CN107182059B - Method and device for finely distributing resources and baseband processing unit - Google Patents
Method and device for finely distributing resources and baseband processing unit Download PDFInfo
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- CN107182059B CN107182059B CN201610139917.9A CN201610139917A CN107182059B CN 107182059 B CN107182059 B CN 107182059B CN 201610139917 A CN201610139917 A CN 201610139917A CN 107182059 B CN107182059 B CN 107182059B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/02—Resource partitioning among network components, e.g. reuse partitioning
- H04W16/10—Dynamic resource partitioning
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/14—Spectrum sharing arrangements between different networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/0231—Traffic management, e.g. flow control or congestion control based on communication conditions
- H04W28/0236—Traffic management, e.g. flow control or congestion control based on communication conditions radio quality, e.g. interference, losses or delay
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The invention provides a method and a device for finely distributing resources, wherein the method comprises the following steps: aiming at any target RRU sector in a logic cell, respectively comparing the uplink signal quality of any UE to the target RRU sector with the uplink signal quality of the UE to the rest RRU sectors in the logic cell one by one to obtain corresponding uplink signal quality difference; the logic cell is formed by combining more than two RRU sectors with equal pilot frequency transmitting power under one baseband processing unit; the target RRU sector is selected from RRU sectors except the RRU sector with the largest uplink load in the logic cell; and if at least one uplink signal quality difference in the obtained uplink signal quality differences meets the set condition, only allocating uplink demodulation resources of the target RRU sector to the UE. The invention can improve the utilization efficiency of the base band resource and the power resource of the base station.
Description
Technical Field
The present invention relates to the field of WCDMA (Wideband Code Division Multiple Access) network technology, and in particular, to a method and an apparatus for finely allocating resources, and a BBU (Base band Unit).
Background
In an actual WCDMA commercial network, a network deployment scheme that combines RRU (Radio Remote Unit) cells corresponding to a plurality of Radio frequency modules of a base station may be often adopted, where one base station includes one BBU and a plurality of RRUs, and one RRU covers one sector, so that the sector covered by the RRU is referred to as an RRU sector for short. A plurality of RRU sectors are scrambled with the same downlink scrambling code, and the situation of two RRU sectors is shown in fig. 1, so that the workload of switching between cells or scrambling code resource planning can be reduced, the configuration of a baseband single board can be saved, and the application scenario can be as follows: indoor coverage, along highways or railways, etc.
After combining a plurality of RRU sectors into one logical cell, a sub-cell scheduling scheme is often adopted in the same logical cell in order to enhance uplink and downlink capacity of the logical cell, and since a plurality of cells combined into the same cell are scrambled by the same downlink scrambling code, a user equipment UE cannot distinguish signals of different cells, and at this time, the sub-cell scheduling scheme generally adopts the strength of an uplink signal to judge and decide baseband resources and power resource scheduling of different cells. The base band resource comprises a downlink coding resource and an uplink demodulation resource, and the power resource comprises a downlink power resource. If the uplink loads of two adjacent RRU sectors in the same logical cell are basically balanced, the base band resource and power resource allocation is decided according to the strength of uplink signals, and there is no problem. However, for the situation that the uplink load difference between two adjacent RRU sectors in the same logical cell is large, that is, the position difference between the uplink signal coverage boundary and the downlink signal coverage boundary is large, there is a problem if the baseband resource and power resource allocation is determined according to the strength of the uplink signal. Taking a logical cell formed by combining two RRUs as an example, when an RRU sector 1 and an RRU sector 2 under a base station BBU are combined into one logical cell, as shown in fig. 1, when an uplink load of the RRU sector 1 is equivalent to an uplink load of the RRU sector 2, a position of an uplink signal coverage boundary is close to a position of a downlink signal coverage boundary. As shown in fig. 2, the uplink load of RRU sector 1 is much larger than that of RRU sector 2, the uplink signal coverage boundary is closer to one side of the RRU sector 1 and is separated from the downlink signal coverage boundary, if the UE moving moves to the uplink signal coverage boundary, the RRU sector 2 also allocates the corresponding downlink transmission power to the UE according to the strength of the uplink signal, a higher downlink transmit power is allocated, which results in inefficient downlink power utilization by RRU sector 2, and the downlink performance of other UEs served by RRU sector 2 is reduced, and actually the UE moving is located closer to RRU sector 1, and the downlink transmission power provided by RRU sector 1 is enough to support its normal operation, and the downlink transmission power promoted by RRU sector 2 is not only not high in utilization rate, but also wastes the downlink power resource of RRU sector 2.
