CN103238347B - Poewr control method and equipment - Google Patents
Poewr control method and equipment Download PDFInfo
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- CN103238347B CN103238347B CN201280002551.0A CN201280002551A CN103238347B CN 103238347 B CN103238347 B CN 103238347B CN 201280002551 A CN201280002551 A CN 201280002551A CN 103238347 B CN103238347 B CN 103238347B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/18—TPC being performed according to specific parameters
- H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
- H04W52/243—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account interferences
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Abstract
The present invention provides a kind of Poewr control method and equipment.The method includes identifying poor-quality terminal；Determine the interference source of described poor-quality terminal；Reduce the transmitting power of described interference source.The embodiment of the present invention can realize the power of user class and control.
Description
Technical Field
The present invention relates to communications technologies, and in particular, to a power control method and device.
Background
The power control means that the transmitting power of the base station and the mobile phone is adjusted according to the receiving level and the receiving quality carried in the measurement report reported by the mobile phone and the base station, and the purpose is to reduce the transmitting power on the premise of ensuring the call quality, thereby reducing the interference of the whole network, reducing the call drop rate as much as possible, or improving the throughput rate and improving the user experience.
However, the power control algorithms in each system are all cell-level, that is, the same cell adopts the same power control strategy, and cannot achieve user level. For poor quality users, according to the power control strategy at the cell level, full power transmission may be performed at this time, but the throughput rate is still limited or there is still a great risk of call drop.
Disclosure of Invention
In view of this, embodiments of the present invention provide a power control method and device, so as to solve the problem in the prior art that user-level power control cannot be implemented.
In a first aspect, a power control method is provided, including:
identifying a poor quality terminal;
determining an interference source of the poor quality terminal;
reducing the transmit power of the interferer.
With reference to the first aspect, in a first possible implementation manner of the first aspect, the identifying a poor quality terminal includes:
receiving measurement reports reported by a terminal, and identifying the terminal as a poor quality terminal if quality grades carried in N1 continuous measurement reports are lower than a set quality grade; or,
performing quality detection on a wireless channel of a terminal, and if the quality grades obtained by continuous N2 detections are all lower than a set quality grade, identifying the terminal as a poor quality terminal; or,
receiving measurement reports reported by a terminal, if the quality grades carried in N1 continuous measurement reports are all lower than a set quality grade, performing quality detection on a wireless channel of the terminal, and if the quality grades obtained by N2 continuous detection reports are all lower than the set quality grade, identifying the terminal as a poor quality terminal; or,
if M downlink measurement reports are continuously lost, identifying the terminal as a poor quality terminal; or,
if RLT-S is larger than alpha, identifying the terminal as a poor terminal;
wherein, N1, N2, M and α are set thresholds, RLT is a set radio link failure count value, S is determined according to whether SACCH message reported by the terminal is correctly decoded, the initial value of S is RLT, S is subtracted by 1 when incorrectly decoded, and S is added by 2 when correctly decoded.
With reference to the first aspect or the first possible implementation manner of the first aspect, in a second possible implementation manner of the first aspect, the determining an interference source of the poor quality terminal includes:
acquiring time domain information and frequency domain information of the poor quality terminal;
and determining an interference source of the poor quality terminal according to the time domain information and the frequency domain information.
With reference to the second possible implementation manner of the first aspect, in a third possible implementation manner of the first aspect, the time domain information and the frequency domain information are respectively a TS and a frequency point, and an interference source of the poor quality terminal is:
and the interference source has the same TS as the terminal and has the same frequency point or the interference source with the adjacent frequency point, wherein the strength of the interference source is at the front X position, and X is a preset value.
With reference to the first aspect or any one of the first to third possible implementation manners of the first aspect, in a fourth possible implementation manner of the first aspect, the reducing the transmission power of the interference source includes:
reducing a power control level threshold and/or a quality threshold of the interference source; or,
and increasing the power control step size of the interference source.
In a second aspect, there is provided a power control apparatus comprising:
the identification module is used for identifying the poor quality terminal;
a determining module, configured to determine an interference source of the poor quality terminal;
and the power control module is used for reducing the transmitting power of the interference source.
