KR20130068015A - Apparatus and method for allocating resources in next generation wireless access network - Google Patents

Abstract

A resource allocation method of a radio access network including a plurality of antenna units and at least one digital unit generates a list of cells generated by the antenna units, and generates a list of terminals receiving services. Receiving the status information of the terminals and determining the resource allocation priority of the terminals based on the status information of the terminals, and collectively managing the radio resources used for data transmission and reception of the cells; Accordingly, it may be configured to include the step of allocating radio resources that are integrated management to the terminals. Therefore, by restricting the resources that are already allocated to the terminal with a high resource allocation priority from being simultaneously allocated in the cell where interference occurs, it is possible to ensure the quality of service of the mobile terminal having a high resource allocation priority.

Description

Resource allocation device and resource allocation method in next generation wireless access network {APPARATUS AND METHOD FOR ALLOCATING RESOURCES IN NEXT GENERATION WIRELESS ACCESS NETWORK}

The present invention relates to a radio access network, and more particularly, a next generation radio access network in which an antenna unit (RU) for transmitting and receiving radio signals and a computing unit (DU) for processing basebands and protocols are separated. An efficient resource allocation apparatus and resource allocation method applicable to the present invention.

A computing unit for baseband signal and protocol processing functions to increase the processing capacity of radio access networks and reduce the cost of capital expenditures (CAPEX) and operating expenditure (OPEX) in an environment where service traffic is rapidly increasing due to recent mobile service advances. Attention has been paid to a next-generation radio access network structure in which a digital unit (DU) and an antenna unit (RU) for separately transmitting and receiving radio signals are separated and arranged. In this structure, the wireless signal transmitted and received from one or more antenna units RU may be centralized in the operation unit DU.

In such a radio access network structure, the interference occurring between the macro cell and the small cells serviced through the antenna units (RUs) installed in the macro cell coverage area, and the interference occurring between the small cells serviced through the antenna units are serviced. Can cause a serious deterioration of quality. Therefore, the radio resource allocation function considering the inter-cell interference in the next generation radio access network structure has a great influence on the system performance.

An object of the present invention is to provide inter-cell interference in a radio access network comprising at least one antenna unit (RU) and a computing unit (DU) for performing centralized processing of baseband signals and protocols of at least one cell serviced through the antenna unit. It is to provide a resource allocation apparatus that enables efficient resource allocation in consideration.

Another object of the present invention is an inter-cell interference in a radio access network including at least one antenna unit (RU) and a computing unit (DU) for performing centralized processing of baseband signals and protocols of at least one cell serviced through the antenna unit. It is to provide a resource allocation method that enables efficient resource allocation in consideration of this.

In accordance with an aspect of the present invention, an apparatus for allocating a resource is provided in a radio access network including at least two antenna units (RUs) and at least one digital unit (DU). And a resource allocation device of the arithmetic unit for allocating radio resources to terminals, comprising: a cell information management unit managing information of cells generated by the antenna units, and integrating information on radio resources used for data transmission and reception of the cells; Integrated cell resource management unit for managing, a terminal information management unit for managing information of the terminals provided with the service through the cells, a terminal state information management unit for managing the state information of the terminals, the terminal information management unit and the terminal state information management unit The resource allocation priority of the terminals is determined based on the stored information and state information of the terminals. Allocating radio resources managed by the integrated cell resource management unit to the terminals according to the priority determined by the integrated cell resource allocation priority determining unit and the integrated cell resource allocation priority determining unit, and the information of the integrated cell resource management unit. It may be configured to include an integrated cell resource allocator for changing the.

Here, the antenna unit is a component for transmitting and receiving a radio signal, the computing unit is a component for performing a baseband signal and protocol processing, the antenna unit and the calculating unit is a CPRI (Common Public Radio Interface) or OBSAI (Open Base station architecture interface).

Here, the integrated cell resource management unit 'radio resources capable of resource allocation', 'radio resource limited resource allocation', 'radio resource already allocated resources' of the radio resources of the cells managed by the cell information management unit It can be configured to manage by dividing.

