described high power node down channel; Described transmitter also for: described TPC2 order is sent to described low power nodes, for described low power nodes, adjusts the downlink transmission power of described pilot bits.

The implementation possible according to the first of fourth aspect, in the possible implementation of the second of fourth aspect, described transmitter specifically for: by newly-increased up channel, described TPC1 order is sent to described low power nodes, by being different from the up channel of described newly-increased up channel, described TPC2 order is sent to described low power nodes; Or by revising the form of up channel, in same time slot, timesharing sends described TPC1 order and described TPC2 order; Or by up channel, at different sending time slots, send respectively described TPC1 order and described TPC2 order.

The implementation possible according to the second of fourth aspect, in the third possible implementation of fourth aspect, also comprise: receiver, that network side issues by high-level signaling for receiving, to notify described UE to use parameter information, described parameter information comprises the channel code of newly-increased up channel, or the data format of described up channel, or the sending time slots of the sending time slots of described TPC1 order and described TPC2 order.

According to first three of fourth aspect or second aspect, plant one of possible implementation, in the 4th kind of possible implementation of fourth aspect, described processor also for: access HSPA Serving cell by community corresponding to low power nodes, be switched to the community that high power node is corresponding; Or described receiver also for: receive the startup signaling that network side issues.

The 5th aspect, a kind of base station that the embodiment of the present invention provides, described base station is low power nodes, comprising:

Receiver, the first through-put power control TPC1 order sending for receiving user equipment (UE), described TPC1 order is that described UE obtains by first signal quality corresponding to more described low power nodes down channel and first signal quality target value; Described first signal quality is according to the through-put power on low power nodes down channel, to control TPC bit to obtain, described first signal quality target value is to obtain according to the TPC order error rate of described TPC bit, and described UE is in described low power nodes and high power node soft handover area; Processor, for according to described TPC1 order, adjusts the downlink transmission power of described TPC bit.

In the possible implementation of the first aspect the 5th, described receiver also for: receive the second through-put power that described UE sends and control TPC2 order, described TPC2 order is that described UE obtains by comparison secondary signal quality and secondary signal quality target value; Described secondary signal quality is that described UE obtains corresponding signal quality acquisition according to the pilot bits on described low power nodes and described high power node down channel, and described secondary signal quality target value is to obtain according to described low power nodes and the corresponding total bit error rate of pilot bits or the total Block Error Rate of downlink data of described high power node down channel; Described processor also for: according to described TPC2 order, adjust the downlink transmission power of down channel pilot bits.

The implementation possible according to the first of the 5th aspect, in the possible implementation of the second aspect the 5th, described processor also for: the downlink transmission power of described pilot bits of take is benchmark, adjusts the through-put power for the down channel of transmitting downlink data.

According to the first of the 5th aspect or the possible implementation of the second, in the third possible implementation aspect the 5th, described processor also for: judgement know the downlink transmission power of described TPC bit and the downlink transmission power of described pilot bits gap higher than default thresholding; Accordingly, described base station also comprises: transmitter, sends downlink data for stopping to described UE.

According to first three of the 5th aspect or the 5th aspect, plant one of possible implementation, in the 4th kind of possible implementation aspect the 5th, described processor also for: the downlink transmission power of described TPC bit of take is benchmark, adjusts shared control channel HS-SCCH for high speed descending sharing channel, strengthens dedicated channel absolute grant channel E-AGCH, strengthens dedicated channel hybrid automatic repeat request indication channel E-HICH and strengthens the downlink transmission power of dedicated channel relative authorization channel E-RGCH.

The 6th aspect, a kind of downlink transmission power control system that the embodiment of the present invention provides, comprising:

Subscriber equipment as described in arbitrary possible implementation in the third aspect, and the base station as described in arbitrary possible implementation in fourth aspect, communicate to connect between described subscriber equipment and described base station.

The 7th aspect, the another kind of base station that the embodiment of the present invention provides, described base station is the first base station, comprising:

Processor, for judging that the transmission quality of the down channel that connects user equipment (UE) does not reach preset standard; Transmitter, sends downlink data for stopping to described UE, and described UE is in described the first base station and the second soft handover area, base station.

In the possible implementation of the first aspect the 7th, the transmission quality that described processor connects the down channel of described UE specifically for: judgement is connected the gap of transmission quality of down channel of described UE higher than default thresholding with described the second base station.

The implementation possible according to the first of the 7th aspect, in the possible implementation of the second aspect the 7th, described the first base station is low power nodes, described the second base station is high power node, described base station also comprises: receiver, the the first through-put power control TPC1 order sending for receiving described UE, described TPC1 order is that described UE obtains by first signal quality corresponding to more described low power nodes down channel and first signal quality target value; Described first signal quality is according to the through-put power on low power nodes down channel, to control TPC bit to obtain, and described first signal quality target value is to obtain according to the TPC order error rate of described TPC bit; Described processor also for: according to described TPC1 order, adjust the downlink transmission power of described TPC bit; Described receiver also for: receive the second through-put power that described UE sends and control TPC2 order, described TPC2 order is that described UE obtains by comparison secondary signal quality and secondary signal quality target value; Described secondary signal quality is that described UE obtains corresponding signal quality acquisition according to the pilot bits on described low power nodes and described high power node down channel, and described secondary signal quality target value is to obtain according to described low power nodes and the corresponding total bit error rate of pilot bits or the total Block Error Rate of downlink data of described high power node down channel; Described processor also for: according to described TPC2 order, adjust the downlink transmission power of down channel pilot bits; Described processor also for: judge that the gap of the downlink transmission power of described TPC bit and the downlink transmission power of described pilot bits is higher than default thresholding.

In the third possible implementation aspect the 7th, described processor specifically for: judge that channel quality indicator CQI that described UE sends is lower than default CQI thresholding.

Downlink transmission power control method, Apparatus and system that the embodiment of the present invention provides, by comparing corresponding first signal quality and the first signal quality target value of low power nodes, obtain TPC1 order, wherein first signal quality target value is to obtain according to the TPC order error rate of the TPC bit of low power nodes down channel.Use TPC1 order can correctly control the TPC bit transmitting power of low power nodes, thereby improve the transmission performance of low power nodes down channel.

Accompanying drawing explanation

In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.

