WO2014059799A1 - Method and device for measuring reference signal receiving power - Google Patents

Method and device for measuring reference signal receiving power Download PDF

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Publication number
WO2014059799A1
WO2014059799A1 PCT/CN2013/078726 CN2013078726W WO2014059799A1 WO 2014059799 A1 WO2014059799 A1 WO 2014059799A1 CN 2013078726 W CN2013078726 W CN 2013078726W WO 2014059799 A1 WO2014059799 A1 WO 2014059799A1
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WO
WIPO (PCT)
Prior art keywords
rru
cell
rsrp
merged
csi
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PCT/CN2013/078726
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French (fr)
Chinese (zh)
Inventor
郭涛
夏亮
简雄军
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华为技术有限公司
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Priority to JP2014545093A priority Critical patent/JP2015505181A/en
Publication of WO2014059799A1 publication Critical patent/WO2014059799A1/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H04L5/005—Allocation of pilot signals, i.e. of signals known to the receiver of common pilots, i.e. pilots destined for multiple users or terminals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT

Definitions

  • a radio remote unit (RRU) cell merging technology can solve the problem of mutual interference between cells.
  • the combination of multiple RRUs into one cell may use the following two methods: First, a plurality of RRUs having the same channel are combined into one cell, which may be referred to as a Single Frequency Network (SFN) cell; The RRUs of the N channels and the RRUs of the M channels are combined into one cell, which may be referred to as an N+M cell.
  • SFN Single Frequency Network
  • the RSRP is generally measured according to the Cell 1-Specific Reference Signal (CRS), and the cell-level downlink RSRP of the cell can be obtained, that is, the multiple RRU signals in the cell are combined.
  • the total reference signal receives power.
  • the received power of the combined RRU signal is such that when the multi-RRU combined cell coverage occurs, the downlink reference signal received power of each RRU cannot be obtained, and the RRU cannot be set for the coverage.
  • the invention provides a method and a device for measuring a reference signal receiving power, which can acquire each
  • the RRU's reference signal receives power.
  • the present invention provides a method for measuring a received power of a reference signal, including: the base station is configured with a multi-radio remote unit RRU merged cell or each of the multiple RRU merged cells and adjacent RRUs of the neighboring cells are configured with different time-frequency positions.
  • Channel state information reference signal (Channe l S ta te Informa ti on - Reference Symbo l , CS I-RS );
  • the base station sends each of the CS I-RSs to a user equipment (UE), so that the UE receives a reference signal received power RSRP according to a time-frequency position of each of the CS I-RSs;
  • UE user equipment
  • the acquiring, by the base station, the RSRP of each RRU in the multiple RRU merged cell or the multiple RRU merged cell and its neighboring cell includes: The different CS I-RSs of the RRUs in the RRU merged cell and the RSRPs corresponding to the CS I-RSs are obtained, and the RSRPs of the multiple RRU merged cells or the RRUs of the multiple RRU merged cells and their neighboring cells are acquired.
  • the method further includes:
  • the base station adjusts downlink transmit power of at least one RRU in the multiple RRU merged cell according to the RSRP of each RRU in the acquired multiple RRU merged cell.
  • the determining, by the base station, the downlink transmit power of the at least one RRU in the multiple RRU merged cell includes: The output power adjustment value of the at least one RRU in the multi-RRU merged cell, so that the at least one RRU is transmitted by using the adjusted downlink power; or
  • the base station sets a downlink power configuration value of at least one RRU in the multiple RRU merged cell, so that the at least one RRU uses the configured downlink power to transmit.
  • the base station acquires the multiple RRU After the RSRP of each RRU in the cell and its neighboring cells, the method further includes:
  • the base station adjusts the multiple RRU merged cell to a new multi-RRU merged cell, where the new multi-RRU merged cell includes the multiple RRUs, according to the acquired RSRPs of the RRUs of the multiple RRU merged cells and their neighboring cells. Merging some or all of the RRUs in the cell, and including some or all of the RRUs in the neighboring cells of the multiple RRU merged cells.
  • the present invention provides a device for measuring reference signal received power, including: a configuration unit, configured to configure different time-frequency locations for multiple RRU merge cells or respective RRUs in the multiple RRU merged cells and their neighboring cells CS I-RS;
  • a sending unit configured to send each of the CS I-RSs to the user equipment UE, so that the UE measures the reference signal received power RSRP according to the time-frequency position of each of the CS I-RSs;
  • An acquiring unit configured to receive each of the CS I-RSs on the UE, and RSRPs corresponding to the CS I-RSs, and acquire the multiple RRU merged cells or the multiple RRU merged cells and RSRP of each RRU in the neighboring cell.
  • the acquiring unit is configured to: according to different CS I-RSs configured for each RRU in a multi-RRU merged cell, and corresponding to each of the CS I-RSs The RSRP obtains the RSRP of each RRU in the multiple RRU merged cell or the multiple RRU merged cell and its neighboring cells.
  • the apparatus further includes: a first processing unit, configured to adjust the multiple RRU merge according to the RSRP of each RRU in the acquired multiple RRU merged cell Downlink transmit power of at least one RRU in the cell.
  • the first processing unit includes:
  • a first setting module configured to set an output power adjustment value of the at least one RRU in the multiple RRU merged cell, so that the at least one RRU is used to transmit the adjusted downlink power
  • the device further includes: a second processing unit, configured to: according to the obtained RSRP of each RRU in the multiple RRU merged cell and its neighboring cells, The multi-RRU merged cell is adjusted to be a new multi-RRU merged cell, where the new multi-RRU merged cell includes some or all of the RRUs in the multi-RRU merged cell, and includes some or all of the RRUs in the neighboring cells of the multi-RRU merged cell .
  • An embodiment of the present invention provides a method and a device for measuring reference signal received power, where a base station is configured to configure CSI-RSs of different time-frequency positions for multiple RRU merged cells or for multiple RRUs in the multiple RRU merged cells and their neighboring cells. Transmitting, by the base station, each of the CSI-RSs to the UE, so that the UE 4 measures the RSRP according to the time-frequency positions of the CSI-RSs; and the base station receives each of the CSI-RSs on the UE. And an RSRP corresponding to each of the CSI-RSs, and acquiring an RSRP of each of the multiple RRU merged cells or the multiple RRU merged cells and their neighboring cells.
  • the solution provided by the embodiment of the present invention may be configured by configuring different CSI-RSs for multiple RRU merged cells or each RRU in the multiple RRU merged cells and their neighboring cells. And causing the terminal to measure the RSRP according to the time-frequency position of the CSI-RS, so as to obtain the reference signal receiving power of each RRU.
  • FIG. 3 is a schematic diagram of coverage of a handover according to Embodiment 1 of the present invention.
  • FIG. 5 is a block diagram of another apparatus for measuring reference signal received power according to Embodiment 1 of the present invention.
  • FIG. 6 is a block diagram of another apparatus for measuring reference signal received power according to Embodiment 1 of the present invention.
  • FIG. 7 is a block diagram of another base station according to Embodiment 2 of the present invention.
  • An embodiment of the present invention provides a method for measuring a received power of a reference signal.
  • the method is performed by a base station. As shown in FIG. 1, the method includes:
  • Step 101 The base station configures a channel state information reference signal CSI-RS of different time-frequency positions for each RRU in the multi-radio remote unit RRU merged cell or the multiple RRU merged area and its neighboring cells;
  • the RRU is a radio remote unit, which means that the radio unit is pulled to the remote end to cover the target area through the optical fiber, and the baseband signal is transmitted in the optical fiber.
  • Baseband processing unit (Bui lding Baseband Uni te, The BBU is centrally placed in the equipment room.
  • the RRU can be installed at the antenna end.
  • One BBU can support multiple RRUs. Since the distance between the base stations is too small, it is difficult to solve the interference between the cells by adjusting the downtilt angle of the antenna, etc., so the technology of multi-RRU combined cells is introduced. Among them, multiple RRU merged cells, that is, full cell transmission, and sectorized (coverage area) reception.
  • the coverage of one cell is divided into multiple sectors or multiple small coverage areas, and each sector or small coverage area is received by different receiving antennas, and the transmission signals of all sectors or coverage areas are the same.
  • the signals received by the multiple RRUs are sent to the BBU for processing.
  • the generated downlink signals are copied into multiple copies and sent to the RRUs, thereby achieving the effect of the whole cell mode.
  • Step 102 The base station sends each CSI-RS to the user equipment UE, so that the UE measures the reference signal received power RSRP according to the time-frequency position of each CSI-RS.
  • the base station may allocate different CSI-RSs to different RRUs and send them to the UE.
  • the time-frequency positions of the CSI-RSs corresponding to different RRUs are different.
  • RSRP is one of the key parameters in the LTE network that can represent the strength of the wireless signal. It is the average of the received signal power on all resource elements (Resource Element, RE) carrying the reference signal within a certain symbol.
  • the RSRP When measuring the downlink signal strength of a cell in the prior art, the RSRP is generally measured according to the CRS.
  • the RSRP measured by the prior art is a cell, that is, a superimposed value of the total downlink RSRP of multiple RRUs of the cell.
  • the present invention uses the base station to configure different CSI-RSs for each RRU, so that the UE can measure the RSRP of each RRU in the cell by using the time-frequency position of the CSI-RS, that is, obtain the downlink RSRP of the RRU level.
  • Step 103 The base station receives each of the CSI-RSs on the UE and RSRPs corresponding to the CSI-RSs, and acquires the multiple RRU merged cells or the multiple RRU merged cells and their neighbors. RSRP of each RRU in the cell.
  • the base station obtains the RSRP of each RRU through the internal mapping. Specifically, the base station acquires multiple RRU merges according to different CSI-RSs configured for each RRU in the multiple RRU merged cells and RSRP corresponding to each of the CSI-RSs.
  • An embodiment of the present invention provides a method for measuring a received power of a reference signal, by configuring different CSI-RSs for each RRU in a multi-RRU merged cell or the multiple RRU merged cell and its neighboring cells, so that the terminal can perform CSI-RS according to the CSI-RS.
  • the time-frequency position measures RSRP to obtain the reference signal received power of each RRU.
  • the present invention provides another method for measuring the received power of a reference signal. As shown in FIG. 2, the method includes:
  • Step 201 The base station configures a channel state information reference signal CSI-RS of different time-frequency positions for each RRU in the RRU merged cell of the multi-radio remote unit.
  • the base station may configure CSI-RSs of different time-frequency positions for different RRUs in the multiple RRU combined cells, where different CSI-RSs refer to different time-frequency positions of the CSI-RS, and the time-frequency positions refer to resources and frequency dimensions of the time dimension.
  • the resources of the time dimension may be different Transmission Time Intervals (TTIs), and the resources of the frequency dimension may be different Physical Resource Blocks (PRBs).
  • TTIs Transmission Time Intervals
  • PRBs Physical Resource Blocks
  • Step 202 The base station sends each of the CSI-RSs to the user equipment UE, so that the UE measures the reference signal received power RSRP according to the time-frequency position of each CSI-RS.
  • the base station may send each CSI-RS to the UE by using a Radio Resource Control (RRC) connection reconfiguration message.
  • RRC Radio Resource Control
  • RSRP is one of the key parameters in an LTE network that can represent the strength of a wireless signal. It is the average of the received signal power on all Resource Elements (REs) that carry the reference signal within a symbol.
  • REs Resource Elements
  • Step 203 The UE receives the CSI-RS configured by the base station for each RRU, and measures the RSRP according to the time-frequency position of the CSI-RS.
  • the UE obtains the CSI-RS configured by the base station for each RRU by receiving the RRC connection reconfiguration message sent by the base station, and queries the period and offset corresponding to the CSI-RS, and according to the query.
  • the period and offset corresponding to the CSI-RS calculates the time-frequency position of the CSI-RS, and the UE measures the RSRP at the time-frequency position of the obtained CSI-RS.
  • Step 204 The UE reports the respective CSI-RSs and the RSRPs corresponding to the measured RRUs to the base station.
  • the UE may send each of the CSI-RSs and the measured RSRPs of the respective RRUs to the base station in the form of CSI-RS RSRP measurement reports. That is, when the difference between the CSI-RS RSRP of one of the adjacent RRUs measured by the UE and the CSI-RS RSRP of the RRU is higher than a preset threshold, the CSI-RS RSRP measurement is triggered, and the RRU may For any RRU in a multi-RRU merged cell, the neighboring RRUs may be RRUs directly adjacent to the RRU, and the adjacent RRUs are also RRUs in the multiple RRU merged cells; the preset thresholds may be set according to experience. .
  • the CSI-RS RSRP measurement report includes the CSI-RS of the RRU, and the CSI-RS RSRP of the RRU, the CSI-RS of each RRU adjacent to the RRU, and the CSI of each RRU adjacent to the RRU.
  • RS RSRP RS RSRP.
  • the UE reports each of the CSI-RSs and the measured RSRPs corresponding to the RRUs to the base station
  • other methods may be used, for example, by setting a timer, when the set time arrives,
  • Each of the CSI-RSs and the RSRPs corresponding to the measured RRUs are measured on the base station. That is to say, the embodiment of the present invention does not limit the manner in which the UE reports.
  • Step 205 The base station receives each of the CSI-RSs on the UE and the RSRPs corresponding to the CSI-RSs, and acquires RSRPs of the RRUs in the multiple RRU merged cells.
  • the base station obtains the RSRP of each RRU through internal mapping according to each of the CSI-RSs reported by the received UE and the RSRP corresponding to each of the CSI-RSs. Specifically, the base station performs mapping according to the different CSI-RSs configured for each RRU in the multiple RRU merged cell in step 201, and the RSRP corresponding to each of the CSI-RSs on the received UE. The RSRP of each RRU in the multiple RRU merged cell is obtained.
  • Step 206 The base station adjusts downlink transmit power of at least one RRU in the multiple RRU merged cell according to the obtained RSRP of each RRU in the multiple RRU merged cell.
  • the UE is in the coverage area of the cell CELL1, where The CELL1 coverage area is indicated by a black line frame, but the CELL2 signal in the coverage area of the CELL1 is relatively strong, so that the UE resides in the CELL2.
  • the downlink signal strength is measured in the prior art, only the cell-level RSRP can be obtained, and the uplink cannot be obtained.
