WO2022095805A1 - 一种调度终端的方法及装置 - Google Patents

一种调度终端的方法及装置 Download PDF

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Publication number
WO2022095805A1
WO2022095805A1 PCT/CN2021/127605 CN2021127605W WO2022095805A1 WO 2022095805 A1 WO2022095805 A1 WO 2022095805A1 CN 2021127605 W CN2021127605 W CN 2021127605W WO 2022095805 A1 WO2022095805 A1 WO 2022095805A1
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Prior art keywords
terminal
cell
terminals
scheduled
group
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PCT/CN2021/127605
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English (en)
French (fr)
Inventor
陈翔
李越
白铂
张弓
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华为技术有限公司
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Priority to EP21888502.8A priority Critical patent/EP4228365A4/en
Publication of WO2022095805A1 publication Critical patent/WO2022095805A1/zh
Priority to US18/313,911 priority patent/US20230276426A1/en

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/50Allocation or scheduling criteria for wireless resources
    • H04W72/54Allocation or scheduling criteria for wireless resources based on quality criteria
    • H04W72/541Allocation or scheduling criteria for wireless resources based on quality criteria using the level of interference
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/50Allocation or scheduling criteria for wireless resources
    • H04W72/54Allocation or scheduling criteria for wireless resources based on quality criteria
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/022Site diversity; Macro-diversity
    • H04B7/024Co-operative use of antennas of several sites, e.g. in co-ordinated multipoint or co-operative multiple-input multiple-output [MIMO] systems
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0617Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal for beam forming
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0686Hybrid systems, i.e. switching and simultaneous transmission
    • H04B7/0695Hybrid systems, i.e. switching and simultaneous transmission using beam selection
    • H04B7/06952Selecting one or more beams from a plurality of beams, e.g. beam training, management or sweeping
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/12Wireless traffic scheduling
    • H04W72/121Wireless traffic scheduling for groups of terminals or users
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/50Allocation or scheduling criteria for wireless resources
    • H04W72/56Allocation or scheduling criteria for wireless resources based on priority criteria
    • H04W72/566Allocation or scheduling criteria for wireless resources based on priority criteria of the information or information source or recipient

Definitions

  • the embodiments of the present application relate to the field of wireless communication technologies, and in particular, to a method and apparatus for scheduling terminals.
  • the mutual interference of wireless signals between the terminals in the cell and the terminals in the cell has always been a major problem that limits the spectrum efficiency of the current communication system.
  • beamforming as shown in the beamforming schematic diagram in Figure 1a
  • the downlink interference to the multi-terminals in the adjacent cells in the beam direction will be more serious, and the interference area will be scheduled with the schedule. It changes dynamically depending on the terminal.
  • Embodiments of the present application provide a method and apparatus for scheduling terminals, so as to reduce mutual interference between terminals.
  • a method for scheduling terminals wherein a centralized device obtains first information of multiple terminals; the multiple terminals include at least one terminal in a first cell and at least one terminal in a second cell; the multiple terminals include at least one terminal in a first cell and at least one terminal in a second cell; Each terminal is a terminal waiting to be scheduled on the first time-frequency resource; the first information is used to determine the mutual interference between any two terminals when they are scheduled on the first time-frequency resource.
  • the centralized device determines whether to allow the terminal of the first cell to be scheduled on the first time-frequency resource according to the mutual interference between the terminal of the first cell and the terminal of the second cell when they are scheduled on the first time-frequency resource and the terminal of the second cell.
  • the centralized device determines whether to allow scheduling of multiple terminals on the same time-frequency resource according to the interference between multiple terminals. In this way, when scheduling terminals, it is possible to select a part of the terminals to allow scheduling, and another part of the terminals not to allow scheduling, so as to avoid interference between terminals.
  • the centralized device may firstly group the multiple terminals according to the mutual interference when the multiple terminals are scheduled on the first time-frequency resource; wherein, for any terminal, The mutual interference between the terminal and the at least one first terminal when they are scheduled on the first time-frequency resource is greater than the mutual interference between the terminal and the second terminal when they are scheduled on the first time-frequency resource.
  • the terminal and the first terminal are located in the same group, and the terminal and the second terminal are located in different groups.
  • the centralized device performs the following processing for each group: if the group only includes the terminals of one cell, the terminals of the one cell in the group are allowed to be scheduled on the first time-frequency resource, and the one cell is the first time-frequency resource.
  • the group includes the third terminal of the first cell and the fourth terminal of the second cell
  • the third terminal of the first cell in the group is allowed to be scheduled on the first time-frequency resource
  • the third terminal of the first cell in the group is not allowed to be scheduled on the first time-frequency resource
  • the fourth terminal of the second cell in the group is scheduled on the first time-frequency resource; alternatively, the third terminal of the first cell in the group is not allowed to be scheduled on the first time-frequency resource, and the fourth terminal of the second cell.
  • the interference between terminals in one group is relatively large, and the interference between terminals in different groups is relatively small.
  • scheduling terminals terminals in only one cell in a group are allowed to be scheduled, and terminals in other cells are not allowed to be scheduled. Selecting the manner in this way can avoid simultaneous scheduling of terminals with relatively large interference between cells, thereby reducing mutual interference between terminals in the cells.
  • the centralized device sends first indication information to the scheduling device of the first cell, where the first indication information is used to indicate: terminals in the first cell that are allowed to be scheduled; and/or , the centralized device sends first indication information to the scheduling device of the second cell, where the first indication information is used to indicate: a terminal that is allowed to be scheduled in the second cell.
  • the first indication information may also be used to indicate: the group in which the terminal to be scheduled is allowed to belong.
  • the first indication information includes: an identifier of a terminal allowed to be scheduled in the cell and an identifier of a group where the terminal allowed to be scheduled is located.
  • the centralized device can also inform the scheduling device of the coarse-grained scheduling selection result at the cell level, and the scheduling device decides which terminal to schedule, which can also improve scheduling flexibility.
  • the centralized device may select at least one target terminal in each group of terminals that are allowed to be scheduled. Then, send second indication information to the scheduling device of the first cell, where the second indication information is used to instruct: to schedule the target terminal in the first cell; and/or, the centralized device to schedule the second cell
  • the device sends second indication information, where the second indication information is used to instruct: to schedule the target terminal in the second cell.
  • the interference between terminals in one group is relatively large, and the interference between terminals in different groups is relatively small.
  • scheduling terminals only a part of target terminals in a group are selected for scheduling, and the remaining terminals are not scheduled. This selection method can avoid simultaneous scheduling of terminals with greater interference to a certain extent, and can reduce mutual interference between terminals.
  • the centralized device selects at least one target terminal in each group of terminals allowed to be scheduled according to the scheduling priority of each terminal allowed to be scheduled.
  • the target terminal is the terminal with the highest or higher scheduling priority in the group where the target terminal is located.
  • the second indication information is further used to indicate: a second time-frequency resource corresponding to each target terminal; the second time-frequency resource is part or all of the first time-frequency resource , the respective second time-frequency resources corresponding to multiple target terminals in a group are different. Different second time-frequency resources are allocated to each target terminal for scheduling, so that even if multiple target terminals are scheduled, interference will not be generated during scheduling due to different time-frequency resources corresponding to each target terminal.
  • the first information includes but is not limited to one or more of the following: channel status, beam signal strength, received signal strength indication, reference signal received power, reference signal received quality, signal strength greater than or the identifier of the beam whose signal strength is less than or equal to the set threshold, and the identifier of the beam whose signal strength is less than or equal to the set threshold.
  • the first information further includes: scheduling priority.
  • a method for scheduling terminals receives first indication information from a centralized device, where the first indication information is used to indicate: terminals that are allowed to be scheduled and a group to which the terminals that are allowed to be scheduled belong. ; the scheduling device selects one or more terminals as target terminals from among the terminals allowed to be scheduled, and schedules the target terminals.
  • the scheduling device receives the coarse-grained scheduling selection results at the cell level from the centralized device, and the scheduling device decides which terminal in the cell to schedule, which can also improve scheduling flexibility.
  • the multiple target terminals belong to different groups. That is, for a cell, only one terminal of the cell is allowed to be scheduled in a group, which can avoid simultaneous scheduling of terminals with greater interference, thereby reducing mutual interference between terminals.
  • the terminal with the highest scheduling priority among the terminals that are allowed to be scheduled is the target terminal.
  • a method for scheduling terminals wherein a centralized device acquires first information of multiple terminals; the multiple terminals include at least one terminal in a first cell and at least one terminal in a second cell; the multiple terminals include at least one terminal in a first cell and at least one terminal in a second cell; Each terminal is a terminal waiting to be scheduled on the first time-frequency resource; the first information is used to determine the mutual interference between any two terminals when they are scheduled on the first time-frequency resource. Then, according to the mutual interference between the terminals of the first cell and the terminals of the second cell when they are scheduled on the first time-frequency resource, determine whether to schedule the terminal of the first cell and the terminal of the second cell on the first time-frequency resource. A terminal of the second cell.
  • the centralized device determines whether to schedule multiple terminals on the same time-frequency resource according to the interference between multiple terminals. In this way, when scheduling terminals, a part of the terminals may be selected for scheduling, and another part of the terminals may not be scheduled, so as to avoid interference between terminals.
  • the centralized device groups the multiple terminals according to mutual interference when the multiple terminals are scheduled on the first time-frequency resource; wherein, for any terminal, the The mutual interference between the terminal and at least one first terminal when they are scheduled on the first time-frequency resource is greater than the mutual interference between the terminal and the second terminal when they are scheduled on the first time-frequency resource, and the terminal The terminal is located in the same group as the first terminal, and the terminal is located in a different group from the second terminal. Then, in each group of terminals, at least one target terminal of the group is selected, and the target terminal is a scheduled terminal.
  • the interference between terminals in one group is relatively large, and the interference between terminals in different groups is relatively small.
  • scheduling terminals only a part of target terminals in a group are selected for scheduling, and the remaining terminals are not scheduled. This selection method can avoid simultaneous scheduling of terminals with greater interference to a certain extent, and can reduce mutual interference between terminals.
  • the centralized device may also send second indication information to the scheduling device of the first cell, where the second indication information is used to indicate: to schedule the target terminal in the first cell; and/or, The centralized device sends second indication information to the scheduling device of the second cell, where the second indication information is used to instruct: to schedule the target terminal in the second cell.
  • the second indication information is further used to indicate: a second time-frequency resource corresponding to each target terminal; the second time-frequency resource is part or all of the first time-frequency resource , the respective second time-frequency resources corresponding to multiple target terminals in a group are different. Different second time-frequency resources are allocated to each target terminal for scheduling, so that even if multiple target terminals are scheduled, interference will not be generated during scheduling due to different time-frequency resources corresponding to each target terminal.
  • the first information includes but is not limited to one or more of the following: channel status, beam signal strength, received signal strength indication, reference signal received power, reference signal received quality, signal strength greater than or the identifier of the beam whose signal strength is less than or equal to the set threshold, and the identifier of the beam whose signal strength is less than or equal to the set threshold.
  • the first information further includes: scheduling priority.
  • a method for scheduling a terminal where the scheduling device receives second indication information from a centralized device, where the second indication information is used to indicate: a target terminal for scheduling. Then, the scheduling device can schedule the target terminal.
  • the second indication information may include an identifier of the target terminal, and may also include a scheduling identifier.
  • a communication device in a fifth aspect, has the functions of implementing the first aspect and any possible implementation of the first aspect, or implementing the second aspect and any possible implementation of the second aspect. function, or realize the function in any possible implementation of the third aspect and the third aspect, or realize the function in any possible implementation of the fourth aspect and the fourth aspect.
  • These functions can be implemented by hardware or by executing corresponding software by hardware.
  • the hardware or software includes one or more functional modules corresponding to the above-mentioned functions.
  • a communication device including a processor and a memory; the memory is used to store computer program instructions; the processor is used to execute part or all of the computer program instructions in the memory, when all When some or all of the computer program instructions are executed, they are used to implement the functions of the centralized device in the method for realizing the above-mentioned first aspect and any possible implementation of the first aspect, or to realize any possible implementation of the above-mentioned second aspect and the second aspect.
  • the apparatus may further include a transceiver, which is configured to transmit a signal processed by the processor or receive a signal input to the processor.
  • the transceiver may perform the sending action or the receiving action performed by the centralized device in the method of the first aspect and any possible implementation of the first aspect; or, perform the scheduling in the method of the second aspect and any possible implementation of the second aspect.
  • the sending action or the receiving action performed by the scheduling device is scheduled.
  • a communication device including a processor; the processor is used to execute a computer program or instruction, and when the computer program or instruction is executed, it is used to implement the above-mentioned first aspect and the first aspect
  • the function of the centralized device in any possible implementation method, or the function of the scheduling device in any possible implementation method of the second aspect and the second aspect, or the third aspect and the third aspect.
  • the function of the device is centralized, or the function of the scheduling device in the method for implementing the fourth aspect and any possible implementation of the fourth aspect is implemented.
  • the computer program or instructions may be stored in the processor or in a memory coupled to the processor.
  • the memory may or may not be located in the communication device.
  • the apparatus further includes: a communication interface, where the communication interface is configured to send a signal processed by the processor, or receive a signal input to the processor.
  • the communication interface may perform the sending action or the receiving action performed by the centralized device in the first aspect and any possible implementation of the first aspect, or the sending action performed by the scheduling device in the second aspect and any possible implementation of the second aspect. or a receiving action, or performing a sending action or a receiving action performed by the centralized device in the third aspect and any possible implementation of the third aspect, or performing the sending action performed by the scheduling device in any possible implementation of the fourth aspect and the fourth aspect or receive action.
  • the present application provides a chip system, the chip system includes one or more processors (which may also be referred to as processing circuits), and the processors are electrically coupled with a memory (which may also be referred to as a storage medium). ; the memory may be located in the chip system or not in the chip system; the memory is used to store computer program instructions; the processor is used to execute part or all of the computer in the memory Program instructions, when some or all of the computer program instructions are executed, are used to realize the functions of the centralized device in the method of any possible implementation of the above-mentioned first aspect and the first aspect, or to realize the above-mentioned second aspect and the second aspect.
  • the chip system may further include an input-output interface, where the input-output interface is used to output a signal processed by the processor, or receive a signal input to the processor.
  • the input and output interface can perform the sending action or the receiving action performed by the centralized device in the first aspect and any possible implementation method of the first aspect; or, in the second aspect and any possible implementation method of the second aspect. scheduling the sending action or receiving action performed by the device; or, performing the sending action or receiving action performed by the centralized device in the third aspect and any possible implementation method of the third aspect; or, performing any one of the fourth aspect and the fourth aspect
  • the sending action or the receiving action performed by the scheduling device is scheduled.
  • the chip system may be composed of chips, or may include chips and other discrete devices.
  • a ninth aspect provides a computer-readable storage medium for storing a computer program, the computer program comprising instructions for implementing the functions in the first aspect and any possible implementation of the first aspect, or for implementing Instructions for implementing the functions of the second aspect and any possible implementation of the second aspect, or instructions for implementing the functions of the third aspect and any possible implementation of the third aspect, or for implementing any of the fourth and fourth aspects.
  • a computer-readable storage medium for storing a computer program when the computer program is executed by a computer, it can cause the computer to execute the first aspect and the centralized device in the method for any possible implementation of the first aspect a method for performing, or a method for scheduling device execution in any possible implementation of the second aspect and the second aspect, or a method for centralizing device execution in the method for performing any possible implementation of the third aspect and the third aspect, Or execute the method for scheduling device execution in the fourth aspect and any possible implementation of the fourth aspect.
  • a computer program product comprising: computer program code, when the computer program code is run on a computer, the computer is made to execute the first aspect and any possible possibility of the first aspect.
  • a communication system comprising a centralized device for performing the above-mentioned first aspect and any possible implementation method of the first aspect, and performing any of the above-mentioned second aspect and the second aspect.
  • a scheduling device in an implemented method.
  • the communication system includes a centralized device in the method for performing any possible implementation of the third aspect and the third aspect, and a scheduling device in the method for performing any possible implementation of the fourth aspect and the fourth aspect.
  • FIG. 1a is a schematic diagram of a beamforming provided in an embodiment of the present application.
  • FIG. 1b is a schematic diagram of a communication system architecture provided in an embodiment of the application.
  • FIGS. 2a, 2b, and 2c are schematic diagrams of application scenarios provided in the embodiments of the present application, respectively;
  • FIG. 3 is a schematic diagram of a process of scheduling terminals provided in an embodiment of the present application.
  • FIG. 4 is a schematic diagram of a process of scheduling terminals provided in an embodiment of the present application.
  • FIG. 5 is a schematic diagram of a grouping provided in an embodiment of the present application.
  • FIG. 6 is a schematic diagram of a process of scheduling terminals provided in an embodiment of the present application.
  • FIG. 7 is a structural diagram of an apparatus for scheduling a terminal provided in an embodiment of the present application.
  • FIG. 8 is a structural diagram of an apparatus for scheduling a terminal provided in an embodiment of the present application.
  • system architecture of the method for scheduling terminals provided by the embodiments of the present application. It is understandable that the system architecture described in the embodiments of the present application is to more clearly describe the technical solutions of the embodiments of the present application, and does not constitute a limitation on the technical solutions provided by the embodiments of the present application.
  • WLAN wireless local area network
  • LTE long term evolution
  • LTE frequency division duplex frequency division duplex
  • FDD frequency division duplex
  • TDD time division duplex
  • UMTS universal mobile telecommunication system
  • WiMAX worldwide interoperability for microwave access
  • 5G fifth 5th generation
  • NR new radio
  • the communication system shown in FIG. 1b includes network equipment and terminals, and air interface resources can be used for wireless communication between the network equipment and the terminals.
  • the air interface resources may include one or more of time domain resources, frequency domain resources, code domain resources and air domain resources.
  • network device 1 When multiple terminals served by a network device communicate with the network device, there may be interference among the multiple terminals.
  • network device 1 serves UE1 and UE2, and when UE1 and UE2 are scheduled on the same time-frequency resource, there may be interference between them.
  • terminals served respectively by different network devices communicate with their respective network devices, there will also be interference between multiple terminals.
  • network device 1 serves UE3, and network device 2 serves UE4. Due to the location relationship, when UE3 and UE4 are scheduled on the same time-frequency resource, interference will also occur between them.
  • the coverage of a network device usually includes one or more cells, and each cell has one or more terminals. Terminals that interfere with each other may be terminals in one cell or terminals in different cells.
