CN112822783B - Resource scheduling method, device and system - Google Patents
Resource scheduling method, device and system Download PDFInfo
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- CN112822783B CN112822783B CN202011624723.0A CN202011624723A CN112822783B CN 112822783 B CN112822783 B CN 112822783B CN 202011624723 A CN202011624723 A CN 202011624723A CN 112822783 B CN112822783 B CN 112822783B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/005—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
- H04B1/0053—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with common antenna for more than one band
- H04B1/0057—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with common antenna for more than one band using diplexing or multiplexing filters for selecting the desired band
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/535—Allocation or scheduling criteria for wireless resources based on resource usage policies
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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
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Abstract
The invention discloses a resource scheduling method, which comprises the following steps: a multi-stage filter resource pool is arranged between the CPRI/ECPRI and the antenna channel, each stage of filter resource pool comprises different types of filters, and the adjacent stages of filter resource pools are connected by adopting full mapping; obtaining a carrier channel building instruction, wherein the instruction comprises carrier channel building condition parameters; selecting matched filters from the filter resource pools of all levels according to the construction condition parameters; and combining the selected filter and the connection channel thereof based on the full mapping connection between the resource pools of the filters at all levels to complete the construction of the corresponding carrier channel. Each path of carrier channel can accurately combine the filters required by the carrier channel according to the requirements of a carrier scene; the order of the prototype filter can be selected according to the requirement of a carrier scene, and the low-rate baseband carrier can use the prototype filter with fewer orders, so that the order of the filter is reduced, and the resource consumption is reduced; each path of carrier channel accurately selects filter resources, so that the power consumption is reduced.
Description
Technical Field
The present invention relates to the field of wireless communication technologies, and in particular, to a method, an apparatus, and a system for resource scheduling.
Background
A wireless communication device generally needs to support multiple antenna carrier system scenarios, such as a multi-mode scenario in which 5G NR (New Radio) and Long Term Evolution (LTE) coexist. Therefore, it is a great challenge to design, which needs to flexibly support various carrier systems and optimize resources.
A Digital Up Converter (DUC)/Digital Down Converter (DDC) Unit of a Remote Radio Unit (RRU) device implements Up-conversion of a downlink and Down-conversion of an uplink. The Base Band Unit (BBU) performs service data interaction with the RRU through a Common Public Radio Interface (CPRI) or an Enhanced Common Radio Interface (ECPRI), which is based on AXC (antenna × carrier), and each AXC carrier may have different bandwidth and sampling rate. In a downlink, up-conversion of carriers is realized in a DUC, the sampling rate is increased, data of one path of antenna formed by multi-carrier combination is delivered to a post-stage peak Factor Reduction (CFR) module and a Digital Pre-Distortion (DPD) module for antenna-level processing, and then is transmitted by an analog radio frequency through a Digital-to-analog (DA) converter. In the uplink, after being converted into digital signals by a DA converter, the DDC performs multi-carrier separation and down-conversion of carriers, reduces the sampling rate, and transmits the signals to the BBU through CPRI (or ECPRI).
A general DUC and DDC consist of parallel identical carrier processing channels, a so-called carrier channel resource pool scheme. As shown in fig. 1, the DUC carrier processing channel mainly includes a filter, an interpolation circuit, a mixer and a combiner, where the mixer includes a voltage Controlled Oscillator (NCO), and each carrier processing channel supports all carrier systems required by the device; as shown in fig. 2, the DDC carrier processing channel mainly consists of a mixer, a decimation circuit and a filter, and each carrier processing channel also supports all carrier systems required by the device.
Taking a 2T2R single-5GNR 100M cell and a 2T2R single-LTE 20M single-cell scenario as examples, a structural block diagram of the existing carrier resource pool DUC is shown in fig. 3, in the diagram, a thin line arrow represents that hardware connection exists, a solid line arrow is an actual signal flow in the carrier system scenario, and a module through which a dotted line arrow flows does not operate.
Taking a 2T2R single-5GNR 100M cell and a 2T2R single-LTE 20M single-cell scenario as examples, a structural block diagram of the conventional carrier resource pool DDC is shown in fig. 4, in which a thin-line arrow indicates existence of hardware connection, a solid-line arrow indicates actual signal flow in the carrier system scenario of this example, and a module through which a dotted-line arrow flows does not operate.
The mixer completes up-conversion or down-conversion of the carrier, HF 0-HF 2 are interpolation filters or decimation filters, and filtering images after interpolation and decimation are completed. The Filter (FIR) is a baseband prototype filter, completes the shaping filtering of the baseband frequency spectrum, and increases the suppression of the baseband signal noise.