  • the RSRP of each RRU in the small area therefore, only the CELL2 downlink signal is strong in the coverage area of CELL1, and there is coverage in the area, but it is impossible to know specifically which RRU power setting in CELL2 is large, so it is impossible to make specific adjustment.
  • the RSRP of each RRU in the multi-RRU merged cell it is determined that the RSRP setting of an RRU in the CELL2 is too large in the scenario where the coverage is present, and the CELL2 has a coverage, and the CELL2 can be adjusted at this time.
  • the RSRP is set to an excessive RRU.
  • downlink power setting may be performed on at least one RRU according to RSRP of at least one RRU in the multiple RRU merged cell, thereby avoiding pilot pollution of the multiple RRU merged cells.
  • the downlink power setting of the RRU may be performed in the following two manners: First, the base station sets an output power adjustment value of at least one RRU in the multiple RRU merged cell, so that the at least one RRU is adjusted. The subsequent downlink power is transmitted;
  • This mode is to set the existing parameters, that is, according to the existing parameter cell ID -> reject -> box -> slot -> RRU output power adjustment value, wherein, one of the parameters in the cell ID is rejected, the box is One of the parameters rejected, the slot is a parameter in the box, and the parameters in the slot are set: RRU output power adjustment value.
  • the RRU output power adjustment value is the offset that is increased or decreased by a few dB based on the RRU transmit power. For example, in a scenario where there is coverage, the transmission power of the RRU that determines the excessive RSRP setting in CELL2 is lowered, so that the coverage of the handover is eliminated.
  • the base station sets a downlink power configuration value of at least one RRU in the multiple RRU merged cell, The transmitting is performed such that the at least one RRU is configured with downlink power.
  • the new parameters are set, that is, according to the cell ID -> number of RRUs in the cell -> reject -> box -> slot -> RRU level downlink power configuration, that is, the downlink power of each RRU in the cell is re-established. Settings. It should be noted that when the cell is a multi-RRU merged cell, the newly added "RRU-level downlink power configuration, the parameters take effect, and when the cell is a normal cell, the newly added "RRU-level downlink power configuration" parameter Invalid, the original implementation is still used.
  • the "downlink power configuration" value here is the power of the cell-specific reference signal (CRS) pilot signal of each cell, which can be understood as a cell at the base station side.
  • CRS cell-specific reference signal
  • the downlink power of at least one RRU is set for the RRU level by using the obtained RSRP of at least one RRU in each multi-RRU merged cell, so that one of the cells is the dominant frequency. So that the UE can be stably camped on this cell, thereby eliminating pilot pollution.
  • the base station is configured to configure the CSI-RS of different time-frequency positions for the multiple RRU combined cells, so that the terminal measures the RSRP according to the time-frequency position of the CSI-RS, so that the base station can The RSRP of each RRU is obtained, and the power can be adjusted according to the RSRP of each RRU, so that the coverage of the handover and the pilot pollution can be avoided.
  • the embodiment of the invention provides another method for measuring the received power of the reference signal. As shown in FIG. 4, the method includes:
  • Step 401 The base station configures a channel state information reference signal CSI-RS of different time-frequency positions for each RRU in the multiple RRU combined cell and its neighboring cells.
  • Step 402 The base station sends each CSI-RS to the user equipment UE, so that the UE measures the reference signal received power RSRP according to the time-frequency position of each CSI-RS.
  • the base station delivers the CSI-RSs configured for the multiple RRU merged cells and the RRUs in the neighboring cells to the UE, where the multiple RRU merged cells and the neighboring cells belong to the same coordinated multipoint transmission/reception (Coordinated Multiple Points Transmission/Reception) , CoMP) management set, the multiple RRU merged cell is used as the local cell, and the neighboring cell is directly adjacent to the local cell.
  • a CoMP management set may include up to eight measurement targets, and the measurement target may be a cell or an RRU.
  • Step 403 The UE receives the CSI-RS configured by the base station for each RRU, and measures the RSRP according to the time-frequency position of the CSI-RS.
  • Step 404 The UE sends the RSRP corresponding to each of the CS I-RS and the measured multiple RRU merged cell and its neighboring cells to the base station.
  • the UE may send each of the CSI-RSs and the measured RSRPs of the respective RRUs to the base station in the form of a CS I-RS RSRP measurement. That is, when the difference between the CSI-RS RSRP of the neighboring RRU and the CSI-RS RSRP of the RRU is higher than the preset threshold, the CSI-RS RSRP measurement report is triggered, where the RRU may be Any RRU in a multi-RRU merged cell, the neighboring RRUs may be RRUs directly adjacent to the RRU, and the adjacent RRUs are also RRUs in the multiple RRU merged cells; the preset threshold may be set according to experience.
  • the CSI-RS RSRP measurement report includes the CSI-RS of the RRU, and the CS I-RS RSRP of the RRU, the CSI-RS of each RRU adjacent to the RRU, and the CSI of each RRU adjacent to the RRU. -RS RSRP.
  • the UE reports each of the CSI-RSs and the measured RSRPs corresponding to the RRUs to the base station
  • other methods may be used, for example, by setting a timer, when the set time arrives,
  • Each of the CS I-RSs and the RSRPs corresponding to the measured RRUs are measured on the base station. That is to say, the embodiment of the present invention does not limit the manner in which the UE reports.
  • Step 405 The base station receives each of the CSI-RSs reported by the UE, and RSRPs corresponding to the CSI-RSs in the multiple RRU merged cells and the neighboring cells thereof, and acquires each of the multiple RRU merged cells and their neighboring cells.
  • RSRP of RRU The base station receives each of the CSI-RSs reported by the UE, and RSRPs corresponding to the CSI-RSs in the multiple RRU merged cells and the neighboring cells thereof, and acquires each of the multiple RRU merged cells and their neighboring cells.
  • steps 401 to 405 are the same as steps 201 to 205 in FIG. 1, except that in FIG. 2, only according to the processing of one multi-RRU merged cell, FIG. 4 is based on The processing of the multi-RRU merged cell and its neighboring cell, but the specific processing manner is the same. For details, refer to the description of the operations in step 201-step 205 in FIG. 2, and details are not described herein.
  • Step 406 The base station adjusts the multiple RRU merged cell to a new multi-RRU merged cell according to the acquired RSRP of each RRU in the multiple RRU merged cell and its neighboring cell.
  • the new multi-RRU merged cell includes some or all of the RRUs in the multiple RRU merged cells, and includes some or all of the RRUs in the neighboring cells of the multiple RRU merged cells.
  • the current network since the current network has completed the network construction of multiple RRU merged cells in the later stage of network planning, due to long-term parameter setting and radio frequency (RF) optimization, some of the previous RRUs are merged into one.
  • the scheme of the cell is not optimal, that is, the combination of some original RRUs into one cell can not obtain the best interference suppression effect.
  • only the cell-level RSRP can be obtained by using the existing technology. If the multi-RRU merged cell is re-planned, the existing multi-RRU merged cell can be split into common cells, and then the RSRP of the common cell is re-acquired.
  • the optimal new multi-RRU combined cell merging scheme is calculated, that is, which RRUs are combined into one cell, and this method is performed in the latter stage of network construction, and the network deployment is basically fixed. Basically impossible, and there is a lot of work.
  • the multi-RRU merged cell can be adjusted into a new multi-RRU merge.
  • the cell achieves optimal interference suppression and other effects.
  • the method for implementing the network rule tool is: inputting information of multiple RRU merged cell work table, neighbor cell list, and RSRP of the neighboring cell into the network rule tool, and providing different types according to the distance between the base stations and the neighbor cell list.
  • Single Frequency Network (SFN) combined cell combination according to various SFN combined cell combinations, through the RSRP measurement values of each RRU in each cell, after obtaining a certain SFN combination, the signal and interference of the whole network are added.
  • the signal to interference ratio (SINR) is finally obtained.
  • the SFN combination with the largest SINR is the largest, and the SFN combination is the new multi-RRU combined cell.
  • the combination of multiple RRUs into one cell may use the following two methods: First, multiple RRUs with the same channel are combined into one cell, which may be referred to as an SFN cell; Second, RRU and M channels by the N channel The RRUs are combined into one cell and may be referred to as an N+M cell.
  • a method for measuring reference signal received power provided by an embodiment of the present invention is provided by a base station
  • the multiple RRU combining cells are configured with different CSI-RSs, so that the terminal measures the RSRP according to the time-frequency position of the CSI-RS, so that the base station can obtain the RSRP of each RRU, and can combine the RSRPs of the RRUs according to the multiple RRUs and the neighboring cells.
  • the original multi-RRU combined cell is adjusted to a new multi-RRU combined cell, so that the optimal interference suppression and the like are achieved.
  • the embodiment of the present invention provides a device for measuring the received power of the reference signal, and the device may be a base station. As shown in FIG. 5, the device includes: a configuration unit 501, a sending unit 502, and an obtaining unit 503;
  • the configuration unit 501 is configured to configure CSI-RSs of different time-frequency positions for the multiple RRU merged cells or the RRUs of the multiple RRU merged cells and their neighboring cells.
  • the configuration unit 501 may be configured to configure different CSI-RSs for different RRUs in the multiple RRU merged cells, where different CSI-RSs refer to different time-frequency positions of the CSI-RS, and the time-frequency positions refer to resources and frequency dimensions of the time dimension. The resource location where resources are crossed. The resources of the time dimension may be specific.
  • the configuration unit 501 configures the CSI-RS for each RRU, the CSI-RS specified in the communication protocol may be adopted as long as the CSI-RSs of the RRUs in the multiple RRU merged cells are different.
  • the different configurations are to determine the CSI-RS for each RRU.
  • the sending unit 502 is configured to send each of the CSI-RSs to the UE, so that the UE measures the RSRP according to the time-frequency position of each of the CSI-RSs;
  • the sending unit 502 sends the CSI-RS configured for the multiple RRU combined cell or the multiple RRU combined cell and each RRU in the neighboring cell to the UE.
  • the sending unit 502 is configured to send the CSI-RSs of the multiple RRU merged cells and the RRUs in the neighboring cells to the UE, where the multiple RRU merged cells and the neighboring cells belong to the same CoMP management set, and the multiple RRU merged cells are used as the local cell, and the neighboring cell
  • the CoMP management set may include up to eight measurement targets, and the measurement target may be a cell or an RRU.
  • the sending unit 502 can send each CSI-RS to the UE by sending the RRC connection reconfiguration message.
  • RSRP is one of the key parameters in an LTE network that can represent the strength of a wireless signal. It is the average of the received signal power on all resource elements RE that carry the reference signal within a certain symbol.
  • the acquiring unit 503 is configured to receive each of the CSI-RSs and the RSRPs corresponding to the CSI-RSs on the UE, and acquire the multiple RRU merged cells or the multiple RRU merged cells and their neighbors. RSRP of each RRU in the cell.
  • the obtaining unit 503 is configured to: acquire, according to different CSI-RSs configured for each RRU in the multi-RRU merged cell, and an RSRP corresponding to each of the CSI-RSs, an acquiring module 5032, configured to obtain The RSRP of each RRU in the multiple RRU merged cell or the multiple RRU merged cell and its neighboring cells.
  • the apparatus when the base station configures a different CS I-RS for each RRU in the multiple RRU merged cell, the apparatus further includes: a first processing unit 504, a first setting module 5041, Two setting module 5042;
  • the first processing unit 504 is configured to adjust downlink transmit power of at least one RRU in the multiple RRU merged cell according to the RSRP of each RRU in the acquired multiple RRU merged cell.
  • the first setting module 5041 of the first processing unit 504 is configured to set an output power adjustment value of at least one RRU in the multiple RRU merged cell, so that the at least one RRU uses the downlink after the adjustment. Power is transmitted;
  • the RRU output power adjustment value is the offset that is increased or decreased by a few dB based on the RRU transmit power. For example, in the scenario where there is coverage, that is, the UE is in the coverage area of the cell CELL1, but the CELL2 signal in the coverage area of the CELL1 is relatively strong, so that the UE resides in the CELL2, and the RSRP setting in the CELL2 is determined to be lowered.
  • the transmit power of a large RRU makes it possible to eliminate the coverage of the handover.
  • the second setting module 5042 of the first processing unit 504 is configured to set a downlink power configuration value of at least one RRU in the multiple RRU merged cell, so that the at least one RRU is configured to use the configured downlink power to transmit.
  • the RSRP of each RRU in each multi-RRU merged cell is obtained, and at least one RRU is performed for the RRU level.
  • the row power is set such that one of the cells is a dominant frequency, so that the UE can stably camp on the cell, thereby eliminating pilot pollution.
  • the apparatus when the base station configures a different CS I-RS for each RRU in the multiple RRU merged cell and its neighboring cells, the apparatus further includes: a second processing unit 505;
  • the second processing unit 505 is configured to adjust the multiple RRU merged cell to a new multi-RRU merged cell according to the acquired RSRP of each RRU in the multiple RRU merged cell and its neighboring cell, where the new multi-RRU merged cell And including some or all of the RRUs in the multiple RRU merged cells, and including some or all of the RRUs in the neighboring cells of the multiple RRU merged cells.
  • An embodiment of the present invention provides a measurement device for receiving power of a reference signal, where the configuration unit is configured to configure CS I- at different time-frequency locations for each RRU in a multi-RRU merged cell or the multiple RRU merged cell and its neighboring cells.
  • a transmitting unit configured to send each of the CSI-RSs to the UE, so that the UE measures an RSRP according to a time-frequency position of each of the CS I-RSs; and an acquiring unit, configured to receive, by the UE, Each of the CSI-RSs and the RSRPs corresponding to the respective CSI-RSs, and acquires RSRPs of the multiple RRU merged cells or the RRUs of the multiple RRU merged cells and their neighboring cells.
  • the solution provided by the embodiment of the present invention may be configured to configure different CSI-RSs for each RRU in the multiple RRU merged cell or the multiple RRU merged cell and its neighboring cells, so that the terminal measures the RSRP according to the time-frequency position of the CSI-RS. Thereby, the reference signal received power of each RRU is obtained.
  • the embodiment of the present invention provides a base station.
  • the base station includes: a processor 701, a transmitter 702, and a receiver 703.
  • the processor 701 is configured to configure CS I-RSs of different time-frequency locations for the multiple RRU merged cells or the multiple RRU merged cells and each RRU in the neighboring cell.
  • the transmitter 702 is configured to send each of the CSI-RSs to the UE, so that the UE measures the RSRP according to the time-frequency positions of the CSI-RSs.
