WO2015100596A1 - 在室内分布***中抑制上行底噪的方法、设备和*** - Google Patents

在室内分布***中抑制上行底噪的方法、设备和*** Download PDF

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Publication number
WO2015100596A1
WO2015100596A1 PCT/CN2013/091062 CN2013091062W WO2015100596A1 WO 2015100596 A1 WO2015100596 A1 WO 2015100596A1 CN 2013091062 W CN2013091062 W CN 2013091062W WO 2015100596 A1 WO2015100596 A1 WO 2015100596A1
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WO
WIPO (PCT)
Prior art keywords
carrier
remote coverage
level
coverage unit
power
Prior art date
Application number
PCT/CN2013/091062
Other languages
English (en)
French (fr)
Inventor
何俊
龚兰平
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 PCT/CN2013/091062 priority Critical patent/WO2015100596A1/zh
Priority to CN201380003833.7A priority patent/CN105122902B/zh
Priority to EP13900590.4A priority patent/EP3079415B1/en
Publication of WO2015100596A1 publication Critical patent/WO2015100596A1/zh

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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
    • H04W52/06—TPC algorithms
    • H04W52/14—Separate analysis of uplink or downlink
    • H04W52/146—Uplink power control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0837—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using pre-detection combining
    • H04B7/0842—Weighted combining
    • H04B7/0848—Joint weighting
    • H04B7/0857—Joint weighting using maximum ratio combining techniques, e.g. signal-to- interference ratio [SIR], received signal strenght indication [RSS]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0837—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using pre-detection combining
    • H04B7/0842—Weighted combining
    • H04B7/0865—Independent weighting, i.e. weights based on own antenna reception parameters
    • 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
    • H04W52/52—TPC using AGC [Automatic Gain Control] circuits or amplifiers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/309—Measuring or estimating channel quality parameters
    • H04B17/318—Received signal strength

Definitions

  • Embodiments of the present invention relate to mobile communication technologies, and, more particularly, to a method, device, and system for suppressing uplink noise in an indoor distribution system.
  • the Universal Mobile Telecommunications System (UMTS) indoor distribution system is mainly used in subways, shopping malls, stadiums, and airports.
  • UMTS Universal Mobile Telecommunications System
  • the so-called co-cell is a cell that is jointly covered by multiple radio radio units (RRUs) sharing the same source.
  • RRUs radio radio units
  • BBU indoor baseband unit
  • the upper cell is the same cell, so the cell parameters such as the number of carriers, the frequency, and the channel configuration of each radio remote unit are the same.
  • a digital combining scheme or a analog combining scheme may be adopted in the uplink receiving direction to superimpose carriers in the common cell.
  • any of the following methods can be used for combining.
  • the radio remote unit is cascaded.
  • the third-level radio remote unit is used as an example.
  • the common cell consists of a first-level radio remote unit, a second-level radio remote unit, and a third-level radio.
  • the remote unit is connected in turn.
  • the first-level radio remote unit After receiving the data sent by the user terminal, the first-level radio remote unit sends the data to the second-level radio remote unit, and the second-level radio remote unit accesses the second-level radio.
  • the data sent by the user terminal of the remote unit is combined with the data sent by the first-level radio remote unit, and the combined data is sent to the third-level radio remote unit, and the third-level radio remote unit is connected.
  • the data sent by the user terminal entering the third-level radio remote unit is combined with the data sent by the second-level radio remote unit, and the combined data is sent to the base station.
  • third The level radio remote unit may also send the combined data to the source access unit, and then send the data to the base station by the source access unit.
  • each radio remote unit does not perform a joint, but is combined by a base station or a source access unit.
  • the third-level radio remote unit is taken as an example for description.
  • the first-level radio remote unit After receiving the data sent by the user terminal, the first-level radio remote unit sends the data to the second-level radio remote unit, and the second-level radio remote unit
  • the data sent by the user terminal connected to the second-level radio remote unit and the data sent by the first-level radio remote unit are respectively sent to the third-level radio remote unit, and the third-level radio remote unit is connected to the third
  • the data sent by the user terminal of the radio remote unit and the two data sent by the second-level radio remote unit are respectively sent to the base station, and the base station combines the three data received by the base station.
  • the third-level radio remote unit may also send the data sent by the user terminal that accesses the third-level radio remote unit to the two-way data sent by the second-level radio remote unit to the source access unit.
  • the source access unit combines the three channels of data received by the source access unit, and sends the combined data to the base station.
  • the direct carrier phase of the common cell will increase the uplink noise
  • the uplink noise refers to the background noise in the uplink signal.
  • SNR signal-to-noise ratio
  • Embodiments of the present invention provide a method, device, and system for suppressing uplink noise in an indoor distribution system to reduce uplink noise after combining.
  • an embodiment of the present invention provides a method for suppressing an uplink noise in an indoor distribution system, including:
  • the gain adjustment device acquires carrier-level uplink user power of the remote coverage unit in the common cell and carrier-level uplink user power of other remote coverage units in the common cell;
  • the gain adjustment device is configured according to a carrier level uplink user power of the remote coverage unit. And determining, at the carrier-level uplink user power of the other remote coverage unit in the common cell, a carrier-level weighting factor of the remote coverage unit;
  • the gain adjustment device adjusts a carrier-level uplink receive gain of the remote coverage unit according to a carrier-level weighting factor of the remote coverage unit, where a carrier-level uplink receive gain of the remote coverage unit is less than zero.
  • an embodiment of the present invention provides a method for suppressing uplink noise in an indoor distribution system, including:
  • the remote coverage unit in the common cell reports the carrier-level uplink user power of the remote coverage unit to the gain adjustment device, so that the gain adjustment device is based on the carrier-level uplink user power of the remote coverage unit and the total
  • the carrier-level uplink user power of other remote coverage units in the cell determining a carrier-level weighting factor of the remote coverage unit;
  • the remote coverage unit receives a carrier-level weighting factor of the remote coverage unit sent by the gain adjustment device;
  • the remote coverage unit adjusts the carrier-level uplink receiving gain of the remote coverage unit according to the carrier-level weighting factor, where the carrier-level uplink receiving gain of the remote coverage unit is less than 0.
  • an embodiment of the present invention provides a gain adjustment apparatus, including:
  • An acquiring module configured to acquire carrier-level uplink user power of a remote coverage unit in a common cell and carrier-level uplink user power of other remote coverage units in the common cell;
  • a determining module configured to determine, according to the carrier-level uplink user power of the remote coverage unit and the carrier-level uplink user power of the other remote coverage unit, the carrier-level weight of the remote coverage unit Factor
  • a gain adjustment module configured to adjust a carrier-level uplink receiving gain of the remote coverage unit according to a carrier-level weighting factor of the remote coverage unit determined by the determining module, where a carrier level of the remote coverage unit The uplink receive gain is less than zero.
  • an embodiment of the present invention provides a remote coverage unit, including:
  • the power reporting module is configured to report the carrier-level uplink user power of the remote coverage unit in the common cell to the gain adjustment device, so that the gain adjustment device is configured according to the carrier-level uplink user power of the remote coverage unit and the common cell a carrier-level uplink user power of the other remote coverage unit, determining a carrier-level weighting factor of the remote coverage unit; a receiving module, configured to receive a carrier-level weighting factor of the remote coverage unit that is sent by the gain adjustment device;
  • a gain adjustment module configured to adjust a carrier-level uplink receiving gain of the remote coverage unit according to a carrier-level weighting factor of the remote coverage unit received by the receiving module, where a carrier of the remote coverage unit The level uplink receive gain is less than zero.
  • a fifth aspect of the present invention provides a gain adjustment apparatus, including:
  • a transceiver configured to communicate with a remote coverage unit in a common cell
  • a processor configured to acquire carrier-level uplink user power of a remote coverage unit in a common cell and carrier-level uplink user power of other remote coverage units in the common cell;
  • the processor is further configured to determine, according to the carrier-level uplink user power of the remote coverage unit and the carrier-level uplink user power of other remote coverage units in the common cell, the remote coverage unit Carrier level weighting factor;
  • the processor is further configured to adjust a carrier-level uplink receiving gain of the remote coverage unit according to a carrier-level weighting factor of the remote coverage unit, where a carrier-level uplink receiving gain of the remote coverage unit is less than 0.
  • an embodiment of the present invention provides a remote coverage unit, including:
  • a transmitter configured to report the carrier-level uplink user power of the remote coverage unit in the common cell to the gain adjustment device, so that the gain adjustment device is based on the carrier-level uplink user power of the remote coverage unit and the total The carrier-level uplink user power of other remote coverage units in the cell, determining a carrier-level weighting factor of the remote coverage unit;
  • a receiver configured to receive a carrier-level weighting factor of the remote coverage unit sent by the gain adjustment device
  • a processor configured to adjust a carrier-level uplink receiving gain of the remote coverage unit according to a carrier-level weight of the remote coverage unit received by the receiver, where the remote-level coverage unit performs carrier-level uplink reception The gain is less than zero.
  • a system for suppressing uplink noise is provided by the embodiment of the present invention, including the foregoing gain adjustment device and the remote coverage unit.
  • Embodiments of the present invention provide a method, device, and system for suppressing uplink noise in an indoor distribution system, and the gain adjustment device adjusts the remote coverage according to a carrier-level weighting factor of a remote coverage unit.
  • the carrier-level uplink receive gain of the 101 output power unit Since the carrier-level uplink receiving gain is ⁇ ⁇ , The uplink receiving gain is less than 0. Therefore, the uplink noise of each carrier can be reduced before the combining, so that the power of the uplink noise after the combining can be reduced, thereby reducing the uplink noise after the combining. purpose. BRIEF DESCRIPTION OF THE DRAWINGS In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, a brief description of the drawings used in the embodiments or the prior art description will be briefly described below. The drawings are some embodiments of the present invention, and those skilled in the art can obtain other drawings based on these drawings without any inventive labor.
  • FIG. 1 is a schematic diagram of a network structure of a common cell to which the present invention is applied;
  • FIG. 2 is a flowchart of a method for suppressing uplink noise in an indoor distribution system according to an embodiment of the present invention
  • FIG. 3 is a flowchart of another method for suppressing uplink noise in an indoor distribution system according to an embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of a gain adjustment apparatus according to an embodiment of the present invention
  • FIG. 6 is a schematic structural diagram of a remote coverage unit according to an embodiment of the present invention
  • FIG. 7 is another gain provided by an embodiment of the present invention.
  • FIG. 8 is a schematic structural diagram of another remote coverage unit according to an embodiment of the present invention;
  • FIG. 9 is a schematic structural diagram of a system for suppressing uplink noise provided by an embodiment of the present invention.
  • FIG. 1 is a schematic diagram of a network structure of a common cell to which the present invention is applied. As shown in FIG. 1 , the common cell has a total of six remote coverage units, wherein the first remote coverage unit and the second remote coverage unit. The third remote coverage unit is sequentially connected to form a first cascading system, and the fourth remote coverage unit, the fifth remote coverage unit, and the sixth remote coverage unit are sequentially connected to form a second cascading system.
  • the first cascading system and the second cascading system jointly cover the common cell, and each remote coverage unit can be cascaded through an optical fiber, and the remote coverage unit as a root node in the cascading system is directly connected to the base station or the near end module.
  • the first remote coverage unit in the first cascading system, is used as a root node, and is directly connected to the near-end module, and the near-end module is connected to the base station; in the second remote cascading system, the fourth The remote coverage unit is directly connected to the near-end module as a root node, and the near-end module is connected to the base station.
  • the remote coverage unit as the root node can also directly connect to the base station directly.
  • the remote coverage unit may be a remote radio remote unit or a distributed antenna system or a repeater, and the repeater is also called a repeater.
  • the near-end module may be a source access unit, and the source access unit is a physical access device.
  • FIG. 1 is only an example, and the embodiment of the present invention does not limit the number of remote coverage units in a common cell.
  • FIG. 1 is only schematic, and the embodiment of the present invention does not limit the number of cascading systems in the common cell.
  • the embodiment of the present invention can also be applied to other indoor distribution systems, such as a CDMA (Code Division Multiple Access) indoor distribution system.
  • CDMA Code Division Multiple Access
  • the common cell may support single carrier communication or multi-carrier communication. If the common cell uses multi-carrier communication, when the user terminal accesses the UMTS by using different carriers, the uplink user power and the noise power of the user terminal may be different on different carriers, and therefore, in various embodiments of the present invention,
  • the gain adjustment device adjusts the uplink reception gain of each carrier. For example, when the common cell supports two carrier communications, when measuring the uplink user power of each remote coverage unit, the gain adjustment device separately measures the uplink user power corresponding to the two carriers according to the same method, and adjusts the two respectively.
  • the corresponding uplink receiving gain of the carrier where the uplink user power corresponding to each carrier is also referred to as carrier-level uplink user power, and the uplink receiving gain corresponding to each carrier is also referred to as carrier-level uplink receiving gain.