Here, the status information of the terminal managed by the terminal status information management unit includes at least one of resource allocation target data buffer status information, quality of service (QoS) requirements, and wireless channel quality information of the terminal. It may include one. In this case, the radio channel quality information may include channel quality information (CQI) information informed by the terminal and information about a cell causing interference to the terminal.

In this case, the information on the cell causing interference to the terminal may further include information on radio resources causing interference to the terminal by the cell causing the interference, in this case, the integrated cell resource management unit When the information on the radio resource causing interference to the terminal includes the resource allocated to the terminal, the allocated resource in the radio resource information of the cell generating the interference is' radio allocation in which resource allocation is limited. It can be configured to manage by changing to '.

Herein, the integrated cell resource allocation priority determining unit may include resource allocation target data buffer status information, quality of service (QoS) requirements, and a wireless channel of the terminal among the state information of the terminal. It may be configured to determine the resource allocation priority of the terminal using a PF (Proportional Fair) algorithm considering at least one of the quality information.

Herein, the integrated cell resource allocator transmits data in the order of resources having good radio channel quality among radio resources capable of allocating resources to the corresponding terminals in order of high priority terminals determined by the integrated cell resource allocation priority determiner. It may be configured to allocate a radio resource for the. In this case, for the radio resource allocated by the integrated cell resource allocator, the integrated cell resource manager may be configured to change and manage the information on the allocated radio resource into a radio resource that has already been allocated.

In accordance with another aspect of the present invention, there is provided a resource allocation method comprising: a radio access network including at least two antenna units (RUs) and at least one digital unit (DU); In the step of allocating radio resources to the terminal, the resource allocation method of the operation unit, cell list generation step of generating a list of cells generated by the antenna unit, a list of terminals receiving a service through the cells A terminal list generating step of generating, the terminal status information receiving step of receiving the status information of the terminals and the resource allocation priority of the terminals managed by the list of terminals is determined based on the status information of the terminals, Integrated management of radio resources used for data transmission and reception and communication to terminals according to the determined priority An integrated cell resource allocating step of allocating the radio resources that are collectively managed may be included.

In the integrated cell resource allocating step, the radio resources used for data transmission and reception of the cells are defined as 'radio resources capable of resource allocation', 'radio resources limited resource allocation', and 'radio resources already allocated to resources' for each cell. It can be configured to manage separately.

In the receiving of the terminal status information, the status information of the terminal includes at least one of resource allocation target data buffer status information, quality of service (QoS) requirements, and wireless channel quality information of the terminal. It may include. In this case, the radio channel quality information may include channel quality information (CQI) information informed by the terminal and information about a cell causing interference to the terminal.

In this case, the information on the cell causing the interference to the terminal further includes information on radio resources that cause interference to the terminal by the cell causing the interference, the step of allocating the integrated cell resource, the terminal If the information on the cell causing interference to include the resource allocated to the terminal, the allocated resource in the radio resource information of the cell causing the interference is changed to 'radio resource with limited resource allocation' It can be configured to.

In the integrated cell resource allocation step, the resource allocation priority of the terminals includes, among the status information of the terminal, resource allocation target data buffer status information of the terminal, quality of service (QoS) requirements, and At least one of the radio channel quality information of the terminal may be determined using a PF (Proportional Fair) algorithm.

The integrated cell resource allocating step may be configured to allocate radio resources for data transmission in order of resources having good radio channel quality among radio resources that can be allocated resources to the corresponding terminals in the order of the higher priority terminals.

According to the present invention, in a next-generation radio access network capable of centralized processing of baseband signals and protocols of one or more cells, the radio resources of the antenna units are collectively managed to provide services to the terminals in order of terminals having a high resource allocation priority. By allocating the resources of the providing cell and restricting the allocated resources from being simultaneously allocated in the cell in which the interference occurs, it is possible to ensure the quality of service of the mobile terminal with high resource allocation priority in the integrated cell.

