WO2017143785A1

WO2017143785A1 - Method, device, and system for allocating resources based on wcdma heterogeneous network

Info

Publication number: WO2017143785A1
Application number: PCT/CN2016/101837
Authority: WO
Inventors: 詹建明; 张增杰; 霍燚; 刘涛; 梁昌裕; 王正辛; 余擎旗; 苑伟涛; 蒲迎春
Original assignee: 中兴通讯股份有限公司
Priority date: 2016-02-25
Filing date: 2016-10-12
Publication date: 2017-08-31
Also published as: CN107124765A

Abstract

Disclosed in the present invention are a method, a device, and a system for allocating resources based on a WCDMA heterogeneous network, which belong to the technical field of WCDMA heterogeneous network. The method comprises: measuring uplink signal quality signal to interference ratios of a UE in a micro-sector coverage and a macro-sector coverage, respectively; and allocating a baseband resource and a power resource to the UE according to the difference between the uplink signal quality signal to interference ratios of the UE in the micro-sector coverage and the macro-sector coverage as well as the maximum imbalance between the uplink and downlink of the micro-sector coverage and the macro-sector coverage. The present invention can turn downlink interference of the UE in an unbalanced area of the uplink coverage and downlink coverage into useful signals, such that the downlink power of the micro coverage is not limited, and the uplink baseband resource of the macro-sector coverage, the downlink baseband resource and downlink power resource of the micro-sector coverage can be saved, thereby improving the utilization of the baseband resource and power resource of a logical cell. (Figure 5)

Description

Resource allocation method, device and system based on WCDMA heterogeneous network

Technical field

The present invention relates to the field of heterogeneous network (Wetnet) of WCDMA (Wideband Code Division Multiple Access), and in particular, to a resource allocation method, device and system based on WCDMA heterogeneous network.

Background technique

With the rapid development of mobile broadband services in recent years, the data services of various 3GPP standard intelligent terminals (such as mobile phones, data cards, iPads, etc.) have presented spurt applications, directly leading to data traffic in hotspots and various mobile Internet-based App apps have shown an explosive growth trend. It is difficult to fully meet the requirements of the traditional macro cell performance. This requires a new network solution based on the traditional macro base station network. Therefore, a low-power radio remote module that deploys the same frequency in the macro cell appears. Resolve rapidly growing data traffic and a variety of APP applications based on mobile Internet applications.

These low-power remote modules are deployed in the macro cell to implement supplementary coverage of hotspots. In order to improve spectrum utilization, micro-sector coverage (low power coverage) and macro sector coverage adopt the same frequency networking scheme, and the UE is in the micro-fan. After the cell coverage and the macro sector coverage are moved, there is a soft handover signaling interaction between the base station and the UE, and correspondingly, the resource consumption of the number of cells on the RNC (Radio Network Controller) side is increased. The cost of resource management has increased. Referring to FIG. 1, in order to reduce the signaling exchange of the user and reduce the resource consumption of the RNC cell, the macro sector coverage and the micro sector coverage are usually combined into one logical cell, thereby fully utilizing the uplink of the macro sector and the micro sector. Coverage advantages and advantages of macro sector downlink coverage.

However, after the macro sector coverage and the micro sector coverage are combined into one logical cell, only the scenes of the uplink coverage and the downlink coverage balance of the macro sector coverage and the micro sector coverage are often considered. The scenario of uplink coverage and downlink coverage imbalance of macro sector coverage and micro sector coverage is not considered. Referring to FIG. 2, when the uplink coverage boundary is identified, the micro-sector is triggered to cover related baseband downlink resources and radio resource allocation, which may cause the downlink interference of the unbalanced area user to increase, and the downlink power of the micro-sector coverage is limited; Or affect the downlink performance of the user under the micro-sector coverage, and the downlink power utilization efficiency of the micro-sector coverage is low. As a result, the baseband resources and power resources of the macro base station and the micro base station are wasted by users in the uplink and downlink unbalanced areas of the merged logical cell.

Summary of the invention

In view of this, an object of the present invention is to provide a resource allocation method, apparatus, and system based on a WCDMA heterogeneous network, to solve the baseband of a macro base station and a micro base station for users in an uplink and downlink unbalanced area in a combined logical cell. Technical issues of wasted resources and power resources.