  • the embodiment of the present invention does not limit the number of carriers supported by the common cell.
  • the gain adjustment device determines the carrier-level weighting factor of each remote coverage unit according to the carrier-level uplink user power of each remote coverage unit, and adjusts each according to the carrier-level weighting factor of each remote coverage unit.
  • the carrier-level uplink receive gain of the remote coverage unit is also referred to as carrier-level uplink user power, and the uplink receiving gain corresponding to each carrier.
  • the remote coverage unit For a remote coverage unit with a large number of user terminals, the remote coverage unit has a large carrier-level weighting factor, and the remote coverage unit has a carrier-level uplink reception gain.
  • the carrier-level weighting factor of the remote coverage unit is small, and the carrier-level uplink reception gain of the remote coverage unit is also small.
  • Step 101 A gain adjustment device acquires carrier-level uplink user power of a remote coverage unit in a common cell and carrier-level uplink user power of other remote coverage units in a common cell.
  • the gain adjustment device needs to acquire the carrier-level uplink user power of a remote coverage unit in the common cell and the carrier-level uplink user power of the other remote coverage unit except the one remote coverage unit in the common cell.
  • the carrier-level uplink user power refers to the power of the uplink user signal received by the remote coverage unit on each carrier, and does not include carrier-level noise power.
  • the gain adjustment device can obtain the carrier-level uplink user power of the remote coverage unit and the carrier-level uplink user power of other remote coverage units in the common cell in one of the following two ways: The first acquisition mode, the gain adjustment device receives the The carrier-level uplink user power of the remote coverage unit reported by the remote coverage unit and the carrier-level uplink user power of other remote coverage units reported by other remote coverage units. In the first mode, each remote coverage unit detects its own carrier-level uplink user power, and periodically reports the carrier-level uplink user power to the gain adjustment device.
  • the gain adjustment device detects the carrier-level uplink user power of each remote coverage unit. Specifically, the gain adjustment device detects the carrier-level uplink total power and carrier-level noise power of the remote coverage unit, and detects a total of The carrier-level uplink total power and the carrier-level noise power of the other remote coverage units in the cell, and the gain adjustment device determines the carrier-level uplink of the remote coverage unit according to the carrier-level uplink total power and carrier-level noise power of the remote coverage unit.
  • User power according to the carrier-level uplink total power and carrier-level noise power of other remote coverage units in the common cell, determining the common cell His remote coverage unit's carrier-level uplink user power.
  • the gain adjustment device can obtain the carrier-level uplink total power of each remote coverage unit by detecting the total power of the uplink receiving channel, and subtract the carrier-level noise power from the carrier-level uplink total power to obtain the carrier-level uplink. User power.
  • the gain adjustment device can periodically detect the carrier-level uplink total power and carrier-level noise power of each remote coverage unit, and the detection period can be adjusted as needed.
  • Step 102 The gain adjustment device determines a carrier-level weighting factor of the remote coverage unit according to the carrier-level uplink user power of the remote coverage unit and the carrier-level uplink user power of other remote coverage units in the common cell.
  • the gain adjustment device may determine the carrier-level weighting factor of the remote coverage unit according to the carrier-level uplink user power of the remote coverage unit and the carrier-level uplink user power of other remote coverage units in the common cell. Specifically, the gain adjustment device adds the carrier-level uplink user power of the remote coverage unit and the carrier-level uplink user power of other remote coverage units in the common cell to obtain the total power of the carrier-level uplink user in the common cell, according to the far
  • the ratio of the carrier-level uplink user power of the edge coverage unit to the total carrier-level uplink user power in the common cell determines the carrier-level weighting factor of the remote coverage unit.
  • the gain adjustment device uses the ratio as the carrier weight factor of the remote coverage unit; in another implementation, the gain adjustment device can appropriately adjust the ratio, and the adjusted value is used. As the carrier-level weighting factor of the remote coverage unit.
  • the gain adjustment device obtains two carrier-level weighting factors, that is, the carrier level corresponding to the carrier fl.
  • the gain adjustment device may obtain the carrier level corresponding to the carrier fl according to the carrier-level uplink user power corresponding to the carrier fl and the carrier-level uplink total power in the common cell.
  • the weighting factor in the same way, the gain adjustment device can also obtain the carrier-level weighting factor corresponding to the carrier f2.
  • the gain adjustment device obtains a carrier-level weighting factor corresponding to each carrier.
  • Step 103 The gain adjustment device adjusts the carrier-level uplink receiving gain of the remote coverage unit according to the carrier-level weighting factor of the remote coverage unit, where the carrier-level uplink receiving gain of the remote coverage unit is less than 0 (excluding 0).
  • the gain adjustment device adjusts the carrier-level uplink receive gain of the remote coverage unit to 1Q 1 g ( ⁇ decibel ( dB ) according to the carrier-level weighting factor of the remote coverage unit, where, N Indicates the carrier-level weighting factor of the remote coverage unit, 0 ⁇ N ⁇ 1, that is, the gain of the uplink signal sent by the remote coverage unit is adjusted to 1Q 1 g(W) ⁇ .
  • the gain adjustment device sends a gain adjustment indication message to the remote coverage unit, where the gain adjustment indication message carries a carrier-level weighting factor of the remote coverage unit, to indicate that the remote coverage unit adjusts the remote end according to the carrier-level weighting factor Covering the carrier-level uplink receiving gain of the unit, after receiving the gain adjustment indication message, the remote coverage unit adjusts the carrier-level uplink receiving gain of the received uplink received signal according to the carrier-level weighting factor carried in the gain adjustment indication message.
  • the gain adjustment device adjusts the carrier-level uplink receiving gain of the remote coverage unit according to the carrier-level weighting factor of the remote coverage unit. Due to the carrier level uplink
  • the receiving gain is g i, and the uplink receiving gain is less than 0. Therefore, the power of the uplink noise in each carrier can be reduced before the combining, so that the power of the uplink noise after the combining can be reduced, thereby achieving Reduce the purpose of the uplink noise after the combination.
  • FIG. 3 is a flowchart of another method for suppressing uplink noise in an indoor distribution system according to an embodiment of the present invention.
  • the common cell includes two remote coverage units, which are a first remote unit and a second remote coverage unit, and the two remote coverage units are connected in cascade.
  • the method provided in this embodiment includes the following steps:
  • Step 201 The gain adjustment device detects a carrier-level uplink power and a carrier-level noise power of the first remote coverage unit in the common cell.
  • the gain adjustment device may periodically detect the carrier-level uplink total power and carrier-level noise power of the first remote coverage unit in the common cell, and the carrier-level uplink total power includes carrier-level uplink user power and carrier-level noise.
  • the power, gain adjustment device may obtain the carrier-level uplink total power of the first remote coverage unit by detecting the total power of the uplink receiving channel of the first remote coverage unit.
  • the method for detecting the power may use various detection methods in the prior art, and may use an analog detection circuit or a digital detection circuit, which is not limited in the embodiment of the present invention.
  • the first remote coverage unit may also detect carrier-level uplink total power and carrier-level noise power, and report the detection result to the gain adjustment device.
  • Step 202 The gain adjustment device detects carrier-level uplink total power and carrier-level noise power of the second remote coverage unit in the common cell.
  • the gain adjustment device may detect the carrier-level uplink total power and the carrier-level noise power of the second remote coverage unit by using the method described in step 201, and details are not described herein again.
  • steps 201 and 202 are not executed in sequence.
  • Step 203 The gain adjustment device determines, according to the carrier-level uplink total power and the carrier-level noise power of the first remote coverage unit, the carrier-level uplink user power of the first remote coverage unit.
  • the gain adjustment device may subtract the carrier-level noise power of the first remote coverage unit from the carrier-level uplink total power of the first remote coverage unit to obtain the carrier-level uplink user power of the first remote coverage unit.
  • Step 204 The gain adjustment device determines, according to the carrier-level uplink total power and the carrier-level noise power of the second remote coverage unit, the carrier-level uplink user power of the second remote coverage unit.
  • the gain adjustment device may subtract the carrier-level noise power of the second remote coverage unit from the carrier-level uplink total power of the second remote coverage unit to obtain the carrier-level uplink user power of the second remote coverage unit.
  • Step 205 The gain adjustment device adds the carrier-level uplink user power of the first remote coverage unit and the carrier-level uplink user power of the second remote coverage unit to obtain the total user power of the carrier-level uplink in the common cell.
  • both the first remote coverage unit and the second remote coverage unit support only single carrier communication
  • the carrier-level uplink user power of the first remote coverage unit is x ( x > o )
  • second The carrier-level uplink user power of the remote coverage unit is ⁇ ( ⁇ > 0 )
  • the carrier-level noise power of the first remote coverage unit and the second remote coverage unit are both ⁇ ( ⁇ > 0 ).
  • the total power of the carrier-level uplink user in the common cell is equal to the sum of the carrier-level uplink user power of the first remote coverage unit and the carrier-level uplink user power of the second remote coverage unit, that is, the total carrier-level uplink user in the common cell.
  • the power is X+Y.
  • the total power of the carrier-level uplink users in the common cell is the sum of the uplink user power of each carrier-level of each remote coverage unit in the common cell.
  • the total power of the carrier-level uplink users in the common cell refers to each of fl, f2, f3, and f4.
  • Carrier corresponding to the uplink The sum of household power.
  • Step 206 The gain adjustment device determines a carrier-level weighting factor of the first remote coverage unit according to a ratio of a carrier-level uplink user power of the first remote coverage unit to a carrier-level uplink user total power in the common cell.
  • the gain adjustment device may use the ratio of the carrier-level uplink user power of the first remote coverage unit to the carrier-level uplink user power in the common cell as the carrier of the first remote coverage unit.
  • the weight factor of the stage that is, the carrier-level weighting factor of the first remote coverage unit is ⁇ .
  • the carrier-level weighting factor of the second remote coverage unit is ⁇ 7 .
  • Step 207 The gain adjustment device adjusts, according to the carrier-level weighting factor of the first remote coverage unit, the gain of the carrier-level uplink received signal sent by the first remote coverage unit to 1Q 1 g(W) ⁇ , where w is the first A carrier-level weighting factor of a remote coverage unit. That is, the gain adjustment device adjusts the carrier-level uplink reception gain of the first remote coverage unit to 101 g (A ⁇ , W is the carrier-level weighting factor of the first remote coverage unit, and 0 ⁇ N ⁇ 1.
  • the gain adjustment device will receive the carrier-level uplink reception of the first remote coverage unit
  • the gain is adjusted to x + y. Because of this, the carrier-level uplink receive gain of the first remote coverage unit is less than 0 (excluding 0). According to the following relationship between power and gain, when the gain is less than 0, the output power is less than the input power. When the power of the carrier-level uplink signal is adjusted, the uplink noise of the carrier-level uplink signal is also performed. Adjustment. That is to say, after adjusting the carrier-level uplink receiving gain of the first remote coverage unit, the carrier-level noise power of the first remote coverage unit can be reduced.
  • the carrier level of the first remote coverage unit is a specific example.
  • the carrier level of the first remote coverage unit is a specific example.
  • Zx-Zx- noise power is x + y
  • the carrier-level noise power of the second far-end coverage unit is x + y.
  • the method provided in this embodiment can reduce the power of the uplink noise after the combination and reduce the uplink noise after the combination. If expressed in terms of gain, the carrier-level noise function of the first remote coverage unit , second remote coverage unit carrier level noise ⁇
  • the sound power gain is... z ' -x + r admir.
  • the method provided by the embodiment of the invention can not only reduce the power of the uplink noise floor after the uplink received signal is combined, but also improve the far-end coverage unit with a large carrier-level weighting factor.
  • Signal-to-noise ratio The signal-to-noise ratio of the first remote coverage unit is the ratio of the carrier-level user power of the first remote coverage unit to the carrier-level noise power of the first remote coverage unit, and when expressed by the gain, the first far End coverage
  • ⁇ 2 is required, that is, ⁇ is required. Therefore, by reducing the uplink receiving gain of the far-end coverage unit carrier level, the signal-to-noise ratio of the remote coverage unit with large user power can also be improved. and, The greater the difference in user power between the two remote coverage units, the more obvious the improvement of the signal-to-noise ratio for the remote coverage unit with large user power, and the increase of the coverage radius of each remote coverage unit and the improvement of the user terminal.
  • the success rate of access to UMTS can increase the uplink throughput of the UMTS indoor distribution system from the perspective of the entire UMTS indoor distribution system.
  • the gain adjustment device adjusts the carrier-level uplink receiving gain of the remote coverage unit according to the carrier-level weighting factor of the remote coverage unit. Due to the carrier level uplink reception
  • FIG. 4 is a flowchart of still another method for suppressing uplink noise in an indoor distribution system according to an embodiment of the present invention. As shown in FIG. 4, the method provided in this embodiment includes the following steps:
  • Step 301 The remote coverage unit in the common cell reports the carrier-level uplink user power of the remote coverage unit to the gain adjustment device, so that the gain adjustment device according to the carrier-level uplink user power of the remote coverage unit and other components in the common cell
  • the carrier-level uplink user power of the remote coverage unit determines the carrier-level weighting factor of the remote coverage unit.