With reference to the second aspect, in a first possible implementation manner of the second aspect, the identification module is specifically configured to:
receiving measurement reports reported by a terminal, and identifying the terminal as a poor quality terminal if quality grades carried in N1 continuous measurement reports are lower than a set quality grade; or,
performing quality detection on a wireless channel of a terminal, and if the quality grades obtained by continuous N2 detections are all lower than a set quality grade, identifying the terminal as a poor quality terminal; or,
receiving measurement reports reported by a terminal, if the quality grades carried in N1 continuous measurement reports are all lower than a set quality grade, performing quality detection on a wireless channel of the terminal, and if the quality grades obtained by N2 continuous detection reports are all lower than the set quality grade, identifying the terminal as a poor quality terminal; or,
if M downlink measurement reports are continuously lost, identifying the terminal as a poor quality terminal; or,
if RLT-S is larger than alpha, identifying the terminal as a poor terminal;
wherein, N1, N2, M and α are set thresholds, RLT is a set radio link failure count value, S is determined according to whether SACCH message reported by the terminal is correctly decoded, the initial value of S is RLT, S is subtracted by 1 when incorrectly decoded, and S is added by 2 when correctly decoded.
With reference to the second aspect or the first possible implementation manner of the second aspect, in a second possible implementation manner of the second aspect, the determining module is specifically configured to:
acquiring time domain information and frequency domain information of the poor quality terminal;
and determining an interference source of the poor quality terminal according to the time domain information and the frequency domain information.
With reference to the second possible implementation manner of the second aspect, in a third possible implementation manner of the second aspect, the time domain information and the frequency domain information are a TS and a frequency point, respectively, and the determining module is specifically configured to:
and determining an interference source with the same TS as the poor quality terminal and with the same frequency point or the intensity of the interference source with the adjacent frequency point at the front X position as the interference source of the poor quality terminal, wherein X is a preset value.
With reference to the second aspect or any one of the first to third possible implementation manners of the second aspect, in a fourth possible implementation manner of the second aspect, the power control module is specifically configured to:
reducing a power control level threshold and/or a quality threshold of the interference source; or,
and increasing the power control step size of the interference source.
In a third aspect, a power control device is provided, including:
a processor for identifying a poor quality terminal; and determining an interference source of the poor quality terminal;
a power controller for reducing the transmit power of the interferer.
With reference to the third aspect, in a first possible implementation manner of the third aspect, the method further includes:
the receiver is used for receiving a measurement report reported by the terminal or detecting the quality of a wireless channel of the terminal;
the processor is specifically configured to identify that the terminal is a poor quality terminal if quality levels carried in N1 consecutive measurement reports are all lower than a set quality level; or if the quality grades obtained by continuous N2 detections are all lower than the set quality grade, identifying the terminal as a poor quality terminal; or receiving measurement reports reported by a terminal, if the quality grades carried in N1 continuous measurement reports are all lower than the set quality grade, and performing quality detection on a wireless channel of the terminal, and if the quality grades obtained by N2 continuous detection are all lower than the set quality grade, identifying the terminal as a poor quality terminal; or, if M downlink measurement reports are continuously lost, identifying the terminal as a poor terminal; or if RLT-S is larger than alpha, identifying the terminal as a poor terminal;
wherein, N1, N2, M and α are set thresholds, RLT is a set radio link failure count value, S is determined according to whether SACCH message reported by the terminal is correctly decoded, the initial value of S is RLT, S is subtracted by 1 when incorrectly decoded, and S is added by 2 when correctly decoded.
With reference to the third aspect or the first possible implementation manner of the third aspect, in a second possible implementation manner of the third aspect, the processor is specifically configured to:
acquiring time domain information and frequency domain information of the poor quality terminal;
and determining an interference source of the poor quality terminal according to the time domain information and the frequency domain information.
With reference to the second possible implementation manner of the third aspect, in a third possible implementation manner of the third aspect, the time domain information and the frequency domain information are a TS and a frequency point, respectively, and the processor is specifically configured to:
and determining an interference source with the same TS as the poor quality terminal and with the same frequency point or the intensity of the interference source with the adjacent frequency point at the front X position as the interference source of the poor quality terminal, wherein X is a preset value.
With reference to the third aspect or any one of the first to third possible implementation manners of the third aspect, in a fourth possible implementation manner of the third aspect, the power controller is specifically configured to:
reducing a power control level threshold and/or a quality threshold of the interference source; or,
and increasing the power control step size of the interference source.
By the technical scheme, the transmitting power of the interference source of the poor quality terminal is reduced, and the interference to the poor quality user can be reduced, the call quality of the poor quality user can be improved in time and the power control of the user level can be realized due to the reduction of the transmitting power of the interference source.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive labor.
