KR20130125228A - Method for scheduling in wireless communicatoin system and apparatus thereof - Google Patents

Abstract

A wireless resource scheduling method and a wireless resource scheduling apparatus in a wireless communication system are disclosed. A wireless signal processor transmits a reference signal to a terminal and receives channel condition information measured by the reference signal from the terminal in this scheme. When the channel condition information is information measured in resource time in which the wireless signal processor of an adjacent cell transmits data, wireless resources are scheduled using the channel condition information. In conclusion, the wireless resources are scheduled using the channel condition information measured in time in which interference is generated by transmitting the data to an adjacent cell to the terminals exclusively assigning the resources in a cell boundary area. [Reference numerals] (10) Cell 1;(20) Cell 2;(450) Terminal 1;(460) Terminal 2;(AA) Frequency;(BB) Time

Description

≪ Desc / Clms Page number 1 > METHOD FOR SCHEDULING IN WIRELESS COMMUNICATION SYSTEM AND APPARATUS THEREOF FIELD OF THE INVENTION [0001]

The present invention relates to a radio resource scheduling method and apparatus therefor in a wireless communication system.

In general, resources in a wireless communication system can be classified into frequency resources and time resources, and optimal allocation of such resources is very important for improving the performance of a wireless communication system.

FIG. 1 is a diagram illustrating an example of resource allocation in an orthogonal frequency division multiplexing (OFDM) system. In detail, FIG. 1 illustrates allocation of a frequency resource and a time resource in a grid form to a user.

In such a wireless communication system, there is a need for a method of maximizing overall network performance by minimizing cell-to-cell interference and increasing resource reuse rate through common resource management between cells.

To this end, as shown in FIG. 2, a reuse method of reusing the same resource is used in an area inside a cell, and an exclusive coordination method of resources using different resources between cells in a cell boundary area. This is used.

However, when Coordinated Scheduling is performed in the cell boundary region, the channel state of the UE located in the border region is improved, and as a result, the priority of the UE is increased and more radio resources are allocated, There is a problem that the throughput of the terminals located inside is relatively lowered.

According to an aspect of the present invention, there is provided a radio communication system for performing scheduling of radio resources using channel state information measured when interference is caused by transmitting data in an adjacent cell to terminals that perform exclusive allocation of resources And to provide a radio resource scheduling method and apparatus therefor.

Scheduling method according to an aspect of the present invention,

CLAIMS 1. A method for scheduling radio resources in a wireless signal processing apparatus, each of which is included in a plurality of cells and provides wireless communication for a terminal in a cell, the method comprising: transmitting a reference signal to a terminal, Receiving channel state information from the base station; And scheduling the radio resources using the channel state information when the channel state information is information measured at a resource time at which the radio signal processing apparatus of an adjacent cell transmits data.

The scheduling may include: determining whether the channel state information is measured at a resource time at which a radio signal processor of an adjacent cell transmits data; Not using the channel state information if the channel state information is determined to be measured at a resource time when the radio signal processing apparatus of an adjacent cell does not transmit data; Determining a priority using the channel state information if the channel state information is determined to have been measured at a resource time at which data is transmitted by a radio signal processor of an adjacent cell; And scheduling radio resources according to the priority.

The method of claim 1, further comprising, between the receiving step and the scheduling step, determining whether the channel state information is information measured during exclusive allocation of resources, Performing scheduling when the information is measured while the allocation is being performed, and when the channel state information is information that is measured while the resource is not exclusively allocated, And the radio resource is scheduled using the channel state information irrespective of whether the signal processing apparatus is information measured at a resource time at which data is transmitted.

In addition, the radio resource is a time resource.

