WO2014008735A1 - 一种多射频拉远单元共小区协作多点传输的方法及装置 - Google Patents

一种多射频拉远单元共小区协作多点传输的方法及装置 Download PDF

Info

Publication number
WO2014008735A1
WO2014008735A1 PCT/CN2012/085610 CN2012085610W WO2014008735A1 WO 2014008735 A1 WO2014008735 A1 WO 2014008735A1 CN 2012085610 W CN2012085610 W CN 2012085610W WO 2014008735 A1 WO2014008735 A1 WO 2014008735A1
Authority
WO
WIPO (PCT)
Prior art keywords
rru
comp
cooperative
target
data
Prior art date
Application number
PCT/CN2012/085610
Other languages
English (en)
French (fr)
Inventor
董伟
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Publication of WO2014008735A1 publication Critical patent/WO2014008735A1/zh

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic management; Network resource management
    • H04W28/16Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/022Site diversity; Macro-diversity
    • H04B7/024Co-operative use of antennas of several sites, e.g. in co-ordinated multipoint or co-operative multiple-input multiple-output [MIMO] systems
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W88/00Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08Access point devices
    • H04W88/085Access point devices with remote components

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a method and apparatus for multi-radio remote unit co-cell coordinated multi-point transmission. Background technique
  • the radio remote unit (RRU) common cell combines multiple RRU coverage cells into the same cell, so that the handover area between the multiple cells becomes the same cell relay point, and the handover is reduced.
  • the coverage distance of the single station is increased, the probability of cell reselection and cell handover of the user equipment (User Equipment, UE) in the network is reduced, the success rate of the terminal user is improved, the probability of dropped calls is reduced, and the user experience and network quality are effectively improved.
  • the RRUs that receive the UE information measure the uplink signal to interference and noise ratio of the UE (S ignab to-Interference plus noisy Se Ra io, S INR).
  • S ignab to-Interference plus noisy Se Ra io, S INR The RRU with the largest S INR is selected to serve the UE, and the information sent by the UE is received and demodulated.
  • Embodiments of the present invention provide a method and apparatus for multi-radio remote unit co-cell coordinated multi-point transmission, which can improve uplink demodulation performance and reduce user drop rate.
  • an embodiment of the present invention provides a method for multi-radio remote unit co-cell coordinated multi-point transmission, including: Determining a target RRU of the user equipment according to the at least two radio remote unit RRUs of the same base station; determining a cooperative RRU of the user equipment according to the target RRU and an RRU other than the target RRU;
  • Coordinated multi-point transmission CoMP equalization processing is performed on the received user data by the target RRU and the cooperative RRU to obtain demodulated data of the user equipment.
  • determining the target RRU of the user equipment according to the at least two RRUs of the same base station includes: acquiring an uplink signal to interference and noise ratio S INR measured by at least two RRUs of the same base station; determining the uplink SINR The RRU corresponding to the largest uplink SINR is the target RRU of the user equipment.
  • the determining, according to the target RRU and the RRUs other than the target RRU, the cooperative RRU of the user equipment includes: receiving, according to the target RRU, an uplink reference signal received power RSRP And an uplink RSRP measured by the RRU other than the target RRU, determining a cooperative RRU of the user equipment; or, an uplink SINR measured according to the target RRU and an uplink SINR measured by an RRU other than the target RRU, A collaborative RRU of the user equipment is determined.
  • an embodiment of the present invention provides a multi-radio remote unit co-cell coordinated multi-point transmission apparatus, including:
  • a processor configured to determine a target RRU of the user equipment according to the at least two radio remote unit RRUs; and determine a cooperative RRU of the user equipment according to the target RRU and an RRU other than the target RRU;
  • the target RRU is configured to perform cooperative multi-point transmission CoMP equalization processing on the received user data in cooperation with the cooperative RRU.
  • the processor is configured to: acquire an uplink signal to interference and noise ratio SINR measured by at least two RRUs; and determine that the RRU corresponding to the largest uplink S INR of the uplink SINR is a target RRU of the user equipment. .
  • the processor includes: a first determining module, configured to determine, according to an uplink RSRP measured by the target RRU and an uplink RSRP measured by an RRU other than the target RRU, a cooperative RRU of the device, or a second determining module, configured to determine, according to an uplink SINR measured by the target RRU and an uplink S INR measured by an RRU other than the target RRU A collaborative RRU for the user device.
  • An embodiment of the present invention provides a method and a device for co-cell coordinated multi-point transmission of a multi-radio remote unit, which determines a target RRU of a user equipment according to at least two radio remote units RRU of the same base station; Determining a cooperative RRU of the user equipment by the RRU other than the target RRU; performing cooperative multi-point transmission CoMP equalization processing on the received user data by the target RRU and the cooperative RRU, to obtain the user equipment Demodulate data.
  • the signal in the edge overlap region covered by the plurality of RRUs is relatively poor, resulting in poor uplink demodulation performance, and the user drop rate is higher.
  • This embodiment passes the target RRU. Combined with the cooperative RRU, it can improve the uplink demodulation performance and reduce the user drop rate.
  • FIG. 1 is a flowchart of a method for multi-radio remote unit co-cell coordinated multi-point transmission according to Embodiment 1 of the present invention
  • FIG. 2 is a block diagram of an apparatus for multi-radio remote unit co-cell coordinated multi-point transmission according to Embodiment 1 of the present invention
  • FIG. 3 is a flowchart of a method for determining a cooperative RRU according to Embodiment 2 of the present invention
  • FIG. 4 is a flowchart of another method for determining a cooperative RRU according to Embodiment 2 of the present invention
  • 2 provides a schematic diagram of performing CoMP equalization processing on the received user data by the target RRU and the cooperative RRU;
  • FIG. 6 is another schematic diagram of performing CoMP equalization processing on the received user data by the target RRU and the cooperative RRU according to Embodiment 2 of the present invention
  • Figure ⁇ is another schematic diagram of the target RRU and the cooperative RRU providing CoMP equalization processing on the received user data according to Embodiment 2 of the present invention
  • FIG. 8 is a multi-radio remote unit co-cell coordinated multi-point transmission according to Embodiment 2 of the present invention. A block diagram of the device. detailed description
  • the embodiment of the present invention provides a method for co-cell coordinated multi-point transmission of a multi-radio remote unit, where the main body of the method is a base station, as shown in FIG. 1, the method includes the following steps:
  • Step 101 Determine, according to at least two radio remote unit RRUs of the same base station, a target RRU of the user equipment;
  • At least two RRUs are configured as the same logical cell, that is, at least two RRUs belong to the same base station, and at least the target RRU and the coordinated RRU are included.
  • the uplink signal to interference and noise ratio S INR measured by the RRU of the at least two radio remote unit of the same base station is obtained; and the RRU corresponding to the largest uplink S INR of the uplink S INR is determined to be the target RRU of the user equipment.
  • Step 102 Determine a cooperative RRU of the user equipment according to the target RRU and an RRU other than the target RRU.
  • the determining, according to the absolute value of the difference, the cooperative RRU of the user equipment includes the following methods:
  • an absolute value of the at least two of the difference values is less than or equal to a preset CoMP (Coordina ted Mul t i-Po int ransmi ss ion coordinated multipoint transmission) threshold, and at least two of the difference values
  • CoMP Coordina ted Mul t i-Po int ransmi ss ion coordinated multipoint transmission
  • the RRUs corresponding to the absolute values of the at least two of the difference values are RRUs of different antenna numbers, according to at least two of the difference values
  • the uplink S INR measured by the RRU corresponding to the absolute value determining that the RRU corresponding to the maximum uplink SINR is the cooperative RRU of the user equipment
  • the user equipment When all the absolute values of the difference are greater than a preset CoMP threshold, the user equipment is a non-CoMP user, and the processing flow is exited.
  • determining a cooperative RRU of the user equipment according to an uplink SINR of the target RRU and an uplink SINR measured by the RRU other than the target RRU.
  • Step 103 Coordinate multi-point transmission CoMP equalization processing on the received user data by the target RRU and the cooperative RRU to obtain demodulated data of the user equipment.
  • the cooperative RRU in the base station performs discrete Fourier transform DFT processing on the received user data, and the obtained first CoMP Data is sent to the target RRU in the base station;
  • the target RRU performs DFT processing on the received user data, obtains second CoMP data, and performs interference suppression combining processing on the first CoMP data and the second CoMP data.
  • the cooperative RRU in the base station performs DFT processing on the user data received by the preset number of antennas, and the third CoMP to be obtained is obtained.
  • Data is sent to the target RRU in the base station; the target RRU performs DFT processing on the received user data, obtains second CoMP data, and the third CoMP number Interference suppression combining processing according to the second CoMP data; or
  • the target RRU in the base station performs DFT processing on the received user data, and sends the obtained second CoMP data to the cooperative RRU in the base station; the cooperative RRU receives the preset number of antennas. Performing DFT processing on the user data, obtaining third CoMP data, and performing interference suppression combining processing on the third CoMP data and the second CoMP data; or