  • the first remote coverage unit in the common cell and the other remote coverage units except the one remote coverage unit in the common cell report the uplink user power to the gain adjustment device, that is, the common cell.
  • Each remote coverage unit in the network reports its own carrier-level uplink user power to the gain adjustment device.
  • the gain adjustment device obtains the uplink user power of the remote coverage unit and other remote coverage units in the common cell
  • the uplink user power of the remote coverage unit and the carrier level uplink of other remote coverage units in the common cell are obtained.
  • the method for determining the carrier-level weighting factor of the remote coverage unit according to the carrier-level uplink user power of the remote coverage unit and the carrier-level uplink user power of other remote coverage units in the common cell may refer to the first embodiment and the implementation. The related description in the second example will not be described here.
  • the remote coverage unit needs to obtain the carrier-level uplink user power of the remote coverage unit before reporting the carrier-level uplink user power to the gain adjustment device. Specifically, the remote coverage unit detects its own carrier-level uplink total power. And carrier-level noise power, then, the far end The coverage unit can obtain the carrier-level uplink user power of the remote coverage unit by subtracting the carrier-level noise power from the carrier-level uplink total power of the remote coverage unit.
  • Step 302 The remote coverage unit receives a carrier-level weighting factor of the remote coverage unit sent by the gain adjustment device.
  • the gain adjustment device After determining the carrier-level weighting factor of the remote coverage unit, the gain adjustment device sends the carrier-level weighting factor of the remote coverage unit to the remote coverage unit.
  • Step 303 The remote coverage unit adjusts a carrier-level uplink receiving gain of the remote coverage unit according to a carrier-level weighting factor, where a carrier-level uplink receiving gain of the remote coverage unit is less than 0.
  • the remote coverage unit adjusts the carrier-level uplink receive gain of the remote coverage unit to 1 Q1 g(w) according to a carrier-level weighting factor, where W is the remote coverage unit.
  • the remote coverage unit adjusts the uplink receiving gain of the remote coverage unit according to the carrier-level weighting factor of the remote coverage unit sent by the gain adjustment device. Because of this
  • the carrier-level uplink receiving gain is ⁇ Yu Hao Hao, and the uplink receiving gain is less than 0. Therefore, the uplink noise floor power of each carrier can be reduced before the combining, so that the uplink noise of the combined channel can be reduced, thereby The purpose of reducing the uplink noise after the combination is achieved.
  • FIG. 5 is a schematic structural diagram of a gain adjustment device according to an embodiment of the present invention.
  • the gain adjustment device in this embodiment may be a base station or a near-end module.
  • the gain adjustment apparatus provided in this embodiment includes:
  • the obtaining module 41 is configured to acquire carrier-level uplink user power of the remote coverage unit in the common cell and carrier-level uplink user power of other remote coverage units in the common cell;
  • the determining module 42 is configured to determine a carrier-level weighting factor of the remote coverage unit according to the carrier-level uplink user power of the remote coverage unit and the carrier-level uplink user power of the other remote coverage unit acquired by the obtaining module 41;
  • the gain adjustment module 43 is configured to adjust a carrier-level uplink receiving gain of the remote coverage unit according to the carrier-level weighting factor of the remote coverage unit determined by the determining module 42, where the carrier-level uplink receiving gain of the remote coverage unit Less than 0.
  • the acquiring module 41 can obtain the carrier-level uplink user power of the remote coverage unit in the following two manners.
  • the acquiring module 41 receives the remote coverage unit and reports the remote coverage unit.
  • the carrier-level uplink user power of the remote coverage unit and the carrier-level uplink user power of other remote coverage units reported by other remote coverage units, and the remote coverage unit and other remote coverage units in the common cell determine themselves
  • the carrier-level uplink user power is then reported to the gain adjustment device.
  • the obtaining module 41 detects carrier-level uplink total power and carrier-level noise power of the remote coverage unit in the common cell, and detects carrier-level uplink total power and carrier level of other remote coverage units in the common cell.
  • the noise power is obtained.
  • the obtaining module 41 determines the carrier-level uplink user power of the remote coverage unit according to the carrier-level uplink total power and the carrier-level noise power of the remote coverage unit in the common cell; and according to other remote ends in the common cell. Covering the carrier-level uplink total power and carrier-level noise power of the unit, determining carrier-level uplink user power of other remote coverage units in the common cell.
  • the obtaining module 41 determines, according to the carrier-level uplink total power and the carrier-level noise power of the remote coverage unit in the common cell, the carrier-level uplink user power of the remote coverage unit, specifically: the acquiring module 41 will be the remote terminal in the common cell.
  • the carrier-level uplink user power of the remote coverage unit can be obtained by subtracting the carrier-level noise power of the remote coverage unit in the common cell from the carrier-level uplink total power of the coverage unit.
  • the obtaining module 41 determines the carrier-level uplink user power of other remote coverage units in the common cell according to the carrier-level uplink total power and the carrier-level noise power of the other remote coverage units in the common cell, specifically: the acquiring module 41 will be in the common cell.
  • the carrier-level uplink total power of other remote coverage units minus the carrier-level noise power of other remote coverage units can obtain the carrier-level uplink user power of other remote coverage units in the common cell.
  • the determining module 42 is specifically configured to: add the carrier-level uplink user power of the remote coverage unit acquired by the obtaining module 41 and the carrier-level uplink user power of other remote coverage units in the common cell acquired by the obtaining module 41, to obtain a common cell.
  • the determining module 42 determines the carrier-level weighting factor of the remote coverage unit according to the ratio of the carrier-level uplink user power of the remote coverage unit to the carrier-level uplink user total power in the common cell, specifically: the determining module 42 takes the far The ratio of the carrier-level uplink user power of the edge coverage unit to the total carrier-level uplink user power in the common cell is used as the carrier weight factor of the remote coverage unit.
  • the gain adjustment module 43 sends a gain adjustment indication message to the remote coverage unit, where the gain adjustment indication message carries the carrier-level weighting factor of the remote coverage unit. And the remote coverage unit adjusts the carrier-level uplink receiving gain of the remote coverage unit according to the carrier-level weighting factor, and after receiving the gain adjustment indication message, the remote coverage unit carries the information according to the gain adjustment indication message.
  • the carrier-level weighting factor adjusts the carrier-level uplink receiving gain of the received uplink received signal to 101 g(N).
  • the gain adjustment module 43 adjusts the carrier-level uplink receive gain of the remote coverage unit to 101 g (N) decibel according to the carrier-level weighting factor of the remote coverage unit, where N represents The carrier-level weighting factor of the remote coverage unit, Q ⁇ N ⁇ 1, that is, the gain of the uplink signal sent by the remote coverage unit is adjusted to 101 g (N).
  • the gain adjustment device provided in this embodiment can be used to implement the technical solutions provided in the first embodiment and the second embodiment.
  • the specific implementation and technical effects are similar.
  • FIG. 6 is a schematic structural diagram of a remote coverage unit according to an embodiment of the present invention. As shown in FIG. 6, the remote coverage unit provided in this embodiment includes:
  • the power reporting module 51 is configured to report the carrier-level uplink user power of the remote coverage unit in the common cell to the gain adjustment device 50, so that the gain adjustment device 50 is based on the carrier-level uplink user power of the remote coverage unit and the common cell. Carrier-level uplink user power of other remote coverage units, determining a carrier-level weighting factor of the remote coverage unit;
  • the receiving module 52 is configured to receive a carrier level weighting factor of the remote coverage unit sent by the gain adjustment device 50;
  • the gain adjustment module 53 is configured to adjust a carrier-level uplink receiving gain of the remote coverage unit according to the carrier-level weighting factor of the remote coverage unit received by the receiving module 52, where the remote-level coverage unit has a carrier-level uplink receiving gain. Less than 0.
  • the gain adjustment module 53 is specifically configured to: adjust a carrier-level uplink receive gain of the remote coverage unit to 101 g(N) according to a carrier-level weighting factor of the remote coverage unit, where N is a carrier of the remote coverage unit Level weight factor, and 0 ⁇ N ⁇ 1.
  • the remote coverage unit may further include: a power detection module, configured to detect carrier-level uplink total power and carrier-level noise power of the remote coverage unit; and a power determining module, configured to use the remote coverage unit The carrier-level uplink total power is subtracted from the carrier-level noise power of the remote coverage unit, and the carrier-level uplink user power of the remote coverage unit is obtained.
  • a power detection module configured to detect carrier-level uplink total power and carrier-level noise power of the remote coverage unit
  • a power determining module configured to use the remote coverage unit The carrier-level uplink total power is subtracted from the carrier-level noise power of the remote coverage unit, and the carrier-level uplink user power of the remote coverage unit is obtained.
  • the remote coverage unit provided in this embodiment may be used to implement the technology provided in the third embodiment of the method.
  • the specific implementation manners and the technical effects are similar.
  • FIG. 7 is a schematic structural diagram of Embodiment 2 of another gain adjustment apparatus according to an embodiment of the present invention.
  • the gain adjustment apparatus may be a base station or a near-end module, as shown in FIG. 7 , the gain provided in this embodiment.
  • the adjustment device 600 includes: a processor 61, a transceiver 63.
  • the transceiver 63 is coupled to the processor 61 via a bus.
  • the gain adjustment apparatus provided in this embodiment may further include: a memory 62, wherein the memory 62 stores an execution instruction, when the gain adjustment apparatus 600 is in operation, the processor 61 communicates with the memory 62, and the processor 61 executes the execution instruction to make the gain adjustment Apparatus 600 performs the method of suppressing uplink noise in an indoor distribution system provided by the present invention.
  • the transceiver 63 is configured to communicate with a remote coverage unit in the common cell;
  • the processor 61 is configured to acquire carrier-level uplink user power of the remote coverage unit in the common cell and carrier-level uplink user power of other remote coverage units in the common cell;
  • the processor 61 is further configured to determine, according to the carrier-level uplink user power of the remote coverage unit and the carrier-level uplink user power of other remote coverage units in the common cell, the carrier-level weight of the remote coverage unit.
  • the processor 61 is further configured to adjust a carrier-level uplink receiving gain of the remote coverage unit according to a carrier-level weighting factor of the remote coverage unit, where the carrier-level uplink receiving gain of the remote coverage unit is less than 0.
  • the processor 61 when the processor 61 adjusts the carrier-level uplink receiving gain of the remote coverage unit, the processor 61 may be specifically configured to send, by using the transceiver 63, a gain adjustment indication message to the remote coverage unit, where the gain adjustment indication message is carried.
  • the carrier-level weighting factor determined by the processor 61 is to indicate that the remote coverage unit adjusts the carrier-level uplink receiving gain according to the carrier-level weighting factor.
  • the processor 61 may be specifically configured to: adjust, according to the carrier-level weighting factor of the remote coverage unit, the carrier-level uplink receiving gain of the remote coverage unit to 101 g (N) , where N is the carrier-level weighting factor of the far-end coverage unit, and 0 ⁇ N ⁇ 1.
  • the processor 61 may obtain the carrier-level user power of the remote coverage unit in the common cell and the carrier-level user power of other remote coverage units in the common cell in any one of the following manners.
  • the processor 61 detects carrier-level uplink total power and carrier-level noise power of the remote coverage unit in the common cell; and detects the common cell
  • the remote end covers the carrier-level uplink total power and the carrier-level noise power of the unit; then, the processor 61 determines the remote end in the common cell according to the carrier-level uplink total power and the carrier-level noise power of the remote coverage unit in the common cell.
  • the processor 61 subtracts the carrier-level uplink power of the remote coverage unit in the common cell from the carrier-level uplink power of the remote coverage unit in the common cell, and obtains the carrier-level uplink user power of the remote coverage unit.
  • the carrier-level uplink power of other remote coverage units in the common cell is subtracted from the carrier-level noise power of other remote coverage units, and the carrier-level uplink user power of other remote coverage units in the common cell is obtained.
  • the processor 61 receives the carrier-level uplink user power reported by the remote coverage unit and the carrier-level uplink user power reported by the other remote coverage unit.
  • the processor 61 is specifically configured to determine a carrier-level weighting factor of the remote coverage unit by: the processor 61 acquires the carrier-level uplink user power of the remote coverage unit acquired by the processor 61 and the common cell acquired by the processor 61. The carrier-level uplink user powers of the other remote coverage units are added to obtain the carrier-level uplink user total power in the common cell. Then, the processor 61 is based on the carrier-level uplink user power of the remote coverage unit and the carrier-level uplink user total in the common cell. The ratio of the powers determines the carrier-level weighting factor of the remote coverage unit. The processor 61 may use the ratio of the carrier-level uplink user power of the remote coverage unit to the carrier-level uplink user total power in the common cell as the carrier weight factor of the remote coverage unit.