In addition, by dynamically determining the resource allocation resources of the target cell to be allocated resources at each resource allocation time and the resource region to which the resource allocation is restricted, based on whether the mobile terminals request resource allocation and the resource allocation priority of the mobile terminal, Even when the transmission traffic pattern of the mobile terminal is changed or the mobile terminal moves to a location, the radio resources that can be used between cells are flexibly allocated to increase the use efficiency of the radio resources and to improve the quality of service.

1 is a conceptual diagram illustrating a next generation radio access network structure to which the present invention is applied.
2 is a conceptual diagram illustrating an example of a fractional frequency reuse (FFR) technique.
3 is a block diagram illustrating a configuration example of a resource allocation apparatus of a radio access network according to the present invention.
4 is a flowchart illustrating a resource allocation method of a next generation wireless access network according to the present invention.
5 is a flowchart illustrating an integrated cell resource allocation step constituting a resource allocation method according to the present invention.

While the invention is susceptible to various modifications and alternative forms, specific embodiments thereof are shown by way of example in the drawings and will herein be described in detail.

It should be understood, however, that the invention is not intended to be limited to the particular embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting of the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this application, the terms "comprise" or "have" are intended to indicate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, and one or more other features. It is to be understood that the present invention does not exclude the possibility of the presence or the addition of numbers, steps, operations, components, components, or a combination thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the relevant art and are to be interpreted in an ideal or overly formal sense unless explicitly defined in the present application Do not.

As used herein, a “terminal” includes a mobile station (MS), a user equipment (UE), a user terminal (UT), a wireless terminal, an access terminal (AT), a terminal, a subscriber unit, A subscriber station (SS), wireless device, wireless communication device, wireless transmit / receive unit (WTRU), mobile node, mobile or other terms may be referred to. Various embodiments of the terminal may be used in various applications such as cellular telephones, smart phones with wireless communication capabilities, personal digital assistants (PDAs) with wireless communication capabilities, wireless modems, portable computers with wireless communication capabilities, Devices, gaming devices with wireless communication capabilities, music storage and playback appliances with wireless communication capabilities, Internet appliances capable of wireless Internet access and browsing, as well as portable units or terminals incorporating combinations of such functions However, the present invention is not limited thereto.

As used herein, a "base station" generally refers to a fixed or mobile point of communication with a terminal, and includes a base station, a Node-B, an eNode-B, and a BTS. The term “base transceiver system”, “access point”, relay, and femto-cell may be used collectively.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In order to facilitate the understanding of the present invention, the same reference numerals are used for the same constituent elements in the drawings and redundant explanations for the same constituent elements are omitted.

In the present invention, an antenna unit (RU) may be used interchangeably with the term "RF Remote Head". In addition, the digital unit (DU) may include one high output antenna unit RU having a large coverage to form one macro cell. In this case, the operation unit may be configured to include a high power antenna unit (RU) to form a macro cell integrally (that is, located in the same geographic space), geographically similar to the other antenna unit and the antenna unit forming a macro cell. It may be configured apart. If the operation unit is integrally formed with the high output antenna unit, it may be defined as a conventional macro cell base station including the operation unit and the high output antenna unit integrated with the operation unit.

1 is a conceptual diagram illustrating the structure of a next-generation radio access network 100 to which the present invention is applied, and includes an antenna unit for generating a macro cell and an operation unit 10 and antenna units 20 for forming small cells. It illustrates the environment in which the cells generated by them overlap.

Referring to FIG. 1, one or more antenna units (RUs) are geographically dispersed within a coverage area of a macro cell, and a common public radio interface (CPRI) or an OBSAI (Operation Control Unit) capable of delayed transmission and reception between the computation unit DU and the antenna units is possible. The structure is connected by an optical communication technology 30 such as an Open Base Station Architecture Interface.

In FIG. 1, a cell serving an antenna unit (RU) for transmitting / receiving a radio signal by the RRH and serving the RRH may accommodate an increase in traffic in the macro cell area and a coverage hole area in the macro cell. Can improve the quality of service.