The technical solution adopted by the present invention to solve the above technical problems is as follows:

According to an aspect of the present invention, a resource allocation method based on a WCDMA heterogeneous network is provided, For a baseband unit, the method includes the following steps:

Combining macro sector coverage and micro sector coverage into one logical cell; wherein the baseband subsystem of the logical cell includes a macro sector baseband module and a micro sector baseband module, and the radio frequency subsystem includes a macro sector radio frequency module and a micro sector Radio frequency module;

After monitoring that the UE moves between the macro sector coverage and the micro sector coverage, notifying the logical cell according to the difference between the UE in the micro sector coverage and the uplink signal quality signal to interference ratio covered by the macro sector, and the macro Sector coverage and micro-sector coverage The uplink and downlink maximum imbalances provide fine-grained allocation of baseband resources and power resources for the UE.

Preferably, the above method further comprises:

After detecting that the UE establishes a wireless connection with the logical cell, the logical cell is notified to allocate baseband resources and power resources for UE initialization.

According to another aspect of the present invention, a WCDMA heterogeneous network-based resource allocation method is provided for a logical cell, and the method includes the following steps:

Measure the uplink signal quality signal to interference ratio of the UE in the micro sector coverage and the uplink signal quality signal to interference ratio in the macro sector coverage, respectively;

Allocating baseband resources and power resources to the UE according to the difference between the UE's micro-sector coverage and the uplink signal quality signal-to-interference ratio covered by the macro sector, and the macro sector coverage and the micro-sector coverage uplink and downlink maximum imbalance. .

Preferably, the uplink signal quality signal to interference ratio of the UE covering the micro sector and the uplink signal quality signal to interference ratio covered by the macro sector are respectively measured:

The micro sector baseband module measures the uplink signal quality signal to interference ratio of the UE in the micro sector coverage, and the macro sector baseband module measures the uplink signal quality signal to interference ratio of the UE in the macro sector coverage.

Preferably, the UE is finely allocated according to the difference between the UE's micro-sector coverage and the uplink signal quality signal-to-interference ratio covered by the macro sector, and the macro sector coverage and the micro-sector coverage uplink and downlink maximum imbalance. Baseband resources and power resources include:

When the DU ≥ (SIRs - SIRm) > Th, the macro sector baseband module allocates downlink coding resources for the UE, the macro sector radio frequency module allocates downlink power resources for the UE, and the micro sector coverage baseband module allocates uplink demodulation resources for the UE;

Wherein, DU indicates macro sector coverage and micro-sector coverage uplink and downlink maximum imbalance, SIRs indicate uplink signal quality signal-to-interference ratio of UE coverage in micro-sector, and SIRm indicates uplink signal quality of UE coverage in macro sector Signal-to-interference ratio, Th represents the uplink signal quality signal-to-interference ratio difference threshold, and 6dB≥Th>0dB.

According to still another aspect of the present invention, a WCDMA heterogeneous network-based resource allocation apparatus is provided for use in a baseband unit, the apparatus comprising:

The merging unit is configured to combine the macro sector coverage and the micro sector coverage into one logical cell; wherein the baseband subsystem of the logical cell includes a macro sector baseband module and a micro sector baseband module, and the radio frequency subsystem includes a macro sector radio frequency Module and micro sector RF module;

a monitoring unit configured to monitor whether a UE moves between a macro sector coverage and a micro sector coverage;

a notification unit, configured to notify the logic when the UE is monitored to move between the macro sector coverage and the micro sector coverage The cell refines the baseband according to the difference between the UE's micro-sector coverage and the uplink signal quality signal-to-interference ratio covered by the macro sector, and the maximum imbalance between the macro sector coverage and the micro-sector coverage uplink and downlink. Resources and power resources.

Preferably, the monitoring unit is further configured to: monitor whether a UE establishes a wireless connection with the logical cell; correspondingly, the notification unit is further configured to: notify the logical cell to allocate baseband resources for the UE initialization after detecting that the UE establishes a wireless connection with the logical cell And power resources.

According to still another aspect of the present invention, a WCDMA heterogeneous network-based resource allocation apparatus is provided, which is applied to a logical cell, and the apparatus includes:

a measuring unit, which respectively measures an uplink signal quality signal to interference ratio covered by the UE in the micro sector and an uplink signal quality signal to interference ratio covered in the macro sector;

The processing unit is configured to allocate the UE according to a difference between the UE in the micro sector coverage and the uplink signal quality signal to interference ratio covered by the macro sector, and the macro sector coverage and the micro sector coverage uplink and downlink maximum imbalance Baseband resources and power resources.

Preferably, the measuring unit is specifically configured to:

The micro-sector baseband module is used to measure the uplink signal quality signal to interference ratio of the UE in the micro sector coverage, and the macro sector baseband module is used to measure the uplink signal quality signal to interference ratio of the UE in the macro sector coverage.