Scheduling method according to another aspect of the present invention,

A method for scheduling in a device for commonly managing a radio signal processing device included in a plurality of cells and for providing radio communication to a terminal in a cell, the method comprising: transmitting, by the device through the radio signal processing device, Receiving; And determining, based on a signal received from the terminal, terminals performing exclusive allocation of resources in a boundary area of adjacent cells; And scheduling of radio resources using the measured channel state information when the radio signal processing apparatus does not transmit data using the radio resources allocated to the mobile station during radio resource scheduling for terminals performing exclusive allocation of resources, And performing control on the wireless signal processing apparatus to perform the wireless signal processing apparatus.

The determining of the terminals may include determining whether the terminal is located in a boundary area of the adjacent cells through a signal received from the terminal; And determining that the terminal is performing resource allocation exclusively for the terminal when it is determined that the terminal is located in a cell boundary region.

The step of performing the control may include: allocating radio resources to terminals performing exclusive allocation of resources; Transmitting information of a terminal performing exclusive allocation of resources to the radio signal processor and information of a radio resource allocated to the terminal; And controlling the radio signal processor to perform scheduling of radio resources using channel state information measured when the mobile station does not transmit data using the radio resources allocated to the mobile station.

The channel state information measured when the data is not transmitted using the radio resource allocated to the mobile station is channel state information measured when the radio signal processor of the adjacent cell transmits data.

According to another aspect of the present invention, there is provided a scheduling apparatus comprising:

A digital signal processing device connected to the core system for processing a wireless digital signal; And converting the digital signal received from the digital signal processing apparatus into a digital signal and transferring the amplified digital signal to the terminal, receiving the signal transmitted from the terminal, and transmitting the signal to the digital signal processing apparatus Wherein the digital signal processing apparatus performs control to perform exclusive allocation of resources to terminals located in a border region of adjacent cells, and the wireless signal processing apparatus performs exclusive allocation of resources Scheduling a radio resource using channel state information when the channel state information received from a terminal performing the measurement is information measured at a resource time at which the radio signal processing apparatus of a cell adjacent to the cell to which the terminal belongs transmits data .

Here, the digital signal processing apparatus is characterized in that it receives a signal received from a terminal through a wireless signal processing apparatus and performs control so as to perform exclusive allocation of resources.

The digital signal processing apparatus may determine whether the terminal is located in a boundary region of adjacent cells based on a signal received from the terminal.

In addition, the radio signal processing apparatus performs scheduling of radio resources using channel state information received every resource time for a terminal that does not perform exclusive allocation of resources.

In addition, if the channel state information received from a terminal performing exclusive allocation of resources is information measured at a resource time at which the radio signal processing apparatus transmits data to the terminal, The scheduling of the radio resources is performed by using the channel state information measured at the resource time at which the radio signal processing apparatus transmits data.

The digital signal processing apparatus may further include a receiver configured to receive an uplink signal strength value from a terminal through the wireless signal processing apparatus; A determination unit determining whether each terminal is located in a cell boundary region based on the signal strength value of each terminal received by the reception unit; And a setting unit configured to allow the determination unit to identify UEs located in a cell boundary region, to perform exclusive allocation of resources to the identified UEs, and to allocate radio resources to each UE so that they do not overlap with each other; And a radio signal processing apparatus for allocating resources to a radio signal processor for providing a service for a UE set to perform exclusive allocation of resources by the setting unit, And a controller for performing control on the radio signal processor to perform scheduling of radio resources using channel state information measured at a resource time for transmitting the data.

The radio signal processing apparatus may further include: a transmitter configured to transmit a reference signal to the terminal in each resource time; A receiver configured to receive channel state information measured by a terminal receiving the reference signal; Wherein the controller determines whether the channel state information received by the receiver is a resource time at which the radio signal processor of the neighboring cell measures the resource time to transmit data, A determination unit for transmitting the channel status information when the processing apparatus is a resource time for transmitting data; A determining unit for determining a priority using channel state information transmitted from the determining unit; And a scheduler for performing scheduling of radio resources according to a priority determined by the determiner.

