WO2015010286A1

WO2015010286A1 - Frequency-division multiplexing method, device and system for frequency spectrum resources

Info

Publication number: WO2015010286A1
Application number: PCT/CN2013/080033
Authority: WO
Inventors: 孙晓光; 刘智华; 虞效; 舒文杰
Original assignee: 华为技术有限公司
Priority date: 2013-07-24
Filing date: 2013-07-24
Publication date: 2015-01-29
Also published as: CN103703806A; CN103703806B

Abstract

Disclosed are a frequency-division multiplexing method, device and system for frequency spectrum resources, used for solving the problem of how to improve the utilization rate of frequency spectrum resources. The method provided in the present invention comprises: determining an inner circular cell and an outer circular cell in a first cell, wherein the inner circular cell and the outer circular cell are both independent cells; and configuring the frequency spectrum resources of the first cell in the outer circular cell, and configuring the frequency spectrum resources of a second cell in the inner circular cell. The present invention is applicable to the field of communications, used for performing frequency multiplexing.

Description

Method, device and system for frequency division multiplexing of spectrum resources

The present invention relates to the field of communications, and in particular, to a method, device and system for frequency division multiplexing of spectrum resources.

Background technique

In recent years, in mobile communication systems, as the number of users increases and the variety of communication services increases, the network capacity and network quality of communication carriers are put under great pressure. On the other hand, according to the provisions of the international radio regulations, the existing radio communication is divided into more than 50 different services such as mobile communication, broadcasting, television, radio navigation, positioning and telemetry, and a certain frequency band is defined for each service. . As a type of radio communication, international radio regulations specify spectrum resources for a limited frequency band for mobile communication systems. However, in general, a mobile communication system can be implemented by multiple operators together; in order to ensure that services between different operators do not interfere with each other and ensure communication quality, the international radio regulations need to further divide the spectrum resources specified by the mobile communication system. , allocate available spectrum resources to each operator.

Through the provisions of the radio communication rules and further division at the operator level, the spectrum resources available to each operator are extremely limited; in order to meet the growing business demands through limited spectrum resources, how to improve the utilization of spectrum resources is a Problems to be solved. Summary of the invention

Embodiments of the present invention provide a method, apparatus, and system for frequency division multiplexing of spectrum resources, which can improve spectrum resource utilization.

In order to achieve the above object, embodiments of the present invention use the following technical solutions:

In a first aspect, an embodiment of the present invention provides a method for frequency division multiplexing a spectrum resource, where the method includes:

Determining an inner circle cell and an outer circle cell in the first cell, wherein the inner circle cell and the outer circle cell are both An independent cell, where the inner circle cell is a partial area adjacent to the first base station in the first cell, the outer circle cell is the first cell, and the first cell is a plurality of the first base station management Any cell of the cell;

Configuring a spectrum resource of the first cell in the outer circle cell, and configuring a spectrum resource of the second cell in the inner circle cell, where the second cell is any one of multiple cells managed by the second base station The second base station and the first base station are two base stations in a frequency reuse cluster.

In a first possible implementation manner of the first aspect, the determining the inner circle cell and the outer circle cell in the first cell includes: configuring an AAS (Active Antenna System) in the base station, The AAS determines an inner circle cell and an outer circle cell in the first cell; or configures a dual antenna in the base station, and determines an inner circle cell and an outer circle cell in the first cell by using the dual antenna.

With reference to the first aspect or the first possible implementation manner of the first aspect, in a second possible implementation manner of the first aspect, after determining the inner circle cell and the outer circle cell in the first cell, :

The broadcast control channel BCCH signal is respectively sent in the inner circle cell and the outer circle cell, so that the signal strength of the inner circle cell is measured when the UE initiates handover from the outer circle cell to the inner circle cell.

With the first aspect or the first possible implementation manner of the first aspect, in a third possible implementation manner of the foregoing aspect, after the first cell is divided into an inner circle cell and an outer circle cell, the method further includes :

The broadcast control channel BCCH signal is transmitted only in the outer circle cell.

With reference to the first aspect, or the first possible implementation of the first aspect, or the second possible implementation of the first aspect, or the third possible implementation of the first aspect, in the first aspect In four possible implementation manners, the method further includes:

Determining the frequency reuse factor according to the quality and capacity requirements of the communication network;

The number of base stations in the frequency reuse cluster and the number of cells managed by each base station are determined according to the frequency reuse coefficient. Combining the first aspect, or the first possible implementation of the first aspect, or the second possible implementation of the first aspect, or the third possible implementation of the first aspect, or the first aspect In a fourth possible implementation manner of the first aspect, the method further includes:

The downtilt angle of the inner circle cell antenna is adjusted to adjust the range of the inner circle cell, thereby controlling mutual interference between the inner circle cell and the outer circle cell. In a second aspect, the embodiment of the present invention further provides an apparatus for performing frequency division multiplexing on a spectrum resource, where the apparatus includes:

a processing unit, configured to determine an inner circle cell and an outer circle cell in the first cell, where the inner circle cell and the outer circle cell are independent cells, where the inner circle cell is adjacent to the first base station in the first cell a partial area, where the outer circle cell is the first cell, and the first cell is any one of a plurality of cells managed by the first base station;

a frequency multiplexing unit, configured to configure a spectrum resource of the first cell in the outer circle cell, and configure a spectrum resource of a second cell in the inner circle cell, where the second cell is managed by a second base station Any one of the plurality of cells, the second base station and the first base station are two base stations in one frequency reuse cluster.