  • the cooperative RRU in the base station sequentially performs DFT processing, interference suppression combining processing, and discrete inverse Fourier transform IDFT on the received user data.
  • the embodiment of the invention provides a method for co-cell coordinated multi-point transmission of a multi-radio remote unit, which determines a target RRU and a cooperative RRU, and then the target RRU and the cooperative RRU jointly perform cooperative multi-point transmission CoMP equalization on the received user data. Processing can improve the uplink demodulation performance and reduce the user drop rate.
  • the embodiment of the present invention provides a device for co-cell coordinated multi-point transmission of a multi-radio remote unit, and the device may be a base station.
  • the device includes: a processor 201, a target RRU 202, and a cooperative RRU 203;
  • the processor 201 is configured to determine a target RRU of the user equipment according to the at least two radio remote unit RRUs, and determine a cooperative RRU of the user equipment according to the target RRU and an RRU other than the target RRU;
  • At least two RRUs are configured as the same logical cell, that is, at least two RRUs belong to the same base station, and at least the target RRU and the coordinated RRU are included.
  • the processor 201 is configured to: obtain an uplink signal to interference and noise ratio uplink S INR measured by at least two RRUs; and determine that the RRU corresponding to the largest uplink S INR of the uplink S INR is a target RRU of the user equipment. .
  • the first determining module in the processor 201 is configured to detect according to the target RRU The uplink RSRP of the quantity and the uplink RSRP of the RRU measurement except the target RRU, the coordinated RRU of the user equipment is determined; or the second determining module of the processor 201 is configured to measure according to the target RRU The uplink SINR and the uplink SINR measured by the RRU other than the target RRU determine the cooperative RRU of the user equipment.
  • the calculation submodule in the first determining module is configured to separately calculate an absolute value of a difference between an uplink RSRP measured by the target RRU and an uplink RSRP measured by each RRU except the target RRU; Determining a sub-module in the first determining module, configured to determine a cooperative RRU of the user equipment according to an absolute value of the difference value.
  • determining submodule is used to:
  • the RRU corresponding to the absolute value of the smallest difference among the absolute values is a cooperative RRU of the user equipment; and when the absolute values of the at least two of the differences are less than or equal to a preset CoMP threshold, and at least two of the differences
  • the RRU corresponding to the absolute value is an RRU of a different number of antennas, determining, according to the uplink SINR measured by the RRU corresponding to the absolute value of the at least two differences, the RRU corresponding to the maximum uplink SINR is the cooperative RRU of the user equipment;
  • the user equipment is a non-CoMP user, and the processing flow is exited.
  • the calculation submodule in the second determining module is configured to separately calculate a difference between an uplink SINR measured by the target RRU and an uplink SINR measured by an RRU other than the target RRU; the second determining a determining submodule in the module, configured to determine, according to the uplink S INR measured by the RRU corresponding to the difference, an RRU corresponding to the maximum uplink SINR, when the difference is less than or equal to a preset uplink SINR difference threshold A collaborative RRU for the user device.
  • the target RRU 202 is configured to perform cooperative multi-point transmission CoMP equalization processing on the received user data in cooperation with the cooperative RRU 203. Further, when the target RRU 202 and the cooperative RRU 203 are RRUs of the same number of antennas, the cooperative RRU 203 is configured to perform discrete Fourier transform DFT processing on the received user data, and obtain the first CoMP data. Send to the target RRU 202;
  • the target RRU 202 is configured to perform DFT processing on the received user data, obtain second CoMP data, and perform interference suppression combining processing on the first CoMP data and the second CoMP data.
  • the cooperative RRU 203 is configured to perform DFT processing on user data received by a preset number of antennas, and obtain third CoMP data.
  • the target RRU 202 is configured to perform DFT processing on the received user data, obtain second CoMP data, and perform interference suppression combining processing on the third CoMP data and the second CoMP data.
  • the target RRU 202 is configured to perform DFT processing on the received user data, and send the obtained second CoMP data to the cooperative RRU 203.
  • the cooperative RRU 203 is configured to receive user data of a preset number of antennas. Performing DFT processing, obtaining third CoMP data, and performing interference suppression combining processing on the third CoMP data and the second CoMP data; or
  • the cooperative RRU 203 is configured to sequentially perform DFT processing, interference suppression combining processing, and discrete Fourier transform IDFT on the received user data, obtain fifth CoMP data, and send the fifth CoMP data to the a target RRU 202, configured to sequentially perform DFT processing, interference suppression combining processing, and IDFT on the received user data, and obtain sixth CoMP data; and the fifth CoMP data and the sixth CoMP data. Perform maximum ratio combining processing.
  • target RRU 202 and the cooperative RRU 203 may exist independently as two devices, but the target RRU 202 and the cooperative RRU 203 belong to one base station.
  • An embodiment of the present invention provides a device for co-cell coordinated multi-point transmission of a multi-radio remote unit, where the processor is configured to determine a target RRU of the user equipment according to at least two radio remote units RRU of the same base station; a target RRU and an RRU other than the target RRU, determining a coordinated RRU of the user equipment; the target RRU, configured to perform cooperative multi-point transmission CoMP equalization processing on the received user data jointly with the cooperative RRU, It can improve the uplink demodulation performance and reduce the user drop rate.
  • the processor is configured to determine a target RRU of the user equipment according to at least two radio remote units RRU of the same base station; a target RRU and an RRU other than the target RRU, determining a coordinated RRU of the user equipment; the target RRU, configured to perform cooperative multi-point transmission CoMP equalization processing on the received user data jointly with the cooperative RRU, It can improve the uplink demodulation performance and reduce the user drop rate.
  • the embodiment of the present invention provides a method for co-cell coordinated multi-point transmission of a multi-radio remote unit, and the execution subject of the method is a base station.
  • the method includes:
  • Step 101 Determine, according to at least two radio remote unit RRUs of the same base station, a target RRU of the user equipment;
  • At least two RRUs are configured as the same logical cell, that is, at least two RRUs belong to the same base station, and at least the target RRU and the coordinated RRU are included.
  • the uplink SINR measured by the RRU of the same base station is obtained.
  • the RRU corresponding to the largest uplink SINR of the uplink SINR is determined to be the target RRU of the user equipment.
  • Step 102 The base station determines, according to the target RRU and an RRU other than the target RRU, a cooperative RRU of the user equipment.
  • This step can determine the collaborative RRU in the following two ways:
  • Manner 1 The coordinated RRU of the user equipment is determined according to the uplink reference signal received power (RSRP) measured by the target RRU and the uplink RSRP measured by the RRU other than the target RRU. As shown in Figure 3, the following steps are included:
  • RSRP uplink reference signal received power
  • Step 301 Obtain an uplink RSRP measured by the target RRU, and record it as RSRP ( 0 );
  • Step 304 determining whether D [i] is greater than a preset CoMP threshold
  • the preset CoMP threshold can be 6dB or 10dB.
  • Step 305 When D [i] is greater than a preset CoMP threshold, the user equipment is a non-CoMP user, and the processing flow is exited; Step 306, when D[i] is less than or equal to the preset CoMP threshold, determine whether the RRU corresponding to D[i] is an RRU of the same number of antennas;
  • the RRUs that meet the preset CoMP threshold are at least two, it is necessary to further determine whether the RRU corresponding to D[i] is the same number of RRUs; when the RRU that meets the preset CoMP threshold is only one Then, directly determine that the one RRU that satisfies the condition is a cooperative RRU.
  • Step 307 when the RRU corresponding to D[i] is the RRU of the same number of antennas, determining that the RRU corresponding to the absolute value of the minimum difference in D[i] is the cooperative RRU of the user equipment;
  • the RRU of the same number of antennas may be an RRU of 2 antennas, or may be an RRU of 8 antennas.
  • the RRUs of different antenna numbers may be an RRU of 2 antennas and an RRU of 8 antennas.
  • Manner 2 an uplink SINR measured according to the target RRU and other than the target RRU
  • the uplink SINR measured by the RRU determines the cooperative RRU of the user equipment; as shown in FIG. 4, the following steps are included:
  • Step 401 Calculate, respectively, a difference between an uplink SINR measured by the target RRU and an uplink SINR measured by an RRU other than the target RRU.
  • Step 402 Determine whether the calculated difference is less than or equal to a preset uplink SINR difference threshold.
  • Step 403 When the difference is less than or equal to the preset uplink SINR difference threshold, determine, according to the uplink SINR measured by the RRU corresponding to the difference, that the RRU corresponding to the maximum uplink SINR is the coordinated RRU of the user equipment.
  • Step 404 When the difference is greater than a preset uplink SINR difference threshold, the user equipment is a non-CoMP user, and the processing flow is exited.
  • Step 103 Perform cooperative multi-point transmission CoMP equalization processing on the received user data according to the target RRU and the cooperative RRU, to obtain demodulated data of the user equipment.
  • the following two equalization schemes can be adopted according to the number of antennas of the target RRU and the cooperative RRU:
  • the cooperative RRU performs user data received by the two antennas.
  • Discrete Fourier transform DFT processing that is, converting time domain data to the frequency domain, obtaining first CoMP data, and transmitting the obtained first CoMP data to the target RRU;
  • the target RRU While the cooperative RRU processes the received user data, the target RRU performs DFT processing on the user data received by the two antennas to obtain second CoMP data, and the target RRU receives the first CoMP data sent by the cooperative RRU, and CoMP said first data and said second data CoMP system combined interference ⁇ 7 (interference Rejection Combining, IRC) process, i.e., the antenna 14 ⁇ RRU IRC joint equalization.
  • IRC interference Rejection Combining
  • the target RRU sequentially performs Inverse Discrete Fourier Transform (IDFT), Quadrature Amplitude Modulation (QAM), deinterleave operation, and hybrid automatic repeat request.
  • IDFT Inverse Discrete Fourier Transform
  • QAM Quadrature Amplitude Modulation
  • HARQ Hybrid Automatic Requestor
  • the target RRU and the cooperative RRU are RRUs of different antenna numbers, for example, the target RRU is a 2-antenna RRU, and the cooperative RRU is an 8-antenna RRU. As shown in FIG. 6, the cooperative RRU will be preset.
  • the user data received by the antenna is subjected to DFT processing, that is, the time domain data is converted into the frequency domain, and optionally, the user data received by the optional 6 antennas of the 8 antenna RRU is subjected to DFT processing to obtain the third CoMP data;
  • the obtained third CoMP data is sent to the target RRU; while the cooperative RRU performs DFT processing on the received user data, the target RRU performs DFT processing on the user data received by the two antennas to obtain the second CoMP data;
  • the target RRU performs DFT processing on the user data received by the two antennas to obtain the second CoMP data; the target RRU sends the obtained second CoMP data to the cooperative RRU; and performs DFT processing on the received user data in the target RRU.
  • the cooperative RRU performs DFT processing on the user data received by the preset number of antennas, and optionally, selects 6 days among the 8 antennas in the RRU.
  • the user data received by the line is subjected to DFT processing to obtain third CoMP data.
  • the cooperative RRU receives the second CoMP data sent by the target RRU, and performs interference suppression combining processing on the third CoMP data and the second CoMP data.
  • the target RRU performs IDFT, QAM, deinterleaving, HARQ merge Comb ine, and turbo decoding Turbo Decode to obtain the demodulation data of the user equipment.
  • the target RRU and the coordinated RRU are RRUs of different antenna numbers, for example, the target RRU is a 2-antenna RRU, and the cooperative RRU is an 8-antenna RRU, and the CoMP equalization process may also be performed by using the method described below.
  • the cooperative RRU sequentially performs DFT processing, interference suppression combining processing, and discrete Fourier transform IDFT on the user data received by the eight antennas to obtain fifth CoMP data, and obtains the fifth CoMP.
  • the data is sent to the target RRU; while the cooperative RRU processes the user data received by the eight antennas, the target RRU sequentially performs DFT processing, interference suppression combining processing, and IDFT on the user data received by the two antennas to obtain the sixth CoMP.
  • the target RRU receives the fifth CoMP data sent by the coordinated RRU, and performs maximum ratio combining (Maxim for Ra io Comb ining, MRC) processing; After the equalization process, the target RRU performs QAM, deinterleaving, HARQ combining, and turbo decoding Turbo Decode. Obtain demodulated data of the user equipment.
  • the method for co-cell coordinated multi-point transmission of the multi-radio remote unit is provided by the embodiment of the present invention, and the uplink demodulation performance of the user in the RRU overlap area is further improved, and the uplink demodulation performance of the user in the RRU overlap area is further improved and reduced.
  • User drop rate is provided by the embodiment of the present invention, and the uplink demodulation performance of the user in the RRU overlap area is further improved, and the uplink demodulation performance of the user in the RRU overlap area is further improved and reduced.
  • the embodiment of the present invention provides a device for multi-radio remote unit co-cell coordinated multi-point transmission, and the device may be a base station.
  • the device includes: a processor 801, a first determining module 8011, and a computing submodule. 80111, determining submodule 801 12, second determining module 8012, calculating submodule 80121, determining submodule 80122, target RRU 802, cooperative RRU 803;
  • the processor 801 is configured to determine a target RRU of the user equipment according to the at least two radio remote unit RRUs, and determine a cooperative RRU of the user equipment according to the target RRU and an RRU other than the target RRU;
  • the at least two radio remote unit RRUs belong to the multi-radio remote unit in the multi-radio remote unit in the embodiment, and belong to one base station.
  • the processor 801 is configured to: acquire an uplink signal to interference (SNR) uplink SINR of the at least two RRUs, and determine that the RRU corresponding to the largest uplink SINR of the uplink SINR is a target RRU of the user equipment.
  • SNR uplink signal to interference
  • the first determining module 8011 in the processor 801 is configured to determine a cooperative RRU of the user equipment according to an uplink RSRP measured by the target RRU and an uplink RSRP measured by an RRU other than the target RRU.
  • the second determining module 8012 in the processor 801 is configured to determine a cooperative RRU of the user equipment according to an uplink SINR measured by the target RRU and an uplink SINR measured by an RRU other than the target RRU.
  • the processor 801 includes at least one of the first determining module 8011 and the second determining module 8012.
  • the calculating submodule 80111 in the first determining module 8011 is configured to separately calculate an absolute value of a difference between an uplink RSRP measured by the target RRU and an uplink RSRP measured by each RRU except the target RRU. ;
  • the determining submodule 80112 in the first determining module 8011 is configured to determine a cooperative RRU of the user equipment according to an absolute value of the difference. Specifically, the determining submodule 80112 is configured to: when the absolute value of the at least two the difference values is less than or equal to a preset CoMP threshold, and the RRUs corresponding to the absolute values of the at least two of the difference values are RRUs of the same number of antennas Determining, by the RRU corresponding to the absolute value of the minimum difference among the absolute values of the at least two of the difference values, a cooperative RRU of the user equipment; and when the absolute value of the at least two of the difference values is less than or equal to the preset CoMP a threshold, and when the RRUs corresponding to the absolute values of the at least two differences are different RRUs, determining the RRU corresponding to the maximum uplink SINR according to the uplink SINR measured by the RRU corresponding to the absolute values of the at least two differences a cooperative RRU of the user equipment
  • the calculating submodule 80121 in the second determining module 8012 is configured to separately calculate a difference between an uplink S INR measured by the target RRU and an uplink S INR measured by an RRU other than the target RRU;
  • the determining submodule 80122 in the second determining module 8012 is configured to determine, according to the uplink S INR measured by the RRU corresponding to the difference, when the difference is less than or equal to the preset uplink S INR difference threshold,
  • the RRU corresponding to the uplink S INR is a cooperative RRU of the user equipment.
  • the target RRU 802 is configured to perform cooperative multi-point transmission CoMP equalization processing on the received user data in cooperation with the cooperative RRU 803.
  • the cooperative RRU 803 is configured to perform discrete Fourier transform DFT processing on the received user data, and obtain the first CoMP data. Sent to the target RRU 802;
  • the target RRU 802 is configured to perform DFT processing on the received user data, obtain second CoMP data, and perform interference suppression combining processing on the first CoMP data and the second CoMP data.
  • the cooperative RRU 803 is configured to perform DFT processing on user data received by a preset number of antennas, and obtain third CoMP data.
  • the target RRU 802 is configured to perform DFT processing on the received user data, obtain second CoMP data, and perform interference suppression combining processing on the third CoMP data and the second CoMP data.
  • the target RRU 802 is configured to perform DFT processing on the received user data, and send the obtained second CoMP data to the cooperative RRU 803.
  • the cooperative RRU 803 is configured to receive user data of a preset number of antennas. Performing DFT processing, obtaining third CoMP data, and performing interference suppression combining processing on the third CoMP data and the second CoMP data; or
  • the cooperative RRU 803 is configured to sequentially perform DFT processing, interference suppression combining processing, and discrete Fourier transform IDFT on the received user data, obtain fifth CoMP data, and send the fifth CoMP data to the
  • the target RRU 802 is configured to perform the DFT processing, the interference suppression combining processing, and the IDFT on the received user data, to obtain the sixth CoMP. Data; and performing maximum ratio combining processing on the fifth CoMP data and the sixth CoMP data. It should be noted that the target RRU 802 and the cooperative RRU 803 may exist independently as two devices, but the target RRU 802 and the cooperative RRU 803 belong to one base station.
  • An embodiment of the present invention provides a device for co-cell coordinated multi-point transmission of a multi-radio remote unit, where the processor is configured to determine a target RRU of the user equipment according to at least two radio remote units RRU of the same base station; a target RRU and an RRU other than the target RRU, determining a coordinated RRU of the user equipment; the target RRU, configured to perform cooperative multi-point transmission CoMP equalization processing on the received user data jointly with the cooperative RRU, It can improve the uplink demodulation performance and reduce the user drop rate.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