FIG. 1 is a flow chart illustrating a power control method according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a situation of a measurement report reported by a terminal in an embodiment of the present invention;
fig. 3 is a schematic diagram of another situation of a measurement report reported by a terminal in an embodiment of the present invention;
FIG. 4 is a flow chart illustrating a power control method according to another embodiment of the present invention;
fig. 5 is a schematic diagram of a timeslot and a carrier frequency of each terminal in an embodiment of the present invention;
fig. 6 is another schematic diagram of time slots and carrier frequencies of terminals in the embodiment of the present invention;
FIG. 7 is a schematic structural diagram of a power control apparatus according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of another embodiment of the power control apparatus of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Fig. 1 is a schematic flow chart of an embodiment of a power control method of the present invention, including:
11: the network equipment identifies the poor quality terminal;
12: the network equipment determines an interference source of the poor quality terminal;
13: the network equipment reduces the transmission power of the interference source.
The embodiments of the present invention may be applied to any wireless related scenario, and the network device in different wireless systems may refer to different specific devices, for example, in a 2G system, the network device may be a Base Station Controller (BSC) or a Base Station (BS), or in a 3G system, the network device may be an evolved node b (eNodeB), and the like.
The poor terminal may refer to a terminal with poor quality of continuous signals, and may be identified by any one of the following methods:
the first method is as follows: receiving measurement reports reported by a terminal, and identifying the terminal as a poor quality terminal if quality grades carried in N1 continuous measurement reports are lower than a set quality grade;
as shown in fig. 2, the terminal may Measure the quality of the downlink signal and Report a Measurement Report (MR) to the base station, where the measurement Report carries a quality level. The quality grade value is usually any integer between 0 and 7, and the quality is poorer when the value is larger.
It may be arranged that if the value of the quality level in N1 consecutive measurement reports is 7, or 6 or 7, the corresponding terminal is identified as a poor terminal.
The second method comprises the following steps: performing quality detection on a wireless channel of a terminal, and if the quality grades obtained by continuous N2 quality detections are all lower than a set quality grade, identifying the terminal as a poor quality terminal;
for the uplink signal, the base station may perform quality detection on the uplink signal to obtain a quality level, and at this time, if the base station detects that the quality level of the uplink signal of one terminal is 7 or 6 or 7 for N2 consecutive times, the terminal is identified as a poor terminal.
It is understood that the first and second modes are determined according to the quality detection results of the downlink and uplink, respectively, or the downlink and uplink may be combined, for example, if the quality levels of N1 continuous downlinks are lower than the set quality level and the quality levels of N2 continuous uplinks are lower than the set quality level, the terminal is identified as a poor quality terminal. The above-mentioned N1 and N2 may be the same or different.
The third method comprises the following steps: if M downlink measurement reports are continuously lost, identifying the terminal as a poor quality terminal;
as shown in fig. 3, if M consecutive base stations in the measurement report reported by the terminal do not receive the measurement report, the terminal is identified as a poor terminal.
The method is as follows: if RLT-S is larger than alpha, identifying the terminal as a poor terminal;
here, RLT is a radio link failure count value and is a predetermined fixed value. Alpha is the set threshold. S is determined according to whether a Slow Associated Control Channel (SACCH) message is correctly decoded, for example, an initial value of S is RLT, S is decreased by 1 when the S is incorrectly decoded, and is increased by 2 when the S is correctly decoded.
After the poor quality terminals are identified by the method, the interference sources of the terminals can be further identified, so that the transmission power of the interference sources is reduced, the interference to the terminals is reduced, and the call drop of the terminals or the influence on the throughput rate is avoided.
The following method may be adopted to identify the interference sources of the terminals, as shown in fig. 4, including:
41: the eNodeB identifies a poor quality terminal;
42: the eNodeB acquires time domain information and frequency domain information of the poor quality terminal.
The Time domain information may refer to a Time Slot (TS), and the frequency domain information may refer to a frequency point occupied by the call.
As shown in fig. 5, the eNodeB records parameters corresponding to different timeslots and different carrier frequencies in a cell, and takes a frequency point as a Mobile Allocation Index Offset (MAIO) as an example. For example, the two values corresponding to time slot 6 and Carrier frequency 1 are (0, 12), where 0 represents MAIO and 12 represents Carrier Interference Radio (CIR).
