CN111491376B - Air interface resource scheduling method and equipment - Google Patents

Air interface resource scheduling method and equipment Download PDF

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Publication number
CN111491376B
CN111491376B CN201910081105.7A CN201910081105A CN111491376B CN 111491376 B CN111491376 B CN 111491376B CN 201910081105 A CN201910081105 A CN 201910081105A CN 111491376 B CN111491376 B CN 111491376B
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Prior art keywords
air interface
interface resource
configuration information
resource configuration
service data
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CN111491376A (en
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管鲍
胡军
鲁志兵
张庆利
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Hytera Communications Corp Ltd
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Hytera Communications Corp Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/56—Allocation or scheduling criteria for wireless resources based on priority criteria
    • H04W72/566—Allocation or scheduling criteria for wireless resources based on priority criteria of the information or information source or recipient
    • H04W72/569—Allocation or scheduling criteria for wireless resources based on priority criteria of the information or information source or recipient of the traffic information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/04—Interfaces between hierarchically different network devices
    • H04W92/10—Interfaces between hierarchically different network devices between terminal device and access point, i.e. wireless air interface
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Abstract

The invention provides a method and equipment for scheduling air interface resources, which are used for scheduling and distributing the total amount of available air interface resources according to service data information between a base station and a terminal, generating air interface resource configuration information comprising narrow-band air interface resource configuration information and/or broadband air interface resource configuration information, and then carrying out data transmission according to the air interface resource configuration information. Therefore, the total amount of available air interface resources is flexibly scheduled and allocated according to the actual service data information between the base station and the terminal, so that the air interface resources are dynamically allocated as required when the base station and the terminal perform bidirectional data communication, and the air interface resource utilization rate is further improved.

Description

Air interface resource scheduling method and equipment
Technical Field
The present invention relates to the field of trunking communication technologies, and in particular, to a method and apparatus for scheduling air interface resources.
Background
The trunking communication technology is one of the most representative technologies in the wireless communication technology, and has been widely applied to commanding and dispatching processes in a plurality of industries such as public security, government affairs, traffic, ports, medical treatment and the like. With the increasing strong demands of various industries on broadband mobile communication, the conventional narrowband trunked communication system based on voice and low-speed data transmission cannot meet the increasing high-speed data service demands, so that the narrowband trunked communication system is used in combination with the broadband trunked communication system to meet various demands of industry users.
The air interface resource refers to a frequency spectrum resource which is occupied by the mutual transmission of data between the user terminal and the base station, and two independent base stations of the narrowband trunking communication system and the broadband trunking communication system are arranged, and through the air interface resource, the bidirectional data communication of multiple services between the base station and the user terminal can be realized. At present, the sum of the resource quantity of the air interface resources commonly used by the narrowband trunking communication system and the broadband trunking communication system is fixed, and the resource quantity of the air interface resources which can be used by the narrowband trunking communication system and the broadband trunking communication system are also statically allocated and independent. However, the traffic carried by each of the narrowband trunking communication system and the wideband trunking communication system is changed in real time according to the size of the data actually transmitted by the bidirectional data communication, i.e. the number of resources of the air interface resources actually required by the narrowband trunking communication system and the wideband trunking communication system is dynamically changed, so that it is difficult to obtain a higher air interface resource utilization rate when the wide and narrowband trunking communication systems adopt the existing statically allocated air interface resources to perform data communication.
Disclosure of Invention
In view of the above, the present invention provides a method and apparatus for scheduling air interface resources, which improves the utilization rate of the air interface resources.
In order to achieve the above purpose, the present invention provides the following technical solutions:
an air interface resource scheduling method, the method comprising:
determining service data information between a base station and a terminal; the service data information comprises transmission traffic and/or service scheduling conditions;
acquiring current available air interface resources;
scheduling and distributing the total amount of the available air interface resources according to the service data information to generate air interface resource configuration information; the air interface resource configuration information comprises narrow-band air interface resource configuration information and/or broadband air interface resource configuration information;
and carrying out data transmission according to the air interface resource configuration information.
Preferably, the scheduling allocation is performed on the total amount of the available air interface resources according to the service data information, and after generating the air interface resource configuration information, the method further includes:
and sending the air interface resource configuration information to the terminal so that the terminal performs data transmission according to the received air interface resource configuration information.
Preferably, according to the air interface resource configuration information, performing data transmission includes:
according to the narrowband air interface resource configuration information and/or the wideband air interface resource configuration information, the same radio frequency unit and the same feeder system are used for transmitting or receiving data;
Or, according to the narrowband air interface resource configuration information and/or the wideband air interface resource configuration information, the same radio frequency unit is used for transmitting or receiving data.
Preferably, scheduling and allocating the total amount of the available air interface resources according to the service data information to generate air interface resource configuration information, including:
determining the occupation amount of the narrowband air interface resources and the occupation amount of the broadband air interface resources required by the transmission traffic in the service data information;
scheduling and distributing the total amount of the air interface resources according to the occupation amount of the narrow-band air interface resources, the occupation amount of the wide-band air interface resources, the narrow-band channel conditions, the wide-band channel conditions and the service level to generate the air interface resource configuration information;
the service scheduling conditions include: the narrowband channel condition, the wideband channel condition, and the traffic class.
Preferably, sending the air interface resource configuration information to the terminal includes:
performing signal waveform conversion, signal modulation and frequency conversion on the air interface resource allocation information to generate an air interface resource allocation signal; the air interface resource allocation signal comprises a narrowband resource allocation signal and/or a wideband resource allocation signal;
And sending the air interface resource allocation signal to the terminal.
An air interface resource scheduling method is applied to a terminal and comprises the following steps:
receiving air interface resource configuration information sent by a base station; the air interface resource configuration information comprises narrow-band air interface resource configuration information and/or broadband air interface resource configuration information;
and carrying out data transmission according to the air interface resource configuration information.
