WO2014063315A1 - Procédé, appareil et système de contrôle de brouillage - Google Patents

Procédé, appareil et système de contrôle de brouillage Download PDF

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Publication number
WO2014063315A1
WO2014063315A1 PCT/CN2012/083422 CN2012083422W WO2014063315A1 WO 2014063315 A1 WO2014063315 A1 WO 2014063315A1 CN 2012083422 W CN2012083422 W CN 2012083422W WO 2014063315 A1 WO2014063315 A1 WO 2014063315A1
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WO
WIPO (PCT)
Prior art keywords
detection signal
power control
processing
control signal
signal
Prior art date
Application number
PCT/CN2012/083422
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English (en)
Chinese (zh)
Inventor
赵悦莹
王宗杰
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to CN201280001399.4A priority Critical patent/CN104081833A/zh
Priority to PCT/CN2012/083422 priority patent/WO2014063315A1/fr
Publication of WO2014063315A1 publication Critical patent/WO2014063315A1/fr

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Classifications

    • 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
    • H04W52/244—Interferences in heterogeneous networks, e.g. among macro and femto or pico cells or other sector / system interference [OSI]

Definitions

  • the present invention relates to communication technologies, and in particular, to an interference control method, apparatus, and system. Background technique
  • the quality of users in the edge area and the user service area in the macro-cell hotspot area are often not guaranteed.
  • FIG. 1 is a schematic diagram of the uplink and downlink power balance lines in the prior art, as shown in FIG.
  • the uplink power balance line 1 has the same distance from the macro cell base station and the micro cell base station respectively, and the downlink power balance line 2 is close to the micro cell base station.
  • the so-called uplink power balance line means that the UE is on the uplink power balance line 1 with the same power to the macro.
  • the cellular base station and the micro cell base station transmit signals, and the macro cell base station and the micro cell base station receive the same signal power.
  • the so-called downlink balance line means that the macro cell base station and the micro cell base station send signals to the UE with different powers, and the UE is in downlink power.
  • the soft handoff area refers to the area between the soft handoff boundary line 3 and the soft handoff boundary line 4. Both the macro cell base station and the micro cell base station can control the UE in the soft handoff area. .
  • the serving cell of the user is divided by the downlink power balance line. Therefore, when the user is in the area between the uplink power balance line i and the soft handover boundary line 3 in FIG. 1, the serving cell of the UE is a macro cell base station, but is in this area.
  • the uplink transmission signal of the UE causes a large interference to the micro cell base station.
  • a first aspect of the present invention provides an interference control method, including:
  • the power control signal is sent to the interfering UE.
  • the method further includes: before receiving the detection signal sent by the UE in the first area, the method further includes:
  • Determining, according to the detection signal, whether the UE is an interfering UE includes:
  • the demodulating reference information including:
  • Demodulating the detection signal by using the demodulation reference information comprising: performing descrambling processing on the detection signal by using the first scrambling code;
  • the demodulation reference information includes:
  • Demodulating the detection signal by using the demodulation reference information comprising: performing descrambling processing on the detection signal by using the first scrambling code;
  • the demodulation reference information includes:
  • the specific implementation is: before the sending the power control signal to the interfering UE, the method further includes:
  • the sending the power control signal to the interfering UE includes:
  • the modulated power control signal is transmitted to the interfering UE.
  • the modulation reference information including:
  • modulating the power control signal by using the modulation reference information comprising: modulating the power control information by using the signature sequence;
  • modulation reference information includes:
  • modulating the power control signal by using the modulation reference information comprising: modulating the power control information by using the signature sequence;
  • the modulation reference information includes:
  • modulating the power control signal by using the modulation reference information comprising: modulating the power control information by using the signature sequence;
  • the modulation reference information includes:
  • the sending the power control signal to the interfering UE includes:
  • the modulating the power control signal by using the modulation reference information comprising: modulating the power control information by using the signature sequence; And performing the spreading processing on the power control signal after the modulation processing by using the second spreading code; and performing scrambling processing on the power control signal after the spreading processing by using the second scrambling code;
  • the specific implementation is: determining, according to the detection signal, whether the UE is an interfering UE, including:
  • the specific implementation is as follows: the receiving the detection signal sent by the user equipment UE in the first area, including:
  • Determining, according to the detection signal, whether the UE is an interfering UE includes:
  • the sending the power control signal to the interfering UE includes:
  • a second aspect of the present invention provides an interference control method, including:
  • the UE in the first area sends a detection signal to the base station, where the first area is the uplink power level, the UE receives the power control signal sent by the micro base station according to the detection signal, and the UE is configured according to the power control signal. Perform power control processing.
  • the specific implementation is as follows: Before the UE in the first area sends the detection signal to the micro base station, the method further includes:
  • the detection signal is obtained by using the modulation reference information.
  • the modulation reference information includes:
  • modulation reference information includes:
  • modulation reference information includes:
  • the first scrambling code, the first spreading code, the detection signal content information, and the detection signal location information; the UE in the first area sending the detection signal to the micro base station includes:
  • the method further includes: before the receiving, by the UE, the power control signal sent by the micro base station according to the detection signal, the method further includes:
  • Receiving the power control signal sent by the micro base station according to the detection signal comprising: performing demodulation processing on the power control signal by using the demodulation reference information;
  • the UE performs power control processing according to the power control signal, and includes:
  • the UE performs power control processing according to the power control signal after the demodulation processing.
  • the specific implementation is: the demodulation reference information, including: Signature sequence
  • performing demodulation processing on the power control signal by using the demodulation reference information including: performing coherent demodulation processing on the power control information by using the signature sequence;
  • the demodulation reference information includes:
  • demodulation processing on the power control signal by using the demodulation reference information including: despreading the power control signal by using the second spreading code;
  • the demodulation reference information includes:
  • performing demodulation processing on the power control signal by using the demodulation reference information including: performing descrambling processing on the power control signal by using the second scrambling code;
  • the demodulation reference information includes:
  • Receiving the power control signal sent by the micro base station according to the detection signal comprising: receiving, at a resource location corresponding to the location information of the power control signal, a power control signal sent by the micro base station according to the detection signal ;
  • performing demodulation processing on the power control signal by using the demodulation reference information including: performing descrambling processing on the power control signal by using the second scrambling code;
  • the specific implementation is: the detecting the signal, including:
  • Auxiliary dedicated physical control channel S-DPCCH signal or Dedicated physical control channel DPCCH signal.
  • a third aspect of the present invention provides a micro base station, including:
  • a receiving module configured to receive a detection signal sent by a user equipment UE in the first area, the domain
  • a determining module configured to determine, according to the detection signal, whether the UE is an interfering UE
  • a sending module configured to send a power control signal to the interfering UE.
  • the receiving module is further configured to: receive, by using a radio network controller, a demodulation reference information sent by a RNC;
  • the determining module includes: a processing unit and a determining unit, where
  • the processing unit is configured to perform demodulation processing on the detection signal by using the demodulation reference information
  • the determining unit is configured to determine, according to the demodulated processed detection signal, whether the UE is an interfering UE.
