CN103650564B - The resource allocation methods and equipment of cell altogether - Google Patents

Abstract

Embodiments of the present invention provide a resource allocation method and equipment for a common cell, the method includes dividing the sectors in the common cell into N sector groups, where each sector group includes at least two sectors, and N is Integer, and N≥2; when the first terminal accesses from the first sector of the first sector group in the N sector groups, the first channel resource allocated to the first sector group allocated to the first terminal, wherein the first channel resource is different from channel resources allocated to other sector groups in the N sector groups except the first sector group, and the first Channel resources have been allocated to a second terminal in a second sector of the first sector group, the first sector being different from the second sector. It is possible to transmit data with different terminals on the same channel resource in the same cell at the same time, effectively improving resource utilization and system capacity.

Description

Resource allocation method and device for shared cell

technical field

The embodiments of the present invention relate to the technical field of communications, and more specifically, to a resource allocation method and device for shared cells.

Background technique

In order to build a network in a narrow frequency band and solve the coverage problem, the industry often adopts shared cell technologies, such as RRU (Radio Remote Unit, radio remote unit) shared cell technology or Abis interface shared cell technology. The co-cell technology is to combine multiple cells into a super cell network, that is, multiple different cells covering different areas (called "sectors" or "location groups") are logically equivalent to one cell (called "sector group") in logical configuration. Super cell" or "common cell"), the number of carrier frequencies and CGI (Cell Global Identifier) parameter configurations of each sector in the shared cell are the same (the output power of the carrier can be fine-tuned).

In the prior art, all sectors in a common cell are completely synchronized, that is, all sectors in the same common cell send the same information on 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 Terminals) in the same common cell stay on the same BCCH (Broadcasting Control Channel, broadcast control channel) to listen to broadcast messages; or each sector listens to broadcast messages at the same time on the same TCH (Traffic Channel, service channel) to send the same data to the same terminal, and the carrier frequencies occupied by BCCH and TCH are combined carrier frequencies. Since each sector in the common cell uses the same TCH channel to transmit services such as voice or data with only one terminal at the same time, the utilization rate of spectrum resources is low and the system capacity is reduced.

Contents of the invention

Embodiments of the present invention provide a resource allocation method and equipment for shared cells, which can improve the utilization rate of spectrum resources and improve system capacity.

In the first aspect, a resource allocation method for a common cell is provided, the method includes: dividing the sectors in the common cell into N sector groups, wherein each sector group includes at least two sectors, and N is Integer, and N≥2; when the first terminal accesses from the first sector of the first sector group in the N sector groups, the first channel resource allocated to the first sector group allocated to the first terminal, wherein the first channel resource is different from channel resources allocated to other sector groups in the N sector groups except the first sector group, and the first Channel resources have been allocated to a second terminal in 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 division of the sectors in the common cell into N sector groups, the method further includes: for the N sector groups Different channel resources are allocated to each sector group; wherein, the channel resources allocated to the first sector group include the first channel resource.

In combination with the first aspect, in combination with any one of the above implementation manners, in another implementation manner, the allocating the first channel resource allocated to the first sector group to the first terminal includes : if the number of currently idle channel resources among the channel resources allocated to the first sector group satisfies a first preset condition, then allocate the first channel resource to the first terminal.

In combination with the first aspect, in combination with any of the above implementation manners, in another implementation manner, among the channel resources allocated to the first sector group, the currently idle available channel resources If the number does not meet the first preset condition, allocate currently idle second channel resources to the first terminal, and the channel resources allocated to the first sector group include the second channel resources resource.

In combination with the first aspect, in combination with any one of the above implementation manners, in another implementation manner, the allocating the first channel resource allocated to the first sector group to the first terminal includes : Allocating the first channel resource to the first terminal when the number of currently idle channel resources among the channel resources of the common cell satisfies a second preset condition.

In combination with the first aspect, in combination with any one of the above implementation manners, in another implementation manner, the number of currently idle channel resources in the channel resources of the common cell does not meet the second predetermined When a condition is set, allocate the currently idle second channel resource of the co-cell to the first sector group, and allocate the second channel resource to the first terminal.

In combination with the first aspect, in combination with any of the above 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 When the terminal uses it, set the first channel resource as a currently idle channel resource.

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

In combination with the first aspect, in combination with any of the above implementation manners, in another implementation manner, the dividing the sectors in the common cell into N sector groups includes: according to the The interference between the sectors or the distance between the sectors or the coverage of the sectors, divide the sectors in the common cell into the N sector groups; or, according to the The interference between the sectors or the distance between the sectors or the coverage of the sectors, as well as the preset reuse degree of channel resources, divide the sectors in the common cell into the N sectors Group.

In a second aspect, a network-side device is provided, and the network-side device includes: a division unit, configured to divide sectors in a common cell into N sector groups, wherein each sector group includes at least two sector groups area, N is an integer, and N≥2; the allocation unit is used for when the first terminal accesses the first sector of the first sector group in the N sector groups divided by the division unit, allocating to the first terminal the first channel resource allocated to the first sector group, where the first channel resource is the same as that allocated to the N sector groups except the first sector group The channel resources of other sector groups are different, and the first channel resource has been allocated to the second terminal in the second sector of the first sector group, and the first sector and the second sector Districts are different.