Preferably, the data transmission according to the air interface resource configuration information includes:
determining data packet transmission resource configuration information corresponding to the air interface resource configuration information;
generating a first narrowband service data packet corresponding to the narrowband air interface resource configuration information and/or a first broadband service data packet corresponding to the broadband air interface resource configuration information;
and transmitting the first narrowband service data packet and/or the first broadband service data packet to the base station according to the data packet transmission resource configuration information so that the base station analyzes the first narrowband service data packet and/or the first broadband service data packet.
Preferably, the data transmission according to the air interface resource configuration information includes:
receiving a second narrowband service data packet corresponding to the narrowband air interface resource allocation information and/or a second wideband service data packet corresponding to the wideband air interface resource allocation information from the base station;
And analyzing the second narrowband service data packet and/or the second broadband service data packet.
A scheduling apparatus comprising: a memory and a processor;
wherein the memory is used for storing programs;
the processor invokes the program and is configured to:
determining service data information between a base station and a terminal; the service data information comprises transmission traffic and/or service scheduling conditions;
acquiring current available air interface resources;
scheduling and distributing the total amount of the available air interface resources according to the service data information to generate air interface resource configuration information; the air interface resource configuration information comprises narrow-band air interface resource configuration information and/or broadband air interface resource configuration information;
and carrying out data transmission according to the air interface resource configuration information.
A terminal comprising a receiving port and a processor;
the receiving port is used for receiving air interface resource allocation information sent by the base station; the air interface resource configuration information comprises narrow-band air interface resource configuration information and/or broadband air interface resource configuration information;
and the processor is used for carrying out data transmission according to the air interface resource allocation information.
As can be seen from the above technical solution, compared with the prior art, the present invention provides a method and apparatus for scheduling air interface resources, which performs scheduling and allocation on the total amount of available air interface resources according to service data information between a base station and a terminal, generates air interface resource configuration information including narrowband air interface resource configuration information and/or wideband air interface resource configuration information, and performs data transmission according to the air interface resource configuration information. Therefore, the total amount of available air interface resources is flexibly scheduled and allocated according to the actual service data information between the base station and the terminal, so that the air interface resources are dynamically allocated as required when the base station and the terminal perform bidirectional data communication, and the air interface resource utilization rate is further improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
Fig. 1 is a method flowchart of a method for scheduling air interface resources according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a scheduling platform according to an embodiment of the present invention;
fig. 3 is a flowchart of another method for scheduling air interface resources according to an embodiment of the present invention;
fig. 4 is a flowchart of a method of another air interface resource scheduling method according to an embodiment of the present invention;
fig. 5 is a method flowchart of an air interface resource scheduling method applied to a terminal according to an embodiment of the present invention;
fig. 6 is a flowchart of a method for another air interface resource scheduling method applied to a terminal according to an embodiment of the present invention;
fig. 7 is a flowchart of a method for scheduling air interface resources applied to a terminal according to an embodiment of the present invention;
Fig. 8 is a frame diagram of a unified time-frequency resource according to an embodiment of the present invention;
fig. 9 is a diagram showing a comparison between an OFDM waveform and an FBMC waveform according to an embodiment of the present invention;
FIG. 10 is a diagram illustrating a comparison of OFDM and FBMC waveform protection bands according to an embodiment of the present invention;
fig. 11 is a schematic structural diagram of an air interface resource scheduling device according to an embodiment of the present invention;
fig. 12 is a schematic structural diagram of an air interface resource scheduling device applied to a terminal according to an embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The embodiment of the invention discloses an air interface resource scheduling method which is applied to a base station or a core network.
Referring to fig. 1, the method specifically includes the following steps:
S11, determining service data information between a base station and a terminal;
wherein the service data information comprises transmission traffic and/or service scheduling conditions.
Specifically, the transmission traffic between the base station and the terminal refers to the data size in the wide and narrow band service data packets transmitted during data communication between the base station and the terminal, and mainly includes uplink transmission traffic and downlink transmission traffic. When the transmission traffic is uplink transmission traffic, the terminal transmits a data packet to the base station, and at the moment, the base station can acquire the transmission traffic through a buffer status report reported by the terminal; when the transmission traffic is downlink transmission traffic, the base station transmits the data packet to the terminal, and at this time, the base station or the core network can acquire the transmission traffic through a background device connected with the base station or the core network, such as a wide-band and narrow-band converged core network system or a cluster scheduling application comprehensive platform system.
Traffic scheduling conditions include narrowband channel conditions, wideband channel conditions, and traffic classes. The narrowband channel may refer to a channel between the base station and the terminal for transmitting a narrowband service data packet, and the narrowband channel condition may refer to a distance between the narrowband channel and the base station, a transmission speed of the narrowband channel, and the like; the wideband channel may refer to a channel between the base station and the terminal for transmitting wideband traffic data packets, and the wideband channel condition may refer to a distance between the wideband channel and the base station, a transmission speed of the wideband channel, and the like.
It should be noted that, the narrowband channel conditions correspond to the wideband channel conditions one by one, for example, when the narrowband channel conditions are the distances between the narrowband channel and the base station, the wideband channel conditions are the distances between the wideband channel and the base station.
The service class of the terminal may be preset based on the type of the service data packet with a larger number of times of transmission of the terminal itself, if the number of times of transmission of the "video service data packet" is larger, the service class of the terminal may be set to be "primary", and if the number of times of transmission of the "voice service data packet" is larger, the service class of the terminal may be set to be "secondary", where "primary" is higher than "secondary".
The service scheduling condition can be obtained in advance, and the obtaining mode can be obtained according to the process that the terminal sends the wide and narrow-band service data packet last time; or can be obtained by carrying out statistical analysis on the process of sending the wide and narrow band service data packets for multiple times by the terminal.