In conjunction with the second aspect, in a first possible implementation of the second aspect, the apparatus further includes an AAS or a dual antenna:

The processing unit is configured to determine an inner circle cell and an outer circle cell in the first cell by using the AAS;

Alternatively, the processing unit is further configured to determine an inner circle cell and an outer circle cell in the first cell by using the dual antenna.

With reference to the second aspect or the first possible implementation manner of the second aspect, in a second possible implementation manner of the second aspect, the device further includes:

a first sending unit, configured to separately send a broadcast control channel in the inner circle cell and the outer circle cell The BCCH signal is used to measure the signal strength of the inner circle cell when the UE initiates a handover from the outer circle cell to the inner circle cell.

With reference to the second aspect, or the first possible implementation of the second aspect, in a third possible implementation manner of the second aspect, the device further includes:

a second sending unit, configured to send a broadcast control channel BCCH signal only in the outer circle cell. With reference to the second aspect, or the first possible implementation of the second aspect, or the second possible implementation of the second aspect, or the third possible implementation of the second aspect, in the second aspect In four possible implementation manners, the device further includes:

a determining unit, configured to determine a frequency reuse coefficient according to a quality and a capacity requirement of the communication network, where the frequency reuse coefficient is used to determine the number of base stations in the frequency reuse cluster and the number of cells managed by each base station;

The frequency multiplexing unit is specifically configured to perform frequency multiplexing according to the frequency reuse coefficient determined by the determining unit.

With reference to the second aspect, or the first possible implementation of the second aspect, or the second possible implementation of the second aspect, or the third possible implementation of the second aspect, or the second aspect In a fourth possible implementation manner of the second aspect, the device further includes:

The interference control unit is configured to adjust a downtilt angle of the inner circle cell antenna to adjust a range of the inner circle cell, thereby controlling mutual interference between the inner circle cell and the outer circle cell. In a third aspect, an embodiment of the present invention further provides a base station, where the base station includes:

a processor, configured to determine an inner circle cell and an outer circle cell in the first cell, where the inner circle cell and the outer circle cell are independent cells, where the inner circle cell is adjacent to the first base station in the first cell a partial area, where the outer circle cell is the first cell, and the first cell is any one of a plurality of cells managed by the first base station;

The processor is further configured to configure, in the outer circle cell, a spectrum resource of the first cell, where Configuring the inner cell to configure the spectrum resource of the second cell, where the second cell is any one of the multiple cells managed by the second base station, and the second base station and the first base station are one frequency reuse Two base stations in the cluster.

With reference to the third aspect, in a first possible implementation manner of the third aspect, the base station further includes an active antenna system AAS or a dual antenna;

The AAS is used by the processor to determine an inner circle cell and an outer circle cell in the first cell; or

The dual antenna is configured for the processing unit to determine an inner circle cell and an outer circle cell in the first cell.

With reference to the third aspect, or the first possible implementation manner of the third aspect, in a second possible implementation manner of the third aspect, the base station further includes:

And a transmitter, configured to separately send a broadcast control channel BCCH signal in the inner circle cell and the outer circle cell, so that the UE measures the signal strength of the inner circle cell when the UE initiates handover from the outer circle cell to the inner circle cell.

With reference to the third aspect, or the first possible implementation manner of the third aspect, in a third possible implementation manner of the third aspect, the base station further includes:

a second sending unit, configured to send a broadcast control channel BCCH signal only in the outer circle cell. With reference to the third aspect, or the first possible implementation manner of the third aspect, or the second possible implementation manner of the third aspect, or the third possible implementation manner of the third aspect, in the third aspect In four possible implementation manners, the base station further includes:

a planning platform, configured to determine a frequency reuse coefficient according to a quality and a capacity requirement of the communication network, where the frequency reuse coefficient is used to determine the number of base stations in the frequency reuse cluster and the number of cells managed by each base station;

The processor is specifically configured to perform frequency reuse according to the frequency reuse coefficient determined by the planning platform.

Combining the third aspect, or the first possible implementation of the third aspect, or the third aspect The second possible implementation manner, or the third possible implementation manner of the third aspect, or the fourth possible implementation manner of the third aspect, in the fifth possible implementation manner of the third aspect, the processing The device is further configured to adjust a downtilt angle of the inner circle cell antenna to adjust a range of the inner circle cell, thereby controlling mutual interference between the inner circle cell and the outer circle cell. In a fourth aspect, the embodiment of the present invention further provides a communication system for performing frequency division multiplexing on a spectrum resource, where the communication system includes at least one frequency reuse cluster, and the frequency reuse cluster includes at least a first base station and a second base station, wherein:

The first base station is configured to be an inner circle cell and an outer circle cell in the first cell, where the inner circle cell and the outer circle cell are independent cells, and the inner circle cell is a neighboring cell in the first cell a partial area of a base station, where the outer circle cell is the first cell, and the first cell is any one of a plurality of cells managed by the first base station;

The second base station is configured to configure a spectrum resource for the second cell, and send configuration information of the spectrum resource of the second cell to the first base station, so that the first base station sends the location information according to the configuration information. Configuring a spectrum resource of the second cell to the inner circle cell, where the second cell is any one of a plurality of cells managed by the second base station;

The first base station is further configured to configure a spectrum resource of the first cell for the outer circle cell, where the first base station is further configured to configure, for the inner circle cell, the second cell according to the configuration information. Spectrum resources.

