WO2018000679A1

WO2018000679A1 - Power control method and device based on signal quality

Info

Publication number: WO2018000679A1
Application number: PCT/CN2016/104377
Authority: WO
Inventors: 欧凯军; 张加钦
Original assignee: 中兴通讯股份有限公司
Priority date: 2016-06-29
Filing date: 2016-11-02
Publication date: 2018-01-04
Also published as: CN107548138A

Abstract

Provided are a power control method and device based on signal quality. In the present invention, the method comprises: acquiring the transmitting power utilization ratio of a cell and the high speed downlink packet access (HSDPA) channel total power ratio of the cell; and according to a comparison result between the transmitting power utilization ratio of the cell and a first threshold value, and a comparison result between the HSDPA channel total power ratio and a second threshold value, determining whether the cell enters a power limited state. The present invention solves the problem that cell throughput rate decreases due to the fact that the relevant technique cannot judge whether the transmitting power of an A-DPCH of an HSDPA user consumes too many downlink power loads and thus results in an excessive non-H power, cannot determine whether the power of an HSDPA scheduler is insufficient, and cannot adopt corresponding power limiting measures according to the above-mentioned determination results, thereby achieving the technical effect of preventing the cell throughput rate from decreasing.

Description

Signal quality based power control method and device

Technical field

The present invention relates to the field of communications, and in particular to a power quality control method and apparatus based on signal quality.

Background technique

In order to carry the High Speed Downlink Packet Access (HSDPA) service, not only the High-Speed Physical Downlink Shared Channel (HS-PDSCH) but also the High-Speed Shared Control Channel (High-) Speed Shared Control Channel (referred to as HS-SCCH), High-Speed Dedicated Physical Control Channel (HS-DPCCH) channel, and associated physical channel (Associated Dedicated Physical Channel, A for short) -DPCH), the channel is a Dedicated Physical Channel (DPCH) in R99. A-DPCH is required for HSDPA services, for transmitting Radio Resource Control (RRC) signaling or concurrent service data (such as CS12.2k voice), and downlink dedicated physical channel (Downlink Dedicated) The Physical Channel (referred to as DL-DPCH) can assist the power control of the HS-SCCH channel, and the Uplink Dedicated Physical Channel (UL-DPCH) can assist the power control of the HS-DPCCH channel.

The 3GPP protocol stipulates that each HSDPA user needs to allocate a downlink coding channel with a spreading factor (SF) to α to carry the A-DPCH, wherein α can select 32 according to the accompanying service. 64, 128 or 256. When the number of users is large, the A-DPCH channel of the HSDPA user consumes excessive downlink power load, resulting in high speed packet access (HSPA) power (which can be simply referred to as non-H power) (R99 power). high. Since the total power of the cell is fixed, its value is equal to H power and The sum of non-H powers, where H power is the sum of HSDPA power and High Speed Uplink Packet Access (HSUPA) power. When the non-H power is too high, the H power is insufficient, so that the HSDPA scheduler selects a smaller data block for scheduling or not scheduling due to insufficient power during scheduling, resulting in a decrease in HSDPA cell throughput. At the same time, excessive non-H power will also result in limited system capacity, making new users unable to access.

In the related art, since the different states of the cell in which the user is located are not distinguished according to the relevant parameters, it is impossible to determine whether the power of the HSDPA of the cell is insufficient according to different states of the cell, and then the HSDPA power of the cell is limited, and further, the related technology cannot It is determined whether the A-DPCH of the HSDPA user consumes excessive downlink power load, causing the non-H power to be too high, and it is impossible to determine whether the power of the HSDPA scheduler is insufficient, and then the corresponding power limitation measure cannot be taken according to the above judgment, thereby causing the cell throughput. The rate drops.

In view of the above problems, an effective solution has not been proposed in the related art.

Summary of the invention

The embodiment of the present invention provides a power quality control method and apparatus based on signal quality, so as to at least solve the problem that the HSDPA of the cell cannot be determined according to different states of the cell because the different states of the cell where the user is located are not distinguished according to relevant parameters. Whether the power is insufficient, and then the HSDPA power of the cell is limited and the corresponding power limitation measures cannot be taken according to the judgment situation, resulting in a decrease in the cell throughput rate.

According to an embodiment of the present invention, a signal quality-based power control method is provided, including: acquiring a transmit power utilization ratio of a cell and a high-speed downlink packet access HSDPA channel total power ratio of the cell; Determining whether the cell enters a power limited state, and the power is limited, by comparing a result of the comparison of the transmit power utilization with a first threshold, and a comparison of the total power ratio of the HSDPA channel with a second threshold. The status is used to indicate the maximum transmit power of the A-DPCH that limits the HSDPA users within the cell.

