WO2016070701A1 - Procédé d'attribution de ressources radio, nœud de communication, et support de stockage - Google Patents

Procédé d'attribution de ressources radio, nœud de communication, et support de stockage Download PDF

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Publication number
WO2016070701A1
WO2016070701A1 PCT/CN2015/091945 CN2015091945W WO2016070701A1 WO 2016070701 A1 WO2016070701 A1 WO 2016070701A1 CN 2015091945 W CN2015091945 W CN 2015091945W WO 2016070701 A1 WO2016070701 A1 WO 2016070701A1
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WO
WIPO (PCT)
Prior art keywords
base station
target cell
mobile user
radio resource
group
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PCT/CN2015/091945
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English (en)
Chinese (zh)
Inventor
苗婷
李岩
刘星
李瑞梅
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中兴通讯股份有限公司
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Publication of WO2016070701A1 publication Critical patent/WO2016070701A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/32—Reselection being triggered by specific parameters by location or mobility data, e.g. speed data
    • H04W36/324—Reselection being triggered by specific parameters by location or mobility data, e.g. speed data by mobility data, e.g. speed data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/52—Allocation or scheduling criteria for wireless resources based on load
    • H04W4/04—

Definitions

  • the present invention relates to the field of wireless communications, and in particular, to a radio resource allocation method, a communication node, and a storage medium.
  • a communication system includes base stations BS1, BS2 and a terminal UE; base stations BS1 and BS2 form a communication cell covered by transmitting a wireless signal, which is represented by an ellipse in FIG. 1A.
  • the dotted rectangular frame in FIG. 1A indicates that a plurality of terminal UEs that are framed are users for group movement, and those users performing group migration are migrated from the cell formed by the coverage of the base station BS1 to the base station BS2 to cover the cell migration; Users who move groups can be called group mobile users;
  • the above-mentioned user group moving scenes can be commonly found in the public transportation field, such as the transit of a vehicle carrying a plurality of mobile users, such as a bus, a train, etc., which will bring a large number of user group movements, and accompanying groups.
  • Group mobility forms a migration of a large number of data services.
  • These in-vehicle group mobile users are all independently connected to the base station or relay node.
  • When these group mobile users move within the mobile network area they will dynamically and potentially cause high business demands.
  • the data service needs of group mobile users will continue to increase in future mobile communications, and will pose challenges for both business and mobile management.
  • Group mobile users will suddenly have a 'hot spot' in the cell, which will cause congestion problems in the network.
  • there is a high rate of achievement for the target cell a low leaving rate, and thus a serious impact on the load of the target cell.
  • the cell load change brought by the group mobile users the cell load will be degenerated, causing load overload in some cells in the network, affecting network stability and user access, reducing resource utilization and affecting user experience. . Therefore, the load change brought by group mobile users is The problem that the network needs to solve.
  • the embodiments of the present invention are expected to provide a radio resource allocation method, a communication node, and a storage medium to at least partially prevent the user from performing group migration and causing the target cell to be overloaded.
  • a first aspect of the embodiments of the present invention provides a radio resource allocation method, where the method includes:
  • the second base station receives user attribute information of the group mobile user before the group mobile user enters the target cell;
  • the second base station performs radio resource allocation according to the user attribute information, so that when the group mobile user accesses the target cell, the load control of the target cell is within a load limit range;
  • the target cell is a cell formed by the second base station.
  • the second base station is configured with a first radio resource
  • the second base station performs radio resource allocation according to the user attribute information, including:
  • the second base station performs resource allocation pre-processing to form a pre-processing result; wherein the resource allocation pre-processing includes load balancing and/or applying for a second radio resource;
  • the second base station performs resource allocation pre-processing, and the pre-processing result includes:
  • the second base station performs load balancing on the third base station, and reserves radio resources to the group mobile user.
  • the third base station is a neighboring base station of the second base station.
  • the second base station performs resource allocation pre-processing, and the pre-processing result includes:
  • the second base station borrows the second radio resource from the third base station
  • the second base station borrows the second radio resource from the third base station, allocate the first radio resource and the second radio resource, and reserve radio resources for the group mobile user;
  • the third base station is a neighboring base station of the second base station.
  • the second base station performs resource allocation preprocessing to form a preprocessing result, including:
  • the second base station applies to the resource management node for the second radio resource
  • the second base station performs radio resource allocation according to the user attribute information, and further includes:
  • the access parameter includes at least one of: a time when the group mobile user accesses the target cell, and a group mobile user a dwell time of the target cell;
  • the resource association parameter includes at least one of the following: a quantity of the radio resource, a radio resource quality, and a resource type;
  • the radio resource allocation is performed according to the access parameter and the resource association parameter.
  • the user attribute information includes a first type of parameter for determining the access parameter and a second type of parameter for determining a resource associated parameter;
  • the first type of parameters includes at least one of: a moving speed, a moving direction, a moving track, a group position, a time corresponding to the group position, and a group moving route identifier; the group moving route Identifying index information for querying the moving speed, moving direction, and/or moving track;
  • the second type of parameters includes at least one of the following: a number of group users, a number of connected users, a service type, a traffic volume, a spectrum resource quality requirement, and a supported frequency band range.