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

With reference to the second aspect, in combination with any one of the above implementation manners, in another implementation manner, the allocating unit is specifically configured to: among the channel resources allocated to the first sector group, currently If the number of idle channel resources satisfies a first preset condition, the first channel resource is allocated to the first terminal.

With reference to the second aspect, in combination with any one of the above implementation manners, in another implementation manner, the allocating unit is specifically configured to: allocate all the channel resources allocated to the first sector group If the number of currently idle available channel resources does not meet the first preset condition, allocate the currently idle second channel resources to the first terminal, and the allocation to the first sector group The channel resource includes the second channel resource.

With reference to the second aspect, in combination with any one of the above implementation manners, in another implementation manner, the allocating unit is further configured to: the number of currently idle channel resources among the channel resources of the shared cell satisfies In the case of the second preset condition, allocate the first channel resource to the first terminal.

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

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

With reference to the second aspect, in combination with any one of the above implementation manners, in another implementation manner, the interference between any two sectors in each sector group divided by the division unit is less than the interference threshold.

With reference to the second aspect, in combination with any one of the above implementation manners, in another implementation manner, the dividing unit is specifically configured to: according to the interference between sectors in the shared cell or the inter-sector Divide the sectors in the common cell into the N sector groups; or, according to the interference between the sectors in the common cell or the inter-sector The distance or the coverage of each sector, and the preset reuse degree of channel resources, divide the sectors in the common cell into the N sector groups.

In the embodiment of the present invention, the sectors in the common cell are divided into N sector groups, wherein each sector group contains at least two sectors, N is an integer, and N≥2; when the first terminal starts from N When the first sector of the first sector group in the sector group accesses, the first channel resource allocated to the first sector group is allocated to the first terminal, and the first channel resource has been allocated to the first sector group A second terminal in a second sector of , the first sector being different from the second sector. Since terminals in different sectors of the same sector group share the same channel resource, it is possible to transmit data with different terminals on the same channel resource in the same cell at the same time, effectively improving resource utilization and system capacity.

Description of drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only some of the present invention. Embodiments, for those of ordinary skill in the art, other drawings can also be obtained based on these drawings without any creative effort.

Fig. 1 is a flowchart of a resource allocation method for a common cell according to an embodiment of the present invention.

Fig. 2 is a flow chart of a resource allocation method for shared cells according to an embodiment of the present invention.

Fig. 3 is a schematic diagram of resource allocation of a common cell according to an embodiment of the present invention.

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

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

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts 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 described in Figure 1. A common cell includes 4 base stations, namely base station 110, base station 120, base station 130, and base station 140. Each base station includes 3 sectors (also called location groups), such as base station 140 Including sector D, sector E and sector F. It should be understood that the number of common cells, the number of base stations included in the common cell, and the number of sectors included in the base station in the scenario in FIG. 1 are only exemplary, and are not limited by this embodiment of the present invention. For example, a common cell may include one or more base stations, and one base station may include two or four sectors.

In the prior art, at the same time, each sector in a common cell uses the same channel to transmit services such as voice or data with a terminal. For example, in the scenario in Figure 1, four base stations form a common cell, and the 12 sectors in the common cell can only send the same data on the same channel (same channel resource) at the same time, that is, only communicate with one terminal Carry out the transmission of business data. That is to say, the capacity of the common cell including 12 sectors is equivalent to the capacity of one sector. Therefore, the utilization rate of spectrum resources is low, which reduces the system capacity.

In order to solve the above problems, embodiments of the present invention provide a resource allocation method and device for shared cells, which can effectively improve the utilization rate of spectrum resources and improve system capacity.

In the embodiment of the present invention, each sector in the same common cell broadcasts the same message on the same BCCH at the same time, the frequency occupied by the BCCH is the carrier frequency occupied by the master B, and the business on the carrier frequency of the master B Channels, such as TCH, are fully synchronized in each sector in the common cell, that is, each sector sends the same data on the same TCH channel at the same time; the traffic channel on the non-primary B carrier frequency, such as TCH, is in the common cell Each sector within can be independent. For example, different sectors can transmit data with different terminals on the same TCH channel (same channel resources) at the same time; or, different sectors can transmit data on different TCH channels (different channel resources) at the same time ) to transmit data with different terminals. The aforementioned independent non-primary B carrier frequencies for each sector in the common cell may be all non-primary B carrier frequencies in the common cell, or may be part of the non-primary B carrier frequencies. and many more. It should be understood that this embodiment of the present invention does not limit it.

Fig. 2 is a flow chart of a resource allocation method for shared cells according to an embodiment of the present invention. The method in FIG. 2 is executed by a network side device (such as a BSC (Base Station Controller, base station controller)).

201. 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.

Specifically, the sectors in the common cell can be divided into N sector groups according to the interference between the sectors in the common cell; or the interference between the sectors in the common cell and the preset channel The degree of resource reuse means that the sectors in the common cell are divided into N sector groups, which is not limited here. The channel resource multiplexing degree refers to the maximum number of terminals that can multiplex a channel resource.

