JP5097580B2 - Radio resource allocation device, radio resource allocation method, radio device, and computer program - Google Patents

Description

  The present invention relates to a radio resource allocation device, a radio resource allocation method, a radio device, and a computer program.

  In recent years, a standard for a third generation (3G) mobile communication system successor system (next generation cellular system) has been studied in the standardization project “3GPP: 3rd Generation Partnership Project, 3GPP2: 3rd Generation Partnership Project 2”. Yes. In the next generation cellular system, OFDMA (Orthogonal Frequency Division Multiple Access) is used as a multiple access method, and one of the considerations is the downlink (link in the direction from the radio base station to the mobile terminal). There is a radio resource allocation.

  FIG. 4 is a schematic diagram illustrating a conventional radio resource allocation method. In the technique described in Non-Patent Document 1, radio resource allocation methods called BRCH (Block Resource Channel) and DRCH (Distributed Resource Channel) are employed in the downlink. 16 subcarriers × 8 OFDM (Orthogonal Frequency Division Multiplexing) symbols are radio resource allocation units (BesesNode: BN) destined for each mobile terminal, and BRCH allocates 1 BN to continuous radio resources. On the other hand, DRCH allocates 1BN in a distributed manner. BRCH is an arrangement method in which very good characteristics can be obtained if the best frequency band can be allocated to a certain mobile terminal. DRCH is an arrangement method having a frequency diversity effect that improves communication stability by dispersing frequency bands.

  Further, “Multiplexing Mode 1” and “Multiplexing Mode 2” are adopted as the arrangement of the radio resources of these BRCH and DRCH. In “Multiplexing Mode 1”, radio resources assigned as DRCH are embedded in the BRCH region. In the example illustrated in FIG. 4, a cell indicated as “DRCH Structures” is a DRCH radio resource, and a cell indicated as “BRCH Structures” is a BRCH radio resource. Also, in “Multiplexing Mode 2”, an area allocated as BRCH (area indicated as “BRCH zone” in FIG. 4B) and an area allocated as DRCH (“DRCH zone” in FIG. 4B) Is divided). These radio resource arrangement methods can be selected by an operator. When radio resources are allocated to each mobile terminal, the arrangement of BRCH and DRCH is determined, and radio resources for each mobile terminal must be allocated to the partitioned radio resource area.

In the prior art described in Non-Patent Document 2, a part of information necessary for assigning radio resources to mobile terminals is notified from each mobile terminal. Each mobile terminal checks the downlink propagation path characteristics, and notifies the base station of the average characteristics of all bands used for the data channel and the characteristics in the best subband. Here, the subband is a frequency band including a plurality of subcarriers.
3GPP2, C.S0084-001-0 v2.0, “Physical Layer for Ultra Mobile Broadband (UMB) Air Interface Specification,” September 2007 3GPP2, C.S0084-002-0 v2.0, “Medium Access Control Layer for Ultra Mobile Broadband (UMB) Air Interface Specification,” September 2007

However, in the above-described conventional technology, no consideration is given as to how to allocate radio resources in the BRCH region or DRCH region to mobile terminals. These are considered to be implementation-dependent technologies in Non-Patent Documents 1 and 2, but based on the priority information of the mobile terminal, (1) in the order of the DRCH region and the BRCH region in order from the mobile terminal with the highest priority. A method of allocating, or (2) a method of allocating in the order of BRCH region and DRCH region in order from the mobile terminal with higher priority can be easily assumed.
However, in the case of the above method (1), it is possible to obtain better characteristics for a certain mobile terminal when allocating radio resources in the BRCH area of the best subband for the mobile terminal than allocating radio resources in the DRCH area. There is a problem that there is a case.
In the case of the above method (2), when the radio resource of the best subband BRCH region cannot be allocated to a certain mobile terminal, the radio resource of the non-best subband BRCH region is allocated to the mobile terminal. . In this case, there is a problem that better characteristics may be obtained if radio resources in the DRCH region that can take an average frequency band are allocated.
In this way, a mobile terminal with a high priority is not necessarily assigned a good radio resource. In addition, when a mobile terminal with a high priority cannot allocate a good radio resource, the system throughput is reduced.
The present invention has been made in view of the above points, and an object of the present invention is to provide a radio resource allocating apparatus and radio that can effectively allocate radio resources to each mobile terminal in a mobile communication system that performs radio resource allocation. A resource allocation method, a wireless device, and a computer program are provided.

