WO2016000491A1 - 确定拉远射频单元rru的方法与设备 - Google Patents

确定拉远射频单元rru的方法与设备 Download PDF

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Publication number
WO2016000491A1
WO2016000491A1 PCT/CN2015/078749 CN2015078749W WO2016000491A1 WO 2016000491 A1 WO2016000491 A1 WO 2016000491A1 CN 2015078749 W CN2015078749 W CN 2015078749W WO 2016000491 A1 WO2016000491 A1 WO 2016000491A1
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Prior art keywords
terminal
rru
threshold
rrus
bbu
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PCT/CN2015/078749
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English (en)
French (fr)
Inventor
李立
高全中
严朝译
黄晖
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华为技术有限公司
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Priority to JP2016575947A priority Critical patent/JP6719393B2/ja
Priority to KR1020177001102A priority patent/KR101907326B1/ko
Priority to EP15815482.3A priority patent/EP3148279B1/en
Publication of WO2016000491A1 publication Critical patent/WO2016000491A1/zh
Priority to US15/391,024 priority patent/US10165586B2/en

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    • 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
    • H04L5/0032—Distributed allocation, i.e. involving a plurality of allocating devices, each making partial allocation
    • H04L5/0035—Resource allocation in a cooperative multipoint environment
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • H04W72/542—Allocation or scheduling criteria for wireless resources based on quality criteria using measured or perceived quality
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/309—Measuring or estimating channel quality parameters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/309—Measuring or estimating channel quality parameters
    • H04B17/345—Interference values
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08—Access point devices
    • H04W88/085—Access point devices with remote components
    • 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
    • H04L5/0014—Three-dimensional division
    • H04L5/0023—Time-frequency-space
    • 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
    • H04L5/0058—Allocation criteria
    • H04L5/006—Quality of the received signal, e.g. BER, SNR, water filling
    • 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
    • H04L5/0058—Allocation criteria
    • H04L5/0069—Allocation based on distance or geographical location

Definitions

  • the present invention relates to the field of communications, and in particular, to a method and an apparatus for determining a radio frequency unit RRU.
  • the long-term evolution (Long Term Evaluation, LTE for short) system generally adopts the working mode of the same-frequency networking, which makes the interference between the cells very serious; especially in the network with high site density, the interference is particularly obvious.
  • the technique of using a plurality of remote radio unit (RRU) common cell can reduce the interference in dense station and obtain the combined gain.
  • the multi-RRU common cell technology is specifically a technology for combining multiple RRUs into one cell and performing joint transmission on all terminals.
  • the base station uses multiple RRU common cell technologies to perform resource scheduling on the terminal.
  • the specific process is shown in Figure 1.
  • the base station combines multiple independent RRUs (for example, RRU1, RRU2, and RRU3) into one logical cell, and in the cell, the physical cell IDs of the physical cells of the multiple independent RRUs are the same.
  • the base station sends multiple RRUs in the cell to the same time-frequency resource to simultaneously transmit the same data for a certain terminal, so that the signals of the multiple cells that originally interfered with each other become multipath-superimposed enhanced signals, and the edge signals of the cells are improved.
  • SINR Signal-to-Interference plus Noise Ratio
  • the multi-RRU joint transmission method used in the prior art also exposes the following problem: in this technology, when the base station performs resource scheduling for all terminals, the multiple RRU joint transmission mode is adopted, but since there is no RRU between the RRUs Resource reuse, therefore, system throughput loss is severe in the case of sufficient multi-user traffic.
  • the embodiment of the invention discloses a method and a device for determining a remote radio unit RRU, so as to solve the problem that the multi-RRU joint transmission mode is adopted in the prior art, resulting in serious system throughput loss in the case of sufficient multi-user traffic. .
  • an embodiment of the present invention provides a method for determining a remote radio unit RRU, the method comprising:
  • the baseband unit BBU acquires interference strength information of the terminal, where the interference strength information includes a downlink mode of the terminal;
  • the method further includes:
  • the BBU performs resource scheduling on the terminal by using a second RRU, where the second RRU is a plurality of the BBUs serving from the terminal. Selected by an RRU; or, if the downlink mode is not using the DRS demodulation, the BBU performs resource scheduling on the terminal by using a third RRU, where the third RRU is the The BBU is determined according to any one of an uplink signal strength value of the terminal, a downlink quality value of the terminal, and an uplink quality value of the terminal.
  • the multiple first RRUs are composed of the second RRU and other RRUs, and the signal strength value of the second RRU is greater than the signal strength value of the other RRUs.
  • the third RRU includes all RRUs controlled by the BBU.
  • the third RRU includes a plurality of first RRUs serving the terminal.
  • the method further includes:
  • the BBU determines whether the uplink quality value is less than a third threshold.
  • the method further includes:
  • the BBU acquires location information of the terminal, and determines a plurality of first RRUs serving the terminal according to the location information and the interference strength information of the terminal.
  • an embodiment of the present invention provides an apparatus for determining a remote radio unit, including: a first unit and a second unit, where:
  • the first unit is configured to acquire interference strength information of the terminal, where the interference strength information includes a downlink mode of the terminal;
  • the second unit when the downlink mode is demodulated by using dedicated pilot DRS, performing resource scheduling on the terminal by using a second RRU, where the second RRU is from multiple services for the terminal Selected in the first RRU; or,
  • the second unit is configured to perform resource scheduling on the terminal by using a third RRU when the downlink mode is not using the DRS demodulation, where the third RRU is based on an uplink signal of the terminal. Determined by any one of an intensity value, a downlink quality value of the terminal, and an uplink quality value of the terminal.
  • the multiple first RRUs are composed of the second RRU and other RRUs, and the signal strength value of the second RRU is greater than the signal strength value of the other RRUs.
  • the second unit is further configured to determine a signal strength of each of the plurality of first RRUs And determining a maximum value of the signal strength value of each of the first RRUs, and determining a first RRU corresponding to the maximum value as the second RRU.
  • the third RRU includes all RRUs controlled by the device.
  • the third RRU includes a plurality of first RRUs serving the terminal.
  • the second unit is further configured to:
  • the first unit is further used Obtaining location information of the terminal;
  • the second unit is further configured to determine, according to the location information and the interference strength information of the terminal, a plurality of first RRUs that serve the terminal.
  • the device It is a baseband unit BBU or a base station.
  • the BBU obtains the terminal interference strength information, and if the interference strength information includes the downlink of the terminal
  • the link mode is demodulated by dedicated pilot DRS, and the BBU uses the second RRU to perform resource scheduling on the terminal, and the second RRU is selected by the BBU from multiple first RRUs serving the terminal; or, if the downlink mode is not With DRS demodulation, the BBU uses the third RRU to perform resource scheduling on the terminal, and the third RRU is determined by the BBU according to any one of the uplink signal strength value, the downlink quality value, and the uplink quality value of the terminal.
  • the BBU determines the RRU of the service for the terminal, thereby obtaining higher user performance reliability and system efficiency, and also improving resource utilization and system. Throughput.
  • FIG. 1 is a schematic diagram of resource scheduling of a terminal by a multi-RRU common cell technology in the prior art
  • FIG. 2 is a flowchart of a method for determining a pull radio cell RRU according to Embodiment 1 of the present invention
  • FIG. 3 is a flowchart of a method for determining a radio frequency unit RRU according to Embodiment 2 of the present invention
  • FIG. 4 is a schematic structural diagram of an apparatus for determining a radio frequency unit RRU for selecting a radio frequency unit according to Embodiment 3 of the present invention
  • FIG. 5 is a schematic structural diagram of hardware of a device for determining a radio frequency unit RRU according to Embodiment 4 of the present invention.