Wherein, the interference between any two sectors in each sector group may be less than the interference threshold; or, the distance between any two sectors in each sector group is greater than the preset distance threshold; or, each sector The number of sectors of a group in a specific area is less than a preset number threshold. Specifically, the interference can be obtained through the path loss of the signal, which belongs to the prior art and will not be repeated here; the interference threshold can be preset inside the network side device, or can be configured to the network side device through the input device, and according to the user Modifications are required.

202. When the first terminal accesses from the first sector of the first sector group in the N sector groups, allocate the first channel resources allocated to the first sector group to the first terminal, where the first A channel resource is different from channel resources allocated to other sector groups in the N sector groups except the first sector group, and the first channel resource has been allocated to the second sector in the second sector of the first sector group Terminal, the first sector is different from the second sector.

Wherein, the channel resource may be indicated by a frequency point and a time slot; the frequency point is a frequency point of a common cell, and the time slot may be a time slot, or a time slot and a sub-slot. For example, assuming that the frequency point of carrier 1 in each sector of the shared cell is F1, and two channels are configured on time slot 0 of carrier 1, which are respectively on sub-slot 0 and sub-slot 1, then frequency point F1 Slot 0 sub-slot 1 indicates the channel on the slot 0 sub-slot 1 of carrier 1 with the frequency point F1.

It should be pointed out that when the network side equipment 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 . Usually, in order to ensure the access of terminals in the common cell, the network side equipment only allocates the channel resources on the non-BCCH carrier frequency in the common cell to each sector group, which can be static allocation or dynamic allocation. The way.

In step 202, the first terminal and the second terminal in different sectors of the same sector group share the same channel resource. The terminal transmits data, effectively improves resource utilization, and increases system capacity.

In the embodiment of the present invention, the sectors in the common cell are divided into N sector groups, wherein each sector group contains at least two sectors, N is an integer, and N≥2; when the first terminal starts from N When the first sector of the first sector group in the sector group accesses, the first channel resource allocated to the first sector group is allocated to the first terminal, and the first channel resource has been allocated to the first sector group A second terminal in a second sector of , the first sector being different from the second sector. Since terminals in different sectors of the same sector group share the same channel resource, it is possible to transmit data with different terminals on the same channel resource in the same cell at the same time, effectively improving resource utilization and system capacity; in addition , the first channel resource is different from the channel resources allocated to other sector groups in the N sector groups except the first sector group, which can avoid using the same channel resources when sectors in different sector groups are adjacent to each other. Strong interference caused by channel resources, so as to ensure service quality.

Optionally, as an embodiment, in step 201, sector groups may be divided according to the degree of closeness between sectors based on space division. The tightness between sectors may be reflected in the fact that the distance between any two sectors in the same sector group is greater than a preset distance threshold or the number of sectors in the same sector group in a specific area is less than a preset number threshold.

In the above step 201, the sectors in the common cell are divided into N sector groups, and the following implementation methods can be adopted specifically:

Mode 1: Divide the sectors in the shared cell into N sector groups according to the interference between the sectors in the shared cell or the distance between the sectors or the coverage of the sectors.

Specifically, it is divided according to the interference between sectors in the common cell, so that the interference of any two sectors in each sector group is less than the interference threshold; it is divided according to the distance between the sectors in the common cell, so that each sector The distance between any two sectors in the block group is greater than the preset distance threshold; it is divided according to the coverage of each sector in the common cell, so that the number of sectors in each sector group in a specific area is less than the preset number threshold .

Method 2: Divide the sectors in the shared cell into N sectors according to the interference between the sectors in the shared cell, the distance between the sectors or the coverage of each sector, and the preset channel resource multiplexing degree Group.

The above method 1 makes the interference between any two sectors in each sector group small enough to effectively control the interference; the above method 2, when dividing the sector group, comprehensively refers to the interference between the sectors in the sector group The multiplexing of interference and channel resources realizes interference control while ensuring the improvement of system capacity. It should be understood that the embodiment of the present invention does not limit the manner of dividing the sector groups.

Taking the scene in Figure 1 as an example, based on the 1*3 space division method, the sectors of the common cell can be divided into 3 sector groups. Assume that the 3 sector groups are sector group 0 and sector 1 respectively. sector group and No. 2 sector group. The distance between any two sectors in the same sector group is greater than the preset distance threshold, so that adjacent sectors do not belong to the same sector group. Sector group 0 includes sector E, sector A, sector Zone C and Sector H; Sector Group No. 1 includes Sector D, Sector I, Sector J, and Sector L; and Sector Group No. 2 includes Sector F, Sector B, Sector G, and Sector K.

For another example, based on the 2*3 space division manner, the sectors of the common cell can be divided into 6 sector groups. 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, and sector group No. 3 includes sector Zone D and sector H, No. 4 sector group includes sector A and sector L, and No. 5 sector group includes sector I and sector G. That is to say, compared with the space division method of 1*3, the number of sectors in a specific area of the same sector group is reduced.

It should be understood that the number of divided sector groups and the manner of dividing the sector groups in the above example are only exemplary, and are not intended to limit the scope of the present invention.

Based on space division, sector groups are divided by the closeness between sectors. The distance between sectors in the same sector group is greater than a certain distance threshold or the number of sectors in the same sector group in a specific area is reduced, so that each sector The interference between any two sectors in a block group is small enough, 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 , that is, while realizing resource sharing by multiple terminals and increasing system capacity, interference can be effectively controlled to ensure service quality.