With reference to the fourth aspect, in a first possible implementation manner of the fourth aspect, the first base station includes an active antenna system AAS or a dual antenna;

The AAS is used by the first base station to determine an inner circle cell and an outer circle area in the first cell;

The dual antenna is configured for the first base station to determine an inner circle cell and an outer circle cell in the first cell.

In combination with the fourth aspect or the first possible implementation of the fourth aspect, the second aspect of the fourth aspect In a possible implementation manner, the first base station is configured to separately send a broadcast control channel BCCH signal in the inner circle cell and the outer circle cell, so that the UE measures the inner area when the outer circle cell initiates the handover to the inner circle cell. The signal strength of the round cell.

With reference to the fourth aspect, or the first possible implementation manner of the fourth aspect, in a third possible implementation manner of the fourth aspect, the first base station is configured to send a broadcast control channel BCCH only in the outer circle cell signal.

With reference to the fourth aspect, or the first possible implementation manner of the fourth aspect, or the second possible implementation manner of the fourth aspect, or the third possible implementation manner of the fourth aspect, in the fourth aspect In four possible implementation manners, the communications system further includes:

The communication system is configured to perform frequency reuse according to a frequency reuse coefficient determined by the planning platform.

With reference to the fourth aspect, or the first possible implementation manner of the fourth aspect, or the second possible implementation manner of the fourth aspect, or the third possible implementation manner of the fourth aspect, or the fourth aspect In a fourth possible implementation manner of the fourth aspect, the first base station is further configured to adjust a downtilt angle of the inner circle cell antenna to adjust a range of the inner circle cell, thereby Mutual interference between the inner circle cell and the outer circle cell is controlled.

A method, device, and system for performing frequency division multiplexing on a spectrum resource according to an embodiment of the present invention, by determining two independent cells of an inner circle cell and an outer circle cell in the first cell, the other cells may be multiplexed in the inner circle cell ( For example, the spectrum resource of the second cell enables the first cell to multiplex spectrum resources of the neighboring cell (the neighboring cell and the first cell belong to different base stations), so that the communication system obtains a larger traffic channel capacity; On the other hand, when the UE needs to switch from the outer circle cell to the inner circle cell, the signal strength of the inner circle cell can be known, the risk of blind call drop is avoided, and the service of the UE is guaranteed to operate normally. DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments will be briefly described below. It is obvious that the drawings in the following description are only the present invention. For some embodiments, other drawings may be obtained from those of ordinary skill in the art without departing from the drawings.

FIG. 1 is a schematic flowchart of a method for frequency division multiplexing a spectrum resource according to Embodiment 1 of the present invention;

2 is a schematic flow chart of a method for frequency division multiplexing a spectrum resource according to Embodiment 2 of the present invention;

3 is a schematic diagram of a frequency reuse cluster according to Embodiment 2 of the present invention;

4 and FIG. 5 are structural block diagrams of apparatus for frequency division multiplexing a spectrum resource according to Embodiment 3 of the present invention;

6 and FIG. 7 are structural block diagrams of a communication system according to Embodiment 4 of the present invention;

FIG. 8 and FIG. 9 are structural diagrams of a base station according to Embodiment 5 of the present invention. detailed description

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

Embodiment 1

An embodiment of the present invention provides a method for performing frequency division multiplexing on a spectrum resource, where the method may be implemented by a function module in a first base station or a first base station, or may be implemented by other network element devices in a communication system. This embodiment is not limited.

This embodiment is described by taking the implementation of the first base station as an example. As shown in FIG. 1 , the method includes: 101. The first base station determines an inner circle cell and an outer circle cell in the first cell, and the inner circle cell and The outer circle cells are all independent cells.

The inner circle cell is a partial area adjacent to the first base station in the first cell, the outer circle cell is the first cell, and the first cell is a plurality of cells managed by the first base station Any cell.

It should be noted that the inner circle cell and the outer circle cell are independent cells in the same frequency band.

The first base station configures, in the outer circle cell, the spectrum resource allocated by the first base station to the first cell, and configures, in the inner circle cell, a spectrum resource allocated by the second base station to the second cell, where The second base station and the first base station are two base stations in a frequency reuse cluster, and the second cell is any one of a plurality of cells managed by the second base station.

It is to be noted that, since the area of the inner circle cell is simultaneously covered by the inner circle cell and the outer circle cell, the UE monitors the spectrum information of the first cell and the spectrum resource of the second cell; the UE can monitor the signal information of the inner circle cell and Signal information of the outer circle cell (including at least signal strength and signal quality), and transmitting the monitored signal information to the first base station; the first base station selects a cell with a strong signal strength or selects a cell with high signal quality for the UE to connect In. It should be emphasized that since the coverage of the inner circle cell is smaller than the coverage of the outer circle cell, the signal strength and signal quality of the inner circle cell are higher than that of the outer circle cell within the coverage of the inner circle cell, that is, In this embodiment, the UE located in the inner circle cell uses the spectrum resource of the inner circle cell (ie, the spectrum resource of the second cell) to perform communication. The foregoing method is only a method for performing signal selection in an inner circle cell, and other methods may be used to determine a spectrum resource using an inner circle cell, for example, according to a distance between a UE and a base station, and the like, where the method is no longer used. Narration.

In cellular network communication systems, the frequency reuse method of M*N is generally used to determine the frequency planning method. Where M represents the number of base stations, and N represents the number of cells managed by each base station, and then M*N cells form a frequency reuse cluster. The communication system using the frequency division multiplexing method provided in this embodiment includes a plurality of frequency reuse clusters, and the spectrum resources that can be used by different frequency reuse clusters are the same.