According to the present invention, scheduling of radio resources is performed by using channel state information measured when interference is caused by transmitting data in an adjacent cell to terminals that perform exclusive allocation of resources, It is possible to prevent the priority for the user from decreasing.

Therefore, it is possible to prevent the throughput relative to the terminals located inside the cell from being relatively lowered.

1 illustrates an example of resource allocation in an orthogonal frequency division multiplexing (OFDM) system.
2 is a diagram illustrating a concept of allocating resources through a cooperative scheme in general.
FIG. 3 illustrates a comparison of resource allocation when using a general scheduling scheme and an exclusive allocation scheme of resources in a wireless communication system.
4 is a diagram illustrating an example of allocating time resources in an exclusive allocation scheme to terminals located at a cell boundary in a wireless communication system.
FIG. 5 is a diagram illustrating a concept of resource allocation for terminals located in an inner region of a cell in a wireless communication system.
FIG. 6 is a diagram illustrating an example of channel state information measured for terminals illustrated in FIG. 4.
7 is a schematic structural diagram of a network according to an embodiment of the present invention.
8 is a diagram illustrating a concept that a mobile station transmits channel state information measured when a radio signal processing apparatus of a neighboring cell transmits data according to an embodiment of the present invention.
9 is a flowchart of a method of scheduling radio resources according to an embodiment of the present invention.
10 is a diagram illustrating an example in which radio resources are allocated according to a scheduling method of a radio resource according to an embodiment of the present invention.
11 is a block diagram of a digital signal processing apparatus according to an embodiment of the present invention.
12 is a block diagram of a wireless signal processing apparatus according to an embodiment of the present invention.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to clearly illustrate the present invention, parts not related to the description are omitted, and similar parts are denoted by like reference characters throughout the specification.

Throughout the specification, when a part is said to "include" a certain component, it means that it can further include other components, except to exclude other components unless otherwise stated. Also, the terms " part, "" module," and " module ", etc. in the specification mean a unit for processing at least one function or operation and may be implemented by hardware or software or a combination of hardware and software have.

In this specification, a terminal includes a mobile station (MS), a mobile terminal (MT), a subscriber station (SS), a portable subscriber station (PSS), a user equipment , An access terminal (UE), an access terminal (AT), and the like, and may include all or some functions of a terminal, a mobile terminal, a subscriber station, a mobile subscriber station, a user equipment,

In this specification, a base station (BS) includes an access point (AP), a radio access station (RAS), a node B, an evolved NodeB (eNodeB) A base station (BTS), a mobile multihop relay (MMR) -BS, or the like, and may perform all or a part of functions of an access point, a radio access station, a Node B, an eNodeB, a base transceiver station, .

FIG. 3 illustrates a comparison of resource allocation when using a general scheduling scheme and an exclusive allocation scheme of resources in a wireless communication system.

Referring to FIG. 3, when the general scheduling method is used, since the UEs can use all resources in the boundary period between the cell A and the cell B, it can be seen that interference occurs at the cell boundary and thus the transmission speed is decreased.

However, in case of using the Coordinated Scheduling (CS) method, the channel state is good because the interference is not generated by allocating resources so that the channels used by the UEs do not overlap each other in the boundary section between Cell A and Cell B. It can be seen that the transmission speed is also increased.

An example of allocating time resources in an exclusive allocation scheme for terminals located at a cell boundary is shown in FIG. 4.

Referring to FIG. 4, the terminal A 410 is exclusively allocated such that time resources used by the terminal A 410 and the terminal B 420 in the cell boundary region 13 between the two cells 10 and 20 are different from each other. ) And the terminal B 420 does not generate mutual interference, thereby improving the channel state of the terminals, thereby improving transmission speed.

On the other hand, for the terminal C (430) and the terminal D (440) located in each cell inner region (11, 21) of the two cells (10, 20), not the cell boundary, as shown in FIG. Frequency reuse can be increased by allocating resources for reuse.