  • the demodulating reference information including:
  • the processing unit is specifically configured to: perform descrambling processing on the detection signal by using the first scrambling code; and perform coherent demodulation on the descrambling detection signal by using the content information of the detection signal; or
  • the demodulation reference information includes:
  • the processing unit is specifically configured to: perform descrambling processing on the detection signal by using the first scrambling code; and perform despreading processing on the descrambling processed detection signal by using the first spreading code; Performing coherent demodulation on the despread processing signal by using the detection signal content information;
  • the demodulation reference information includes:
  • the receiving module is specifically configured to receive the detection signal at a resource location corresponding to the detection signal location information;
  • the processing unit is specifically configured to: perform descrambling processing on the detection signal by using the first scrambling code; and perform despreading processing on the descrambling processed detection signal by using the first spreading code; Use The detection signal content information is coherently demodulated on the despread processing signal.
  • the specific implementation is: the receiving module is further configured to receive modulation reference information sent by the RNC;
  • the processing unit is specifically configured to: perform modulation processing on the power control signal by using the modulation reference information;
  • the sending module is specifically configured to send a modulated power control signal to the interfering UE.
  • the modulation reference information including:
  • the processing unit is specifically configured to perform modulation processing on the power control information by using the signature sequence.
  • modulation reference information includes:
  • the processing unit is specifically configured to: perform modulation processing on the power control information by using the signature sequence; and perform spreading processing on the modulated power control signal by using the second spreading code;
  • modulation reference information includes:
  • the processing unit is specifically configured to: perform modulation processing on the power control information by using the signature sequence; and perform spreading processing on the modulated power control signal by using the second spreading code; And performing the scrambling process on the power control signal after the spread processing by using the second scrambling code;
  • modulation reference information includes:
  • the sending module is specifically configured to send the power control signal at a resource location corresponding to the location information of the power control signal
  • the processing unit is specifically configured to: perform modulation processing on the power control information by using the signature sequence; and perform spreading processing on the modulated power control signal by using the second spreading code; Using the second scrambling code to scramble the power-converted power control signal Reason.
  • the specific implementation is: the detecting the signal, including:
  • the determining unit is specifically configured to: determine a signal to noise ratio of the detection signal; if the signal to noise ratio is greater than a preset value, determine The UE is an interfering UE.
  • the receiving module is further configured to: receive, by the receiving module, the detection signals sent by the at least two UEs in the first area;
  • the determining module is further configured to determine, according to the detection signal, that the number of interference UEs in the at least two UEs exceeds half of the number of the at least two UEs;
  • the sending module is further configured to send a power control signal to the at least two UEs.
  • a fourth aspect of the present invention provides a user equipment, including:
  • a sending module configured to send a detection signal to the micro base station
  • a receiving module configured to receive a power control signal sent by the micro base station according to the detection signal
  • a processing module configured to perform power control processing according to the power control signal
  • the receiving module is further configured to: receive, by using a radio network controller, an RNC, the modulation reference information;
  • the processing module is further configured to: use the modulation reference information to obtain the detection signal.
  • the modulation reference information includes:
  • the processing module is specifically configured to: use the first scrambling code to perform scrambling processing on the content information of the detection signal to obtain the detection signal;
  • modulation reference information includes:
  • the processing module is specifically configured to: use the first spreading code to perform spreading processing on the content information of the detection signal; and use the first scrambling code to perform content of the detection signal after the spreading processing Letter Performing scrambling processing to obtain the detection signal;
  • modulation reference information includes:
  • the sending module is specifically configured to send a detection signal to the micro base station at a resource location corresponding to the detection signal location information;
  • the processing module is specifically configured to: use the first spreading code to perform spreading processing on the content information of the detection signal; and use the first scrambling code to perform content of the detection signal after the spreading processing The information is scrambled to obtain the detection signal.
  • the specific implementation is: the receiving module is further configured to receive demodulation reference information sent by the RNC;
  • the processing module is further configured to: perform demodulation processing on the power control signal by using the demodulation reference information;
  • the receiving module is specifically configured to receive the demodulated power control signal; the processing module is specifically configured to perform power control processing according to the demodulated power control signal.
  • the demodulating reference information including:
  • the processing module is specifically configured to perform coherent demodulation processing on the power control information by using the signature sequence
  • the demodulation reference information includes:
  • the processing module is specifically configured to: perform despreading processing on the power control signal by using the second spreading code; and perform coherent solution on the power control signal after the despreading process by using the signature sequence Adjustment process
  • the demodulation reference information includes:
  • the processing module is specifically configured to: perform descrambling processing on the power control signal by using the second scrambling code; and perform, by using the second spreading code, on the power control signal after the descrambling process despreading processing; using the signature sequence to perform coherent solution on the despreading power control signal Adjustment process
  • the demodulation reference information includes:
  • the receiving module is configured to receive, at a resource location corresponding to the location information of the power control signal, a power control signal that is sent by the micro base station according to the detection signal;
  • the processing module is specifically configured to: perform descrambling processing on the power control signal by using the second scrambling code; and perform, by using the second spreading code, on the power control signal after the descrambling process a despreading process; performing a coherent demodulation process on the despread processed power control signal by using the signature sequence;
  • the specific implementation is: the detecting the signal, including:
  • a fifth aspect of the present invention provides a micro base station, including:
  • a receiver configured to receive a detection signal sent by the user equipment UE in the first area, where the first processor is further configured to determine, according to the detection signal, whether the UE is an interference UE;
  • a transmitter configured to send a power control signal to the interfering UE.
  • the specific implementation is: the receiver is further configured to receive demodulation reference information sent by a radio network controller RNC;
  • the processor is further configured to perform demodulation processing on the detection signal by using the demodulation reference information
  • the processor is specifically configured to determine, according to the demodulated processed detection signal, whether the UE is an interfering UE.
  • the specific implementation is: the demodulating the reference information, including:
  • the processor is specifically configured to: perform descrambling processing on the detection signal by using the first scrambling code; and perform coherent demodulation on the descrambling processed detection signal by using the content information of the detection signal;
  • the demodulation reference information includes:
  • the processor is specifically configured to: perform descrambling processing on the detection signal by using the first scrambling code; and perform despreading processing on the descrambling processed detection signal by using the first spreading code; Performing coherent demodulation on the despread processing signal by using the detection signal content information;
  • the demodulation reference information includes:
  • the processor is specifically configured to: perform descrambling processing on the detection signal by using the first scrambling code; and perform despreading processing on the descrambling processed detection signal by using the first spreading code; The coherent demodulation of the despread processed detection signal is performed by using the detection signal content information.
  • the specific implementation is: the receiver is further configured to receive modulation reference information sent by the RNC;
  • the processor is further configured to perform modulation processing on the power control signal by using the modulation reference information.