  • FIG. 2 is a flowchart of a method for determining a radio frequency unit RRU according to the first embodiment of the present invention.
  • the base station includes a BBU and a plurality of RRUs connected to the BBU.
  • the implementation is performed as a BBU in the base station or as a base station.
  • the embodiment specifically includes the following steps:
  • Step 210 The baseband unit BBU acquires interference intensity information of the terminal, where the interference loudness information includes a downlink mode of the terminal.
  • the BBU acquires interference strength information of the terminal.
  • the interference strength information is specifically sent by the terminal to the BBU after being measured by the terminal; or the interference strength information is specifically obtained by the BBU.
  • the downlink mode of the terminal is a transmission mode (TM) TM7, TM8, TM9, TM10, and the like.
  • Step 220 Determine, according to whether the downlink mode uses dedicated pilot DRS demodulation, determine a second RRU or a third RRU, and perform resource scheduling on the terminal by using the second RRU or the third RRU. For example, if the downlink mode is demodulated by dedicated pilot DRS, the BBU performs resource scheduling on the terminal by using a second RRU, where the second RRU is more than the BBU serving the terminal.
  • the BBU performs resource scheduling on the terminal by using a third RRU, where the third RRU is The BBU is determined according to any one of an uplink signal strength value of the terminal, a downlink quality value of the terminal, and an uplink quality value of the terminal.
  • the BBU determines whether the downlink mode uses Dedicated Reference Signal (DRS) demodulation. If the downlink mode adopts DRS demodulation, the BBU utilizes the second RRU. Resource scheduling is performed on the terminal, where the second RRU is selected by the BBU from a plurality of first RRUs serving the terminal.
  • DRS Dedicated Reference Signal
  • the BBU uses the third RRU to perform resource scheduling on the terminal, where the third RRU is the BBU according to the uplink signal strength value of the terminal, the downlink quality value of the terminal, and the terminal. Determined by any of the uplink quality values.
  • the uplink signal strength value, the downlink quality value, and the uplink quality value may be carried in the interference strength information.
  • the uplink signal strength value includes a Demodulation Reference Signal (DMRS) Reference Signal Received Power (RSRP) and an uplink sounding reference signal (Sounding). Reference Signal (SRS), RSRP, etc.;
  • the downlink quality value includes a Channel Quality Indicator (CQI) or its filtered value, or the original joint subband originally reported by the all-integrated all-band original report. CQI or its filtered value, the adjusted CQI of the user and its filtered value, the adjusted spectral efficiency of the user, etc.
  • the uplink quality value includes an uplink DMRS SINR and an uplink SRS SINR.
  • the multiple first RRUs are composed of a second RRU and other RRUs, and the signal strength value of the second RRU is greater than the signal strength value of the other RRUs. That is, if the downlink mode adopts DRS demodulation, the BBU selects one RRU from the plurality of first RRUs according to the signal strength values of the plurality of first RRUs (the RRU is the signal strength value optimal) ) as the second RRU serving the terminal.
  • the BBU determines whether the uplink signal strength value is less than the first threshold, or the BBU determines whether the downlink quality value is less than the second threshold, or the BBU determines the uplink quality. Whether the value is less than the third threshold.
  • the first threshold is specifically a preset intensity threshold; the second threshold is specifically a preset first quality threshold; and the third threshold is specifically a preset second quality threshold.
  • the third RRU includes all RRUs controlled by the BBU, that is, Said that the BBU determines all RRUs controlled by the BBU; All RRUs and BBUs perform resource scheduling on the terminal.
  • the third RRU includes A plurality of first RRUs serving the terminal, that is, the BBU utilizes a plurality of first RRUs to perform resource scheduling on the terminal.
  • the BBU further acquires location information of the terminal, and the BBU determines, according to the acquired location information and the interference severity information, a plurality of first RRUs served by the terminal.
  • the multiple first RRUs serving the terminal are specifically RRUs that transmit data, signals, or data and signals sent by the terminal to the terminal.
  • the BBU may perform resource scheduling on the terminal by using the third RRU, and the BBU may also use multiple first RRUs to perform resources on the terminal. Scheduling. It should be noted that, in the foregoing embodiment, after acquiring the interference strength information of the terminal, the BBU first determines the downlink mode of the terminal, and if the downlink mode adopts DRS demodulation, the BBU uses the slave to serve the terminal. The second RRU selected by the plurality of first RRUs performs resource scheduling on the terminal;
  • the BBU uses a plurality of first RRUs serving the terminal to perform resource scheduling on the terminal;
  • the BBU utilizes all RRUs of the control terminal. Perform resource scheduling;
  • the BBU utilizes the terminal service.
  • a plurality of first RRUs perform resource scheduling on the terminal.
  • the BBU may first determine any one of an uplink signal strength value, a downlink quality value, and an uplink quality value of the terminal included in the interference strength information. If the uplink signal strength value, the downlink quality value, and the uplink quality value If any one of them is smaller than its corresponding threshold, the BBU performs resource scheduling on the terminal by using all the RRUs controlled;
  • the BBU performs resource scheduling on the terminal by using the multiple first RRUs served by the terminal;
  • the BBU utilizes multiple services from the terminal.
  • a second RRU selected by the first RRU performs resource scheduling on the terminal;
  • the BBU utilizes multiple services for the terminal.
  • the first RRU performs resource scheduling on the terminal.
  • the method for determining the RRU is illustrated by way of example, but is not limited thereto in practical applications.
  • the BBU obtains the terminal interference strength information by applying the method for determining the remote radio unit RRU provided by the embodiment of the present invention. If the downlink mode of the terminal included in the interference strength information is demodulated by the dedicated pilot DRS, the BBU utilizes The second RRU performs resource scheduling on the terminal, and the second RRU is selected by the BBU from multiple first RRUs for the terminal service; or, if the downlink mode is not DRS demodulation, the BBU uses the third RRU to perform resources on the terminal.
  • the third RRU is determined by the BBU according to any one of an uplink signal strength value, a downlink quality value, and an uplink quality value of the terminal.
  • the BBU determines the RRU of the service for the terminal, thereby obtaining higher user performance reliability and system efficiency, and also improving resource utilization and system. Throughput.
  • FIG. 3 is a flowchart of a method for determining a radio frequency unit RRU according to the second embodiment of the present invention.
  • the base station includes a BBU and a plurality of RRUs connected to the BBU.
  • the implementation is performed as a BBU in the base station or as a base station.
  • the embodiment specifically includes the following steps:
  • Step 310 The baseband unit BBU acquires location information and interference strength information of the terminal, where the interference strength information includes a downlink mode of the terminal.
  • the BBU acquires location information and interference strength information of the terminal.
  • the location information and the interference strength information are specifically sent by the terminal to the BBU after being measured by the terminal; or the location information and the interference strength information are specifically obtained by the BBU.
  • the downlink mode of the terminal is TM7, TM8, TM9, TM10, and the like.
  • Step 320 The BBU determines, according to the acquired location information and the interference severity information, a plurality of first RRUs that are served by the terminal.
  • the BBU determines, according to the acquired location information and the interference strength information, at least one first remote radio unit served as a terminal.
  • the multiple first RRUs serving the terminal are specifically RRUs that transmit data, signals, or data and signals sent by the terminal to the terminal.