On the other hand, the channel quality information (CQI) reported after the terminal receives a signal transmitted from the base station as shown in Table 1 below, the target block error rate (Target BLock Error Rate, BLER) is a constant value, for example For example, the terminal reports a level 0 to 15 that the terminal can receive while maintaining it at 10%.

[Table 1]

On the other hand, the priority for scheduling of the radio resources can be determined according to the following equation (1).

[Equation 1]

That is, when the CQI is low, the priority of the CQI is low, so that a small amount of radio resources is allocated to the UE. When the CQI is high, the priority is high and more resources are allocated to the UE.

Meanwhile, referring to FIG. 4, when terminal A 410 reports CQI to cell 1 10, data is transmitted from neighbor cell 2 20 to terminal B 420 at resource time A. FIG. Since the terminal A 410 reports to the cell 1 (10) has a high value.

However, since cell 2 (20) transmits data to terminal B (420) at resource time B, this signal interferes with a reference signal transmitted from cell 1 (10) to terminal A (410). Therefore, the CQI reported by the terminal A 410 to the cell 1 10 has a low value.

As such, when an exclusive allocation scheme of time resources is performed for the terminals 410 and 420 located in the boundary region 13 of the cells 10 and 20, the CQIs reported by the terminals 410 and 420 are attached to FIG. 6. The fluctuations are severe as shown in FIG.

In this case, the CQI reported by the terminal A 410 in the B resource time may be low, but the CQI reported by the terminal A 410 in the A resource time is not limited to the CQI reported by the terminal A 410 and the terminal B 420 It is reported as high value due to the exclusive allocation of resources. Accordingly, due to the high CQI, the priority of the terminal A 410 is increased and more resources are allocated to the terminal A 410 located in the border area 13 of the cell 1 10, A relatively smaller number of resources are allocated to other terminals located in the inner region 11 including the central portion of the base station 10. Therefore, there is a problem that the total throughput of the cell 1 (10) drops.

Hereinafter, a method and apparatus for radio resource scheduling according to an embodiment of the present invention for solving the above problem will be described.

7 is a schematic structural diagram of a network according to an embodiment of the present invention.

Referring to FIG. 7, a network according to an exemplary embodiment of the present invention includes a radio unit (RU) 100, a digital unit DU 200, and a core system 300. do. The wireless signal processing apparatus 100 and the digital signal processing apparatus 200 form a signal processing system for wireless communication.

The wireless signal processing apparatus 100 converts and amplifies a digital signal received from the digital signal processing apparatus 200 into a radio frequency (RF) signal according to a frequency band as a part of processing a wireless signal. A plurality of wireless signal processing apparatuses 100, 110, 120 and 130 are connected to the digital signal processing apparatus 200, and each wireless signal processing apparatus 100 is installed in a service area, that is, a cell. The wireless signal processing apparatus 100 and the digital signal processing apparatus 200 may be connected by an optical cable.

The digital signal processing apparatus 200 performs processing such as encryption and decryption of a wireless digital signal, and is connected to the core system 300. Unlike the wireless signal processing apparatus 100, the digital signal processing apparatus 200 is not installed in a service area but is mainly installed in a central office of a communication company, and is a virtualized base station. The digital signal processing apparatus 200 transmits and receives signals to and from a plurality of radio signal processing apparatuses 100.

The existing communication base station includes a processing unit corresponding to each of the wireless signal processing apparatus 100 and the digital signal processing apparatus 200 in one physical system, and one physical system is installed in the service target area. On the other hand, the system according to the present invention physically separates the wireless signal processing device 100 and the digital signal processing device 200, and only the wireless signal processing device 100 is installed in the service area.

The core system 300 processes connection between the digital signal processing apparatus 200 and the external network, and includes an exchange (not shown) and the like.

