CN103650564B

CN103650564B - The resource allocation methods and equipment of cell altogether

Info

Publication number: CN103650564B
Application number: CN201380000901.4A
Authority: CN
Inventors: 张岩强; 彭翔; 姚霈; 郇海滨; 耿海建
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2013-07-05
Filing date: 2013-07-05
Publication date: 2018-02-02
Anticipated expiration: 2033-07-05
Also published as: WO2015000178A1; CN103650564A

Abstract

The embodiment of the present invention provides a kind of resource allocation methods and equipment of cell altogether, and this method includes the sector in common cell being divided into N number of set of sectors, wherein, each set of sectors includes at least two sectors, and N is integer, and N >=2；When first terminal is from the access of the first sector of the first set of sectors in N number of set of sectors, the first channel resource allocation of first set of sectors will be distributed to the first terminal, wherein, first channel resource is different from the channel resource for distributing to other set of sectors in addition to first set of sectors in N number of set of sectors, and first channel resource has distributed to the second terminal in the second sector of first set of sectors, first sector is different from second sector.It can realize that synchronization, respectively from different terminal transmission datas, effectively improves the utilization rate of resource, lifting system capacity on the same channel resource of common cell.

Description

Method and equipment for distributing resources of shared cell

Technical Field

The embodiment of the invention relates to the technical field of communication, in particular to a method and equipment for allocating resources of a common cell.

Background

In order to perform networking in a narrow frequency band and solve the coverage problem, a common cell technology, such as a RRU (radio remote Unit) common cell technology or an Abis interface common cell technology, is commonly used in the industry. The common Cell technology is to combine a plurality of cells into a super Cell network, that is, a plurality of different cells (called "sectors" or "location groups") covering different areas are equivalent to one Cell (called "super cells" or "common cells") in terms of logical configuration, and the carrier frequency number and the CGI (Cell Global Identifier) and other parameter configurations of each sector in the common Cell are the same (the output power of the carrier can be finely adjusted).

In the prior art, all sectors in a common cell are completely synchronized, that is, all sectors in the same common cell transmit the same information in the same channel at the same time, and the carrier frequency occupied by the channel is called combined carrier frequency. For example, all idle Mobile terminals (Mobile Terminal) in the same common cell camp on the same BCCH (broadcast Control Channel) to monitor broadcast messages; or each sector sends the same data to the same terminal on the same Traffic Channel (TCH) at the same time, and the carrier frequencies occupied by the BCCH and the TCH are both combined carrier frequencies. Because each sector in the common cell adopts the same TCH channel to transmit services such as voice or data with only one terminal at the same time, the utilization rate of frequency spectrum resources is low, and the system capacity is reduced.

Disclosure of Invention

The embodiment of the invention provides a method and equipment for distributing resources of a common cell, which can improve the utilization rate of frequency spectrum resources and improve the system capacity.

In a first aspect, a method for allocating resources of a common cell is provided, where the method includes: dividing sectors in a common cell into N sector groups, wherein each sector group comprises at least two sectors, N is an integer and is more than or equal to 2; when a first terminal accesses from a first sector of a first sector group of the N sector groups, allocating a first channel resource allocated to the first sector group to the first terminal, wherein the first channel resource is different from a channel resource allocated to other sector groups of the N sector groups except the first sector group, and the first channel resource has been allocated to a second terminal within a second sector of the first sector group, the first sector being different from the second sector.

With reference to the first aspect, in another possible implementation manner, after the dividing the sectors in the common cell into N sector groups, the method further includes: allocating different channel resources for each sector group in the N sector groups; wherein the channel resources allocated to the first group of sectors comprise the first channel resources.

With reference to the first aspect, with reference to any one of the foregoing implementation manners, in another implementation manner, the allocating the first channel resource allocated to the first sector group to the first terminal includes: and under the condition that the number of the currently idle channel resources in the channel resources allocated to the first sector group meets a first preset condition, allocating the first channel resource to the first terminal.

With reference to the first aspect, with reference to any one of the foregoing implementation manners, in another implementation manner, when the number of currently idle available channel resources in the channel resources allocated to the first sector group does not satisfy the first preset condition, allocating currently idle second channel resources to the first terminal, where the channel resources allocated to the first sector group include the second channel resources.

With reference to the first aspect, with reference to any one of the foregoing implementation manners, in another implementation manner, the allocating the first channel resource allocated to the first sector group to the first terminal includes: and under the condition that the number of the current idle channel resources in the channel resources of the common cell meets a second preset condition, allocating the first channel resources to the first terminal.

With reference to the first aspect, with reference to any one of the foregoing implementation manners, in another implementation manner, when the number of currently idle channel resources in the channel resources of the co-cell does not satisfy the second preset condition, allocating currently idle second channel resources of the co-cell to the first sector group, and allocating the second channel resources to the first terminal.

With reference to the first aspect, with reference to any one of the foregoing implementation manners, in another implementation manner, when the first terminal stops using the first channel resource and the first channel resource is not used by other terminals, the first channel resource is set as a currently idle channel resource.

With reference to the first aspect, with reference to any one of the foregoing implementation manners, in another implementation manner, interference between any two sectors in each sector group is smaller than an interference threshold.