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

Taking the above-mentioned division of the sectors of the shared cell in the scenario in Figure 1 into three sector groups based on 1*3 as an example, assume that the scenario in Figure 1 uses four frequency point networking, namely frequency points f1, f2, f3, and f4 , each frequency point includes 8 time slots (slot 0-7). Assume that 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, as shown in Figure 3. The channel resources on the frequency points other than the main B carrier frequency can be allocated to the divided 3 sector groups, for example, the channel resources of time slots 0-4 on frequency point f2 and the channel resources of time slots 0-2 on frequency point f3 Resources are allocated to sector group 0; channel resources of time slots 3-7 on frequency f3 are allocated to sector group 1; and channel resources of time slots 0-7 on frequency f4 are allocated to sector 2 Group.

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

Optionally, in step 202, the first channel resource may be allocated to the first terminal under the condition that the currently idle channel resource among the channel resources allocated to the first sector group satisfies the first preset condition. That is to say, in resource multiplexing, 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 the channel resources allocated to the first sector group is greater than a certain number threshold, or, among the channel resources allocated to the first sector group, currently The ratio of the number of idle channel resources to the number of channel resources allocated to the first sector group is greater than a certain ratio threshold.

Through the above solution, since the terminals in different sectors of the same sector group share the same channel resource, it is possible to transmit data with different terminals in the common cell at the same time, effectively improving resource utilization and system capacity.

Optionally, the above method also includes:

In the case that the currently idle available channel resources among the channel resources allocated to the first sector group do not meet the above-mentioned first preset condition, the currently idle second channel resources among the channel resources allocated to the first sector group may be assigned to the first terminal. In this way, it can be ensured that idle channel resources in the first sector group are preferentially allocated to terminals, thereby reducing interference more effectively and further improving service quality.

For example, the sector where the first terminal is located is sector A, sector A belongs to sector group 0, and the channel resources allocated to sector group 0 are channel resources of time slots 3-7 on frequency f3. Assume that the currently idle channel resource has time slots 3-6 on frequency f3, and the occupied channel resource is time slot 7 on frequency f3. When the first terminal accesses from sector A, optionally, it is determined that among the channel resources allocated to sector group 0, the currently idle channel resources do not meet the first preset condition (for example, the ratio threshold is 50%) In the case of , the currently idle channel resources (such as frequency f3 and time slot 3) may be selected and allocated to the first terminal. Or, suppose that the currently idle channel resources have time slots 3-4 on frequency f3, and the occupied channel resources have time slots 5-7 on frequency f3, wherein the channel resources occupied by the second terminal are time slots on frequency f3 6. When the first terminal accesses from sector A, optionally, if it is determined that the currently idle channel resource among the channel resources allocated to sector group 0 satisfies the first preset condition, the first terminal may be judged Whether it is in the same sector as the second terminal, or if the first terminal and the second terminal are in different sectors, time slot 6 on frequency f3 can also be allocated to the first terminal, that is, resource sharing within the group can be realized.

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, the first channel resource may be allocated to the first terminal under the condition that the currently idle channel resource among the channel resources of the common cell satisfies the second preset condition. That is to say, in resource multiplexing, 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 the number of channel resources currently idle in the channel resources of the common cell is different from that of the channel resources of the common cell. The proportion of the number of resources is greater than a certain proportion threshold.

Through the above solution, since the terminals in different sectors of the same sector group share the same channel resource, it is possible to transmit data with different terminals in the common cell at the same time, effectively improving resource utilization and system capacity.

Optionally, the above method also includes:

In the case that the channel resources that are currently idle among the channel resources of the common cell do not meet the above-mentioned second preset condition, the second channel resource that is currently idle in the common cell can be allocated to the first sector group, and the second channel resource can be allocated to the first sector group. assigned to the first terminal. In this way, it can be ensured that idle channel resources of the common cell are allocated to the terminal in priority, thereby reducing interference more effectively and further improving service quality.

Taking the above-mentioned division of the sectors of the common cell in the scenario in Figure 1 into three sector groups based on 1*3 space as an example, as shown in Figure 3, the master B uses the channel resources of the frequency point f1 and time slot 0, that is, the master B occupies The frequency point of the carrier B is f1, and the frequency points of the non-primary B carrier frequency are frequency points f2, f3 and f4. Each frequency point has 8 time slots (time slots 0-7), assuming that the sector where the second terminal is located is Sector D belongs to sector group No. 1, and the channel resource currently occupied by the second terminal is time slot 2 at frequency f4, and at the same time, time slot 2 at frequency f4 is allocated to 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 it belongs to is also sector group No. 1, that is, the sectors where the second terminal and the first terminal are located are not the same but belong to the same sector group, optionally, frequency f4 and time slot 2 may be allocated to the first terminal, and the first terminal and the second terminal share the channel resource. Further, when it is determined that the number of currently idle channel resources among the channel resources of the common cell satisfies the second preset condition, frequency point f4 and 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 f2 and time slot 3 are allocated to the first terminal. Correspondingly, that is, the time slot 3 at the frequency point f2 is allocated to the No. 1 sector group, and the time slot 3 at the frequency point f2 also belongs to the channel resource of the No. 1 sector group. Further, in a case where it is determined that the number of currently idle channel resources in the channel resources of the common cell does not satisfy the above-mentioned second preset condition, the first terminal may be allocated a currently idle second channel resource.