  • the receiver 703 is configured to receive each of the CSI-RSs on the UE and the RSRPs corresponding to the CSI-RSs.
  • the processor 701 is configured to acquire the multiple RRU merged cells or the multiple The RSRP of each RRU in the RRU merged cell and its neighboring cells.
  • the processor 701 acquires the RSRP of each RRU in the multiple RRU merged cell or the multiple RRU merged cell and the neighboring cell
  • the processor 701 is specifically configured to: according to the multiple RRU merged cell
  • the different CSI-RSs of the respective RRUs and the RSRPs corresponding to the CSI-RSs acquire the RSRPs of the multiple RRU merged cells or the RRUs of the multiple RRU merged cells and their neighboring cells.
  • the processor 701 is further configured to adjust the RSRP according to the RSRP of each RRU in the acquired multiple RRU merged cell.
  • the downlink transmit power of at least one RRU in the multiple RRU merged cell.
  • the processor 701 sets an output power adjustment value of at least one RRU in the multiple RRU merged cell, so that the at least one RRU uses the adjusted downlink power to transmit; or, the processor 701 sets The multiple RRU merges the downlink power configuration values of at least one RRU in the cell, so that the at least one RRU uses the configured downlink power to transmit.
  • the RRU output power adjustment value is the offset that is increased or decreased by a few dB based on the RRU transmit power. For example, in the scenario where there is coverage, that is, the UE is in the coverage area of the cell CELL1, but the CELL2 signal in the coverage area of the CELL1 is relatively strong, so that the UE resides in the CELL2, and the RSRP setting in the CELL2 is determined to be lowered.
  • the transmit power of a large RRU makes it possible to eliminate the coverage of the handover.
  • the downlink power of at least one RRU is set for the RRU level by using the obtained RSRP of each RRU in the multiple RRU merged cells, so that one of the cells is a dominant frequency, so that the UE can stably reside. In this cell, pilot pollution is eliminated.
  • the processor 701 is further configured to: according to the acquired multiple RRU merged cell And the RSRP of each RRU in the neighboring cell, the multi-RRU merged cell is adjusted to a new multi-RRU merged cell, where the new multi-RRU merged cell includes some or all of the RRUs in the multi-RRU merged cell, and includes A part or all of the RRUs in the neighboring cells of the multiple RRU merged cells.
  • An embodiment of the present invention provides a base station, where a processor is a multiple RRU merged cell or the Each RRU in the multiple RRU merged cell and its neighboring cells configures CS I-RSs of different time-frequency locations; the transmitter sends each of the CS I-RSs to the UE, so that the UE according to each of the CS I-RSs The time-frequency location measures the RSRP; the receiver receives each of the CS I-RSs on the UE and the RSRP corresponding to each of the CS I-RSs, and the processor acquires the multiple RRU merged cells or the RSRP of each RRU in a multi-RRU merged cell and its neighboring cells.
  • the solution provided by the embodiment of the present invention may configure different CS I-RSs for each RRU in the multiple RRU merged cell or the multiple RRU merged cell and its neighboring cells, so that the terminal can calculate the time frequency of the CS I-RS.
  • the position measures RSRP to obtain the reference signal received power of each RRU.
  • the device embodiments described above are merely illustrative, and the illustrated components may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. . Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the embodiment. Those of ordinary skill in the art can understand and implement without undue creative work.
  • the present invention can be implemented by means of software plus necessary general hardware, and of course, dedicated hardware, dedicated CPU, dedicated memory, dedicated memory, Special components are used to achieve this, but in many cases the former is a better implementation.
  • the technical solution of the present invention which is essential or contributes to the prior art, may be embodied in the form of a software product stored in a readable storage medium, such as a floppy disk of a computer.
  • U disk mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Acces s Memory), disk or optical disk, etc., including a number of instructions to make a computer device (can It is a personal computer, a server, or a network device, etc.) that performs the methods described in various embodiments of the present invention.
  • a computer device can It is a personal computer, a server, or a network device, etc.

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Abstract

The present invention relates to the technical field of communication network. Disclosed are a method and device for measuring reference signal receiving power (RSRP), capable of acquiring the RSRP of each radio remote unit (RRU). In the solution provided in an embodiment of the present invention, a base station configures the CSI-RSs having different time frequency positions for each RRU in a multi-RRU merged cell or in the multi-RRU merged cell and a neighboring cell thereof; the base station transmits each CSI-RS to a UE, such that the UE measures the RSRP according to the time frequency position of each CSI-RS; and the base station receives each CSI-RS reported by the UE and the RSRP corresponding to each CSI-RS, and acquires the RSRP of each RRU in the multi-RRU merged cell or in the multi-RRU merged cell and neighboring cell thereof. The embodiment of the present invention is suitable for RSRP measurement.

Description

一种参考信号接收功率的测量方法及装置 本申请要求于 2012 年 10 月 15 日提交中国专利局、 申请号为 201210389888.3、 发明名称为"一种参考信号接收功率的测量方法及装置" 的中国专利申请的优先权， 其全部内容通过引用结合在本申请中。 技术领域 本发明涉及通信网络技术领域， 尤其涉及一种参考信号接收功率的测 量方法及装置。  Method and device for measuring reference signal receiving power This application claims to be Chinese patent filed on October 15, 2012, the Chinese Patent Office, application number 201210389888.3, and the invention titled "a method and device for measuring the received power of reference signals" Priority of the application, the entire contents of which are incorporated herein by reference. The present invention relates to the field of communication network technologies, and in particular, to a method and an apparatus for measuring reference signal received power.
背景技术 目前， 通过射频拉远单元 ( Radio Remote Unit, RRU ) 小区合并技术 可以解决小区间相互干扰的问题。 多个 RRU合并为一个小区可以釆用以下 两种合并方式： 第一， 由通道相同的多个 RRU合并为一个小区， 可以称为 单频点网络 ( Single Frequency Network, SFN ) 小区； 第二， 由 N个通道 的 RRU和 M个通道的 RRU合并为一个小区， 可以称为 N+M小区。 Background Art Currently, a radio remote unit (RRU) cell merging technology can solve the problem of mutual interference between cells. The combination of multiple RRUs into one cell may use the following two methods: First, a plurality of RRUs having the same channel are combined into one cell, which may be referred to as a Single Frequency Network (SFN) cell; The RRUs of the N channels and the RRUs of the M channels are combined into one cell, which may be referred to as an N+M cell.
当测量多 RRU合并小区的下行参考信号接收功率 （Reference Signal When measuring the downlink reference signal received power of multiple RRU combined cells (Reference Signal
Receiving Power, RSRP)时， 通常根据小区专用参考信号（ Cel 1-specif ic reference signals, CRS )对 RSRP进行测量， 可以获得该小区的小区级下 行 RSRP, 即该小区中多个 RRU信号合并后的总的参考信号接收功率。 In the case of Receiving Power (RSRP), the RSRP is generally measured according to the Cell 1-Specific Reference Signal (CRS), and the cell-level downlink RSRP of the cell can be obtained, that is, the multiple RRU signals in the cell are combined. The total reference signal receives power.
然而， 釆用现有技术进行参考信号接收功率的测量时， 仅能获得多个 However, when using the prior art to measure the received power of the reference signal, only multiple
RRU信号合并后的接收功率， 这样当出现多 RRU合并小区越区覆盖时， 由于 无法获得各个 RRU的下行参考信号接收功率，导致无法针对越区覆盖的 RRU 进行功率设置。 The received power of the combined RRU signal is such that when the multi-RRU combined cell coverage occurs, the downlink reference signal received power of each RRU cannot be obtained, and the RRU cannot be set for the coverage.
发明内容 本发明提供一种参考信号接收功率的测量方法及装置， 可以获取各个Summary of the invention The invention provides a method and a device for measuring a reference signal receiving power, which can acquire each
RRU的参考信号接收功率。 The RRU's reference signal receives power.
第一方面， 本发明提供一种参考信号接收功率的测量方法， 包括： 基站为多射频拉远单元 RRU合并小区或者所述多 RRU合并小区及其邻 小区中的各个 RRU 配置不同时频位置的信道状态信息参考信号 （Channe l S ta te Informa t i on - Reference Symbo l , CS I-RS );  In a first aspect, the present invention provides a method for measuring a received power of a reference signal, including: the base station is configured with a multi-radio remote unit RRU merged cell or each of the multiple RRU merged cells and adjacent RRUs of the neighboring cells are configured with different time-frequency positions. Channel state information reference signal (Channe l S ta te Informa ti on - Reference Symbo l , CS I-RS );
所述基站将各个所述 CS I- RS发送给用户设备 ( User Equi pment , UE ), 以便所述 UE根据各个所述 CS I-RS的时频位置测量参考信号接收功率 RSRP; 所述基站接收所述 UE上 ^艮的各个所述 CS I-RS以及与各个所述 CS I-RS 对应的 RSRP , 并获取多 RRU合并小区或者所述多 RRU合并小区及其邻小区 中的各个 RRU的 RSRP。  The base station sends each of the CS I-RSs to a user equipment (UE), so that the UE receives a reference signal received power RSRP according to a time-frequency position of each of the CS I-RSs; Each of the CS I-RSs on the UE and the RSRP corresponding to each of the CS I-RSs, and acquiring RSRPs of the multiple RRU merged cells or the RRUs of the multiple RRU merged cells and their neighboring cells .
在第一种可能的实现方式中， 结合第一方面， 所述基站获取所述多 RRU 合并小区或者所述多 RRU合并小区及其邻小区中的各个 RRU的 RSRP包括： 所述基站根据为多 RRU合并小区中各个 RRU配置的不同的 CS I-RS , 以 及各个所述 CS I-RS对应的 RSRP ,获取多 RRU合并小区或者所述多 RRU合并 小区及其邻小区中的各个 RRU的 RSRP。  In a first possible implementation, in combination with the first aspect, the acquiring, by the base station, the RSRP of each RRU in the multiple RRU merged cell or the multiple RRU merged cell and its neighboring cell includes: The different CS I-RSs of the RRUs in the RRU merged cell and the RSRPs corresponding to the CS I-RSs are obtained, and the RSRPs of the multiple RRU merged cells or the RRUs of the multiple RRU merged cells and their neighboring cells are acquired.
在第二种可能的实现方式中， 结合第一方面， 当所述基站获取所述多 RRU合并小区中的各个 RRU的 RSRP之后， 还包括：  In a second possible implementation, in combination with the first aspect, after the acquiring, by the base station, the RSRP of each RRU in the multiple RRU merged cell, the method further includes:
根据获取的多 RRU合并小区中的各个 RRU的所述 RSRP , 所述基站调整 多 RRU合并小区中至少一个 RRU的下行发射功率。  The base station adjusts downlink transmit power of at least one RRU in the multiple RRU merged cell according to the RSRP of each RRU in the acquired multiple RRU merged cell.
在第三种可能的实现方式中， 结合第一方面中第二种可能的实现方式， 所述基站调整所述多 RRU合并小区中的至少一个 RRU的下行发射功率包括： 所述基站设置所述多 RRU合并小区中至少一个 RRU的输出功率调整值， 以使得所述至少一个 RRU釆用调整之后的下行功率进行发射； 或者，  In a third possible implementation manner, in combination with the second possible implementation manner of the first aspect, the determining, by the base station, the downlink transmit power of the at least one RRU in the multiple RRU merged cell includes: The output power adjustment value of the at least one RRU in the multi-RRU merged cell, so that the at least one RRU is transmitted by using the adjusted downlink power; or
所述基站设置所述多 RRU合并小区中至少一个 RRU的下行功率配置值， 以使得所述至少一个 RRU釆用配置的下行功率进行发射。  The base station sets a downlink power configuration value of at least one RRU in the multiple RRU merged cell, so that the at least one RRU uses the configured downlink power to transmit.
在第四种可能的实现方式中， 结合第一方面， 基站获取所述多 RRU合 并小区及其邻小区中的各个 RRU的 RSRP之后， 还包括： In a fourth possible implementation manner, in combination with the first aspect, the base station acquires the multiple RRU After the RSRP of each RRU in the cell and its neighboring cells, the method further includes:
根据获取的所述多 RRU合并小区及其邻小区中的各个 RRU的 RSRP , 所 述基站将所述多 RRU合并小区调整为新多 RRU合并小区， 所述新多 RRU合 并小区包括所述多 RRU合并小区中的部分或者全部 RRU , 并且包括所述多 RRU合并小区的邻小区中部分或者全部 RRU。  And the base station adjusts the multiple RRU merged cell to a new multi-RRU merged cell, where the new multi-RRU merged cell includes the multiple RRUs, according to the acquired RSRPs of the RRUs of the multiple RRU merged cells and their neighboring cells. Merging some or all of the RRUs in the cell, and including some or all of the RRUs in the neighboring cells of the multiple RRU merged cells.
第二方面， 本发明提供一种参考信号接收功率的测量装置， 包括： 配置单元， 用于为多 RRU合并小区或者所述多 RRU合并小区及其邻小 区中的各个 RRU配置不同时频位置的 CS I-RS;  In a second aspect, the present invention provides a device for measuring reference signal received power, including: a configuration unit, configured to configure different time-frequency locations for multiple RRU merge cells or respective RRUs in the multiple RRU merged cells and their neighboring cells CS I-RS;
发送单元， 用于将各个所述 CS I-RS发送给用户设备 UE , 以便所述 UE 根据各个所述 CS I-RS的时频位置测量参考信号接收功率 RSRP;  a sending unit, configured to send each of the CS I-RSs to the user equipment UE, so that the UE measures the reference signal received power RSRP according to the time-frequency position of each of the CS I-RSs;
获取单元， 用于接收所述 UE上 ^艮的各个所述 CS I-RS 以及与各个所述 CS I-RS对应的 RSRP , 并获取所述多 RRU合并小区或者所述多 RRU合并小区 及其邻小区中的各个 RRU的 RSRP。  An acquiring unit, configured to receive each of the CS I-RSs on the UE, and RSRPs corresponding to the CS I-RSs, and acquire the multiple RRU merged cells or the multiple RRU merged cells and RSRP of each RRU in the neighboring cell.