Fig. 1 is the flow chart of the embodiment mono-of downlink transmission power control method provided by the invention;

Fig. 2 is the flow chart of the embodiment bis-of downlink transmission power control method provided by the invention;

Fig. 3 is the structural representation of an embodiment of subscriber equipment provided by the invention;

Fig. 4 is the structural representation of an embodiment of base station provided by the invention

Fig. 5 is the flow chart of an embodiment of data transmission method provided by the invention;

Fig. 6 is the structural representation of another embodiment of base station provided by the invention.

Embodiment

For making object, technical scheme and the advantage of the embodiment of the present invention clearer, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.

Fig. 1 is the flow chart of the embodiment mono-of downlink transmission power control method provided by the invention, and as shown in Figure 1, the present embodiment be take subscriber equipment and the downlink transmission power control method of the embodiment of the present invention described as executive agent, and the present embodiment can comprise:

S110, user equipment (UE) are controlled TPC bit according to the through-put power on low power nodes down channel and are obtained corresponding first signal quality, and UE is in low power nodes and high power node soft handover area.

Specifically, take high power node as macro base station be example, in the situation that in the soft handover area of UE in LPN and high power node, such as UE is in soft handover area during near a side of macro base station, the downstream signal of the macro base station that UE receives is better than the downstream signal of LPN.UE can obtain first signal quality according to the TPC bit on LPN down channel so, first signal quality can be signal-to-jamming ratio corresponding to TPC bit on LPN down channel, also can be power spectral density (Ec/N0) corresponding to TPC bit on LPN down channel, this power spectrum density be the ratio of total reception signal of every chip (chip) received energy that the TPC bit on LPN down channel is corresponding and the TPC bit on LPN down channel.Particularly, the down channel of LPN can be downlink dedicated physical control channel (Downlink Dedicated Physical Control Channel, hereinafter to be referred as DL DPCCH), can be also f-dpch (Fraction DPCH, hereinafter to be referred as F-DPCH).

S120, UE compare first signal quality and first signal quality target value, obtain the first through-put power control TPC1 order according to comparative result; First signal quality target value is to obtain according to the TPC order error rate of TPC bit.

Particularly, if the down channel of LPN is DL DPCCH, UE can be according to the TPC order error rate of the TPC bit on the DL DPCCH of LPN so, first signal quality target value is set, wherein TPC order error rate is for example the error rate (Bit Error Rate, hereinafter to be referred as BER) of TPC bit; If the down channel of LPN is F-DPCH, UE can arrange first signal quality target value according to the TPC order error rate of the TPC bit on the F-DPCH of LPN so.UE obtains after first signal quality and first signal quality target value, and first signal quality and first signal quality target value are compared.If first signal quality is less than first signal quality target value, TPC1 order is power per liter order; If first signal quality is greater than first signal quality target value, TPC1 order is for falling power command.

S130, UE send to low power nodes by TPC1 order, adjust the downlink transmission power of TPC bit for low power nodes.

UE obtains after TPC1 order, and this TPC1 order is sent to LPN, and according to TPC1, order is specially power per liter order or falls power command LPN, the processing that LPN is carried out power per liter or falls power for sending the downlink transmission power of TPC bit.

The downlink transmission power control method that the present embodiment provides, subscriber equipment obtains TPC1 order by comparing corresponding first signal quality and the first signal quality target value of LPN down channel, and wherein first signal quality target value is to obtain according to the TPC order error rate of the TPC bit of LPN down channel.Use this TPC1 order can correctly control the TPC bit transmitting power of LPN, thereby improve the transmission performance of LPN down channel.

Further, on the basis of Fig. 1 embodiment, can also comprise: UE obtains secondary signal quality, secondary signal quality is that UE obtains corresponding signal quality acquisition according to the TPC bit on base station in service sector down channel; Secondary signal quality can be signal-to-jamming ratio corresponding to TPC bit on base station in service sector down channel, also can be power spectral density (Ec/N0) corresponding to TPC bit on base station in service sector down channel, this power spectrum density be the ratio of total reception signal of every chip (chip) received energy that the TPC bit on base station in service sector down channel is corresponding and the TPC bit on base station in service sector down channel.UE compares secondary signal quality and secondary signal quality target value, according to comparative result, obtains for controlling the second through-put power of the downlink transmission power of pilot bits and controls TPC2 order; Secondary signal quality target value is to obtain according to the TPC order error rate of TPC bit corresponding to the down channel of base station in service sector; Base station in service sector is for providing the base station of service for UE in LPN or high power node; UE sends to LPN by TPC2 order.

Particularly, for example, under the scene that is F-DPCH at the down channel of LPN, the secondary signal quality that UE can obtain according to the signal quality of the upper TPC bit of the F-DPCH of Serving cell, or UE can be by the F-DPCH of LPN and the high power node secondary signal quality that above the signal quality summation of TPC bit obtain; Simultaneously, UE can arrange secondary signal quality target value according to the TPC order error rate of the upper TPC bit of the F-DPCH of Serving cell, wherein, Serving cell is the community of the current access of UE, and base station in service sector can be currently in LPN or high power node to provide the base station of service for UE; UE compares secondary signal quality and secondary signal quality target value, if secondary signal quality is less than secondary signal quality target value, the TPC2 order of obtaining is power per liter order; If secondary signal quality is greater than secondary signal quality target value, the TPC2 order of obtaining is for falling power command.UE sends to LPN by the TPC2 order of obtaining, and UE also can send to high power node by the TPC2 order of obtaining simultaneously.

Further, on the basis of Fig. 1 embodiment, can also comprise: UE obtains secondary signal quality, secondary signal quality is that UE obtains corresponding signal quality acquisition according to the pilot bits on LPN and high power node down channel; UE compares secondary signal quality and secondary signal quality target value, according to comparative result, obtains for controlling the second through-put power of the downlink transmission power of pilot bits and controls TPC2 order; Secondary signal quality target value is to obtain according to LPN and the corresponding total bit error rate of pilot bits or the total Block Error Rate of downlink data of high power node down channel; UE sends to LPN by TPC2 order, adjusts the downlink transmission power of pilot bits for LPN.