  • the present application proposes various solutions for scheduling terminals.
  • the core idea is that the centralized device determines the interference situation between any two terminals through information such as the terminal's channel state, beam signal strength, received signal strength indication, reference signal received power, and reference signal received quality.
  • the terminals with interference or relatively large interference only a part of the terminals are scheduled on the same time-frequency resource, and the other part of the terminals are not scheduled, so as to reduce the interference between the terminals.
  • terminal a, terminal b, and terminal c all have interference or relatively large interference, and only one terminal may be scheduled among the three terminals, and the other two terminals are not scheduled.
  • only terminal a is scheduled, but terminal b and terminal c are not scheduled. Since terminal b and terminal c are not scheduled when terminal a is scheduled, terminal b and terminal c must not cause interference to terminal a, which reduces the number of interference between terminals.
  • the scheduling scheme in this application can be applied to a variety of application scenarios, and the following describes: in different application scenarios, the association relationship between the centralized device and the scheduling device.
  • the scheduling device is "a device capable of scheduling terminals", which can also be understood as “a network device serving terminals”.
  • the following examples are for illustration only, and do not limit the present application.
  • the present application is applicable to the scenario of one base station, and there are multiple cells under one base station, that is, the interference situation between terminals served by each base station is considered separately and has nothing to do with other base stations.
  • the centralized device is the base station
  • the scheduling device is also the base station.
  • the present application is applicable to a scenario of multiple base stations, that is, the interference situation between terminals served by multiple base stations is comprehensively considered.
  • the centralized device is one base station
  • the scheduling device is another base station.
  • the primary base station and one or more secondary base stations may form a cooperative cluster, and the primary base station and the secondary base station may communicate through the Xn/X2 interface.
  • the centralized device may be the primary base station
  • the scheduling device may be the secondary base station.
  • the present application is applicable to a scenario where the CU and the DU are separated, and the CU and the DU may communicate in a pre-transmission or post-transmission manner.
  • the centralized device is the CU and the scheduling device is the DU; or the centralized device is the CU and the scheduling device is also the CU.
  • the present application is applicable to the scenario of the C-RAN architecture
  • the centralized device may be a BBU
  • the scheduling device may be an AAU
  • the centralized device may be a BBU
  • the scheduling device may also be a BBU.
  • the present application can also be applied to a scenario of multi-AP cooperation
  • the centralized device can be an AP
  • the scheduling device can be another AP.
  • Network equipment with equipment capable of providing random access functions for terminal equipment or a chip that can be provided in the equipment, the equipment includes but is not limited to: evolved Node B (evolved Node B, eNB), radio network controller ( radio network controller, RNC), Node B (Node B, NB), base station controller (BSC), base transceiver station (base transceiver station, BTS), home base station (for example, home evolved NodeB, or home Node B, HNB), baseband unit (BBU), access point (AP), wireless relay node, wireless backhaul node, transmission point (transmission point) in wireless fidelity (wireless fidelity, WIFI) system and reception point, TRP or transmission point, TP), etc., can also be 5G, such as NR, gNB in the system, or transmission point (TRP or TP), one or a group of base stations in the 5G system (including multiple antenna panel), or, it can also be a network node that constitutes a gNB or a transmission point, such
  • Terminal equipment also known as user equipment (UE), mobile station (MS), mobile terminal (MT), terminal, etc.
  • UE user equipment
  • MS mobile station
  • MT mobile terminal
  • the terminal device includes a handheld device with a wireless connection function, a vehicle-mounted device, and the like.
  • terminal devices can be: mobile phones (mobile phones), tablet computers, notebook computers, PDAs, mobile Internet devices (MIDs), wearable devices, virtual reality (virtual reality, VR) devices, augmented reality (augmented reality (AR) equipment, wireless terminals in industrial control, wireless terminals in self-driving, wireless terminals in remote medical surgery, and smart grids wireless terminal, wireless terminal in transportation safety, wireless terminal in smart city, wireless terminal in smart home, or vehicle-to-vehicle (Vehicle-to-Vehicle, V2V) public wireless terminals, etc.
  • VR virtual reality
  • AR augmented reality
  • wireless terminals in industrial control wireless terminals in self-driving
  • smart grids wireless terminal in transportation safety, wireless terminal in smart city, wireless terminal in smart home, or vehicle-to-vehicle (Vehicle-to-Vehicle, V2V) public wireless terminals, etc.
  • the solution of the present application may be executed in each scheduling period, and one scheduling period may be, for example, one transmission time interval (transmission time interval, TTI) or multiple TTIs.
  • TTI transmission time interval
  • FIG. 3 a schematic diagram of a process for scheduling terminals is provided, including the following steps:
  • Step 301 The centralized device acquires the respective first information of the multiple terminals, where the first information is used to determine mutual interference when any two terminals are scheduled on the first time-frequency resource.
  • the multiple terminals may be located in the same cell, or may be located in different cells. Taking two cells: a first cell and a second cell as an example, the multiple terminals may include one or more terminals in the first cell and one or more terminals in the second cell. Taking three cells: a first cell, a second cell and a third cell as an example, the multiple terminals may include one or more terminals in the first cell, one or more terminals in the second cell, and a third cell one or more terminals.
  • the first time-frequency resource in this application may be the number of resource elements (resource elements, RE), or the number of precoding resource block groups (precoding resource block groups, PRG), or the number of physical resource blocks (physical resource blocks, PRB) The number of , or resource block group (RBG) or subband (subband or bandwidth part, BWP) representation.
  • the first time-frequency resource may be the scheduling bandwidth in the current scheduling period.
  • the terminal that acquires the first information in step 301 is a terminal waiting to be scheduled, and "waiting to be scheduled" can be understood as data that needs to be transmitted between the terminal and the network device. In practical applications, in addition to terminals waiting to be scheduled, each cell may also include terminals not waiting to be scheduled.
  • the first information may include, but is not limited to, one or more of the following information: channel state information, beam signal strength, received signal strength indicator (RSSI), reference signal received power (reference signal received power) , RSRP), reference signal received quality (reference signal received quality, RSRQ), the identifier of the beam whose signal strength is greater than or equal to the set threshold, and the identifier of the beam whose signal strength is less than or equal to the set threshold.
  • RSSI received signal strength indicator
  • RSRQ reference signal received quality
  • the channel state information can be a channel gain matrix, such as a channel gain matrix H i,p from a network device p to a terminal i, or it can be a right singular vector h i,p , h i,p corresponding to the largest singular value of H i ,p Represents the strongest narrow beam direction from network device p to terminal i.
  • the first information may further include: a scheduling priority, where the scheduling priority is the ratio of the instantaneous transmission rate of the terminal i to the historical average transmission rate, which may be represented by pi.
  • the terminal reports the first information to the centralized device, and this example is generally applicable to a scenario where the centralized device is a scheduling device, such as the scenario in FIG. 2a.
  • the terminal reports the first information to the scheduling device, and the scheduling device then reports the first information of the terminal to the centralized device.
  • the scheduling device reports the first information of the terminal to the centralized device.
  • Such an example is generally applicable to scenarios where the centralizing device is different from the scheduling device, such as the scenarios in Figure 2b and Figure 2c.
  • information such as channel state information, beam signal strength, received signal strength indication RSSI, reference signal received power RSRP, reference signal received quality RSRQ, etc.
  • the information can be reported to the scheduling device (ie, the network device serving the terminal) after the terminal measures, or the scheduling device can obtain the downlink information by using the uplink and downlink channels to reciprocate after actively measuring the uplink information.
  • Step 302 The centralized device determines whether to schedule the terminal of the first cell on the first time-frequency resource according to the interference between the terminal of the first cell and the terminal of the second cell when they are scheduled on the first time-frequency resource and the terminal of the second cell.
  • an interference threshold is set, and according to the interference threshold, it is determined which terminals are scheduled on the first time-frequency resource. It is described above that the first cell includes one or more terminals waiting to be scheduled, and the second cell includes one or more terminals waiting to be scheduled. Taking any terminal 1 in the first cell and any terminal 2 in the second cell as examples, a specific example of whether to schedule these two terminals is introduced.
  • terminal 1 and terminal 2 are scheduled on the first time-frequency resource, and the mutual interference is greater than or equal to the interference threshold, it is determined not to schedule the terminal 1 and the terminal on the first time-frequency resource Terminal 2. For example, terminal 1 is scheduled and terminal 2 is not scheduled. For another example, terminal 2 is scheduled and terminal 1 is not scheduled.
  • the mutual interference is less than or equal to the interference threshold, determine to schedule the terminal 1 and the terminal on the first time-frequency resource 2.
  • the centralized device may determine whether to schedule the two terminals on the first time-frequency resource according to mutual interference between the two terminals when they are scheduled on the first time-frequency resource. Further, the centralized device may comprehensively consider the interference situation between any two terminals, and determine the terminal scheduled on the first time-frequency resource among the multiple terminals.
  • the centralized device determines which group each terminal is in. Specifically, the centralized device divides the plurality of terminals into groups according to mutual interference between the terminals of the first cell and the terminals of the second cell when they are scheduled on the first time-frequency resource. According to the grouping situation, it is determined which terminals are scheduled on the first time-frequency resource.
  • a terminal can only be located in one group, that is, the terminals in different groups are different.
  • the mutual interference between the terminal and at least one first terminal when they are scheduled on the first time-frequency resource is greater than the mutual interference between the terminal and the second terminal when they are scheduled on the first time-frequency resource interference between the terminals, the terminal and the first terminal are located in the same group, and the terminal and the second terminal are located in different groups.
  • This grouping feature can be understood as: in the case of high probability, when multiple terminals in a group are scheduled on the same time-frequency resource, the mutual interference is relatively large, and multiple terminals in different groups are scheduled on the same time-frequency resource. When resources are scheduled, the mutual interference is small. In other words, in the case of high probability, the interference between multiple terminals in a group when they are scheduled on the same time-frequency resource is greater than the mutual interference between multiple terminals in different groups when they are scheduled on the same time-frequency resource. interference between.
  • cell a has 8 terminals, which are terminal a1 to terminal a8, and cell b has 8 terminals, which are terminal b1 to terminal b8 respectively.
  • the 16 terminals are divided into 5 groups in total, and the specific grouping situation is shown in Table 1.
  • the first group includes terminal a1, terminal a5 and terminal a8 of cell a;
  • the second group includes terminal b1 and terminal b2 of cell b;
  • the third group includes terminal a2 and terminal a6 of cell a, and terminal b4 and terminal b6 of cell b;
  • the fourth group includes terminal a3 of cell a, and terminal b3, terminal b5 and terminal b8 of cell b;
  • the fifth group includes terminals a4 and a7 of cell a, and terminal b7 of cell b.
  • the interference between multiple terminals in a group when they are scheduled on the first time-frequency resource is greater than the interference between multiple terminals in different groups when they are scheduled on the first time-frequency resource interference.
  • the interference between the terminal a1 and the terminal a5 is greater than the interference between the terminal a1 and the terminal a2.
  • the interference between the terminal a3 and the terminal b3 is greater than the interference between the terminal b3 and the terminal b7.
  • the centralized device selects at least one target terminal of the group among the terminals of each group, and the target terminal is the scheduled terminal.
  • the "scheduled terminal" is defined as the target terminal.
  • one or more target terminals in a group may be selected according to the priorities of the terminals in the group.
  • the centralized device can select one terminal from the five groups as the target terminal, and can select five target terminals.
  • the centralized device may select the terminal with the highest scheduling priority in a group as the target terminal, that is, the target terminal is the terminal with the highest scheduling priority in the group where the target terminal is located.
  • the target terminal may also be determined by considering the global load of multiple cells, so as to achieve the purpose of load balancing among cells.
  • the centralized device divides the terminals into groups according to mutual interference when multiple terminals are scheduled on the first time-frequency resource. In the case of high probability, the interference between terminals in one group is relatively large, and the interference between terminals in different groups is relatively small. When scheduling terminals, only one target terminal in a group is selected for scheduling, and other terminals are not scheduled.
  • This selection method can avoid simultaneous scheduling of terminals with greater interference, and can reduce mutual interference between terminals.
  • multiple terminals are located in multiple cells, not only the mutual interference between the terminals in the cells, but also the mutual interference between the terminals in the cells can be solved.
  • the first time-frequency resource is greater than the time-frequency resource actually used by the terminal to transmit data. If in one scheduling, only one target terminal is scheduled in a group, there will be a waste of resources. Based on this, the centralized device can also select as many terminals as possible to perform scheduling on different time-frequency resources according to the size of resources required by each terminal to transmit data.
  • the number of resource elements (REs), or the number of precoding resource block groups (PRGs), or the number of physical resource blocks (PRBs) or resource block groups (resource blocks) can be used.
  • group, RBG) represents the resource size. For example, if the first time-frequency resource is 100 PRBs, one target terminal a may only need 60 PRBs to transmit data, or even less.
  • the centralized device may also schedule target terminal b, and allocate the remaining 40 PRBs to target terminal b to improve resource utilization.
  • the first information of the terminal acquired by the centralized device described above may further include the size of resources required by the terminal to transmit data.
  • the centralized device can select one or more target terminals in the group according to the size of the resources required by each terminal in the group to transmit data, and determine the second time corresponding to each target terminal. frequency resources, so that the scheduling device schedules the target terminal on the second time-frequency resources.
  • the second time-frequency resources corresponding to different target terminals are different, and the second time-frequency resources are part or all of the first time-frequency resources.
  • the centralized device can select one or more target terminals in the group according to the size of the resources required for data transmission of each terminal in the group and the scheduling priority of each terminal, and determine that each target terminal corresponds to the second time-frequency resource.
  • the terminal with the highest scheduling priority is the target terminal, or several terminals with higher scheduling priorities are the target terminal.
  • Step 303 The centralized device may send second indication information to the scheduling device of the target terminal, where the second indication information is used to indicate that the target terminal is scheduled.
  • the scheduling device receives the second indication information, and schedules the target terminal.
  • the centralized device when the first cell includes the target terminal, the centralized device sends second indication information to the scheduling device of the first cell, where the second indication information is used to instruct: to schedule the target terminal in the first cell.
  • the centralized device when the second cell includes the target terminal, the centralized device sends second indication information to the scheduling device of the second cell, where the second indication information is used to instruct: to schedule the target terminal in the second cell.
  • the rest of the cells are similar and will not be repeated.
  • the second indication information includes identification information of the target terminal. That is, the centralized device informs the scheduling device which terminals can be scheduled by sending the identifier of the target terminal to the scheduling device; the terminal that does not send the identifier is the terminal that cannot be scheduled.
  • the second indication information may further include a scheduling identifier.
  • the second indication information may further indicate a second time-frequency resource corresponding to each target terminal, and the second time-frequency resource is used for scheduling the target terminal.
  • the second indication information may further include: information of the second time-frequency resource corresponding to each target terminal.
  • the second time-frequency resources corresponding to different target terminals are different, so that the scheduling device schedules multiple target terminals on different time-frequency resources, and there will be no interference or no interference between the multiple target terminals. There is strong interference.
  • the centralized device and the scheduling device may or may not be the same. If the scheduling device of a certain target terminal is a centralized device, the centralized device can directly schedule the target terminal.
  • the first cell is a cell of the centralized device, and the centralized device schedules target terminals in the first cell.
  • the centralized device is different from the scheduling device of the second cell, and the centralized device sends second information to the scheduling device of the second cell, where the second information is used to indicate the target terminal in the second cell, the second cell is not The cell of the centralized device.
  • the target terminal selected in the first group is terminal a1, the target terminal selected in the second group is terminal b2, the target terminal selected in the third group is terminal a6, and the target terminal selected in the fourth group is terminal a6.
  • the terminal is terminal b8, and the target terminal selected from the fifth group is terminal a7.
  • cell a is a cell of centralized equipment
  • cell b is not a cell of centralized equipment.
  • the centralized equipment schedules the terminals a1, a6, and a7, and the centralized equipment notifies the terminal b2 and the terminal b8 to the scheduling equipment of the cell b, so that the scheduling equipment of the cell b schedules the terminal b2 and the terminal b8.
  • the centralized device when the centralized device sends the second indication information to the scheduling device to indicate the target terminal in the scheduling cell, in addition to indicating the target terminal, it may also indicate the terminal that is not scheduled.
  • the scheduling flag is a required option.
  • the scheduling identifier may be indicated by 1 bit, for example, when the 1 bit is 0, it means that the scheduling is not allowed, and when the 1 bit is 1, it means that the scheduling is allowed. In this way, the scheduling device can determine the target terminal according to the scheduling identifier.
  • the centralized device may determine the interference coefficient between any two terminals according to the first information, and divide the group according to the interference coefficient.
  • the interference coefficient w i,j of terminal i to terminal j is:
  • p represents a network device serving terminal i
  • q represents a network device serving terminal j
  • p and q may be the same or different network devices.
  • h i, p represents the right singular vector h i, p , h i, p corresponding to the largest singular value of the channel gain matrix (H i, p ) from the network device p to the terminal i can represent the strongest one from the network device p to the terminal i Narrow beam direction.
  • the interference coefficient of the terminal i to the terminal j represents the estimation of the interference magnitude of the downlink signal sent by the network device p to the terminal i to the terminal j.
  • the interference coefficient w i,j of terminal i to terminal j is:
  • p represents a network device serving terminal i
  • q represents a network device serving terminal j
  • p and q may be the same or different network devices.
  • ⁇ r i,p represents the sum of each element of the vector ri ,p .
  • the vector ri ,p represents the signal strength of each beam direction.
  • Each element in the vector corresponds to the signal strength in one beam direction.
  • the signal strength can be obtained by measuring the received power of the reference signal, or the received strength, or the received quality, or by calculating the channel gain matrix (H i,p ) from the network device p to the terminal i.
  • the specific process belongs to the prior art and will not be described in detail. If the signal strength of certain beam directions is less than a certain threshold, the signal strength of that beam direction can be set to zero.
  • the vector ri ,p represents the signal strength identifiers of each beam direction, and each element in the vector corresponds to the signal strength identifier of one beam direction.
  • the signal strength is identified as 0 or 1.
  • the signal strength is marked as 0; otherwise, the signal strength is marked as 1.
  • the signal strength identifier may also be other values such as 1 and 2, which are not limited.
  • the first information may include the identification of beams whose signal strength is greater than or equal to the set threshold, and/or the identification of beams whose signal strength is less than or equal to the preset threshold, and the centralized device can determine the corresponding signal according to the identification of these beams Strength ID.