In this embodiment, the first cell is taken as an example. The processing method of other cells in the same frequency multiplexing cluster is the same as that of the first cell. By determining two separate cells in the cell (within The circular cell and the outer circle cell enable the inner and outer circle cells belonging to different base stations to mutually multiplex each other's spectrum resources, thereby enabling the spectrum capacity of the entire communication system to be at least doubled. According to the solution provided by the embodiment of the present invention, in the frequency reuse cluster, for the first cell and the second cell that do not belong to the same base station, whether the first cell and the second cell are neighboring cells, Reuse each other's spectrum resources.

Specifically, when the first cell and the second cell are non-adjacent cells, the same-frequency interference can be effectively suppressed, so that the mutual spectrum resources can be mutually multiplexed; when the first cell and the second cell are In the case of the neighboring cell, the method provided in this embodiment is used, because a partial area of the outer circle cell of the first cell exists between the inner circle cell and the second cell in the first cell (this part area can be understood as avoiding the first part). The inner circle cell in the cell and the protection area in which the second cell interferes with each other), so that the inner frequency cell of the first cell and the second cell can effectively suppress the same frequency interference, thereby allowing the inner circle cell of the first cell to be restored. Use the spectrum resources of the second cell. In the same way, the second cell can also use more spectrum resources by frequency multiplexing.

A method for performing frequency division multiplexing on a spectrum resource according to an embodiment of the present invention, by determining two independent cells of an inner circle cell and an outer circle cell in a first cell, because the inner circle cell and the second cell in the first cell A partial area of the outer circle cell exists as a co-channel interference protection area, so the inner circle cell can multiplex the spectrum resources of the second cell (the second cell and the first cell belong to different base stations), thereby effectively improving the traffic channel in the communication system. Capacity. Embodiment 2

On the basis of the embodiment shown in FIG. 1, the embodiment of the present invention further provides a method for performing frequency division multiplexing on a spectrum resource. As shown in FIG. 2, the method includes:

201. The first base station determines an inner circle cell and an outer circle cell in the first cell, where the inner circle cell and the outer circle cell are independent cells.

The inner circle cell is a partial area adjacent to the first base station in the first cell, the outer circle cell is the first cell, and the first cell is a part of multiple cells managed by the first base station one small Area. For example, the 4*3 frequency multiplexing cluster shown in FIG. 3 is taken as an example, where A, B, C, and D are 4 base stations, and each base station manages 3 cells, and the first cell is the left side managed by the base station A. Community. In Figure 3, A1 is the inner circle cell of the first cell in the base station A, and A4 is the outer circle cell of the first cell in the base station A. (It is emphasized that the coverage of the outer circle cell A4 is the same as that of the first cell. The shaded portion in Fig. 3 is included in the outer circle cell A4, but not in all areas of the outer circle cell A4.

It should be noted that, in this embodiment, the first cell is taken as an example for description, and other cells may use a similar method to multiplex spectrum resources, which is not described in this embodiment.

Optionally, the first base station may determine the inner circle cell and the outer circle cell in the first cell by using the following method:

method one:

An AAS is configured at the first base station, and the inner circle cell and the outer circle cell are determined in the first cell by the AAS.

Method Two:

A dual antenna is configured at the first base station, and the inner circle area and the outer circle area are determined in the first cell by the dual antenna.

202. The first base station sends a BCCH signal in the inner circle cell A1 and the outer circle cell A4 by using the AAS or the dual antenna, so that the UE initiates a handover when the UE initiates a handover from the outer circle cell A4 to the inner circle cell A1. The signal strength of the inner circle cell A1.

In this embodiment, by transmitting the BCCH signal in both the inner circle cell A1 and the outer circle cell A4, when the UE in the first cell needs to switch from the outer circle cell A4 to the inner circle cell A1, it can be internally The signal strength of the round cell A1 is measured. When it is determined that the signal strength of the inner circle cell A1 is greater than the signal strength of the outer circle cell A4, the handover is initiated to the inner circle cell A1 to ensure the handover success rate and avoid the risk of blind call drop.

It is worth noting that compared with the inner circle cell, the number of neighboring cells in the outer circle cell is large, and the probability of occurrence of inter-cell handover is also high, so it is necessary to generate a BCCH signal in the outer circle cell. Optionally, in order to include the channel capacity of the TCH (Traffic Channel), you can choose The outer circle cell sends the BCCH signal, and the inner circle cell does not send the BCCH signal, so that more spectrum resources are used to establish the TCH channel, thereby improving the service carrying capacity.

203. The first base station configures a spectrum resource of the first cell in the outer circle cell A4, and configures a spectrum resource of the second cell in the inner circle cell A1.

The second cell may be any one of the nine cells managed by the base station B, the base station C, and the base station D.

For ease of understanding, the embodiment of the present invention exemplifies a frequency reuse cluster of 4*3 as an example. For example, FIG. 3 is a schematic diagram of a 4*3 frequency reuse cluster, where A, B, C, and D are 4 base stations, and each base station manages 3 cells. Through the method provided in this embodiment, two independent cells of an inner circle cell and an outer circle cell can be determined in each cell. Specifically, as shown in FIG. 3, Al, A2, and A3 are three inner circle cells of the base station A, A4, A5, and A6 are three outer circle cells of the base station A; and Bl, B2, and B3 are three B base stations. The inner circle cell, B4, B5, and B6 are three outer circle cells of the B base station. The cell in which A1 and A4 are located is referred to as the first cell. When frequency multiplexing, the outer circle cell A4 can use the spectrum resource allocated by the base station A for the first cell; the inner circle cell A1 can multiplex the base station B and the base station base station D. The spectrum resources used by the outer circle cells in any cell, thereby increasing the capacity of the traffic channel in the communication system.