Particularly, for example the down channel at LPN is under the scene of DL DPCCH, UE can also obtain corresponding signal quality according to the pilot bits on the DL DPCCH of LPN and high power node (pilot bit) so, and summation obtains secondary signal quality to signal quality; Simultaneously, UE can obtain secondary signal quality target value according to the total bit error rate of pilot bits corresponding to the DL DPCCH of LPN and high power node, and UE also can obtain secondary signal quality target value according to total Block Error Rate of downlink data corresponding to the DL DPCCH of LPN and high power node.UE compares secondary signal quality and secondary signal quality target value, if secondary signal quality is less than secondary signal quality target value, the TPC2 order of obtaining is power per liter order; If secondary signal quality is greater than secondary signal quality target value, the TPC2 order of obtaining is for falling power command.UE sends to LPN by the TPC2 order of obtaining, and UE also can send to high power node by the TPC2 order of obtaining simultaneously.

Further, on the basis of above-described embodiment, UE sends to LPN by TPC1 order, and UE sends to LPN to comprise TPC2 order: UE sends to described low power nodes by the first newly-increased up channel by described TPC1 order, and described UE sends to described low power nodes by the second newly-increased up channel by described TPC2 order; Or UE passes through to revise the form of up channel, timesharing transmission TPC1 order and TPC2 order in same time slot; Or UE is by up channel, at different sending time slots, sends respectively TPC1 order and TPC2 order.

In other words, UE can send TPC1 order and TPC2 order to low power nodes by several modes below:

Mode one: UE can send respectively TPC1 order and TPC2 order to low power nodes by different up channels.For example UE can pass through existing special physical controlling channel of upward (Uplink Dedicated Physical Control Channel, hereinafter to be referred as UL DPCCH) transmission TPC2 order, by newly-increased up channel, sends TPC1 order;

Mode two: UE can be by revising existing UL DPCCH, in the same time slot of UL DPCCH, do not send respectively in the same time TPC1 order and TPC2 order;

Mode three: UE can pass through existing UL DPCCH, at the different time-gap of UL DPCCH, sends respectively TPC1 order and TPC2 order.

In the embodiment of the present invention, the mode that UE sends TPC1 order and TPC2 order to low power nodes is not as limit.

Further, on the basis of above-described embodiment, can also comprise: UE receives parameter information that network side issues by high-level signaling, that notice UE is used, parameter information comprises the channel code of newly-increased up channel, or the data format of up channel, or the sending time slots of the sending time slots of TPC1 order and TPC2 order, or the default thresholding of the gap of the downlink transmission power of TPC bit and the downlink transmission power of pilot bits on down channel.The kind of parameter information is not as limit.

Particularly, high-level signaling can be radio resource control (Radio Resource Control, hereinafter to be referred as RRC) signaling, UE can accept the parameter information that the network of its access issues, and parameter information is mainly used in notifying UE by which kind of mode to come to send TPC1 order and TPC2 order to low power nodes.

Further, on the basis of above-described embodiment, user equipment (UE) also comprises before obtaining corresponding first signal quality according to the through-put power control TPC bit on low power nodes down channel: network side joins low power nodes in Active Set; Or the High Speed Uplink Packet of UE access HSPA Serving cell is switched to by community corresponding to low power nodes the community that high power node is corresponding; Or UE receives the startup signaling that network side issues.In other words, when the network of UE access is known in the soft handover area of UE in low power nodes and high power node, network can indicate UE to start to obtain first signal quality, and then obtain TPC1 order, and TPC1 order is sent to low power nodes, for low power nodes, send TPC bit and carry out the control of downlink transmission power.And in the situation that there is F-DPCH, when the network of UE access is known network side, can be radio network controller (the Radio Network Controller in network side, hereinafter to be referred as RNC) low power nodes is joined in Active Set or High Speed Uplink Packet access (the High Speed Uplink Packet Access of UE, hereinafter to be referred as HSPA) Serving cell is while being switched to community corresponding to high power node by community corresponding to low power nodes, network can indicate UE to start to obtain first signal quality, and then obtain TPC1 order, and TPC1 order is sent to low power nodes, for low power nodes, send TPC bit and carry out the control of downlink transmission power.Can be also thereby that UE receives the startup signaling that network side issues and starts to obtain first signal quality, start signaling and comprise high-level signaling or physical layer signaling.

The downlink transmission power control method that the present embodiment provides, by comparing corresponding first signal quality and the first signal quality target value of low power nodes down channel, obtain TPC1 order, wherein first signal quality target value is to obtain according to the TPC order error rate of the TPC bit of low power nodes down channel.And obtain TPC2 order by comparing corresponding secondary signal quality and the secondary signal quality target value of down channel of low power nodes and high power node, use TPC1 order and TPC2 order to control respectively the TPC bit of down channel of low power nodes and the transmitting power of pilot bits, thus the transmission performance of raising low power nodes down channel.

Fig. 2 is the flow chart of the embodiment bis-of downlink transmission power control method provided by the invention, as shown in Figure 2, the present embodiment be take low power nodes as executive agent, and the downlink transmission power control method of the embodiment of the present invention is described, and the present embodiment can comprise:

S210, low power nodes receive the first through-put power control TPC1 order that user equipment (UE) sends, and TPC1 order is that UE obtains by comparing corresponding first signal quality and the first signal quality target value of low power nodes down channel; First signal quality is according to the through-put power on low power nodes down channel, to control TPC bit to obtain, and first signal quality target value is to obtain according to the TPC order error rate of TPC bit, and UE is in low power nodes and high power node soft handover area.

Specifically, low power nodes can be LPN, and high power node can be macro base station.In the situation that in the soft handover area of UE in low power nodes and high power node, such as UE is in soft handover area during near a side of macro base station, the downstream signal of the macro base station that UE receives is better than the downstream signal of LPN.UE can obtain first signal quality according to the TPC bit on low power nodes down channel so, first signal quality can be signal-to-jamming ratio corresponding to TPC bit on low power nodes down channel, also can be power spectral density (Ec/N0) corresponding to TPC bit on low power nodes down channel, this power spectrum density be the ratio of total reception signal of every chip (chip) received energy that the TPC bit on low power nodes down channel is corresponding and the TPC bit on low power nodes down channel.Particularly, the down channel of low power nodes can be DL DPCCH, can be also F-DPCH.If the down channel of low power nodes is DL DPCCH, UE can arrange first signal quality target value according to the TPC order error rate of the TPC bit on the DL DPCCH of low power nodes so, and wherein TPC order error rate is for example the error rate of TPC bit; If the down channel of low power nodes is F-DPCH, UE can arrange first signal quality target value according to the TPC order error rate of the TPC bit on the F-DPCH of low power nodes so.UE obtains after first signal quality and first signal quality target value, and first signal quality and first signal quality target value are compared.If first signal quality is less than first signal quality target value, TPC1 order is power per liter order; If first signal quality is greater than first signal quality target value, TPC1 order is for falling power command.