With reference to the first aspect, with reference to any one of the foregoing implementation manners, in another implementation manner, the dividing the sectors in the common cell into N sector groups includes: dividing the sectors in the common cell into the N sector groups according to the interference among the sectors in the common cell, the distance among the sectors or the coverage area of the sectors; or dividing the sectors in the common cell into the N sector groups according to the interference between the sectors in the common cell, the distance between the sectors, or the coverage of each sector, and a preset channel resource multiplexing degree.

In a second aspect, a network-side device is provided, where the network-side device includes: the dividing unit is used for dividing the sectors in the common cell into N sector groups, wherein each sector group comprises at least two sectors, N is an integer and is more than or equal to 2; and an allocating unit, configured to allocate, when a first terminal accesses from a first sector of a first sector group of the N sector groups divided by the dividing unit, a first channel resource allocated to the first sector group to the first terminal, where the first channel resource is different from a channel resource allocated to another sector group of the N sector groups except the first sector group, and the first channel resource has been allocated to a second terminal in a second sector of the first sector group, and the first sector is different from the second sector.

With reference to the second aspect, in another possible implementation manner, the allocating unit is further configured to: allocating different channel resources for each sector group in the N sector groups divided by the dividing unit; wherein the channel resources allocated to the first group of sectors by the allocation unit include the first channel resources.

With reference to the second aspect, with reference to any one of the foregoing implementation manners, in another implementation manner, the allocating unit is specifically configured to: and under the condition that the number of the currently idle channel resources in the channel resources allocated to the first sector group meets a first preset condition, allocating the first channel resource to the first terminal.

With reference to the second aspect, with reference to any one of the foregoing implementation manners, in another implementation manner, the allocating unit is specifically configured to: and on the condition that the number of the currently idle available channel resources in the channel resources allocated to the first sector group does not meet the first preset condition, allocating currently idle second channel resources to the first terminal, wherein the channel resources allocated to the first sector group comprise the second channel resources.

With reference to the second aspect, in combination with any one of the foregoing implementation manners, in another implementation manner, the allocating unit is further configured to: and under the condition that the number of the current idle channel resources in the channel resources of the common cell meets a second preset condition, allocating the first channel resources to the first terminal.

With reference to the second aspect, with reference to any one of the foregoing implementation manners, in another implementation manner, the allocating unit is specifically configured to: and under the condition that the number of the currently idle channel resources in the channel resources of the common cell does not meet the second preset condition, allocating the currently idle second channel resources of the common cell to the first sector group, and allocating the second channel resources to the first terminal.

With reference to the second aspect, in combination with any one of the foregoing implementation manners, in another implementation manner, the network side device further includes a setting unit, where the setting unit is configured to set the first channel resource as a currently idle channel resource when the first terminal stops using the first channel resource and the first channel resource is not used by another terminal.

With reference to the second aspect, with reference to any one of the foregoing implementation manners, in another implementation manner, interference between any two sectors in each sector group divided by the dividing unit is smaller than an interference threshold.

With reference to the second aspect, with reference to any one of the foregoing implementation manners, in another implementation manner, the dividing unit is specifically configured to: dividing the sectors in the common cell into the N sector groups according to the interference among the sectors in the common cell, the distance among the sectors or the coverage area of the sectors; or dividing the sectors in the common cell into the N sector groups according to the interference between the sectors in the common cell, the distance between the sectors, or the coverage of each sector, and a preset channel resource multiplexing degree.

The sector in the common cell is divided into N sector groups, wherein each sector group comprises at least two sectors, N is an integer and is more than or equal to 2; when a first terminal accesses from a first sector of a first sector group of the N sector groups, a first channel resource allocated to the first sector group is allocated to the first terminal, the first channel resource having been allocated to a second terminal in a second sector of the first sector group, the first sector being different from the second sector. Because the terminals in different sectors of the same sector group share the same channel resource, the data can be transmitted with different terminals on the same channel resource of the same cell at the same time, the utilization rate of the resource is effectively improved, and the system capacity is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a flowchart of a method for allocating resources of a co-cell according to an embodiment of the present invention.

Fig. 2 is a flowchart of a method for allocating resources of a co-cell according to an embodiment of the present invention.

Fig. 3 is a diagram illustrating resource allocation of a co-cell according to an embodiment of the present invention.

Fig. 4 is a block diagram of a network device according to an embodiment of the present invention.

Fig. 5 is a block diagram of a network-side device according to another embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Fig. 1 is a schematic diagram of a co-cell scenario applicable to an embodiment of the present invention. One is depicted in fig. 1, where a common cell includes 4 base stations, respectively base station 110, base station 120, base station 130, and base station 140, each of which includes 3 sectors (also referred to as location groups), e.g., base station 140 includes sector D, sector E, and sector F. It should be understood that the number of co-cells, the number of base stations included in a co-cell, the number of sectors included in a base station, and the like in the scenario of fig. 1 are merely exemplary, and the embodiment of the present invention is not limited thereto. For example, a common cell may include one or more base stations, and a base station may include two or four sectors.

In the prior art, at the same time, each sector in the common cell adopts the same channel to transmit services such as voice or data with one terminal. For example, in the scenario of fig. 1, 4 base stations form a common cell, and 12 sectors in the common cell can only transmit the same data on the same channel (the same channel resource) at the same time, that is, only one terminal transmits traffic data. That is, the capacity of the common cell including 12 sectors is equivalent to the capacity of 1 sector. Therefore, the utilization rate of the frequency spectrum resources is low, and the system capacity is reduced.