  The present invention has been made to solve the above-described problems, and one aspect of the present invention is a radio resource allocation apparatus that determines radio resources to be allocated to a mobile terminal, in which a frequency block that provides the best characteristics is obtained. An optimal radio resource allocation determination unit that determines whether to allocate radio resources in the allocation area, and an optimal radio resource allocation determination unit that determines that radio resources in the block allocation area are not allocated, A distributed allocation determining unit that determines whether or not to allocate radio resources, and a radio in a block allocation region other than a frequency that provides the best characteristics when it is determined by the distributed allocation determining unit that allocation is not performed in the distributed allocation region A radio resource allocation determining unit for determining whether to allocate a resource, or It is the location.

  In addition, an aspect of the present invention is a radio resource allocation apparatus that determines radio resources to be allocated to a mobile terminal, and is an optimal radio that determines whether or not to allocate radio resources in a block allocation area having a frequency that provides the best characteristics. A resource allocation determination unit, and a distributed allocation determination unit that determines whether or not to allocate radio resources in the distributed allocation region when it is determined by the optimal radio resource allocation determination unit that radio resources in the block allocation region are not allocated; A radio resource allocation determination unit that reserves radio resources when the distributed allocation determination unit determines not to allocate to the distributed allocation area, the radio resource allocation determination unit includes: A radio resource allocation apparatus characterized in that allocation is determined in order from a mobile terminal having a higher priority.

  According to another aspect of the present invention, there is provided a radio apparatus comprising: the radio resource allocation apparatus described above; and a radio resource mapping unit that allocates radio resources determined by the radio resource allocation apparatus to each mobile terminal. is there.

  Another aspect of the present invention is a radio resource allocation method for determining radio resources to be allocated to a mobile terminal, wherein optimal radio for determining whether to allocate radio resources in a block allocation area having a frequency that provides the best characteristics. A resource allocation determining step; and a distributed allocation determining step for determining whether to allocate a radio resource in the distributed allocation area when it is determined by the optimal radio resource allocation determining step that the radio resource is not allocated to the block allocation area; A radio resource allocation determination step for determining whether or not to allocate a radio resource in a block allocation area other than the frequency at which the best characteristic is obtained when it is determined by the allocation determination step that the allocation is not performed in the distributed allocation area This is a radio resource allocation method.

  Another aspect of the present invention is a radio resource allocation method for determining radio resources to be allocated to a mobile terminal, wherein optimal radio for determining whether to allocate radio resources in a block allocation area having a frequency that provides the best characteristics. A resource allocation determining step; and a distributed allocation determining step for determining whether to allocate a radio resource in the distributed allocation area when it is determined by the optimal radio resource allocation determining step that the radio resource is not allocated to the block allocation area; When it is determined that the allocation determination step does not allocate to the distributed allocation area, a radio resource allocation securing step for securing radio resources, and a radio resource for determining the allocation of the secured radio resources in order from the mobile terminal with the highest priority A radio resource allocation comprising: an allocation determining step. It is a method.

  Another aspect of the present invention is a computer program for determining radio resources to be allocated to a mobile terminal, wherein optimal radio resource allocation for determining whether or not to allocate radio resources in a block allocation area having a frequency that provides the best characteristics. A distributed allocation determining step for determining whether to allocate radio resources in the distributed allocation area when it is determined by the determining step and the optimal radio resource allocation determining step that the radio resource is not allocated to the block allocation area; and the distributed allocation determination If it is determined in the step that it is not allocated to the distributed allocation area, a radio resource allocation determination step for determining whether or not to allocate a radio resource in a block allocation area other than the frequency that provides the best characteristics is executed on the computer A computer program characterized by

  Another aspect of the present invention is a computer program for determining radio resources to be allocated to a mobile terminal, wherein optimal radio resource allocation for determining whether or not to allocate radio resources in a block allocation area having a frequency that provides the best characteristics. A distributed allocation determining step for determining whether to allocate radio resources in the distributed allocation area when it is determined by the determining step and the optimal radio resource allocation determining step that the radio resource is not allocated to the block allocation area; and the distributed allocation determination If it is determined in the step that no allocation is made to the distributed allocation area, a radio resource allocation securing step for securing radio resources, and a radio resource allocation determination for sequentially allocating the secured radio resources from a mobile terminal having a higher priority. And having the computer execute the steps Is a computer program to be.