  • Step 330 The BBU determines whether the downlink mode is demodulated by using dedicated pilot DRS.
  • step 340 if the downlink mode adopts DRS demodulation, step 340 is performed; if the downlink mode is not DRS demodulation, step 350 is performed.
  • Step 340 The BBU performs resource scheduling on the terminal by using the second RRU, where the second RRU is selected by the BBU from multiple first RRUs serving the terminal.
  • the BBU determines whether the downlink mode adopts DRS demodulation. If the downlink mode adopts DRS demodulation, the BBU uses the second RRU to perform resource scheduling on the terminal, where the The two RRUs are selected by the BBU from a plurality of first RRUs for terminal services.
  • the multiple first RRUs are composed of a second RRU and other RRUs, and the signal strength value of the second RRU is greater than the signal strength value of the other RRUs. That is, if the downlink mode adopts DRS demodulation, the BBU selects one RRU from the plurality of first RRUs according to the signal strength values of the plurality of first RRUs (the RRU is the signal strength value optimal) ) as the second RRU serving the terminal.
  • Steps 350 The BBU determines whether the uplink signal strength value is smaller than the first threshold, or whether the BBU determines whether the downlink quality value is less than the second threshold, or whether the BBU determines whether the uplink quality value is less than the third threshold.
  • step 360 if the uplink signal strength value is less than the first threshold, or the downlink quality value is less than the second threshold, or the uplink quality value is less than the third threshold, step 360 is performed; if the uplink signal strength value is greater than or equal to The first threshold, or the downlink quality value is greater than or equal to the second threshold, or the uplink quality value is greater than or equal to the third threshold, then step 370 is performed;
  • the uplink signal strength value, the downlink quality value, and the uplink quality value may be carried in the interference strength information.
  • the uplink signal strength value includes an uplink DMRS RSRP, an uplink SRS RSRP, and the like; and the downlink quality value includes a CQI that is fully combined and originally reported, or a filtered value thereof, or a fully joint subband.
  • the uplink quality value includes an uplink DMRS SINR and an uplink SRS SINR.
  • the first threshold is specifically a preset intensity threshold; the second threshold is specifically a preset first quality threshold; and the third threshold is specifically a preset second quality threshold.
  • Step 360 The BBU uses all the RRUs controlled by the BBU to perform resource scheduling on the terminal.
  • the BBU determines all RRUs controlled by itself, and uses all RRU pairs. Focus on resource scheduling.
  • Step 370 The BBU uses multiple first RRUs to perform resource scheduling on the terminal.
  • the BBU utilizes step 320. Determining a plurality of first RRUs, performing resource scheduling on the terminal.
  • step 330 when the BBU performs step 330, if the downlink mode is not using DRS demodulation, the BBU may not perform step 350-step 360, and the BBU may also not adopt the downlink mode.
  • step 370 is directly performed, that is, if the downlink mode is not DRS demodulation, the BBU utilizes multiple first RRUs to perform resource scheduling on the terminal.
  • the BBU after obtaining the interference strength information of the terminal, the BBU first determines the downlink mode of the terminal, and if the downlink mode adopts DRS demodulation, the BBU uses the slave as the terminal.
  • a second RRU selected by the plurality of first RRUs of the service performs resource scheduling on the terminal;
  • the BBU uses a plurality of first RRUs serving the terminal to perform resource scheduling on the terminal;
  • the BBU utilizes all RRU pairs controlled by the BBU.
  • the terminal performs resource scheduling
  • the BBU utilizes the terminal service.
  • a plurality of first RRUs perform resource scheduling on the terminal.
  • the BBU can also perform the steps after obtaining the interference strength information of the terminal. 350, go to step 330 again. That is, the BBU determines any one of the uplink signal strength value, the downlink quality value, and the uplink quality value of the terminal included in the interference strength information, if the uplink signal strength value, the downlink quality value, and the uplink. If any of the path quality values is smaller than the corresponding threshold, the BBU performs resource scheduling on the terminal by using all the RRUs controlled by the BBU;
  • the BBU performs resource scheduling on the terminal by using the multiple first RRUs served by the terminal;
  • the BBU utilizes multiple services from the terminal.
  • a second RRU selected by the first RRU performs resource scheduling on the terminal;
  • the BBU utilizes multiple services for the terminal.
  • the first RRU performs resource scheduling on the terminal.
  • the method for determining the RRU is illustrated by way of example, but is not limited thereto in practical applications.
  • the third embodiment of the present invention further provides a device for determining a remote radio unit RRU.
  • the implementation structure is as shown in FIG. 4, and the method for determining the remote radio unit RRU in the foregoing first embodiment of the present invention is implemented.
  • the device includes the following units: a first unit 410 and a second unit 420.
  • the first unit 410 is configured to acquire interference strength information of the terminal, where the interference strength information includes a downlink mode of the terminal;
  • the second unit 420 is configured to perform resource scheduling on the terminal by using a second RRU when the downlink mode is demodulated by dedicated pilot DRS, where the second RRU is from serving the terminal. Selected from the first RRU; or,
  • the second unit 420 when the downlink mode is not using the DRS demodulation, Performing resource scheduling on the terminal by using a third RRU, where the third RRU is based on an uplink signal strength value of the terminal, a downlink quality value of the terminal, and an uplink quality value of the terminal. Any one of them is ok.
  • the plurality of first RRUs are composed of the second RRU and other RRUs, and the signal strength value of the second RRU is greater than the signal strength value of the other RRUs.
  • the second unit 420 is further configured to: determine a signal strength value of each of the plurality of first RRUs, and determine a maximum value of the signal strength value of each of the first RRUs. And determining, by the first RRU corresponding to the maximum value, the second RRU.
  • the third RRU includes all RRUs controlled by the device.
  • the third RRU includes a plurality of first RRUs serving the terminal.
  • the second unit 420 is further configured to:
  • the first unit is further configured to acquire location information of the terminal.
  • the second unit 420 is further configured to determine, according to location information and interference strength information of the terminal, a plurality of first RRUs serving the terminal.
  • the device is a baseband unit BBU or a base station.
  • the device acquires the terminal interference strength information, and if the downlink mode of the terminal included in the interference strength information is demodulated by using dedicated pilot DRS, The device uses the second RRU to perform resource scheduling on the terminal, and the second RRU is that the device selects from multiple first RRUs serving the terminal; or, for example, If the downlink mode is not DRS demodulation, the device performs resource scheduling on the terminal by using the third RRU, where the third RRU is the uplink signal strength value, the downlink quality value, and the uplink quality of the device according to the terminal. Any one of the values is determined.
  • the method of using multiple RRU joint transmission in the prior art is solved, which leads to a problem of serious system throughput loss in the case of sufficient multi-user traffic.
  • the device in the embodiment of the present invention determines the RRU of the service according to the downlink mode of each terminal, thereby obtaining higher user performance reliability and system efficiency, and also improving resource utilization. , system throughput.
  • the device for determining the remote radio unit RRU provided by the second embodiment of the present invention may be implemented as follows to implement the method for determining the remote radio unit RRU in the first embodiment and the second embodiment of the present invention.
  • the device for determining the remote radio unit RRU includes: a network interface 510, a processor 520, and a memory 530.
  • System bus 540 is used to connect network interface 510, processor 520, and memory 530.
  • the network interface 510 is used for interactive communication with the terminal and the RRU.