  • the method is specifically implemented as: , including:
  • the processor is specifically configured to: use the signature sequence to perform modulation processing on the power control information;
  • modulation reference information includes:
  • the processor is specifically configured to perform modulation processing on the power control information by using the signature sequence, and perform spreading processing on the modulated power control signal by using the second spreading code.
  • modulation reference information includes:
  • the processor is specifically configured to: adjust the power control information by using the signature sequence Processing, using the second spreading code, performing frequency-spreading processing on the modulated power control signal; using the second scrambling code, adding the power control signal after the spreading processing Or the modulation reference information, or the modulation reference information, including:
  • the transmitter is specifically configured to send the power control signal at a resource location corresponding to the location information of the power control signal
  • the processor is specifically configured to: perform modulation processing on the power control information by using the signature sequence; and perform spreading processing on the modulated power control signal by using the second spreading code; And using the second scrambling code to perform scrambling processing on the spread control power control signal.
  • the detecting the signal including:
  • the specific implementation is: the processor is specifically configured to determine a signal to noise ratio of the detection signal; and if the signal to noise ratio is greater than a preset value, determine The UE is an interfering UE.
  • the method is further configured to: receive, by the receiver, a detection signal sent by at least two UEs in the first area;
  • the processor is further configured to determine, according to the detection signal, interference in the at least two UEs
  • the number of UEs exceeds half of the number of the at least two UEs
  • the transmitter is further configured to send a power control signal to the at least two UEs.
  • a sixth aspect of the present invention provides a user equipment, including:
  • a transmitter configured to send a detection signal to the micro base station
  • a receiver configured to receive a power control signal sent by the micro base station according to the detection signal
  • a processor configured to perform power control processing according to the power control signal
  • the specific implementation is: the receiver is further configured to receive modulation reference information sent by a radio network controller RNC;
  • the processor is further configured to: use the modulation reference information to obtain the detection signal.
  • Reference information includes:
  • the processor is specifically configured to: use the first scrambling code to perform scrambling processing on the content information of the detection signal to obtain the detection signal;
  • modulation reference information includes:
  • the processor is specifically configured to: perform frequency-spreading processing on the content information of the detection signal by using the first spreading code; and use the first scrambling code to perform content of the detection signal after the spreading processing The information is scrambled to obtain the detection signal;
  • modulation reference information includes:
  • the transmitter is specifically configured to send a detection signal to the micro base station at a resource location corresponding to the detection signal location information;
  • the processor is specifically configured to: perform frequency-spreading processing on the content information of the detection signal by using the first spreading code; and use the first scrambling code to perform content of the detection signal after the spreading processing The information is scrambled to obtain the detection signal.
  • the specific implementation is: the receiver is further configured to receive demodulation reference information sent by the RNC;
  • the processor is further configured to: perform demodulation processing on the power control signal by using the demodulation reference information;
  • the receiver is specifically configured to receive the power control signal after the demodulation process
  • the processor is specifically configured to perform power control processing according to the demodulated power control signal.
  • the demodulating reference information including:
  • the processor is specifically configured to perform a coherent demodulation process on the power control information by using the signature sequence
  • the demodulation reference information includes:
  • the processor is specifically configured to perform despreading processing on the power control signal by using the second spreading code; and performing coherent solution on the power control signal after the despreading process by using the signature sequence Adjustment process
  • the demodulation reference information includes:
  • the processor is specifically configured to: perform descrambling processing on the power control signal by using the second scrambling code; and use the second spreading code to perform power processing on the descrambled power control signal a despreading process; performing a coherent demodulation process on the despread processed power control signal by using the signature sequence;
  • the demodulation reference information includes:
  • the receiver is specifically configured to receive, at a resource location corresponding to the location information of the power control signal, a power control signal sent by the micro base station according to the detection signal;
  • the processor is specifically configured to: perform descrambling processing on the power control signal by using the second scrambling code; and use the second spreading code to perform power processing on the descrambled power control signal a despreading process; performing a coherent demodulation process on the despread processed power control signal by using the signature sequence;
  • the specific implementation is: the detecting the signal, including:
  • a seventh aspect of the present invention provides an interference control system, including the above-mentioned micro base station, and the user equipment, wherein the base station is wirelessly connected to the user equipment.
  • the interference control method, device, and system provided by the embodiment of the present invention, by receiving a detection signal sent by the UE in the first area, determining whether the UE is an interfering UE according to the detection signal, realizing the determination of the interfering UE by the micro base station, and The power control signal is sent to the interfering UE, so that the interfering UE reduces the transmission power, thereby reducing interference caused by the interfering UE to the micro base station.
  • FIG. 1 is a schematic diagram of an uplink and downlink power balance line in the prior art
  • Embodiment 1 of an interference control method according to the present invention
  • Embodiment 2 is a schematic flowchart of Embodiment 2 of an interference control method according to the present invention.
  • FIG. 5 is a schematic flowchart of Embodiment 4 of an interference control method according to the present invention.
  • Embodiment 5 is a schematic flowchart of Embodiment 5 of an interference control method according to the present invention.
  • Embodiment 7 is a schematic structural diagram of Embodiment 1 of a micro base station according to the present invention.
  • Embodiment 8 is a schematic structural diagram of Embodiment 2 of a micro base station according to the present invention.
  • Embodiment 9 is a schematic structural diagram of Embodiment 1 of a user equipment according to the present invention.
  • Embodiment 3 of a base station according to the present invention is a schematic structural diagram of Embodiment 3 of a base station according to the present invention.
  • Embodiment 11 is a schematic structural diagram of Embodiment 2 of a user equipment according to the present invention.
  • FIG. 12 is a schematic structural diagram of an embodiment of an interference control system according to the present invention.
  • the technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. example. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.
  • Embodiment 1 of an interference control method according to the present invention. As shown in FIG. 2, the method in this embodiment includes:
  • S201 Receive a detection signal sent by the user equipment UE in the first area, where the first area is upper, and the first area is a soft handover area between the uplink power balance line 1 and the downlink power parallel line 2 in FIG.
  • the outer area, the soft handover area is composed of the boundary line 3 and the boundary line 4, and the macro cell base station and the micro cell base station can control the UE in the soft handover area, and the downlink power is flat.
  • the micro base station serves as the primary serving cell of the UE, and between the downlink power balance line 2 and the boundary line 3, the macro base station serves as the primary serving cell of the UE, and the embodiment of the present invention is mainly directed to the first The area (between the uplink power balance line 1 and the boundary line 3) performs power control on the UE causing interference to the micro base station.
  • the detection signal is sent to the micro base station, and the micro base station receives the detection signal sent by the UE in the first area.
  • S202 Determine, according to the detection signal, whether the UE is an interfering UE; if yes, execute S203, if no, execute S204.
  • the micro base station After receiving the detection signal sent by the UE, the micro base station determines whether the UE is an interfering UE according to the demodulated detection signal, for example, by comparing whether the signal to noise ratio of the detection signal is greater than a preset value, and if yes, determining to send the detection signal.