  According to the present invention, the radio resource allocation device selects radio resources in the order of the block allocation area of the frequency that provides the best characteristics, the dispersion area, and the block allocation area other than the frequency that provides the best characteristics. Therefore, a mobile terminal having a high priority can use an optimal radio resource. This makes it possible to improve communication quality and increase system capacity.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a block diagram showing a configuration of a wireless device 1 according to the present invention. The wireless device 1 according to the present embodiment includes a wireless resource allocation device 10 and a wireless resource mapping unit 20. The radio apparatus 1 includes priority information of each mobile terminal, transmission radio resource amount information in all bands of each mobile terminal, transmission radio resource amount information in the best subband of each mobile terminal, and best subband of each mobile terminal. Information is input, and processing described later is executed in order from the mobile terminal with the highest priority, and radio resources are allocated in the downlink of the OFDMA scheme (link in the direction from the radio base station to the mobile terminal). Here, the priority information is information indicating the priority of the mobile terminal. The priority is determined by a scheduling algorithm (Proportional Fairness method, Round Robin method, etc.). The transmission radio resource amount information is information indicating the amount of radio resources necessary for the mobile terminal in BN units. The required radio resource amount is obtained from the buffer amount of transmission data addressed to the mobile terminal from the base station and the downlink propagation path characteristics. The downlink propagation path characteristics are reported from the mobile terminal. The best subband information is information indicating which subband has the best characteristics for the mobile terminal.

The radio resource allocation device 10 includes an optimal subband allocation determination unit 11 (optimal radio resource allocation determination unit), a DRCH allocation determination unit 12 (distributed allocation determination unit), and a radio resource allocation determination unit 13. . The radio resource allocating device 10 includes transmission radio resource amount information in all bands of the allocation target mobile terminal, transmission radio resource amount information in the best subband of the allocation target mobile terminal, and best subband information of the allocation target mobile terminal. As an input, the radio resource to be allocated to the allocation target mobile terminal is determined, and the allocated radio resource information is output to the radio resource mapping unit 20. Here, the allocated radio resource information is information indicating which radio resource is allocated to the allocation target mobile terminal.
The radio resource mapping unit 20 allocates radio resources to each mobile terminal based on the allocated radio resource information notified from the radio resource allocation device 10.

  The optimal subband allocation determination unit 11 determines whether or not radio resources in the BRCH region (block allocation region) of the subband (hereinafter referred to as the best subband) from which the best characteristics are obtained can be allocated to the allocation target mobile terminal. to decide. Here, the optimum subband allocation determination unit 11 transmits the transmission radio resource amount information in the entire band of the allocation target mobile terminal, the transmission radio resource amount information in the best subband of the allocation target mobile terminal, and the best subband of the allocation target mobile terminal. Band information is input.

  Specifically, the optimum subband allocation determination unit 11 determines whether or not the necessary radio resource amount in the best subband can be allocated to the BRCH region of the best subband. Here, for example, the optimum subband allocation determination unit 11 can allocate radio resources to the allocation target mobile terminal when there is sufficient free space for the necessary radio resource amount in the BRCH region of the best subband. If it is determined that there is no space, it is determined that allocation is not possible.

  If radio resources in the best subband BRCH region can be allocated to the allocation target mobile terminal, the optimal subband allocation determination unit 11 determines to allocate radio resources in the best subband BRCH region to the allocation target mobile terminal. Then, the radio resource mapping unit 20 is notified of the allocated radio resource information. When the allocation cannot be performed, the optimum subband allocation determination unit 11 outputs the transmission radio resource amount information in the entire band of the allocation target mobile terminal to the DRCH allocation determination unit 12.