In the embodiment of the present invention, referring to FIG. 8, the digital signal processing apparatus 200 is an uplink received by two wireless signal processing apparatuses 110 and 120 located in each of adjacent cells 10 and 20, respectively. Receives the measured value of the signal strength. Thereafter, the digital signal processing apparatus 200 evaluates uplink quality of the terminals 450 and 460 based on the signal strength values received from the two wireless signal processing apparatuses 110 and 120, and according to the evaluation result. It is determined whether the cell boundary area 13 of the terminals 450 and 460 is located.

Referring to FIG. 8, since the UEs 450 and 460 are located in the cell boundary region 13, the digital signal processing apparatus 200 performs the exclusive allocation of resources to the UEs 450 and 460, (110, 120). Particularly, in the embodiment of the present invention, when the radio signal processing apparatus 110 of the cell 1 10 transmits data to the terminal 450 when the time resource A is used, the radio signal processing apparatus 120 of the cell 2 20 And controls the terminal 460 to transmit data when the time resource B is used.

The digital signal processing apparatus 200 is connected to the radio signal processing apparatus 110 of the cell 1 10 by the terminal 450 when the radio signal processing apparatus 120 of the cell 2 20 transmits data, , And controls the scheduling of the radio resources according to the determined priority. With respect to the radio signal processing apparatus 120 of the cell 2 20, only the CQI transmitted from the terminal 460 when the radio signal processing apparatus 110 of the cell 1 10 transmits the data for the time resource A is used Determines the priority, and controls the scheduling of the radio resources according to the determined priority. Accordingly, each of the wireless signal processing apparatuses 110 and 120 receives data from the terminals 450 and 460 when the wireless signal processing apparatus of an adjacent cell transmits data without transmitting data according to the control of the digital signal processing apparatus 200 Priority is determined using the reported CQI and used for scheduling of radio resources.

That is, since the wireless signal processing device 110 of the cell 1 10 has the resource time B when it does not transmit data itself, the priority is determined using the CQI reported from the terminal 450 The wireless signal processing apparatus 120 of the cell 2 20 performs the scheduling of the radio resources and the CQI reported from the terminal 460 at this time is used when the time resource during which the wireless signal processing apparatus 120 itself does not transmit data is resource time A. And determines a priority order to perform scheduling of radio resources.

Hereinafter, a radio resource scheduling method according to an embodiment of the present invention will be described with reference to FIG.

9 is a flowchart of a method of scheduling radio resources according to an embodiment of the present invention.

Here, a radio resource scheduling method according to an embodiment of the present invention will be described with reference to the radio signal processing apparatus 110 of the cell 1 (10) shown in FIG. That is, when the UE 450 is located within the cell boundary region 13 and performs exclusive allocation (CS) of resources, the UE 450 transmits data to the UE 450 when the UE 450 is A resource time, It is assumed that data is not transmitted when B resource time. In addition, the above description may be applied to the radio signal processing apparatus 120 of the cell 2 20, except that only time resources for which exclusive allocation of resources CS is performed are different.

Referring to FIG. 9, the wireless signal processing apparatus 110 transmits a reference signal to the terminal 450 to know the channel state of the terminal 460 (S100).

Accordingly, the terminal 460 receives the reference signal transmitted from the wireless signal processing apparatus 110, generates CQI, which is channel state information, according to the reception result, and reports the CQI to the wireless signal processing apparatus 110 (S110). The steps (S100, S110) are performed both at the time resources A and B, respectively.

Upon receiving the CQI reported from the UE 450, the radio signal processor 110 determines whether the current resource allocation (CS) is being performed (S120). If the exclusive allocation of resources (CS) is being performed, the wireless signal processing apparatus 110 determines whether the resource time when the CQI is received is B resource time (S130).

If it is not the B resource time, since the CQI is received at the A resource time, the CQI at this time is a CQI having a high value because the CQI is not good because the radio signal processing device 120 of the adjacent cell 20 does not transmit data, At this time, the received CQI is discarded, the reference signal is transmitted again, and the steps (S100 and S110) for receiving the CQI corresponding thereto from the terminal 450 are repeated.