  • the UE is an interfering UE, and if not, the UE transmitting the detection signal is not an interfering UE.
  • the quality of the received detection signal is measured by other indicators, and the interference level of the UE to the micro base station is obtained by the received detection signal to determine whether the UE is an interference UE; if yes, execute S203, if not, execute S204.
  • S203 Send a power control signal to the interfering UE.
  • the power control signal is sent to the interfering UE, so that the interfering UE reduces the transmission power, thereby reducing the interference caused by the UE to the micro base station.
  • the power control signal is not sent to the UE, or the signal that maintains the original power is sent to the UE.
  • any signal processing that allows the UE to maintain the original power is Can be treated as other.
  • the interfering UE by receiving the detection signal sent by the user equipment UE in the first area, determining whether the UE is an interfering UE according to the detection signal, determining the interfering UE by the micro base station, and transmitting power control to the interfering UE according to the detection signal
  • the signal is such that the interfering UE reduces the transmission power, thereby reducing interference caused by the interfering UE to the micro base station.
  • FIG. 3 is a schematic flowchart of Embodiment 2 of an interference control method according to the present invention. As shown in FIG. 3, the method in this embodiment includes:
  • S301 Receive demodulation reference information sent by the radio network controller RNC.
  • S301 is a step that is available before S201 shown in FIG. 2, and the micro base station receives the RNC.
  • the transmitted demodulation reference information demodulates the detection signal sent by the UE in the first area. It is to be noted that the demodulation reference information can be obtained by the micro base station in other manners.
  • the embodiment of the present invention takes the demodulation reference information sent by the RNC as an example.
  • S302 Receive a detection signal sent by a UE in the first area.
  • the detection signal may be a preamble preamble signal, or a secondary Dedicated Physical Control CHANNE (hereinafter referred to as S-DPCCH) signal; or a DPCCH signal.
  • S-DPCCH secondary Dedicated Physical Control CHANNE
  • S303 Demodulate the detection signal by using a demodulation reference signal.
  • the demodulation reference information may include: first type information or second type information or third type information, where the first type information includes: a first scrambling code and detection signal content information.
  • the first scrambling code is used for scrambling processing
  • the micro base station receives the scrambled detection signal, and uses the first scrambling code to perform descrambling processing on the detection signal;
  • the signal content information is subjected to coherent demodulation of the descrambled detection signal.
  • the second type of information includes: a first scrambling code, a first spreading code, and detection signal content information.
  • the first spreading code is used for spreading
  • the first scrambling code is used for scrambling processing.
  • the micro base station receives the detection signal after the spread spectrum scrambling processing, the first The first scrambling code is used to descramble the detection signal; then, the first spreading code is used to despread the detected signal after descrambling; finally, the content information of the detection signal is used to solve the solution
  • the spread detection signal is subjected to coherent demodulation.
  • the third type of information includes: a first scrambling code, a first spreading code, detection signal content information, and detection signal location information;
  • the UE sends a detection signal to the micro base station at the resource location corresponding to the detection signal location information according to the detection signal location information, and uses the first spreading code to spread the detection signal, and uses the first scrambling code to scramble the detection signal.
  • the first scrambling code in the first type information or the second type information or the third type information can uniquely identify the UE, that is, each UE in the first area corresponds to a unique first scrambling code.
  • S304 Determine, according to the detection signal, whether the UE is an interfering UE; Specifically, after demodulating the detection signal by using the demodulation reference information, it is determined whether the UE is an interfering UE according to the demodulated processing detection signal.
  • the signal-to-noise ratio of the received detection signal if the signal-to-noise ratio of the detection signal is greater than a preset value, determining that the UE is an interfering UE, that is, when the signal-to-noise ratio is larger, indicating that the UE interferes with the micro base station.
  • S305 Receive a modulation reference signal sent by the RNC.
  • S305 can be used before S203 shown in FIG. 2.
  • S306 Modulate the power control signal by using modulation reference information.
  • the modulation reference information includes the fourth type information or the fifth type information or the sixth type information or the seventh type information.
  • the fourth type of information includes: a signature sequence.
  • the base station uses a signature sequence to modulate the power control information.
  • the fifth type of information includes: a signature sequence and a second spreading code.
  • the base station uses a signature sequence to perform modulation processing on the power control information; and uses the second spreading code to perform spreading processing on the modulated power control signal.
  • the sixth type of information includes: a signature sequence, a second spreading code, and a second scrambling code.
  • the base station uses the signature sequence to modulate the power control information; ⁇ uses the second spreading code to perform spreading processing on the modulated power control signal; ⁇ uses the second scrambling code to perform power after the spread spectrum processing The control signal is scrambled.
  • the seventh type of information includes: a signature sequence, a second spreading code, a second scrambling code, and power control signal position information.
  • the micro base station transmits a power control signal at a resource location corresponding to the power control signal location information; modulating the power control information by using a signature sequence; and using the second spreading code to perform the modulated power control signal Spreading processing; ⁇ Using the second scrambling code, scrambling the power control signal after the spread spectrum processing.
  • the fourth type of information or the fifth type of information or the sixth type of information or the seventh type of information has a uniquely identified UE, that is, each UE uniquely corresponds to one signature sequence.
  • S307 Send the modulated power control signal to the interfering UE.
  • the micro base station sends the power control signal modulated in S306 to the interfering UE determined in S304, where the power control signal may be a relative grant-down (relative grant-down,
  • the RG-down command is used to reduce the transmission power of the interfering UE and reduce the interference of the interfering UE to the micro base station.
  • the demodulation reference signal is used to perform demodulation processing on the received detection signal sent by the UE in the first region, thereby determining whether the UE is an interfering UE, according to
  • the modulation reference information sent by the RNC is received, and the power control signal modulated by the modulation reference information is sent to the interfering UE, so that the interfering UE reduces the transmission power and reduces the interference of the interfering UE to the micro base station.
  • FIG. 4 is a schematic flowchart of Embodiment 3 of an interference control method according to the present invention.
  • the micro base station in FIG. 3 determines, according to the received detection signal of each UE, whether the UE is an interfering UE, and is directed to interference.
  • the UE sends a power control signal, that is, the power control signal has a one-to-one relationship with the UE
  • FIG. 4 is that the micro base station determines the number of interfering UEs according to the received detection signals of all UEs, and further determines whether to transmit power to all interfering UEs.
  • the control signal that is, the power control signal has a one-to-many relationship with the UE. Specific steps are as follows:
  • S401 Receive a detection signal sent by at least two UEs in the first area.
  • Two or more UEs are included in the first area, and the micro base station receives detection signals transmitted by two or more UEs in the first area.
  • S402 Determine, according to the detection signal, that the number of interfering UEs in the at least two UEs exceeds half of the number of the at least two UEs, and then perform S403.
  • the micro base station receives the detection signals sent by the 8 UEs, and determines, according to the detection signals sent by each UE, the number of interfering UEs in the 8 UEs exceeds 4, that is, the number of interfering UEs. When it is 5 or 6 or 7 or 8, S403 is executed.