S12, acquiring a current available air interface resource;
the air interface resource refers to a spectrum resource which is occupied by the mutual data transmission between the user terminal and the base station. The available air interface resources in this embodiment may be allocated, including all unused narrowband resources and wideband resources.
S13, scheduling and distributing the total amount of the available air interface resources according to the service data information to generate air interface resource configuration information;
the air interface resource configuration information comprises narrowband air interface resource configuration information and/or wideband air interface resource configuration information.
The narrow-band air interface resource configuration information comprises narrow-band air interface resources to be used, and the wide-band air interface resource configuration information comprises wide-band air interface resources to be used. The narrowband air interface resource or the wideband air interface resource that needs to be used may be zero. I.e. only broadband air interface resources or narrowband air interface resources can be used for data transmission. In addition, the broadband air interface resource and the narrowband air interface resource can be used for data transmission at the same time.
The sum of the allocation amount of the narrowband air-interface resource and the allocation amount of the wideband air-interface resource is generally smaller than or equal to the total amount of the available air-interface resources. The allocation quantity of the narrowband air interface resources corresponds to the occupation quantity of the narrowband air interface resources and is mainly used as the air interface resources to be occupied by the narrowband service data packets in the data communication process; the configuration quantity of the broadband air interface resources corresponds to the occupation quantity of the broadband air interface resources, and is mainly used as the air interface resources to be occupied by the broadband service data packet in the data communication process.
When the sum of the allocation amount of the narrowband air-interface resources and the allocation amount of the broadband air-interface resources is larger than the total amount of the available air-interface resources, the total amount of the available air-interface resources can be repeatedly scheduled and allocated for a plurality of times, and the allocation amount of the narrowband air-interface resources and the allocation amount of the broadband air-interface resources remained after the scheduling and allocation are used as the allocation amount of the narrowband air-interface resources and the allocation amount of the broadband air-interface resources when the scheduling and allocation operation is executed next time until the transmission of all narrowband service data packets and all broadband service data packets in one data communication process is completed, so that sufficient air-interface resources are provided for the bidirectional data communication between the base station and the terminal, and the data integrity of the bidirectional data communication is ensured.
It should be noted that, if the base station of the embodiment of the present invention merges the narrowband trunking communication system and the broadband trunking communication system, when the base station and the terminal are utilized to perform bidirectional data communication, the available air interface resources in the base station can be dynamically allocated according to the narrowband air interface resources and the broadband air interface resources actually required in the bidirectional data communication process, so as to maximize the utilization rate of the air interface resources of the base station. Meanwhile, the narrowband trunking communication system and the broadband trunking communication system are integrated into one base station, so that the structure of the base station is simplified, the functions of the base station are improved, and the construction cost is further reduced.
And S13, carrying out data transmission according to the air interface resource configuration information.
Optionally, on the basis of the present embodiment, step S13 may include:
according to the narrowband air interface resource configuration information and/or the wideband air interface resource configuration information, the same radio frequency unit and the same feeder system are used for transmitting or receiving data;
or, according to the narrowband air interface resource configuration information and/or the wideband air interface resource configuration information, the same radio frequency unit is used for transmitting or receiving data.
Specifically, the radio frequency units of the broadband trunking communication system and the narrowband trunking communication system are combined, and the two systems use the same radio frequency unit;
further, the antenna feeder systems of the broadband trunked communication system and the narrowband trunked communication system are combined, and the same feeder system is used for both systems.
It can be seen that the broadband trunked communication system and the narrowband trunked communication system may use the same radio frequency unit, and more preferably the same feeder system may be used in addition to the same radio frequency unit.
It should be noted that, the radio resource control RRC layer entities of the wideband trunking communication system and the narrowband trunking communication system are combined to form a combined RRC layer entity, and are uniformly responsible for the management of the air interface resources of the two systems;
Media intervention control layer MAC layer entities of the broadband trunking communication system and the narrowband trunking communication system are combined to form a combined MAC layer entity, and the combined MAC layer entity is uniformly responsible for scheduling air interface resources of the two systems.
The broadband trunking communication system and the narrowband trunking communication system respectively use respective physical layers and digital intermediate frequencies, and thus the unified air interface resource scheduling platform comprises a converged RRC layer, a MAC scheduling layer, and a radio frequency, and separate physical layers and digital intermediate frequencies, as shown in fig. 2.
In the unified air interface resource scheduling platform, the combined RRC and MAC functional entities can allocate air interface resources according to respective actual service requirements of two systems under the unified time-frequency resource framework, so that the allocation according to needs is realized, and the utilization rate of limited spectrum resources is improved. The physical layer is divided into a plurality of processing flows, baseband signal waveforms respectively defined by the broadband trunking communication system and the narrowband trunking communication system are respectively generated according to the unified scheduling result, the respective baseband signals are modulated into the allocated time-frequency resource blocks at the digital intermediate frequency, the signals of the broadband trunking communication system and the narrowband trunking communication system are combined at the radio frequency stage, and the antenna feeder system is multiplexed, so that the flexible deployment of the common frequency spectrum is realized.
The new unified air interface resource scheduling device breaks the restriction that the dynamic adjustment can not be carried out according to the service requirement at present, and realizes the on-demand dynamic allocation of the air interface resources of the wide and narrow band cluster system.
In this embodiment, the total amount of available air interface resources is scheduled and allocated according to service data information between the base station and the terminal, so as to generate air interface resource configuration information including narrowband air interface resource configuration information and/or wideband air interface resource configuration information, and then data transmission is performed according to the air interface resource configuration information. Therefore, the total amount of available air interface resources is flexibly scheduled and allocated according to the actual service data information between the base station and the terminal, so that the air interface resources are dynamically allocated as required when the base station and the terminal perform bidirectional data communication, and the air interface resource utilization rate is further improved.
