WO2017008257A1 - Procédé d'ordonnancement de faisceau d'ondes et dispositif correspondant - Google Patents

Procédé d'ordonnancement de faisceau d'ondes et dispositif correspondant Download PDF

Info

Publication number
WO2017008257A1
WO2017008257A1 PCT/CN2015/084005 CN2015084005W WO2017008257A1 WO 2017008257 A1 WO2017008257 A1 WO 2017008257A1 CN 2015084005 W CN2015084005 W CN 2015084005W WO 2017008257 A1 WO2017008257 A1 WO 2017008257A1
Authority
WO
WIPO (PCT)
Prior art keywords
user equipment
scheduling
schedulable
signal strength
scheduled
Prior art date
Application number
PCT/CN2015/084005
Other languages
English (en)
Chinese (zh)
Inventor
黄磊
李宏
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to PCT/CN2015/084005 priority Critical patent/WO2017008257A1/fr
Publication of WO2017008257A1 publication Critical patent/WO2017008257A1/fr

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/24—Cell structures
    • H04W16/28—Cell structures using beam steering

Definitions

  • Embodiments of the present invention relate to the field of communications technologies, and, more particularly, to a beam scheduling method and related devices.
  • the high frequency band represented by the millimeter wave band is mainly used in indoor short-range communication scenarios.
  • the high frequency band is easy to implement a large-scale array antenna, and can achieve a large antenna gain by beam-forming technology, thereby effectively compensating for its high path loss, which is also a high frequency band in an outdoor scene.
  • the application of medium to long distance transmission offers the possibility.
  • the beam width formed by it is necessarily narrow. For example, at a frequency of 28 GHz, the beam width is about 7 degrees, and at a frequency of 72 GHz, the beam width is about 3 degrees.
  • the cell coverage may be pre-divided into N (eg, 64) beam coverage areas, and any beam coverage area corresponds to a fixed beam.
  • M for example: 4
  • M is a positive integer smaller than N, for example, 4
  • beams are scheduled at a certain time to achieve optimal system capacity.
  • the most intuitive scheduling mode is the Round-Robin mode, that is, N beams are scheduled to be rotated in time according to a certain logical sequence.
  • the polling method is used to schedule the beam, and the interference problem is very large.
  • the interference caused the system performance to fall back by nearly 20 dB, and the 72 GHz system is slightly better, but its interference also leads to the system.
  • the system performance has been backed out by 10dB.
  • the intra-station interference includes the interference caused by the simultaneously scheduled beams in the same cell, and also includes the interference caused by the beams scheduled by different cells in the same small station.
  • Embodiments of the present invention provide a beam scheduling method and related equipment, which can reduce beam interference of a high frequency communication system.
  • a beam scheduling method comprising: receiving channel quality information sent by each candidate scheduling user equipment UE; calculating a proportional fairness factor of each candidate scheduling user equipment UE; and selecting a target according to a proportional fairness factor of each candidate scheduling UE Scheduling the UE; and selecting a scheduling beam for the target scheduling UE according to the channel quality information.
  • the calculating a fairness factor of each candidate user equipment UE specifically includes:
  • R k (t) is the throughput at which the user equipment k can be scheduled at the current time t
  • the selecting the target scheduling UE according to the proportional fairness factor of each candidate scheduling UE specifically includes:
  • the user equipment with the largest proportional fairness factor f k (t) is selected as the target scheduling user equipment.
  • the channel quality information includes at least one of the following information: a useful signal strength received by the candidate scheduling user equipment, an interference signal strength of the scheduled beam to the schedulable user equipment corresponding to the schedulable beam, and a signal to interference and noise ratio.
  • the step of selecting the scheduling target scheduling beam according to the channel quality information specifically includes:
  • the useful signal strength of the schedulable beam b i to its corresponding schedulable user equipment u i is expressed as
  • the interference signal strength of the schedulable user equipment u i corresponding to the schedulable beam b i of the beam b k in the scheduled beam set B is expressed as b k ⁇ B;
  • N 0 is the noise value received by the schedulable user equipment u i .
  • the channel quality information includes at least one of the following information: a useful signal strength received by the candidate scheduling user equipment, an interference signal strength of the schedulable beam to the scheduled user equipment corresponding to the scheduled beam, and a signal to noise ratio.
  • the step of selecting the scheduling target scheduling beam according to the channel quality information specifically includes:
  • the useful signal strength of the schedulable beam b i to its corresponding schedulable user equipment u i is expressed as
  • the schedulable beam b i represents the interference signal strength of the user equipment u k corresponding to the scheduled beam b k as b k ⁇ B;
  • N 0 is the noise value received by the schedulable user equipment u i .