Disclosure of Invention
The technical problem to be solved by the present invention is to provide a method, an apparatus and a baseband processing unit for fine resource allocation, so as to improve the utilization efficiency of the baseband resources and the power resources of the base station.
The technical scheme adopted by the invention is that the method for finely distributing the resources comprises the following steps:
aiming at any target RRU sector in a logic cell, respectively comparing the uplink signal quality of any UE to the target RRU sector with the uplink signal quality of the UE to the rest RRU sectors in the logic cell one by one to obtain corresponding uplink signal quality difference; the logic cell is formed by combining more than two RRU sectors with equal pilot frequency transmitting power under one baseband processing unit; the target RRU sector is selected from RRU sectors except the RRU sector with the largest uplink load in the logic cell;
and if at least one uplink signal quality difference in the obtained uplink signal quality differences meets the set condition, only allocating uplink demodulation resources of the target RRU sector to the UE.
Further, before comparing the uplink signal quality one by one, the method further includes:
and detecting the uplink signal quality of the UE for each RRU sector in the logical cell in all the RRU sectors in the logical cell.
Further, the uplink Signal quality value is reflected by an SIR (Signal interference Ratio, Signal to interference Ratio) of an uplink channel.
Further, comparing the uplink signal quality of the UE for the target RRU sector with the uplink signal quality of the UE for the remaining RRU sectors in the logical cell one by one, to obtain corresponding uplink signal quality differences, including:
respectively subtracting the signal-to-interference ratios of the uplink channels of the other RRU sectors in the logic cell from the signal-to-interference ratio of the uplink channel of the UE in the target RRU sector to obtain corresponding uplink channel signal-to-interference ratio difference values;
the uplink signal quality difference meets the set conditions, and the method comprises the following steps:
and setting the signal-to-interference ratio difference of the uplink channels representing the quality difference of the uplink signals as delta SIR, and if Th is greater than or equal to delta SIR and greater than or equal to 0dB, wherein 6dB is greater than or equal to Th 0dB, indicating that the signal quality difference meets the set condition.
Further, the selecting, by the target RRU sector, from RRU sectors other than the RRU sector with the largest uplink load in the logical cell includes:
the target RRU sector is one or more RRU sectors in RRU sectors except the RRU sector with the largest uplink load in the logic cell.
Further, each RRU sector in the logical cell is a macro RRU sector.
Further, the method further comprises:
and calculating the quality difference of each uplink signal, wherein the target RRU sector and the corresponding neighbor RRU sector are required to be used, each uplink signal quality difference corresponds to one target RRU sector and one neighbor RRU sector, and downlink coding resources and downlink power resources of each neighbor RRU sector are allocated to the UE aiming at the neighbor RRU sector corresponding to the uplink signal quality difference meeting set conditions.
The invention also provides a device for finely distributing resources, which comprises the following components:
a comparing module, configured to compare, for any target RRU sector in one logical cell, uplink signal quality of any UE for the target RRU sector with uplink signal quality of the UE for the remaining RRU sectors in the logical cell one by one, respectively, to obtain a corresponding uplink signal quality difference; the logic cell is formed by combining more than two RRU sectors with equal pilot frequency transmitting power under one baseband processing unit; the target RRU sector is selected from RRU sectors except the RRU sector with the largest uplink load in the logic cell;
and the allocation module is used for allocating only the uplink demodulation resource of the target RRU sector to the UE if at least one uplink signal quality difference in the obtained uplink signal quality differences meets the set condition.
Further, the apparatus further includes:
a detecting module, configured to detect, in all RRU sectors in the logical cell, uplink signal quality of the UE for each RRU sector in the logical cell, respectively, and then invoke the comparing module.
Further, the quality value of the uplink signal is reflected by the SIR of the uplink channel.