The eNodeB can determine the time slot and the frequency point of the terminal through the calling number. For example, if the timeslot and the carrier frequency are determined to be 5 and 0, respectively, by the call number, then since TS is 5, carrier frequency (TRX) is 0 corresponding to (0, 4), and the previous one represents a frequency point, then TS of the terminal may be determined to be 5, and the frequency point may be 0.
43: and the eNodeB searches the same frequency or adjacent frequency interference of the poor quality terminal according to the TS and the frequency point.
The same frequency interference refers to the interference which is the same as the TS of the terminal and the frequency point, and the adjacent frequency interference refers to the interference which is the same as the TS of the terminal and the adjacent frequency point.
For example, referring to fig. 6, the terminal corresponding to (0, 20) of the neighboring cell in the schematic diagram 60 recorded in the base station is the co-channel interference of the poor terminal.
44: and the eNodeB selects an interference source with the interference intensity positioned at the front X position, wherein X is a set value.
The eNodeB may determine the signal strength of the received co-channel interference or adjacent channel interference as the interference strength to the poor quality terminal, sort the interference strength according to the signal strength, and sequentially select the higher X interference sources.
45: the eNodeB reduces the transmit power of the selected interferer.
The power control level threshold and/or quality threshold of the interferer may be lowered.
The magnitude of the reduction and the duration of the reduction in power may be configurable.
Since the power control is based on a threshold, for example, a level value carried in the measurement report above a level threshold indicates that the power needs to be reduced. Therefore, when the threshold is lowered, the transmission power can be reduced more possibly to reduce the interference to the poor terminal.
Alternatively, the reduction of the transmission power may be achieved by increasing the step size of the power control.
Wherein the magnitude of the increase may also be configurable. The transmit power can be reduced even more due to the increased step size.
In this embodiment, the eNodeB is taken as an execution subject, and other devices may be adopted as the execution subject in other systems, for example, the eNodeB is replaced by a BSC or a BTS.
The embodiment reduces the transmission power of the interference source by determining the interference source of the poor quality terminal, so as to reduce the interference to the users, improve the call quality, and avoid call drop or influence on the throughput rate.
Fig. 7 is a schematic structural diagram of a power control apparatus according to an embodiment of the present invention, where the apparatus may be a base station or located in a base station, and the apparatus 70 includes an identification module 71, a determination module 72, and a power control module 73; the identification module 71 is used for identifying a poor quality terminal; the determining module 72 is configured to determine an interference source of the poor quality terminal; the power control module 73 is configured to reduce the transmission power of the interference source.
Optionally, the identification module is specifically configured to:
receiving measurement reports reported by a terminal, and identifying the terminal as a poor quality terminal if quality grades carried in N1 continuous measurement reports are lower than a set quality grade; or, performing quality detection on a wireless channel of the terminal, and if the quality grades obtained by continuous N2 quality detections are all lower than a set quality grade, identifying that the terminal is a poor quality terminal; or receiving measurement reports reported by a terminal, if the quality grades carried in N1 continuous measurement reports are all lower than the set quality grade, and performing quality detection on a wireless channel of the terminal, and if the quality grades obtained by N2 continuous detection are all lower than the set quality grade, identifying the terminal as a poor quality terminal; or,
if M downlink measurement reports are continuously lost, identifying the terminal as a poor quality terminal; or,
if RLT-S is larger than alpha, identifying the terminal as a poor terminal;
wherein, N1, N2, M and α are set thresholds, RLT is a set radio link failure count value, S is determined according to whether SACCH message reported by the terminal is correctly decoded, the initial value of S is RLT, S is subtracted by 1 when incorrectly decoded, and S is added by 2 when correctly decoded.
Optionally, the determining module is specifically configured to:
acquiring time domain information and frequency domain information of the poor quality terminal;
determining an interference source of the poor quality terminal according to the time domain information and the frequency domain information; for example, an interference source with the same time domain information as the poor quality terminal and with the same frequency domain information or adjacent frequency domain information, of the interference sources with the strength of the first X bits, is determined as the interference source of the poor quality terminal, and X is a preset value.
Optionally, the time domain information and the frequency domain information are respectively a TS and a frequency point, and the determining module is specifically configured to:
and determining the interference source with the same TS as the poor quality terminal and the front X-bit strength in the interference sources with the same frequency point or adjacent frequency points as the interference source of the poor quality terminal.
Optionally, the power control module is specifically configured to:
reducing a power control level threshold and/or a quality threshold of the interference source; or,
and increasing the power control step size of the interference source.
In the embodiment, the interference source of the poor quality terminal is determined, so that the transmission power of the interference source is reduced, the interference to the users can be reduced, the call quality can be improved in time, and the call drop or the influence on the throughput rate can be avoided.
Fig. 8 is a schematic structural diagram of an embodiment of the power control apparatus of the present invention, where the apparatus may be a base station or located in a base station, and the apparatus 80 includes a transmitting circuit 82, a receiving circuit 83, a power controller 84, a codec 85, a processor 86, a memory 87, and an antenna 81. A processor 86 controls the operation of the device 80, the processor 86 also being referred to as a CPU. Memory 87 may include both read-only memory and random-access memory and provides instructions and data to processor 86. A portion of the memory 87 may also include non-volatile row random access memory (NVRAM). In particular applications, device 80 may be embedded in or may itself be a network or wireless communication device and may further include a carrier that houses transmit circuitry 82 and receive circuitry 83 to allow data to be transmitted and received between device 80 and a remote device. It is possible that device 80 is also a simple schematic of a network or wireless device. The transmit circuit 82 and the receive circuit 83 may be coupled to an antenna 81. The various components of device 80 are coupled together by a bus system 88, wherein bus system 88 includes a power bus, a control bus, and a status signal bus in addition to a data bus. For clarity of illustration, however, the various buses are labeled in the figure as bus system 88.
The processor described above may be a general purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components. The various methods, steps and logic blocks disclosed in the embodiments of the present invention may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor, decoder, etc. The steps of the method disclosed in connection with the embodiments of the present invention may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in a memory 87, and the processor 86 reads the information in the memory 87 and performs the steps of the method in combination with the hardware.
Specifically, the processor is used for identifying the poor quality terminal; and determining an interference source of the poor quality terminal; the power controller is used for reducing the transmitting power of the interference source.
Optionally, the method further includes:
the receiver is used for receiving a measurement report reported by the terminal or detecting the quality of a wireless channel of the terminal;
the processor is specifically configured to identify that the terminal is a poor quality terminal if quality levels carried in N1 consecutive measurement reports are all lower than a set quality level; or, if the quality grades obtained by N2 continuous quality detections are all lower than the set quality grade, identifying that the terminal is a poor quality terminal; or receiving measurement reports reported by a terminal, if the quality grades carried in N1 continuous measurement reports are all lower than the set quality grade, and performing quality detection on a wireless channel of the terminal, and if the quality grades obtained by N2 continuous detection are all lower than the set quality grade, identifying the terminal as a poor quality terminal; or if M measurement reports reported by the terminal are continuously lost, identifying the terminal as a poor quality terminal; or if RLT-S is larger than alpha, identifying the terminal as a poor terminal;
wherein, N1, N2, M and alpha are set threshold values, RLT is a set radio link failure count value, S is determined according to whether the SACCH message reported by the terminal is correctly decoded, the initial value of S is RLT, S is subtracted by 1 when the SACCH message is incorrectly decoded, and S is added by 2 when the SACCH message is correctly decoded;
optionally, the processor is specifically configured to:
acquiring time domain information and frequency domain information of the poor quality terminal;
determining an interference source of the poor quality terminal according to the time domain information and the frequency domain information; for example, an interference source with the same time domain information as the poor quality terminal and with the same frequency domain information or adjacent frequency domain information, of the interference sources with the strength of the first X bits, is determined as the interference source of the poor quality terminal, and X is a preset value.
Optionally, the time domain information and the frequency domain information are a TS and a frequency point, respectively, and the processor is specifically configured to:
and determining the interference source with the same TS as the poor quality terminal and the front X-bit strength in the interference sources with the same frequency point or adjacent frequency points as the interference source of the poor quality terminal.
Optionally, the power controller is specifically configured to:
reducing a power control level threshold and/or a quality threshold of the interference source; or,
and increasing the power control step size of the interference source.
In the embodiment, the interference source of the poor quality terminal is determined, so that the transmission power of the interference source is reduced, the interference to the users can be reduced, the call quality is improved, the call drop is avoided, and the throughput is improved.
It will be clear to those skilled in the art that, for convenience and simplicity of description, the foregoing division of the functional modules is merely used as an example, and in practical applications, the above function distribution may be performed by different functional modules according to needs, that is, the internal structure of the device is divided into different functional modules to perform all or part of the above described functions. For the specific working processes of the system, the apparatus and the unit described above, reference may be made to the corresponding processes in the foregoing method embodiments, and details are not described here again.
In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other manners. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the modules or units is only one logical division, and there may be other divisions when actually implemented, for example, a plurality of units or components may be combined or may be integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be substantially implemented or contributed by the prior art, or all or part of the technical solution may be embodied in a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, a network device, or the like) or a processor (processor) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
The above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.
Claims (9)
1. A method of power control, comprising:
identifying a poor quality terminal, wherein the poor quality terminal is a terminal with poor quality of continuous signals;
determining an interference source of the poor quality terminal;
reducing the transmission power of the interference source;
wherein the determining the interference source of the poor quality terminal comprises:
acquiring time domain information and frequency domain information of the poor quality terminal;
determining an interference source of the poor quality terminal according to the time domain information and the frequency domain information;
the quality-difference identifying terminal comprises:
receiving measurement reports reported by a terminal, and identifying the terminal as a poor quality terminal if quality grades carried in N1 continuous measurement reports are lower than a set quality grade; or,
performing quality detection on a wireless channel of a terminal, and if the quality grades obtained by continuous N2 detections are all lower than a set quality grade, identifying the terminal as a poor quality terminal; or,
receiving measurement reports reported by a terminal, if the quality grades carried in N1 continuous measurement reports are all lower than a set quality grade, performing quality detection on a wireless channel of the terminal, and if the quality grades obtained by N2 continuous detection reports are all lower than the set quality grade, identifying the terminal as a poor quality terminal; or,
if M downlink measurement reports are continuously lost, identifying the terminal as a poor quality terminal; or,
if RLT-S is larger than alpha, identifying the terminal as a poor terminal;
wherein, N1, N2, M and α are set threshold values, RLT is a set radio link failure count value, S is determined according to whether a slow associated control channel SACCH message reported by a terminal is correctly decoded, an initial value of S is RLT, S is decreased by 1 when incorrectly decoded, and S is increased by 2 when correctly decoded.
2. The method of claim 1, wherein the time domain information and the frequency domain information are time slots TS and frequency points, respectively, and the interference sources of the poor quality terminal are:
and the interference source with the same TS and the same frequency point or the adjacent frequency point in the interference source with the strength at the front X position is the preset value X.
3. The method of claim 1 or 2, wherein the reducing the transmission power of the interferer comprises:
reducing a power control level threshold and/or a quality threshold of the interference source; or,
and increasing the power control step size of the interference source.
4. A power control apparatus, comprising:
the identification module is used for identifying a poor quality terminal, wherein the poor quality terminal is a terminal with poor quality of continuous signals;
a determining module, configured to determine an interference source of the poor quality terminal;
the power control module is used for reducing the transmitting power of the interference source;
wherein the determining module is specifically configured to:
acquiring time domain information and frequency domain information of the poor quality terminal;
determining an interference source of the poor quality terminal according to the time domain information and the frequency domain information;
the identification module is specifically configured to:
receiving measurement reports reported by a terminal, and identifying the terminal as a poor quality terminal if quality grades carried in N1 continuous measurement reports are lower than a set quality grade; or,
performing quality detection on a wireless channel of a terminal, and if the quality grades obtained by continuous N2 detections are all lower than a set quality grade, identifying the terminal as a poor quality terminal; or,
receiving measurement reports reported by a terminal, if the quality grades carried in N1 continuous measurement reports are all lower than a set quality grade, performing quality detection on a wireless channel of the terminal, and if the quality grades obtained by N2 continuous detection reports are all lower than the set quality grade, identifying the terminal as a poor quality terminal; or,
if M downlink measurement reports are continuously lost, identifying the terminal as a poor quality terminal; or,
if RLT-S is larger than alpha, identifying the terminal as a poor terminal;
wherein, N1, N2, M and α are set threshold values, RLT is a set radio link failure count value, S is determined according to whether a slow associated control channel SACCH message reported by a terminal is correctly decoded, an initial value of S is RLT, S is decreased by 1 when incorrectly decoded, and S is increased by 2 when correctly decoded.
5. The device according to claim 4, wherein the time domain information and the frequency domain information obtained by the determining module are a time slot TS and a frequency point, respectively, and the determining module is specifically configured to: and determining an interference source with the same TS as the poor quality terminal and with the same frequency point or the intensity of the interference source with the adjacent frequency point at the front X position as the interference source of the poor quality terminal, wherein X is a preset value.