  • a network side device comprising: a receiving unit, configured to receive channel quality information sent by each candidate scheduling user equipment UE; a calculating unit, configured to calculate a proportional fairness factor of each candidate scheduling user equipment UE; and a selecting unit, configured to use each The proportional fairness factor of the candidate scheduling UE selects the target scheduling UE; and the scheduling unit schedules the UE scheduling beam for the target according to the channel quality information.
  • calculation unit is based on a formula Calculating a proportional fairness factor of the user equipment k;
  • R k (t) is the throughput at which the user equipment k can be scheduled at the current time t
  • the selecting unit is specifically configured to: select a user equipment with a maximum proportional fairness factor f k (t) as a target scheduling user equipment.
  • the channel quality information includes at least one of the following information: candidate scheduling user setting The useful signal strength of the standby, the interference signal strength of the schedulable user equipment corresponding to the schedulable beam of the scheduled beam pair, and the signal to interference and noise ratio.
  • scheduling unit is specifically configured to:
  • the useful signal strength of the schedulable beam b i to its corresponding schedulable user equipment u i is expressed as
  • the interference signal strength of the schedulable user equipment u i corresponding to the schedulable beam b i of the beam b k in the scheduled beam set B is expressed as b k ⁇ B;
  • N 0 is the noise value received by the schedulable user equipment u i .
  • the channel quality information includes at least one of the following information: a useful signal strength received by the candidate scheduling user equipment, an interference signal strength of the schedulable beam to the scheduled user equipment corresponding to the scheduled beam, and a signal to noise ratio.
  • scheduling unit is specifically configured to:
  • the useful signal strength of the schedulable beam b i to its corresponding schedulable user equipment u i is expressed as
  • the schedulable beam b i represents the interference signal strength of the user equipment u k corresponding to the scheduled beam b k as b k ⁇ B;
  • N 0 is the noise value received by the schedulable user equipment u i .
  • a beam scheduling method includes: calculating, by a cell, a proportional fairness factor for a schedulable user equipment; feeding back a user equipment ID having a maximum proportional fairness factor in each beam and a proportional fairness factor value thereof to a beam scheduling function entity; and performing cell beam scheduling function The entity feeds back the received signal measurement information of the user equipment; the beam scheduling function entity performs beam scheduling according to the measurement information.
  • calculating, by the cell, a proportional fairness factor for the schedulable user equipment includes:
  • R k (t) is the throughput at which the user equipment k can be scheduled at the current time t
  • the signal measurement information includes at least one of the following information: a useful signal strength received by the candidate scheduling user equipment, an interference signal strength of the scheduled beam to the schedulable user equipment corresponding to the schedulable beam, and a signal to interference and noise ratio.
  • the step of selecting the scheduling target scheduling beam according to the channel quality information specifically includes:
  • the useful signal strength of the schedulable beam b i to its corresponding schedulable user equipment u i is expressed as
  • the interference signal strength of the schedulable user equipment u i corresponding to the schedulable beam b i of the beam b k in the scheduled beam set B is expressed as b k ⁇ B;
  • N 0 is the noise value received by the schedulable user equipment u i .
  • the channel quality information includes at least one of the following information: a useful signal strength received by the candidate scheduling user equipment, an interference signal strength of the schedulable beam to the scheduled user equipment corresponding to the scheduled beam, and a signal to noise ratio.
  • the step of selecting the scheduling target scheduling beam according to the channel quality information specifically includes:
  • the useful signal strength of the schedulable beam b i to its corresponding schedulable user equipment u i is expressed as
  • the schedulable beam b i represents the interference signal strength of the user equipment u k corresponding to the scheduled beam b k as b k ⁇ B;
  • N 0 is the noise value received by the schedulable user equipment u i .
  • selecting a scheduling user equipment by using a proportional fairness factor can ensure fairness of scheduling of a certain user equipment, and selecting a scheduling beam for the user equipment according to channel quality information, thereby helping to reduce intra-station interference in the high-frequency small station and improving Communication quality.
  • FIG. 1 is a schematic diagram of cell division of a high frequency station in accordance with an embodiment of the present invention.
  • Embodiment 2 is a signaling flowchart of a beam scheduling method in Embodiment 3 of the present invention.
  • FIG. 3 is a flowchart of a beam scheduling method in Embodiment 4 of the present invention.
  • Embodiment 4 is a functional block diagram of a network side device in Embodiment 4 of the present invention.
  • FIG. 5 is a schematic diagram of the composition of a network side device in Embodiment 4 of the present invention.
  • FIG. 6 is a flowchart of a beam scheduling method in Embodiment 5 of the present invention.
  • the invention provides a beam scheduling method capable of reducing beam interference in a station.