  • the interference coefficient of terminal i to terminal j is different from the interference coefficient of terminal j to terminal i. Assuming that there are 10 terminals, when calculating the interference coefficient between these 10 terminals, a 10*10 matrix can be obtained. There are 100 interference coefficients in the 10*10 matrix, and the diagonal of the 10*10 matrix The line is the interference of terminal i to terminal i, or the interference of terminal j to terminal j, and the interference coefficient is 1. The numerical values of the remaining positions except the diagonal position in the 10*10 matrix can represent one terminal to another terminal. interference factor.
  • spectral clustering method k-means method, etc. can be used for division.
  • the terminal grouping problem is mathematically modeled as a graph partitioning problem: the disturbance relation of terminals is constructed as an undirected weighted graph in is a picture
  • the vertex set of each vertex represents a terminal to be scheduled, and the terminal priority p i can be used as the point weight of the corresponding vertex i;
  • is the graph
  • the set of edges between two vertices of , and the interference coefficient w ij between the corresponding terminals is used as the edge weight.
  • the division result is shown in Figure 5.
  • the vertex sets in the three circles represent the three subgraphs after division.
  • the edge weight (solid line) in the same subgraph is larger, and the edge weight (dotted line) between different subgraphs is smaller.
  • the objective function that achieves the segmentation effect of this graph is not unique.
  • the present application can dynamically coordinate the beam directions of downlink transmission between adjacent cells, greatly reducing the mutual interference between cells, to improve the spectral efficiency of the system.
  • step 302 it is determined whether to schedule the terminals of the first cell and the second cell on the first time-frequency resource. and in step 402, it is determined whether to allow the terminal of the first cell and the terminal of the second cell to be scheduled on the first time-frequency resource.
  • step 402 it is determined whether to allow the terminal of the first cell and the terminal of the second cell to be scheduled on the first time-frequency resource.
  • “allowed to be scheduled” and “scheduled” are two different concepts. “Allow to be scheduled” means that the centralized equipment first filters out some terminals as candidates for "scheduled” among all the terminals, the "scheduled” terminal is the actual scheduled terminal, and the "scheduled” terminal is “allowed to be scheduled”. Scheduling" part of the terminal.
  • Figure 4 includes the following steps:
  • Step 401 The centralized device acquires the respective first information of the multiple terminals, where the first information is used to determine mutual interference when any two terminals are scheduled on the first time-frequency resource.
  • the process of step 401 is the same as the process of step 301, and repeated descriptions are omitted.
  • Step 402 The centralized device determines, according to the interference between the terminals of the first cell and the terminals of the second cell when they are coherently scheduled on the first time-frequency resource, whether to allow scheduling of the first cell's terminal on the first time-frequency resource. a terminal and a terminal of the second cell.
  • an interference threshold is set, and which terminals are allowed to be scheduled on the first time-frequency resource is determined by the interference threshold.
  • the process in step 302 of this example is similar, except that "determine scheduling” in step 302 is changed to "determine whether scheduling is allowed", and the following is a detailed introduction:
  • the first cell includes one or more terminals waiting to be scheduled
  • the second cell includes one or more terminals waiting to be scheduled.
  • any terminal 1 in the first cell and any terminal 2 in the second cell as examples, a specific example of whether to allow scheduling of these two terminals is introduced.
  • the terminal 2 When terminal 1 and terminal 2 are scheduled on the first time-frequency resource, and the mutual interference is greater than or equal to the interference threshold, it is determined that terminal 1 and terminal 2 are not allowed to be scheduled on the first time-frequency resource. the terminal 2.
  • the centralized device allows terminal 1 to be scheduled, but not terminal 2.
  • the centralized device is allowed to schedule terminal 2, but not allowed to schedule terminal 1.
  • the mutual interference between terminal 1 and terminal 2 is less than or equal to the interference threshold when the terminal 1 and terminal 2 are scheduled on the first time-frequency resource, it is determined that the terminal 1 and the terminal 2 are allowed to be scheduled on the first time-frequency resource.
  • the centralized device may determine whether to allow the two terminals to be scheduled on the first time-frequency resource according to the mutual interference between the two terminals when they are scheduled on the first time-frequency resource. . Further, the centralized device may comprehensively consider the interference situation between any two terminals, and determine a terminal that is allowed to be scheduled on the first time-frequency resource among the multiple terminals.
  • Step 403 After determining the terminals that are allowed to be scheduled, the centralized device may deliver the terminals that are allowed to be scheduled to each scheduling device.
  • the centralized device may also send first indication information to the scheduling device of the cell, and correspondingly, the scheduling device of the cell receives the first indication information from the centralized device, where the first indication information is used to indicate that the cell is allowed to be Scheduling terminal. Further, the scheduling device may select a target terminal for scheduling among terminals that are allowed to be scheduled. The scheduling device may use the terminal allowed to be scheduled as the target terminal, or may select one or more terminals with the highest or higher priority among the terminals allowed to be scheduled as the target terminal.
  • the centralized device may send first indication information to the scheduling device of the first cell, where the first indication information is used to indicate that: in the first cell Terminals that are allowed to be scheduled.
  • the centralized device may send first indication information to the scheduling device of the second cell, where the first indication information is used to indicate: the second cell Terminals that are allowed to be scheduled in .
  • the rest of the districts are similar and will not be repeated.
  • the first indication information may include the identifiers of the terminals that are allowed to be scheduled, that is, the centralized device sends the identifiers of the terminals that are allowed to be scheduled to the scheduling device to inform the scheduling device which terminals are allowed to be scheduled; Scheduled terminals are not allowed.
  • the first indication information may further include a scheduling permission identifier.
  • the centralized device when the centralized device sends the first indication information to the scheduling device of the cell to indicate the terminals that are allowed to be scheduled in the cell, in addition to indicating the terminals that are allowed to be scheduled, it can also indicate the terminals that are not allowed to be scheduled.
  • the allow-scheduling flag is a required option.
  • the scheduling permission identifier may be indicated by 1 bit, for example, when 1 bit is 0, it indicates that scheduling is not allowed, and when the 1 bit is 1, it indicates that scheduling is allowed. In this way, the scheduling device can determine the terminals that are permitted to be scheduled according to the identifiers that are permitted to be scheduled corresponding to each terminal.
  • the centralized device and the scheduling device may or may not be the same. If the scheduling device of a terminal allowed to be scheduled is a centralized device, the centralized device does not need to send the first indication information for the terminal allowed to be scheduled.
  • Steps 602 and 603 in FIG. 6 are an example of the above-mentioned step 402 .
  • the example of FIG. 6 differs from the example of FIG. 3 in that in the example of FIG. 3 , the centralized device decides which terminals are scheduled and which terminals are not scheduled, and informs the scheduling device of the terminal-level scheduling results.
  • the scheduling device may schedule the terminal according to the final scheduling result.
  • the centralized device divides the terminals into groups according to the first information of the terminals.
  • the centralized device informs the scheduling device of the coarse-grained scheduling selection result at the cell level, and the scheduling device decides which terminal in the cell to schedule. This approach can improve scheduling flexibility.
  • the remaining technical details of the examples of FIGS. 3 and 6 are the same and can be referred to each other.
  • Step 601 The centralized device acquires the respective first information of the multiple terminals, where the first information is used to determine mutual interference when any two terminals are scheduled on the first time-frequency resource.
  • the process of step 601 is the same as the process of step 301 and step 401, and repeated descriptions will not be repeated.
  • Step 602 The centralized device determines the group to which each terminal belongs. Specifically, the centralized device divides the multiple terminals into groups according to mutual interference when the multiple terminals are scheduled on the first time-frequency resource. Based on the grouping, it is determined which terminals are allowed to be scheduled on the first time-frequency resource. For the grouping process, reference may be made to the above description, and the description will not be repeated.
  • Step 603 The centralized device determines the terminals allowed to be scheduled in each group.
  • the centralized device can perform the following processing for each group:
  • the terminals of the one cell in the group are allowed to be scheduled on the first time-frequency resource. If there are two cells: the first cell and the second cell, for example, the group may include only the terminals of the first cell or only the terminals of the second cell.
  • the terminals of one cell in the group are allowed to be scheduled on the first time-frequency resource, and the terminals of the remaining cells of the group are not allowed to be scheduled on the first time-frequency resource.
  • the group of terminals including two cells Take the group of terminals including two cells as an example: if the group includes one or more third terminals in the first cell and one or more fourth terminals in the second cell, the first time-frequency resource is allowed to The third terminal of the first cell in the group is not allowed to be scheduled on the first time-frequency resource, and the fourth terminal of the second cell of the group is not allowed to be scheduled on the first time-frequency resource; or the group is not allowed to be scheduled on the first time-frequency resource.
  • the third terminal of the first cell in the group is allowed to schedule the fourth terminal of the second cell in the group on the first time-frequency resource.
  • the terminal in the group among the terminals waiting to be scheduled in the first cell is defined as the third terminal
  • the terminal in the group among the terminals waiting to be scheduled in the second cell is defined as the fourth terminal.
  • the third terminal may be part or all of the terminals waiting to be scheduled in the first cell.
  • the fourth terminal may be part or all of the terminals waiting to be scheduled in the second cell.
  • the above process of determining terminals that are allowed to be scheduled can also be regarded as a process of determining the category of each terminal.
  • the categories here are divided into two categories, namely the first category and the second category.
  • the first category is used to indicate that scheduling is allowed, and the second category is used to indicate that scheduling is not allowed.
  • the terminals of the cell are allowed to be scheduled, that is, the categories of the terminals in the cell are all of the first category.
  • the terminals in this cell are allowed to be scheduled.
  • Table 1 there is only one cell a in the first group and only one cell b in the second group, then the terminals in both cell a in the first group and cell b in the second group are allowed to be scheduled, that is The categories of terminals are all the first category (see Table 2 below).
  • a group when a group includes terminals in multiple cells, within the group, only terminals in one cell are allowed to be scheduled (the type of the terminal is the first type), and terminals in other cells are not allowed to be scheduled (The category of the terminal is the second category). In this example, since only the terminals of one cell are allowed to be scheduled, inter-cell interference will not be generated.
  • the third group includes terminals in two cells, cell a and cell b, any cell can be selected as a cell that allows the terminal to be scheduled, and the other cell is a cell that does not allow the terminal to be scheduled.
  • the terminal in which cell in a group is allowed to be scheduled (that is, the terminal category is the first category), and the terminal in which cell is not allowed to be scheduled (that is, the second category of terminal), can be based on the scheduling of the terminals in the group
  • the priority may also be determined according to the number of terminals in each cell in the group, or may be determined by a combination of the two.
  • a terminal in a cell is allowed to be scheduled according to a combination of the scheduling priority of each terminal in a group and the number of terminals in each cell. For example, the largest number of terminals is considered first. When the number of terminals in at least two cells is the same, the scheduling priority of the terminal may be considered again, and the cell where the terminal with the highest scheduling priority is located is determined as the cell that allows the terminal to be scheduled. For another example, the scheduling priority of the terminals in the cell is considered first, and when the scheduling priorities of the terminals with the highest scheduling priority in at least two cells are the same, the number of terminals in the cell can be considered again, and the cell with the largest number of terminals is determined as the allowed cell. The cell where the terminal is scheduled.
  • Table 2 provides a result of determining whether a terminal in each cell in each group is allowed to be scheduled (that is, the category of the terminal).
  • the scheduling priority of terminal a2 in cell a is the highest
  • the scheduling priority of terminal b4 in cell b is the highest
  • the scheduling priority of terminal a2 is higher than the scheduling priority of terminal b4
  • the terminals in cell a are allowed to be scheduled
  • the terminals in cell b are not allowed to be scheduled.
  • the terminals in cell b are not allowed to be scheduled, and the terminals in cell b are allowed to be scheduled.
  • the terminals in cell a are allowed to be scheduled, but the terminals in cell b are not allowed to be scheduled.
  • Table 2 is only an example, and does not limit the present application.
  • the scheduling priority of each terminal in the cell may also be considered, instead of using only the highest scheduling priority for comparison.
  • a weight may be assigned to each scheduling priority, an average weight of each cell may be determined, and based on the average weight, it may be determined which cell terminals in a group are allowed to be scheduled and which cells are not allowed to be scheduled.
  • the centralized device may further determine whether the terminals in each cell are allowed to be scheduled in combination with the number of terminals reported in each cell.
  • the coarse-grained scheduling selection at the cell level belongs to a centralized algorithm and has the global load information of each cell, it can adaptively adjust the number of scheduling terminals in each cell to achieve the purpose of load balancing among cells.
  • the centralized device may further divide the first category in more detail, for example, into a first sub-category and a second sub-category.
  • the first category of terminals in the cell is the first subcategory; when a group includes terminals in multiple cells, the first category of terminals in one cell in the group is the first subcategory.
  • One category is the second subcategory.
  • the categories of a1, a5, and a8 in the first group and b1 and b2 in the second group are the first subcategories.
  • the categories of a2, a6 in the third group, a4, a7 in the fifth group, and b3, b5, and b8 in the fourth group are all second subcategories.
  • the first sub-category here can also be understood as a non-interference category
  • the second sub-category can also be understood as a low-interference category
  • the second sub-category can also be understood as a high-interference category.
  • the scheduling device may schedule terminals in the non-interference category first, and then the terminals in the low-interference category according to three categories, and in some special cases, may also schedule the terminals in the high-interference category.
  • high power can be used to transmit data
  • data can be transmitted in low power
  • scheduling may not be performed, or a lower power may be used. transfer data.
  • Step 604 After determining the terminals allowed to be scheduled in each group, the centralized device may deliver the terminals allowed to be scheduled to each scheduling device.
  • step 604 the first indication information may also be used to indicate the group to which each terminal allowed to be scheduled in the cell belongs.
  • the centralized device may also send first indication information to the scheduling device of the cell, and correspondingly, the scheduling device of the cell receives the first indication information from the centralized device, where the first indication information is used to indicate that the cell is allowed to be The scheduled terminals, and the group to which each terminal in the cell is allowed to be scheduled.
  • the centralized device may send the first indication information to the scheduling device of the first cell, and correspondingly, the scheduling device of the first cell receives the first indication information from the centralized device.
  • Indication information where the first indication information is used to indicate: terminals allowed to be scheduled in the first cell, and a group to which each terminal allowed to be scheduled in the first cell belongs.
  • the first indication information includes an identifier of each terminal in the first cell that is allowed to be scheduled, and an identifier of a group to which each terminal is located.
  • the centralized device may send the first indication information to the scheduling device of the second cell, and correspondingly, the scheduling device of the second cell receives the first indication information from the centralized device.
  • Indication information where the first indication information is used to indicate: terminals allowed to be scheduled in the second cell, and a group to which each terminal allowed to be scheduled in the second cell belongs.
  • the first indication information includes an identifier of each terminal in the second cell that is allowed to be scheduled, and an identifier of a group to which each terminal is located.
  • the first indication information may further include a scheduling permission identifier.
  • the centralized device when the centralized device sends the first indication information to the scheduling device of the cell to indicate the terminals that are allowed to be scheduled in the cell, in addition to indicating the terminals that are allowed to be scheduled, it may also indicate the terminals that are not allowed to be scheduled. That is, the centralized device sends the respective information of all terminals in the cell (including those that are allowed to be scheduled and those that are not allowed to be scheduled) to the scheduling device of the cell.
  • the first indication information should be used not only to indicate the group in which the terminal is located, but also to indicate the category of the terminal, that is, to indicate whether the terminal is a terminal that allows scheduling (the first category) or the terminal Terminals that do not allow scheduling (second category).
  • the first category and the permission to be scheduled flag may be one flag.
  • the scheduling device receives first indication information sent from the centralized device, where the first indication information is used to indicate the group in which the terminal is located, and the type of the terminal, where the type is the first category or second category. In this way, the scheduling device can select the terminal that is allowed to be scheduled according to the category of the terminal.
  • the centralized device and the scheduling device may or may not be the same. If the scheduling device of a terminal allowed to be scheduled is a centralized device, the centralized device does not need to send the first indication information for the terminal allowed to be scheduled.
  • Step 605 The scheduling device determines a target terminal among terminals that are allowed to be scheduled, and further, the scheduling device schedules the target terminal.
  • the first cell is taken as an example for description, and the rest of the cells are similar.
  • the scheduling device in the first cell determines the target terminal in the first cell; further, the scheduling device schedules the target terminal in the first cell.
  • the target terminal may be any terminal allowed to be scheduled in the first cell.
  • the terminals in the first cell include: terminal a1-terminal a8, and the terminals allowed to be scheduled (the first category) in the first cell include: a1, a5, a8, a2, a6, a4, a7.
  • the scheduled target terminal in the first cell is any one of a1, a5, a8, a2, a6, a4, and a7.
  • the terminals allowed to be scheduled (first category) in the first cell are b1, b2, b3, b5, and b8.
  • the target terminal to be scheduled in the first cell is any one of b1, b2, b3, b5, and b8.
  • the groups to which the multiple target terminals belong are different.
  • the scheduling device may select a terminal from the first group, the third group, and the fifth group, respectively, as a scheduled target terminal. For example, select 3 target terminals, namely a1, a2 and a4. For another example, three target terminals are selected, namely a1, a6 and a7.
  • the scheduling device may select one terminal from the second group and the fourth group respectively as the scheduled target terminal. For example, choose b1 and b3, or choose b1 and b5, or choose b8 and b2.
  • the scheduling device may determine the target terminal among terminals that are allowed to be scheduled according to the scheduling priority of the terminals.
  • the terminal with the highest scheduling priority among the terminals to be scheduled is allowed to be the target terminal, or several terminals with higher scheduling priorities are the target terminals.
  • only one terminal in the first cell is allowed to be scheduled in a group, which can avoid simultaneous scheduling of terminals with greater interference in the first cell, thereby reducing mutual interaction between terminals in the first cell interference.
  • the centralized device divides the terminals into groups according to the interference between the terminals.
  • the interference between terminals in one group is relatively large, and the interference between terminals in different groups is relatively small.
  • Terminals in only one cell in a group are allowed to be scheduled, and terminals in other cells are not allowed to be scheduled. Selecting the manner in this way can avoid simultaneous scheduling of terminals with relatively large interference between cells, thereby reducing mutual interference between terminals in the cells.
  • the centralized device can also notify the scheduling device of the coarse-grained scheduling selection result at the cell level, and the scheduling device decides which terminal to schedule, which can also improve scheduling flexibility.