S220, low power nodes, according to TPC1 order, are adjusted the downlink transmission power of TPC bit.

Low power nodes receives after the TPC1 order of UE transmission, if TPC1 order is power per liter order, low power nodes is to carrying out power per liter processing for sending the downlink transmission power of TPC bit; If TPC1 order is for falling power command, low power nodes is to falling Power Processing for sending the downlink transmission power of TPC bit.

The downlink transmission power control method that the present embodiment provides, first signal quality and the first signal quality target value corresponding by subscriber equipment comparison low power nodes down channel obtain TPC1 order, and wherein first signal quality target value is to obtain according to the TPC order error rate of the TPC bit of low power nodes down channel.The TPC bit transmitting power of low power nodes can be correctly controlled in the TPC1 order that low power nodes user's equipment sends, thereby improves the transmission performance of low power nodes down channel.

Further, on the basis of Fig. 2 embodiment, can also comprise: low power nodes receives the second through-put power control TPC2 order that UE sends, and TPC2 order is that UE is by relatively secondary signal quality and secondary signal quality target value obtain; Secondary signal quality is that UE obtains corresponding signal quality acquisition according to the pilot bits on low power nodes and high power node down channel, and secondary signal quality target value is to obtain according to low power nodes and the corresponding total bit error rate of pilot bits or the total Block Error Rate of downlink data of high power node down channel; Low power nodes, according to TPC2 order, is adjusted the downlink transmission power of down channel pilot bits.

Particularly, for example the down channel in low power nodes is under the scene of DL DPCCH, UE can also obtain corresponding signal quality according to the pilot bits on the DL DPCCH of low power nodes and high power node so, and summation obtains secondary signal quality to signal quality; Simultaneously, UE can obtain secondary signal quality target value according to the total bit error rate of pilot bits corresponding to the DL DPCCH of low power nodes and high power node, and UE also can obtain secondary signal quality target value according to total Block Error Rate of downlink data corresponding to the DL DPCCH of low power nodes and high power node.UE compares secondary signal quality and secondary signal quality target value, if secondary signal quality is less than secondary signal quality target value, the TPC2 order of obtaining is power per liter order; If secondary signal quality is greater than secondary signal quality target value, the TPC2 order of obtaining is for falling power command.Low power nodes receives the TPC2 order that UE sends, and according to TPC2 order, adjusts the downlink transmission power of down channel pilot bits.Meanwhile, high power node also can receive this TPC2 order that UE sends, and controls downlink transmission power according to this TPC2 order.

And under the scene that is F-DPCH at the down channel of low power nodes, UE can obtain secondary signal quality by the signal quality summation of the upper TPC bit of the F-DPCH of Serving cell, or UE can obtain secondary signal quality by the signal quality summation of the upper TPC bit of the F-DPCH of low power nodes and high power node; Meanwhile, UE can arrange secondary signal quality target value according to the TPC order error rate of the upper TPC bit of the F-DPCH of Serving cell, and wherein, Serving cell is the community of the current access of UE; UE compares secondary signal quality and secondary signal quality target value, if secondary signal quality is less than secondary signal quality target value, the TPC2 order of obtaining is power per liter order; If secondary signal quality is greater than secondary signal quality target value, the TPC2 order of obtaining is for falling power command.Low power nodes receives after the TPC2 order of UE transmission, ignore this TPC2 order, or low power nodes does not receive this TPC2 order.Meanwhile, high power node receives this TPC2 order that UE sends, and downlink transmission power is controlled.

Further, low power nodes can receive TPC1 order and the TPC2 order that UE sends by several modes below:

Mode one: low power nodes can receive TPC1 order and the TPC2 order that UE sends by different up channels.For example low power nodes can receive the TPC2 order that UE sends by existing UL DPCCH, by newly-increased up channel, receives the TPC1 order that UE sends;

Mode two: low power nodes can be in the same time slot of UL DPCCH does not receive respectively TPC1 order and the TPC2 order that UE sends in the same time;

Mode three: low power nodes can receive respectively at the different time-gap of UL DPCCH TPC1 order and the TPC2 order that UE sends.

In the embodiment of the present invention, the TPC1 order that low power nodes reception UE sends and the mode of TPC2 order be not as limit.

Further, it is benchmark that low power nodes can also be take the downlink transmission power of pilot bits, adjusts the through-put power for the down channel of transmitting downlink data.

Further, on the basis of above-described embodiment, if the gap of the downlink transmission power of TPC bit and the downlink transmission power of pilot bits higher than default thresholding, low power nodes stops sending downlink data to UE.Downlink data can be specifically the descending upper data of transmitting of Dedicated Physical Data Channel (Dedicated Physical Data Channel, hereinafter to be referred as DPDCH).

Further, on the basis of above-described embodiment, it is benchmark that low power nodes be take the downlink transmission power of TPC bit, adjust shared control channel (the Shared Control Channel for High Speed Downlink Shared Channel for high speed descending sharing channel, hereinafter to be referred as HS-SCCH), strengthen dedicated channel absolute grant channel (Enhanced Dedicated Channel Absolute Grant Channel, hereinafter to be referred as E-AGCH), strengthen dedicated channel hybrid automatic repeat request indication channel (Enhanced Dedicated Channel Hybrid ARQ Indicator Channel, hereinafter to be referred as E-HICH) and strengthen dedicated channel relative authorization channel (Enhanced Dedicated Channel Relative Grant Channel, hereinafter to be referred as E-RGCH) downlink transmission power.In other words, the downlink transmission power of low power nodes to HS-SCCH, E-AGCH, E-HICH and E-RGCH, the downlink transmission power of TPC bit of all take carries out equal proportion adjustment as fiducial value.

It should be noted that, if high power node receives the TPC1 order in above-described embodiment, ignore this TPC1 order.High power node is used the TPC2 order receiving to adjust downlink transmission power.