  • Memory 530 can be a persistent storage, such as a hard drive and flash memory, and memory 530 is used to store applications that include instructions for enabling processor 520 to access and execute the following instructions:
  • the interference strength information includes a downlink mode of the terminal
  • resource scheduling is performed on the terminal by using a second RRU, where the second RRU is selected from a plurality of first RRUs serving the terminal.
  • the plurality of first RRUs are composed of the second RRU and other RRUs,
  • the signal strength value of the second RRU is greater than the signal strength value of the other RRU.
  • the application stored by the memory 530 further includes instructions that can be used to cause the processor 520 to perform the following process:
  • the third RRU includes All RRUs controlled by the device.
  • the third RRU includes a plurality of first RRUs serving the terminal.
  • the application stored by the memory 530 further includes instructions that can be used to cause the processor 520 to perform the following process:
  • the application stored by the memory 530 further includes instructions that can be used to cause the processor 520 to perform the following process:
  • the device is a baseband unit BBU or a base station.
  • the device acquires the terminal interference strength information, and if the downlink mode of the terminal included in the interference strength information is demodulated by using dedicated pilot DRS, The device uses the second RRU to perform resource scheduling on the terminal, and the second RRU is that the device selects from multiple first RRUs serving the terminal; or, for example, If the downlink mode is not DRS demodulation, the device performs resource scheduling on the terminal by using the third RRU, where the third RRU is the uplink signal strength value, the downlink quality value, and the uplink quality of the device according to the terminal. Any one of the values is determined.
  • the method of using multiple RRU joint transmission in the prior art is solved, which leads to a problem of serious system throughput loss in the case of sufficient multi-user traffic.
  • the device in the embodiment of the present invention determines the RRU of the service according to the downlink mode of each terminal, thereby obtaining higher user performance reliability and system efficiency, and also improving resource utilization. , system throughput.
  • the steps of a method or algorithm described in connection with the embodiments disclosed herein can be implemented in hardware, a software module executed by a processor, or a combination of both.
  • the software module can be placed in random access memory (RAM), memory, read only memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, removable disk, CD-ROM, or technical field. Any other form of storage medium known.

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

本发明实施例涉及一种确定拉选射频单元RRU的方法与设备。所述方法包括：基带单元BBU获取终端的干扰强度信息，所述干扰强度信息包括所述终端的下行链路模式；所述方法还包括：如果所述下行链路模式采用专用导频DRS解调，则所述BBU利用第二RRU对所述终端进行资源调度，所述第二RRU是所述BBU从为所述终端服务的多个第一RRU中选择出来的；或者，如果所述下行链路模式不是采用所述DRS解调，则所述BBU利用第三RRU对所述终端进行资源调度，其中，所述第三RRU是所述BBU根据所述终端的上行信号强度值、所述终端的下行链路质量值和所述终端的上行链路质量值中的任一项确定的。

Description

确定拉选射频单元RRU的方法与设备
本申请要求于2014年06月30日提交中国专利局、申请号为201410306364.2、发明名称为“确定拉选射频单元RRU的方法与设备”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
本发明涉及通讯领域，尤其涉及一种确定拉选射频单元RRU的方法与设备。
背景技术
当前，由于长期演进(Long Term Evaluation，简称：LTE)系统普遍采用同频组网的工作方式，使得各小区间的干扰很严重；尤其是在站点密度大的网络中，干扰尤为明显。
采用多个拉远射频单元(Remote Radio Unit，简称：RRU)共小区的技术，能够降低密集布站时的干扰并获得合并增益。所述多RRU共小区技术，具体为将多个RRU合并为一个小区并对所有终端进行联合发送的技术。
现有技术中，基站采用多RRU共小区技术对终端进行资源调度。具体过程如图1所示。基站将多个独立的RRU(例如RRU1、RRU2、RRU3)合并为一个逻辑小区，并在该小区中，多个独立的RRU的物理小区的标识(Physical Cell ID)相同。基站将小区中多个RRU调度在相同的时频资源上为某一终端同时发送相同的数据，使得原先彼此干扰的多个小区的信号变成多径叠加增强的信号，提升了小区的边缘信号干扰噪声比(Signal-to-Interference plus Noise Ratio，简称：SINR)，减少了相邻小区数量，明显减小了小区间同频 干扰，从而改善用户在小区边缘的业务体验。
但是，现有技术中采用的多RRU联合发送的方式也暴露出以下问题：在该技术下，基站对所有终端进行资源调度时，均采用多RRU联合发送的方式，但由于不存在各RRU间的资源复用，因此，在多用户业务量充足的情况下系统吞吐量损失严重。
发明内容
本发明实施例公开了一种确定拉远射频单元RRU的方法与设备，以解决现有技术中采用多RRU联合发送的方式，导致在多用户业务量充足的情况下系统吞吐量损失严重的问题。
在第一方面，本发明实施例提供了一种确定拉远射频单元RRU的方法，所述方法包括：
基带单元BBU获取终端的干扰强度信息，所述干扰强度信息包括所述终端的下行链路模式；
所述方法还包括：
如果所述下行链路模式采用专用导频DRS解调，则所述BBU利用第二RRU对所述终端进行资源调度，所述第二RRU是所述BBU从为所述终端服务的多个第一RRU中选择出来的；或者，如果所述下行链路模式不是采用所述DRS解调，则所述BBU利用第三RRU对所述终端进行资源调度，其中，所述第三RRU是所述BBU根据所述终端的上行信号强度值、所述终端的下行链路质量值和所述终端的上行链路质量值中的任一项确定的。
在第一种可能的实现方式中，所述多个第一RRU由所述第二RRU和其他RRU组成，所述第二RRU的信号强度值大于所述其他RRU的信号强度值。
在第二种可能的实现方式中，如果所述上行信号强度值小于第一阈值，或者，所述下行链路质量值小于第二阈值，或者，所述上行链路质量值小于第三阈值，则所述第三RRU包括所述BBU控制的全部RRU。
在第三种可能的实现方式中，如果所述上行信号强度值大于或者等于第一阈值，或者，所述下行链路质量值大于或者等于第二阈值，或者，所述上行链路质量值大于或者等于第三阈值，则所述第三RRU包括为所述终端服务的多个第一RRU。
结合第一方面的第二种或者第三种可能的实现方式，在第四种可能的实现方式中，所述方法还包括：
所述BBU判断所述上行信号强度值是否小于第一阈值，或者，
所述BBU判断所述下行链路质量值是否小于第二阈值，或者，
所述BBU判断所述上行链路质量值是否小于第三阈值。
结合第一方面或第一方面的第一种、第二种、第三种、第四种可能的实现方式，在第五种可能的实现方式中，所述方法还包括：
所述BBU获取所述终端的位置信息，并根据所述终端的位置信息和干扰强度信息，确定为所述终端服务的多个第一RRU。
在第二方面，本发明实施例提供了一种确定拉远射频单元的设备，包括：第一单元和第二单元，其中：
所述第一单元，用于获取终端的干扰强度信息，所述干扰强度信息包括所述终端的下行链路模式；
所述第二单元，用于所述下行链路模式采用专用导频DRS解调时，利用第二RRU对所述终端进行资源调度，所述第二RRU是从为所述终端服务的多个第一RRU中选择出来的；或者，
所述第二单元，用于所述下行链路模式不是采用所述DRS解调时，利用第三RRU对所述终端进行资源调度，其中，所述第三RRU是根据所述终端的上行信号强度值、所述终端的下行链路质量值和所述终端的上行链路质量值中的任一项确定的。
在第一种可能的实现方式中，所述多个第一RRU由所述第二RRU和其他RRU组成，所述第二RRU的信号强度值大于所述其他RRU的信号强度值。
结合第二方面的第一种可能的实现方式，在第二种可能的实现方式中，所述第二单元还用于，判断所述多个第一RRU中的每个第一RRU的信号强度值，并确定所述每个第一RRU的信号强度值的最大值，将所述最大值对应的第一RRU确定为所述第二RRU。
在第三种可能的实现方式中，如果所述上行信号强度值小于第一阈值，或者，所述下行链路质量值小于第二阈值，或者，所述上行链路质量值小于第三阈值，则所述第三RRU包括所述设备控制的全部RRU。
结合第二方面的第三种可能的实现方式，在第四种可能的实现方式中，如果所述上行信号强度值大于或者等于第一阈值，或者，所述下行链路质量值大于或者等于第二阈值，或者，所述上行链路质量值大于或者等于第三阈值，则所述第三RRU包括为所述终端服务的多个第一RRU。
结合第二方面的第三种或者第四种可能的实现方式，在第五种可能的实现方式中，所述第二单元还用于，
判断所述上行信号强度值是否小于第一阈值，或者，
判断所述下行链路质量值是否小于第二阈值，或者，
判断所述上行链路质量值是否小于第三阈值。
结合第二方面或第二方面的第一种、第二种、第三种、第四种、第五种可能的实现方式，在第六种可能的实现方式中，所述第一单元还用于，获取所述终端的位置信息；
所述第二单元还用于，根据所述终端的位置信息和干扰强度信息，确定为所述终端服务的多个第一RRU。
结合第二方面或第二方面的第一种、第二种、第三种、第四种、第五种、第六种可能的实现方式，在第七种可能的实现方式中，所述设备为基带单元BBU或者为基站。
因此，通过应用本发明实施例提供的一种确定拉远射频单元RRU的方法与设备，BBU获取终端干扰强度信息，如果干扰强度信息包括的终端的下行 链路模式采用专用导频DRS解调，则BBU利用第二RRU对终端进行资源调度，第二RRU是BBU从为终端服务的多个第一RRU选择出来的；或者，如果下行链路模式不是采用DRS解调，则BBU利用第三RRU对终端进行资源调度，第三RRU是BBU根据终端的上行信号强度值、下行链路质量值和上行链路质量值中的任一项确定的。解决了现有技术中采用多RRU联合发送的方式，导致在多用户业务量充足的情况下系统吞吐量损失严重的问题。由于本发明实施例中BBU根据每个终端的下行链路模式行进判断后，为终端确定服务的RRU，进而可获得更高的用户性能可靠度和系统效率，同时也提高了资源利用率、系统吞吐量。
附图说明
图1为现有技术中多RRU共小区技术对终端进行资源调度示意图；
图2为本发明实施例一提供的确定拉选射频单元RRU的方法流程图；
图3为本发明实施例二提供的确定拉选射频单元RRU的方法流程图；
图4为本发明实施例三提供的一种确定拉选射频单元RRU的设备结构示意图；
图5为本发明实施例四提供的确定拉选射频单元RRU的设备硬件结构示意图。
具体实施方式
为使本发明实施例的目的、技术方案和优点更加清楚，下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚地描述，显然，所描述的实施例是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做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。
为便于对本发明实施例的理解，下面将结合附图以具体实施例做进一步 的解释说明，实施例并不构成对本发明实施例的限定。
实施例一
下面以图2为例详细说明本发明实施例一提供的确定拉选射频单元RRU的方法，图2为本发明实施例一提供的确定拉选射频单元RRU的方法流程图，在实际组网中，基站包括BBU和与BBU连接的多个RRU。在本发明实施例中实施主体为基站中的BBU或者为基站，下面以执行主体为BBU为例进行说明。如图2所示，该实施例具体包括以下步骤：
步骤210、基带单元BBU获取终端的干扰强度信息，所述干扰响度信息包括所述终端的下行链路模式。
具体地，BBU获取终端的干扰强度信息。所述干扰强度信息具体为终端自行测量获取后，发送给BBU；或者，所述干扰强度信息具体为BBU自行测量获取。
其中，所述终端的下行链路模式为传输模式(Transmission Mode，简称：TM)TM7、TM8、TM9、TM10等。
步骤220、根据所述下行链路模式是否采用专用导频DRS解调，确定第二RRU或第三RRU，并利用第二RRU或第三RRU对所述终端进行资源调度。例如，如果所述下行链路模式采用专用导频DRS解调，则所述BBU利用第二RRU对所述终端进行资源调度，所述第二RRU是所述BBU从为所述终端服务的多个第一RRU中选择出来的；或者，如果所述下行链路模式不是采用所述DRS解调，则所述BBU利用第三RRU对所述终端进行资源调度，其中，所述第三RRU是所述BBU根据所述终端的上行信号强度值、所述终端的下行链路质量值和所述终端的上行链路质量值中的任一项确定的。
具体地，BBU获取下行链路模式后，BBU判断下行链路模式是否采用专用导频(Dedicated Reference Signal，简称：DRS)解调，如果下行链路模式采用DRS解调，则BBU利用第二RRU对终端进行资源调度，其中，所述第二RRU是BBU从为终端服务的多个第一RRU中选择出来的。或者，
如果下行链路模式不是采用DRS解调，则BBU利用第三RRU对终端进行资源调度，其中，所述第三RRU是BBU根据终端的上行信号强度值、终端的下行链路质量值和终端的上行链路质量值中的任一项确定的。
所述上行信号强度值、下行链路质量值和上行链路质量值可携带在干扰强度信息中。
其中，作为示例而非限定，所述上行信号强度值包括上行解调参考信号(Demodulation Reference Signal，简称：DMRS)参考信号接收功率(Reference Signal Received Power，简称：RSRP)、上行探测参考信号(Sounding Reference Signal，简称：SRS)RSRP等；所述下行链路质量值包括全联合全带原始上报的信道质量指示(Channel Quality Indicator，简称：CQI)或其滤波值、或全联合子带原始上报的CQI或其滤波值、用户的调整后的CQI及其滤波值、用户的调整后频谱效率等；所述上行链路质量值包括上行DMRS SINR、上行SRS SINR。
可选地，在本发明实施例中，所述多个第一RRU由第二RRU和其他RRU组成，所述第二RRU的信号强度值大于所述其他RRU的信号强度值。也就是说，如果下行链路模式采用DRS解调，则BBU根据多个第一RRU的信号强度值，从多个第一RRU中，选择出1个RRU(该RRU为信号强度值最优的)作为为终端服务的第二RRU。
可选地，如果下行链路模式不是采用DRS解调，BBU判断上行信号强度值是否小于第一阈值，或者，BBU判断下行链路质量值是否小于第二阈值，或者，BBU判断上行链路质量值是否小于第三阈值。
其中，所述第一阈值具体为预设的强度阈值；所述第二阈值具体为预设的第一质量阈值；所述第三阈值具体为预设的第二质量阈值。
可选地，如果上行信号强度值小于强度阈值，或者下行链路质量值小于第一质量阈值，或者上行链路质量值小于第二质量阈值，则第三RRU包括BBU控制的全部RRU，也就是说，BBU确定BBU控制的全部RRU；利用 全部RRU，BBU对终端进行资源调度。
可选地，如果上行信号强度值大于或者等于强度阈值，或者，下行链路质量值大于或者等于第一质量阈值，或者，上行链路质量值大于或者等于第二质量阈值，则第三RRU包括为终端服务的多个第一RRU，也就是说，BBU利用多个第一RRU对终端进行资源调度。
可选地，在本发明实施例步骤210中，BBU还获取终端的位置信息，BBU根据获取的位置信息和干扰轻度信息确定为终端服务的多个第一RRU。
可以理解的是，在本发明实施例中，所述为终端服务的多个第一RRU具体是指向终端发送数据、信号或者接收终端发送的数据、信号的RRU。
可选地，在本发明实施例中，如果下行链路模式不是采用DRS解调，BBU除了利用第三RRU对终端进行资源调度之外，BBU还可利用多个第一RRU，对终端进行资源调度。需要说明的是，在前述实施例中，BBU在获取到终端的干扰强度信息后，先对终端的下行链路模式进行判断，如果下行链路模式采用DRS解调，则BBU利用从为终端服务的多个第一RRU中选择出来的一个第二RRU对终端进行资源调度；
或者，如果下行链路模式不是采用DRS解调，BBU利用为终端服务的多个第一RRU，对终端进行资源调度；
或者，如果下行链路模式不是采用DRS解调，且如果上行信号强度值、下行链路质量值、上行链路质量值中的任一小于其对应的阈值，则BBU利用控制的全部RRU对终端进行资源调度；
或者，如果下行链路模式不是采用DRS解调，且如果上行信号强度值、下行链路质量值、上行链路质量值中的任一大于或等于其对应的阈值，则BBU利用为终端服务的多个第一RRU对终端进行资源调度。
在实际应用中，BBU还可在获取到终端的干扰强度信息后，先对干扰强度信息包括的终端的上行信号强度值、下行链路质量值、上行链路质量值中的任一进行判断，如果上行信号强度值、下行链路质量值、上行链路质量值 中的任一小于其对应的阈值，则BBU利用控制的全部RRU对终端进行资源调度；
或者，如果上行信号强度值、下行链路质量值、上行链路质量值中的任一大于或等于其对应的阈值，则BBU利用为终端服务的多个第一RRU对终端进行资源调度；
或者，如果上行信号强度值、下行链路质量值、上行链路质量值中的任一大于或等于其对应的阈值，且下行链路模式采用DRS解调，则BBU利用从为终端服务的多个第一RRU中选择出来的一个第二RRU对终端进行资源调度；
或者，如果上行信号强度值、下行链路质量值、上行链路质量值中的任一大于或等于其对应的阈值，且下行链路模式不是采用DRS解调，BBU利用为终端服务的多个第一RRU，对终端进行资源调度。
可以理解的是，在本发明实施例中，以举例的方式说明确定RRU的方法，但在实际应用中并不限制于此。
因此，通过应用本发明实施例提供的确定拉远射频单元RRU的方法，BBU获取终端干扰强度信息，如果干扰强度信息包括的终端的下行链路模式采用专用导频DRS解调，则BBU利用第二RRU对终端进行资源调度，第二RRU是BBU从为终端服务的多个第一RRU选择出来的；或者，如果下行链路模式不是采用DRS解调，则BBU利用第三RRU对终端进行资源调度，第三RRU是BBU根据终端的上行信号强度值、下行链路质量值和上行链路质量值中的任一项确定的。解决了现有技术中采用多RRU联合发送的方式，导致在多用户业务量充足的情况下系统吞吐量损失严重的问题。由于本发明实施例中BBU根据每个终端的下行链路模式行进判断后，为终端确定服务的RRU，进而可获得更高的用户性能可靠度和系统效率，同时也提高了资源利用率、系统吞吐量。
为便于对本发明实施例的理解，下面将结合附图以具体实施例做进一步 的解释说明，实施例并不构成对本发明实施例的限定。
实施例二
为便于对本发明实施例的理解，下面将结合附图以具体实施例做进一步的解释说明，实施例并不构成对本发明实施例的限定。
下面以图3为例详细说明本发明实施例二提供的确定拉选射频单元RRU的方法，图3为本发明实施例二提供的确定拉选射频单元RRU的方法流程图，在实际组网中，基站包括BBU和与BBU连接的多个RRU。在本发明实施例中实施主体为基站中的BBU或者为基站，下面以执行主体为BBU为例进行说明。如图3所示，该实施例具体包括以下步骤：
步骤310、基带单元BBU获取终端的位置信息和干扰强度信息，所述干扰强度信息包括所述终端的下行链路模式。
具体地，BBU获取终端的位置信息和干扰强度信息。所述位置信息和干扰强度信息具体为终端自行测量获取后，发送给BBU；或者，所述位置信息和干扰强度信息具体为BBU自行测量获取。
其中，所述终端的下行链路模式为TM7、TM8、TM9、TM10等。
步骤320、BBU根据获取的位置信息和干扰轻度信息确定为终端服务的多个第一RRU。
具体地，BBU根据获取的位置信息和干扰强度信息，确定为终端服务的至少1个第一拉远射频单元。
可以理解的是，在本发明实施例中，所述为终端服务的多个第一RRU具体是指向终端发送数据、信号或者接收终端发送的数据、信号的RRU。
步骤330、BBU判断下行链路模式是否采用专用导频DRS解调。
具体地，如果下行链路模式采用DRS解调，则执行步骤340；如果下行链路模式不是采用DRS解调，则执行步骤350。
步骤340、BBU利用第二RRU对所述终端进行资源调度，所述第二RRU是所述BBU从为所述终端服务的多个第一RRU中选择出来的。
具体地，BBU获取下行链路模式后，BBU判断下行链路模式是否采用DRS解调，如果下行链路模式采用DRS解调，则BBU利用第二RRU对终端进行资源调度，其中，所述第二RRU是BBU从为终端服务的多个第一RRU中选择出来的。
进一步地，在本发明实施例中，所述多个第一RRU由第二RRU和其他RRU组成，所述第二RRU的信号强度值大于所述其他RRU的信号强度值。也就是说，如果下行链路模式采用DRS解调，则BBU根据多个第一RRU的信号强度值，从多个第一RRU中，选择出1个RRU(该RRU为信号强度值最优的)作为为终端服务的第二RRU。
步骤350、BBU判断上行信号强度值是否小于第一阈值，或者，BBU判断下行链路质量值是否小于第二阈值，或者，BBU判断上行链路质量值是否小于第三阈值。
具体地，如果上行信号强度值小于第一阈值，或者，下行链路质量值小于第二阈值，或者，上行链路质量值小于第三阈值，则执行步骤360；如果上行信号强度值大于或等于第一阈值，或者，下行链路质量值大于或等于第二阈值，或者，上行链路质量值大于或等于第三阈值，则执行步骤370；
在本发明实施了中，所述上行信号强度值、下行链路质量值和上行链路质量值可携带在干扰强度信息中。
其中，作为示例而非限定，所述上行信号强度值包括上行DMRS RSRP、上行SRS RSRP等；所述下行链路质量值包括全联合全带原始上报的CQI或其滤波值、或全联合子带原始上报的CQI或其滤波值、用户的调整后的CQI及其滤波值、用户的调整后频谱效率等；所述上行链路质量值包括上行DMRS SINR、上行SRS SINR。
其中，所述第一阈值具体为预设的强度阈值；所述第二阈值具体为预设的第一质量阈值；所述第三阈值具体为预设的第二质量阈值。
步骤360、BBU利用BBU控制的全部RRU，对终端进行资源调度。
具体地，如果上行信号强度值小于强度阈值，或者下行链路质量值小于第一质量阈值，或者上行链路质量值小于第二质量阈值，则BBU确定自身控制的全部RRU，利用全部的RRU对重点进行资源调度。
步骤370、BBU利用多个第一RRU，对终端进行资源调度。
具体地，如果上行信号强度值大于或者等于强度阈值，或者，下行链路质量值大于或者等于第一质量阈值，或者，上行链路质量值大于或者等于第二质量阈值，则BBU利用步骤320中确定的多个第一RRU，对终端进行资源调度。
需要说明的是，在本发明实施例中，BBU在执行步骤330时，如果下行链路模式不是采用DRS解调，BBU可不再执行步骤350-步骤360,BBU还可在下行链路模式不是采用DRS解调时，直接执行步骤370，也就是说如果下行链路模式不是采用DRS解调，BBU利用多个第一RRU，对终端进行资源调度。
需要说明的是，在前述实施例步骤中，BBU在获取到终端的干扰强度信息后，先对终端的下行链路模式进行判断，如果下行链路模式采用DRS解调，则BBU利用从为终端服务的多个第一RRU中选择出来的一个第二RRU对终端进行资源调度；
或者，如果下行链路模式不是采用DRS解调，BBU利用为终端服务的多个第一RRU，对终端进行资源调度；
或者，如果下行链路模式不是采用DRS解调，且如果上行信号强度值、下行链路质量值、上行链路质量值中的任一小于其对应的阈值，则BBU利用BBU控制的全部RRU对终端进行资源调度；
或者，如果下行链路模式不是采用DRS解调，且如果上行信号强度值、下行链路质量值、上行链路质量值中的任一大于或等于其对应的阈值，则BBU利用为终端服务的多个第一RRU对终端进行资源调度。
在实际应用中，BBU还可在获取到终端的干扰强度信息后，先执行步骤 350,再执行步骤330。也就是说，BBU对干扰强度信息包括的终端的上行信号强度值、下行链路质量值、上行链路质量值中的任一进行判断，如果上行信号强度值、下行链路质量值、上行链路质量值中的任一小于其对应的阈值，则BBU利用BBU控制的全部RRU对终端进行资源调度；
或者，如果上行信号强度值、下行链路质量值、上行链路质量值中的任一大于或等于其对应的阈值，则BBU利用为终端服务的多个第一RRU对终端进行资源调度；
或者，如果上行信号强度值、下行链路质量值、上行链路质量值中的任一大于或等于其对应的阈值，且下行链路模式采用DRS解调，则BBU利用从为终端服务的多个第一RRU中选择出来的一个第二RRU对终端进行资源调度；
或者，如果上行信号强度值、下行链路质量值、上行链路质量值中的任一大于或等于其对应的阈值，且下行链路模式不是采用DRS解调，BBU利用为终端服务的多个第一RRU，对终端进行资源调度。
可以理解的是，在本发明实施例中，以举例的方式说明确定RRU的方法，但在实际应用中并不限制于此。
实施例三
相应地，本发明实施例三还提供了一种确定拉远射频单元RRU的设备，其实现结构如图4所示，用于实现本发明前述实施例一中的确定拉远射频单元RRU的方法。所述设备包括以下单元：第一单元410和第二单元420。
所述第一单元410，用于获取终端的干扰强度信息，所述干扰强度信息包括所述终端的下行链路模式；
所述第二单元420，用于所述下行链路模式采用专用导频DRS解调时，利用第二RRU对所述终端进行资源调度，所述第二RRU是从为所述终端服务的多个第一RRU中选择出来的；或者，
所述第二单元420，用于所述下行链路模式不是采用所述DRS解调时， 利用第三RRU对所述终端进行资源调度，其中，所述第三RRU是根据所述终端的上行信号强度值、所述终端的下行链路质量值和所述终端的上行链路质量值中的任一项确定的。
可选地，所述多个第一RRU由所述第二RRU和其他RRU组成，所述第二RRU的信号强度值大于所述其他RRU的信号强度值。
可选地，所述第二单元420还用于，判断所述多个第一RRU中的每个第一RRU的信号强度值，并确定所述每个第一RRU的信号强度值的最大值，将所述最大值对应的第一RRU确定为所述第二RRU。
可选地，如果所述上行信号强度值小于第一阈值，或者，所述下行链路质量值小于第二阈值，或者，所述上行链路质量值小于第三阈值，则所述第三RRU包括所述设备控制的全部RRU。
可选地，如果所述上行信号强度值大于或者等于第一阈值，或者，所述下行链路质量值大于或者等于第二阈值，或者，所述上行链路质量值大于或者等于第三阈值，则所述第三RRU包括为所述终端服务的多个第一RRU。
可选地，所述第二单元420还用于，
判断所述上行信号强度值是否小于第一阈值，或者，
判断所述下行链路质量值是否小于第二阈值，或者，
判断所述上行链路质量值是否小于第三阈值。
可选地，所述第一单元还用于，获取所述终端的位置信息；
所述第二单元420还用于，根据所述终端的位置信息和干扰强度信息，确定为所述终端服务的多个第一RRU。
可选地，所述设备为基带单元BBU或者为基站。
因此，通过应用本发明实施例提供的确定拉远射频单元RRU的设备，所述设备获取终端干扰强度信息，如果干扰强度信息包括的终端的下行链路模式采用专用导频DRS解调，则所述设备利用第二RRU对终端进行资源调度，第二RRU是所述设备从为终端服务的多个第一RRU选择出来的；或者，如 果下行链路模式不是采用DRS解调，则所述设备利用第三RRU对终端进行资源调度，第三RRU是所述设备根据终端的上行信号强度值、下行链路质量值和上行链路质量值中的任一项确定的。解决了现有技术中采用多RRU联合发送的方式，导致在多用户业务量充足的情况下系统吞吐量损失严重的问题。由于本发明实施例中所述设备根据每个终端的下行链路模式行进判断后，为终端确定服务的RRU，进而可获得更高的用户性能可靠度和系统效率，同时也提高了资源利用率、系统吞吐量。
实施例四
另外，本发明实施例二提供的确定拉远射频单元RRU的设备还可以采用的实现方式如下，用以实现前述本发明实施例一、实施例二中的确定拉远射频单元RRU的方法。如图5所示，所述确定拉远射频单元RRU的设备包括：网络接口510、处理器520和存储器530。系统总线540用于连接网络接口510、处理器520和存储器530。
网络接口510用于与终端、RRU进行交互通信。
存储器530可以是永久存储器，例如硬盘驱动器和闪存，存储器530用于存储应用程序，所述应用程序包括可用于使处理器520访问并执行如下指令：
获取终端的干扰强度信息，所述干扰强度信息包括所述终端的下行链路模式；