  • the centralized device may deliver the terminals that are allowed to be scheduled to each scheduling device.
  • the target device is selected by the scheduling device at the terminals that are allowed to be scheduled.
  • the centralized device can select a target terminal from the terminals that are allowed to be scheduled. This process is the same as the process in which the scheduling device allows the scheduled terminal to select the target device in the example of FIG. 6 , but the execution device is different. Further, the centralized device may send second indication information to the scheduling device of the target terminal, where the second indication information is used to indicate that the target terminal is scheduled. Correspondingly, the scheduling device receives the second indication information, and schedules the target terminal. This is the same as step 303 in the example of FIG. 3 , and the repetition will not be repeated.
  • the scheduling device schedules multiple target terminals on the first time-frequency resource, and no interference or large interference occurs between the multiple target terminals, thereby ensuring communication performance.
  • each network device can separately calculate the downlink transmission precoding weights for multiple target terminals scheduled for spatial multiplexing to minimize mutual interference between spatial multiplexing terminals. Coding Design Methods.
  • the network device may use the calculated precoding weight to send data to multiple target terminals scheduled by spatial multiplexing.
  • the downlink data transmission stage since each cell selects the target terminal for spatial multiplexing and independently calculates the downlink precoding weight, there is no need for cross-cell precoding calculation and sharing of terminal data to be transmitted, so the implementation complexity and overhead are low. , and there is no loss of spectral efficiency. There is no need for real-time terminal data interaction between cells and complex joint signal processing (for example, adjacent cell interference zero-forcing, multi-cell joint data transmission), and the implementation complexity is low.
  • the embodiments of the present application may divide the device into functional modules according to the foregoing method examples. For example, each function may be divided into each functional module, or two or more functions may be integrated into one module. These modules can be implemented either in the form of hardware or in the form of software function modules. It should be noted that the division of modules in the embodiments of the present application is illustrative, and is only a logical function division, and other division methods may be used in specific implementation.
  • FIG. 7 a schematic structural diagram of an apparatus 700 for scheduling terminals (the apparatus for scheduling terminals may also be regarded as a communication apparatus) is provided.
  • the apparatus 700 may be a centralized device, or may be applied to A chip or functional unit in a centralized device.
  • the apparatus 700 has any function of the centralized device in the above-mentioned method.
  • the apparatus 700 can execute each step performed by the centralized device in the above-mentioned methods of FIG. 3 , FIG. 4 and FIG. 6 .
  • the apparatus 700 may be a scheduling device, or may be a chip or a functional unit applied in the scheduling device.
  • the apparatus 700 has any function of the scheduling device in the above-mentioned method.
  • the apparatus 700 can execute each step performed by the scheduling device in the methods of FIG. 3 , FIG. 4 , and FIG. 6 .
  • the apparatus 700 may include: a processing module 710, and optionally, a receiving module 720a, a sending module 720b, and a storage module 730.
  • the processing module 710 may be connected to the storage module 730, the receiving module 720a, and the sending module 720b, respectively, and the storage module 730 may also be connected to the receiving module 720a and the sending module 720b.
  • the receiving module 720a may perform the receiving action performed by the scheduling device or the centralizing device in the foregoing method embodiments.
  • the sending module 720b may perform the sending action performed by the scheduling device or the centralizing device in the foregoing method embodiments.
  • the processing module 710 may perform other actions except the sending action and the receiving action among the actions performed by the scheduling device or the centralizing device in the foregoing method embodiments.
  • the processing module 710 is configured to acquire respective first information of multiple terminals; the multiple terminals include at least one terminal in the first cell and at least one terminal in the second cell; the multiple terminals are A terminal waiting to be scheduled on the first time-frequency resource; the first information is used to determine the mutual interference between any two terminals when they are scheduled on the first time-frequency resource; The mutual interference between the terminals of the cell when they are scheduled on the first time-frequency resource determines whether the terminal of the first cell and the terminal of the second cell are allowed to be scheduled on the first time-frequency resource.
  • the processing module 710 is configured to determine whether to allow the first time-frequency resource according to the mutual interference between the terminal of the first cell and the terminal of the second cell when they are scheduled on the first time-frequency resource.
  • scheduling the terminal of the first cell and the terminal of the second cell on the first time-frequency resource it is specifically used for: according to the mutual interference between the multiple terminals when they are scheduled on the first time-frequency resource A plurality of terminals are grouped; wherein, for any terminal, the mutual interference between the terminal and at least one first terminal when they are scheduled on the first time-frequency resource is greater than that between the terminal and the second terminal when the first time-frequency resource is scheduled.
  • the terminal and the first terminal are located in the same group, and the terminal and the second terminal are located in different groups; the following processing is performed for each group: if the group only Including a terminal of one cell, the terminal of the one cell in the group is allowed to be scheduled on the first time-frequency resource, and the one cell is the first cell or the second cell; if the group includes the third cell of the first cell terminal and the fourth terminal of the second cell, the third terminal of the first cell in the group is allowed to be scheduled on the first time-frequency resource, and the third terminal of the second cell in the group is not allowed to be scheduled on the first time-frequency resource the fourth terminal; or, the third terminal of the first cell in the group is not allowed to be scheduled on the first time-frequency resource, and the fourth terminal of the second cell in the group is allowed to be scheduled on the first time-frequency resource.
  • the sending module 720b is configured to send first indication information to a scheduling device of the first cell, where the first indication information is used to indicate: a terminal that is allowed to be scheduled in the first cell; and/or , sending first indication information to the scheduling device of the second cell, where the first indication information is used to indicate: a terminal that is allowed to be scheduled in the second cell.
  • processing module 710 is further configured to select at least one target terminal in each group of terminals that are allowed to be scheduled;
  • the sending module 720b is configured to send second indication information to the scheduling device of the first cell, where the second indication information is used to instruct: to schedule the target terminal in the first cell; and/or, Send second indication information to the scheduling device of the second cell, where the second indication information is used to instruct: schedule the target terminal in the second cell.
  • the processing module 710 when the processing module 710 is used to select at least one target terminal of the group among the terminals that are allowed to be scheduled in each group, the processing module 710 is specifically configured to: among the terminals that are allowed to be scheduled in each group Among the terminals, at least one target terminal of the group is selected according to the scheduling priority of each terminal that is allowed to be scheduled.
  • the storage module 730 can store computer-executed instructions for the method executed by the terminal, so that the processing module 710, the receiving module 720a, and the sending module 720b execute the method for scheduling equipment or centralizing equipment execution in the above example.
  • the above-mentioned receiving module 720a and transmitting module 720b can also be integrated together, which is defined as a transceiver module.
  • the device can be implemented by a general bus architecture.
  • FIG. 8 a schematic block diagram of an apparatus 800 for scheduling terminals (the apparatus for scheduling terminals may also be regarded as a communication apparatus) is provided.
  • the apparatus 800 may be a centralized device, or may be a chip applied in the centralized device. It should be understood that the apparatus has any function of the centralized device in the above method. For example, the apparatus 800 can execute each step performed by the centralized device in the methods of FIG. 3 , FIG. 4 and FIG. 6 .
  • the apparatus 800 may be a scheduling device, or may be a chip applied in the scheduling device. It should be understood that the apparatus has any function of the scheduling device in the above method. For example, the apparatus 800 can execute each step performed by the scheduling device in the methods of FIG. 3 , FIG. 4 and FIG. 6 .
  • the apparatus 800 may include: a processor 810 , and optionally, a transceiver 820 and a memory 830 .
  • the transceiver 820 may be used to receive program instructions and transmit them to the processor 810, or the transceiver 820 may be used for the apparatus 800 to communicate and interact with other communication devices, such as interactive control signaling and/or service data Wait.
  • the transceiver 820 may be a code and/or data read/write transceiver, or the transceiver 820 may be a signal transmission transceiver between the processor and the transceiver.
  • the processor 810 and the memory 830 are electrically coupled.
  • the memory 830 is used to store a computer program; the processor 810 can be used to call the computer program or instruction stored in the memory 830 to execute the method executed by the centralized device in the above example, or to use the
  • the transceiver 820 performs the method performed by the centralized device in the above examples.
  • the processing module 710 in FIG. 7 can be implemented by the processor 810 .
  • the receiving module 720a and the transmitting module 720b in FIG. 7 can be implemented by the transceiver 820 .
  • the transceiver 820 is divided into a receiver and a transmitter, the receiver performs the function of the receiving module, and the transmitter performs the function of the transmitting module.
  • the storage module 730 in FIG. 7 may be implemented by the memory 830 .
  • the apparatus may be implemented by a general-purpose processor (a general-purpose processor may also be referred to as a chip or a chip system).
  • a general-purpose processor may also be referred to as a chip or a chip system.
  • the general-purpose processor that implements the apparatus applied to the centralized device or the scheduling device includes: a processing circuit (the processing circuit may also be referred to as a processor); A communication input and output interface and a storage medium (the storage medium may also be referred to as a memory) are connected, where the storage medium is used to store the instructions executed by the processing circuit to execute the method executed by the centralized device or the scheduling device in the above example.
  • the processing module 710 in FIG. 7 may be implemented by a processing circuit.
  • the receiving module 720a and the sending module 720b in FIG. 7 can be implemented through an input and output interface.
  • the input and output interface is divided into an input interface and an output interface, the input interface performs the function of the receiving module, and the output interface performs the function of the sending module.
  • the storage module 730 in FIG. 7 may be implemented by a storage medium.
  • the apparatus of the embodiments of the present application can also be implemented by using the following: one or more FPG centralized devices (field programmable gate arrays), PLDs (programmable logic devices), controllers , state machines, gate logic, discrete hardware components, any other suitable circuit, or any combination of circuits capable of performing the various functions described throughout this application.
  • FPG centralized devices field programmable gate arrays
  • PLDs programmable logic devices
  • controllers state machines, gate logic, discrete hardware components, any other suitable circuit, or any combination of circuits capable of performing the various functions described throughout this application.
  • Embodiments of the present application further provide a computer-readable storage medium storing a computer program, and when the computer program is executed by a computer, the computer can be used to execute the above method for scheduling a terminal.
  • the computer program includes instructions for implementing the above method for scheduling a terminal.
  • Embodiments of the present application further provide a computer program product, including: computer program code, when the computer program code runs on a computer, the computer can execute the method for scheduling a terminal provided above.
  • An embodiment of the present application further provides a communication system, where the communication system includes: a centralized device and a scheduling device that execute the above method for scheduling terminals.
  • the processor mentioned in the embodiments of the present application may be a central processing unit (central processing unit, CPU), a baseband processor, and the baseband processor and the CPU may be integrated or separated, and may also be a network processor (network processor). processor, NP) or a combination of CPU and NP.
  • the processor may further include hardware chips or other general purpose processors.
  • the above-mentioned hardware chip may be an application-specific integrated circuit (ASIC), a programmable logic device (PLD) or a combination thereof.
  • the above-mentioned PLD can be a complex programmable logic device (CPLD), a field-programmable gate array (FPGA), a general-purpose array logic (generic array logic, GAL) and other programmable logic devices. , discrete gate or transistor logic devices, discrete hardware components, etc., or any combination thereof.
  • a general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
  • the memory mentioned in the embodiments of the present application may be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory may be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM, PROM), an erasable programmable read-only memory (Erasable PROM, EPROM), an electrically programmable read-only memory (Erasable PROM, EPROM). Erase programmable read-only memory (Electrically EPROM, EEPROM) or flash memory.
  • Volatile memory may be Random Access Memory (RAM), which acts as an external cache.
  • RAM Static RAM
  • DRAM Dynamic RAM
  • SDRAM Synchronous DRAM
  • SDRAM double data rate synchronous dynamic random access memory
  • Double Data Rate SDRAM DDR SDRAM
  • enhanced SDRAM ESDRAM
  • synchronous link dynamic random access memory Synchlink DRAM, SLDRAM
  • Direct Rambus RAM Direct Rambus RAM
  • the transceiver mentioned in the embodiments of the present application may include a separate transmitter and/or a separate receiver, or the transmitter and the receiver may be integrated.
  • the transceiver may operate under the direction of the corresponding processor.
  • the transmitter may correspond to the transmitter in the physical device
  • the receiver may correspond to the receiver in the physical device.
  • the disclosed system, apparatus and method may be implemented in other manners.
  • the apparatus embodiments described above are only illustrative.
  • the division of the units is only a logical function division. In actual implementation, there may be other division methods.
  • multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not implemented.
  • the shown or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may also be electrical, mechanical or other forms of connection.
  • the units described as separate components may or may not be physically separated, and 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 solutions of the embodiments of the present application.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit.
  • the above-mentioned integrated units may be implemented in the form of hardware, or may be implemented in the form of software functional units.
  • the integrated unit if implemented in the form of a software functional unit and sold or used as an independent product, may be stored in a computer-readable storage medium.
  • the technical solutions of the present application are essentially or part of contributions to the prior art, or all or part of the technical solutions can be embodied in the form of software products, and the computer software products are stored in a storage medium , including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present application.
  • the aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), magnetic disk or optical disk and other media that can store program codes .
  • the embodiments of the present application may be provided as a method, a system, or a computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) having computer-usable program code embodied therein.
  • computer-usable storage media including, but not limited to, disk storage, CD-ROM, optical storage, etc.
  • These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory result in an article of manufacture comprising instruction means, the instructions
  • the apparatus implements the functions specified in the flow or flow of the flowcharts and/or the block or blocks of the block diagrams.