本发明公开一种多射频拉远单元共小区协作多点传输的方法及装置,涉及通信网络技术领域,可以提高上行解调性能,并且降低用户掉线率。本发明实施例通过根据同一基站的至少两个射频拉远单元(RRU)确定用户设备的目标RRU(101);根据所述目标RRU以及除所述目标RRU之外的RRU,确定所述用户设备的协作RRU(102);由所述目标RRU和所述协作RRU对接收到的用户数据进行协作多点传输(CoMP)均衡处理,以获得所述用户设备的解调数据(103)。本发明实施例提供的方案适于进行多射频拉远单元共小区上行协作多点传输时采用。

Description

一种多射频拉远单元共小区协作多点传输的方法及装置 本申请要求于 2012 年 07 月 10 日提交中国专利局、 申请号为 20121 0237441. 4、 发明名称为 "一种多射频拉远单元共小区协作多点传 输的方法及装置" 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
本发明涉及通信技术领域, 尤其涉及一种多射频拉远单元共小区协作多 点传输的方法及装置。 背景技术
目前, 多射频拉远单元(Radio Remote Uni t , RRU )共小区为将多个 RRU 覆盖小区合并为同一小区, 这样原来多个小区之间的切换区域变成同小区接 力点, 减少了切换, 扩大了单站覆盖距离, 降低网络中用户设备 (User Equipment , UE ) 的小区重选、 小区切换的概率, 提升终端用户呼叫成功率, 降低掉话概率, 有效提升用户体验和网络质量。
现有技术中在采用多 RRU共小区方式上行接收 UE发送的信息时, 所有接 收此 UE信息的 RRU测量 UE的上行信干噪比( S igna卜 to-Interference plus Noi se Ra t io, S INR ), 选择其中 S INR最大的 RRU为 UE服务, 接收 UE发送的 信息并进行解调。
然而, 当采用现有技术接收 UE信息并解调时, 由于多个 RRU覆盖的边缘 重叠区域距离基站比较远, 信号比较差, 导致上行解调性能较差, 以及用户 掉线率较高。 发明内容
本发明的实施例提供一种多射频拉远单元共小区协作多点传输的方法及 装置, 可以提高上行解调性能, 并且降低用户掉线率。
一方面, 本发明的实施例提供一种多射频拉远单元共小区协作多点传输 的方法, 包括: 根据同一基站的至少两个射频拉远单元 RRU确定用户设备的目标 RRU; 根据所述目标 RRU以及除所述目标 RRU之外的 RRU,确定所述用户设备的 协作 RRU;
由所述目标 RRU和所述协作 RRU对接收到的用户数据进行协作多点传输 CoMP均衡处理, 以获得所述用户设备的解调数据。
在本发明另一实施例中, 所述根据同一基站的至少两个 RRU确定用户设 备的目标 RRU包括:获取同一基站的至少两个 RRU测量的上行信干噪比 S INR; 确定所述上行 SINR中最大的上行 SINR对应的 RRU为用户设备的目标 RRU。
在本发明另一实施例中, 所述根据所述目标 RRU 以及除所述目标 RRU之 外的 RRU, 确定所述用户设备的协作 RRU包括: 根据所述目标 RRU测量的上行 参考信号接收功率 RSRP以及除所述目标 RRU之外的 RRU测量的上行 RSRP,确 定所述用户设备的协作 RRU; 或者, 根据所述目标 RRU测量的上行 SINR以及 除所述目标 RRU之外的 RRU测量的上行 SINR, 确定所述用户设备的协作 RRU。
另一方面, 本发明的实施例提供一种多射频拉远单元共小区协作多点传 输的装置, 包括:
处理器, 用于根据至少两个射频拉远单元 RRU确定用户设备的目标 RRU; 以及根据所述目标 RRU以及除所述目标 RRU之外的 RRU,确定所述用户设备的 协作 RRU;
所述目标 RRU,用于与所述协作 RRU联合对接收到的用户数据进行协作多 点传输 CoMP均衡处理。
在本发明另一实施例中, 所述处理器用于: 获取至少两个 RRU测量的上 行信干噪比 SINR; 以及确定所述上行 SINR中最大的上行 S INR对应的 RRU为 用户设备的目标 RRU。
在本发明另一实施例中, 所述处理器包括: 第一确定模块, 用于根据所 述目标 RRU测量的上行 RSRP以及除所述目标 RRU之外的 RRU测量的上行 RSRP , 确定所述用户设备的协作 RRU; 或者, 第二确定模块, 用于根据所述目标 RRU 测量的上行 SINR以及除所述目标 RRU之外的 RRU测量的上行 S INR,确定所述 用户设备的协作 RRU。
本发明实施例提供一种多射频拉远单元共小区协作多点传输的方法及装 置,通过根据同一基站的至少两个射频拉远单元 RRU确定用户设备的目标 RRU; 根据所述目标 RRU以及除所述目标 RRU之外的 RRU,确定所述用户设备的协作 RRU; 由所述目标 RRU和所述协作 RRU对接收到的用户数据进行协作多点传输 CoMP均衡处理, 以获得所述用户设备的解调数据。 与现有技术中接收 UE信息 并解调时, 由于多个 RRU覆盖的边缘重叠区域信号比较差, 导致上行解调性 能较差, 以及用户掉线率较高相比, 本实施例通过目标 RRU和协作 RRU联合 处理, 可以提高上行解调性能, 并且降低用户掉线率。 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。
图 1为本发明实施例 1提供的一种多射频拉远单元共小区协作多点传输 的方法的流程图;
图 2为本发明实施例 1提供的一种多射频拉远单元共小区协作多点传输 的装置的框图;
图 3为本发明实施例 2提供的一种确定协作 RRU的方法的流程图; 图 4为本发明实施例 2提供的另一种确定协作 RRU的方法的流程图; 图 5为本发明实施例 2提供的目标 RRU和协作 RRU对接收到的用户数据 进行 CoMP均衡处理的示意图;
图 6为本发明实施例 2提供的目标 RRU和协作 RRU对接收到的用户数据 进行 CoMP均衡处理的另一示意图;
图 Ί为本发明实施例 2提供的目标 RRU和协作 RRU对接收到的用户数据 进行 CoMP均衡处理的另一示意图;
图 8为本发明实施例 2提供的一种多射频拉远单元共小区协作多点传输 的装置的框图。 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。
实施例 1
本发明实施例提供一种多射频拉远单元共小区协作多点传输的方法, 该 方法的执行主体为基站, 如图 1所示, 该方法包括以下步骤:
步骤 101 ,根据同一基站的至少两个射频拉远单元 RRU确定用户设备的目 标 RRU;
需要说明的是, 将至少两个 RRU配置成同一个逻辑小区, 即至少两个 RRU 属于同一个基站, 其中至少包括目标 RRU与协作 RRU。
可选的, 获取同一基站的至少两个射频拉远单元 RRU测量的上行信干噪 比 S INR; 确定所述上行 S INR中最大的上行 S INR对应的 RRU为用户设备的目 标 RRU。
步骤 102 , 根据所述目标 RRU以及除所述目标 RRU之外的 RRU, 确定所述 用户设备的协作 RRU;
可选的, 根据所述目标 RRU测量的上行 RSRP以及除所述目标 RRU之外的 RRU测量的上行 RSRP , 确定所述用户设备的协作 RRU;
具体的, 分别计算所述目标 RRU测量的上行 RSRP与除所述目标 RRU之外 的各个 RRU测量的上行 RSRP的差值的绝对值; 根据所述差值的绝对值确定所 述用户设备的协作 RRU。
其中, 根据所述差值的绝对值确定所述用户设备的协作 RRU 包括以下几 种方式:
当至少两个所述差值的绝对值小于或者等于预设 CoMP ( Coordina ted Mul t i-Po int t ransmi s s ion协作多点传输) 门限, 并且至少两个所述差值的 绝对值对应的 RRU为相同天线数目的 RRU时, 确定至少两个所述差值的绝对 值中最小差值的绝对值对应的 RRU为所述用户设备的协作 RRU;
当至少两个所述差值的绝对值小于或者等于预设 CoMP门限, 并且至少两 个所述差值的绝对值对应的 RRU为不同天线数目的 RRU时, 根据至少两个所 述差值的绝对值对应的 RRU测量的上行 S INR, 确定最大上行 SINR对应的 RRU 为所述用户设备的协作 RRU;
当仅有一个所述差值的绝对值小于或者等于预设 CoMP门限, 则确定所述 差值的绝对值对应的 RRU为所述用户设备的协作 RRU;
当所有的所述差值的绝对值大于预设 CoMP门限时, 则所述用户设备为非 CoMP用户, 退出处理流程。
可选的, 根据所述目标 RRU的上行 SINR以及除所述目标 RRU之外的 RRU 测量的上行 SINR, 确定所述用户设备的协作 RRU。
具体的, 分别计算所述目标 RRU测量的上行 SINR与除所述目标 RRU之外 的 RRU测量的上行 S INR的差值; 当所述差值小于或者等于预设上行 S INR差 值门限时,根据所述差值对应的 RRU测量的上行 SINR, 确定最大上行 SINR对 应的 RRU为所述用户设备的协作 RRU。
步骤 103 ,由所述目标 RRU和所述协作 RRU对接收到的用户数据进行协作 多点传输 CoMP均衡处理, 以获得所述用户设备的解调数据。
可选的, 当所述目标 RRU和所述协作 RRU为相同天线数目的 RRU时, 基 站中的所述协作 RRU将接收到的用户数据进行离散傅里叶变换 DFT处理, 将 获得的第一 CoMP数据发送给所述基站中的所述目标 RRU;
所述目标 RRU将接收到的用户数据进行 DFT处理, 获得第二 CoMP数据, 并将所述第一 CoMP数据和所述第二 CoMP数据进行干扰抑制合并处理。
可选的, 当所述目标 RRU和所述协作 RRU为不同天线数目的 RRU时, 基 站中的所述协作 RRU将预设数目的天线接收到的用户数据进行 DFT处理, 将 获得的第三 CoMP数据发送给所述基站中的所述目标 RRU; 所述目标 RRU将接 收到的用户数据进行 DFT处理, 获得第二 CoMP数据, 并将所述第三 CoMP数 据和所述第二 CoMP数据进行干扰抑制合并处理; 或者,
基站中的所述目标 RRU将接收到的用户数据进行 DFT处理, 将获得的第 二 CoMP数据, 发送给所述基站中的所述协作 RRU; 所述协作 RRU将预设数目 的天线接收到的用户数据进行 DFT处理, 获得第三 CoMP数据, 并将所述第三 CoMP数据和所述第二 CoMP数据进行干扰抑制合并处理; 或者,