Fig. 3 is the structural representation of an embodiment of subscriber equipment provided by the invention, and as shown in Figure 3, the subscriber equipment 300 that the present embodiment provides can comprise: processor 310, transmitter 320 and receiver 330, particularly:

Processor 310, obtains corresponding first signal quality for controlling TPC bit according to the through-put power on low power nodes down channel, and UE is in low power nodes and high power node soft handover area; First signal quality and first signal quality target value are compared, according to comparative result, obtain the first through-put power and control TPC1 order; First signal quality target value is to obtain according to the TPC order error rate of TPC bit;

Transmitter 320, for TPC1 order is sent to low power nodes, adjusts the downlink transmission power of TPC bit for low power nodes.

Further, processor 310 also for: obtain secondary signal quality, to be UE obtain corresponding signal quality according to the pilot bits on low power nodes and high power node down channel to secondary signal quality obtains; Secondary signal quality and secondary signal quality target value are compared, according to comparative result, obtain for controlling the second through-put power of the downlink transmission power of pilot bits and control TPC2 order; Secondary signal quality target value is to obtain according to low power nodes and the corresponding total bit error rate of pilot bits or the total Block Error Rate of downlink data of high power node down channel; Transmitter 320 also for: TPC2 order is sent to low power nodes, for low power nodes, adjusts the downlink transmission power of pilot bits.

Further, transmitter 320 specifically for: by newly-increased up channel, described TPC1 order is sent to described low power nodes, by being different from the up channel of described newly-increased up channel, described TPC2 order is sent to described low power nodes; Or by revising the form of up channel, in same time slot, timesharing sends TPC1 order and TPC2 order; Or by up channel, at different sending time slots, send respectively TPC1 order and TPC2 order.

Further, receiver 330, receives parameter information that network side issues by high-level signaling, that notice UE is used, and parameter information comprises the channel code of newly-increased up channel, or the data format of up channel, or the sending time slots of the sending time slots of TPC1 order and TPC2 order.

Further, processor 310 also for: access HSPA Serving cell by community corresponding to low power nodes, be switched to the community that high power node is corresponding; Or receiver 330 also for: receive the startup signaling that network side issues.

The subscriber equipment 300 that the present embodiment provides, can be for the technical scheme of embodiment of the method shown in execution graph 1, and it realizes principle and technique effect is similar, repeats no more herein.

Fig. 4 is the structural representation of an embodiment of base station provided by the invention, and as shown in Figure 4, the base station 400 that the present embodiment provides can be low power nodes, and base station 400 can comprise: receiver 410, processor 420 and transmitter 430, particularly:

Receiver 410, the first through-put power control TPC1 order sending for receiving user equipment (UE), TPC1 order is that UE obtains by comparing corresponding first signal quality and the first signal quality target value of low power nodes down channel; First signal quality is according to the through-put power on low power nodes down channel, to control TPC bit to obtain, and first signal quality target value is to obtain according to the TPC order error rate of TPC bit, and UE is in low power nodes and high power node soft handover area;

Processor 420, for according to TPC1 order, adjusts the downlink transmission power of TPC bit.

Further, receiver 410 also for: receive the second through-put power that UE sends and control TPC2 order, TPC2 order is that UE obtains by comparison secondary signal quality and secondary signal quality target value; Secondary signal quality is that UE obtains corresponding signal quality acquisition according to the pilot bits on low power nodes and high power node down channel, and secondary signal quality target value is to obtain according to low power nodes and the corresponding total bit error rate of pilot bits or the total Block Error Rate of downlink data of high power node down channel; Processor 420 also for: according to TPC2 order, adjust the downlink transmission power of down channel pilot bits.

Further, processor 420 also for: the downlink transmission power of pilot bits of take is benchmark, adjusts the through-put power for the down channel of transmitting downlink data.

Further, processor 420 also for: judgement know the downlink transmission power of TPC bit and the downlink transmission power of pilot bits gap higher than default thresholding; Accordingly, transmitter 430, sends downlink data for stopping to UE.

Further, processor 420 also for: the downlink transmission power of TPC bit of take is benchmark, adjusts shared control channel HS-SCCH for high speed descending sharing channel, strengthens dedicated channel absolute grant channel E-AGCH, strengthens dedicated channel hybrid automatic repeat request indication channel E-HICH and strengthens the downlink transmission power of dedicated channel relative authorization channel E-RGCH.

The base station 400 that the present embodiment provides, can be for the technical scheme of embodiment of the method shown in execution graph 2, and it realizes principle and technique effect is similar, repeats no more herein.

In addition, the embodiment of the present invention also provides a kind of downlink transmission power control system, can comprise: the arbitrary subscriber equipment in embodiment as shown in Figure 3, and the arbitrary base station in embodiment as shown in Figure 4, communicate to connect between subscriber equipment and base station.

In sum, downlink transmission power control method, Apparatus and system that the present embodiment provides, by comparing corresponding first signal quality and the first signal quality target value of low power nodes down channel, obtain TPC1 order, wherein first signal quality target value is to obtain according to the TPC order error rate of the TPC bit of low power nodes down channel.And obtain TPC2 order by comparing corresponding secondary signal quality and the secondary signal quality target value of down channel of low power nodes and high power node, use TPC1 order and TPC2 order to control respectively the TPC bit of down channel of low power nodes and the transmitting power of pilot bits, thus the transmission performance of raising low power nodes down channel.

Fig. 5 is the flow chart of an embodiment of data transmission method provided by the invention, and as shown in Figure 5, the data transmission method that the present embodiment provides can comprise:

The transmission quality that S510, the first base station judgement connect the down channel of user equipment (UE) does not reach preset standard;

S520, the first base station stop sending downlink data to UE, and UE is in the first base station and the second soft handover area, base station.

The data transmission method that the present embodiment provides, the transmission quality of the down channel of the UE by judgement in soft handover area does not reach preset standard, determines and stops sending downlink data to UE, thereby saved Internet resources, has guaranteed transmission quality.

Further, the transmission quality that the first base station judgement connects the down channel of UE does not reach preset standard, comprising: the transmission quality that the first base station judgement connects the down channel of UE is connected the gap of transmission quality of down channel of UE higher than default thresholding with the second base station.For example, the first base station the sends error rate from the down channel of downlink data to UE sends value that the error rate of down channel of downlink data is little higher than default thresholding to UE than the second base station, and the first base station stops to UE transmission downlink data so.