Further, the comparing module is specifically configured to:
respectively subtracting the signal-to-interference ratios of the uplink channels of the other RRU sectors in the logic cell from the signal-to-interference ratio of the uplink channel of the UE in the target RRU sector to obtain corresponding uplink channel signal-to-interference ratio difference values;
the uplink signal quality difference meets the set conditions, and the method comprises the following steps:
and setting the signal-to-interference ratio difference of the uplink channels representing the quality difference of the uplink signals as delta SIR, and if Th is greater than or equal to delta SIR and greater than or equal to 0dB, wherein 6dB is greater than or equal to Th 0dB, indicating that the signal quality difference meets the set condition.
Further, the selecting, by the target RRU sector, from RRU sectors other than the RRU sector with the largest uplink load in the logical cell includes:
the target RRU sector is one or more RRU sectors in RRU sectors except the RRU sector with the largest uplink load in the logic cell.
Further, each RRU sector in the logical cell is a macro RRU sector.
Further, the allocation module is further configured to:
and calculating the quality difference of each uplink signal, wherein the target RRU sector and the corresponding neighbor RRU sector are required to be used, each uplink signal quality difference corresponds to one target RRU sector and one neighbor RRU sector, and downlink coding resources and downlink power resources of each neighbor RRU sector are allocated to the UE aiming at the neighbor RRU sector corresponding to the uplink signal quality difference meeting set conditions.
The invention also provides a baseband processing unit BBU, which comprises the device for finely distributing the resources.
By adopting the technical scheme, the invention at least has the following advantages:
according to the method, the device and the base band processing unit for finely distributing the resources, in a logic cell formed by combining RRU sectors with equal transmitting power under the same BBU, aiming at the condition that the uplink signal coverage and the downlink signal coverage of the adjacent RRU sectors are unbalanced due to unbalanced load between the adjacent RRU sectors, fine distribution is carried out on the BBU side of the base station, and the utilization efficiency of the base band resources and the power resources is improved. Specifically, for one RRU sector, for example, in the process of moving the UE to the target RRU, if the uplink signal quality of the UE meets the set condition, only the uplink demodulation resource of the RRU sector is allocated to the UE, but no downlink coding resource is allocated to the UE, that is, no downlink physical channel data is processed for the UE, so that the downlink baseband processing resource of the RRU is saved; on the other hand, downlink power resources are not allocated to the UE, so that the downlink power resources of the RRU are saved, thereby avoiding downlink power limitation in the RRU sector or downlink performance degradation of the user, saving downlink baseband processing resources and downlink power resources, and improving the overall performance effect of the logical cell.
Drawings
Fig. 1 is a schematic diagram illustrating a situation of load balancing of two RRU sectors in a logical cell in the prior art;
fig. 2 is a schematic diagram illustrating a situation of unbalanced load of two RRU sectors in one logical cell in the prior art;
FIG. 3 is a flowchart illustrating a method for fine resource allocation according to a first embodiment of the present invention;
FIG. 4 is a flowchart illustrating a method for refining resource allocation according to a second embodiment of the present invention;
FIG. 5 is a flowchart illustrating a method for refining resource allocation according to a third embodiment of the present invention;
FIG. 6 is a diagram illustrating an exemplary structure of an apparatus for fine resource allocation according to a fourth embodiment of the present invention;
FIG. 7 is a schematic diagram illustrating an apparatus for refining resource allocation according to a fifth embodiment of the present invention;
fig. 8 is a schematic diagram of resource allocation to a UE under the condition of unbalanced sector load of two RRUs in one logical cell according to an eighth embodiment of the present invention.
Detailed Description
To further explain the technical means and effects of the present invention adopted to achieve the intended purpose, the present invention will be described in detail with reference to the accompanying drawings and preferred embodiments.
A first embodiment of the present invention provides a method for finely allocating resources, as shown in fig. 3, including the following specific steps:
step S101, aiming at any target RRU sector in a logic cell, respectively comparing the uplink signal quality of any UE to the target RRU sector with the uplink signal quality of the UE to the rest RRU sectors in the logic cell one by one to obtain corresponding uplink signal quality difference; the logic cell is formed by combining more than two RRU sectors with equal pilot frequency transmitting power under one baseband processing unit; the target RRU sector is selected from RRU sectors except the RRU sector with the largest uplink load in the logic cell;
specifically, the uplink signal quality value is reflected by a signal-to-interference ratio SIR of an uplink channel.