当所述目标 RRU和所述协作 RRU为不同天线数目的 RRU时, 基站中的所 述协作 RRU将接收到的用户数据依次进行 DFT处理、 干扰抑制合并处理以及 离散傅里叶逆变换 IDFT后, 获得第五 CoMP数据, 并将所述第五 CoMP数据发 送给所述目标 RRU; 同时基站中的所述目标 RRU将接收到的用户数据依次进行 DFT处理、 干扰抑制合并处理以及 IDFT后, 获得第六 CoMP数据; 所述目标 RRU将所述第五 CoMP数据和所述第六 CoMP数据进行最大比合并处理。
本发明实施例提供一种多射频拉远单元共小区协作多点传输的方法, 通 过分别确定目标 RRU和协作 RRU ,然后目标 RRU和协作 RRU联合对接收到的用 户数据进行协作多点传输 CoMP均衡处理, 可以提高上行解调性能, 并且降低 用户掉线率。
本发明实施例提供一种多射频拉远单元共小区协作多点传输的装置, 该 装置可以为基站, 如图 2所示, 该装置包括: 处理器 201 , 目标 RRU202 , 协 作 RRU203;
处理器 201 , 用于根据至少两个射频拉远单元 RRU确定用户设备的目标 RRU; 以及根据所述目标 RRU以及除所述目标 RRU之外的 RRU, 确定所述用户 设备的协作 RRU;
需要说明的是, 将至少两个 RRU配置成同一个逻辑小区, 即至少两个 RRU 属于同一个基站, 至少包括目标 RRU与协作 RRU。
可选的, 所述处理器 201用于: 获取至少两个 RRU测量的上行信干噪比 上行 S INR; 以及确定所述上行 S INR中最大的上行 S INR对应的 RRU为用户设 备的目标 RRU。
可选的, 所述处理器 201 中的第一确定模块, 用于根据所述目标 RRU测 量的上行 RSRP以及除所述目标 RRU之外的 RRU测量的上行 RSRP ,确定所述用 户设备的协作 RRU; 或者, 所述处理器 201中的第二确定模块, 用于根据所述 目标 RRU测量的上行 SINR以及除所述目标 RRU之外的 RRU测量的上行 SINR, 确定所述用户设备的协作 RRU。
进一步的, 所述第一确定模块中的计算子模块, 用于分别计算所述目标 RRU测量的上行 RSRP与除所述目标 RRU之外的各个 RRU测量的上行 RSRP的差 值的绝对值; 所述第一确定模块中的确定子模块, 用于根据所述差值的绝对 值确定所述用户设备的协作 RRU。
进一步的, 所述确定子模块用于:
当至少两个所述差值的绝对值小于或者等于预设 CoMP门限, 并且至少两 个所述差值的绝对值对应的 RRU为相同天线数目的 RRU时, 确定至少两个所 述差值的绝对值中最小差值的绝对值对应的 RRU为所述用户设备的协作 RRU; 以及当至少两个所述差值的绝对值小于或者等于预设 CoMP门限, 并且至 少两个所述差值的绝对值对应的 RRU为不同天线数目的 RRU时, 根据至少两 个所述差值的绝对值对应的 RRU测量的上行 SINR,确定最大上行 SINR对应的 RRU为所述用户设备的协作 RRU;
以及当仅有一个所述差值的绝对值小于或者等于预设 CoMP门限, 则确定 所述差值的绝对值对应的 RRU为所述用户设备的协作 RRU;
以及当所有的所述差值的绝对值大于预设 CoMP门限时, 则所述用户设备 为非 CoMP用户, 退出处理流程。
进一步的, 所述第二确定模块中的计算子模块, 用于分别计算所述目标 RRU测量的上行 SINR与除所述目标 RRU之外的 RRU测量的上行 SINR的差值; 所述第二确定模块中的确定子模块, 用于当所述差值小于或者等于预设上行 SINR差值门限时, 根据所述差值对应的 RRU测量的上行 S INR, 确定最大上行 SINR对应的 RRU为所述用户设备的协作 RRU。
所述目标 RRU202 ,用于与所述协作 RRU203联合对接收到的用户数据进行 协作多点传输 CoMP均衡处理。 进一步的,当所述目标 RRU202与所述协作 RRU203为相同天线数目的 RRU 时, 所述协作 RRU203 , 用于将接收到的用户数据进行离散傅里叶变换 DFT处 理, 将获得的第一 CoMP数据发送给所述目标 RRU202;
所述目标 RRU202 ,用于将接收到的用户数据进行 DFT处理,获得第二 CoMP 数据, 并将所述第一 CoMP数据和所述第二 CoMP数据进行干扰抑制合并处理。
进一步的, 当所述目标 RRU和所述协作 RRU为不同天线数目的 RRU时, 所述协作 RRU203 , 用于将预设数目的天线接收到的用户数据进行 DFT处 理, 将获得的第三 CoMP数据发送给所述目标 RRU202; 所述目标 RRU202 , 用 于将接收到的用户数据进行 DFT处理,获得第二 CoMP数据,并将所述第三 CoMP 数据和所述第二 CoMP数据进行干扰抑制合并处理; 或者,
所述目标 RRU202 , 用于将接收到的用户数据进行 DFT处理, 将获得的第 二 CoMP数据, 发送给所述协作 RRU203; 所述协作 RRU203 , 用于将预设数目 的天线接收到的用户数据进行 DFT处理, 获得第三 CoMP数据, 并将所述第三 CoMP数据和所述第二 CoMP数据进行干扰抑制合并处理; 或者,
所述协作 RRU203 , 用于将接收到的用户数据依次进行 DFT处理、 干扰抑 制合并处理以及离散傅里叶逆变换 IDFT后, 获得第五 CoMP数据, 并将所述 第五 CoMP数据发送给所述目标 RRU202; 所述目标 RRU202 , 用于将接收到的 用户数据依次进行 DFT处理、 干扰抑制合并处理以及 IDFT后, 获得第六 CoMP 数据; 以及将所述第五 CoMP数据和所述第六 CoMP数据进行最大比合并处理。
需要说明的是, 所述目标 RRU202与所述协作 RRU203可以分别作为两个 设备独立存在, 但所述目标 RRU202与所述协作 RRU203属于一个基站。
本发明实施例提供一种多射频拉远单元共小区协作多点传输的装置, 通 过处理器, 用于根据同一基站的至少两个射频拉远单元 RRU确定用户设备的 目标 RRU; 以及根据所述目标 RRU以及除所述目标 RRU之外的 RRU, 确定所述 用户设备的协作 RRU; 所述目标 RRU, 用于与所述协作 RRU联合对接收到的用 户数据进行协作多点传输 CoMP均衡处理, 可以提高上行解调性能, 并且降低 用户掉线率。 实施例 2
本发明实施例提供一种多射频拉远单元共小区协作多点传输的方法, 该 方法的执行主体为基站, 参照图 1所示, 该方法包括:
步骤 101 , 根据同一基站的至少两个射频拉远单元 RRU, 基站确定用户设 备的目标 RRU;
需要说明的是, 将至少两个 RRU配置成同一个逻辑小区, 即至少两个 RRU 属于同一个基站, 至少包括目标 RRU与协作 RRU。
可选的, 获取同一基站的至少两个射频拉远单元 RRU测量的上行信干噪 比上行 SINR; 确定所述上行 SINR中最大的上行 SINR对应的 RRU为用户设备 的目标 RRU。
步骤 102 , 所述基站根据所述目标 RRU以及除所述目标 RRU之外的 RRU, 确定所述用户设备的协作 RRU;
本步骤可以采用以下两种方式确定协作 RRU:
方式一: 根据所述目标 RRU 测量的上行参考信号接收功率 (Reference s igna l received power , RSRP ) 以及除所述目标 RRU之外的 RRU测量的上行 RSRP, 确定所述用户设备的协作 RRU。 如图 3所示, 包括以下步骤:
步骤 301 , 获取目标 RRU测量的上行 RSRP, 并记为 RSRP ( 0 );
步骤 302 , 获取除目标 RRU之外的 RRU测量的上行 RSRP, 并将测量的上 行 RSRP进行由高到低排序, 并依此记为 RSRP ( i ),其中, i=l, 2, ·'·Ν_1,其中 Ν为同一基站的 RRU的个数;
步骤 303 , 分别计算 RSRP ( 0 )与 RSRP ( i )的差值的绝对值, 即根据 D [ i] = abs [RSRP (0) - RSRP (i) ] 计算上行 RSRP 的差值的绝对值, 其中, i=l, 2, 3---N-L
步骤 304 , 判断 D [ i]是否大于预设 CoMP门限;
可选的, 预设 CoMP门限可以为 6dB或 10dB。
步骤 305 , 当 D [ i]都大于预设 CoMP 门限时, 则所述用户设备为非 CoMP 用户, 退出处理流程; 步骤 306, 当 D[i]小于或者等于预设 CoMP门限时, 判断 D[i]对应的 RRU 是否为相同天线数目的 RRU;
需要说明的是, 当满足预设 CoMP门限的 RRU为至少两个时, 则需要进一 步判断 D [ i ]对应的 RRU是否为相同天线数目的 RRU; 当满足预设 CoMP门限的 RRU仅为一个时, 则直接确定满足条件的这一个 RRU为协作 RRU。
步骤 307, 当 D[i]对应的 RRU为相同天线数目的 RRU时, 则确定 D[i]中 最小差值的绝对值对应的 RRU为所述用户设备的协作 RRU;
相同天线数目的 RRU可以为 2天线的 RRU, 或者可以为 8天线的 RRU。 步骤 308, 当 D[i]对应的 RRU为不同天线数目的 RRU时, 根据 D[i]对应 的 RRU测量的上行 SINR,确定最大上行 SINR对应的 RRU为所述用户设备的协 作 RRU。
不同天线数目的 RRU可以为 2天线的 RRU和 8天线的 RRU。
方式二: 根据所述目标 RRU测量的上行 SINR以及除所述目标 RRU之外的
RRU测量的上行 SINR, 确定所述用户设备的协作 RRU; 如图 4所示, 包括以下 步骤:
步骤 401 , 分别计算所述目标 RRU测量的上行 SINR与除所述目标 RRU之 外的 RRU测量的上行 SINR的差值;
步骤 402, 判断计算的所述差值是否小于或者等于预设上行 SINR差值门 限;
步骤 403, 当所述差值小于或者等于预设上行 SINR差值门限时, 根据所 述差值对应的 RRU测量的上行 SINR,确定最大上行 SINR对应的 RRU为所述用 户设备的协作 RRU。
步骤 404, 当所述差值大于预设上行 SINR差值门限时, 则所述用户设备 为非 CoMP用户, 退出处理流程。
步骤 103,根据所述目标 RRU和所述协作 RRU对接收到的用户数据进行协 作多点传输 CoMP均衡处理, 以获得所述用户设备的解调数据;