Optionally, determining, according to the transmit power utilization ratio of the cell and the total power of the HSDPA channel of the cell, determining whether the cell enters the power limited state, where And determining that the cell enters the power limited state when it is determined that the transmit power utilization is greater than the first threshold and the total HSDPA channel power ratio is less than the second threshold.

Optionally, after determining that the cell enters the power limited state, the method further includes: determining that the cell exits the power limited state when one of the following conditions is met: the transmit power utilization rate Less than a third threshold; the total power consumption ratio of the HSDPA channel is greater than a fourth threshold; the transmission power utilization is less than a third threshold, and the total power ratio of the HSDPA channel is greater than a fourth threshold; wherein the third threshold Less than the first threshold, the fourth threshold is greater than the second threshold.

Optionally, the first threshold is down-regulated by the first threshold to obtain the third threshold; and the fourth threshold is raised by a second specified value to obtain the second threshold.

Optionally, after determining that the cell enters the power limited state, the method further includes: querying, in a cell entering the power limited state, the HSDPA user entering an A-DPCH power limitation state, where The A-DPCH transmit power of the HSDPA user is greater than a preset power threshold; and the maximum transmit power of the A-DPCH of the HSDPA user is limited.

Optionally, the method further includes: when determining that the A-DPCH transmit power of the HSDPA user is less than the preset power threshold and the HSDPA user is in the A-DPCH power limit state When the preset time value is greater than, the HSDPA user is determined to exit the A-DPCH power limitation state.

Optionally, determining that the cell exits the power limited state comprises: determining that all HSDPA users in the cell exit the A-DPCH power limitation state.

Optionally, the transmit power utilization ratio is a ratio of a transmit power of the cell to a maximum transmit power of the cell, where the total channel power ratio is a total power of the high speed downlink packet access HSDPA channel of the cell. The ratio of the maximum transmit power of the configured cell.

According to another embodiment of the present invention, a signal quality-based power control apparatus is provided, including: an obtaining module, configured to acquire a transmission power utilization rate of a cell, and a total high-speed downlink packet access HSDPA channel power of the cell. a first determining module, configured to compare a result of the transmission power utilization of the cell with a first threshold, and the HSDPA And determining, by the comparison of the total channel power ratio and the second threshold, whether the cell enters a power limited state, where the power limited state is used to indicate that the maximum transmission of the A-DPCH of the HSDPA user in the cell is restricted. power.

Optionally, the first determining module is further configured to: when determining that the transmit power utilization is greater than the first threshold and the total HSDPA channel power ratio is less than the second threshold, determining that the cell enters The power limited state.

Optionally, the second determining module is configured to determine that the cell exits the power limited state when one of the following conditions is met: the transmit power utilization is less than a third threshold; and the total power ratio of the HSDPA channel is The fourth threshold is greater than the third threshold; the total power consumption ratio of the HSDPA channel is greater than a fourth threshold; wherein the third threshold is smaller than the first threshold, and the fourth threshold is greater than The second threshold

Optionally, the apparatus further includes: a querying module, configured to query, in a cell that enters the power-restricted state, the HSDPA user that enters an A-DPCH power limitation state, where the A-DPCH of the HSDPA user The transmit power is greater than a preset power threshold; and the processing module limits the maximum transmit power of the A-DPCH of the HSDPA user.

Optionally, the device further includes: a third determining module, configured to: when determining that the A-DPCH transmit power of the HSDPA user is less than the preset power threshold, and the HSDPA user is in the A When the time of the DPCH power limitation state is greater than the preset time value, it is determined that the HSDPA user exits the A-DPCH power limitation state.

According to still another embodiment of the present invention, a storage medium is also provided. The storage medium is configured to store program code for performing: obtaining a transmission power utilization ratio of a cell and a high-speed downlink packet access HSDPA channel total power ratio of the cell; and using the transmission power utilization rate of the cell Determining whether the cell enters a power limited state, and the power limited state is used to indicate that the limitation is the result of the comparison with the first threshold, and the comparison between the total power consumption ratio of the HSDPA channel and the second threshold The maximum transmit power of the A-DPCH of HSDPA users in the cell.

Optionally, the storage medium is further configured to store program code for performing the following steps: And determining that the cell enters the power limited state when the transmit power utilization is greater than the first threshold and the total HSDPA channel power ratio is less than the second threshold.

Optionally, the storage medium is further configured to store program code for performing the following steps: determining that the cell exits the power limited state when one of the following conditions is met: the transmit power utilization is less than a third threshold; The total power consumption ratio of the HSDPA channel is greater than a fourth threshold; the transmit power utilization is less than a third threshold, and the total power of the HSDPA channel is greater than a fourth threshold; wherein the third threshold is smaller than the first a threshold, the fourth threshold being greater than the second threshold.