In addition, when the accessed terminal stops using the originally occupied channel resource (for example, the service ends), the channel resource is correspondingly set as the currently idle channel resource. That is to say, the channel resource allocated to each sector group is not constant, but changes according to the access situation of the terminal. At a certain moment, a certain sector group allocates more channel resources, and at another moment, other sector groups may allocate more channel resources. As in the above example, at a certain moment, 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 can be set as the current idle channel resource of the shared cell. channel resources, that is, recycle the first channel resources allocated to the first sector group to the idle channel resource pool of the co-cell, so as to be dynamically allocated to a certain sector group with terminal access later.

The embodiment of the present invention dynamically allocates channel resources of non-primary B carrier frequency to divided sector groups according to terminal access resources, which can improve the flexibility of resource allocation and effectively improve resource utilization. In addition, multiple 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, which not only effectively controls the inter-sector interference, but also greatly improves resource utilization and increase system capacity.

Fig. 4 is a structural block diagram of a network side 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 .

The dividing unit 401 is configured to divide the sectors in the common cell into N sector groups, wherein each sector group includes at least two sectors, N is an integer, and N≥2.

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

Optionally, the division unit 401 is specifically configured to: divide the sectors in the common cell into N sector groups according to the interference between the sectors in the common cell; or divide the sectors in the common cell into N sector groups; According to the inter-interference and the preset channel resource reuse degree, the sectors in the common cell are divided into N sector groups, which are not limited here. The channel resource multiplexing degree refers to the maximum number of terminals that can multiplex a channel resource.

Wherein, the interference between any two sectors in each sector group divided by the division unit 401 may be less than an interference threshold; or, the distance between any two sectors in each sector group is greater than a preset distance threshold; or , the number of sectors in each sector group in the specific area is less than a preset number threshold. Specifically, the interference can be obtained through the path loss of the signal, which belongs to the prior art and will not be repeated here; the interference threshold can be preset inside the network side device, or can be configured to the network side device through the input device, and according to the user Modifications are required.

Wherein, the channel resource may be indicated by a frequency point and a time slot; the frequency point is a frequency point of a common cell, and the time slot may be a time slot, or a time slot and a sub-slot. For example, assuming that the frequency point of carrier 1 in each sector of the shared cell is F1, and two channels are configured on time slot 0 of carrier 1, which are respectively on sub-slot 0 and sub-slot 1, then frequency point F1 Slot 0 sub-slot 1 indicates the channel on the slot 0 sub-slot 1 of carrier 1 with the frequency point F1.

It should be pointed out that when the 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 . Normally, in order to ensure the access of terminals in the common cell, the allocation unit 402 only allocates the channel resources on the non-BCCH carrier frequency in the common cell to each sector group, which can be static allocation or dynamic allocation. The way.

In the embodiment of the present invention, the sectors in the common cell are divided into N sector groups, wherein each sector group contains at least two sectors, N is an integer, and N≥2; when the first terminal starts from N When the first sector of the first sector group in the sector group accesses, the first channel resource allocated to the first sector group is allocated to the first terminal, and the first channel resource has been allocated to the first sector group A second terminal in a second sector of , the first sector being different from the second sector. Since terminals in different sectors of the same sector group share the same channel resource, it is possible to transmit data with different terminals on the same channel resource in the same cell at the same time, effectively improving resource utilization and system capacity; in addition , the first channel resource is different from the channel resources allocated to other sector groups in the N sector groups except the first sector group, which can avoid using the same channel resources when sectors in different sector groups are adjacent to each other. Strong interference caused by channel resources, so as to ensure service quality.

The network-side device 400 can implement the operations related to the network-side device in the embodiments of FIG. 2 to FIG. 3 , so to avoid repetition, no detailed description is given here.

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

Divide the sectors in the common cell into N sector groups according to the interference between the sectors in the common cell or the distance between the sectors or the coverage of each sector; or,

Divide the sectors in the shared cell into the N sector groups according to the interference between the sectors in the shared cell, the distance between the sectors or the coverage of the sectors, and the preset multiplexing degree of channel resources.

Specifically, the sector group may be divided according to the degree of closeness between sectors based on space division. The tightness between sectors may be reflected in the fact that the distance between any two sectors in the same sector group is greater than a preset distance threshold or the number of sectors in the same sector group in a specific area is less than a preset number threshold. Reference may be made to the embodiment shown in FIG. 2 above, and details are not repeated here.

Optionally, as another embodiment, the allocating unit 402 may also be configured to: allocate different channel resources 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 allocating unit 402 includes the first channel resource.

Optionally, the allocating unit 402 is specifically configured to: allocate the first channel resource to the first terminal under the condition that the currently idle channel resource among the channel resources allocated to the first sector group satisfies the first preset condition. That is to say, in resource multiplexing, 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 the channel resources allocated to the first sector group is greater than a certain number threshold, or, among the channel resources allocated to the first sector group, currently The ratio of the number of idle channel resources to the number of channel resources allocated to the first sector group is greater than a certain ratio threshold.

Through the above solution, since the terminals in different sectors of the same sector group share the same channel resource, it is possible to transmit data with different terminals in the common cell at the same time, effectively improving resource utilization and system capacity.