It should be noted that, in the case of frequency multiplexing, in order to ensure network quality, in this embodiment, a spectrum resource of a certain cell (which can be recorded as cell X) is applied to the outer circle cell of the cell, and the inner circle of the cell The cell multiplexes the frequency resource of the outer circle cell in the cell of other base stations (which can be recorded as cell Y). Since the inner circle cell in the cell X is only adjacent to the outer circle cell of the base station, the inner circle cell in the cell X and the outer circle cell in the cell Y are non-adjacent, so that the same-frequency interference can be effectively avoided.

It is worth noting that, for more flexible frequency reuse, the frequency reuse coefficient may be determined according to the quality and capacity requirements of the communication network; determining the number of base stations in the frequency reuse cluster according to the frequency reuse coefficient, and managing each base station The number of cells. For example, when the network quality requirement is lower than the network capacity requirement, the number of base stations in the frequency reuse cluster can be reduced; when the network quality requirement is higher than the network capacity requirement, the frequency reuse cluster can be improved. The number of base stations. specific, In order to obtain the highest network capacity, the method provided in this embodiment may be used in a 1*3 frequency reuse cluster, and the inner circle cells in the 3 cells of each base station in the communication system multiplex the same spectrum resources.

Preferably, the base station in this embodiment may further adjust a downtilt angle of the inner circle cell antenna to adjust a range of the inner circle cell, thereby controlling mutual interference between the inner circle cell and the outer circle cell. Specifically, the larger the antenna downtilt angle of the inner circle cell, the smaller the coverage of the inner circle cell and the smaller the mutual interference with the outer circle cell.

A method, device, and system for performing frequency division multiplexing on a spectrum resource according to an embodiment of the present invention, by determining two independent cells of an inner circle cell and an outer circle cell in a first cell, because an inner circle cell in the first cell A partial area of the outer circle cell exists as a co-channel interference protection area between the second cells, so the inner circle cell of the first cell can multiplex the spectrum resources of the second cell (the second cell and the first cell belong to different base stations) Therefore, the communication system obtains a large traffic channel capacity; on the other hand, the BCCH signal is transmitted through the inner circle cell, so that the signal strength of the inner circle cell can be known when the UE needs to switch from the outer circle cell to the inner circle cell, thereby avoiding The risk of blindly cutting off calls ensures that the UE's services are running normally. Embodiment 3

The embodiment of the present invention provides a device for performing frequency division multiplexing on a spectrum resource, which can implement the embodiment shown in FIG. 1 and FIG. 2. As shown in FIG. 4, the device includes:

The processing unit 41 is configured to determine, in the first cell, an inner circle cell and an outer circle cell, where the inner circle cell and the outer circle cell are independent cells, where the inner circle cell is adjacent to the first base station in the first cell a partial area, where the outer circle cell is the first cell, and the first cell is any one of a plurality of cells managed by the first base station;

The frequency multiplexing unit 42 is configured to configure a spectrum resource of the first cell in the outer circle cell, and configure a spectrum resource of the second cell in the inner circle cell, where the second cell is a second base station management Any one of the plurality of cells, the second base station and the first base station are two base stations in one frequency reuse cluster. Further, the device further includes an AAS or a dual antenna;

The processing unit 41 is configured to determine an inner circle area and an outer circle cell in the first cell by using the ASS;

Alternatively, the processing unit 41 is further configured to determine an inner circle cell and an outer circle cell in the first cell by using the dual antenna.

Further, as shown in FIG. 5, the device further includes:

The first sending unit 43 is configured to separately send a broadcast control channel BCCH signal in the inner circle cell and the outer circle cell, so that the UE measures the signal strength of the inner circle cell when the outer circle cell initiates the handover from the outer circle cell to the inner circle cell.

It is worth noting that, compared with the inner circle cell, the number of neighboring cells in the outer circle cell is large, and the probability of small interval handover is also high, so it is necessary to generate a BCCH signal in the outer circle cell. Optionally, in order to include a channel capacity of a TCH (Traffic Channel), the BCCH signal may be selected to be sent in the outer circle cell, and the BCCH signal is not sent in the inner circle cell, so that more spectrum resources are used. To establish a TCH channel and increase the amount of traffic carried. Optionally, the first sending unit 43 may replace the second sending unit 44 shown in the broken line portion in FIG. 5, where the second sending unit 44 is configured to send the broadcast control channel BCCH signal only in the outer circle cell. The BCCH signal is not transmitted in the inner circle cell.

Optionally, as shown in FIG. 5, the device further includes:

a determining unit 45, configured to determine a frequency reuse coefficient according to a quality and a capacity requirement of the communication network, where the frequency reuse coefficient is used to determine the number of base stations in the frequency reuse cluster and the number of cells managed by each base station;

The frequency multiplexing unit 42 is specifically configured to perform frequency multiplexing according to the frequency reuse coefficient determined by the determining unit 45.