However, if the resource time at the time the CQI is received is the B resource time, the CQI at this time is the result of interference by the wireless signal processing device 120 of the neighboring cell 20, Since the CQI is low, the wireless signal processing apparatus 110 determines the priority using the CQI received in step S110 in step S140.

Thereafter, the radio signal processor 110 performs scheduling of radio resources for the UE 450 according to the priority determined in the step S140 (S150).

Meanwhile, if the exclusive allocation of resources (CS) is not performed in step S120, the wireless signal processing apparatus 110 determines the priority using the CQI received in step S110 regardless of the resource time (S140), and performs scheduling of radio resources for the UE 450 according to the determined priority (S150). This is because the radio signal processing apparatus 120 of the neighbor cell 20 may transmit data at any time resource when the exclusive allocation of resources CS is not performed.

10 is a diagram illustrating an example in which radio resources are allocated according to a scheduling method of a radio resource according to an embodiment of the present invention.

10, when there are four terminals (470, 471, 472, 473) in the cell 1 (10) and the cell 2 (20), the radio resources of the proportional fair radio resource according to the embodiment of the present invention When the scheduling method is applied, the terminal 470, the terminal 471, the terminal 472, and the terminal 473 can use time resources of 50%, 25%, 25%, and 50%, respectively.

In particular, the terminal 471 and the terminal 472 in the border area 13 are allocated 25% each because they use 50% of the time resources through the exclusive allocation of resources (CS).

In this way, when performing exclusive allocation (CS) of resources to the terminals located in the border area 13, the channel status of the corresponding terminals is improved, and as a result, the priorities are increased and more resources are allocated, In order to prevent the throughput of the UEs located in the neighboring cell to be relatively low, it is preferable to transmit the data in the adjacent cell among the CQIs reported by the UEs to the UEs to which the exclusive allocation (CS) The scheduling of the radio resources is performed by determining the priority using the CQI to prevent the UEs located inside the cell from falling in priority. This can solve the problem that the throughput of the terminals located inside the cell is relatively low.

Now, the digital signal processing apparatus 200 according to the embodiment of the present invention will be described in detail with reference to FIG. 11.

11 is a block diagram of a digital signal processing apparatus 200 according to an embodiment of the present invention.

Referring to FIG. 11, the digital signal processing apparatus 200 includes a receiving unit 210, a determining unit 220, a priority setting unit 230, and a resource allocating unit 240.

The receiver 210 receives an uplink signal strength value determined by signals received from the terminals 450 and 460 from the wireless signal processing apparatuses 110 and 120.

The determination unit 220 determines whether the terminal is located inside the cell or the boundary region between the cells based on the signal strength value for each terminal received by the receiver 210.

The CS setting unit 230 determines the terminals 450 and 460 located in the boundary region between the cells according to the determination of the determination unit 220, and sets the exclusive allocation of resources to the identified terminals. The radio resources are allocated to the terminals 450 and 460 so as not to overlap each other. Here, time resources are allocated so that they do not overlap each other.

The control unit 240 to the wireless signal processing device (110, 120) for providing a service for the terminal (450, 460) that the exclusive allocation of resources in the CS setting unit 230 is performed with the CS setting content of the present invention A request is made to perform scheduling according to a scheduling method of a radio resource according to an embodiment of the present invention. That is, the UEs 450 and 460 and the other UEs 450 and 460, which perform the exclusive allocation of resources, to the UEs 450 and 460 that perform the exclusive allocation of resources, A priority is determined using the measured CQI when data is received, and scheduling of radio resources is performed according to the determined priority.

Next, the wireless signal processing apparatus 110 and 120 according to the embodiment of the present invention will be described in detail with reference to FIG. 12. Here, since the wireless signal processing apparatuses 110 and 120 have the same configuration, only the wireless signal processing apparatus 110 will be described.