  • the user attribute information includes an access parameter and a resource association parameter
  • the access parameter includes a time when the group mobile user accesses the target cell, or the access parameter includes a time when the group mobile user accesses the target cell and a group mobile user is in the target cell. Leave time
  • the resource association parameter includes at least one of the following: a quantity of a radio resource, a quality of a radio resource, and a type of a resource.
  • the second base station receives the user attribute information from the first base station and/or the network management network element and/or the core network element.
  • a second aspect of the embodiments of the present invention provides a radio resource allocation method, where the method includes:
  • the first base station acquires user attribute information of at least a part of the group mobile users
  • the at least one of the cells formed by the second base station is a target cell that the group mobile user pre-accesses
  • the user attribute information is used to perform radio resource allocation for the second base station, so that when the group mobile user accesses the target cell, the load control of the target cell provides a basis within a load limit range.
  • the acquiring user attribute information of the group mobile user is at least one of the following:
  • a third aspect of the embodiments of the present invention provides a communication node, where the communication node is a second base station forming a target cell;
  • the second base station includes:
  • a receiving unit configured to receive user attribute information of the group mobile user before the group mobile user enters the target cell
  • the allocating unit is configured to perform radio resource allocation according to the user attribute information, so that when the group mobile user accesses the target cell, the load control of the target cell is within a load limit range;
  • the target cell is a cell formed by the coverage of the second base station.
  • the second base station is configured with a first radio resource
  • the distribution unit includes:
  • the determining module is configured to determine, according to the user attribute information, whether the load of the target cell after the group mobile user access exceeds the load limit range;
  • Pre-processing includes load balancing and/or applying for a second wireless resource
  • the allocation module is configured to perform radio resource allocation according to the pre-processing result, so that when the group mobile user accesses the target cell, the load control of the target cell is within a load limit range.
  • the pre-processing module is configured to perform load balancing on the third base station, and reserve radio resources to the group mobile user.
  • the third base station is a neighboring base station of the second base station.
  • the pre-processing module is configured to borrow the second radio resource from the third base station; and when the second base station borrows the second radio resource from the third base station, allocate the first radio resource and the Determining, by the second wireless resource, a radio resource for the group mobile user;
  • the third base station is a neighboring base station of the second base station.
  • the pre-processing module is configured to apply to the resource management node for the second radio resource; and when the second base station applies to the second radio resource, allocate the first radio resource and the second radio A resource that reserves radio resources for the group of mobile users.
  • the distribution unit further includes:
  • a determining module configured to determine an access parameter and a resource association parameter according to the user attribute information, where the access parameter includes at least one of: a time when the group mobile user accesses the target cell, a group The dwell time of the mobile subscriber in the target cell;
  • the resource association parameter includes at least one of the following: a quantity of a radio resource, a quality of a radio resource, and a type of a resource;
  • the allocating module is configured to perform radio resource allocation according to the access parameter and the resource association parameter.
  • the user attribute information includes a first type of parameter for determining the access parameter and a second type of parameter for determining a resource associated parameter;
  • the first type of parameters includes at least one of: a moving speed, a moving direction, a moving track, a group position, a time corresponding to the group position, and a group moving route identifier; the group moving route Identifying index information for querying the moving speed, moving direction, and/or moving track;
  • the second type of parameters includes at least one of the following: a number of group users, a number of connected users, a service type, a traffic volume, a spectrum resource quality requirement, and a supported frequency band range.
  • the user attribute information includes an access parameter and a resource association parameter
  • the access parameter includes a time when the group mobile user accesses the target cell, or the access parameter includes a time when the group mobile user accesses the target cell and a group mobile user is in the target cell. Retaining time; the access parameter includes at least one of: a time when the group mobile user accesses the target cell, and a dwell time of the group mobile user at the target cell;
  • the resource association parameter includes at least one of the following: a quantity of a radio resource, a quality of a radio resource, and a type of a resource.
  • the receiving unit is configured to receive the user attribute information from a first base station, a network management network element, or a core network element.
  • a fourth aspect of the embodiments of the present invention provides a communication node, where the communication node is a first base station;
  • the first base station includes:
  • the obtaining unit is configured to obtain user attribute information of the group mobile user
  • a sending unit configured to send the user attribute information to a second base station, a network management network element, or a core network element;
  • the at least one of the cells formed by the second base station is a target cell that the group mobile user pre-accesses
  • the user attribute information is used to perform radio resource allocation for the second base station, so that when the group mobile user accesses the target cell, the load control of the target cell provides a basis within a load limit range.
  • the obtaining unit is configured to receive at least a relay node that manages the group mobile user And the user attribute information and/or receiving at least part of the user attribute information from the group mobile user and/or acquiring at least part of the user attribute information according to a connection state of the first base station and the group mobile user .
  • a fifth aspect of the embodiments of the present invention further provides a computer storage medium, wherein the computer storage medium stores computer executable instructions, and the computer executable instructions are used in at least one of the foregoing methods.
  • the forming base station of the target cell before the group mobile user does not access the target cell, the forming base station of the target cell first acquires the user attribute information of the group mobile user, according to the user.