Further, described the first base station is low power nodes, described the second base station is high power node, and the transmission quality that the first base station judgement connects the down channel of UE is connected the gap of transmission quality of down channel of UE higher than default thresholding with the second base station, comprising:

Low power nodes receives the first through-put power control TPC1 order that UE sends, and TPC1 order is that UE obtains by comparing corresponding first signal quality and the first signal quality target value of low power nodes down channel; First signal quality is according to the through-put power on low power nodes down channel, to control TPC bit to obtain, and first signal quality target value is to obtain according to the TPC order error rate of TPC bit;

Low power nodes, according to TPC1 order, is adjusted the downlink transmission power of TPC bit;

Low power nodes receives the second through-put power control TPC2 order that UE sends, and TPC2 order is that UE is by relatively secondary signal quality and secondary signal quality target value obtain; Secondary signal quality is that UE obtains corresponding signal quality acquisition according to the pilot bits on low power nodes and high power node down channel, and secondary signal quality target value is to obtain according to low power nodes and the corresponding total bit error rate of pilot bits or the total Block Error Rate of downlink data of high power node down channel;

Low power nodes, according to TPC2 order, is adjusted the downlink transmission power of down channel pilot bits;

The gap of the downlink transmission power of low power nodes judgement TPC bit and the downlink transmission power of pilot bits is higher than default thresholding.

Wherein, first signal quality can be signal-to-jamming ratio corresponding to TPC bit on low power nodes down channel, also can be power spectral density (Ec/N0) corresponding to TPC bit on low power nodes down channel, this power spectrum density be the ratio of total reception signal of every chip (chip) received energy that the TPC bit on low power nodes down channel is corresponding and the TPC bit on low power nodes down channel.TPC order error rate is for example the error rate of TPC bit.

Further, the transmission quality that the first base station judgement connects the down channel of UE does not reach preset standard, comprising: the channel quality indicator CQI that the first base station judgement UE sends is lower than default CQI thresholding.

The data transmission method that the present embodiment provides, can judge that the transmission quality of the down channel of the UE in soft handover area does not reach preset standard in several ways, determines and stops sending downlink data to UE, thereby saved Internet resources, has guaranteed transmission quality.

Fig. 6 is the structural representation of another embodiment of base station provided by the invention, and as shown in Figure 6, the base station 600 that the present embodiment provides can be the first base station, and base station 600 can comprise: processor 610, transmitter 620 and receiver 630, particularly:

Processor 610, for judging that the transmission quality of the down channel that connects user equipment (UE) does not reach preset standard;

Transmitter 620, sends downlink data for stopping to UE, and UE is in the first base station and the second soft handover area, base station.

Further, the transmission quality that processor 610 connects the down channel of UE specifically for: judgement is connected the gap of transmission quality of down channel of UE higher than default thresholding with the second base station.

Further, described the first base station is low power nodes, described the second base station is high power node, receiver 630, the the first through-put power control TPC1 order sending for receiving UE, TPC1 order is that UE obtains by comparing corresponding first signal quality and the first signal quality target value of low power nodes down channel; First signal quality is according to the through-put power on low power nodes down channel, to control TPC bit to obtain, and first signal quality target value is to obtain according to the TPC order error rate of TPC bit; Processor 610, for according to TPC1 order, adjusts the downlink transmission power of TPC bit; Receiver 630 also for: receive the second through-put power that UE sends and control TPC2 order, TPC2 order is that UE obtains by comparison secondary signal quality and secondary signal quality target value; Secondary signal quality is that UE obtains corresponding signal quality acquisition according to the pilot bits on low power nodes and high power node down channel, and secondary signal quality target value is to obtain according to low power nodes and the corresponding total bit error rate of pilot bits or the total Block Error Rate of downlink data of high power node down channel; Processor 610 also for: according to TPC2 order, adjust the downlink transmission power of down channel pilot bits; Processor 610 also for: the gap of the downlink transmission power of judgement TPC bit and the downlink transmission power of pilot bits is higher than default thresholding.

Further, processor 610 specifically for: the channel quality indicator CQI that judgement UE sends is lower than default CQI thresholding.

The base station 600 that the present embodiment provides, can be for the technical scheme of embodiment of the method shown in execution graph 4, and it realizes principle and technique effect is similar, repeats no more herein.

The data transmission method that the embodiment of the present invention provides and base station, can judge in several ways that the transmission quality of the down channel of the UE in soft handover area does not reach preset standard, determine and stop sending downlink data to UE, thereby saved Internet resources, guaranteed transmission quality.

In several embodiment provided by the present invention, should be understood that disclosed apparatus and method can realize by another way.For example, device embodiment described above is only schematic, for example, the division of described unit, be only that a kind of logic function is divided, during actual realization, can have other dividing mode, for example a plurality of unit or assembly can in conjunction with or can be integrated into another system, or some features can ignore, or do not carry out.Another point, shown or discussed coupling each other or direct-coupling or communication connection can be by some interfaces, indirect coupling or the communication connection of device or unit can be electrically, machinery or other form.

The described unit as separating component explanation can or can not be also physically to separate, and the parts that show as unit can be or can not be also physical locations, can be positioned at a place, or also can be distributed in a plurality of network element.Can select according to the actual needs some or all of unit wherein to realize the object of the present embodiment scheme.

In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, can be also that the independent physics of unit exists, and also can be integrated in a unit two or more unit.Above-mentioned integrated unit both can adopt the form of hardware to realize, and the form that also can adopt hardware to add SFU software functional unit realizes.

The integrated unit that the above-mentioned form with SFU software functional unit realizes, can be stored in a computer read/write memory medium.Above-mentioned SFU software functional unit is stored in a storage medium, comprise that some instructions are with so that a computer equipment (can be personal computer, server, or the network equipment etc.) or processor (processor) carry out the part steps of method described in each embodiment of the present invention.And aforesaid storage medium comprises: various media that can be program code stored such as USB flash disk, portable hard drive, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disc or CDs.

Those skilled in the art can be well understood to, for convenience and simplicity of description, only the division with above-mentioned each functional module is illustrated, in practical application, can above-mentioned functions be distributed and by different functional modules, completed as required, the internal structure that is about to device is divided into different functional modules, to complete all or part of function described above.The specific works process of the device of foregoing description, can, with reference to the corresponding process in preceding method embodiment, not repeat them here.

Finally it should be noted that: each embodiment, only in order to technical scheme of the present invention to be described, is not intended to limit above; Although the present invention is had been described in detail with reference to aforementioned each embodiment, those of ordinary skill in the art is to be understood that: its technical scheme that still can record aforementioned each embodiment is modified, or some or all of technical characterictic is wherein equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.