  The DRCH allocation determination unit 12 determines whether or not radio resources in the DRCH region (distributed allocation region) can be allocated to the allocation target mobile terminal. Specifically, the DRCH allocation determination unit 12 determines whether a required radio resource amount in all bands can be allocated to the DRCH region. Here, for example, the DRCH allocation determination unit 12 determines that the radio resource can be allocated to the allocation target mobile terminal when there is a sufficient vacancy for the necessary radio resource amount in the DRCH region, and when there is no vacancy. Determines that it cannot be assigned.

  If the radio resource in the DRCH region can be allocated to the allocation target mobile terminal, the DRCH allocation determination unit 12 determines to allocate the radio resource in the DRCH region to the allocation target mobile terminal, and assigns the allocated radio resource information to the radio resource mapping unit 20. To notify. When the allocation is impossible, the DRCH allocation determination unit 12 outputs the transmission radio resource amount information in the entire band of the allocation target mobile terminal to the radio resource allocation determination unit 13.

  The radio resource allocation determination unit 13 determines whether radio resources in the BRCH region can be allocated to the allocation target mobile terminal. Specifically, it is determined whether the required radio resource amount in all bands can be allocated to the BRCH region. However, the determination target is a BRCH region other than the BRCH region of the best subband. Here, for example, the radio resource allocation determination unit 13 determines that the radio resource can be allocated to the allocation target mobile terminal when there is sufficient radio resource vacancy for the necessary radio resource amount in the BRCH region. If there is no, it is determined that it cannot be assigned. If it can be allocated, the radio resource allocation determination unit 13 determines to allocate the radio resource in the BRCH region to the allocation target mobile terminal, and notifies the radio resource mapping unit 20 of the allocated radio resource information.

  In addition, what is necessary is just to determine where the radio | wireless resource to allocate is arrange | positioned according to arbitrary rules. For example, when it is determined that radio resources in the BRCH region are allocated, they may be arranged in order from the end of the BRCH region, may be distributed according to a predetermined rule, or may be randomly arranged. However, if it is determined that radio resources of the best subband are allocated, radio resources other than the best subband must not be allocated. Further, when it is determined that radio resources in the DRCH region are allocated, for example, they may be distributed according to a predetermined rule, or may be randomly arranged.

FIG. 2 is a flowchart illustrating an example of a processing flow in the wireless device 1 of the present embodiment.
First, the wireless device 1 selects a mobile terminal with the highest priority based on the priority information of each mobile terminal (step S1). Next, the wireless device 1 determines in the optimum subband allocation determination unit 11 whether or not the radio resource in the BRCH region of the best subband can be allocated to the selected mobile terminal (step S2). If radio resources in the BRCH region of the best subband can be allocated, the radio apparatus 1 allocates radio resources in the corresponding region to the mobile terminal (step S3).

  When radio resources in the BRCH region of the best subband cannot be allocated, the radio apparatus 1 determines in the DRCH allocation determination unit 12 whether or not radio resources in the DRCH region can be allocated to the mobile terminal (step S4). . When the radio resource in the DRCH area can be allocated, the radio apparatus 1 allocates the radio resource in the corresponding area to the mobile terminal (step S5). If radio resources in the DRCH area cannot be allocated, the radio apparatus 1 allocates radio resources in the BRCH area other than the best subband to the mobile terminal (step S6).

  Next, the radio apparatus 1 calculates the total amount of radio resources allocated so far (total radio resource allocation amount) (step S7). Here, the radio apparatus 1 manages how much radio resource amount is used for which mobile terminal. Next, the radio apparatus 1 determines whether or not the calculated total radio resource allocation amount is smaller than the total radio resource allocation amount (step S8). Here, the total radio resource allocation amount is a total amount of radio resources included in a data channel that can be used by a mobile terminal for communication. If the number is low (step S8: Yes), the mobile terminal having the next highest priority is selected (step S9), and the above steps S1 to S8 are repeated. Otherwise (step S8: No), the allocation process is terminated. This is to determine that all radio resources have been allocated.

  Note that the total radio resource allocation calculation (steps S7 and S8) may be performed before the radio resource allocation (step S2). In this case, when the total radio resource allocation amount becomes larger than the total radio resource allocation amount, the radio resource is allocated within the allocatable range, and the allocation ends.