In FIG. 1, wireless signals transmitted and received from one or more antenna units may be transmitted and received without delay to the operation unit, and wireless signals transmitted and received from the antenna unit may be centralized in the operation unit.

In FIG. 1, an operation unit performs a function of an operation unit (DU) that integrates and manages radio resources transmitted and received from one or more antenna units (RUs) installed in a coverage area of a macro cell and processes radio signals and protocols.

In the next generation wireless access network structure of FIG. 1, interference occurring between the macro cell and the small cell serviced through the antenna unit installed in the macro cell coverage area, and interference between the small cells serviced through the antenna unit cause severe degradation of service quality. can do. Therefore, the radio resource allocation function considering the inter-cell interference in the next generation wireless access network structure has a great influence on the system performance.

Inter-cell interference control techniques include various frequency redistribution techniques.

Fractional Frequency Reuse (FFR) is a method of dividing an entire set of available frequencies into several (eg, three) frequency domains and allocating a set of frequencies that can be used in a cell so that there is no intercell interference. For example, the available frequency set of each cell is a frequency set in consideration of user interference, which is obtained by subtracting a frequency set that cannot be used in a corresponding cell in the entire frequency domain.

2 is a conceptual diagram illustrating an example of a fractional frequency reuse (FFR) technique.

That is, the FFR (Fractional Frequency Reuse) technology is a technique for dividing the entire frequency domain into a cell boundary and a cell boundary in each cell, and assigning frequency regions for terminals located at the boundary between adjacent cells to be orthogonal to each other. In FIG. 2, the frequency resources that can be used in the boundary region between adjacent cells are allocated to be orthogonal, and the inner region of the cell uses all the frequency regions.

Inter-cell interference control technology semi-statically divides and allocates the usable frequency range between cells, so it can't flexibly reflect the spatio-temporal fluctuations of user traffic that changes in real time, which wastes radio resources of the wireless access network and guarantees quality of service. There is a problem.

3 is a block diagram illustrating a configuration example of a resource allocation apparatus of a radio access network according to the present invention.

The resource allocation apparatus 300 according to the present invention may be located in the operation unit DU managing the plurality of antenna units RU in the conceptual diagram of FIG. 1. Referring to FIG. 3, the apparatus for allocating resources according to the present invention includes a cell information managing unit 301, an integrated cell resource managing unit 302, a terminal information managing unit 303, a terminal state information managing unit 304, and an integrated cell resource allocation priority. The determination unit 305 and the integrated cell resource allocation unit 306 may be configured.

First, the cell information management unit 301 generates and manages a cell list including at least one cell to which radio resources are allocated in the resource allocation apparatus according to the present invention. That is, the cell information manager 301 generates and comprehensively manages a list of cells generated by the antenna units (RUs) managed by the resource allocation apparatus according to the present invention. Typically, one or more cells may be generated by one antenna unit (RU).

Next, the integrated cell resource manager 302 integrates and manages information on radio resources transmitted and received through the cells included in the cell information manager 301.

The integrated cell resource management unit 302 can 'allocate radio resources' (ie, available radio resources that can be allocated), 'radio resources for which resource allocation is limited', and 'already resource allocation'. And radio resources'.

Herein, " radio resource " as an object of allocation means a radio resource specified two-dimensionally by time and frequency in the OFDM modulation scheme, a code resource in the CDMA modulation scheme, or various modulation schemes. The term encompasses all of the layer resources when combined with MIMO transmission (particularly, spatial multiplexing).

Next, the terminal information manager 303 may be configured to comprehensively manage a list of mobile terminals provided with services through cells included in the cell information manager 301. As an identifier for identifying terminals managed by the terminal information manager 303, a Cell Radio Network Temporary Identifier (C-RNTI), a Temporary Mobile Subscriber Identity (TMSI), or the like may be used.

Next, the terminal state information manager 304 is a component for managing the state information of the mobile terminal included in the terminal information manager 303.