  • the gain adjustment device provided in this embodiment can be used to implement the technical solutions provided in the first embodiment and the second embodiment.
  • the specific implementation and technical effects are similar.
  • FIG. 8 is a schematic structural diagram of another remote coverage unit according to an embodiment of the present invention.
  • the remote coverage unit 700 provided in this embodiment includes: a processor 71, a transmitter 73, and a receiver 74. Transmitter 73 and receiver 74 are coupled to processor 71 via a bus.
  • the remote coverage unit provided in this embodiment may further include a memory 72, wherein the memory 72 stores execution instructions, when the remote coverage unit 700 is running, the processor 71 communicates with the memory 72, and the processor 71 executes execution instructions to make the far
  • the end coverage unit 700 performs the method of suppressing the uplink noise in the indoor distribution system provided by the present invention.
  • the transmitter 73 is configured to report the remote coverage unit in the common cell to the gain adjustment device.
  • Carrier-level uplink user power so that the gain adjustment device determines the carrier-level weight of the remote coverage unit according to the carrier-level uplink user power of the remote coverage unit and the carrier-level uplink user power of other remote coverage units in the common cell. factor;
  • a receiver 74 configured to receive a carrier-level weighting factor of the remote coverage unit sent by the gain adjustment device
  • the processor 71 is configured to adjust the carrier-level uplink receiving gain of the remote coverage unit according to the carrier-level weight of the remote coverage unit received by the receiver 74, where the carrier-level uplink receiving gain of the remote coverage unit is less than 0. .
  • the processor 71 is specifically configured to: adjust a carrier-level uplink receiving gain of the remote coverage unit to 101 g (N) according to a carrier-level weighting factor of the remote coverage unit, where N is a carrier of the remote coverage unit Level weight factor, and 0 ⁇ N ⁇ 1.
  • the processor 71 is further configured to: detect a carrier-level uplink total power and a carrier-level noise power of the remote coverage unit; and subtract the carrier-level uplink total power of the remote coverage unit from the remote coverage unit.
  • the carrier-level noise power is obtained, and the carrier-level uplink user power of the remote coverage unit is obtained.
  • the remote coverage unit provided in this embodiment may be used to perform the technical solution provided in the third embodiment of the method.
  • the specific implementation is similar to the technical effect.
  • FIG. 9 is a schematic structural diagram of a system for suppressing uplink noise provided by an embodiment of the present invention.
  • the system for suppressing uplink noise provided by the embodiment includes a gain adjustment device 81 and a remote coverage unit 82.
  • the gain adjustment device 81 may be any one of the above-mentioned embodiments
  • the remote coverage unit 82 may be any remote coverage unit in the above embodiment.
  • a plurality of remote coverage units may be included. There is no limit to the number of remote coverage units.
  • the aforementioned program can be stored in a computer readable storage medium.
  • the program when executed, performs the steps including the above-described 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.

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Abstract

　本发明实施例提供一种在室内分布***中抑制上行底噪的方法、设备和***，包括：增益调整设备获取共小区内远端覆盖单元的载波级上行用户功率以及所述共小区内其他远端覆盖单元的载波级上行用户功率；所述增益调整设备根据所述远端覆盖单元的载波级上行用户功率以及所述共小区内其他远端覆盖单元的载波级上行用户功率，确定所述远端覆盖单元的载波级权重因子；所述增益调整设备根据所述远端覆盖单元的载波级权重因子调整所述远端覆盖单元的载波级上行接收增益，其中，所述远端覆盖单元的载波级上行接收增益小于0。由于该载波级上行接收增益小于0，因此，可以降低合路后的上行底噪的功率，从而达到了减少合路后的上行底噪的目的。

Description

在室内分布***中抑制上行底噪的方法、 设备和*** 技术领域 本发明实施例涉及移动通讯技术， 尤其涉及一种在室内分布***中抑 制上行底噪的方法、 设备和***。
背景技术 通用禾多动通信*** ( Universal Mobile Telecommunications System, 简 称 UMTS )室内分布***主要应用于地铁、商场、体育馆以及机场等场景。 为了扩大室内分布***中小区 （cell ) 的覆盖半径， 减少小区间的切换以 及提高载频的利用率， 在规划室内分布***时， 常常采用共小区 （co-cell ) 的方案。所谓共小区是一个由共用同一个信源的多个射频拉远单元 (remote radio unit, RRU) 共同覆盖的小区。 在多个射频拉远单元覆盖一个共小区 的场景中， 同一个室内基带处理单元 （Base Band Unit, BBU ) 控制下的 多个射频拉远单元在物理上分布在不同的站址， 但在逻辑上是同一个小 区，所以每个射频拉远单元的载波数、频点、信道配置等小区参数均相同。
在采用共小区方案时， 在上行接收方向可采用数字合路方案或模拟合 路方案， 以将共小区内的载波相叠加。 在现有技术中， 不管是采用数字合 路方案还是模拟合路方案， 都可以使用下面任何一种方式进行合路。
在第一种合路方式中， 由各个射频拉远单元分别进行合路。 其中， 各 个射频拉远单元是级联的， 以三级射频拉远单元级连为例进行说明， 该共 小区由第一级射频拉远单元、第二级射频拉远单元以及第三级射频拉远单 元依次连接而成， 第一级射频拉远单元接收到用户终端发送的数据后， 将 数据发送给第二级射频拉远单元， 第二级射频拉远单元将接入第二级射频 拉远单元的用户终端发送的数据与第一级射频拉远单元发送的数据进行 合路， 并将合路后的数据发送给第三级射频拉远单元， 第三级射频拉远单 元将接入第三级射频拉远单元的用户终端发送的数据与第二级射频拉远 单元发送的数据进行合路， 并将合路后的数据发送给基站。 可选地， 第三 级射频拉远单元也可以将合路后的数据发送给信源接入单元， 再由信源接 入单元发送给基站。
在第二种合路方式中， 各个射频拉远单元并不进行合路， 而是由基站 或信源接入单元进行合路。 同样以三级射频拉远单元级连为例进行说明， 第一级射频拉远单元接收到用户终端发送的数据后， 将数据发送给第二级 射频拉远单元， 第二级射频拉远单元将接入第二级射频拉远单元的用户终 端发送的数据与第一级射频拉远单元发送的数据分别发送给第三级射频 拉远单元， 第三级射频拉远单元将接入第三级射频拉远单元的用户终端发 送的数据与第二级射频拉远单元发送的两路数据分别发送给基站， 由基站 将该基站接收到的三路数据进行合路。 可选地， 第三级射频拉远单元也可 以将接入第三级射频拉远单元的用户终端发送的数据与第二级射频拉远 单元发送的两路数据分别发送给信源接入单元， 由信源接入单元将该信源 接入单元接收到的三路数据进行合路， 并将合路后的数据发送给基站。
不论采用上述哪种方式进行合路， 在合路时将共小区的载波直接相 力口， 都会导致上行底噪的增加， 其中， 上行底噪是指上行信号中的背景噪 声。 特别地， 在共小区的射频拉远单元的级数较多时， 合路后的上行底噪 会大大增加， 严重降低了上行信号的信噪比 (Signal-to-Noise Ratio， SNR) , 降低了用户终端接入 UMTS的成功率。尤其是在只有其中一级射频拉远单 元有用户终端接入， 而其他的射频拉远单元没有用户终端接入时， 射频拉 远单元最终合路后的上行底噪将大大增加， 很可能会导致接入这一级射频 拉远单元的用户终端无法成功接入 UMTS。 发明内容 本发明实施例提供一种在室内分布***中抑制上行底噪的方法、 设备 和***， 以减少合路后的上行底噪。