Preferably, the processing unit is specifically configured to: when DU≥(SIRs−SIRm)>Th, the macro sector baseband module allocates downlink coding resources for the UE, and the macro sector radio frequency module allocates downlink power resources for the UE, and the micro sector covers the baseband. The module allocates an uplink demodulation resource for the UE;

Wherein, DU indicates macro sector coverage and micro-sector coverage uplink and downlink maximum imbalance, SIRm indicates uplink signal quality signal-to-interference ratio of UE coverage in macro sector, and SIRs indicates uplink of micro-sector coverage of UE Signal quality signal to interference ratio, Th represents the uplink signal quality signal to interference ratio difference threshold, and 6dB ≥ Th > 0dB.

According to still another aspect of the present invention, a WCDMA heterogeneous network-based resource allocation system is provided, the system comprising a baseband unit and a logical cell, wherein the baseband unit comprises the foregoing WCDMA heterogeneous network-based resource allocation device; the logical cell includes The above-mentioned resource allocation device based on WCDMA heterogeneous network.

The method, device and system provided by the present invention, by using macro-sector coverage and micro-sector coverage uplink service quality signal-to-interference ratio difference for UE, and macro-sector coverage and micro-sector coverage on uplink and downlink maximum imbalance By performing fine-grained allocation of baseband resources and power resources, the downlink interference of the uplink coverage and the downlink coverage unbalanced area UE can be changed into a useful signal, so that the downlink power of the micro-coverage is not limited, and the uplink baseband resources covered by the macro sector can be saved. The downlink baseband resource and the downlink power resource covered by the micro sector, thereby improving the utilization of the baseband resource and the power resource of the macro base station and the micro base station.

DRAWINGS

Figure 1 is a schematic diagram of the combination of macro sector coverage and micro sector coverage into one logical cell.

FIG. 2 is a schematic diagram of resource allocation for users in an uplink and downlink coverage imbalance area in the related art.

FIG. 3 is a flowchart of a WCDMA heterogeneous network-based resource allocation method applied to a baseband unit according to Embodiment 1 of the present invention.

FIG. 4 is a schematic diagram of resource allocation for users in an uplink and downlink coverage unbalanced area according to an embodiment of the present invention.

FIG. 5 is a flowchart of a WCDMA heterogeneous network-based resource allocation method applied to a logical cell according to Embodiment 2 of the present invention.

FIG. 6 is a flowchart of a method for resource allocation based on a WCDMA heterogeneous network according to a preferred embodiment of the present invention.

FIG. 7 is a block diagram of a resource allocation apparatus based on a WCDMA heterogeneous network according to Embodiment 4 of the present invention.

FIG. 8 is a block diagram of a resource allocation apparatus based on a WCDMA heterogeneous network according to Embodiment 5 of the present invention.

The implementation, functional features, and advantages of the present invention will be further described in conjunction with the embodiments.

detailed description

The present invention will be further described in detail below with reference to the accompanying drawings and embodiments, in order to make the present invention. It is understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Embodiment 1

As shown in FIG. 3, a resource allocation method based on a WCDMA heterogeneous network according to an embodiment of the present invention is applied to a baseband unit, and the method includes the following steps:

S302. Combine the macro sector coverage and the micro sector coverage into one logical cell.

Specifically, a macro sector coverage and a micro sector coverage as shown in FIG. 1 are combined into one logical unit. The logical cell sets a corresponding baseband subsystem and a radio frequency subsystem. The baseband subsystem includes a macro sector baseband module and a micro sector baseband module, and the radio frequency subsystem includes a macro sector radio frequency module and a micro sector radio frequency module. In order to improve spectrum utilization, the macro sector baseband module, the micro sector baseband module, the macro sector radio frequency module, and the micro sector radio frequency module under one logical cell are all transmitted using the same downlink scrambling code.

In the initial situation, after the baseband unit detects that the UE establishes a wireless connection with the logical cell, the base logical unit is notified to allocate baseband resources and power resources for the UE initialization. Specifically, the macro sector baseband module allocates a baseband resource to the UE, and the macro sector radio frequency module allocates a power resource to the UE. That is, the macro sector baseband module of the baseband subsystem and the macro sector radio frequency module of the radio frequency subsystem allocate corresponding baseband resources and power resources to the UE, the baseband subsystem micro sector baseband module and the radio frequency subsystem micro sector radio frequency The module does not allocate baseband resources and power resources for the UE.