In this case, the state information of the mobile terminal may include at least one of buffer status information, data quality of service (QoS) requirements, and wireless channel quality information of the mobile terminal. It may include one.

The radio channel quality may include channel quality indicator (CQI) information received from a terminal and information about an interference cell that causes interference to the mobile terminal.

In this case, the received CQI information may be a CQI (wideband CQI) information of a full frequency band or a subband CQI (subband CQI) reported by a mobile terminal by a periodic CQI report request or an aperiodic CQI report request. ) May include information.

In addition, the information on the interfering cells may include information about radio resources that are interfered by the interfering cells. The inter-cell interference information may include information on inter-cell received signal strength (RSRP, Reference Signal Received Power) and received signal quality (RSRQ, Reference Signal Received Quality) measurement information or relative narrowband transmission power (RNTP) information. Can be measured.

Next, the integrated cell resource allocation priority determiner 305 determines the resource allocation priority for all mobile terminals included in the terminal information manager 303. The resource allocation priority may be determined based on at least one of status information of the terminal, for example, buffer status information of data, quality of service (QoS) requirements, and wireless channel quality information of a mobile terminal. It can be determined by a predetermined algorithm. For example, the integrated cell resource allocation priority determiner 305 may determine the resource allocation priority of the terminal using a proportional fair (PF) algorithm.

Lastly, the integrated cell resource allocator 306 is configured to provide radio resources of a cell that provides services to the mobile terminals in order of the mobile terminals having the highest resource allocation priority determined by the integrated cell resource allocation priority determiner 305. It is a component for allocating and changing the information of the integrated cell resource management unit.

In this case, among the available radio resources of a cell providing a service to a terminal targeted for radio resource allocation according to priority, a radio resource for data transmission among radio resources capable of allocating resources in order of resources having good radio channel quality for the terminal. Assign. About the radio resources allocated by the integrated cell resource allocator 306, the integrated cell resource manager changes the information about the allocated radio resources from 'assignable radio resources' to 'already allocated radio resources' and reassigns them to other terminals. Should be prevented.

If there is cell information that causes interference with respect to the allocated resource in the interference information of the mobile terminal, the allocated resource is determined from the radio resource information of the cell that generates the interference stored in the integrated cell resource management unit. Radio resources whose allocation is restricted. By using this scheme, the integrated cell resource allocator 306 of the present invention can prevent resource allocation at the same time in a cell that causes interference with respect to a resource allocated to a resource allocation target terminal. As a result, the radio resources already allocated to the mobile terminal having the high resource allocation priority are restricted from being simultaneously allocated in the cell that generates the interference, so that the quality of service of the resource allocation target terminal having the high resource allocation priority in the integrated cell is limited. Can be guaranteed.

Finally. The integrated cell resource allocator 306 allocates the resource to the target subframe when there is no longer a target cell in which there is a radio resource available in the target subframe to which the resource is allocated, or when there are no more terminals requesting resource allocation. If there is a terminal requesting resource allocation, the above-described operation is repeated according to the priority of the terminal.

4 is a flowchart illustrating a resource allocation method of a next generation wireless access network according to the present invention.

Referring to FIG. 4, the resource allocation method according to the present invention includes a cell list generation step S410, a terminal list generation step S420, a terminal state information reception step S430, and an integrated cell resource allocation step S440. Can be configured.

The cell list generation step S410, the terminal list generation step S420, and the terminal state information reception step S430 are steps of collecting information for performing the integrated cell resource allocation step S440, which are generated by the antenna unit. The steps of generating or collecting information of cells and managing the information, generating a list of information of terminals provided with services by the cells, and receiving and managing status information of the terminals from the terminal.

Here, the information of the terminals constituting the list of terminals, the status information of the terminals, etc. are duplicated because they are the same as the contents of the terminal information and the terminal state information described above in the description of the terminal information manager and the terminal state information manager of FIG. 3. The description is omitted.