12 is a block diagram of a wireless signal processing apparatus 110 according to an embodiment of the present invention.

12, the radio signal processing apparatus 110 includes a reference signal transmitting unit 111, a CQI receiving unit 112, a determining unit 113, a priority determining unit 114, and a scheduling unit 115 do.

The reference signal transmitting unit 111 transmits a reference signal to the terminal 450 for each time resource.

The CQI receiver 112 receives channel state information (CQI) determined by reception of a reference signal from the terminal 450 for each time resource.

The determination unit 113 checks the time resource in which the CQI received by the CQI receiving unit 112 is measured. In particular, the determination unit 113 receives the exclusive allocation (CS) setting information of the resource of the terminal 450 from the digital signal processing device 200 and receives the time resource allocated to the terminal 450, A, it is determined whether the CQI received at the CQI receiver 112 is measured at a time resource allocated to the terminal 450. [ If the resource allocation is not set, the determination unit 113 transmits the CQI received from the CQI receiving unit 112 to the priority determining unit 114. [ However, when exclusive allocation of resources is set in the terminal 450, only when the CQI received in the CQI receiving unit 112 is measured in a time resource other than the time resource allocated to the terminal 450, the CQI is prioritized (114). Here, if the CQI received by the CQI receiver 112 is measured in the time resource allocated to the terminal 450, the CQI measured in the time resource other than the time resource allocated to the terminal 450 may be prioritized To the ranking determination unit 114. [

The priority determination unit 114 determines a priority according to Equation (1) using the CQI transmitted from the determination unit 113. [

The scheduling unit 115 controls the reference signal transmitting unit 111 to transmit a reference signal to the terminal 450 for each time resource and transmits the reference signal to the terminal 450 according to the priority determined by the priority determining unit 114. [ And performs scheduling of radio resources, especially time resources.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, It belongs to the scope of right.

Claims (15)

