JP4223303B2 - Wireless base station - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a radio base station constituting a mobile communication system, and more particularly to a radio base station that allocates a radio channel by efficiently using radio resources.
[0002]
[Prior art]
Hereinafter, a conventional radio base station (see Patent Document 1) will be described. In the conventional radio base station, the radio resource amount is determined by the communication service type such as voice, packet, unrestricted digital, etc. (first prior art). In addition, as a radio resource selection method in a conventional radio base station, for example, a card concentration method in which radio resources are selected from the same baseband card until there is no free radio resource in the same baseband card, and a free radio in the same baseband card. There is a card distribution system in which resources remain, but when a search for the same number of radio resources as the threshold is completed, there is a card distribution method in which radio resources are selected from another baseband card (second prior art). Further, in the conventional radio base station, when the radio resource becomes an obstacle, for example, the radio resource is moved (third prior art).
[0003]
[Patent Document 1]
JP, 2002-95039, A FIG.
[0004]
[Problems to be solved by the invention]
However, the above-described conventional radio base station has the following problems.
[0005]
For example, in the first prior art, since the radio resource amount is determined by the communication service type, the radio base station needs to be notified of the communication service type from the host device (RNC) at the time of call setup. For this reason, there is a problem that the amount of radio resources cannot be determined in the case of a call setup procedure in which notification of communication service types is not performed, notification of communication service types is delayed from the timing at which radio resources should be secured, etc. It was.
[0006]
In the second prior art, the card concentration method and the card distribution method are selected according to the radio resource allocation threshold. However, with this configuration, even when a card distribution method is desired, resources are concentrated on the same baseband card until the threshold is reached, and the threshold is reached for all baseband cards. After that, resources are also concentrated on the same baseband card. For this reason, there is a problem in that it is not possible to obtain a risk distribution against a failure and an effect of preventing the same card from being consumed, which are advantages of the card distribution method.
[0007]
Further, in the third prior art, since the radio resource is moved when the radio resource becomes faulty, the radio resource cannot be rearranged unless the fault occurs, and the radio resource in the radio base station cannot be relocated. There is a problem that it cannot be used efficiently. For example, a radio base station that cannot perform resource allocation across a plurality of radio channel signal processing units is a case where one communication service uses a plurality of radio resources, and a radio channel signal processing unit A and a radio channel signal When the amount of free radio resources of the processing unit B is “2”, the amount of radio resources cannot be processed across multiple radio channel signal processing units even though there are a total of “4” free radio resources. However, there is a problem that resources cannot be allocated to the communication service of “4”.
[0008]
The present invention has been made in view of the above, and an object thereof is to obtain a radio base station that can efficiently use radio resources.
[0009]
[Means for Solving the Problems]
In order to solve the above-described problems and achieve the object, the radio base station according to the present invention uses a single or a plurality of radio channels to specify a predetermined value for each mobile station accommodated by itself. A wireless base station that provides a communication service, and determines a single or a plurality of radio channel signal processing means having a predetermined amount of radio resources and a radio resource amount necessary to allocate a radio channel, and requested When the radio resource amount can be secured, the radio channel signal processing means capable of accommodating the radio resource amount is selected by a prescribed process, while the radio resource amount requested by moving the radio channel in use is determined. When it is determined that it is possible to secure, radio resource management means for instructing movement of the radio channel, and according to an instruction from the radio resource management means, Characterized in that it comprises a radio channel control means for controlling the movement process of the assignment process and the radio channel of the line channel.
[0010]
According to the present invention, the above-described radio resource management means performs “determination processing of radio resource amount for allocating radio channel”, “selection processing of radio channel signal processing means capable of accommodating radio resource amount”, “ By executing “processing related to movement”, radio resources are efficiently used.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of a radio base station according to the present invention will be described below in detail with reference to the drawings. Note that the present invention is not limited to the embodiments.
[0012]
Embodiment 1 FIG.
FIG. 1 is a diagram showing a configuration relating to a radio channel assignment process of a radio base station according to the present invention. In FIG. 1, a radio base station 1 arranges a plurality of radio channel signal processing units 2 (2-1, 2-2, 2-3,..., 2-n), and each radio channel signal processing unit 2 Each has a plurality of radio resources 3 (3-1, 3-2, 3-3,..., 3-m).