The application scene of the embodiment of the invention is various, and the specific steps are as follows:
the air interface resource scheduling method of the present invention may be adopted when a conventional narrowband trunked communication system (e.g., a floodo trunked radio TETRA, a digital mobile radio standard DMR, a police digital trunked PDT, etc.) based on voice services is deployed simultaneously with a wideband trunked system (e.g., a long term evolution LTE of universal mobile telecommunications technology, etc.) based on data services.
In public network, when the 2G system (such as GSM) mainly used for voice service and the 4G broadband system (such as LTE) mainly used for data service are deployed at the same time, the air interface resource scheduling method of the invention can be adopted.
In the future, when a narrowband system (including a trunking system and a 2G system) mainly based on voice and a broadband local area network (such as WiFi) are deployed simultaneously, the air interface resource scheduling method of the invention can be adopted.
Optionally, on the basis of the embodiment of any one of the air interface resource scheduling methods, after step S12, the method may further include:
and sending the air interface resource configuration information to the terminal so that the terminal performs data transmission according to the received air interface resource configuration information.
Specifically, after the air interface resource configuration information is sent to the terminal, the terminal sends or detects a narrowband service data packet corresponding to the narrowband air interface resource configuration amount and a broadband service data packet corresponding to the broadband air interface resource configuration amount after receiving the air interface resource configuration information;
when the transmission traffic is uplink transmission traffic, the terminal transmits the data packet to the base station, and at this time, the air interface resource allocation information is mainly used for informing the terminal that the base station has allocated the required wide and narrow air interface resources for the terminal at the current moment, and the terminal can send the narrow-band service data packet and the broadband service data packet with corresponding allocation amounts to the base station, so as to realize the data communication of the wide and narrow-band service data packet to the base station by the terminal on the basis that the base station dynamically adjusts the allocation amounts of the wide and narrow air interface resources according to the uplink transmission traffic.
When the transmission traffic is downlink transmission traffic, the base station transmits data packets to the terminal, at this time, the air interface resource allocation information is used for informing the terminal that the base station dynamically adjusts the wide and narrow band air interface resources according to the wide and narrow band service data packets to be sent to the terminal at the current moment, and then the terminal can receive the narrow band service data packets and the wide band service data packets with corresponding allocation amounts from the base station and detect the received wide and narrow band service data packets.
Optionally, on the basis of this embodiment, sending the air interface resource configuration information to the terminal may include:
1) Performing signal waveform conversion, signal modulation and frequency conversion on the air interface resource allocation information to generate an air interface resource allocation signal; the air interface resource allocation signal comprises a narrowband resource allocation signal and/or a wideband resource allocation signal;
the terminal is a broadband-narrowband fusion terminal, can receive broadband signals and narrowband signals, can only generate one configuration signal for air interface resource configuration information and can send the configuration signal to the terminal, and can send the configuration signal to the terminal in broadband or narrowband.
2) And sending the air interface resource allocation signal to the terminal.
Specifically, the signal waveform conversion is mainly used for enabling the air interface resource configuration information to conform to the baseband signal waveform defined by the wide and narrow band cluster communication system.
The signal modulation is mainly used for modulating the air interface resource configuration information after signal waveform conversion into the corresponding time-frequency resource block. The signal modulation may be performed by using a multi-carrier modulation technique such as a filter bank multi-carrier technique (FBMC technique), a universal filter multi-carrier technique (UFMC technique), a generalized frequency division multiplexing technique (GFDM technique), and the like. The frequency conversion is mainly used for converting the frequency of the air interface resource configuration information which is suitable for the base station and is subjected to signal modulation into the frequency suitable for the terminal.
The narrowband resource allocation signal comprises a narrowband air interface resource allocation amount and the wideband resource allocation signal comprises a wideband air interface resource allocation amount. In the embodiment of the invention, the signal waveform conversion, the signal modulation and the frequency conversion are sequentially carried out on the air interface resource configuration information to generate the narrowband resource configuration signal and the wideband resource configuration signal, and the narrowband resource configuration signal and the wideband resource configuration signal are sent to the terminal, so that the terminal can timely receive the signal carrying the information related to the narrowband air interface resource configuration quantity and the wideband air interface resource configuration quantity from the base station, and the reliability of the communication of the wideband service data between the terminal and the base station is further improved.
In this embodiment, the normal communication requirement between the base station and the terminal is satisfied by performing signal waveform conversion, signal modulation and frequency conversion on the air interface resource configuration information.
Alternatively, on the basis of any of the above embodiments, referring to fig. 3, step S13 may include:
s21, determining the occupation amount of the narrow band air interface resources and the occupation amount of the broadband air interface resources required by the transmission traffic in the service data information;
specifically, the transmission traffic between the base station and the terminal refers to the data amount in the wide and narrow band service data packets transmitted during data communication between the base station and the terminal, so that the occupation amount of the wide band air interface resources and the occupation amount of the narrow band air interface resources required by the actually transmitted wide and narrow band service data packets can be determined according to the transmission traffic.
S22, according to the narrow band air interface resource occupation amount, the wide band air interface resource occupation amount, the narrow band channel condition, the wide band channel condition and the service level, scheduling and distributing the total air interface resource amount to generate the air interface resource configuration information;
the service scheduling conditions include: the narrowband channel condition, the wideband channel condition, and the traffic class.
In the embodiment of the invention, the determined narrow band air interface resource occupation amount, the determined wide band channel condition, the determined narrow band channel condition and the determined service level are taken as the scheduling and allocation basis together to schedule and allocate the total amount of the available air interface resources so as to generate the wide band air interface resource allocation information and the narrow band air interface resource allocation information.