本步骤根据目标 RRU和协作 RRU的天线数目可以采用以下两种均衡方案: 可选的, 当目标 RRU和协作 RRU为相同天线数目的 RRU时, 例如, 目标 RRU和协作 RRU均为 2天线 RRU时, 如图 5所示, 协作 RRU将 2根天线接收到 的用户数据进行离散傅里叶变换 DFT处理, 即将时域数据转换到频域, 获得 第一 CoMP数据, 并将获得的第一 CoMP数据发送给目标 RRU;
在协作 RRU对接收到的用户数据进行处理的同时, 目标 RRU将 2根天线 接收到的用户数据进行 DFT处理,获得第二 CoMP数据;目标 RRU接收协作 RRU 发送的第一 CoMP数据, 并将所述第一 CoMP数据和所述第二 CoMP数据进行干 扰^7制合并( Interference Rejection Combining, IRC)处理, 即^ 14天线 的 RRU进行联合 IRC均衡。
需要说明的是, 进行均衡处理后, 目标 RRU依次进行离散傅里叶逆变换 ( Inverse Discrete Fourier Transform , IDFT )、 正交幅度调制 ( Quadrature Amplitude Modulation, QAM )、 解交织运算、 混合自动重发请求 ( Hybrid Automatic Requestor, HARQ )合并 Combine, 以及呙轮解码 Turbo Decode, 获得用户设备的解调数据。
可选的, 当所述目标 RRU和所述协作 RRU为不同天线数目的 RRU时, 例 如, 目标 RRU为 2天线 RRU, 协作 RRU为 8天线 RRU, 如图 6所示, 协作 RRU 将预设数目的天线接收到的用户数据进行 DFT处理, 即将时域数据转换到频 域, 可选的, 将 8天线 RRU中任选 6根天线接收到的用户数据进行 DFT处理, 获得第三 CoMP数据; 将获得的第三 CoMP数据发送给目标 RRU; 在协作 RRU将 接收到的用户数据进行 DFT处理的同时, 所述目标 RRU将 2根天线接收到的 用户数据进行 DFT处理, 获得第二 CoMP数据; 目标 RRU接收协作 RRU发送的 第三 CoMP数据, 并将所述第三 CoMP数据和所述第二 CoMP数据进行干扰抑制 合并处理;
或者, 目标 RRU将 2根天线接收到的用户数据进行 DFT处理, 获得第二 CoMP数据; 目标 RRU将获得的第二 CoMP数据, 发送给协作 RRU; 在目标 RRU 将接收到的用户数据进行 DFT处理的同时, 所述协作 RRU将预设数目的天线 接收到的用户数据进行 DFT处理, 可选的, 将 RRU中的 8天线中任选 6根天 线接收到的用户数据进行 DFT处理, 获得第三 CoMP数据; 协作 RRU接收目标 RRU发送的第二 CoMP数据, 并将所述第三 CoMP数据和所述第二 CoMP数据进 行干扰抑制合并处理。
需要说明的是, 进行均衡处理后, 目标 RRU依次进行 IDFT、 QAM, 解交织 运算、 HARQ合并 Comb ine , 以及涡轮解码 Turbo Decode , 获得用户设备的解 调数据。
可选的, 当所述目标 RRU和所述协作 RRU为不同天线数目的 RRU时, 例 如, 目标 RRU为 2天线 RRU, 协作 RRU为 8天线 RRU, 还可以采用下面所述的 方法进行 CoMP均衡处理, 如图 7所示, 协作 RRU将 8根天线接收到的用户数 据依次进行 DFT处理、 干扰抑制合并处理以及离散傅里叶逆变换 IDFT后, 获 得第五 CoMP数据, 并将所述第五 CoMP数据发送给目标 RRU; 在协作 RRU将 8 根天线接收到的用户数据进行处理的同时, 目标 RRU将 2根天线接收到的用 户数据依次进行 DFT处理、干扰抑制合并处理以及 IDFT,获得第六 CoMP数据; 目标 RRU接收协作 RRU发送的第五 CoMP数据, 并将所述第五 CoMP数据和所 述第六 CoMP数据进行最大比合并(Max im讓 Ra t io Comb ining , MRC )处理; 需要说明的是, 进行均衡处理后, 目标 RRU依次进行 QAM、 解交织运算、 HARQ合并 Comb ine , 以及涡轮解码 Turbo Decode , 获得用户设备的解调数据。
本发明实施例提供的一种多射频拉远单元共小区协作多点传输的方法, 通过上行多个 RRU联合接收 UE数据并进行处理, 可以进一步提升 RRU重叠区 用户的上行解调性能, 并且降低用户掉线率。
本发明实施例提供一种多射频拉远单元共小区协作多点传输的装置, 该 装置可以为基站,如图 8所示,该装置包括:处理器 801 ,第一确定模块 8011 , 计算子模块 80111 ,确定子模块 801 12 ,第二确定模块 8012 ,计算子模块 80121 , 确定子模块 80122 , 目标 RRU802 , 协作 RRU803;
处理器 801 , 用于根据至少两个射频拉远单元 RRU确定用户设备的目标 RRU; 以及根据所述目标 RRU以及除所述目标 RRU之外的 RRU, 确定所述用户 设备的协作 RRU; 至少两个射频拉远单元 RRU属于本实施例的多射频拉远单元共小区协作 多点传输的装置, 即属于一个基站。
进一步的, 所述处理器 801用于: 获取至少两个 RRU测量的上行信干噪 比上行 SINR; 以及确定所述上行 SINR中最大的上行 SINR对应的 RRU为用户 设备的目标 RRU。
进一步的, 所述处理器 801中的第一确定模块 8011 , 用于根据所述目标 RRU测量的上行 RSRP以及除所述目标 RRU之外的 RRU测量的上行 RSRP , 确定 所述用户设备的协作 RRU; 或者,
所述处理器 801中的第二确定模块 8012 , 用于根据所述目标 RRU测量的 上行 SINR以及除所述目标 RRU之外的 RRU测量的上行 SINR,确定所述用户设 备的协作 RRU。
需要说明的是,处理器 801中包括第一确定模块 8011、第二确定模块 8012 中的至少一个。
进一步的, 所述第一确定模块 8011中的计算子模块 80111 , 用于分别计 算所述目标 RRU测量的上行 RSRP与除所述目标 RRU之外的各个 RRU测量的上 行 RSRP的差值的绝对值;
所述第一确定模块 8011 中的确定子模块 80112 , 用于根据所述差值的绝 对值确定所述用户设备的协作 RRU。 具体的, 所述确定子模块 80112用于当至 少两个所述差值的绝对值小于或者等于预设 CoMP门限, 并且至少两个所述差 值的绝对值对应的 RRU为相同天线数目的 RRU时, 确定至少两个所述差值的 绝对值中最小差值的绝对值对应的 RRU为所述用户设备的协作 RRU; 以及当至 少两个所述差值的绝对值小于或者等于预设 CoMP门限, 并且至少两个所述差 值的绝对值对应的 RRU为不同天线数目的 RRU时, 根据至少两个所述差值的 绝对值对应的 RRU测量的上行 SINR,确定最大上行 SINR对应的 RRU为所述用 户设备的协作 RRU;以及当仅有一个所述差值的绝对值小于或者等于预设 CoMP 门限, 则确定所述差值的绝对值对应的 RRU为所述用户设备的协作 RRU; 以及 当所有的所述差值的绝对值大于预设 CoMP门限时,则所述用户设备为非 CoMP 用户, 退出处理流程。
进一步的, 所述第二确定模块 8012中的计算子模块 80121 , 用于分别计 算所述目标 RRU测量的上行 S INR与除所述目标 RRU之外的 RRU测量的上行 S INR的差值;
所述第二确定模块 8012中的确定子模块 80122 , 用于当所述差值小于或 者等于预设上行 S INR差值门限时,根据所述差值对应的 RRU测量的上行 S INR, 确定最大上行 S INR对应的 RRU为所述用户设备的协作 RRU。
所述目标 RRU802 ,用于与所述协作 RRU803联合对接收到的用户数据进行 协作多点传输 CoMP均衡处理。
进一步的,当所述目标 RRU802和所述协作 RRU803为相同天线数目的 RRU 时, 所述协作 RRU803 , 用于将接收到的用户数据进行离散傅里叶变换 DFT处 理, 将获得的第一 CoMP数据发送给所述目标 RRU802 ;
所述目标 RRU802 ,用于将接收到的用户数据进行 DFT处理,获得第二 CoMP 数据, 并将所述第一 CoMP数据和所述第二 CoMP数据进行干扰抑制合并处理。
进一步的,当所述目标 RRU802和所述协作 RRU803为不同天线数目的 RRU 时, 所述协作 RRU803 , 用于将预设数目的天线接收到的用户数据进行 DFT处 理, 将获得的第三 CoMP数据发送给所述目标 RRU802 ; 所述目标 RRU802 , 用 于将接收到的用户数据进行 DFT处理,获得第二 CoMP数据,并将所述第三 CoMP 数据和所述第二 CoMP数据进行干扰抑制合并处理; 或者,
所述目标 RRU802 , 用于将接收到的用户数据进行 DFT处理, 将获得的第 二 CoMP数据, 发送给所述协作 RRU803; 所述协作 RRU803 , 用于将预设数目 的天线接收到的用户数据进行 DFT处理, 获得第三 CoMP数据, 并将所述第三 CoMP数据和所述第二 CoMP数据进行干扰抑制合并处理; 或者,
所述协作 RRU803 , 用于将接收到的用户数据依次进行 DFT处理、 干扰抑 制合并处理以及离散傅里叶逆变换 IDFT后, 获得第五 CoMP数据, 并将所述 第五 CoMP数据发送给所述目标 RRU802; 所述目标 RRU802 , 用于将接收到的 用户数据依次进行 DFT处理、 干扰抑制合并处理以及 IDFT后, 获得第六 CoMP 数据; 以及将所述第五 CoMP数据和所述第六 CoMP数据进行最大比合并处理。 需要说明的是, 所述目标 RRU802与所述协作 RRU803可以分别作为两个设 备独立存在, 但所述目标 RRU802与所述协作 RRU803属于一个基站。
本发明实施例提供一种多射频拉远单元共小区协作多点传输的装置, 通 过处理器, 用于根据同一基站的至少两个射频拉远单元 RRU确定用户设备的 目标 RRU; 以及根据所述目标 RRU以及除所述目标 RRU之外的 RRU, 确定所述 用户设备的协作 RRU; 所述目标 RRU, 用于与所述协作 RRU联合对接收到的用 户数据进行协作多点传输 CoMP均衡处理, 可以提高上行解调性能, 并且降低 用户掉线率。
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。