Claims

1. a downlink transmission power control method, is characterized in that, comprising:

User equipment (UE) is controlled TPC bit according to the through-put power on low power nodes down channel and is obtained corresponding first signal quality, and described UE is in described low power nodes and high power node soft handover area;

Described UE compares described first signal quality and first signal quality target value, obtains the first through-put power control TPC1 order according to comparative result; Described first signal quality target value is to obtain according to the TPC order error rate of described TPC bit;

Described UE sends to described low power nodes by described TPC1 order, adjusts the downlink transmission power of described TPC bit for described low power nodes.

2. method according to claim 1, is characterized in that, described method also comprises:

Described UE obtains secondary signal quality, and described secondary signal quality is that described UE obtains corresponding signal quality acquisition according to the pilot bits on described low power nodes and described high power node down channel;

Described UE compares described secondary signal quality and secondary signal quality target value, according to comparative result, obtains for controlling the second through-put power of the downlink transmission power of pilot bits and controls TPC2 order; Described secondary signal quality target value is to obtain according to described low power nodes and the corresponding total bit error rate of pilot bits or the total Block Error Rate of downlink data of described high power node down channel;

Described UE sends to described low power nodes by described TPC2 order, adjusts the downlink transmission power of described pilot bits for described low power nodes.

3. method according to claim 2, is characterized in that, described UE sends to described low power nodes by described TPC1 order, and described UE sends to described low power nodes to comprise described TPC2 order:

Described UE sends to described low power nodes by newly-increased up channel by described TPC1 order, and described UE sends to described low power nodes by being different from the up channel of described newly-increased up channel by described TPC2 order; Or

Described UE is by revising the form of up channel, and in same time slot, timesharing sends described TPC1 order and described TPC2 order; Or

Described UE, by up channel, sends respectively described TPC1 order and described TPC2 order at different sending time slots.

4. method according to claim 3, is characterized in that, described method also comprises:

Described UE reception network side parameter information that issue by high-level signaling, that notify described UE to use, described parameter information comprises the channel code of described newly-increased up channel, or the data format of described up channel, or the sending time slots of the sending time slots of described TPC1 order and described TPC2 order.

5. according to the arbitrary described method of claim 1 to 4, it is characterized in that, user equipment (UE) also comprises before obtaining corresponding first signal quality according to the through-put power control TPC bit on low power nodes down channel:

Network side joins described low power nodes in Active Set; Or

The High Speed Uplink Packet access HSPA Serving cell of UE is switched to by community corresponding to low power nodes the community that high power node is corresponding; Or

UE receives the startup signaling that described network side issues.

6. a downlink transmission power control method, is characterized in that, comprising:

Low power nodes receives the first through-put power control TPC1 order that user equipment (UE) sends, and described TPC1 order is that described UE obtains by first signal quality corresponding to more described low power nodes down channel and first signal quality target value; Described first signal quality is according to the through-put power on low power nodes down channel, to control TPC bit to obtain, described first signal quality target value is to obtain according to the TPC order error rate of described TPC bit, and described UE is in described low power nodes and high power node soft handover area;

Described low power nodes, according to described TPC1 order, is adjusted the downlink transmission power of described TPC bit.

7. method according to claim 6, is characterized in that, described method also comprises:

Described low power nodes receives the second through-put power control TPC2 order that described UE sends, and described TPC2 order is that described UE is by relatively secondary signal quality and secondary signal quality target value obtain; Described secondary signal quality is that described UE obtains corresponding signal quality acquisition according to the pilot bits on described low power nodes and described high power node down channel, and described secondary signal quality target value is to obtain according to described low power nodes and the corresponding total bit error rate of pilot bits or the total Block Error Rate of downlink data of described high power node down channel;

Described low power nodes, according to described TPC2 order, is adjusted the downlink transmission power of down channel pilot bits.

8. method according to claim 7, is characterized in that, described method also comprises:

It is benchmark that described low power nodes be take the downlink transmission power of described pilot bits, adjusts the through-put power for the down channel of transmitting downlink data.

9. according to the method described in claim 7 or 8, it is characterized in that, described method also comprises:

If the gap of the downlink transmission power of described TPC bit and the downlink transmission power of described pilot bits is higher than default thresholding, described low power nodes stops sending downlink data to described UE.

10. according to the method described in any one in claim 6 to 9, it is characterized in that, described method also comprises:

It is benchmark that described low power nodes be take the downlink transmission power of described TPC bit, adjusts shared control channel HS-SCCH for high speed descending sharing channel, strengthens dedicated channel absolute grant channel E-AGCH, strengthens dedicated channel hybrid automatic repeat request indication channel E-HICH and strengthens the downlink transmission power of dedicated channel relative authorization channel E-RGCH.

11. methods according to claim 7, is characterized in that, described method also comprises: described high power node does not deal with received described TPC1 order.

12. 1 kinds of data transmission methods, is characterized in that, comprising:

The transmission quality that the first base station judgement connects the down channel of user equipment (UE) does not reach preset standard;

Described the first base station stops sending downlink data to described UE, and described UE is in described the first base station and the second soft handover area, base station.

13. methods according to claim 12, is characterized in that, the transmission quality that described the first base station judgement connects the down channel of described UE does not reach preset standard, comprising:

The transmission quality that described the first base station judgement connects the down channel of described UE is connected the gap of transmission quality of down channel of described UE higher than default thresholding with described the second base station.

14. methods according to claim 13, it is characterized in that, described the first base station is low power nodes, described the second base station is high power node, the transmission quality that described the first base station judgement connects the down channel of described UE is connected the gap of transmission quality of down channel of described UE higher than default thresholding with described the second base station, comprising:

Described low power nodes receives the first through-put power control TPC1 order that described UE sends, and described TPC1 order is that described UE obtains by first signal quality corresponding to more described low power nodes down channel and first signal quality target value; Described first signal quality is according to the through-put power on low power nodes down channel, to control TPC bit to obtain, and described first signal quality target value is to obtain according to the TPC order error rate of described TPC bit;

Described low power nodes, according to described TPC1 order, is adjusted the downlink transmission power of described TPC bit;

Described low power nodes, according to described TPC2 order, is adjusted the downlink transmission power of down channel pilot bits;

Described low power nodes judges that the gap of the downlink transmission power of described TPC bit and the downlink transmission power of described pilot bits is higher than default thresholding.