第一方面， 本发明实施例提供一种在室内分布***中抑制上行底噪的 方法， 包括：
增益调整设备获取共小区内远端覆盖单元的载波级上行用户功率以 及所述共小区内其他远端覆盖单元的载波级上行用户功率；
所述增益调整设备根据所述远端覆盖单元的载波级上行用户功率以 及所述共小区内其他远端覆盖单元的载波级上行用户功率， 确定所述远端 覆盖单元的载波级权重因子；
所述增益调整设备根据所述远端覆盖单元的载波级权重因子调整所 述远端覆盖单元的载波级上行接收增益， 其中， 所述远端覆盖单元的载波 级上行接收增益小于 0。
第二方面， 本发明实施例提供一种在室内分布***中抑制上行底噪的 方法， 包括：
共小区内的远端覆盖单元向增益调整设备上报所述远端覆盖单元的 载波级上行用户功率， 以使所述增益调整设备根据所述远端覆盖单元的载 波级上行用户功率以及所述共小区内其他远端覆盖单元的载波级上行用 户功率， 确定所述远端覆盖单元的载波级权重因子；
所述远端覆盖单元接收所述增益调整设备发送的所述远端覆盖单元 的载波级权重因子；
所述远端覆盖单元根据所述载波级权重因子调整所述远端覆盖单元 的载波级上行接收增益， 其中， 所述远端覆盖单元的载波级上行接收增益 小于 0。
第三方面， 本发明实施例提供一种增益调整设备， 包括：
获取模块， 用于获取共小区内远端覆盖单元的载波级上行用户功率以 及所述共小区内其他远端覆盖单元的载波级上行用户功率；
确定模块， 用于根据所述获取模块获取的所述远端覆盖单元的载波级 上行用户功率以及所述其他远端覆盖单元的载波级上行用户功率， 确定所 述远端覆盖单元的载波级权重因子；
增益调整模块， 用于根据所述确定模块确定的所述远端覆盖单元的载 波级权重因子， 调整所述远端覆盖单元的载波级上行接收增益， 其中， 所 述远端覆盖单元的载波级上行接收增益小于 0。
第四方面， 本发明实施例提供一种远端覆盖单元， 包括：
功率上报模块， 用于向增益调整设备上报共小区内所述远端覆盖单元 的载波级上行用户功率， 以使所述增益调整设备根据所述远端覆盖单元的 载波级上行用户功率以及共小区内其他远端覆盖单元的载波级上行用户 功率， 确定所述远端覆盖单元的载波级权重因子； 接收模块， 用于接收所述增益调整设备发送的所述远端覆盖单元的载 波级权重因子；
增益调整模块， 用于根据所述接收模块接收到的所述远端覆盖单元的 载波级权重因子调整所述远端覆盖单元的的载波级上行接收增益， 其中， 所述远端覆盖单元的载波级上行接收增益小于 0。
第五方面， 本发明实施例提供一种增益调整设备， 包括：
收发器， 用于与共小区内的远端覆盖单元通信；
处理器， 用于获取共小区内远端覆盖单元的载波级上行用户功率及所 述共小区内其他远端覆盖单元的载波级上行用户功率；
处理器， 还用于根据所述处理器获取的所述远端覆盖单元的载波级上 行用户功率以及所述共小区内其他远端覆盖单元的载波级上行用户功率， 确定所述远端覆盖单元的载波级权重因子；
所述处理器还用于根据所述远端覆盖单元的载波级权重因子调整所 述远端覆盖单元的载波级上行接收增益， 其中， 所述远端覆盖单元的载波 级上行接收增益小于 0。
第六方面， 本发明实施例提供一种远端覆盖单元， 包括：
发射器， 用于向增益调整设备上报共小区内所述远端覆盖单元的载波 级上行用户功率， 以使所述增益调整设备根据所述远端覆盖单元的载波级 上行用户功率以及所述共小区内其他远端覆盖单元的载波级上行用户功 率， 确定所述远端覆盖单元的载波级权重因子；
接收器， 用于接收所述增益调整设备发送的所述远端覆盖单元的载波 级权重因子；
处理器， 用于根据所述接收器接收的所述远端覆盖单元的载波级权重 因调整所述远端覆盖单元的载波级上行接收增益， 其中， 所述远端覆盖单 元的载波级上行接收增益小于 0。
第七方面， 本发明实施例提供一种抑制上行底噪的***包括上述的增 益调整设备以及上述的远端覆盖单元。
发明实施例提供一种在室内分布***中抑制上行底噪的方法、 设备和 ***， 增益调整设备根据远端覆盖单元的载波级权重因子调整该远端覆盖
101 输出功率 单元的载波级上行接收增益。 由于该载波级上行接收增益为 §丰編帛， 且上行接收增益小于 0， 因此， 可以在合路前降低每个载波中上行底噪的 功率， 从而可以降低合路后的上行底噪的功率， 从而达到了减少合路后的 上行底噪的目的。 附图说明 为了更清楚地说明本发明实施例或现有技术中的技术方案， 下面将对 实施例或现有技术描述中所需要使用的附图作一简单地介绍， 显而易见 地， 下面描述中的附图是本发明的一些实施例， 对于本领域普通技术人员 来讲， 在不付出创造性劳动性的前提下， 还可以根据这些附图获得其他的 附图。
图 1为本发明所适用的共小区的一种网络结构示意图；
图 2为本发明实施例提供的一种在室内分布***中抑制上行底噪的方 法流程图；
图 3为本发明实施例提供的另一种在室内分布***中抑制上行底噪的 方法流程图；
图 4为本发明实施例提供的又一种在室内分布***中抑制上行底噪的 方法流程图；
图 5为本发明实施例提供的一种增益调整设备的结构示意图； 图 6为本发明实施例提供的一种远端覆盖单元的结构示意图； 图 7为本发明实施例提供的另一种增益调整设备的结构示意图； 图 8为本发明实施例提供的另一种远端覆盖单元的结构示意图； 图 9为本发明实施例提供的一种抑制上行底噪的***的结构示意图。 具体实施方式 为使本发明实施例的目的、 技术方案和优点更加清楚， 下面将结合本 发明实施例中的附图， 对本发明实施例中的技术方案进行清楚、 完整地描 述， 显然，所描述的实施例是本发明一部分实施例， 而不是全部的实施例。 基于本发明中的实施例， 本领域普通技术人员在没有作出创造性劳动前提 下所获得的所有其他实施例， 都属于本发明保护的范围。
本发明各实施例提供的方法适用于 UMTS室内分布***， 该 UMTS 室内分布***中的共小区由多个远端覆盖单元共同覆盖。 图 1为本发明所 适用的共小区的一种网络结构示意图， 如图 1所示， 该共小区共有 6个远 端覆盖单元， 其中， 第一远端覆盖单元、 第二远端覆盖单元、 第三远端覆 盖单元依次连接， 组成第一级联***， 第四远端覆盖单元、 第五远端覆盖 单元、 第六远端覆盖单元依次连接， 组成第二级联***。 第一级联***和 第二级联***共同覆盖该共小区， 各个远端覆盖单元可以通过光纤进行级 联， 各级联***中作为根节点的远端覆盖单元与基站或近端模块直接连 接， 如图 1所示， 第一级联***中， 第一远端覆盖单元作为根节点， 直接 与近端模块连接， 该近端模块与基站连接； 第二远端级联***中， 第四远 端覆盖单元作为根节点， 直接与近端模块连接， 该近端模块与基站连接。 需要说明的是， 如果没有设置近端模块， 作为根节点的远端覆盖单元也可 以直接与基站直接连接。 其中， 远端覆盖单元可以为远程射频拉远单元或 分布式天线*** ( distributed antenna system)或直放站 ( Repeater ) ， 直放 站也称为中继器。 近端模块可以是信源接入单元， 该信源接入单元是一个 物理接入设备。 图 1中只是举例说明， 本发明实施例并不对共小区中远端 覆盖单元的数量进行限制。
需要说明的是， 图 1所示的结构仅是示意性的， 本发明实施例并不限 定共小区中级联***的数量。
需要说明的是， 本发明实施例也可以适用于其他的室内分布***， 例 如 CDMA ( Code Division Multiple Access , 码分多址） 室内分布***。
在本发明实施例中， 共小区可以支持单载波通信， 也可以支持多载波 通信。 如果该共小区采用多载波通信， 当用户终端使用不同的载波接入 UMTS时， 在不同的载波上， 用户终端的上行用户功率、 噪声功率都有可 能不同， 因此， 在本发明各实施例中， 增益调整设备调整的是各载波的上 行接收增益。 例如， 当该共小区支持两个载波通信时， 在测量各远端覆盖 单元上行用户功率时， 增益调整设备根据相同的方法， 分别测量两个载波 对应的上行用户功率， 并分别调整这两个载波的对应的上行接收增益， 其 中， 每个载波对应的上行用户功率也称为载波级上行用户功率， 每个载波 对应的上行接收增益也称为载波级上行接收增益。 需要说明的是， 本发明 实施例并不对共小区所支持的载波的数量进行限制。 在本发明实施例中， 增益调整设备根据各远端覆盖单元的载波级上行 用户功率， 确定各远端覆盖单元的载波级权重因子， 并根据各远端覆盖单 元的载波级权重因子， 调整各远端覆盖单元的载波级上行接收增益。 对于 有大量用户终端接入的远端覆盖单元， 该远端覆盖单元的载波级权重因子 大， 该远端覆盖单元的载波级上行接收增益也大。 对于有少量用户终端接 入的远端覆盖单元， 该远端覆盖单元的载波级权重因子小， 该远端覆盖单 元的载波级上行接收增益也小。 以下将通过具体的例子对发明提供的方法 进行详细说明， 以下各个实施例中出现的小区均指共小区。
图 2为本发明实施例提供的一种在室内分布***中抑制上行底噪的方 法流程图， 本发明实施例提供的方法由增益调整设备执行， 增益调整设备 可以为基站或者近端模块， 如图 2所示， 本实施例的方法包括以下步骤： 步骤 101、 增益调整设备获取共小区内远端覆盖单元的载波级上行用 户功率以及共小区内其他远端覆盖单元的载波级上行用户功率。
也就是说， 增益调整设备需要获取共小区内一个远端覆盖单元的载波 级上行用户功率以及该共小区内除了这一个远端覆盖单元之外的其他远 端覆盖单元的载波级上行用户功率。
其中， 载波级上行用户功率是指远端覆盖单元在每个载波上接收的上 行用户信号的功率， 不包括载波级噪声功率。 增益调整设备可通过以下两 种方式之一获取该远端覆盖单元的载波级上行用户功率及共小区内其他 远端覆盖单元的载波级上行用户功率： 第一种获取方式， 增益调整设备接 收该远端覆盖单元上报的该远端覆盖单元的载波级上行用户功率以及其 他远端覆盖单元上报的其他远端覆盖单元的载波级上行用户功率。在第一 种获取方式中， 各远端覆盖单元自己检测自身的载波级上行用户功率， 并 可以周期性地向增益调整设备上报载波级上行用户功率。 第二种获取方 式， 增益调整设备自己检测各远端覆盖单元的载波级上行用户功率， 具体 地， 增益调整设备检测该远端覆盖单元的载波级上行总功率和载波级噪声 功率， 并检测共小区内其他远端覆盖单元的载波级上行总功率和载波级噪 声功率， 增益调整设备根据该远端覆盖单元的载波级上行总功率和载波级 噪声功率， 确定该远端覆盖单元的载波级上行用户功率， 根据共小区内其 他远端覆盖单元的载波级上行总功率和载波级噪声功率， 确定共小区内其 他远端覆盖单元的载波级上行用户功率。 在本发明实施例中， 增益调整设 备可通过检测上行接收通道的总功率得到各远端覆盖单元的载波级上行 总功率， 将载波级上行总功率减去载波级噪声功率就可以得到载波级上行 用户功率。增益调整设备可以周期性的检测各远端覆盖单元的载波级上行 总功率和载波级噪声功率， 检测周期可以根据需要进行调整。
步骤 102、 增益调整设备根据远端覆盖单元的载波级上行用户功率以 及共小区内其他远端覆盖单元的载波级上行用户功率， 确定该远端覆盖单 元的载波级权重因子。
增益调整设备可以根据该远端覆盖单元的载波级上行用户功率以及 共小区内其他远端覆盖单元的载波级上行用户功率， 确定该远端覆盖单元 的载波级权重因子。 具体地， 增益调整设备将该远端覆盖单元的载波级上 行用户功率和共小区内其他远端覆盖单元的载波级上行用户功率相加， 得 到共小区内载波级上行用户总功率， 根据该远端覆盖单元的载波级上行用 户功率与共小区内载波级上行用户总功率的比值确定该远端覆盖单元的 载波级权重因子。 在其中一种实现方式中， 增益调整设备将该比值作为远 端覆盖单元的载波权重因子； 在其中另一种实现方式中， 增益调整设备可 以对该比值进行适当的调整， 将调整后的值作为该远端覆盖单元的载波级 权重因子。
例如， 共小区中有一个远端覆盖单元支持两个载波， 例如载波 fl和 f2， 那么针对这一个远端覆盖单元， 增益调整设备会得到两个载波级权重 因子，即载波 fl对应的载波级权重因子和载波 f2对应的载波级权重因子。 具体来说， 增益调整设备在获取到载波 fl对应的载波级上行用户功率后， 可以根据载波 fl对应的载波级上行用户功率以及该共小区内载波级上行 总功率， 得到载波 fl对应的载波级权重因子， 同理， 增益调整设备也可以 得到载波 f2对应的载波级权重因子。
其中， 需要说明的是， 当共小区支持两个以上的载波进行通信时， 增 益调整设备会得到每一个载波对应的载波级权重因子。