  • the attribute information is used for resource allocation, which can avoid the problem that the target cell is overloaded.
  • FIG. 1A is a schematic diagram of a group mobile user movement
  • 1B is a schematic flowchart of a radio resource allocation according to an embodiment of the present invention.
  • FIG. 2 is a schematic flowchart of a first method for performing radio resource allocation according to an embodiment of the present invention
  • FIG. 3 is a schematic flowchart of a second method for performing radio resource allocation according to an embodiment of the present invention.
  • FIG. 4 is a second schematic flowchart of a radio resource allocation according to an embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of a second base station according to an embodiment of the present disclosure.
  • FIG. 6 is a schematic structural diagram of a distribution unit according to an embodiment of the present invention.
  • FIG. 7 is a schematic structural diagram of a first base station according to an embodiment of the present invention.
  • FIG. 8 is a schematic flowchart of a first type of radio resource allocation according to an example of the present invention.
  • FIG. 9 is a schematic flowchart of a second type of radio resource allocation according to an example of the present invention.
  • FIG. 10 is a schematic flowchart of a third radio resource allocation according to an example of the present invention.
  • a plurality of mobile users will form a mobile group, and a mobile user within the mobile group is a group mobile user.
  • a mobile group includes multiple group mobile users. Multiple group mobile users move together and leave a source cell to enter the target cell together. Due to the large number of users, the target cell may receive too many users to overload at one time, and the user who originally camped on the target cell will be the target cell. The overload cannot communicate. Therefore, in the embodiment, in order to reduce the occurrence of the foregoing phenomenon, the radio resource allocation method in this embodiment receives group attribute information in advance, performs radio resource allocation according to the attribute information, and controls load control of the target cell in a limit range. In the meantime, the communication failure caused by the overload of the target cell due to the entry of the group mobile user or the phenomenon that the communication quality is rapidly degraded is reduced. Further explanation is provided below in conjunction with the drawings and specific embodiments.
  • the embodiment provides a radio resource allocation method, where the method includes:
  • Step S110 The second base station receives user attribute information of the group mobile user before the group mobile user enters the target cell.
  • Step S120 The second base station performs radio resource allocation according to the user attribute information, so that when the group mobile user accesses the target cell, the load control of the target cell is within a load limit range;
  • the target cell is a cell formed by the second base station.
  • the second base station that forms the target cell of the group mobile user handover receives the user attribute information of the group mobile user before the group mobile user enters the target cell, and can perform resource allocation according to the user attribute information. Pre-processing and other resource allocation processing, the second base station knows the user attribute information to predict the load of the cell when the group mobile user accesses, and can determine whether an overload phenomenon will occur, and may be required if an overload phenomenon may occur. Apply more The radio resource or the number of users residing in the target cell, so as to control the target cell to control the load of the target cell within the load limit range after the group mobile user enters the target cell.
  • the target cell After the group mobile user enters the target cell, the target cell does not overload, and some users cannot connect to the second base station or the communication connection is poor due to poor connection status and the communication quality is poor. Moreover, the overload phenomenon of the target cell is avoided, and the problem that the user accessing the network communication is not interrupted or cannot be accessed can be ensured, thereby improving the stability of the network.
  • the load of the target cell refers to the spectrum efficiency or resource utilization of the target cell.
  • the second base station is configured with a first radio resource
  • the second base station performs radio resource allocation according to the user attribute information, including:
  • Step S121 determining, according to the user attribute information, whether the load of the target cell after the group mobile user access exceeds the load limit range; if yes, proceeding to step S122;
  • Step S122 The second base station performs resource allocation pre-processing to form a pre-processing result, where the resource allocation pre-processing includes load balancing and/or applying for a second radio resource;
  • Step S123 Perform radio resource allocation according to the pre-processing result, so that when the group mobile user accesses the target cell, the load control of the target cell is within a load limit range.
  • the second base station can perform resource allocation according to the existing conventional method.
  • the target cell may be overloaded, and the second base station needs to perform load balancing and/or apply for more radio resources, such as applying for the second radio resource. For example, apply for more band resources).
  • the second radio resource is usually an idle resource, and the unused resource is used for the use of the user in the target cell, thereby improving the advantage of the resource utilization of the cell.
  • the user currently camped on the target cell can be switched to the third base station to form In the cell, the number of users in the target cell is reduced, and more resources are reserved for the group mobile users to use.
  • load balancing may be directly performed on the third base station, and radio resources are reserved for the group mobile user; wherein the third base station is a neighboring base station of the second base station.
  • the pre-processing result includes load balancing the user cut out from the target cell, the number of vacated radio resources, and the type of resources.
  • the step S122 includes:
  • the second base station borrows the second radio resource from the third base station
  • the second base station borrows the second radio resource from the third base station, allocate the first radio resource and the second radio resource, and reserve radio resources for the group mobile user;
  • the third base station is a neighboring base station of the second base station.
  • the borrowing the second radio resource includes:
  • the second base station sends an idle resource negotiation request to the third base station;
  • the idle resource negotiation request includes at least one of the following: a spectrum resource quantity (eg, 5 MHz) for negotiating an application, and a resource requirement time.