In order to solve the above problem, embodiments of the present invention provide a method and a device for allocating resources of a common cell, which can effectively improve the utilization rate of spectrum resources and improve the system capacity.

In the embodiment of the invention, all sectors in the same common cell broadcast the same message on the same BCCH at the same time, the frequency point occupied by the BCCH is the carrier frequency occupied by the main B, the service channel on the carrier frequency of the main B, such as TCH, is completely synchronous in all sectors in the common cell, that is, all sectors send the same data on the same TCH channel at the same time; traffic channels on non-primary B carrier frequencies, such as TCH's, may be independent for each sector within a common cell. For example, different sectors may transmit data with different terminals respectively on the same TCH channel (the same channel resource) at the same time; alternatively, different sectors may transmit data with different terminals on different TCH channels (different channel resources) at the same time. The independent non-primary B carrier frequency of each sector in the common cell may be all non-primary B carrier frequencies in the common cell, or may be a part of non-primary B carrier frequencies. And so on. It is to be understood that the embodiments of the present invention are not limited thereto.

Fig. 2 is a flowchart of a method for allocating resources of a co-cell according to an embodiment of the present invention. The method of fig. 2 is performed by a network side device (e.g., a BSC (Base Station Controller)).

And 201, dividing the sectors in the common cell into N sector groups, wherein each sector group comprises at least two sectors, N is an integer and is more than or equal to 2.

Specifically, the sectors in the common cell may be divided into N sector groups according to interference between the sectors in the common cell; the sectors in the common cell may also be divided into N sector groups according to interference between sectors in the common cell and a preset channel resource multiplexing degree, which is not limited herein. The channel resource multiplexing degree refers to the number of terminals that can multiplex one channel resource at most.

Wherein, the interference between any two sectors in each sector group can be smaller than the interference threshold; or the distance between any two sectors in each sector group is larger than a preset distance threshold; alternatively, the number of sectors in a particular region for each group of sectors is less than a preset number threshold. The interference may be obtained through the path loss of the signal, and belongs to the prior art, which is not described herein again; the interference threshold value may be preset in the network side device, or may be configured to the network side device through the input device, and modified according to the user requirement.

202, when a first terminal accesses from a first sector of a first sector group of the N sector groups, allocating a first channel resource allocated to the first sector group to the first terminal, wherein the first channel resource is different from a channel resource allocated to the other sector group except the first sector group of the N sector groups, and the first channel resource has been allocated to a second terminal in a second sector of the first sector group, the first sector being different from the second sector.

Wherein, the channel resource can be indicated by frequency point and time slot; the frequency point is a frequency point of a common cell, and the time slot can be a time slot, and can also be a time slot and a sub-time slot. For example, assuming that the frequency point of carrier 1 in each sector where the common cell is located is F1, and two channels are located in slot 0 of carrier 1, and are located in sub-slot 0 and sub-slot 1, respectively, frequency point F1, slot 0, and sub-slot 1 indicate channels in slot 0 and sub-slot 1 of carrier 1 where frequency point F1 is located.

It should be noted that, when the network side device allocates a certain channel resource to a certain sector group, it indicates that the channel indicated by the certain channel resource is available in each sector in the certain sector group. In general, in order to ensure the access of the terminal in the common cell, the network side device only allocates the channel resources on the non-BCCH carrier frequency in the common cell to each sector group, which may specifically adopt a static allocation manner or a dynamic allocation manner.

In step 202, the first terminal and the second terminal in different sectors of the same sector group share the same channel resource, that is, channel resource multiplexing is performed, so that data transmission with different terminals on the same channel resource of the same cell at the same time is realized, the utilization rate of resources is effectively improved, and the system capacity is improved.

The sector in the common cell is divided into N sector groups, wherein each sector group comprises at least two sectors, N is an integer and is more than or equal to 2; when a first terminal accesses from a first sector of a first sector group of the N sector groups, a first channel resource allocated to the first sector group is allocated to the first terminal, the first channel resource having been allocated to a second terminal in a second sector of the first sector group, the first sector being different from the second sector. Because the terminals in different sectors in the same sector group share the same channel resource, the data can be respectively transmitted with different terminals on the same channel resource of the same cell at the same moment, the utilization rate of the resource is effectively improved, and the system capacity is improved; in addition, the first channel resource is different from the channel resources allocated to other sector groups except the first sector group in the N sector groups, so that strong interference caused by the fact that the sectors in different sector groups use the same channel resource when the sectors are adjacent to each other can be avoided, and the service quality can be guaranteed.

Optionally, as an embodiment, in step 201, the sector group may be divided according to the closeness degree of the sectors based on the spatial division manner. The closeness degree between sectors can be embodied in that the distance between any two sectors in the same sector group is larger than a preset distance threshold or the number of sectors in a specific area of the same sector group is smaller than a preset number threshold.

In step 201, the sectors in the common cell are divided into N sector groups, and the following embodiment may be specifically adopted:

the first method is to divide the sectors in the common cell into N sector groups according to the interference among the sectors in the common cell, the distance among the sectors or the coverage area of the sectors.