Optionally, as shown in FIG. 5, the device further includes:

The interference control unit 46 is configured to adjust a downtilt angle of the inner circle cell antenna to adjust a range of the inner circle cell, thereby controlling mutual interference between the inner circle cell and the outer circle cell. The device for performing frequency division multiplexing on the spectrum resource provided by the embodiment of the present invention, the processing unit determines two independent cells of the inner circle cell and the outer circle cell in the first cell, because the inner circle cell and the second cell in the first cell A partial area of the outer circle cell exists as a co-channel interference protection area, so that the inner circle cell can multiplex the spectrum resources of the second cell (the second cell and the first cell belong to different base stations) by the frequency multiplexing unit. Therefore, the communication system obtains a large traffic channel capacity; on the other hand, the BCCH signal is transmitted through the inner circle cell, so that when the UE needs to switch from the outer circle cell to the inner circle cell, the signal strength of the inner circle cell can be known, and blindness is avoided. Cut off the risk of the call and ensure that the UE's services are running normally. Embodiment 4

The embodiment of the present invention provides a communication system, which can implement the embodiment shown in FIG. 1 and FIG. 2. As shown in FIG. 6, the communication system includes at least one frequency reuse cluster 60, and at least one of the frequency reuse clusters. A first base station 61 and a second base station 62 are included, where:

The first base station 61 is configured to determine an inner circle cell and an outer circle cell in the first cell, where the inner circle cell and the outer circle cell are independent cells, and the inner circle cell is a neighboring cell in the first cell a partial area of a base station, where the outer circle cell is the first cell, and the first cell is any one of a plurality of cells managed by the first base station 61;

The second base station 62 is configured to configure a spectrum resource for the second cell, and send configuration information of the spectrum resource of the second cell to the first base station 61, so that the first base station 61 is configured according to the first base station. The information is configured to allocate the spectrum resource of the second cell to the inner circle cell, where the second cell is any one of a plurality of cells managed by the second base station;

The first base station 61 is further configured to configure a spectrum resource of the first cell for the outer circle cell, where the first base station 61 is further configured to configure the second cell for the inner circle cell according to the configuration information. The spectrum resources of the cell.

Specifically, the first base station 61 includes an AAS or a dual antenna;

The AAS is used by the first base station 61 to determine an inner circle cell and the outer cell in the first cell Round cell

The dual antenna is used by the first base station 61 to determine an inner circle cell and an outer circle cell in the first cell.

Specifically, the first base station 61 may be configured to separately send a broadcast control channel BCCH signal in the inner circle cell and the outer circle cell, so that the UE measures the inner circle cell when the UE initiates handover from the outer circle cell to the inner circle cell. Signal strength. The first base station 61 can measure the signal strength of the inner circle cell when the UE in the first cell can switch from the outer circle cell to the inner circle cell by using the BCCH signal in the inner circle cell and the outer circle cell respectively. Avoid blind cuts and ensure the success rate of the switch.

It is worth noting that, compared with the inner circle cell, the number of neighboring cells in the outer circle cell is large, and the probability of small interval handover is also high, so it is necessary to generate a BCCH signal in the outer circle cell. Optionally, in order to include a channel capacity of a TCH (Traffic Channel), the BCCH signal may be selected to be sent in the outer circle cell, and the BCCH signal is not sent in the inner circle cell, so that more spectrum resources are used. To establish a TCH channel and increase the amount of traffic carried. Optionally, the first base station 61 may also send a broadcast control channel BCCH signal only in the outer circle cell, and do not send a BCCH signal in the inner circle cell.

Further, as shown in FIG. 7, the communication system 60 further includes:

a planning platform 63, configured to determine a frequency reuse coefficient according to a quality and a capacity requirement of the communication network, where the frequency reuse coefficient is used to determine the number of base stations in the frequency reuse cluster and the number of small cells managed by each base station;

The communication system 60 is configured to perform frequency multiplexing according to the frequency reuse coefficients determined by the planning platform 63.

Optionally, the first base station 61 is further configured to adjust a downtilt angle of the inner circle cell antenna to adjust a range of the inner circle cell, so as to control mutual interference between the inner circle cell and the outer circle cell. .

A communication system for performing frequency division multiplexing on a spectrum resource according to an embodiment of the present invention, where the first base station may determine two independent cells of an inner circle cell and an outer circle cell in the first cell, because A partial area of the outer circle cell exists between the inner circle cell and the second cell as the co-channel interference protection area, so the inner circle cell of the first cell can multiplex the second cell (the second cell and the first cell belong to different base stations) Spectrum resources, so that the communication system obtains a larger traffic channel capacity; on the other hand, the BCCH signal is transmitted through the inner circle cell, so that when the UE needs to switch from the outer circle cell to the inner circle cell, the inner circle cell can be known. Signal strength, avoiding the risk of blindly cutting off calls, and ensuring the normal operation of the UE's services. Embodiment 5

The embodiment of the present invention provides a base station, which can implement the foregoing method embodiment shown in FIG. 1 and FIG. 2. As shown in FIG. 8, the base station includes:

The processor 81 is configured to determine, in the first cell, an inner circle cell and an outer circle cell, where the inner circle cell and the outer circle cell are independent cells, where the inner circle cell is adjacent to the first base station in the first cell a partial area, where the outer circle cell is the first cell, and the first cell is any one of a plurality of cells managed by the first base station;

The processor 81 is further configured to configure a spectrum resource of the first cell in the outer circle cell, and configure a spectrum resource of a second cell in the inner circle cell, where the second cell is a second base station management Any one of the plurality of cells, the second base station and the first base station are two base stations in one frequency reuse cluster.