  • the beam width generated by the high frequency antenna is narrow, for example, at a frequency of 28 GHz, the beam width is about 7 degrees, and at a frequency of 72 GHz, the beam width is about 3 degrees.
  • the above M beams cannot cover the entire area of one cell. Therefore, the coverage space of the entire cell may be divided into N subspaces according to the beam width, and each subspace is covered by one beam, where N is an integer not less than M.
  • the scheduling module of each cell schedules the user equipments in the M beam coverage according to the relevant algorithm, and implements data transmission between the high frequency small station and the user equipment.
  • a beam scheduling function entity BSE Beam Scheduling Entity
  • the beam scheduling function entity performs a beam scheduling algorithm to coordinate beam scheduling in multiple cells in the high frequency station.
  • Embodiment 1 of the present invention is a diagrammatic representation of Embodiment 1 of the present invention.
  • R k (t) is the throughput at which the user equipment k can be scheduled at the current time t
  • the average throughput obtained by user equipment k For a period of time before time t, such as the previous 10 ms (microseconds) of time t, the average throughput obtained by user equipment k.
  • the beam scheduling function entity BSE sorts the proportional fair factors of all user equipments in the coverage of the high-frequency station, and selects the user equipment u 0 with the highest proportion fairness factor as the initial scheduling user equipment.
  • all user equipments have already performed cell and beam selection by default, and any user equipment has a unique beam corresponding thereto.
  • U 0 is selected the user equipment, the user equipment may select the appropriate beam u 0 b 0 as the initial schedule beam.
  • the scheduled beam set B can be expressed as:
  • Each cell selects a user device with a proportional fair sub-maximum as the schedulable user device of the current beam in each schedulable beam. For example, if there are multiple user devices in the coverage of a schedulable beam, the user with the largest proportional fairness factor is selected.
  • the device acts as a schedulable user equipment of the schedulable beam; the user equipment with the largest proportion of fairness factor may also be in the overlapping area of two or more beams.
  • the useful signal strength of the schedulable beam b i to its corresponding schedulable user equipment u i is expressed as
  • the interference signal strength of the schedulable user equipment u i corresponding to the schedulable beam b i of the beam b k within the scheduled beam set is expressed as Where b k ⁇ B, i is the index number of the schedulable beam or schedulable user equipment, and k is the index number of the scheduled beam.
  • the scheduling beam b i can be selected according to the following objective function.
  • b i belongs to a schedulable beam set
  • the beam in the middle, N 0 is the noise value received by the schedulable user equipment u i .
  • the value of i can be calculated by using the objective function, so that the beam b i is selected for scheduling, so that the user equipment u i can obtain a better Signal to Interference and Noise Ratio (SINR).
  • SINR Signal to Interference and Noise Ratio
  • the modulated beam set B is added with a beam b i
  • the steerable beam set is The beam b i that has been scheduled is removed.
  • the beam scheduling process is repeated, and if the upper limit has been reached, the schedulable beam set is updated again:
  • C i is the cell where the scheduling beam b i is located
  • It is a set of schedulable beams in the cell C i . It is determined whether the number of scheduled beams of all cells reaches the upper limit M. If the upper limit is not reached, the beam scheduling process is repeated. If the upper limit has been reached, the scheduling process ends.
  • the beam in the scheduling beam set B is the beam that needs to be scheduled this time.
  • Embodiment 2 of the present invention is a diagrammatic representation of Embodiment 2 of the present invention.
  • the proportional fairness factor f of the user equipment k connected to the high-frequency station at the scheduling time t is calculated:
  • R k (t) is the throughput at which the user equipment k can be scheduled at the current time t
  • the average throughput obtained by user equipment k For a period of time before time t, such as the previous 10 ms (microseconds) of time t, the average throughput obtained by user equipment k.
  • the beam scheduling function entity BSE sorts the proportional fair factors of all user equipments in the coverage of the high-frequency station, and selects the user equipment u 0 with the highest proportion fairness factor as the initial scheduling user equipment.
  • all user equipments have already performed cell and beam selection by default, and any user equipment has a unique beam corresponding thereto.
  • U 0 is selected the user equipment, the user equipment may select the appropriate beam u 0 b 0 as the initial schedule beam.
  • the scheduled beam set B can be expressed as:
  • Each cell selects a user equipment with the largest proportional fairness factor as the schedulable user equipment of the current beam in each schedulable beam. For example, if there are multiple user equipments in the coverage of a schedulable beam, the user with the largest proportion fairness factor is selected.
  • the device acts as a schedulable user equipment of the schedulable beam; the user equipment with the largest proportion of fairness factor may also be in the overlapping area of two or more beams.
  • the useful signal strength of the schedulable beam b i to its corresponding schedulable user equipment u i is expressed as