如果所述下行链路模式采用专用导频DRS解调，则利用第二RRU对所述终端进行资源调度，所述第二RRU是从为所述终端服务的多个第一RRU中选择出来的；或者，如果所述下行链路模式不是采用所述DRS解调，则利用第三RRU对所述终端进行资源调度，其中，所述第三RRU是根据所述终端的上行信号强度值、所述终端的下行链路质量值和所述终端的上行链路质量值中的任一项确定的。
进一步地，所述多个第一RRU由所述第二RRU和其他RRU组成，所述 第二RRU的信号强度值大于所述其他RRU的信号强度值。
进一步地，所述存储器530存储的应用程序还包括可用于使处理器520执行以下过程的指令：
判断所述多个第一RRU中的每个第一RRU的信号强度值，并确定所述每个第一RRU的信号强度值的最大值，将所述最大值对应的第一RRU确定为所述第二RRU。
进一步地，如果所述上行信号强度值小于第一阈值，或者，所述下行链路质量值小于第二阈值，或者，所述上行链路质量值小于第三阈值，则所述第三RRU包括所述设备控制的全部RRU。
进一步地，如果所述上行信号强度值大于或者等于第一阈值，或者，所述下行链路质量值大于或者等于第二阈值，或者，所述上行链路质量值大于或者等于第三阈值，则所述第三RRU包括为所述终端服务的多个第一RRU。
进一步地，所述存储器530存储的应用程序还包括可用于使处理器520执行以下过程的指令：
判断所述上行信号强度值是否小于第一阈值，或者，
判断所述下行链路质量值是否小于第二阈值，或者，
判断所述上行链路质量值是否小于第三阈值。
进一步地，所述存储器530存储的应用程序还包括可用于使处理器520执行以下过程的指令：
获取所述终端的位置信息，并根据所述终端的位置信息和干扰强度信息，确定为所述终端服务的多个第一RRU。
进一步地，所述设备为基带单元BBU或者为基站。
因此，通过应用本发明实施例提供的确定拉远射频单元RRU的设备，所述设备获取终端干扰强度信息，如果干扰强度信息包括的终端的下行链路模式采用专用导频DRS解调，则所述设备利用第二RRU对终端进行资源调度，第二RRU是所述设备从为终端服务的多个第一RRU选择出来的；或者，如 果下行链路模式不是采用DRS解调，则所述设备利用第三RRU对终端进行资源调度，第三RRU是所述设备根据终端的上行信号强度值、下行链路质量值和上行链路质量值中的任一项确定的。解决了现有技术中采用多RRU联合发送的方式，导致在多用户业务量充足的情况下系统吞吐量损失严重的问题。由于本发明实施例中所述设备根据每个终端的下行链路模式行进判断后，为终端确定服务的RRU，进而可获得更高的用户性能可靠度和系统效率，同时也提高了资源利用率、系统吞吐量。
专业人员应该还可以进一步意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、计算机软件或者二者的结合来实现，为了清楚地说明硬件和软件的可互换性，在上述说明中已经按照功能一般性地描述了各示例的组成及步骤。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本发明的范围。
结合本文中所公开的实施例描述的方法或算法的步骤可以用硬件、处理器执行的软件模块，或者二者的结合来实施。软件模块可以置于随机存储器(RAM)、内存、只读存储器(ROM)、电可编程ROM、电可擦除可编程ROM、寄存器、硬盘、可移动磁盘、CD-ROM、或技术领域内所公知的任意其它形式的存储介质中。
以上所述的具体实施方式，对本发明的目的、技术方案和有益效果进行了进一步详细说明，所应理解的是，以上所述仅为本发明的具体实施方式而已，并不用于限定本发明的保护范围，凡在本发明的精神和原则之内，所做的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (14)

  1. 一种确定拉远射频单元RRU的方法，其特征在于，所述方法包括：
    基带单元BBU获取终端的干扰强度信息，所述干扰强度信息包括所述终端的下行链路模式；
    所述方法还包括：
    如果所述下行链路模式采用专用导频DRS解调，则所述BBU利用第二RRU对所述终端进行资源调度，所述第二RRU是所述BBU从为所述终端服务的多个第一RRU中选择出来的；或者，如果所述下行链路模式不是采用所述DRS解调，则所述BBU利用第三RRU对所述终端进行资源调度，其中，所述第三RRU是所述BBU根据所述终端的上行信号强度值、所述终端的下行链路质量值和所述终端的上行链路质量值中的任一项确定的。
  2. 根据权利要求1所述的方法，其特征在于，所述多个第一RRU由所述第二RRU和其他RRU组成，所述第二RRU的信号强度值大于所述其他RRU的信号强度值。
  3. 根据权利要求1所述的方法，其特征在于，
    如果所述上行信号强度值小于第一阈值，或者，所述下行链路质量值小于第二阈值，或者，所述上行链路质量值小于第三阈值，则所述第三RRU包括所述BBU控制的全部RRU。
  4. 根据权利要求1所述的方法，其特征在于，
    如果所述上行信号强度值大于或者等于第一阈值，或者，所述下行链路质量值大于或者等于第二阈值，或者，所述上行链路质量值大于或者等于第三阈值，则所述第三RRU包括为所述终端服务的多个第一RRU。
  5. 根据权利要求3或4所述的方法，其特征在于，所述方法还包括：
    所述BBU判断所述上行信号强度值是否小于第一阈值，或者，
    所述BBU判断所述下行链路质量值是否小于第二阈值，或者，
    所述BBU判断所述上行链路质量值是否小于第三阈值。
  6. 根据权利要求1至5任一项所述的方法，其特征在于，所述方法还包括：
    所述BBU获取所述终端的位置信息，并根据所述终端的位置信息和干扰强度信息，确定为所述终端服务的多个第一RRU。
  7. 一种确定拉远射频单元RRU的设备，其特征在于，包括第一单元和第二单元，其中：
    所述第一单元，用于获取终端的干扰强度信息，所述干扰强度信息包括所述终端的下行链路模式；
    所述第二单元，用于所述下行链路模式采用专用导频DRS解调时，利用第二RRU对所述终端进行资源调度，所述第二RRU是从为所述终端服务的多个第一RRU中选择出来的；或者，
    所述第二单元，用于所述下行链路模式不是采用所述DRS解调时，利用第三RRU对所述终端进行资源调度，其中，所述第三RRU是根据所述终端的上行信号强度值、所述终端的下行链路质量值和所述终端的上行链路质量值中的任一项确定的。
  8. 根据权利要求7所述的设备，其特征在于，所述多个第一RRU由所述第二RRU和其他RRU组成，所述第二RRU的信号强度值大于所述其他RRU的信号强度值。
  9. 根据权利要求8所述的设备，其特征在于，
    所述第二单元还用于，判断所述多个第一RRU中的每个第一RRU的信号强度值，并确定所述每个第一RRU的信号强度值的最大值，将所述最大值对应的第一RRU确定为所述第二RRU。
  10. 根据权利要求7所述的设备，其特征在于，
    如果所述上行信号强度值小于第一阈值，或者，所述下行链路质量值小于第二阈值，或者，所述上行链路质量值小于第三阈值，则所述第三RRU包 括所述设备控制的全部RRU。
  11. 根据权利要求10所述的设备，其特征在于，
    如果所述上行信号强度值大于或者等于第一阈值，或者，所述下行链路质量值大于或者等于第二阈值，或者，所述上行链路质量值大于或者等于第三阈值，则所述第三RRU包括为所述终端服务的多个第一RRU。
  12. 根据权利要求10或11所述的设备，其特征在于，所述第二单元还用于，
    判断所述上行信号强度值是否小于第一阈值，或者，
    判断所述下行链路质量值是否小于第二阈值，或者，
    判断所述上行链路质量值是否小于第三阈值。
  13. 根据权利要求7至12任一项所述的设备，其特征在于，所述第一单元还用于，获取所述终端的位置信息；
    所述第二单元还用于，根据所述终端的位置信息和干扰强度信息，确定为所述终端服务的多个第一RRU。
  14. 根据权利要求7至13任一项所述的设备，其特征在于，所述设备为基带单元BBU。
PCT/CN2015/078749 2014-06-30 2015-05-12 确定拉远射频单元rru的方法与设备 WO2016000491A1 (zh)

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