步骤 103、 增益调整设备根据远端覆盖单元的载波级权重因子调整远 端覆盖单元的载波级上行接收增益， 其中， 远端覆盖单元的载波级上行接 收增益小于 0 (不包括 0) 。 在其中一种实现方式中， 增益调整设备根据该远端覆盖单元的载波级 权重因子， 将该远端覆盖单元的载波级上行接收增益调整为 1Q 1g(^分贝 ( dB ) ， 其中， N表示远端覆盖单元的载波级权重因子， 0 < N < 1， 也就是 说， 将该远端覆盖单元发送的上行信号的增益调整为 1Q 1g(W) ^。 在其中另 一种实现方式中， 增益调整设备向该远端覆盖单元发送增益调整指示消 息， 增益调整指示消息携带该远端覆盖单元的载波级权重因子， 以指示该 远端覆盖单元根据该载波级权重因子调整该远端覆盖单元载波级上行接 收增益， 该远端覆盖单元接收到增益调整指示消息后， 根据该增益调整指 示消息中携带的载波级权重因子， 将所接收到的上行接收信号的载波级上 行接收增益调整为 撃。
本发明实施例提供的方法， 增益调整设备根据远端覆盖单元的载波级 权重因子调整该远端覆盖单元的载波级上行接收增益。 由于该载波级上行
101 输出功率
接收增益为 g i俞入郝， 且上行接收增益小于 0， 因此， 可以在合路前降 低每个载波中上行底噪的功率， 从而可以降低合路后的上行底噪的功率， 从而达到了减少合路后的上行底噪的目的。
图 3为本发明实施例提供的另一种在室内分布***中抑制上行底噪的 方法流程图， 本发明实施例将通过具体的例子， 对前一实施例提供的技术 方案进行详细描述。 在本发明实施例中， 共小区包含两个远端覆盖单元， 分别为第一远端单元和第二远端覆盖单元， 这两个远端覆盖单元级联连 接。 如图 3所示， 本实施例提供的方法包括以下步骤：
步骤 201、 增益调整设备检测共小区内第一远端覆盖单元的载波级上 行总功率和载波级噪声功率。
本发明实施例中， 增益调整设备可以周期性地检测共小区内第一远端 覆盖单元的载波级上行总功率和载波级噪声功率， 载波级上行总功率包括 载波级上行用户功率和载波级噪声功率， 增益调整设备可以通过检测第一 远端覆盖单元的上行接收通道的总功率得到第一远端覆盖单元的载波级 上行总功率。 检测功率的方法可以利用现有技术中的各种检测方法， 可以 采用模拟检测电路， 也可以用采数字检测电路， 本发明实施例不对此做限 制。 作为另一种可选的替换方式， 第一远端覆盖单元也可以自己检测载波 级上行总功率和载波级噪声功率， 并将检测的结果上报给增益调整设备。 步骤 202、 增益调整设备检测共小区内第二远端覆盖单元的载波级上 行总功率和载波级噪声功率。
增益调整设备可采用步骤 201中描述的方法检测第二远端覆盖单元的 载波级上行总功率和载波级噪声功率， 这里不再赘述。
需要说明的是， 在实际的应用过程中， 步骤 201和 202在执行时并没 有先后顺序。
步骤 203、 增益调整设备根据第一远端覆盖单元的载波级上行总功率 和载波级噪声功率， 确定第一远端覆盖单元的载波级上行用户功率。
具体地， 增益调整设备可将第一远端覆盖单元的载波级上行总功率减 去第一远端覆盖单元的载波级噪声功率， 得到第一远端覆盖单元的载波级 上行用户功率。
步骤 204、 增益调整设备根据第二远端覆盖单元的载波级上行总功率 和载波级噪声功率， 确定第二远端覆盖单元的载波级上行用户功率。
具体地， 增益调整设备可将第二远端覆盖单元的载波级上行总功率减 去第二远端覆盖单元的载波级噪声功率， 得到第二远端覆盖单元的载波级 上行用户功率。
步骤 205、 增益调整设备将第一远端覆盖单元的载波级上行用户功率 和第二远端覆盖单元的载波级上行用户功率相加， 得到共小区内载波级上 行用户总功率。
在本发明实施例中， 假设第一远端覆盖单元和第二远端覆盖单元都仅 支持单载波通信，第一远端覆盖单元的载波级上行用户功率为 x ( x > o ) , 第二远端覆盖单元的载波级上行用户功率为 Υ ( ^ > 0 ) ， 第一远端覆盖单 元和第二远端覆盖单元的载波级噪声功率都为 Ζ ( Ζ > 0 ) 。 此时， 共小区 内载波级上行用户总功率等于第一远端覆盖单元的载波级上行用户功率 与第二远端覆盖单元的载波级上行用户功率之和， 即共小区内载波级上行 用户总功率为 X+Y。
需要说明的是， 共小区内载波级上行用户总功率是该共小区内每个远 端覆盖单元的每个载波级上行用户功率之和。 例如， 在第一远端覆盖单元 支持载波 fl和 f2， 第二远端覆盖单元支持载波 f3和 f4时， 这个共小区内 载波级上行用户总功率是指 fl、 f2、 f3和 f4中每个载波所对应的上行用 户功率之和。
步骤 206、 增益调整设备根据第一远端覆盖单元的载波级上行用户功 率与共小区内载波级上行用户总功率的比值， 确定第一远端覆盖单元的载 波级权重因子。
具体地， 增益调整设备可将第一远端覆盖单元的载波级上行用户功率 与共小区内载波级上行用户总功率的比值作为第一远端覆盖单元的载波
X
级权重因子， 也就是说， 第一远端覆盖单元的载波级权重因子为^ ^。
Y
同理， 可得到第二远端覆盖单元的载波级权重因子为 ^7。
步骤 207、 增益调整设备根据第一远端覆盖单元的载波级权重因子， 将第一远端覆盖单元发送的载波级上行接收信号的增益调整为 1Q 1g(W)^， 其中， w为第一远端覆盖单元的载波级权重因子。 也就是说， 增益调整设备将第一远端覆盖单元的载波级上行接收增益 调整为 101g(A ^， W为第一远端覆盖单元的载波级权重因子， 且 0 < N < 1。
N =
由于 X + y， 增益调整设备将第一远端覆盖单元的载波级上行接收
X
ioig (- X )dB ■< 1
增益调整为 x + y 。 由于 ， 所以第一远端覆盖单元的载波级 上行接收增益小于 0 (不包括 0 ) 。 由下面的功率和增益的关系式可知， 当增益小于 0时， 输出功率小于输入功率， 当对载波级上行信号的功率进 行调整时， 也会对载波级上行信号中的上行底噪的功率进行调整。 也就是 说， 在对第一远端覆盖单元的载波级上行接收增益进行调整后， 可以降低 第一远端覆盖单元的载波级噪声功率。
Figure imgf000012_0001
以下将通过具体例子说明， 本实施例中， 第一远端覆盖单元的载波级
X Y
Zx- Zx- 噪声功率为 x + y， 第二远端覆盖单元的载波级噪声功率为 x + y。则 X Y
Zx- Zx- 载波级上行接收信号合路后的载波级噪声功率为 x + X + Y=Z, 而 现有技术中， 载波级上行接收信号合路后的载波级噪声功率等于 2Ζ, 因 此， 本实施例提供的方法能够降低合路后的上行底噪的功率， 减少合路后 的上行底噪。 若以增益的方式表示， 则第一远端覆盖单元的载波级噪声功
Figure imgf000013_0001
， 第二远端覆盖单元载波级噪 γ
Ζ*-
101g( ^ ^ ^-) dB = 10\g(-^7)dB < OdB
声功率增益为 … z ' -x+r „ 本发明实施例提供的方法， 不仅能够降低上行接收信号合路后上行底 噪的功率， 还能够提高载波级权重因子较大的远端覆盖单元的信噪比。 第 一远端覆盖单元的信噪比为第一远端覆盖单元的载波级用户功率与第一 远端覆盖单元的载波级噪声功率的比值， 当用增益表示时， 第一远端覆盖
X2 单元合路后的信噪比为
Figure imgf000013_0002
Y2
(χ +γ)χζ 101,(^)
X-101g X (分贝） ， 第二远端覆盖单元的信噪比为 z =ioig
Y (X+Y)xZ
Υ+ 1 Olg ^ + ^ - 10\gZ= 1 Olg Y- 1 Olg Y (分贝） 。 现有技术中， 第一远 端覆盖单元合路后
Figure imgf000013_0003
(分贝） ， 第二远端 覆盖单元合路后的信噪比为 1Qlg(^)=101gY-101g2Z (分贝） ， 以第一远端 覆盖单元为例来说， 若要第一远端覆盖单元的合路后的信噪比高于现有技
X+Y
术， 则需要 <2， 即需要 Υ<Χ， 因此， 通过降低远端覆盖单元载波 级上行接收增益，还可以提高用户功率大的远端覆盖单元的信噪比。而且， 两个远端覆盖单元的用户功率相差越大， 对于用户功率大的远端覆盖单元 来说信噪比的改善越明显， 同时能够增加每一级远端覆盖单元的覆盖半 径， 并提高用户终端接入 UMTS的成功率， 从整个 UMTS室内分布*** 来看， 可以增加 UMTS室内分布***的上行吞吐率。
本实施例提供的方法， 增益调整设备根据远端覆盖单元的载波级权重 因子调整该远端覆盖单元的载波级上行接收增益。 由于该载波级上行接收
101 输出功率
增益为 g i俞入郝， 且上行接收增益小于 0， 因此， 可以在合路前降低每 个载波中上行底噪的功率， 从而可以降低合路后的上行底噪的功率， 从而 达到了减少合路后的上行底噪的目的。 图 4为本发明实施例提供的又一种在室内分布***中抑制上行底噪的 方法流程图， 如图 4所示， 本实施例提供的方法， 包括以下步骤：
步骤 301、 共小区内的远端覆盖单元向增益调整设备上报该远端覆盖 单元的载波级上行用户功率， 以使增益调整设备根据该远端覆盖单元的载 波级上行用户功率以及共小区内其他远端覆盖单元的载波级上行用户功 率， 确定该远端覆盖单元的载波级权重因子。
也就是说， 共小区内第一远端覆盖单元以及该共小区内除了这一个远 端覆盖单元之外的其他远端覆盖单元均要向增益调整设备上报自身的上 行用户功率， 即该共小区内的各远端覆盖单元均要向增益调整设备上报自 身的载波级上行用户功率。增益调整设备获取该远端覆盖单元以及该共小 区内其他远端覆盖单元的上行用户功率后， 根据该远端覆盖单元的载波级 上行用户功率以及共小区内其他远端覆盖单元的载波级上行用户功率， 确 定该远端覆盖单元的载波级权重因子。增益调整设备根据该远端覆盖单元 的载波级上行用户功率以及共小区内其他远端覆盖单元的载波级上行用 户功率确定该远端覆盖单元的载波级权重因子的方法可以参照实施例一 和实施例二中的相关描述， 这里不再赘述。
该远端覆盖单元向增益调整设备上报自身的载波级上行用户功率之 前， 还需要获取该远端覆盖单元的载波级上行用户功率， 具体的， 该远端 覆盖单元检测自身的载波级上行总功率和载波级噪声功率， 然后， 该远端 覆盖单元将该远端覆盖单元的载波级上行总功率减去载波级噪声功率就 可以得到该远端覆盖单元的载波级上行用户功率。
步骤 302、 该远端覆盖单元接收增益调整设备发送的该远端覆盖单元 的载波级权重因子。
增益调整设备在确定该远端覆盖单元的载波级权重因子后， 将该远端 覆盖单元的载波级权重因子发送给该远端覆盖单元。
步骤 303、 该远端覆盖单元根据载波级权重因子调整该远端覆盖单元 的载波级上行接收增益， 其中， 该远端覆盖单元的载波级上行接收增益小 于 0。
在一种可行的实现方式中， 该远端覆盖单元根据载波级权重因子， 将 该远端覆盖单元的载波级上行接收增益调整为1 Q1g(w) ， 其中， W为该远 端覆盖单元的载波级权重因子， 且 o < w < i。
本实施例提供的方法， 远端覆盖单元根据增益调整设备发送的该远端 覆盖单元的载波级权重因子调整该远端覆盖单元的上行接收增益。 由于该
101 输出功率
载波级上行接收增益为 ^俞入郝， 且上行接收增益小于 0， 因此， 可以 在合路前降低每个载波中上行底噪的功率， 从而可以降低合路后的上行底 噪的功率， 从而达到了减少合路后的上行底噪的目的。
图 5为本发明实施例提供的一种增益调整设备的结构示意图， 本实施 例的增益调整设备可以为基站或近端模块。 如图 5所示， 本实施例提供的 增益调整设备包括：
获取模块 41，用于获取共小区内远端覆盖单元的载波级上行用户功率 以及该共小区内其他远端覆盖单元的载波级上行用户功率；
确定模块 42， 用于根据获取模块 41获取的该远端覆盖单元的载波级 上行用户功率以及其他远端覆盖单元的载波级上行用户功率， 确定该远端 覆盖单元的载波级权重因子；
增益调整模块 43， 用于根据确定模块 42确定的该远端覆盖单元的载 波级权重因子， 调整该远端覆盖单元的载波级上行接收增益， 其中， 该远 端覆盖单元的载波级上行接收增益小于 0。
获取模块 41具体可通过以下两种方式获取该远端覆盖单元的载波级 上行用户功率， 在第一种方式中， 获取模块 41接收该远端覆盖单元上报 的该远端覆盖单元的载波级上行用户功率以及其他远端覆盖单元上报的 其他远端覆盖单元的载波级上行用户功率， 该远端覆盖单元以及该共小区 内其他远端覆盖单元自己确定自己的载波级上行用户功率， 然后将自己的 载波级上行用户功率上报给增益调整设备。在第二种方式中， 获取模块 41 检测共小区内该远端覆盖单元的载波级上行总功率和载波级噪声功率， 以 及检测共小区内其他远端覆盖单元的载波级上行总功率和载波级噪声功 率； 然后， 获取模块 41根据共小区内该远端覆盖单元的载波级上行总功 率和载波级噪声功率， 确定该远端覆盖单元的载波级上行用户功率； 并根 据共小区内其他远端覆盖单元的载波级上行总功率和载波级噪声功率， 确 定共小区内其他远端覆盖单元的载波级上行用户功率。
获取模块 41根据共小区内该远端覆盖单元的载波级上行总功率和载 波级噪声功率， 确定该远端覆盖单元的载波级上行用户功率， 具体为： 获 取模块 41将共小区内该远端覆盖单元的载波级上行总功率减去共小区内 该远端覆盖单元的载波级噪声功率就可以得到该远端覆盖单元的载波级 上行用户功率。 获取模块 41根据共小区内其他远端覆盖单元的载波级上 行总功率和载波级噪声功率， 确定共小区内其他远端覆盖单元的载波级上 行用户功率， 具体为： 获取模块 41将共小区内其他远端覆盖单元的载波 级上行总功率减去其他远端覆盖单元的载波级噪声功率就可以得到共小 区内其他远端覆盖单元的载波级上行用户功率。