Specifically, dividing according to the interference between sectors in a common cell, so that the interference of any two sectors in each sector group is smaller than an interference threshold; dividing according to the distance between all sectors in the common cell, so that the distance between any two sectors in each sector group is larger than a preset distance threshold; and dividing according to the coverage range among the sectors in the common cell, so that the number of the sectors in a specific area of each sector group is less than a preset number threshold.

And secondly, dividing the sectors in the common cell into N sector groups according to the interference among the sectors in the common cell, the distance between the sectors or the coverage of the sectors and the preset channel resource multiplexing degree.

The first mode enables the interference between any two sectors in each sector group to be small enough, so that the interference is effectively controlled; in the second mode, when the sector group is divided, the interference among the sectors in the sector group and the reuse degree of channel resources are comprehensively referred, so that the interference control is realized, and simultaneously the system capacity is ensured to be improved. It should be understood that the partition manner of the sector group in the embodiment of the present invention is not limited.

Taking the scenario of fig. 1 as an example, based on a spatial division manner of 1 × 3, namely, the sectors of the common cell may be divided into 3 sector groups, and it is assumed that the divided 3 sector groups are sector group No. 0, sector group No. 1, and sector group No. 2, respectively. The distance between any two sectors in the same sector group is larger than a preset distance threshold value, so that adjacent sectors do not belong to the same sector group, and the sector group 0 comprises a sector E, a sector A, a sector C and a sector H; sector group 1 includes sector D, sector I, sector J, and sector L; and sector group 2 includes sector F, sector B, sector G, and sector K.

For another example, the sectors of the common cell may be divided into 6 sector groups based on a 2 × 3 spatial division manner. For example, sector group No. 0 includes sector F and sector J, sector group No. 1 includes sector C and sector K, sector group No. 2 includes sector E and sector B, sector group No. 3 includes sector D and sector H, sector group No. 4 includes sector a and sector L, and sector group No. 5 includes sector I and sector G. That is, the number of sectors in a specific area of the same sector group is reduced compared to the spatial division of 1 × 3.

It should be understood that the above examples are merely exemplary in the number of divided sector groups and the division manner of the sector groups, etc., and are not intended to limit the scope of the present invention.

Based on space division, the sector groups are divided through the tightness degree among the sectors, the distance among the sectors in the same sector group is larger than a certain distance threshold value or the number of the sectors in a specific area of the same sector group is reduced, so that the interference between any two sectors in each sector group is small enough, and therefore when the same channel resources of different sectors in the same sector group are used by different terminals at the same time, the interference of each sector in the same sector group is small enough, namely, the resources are shared by a plurality of terminals, the system capacity is improved, the interference can be effectively controlled, and the service quality is ensured.

Optionally, as another embodiment, after step 201, different channel resources may be allocated to each sector group in the N sector groups. Wherein the channel resources allocated to the first group of sectors comprise first channel resources.

As an example, the common cell sector in the scenario of fig. 1 is divided into 3 sector groups based on 1 × 3, and it is assumed that the scenario of fig. 1 employs 4 frequency point networks, namely frequency points f1, f2, f3, and f4, and each frequency point includes 8 time slots (time slots 0-7). Assuming that the frequency point occupied by the main B is f 1; the frequency bins of the non-primary B carrier frequency are frequency bins f2, f3, and f4, as shown in fig. 3. Channel resources on a frequency point of a non-main B carrier frequency can be allocated to 3 divided sector groups, for example, channel resources of time slots 0-4 on a frequency point f2 and channel resources of time slots 0-2 on a frequency point f3 are allocated to sector group number 0; allocating channel resources of time slots 3-7 on a frequency point f3 to a sector group No. 1; and allocating the channel resources of time slots 0-7 on frequency point f4 to sector number 2.

It should be understood that the above examples are illustrative only and are not intended to limit the scope of the present invention. For example, different sector groups in the embodiment of the present invention may use the same or different frequency points, and the number of channel resources in different sector groups may be the same or different.

Alternatively, in step 202, in the case that a currently idle channel resource among channel resources allocated to the first sector group satisfies a first preset condition, the first channel resource may be allocated to the first terminal. That is, the resources are multiplexed, and the first terminal and the second terminal share the first channel resource.

Specifically, the first preset condition may be that the number of currently idle channel resources among channel resources allocated to the first sector group is greater than a certain number threshold, or that a ratio of the number of currently idle channel resources among channel resources allocated to the first sector group to the number of channel resources allocated to the first sector group is greater than a certain ratio threshold.

By the scheme, the terminals in different sectors of the same sector group share the same channel resource, so that the common cell can transmit data with different terminals at the same time, the utilization rate of the resource is effectively improved, and the system capacity is improved.

Optionally, the method further includes:

in the case that the currently idle available channel resource among the channel resources allocated to the first sector group does not satisfy the first preset condition, the currently idle second channel resource among the channel resources allocated to the first sector group may be allocated to the first terminal. Therefore, the idle channel resources in the first sector group can be preferentially distributed to the terminal, so that the interference is effectively reduced, and the service quality is further improved.

