WO2015062419A1 - 处理谐波干扰的方法和基站 - Google Patents

处理谐波干扰的方法和基站 Download PDF

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Publication number
WO2015062419A1
WO2015062419A1 PCT/CN2014/088789 CN2014088789W WO2015062419A1 WO 2015062419 A1 WO2015062419 A1 WO 2015062419A1 CN 2014088789 W CN2014088789 W CN 2014088789W WO 2015062419 A1 WO2015062419 A1 WO 2015062419A1
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Prior art keywords
user equipment
frequency resource
harmonic
uplink frequency
base station
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PCT/CN2014/088789
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English (en)
French (fr)
Inventor
王键
单惠平
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华为终端有限公司
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Publication of WO2015062419A1 publication Critical patent/WO2015062419A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/02—Resource partitioning among network components, e.g. reuse partitioning
    • H04W16/10—Dynamic resource partitioning

Definitions

  • the present invention relates to communication technologies, and in particular, to a method and base station for processing harmonic interference.
  • CA Carrier Aggregation
  • LTE-A Long Term Evolution Advanced
  • the CA is classified into three types: intra-band continuous, intra-band non-continuous, and inter-band.
  • the inter-band CA class A1, inter-band CA class A2, inter-band CA class A3, and inter- are classified into different inter-band CA class A1, inter-band CA class A3, and inter-band.
  • Band CA class A4 the inter-band CA class A4 .
  • inter-band CA class A2 is a low-high band carrier aggregation and has a harmonic interference problem
  • the 3rd harmonic of band 17 overlaps with the downlink reception of band 4, resulting in Band 4 receives the deterioration of sensitivity.
  • Harmonic interference refers to the interference of the user equipment receiving signals when the harmonics of the uplink frequency resources used by the user equipment (User Equipment, UE for short) fall into the downlink frequency resources used by the user equipment.
  • the UE when the UE finds harmonic interference, the UE feeds back the current harmonic interference to the base station, and feeds back the difference between the interference size and the received signal size to the evolved base station (eNodeB), and the UE may also propose to the eNodeB to process the harmonics.
  • the method can also suggest the location of the frequency resource scheduling. Because the result reported by the UE is inaccurate, the received signal of the user equipment is seriously affected by harmonic interference.
  • the present invention provides a method and base station for processing harmonic interference, which is used to reduce interference of harmonics in a CA scenario to a received signal of a user equipment.
  • an embodiment of the present invention provides a method for processing harmonic interference, including:
  • the base station Before performing resource scheduling on the user equipment, the base station determines whether harmonics of the uplink frequency resource to be used by the user equipment in the current carrier aggregation scenario may generate harmonic interference to the downlink frequency resource to be used by the user equipment;
  • the base station determines that harmonic interference is generated, acquiring the transmit power of the user equipment and using the The relative value of the harmonic component of the uplink frequency resource to be used by the user equipment and the energy of the primary component, or the channel state quality of the user equipment, the transmission power of the user equipment, and the user equipment to be used.
  • the base station according to the transmit power of the user equipment and the relative value of the harmonic component of the uplink frequency resource and the energy of the primary component to be used by the user equipment, or the channel state quality reported by the user equipment, And determining, by the transmit power of the user equipment, the relative value of the harmonic component of the uplink frequency resource and the energy of the primary component to be used by the user equipment, and determining a reference signal reception quality change value after the user equipment is subjected to harmonic interference;
  • the base station determines that the reference signal reception quality change value of the user equipment after the harmonic interference exceeds a preset threshold, perform at least one of: changing the uplink frequency resource to be used by the user equipment or the a downlink frequency resource; adjusting a coding and modulation scheme of the downlink signal received by the user equipment; increasing a received power of the user equipment; or reducing a transmission power of the user equipment.
  • acquiring the transmit power of the user equipment includes:
  • acquiring channel state quality of the user equipment includes:
  • an embodiment of the present invention provides a base station, including:
  • a first determining module configured to determine, before the resource scheduling of the user equipment, whether the harmonic of the uplink frequency resource to be used by the user equipment in the current carrier aggregation scenario is generated by the downlink frequency resource to be used by the user equipment Harmonic interference
  • an acquiring module configured to acquire, when the determining module determines that harmonic interference is generated, acquire a transmit power of the user equipment, and a relative value of a harmonic component and a principal component of the uplink frequency resource to be used by the user equipment Or, a channel state quality of the user equipment, a transmit power of the user equipment, and a relative value of a harmonic component of the uplink frequency resource to be used by the user equipment and a principal component;
  • a second determining module configured to: according to the transmit power of the user equipment acquired by the acquiring module, and the relative value of the harmonic component of the uplink frequency resource and the energy of the primary component to be used by the user equipment, or according to the The channel state quality reported by the user equipment, and the transmit power of the user equipment And determining, by the user equipment, a harmonic component of the uplink frequency resource and a relative value of the energy of the primary component, and determining a reference signal receiving quality change value of the user equipment after being interfered by the harmonic;
  • a third determining module configured to determine whether the reference signal receiving quality change value after the user equipment is subjected to harmonic interference determined by the second determining module exceeds a preset threshold
  • a processing module configured to: after the third determining module determines that the reference signal receiving quality change value of the user equipment is more than a preset threshold, perform at least one of: changing the user equipment to be used
  • the uplink frequency resource or the downlink frequency resource is used to adjust the coding and modulation scheme of the downlink signal received by the user equipment, increase the receiving power of the user equipment, and reduce the transmission power of the user equipment.
  • the acquiring module includes: a first acquiring module, where the first acquiring module is configured to use, according to a configuration power lower limit of the user equipment, The power headroom determines the transmit power of the user equipment.
  • the acquiring module further includes: a second acquiring module, where the second acquiring module is configured to receive the The quality of the channel status reported by the user equipment.
  • the base station before the base station performs resource scheduling on the user equipment, the base station actively determines whether the user equipment has potential harmonic interference according to the frequency resource to be used by the user equipment, and the base station in the prior art according to the current harmonic interference situation.
  • the determination result of the embodiment of the present invention is more accurate than predicting whether the frequency resource to be used is a potential harmonic interference. Because the embodiment of the present invention determines whether the frequency interference of the frequency resource to be used by the user equipment is relatively accurate, and the base station finds that the frequency resource to be used by the user equipment has harmonic interference based on the relatively accurate determination result, and is also subjected to the user equipment according to the user equipment.
  • inventions of the present invention reduce interference of harmonic interference with received signals by user equipment.
  • the present invention does not require the user equipment to feedback the interference and the relative size of the received signal, and effectively reduces the signaling overhead between the base station and the user equipment.
  • FIG. 1 is a flowchart of a method for processing harmonic interference according to an embodiment of the present invention
  • FIG. 2 is a flowchart of another method for processing harmonic interference according to an embodiment of the present invention.
  • FIG. 3 is a schematic diagram of carrier aggregation of a band 4 and a band 17 according to an embodiment of the present disclosure
  • FIG. 4 is a schematic structural diagram of a base station according to an embodiment of the present disclosure.
  • FIG. 5 is a schematic structural diagram of another base station according to an embodiment of the present invention.
  • the embodiments of the present invention can be used in all communication modes supporting the CA scenario, for example, LTE-A, Wideband Code Division Multiple Access (WCDMA), and Time Division Synchronous Code Division Multiple Access (Time Division). - Synchronous Code Division Multiple Access (TDSCDMA), WIFI or future communication system.