S304. After monitoring that the UE moves between the macro sector coverage and the micro-sector coverage, notify the logical cell according to the difference between the uplink signal quality signal to interference ratio of the UE in the micro sector coverage and the macro sector coverage, and the macro sector. The coverage and micro-sector coverage uplink and downlink maximum imbalances are used to finely allocate baseband resources and power resources for the UE.

Preferably, the area in which the logical cell is notified to move between the preset threshold and the uplink and downlink maximum imbalance between the UE and the uplink signal quality signal to interference ratio covered by the macro sector coverage and the macro sector coverage is notified. The macro sector baseband module allocates downlink coding resources for the UE, the macro sector radio frequency module allocates downlink power resources for the UE, and the micro sector coverage baseband module allocates uplink demodulation resources for the UE.

Specifically, as shown in FIG. 2, it is a schematic diagram of resource allocation for users in the uplink and downlink coverage imbalance area in the conventional technology. In order to save the baseband resources and the downlink power resources of the uplink and downlink services, the traditional technology only considers the scenario of balancing the uplink coverage and the downlink coverage, and does not consider the scenario where the uplink coverage and the downlink coverage are unbalanced, for example, when the uplink is identified. When the boundary is covered, the downlink coverage resource and the radio resource allocation of the micro-coverage sector are triggered, which causes the micro-sector to cover the downlink baseband resource waste. The power resource consumption is too large, resulting in limited power resources. The more users in the unbalanced area, the micro-fan The more serious the area coverage baseband resources are wasted, the more severe the micro-sector coverage power resources are limited. In order to fully utilize the advantages of the uplink coverage of the macro and micro sector coverage and the downlink coverage of the macro sector coverage, the embodiments of the present invention are directed to the advantages of the macro base station and the micro base station, as shown in FIG. 4, when DU≥(SIRs–SIRm) In the case of Th, the macro sector baseband module allocates downlink coding resources to the UE, the macro sector radio frequency module allocates downlink power resources to the UE, and the micro sector coverage baseband module allocates uplink demodulation resources to the UE; wherein, DU (Downlink Uplink) indicates The macro sector coverage and the micro sector cover the uplink and downlink maximum imbalance, the SIRm represents the uplink signal quality signal to interference ratio of the UE in the macro sector coverage, and the SIRs indicate the uplink signal quality signal of the UE in the micro sector coverage. Ratio, Th represents the uplink signal quality signal to interference ratio difference threshold, and 6dB ≥ Th > 0dB. Compared with the above-mentioned line coverage boundary of FIG. 3, the downlink interference of the uplink coverage and the downlink coverage imbalance area UE can be changed into a useful signal, so that the downlink power of the micro coverage is not limited, which saves more. The uplink baseband resource covered by the macro sector and the downlink baseband resource and the downlink power resource covered by the micro sector are saved, thereby improving the utilization of the baseband resource and the power resource of the macro base station and the micro base station.

Embodiment 2

As shown in FIG. 5, a resource allocation method based on a WCDMA heterogeneous network is provided in a logical cell, and the method includes the following steps:

S502. Measure the uplink signal quality signal to interference ratio of the UE in the micro sector coverage and the uplink signal quality signal to interference ratio in the macro sector coverage, respectively.

Specifically, the step S502 further includes: the macro sector baseband module measures the uplink signal quality signal to interference ratio of the UE in the macro sector coverage, and the micro sector baseband module measures the uplink signal quality signal to interference ratio of the UE in the micro sector coverage. .

S504. Perform fine-grained baseband allocation for the UE according to the difference between the UE's micro-sector coverage and the uplink signal quality signal-to-interference ratio covered by the macro sector, and the maximum imbalance between the macro sector coverage and the micro-sector coverage. Resources and power resources.

In some preferred embodiments, the step S504 further includes: when the DU ≥ (SIRs - SIRm) > Th, the macro sector baseband module allocates a downlink coding resource to the UE, and the macro sector radio frequency module allocates a downlink power resource to the UE, The micro-sector coverage baseband module allocates uplink demodulation resources for the UE; wherein, DU represents macro sector coverage and micro-sector coverage uplink and downlink maximum imbalance, and SIRm represents uplink signal quality signal coverage of the UE in macro sector coverage. Ratio, SIRs represents the uplink signal quality signal to interference ratio of the UE in the micro sector coverage, and Th represents the uplink signal quality signal to interference ratio difference threshold, and 6 dB ≥ Th > 0 dB.