  • the interference signal strength of the schedulable beam b i to the scheduled user equipment u k is expressed as Where b k ⁇ B, the schedulable user equipment corresponding to the beam b k is u k , i is the index number of the schedulable beam or the schedulable user equipment, and k is the index number of the scheduled beam or the scheduled user equipment.
  • the scheduling beam b i can be selected according to the following objective function.
  • b i belongs to a schedulable beam set The beam in the middle.
  • the objective function can be used to calculate the value of i, so that the beam b i is selected for scheduling, so that the user equipment u i can obtain a better signal to noise and noise ratio (SLNR).
  • the modulated beam set B is added with a beam b i
  • the steerable beam set is The removal has been scheduled b i .
  • the beam scheduling process is repeated, and if the upper limit has been reached, the schedulable beam set is updated again:
  • C i is the cell where the scheduling beam b i is located
  • the set of beams that have been scheduled in cell C i It is determined whether the number of scheduled beams of all cells reaches the upper limit M. If the upper limit is not reached, the beam scheduling process is repeated. If the upper limit has been reached, the scheduling process ends. Dispatched beam set The beam in the middle is the beam that needs to be scheduled.
  • Embodiment 3 of the present invention is a diagrammatic representation of Embodiment 3 of the present invention.
  • the beam scheduling function entity BSE needs to acquire signal strength information of the transmission beam to the corresponding scheduling user equipment.
  • the acquisition of signal strength information can be obtained by the following signaling procedure.
  • Step 1 The user equipment detects the measurement signals sent by the beams in the plurality of cells in the high frequency small station, and records the strength of the received measurement signals.
  • Step 2 The user equipment quantizes the measured signal strengths of the received multiple beams, and feeds back to the corresponding cell by using uplink signaling.
  • Step 3 Calculate a proportional fairness factor of the schedulable user equipment in the cell, and feed back the user equipment ID (Identification) and the proportional fairness factor value of each of the intra-beam proportional fairness factors to the beam scheduling function entity.
  • the high-frequency base station system includes multiple (for example, six) co-located cells, each of which is equivalent to one sub-base station, and can calculate the proportion of schedulable user equipment in the cell. Fairness factor; the high-frequency base station system can also uniformly calculate the proportional fairness factor of schedulable user equipment within its coverage.
  • Step 4 The cell feeds back the measured signal strength information of the user equipment to the beam scheduling function entity.
  • Step 5 The beam scheduling function entity BSE performs beam scheduling according to the algorithm in Embodiment 1 or 2.
  • step 6 the beam scheduling function entity notifies each cell of the scheduling result.
  • the beam scheduling function entity BSE may be disposed in a certain cell, or may be disposed in parallel with each cell in the high frequency base station system. Each cell and BSE are part of a high frequency base station system.
  • the beam scheduling method provided by the embodiment of the present invention ensures fairness by selecting an initial user equipment and selecting a scheduling user equipment in each beam, and performing centralized scheduling on beams of multiple cells in the small station to make the selected beam Interference is small.
  • Embodiment 4 is a diagrammatic representation of Embodiment 4:
  • a fourth embodiment of the present invention provides a scheduling method for reducing intra-station beam interference, including:
  • the network side device receives channel quality information sent by each candidate scheduling user equipment UE.
  • the high-frequency station includes a beam scheduling function entity BSE (Beam Scheduling Entity), and the beam scheduling function entity performs a beam scheduling algorithm to coordinate beam scheduling in multiple cells in the high-frequency station.
  • the channel quality information may include: a useful signal strength received by the candidate scheduling user equipment, an interference signal strength of the schedulable user equipment corresponding to the schedulable beam of the scheduled beam, a signal to interference and noise ratio, and a schedulable beam corresponding to the scheduled beam.
  • the network side device calculates a proportional fairness factor of each candidate scheduling user equipment UE.
  • the calculating a fairness factor of each candidate user equipment UE specifically includes: according to a formula Calculating a proportional fairness factor of the user equipment k; wherein R k (t) is a throughput at which the user equipment k can be scheduled at the current time t, The average throughput obtained by the user equipment k for a predetermined period of time before the time t;
  • the network side device selects a target scheduling UE according to a proportional fairness factor of each candidate scheduling UE.
  • the selecting the target scheduling UE according to the proportional fairness factor of each candidate scheduling UE specifically includes: selecting a user equipment with the largest proportional fairness factor f k (t) as the target scheduling user equipment;
  • S14 Select a scheduling beam for the target scheduling UE according to the channel quality information.
  • the step of selecting a scheduling target scheduling beam according to the channel quality information specifically includes:
  • the useful signal strength of the schedulable beam b i to its corresponding schedulable user equipment u i is expressed as
  • the interference signal strength of the schedulable user equipment u i corresponding to the schedulable beam b i of the beam b k in the scheduled beam set B is expressed as b k ⁇ B;
  • N 0 is the noise value may schedule a user equipment received by u i, u i to the user equipment selected by the beam b i is scheduled set of beams CITIC has better noise and better beam.
  • the step of selecting the scheduling target scheduling beam according to the channel quality information specifically includes:
  • the useful signal strength of the schedulable beam b i to its corresponding schedulable user equipment u i is expressed as
  • the schedulable beam b i represents the interference signal strength of the user equipment u k corresponding to the scheduled beam b k as b k ⁇ B;
  • N 0 is the noise value received by the schedulable user equipment u i .
  • a network side device 100 includes:
  • the receiving unit 101 is configured to receive channel quality information sent by each candidate scheduling user equipment UE.
  • the channel quality information may include: a useful signal strength received by the candidate scheduling user equipment, and a schedulable user equipment corresponding to the schedulable beam of the scheduled beam pair. Interference signal strength, signal to interference and noise ratio, interference signal strength, signal leakage noise ratio, etc. of the scheduled user equipment corresponding to the scheduled beam to the scheduled beam;
  • the calculating unit 102 is configured to calculate a proportional fairness factor of each candidate scheduling user equipment UE; the calculating unit 102 is according to a formula Calculating a proportional fairness factor of the user equipment k;
  • R k (t) is the throughput at which the user equipment k can be scheduled at the current time t, The average throughput obtained by the user equipment k for a predetermined period of time before the time t;
  • the selecting unit 103 is configured to select a target scheduling UE according to a proportional fairness factor of each candidate scheduling UE.
  • the selecting unit 102 is specifically configured to: select a user equipment with a maximum proportional fairness factor f k (t) as a target scheduling user equipment;
  • the scheduling unit 104 schedules the UE scheduling beam for the target according to the channel quality information.
  • the scheduling unit 104 may be specifically configured to:
  • the useful signal strength of the schedulable beam b i to its corresponding schedulable user equipment u i is expressed as
  • the interference signal strength of the schedulable user equipment u i corresponding to the schedulable beam b i of the beam b k in the scheduled beam set B is expressed as b k ⁇ B;
  • N 0 is the noise value may schedule a user equipment received by u i, u i to the user equipment selected by the beam b i is scheduled set of beams CITIC has better noise and better beam.
  • the scheduling unit 104 may also be specifically configured to:
  • the useful signal strength of the schedulable beam b i to its corresponding schedulable user equipment u i is expressed as
  • the schedulable beam b i represents the interference signal strength of the user equipment u k corresponding to the scheduled beam b k as b k ⁇ B;
  • N 0 is the noise value may schedule a user equipment received by u i, u i to the user equipment selected by the beam b i is scheduled set of beams
  • the CITIC leakage noise is better.
  • FIG. 5 is a schematic block diagram of a network side device 200 according to an embodiment of the present invention.
  • the network side device 200 may include a receiving unit 201, a transmitting unit 202, a processor 203, and a memory 204.
  • the receiving unit 201 can be configured to receive an uplink signal; the sending unit 202 can be configured to send a downlink signal.
  • the receiving unit 201 may be configured to receive channel quality information sent by each candidate scheduling user equipment UE, where the channel quality information may include: a wanted signal strength received by the candidate scheduling user equipment, and a scheduled beam corresponding to the schedulable beam.
  • the processor 203 is configured to perform the following operations:
  • Selecting a target scheduling UE according to a proportional fairness factor of each candidate scheduling UE for example, selecting a user equipment with a largest proportional fairness factor f k (t) as a target scheduling user equipment;
  • the processor 203 may be specifically configured to:
  • the useful signal strength of the schedulable beam b i to its corresponding schedulable user equipment u i is expressed as
  • the interference signal strength of the schedulable user equipment u i corresponding to the schedulable beam b i of the beam b k in the scheduled beam set B is expressed as b k ⁇ B;
  • N 0 is the noise value may schedule a user equipment received by u i, u i to the user equipment selected by the beam b i is scheduled set of beams CITIC has better noise and better beam.
  • the processor 203 is further specifically configured to:
  • the useful signal strength of the schedulable beam b i to its corresponding schedulable user equipment u i is expressed as
  • the schedulable beam b i represents the interference signal strength of the user equipment u k corresponding to the scheduled beam b k as b k ⁇ B; noise value N is received by the UE, user equipment u i b i is selected by the beam may be scheduled set of beams
  • the CITIC leakage noise is better.
  • the memory 204 can be used to store data and programs required by the processor 203 to perform the operations described above.
  • the processor 901 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the foregoing method may be completed by an integrated logic circuit of hardware in the processor 901 or an instruction in a form of software.
  • the processor 901 may be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), or a Field Programmable Gate Array (FPGA). ) or other programmable logic devices, discrete gates or transistor logic devices, Discrete hardware components.
  • DSP digital signal processor
  • ASIC application-specific integrated circuit
  • FPGA Field Programmable Gate Array
  • the methods, steps, and logical block diagrams disclosed in the embodiments of the present invention may be implemented or carried out.
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • the steps of the method disclosed in the embodiments of the present invention may be directly implemented by the hardware decoding processor, or may be performed by a combination of hardware and software modules in the decoding processor.
  • the software module can be located in a random access memory (RAM), a flash memory, a read-only memory (ROM), a programmable read only memory or an electrically erasable programmable memory, a register, etc.
  • RAM random access memory
  • ROM read-only memory
  • programmable read only memory or an electrically erasable programmable memory
  • register etc.
  • the storage medium is located in the memory 903, and the processor 901 reads the instructions in the memory 903 and completes the steps of the above method in combination with its hardware.
  • Embodiment 5 is a diagrammatic representation of Embodiment 5:
  • a fifth embodiment of the present invention provides a scheduling method for reducing intra-station beam interference, including:
  • the cell calculates a proportional fairness factor for the schedulable user equipment, and the calculating, by the cell, the proportional fairness factor for the schedulable user equipment, specifically:
  • R k (t) is the throughput at which the user equipment k can be scheduled at the current time t
  • the cell feeds back the received signal measurement information of the user equipment to the beam scheduling function entity.
  • the measurement information may include: a useful signal strength received by the candidate scheduling user equipment, and a schedulable user equipment corresponding to the schedulable beam of the scheduled beam. Interference signal strength, signal to interference and noise ratio, interference signal strength, signal leakage noise ratio, etc. of the scheduled user equipment corresponding to the scheduled beam;
  • a beam scheduling function entity performs beam scheduling according to the measurement information.
  • the step of selecting the scheduling target scheduling beam according to the channel quality information may specifically include:
  • the useful signal strength of the schedulable beam b i to its corresponding schedulable user equipment u i is expressed as
  • the interference signal strength of the schedulable user equipment u i corresponding to the schedulable beam b i of the beam b k in the scheduled beam set B is expressed as b k ⁇ B;
  • N 0 is the noise value may schedule a user equipment received by u i, u i to the user equipment selected by the beam b i is scheduled set of beams CITIC has better noise and better beam.
  • the step of selecting the scheduling target scheduling beam according to the channel quality information may further include:
  • the useful signal strength of the schedulable beam b i to its corresponding schedulable user equipment u i is expressed as
  • the schedulable beam b i represents the interference signal strength of the user equipment u k corresponding to the scheduled beam b k as b k ⁇ B;
  • N 0 is the noise value may schedule a user equipment received by u i, u i to the user equipment selected by the beam b i is scheduled set of beams
  • the CITIC leakage noise is better.
  • FIGS. 7-10 show the performance of the proposed algorithm in the 28 GHz system and the 72 GHz system, respectively.
  • Figure 7 shows the spectral efficiency comparison of the 28 GHz system. It can be found that the algorithm proposed by the present invention has nearly 120% performance improvement corresponding to the baseline polling algorithm.
  • FIG. 8 is a comparison of edge spectral efficiency of a 28 GHz system. It can be found that the SINR-based algorithm proposed by the present invention can achieve 50% edge spectral efficiency improvement, and the SLNR-based algorithm can obtain 70% edge spectral efficiency improvement.
  • Figure 9 is a comparison of the spectral efficiency of the 72 GHz system. It can be found that the algorithm proposed by the present invention has nearly 70% performance improvement corresponding to the baseline polling algorithm.
  • Figure 10 shows the edge spectral efficiency comparison of the 72 GHz system. It can be found that the proposed algorithm can achieve 250% edge spectral efficiency improvement.
  • the disclosed systems, devices, and methods may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the functions may be stored in a computer readable storage medium if implemented in the form of a software functional unit and sold or used as a standalone product.
  • the technical solution of the present invention which is essential or contributes to the prior art, or a part of the technical solution, may be embodied in the form of a software product, which is stored in a storage medium, including
  • the instructions are used to cause a computer device (which may be a personal computer, server, or network device, etc.) or a processor to perform all or part of the steps of the methods described in various embodiments of the present invention.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like. .