Optionally, the storage medium is further configured to store program code for performing the step of querying the HSDPA user entering the A-DPCH power limit state in a cell entering the power limited state, wherein the HSDPA user The A-DPCH transmit power is greater than a preset power threshold; the maximum transmit power of the A-DPCH of the HSDPA user is limited.

Optionally, the storage medium is further configured to store program code for performing: determining that the A-DPCH transmit power of the HSDPA user is less than the preset power threshold and the HSDPA user is in the When the time of the A-DPCH power limitation state is greater than the preset time value, it is determined that the HSDPA user exits the A-DPCH power limitation state.

Optionally, the storage medium is further configured to store program code for performing the step of determining that all HSDPA users in the cell exit the A-DPCH power limit state.

According to the present invention, according to the comparison between the transmission power utilization ratio of the cell and the total power of the HSDPA channel of the cell and the first threshold and the second threshold, it is determined whether the cell enters the power limited state, and the cell is implemented according to the relevant parameters of the cell. Differentiating the state and determining whether the power of the HSDPA of the cell is insufficient according to different states of the cell, and then determining whether to indicate the maximum transmit power of the A-DPCH of the HSDPA user in the restricted cell, which can solve the problem that the related technology cannot determine the A-DPCH of the HSDPA user. Whether the transmit power consumes too much downlink power load causes the non-H power to be too high, whether the power of the HSDPA scheduler is insufficient, and the corresponding power limitation measures cannot be taken according to the above judgment situation, resulting in a problem that the cell throughput rate decreases, according to the correlation. The parameter distinguishes different states of the cell in which the user is located, and determines the cell according to different states of the cell. Whether the power of the HSDPA is insufficient or not provides a basis for adopting corresponding power limiting measures to limit the downlink power load of the A-DPCH of the HSDPA user, alleviating the technical limitation of the HSDPA power limitation and preventing the decrease of the cell throughput rate.

DRAWINGS

The drawings described herein are intended to provide a further understanding of the invention, and are intended to be a part of the invention. In the drawing:

1 is a block diagram showing the hardware structure of a base station based on a signal quality-based power control method according to an embodiment of the present invention;

2 is a flow chart of signal quality based power control in accordance with an embodiment of the present invention;

3 is a flow diagram of signal quality based power control in accordance with an alternate embodiment of the present invention;

4 is a timing relationship diagram (1) of cell state monitoring and HSDPA user power processing according to Embodiment 2 of the present invention;

5 is a timing relationship diagram (C) of cell state monitoring and HSDPA user power processing according to Embodiment 2 of the present invention;

6 is a structural block diagram of a signal quality based power control apparatus according to an embodiment of the present invention;

7 is a structural block diagram (1) of a signal quality based power control apparatus according to an alternative embodiment of the present invention;

8 is a structural block diagram (2) of a signal quality based power control apparatus according to an alternative embodiment of the present invention;

9 is a structural block diagram (3) of a signal quality based power control apparatus in accordance with an alternative embodiment of the present invention.

detailed description

The invention will be described in detail below with reference to the drawings in conjunction with the embodiments. It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict.

It is to be understood that the terms "first", "second" and the like in the specification and claims of the present invention are used to distinguish similar objects, and are not necessarily used to describe a particular order or order.

Example 1

The method embodiment provided in Embodiment 1 of the present application can be executed in a mobile terminal, a computer terminal or the like. Taking the operation on the base station as an example, FIG. 1 is a hardware structural block diagram of a base station based on a signal quality-based power control method according to an embodiment of the present invention. As shown in FIG. 1, base station 10 may include one or more (only one shown) processor 102 (processor 102 may include, but is not limited to, a processing device such as a microprocessor MCU or a programmable logic device FPGA), A memory 104 for storing data, and a transmission device 106 for communication functions. It will be understood by those skilled in the art that the structure shown in FIG. 1 is merely illustrative and does not limit the structure of the above electronic device. For example, base station 10 may also include more or fewer components than those shown in FIG. 1, or have a different configuration than that shown in FIG.

The memory 104 can be configured as a software program and a module for storing application software, such as program instructions/modules corresponding to the signal quality-based power control method in the embodiment of the present invention, and the processor 102 runs the software program and the module stored in the memory 104. In order to perform various functional applications and data processing, the above method is implemented. Memory 104 may include high speed random access memory, and may also include non-volatile memory such as one or more magnetic storage devices, flash memory, or other non-volatile solid state memory. In some examples, memory 104 may further include memory remotely located relative to processor 102, which may be connected to base station 10 over a network. Examples of such networks include, but are not limited to, the Internet, intranets, local area networks, mobile communication networks, and combinations thereof.

Transmission device 106 is arranged to receive or transmit data via a network. The above specific network example may include a wireless network provided by a communication provider of the base station 10. In one example, the transmission device 106 includes a Network Interface Controller (NIC) that can be connected to other network devices through a base station to communicate with the Internet. In one example, The transmission device 106 can be a Radio Frequency (RF) module configured to communicate with the Internet wirelessly.