The integrated cell resource allocation step (S440) determines the resource allocation priority of the terminals managed by the list of terminals based on the state information of the terminals, and collectively manages radio resources used for data transmission and reception of the cells, The step of allocating radio resources that are collectively managed to the terminals according to the determined priority.

5 is a flowchart illustrating an integrated cell resource allocation step constituting a resource allocation method according to the present invention.

Referring to FIG. 5, the integrated cell resource allocation step S440 may be described in detail as steps S441 to S445.

In step S441, the priority of allocating cell resource allocation is determined for all mobile terminals provided with a service through a cell included in the unified cell list for each target subframe to be allocated. The resource allocation priority is buffer status information of data for requesting resource allocation of the mobile terminal for a mobile terminal that requests a resource allocation among mobile terminals provided with a service through a cell included in the integrated cell list. It may be determined using a PF (Proportional Fair) algorithm considering the quality of service (QoS) requirements and the CQI of the mobile terminal.

Next, in step S442, target mobile terminals to be allocated resources are selected in order of the mobile terminals having the highest resource allocation priority.

Next, in step S443, a resource for data transmission of the mobile terminal is allocated from available radio resources of a cell providing a service to the resource allocation target mobile terminal. At this time, the radio resources are allocated in order of frequency bands having good radio channel quality among the available radio resources of the cell.

Next, in step S444, the resource allocation target cell is changed to the resource to which the allocation resource is allocated.

Finally, in step S445, if there is cell information generating interference with respect to the allocated resource in the interference information of the mobile terminal, the resource in the interference generating cell is a radio resource whose resource allocation is restricted. Change it.

Accordingly, the resource allocation method according to the present invention prioritizes resource allocation in order to prevent a deterioration in quality of service due to inter-cell interference that occurs when resource allocation is simultaneously performed in a cell that generates the interference for the resource allocated to the resource allocation target mobile terminal. By limiting the simultaneous allocation of resources in the cell that generates the interference to the resources allocated to the mobile terminal with higher priority, the quality of service of the resource allocation target mobile terminal with high resource allocation priority in an integrated cell can be guaranteed. have.

In addition, an apparatus and method for allocating resources in a next generation wireless access network according to the present invention may be based on resource allocation priority of a mobile terminal receiving a service through a cell included in the integrated cell list and resource allocation priority of the mobile terminal. Resource allocation of the target cell to be allocated at each allocation point Dynamically determines available resources and resource areas to which resource allocation is restricted, so that they can be used between cells even when the transmission traffic pattern of the mobile terminal is changed or the mobile terminal moves its location. Flexible allocation of radio resources can increase the efficiency of use of radio resources and improve the quality of service.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined in the appended claims. It will be possible.

300: resource allocation device
301: cell information management unit 302: integrated cell resource management unit
303: terminal information management unit 304: terminal state information management unit
305: integrated cell resource allocation priority determining unit
306: integrated cell resource allocation

Claims (16)