在第一种可能的实现方式中， 结合第二方面， 所述获取单元用于： 根据为多 RRU合并小区中各个 RRU配置的不同的 CS I-RS , 以及各个所 述 CS I-RS对应的 RSRP ,获取多 RRU合并小区或者所述多 RRU合并小区及其 邻小区中的各个 RRU的 RSRP。  In a first possible implementation, in combination with the second aspect, the acquiring unit is configured to: according to different CS I-RSs configured for each RRU in a multi-RRU merged cell, and corresponding to each of the CS I-RSs The RSRP obtains the RSRP of each RRU in the multiple RRU merged cell or the multiple RRU merged cell and its neighboring cells.
在第二种可能的实现方式中， 结合第二方面， 所述装置还包括： 第一处理单元， 用于根据获取的多 RRU合并小区中的各个 RRU的所述 RSRP , 调整所述多 RRU合并小区中至少一个 RRU的下行发射功率。  In a second possible implementation, in combination with the second aspect, the apparatus further includes: a first processing unit, configured to adjust the multiple RRU merge according to the RSRP of each RRU in the acquired multiple RRU merged cell Downlink transmit power of at least one RRU in the cell.
在第三种可能的实现方式中， 结合第二方面中的第二种可能的实现方 式， 所述第一处理单元包括：  In a third possible implementation, in combination with the second possible implementation in the second aspect, the first processing unit includes:
第一设置模块， 用于设置所述多 RRU合并小区中至少一个 RRU的输出 功率调整值， 以使得所述至少一个 RRU釆用调整之后的下行功率进行发射； 或者，  a first setting module, configured to set an output power adjustment value of the at least one RRU in the multiple RRU merged cell, so that the at least one RRU is used to transmit the adjusted downlink power; or
第二设置模块， 用于设置所述多 RRU合并小区中至少一个 RRU的下行 功率配置值， 以使得所述至少一个 RRU釆用配置的下行功率进行发射。 在第四种可能的实现方式中， 结合第二方面， 所述装置还包括： 第二处理单元， 用于根据获取的所述多 RRU合并小区及其邻小区中的 各个 RRU的 RSRP, 将所述多 RRU合并小区调整为新多 RRU合并小区， 所述 新多 RRU合并小区包括所述多 RRU合并小区中的部分或者全部 RRU,并且包 括所述多 RRU合并小区的邻小区中部分或者全部 RRU。 And a second setting module, configured to set a downlink power configuration value of the at least one RRU in the multiple RRU merged cell, so that the at least one RRU uses the configured downlink power to transmit. In a fourth possible implementation, in combination with the second aspect, the device further includes: a second processing unit, configured to: according to the obtained RSRP of each RRU in the multiple RRU merged cell and its neighboring cells, The multi-RRU merged cell is adjusted to be a new multi-RRU merged cell, where the new multi-RRU merged cell includes some or all of the RRUs in the multi-RRU merged cell, and includes some or all of the RRUs in the neighboring cells of the multi-RRU merged cell .
本发明实施例提供一种参考信号接收功率的测量方法及装置， 通过基 站为多 RRU合并小区或者所述多 RRU合并小区及其邻小区中的各个 RRU配 置不同时频位置的 CSI-RS; 所述基站将各个所述 CSI-RS发送给 UE, 以便 所述 UE 4艮据各个所述 CSI-RS的时频位置测量 RSRP; 所述基站接收所述 UE 上才艮的各个所述 CSI-RS以及与各个所述 CSI-RS对应的 RSRP, 并获取所述 多 RRU合并小区或者所述多 RRU合并小区及其邻小区中的各个 RRU的 RSRP。  An embodiment of the present invention provides a method and a device for measuring reference signal received power, where a base station is configured to configure CSI-RSs of different time-frequency positions for multiple RRU merged cells or for multiple RRUs in the multiple RRU merged cells and their neighboring cells. Transmitting, by the base station, each of the CSI-RSs to the UE, so that the UE 4 measures the RSRP according to the time-frequency positions of the CSI-RSs; and the base station receives each of the CSI-RSs on the UE. And an RSRP corresponding to each of the CSI-RSs, and acquiring an RSRP of each of the multiple RRU merged cells or the multiple RRU merged cells and their neighboring cells.
与现有技术中进行参考信号接收功率的测量时， 仅能获得多个 RRU信 号合并后的接收功率， 这样当出现多 RRU合并小区越区覆盖时， 由于无法 获得各个 RRU的下行参考信号接收功率， 导致无法针对越区覆盖的 RRU进 行功率设置相比， 本发明实施例提供的方案可以通过为多 RRU合并小区或 者所述多 RRU合并小区及其邻小区中的各个 RRU配置不同的 CSI-RS , 使得 终端根据可以 CSI-RS的时频位置测量 RSRP,从而获取各个 RRU的参考信号 接收功率。  When the measurement of the received power of the reference signal is performed in the prior art, only the combined received power of the multiple RRU signals can be obtained, so that when multiple RRU merged cell coverage occurs, the downlink reference signal received power of each RRU cannot be obtained. The solution provided by the embodiment of the present invention may be configured by configuring different CSI-RSs for multiple RRU merged cells or each RRU in the multiple RRU merged cells and their neighboring cells. And causing the terminal to measure the RSRP according to the time-frequency position of the CSI-RS, so as to obtain the reference signal receiving power of each RRU.
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简单地介绍， 显而易见地， 下面描述中的附图仅仅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。 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, the drawings to be used in the embodiments or the description of the prior art will be briefly described below, and obviously, in the following description The drawings are only some of the embodiments of the present invention, and other drawings may be obtained from those skilled in the art without departing from the drawings.
图 1为本发明实施例 1提供的一种参考信号接收功率的测量方法的流 程图； 1 is a flow chart of a method for measuring reference signal received power according to Embodiment 1 of the present invention; Cheng Tu
图 2为本发明实施例 1提供的另一种参考信号接收功率的测量方法的 流程图；  2 is a flowchart of another method for measuring reference signal received power according to Embodiment 1 of the present invention;
图 3为本发明实施例 1提供的越区覆盖示意图；  3 is a schematic diagram of coverage of a handover according to Embodiment 1 of the present invention;
图 4为本发明实施例 1提供的另一种参考信号接收功率的测量方法的 流程图；  4 is a flowchart of another method for measuring reference signal received power according to Embodiment 1 of the present invention;
图 5为本发明实施例 1提供的另一种参考信号接收功率的测量装置的 框图；  FIG. 5 is a block diagram of another apparatus for measuring reference signal received power according to Embodiment 1 of the present invention; FIG.
图 6为本发明实施例 1提供的另一种参考信号接收功率的测量装置的 框图；  6 is a block diagram of another apparatus for measuring reference signal received power according to Embodiment 1 of the present invention;
图 7为本发明实施例 2提供的另一种基站的框图。  FIG. 7 is a block diagram of another base station according to Embodiment 2 of the present invention.
具体实施方式 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， 所描述的实施例仅仅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。 The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. example. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.
实施例 1  Example 1
本发明实施例提供一种参考信号接收功率的测量方法， 该方法的执行 主体为基站， 如图 1所示， 该方法包括：  An embodiment of the present invention provides a method for measuring a received power of a reference signal. The method is performed by a base station. As shown in FIG. 1, the method includes:
步骤 101 ,基站为多射频拉远单元 RRU合并小区或者所述多 RRU合并小 区及其邻小区中的各个 RRU 配置不同时频位置的信道状态信息参考信号 CSI-RS;  Step 101: The base station configures a channel state information reference signal CSI-RS of different time-frequency positions for each RRU in the multi-radio remote unit RRU merged cell or the multiple RRU merged area and its neighboring cells;
RRU为射频拉远单元， 指通过光纤将射频单元拉到远端覆盖目标区域， 其中，光纤中传输的为基带信号。基带处理单元（Bui lding Baseband Uni te , BBU )集中放置在机房， RRU可安装在天线端， 一个 BBU可以支持多个 RRU。 由于基站间的距离过小， 通过调整天线下倾角等方式已经很难解决小 区间的干扰， 因此引入了多 RRU合并小区的技术。 其中多 RRU合并小区， 即全小区发射， 分扇区 （覆盖区）接收。 将一个小区的覆盖范围划分为多 个扇区或多个小覆盖区， 在各个扇区或小覆盖区由不同的接收天线进行接 收， 所有扇区或覆盖区的发射信号相同。 在上行方向， 多个 RRU接收的信 号分别送入 BBU进行处理， 在下行方向， 生成的下行信号复制为多份发送 给各个 RRU, 从而实现全小区方式的效果。 The RRU is a radio remote unit, which means that the radio unit is pulled to the remote end to cover the target area through the optical fiber, and the baseband signal is transmitted in the optical fiber. Baseband processing unit (Bui lding Baseband Uni te, The BBU is centrally placed in the equipment room. The RRU can be installed at the antenna end. One BBU can support multiple RRUs. Since the distance between the base stations is too small, it is difficult to solve the interference between the cells by adjusting the downtilt angle of the antenna, etc., so the technology of multi-RRU combined cells is introduced. Among them, multiple RRU merged cells, that is, full cell transmission, and sectorized (coverage area) reception. The coverage of one cell is divided into multiple sectors or multiple small coverage areas, and each sector or small coverage area is received by different receiving antennas, and the transmission signals of all sectors or coverage areas are the same. In the uplink direction, the signals received by the multiple RRUs are sent to the BBU for processing. In the downlink direction, the generated downlink signals are copied into multiple copies and sent to the RRUs, thereby achieving the effect of the whole cell mode.
步骤 102 , 所述基站将各个所述 CSI-RS发送给用户设备 UE, 以便所述 UE根据各个所述 CSI-RS的时频位置测量参考信号接收功率 RSRP;  Step 102: The base station sends each CSI-RS to the user equipment UE, so that the UE measures the reference signal received power RSRP according to the time-frequency position of each CSI-RS.
基站可以为不同的 RRU分配不同的 CSI-RS , 并发送给 UE。 其中， 不同 的 RRU对应的 CSI-RS的时频位置不同。  The base station may allocate different CSI-RSs to different RRUs and send them to the UE. The time-frequency positions of the CSI-RSs corresponding to different RRUs are different.
RSRP是 LTE网络中可以代表无线信号强度的关键参数之一， 为在某个 符号内承载参考信号的所有资源单元（Resource Element , RE )上接收到 的信号功率的平均值。  RSRP is one of the key parameters in the LTE network that can represent the strength of the wireless signal. It is the average of the received signal power on all resource elements (Resource Element, RE) carrying the reference signal within a certain symbol.
现有技术中测量小区下行信号强度时， 通常根据 CRS测量 RSRP , 但是 现有技术测量的 RSRP是以小区为单位， 即该小区多个 RRU总的下行 RSRP 的叠加值。 而本发明通过基站为各个 RRU配置不同的 CSI-RS ,使得 UE通过 CSI-RS的时频位置测量 RSRP, 可以获得小区下各个 RRU的 RSRP, 即获得 RRU级别的下行 RSRP。  When measuring the downlink signal strength of a cell in the prior art, the RSRP is generally measured according to the CRS. However, the RSRP measured by the prior art is a cell, that is, a superimposed value of the total downlink RSRP of multiple RRUs of the cell. The present invention uses the base station to configure different CSI-RSs for each RRU, so that the UE can measure the RSRP of each RRU in the cell by using the time-frequency position of the CSI-RS, that is, obtain the downlink RSRP of the RRU level.
步骤 103 ,所述基站接收所述 UE上 ^艮的各个所述 CSI-RS以及与各个所 述 CSI-RS对应的 RSRP,并获取所述多 RRU合并小区或者所述多 RRU合并小 区及其邻小区中的各个 RRU的 RSRP。  Step 103: The base station receives each of the CSI-RSs on the UE and RSRPs corresponding to the CSI-RSs, and acquires the multiple RRU merged cells or the multiple RRU merged cells and their neighbors. RSRP of each RRU in the cell.
本步骤中， 基站通过内部映射获得各个 RRU的 RSRP, 具体的， 基站根 据为多 RRU合并小区中各个 RRU配置的不同的 CSI-RS ,以及各个所述 CSI-RS 对应的 RSRP, 获取多 RRU合并小区或者所述多 RRU合并小区及其邻小区中 的各个 RRU的 RSRP。 本发明实施例提供一种参考信号接收功率的测量方法， 通过为多 RRU 合并小区或者所述多 RRU合并小区及其邻小区中的各个 RRU 配置不同的 CSI-RS, 使得终端根据可以 CSI-RS 的时频位置测量 RSRP, 从而获取各个 RRU的参考信号接收功率。 In this step, the base station obtains the RSRP of each RRU through the internal mapping. Specifically, the base station acquires multiple RRU merges according to different CSI-RSs configured for each RRU in the multiple RRU merged cells and RSRP corresponding to each of the CSI-RSs. The RSRP of each RRU in the cell or the multiple RRU merged cell and its neighboring cells. An embodiment of the present invention provides a method for measuring a received power of a reference signal, by configuring different CSI-RSs for each RRU in a multi-RRU merged cell or the multiple RRU merged cell and its neighboring cells, so that the terminal can perform CSI-RS according to the CSI-RS. The time-frequency position measures RSRP to obtain the reference signal received power of each RRU.
本发明提供另一种参考信号接收功率的测量方法， 如图 2 所示， 该方 法包括：  The present invention provides another method for measuring the received power of a reference signal. As shown in FIG. 2, the method includes:
步骤 201,基站为多射频拉远单元 RRU合并小区中的各个 RRU配置不同 时频位置的信道状态信息参考信号 CSI-RS;  Step 201: The base station configures a channel state information reference signal CSI-RS of different time-frequency positions for each RRU in the RRU merged cell of the multi-radio remote unit.
基站可以为多 RRU合并小区中不同的 RRU配置不同时频位置的 CSI-RS, 其中， 不同的 CSI-RS指 CSI-RS的时频位置不同， 时频位置指时间维度的 资源和频率维度的资源交叉的资源位置。 时间维度的资源可以为不同的传 输时间间隔 （Transmission Time Interval, TTI ), 频率维度的资源可以 为不同的物理资源块 (Physical Resource Block, PRB )。 具体的， 基站为 各 RRU配置 CSI-RS时， 只要保证多 RRU合并小区中的各个 RRU的 CSI-RS 不同即可， 因此可以通过通信协议中规定的 CSI-RS的不同配置为各 RRU确 定 CSI-RS即可。  The base station may configure CSI-RSs of different time-frequency positions for different RRUs in the multiple RRU combined cells, where different CSI-RSs refer to different time-frequency positions of the CSI-RS, and the time-frequency positions refer to resources and frequency dimensions of the time dimension. The resource location where resources are crossed. The resources of the time dimension may be different Transmission Time Intervals (TTIs), and the resources of the frequency dimension may be different Physical Resource Blocks (PRBs). Specifically, when the base station configures the CSI-RS for each RRU, it is only required to ensure that the CSI-RSs of the RRUs in the multiple RRU merged cells are different. Therefore, the CSI can be determined for each RRU by using different configurations of the CSI-RSs specified in the communication protocol. -RS is fine.