In step S101, comparing the uplink signal quality of the target RRU sector by the UE with the uplink signal quality of the remaining RRU sectors in the logical cell by the UE one by one, to obtain corresponding uplink signal quality differences, including:
respectively subtracting the signal-to-interference ratios of the uplink channels of the other RRU sectors in the logic cell from the signal-to-interference ratio of the uplink channel of the UE in the target RRU sector to obtain corresponding uplink channel signal-to-interference ratio difference values;
in step S101, the uplink signal quality difference meets a set condition, and includes:
and setting the signal-to-interference ratio difference of the uplink channels representing the quality difference of the uplink signals as delta SIR, and if Th is greater than or equal to delta SIR and greater than or equal to 0dB, wherein 6dB is greater than or equal to Th 0dB, indicating that the signal quality difference meets the set condition.
Further, the selecting, by the target RRU sector, from RRU sectors other than the RRU sector with the largest uplink load in the logical cell includes:
the target RRU sector is one or more RRU sectors in RRU sectors except the RRU sector with the largest uplink load in the logic cell.
Step S102, if at least one uplink signal quality difference among the obtained uplink signal quality differences meets a set condition, only allocating uplink demodulation resources of the target RRU sector to the UE.
Specifically, in the embodiment of the present invention, only the uplink demodulation resource of the target RRU sector is allocated to the UE, but the downlink coding resource of the target RRU sector is not allocated to the UE, that is, the downlink physical channel data is not processed for the UE, so that the downlink baseband processing resource of the target RRU is saved; on the other hand, downlink power resources are not allocated to the UE, so that the downlink power resources of the target RRU are saved, thereby avoiding downlink power limitation in the sector of the target RRU or downlink performance degradation of the user, saving downlink baseband processing resources and downlink power resources, and improving the overall performance effect of the logical cell.
A second embodiment of the present invention is a method for refining resource allocation, which is substantially the same as the first embodiment, except that, as shown in fig. 4, before comparing uplink signal quality one by one in step S101, the method of this embodiment further includes the following specific steps:
step S100, in all RRU sectors in the logical cell, for any UE, detecting the uplink signal quality of the UE for each RRU sector in the logical cell. The uplink signal quality may be used for comparison in step S101.
In all embodiments of the present invention, each RRU sector in the logical cell may be a macro RRU sector.
A third embodiment of the present invention is a method for refining resource allocation, which is substantially the same as the first embodiment, except that as shown in fig. 5, the method of the present embodiment further includes the following specific steps:
step S103, since calculating each uplink signal quality difference requires using a target RRU sector and a corresponding neighbor RRU sector, each uplink signal quality difference corresponds to one target RRU sector and one neighbor RRU sector, and for the neighbor RRU sector corresponding to the uplink signal quality difference meeting the set condition, downlink coding resources and downlink power resources of each neighbor RRU sector are allocated to the UE.
Specifically, the uplink signal quality difference is a difference between the uplink signal quality of the UE for the target RRU sector and the uplink signal quality of the UE for the neighbor RRU sectors, and therefore, the target RRU sector and the corresponding neighbor RRU sectors are required to calculate each uplink signal quality difference.
In the prior art, after the target RRU starts to allocate uplink demodulation resources to the user UE, some of the original RRU sectors do not allocate downlink coding resources and downlink power resources to the user, and some of the original RRU sectors continue to allocate downlink coding resources and downlink power resources to the user, so as to ensure that the service of the user is performed normally, it is preferable that in this embodiment, the original serving RRU sectors, i.e., the neighboring RRU sectors, continue to allocate downlink coding resources and downlink power resources of the neighboring RRU sectors.
A fourth embodiment of the present invention, which is corresponding to the first embodiment, introduces an apparatus for refining resource allocation, as shown in fig. 6, including the following components:
1) a comparing module 301, configured to compare, for any target RRU sector in one logical cell, uplink signal quality of any UE for the target RRU sector with uplink signal quality of the UE for the remaining RRU sectors in the logical cell one by one, to obtain a corresponding uplink signal quality difference; the logic cell is formed by combining more than two RRU sectors with equal pilot frequency transmitting power under one baseband processing unit; the target RRU sector is selected from RRU sectors except the RRU sector with the largest uplink load in the logic cell;
specifically, the uplink signal quality value is reflected by an SIR of an uplink channel.