6. The device according to claim 4 or 5, wherein the power control module is specifically configured to:
reducing a power control level threshold and/or a quality threshold of the interference source; or,
and increasing the power control step size of the interference source.
7. A power control apparatus, comprising:
the processor is used for identifying a poor quality terminal, wherein the poor quality terminal is a terminal with poor quality of continuous signals; and determining an interference source of the poor quality terminal;
a power controller for reducing the transmit power of the interferer;
wherein the processor is specifically configured to: acquiring time domain information and frequency domain information of the poor quality terminal; determining an interference source of the poor quality terminal according to the time domain information and the frequency domain information;
the power control apparatus further includes:
the receiver is used for receiving a measurement report reported by the terminal or detecting the quality of a wireless channel of the terminal;
the processor is specifically configured to identify that the terminal is a poor quality terminal if quality levels carried in N1 consecutive measurement reports are all lower than a set quality level; or if the quality grades obtained by continuous N2 detections are all lower than the set quality grade, identifying the terminal as a poor quality terminal; or receiving measurement reports reported by a terminal, if the quality grades carried in N1 continuous measurement reports are all lower than the set quality grade, and performing quality detection on a wireless channel of the terminal, and if the quality grades obtained by N2 continuous detection are all lower than the set quality grade, identifying the terminal as a poor quality terminal; or, if M downlink measurement reports are continuously lost, identifying the terminal as a poor terminal; or if RLT-S is larger than alpha, identifying the terminal as a poor terminal;
wherein, N1, N2, M and α are set threshold values, RLT is a set radio link failure count value, S is determined according to whether a slow associated control channel SACCH message reported by a terminal is correctly decoded, an initial value of S is RLT, S is decreased by 1 when incorrectly decoded, and S is increased by 2 when correctly decoded.
8. The device according to claim 7, wherein the time domain information and the frequency domain information are a time slot TS and a frequency point, respectively, and the processor is specifically configured to:
and determining an interference source with the same TS as the poor quality terminal and with the same frequency point or the intensity of the interference source with the adjacent frequency point at the front X position as the interference source of the poor quality terminal, wherein X is a preset value.
9. The apparatus according to claim 7 or 8, wherein the power controller is specifically configured to:
reducing a power control level threshold and/or a quality threshold of the interference source; or,
and increasing the power control step size of the interference source.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2012/087704 WO2014101056A1 (en) | 2012-12-27 | 2012-12-27 | Power control method and device |
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| Publication Number | Publication Date |
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| CN103238347A CN103238347A (en) | 2013-08-07 |
| CN103238347B true CN103238347B (en) | 2016-10-26 |
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| CN201280002551.0A Active CN103238347B (en) | 2012-12-27 | 2012-12-27 | Poewr control method and equipment |
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| CN103238347B (en) * | 2012-12-27 | 2016-10-26 | 华为技术有限公司 | Poewr control method and equipment |
| CN105188102B (en) * | 2015-09-24 | 2019-07-12 | 上海斐讯数据通信技术有限公司 | A kind of wireless channel automatic selecting method and system |
| CN106658567B (en) * | 2016-12-09 | 2020-05-22 | 厦门安胜网络科技有限公司 | Mobile communication terminal detection equipment |
| CN111372183B (en) * | 2018-12-06 | 2021-05-07 | 中国移动通信集团陕西有限公司 | Method, device, equipment and storage medium for identifying poor terminal |
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| CN102118844A (en) * | 2011-03-23 | 2011-07-06 | 华为技术有限公司 | Dispatching method, dispatching device and base station |
| CN102523586A (en) * | 2011-12-19 | 2012-06-27 | 大唐移动通信设备有限公司 | Cell interference inhibiting method and equipment based on control channel |
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| US20110201277A1 (en) * | 2008-11-07 | 2011-08-18 | Kyocera Corporation | Radio communication system, radio base station, and radio communication method |
| CN103238347B (en) * | 2012-12-27 | 2016-10-26 | 华为技术有限公司 | Poewr control method and equipment |
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| CN102118844A (en) * | 2011-03-23 | 2011-07-06 | 华为技术有限公司 | Dispatching method, dispatching device and base station |
| CN102523586A (en) * | 2011-12-19 | 2012-06-27 | 大唐移动通信设备有限公司 | Cell interference inhibiting method and equipment based on control channel |
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