Claims

权利 要求 书
1、 一种多射频拉远单元共小区协作多点传输的方法, 其特征在于, 包括: 根据同一基站的至少两个射频拉远单元 RRU确定用户设备的目标 RRU;
根据所述目标 RRU以及除所述目标 RRU之外的 RRU,确定所述用户设备的协 作 RRU;
由所述目标 RRU 和所述协作 RRU 对接收到的用户数据进行协作多点传输 CoMP均衡处理, 以获得所述用户设备的解调数据。
2、 根据权利要求 1所述的方法, 其特征在于, 所述根据同一基站的至少两 个射频拉远单元 RRU确定用户设备的目标 RRU包括:
获取同一基站的至少两个 RRU测量的上行信干噪比 SINR;
确定所述上行 SINR中最大的上行 SINR对应的 RRU为用户设备的目标 RRU。
3、 根据权利要求 2所述的方法, 其特征在于, 所述根据所述目标 RRU以及 除所述目标 RRU之外的 RRU, 确定所述用户设备的协作 RRU包括:
根据所述目标 RRU测量的上行参考信号接收功率 RSRP以及除所述目标 RRU 之外的 RRU测量的上行 RSRP, 确定所述用户设备的协作 RRU; 或者,
根据所述目标 RRU测量的上行 SINR以及除所述目标 RRU之外的 RRU测量的 上行 SINR, 确定所述用户设备的协作 RRU。
4、 根据权利要求 3所述的方法, 其特征在于, 所述根据所述目标 RRU测量 的上行 RSRP以及除所述目标 RRU之外的 RRU测量的上行 RSRP ,确定所述用户设 备的协作 RRU包括:
分别计算所述目标 RRU测量的上行 RSRP与除所述目标 RRU之外的各个 RRU 测量的上行 RSRP的差值的绝对值;
根据所述差值的绝对值确定所述用户设备的协作 RRU。
5、 根据权利要求 4所述的方法, 其特征在于, 所述根据所述差值的绝对值 确定所述用户设备的协作 RRU包括:
当至少两个所述差值的绝对值小于或者等于预设 CoMP门限, 并且至少两个 所述差值的绝对值对应的 RRU为相同天线数目的 RRU时, 确定至少两个所述差 值的绝对值中最小差值的绝对值对应的 RRU为所述用户设备的协作 RRU;
当至少两个所述差值的绝对值小于或者等于预设 CoMP门限, 并且至少两个 所述差值的绝对值对应的 RRU为不同天线数目的 RRU时, 根据至少两个所述差 值的绝对值对应的 RRU测量的上行 S INR,确定最大上行 SINR对应的 RRU为所述 用户设备的协作 RRU;
当仅有一个所述差值的绝对值小于或者等于预设 CoMP门限, 则确定所述差 值的绝对值对应的 RRU为所述用户设备的协作 RRU;
当所有的所述差值的绝对值大于预设 CoMP 门限时, 则所述用户设备为非 CoMP用户, 退出处理流程。
6、 根据权利要求 3所述的方法, 其特征在于, 所述根据所述目标 RRU测量 的上行 SINR以及除所述目标 RRU之外的 RRU测量的上行 SINR,确定所述用户设 备的协作 RRU包括:
分别计算所述目标 RRU测量的上行 SINR与除所述目标 RRU之外的 RRU测量 的上行 SINR的差值;
当所述差值小于或者等于预设上行 SINR差值门限时, 根据所述差值对应的 RRU测量的上行 S I NR ,确定最大上行 S I NR对应的 RRU为所述用户设备的协作 RRU。
7、 根据权利要求 1所述的方法, 其特征在于, 当所述目标 RRU和所述协作 RRU为相同天线数目的 RRU时,所述由所述目标 RRU和所述协作 RRU对接收到的 用户数据进行协作多点传输 CoMP均衡处理包括:
基站中的所述协作 RRU将接收到的用户数据进行离散傅里叶变换 DFT处理, 将获得的第一 CoMP数据发送给所述基站中的所述目标 RRU;
所述目标 RRU将接收到的用户数据进行 DFT处理, 获得第二 CoMP数据, 并 将所述第一 CoMP数据和所述第二 CoMP数据进行干扰抑制合并处理。
8、 根据权利要求 1所述的方法, 其特征在于, 当所述目标 RRU和所述协作 RRU为不同天线数目的 RRU时,所述由所述目标 RRU和所述协作 RRU对接收到的 用户数据进行协作多点传输 CoMP均衡处理包括:
基站中的所述协作 RRU将预设数目的天线接收到的用户数据进行 DFT处理, 将获得的第三 CoMP数据发送给所述基站中的所述目标 RRU; 所述目标 RRU将接 收到的用户数据进行 DFT处理, 获得第二 CoMP数据, 并将所述第三 CoMP数据 和所述第二 CoMP数据进行干扰抑制合并处理; 或者,
基站中的所述目标 RRU将接收到的用户数据进行 DFT处理, 将获得的第二 CoMP数据, 发送给所述基站中的所述协作 RRU; 所述协作 RRU将预设数目的天 线接收到的用户数据进行 DFT处理, 获得第三 CoMP数据, 并将所述第三 CoMP 数据和所述第二 CoMP数据进行干扰抑制合并处理; 或者,
基站中的所述协作 RRU将接收到的用户数据依次进行 DFT处理、 干扰抑制 合并处理以及离散傅里叶逆变换 I DFT后, 获得第五 CoMP数据, 并将所述第五 CoMP数据发送给所述目标 RRU; 同时基站中的所述目标 RRU将接收到的用户数 据依次进行 DFT处理、 干扰抑制合并处理以及 I DFT后, 获得第六 CoMP数据; 所述目标 RRU将所述第五 CoMP数据和所述第六 CoMP数据进行最大比合并处理。
9、 一种多射频拉远单元共小区协作多点传输的装置, 其特征在于, 包括: 处理器, 用于根据至少两个射频拉远单元 RRU确定用户设备的目标 RRU; 以 及根据所述目标 RRU以及除所述目标 RRU之外的 RRU ,确定所述用户设备的协作 RRU;
所述目标 RRU ,用于与所述协作 RRU联合对接收到的用户数据进行协作多点 传输 CoMP均衡处理。
1 0、 根据权利要求 9所述的装置, 其特征在于, 所述处理器用于: 获取至少两个 RRU测量的上行信干噪比 S INR; 以及确定所述上行 S INR中最 大的上行 S INR对应的 RRU为用户设备的目标 RRU。
1 1、 根据权利要求 1 0所述的装置, 其特征在于, 所述处理器包括: 第一确定模块,用于根据所述目标 RRU测量的上行 RSRP以及除所述目标 RRU 之外的 RRU测量的上行 RSRP , 确定所述用户设备的协作 RRU; 或者,
第二确定模块,用于根据所述目标 RRU测量的上行 S INR以及除所述目标 RRU 之外的 RRU测量的上行 S INR , 确定所述用户设备的协作 RRU。
12、 根据权利要求 1 1所述的装置, 其特征在于, 所述第一确定模块包括: 计算子模块,用于分别计算所述目标 RRU测量的上行 RSRP与除所述目标 RRU 之外的各个 RRU测量的上行 RSRP的差值的绝对值;
确定子模块, 用于根据所述差值的绝对值确定所述用户设备的协作 RRU。
13、 根据权利要求 12所述的装置, 其特征在于, 所述确定子模块用于: 当至少两个所述差值的绝对值小于或者等于预设 CoMP门限, 并且至少两个 所述差值的绝对值对应的 RRU为相同天线数目的 RRU时, 确定至少两个所述差 值的绝对值中最小差值的绝对值对应的 RRU为所述用户设备的协作 RRU;
以及当至少两个所述差值的绝对值小于或者等于预设 CoMP门限, 并且至少 两个所述差值的绝对值对应的 RRU为不同天线数目的 RRU时, 根据至少两个所 述差值的绝对值对应的 RRU测量的上行 SINR,确定最大上行 SINR对应的 RRU为 所述用户设备的协作 RRU;
以及当仅有一个所述差值的绝对值小于或者等于预设 CoMP门限, 则确定所 述差值的绝对值对应的 RRU为所述用户设备的协作 RRU;
以及当所有的所述差值的绝对值大于预设 CoMP门限时, 则所述用户设备为 非 CoMP用户, 退出处理流程。
14、 根据权利要求 11所述的装置, 其特征在于, 所述第二确定模块包括: 计算子模块, 用于分别计算所述目标 RRU测量的 SINR与除所述目标 RRU之 外的 RRU测量的 SINR的差值;
确定子模块, 用于当所述差值小于或者等于预设上行 S INR差值门限时, 根 据所述差值对应的 RRU测量的上行 S INR,确定最大上行 SINR对应的 RRU为所述 用户设备的协作 RRU。
15、 根据权利要求 9所述的装置, 其特征在于, 当所述目标 RRU和所述协 作 RRU为相同天线数目的 RRU时,
所述协作 RRU, 用于将接收到的用户数据进行离散傅里叶变换 DFT处理, 将 获得的第一 CoMP数据发送给所述目标 RRU;
所述目标 RRU, 用于将接收到的用户数据进行 DFT处理, 获得第二 CoMP数 据, 并将所述第一 CoMP数据和所述第二 CoMP数据进行干扰抑制合并处理。
16、 根据权利要求 9所述的方法, 其特征在于, 当所述目标 RRU和所述协 作 RRU为不同天线数目的 RRU时,
所述协作 RRU , 用于将预设数目的天线接收到的用户数据进行 DFT处理, 将 获得的第三 CoMP数据发送给所述目标 RRU; 所述目标 RRU , 用于将接收到的用 户数据进行 DFT处理, 获得第二 CoMP数据, 并将所述第三 CoMP数据和所述第 二 CoMP数据进行干扰抑制合并处理; 或者,
所述目标 RRU ,用于将接收到的用户数据进行 DFT处理,将获得的第二 CoMP 数据, 发送给所述协作 RRU; 所述协作 RRU , 用于将预设数目的天线接收到的用 户数据进行 DFT处理, 获得第三 CoMP数据, 并将所述第三 CoMP数据和所述第 二 CoMP数据进行干扰抑制合并处理; 或者,
所述协作 RRU , 用于将接收到的用户数据依次进行 DFT处理、 干扰抑制合并 处理以及离散傅里叶逆变换 I DFT后, 获得第五 CoMP数据, 并将所述第五 CoMP 数据发送给所述目标 RRU;所述目标 RRU ,用于将接收到的用户数据依次进行 DFT 处理、 干扰抑制合并处理以及 I DFT后, 获得第六 CoMP数据; 以及将所述第五 CoMP数据和所述第六 CoMP数据进行最大比合并处理。
PCT/CN2012/085610 2012-07-10 2012-11-30 一种多射频拉远单元共小区协作多点传输的方法及装置 WO2014008735A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201210237441.4A CN103546260B (zh) 2012-07-10 2012-07-10 一种多射频拉远单元共小区协作多点传输的方法及装置
CN201210237441.4 2012-07-10