The comparing module 301 is specifically configured to:
respectively subtracting the signal-to-interference ratios of the uplink channels of the other RRU sectors in the logic cell from the signal-to-interference ratio of the uplink channel of the UE in the target RRU sector to obtain corresponding uplink channel signal-to-interference ratio difference values;
the uplink signal quality difference meets the set conditions, and the method comprises the following steps:
and setting the signal-to-interference ratio difference of the uplink channels representing the quality difference of the uplink signals as delta SIR, and if Th is greater than or equal to delta SIR and greater than or equal to 0dB, wherein 6dB is greater than or equal to Th 0dB, indicating that the signal quality difference meets the set condition.
Further, the selecting, by the target RRU sector, from RRU sectors other than the RRU sector with the largest uplink load in the logical cell includes:
the target RRU sector is one or more RRU sectors in RRU sectors except the RRU sector with the largest uplink load in the logic cell.
2) An allocating module 302, configured to allocate only the uplink demodulation resource of the target RRU sector to the UE if at least one uplink signal quality difference among the obtained uplink signal quality differences meets a set condition.
Specifically, the allocation module 302 of the embodiment of the present invention allocates only the uplink demodulation resource of the target RRU sector to the UE, but does not allocate the downlink coding resource of the target RRU sector to the UE, that is, does not process downlink physical channel data for the UE, so as to save the downlink baseband processing resource of the target RRU; on the other hand, downlink power resources are not allocated to the UE, so that the downlink power resources of the target RRU are saved, thereby avoiding downlink power limitation in the sector of the target RRU or downlink performance degradation of the user, saving downlink baseband processing resources and downlink power resources, and improving the overall performance effect of the logical cell.
A fifth embodiment of the present invention is a device for refining resource allocation corresponding to the second embodiment, and the device in this embodiment is substantially the same as the fourth embodiment, except that as shown in fig. 7, the device in this embodiment further includes the following components:
a detecting module 300, configured to detect, in all RRU sectors in the logical cell, for any UE, uplink signal quality of the UE for each RRU sector in the logical cell, and then invoke a comparing module 301.
A sixth embodiment of the present invention is a device for refining resource allocation corresponding to the third embodiment, and the device in this embodiment is substantially the same as the fourth embodiment, except that in the device in this embodiment, the allocating module 302 is further configured to:
and if it is required to use a target RRU sector and a corresponding neighbor RRU sector for calculating the uplink signal quality difference, each uplink signal quality difference corresponds to one target RRU sector and one neighbor RRU sector, and downlink coding resources and downlink power resources of each neighbor RRU sector are allocated to the UE aiming at the neighbor RRU sector corresponding to the uplink signal quality difference meeting set conditions.
A seventh embodiment of the present invention, a baseband processing unit BBU, can be understood as an entity device, and includes the device for finely allocating resources described in the third embodiment and the fourth embodiment.
An eighth embodiment of the present invention is, on the basis of the foregoing embodiments, to take two adjacent RRU sectors in a logical cell as an example, and describe an application example of the present invention with reference to fig. 8.
The embodiment of the invention can solve the problem of base station baseband resource and base station power resource waste in the RRU sector 2 when the user UE is positioned in the area between the uplink boundary and the downlink boundary of the RRU sector 2 under the condition that the uplink signal coverage and the downlink signal coverage of the RRU sector 1 and the RRU sector 2 in the same logic cell are unbalanced;
for convenience of description, it is assumed that the baseband subsystem includes an RRU sector 1 baseband module and an RRU sector 2 baseband module, and the radio frequency subsystem includes an RRU sector 1 radio frequency module and an RRU sector 2 radio frequency module. The baseband module and the radio frequency module of the RRU sector 1 and the RRU sector 2 both use the same downlink scrambling code for transmission.