A method for scheduling radio resources by a radio signal processing apparatus, each of which is included in a plurality of cells and provides radio communication for a terminal in a cell,
Transmitting a reference signal to a terminal and receiving channel state information measured based on the reception of the reference signal from the terminal; And
Scheduling the radio resource using the channel state information when the channel state information is information measured at a resource time at which a radio signal processing apparatus of an adjacent cell transmits data;
Scheduling method comprising a. The method of claim 1,
Wherein the scheduling comprises:
Determining whether the channel state information is measured at a resource time at which the radio signal processor of an adjacent cell transmits data;
Not using the channel state information if the channel state information is determined to be measured at a resource time when the radio signal processing apparatus of an adjacent cell does not transmit data;
Determining a priority using the channel state information if the channel state information is determined to have been measured at a resource time at which data is transmitted by a radio signal processor of an adjacent cell; And
Scheduling radio resources according to the priority order
Scheduling method comprising a. The method of claim 1,
Between the receiving step and the scheduling step,
Determining whether the channel state information is information measured while the exclusive allocation of resources is performed;
Performing the scheduling when the channel state information is information measured while an exclusive allocation of resources is performed;
When the channel state information is information measured while exclusive allocation of resources is not performed, it is determined whether the channel state information is information measured at a resource time at which the radio signal processing apparatus of an adjacent cell transmits data And scheduling radio resources using the channel state information without
Scheduling method, characterized in that. 4. The method according to any one of claims 1 to 3,
Wherein the radio resource is a time resource. A scheduling method in an apparatus for commonly managing a radio signal processing apparatus included in a plurality of cells and providing radio communication to terminals in a cell,
Receiving, by the device, a signal received from a terminal through the wireless signal processing device; And
Determining terminals which perform exclusive allocation of resources in a boundary area of adjacent cells based on the signal received from the terminal; And
When scheduling radio resources for terminals that perform exclusive allocation of resources, scheduling of radio resources is performed by using channel state information measured when the radio signal processing apparatus does not transmit data using radio resources allocated to the terminals. Performing control on the wireless signal processing apparatus to perform
Scheduling method comprising a. The method of claim 5,
Determining the terminals,
Determining whether the terminal is located in a boundary region of the adjacent cells based on a signal received from the terminal; And
If it is determined that the UE is located in a cell boundary region, determining that the UE is performing resource allocation to the UE
Scheduling method comprising a. The method of claim 5,
Performing the control,
Allocating radio resources to terminals performing exclusive allocation of resources;
Transmitting information of a terminal performing exclusive allocation of resources to the radio signal processor and information of a radio resource allocated to the terminal; And
Performing control on the radio signal processing apparatus to perform scheduling of radio resources using measured channel state information when data is not transmitted using radio resources allocated to the UE
Scheduling method comprising a. The method of claim 5,
Wherein the channel state information measured when the data is not transmitted using the radio resource allocated to the UE is channel state information measured when the radio signal processor of the adjacent cell transmits data. A digital signal processing device connected to the core system for processing a wireless digital signal; And
A digital signal processing unit that is physically separated from the digital signal processing unit and converts and amplifies the digital signal received from the digital signal processing unit to transmit the amplified signal to the terminal, The wireless signal processing apparatus comprising:
The digital signal processing apparatus performs control to perform exclusive allocation of resources to terminals located in a border region of adjacent cells,
If the channel state information received from the terminal performing exclusive allocation of resources is information measured at the resource time at which the radio signal processing apparatus of the cell adjacent to the cell to which the terminal belongs belongs to transmitting data, the radio signal processing apparatus corresponds to the corresponding channel. To schedule radio resources using status information
Wherein the scheduling apparatus comprises: 10. The method of claim 9,
Wherein the digital signal processing apparatus controls to perform exclusive allocation of resources by receiving a signal received from a terminal through a wireless signal processing apparatus. The method of claim 10,
Wherein the digital signal processing apparatus determines whether the terminal is located in a boundary area between adjacent cells through a signal received from the terminal. 10. The method of claim 9,
Wherein the radio signal processor performs scheduling of radio resources using channel state information received every resource time for a terminal that does not perform exclusive allocation of resources. 10. The method of claim 9,
When the channel state information received from the terminal performing exclusive allocation of resources is information measured at a resource time at which the radio signal processing apparatus transmits data to the terminal, Wherein the scheduling unit performs scheduling of radio resources using channel state information measured at a resource time at which the signal processing apparatus transmits data. 10. The method of claim 9,
The digital signal processing apparatus comprising:
A receiver configured to receive an uplink signal strength value from a terminal through the wireless signal processing apparatus;
A determination unit determining whether each terminal is located in a cell boundary region based on the signal strength value of each terminal received by the reception unit; And
A setting unit configured to allow the determination unit to identify UEs located in a cell boundary region, to perform exclusive allocation of resources to the identified UEs, and to allocate radio resources to each UE so that they do not overlap with each other; And
Wherein the setting unit transmits exclusive allocation setting information of a resource to a wireless signal processing device that provides a service for a terminal set to perform exclusive allocation of resources, and the wireless signal processing device of an adjacent cell transmits data To control the radio signal processing apparatus to perform scheduling of radio resources using channel state information measured at a resource time
. 10. The method of claim 9,
The radio signal processing apparatus includes:
A transmitter for transmitting a reference signal to the terminal for each resource time;
A receiver configured to receive channel state information measured by a terminal receiving the reference signal;
Wherein the controller determines whether the channel state information received by the receiver is a resource time at which the radio signal processor of the neighboring cell measures the resource time to transmit data, A determination unit for transmitting the channel status information when the processing apparatus is a resource time for transmitting data;
A determining unit for determining a priority using channel state information transmitted from the determining unit; And
A scheduler for performing scheduling of radio resources according to a priority determined by the determiner;
.

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