In the radio access network consisting of at least two antenna unit (RU: Radio Unit) and at least one digital unit (DU), the resource allocation device of the operation unit for allocating radio resources to the terminal,
A cell information management unit managing information of cells generated by the antenna units;
An integrated cell resource manager configured to collectively manage information on radio resources used for data transmission and reception of the cells;
A terminal information management unit managing information of the terminals provided with services through the cells;
A terminal state information management unit managing state information of the terminals;
An integrated cell resource allocation priority determining unit configured to determine a resource allocation priority of the terminals based on information and state information of the terminals stored in the terminal information manager and the terminal state information manager; And
An integrated cell resource allocator configured to allocate radio resources managed by the integrated cell resource manager to the terminals according to the priority determined by the integrated cell resource allocation priority determiner and change information of the integrated cell resource manager; Resource allocation device. The method according to claim 1,
The antenna unit is a component for transmitting and receiving wireless signals, the computing unit is a component for performing a baseband signal and protocol processing, the antenna unit and the calculating unit is a common public radio interface (CPRI) or Open Base Station Architecture (OBSAI) Resource allocation apparatus, characterized in that connected to. The method according to claim 1,
The integrated cell resource manager divides the radio resources of cells managed by the cell information manager into 'radio resources capable of resource allocation', 'radio resources limited resource allocation', and 'radio resources already allocated to resources'. Resource allocation apparatus characterized in that for managing. The method according to claim 1,
The state information of the terminal managed by the terminal state information management unit includes at least one of resource allocation target data buffer status information, quality of service (QoS) requirements, and wireless channel quality information of the terminal. Resource allocation apparatus, characterized in that. The method of claim 4,
The radio channel quality information includes channel quality information (CQI) information informed by the terminal and information on a cell causing interference to the terminal. The method according to claim 5,
The information on the cell causing the interference to the terminal includes information on the radio resource causing the interference by the cell causing the interference,
The integrated cell resource management unit 'resources the allocated resource in the radio resource information of the cell generating the interference when the resource allocated to the terminal is included in the information on the radio resource causing interference to the terminal. And resource management apparatus for changing and managing the limited radio resources. The method of claim 4,
The integrated cell resource allocation priority determining unit may include, among the status information of the terminal, among resource allocation target data buffer status information, quality of service (QoS) requirements, and wireless channel quality information of the terminal. And a resource allocation priority of the terminal using a PF (Proportional Fair) algorithm considering at least one. The method according to claim 1,
The integrated cell resource allocation unit performs radio for data transmission in the order of resources having good radio channel quality among radio resources that can be allocated to the corresponding terminals in the order of the higher priority terminals determined by the integrated cell resource allocation priority determining unit. Resource allocation apparatus, characterized in that to allocate resources. The method according to claim 8,
Regarding the radio resources allocated by the integrated cell resource allocating unit, the integrated cell resource management unit changes and manages the information on the allocated radio resources into a radio resource that has already been allocated. Device. In the radio access network consisting of at least two antenna unit (RU: Radio Unit) and at least one digital unit (DU), the resource allocation method of the computing unit for allocating radio resources to the terminal,
A cell list generation step of generating a list of cells generated by the antenna units;
A terminal list generation step of generating a list of terminals provided with services through the cells;
Receiving terminal status information for receiving status information of the terminals; And
The resource allocation priority of the terminals managed by the list of terminals is determined based on state information of the terminals, the radio resources used for data transmission and reception of the cells are collectively managed, and the terminals are allocated according to the determined priority. An integrated cell resource allocating step of allocating a radio resource that is integratedly managed. The method of claim 10,
In the integrated cell resource allocating step, the radio resources used for data transmission and reception of the cells are defined as 'radio resources capable of resource allocation', 'radio resources limited resource allocation', and 'radio resources already allocated to resources' for each cell. Resource allocation method characterized in that the management. The method of claim 10,
In the receiving of the terminal status information, the status information of the terminal includes at least one of resource allocation target data buffer status information, quality of service (QoS) requirements, and wireless channel quality information of the terminal. Resource allocation method comprising a. The method of claim 12,
The radio channel quality information includes channel quality information (CQI) information notified by the terminal and information on a cell causing interference to the terminal. The method according to claim 13,
The information on the cell causing the interference to the terminal includes information on the radio resources causing interference to the terminal by the cell causing the interference,
In the step of allocating an integrated cell resource, when the resource allocated to the terminal is included in the information on the radio resource causing interference to the terminal, the allocated resource is referred to as 'resource' in the radio resource information of the cell generating the interference. Resource allocation method characterized in that the management by changing the radio resources' restriction. The method of claim 12,
In the integrated cell resource allocation step, the resource allocation priority of the terminals includes, among the status information of the terminal, resource allocation target data buffer status information of the terminal, quality of service (QoS) requirements, and At least one of the radio channel quality information of the terminal is determined using a PF (Proportional Fair) algorithm. The method of claim 10,
The integrated cell resource allocation step includes allocating radio resources for data transmission in the order of resources having good radio channel quality among radio resources that can be allocated to the corresponding terminals in the order of the terminal having the higher priority. Assignment method.

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