In an initial situation, a user UE establishes a wireless connection with an RRU sector 1 of a logical cell, where a RRU sector 1 baseband module in a baseband subsystem and a RRU sector 1 radio frequency module in a radio frequency subsystem allocate corresponding baseband resources and power resources to the UE, and an RRU sector 2 baseband module in the baseband subsystem and an RRU sector 2 radio frequency module in the radio frequency subsystem do not allocate corresponding baseband resources and power resources to the UE. The baseband resource comprises a downlink coding resource and an uplink demodulation resource, and the power resource comprises a downlink power resource.
The method for finely distributing the resources comprises the following steps:
first, when the UE moves from RRU sector 1 to RRU sector 2, RRU sector 1 baseband module measures the uplink signal quality SIR of the user as SIR _1, and RRU sector 2 baseband module measures the uplink signal quality SIR of the user as SIR _ 2.
And secondly, the baseband subsystem compares SIR measured by the RRU sector 1 baseband module and the SIR measured by the RRU sector 2 baseband module at the same time, when Th is more than or equal to (SIR _ 2-SIR _1) and more than or equal to 0dB, wherein Th is a configurable threshold parameter, the value range of the Th is more than or equal to 6dB and more than 0dB, referring to fig. 7, the RRU sector 2 baseband module of the baseband subsystem allocates uplink demodulation resources for the user, but downlink coding resources are not allocated for the user, namely downlink physical channel data is not processed for the user so as to save downlink baseband processing resources of the RRU sector 2, and the RRU sector 2 radio frequency module of the radio frequency subsystem does not allocate downlink power resources for the user so as to save downlink power resources of the RRU sector 2.
According to the prior art, the RRU sector 1 baseband module of the baseband subsystem continues to allocate downlink coding resources and uplink demodulation resources to the user, and the RRU sector 1 radio frequency module of the radio frequency subsystem continues to allocate downlink power resources to the user. Still, the service to the user can be guaranteed, and at the same time, the downlink baseband processing resource and the downlink power resource are saved in the RRU sector 2.
Compared with the prior art, the method for finely distributing the resources has the advantages that the resource is effectively utilized, the limitation of downlink power or the reduction of the downlink performance of a user is avoided, the overall performance effect of a logic cell is improved, downlink baseband processing resources and downlink power resources are saved, and the utilization efficiency of the baseband resources and the downlink power resources is improved.
While the invention has been described in connection with specific embodiments thereof, it is to be understood that it is intended by the appended drawings and description that the invention may be embodied in other specific forms without departing from the spirit or scope of the invention.
Claims (15)
1. A method for refining resource allocation, comprising:
aiming at any target RRU sector in a logic cell, respectively comparing the uplink signal quality of any User Equipment (UE) to the target RRU sector with the uplink signal quality of the UE to the rest RRU sectors in the logic cell one by one to obtain corresponding uplink signal quality difference; the logic cell is formed by combining more than two RRU sectors with equal pilot frequency transmitting power under one baseband processing unit; the target RRU sector is selected from RRU sectors except the RRU sector with the largest uplink load in the logic cell;
and if at least one uplink signal quality difference in the obtained uplink signal quality differences meets the set condition, only allocating uplink demodulation resources of the target RRU sector to the UE.
2. The method for refining resource allocation according to claim 1, wherein before comparing the uplink signal quality one by one, the method further comprises:
and detecting the uplink signal quality of the UE for each RRU sector in the logical cell in all the RRU sectors in the logical cell.
3. The method for refining allocation of resources according to claim 1, wherein said uplink signal quality value is reflected by a signal-to-interference ratio, SIR, of an uplink channel.
4. The method of claim 3, wherein comparing the uplink signal quality of the UE for the target RRU sector with the uplink signal quality of the UE for the remaining RRU sectors in the logical cell one by one to obtain corresponding uplink signal quality differences comprises:
respectively subtracting the signal-to-interference ratios of the uplink channels of the other RRU sectors in the logic cell from the signal-to-interference ratio of the uplink channel of the UE in the target RRU sector to obtain corresponding uplink channel signal-to-interference ratio difference values;
the uplink signal quality difference meets the set conditions, and the method comprises the following steps:
and setting the signal-to-interference ratio difference of the uplink channels representing the quality difference of the uplink signals as delta SIR, and if Th is greater than or equal to delta SIR and greater than or equal to 0dB, wherein 6dB is greater than or equal to Th 0dB, indicating that the signal quality difference meets the set condition.