Publications (1)

Publication Number Publication Date
WO2014008735A1 true WO2014008735A1 (zh) 2014-01-16

Family

ID=49915353

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2012/085610 WO2014008735A1 (zh) 2012-07-10 2012-11-30 一种多射频拉远单元共小区协作多点传输的方法及装置

Country Status (2)

Country Link
CN (1) CN103546260B (zh)
WO (1) WO2014008735A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104218981A (zh) * 2014-08-26 2014-12-17 大唐移动通信设备有限公司 一种多天线的联合处理方法和设备

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105992229B (zh) * 2015-02-27 2019-08-27 上海诺基亚贝尔股份有限公司 一种在无线通信网络中实施小区分割的方法及其设备
WO2024108533A1 (zh) * 2022-11-25 2024-05-30 深圳市运联通通信服务有限公司 信号的处理方法、装置及存储介质

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101583161A (zh) * 2009-05-26 2009-11-18 北京邮电大学 协作节点单元选择方法及装置
CN101982995A (zh) * 2010-10-29 2011-03-02 华为技术有限公司 一种通信的方法、装置和***
CN102195760A (zh) * 2010-03-16 2011-09-21 松下电器产业株式会社 无线通信***、基站、终端及码本生成方法
CN102324954A (zh) * 2011-05-18 2012-01-18 西安电子科技大学 基于同步约束和信道能量准则的协作组合优选方法
CN102484551A (zh) * 2009-08-21 2012-05-30 高通股份有限公司 用于协调式多点传输的多点均衡架构

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2374220B1 (en) * 2008-12-30 2017-10-25 Telecom Italia S.p.A. A method for adaptive distributed mobile communications, corresponding system and computer program product

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101583161A (zh) * 2009-05-26 2009-11-18 北京邮电大学 协作节点单元选择方法及装置
CN102484551A (zh) * 2009-08-21 2012-05-30 高通股份有限公司 用于协调式多点传输的多点均衡架构
CN102195760A (zh) * 2010-03-16 2011-09-21 松下电器产业株式会社 无线通信***、基站、终端及码本生成方法
CN101982995A (zh) * 2010-10-29 2011-03-02 华为技术有限公司 一种通信的方法、装置和***
CN102324954A (zh) * 2011-05-18 2012-01-18 西安电子科技大学 基于同步约束和信道能量准则的协作组合优选方法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104218981A (zh) * 2014-08-26 2014-12-17 大唐移动通信设备有限公司 一种多天线的联合处理方法和设备
CN104218981B (zh) * 2014-08-26 2018-03-20 大唐移动通信设备有限公司 一种多天线的联合处理方法和设备

Also Published As

Publication number Publication date
CN103546260A (zh) 2014-01-29
CN103546260B (zh) 2017-04-19

Similar Documents

Publication Publication Date Title
JP6775490B2 (ja) 無線通信システムで干渉信号除去及び抑制を用いたダウンリンクデータ受信方法及び装置
JP6342408B2 (ja) Ofdmaシステムにおける同期してコード化されたサブキャリアを用いるフィードバック計算および復号のための方法および装置
JP6197244B2 (ja) 同一チャネルセル干渉を処理するための方法、装置、及びシステム
AU2013338783A1 (en) Transmission scheme and quasi co-location assumption of antenna ports for PDSCH of transmission mode 10 for LTE advanced
EP2710753A2 (en) Reduced complexity receiver for ul comp
WO2018028384A1 (zh) 一种信息处理方法和装置
EP2912794B1 (en) Distributed v-mimo processing for coordinated multipoint reception
WO2012097647A1 (zh) 一种扰码标识信令组的通知方法及***
US20230105580A1 (en) Beamformer solicited sounding
EP2896140A1 (en) Methods and apparatus for providing multi-antenna enhancements using multiple processing units
WO2011157110A2 (zh) 一种协作多点传输方法、设备以及***
JP5432288B2 (ja) 同期ofdmシステムにおける干渉基地局の干渉相殺のためのプロセスおよびレシーバ
WO2014008735A1 (zh) 一种多射频拉远单元共小区协作多点传输的方法及装置
CN103858398A (zh) 数据解调方法与***、以及用户设备
WO2014089842A1 (zh) 一种上行CoMP集合的选择方法、设备及***
WO2016061942A1 (zh) 联合干扰抑制方法及装置、实现上行CoMP方法及装置
US20120093263A1 (en) Method and Apparatus for Interference Suppression using a Reduced-Complexity Joint Detection
WO2012167692A1 (zh) 小区间干扰抑制的下行业务传输方法及装置
TWI634755B (zh) 解調方法及接收裝置
CN108400947B (zh) 干扰噪声协方差矩阵估计方法、装置及***
WO2017012448A1 (zh) 一种信号发送、解调方法以及设备和***
WO2013056599A1 (zh) 一种实现数据传输的方法及装置
EP4297469A1 (en) Method for determining remote radio device and distributed ap
WO2012167573A1 (zh) 信号发送方法和基站设备
Zhao et al. Efficient CSI correction with CFO for uplink MU-MIMO networks

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 12880947

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 12880947

Country of ref document: EP

Kind code of ref document: A1