Base station frequency resource allocation method and network device

Abstract

The invention discloses a base station frequency resource allocation method and aims to achieve reasonable allocation of base station frequency resources and avoid or lower inter-cell interference. The method includes that a cell is determined to conform to each basic frequency resource in each allowed operating frequency band of selectable operating bandwidth; frequency point priority coefficient of each basic frequency resource is determined, and the frequency point priority coefficient represents interference from each adjacent cell which neighbors the location of the cell with the cell in the basic frequency resource, and / or represents load of each adjacent cell in the basic frequency resource; the frequency resources are allocated to cells according to frequency point priority coefficients of the basic frequency resources. The invention further discloses a network device.

Description

technical field

[0001] The present invention relates to the field of communication technologies, and in particular, to a method for configuring frequency resources of a base station and a network device. Background technique

[0002] In a wireless communication system, signals are propagated through the wireless environment, and under the deployment of multiple access points (such as base stations in cellular networks, access points (Access Points, APs) in wireless local area network (WLAN) systems), if adjacent access points In most systems, adjacent cells will interfere with each other (such as Orthogonal Frequency Division Multiplexing (OFDM) systems and Code Division Multiple Access (CDMA) systems), resulting in spectrum resources. Can not be used effectively, reducing the transmission performance of the wireless system.

[0003] Taking the OFDM system as an example, the Long Term Evolution (LTE) system is the fourth generation (4G) wireless communication system based o...

Examples

specific Embodiment approach

[0060] In the first specific embodiment, for each adjacent cell, the first weighting factor a is calculated 1 The product of the load of the adjacent cell in the basic frequency resource, and the second weighting factor a 2 and the sum of the products of the interference of the adjacent cell to the cell in the basic frequency resource to obtain the single-cell frequency priority coefficient of each adjacent cell to the cell;

[0061] Calculate the weighted sum of the single-cell frequency priority coefficients of each adjacent cell to obtain the frequency priority coefficient I of the basic frequency resource Rseg .

[0062] In a specific implementation, the product of the single-cell frequency priority coefficient of each adjacent cell and the weight coefficient corresponding to the adjacent cell is calculated and summed to obtain the frequency priority coefficient I of the basic frequency resource. Rseg .

[0063] Among them, in the basic frequency resource, the single-ce...

no. 1 Embodiment

[0140] The first specific embodiment, as attached Image 6 As shown, the specific process of requesting the allocation of frequency resources for the newly opened cell by the base station is as follows:

[0141] In this specific embodiment, when the base station is powered on or the base station wants to activate a cell under the base station, it sends a request to the centralized node, and the centralized node allocates frequency resources for the newly opened cell.

[0142] Step 601: The base station establishes a connection with the network, and reports frequency point and bandwidth capability information to the centralized node.

[0143] Step 602: Optionally, if the centralized node can determine the basic information of the adjacent cell of the newly opened cell, it notifies the base station of the basic information of the adjacent cell, and the basic information of the adjacent cell is mainly the frequency point information of the adjacent cell. .

[0144] Step 603: Th...

specific Embodiment 6

[0225] Specific embodiment 6, the centralized node allocates frequency resources with the least interference and / or the least load to different cells. In this specific embodiment, the influence of the center frequency band is not considered, and frequency resources are allocated to the newly accessed cells according to the principle of the least interference within the bandwidth. .

[0226] For example, if the width of the basic frequency resource is 2.5MHz, to allocate a 5MHz bandwidth resource for the newly accessed cell, the frequency priority coefficients of the basic frequency resources Rseg1, Rseg2, and Rseg3 are IRseg1=0.2, IRseg2=0.2, IRseg3 respectively =0.3, adjacent cells have used frequency band resources (Rseg1+Rseg2) and frequency band resources (Rseg2+Rseg3), according to the principle of minimum interference and / or minimum load, regardless of whether the center frequency band overlaps, allocate frequency band resources for newly accessed cells (Rseg1+Rseg2).

...

technical field

[0001] The present invention relates to the field of communication technologies, and in particular, to a method for configuring frequency resources of a base station and a network device. Background technique

[0002] In a wireless communication system, signals are propagated through the wireless environment, and under the deployment of multiple access points (such as base stations in cellular networks, access points (Access Points, APs) in wireless local area network (WLAN) systems), if adjacent access points In most systems, adjacent cells will interfere with each other (such as Orthogonal Frequency Division Multiplexing (OFDM) systems and Code Division Multiple Access (CDMA) systems), resulting in spectrum resources. Can not be used effectively, reducing the transmission performance of the wireless system.

[0003] Taking the OFDM system as an example, the Long Term Evolution (LTE) system is the fourth generation (4G) wireless communication system based o...

Examples

specific Embodiment approach

[0060] In the first specific embodiment, for each adjacent cell, the first weighting factor a is calculated 1 The product of the load of the adjacent cell in the basic frequency resource, and the second weighting factor a 2 and the sum of the products of the interference of the adjacent cell to the cell in the basic frequency resource to obtain the single-cell frequency priority coefficient of each adjacent cell to the cell;

[0061] Calculate the weighted sum of the single-cell frequency priority coefficients of each adjacent cell to obtain the frequency priority coefficient I of the basic frequency resource Rseg .

[0062] In a specific implementation, the product of the single-cell frequency priority coefficient of each adjacent cell and the weight coefficient corresponding to the adjacent cell is calculated and summed to obtain the frequency priority coefficient I of the basic frequency resource. Rseg .

[0063] Among them, in the basic frequency resource, the single-ce...

no. 1 Embodiment

[0140] The first specific embodiment, as attached Image 6 As shown, the specific process of requesting the allocation of frequency resources for the newly opened cell by the base station is as follows:

[0141] In this specific embodiment, when the base station is powered on or the base station wants to activate a cell under the base station, it sends a request to the centralized node, and the centralized node allocates frequency resources for the newly opened cell.

[0142] Step 601: The base station establishes a connection with the network, and reports frequency point and bandwidth capability information to the centralized node.

[0143] Step 602: Optionally, if the centralized node can determine the basic information of the adjacent cell of the newly opened cell, it notifies the base station of the basic information of the adjacent cell, and the basic information of the adjacent cell is mainly the frequency point information of the adjacent cell. .

[0144] Step 603: Th...

specific Embodiment 6

[0225] Specific embodiment 6, the centralized node allocates frequency resources with the least interference and / or the least load to different cells. In this specific embodiment, the influence of the center frequency band is not considered, and frequency resources are allocated to the newly accessed cells according to the principle of the least interference within the bandwidth. .

[0226] For example, if the width of the basic frequency resource is 2.5MHz, to allocate a 5MHz bandwidth resource for the newly accessed cell, the frequency priority coefficients of the basic frequency resources Rseg1, Rseg2, and Rseg3 are IRseg1=0.2, IRseg2=0.2, IRseg3 respectively =0.3, adjacent cells have used frequency band resources (Rseg1+Rseg2) and frequency band resources (Rseg2+Rseg3), according to the principle of minimum interference and / or minimum load, regardless of whether the center frequency band overlaps, allocate frequency band resources for newly accessed cells (Rseg1+Rseg2).

...

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