确定模块 42具体用于： 将获取模块 41获取的该远端覆盖单元的载波 级上行用户功率和获取模块 41获取的共小区内其他远端覆盖单元的载波 级上行用户功率相加， 得到共小区内载波级上行用户总功率； 然后， 确定 模块 42根据该远端覆盖单元的载波级上行用户功率与共小区内载波级上 行用户总功率的比值， 确定该远端覆盖单元的载波级权重因子。 其中， 确 定模块 42根据该远端覆盖单元的载波级上行用户功率与共小区内载波级 上行用户总功率的比值，确定该远端覆盖单元的载波级权重因子，具体为： 确定模块 42将该远端覆盖单元的载波级上行用户功率与共小区内载波级 上行用户总功率的比值作为该远端覆盖单元的载波权重因子。
在其中一种实现方式中， 增益调整模块 43向该远端覆盖单元发送增 益调整指示消息， 增益调整指示消息携带该远端覆盖单元的载波级权重因 子， 以指示该远端覆盖单元根据该载波级权重因子调整该远端覆盖单元的 载波级上行接收增益， 该远端覆盖单元接收到增益调整指示消息后， 根据 该增益调整指示消息中携带的载波级权重因子， 将所接收到的上行接收信 号的载波级上行接收增益调整为 101g(N) 。 在其中另一种实现方式中， 增 益调整模块 43根据该远端覆盖单元的载波级权重因子， 将该远端覆盖单 元的载波级上行接收增益调整为 101g(N)分贝， 其中， N表示该远端覆盖单 元的载波级权重因子， Q < N < 1， 也就是说， 将该远端覆盖单元发送的上行 信号的增益调整为 101g(N) 。
本实施例提供的增益调整设备， 可用于执行方法实施例一和实施例二 提供的技术方案， 具体实现方式和技术效果类似， 可参照上述实施例的描 述， 这里不再赘述
图 6为本发明实施例提供的一种远端覆盖单元的结构示意图， 如图 6 所示， 本实施例提供的远端覆盖单元， 包括：
功率上报模块 51， 用于向增益调整设备 50上报共小区内该远端覆盖 单元的载波级上行用户功率， 以使增益调整设备 50根据该远端覆盖单元 的载波级上行用户功率以及共小区内其他远端覆盖单元的载波级上行用 户功率， 确定该远端覆盖单元的载波级权重因子；
接收模块 52， 用于接收增益调整设备 50发送的该远端覆盖单元的载 波级权重因子；
增益调整模块 53用于根据接收模块 52接收到的该远端覆盖单元的载 波级权重因子调整该远端覆盖单元的的载波级上行接收增益， 其中， 该远 端覆盖单元的载波级上行接收增益小于 0。
增益调整模块 53具体用于： 根据该远端覆盖单元的载波级权重因子， 将该远端覆盖单元的载波级上行接收增益调整为 101g(N) ， 其中， N为该 远端覆盖单元的载波级权重因子， 且 0 < N < 1。
本实施例中， 该远端覆盖单元还可以包括： 功率检测模块， 用于检测 该远端覆盖单元的载波级上行总功率和载波级噪声功率； 功率确定模块， 用于将该远端覆盖单元的载波级上行总功率减去该远端覆盖单元的载波 级噪声功率， 得到该远端覆盖单元的载波级上行用户功率。
本实施例提供的远端覆盖单元， 可用于执行方法实施例三提供的技术 方案， 具体实现方式和技术效果类似， 可参照上述实施例的描述， 这里不 再赘述。
图 7为本发明实施例提供的另一种增益调整设备实施例二的结构示意 图， 本实施例中， 增益调整设备可以为基站或近端模块， 如图 7所示， 本 实施例提供的增益调整设备 600包括： 处理器 61、 收发器 63。 收发器 63 通过总线和处理器 61相连。本实施例提供的增益调整设备还可以包括： 存储 器 62， 其中， 存储器 62存储执行指令， 当增益调整设备 600运行时， 处理 器 61与存储器 62之间通信， 处理器 61执行执行指令使得增益调整设备 600 执行本发明提供的在室内分布***中抑制上行底噪的方法。
其中， 收发器 63， 用于与共小区内的远端覆盖单元通信；
处理器 61，用于获取共小区内远端覆盖单元的载波级上行用户功率及 共小区内其他远端覆盖单元的载波级上行用户功率；
处理器 61， 还用于根据处理器 61获取的该远端覆盖单元的载波级上 行用户功率以及共小区内其他远端覆盖单元的载波级上行用户功率， 确定 该远端覆盖单元的载波级权重因子；
处理器 61，还用于根据该远端覆盖单元的载波级权重因子调整该远端 覆盖单元的载波级上行接收增益， 其中， 该远端覆盖单元的载波级上行接 收增益小于 0。
本实施例中， 处理器 61在调整所述远端覆盖单元的载波级上行接收 增益时， 可以具体用于通过收发器 63向该远端覆盖单元发送增益调整指 示消息， 该增益调整指示消息携带处理器 61确定的载波级权重因子， 以 指示该远端覆盖单元根据载波级权重因子调整载波级上行接收增益。
处理器 61在调整所述远端覆盖单元的载波级上行接收增益时， 可以 具体用于： 根据该远端覆盖单元的载波级权重因子， 将该远端覆盖单元的 载波级上行接收增益调整为 101g(N) ， 其中， N为该远端覆盖单元的载波 级权重因子， 且 0 < N < 1。
本实施例中， 处理器 61可通过以下两种方式中的任一种方式获取共 小区内该远端覆盖单元的载波级用户功率和共小区内其他远端覆盖单元 的载波级用户功率， 在第一种获取方式中， 处理器 61检测共小区内该远 端覆盖单元的载波级上行总功率和载波级噪声功率； 以及检测共小区内其 他远端覆盖单元的载波级上行总功率和载波级噪声功率； 然后， 处理器 61 根据共小区内该远端覆盖单元的载波级上行总功率和载波级噪声功率， 确 定共小区内该远端覆盖单元的载波级上行用户功率， 并根据共小区内其他 远端覆盖单元的载波级上行总功率和载波级噪声功率， 确定共小区内其他 远端覆盖单元的载波级上行用户功率。 具体地， 处理器 61将共小区内该 远端覆盖单元的载波级上行总功率减去共小区内该远端覆盖单元的载波 级噪声功率， 得到该远端覆盖单元的载波级上行用户功率， 将共小区内其 他远端覆盖单元的载波级上行总功率减去其他远端覆盖单元的载波级噪 声功率， 得到共小区内其他远端覆盖单元的载波级上行用户功率。 在第二 种获取方式中， 处理器 61通过收发器 63接收该远端覆盖单元上报的载波 级上行用户功率以及其他远端覆盖单元上报的载波级上行用户功率。
处理器 61具体用于通过以下方式确定该远端覆盖单元的载波级权重 因子： 处理器 61将处理器 61获取的该远端覆盖单元的载波级上行用户功 率和处理器 61获取的共小区内其他远端覆盖单元的载波级上行用户功率 相加， 得到共小区内载波级上行用户总功率； 然后， 处理器 61根据该远 端覆盖单元的载波级上行用户功率与共小区内载波级上行用户总功率的 比值， 确定该远端覆盖单元的载波级权重因子。 处理器 61可将该远端覆 盖单元的载波级上行用户功率与共小区内载波级上行用户总功率的比值 作为远端覆盖单元的载波权重因子。
本实施例提供的增益调整设备， 可用于执行方法实施例一和实施例二 提供的技术方案， 具体实现方式和技术效果类似， 可参照上述实施例的描 述， 这里不再赘述
图 8为本发明实施例提供的另一种远端覆盖单元的结构示意图， 如图 8所示， 本实施例提供的远端覆盖单元 700包括： 处理器 71、 发射器 73、 接收器 74。 发射器 73和接收器 74通过总线和处理器 71相连。 本实施例提 供的远端覆盖单元还可以包括存储器 72， 其中， 存储器 72存储执行指令， 当远端覆盖单元 700运行时， 处理器 71与存储器 72之间通信， 处理器 71执 行执行指令使得远端覆盖单元 700执行本发明提供的在室内分布***中抑制 上行底噪的方法。
其中， 发射器 73， 用于向增益调整设备上报共小区内该远端覆盖单元 的载波级上行用户功率， 以使增益调整设备根据该远端覆盖单元的载波级 上行用户功率以及共小区内其他远端覆盖单元的载波级上行用户功率， 确 定该远端覆盖单元的载波级权重因子；
接收器 74，用于接收增益调整设备发送的该远端覆盖单元的载波级权 重因子；
处理器 71， 用于根据接收器 74接收的该远端覆盖单元的载波级权重 因调整该远端覆盖单元的载波级上行接收增益， 其中， 该远端覆盖单元的 载波级上行接收增益小于 0。
处理器 71具体用于： 根据该远端覆盖单元的载波级权重因子， 将该 远端覆盖单元的载波级上行接收增益调整为 101g(N) ， 其中， N为该远端 覆盖单元的载波级权重因子， 且 0 < N < 1。
本实施例中， 处理器 71还用于： 检测该远端覆盖单元的载波级上行 总功率和载波级噪声功率； 将该远端覆盖单元的载波级上行总功率减去该 远端覆盖单元的载波级噪声功率， 得到该远端覆盖单元的载波级上行用户 功率。
本实施例提供的远端覆盖单元， 可用于执行方法实施例三提供的技术 方案， 具体实现方式和技术效果类似， 可参照上述实施例的描述， 这里不 再赘述。
图 9为本发明实施例提供的一种抑制上行底噪的***的结构示意图， 如图 9所示，本实施例提供的该抑制上行底噪的***包括增益调整设备 81 以及远端覆盖单元 82， 其中， 增益调整设备 81可以为上述实施例中任一个 增益调整设备， 远端覆盖单元 82可以为上述实施例中任一个远端覆盖单元， 本实施例中可以包括多个远端覆盖单元，对远端覆盖单元的个数并不做限制。
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

权 利 要 求 书
1、 一种增益调整设备， 其特征在于， 包括：
获取模块， 用于获取共小区内远端覆盖单元的载波级上行用户功率以 及所述共小区内其他远端覆盖单元的载波级上行用户功率；
确定模块， 用于根据所述获取模块获取的所述远端覆盖单元的载波级 上行用户功率以及所述其他远端覆盖单元的载波级上行用户功率， 确定所 述远端覆盖单元的载波级权重因子；
增益调整模块， 用于根据所述确定模块确定的所述远端覆盖单元的载 波级权重因子， 调整所述远端覆盖单元的载波级上行接收增益， 其中， 所 述远端覆盖单元的载波级上行接收增益小于 0。
2、 根据权利要求 1 所述的增益调整设备， 其特征在于， 所述增益调 整模块具体用于：
向所述远端覆盖单元发送增益调整指示消息， 所述增益调整指示消息 携带所述所述载波级权重因子， 以指示所述远端覆盖单元根据所述载波级 权重因子调整所述载波级上行接收增益。
3、 根据权利要求 1 所述的增益调整设备， 其特征在于， 所述增益调 整模块具体用于：
根据所述远端覆盖单元的载波级权重因子， 将所述远端覆盖单元的载 波级上行接收增益调整为 101g(N) ， 其中， N为所述远端覆盖单元的载波 级权重因子， 且 0 < N < 1。
4、 根据权利要求 1-3中任一项所述的增益调整设备， 其特征在于， 所 述获取模块具体用于：
检测所述共小区内所述远端覆盖单元的载波级上行总功率和载波级 噪声功率；
检测所述共小区内所述其他远端覆盖单元的载波级上行总功率和载 波级噪声功率；
根据所述共小区内所述远端覆盖单元的载波级上行总功率和载波级 噪声功率， 确定所述共小区内所述远端覆盖单元的载波级上行用户功率； 根据所述共小区内所述其他远端覆盖单元的载波级上行总功率和载 波级噪声功率， 确定所述共小区内所述其他远端覆盖单元的载波级上行用 户功率。
5、 根据权利要求 4所述的增益调整设备， 其特征在于， 所述获取模 块在确定所述共小区内所述远端覆盖单元的载波级上行用户功率时， 具体 用于将所述共小区内所述远端覆盖单元的载波级上行总功率减去所述共 小区内所述远端覆盖单元的载波级噪声功率， 得到所述远端覆盖单元的载 波级上行用户功率；
所述获取模块在确定所述共小区内所述其他远端覆盖单元的载波级 上行用户功率时， 具体用于将所述共小区内所述其他远端覆盖单元的载波 级上行总功率减去所述其他远端覆盖单元的载波级噪声功率， 得到所述共 小区内所述其他远端覆盖单元的载波级上行用户功率。
6、 根据权利要求 1-3中任一项所述的增益调整设备， 其特征在于， 所 述获取模块具体用于：
接收所述远端覆盖单元上报的所述远端覆盖单元的载波级上行用户 功率以及所述其他远端覆盖单元上报的所述其他远端覆盖单元的载波级 上行用户功率。
7、 根据权利要求 1-6中任一项所述的增益调整设备， 其特征在于， 所 述确定模块具体用于：
将所述获取模块获取的所述远端覆盖单元的载波级上行用户功率和 所述获取模块获取的所述共小区内其他远端覆盖单元的载波级上行用户 功率相加， 得到所述共小区内载波级上行用户总功率；
根据所述远端覆盖单元的载波级上行用户功率与所述共小区内载波 级上行用户总功率的比值， 确定所述远端覆盖单元的载波级权重因子。
8、 根据权利要求 7所述的增益调整设备， 其特征在于， 所述确定模 块在确定所述远端覆盖单元的载波级权重因子时， 具体用于将所述比值作 为所述远端覆盖单元的载波权重因子。