By the method, the accuracy and the applicability of scheduling and distributing the total amount of available air interface resources are improved, and the aim of priority distribution according to the emergency degree of the service is fulfilled.
When the transmission traffic in the embodiment corresponding to fig. 1 is uplink transmission traffic, on the basis of the embodiment corresponding to fig. 1, another air interface resource scheduling method applied to a base station is disclosed in this embodiment, please refer to fig. 4, and the method specifically includes the following steps:
s31: receiving a first narrowband service data packet corresponding to the narrowband air interface resource allocation amount and a first broadband service data packet corresponding to the broadband air interface resource allocation amount from a terminal;
the allocation quantity of the narrowband air interface resources and the allocation quantity of the broadband air interface resources are determined according to the uplink transmission traffic.
Specifically, when the transmission traffic between the base station and the terminal is uplink transmission traffic, after the base station sends the air interface resource allocation information to the terminal, the base station receives a first narrowband service data packet corresponding to the narrowband air interface resource allocation carried by the air interface resource allocation information and a first wideband service data packet corresponding to the wideband air interface resource allocation to the terminal, so as to realize data communication of the wideband and narrowband service data packets transmitted by the terminal to the base station on the basis that the base station dynamically adjusts the wideband and narrowband air interface resource allocation according to the uplink transmission traffic.
S32: analyzing the first narrowband service data packet and the first broadband service data packet;
specifically, the base station analyzes the received first narrowband service data packet and the first wideband service data packet, and can identify information such as data types, data sizes and the like in the wideband and narrowband service data packets so as to perform corresponding processing operations on the wideband and narrowband service data packets.
After detecting the first narrowband service data packet and the first wideband service data packet, the base station may forward the first narrowband service data packet and the first wideband service data packet to a background device, such as a wideband and narrowband converged core network system and a trunking dispatch application integrated platform system.
In the embodiment of the invention, after the transmission traffic is uplink transmission traffic and the air interface resource allocation information is sent to the terminal, the first narrowband service data packet corresponding to the narrowband air interface resource allocation amount and the first wideband service data packet corresponding to the wideband air interface resource allocation amount are received from the terminal and detected, so that the on-demand adjustment of the wide and narrowband air interface resources in the data communication process of the terminal for transmitting the wide and narrowband service data packets to the base station is realized, and the air interface resource utilization rate is further improved.
When the transmission traffic in the embodiment corresponding to fig. 1 is downlink transmission traffic, on the basis of the embodiment corresponding to fig. 1, the embodiment discloses another air interface resource scheduling method applied to the base station, and the method specifically includes the following steps:
transmitting a second narrowband service data packet corresponding to the narrowband air interface resource allocation amount and a second broadband service data packet corresponding to the broadband air interface resource allocation amount to the terminal, so that the terminal detects the second narrowband service data packet and the second broadband service data packet;
the allocation quantity of the narrowband air interface resources and the allocation quantity of the broadband air interface resources are generated according to the downlink transmission traffic.
Specifically, when the transmission traffic between the base station and the terminal is downlink transmission traffic, after the base station sends the air interface resource allocation information to the terminal, the base station sends a second narrowband service data packet corresponding to the narrowband air interface resource allocation carried by the air interface resource allocation information and a second wideband service data packet corresponding to the wideband air interface resource allocation to the terminal, so as to realize data communication of the base station transmitting the wideband and narrowband service data packets to the terminal on the basis that the base station dynamically adjusts the wideband and narrowband air interface resource allocation according to the downlink transmission traffic.
The terminal detects the received second narrowband service data packet and the second wideband service data packet, so that the terminal can identify information such as data types, data sizes and the like in the wideband and narrowband service data packets, and accordingly process the wideband and narrowband service data packets.
In the embodiment of the invention, the second narrow-band service data packet corresponding to the narrow-band air interface resource allocation amount and the second wide-band service data packet corresponding to the wide-band air interface resource allocation amount are sent to the terminal after the transmission traffic is downlink transmission traffic and the air interface resource allocation information is sent to the terminal, so that the on-demand adjustment of wide-band and narrow-band air interface resources in the data communication process of transmitting the wide-band and narrow-band service data packet from the base station to the terminal is realized, and the air interface resource utilization rate is further improved.
Optionally, on the basis of the above embodiment of the air interface resource scheduling method, another embodiment of the present invention discloses an air interface resource scheduling method applied to a terminal, referring to fig. 5, the method specifically includes the following steps:
s41, receiving air interface resource allocation information sent by a base station;
the air interface resource configuration information comprises narrowband air interface resource configuration information and/or wideband air interface resource configuration information.
S42, data transmission is carried out according to the air interface resource configuration information.
Optionally, based on the present embodiment, step S42 includes two data transmission modes, one is an uplink data transmission mode and one is a downlink data transmission mode, which will be described separately.
1. An uplink data transmission mode;
referring to fig. 6, step S42 may include:
s51, determining data packet transmission resource configuration information corresponding to the air interface resource configuration information;
specifically, the data packet transmission resource allocation information is used as a transmission basis for the terminal to send the data packet to the base station, which is beneficial to improving the transmission reliability of the wide and narrow band service data packets.
S52, generating a first narrowband service data packet corresponding to the narrowband air interface resource allocation information and/or a first broadband service data packet corresponding to the broadband air interface resource allocation information;
specifically, a first narrowband service data packet corresponding to the narrowband air interface resource allocation amount in the air interface resource allocation information and a first broadband service data packet corresponding to the broadband air interface resource allocation amount are generated, and the first narrowband service data packet and the first broadband service data packet are respectively filtered and isolated;
specifically, because the generated first narrowband service data packet and the first broadband service data packet have mutual interference of signals during simultaneous transmission, the two packets need to be respectively filtered and isolated to eliminate the signal interference, thereby ensuring the integrity of simultaneous transmission of the narrowband service data packet and the broadband service data packet.