  • FIG. 1 is a flowchart of a method for processing harmonic interference according to an embodiment of the present invention. As shown in FIG. 1, the method provided in this embodiment includes:
  • Step 11 Before performing resource scheduling on the user equipment, the base station determines whether harmonics of the uplink frequency resource to be used by the user equipment in the current CA scenario may generate harmonic interference to the downlink frequency resource to be used by the user equipment.
  • the base station Before performing resource scheduling on the user equipment, the base station determines whether there is harmonic interference of the frequency resource to be used by the user equipment in the current CA scenario. If the harmonic of the uplink frequency resource to be used by the user equipment in the current CA scenario falls within the range of the downlink frequency resource to be used by the user equipment, determining the uplink frequency resource to be used by the user equipment in the current CA scenario. Harmonics can cause harmonic interference to the user equipment.
  • Step 12 The base station determines that harmonic interference is generated, and acquires the transmit power of the user equipment and the relative value of the harmonic component of the uplink frequency resource and the primary component of the user equipment to be used in the current CA scenario, or the user The channel state quality of the device, the transmit power of the user equipment, and the relative value of the harmonic component of the uplink frequency resource to be used by the user equipment and the principal component.
  • the transmit power of the user equipment may be determined according to a lower limit of a configured power of the user equipment and a power up space reported by the user equipment.
  • the channel state quality of the user equipment acquired by the base station may be the channel state quality reported by the user equipment.
  • the user equipment periodically reports the channel state quality to the base station, and the channel state quality of the user equipment acquired by the base station may be: the base station determines that the harmonic of the uplink frequency resource to be used by the user equipment in the current CA scenario will be the user.
  • the quality of the channel state reported by the user equipment when the downlink frequency resource to be used by the device generates harmonic interference.
  • the relative value of the harmonic component of the uplink frequency resource to be used by the user equipment in the current CA scenario and the energy value of the primary component may be notified by the base station to report the relative value of the energy when the CA scenario is established.
  • the relative value of the harmonic component of the uplink frequency resource and the principal component to be used by the user equipment in the current CA scenario is a fixed value, and does not change with the change of the channel state quality.
  • Step 13 The base station according to the transmit power of the user equipment and the relative value of the harmonic component of the uplink frequency resource to be used by the user equipment in the current CA scenario and the energy of the primary component, or the channel state quality of the user equipment, The transmit power of the user equipment and the relative value of the harmonic component of the uplink frequency resource and the primary component to be used by the user equipment determine the reference signal reception quality change value of the user equipment after the harmonic interference.
  • the base station Before the base station performs resource scheduling on the user equipment, if it is determined that the harmonic of the uplink frequency resource to be used by the user equipment in the current CA scenario may generate harmonic interference to the user equipment, determining that the user equipment is subjected to harmonic interference Reference Signal Received Quality (RSRQ) change value.
  • RSRQ Reference Signal Received Quality
  • the RSRQ change value of the user equipment after the harmonic interference may be determined according to the transmit power of the user equipment, and the relative value of the harmonic component of the uplink frequency resource and the energy of the primary component to be used by the user equipment in the current CA scenario, and The base station may further determine an RSRQ change according to a channel state quality of the user equipment, a transmit power of the user equipment, and a relative value of a harmonic component of the uplink frequency resource to be used by the user equipment in the current CA scenario and a principal component. value.
  • Step 14 The base station determines that the reference signal received quality change value of the user equipment after the harmonic interference exceeds a preset threshold, and the base station performs at least one of: changing an uplink frequency resource or a downlink frequency resource to be used by the user equipment, and adjusting
  • the user equipment receives a coding and modulation scheme of the downlink signal (selecting a coding and modulation scheme of the received downlink signal with a low signal-to-noise ratio requirement), increasing the power of the user equipment to receive the signal, and reducing the power of the signal transmitted by the user equipment.
  • the base station determines that the reference signal receiving quality change value of the user equipment after the harmonic interference exceeds a preset threshold, and the base station determines that the harmonic interference to the user equipment receiving signal is serious, and then adjusts the scheduling scheme of the user equipment, Prevent erroneous scheduling actions to reduce interference from harmonics to the received signal from the user equipment. If the reference signal reception quality change value of the user equipment after the harmonic interference does not exceed the preset threshold, the scheduling scheme of the user equipment may not need to be adjusted.
  • the base station determines that the reference signal received quality change value of the user equipment after the harmonic interference exceeds a preset threshold, and the base station may change an uplink frequency resource or a downlink frequency resource to be used by the user equipment, that is, change the user equipment to send a signal. Position of the frequency resource, or changing the frequency resource location of the signal received by the user equipment, to prevent the downlink frequency resource to be used from falling within the range of the uplink frequency resource to be used; the base station may also adjust the user
  • MCS modulation and modulation scheme
  • the base station can also increase the power of the user equipment to receive signals, and reduce the power of the signal sent by the user equipment.
  • the base station before the base station performs resource scheduling on the user equipment, the base station actively determines whether the user equipment has potential harmonic interference according to the frequency resource to be used by the user equipment, and the base station in the prior art according to the current harmonic interference situation.
  • the determination result of the embodiment of the present invention is more accurate than predicting whether the frequency resource to be used is a potential harmonic interference.
  • the embodiment of the present invention determines whether the frequency interference of the frequency resource to be used by the user equipment is relatively accurate. When the base station finds that the frequency resource to be used by the user equipment has harmonic interference based on the relatively accurate determination result, the base station performs the user equipment.
  • the scheduling scheme of the user equipment is adjusted in advance according to the relationship between the quality change value of the reference signal received by the user equipment after the harmonic interference and the preset threshold, thereby avoiding the wrong scheduling action. Therefore, the method provided by the embodiment of the invention reduces the interference of the harmonic interference on the received signal of the user equipment. In addition, the present invention does not require the user equipment to feedback the interference and the relative size of the received signal, and effectively reduces the signaling overhead between the base station and the user equipment.
  • FIG. 2 is a flowchart of a method for processing harmonic interference according to an embodiment of the present invention. As shown in FIG. 2, the method provided in this embodiment includes:
  • Step 21 When the current CA scenario is established, the base station determines whether harmonics of the uplink frequency resource in the current CA scenario may generate harmonic interference to the downlink frequency resource.
  • the base station determines whether the harmonics of the uplink frequency resource in the current CA scenario will fall within the range of the downlink frequency resource according to the characteristics of the current CA scenario and the frequency scheduling policy to be used. Whether the harmonics of the uplink frequency resources in the CA scenario may cause harmonic interference to the downlink frequency resources.
  • the frequency resource range in the current CA scenario is greater than the frequency resource used by the user equipment in the current CA scenario. Even if the base station determines in step 21 that the harmonics of the uplink frequency resource in the current CA scenario may cause harmonic interference to the downlink frequency resource, There may be no harmonic interference in the frequency resources used by the user equipment.
  • Step 22 The base station determines that harmonic interference is generated, and notifies the user equipment to report the relative value of the harmonic component of the uplink frequency resource and the energy of the primary component that the user equipment is to use in the current CA scenario.
  • the base station determines that the harmonics of the uplink frequency resource in the current CA scenario does not generate harmonic interference to the downlink frequency resource, the base station does not need to perform subsequent actions and directly communicates with the user equipment.
  • Step 23 The base station receives the relative value of the harmonic component of the uplink frequency resource and the energy of the primary component that the user equipment reports in the current CA scenario reported by the user equipment.
  • the harmonic component of the uplink frequency resource to be used by the user equipment in the current CA scenario and the user The relative energy value of the principal component of the uplink frequency resource to be used by the device in the current CA scenario, reflecting the relative magnitude relationship between the harmonic self-interference and the principal component.
  • the user equipment supporting the CA maintains the relative size relationship between the harmonic self-interference and the principal component and reports it. For example, the relationship table shown in Table 1 can be maintained, and the relative size relationship reflecting the harmonic self-interference and the principal component can be maintained. Curve.
  • the range of downlink frequency resources of band 4 is (2110 to 2155), and the range of the third harmonic of band 17 uplink frequency resources is (2112 to 2148).
  • the 3rd harmonic of band 17 overlaps with the downlink reception of band 4, resulting in deterioration of the receiving sensitivity of band 4.
  • the user equipment supporting the CA can report the relationship table as shown in Table 1. Since this CA scenario has only the interference of the 3rd harmonic, the 2nd harmonic does not need to be reported.
  • the third harmonic is -120dBc of the principal component, indicating that the power of the third harmonic is 120 dB lower than the power of the principal component.
  • the relative magnitude relationship between the second harmonic and the principal component can be replaced by FF or other values instead of N/A, and N/A represents a null value. The greater the power of the principal component, the greater the power of the harmonics.
  • Table 1 is the relationship between the harmonic component and the energy of the principal component.
  • Step 24 Before performing resource scheduling on the user equipment, the base station determines whether harmonics of the uplink frequency resource to be used by the user equipment in the current CA scenario may generate harmonic interference to the downlink frequency resource to be used by the user equipment.
  • Step 25 If the base station determines that harmonic interference is generated, according to the power lower limit configured by the user equipment and the power rising space reported by the user equipment (English full name: Power Head Room, English shorthand: PHR) and the lower limit of the configured power of the user equipment, Determine the transmit power of the user equipment.
  • the base station determines that the harmonic of the uplink frequency resource to be used by the user equipment in the current CA scenario does not generate harmonic interference to the downlink frequency resource to be used by the user equipment, the base station does not need to perform subsequent actions, directly User equipment communicates.
  • P EMAX is the information element (English full name: Information Element, English abbreviation: IE) configured by the user equipment to transmit the maximum power;
  • ⁇ T C is the maximum transmit power at the edge of the emission bandwidth 4MHz can be reduced by 1.5dB;
  • P PowerClass The maximum transmit power is not considered for the user equipment;
  • the MPR is the maximum power backoff of the user equipment, and the maximum power transmitted when using the number of resource blocks (RB) or high-order modulation can be reduced compared to the P PowerClass .
  • A-MPR is the extra maximum power backoff of the user equipment.
  • the maximum power transmitted by the user equipment may be further reduced;
  • ⁇ T IB,c is the deviation of the transmission power when the user equipment supports carrier aggregation.
  • the parameters ⁇ TC, P powerClass , MPR, A-MPR, ⁇ T IB, c and P-MPR can be searched by protocol according to the frequency band in which the user equipment is located.
  • Step 26 The base station determines, according to the transmit power of the user equipment and the relative value of the harmonic component of the uplink frequency resource to be used by the user equipment and the energy of the primary component, the RSRQ change value of the user equipment after being interfered by the harmonic.
  • the RSRQ change value of the user equipment after the harmonic interference is the difference between the RSRQ of the user equipment after the harmonic interference and the RSRQ originally reported by the user equipment.
  • the P_interfere is the harmonic leakage of the user equipment to the receiving band
  • P_interfere P_ul-IRR
  • P_ul is the transmission power of the user equipment
  • the IRR (Interference Rejection Ratio) is the harmonic component suppression degree.
  • the medium IRR is represented by the relative value of the harmonic component of the uplink frequency resource to be used by the user equipment and the principal component.
  • N is the number of resource blocks (RBs) used in the Received Signal Strength Indicator (RSSI) measurement;
  • RSRP is the reference signal received power, and is in the range of RE (resource element) within the measurement frequency width.
  • the E-UTRA carrier RSSI is an E-UTRA carrier received signal strength indicator, and the signal power of the reference signal OFDM symbol antenna port 0 received within the measurement bandwidth.
  • the base station may determine the channel state quality reported by the user equipment when determining the quality of the reference signal received by the user equipment after the harmonic interference, for example, the channel quality indicator reported by the user equipment (Channel Quality) Indicator, referred to as CQI), Precoding Matrix Indicator (PMI), Rank Indication (RI), and the like.
  • CQI Channel Quality indicator
  • PMI Precoding Matrix Indicator
  • RI Rank Indication
  • the base station determines the harmonic interference generated by the scheduling to be performed by referring to the channel state quality reported by the user equipment, obtains the quality of the channel state after the scheduling to be performed, and then determines whether to perform according to the preset threshold. Adjustment of the scheduling plan.
  • Step 27 The base station determines that the RSRQ change value of the user equipment after the harmonic interference exceeds a preset threshold, and performs at least one of the following: changing an uplink frequency resource or a downlink frequency resource to be used by the user equipment, and adjusting the user equipment to receive the downlink.
  • the coding and modulation scheme of the signal increases the power of the signal received by the user equipment and reduces the power of the signal transmitted by the user equipment.
  • the RSRQ change value of the user equipment after the harmonic interference does not exceed the preset threshold, and the interference of the harmonics on the transmit power of the user equipment may be ignored; if the RSRQ change value of the user equipment after the harmonic interference exceeds the preset threshold, the The interference of the harmonics on the transmit power of the user equipment is ignored, and the base station adjusts the scheduling scheme of the user equipment according to the channel state quality reported by the user equipment.
  • the feedback of the user equipment to the relative value of the harmonic component of the user equipment and the energy of the primary component only needs to be fed back before the CA activation or just after activation, and the base station according to the resource scheduling situation to be used by the user equipment later. Determining whether the user equipment encounters a harmonic interference problem in the resource scheduling situation to be used, and according to the relative value of the harmonic component reported by the user equipment and the energy of the primary component and the amount of the transmitting power of the user equipment, The influence of harmonic interference needs to be considered. If the influence can be ignored, the scheduling strategy will not be changed. If it cannot be ignored, the self-interference situation will be adjusted and adjusted to prevent erroneous scheduling actions.
  • FIG. 4 is a schematic structural diagram of a base station for performing a method for processing harmonic interference according to an embodiment of the present invention.
  • the base station provided in this embodiment includes: a first determining module 41, an obtaining module 42, a second determining module 43, a third determining module 44, and a processing module 45.
  • the first determining module 41 is configured to determine, before the resource scheduling of the user equipment, whether the harmonic of the uplink frequency resource to be used by the user equipment in the current carrier aggregation scenario is to use the downlink frequency resource to be used by the user equipment. Harmonic interference
  • the obtaining module 42 is configured to: when the determining module determines that harmonic interference is generated, acquire the transmit power of the user equipment and the harmonic component of the uplink frequency resource to be used by the user equipment, and the energy of the primary component a value, or a channel state quality of the user equipment, a transmit power of the user equipment, and a relative value of a harmonic component of the uplink frequency resource to be used by the user equipment and a principal component.
  • a second determining module 43 configured to: according to the transmit power of the user equipment acquired by the acquiring module, the relative value of the harmonic component of the uplink frequency resource and the energy of the primary component to be used by the user equipment, or according to The channel state quality reported by the user equipment, the transmission power of the user equipment, and the harmonic component of the uplink frequency resource to be used by the user equipment Determining, by the relative value of the energy of the principal component, a reference signal receiving quality change value after the user equipment is subjected to harmonic interference;
  • a third determining module 44 configured to determine whether the reference signal receiving quality change value after the user equipment is subjected to harmonic interference determined by the second determining module exceeds a preset threshold
  • the processing module 45 is configured to: after the third determining module determines that the reference signal receiving quality change value of the user equipment after the harmonic interference exceeds a preset threshold, perform at least one of: changing the user equipment to be The uplink frequency resource or the downlink frequency resource used is used to adjust the coding and modulation scheme of the downlink signal received by the user equipment, increase the receiving power of the user equipment, and reduce the transmission power of the user equipment.
  • the obtaining module 42 includes: a first acquiring module, where the first acquiring module is configured to determine, according to the configured power lower limit of the user equipment and the power rising space reported by the user equipment, the transmit power of the user equipment. .
  • the obtaining module 42 further includes: a second acquiring module, where the second acquiring module is configured to receive a channel state quality reported by the user equipment.
  • the acquiring module 42 is configured to receive the harmonic component and the main component of the uplink frequency resource to be used by the user equipment reported by the user equipment. Relative value of energy.
  • the obtaining module 42 further includes: a triggering module, configured to trigger the user equipment to report a relative value of the harmonic component of the uplink frequency resource and the energy component of the primary component to be used by the user equipment.
  • the determination result of the harmonic interference of the frequency resource to be used by the user equipment is relatively accurate, and the base station finds that the frequency resource of the user equipment to be used has harmonic interference based on the relatively accurate determination result, and is also subjected to the harmonic according to the user equipment.
  • the relationship between the received quality change value of the reference signal and the preset threshold is adjusted before the resource scheduling of the user equipment, and the scheduling scheme of the user equipment is adjusted in advance to avoid an erroneous scheduling action. Therefore, the base station provided by the embodiment of the present invention reduces interference of harmonic interference on the received signal of the user equipment.
  • the present invention does not require the user equipment to feedback the interference and the relative size of the received signal, and effectively reduces the signaling overhead between the base station and the user equipment.
  • an embodiment of the present invention further provides another base station, where the base station includes: a memory 51, a processor 52, and a bus 53 and a communication interface 54.
  • the processor 52, the memory 51 and the communication interface 54 are connected by a bus;
  • the memory 51 is configured to store a program
  • the processor 52 is configured to execute a program in the memory 51.
  • the processor 52 is configured to perform as follows:
  • determining whether harmonics of the uplink frequency resource to be used by the user equipment in the current carrier aggregation scenario may generate harmonic interference to the downlink frequency resource to be used by the user equipment;
  • the transmit power of the user equipment the relative value of the harmonic component of the uplink frequency resource and the energy of the primary component, or the channel state quality reported by the user equipment, the user equipment Transmitting power and a relative value of the harmonic component of the uplink frequency resource and the energy component of the primary component to be used by the user equipment, and determining a reference signal receiving quality change value after the user equipment is subjected to harmonic interference;
  • the reference signal received quality change value of the user equipment after the harmonic interference exceeds a preset threshold, performing at least one of: changing the uplink frequency resource or the downlink frequency resource to be used by the user equipment Adjusting a coding and modulation scheme of the user equipment to receive the downlink signal; increasing a received power of the user equipment; or reducing a transmission power of the user equipment.
  • the processor 52 is further configured to determine a transmit power of the user equipment according to a configuration power lower limit of the user equipment and a power headroom reported by the user equipment.
  • the communication interface 54 is configured to receive a channel state quality reported by the user equipment.
  • the communication interface 54 is further configured to receive a relative value of a harmonic component of the uplink frequency resource and a principal component of the uplink frequency component to be used by the user equipment.
  • the processor 52 is further configured to trigger before the communication interface 54 receives the relative value of the harmonic component of the uplink frequency resource and the energy of the primary component to be used by the user equipment reported by the user equipment.
  • the user equipment reports a relative value of the harmonic component of the uplink frequency resource and the energy of the primary component to be used by the user equipment.
  • the aforementioned program can be stored in a computer readable storage medium.
  • the program when executed, performs the steps including the above method embodiments;
  • the storage medium includes various media that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk.

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Abstract

本发明实施例提供一种处理谐波干扰的方法和基站。该方法包括：在对用户设备进行资源调度之前，基站确定用户设备在当前载波聚合场景中将要使用的上行频率资源的谐波是否会对用户设备将要使用的下行频率资源产生谐波干扰；如果确定会产生谐波干扰，获取用户设备的发射功率和用户设备将要使用的上行频率资源的谐波分量与主分量的能量相对值，还可以获取用户设备的信道状态质量，根据获取的信息确定用户设备受谐波干扰后的参考信号接收质量变化值；如果用户设备的受谐波干扰后的参考信号接收质量变化值超过预设阈值，对用户设备的调度方案进行调整。本发明实施例减少了谐波干扰对用户设备接收信号的干扰。

Description

处理谐波干扰的方法和基站 技术领域
本发明涉及通信技术，尤其涉及一种处理谐波干扰的方法和基站。
背景技术
载波聚合(英文为Carrier Aggregation，简称CA)技术是先进的长期演进技术(Long Term Evolution Advanced，简称LTE-A)的一项重要特性。CA分为频段内连续(intra-band continuous)、频段内不连续(intra-band non-continuous)和频段间(inter-band)三种类型。在inter-band CA场景，由于band频段高低的不同和干扰问题，分为不同的inter-band CA类型(inter-band CA class A1,inter-band CA class A2,inter-band CA class A3和inter-band CA class A4)。其中inter-band CA class A2为低-高频段载波聚合并且有谐波干扰问题的情形，例如band 4和band 17载波聚合时，band 17的3次谐波会和band 4的下行接收重叠，导致band 4接收灵敏度的恶化。谐波干扰是指，当用户设备(User Equipment，简称UE)使用的上行频率资源的谐波落入到用户设备使用的下行频率资源时，对用户设备接收信号的干扰。
现有技术中，UE在发现有谐波干扰时，向基站反馈目前有谐波干扰，并且将干扰大小和接收信号大小差异反馈给演进基站(eNodeB)，同时UE还可以向eNodeB建议处理谐波的方法，也可以建议频率资源调度的位置。由于有时UE上报的结果不准确，所以用户设备的接收信号受谐波干扰较为严重。
发明内容
本发明提供一种处理谐波干扰的方法和基站，用于减少CA场景中谐波对用户设备接收信号的干扰。
第一方面，本发明实施例提供一种处理谐波干扰的方法，包括：
基站在对用户设备进行资源调度之前，确定所述用户设备在当前载波聚合场景中将要使用的上行频率资源的谐波是否会对所述用户设备将要使用的下行频率资源产生谐波干扰；
所述基站确定会产生谐波干扰时，获取所述用户设备的发射功率和所述用 户设备将要使用的所述上行频率资源的谐波分量与主分量的能量相对值，或者，所述用户设备的信道状态质量、所述用户设备的发射功率和所述用户设备将要使用的所述上行频率资源的谐波分量与主分量的能量相对值；
所述基站根据所述用户设备的发射功率和所述用户设备将要使用的所述上行频率资源的谐波分量与主分量的能量相对值，或者，所述用户设备上报的信道状态质量、所述用户设备的发射功率和所述用户设备将要使用的所述上行频率资源的谐波分量与主分量的能量相对值，确定所述用户设备受谐波干扰后的参考信号接收质量变化值；
所述基站确定所述用户设备受谐波干扰后的所述参考信号接收质量变化值超过预设阈值时，执行以下至少一种：改变所述用户设备将要使用的所述上行频率资源或所述下行频率资源；调整所述用户设备接收下行信号的编码和调制方案；增加所述用户设备的接收功率；或者，减少所述用户设备的发射功率。
结合第一方面，在第一种可能的实现方式中，获取所述用户设备的发射功率包括：
根据所述用户设备的配置功率下限和所述用户设备上报的功率上升空间，确定所述用户设备的发射功率。
结合第一方面，或第一方面的第一种可能实现方式，在第二种可能的实现方式中，获取所述用户设备的信道状态质量包括：
接收所述用户设备上报的信道状态质量。
第二方面，本发明实施例提供一种基站，包括：
第一确定模块，用于在对用户设备进行资源调度之前，确定所述用户设备在当前载波聚合场景中将要使用的上行频率资源的谐波是否会对所述用户设备将要使用的下行频率资源产生谐波干扰；
获取模块，用于在所述确定模块确定会产生谐波干扰时，获取所述用户设备的发射功率和所述用户设备将要使用的所述上行频率资源的谐波分量与主分量的能量相对值，或者，所述用户设备的信道状态质量、所述用户设备的发射功率和所述用户设备将要使用的所述上行频率资源的谐波分量与主分量的能量相对值；
第二确定模块，用于根据所述获取模块获取的所述用户设备的发射功率和所述用户设备将要使用的所述上行频率资源的谐波分量与主分量的能量相对值，或者，根据所述用户设备上报的信道状态质量、所述用户设备的发射功率 和所述用户设备将要使用的所述上行频率资源的谐波分量与主分量的能量相对值，确定所述用户设备受谐波干扰后的参考信号接收质量变化值；
第三确定模块，用于确定所述第二确定模块确定的所述用户设备受谐波干扰后的所述参考信号接收质量变化值是否超过预设阈值；
处理模块，用于在所述第三确定模块确定所述用户设备的受谐波干扰后的所述参考信号接收质量变化值超过预设阈值，执行以下至少一种：改变所述用户设备将要使用的上行频率资源或下行频率资源，调整所述用户设备接收下行信号的编码和调制方案，增加所述用户设备的接收功率，减少所述用户设备的发射功率。
结合第二方面，在第一种可能的实现方式中，所述获取模块包括：第一获取模块，所述第一获取模块用于根据所述用户设备的配置功率下限和所述用户设备上报的功率上升空间，确定所述用户设备的发射功率。
结合第二方面，或第二方面的第一种可能实现方式，在第二种可能的实现方式中，所述获取模块还包括，第二获取模块，所述第二获取模块用于接收所述用户设备上报的信道状态质量。
本发明实施例在基站对用户设备进行资源调度之前，基站主动根据用户设备将要使用的频率资源来确定用户设备是否有潜在的谐波干扰，与现有技术中基站根据当前的谐波干扰情况来预测将要使用的频率资源是否潜在的谐波干扰相比，本发明实施例的确定结果较为准确。由于，本发明实施例对用户设备将要使用的频率资源是否存在谐波干扰确定结果比较准确，基站基于比较准确的确定结果发现用户设备将要使用的频率资源存在谐波干扰时，还根据用户设备受谐波干扰后的参考信号接收质量变化值与预设阈值之间的大小关系对用户设备进行资源调度之前事先对用户设备的调度方案进行调整，避免了错误的调度动作。因此，本发明实施例减少了谐波干扰对用户设备接收信号的干扰。另外，本发明不需要用户设备反馈干扰和接收信号相对大小，有效减少了基站与用户设备之间的信令开销。
附图说明
图1为本发明实施例提供的一种处理谐波干扰的方法流程图；
图2为本发明实施例提供的另一种处理谐波干扰的方法流程图；
图3为本发明实施例提供的band 4和band 17载波聚合示意图；
图4为本发明实施例提供的一种基站结构示意图；
图5为本发明实施例提供的另一种基站结构示意图。
具体实施方式
本发明实施例可以用于所有支持CA场景的通信方式，例如，LTE-A、宽带码分多址接入(Wideband Code Division Multiple Access，简称WCDMA)、时分同步码分多址接入(Time Division-Synchronous Code Division Multiple Access，简称TDSCDMA)、WIFI或者将来的通信制式。
图1为本发明实施例提供的一种处理谐波干扰的方法流程图。如图1所示，本实施例提供的方法包括：
步骤11：基站在对用户设备进行资源调度之前，确定该用户设备在当前CA场景中将要使用的上行频率资源的谐波是否会对用户设备将要使用的下行频率资源产生谐波干扰。
该基站对该用户设备进行资源调度之前，先确定该用户设备在当前CA场景中将要使用的频率资源是否存在谐波干扰。如果该用户设备在当前CA场景中将要使用的上行频率资源的谐波落入该用户设备将要使用的下行频率资源的范围内，则确定该用户设备在当前CA场景中将要使用的上行频率资源的谐波会对该用户设备产生谐波干扰。
步骤12：该基站确定会产生谐波干扰，获取该用户设备的发射功率和该用户设备在当前CA场景中将要使用的上行频率资源的谐波分量与主分量的能量相对值，或者，该用户设备的信道状态质量、该用户设备的发射功率和该用户设备将要使用的上行频率资源的谐波分量与主分量的能量相对值。
可选地，该用户设备的发射功率可以根据该用户设备的配置功率下限和该用户设备上报的功率上升空间确定。该基站获取到的该用户设备的信道状态质量，可以是该用户设备上报的信道状态质量。例如，该用户设备周期性向基站上报信道状态质量，该基站获取的用户设备的信道状态质量可以为：该基站确定该用户设备在当前CA场景中将要使用的上行频率资源的谐波会对该用户设备将要使用的下行频率资源产生谐波干扰时，该用户设备上报的信道状态质量。该用户设备在当前CA场景中将要使用的上行频率资源的谐波分量与主分量的能量相对值可以在建立CA场景时，该基站通知该用户设备上报该能量相对值。该 用户设备在当前CA场景中将要使用的上行频率资源的谐波分量与主分量的能量相对值是个固定值，不随信道状态质量的变化而变化。
步骤13：该基站根据该用户设备的发射功率和该用户设备在当前CA场景中将要使用的上行频率资源的谐波分量与主分量的能量相对值，或者，该用户设备的信道状态质量、该用户设备的发射功率和该用户设备将要使用的所述上行频率资源的谐波分量与主分量的能量相对值，确定该用户设备的受谐波干扰后的参考信号接收质量变化值。
该基站对该用户设备进行资源调度之前，如果确定该用户设备在当前CA场景中将要使用的上行频率资源的谐波会对该用户设备产生谐波干扰，则确定该用户设备受谐波干扰后的参考信号接收质量(Reference Signal Received Quality，简称RSRQ)变化值。该用户设备受谐波干扰后的RSRQ变化值可以根据该用户设备的发射功率、和该用户设备在当前CA场景中将要使用的上行频率资源的谐波分量与主分量的能量相对值确定、另外，该基站还可以根据该用户设备的信道状态质量、该用户设备的发射功率、和该用户设备在当前CA场景中将要使用的上行频率资源的谐波分量与主分量的能量相对值确定RSRQ变化值。
步骤14：该基站确定该用户设备受谐波干扰后的参考信号接收质量变化值超过预设阈值，该基站执行以下至少一种：改变该用户设备将要使用的上行频率资源或下行频率资源，调整该用户设备接收下行信号的编码和调制方案(选择对信噪比的要求低的接收下行信号的编码和调制方案)，增加该用户设备接收信号的功率，减少该用户设备发送信号的功率。
该基站确定该用户设备受谐波干扰后的参考信号接收质量变化值超过预设阈值，该基站确定谐波对该用户设备接收信号的干扰较为严重，则对该用户设备的调度方案进行调整，防止错误的调度动作，以减少谐波对该用户设备接收信号的干扰。如果该用户设备受谐波干扰后的参考信号接收质量变化值没有超过预设阈值，可以不需要对该用户设备的调度方案进行调整。
该基站确定该用户设备受谐波干扰后的参考信号接收质量变化值超过预设阈值，该基站可以改变该用户设备将要使用的上行频率资源或下行频率资源，也就是改变所述用户设备发送信号的频率资源位置，或者改变所述用户设备接收信号的频率资源位置，以避免所述将要使用的下行频率资源落入所述将要使用的上行频率资源的范围内；该基站也可以调整所述用户设备接收下行信号的编码和调制方案(Modulation and Coding Scheme，简称MCS)以降低对信噪比 (Signal to Noise Ratio，简称SNR)的要求；该基站也可以增加所述用户设备接收信号的功率，减少所述用户设备发送信号的功率。
本发明实施例在基站对用户设备进行资源调度之前，基站主动根据用户设备将要使用的频率资源来确定用户设备是否有潜在的谐波干扰，与现有技术中基站根据当前的谐波干扰情况来预测将要使用的频率资源是否潜在的谐波干扰相比，本发明实施例的确定结果较为准确。由于，本发明实施例对用户设备将要使用的频率资源是否存在谐波干扰确定结果比较准确，基站基于比较准确的确定结果发现用户设备将要使用的频率资源存在谐波干扰时，还在用户设备进行资源调度之前，根据用户设备受谐波干扰后的参考信号接收质量变化值与预设阈值之间的大小关系事先对用户设备的调度方案进行调整，避免了错误的调度动作。因此，本发明实施例提供的方法减少了谐波干扰对用户设备接收信号的干扰。另外，本发明不需要用户设备反馈干扰和接收信号相对大小，有效减少了基站与用户设备之间的信令开销。
图2为本发明实施例提供的一种处理谐波干扰的方法流程图。如图2所示，本实施例提供的方法包括：
步骤21：基站在建立当前CA场景时，确定当前CA场景中上行频率资源的谐波是否会对下行频率资源产生谐波干扰。
在CA激活前或CA刚刚激活后，基站根据当前CA场景的特点和准备使用的频率调度策略，确定当前CA场景中上行频率资源的谐波是否会落入下行频率资源的范围，也就是确定当前CA场景中上行频率资源的谐波是否有可能对下行频率资源产生谐波干扰。当前CA场景中频率资源范围会大于用户设备在当前CA场景中使用的频率资源，即使步骤21中基站确定当前CA场景中上行频率资源的谐波可能会对下行频率资源产生谐波干扰，而有可能用户设备使用的频率资源不存在谐波干扰。
步骤22：该基站确定会产生谐波干扰，通知用户设备上报该用户设备在当前CA场景中将要使用的上行频率资源的谐波分量与主分量的能量相对值。
该基站若确定当前CA场景中上行频率资源的谐波不会对下行频率资源产生谐波干扰，则该基站不需要执行后续动作，直接与该用户设备进行通信。
步骤23：该基站接收该用户设备上报的该用户设备在当前CA场景中将要使用的上行频率资源的谐波分量与主分量的能量相对值。
该用户设备在当前CA场景中将要使用的上行频率资源的谐波分量和该用户 设备在当前CA场景中将要使用的上行频率资源的主分量的能量相对值，反映谐波自干扰和主分量的相对大小关系。支持CA的该用户设备维护谐波自干扰和主分量的相对大小关系并上报，例如可以维护如表1所示的关系表，也可以维护反映谐波自干扰和主分量的相对大小关系的拟合曲线。
如图3所示，在band 4和band 17载波聚合场景下，band 4的下行频率资源的范围为(2110～2155)，band 17上行频率资源的3次谐波的范围为(2112～2148)，band 17的3次谐波会和band 4的下行接收重叠，导致band 4接收灵敏度的恶化。在band 4和band 17载波聚合场景下，支持CA的用户设备可以上报如表1的关系表，由于这种CA场景只有3次谐波的干扰问题，因此2次谐波不需要上报。如表1所示，2次谐波不存在谐波干扰，3次谐波是主分量的-120dBc，表示3次谐波的功率比主分量的功率低120dB。2次谐波与主分量的相对大小关系可以用FF或其他数值来代替N/A，N/A表示空值。主分量的功率越大，谐波的功率也越大。
表1为谐波分量与主分量的能量相对值关系表
UL 2次谐波 UL 3次谐波
N/A -120dbc
步骤24：基站在对该用户设备进行资源调度之前，确定该用户设备在当前CA场景中将要使用的上行频率资源的谐波是否会对该用户设备将要使用的下行频率资源产生谐波干扰。
步骤25：该基站若确定会产生谐波干扰，根据该用户设备配置功率下限和该用户设备上报的功率上升空间(英文全称：Power Head Room，英文简写：PHR)和该用户设备配置功率下限，确定用户设备的发射功率。
如果该基站确定该用户设备在当前CA场景中将要使用的上行频率资源的谐波不会对该用户设备将要使用的下行频率资源产生谐波干扰，则该基站不需要执行后续动作，直接与该用户设备进行通信。
该基站根据该用户设备配置功率的下限(Pcmax_L)和该用户设备上报的功率上升空间(PHR)得出用户设备的发射功率(P_ul)，具体地，P_ul＝Pcmax_L-PHR。其中，在小区配置时该基站触发该用户设备上报PHR，PCMAX_L由协议规定。根据协议：PCMAX_L＝MIN{PEMAX–ΔTC,PpowerClass–MAX(MPR+A-MPR+ΔTIB,c,P-MPR)–ΔTC}。
其中，PEMAX为信息元(英文全称：Information Element，英文缩写：IE)配置的该用户设备发射最大功率；ΔTC为最大发射功率在发射带宽的边缘4MHz 可以进行有1.5dB的减少；PPowerClass为该用户设备不考虑公差时的最大发射功率；MPR为该用户设备的最大功率回退，在使用资源块(RB)数较多或者高阶调制时发射的最大功率可以比PPowerClass有所减少；A-MPR为该用户设备的额外最大功率回退，在一些特殊场合，该用户设备发射的最大功率还可以有进一步的减少；ΔTIB,c为该用户设备支持载波聚合时发射功率的偏差，可以比最大发射功率小ΔTIB,c；P-MPR为允许的额外最大功率回退，在该用户设备支持多制式或者进行电磁能量吸收测试时允许进行功率的进一步减少。参数ΔTC、PpowerClass、MPR、A-MPR、ΔTIB,c和P-MPR，可以根据该用户设备所在频段通过协议查找。
步骤26：该基站根据该用户设备的发射功率和该用户设备将要使用的上行频率资源的谐波分量与主分量的能量相对值，确定该用户设备受谐波干扰后的RSRQ变化值。
该用户设备受谐波干扰后的RSRQ可以根据以下公式计算：RSRQ＝N×RSRP/(E-UTRA carrier RSSI+P_interfere)，该用户设备原始上报的RSRQ根据以下公式计算：RSRQ＝N×RSRP/(E-UTRA carrier RSSI)。用户设备受谐波干扰后的RSRQ变化值为：该用户设备受谐波干扰后的RSRQ与用户设备原始上报的RSRQ之间的差值。
其中，P_interfere为该用户设备的谐波泄露到接受带内的功率，P_interfere＝P_ul-IRR，P_ul为该用户设备的发射功率，IRR(Interference Rejection Ratio)为谐波分量抑制度，本发明实施例中IRR采用该用户设备将要使用的上行频率资源的谐波分量与主分量的能量相对值表示。
其中，N为接收信号强度指示(Received Signal Strength Indicator，简称RSSI)测量时使用的资源块(RB)数；RSRP为参考信号接收功率，在测量频率宽度内，以RE(resource element)为单位的接收到的参考信号功率；E-UTRA carrier RSSI为E-UTRA载波接收信号强度指示，在测量带宽内接收到的包含参考信号OFDM symbol天线口0的信号功率。
可选地，该基站确定该用户设备的受谐波干扰后的参考信号接收质量变化值时，还可以参考该用户设备上报的信道状态质量，例如，该用户设备上报的信道质量指示(Channel Quality Indicator，简称CQI)、预编码矩阵指示(Precoding Matrix Indicator，简称PMI)、秩指示(Rank Indication，简称RI)等。该基站参考该用户设备上报的信道状态质量，确定将要进行的调度产生的谐波干扰情况，得到将要进行的调度后信道状态质量情况，然后根据预设阈值，确定是否进行 调度方案的调整。
步骤27：该基站确定该用户设备受谐波干扰后的RSRQ变化值超过预设阈值，执行以下至少一种：改变该用户设备将要使用的上行频率资源或下行频率资源，调整该用户设备接收下行信号的编码和调制方案，增加该用户设备接收信号的功率，减少该用户设备发送信号的功率。
该用户设备受谐波干扰后的RSRQ变化值没有超过预设阈值，可以忽略谐波对该用户设备发射功率的干扰；该用户设备受谐波干扰后的RSRQ变化值超过预设阈值，则不能忽略谐波对该用户设备发射功率的干扰，该基站根据该用户设备上报的信道状态质量对该用户设备的调度方案进行调整。
本实施例中该用户设备对于该用户设备的谐波分量与主分量的能量相对值的反馈只需要在CA激活前或刚刚激活后反馈一次，后期该基站根据该用户设备将要使用的资源调度情况确定该用户设备是否会在要使用的资源调度情况中遇到谐波干扰问题，并根据该用户设备上报的谐波分量与主分量的能量相对值和该用户设备发射功率的大小，预先确定是否需要考虑谐波干扰的影响，如果影响可以忽略则不改变调度策略，如果不能忽略，则将考虑自干扰情况进行调度的调整，并进行处理，防止错误的调度动作。
图4为本发明实施例提供的一种执行处理谐波干扰的方法的基站结构示意图。如图4所示，本实施例提供的基站包括：第一确定模块41、获取模块42、第二确定模块43、第三确定模块44和处理模块45。
第一确定模块41，用于在对用户设备进行资源调度之前，确定所述用户设备在当前载波聚合场景中将要使用的上行频率资源的谐波是否会对所述用户设备将要使用的下行频率资源产生谐波干扰
获取模块42，用于在所述确定模块确定会产生谐波干扰时，获取所述用户设备的发射功率和所述用户设备将要使用的所述上行频率资源的谐波分量与主分量的能量相对值，或者，所述用户设备的信道状态质量、所述用户设备的发射功率和所述用户设备将要使用的所述上行频率资源的谐波分量与主分量的能量相对值。
第二确定模块43，用于根据所述获取模块获取的所述用户设备的发射功率和所述用户设备将要使用的所述上行频率资源的谐波分量与主分量的能量相对值，或者，根据所述获取模块获取的所述用户设备上报的信道状态质量、所述用户设备的发射功率和所述用户设备将要使用的所述上行频率资源的谐波分量 与主分量的能量相对值，确定所述用户设备受谐波干扰后的参考信号接收质量变化值；
第三确定模块44，用于确定所述第二确定模块确定的所述用户设备受谐波干扰后的所述参考信号接收质量变化值是否超过预设阈值；
处理模块45，用于在所述第三确定模块确定所述用户设备的受谐波干扰后的所述参考信号接收质量变化值超过预设阈值，执行以下至少一种：改变所述用户设备将要使用的上行频率资源或下行频率资源，调整所述用户设备接收下行信号的编码和调制方案，增加所述用户设备的接收功率，减少所述用户设备的发射功率。
可选地，获取模块42包括：第一获取模块，所述第一获取模块用于根据所述用户设备的配置功率下限和所述用户设备上报的功率上升空间，确定所述用户设备的发射功率。
可选地，所述获取模块42还包括，第二获取模块，所述第二获取模块用于接收所述用户设备上报的信道状态质量。
可选地，所述获取模块42，第三获取模块，所述第三获取模块用于接收所述用户设备上报的所述用户设备将要使用的所述上行频率资源的谐波分量与主分量的能量相对值。所述获取模块42还包括：触发模块，所述触发模块用于触发所述用户设备上报所述用户设备将要使用的上行频率资源的谐波分量与主分量的能量相对值。本实施例中的基站所执行的方法可参见实施例1及实施例2中的描述，在此不再赘述。
本发明实施例对用户设备将要使用的频率资源是否存在谐波干扰确定结果比较准确，基站基于比较准确的确定结果发现用户设备将要使用的频率资源存在谐波干扰时，还根据用户设备受谐波干扰后的参考信号接收质量变化值与预设阈值之间的大小关系对用户设备进行资源调度之前事先对用户设备的调度方案进行调整，避免了错误的调度动作。因此，本发明实施例提供的基站减少了谐波干扰对用户设备接收信号的干扰。另外，本发明不需要用户设备反馈干扰和接收信号相对大小，有效减少了基站与用户设备之间的信令开销。
如图5所示，本发明实施例还提供另一种基站，该基站包括：存储器51、处理器52、和总线53以及通信接口54。处理器52、存储器51和通信接口54通过总线连接；
存储器51，用于存储程序，处理器52，用于执行所述存储器51中的程序。
所述处理器52被配置为执行如下：
在对用户设备进行资源调度之前，确定用户设备在当前载波聚合场景中将要使用的上行频率资源的谐波是否会对所述用户设备将要使用的下行频率资源产生谐波干扰；
确定会产生谐波干扰时，获取所述用户设备的发射功率和所述用户设备将要使用的所述上行频率资源的谐波分量与主分量的能量相对值，或者，所述用户设备的信道状态质量、所述用户设备的发射功率和所述用户设备将要使用的所述上行频率资源的谐波分量与主分量的能量相对值；
根据所述用户设备的发射功率和所述用户设备将要使用的所述上行频率资源的谐波分量与主分量的能量相对值，或者，所述用户设备上报的信道状态质量、所述用户设备的发射功率和所述用户设备将要使用的所述上行频率资源的谐波分量与主分量的能量相对值，确定所述用户设备受谐波干扰后的参考信号接收质量变化值；
确定所述用户设备受谐波干扰后的所述参考信号接收质量变化值超过预设阈值时，执行以下至少一种：改变所述用户设备将要使用的所述上行频率资源或所述下行频率资源；调整所述用户设备接收下行信号的编码和调制方案；增加所述用户设备的接收功率；或者，减少所述用户设备的发射功率。
本实施例中基站所执行的方法可参见实施例1及实施例2中描述，在此不再赘述。
可选地，所述处理器52还被配置为根据所述用户设备的配置功率下限和所述用户设备上报的功率上升空间，确定所述用户设备的发射功率。
可选地，所述通信接口54被配置为接收所述用户设备上报的信道状态质量。
可选地，所述通信接口54还被配置为接收所述用户设备上报的所述用户设备将要使用的所述上行频率资源的谐波分量与主分量的能量相对值。
可选地，所述处理器52还被配置为在通信接口54接收所述用户设备上报的所述用户设备将要使用的所述上行频率资源的谐波分量与主分量的能量相对值之前，触发所述用户设备上报所述用户设备将要使用的所述上行频率资源的谐波分量与主分量的能量相对值。
本领域普通技术人员可以理解：实现上述各方法实施例的全部或部分步骤可以通过程序指令相关的硬件来完成。前述的程序可以存储于一计算机可读取存储介质中。该程序在执行时，执行包括上述各方法实施例的步骤；而前述的 存储介质包括：ROM、RAM、磁碟或者光盘等各种可以存储程序代码的介质。
最后应说明的是：以上各实施例仅用以说明本发明的技术方案，而非对其限制；尽管参照前述各实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分或者全部技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本发明各实施例技术方案的范围。

Claims (10)

  1. 一种处理谐波干扰的方法，其特征在于，包括：
    基站在对用户设备进行资源调度之前，确定所述用户设备在当前载波聚合场景中将要使用的上行频率资源的谐波是否会对所述用户设备将要使用的下行频率资源产生谐波干扰；
    所述基站确定会产生谐波干扰时，获取所述用户设备的发射功率和所述用户设备将要使用的所述上行频率资源的谐波分量与主分量的能量相对值，或者，所述用户设备的信道状态质量、所述用户设备的发射功率和所述用户设备将要使用的所述上行频率资源的谐波分量与主分量的能量相对值；
    所述基站根据所述用户设备的发射功率和所述用户设备将要使用的所述上行频率资源的谐波分量与主分量的能量相对值，或者，所述用户设备上报的信道状态质量、所述用户设备的发射功率和所述用户设备将要使用的所述上行频率资源的谐波分量与主分量的能量相对值，确定所述用户设备受谐波干扰后的参考信号接收质量变化值；
    所述基站确定所述用户设备受谐波干扰后的所述参考信号接收质量变化值超过预设阈值时，执行以下至少一种：改变所述用户设备将要使用的所述上行频率资源或所述下行频率资源；调整所述用户设备接收下行信号的编码和调制方案；增加所述用户设备的接收功率；或者，减少所述用户设备的发射功率。
  2. 根据权利要求1所述的方法，其特征在于，获取所述用户设备的发射功率包括：
    根据所述用户设备的配置功率下限和所述用户设备上报的功率上升空间，确定所述用户设备的发射功率。
  3. 根据权利要求1或2所述的方法，其特征在于，获取所述用户设备的信道状态质量包括：
    接收所述用户设备上报的信道状态质量。
  4. 根据权利要求1至3任一项所述的方法，其特征在于，获取所述用户设备将要使用的所述上行频率资源的谐波分量与主分量的能量相对值包括：
    接收所述用户设备上报的所述用户设备将要使用的所述上行频率资源的谐波分量与主分量的能量相对值。
  5. 根据权利要求4所述的方法，其特征在于，接收所述用户设备上报的所述用户设备将要使用的所述上行频率资源的谐波分量与主分量的能量相对值之 前，还包括：
    所述基站触发所述用户设备上报所述用户设备将要使用的所述上行频率资源的谐波分量与主分量的能量相对值。
  6. 一种基站，其特征在于，包括：
    第一确定模块，用于在对用户设备进行资源调度之前，确定所述用户设备在当前载波聚合场景中将要使用的上行频率资源的谐波是否会对所述用户设备将要使用的下行频率资源产生谐波干扰；
    获取模块，用于在所述确定模块确定会产生谐波干扰时，获取所述用户设备的发射功率和所述用户设备将要使用的所述上行频率资源的谐波分量与主分量的能量相对值，或者，所述用户设备的信道状态质量、所述用户设备的发射功率和所述用户设备将要使用的所述上行频率资源的谐波分量与主分量的能量相对值；
    第二确定模块，用于根据所述获取模块获取的所述用户设备的发射功率和所述用户设备将要使用的所述上行频率资源的谐波分量与主分量的能量相对值，或者，根据所述获取模块获取的所述用户设备上报的信道状态质量、所述用户设备的发射功率和所述用户设备将要使用的所述上行频率资源的谐波分量与主分量的能量相对值，确定所述用户设备受谐波干扰后的参考信号接收质量变化值；
    第三确定模块，用于确定所述第二确定模块确定的所述用户设备受谐波干扰后的所述参考信号接收质量变化值是否超过预设阈值；
    处理模块，用于在所述第三确定模块确定所述用户设备的受谐波干扰后的所述参考信号接收质量变化值超过预设阈值，执行以下至少一种：改变所述用户设备将要使用的上行频率资源或下行频率资源，调整所述用户设备接收下行信号的编码和调制方案，增加所述用户设备的接收功率，减少所述用户设备的发射功率。
  7. 根据权利要求6所述的基站，其特征在于，所述获取模块包括：第一获取模块，所述第一获取模块用于根据所述用户设备的配置功率下限和所述用户设备上报的功率上升空间，确定所述用户设备的发射功率。
  8. 根据权利要求6或7所述的基站，其特征在于，所述获取模块还包括，第二获取模块，所述第二获取模块用于接收所述用户设备上报的信道状态质量。
  9. 根据权利要求6至8任一项所述的基站，其特征在于，所述获取模块，第 三获取模块，所述第三获取模块用于接收所述用户设备上报的所述用户设备将要使用的所述上行频率资源的谐波分量与主分量的能量相对值。
  10. 根据权利要求9所述的基站，其特征在于，所述获取模块还包括：触发模块，所述触发模块用于触发所述用户设备上报所述用户设备将要使用的上行频率资源的谐波分量与主分量的能量相对值。
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