  • the resource requirement time refers to a resource occupation time after the group mobile user accesses the second base station.
  • the third base station After receiving the idle resource negotiation request of the second base station, if the third base station has a low traffic load and has idle spectrum resources, the third base station sends an idle resource negotiation response to the second base station, where the idle resource negotiation response includes
  • the frequency band range utilized may also include the usable time.
  • the radio resource carried in the idle resource negotiation response is one of the second radio resources.
  • the step S122 includes:
  • the second base station applies to the resource management node for the second radio resource
  • the radio resource management node may be a spectrum controller (SC), a central control node (CCP, Central Control Point), a reconfiguration management module, and a reconfiguration function module (Reconfiguration) in the wireless communication system.
  • Resource Management Nodes such as Function Module), Reconfiguration Entity, Advanced Geo-location Engine, Advanced Geo-Location Function, or Coexistence Function.
  • how to apply for the second radio resource to the resource management node may specifically include:
  • the application response may carry the available radio resource, where The radio resource is one of the second radio resources.
  • the application response may specifically carry a range of available frequency bands, and may also include information such as the available time of the available frequency band ranges, the maximum transmit power of the corresponding available frequency bands, and the like.
  • the process of performing radio resource allocation specifically includes:
  • Step S1231 Determine an access parameter and a resource association parameter according to the user attribute information.
  • Step S1232 Perform radio resource allocation according to the access parameter and the resource association parameter.
  • the access parameter includes at least one of a time when the group mobile user accesses the target cell and a dwell time of the group mobile user at the target cell; in a specific implementation, the access parameter includes at least one of The time when the group mobile user accesses the target cell.
  • the resource association parameter includes At least one of them: the number of wireless resources, the quality of wireless resources, and the type of resources.
  • the resource type includes a frequency band range, and the number of the wireless resources includes information such as a bandwidth value.
  • the information may be directly received by the second base station in the user attribute information, or may be received by the second base station to determine parameters of the access parameter or the resource association parameter, and the performance of the second base station is combined according to the parameters.
  • the parameters are determined by themselves; the following is a further detailed description of the user attribute information received by the second base station to determine the above parameters.
  • the user attribute information includes a first type of parameter for determining the access parameter and a second type of parameter for determining a resource associated parameter;
  • the first parameter includes at least one of a moving speed, a moving direction, a moving track, a group position, a time corresponding to the group position, and a group moving route identifier;
  • the group moving route identifier is Querying index information of the moving speed, moving direction, and/or moving track;
  • the second type of parameters includes at least one of a group user number, a connected state user number, a service type, a traffic volume, a spectrum resource quality requirement, and a supported frequency band range.
  • the moving speed refers to the moving speed of the entire group mobile user.
  • the number of group users may be the number of mobile users carried on the vehicle. For a vehicle with a change in the number of mobile users, it can be expressed by the maximum number of users on the vehicle or the average number of users in a period of time.
  • the number of connected users may be the number of mobile users in the group mobile user that establish a connection with the base station in the connected state.
  • the traffic volume refers to the total data service throughput applied by the user to the network side of the first base station or the service throughput applied by different service types.
  • the quality requirement of the spectrum resource may refer to the quality requirement of the group mobile user for the spectrum resource.
  • a spectrum of interference power requirements, or interference level requirements, or average signal to interference noise ratio requirements may refer to the quality requirement of the group mobile user for the spectrum resource.
  • the supported frequency band range refers to a frequency band range supported by the group mobile user equipment or a frequency band range supported by the vehicle equipment.
  • the moving route identifier may be a route identifier of a public transportation vehicle, such as a bus, a train, a bus, a magnetic levitation, a route identification of a ship; and specifically, a train number of the train, and the movement trajectory of the train may be queried according to the train number and / or move speed.
  • a public transportation vehicle such as a bus, a train, a bus, a magnetic levitation, a route identification of a ship
  • a train number of the train and the movement trajectory of the train may be queried according to the train number and / or move speed.
  • the current location refers to the onboard location where the current group mobile subscriber is located. It can be expressed in latitude and longitude.
  • the time corresponding to the group location refers to a specific time corresponding to the location of the group, such as the network time on the terminal side, which can be accurate to milliseconds.
  • the second base station receives the user attribute information from the first base station and/or the network management network element and/or the core network element.
  • the network management network element may be a network element located in an Operation Management Maintenance (OAM) or an Equipment Management System (EMS) or a Network Management System (NMS).
  • the core network element may be, for example, a Mobility Management Entity (MME) or a Serving Gateway (S-GW).
  • MME Mobility Management Entity
  • S-GW Serving Gateway
  • the foregoing embodiment provides a resource allocation method for a second mobile station when a group mobile user accesses, and pre-acquisitions user attribute information and resource allocation according to user attribute information before the group mobile user accesses, which can be as early as possible. It is found that the group mobile user will cause the target cell to be overloaded after being accessed, so as to timely re-apply and balance the radio resources to avoid the overload phenomenon of the group mobile users after access, and improve the group mobile users. Communication quality and user satisfaction of each user in the target cell after handover.