步骤 202, 基站将各个所述 CSI-RS发送给用户设备 UE, 以便所述 UE 根据各个 CSI-RS的时频位置测量参考信号接收功率 RSRP;  Step 202: The base station sends each of the CSI-RSs to the user equipment UE, so that the UE measures the reference signal received power RSRP according to the time-frequency position of each CSI-RS.
本步骤中， 基站可以通过无线资源控制 （Radio Resource Control, RRC)连接重配置消息的发送将各个 CSI-RS发送给 UE。  In this step, the base station may send each CSI-RS to the UE by using a Radio Resource Control (RRC) connection reconfiguration message.
RSRP是 LTE网络中可以代表无线信号强度的关键参数之一， 为在某个 符号内承载参考信号的所有资源单元（Resource Element, RE)上接收到 的信号功率的平均值。  RSRP is one of the key parameters in an LTE network that can represent the strength of a wireless signal. It is the average of the received signal power on all Resource Elements (REs) that carry the reference signal within a symbol.
步骤 203, UE接收基站发送的为各个 RRU配置的 CSI-RS,并根据 CSI-RS 的时频位置测量 RSRP;  Step 203: The UE receives the CSI-RS configured by the base station for each RRU, and measures the RSRP according to the time-frequency position of the CSI-RS.
在本步骤中， UE通过接收基站发送的 RRC连接重配置消息获得基站为 各个 RRU配置的 CSI-RS, 查询 CSI-RS对应的周期和偏移， 并根据查询到的 CSI-RS对应的周期和偏移计算 CSI-RS的时频位置，UE在计算获得的 CSI-RS 的时频位置上测量 RSRP。 In this step, the UE obtains the CSI-RS configured by the base station for each RRU by receiving the RRC connection reconfiguration message sent by the base station, and queries the period and offset corresponding to the CSI-RS, and according to the query. The period and offset corresponding to the CSI-RS calculates the time-frequency position of the CSI-RS, and the UE measures the RSRP at the time-frequency position of the obtained CSI-RS.
步骤 204, UE将各个所述 CSI-RS以及测量的各个 RRU对应的 RSRP上 报给基站；  Step 204: The UE reports the respective CSI-RSs and the RSRPs corresponding to the measured RRUs to the base station.
可选的， UE可以釆用 CSI-RS RSRP测量 告的形式将各个所述 CSI-RS 以及测量的各个 RRU对应的 RSRP上 ^艮给基站。 即当 UE测量到的相邻的某 个 RRU的 CSI-RS RSRP与本 RRU的 CSI-RS RSRP的差高于预设门限时， 触 发 CSI-RS RSRP测量 ^艮告的上 其中， 本 RRU可以为多 RRU合并小区中 的任一个 RRU,其相邻的 RRU可以为与本 RRU直接相邻的 RRU,其相邻的 RRU 也为多 RRU 合并小区中的 RRU; 预设门限可以根据经验进行设置。 其中 CSI-RS RSRP测量才艮告中包括本 RRU的 CSI-RS,以及本 RRU的 CSI-RS RSRP, 本 RRU相邻的各个 RRU的 CSI-RS, 以及本 RRU相邻的各个 RRU的 CSI-RS RSRP。  Optionally, the UE may send each of the CSI-RSs and the measured RSRPs of the respective RRUs to the base station in the form of CSI-RS RSRP measurement reports. That is, when the difference between the CSI-RS RSRP of one of the adjacent RRUs measured by the UE and the CSI-RS RSRP of the RRU is higher than a preset threshold, the CSI-RS RSRP measurement is triggered, and the RRU may For any RRU in a multi-RRU merged cell, the neighboring RRUs may be RRUs directly adjacent to the RRU, and the adjacent RRUs are also RRUs in the multiple RRU merged cells; the preset thresholds may be set according to experience. . The CSI-RS RSRP measurement report includes the CSI-RS of the RRU, and the CSI-RS RSRP of the RRU, the CSI-RS of each RRU adjacent to the RRU, and the CSI of each RRU adjacent to the RRU. RS RSRP.
另夕卜， UE将各个所述 CSI-RS以及测量的各个 RRU对应的 RSRP上报给 基站时还可以釆用其他的方式， 例如釆用设置定时器的方式， 当设置的时 间到达时，则向基站上 ^艮各个所述 CSI-RS以及测量的各个 RRU对应的 RSRP。 也就是说本发明实施例并不限制 UE上报的方式。  In addition, when the UE reports each of the CSI-RSs and the measured RSRPs corresponding to the RRUs to the base station, other methods may be used, for example, by setting a timer, when the set time arrives, Each of the CSI-RSs and the RSRPs corresponding to the measured RRUs are measured on the base station. That is to say, the embodiment of the present invention does not limit the manner in which the UE reports.
步骤 205,基站接收 UE上 ^艮的各个所述 CSI-RS以及与各个所述 CSI-RS 对应的 RSRP, 并获取所述多 RRU合并小区中的各个 RRU的 RSRP;  Step 205: The base station receives each of the CSI-RSs on the UE and the RSRPs corresponding to the CSI-RSs, and acquires RSRPs of the RRUs in the multiple RRU merged cells.
在本步骤中， 基站根据接收到的 UE上报的各个所述 CSI-RS 以及与各 个所述 CSI-RS对应的 RSRP, 通过内部映射获得各个 RRU的 RSRP。 具体的， 基站根据在步骤 201 中为多 RRU 合并小区中的各个 RRU 配置的不同的 CSI-RS, 以及接收到的 UE上 ^艮的各个所述 CSI-RS对应的 RSRP, 进行映射， 即可获得多 RRU合并小区中的各个 RRU的 RSRP。  In this step, the base station obtains the RSRP of each RRU through internal mapping according to each of the CSI-RSs reported by the received UE and the RSRP corresponding to each of the CSI-RSs. Specifically, the base station performs mapping according to the different CSI-RSs configured for each RRU in the multiple RRU merged cell in step 201, and the RSRP corresponding to each of the CSI-RSs on the received UE. The RSRP of each RRU in the multiple RRU merged cell is obtained.
步骤 206, 根据获取的所述多 RRU合并小区中的各个 RRU的所述 RSRP, 基站调整所述多 RRU合并小区中至少一个 RRU的下行发射功率。  Step 206: The base station adjusts downlink transmit power of at least one RRU in the multiple RRU merged cell according to the obtained RSRP of each RRU in the multiple RRU merged cell.
在本实施例中， 如图 3所示， UE虽处于小区 CELL1的覆盖区域， 其中， CELLl的覆盖区域以黑线框表示，但 CELLl的覆盖区域内 CELL2信号相对较 强， 使得 UE驻留在 CELL2中， 由于现有技术中测量下行信号强度时仅能获 得小区级的 RSRP , 不能获得小区内各个 RRU的 RSRP , 因此在 CELL1的覆盖 区域仅可以知道 CELL2 的下行信号较强， 存在越区覆盖， 但无法具体知道 是 CELL2中的哪个 RRU功率设置较大， 因此无法进行具体调整。 In this embodiment, as shown in FIG. 3, the UE is in the coverage area of the cell CELL1, where The CELL1 coverage area is indicated by a black line frame, but the CELL2 signal in the coverage area of the CELL1 is relatively strong, so that the UE resides in the CELL2. Because the downlink signal strength is measured in the prior art, only the cell-level RSRP can be obtained, and the uplink cannot be obtained. The RSRP of each RRU in the small area, therefore, only the CELL2 downlink signal is strong in the coverage area of CELL1, and there is coverage in the area, but it is impossible to know specifically which RRU power setting in CELL2 is large, so it is impossible to make specific adjustment.
另外， 还存在另一种情况， 在多 RRU合并小区中， 若存在导频污染， 即 UE驻留的某一点存在过多的强导频却没有一个足够强的主导频使其稳定 驻留， 也就是说各个多 RRU合并小区的下行信号强度接近， 使 UE无法稳定 驻留在某个小区。 由于现有技术中测量下行信号强度时仅能获得小区级的 RSRP , 不能获得小区内各个 RRU的 RSRP , 因此即使我们知道某些多 RRU合 并小区之前信号接近， 存在导频污染， 但不清楚该调整哪个 RRU 的下行功 率设置， 因此无法进行具体调整。  In addition, there is another case where, in a multi-RRU combined cell, if there is pilot pollution, that is, there is too many strong pilots at a certain point where the UE camps but there is not a sufficiently strong dominant frequency to make it stably camp. That is to say, the downlink signal strength of each multi-RRU combined cell is close, so that the UE cannot stably reside in a certain cell. Since only the cell-level RSRP can be obtained when measuring the downlink signal strength in the prior art, the RSRP of each RRU in the cell cannot be obtained. Therefore, even if we know that some multi-RRU merged cells are close to each other, there is pilot pollution, but it is not clear. The RRU's downstream power setting is adjusted, so no specific adjustments can be made.
因此， 本实施例可以根据多 RRU合并小区中的各个 RRU的 RSRP , 对存 在越区覆盖的场景中确定 CELL2中某个 RRU的 RSRP设置过大， 导致 CELL2 存在越区覆盖， 此时可以调整 CELL2中 RSRP设置过大的 RRU。 另外， 对存 在导频污染的场景中，可以根据多 RRU合并小区中的至少一个 RRU的 RSRP , 对至少一个 RRU进行下行功率设置， 从而避免多 RRU合并小区的导频污染。  Therefore, in this embodiment, according to the RSRP of each RRU in the multi-RRU merged cell, it is determined that the RSRP setting of an RRU in the CELL2 is too large in the scenario where the coverage is present, and the CELL2 has a coverage, and the CELL2 can be adjusted at this time. The RSRP is set to an excessive RRU. In addition, in a scenario where pilot pollution exists, downlink power setting may be performed on at least one RRU according to RSRP of at least one RRU in the multiple RRU merged cell, thereby avoiding pilot pollution of the multiple RRU merged cells.
具体的， 本步骤中， 可以釆用以下两种方式进行 RRU的下行功率设置： 第一， 基站设置多 RRU合并小区中至少一个 RRU的输出功率调整值， 以使 得所述至少一个 RRU釆用调整之后的下行功率进行发射；  Specifically, in this step, the downlink power setting of the RRU may be performed in the following two manners: First, the base station sets an output power adjustment value of at least one RRU in the multiple RRU merged cell, so that the at least one RRU is adjusted. The subsequent downlink power is transmitted;
此方式为对已有参数的设置， 即根据已有参数小区 ID -〉拒-〉框-〉槽 -〉 RRU输出功率调整值进行设置， 其中， 拒为小区 ID中的一种参数， 框为 拒中的一种参数， 槽为框中的一种参数， 设置槽中的参数： RRU输出功率调 整值。 RRU输出功率调整值即为在 RRU发射功率的基础上增加或者减少几个 dB的偏置。 例如， 在存在越区覆盖的场景中， 降低确定 CELL2中 RSRP设置 过大的 RRU 的发射功率， 使得消除越区覆盖情况。  This mode is to set the existing parameters, that is, according to the existing parameter cell ID -> reject -> box -> slot -> RRU output power adjustment value, wherein, one of the parameters in the cell ID is rejected, the box is One of the parameters rejected, the slot is a parameter in the box, and the parameters in the slot are set: RRU output power adjustment value. The RRU output power adjustment value is the offset that is increased or decreased by a few dB based on the RRU transmit power. For example, in a scenario where there is coverage, the transmission power of the RRU that determines the excessive RSRP setting in CELL2 is lowered, so that the coverage of the handover is eliminated.
第二， 基站设置多 RRU合并小区中至少一个 RRU的下行功率配置值， 以使得所述至少一个 RRU釆用配置的下行功率进行发射。 Second, the base station sets a downlink power configuration value of at least one RRU in the multiple RRU merged cell, The transmitting is performed such that the at least one RRU is configured with downlink power.
此方式为设置新增参数， 即根据小区 ID -〉小区内 RRU个数-〉拒-〉框-〉 槽-〉各 RRU级下行功率配置进行设置， 即对小区内各个 RRU的下行功率进 行重新设置。 需要说明的是， 当小区为多 RRU合并小区时， 该新增的 "各 RRU级下行功率配置，， 参数生效， 当小区为普通小区时， 此新增的 "各 RRU 级下行功率配置" 参数无效， 仍然釆用原实现方式。 这里的 "下行功率配 置" 值就是每个小区的小区特定参考信号 （Cell-specific Reference Signal, CRS)导频信号的功率， 该值在基站侧可以理解为小区的发射功率。 例如， 在存在导频污染的场景下， 通过获得的各个多 RRU合并小区中至少 一个 RRU的 RSRP, 针对 RRU级别进行至少一个 RRU的下行功率的设置， 使 得其中一个小区为主导频， 使 UE可以稳定驻留在此小区， 从而消除导频污 染。  In this mode, the new parameters are set, that is, according to the cell ID -> number of RRUs in the cell -> reject -> box -> slot -> RRU level downlink power configuration, that is, the downlink power of each RRU in the cell is re-established. Settings. It should be noted that when the cell is a multi-RRU merged cell, the newly added "RRU-level downlink power configuration, the parameters take effect, and when the cell is a normal cell, the newly added "RRU-level downlink power configuration" parameter Invalid, the original implementation is still used. The "downlink power configuration" value here is the power of the cell-specific reference signal (CRS) pilot signal of each cell, which can be understood as a cell at the base station side. For example, in the scenario where there is pilot pollution, the downlink power of at least one RRU is set for the RRU level by using the obtained RSRP of at least one RRU in each multi-RRU merged cell, so that one of the cells is the dominant frequency. So that the UE can be stably camped on this cell, thereby eliminating pilot pollution.