For example, the sector in which the first terminal is located is sector a, sector a belongs to sector group 0, and the channel resource allocated to sector group 0 is the channel resource of time slots 3-7 on frequency point f 3. Suppose that the currently idle channel resource has time slots 3-6 on frequency point f3, and the occupied channel resource is frequency point f3 time slot 7. When the first terminal accesses from sector a, optionally, in a case that it is determined that currently idle channel resources in the channel resources allocated to sector group 0 do not satisfy a first preset condition (for example, the ratio threshold is 50%), the currently idle channel resources (for example, frequency point f3 time slot 3) may be selected to be allocated to the first terminal. Or, it is assumed that the currently idle channel resource has time slots 3-4 on frequency point f3, and the occupied channel resource has time slots 5-7 on frequency point f3, where the channel resource occupied by the second terminal is frequency point f3 time slot 6. When the first terminal accesses from the sector a, optionally, under the condition that it is determined that currently idle channel resources in the channel resources allocated to the sector group 0 satisfy the first preset condition, it may be determined whether the first terminal and the second terminal are in the same sector, and if the first terminal and the second terminal are in different sectors, the time slot 6 on the frequency point f3 may also be allocated to the first terminal, so that resource sharing in the group may be achieved.

In addition, when the first terminal stops using the first channel resource, at this time, the first channel resource is not used by other terminals, and the first channel resource may be set as a currently idle channel resource of the common cell.

Optionally, as another embodiment, in step 202, in a case that a currently idle channel resource among the channel resources of the co-cell satisfies a second preset condition, the first channel resource may be allocated to the first terminal. That is, the resources are multiplexed, and the first terminal and the second terminal share the first channel resource.

Specifically, the second preset condition may be that the number of currently idle channel resources in the channel resources of the common cell is greater than a certain number threshold, or that a ratio of the number of currently idle channel resources in the channel resources of the common cell to the number of channel resources of the common cell is greater than a certain ratio threshold.

Optionally, the method further includes:

when the currently idle channel resource in the channel resources of the common cell does not satisfy the second preset condition, the currently idle second channel resource of the common cell may be allocated to the first sector group, and the second channel resource may be allocated to the first terminal. Therefore, the idle channel resources of the common cell can be preferentially distributed to the terminal, so that the interference is effectively reduced, and the service quality is further improved.

Taking the above-mentioned division of the common cell sector in the scene of fig. 1 into 3 sector groups based on 1 × 3 space as an example, as shown in fig. 3, the main B uses the channel resource of the frequency point f1 time slot 0, that is, the frequency point occupied by the main B is f1, the frequency points of the non-main B carrier frequency are frequency points f2, f3 and f4, each frequency point has 8 time slots (time slots 0-7), it is assumed that the sector where the second terminal is located is the sector D, the sector group to which the second terminal belongs is the sector group No. 1, the channel resource currently occupied by the second terminal is the frequency point f4 time slot 2, and meanwhile, that is, the frequency point f4 time slot 2 is allocated to the sector group No. 1. When the first terminal accesses from sector D, if the sector where the first terminal is located is sector I, the sector group to which the first terminal belongs is also sector group No. 1, that is, the sector where the second terminal and the first terminal are located are different but belong to the same sector group, optionally, frequency point f4 time slot 2 may be allocated to the first terminal, and the first terminal and the second terminal share the channel resource. Further, under the condition that it is determined that the number of currently idle channel resources in the channel resources of the common cell satisfies the second preset condition, the frequency point f4 time slot 2 may be allocated to the first terminal. Of course, other currently idle channel resources may also be considered, such as selecting a currently idle second channel resource: frequency point f2 time slot 3 is allocated to the first terminal. Accordingly, that is, frequency point f2 time slot 3 is allocated to sector group 1, and frequency point f2 time slot 3 also belongs to the channel resources of sector group 1. Further, the second channel resource that is currently idle may be allocated to the first terminal when it is determined that the number of currently idle channel resources in the channel resources of the common cell does not satisfy the second preset condition.

In addition, when the accessed terminal stops using the originally occupied channel resource (such as service end), the channel resource is set to be the current idle channel resource correspondingly. That is, the channel resources allocated to each sector group are not constant but vary according to the access situation of the terminal. At one time, more channel resources are allocated to a certain sector group, and at another time, more channel resources may be allocated to other sector groups. As in the above example, at a certain time, when the first terminal stops using the first channel resource, at this time, the first channel resource is not used by other terminals, the first channel resource may be set as a currently idle channel resource of the co-cell, that is, the first channel resource allocated to the first sector group is received back into the idle channel resource pool of the co-cell, so as to be dynamically allocated to a certain sector group accessed by a terminal in the following.

The embodiment of the invention dynamically allocates the channel resources of the non-main B carrier frequency to the divided sector groups according to the access resources of the terminal, can improve the flexibility of resource allocation and effectively improves the utilization rate of the resources. In addition, a plurality of terminals in different sectors and the same sector group can share channel resources, and the interference between different sectors in the same sector group is small enough, so that the interference between sectors is effectively controlled, the utilization rate of resources is greatly improved, and the system capacity is improved.

Fig. 4 is a block diagram of a network device according to an embodiment of the present invention. The network side device may be a base station or a base station controller, such as a BSC. The network-side device 400 includes a dividing unit 401 and an allocating unit 402.