Optionally, the allocating unit 402 is specifically configured to: in the case that the available channel resources that are currently idle among the channel resources allocated to the first sector group do not meet the above-mentioned first preset condition, the channel resource allocated to the first sector group The second channel resource that is currently idle among the channel resources is allocated to the first terminal. In this way, it can be ensured that idle channel resources in the first sector group are preferentially allocated to terminals, thereby reducing interference more effectively and further improving service quality.

Optionally, as another embodiment, the allocating unit 402 may be further configured to allocate the first channel resource to the first terminal. That is to say, in resource multiplexing, 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 the number of channel resources currently idle in the channel resources of the common cell is different from that of the channel resources of the common cell. The proportion of the number of resources is greater than a certain proportion threshold.

Through the above solution, since the terminals in different sectors of the same sector group share the same channel resource, it is possible to transmit data with different terminals in the common cell at the same time, effectively improving resource utilization and system capacity.

Optionally, the allocating unit 402 is specifically configured to: in the case that the channel resources that are currently idle among the channel resources of the common cell do not meet the above-mentioned second preset condition, may allocate the second channel resource that is currently idle in the common cell to the second channel resource that is currently idle. a sector group, and allocate the second channel resource to the first terminal. In this way, it can be ensured that idle channel resources of the common cell are allocated to the terminal in priority, thereby reducing interference more effectively and further improving service quality.

Optionally, as another embodiment, the network side device 400 may further include a setting unit 403 . The setting unit 403 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.

That is to say, the channel resource allocated by the allocating unit 402 to each sector group is not constant, but changes according to the access situation of the terminal. At a certain moment, the allocating unit 402 may allocate more channel resources to a certain sector group, and at another moment, the allocating unit 402 may allocate more channel resources to other sector groups. As in the above example, at a certain moment, when the first terminal stops using the first channel resource, at this time, the first channel resource is not used by other terminals, the setting unit 403 can be used to set the first channel resource to The current idle channel resources of the common cell, that is, the first channel resource allocated to the first sector group, is recycled to the idle channel resource pool of the common cell, so as to be dynamically allocated to a certain sector group that has terminal access.

The embodiment of the present invention dynamically allocates channel resources of non-primary B carrier frequency to divided sector groups according to terminal access resources, which can improve the flexibility of resource allocation and effectively improve resource utilization. In addition, multiple 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, which not only effectively controls the inter-sector interference, but also greatly improves resource utilization and increase system capacity.

Fig. 5 is a structural 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 through a bus system 505, wherein the bus system 505 includes not only a data bus, but also a power bus, a control bus, and a status signal bus. However, for clarity of illustration, the various buses are labeled as bus system 505 in the figure.

Wherein, the processor 502 may be an integrated circuit chip, which has a signal processing capability. In the implementation process, each step of the above method can be completed by an integrated logic circuit of hardware in the processor 502 or an instruction in the form of software. The above-mentioned processor 502 may be a general-purpose processor, including a CPU (Central Processing Unit, central processing unit), NP (Network Processor, network processor), etc.; it may also be a DSP (Digital Signal Processing, digital signal processor), an ASIC (Application Specific Integrated Circuit, application specific integrated circuit), FPGA (Field Programmable Gate Array, off-the-shelf programmable gate array) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components. Various methods, steps and logic block diagrams disclosed in the embodiments of the present invention may be implemented or executed. A general-purpose processor may be a microprocessor, or the processor may be any conventional processor, or the like.

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

The memory 503 stores the following elements, executable modules or data structures, or their subsets, or their extended sets:

Operation instructions: include various operation instructions for realizing various operations.

Operating system: includes various system programs for implementing various basic services and processing hardware-based tasks.

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

The processor 502 is 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≥2.

The processor 502 is further configured to allocate the first channel resources allocated to the first sector group to The first terminal, wherein the first channel resource is different from the channel resources allocated to other sector groups in the N sector groups except the first sector group, and the first channel resource has been allocated to the first sector group of the first sector group For the second terminal in two sectors, the first sector is different from the second sector.

Optionally, the processor 502 is specifically configured to: divide the sectors in the common cell into N sector groups according to the interference between the sectors in the common cell; or divide the sectors in the common cell into N sector groups; According to the inter-interference and the preset channel resource reuse degree, the sectors in the common cell are divided into N sector groups, which are not limited here. The channel resource multiplexing degree refers to the maximum number of terminals that can multiplex a channel resource.

Wherein, the interference between any two sectors in each sector group divided by the processor 502 may be less than an interference threshold; or, the distance between any two sectors in each sector group is greater than a preset distance threshold; or , the number of sectors in each sector group in the specific area is less than a preset number threshold. Specifically, the interference can be obtained through the path loss of the signal, which belongs to the prior art and will not be repeated here; the interference threshold can be preset inside the network side device, or can be configured to the network side device through the input device, and according to the user Modifications are required.

Wherein, the channel resource may be indicated by a frequency point and a time slot; the frequency point is a frequency point of a common cell, and the time slot may be a time slot, or a time slot and a sub-slot. For example, assuming that the frequency point of carrier 1 in each sector of the shared cell is F1, and two channels are configured on time slot 0 of carrier 1, which are respectively on sub-slot 0 and sub-slot 1, then frequency point F1 Slot 0 sub-slot 1 indicates the channel on the slot 0 sub-slot 1 of carrier 1 with the frequency point F1.