Further, the base station further includes an active antenna system AAS or dual antennas;

The AAS is used by the processor 81 to determine an inner circle cell and an outer circle cell in the first cell; or

The dual antenna is used by the processing unit 81 to determine an inner circle cell and an outer circle cell in the first cell.

Further, as shown in FIG. 9, the base station further includes:

a first transmitter 82, configured to separately send a broadcast control channel BCCH signal in the inner circle cell and the outer circle cell, so that the UE measures the inner circle cell when the UE initiates handover from the outer circle cell to the inner circle cell Signal strength.

Alternatively, the first transmitter 82 in Fig. 9 may be replaced with a second transmitter for transmitting a broadcast control channel BCCH signal only in the outer circle cell.

As shown in FIG. 9, the base station further includes:

a planning platform 83, configured to determine a frequency reuse coefficient according to a quality and a capacity requirement of the communication network, where the frequency reuse coefficient is used to determine the number of base stations in the frequency reuse cluster and the number of small cells managed by each base station;

The processor 81 is specifically configured to perform frequency multiplexing according to the frequency reuse coefficient determined by the planning platform 83.

Further, the processor 81 is further configured to adjust a downtilt angle of the inner circle cell antenna to adjust a range of the inner circle cell, so as to control mutual interference between the inner circle cell and the outer circle cell.

The base station provided by the embodiment of the present invention determines, by the processor, two independent cells of the inner circle cell and the outer circle cell in the first cell, where a part of the outer circle cell exists between the inner circle cell and the second cell in the first cell. The area is a co-channel interference protection area, so the inner circle cell can multiplex the spectrum resources of the second cell (the second cell and the first cell belong to different base stations), so that the communication system obtains a larger traffic channel capacity; In the aspect, the BCCH signal is sent by the inner circle cell, so that when the UE needs to switch from the outer circle cell to the inner circle cell, the signal strength of the inner circle cell can be known, the risk of blind call drop is avoided, and the service of the UE is guaranteed to operate normally. Through the description of the above embodiments, those skilled in the art can clearly understand that the present invention can be implemented by means of software plus necessary general hardware, and of course, by hardware, but in many cases, the former is a better implementation. . Based on such understanding, the technical solution of the present invention, which is essential or contributes to the prior art, may be embodied in the form of a software product stored in a readable storage medium, such as a floppy disk of a computer. , hard disk or CD, etc., including a number of instructions to make a computer device (can be a personal computer, a server, Or a network device or the like) performs the methods described in various embodiments of the present invention.

The above is only the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any change or replacement that can be easily conceived by those skilled in the art within the technical scope of the present invention is All should be covered by the scope of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

claims

1. A method for frequency division multiplexing of spectrum resources, characterized by: including:

An inner circle cell and an outer circle cell are determined in the first cell, the inner circle cell and the outer circle cell are both independent cells, the inner circle cell is a partial area of the first cell adjacent to the first base station, The outer circle cell is the first cell, and the first cell is any cell among multiple cells managed by the first base station;

Spectrum resources of the first cell are configured in the outer circle cell, and spectrum resources of the second cell are configured in the inner circle cell, where the second cell is any one of multiple cells managed by the second base station. cell, the second base station and the first base station are two base stations in a frequency reuse cluster.

2. The method according to claim 1, characterized in that determining the inner circle cell and the outer circle cell in the first cell includes:

An active antenna system AAS is configured at the base station, and the inner circle cell and the outer circle cell are determined in the first cell through the AAS; or

Dual antennas are configured at the base station, and the inner circle cells and outer circle cells are determined in the first cell through the dual antennas.

3. The method according to claim 1 or 2, characterized in that, after determining the inner circle cell and the outer circle cell in the first cell, it further includes:

The inner circle cell and the outer circle cell send broadcast control channel BCCH signals respectively, so that the signal strength of the inner circle cell is measured when the UE initiates a handover from the outer circle cell to the inner circle cell.

4. The method according to claim 1 or 2, characterized in that, after dividing the first cell into an inner circle cell and an outer circle cell, it further includes:

The broadcast control channel BCCH signal is transmitted only in the outer circle cells.

5. The method according to any one of claims 1 to 4, further comprising: determining the frequency reuse coefficient according to the quality and capacity requirements of the communication network;

The number of base stations in the frequency reuse cluster and the number of cells managed by each base station are determined according to the frequency reuse coefficient.

6. The method according to any one of claims 1 to 5, characterized in that, the method further includes: adjusting the downtilt angle of the inner circle cell antenna to adjust the range of the inner circle cell, thereby adjusting the inner circle cell antenna. The mutual interference between the circular cell and the outer circle cell is controlled.

7. A device for frequency division multiplexing of spectrum resources, characterized by including:

A processing unit configured to determine an inner circle cell and an outer circle cell in the first cell. The inner circle cell and the outer circle cell are both independent cells. The inner circle cell is the one adjacent to the first base station in the first cell. In a partial area, the outer circle cell is the first cell, and the first cell is any cell among multiple cells managed by the first base station;

A frequency reuse unit, configured to configure the spectrum resources of the first cell in the outer circle cell, and configure the spectrum resources of the second cell in the inner circle cell, wherein the second cell is managed by the second base station. In any cell among multiple cells, the second base station and the first base station are two base stations in a frequency reuse cluster.

8. The device according to claim 7, characterized in that the device includes an active antenna system AAS or dual antennas;

The processing unit is configured to determine the inner circle cell and the outer circle cell in the first cell through the AAS; or,

The processing unit is further configured to determine an inner circle cell and an outer circle cell in the first zone through the dual antennas.