5. The method for refining resource allocation according to claim 1, wherein the selecting the target RRU sector from RRU sectors other than the RRU sector with the largest uplink load in the logical cell comprises:
the target RRU sector is one or more RRU sectors in RRU sectors except the RRU sector with the largest uplink load in the logic cell.
6. The method for refining allocation of resources according to claim 1, wherein each RRU sector in said logical cell is a macro RRU sector.
7. The method for refining the resource allocation according to any one of claims 1 to 6, further comprising:
and calculating the quality difference of each uplink signal, wherein the target RRU sector and the corresponding neighbor RRU sector are required to be used, each uplink signal quality difference corresponds to one target RRU sector and one neighbor RRU sector, and downlink coding resources and downlink power resources of each neighbor RRU sector are allocated to the UE aiming at the neighbor RRU sector corresponding to the uplink signal quality difference meeting set conditions.
8. An apparatus for refining allocation of resources, comprising:
a comparing module, configured to compare, for any target RRU sector in one logical cell, uplink signal quality of any UE for the target RRU sector with uplink signal quality of the UE for the remaining RRU sectors in the logical cell one by one, respectively, to obtain a corresponding uplink signal quality difference; the logic cell is formed by combining more than two RRU sectors with equal pilot frequency transmitting power under one baseband processing unit; the target RRU sector is selected from RRU sectors except the RRU sector with the largest uplink load in the logic cell;
and the allocation module is used for allocating only the uplink demodulation resource of the target RRU sector to the UE if at least one uplink signal quality difference in the obtained uplink signal quality differences meets the set condition.
9. The apparatus for refining allocation of resources according to claim 8, further comprising:
a detecting module, configured to detect, in all RRU sectors in the logical cell, uplink signal quality of the UE for each RRU sector in the logical cell, respectively, and then invoke the comparing module.
10. The apparatus for refining allocation of resources as claimed in claim 8, wherein said uplink signal quality value is reflected by SIR of uplink channel.
11. The apparatus for refining allocation of resources of claim 10, wherein the comparing module is specifically configured to:
respectively subtracting the signal-to-interference ratios of the uplink channels of the other RRU sectors in the logic cell from the signal-to-interference ratio of the uplink channel of the UE in the target RRU sector to obtain corresponding uplink channel signal-to-interference ratio difference values;
the uplink signal quality difference meets the set conditions, and the method comprises the following steps:
and setting the signal-to-interference ratio difference of the uplink channels representing the quality difference of the uplink signals as delta SIR, and if Th is greater than or equal to delta SIR and greater than or equal to 0dB, wherein 6dB is greater than or equal to Th 0dB, indicating that the signal quality difference meets the set condition.
12. The apparatus for refining resource allocation according to claim 8, wherein the target RRU sector is selected from RRU sectors other than the RRU sector with the largest uplink load in the logical cell, and comprises:
the target RRU sector is one or more RRU sectors in RRU sectors except the RRU sector with the largest uplink load in the logic cell.
13. The apparatus for refining allocation of resources of claim 8, wherein each RRU sector in the logical cell is a macro RRU sector.
14. The apparatus for refining allocation of resources according to any one of claims 8 to 13, wherein the allocation module is further configured to:
and calculating the quality difference of each uplink signal, wherein the target RRU sector and the corresponding neighbor RRU sector are required to be used, each uplink signal quality difference corresponds to one target RRU sector and one neighbor RRU sector, and downlink coding resources and downlink power resources of each neighbor RRU sector are allocated to the UE aiming at the neighbor RRU sector corresponding to the uplink signal quality difference meeting set conditions.
15. A baseband processing unit comprising the apparatus for refining allocated resources according to any one of claims 8 to 14.
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| CN201610139917.9A CN107182059B (en) | 2016-03-11 | 2016-03-11 | Method and device for finely distributing resources and baseband processing unit |
| PCT/CN2017/070696 WO2017152713A1 (en) | 2016-03-11 | 2017-01-10 | Resource allocation method and device, and baseband unit |
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| CN113709813A (en) * | 2021-09-03 | 2021-11-26 | 上海中兴易联通讯股份有限公司 | Method and system for combining NR small base station base bands |
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