In this embodiment, a signal quality based power control method running on the foregoing base station is provided. FIG. 2 is a flowchart of signal quality based power control according to an embodiment of the present invention. As shown in FIG. 2, the process includes The following steps:

Step S202: Acquire a transmission power utilization ratio of the cell and a total power consumption ratio of the high speed downlink packet access HSDPA channel of the cell;

Step S204: Determine, according to a comparison result of the transmission power utilization ratio of the cell with the first threshold, and a comparison result of the total power consumption ratio of the HSDPA channel and the second threshold, whether the cell enters a power limited state, where the power limited state is used. Indicates the maximum transmit power of the A-DPCH that limits the HSDPA users within the cell.

In this embodiment, the determining process in the foregoing step S204 may be performed according to a certain time period, but is not limited thereto; the transmission power utilization rate in the foregoing step is a ratio of a transmit power of the cell to a maximum transmit power of the cell, The total channel power ratio is the ratio of the total power of the high speed downlink packet access HSDPA channel of the cell to the configured maximum transmit power of the cell.

Determining whether the cell enters a power-restricted state according to a comparison between the transmit power utilization ratio of the cell and the total power of the HSDPA channel of the cell and the first threshold and the second threshold, and realizing the distinguishing of the state of the cell according to the relevant parameter of the cell And determining whether the power of the HSDPA of the cell is insufficient according to the different states of the cell, and determining whether to indicate the maximum transmit power of the A-DPCH of the HSDPA user in the restricted cell, and the related technology cannot determine whether the A-DPCH transmit power of the HSDPA user is consumed. If the excessive downlink power load causes the non-H power to be too high, the power of the HSDPA scheduler is insufficient, and the corresponding power limitation measures cannot be taken according to the above judgment, which causes the problem of the cell throughput rate to drop, and the user is distinguished according to the relevant parameters. Different states of the cell and determining whether the power of the HSDPA of the cell is insufficient according to different states of the cell, providing a basis for adopting corresponding power limiting measures to limit the downlink power load of the A-DPCH of the HSDPA user, and alleviating the HSDPA power limitation Technical effect to prevent the decline in the throughput rate of the community

Optionally, the execution body of the foregoing steps may be a base station, a terminal, or the like, but is not limited thereto.

In an optional embodiment, when it is determined that the transmit power utilization is greater than the first threshold and the total HSDPA channel power ratio is less than the second threshold, determining that the cell enters the power limited state. In this implementation, the first threshold and the second threshold may be configured default values, where the first threshold may be a cell power load threshold, and the second threshold may be a HSDPA power minimum threshold, but is not limited thereto. this. By using the above-mentioned judgment of relevant parameters, it can be accurately determined whether the HSDPA power of the cell has been affected, and then it is determined whether the maximum power of the HSDPA of the cell has been limited.

In an optional embodiment, after determining that the cell enters the power limited state, and when one of the following conditions is met, determining a cell exit power limited state: the transmit power utilization is less than a third threshold; the total HSDPA channel power is occupied. The ratio is greater than the fourth threshold; the transmit power utilization is less than the third threshold, and the total HSDPA channel power ratio is greater than the fourth threshold; wherein, the third threshold is less than the first threshold, and the fourth threshold is greater than the second threshold. In this embodiment, when it is determined that the cell meets one of the two conditions, the cell may be caused to exit the power limited state and enter a normal state. Optionally, the third threshold may be a cell non-power overload threshold, and the fourth threshold may be a HSDPA power minimum threshold, but is not limited thereto. Through the above-mentioned judging step, when the cell has no influence or less influence on the HSDPA power, the cell is allowed to exit the restricted state, thereby reducing the impact on the cell as much as possible while alleviating the HSDPA power limitation.

In an optional embodiment, the first threshold is down-regulated by the first threshold to obtain a third threshold; and the fourth threshold is raised by the second specified value to obtain a second threshold. In this embodiment, the first specified value and the second The specified value may be an offset value, the first threshold is decremented by an offset value of 1 to obtain a third threshold, and the fourth threshold is raised by an offset value of 2 to obtain a second threshold, wherein the offset value 1 and the offset value 2 may be The same or different and the offset value can be set according to the actual situation.

In an optional embodiment, after determining that the cell enters the power limited state, the HSDPA user entering the A-DPCH power limitation state is queried in the cell entering the power limited state, where the A-DPCH transmission of the HSDPA user is used. Power is greater than the preset power threshold; limit The maximum transmit power of the A-DPCH of the above HSDPA user. In this embodiment, the state of the cell may be detected within a specified time. After determining that the cell enters the power limited state, it is further determined whether the HSDPA user enters the A-DPCH power limitation state and enters the A-DPCH power limitation state. The maximum transmit power of the A-DPCH of the HSDPA user is limited, and the user of the cell entering the power-restricted state is further differentiated and power-limited, thereby effectively limiting the maximum of the HSDPA A-DPCH channel carrying the non-language service. The transmission power effectively alleviates the shortage of HSDPA power, avoiding the occurrence of insufficient power of the HSDPA scheduler and a decrease in the cell throughput rate.