Specifically, as shown in FIG. 3, it is a schematic diagram of resource allocation for users in the uplink and downlink coverage imbalance area in the conventional technology. In order to save the baseband resources and the downlink power resources of the uplink and downlink services, the traditional technology only considers the scenario of balancing the uplink coverage and the downlink coverage, and does not consider the scenario where the uplink coverage and the downlink coverage are unbalanced, for example, when the uplink is identified. When the boundary is covered, the downlink and micro-coverage related baseband downlink resources and radio frequency resource allocation are triggered. This causes the micro-sector to cover the downlink baseband resource waste. The power resource consumption is too large, resulting in limited power resources. The more users in the unbalanced area, the micro-sector The more serious the waste of covering the baseband resources, the more severe the micro-sector coverage power resources are limited. In order to fully utilize the advantages of the uplink coverage of the macro and micro sector coverage and the downlink coverage of the macro sector coverage, the embodiments of the present invention are directed to the advantages of the macro base station and the micro base station, as shown in FIG. 4, when DU≥(SIRs–SIRm) >Th, the macro sector baseband module allocates downlink coding resources for the UE, the macro sector radio frequency module allocates downlink power resources for the UE, and the micro sector coverage baseband module allocates uplink demodulation resources for the UE; wherein, DU indicates macro sector coverage And the micro-sector covers the uplink and downlink maximum imbalance, SIRm represents the uplink signal quality signal-to-interference ratio of the UE in the macro sector coverage, and SIRs represents the uplink signal quality signal-to-interference ratio of the UE in the micro-sector coverage, and Th represents Uplink signal quality signal to interference ratio difference threshold, and 6dB≥Th>0dB. That is, when the UE moves to the UE, the difference between the uplink signal quality signal to interference ratio of the micro sector coverage and the macro sector coverage is between the preset threshold parameter and the macro sector coverage and the micro sector coverage. When the area between the balances is balanced, the macro sector baseband module of the baseband subsystem continues to allocate downlink coding resources for the user, but does not allocate uplink traffic channel demodulation resources for the user, that is, does not process related uplink physical channel data (upstream DPCCH) The channel is excluded, thereby saving macro coverage of the uplink baseband processing resources; the macro sector radio module of the radio subsystem continues to allocate downlink power resources for the user. The micro-sector baseband module of the baseband subsystem allocates the uplink demodulation resource to the user, but does not allocate the downlink coding resource for the user, that is, does not process the downlink physical channel data for the user, thereby saving the micro-coverage downlink baseband processing resource, the radio frequency sub- The system's micro-sector radio module does not allocate downlink power resources for the user, thereby saving micro-covered downlink power resources. This improves the overall performance of the logical cell and improves the utilization efficiency of the baseband resources and downlink power resources of the macro base station and the micro base station.

Embodiment 3

As shown in FIG. 6, a resource allocation method based on a WCDMA heterogeneous network according to a preferred embodiment of the present invention includes the following steps:

S602. The baseband unit combines macro sector coverage and micro sector coverage into one logical cell.

S604. The baseband unit detects that the UE establishes a wireless connection with the logical cell, and notifies the logical cell to initialize the allocated baseband resource and the power resource.

S606. The macro sector baseband module allocates a baseband resource to the UE, and the macro sector radio frequency module allocates a function to the UE. Rate resources.

S608. After detecting that the UE moves between the macro sector coverage and the micro sector coverage, notify the logical cell to perform fine allocation of the baseband resource and the power resource for the UE.

S610. The macro sector baseband module measures an uplink signal quality signal to interference ratio covered by the UE in the macro sector, and the micro sector baseband module measures an uplink signal quality signal to interference ratio of the UE in the micro sector coverage.

S612. When a difference between an uplink signal quality signal to interference ratio of the UE in the micro sector coverage and the macro sector coverage is between a preset threshold and an uplink and downlink maximum imbalance, the macro sector baseband module is The UE allocates downlink coding resources, and the macro sector radio module allocates downlink power resources for the UE, and the micro sector coverage baseband module allocates uplink demodulation resources for the UE.

In the embodiment of the present invention, the macro base station allocates baseband resources and power resources to the UE during initialization, and moves the uplink signal quality signal to the micro sector coverage and the macro sector coverage between the macro sector coverage and the micro sector coverage. When the ratio of the difference is between the preset threshold and the maximum imbalance between the uplink and downlink, the macro sector baseband module of the baseband subsystem continues to allocate downlink coding resources for the user, but does not allocate uplink for the user. The service channel demodulates resources, that is, does not process related uplink physical channel data (except for the uplink DPCCH channel), thereby saving macro coverage of uplink baseband processing resources; the macro sector radio module of the radio frequency subsystem continues to allocate downlink power resources for the user. The micro-sector baseband module of the baseband subsystem allocates the uplink demodulation resource to the user, but does not allocate the downlink coding resource for the user, that is, does not process the downlink physical channel data for the user, thereby saving the micro-coverage downlink baseband processing resource, the radio frequency sub- The system's micro-sector radio module does not allocate downlink power resources for the user, thereby saving micro-covered downlink power resources. This improves the overall performance of the logical cell and improves the utilization efficiency of the baseband resources and downlink power resources of the macro base station and the micro base station.