  • this embodiment provides a radio resource allocation method, where the method includes:
  • Step S210 The first base station acquires user attribute information of the group mobile user.
  • Step S220 Send the user attribute information to the second base station, the network management network element, or the core network element.
  • the at least one of the cells formed by the second base station is a target cell that the group mobile user pre-accesses
  • the user attribute information is used to perform radio resource allocation for the second base station, so that when the group mobile user accesses the target cell, the load control of the target cell provides a basis within a load limit range.
  • the first base station is a base station to which the group mobile subscriber is currently camped, and the first base station may determine a target cell and/or according to the group mobile user moving direction.
  • the second base station is a base station to which the group mobile subscriber is currently camped, and the first base station may determine a target cell and/or according to the group mobile user moving direction.
  • the obtained user attribute information is directly sent to the second base station through the X2 interface or the S1 interface, or is reported to the core network element or
  • the network element network element may be a mobility management entity MME or a serving gateway S-GW.
  • the network management network element may be a network element in the operation and maintenance system OAM or a device management system EMS or a network management system NMS.
  • the first type when the group user is directly connected to the first base station, the first base station directly acquires at least part of the user attribute information from the group mobile user, where the first base station may be according to the group a connection of the mobile user to the first base station to determine at least part of the user attribute information; when the group mobile user is camped in a cell formed by the first base station by one or more relay nodes, The first base station may directly acquire at least part of the user attribute information from the relay node.
  • a plurality of micro base stations are disposed on a train; the mobile user accesses the first base station by using the micro base station, and the micro base station is the relay node, and the first base station may be from the
  • the user attribute information is obtained in the micro base station.
  • Some of the user attribute information is stored Stored in the database of the first base station, the first base station does not need to be acquired from the relay node or the terminal through an external communication interface, so the first base station acquires user attributes from the relay node or the terminal.
  • the information is received, it is only necessary to obtain part of the information; if the first base station does not store any of the user attribute information, it is necessary to obtain all user attribute information from the relay node or the terminal, and relay from the relay.
  • the information obtained by the node or terminal may be partially from the relay node or partially from the terminal.
  • the method in this embodiment is corresponding to the method described in Embodiment 1 of the method, where the first base station and the second base station are classified from coverage, and may be a macro base station forming a cell, and the supported mobile station
  • the first base station and the second base station may be an evolved base station eNB.
  • the first base station further includes determining the access time, the number of radio resources, and the resource type before performing step S220.
  • the access time, the number of radio resources, and the resource type may also be determined by the network management network element or the core network element.
  • the method in this embodiment can assist the second base station in overloading caused by the access of the group mobile user when performing resource allocation.
  • this embodiment provides a communication node, where the communication node is a second base station forming a target cell;
  • the second base station includes:
  • the receiving unit 110 is configured to receive user attribute information of the group mobile user.
  • the allocating unit 120 is configured to perform radio resource allocation by using the user attribute information, so that when the group mobile user accesses the target cell, the load control of the target cell is in a load limit range.
  • the target cell is a cell formed by the coverage of the second base station.
  • the receiving unit 110 includes various types of communication interfaces, such as a wired communication interface and a wireless communication interface; the wireless communication interface may include an X2 interface and an S1 interface.
  • the allocating unit 120 may include a processor and a storage medium; the storage medium stores executable instructions; the processor and the storage medium are connected by a bus, and the processor runs the executable instruction Performing radio resource allocation according to the user attribute information may be performed.
  • the processor may be an electronic component having a processing function, such as an application processor AP, a central processing unit CPU, a microprocessor MCU, a digital signal processor DSP, or a programmable logic circuit PLC.
  • a processing function such as an application processor AP, a central processing unit CPU, a microprocessor MCU, a digital signal processor DSP, or a programmable logic circuit PLC.
  • the second base station is configured with a first radio resource; the first radio resource is a first radio resource that is currently configured by the second base station.
  • the allocating unit 120 includes:
  • the determining module 121 is configured to determine, according to the user attribute information, whether the load of the target cell after the group mobile user access exceeds the load limit range;
  • the pre-processing module 122 is configured to perform resource allocation pre-processing to form a pre-processing result when determining that the load of the target cell after the group mobile user access exceeds the load limit range, where the resource is formed;
  • the allocation pre-processing includes load balancing and/or applying for the second radio resource;
  • the allocating module 123 is configured to perform radio resource allocation according to the pre-processing result, so that when the group mobile user accesses the target cell, the load control of the target cell is within a load limit range.
  • the specific structure of the determining module 121 may include a processor or a processor having a statistical computing function.
  • the pre-processing module 122 and the allocation module 123 may correspond to the same or different processors.
  • the pre-processing module 122 may be a load balancing module, where the pre-processing module 122 is used for load balancing to the third base station, and reserves radio resources for the group mobile user.
  • the third base station is a neighboring base station of the second base station.
  • the pre-processing module 122 may further apply for a second radio resource application module, where the pre-processing module 122 is used as an application module, and may be used to borrow the second radio resource from the third base station; and when the second base station When the second radio resource is borrowed from the third base station, the first radio resource and the second radio resource are allocated, and the radio resource is reserved for the group mobile user; wherein the third base station is A neighboring base station of the second base station.
