WO2015027426A1

WO2015027426A1 - Method and device for controlling outer loop power

Info

Publication number: WO2015027426A1
Application number: PCT/CN2013/082548
Authority: WO
Inventors: 朱有团; 葛莉玮
Original assignee: 华为技术有限公司
Priority date: 2013-08-29
Filing date: 2013-08-29
Publication date: 2015-03-05
Also published as: CN104737598A; CN104737598B

Abstract

Embodiments of the present invention provide a method and a device for controlling outer loop power. The method comprises: obtaining a Signal to Interference Ratio (SIR) target value of a control channel and an SIR target value of a data channel; based on the SIR target value of the control channel and the SIR target value of the data channel, determining an SIR target value of outer loop power control. In the embodiments of the present invention, a network side device not only obtains the SIR target value of the data channel but also obtains the SIR target value of the control channel, and determines the SIR target value of outer loop power control based on the SIR target value of the control channel and the SIR target value of the data channel, which effectively ensures performance matching between the uplink control channel and the data channel, thus improving accuracy of power control, and reducing uplink interference.

Description

Outer loop power control method and device

Embodiments of the present invention relate to the field of communications technologies and, more particularly, to an outer loop power control method and apparatus. Background technique

In the communication system, power control is adopted so that all UEs (User Equipments) in the cell arrive at the base station, and the signal level is basically maintained at a minimum level that can ensure communication quality requirements. Power control can reduce the mutual interference of users in the system and ensure the normal operation of uplink communication.

In the uplink and downlink unbalanced areas (such as the soft handoff area of the macro-hybrid networking scenario), some uplink control channels received only by the primary serving cell (such as HS-DPCCH (High Speed Dedicated Physical Control Channel) The performance and the data channel performance received by the primary serving cell and the non-primary serving cell based on the uplink active set may have a mismatch. This is because there is a multi-cell combining gain for the data channel (e.g., E-DPDCH (Evolved Dedicated Physical Data Channel)), and there is no multi-cell merging for other control channels. Therefore, adjusting the SIR (Signal to Interference Ratio) target value of the outer loop power control based on the reception quality of the E-DPDCH cannot guarantee the performance of the uplink control channel received only by the primary serving cell.

The prior art compensates for the performance mismatch between channels by setting a fixed power offset, which usually leads to excessive power redundancy of the control channel or the data channel, and causes strong interference to the UE of the non-primary serving cell in the uplink active set. . Summary of the invention

The embodiment of the invention provides an outer loop power control method and device, which can improve the accuracy of the power control and reduce the uplink interference.

In a first aspect, an outer loop power control method is provided, the method comprising: acquiring a signal to interference ratio SIR target value of a control channel and an SIR target value of a data channel; and determining an SIR target value of the control channel and the data channel The SIR target value determines the SIR target value of the outer loop power control.

With reference to the first aspect, in another implementation manner of the first aspect, determining an SIR target value of the outer loop power control according to the SIR target value of the control channel and the SIR target value of the data channel The method further includes: adjusting a power offset of the control channel according to an SIR target value of the control channel and an SIR target value of the data channel; and adjusting an amount according to a power offset of the control channel The SIR target value of the control channel is adjusted; the determining the SIR target value of the outer loop power control according to the SIR target value of the control channel and the SIR target value of the data channel, including: according to the SIR target of the data channel The value and the adjusted SIR target value of the control channel determine the SIR target value of the outer loop power control.

In another implementation manner of the first aspect, the SIR target value of the control channel and the SIR target value of the data channel are adjusted according to the implementation of the first aspect or the foregoing implementation manner. The power offset of the control channel includes: when an SIR target value of the data channel is greater than an SIR target value of the control channel, according to an SIR target value of the data channel and an SIR target value of the control channel The difference adjusts the power offset of the control channel.

With reference to the first aspect, or any one of the foregoing implementation manners, in another implementation manner of the first aspect, the SIR of the control channel according to an adjustment amount of a power offset of the control channel Adjusting the target value, including: when reducing the power offset of the control channel, adding the SIR target value of the control channel to the reduction of the power offset of the control channel as the adjusted control channel The SIR target value.

With reference to the first aspect, or any one of the foregoing implementation manners, in another implementation manner of the first aspect, the SIR target value according to the control channel and the SIR target value of the data channel Before determining the SIR target value of the outer loop power control, the method further includes: adjusting a power offset of the data channel according to an SIR target value of the data channel and an SIR target value of the control channel; according to the data channel Adjusting the SIR target value of the data channel by adjusting the SIR target value of the data channel; determining the SIR target value of the outer loop power control according to the SIR target value of the control channel and the SIR target value of the data channel, including And determining an SIR target value of the outer loop power control according to the SIR target value of the control channel and the adjusted SIR target value of the data channel.