A dividing unit 401, configured to divide the sectors in the common cell into N sector groups, where each sector group includes at least two sectors, N is an integer and N is greater than or equal to 2.

An allocating unit 402, configured to allocate, when a first terminal accesses from a first sector of a first sector group of the N sector groups divided by the dividing unit 401, a first channel resource allocated to the first sector group to the first terminal, where the first channel resource is different from a channel resource allocated to another sector group of the N sector groups except the first sector group, and the first channel resource has been allocated to a second terminal in a second sector of the first sector group, and the first sector is different from the second sector.

Optionally, the dividing unit 401 is specifically configured to: the sectors in the common cell can be divided into N sector groups according to the interference among the sectors in the common cell; the sectors in the common cell may also be divided into N sector groups according to interference between sectors in the common cell and a preset channel resource multiplexing degree, which is not limited herein. The channel resource multiplexing degree refers to the number of terminals that can multiplex one channel resource at most.

The interference between any two sectors in each sector group divided by the dividing unit 401 may be smaller than an interference threshold; or the distance between any two sectors in each sector group is larger than a preset distance threshold; alternatively, the number of sectors in a particular region for each group of sectors is less than a preset number threshold. The interference may be obtained through the path loss of the signal, and belongs to the prior art, which is not described herein again; the interference threshold value may be preset in the network side device, or may be configured to the network side device through the input device, and modified according to the user requirement.

It should be noted that when allocation unit 402 allocates a certain channel resource to a certain sector group, it indicates that the channel indicated by the certain channel resource is available in each sector in the certain sector group. In general, to ensure the access of the terminals in the common cell, the allocating unit 402 allocates only the channel resources on the non-BCCH carrier frequency in the common cell to each sector group, which may specifically adopt a static allocation manner or a dynamic allocation manner.

The network side device 400 may implement the operations related to the network side device in the embodiments of fig. 2 to 3, and thus, in order to avoid repetition, will not be described in detail.

Optionally, as an embodiment, the dividing unit 401 is specifically configured to:

dividing the sectors in the common cell into N sector groups according to the interference among the sectors in the common cell, the distance among the sectors or the coverage area of the sectors; or,

and dividing the sectors in the common cell into the N sector groups according to the interference among the sectors in the common cell, the distance among the sectors or the coverage of each sector and the preset channel resource multiplexing degree.

Specifically, the sector group may be divided according to the closeness between sectors based on a spatial division manner. The closeness degree between sectors can be embodied in that the distance between any two sectors in the same sector group is larger than a preset distance threshold or the number of sectors in a specific area of the same sector group is smaller than a preset number threshold. Reference may be made to the embodiment shown in fig. 2, which is not described herein again.

Optionally, as another embodiment, the allocating unit 402 may further be configured to: different channel resources are allocated to each of the N sector groups divided by the dividing unit 401. Wherein the channel resource allocated to the first sector group by the allocation unit 402 includes a first channel resource.

Optionally, the allocating unit 402 is specifically configured to: in case that a currently idle channel resource among channel resources allocated to the first sector group satisfies a first preset condition, the first channel resource may be allocated to the first terminal. That is, the resources are multiplexed, and the first terminal and the second terminal share the first channel resource.

Optionally, the allocating unit 402 is specifically configured to: in the case that the currently idle available channel resource among the channel resources allocated to the first sector group does not satisfy the first preset condition, the currently idle second channel resource among the channel resources allocated to the first sector group may be allocated to the first terminal. Therefore, the idle channel resources in the first sector group can be preferentially distributed to the terminal, so that the interference is effectively reduced, and the service quality is further improved.

Optionally, as another embodiment, the allocating unit 402 may further be configured to: the first channel resource may be allocated to the first terminal when a currently idle channel resource among the channel resources of the common cell satisfies a second preset condition. That is, the resources are multiplexed, and the first terminal and the second terminal share the first channel resource.

Optionally, the allocating unit 402 is specifically configured to: when the currently idle channel resource in the channel resources of the common cell does not satisfy the second preset condition, the currently idle second channel resource of the common cell may be allocated to the first sector group, and the second channel resource may be allocated to the first terminal. Therefore, the idle channel resources of the common cell can be preferentially distributed to the terminal, so that the interference is effectively reduced, and the service quality is further improved.

Optionally, as another embodiment, the network-side device 400 may further include a setting unit 403. A setting unit 403, configured to set the first channel resource as a currently idle channel resource when the first terminal stops using the first channel resource and the first channel resource is not used by other terminals.

That is, the channel resources allocated by the allocation unit 402 for each sector group are not constant, but vary according to the access situation of the terminal. At one time, the allocating unit 402 allocates more channel resources to a certain sector group, and at another time, the allocating unit 402 may allocate more channel resources to other sector groups. As in the above example, at a certain time, when the first terminal stops using the first channel resource, and at this time, the first channel resource is not used by other terminals, the setting unit 403 may be configured to set the first channel resource as a currently idle channel resource of the co-cell, that is, to recycle the first channel resource allocated to the first sector group into the idle channel resource pool of the co-cell, so as to dynamically allocate the first channel resource to a certain sector group accessed by a terminal in the following.