[0013]
Further, the radio base station 1 includes a radio resource management unit 4 that manages the state of these radio resources 3, and a radio channel that controls radio channel allocation between the radio resource management unit 4 and the radio channel signal processing unit 2. The control unit 8 is arranged. In the radio resource management unit 4, the resource amount determination unit 5 determines the radio resource amount necessary for radio channel allocation, and then the resource selection unit 6 selects the radio resource 3 for radio channel allocation. As a result, the radio channel control unit 8 controls the radio channel signal processing unit 2 including the radio resource 3 selected by the resource selection unit 6 to perform radio channel setting and release.
[0014]
The resource amount determination unit 5 includes a resource amount search unit 5a, a resource amount calculation unit 5b, and a resource amount holding unit 5c, and provides different radio resource amount determination methods. When determining the radio resource amount, the radio resource amount is determined by any one method.
[0015]
Further, the resource selection unit 6 includes a minimum value selection unit 6a, a maximum value selection unit 6b, and a high-speed communication selection unit 6c, and provides radio resource selection methods having different purposes. In radio resource selection, a radio resource is selected by any one of these methods or a combination thereof.
[0016]
In addition, the radio resource management unit 4 includes a resource movement determination unit 7, and determines the necessity of resource movement and the resource movement method for the radio resource being used in the communication service.
[0017]
Here, the operation when the above configuration is applied to a W-CDMA (Wideband-Code Division Multiple Access) wireless base station will be described as an example.
[0018]
When the radio base station 1 secures radio resources for a new radio channel in order to provide a communication service, the radio resource management unit 4 makes an inquiry to the internal resource amount determination unit 5.
[0019]
In the resource amount determination unit 5, first, the radio resource amount is determined by the resource amount search unit 5a. The resource amount search unit 5a holds a radio resource amount search table.
[0020]
FIG. 2 is a diagram illustrating an example of a radio resource amount search table. This radio resource amount search table includes three pieces of information characterizing a radio channel, that is, the radio resource amount consumed for a radio channel that cannot be simply calculated from the radio channel type, the number of radio channels, and the transmission speed of the radio channel. This is a table in which correspondence is registered in advance, and the amount of radio resources can be determined by searching the table.
[0021]
The radio channel type identifies a common channel such as PRACH or SCCPCH, a dedicated channel such as uplink DPCH or downlink DPCH, and a shared channel such as PDSCH or HS-PDSCH. The number of radio channels indicates the number of multicodes or the number of signatures, and the usage differs depending on the type of radio channel. As the transmission rate, the symbol rate per code of the radio channel is used. For example, in FIG. 2, if the dedicated channel A, the number of radio channels = 3, and the symbol rate = 240 ksps, the radio resource amount = 16 is obtained.
[0022]
As described above, since the radio resource amount can be finely defined from the information characterizing the radio channel for a radio channel that can be realized with a smaller radio resource amount than when the radio resource amount is calculated, the radio resource amount search table By registering with, it is possible to efficiently use the radio resources of the entire apparatus.
[0023]
Next, when there is no registration in the radio resource amount search table and the radio resource amount has not been determined, the resource amount determination unit 5 makes an inquiry to the resource amount calculation unit 5b. The resource amount calculation unit 5b holds a radio resource amount calculation table.
[0024]
FIG. 3 is a diagram illustrating an example of a radio resource amount calculation table. This radio resource amount calculation table is a table in which the transmission rate per one radio channel code corresponding to the minimum radio resource unit is determined in advance. In FIG. 3, as an example, the radio resource amount = 1 is used for each symbol rate: 60 ksps for the uplink radio channel, and the radio resource amount = 1 is used for each symbol rate: 30 ksps for the downlink radio channel. Therefore, for example, if the uplink radio channel is 120 ksps, use of radio resource amount = 2 is easily obtained by calculation. Further, in the case of multicode, the radio resource amount can be obtained by multiplying the number of multicodes. Depending on the channel type, the number of signatures is used instead of the number of multicodes.
[0025]
In this way, using the radio resource amount calculation table, the radio resource amount used in the radio channel can be calculated at high speed by simple calculation, so the processing load is significantly larger than when performing radio resource amount determination by table search. Can be reduced.
[0026]
Then, the radio resource amount determined by any of the above methods is held in the resource amount holding unit 5c. The resource amount holding unit 5c holds a radio resource amount corresponding to a channel number for identifying a radio channel. FIG. 4 is a diagram illustrating a correspondence relationship between channel numbers for identifying radio channels and radio resource amounts. Thereafter, when it is desired to acquire a radio resource amount for a specific radio channel in communication, an inquiry is made to the resource amount holding unit 5c. As a result, there is no need to perform another search or calculation, so that the processing related to determining the radio resource amount can be greatly reduced.
[0027]
As described above, when the radio resource amount of the radio channel is determined, the radio resource management unit 4 next inquires of the resource selection unit 6 about radio resources to which radio channels should be allocated. Then, when there is a radio resource to be allocated, the resource selection unit 6 selects a radio resource by the following process.
[0028]
Note that the resource selection unit 6 determines in advance which of the minimum value selection unit 6a and the maximum value selection unit 6b is used as a radio resource selection method. Furthermore, in order to perform radio resource selection using the selection unit 6c for high-speed communication, a radio channel that uses a radio resource amount greater than a predetermined value is defined as high-speed communication, and other radio channels are defined as low-speed communication. Keep it. For high-speed communication, priority is given to selection by the selection unit 6c for high-speed communication, and if it cannot be selected here, selection is performed by the minimum value selection unit 6a or the maximum value selection unit 6b. On the other hand, for low-speed communication, the selection by the minimum value selection unit 6a or the maximum value selection unit 6b is prioritized. If the selection cannot be made here, the selection is performed by the high-speed communication selection unit 6c.
[0029]
For example, when a radio resource is selected by the minimum value selection unit 6a, the selection is performed using the radio resource management table (b). FIG. 5 is a diagram showing radio resource management tables (a) and (b). In this radio resource management table, the free radio resource amount of the radio channel signal processing unit 2 is shown, and the radio resource management table (a) is arranged in order of increasing selection priority in ascending order of the free radio resource amount. Is a radio resource management table (b). When there are a plurality of radio channel signal processing units 2 having the same free radio resource amount, the selection priority among them may be set in the order of reaching the free radio resource amount, for example.
[0030]
When the minimum value selection unit 6a performs this rearrangement, the resource selection unit 6 performs a search in ascending order of the free radio resource amount and selects the radio channel signal processing unit 2 that can accommodate the requested radio resource amount. To do. Then, after the radio channel signal processing unit 2 is selected, the minimum value selection unit 6a decreases the free radio resource amount of the radio channel signal processing unit 2 by the allocated amount, and again the free radio resource amount is small. Sort in order.
[0031]
With this selection method, the radio channel signal processing unit 2 with a small amount of available radio resources is intensively selected, so that even when the load is high, the radio base station as a whole can effectively use radio resources. That is, radio resources are not distributed to each radio channel signal processing unit 2, and resources are not allocated to radio channels that use a lot of radio resources (a state where there is no radio channel signal processing unit 2 to which resources are allocated) ) Can be prevented.
[0032]
When the radio resource is selected by the maximum value selection unit 6b, the radio resource management table (c) is used for selection. FIG. 6 is a diagram showing radio resource management tables (a) and (c). In this radio resource management table, the radio resource management table (c) is a table in which the radio resource management table (a) is arranged so that the selection priority becomes higher in order of increasing free radio resource amount.
[0033]
When the maximum value selection unit 6b performs this rearrangement, the resource selection unit 6 performs a search in order from the largest available radio resource amount and selects the radio channel signal processing unit 2 that can accommodate the requested radio resource amount. To do. Then, in the maximum value selection unit 6b, after the radio channel signal processing unit 2 is selected, the free radio resource amount of the radio channel signal processing unit 2 is decreased by the allocated amount, and again the free radio resource amount is large. Sort in order.
[0034]
According to this selection method, radio resources are equally used for each radio channel signal processing unit 2, so that it is possible to realize risk distribution against a failure of the radio channel signal processing unit 2.
[0035]
When the selection is performed by the minimum value selection unit 6a, the amount of radio resources used in the radio channel already assigned to the radio channel signal processing unit 2 increases during communication (changes the radio transmission rate). In other words, a “free radio resource threshold value” is defined so that free radio resources can be left. FIG. 7 is a diagram showing radio resource management tables (b) and (d). Here, the available radio resource threshold value is given as a predetermined value, and when the minimum value selection unit 6a selects the radio channel signal processing unit 2, the amount of available radio resource is less than the threshold value. The channel signal processing unit 2 operates to lower the selection priority. For example, when the free radio resource threshold value = 4, the selection priority of the radio channel signal processing units 2-1 and 2-5 shown in the radio resource management table (b) is lowered, and the radio resource management table ( Rearranged as in d).
[0036]
As a result, even if the wireless transmission rate is changed during communication, the wireless resource can be selected within the same wireless channel signal processing unit without performing wireless resource movement across the wireless channel signal processing unit. The load can be reduced.
[0037]
Further, when the radio resource is selected by the high-speed communication selection unit 6c, the following operation is performed in order to preferentially use the radio resource in the high-speed communication in accordance with a predetermined “high-speed communication radio resource securing amount”. I do. Here, as an example, description will be made assuming that the radio resource securing amount for high-speed communication = 32.
[0038]
FIG. 8 is a diagram showing a radio resource management table (e). The radio resource management table (e) shows a case where the radio resource for high speed communication is applied to the selection method shown in FIG. 7, but not limited to this, for example, the selection method shown in FIG. 5 and FIG. Alternatively, high-speed communication radio resources may be applied. However, in order to simplify the explanation, the free radio resource amount of the radio channel signal processing units 2-2 and 2-4 is changed to 32.
[0039]
For example, as shown in FIG. 8, the high-speed communication selection unit 6c extracts table elements corresponding to the radio channel signal processing unit 2-2 that can secure radio resources for high-speed communication, and this radio channel signal processing unit 2- The table (e) is created so that 2 is not preferentially selected by the minimum value selection unit 6a and the maximum value selection unit 6b.
[0040]
Thereby, even in a state where the radio resource allocation load for a specific radio base station is high, call loss in high-speed communication can be suppressed low.
[0041]
Next, the radio resource allocation operation when performing high-speed communication according to the selection priority order of the radio resource management table (e) shown in FIG. 8 will be described. Here, as an example, it is assumed that a radio channel with radio resource amount ≧ 16 is defined as “high-speed communication” and radio resources are allocated to radio channels with radio resource amount = 16. Further, the radio resource securing amount for high-speed communication = 32 is as described above. Further, in FIG. 9, the radio resource management table (f) shows a state after radio resources are allocated in correspondence with high-speed communication.
[0042]
For example, in the state of the radio resource management table (e) shown in FIG. 9, when allocating radio resources for high-speed communication with radio resource amount = 16, the high-speed communication selection unit 6c uses radio channels as radio resource allocation targets. The signal processing unit 2-2 is selected. Then, after the radio resource allocation is successful, the free radio resource amount of the radio channel signal processing unit 2-2 is decreased by the allocated amount, and the free radio resource amount is set to 16. At this time, since the radio resource securing amount for high speed communication is defined as 32, the radio channel signal processing unit 2-2 cannot secure radio resources for high speed communication thereafter. Therefore, the high-speed communication selection unit 6c changes this table element to an appropriate position as shown in the radio resource management table (f) of FIG. At the same time, another radio channel signal processing unit 2 that can secure radio resources for high-speed communication is searched, for example, table elements corresponding to the radio channel signal processing unit 2-4 (= 32) are extracted, and radio resources for high-speed communication are extracted. To secure as.
[0043]
In this way, even when the reserved radio resource for high-speed communication is used, the radio communication resource for high-speed communication is always re-allocated by the high-speed communication selection unit 6c, so that the call loss for high-speed communication is reduced. Can be suppressed.
[0044]
With the above operation, when the determination of the radio resource amount and the selection of the radio resource are completed, the radio resource management unit 4 requests the radio channel control unit 8 to perform radio resource allocation control on the radio channel signal processing unit 2. To do. Finally, when a radio channel is set in the radio channel signal processing unit 2, a series of processes related to radio channel assignment is completed.
[0045]
Next, an operation for moving a wireless channel during communication will be described. FIG. 10 is a diagram illustrating an example of an operation of moving a wireless channel during communication. In addition, although operation | movement when moving a radio channel from the radio channel signal processing part 2-1 to 2-3 here is demonstrated as an example, it is not restricted to this, Between arbitrary radio channel signal processing parts 2, or 1 The present invention can also be applied to a case where a radio channel is moved in one radio channel signal processing unit 2. Further, the state of the radio resource management table (g) in FIG. 10 shows a state where all the free resource amounts of the respective radio channel signal processing units 2 are 3 or less.
[0046]
For example, when allocating radio resources of the radio channel signal processing unit 2-1 to radio channels, radio resources cannot be allocated if there is a radio channel allocation request of radio resource amount = 4 in the state of table (g). . Therefore, here, for example, the vacant radio resource of the radio channel signal processing unit 2-1 is set to “4” so as to accommodate the radio channel of the radio resource amount = 4.
[0047]
When the resource movement determination unit 7 refers to the radio resource management table (g) and determines that the requested radio resource amount can be secured, the resource movement determination unit 7 switches the radio resource to the resource selection unit 6 (radio channel). Move). In the example of FIG. 10, among the wireless channels that are communicating with the wireless channel signal processing unit 2-1, the wireless channel with the wireless resource amount = 1 is set as the movement target.
[0048]
The resource selection unit 6 confirms that radio resources corresponding to the radio channel to be moved can be secured in the radio channel signal processing unit 2-3, and then the radio channel control unit 8 receives the radio resource from the radio resource management unit 4. In response to the request, radio resources of the radio channel signal processing unit 2-3 are set (reserved). At the same time, the radio resource of the radio channel signal processing unit 2-1 is deleted (opened). At this time, setting and deletion in the radio channel signal processing units 2-1 and 2-3 are performed at the same timing. For example, in the case of a W-CDMA wireless base station, transmission / reception timing of a transport block to be transferred is applied. Thereby, a radio | wireless resource can be switched simultaneously and a radio channel can be moved without interrupting communication. The radio channel controller 8 instructs the transmission / reception timing.
[0049]
When the deletion and setting by the radio channel signal processing units 2-1 and 2-3 are completed, the radio channel control unit 8 notifies the radio resource management unit 4 to that effect. As a result of this processing, the free resource amount of the radio channel signal processing unit 2-1 set in the table of the resource selection unit 6 becomes “4”. That is, thereafter, a radio channel with radio resource amount = 4 can be allocated.
[0050]
Thereby, since the radio resources of the entire radio base station can be used efficiently, the possibility of failure in new radio resource allocation can be reduced.
[0051]
In this embodiment, the radio channel is moved in order to allocate the radio resource. However, the present invention is not limited to this, and it is necessary to make the radio resource free for reasons such as maintenance of the radio channel signal processing unit 2. It is also applicable to. In addition, the wireless channel is moved even when a failure occurs in the wireless channel signal processing unit 2, but in this case, it is not necessary to simultaneously switch (delete and set) the wireless resources, and the failed wireless channel signal The radio resource used in the processing unit 2 may be reassigned to another radio channel signal processing unit 2. This allocation is performed in the same manner as the allocation of new radio resources.
[0052]
In the present embodiment, the resource amount determination unit 5 includes both the resource amount search unit 5a and the resource amount calculation unit 5b. However, the present invention is not limited to this. For example, the resource amount search unit 5a and the resource amount It is good also as mounting at least any one of the calculation parts 5b. Moreover, it is good also as mounting combining either one of the said structures and the resource amount holding | maintenance part 5c. In the present embodiment, the resource amount determination unit 5 is provided with one resource amount search unit 5a and one resource amount calculation unit 5b. However, these configurations are provided for each radio channel type. Also good.
[0053]
In this embodiment, the resource selection unit 6 includes both the minimum value selection unit 6a and the maximum value selection unit 6b. However, the present invention is not limited to this. For example, the minimum value selection unit 6a and the maximum value selection At least one of the parts 6b may be mounted. Moreover, it is good also as mounting combining either one said structure and the selection part 6c for high speed communication. In the present embodiment, the resource selection unit 6 is provided with the minimum value selection unit 6a and the maximum value selection unit 6b one by one. However, these configurations may be provided for each radio channel type. Good.
[0054]
In addition, the resource selection unit 6 does not define a threshold for the free radio resource amount as a threshold for radio resource allocation, but defines, for example, an in-use or unavailable radio resource amount as the threshold. Also good. In this case, as the minimum value selection unit 6a, the selection priority of the radio channel signal processing unit 2 exceeding the threshold value is lowered.
[0055]
In addition, the radio channel assignment process of the present embodiment is not limited to the W-CDMA radio base station, but is applied to, for example, a radio base station using a TDMA (Time Division Multiple Access) system or other multiple access systems. it can. For example, when the speed of the radio transmission path is constant and the transmission speed of each radio channel is expressed by the number of time-division slots as in the TDMA method, the transmission speed for determining the radio resource amount is set to the number of slots. Replace it. In this case, for the movement timing of the radio resource, the timing at which transmission / reception is not performed on the corresponding channel is applied.
[0056]
【The invention's effect】
As described above, according to the present invention, the radio resource management unit performs the above-described radio resource amount determination process for allocating a radio channel, selection process of a radio channel signal processing unit capable of accommodating the radio resource amount, and radio Processing related to channel movement is to be executed. Thereby, there exists an effect that a radio | wireless resource can be utilized efficiently.
[Brief description of the drawings]
FIG. 1 is a diagram showing a configuration relating to a radio channel assignment process of a radio base station according to the present invention.
FIG. 2 is a diagram illustrating an example of a radio resource amount search table.
FIG. 3 is a diagram illustrating an example of a radio resource amount calculation table.
FIG. 4 is a diagram illustrating a correspondence relationship between a channel number for identifying a radio channel and a radio resource amount.
FIG. 5 is a diagram illustrating an example of a radio resource management table.
FIG. 6 is a diagram illustrating an example of a radio resource management table.
FIG. 7 is a diagram illustrating an example of a radio resource management table.
FIG. 8 is a diagram illustrating an example of a radio resource management table.
FIG. 9 is a diagram illustrating an example of a radio resource management table.
FIG. 10 is a diagram illustrating an example of an operation of moving through a wireless channel during communication.
[Explanation of symbols]
1 radio base station, 2, 2-1, 2-2, 2-3, 2-4, 2-5, 2-n radio channel signal processing unit, 3, 3-1, 3-2, 3-3 3-m radio resource, 4 radio resource management unit, 5 resource amount determination unit, 5a resource amount search unit, 5b resource amount calculation unit, 5c resource amount holding unit, 6 resource selection unit, 6a minimum value selection unit, 6b maximum value Selection unit, 6c selection unit for high-speed communication, 7 resource movement determination unit, 8 radio channel control unit.

Claims (7)

In a radio base station that provides a predetermined communication service to each mobile station accommodated by itself using a single or a plurality of radio channels,
Single or multiple radio channel signal processing means having a predetermined amount of radio resources;
When the amount of radio resources necessary to allocate a radio channel is determined and the requested radio resource amount can be secured, the radio channel signal processing means capable of accommodating the radio resource amount is selected by a prescribed process, Radio resource management means for instructing movement of the radio channel when it is determined that the requested radio resource amount can be secured by moving the radio channel in use;
Radio channel control means for controlling radio channel assignment processing and radio channel movement processing in accordance with instructions from the radio resource management means;
With
The radio resource management means includes
A combination of the wireless channel type, the number of wireless channels, and the transmission speed of each wireless channel applied to the communication service and the amount of wireless resources consumed in the combination are registered in advance, and the registration contents are searched. To determine the amount of radio resources to be allocated to the communication service ,
As the specified process, a process of preferentially selecting a radio channel signal processing means with the smallest available free radio resource amount or a process of preferentially selecting a radio channel signal processing means with the largest available free radio resource amount A radio base station having a configuration capable of selecting any one of the processes to be selected . The radio resource management means includes
A transmission rate corresponding to the minimum radio resource amount is defined in advance, and a radio resource amount to be allocated to the communication service is calculated using a transmission rate and the number of radio channels applied to the communication service. The radio base station according to claim 1. The radio resource management means further includes:
Define a threshold for the amount of free radio resources ,
When selecting the process of preferentially selecting the radio channel signal processing means with the smallest available free radio resource amount, the selection of the radio channel signal processing means for which the free radio resource amount is equal to or less than a threshold value lower priority, from among the radio channel signal processing means to which the available radio resource amount exceeds the threshold value, that you select the smallest wireless channel signal processing means available radio resource amount that can be used preferentially The radio base station according to claim 1 or 2 , characterized in that: The radio resource management means includes
For high-speed communication service in advance secure a certain amount of available radio resources preferentially allocating the available radio resources for high service to claim 1, 2 or 3, characterized in relative speed communication services The radio base station described. The radio resource management means further includes:
5. The radio base station according to claim 4 , wherein a free radio resource other than the radio resource for the high speed communication service is preferentially assigned to a low speed communication service other than the high speed communication service. The radio resource management means includes
The vacant radio resource for the high-speed communication service is used, and when the vacant radio resource falls below a prescribed amount necessary for the high-speed communication service, a vacant radio resource larger than the prescribed amount is dynamically secured. Item 6. The radio base station according to Item 4 or 5 . The radio resource management means includes
The radio base according to any one of claims 1 to 6 , wherein a radio channel in use can be moved between any radio channel signal processing means or within the same radio channel signal processing means. Bureau.

Images