15. methods according to claim 12, is characterized in that, the transmission quality that described the first base station judgement connects the down channel of described UE does not reach preset standard, comprising:

Described the first base station judges that the channel quality indicator CQI of described UE transmission is lower than default CQI thresholding.

16. 1 kinds of subscriber equipmenies, is characterized in that, comprising:

Processor, obtains corresponding first signal quality for controlling TPC bit according to the through-put power on low power nodes down channel, and described UE is in described low power nodes and high power node soft handover area; Described first signal quality and first signal quality target value are compared, according to comparative result, obtain the first through-put power and control TPC1 order; Described first signal quality target value is to obtain according to the TPC order error rate of described TPC bit;

Transmitter, for described TPC1 order is sent to described low power nodes, adjusts the downlink transmission power of described TPC bit for described low power nodes.

17. subscriber equipmenies according to claim 16, is characterized in that,

Described processor also for: obtain secondary signal quality, to be described UE obtain according to the pilot bits on described low power nodes and described high power node down channel described secondary signal quality that corresponding signal quality obtains; Described secondary signal quality and secondary signal quality target value are compared, according to comparative result, obtain for controlling the second through-put power of the downlink transmission power of pilot bits and control TPC2 order; Described secondary signal quality target value is to obtain according to described low power nodes and the corresponding total bit error rate of pilot bits or the total Block Error Rate of downlink data of described high power node down channel;

Described transmitter also for: described TPC2 order is sent to described low power nodes, for described low power nodes, adjusts the downlink transmission power of described pilot bits.

18. subscriber equipmenies according to claim 17, is characterized in that, described transmitter specifically for:

By newly-increased up channel, described TPC1 order is sent to described low power nodes, by being different from the up channel of described newly-increased up channel, described TPC2 order is sent to described low power nodes; Or

By revising the form of up channel, in same time slot, timesharing sends described TPC1 order and described TPC2 order; Or

By up channel, at different sending time slots, send respectively described TPC1 order and described TPC2 order.

19. subscriber equipmenies according to claim 18, is characterized in that, also comprise:

Receiver, that network side issues by high-level signaling for receiving, to notify described UE to use parameter information, described parameter information comprises the channel code of newly-increased up channel, or the data format of described up channel, or the sending time slots of the sending time slots of described TPC1 order and described TPC2 order.

20. according to claim 16 to arbitrary described subscriber equipment in 19, it is characterized in that,

Described processor also for: access HSPA Serving cell by community corresponding to low power nodes, be switched to the community that high power node is corresponding; Or

Described receiver also for: receive the startup signaling that network side issues.

21. 1 kinds of base stations, described base station is low power nodes, it is characterized in that, comprising:

Receiver, the first through-put power control TPC1 order sending for receiving user equipment (UE), described TPC1 order is that described UE obtains by first signal quality corresponding to more described low power nodes down channel and first signal quality target value; Described first signal quality is according to the through-put power on low power nodes down channel, to control TPC bit to obtain, described first signal quality target value is to obtain according to the TPC order error rate of described TPC bit, and described UE is in described low power nodes and high power node soft handover area;

Processor, for according to described TPC1 order, adjusts the downlink transmission power of described TPC bit.

22. base stations according to claim 21, is characterized in that,

Described receiver also for: receive the second through-put power that described UE sends and control TPC2 order, described TPC2 order is that described UE obtains by comparison secondary signal quality and secondary signal quality target value; Described secondary signal quality is that described UE obtains corresponding signal quality acquisition according to the pilot bits on described low power nodes and described high power node down channel, and described secondary signal quality target value is to obtain according to described low power nodes and the corresponding total bit error rate of pilot bits or the total Block Error Rate of downlink data of described high power node down channel;

Described processor also for: according to described TPC2 order, adjust the downlink transmission power of down channel pilot bits.

23. base stations according to claim 22, is characterized in that, described processor also for:

The downlink transmission power of described pilot bits of take is benchmark, adjusts the through-put power for the down channel of transmitting downlink data.

24. according to the base station described in claim 22 or 23, it is characterized in that,

Described processor also for: judgement know the downlink transmission power of described TPC bit and the downlink transmission power of described pilot bits gap higher than default thresholding; Accordingly, described base station also comprises:

Transmitter, sends downlink data for stopping to described UE.

25. according to the base station described in any one in claim 21 to 24, it is characterized in that,

Described processor also for: the downlink transmission power of described TPC bit of take is benchmark, adjusts shared control channel HS-SCCH for high speed descending sharing channel, strengthens dedicated channel absolute grant channel E-AGCH, strengthens dedicated channel hybrid automatic repeat request indication channel E-HICH and strengthens the downlink transmission power of dedicated channel relative authorization channel E-RGCH.

26. 1 kinds of downlink transmission power control system, is characterized in that, comprising:

As the subscriber equipment as described in arbitrary in claim 16～20, and as the base station as described in arbitrary in claim 21～25, between described subscriber equipment and described base station, communicate to connect.

27. 1 kinds of base stations, described base station is the first base station, it is characterized in that, comprising:

Processor, for judging that the transmission quality of the down channel that connects user equipment (UE) does not reach preset standard;

Transmitter, sends downlink data for stopping to described UE, and described UE is in described the first base station and the second soft handover area, base station.

28. base stations according to claim 27, is characterized in that, described processor specifically for:

The transmission quality that judgement connects the down channel of described UE is connected the gap of transmission quality of down channel of described UE higher than default thresholding with described the second base station.

29. base stations according to claim 28, is characterized in that, described the first base station is low power nodes, and described the second base station is high power node, and described base station also comprises:

Receiver, the first through-put power control TPC1 order sending for receiving described UE, described TPC1 order is that described UE obtains by first signal quality corresponding to more described low power nodes down channel and first signal quality target value; Described first signal quality is according to the through-put power on low power nodes down channel, to control TPC bit to obtain, and described first signal quality target value is to obtain according to the TPC order error rate of described TPC bit;

Described processor also for: according to described TPC1 order, adjust the downlink transmission power of described TPC bit;

Described processor also for: according to described TPC2 order, adjust the downlink transmission power of down channel pilot bits;

Described processor also for: judge that the gap of the downlink transmission power of described TPC bit and the downlink transmission power of described pilot bits is higher than default thresholding.

30. base stations according to claim 27, is characterized in that, described processor specifically for:

Judge that the channel quality indicator CQI of described UE transmission is lower than default CQI thresholding.