  • the application module may be further configured to apply to the resource management node for the second radio resource; and when the second base station applies to the second radio resource, allocate the first radio resource and the first Two radio resources, which reserve radio resources for the group mobile users.
  • the application module generally needs to apply for the second radio resource by using information interaction with a third base station or a resource management node, where the application module includes various types of communication interfaces or with the second base station.
  • the communication interface of the peripherals for information exchange is connected.
  • the allocating unit 123 further includes:
  • a determining module configured to determine an access parameter and a resource association parameter according to the user attribute information, where the access parameter includes a time when the group mobile user accesses the target cell, and the group mobile user is at the target At least one of the camping time of the cell; the resource association parameter includes at least one of the following: a quantity of the radio resource, a quality of the radio resource, and a type of the resource.
  • the user attribute information includes a first type parameter for determining the access parameter and a second type parameter for determining a resource association parameter;
  • the first type of parameters include a moving speed, a moving direction, a moving track, and a group bit. And at least one of a time corresponding to the group location and a group mobile route identifier; the group mobile route identifier is index information for querying the moving speed, the moving direction, and/or the moving track;
  • the second type of parameters includes at least one of a group user number, a connected state user number, a service type, a traffic volume, a spectrum resource quality requirement, and a supported frequency band range.
  • the allocating module is configured to perform radio resource allocation according to the access parameter and the resource association parameter.
  • the determining module may include a calculator or a processor having a computing function, and estimate the access time and the number of radio resources according to the information provided in the user attribute information.
  • the access parameter and the resource association parameter may also be directly carried in the user attribute information and received by the second base station.
  • the second base station determines by itself through the determining module, it can provide a more accurate basis for resource allocation of the allocation module.
  • the receiving unit 110 is configured to receive the user attribute information from the first base station, the network management network element, and/or the core network element.
  • the present embodiment provides a second base station, which provides hardware for implementing the method according to the first embodiment of the method, and has the same capability of avoiding overload caused by group mobile user access and improving radio resources. Utilization, stability of wireless access, and user satisfaction.
  • the embodiment provides a communication node, where the communication node is a first base station;
  • the first base station includes:
  • the obtaining unit 210 is configured to acquire user attribute information of the group mobile user.
  • the sending unit 220 is configured to send the user attribute information to the second base station, the core network element, or the network management network element.
  • At least one of the cells formed by the second base station is the group mobile user The target cell to be accessed in advance;
  • the user attribute information is used to perform radio resource allocation for the second base station, so that when the group mobile user accesses the target cell, the load control of the target cell provides a basis within a load limit range.
  • the specific structure of the obtaining unit 210 is different according to the manner of obtaining the user attribute information.
  • the specific structure of the obtaining unit 210 may be a communication interface, and the communication may be The interface can be a wired or wireless communication interface.
  • the specific structure of the obtaining unit 210 may include a processor that extracts information, and the type of the processor may be referred to The device embodiment 1 is correspondingly described in part.
  • the specific structure of the transmitting unit 220 may include various types of communication interfaces, such as an X2 interface or an S1 interface.
  • the obtaining unit 210 is configured to receive at least part of the user attribute information from a relay node that manages the group mobile user and/or receive at least part of the user attribute information from the group mobile user. And/or acquiring at least part of the user attribute information according to a connection status of the first base station and the group mobile user.
  • the first base station may include a database
  • the database may include the partial user attribute information, such as a connection state of a current group mobile user, a mobile trajectory of the vehicle, and the like.
  • the present embodiment provides a first base station, which provides hardware for implementing the method according to the second embodiment, which can assist the second base station to avoid overloading caused by group mobile user access.
  • the embodiment further provides a computer storage medium, wherein the computer storage medium stores computer executable instructions, and the computer executable instructions are used in at least one of the wireless resource allocation methods.
  • the computer storage medium in this embodiment can be used to perform as shown in FIG. 2
  • the computer storage medium may be a storage medium such as a mobile hard disk, an optical disk, a flash disk or a USB flash drive, and may be a non-transitory storage medium.
  • the radio resource allocation method in this example is a resource configuration method that has a backhaul link and directly interacts between the first and second base stations; as shown in FIG. 8, the method includes:
  • the first base station BS1 has a group of mobile users moving on a public transportation (such as a bus) tool, and the vehicle is equipped with a relay node (RN), which is also called a group mobile. user.
  • the relay node RN periodically reports the location information of the relay node, the time information corresponding to the location, the number of user connections of the group mobile user, the group moving speed, and the moving direction to the first base station.
  • the first base station determines, according to the existing prediction method, the target base station that the group mobile user will enter, that is, the second base station BS2.
  • Step 2 When the first base station BS1 determines that the group mobile user will enter the neighboring base station (such as the second base station BS2), the group mobile user attribute information is sent to the second base station BS2 through the X2 port.
  • the first base station BS1 may transmit the group mobile user attribute information by group mobile user-specific messages or by multiplexing existing messages (such as RESOURCE STATUS UPDATE).
  • the group mobile user attribute information is as shown in the following table:
  • Step 3 The second base station BS2 receives the group mobile user attribute information sent by the first base station BS1.