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Abstract

本申请涉及无线通信技术领域,公开了一种调度终端的方法及装置,用以减少终端之间的干扰。集中设备根据终端的信息,确定第一小区的终端和第二小区的终端在第一时频资源上被调度时相互之间的干扰,确定是否允许在第一时频资源上调度所述第一小区的终端和所述第二小区的终端。可以减少终端之间的较强干扰。

Description

一种调度终端的方法及装置
相关申请的交叉引用
本申请要求在2020年11月09日提交中国专利局、申请号为202011238334.4、申请名称为“一种调度终端的方法及装置”的中国专利申请的优先权,其全部内容通过引用结合在本申请中。
技术领域
本申请实施例涉及无线通信技术领域,尤其涉及一种调度终端的方法及装置。
背景技术
在当前的通信系统中,在小区间的终端和小区内的终端之间,无线信号的相互干扰一直是限制目前通信系统频谱效率的一个最主要的问题。例如,在5G Massive MIMO系统中,采用波束赋形(如图1a所示的波束赋形示意图),降低数据流间的干扰,让用一个时频资源在不同的空间内得到重复利用(即空间复用技术),极大提升系统容量。天线数越多,波束就越窄、能量越集中,同一时频资源上通过空间复用可同时服务的终端就越多。由于波束能量更集中,虽然波束方向之外的邻区终端受到的干扰则更弱,但是,对波束方向上的相邻小区间的多终端的下行干扰会更严重,且干扰区域会随被调度终端的不同而动态变化。
基于此,如何解决多个终端间的相互干扰是需要解决的技术问题。
发明内容
本申请实施例提供一种调度终端的方法及装置,用以减少终端间的相互干扰。
第一方面,提供了一种调度终端的方法,集中设备获取多个终端各自的第一信息;所述多个终端包括第一小区的至少一个终端和第二小区的至少一个终端;所述多个终端为在第一时频资源上等待被调度的终端;所述第一信息用于确定任意两个终端在第一时频资源上被调度时相互之间的干扰。然后,集中设备根据第一小区的终端和第二小区的终端在第一时频资源上被调度时相互之间的干扰,确定是否允许在第一时频资源上调度所述第一小区的终端和所述第二小区的终端。
集中设备根据多个终端之间的干扰确定是否允许在同一时频资源上调度多个终端。这样在调度终端时,可以选择一部分终端允许调度,另一部分终端不允许调度,从而避免终端之间的干扰。
在一种可能的实现中,集中设备可以先根据所述多个终端在第一时频资源上被调度时相互之间的干扰,对所述多个终端进行分组;其中,针对任一终端,所述终端与至少一个第一终端在第一时频资源上被调度时相互之间的干扰,大于所述终端与第二终端在第一时频资源上被调度时相互之间的干扰,所述终端与所述第一终端位于同一组,所述终端与所述第二终端位于不同组。接下来,集中设备针对每一组进行如下处理:如果该组只包括一个小区的终端,则允许在第一时频资源上调度该组中的所述一个小区的终端,所述一个小 区为第一小区或第二小区。如果该组包括第一小区的第三终端和第二小区的第四终端,则允许在第一时频资源上调度该组中的第一小区的第三终端,不允许在第一时频资源上调度该组中的第二小区的第四终端;或者,不允许在第一时频资源上调度该组中的第一小区的第三终端,允许在第一时频资源上调度该组中的第二小区的第四终端。
在大概率的情况下,一个组内的终端之间的干扰较大,不同组间的终端之间的干扰较小。在对终端进行调度时,一个组内只选择出一个小区的终端允许被调度,其余小区的终端不允许被调度。这样选择方式,可以避免小区间有较大干扰的终端同时调度,进而可以减少小区间的终端之间的相互干扰。
在一种可能的实现中,所述集中设备向第一小区的调度设备发送第一指示信息,所述第一指示信息用于指示:所述第一小区中允许被调度的终端;和/或,所述集中设备向第二小区的调度设备发送第一指示信息,所述第一指示信息用于指示:所述第二小区中允许被调度的终端。
在一种可能的实现中,所述第一指示信息还可以用于指示:允许被调度的终端所在的组。例如,所述第一指示信息包括:小区中允许被调度的终端的标识和允许被调度的终端所在的组的标识。集中设备还可以将这种小区级别的粗粒度的调度选择结果告知调度设备,由调度设备来决定调度哪个终端,还可以提高调度灵活性。
在一种可能的实现中,集中设备可以在每一组的允许被调度的终端中,选择出该组的至少一个目标终端。然后,向第一小区的调度设备发送第二指示信息,所述第二指示信息用于指示:调度所述第一小区中的目标终端;和/或,所述集中设备向第二小区的调度设备发送第二指示信息,所述第二指示信息用于指示:调度所述第二小区中的目标终端。在大概率的情况下,一个组内的终端之间的干扰较大,不同组间的终端之间的干扰较小。在对终端进行调度时,一个组内只选择出一部分目标终端进行调度,其余终端不调度。这种选择方式,可以在一定程度上避免有较大干扰的终端同时调度,可以减少终端之间的相互干扰。
在一种可能的实现中,集中设备在每一组的允许被调度的终端中,根据每个允许被调度的终端的调度优先级,选择出该组的至少一个目标终端。通常目标终端为所述目标终端所在的组内调度优先级最高或较高的终端。
在一种可能的实现中,所述第二指示信息还用于指示:每个目标终端对应的第二时频资源;所述第二时频资源为所述第一时频资源的部分或全部,一个组中的多个目标终端各自对应的第二时频资源不同。为每个目标终端分配不同的第二时频资源,以便进行调度,这样即使调度多个目标终端,由于各个目标终端对应的时频资源不同,在调度时也不会产生干扰。
在一种可能的实现中,所述第一信息包括但不限于以下的一项或多项:信道状态、波束信号强度、接收信号强度指示、参考信号接收功率、参考信号接收质量、信号强度大于或等于设定阈值的波束的标识、信号强度小于或等于设定阈值的波束的标识。
在一种可能的实现中,所述第一信息还包括:调度优先级。
第二方面,提供了一种调度终端的方法,调度设备接收来自集中设备的第一指示信息,所述第一指示信息用于指示:允许被调度的终端,以及允许被调度的终端所在的组;所述调度设备在允许被调度的终端中选择一个或多个终端作为目标终端,并调度目标终端。
调度设备从集中设备处接收小区级别的粗粒度的调度选择结果,调度设备来决定调度 小区内的哪个终端,还可以提高调度灵活性。
在一种可能的实现中,当目标终端为多个时,所述多个目标终端所在的组不同。也就是针对一个小区,一个组内只允许该小区的一个终端被调度,这样可以避免有较大干扰的终端同时调度,进而可以减少终端之间的相互干扰。
在一种可能的实现中,一个组内,允许被调度的终端中调度优先级最高的终端为目标终端。
第三方面,提供了一种调度终端的方法,集中设备获取多个终端各自的第一信息;所述多个终端包括第一小区的至少一个终端和第二小区的至少一个终端;所述多个终端为在第一时频资源上等待被调度的终端;所述第一信息用于确定任意两个终端在第一时频资源上被调度时相互之间的干扰。然后,根据第一小区的终端和第二小区的终端在第一时频资源上被调度时相互之间的干扰,确定是否在第一时频资源上调度所述第一小区的终端和所述第二小区的终端。
集中设备根据多个终端之间的干扰确定是否在同一时频资源上调度多个终端。这样在调度终端时,可以选择一部分终端进行调度,另一部分终端不进行调度,从而避免终端之间的干扰。
在一种可能的实现中,集中设备根据所述多个终端在第一时频资源上被调度时相互之间的干扰,对所述多个终端进行分组;其中,针对任一终端,所述终端与至少一个第一终端在第一时频资源上被调度时相互之间的干扰,大于所述终端与第二终端在第一时频资源上被调度时相互之间的干扰,所述终端与所述第一终端位于同一组,所述终端与所述第二终端位于不同组。然后,在每一组的终端中,选择出该组的至少一个目标终端,所述目标终端为调度的终端。
在大概率的情况下,一个组内的终端之间的干扰较大,不同组间的终端之间的干扰较小。在对终端进行调度时,一个组内只选择出一部分目标终端进行调度,其余终端不调度。这种选择方式,可以在一定程度上避免有较大干扰的终端同时调度,可以减少终端之间的相互干扰。
在一种可能的实现中,集中设备还可以向第一小区的调度设备发送第二指示信息,所述第二指示信息用于指示:调度所述第一小区中的目标终端;和/或,所述集中设备向第二小区的调度设备发送第二指示信息,所述第二指示信息用于指示:调度所述第二小区中的目标终端。
在一种可能的实现中,所述第二指示信息还用于指示:每个目标终端对应的第二时频资源;所述第二时频资源为所述第一时频资源的部分或全部,一个组中的多个目标终端各自对应的第二时频资源不同。为每个目标终端分配不同的第二时频资源,以便进行调度,这样即使调度多个目标终端,由于各个目标终端对应的时频资源不同,在调度时也不会产生干扰。
在一种可能的实现中,所述第一信息包括但不限于以下的一项或多项:信道状态、波束信号强度、接收信号强度指示、参考信号接收功率、参考信号接收质量、信号强度大于或等于设定阈值的波束的标识、信号强度小于或等于设定阈值的波束的标识。
在一种可能的实现中,所述第一信息还包括:调度优先级。
第四方面,提供了一种调度终端的方法,调度设备接收来自集中设备的第二指示信息,所述第二指示信息用于指示:调度目标终端。然后,调度设备可以调度所述目标终端。
第二指示信息可以包括目标终端的标识,还可以包括调度标识。
第五方面,提供了一种通信装置,所述装置具有实现上述第一方面及第一方面任一可能的实现中的功能,或实现上述第二方面及第二方面任一可能的实现中的功能,或实现上述第三方面及第三方面任一可能的实现中的功能,或实现上述第四方面及第四方面任一可能的实现中的功能。这些功能可以通过硬件实现,也可以通过硬件执行相应的软件实现。所述硬件或软件包括一个或多个与上述功能相对应的功能模块。
第六方面,提供了一种通信装置,包括处理器和存储器;所述存储器,用于存储计算机程序指令;所述处理器,用于执行所述存储器中的部分或者全部计算机程序指令,当所述部分或者全部计算机程序指令被执行时,用于实现上述第一方面及第一方面任一可能的实现的方法中集中设备的功能,或实现上述第二方面及第二方面任一可能的实现中调度设备的功能,或实现上述第三方面及第三方面任一可能的实现的方法中集中设备的功能,或实现上述第四方面及第四方面任一可能的实现中调度设备的功能。
在一种可能的设计中,所述装置还可以包括收发器,所述收发器,用于发送所述处理器处理后的信号,或者接收输入给所述处理器的信号。所述收发器可以执行第一方面及第一方面任一可能的实现的方法中集中设备执行的发送动作或接收动作;或者,执行第二方面及第二方面任一可能的实现的方法中调度设备执行的发送动作或接收动作;或者,执行第三方面及第三方面任一可能的实现的方法中集中设备执行的发送动作或接收动作;或者,执行第四方面及第四方面任一可能的实现的方法中调度设备执行的发送动作或接收动作。
第七方面,提供了一种通信装置,包括处理器;所述处理器,用于执行计算机程序或指令,当所述计算机程序或指令被执行时,用于实现上述第一方面及第一方面任一可能的实现的方法中集中设备的功能,或者实现上述第二方面及第二方面任一可能的实现的方法中调度设备的功能,或者实现上述第三方面及第三方面任一可能的实现的方法中集中设备的功能,或者实现上述第四方面及第四方面任一可能的实现的方法中调度设备的功能。所述计算机程序或指令可以存储在所述处理器中,也可以存储在存储器中,所述存储器与所述处理器耦合。所述存储器可以位于所述通信装置中,也可以不位于所述通信装置中。
在一种可能的实现中,所述装置还包括:通信接口,所述通信接口,用于发送所述处理器处理后的信号,或者接收输入给所述处理器的信号。所述通信接口可以执行第一方面及第一方面任一可能的实现中集中设备执行的发送动作或接收动作,或者执行第二方面及第二方面任一可能的实现中调度设备执行的发送动作或接收动作,或者执行第三方面及第三方面任一可能的实现中集中设备执行的发送动作或接收动作,或者执行第四方面及第四方面任一可能的实现中调度设备执行的发送动作或接收动作。
第八方面,本申请提供了一种芯片系统,该芯片系统包括一个或多个处理器(也可以称为处理电路),所述处理器与存储器(也可以称为存储介质)之间电耦合;所述存储器可以位于所述芯片系统中,也可以不位于所述芯片系统中;所述存储器,用于存储计算机程序指令;所述处理器,用于执行所述存储器中的部分或者全部计算机程序指令,当所述部分或者全部计算机程序指令被执行时,用于实现上述第一方面及第一方面任一可能的实现的方法中集中设备的功能,或实现上述第二方面及第二方面任一可能的实现中调度设备的功能,或实现上述第三方面及第三方面任一可能的实现的方法中集中设备的功能,或实现上述第四方面及第四方面任一可能的实现中调度设备的功能。
在一种可能的设计中,所述芯片系统还可以包括输入输出接口,所述输入输出接口, 用于输出所述处理器处理后的信号,或者接收输入给所述处理器的信号。所述输入输出接口可以执行第一方面及第一方面任一可能的实现的方法中集中设备执行的发送动作或接收动作;或者,执行第二方面及第二方面任一可能的实现的方法中调度设备执行的发送动作或接收动作;或者,执行第三方面及第三方面任一可能的实现的方法中集中设备执行的发送动作或接收动作;或者,执行第四方面及第四方面任一可能的实现的方法中调度设备执行的发送动作或接收动作。
在一种可能的设计中,该芯片系统,可以由芯片构成,也可以包括芯片和其他分立器件。
第九方面,提供了一种计算机可读存储介质,用于存储计算机程序,所述计算机程序包括用于实现第一方面及第一方面任一可能的实现中的功能的指令,或用于实现第二方面及第二方面任一可能的实现中的功能的指令,或实现第三方面及第三方面任一可能的实现中的功能的指令,或用于实现第四方面及第四方面任一可能的实现中的功能的指令。
或者,一种计算可读机存储介质,用于存储计算机程序,所述计算机程序被计算机执行时,可以使得所述计算机执行上述第一方面及第一方面任一可能的实现的方法中集中设备执行的方法,或执行上述第二方面及第二方面任一可能的实现中调度设备执行的方法,或执行上述第三方面及第三方面任一可能的实现的方法中集中设备执行的方法,或执行上述第四方面及第四方面任一可能的实现中调度设备执行的方法。
第十方面,提供了一种计算机程序产品,所述计算机程序产品包括:计算机程序代码,当所述计算机程序代码在计算机上运行时,使得计算机执行上述第一方面及第一方面任一可能的实现中由集中设备执行的方法,或执行上述第二方面及第二方面任一可能的实现中由调度设备执行的方法,或执行上述第三方面及第三方面任一可能的实现中由集中设备执行的方法,或执行上述第四方面及第四方面任一可能的实现中由调度设备执行的方法。
第十一方面,提供了一种通信系统,所述通信系统包括执行上述第一方面及第一方面任一可能的实现的方法中的集中设备和执行上述第二方面及第二方面任一可能的实现的方法中的调度设备。或者,所述通信系统包括执行上述第三方面及第三方面任一可能的实现的方法中的集中设备和执行上述第四方面及第四方面任一可能的实现的方法中的调度设备。
上述第五方面至第十一方面的技术效果可以参照第一方面至第四方面中的描述,重复之处不再赘述。
附图说明
图1a为本申请实施例中提供的一种波束赋形示意图;
图1b为本申请实施例中提供的一种通信系统架构意图;
图2a、图2b和图2c分别为本申请实施例中提供的应用场景示意图;
图3为本申请实施例中提供的一种调度终端的过程示意图;
图4为本申请实施例中提供的一种调度终端的过程示意图;
图5为本申请实施例中提供的一种分组示意图;
图6为本申请实施例中提供的一种调度终端的过程示意图;
图7为本申请实施例中提供的一种调度终端的装置结构图;
图8为本申请实施例中提供的一种调度终端的装置结构图。
具体实施方式
下面将结合附图,对本申请实施例进行详细描述。
为便于理解本申请实施例的技术方案,下面将对本申请实施例提供的调度终端的方法的系统架构进行简要说明。可理解的,本申请实施例描述的系统架构是为了更加清楚的说明本申请实施例的技术方案,并不构成对于本申请实施例提供的技术方案的限定。
本申请实施例的技术方案可以应用于各种通信系统,例如:无线局域网(wireless local area network,WLAN)通信系统,长期演进(long term evolution,LTE)系统、LTE频分双工(frequency division duplex,FDD)系统、LTE时分双工(time division duplex,TDD)系统、通用移动通信系统(universal mobile telecommunication system,UMTS)、全球互联微波接入(worldwide interoperability for microwave access,WiMAX)通信系统、第五代(5th generation,5G)系统或新无线(new radio,NR),以及未来通信系统等。
为便于理解本申请实施例,接下来对本申请的应用场景进行介绍,本申请实施例描述的网络架构以及业务场景是为了更加清楚的说明本申请实施例的技术方案,并不构成对于本申请实施例提供的技术方案的限定,本领域普通技术人员可知,随着新业务场景的出现,本申请实施例提供的技术方案对于类似的技术问题,同样适用。
如图1b所示的通信系统,包括网络设备和终端,网络设备和终端之间可以利用空口资源进行无线通信。空口资源可以包括时域资源、频域资源、码域资源和空域资源中一个或多个。
一个网络设备服务的多个终端,在与该网络设备进行通信时,多个终端之间可能会存在干扰。例如,在图1b中,网络设备1服务UE1和UE2,UE1和UE2在同一时频资源上被调度时,两者之间可能会存在干扰。再例如,不同网络设备分别服务的终端,在与各自的网络设备进行通信时,多个终端之间也会存在干扰。例如,在图1b中,网络设备1服务UE3,网络设备2服务UE4,UE3和UE4由于位置关系,在同一时频资源上被调度时,两者之间也会产生干扰。另外,一个网络设备的覆盖范围内通常包括一个或多个小区,每个小区内存在一个或多个终端。相互之间存在干扰的终端可能是一个小区内的终端,也可能是不同小区内的终端。
为了解决终端之间的干扰,本申请提出了多种调度终端的方案。核心思想为:集中设备通过终端的信道状态、波束信号强度、接收信号强度指示、参考信号接收功率、参考信号接收质量等信息,确定任意两个终端之间的干扰情况。在存在干扰或较大干扰的终端中,在同一时频资源上只调度一部分终端,另一部分终端不被调度,来减少终端之间的干扰。例如,终端a、终端b和终端c,两两之间均存在干扰或较大干扰,可以在这三个终端中只调度一个终端,其余两个终端不调度。例如,只调度终端a,不调度终端b和终端c,由于在调度终端a时,终端b和终端c没有被调度,所以,终端b和终端c一定不会对终端a造成干扰,则减少了终端之间的干扰。
本申请中的调度方案可以适用于多种应用场景,接下来介绍:在不同的应用场景中,集中设备和调度设备的关联关系。在本申请中,调度设备为“能够对终端进行调度的设备”,也可以理解为“为终端服务的网络设备”。以下多个示例仅是举例说明,不造成对本申请的限定。
在一种示例中,如图2a所示,本申请适用于一个基站的场景,一个基站下有多个小区,即每个基站服务的终端之间的干扰情况单独考虑,与其它基站无关。在该场景中,集中设 备为基站,调度设备也是基站。
在一种示例中,如图2b所示,本申请适用于多个基站的场景,即多个基站服务的终端之间的干扰情况综合考虑。在该场景中,集中设备为一个基站,调度设备为另外的基站。具体的,如图2b所示,多基站场景中,主基站和一个或多个辅基站可以形成一个协作簇,主基站和辅基站之间可以通过Xn/X2接口进行通信。集中设备可以是主基站,调度设备可以是辅基站。
在一种示例中,如图2c所示,本申请适用于CU和DU分离的场景,CU和DU可以通过前传或后传的方式进行通信。集中设备为CU,调度设备为DU;或者集中设备为CU,调度设备也为CU。
在一种示例中,本申请适用于C-RAN架构的场景,集中设备可以为BBU,调度设备可以为AAU;或者,集中设备为BBU,调度设备也为BBU。
在一种示例中,本申请也可以适用于多AP协作的场景,集中设备可以是AP,调度设备可以是另外的AP。
为便于理解本申请实施例,以下对本申请实施例的部分用语进行解释说明,以便于本领域技术人员理解。