  Thus, according to the present embodiment, the radio resource allocation device 10 selects radio resources in the order of the BRCH region of the subband, the DRCH region, and the BRCH region of the subband that is not the best, from which the best characteristics are obtained. Therefore, a mobile terminal with a high priority can use an optimal radio resource. This makes it possible to improve communication quality and increase system capacity.

Next explained is a wireless device 1 according to the second embodiment of the invention.
In the radio resource allocation determination unit 13 in the first embodiment, radio resources in the BRCH region of the subband a other than the best subband for a certain mobile terminal A may be allocated to the mobile terminal A. However, for other mobile terminals B, the subband a may be the best subband. In this case, since the subband a is already assigned to the mobile terminal A, the mobile terminal B cannot be used. For this reason, the subject that radio | wireless resources are not fully utilized remains.
Therefore, in the present embodiment, when the total radio resource allocation amount is smaller than the total radio resource allocation amount, the radio resource allocation determination unit 13 only secures radio resources, and allocates resource information to the radio resource mapping unit 20. Do not notify. The securing of the radio resource performed here is only securing the resource amount, and is not specified until the arrangement. When the total radio resource allocation amount is equal to or greater than the total radio resource allocation amount, the radio resource allocation determination unit 13 determines the allocation of the allocated radio resource amount in order from the mobile terminal with the highest priority, The allocated resource information is notified to the radio resource mapping unit 20.
Since other configurations are the same as those of the first embodiment, description thereof is omitted.

FIG. 3 is a flowchart illustrating an example of a processing flow in the wireless device 1 of the present embodiment.
First, the wireless device 1 selects a mobile terminal with the highest priority based on the priority information of each mobile terminal (step S11). Next, it is determined whether radio resources in the BRCH region of the best subband can be assigned to the selected mobile terminal (step S12). If radio resources in the BRCH region of the best subband can be allocated, the radio apparatus 1 allocates radio resources in the corresponding region to the mobile terminal (step S13).

  When radio resources in the BRCH region of the best subband cannot be allocated, the radio apparatus 1 determines in the DRCH allocation determination unit 12 whether or not radio resources in the DRCH region can be allocated to the mobile terminal (step S14). . When the radio resource in the DRCH area can be allocated, the radio apparatus 1 allocates the radio resource in the corresponding area to the mobile terminal (step S15). If radio resources in the DRCH area cannot be allocated, the radio apparatus 1 reserves radio resources in the BRCH area other than the best subband for the mobile terminal (step S16). Here, only the resource amount is secured, and the arrangement is not specified.

  Next, the radio apparatus 1 calculates the total radio resource allocation amount (step S17), and determines whether or not the calculated total radio resource allocation amount is smaller than the total radio resource allocation amount (step S18). When the number is low (step S18: Yes), the mobile terminal with the next highest priority is selected (step S19), and the processes from step S12 to S18 are repeated. Otherwise (step S18: No), the allocation of the secured radio resource amount is performed in order from the mobile terminal with the highest priority (step S20), and the allocation ends.

  The total radio resource allocation amount is calculated by adding the radio resource amount allocated in steps S13 and S15 and the radio resource amount secured in step S16 to the total radio resource allocation amount so far. Here, the radio apparatus 1 manages how much radio resource amount is used for which mobile terminal.

  The total radio resource allocation calculation (steps S17 and S18) may be performed before the radio resource allocation (step S12). In this case, when the total radio resource allocation amount becomes larger than the total radio resource allocation amount, the radio resource is allocated within the allocatable range, and the allocation ends.

  As described above, according to the present embodiment, when radio resources are allocated in the BRCH region, the radio device 1 reserves radio resources for a required amount in advance, and finally from a mobile terminal with a high priority. Since superior radio resources are allocated, better radio resources are allocated to mobile terminals with higher priority. This makes it possible to improve communication quality and increase system capacity.