9. The device according to claim 7 or 8, further comprising:

The first sending unit is configured to send broadcast control channel BCCH signals in the inner circle cell and the outer circle cell respectively, so that the UE can measure the signal strength of the inner circle cell when the UE initiates handover from the outer circle cell to the inner circle cell.

10. The device according to claim 7 or 8, further comprising:

The second sending unit is configured to send broadcast control channel BCCH signals only in the outer circle cells.

11. The device according to any one of claims 7 to 10, further comprising: a determining unit configured to determine the frequency reuse coefficient according to the quality and capacity requirements of the communication network, the The frequency reuse coefficient is used to determine the number of base stations in the frequency reuse cluster and the number of cells managed by each base station; the frequency reuse unit is specifically used to perform frequency reuse according to the frequency reuse coefficient determined by the determination unit.

12. The device according to any one of claims 7 to 11, characterized in that the device further includes:

The interference control unit is used to adjust the downtilt angle of the inner circle cell antenna to adjust the range of the inner circle cell, thereby controlling the mutual interference between the inner circle cell and the outer circle cell.

13. A base station, characterized by including:

A processor configured to determine an inner circle cell and an outer circle cell in the first cell. The inner circle cell and the outer circle cell are both independent cells. The inner circle cell is a cell adjacent to the first base station in the first cell. In a partial area, the outer circle cell is the first cell, and the first cell is any cell among multiple cells managed by the first base station;

The processor is further configured to configure the spectrum resources of the first cell in the outer circle cell, and configure the spectrum resources of the second cell in the inner circle cell, wherein the second cell is managed by the second base station. In any cell among multiple cells, the second base station and the first base station are two base stations in a frequency reuse cluster.

14. The base station according to claim 13, characterized in that, the base station further includes an active antenna system AAS or dual antennas;

The AAS is used for the processor to determine the inner circle cell and the outer circle cell in the first cell; or,

The dual antennas are used for the processing unit to determine an inner circle cell and an outer circle cell in the first cell.

15. The base station according to claim 13 or 14, further comprising:

The first transmitter is configured to send broadcast control channel BCCH signals to the inner circle cell and the outer circle cell respectively, so that when the UE initiates handover from the outer circle cell to the inner circle cell, the signal strength of the inner circle cell is measured.

16. The base station according to claim 13 or 14, further comprising: a second transmitter, configured to transmit a broadcast control channel BCCH signal only in the outer circle cell.

17. The base station according to any one of claims 13 to 16, further comprising: a planning platform, used to determine the frequency reuse coefficient according to the quality and capacity requirements of the communication network, the frequency reuse coefficient is To determine the number of base stations in the frequency reuse cluster and the number of cells managed by each base station; the processor is specifically configured to perform frequency reuse according to the frequency reuse coefficient determined by the planning platform.

18. The base station according to any one of claims 13 to 17, characterized in that the processor is also used to adjust the downtilt angle of the inner circle cell antenna to adjust the range of the inner circle cell, thereby adjusting the range of the inner circle cell. The mutual interference between the inner circle cells and the outer circle cells is controlled.

19. A communication system that performs frequency division multiplexing of spectrum resources, characterized in that it includes at least one frequency reuse cluster, and the frequency reuse cluster includes at least a first base station and a second base station, where:

The first base station is used to determine the inner circle cell and the outer circle cell in the first cell. The inner circle cell and the outer circle cell are both independent cells. The inner circle cell is the adjacent first cell in the first cell. A partial area of a base station, the outer circle cell is the first cell, and the first cell is any cell among multiple cells managed by the first base station;

The second base station is configured to configure spectrum resources for the second cell, and send the configuration information of the spectrum resources of the second cell to the first base station, so that the first base station configures the spectrum resources according to the configuration information. Spectrum resources of the second cell are allocated to the inner circle cell, wherein the second cell is any cell among multiple cells managed by the second base station;

The first base station is further configured to configure the spectrum resources of the first cell for the outer circle cell, and the first base station is further configured to configure the spectrum resources of the second cell for the inner circle cell according to the configuration information. spectrum resources.

20. The communication system according to claim 19, characterized in that the first base station includes an active antenna system AAS or dual antennas;

The AAS is used for the first base station to determine inner circle cells and outer circle cells in the first cell. district;

The dual antennas are used for the first base station to determine inner-circle cells and outer-circle cells in the first cell.

21. The communication system according to claim 19 or 20, characterized in that the first base station is configured to send broadcast control channel BCCH signals in the inner circle cell and the outer circle cell respectively, so that the UE can transmit signals from the outer circle cell to the outer circle cell. When initiating handover to an inner circle cell, the signal strength of the inner circle cell is measured.

22. The communication system according to claim 19 or 20, characterized in that the first base station is configured to send a broadcast control channel BCCH signal only in the outer circle cell.

23. The communication system according to any one of claims 19 to 22, further comprising: a planning platform, used to determine the frequency reuse coefficient according to the quality and capacity requirements of the communication network, the frequency reuse coefficient is Determining the number of base stations in the frequency reuse cluster and the number of cells managed by each base station; the communication system is used to perform frequency reuse according to the frequency reuse coefficient determined by the planning platform.

24. The communication system according to any one of claims 19 to 23, characterized in that the first base station is also used to adjust the downtilt angle of the inner circle cell antenna to adjust the range of the inner circle cell, thereby adjusting the range of the inner circle cell. Mutual interference between the inner circle cells and the outer circle cells is controlled.