1)网络设备,具有能够为终端设备提供随机接入功能的设备或可设置于该设备的芯片,该设备包括但不限于:演进型节点B(evolved Node B,eNB)、无线网络控制器(radio network controller,RNC)、节点B(Node B,NB)、基站控制器(base station controller,BSC)、基站收发台(base transceiver station,BTS)、家庭基站(例如,home evolved NodeB,或home Node B,HNB)、基带单元(baseband unit,BBU),无线保真(wireless fidelity,WIFI)系统中的接入点(access point,AP)、无线中继节点、无线回传节点、传输点(transmission and reception point,TRP或者transmission point,TP)等,还可以为5G,如,NR,系统中的gNB,或,传输点(TRP或TP),5G系统中的基站的一个或一组(包括多个天线面板)天线面板,或者,还可以为构成gNB或传输点的网络节点,如基带单元(BBU),集中单元(CU,central unit),或,分布式单元(DU,distributed unit)等。
2)终端设备,又称之为用户设备(user equipment,UE)、移动台(mobile station,MS)、移动终端(mobile terminal,MT)、终端等,是一种向用户提供语音和/或数据连通性的设备。例如,终端设备包括具有无线连接功能的手持式设备、车载设备等。目前,终端设备可以是:手机(mobile phone)、平板电脑、笔记本电脑、掌上电脑、移动互联网设备(mobile internet device,MID)、可穿戴设备,虚拟现实(virtual reality,VR)设备、增强现实(augmented reality,AR)设备、工业控制(industrial control)中的无线终端、无人驾驶(self-driving)中的无线终端、远程手术(remote medical surgery)中的无线终端、智能电网(smart grid)中的无线终端、运输安全(transportation safety)中的无线终端、智慧城市(smart city)中的无线终端,或智慧家庭(smart home)中的无线终端,或具有车与车(Vehicle-to-Vehicle,V2V)公共的无线终端等。
接下来将结合附图对方案进行详细介绍。附图中以虚线标识的特征或内容可理解为本申请实施例的可选操作或者可选结构。
在实际应用中,可以在每个调度周期中均执行本申请的方案,一个调度周期例如可以是一个传输时间间隔(transmission time interval,TTI)或多个TTI。
另外,本申请的“允许调度”与“允许被调度”是同一含义;“调度”与“被调度”也是同一 含义。
如图3所示,提供了一种调度终端的过程示意图,包括以下步骤:
步骤301:集中设备获取多个终端各自的第一信息,所述第一信息用于确定任意两个终端在第一时频资源上被调度时相互之间的干扰。
所述多个终端可以位于同一小区内,也可以位于不同小区。以两个小区:第一小区和第二小区为例,所述多个终端可以包括第一小区的一个或多个终端,以及第二小区的一个或多个终端。以三个小区:第一小区、第二小区和第三小区为例,所述多个终端可以包括第一小区的一个或多个终端,第二小区的一个或多个终端,以及第三小区的一个或多个终端。
本申请的第一时频资源可以是用资源元素(resource element,RE)的数量,或预编码资源块组(precoding resource block group,PRG)的数量、或物理资源块(physical resource block,PRB)的数量、或资源块组(resource block group,RBG)或子带(subband或bandwidth part,BWP)表示。第一时频资源可以为当前调度周期内的调度带宽。
步骤301中获取第一信息的终端为等待被调度的终端,“等待被调度”可以理解为该终端与网络设备之间有数据需要传输。在实际应用中,每个小区中除了等待被调度的终端,还可以包括非等待被调度的终端。
所述第一信息可以包括但不限于以下信息中的一项或多项:信道状态信息、波束信号强度、接收信号强度指示(received signal strength indicator,RSSI)、参考信号接收功率(reference signal received power,RSRP)、参考信号接收质量(reference signal received quality,RSRQ),信号强度大于或等于设定阈值的波束的标识、信号强度小于或等于设定阈值的波束的标识。信道状态信息可以是信道增益矩阵,例如网络设备p到终端i的信道增益矩阵H i,p,也可以是H i,p的最大奇异值对应的右奇异向量h i,p,h i,p代表了网络设备p到终端i最强的窄波束方向。根据第一信息确定终端之间在第一时频资源上被调度时相互之间的干扰的示例后续进行详细介绍。
可选的,所述第一信息还可以包括:调度优先级,所述调度优先级为终端i的瞬时传输速率和历史平均传输速率的比值,可以用p i表示。
接下来介绍集中设备获取终端的第一信息的几种示例:
一种示例中,终端向集中设备上报第一信息,这种示例通常适用于:集中设备为调度设备的场景,例如图2a的场景。
一种示例中,终端向调度设备上报第一信息,调度设备再将终端的第一信息上报给集中设备。这种示例通常适用于:集中设备与调度设备不同的场景,例如图2b和图2c的场景。
另外,信道状态信息、波束信号强度、接收信号强度指示RSSI、参考信号接收功率RSRP、参考信号接收质量RSRQ等信息,通常为下行的信息。这些信息可以是终端测量后,上报给调度设备(即为终端服务的网络设备),也可以是调度设备主动测量上行的信息后,利用上下行信道互易得到下行的信息。
步骤302:集中设备根据第一小区的终端和第二小区的终端在第一时频资源上被调度 时相干之间的干扰,确定是否在第一时频资源上调度所述第一小区的终端和所述第二小区的终端。
一种示例中,设置一个干扰阈值,根据干扰阈值,确定在第一时频资源上调度哪些终端。上文介绍了第一小区包括一个或多个等待被调度的终端,第二小区包括一个或多个等待被调度的终端。以第一小区的任一终端1和第二小区的任一终端2为例,介绍是否调度这两个终端的具体示例。在终端1和终端2在第一时频资源上被调度时,相互之间的干扰大于或等于所述干扰阈值的情况下,则确定不在第一时频资源上调度所述终端1和所述终端2。例如,调度终端1,不调度终端2。再例如,调度终端2,不调度终端1。在终端1和终端2在第一时频资源上被调度时,相互之间的干扰小于或等于所述干扰阈值的情况下,确定在第一时频资源上调度所述终端1和所述终端2。
当所述多个终端位于3个小区、4个小区、甚至更多小区时,是否允许终端调度的情况仍然可以根据所述干扰阈值确定。示例的,针对任意两个终端来说,集中设备可以根据两个终端在第一时频资源上被调度时相互之间的干扰,确定是否在第一时频资源上调度所述两个终端。进一步的,集中设备可以综合考虑任意两个终端之间的干扰情况,在所述多个终端中确定出在第一时频资源上调度的终端。
在另一种示例中,集中设备确定每个终端所在的组。具体的,集中设备根据第一小区的终端和第二小区的终端在第一时频资源上被调度时相互之间的干扰,对所述多个终端划分组。根据分组情况,确定在第一时频资源上调度哪些终端。
在对终端进行分组时,满足以下分组特性:一个终端只能位于一个组中,也就是不同组中的终端不同。针对任一终端,所述终端与至少一个第一终端在第一时频资源上被调度时相互之间的干扰,大于所述终端与第二终端在第一时频资源上被调度时相互之间的干扰,所述终端与所述第一终端位于同一组,所述终端与所述第二终端位于不同组。该分组特性可以理解为:在大概率情况下,一个组内的多个终端在同一时频资源上被调度时相互之间的干扰是较大的,不同组间的多个终端在同一时频资源上被调度时相互之间的干扰是较小的。或者说,在大概率情况下,一个组内的多个终端在同一时频资源上被调度时相互之间的干扰,大于不同组间的多个终端在同一时频资源上被调度时相互之间的干扰。
假设,小区a有8个终端,分别为终端a1至终端a8,小区b有8个终端,分别为终端b1至终端b8。将这16个终端总共分为5组,具体的分组情况如表1所示。
第一组包括小区a的终端a1、终端a5和终端a8;
第二组包括小区b的终端b1和终端b2;
第三组包括小区a的终端a2和终端a6,以及小区b的终端b4和终端b6;
第四组包括小区a的终端a3,以及小区b的终端b3、终端b5和终端b8;
第五组包括小区a的终端a4和终端a7,以及小区b的终端b7。
表1
分组 小区a 小区b
第一组 a1、a5、a8
第二组 b1、b2
第三组 a2、a6 b4、b6
第四组 a3 b3、b5、b8
第五组 a4、a7 b7
在上述表1中,一个组内的多个终端在第一时频资源上被调度时相互之间的干扰,大于不同组间的多个终端在第一时频资源上被调度时相互之间的干扰。例如,终端a1和终端a5之间的干扰,大于终端a1和终端a2之间的干扰。再例如,终端a3和终端b3之间的干扰,大于终端b3和终端b7之间的干扰。
对终端划分组的具体过程后续进行详细介绍。
在对终端分组后,集中设备在每一组的终端中,选择出该组的至少一个目标终端,所述目标终端为被调度的终端。本申请中,将“被调度的终端”定义为目标终端。
例如可以根据一个组内的终端的优先级,选择出该组的一个或多个目标终端。
例如,一个组内只选择出一个目标终端。以上述表1为例,集中设备可以在这5组中分别选择出一个终端作为目标终端,则可以选择出5个目标终端。
在一种示例中,集中设备可以在一个组内选择调度优先级最高的终端作为目标终端,也就是目标终端为所述目标终端所在的组中调度优先级最高的终端。也可以是考虑多个小区的全局负载来确定目标终端,达到小区间负载均衡的目的。在该示例中,集中设备根据多个终端在第一时频资源上被调度时相互之间的干扰,对终端划分组。在大概率的情况下,一个组内的终端之间的干扰较大,不同组间的终端之间的干扰较小。在对终端进行调度时,一个组内只选择出一个目标终端进行调度,其余终端不调度。这种选择方式,可以避免有较大干扰的终端同时调度,可以减少终端之间的相互干扰。并且,在多个终端位于多个小区内时,不但可以解决小区内的终端之间的相互干扰,也可以解决小区间的终端之间的相互干扰。
在另一示例中,第一时频资源大于终端传输数据实际用到的时频资源。如果在一次调度中,一个组中只调度一个目标终端,则会存在资源浪费。基于此,集中设备还可以根据每个终端传输数据所需的资源大小,尽量选择出多个终端在不同的时频资源上进行调度。可以用资源元素(resource element,RE)的数量,或预编码资源块组(precoding resource block group,PRG)的数量,或物理资源块(physical resource block,PRB)的数量或资源块组(resource block group,RBG)表示资源大小。例如,第一时频资源为100个PRB,一个目标终端a传输数据可能只需要60个PRB,甚至更少。集中设备可以在调度目标终端a时,也可以调度目标终端b,为目标终端b分配剩余的40个PRB,以提高资源利用率。
可选的,上文介绍的集中设备获取的终端的第一信息中还可以包括终端传输数据所需的资源大小。
针对每一组来说,集中设备可以根据该组内的各个终端传输数据所需的资源大小,在该组内选择出一个或多个目标终端,并确定出每个目标终端对应的第二时频资源,以便调度设备在第二时频资源上对目标终端进行调度。在一个组中,不同的目标终端各自对应的第二时频资源不同,第二时频资源为第一时频资源的部分或全部。
进一步地,集中设备可以根据该组内的各个终端传输数据所需的资源大小,以及各个终端的调度优先级,在该组内选择出一个或多个目标终端,并确定出每个目标终端对应的第二时频资源。一种示例中,一个组内,调度优先级最高的终端为目标终端,或者调度优先级较高的几个终端为目标终端。
步骤303:集中设备可以向目标终端的调度设备发送第二指示信息,所述第二指示信息用于指示:调度所述目标终端。相应的,调度设备接收第二指示信息,并调度所述目标终端。
例如,当第一小区包括目标终端时,所述集中设备向第一小区的调度设备发送第二指示信息,所述第二指示信息用于指示:调度所述第一小区中的目标终端。再例如,当第二小区包括目标终端时,所述集中设备向第二小区的调度设备发送第二指示信息,所述第二指示信息用于指示:调度所述第二小区中的目标终端。其余小区类似,不再重复赘述。
一种示例中,所述第二指示信息包括目标终端的标识信息。也就是集中设备通过向调度设备发送目标终端的标识,来告知调度设备,哪些终端能够被调度;未发送标识的终端即不能调度的终端。可选的,所述第二指示信息还可以包括调度标识。
可选的,第二指示信息还可以指示每个目标终端对应的第二时频资源,第二时频资源用于调度所述目标终端。示例的,第二指示信息中还可以包括:每个目标终端对应的第二时频资源的信息。在一个组中,不同的目标终端各自对应的第二时频资源不同,以便调度设备在不同的时频资源上调度多个目标终端,这多个目标终端之间也不会有干扰或不会有较强的干扰。
需要注意的是,集中设备与调度设备可能相同,也可能不同。如果某个目标终端的调度设备为集中设备,则集中设备可以直接对该目标终端进行调度。
例如,第一小区为所述集中设备的小区,集中设备对第一小区内的目标终端进行调度。再例如,集中设备与第二小区的调度设备不同,集中设备向第二小区的调度设备发送第二信息,所述第二信息用于指示第二小区内的目标终端,所述第二小区非所述集中设备的小区。
结合表1的示例,第一组中选择出的目标终端为终端a1,第二组选择出的目标终端为终端b2,第三组选择出的目标终端为终端a6,第四组选择出的目标终端为终端b8,第五组选择出的目标终端为终端a7。假设,小区a为集中设备的小区,小区b非集中设备的小区。则集中设备调度终端a1、终端a6、终端a7,并且集中设备向小区b的调度设备通知终端b2和终端b8,以便小区b的调度设备调度终端b2和终端b8。
可选的,集中设备在向调度设备发送第二指示信息,来指示调度小区中的目标终端时,除了指示目标终端外,还可以指示不调度的终端。在这种情况下,调度标识为一个必选项。所述调度标识可以通过1bit指示,例如1bit为0时,表示不允许被调度,这1bit为1时,表示允许被调度。这样调度设备就可以根据调度标识,确定出目标终端。
接下具体介绍划分组的过程,具体的,集中设备可以根据第一信息,确定任意两个终端之间的干扰系数,通过干扰系数划分组。
在一种示例中,终端i对终端j的干扰系数w i,j为:
Figure PCTCN2021127605-appb-000001
其中,p代表为终端i服务的网络设备,q代表为终端j服务的网络设备,p和q可以是相同的、或不同的网络设备。h i,p代表网络设备p到终端i的信道增益矩阵(H i,p)的最大奇异值对应的右奇异向量h i,p,h i,p可以代表网络设备p到终端i最强的窄波束方向。
终端i对终端j的干扰系数表示网络设备p向终端i发送的下行信号对终端j的干扰大小的 估计。
在另一示例中,终端i对终端j的干扰系数w i,j为:
Figure PCTCN2021127605-appb-000002
其中,p代表为终端i服务的网络设备,q代表为终端j服务的网络设备,p和q可以是相同的、或者不同的网络设备。∑r i,p表示向量r i,p各个元素之和。
一种示例中,向量r i,p表示各个波束方向的信号强度。向量中的每个元素对应一个波束方向的信号强度。该信号强度可以通过参考信号接收功率、或接收强度、或接收质量等信息测量得到,也可以通过网络设备p到终端i的信道增益矩阵(H i,p)计算得到。具体的过程属于现有技术,不进行详细赘述。如果某些波束方向的信号强度小于某个阈值,可将该波束方向的信号强度设为零。
一种示例中,向量r i,p表示各个波束方向的信号强度标识,向量中的每个元素对应一个波束方向的信号强度标识。例如,信号强度标识为0或1。当信号强度小于或等于某个阈值,则信号强度标识为0;否则,信号强度标识为1。信号强度标识也可以是1、2等其它数值,不进行限制。第一信息中可以包括信号强度大于或等于设定阈值的波束的标识、和/或,信号强度小于或等于设定阈值的波束的标识,集中设备根据这些波束的标识就可以确定出对应的信号强度标识。
需要注意的是,终端i对终端j的干扰系数,与终端j对终端i的干扰系数不同。假设有10个终端,在计算这10个终端之间的干扰系数时,可以得出一个10*10的矩阵,这10*10的矩阵中有100个干扰系数,10*10的矩阵的对角线是终端i对终端i的干扰,或者终端j对终端j的干扰,干扰系数是1。10*10的矩阵中除对角线的位置外的其余位置的数值可以表示一个终端对另一个终端的干扰系数。
接下来介绍根据上述计算出的任意两个终端间的干扰系数,对终端划分组的过程。
具体可以采用谱聚类方法、k-means方法等划分。
例如,将终端分组问题数学建模成一个图分割问题:将终端的干扰关系构造成一个无向赋权图
Figure PCTCN2021127605-appb-000003
其中
Figure PCTCN2021127605-appb-000004
是图
Figure PCTCN2021127605-appb-000005
的顶点集合,每个顶点代表一个待调度终端,终端优先级p i可作为对应顶点i的点权重;ε是图
Figure PCTCN2021127605-appb-000006
的两两顶点间的边的集合,以对应终端之间的干扰系数w ij作为边权重。将图
Figure PCTCN2021127605-appb-000007
分割为M个没有公共顶点的子图{C 1,…,C M},满足这M个子图之间的加权割之和最小,可用如下目标函数表示:
Figure PCTCN2021127605-appb-000008
划分结果示意如图5,三个圈内的顶点集合表示三个分割后子图,同一个子图内的边 权重(实线)较大,不同子图间的边权重(虚线)较小。达到该图分割效果的目标函数不唯一。根据多个数值划分组的过程可以参照现有的技术方案,此处不再详细赘述。
由于对终端进行分组是实时的,且根据窄波束之间的相关性得到的,所以本申请能动态的协调相邻小区之间的下行传输的波束方向,大大减小了小区间的相互干扰,以提升系统的频谱效率。
接下来参见图4所示,再介绍一种调度终端的过程,需要注意的是,在步骤302中,确定是否在第一时频资源上调度所述第一小区的终端和所述第二小区的终端,而在步骤402中,确定是否允许在第一时频资源上调度所述第一小区的终端和所述第二小区的终端。需要注意的是,“允许被调度”与“被调度”是两个不同的概念。“允许被调度”是集中设备在所有的终端中先筛选出部分终端作为“被调度”的侯选终端,“被调度”的终端是实际调度的终端,“被调度”的终端是“允许被调度”的终端中的一部分。
图4包括以下步骤:
步骤401:集中设备获取多个终端各自的第一信息,所述第一信息用于确定任意两个终端在第一时频资源上被调度时相互之间的干扰。步骤401的过程与步骤301的过程相同,重复之处不再赘述。
步骤402:集中设备根据第一小区的终端和第二小区的终端在第一时频资源上被调度时相干之间的干扰,确定是否允许在第一时频资源上调度所述第一小区的终端和所述第二小区的终端。
一种示例中,设置一个干扰阈值,通过干扰阈值确定允许在第一时频资源上调度哪些终端。这个示例步骤302中的过程类似,仅是将步骤302中的“确定调度”,改为“确定是否允许调度”,接下来具体介绍:
上文介绍了第一小区包括一个或多个等待被调度的终端,第二小区包括一个或多个等待被调度的终端。以第一小区的任一终端1和第二小区的任一终端2为例,介绍是否允许调度这两个终端的具体示例。在终端1和终端2在第一时频资源上被调度时,相互之间的干扰大于或等于所述干扰阈值的情况下,则确定不允许在第一时频资源上调度所述终端1和所述终端2。例如,集中设备允许调度终端1,不允许调度终端2。再例如,集中设备允许调度终端2,不允许调度终端1。在终端1和终端2在第一时频资源上被调度时相互之间的干扰小于或等于所述干扰阈值的情况下,则确定允许在第一时频资源上调度所述终端1和所述终端2。