9、 根据权利要求 1-8中任一项所述的增益调整设备， 其特征在于， 所 述增益调整设备为基站或近端模块。
10、 一种远端覆盖单元， 其特征在于， 包括：
功率上报模块， 用于向增益调整设备上报共小区内所述远端覆盖单元 的载波级上行用户功率， 以使所述增益调整设备根据所述远端覆盖单元的 载波级上行用户功率以及共小区内其他远端覆盖单元的载波级上行用户 功率， 确定所述远端覆盖单元的载波级权重因子；
接收模块， 用于接收所述增益调整设备发送的所述远端覆盖单元的载 波级权重因子；
增益调整模块， 用于根据所述接收模块接收到的所述远端覆盖单元的 载波级权重因子调整所述远端覆盖单元的的载波级上行接收增益， 其中， 所述远端覆盖单元的载波级上行接收增益小于 0。
11、 根据权利要求 10所述的远端覆盖单元， 其特征在于， 所述增益 调整模块具体用于：
根据所述远端覆盖单元的载波级权重因子， 将所述远端覆盖单元的载 波级上行接收增益调整为 101g(N) ， 其中， N为所述远端覆盖单元的载波 级权重因子， 且 0 < N < 1。
12、 根据权利要求 10或 11所述的远端覆盖单元， 其特征在于， 还包 括：
功率检测模块， 用于检测所述远端覆盖单元的载波级上行总功率和载 波级噪声功率；
功率确定模块， 用于将所述远端覆盖单元的载波级上行总功率减去所 述远端覆盖单元的载波级噪声功率， 得到所述远端覆盖单元的所述载波级 上行用户功率。
13、 一种增益调整设备， 其特征在于， 包括：
收发器， 用于与共小区内的远端覆盖单元通信；
处理器， 用于获取所述共小区内远端覆盖单元的载波级上行用户功率 及所述共小区内其他远端覆盖单元的载波级上行用户功率；
所述处理器， 还用于根据所述处理器获取的所述远端覆盖单元的载波 级上行用户功率以及所述共小区内其他远端覆盖单元的载波级上行用户 功率， 确定所述远端覆盖单元的载波级权重因子；
所述处理器还用于根据所述远端覆盖单元的载波级权重因子调整所 述远端覆盖单元的载波级上行接收增益， 其中， 所述远端覆盖单元的载波 级上行接收增益小于 0。
14、 根据权利要求 13 所述的增益调整设备， 其特征在于， 所述处理 器在调整所述远端覆盖单元的载波级上行接收增益时， 具体用于通过所述 收发器向所述远端覆盖单元发送增益调整指示消息， 所述增益调整指示消 息携带所述处理器确定的载波级权重因子， 以指示所述远端覆盖单元根据 所述载波级权重因子调整所述载波级上行接收增益。
15、 根据权利要求 13 所述的增益调整设备， 其特征在于， 所述处理 器在调整所述远端覆盖单元的载波级上行接收增益时， 具体用于：
根据所述远端覆盖单元的载波级权重因子， 将所述远端覆盖单元的载 波级上行接收增益调整为 101g(N) ， 其中， N为所述远端覆盖单元的载波 级权重因子， 且 0 < N < 1。
16、根据权利要求 13-15中任一项所述的增益调整设备，其特征在于， 所述处理器在获取所述共小区内远端覆盖单元的载波级上行用户功率及 所述共小区内其他远端覆盖单元的载波级上行用户功率时， 具体用于： 检测所述共小区内远端覆盖单元的载波级上行总功率和载波级噪声 功率；
检测所述共小区内所述其他远端覆盖单元的载波级上行总功率和载 波级噪声功率；
根据所述共小区内所述远端覆盖单元的载波级上行总功率和载波级 噪声功率， 确定所述共小区内所述远端覆盖单元的载波级上行用户功率； 根据所述共小区内所述其他远端覆盖单元的载波级上行总功率和载 波级噪声功率， 确定所述共小区内所述其他远端覆盖单元的载波级上行用 户功率。
17、 根据权利要求 16所述的增益调整设备， 其特征在于， 所述处理 器在确定所述共小区内所述远端覆盖单元的载波级上行用户功率时， 具体 用于将所述共小区内所述远端覆盖单元的载波级上行总功率减去所述共 小区内所述远端覆盖单元的载波级噪声功率， 得到所述远端覆盖单元的载 波级上行用户功率；
所述处理器在确定所述共小区内所述其他远端覆盖单元的载波级上 行用户功率时， 具体用于将所述共小区内所述其他远端覆盖单元的载波级 上行总功率减去所述其他远端覆盖单元的载波级噪声功率， 得到所述共小 区内所述其他远端覆盖单元的载波级上行用户功率。
18、根据权利要求 13-15中任一项所述的增益调整设备，其特征在于， 所述处理器在获取所述共小区内远端覆盖单元的载波级上行用户功率及 所述共小区内其他远端覆盖单元的载波级上行用户功率时， 具体用于： 通过所述收发器接收所述远端覆盖单元上报的所述远端覆盖单元的 载波级上行用户功率以及所述其他远端覆盖单元上报的所述其他远端覆 盖单元的载波级上行用户功率。
19、根据权利要求 13-18中任一项所述的增益调整设备，其特征在于， 所述处理器在确定所述远端覆盖单元的载波级权重因子时， 具体用于： 将所述处理器获取的所述远端覆盖单元的载波级上行用户功率和所 述处理器获取的所述共小区内其他远端覆盖单元的载波级上行用户功率 相加， 得到所述共小区内载波级上行用户总功率；
根据所述远端覆盖单元的载波级上行用户功率与所述共小区内载波 级上行用户总功率的比值， 确定所述远端覆盖单元的载波级权重因子。
20、 根据权利要求 19所述的增益调整设备， 其特征在于， 所述处理 器在确定所述远端覆盖单元的载波级权重因子时， 具体用于：
将所述比值作为所述远端覆盖单元的载波权重因子。
21、根据权利要求 13-20中任一项所述的增益调整设备，其特征在于， 所述增益调整设备为基站或近端模块。
22、 一种远端覆盖单元， 其特征在于， 包括：
发射器， 用于向增益调整设备上报共小区内所述远端覆盖单元的载波 级上行用户功率， 以使所述增益调整设备根据所述远端覆盖单元的载波级 上行用户功率以及所述共小区内其他远端覆盖单元的载波级上行用户功 率， 确定所述远端覆盖单元的载波级权重因子；
接收器， 用于接收所述增益调整设备发送的所述远端覆盖单元的载波 级权重因子；
处理器， 用于根据所述接收器接收的所述远端覆盖单元的载波级权重 因调整所述远端覆盖单元的载波级上行接收增益， 其中， 所述远端覆盖单 元的载波级上行接收增益小于 0。
23、 根据权利要求 22所述的远端覆盖单元， 其特征在于， 所述处理 器具体用于： 根据所述远端覆盖单元的载波级权重因子， 将所述远端覆盖单元的载 波级上行接收增益调整为 101g(N) ， 其中， N为所述远端覆盖单元的载波 级权重因子， 且 0 < N < 1。
24、 根据权利要求 22或 23所述的远端覆盖单元， 其特征在于， 所述 处理器还用于：
检测所述远端覆盖单元的载波级上行总功率和载波级噪声功率； 将所述远端覆盖单元的载波级上行总功率减去所述远端覆盖单元的 载波级噪声功率， 得到所述远端覆盖单元的所述载波级上行用户功率。
25、 一种抑制上行底噪的***， 其特征在于， 包括增益调整设备以及 远端覆盖单元， 其中：
所述增益调整设备为权利要求 1-9任一所述的增益调整设备；
所述远端覆盖单元为权利要求 10-12任一所述的远端覆盖单元。
26、一种在室内分布***中抑制上行底噪的方法， 其特征在于， 包括: 增益调整设备获取共小区内远端覆盖单元的载波级上行用户功率以 及所述共小区内其他远端覆盖单元的载波级上行用户功率；
所述增益调整设备根据所述远端覆盖单元的载波级上行用户功率以 及所述共小区内其他远端覆盖单元的载波级上行用户功率， 确定所述远端 覆盖单元的载波级权重因子；
所述增益调整设备根据所述远端覆盖单元的载波级权重因子调整所 述远端覆盖单元的载波级上行接收增益， 其中， 所述远端覆盖单元的载波 级上行接收增益小于 0。
27、 根据权利要求 26所述的方法， 其特征在于， 所述增益调整设备 根据所述远端覆盖单元的载波级权重因子调整所述远端覆盖单元的载波 级上行接收增益， 包括：
所述增益调整设备向所述远端覆盖单元发送增益调整指示消息， 所述 增益调整指示消息携带所述远端覆盖单元的载波级权重因子， 以指示所述 远端覆盖单元根据所述远端覆盖单元的载波级权重因子调整所述载波级 上行接收增益。
28、 根据权利要求 26所述的方法， 其特征在于， 所述增益调整设备 根据所述远端覆盖单元的载波级权重因子调整所述远端覆盖单元的载波 级上行接收增益， 包括：
所述增益调整设备将所述远端覆盖单元的载波级上行接收增益调整 为 m„ 其中， w为所述远端覆盖单元的载波级权重因子， 且 o < N <i。
29、 根据权利要求 26-28中任一项所述的方法， 其特征在于， 所述增 益调整设备获取所述共小区内所述远端覆盖单元的载波级上行用户功率 以及所述共小区内所述其他远端覆盖单元的载波级上行用户功率， 包括： 所述增益调整设备检测所述共小区内所述远端覆盖单元的载波级上 行总功率和载波级噪声功率；
所述增益调整设备检测所述共小区内所述其他远端覆盖单元的载波 级上行总功率和载波级噪声功率；
所述增益调整设备根据所述共小区内所述远端覆盖单元的载波级上 行总功率和载波级噪声功率， 确定所述共小区内所述远端覆盖单元的载波 级上行用户功率；
所述增益调整设备根据所述共小区内所述其他远端覆盖单元的载波 级上行总功率和载波级噪声功率， 确定所述共小区内所述其他远端覆盖单 元的载波级上行用户功率。
30、 根据权利要求 29所述的方法， 其特征在于， 所述增益调整设备 根据所述共小区内所述远端覆盖单元的载波级上行总功率和载波级噪声 功率， 确定所述远端覆盖单元的载波级上行用户功率， 包括：
所述增益调整设备将所述共小区内所述远端覆盖单元的载波级上行 总功率减去所述共小区内所述远端覆盖单元的载波级噪声功率， 得到所述 共小区内所述远端覆盖单元的载波级上行用户功率；
所述增益调整设备根据所述共小区内所述其他远端覆盖单元的载波 级上行总功率和载波级噪声功率， 确定所述共小区内所述其他远端覆盖单 元的载波级上行用户功率， 包括：
所述增益调整设备将所述共小区内所述其他远端覆盖单元的载波级 上行总功率减去所述其他远端覆盖单元的载波级噪声功率， 得到所述共小 区内所述其他远端覆盖单元的载波级上行用户功率。
31、 根据权利要求 26-28中任一项所述的方法， 其特征在于， 所述增 益调整设备获取共小区内所述各远端覆盖单元的载波级上行用户功率以 及所述共小区内其他远端覆盖单元的载波级上行用户功率， 包括： 所述增益调整设备接收所述远端覆盖单元上报的所述远端覆盖单元 的载波级上行用户功率， 以及所述其他远端覆盖单元上报的所述其他远端 覆盖单元的载波级上行用户功率。
32、 根据权利要求 26-31中任一项所述的方法， 其特征在于， 所述增 益调整设备根据所述远端覆盖单元的载波级上行用户功率和所述共小区 内其他远端覆盖单元的载波级上行用户功率， 确定所述远端覆盖单元的载 波级权重因子， 包括：
所述增益调整设备将所述远端覆盖单元的载波级上行用户功率和所 述共小区内其他远端覆盖单元的载波级上行用户功率相加， 得到所述共小 区内载波级上行用户总功率；
所述增益调整设备根据所述远端覆盖单元的载波级上行用户功率与 所述共小区内载波级上行用户总功率的比值， 确定所述远端覆盖单元的载 波级权重因子。
33、 根据权利要求 32所述的方法， 其特征在于， 所述增益调整设备 根据所述远端覆盖单元的载波级上行用户功率与所述共小区内载波级上 行用户总功率的比值， 确定所述远端覆盖单元的载波级权重因子， 包括： 所述增益调整设备将所述比值作为所述远端覆盖单元的载波权重因 子。
34、 根据权利要求 26-33中任一项所述的方法， 其特征在于， 所述增 益调整设备为基站或近端模块。
35、一种在室内分布***中抑制上行底噪的方法， 其特征在于， 包括： 共小区内的远端覆盖单元向增益调整设备上报所述远端覆盖单元的 载波级上行用户功率， 以使所述增益调整设备根据所述远端覆盖单元的载 波级上行用户功率以及所述共小区内其他远端覆盖单元的载波级上行用 户功率， 确定所述远端覆盖单元的载波级权重因子；
所述远端覆盖单元接收所述增益调整设备发送的所述远端覆盖单元 的载波级权重因子；
所述远端覆盖单元根据所述载波级权重因子调整所述远端覆盖单元 的载波级上行接收增益， 其中， 所述远端覆盖单元的载波级上行接收增益 小于 0。
36、 根据权利要求 25 所述的方法， 其特征在于， 所述远端覆盖单元 根据所述载波级权重因子调整所述远端覆盖单元的载波级上行接收增益， 包括：
所述远端覆盖单元将所述远端覆盖单元的载波级上行接收增益调整 为 101g(N) ， 其中， w为所述增益调整设备发送的所述远端覆盖单元的载 波级权重因子， 且 0 < N < 1。
37、 根据权利要求 35或 36所述的方法， 其特征在于， 在所述远端覆 盖单元向增益调整设备上报自身的载波级上行用户功率之前， 所述方法还 包括：
所述远端覆盖单元检测所述远端覆盖单元的载波级上行总功率和载 波级噪声功率；
所述远端覆盖单元将所述远端覆盖单元的载波级上行总功率减去所 述远端覆盖单元的载波级噪声功率， 得到所述远端覆盖单元的所述载波级 上行用户功率。
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