Embodiment 4

As shown in FIG. 7, a resource allocation apparatus based on a WCDMA heterogeneous network is provided in a baseband unit, and the apparatus includes a merging unit 101, a monitoring unit 102, and a notification unit 103, where:

The merging unit 101 is configured to combine the macro sector coverage and the micro sector coverage into one logical cell; wherein the baseband subsystem of the logical cell comprises a macro sector baseband module and a micro sector baseband module, and the radio frequency subsystem comprises a macro sector RF module and micro sector RF module.

Specifically, a macro sector coverage and a micro sector coverage as shown in FIG. 2 are combined into one logical unit. In order to improve spectrum utilization, the macro sector baseband module, the micro sector baseband module, the macro sector radio frequency module, and the micro sector radio frequency module under one logical cell are all transmitted using the same downlink scrambling code.

The monitoring unit 102 is configured to monitor whether there is a UE moving between the macro sector coverage and the micro sector coverage.

The notifying unit 103 is configured to notify the logical cell according to the difference between the UE in the micro sector coverage and the uplink signal quality signal to interference ratio in the macro sector coverage after monitoring that the UE moves between the macro sector coverage and the micro sector coverage. The value, as well as the macro sector coverage and the micro-sector coverage uplink and downlink maximum imbalance, are fine-grained allocation baseband resources and power resources for the UE.

In other preferred embodiments, the monitoring unit 20 is further configured to monitor whether a UE establishes a wireless connection with the logical cell. Correspondingly, the notification unit 103 is further configured to: after monitoring that the UE establishes a wireless connection with the logical cell, notify the logical cell UE to initialize the allocated baseband resource and the power resource. That is, in the initial situation, when the baseband unit detects that the UE establishes a wireless connection with the logical cell, the macro sector baseband module is notified to allocate baseband resources to the UE, and the macro sector radio frequency module allocates power resources to the UE. That is, the macro sector baseband module of the baseband subsystem and the macro sector radio frequency module of the radio frequency subsystem allocate corresponding baseband resources and power resources to the UE, the baseband subsystem micro sector baseband module and the radio frequency subsystem micro sector radio frequency module. The baseband resource and power resources are not allocated to the UE.

Embodiment 4

As shown in FIG. 7, a resource allocation apparatus based on a WCDMA heterogeneous network is provided in a logical cell, and the apparatus includes a receiving unit 201, a measuring unit 202, and a processing unit 203, where:

The measuring unit 202 respectively measures an uplink signal quality signal to interference ratio covered by the UE in the micro sector and an uplink signal quality signal to interference ratio covered in the macro sector.

Specifically, the measuring unit 202 is specifically configured to: measure, by using a macro sector baseband module, an uplink signal quality signal to interference ratio covered by the UE in a macro sector, and measure, by using a micro sector baseband module, an uplink signal quality of the UE in micro sector coverage. Letter to dry ratio.

The processing unit 203 is configured to perform refinement according to the difference between the uplink signal quality signal to interference ratio of the UE in the micro sector coverage and the micro sector coverage, and the macro sector coverage and the micro sector coverage uplink and downlink maximum imbalance degree UE Allocation of baseband resources and power resources.

Preferably, the processing unit 30 is specifically configured to: when the DU≥(SIRs−SIRm)>Th, the macro sector baseband module allocates a downlink coding resource to the UE, and the macro sector radio frequency module allocates a downlink power resource to the UE, and the micro sector coverage The baseband module allocates uplink demodulation resources for the UE; wherein, DU indicates macro sector coverage and micro sector coverage uplink and downlink maximum imbalance, and SIRm indicates uplink signal quality signal to interference ratio of the UE in macro sector coverage, and SIRs indicates The uplink signal quality signal to interference ratio of the UE in the micro sector coverage, and Th represents the uplink signal quality signal to interference ratio difference threshold, and 6 dB≥Th>0 dB.

In the embodiment of the present invention, the macro base station allocates baseband resources and power resources to the UE during initialization, and moves the uplink signal quality signal to the micro sector coverage and the macro sector coverage between the macro sector coverage and the micro sector coverage. When the ratio of the difference is between the preset threshold and the maximum imbalance between the uplink and downlink, the macro sector baseband module of the baseband subsystem continues to allocate downlink coding resources for the user, but does not allocate uplink for the user. The service channel demodulates resources, that is, does not process related uplink physical channel data (except for the uplink DPCCH channel), thereby saving macro coverage of uplink baseband processing resources; the macro sector radio module of the radio frequency subsystem continues to allocate downlink power resources for the user. The micro-sector baseband module of the baseband subsystem allocates the uplink demodulation resource to the user, but does not allocate the downlink coding resource for the user, that is, does not process the downlink physical channel data for the user, thereby saving the micro-coverage downlink baseband processing resource, the radio frequency sub- The system's micro-sector RF module does not allocate downlink power resources to the user, thereby saving micro-coverage. Downstream power resources.

In addition, the present invention further provides a system comprising a baseband unit and a logical cell, the baseband unit comprising the WCDMA heterogeneous network-based resource allocation apparatus of the foregoing third embodiment; the logical cell comprising the WCDMA heterogeneous according to the fourth embodiment Network resource allocation device.

It should be noted that the technical features in the foregoing method embodiments are applicable in the embodiments of the device and the system, and are not repeatedly described.

The method, device and system provided by the present invention are fine-grained by the UE for macro-sector coverage and micro-sector coverage uplink service quality SIR difference size, and macro sector coverage and micro-sector coverage upper and lower downlink maximum imbalance By assigning baseband resources and power resources, the downlink interference of the uplink coverage and the downlink coverage unbalanced area UE can be changed into a useful signal, so that the downlink power of the micro coverage is not limited, and the uplink baseband resources and the micro-sector covered by the macro sector can be saved. The downlink baseband resources and downlink power resources covered by the area improve the utilization of baseband resources and power resources of the macro base station and the micro base station.

A person of ordinary skill in the art can understand that all or part of the steps in implementing the above embodiments may be controlled by a program to control related hardware, and the program may be stored in a computer readable storage medium, the storage. Media, such as ROM/RAM, disk, CD, etc.

The units such as the merging unit, the monitoring unit, the notification unit, the receiving unit, the measuring unit, and the processing unit may include hardware components, software modules, or a combination of hardware and software. The same unit may be implemented by the same hardware/software or by a combination of different hardware/software.

Industrial applicability

The present invention relates to the WCDMA (Wideband Code Division Multiple Access) heterogeneous network (Hetnet) field, to achieve uplink baseband resources for macro sector coverage and downlink baseband resources and downlink for micro sector coverage. Power resources, thereby improving the utilization of baseband resources and power resources of macro base stations and micro base stations. The preferred embodiments of the present invention have been described above with reference to the drawings, and are not intended to limit the scope of the invention. Any modifications, equivalent substitutions and improvements made by those skilled in the art without departing from the scope and spirit of the invention are intended to be included within the scope of the invention.

Claims

A resource allocation method based on WCDMA heterogeneous network is applied to a baseband unit, and the method comprises the following steps:

Combining macro sector coverage and micro sector coverage into one logical cell; wherein the baseband subsystem of the logical cell includes a macro sector baseband module and a micro sector baseband module, and the radio frequency subsystem includes a macro sector radio frequency module and a micro Sector RF module;

After monitoring that the UE moves between the macro sector coverage and the micro sector coverage, notifying the logical cell according to the uplink signal of the UE covering the micro sector and covering the macro sector The difference between the quality signal to interference ratio, and the macro sector coverage and the micro sector coverage uplink and downlink maximum imbalance are fine-grained allocation of baseband resources and power resources for the UE.
The WCDMA heterogeneous network-based resource allocation method according to claim 1, wherein the method further comprises:

After detecting that the UE establishes a wireless connection with the logical cell, the logical cell is notified to allocate baseband resources and power resources for UE initialization.
A resource allocation method based on a WCDMA heterogeneous network is applied to a logical cell, and the method includes the following steps:

Measure the uplink signal quality signal to interference ratio of the UE in the micro sector coverage and the uplink signal quality signal to interference ratio in the macro sector coverage, respectively;

According to the difference between the UE's micro-sector coverage and the uplink signal quality signal-to-interference ratio covered by the macro sector, and the maximum imbalance between the macro sector coverage and the micro-sector coverage uplink and downlink. The UE allocates baseband resources and power resources.
The WCDMA heterogeneous network-based resource allocation method according to claim 3, wherein said measuring an uplink signal quality signal to interference ratio of said UE in said micro sector coverage and said coverage in said macro sector The uplink signal quality signal to interference ratio includes:

The micro sector baseband module measures an uplink signal quality signal to interference ratio of the UE in the micro sector coverage, and the macro sector baseband module measures an uplink signal quality of the UE covered by the macro sector. Letter to dry ratio.
The WCDMA heterogeneous network-based resource allocation method according to claim 3, wherein said difference between said UE based on said micro-sector coverage and an uplink signal quality signal-to-interference ratio covered by said macro sector And the macro-sector coverage and the micro-sector coverage uplink and downlink maximum imbalances, the fine-bandwidth allocation of baseband resources and power resources for the UE includes:

The macro sector baseband module allocates a downlink coding resource to the UE, and the macro sector radio frequency module allocates a downlink power resource to the UE, where the micro sector coverage is performed when DU≥(SIRs−SIRm)>Th The baseband module allocates an uplink demodulation resource to the UE;

Wherein, DU indicates that the macro sector coverage and the micro sector cover uplink and downlink maximum imbalance, SIRs indicate an uplink signal quality signal to interference ratio of the UE in micro sector coverage, and SIRm indicates that the UE is in Macro fan The uplink signal quality signal-to-interference ratio covered by the area, Th represents the uplink signal quality signal-to-interference ratio difference threshold, and 6dB≥Th>0dB.
A resource allocation device based on a WCDMA heterogeneous network, applied to a baseband unit, the device comprising:

a merging unit, configured to combine the macro sector coverage and the micro sector coverage into one logical cell; wherein the baseband subsystem of the logical cell comprises a macro sector baseband module and a micro sector baseband module, and the radio frequency subsystem includes a macro fan Area RF module and micro sector RF module;

a monitoring unit configured to monitor whether there is a UE moving between the macro sector coverage and the micro sector coverage;

a notifying unit, configured to notify the logical cell to cover the micro sector according to the UE and to be in the macro fan after monitoring that the UE moves between the macro sector coverage and the micro sector coverage The difference between the uplink signal quality signal to interference ratio covered by the area, and the maximum imbalance between the macro sector coverage and the micro sector coverage uplink and downlink are fine-grained allocation of baseband resources and power resources for the UE.
The WCDMA heterogeneous network-based resource allocation apparatus according to claim 6, wherein the monitoring unit is further configured to: monitor whether a UE establishes a wireless connection with the logical cell; correspondingly, the notification unit is further configured to After the UE is monitored to establish a wireless connection with the logical cell, the logical cell is notified to allocate baseband resources and power resources for UE initialization.
A resource allocation device based on a WCDMA heterogeneous network should be set as a logical cell, wherein the device includes:

a measuring unit, respectively measuring an uplink signal quality signal to interference ratio covered by the UE in a micro sector and an uplink signal quality signal to interference ratio covered by the macro sector;

a processing unit, configured to: according to a difference between an uplink signal quality signal to interference ratio covered by the UE in the micro sector coverage and an uplink signal quality covered by the macro sector, and a maximum downlink downlink and a micro sector coverage The imbalance allocates baseband resources and power resources to the UE.
The WCDMA heterogeneous network-based resource allocation apparatus according to claim 8, wherein the measuring unit is configured to:

Measuring, by the micro sector baseband module, an uplink signal quality signal to interference ratio of the UE in the micro sector coverage, and using the macro sector baseband module to measure an uplink of the UE in the macro sector coverage Signal quality signal to interference ratio.
The WCDMA heterogeneous network-based resource allocation apparatus according to claim 8 or 9, wherein the processing unit is configured to:

The macro sector baseband module allocates a downlink coding resource to the UE, and the macro sector radio frequency module allocates a downlink power resource to the UE, where the micro sector coverage is performed when DU≥(SIRs−SIRm)>Th The baseband module allocates an uplink demodulation resource to the UE;

Wherein, DU indicates that the macro sector coverage and the micro sector cover uplink and downlink maximum imbalance, SIRm indicates an uplink signal quality signal to interference ratio covered by the UE in a macro sector, and SIRs indicates that the UE is in Micro fan The uplink signal quality signal-to-interference ratio covered by the area, Th represents the uplink signal quality signal-to-interference ratio difference threshold, and 6dB≥Th>0dB.
A resource allocation system based on a WCDMA heterogeneous network, the system comprising a baseband unit and a logical cell, the baseband unit comprising the WCDMA heterogeneous network-based resource allocation apparatus according to any one of claims 6-10; The cell includes a resource allocation device based on a WCDMA heterogeneous network.