In another implementation manner of the first aspect, the SIR target value of the data channel and the SIR target value of the control channel are adjusted according to the implementation of the first aspect or the foregoing implementation manner. The power offset of the data channel includes: when an SIR target value of the control channel is greater than an SIR target value of the data channel, according to an SIR target value of the control channel and an SIR target value of the data channel The difference adjusts the power offset of the data channel.

With reference to the first aspect, or any one of the foregoing implementation manners, in another implementation manner of the first aspect, the adjusting, by the power offset of the data channel, the data Adjusting the SIR target value of the channel, including: when reducing the power offset of the data channel, adding the SIR target value of the data channel plus the power offset of the data channel as the adjusted location The SIR target value of the data channel.

With reference to the first aspect, or any one of the foregoing implementation manners, in another implementation manner of the first aspect, the determining, according to an SIR target value of the control channel and an SIR target value of the data channel, The SIR target value of the outer loop power control includes: determining a larger one of the SIR target value of the control channel and the SIR target value of the data channel as the SIR target value of the outer loop power control.

With reference to the first aspect, or any one of the foregoing implementation manners, in another implementation manner of the first aspect, the acquiring a signal interference ratio SIR target value of the control channel and an SIR target value of the data channel, including Obtaining an SIR target value of the control channel according to a receiving quality of the control channel, and acquiring an SIR target value of the data channel according to a receiving quality of the data channel.

With reference to the first aspect, or any one of the foregoing implementation manners, in another implementation manner of the first aspect, the control channel includes a high-speed dedicated physical control channel HS-DPCCH or an enhanced dedicated physical control channel E -DPCCH.

With reference to the first aspect, or any one of the foregoing implementation manners, in another implementation manner of the first aspect, the data of the control channel is received by a primary serving cell in a macro-micro-network, the data The data of the channel is jointly received by the primary and secondary serving cells in the macro network.

The second aspect provides a network side device, where the network side device includes: an acquiring unit, configured to acquire a signal to interference ratio SIR target value of the control channel and an SIR target value of the data channel; and a determining unit, configured to obtain according to the acquiring The SIR target value of the control channel acquired by the unit and the SIR target value of the data channel determine an SIR target value of the outer loop power control.

With reference to the second aspect, in another implementation manner of the second aspect, the network side device further includes a first adjusting unit, where the first adjusting unit is configured to be used according to the control channel acquired by the acquiring unit Adjusting a power offset of the control channel by an SIR target value and an SIR target value of the data channel, and adjusting an SIR target value of the control channel according to an adjustment amount of a power offset of the control channel; Specifically, the SIR target value of the outer loop power control is determined according to the SIR target value of the data channel acquired by the acquiring unit and the adjusted SIR target value of the control channel adjusted by the first adjusting unit. .

With reference to the second aspect, or any one of the foregoing implementation manners, in another implementation manner of the second aspect, the first adjusting unit is specifically configured to: when the SIR target of the data channel When the value is greater than the SIR target value of the control channel, the power offset of the control channel is adjusted according to a difference between an SIR target value of the data channel and an SIR target value of the control channel.

With reference to the second aspect, or any one of the foregoing implementation manners, in another implementation manner of the second aspect, the first adjusting unit is specifically configured to: when reducing a power offset of the control channel And determining, by using the SIR target value of the control channel and the power offset of the control channel as the SIR target value of the adjusted control channel.

In conjunction with the second aspect, or any one of the foregoing implementation manners, in another implementation manner of the second aspect, the network side device further includes a second adjusting unit, where the second adjusting unit is configured to: Adjusting a power offset of the data channel according to an SIR target value of the data channel acquired by the acquiring unit and an SIR target value of the control channel, and the data is adjusted according to an adjustment amount of a power offset of the data channel The SIR target value of the channel is adjusted; the determining unit is specifically configured to:: according to the SIR target value of the control channel acquired by the acquiring unit, and the adjusted data channel adjusted by the first adjusting unit The SIR target value determines the SIR target value of the outer loop power control.

With reference to the second aspect, or any one of the foregoing implementation manners, in another implementation manner of the second aspect, the second adjusting unit is specifically configured to: when the SIR target value of the control channel is greater than When the SIR target value of the data channel is described, the power offset of the data channel is adjusted according to the difference between the SIR target value of the control channel and the SIR target value of the data channel.

With reference to the second aspect, or any one of the foregoing implementation manners, in another implementation manner of the second aspect, the second adjusting unit is specifically configured to: when reducing a power offset of the data channel And decreasing the SIR target value of the data channel plus the power offset of the data channel as the adjusted SIR target value of the data channel.

With reference to the second aspect, or any one of the foregoing implementation manners, in another implementation manner of the second aspect, the determining unit is specifically configured to: set an SIR target value of the control channel, and the data The larger of the SIR target values of the channel is determined as the SIR target value of the outer loop power control.

With reference to the second aspect, or any one of the foregoing implementation manners, in another implementation manner of the second aspect, the acquiring unit is specifically configured to: acquire the control channel according to a receiving quality of the control channel The SIR target value, and the SIR target value of the data channel is obtained according to the reception quality of the data channel.

With reference to the second aspect, or any one of the foregoing implementation manners, in another implementation manner of the second aspect, the control channel includes a high-speed dedicated physical control channel HS-DPCCH or Enhanced dedicated physical control channel E-DPCCH.

In the embodiment of the present invention, the network side device not only acquires the SIR target value of the data channel but also obtains the SIR target value of the control channel, and determines the SIR target value of the outer loop power control by using the SIR target value of the control channel and the SIR target value of the data channel. Effectively ensure the performance matching of the uplink control channel and the data channel, thereby improving the accuracy of the power control and reducing the uplink interference. DRAWINGS

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings to be used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description are only the present invention. For some embodiments, other drawings may be obtained from those of ordinary skill in the art without departing from the drawings.

1 is a schematic scene diagram of a network system in which an embodiment of the present invention may be implemented.

2 is a flow chart of an outer loop power control method according to an embodiment of the present invention.

FIG. 3 is a structural block diagram of a network side device according to an embodiment of the present invention.

4 is a structural block diagram of a network side device according to another embodiment of the present invention. detailed description

The technical solution of the present invention can be applied to various communication systems, for example: WiMAX (Worldwide Interoperability for Microwave Access), GSM (Global System of Mobile communication), CDMA (Code Division Multiple) Access, Code Division Multiple Access (), WCDMA (Wideband Code Division Multiple Access Wireless), UMTS (Universal Mobile Telecommunications System), GPRS (General Packet Radio Service) , LTE (Long Term Evolution, etc.).

The UE, which may also be called a mobile terminal, a mobile user equipment, or the like, may communicate with one or more core networks via a radio access network (for example, a RAN (Radio Access Network)). The user equipment can be a mobile terminal, such as a mobile phone (or "cellular" phone) and a computer with a mobile terminal, for example, a portable, pocket, handheld, computer built-in or in-vehicle mobile device that is wireless with The access network exchanges languages and/or data.

The base station may be a BTS (Base Transceiver Station, base station;) in GSM or CDMA, It may also be a base station (NodeB) in WCDMA, an eNB in an LTE or an eNodeB (evolved Node B), and so on.

The base station controller may be a BSC (Base Station Controller) in GSM or CDMA, or may be an RNC (Radio Network Controller) in WCDMA, or may be combined in NB or e-LTE. NodeB, and so on.

For convenience of description, the following embodiments are described by taking a WCDMA system as an example. It should be understood that embodiments of the present invention are not limited thereto and may be other mobile communication systems than WCDMA systems.

1 is a schematic scene diagram of a network system in which an embodiment of the present invention may be implemented. Depicted in Figure 1 is a schematic scene diagram of a macro-hybrid networking in a cellular network. The general cellular network is continuously covered by the macro cell. In order to improve the cell edge coverage or the throughput rate of the hotspot area, the micro cell is introduced, and the micro cell covers only a small area, and the macro cell can be used to improve the user coverage of the macro cell. And the goal of absorbing traffic in hotspots.

When the macro cell and the micro cell are covered by the same frequency, the transmission powers of the macro base station and the micro base station are very different, for example, the phase difference can be greater than 10 dB, but their uplink reception quality is similar. This has the problem of different coverage of the uplink and downlink, that is, the uplink coverage of the micro base station is larger than the downlink coverage of the micro base station.

In the scenario of FIG. 1, the primary serving cell of the UE 103 is the macro base station 101, and one non-primary serving cell in the uplink active set is the micro base station 102, which is in the uplink and downlink unbalanced area. At this time, the signal quality of the UE 103 receiving the macro base station 101 is better than the signal quality of the UE 103 receiving the micro base station 102, and the uplink receiving signal of the micro base station 102 is better than that of the macro base station 101, and based on the data of the data channel in the uplink active set. It is commonly received by a primary serving cell (e.g., macro base station 101) and a secondary serving cell (e.g., micro base station 102). For example, in order to reduce the strong interference formed by the primary serving cell to the UE of the macro base station 101 to the UE whose primary serving cell is the micro base station 102, the uplink E-DCH channel, including E-DPCCH (Evolved-DPCCH, Enhanced DPCCH) and E- DPDCH (Evolved-DPDCH, Enhanced DPDCH) enters the soft handoff area in advance and enjoys the gain brought by soft handoff.

However, since the primary serving cell is still a macro base station, the data of some uplink control channels is only received by the macro base station, such as the uplink feedback channel HS-DPCCH of HSDPA (High Speed Downlink Packet Access). Therefore, adjusting the SIR target value (SIR target) of the outer loop power control based on the reception quality of the data channel (such as E-DPDCH in FIG. 1) cannot guarantee the uplink control channel (such as HS-DPCCH) received only by the primary serving cell. Performance. If the performance of the uplink control channel (such as HS-DPCCH) and the data channel is not compensated by setting a fixed higher power offset The matching problem usually leads to excessive power redundancy of the uplink control channel or the data channel, and causes interference to the uplink received signal of the UE of the micro base station.

In order to solve the above problem, an embodiment of the present invention provides an outer loop power control method and device, which not only adjusts the SIR target value of the outer loop power control based on the reception quality of the data channel, but also adjusts the outer loop based on the reception quality of the control channel. The SIR target value of the power control effectively ensures the performance matching (balance) of the uplink control channel and the data channel, thereby improving the accuracy of the power control and reducing the uplink interference.

It is to be noted that the network system of FIG. 1 is only for the purpose of more clearly describing the embodiments of the present invention, and is not intended to limit the scope of application of the embodiments of the present invention. For example, a macro base station 101, a base station 102, and a UE 103 are depicted in FIG. 1, but embodiments of the present invention may also include a greater number of base stations, or may also include a greater number of UEs. In addition to the above macro base station and micro base station, the base station may be other types of base stations, such as a pico base station, a femto base station, a relay station, and the like. The E-DPDCH channel and the uplink HS-DPCCH channel and the like in Fig. 1 are merely exemplary, and the embodiment of the present invention is not limited thereto. In addition, in the network system of FIG. 1 , the uplink and downlink unbalanced areas are exemplified by the soft handoff area of the macro and micro hybrid network. It should be understood that the embodiment of the present invention is not limited thereto, and may also be applied to uplink and downlink of other network systems. Unbalanced area.

2 is a flow chart of an outer loop power control method according to an embodiment of the present invention. The method of Figure 2 is performed by a network side device such as a base station or base station controller.

201. Acquire an SIR target value of the control channel and an SIR target value of the data channel.

202. Determine an SIR target value of the outer loop power according to the SIR target value of the control channel and the SIR target value of the data channel.

In the embodiment of the present invention, the network side device not only acquires the SIR target value of the data channel but also obtains the SIR target value of the control channel, and determines the SIR target value of the outer loop power control by using the SIR target value of the control channel and the SIR target value of the data channel. Effectively ensure the performance matching of the uplink control channel and the data channel, thereby improving the accuracy of the power control and reducing the uplink interference.

It should be noted that, in the embodiment of the present invention, the SIR target value of the control channel refers to the quality of the control channel specified under the power offset PO (Power Offset) of the current relative DPCCH. The required DPCCH SIR target value (including missed detection probability, false alarm probability, block error rate, bit error rate). Similarly, the SIR target value of the data channel refers to the DPCCH SIR target value required to ensure the quality requirement specified by the data channel (including the block error rate, the vouch rate) at the current PO relative to the DPCCH. In addition to the networking scenario, the SIR target value of the control channel of the cell and the SIR target value of the data channel are obtained, for example, by the network side device, according to the SIR target value and the data channel of the control channel. The SIR target value determines the SIR target value of the outer loop power control. In this way, the control channel and the data channel power offset setting can be adaptively adjusted, which is beneficial to reducing power redundancy and reducing uplink interference. The embodiment of the present invention will be described in the context of networking. It should be understood that the application scenario of the embodiment of the present invention is not limited. Optionally, in the scenario of the macro-mesh network, the data of the control channel is received by the primary serving cell in the macro-mesh network, and the data of the data channel is jointly received by the primary and secondary serving cells in the macro-micro-network.

Optionally, as an embodiment, in step 201, the SIR target value of the control channel may be obtained according to the receiving quality of the control channel (such as the HS-DPCCH channel), and the SIR target value of the data channel is obtained according to the receiving quality of the data channel. . For convenience of description, the following data channel is described by taking the E-DPDCH as an example, and it should be understood that the present invention is not limited thereto.

Specifically, the base station or the base station controller of the primary serving cell may maintain an SIR target value of an uplink HS-DPCCH channel according to the receiving quality of the uplink HS-DPCCH channel, and further, may also adopt an uplink CQI (Channel Quality Indicator). The correct reception ratio of the uplink HS-DPCCH channel is adjusted for the SIR target value. Or, according to the power offset of the other control channel (for example, HS-DPCCH or E-DPCCH) relative to the DPCCH, directly map the reception quality requirement of the HS-DPCCH or the E-DPCCH to the reception quality of the DPCCH, according to the DPCCH reception quality ( For example, the BER of the DPCCH specific domain adjusts the SIR target value to ensure the reception quality of the HS-DPCCH or E-DPCCH under the PO. The base station or RNC of the primary serving cell can maintain the SIR target value of a data channel based on the reception quality of the data channel within the uplink active set.

Optionally, as an embodiment, in step 202, a larger one of an SIR target value of the control channel and an SIR target value of the data channel may be determined as an SIR target value of the outer loop power control.

Optionally, as another embodiment, before step 202, the PO of the channel may be adjusted according to the SIR target value of the control channel and the SIR target value of the data channel, that is, the dual outer ring SIR target value based on the control channel and the data channel. The PO adaptive adjustment adjusts the target SIR target value of the corresponding channel by the adjustment amount of the PO of the channel.

Optionally, the PO of the control channel may be adjusted according to the SIR target value of the control channel and the SIR target value of the data channel, and the SIR target value of the control channel is adjusted according to the adjustment amount of the PO of the control channel. Line adjustment. Specifically, when the SIR target value of the data channel is greater than the SIR target value of the control channel, the PO of the control channel is adjusted according to the difference between the SIR target value of the data channel and the SIR target value of the control channel. For example, when the difference between the SIR target values of the E-DPDCH and the HS-DPCCH reaches a certain quantization threshold, the PO of the HS-DPCCH is adjusted after a certain time interval, for example, the PO of the HS-DPCCH can be lowered according to the difference, according to The adjustment amount of PO of HS-DPCCH adjusts the SIR target value of HS-DPCCH accordingly. For example, the value obtained by adding the original SIR target value plus the adjustment amount is taken as the SIR target value of the adjusted HS-DPCCH. The larger of the SIR target value of the E-DPDCH and the adjusted SIR target value of the HS-DPCCH may be determined as the SIR target value of the outer loop power control. Therefore, the correct detection of the HS-DPCCH channel is effectively ensured, and the uplink interference is reduced.

Optionally, the PO of the data channel may be adjusted according to the SIR target value of the data channel and the SIR target value of the control channel, and the SIR target value of the data channel is adjusted according to the adjustment amount of the PO of the data channel. Specifically, when the SIR target value of the control channel is greater than the SIR target value of the data channel, the PO of the data channel is adjusted according to the difference between the SIR target value of the control channel and the SIR target value of the data channel. For example, the PO of the data channel may be decreased according to the difference, and the SIR target value of the data channel may be adjusted according to the adjustment amount of the PO of the data channel, for example, the value obtained by adding the original SIR target value plus the adjustment amount is used as the adjusted data channel. The SIR target value. The larger of the SIR target value of the HS-DPCCH and the adjusted SIR target value of the E-DPDCH may be determined as the SIR target value of the outer loop power control. Therefore, the data of the data channel is effectively detected, and the UE's transmit power in the data channel is prevented from being too high, and the uplink interference is reduced.

Specifically, in the scenario of FIG. 1, the primary serving cell uses the macro base station 101 and the secondary serving cell as the micro base station 102, and the SIR target value of the HS-DPCCH of the macro base station 101 is a, and the SIR of the E-DPDCH of the micro base station 102. The target value is b, and the determined SIR target value c of the outer loop power control can be selected as the larger value of a and b. Assuming a>b, then c=a. At this point, the SIR target value of the outer loop power control is too large. Alternatively, if (c-b) dB is greater than the quantization threshold of the PO of the E-DPDCH, then

The PO of the E-DPDCH is reduced by several orders (set to xdB, where X is less than or equal to (cb) dB), and the SIR target value of the E-DPDCH is adjusted according to the adjustment amount, that is, the reduced magnitude X. If the adjusted target value of the adjusted E-DPDCH is b+x, then the SIR target value of the final outer loop power control should be a large value in a and b+x. Conversely, if b>a, the transmission power of the HS-DPCCH is redundant. If the (c-a) dB is greater than the PO quantization threshold of the HS-DPCCH, it can be reduced.

Several magnitudes of HS-DPCCH (set to y ( dB ) , where y ( dB ) is less than or equal to (cb ) dB ), adjust the SIR of the HS-DPCCH according to the adjustment amount, ie the reduced magnitude y aims Value, such as the adjusted SIR target value of HS-DPCCH is a+y, then the final target value of the outer loop power control should be the larger value of a+y and b.

It should be understood that, in the foregoing example, the primary serving cell is a macro base station and the secondary serving cell is a micro base station. Of course, the primary serving cell may be a macro base station and the secondary serving cell is a micro base station, which is not limited in this embodiment of the present invention.

Through the above solution, the performance matching of the uplink control channel and the data channel is effectively ensured, thereby improving the accuracy of the power control and reducing the uplink interference.

FIG. 3 is a structural block diagram of a network side device according to an embodiment of the present invention. The network side device 300 includes an obtaining unit 301 and a determining unit 302.

The obtaining unit 301 is configured to acquire an SIR target value of the control channel and an SIR target value of the data channel.

The determining unit 302 is configured to determine an SIR target value of the outer loop power control according to the SIR target value of the control channel acquired by the obtaining unit 301 and the SIR target value of the data channel.

It should be noted that, in the embodiment of the present invention, the SIR target value of the control channel refers to the quality requirement specified by the control channel under the current relative DPCCH PO (including the probability of missed detection, false alarm probability). , block error rate, bit error rate) required DPCCH SIR target value. Similarly, the SIR target value of the data channel refers to the DPCCH SIR target value required to ensure the quality requirements specified for the data channel (including the block error rate, the vouch rate) at the current PO relative to the DPCCH.

The network side device 300 can implement the various steps in the method of FIG. 2, and is not described in detail to avoid repetition.

Optionally, as an embodiment, the network side device 300 may further include a first adjusting unit 303. The first adjusting unit 303 is configured to adjust, according to the SIR target value of the control channel acquired by the acquiring unit 301 and the SIR target value of the data channel, the power offset of the control channel, and the SIR target of the control channel according to the adjustment amount of the power offset of the control channel. The value is adjusted. The determining unit 302 is specifically configured to: determine an SIR target value of the outer loop power control according to the SIR target value of the data channel acquired by the obtaining unit 301 and the SIR target value of the adjusted control channel adjusted by the first adjusting unit 303. Further, the first adjusting unit 303 is specifically configured to: when the SIR target value of the data channel is greater than the SIR target value of the control channel, adjust the power of the control channel according to the difference between the SIR target value of the data channel and the SIR target value of the control channel. Offset.

Optionally, the first adjusting unit 303 is specifically configured to: when reducing the power offset of the control channel, use the SIR target value of the control channel plus the power offset of the control channel as the SIR of the adjusted control channel. Target value.

Therefore, the correct detection of the HS-DPCCH channel is effectively ensured, and the uplink interference is reduced.

Optionally, as another embodiment, the network side device 300 may further include a second adjusting unit 304. The second adjusting unit 304 is configured to adjust, according to the SIR target value of the data channel acquired by the obtaining unit 301 and the SIR target value of the control channel, the power offset of the data channel, and the SIR of the data channel according to the adjustment amount of the power offset of the data channel. The target value is adjusted. The determining unit 302 is specifically configured to: determine an SIR target value of the outer loop power control according to the SIR target value of the control channel acquired by the obtaining unit 301 and the SIR target value of the adjusted data channel adjusted by the second adjusting unit 304.

Further, the second adjusting unit 304 is specifically configured to: when the SIR target value of the control channel is greater than the SIR target value of the data channel, adjust the power of the data channel according to the difference between the SIR target value of the control channel and the SIR target value of the data channel. Offset.

Optionally, the second adjusting unit 304 is specifically configured to: when reducing the power offset of the data channel, use the SIR target value of the data channel plus the power offset of the data channel as the adjusted data channel. The SIR target value.

Therefore, the data of the data channel is effectively detected correctly, and the uplink power of the UE on the data channel is prevented from being too high, and the uplink interference is reduced.

Optionally, as another embodiment, the determining unit 302 is specifically configured to: determine a larger one of an SIR target value of the control channel and an SIR target value of the data channel as an SIR target value of the outer loop power control.

Optionally, as another embodiment, the acquiring unit 301 is specifically configured to: obtain an SIR target value of the control channel according to a receiving quality of the control channel, and obtain an SIR target value of the data channel according to the receiving quality of the data channel.

Optionally, as another embodiment, the control channel may include a high speed dedicated physical control channel HS-DPCCH, or the data channel includes an E-DPDCH. Example. Figure 4 shows an embodiment of a network side device, in this embodiment, the device 400 package A processor 401, a memory 402, a transmitter 403 and a receiver 404 are included. The processor 401 controls the operation of the device 400, which may also be referred to as a CPU (Central Processing Unit). Memory 402 can include read only memory and random access memory and provides instructions and data to processor 401. A portion of memory 402 may also include non-volatile line random access memory (NVRAM). The processor 401, the memory 402, the transmitter 403 and the receiver 404 are coupled together by a bus system 410, wherein the bus system 410 includes a power bus, a control bus, and a status signal bus in addition to the data bus. However, for clarity of description, various buses are labeled as bus system 410 in the figure.

The above-described device 400 can be applied to the method disclosed in the above embodiments of the present invention. The processor 401 may be an integrated circuit chip with signal processing capability. In the implementation process, each step of the above method may be completed by an integrated logic circuit of hardware in the processor 401 or an instruction in the form of software. The processor 401 may be a general-purpose processor, including a CPU, a network processor (NP), and the like; or may be a digital signal processor (DSP) or an application specific integrated circuit (Application Specific Integrated Circuit). ASIC), Field Programmable Gate Array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component. The methods, steps, and logic blocks disclosed in the embodiments of the present invention may be implemented or executed. The general purpose processor may be a microprocessor or the processor or any conventional processor or the like.

The processor 401 is configured to acquire an SIR target value of the control channel and an SIR target value of the data channel. The processor 401 is configured to determine an SIR target value of the outer loop power control according to the acquired SIR target value of the control channel and the SIR target value of the data channel.

The network side device 400 can implement the various steps in the method of FIG. 2, and is not described in detail to avoid repetition.

Optionally, as an embodiment, the processor 401 is further configured to: adjust, according to the acquired SIR target value of the control channel and the SIR target value of the data channel, the power offset of the control channel, according to the power offset adjustment of the control channel. The amount adjusts the SIR target value of the control channel. The processor 401 is specifically configured to: according to the SIR target value of the acquired data channel and the SIR target of the adjusted control channel The target value determines the SIR target value of the outer loop power control.

Further, the processor 401 is specifically configured to: when the SIR target value of the data channel is greater than the SIR target value of the control channel, adjust the power offset of the control channel according to the difference between the SIR target value of the data channel and the SIR target value of the control channel. .

Optionally, the processor 401 is specifically configured to: when reducing the power offset of the control channel, use the SIR target value of the control channel plus the power offset of the control channel as the SIR target value of the adjusted control channel. .

Optionally, in another embodiment, the processor 401 is further configured to: adjust, according to the SIR target value of the acquired data channel and the SIR target value of the control channel, the power offset of the data channel, according to the power offset of the data channel. The adjustment adjusts the SIR target value of the data channel. The processor 401 is specifically configured to: determine an SIR target value of the outer loop power control according to the acquired SIR target value of the control channel and the SIR target value of the adjusted data channel.

Further, the processor 401 is specifically configured to: when the SIR target value of the control channel is greater than the SIR target value of the data channel, adjust the power offset of the data channel according to the difference between the SIR target value of the control channel and the SIR target value of the data channel. .

Optionally, the processor 401 is specifically configured to: when reducing the power offset of the data channel, use the SIR target value of the data channel plus the power offset of the data channel as the adjusted SIR of the data channel. Target value.

Optionally, as another embodiment, the processor 401 is specifically configured to: determine a larger one of an SIR target value of the control channel and an SIR target value of the data channel as an SIR target value of the outer loop power control.

Optionally, in another embodiment, the processor 401 is specifically configured to: obtain an SIR target value of the control channel according to the receiving quality of the control channel, and obtain an SIR target value of the data channel according to the receiving quality of the data channel.

Optionally, as another embodiment, the control channel may include a high speed dedicated physical control channel HS-DPCCH, or the data channel includes an E-DPDCH.

Those of ordinary skill in the art will appreciate that the elements and algorithm steps of the various examples described in connection with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the technical solution. Apply application and design constraints. A person skilled in the art can use different methods to implement the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the present invention.

It will be apparent to those skilled in the art that, for the convenience of the description and the cleaning process, the specific operation of the system, the device and the unit described above may be referred to the corresponding processes in the foregoing method embodiments, and details are not described herein again.

In the several embodiments provided herein, it should be understood that the disclosed systems, devices, and methods may be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the unit is only a logical function division. In actual implementation, there may be another division manner, for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be electrical, mechanical or otherwise.

The units described as separate components may or may not be physically separate, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solution of the embodiment.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

The functions, if implemented in the form of software functional units and sold or used as separate products, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention, which is essential to the prior art or part of the technical solution, may be embodied in the form of a software product stored in a storage medium, including The instructions are used to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention. The foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and the like, which can store program codes. .

The above is only the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention. It should be covered by the scope of the present invention. Therefore, the protection of the present invention The scope should be stated in the scope of the claims.

Claims

Rights request

1. An outer loop power control method, characterized by including:

Obtain the signal-to-interference ratio SIR target value of the control channel and the SIR target value of the data channel; determine the SIR target value of the outer loop power control according to the SIR target value of the control channel and the SIR target value of the data channel.

2. The method of claim 1, wherein the method further includes: adjusting the power offset of the control channel according to the SIR target value of the control channel and the SIR target value of the data channel;

Adjust the SIR target value of the control channel according to the adjustment amount of the power offset of the control channel;

Determining the SIR target value of the outer loop power control based on the SIR target value of the control channel and the SIR target value of the data channel includes:

The SIR target value of the outer loop power control is determined according to the SIR target value of the data channel and the adjusted SIR target value of the control channel.

3. The method of claim 2, wherein the adjusting the power offset of the control channel according to the SIR target value of the control channel and the SIR target value of the data channel includes:

When the SIR target value of the data channel is greater than the SIR target value of the control channel, the power offset of the control channel is adjusted according to the difference between the SIR target value of the data channel and the SIR target value of the control channel. .

4. The method according to claim 2 or 3, wherein the adjusting the SIR target value of the control channel according to the adjustment amount of the power offset of the control channel includes: when reducing the When controlling the power offset of the control channel, the SIR target value of the control channel plus the reduction amount of the power offset of the control channel is used as the adjusted SIR target value of the control channel.

5. The method of claim 1, wherein before determining the SIR target value of the outer loop power control based on the SIR target value of the control channel and the SIR target value of the data channel, the method Also includes:

Adjust the power offset of the data channel according to the SIR target value of the data channel and the SIR target value of the control channel; Adjust the SIR target value of the data channel according to the adjustment amount of the power offset of the data channel;

The SIR target value of the outer loop power control is determined according to the SIR target value of the control channel and the adjusted SIR target value of the data channel.