  • S403 Send a power control signal to at least two UEs.
  • the power control signal when determining, according to the detection signal sent by each UE, that the number of interfering UEs in at least two UEs exceeds half of the number of at least two UEs, for example, in an example in S403, sending to eight UEs in the first region.
  • Power control signal So that all UEs in the first area reduce the transmission power according to the power control signal, and reduce the interference to the micro base station.
  • the power control signal may be a common common RG-down command, that is, all the UEs reduce the transmission power by using one power control signal, thereby saving downlink code channel resources.
  • FIG. 5 is a schematic flowchart of Embodiment 4 of an interference control method according to the present invention.
  • the method in this embodiment includes: S501: The UE in the first area sends a detection signal to the base station, where the first area is the uplink power, and the first area is the soft switching area between the uplink power balance line 1 and the downlink power parallel line 2 in FIG.
  • the outer area, the soft handover area is composed of the boundary line 3 and the boundary line 4, and the macro cell base station and the micro cell base station can control the UE in the soft handover area, between the downlink power balance line 2 and the boundary line 4,
  • the base station serves as the primary serving cell of the UE
  • the macro base station serves as the primary serving cell of the UE between the downlink power balance line and the boundary line 3.
  • the embodiment of the present invention is mainly directed to the first area (between the uplink power balance line and the boundary line 3)
  • the UE that performs interference to the micro base station performs power control.
  • the UE in the first area sends a detection signal to the micro base station to enable the micro base station to determine whether the UE is an interfering UE according to the detection signal.
  • S502 The UE receives a power control signal sent by the micro base station according to the detection signal.
  • the micro base station determines that the UE is an interfering UE, it sends a power control signal to the interfering UE, and the UE receives the power control signal sent by the micro base station according to the detection signal.
  • S503 The UE performs power control processing according to the power control signal.
  • the UE After receiving the power control signal sent by the micro base station, the UE performs power control processing according to the power control signal, so that the interference of the UE to the micro base station is reduced.
  • the UE in the first area sends a detection signal to the micro base station, so that the micro base station can determine whether the UE is an interfering UE, and the UE receives the power control signal sent by the micro base station, and performs power control processing according to the power control signal. So that the interference of the UE to the micro base station is reduced.
  • FIG. 6 is a schematic flowchart of Embodiment 5 of the interference control method according to the present invention. As shown in FIG. 6, the method in this embodiment includes:
  • S601 Receive modulation reference information sent by the radio network controller RNC.
  • S601 is a step that may be performed before S501 shown in FIG. 5.
  • the UE in the first area receives the modulation reference information sent by the RNC, and sends the detection signal obtained by using the modulation reference information modulation to the micro base station.
  • the UE can obtain the demodulation reference information in other manners.
  • the embodiment of the present invention takes the demodulation reference information sent by the RNC as an example.
  • the modulation reference information may include: first type information or second type information or third The class information information, wherein the first type of information packet includes: the first first scrambling code and the content of the content of the detection and detection signal. .
  • the first first interference code code is used to detect the content of the detection signal signal number.
  • the information of the information is processed into the line plus the disturbance processing, and the signal number of the detected test signal is obtained.
  • the pico base station receives and receives the signal value of the detection and detection signal
  • the first first interference code code is used, and the signal of the detection and detection signal is processed to solve the disturbance; ⁇ Detecting the content of the information in the signal signal number of the test signal, and performing phase-coherent dry-demodulation on the detection signal signal number 55 after the processing of the solution.
  • the second type II class information information packet includes: a first first scrambling code code, a first first spreading frequency code code, and a content detection information information in the detection detection signal signal number.
  • the first first spreading and spreading code code is used to perform the content information of the content in the detection and detection signal signal. Spreading and spreading at a frequency, and using the first first scrambling code code to perform processing on the content of the content of the detection and detection signal after processing the spread frequency After adding the disturbance to the processing, the obtained test signal signal number is obtained. .
  • the pico base station When the pico base station receives and receives the signal value of the detection and detection signal, the first first, first, first, and the first first interference code is used, and the number 1100 of the detection and detection letter is solved. De-scrambling processing;; then, after using the first spreading code code, the solution of the detection signal signal after processing the disturbance is processed. De-spreading and processing;; Finally, after using the test to detect the content of the information in the signal signal, the detection and detection signal number after processing the solution The line phase coherent dry demodulation is performed. .
  • the third type of class information information packet includes: a first first scrambling code code, a first first spreading frequency code code, and a content information information and a check in the detection and detection signal signal number. Detect the signal position of the signal signal. .
  • UUEE root sends and sends to the pico base station based on the position information of the detected signal position of the test signal at the position of the source of the resource at the location of the test signal. Detecting the signal value of the test signal, and using the first spread code code to perform the processing of the content of the content of the test signal in the test signal, and expand and spread the frequency, ⁇ The first and second scrambling code codes are used to perform processing on the content of the information in the content of the detection and detection signal after the processing of the spread spectrum frequency, and the processing is performed. Signal signal number. .
  • the pico base station stands at the position of the resource source position corresponding to the confidence information of the position of the detection and detection signal signal, and receives the signal value of the detection detection signal; If the code code is disturbed one by one, the processing of the signal value of the detection and detection signal is processed to solve the disturbance; and the first first spread spectrum code code is used, and the processing of the disturbance is solved. After the test and test letter
  • No. 2200 enters the line to solve the expansion and processing;; ⁇ Use the test to detect the content of the information in the signal signal, and the detection and detection of the solution after the solution
  • the signal number is subjected to phase coherent dry demodulation. .
  • the first first scrambling code can be in the first type of information information or the second type 2 information information or the third type 3 information information.
  • the unique first identifier identifies the UUEE, that is, the first first scrambling code corresponding to each UUEE pair that is located in the first one-region area. .
  • SS660033 The UUEE in the first area of the first area sends a transmission detection detection signal signal number to the station of the pico base station. .
  • the UUEE in the first area of the first area sends a transmission reference signal to the pico base station, and obtains the obtained detection signal signal number, and the obtained detection signal number,
  • the base station receives and receives the received detection signal signal number, and the root determines whether the UUEE is the interference interference UUEE according to the detected detection signal signal number. .
  • the detection signal signal number can be regarded as the front pre-guided pprreeaammbbllee signal signal number, or the auxiliary auxiliary special-purpose physical physical control control signaling channel channel ((SSeeccoonnddaarryy DDeeddiiccaatteedd PPhhyyssiiccaall CCoonnttrrooll CCHHaannnnee,, by the following abbreviated name, SS--DDPPCCCCHH)) signal signal number;; or DDPPCCCCHH signal number.
  • SS--DDPPCCCCCCHH auxiliary auxiliary special-purpose physical physical control control signaling channel channel
  • S605 Demodulate the power control signal by using demodulation reference information.
  • the demodulation reference information includes the fourth type information or the fifth type information or the sixth type information or the seventh type information.
  • the fourth type of information includes: a signature sequence.