本发明实施例提供的一种参考信号接收功率的测量方法， 通过基站给 多 RRU合并小区配置不同时频位置的 CSI-RS,使得终端根据可以 CSI-RS的 时频位置测量 RSRP, 从而基站可以获取各个 RRU的 RSRP, 并且可以根据各 个 RRU的 RSRP进行调整功率， 使得可以避免越区覆盖情况以及导频污染情 况。  The method for measuring the reference signal received power according to the embodiment of the present invention, the base station is configured to configure the CSI-RS of different time-frequency positions for the multiple RRU combined cells, so that the terminal measures the RSRP according to the time-frequency position of the CSI-RS, so that the base station can The RSRP of each RRU is obtained, and the power can be adjusted according to the RSRP of each RRU, so that the coverage of the handover and the pilot pollution can be avoided.
本发明实施例提供另一种参考信号接收功率的测量方法， 如图 4所示， 该方法包括：  The embodiment of the invention provides another method for measuring the received power of the reference signal. As shown in FIG. 4, the method includes:
步骤 401 ,基站为多 RRU合并小区及其邻小区中的各个 RRU配置不同时 频位置的信道状态信息参考信号 CSI-RS;  Step 401: The base station configures a channel state information reference signal CSI-RS of different time-frequency positions for each RRU in the multiple RRU combined cell and its neighboring cells.
步骤 402, 基站将各个所述 CSI-RS发送给用户设备 UE, 以便所述 UE 根据各个 CSI-RS的时频位置测量参考信号接收功率 RSRP;  Step 402: The base station sends each CSI-RS to the user equipment UE, so that the UE measures the reference signal received power RSRP according to the time-frequency position of each CSI-RS.
在本步骤中， 基站下发为多 RRU合并小区以及邻小区中各个 RRU配置 的 CSI-RS给 UE, 其中多 RRU合并小区以及邻小区属于同一协作多点发送 / 接收 ( Coordinated Multiple Points Transmission/Reception, CoMP ) 管理集， 将多 RRU合并小区作为本小区， 其邻小区为与本小区直接相邻的 小区， CoMP管理集中最多可以包括 8个测量目标， 测量目标可以为小区， 也可以为 RRU。 In this step, the base station delivers the CSI-RSs configured for the multiple RRU merged cells and the RRUs in the neighboring cells to the UE, where the multiple RRU merged cells and the neighboring cells belong to the same coordinated multipoint transmission/reception (Coordinated Multiple Points Transmission/Reception) , CoMP) management set, the multiple RRU merged cell is used as the local cell, and the neighboring cell is directly adjacent to the local cell. In a cell, a CoMP management set may include up to eight measurement targets, and the measurement target may be a cell or an RRU.
步骤 403 , UE接收基站发送的为各个 RRU配置的 CSI-RS ,并根据 CSI-RS 的时频位置测量 RSRP;  Step 403: The UE receives the CSI-RS configured by the base station for each RRU, and measures the RSRP according to the time-frequency position of the CSI-RS.
步骤 404 , UE将各个所述 CS I-RS以及测量的多 RRU合并小区及其邻小 区中各个 RRU对应的 RSRP上 ^艮给基站；  Step 404: The UE sends the RSRP corresponding to each of the CS I-RS and the measured multiple RRU merged cell and its neighboring cells to the base station.
可选的， UE可以釆用 CS I-RS RSRP测量 告的形式将各个所述 CSI-RS 以及测量的各个 RRU对应的 RSRP上 ^艮给基站。 即当 UE测量到的相邻的某 个 RRU的 CSI-RS RSRP与本 RRU的 CSI-RS RSRP的差高于预设门限时， 触 发 CSI-RS RSRP测量报告的上报， 其中， 本 RRU可以为多 RRU合并小区中 的任一个 RRU,其相邻的 RRU可以为与本 RRU直接相邻的 RRU,其相邻的 RRU 也为多 RRU 合并小区中的 RRU; 预设门限可以根据经验进行设置。 其中 CSI-RS RSRP测量才艮告中包括本 RRU的 CSI-RS ,以及本 RRU的 CS I-RS RSRP, 本 RRU相邻的各个 RRU的 CSI-RS , 以及本 RRU相邻的各个 RRU的 CSI-RS RSRP。  Optionally, the UE may send each of the CSI-RSs and the measured RSRPs of the respective RRUs to the base station in the form of a CS I-RS RSRP measurement. That is, when the difference between the CSI-RS RSRP of the neighboring RRU and the CSI-RS RSRP of the RRU is higher than the preset threshold, the CSI-RS RSRP measurement report is triggered, where the RRU may be Any RRU in a multi-RRU merged cell, the neighboring RRUs may be RRUs directly adjacent to the RRU, and the adjacent RRUs are also RRUs in the multiple RRU merged cells; the preset threshold may be set according to experience. The CSI-RS RSRP measurement report includes the CSI-RS of the RRU, and the CS I-RS RSRP of the RRU, the CSI-RS of each RRU adjacent to the RRU, and the CSI of each RRU adjacent to the RRU. -RS RSRP.
另夕卜， UE将各个所述 CSI-RS以及测量的各个 RRU对应的 RSRP上报给 基站时还可以釆用其他的方式， 例如釆用设置定时器的方式， 当设置的时 间到达时，则向基站上 ^艮各个所述 CS I-RS以及测量的各个 RRU对应的 RSRP。 也就是说本发明实施例并不限制 UE上报的方式。  In addition, when the UE reports each of the CSI-RSs and the measured RSRPs corresponding to the RRUs to the base station, other methods may be used, for example, by setting a timer, when the set time arrives, Each of the CS I-RSs and the RSRPs corresponding to the measured RRUs are measured on the base station. That is to say, the embodiment of the present invention does not limit the manner in which the UE reports.
步骤 405 ,基站接收 UE上报的各个所述 CSI-RS以及与多 RRU合并小区 及其邻小区中各个所述 CSI-RS对应的 RSRP,并获取所述多 RRU合并小区及 其邻小区中的各个 RRU的 RSRP;  Step 405: The base station receives each of the CSI-RSs reported by the UE, and RSRPs corresponding to the CSI-RSs in the multiple RRU merged cells and the neighboring cells thereof, and acquires each of the multiple RRU merged cells and their neighboring cells. RSRP of RRU;
本实施例中， 步骤 401-步骤 405与附图 1中步骤 201-步骤 205的操作 相同， 不同的是， 附图 2中， 仅是根据一个多 RRU合并小区的处理， 附图 4 为根据一个多 RRU合并小区以及其邻小区的处理， 但是具体的处理方式相 同， 具体可参看附图 2中步骤 201-步骤 205的操作的描述， 在此不——赘 述。 步骤 406,根据获取的所述多 RRU合并小区及其邻小区中的各个 RRU的 RSRP, 基站将所述多 RRU合并小区调整为新多 RRU合并小区； In this embodiment, steps 401 to 405 are the same as steps 201 to 205 in FIG. 1, except that in FIG. 2, only according to the processing of one multi-RRU merged cell, FIG. 4 is based on The processing of the multi-RRU merged cell and its neighboring cell, but the specific processing manner is the same. For details, refer to the description of the operations in step 201-step 205 in FIG. 2, and details are not described herein. Step 406: The base station adjusts the multiple RRU merged cell to a new multi-RRU merged cell according to the acquired RSRP of each RRU in the multiple RRU merged cell and its neighboring cell.
其中， 所述新多 RRU合并小区包括所述多 RRU合并小区中的部分或者 全部 RRU, 并且包括所述多 RRU合并小区的邻小区中部分或者全部 RRU。  The new multi-RRU merged cell includes some or all of the RRUs in the multiple RRU merged cells, and includes some or all of the RRUs in the neighboring cells of the multiple RRU merged cells.
在本实施例中， 由于在网络规划后期， 现网已完成多 RRU合并小区的 网络建设， 但由于长期参数设置、 射频 （Radio Frequency, RF )优化等工 作， 导致之前某些 RRU 的合并为一个小区的方案已不是最优， 即原先的某 几个 RRU合并为一个小区已不能得到最优的干扰抑制等效果。 而釆用现有 技术只能获得小区级的 RSRP, 如果假话重新进行多 RRU合并小区的规划， 只能将已存在的多 RRU合并小区拆分为普通小区， 再重新获取个普通小区 的 RSRP, 然后根据网规工具计算得到最优的新多 RRU合并小区合并方案， 即选取哪些 RRU合并为一个小区， 这种方法在网络建设后期， 网络部署已 基本固定的情况下， 进行如此大的操作基本不可能， 且存在很大工作量。  In this embodiment, since the current network has completed the network construction of multiple RRU merged cells in the later stage of network planning, due to long-term parameter setting and radio frequency (RF) optimization, some of the previous RRUs are merged into one. The scheme of the cell is not optimal, that is, the combination of some original RRUs into one cell can not obtain the best interference suppression effect. However, only the cell-level RSRP can be obtained by using the existing technology. If the multi-RRU merged cell is re-planned, the existing multi-RRU merged cell can be split into common cells, and then the RSRP of the common cell is re-acquired. Then, according to the network specification tool, the optimal new multi-RRU combined cell merging scheme is calculated, that is, which RRUs are combined into one cell, and this method is performed in the latter stage of network construction, and the network deployment is basically fixed. Basically impossible, and there is a lot of work.
因此， 釆用本实施例提供的方案， 根据获取的多 RRU合并小区及其邻 小区中的各个 RRU的 RSRP, 以及网规工具的实现方法， 即可将多 RRU合并 小区调整为新多 RRU合并小区， 达到最优的干扰抑制等效果。  Therefore, by using the solution provided in this embodiment, according to the obtained RSRP of each RRU in the multi-RRU merged cell and its neighboring cells, and the implementation method of the network rule tool, the multi-RRU merged cell can be adjusted into a new multi-RRU merge. The cell achieves optimal interference suppression and other effects.
其中， 网规工具的实现方法为： 将多 RRU合并小区工参表、 邻小区列 表以及邻小区的 RSRP等信息输入到网规工具中， 根据基站间距离以及邻小 区列表给出各种不同的单频点网络 ( Single Frequency Network, SFN)合 并小区组合， 根据各种 SFN合并小区组合， 通过各小区中各 RRU的 RSRP测 量值， 得到釆用某种 SFN组合后， 全网的信号与干扰加噪声比 （Signal to Interference plus Noise Ratio, SINR), 最后获取 SINR最大， 即干 4尤最 小的 SFN组合为新多 RRU合并小区。  The method for implementing the network rule tool is: inputting information of multiple RRU merged cell work table, neighbor cell list, and RSRP of the neighboring cell into the network rule tool, and providing different types according to the distance between the base stations and the neighbor cell list. Single Frequency Network (SFN) combined cell combination, according to various SFN combined cell combinations, through the RSRP measurement values of each RRU in each cell, after obtaining a certain SFN combination, the signal and interference of the whole network are added. The signal to interference ratio (SINR) is finally obtained. The SFN combination with the largest SINR is the largest, and the SFN combination is the new multi-RRU combined cell.
其中， 多个 RRU合并为一个小区可以釆用以下两种合并方式： 第一， 由通道相同的多个 RRU合并为一个小区， 可以称为 SFN小区； 第二， 由 N 通道的 RRU和 M通道的 RRU合并为一个小区， 可以称为 N+M小区。  The combination of multiple RRUs into one cell may use the following two methods: First, multiple RRUs with the same channel are combined into one cell, which may be referred to as an SFN cell; Second, RRU and M channels by the N channel The RRUs are combined into one cell and may be referred to as an N+M cell.
本发明实施例提供的一种参考信号接收功率的测量方法， 通过基站给 多 RRU合并小区配置不同的 CSI-RS,使得终端根据可以 CSI-RS的时频位置 测量 RSRP, 从而基站可以获取各个 RRU的 RSRP, 并且可以根据多 RRU合并 小区以及邻小区中各个 RRU的 RSRP将原多 RRU合并小区调整为新多 RRU合 并小区， 使得达到最优的干扰抑制等效果。 A method for measuring reference signal received power provided by an embodiment of the present invention is provided by a base station The multiple RRU combining cells are configured with different CSI-RSs, so that the terminal measures the RSRP according to the time-frequency position of the CSI-RS, so that the base station can obtain the RSRP of each RRU, and can combine the RSRPs of the RRUs according to the multiple RRUs and the neighboring cells. The original multi-RRU combined cell is adjusted to a new multi-RRU combined cell, so that the optimal interference suppression and the like are achieved.
实施例 2  Example 2
本发明实施例提供一种参考信号接收功率的测量装置， 该装置可以为 基站， 如图 5所示， 该装置包括： 配置单元 501, 发送单元 502, 获取单元 503;  The embodiment of the present invention provides a device for measuring the received power of the reference signal, and the device may be a base station. As shown in FIG. 5, the device includes: a configuration unit 501, a sending unit 502, and an obtaining unit 503;
配置单元 501,用于为多 RRU合并小区或者所述多 RRU合并小区及其邻 小区中的各个 RRU配置不同时频位置的 CSI-RS;  The configuration unit 501 is configured to configure CSI-RSs of different time-frequency positions for the multiple RRU merged cells or the RRUs of the multiple RRU merged cells and their neighboring cells.
配置单元 501 可以为为多 RRU 合并小区中不同的 RRU 配置不同的 CSI-RS, 其中， 不同的 CSI-RS指 CSI-RS的时频位置不同， 时频位置指时 间维度的资源和频率维度的资源交叉的资源位置。 时间维度的资源可以为 具体的， 配置单元 501为各 RRU配置 CSI-RS时， 只要保证多 RRU合并小区 中的各个 RRU的 CSI-RS不同即可，因此可以通过通信协议中规定的 CSI-RS 的不同配置为各 RRU确定 CSI-RS即可。  The configuration unit 501 may be configured to configure different CSI-RSs for different RRUs in the multiple RRU merged cells, where different CSI-RSs refer to different time-frequency positions of the CSI-RS, and the time-frequency positions refer to resources and frequency dimensions of the time dimension. The resource location where resources are crossed. The resources of the time dimension may be specific. When the configuration unit 501 configures the CSI-RS for each RRU, the CSI-RS specified in the communication protocol may be adopted as long as the CSI-RSs of the RRUs in the multiple RRU merged cells are different. The different configurations are to determine the CSI-RS for each RRU.