当所述多个终端位于3个小区、4个小区、甚至更多小区时,是否调度终端的情况仍然可以根据所述干扰阈值确定。示例的,针对任意两个终端来说,集中设备可以根据两个终端在第一时频资源上被调度时相互之间的干扰,确定是否允许在第一时频资源上调度所述两个终端。进一步的,集中设备可以综合考虑任意两个终端之间的干扰情况,在所述多个终端中确定出允许在第一时频资源上调度的终端。
步骤403:在确定出允许调度的终端后,集中设备可以将允许调度的终端下发给各个调度设备。
示例的,集中设备还可以向小区的调度设备发送第一指示信息,相应的,小区的调度设备接收来自集中设备的第一指示信息,所述第一指示信息用于指示:该小区中允许被调度的终端。进一步的,调度设备可以在允许被调度的终端中选择目标终端进行调度。调度设备可以将该允许被调度的终端作为目标终端,也可以是在允许被调度的终端中选择优先 级最高或较高的一个或多个终端作为目标终端。
例如,当确定允许被调度的终端中包括第一小区的终端时,集中设备可以向第一小区的调度设备发送第一指示信息,所述第一指示信息用于指示:所述第一小区中允许被调度的终端。再例如,当确定允许被调度的终端中包括第二小区的终端时,集中设备可以向第二小区的调度设备发送第一指示信息,所述第一指示信息用于指示:所述第二小区中允许被调度的终端。其余小区类似,不再重复介绍。
所述第一指示信息可以包括允许被调度的终端的标识,也就是集中设备通过向调度设备发送允许被调度的终端的标识,来告知调度设备,哪些终端允许被调度;未发送标识的终端即不允许被调度的终端。可选的,第一指示信息还可以包括允许被调度标识。
另外,集中设备在向小区的调度设备发送第一指示信息,来指示小区中允许被调度的终端时,除了指示允许被调度的终端外,还可以指示不允许被调度的终端。在这种情况下,允许被调度标识为一个必选项。所述允许被调度标识可以通过1bit指示,例如1bit为0时,表示不允许被调度,这1bit为1时,表示允许被调度。这样调度设备就可以根据每个终端对应的允许被调度标识,确定出允许被调度的终端。
需要注意的是,集中设备与调度设备可能相同,也可能不同。如果某个允许被调度的终端的调度设备为集中设备,则集中设备无需针对该允许被调度的终端发送第一指示信息。
接下来再结合图6,介绍一种调度终端的过程。在图6的示例中,通过对终端分组,确定出允许被调度的终端。图6中的步骤602和步骤603为上述步骤402的一种示例。图6的示例与图3的示例的不同之处在于:在图3的示例中,集中设备决定哪些终端被调度、哪些终端不被调度,并将终端级别调度结果告知给调度设备。相应的,调度设备根据最终的调度结果,对终端进行调度即可。在图6的示例中,集中设备根据终端的第一信息,对终端划分组,在一个组中,只允许一个小区的终端被调度,其余小区的终端不允许被调度。集中设备将这种小区级别的粗粒度的调度选择结果告知给调度设备,由调度设备决定调度小区内的哪个终端。这种方式可以提高调度灵活性。图3和图6的示例的其余技术细节相同,可以相互参考。
步骤601:集中设备获取多个终端各自的第一信息,所述第一信息用于确定任意两个终端在第一时频资源上被调度时相互之间的干扰。步骤601的过程与步骤301、步骤401的过程相同,重复之处不再赘述。
步骤602:集中设备确定每个终端所在的组。具体的,集中设备根据所述多个终端在第一时频资源上被调度时相互之间的干扰,对所述多个终端划分组。根据分组,确定允许在第一时频资源上调度哪些终端。分组的过程可以参照上文的介绍,不再重复描述。
步骤603:集中设备确定每个组中允许被调度的终端。
具体的,集中设备在对终端分组后,可以针对每一组进行如下处理:
如果该组只包括一个小区的终端,则允许在第一时频资源上调度该组中的所述一个小区的终端(即该组中的所有终端)。如果有两个小区:第一小区和第二小区为例,该组中可以只包括第一小区的终端,也可以只包括第二小区的终端。
如果该组包括多个小区的终端,则允许在第一时频资源上调度该组中的一个小区的终端,不允许在第一时频资源上调度该组中的其余小区的终端。
以该组包括两个小区的终端为例进行说明:如果该组包括第一小区的一个或多个第三终端和第二小区的一个或多个第四终端,则允许在第一时频资源上调度该组中的第一小区 的第三终端,不允许在第一时频资源上调度该组中的第二小区的第四终端;或者,不允许在第一时频资源上调度该组中的第一小区的第三终端,允许在第一时频资源上调度该组中的第二小区的第四终端。此处将第一小区中的等待被调度的终端中位于该组内的终端定义为第三终端,将第二小区中的等待被调度的终端中位于该组内的终端定义为第四终端。第三终端可以是第一小区中等待被调度的终端中的部分终端或全部终端。第四终端可以是第二小区中等待被调度的终端中的部分终端或全部终端。
上述确定允许被调度的终端的过程,也可以看作是确定每个终端的类别的过程。此处的类别分为两种,分别为第一类别和第二类别,第一类别用于指示允许被调度,第二类别用于指示不允许被调度。
在一种示例中,当一个组包括一个小区的终端时,该小区的终端允许被调度,也就是该小区内的终端的类别均为第一类别。在该示例中,当调度某个小区的终端时,不会对其它小区的终端产生干扰或产生较强干扰,则该小区的终端允许被调度。在表1的示例中,第一组中只有一个小区a,第二组中只有一个小区b,则第一组中的小区a和第二组中的小区b中的终端均允许被调度,即终端的类别均为第一类别(可参见以下表2所示)。
在一种示例中,当一个组包括多个小区的终端时,则在该组内,只有一个小区的终端允许被调度(终端的类别为第一类别),其余的小区的终端不允许被调度(终端的类别为第二类别)。在该示例中,由于只允许一个小区的终端被调度,则不会产生小区间的干扰。在表1的示例中,第三组中包括小区a和小区b两个小区的终端,可以选择任意一个小区作为允许终端被调度的小区,则另一小区为不允许终端被调度的小区。
一个组内的哪个小区内的终端允许被调度(即终端的类别为第一类别),哪个小区内的终端不允许被调度(即终端的第二类别),可以根据该组内的终端的调度优先级确定,也可以根据该组中的每个小区内的终端的数量确定,也可以是两者结合确定。
在一种示例中,可以根据一个组内的每个终端的调度优先级,确定该小区内的终端是否允许被调度,也就是确定终端的类别是第一类别还是第二类别。例如,一组中,优先级最高的终端所在的小区内的每个终端均允许被调度(即终端的类别为第一类别)。
在一种示例中,可以根据一个组内的每个小区内的终端数量,确定该小区内的终端是否允许被调度。例如,一组中,终端数量最多的小区内的每个终端均允许被调度(即终端的类别为第一类别)。
在一种示例中,也可以根据一个组内的每个终端的调度优先级和每个小区内的终端数量,两者结合确定小区的终端是否允许被调度。例如,先考虑终端数量最多,当至少两个小区的终端数量相同时,可以再考虑终端的调度优先级,将调度优先级最高的终端所在的小区确定为允许终端被调度的小区。再例如,先考虑小区内终端的调度优先级,当至少两个小区的最高调度优先级的终端的调度优先级相同时,可以再考虑小区内终端的数量,将终端数量最多的小区确定为允许终端被调度的小区。
接下来结合上述表1的示例,在表2中给出了一种确定每个组中的每个小区内的终端是否允许被调度(也就是对终端划分的类别)的结果。
在第三组中,小区a中包括2个终端,小区b中也包括2个终端,则可以根据终端的调度优先级确定是否允许被调度。例如,第三组中小区a中的终端a2的调度优先级最高,小区b中的终端b4的调度优先级最高,且终端a2的调度优先级高于终端b4的调度优先级,则在第三组中,小区a中的终端允许被调度,小区b中的终端不允许被调度。
在第四组中,小区b的终端数量大于小区a的终端数量,则小区a的终端不允许被调度,小区b的终端允许被调度。
在第五组中,小区a的终端数量大于小区b的终端数量,则小区a的终端允许被调度,小区b的终端不允许被调度。
表2
Figure PCTCN2021127605-appb-000009
表2仅是一种示例,不造成对本申请的限定。
另外,在考虑调度优先级时,也可以考虑小区内的每个终端的调度优先级,而不是只用最高的调度优先级进行比较。例如,可以给每个调度优先级分配权重,可以确定每个小区的权重平均值,根据权重平均值,确定一个组中哪个小区的终端允许被调度,哪个小区的终端不允许被调度。
在另一种示例中,集中设备还可以结合每个小区内上报的终端的数量,确定每个小区内的终端是否允许被调度。
由于小区级别的粗粒度的调度选择属于集中式算法,拥有各小区的全局负载信息,所以能自适应的调节各小区的调度终端数目,达到小区间负载均衡的目的。
进一步,可选的,集中设备还可以对第一类别进行更细致的划分,例如,划分为第一子类和第二子类。例如,当一个组包括一个小区的终端时,所述小区内的终端的第一类别为第一子类;当一个组包括多个小区的终端时,所述组内的一个小区的终端的第一类别为第二子类。例如,第一组中的a1、a5、a8和第二组中的b1、b2的类别均为第一子类。第三组中的a2、a6,第五组中的a4、a7和第四组中的b3、b5、b8的类别均为第二子类。
此处的第一子类也可以理解为无干扰类别,第二子类也可以理解为低干扰类别,第二类别也可以理解为高干扰类别。
通过将终端的类别进行更细致的划分,在调度终端时,可以全方位考虑多种因素,以符合当前的业务需求。例如,调度设备可以根据三种类别,优先调度无干扰类别的终端,其次调度低干扰类别的终端,在某些特殊情况下,也可以调度高干扰类别的终端。再例如,对于无干扰类别的终端,可以采用高功率传输数据;对于低干扰类别的终端,可以采用低功率传输数据;对于高干扰类别的终端,可以不进行调度,也可以采用更低的功率传输数据。
步骤604:在确定出每个组中的允许被调度的终端后,集中设备可以将允许被调度的终端下发给各个调度设备。
步骤604与步骤403的不同之处在于,在步骤604中,第一指示信息还可以用于指示小区中的每个允许被调度的终端所在的组。
示例的,集中设备还可以向小区的调度设备发送第一指示信息,相应的,小区的调度 设备接收来自集中设备的第一指示信息,所述第一指示信息用于指示:该小区中允许被调度的终端,以及该小区中的每个允许被调度的终端所在的组。
例如,当确定允许被调度的终端中包括第一小区的终端时,集中设备可以向第一小区的调度设备发送第一指示信息,相应的,第一小区的调度设备接收来自集中设备的第一指示信息,所述第一指示信息用于指示:第一小区中允许被调度的终端,以及第一小区中的每个允许被调度的终端所在的组。例如,所述第一指示信息包括第一小区中的各个允许被调度的终端的标识,以及各个终端所在的组的标识。
例如,当确定允许被调度的终端中包括第二小区的终端时,集中设备可以向第二小区的调度设备发送第一指示信息,相应的,第二小区的调度设备接收来自集中设备的第一指示信息,所述第一指示信息用于指示:第二小区中允许被调度的终端,以及第二小区中的每个允许被调度的终端所在的组。例如,所述第一指示信息包括第二小区中的各个允许被调度的终端的标识,以及各个终端所在的组的标识。
可选的,第一指示信息还可以包括允许被调度标识。
可选的,集中设备在向小区的调度设备发送第一指示信息,来指示小区中允许被调度的终端时,除了指示允许被调度的终端外,还可以指示不允许被调度的终端。也就是集中设备向小区的调度设备发送小区内所有终端(既包括允许调度的,也包括不允许调度的)各自的信息。在这种情况下,第一指示信息不但要用于指示所述终端所在的组的,还要用于指示所述终端的类别,即指示所述终端是允许调度的终端(第一类别)还是不允许调度的终端(第二类别)。此处的第一类别与允许被调度标识可以是一个标识。
相应的,所述调度设备接收来自所述集中设备发送的第一指示信息,所述第一指示信息用于指示所述终端所在的组,以及指示所述终端的类别,所述类别为第一类别或第二类别。这样调度设备可以根据终端的类别,选择出允许调度的终端。
需要注意的是,集中设备与调度设备可能相同,也可能不同。如果某个允许被调度的终端的调度设备为集中设备,则集中设备无需针对该允许被调度的终端发送第一指示信息。
步骤605:调度设备在允许被调度的终端中确定目标终端,进一步地,调度设备对目标终端进行调度。
以第一小区为例进行说明,其余的每个小区类似。
第一小区的调度设备(可能是集中设备,也可以是非集中设备外的其它设备)确定第一小区内的目标终端;进一步的,调度设备对第一小区内的目标终端进行调度。
当第一小区内的目标终端为一个时,该目标终端可以是第一小区内的任一允许被调度的终端。
以表2为例,如果第一小区为小区a,第一小区内的终端包括:终端a1-终端a8,第一小区中允许被调度(第一类别)的终端包括:a1、a5、a8、a2、a6、a4、a7。第一小区内被调度的目标终端为a1、a5、a8、a2、a6、a4、a7中的任一个。如果第一小区为小区b,第一小区内的允许被调度(第一类别)的终端为b1、b2、b3、b5、b8。第一小区被调度的目标终端为b1、b2、b3、b5、b8中的任一个。
当第一小区内的目标终端为多个时,所述多个目标终端所在的组不同。
以表2为例,在小区a中,调度设备可以在第一组、第三组、第五组中分别选择出一个终端作为被调度的目标终端。例如,选择3个目标终端,分别为a1、a2和a4。再例如,选择3个目标终端,分别为a1、a6和a7。在小区b中,调度设备可以在第二组和第四组 中分别选择出一个终端作为被调度的目标终端。例如,选择b1和b3,或选择b1和b5,或选择b8和b2。
调度设备可以根据终端的调度优先级,在允许被调度的终端中确定目标终端。在一种示例中,一个组内,允许被调度的终端中调度优先级最高的终端为目标终端,或者调度优先级较高的几个终端为目标终端。在该示例中,一个组内只允许该第一小区的一个终端被调度,这样可以避免第一小区内,有较大干扰的终端同时调度,进而可以减少第一小区内的终端之间的相互干扰。
在图6的示例中,集中设备根据各个终端之间的干扰,对终端划分组。在大概率的情况下,一个组内的终端之间的干扰较大,不同组间的终端之间的干扰较小。一个组内只选择出一个小区的终端允许被调度,其余小区的终端不允许被调度。这样选择方式,可以避免小区间有较大干扰的终端同时调度,进而可以减少小区间的终端之间的相互干扰。并且,集中设备还可以将这种小区级别的粗粒度的调度选择结果告知调度设备,由调度设备来决定调度哪个终端,还可以提高调度灵活性。
另外,在图6和图3的示例的基础上,再提供了一种调度终端的方式。
在图6的示例中,集中设备在确定出允许调度的终端后,集中设备可以将允许被调度的终端下发给各个调度设备。由调度设备在允许被调度的终端选择出目标设备。
在该另一种调度终端的方式中,集中设备在确定出允许被调度的终端后,可以在允许被调度的终端中选择出目标终端。该过程与图6的示例中调度设备在允许被调度的终端选择出目标设备的过程相同,只是执行设备不同。进一步地,集中设备可以向目标终端的调度设备发送第二指示信息,所述第二指示信息用于指示:调度所述目标终端。相应的,调度设备接收第二指示信息,并调度所述目标终端。这与图3的示例中的步骤303相同,重复之处不再赘述。
本申请提供的多种调度终端的方法中,调度设备在第一时频资源上调度多个目标终端,多个目标终端之间也不会产生干扰或较大干扰,从而保证通信性能。另外,各个网络设备可以分别为其空间复用调度的多个目标终端计算下行传输预编码权值,以最小化空间复用终端之间的相互干扰,例如采用迫零传输、最大比例传输等预编码设计方法。网络设备可以使用计算得到的预编码权值向空间复用调度的多个目标终端发送数据。在下行数据传输阶段,由于各个小区各自选择空间复用的目标终端,并独立计算下行预编码权值,无需跨小区的预编码计算和终端待传数据的共享,所以实现复杂度低、开销小,并且没有频谱效率的损失。无需小区间进行实时的终端数据交互和复杂的联合信号处理(例如邻区干扰迫零、多小区联合数据传输),实现复杂度低。
前文介绍了本申请实施例的方法,下文中将介绍本申请实施例中的装置。方法、装置是基于同一技术构思的,由于方法、装置解决问题的原理相似,因此装置与方法的实施可以相互参见,重复之处不再赘述。
本申请实施例可以根据上述方法示例,对装置进行功能模块的划分,例如,可以对应各个功能划分为各个功能模块,也可以将两个或两个以上的功能集成在一个模块中。这些模块既可以采用硬件的形式实现,也可以采用软件功能模块的形式实现。需要说明的是,本申请实施例中对模块的划分是示意性的,仅仅为一种逻辑功能划分,具体实现时可以有另外的划分方式。
基于与上述方法的同一技术构思,参见图7,提供了一种调度终端的装置700(调度终 端的装置也可以看作通信装置)结构示意图,该装置700可以为集中设备,也可以为应用于集中设备中的芯片或功能单元。该装置700具有上述方法中集中设备的任意功能,例如,该装置700能够执行上述图3、图4和图6的方法中由集中设备执行的各个步骤。该装置700可以为调度设备,也可以为应用于调度设备中的芯片或功能单元。该装置700具有上述方法中调度设备的任意功能,例如,该装置700能够执行上述图3、图4和图6的方法中由调度设备执行的各个步骤。
该装置700可以包括:处理模块710,可选的,还包括接收模块720a、发送模块720b,存储模块730。处理模块710可以分别与存储模块730和接收模块720a和发送模块720b相连,所述存储模块730也可以与接收模块720a和发送模块720b相连。
所述接收模块720a,可以执行上述方法实施例中调度设备或集中设备执行的接收动作。
所述发送模块720b,可以执行上述方法实施例中调度设备或集中设备执行的发送动作。
所述处理模块710,可以执行上述方法实施例中调度设备或集中设备执行的动作中,除发送动作和接收动作外的其它动作。
在一种示例中,处理模块710,用于获取多个终端各自的第一信息;所述多个终端包括第一小区的至少一个终端和第二小区的至少一个终端;所述多个终端为在第一时频资源上等待被调度的终端;所述第一信息用于确定任意两个终端在第一时频资源上被调度时相互之间的干扰;根据第一小区的终端和第二小区的终端在第一时频资源上被调度时相互之间的干扰,确定是否允许在第一时频资源上调度所述第一小区的终端和所述第二小区的终端。
在一种示例中,所述处理模块710,在用于根据第一小区的终端和第二小区的终端在第一时频资源上被调度时相互之间的干扰,确定是否允许在第一时频资源上调度所述第一小区的终端和所述第二小区的终端时,具体用于:根据所述多个终端在第一时频资源上被调度时相互之间的干扰,对所述多个终端进行分组;其中,针对任一终端,所述终端与至少一个第一终端在第一时频资源上被调度时相互之间的干扰,大于所述终端与第二终端在第一时频资源上被调度时相互之间的干扰,所述终端与所述第一终端位于同一组,所述终端与所述第二终端位于不同组;针对每一组进行如下处理:如果该组只包括一个小区的终端,则允许在第一时频资源上调度该组中的所述一个小区的终端,所述一个小区为第一小区或第二小区;如果该组包括第一小区的第三终端和第二小区的第四终端,则允许在第一时频资源上调度该组中的第一小区的第三终端,不允许在第一时频资源上调度该组中的第二小区的第四终端;或者,不允许在第一时频资源上调度该组中的第一小区的第三终端,允许在第一时频资源上调度该组中的第二小区的第四终端。
在一种示例中,发送模块720b,用于向第一小区的调度设备发送第一指示信息,所述第一指示信息用于指示:所述第一小区中允许被调度的终端;和/或,向第二小区的调度设备发送第一指示信息,所述第一指示信息用于指示:所述第二小区中允许被调度的终端。
在一种示例中,所述处理模块710,还用于在每一组的允许被调度的终端中,选择出该组的至少一个目标终端;
在一种示例中,发送模块720b,用于向第一小区的调度设备发送第二指示信息,所述第二指示信息用于指示:调度所述第一小区中的目标终端;和/或,向第二小区的调度设备发送第二指示信息,所述第二指示信息用于指示:调度所述第二小区中的目标终端。
在一种示例中,所述处理模块710,在用于在每一组的允许被调度的终端中,选择出 该组的至少一个目标终端时,具体用于:在每一组的允许被调度的终端中,根据每个允许被调度的终端的调度优先级,选择出该组的至少一个目标终端。
在一种示例中,所述存储模块730,可以存储终端执行的方法的计算机执行指令,以使处理模块710和接收模块720a和发送模块720b执行上述示例中调度设备或集中设备执行的方法。