  • the micro base station uses a signature sequence to modulate the power control information, and the UE performs coherent demodulation processing on the power control information according to the signature sequence.
  • the fifth type of information includes: a signature sequence and a second spreading code.
  • the base station uses a signature sequence to perform modulation processing on the power control information; and uses the second spreading code to perform spreading processing on the modulated power control signal.
  • the UE despreads the power control signal according to the second spreading code, and uses the signature sequence to perform coherent demodulation processing on the despread power control signal.
  • the sixth type of information includes: a signature sequence, a second spreading code, and a second scrambling code;
  • the base station uses the signature sequence to modulate the power control information; ⁇ uses the second spreading code to perform spreading processing on the modulated power control signal; ⁇ uses the second scrambling code to spread the processed power
  • the control signal is scrambled.
  • the UE uses the second scrambling code to perform descrambling processing on the power control signal; ⁇ despreading the power control signal after descrambling using the second spreading code; using the signature sequence, after despreading
  • the power control signal is subjected to coherent demodulation processing.
  • the seventh type of information includes: a signature sequence, a second spreading code, a second scrambling code, and power control signal position information;
  • the micro base station transmits a power control signal at a resource location corresponding to the power control signal location information; modulating the power control information by using a signature sequence; and using the second spreading code to perform the modulated power control signal Spreading processing; ⁇ Using the second scrambling code, scrambling the power control signal after the spread spectrum processing.
  • the UE receives the power control signal sent by the micro base station according to the detection signal at the resource location corresponding to the power control signal location information; the descrambling process is performed on the power control signal by using the second scrambling code; and the second spreading code is used, Despreading the power control signal after the descrambling process; using the signature sequence to perform coherent demodulation processing on the despread power control signal.
  • S606 The UE performs power control processing according to the demodulated power control signal.
  • the UE demodulates The processed power control signal is an RG-down command.
  • the UE demodulated power control signal may be a common RG-down command.
  • the UE performs power control processing according to the demodulated power control signal to reduce interference of the UE to the micro base station.
  • the UE in the first area receives the modulation reference information sent by the radio network controller RNC, uses the modulation reference information, obtains the detection signal, and sends a detection signal to the micro base station, so that the micro base station determines according to the detection signal.
  • the UE is an interfering UE, to determine whether to send a power control signal to the UE, and the UE in the first area performs demodulation processing on the power control signal by receiving demodulation reference information sent by the RNC and using demodulation reference information.
  • the processed power control signal is adjusted to perform power control processing to reduce the transmission power of the UE and reduce the interference of the UE to the micro base station.
  • FIG. 7 is a schematic structural diagram of Embodiment 1 of the present invention.
  • the micro base station in this embodiment includes a receiving module 71, a determining module 72, and a sending module 73, where the receiving module 71 is configured to receive the first area.
  • the detection signal sent by the user equipment UE in the first area is an uplink power level detection signal to determine whether the UE is an interfering UE.
  • the sending module 73 is configured to send a power control signal to the interfering UE.
  • the device in the embodiment of the present invention can be used to implement the technical solution of the method embodiment shown in FIG. 2, and the implementation principle and technical effects are similar, and details are not described herein again.
  • FIG. 8 is a schematic structural diagram of Embodiment 2 of a micro base station according to the present invention. As shown in FIG. 8, FIG. 8 is based on the embodiment shown in FIG. 7. Further, the receiving module 71 is further configured to receive, by the radio network controller, the RNC. Demodulation reference information.
  • the determining module 72 further includes a processing unit 721 and a determining unit 722, wherein the processing unit 721 is configured to perform demodulation processing on the detection signal by using demodulation reference information, and the determining unit 722 is configured to perform demodulation processing.
  • the signal is detected to determine whether the UE is an interfering UE.
  • the processing unit 721 is specifically configured to: use the first scrambling code to perform descrambling processing on the detection signal; And performing coherent demodulation on the descrambling detection signal.
  • the processing unit 721 is specifically configured to: use the first scrambling code to perform descrambling processing on the detection signal; ⁇ Using the first spreading code to despread the detected signal after descrambling processing; The signal content information is measured, and the demodulated detection signal is coherently demodulated.
  • the receiving module 71 When the demodulation reference information received by the receiving module 71 includes the first scrambling code, the first spreading code, the detection signal content information, and the detection signal location information, the receiving module 71 is specifically configured to use the resource location corresponding to the detection signal location information.
  • the processing unit 721 is specifically configured to perform a descrambling process on the detection signal by using the first scrambling code; and despreading the detection signal after the descrambling process by using the first spreading code; The signal content information is detected, and the demodulated detection signal is coherently demodulated.
  • the receiving module 71 is further configured to receive the modulation reference information sent by the RNC.
  • the processing unit 721 is further configured to: use the modulation reference information to perform modulation processing on the power control signal; Specifically, the method is used to send a modulated power control signal to the interfering UE.
  • the processing unit 721 is specifically configured to use the signature sequence to perform modulation processing on the power control information.
  • the processing unit 721 is specifically configured to perform a modulation process on the power control information by using a signature sequence, and use a second spreading code. Spreading processing is performed on the modulated power control signal.
  • the processing unit 721 is specifically configured to: use the signature sequence to perform modulation processing on the power control information;
  • the second spreading code performs spreading processing on the modulated power control signal; and
  • the second scrambling code is used to perform scrambling processing on the power control signal after the spread processing.
  • the sending module 73 is specifically configured to use resources corresponding to the power control signal location information. At a position, transmitting a power control signal;
  • the processing unit 721 is specifically configured to: use a signature sequence to perform modulation processing on the power control information; use a second spreading code to perform a spreading process on the modulated power control signal; and use a second scrambling code to spread the frequency
  • the processed power control signal is subjected to scrambling processing.
  • the detection signals sent or received by the above modules include a preamble preamble; or an S-DPCCH signal; or a DPCCH signal.
  • the determining unit 722 is specifically configured to determine a signal to noise ratio of the detection signal; if the signal to noise ratio is greater than a preset value, determine that the UE is an interfering UE.
  • the sending module 73 sends the power control signal modulated by the same modulation reference signal to the UE in the first area
  • the receiving module 72 is further configured to receive the detection signal sent by the at least two UEs in the first area; the determining module 722 further And determining, according to the detection signal, that the number of interfering UEs in the at least two UEs exceeds half of the number of the at least two UEs; the sending module 73 is further configured to send the power control signal to the at least two UEs.
  • the device in the embodiment of the present invention can be used to implement the technical solution of the method embodiment shown in FIG. 3 or FIG. 4, and the implementation principle and technical effects are similar, and details are not described herein again.
  • FIG. 9 is a schematic structural diagram of Embodiment 1 of a user equipment according to the present invention.
  • the user equipment in this embodiment includes a sending module 91, a receiving module 92, and a processing module 93, where the sending module 91 is configured to send to the micro base station.
  • the receiving module 92 is configured to receive a power control signal sent by the micro base station according to the detection signal, and the processing module 93 is configured to perform power control processing according to the power control signal.
  • the device in the embodiment of the user equipment can be used to implement the technical solution of the method embodiment shown in FIG. 5, and the implementation principle and the technical effect are similar, and details are not described herein again.
  • the receiving module 92 is further configured to receive modulation reference information sent by the radio network controller RNC.
  • the processing module 93 is further configured to use the modulation reference information to obtain the detection signal.
  • the processing module 93 is specifically configured to use the first scrambling code to perform scrambling processing on the content information of the detection signal to obtain detection. signal.
  • the processing module 93 is specifically configured to use the first spreading code to detect the signal content information. Performing a spread spectrum process; using the first scrambling code, scrambling the content information of the detected signal after the spread spectrum processing to obtain a detection signal.
  • the sending module 91 is specifically configured to detect resources corresponding to the signal location information.
  • the location is sent to the micro base station to send a detection signal;
  • the processing module 93 is specifically configured to: use the first spreading code to perform spreading processing on the content information of the detection signal; and use the first scrambling code to detect the content of the detected signal after the spreading processing Perform scrambling processing to obtain a detection signal.
  • the receiving module 92 is further configured to receive the demodulation reference information sent by the RNC.
  • the processing module 93 is further configured to perform demodulation processing on the power control signal by using the demodulation reference information, where the receiving module 92 is specifically configured to receive The power control signal after the demodulation process is received; the processing module 93 is specifically configured to perform power control processing according to the power control signal after the demodulation process.
  • the processing module 93 is specifically configured to perform the coherent demodulation processing on the power control information.
  • the processing module 93 is specifically configured to perform despreading processing on the power control signal by using the second spreading code; The sequence performs coherent demodulation processing on the power control signal after the despreading process.
  • the processing module 93 is specifically configured to perform the descrambling processing on the power control signal by using the second scrambling code. ⁇ Using the second spreading code, despreading the power control signal after the descrambling process; ⁇ using the signature sequence to perform coherent demodulation processing on the despread power control signal.
  • the receiving module 92 When the receiving module 92 receives the demodulation reference information sent by the RNC, including the second scrambling code, the second spreading code, the power control signal position information, and the signature sequence, the receiving module 92 is specifically configured to correspond to the position information of the power control signal.
  • the resource location receives the power control signal sent by the micro base station according to the detection signal; the processing module 93 is specifically configured to: use the second scrambling code to perform descrambling processing on the power control signal; and use the second spreading code to perform descrambling processing
  • the subsequent power control signal is subjected to despreading processing; the signature sequence is used to perform coherent demodulation processing on the despread power control signal.
  • the detection signals sent or received by the above modules include a preamble preamble; or an S-DPCCH signal; or a DPCCH signal.
  • the device in the embodiment of the user equipment may be used to implement the technical solution of the method embodiment shown in FIG. 6.
  • the implementation principle and technical effects are similar, and details are not described herein again.
  • the micro base station of this embodiment includes: a receiver 101, a processor 102, and a transmitter 103, where the receiver 101 is configured to receive the first The detection signal sent by the user equipment UE in the area, the first area is the uplink power according to the detection signal, determining whether the UE is an interfering UE; the transmitter 103 is configured to send a power control signal to the interfering UE.
  • the receiver 101 is further configured to receive demodulation reference information sent by the radio network controller RNC; the processor 102 is further configured to perform demodulation processing on the detection signal by using demodulation reference information; The device 102 is further configured to determine, according to the detection signal after the demodulation processing, whether the UE is Interfere with the UE.
  • the processor 102 is specifically configured to: use the first scrambling code to perform descrambling processing on the detection signal;
  • the content information is coherently demodulated on the descrambled detection signal.
  • the processor 102 is specifically configured to use the first scrambling code to descramble the detection signal. Processing: ⁇ using the first spreading code, performing despreading processing on the descrambling processing signal; using the detection signal content information to perform coherent demodulation on the despreading detection signal.
  • the receiver 101 When the demodulation reference information sent by the RNC received by the receiver 101 includes the first scrambling code, the first spreading code, the detection signal content information, and the detection signal location information, the receiver 101 is specifically configured to correspond to the detection signal location information.
  • the detection signal is received; the processor 102 is specifically configured to: use the first scrambling code to perform descrambling processing on the detection signal; and use the first spreading code to perform despreading processing on the descrambling processed detection signal;
  • the detection signal content information is used to perform coherent demodulation on the despread processing signal.
  • the receiver 101 is further configured to receive modulation reference information sent by the RNC.
  • the processor 102 is specifically configured to perform modulation processing on the power control signal by using modulation reference information.
  • the transmitter 103 is specifically configured to send the power control after the modulation processing to the interfering UE. signal.
  • the processor 102 is specifically configured to perform the modulation processing on the power control information by using the signature sequence.
  • the processor 102 When the receiver 101 receives the modulation reference information sent by the RNC, including the signature sequence and the second spreading code, the processor 102 is specifically configured to perform the modulation processing on the power control information by using the signature sequence, and use the second spreading code, The modulated power control signal is subjected to spread spectrum processing.
  • the processor 102 When the receiver 101 receives the modulation reference information sent by the RNC, the signature sequence, the second spreading code, and the second scrambling code; the processor 102 is specifically configured to use the signature sequence to perform modulation processing on the power control information; The frequency code performs spreading processing on the modulated power control signal; and the second scrambling code is used to perform scrambling processing on the power control signal after the spread processing.
  • the transmitter 103 is specifically configured to use the resource location corresponding to the power control signal location information.
  • the processor 102 is specifically configured to use the signature sequence to perform modulation processing on the power control information; to use the second spreading code to perform modulation processing The subsequent power control signal is subjected to spread spectrum processing; and the second scrambling code is used to perform scrambling processing on the power control signal after the spread spectrum processing.
  • the detection signals sent or received by the above modules include a preamble preamble; or an S-DPCCH signal; or a DPCCH signal.
  • the processor 102 is specifically configured to determine a signal to noise ratio of the detection signal; if the signal to noise ratio is greater than a preset value, determine that the UE is an interfering UE.
  • the receiver 101 is further configured to receive the detection signal sent by the at least two UEs in the first area; the processor 102 further And determining, according to the detection signal, that the number of interfering UEs in the at least two UEs exceeds half of the number of the at least two UEs; the transmitter 103 is further configured to send the power control signal to the at least two UEs.
  • the device in the embodiment of the present invention can be used to implement the technical solution of the method embodiment shown in FIG. 3 or FIG. 4, and the implementation principle and technical effects are similar, and details are not described herein again.
  • the user equipment of this embodiment includes a transmitter 111 for transmitting a detection signal to a micro base station, and a receiver 112 for receiving a micro base station according to a detection signal.
  • the transmitted power control signal; the processor 113 is configured to perform power control processing according to the power control signal.
  • the device in the embodiment of the user equipment can be used to implement the technical solution of the method embodiment shown in FIG. 5, and the implementation principle and the technical effect are similar, and details are not described herein again.
  • the receiver 112 is further configured to receive modulation reference information sent by the radio network controller RNC; the processor 113 is further configured to use the modulation reference information to obtain the detection signal.
  • the processor 113 is specifically configured to use the first scrambling code to perform scrambling processing on the detection signal content information to obtain the detection signal.
  • the processor 113 is specifically configured to: use the first spreading code to spread the detection signal content information. Processing; using the first scrambling code, scrambling the content information of the detected signal after the spread spectrum processing to obtain a detection signal.
  • the transmitter 111 When the receiver 112 receives the RNC transmission modulation reference information including the first scrambling code, the first spreading code, the detection signal content information, and the detection signal position information, the transmitter 111 is specifically configured to detect the signal.
  • the resource location corresponding to the location information sends a detection signal to the base station; the processor 113 is specifically configured to: use the first spreading code to perform spreading processing on the content information of the detection signal; and use the first scrambling code to perform the spread spectrum processing
  • the signal content information is detected and subjected to scrambling processing to obtain a detection signal.
  • the receiver 112 is further configured to receive demodulation reference information sent by the RNC; the processor 113 is further configured to perform demodulation processing on the power control signal by using demodulation reference information; and the receiver 112 is specifically configured to receive the demodulated power. Control signal; The processor 113 is specifically configured to perform power control processing according to the demodulated power control signal.
  • the processor 113 is specifically configured to perform the coherent demodulation processing on the power control information by using the signature sequence.
  • the processor 113 When the receiver 112 receives the second spreading code and the signature sequence in the demodulation reference information sent by the RNC, the processor 113 is specifically configured to perform despreading processing on the power control signal by using the second spreading code; The sequence performs coherent demodulation processing on the power control signal after the despreading process.
  • the processor 113 When the receiver 112 receives the second scrambling code, the second spreading code, and the signature sequence in the demodulation reference information sent by the RNC, the processor 113 is specifically configured to perform the descrambling processing on the power control signal by using the second scrambling code. ⁇ Using the second spreading code, despreading the power control signal after the descrambling process; ⁇ using the signature sequence to perform coherent demodulation processing on the despread power control signal.
  • the transmitter 111 is specifically configured to detect resources corresponding to the signal location information.
  • the location is sent to the base station to send a detection signal; the processor 113 is specifically configured to use the first spreading code to perform spreading processing on the detection signal; and use the first scrambling code to perform scrambling processing on the signal after the spreading processing .
  • the receiver 112 is further configured to receive demodulation reference information sent by the RNC; the processor 113 is further configured to perform demodulation processing on the power control signal by using demodulation reference information; and the receiver 112 is specifically configured to receive the demodulated power. Control signal; The processor 113 is specifically configured to perform power control processing according to the demodulated power control signal.
  • the processor 113 is specifically configured to perform the coherent demodulation processing on the power control information by using the signature sequence.
  • the processor 113 When the receiver 112 receives the demodulation reference information sent by the RNC, including the second spreading code and the signature sequence, the processor 113 is specifically configured to perform despreading processing on the power control signal by using the second spreading code; And performing coherent demodulation processing on the power control signal after the despreading process.
  • the receiver 112 When the receiver 112 receives the demodulation reference information sent by the RNC, the second scrambling code and the second spreading code are included. And the signature sequence; the processor 113 is specifically configured to: use the second scrambling code to perform descrambling processing on the power control signal; and use the second spreading code to perform despreading processing on the descrambled power control signal; The coherent demodulation process is performed on the despread power control signal by using a signature sequence.
  • the receiver 112 When the receiver 112 receives the demodulation reference information sent by the RNC, including the second scrambling code, the second spreading code, the power control signal location information, and the signature sequence; the receiver 112 is specifically configured to use resources corresponding to the power control signal location information.
  • the receiving power control signal sent by the micro base station according to the detection signal; the processor 113 is specifically configured to: use the second scrambling code to perform descrambling processing on the power control signal; and use the second spreading code to perform descrambling processing
  • the power control signal is subjected to despreading processing; the signature sequence is used to perform coherent demodulation processing on the despread power control signal.
  • the detection signals sent or received by the above modules include a preamble preamble; or
  • the device in the embodiment of the user equipment may be used to implement the technical solution of the method embodiment shown in FIG. 6.
  • the implementation principle and technical effects are similar, and details are not described herein again.
  • FIG. 12 is a schematic structural diagram of an embodiment of an interference control system according to the present invention.
  • the system in this embodiment includes a micro base station 121 and a user equipment 122, where the micro base station 121 can include any of the micro base stations of FIG. 7 to FIG.
  • the technical solution of the method embodiment of any one of FIG. 2 to FIG. 4 is implemented, and the implementation principle and the technical effect thereof are similar, and details are not described herein again.
  • the user equipment 122 includes the user equipment in FIG. 9 , and the corresponding technical solutions of the method embodiments of FIG. 5 and FIG. 6 are implemented, and the implementation principles and technical effects thereof are similar, and details are not described herein again.
  • the method includes the steps of the foregoing method embodiments; and the foregoing storage medium includes: a medium that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk.

Abstract

La présente invention concerne, dans des modes de réalisation, un procédé, un appareil et un système de contrôle de brouillage. Le procédé comprend les étapes consistant à recevoir un signal de détection envoyé par un équipement utilisateur (UE) dans une première zone et déterminer si l'UE est un UE brouilleur sur la base du signal de détection ; si oui, envoyer un signal de commande de puissance à l'UE brouilleur. Au moyen de la présente invention, une microstation de base peut déterminer un UE brouilleur et réduire la puissance d'émission de l'UE brouilleur en envoyant un signal de commande de puissance à l'UE brouilleur, ce qui réduit le brouillage par l'UE brouilleur sur la microstation de base.
PCT/CN2012/083422 2012-10-24 2012-10-24 Procédé, appareil et système de contrôle de brouillage WO2014063315A1 (fr)

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CN201280001399.4A CN104081833A (zh) 2012-10-24 2012-10-24 干扰控制方法、装置和系统
PCT/CN2012/083422 WO2014063315A1 (fr) 2012-10-24 2012-10-24 Procédé, appareil et système de contrôle de brouillage

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CN101056152B (zh) * 2006-04-30 2010-08-04 华为技术有限公司 通用移动通信系统中的传输方法及其系统
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WO2005120101A1 (fr) * 2004-06-04 2005-12-15 De Sousa Elvino Silveira Medin Reseaux sans fil a infrastructure autonome
CN101133675A (zh) * 2005-01-25 2008-02-27 诺基亚西门子网络公司 用于减小无线蜂窝通信网络中室内小区干扰的方法
CN1905730A (zh) * 2006-08-08 2007-01-31 华为技术有限公司 移动通信系统中邻区干扰抑制方法及基站节点
CN101572904A (zh) * 2008-04-28 2009-11-04 华为技术有限公司 一种控制ue对临小区干扰的方法、装置及系统

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