It should be pointed out that when the 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 . Normally, in order to ensure the access of 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 can be static allocation or dynamic allocation. The way.

In the embodiment of the present invention, the sectors in the common cell are divided into N sector groups, wherein each sector group contains at least two sectors, N is an integer, and N≥2; when the first terminal starts from N When the first sector of the first sector group in the sector group accesses, the first channel resource allocated to the first sector group is allocated to the first terminal, and the first channel resource has been allocated to the first sector group A second terminal in a second sector of , the first sector being different from the second sector. Since terminals in different sectors of the same sector group share the same channel resource, it is possible to transmit data with different terminals on the same channel resource in the same cell at the same time, effectively improving resource utilization and system capacity; in addition , the first channel resource is different from the channel resources allocated to other sector groups in the N sector groups except the first sector group, which can avoid using the same channel resources when sectors in different sector groups are adjacent to each other. Strong interference caused by channel resources, so as to ensure service quality.

The network-side device 500 can implement the operations in the embodiments shown in FIG. 2 to FIG. 3 , so to avoid repetition, no detailed description is given here.

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

Divide the sectors in the common cell into N sector groups according to the interference between the sectors in the common cell or the distance between the sectors or the coverage of each sector; or,

Divide the sectors in the shared cell into N sector groups according to the interference between the sectors in the shared cell, the distance between the sectors or the coverage of the sectors, and the preset multiplexing degree of channel resources.

Specifically, the sector group may be divided according to the degree of closeness between sectors based on space division. The tightness between sectors may be reflected in the fact that the distance between any two sectors in the same sector group is greater than a preset distance threshold or the number of sectors in the same sector group in a specific area is less than a preset number threshold. Reference may be made to the embodiment shown in FIG. 2 above, and details are not repeated here.

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 resource allocated to the first sector group by the processor 502 includes the first channel resource.

Optionally, the processor 502 is specifically configured to: allocate the first channel resource to the first terminal under the condition that the currently idle channel resource among the channel resources allocated to the first sector group satisfies a first preset condition. That is to say, in resource multiplexing, 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 the channel resources allocated to the first sector group is greater than a certain number threshold, or, among the channel resources allocated to the first sector group, currently The ratio of the number of idle channel resources to the number of channel resources allocated to the first sector group is greater than a certain ratio threshold.

Through the above solution, since the terminals in different sectors of the same sector group share the same channel resource, it is possible to transmit data with different terminals in the common cell at the same time, effectively improving resource utilization and system capacity.

Optionally, the processor 502 is specifically configured to: in the case that the currently idle available channel resources among the channel resources allocated to the first sector group do not meet the above-mentioned first preset condition, the channel resources allocated to the first sector group may be allocated to the first sector group The second channel resource that is currently idle among the channel resources is allocated to the first terminal. In this way, it can be ensured that idle channel resources in the first sector group are preferentially allocated to terminals, thereby reducing interference more effectively and further improving service quality.

Optionally, as another embodiment, the processor 502 may be further configured to: allocate the first channel resource to the first terminal. That is to say, in resource multiplexing, 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 the number of channel resources currently idle in the channel resources of the common cell is different from that of the channel resources of the common cell. The proportion of the number of resources is greater than a certain proportion threshold.

Through the above solution, since the terminals in different sectors of the same sector group share the same channel resource, it is possible to transmit data with different terminals in the common cell at the same time, effectively improving resource utilization and system capacity.

Optionally, the processor 502 is specifically configured to: allocate the currently idle second channel resources of the shared cell to the second channel resource in the shared cell in the case that the channel resource that is currently idle among the channel resources of the shared cell does not meet the above-mentioned second preset condition. a sector group, and allocate the second channel resource to the first terminal. In this way, it can be ensured that idle channel resources of the common cell are allocated to the terminal in priority, thereby reducing interference more effectively and further improving service quality.

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

That is to say, the channel resource allocated by the processor 502 to each sector group is not constant, but changes according to the access situation of the terminal. At a certain moment, the processor 502 allocates more channel resources to a certain sector group, and at another moment, the processor 502 may allocate more channel resources to other sector groups. As in the above example, at a certain moment, 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 can be used to set the first channel resource to The current idle channel resources of the common cell, that is, the first channel resource allocated to the first sector group, is recycled to the idle channel resource pool of the common cell, so as to be dynamically allocated to a certain sector group that has terminal access.

The embodiment of the present invention dynamically allocates channel resources of non-primary B carrier frequency to divided sector groups according to terminal access resources, which can improve the flexibility of resource allocation and effectively improve resource utilization. In addition, multiple 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, which not only effectively controls the inter-sector interference, but also greatly improves resource utilization and increase system capacity.

Those skilled in the art can appreciate that the units and algorithm steps of the examples described in conjunction with the embodiments disclosed herein can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are executed by hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art may use different methods to implement the described functions for each specific application, but such implementation should not be regarded as exceeding the scope of the present invention.

Those skilled in the art can clearly understand that for the convenience and brevity of the description, the specific working process of the above-described system, device and unit can refer to the corresponding process in the foregoing method embodiment, which will not be repeated here.