上述的接收模块720a和发送模块720b也可以集成在一起,定义为收发模块。
以上介绍了本申请实施例的应用于集中设备的装置和应用于调度设备的装置,以下介绍所述应用于集中设备的装置和所述应用于调度设备的装置可能的产品形态。应理解,但凡具备上述图7所述的应用于集中设备的装置或调度设备的装置的特征的任何形态的产品,都落入本申请的保护范围。还应理解,以下介绍仅为举例,不应限制本申请实施例的应用于集中设备的装置的产品形态,和应用于调度设备的装置的产品形态仅限于此。
作为一种可能的产品形态,装置可以由一般性的总线体系结构来实现。
如图8所示,提供了一种调度终端的装置800(调度终端的装置也可以看作通信装置)的示意性框图。该装置800可以为集中设备,也可以为应用于集中设备中的芯片。应理解,该装置具有上述方法中集中设备的任意功能,例如,所述装置800能够执行上述图3、图4和图6的方法中由集中设备执行的各个步骤。该装置800可以为调度设备,也可以为应用于调度设备中的芯片。应理解,该装置具有上述方法中调度设备的任意功能,例如,所述装置800能够执行上述图3、图4和图6的方法中由调度设备执行的各个步骤。
该装置800可以包括:处理器810,可选的,还包括收发器820、存储器830。该收发器820,可以用于接收程序指令并传输至所述处理器810,或者,该收发器820可以用于该装置800与其他通信设备进行通信交互,比如交互控制信令和/或业务数据等。该收发器820可以为代码和/或数据读写收发器,或者,该收发器820可以为处理器与收发机之间的信号传输收发器。所述处理器810和所述存储器830之间电耦合。
示例的,所述存储器830,用于存储计算机程序;所述处理器810,可以用于调用所述存储器830中存储的计算机程序或指令,执行上述示例中集中设备执行的方法,或者通过所述收发器820执行上述示例中集中设备执行的方法。
图7中的处理模块710可以通过所述处理器810来实现。
图7中的接收模块720a和发送模块720b可以通过所述收发器820来实现。或者,收发器820分为接收器和发送器,接收器执行接收模块的功能,发送器执行发送模块的功能。
图7中的存储模块730可以通过所述存储器830来实现。
作为一种可能的产品形态,装置可以由通用处理器(通用处理器也可以称为芯片或芯片系统)来实现。
一种可能的实现方式中,实现应用于集中设备或调度设备的装置的通用处理器包括:处理电路(处理电路也可以称为处理器);可选的,还包括:与所述处理电路内部连接通信的输入输出接口、存储介质(存储介质也可以称为存储器),所述存储介质用于存储处理电路执行的指令,以执行上述示例中集中设备或调度设备执行的方法。
图7中的处理模块710可以通过处理电路来实现。
图7中的接收模块720a和发送模块720b可以通过输入输出接口来实现。或者,输入输出接口分为输入接口和输出接口,输入接口执行接收模块的功能,输出接口执行发送模块的功能。
图7中的存储模块730可以通过存储介质来实现。
作为一种可能的产品形态,本申请实施例的装置,还可以使用下述来实现:一个或多个FPG集中设备(现场可编程门阵列就)、PLD(可编程逻辑器件就)、控制器、状态机、门逻辑、分立硬件部件、任何其它适合的电路、或者能够执行本申请通篇所描述的各种功能的电路的任意组合。
本申请实施例还提供了一种计算机可读存储介质,存储有计算机程序,该计算机程序被计算机执行时,可以使得所述计算机用于执行上述调度终端的方法。或者说:所述计算机程序包括用于实现上述调度终端的方法的指令。
本申请实施例还提供了一种计算机程序产品,包括:计算机程序代码,当所述计算机程序代码在计算机上运行时,使得计算机可以执行上述提供的调度终端的方法。
本申请实施例还提供了一种通信的系统,所述通信系统包括:执行上述调度终端的方法的集中设备和调度设备。
另外,本申请实施例中提及的处理器可以是中央处理器(central processing unit,CPU),基带处理器,基带处理器和CPU可以集成在一起,或者分开,还可以是网络处理器(network processor,NP)或者CPU和NP的组合。处理器还可以进一步包括硬件芯片或其他通用处理器。上述硬件芯片可以是专用集成电路(application-specific integrated circuit,ASIC),可编程逻辑器件(programmable logic device,PLD)或其组合。上述PLD可以是复杂可编程逻辑器件(complex programmable logic device,CPLD),现场可编程逻辑门阵列(field-programmable gate array,FPGA),通用阵列逻辑(generic array logic,GAL)及其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等或其任意组合。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。
本申请实施例中提及的存储器可以是易失性存储器或非易失性存储器,或可包括易失性和非易失性存储器两者。其中,非易失性存储器可以是只读存储器(Read-Only Memory,ROM)、可编程只读存储器(Programmable ROM,PROM)、可擦除可编程只读存储器(Erasable PROM,EPROM)、电可擦除可编程只读存储器(Electrically EPROM,EEPROM)或闪存。易失性存储器可以是随机存取存储器(Random Access Memory,RAM),其用作外部高速缓存。通过示例性但不是限制性说明,许多形式的RAM可用,例如静态随机存取存储器(Static RAM,SRAM)、动态随机存取存储器(Dynamic RAM,DRAM)、同步动态随机存取存储器(Synchronous DRAM,SDRAM)、双倍数据速率同步动态随机存取存储器(Double Data Rate SDRAM,DDR SDRAM)、增强型同步动态随机存取存储器(Enhanced SDRAM,ESDRAM)、同步连接动态随机存取存储器(Synchlink DRAM,SLDRAM)和直接内存总线随机存取存储器(Direct Rambus RAM,DR RAM)。应注意,本申请描述的存储器旨在包括但不限于这些和任意其它适合类型的存储器。
本申请实施例中提及的收发器中可以包括单独的发送器,和/或,单独的接收器,也可以是发送器和接收器集成一体。收发器可以在相应的处理器的指示下工作。可选的,发送器可以对应物理设备中发射机,接收器可以对应物理设备中的接收机。
本领域普通技术人员可以意识到,结合本文中所公开的实施例中描述的各方法步骤和单元,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实施例的步骤及组成。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。本领域 普通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申请的范围。
所属领域的技术人员可以清楚地了解到,为了描述的方便和简洁,上述描述的系统、装置和单元的具体工作过程,可以参见前述方法实施例中的对应过程,在此不再赘述。
在本申请所提供的几个实施例中,应该理解到,所揭露的系统、装置和方法,可以通过其它的方式实现。例如,以上所描述的装置实施例仅仅是示意性的,例如,所述单元的划分,仅仅为一种逻辑功能划分,实际实现时可以有另外的划分方式,例如多个单元或组件可以结合或者可以集成到另一个系统,或一些特征可以忽略,或不执行。另外,所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口、装置或单元的间接耦合或通信连接,也可以是电的,机械的或其它的形式连接。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的,作为单元显示的部件可以是或者也可以不是物理单元,即可以位于一个地方,或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本申请实施例方案的目的。
另外,在本申请各个实施例中的各功能单元可以集成在一个处理单元中,也可以是各个单元单独物理存在,也可以是两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现,也可以采用软件功能单元的形式实现。
所述集成的单元如果以软件功能单元的形式实现并作为独立的产品销售或使用时,可以存储在一个计算机可读取存储介质中。基于这样的理解,本申请的技术方案本质上或者说对现有技术做出贡献的部分,或者该技术方案的全部或部分可以以软件产品的形式体现出来,该计算机软件产品存储在一个存储介质中,包括若干指令用以使得一台计算机设备(可以是个人计算机,服务器,或者网络设备等)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括:U盘、移动硬盘、只读存储器(read-only memory,ROM)、随机存取存储器(random access memory,RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
本领域内的技术人员应明白,本申请的实施例可提供为方法、系统、或计算机程序产品。因此,本申请可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且,本申请可采用在一个或多个其中包括有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器、CD-ROM、光学存储器等)上实施的计算机程序产品的形式。
本申请中的“和/或”,描述关联对象的关联关系,表示可以存在三种关系,例如,A和/或B,可以表示:单独存在A,同时存在A和B,单独存在B这三种情况。字符“/”一般表示前后关联对象是一种“或”的关系。本申请中所涉及的多个,是指两个或两个以上。另外,需要理解的是,在本申请的描述中,“第一”、“第二”等词汇,仅用于区分描述的目的,而不能理解为指示或暗示相对重要性,也不能理解为指示或暗示顺序。
本申请是参照根据本申请实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器,使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用 于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中,使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品,该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上,使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理,从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
尽管已描述了本申请的优选实施例,但本领域内的技术人员一旦得知了基本创造性概念,则可对这些实施例作出另外的变更和修改。所以,所附权利要求意欲解释为包括优选实施例以及落入本申请范围的所有变更和修改。
显然,本领域的技术人员可以对本申请实施例进行各种改动和变型而不脱离本申请实施例的精神和范围。这样,倘若本申请实施例的这些修改和变型属于本申请权利要求及其等同技术的范围之内,则本申请也意图包括这些改动和变型在内。

Claims (23)

  1. 一种调度终端的方法,其特征在于,所述方法包括:
    集中设备获取多个终端各自的第一信息;所述多个终端包括第一小区的至少一个终端和第二小区的至少一个终端;所述多个终端为在第一时频资源上等待被调度的终端;所述第一信息用于确定任意两个终端在第一时频资源上被调度时相互之间的干扰;
    集中设备根据第一小区的终端和第二小区的终端在第一时频资源上被调度时相互之间的干扰,确定是否允许在第一时频资源上调度所述第一小区的终端和所述第二小区的终端。
  2. 如权利要求1所述的方法,其特征在于,集中设备根据第一小区的终端和第二小区的终端在第一时频资源上被调度时相互之间的干扰,确定是否允许在第一时频资源上调度所述第一小区的终端和所述第二小区的终端,包括:
    集中设备根据所述多个终端在第一时频资源上被调度时相互之间的干扰,对所述多个终端进行分组;其中,针对任一终端,所述终端与至少一个第一终端在第一时频资源上被调度时相互之间的干扰,大于所述终端与第二终端在第一时频资源上被调度时相互之间的干扰,所述终端与所述第一终端位于同一组,所述终端与所述第二终端位于不同组;
    集中设备针对每一组进行如下处理:
    如果该组只包括一个小区的终端,则允许在第一时频资源上调度该组中的所述一个小区的终端,所述一个小区为第一小区或第二小区;
    如果该组包括第一小区的第三终端和第二小区的第四终端,则允许在第一时频资源上调度该组中的第一小区的第三终端,不允许在第一时频资源上调度该组中的第二小区的第四终端;或者,不允许在第一时频资源上调度该组中的第一小区的第三终端,允许在第一时频资源上调度该组中的第二小区的第四终端。
  3. 如权利要求1或2所述的方法,其特征在于,还包括:
    所述集中设备向第一小区的调度设备发送第一指示信息,所述第一指示信息用于指示:所述第一小区中允许被调度的终端;和/或,所述集中设备向第二小区的调度设备发送第一指示信息,所述第一指示信息用于指示:所述第二小区中允许被调度的终端。
  4. 如权利要求3所述的方法,其特征在于,所述第一指示信息还用于指示:允许被调度的终端所在的组。
  5. 如权利要求2所述的方法,其特征在于,还包括:
    所述集中设备在每一组的允许被调度的终端中,选择出该组的至少一个目标终端;
    所述集中设备向第一小区的调度设备发送第二指示信息,所述第二指示信息用于指示:调度所述第一小区中的目标终端;和/或,所述集中设备向第二小区的调度设备发送第二指示信息,所述第二指示信息用于指示:调度所述第二小区中的目标终端。
  6. 如权利要求5所述的方法,其特征在于,所述集中设备在每一组的允许被调度的终端中,选择出该组的至少一个目标终端,包括:
    所述集中设备在每一组的允许被调度的终端中,根据每个允许被调度的终端的调度优先级,选择出该组的至少一个目标终端。
  7. 如权利要求5或6所述的方法,其特征在于,所述第二指示信息还用于指示:每个目标终端对应的第二时频资源;所述第二时频资源为所述第一时频资源的部分或全部,一 个组中的多个目标终端各自对应的第二时频资源不同。
  8. 如权利要求1-7任一项所述的方法,其特征在于,所述第一信息包括以下的一项或多项:
    信道状态、波束信号强度、接收信号强度指示、参考信号接收功率、参考信号接收质量、信号强度大于或等于设定阈值的波束的标识、信号强度小于或等于设定阈值的波束的标识。
  9. 如权利要求1-8任一项所述的方法,其特征在于,所述第一信息还包括:调度优先级。
  10. 一种调度终端的装置,其特征在于,所述装置包括:
    处理模块,用于获取多个终端各自的第一信息;所述多个终端包括第一小区的至少一个终端和第二小区的至少一个终端;所述多个终端为在第一时频资源上等待被调度的终端;所述第一信息用于确定任意两个终端在第一时频资源上被调度时相互之间的干扰;根据第一小区的终端和第二小区的终端在第一时频资源上被调度时相互之间的干扰,确定是否允许在第一时频资源上调度所述第一小区的终端和所述第二小区的终端。
  11. 如权利要求10所述的装置,其特征在于,所述处理模块,在用于根据第一小区的终端和第二小区的终端在第一时频资源上被调度时相互之间的干扰,确定是否允许在第一时频资源上调度所述第一小区的终端和所述第二小区的终端时,具体用于:
    根据所述多个终端在第一时频资源上被调度时相互之间的干扰,对所述多个终端进行分组;其中,针对任一终端,所述终端与至少一个第一终端在第一时频资源上被调度时相互之间的干扰,大于所述终端与第二终端在第一时频资源上被调度时相互之间的干扰,所述终端与所述第一终端位于同一组,所述终端与所述第二终端位于不同组;
    针对每一组进行如下处理:
    如果该组只包括一个小区的终端,则允许在第一时频资源上调度该组中的所述一个小区的终端,所述一个小区为第一小区或第二小区;
    如果该组包括第一小区的第三终端和第二小区的第四终端,则允许在第一时频资源上调度该组中的第一小区的第三终端,不允许在第一时频资源上调度该组中的第二小区的第四终端;或者,不允许在第一时频资源上调度该组中的第一小区的第三终端,允许在第一时频资源上调度该组中的第二小区的第四终端。
  12. 如权利要求10或11所述的装置,其特征在于,还包括:
    发送模块,用于向第一小区的调度设备发送第一指示信息,所述第一指示信息用于指示:所述第一小区中允许被调度的终端;和/或,向第二小区的调度设备发送第一指示信息,所述第一指示信息用于指示:所述第二小区中允许被调度的终端。
  13. 如权利要求12所述的装置,其特征在于,所述第一指示信息还用于指示:允许被调度的终端所在的组。
  14. 如权利要求11所述的装置,其特征在于,所述处理模块,还用于在每一组的允许被调度的终端中,选择出该组的至少一个目标终端;
    装置还包括:
    发送模块,用于向第一小区的调度设备发送第二指示信息,所述第二指示信息用于指示:调度所述第一小区中的目标终端;和/或,向第二小区的调度设备发送第二指示信息,所述第二指示信息用于指示:调度所述第二小区中的目标终端。
  15. 如权利要求14所述的装置,其特征在于,所述处理模块,在用于在每一组的允许被调度的终端中,选择出该组的至少一个目标终端时,具体用于:
    在每一组的允许被调度的终端中,根据每个允许被调度的终端的调度优先级,选择出该组的至少一个目标终端。
  16. 如权利要求14或15所述的装置,其特征在于,所述第二指示信息还用于指示:每个目标终端对应的第二时频资源;所述第二时频资源为所述第一时频资源的部分或全部,一个组中的多个目标终端各自对应的第二时频资源不同。
  17. 如权利要求10-16任一项所述的装置,其特征在于,所述第一信息包括以下的一项或多项:
    信道状态、波束信号强度、接收信号强度指示、参考信号接收功率、参考信号接收质量、信号强度大于或等于设定阈值的波束的标识、信号强度小于或等于设定阈值的波束的标识。
  18. 如权利要求10-17任一项所述的装置,其特征在于,所述第一信息还包括:调度优先级。
  19. 一种通信装置,其特征在于,包括处理器和存储器;
    所述存储器,用于存储计算机程序指令;
    所述处理器,用于执行所述存储器中的部分或者全部计算机程序指令,当所述部分或者全部计算机程序指令被执行时,用于实现如权利要求1-9任一项所述的方法。
  20. 一种通信装置,其特征在于,包括处理器;
    所述处理器,用于执行存储器中的部分或者全部计算机程序指令,当所述部分或者全部计算机程序指令被执行时,用于实现如权利要求1-9任一项所述的方法。
  21. 一种芯片系统,其特征在于,所述芯片系统包括:处理电路;所述处理电路与存储介质耦合;
    所述处理电路,用于执行所述存储介质中的部分或者全部计算机程序指令,当所述部分或者全部计算机程序指令被执行时,用于实现如权利要求1-9任一项所述的方法。
  22. 一种计算机可读存储介质,其特征在于,用于存储计算机程序,所述计算机程序包括用于实现权利要求1-9任一项所述的方法的指令。
  23. 一种计算机程序产品,其特征在于,所述计算机程序产品包括:计算机程序代码,当所述计算机程序代码在计算机上运行时,使得计算机执行如权利要求1-9任一项所述的方法。
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