The filtering isolation mode can be achieved by adopting a filter.
S53, according to the data packet transmission resource allocation information, the first narrowband service data packet and/or the first broadband service data packet are sent to the base station, so that the base station analyzes the first narrowband service data packet and/or the first broadband service data packet.
The data packet transmission resource allocation information is used as a transmission basis for the terminal to send the first narrowband service data packet and the first broadband service data packet which are subjected to filtering isolation to the base station, and the first narrowband service data packet and the first broadband service data packet which are subjected to filtering isolation are simultaneously sent to the base station, so that the base station which is in a narrowband trunking communication system and a broadband trunking communication system can be fused to independently perform data processing operation on the transmitted first narrowband service data packet and the first broadband service data packet, the data processing speed of the base station on the narrowband service data packet and the broadband service data packet is accelerated, and the improvement of the utilization rate of limited air interface resources is realized.
In the embodiment of the invention, the base station transmits the data packet to the terminal, and the received air interface resource allocation information is mainly used for informing the terminal that the base station has allocated the required wide and narrow air interface resources for the base station at the current moment, and the terminal can send the first narrow-band service data packet and the first broadband service data packet with corresponding allocation amounts to the base station so as to realize the data communication of the wide and narrow-band service data packet to the base station by the terminal on the basis that the base station dynamically adjusts the allocation amounts of the wide and narrow air interface resources according to the uplink transmission traffic.
2. A downlink data transmission mode;
referring to fig. 7, step S42 may include:
s61, receiving a second narrowband service data packet corresponding to the narrowband air interface resource allocation information and/or a second wideband service data packet corresponding to the wideband air interface resource allocation information from the base station;
specifically, in the embodiment of the invention, the base station transmits the data packet to the terminal, so after the base station transmits the air interface resource allocation information to the terminal, the base station also transmits a second narrowband service data packet corresponding to the narrowband air interface resource allocation amount carried by the air interface resource allocation information and a second wideband service data packet corresponding to the wideband air interface resource allocation amount to the terminal, thereby realizing the data communication of the base station transmitting the wideband and narrowband service data packet to the terminal on the basis of dynamically adjusting the wideband and narrowband air interface resource allocation amounts according to the downlink transmission traffic.
S62, analyzing the second narrowband service data packet and/or the second broadband service data packet.
Specifically, the terminal detects the received second narrowband service data packet and the second wideband service data packet, so that the terminal can identify information such as data types, data volume and the like in the wideband and narrowband service data packets, and accordingly process the wideband and narrowband service data packets.
The embodiment of the invention discloses an air interface resource scheduling method which is applied to a terminal and can realize uplink data transmission and downlink data transmission between a base station and the terminal, thereby realizing the purposes that the base station reasonably transmits or receives wide and narrow band service data packets with corresponding configuration quantities to the terminal according to the total amount of available air interface resources after flexible scheduling and distribution, and being beneficial to improving the utilization rate of the air interface resources by the base station and the data communication efficiency between the terminal and the base station.
In the above embodiment, the air interface resources use 5G unified time-frequency resources, and specifically referring to fig. 8, unlike the 4G standard, the size of the air interface time-frequency resource block in 5G is not a single specification, but can be configured flexibly, so that the air interface time-frequency resource block conforms to the flexible and variable period and cyclic prefix CP length, thereby meeting different service requirements, and being beneficial to fully utilizing the fragmented spectrum resources. More importantly, different air interface waveforms can be deployed in the time-frequency resource blocks so as to adapt to the requirements of different services of the upper layer. Such as an adapted internet service, a real-time internet of vehicles service, a voice call video service, a television/video broadcast/multicast service.
In the existing LTE system, the side lobe of the adopted OFDM waveform is larger, the adjacent channel spectrum is seriously leaked, and the signals between adjacent resource blocks are difficult to be well isolated. Thus, in order to effectively isolate signals in adjacent time-frequency resource blocks, 5G studies propose new multicarrier modulation waveforms, such as FBMC, etc., as shown in fig. 9.
Compared with an OFDM waveform adopted by an LTE system, the FBMC waveform has good spectrum isolation characteristics, and the passband and the stopband of a signal spectrum can be dynamically and flexibly adjusted according to requirements by designing different filter banks, so that the isolation performance is ensured, and meanwhile, the filter has a narrower transition zone, and the fact that a useful spectrum cannot be excessively wasted is ensured, as shown in a figure 10.
Optionally, on the basis of the embodiment of the air interface resource scheduling method, another embodiment of the present invention provides an air interface resource scheduling device, where the air interface resource scheduling device may be installed inside a base station or inside a core network.
Referring to fig. 11, the air interface resource scheduling apparatus may include:
an information determining unit 101 for determining service data information between the base station and the terminal; the service data information comprises transmission traffic and/or service scheduling conditions;
a resource obtaining unit 102, configured to obtain a currently available air interface resource;
a resource allocation unit 103, configured to schedule and allocate the total amount of the available air interface resources according to the service data information, and generate air interface resource configuration information; the air interface resource configuration information comprises narrow-band air interface resource configuration information and/or broadband air interface resource configuration information;
And the data transmission unit 104 is configured to perform data transmission according to the air interface resource configuration information.
Further, the data transmission unit 104 may include:
the first transmission unit is used for transmitting or receiving data by using the same radio frequency unit and the same feeder system according to the narrowband air interface resource configuration information and/or the broadband air interface resource configuration information;
and the second transmission unit is used for transmitting or receiving data by using the same radio frequency unit according to the narrowband air interface resource configuration information and/or the broadband air interface resource configuration information.