The defects of the existing scheme are as follows:
1) Because each parallel carrier processing channel in the carrier resource pool is the same, each carrier processing channel supports all carrier scenes, and as the supported carrier system scenes increase, the filter branches of each carrier processing channel increase, and the resource consumption gradually increases. Each carrier processing channel only satisfies one carrier system, that is, only one path branch is selected, which causes resource waste.
2) And the module which has no selected branch in each carrier channel, namely the dotted line flows through does not work, and the power consumption is additionally increased.
3) Because each parallel carrier processing channel is the same, the order of the prototype filter needs to satisfy the carrier of the maximum sampling rate required to support the scene, and when the supported scene has a low-rate carrier system and a high-rate carrier system at the same time, the order of the filter is wasted.
If each carrier processing channel supports a certain carrier system in a customized manner, the device cannot support a scene with multiple carrier systems, and the device is difficult to expand and upgrade the scene with the carrier systems.
Disclosure of Invention
In view of this, the present invention provides a method, an apparatus, and a system for resource scheduling to solve at least the above technical problems in the prior art.
One aspect of the present invention provides a resource scheduling method, including: a multi-stage filter resource pool is arranged between the CPRI/ECPRI and the antenna channel, each stage of filter resource pool comprises different types of filters, and the adjacent stages of filter resource pools are connected by adopting full mapping;
obtaining a carrier channel construction instruction, wherein the instruction comprises carrier channel construction condition parameters;
according to the carrier channel construction condition parameters, selecting matched filters from the filter resource pools of all levels;
and combining the selected filter and the connection channel thereof based on the full mapping connection between the filter resource pools of each stage to complete the construction of the corresponding carrier channel.
In one possible embodiment, the multistage filter resource pool comprises, in scheduling resources for the DUC: a prototype filter resource pool, an interpolation filter resource pool, a mixer resource pool and a combiner resource pool;
the interpolation filter resource pool is a multi-stage interpolation filter resource pool, each stage of interpolation filter resource pool is cascaded from front to back, and the adjacent previous stage of interpolation filter resource pool and the next stage of interpolation filter resource pool are connected by full mapping;
the prototype filter resource pool and the CPRI/ECPRI are connected by adopting full mapping of an antenna and a carrier wave AXC; the first-stage interpolation filter resource pool is in full-mapping connection with the prototype filter resource pool, the last-stage interpolation filter resource pool is directly connected with the mixer resource pool, and the mixer resource pool is in full-mapping connection with the combiner resource pool.
In an embodiment, the multistage filter resource pool comprises, when scheduling resources for DDC: a mixer resource pool and a decimation filter resource pool;
the resource pool of the decimation filter is a resource pool of a multistage decimation filter, the resource pools of each stage of decimation filter are cascaded from front to back, and the adjacent resource pools of the decimation filter at the previous stage and the resource pools of the decimation filter at the next stage are connected by full mapping;
the frequency mixer resource pool is in full-mapping connection with an uplink antenna channel, the first-stage decimation filter resource pool is in full-mapping connection with the frequency mixer resource pool, and the decimation filter resource pools at all stages are in full-mapping connection with the CPRI/ECPRI respectively.
In an embodiment, selecting a matched filter from each stage of the filter resource pool according to the construction condition parameter includes:
selecting the prototype filter with matched order from the prototype filter resource pool according to the order requirement of the prototype filter resource pool in the carrier channel construction condition parameters; and selecting a rate-matched interpolation or decimation filter from a corresponding interpolation or decimation filter resource pool according to the rate requirement of the carrier channel construction condition parameters on each level of interpolation or decimation filter.
In an embodiment, the method further comprises constructing the pool of multilevel filter resources by:
obtaining all filters used for constructing the multistage filter resource pool;
classifying the filter according to the type and attribute parameters of the filter, and classifying the filters with the same type and attribute into the same-stage filter resource pool;
and establishing full mapping connection for all filter resource pools obtained in a grading manner according to a preset cascade relation so as to obtain the multistage filter resource pools.
In one aspect, the present invention provides an apparatus for scheduling resources, including: a multi-stage filter resource pool is arranged between the CPRI/ECPRI and the antenna channel, each stage of filter resource pool comprises different types of filters, and the adjacent stages of filter resource pools are connected by adopting full mapping;
an obtaining unit, configured to obtain a carrier channel configuration instruction, where the instruction includes a carrier channel configuration condition parameter;
a selecting unit, configured to select a matched filter from the filter resource pools of each stage according to the carrier channel construction condition parameter;
and the combination unit is used for combining the selected filter and the connection channel thereof based on the full mapping connection between the filter resource pools of each stage so as to complete the construction of the corresponding carrier channel.
In another aspect, the present invention provides a resource scheduling system, including: a multistage filter resource pool, a full mapping module and a resource scheduling module,
the multistage filter resource pool is arranged between the CPRI/ECPRI and the antenna channel, and each stage of filter resource pool respectively comprises different types of filters;
the full mapping module is used for providing full mapping connection between the filter resource pools of the adjacent stages;
the resource scheduling module is used for obtaining a carrier channel building instruction, wherein the instruction comprises a carrier channel building condition parameter; selecting matched filters from the filter resource pools of all levels according to the construction condition parameters; and combining the selected filter and the connection channel thereof based on the full mapping connection between the resource pools of the filters at each level to complete the construction of the corresponding carrier channel.
In one possible embodiment, in a resource scheduling system for a DUC, the multistage filter resource pool comprises: a prototype filter resource pool, an interpolation filter resource pool, a mixer resource pool and a combiner resource pool;
the interpolation filter resource pool is a multi-stage interpolation filter resource pool, each stage of interpolation filter resource pool is cascaded from front to back, and the adjacent previous stage of interpolation filter resource pool and the next stage of interpolation filter resource pool are connected in a full mapping mode;
the full mapping module comprises: an AXC full-map submodule to provide full-map connectivity between the prototype filter resource pool and the CPRI/ECPRI;
the full mapping module further comprises: at least one interpolation filter resource pool full mapping submodule for providing full mapping connection between adjacent interpolation filter resource pools, wherein the first stage interpolation filter resource pool is in full mapping connection with the prototype filter resource pool, and the last stage interpolation filter resource pool is directly connected with the mixer resource pool;
the full mapping module further comprises: and the multi-carrier combination full-mapping sub-module is used for providing full-mapping connection between the mixer resource pool and the combiner resource pool.
In an implementation, in a resource scheduling system for digital down-conversion DDC, the multi-stage filter resource pool comprises: a mixer resource pool and a decimation filter resource pool;
the resource pool of the decimation filter is a resource pool of a multi-stage decimation filter, the resource pools of the decimation filter at each stage are cascaded from front to back, and the adjacent resource pool of the decimation filter at the previous stage is connected with the resource pool of the decimation filter at the next stage in a full mapping mode;
the full mapping module comprises: an antenna level full mapping submodule for providing full mapping connection between an uplink antenna channel and the mixer resource pool;
the full mapping module further comprises: at least one decimation filter resource pool full mapping submodule for providing full mapping connections between said adjacent decimation filter resource pools;
the full mapping module further comprises: and the AXC full mapping sub-module is used for providing AXC full mapping connection between the resource pool of each stage of decimation filter and the CPRI/ECPRI.
In one embodiment, the resource scheduling module is further configured to,
selecting the prototype filter with matched order from the prototype filter resource pool according to the order requirement of the prototype filter resource pool in the carrier channel construction condition parameters; and selecting a rate-matched interpolation or decimation filter from a corresponding interpolation or decimation filter resource pool according to the rate requirement of the carrier channel construction condition parameters on each level of interpolation or decimation filter.
The invention has the following technical effects:
1. due to the adoption of the scheme of a multi-stage filter resource pool, each carrier channel can accurately combine hardware resources such as a filter and the like required by the carrier channel according to the requirements of a carrier scene;
2. the order of the prototype filter can be selected according to the requirement of a carrier scene, and the prototype filter with less order can be used for the baseband carrier with low speed, so that the order of the filter is reduced, and the resource consumption is reduced;
3. because each path of carrier channel accurately selects filter resources, the power consumption is reduced;
4. because each path of carrier channel accurately selects filter resources, the power consumption is reduced; and moreover, more flexible carrier system scene combination is supported, the extended support of the product to the carrier system scene is simplified, and when the equipment needs to increase the carrier system scene support, only the filter in the corresponding filter resource pool needs to be increased or more filter resource pools need to be increased.
Drawings
Figure 1 is a schematic diagram of DUC carrier processing paths in the related art;
fig. 2 is a diagram illustrating DDC carrier processing paths in the related art;
fig. 3 is a block diagram of a structure of a conventional carrier resource pool DUC of a 2T2R single 5GNR100M cell and a 2T2R single LTE20M single cell in the related art;
fig. 4 is a block diagram of a conventional DDC structure of a 2T2R single 5GNR100M cell and a 2T2R single LTE20M single cell in the related art;
fig. 5 is a flowchart illustrating a resource scheduling method according to an embodiment of the present invention;
FIG. 6 is a block diagram of a DUC structure of a resource pool of a multistage filter according to an embodiment of the present invention;
fig. 7 is a structural block diagram of a multi-stage filter resource pool DUC of a 2T2R single 5GNR100M cell and a 2T2R single LTE20M single cell according to an embodiment of the present invention;
fig. 8 is a block diagram of a DDC structure of a resource pool of a multi-stage filter according to an embodiment of the present invention;
fig. 9 is a structural block diagram of a multi-stage filter resource pool DDC of a 2T2R single 5GNR100M cell and a 2T2R single LTE20M single cell according to an embodiment of the present invention;
FIG. 10 is a schematic diagram of an n × m full map according to an embodiment of the present invention;
fig. 11 is a schematic structural diagram of a resource scheduling apparatus according to an embodiment of the present invention;
fig. 12 is a schematic structural diagram of a resource scheduling system according to an embodiment of the present invention.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
An embodiment of the present invention provides a resource scheduling method, as shown in fig. 5, the method includes: a multi-stage filter resource pool is arranged between the CPRI/ECPRI and the antenna channel, each stage of filter resource pool comprises different types of filters, and the adjacent stages of filter resource pools are connected by adopting full mapping;
step 501, a carrier channel establishing instruction is obtained, wherein the instruction comprises carrier channel establishing condition parameters.
The method of the embodiment of the invention aims to break through the resource limitation among the carrier channels, so that all hardware resources can be shared among the carrier channels. The DUC and DDC structures are divided according to multi-stage filter resource pools, and the resource pools adopt a full mapping mode, so that the hardware resources in each filter resource pool can be flexibly combined and scheduled according to the scene requirements of a carrier system when each path of carrier channel is established.
In this way, due to the adoption of the scheme of the multi-stage filter resource pool, each carrier channel can accurately combine hardware resources such as a filter and the like required by the carrier channel according to the requirements of a carrier scene; the order of the prototype filter can be selected according to the requirement of a carrier scene, and the prototype filter with less order can be used for the baseband carrier with low speed, so that the order of the filter is reduced, and the resource consumption is reduced; because each path of carrier channel accurately selects filter resources, the power consumption is reduced; and moreover, more flexible carrier system scene combination is supported, the extended support of the product to the carrier system scene is simplified, and when the equipment needs to increase the carrier system scene support, only the filter in the corresponding filter resource pool needs to be increased or more filter resource pools need to be increased.
To illustrate the detailed scheme of the present invention more clearly, the following description is continued with the structural scheme of the multi-stage filter resource pool in DUC and DDC.
Example two
As shown in fig. 6, fig. 6 is a block diagram of a DUC structure of a resource pool of a multistage filter according to an embodiment of the present invention. The multi-stage filter resource pool DUC comprises: a prototype filter resource pool, an interpolation filter resource pool, a mixer resource pool and a combiner resource pool; the interpolation filter resource pool is a multi-stage interpolation filter resource pool, each stage of interpolation filter resource pool is cascaded from front to back, and the adjacent previous stage interpolation filter resource pool and the next stage interpolation filter resource pool are connected by full mapping; the prototype filter resource pool and the CPRI/ECPRI are connected by adopting full mapping of an antenna and a carrier wave AXC; the first-stage interpolation filter resource pool and the prototype filter resource pool are connected in a full-mapping mode, the last-stage interpolation filter resource pool is directly connected with the frequency mixer resource pool, and the frequency mixer resource pool and the combiner resource pool are connected in a full-mapping mode.
Filter combinations can be freely selected from various levels of filter resource pools for the purpose of building individual DUC carrier channels. The AXC full mapping completes the mapping from CPRI/ECPRI serial carrier data to parallel multi-carrier channels, the full mapping module of each stage of interpolation filter completes the selective mapping of the carrier path matched with the rate of the filter at the current stage, and the multi-carrier combination full mapping completes the selective mapping of the antenna corresponding to the combination of each path of carrier combination.
In the following, with reference to the structural block diagram of the multi-stage filter resource pool DUC shown in fig. 7, a scene of a 2T2R single 5GNR100M cell and a 2T2R single LTE20M single cell is taken as an example to further illustrate. In fig. 7, the thin line arrows represent the presence of hardware connections, and the solid line arrows represent the actual selection connections for the scenario of the present example.
In this scenario example, the AXC full mapping module is configured to provide mapping of CPRI/ECPRI serial carrier data to parallel multi-carrier channels, where this example includes two 5GNR100M carriers and two LTE20M carriers, and the prototype filter resource pool includes two prototype filters supporting the 5GNR100M and LTE20M carriers. The order of a prototype filter supported by an LTE20M carrier (rate 30.72M) is N, the order of a prototype filter supported by a 5GNR100M carrier (rate 122.88M) is M, and M > N, and compared with the conventional carrier resource pool scheme, the carrier channel resources are the same, and the order is determined by the prototype filter according to the maximum rate, the order is reduced, and the resources are saved.
The first-stage interpolation filter resource pool is connected with the output of a preceding-stage prototype filter through the full mapping of a first-stage interpolation filter and only connected with the output of a prototype filter with matched rate, and the first-stage interpolation filter is connected with an FIR prototype filter with 30.72M rate in the example;
the second-stage interpolation filter resource pool is connected with the output of the previous-stage interpolation filter through the full mapping of the second-stage interpolation filter and only connected with the output of the rate-matched interpolation filter, wherein the second-stage interpolation filter is connected with the interpolation filter with the rate of 61.44M in the example; the inlet rate of the first-stage interpolation filter is 30.72M, the outlet rate after twice interpolation processing is 61.44M, and the inlet rate of the second-stage interpolation filter is 61.44M, so that the second-stage interpolation filter is connected with the first-stage interpolation filter with the outlet rate of 61.44M;
the nth stage interpolation filter resource pool is connected with the output of the previous stage interpolation filter through the nth stage interpolation filter full mapping and only connected with the output of the rate matching prototype filter, in this example, the third stage interpolation filter is connected with the interpolation filter with the rate of 122.88M and the prototype filter with the previous stage 122.88M. The entry rate of the second stage interpolation filter is 61.44M, the exit rate after twice interpolation processing becomes 122.88M, and the entry rate of the third stage interpolation filter is 122.88M, so the third stage interpolation filter is connected with the second stage interpolation filter with the exit rate of 122.88M.
In addition, the last stage of interpolation filter is directly connected with the mixer, and the resource pool of the mixer and the resource pool of the combiner are in full mapping.
The so-called full mapping can be seen in the schematic diagram of fig. 10, where fig. 10 is an n × m full mapping, i.e., n input paths and m output paths, i.e., m n-out-of-one gating arrays.
EXAMPLE III
As shown in fig. 8, fig. 8 is a block diagram of a DDC structure of a resource pool of a multi-stage filter according to an embodiment of the present invention. The multi-stage filter resource pool DDC comprises: a mixer resource pool and a decimation filter resource pool; the decimation filter resource pool is a multi-stage decimation filter resource pool, each stage of decimation filter resource pool is cascaded from front to back, and the adjacent previous stage decimation filter resource pool and the next stage decimation filter resource pool are connected by full mapping; the resource pool of the mixer is in full-mapping connection with the uplink antenna channel, the resource pool of the first-stage decimation filter is in full-mapping connection with the resource pool of the mixer, and the resource pools of the decimation filters at all stages are in full-mapping connection with the CPRI/ECPRI respectively.
When each DDC carrier channel is established, the filter combination can be freely selected from each stage of filter resource pool. The antenna level full mapping maps each antenna to a DDC carrier channel at will, the full mapping module of each level of decimation filter completes the selective mapping of the carrier channel matched with the rate of the filter at the level, and the AXC full mapping completes the mapping from the parallel multi-carrier channel to the CPRI/ECPRI serial carrier data.
In combination with the structure block diagram of the resource pool DUC of the multi-stage filter shown in fig. 9, a scene of a 2T2R single-5GNR 100M cell and a 2T2R single-LTE 20M single cell is taken as an example to further illustrate the following. In fig. 9, the thin line arrows represent the presence of hardware connections, and the solid line arrows represent actual selection connections for the scenario.
The resource pool of the first-stage decimation filter is in full mapping connection with the resource pool of the uplink antenna, the resource pool of the first-stage decimation filter is in full mapping with the resource pool of the mixer, the antenna entrance rate is 245.76M, and the resource pool of the first-stage decimation filter with the rate of 245.76M is selected from the resource pool of the first-stage decimation filter and is in full mapping with the resource pool of the mixer; the resource pool of the second-stage decimation filter is connected with the filter with the exit rate of 122.88M (122.88M refers to the exit rate of the first-stage decimation filter, the entry rate of the first-stage decimation filter is 245.76M, the exit rate after twice decimation processing becomes 122.88M), that is, the resource pool of the first-stage decimation filter is in full-mapping connection, and the resource pool of the third-stage decimation filter is connected with the filter with the exit rate of 61.44M (61.44M refers to the exit rate of the second-stage decimation filter, the entry rate of the second-stage decimation filter is 122.88M, the exit rate after twice decimation processing becomes 61.44M), that is, the resource pool of the second-stage decimation filter is in full-mapping connection. The CPRI/ECPRI frame interface and the preceding decimation filters in each stage are respectively in full-mapping connection, so that a carrier path from the preceding decimation filters in each stage to the CPRI/ECPRI frame interface can be established.
In this embodiment, a three-level decimation filter resource pool is taken as an example, and certainly, in practical application, there may be more levels of decimation filter resource pools. The example of so-called full mapping can be seen in the schematic diagram of fig. 10, where fig. 10 is an n × m full mapping, i.e. n input channels and m output channels, i.e. consisting of m n-out-of-one gating arrays.
As can be understood by combining the second embodiment and the third embodiment, the embodiment of the present invention makes the filter resource pools of each stage shared among the carrier channels by breaking through the limitation between the carrier resource pools, thereby saving resources and reducing the power consumption of the device compared with the conventional parallel carrier resource pool scheme; full mapping is adopted among all levels of carrier resource pools, and carrier channels can be formed by random combination, so that the support on various carrier system scenes is simplified; because the full mapping relation is determined among the filter resource pools according to the rate matching, the expansion and the upgrade of the equipment to the carrier scene are simplified; because full mapping is adopted between the DUC inlet and the DDC outlet and the CPRI/ECPRI frame interface, the requirement of AXC arrangement of various CPRI/ECPRI frames is met, and framing and unframing of the CPRI/ECPRI frames are simplified.
It should be further noted that, when a matched filter is selected from each stage of filter resource pools according to the construction condition parameters, a prototype filter with matched order may be selected from the prototype filter resource pools according to the order requirement on the prototype filter resource pools in the carrier channel construction condition parameters; and selecting a rate-matched interpolation or decimation filter from a corresponding interpolation or decimation filter resource pool according to the rate requirement of the carrier channel construction condition parameters on each level of interpolation or decimation filter. In conjunction with the scene diagram shown in fig. 7, when selecting the filters, according to actual building requirements, a prototype filter with an M-th order of 122.88M rate, a prototype filter with an N-th order of 30.72M rate, a first-stage interpolation filter with a 61.44M rate, a second-stage interpolation filter with a 122.88M rate, and a third-stage interpolation filter with a 245.76M rate are selected for building the self-carrier channel. With reference to the scenario diagram shown in fig. 8, when selecting the filter, according to actual configuration requirements, a first-stage decimation filter with a rate of 245.76M, a second-stage decimation filter with a rate of 122.88M, and a third-stage decimation filter with a rate of 61.44M are selected for configuring the carrier channel.
In addition, the embodiment of the invention can construct the resource pool of the multistage filter by the following modes:
obtaining all filters used for constructing a resource pool of the multistage filter;
classifying the filters according to the type and attribute parameters of the filters (such as the order and the speed of a prototype filter, the speed of an interpolation/decimation filter and the like), and classifying the filters with the same type and attribute into the same stage of filter resource pool; as shown in fig. 7, the interpolation filters at the rate of 61.44M are sorted into the same order of filter resource pool, the interpolation filters at the rate of 122.88M are sorted into the same order of filter resource pool, and the interpolation filters at the rate of 245.76M are sorted into the same order of filter resource pool.
And establishing full mapping connection for all the filter resource pools obtained in a grading manner according to a preset cascade relation so as to obtain the multistage filter resource pools. And the full mapping module is used for completing full mapping connection between the filter resource pools.
Example four
An embodiment of the present invention further provides a resource scheduling apparatus, as shown in fig. 11, the apparatus includes: a multi-stage filter resource pool is arranged between the CPRI/ECPRI and the antenna channel, each stage of filter resource pool comprises different types of filters, and the adjacent stages of filter resource pools are connected by adopting full mapping;
an obtaining unit 110, configured to obtain a carrier channel configuration instruction, where the instruction includes a carrier channel configuration condition parameter;
a selecting unit 120, configured to select a matched filter from each stage of filter resource pool according to the carrier channel construction condition parameter;
and a combining unit 130, configured to combine the selected filter and the connection channel thereof based on the full-mapped connection between the filter resource pools at each stage, so as to complete the establishment of the corresponding carrier channel.
Other related functions and functions of the resource scheduling apparatus are referred to the foregoing embodiments of the present invention, and are not described herein again.
EXAMPLE five
An embodiment of the present invention further provides a resource scheduling system, as shown in fig. 12, including: a multi-level filter resource pool 210, a full mapping module 220 and a resource scheduling module 230,
the multi-stage filter resource pool 210 is arranged between the CPRI and the antenna channel, and each stage of filter resource pool includes different types of filters;
a full mapping module 220 for providing full mapping connections between filter resource pools of adjacent stages;
a resource scheduling module 230, configured to obtain a carrier channel configuration instruction, where the instruction includes a carrier channel configuration condition parameter; selecting matched filters from the filter resource pools of all levels according to the construction condition parameters; and combining the selected filter and the connection channel thereof based on the full mapping connection between the resource pools of the filters at all levels to complete the construction of the corresponding carrier channel.
In a resource scheduling system for DUCs, the multistage filter resource pool 210 includes: a prototype filter resource pool, an interpolation filter resource pool, a mixer resource pool and a combiner resource pool;
the interpolation filter resource pool is a multi-stage interpolation filter resource pool, each stage of interpolation filter resource pool is cascaded from front to back, and the adjacent previous stage of interpolation filter resource pool and the next stage of interpolation filter resource pool are connected in a full mapping mode;
the full mapping module 220 includes: the AXC full mapping submodule is used for providing full mapping connection between the prototype filter resource pool and the CPRI/ECPRI;
the full mapping module 220 further includes: at least one interpolation filter resource pool full mapping submodule for providing full mapping connection between adjacent interpolation filter resource pools, wherein the first stage interpolation filter resource pool and the prototype filter resource pool are in full mapping connection, and the last stage interpolation filter resource pool is directly connected with the mixer resource pool;
the full mapping module 220 further includes: and the multi-carrier combination full-mapping sub-module is used for providing full-mapping connection between the mixer resource pool and the combiner resource pool.
In the resource scheduling system for DDC, the multistage filter resource pool 210 includes: a mixer resource pool and a decimation filter resource pool;
the decimation filter resource pool 210 is a multi-stage decimation filter resource pool, each stage decimation filter resource pool is cascaded from front to back, and the adjacent previous stage decimation filter resource pool and the next stage decimation filter resource pool are connected by a full mapping mode;
the full mapping module 220 includes: the antenna level full mapping submodule is used for providing full mapping connection between an uplink antenna channel and a frequency mixer resource pool;
the full mapping module 220 further includes: at least one decimation filter resource pool full mapping submodule for providing full mapping connections between adjacent decimation filter resource pools;
the full mapping module 220 further includes: and the AXC full mapping sub-module is used for providing AXC full mapping connection between each level of decimation filter resource pool and CPRI/ECPRI.
The resource scheduling module 230 is further configured to select a prototype filter with matched order from the prototype filter resource pool according to the order requirement on the prototype filter resource pool in the carrier channel construction condition parameters; and selecting a rate-matched interpolation or decimation filter from a corresponding interpolation or decimation filter resource pool according to the rate requirement of the carrier channel construction condition parameters on each level of interpolation or decimation filter.
In summary, the embodiment of the present invention adopts the scheme of the resource pool of the multi-stage filter, and each carrier channel can accurately combine hardware resources such as the filter and the like required by the carrier channel according to the requirement of the carrier scene; the order of the prototype filter can be selected according to the requirement of a carrier scene, and the prototype filter with less order can be used for the baseband carrier with low speed, so that the order of the filter is reduced, and the resource consumption is reduced; because each path of carrier channel accurately selects filter resources, the power consumption is reduced; and moreover, more flexible carrier system scene combination is supported, the extended support of the product to the carrier system scene is simplified, and when the equipment needs to increase the carrier system scene support, only the filter in the corresponding filter resource pool needs to be increased or more filter resource pools need to be increased.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (10)
1. A method of resource scheduling, the method comprising: a multi-stage filter resource pool is arranged between a common public radio interface CPRI and an antenna channel, filters in the filter resource pool at the same stage are the same, filters in different filter resource pools are different, and filter resource pools at adjacent stages are connected by full mapping;
obtaining a carrier channel building instruction, wherein the instruction comprises carrier channel building condition parameters;
according to the carrier channel construction condition parameters, selecting matched filters from the filter resource pools of all levels;
and combining the selected filter and the connection channel thereof based on the full mapping connection between the filter resource pools of each stage to complete the construction of the corresponding carrier channel.
2. The method of claim 1, wherein the pool of multistage filter resources comprises, in resource scheduling for a digital up-conversion DUC: a prototype filter resource pool, an interpolation filter resource pool, a mixer resource pool and a combiner resource pool;
the interpolation filter resource pool is a multi-stage interpolation filter resource pool, each stage of interpolation filter resource pool is cascaded from front to back, and the adjacent previous stage of interpolation filter resource pool and the next stage of interpolation filter resource pool are connected by full mapping;
the prototype filter resource pool and the CPRI are connected by adopting full mapping of an antenna and a carrier wave AXC; the first-stage interpolation filter resource pool is in full-mapping connection with the prototype filter resource pool, the last-stage interpolation filter resource pool is directly connected with the mixer resource pool, and the mixer resource pool is in full-mapping connection with the combiner resource pool.
3. The resource scheduling method of claim 1, wherein, in resource scheduling for digital down-conversion, DDC, the multi-stage filter resource pool comprises: a mixer resource pool and a decimation filter resource pool;
the resource pool of the decimation filter is a resource pool of a multistage decimation filter, the resource pools of each stage of decimation filter are cascaded from front to back, and the adjacent resource pools of the decimation filter at the previous stage and the resource pools of the decimation filter at the next stage are connected by full mapping;
the frequency mixer resource pool is in full-mapping connection with an uplink antenna channel, the first-stage decimation filter resource pool is in full-mapping connection with the frequency mixer resource pool, and the decimation filter resource pools at all stages are in full-mapping connection with the CPRI respectively.
4. The resource scheduling method according to claim 2 or 3, wherein selecting a matched filter from each stage of filter resource pools according to the construction condition parameter comprises:
selecting the prototype filter with matched order from the prototype filter resource pool according to the order requirement on the prototype filter resource pool in the carrier channel construction condition parameters; and selecting a rate-matched interpolation or decimation filter from a corresponding interpolation or decimation filter resource pool according to the rate requirement of the carrier channel construction condition parameters on each level of interpolation or decimation filter.
5. A method of resource scheduling according to claim 1, 2 or 3, wherein the method further comprises constructing the multistage filter resource pool by:
obtaining all filters used for constructing the multistage filter resource pool;
classifying the filter according to the type and attribute parameters of the filter, and classifying the filters with the same type and attribute into the same-stage filter resource pool;
and establishing full mapping connection for all filter resource pools obtained in a grading manner according to a preset cascade relation so as to obtain the multistage filter resource pools.
6. An apparatus for scheduling resources, the apparatus comprising: a multi-stage filter resource pool is arranged between the common public radio interface CPRI and the antenna channel, the filters in the filter resource pool at the same stage are the same, the filters in different filter resource pools are different, and the filter resource pools at adjacent stages are connected by full mapping;
an obtaining unit, configured to obtain a carrier channel configuration instruction, where the instruction includes a carrier channel configuration condition parameter;
a selecting unit, configured to select a matched filter from the filter resource pools of each stage according to the carrier channel construction condition parameter;
and the combination unit is used for combining the selected filter and the connection channel thereof based on the full mapping connection between the filter resource pools of each stage so as to complete the construction of the corresponding carrier channel.
7. A resource scheduling system, comprising: a multistage filter resource pool, a full mapping module and a resource scheduling module,
the multistage filter resource pool is arranged between the common public radio interface CPRI and the antenna channel, the filters in the filter resource pool at the same stage are the same, and the filters in different filter resource pools are different;
the full mapping module is used for providing full mapping connection between the filter resource pools of adjacent stages;
the resource scheduling module is used for obtaining a carrier channel building instruction, wherein the instruction comprises a carrier channel building condition parameter; selecting matched filters from the filter resource pools of all levels according to the construction condition parameters; and combining the selected filter and the connection channel thereof based on the full mapping connection between the filter resource pools of each stage to complete the construction of the corresponding carrier channel.
8. The resource scheduling system of claim 7, wherein, in a resource scheduling system for digital up-conversion DUCs, the multistage filter resource pool comprises: a prototype filter resource pool, an interpolation filter resource pool, a mixer resource pool and a combiner resource pool;
the interpolation filter resource pool is a multi-stage interpolation filter resource pool, each stage of interpolation filter resource pool is cascaded from front to back, and the adjacent previous stage of interpolation filter resource pool and the next stage of interpolation filter resource pool are connected in a full mapping mode;
the full mapping module comprises: an AXC full-map submodule to provide full-map connections between the prototype filter resource pool and the CPRI;
the full mapping module further comprises: at least one interpolation filter resource pool full mapping submodule for providing full mapping connection between adjacent interpolation filter resource pools, wherein the first stage interpolation filter resource pool is in full mapping connection with the prototype filter resource pool, and the last stage interpolation filter resource pool is directly connected with the mixer resource pool;
the full mapping module further comprises: and the multi-carrier combination full-mapping sub-module is used for providing full-mapping connection between the mixer resource pool and the combiner resource pool.
9. The resource scheduling system of claim 7, wherein, in a resource scheduling system for digital down-conversion, DDC, the multi-stage filter resource pool comprises: a mixer resource pool and a decimation filter resource pool;
the resource pool of the decimation filter is a resource pool of a multi-stage decimation filter, the resource pools of the decimation filter of each stage are cascaded from front to back, and the adjacent resource pool of the decimation filter of the previous stage is connected with the resource pool of the decimation filter of the next stage in a full mapping mode;
the full mapping module comprises: an antenna level full mapping submodule for providing full mapping connection between an uplink antenna channel and the mixer resource pool; the full mapping module further comprises: at least one decimation filter resource pool full mapping submodule for providing full mapping connections between said adjacent decimation filter resource pools;
the full mapping module further comprises: and the AXC full mapping submodule is used for providing AXC full mapping connection between the resource pool of each stage of the decimation filter and the CPRI.
10. The resource scheduling system of claim 8 or 9, wherein the resource scheduling module is further configured to,
selecting the prototype filter with matched order from the prototype filter resource pool according to the order requirement on the prototype filter resource pool in the carrier channel construction condition parameters; and selecting a rate-matched interpolation or decimation filter from a corresponding interpolation or decimation filter resource pool according to the rate requirement of the carrier channel construction condition parameters on each level of interpolation or decimation filter.
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| CN101072019B (en) * | 2007-04-19 | 2010-05-19 | 华为技术有限公司 | Wave filter and its filtering method |
| CN101478785B (en) * | 2009-01-21 | 2010-08-04 | 华为技术有限公司 | Resource pool management system and signal processing method |
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