Further, a program for realizing the function of the wireless device 1 shown in FIG. 1 is recorded on a computer-readable recording medium, and the program recorded on the recording medium is read into a computer system and executed, thereby performing wireless communication. Resource allocation processing may be performed. Here, the “computer system” may include an OS and hardware such as peripheral devices.
Further, the “computer system” includes a homepage providing environment (or display environment) if a WWW system is used.
The “computer-readable recording medium” means a flexible disk, a magneto-optical disk, a ROM, a writable nonvolatile memory such as a flash memory, a portable medium such as a CD-ROM, a hard disk built in a computer system, etc. This is a storage device.

Further, the “computer-readable recording medium” means a volatile memory (for example, DRAM (Dynamic DRAM) in a computer system that becomes a server or a client when a program is transmitted through a network such as the Internet or a communication line such as a telephone line. Random Access Memory)), etc., which hold programs for a certain period of time.
The program may be transmitted from a computer system storing the program in a storage device or the like to another computer system via a transmission medium or by a transmission wave in the transmission medium. Here, the “transmission medium” for transmitting the program refers to a medium having a function of transmitting information, such as a network (communication network) such as the Internet or a communication line (communication line) such as a telephone line.
The program may be for realizing a part of the functions described above. Furthermore, what can implement | achieve the function mentioned above in combination with the program already recorded on the computer system, and what is called a difference file (difference program) may be sufficient.

As described above, the embodiment of the present invention has been described in detail with reference to the drawings. However, the specific configuration is not limited to the above, and various design changes and the like can be made without departing from the scope of the present invention. It is possible to
In the present embodiment, BRCH is taken as an example of block allocation for the radio resource allocation method, but a method other than BRCH may be used. Also, regarding the radio resource allocation method, DRCH is exemplified as distributed allocation, but a method other than DRCH may be used.

It is a block diagram which shows the structure of the radio | wireless apparatus by this invention. 6 is a flowchart illustrating an example of a processing flow in the wireless device according to the first embodiment. 6 is a flowchart illustrating an example of a processing flow in a wireless device according to a second embodiment. It is the schematic which shows the conventional radio | wireless resource arrangement | positioning method.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Radio | wireless apparatus 10 ... Radio | wireless resource allocation apparatus 11 ... Optimal subband allocation determination part 12 ... DRCH allocation determination part 13 ... Radio | wireless resource allocation determination part 20 ... Radio | wireless resource mapping part

Claims (7)