发送单元 502, 用于将各个所述 CSI-RS发送给 UE, 以便所述 UE根据 各个所述 CSI-RS的时频位置测量 RSRP;  The sending unit 502 is configured to send each of the CSI-RSs to the UE, so that the UE measures the RSRP according to the time-frequency position of each of the CSI-RSs;
具体的， 发送单元 502将为多 RRU合并小区或者多 RRU合并小区以及 邻小区中各个 RRU配置的 CSI-RS 发送给 UE。  Specifically, the sending unit 502 sends the CSI-RS configured for the multiple RRU combined cell or the multiple RRU combined cell and each RRU in the neighboring cell to the UE.
发送单元 502 下发为多 RRU合并小区以及邻小区中各个 RRU 配置的 CSI-RS给 UE, 其中多 RRU合并小区以及邻小区属于同一 CoMP管理集， 将 多 RRU合并小区作为本小区， 其邻小区为与本小区直接相邻的小区， CoMP 管理集中最多可以包括 8个测量目标，测量目标可以为小区，也可以为 RRU。  The sending unit 502 is configured to send the CSI-RSs of the multiple RRU merged cells and the RRUs in the neighboring cells to the UE, where the multiple RRU merged cells and the neighboring cells belong to the same CoMP management set, and the multiple RRU merged cells are used as the local cell, and the neighboring cell For a cell directly adjacent to the cell, the CoMP management set may include up to eight measurement targets, and the measurement target may be a cell or an RRU.
发送单元 502可以通过 RRC连接重配置消息的发送将各个 CSI-RS发送 给 UE。 RSRP是 LTE网络中可以代表无线信号强度的关键参数之一， 为在某个 符号内承载参考信号的所有资源单元 RE上接收到的信号功率的平均值。 The sending unit 502 can send each CSI-RS to the UE by sending the RRC connection reconfiguration message. RSRP is one of the key parameters in an LTE network that can represent the strength of a wireless signal. It is the average of the received signal power on all resource elements RE that carry the reference signal within a certain symbol.
获取单元 503 ,用于接收所述 UE上 ^艮的各个所述 CSI-RS以及与各个所 述 CSI-RS对应的 RSRP,并获取所述多 RRU合并小区或者所述多 RRU合并小 区及其邻小区中的各个 RRU的 RSRP。  The acquiring unit 503 is configured to receive each of the CSI-RSs and the RSRPs corresponding to the CSI-RSs on the UE, and acquire the multiple RRU merged cells or the multiple RRU merged cells and their neighbors. RSRP of each RRU in the cell.
进一步的， 如图 6所示， 获取单元 503用于： 根据为多 RRU合并小区 中各个 RRU配置的不同的 CSI-RS , 以及各个所述 CSI-RS对应的 RSRP , 获 取模块 5032 , 用于获取多 RRU合并小区或者所述多 RRU合并小区及其邻小 区中的各个 RRU的 RSRP。  Further, as shown in FIG. 6, the obtaining unit 503 is configured to: acquire, according to different CSI-RSs configured for each RRU in the multi-RRU merged cell, and an RSRP corresponding to each of the CSI-RSs, an acquiring module 5032, configured to obtain The RSRP of each RRU in the multiple RRU merged cell or the multiple RRU merged cell and its neighboring cells.
进一步的， 如图 6所示， 当所述基站为多 RRU合并小区中的各个 RRU 配置不同的 CS I-RS时， 所述装置还包括： 第一处理单元 504 , 第一设置模 块 5041 , 第二设置模块 5042;  Further, as shown in FIG. 6, when the base station configures a different CS I-RS for each RRU in the multiple RRU merged cell, the apparatus further includes: a first processing unit 504, a first setting module 5041, Two setting module 5042;
其中， 第一处理单元 504 , 用于根据获取的多 RRU合并小区中的各个 RRU的所述 RSRP, 调整所述多 RRU合并小区中至少一个 RRU的下行发射功 率。  The first processing unit 504 is configured to adjust downlink transmit power of at least one RRU in the multiple RRU merged cell according to the RSRP of each RRU in the acquired multiple RRU merged cell.
具体的， 所述第一处理单元 504中的第一设置模块 5041 , 用于设置所 述多 RRU合并小区中至少一个 RRU的输出功率调整值， 以使得所述至少一 个 RRU釆用调整之后的下行功率进行发射；  Specifically, the first setting module 5041 of the first processing unit 504 is configured to set an output power adjustment value of at least one RRU in the multiple RRU merged cell, so that the at least one RRU uses the downlink after the adjustment. Power is transmitted;
RRU输出功率调整值即为在 RRU发射功率的基础上增加或者减少几个 dB的偏置。 例如， 在存在越区覆盖的场景中， 即 UE虽处于小区 CELL1的覆 盖区域，但 CELL1的覆盖区域内 CELL2信号相对较强，使得 UE驻留在 CELL2 中， 此时降低确定 CELL2中 RSRP设置过大的 RRU的发射功率， 使得消除越 区覆盖情况。  The RRU output power adjustment value is the offset that is increased or decreased by a few dB based on the RRU transmit power. For example, in the scenario where there is coverage, that is, the UE is in the coverage area of the cell CELL1, but the CELL2 signal in the coverage area of the CELL1 is relatively strong, so that the UE resides in the CELL2, and the RSRP setting in the CELL2 is determined to be lowered. The transmit power of a large RRU makes it possible to eliminate the coverage of the handover.
所述第一处理单元 504中的第二设置模块 5042 , 用于设置所述多 RRU 合并小区中至少一个 RRU的下行功率配置值， 以使得所述至少一个 RRU釆 用配置的下行功率进行发射。 在存在导频污染的场景下， 通过获得的各个 多 RRU合并小区中各个 RRU的 RSRP , 针对 RRU级别进行至少一个 RRU的下 行功率的设置，使得其中一个小区为主导频，使 UE可以稳定驻留在此小区， 从而消除导频污染。 The second setting module 5042 of the first processing unit 504 is configured to set a downlink power configuration value of at least one RRU in the multiple RRU merged cell, so that the at least one RRU is configured to use the configured downlink power to transmit. In the scenario where there is pilot pollution, the RSRP of each RRU in each multi-RRU merged cell is obtained, and at least one RRU is performed for the RRU level. The row power is set such that one of the cells is a dominant frequency, so that the UE can stably camp on the cell, thereby eliminating pilot pollution.
进一步的， 如图 6所示， 当基站为多 RRU合并小区及其邻小区中的各 个 RRU配置不同的 CS I-RS时， 所述装置还包括： 第二处理单元 505 ;  Further, as shown in FIG. 6, when the base station configures a different CS I-RS for each RRU in the multiple RRU merged cell and its neighboring cells, the apparatus further includes: a second processing unit 505;
第二处理单元 505 ,用于根据获取的所述多 RRU合并小区及其邻小区中 的各个 RRU的 RSRP, 将所述多 RRU合并小区调整为新多 RRU合并小区， 所 述新多 RRU合并小区包括所述多 RRU合并小区中的部分或者全部 RRU,并且 包括所述多 RRU合并小区的邻小区中部分或者全部 RRU。  The second processing unit 505 is configured to adjust the multiple RRU merged cell to a new multi-RRU merged cell according to the acquired RSRP of each RRU in the multiple RRU merged cell and its neighboring cell, where the new multi-RRU merged cell And including some or all of the RRUs in the multiple RRU merged cells, and including some or all of the RRUs in the neighboring cells of the multiple RRU merged cells.
本发明实施例提供一种参考信号接收功率的测量装置， 通过配置单元， 用于为多 RRU合并小区或者所述多 RRU合并小区及其邻小区中的各个 RRU 配置不同时频位置的 CS I-RS; 发送单元， 用于将各个所述 CSI-RS发送给 UE, 以便所述 UE根据各个所述 CS I-RS的时频位置测量 RSRP; 获取单元， 用于接收所述 UE上 ^艮的各个所述 CSI-RS以及与各个所述 CSI-RS对应的 RSRP, 并获取多 RRU合并小区或者所述多 RRU合并小区及其邻小区中的各 个 RRU的 RSRP。 本发明实施例提供的方案可以通过为多 RRU合并小区或者 所述多 RRU合并小区及其邻小区中的各个 RRU配置不同的 CSI-RS , 使得终 端根据可以 CSI-RS的时频位置测量 RSRP,从而获取各个 RRU的参考信号接 收功率。  An embodiment of the present invention provides a measurement device for receiving power of a reference signal, where the configuration unit is configured to configure CS I- at different time-frequency locations for each RRU in a multi-RRU merged cell or the multiple RRU merged cell and its neighboring cells. a transmitting unit, configured to send each of the CSI-RSs to the UE, so that the UE measures an RSRP according to a time-frequency position of each of the CS I-RSs; and an acquiring unit, configured to receive, by the UE, Each of the CSI-RSs and the RSRPs corresponding to the respective CSI-RSs, and acquires RSRPs of the multiple RRU merged cells or the RRUs of the multiple RRU merged cells and their neighboring cells. The solution provided by the embodiment of the present invention may be configured to configure different CSI-RSs for each RRU in the multiple RRU merged cell or the multiple RRU merged cell and its neighboring cells, so that the terminal measures the RSRP according to the time-frequency position of the CSI-RS. Thereby, the reference signal received power of each RRU is obtained.
本发明实施例提供一种基站， 如图 7所示， 该基站包括： 处理器 701 , 发射器 702 , 接收器 703;  The embodiment of the present invention provides a base station. As shown in FIG. 7, the base station includes: a processor 701, a transmitter 702, and a receiver 703.
处理器 701 ,用于为多 RRU合并小区或者所述多 RRU合并小区及其邻小 区中的各个 RRU配置不同时频位置的 CS I-RS;  The processor 701 is configured to configure CS I-RSs of different time-frequency locations for the multiple RRU merged cells or the multiple RRU merged cells and each RRU in the neighboring cell.
发射器 702 , 用于将各个所述 CSI-RS发送给 UE , 以便所述 UE根据各 个所述 CSI-RS的时频位置测量 RSRP;  The transmitter 702 is configured to send each of the CSI-RSs to the UE, so that the UE measures the RSRP according to the time-frequency positions of the CSI-RSs.
接收器 703 ,用于接收所述 UE上 ^艮的各个所述 CSI-RS以及与各个所述 CSI-RS对应的 RSRP; 所述处理器 701用于获取所述多 RRU合并小区或者所 述多 RRU合并小区及其邻小区中的各个 RRU的 RSRP。 进一步的， 所述处理器 701获取所述多 RRU合并小区或者所述多 RRU 合并小区及其邻小区中的各个 RRU的 RSRP时， 所述处理器 701具体用于： 根据为多 RRU合并小区中各个 RRU 配置的不同的 CSI-RS , 以及各个所述 CSI-RS对应的 RSRP, 获取多 RRU合并小区或者所述多 RRU合并小区及其邻 小区中的各个 RRU的 RSRP。 The receiver 703 is configured to receive each of the CSI-RSs on the UE and the RSRPs corresponding to the CSI-RSs. The processor 701 is configured to acquire the multiple RRU merged cells or the multiple The RSRP of each RRU in the RRU merged cell and its neighboring cells. Further, when the processor 701 acquires the RSRP of each RRU in the multiple RRU merged cell or the multiple RRU merged cell and the neighboring cell, the processor 701 is specifically configured to: according to the multiple RRU merged cell The different CSI-RSs of the respective RRUs and the RSRPs corresponding to the CSI-RSs acquire the RSRPs of the multiple RRU merged cells or the RRUs of the multiple RRU merged cells and their neighboring cells.
进一步的， 当所述基站为多 RRU合并小区中的各个 RRU 配置不同的 CSI-RS时，所述处理器 701还用于根据获取的多 RRU合并小区中的各个 RRU 的所述 RSRP , 调整所述多 RRU合并小区中至少一个 RRU的下行发射功率。  Further, when the base station configures different CSI-RSs for each RRU in the multiple RRU merged cell, the processor 701 is further configured to adjust the RSRP according to the RSRP of each RRU in the acquired multiple RRU merged cell. The downlink transmit power of at least one RRU in the multiple RRU merged cell.
具体的， 所述处理器 701设置所述多 RRU合并小区中至少一个 RRU的 输出功率调整值， 以使得所述至少一个 RRU釆用调整之后的下行功率进行 发射； 或者， 所述处理器 701设置所述多 RRU合并小区中至少一个 RRU的 下行功率配置值， 以使得所述至少一个 RRU釆用配置的下行功率进行发射。  Specifically, the processor 701 sets an output power adjustment value of at least one RRU in the multiple RRU merged cell, so that the at least one RRU uses the adjusted downlink power to transmit; or, the processor 701 sets The multiple RRU merges the downlink power configuration values of at least one RRU in the cell, so that the at least one RRU uses the configured downlink power to transmit.
RRU输出功率调整值即为在 RRU发射功率的基础上增加或者减少几个 dB的偏置。 例如， 在存在越区覆盖的场景中， 即 UE虽处于小区 CELL1的覆 盖区域，但 CELL1的覆盖区域内 CELL2信号相对较强，使得 UE驻留在 CELL2 中， 此时降低确定 CELL2中 RSRP设置过大的 RRU的发射功率， 使得消除越 区覆盖情况。  The RRU output power adjustment value is the offset that is increased or decreased by a few dB based on the RRU transmit power. For example, in the scenario where there is coverage, that is, the UE is in the coverage area of the cell CELL1, but the CELL2 signal in the coverage area of the CELL1 is relatively strong, so that the UE resides in the CELL2, and the RSRP setting in the CELL2 is determined to be lowered. The transmit power of a large RRU makes it possible to eliminate the coverage of the handover.
在存在导频污染的场景下，通过获得的各个多 RRU合并小区中各个 RRU 的 RSRP , 针对 RRU级别进行至少一个 RRU的下行功率的设置， 使得其中一 个小区为主导频， 使 UE可以稳定驻留在此小区， 从而消除导频污染。  In the scenario where there is pilot pollution, the downlink power of at least one RRU is set for the RRU level by using the obtained RSRP of each RRU in the multiple RRU merged cells, so that one of the cells is a dominant frequency, so that the UE can stably reside. In this cell, pilot pollution is eliminated.