In this embodiment, the total amount of available air interface resources is scheduled and allocated according to service data information between the base station and the terminal, so as to generate air interface resource configuration information including narrowband air interface resource configuration information and/or wideband air interface resource configuration information, and then data transmission is performed according to the air interface resource configuration information. Therefore, the total amount of available air interface resources is flexibly scheduled and allocated according to the actual service data information between the base station and the terminal, so that the air interface resources are dynamically allocated as required when the base station and the terminal perform bidirectional data communication, and the air interface resource utilization rate is further improved.
It should be noted that, in the working process of each unit in this embodiment, please refer to the corresponding description in the above embodiment, and the description is omitted here.
Optionally, on the basis of the embodiment of any one of the air interface resource scheduling devices, the method further includes:
and the information sending unit is used for scheduling and distributing the total amount of the available air interface resources according to the service data information by the resource distribution unit, and sending the air interface resource configuration information to the terminal after generating the air interface resource configuration information so that the terminal performs data transmission according to the received air interface resource configuration information.
Further, the information transmitting unit includes:
the information processing unit is used for carrying out signal waveform conversion, signal modulation and frequency conversion on the air interface resource allocation information to generate an air interface resource allocation signal; the air interface resource allocation signal comprises a narrowband resource allocation signal and/or a wideband resource allocation signal;
and the information sending unit is used for sending the air interface resource allocation signal to the terminal.
In this embodiment, the normal communication requirement between the base station and the terminal is satisfied by performing signal waveform conversion, signal modulation and frequency conversion on the air interface resource configuration information.
It should be noted that, in the working process of each unit in this embodiment, please refer to the corresponding description in the above embodiment, and the description is omitted here.
Optionally, on the basis of the embodiment of any one of the air interface resource scheduling devices, the resource allocation unit includes:
the consumption determining unit is used for determining the narrow band air interface resource occupation amount and the wide band air interface resource occupation amount required by the transmission of the service volume in the service data information;
the information generating unit is used for scheduling and distributing the total amount of the air interface resources according to the occupation amount of the narrow-band air interface resources, the occupation amount of the wide-band air interface resources, the narrow-band channel condition, the wide-band channel condition and the service level to generate the air interface resource configuration information;
the service scheduling conditions include: the narrowband channel condition, the wideband channel condition, and the traffic class.
By the method, the accuracy and the applicability of scheduling and distributing the total amount of available air interface resources are improved, and the aim of priority distribution according to the emergency degree of the service is fulfilled.
It should be noted that, in the working process of each unit in this embodiment, please refer to the corresponding description in the above embodiment, and the description is omitted here.
Optionally, on the basis of the embodiment of the air interface resource scheduling method applied to the terminal, another embodiment of the present invention provides an air interface resource scheduling device, which is applied to the terminal, referring to fig. 12, the air interface resource scheduling device may include:
an information receiving unit 201, configured to receive air interface resource configuration information sent by a base station; the air interface resource configuration information comprises narrow-band air interface resource configuration information and/or broadband air interface resource configuration information;
and the data transmission unit 202 is configured to perform data transmission according to the air interface resource configuration information.
Further, the data transmission unit may include:
an information determining unit, configured to determine packet transmission resource configuration information corresponding to the air interface resource configuration information;
the data generation unit is used for generating a first narrowband service data packet corresponding to the narrowband air interface resource allocation information and/or a first broadband service data packet corresponding to the broadband air interface resource allocation information;
and the data sending unit is used for sending the first narrowband service data packet and/or the first broadband service data packet to the base station according to the data packet transmission resource configuration information so that the base station analyzes the first narrowband service data packet and/or the first broadband service data packet.
Further, the data transmission unit may include:
a data receiving unit, configured to receive, from the base station, a second narrowband service data packet corresponding to the narrowband air interface resource configuration information and/or a second wideband service data packet corresponding to the wideband air interface resource configuration information;
and the data analysis unit is used for analyzing the second narrowband service data packet and/or the second broadband service data packet.
The embodiment of the invention can realize uplink data transmission and downlink data transmission between the base station and the terminal, thereby realizing the purpose that the base station reasonably transmits or receives the wide and narrow band service data packets with corresponding configuration quantity to the terminal according to the total amount of available air interface resources after flexible scheduling and distribution, and being beneficial to improving the utilization rate of the air interface resources by the base station and the data communication efficiency between the terminal and the base station.
It should be noted that, in the working process of each unit in this embodiment, please refer to the corresponding description in the above embodiment, and the description is omitted here.
Optionally, based on the embodiments of the air interface resource scheduling method and apparatus, another embodiment of the present invention provides a scheduling device, where the scheduling device may be a base station or a core network.
The scheduling device may include: a memory and a processor;
wherein the memory is used for storing programs;
the processor invokes the program and is configured to:
determining service data information between a base station and a terminal; the service data information comprises transmission traffic and/or service scheduling conditions;
acquiring current available air interface resources;
scheduling and distributing the total amount of the available air interface resources according to the service data information to generate air interface resource configuration information; the air interface resource configuration information comprises narrow-band air interface resource configuration information and/or broadband air interface resource configuration information;
and carrying out data transmission according to the air interface resource configuration information.
In this embodiment, the total amount of available air interface resources is scheduled and allocated according to service data information between the base station and the terminal, so as to generate air interface resource configuration information including narrowband air interface resource configuration information and/or wideband air interface resource configuration information, and then data transmission is performed according to the air interface resource configuration information. Therefore, the total amount of available air interface resources is flexibly scheduled and allocated according to the actual service data information between the base station and the terminal, so that the air interface resources are dynamically allocated as required when the base station and the terminal perform bidirectional data communication, and the air interface resource utilization rate is further improved.
Optionally, based on the embodiments of the air interface resource scheduling method and apparatus, another embodiment of the present invention provides a terminal, which may include a receiving port and a processor;
the receiving port is used for receiving air interface resource allocation information sent by the base station; the air interface resource configuration information comprises narrow-band air interface resource configuration information and/or broadband air interface resource configuration information;
and the processor is used for carrying out data transmission according to the air interface resource allocation information.
The embodiment of the invention can realize uplink data transmission and downlink data transmission between the base station and the terminal, thereby realizing the purpose that the base station reasonably transmits or receives the wide and narrow band service data packets with corresponding configuration quantity to the terminal according to the total amount of available air interface resources after flexible scheduling and distribution, and being beneficial to improving the utilization rate of the air interface resources by the base station and the data communication efficiency between the terminal and the base station.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. An air interface resource scheduling method, which is characterized by comprising the following steps:
determining service data information between a base station and a terminal; the service data information comprises transmission service volume and service scheduling conditions; the service scheduling conditions comprise a narrowband channel condition, a wideband channel condition and a service grade, wherein the service grade is preset based on the times of the types of service data packets sent by the terminal;
acquiring the total amount of available air interface resources;
scheduling and distributing the total amount of the available air interface resources according to the service data information to generate air interface resource configuration information; the air interface resource configuration information comprises narrow-band air interface resource configuration information and/or broadband air interface resource configuration information;
and carrying out data transmission according to the air interface resource configuration information.
2. The method for scheduling air interface resources according to claim 1, wherein the scheduling and allocating the total amount of available air interface resources according to the service data information, after generating air interface resource configuration information, further comprises:
and sending the air interface resource configuration information to the terminal so that the terminal performs data transmission according to the received air interface resource configuration information.
3. The air interface resource scheduling method according to claim 1, wherein performing data transmission according to the air interface resource configuration information comprises:
according to the narrowband air interface resource configuration information and/or the wideband air interface resource configuration information, the same radio frequency unit and the same feeder system are used for transmitting or receiving data;
or, according to the narrowband air interface resource configuration information and/or the wideband air interface resource configuration information, the same radio frequency unit is used for transmitting or receiving data.
4. The method for scheduling air interface resources according to claim 1, wherein scheduling and allocating the total amount of available air interface resources according to the service data information, generating air interface resource allocation information, comprises:
determining the occupation amount of the narrowband air interface resources and the occupation amount of the broadband air interface resources required by the transmission traffic in the service data information;
and scheduling and distributing the total amount of the air interface resources according to the narrow-band air interface resource occupation amount, the wide-band air interface resource occupation amount, the narrow-band channel condition, the wide-band channel condition and the service level to generate the air interface resource configuration information.
5. The air interface resource scheduling method according to claim 2, wherein transmitting the air interface resource configuration information to the terminal comprises:
Performing signal waveform conversion, signal modulation and frequency conversion on the air interface resource allocation information to generate an air interface resource allocation signal; the air interface resource allocation signal comprises a narrowband resource allocation signal and/or a wideband resource allocation signal;
and sending the air interface resource allocation signal to the terminal.
6. The air interface resource scheduling method is characterized by being applied to a terminal and comprising the following steps:
receiving air interface resource configuration information sent by a base station; the air interface resource configuration information comprises narrow-band air interface resource configuration information and/or broadband air interface resource configuration information; the air interface resource allocation information is generated by the base station according to the service data information by scheduling and allocating the total amount of available air interface resources; the service data information comprises transmission service volume and service scheduling conditions; the service scheduling conditions comprise a narrowband channel condition, a wideband channel condition and a service grade, wherein the service grade is preset based on the times of the types of service data packets sent by the terminal;
and carrying out data transmission according to the air interface resource configuration information.
7. The air interface resource scheduling method according to claim 6, wherein performing data transmission according to the air interface resource configuration information comprises:
Determining data packet transmission resource configuration information corresponding to the air interface resource configuration information;
generating a first narrowband service data packet corresponding to the narrowband air interface resource configuration information and/or a first broadband service data packet corresponding to the broadband air interface resource configuration information;
and transmitting the first narrowband service data packet and/or the first broadband service data packet to the base station according to the data packet transmission resource configuration information so that the base station analyzes the first narrowband service data packet and/or the first broadband service data packet.
8. The air interface resource scheduling method according to claim 6, wherein performing data transmission according to the air interface resource configuration information comprises:
receiving a second narrowband service data packet corresponding to the narrowband air interface resource allocation information and/or a second wideband service data packet corresponding to the wideband air interface resource allocation information from the base station;
and analyzing the second narrowband service data packet and/or the second broadband service data packet.
9. A scheduling apparatus, comprising: a memory and a processor;
wherein the memory is used for storing programs;
the processor invokes the program and is configured to:
Determining service data information between a base station and a terminal; the service data information comprises transmission service volume and service scheduling conditions; the service scheduling conditions comprise a narrowband channel condition, a wideband channel condition and a service grade, wherein the service grade is preset based on the times of the types of service data packets sent by the terminal;
acquiring the total amount of available air interface resources;
scheduling and distributing the total amount of the available air interface resources according to the service data information to generate air interface resource configuration information; the air interface resource configuration information comprises narrow-band air interface resource configuration information and/or broadband air interface resource configuration information;
and carrying out data transmission according to the air interface resource configuration information.
10. A terminal comprising a receiving port and a processor;
the receiving port is used for receiving air interface resource allocation information sent by the base station; the air interface resource configuration information comprises narrow-band air interface resource configuration information and/or broadband air interface resource configuration information; the air interface resource allocation information is generated by the base station according to the service data information by scheduling and allocating the total amount of available air interface resources; the service data information comprises transmission service volume and service scheduling conditions; the service scheduling conditions comprise a narrowband channel condition, a wideband channel condition and a service grade, wherein the service grade is preset based on the times of the types of service data packets sent by the terminal;
And the processor is used for carrying out data transmission according to the air interface resource allocation information.
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