A radio resource allocation device that determines radio resources to be allocated to a mobile terminal,
An optimal radio resource allocation determination unit that determines whether or not to allocate a radio resource in a block allocation region of a frequency that provides the best characteristics to a mobile terminal selected as an allocation target ;
By the optimum radio resource allocation determination portion, wherein when it is determined not to assign the radio resource block allocation region, distributed allocation decision determines whether to allocate the radio resources of the distributed allocation region to the mobile terminal to the mobile terminal And
By the distributed allocation determination unit, wherein the mobile terminal if it is determined not to assign the radio resources of the distributed allocation region, whether allocating a radio resource block allocation region other than the frequency that best properties are obtained in the mobile terminal A radio resource allocation determination unit for determining whether or not
A radio resource allocation device comprising: A radio resource allocation device that determines radio resources to be allocated to a mobile terminal,
An optimal radio resource allocation determination unit that determines whether or not to allocate a radio resource in a block allocation region of a frequency that provides the best characteristics to a mobile terminal selected as an allocation target ;
By the optimum radio resource allocation determination portion, wherein when it is determined not to assign the radio resource block allocation region, distributed allocation decision determines whether to allocate the radio resources of the distributed allocation region to the mobile terminal to the mobile terminal And
When it is determined by the distributed allocation determination unit that the radio resources of the distributed allocation area are not allocated to the mobile terminal, the radio resources of the block allocation area other than the frequency that can obtain the best characteristics are wirelessly specified. A radio resource allocation determination unit for securing a resource amount ;
With
The radio resource allocation determination unit includes the amount of radio resources allocated by the determination of the optimal radio resource allocation determination unit, the amount of radio resources allocated by the determination of the distributed allocation determination unit, and the radio secured by the radio resource allocation determination unit Priority is given to the allocation of the reserved radio resource amount when the total resource amount is not less than the total radio resource allocation amount that is the total amount of radio resources of the data channel that the mobile terminal can use for communication. A radio resource allocating device, wherein the radio resource allocating device is determined in descending order of mobile terminals. The radio resource allocation device according to claim 1 or 2,
A radio resource mapping unit that allocates the radio resource determined by the radio resource allocation device to each mobile terminal;
A wireless device comprising: A radio resource allocation method for determining radio resources to be allocated to a mobile terminal,
An optimal radio resource allocation determination step for determining whether or not to allocate a radio resource in a block allocation region having a frequency that provides the best characteristics to a mobile terminal selected as an allocation target ;
When it is determined by the optimal radio resource allocation determination step that the mobile terminal is not allocated to the block allocation area, a distributed allocation determination step of determining whether to allocate radio resources of the distributed allocation area to the mobile terminal ;
By the distributed allocation determining step, wherein the mobile terminal if it is determined not to assign the radio resources of the distributed allocation region, whether allocating a radio resource block allocation region other than the frequency that best properties are obtained in the mobile terminal A radio resource allocation determination step for determining whether or not
A radio resource allocating method comprising: A radio resource allocation method for determining radio resources to be allocated to a mobile terminal,
An optimal radio resource allocation determination step for determining whether or not to allocate a radio resource in a block allocation region having a frequency that provides the best characteristics to a mobile terminal selected as an allocation target ;
When it is determined by the optimal radio resource allocation determination step that the mobile terminal is not allocated to the block allocation area, a distributed allocation determination step of determining whether to allocate radio resources of the distributed allocation area to the mobile terminal ;
If it is determined in the distributed allocation determination step that the radio resources of the distributed allocation area are not allocated to the mobile terminal, the radio resources of the block allocation area other than the frequency that can obtain the best characteristics are wirelessly specified. A radio resource allocation securing step for securing a resource amount ;
The sum of the amount of radio resources allocated by the determination of the optimal radio resource allocation determination step, the amount of radio resources allocated by the determination of the distributed allocation determination step, and the amount of radio resources allocated by the radio resource allocation securing step is a mobile terminal. Determines that the allocation of the reserved radio resource amount is assigned in order from the mobile terminal with the highest priority when it is not less than the total radio resource allocation amount that is the total amount of radio resources of the data channel that can be used for communication. A radio resource allocation determination step;
A radio resource allocating method comprising: A computer program for determining radio resources to be allocated to a mobile terminal,
An optimal radio resource allocation determination step for determining whether or not to allocate a radio resource in a block allocation region having a frequency that provides the best characteristics to a mobile terminal selected as an allocation target ;
When it is determined by the optimal radio resource allocation determination step that the mobile terminal is not allocated to the block allocation area, a distributed allocation determination step of determining whether to allocate radio resources of the distributed allocation area to the mobile terminal ;
By the distributed allocation determining step, wherein the mobile terminal if it is determined not to assign the radio resources of the distributed allocation region, whether allocating a radio resource block allocation region other than the frequency that best properties are obtained in the mobile terminal A radio resource allocation determination step for determining whether or not
A computer program for causing a computer to execute. A computer program for determining radio resources to be allocated to a mobile terminal,
An optimal radio resource allocation determination step for determining whether or not to allocate a radio resource in a block allocation region having a frequency that provides the best characteristics to a mobile terminal selected as an allocation target ;
When it is determined by the optimal radio resource allocation determination step that the mobile terminal is not allocated to the block allocation area, a distributed allocation determination step of determining whether to allocate radio resources of the distributed allocation area to the mobile terminal ;
If it is determined in the distributed allocation determination step that the radio resources of the distributed allocation area are not allocated to the mobile terminal, the radio resources of the block allocation area other than the frequency that can obtain the best characteristics are wirelessly specified. A radio resource allocation securing step for securing a resource amount ;
The sum of the amount of radio resources allocated by the determination of the optimal radio resource allocation determination step, the amount of radio resources allocated by the determination of the distributed allocation determination step, and the amount of radio resources allocated by the radio resource allocation securing step is a mobile terminal. Determines that the allocation of the reserved radio resource amount is assigned in order from the mobile terminal with the highest priority when it is not less than the total radio resource allocation amount that is the total amount of radio resources of the data channel that can be used for communication. A radio resource allocation determination step;
A computer program for causing a computer to execute.

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