In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods may be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components can be combined or May be integrated into another system, or some features may be ignored, or not implemented. In another point, the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

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

If the functions described above are realized in the form of software function units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the essence of the technical solution of the present invention or the part that contributes to the prior art or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in various embodiments of the present invention. The aforementioned storage media include: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disk or optical disk, and other media that can store program codes. .

The above is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Anyone skilled in the art can easily think of changes or substitutions within the technical scope disclosed in the present invention. Should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims (18)

1. A method for allocating resources in a common cell, comprising: According to the interference between the sectors in the shared cell or the distance between the sectors or the coverage of the sectors, divide the sectors in the shared cell into N sector groups, wherein each sector The group contains at least two sectors, N is an integer, and N≥2; When the first terminal accesses from the first sector of the first sector group in the N sector groups, allocating the first channel resource allocated to the first sector group to the first terminal , wherein the first channel resource is different from the channel resources allocated to other sector groups in the N sector groups except the first sector group, and the first channel resource has been allocated to the A second terminal in a second sector of the first group of sectors, the first sector being different than the second sector. 2. The method according to claim 1, characterized in that, after the sectors in the shared cell are divided into N sector groups, the method further comprises: Allocating different channel resources to each of the N sector groups; Wherein, the channel resource allocated to the first sector group includes the first channel resource. 3. The method according to claim 2, wherein the allocating the first channel resource allocated to the first sector group to the first terminal comprises: If the number of currently idle channel resources among the channel resources allocated to the first sector group satisfies a first preset condition, then allocate the first channel resource to the first terminal. 4. method according to claim 3, is characterized in that, described method also comprises: If the number of currently idle available channel resources among the channel resources allocated to the first sector group does not meet the first preset condition, allocating currently idle second channel resources to the sector group For the first terminal, the channel resource allocated to the first sector group includes the second channel resource. 5. The method according to claim 1, wherein the allocating the first channel resource allocated to the first sector group to the first terminal comprises: Allocating the first channel resource to the first terminal when the number of currently idle channel resources in the channel resources of the co-cell satisfies a second preset condition. 6. The method according to claim 5, further comprising: In the case that the number of the currently idle channel resources in the channel resources of the shared cell does not meet the second preset condition, allocate the currently idle second channel resources of the shared cell to the first sector group, and allocate the second channel resource to the first terminal. 7. The method according to claim 1, further comprising: When the first terminal stops using the first channel resource and the first channel resource is not used by other terminals, set the first channel resource as a currently idle channel resource. 8. The method according to claim 1, wherein the interference between any two sectors in each sector group is smaller than an interference threshold. 9. The method according to any one of claims 1-8, wherein said dividing the sectors in the common cell into N sector groups comprises: According to the interference between the sectors in the shared cell or the distance between the sectors or the coverage of the sectors, and the preset channel resource reuse degree, divide the sectors in the shared cell into The N sector groups. 10. A network side device, characterized in that it comprises: A division unit, configured to divide the sectors in the common cell into N sector groups according to the interference between the sectors in the common cell or the distance between the sectors or the coverage of the sectors, wherein , each sector group contains at least two sectors, N is an integer, and N≥2; an allocating unit, configured to assign the first sector to the first sector group when the first terminal accesses from the first sector of the first sector group in the N sector groups divided by the dividing unit The first channel resource is allocated to the first terminal, where the first channel resource is different from the channel resources allocated to other sector groups in 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, the first sector being different from the second sector. 11. The network side device according to claim 10, characterized in that, The allocating unit is further configured to: allocate different channel resources to each of the N sector groups divided by the dividing unit; wherein, the allocating unit allocates to the first sector group The channel resource includes the first channel resource. 12. The network side device according to claim 11, characterized in that, The allocating unit is specifically configured to: if the number of currently idle channel resources among the channel resources allocated to the first sector group satisfies a first preset condition, allocate the first channel resource to the first terminal. 13. The network side device according to claim 12, characterized in that, The allocating unit is specifically configured to: in the case that the number of currently idle available channel resources among the channel resources allocated to the first sector group does not meet the first preset condition, assign the currently idle channel resources to The second channel resources allocated to the first terminal are allocated to the first terminal, and the channel resources allocated to the first sector group include the second channel resources. 14. The network side device according to claim 10, characterized in that, The allocating unit is further configured to: allocate the first channel resource to the first terminal when the number of currently idle channel resources in the channel resources of the co-cell satisfies a second preset condition. 15. The network side device according to claim 14, characterized in that, The allocating unit is specifically configured to: in the case that the number of the currently idle channel resources in the channel resources of the common cell does not meet the second preset condition, allocate the currently idle second channel resources of the common cell to Channel resources are allocated to the first sector group, and the second channel resources are allocated to the first terminal. 16. The network side device according to claim 10, wherein the network side device further comprises 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 according to claim 10, wherein the interference between any two sectors in each sector group divided by the division unit is smaller than an interference threshold. 18. The network side device according to any one of claims 10-17, wherein the division unit is specifically used for: According to the interference between the sectors in the shared cell or the distance between the sectors or the coverage of the sectors, and the preset channel resource reuse degree, divide the sectors in the shared cell into The N sector groups.