Optionally, the HSDPA user entering the A-DPCH power limitation state may use the A-DPCH maximum power limiting algorithm to control the maximum transmit power of the user's A-DPCH, as follows:

The initial average transmit power value TransPowerAvg(1) of the first average power statistical period after the algorithm is validated, where TransPowerAvg(1) is the power linear value in mw. At the same time, the initial value of the maximum power limit is set to Power_Max(1), which is also the power linear value. It is obtained by adding a fixed offset value to TransPowerAvg(1). The expression is:

Where PowerOffset is a fixed offset value in dB.

After the initial value of the maximum transmit power limit is set, the maximum transmit power limit value is fine-tuned by statistically transmitting the overall transmit power of the Transmit Power Control (TPC) during the average power statistics period. The adjustment period is the same as the average power statistics period. The adjustment method is as follows: firstly, the average value of the actual transmit power of the A-DPCH of the current period, TransPowerAvg(i), i≥2 (linear value, unit mw) and the average value of the actual transmit power of the previous statistical period, TransPowerAvg(i-1) The difference DeltaPower, where DeltaPower needs to be converted into a dB value, the conversion formula is:

DeltaPower is used to determine the maximum power limit value of the current cycle Power_Max(i) and before The maximum power limit value of one cycle Power_Max(i-1) is the correction value PowerPlus. The method of determining is: If the value of DeltaPower is positive, the value of PowerPlus is +Step; otherwise the value of PowerPlus is -Step.

Therefore, the maximum power limit for the current cycle is:

Power_Max(i)=Power_Max(i-1)+PowerPlus (3)

All linear values in the formula are converted to dB values for calculation.

In an optional embodiment, when the A-DPCH transmit power of the HSDPA user entering the A-DPCH power limit state is less than the preset power threshold, and the time in the A-DPCH power limit state is greater than the preset time value, When it is determined, the HSDPA user exits the A-DPCH power limit state. In this embodiment, the foregoing determining step may be performed according to a certain time period, where the time when the HSDPA user satisfies the A-DPCH transmit power less than the preset power threshold and is in the A-DPCH power limit state is greater than the preset time value. The HSDPA user exits the A-DPCH power limit state, which prevents the HSDPA user from entering the A-DPCH power limit state for a certain period of time and the A-DPCH transmit power is less than the preset power threshold. It is still impossible to exit the A-DPCH power limit state.

In an optional embodiment, determining the cell exit power limited state may determine that all HSDPA users in the cell exit the A-DPCH power limit state.

In an optional embodiment, the transmit power utilization ratio may be a ratio of the transmit power of the cell to the maximum transmit power of the cell, and the total channel power ratio may be the total power of the high speed downlink packet access HSDPA channel of the cell and the configured cell. The ratio of the maximum transmit power, but is not limited to this.

Example 2

In this embodiment, a signal quality based power control method running on the base station is provided, and FIG. 3 is a flowchart of signal quality based power control according to an alternative embodiment of the present invention, as shown in FIG. The process includes the following steps:

Step S302, acquiring a transmission power utilization rate of the cell and a total power consumption ratio of the HSDPA channel with a time T ₁ (for example, 1 s) as a cycle;

Step S304, determining whether the transmission power utilization rate of the cell is greater than TH0 (for example, 95%) and the total power of the HSDPA channel is less than TH1 (for example, 30%). If yes, the cell enters the HSDPA power limited state, and step S308 is performed. If no, go to step S306;

Step S306, determining whether the transmit power utilization rate of the cell is less than TH2 (for example, 92%) and/or whether the total power of the HSDPA channel is greater than TH3 (for example, 33%). If yes, the cell exits the HSDPA power limited state, then Step S326 is performed; otherwise, step S302 is performed;

Step S308, it is determined whether there is an HSDPA user whose A-DPCH transmit power is greater than the threshold TH4 (for example, 300mw) in the cell, and if yes, step S310 is performed; otherwise, step S302 is performed;

Step S310, the HSDPA user enters the A-DPCH power limitation state, and calculates the average transmit power TransPowerAvg(1) of the first average power statistical period of each HSDPA user entering the A-DPCH power limit state, and calculates according to formula (1). Power_Max(1);

Step S312, entering the next average power statistics period, and the average power statistics period number is accumulated by i=i+1;

Step S314, counting the average transmit power of the A-DPCH of the i-th average power statistical period TransPowerAvg(i);

Step S316, calculating DeltaPower according to formula (2);

Step S318, determining whether the value of DeltaPower is greater than 0, and if so, PowerPlus = 1 dB; otherwise PowerPlus = -1 dB;

Step S320, calculating Power_Max(i) according to formula (3), and limiting the maximum power of the HSDPA user according to Power_Max(i);

Step S322, it is determined whether the time when the HSDPA user is in the A-DPCH power limitation state is greater than T ₂ (for example, 5 s) and the A-DPCH transmission power of the HSDPA user is less than the threshold value TH4. If yes, step S324 is performed; otherwise, step S324 is performed; otherwise, Go to step S312;

Step S324, the HSDPA user exits the HSDPA power limit state, and step S302 is performed;

Step S326, all HSDPA users of the cell exit the HSDPA power limit state, and step S302 is performed.

4 is a timing relationship diagram (1) of cell state monitoring and HSDPA user power processing according to Embodiment 2 of the present invention. As shown in FIG. 4, the bold portion in the figure is a timing for limiting the maximum power of the A-PDCH. Specifically, user 1 enters the A-PDCH power limit state at 0 s, calculates Power_Max(i) using the A-DPCH maximum power limit algorithm from 1 s to 2 s, and performs maximum A-PDCH power for user 1 in 3 s to 5 s. Restricted, the maximum transmit power of the A-DPCH is detected to be less than the threshold TH4 at 6s, and the A-DPCH power limit is exited; the user 2 enters the A-PDCH power limit state at 0s, and the A-DPCH maximum power is used at 1s to 2s. The limiting algorithm calculates Power_Max(i), limits the maximum power of A-PDCH of user 2 in 3s to 5s, and detects that the maximum transmitting power of A-DPCH is greater than the threshold TH4 at 6s, maintaining the A-DPCH power limiting state. When the maximum transmit power of the A-DPCH is detected to be less than the threshold TH4 at 7s, the A-DPCH power limit is exited.

5 is a timing relationship diagram (2) of cell state monitoring and HSDPA user power processing according to Embodiment 2 of the present invention. As shown in FIG. 5, the bold portion in the figure is a timing for limiting the maximum power of the A-PDCH. Specifically, user 1 enters the A-PDCH power limit state at 0 s, calculates Power_Max(i) using the A-DPCH maximum power limit algorithm from 1 s to 2 s, and determines that the current transmit power utilization is less than TH2 and/or HSDPA at 3 s. If the total channel power ratio is greater than TH3, the cell exits the HSDPA power limited state.

Through the description of the above embodiments, those skilled in the art can clearly understand that the method according to the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course, by hardware, but in many cases, the former is A better implementation. Based on such understanding, the technical solution of the present invention, which is essential or contributes to the prior art, may be embodied in the form of a software product stored in a storage medium (such as ROM/RAM, disk, The optical disc includes a number of instructions for causing a terminal device (which may be a cell phone, a computer, a server, or a network device, etc.) to perform the methods described in various embodiments of the present invention.

Example 3

A signal quality-based power control device is also provided in the embodiment, which is used to implement the above-mentioned embodiments and preferred embodiments, and has not been described again. As used below, the term "module" may implement a combination of software and/or hardware of a predetermined function. Although the apparatus described in the following embodiments is preferably implemented in software, hardware, or a combination of software and hardware, is also possible and contemplated.

FIG. 6 is a structural block diagram of a signal quality based power control apparatus according to an embodiment of the present invention. As shown in FIG. 6, the apparatus includes: an obtaining module 62 configured to acquire a transmit power utilization rate of a cell and a high speed downlink packet connection of a cell. The first determining module 64 is configured to determine whether the cell enters according to a comparison result between the transmit power utilization ratio of the cell and the first threshold, and a comparison between the total power ratio of the HSDPA channel and the second threshold. A power limited state, wherein the power limited state is used to indicate a maximum transmit power of the A-DPCH of the HSDPA user within the restricted cell.

In an optional embodiment, the first determining module 64 is further configured to determine a cell entering a power limited state when determining that the transmit power utilization is greater than the first threshold and the HSDPA channel total power ratio is less than the second threshold.

In an alternative embodiment, another signal quality based power control device is provided. FIG. 7 is a block diagram (1) of a signal quality based power control device according to an alternative embodiment of the present invention, as shown in FIG. As shown, the apparatus includes: a second determining module 72, configured to determine a cell exit power limited state when one of the following conditions is met: the transmit power utilization is less than a third threshold; the HSDPA channel total power ratio is greater than a fourth threshold The transmit power utilization is less than the third threshold, and the HSDPA channel total power ratio is greater than the fourth threshold; wherein the third threshold is less than the first threshold, and the fourth threshold is greater than the second threshold.

In an alternative embodiment, another signal quality based power control device is provided. FIG. 8 is a block diagram of a signal quality based power control device according to an alternative embodiment of the present invention (2), as shown in FIG. As shown, the apparatus includes: a query module 82 configured to query an HSDPA user entering an A-DPCH power limit state in a cell entering a power limited state, where The A-DPCH transmit power of the HSDPA user is greater than a preset power threshold; and the processing module 84 limits the maximum transmit power of the A-DPCH of the HSDPA user.

In an alternative embodiment, another signal quality based power control device is provided, and FIG. 9 is a structural block diagram (3) of a signal quality based power control device according to an alternative embodiment of the present invention, as shown in FIG. As shown, the apparatus includes: a third determining module 92 configured to: when determining that the A-DPCH transmit power of the HSDPA user is less than a preset power threshold and the HSDPA user is in the A-DPCH power limit state for a time greater than a preset time value When it is determined, the HSDPA user exits the A-DPCH power limit state.

It should be noted that each of the above modules may be implemented by software or hardware. For the latter, the foregoing may be implemented by, but not limited to, the foregoing modules are all located in the same processor; or, the above modules are in any combination. The forms are located in different processors.

Example 4

Embodiments of the present invention also provide a storage medium. Optionally, in this embodiment, the foregoing storage medium may be configured to store program code for performing the following steps: S1, acquiring a transmit power utilization ratio of the cell and a total power consumption ratio of the high speed downlink packet access HSDPA channel of the cell. S2, determining whether the cell enters a power limited state according to a comparison result between the transmit power utilization ratio of the cell and the first threshold, and a comparison between the total power consumption ratio of the HSDPA channel and the second threshold, where the power limited state is used Indicates the maximum transmit power of the A-DPCH that limits the HSDPA users within the cell.

Optionally, the storage medium is further configured to store program code for performing the following steps: determining that the cell enters the power limited state when determining that the transmit power utilization is greater than the first threshold and the HSDPA channel total power ratio is less than the second threshold .

Optionally, the storage medium is further configured to store program code for performing the following steps: determining a cell exit power limited state when one of the following conditions is met: the transmit power utilization is less than a third threshold; the total HSDPA channel power is occupied The ratio is greater than the fourth threshold; the transmit power utilization is less than the third threshold, and the total HSDPA channel power ratio is greater than the fourth threshold; wherein the third threshold Less than the first threshold, the fourth threshold is greater than the second threshold.

Optionally, the storage medium is further configured to store program code for performing the steps of: down-regulating the first threshold to obtain a third threshold; and up-regulating the fourth threshold to obtain a second threshold.

Optionally, the storage medium is further configured to store program code for performing the following steps: S1, querying an HSDPA user entering a power-constrained state associated with the dedicated physical channel A-DPCH in a cell entering the power-restricted state, wherein The A-DPCH transmit power of the HSDPA user is greater than a preset power threshold; S2, the maximum transmit power of the A-DPCH of the HSDPA user is limited.

Optionally, the storage medium is further configured to store program code for performing the following steps: when determining that the A-DPCH transmit power of the HSDPA user is less than a preset power threshold and the HSDPA user is in an A-DPCH power limit state When the time is greater than the preset time value, it is determined that the HSDPA user exits the A-DPCH power limit state.

Optionally, the storage medium is further configured to store program code for performing the steps of: determining that all HSDPA users in the cell exit the A-DPCH power limit state

Optionally, in this embodiment, the foregoing storage medium may include, but not limited to, a USB flash drive, a Read-Only Memory (ROM), a Random Access Memory (RAM), a mobile hard disk, and a magnetic memory. A variety of media that can store program code, such as a disc or a disc.

For example, the specific examples in this embodiment may refer to the examples described in the foregoing embodiments and the optional embodiments, and details are not described herein again.

It will be apparent to those skilled in the art that the various modules or steps of the present invention described above can be implemented by a general-purpose computing device that can be centralized on a single computing device or distributed across a network of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein. Perform the steps shown or described, or separate them into individual integrated circuit modules, or multiple of them Blocks or steps are made in a single integrated circuit module. Thus, the invention is not limited to any specific combination of hardware and software.

The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Industrial applicability

The technical solution provided by the embodiment of the present invention may be applied to a signal quality-based power control process, and determining, according to a comparison between a transmit power utilization ratio of a cell and a total power HSDPA channel power ratio of the cell and a first threshold and a second threshold. Whether the cell enters the power-restricted state, whether to distinguish the state of the cell according to the relevant parameter of the cell, and determining whether the power of the HSDPA of the cell is insufficient according to different states of the cell, and then determining whether to indicate the A-DPCH of the HSDPA user in the restricted cell. The maximum transmit power can solve the problem that the related technology cannot judge whether the A-DPCH transmit power of the HSDPA user consumes too much downlink power load, causing the non-H power to be too high, and whether the power of the HSDPA scheduler is insufficient, and cannot be taken according to the above judgment. Corresponding power limiting measures lead to a problem of a decrease in the throughput rate of the cell, and the different states of the cell in which the user is located are determined according to relevant parameters, and whether the power of the HSDPA of the cell is determined according to different states of the cell is insufficient, and the corresponding power limiting measure is adopted to limit the HSDPA. The downlink power of the user's A-DPCH is negative. It provides a basis to ease the situation HSDPA power is limited, preventing the cell-throughput decline technical effect.

Claims

A signal quality based power control method comprising:

Obtaining a transmission power utilization ratio of the cell and a total power consumption ratio of the high speed downlink packet access HSDPA channel of the cell;

Determining whether the cell enters a power limited state according to a comparison result of the transmit power utilization ratio of the cell with a first threshold, and a comparison result of a total power consumption ratio of the HSDPA channel and a second threshold, where The power limited state is used to indicate the maximum transmit power of the associated dedicated physical channel A-DPCH that limits the HSDPA users within the cell.
The method according to claim 1, wherein determining whether the cell enters the power limited state according to the transmit power utilization ratio of the cell and the total HSDPA channel power ratio of the cell includes :

When it is determined that the transmit power utilization is greater than the first threshold and the total HSDPA channel power ratio is less than the second threshold, determining that the cell enters the power limited state.
The method of claim 2, wherein after determining that the cell enters the power limited state, the method further comprises:

Determining that the cell exits the power limited state when one of the following conditions is met:

The transmission power utilization rate is less than a third threshold;

The total power ratio of the HSDPA channel is greater than a fourth threshold;

The transmission power utilization ratio is less than a third threshold, and the total power ratio of the HSDPA channel is greater than a fourth threshold;

The third threshold is smaller than the first threshold, and the fourth threshold is greater than the second threshold.
The method of claim 3, wherein the first threshold is down-regulated by a first specified value to obtain the third threshold; and the fourth threshold is raised by a second specified value to obtain the second threshold.
The method of claim 2, wherein after determining that the cell enters the power limited state, the method further comprises:

Querying, in a cell that enters the power-restricted state, the HSDPA user that enters an A-DPCH power limitation state, where the A-DPCH transmit power of the HSDPA user is greater than a preset power threshold;

Limiting the maximum transmit power of the A-DPCH of the HSDPA user.
The method of claim 5 wherein the method further comprises:

Determining that when the A-DPCH transmit power of the HSDPA user is less than the preset power threshold and the time when the HSDPA user is in the A-DPCH power limit state is greater than a preset time value The HSDPA user exits the A-DPCH power limit state.
The method of claim 6, wherein determining that the cell exits the power limited state comprises determining that all HSDPA users in the cell exit the A-DPCH power limit state.
The method according to any one of claims 1 to 7, wherein the transmission power utilization ratio is a ratio of a transmission power of the cell to a maximum transmission power of the cell, and the total channel power ratio is The ratio of the total power of the high speed downlink packet access HSDPA channel of the cell to the configured maximum transmit power of the cell.
A signal quality based power control device comprising:

Obtaining a module, configured to acquire a transmission power utilization ratio of the cell and a total power consumption ratio of the high speed downlink packet access HSDPA channel of the cell;

a first determining module, configured to determine whether the cell enters power according to a comparison result between the transmit power utilization ratio of the cell and a first threshold, and a comparison result of a total power ratio of the HSDPA channel and a second threshold A restricted state, wherein the power limited state is used to indicate a maximum transmit power that is associated with a dedicated physical channel A-DPCH of an HSDPA user within the cell.
The apparatus according to claim 9, wherein the first determining module is further configured to: when it is determined that the transmit power utilization is greater than the first threshold and the total HSDPA channel power ratio is less than the second threshold Determining that the cell enters the power limited state.
The apparatus according to claim 10, further comprising: a second determining module, configured to determine that the cell exits the power limited state when one of the following conditions is met: the transmit power utilization is less than the third Threshold; the total power ratio of the HSDPA channel is greater than a fourth threshold; the transmit power utilization is less than a third threshold, and the total power of the HSDPA channel is greater than a fourth threshold; wherein the third threshold is less than the a first threshold, the fourth threshold being greater than the second threshold.
The apparatus of claim 10, further comprising:

The Query Module is configured to query the HSDPA user that enters the A-DPCH power limitation state in the cell that enters the power-restricted state, where the A-DPCH transmit power of the HSDPA user is greater than a preset power threshold. ;

And a processing module configured to limit a maximum transmit power of the A-DPCH of the HSDPA user.
The apparatus according to claim 12, further comprising: a third determining module, configured to: when determining that the A-DPCH transmit power of the HSDPA user is less than the preset power threshold and the HSDPA user When the time in the A-DPCH power limitation state is greater than the preset time value, it is determined that the HSDPA user exits the A-DPCH power limitation state.