Fig. 5 is a block diagram of a network-side device according to another embodiment of the present invention. The network side device 500 includes an input device 501, an output device 504, a processor 502, and a memory 503. The processor 502 and the memory 503 are coupled together by a bus system 505, wherein the bus system 505 comprises a power bus, a control bus and a status signal bus in addition to a data bus. For clarity of illustration, however, the various buses are labeled in the figure as bus system 505.

The processor 502 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be performed by integrated logic circuits of hardware or instructions in the form of software in the processor 502. The Processor 502 may be a general-purpose Processor including a CPU (Central Processing Unit), an NP (Network Processor), and the like; but also a DSP (Digital Signal Processing), an ASIC (Application Specific Integrated Circuit), an FPGA (Field Programmable Gate Array) or other Programmable logic device, discrete Gate or transistor logic device, discrete hardware component. The various methods, steps and logic blocks disclosed in the embodiments of the present invention may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

Memory 503 may include both read-only memory and random-access memory, and provides instructions and data to processor 502. A portion of the memory 503 may also include non-volatile random access memory (NVRAM).

The memory 503 stores the following elements, executable modules or data structures, or a subset thereof, or an expanded set thereof:

and (3) operating instructions: including various operational instructions for performing various operations.

Operating the system: including various system programs for implementing various basic services and for handling hardware-based tasks.

In the embodiment of the present invention, the processor 502 performs the following operations by calling an operation instruction (which may be stored in an operating system) stored in the memory 503:

a processor 502 configured to divide sectors in a common cell into N sector groups, where each sector group includes at least two sectors, N is an integer and N ≧ 2.

A processor 502, further configured to allocate a first channel resource allocated to a first sector group of the N divided sector groups to the first terminal when the first terminal accesses from the first sector, wherein the first channel resource is different from a channel resource allocated to other sector groups of the N sector groups except the first sector group, and the first channel resource has been allocated to a second terminal in a second sector of the first sector group, and the first sector is different from the second sector.

Optionally, the processor 502 is specifically configured to: the sectors in the common cell can be divided into N sector groups according to the interference among the sectors in the common cell; the sectors in the common cell may also be divided into N sector groups according to interference between sectors in the common cell and a preset channel resource multiplexing degree, which is not limited herein. The channel resource multiplexing degree refers to the number of terminals that can multiplex one channel resource at most.

Wherein, the interference between any two sectors in each sector group divided by the processor 502 may be smaller than the interference threshold; or the distance between any two sectors in each sector group is larger than a preset distance threshold; alternatively, the number of sectors in a particular region for each group of sectors is less than a preset number threshold. The interference may be obtained through the path loss of the signal, and belongs to the prior art, which is not described herein again; the interference threshold value may be preset in the network side device, or may be configured to the network side device through the input device, and modified according to the user requirement.

It is noted that when processor 502 allocates a certain channel resource to a certain sector group, it indicates that the channel indicated by the certain channel resource is available in each sector in the certain sector group. In general, in order to ensure the access of the terminals in the common cell, the processor 502 only allocates the channel resources on the non-BCCH carrier frequency in the common cell to each sector group, which may specifically adopt a static allocation manner or a dynamic allocation manner.

The network side device 500 may implement the operations in the embodiments of fig. 2 to 3, and thus, in order to avoid repetition, will not be described in detail.

Optionally, as an embodiment, the processor 502 may be specifically configured to:

and dividing the sectors in the common cell into N sector groups according to the interference among the sectors in the common cell, the distance among the sectors or the coverage of each sector and the preset channel resource multiplexing degree.

Optionally, as another embodiment, the processor 502 is specifically configured to allocate different channel resources to each sector group in the divided N sector groups. Wherein the channel resources allocated by the processor 502 to the first group of sectors comprise first channel resources.

Optionally, the processor 502 is specifically configured to: in case that a currently idle channel resource among channel resources allocated to the first sector group satisfies a first preset condition, the first channel resource may be allocated to the first terminal. That is, the resources are multiplexed, and the first terminal and the second terminal share the first channel resource.

Optionally, the processor 502 is specifically configured to: in the case that the currently idle available channel resource among the channel resources allocated to the first sector group does not satisfy the first preset condition, the currently idle second channel resource among the channel resources allocated to the first sector group may be allocated to the first terminal. Therefore, the idle channel resources in the first sector group can be preferentially distributed to the terminal, so that the interference is effectively reduced, and the service quality is further improved.

Optionally, as another embodiment, the processor 502 may be further configured to: the first channel resource may be allocated to the first terminal when a currently idle channel resource among the channel resources of the common cell satisfies a second preset condition. That is, the resources are multiplexed, and the first terminal and the second terminal share the first channel resource.

Optionally, the processor 502 is specifically configured to: when the currently idle channel resource in the channel resources of the common cell does not satisfy the second preset condition, the currently idle second channel resource of the common cell may be allocated to the first sector group, and the second channel resource may be allocated to the first terminal. Therefore, the idle channel resources of the common cell can be preferentially distributed to the terminal, so that the interference is effectively reduced, and the service quality is further improved.

Optionally, as another embodiment, the processor 502 may be further configured to: and when the first terminal stops using the first channel resource and the first channel resource is not used by other terminals, setting the first channel resource as the current idle channel resource.