  • the second base station BS2 sends a confirmation message of the group user attribute information to the first
  • the base station BS1 makes the first base station BS1 aware that the second base station BS2 has received the group mobile subscriber attribute information.
  • Step 4 The second base station BS2 performs resource decision according to the received group mobile user attribute information.
  • the second base station BS2 evaluates the time when the group mobile user enters the service area of the second base station according to the moving speed of the group, the location of the group, the time corresponding to the group location, and the group moving direction (for example, the group user enters the service within 1 minute).
  • the reserved spectrum resources (such as 3 MHz spectrum resources are required), or the spectrum resources are reserved according to the allocated reference bandwidth provided by the first base station BS1, or the two are combined to evaluate the reserved spectrum resources.
  • the evaluation algorithm belongs to the prior art and is not described here.
  • the second base station BS2 decides to perform load balancing on the neighboring base station (such as the third base station BS3) according to the foregoing evaluation result, the spectrum resource quality requirement, and the frequency band range supported by the in-vehicle relay node.
  • Step 5 The second base station BS2 sends a resource status request message to the third base station BS3, acquires the resource utilization status of the third base station BS3, and obtains the second base station BS2 and the third base station BS3 by knowing the radio resource utilization information of the third base station BS3. Part of the users in the overlapping coverage area are hand-balanced to the third base station BS3, thereby reserving resources for the group mobile users that are about to enter the second base station BS2, and according to the backhaul link identifier in the group mobile user attribute information. The node is ready to switch.
  • Example 2 The radio resource allocation method in this embodiment is based on a resource configuration method without a backhaul backhaul link and interaction between the base stations through the core network entity;
  • the method includes:
  • the first base station BS1 has a group of mobile users moving on the public transportation.
  • the group of mobile users is also called a group mobile user.
  • the first base station BS1 is based on the location information and the moving speed reported by the mobile user entering the connected state. Get the group mobile user in the service area The location information and the direction of motion of the group mobile users are predicted.
  • the prediction method belongs to the prior art and will not be described here.
  • the first base station determines, according to the existing prediction method, the target base station to which the group mobile user will enter.
  • Step 12 When the first base station BS1 determines that the group mobile subscriber will enter the neighboring base station (such as the second base station BS2), the first base station BS1 reports the group mobile subscriber attribute information to the MME through the S1 interface, and the MME moves to the MME.
  • the second base station sends group mobile user attribute information.
  • the first base station may interact with the MME by group mobile user-specific messages or by multiplexing existing messages (eg, eNB STATUS TRANSFER, MME STATUS TRANSFER).
  • the group mobile user attribute information is as shown in the following table:
  • Step 13 The second base station BS2 evaluates the time and time of the group mobile user entering the service area of the second base station BS2 according to the received group mobile user information, the location of the group, and the time corresponding to the group location, and according to The service type and traffic volume requested by the group mobile user, and the frequency band range supported by the group mobile user, determine to negotiate the available spectrum resources to the neighboring base station.
  • Step 14 The second base station BS2 sends an idle resource negotiation request to the adjacent third base station BS3, where the idle resource negotiation request includes, but is not limited to, the content of the spectrum resource (for example, 5 MHz) of the negotiation application and the time of the resource requirement.
  • the time required by the resource refers to the time when the group mobile user accesses the second base station BS2 and the resource occupation time.
  • the third base station BS3 receives the idle resource negotiation request of the second base station BS2, if the traffic load of the third base station BS3 is low and there is an idle spectrum resource, the idle resource negotiation response is sent to the second base station BS2, and the idle resource negotiation is performed.
  • the response includes the available frequency band range and the time available.
  • Step 15 After receiving the idle frequency band resource that is requested by the third base station BS2, the second base station BS2 reserves resources for the group mobile user that is about to enter the service area of the second base station.
  • Example 3 The radio resource allocation method in this example is based on a resource configuration method in which a backhaul backhaul link and a base station interact with each other through a network management entity; as shown in FIG. 10, the method includes
  • the first base station BS1 has a group of mobile users moving on a public transportation (such as a train) tool, and the vehicle is equipped with a relay node RN, which is also called a group mobile user.
  • the relay node periodically reports the location information of the relay node, the time information corresponding to the location, and the number of user connections of the group mobile user, the vehicle type, the group mobile route identifier, The group moves speed to the first base station.
  • the first base station acquires location information of the group mobile user in the service area according to the location information reported by the in-vehicle relay node in the group mobile user, and predicts a motion direction of the group mobile user, where the prediction method belongs to the current There is technology, so I won't go into details here.
  • the first base station determines, according to the existing prediction method, the target base station to which the group mobile user will enter.
  • Step 22 When the first base station BS1 determines that the group mobile user will enter the neighboring base station (such as the second base station BS2), the first base station BS1 sends the group mobile user attribute information including the target site identifier to the network management entity, the network management After receiving the group mobile user attribute information, the side entity queries the mobile device corresponding mobile track information in the network management entity database according to the vehicle mobile user's vehicle type, the group mobile route identifier, and the location information, and updates the group. The mobile user attribute information is transmitted to the second base station BS2.
  • the group mobile user attribute information is as shown in the following table:
  • Step 23 The second base station BS2 evaluates the time and the dwell time of the group mobile user entering the second base station service area according to the received group mobile user attribute information, that is, according to the group location, the group moving speed, and the moving track. And according to the number of group users and the number of connected users, the quality requirements of the spectrum resources (such as the resource signal interference noise ratio is greater than 20 dB), the supported frequency band range, determine the requirements of the group mobile users for the spectrum resources, and determine the upper management node Apply for available spectrum resources.
  • the quality requirements of the spectrum resources such as the resource signal interference noise ratio is greater than 20 dB
  • the upper management node such as the spectrum coordinator SC, the central control node CCP, the reconfiguration management module, the reconfiguration function module, the reconfiguration entity, the advanced positioning entity, the advanced positioning function, and the coexistence function in the existing cognitive radio system,
  • SC is taken as an example for description.
  • Step 24 The second base station BS2 sends an idle resource request request to the upper layer management node SC, where the idle resource request request includes, but is not limited to, the following content: the amount of resources requested (eg, 10 MHz), When the resource is required, the signal interference noise ratio of the resource is greater than 20 dB, and the frequency band of the resource.
  • the time required by the resource refers to the time when the group mobile user accesses the second base station, and the resource occupation time.
  • the SC selects available idle spectrum resources according to the available idle spectrum resources of the primary system and the protection requirements of the primary system, and sends an idle resource application response to the second base station.
  • the idle resource negotiation response includes the available frequency band range, the available time, and the maximum transmit power corresponding to the available idle channel resources.
  • the SC here is the resource management node described in the above embodiment.
  • Step 25 After receiving the idle frequency band resource applied from the SC, the second base station BS2 reserves resources for the group mobile user that is about to enter the service area of the second base station.
  • the first base station is connected to the group mobile subscriber through the relay node, and the no-backlink link, that is, the group mobile subscriber directly accesses the first base station.
  • the backhaul backhaul link and the scenario through the core network entity can be used as examples.
  • the scenario of step 1 to step 15 in step 1 and example 2 is implemented; the scenario of no backhaul backhaul link and the network management entity interaction can be implemented by step 11 of example 2 and example three steps 22 to 25.
  • the three spectrum decision methods in the above embodiments may also be implemented in combination.
  • the second base station reserves the reserved resources for the group mobile subscribers that are about to enter the second base station service area, if there is no backhaul backhaul.
  • the link the second base station reserves the resource reserved for the group mobile user of the second base station service area as the radio resource for the link between the second base station and the group mobile user.
  • the disclosed device and party The law can be implemented in other ways.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner such as: multiple units or components may be combined, or Can be integrated into another system, or some features can be ignored or not executed.
  • the coupling, or direct coupling, or communication connection of the components shown or discussed may be indirect coupling or communication connection through some interfaces, devices or units, and may be electrical, mechanical or other forms. of.
  • the units described above as separate components may or may not be physically separated, and the components displayed as the unit may or may not be physical units, that is, may be located in one place or distributed to multiple network units; Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present invention may be integrated into one processing module, or each unit may be separately used as one unit, or two or more units may be integrated into one unit; the above integration
  • the unit can be implemented in the form of hardware or in the form of hardware plus software functional units.
  • the foregoing program may be stored in a computer readable storage medium, and the program is executed when executed.
  • the foregoing storage device includes the following steps: the foregoing storage medium includes: a mobile storage device, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.
  • ROM read-only memory
  • RAM random access memory
  • magnetic disk or an optical disk.
  • optical disk A medium that can store program code.
  • the embodiment of the present invention further describes a computer storage medium, wherein the computer storage medium stores a computer program for performing the method for reducing the mobile terminal SAR shown in FIG. 1 in the embodiment of the present invention.

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  • Computer Networks & Wireless Communication (AREA)
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Abstract

L'invention concerne un procédé d'attribution de ressources radio, et un nœud de communication. Le procédé comprend : la réception, par une seconde station de base, d'informations d'attribut d'utilisateur concernant un groupe d'utilisateurs mobiles avant que le groupe d'utilisateurs mobiles n'entre dans une cellule cible (S110) ; et l'exécution, par la seconde station de base, d'une attribution de ressources radio d'après les informations d'attribut d'utilisateur. De cette manière, lorsque le groupe d'utilisateurs mobiles accède à la cellule cible, la charge de la cellule cible est régulée de sorte à être comprise dans une plage de limite de charge (S120). La cellule cible est une cellule formée par la seconde station de base. L'invention concerne également un support de stockage informatique.
PCT/CN2015/091945 2014-11-04 2015-10-14 Procédé d'attribution de ressources radio, nœud de communication, et support de stockage WO2016070701A1 (fr)

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CN106412995B (zh) * 2016-09-08 2019-05-31 北京邮电大学 一种交通流辅助的无线数据传输方法及装置
CN111580973B (zh) * 2020-05-08 2023-03-31 北京字节跳动网络技术有限公司 一种资源配置方法及装置
CN112188467B (zh) * 2020-09-29 2022-05-03 重庆邮电大学 一种基于用户属性的终端发现方法

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