Landscapes

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

Abstract

L'invention concerne un procédé d'ordonnancement pour la réduction des interférences de faisceaux d'ondes dans une station. Le procédé comprend les étapes consistant à : recevoir des informations de qualité de canal envoyées par chaque équipement utilisateur (UE) à ordonnancement candidat ; calculer un facteur d'équité proportionnelle de chaque équipement utilisateur (UE) à ordonnancement candidat ; sélectionner un UE à ordonnancement cible selon le facteur d'équité proportionnelle de chaque équipement utilisateur (UE) à ordonnancement candidat ; et sélectionner un faisceau d'ondes d'ordonnancement pour l'UE à ordonnancement cible selon les informations de qualité de canal. Le procédé d'ordonnancement de faisceau d'ondes selon la présente invention peut être appliqué à un système de communication haute fréquence, et peut réduire les interférences de faisceaux d'ondes et améliorer la qualité de la communication.
PCT/CN2015/084005 2015-07-14 2015-07-14 Procédé d'ordonnancement de faisceau d'ondes et dispositif correspondant WO2017008257A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2015/084005 WO2017008257A1 (fr) 2015-07-14 2015-07-14 Procédé d'ordonnancement de faisceau d'ondes et dispositif correspondant

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2015/084005 WO2017008257A1 (fr) 2015-07-14 2015-07-14 Procédé d'ordonnancement de faisceau d'ondes et dispositif correspondant

Publications (1)

Publication Number Publication Date
WO2017008257A1 true WO2017008257A1 (fr) 2017-01-19

Family

ID=57756689

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2015/084005 WO2017008257A1 (fr) 2015-07-14 2015-07-14 Procédé d'ordonnancement de faisceau d'ondes et dispositif correspondant

Country Status (1)

Country Link
WO (1) WO2017008257A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11362719B2 (en) 2020-04-01 2022-06-14 Corning Research & Development Corporation Multi-level beam scheduling in a wireless communications circuit, particularly for a wireless communications system (WCS)
US11728875B2 (en) 2020-11-25 2023-08-15 Corning Research & Development Corporation Selective radio frequency (RF) reference beam radiation in a wireless communications system (WCS) based on user equipment (UE) locations

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102484509A (zh) * 2009-04-28 2012-05-30 华为技术有限公司 无线通信***中协调电子设备的***和方法
CN102857278A (zh) * 2011-06-30 2013-01-02 普天信息技术研究院有限公司 一种资源分配方法
CN102970106A (zh) * 2012-11-13 2013-03-13 北京航空航天大学 具***字约束的码字选择以及相应的信道质量估计方法
WO2013143069A1 (fr) * 2012-03-27 2013-10-03 Nec (China) Co., Ltd. Procédé et appareil pour une adaptation de liaison à boucle externe pour un système de communication sans fil
CN104396152A (zh) * 2012-06-22 2015-03-04 三星电子株式会社 在无线电通信***中使用波束形成的通信方法和装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102484509A (zh) * 2009-04-28 2012-05-30 华为技术有限公司 无线通信***中协调电子设备的***和方法
CN102857278A (zh) * 2011-06-30 2013-01-02 普天信息技术研究院有限公司 一种资源分配方法
WO2013143069A1 (fr) * 2012-03-27 2013-10-03 Nec (China) Co., Ltd. Procédé et appareil pour une adaptation de liaison à boucle externe pour un système de communication sans fil
CN104396152A (zh) * 2012-06-22 2015-03-04 三星电子株式会社 在无线电通信***中使用波束形成的通信方法和装置
CN102970106A (zh) * 2012-11-13 2013-03-13 北京航空航天大学 具***字约束的码字选择以及相应的信道质量估计方法

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11362719B2 (en) 2020-04-01 2022-06-14 Corning Research & Development Corporation Multi-level beam scheduling in a wireless communications circuit, particularly for a wireless communications system (WCS)
US11757518B2 (en) 2020-04-01 2023-09-12 Corning Research & Development Corporation Multi-level beam scheduling in a wireless communications circuit, particularly for a wireless communications system (WCS)
US11728875B2 (en) 2020-11-25 2023-08-15 Corning Research & Development Corporation Selective radio frequency (RF) reference beam radiation in a wireless communications system (WCS) based on user equipment (UE) locations

Similar Documents

Publication Publication Date Title
JP6670411B2 (ja) Ｍｉｍｏトレーニング方法及び無線装置
US9287958B2 (en) Method and apparatus for processing feedback information in wireless communication system supporting beamforming
CN106685504B (zh) 设备间协作方法及装置
US9338662B2 (en) Method for inter-beam interference reduction using cross polarization and method for transmitting/receiving signal
US10536229B2 (en) Method and device for providing coordinated communication of plurality of base stations in communication system to which beamforming is applied
US20230047993A1 (en) Surface element segmentation and node grouping for intelligent reflecting devices
EP2562941A1 (fr) Terminal mobile et son procédé de communication, contrôleur de station de base et son procédé de commande et système de transmission multi-coopératif utilisant celui-ci et procédé associé
US20190261384A1 (en) Frequency-selective beam management
US9258785B2 (en) Uplink signal transmitting and receiving method and device in a wireless communication system
US10680770B2 (en) Inter-cell beam coordination scheduling method and related device
CN113727365A (zh) 一种干扰控制方法及装置
US20230379035A1 (en) Multi-level beam scheduling in a wireless communications circuit, particularly for a wireless communications system (wcs)
US10582391B2 (en) Antenna system and antenna system adjustment method
WO2017008257A1 (fr) Procédé d'ordonnancement de faisceau d'ondes et dispositif correspondant
CN112312460A (zh) 测量上报的方法与装置
CN114430557A (zh) 一种波束管理方法及装置
CN110535579B (zh) 下行数据的传输方法、网络设备及终端
TWI730315B (zh) 無線裝置、波束回復方法及無線系統
KR101356897B1 (ko) 다중 빔 형성을 통한 다중 무선 접속 서비스 및 그 서비스를 제공하는 통신 장치
Boldi et al. Multi antenna techniques to improve energy efficiency in LTE radio access network
CN116634567B (zh) 波束管理方法、装置和智能超表面中继***
CN112994766B (zh) 一种波束传输方法及相关设备
US10251189B2 (en) Method and apparatus for coordinating resources among different networks
CN108770066B (zh) 一种毫米波多天线***中基于波束分组的终端调度方法
Chehri Utility-Based Beam Selection Algorithms for Sub-6 GHz Backhauls

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: 15897985

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: 15897985

Country of ref document: EP

Kind code of ref document: A1