进一步的， 当基站为所述多 RRU合并小区及其邻小区中的各个 RRU配 置不同时频位置的 CS I-RS时， 所述处理器 701还用于， 根据获取的所述多 RRU合并小区及其邻小区中的各个 RRU的 RSRP , 将所述多 RRU合并小区调 整为新多 RRU合并小区， 所述新多 RRU合并小区包括所述多 RRU合并小区 中的部分或者全部 RRU,并且包括所述多 RRU合并小区的邻小区中部分或者 全部 RRU。  Further, when the base station configures a CS I-RS of a different time-frequency location for each RRU in the multiple RRU merged cell and its neighboring cell, the processor 701 is further configured to: according to the acquired multiple RRU merged cell And the RSRP of each RRU in the neighboring cell, the multi-RRU merged cell is adjusted to a new multi-RRU merged cell, where the new multi-RRU merged cell includes some or all of the RRUs in the multi-RRU merged cell, and includes A part or all of the RRUs in the neighboring cells of the multiple RRU merged cells.
本发明实施例提供一种基站， 通过处理器为多 RRU合并小区或者所述 多 RRU合并小区及其邻小区中的各个 RRU配置不同时频位置的 CS I-RS; 发 射器将各个所述 CS I-RS发送给 UE ,以便所述 UE根据各个所述 CS I-RS的时 频位置测量 RSRP; 接收器接收所述 UE上 ^艮的各个所述 CS I-RS以及与各个 所述 CS I-RS对应的 RSRP ,并由处理器获取所述多 RRU合并小区或者所述多 RRU合并小区及其邻小区中的各个 RRU的 RSRP。 本发明实施例提供的方案 可以通过为多 RRU合并小区或者所述多 RRU合并小区及其邻小区中的各个 RRU配置不同的 CS I-RS , 使得终端才艮据可以 CS I-RS的时频位置测量 RSRP , 从而获取各个 RRU的参考信号接收功率。 An embodiment of the present invention provides a base station, where a processor is a multiple RRU merged cell or the Each RRU in the multiple RRU merged cell and its neighboring cells configures CS I-RSs of different time-frequency locations; the transmitter sends each of the CS I-RSs to the UE, so that the UE according to each of the CS I-RSs The time-frequency location measures the RSRP; the receiver receives each of the CS I-RSs on the UE and the RSRP corresponding to each of the CS I-RSs, and the processor acquires the multiple RRU merged cells or the RSRP of each RRU in a multi-RRU merged cell and its neighboring cells. The solution provided by the embodiment of the present invention may configure different CS I-RSs for each RRU in the multiple RRU merged cell or the multiple RRU merged cell and its neighboring cells, so that the terminal can calculate the time frequency of the CS I-RS. The position measures RSRP to obtain the reference signal received power of each RRU.
需说明的是， 以上所描述的装置实施例仅仅是示意性的， 其中所述作 示的部件可以是或者也可以不是物理单元， 即可以位于一个地方， 或者也 可以分布到多个网络单元上。 可以根据实际的需要选择其中的部分或者全 部模块来实现本实施例方案的目的。 本领域普通技术人员在不付出创造性 劳动的情况下， 即可以理解并实施。  It should be noted that the device embodiments described above are merely illustrative, and the illustrated components may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. . Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the embodiment. Those of ordinary skill in the art can understand and implement without undue creative work.
通过以上的实施方式的描述， 所属领域的技术人员可以清楚地了解到 本发明可借助软件加必需的通用硬件的方式来实现， 当然也可以通过专用 硬件包括专用集成电路、 专用 CPU、 专用存储器、 专用元器件等来实现， 但 很多情况下前者是更佳的实施方式。 基于这样的理解， 本发明的技术方案 本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出 来，该计算机软件产品存储在可读取的存储介质中，如计算机的软盘， U盘、 移动硬盘、 只读存储器（ROM, Read-Only Memory ), 随机存取存储器（RAM, Random Acces s Memory )、 磁碟或者光盘等， 包括若干指令用以使得一台计 算机设备（可以是个人计算机， 服务器， 或者网络设备等）执行本发明各 个实施例所述的方法。  Through the description of the above embodiments, those skilled in the art can clearly understand that the present invention can be implemented by means of software plus necessary general hardware, and of course, dedicated hardware, dedicated CPU, dedicated memory, dedicated memory, Special components are used to achieve this, but in many cases the former is a better implementation. Based on such understanding, the technical solution of the present invention, which is essential or contributes to the prior art, may be embodied in the form of a software product stored in a readable storage medium, such as a floppy disk of a computer. , U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Acces s Memory), disk or optical disk, etc., including a number of instructions to make a computer device (can It is a personal computer, a server, or a network device, etc.) that performs the methods described in various embodiments of the present invention.
本说明书中的各个实施例均釆用递进的方式描述， 各个实施例之间相 同相似的部分互相参见即可， 每个实施例重点说明的都是与其他实施例的 不同之处。 尤其， 对于装置和***实施例而言， 由于其基本相似于方法实 施例， 所以描述得比较简单， 相关之处参见方法实施例的部分说明即可。 以上所述， 仅为本发明的具体实施方式， 但本发明的保护范围并不局 限于此， 任何熟悉本技术领域的技术人员在本发明揭露的技术范围内， 可 轻易想到变化或替换， 都应涵盖在本发明的保护范围之内。 因此， 本发明 的保护范围应所述以权利要求的保护范围为准。 The various embodiments in the present specification are described in a progressive manner, and the same or similar parts between the various embodiments may be referred to each other, and each embodiment focuses on differences from other embodiments. In particular, for device and system embodiments, since it is substantially similar to the method The embodiment, so the description is relatively simple, and the relevant parts can be referred to the description of the method embodiment. The above is only the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention. It should be covered by the scope of the present invention. Therefore, the scope of the invention should be determined by the scope of the claims.

Claims

权利要求 Rights request
1、 一种参考信号接收功率的测量方法， 其特征在于， 包括： 1. A method for measuring the received power of a reference signal, which is characterized by including:
基站为多射频拉远单元 RRU合并小区或者所述多 RRU合并小区及其邻 小区中的各个 RRU配置不同时频位置的信道状态信息参考信号 CS I-RS; 所述基站将各个所述 CS I-RS发送给用户设备 UE , 以便所述 UE根据各 个所述 CS I-RS的时频位置测量参考信号接收功率 RSRP; The base station configures the channel state information reference signal CSI-RS at different time and frequency positions for the multiple radio frequency remote unit RRU merged cell or each RRU in the multiple RRU merged cell and its adjacent cells; the base station configures each of the CSI -RS is sent to the user equipment UE, so that the UE measures the reference signal received power RSRP according to the time-frequency position of each CSI-RS;
所述基站接收所述 UE上 ^艮的各个所述 CS I-RS以及与各个所述 CS I-RS 对应的 RSRP , 并获取所述多 RRU合并小区或者所述多 RRU合并小区及其邻 小区中的各个 RRU的 RSRP。 The base station receives each of the CSI-RSs on the UE and the RSRP corresponding to each of the CSI-RSs, and obtains the multi-RRU merged cell or the multi-RRU merged cell and its neighboring cells. RSRP of each RRU in .
2、 根据权利要求 1所述的方法， 其特征在于， 所述基站获取多 RRU合 并小区或者所述多 RRU合并小区及其邻小区中的各个 RRU的 RSRP包括： 所述基站根据为多 RRU合并小区中各个 RRU配置的不同的 CS I-RS , 以 及各个所述 CS I-RS对应的 RSRP ,获取多 RRU合并小区或者所述多 RRU合并 小区及其邻小区中的各个 RRU的 RSRP。 2. The method according to claim 1, characterized in that, the base station obtaining the RSRP of each RRU in the multi-RRU merged cell or the multi-RRU merged cell and its neighboring cells includes: the base station based on multi-RRU merged Different CSI-RSs configured for each RRU in the cell, and the RSRP corresponding to each of the CSI-RSs, are used to obtain the RSRP of each RRU in the multi-RRU merged cell or the multi-RRU merged cell and its neighboring cells.
3、根据权利要求 1所述的方法，其特征在于，所述基站获取所述多 RRU 合并小区中的各个 RRU的 RSRP之后， 还包括： 3. The method according to claim 1, characterized in that after the base station obtains the RSRP of each RRU in the multi-RRU merged cell, it further includes:
根据获取的多 RRU合并小区中的各个 RRU的所述 RSRP , 所述基站调整 所述多 RRU合并小区中至少一个 RRU的下行发射功率。 According to the obtained RSRP of each RRU in the multi-RRU combined cell, the base station adjusts the downlink transmit power of at least one RRU in the multi-RRU combined cell.
4、根据权利要求 3所述的方法，其特征在于，所述基站调整所述多 RRU 合并小区中至少一个 RRU的下行发射功率包括： 4. The method according to claim 3, wherein the base station adjusting the downlink transmit power of at least one RRU in the multi-RRU merged cell includes:
所述基站设置所述多 RRU合并小区中至少一个 RRU的输出功率调整值， 以使得所述至少一个 RRU釆用调整之后的下行功率进行发射； 或者， The base station sets the output power adjustment value of at least one RRU in the multi-RRU merged cell, so that the at least one RRU uses the adjusted downlink power to transmit; or,
所述基站设置所述多 RRU合并小区中至少一个 RRU的下行功率配置值， 以使得所述至少一个 RRU釆用配置的下行功率进行发射。 The base station sets the downlink power configuration value of at least one RRU in the multi-RRU combined cell, so that the at least one RRU uses the configured downlink power to transmit.
5、 根据权利要求 1所述的方法， 其特征在于， 基站获取所述多 RRU合 并小区及其邻小区中的各个 RRU的 RSRP之后， 还包括： 根据获取的所述多 RRU合并小区及其邻小区中的各个 RRU的 RSRP , 所 述基站将所述多 RRU合并小区调整为新多 RRU合并小区， 所述新多 RRU合 并小区包括所述多 RRU合并小区中的部分或者全部 RRU , 并且包括所述多 RRU合并小区的邻小区中部分或者全部 RRU。 5. The method according to claim 1, characterized in that, after the base station obtains the RSRP of each RRU in the multi-RRU merged cell and its neighboring cells, it further includes: According to the obtained RSRP of each RRU in the multi-RRU merged cell and its neighboring cells, the base station adjusts the multi-RRU merged cell to a new multi-RRU merged cell, and the new multi-RRU merged cell includes the multiple RRUs. Part or all of the RRUs in the cell are merged, and part or all of the RRUs in neighboring cells of the multi-RRU merged cell are included.
6、 一种参考信号接收功率的测量装置， 其特征在于， 包括： 6. A measuring device for reference signal received power, characterized by including:
配置单元， 用于为多 RRU合并小区或者所述多 RRU合并小区及其邻小 区中的各个 RRU配置不同时频位置的 CS I-RS; A configuration unit configured to configure CSI-RS at different time-frequency locations for each RRU in the multi-RRU combined cell or the multi-RRU combined cell and its neighboring cells;
发送单元， 用于将各个所述 CS I-RS发送给 UE , 以便所述 UE根据各个 所述 CS I-RS的时频位置测量 RSRP; A sending unit, configured to send each of the CSI-RS to the UE, so that the UE measures the RSRP according to the time-frequency position of each of the CSI-RS;
获取单元， 用于接收所述 UE上 ^艮的各个所述 CS I-RS 以及与各个所述 CS I-RS对应的 RSRP , 并获取所述多 RRU合并小区或者所述多 RRU合并小区 及其邻小区中的各个 RRU的 RSRP。 An acquisition unit configured to receive each of the CSI-RSs on the UE and the RSRP corresponding to each of the CSI-RSs, and acquire the multi-RRU merged cell or the multi-RRU merged cell and its RSRP of each RRU in neighboring cells.
7、 根据权利要求 6所述的装置， 其特征在于， 所述获取单元用于： 根据为多 RRU合并小区中各个 RRU配置的不同的 CS I-RS , 以及各个所 述 CS I-RS对应的 RSRP ,获取多 RRU合并小区或者所述多 RRU合并小区及其 邻小区中的各个 RRU的 RSRP。 7. The apparatus according to claim 6, wherein the obtaining unit is configured to: according to different CSI-RS configured for each RRU in the multi-RRU merged cell, and the corresponding CSI-RS of each of the CSI-RSs. RSRP: Obtain the RSRP of each RRU in a multi-RRU merged cell or the multi-RRU merged cell and its neighboring cells.
8、 根据权利要求 6所述的装置， 其特征在于， 所述装置还包括： 第一处理单元， 用于根据获取的多 RRU合并小区中的各个 RRU的所述 RSRP , 调整所述多 RRU合并小区中至少一个 RRU的下行发射功率。 8. The device according to claim 6, characterized in that the device further includes: a first processing unit, configured to adjust the multi-RRU merging according to the obtained RSRP of each RRU in the multi-RRU merging cell. Downlink transmit power of at least one RRU in the cell.
9、根据权利要求 8所述的装置， 其特征在于， 所述第一处理单元包括： 第一设置模块， 用于设置所述多 RRU合并小区中至少一个 RRU的输出 功率调整值， 以使得所述至少一个 RRU釆用调整之后的下行功率进行发射； 或者， 9. The device according to claim 8, characterized in that the first processing unit includes: a first setting module, configured to set the output power adjustment value of at least one RRU in the multi-RRU merged cell, so that the The at least one RRU uses the adjusted downlink power to transmit; or,
第二设置模块， 用于设置所述多 RRU合并小区中至少一个 RRU的下行 功率配置值， 以使得所述至少一个 RRU釆用配置的下行功率进行发射。 The second setting module is configured to set the downlink power configuration value of at least one RRU in the multi-RRU combined cell, so that the at least one RRU uses the configured downlink power to transmit.
10、 根据权利要求 6所述的装置， 其特征在于， 所述装置还包括： 第二处理单元， 用于根据获取的所述多 RRU合并小区及其邻小区中的 各个 RRU的 RSRP, 将所述多 RRU合并小区调整为新多 RRU合并小区， 所述 新多 RRU合并小区包括所述多 RRU合并小区中的部分或者全部 RRU，并且包 括所述多 RRU合并小区的邻小区中部分或者全部 RRU。 10. The device according to claim 6, characterized in that the device further includes: a second processing unit configured to merge the multiple RRUs in the cell and its neighboring cells according to the obtained RSRP of each RRU, adjust the multi-RRU merged cell to a new multi-RRU merged cell, the new multi-RRU merged cell includes some or all RRUs in the multi-RRU merged cell, and includes the multi-RRU merged cell Some or all RRUs in neighboring cells.
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