6. The method of claim 5, wherein adjusting the power offset of the data channel according to the SIR target value of the data channel and the SIR target value of the control channel includes:

When the SIR target value of the control channel is greater than the SIR target value of the data channel, the power offset of the data channel is adjusted according to the difference between the SIR target value of the control channel and the SIR target value of the data channel. .

7. The method according to claim 5 or 6, wherein the adjusting the SIR target value of the data channel according to the adjustment amount of the power offset of the data channel includes: when reducing the When the power offset of the data channel is performed, the SIR target value of the data channel plus the reduction amount of the power offset of the data channel is used as the adjusted SIR target value of the data channel.

8. The method according to any one of claims 1 to 7, wherein the SIR target value of the outer loop power control is determined based on the SIR target value of the control channel and the SIR target value of the data channel, include:

The larger value of the SIR target value of the control channel and the SIR target value of the data channel is determined as the SIR target value of the outer loop power control.

9. The method according to any one of claims 1 to 8, wherein the obtaining the signal-to-interference ratio SIR target value of the control channel and the SIR target value of the data channel includes:

The SIR target value of the control channel is obtained according to the reception quality of the control channel, and the SIR target value of the data channel is obtained according to the reception quality of the data channel.

10. The method according to any one of claims 1 to 9, wherein the control channel includes a high-speed dedicated physical control channel HS-DPCCH, or the data channel includes an enhanced dedicated physical data channel E-DPDCH.

11. The method according to any one of claims 1 to 10, characterized in that: the data of the control channel is received by the main serving cell in the macro-micro network, and the data of the data channel is received by the macro-micro network. net The primary and secondary service cells in the system receive it together.

12. A network side device, characterized by including:

The acquisition unit is used to acquire the signal-to-interference ratio SIR target value of the control channel and the SIR target value of the data channel;

Determining unit, configured to determine the SIR target value of the outer loop power control according to the SIR target value of the control channel and the SIR target value of the data channel obtained by the acquisition unit.

13. The network side device according to claim 12, characterized in that, the network side device further includes a first adjustment unit,

The first adjustment unit is configured to adjust the power offset of the control channel according to the SIR target value of the control channel and the SIR target value of the data channel obtained by the acquisition unit. The offset adjustment amount adjusts the SIR target value of the control channel; the determination unit is specifically configured to: obtain the SIR target value of the data channel according to the sum obtained by the acquisition unit and adjusted by the first adjustment unit The adjusted SIR target value of the control channel determines the SIR target value of the outer loop power control.

14. The network side device according to claim 13, characterized in that,

The first adjustment unit is specifically configured to: when the SIR target value of the data channel is greater than the SIR target value of the control channel, according to the difference between the SIR target value of the data channel and the SIR target value of the control channel The value adjusts the power offset of the control channel.

15. The network side device according to claim 13 or 14, characterized in that,

The first adjustment unit is specifically configured to: when reducing the power offset of the control channel, add the SIR target value of the control channel to the reduction amount of the power offset of the control channel as the adjusted The SIR target value of the control channel.

16. The network side device according to claim 12, characterized in that, the network side device further includes a second adjustment unit,

The second adjustment unit is configured to adjust the power offset of the data channel according to the SIR target value of the data channel and the SIR target value of the control channel obtained by the acquisition unit. The offset adjustment amount adjusts the SIR target value of the data channel; the determination unit is specifically configured to: obtain the SIR target value of the control channel according to the sum obtained by the acquisition unit and adjusted by the first adjustment unit The adjusted SIR target value of the data channel determines the SIR target value of the outer loop power control.

17. The network side device according to claim 16, characterized in that, The second adjustment unit is specifically configured to: when the SIR target value of the control channel is greater than the SIR target value of the data channel, according to the difference between the SIR target value of the control channel and the SIR target value of the data channel value adjusts the power offset of the data channel.

18. The network side device according to claim 16 or 17, characterized in that,

The second adjustment unit is specifically configured to: when reducing the power offset of the data channel, add the reduction amount of the power offset of the data channel to the SIR target value of the data channel as the adjusted result. The SIR target value of the data channel.

19. The network side device according to any one of claims 12 to 18, characterized in that the determining unit is specifically configured to: determine the SIR target value of the control channel and the SIR target value of the data channel. The larger value is determined as the SIR target value of the outer loop power control.

20. The network side device according to any one of claims 12 to 19, characterized in that the obtaining unit is specifically configured to: obtain the SIR target value of the control channel according to the reception quality of the control channel, and obtain the SIR target value of the control channel according to the reception quality of the control channel. The reception quality of the data channel obtains the SIR target value of the data channel.

21. The network side device according to any one of claims 12 to 20, wherein the control channel includes a high-speed dedicated physical control channel HS-DPCCH, or the data channel includes an enhanced dedicated physical data channel E- DPDCH.