That is, the channel resources allocated by the processor 502 for each sector group are not constant, but vary according to the access situation of the terminal. At one time, processor 502 may allocate more channel resources for a certain sector group and at another time, processor 502 may allocate more channel resources for other sector groups. As in the above example, at a certain time, when the first terminal stops using the first channel resource, and at this time, the first channel resource is not used by other terminals, the processor 502 may be configured to set the first channel resource as a currently idle channel resource of the co-cell, that is, to recycle the first channel resource allocated to the first sector group into the idle channel resource pool of the co-cell, so as to dynamically allocate the first channel resource to a certain sector group accessed by a terminal in the following.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A method for allocating resources of a common cell, comprising:

dividing the sectors in the common cell into N sector groups according to the interference among the sectors in the common cell, the distance among the sectors or the coverage of the sectors, wherein each sector group comprises at least two sectors, N is an integer and is more than or equal to 2;

when a first terminal accesses from a first sector of a first sector group of the N sector groups, allocating a first channel resource allocated to the first sector group to the first terminal, wherein the first channel resource is different from a channel resource allocated to other sector groups of the N sector groups except the first sector group, and the first channel resource has been allocated to a second terminal within a second sector of the first sector group, the first sector being different from the second sector.

2. The method of claim 1, wherein after the dividing the sectors in the common cell into N sector groups, the method further comprises:

allocating different channel resources for each sector group in the N sector groups;

wherein the channel resources allocated to the first group of sectors comprise the first channel resources.

3. The method of claim 2, wherein the allocating the first channel resources allocated to the first group of sectors to the first terminal comprises:

and under the condition that the number of the currently idle channel resources in the channel resources allocated to the first sector group meets a first preset condition, allocating the first channel resource to the first terminal.

4. The method of claim 3, further comprising:

and on the condition that the number of the currently idle available channel resources in the channel resources allocated to the first sector group does not meet the first preset condition, allocating currently idle second channel resources to the first terminal, wherein the channel resources allocated to the first sector group comprise the second channel resources.

5. The method of claim 1, wherein the allocating the first channel resources allocated to the first group of sectors to the first terminal comprises:

and under the condition that the number of the current idle channel resources in the channel resources of the common cell meets a second preset condition, allocating the first channel resources to the first terminal.

6. The method of claim 5, further comprising:

and under the condition that the number of the currently idle channel resources in the channel resources of the common cell does not meet the second preset condition, allocating the currently idle second channel resources of the common cell to the first sector group, and allocating the second channel resources to the first terminal.

7. The method of claim 1, further comprising:

and when the first terminal stops using the first channel resource and the first channel resource is not used by other terminals, setting the first channel resource as the current idle channel resource.

8. The method of claim 1, wherein interference between any two sectors in each sector group is less than an interference threshold.

9. The method according to any of claims 1-8, wherein the dividing the sectors in the common cell into N sector groups comprises:

and dividing the sectors in the common cell into the N sector groups according to the interference among the sectors in the common cell, the distance among the sectors, the coverage of the sectors and the preset channel resource multiplexing degree.

10. A network-side device, comprising:

the device comprises a dividing unit, a processing unit and a processing unit, wherein the dividing unit is used for dividing sectors in a common cell into N sector groups according to interference among the sectors in the common cell, distance among the sectors or coverage of the sectors, each sector group comprises at least two sectors, N is an integer and is more than or equal to 2;

and an allocating unit, configured to allocate, when a first terminal accesses from a first sector of a first sector group of the N sector groups divided by the dividing unit, a first channel resource allocated to the first sector group to the first terminal, where the first channel resource is different from a channel resource allocated to another sector group of the N sector groups except the first sector group, and the first channel resource has been allocated to a second terminal in a second sector of the first sector group, and the first sector is different from the second sector.

11. The network-side device of claim 10,

the allocation unit is further configured to: allocating different channel resources for each sector group in the N sector groups divided by the dividing unit; wherein the channel resources allocated to the first group of sectors by the allocation unit include the first channel resources.

12. The network-side device of claim 11,

the allocation unit is specifically configured to: and under the condition that the number of the currently idle channel resources in the channel resources allocated to the first sector group meets a first preset condition, allocating the first channel resource to the first terminal.

13. The network-side device of claim 12,

the allocation unit is specifically configured to: and on the condition that the number of the currently idle available channel resources in the channel resources allocated to the first sector group does not meet the first preset condition, allocating currently idle second channel resources to the first terminal, wherein the channel resources allocated to the first sector group comprise the second channel resources.

14. The network-side device of claim 10,

the allocation unit is further configured to: and under the condition that the number of the current idle channel resources in the channel resources of the common cell meets a second preset condition, allocating the first channel resources to the first terminal.

15. The network-side device of claim 14,

the allocation unit is specifically configured to: and under the condition that the number of the currently idle channel resources in the channel resources of the common cell does not meet the second preset condition, allocating the currently idle second channel resources of the common cell to the first sector group, and allocating the second channel resources to the first terminal.

16. The network-side device of claim 10, further comprising a setting unit,

the setting unit is configured to set the first channel resource as a currently idle channel resource when the first terminal stops using the first channel resource and the first channel resource is not used by other terminals.

17. The network side device of claim 10, wherein interference between any two sectors in each of the sector groups divided by the dividing unit is smaller than an interference threshold.

18. The network-side device according to any one of claims 10 to 17, wherein the dividing unit is specifically configured to: